freecalypso-sw: gsm-fw/serial/uart.c annotate

annotate gsm-fw/serial/uart.c @ 992:a7b0b426f9ca

target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.

author	Mychaela Falconia <falcon@ivan.Harhan.ORG>
date	Wed, 30 Dec 2015 21:28:41 +0000
parents	afceeeb2cba1
children

rev	line source
116 22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	3 * UART.C
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	4 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	5 * This module allows to use the UARTs of chipset 1.5 in interrupt mode for
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	6 * the Receive side and in polling mode for the Transmit side.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	7 * The driver calls a user's function when characters are received.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	8 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	9 * (C) Texas Instruments 1999
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	10 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	11 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	12
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	13 #include "../include/config.h"
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	14 #include "../include/sys_types.h"
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	15
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	16 #include "serialswitch.h"
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	17 #include "uart.h"
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	18
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	19 #include <string.h>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	20
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	21 #include "../bsp/mem.h"
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	22
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	23 #if (BOARD != 34)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	24 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	25 * Needed to reset and restart the sleep timer in case of incoming characters.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	26 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	27
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	28 extern SYS_BOOL uart_sleep_timer_enabled;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	29 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	30
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	31 #define BUFFER_SIZE (512) /* In bytes. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	32 #define FIFO_SIZE (64) /* In bytes. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	33
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	34 #define STX 0x02
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	35 #define DLE 0x10
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	36
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	37 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	38 * TLR is used to program the RX FIFO trigger levels. FCR[7:4] are not used.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	39 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	40
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	41 #define RX_FIFO_TRIGGER_LEVEL (12 << 4)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	42
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	43
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	44 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	45 * 16750 addresses. Registers accessed when LCR[7] = 0.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	46 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	47
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	48 #define RHR (0x00) /* Rx buffer register - Read access */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	49 #define THR (0x00) /* Tx holding register - Write access */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	50 #define IER (0x01) /* Interrupt enable register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	51
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	52 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	53 * 16750 addresses. Registers accessed when LCR[7] = 1.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	54 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	55
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	56 #define DLL (0x00) /* Divisor latch (LSB) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	57 #define DLM (0x01) /* Divisor latch (MSB) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	58
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	59
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	60 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	61 * EFR is accessed when LCR[7:0] = 0xBF.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	62 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	63
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	64 #define EFR (0x02) /* Enhanced feature register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	65
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	66
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	67 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	68 * 16750 addresses. Bit 5 of the FCR register is accessed when LCR[7] = 1.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	69 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	70
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	71 #define IIR (0x02) /* Interrupt ident. register - Read only */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	72 #define FCR (0x02) /* FIFO control register - Write only */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	73 #define LCR (0x03) /* Line control register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	74 #define MCR (0x04) /* Modem control register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	75 #define LSR (0x05) /* Line status register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	76 #define MSR (0x06) /* Modem status register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	77 #define TCR (0x06) /* Transmission control register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	78 #define TLR (0x07) /* Trigger level register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	79 #define MDR1 (0x08) /* Mode definition register 1 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	80 #define SCR (0x10) /* Supplementary Control register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	81 #define SSR (0x11) /* Supplementary Status register */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	82
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	83
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	84 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	85 * Supplementary control register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	86 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	87
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	88 #define TX_EMPTY_CTL_IT (0x08)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	89 #define RX_CTS_WAKE_UP_ENABLE_BIT (4) /* Use RESET_BIT and SET_BIT macros. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	90
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	91 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	92 * Enhanced feature register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	93 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	94
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	95 #define ENHANCED_FEATURE_BIT (4) /* Use RESET_BIT and SET_BIT macros. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	96
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	97 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	98 * Mode definition register 1.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	99 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	100
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	101 #define UART_MODE (0x00)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	102 #define SIR_MODE (0x01)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	103 #define UART_MODE_AUTOBAUDING (0x02) /* Reserved in UART/IrDA. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	104 #define RESET_DEFAULT_STATE (0x07)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	105 #define IR_SLEEP_DISABLED (0x00)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	106 #define IR_SLEEP_ENABLED (0x08)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	107 #define SIR_TX_WITHOUT_ACREG2 (0x00) /* Reserved in UART/modem. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	108 #define SIR_TX_WITH_ACREG2 (0x20) /* Reserved in UART/modem. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	109 #define FRAME_LENGTH_METHOD (0x00) /* Reserved in UART/modem. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	110 #define EOT_BIT_METHOD (0x80) /* Reserved in UART/modem. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	111
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	112 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	113 * Supplementary Status Register
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	114 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	115
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	116 #define TX_FIFO_FULL (0x01)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	117
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	118
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	119 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	120 * Interrupt enable register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	121 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	122
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	123 #define ERBI (0x01) /* Enable received data available interrupt */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	124 #define ETBEI (0x02) /* Enable transmitter holding register empty interrupt */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	125 #define ELSI (0x04) /* Enable receiver line status interrupt */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	126 #define EDSSI (0x08) /* Enable modem status interrupt */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	127 #define IER_SLEEP (0x10) /* Enable sleep mode */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	128
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	129 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	130 * Modem control register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	131 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	132
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	133 #define MDTR (0x01) /* Data terminal ready. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	134 #define MRTS (0x02) /* Request to send. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	135 #define TCR_TLR_BIT (6)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	136
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	137 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	138 * Line status register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	139 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	140
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	141 #define DR (0x01) /* Data ready */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	142 #define OE (0x02) /* Overrun error */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	143 #define PE (0x04) /* Parity error */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	144 #define FE (0x08) /* Framing error */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	145 #define BI (0x10) /* Break interrupt */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	146 #define THRE (0x20) /* Transmitter holding register (FIFO empty) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	147 #define TEMT (0x40) /* Transmitter empty (FIFO and TSR both empty) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	148
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	149 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	150 * Interrupt identification register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	151 * Bit 0 is set to 0 if an IT is pending.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	152 * Bits 1 and 2 are used to identify the IT.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	153 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	154
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	155 #define IIR_BITS_USED (0x07)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	156 #define IT_NOT_PENDING (0x01)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	157 #define RX_DATA (0x04)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	158 #define TX_EMPTY (0x02)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	159 #define MODEM_STATUS (0x00)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	160
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	161 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	162 * Line control register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	163 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	164
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	165 #define WLS_5 (0x00) /* Word length: 5 bits */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	166 #define WLS_6 (0x01) /* Word length: 6 bits */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	167 #define WLS_7 (0x02) /* Word length: 7 bits */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	168 #define WLS_8 (0x03) /* Word length: 8 bits */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	169 #define STB (0x04) /* Number of stop bits: 0: 1, 1: 1,5 or 2 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	170 #define PEN (0x08) /* Parity enable */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	171 #define EPS (0x10) /* Even parity select */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	172 #define BREAK_CONTROL (0x40) /* Enable a break condition */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	173 #define DLAB (0x80) /* Divisor latch access bit */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	174 #define DIV_EN_BIT (7)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	175
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	176 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	177 * FIFO control register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	178 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	179
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	180 #define FIFO_ENABLE (0x01)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	181 #define RX_FIFO_RESET (0x02)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	182 #define TX_FIFO_RESET (0x04)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	183
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	184 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	185 * These macros allow to read and write a UART register.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	186 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	187
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	188 #define READ_UART_REGISTER(UART,REG) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	189 ((volatile SYS_UWORD8 ) ((UART)->base_address + (REG)))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	190
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	191 #define WRITE_UART_REGISTER(UART,REG,VALUE) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	192 ((volatile SYS_UWORD8 ) ((UART)->base_address + (REG))) = (VALUE)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	193
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	194 #define RESET_BIT(UART,REG,BIT) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	195 (WRITE_UART_REGISTER ( \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	196 UART, REG, READ_UART_REGISTER (UART, REG) & ~(1 << (BIT))))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	197
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	198 #define SET_BIT(UART,REG,BIT) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	199 (WRITE_UART_REGISTER ( \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	200 UART, REG, READ_UART_REGISTER (UART, REG) \| (1 << (BIT))))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	201
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	202 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	203 * These macros allow to enable or disable the wake-up interrupt.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	204 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	205
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	206 #define ENABLE_WAKEUP_INTERRUPT(UART) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	207 SET_BIT(UART, SCR, RX_CTS_WAKE_UP_ENABLE_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	208
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	209 #define DISABLE_WAKEUP_INTERRUPT(UART) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	210 RESET_BIT(UART, SCR, RX_CTS_WAKE_UP_ENABLE_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	211
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	212
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	213 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	214 * This macro allows to know if the RX buffer is full. It must be called only
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	215 * from the RX interrupt handler. If it is called from the application, the
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	216 * rx_in pointer may be updated if a RX interrupt occurs.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	217 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	218
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	219 #define RX_BUFFER_FULL(UART) \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	220 (((UART)->rx_in == (UART)->rx_out - 1) \|\| \
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	221 ((UART)->rx_in == (UART)->rx_out + BUFFER_SIZE - 1))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	222
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	223
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	224 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	225 * This allows monitor the last 32 inbound buffers gotten from the RX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	226 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	227
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	228 //#define UART_RX_BUFFER_DUMP
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	229
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	230 #ifdef UART_RX_BUFFER_DUMP
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	231 struct {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	232 char rx_buffer[(BUFFER_SIZE + 1) << 5];
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	233 char *rx_in;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	234 int errors_count;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	235 int wrong_interrupt_status;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	236 } uart_rx_buffer_dump = {0};
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	237 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	238
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	239
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	240 typedef struct s_uart {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	241
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	242 SYS_UWORD32 base_address;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	243
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	244 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	245 * Buffers management.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	246 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	247
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	248 char rx_buffer[BUFFER_SIZE + 1];
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	249 char *rx_in;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	250 char *rx_out;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	251 void (*callback_function) (void);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	252
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	253 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	254 * Errors counters.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	255 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	256
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	257 SYS_UWORD32 framing_error;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	258 SYS_UWORD32 parity_error;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	259 SYS_UWORD32 overrun_error;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	260
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	261 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	262 * Framing flags.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	263 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	264
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	265 SYS_BOOL dle_detected;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	266 SYS_BOOL inframe;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	267 SYS_BOOL encapsulation_flag;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	268 unsigned char frame_length;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	269
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	270 } t_uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	271
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	272 static t_uart uart_parameter[NUMBER_OF_TR_UART];
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	273
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	274 static const SYS_UWORD32 base_address[NUMBER_OF_TR_UART] =
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	275 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	276 MEM_UART_IRDA,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	277 MEM_UART_MODEM
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	278 #if (CHIPSET == 12)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	279 , MEM_UART_MODEM2
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	280 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	281 };
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	282
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	283
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	284 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	285 * DLL (LSB) and DLH (MSB) registers values using the 13 MHz clock.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	286 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	287
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	288 static const SYS_UWORD8 dll[] =
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	289 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	290 2, /* 406250 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	291 7, /* 115200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	292 14, /* 57600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	293 21, /* 38400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	294 24, /* 33900 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	295 28, /* 28800 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	296 42, /* 19200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	297 56, /* 14400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	298 84, /* 9600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	299 169, /* 4800 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	300 83, /* 2400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	301 165, /* 1200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	302 74, /* 600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	303 148, /* 300 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	304 40, /* 150 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	305 81 /* 75 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	306 };
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	307
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	308 static const SYS_UWORD8 dlh[] =
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	309 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	310 0, /* 406250 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	311 0, /* 115200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	312 0, /* 57600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	313 0, /* 38400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	314 0, /* 33900 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	315 0, /* 28800 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	316 0, /* 19200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	317 0, /* 14400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	318 0, /* 9600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	319 0, /* 4800 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	320 1, /* 2400 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	321 2, /* 1200 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	322 5, /* 600 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	323 10, /* 300 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	324 21, /* 150 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	325 42 /* 75 baud. */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	326 };
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	327
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	328
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	329 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	330 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	331 * read_rx_fifo
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	332 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	333 * Purpose : Check the bytes written into the RX FIFO. Characters are not
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	334 * written in the RX buffer if it is full. The HISR is called if
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	335 * enough characters are received.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	336 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	337 * Arguments: In : uart: pointer on UART structure.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	338 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	339 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	340 * Returns : none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	341 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	342 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	343
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	344 static void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	345 read_rx_fifo (t_uart *uart)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	346 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	347 volatile SYS_UWORD8 status;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	348 int error_detected;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	349 SYS_UWORD8 char_received;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	350
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	351 #if (BOARD != 34)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	352 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	353 * Since new characters have been received, the sleep timer is reset then
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	354 * restarted preventing the system to enter deep-sleep for a new period of
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	355 * time.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	356 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	357
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	358 SER_activate_timer_hisr ();
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	359 uart_sleep_timer_enabled = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	360 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	361
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	362 status = READ_UART_REGISTER (uart, LSR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	363
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	364 while (status & DR) { /* While RX FIFO is not empty... */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	365
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	366 error_detected = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	367
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	368 char_received = READ_UART_REGISTER (uart, RHR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	369
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	370 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	371 * Check if an error (overrun, parity, framing or break) is associated with the
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	372 * received data. If there is an error the byte is not copied into the
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	373 * RX buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	374 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	375
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	376 if (status & (OE \| PE \| FE \| BI)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	377
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	378 if (status & PE)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	379 uart->parity_error++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	380
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	381 if (status & FE)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	382 uart->framing_error++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	383
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	384 if (status & OE)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	385 uart->overrun_error++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	386
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	387 error_detected = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	388 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	389
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	390 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	391 * If there is no error the byte is copied into the RX
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	392 * buffer if it is not full.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	393 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	394
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	395 if (!error_detected && !RX_BUFFER_FULL (uart)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	396
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	397 *(uart->rx_in++) = char_received;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	398
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	399 if (uart->rx_in == &(uart->rx_buffer[0]) + BUFFER_SIZE + 1)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	400 uart->rx_in = &(uart->rx_buffer[0]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	401
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	402 #ifdef UART_RX_BUFFER_DUMP
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	403 *(uart_rx_buffer_dump.rx_in)++ = char_received;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	404
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	405 if (uart_rx_buffer_dump.rx_in == uart_rx_buffer_dump.rx_buffer + sizeof (uart_rx_buffer_dump.rx_buffer))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	406 uart_rx_buffer_dump.rx_in = uart_rx_buffer_dump.rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	407 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	408 else {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	409 uart_rx_buffer_dump.errors_count++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	410 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	411 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	412
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	413 status = READ_UART_REGISTER (uart, LSR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	414 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	415
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	416 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	417 * Call the user's function.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	418 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	419
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	420 if (uart->callback_function != NULL)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	421 (*(uart->callback_function)) ();
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	422 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	423
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	424 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	425 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	426 * initialize_uart_sleep
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	427 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	428 * Purpose : Performs basic UART hardware initialization including sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	429 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	430 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	431 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	432 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	433 * Returns: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	434 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	435 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	436 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	437 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	438
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	439 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	440 initialize_uart_sleep (T_tr_UartId uart_id)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	441 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	442 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	443 int index;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	444 SYS_UWORD8 dummy;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	445
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	446 for (index = 0; index < NUMBER_OF_TR_UART; index++)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	447 uart_parameter[index].base_address = base_address[index];
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	448
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	449 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	450
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	451 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	452 * Mask all interrupts causes and disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	453 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	454
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	455 WRITE_UART_REGISTER (uart, IER, 0x00);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	456
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	457 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	458 * Reset UART mode configuration.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	459 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	460
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	461 WRITE_UART_REGISTER (uart, MDR1, RESET_DEFAULT_STATE);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	462
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	463 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	464 * LCR[7:0] = 0xBF to allow to access EFR
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	465 * EFR[4] = 1 to allow to program IER[4].
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	466 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	467
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	468 WRITE_UART_REGISTER (uart, LCR, 0xBF);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	469 SET_BIT (uart, EFR, ENHANCED_FEATURE_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	470 WRITE_UART_REGISTER (uart, LCR, 0x83);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	471
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	472 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	473 * Enable FIFO and reset them.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	474 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	475
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	476 WRITE_UART_REGISTER (uart, FCR, FIFO_ENABLE \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	477 RX_FIFO_RESET \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	478 TX_FIFO_RESET);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	479
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	480 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	481 * Program the baud generator (dummy 115200).
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	482 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	483
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	484 WRITE_UART_REGISTER (uart, DLL, 0x07);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	485 WRITE_UART_REGISTER (uart, DLM, 0x00);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	486
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	487 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	488 * LCR[7] = 0 to allow to access IER and RHR - normal mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	489 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	490
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	491 RESET_BIT (uart, LCR, DIV_EN_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	492
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	493 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	494 * Select UART mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	495 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	496
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	497 WRITE_UART_REGISTER (uart, MDR1, UART_MODE);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	498
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	499 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	500 * Clear Interrupt and check that Rx FIFO is empty.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	501 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	502
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	503 dummy = READ_UART_REGISTER (uart, IIR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	504
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	505 while (READ_UART_REGISTER (uart, LSR) & DR)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	506 dummy = READ_UART_REGISTER (uart, RHR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	507
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	508 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	509 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	510 * Enable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	511 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	512
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	513 WRITE_UART_REGISTER (uart, IER, IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	514 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	515 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	516
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	517
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	518 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	519 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	520 * UA_Init
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	521 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	522 * Purpose : Initializes the module and the UART.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	523 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	524 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	525 * baudrate: baud rate selected.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	526 * callback: user's function called characters are received.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	527 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	528 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	529 * Returns: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	530 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	531 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	532 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	533 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	534
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	535 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	536 UA_Init (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	537 T_tr_Baudrate baudrate,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	538 void (callback_function (void)))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	539 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	540 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	541 int index;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	542
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	543 #ifdef UART_RX_BUFFER_DUMP
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	544 uart_rx_buffer_dump.rx_in = uart_rx_buffer_dump.rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	545 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	546
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	547 for (index = 0; index < NUMBER_OF_TR_UART; index++)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	548 uart_parameter[index].base_address = base_address[index];
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	549
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	550 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	551
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	552 uart->rx_in = &(uart->rx_buffer[0]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	553 uart->rx_out = &(uart->rx_buffer[0]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	554
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	555 uart->callback_function = callback_function;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	556
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	557 uart->framing_error = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	558 uart->parity_error = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	559 uart->overrun_error = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	560
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	561 uart->dle_detected = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	562 uart->inframe = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	563 uart->encapsulation_flag = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	564 uart->frame_length = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	565
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	566 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	567 * Mask all interrupts causes and disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	568 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	569
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	570 WRITE_UART_REGISTER (uart, IER, 0x00);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	571
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	572 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	573 * Reset UART mode configuration.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	574 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	575
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	576 WRITE_UART_REGISTER (uart, MDR1, RESET_DEFAULT_STATE \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	577 IR_SLEEP_DISABLED \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	578 SIR_TX_WITHOUT_ACREG2 \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	579 FRAME_LENGTH_METHOD);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	580
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	581 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	582 * FIFO configuration.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	583 * EFR[4] = 1 to allow to program FCR[5:4] and MCR[7:5].
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	584 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	585
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	586 WRITE_UART_REGISTER (uart, LCR, 0xBF);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	587 SET_BIT (uart, EFR, ENHANCED_FEATURE_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	588
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	589 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	590 * Select the word length, the number of stop bits , the parity and set
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	591 * LCR[7] (DLAB) to allow to program FCR, DLL and DLM.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	592 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	593
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	594 WRITE_UART_REGISTER (uart, LCR, WLS_8 \| DLAB);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	595
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	596 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	597 * Program the trigger levels.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	598 * MCR[6] must be set to 1.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	599 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	600
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	601 SET_BIT (uart, MCR, TCR_TLR_BIT);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	602 WRITE_UART_REGISTER (uart, TCR, 0x0F);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	603 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	604 uart, TLR, RX_FIFO_TRIGGER_LEVEL);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	605
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	606 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	607 * Program the FIFO control register. Bit 0 must be set when other FCR bits
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	608 * are written to or they are not programmed.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	609 * FCR is a write-only register. It will not be modified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	610 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	611
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	612 WRITE_UART_REGISTER (uart, FCR, FIFO_ENABLE \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	613 RX_FIFO_RESET \| /* self cleared */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	614 TX_FIFO_RESET); /* self cleared */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	615
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	616 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	617 * Program the baud generator.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	618 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	619
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	620 WRITE_UART_REGISTER (uart, DLL, dll[baudrate]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	621 WRITE_UART_REGISTER (uart, DLM, dlh[baudrate]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	622
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	623
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	624 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	625 * Reset LCR[7] (DLAB) to have access to the RBR, THR and IER registers.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	626 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	627
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	628 WRITE_UART_REGISTER (uart, LCR, READ_UART_REGISTER (uart, LCR) & ~DLAB);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	629
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	630
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	631 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	632 * Select UART mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	633 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	634
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	635 WRITE_UART_REGISTER (uart, MDR1, UART_MODE \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	636 IR_SLEEP_DISABLED \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	637 SIR_TX_WITHOUT_ACREG2 \|
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	638 FRAME_LENGTH_METHOD);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	639
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	640 #if ((CHIPSET == 5) \|\| (CHIPSET == 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	641 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	642 * Unmask RX interrupt
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	643 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	644
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	645 WRITE_UART_REGISTER (uart, IER, ERBI);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	646 #else
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	647 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	648 * Unmask RX interrupt and allow sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	649 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	650
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	651 WRITE_UART_REGISTER (uart, IER, ERBI \| IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	652 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	653 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	654
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	655 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	656 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	657 * UA_ReadNChars
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	658 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	659 * Purpose : Reads N characters from the RX buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	660 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	661 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	662 * buffer : buffer address where the characters are
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	663 * copied.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	664 * chars_to_read: number of characters to read.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	665 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	666 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	667 * Returns : The number of characters read.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	668 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	669 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	670 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	671 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	672
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	673 SYS_UWORD32
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	674 UA_ReadNChars (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	675 char *buffer,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	676 SYS_UWORD32 chars_to_read)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	677 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	678 SYS_UWORD32 chars_in_rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	679 SYS_UWORD32 chars_to_copy;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	680 SYS_UWORD32 chars_written;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	681 char *rx_in;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	682 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	683
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	684 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	685
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	686 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	687 * A copy of the rx_in pointer is used because it may be updated by
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	688 * the interrupt handler.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	689 * Get the number of bytes available in the RX buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	690 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	691
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	692 rx_in = uart->rx_in;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	693
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	694 if (uart->rx_out <= rx_in)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	695 chars_in_rx_buffer = (SYS_UWORD32) (rx_in - uart->rx_out);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	696 else
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	697 chars_in_rx_buffer = (SYS_UWORD32) (rx_in - uart->rx_out + BUFFER_SIZE + 1);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	698
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	699 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	700 * No more bytes than those received may be written in the output buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	701 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	702
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	703 if (chars_in_rx_buffer >= chars_to_read)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	704 chars_to_copy = chars_to_read;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	705 else
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	706 chars_to_copy = chars_in_rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	707
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	708 chars_written = chars_to_copy;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	709
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	710 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	711 * Write the received bytes in the output buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	712 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	713
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	714 while (chars_to_copy) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	715
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	716 (buffer++) = (uart->rx_out++);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	717 chars_to_copy--;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	718
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	719 if (uart->rx_out == &(uart->rx_buffer[0]) + BUFFER_SIZE + 1)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	720 uart->rx_out = &(uart->rx_buffer[0]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	721 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	722
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	723 return (chars_written);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	724 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	725
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	726 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	727 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	728 * UA_ReadNBytes
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	729 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	730 * Purpose : Reads and destuff N bytes from the RX buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	731 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	732 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	733 * buffer : buffer address where the bytes are copied.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	734 * chars_to_read: number of bytes to read.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	735 * Out: eof_detected : indicates if an EOF has been detected. Possible
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	736 * values are:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	737 * - 0: EOF not detected,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	738 * - 1: EOF detected and no more bytes left,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	739 * - 2: EOF not detected and more bytes left.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	740 * Users must invoke this function one more
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	741 * time in order to get those remaining
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	742 * bytes,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	743 * - 3: EOF detected and more bytes left. Users
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	744 * must invoke this function one more time
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	745 * in order to get those remaining bytes.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	746 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	747 * Returns : The number of bytes read.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	748 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	749 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	750 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	751 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	752
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	753 SYS_UWORD32
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	754 UA_ReadNBytes (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	755 char *buffer_p,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	756 SYS_UWORD32 bytes_to_read,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	757 SYS_BOOL *eof_detected_p)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	758 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	759 SYS_UWORD32 bytes_written;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	760 SYS_UWORD32 bytes_in_rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	761 SYS_UWORD32 bytes_to_process;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	762 t_uart *uart_p;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	763 char *rx_in_p;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	764
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	765 bytes_written = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	766 uart_p = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	767
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	768 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	769 * A copy of the rx_in pointer is used because it may be updated by
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	770 * the interrupt handler.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	771 * Get the number of bytes available in the RX buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	772 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	773
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	774 rx_in_p = uart_p->rx_in;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	775
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	776 if (uart_p->rx_out <= rx_in_p)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	777 bytes_in_rx_buffer = (SYS_UWORD32) (rx_in_p - uart_p->rx_out);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	778 else
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	779 bytes_in_rx_buffer = (SYS_UWORD32) (rx_in_p - uart_p->rx_out + BUFFER_SIZE + 1);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	780
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	781 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	782 * No more bytes than those received may be processed and then written
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	783 * in the output buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	784 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	785
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	786 if (bytes_in_rx_buffer > bytes_to_read) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	787 bytes_to_process = bytes_to_read;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	788
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	789 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	790 * More bytes left. Users must invoke this function one more time
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	791 * in order to get those remaining bytes.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	792 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	793
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	794 *eof_detected_p = 2;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	795 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	796 else {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	797 bytes_to_process = bytes_in_rx_buffer;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	798
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	799 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	800 * No more bytes left.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	801 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	802
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	803 *eof_detected_p = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	804 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	805
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	806 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	807 * Perform the byte destuffing and then write the "valid" received bytes in
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	808 * the output buffer.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	809 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	810
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	811 while ((bytes_to_process) && !(*eof_detected_p & 0x01)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	812
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	813 switch (*(uart_p->rx_out)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	814
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	815 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	816 * Current byte is DLE.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	817 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	818
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	819 case DLE:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	820
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	821 if (!uart_p->dle_detected) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	822
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	823 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	824 * No DLE previously detected =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	825 * Skip the current byte and set the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	826 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	827
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	828 uart_p->dle_detected = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	829 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	830 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	831
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	832 else { /* if (uart_p->dle_detected) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	833
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	834 if (uart_p->inframe) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	835
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	836 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	837 * DLE previously detected AND currently inside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	838 * Copy the current byte in the output buffer, reset the flag
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	839 * and increase the frame length.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	840 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	841
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	842 uart_p->dle_detected = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	843 uart_p->frame_length++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	844 (buffer_p++) = (uart_p->rx_out++);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	845 bytes_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	846 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	847
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	848 else { /* if (!uart_p->inframe) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	849
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	850 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	851 * DLE previously detected AND currently outside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	852 * Skip the current byte.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	853 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	854
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	855 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	856 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	857 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	858
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	859 break; /* case DLE */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	860
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	861 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	862 * Current byte is STX.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	863 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	864
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	865 case STX:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	866
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	867 if ((!uart_p->dle_detected) && (uart_p->inframe)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	868
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	869 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	870 * No DLE previously detected AND currently inside of a frame.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	871 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	872
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	873 if (uart_p->frame_length) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	874
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	875 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	876 * Frame length is not zero (End of Frame) =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	877 * Skip the current byte and set the flags (EOF).
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	878 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	879
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	880 uart_p->inframe = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	881 uart_p->frame_length = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	882 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	883
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	884 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	885 * More bytes left.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	886 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	887
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	888 if ((*eof_detected_p == 0) && (bytes_to_process))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	889 *eof_detected_p = 2;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	890
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	891 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	892 * EOF detected.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	893 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	894
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	895 (*eof_detected_p)++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	896 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	897
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	898 else { /* if (!uart_p->frame_length) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	899
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	900 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	901 * Frame length is zero (STX followed by another STX =
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	902 * Synchro lost but start of a new frame) =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	903 * Skip the current byte and keep the flag set.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	904 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	905
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	906 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	907 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	908 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	909
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	910 else if ((!uart_p->dle_detected) && (!uart_p->inframe)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	911
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	912 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	913 * No DLE previously detected AND currently outside of a
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	914 * frame (Start of Frame) =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	915 * Skip the current byte and set the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	916 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	917
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	918 uart_p->inframe = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	919 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	920 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	921
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	922 else if ((uart_p->dle_detected) && (uart_p->inframe)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	923
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	924 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	925 * DLE previously detected AND currently inside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	926 * Copy the current byte in the output buffer, reset the flag
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	927 * and increase the frame length.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	928 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	929
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	930 uart_p->dle_detected = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	931 uart_p->frame_length++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	932 (buffer_p++) = (uart_p->rx_out++);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	933 bytes_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	934 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	935
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	936 else if ((uart_p->dle_detected) && (!uart_p->inframe)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	937
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	938 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	939 * DLE previously detected AND currently outside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	940 * Skip the current byte and reset the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	941 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	942
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	943 uart_p->dle_detected = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	944 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	945 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	946
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	947 break; /* case STX */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	948
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	949 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	950 * Current byte is neither DLE nor STX.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	951 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	952
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	953 default:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	954
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	955 if (uart_p->inframe) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	956
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	957 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	958 * Currently inside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	959 * Copy the current byte in the output buffer and increase
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	960 * the frame length.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	961 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	962
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	963 uart_p->frame_length++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	964 (buffer_p++) = (uart_p->rx_out++);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	965 bytes_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	966 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	967
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	968 else { /* if (!uart_p->inframe) */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	969
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	970 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	971 * Currently outside of a frame =>
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	972 * Skip the current byte.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	973 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	974
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	975 uart_p->rx_out++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	976 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	977
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	978 break; /* default */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	979 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	980
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	981 if (uart_p->rx_out == &(uart_p->rx_buffer[0]) + BUFFER_SIZE + 1)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	982 uart_p->rx_out = &(uart_p->rx_buffer[0]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	983
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	984 bytes_to_process--;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	985 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	986
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	987 return (bytes_written);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	988 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	989
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	990
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	991 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	992 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	993 * UA_WriteNChars
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	994 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	995 * Purpose : Writes N characters in the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	996 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	997 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	998 * buffer : buffer address from which characters are
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	999 * written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1000 * bytes_to_write: number of bytes to write.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1001 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1002 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1003 * Returns : Number of bytes written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1004 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1005 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1006 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1007 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1008
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1009 SYS_UWORD32
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1010 UA_WriteNChars (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1011 char *buffer,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1012 SYS_UWORD32 chars_to_write)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1013 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1014 SYS_UWORD32 chars_in_tx_fifo;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1015 SYS_UWORD32 chars_written;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1016 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1017
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1018 chars_written = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1019 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1020
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1021 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1022 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1023 * Disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1024 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1025
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1026 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1027 uart, IER, READ_UART_REGISTER (uart, IER) & ~IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1028 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1029
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1030 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1031 * Copy the input buffer to the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1032 * Ulyssse Bug #44: TX FIFO full status bit (SSR[1]) is corrupted during
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1033 * one period of Bclock => Workaround S/W.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1034 * Write in TX FIFO only if FIFO is empty instead of writing in TX FIFO
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1035 * while FIFO is not full.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1036 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1037
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1038 if (READ_UART_REGISTER (uart, LSR) & THRE) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1039
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1040 chars_in_tx_fifo = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1041
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1042 while ((chars_written < chars_to_write) &&
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1043 (chars_in_tx_fifo < FIFO_SIZE)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1044
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1045 WRITE_UART_REGISTER (uart, THR, *(buffer++));
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1046 chars_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1047 chars_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1048 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1049 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1050
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1051 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1052 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1053 * Re-enable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1054 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1055
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1056 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1057 uart, IER, READ_UART_REGISTER (uart, IER) \| IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1058 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1059
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1060 return (chars_written);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1061 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1062
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1063
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1064 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1065 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1066 * UA_EncapsulateNChars
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1067 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1068 * Purpose : Writes N characters in the TX FIFO in encapsulating them with 2
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1069 * STX bytes (one at the beginning and one at the end).
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1070 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1071 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1072 * buffer : buffer address from which characters are
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1073 * written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1074 * chars_to_write: number of chars to write.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1075 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1076 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1077 * Returns : Number of chars written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1078 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1079 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1080 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1081 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1082
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1083 SYS_UWORD32
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1084 UA_EncapsulateNChars (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1085 char *buffer,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1086 SYS_UWORD32 chars_to_write)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1087 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1088 SYS_UWORD32 chars_written;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1089 SYS_UWORD32 chars_in_tx_fifo;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1090 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1091
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1092 chars_written = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1093 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1094
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1095 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1096 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1097 * Disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1098 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1099
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1100 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1101 uart, IER, READ_UART_REGISTER (uart, IER) & ~IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1102 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1103
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1104 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1105 * Copy the input buffer to the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1106 * Ulyssse Bug #44: TX FIFO full status bit (SSR[1]) is corrupted during
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1107 * one period of Bclock => Workaround S/W.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1108 * Write in TX FIFO only if FIFO is empty instead of writing in TX FIFO
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1109 * while FIFO is not full.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1110 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1111
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1112 if (READ_UART_REGISTER (uart, LSR) & THRE) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1113
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1114 chars_in_tx_fifo = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1115
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1116 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1117 * Check if the message has been already encapsulated.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1118 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1119
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1120 if (!uart->encapsulation_flag) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1121 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1122 * Write STX in the TX FIFO and set the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1123 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1124
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1125 WRITE_UART_REGISTER (uart, THR, STX);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1126 chars_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1127 uart->encapsulation_flag = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1128 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1129
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1130 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1131 * Keep one char margin in the TX FIFO for the last STX.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1132 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1133
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1134 while ((chars_written < chars_to_write) &&
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1135 (chars_in_tx_fifo < (FIFO_SIZE-1))) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1136
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1137 WRITE_UART_REGISTER (uart, THR, *(buffer++));
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1138 chars_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1139 chars_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1140 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1141
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1142 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1143 * Append STX byte at the end if the frame is complete.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1144 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1145
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1146 if (chars_written == chars_to_write) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1147
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1148 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1149 * Write STX in the TX FIFO and reset the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1150 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1151
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1152 WRITE_UART_REGISTER (uart, THR, STX);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1153 uart->encapsulation_flag = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1154 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1155 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1156
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1157 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1158 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1159 * Re-enable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1160 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1161
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1162 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1163 uart, IER, READ_UART_REGISTER (uart, IER) \| IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1164 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1165
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1166 return (chars_written);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1167 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1168
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1169
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1170 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1171 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1172 * UA_WriteNBytes
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1173 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1174 * Purpose : Writes N bytes in the TX FIFO in encapsulating with 2 STX bytes
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1175 * at the beginning and the end of the frame, and in making byte
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1176 * stuffing.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1177 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1178 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1179 * buffer : buffer address from which bytes are
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1180 * written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1181 * bytes_to_write: number of bytes to write.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1182 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1183 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1184 * Returns : Number of bytes written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1185 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1186 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1187 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1188 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1189
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1190 SYS_UWORD32
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1191 UA_WriteNBytes (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1192 SYS_UWORD8 *buffer,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1193 SYS_UWORD32 bytes_to_write)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1194 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1195 SYS_UWORD32 bytes_written;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1196 SYS_UWORD32 bytes_in_tx_fifo;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1197 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1198
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1199 bytes_written = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1200 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1201
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1202 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1203 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1204 * Disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1205 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1206
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1207 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1208 uart, IER, READ_UART_REGISTER (uart, IER) & ~IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1209 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1210
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1211 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1212 * Copy the input buffer to the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1213 * Ulyssse Bug #44: TX FIFO full status bit (SSR[1]) is corrupted during
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1214 * one period of Bclock => Workaround S/W.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1215 * Write in TX FIFO only if FIFO is empty instead of writing in TX FIFO
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1216 * while FIFO is not full.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1217 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1218
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1219 if (READ_UART_REGISTER (uart, LSR) & THRE) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1220
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1221 bytes_in_tx_fifo = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1222
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1223 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1224 * Check if the message has been already encapsulated.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1225 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1226
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1227 if (!uart->encapsulation_flag) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1228
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1229 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1230 * Write STX in the TX FIFO and set the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1231 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1232
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1233 WRITE_UART_REGISTER (uart, THR, STX);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1234 bytes_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1235 uart->encapsulation_flag = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1236 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1237
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1238 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1239 * Keep 2 chars margin in the FIFO, one for the stuffing (if necessary)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1240 * and one for the last STX.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1241 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1242
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1243 while ((bytes_written < bytes_to_write) &&
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1244 (bytes_in_tx_fifo < (FIFO_SIZE-2))) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1245
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1246 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1247 * Check for STX or DLE in order to perform the stuffing.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1248 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1249
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1250 if (((buffer) == STX) \|\| ((buffer) == DLE)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1251
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1252 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1253 * Write DLE in the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1254 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1255
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1256 WRITE_UART_REGISTER (uart, THR, DLE);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1257 bytes_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1258 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1259
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1260 WRITE_UART_REGISTER (uart, THR, *(buffer++));
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1261 bytes_written++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1262 bytes_in_tx_fifo++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1263 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1264
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1265 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1266 * Append STX byte at the end if the frame is complete.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1267 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1268
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1269 if (bytes_written == bytes_to_write) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1270
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1271 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1272 * Write STX in the TX FIFO and reset the flag.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1273 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1274
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1275 WRITE_UART_REGISTER (uart, THR, STX);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1276 uart->encapsulation_flag = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1277 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1278 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1279
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1280 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1281 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1282 * Re-enable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1283 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1284
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1285 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1286 uart, IER, READ_UART_REGISTER (uart, IER) \| IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1287 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1288
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1289 return (bytes_written);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1290 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1291
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1292
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1293 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1294 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1295 * UA_WriteChar
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1296 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1297 * Purpose : Writes a character in the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1298 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1299 * Arguments: In : uart: UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1300 * character
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1301 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1302 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1303 * Returns : none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1304 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1305 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1306 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1307 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1308
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1309 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1310 UA_WriteChar (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1311 char character)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1312 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1313 (void) UA_WriteNChars (uart_id, &character, 1);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1314 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1315
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1316 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1317 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1318 * UA_WriteString
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1319 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1320 * Purpose : Writes a null terminated string in the TX FIFO.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1321 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1322 * Arguments: In : uart_id: UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1323 * buffer : buffer address from which characters are written.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1324 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1325 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1326 * Returns : none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1327 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1328 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1329 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1330 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1331
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1332 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1333 UA_WriteString (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1334 char *buffer)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1335 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1336 (void) UA_WriteNChars (uart_id, buffer, strlen (buffer));
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1337 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1338
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1339 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1340 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1341 * UA_EnterSleep
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1342 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1343 * Purpose : Checks if UART is ready to enter Deep Sleep. If ready, enables
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1344 * wake-up interrupt.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1345 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1346 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1347 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1348 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1349 * Returns: 0 : Deep Sleep is not possible.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1350 * >= 1 : Deep Sleep is possible.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1351 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1352 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1353 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1354 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1355
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1356 SYS_BOOL
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1357 UA_EnterSleep (T_tr_UartId uart_id)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1358 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1359 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1360 SYS_BOOL deep_sleep;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1361 volatile SYS_UWORD8 status;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1362
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1363 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1364 deep_sleep = 0;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1365
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1366 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1367 * Check if RX & TX FIFOs are both empty
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1368 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1369
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1370 status = READ_UART_REGISTER (uart, LSR);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1371
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1372 if (!(status & DR) &&
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1373 (status & TEMT)) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1374
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1375 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1376 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1377 * Disable sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1378 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1379
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1380 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1381 uart, IER, READ_UART_REGISTER (uart, IER) & ~IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1382 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1383
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1384 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1385 * Mask RX interrupt.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1386 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1387
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1388 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1389 uart, IER, READ_UART_REGISTER (uart, IER) & ~ERBI);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1390
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1391 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1392 * Enable the wake-up interrupt.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1393 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1394
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1395 ENABLE_WAKEUP_INTERRUPT (uart);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1396
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1397 deep_sleep = 1;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1398 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1399
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1400 return (deep_sleep);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1401 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1402
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1403 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1404 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1405 * UA_WakeUp
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1406 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1407 * Purpose : Wakes up UART after Deep Sleep.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1408 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1409 * Arguments: In : uart_id : UART id.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1410 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1411 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1412 * Returns: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1413 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1414 * Warning: Parameters are not verified.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1415 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1416 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1417
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1418 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1419 UA_WakeUp (T_tr_UartId uart_id)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1420 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1421 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1422
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1423 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1424
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1425 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1426 * Disable the wake-up interrupt.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1427 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1428
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1429 DISABLE_WAKEUP_INTERRUPT (uart);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1430
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1431 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1432 * Unmask RX interrupts.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1433 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1434
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1435 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1436 uart, IER, READ_UART_REGISTER (uart, IER) \| ERBI);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1437
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1438 #if ((CHIPSET != 5) && (CHIPSET != 6))
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1439 /*
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1440 * Allow sleep mode.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1441 */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1442
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1443 WRITE_UART_REGISTER (
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1444 uart, IER, READ_UART_REGISTER (uart, IER) \| IER_SLEEP);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1445 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1446 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1447
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1448 /*******************************************************************************
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1449 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1450 * UA_InterruptHandler
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1451 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1452 * Purpose : Interrupt handler.
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1453 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1454 * Arguments: In : uart_id : origin of interrupt
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1455 * interrupt_status: source of interrupt
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1456 * Out: none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1457 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1458 * Returns : none
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1459 *
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1460 ******************************************************************************/
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1461
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1462 void
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1463 UA_InterruptHandler (T_tr_UartId uart_id,
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1464 SYS_UWORD8 interrupt_status)
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1465 {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1466 t_uart *uart;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1467
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1468 uart = &(uart_parameter[uart_id]);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1469
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1470 switch (interrupt_status) {
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1471
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1472 case RX_DATA:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1473
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1474 read_rx_fifo (uart);
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1475
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1476 break;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1477
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1478 default:
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1479
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1480 #ifdef UART_RX_BUFFER_DUMP
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1481 uart_rx_buffer_dump.wrong_interrupt_status++;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1482 #endif
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1483
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1484 /* No Processing */
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1485
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1486 break;
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1487 }
22c8199e08af started integrating TI's serial code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1488 }

FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/serial/uart.c @ 992:a7b0b426f9ca