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Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/arm/gba/include/gba.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/gba/include/gba.h b/c/src/lib/libbsp/arm/gba/include/gba.h new file mode 100644 index 0000000000..9fb14b033f --- /dev/null +++ b/c/src/lib/libbsp/arm/gba/include/gba.h @@ -0,0 +1,106 @@ +/** + * @file gba.h + * + * This include file contains definitions related to the ARM BSP. + */ +/* + * RTEMS GBA BSP + * + * Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net> + * + * The license and distribution terms for this file may be + * found in found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _GBA_H +#define _GBA_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <gba_registers.h> + +/*---------------------------------------------------------------------------* + * Clock * + *---------------------------------------------------------------------------*/ +#define __ClockFrequency 16780000L /**< ClockFreguency in Hz */ +#define __TimPreScaler 1024L /**< Prescaler value 1,64,256,1024 */ + +/*---------------------------------------------------------------------------* + * Activation defines * + *---------------------------------------------------------------------------*/ +/** + * Multiboot/Cart boot Selection. + * + * If the variable __gba_multiboot is defined + * (probably should be in your main project file) then code + * is generated which will run as a multiboot image (code starts + * at 0x02000000) or as a normal flash cart / emulator image. + * (i.e. start.S copies code from ROM to EWRAM if started in cart + * or emulator.) If this variable is not defined then code is + * generated for flash cart / emulator only operation (code starts + * at 0x08000000). + */ +#define MULTIBOOT volatile const unsigned short __gba_multiboot; + +/** + * IWRAM/EWRAM data Selection. + * + * If the variable __gba_iwram_data is defined + * (probably should be in your main project file) then code + * is generated which will allocate data section in IWRAM + * (data starts at 0x03000080). + * If this variable is not defined then data sections is + * allocated in EWRAM (data starts at 0x02000000). + */ +#define IWRAMDATA volatile const unsigned short __gba_iwram_data; + +/** + * IWRAM/EWRAM bss Selection. + * + * If the variable __gba_iwram_bss is defined + * (probably should be in your main project file) then code + * is generated which will allocate bss section in IWRAM + * (data starts at 0x03000080). + * If this variable is not defined then bss sections is + * allocated in EWRAM (data starts at 0x02000000). + */ +#define IWRAMBSS volatile const unsigned short __gba_iwram_bss; + + +/*---------------------------------------------------------------------------* + * Attributes * + *---------------------------------------------------------------------------*/ +#define CODE_IN_ROM __attribute__ ((section (".text"), long_call)) +#define CODE_IN_IWRAM __attribute__ ((section (".iwram"), long_call)) +#define IN_IWRAM __attribute__ ((section (".iwram"))) +#define IN_EWRAM __attribute__ ((section (".ewram"))) + +/*---------------------------------------------------------------------------* + * Console Keypad * + *---------------------------------------------------------------------------*/ +#define OK_KEY (0==0) /**< TRUE */ +#define NO_KEY (0==1) /**< FALSE */ +#define GBA_KEYS_PRESSED(keys) (( ((~GBA_REG_P1) & (keys)) == (keys)) ? (OK_KEY) : (NO_KEY)) +#define GBA_ANY_KEY(keys) (( ((~GBA_REG_P1) & (keys)) != 0) ? (OK_KEY) : (NO_KEY)) +#define GBA_KEY() ((~GBA_REG_P1)&GBA_KEY_ALL) + +/*---------------------------------------------------------------------------* + * Console Screen * + *---------------------------------------------------------------------------*/ +#define GBA_LCD_WIDTH 240 +#define GBA_LCD_HEIGHT 160 +#define GBA_MODE5_WIDTH 160 +#define GBA_MODE5_HEIGHT 128 +#define GBA_LCD_ASPECT ((float)(GBA_LCD_WIDTH / GBA_LCD_HEIGHT)) + + +#ifdef __cplusplus +} +#endif + +#endif |