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https://github.com/RaySollium99/libpicofe.git
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gp2x+wiz binary support, wiz code wip
git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@705 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
fa5e045bdc
commit
fa8d133192
17 changed files with 899 additions and 88 deletions
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@ -1,9 +1,249 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <linux/fb.h>
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#include "soc.h"
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#include "plat_gp2x.h"
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#include "../common/emu.h"
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#include "../common/arm_utils.h"
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#include "pollux_set.h"
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static volatile unsigned short *memregs;
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static volatile unsigned long *memregl;
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static int memdev = -1;
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extern void *gp2x_screens[4];
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#define fb_buf_count 4
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static unsigned int fb_paddr[fb_buf_count];
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static int fb_work_buf;
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static int fbdev = -1;
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/* video stuff */
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static void pollux_video_flip(int buf_count)
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{
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memregl[0x406C>>2] = fb_paddr[fb_work_buf];
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memregl[0x4058>>2] |= 0x10;
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fb_work_buf++;
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if (fb_work_buf >= buf_count)
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fb_work_buf = 0;
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g_screen_ptr = gp2x_screens[fb_work_buf];
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}
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static void gp2x_video_flip_(void)
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{
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pollux_video_flip(fb_buf_count);
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}
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/* doulblebuffered flip */
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static void gp2x_video_flip2_(void)
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{
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pollux_video_flip(2);
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}
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static void gp2x_video_changemode_ll_(int bpp)
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{
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int code = 0, bytes = 2;
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unsigned int r;
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switch (bpp)
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{
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case 8:
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code = 0x443a;
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bytes = 1;
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break;
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case 15:
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case 16:
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code = 0x4432;
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bytes = 2;
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break;
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default:
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printf("unhandled bpp request: %d\n", bpp);
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return;
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}
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memregl[0x405c>>2] = bytes;
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memregl[0x4060>>2] = bytes * 320;
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r = memregl[0x4058>>2];
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r = (r & 0xffff) | (code << 16) | 0x10;
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memregl[0x4058>>2] = r;
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}
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static void gp2x_video_setpalette_(int *pal, int len)
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{
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/* pollux palette is 16bpp only.. */
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int i;
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for (i = 0; i < len; i++)
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{
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int c = pal[i];
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c = ((c >> 8) & 0xf800) | ((c >> 5) & 0x07c0) | ((c >> 3) & 0x001f);
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memregl[0x4070>>2] = (i << 24) | c;
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}
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}
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static void gp2x_video_RGB_setscaling_(int ln_offs, int W, int H)
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{
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/* maybe a job for 3d hardware? */
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}
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static void gp2x_video_wait_vsync_(void)
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{
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while (!(memregl[0x308c>>2] & (1 << 10)));
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spend_cycles(128);
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memregl[0x308c>>2] |= 1 << 10;
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}
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/* CPU clock */
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static void gp2x_set_cpuclk_(unsigned int mhz)
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{
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char buff[24];
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snprintf(buff, sizeof(buff), "cpuclk=%u", mhz);
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pollux_set(memregs, buff);
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}
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/* misc */
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static void pollux_set_fromenv(const char *env_var)
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{
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const char *set_string;
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set_string = getenv(env_var);
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if (set_string)
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pollux_set(memregs, set_string);
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else
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printf("env var %s not defined.\n", env_var);
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}
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/* RAM timings */
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static unsigned short memtimex[2];
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static void set_ram_timings_(void)
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{
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pollux_set_fromenv("POLLUX_RAM_TIMINGS");
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}
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static void unset_ram_timings_(void)
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{
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int i;
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memregs[0x14802>>1] = memtimex[0];
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memregs[0x14804>>1] = memtimex[1] | 0x8000;
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for (i = 0; i < 0x100000; i++)
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if (!(memregs[0x14804>>1] & 0x8000))
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break;
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printf("RAM timings reset to startup values.\n");
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}
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/* LCD refresh */
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static void set_lcd_custom_rate_(int is_pal)
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{
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char buff[32];
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snprintf(buff, sizeof(buff), "POLLUX_LCD_TIMINGS_%s", is_pal ? "PAL" : "NTSC");
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pollux_set_fromenv(buff);
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}
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static void unset_lcd_custom_rate_(void)
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{
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}
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static void set_lcd_gamma_(int g100, int A_SNs_curve)
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{
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/* hm, the LCD possibly can do it (but not POLLUX) */
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}
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void pollux_init(void)
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{
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struct fb_fix_screeninfo fbfix;
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int i, ret;
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memdev = open("/dev/mem", O_RDWR);
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if (memdev == -1) {
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perror("open(/dev/mem) failed");
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exit(1);
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}
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memregs = mmap(0, 0x20000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);
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if (memregs == MAP_FAILED) {
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perror("mmap(memregs) failed");
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exit(1);
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}
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memregl = (volatile void *)memregs;
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fbdev = open("/dev/fb0", O_RDWR);
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if (fbdev < 0) {
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perror("can't open fbdev");
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exit(1);
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}
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ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);
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if (ret == -1) {
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perror("ioctl(fbdev) failed");
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exit(1);
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}
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printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start);
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fb_paddr[0] = fbfix.smem_start;
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gp2x_screens[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE,
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MAP_SHARED, memdev, fb_paddr[0]);
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if (gp2x_screens[0] == MAP_FAILED)
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{
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perror("mmap(gp2x_screens) failed");
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exit(1);
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}
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memset(gp2x_screens[0], 0, 320*240*2*fb_buf_count);
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printf(" %p -> %08x\n", gp2x_screens[0], fb_paddr[0]);
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for (i = 1; i < fb_buf_count; i++)
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{
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fb_paddr[i] = fb_paddr[i-1] + 320*240*2;
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gp2x_screens[i] = (char *)gp2x_screens[i-1] + 320*240*2;
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printf(" %p -> %08x\n", gp2x_screens[i], fb_paddr[i]);
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}
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fb_work_buf = 0;
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g_screen_ptr = gp2x_screens[0];
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memtimex[0] = memregs[0x14802>>1];
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memtimex[1] = memregs[0x14804>>1];
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gp2x_video_flip = gp2x_video_flip_;
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gp2x_video_flip2 = gp2x_video_flip2_;
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gp2x_video_changemode_ll = gp2x_video_changemode_ll_;
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gp2x_video_setpalette = gp2x_video_setpalette_;
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gp2x_video_RGB_setscaling = gp2x_video_RGB_setscaling_;
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gp2x_video_wait_vsync = gp2x_video_wait_vsync_;
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gp2x_set_cpuclk = gp2x_set_cpuclk_;
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set_lcd_custom_rate = set_lcd_custom_rate_;
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unset_lcd_custom_rate = unset_lcd_custom_rate_;
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set_lcd_gamma = set_lcd_gamma_;
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set_ram_timings = set_ram_timings_;
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unset_ram_timings = unset_ram_timings_;
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}
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void pollux_finish(void)
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{
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/* switch to default fb mem, turn portrait off */
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memregl[0x406C>>2] = fb_paddr[0];
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memregl[0x4058>>2] |= 0x10;
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// wiz_lcd_set_portrait(0);
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close(fbdev);
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munmap((void *)memregs, 0x20000);
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close(memdev);
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}
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