Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 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> |
Andres Salomon | 564820d | 2008-04-28 02:15:28 -0700 | [diff] [blame] | 19 | #include <linux/suspend.h> |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 20 | #include <linux/delay.h> |
| 21 | #include <linux/fb.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/pci.h> |
| 24 | #include <linux/uaccess.h> |
| 25 | |
| 26 | #include "lxfb.h" |
| 27 | |
| 28 | static char *mode_option; |
| 29 | static int noclear, nopanel, nocrt; |
Andres Salomon | c805df3 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 30 | static int vram; |
Andres Salomon | 564820d | 2008-04-28 02:15:28 -0700 | [diff] [blame] | 31 | static int vt_switch; |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 32 | |
| 33 | /* Most of these modes are sorted in ascending order, but |
| 34 | * since the first entry in this table is the "default" mode, |
| 35 | * we try to make it something sane - 640x480-60 is sane |
| 36 | */ |
| 37 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 38 | static struct fb_videomode geode_modedb[] = { |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 39 | /* 640x480-60 */ |
| 40 | { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, |
| 41 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 42 | FB_VMODE_NONINTERLACED, 0 }, |
| 43 | /* 640x400-70 */ |
| 44 | { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, |
| 45 | FB_SYNC_HOR_HIGH_ACT, |
| 46 | FB_VMODE_NONINTERLACED, 0 }, |
| 47 | /* 640x480-70 */ |
| 48 | { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, |
| 49 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 50 | /* 640x480-72 */ |
| 51 | { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, |
| 52 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 53 | FB_VMODE_NONINTERLACED, 0 }, |
| 54 | /* 640x480-75 */ |
| 55 | { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, |
| 56 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 57 | FB_VMODE_NONINTERLACED, 0 }, |
| 58 | /* 640x480-85 */ |
| 59 | { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, |
| 60 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 61 | FB_VMODE_NONINTERLACED, 0 }, |
| 62 | /* 640x480-90 */ |
| 63 | { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, |
| 64 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 65 | /* 640x480-100 */ |
| 66 | { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, |
| 67 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 68 | /* 640x480-60 */ |
| 69 | { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, |
| 70 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 71 | FB_VMODE_NONINTERLACED, 0 }, |
| 72 | /* 800x600-56 */ |
| 73 | { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, |
| 74 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 75 | /* 800x600-60 */ |
| 76 | { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, |
| 77 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 78 | /* 800x600-70 */ |
| 79 | { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, |
| 80 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 81 | /* 800x600-72 */ |
| 82 | { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, |
| 83 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 84 | /* 800x600-75 */ |
| 85 | { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, |
| 86 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 87 | /* 800x600-85 */ |
| 88 | { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, |
| 89 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 90 | /* 800x600-90 */ |
| 91 | { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, |
| 92 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 93 | /* 800x600-100 */ |
| 94 | { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, |
| 95 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 96 | /* 800x600-60 */ |
| 97 | { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, |
| 98 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 99 | FB_VMODE_NONINTERLACED, 0 }, |
| 100 | /* 1024x768-60 */ |
| 101 | { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, |
| 102 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 103 | FB_VMODE_NONINTERLACED, 0 }, |
| 104 | /* 1024x768-70 */ |
| 105 | { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, |
| 106 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 107 | FB_VMODE_NONINTERLACED, 0 }, |
| 108 | /* 1024x768-72 */ |
| 109 | { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, |
| 110 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 111 | /* 1024x768-75 */ |
| 112 | { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, |
| 113 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 114 | /* 1024x768-85 */ |
| 115 | { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, |
| 116 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 117 | /* 1024x768-90 */ |
| 118 | { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, |
| 119 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 120 | /* 1024x768-100 */ |
| 121 | { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, |
| 122 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 123 | /* 1024x768-60 */ |
| 124 | { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, |
| 125 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 126 | FB_VMODE_NONINTERLACED, 0 }, |
| 127 | /* 1152x864-60 */ |
| 128 | { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, |
| 129 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 130 | /* 1152x864-70 */ |
| 131 | { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, |
| 132 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 133 | /* 1152x864-72 */ |
| 134 | { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, |
| 135 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 136 | /* 1152x864-75 */ |
| 137 | { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, |
| 138 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 139 | /* 1152x864-85 */ |
| 140 | { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, |
| 141 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 142 | /* 1152x864-90 */ |
| 143 | { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, |
| 144 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 145 | /* 1152x864-100 */ |
| 146 | { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, |
| 147 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 148 | /* 1152x864-60 */ |
| 149 | { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, |
| 150 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 151 | FB_VMODE_NONINTERLACED, 0 }, |
| 152 | /* 1280x1024-60 */ |
| 153 | { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, |
| 154 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 155 | /* 1280x1024-70 */ |
| 156 | { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, |
| 157 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 158 | /* 1280x1024-72 */ |
| 159 | { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, |
| 160 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 161 | /* 1280x1024-75 */ |
| 162 | { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, |
| 163 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 164 | /* 1280x1024-85 */ |
| 165 | { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, |
| 166 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 167 | /* 1280x1024-90 */ |
| 168 | { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, |
| 169 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 170 | /* 1280x1024-100 */ |
| 171 | { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, |
| 172 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 173 | /* 1280x1024-60 */ |
| 174 | { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, |
| 175 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 176 | FB_VMODE_NONINTERLACED, 0 }, |
| 177 | /* 1600x1200-60 */ |
| 178 | { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, |
| 179 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 180 | /* 1600x1200-70 */ |
| 181 | { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, |
| 182 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 183 | /* 1600x1200-72 */ |
| 184 | { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, |
| 185 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 186 | /* 1600x1200-75 */ |
| 187 | { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, |
| 188 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 189 | /* 1600x1200-85 */ |
| 190 | { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, |
| 191 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 192 | /* 1600x1200-90 */ |
| 193 | { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, |
| 194 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 195 | /* 1600x1200-100 */ |
| 196 | { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, |
| 197 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 198 | /* 1600x1200-60 */ |
| 199 | { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, |
| 200 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 201 | FB_VMODE_NONINTERLACED, 0 }, |
| 202 | /* 1920x1440-60 */ |
| 203 | { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, |
| 204 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 205 | /* 1920x1440-70 */ |
| 206 | { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, |
| 207 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 208 | /* 1920x1440-72 */ |
| 209 | { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, |
| 210 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 211 | /* 1920x1440-75 */ |
| 212 | { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, |
| 213 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 214 | /* 1920x1440-85 */ |
| 215 | { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, |
| 216 | 0, FB_VMODE_NONINTERLACED, 0 }, |
| 217 | }; |
| 218 | |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 219 | #ifdef CONFIG_OLPC |
| 220 | #include <asm/olpc.h> |
| 221 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 222 | static struct fb_videomode olpc_dcon_modedb[] = { |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 223 | /* The only mode the DCON has is 1200x900 */ |
| 224 | { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, |
| 225 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 226 | FB_VMODE_NONINTERLACED, 0 } |
| 227 | }; |
| 228 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 229 | static void get_modedb(struct fb_videomode **modedb, unsigned int *size) |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 230 | { |
| 231 | if (olpc_has_dcon()) { |
| 232 | *modedb = (struct fb_videomode *) olpc_dcon_modedb; |
| 233 | *size = ARRAY_SIZE(olpc_dcon_modedb); |
| 234 | } else { |
| 235 | *modedb = (struct fb_videomode *) geode_modedb; |
| 236 | *size = ARRAY_SIZE(geode_modedb); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | #else |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 241 | static void get_modedb(struct fb_videomode **modedb, unsigned int *size) |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 242 | { |
| 243 | *modedb = (struct fb_videomode *) geode_modedb; |
| 244 | *size = ARRAY_SIZE(geode_modedb); |
| 245 | } |
| 246 | #endif |
| 247 | |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 248 | static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 249 | { |
| 250 | if (var->xres > 1920 || var->yres > 1440) |
| 251 | return -EINVAL; |
| 252 | |
| 253 | if (var->bits_per_pixel == 32) { |
| 254 | var->red.offset = 16; var->red.length = 8; |
| 255 | var->green.offset = 8; var->green.length = 8; |
| 256 | var->blue.offset = 0; var->blue.length = 8; |
| 257 | } else if (var->bits_per_pixel == 16) { |
| 258 | var->red.offset = 11; var->red.length = 5; |
| 259 | var->green.offset = 5; var->green.length = 6; |
| 260 | var->blue.offset = 0; var->blue.length = 5; |
| 261 | } else if (var->bits_per_pixel == 8) { |
| 262 | var->red.offset = 0; var->red.length = 8; |
| 263 | var->green.offset = 0; var->green.length = 8; |
| 264 | var->blue.offset = 0; var->blue.length = 8; |
| 265 | } else |
| 266 | return -EINVAL; |
| 267 | |
| 268 | var->transp.offset = 0; var->transp.length = 0; |
| 269 | |
| 270 | /* Enough video memory? */ |
| 271 | if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) |
| 272 | > info->fix.smem_len) |
| 273 | return -EINVAL; |
| 274 | |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | static int lxfb_set_par(struct fb_info *info) |
| 279 | { |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 280 | if (info->var.bits_per_pixel > 8) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 281 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 282 | else |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 283 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 284 | |
| 285 | info->fix.line_length = lx_get_pitch(info->var.xres, |
| 286 | info->var.bits_per_pixel); |
| 287 | |
| 288 | lx_set_mode(info); |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) |
| 293 | { |
| 294 | chan &= 0xffff; |
| 295 | chan >>= 16 - bf->length; |
| 296 | return chan << bf->offset; |
| 297 | } |
| 298 | |
| 299 | static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 300 | unsigned blue, unsigned transp, |
| 301 | struct fb_info *info) |
| 302 | { |
| 303 | if (info->var.grayscale) { |
| 304 | /* grayscale = 0.30*R + 0.59*G + 0.11*B */ |
| 305 | red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; |
| 306 | } |
| 307 | |
| 308 | /* Truecolor has hardware independent palette */ |
| 309 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
| 310 | u32 *pal = info->pseudo_palette; |
| 311 | u32 v; |
| 312 | |
| 313 | if (regno >= 16) |
| 314 | return -EINVAL; |
| 315 | |
| 316 | v = chan_to_field(red, &info->var.red); |
| 317 | v |= chan_to_field(green, &info->var.green); |
| 318 | v |= chan_to_field(blue, &info->var.blue); |
| 319 | |
| 320 | pal[regno] = v; |
| 321 | } else { |
| 322 | if (regno >= 256) |
| 323 | return -EINVAL; |
| 324 | |
| 325 | lx_set_palette_reg(info, regno, red, green, blue); |
| 326 | } |
| 327 | |
| 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | static int lxfb_blank(int blank_mode, struct fb_info *info) |
| 332 | { |
| 333 | return lx_blank_display(info, blank_mode); |
| 334 | } |
| 335 | |
| 336 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 337 | static int lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 338 | { |
| 339 | struct lxfb_par *par = info->par; |
| 340 | int ret; |
| 341 | |
| 342 | ret = pci_enable_device(dev); |
| 343 | |
| 344 | if (ret) |
| 345 | return ret; |
| 346 | |
| 347 | ret = pci_request_region(dev, 0, "lxfb-framebuffer"); |
| 348 | |
| 349 | if (ret) |
| 350 | return ret; |
| 351 | |
| 352 | ret = pci_request_region(dev, 1, "lxfb-gp"); |
| 353 | |
| 354 | if (ret) |
| 355 | return ret; |
| 356 | |
| 357 | ret = pci_request_region(dev, 2, "lxfb-vg"); |
| 358 | |
| 359 | if (ret) |
| 360 | return ret; |
| 361 | |
Andres Salomon | 31f51fa | 2008-04-28 02:15:25 -0700 | [diff] [blame] | 362 | ret = pci_request_region(dev, 3, "lxfb-vp"); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 363 | |
| 364 | if (ret) |
| 365 | return ret; |
| 366 | |
| 367 | info->fix.smem_start = pci_resource_start(dev, 0); |
Andres Salomon | c805df3 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 368 | info->fix.smem_len = vram ? vram : lx_framebuffer_size(); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 369 | |
| 370 | info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); |
| 371 | |
| 372 | ret = -ENOMEM; |
| 373 | |
| 374 | if (info->screen_base == NULL) |
| 375 | return ret; |
| 376 | |
Arjan van de Ven | 3c36aa5 | 2009-01-06 14:42:28 -0800 | [diff] [blame] | 377 | par->gp_regs = pci_ioremap_bar(dev, 1); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 378 | |
| 379 | if (par->gp_regs == NULL) |
| 380 | return ret; |
| 381 | |
Arjan van de Ven | 3c36aa5 | 2009-01-06 14:42:28 -0800 | [diff] [blame] | 382 | par->dc_regs = pci_ioremap_bar(dev, 2); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 383 | |
| 384 | if (par->dc_regs == NULL) |
| 385 | return ret; |
| 386 | |
Arjan van de Ven | 3c36aa5 | 2009-01-06 14:42:28 -0800 | [diff] [blame] | 387 | par->vp_regs = pci_ioremap_bar(dev, 3); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 388 | |
Andres Salomon | 31f51fa | 2008-04-28 02:15:25 -0700 | [diff] [blame] | 389 | if (par->vp_regs == NULL) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 390 | return ret; |
| 391 | |
Andres Salomon | f5c90e8 | 2008-04-28 02:15:24 -0700 | [diff] [blame] | 392 | write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); |
| 393 | write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); |
| 394 | write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 395 | |
| 396 | dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", |
| 397 | info->fix.smem_len / 1024, info->fix.smem_start); |
| 398 | |
| 399 | return 0; |
| 400 | } |
| 401 | |
| 402 | static struct fb_ops lxfb_ops = { |
| 403 | .owner = THIS_MODULE, |
| 404 | .fb_check_var = lxfb_check_var, |
| 405 | .fb_set_par = lxfb_set_par, |
| 406 | .fb_setcolreg = lxfb_setcolreg, |
| 407 | .fb_blank = lxfb_blank, |
| 408 | /* No HW acceleration for now. */ |
| 409 | .fb_fillrect = cfb_fillrect, |
| 410 | .fb_copyarea = cfb_copyarea, |
| 411 | .fb_imageblit = cfb_imageblit, |
| 412 | }; |
| 413 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 414 | static struct fb_info *lxfb_init_fbinfo(struct device *dev) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 415 | { |
| 416 | struct lxfb_par *par; |
| 417 | struct fb_info *info; |
| 418 | |
| 419 | /* Alloc enough space for the pseudo palette. */ |
| 420 | info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, |
| 421 | dev); |
| 422 | if (!info) |
| 423 | return NULL; |
| 424 | |
| 425 | par = info->par; |
| 426 | |
| 427 | strcpy(info->fix.id, "Geode LX"); |
| 428 | |
| 429 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
| 430 | info->fix.type_aux = 0; |
| 431 | info->fix.xpanstep = 0; |
| 432 | info->fix.ypanstep = 0; |
| 433 | info->fix.ywrapstep = 0; |
| 434 | info->fix.accel = FB_ACCEL_NONE; |
| 435 | |
| 436 | info->var.nonstd = 0; |
| 437 | info->var.activate = FB_ACTIVATE_NOW; |
| 438 | info->var.height = -1; |
| 439 | info->var.width = -1; |
| 440 | info->var.accel_flags = 0; |
| 441 | info->var.vmode = FB_VMODE_NONINTERLACED; |
| 442 | |
| 443 | info->fbops = &lxfb_ops; |
| 444 | info->flags = FBINFO_DEFAULT; |
| 445 | info->node = -1; |
| 446 | |
| 447 | info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); |
| 448 | |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 449 | if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { |
| 450 | framebuffer_release(info); |
| 451 | return NULL; |
| 452 | } |
| 453 | |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 454 | info->var.grayscale = 0; |
| 455 | |
| 456 | return info; |
| 457 | } |
| 458 | |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 459 | #ifdef CONFIG_PM |
| 460 | static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) |
| 461 | { |
| 462 | struct fb_info *info = pci_get_drvdata(pdev); |
| 463 | |
| 464 | if (state.event == PM_EVENT_SUSPEND) { |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 465 | console_lock(); |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 466 | lx_powerdown(info); |
| 467 | fb_set_suspend(info, 1); |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 468 | console_unlock(); |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 469 | } |
| 470 | |
| 471 | /* there's no point in setting PCI states; we emulate PCI, so |
| 472 | * we don't end up getting power savings anyways */ |
| 473 | |
| 474 | return 0; |
| 475 | } |
| 476 | |
| 477 | static int lxfb_resume(struct pci_dev *pdev) |
| 478 | { |
| 479 | struct fb_info *info = pci_get_drvdata(pdev); |
| 480 | int ret; |
| 481 | |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 482 | console_lock(); |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 483 | ret = lx_powerup(info); |
| 484 | if (ret) { |
| 485 | printk(KERN_ERR "lxfb: power up failed!\n"); |
| 486 | return ret; |
| 487 | } |
| 488 | |
| 489 | fb_set_suspend(info, 0); |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 490 | console_unlock(); |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 491 | return 0; |
| 492 | } |
| 493 | #else |
| 494 | #define lxfb_suspend NULL |
| 495 | #define lxfb_resume NULL |
| 496 | #endif |
| 497 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 498 | static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 499 | { |
| 500 | struct lxfb_par *par; |
| 501 | struct fb_info *info; |
| 502 | int ret; |
| 503 | |
| 504 | struct fb_videomode *modedb_ptr; |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 505 | unsigned int modedb_size; |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 506 | |
| 507 | info = lxfb_init_fbinfo(&pdev->dev); |
| 508 | |
| 509 | if (info == NULL) |
| 510 | return -ENOMEM; |
| 511 | |
| 512 | par = info->par; |
| 513 | |
| 514 | ret = lxfb_map_video_memory(info, pdev); |
| 515 | |
| 516 | if (ret < 0) { |
| 517 | dev_err(&pdev->dev, |
| 518 | "failed to map frame buffer or controller registers\n"); |
| 519 | goto err; |
| 520 | } |
| 521 | |
| 522 | /* Set up the desired outputs */ |
| 523 | |
| 524 | par->output = 0; |
| 525 | par->output |= (nopanel) ? 0 : OUTPUT_PANEL; |
| 526 | par->output |= (nocrt) ? 0 : OUTPUT_CRT; |
| 527 | |
| 528 | /* Set up the mode database */ |
| 529 | |
Andres Salomon | 3553a2f | 2008-04-28 02:15:31 -0700 | [diff] [blame] | 530 | get_modedb(&modedb_ptr, &modedb_size); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 531 | ret = fb_find_mode(&info->var, info, mode_option, |
| 532 | modedb_ptr, modedb_size, NULL, 16); |
| 533 | |
| 534 | if (ret == 0 || ret == 4) { |
| 535 | dev_err(&pdev->dev, "could not find valid video mode\n"); |
| 536 | ret = -EINVAL; |
| 537 | goto err; |
| 538 | } |
| 539 | |
| 540 | /* Clear the screen of garbage, unless noclear was specified, |
| 541 | * in which case we assume the user knows what he is doing */ |
| 542 | |
| 543 | if (!noclear) |
| 544 | memset_io(info->screen_base, 0, info->fix.smem_len); |
| 545 | |
| 546 | /* Set the mode */ |
| 547 | |
| 548 | lxfb_check_var(&info->var, info); |
| 549 | lxfb_set_par(info); |
| 550 | |
Andres Salomon | 564820d | 2008-04-28 02:15:28 -0700 | [diff] [blame] | 551 | pm_set_vt_switch(vt_switch); |
| 552 | |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 553 | if (register_framebuffer(info) < 0) { |
| 554 | ret = -EINVAL; |
| 555 | goto err; |
| 556 | } |
| 557 | pci_set_drvdata(pdev, info); |
| 558 | printk(KERN_INFO "fb%d: %s frame buffer device\n", |
| 559 | info->node, info->fix.id); |
| 560 | |
| 561 | return 0; |
| 562 | |
| 563 | err: |
| 564 | if (info->screen_base) { |
| 565 | iounmap(info->screen_base); |
| 566 | pci_release_region(pdev, 0); |
| 567 | } |
| 568 | if (par->gp_regs) { |
| 569 | iounmap(par->gp_regs); |
| 570 | pci_release_region(pdev, 1); |
| 571 | } |
| 572 | if (par->dc_regs) { |
| 573 | iounmap(par->dc_regs); |
| 574 | pci_release_region(pdev, 2); |
| 575 | } |
Andres Salomon | 31f51fa | 2008-04-28 02:15:25 -0700 | [diff] [blame] | 576 | if (par->vp_regs) { |
| 577 | iounmap(par->vp_regs); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 578 | pci_release_region(pdev, 3); |
| 579 | } |
| 580 | |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 581 | if (info) { |
| 582 | fb_dealloc_cmap(&info->cmap); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 583 | framebuffer_release(info); |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 584 | } |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 585 | |
| 586 | return ret; |
| 587 | } |
| 588 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 589 | static void lxfb_remove(struct pci_dev *pdev) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 590 | { |
| 591 | struct fb_info *info = pci_get_drvdata(pdev); |
| 592 | struct lxfb_par *par = info->par; |
| 593 | |
| 594 | unregister_framebuffer(info); |
| 595 | |
| 596 | iounmap(info->screen_base); |
| 597 | pci_release_region(pdev, 0); |
| 598 | |
| 599 | iounmap(par->gp_regs); |
| 600 | pci_release_region(pdev, 1); |
| 601 | |
| 602 | iounmap(par->dc_regs); |
| 603 | pci_release_region(pdev, 2); |
| 604 | |
Andres Salomon | 31f51fa | 2008-04-28 02:15:25 -0700 | [diff] [blame] | 605 | iounmap(par->vp_regs); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 606 | pci_release_region(pdev, 3); |
| 607 | |
Marco La Porta | 067f129 | 2009-02-11 13:04:20 -0800 | [diff] [blame] | 608 | fb_dealloc_cmap(&info->cmap); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 609 | framebuffer_release(info); |
| 610 | } |
| 611 | |
| 612 | static struct pci_device_id lxfb_id_table[] = { |
| 613 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, |
| 614 | { 0, } |
| 615 | }; |
| 616 | |
| 617 | MODULE_DEVICE_TABLE(pci, lxfb_id_table); |
| 618 | |
| 619 | static struct pci_driver lxfb_driver = { |
| 620 | .name = "lxfb", |
| 621 | .id_table = lxfb_id_table, |
| 622 | .probe = lxfb_probe, |
| 623 | .remove = lxfb_remove, |
Andres Salomon | f694e53 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 624 | .suspend = lxfb_suspend, |
| 625 | .resume = lxfb_resume, |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 626 | }; |
| 627 | |
| 628 | #ifndef MODULE |
| 629 | static int __init lxfb_setup(char *options) |
| 630 | { |
| 631 | char *opt; |
| 632 | |
| 633 | if (!options || !*options) |
| 634 | return 0; |
| 635 | |
Eugene Teo | 42b558d | 2007-10-16 01:28:51 -0700 | [diff] [blame] | 636 | while ((opt = strsep(&options, ",")) != NULL) { |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 637 | if (!*opt) |
| 638 | continue; |
| 639 | |
Andres Salomon | c805df3 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 640 | if (!strcmp(opt, "noclear")) |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 641 | noclear = 1; |
| 642 | else if (!strcmp(opt, "nopanel")) |
| 643 | nopanel = 1; |
| 644 | else if (!strcmp(opt, "nocrt")) |
| 645 | nocrt = 1; |
| 646 | else |
| 647 | mode_option = opt; |
| 648 | } |
| 649 | |
| 650 | return 0; |
| 651 | } |
| 652 | #endif |
| 653 | |
| 654 | static int __init lxfb_init(void) |
| 655 | { |
| 656 | #ifndef MODULE |
| 657 | char *option = NULL; |
| 658 | |
| 659 | if (fb_get_options("lxfb", &option)) |
| 660 | return -ENODEV; |
| 661 | |
| 662 | lxfb_setup(option); |
| 663 | #endif |
| 664 | return pci_register_driver(&lxfb_driver); |
| 665 | } |
| 666 | static void __exit lxfb_cleanup(void) |
| 667 | { |
| 668 | pci_unregister_driver(&lxfb_driver); |
| 669 | } |
| 670 | |
| 671 | module_init(lxfb_init); |
| 672 | module_exit(lxfb_cleanup); |
| 673 | |
| 674 | module_param(mode_option, charp, 0); |
| 675 | MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); |
| 676 | |
Andres Salomon | c805df3 | 2008-04-28 02:15:27 -0700 | [diff] [blame] | 677 | module_param(vram, int, 0); |
| 678 | MODULE_PARM_DESC(vram, "video memory size"); |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 679 | |
Andres Salomon | 564820d | 2008-04-28 02:15:28 -0700 | [diff] [blame] | 680 | module_param(vt_switch, int, 0); |
| 681 | MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); |
| 682 | |
Jordan Crouse | 3968cb49 | 2007-07-31 00:37:40 -0700 | [diff] [blame] | 683 | MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); |
| 684 | MODULE_LICENSE("GPL"); |