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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> |
eb058b48 |
11 | #include "warm/warm.h" |
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12 | |
13 | static volatile unsigned short *memregs; |
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14 | static volatile unsigned int *memregl; |
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15 | int probably_caanoo; |
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16 | int memdev = -1; |
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17 | |
18 | #define FB_BUF_COUNT 4 |
19 | static unsigned int fb_paddr[FB_BUF_COUNT]; |
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20 | static int fb_buf_count = FB_BUF_COUNT; |
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21 | static int fb_work_buf; |
22 | static int fbdev = -1; |
23 | |
24 | static void *gp2x_screens[FB_BUF_COUNT]; |
25 | static void *g_screen_ptr; |
26 | |
27 | |
28 | static void vout_gp2x_flip(void) |
29 | { |
30 | memregl[0x406C>>2] = fb_paddr[fb_work_buf]; |
31 | memregl[0x4058>>2] |= 0x10; |
32 | |
33 | fb_work_buf++; |
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34 | if (fb_work_buf >= fb_buf_count) |
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35 | fb_work_buf = 0; |
36 | g_screen_ptr = gp2x_screens[fb_work_buf]; |
37 | } |
38 | |
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39 | static int vout_gp2x_init(int no_dblbuf) |
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40 | { |
41 | struct fb_fix_screeninfo fbfix; |
42 | int i, ret; |
43 | |
44 | memdev = open("/dev/mem", O_RDWR); |
45 | if (memdev == -1) { |
46 | perror("open(/dev/mem) failed"); |
47 | exit(1); |
48 | } |
49 | |
50 | memregs = mmap(0, 0x20000, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0xc0000000); |
51 | if (memregs == MAP_FAILED) { |
52 | perror("mmap(memregs) failed"); |
53 | exit(1); |
54 | } |
55 | memregl = (volatile void *)memregs; |
56 | |
57 | fbdev = open("/dev/fb0", O_RDWR); |
58 | if (fbdev < 0) { |
59 | perror("can't open fbdev"); |
60 | exit(1); |
61 | } |
62 | |
63 | ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); |
64 | if (ret == -1) { |
65 | perror("ioctl(fbdev) failed"); |
66 | exit(1); |
67 | } |
68 | |
69 | printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); |
70 | fb_paddr[0] = fbfix.smem_start; |
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71 | probably_caanoo = fb_paddr[0] >= 0x4000000; |
72 | printf("looking like Caanoo? %s.\n", probably_caanoo ? "yes" : "no"); |
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73 | |
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) |
77 | { |
78 | perror("mmap(gp2x_screens) failed"); |
79 | exit(1); |
80 | } |
81 | memset(gp2x_screens[0], 0, 320*240*2*FB_BUF_COUNT); |
82 | |
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83 | if (!no_dblbuf) { |
84 | warm_init(); |
85 | ret = warm_change_cb_range(WCB_B_BIT, 1, gp2x_screens[0], 320*240*2*FB_BUF_COUNT); |
86 | if (ret != 0) |
87 | fprintf(stderr, "could not make fb buferable.\n"); |
88 | } |
89 | |
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90 | // printf(" %p -> %08x\n", gp2x_screens[0], fb_paddr[0]); |
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91 | for (i = 1; i < FB_BUF_COUNT; i++) |
92 | { |
93 | fb_paddr[i] = fb_paddr[i-1] + 320*240*2; |
94 | gp2x_screens[i] = (char *)gp2x_screens[i-1] + 320*240*2; |
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95 | // printf(" %p -> %08x\n", gp2x_screens[i], fb_paddr[i]); |
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96 | } |
97 | fb_work_buf = 0; |
98 | g_screen_ptr = gp2x_screens[0]; |
99 | |
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100 | if (no_dblbuf) |
101 | fb_buf_count = 1; |
102 | |
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103 | return 0; |
104 | } |
105 | |
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106 | static void vout_gp2x_set_mode(int bpp, int rot) |
107 | { |
108 | int rot_cmd[2] = { 0, 0 }; |
109 | int code = 0, bytes = 2; |
110 | unsigned int r; |
111 | int ret; |
112 | |
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113 | if (probably_caanoo) |
114 | rot = 0; |
115 | |
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116 | rot_cmd[0] = rot ? 6 : 5; |
117 | ret = ioctl(fbdev, _IOW('D', 90, int[2]), rot_cmd); |
118 | if (ret < 0) |
119 | perror("rot ioctl failed"); |
120 | |
121 | memregl[0x4004>>2] = rot ? 0x013f00ef : 0x00ef013f; |
122 | memregl[0x4000>>2] |= 1 << 3; |
123 | |
124 | switch (bpp) |
125 | { |
126 | case 8: |
127 | code = 0x443a; |
128 | bytes = 1; |
129 | break; |
130 | |
131 | case 15: |
132 | case 16: |
133 | code = 0x4432; |
134 | bytes = 2; |
135 | break; |
136 | |
137 | default: |
138 | fprintf(stderr, "unhandled bpp request: %d\n", abs(bpp)); |
139 | return; |
140 | } |
141 | |
142 | memregl[0x405c>>2] = bytes; |
143 | memregl[0x4060>>2] = bytes * (rot ? 240 : 320); |
144 | |
145 | r = memregl[0x4058>>2]; |
146 | r = (r & 0xffff) | (code << 16) | 0x10; |
147 | memregl[0x4058>>2] = r; |
148 | } |
149 | |
7000b522 |
150 | static void vout_gp2x_set_palette16(unsigned short *pal, int len) |
151 | { |
152 | int i; |
153 | for (i = 0; i < len; i++) |
154 | memregl[0x4070>>2] = (i << 24) | pal[i]; |
155 | } |
156 | |
157 | static void vout_gp2x_set_palette32(unsigned int *pal, int len) |
6ca08393 |
158 | { |
159 | /* pollux palette is 16bpp only.. */ |
160 | int i; |
161 | for (i = 0; i < len; i++) |
162 | { |
163 | int c = pal[i]; |
164 | c = ((c >> 8) & 0xf800) | ((c >> 5) & 0x07c0) | ((c >> 3) & 0x001f); |
165 | memregl[0x4070>>2] = (i << 24) | c; |
166 | } |
167 | } |
168 | |
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169 | void vout_gp2x_finish(void) |
170 | { |
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171 | if (memregl != NULL) { |
172 | if (memregl[0x4058>>2] & 0x10) |
173 | usleep(100000); |
174 | if (memregl[0x4058>>2] & 0x10) |
175 | printf("MLCCONTROL1 dirty? %08x %08x\n", |
176 | memregl[0x406C>>2], memregl[0x4058>>2]); |
177 | |
178 | memregl[0x406C>>2] = fb_paddr[0]; |
179 | memregl[0x4058>>2] |= 0x10; |
180 | munmap((void *)memregs, 0x20000); |
181 | memregs = NULL; |
182 | memregl = NULL; |
183 | } |
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184 | |
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185 | close(fbdev); |
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186 | close(memdev); |
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187 | |
188 | warm_finish(); |
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189 | } |
190 | |