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

annotate gsm-fw/serial/uart.c @ 700:2913c4fdd34a

top level README: describe the project at a higher level

author	Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date	Thu, 02 Oct 2014 00:06:50 +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 @ 700:2913c4fdd34a