11 #include "warm/warm.h"
13 static volatile unsigned short *memregs;
14 static volatile unsigned int *memregl;
18 #define FB_BUF_COUNT 4
19 static unsigned int fb_paddr[FB_BUF_COUNT];
20 static int fb_buf_count = FB_BUF_COUNT;
21 static int fb_work_buf;
22 static int fbdev = -1;
24 static void *gp2x_screens[FB_BUF_COUNT];
25 static void *g_screen_ptr;
28 static void vout_gp2x_flip(void)
30 memregl[0x406C>>2] = fb_paddr[fb_work_buf];
31 memregl[0x4058>>2] |= 0x10;
34 if (fb_work_buf >= fb_buf_count)
36 g_screen_ptr = gp2x_screens[fb_work_buf];
39 static int vout_gp2x_init(int no_dblbuf)
41 struct fb_fix_screeninfo fbfix;
44 memdev = open("/dev/mem", O_RDWR);
46 perror("open(/dev/mem) failed");
50 memregs = mmap(0, 0x20000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000);
51 if (memregs == MAP_FAILED) {
52 perror("mmap(memregs) failed");
55 memregl = (volatile void *)memregs;
57 fbdev = open("/dev/fb0", O_RDWR);
59 perror("can't open fbdev");
63 ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix);
65 perror("ioctl(fbdev) failed");
69 printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start);
70 fb_paddr[0] = fbfix.smem_start;
71 probably_caanoo = fb_paddr[0] >= 0x4000000;
72 printf("looking like Caanoo? %s.\n", probably_caanoo ? "yes" : "no");
74 gp2x_screens[0] = mmap(0, 320*240*2*FB_BUF_COUNT, PROT_READ|PROT_WRITE,
75 MAP_SHARED, memdev, fb_paddr[0]);
76 if (gp2x_screens[0] == MAP_FAILED)
78 perror("mmap(gp2x_screens) failed");
81 memset(gp2x_screens[0], 0, 320*240*2*FB_BUF_COUNT);
85 ret = warm_change_cb_range(WCB_B_BIT, 1, gp2x_screens[0], 320*240*2*FB_BUF_COUNT);
87 fprintf(stderr, "could not make fb buferable.\n");
90 // printf(" %p -> %08x\n", gp2x_screens[0], fb_paddr[0]);
91 for (i = 1; i < FB_BUF_COUNT; i++)
93 fb_paddr[i] = fb_paddr[i-1] + 320*240*2;
94 gp2x_screens[i] = (char *)gp2x_screens[i-1] + 320*240*2;
95 // printf(" %p -> %08x\n", gp2x_screens[i], fb_paddr[i]);
98 g_screen_ptr = gp2x_screens[0];
106 static void vout_gp2x_set_mode(int bpp, int rot)
108 int rot_cmd[2] = { 0, 0 };
109 int code = 0, bytes = 2;
116 rot_cmd[0] = rot ? 6 : 5;
117 ret = ioctl(fbdev, _IOW('D', 90, int[2]), rot_cmd);
119 perror("rot ioctl failed");
121 memregl[0x4004>>2] = rot ? 0x013f00ef : 0x00ef013f;
122 memregl[0x4000>>2] |= 1 << 3;
138 fprintf(stderr, "unhandled bpp request: %d\n", abs(bpp));
142 memregl[0x405c>>2] = bytes;
143 memregl[0x4060>>2] = bytes * (rot ? 240 : 320);
145 r = memregl[0x4058>>2];
146 r = (r & 0xffff) | (code << 16) | 0x10;
147 memregl[0x4058>>2] = r;
150 static void vout_gp2x_set_palette16(unsigned short *pal, int len)
153 for (i = 0; i < len; i++)
154 memregl[0x4070>>2] = (i << 24) | pal[i];
157 static void vout_gp2x_set_palette32(unsigned int *pal, int len)
159 /* pollux palette is 16bpp only.. */
161 for (i = 0; i < len; i++)
164 c = ((c >> 8) & 0xf800) | ((c >> 5) & 0x07c0) | ((c >> 3) & 0x001f);
165 memregl[0x4070>>2] = (i << 24) | c;
169 void vout_gp2x_finish(void)
171 if (memregl != NULL) {
172 if (memregl[0x4058>>2] & 0x10)
174 if (memregl[0x4058>>2] & 0x10)
175 printf("MLCCONTROL1 dirty? %08x %08x\n",
176 memregl[0x406C>>2], memregl[0x4058>>2]);
178 memregl[0x406C>>2] = fb_paddr[0];
179 memregl[0x4058>>2] |= 0x10;
180 munmap((void *)memregs, 0x20000);