FreeCalypso > hg > freecalypso-tools

annotate target-utils/lunadrv/luna.h @ 965:2969032bdfac

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fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Sep 2023 07:33:51 +0000
parents db9a8e88e63f
children
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db9a8e88e63f target-utils lunadrv program written, compiles
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1 /*
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2 * This header file provides definitions for the Luna LCD hardware interface.
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3 */
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4
db9a8e88e63f target-utils lunadrv program written, compiles
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5 /* reset control */
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6 #define CNTL_RST_REG (*(volatile u16 *)0xFFFFFD04)
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7 #define EXT_RESET 0x0004
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8
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9 /* the LCD is connected to Calypso nCS3, with A1 line as register select */
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11 #define LCD_IR (*(volatile u16 *)0x02000000)
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12 #define LCD_DR (*(volatile u16 *)0x02000002)
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14 /* macro for writing first IR, then DR */
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16 #define LCD_REG_WR(reg, data) {LCD_IR = (reg); LCD_DR = (data);}
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18 /* some init operations call for controlled delays */
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20 #define DELAY_1MS 13000