1 | /*-*- linux-c -*- |
2 | * linux/drivers/video/i810_dvt.c -- Intel 810 Discrete Video Timings (Intel) |
3 | * |
4 | * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> |
5 | * All Rights Reserved |
6 | * |
7 | * |
8 | * This file is subject to the terms and conditions of the GNU General Public |
9 | * License. See the file COPYING in the main directory of this archive for |
10 | * more details. |
11 | */ |
12 | |
13 | #include <linux/kernel.h> |
14 | |
15 | #include "i810_regs.h" |
16 | #include "i810.h" |
17 | #include "i810_main.h" |
18 | |
19 | struct mode_registers std_modes[] = { |
20 | /* 640x480 @ 60Hz */ |
21 | { 25000, 0x0013, 0x0003, 0x40, 0x5F, 0x4F, 0x50, 0x82, 0x51, 0x9D, |
22 | 0x0B, 0x10, 0x40, 0xE9, 0x0B, 0xDF, 0x50, 0xE7, 0x04, 0x02, |
23 | 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22006000, |
24 | 0x22002000, 0x22004000, 0x22006000, 0xC0 }, |
25 | |
26 | /* 640x480 @ 70Hz */ |
27 | { 28000, 0x0053, 0x0010, 0x40, 0x61, 0x4F, 0x4F, 0x85, 0x52, 0x9A, |
28 | 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01, |
29 | 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22005000, |
30 | 0x22002000, 0x22004000, 0x22005000, 0xC0 }, |
31 | |
32 | /* 640x480 @ 72Hz */ |
33 | { 31000, 0x0013, 0x0002, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x52, 0x97, |
34 | 0x06, 0x0F, 0x40, 0xE8, 0x0B, 0xDF, 0x50, 0xDF, 0x07, 0x02, |
35 | 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000, |
36 | 0x22003000, 0x22005000, 0x22007000, 0xC0 }, |
37 | |
38 | /* 640x480 @ 75Hz */ |
39 | { 31000, 0x0013, 0x0002, 0x40, 0x64, 0x4F, 0x4F, 0x88, 0x51, 0x99, |
40 | 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01, |
41 | 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000, |
42 | 0x22003000, 0x22005000, 0x22007000, 0xC0 }, |
43 | |
44 | /* 640x480 @ 85Hz */ |
45 | { 36000, 0x0010, 0x0001, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x56, 0x9D, |
46 | 0xFB, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xFC, 0x01, |
47 | 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000, |
48 | 0x22003000, 0x22005000, 0x22107000, 0xC0 }, |
49 | |
50 | /* 800x600 @ 56Hz */ |
51 | { 36000, 0x0010, 0x0001, 0x40, 0x7B, 0x63, 0x63, 0x9F, 0x66, 0x8F, |
52 | 0x6F, 0x10, 0x40, 0x58, 0x0A, 0x57, 0xC8, 0x57, 0x70, 0x02, |
53 | 0x02, 0x02, 0x02, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000, |
54 | 0x22003000, 0x22005000, 0x22107000, 0x00 }, |
55 | |
56 | /* 800x600 @ 60Hz */ |
57 | { 40000, 0x0008, 0x0001, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x68, 0x18, |
58 | 0x72, 0x10, 0x40, 0x58, 0x0C, 0x57, 0xC8, 0x57, 0x73, 0x02, |
59 | 0x02, 0x02, 0x02, 0x00, 0x00, 0x22003000, 0x22006000, 0x22108000, |
60 | 0x22003000, 0x22006000, 0x22108000, 0x00 }, |
61 | |
62 | /* 800x600 @ 70Hz */ |
63 | { 45000, 0x0054, 0x0015, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x68, 0x12, |
64 | 0x6f, 0x10, 0x40, 0x58, 0x0b, 0x57, 0x64, 0x57, 0x70, 0x02, |
65 | 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000, |
66 | 0x22004000, 0x22007000, 0x2210A000, 0x00 }, |
67 | |
68 | /* 800x600 @ 72Hz */ |
69 | { 50000, 0x0017, 0x0004, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x6A, 0x19, |
70 | 0x98, 0x10, 0x40, 0x7C, 0x02, 0x57, 0xC8, 0x57, 0x99, 0x02, |
71 | 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000, |
72 | 0x22004000, 0x22007000, 0x2210A000, 0x00 }, |
73 | |
74 | /* 800x600 @ 75Hz */ |
75 | { 49000, 0x001F, 0x0006, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x65, 0x0F, |
76 | 0x6F, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x70, 0x02, |
77 | 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210B000, |
78 | 0x22004000, 0x22007000, 0x2210B000, 0x00 }, |
79 | |
80 | /* 800x600 @ 85Hz */ |
81 | { 56000, 0x0049, 0x000E, 0x30, 0x7E, 0x63, 0x63, 0x82, 0x67, 0x0F, |
82 | 0x75, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x76, 0x02, |
83 | 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22108000, 0x2210b000, |
84 | 0x22004000, 0x22108000, 0x2210b000, 0x00 }, |
85 | |
86 | /* 1024x768 @ 60Hz */ |
87 | { 65000, 0x003F, 0x000A, 0x30, 0xA3, 0x7F, 0x7F, 0x87, 0x83, 0x94, |
88 | 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03, |
89 | 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x22109000, 0x2220D000, |
90 | 0x22005000, 0x22109000, 0x2220D000, 0xC0 }, |
91 | |
92 | /* 1024x768 @ 70Hz */ |
93 | { 75000, 0x0017, 0x0002, 0x30, 0xA1, 0x7F, 0x7F, 0x85, 0x82, 0x93, |
94 | 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03, |
95 | 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x2210A000, 0x2220F000, |
96 | 0x22005000, 0x2210A000, 0x2220F000, 0xC0 }, |
97 | |
98 | /* 1024x768 @ 75Hz */ |
99 | { 78000, 0x0050, 0x0017, 0x20, 0x9F, 0x7F, 0x7F, 0x83, 0x81, 0x8D, |
100 | 0x1E, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x1F, 0x03, |
101 | 0x02, 0x03, 0x02, 0x00, 0x00, 0x22006000, 0x2210B000, 0x22210000, |
102 | 0x22006000, 0x2210B000, 0x22210000, 0x00 }, |
103 | |
104 | /* 1024x768 @ 85Hz */ |
105 | { 94000, 0x003D, 0x000E, 0x20, 0xA7, 0x7F, 0x7F, 0x8B, 0x85, 0x91, |
106 | 0x26, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x27, 0x03, |
107 | 0x02, 0x03, 0x02, 0x00, 0x00, 0x22007000, 0x2220E000, 0x22212000, |
108 | 0x22007000, 0x2220E000, 0x22212000, 0x00 }, |
109 | |
110 | /* 1152x864 @ 60Hz */ |
111 | { 80000, 0x0008, 0x0001, 0x20, 0xB3, 0x8F, 0x8F, 0x97, 0x93, 0x9f, |
112 | 0x87, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5f, 0x88, 0x03, |
113 | 0x03, 0x03, 0x03, 0x00, 0x00, 0x2220C000, 0x22210000, 0x22415000, |
114 | 0x2220C000, 0x22210000, 0x22415000, 0x00 }, |
115 | |
116 | /* 1152x864 @ 70Hz */ |
117 | { 96000, 0x000a, 0x0001, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87, |
118 | 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03, |
119 | 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000, |
120 | 0x22107000, 0x22210000, 0x22415000, 0x00 }, |
121 | |
122 | /* 1152x864 @ 72Hz */ |
123 | { 99000, 0x001f, 0x0006, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87, |
124 | 0x83, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x84, 0x03, |
125 | 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000, |
126 | 0x22107000, 0x22210000, 0x22415000, 0x00 }, |
127 | |
128 | /* 1152x864 @ 75Hz */ |
129 | { 108000, 0x0010, 0x0002, 0x20, 0xC3, 0x8F, 0x8F, 0x87, 0x97, 0x07, |
130 | 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03, |
131 | 0x03, 0x03, 0x03, 0x00, 0x01, 0x22107000, 0x22210000, 0x22415000, |
132 | 0x22107000, 0x22210000, 0x22415000, 0x00 }, |
133 | |
134 | /* 1152x864 @ 85Hz */ |
135 | { 121000, 0x006D, 0x0014, 0x20, 0xc0, 0x8F, 0x8F, 0x84, 0x97, 0x07, |
136 | 0x93, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x94, 0x03, |
137 | 0x03, 0x03, 0x03, 0x00, 0x01, 0x2220C000, 0x22210000, 0x22415000, |
138 | 0x2220C000, 0x22210000, 0x22415000, 0x0 }, |
139 | |
140 | /* 1280x960 @ 60Hz */ |
141 | { 108000, 0x0010, 0x0002, 0x20, 0xDC, 0x9F, 0x9F, 0x80, 0xAB, 0x99, |
142 | 0xE6, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE7, 0x03, |
143 | 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x22415000, |
144 | 0x2210A000, 0x22210000, 0x22415000, 0x00 }, |
145 | |
146 | /* 1280x960 @ 75Hz */ |
147 | { 129000, 0x0029, 0x0006, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xaa, 0x1b, |
148 | 0xE8, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE9, 0x03, |
149 | 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x2241B000, |
150 | 0x2210A000, 0x22210000, 0x2241B000, 0x00 }, |
151 | |
152 | /* 1280x960 @ 85Hz */ |
153 | { 148000, 0x0042, 0x0009, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xA7, 0x1B, |
154 | 0xF1, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xF2, 0x03, |
155 | 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22220000, 0x2241D000, |
156 | 0x2210A000, 0x22220000, 0x2241D000, 0x00 }, |
157 | |
158 | /* 1600x1200 @ 60Hz */ |
159 | { 162000, 0x0019, 0x0006, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07, |
160 | 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04, |
161 | 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210b000, 0x22416000, 0x44419000, |
162 | 0x2210b000, 0x22416000, 0x44419000, 0x00 }, |
163 | |
164 | /* 1600x1200 @ 65 Hz */ |
165 | { 175000, 0x005d, 0x0018, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07, |
166 | 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04, |
167 | 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210c000, 0x22416000, 0x44419000, |
168 | 0x2210c000, 0x22416000, 0x44419000, 0x00 }, |
169 | |
170 | /* 1600x1200 @ 70 Hz */ |
171 | { 189000, 0x003D, 0x000e, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, |
172 | 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, |
173 | 0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, |
174 | 0x2220e000, 0x22416000, 0x44419000, 0x00 }, |
175 | |
176 | /* 1600x1200 @ 72 Hz */ |
177 | { 195000, 0x003f, 0x000e, 0x10, 0x0b, 0xC7, 0xC7, 0x8f, 0xd5, 0x0b, |
178 | 0xE1, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xe2, 0x04, 0x04, |
179 | 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, |
180 | 0x2220e000, 0x22416000, 0x44419000, 0x00 }, |
181 | |
182 | /* 1600x1200 @ 75 Hz */ |
183 | { 202000, 0x0024, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, |
184 | 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04, |
185 | 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, |
186 | 0x2220e000, 0x22416000, 0x44419000, 0x00 }, |
187 | |
188 | /* 1600x1200 @ 85 Hz */ |
189 | { 229000, 0x0029, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, |
190 | 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04, |
191 | 0x04, 0x04, 0x01, 0x00, 0x22210000, 0x22416000, 0x0, |
192 | 0x22210000, 0x22416000, 0x0, 0x00 }, |
193 | }; |
194 | |
195 | void round_off_xres(u32 *xres) |
196 | { |
197 | if (*xres <= 640) |
198 | *xres = 640; |
199 | else if (*xres <= 800) |
200 | *xres = 800; |
201 | else if (*xres <= 1024) |
202 | *xres = 1024; |
203 | else if (*xres <= 1152) |
204 | *xres = 1152; |
205 | else if (*xres <= 1280) |
206 | *xres = 1280; |
207 | else |
208 | *xres = 1600; |
209 | } |
210 | |
211 | inline void round_off_yres(u32 *xres, u32 *yres) |
212 | { |
213 | *yres = (*xres * 3) >> 2; |
214 | } |
215 | |
216 | static int i810fb_find_best_mode(u32 xres, u32 yres, u32 pixclock) |
217 | { |
218 | u32 diff = 0, diff_best = 0xFFFFFFFF, i = 0, i_best = 0; |
219 | u8 hfl = (u8) ((xres >> 3) - 1); |
220 | |
221 | for (i = 0; i < ARRAY_SIZE(std_modes); i++) { |
222 | if (std_modes[i].cr01 == hfl) { |
223 | if (std_modes[i].pixclock <= pixclock) |
224 | diff = pixclock - std_modes[i].pixclock; |
225 | if (diff < diff_best) { |
226 | i_best = i; |
227 | diff_best = diff; |
228 | } |
229 | } |
230 | } |
231 | return i_best; |
232 | } |
233 | |
234 | void i810fb_encode_registers(const struct fb_var_screeninfo *var, |
235 | struct i810fb_par *par, u32 xres, u32 yres) |
236 | { |
237 | u32 i_best = i810fb_find_best_mode(xres, yres, pixclock: par->regs.pixclock); |
238 | |
239 | par->regs = std_modes[i_best]; |
240 | |
241 | /* overlay */ |
242 | par->ovract = ((xres + var->right_margin + var->hsync_len + |
243 | var->left_margin - 32) | ((xres - 32) << 16)); |
244 | } |
245 | |
246 | void i810fb_fill_var_timings(struct fb_var_screeninfo *var) |
247 | { |
248 | u32 total, xres, yres; |
249 | u32 mode, pixclock; |
250 | |
251 | xres = var->xres; |
252 | yres = var->yres; |
253 | |
254 | pixclock = 1000000000 / var->pixclock; |
255 | mode = i810fb_find_best_mode(xres, yres, pixclock); |
256 | |
257 | total = (std_modes[mode].cr00 | (std_modes[mode].cr35 & 1) << 8) + 3; |
258 | total <<= 3; |
259 | |
260 | var->pixclock = 1000000000 / std_modes[mode].pixclock; |
261 | var->right_margin = (std_modes[mode].cr04 << 3) - xres; |
262 | var->hsync_len = ((std_modes[mode].cr05 & 0x1F) - |
263 | (std_modes[mode].cr04 & 0x1F)) << 3; |
264 | var->left_margin = (total - (xres + var->right_margin + |
265 | var->hsync_len)); |
266 | var->sync = FB_SYNC_ON_GREEN; |
267 | if (~(std_modes[mode].msr & (1 << 6))) |
268 | var->sync |= FB_SYNC_HOR_HIGH_ACT; |
269 | if (~(std_modes[mode].msr & (1 << 7))) |
270 | var->sync |= FB_SYNC_VERT_HIGH_ACT; |
271 | |
272 | total = (std_modes[mode].cr06 | (std_modes[mode].cr30 & 0xF) << 8) + 2; |
273 | var->lower_margin = (std_modes[mode].cr10 | |
274 | (std_modes[mode].cr32 & 0x0F) << 8) - yres; |
275 | var->vsync_len = (std_modes[mode].cr11 & 0x0F) - |
276 | (var->lower_margin & 0x0F); |
277 | var->upper_margin = total - (yres + var->lower_margin + var->vsync_len); |
278 | } |
279 | |
280 | u32 i810_get_watermark(const struct fb_var_screeninfo *var, |
281 | struct i810fb_par *par) |
282 | { |
283 | struct mode_registers *params = &par->regs; |
284 | u32 wmark = 0; |
285 | |
286 | if (par->mem_freq == 100) { |
287 | switch (var->bits_per_pixel) { |
288 | case 8: |
289 | wmark = params->bpp8_100; |
290 | break; |
291 | case 16: |
292 | wmark = params->bpp16_100; |
293 | break; |
294 | case 24: |
295 | case 32: |
296 | wmark = params->bpp24_100; |
297 | } |
298 | } else { |
299 | switch (var->bits_per_pixel) { |
300 | case 8: |
301 | wmark = params->bpp8_133; |
302 | break; |
303 | case 16: |
304 | wmark = params->bpp16_133; |
305 | break; |
306 | case 24: |
307 | case 32: |
308 | wmark = params->bpp24_133; |
309 | } |
310 | } |
311 | return wmark; |
312 | } |
313 | |
314 | |