| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <sys/types.h> |
| 5 | #include <sys/stat.h> |
| 6 | #include <fcntl.h> |
| 7 | #include <sys/ioctl.h> |
| 8 | #include <sys/mman.h> |
| 9 | #include <unistd.h> |
| 10 | #include <linux/fb.h> |
| 11 | #include "warm.h" |
| 12 | |
| 13 | static volatile unsigned short *memregs; |
| 14 | static volatile unsigned int *memregl; |
| 15 | int memdev = -1; |
| 16 | |
| 17 | #define FB_BUF_COUNT 4 |
| 18 | static unsigned int fb_paddr[FB_BUF_COUNT]; |
| 19 | static int fb_buf_count = FB_BUF_COUNT; |
| 20 | static int fb_work_buf; |
| 21 | static int fbdev = -1; |
| 22 | |
| 23 | static void *gp2x_screens[FB_BUF_COUNT]; |
| 24 | static void *g_screen_ptr; |
| 25 | |
| 26 | |
| 27 | static void vout_gp2x_flip(void) |
| 28 | { |
| 29 | memregl[0x406C>>2] = fb_paddr[fb_work_buf]; |
| 30 | memregl[0x4058>>2] |= 0x10; |
| 31 | |
| 32 | fb_work_buf++; |
| 33 | if (fb_work_buf >= fb_buf_count) |
| 34 | fb_work_buf = 0; |
| 35 | g_screen_ptr = gp2x_screens[fb_work_buf]; |
| 36 | } |
| 37 | |
| 38 | static int vout_gp2x_init(int no_dblbuf) |
| 39 | { |
| 40 | struct fb_fix_screeninfo fbfix; |
| 41 | int i, ret; |
| 42 | |
| 43 | memdev = open("/dev/mem", O_RDWR); |
| 44 | if (memdev == -1) { |
| 45 | perror("open(/dev/mem) failed"); |
| 46 | exit(1); |
| 47 | } |
| 48 | |
| 49 | memregs = mmap(0, 0x20000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000); |
| 50 | if (memregs == MAP_FAILED) { |
| 51 | perror("mmap(memregs) failed"); |
| 52 | exit(1); |
| 53 | } |
| 54 | memregl = (volatile void *)memregs; |
| 55 | |
| 56 | fbdev = open("/dev/fb0", O_RDWR); |
| 57 | if (fbdev < 0) { |
| 58 | perror("can't open fbdev"); |
| 59 | exit(1); |
| 60 | } |
| 61 | |
| 62 | ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); |
| 63 | if (ret == -1) { |
| 64 | perror("ioctl(fbdev) failed"); |
| 65 | exit(1); |
| 66 | } |
| 67 | |
| 68 | printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); |
| 69 | fb_paddr[0] = fbfix.smem_start; |
| 70 | |
| 71 | gp2x_screens[0] = mmap(0, 320*240*2*FB_BUF_COUNT, PROT_READ|PROT_WRITE, |
| 72 | MAP_SHARED, memdev, fb_paddr[0]); |
| 73 | if (gp2x_screens[0] == MAP_FAILED) |
| 74 | { |
| 75 | perror("mmap(gp2x_screens) failed"); |
| 76 | exit(1); |
| 77 | } |
| 78 | memset(gp2x_screens[0], 0, 320*240*2*FB_BUF_COUNT); |
| 79 | |
| 80 | if (!no_dblbuf) { |
| 81 | warm_init(); |
| 82 | ret = warm_change_cb_range(WCB_B_BIT, 1, gp2x_screens[0], 320*240*2*FB_BUF_COUNT); |
| 83 | if (ret != 0) |
| 84 | fprintf(stderr, "could not make fb buferable.\n"); |
| 85 | } |
| 86 | |
| 87 | // printf(" %p -> %08x\n", gp2x_screens[0], fb_paddr[0]); |
| 88 | for (i = 1; i < FB_BUF_COUNT; i++) |
| 89 | { |
| 90 | fb_paddr[i] = fb_paddr[i-1] + 320*240*2; |
| 91 | gp2x_screens[i] = (char *)gp2x_screens[i-1] + 320*240*2; |
| 92 | // printf(" %p -> %08x\n", gp2x_screens[i], fb_paddr[i]); |
| 93 | } |
| 94 | fb_work_buf = 0; |
| 95 | g_screen_ptr = gp2x_screens[0]; |
| 96 | |
| 97 | if (no_dblbuf) |
| 98 | fb_buf_count = 1; |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static void vout_gp2x_set_mode(int bpp, int rot) |
| 104 | { |
| 105 | int rot_cmd[2] = { 0, 0 }; |
| 106 | int code = 0, bytes = 2; |
| 107 | unsigned int r; |
| 108 | int ret; |
| 109 | |
| 110 | rot_cmd[0] = rot ? 6 : 5; |
| 111 | ret = ioctl(fbdev, _IOW('D', 90, int[2]), rot_cmd); |
| 112 | if (ret < 0) |
| 113 | perror("rot ioctl failed"); |
| 114 | |
| 115 | memregl[0x4004>>2] = rot ? 0x013f00ef : 0x00ef013f; |
| 116 | memregl[0x4000>>2] |= 1 << 3; |
| 117 | |
| 118 | switch (bpp) |
| 119 | { |
| 120 | case 8: |
| 121 | code = 0x443a; |
| 122 | bytes = 1; |
| 123 | break; |
| 124 | |
| 125 | case 15: |
| 126 | case 16: |
| 127 | code = 0x4432; |
| 128 | bytes = 2; |
| 129 | break; |
| 130 | |
| 131 | default: |
| 132 | fprintf(stderr, "unhandled bpp request: %d\n", abs(bpp)); |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | memregl[0x405c>>2] = bytes; |
| 137 | memregl[0x4060>>2] = bytes * (rot ? 240 : 320); |
| 138 | |
| 139 | r = memregl[0x4058>>2]; |
| 140 | r = (r & 0xffff) | (code << 16) | 0x10; |
| 141 | memregl[0x4058>>2] = r; |
| 142 | } |
| 143 | |
| 144 | static void vout_gp2x_set_palette16(unsigned short *pal, int len) |
| 145 | { |
| 146 | int i; |
| 147 | for (i = 0; i < len; i++) |
| 148 | memregl[0x4070>>2] = (i << 24) | pal[i]; |
| 149 | } |
| 150 | |
| 151 | static void vout_gp2x_set_palette32(unsigned int *pal, int len) |
| 152 | { |
| 153 | /* pollux palette is 16bpp only.. */ |
| 154 | int i; |
| 155 | for (i = 0; i < len; i++) |
| 156 | { |
| 157 | int c = pal[i]; |
| 158 | c = ((c >> 8) & 0xf800) | ((c >> 5) & 0x07c0) | ((c >> 3) & 0x001f); |
| 159 | memregl[0x4070>>2] = (i << 24) | c; |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | void vout_gp2x_finish(void) |
| 164 | { |
| 165 | if (memregl != NULL) { |
| 166 | if (memregl[0x4058>>2] & 0x10) |
| 167 | usleep(100000); |
| 168 | if (memregl[0x4058>>2] & 0x10) |
| 169 | printf("MLCCONTROL1 dirty? %08x %08x\n", |
| 170 | memregl[0x406C>>2], memregl[0x4058>>2]); |
| 171 | |
| 172 | memregl[0x406C>>2] = fb_paddr[0]; |
| 173 | memregl[0x4058>>2] |= 0x10; |
| 174 | munmap((void *)memregs, 0x20000); |
| 175 | memregs = NULL; |
| 176 | memregl = NULL; |
| 177 | } |
| 178 | |
| 179 | close(fbdev); |
| 180 | close(memdev); |
| 181 | |
| 182 | warm_finish(); |
| 183 | } |
| 184 | |