Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/igafb.c -- Frame buffer device for IGA 1682 |
| 3 | * |
| 4 | * Copyright (C) 1998 Vladimir Roganov and Gleb Raiko |
| 5 | * |
| 6 | * This driver is partly based on the Frame buffer device for ATI Mach64 |
| 7 | * and partially on VESA-related code. |
| 8 | * |
| 9 | * Copyright (C) 1997-1998 Geert Uytterhoeven |
| 10 | * Copyright (C) 1998 Bernd Harries |
| 11 | * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) |
| 12 | * |
| 13 | * This file is subject to the terms and conditions of the GNU General Public |
| 14 | * License. See the file COPYING in the main directory of this archive for |
| 15 | * more details. |
| 16 | */ |
| 17 | |
| 18 | /****************************************************************************** |
| 19 | |
| 20 | TODO: |
| 21 | Despite of IGA Card has advanced graphic acceleration, |
| 22 | initial version is almost dummy and does not support it. |
| 23 | Support for video modes and acceleration must be added |
| 24 | together with accelerated X-Windows driver implementation. |
| 25 | |
| 26 | Most important thing at this moment is that we have working |
| 27 | JavaEngine1 console & X with new console interface. |
| 28 | |
| 29 | ******************************************************************************/ |
| 30 | |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/errno.h> |
| 34 | #include <linux/string.h> |
| 35 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <linux/slab.h> |
| 37 | #include <linux/vmalloc.h> |
| 38 | #include <linux/delay.h> |
| 39 | #include <linux/interrupt.h> |
| 40 | #include <linux/fb.h> |
| 41 | #include <linux/init.h> |
| 42 | #include <linux/pci.h> |
| 43 | #include <linux/nvram.h> |
| 44 | |
| 45 | #include <asm/io.h> |
| 46 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 47 | #ifdef CONFIG_SPARC |
| 48 | #include <asm/prom.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <asm/pcic.h> |
| 50 | #endif |
| 51 | |
| 52 | #include <video/iga.h> |
| 53 | |
| 54 | struct pci_mmap_map { |
| 55 | unsigned long voff; |
| 56 | unsigned long poff; |
| 57 | unsigned long size; |
| 58 | unsigned long prot_flag; |
| 59 | unsigned long prot_mask; |
| 60 | }; |
| 61 | |
| 62 | struct iga_par { |
| 63 | struct pci_mmap_map *mmap_map; |
| 64 | unsigned long frame_buffer_phys; |
| 65 | unsigned long io_base; |
| 66 | }; |
| 67 | |
| 68 | struct fb_info fb_info; |
| 69 | |
| 70 | struct fb_fix_screeninfo igafb_fix __initdata = { |
| 71 | .id = "IGA 1682", |
| 72 | .type = FB_TYPE_PACKED_PIXELS, |
| 73 | .mmio_len = 1000 |
| 74 | }; |
| 75 | |
| 76 | struct fb_var_screeninfo default_var = { |
| 77 | /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ |
| 78 | .xres = 640, |
| 79 | .yres = 480, |
| 80 | .xres_virtual = 640, |
| 81 | .yres_virtual = 480, |
| 82 | .bits_per_pixel = 8, |
| 83 | .red = {0, 8, 0 }, |
| 84 | .green = {0, 8, 0 }, |
| 85 | .blue = {0, 8, 0 }, |
| 86 | .height = -1, |
| 87 | .width = -1, |
| 88 | .accel_flags = FB_ACCEL_NONE, |
| 89 | .pixclock = 39722, |
| 90 | .left_margin = 48, |
| 91 | .right_margin = 16, |
| 92 | .upper_margin = 33, |
| 93 | .lower_margin = 10, |
| 94 | .hsync_len = 96, |
| 95 | .vsync_len = 2, |
| 96 | .vmode = FB_VMODE_NONINTERLACED |
| 97 | }; |
| 98 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 99 | #ifdef CONFIG_SPARC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | struct fb_var_screeninfo default_var_1024x768 __initdata = { |
| 101 | /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ |
| 102 | .xres = 1024, |
| 103 | .yres = 768, |
| 104 | .xres_virtual = 1024, |
| 105 | .yres_virtual = 768, |
| 106 | .bits_per_pixel = 8, |
| 107 | .red = {0, 8, 0 }, |
| 108 | .green = {0, 8, 0 }, |
| 109 | .blue = {0, 8, 0 }, |
| 110 | .height = -1, |
| 111 | .width = -1, |
| 112 | .accel_flags = FB_ACCEL_NONE, |
| 113 | .pixclock = 12699, |
| 114 | .left_margin = 176, |
| 115 | .right_margin = 16, |
| 116 | .upper_margin = 28, |
| 117 | .lower_margin = 1, |
| 118 | .hsync_len = 96, |
| 119 | .vsync_len = 3, |
| 120 | .vmode = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED |
| 121 | }; |
| 122 | |
| 123 | struct fb_var_screeninfo default_var_1152x900 __initdata = { |
| 124 | /* 1152x900, 76 Hz, Non-Interlaced (110.0 MHz dotclock) */ |
| 125 | .xres = 1152, |
| 126 | .yres = 900, |
| 127 | .xres_virtual = 1152, |
| 128 | .yres_virtual = 900, |
| 129 | .bits_per_pixel = 8, |
| 130 | .red = { 0, 8, 0 }, |
| 131 | .green = { 0, 8, 0 }, |
| 132 | .blue = { 0, 8, 0 }, |
| 133 | .height = -1, |
| 134 | .width = -1, |
| 135 | .accel_flags = FB_ACCEL_NONE, |
| 136 | .pixclock = 9091, |
| 137 | .left_margin = 234, |
| 138 | .right_margin = 24, |
| 139 | .upper_margin = 34, |
| 140 | .lower_margin = 3, |
| 141 | .hsync_len = 100, |
| 142 | .vsync_len = 3, |
| 143 | .vmode = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED |
| 144 | }; |
| 145 | |
| 146 | struct fb_var_screeninfo default_var_1280x1024 __initdata = { |
| 147 | /* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */ |
| 148 | .xres = 1280, |
| 149 | .yres = 1024, |
| 150 | .xres_virtual = 1280, |
| 151 | .yres_virtual = 1024, |
| 152 | .bits_per_pixel = 8, |
| 153 | .red = {0, 8, 0 }, |
| 154 | .green = {0, 8, 0 }, |
| 155 | .blue = {0, 8, 0 }, |
| 156 | .height = -1, |
| 157 | .width = -1, |
| 158 | .accel_flags = 0, |
| 159 | .pixclock = 7408, |
| 160 | .left_margin = 248, |
| 161 | .right_margin = 16, |
| 162 | .upper_margin = 38, |
| 163 | .lower_margin = 1, |
| 164 | .hsync_len = 144, |
| 165 | .vsync_len = 3, |
| 166 | .vmode = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED |
| 167 | }; |
| 168 | |
| 169 | /* |
| 170 | * Memory-mapped I/O functions for Sparc PCI |
| 171 | * |
| 172 | * On sparc we happen to access I/O with memory mapped functions too. |
| 173 | */ |
| 174 | #define pci_inb(par, reg) readb(par->io_base+(reg)) |
| 175 | #define pci_outb(par, val, reg) writeb(val, par->io_base+(reg)) |
| 176 | |
| 177 | static inline unsigned int iga_inb(struct iga_par *par, unsigned int reg, |
| 178 | unsigned int idx) |
| 179 | { |
| 180 | pci_outb(par, idx, reg); |
| 181 | return pci_inb(par, reg + 1); |
| 182 | } |
| 183 | |
| 184 | static inline void iga_outb(struct iga_par *par, unsigned char val, |
| 185 | unsigned int reg, unsigned int idx ) |
| 186 | { |
| 187 | pci_outb(par, idx, reg); |
| 188 | pci_outb(par, val, reg+1); |
| 189 | } |
| 190 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 191 | #endif /* CONFIG_SPARC */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
| 193 | /* |
| 194 | * Very important functionality for the JavaEngine1 computer: |
| 195 | * make screen border black (usign special IGA registers) |
| 196 | */ |
| 197 | static void iga_blank_border(struct iga_par *par) |
| 198 | { |
| 199 | int i; |
| 200 | #if 0 |
| 201 | /* |
| 202 | * PROM does this for us, so keep this code as a reminder |
| 203 | * about required read from 0x3DA and writing of 0x20 in the end. |
| 204 | */ |
| 205 | (void) pci_inb(par, 0x3DA); /* required for every access */ |
| 206 | pci_outb(par, IGA_IDX_VGA_OVERSCAN, IGA_ATTR_CTL); |
| 207 | (void) pci_inb(par, IGA_ATTR_CTL+1); |
| 208 | pci_outb(par, 0x38, IGA_ATTR_CTL); |
| 209 | pci_outb(par, 0x20, IGA_ATTR_CTL); /* re-enable visual */ |
| 210 | #endif |
| 211 | /* |
| 212 | * This does not work as it was designed because the overscan |
| 213 | * color is looked up in the palette. Therefore, under X11 |
| 214 | * overscan changes color. |
| 215 | */ |
| 216 | for (i=0; i < 3; i++) |
| 217 | iga_outb(par, 0, IGA_EXT_CNTRL, IGA_IDX_OVERSCAN_COLOR + i); |
| 218 | } |
| 219 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 220 | #ifdef CONFIG_SPARC |
Christoph Hellwig | 216d526 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 221 | static int igafb_mmap(struct fb_info *info, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | struct vm_area_struct *vma) |
| 223 | { |
| 224 | struct iga_par *par = (struct iga_par *)info->par; |
| 225 | unsigned int size, page, map_size = 0; |
| 226 | unsigned long map_offset = 0; |
| 227 | int i; |
| 228 | |
| 229 | if (!par->mmap_map) |
| 230 | return -ENXIO; |
| 231 | |
| 232 | size = vma->vm_end - vma->vm_start; |
| 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | /* Each page, see which map applies */ |
| 235 | for (page = 0; page < size; ) { |
| 236 | map_size = 0; |
| 237 | for (i = 0; par->mmap_map[i].size; i++) { |
| 238 | unsigned long start = par->mmap_map[i].voff; |
| 239 | unsigned long end = start + par->mmap_map[i].size; |
| 240 | unsigned long offset = (vma->vm_pgoff << PAGE_SHIFT) + page; |
| 241 | |
| 242 | if (start > offset) |
| 243 | continue; |
| 244 | if (offset >= end) |
| 245 | continue; |
| 246 | |
| 247 | map_size = par->mmap_map[i].size - (offset - start); |
| 248 | map_offset = par->mmap_map[i].poff + (offset - start); |
| 249 | break; |
| 250 | } |
| 251 | if (!map_size) { |
| 252 | page += PAGE_SIZE; |
| 253 | continue; |
| 254 | } |
| 255 | if (page + map_size > size) |
| 256 | map_size = size - page; |
| 257 | |
| 258 | pgprot_val(vma->vm_page_prot) &= ~(par->mmap_map[i].prot_mask); |
| 259 | pgprot_val(vma->vm_page_prot) |= par->mmap_map[i].prot_flag; |
| 260 | |
| 261 | if (remap_pfn_range(vma, vma->vm_start + page, |
| 262 | map_offset >> PAGE_SHIFT, map_size, vma->vm_page_prot)) |
| 263 | return -EAGAIN; |
| 264 | |
| 265 | page += map_size; |
| 266 | } |
| 267 | |
| 268 | if (!map_size) |
| 269 | return -EINVAL; |
| 270 | |
| 271 | vma->vm_flags |= VM_IO; |
| 272 | return 0; |
| 273 | } |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 274 | #endif /* CONFIG_SPARC */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | static int igafb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 277 | unsigned blue, unsigned transp, |
| 278 | struct fb_info *info) |
| 279 | { |
| 280 | /* |
| 281 | * Set a single color register. The values supplied are |
| 282 | * already rounded down to the hardware's capabilities |
| 283 | * (according to the entries in the `var' structure). Return |
| 284 | * != 0 for invalid regno. |
| 285 | */ |
| 286 | struct iga_par *par = (struct iga_par *)info->par; |
| 287 | |
| 288 | if (regno >= info->cmap.len) |
| 289 | return 1; |
| 290 | |
| 291 | pci_outb(par, regno, DAC_W_INDEX); |
| 292 | pci_outb(par, red, DAC_DATA); |
| 293 | pci_outb(par, green, DAC_DATA); |
| 294 | pci_outb(par, blue, DAC_DATA); |
| 295 | |
| 296 | if (regno < 16) { |
| 297 | switch (info->var.bits_per_pixel) { |
| 298 | case 16: |
| 299 | ((u16*)(info->pseudo_palette))[regno] = |
| 300 | (regno << 10) | (regno << 5) | regno; |
| 301 | break; |
| 302 | case 24: |
| 303 | ((u32*)(info->pseudo_palette))[regno] = |
| 304 | (regno << 16) | (regno << 8) | regno; |
| 305 | break; |
| 306 | case 32: |
| 307 | { int i; |
| 308 | i = (regno << 8) | regno; |
| 309 | ((u32*)(info->pseudo_palette))[regno] = (i << 16) | i; |
| 310 | } |
| 311 | break; |
| 312 | } |
| 313 | } |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | /* |
| 318 | * Framebuffer option structure |
| 319 | */ |
| 320 | static struct fb_ops igafb_ops = { |
| 321 | .owner = THIS_MODULE, |
| 322 | .fb_setcolreg = igafb_setcolreg, |
| 323 | .fb_fillrect = cfb_fillrect, |
| 324 | .fb_copyarea = cfb_copyarea, |
| 325 | .fb_imageblit = cfb_imageblit, |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 326 | #ifdef CONFIG_SPARC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | .fb_mmap = igafb_mmap, |
| 328 | #endif |
| 329 | }; |
| 330 | |
| 331 | static int __init iga_init(struct fb_info *info, struct iga_par *par) |
| 332 | { |
| 333 | char vramsz = iga_inb(par, IGA_EXT_CNTRL, IGA_IDX_EXT_BUS_CNTL) |
| 334 | & MEM_SIZE_ALIAS; |
| 335 | int video_cmap_len; |
| 336 | |
| 337 | switch (vramsz) { |
| 338 | case MEM_SIZE_1M: |
| 339 | info->fix.smem_len = 0x100000; |
| 340 | break; |
| 341 | case MEM_SIZE_2M: |
| 342 | info->fix.smem_len = 0x200000; |
| 343 | break; |
| 344 | case MEM_SIZE_4M: |
| 345 | case MEM_SIZE_RESERVED: |
| 346 | info->fix.smem_len = 0x400000; |
| 347 | break; |
| 348 | } |
| 349 | |
| 350 | if (info->var.bits_per_pixel > 8) |
| 351 | video_cmap_len = 16; |
| 352 | else |
| 353 | video_cmap_len = 256; |
| 354 | |
| 355 | info->fbops = &igafb_ops; |
| 356 | info->flags = FBINFO_DEFAULT; |
| 357 | |
| 358 | fb_alloc_cmap(&info->cmap, video_cmap_len, 0); |
| 359 | |
| 360 | if (register_framebuffer(info) < 0) |
| 361 | return 0; |
| 362 | |
| 363 | printk("fb%d: %s frame buffer device at 0x%08lx [%dMB VRAM]\n", |
| 364 | info->node, info->fix.id, |
| 365 | par->frame_buffer_phys, info->fix.smem_len >> 20); |
| 366 | |
| 367 | iga_blank_border(par); |
| 368 | return 1; |
| 369 | } |
| 370 | |
| 371 | int __init igafb_init(void) |
| 372 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | struct fb_info *info; |
| 374 | struct pci_dev *pdev; |
| 375 | struct iga_par *par; |
| 376 | unsigned long addr; |
| 377 | int size, iga2000 = 0; |
| 378 | |
| 379 | if (fb_get_options("igafb", NULL)) |
| 380 | return -ENODEV; |
| 381 | |
Alan Cox | af342e9 | 2006-12-08 02:40:18 -0800 | [diff] [blame] | 382 | pdev = pci_get_device(PCI_VENDOR_ID_INTERG, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | PCI_DEVICE_ID_INTERG_1682, 0); |
| 384 | if (pdev == NULL) { |
| 385 | /* |
| 386 | * XXX We tried to use cyber2000fb.c for IGS 2000. |
| 387 | * But it does not initialize the chip in JavaStation-E, alas. |
| 388 | */ |
Alan Cox | af342e9 | 2006-12-08 02:40:18 -0800 | [diff] [blame] | 389 | pdev = pci_get_device(PCI_VENDOR_ID_INTERG, 0x2000, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | if(pdev == NULL) { |
| 391 | return -ENXIO; |
| 392 | } |
| 393 | iga2000 = 1; |
| 394 | } |
Alan Cox | af342e9 | 2006-12-08 02:40:18 -0800 | [diff] [blame] | 395 | /* We leak a reference here but as it cannot be unloaded this is |
| 396 | fine. If you write unload code remember to free it in unload */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
Krzysztof Helt | 100b4a6 | 2009-06-16 15:34:23 -0700 | [diff] [blame] | 398 | size = sizeof(struct iga_par) + sizeof(u32)*16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Krzysztof Helt | 100b4a6 | 2009-06-16 15:34:23 -0700 | [diff] [blame] | 400 | info = framebuffer_alloc(size, &pdev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | if (!info) { |
| 402 | printk("igafb_init: can't alloc fb_info\n"); |
Julia Lawall | 625fcaf | 2008-02-06 01:39:23 -0800 | [diff] [blame] | 403 | pci_dev_put(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | return -ENOMEM; |
| 405 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Krzysztof Helt | 100b4a6 | 2009-06-16 15:34:23 -0700 | [diff] [blame] | 407 | par = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
| 409 | if ((addr = pdev->resource[0].start) == 0) { |
| 410 | printk("igafb_init: no memory start\n"); |
| 411 | kfree(info); |
Julia Lawall | 625fcaf | 2008-02-06 01:39:23 -0800 | [diff] [blame] | 412 | pci_dev_put(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | return -ENXIO; |
| 414 | } |
| 415 | |
| 416 | if ((info->screen_base = ioremap(addr, 1024*1024*2)) == 0) { |
| 417 | printk("igafb_init: can't remap %lx[2M]\n", addr); |
| 418 | kfree(info); |
Julia Lawall | 625fcaf | 2008-02-06 01:39:23 -0800 | [diff] [blame] | 419 | pci_dev_put(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | return -ENXIO; |
| 421 | } |
| 422 | |
| 423 | par->frame_buffer_phys = addr & PCI_BASE_ADDRESS_MEM_MASK; |
| 424 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 425 | #ifdef CONFIG_SPARC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | /* |
| 427 | * The following is sparc specific and this is why: |
| 428 | * |
| 429 | * IGS2000 has its I/O memory mapped and we want |
| 430 | * to generate memory cycles on PCI, e.g. do ioremap(), |
| 431 | * then readb/writeb() as in Documentation/IO-mapping.txt. |
| 432 | * |
| 433 | * IGS1682 is more traditional, it responds to PCI I/O |
| 434 | * cycles, so we want to access it with inb()/outb(). |
| 435 | * |
| 436 | * On sparc, PCIC converts CPU memory access within |
| 437 | * phys window 0x3000xxxx into PCI I/O cycles. Therefore |
| 438 | * we may use readb/writeb to access them with IGS1682. |
| 439 | * |
| 440 | * We do not take io_base_phys from resource[n].start |
| 441 | * on IGS1682 because that chip is BROKEN. It does not |
| 442 | * have a base register for I/O. We just "know" what its |
| 443 | * I/O addresses are. |
| 444 | */ |
| 445 | if (iga2000) { |
| 446 | igafb_fix.mmio_start = par->frame_buffer_phys | 0x00800000; |
| 447 | } else { |
| 448 | igafb_fix.mmio_start = 0x30000000; /* XXX */ |
| 449 | } |
| 450 | if ((par->io_base = (int) ioremap(igafb_fix.mmio_start, igafb_fix.smem_len)) == 0) { |
| 451 | printk("igafb_init: can't remap %lx[4K]\n", igafb_fix.mmio_start); |
| 452 | iounmap((void *)info->screen_base); |
| 453 | kfree(info); |
Julia Lawall | 625fcaf | 2008-02-06 01:39:23 -0800 | [diff] [blame] | 454 | pci_dev_put(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | return -ENXIO; |
| 456 | } |
| 457 | |
| 458 | /* |
| 459 | * Figure mmap addresses from PCI config space. |
| 460 | * We need two regions: for video memory and for I/O ports. |
| 461 | * Later one can add region for video coprocessor registers. |
| 462 | * However, mmap routine loops until size != 0, so we put |
| 463 | * one additional region with size == 0. |
| 464 | */ |
| 465 | |
Jiri Slaby | f5610b9 | 2007-02-12 00:55:12 -0800 | [diff] [blame] | 466 | par->mmap_map = kzalloc(4 * sizeof(*par->mmap_map), GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | if (!par->mmap_map) { |
| 468 | printk("igafb_init: can't alloc mmap_map\n"); |
| 469 | iounmap((void *)par->io_base); |
| 470 | iounmap(info->screen_base); |
| 471 | kfree(info); |
Julia Lawall | 625fcaf | 2008-02-06 01:39:23 -0800 | [diff] [blame] | 472 | pci_dev_put(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | return -ENOMEM; |
| 474 | } |
| 475 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | /* |
| 477 | * Set default vmode and cmode from PROM properties. |
| 478 | */ |
| 479 | { |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 480 | struct device_node *dp = pci_device_to_OF_node(pdev); |
| 481 | int node = dp->node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | int width = prom_getintdefault(node, "width", 1024); |
| 483 | int height = prom_getintdefault(node, "height", 768); |
| 484 | int depth = prom_getintdefault(node, "depth", 8); |
| 485 | switch (width) { |
| 486 | case 1024: |
| 487 | if (height == 768) |
| 488 | default_var = default_var_1024x768; |
| 489 | break; |
| 490 | case 1152: |
| 491 | if (height == 900) |
| 492 | default_var = default_var_1152x900; |
| 493 | break; |
| 494 | case 1280: |
| 495 | if (height == 1024) |
| 496 | default_var = default_var_1280x1024; |
| 497 | break; |
| 498 | default: |
| 499 | break; |
| 500 | } |
| 501 | |
| 502 | switch (depth) { |
| 503 | case 8: |
| 504 | default_var.bits_per_pixel = 8; |
| 505 | break; |
| 506 | case 16: |
| 507 | default_var.bits_per_pixel = 16; |
| 508 | break; |
| 509 | case 24: |
| 510 | default_var.bits_per_pixel = 24; |
| 511 | break; |
| 512 | case 32: |
| 513 | default_var.bits_per_pixel = 32; |
| 514 | break; |
| 515 | default: |
| 516 | break; |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | #endif |
| 521 | igafb_fix.smem_start = (unsigned long) info->screen_base; |
| 522 | igafb_fix.line_length = default_var.xres*(default_var.bits_per_pixel/8); |
| 523 | igafb_fix.visual = default_var.bits_per_pixel <= 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; |
| 524 | |
| 525 | info->var = default_var; |
| 526 | info->fix = igafb_fix; |
| 527 | info->pseudo_palette = (void *)(par + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
| 529 | if (!iga_init(info, par)) { |
| 530 | iounmap((void *)par->io_base); |
| 531 | iounmap(info->screen_base); |
| 532 | kfree(par->mmap_map); |
| 533 | kfree(info); |
Kulikov Vasiliy | 527dcf4 | 2010-08-10 18:02:47 -0700 | [diff] [blame^] | 534 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | } |
| 536 | |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 537 | #ifdef CONFIG_SPARC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | /* |
| 539 | * Add /dev/fb mmap values. |
| 540 | */ |
| 541 | |
| 542 | /* First region is for video memory */ |
| 543 | par->mmap_map[0].voff = 0x0; |
| 544 | par->mmap_map[0].poff = par->frame_buffer_phys & PAGE_MASK; |
| 545 | par->mmap_map[0].size = info->fix.smem_len & PAGE_MASK; |
| 546 | par->mmap_map[0].prot_mask = SRMMU_CACHE; |
| 547 | par->mmap_map[0].prot_flag = SRMMU_WRITE; |
| 548 | |
| 549 | /* Second region is for I/O ports */ |
| 550 | par->mmap_map[1].voff = par->frame_buffer_phys & PAGE_MASK; |
| 551 | par->mmap_map[1].poff = info->fix.smem_start & PAGE_MASK; |
| 552 | par->mmap_map[1].size = PAGE_SIZE * 2; /* X wants 2 pages */ |
| 553 | par->mmap_map[1].prot_mask = SRMMU_CACHE; |
| 554 | par->mmap_map[1].prot_flag = SRMMU_WRITE; |
David S. Miller | 9b1caaf | 2007-02-28 17:05:06 -0800 | [diff] [blame] | 555 | #endif /* CONFIG_SPARC */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | int __init igafb_setup(char *options) |
| 561 | { |
| 562 | char *this_opt; |
| 563 | |
| 564 | if (!options || !*options) |
| 565 | return 0; |
| 566 | |
| 567 | while ((this_opt = strsep(&options, ",")) != NULL) { |
| 568 | } |
| 569 | return 0; |
| 570 | } |
| 571 | |
| 572 | module_init(igafb_init); |
| 573 | MODULE_LICENSE("GPL"); |
Ben Collins | b023429 | 2006-10-18 08:50:49 -0400 | [diff] [blame] | 574 | static struct pci_device_id igafb_pci_tbl[] __devinitdata = { |
| 575 | { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_1682, |
| 576 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 577 | { } |
| 578 | }; |
| 579 | |
| 580 | MODULE_DEVICE_TABLE(pci, igafb_pci_tbl); |