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- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <string.h>
- #include <unistd.h>
- #include <sys/mman.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <linux/fb.h>
- #include <fcntl.h>
- #include <errno.h>
- #include "../gp2x/gp2x.h"
- #include "../linux/usbjoy.h"
- #include "../linux/sndout_oss.h"
- #include "../common/arm_linux.h"
- static volatile unsigned int *memregs = MAP_FAILED;
- //static
- int memdev = 0;
- static int fbdev = -1;
- #define SCREEN_MAP_SIZE (800*480*2)
- static void *screen = MAP_FAILED;
- void *gp2x_screen;
- /* video stuff */
- void gp2x_video_flip(void)
- {
- }
- /* doulblebuffered flip */
- void gp2x_video_flip2(void)
- {
- }
- void gp2x_video_changemode2(int bpp)
- {
- }
- void gp2x_video_changemode(int bpp)
- {
- }
- void gp2x_video_setpalette(int *pal, int len)
- {
- }
- void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)
- {
- }
- void gp2x_video_wait_vsync(void)
- {
- }
- void gp2x_video_flush_cache(void)
- {
- // cache_flush_d_inval_i(gp2x_screen, (char *)gp2x_screen + 320*240*2, 0);
- }
- void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
- {
- }
- void gp2x_memcpy_all_buffers(void *data, int offset, int len)
- {
- }
- void gp2x_memset_all_buffers(int offset, int byte, int len)
- {
- memset((char *)gp2x_screen + offset, byte, len);
- }
- void gp2x_pd_clone_buffer2(void)
- {
- memset(gp2x_screen, 0, 800*480*2);
- }
- unsigned long gp2x_joystick_read(int allow_usb_joy)
- {
- unsigned long value = 0;
- int i;
- if (allow_usb_joy && num_of_joys > 0) {
- // check the usb joy as well..
- usbjoy_update();
- for (i = 0; i < num_of_joys; i++)
- value |= usbjoy_check(i);
- }
- return value;
- }
- // FIXME
- #if 0
- static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
- typedef struct ucb1x00_ts_event
- {
- unsigned short pressure;
- unsigned short x;
- unsigned short y;
- unsigned short pad;
- struct timeval stamp;
- } UCB1X00_TS_EVENT;
- int gp2x_touchpad_read(int *x, int *y)
- {
- UCB1X00_TS_EVENT event;
- static int zero_seen = 0;
- int retval;
- if (touchdev < 0) return -1;
- retval = read(touchdev, &event, sizeof(event));
- if (retval <= 0) {
- printf("touch read failed %i %i\n", retval, errno);
- return -1;
- }
- // this is to ignore the messed-up 4.1.x driver
- if (event.pressure == 0) zero_seen = 1;
- if (x) *x = (event.x * touchcal[0] + touchcal[2]) >> 16;
- if (y) *y = (event.y * touchcal[4] + touchcal[5]) >> 16;
- // printf("read %i %i %i\n", event.pressure, *x, *y);
- return zero_seen ? event.pressure : 0;
- }
- #else
- int gp2x_touchpad_read(int *x, int *y) { return -1; }
- #endif
- /* common */
- void gp2x_init(void)
- {
- printf("entering init()\n"); fflush(stdout);
- memdev = open("/dev/mem", O_RDWR);
- if (memdev == -1)
- {
- perror("open(\"/dev/mem\")");
- exit(1);
- }
- /*
- memregs = mmap(0, 0x01000000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x48000000);
- if (memregs == MAP_FAILED)
- {
- printf("mmap(memregs) failed with %i\n", errno);
- exit(1);
- }
- */
- fbdev = open("/dev/fb0", O_RDWR);
- if (fbdev == -1)
- {
- perror("open(\"/dev/fb0\")");
- exit(1);
- }
- screen = mmap(0, SCREEN_MAP_SIZE, PROT_WRITE|PROT_READ, MAP_SHARED, fbdev, 0);
- if (screen == MAP_FAILED)
- {
- perror("mmap(fbptr)");
- exit(1);
- }
- printf("fbptr %p\n", screen);
- gp2x_screen = screen;
- // snd
- sndout_oss_init();
- /* init usb joys -GnoStiC */
- usbjoy_init();
- printf("exitting init()\n"); fflush(stdout);
- }
- void gp2x_deinit(void)
- {
- if (screen != MAP_FAILED)
- munmap(screen, SCREEN_MAP_SIZE);
- if (memregs != MAP_FAILED)
- munmap((void *)memregs, 0x10000);
- close(memdev);
- if (fbdev >= 0) close(fbdev);
- sndout_oss_exit();
- usbjoy_deinit();
- printf("all done");
- }
- /* lprintf */
- void lprintf(const char *fmt, ...)
- {
- va_list vl;
- va_start(vl, fmt);
- vprintf(fmt, vl);
- va_end(vl);
- }
- /* fake GP2X */
- int crashed_940 = 0;
- void set_gamma(int g100, int A_SNs_curve) {}
- void set_FCLK(unsigned MHZ) {}
- void set_LCD_custom_rate(int rate) {}
- void unset_LCD_custom_rate(void) {}
- void Pause940(int yes) {}
- void Reset940(int yes, int bank) {}
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