FreeCalypso > hg > freecalypso-tools
view target-utils/lunadrv/luna.h @ 965:2969032bdfac
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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/* * This header file provides definitions for the Luna LCD hardware interface. */ /* reset control */ #define CNTL_RST_REG (*(volatile u16 *)0xFFFFFD04) #define EXT_RESET 0x0004 /* the LCD is connected to Calypso nCS3, with A1 line as register select */ #define LCD_IR (*(volatile u16 *)0x02000000) #define LCD_DR (*(volatile u16 *)0x02000002) /* macro for writing first IR, then DR */ #define LCD_REG_WR(reg, data) {LCD_IR = (reg); LCD_DR = (data);} /* some init operations call for controlled delays */ #define DELAY_1MS 13000