Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * drivers/video/chipsfb.c -- frame buffer device for |
| 3 | * Chips & Technologies 65550 chip. |
| 4 | * |
| 5 | * Copyright (C) 1998-2002 Paul Mackerras |
| 6 | * |
| 7 | * This file is derived from the Powermac "chips" driver: |
| 8 | * Copyright (C) 1997 Fabio Riccardi. |
| 9 | * And from the frame buffer device for Open Firmware-initialized devices: |
| 10 | * Copyright (C) 1997 Geert Uytterhoeven. |
| 11 | * |
| 12 | * This file is subject to the terms and conditions of the GNU General Public |
| 13 | * License. See the file COPYING in the main directory of this archive for |
| 14 | * more details. |
| 15 | */ |
| 16 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/module.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/errno.h> |
| 20 | #include <linux/string.h> |
| 21 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/slab.h> |
| 23 | #include <linux/vmalloc.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/fb.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/pci.h> |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 29 | #include <linux/console.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <asm/io.h> |
| 31 | |
| 32 | #ifdef CONFIG_PMAC_BACKLIGHT |
| 33 | #include <asm/backlight.h> |
| 34 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
| 36 | /* |
| 37 | * Since we access the display with inb/outb to fixed port numbers, |
| 38 | * we can only handle one 6555x chip. -- paulus |
| 39 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #define write_ind(num, val, ap, dp) do { \ |
| 41 | outb((num), (ap)); outb((val), (dp)); \ |
| 42 | } while (0) |
| 43 | #define read_ind(num, var, ap, dp) do { \ |
| 44 | outb((num), (ap)); var = inb((dp)); \ |
| 45 | } while (0) |
| 46 | |
| 47 | /* extension registers */ |
| 48 | #define write_xr(num, val) write_ind(num, val, 0x3d6, 0x3d7) |
| 49 | #define read_xr(num, var) read_ind(num, var, 0x3d6, 0x3d7) |
| 50 | /* flat panel registers */ |
| 51 | #define write_fr(num, val) write_ind(num, val, 0x3d0, 0x3d1) |
| 52 | #define read_fr(num, var) read_ind(num, var, 0x3d0, 0x3d1) |
| 53 | /* CRTC registers */ |
| 54 | #define write_cr(num, val) write_ind(num, val, 0x3d4, 0x3d5) |
| 55 | #define read_cr(num, var) read_ind(num, var, 0x3d4, 0x3d5) |
| 56 | /* graphics registers */ |
| 57 | #define write_gr(num, val) write_ind(num, val, 0x3ce, 0x3cf) |
| 58 | #define read_gr(num, var) read_ind(num, var, 0x3ce, 0x3cf) |
| 59 | /* sequencer registers */ |
| 60 | #define write_sr(num, val) write_ind(num, val, 0x3c4, 0x3c5) |
| 61 | #define read_sr(num, var) read_ind(num, var, 0x3c4, 0x3c5) |
| 62 | /* attribute registers - slightly strange */ |
| 63 | #define write_ar(num, val) do { \ |
| 64 | inb(0x3da); write_ind(num, val, 0x3c0, 0x3c0); \ |
| 65 | } while (0) |
| 66 | #define read_ar(num, var) do { \ |
| 67 | inb(0x3da); read_ind(num, var, 0x3c0, 0x3c1); \ |
| 68 | } while (0) |
| 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | /* |
| 71 | * Exported functions |
| 72 | */ |
| 73 | int chips_init(void); |
| 74 | |
| 75 | static int chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *); |
| 76 | static int chipsfb_check_var(struct fb_var_screeninfo *var, |
| 77 | struct fb_info *info); |
| 78 | static int chipsfb_set_par(struct fb_info *info); |
| 79 | static int chipsfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 80 | u_int transp, struct fb_info *info); |
| 81 | static int chipsfb_blank(int blank, struct fb_info *info); |
| 82 | |
| 83 | static struct fb_ops chipsfb_ops = { |
| 84 | .owner = THIS_MODULE, |
| 85 | .fb_check_var = chipsfb_check_var, |
| 86 | .fb_set_par = chipsfb_set_par, |
| 87 | .fb_setcolreg = chipsfb_setcolreg, |
| 88 | .fb_blank = chipsfb_blank, |
| 89 | .fb_fillrect = cfb_fillrect, |
| 90 | .fb_copyarea = cfb_copyarea, |
| 91 | .fb_imageblit = cfb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | }; |
| 93 | |
| 94 | static int chipsfb_check_var(struct fb_var_screeninfo *var, |
| 95 | struct fb_info *info) |
| 96 | { |
| 97 | if (var->xres > 800 || var->yres > 600 |
| 98 | || var->xres_virtual > 800 || var->yres_virtual > 600 |
| 99 | || (var->bits_per_pixel != 8 && var->bits_per_pixel != 16) |
| 100 | || var->nonstd |
| 101 | || (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) |
| 102 | return -EINVAL; |
| 103 | |
| 104 | var->xres = var->xres_virtual = 800; |
| 105 | var->yres = var->yres_virtual = 600; |
| 106 | |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | static int chipsfb_set_par(struct fb_info *info) |
| 111 | { |
| 112 | if (info->var.bits_per_pixel == 16) { |
| 113 | write_cr(0x13, 200); // Set line length (doublewords) |
| 114 | write_xr(0x81, 0x14); // 15 bit (555) color mode |
| 115 | write_xr(0x82, 0x00); // Disable palettes |
| 116 | write_xr(0x20, 0x10); // 16 bit blitter mode |
| 117 | |
| 118 | info->fix.line_length = 800*2; |
| 119 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 120 | |
| 121 | info->var.red.offset = 10; |
| 122 | info->var.green.offset = 5; |
| 123 | info->var.blue.offset = 0; |
| 124 | info->var.red.length = info->var.green.length = |
| 125 | info->var.blue.length = 5; |
| 126 | |
| 127 | } else { |
| 128 | /* p->var.bits_per_pixel == 8 */ |
| 129 | write_cr(0x13, 100); // Set line length (doublewords) |
| 130 | write_xr(0x81, 0x12); // 8 bit color mode |
| 131 | write_xr(0x82, 0x08); // Graphics gamma enable |
| 132 | write_xr(0x20, 0x00); // 8 bit blitter mode |
| 133 | |
| 134 | info->fix.line_length = 800; |
| 135 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 136 | |
| 137 | info->var.red.offset = info->var.green.offset = |
| 138 | info->var.blue.offset = 0; |
| 139 | info->var.red.length = info->var.green.length = |
| 140 | info->var.blue.length = 8; |
| 141 | |
| 142 | } |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | static int chipsfb_blank(int blank, struct fb_info *info) |
| 147 | { |
| 148 | #ifdef CONFIG_PMAC_BACKLIGHT |
Michael Hanselmann | 5474c12 | 2006-06-25 05:47:08 -0700 | [diff] [blame] | 149 | mutex_lock(&pmac_backlight_mutex); |
| 150 | |
| 151 | if (pmac_backlight) { |
Michael Hanselmann | 5474c12 | 2006-06-25 05:47:08 -0700 | [diff] [blame] | 152 | /* used to disable backlight only for blank > 1, but it seems |
| 153 | * useful at blank = 1 too (saves battery, extends backlight |
| 154 | * life) |
| 155 | */ |
Michael Hanselmann | e01af03 | 2006-07-10 04:44:45 -0700 | [diff] [blame] | 156 | down(&pmac_backlight->sem); |
Michael Hanselmann | 5474c12 | 2006-06-25 05:47:08 -0700 | [diff] [blame] | 157 | if (blank) |
| 158 | pmac_backlight->props->power = FB_BLANK_POWERDOWN; |
| 159 | else |
| 160 | pmac_backlight->props->power = FB_BLANK_UNBLANK; |
| 161 | pmac_backlight->props->update_status(pmac_backlight); |
| 162 | up(&pmac_backlight->sem); |
| 163 | } |
| 164 | |
| 165 | mutex_unlock(&pmac_backlight_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | #endif /* CONFIG_PMAC_BACKLIGHT */ |
| 167 | |
| 168 | return 1; /* get fb_blank to set the colormap to all black */ |
| 169 | } |
| 170 | |
| 171 | static int chipsfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 172 | u_int transp, struct fb_info *info) |
| 173 | { |
| 174 | if (regno > 255) |
| 175 | return 1; |
| 176 | red >>= 8; |
| 177 | green >>= 8; |
| 178 | blue >>= 8; |
| 179 | outb(regno, 0x3c8); |
| 180 | udelay(1); |
| 181 | outb(red, 0x3c9); |
| 182 | outb(green, 0x3c9); |
| 183 | outb(blue, 0x3c9); |
| 184 | |
| 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | struct chips_init_reg { |
| 189 | unsigned char addr; |
| 190 | unsigned char data; |
| 191 | }; |
| 192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | static struct chips_init_reg chips_init_sr[] = { |
| 194 | { 0x00, 0x03 }, |
| 195 | { 0x01, 0x01 }, |
| 196 | { 0x02, 0x0f }, |
| 197 | { 0x04, 0x0e } |
| 198 | }; |
| 199 | |
| 200 | static struct chips_init_reg chips_init_gr[] = { |
| 201 | { 0x05, 0x00 }, |
| 202 | { 0x06, 0x0d }, |
| 203 | { 0x08, 0xff } |
| 204 | }; |
| 205 | |
| 206 | static struct chips_init_reg chips_init_ar[] = { |
| 207 | { 0x10, 0x01 }, |
| 208 | { 0x12, 0x0f }, |
| 209 | { 0x13, 0x00 } |
| 210 | }; |
| 211 | |
| 212 | static struct chips_init_reg chips_init_cr[] = { |
| 213 | { 0x00, 0x7f }, |
| 214 | { 0x01, 0x63 }, |
| 215 | { 0x02, 0x63 }, |
| 216 | { 0x03, 0x83 }, |
| 217 | { 0x04, 0x66 }, |
| 218 | { 0x05, 0x10 }, |
| 219 | { 0x06, 0x72 }, |
| 220 | { 0x07, 0x3e }, |
| 221 | { 0x08, 0x00 }, |
| 222 | { 0x09, 0x40 }, |
| 223 | { 0x0c, 0x00 }, |
| 224 | { 0x0d, 0x00 }, |
| 225 | { 0x10, 0x59 }, |
| 226 | { 0x11, 0x0d }, |
| 227 | { 0x12, 0x57 }, |
| 228 | { 0x13, 0x64 }, |
| 229 | { 0x14, 0x00 }, |
| 230 | { 0x15, 0x57 }, |
| 231 | { 0x16, 0x73 }, |
| 232 | { 0x17, 0xe3 }, |
| 233 | { 0x18, 0xff }, |
| 234 | { 0x30, 0x02 }, |
| 235 | { 0x31, 0x02 }, |
| 236 | { 0x32, 0x02 }, |
| 237 | { 0x33, 0x02 }, |
| 238 | { 0x40, 0x00 }, |
| 239 | { 0x41, 0x00 }, |
| 240 | { 0x40, 0x80 } |
| 241 | }; |
| 242 | |
| 243 | static struct chips_init_reg chips_init_fr[] = { |
| 244 | { 0x01, 0x02 }, |
| 245 | { 0x03, 0x08 }, |
| 246 | { 0x04, 0x81 }, |
| 247 | { 0x05, 0x21 }, |
| 248 | { 0x08, 0x0c }, |
| 249 | { 0x0a, 0x74 }, |
| 250 | { 0x0b, 0x11 }, |
| 251 | { 0x10, 0x0c }, |
| 252 | { 0x11, 0xe0 }, |
| 253 | /* { 0x12, 0x40 }, -- 3400 needs 40, 2400 needs 48, no way to tell */ |
| 254 | { 0x20, 0x63 }, |
| 255 | { 0x21, 0x68 }, |
| 256 | { 0x22, 0x19 }, |
| 257 | { 0x23, 0x7f }, |
| 258 | { 0x24, 0x68 }, |
| 259 | { 0x26, 0x00 }, |
| 260 | { 0x27, 0x0f }, |
| 261 | { 0x30, 0x57 }, |
| 262 | { 0x31, 0x58 }, |
| 263 | { 0x32, 0x0d }, |
| 264 | { 0x33, 0x72 }, |
| 265 | { 0x34, 0x02 }, |
| 266 | { 0x35, 0x22 }, |
| 267 | { 0x36, 0x02 }, |
| 268 | { 0x37, 0x00 } |
| 269 | }; |
| 270 | |
| 271 | static struct chips_init_reg chips_init_xr[] = { |
| 272 | { 0xce, 0x00 }, /* set default memory clock */ |
| 273 | { 0xcc, 0x43 }, /* memory clock ratio */ |
| 274 | { 0xcd, 0x18 }, |
| 275 | { 0xce, 0xa1 }, |
| 276 | { 0xc8, 0x84 }, |
| 277 | { 0xc9, 0x0a }, |
| 278 | { 0xca, 0x00 }, |
| 279 | { 0xcb, 0x20 }, |
| 280 | { 0xcf, 0x06 }, |
| 281 | { 0xd0, 0x0e }, |
| 282 | { 0x09, 0x01 }, |
| 283 | { 0x0a, 0x02 }, |
| 284 | { 0x0b, 0x01 }, |
| 285 | { 0x20, 0x00 }, |
| 286 | { 0x40, 0x03 }, |
| 287 | { 0x41, 0x01 }, |
| 288 | { 0x42, 0x00 }, |
| 289 | { 0x80, 0x82 }, |
| 290 | { 0x81, 0x12 }, |
| 291 | { 0x82, 0x08 }, |
| 292 | { 0xa0, 0x00 }, |
| 293 | { 0xa8, 0x00 } |
| 294 | }; |
| 295 | |
| 296 | static void __init chips_hw_init(void) |
| 297 | { |
| 298 | int i; |
| 299 | |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 300 | for (i = 0; i < ARRAY_SIZE(chips_init_xr); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | write_xr(chips_init_xr[i].addr, chips_init_xr[i].data); |
| 302 | outb(0x29, 0x3c2); /* set misc output reg */ |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 303 | for (i = 0; i < ARRAY_SIZE(chips_init_sr); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | write_sr(chips_init_sr[i].addr, chips_init_sr[i].data); |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 305 | for (i = 0; i < ARRAY_SIZE(chips_init_gr); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | write_gr(chips_init_gr[i].addr, chips_init_gr[i].data); |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 307 | for (i = 0; i < ARRAY_SIZE(chips_init_ar); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | write_ar(chips_init_ar[i].addr, chips_init_ar[i].data); |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 309 | for (i = 0; i < ARRAY_SIZE(chips_init_cr); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | write_cr(chips_init_cr[i].addr, chips_init_cr[i].data); |
Tobias Klauser | d1ae418 | 2006-03-27 01:17:39 -0800 | [diff] [blame] | 311 | for (i = 0; i < ARRAY_SIZE(chips_init_fr); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | write_fr(chips_init_fr[i].addr, chips_init_fr[i].data); |
| 313 | } |
| 314 | |
| 315 | static struct fb_fix_screeninfo chipsfb_fix __initdata = { |
| 316 | .id = "C&T 65550", |
| 317 | .type = FB_TYPE_PACKED_PIXELS, |
| 318 | .visual = FB_VISUAL_PSEUDOCOLOR, |
| 319 | .accel = FB_ACCEL_NONE, |
| 320 | .line_length = 800, |
| 321 | |
| 322 | // FIXME: Assumes 1MB frame buffer, but 65550 supports 1MB or 2MB. |
| 323 | // * "3500" PowerBook G3 (the original PB G3) has 2MB. |
| 324 | // * 2400 has 1MB composed of 2 Mitsubishi M5M4V4265CTP DRAM chips. |
| 325 | // Motherboard actually supports 2MB -- there are two blank locations |
| 326 | // for a second pair of DRAMs. (Thanks, Apple!) |
| 327 | // * 3400 has 1MB (I think). Don't know if it's expandable. |
| 328 | // -- Tim Seufert |
| 329 | .smem_len = 0x100000, /* 1MB */ |
| 330 | }; |
| 331 | |
| 332 | static struct fb_var_screeninfo chipsfb_var __initdata = { |
| 333 | .xres = 800, |
| 334 | .yres = 600, |
| 335 | .xres_virtual = 800, |
| 336 | .yres_virtual = 600, |
| 337 | .bits_per_pixel = 8, |
| 338 | .red = { .length = 8 }, |
| 339 | .green = { .length = 8 }, |
| 340 | .blue = { .length = 8 }, |
| 341 | .height = -1, |
| 342 | .width = -1, |
| 343 | .vmode = FB_VMODE_NONINTERLACED, |
| 344 | .pixclock = 10000, |
| 345 | .left_margin = 16, |
| 346 | .right_margin = 16, |
| 347 | .upper_margin = 16, |
| 348 | .lower_margin = 16, |
| 349 | .hsync_len = 8, |
| 350 | .vsync_len = 8, |
| 351 | }; |
| 352 | |
| 353 | static void __init init_chips(struct fb_info *p, unsigned long addr) |
| 354 | { |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 355 | memset(p->screen_base, 0, 0x100000); |
| 356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | p->fix = chipsfb_fix; |
| 358 | p->fix.smem_start = addr; |
| 359 | |
| 360 | p->var = chipsfb_var; |
| 361 | |
| 362 | p->fbops = &chipsfb_ops; |
| 363 | p->flags = FBINFO_DEFAULT; |
| 364 | |
| 365 | fb_alloc_cmap(&p->cmap, 256, 0); |
| 366 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | chips_hw_init(); |
| 368 | } |
| 369 | |
| 370 | static int __devinit |
| 371 | chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent) |
| 372 | { |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 373 | struct fb_info *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | unsigned long addr, size; |
| 375 | unsigned short cmd; |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 376 | int rc = -ENODEV; |
| 377 | |
| 378 | if (pci_enable_device(dp) < 0) { |
| 379 | dev_err(&dp->dev, "Cannot enable PCI device\n"); |
| 380 | goto err_out; |
| 381 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | |
| 383 | if ((dp->resource[0].flags & IORESOURCE_MEM) == 0) |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 384 | goto err_disable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | addr = pci_resource_start(dp, 0); |
| 386 | size = pci_resource_len(dp, 0); |
| 387 | if (addr == 0) |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 388 | goto err_disable; |
| 389 | |
| 390 | p = framebuffer_alloc(0, &dp->dev); |
| 391 | if (p == NULL) { |
| 392 | dev_err(&dp->dev, "Cannot allocate framebuffer structure\n"); |
| 393 | rc = -ENOMEM; |
| 394 | goto err_disable; |
| 395 | } |
| 396 | |
| 397 | if (pci_request_region(dp, 0, "chipsfb") != 0) { |
| 398 | dev_err(&dp->dev, "Cannot request framebuffer\n"); |
| 399 | rc = -EBUSY; |
| 400 | goto err_release_fb; |
| 401 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | |
| 403 | #ifdef __BIG_ENDIAN |
| 404 | addr += 0x800000; // Use big-endian aperture |
| 405 | #endif |
| 406 | |
| 407 | /* we should use pci_enable_device here, but, |
| 408 | the device doesn't declare its I/O ports in its BARs |
| 409 | so pci_enable_device won't turn on I/O responses */ |
| 410 | pci_read_config_word(dp, PCI_COMMAND, &cmd); |
| 411 | cmd |= 3; /* enable memory and IO space */ |
| 412 | pci_write_config_word(dp, PCI_COMMAND, cmd); |
| 413 | |
| 414 | #ifdef CONFIG_PMAC_BACKLIGHT |
| 415 | /* turn on the backlight */ |
Michael Hanselmann | 5474c12 | 2006-06-25 05:47:08 -0700 | [diff] [blame] | 416 | mutex_lock(&pmac_backlight_mutex); |
| 417 | if (pmac_backlight) { |
| 418 | down(&pmac_backlight->sem); |
| 419 | pmac_backlight->props->power = FB_BLANK_UNBLANK; |
| 420 | pmac_backlight->props->update_status(pmac_backlight); |
| 421 | up(&pmac_backlight->sem); |
| 422 | } |
| 423 | mutex_unlock(&pmac_backlight_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | #endif /* CONFIG_PMAC_BACKLIGHT */ |
| 425 | |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 426 | #ifdef CONFIG_PPC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | p->screen_base = __ioremap(addr, 0x200000, _PAGE_NO_CACHE); |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 428 | #else |
| 429 | p->screen_base = ioremap(addr, 0x200000); |
| 430 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | if (p->screen_base == NULL) { |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 432 | dev_err(&dp->dev, "Cannot map framebuffer\n"); |
| 433 | rc = -ENOMEM; |
| 434 | goto err_release_pci; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | pci_set_drvdata(dp, p); |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 438 | p->device = &dp->dev; |
| 439 | |
| 440 | init_chips(p, addr); |
| 441 | |
| 442 | if (register_framebuffer(p) < 0) { |
| 443 | dev_err(&dp->dev,"C&T 65550 framebuffer failed to register\n"); |
| 444 | goto err_unmap; |
| 445 | } |
| 446 | |
| 447 | dev_info(&dp->dev,"fb%d: Chips 65550 frame buffer" |
| 448 | " (%dK RAM detected)\n", |
| 449 | p->node, p->fix.smem_len / 1024); |
| 450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | return 0; |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 452 | |
| 453 | err_unmap: |
| 454 | iounmap(p->screen_base); |
| 455 | err_release_pci: |
| 456 | pci_release_region(dp, 0); |
| 457 | err_release_fb: |
| 458 | framebuffer_release(p); |
| 459 | err_disable: |
| 460 | err_out: |
| 461 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | static void __devexit chipsfb_remove(struct pci_dev *dp) |
| 465 | { |
| 466 | struct fb_info *p = pci_get_drvdata(dp); |
| 467 | |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 468 | if (p->screen_base == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | return; |
| 470 | unregister_framebuffer(p); |
| 471 | iounmap(p->screen_base); |
| 472 | p->screen_base = NULL; |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 473 | pci_release_region(dp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | } |
| 475 | |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 476 | #ifdef CONFIG_PM |
| 477 | static int chipsfb_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
| 478 | { |
| 479 | struct fb_info *p = pci_get_drvdata(pdev); |
| 480 | |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 481 | if (state.event == pdev->dev.power.power_state.event) |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 482 | return 0; |
Pavel Machek | ca078ba | 2005-09-03 15:56:57 -0700 | [diff] [blame] | 483 | if (state.event != PM_SUSPEND_MEM) |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 484 | goto done; |
| 485 | |
| 486 | acquire_console_sem(); |
| 487 | chipsfb_blank(1, p); |
| 488 | fb_set_suspend(p, 1); |
| 489 | release_console_sem(); |
| 490 | done: |
| 491 | pdev->dev.power.power_state = state; |
| 492 | return 0; |
| 493 | } |
| 494 | |
| 495 | static int chipsfb_pci_resume(struct pci_dev *pdev) |
| 496 | { |
| 497 | struct fb_info *p = pci_get_drvdata(pdev); |
| 498 | |
| 499 | acquire_console_sem(); |
| 500 | fb_set_suspend(p, 0); |
| 501 | chipsfb_blank(0, p); |
| 502 | release_console_sem(); |
| 503 | |
| 504 | pdev->dev.power.power_state = PMSG_ON; |
| 505 | return 0; |
| 506 | } |
| 507 | #endif /* CONFIG_PM */ |
| 508 | |
| 509 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | static struct pci_device_id chipsfb_pci_tbl[] = { |
| 511 | { PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_65550, PCI_ANY_ID, PCI_ANY_ID }, |
| 512 | { 0 } |
| 513 | }; |
| 514 | |
| 515 | MODULE_DEVICE_TABLE(pci, chipsfb_pci_tbl); |
| 516 | |
| 517 | static struct pci_driver chipsfb_driver = { |
| 518 | .name = "chipsfb", |
| 519 | .id_table = chipsfb_pci_tbl, |
| 520 | .probe = chipsfb_pci_init, |
| 521 | .remove = __devexit_p(chipsfb_remove), |
Benjamin Herrenschmidt | 8c87093 | 2005-06-27 14:36:34 -0700 | [diff] [blame] | 522 | #ifdef CONFIG_PM |
| 523 | .suspend = chipsfb_pci_suspend, |
| 524 | .resume = chipsfb_pci_resume, |
| 525 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | }; |
| 527 | |
| 528 | int __init chips_init(void) |
| 529 | { |
| 530 | if (fb_get_options("chipsfb", NULL)) |
| 531 | return -ENODEV; |
| 532 | |
| 533 | return pci_register_driver(&chipsfb_driver); |
| 534 | } |
| 535 | |
| 536 | module_init(chips_init); |
| 537 | |
| 538 | static void __exit chipsfb_exit(void) |
| 539 | { |
| 540 | pci_unregister_driver(&chipsfb_driver); |
| 541 | } |
| 542 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | MODULE_LICENSE("GPL"); |