Commit | Line | Data |
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3968cb49 JC |
1 | /* |
2 | * Geode LX framebuffer driver. | |
3 | * | |
4 | * Copyright (C) 2007 Advanced Micro Devices, Inc. | |
5 | * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.) | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/errno.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/console.h> | |
18 | #include <linux/mm.h> | |
19 | #include <linux/slab.h> | |
564820d4 | 20 | #include <linux/suspend.h> |
3968cb49 JC |
21 | #include <linux/delay.h> |
22 | #include <linux/fb.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/uaccess.h> | |
26 | ||
27 | #include "lxfb.h" | |
28 | ||
29 | static char *mode_option; | |
30 | static int noclear, nopanel, nocrt; | |
c805df3d | 31 | static int vram; |
564820d4 | 32 | static int vt_switch; |
3968cb49 JC |
33 | |
34 | /* Most of these modes are sorted in ascending order, but | |
35 | * since the first entry in this table is the "default" mode, | |
36 | * we try to make it something sane - 640x480-60 is sane | |
37 | */ | |
38 | ||
3553a2fa | 39 | static struct fb_videomode geode_modedb[] __initdata = { |
3968cb49 JC |
40 | /* 640x480-60 */ |
41 | { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, | |
42 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
43 | FB_VMODE_NONINTERLACED, 0 }, | |
44 | /* 640x400-70 */ | |
45 | { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, | |
46 | FB_SYNC_HOR_HIGH_ACT, | |
47 | FB_VMODE_NONINTERLACED, 0 }, | |
48 | /* 640x480-70 */ | |
49 | { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, | |
50 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
51 | /* 640x480-72 */ | |
52 | { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, | |
53 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
54 | FB_VMODE_NONINTERLACED, 0 }, | |
55 | /* 640x480-75 */ | |
56 | { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, | |
57 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
58 | FB_VMODE_NONINTERLACED, 0 }, | |
59 | /* 640x480-85 */ | |
60 | { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, | |
61 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
62 | FB_VMODE_NONINTERLACED, 0 }, | |
63 | /* 640x480-90 */ | |
64 | { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, | |
65 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
66 | /* 640x480-100 */ | |
67 | { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, | |
68 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
69 | /* 640x480-60 */ | |
70 | { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, | |
71 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
72 | FB_VMODE_NONINTERLACED, 0 }, | |
73 | /* 800x600-56 */ | |
74 | { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, | |
75 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
76 | /* 800x600-60 */ | |
77 | { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, | |
78 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
79 | /* 800x600-70 */ | |
80 | { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, | |
81 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
82 | /* 800x600-72 */ | |
83 | { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, | |
84 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
85 | /* 800x600-75 */ | |
86 | { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, | |
87 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
88 | /* 800x600-85 */ | |
89 | { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, | |
90 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
91 | /* 800x600-90 */ | |
92 | { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, | |
93 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
94 | /* 800x600-100 */ | |
95 | { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, | |
96 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
97 | /* 800x600-60 */ | |
98 | { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, | |
99 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
100 | FB_VMODE_NONINTERLACED, 0 }, | |
101 | /* 1024x768-60 */ | |
102 | { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, | |
103 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
104 | FB_VMODE_NONINTERLACED, 0 }, | |
105 | /* 1024x768-70 */ | |
106 | { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, | |
107 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
108 | FB_VMODE_NONINTERLACED, 0 }, | |
109 | /* 1024x768-72 */ | |
110 | { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, | |
111 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
112 | /* 1024x768-75 */ | |
113 | { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, | |
114 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
115 | /* 1024x768-85 */ | |
116 | { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, | |
117 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
118 | /* 1024x768-90 */ | |
119 | { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, | |
120 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
121 | /* 1024x768-100 */ | |
122 | { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, | |
123 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
124 | /* 1024x768-60 */ | |
125 | { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, | |
126 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
127 | FB_VMODE_NONINTERLACED, 0 }, | |
128 | /* 1152x864-60 */ | |
129 | { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, | |
130 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
131 | /* 1152x864-70 */ | |
132 | { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, | |
133 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
134 | /* 1152x864-72 */ | |
135 | { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, | |
136 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
137 | /* 1152x864-75 */ | |
138 | { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, | |
139 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
140 | /* 1152x864-85 */ | |
141 | { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, | |
142 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
143 | /* 1152x864-90 */ | |
144 | { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, | |
145 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
146 | /* 1152x864-100 */ | |
147 | { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, | |
148 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
149 | /* 1152x864-60 */ | |
150 | { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, | |
151 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
152 | FB_VMODE_NONINTERLACED, 0 }, | |
153 | /* 1280x1024-60 */ | |
154 | { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, | |
155 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
156 | /* 1280x1024-70 */ | |
157 | { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, | |
158 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
159 | /* 1280x1024-72 */ | |
160 | { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, | |
161 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
162 | /* 1280x1024-75 */ | |
163 | { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, | |
164 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
165 | /* 1280x1024-85 */ | |
166 | { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, | |
167 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
168 | /* 1280x1024-90 */ | |
169 | { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, | |
170 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
171 | /* 1280x1024-100 */ | |
172 | { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, | |
173 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
174 | /* 1280x1024-60 */ | |
175 | { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, | |
176 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
177 | FB_VMODE_NONINTERLACED, 0 }, | |
178 | /* 1600x1200-60 */ | |
179 | { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, | |
180 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
181 | /* 1600x1200-70 */ | |
182 | { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, | |
183 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
184 | /* 1600x1200-72 */ | |
185 | { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, | |
186 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
187 | /* 1600x1200-75 */ | |
188 | { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, | |
189 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
190 | /* 1600x1200-85 */ | |
191 | { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, | |
192 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
193 | /* 1600x1200-90 */ | |
194 | { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, | |
195 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
196 | /* 1600x1200-100 */ | |
197 | { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, | |
198 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
199 | /* 1600x1200-60 */ | |
200 | { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, | |
201 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
202 | FB_VMODE_NONINTERLACED, 0 }, | |
203 | /* 1920x1440-60 */ | |
204 | { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, | |
205 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
206 | /* 1920x1440-70 */ | |
207 | { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, | |
208 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
209 | /* 1920x1440-72 */ | |
210 | { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, | |
211 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
212 | /* 1920x1440-75 */ | |
213 | { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, | |
214 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
215 | /* 1920x1440-85 */ | |
216 | { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, | |
217 | 0, FB_VMODE_NONINTERLACED, 0 }, | |
218 | }; | |
219 | ||
3553a2fa AS |
220 | #ifdef CONFIG_OLPC |
221 | #include <asm/olpc.h> | |
222 | ||
223 | static struct fb_videomode olpc_dcon_modedb[] __initdata = { | |
224 | /* The only mode the DCON has is 1200x900 */ | |
225 | { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, | |
226 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
227 | FB_VMODE_NONINTERLACED, 0 } | |
228 | }; | |
229 | ||
230 | static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) | |
231 | { | |
232 | if (olpc_has_dcon()) { | |
233 | *modedb = (struct fb_videomode *) olpc_dcon_modedb; | |
234 | *size = ARRAY_SIZE(olpc_dcon_modedb); | |
235 | } else { | |
236 | *modedb = (struct fb_videomode *) geode_modedb; | |
237 | *size = ARRAY_SIZE(geode_modedb); | |
238 | } | |
239 | } | |
240 | ||
241 | #else | |
242 | static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) | |
243 | { | |
244 | *modedb = (struct fb_videomode *) geode_modedb; | |
245 | *size = ARRAY_SIZE(geode_modedb); | |
246 | } | |
247 | #endif | |
248 | ||
3968cb49 JC |
249 | static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
250 | { | |
251 | if (var->xres > 1920 || var->yres > 1440) | |
252 | return -EINVAL; | |
253 | ||
254 | if (var->bits_per_pixel == 32) { | |
255 | var->red.offset = 16; var->red.length = 8; | |
256 | var->green.offset = 8; var->green.length = 8; | |
257 | var->blue.offset = 0; var->blue.length = 8; | |
258 | } else if (var->bits_per_pixel == 16) { | |
259 | var->red.offset = 11; var->red.length = 5; | |
260 | var->green.offset = 5; var->green.length = 6; | |
261 | var->blue.offset = 0; var->blue.length = 5; | |
262 | } else if (var->bits_per_pixel == 8) { | |
263 | var->red.offset = 0; var->red.length = 8; | |
264 | var->green.offset = 0; var->green.length = 8; | |
265 | var->blue.offset = 0; var->blue.length = 8; | |
266 | } else | |
267 | return -EINVAL; | |
268 | ||
269 | var->transp.offset = 0; var->transp.length = 0; | |
270 | ||
271 | /* Enough video memory? */ | |
272 | if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) | |
273 | > info->fix.smem_len) | |
274 | return -EINVAL; | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | static int lxfb_set_par(struct fb_info *info) | |
280 | { | |
067f1293 | 281 | if (info->var.bits_per_pixel > 8) |
3968cb49 | 282 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
067f1293 | 283 | else |
3968cb49 | 284 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
3968cb49 JC |
285 | |
286 | info->fix.line_length = lx_get_pitch(info->var.xres, | |
287 | info->var.bits_per_pixel); | |
288 | ||
289 | lx_set_mode(info); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) | |
294 | { | |
295 | chan &= 0xffff; | |
296 | chan >>= 16 - bf->length; | |
297 | return chan << bf->offset; | |
298 | } | |
299 | ||
300 | static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
301 | unsigned blue, unsigned transp, | |
302 | struct fb_info *info) | |
303 | { | |
304 | if (info->var.grayscale) { | |
305 | /* grayscale = 0.30*R + 0.59*G + 0.11*B */ | |
306 | red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; | |
307 | } | |
308 | ||
309 | /* Truecolor has hardware independent palette */ | |
310 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { | |
311 | u32 *pal = info->pseudo_palette; | |
312 | u32 v; | |
313 | ||
314 | if (regno >= 16) | |
315 | return -EINVAL; | |
316 | ||
317 | v = chan_to_field(red, &info->var.red); | |
318 | v |= chan_to_field(green, &info->var.green); | |
319 | v |= chan_to_field(blue, &info->var.blue); | |
320 | ||
321 | pal[regno] = v; | |
322 | } else { | |
323 | if (regno >= 256) | |
324 | return -EINVAL; | |
325 | ||
326 | lx_set_palette_reg(info, regno, red, green, blue); | |
327 | } | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | static int lxfb_blank(int blank_mode, struct fb_info *info) | |
333 | { | |
334 | return lx_blank_display(info, blank_mode); | |
335 | } | |
336 | ||
337 | ||
338 | static int __init lxfb_map_video_memory(struct fb_info *info, | |
339 | struct pci_dev *dev) | |
340 | { | |
341 | struct lxfb_par *par = info->par; | |
342 | int ret; | |
343 | ||
344 | ret = pci_enable_device(dev); | |
345 | ||
346 | if (ret) | |
347 | return ret; | |
348 | ||
349 | ret = pci_request_region(dev, 0, "lxfb-framebuffer"); | |
350 | ||
351 | if (ret) | |
352 | return ret; | |
353 | ||
354 | ret = pci_request_region(dev, 1, "lxfb-gp"); | |
355 | ||
356 | if (ret) | |
357 | return ret; | |
358 | ||
359 | ret = pci_request_region(dev, 2, "lxfb-vg"); | |
360 | ||
361 | if (ret) | |
362 | return ret; | |
363 | ||
31f51fa8 | 364 | ret = pci_request_region(dev, 3, "lxfb-vp"); |
3968cb49 JC |
365 | |
366 | if (ret) | |
367 | return ret; | |
368 | ||
369 | info->fix.smem_start = pci_resource_start(dev, 0); | |
c805df3d | 370 | info->fix.smem_len = vram ? vram : lx_framebuffer_size(); |
3968cb49 JC |
371 | |
372 | info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); | |
373 | ||
374 | ret = -ENOMEM; | |
375 | ||
376 | if (info->screen_base == NULL) | |
377 | return ret; | |
378 | ||
3c36aa5c | 379 | par->gp_regs = pci_ioremap_bar(dev, 1); |
3968cb49 JC |
380 | |
381 | if (par->gp_regs == NULL) | |
382 | return ret; | |
383 | ||
3c36aa5c | 384 | par->dc_regs = pci_ioremap_bar(dev, 2); |
3968cb49 JC |
385 | |
386 | if (par->dc_regs == NULL) | |
387 | return ret; | |
388 | ||
3c36aa5c | 389 | par->vp_regs = pci_ioremap_bar(dev, 3); |
3968cb49 | 390 | |
31f51fa8 | 391 | if (par->vp_regs == NULL) |
3968cb49 JC |
392 | return ret; |
393 | ||
f5c90e85 AS |
394 | write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); |
395 | write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); | |
396 | write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); | |
3968cb49 JC |
397 | |
398 | dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", | |
399 | info->fix.smem_len / 1024, info->fix.smem_start); | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | static struct fb_ops lxfb_ops = { | |
405 | .owner = THIS_MODULE, | |
406 | .fb_check_var = lxfb_check_var, | |
407 | .fb_set_par = lxfb_set_par, | |
408 | .fb_setcolreg = lxfb_setcolreg, | |
409 | .fb_blank = lxfb_blank, | |
410 | /* No HW acceleration for now. */ | |
411 | .fb_fillrect = cfb_fillrect, | |
412 | .fb_copyarea = cfb_copyarea, | |
413 | .fb_imageblit = cfb_imageblit, | |
414 | }; | |
415 | ||
416 | static struct fb_info * __init lxfb_init_fbinfo(struct device *dev) | |
417 | { | |
418 | struct lxfb_par *par; | |
419 | struct fb_info *info; | |
420 | ||
421 | /* Alloc enough space for the pseudo palette. */ | |
422 | info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, | |
423 | dev); | |
424 | if (!info) | |
425 | return NULL; | |
426 | ||
427 | par = info->par; | |
428 | ||
429 | strcpy(info->fix.id, "Geode LX"); | |
430 | ||
431 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
432 | info->fix.type_aux = 0; | |
433 | info->fix.xpanstep = 0; | |
434 | info->fix.ypanstep = 0; | |
435 | info->fix.ywrapstep = 0; | |
436 | info->fix.accel = FB_ACCEL_NONE; | |
437 | ||
438 | info->var.nonstd = 0; | |
439 | info->var.activate = FB_ACTIVATE_NOW; | |
440 | info->var.height = -1; | |
441 | info->var.width = -1; | |
442 | info->var.accel_flags = 0; | |
443 | info->var.vmode = FB_VMODE_NONINTERLACED; | |
444 | ||
445 | info->fbops = &lxfb_ops; | |
446 | info->flags = FBINFO_DEFAULT; | |
447 | info->node = -1; | |
448 | ||
449 | info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); | |
450 | ||
067f1293 MLP |
451 | if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { |
452 | framebuffer_release(info); | |
453 | return NULL; | |
454 | } | |
455 | ||
3968cb49 JC |
456 | info->var.grayscale = 0; |
457 | ||
458 | return info; | |
459 | } | |
460 | ||
f694e53b AS |
461 | #ifdef CONFIG_PM |
462 | static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) | |
463 | { | |
464 | struct fb_info *info = pci_get_drvdata(pdev); | |
465 | ||
466 | if (state.event == PM_EVENT_SUSPEND) { | |
467 | acquire_console_sem(); | |
468 | lx_powerdown(info); | |
469 | fb_set_suspend(info, 1); | |
470 | release_console_sem(); | |
471 | } | |
472 | ||
473 | /* there's no point in setting PCI states; we emulate PCI, so | |
474 | * we don't end up getting power savings anyways */ | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | static int lxfb_resume(struct pci_dev *pdev) | |
480 | { | |
481 | struct fb_info *info = pci_get_drvdata(pdev); | |
482 | int ret; | |
483 | ||
484 | acquire_console_sem(); | |
485 | ret = lx_powerup(info); | |
486 | if (ret) { | |
487 | printk(KERN_ERR "lxfb: power up failed!\n"); | |
488 | return ret; | |
489 | } | |
490 | ||
491 | fb_set_suspend(info, 0); | |
492 | release_console_sem(); | |
493 | return 0; | |
494 | } | |
495 | #else | |
496 | #define lxfb_suspend NULL | |
497 | #define lxfb_resume NULL | |
498 | #endif | |
499 | ||
3968cb49 JC |
500 | static int __init lxfb_probe(struct pci_dev *pdev, |
501 | const struct pci_device_id *id) | |
502 | { | |
503 | struct lxfb_par *par; | |
504 | struct fb_info *info; | |
505 | int ret; | |
506 | ||
507 | struct fb_videomode *modedb_ptr; | |
3553a2fa | 508 | unsigned int modedb_size; |
3968cb49 JC |
509 | |
510 | info = lxfb_init_fbinfo(&pdev->dev); | |
511 | ||
512 | if (info == NULL) | |
513 | return -ENOMEM; | |
514 | ||
515 | par = info->par; | |
516 | ||
517 | ret = lxfb_map_video_memory(info, pdev); | |
518 | ||
519 | if (ret < 0) { | |
520 | dev_err(&pdev->dev, | |
521 | "failed to map frame buffer or controller registers\n"); | |
522 | goto err; | |
523 | } | |
524 | ||
525 | /* Set up the desired outputs */ | |
526 | ||
527 | par->output = 0; | |
528 | par->output |= (nopanel) ? 0 : OUTPUT_PANEL; | |
529 | par->output |= (nocrt) ? 0 : OUTPUT_CRT; | |
530 | ||
531 | /* Set up the mode database */ | |
532 | ||
3553a2fa | 533 | get_modedb(&modedb_ptr, &modedb_size); |
3968cb49 JC |
534 | ret = fb_find_mode(&info->var, info, mode_option, |
535 | modedb_ptr, modedb_size, NULL, 16); | |
536 | ||
537 | if (ret == 0 || ret == 4) { | |
538 | dev_err(&pdev->dev, "could not find valid video mode\n"); | |
539 | ret = -EINVAL; | |
540 | goto err; | |
541 | } | |
542 | ||
543 | /* Clear the screen of garbage, unless noclear was specified, | |
544 | * in which case we assume the user knows what he is doing */ | |
545 | ||
546 | if (!noclear) | |
547 | memset_io(info->screen_base, 0, info->fix.smem_len); | |
548 | ||
549 | /* Set the mode */ | |
550 | ||
551 | lxfb_check_var(&info->var, info); | |
552 | lxfb_set_par(info); | |
553 | ||
564820d4 AS |
554 | pm_set_vt_switch(vt_switch); |
555 | ||
3968cb49 JC |
556 | if (register_framebuffer(info) < 0) { |
557 | ret = -EINVAL; | |
558 | goto err; | |
559 | } | |
560 | pci_set_drvdata(pdev, info); | |
561 | printk(KERN_INFO "fb%d: %s frame buffer device\n", | |
562 | info->node, info->fix.id); | |
563 | ||
564 | return 0; | |
565 | ||
566 | err: | |
567 | if (info->screen_base) { | |
568 | iounmap(info->screen_base); | |
569 | pci_release_region(pdev, 0); | |
570 | } | |
571 | if (par->gp_regs) { | |
572 | iounmap(par->gp_regs); | |
573 | pci_release_region(pdev, 1); | |
574 | } | |
575 | if (par->dc_regs) { | |
576 | iounmap(par->dc_regs); | |
577 | pci_release_region(pdev, 2); | |
578 | } | |
31f51fa8 AS |
579 | if (par->vp_regs) { |
580 | iounmap(par->vp_regs); | |
3968cb49 JC |
581 | pci_release_region(pdev, 3); |
582 | } | |
583 | ||
067f1293 MLP |
584 | if (info) { |
585 | fb_dealloc_cmap(&info->cmap); | |
3968cb49 | 586 | framebuffer_release(info); |
067f1293 | 587 | } |
3968cb49 JC |
588 | |
589 | return ret; | |
590 | } | |
591 | ||
592 | static void lxfb_remove(struct pci_dev *pdev) | |
593 | { | |
594 | struct fb_info *info = pci_get_drvdata(pdev); | |
595 | struct lxfb_par *par = info->par; | |
596 | ||
597 | unregister_framebuffer(info); | |
598 | ||
599 | iounmap(info->screen_base); | |
600 | pci_release_region(pdev, 0); | |
601 | ||
602 | iounmap(par->gp_regs); | |
603 | pci_release_region(pdev, 1); | |
604 | ||
605 | iounmap(par->dc_regs); | |
606 | pci_release_region(pdev, 2); | |
607 | ||
31f51fa8 | 608 | iounmap(par->vp_regs); |
3968cb49 JC |
609 | pci_release_region(pdev, 3); |
610 | ||
067f1293 | 611 | fb_dealloc_cmap(&info->cmap); |
3968cb49 JC |
612 | pci_set_drvdata(pdev, NULL); |
613 | framebuffer_release(info); | |
614 | } | |
615 | ||
616 | static struct pci_device_id lxfb_id_table[] = { | |
617 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, | |
618 | { 0, } | |
619 | }; | |
620 | ||
621 | MODULE_DEVICE_TABLE(pci, lxfb_id_table); | |
622 | ||
623 | static struct pci_driver lxfb_driver = { | |
624 | .name = "lxfb", | |
625 | .id_table = lxfb_id_table, | |
626 | .probe = lxfb_probe, | |
627 | .remove = lxfb_remove, | |
f694e53b AS |
628 | .suspend = lxfb_suspend, |
629 | .resume = lxfb_resume, | |
3968cb49 JC |
630 | }; |
631 | ||
632 | #ifndef MODULE | |
633 | static int __init lxfb_setup(char *options) | |
634 | { | |
635 | char *opt; | |
636 | ||
637 | if (!options || !*options) | |
638 | return 0; | |
639 | ||
42b558d5 | 640 | while ((opt = strsep(&options, ",")) != NULL) { |
3968cb49 JC |
641 | if (!*opt) |
642 | continue; | |
643 | ||
c805df3d | 644 | if (!strcmp(opt, "noclear")) |
3968cb49 JC |
645 | noclear = 1; |
646 | else if (!strcmp(opt, "nopanel")) | |
647 | nopanel = 1; | |
648 | else if (!strcmp(opt, "nocrt")) | |
649 | nocrt = 1; | |
650 | else | |
651 | mode_option = opt; | |
652 | } | |
653 | ||
654 | return 0; | |
655 | } | |
656 | #endif | |
657 | ||
658 | static int __init lxfb_init(void) | |
659 | { | |
660 | #ifndef MODULE | |
661 | char *option = NULL; | |
662 | ||
663 | if (fb_get_options("lxfb", &option)) | |
664 | return -ENODEV; | |
665 | ||
666 | lxfb_setup(option); | |
667 | #endif | |
668 | return pci_register_driver(&lxfb_driver); | |
669 | } | |
670 | static void __exit lxfb_cleanup(void) | |
671 | { | |
672 | pci_unregister_driver(&lxfb_driver); | |
673 | } | |
674 | ||
675 | module_init(lxfb_init); | |
676 | module_exit(lxfb_cleanup); | |
677 | ||
678 | module_param(mode_option, charp, 0); | |
679 | MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); | |
680 | ||
c805df3d AS |
681 | module_param(vram, int, 0); |
682 | MODULE_PARM_DESC(vram, "video memory size"); | |
3968cb49 | 683 | |
564820d4 AS |
684 | module_param(vt_switch, int, 0); |
685 | MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); | |
686 | ||
3968cb49 JC |
687 | MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); |
688 | MODULE_LICENSE("GPL"); |