Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * drivers/video/cirrusfb.c - driver for Cirrus Logic chipsets |
| 3 | * |
| 4 | * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com> |
| 5 | * |
| 6 | * Contributors (thanks, all!) |
| 7 | * |
| 8 | * David Eger: |
| 9 | * Overhaul for Linux 2.6 |
| 10 | * |
| 11 | * Jeff Rugen: |
| 12 | * Major contributions; Motorola PowerStack (PPC and PCI) support, |
| 13 | * GD54xx, 1280x1024 mode support, change MCLK based on VCLK. |
| 14 | * |
| 15 | * Geert Uytterhoeven: |
| 16 | * Excellent code review. |
| 17 | * |
| 18 | * Lars Hecking: |
| 19 | * Amiga updates and testing. |
| 20 | * |
| 21 | * Original cirrusfb author: Frank Neumann |
| 22 | * |
| 23 | * Based on retz3fb.c and cirrusfb.c: |
| 24 | * Copyright (C) 1997 Jes Sorensen |
| 25 | * Copyright (C) 1996 Frank Neumann |
| 26 | * |
| 27 | *************************************************************** |
| 28 | * |
| 29 | * Format this code with GNU indent '-kr -i8 -pcs' options. |
| 30 | * |
| 31 | * This file is subject to the terms and conditions of the GNU General Public |
| 32 | * License. See the file COPYING in the main directory of this archive |
| 33 | * for more details. |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #define CIRRUSFB_VERSION "2.0-pre2" |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <linux/module.h> |
| 40 | #include <linux/kernel.h> |
| 41 | #include <linux/errno.h> |
| 42 | #include <linux/string.h> |
| 43 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <linux/slab.h> |
| 45 | #include <linux/delay.h> |
| 46 | #include <linux/fb.h> |
| 47 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <asm/pgtable.h> |
| 49 | |
| 50 | #ifdef CONFIG_ZORRO |
| 51 | #include <linux/zorro.h> |
| 52 | #endif |
| 53 | #ifdef CONFIG_PCI |
| 54 | #include <linux/pci.h> |
| 55 | #endif |
| 56 | #ifdef CONFIG_AMIGA |
| 57 | #include <asm/amigahw.h> |
| 58 | #endif |
| 59 | #ifdef CONFIG_PPC_PREP |
Benjamin Herrenschmidt | e822250 | 2006-03-28 23:15:54 +1100 | [diff] [blame] | 60 | #include <asm/machdep.h> |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 61 | #define isPReP machine_is(prep) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #else |
| 63 | #define isPReP 0 |
| 64 | #endif |
| 65 | |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 66 | #include <video/vga.h> |
| 67 | #include <video/cirrus.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | /***************************************************************** |
| 70 | * |
| 71 | * debugging and utility macros |
| 72 | * |
| 73 | */ |
| 74 | |
| 75 | /* enable debug output? */ |
| 76 | /* #define CIRRUSFB_DEBUG 1 */ |
| 77 | |
| 78 | /* disable runtime assertions? */ |
| 79 | /* #define CIRRUSFB_NDEBUG */ |
| 80 | |
| 81 | /* debug output */ |
| 82 | #ifdef CIRRUSFB_DEBUG |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 83 | #define DPRINTK(fmt, args...) \ |
Harvey Harrison | 5ae1217 | 2008-04-28 02:15:47 -0700 | [diff] [blame] | 84 | printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | #else |
| 86 | #define DPRINTK(fmt, args...) |
| 87 | #endif |
| 88 | |
| 89 | /* debugging assertions */ |
| 90 | #ifndef CIRRUSFB_NDEBUG |
| 91 | #define assert(expr) \ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 92 | if (!(expr)) { \ |
| 93 | printk("Assertion failed! %s,%s,%s,line=%d\n", \ |
Harvey Harrison | 5ae1217 | 2008-04-28 02:15:47 -0700 | [diff] [blame] | 94 | #expr, __FILE__, __func__, __LINE__); \ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 95 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | #else |
| 97 | #define assert(expr) |
| 98 | #endif |
| 99 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 100 | #define MB_ (1024 * 1024) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | /***************************************************************** |
| 103 | * |
| 104 | * chipset information |
| 105 | * |
| 106 | */ |
| 107 | |
| 108 | /* board types */ |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 109 | enum cirrus_board { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | BT_NONE = 0, |
| 111 | BT_SD64, |
| 112 | BT_PICCOLO, |
| 113 | BT_PICASSO, |
| 114 | BT_SPECTRUM, |
| 115 | BT_PICASSO4, /* GD5446 */ |
| 116 | BT_ALPINE, /* GD543x/4x */ |
| 117 | BT_GD5480, |
| 118 | BT_LAGUNA, /* GD546x */ |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 119 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | /* |
| 122 | * per-board-type information, used for enumerating and abstracting |
| 123 | * chip-specific information |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 124 | * NOTE: MUST be in the same order as enum cirrus_board in order to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | * use direct indexing on this array |
| 126 | * NOTE: '__initdata' cannot be used as some of this info |
| 127 | * is required at runtime. Maybe separate into an init-only and |
| 128 | * a run-time table? |
| 129 | */ |
| 130 | static const struct cirrusfb_board_info_rec { |
| 131 | char *name; /* ASCII name of chipset */ |
| 132 | long maxclock[5]; /* maximum video clock */ |
| 133 | /* for 1/4bpp, 8bpp 15/16bpp, 24bpp, 32bpp - numbers from xorg code */ |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 134 | bool init_sr07 : 1; /* init SR07 during init_vgachip() */ |
| 135 | bool init_sr1f : 1; /* write SR1F during init_vgachip() */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 136 | /* construct bit 19 of screen start address */ |
| 137 | bool scrn_start_bit19 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | /* initial SR07 value, then for each mode */ |
| 140 | unsigned char sr07; |
| 141 | unsigned char sr07_1bpp; |
| 142 | unsigned char sr07_1bpp_mux; |
| 143 | unsigned char sr07_8bpp; |
| 144 | unsigned char sr07_8bpp_mux; |
| 145 | |
| 146 | unsigned char sr1f; /* SR1F VGA initial register value */ |
| 147 | } cirrusfb_board_info[] = { |
| 148 | [BT_SD64] = { |
| 149 | .name = "CL SD64", |
| 150 | .maxclock = { |
| 151 | /* guess */ |
| 152 | /* the SD64/P4 have a higher max. videoclock */ |
| 153 | 140000, 140000, 140000, 140000, 140000, |
| 154 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 155 | .init_sr07 = true, |
| 156 | .init_sr1f = true, |
| 157 | .scrn_start_bit19 = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | .sr07 = 0xF0, |
| 159 | .sr07_1bpp = 0xF0, |
| 160 | .sr07_8bpp = 0xF1, |
| 161 | .sr1f = 0x20 |
| 162 | }, |
| 163 | [BT_PICCOLO] = { |
| 164 | .name = "CL Piccolo", |
| 165 | .maxclock = { |
| 166 | /* guess */ |
| 167 | 90000, 90000, 90000, 90000, 90000 |
| 168 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 169 | .init_sr07 = true, |
| 170 | .init_sr1f = true, |
| 171 | .scrn_start_bit19 = false, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | .sr07 = 0x80, |
| 173 | .sr07_1bpp = 0x80, |
| 174 | .sr07_8bpp = 0x81, |
| 175 | .sr1f = 0x22 |
| 176 | }, |
| 177 | [BT_PICASSO] = { |
| 178 | .name = "CL Picasso", |
| 179 | .maxclock = { |
| 180 | /* guess */ |
| 181 | 90000, 90000, 90000, 90000, 90000 |
| 182 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 183 | .init_sr07 = true, |
| 184 | .init_sr1f = true, |
| 185 | .scrn_start_bit19 = false, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | .sr07 = 0x20, |
| 187 | .sr07_1bpp = 0x20, |
| 188 | .sr07_8bpp = 0x21, |
| 189 | .sr1f = 0x22 |
| 190 | }, |
| 191 | [BT_SPECTRUM] = { |
| 192 | .name = "CL Spectrum", |
| 193 | .maxclock = { |
| 194 | /* guess */ |
| 195 | 90000, 90000, 90000, 90000, 90000 |
| 196 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 197 | .init_sr07 = true, |
| 198 | .init_sr1f = true, |
| 199 | .scrn_start_bit19 = false, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | .sr07 = 0x80, |
| 201 | .sr07_1bpp = 0x80, |
| 202 | .sr07_8bpp = 0x81, |
| 203 | .sr1f = 0x22 |
| 204 | }, |
| 205 | [BT_PICASSO4] = { |
| 206 | .name = "CL Picasso4", |
| 207 | .maxclock = { |
| 208 | 135100, 135100, 85500, 85500, 0 |
| 209 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 210 | .init_sr07 = true, |
| 211 | .init_sr1f = false, |
| 212 | .scrn_start_bit19 = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | .sr07 = 0x20, |
| 214 | .sr07_1bpp = 0x20, |
| 215 | .sr07_8bpp = 0x21, |
| 216 | .sr1f = 0 |
| 217 | }, |
| 218 | [BT_ALPINE] = { |
| 219 | .name = "CL Alpine", |
| 220 | .maxclock = { |
| 221 | /* for the GD5430. GD5446 can do more... */ |
| 222 | 85500, 85500, 50000, 28500, 0 |
| 223 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 224 | .init_sr07 = true, |
| 225 | .init_sr1f = true, |
| 226 | .scrn_start_bit19 = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | .sr07 = 0xA0, |
| 228 | .sr07_1bpp = 0xA1, |
| 229 | .sr07_1bpp_mux = 0xA7, |
| 230 | .sr07_8bpp = 0xA1, |
| 231 | .sr07_8bpp_mux = 0xA7, |
| 232 | .sr1f = 0x1C |
| 233 | }, |
| 234 | [BT_GD5480] = { |
| 235 | .name = "CL GD5480", |
| 236 | .maxclock = { |
| 237 | 135100, 200000, 200000, 135100, 135100 |
| 238 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 239 | .init_sr07 = true, |
| 240 | .init_sr1f = true, |
| 241 | .scrn_start_bit19 = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | .sr07 = 0x10, |
| 243 | .sr07_1bpp = 0x11, |
| 244 | .sr07_8bpp = 0x11, |
| 245 | .sr1f = 0x1C |
| 246 | }, |
| 247 | [BT_LAGUNA] = { |
| 248 | .name = "CL Laguna", |
| 249 | .maxclock = { |
| 250 | /* guess */ |
| 251 | 135100, 135100, 135100, 135100, 135100, |
| 252 | }, |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 253 | .init_sr07 = false, |
| 254 | .init_sr1f = false, |
| 255 | .scrn_start_bit19 = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | } |
| 257 | }; |
| 258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | #ifdef CONFIG_PCI |
| 260 | #define CHIP(id, btype) \ |
Grant Coady | 4153812 | 2005-09-29 10:40:52 +1000 | [diff] [blame] | 261 | { PCI_VENDOR_ID_CIRRUS, id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (btype) } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
| 263 | static struct pci_device_id cirrusfb_pci_table[] = { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 264 | CHIP(PCI_DEVICE_ID_CIRRUS_5436, BT_ALPINE), |
| 265 | CHIP(PCI_DEVICE_ID_CIRRUS_5434_8, BT_ALPINE), |
| 266 | CHIP(PCI_DEVICE_ID_CIRRUS_5434_4, BT_ALPINE), |
| 267 | CHIP(PCI_DEVICE_ID_CIRRUS_5430, BT_ALPINE), /* GD-5440 is same id */ |
| 268 | CHIP(PCI_DEVICE_ID_CIRRUS_7543, BT_ALPINE), |
| 269 | CHIP(PCI_DEVICE_ID_CIRRUS_7548, BT_ALPINE), |
| 270 | CHIP(PCI_DEVICE_ID_CIRRUS_5480, BT_GD5480), /* MacPicasso likely */ |
| 271 | CHIP(PCI_DEVICE_ID_CIRRUS_5446, BT_PICASSO4), /* Picasso 4 is 5446 */ |
| 272 | CHIP(PCI_DEVICE_ID_CIRRUS_5462, BT_LAGUNA), /* CL Laguna */ |
| 273 | CHIP(PCI_DEVICE_ID_CIRRUS_5464, BT_LAGUNA), /* CL Laguna 3D */ |
| 274 | CHIP(PCI_DEVICE_ID_CIRRUS_5465, BT_LAGUNA), /* CL Laguna 3DA*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | { 0, } |
| 276 | }; |
| 277 | MODULE_DEVICE_TABLE(pci, cirrusfb_pci_table); |
| 278 | #undef CHIP |
| 279 | #endif /* CONFIG_PCI */ |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | #ifdef CONFIG_ZORRO |
| 282 | static const struct zorro_device_id cirrusfb_zorro_table[] = { |
| 283 | { |
| 284 | .id = ZORRO_PROD_HELFRICH_SD64_RAM, |
| 285 | .driver_data = BT_SD64, |
| 286 | }, { |
| 287 | .id = ZORRO_PROD_HELFRICH_PICCOLO_RAM, |
| 288 | .driver_data = BT_PICCOLO, |
| 289 | }, { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 290 | .id = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_II_II_PLUS_RAM, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | .driver_data = BT_PICASSO, |
| 292 | }, { |
| 293 | .id = ZORRO_PROD_GVP_EGS_28_24_SPECTRUM_RAM, |
| 294 | .driver_data = BT_SPECTRUM, |
| 295 | }, { |
| 296 | .id = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_IV_Z3, |
| 297 | .driver_data = BT_PICASSO4, |
| 298 | }, |
| 299 | { 0 } |
| 300 | }; |
| 301 | |
| 302 | static const struct { |
| 303 | zorro_id id2; |
| 304 | unsigned long size; |
| 305 | } cirrusfb_zorro_table2[] = { |
| 306 | [BT_SD64] = { |
| 307 | .id2 = ZORRO_PROD_HELFRICH_SD64_REG, |
| 308 | .size = 0x400000 |
| 309 | }, |
| 310 | [BT_PICCOLO] = { |
| 311 | .id2 = ZORRO_PROD_HELFRICH_PICCOLO_REG, |
| 312 | .size = 0x200000 |
| 313 | }, |
| 314 | [BT_PICASSO] = { |
| 315 | .id2 = ZORRO_PROD_VILLAGE_TRONIC_PICASSO_II_II_PLUS_REG, |
| 316 | .size = 0x200000 |
| 317 | }, |
| 318 | [BT_SPECTRUM] = { |
| 319 | .id2 = ZORRO_PROD_GVP_EGS_28_24_SPECTRUM_REG, |
| 320 | .size = 0x200000 |
| 321 | }, |
| 322 | [BT_PICASSO4] = { |
| 323 | .id2 = 0, |
| 324 | .size = 0x400000 |
| 325 | } |
| 326 | }; |
| 327 | #endif /* CONFIG_ZORRO */ |
| 328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | struct cirrusfb_regs { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | long freq; |
| 331 | long nom; |
| 332 | long den; |
| 333 | long div; |
| 334 | long multiplexing; |
| 335 | long mclk; |
| 336 | long divMCLK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | }; |
| 338 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | #ifdef CIRRUSFB_DEBUG |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 340 | enum cirrusfb_dbg_reg_class { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 341 | CRT, |
| 342 | SEQ |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 343 | }; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 344 | #endif /* CIRRUSFB_DEBUG */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | /* info about board */ |
| 347 | struct cirrusfb_info { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | u8 __iomem *regbase; |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 349 | enum cirrus_board btype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | unsigned char SFR; /* Shadow of special function register */ |
| 351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | struct cirrusfb_regs currentmode; |
| 353 | int blank_mode; |
Krzysztof Helt | 64beab1 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 354 | u32 pseudo_palette[16]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 356 | void (*unmap)(struct fb_info *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | }; |
| 358 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 359 | static int noaccel; |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 360 | static char *mode_option __devinitdata = "640x480@60"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
| 362 | /****************************************************************************/ |
| 363 | /**** BEGIN PROTOTYPES ******************************************************/ |
| 364 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | /*--- Interface used by the world ------------------------------------------*/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 366 | static int cirrusfb_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | #ifndef MODULE |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 368 | static int cirrusfb_setup(char *options); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | #endif |
| 370 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 371 | static int cirrusfb_open(struct fb_info *info, int user); |
| 372 | static int cirrusfb_release(struct fb_info *info, int user); |
| 373 | static int cirrusfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 374 | unsigned blue, unsigned transp, |
| 375 | struct fb_info *info); |
| 376 | static int cirrusfb_check_var(struct fb_var_screeninfo *var, |
| 377 | struct fb_info *info); |
| 378 | static int cirrusfb_set_par(struct fb_info *info); |
| 379 | static int cirrusfb_pan_display(struct fb_var_screeninfo *var, |
| 380 | struct fb_info *info); |
| 381 | static int cirrusfb_blank(int blank_mode, struct fb_info *info); |
| 382 | static void cirrusfb_fillrect(struct fb_info *info, |
| 383 | const struct fb_fillrect *region); |
| 384 | static void cirrusfb_copyarea(struct fb_info *info, |
| 385 | const struct fb_copyarea *area); |
| 386 | static void cirrusfb_imageblit(struct fb_info *info, |
| 387 | const struct fb_image *image); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | |
| 389 | /* function table of the above functions */ |
| 390 | static struct fb_ops cirrusfb_ops = { |
| 391 | .owner = THIS_MODULE, |
| 392 | .fb_open = cirrusfb_open, |
| 393 | .fb_release = cirrusfb_release, |
| 394 | .fb_setcolreg = cirrusfb_setcolreg, |
| 395 | .fb_check_var = cirrusfb_check_var, |
| 396 | .fb_set_par = cirrusfb_set_par, |
| 397 | .fb_pan_display = cirrusfb_pan_display, |
| 398 | .fb_blank = cirrusfb_blank, |
| 399 | .fb_fillrect = cirrusfb_fillrect, |
| 400 | .fb_copyarea = cirrusfb_copyarea, |
| 401 | .fb_imageblit = cirrusfb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | }; |
| 403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | /*--- Internal routines ----------------------------------------------------*/ |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 405 | static void init_vgachip(struct fb_info *info); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 406 | static void switch_monitor(struct cirrusfb_info *cinfo, int on); |
| 407 | static void WGen(const struct cirrusfb_info *cinfo, |
| 408 | int regnum, unsigned char val); |
| 409 | static unsigned char RGen(const struct cirrusfb_info *cinfo, int regnum); |
| 410 | static void AttrOn(const struct cirrusfb_info *cinfo); |
| 411 | static void WHDR(const struct cirrusfb_info *cinfo, unsigned char val); |
| 412 | static void WSFR(struct cirrusfb_info *cinfo, unsigned char val); |
| 413 | static void WSFR2(struct cirrusfb_info *cinfo, unsigned char val); |
| 414 | static void WClut(struct cirrusfb_info *cinfo, unsigned char regnum, |
| 415 | unsigned char red, unsigned char green, unsigned char blue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | #if 0 |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 417 | static void RClut(struct cirrusfb_info *cinfo, unsigned char regnum, |
| 418 | unsigned char *red, unsigned char *green, |
| 419 | unsigned char *blue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | #endif |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 421 | static void cirrusfb_WaitBLT(u8 __iomem *regbase); |
| 422 | static void cirrusfb_BitBLT(u8 __iomem *regbase, int bits_per_pixel, |
| 423 | u_short curx, u_short cury, |
| 424 | u_short destx, u_short desty, |
| 425 | u_short width, u_short height, |
| 426 | u_short line_length); |
| 427 | static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel, |
| 428 | u_short x, u_short y, |
| 429 | u_short width, u_short height, |
| 430 | u_char color, u_short line_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 432 | static void bestclock(long freq, long *best, |
| 433 | long *nom, long *den, |
| 434 | long *div, long maxfreq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | |
| 436 | #ifdef CIRRUSFB_DEBUG |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 437 | static void cirrusfb_dump(void); |
| 438 | static void cirrusfb_dbg_reg_dump(caddr_t regbase); |
| 439 | static void cirrusfb_dbg_print_regs(caddr_t regbase, |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 440 | enum cirrusfb_dbg_reg_class reg_class, ...); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 441 | static void cirrusfb_dbg_print_byte(const char *name, unsigned char val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | #endif /* CIRRUSFB_DEBUG */ |
| 443 | |
| 444 | /*** END PROTOTYPES ********************************************************/ |
| 445 | /*****************************************************************************/ |
| 446 | /*** BEGIN Interface Used by the World ***************************************/ |
| 447 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 448 | static int opencount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
| 450 | /*--- Open /dev/fbx ---------------------------------------------------------*/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 451 | static int cirrusfb_open(struct fb_info *info, int user) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | { |
| 453 | if (opencount++ == 0) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 454 | switch_monitor(info->par, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | /*--- Close /dev/fbx --------------------------------------------------------*/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 459 | static int cirrusfb_release(struct fb_info *info, int user) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | { |
| 461 | if (--opencount == 0) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 462 | switch_monitor(info->par, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | /**** END Interface used by the World *************************************/ |
| 467 | /****************************************************************************/ |
| 468 | /**** BEGIN Hardware specific Routines **************************************/ |
| 469 | |
| 470 | /* Get a good MCLK value */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 471 | static long cirrusfb_get_mclk(long freq, int bpp, long *div) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | { |
| 473 | long mclk; |
| 474 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 475 | assert(div != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | |
| 477 | /* Calculate MCLK, in case VCLK is high enough to require > 50MHz. |
| 478 | * Assume a 64-bit data path for now. The formula is: |
| 479 | * ((B * PCLK * 2)/W) * 1.2 |
| 480 | * B = bytes per pixel, PCLK = pixclock, W = data width in bytes */ |
| 481 | mclk = ((bpp / 8) * freq * 2) / 4; |
| 482 | mclk = (mclk * 12) / 10; |
| 483 | if (mclk < 50000) |
| 484 | mclk = 50000; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 485 | DPRINTK("Use MCLK of %ld kHz\n", mclk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | |
| 487 | /* Calculate value for SR1F. Multiply by 2 so we can round up. */ |
| 488 | mclk = ((mclk * 16) / 14318); |
| 489 | mclk = (mclk + 1) / 2; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 490 | DPRINTK("Set SR1F[5:0] to 0x%lx\n", mclk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | |
| 492 | /* Determine if we should use MCLK instead of VCLK, and if so, what we |
| 493 | * should divide it by to get VCLK */ |
| 494 | switch (freq) { |
| 495 | case 24751 ... 25249: |
| 496 | *div = 2; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 497 | DPRINTK("Using VCLK = MCLK/2\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | break; |
| 499 | case 49501 ... 50499: |
| 500 | *div = 1; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 501 | DPRINTK("Using VCLK = MCLK\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | break; |
| 503 | default: |
| 504 | *div = 0; |
| 505 | break; |
| 506 | } |
| 507 | |
| 508 | return mclk; |
| 509 | } |
| 510 | |
| 511 | static int cirrusfb_check_var(struct fb_var_screeninfo *var, |
| 512 | struct fb_info *info) |
| 513 | { |
Krzysztof Helt | 09a2910 | 2008-09-02 14:35:51 -0700 | [diff] [blame] | 514 | int yres; |
| 515 | /* memory size in pixels */ |
| 516 | unsigned pixels = info->screen_size * 8 / var->bits_per_pixel; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | |
| 518 | switch (var->bits_per_pixel) { |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 519 | case 1: |
Krzysztof Helt | 09a2910 | 2008-09-02 14:35:51 -0700 | [diff] [blame] | 520 | pixels /= 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | break; /* 8 pixel per byte, only 1/4th of mem usable */ |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 522 | case 8: |
| 523 | case 16: |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 524 | case 32: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | break; /* 1 pixel == 1 byte */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 527 | printk(KERN_ERR "cirrusfb: mode %dx%dx%d rejected..." |
| 528 | "color depth not supported.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | var->xres, var->yres, var->bits_per_pixel); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 530 | DPRINTK("EXIT - EINVAL error\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | return -EINVAL; |
| 532 | } |
| 533 | |
Krzysztof Helt | 09a2910 | 2008-09-02 14:35:51 -0700 | [diff] [blame] | 534 | if (var->xres_virtual < var->xres) |
| 535 | var->xres_virtual = var->xres; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | /* use highest possible virtual resolution */ |
Krzysztof Helt | 09a2910 | 2008-09-02 14:35:51 -0700 | [diff] [blame] | 537 | if (var->yres_virtual == -1) { |
| 538 | var->yres_virtual = pixels / var->xres_virtual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 540 | printk(KERN_INFO "cirrusfb: virtual resolution set to " |
| 541 | "maximum of %dx%d\n", var->xres_virtual, |
| 542 | var->yres_virtual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | if (var->yres_virtual < var->yres) |
| 545 | var->yres_virtual = var->yres; |
| 546 | |
Krzysztof Helt | 09a2910 | 2008-09-02 14:35:51 -0700 | [diff] [blame] | 547 | if (var->xres_virtual * var->yres_virtual > pixels) { |
| 548 | printk(KERN_ERR "cirrusfb: mode %dx%dx%d rejected... " |
| 549 | "virtual resolution too high to fit into video memory!\n", |
| 550 | var->xres_virtual, var->yres_virtual, |
| 551 | var->bits_per_pixel); |
| 552 | DPRINTK("EXIT - EINVAL error\n"); |
| 553 | return -EINVAL; |
| 554 | } |
| 555 | |
| 556 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | if (var->xoffset < 0) |
| 558 | var->xoffset = 0; |
| 559 | if (var->yoffset < 0) |
| 560 | var->yoffset = 0; |
| 561 | |
| 562 | /* truncate xoffset and yoffset to maximum if too high */ |
| 563 | if (var->xoffset > var->xres_virtual - var->xres) |
| 564 | var->xoffset = var->xres_virtual - var->xres - 1; |
| 565 | if (var->yoffset > var->yres_virtual - var->yres) |
| 566 | var->yoffset = var->yres_virtual - var->yres - 1; |
| 567 | |
| 568 | switch (var->bits_per_pixel) { |
| 569 | case 1: |
| 570 | var->red.offset = 0; |
| 571 | var->red.length = 1; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 572 | var->green = var->red; |
| 573 | var->blue = var->red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | break; |
| 575 | |
| 576 | case 8: |
| 577 | var->red.offset = 0; |
| 578 | var->red.length = 6; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 579 | var->green = var->red; |
| 580 | var->blue = var->red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | break; |
| 582 | |
| 583 | case 16: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 584 | if (isPReP) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | var->red.offset = 2; |
| 586 | var->green.offset = -3; |
| 587 | var->blue.offset = 8; |
| 588 | } else { |
| 589 | var->red.offset = 10; |
| 590 | var->green.offset = 5; |
| 591 | var->blue.offset = 0; |
| 592 | } |
| 593 | var->red.length = 5; |
| 594 | var->green.length = 5; |
| 595 | var->blue.length = 5; |
| 596 | break; |
| 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | case 32: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 599 | if (isPReP) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | var->red.offset = 8; |
| 601 | var->green.offset = 16; |
| 602 | var->blue.offset = 24; |
| 603 | } else { |
| 604 | var->red.offset = 16; |
| 605 | var->green.offset = 8; |
| 606 | var->blue.offset = 0; |
| 607 | } |
| 608 | var->red.length = 8; |
| 609 | var->green.length = 8; |
| 610 | var->blue.length = 8; |
| 611 | break; |
| 612 | |
| 613 | default: |
| 614 | DPRINTK("Unsupported bpp size: %d\n", var->bits_per_pixel); |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 615 | assert(false); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | /* should never occur */ |
| 617 | break; |
| 618 | } |
| 619 | |
| 620 | var->red.msb_right = |
| 621 | var->green.msb_right = |
| 622 | var->blue.msb_right = |
| 623 | var->transp.offset = |
| 624 | var->transp.length = |
| 625 | var->transp.msb_right = 0; |
| 626 | |
| 627 | yres = var->yres; |
| 628 | if (var->vmode & FB_VMODE_DOUBLE) |
| 629 | yres *= 2; |
| 630 | else if (var->vmode & FB_VMODE_INTERLACED) |
| 631 | yres = (yres + 1) / 2; |
| 632 | |
| 633 | if (yres >= 1280) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 634 | printk(KERN_ERR "cirrusfb: ERROR: VerticalTotal >= 1280; " |
| 635 | "special treatment required! (TODO)\n"); |
| 636 | DPRINTK("EXIT - EINVAL error\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | return -EINVAL; |
| 638 | } |
| 639 | |
| 640 | return 0; |
| 641 | } |
| 642 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 643 | static int cirrusfb_decode_var(const struct fb_var_screeninfo *var, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | struct cirrusfb_regs *regs, |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 645 | struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | { |
| 647 | long freq; |
| 648 | long maxclock; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 649 | int maxclockidx = var->bits_per_pixel >> 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | struct cirrusfb_info *cinfo = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 652 | switch (var->bits_per_pixel) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | case 1: |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 654 | info->fix.line_length = var->xres_virtual / 8; |
| 655 | info->fix.visual = FB_VISUAL_MONO10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | break; |
| 657 | |
| 658 | case 8: |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 659 | info->fix.line_length = var->xres_virtual; |
| 660 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | break; |
| 662 | |
| 663 | case 16: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | case 32: |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 665 | info->fix.line_length = var->xres_virtual * maxclockidx; |
| 666 | info->fix.visual = FB_VISUAL_DIRECTCOLOR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | break; |
| 668 | |
| 669 | default: |
| 670 | DPRINTK("Unsupported bpp size: %d\n", var->bits_per_pixel); |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 671 | assert(false); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | /* should never occur */ |
| 673 | break; |
| 674 | } |
| 675 | |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 676 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
| 678 | /* convert from ps to kHz */ |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 679 | freq = PICOS2KHZ(var->pixclock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 681 | DPRINTK("desired pixclock: %ld kHz\n", freq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
| 683 | maxclock = cirrusfb_board_info[cinfo->btype].maxclock[maxclockidx]; |
| 684 | regs->multiplexing = 0; |
| 685 | |
| 686 | /* If the frequency is greater than we can support, we might be able |
| 687 | * to use multiplexing for the video mode */ |
| 688 | if (freq > maxclock) { |
| 689 | switch (cinfo->btype) { |
| 690 | case BT_ALPINE: |
| 691 | case BT_GD5480: |
| 692 | regs->multiplexing = 1; |
| 693 | break; |
| 694 | |
| 695 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 696 | printk(KERN_ERR "cirrusfb: Frequency greater " |
| 697 | "than maxclock (%ld kHz)\n", maxclock); |
| 698 | DPRINTK("EXIT - return -EINVAL\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | return -EINVAL; |
| 700 | } |
| 701 | } |
| 702 | #if 0 |
| 703 | /* TODO: If we have a 1MB 5434, we need to put ourselves in a mode where |
| 704 | * the VCLK is double the pixel clock. */ |
| 705 | switch (var->bits_per_pixel) { |
| 706 | case 16: |
| 707 | case 32: |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 708 | if (var->xres <= 800) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 709 | /* Xbh has this type of clock for 32-bit */ |
| 710 | freq /= 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | break; |
| 712 | } |
| 713 | #endif |
| 714 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 715 | bestclock(freq, ®s->freq, ®s->nom, ®s->den, ®s->div, |
| 716 | maxclock); |
| 717 | regs->mclk = cirrusfb_get_mclk(freq, var->bits_per_pixel, |
| 718 | ®s->divMCLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | return 0; |
| 721 | } |
| 722 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 723 | static void cirrusfb_set_mclk(const struct cirrusfb_info *cinfo, int val, |
| 724 | int div) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 726 | assert(cinfo != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | |
| 728 | if (div == 2) { |
| 729 | /* VCLK = MCLK/2 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 730 | unsigned char old = vga_rseq(cinfo->regbase, CL_SEQR1E); |
| 731 | vga_wseq(cinfo->regbase, CL_SEQR1E, old | 0x1); |
| 732 | vga_wseq(cinfo->regbase, CL_SEQR1F, 0x40 | (val & 0x3f)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | } else if (div == 1) { |
| 734 | /* VCLK = MCLK */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 735 | unsigned char old = vga_rseq(cinfo->regbase, CL_SEQR1E); |
| 736 | vga_wseq(cinfo->regbase, CL_SEQR1E, old & ~0x1); |
| 737 | vga_wseq(cinfo->regbase, CL_SEQR1F, 0x40 | (val & 0x3f)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 739 | vga_wseq(cinfo->regbase, CL_SEQR1F, val & 0x3f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | } |
| 741 | } |
| 742 | |
| 743 | /************************************************************************* |
| 744 | cirrusfb_set_par_foo() |
| 745 | |
| 746 | actually writes the values for a new video mode into the hardware, |
| 747 | **************************************************************************/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 748 | static int cirrusfb_set_par_foo(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | { |
| 750 | struct cirrusfb_info *cinfo = info->par; |
| 751 | struct fb_var_screeninfo *var = &info->var; |
| 752 | struct cirrusfb_regs regs; |
| 753 | u8 __iomem *regbase = cinfo->regbase; |
| 754 | unsigned char tmp; |
| 755 | int offset = 0, err; |
| 756 | const struct cirrusfb_board_info_rec *bi; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 757 | int hdispend, hsyncstart, hsyncend, htotal; |
| 758 | int yres, vdispend, vsyncstart, vsyncend, vtotal; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 760 | DPRINTK("ENTER\n"); |
| 761 | DPRINTK("Requested mode: %dx%dx%d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | var->xres, var->yres, var->bits_per_pixel); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 763 | DPRINTK("pixclock: %d\n", var->pixclock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 765 | init_vgachip(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | |
| 767 | err = cirrusfb_decode_var(var, ®s, info); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 768 | if (err) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | /* should never happen */ |
| 770 | DPRINTK("mode change aborted. invalid var.\n"); |
| 771 | return -EINVAL; |
| 772 | } |
| 773 | |
| 774 | bi = &cirrusfb_board_info[cinfo->btype]; |
| 775 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 776 | hsyncstart = var->xres + var->right_margin; |
| 777 | hsyncend = hsyncstart + var->hsync_len; |
| 778 | htotal = (hsyncend + var->left_margin) / 8 - 5; |
| 779 | hdispend = var->xres / 8 - 1; |
| 780 | hsyncstart = hsyncstart / 8 + 1; |
| 781 | hsyncend = hsyncend / 8 + 1; |
| 782 | |
| 783 | yres = var->yres; |
| 784 | vsyncstart = yres + var->lower_margin; |
| 785 | vsyncend = vsyncstart + var->vsync_len; |
| 786 | vtotal = vsyncend + var->upper_margin; |
| 787 | vdispend = yres - 1; |
| 788 | |
| 789 | if (var->vmode & FB_VMODE_DOUBLE) { |
| 790 | yres *= 2; |
| 791 | vsyncstart *= 2; |
| 792 | vsyncend *= 2; |
| 793 | vtotal *= 2; |
| 794 | } else if (var->vmode & FB_VMODE_INTERLACED) { |
| 795 | yres = (yres + 1) / 2; |
| 796 | vsyncstart = (vsyncstart + 1) / 2; |
| 797 | vsyncend = (vsyncend + 1) / 2; |
| 798 | vtotal = (vtotal + 1) / 2; |
| 799 | } |
| 800 | |
| 801 | vtotal -= 2; |
| 802 | vsyncstart -= 1; |
| 803 | vsyncend -= 1; |
| 804 | |
| 805 | if (yres >= 1024) { |
| 806 | vtotal /= 2; |
| 807 | vsyncstart /= 2; |
| 808 | vsyncend /= 2; |
| 809 | vdispend /= 2; |
| 810 | } |
| 811 | if (regs.multiplexing) { |
| 812 | htotal /= 2; |
| 813 | hsyncstart /= 2; |
| 814 | hsyncend /= 2; |
| 815 | hdispend /= 2; |
| 816 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | /* unlock register VGA_CRTC_H_TOTAL..CRT7 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 818 | vga_wcrt(regbase, VGA_CRTC_V_SYNC_END, 0x20); /* previously: 0x00) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | |
| 820 | /* if debugging is enabled, all parameters get output before writing */ |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 821 | DPRINTK("CRT0: %d\n", htotal); |
| 822 | vga_wcrt(regbase, VGA_CRTC_H_TOTAL, htotal); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 824 | DPRINTK("CRT1: %d\n", hdispend); |
| 825 | vga_wcrt(regbase, VGA_CRTC_H_DISP, hdispend); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 827 | DPRINTK("CRT2: %d\n", var->xres / 8); |
| 828 | vga_wcrt(regbase, VGA_CRTC_H_BLANK_START, var->xres / 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 830 | /* + 128: Compatible read */ |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 831 | DPRINTK("CRT3: 128+%d\n", (htotal + 5) % 32); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 832 | vga_wcrt(regbase, VGA_CRTC_H_BLANK_END, |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 833 | 128 + ((htotal + 5) % 32)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 835 | DPRINTK("CRT4: %d\n", hsyncstart); |
| 836 | vga_wcrt(regbase, VGA_CRTC_H_SYNC_START, hsyncstart); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 838 | tmp = hsyncend % 32; |
| 839 | if ((htotal + 5) & 32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | tmp += 128; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 841 | DPRINTK("CRT5: %d\n", tmp); |
| 842 | vga_wcrt(regbase, VGA_CRTC_H_SYNC_END, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 844 | DPRINTK("CRT6: %d\n", vtotal & 0xff); |
| 845 | vga_wcrt(regbase, VGA_CRTC_V_TOTAL, vtotal & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
| 847 | tmp = 16; /* LineCompare bit #9 */ |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 848 | if (vtotal & 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | tmp |= 1; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 850 | if (vdispend & 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | tmp |= 2; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 852 | if (vsyncstart & 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | tmp |= 4; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 854 | if ((vdispend + 1) & 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | tmp |= 8; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 856 | if (vtotal & 512) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | tmp |= 32; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 858 | if (vdispend & 512) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | tmp |= 64; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 860 | if (vsyncstart & 512) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | tmp |= 128; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 862 | DPRINTK("CRT7: %d\n", tmp); |
| 863 | vga_wcrt(regbase, VGA_CRTC_OVERFLOW, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
| 865 | tmp = 0x40; /* LineCompare bit #8 */ |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 866 | if ((vdispend + 1) & 512) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | tmp |= 0x20; |
| 868 | if (var->vmode & FB_VMODE_DOUBLE) |
| 869 | tmp |= 0x80; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 870 | DPRINTK("CRT9: %d\n", tmp); |
| 871 | vga_wcrt(regbase, VGA_CRTC_MAX_SCAN, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 873 | DPRINTK("CRT10: %d\n", vsyncstart & 0xff); |
| 874 | vga_wcrt(regbase, VGA_CRTC_V_SYNC_START, vsyncstart & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 876 | DPRINTK("CRT11: 64+32+%d\n", vsyncend % 16); |
| 877 | vga_wcrt(regbase, VGA_CRTC_V_SYNC_END, vsyncend % 16 + 64 + 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 879 | DPRINTK("CRT12: %d\n", vdispend & 0xff); |
| 880 | vga_wcrt(regbase, VGA_CRTC_V_DISP_END, vdispend & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 882 | DPRINTK("CRT15: %d\n", (vdispend + 1) & 0xff); |
| 883 | vga_wcrt(regbase, VGA_CRTC_V_BLANK_START, (vdispend + 1) & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 885 | DPRINTK("CRT16: %d\n", vtotal & 0xff); |
| 886 | vga_wcrt(regbase, VGA_CRTC_V_BLANK_END, vtotal & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 888 | DPRINTK("CRT18: 0xff\n"); |
| 889 | vga_wcrt(regbase, VGA_CRTC_LINE_COMPARE, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
| 891 | tmp = 0; |
| 892 | if (var->vmode & FB_VMODE_INTERLACED) |
| 893 | tmp |= 1; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 894 | if ((htotal + 5) & 64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | tmp |= 16; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 896 | if ((htotal + 5) & 128) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | tmp |= 32; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 898 | if (vtotal & 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | tmp |= 64; |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 900 | if (vtotal & 512) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | tmp |= 128; |
| 902 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 903 | DPRINTK("CRT1a: %d\n", tmp); |
| 904 | vga_wcrt(regbase, CL_CRT1A, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | |
| 906 | /* set VCLK0 */ |
| 907 | /* hardware RefClock: 14.31818 MHz */ |
| 908 | /* formula: VClk = (OSC * N) / (D * (1+P)) */ |
| 909 | /* Example: VClk = (14.31818 * 91) / (23 * (1+1)) = 28.325 MHz */ |
| 910 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 911 | vga_wseq(regbase, CL_SEQRB, regs.nom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | tmp = regs.den << 1; |
| 913 | if (regs.div != 0) |
| 914 | tmp |= 1; |
| 915 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 916 | /* 6 bit denom; ONLY 5434!!! (bugged me 10 days) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | if ((cinfo->btype == BT_SD64) || |
| 918 | (cinfo->btype == BT_ALPINE) || |
| 919 | (cinfo->btype == BT_GD5480)) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 920 | tmp |= 0x80; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 922 | DPRINTK("CL_SEQR1B: %ld\n", (long) tmp); |
| 923 | vga_wseq(regbase, CL_SEQR1B, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 925 | if (yres >= 1024) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | /* 1280x1024 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 927 | vga_wcrt(regbase, VGA_CRTC_MODE, 0xc7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | else |
| 929 | /* mode control: VGA_CRTC_START_HI enable, ROTATE(?), 16bit |
| 930 | * address wrap, no compat. */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 931 | vga_wcrt(regbase, VGA_CRTC_MODE, 0xc3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 933 | /* HAEH? vga_wcrt(regbase, VGA_CRTC_V_SYNC_END, 0x20); |
| 934 | * previously: 0x00 unlock VGA_CRTC_H_TOTAL..CRT7 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | |
| 936 | /* don't know if it would hurt to also program this if no interlaced */ |
| 937 | /* mode is used, but I feel better this way.. :-) */ |
| 938 | if (var->vmode & FB_VMODE_INTERLACED) |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 939 | vga_wcrt(regbase, VGA_CRTC_REGS, htotal / 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | else |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 941 | vga_wcrt(regbase, VGA_CRTC_REGS, 0x00); /* interlace control */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 943 | vga_wseq(regbase, VGA_SEQ_CHARACTER_MAP, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | |
| 945 | /* adjust horizontal/vertical sync type (low/high) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 946 | /* enable display memory & CRTC I/O address for color mode */ |
| 947 | tmp = 0x03; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | if (var->sync & FB_SYNC_HOR_HIGH_ACT) |
| 949 | tmp |= 0x40; |
| 950 | if (var->sync & FB_SYNC_VERT_HIGH_ACT) |
| 951 | tmp |= 0x80; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 952 | WGen(cinfo, VGA_MIS_W, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 954 | /* Screen A Preset Row-Scan register */ |
| 955 | vga_wcrt(regbase, VGA_CRTC_PRESET_ROW, 0); |
| 956 | /* text cursor on and start line */ |
| 957 | vga_wcrt(regbase, VGA_CRTC_CURSOR_START, 0); |
| 958 | /* text cursor end line */ |
| 959 | vga_wcrt(regbase, VGA_CRTC_CURSOR_END, 31); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | |
| 961 | /****************************************************** |
| 962 | * |
| 963 | * 1 bpp |
| 964 | * |
| 965 | */ |
| 966 | |
| 967 | /* programming for different color depths */ |
| 968 | if (var->bits_per_pixel == 1) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 969 | DPRINTK("cirrusfb: preparing for 1 bit deep display\n"); |
| 970 | vga_wgfx(regbase, VGA_GFX_MODE, 0); /* mode register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | |
| 972 | /* SR07 */ |
| 973 | switch (cinfo->btype) { |
| 974 | case BT_SD64: |
| 975 | case BT_PICCOLO: |
| 976 | case BT_PICASSO: |
| 977 | case BT_SPECTRUM: |
| 978 | case BT_PICASSO4: |
| 979 | case BT_ALPINE: |
| 980 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 981 | DPRINTK(" (for GD54xx)\n"); |
| 982 | vga_wseq(regbase, CL_SEQR7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | regs.multiplexing ? |
| 984 | bi->sr07_1bpp_mux : bi->sr07_1bpp); |
| 985 | break; |
| 986 | |
| 987 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 988 | DPRINTK(" (for GD546x)\n"); |
| 989 | vga_wseq(regbase, CL_SEQR7, |
| 990 | vga_rseq(regbase, CL_SEQR7) & ~0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | break; |
| 992 | |
| 993 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 994 | printk(KERN_WARNING "cirrusfb: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | break; |
| 996 | } |
| 997 | |
| 998 | /* Extended Sequencer Mode */ |
| 999 | switch (cinfo->btype) { |
| 1000 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1001 | /* setting the SEQRF on SD64 is not necessary |
| 1002 | * (only during init) |
| 1003 | */ |
| 1004 | DPRINTK("(for SD64)\n"); |
| 1005 | /* MCLK select */ |
| 1006 | vga_wseq(regbase, CL_SEQR1F, 0x1a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | break; |
| 1008 | |
| 1009 | case BT_PICCOLO: |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1010 | case BT_SPECTRUM: |
| 1011 | DPRINTK("(for Piccolo/Spectrum)\n"); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1012 | /* ### ueberall 0x22? */ |
| 1013 | /* ##vorher 1c MCLK select */ |
| 1014 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
| 1015 | /* evtl d0 bei 1 bit? avoid FIFO underruns..? */ |
| 1016 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | break; |
| 1018 | |
| 1019 | case BT_PICASSO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1020 | DPRINTK("(for Picasso)\n"); |
| 1021 | /* ##vorher 22 MCLK select */ |
| 1022 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
| 1023 | /* ## vorher d0 avoid FIFO underruns..? */ |
| 1024 | vga_wseq(regbase, CL_SEQRF, 0xd0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | break; |
| 1026 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | case BT_PICASSO4: |
| 1028 | case BT_ALPINE: |
| 1029 | case BT_GD5480: |
| 1030 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1031 | DPRINTK(" (for GD54xx)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | /* do nothing */ |
| 1033 | break; |
| 1034 | |
| 1035 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1036 | printk(KERN_WARNING "cirrusfb: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | break; |
| 1038 | } |
| 1039 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1040 | /* pixel mask: pass-through for first plane */ |
| 1041 | WGen(cinfo, VGA_PEL_MSK, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | if (regs.multiplexing) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1043 | /* hidden dac reg: 1280x1024 */ |
| 1044 | WHDR(cinfo, 0x4a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | else |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1046 | /* hidden dac: nothing */ |
| 1047 | WHDR(cinfo, 0); |
| 1048 | /* memory mode: odd/even, ext. memory */ |
| 1049 | vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, 0x06); |
| 1050 | /* plane mask: only write to first plane */ |
| 1051 | vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | offset = var->xres_virtual / 16; |
| 1053 | } |
| 1054 | |
| 1055 | /****************************************************** |
| 1056 | * |
| 1057 | * 8 bpp |
| 1058 | * |
| 1059 | */ |
| 1060 | |
| 1061 | else if (var->bits_per_pixel == 8) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1062 | DPRINTK("cirrusfb: preparing for 8 bit deep display\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | switch (cinfo->btype) { |
| 1064 | case BT_SD64: |
| 1065 | case BT_PICCOLO: |
| 1066 | case BT_PICASSO: |
| 1067 | case BT_SPECTRUM: |
| 1068 | case BT_PICASSO4: |
| 1069 | case BT_ALPINE: |
| 1070 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1071 | DPRINTK(" (for GD54xx)\n"); |
| 1072 | vga_wseq(regbase, CL_SEQR7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | regs.multiplexing ? |
| 1074 | bi->sr07_8bpp_mux : bi->sr07_8bpp); |
| 1075 | break; |
| 1076 | |
| 1077 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1078 | DPRINTK(" (for GD546x)\n"); |
| 1079 | vga_wseq(regbase, CL_SEQR7, |
| 1080 | vga_rseq(regbase, CL_SEQR7) | 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | break; |
| 1082 | |
| 1083 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1084 | printk(KERN_WARNING "cirrusfb: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1085 | break; |
| 1086 | } |
| 1087 | |
| 1088 | switch (cinfo->btype) { |
| 1089 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1090 | /* MCLK select */ |
| 1091 | vga_wseq(regbase, CL_SEQR1F, 0x1d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | break; |
| 1093 | |
| 1094 | case BT_PICCOLO: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | case BT_PICASSO: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1097 | /* ### vorher 1c MCLK select */ |
| 1098 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
| 1099 | /* Fast Page-Mode writes */ |
| 1100 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | break; |
| 1102 | |
| 1103 | case BT_PICASSO4: |
| 1104 | #ifdef CONFIG_ZORRO |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1105 | /* ### INCOMPLETE!! */ |
| 1106 | vga_wseq(regbase, CL_SEQRF, 0xb8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | #endif |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1108 | /* vga_wseq(regbase, CL_SEQR1F, 0x1c); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | break; |
| 1110 | |
| 1111 | case BT_ALPINE: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1112 | DPRINTK(" (for GD543x)\n"); |
| 1113 | cirrusfb_set_mclk(cinfo, regs.mclk, regs.divMCLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | /* We already set SRF and SR1F */ |
| 1115 | break; |
| 1116 | |
| 1117 | case BT_GD5480: |
| 1118 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1119 | DPRINTK(" (for GD54xx)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | /* do nothing */ |
| 1121 | break; |
| 1122 | |
| 1123 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1124 | printk(KERN_WARNING "cirrusfb: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | break; |
| 1126 | } |
| 1127 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1128 | /* mode register: 256 color mode */ |
| 1129 | vga_wgfx(regbase, VGA_GFX_MODE, 64); |
| 1130 | /* pixel mask: pass-through all planes */ |
| 1131 | WGen(cinfo, VGA_PEL_MSK, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | if (regs.multiplexing) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1133 | /* hidden dac reg: 1280x1024 */ |
| 1134 | WHDR(cinfo, 0x4a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | else |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1136 | /* hidden dac: nothing */ |
| 1137 | WHDR(cinfo, 0); |
| 1138 | /* memory mode: chain4, ext. memory */ |
| 1139 | vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, 0x0a); |
| 1140 | /* plane mask: enable writing to all 4 planes */ |
| 1141 | vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | offset = var->xres_virtual / 8; |
| 1143 | } |
| 1144 | |
| 1145 | /****************************************************** |
| 1146 | * |
| 1147 | * 16 bpp |
| 1148 | * |
| 1149 | */ |
| 1150 | |
| 1151 | else if (var->bits_per_pixel == 16) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1152 | DPRINTK("cirrusfb: preparing for 16 bit deep display\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | switch (cinfo->btype) { |
| 1154 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1155 | /* Extended Sequencer Mode: 256c col. mode */ |
| 1156 | vga_wseq(regbase, CL_SEQR7, 0xf7); |
| 1157 | /* MCLK select */ |
| 1158 | vga_wseq(regbase, CL_SEQR1F, 0x1e); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | break; |
| 1160 | |
| 1161 | case BT_PICCOLO: |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1162 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1163 | vga_wseq(regbase, CL_SEQR7, 0x87); |
| 1164 | /* Fast Page-Mode writes */ |
| 1165 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
| 1166 | /* MCLK select */ |
| 1167 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | break; |
| 1169 | |
| 1170 | case BT_PICASSO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1171 | vga_wseq(regbase, CL_SEQR7, 0x27); |
| 1172 | /* Fast Page-Mode writes */ |
| 1173 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
| 1174 | /* MCLK select */ |
| 1175 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | break; |
| 1177 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | case BT_PICASSO4: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1179 | vga_wseq(regbase, CL_SEQR7, 0x27); |
| 1180 | /* vga_wseq(regbase, CL_SEQR1F, 0x1c); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | break; |
| 1182 | |
| 1183 | case BT_ALPINE: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1184 | DPRINTK(" (for GD543x)\n"); |
Krzysztof Helt | 9a85cf5 | 2008-10-15 22:03:39 -0700 | [diff] [blame^] | 1185 | if (var->xres >= 1024) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1186 | vga_wseq(regbase, CL_SEQR7, 0xa7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | else |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1188 | vga_wseq(regbase, CL_SEQR7, 0xa3); |
| 1189 | cirrusfb_set_mclk(cinfo, regs.mclk, regs.divMCLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | break; |
| 1191 | |
| 1192 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1193 | DPRINTK(" (for GD5480)\n"); |
| 1194 | vga_wseq(regbase, CL_SEQR7, 0x17); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | /* We already set SRF and SR1F */ |
| 1196 | break; |
| 1197 | |
| 1198 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1199 | DPRINTK(" (for GD546x)\n"); |
| 1200 | vga_wseq(regbase, CL_SEQR7, |
| 1201 | vga_rseq(regbase, CL_SEQR7) & ~0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | break; |
| 1203 | |
| 1204 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1205 | printk(KERN_WARNING "CIRRUSFB: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1206 | break; |
| 1207 | } |
| 1208 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1209 | /* mode register: 256 color mode */ |
| 1210 | vga_wgfx(regbase, VGA_GFX_MODE, 64); |
| 1211 | /* pixel mask: pass-through all planes */ |
| 1212 | WGen(cinfo, VGA_PEL_MSK, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | #ifdef CONFIG_PCI |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1214 | WHDR(cinfo, 0xc0); /* Copy Xbh */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | #elif defined(CONFIG_ZORRO) |
| 1216 | /* FIXME: CONFIG_PCI and CONFIG_ZORRO may be defined both */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1217 | WHDR(cinfo, 0xa0); /* hidden dac reg: nothing special */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | #endif |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1219 | /* memory mode: chain4, ext. memory */ |
| 1220 | vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, 0x0a); |
| 1221 | /* plane mask: enable writing to all 4 planes */ |
| 1222 | vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | offset = var->xres_virtual / 4; |
| 1224 | } |
| 1225 | |
| 1226 | /****************************************************** |
| 1227 | * |
| 1228 | * 32 bpp |
| 1229 | * |
| 1230 | */ |
| 1231 | |
| 1232 | else if (var->bits_per_pixel == 32) { |
Krzysztof Helt | 1cea9a9 | 2008-10-15 22:03:37 -0700 | [diff] [blame] | 1233 | DPRINTK("cirrusfb: preparing for 32 bit deep display\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | switch (cinfo->btype) { |
| 1235 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1236 | /* Extended Sequencer Mode: 256c col. mode */ |
| 1237 | vga_wseq(regbase, CL_SEQR7, 0xf9); |
| 1238 | /* MCLK select */ |
| 1239 | vga_wseq(regbase, CL_SEQR1F, 0x1e); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | break; |
| 1241 | |
| 1242 | case BT_PICCOLO: |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1243 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1244 | vga_wseq(regbase, CL_SEQR7, 0x85); |
| 1245 | /* Fast Page-Mode writes */ |
| 1246 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
| 1247 | /* MCLK select */ |
| 1248 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | break; |
| 1250 | |
| 1251 | case BT_PICASSO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1252 | vga_wseq(regbase, CL_SEQR7, 0x25); |
| 1253 | /* Fast Page-Mode writes */ |
| 1254 | vga_wseq(regbase, CL_SEQRF, 0xb0); |
| 1255 | /* MCLK select */ |
| 1256 | vga_wseq(regbase, CL_SEQR1F, 0x22); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | break; |
| 1258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | case BT_PICASSO4: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1260 | vga_wseq(regbase, CL_SEQR7, 0x25); |
| 1261 | /* vga_wseq(regbase, CL_SEQR1F, 0x1c); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | break; |
| 1263 | |
| 1264 | case BT_ALPINE: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1265 | DPRINTK(" (for GD543x)\n"); |
| 1266 | vga_wseq(regbase, CL_SEQR7, 0xa9); |
| 1267 | cirrusfb_set_mclk(cinfo, regs.mclk, regs.divMCLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | break; |
| 1269 | |
| 1270 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1271 | DPRINTK(" (for GD5480)\n"); |
| 1272 | vga_wseq(regbase, CL_SEQR7, 0x19); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | /* We already set SRF and SR1F */ |
| 1274 | break; |
| 1275 | |
| 1276 | case BT_LAGUNA: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1277 | DPRINTK(" (for GD546x)\n"); |
| 1278 | vga_wseq(regbase, CL_SEQR7, |
| 1279 | vga_rseq(regbase, CL_SEQR7) & ~0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | break; |
| 1281 | |
| 1282 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1283 | printk(KERN_WARNING "cirrusfb: unknown Board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | break; |
| 1285 | } |
| 1286 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1287 | /* mode register: 256 color mode */ |
| 1288 | vga_wgfx(regbase, VGA_GFX_MODE, 64); |
| 1289 | /* pixel mask: pass-through all planes */ |
| 1290 | WGen(cinfo, VGA_PEL_MSK, 0xff); |
| 1291 | /* hidden dac reg: 8-8-8 mode (24 or 32) */ |
| 1292 | WHDR(cinfo, 0xc5); |
| 1293 | /* memory mode: chain4, ext. memory */ |
| 1294 | vga_wseq(regbase, VGA_SEQ_MEMORY_MODE, 0x0a); |
| 1295 | /* plane mask: enable writing to all 4 planes */ |
| 1296 | vga_wseq(regbase, VGA_SEQ_PLANE_WRITE, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | offset = var->xres_virtual / 4; |
| 1298 | } |
| 1299 | |
| 1300 | /****************************************************** |
| 1301 | * |
| 1302 | * unknown/unsupported bpp |
| 1303 | * |
| 1304 | */ |
| 1305 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1306 | else |
| 1307 | printk(KERN_ERR "cirrusfb: What's this?? " |
| 1308 | " requested color depth == %d.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | var->bits_per_pixel); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1311 | vga_wcrt(regbase, VGA_CRTC_OFFSET, offset & 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | tmp = 0x22; |
| 1313 | if (offset & 0x100) |
| 1314 | tmp |= 0x10; /* offset overflow bit */ |
| 1315 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1316 | /* screen start addr #16-18, fastpagemode cycles */ |
| 1317 | vga_wcrt(regbase, CL_CRT1B, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1318 | |
| 1319 | if (cinfo->btype == BT_SD64 || |
| 1320 | cinfo->btype == BT_PICASSO4 || |
| 1321 | cinfo->btype == BT_ALPINE || |
| 1322 | cinfo->btype == BT_GD5480) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1323 | /* screen start address bit 19 */ |
| 1324 | vga_wcrt(regbase, CL_CRT1D, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1326 | /* text cursor location high */ |
| 1327 | vga_wcrt(regbase, VGA_CRTC_CURSOR_HI, 0); |
| 1328 | /* text cursor location low */ |
| 1329 | vga_wcrt(regbase, VGA_CRTC_CURSOR_LO, 0); |
| 1330 | /* underline row scanline = at very bottom */ |
| 1331 | vga_wcrt(regbase, VGA_CRTC_UNDERLINE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1333 | /* controller mode */ |
| 1334 | vga_wattr(regbase, VGA_ATC_MODE, 1); |
| 1335 | /* overscan (border) color */ |
| 1336 | vga_wattr(regbase, VGA_ATC_OVERSCAN, 0); |
| 1337 | /* color plane enable */ |
| 1338 | vga_wattr(regbase, VGA_ATC_PLANE_ENABLE, 15); |
| 1339 | /* pixel panning */ |
| 1340 | vga_wattr(regbase, CL_AR33, 0); |
| 1341 | /* color select */ |
| 1342 | vga_wattr(regbase, VGA_ATC_COLOR_PAGE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | |
| 1344 | /* [ EGS: SetOffset(); ] */ |
| 1345 | /* From SetOffset(): Turn on VideoEnable bit in Attribute controller */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1346 | AttrOn(cinfo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1348 | /* set/reset register */ |
| 1349 | vga_wgfx(regbase, VGA_GFX_SR_VALUE, 0); |
| 1350 | /* set/reset enable */ |
| 1351 | vga_wgfx(regbase, VGA_GFX_SR_ENABLE, 0); |
| 1352 | /* color compare */ |
| 1353 | vga_wgfx(regbase, VGA_GFX_COMPARE_VALUE, 0); |
| 1354 | /* data rotate */ |
| 1355 | vga_wgfx(regbase, VGA_GFX_DATA_ROTATE, 0); |
| 1356 | /* read map select */ |
| 1357 | vga_wgfx(regbase, VGA_GFX_PLANE_READ, 0); |
| 1358 | /* miscellaneous register */ |
| 1359 | vga_wgfx(regbase, VGA_GFX_MISC, 1); |
| 1360 | /* color don't care */ |
| 1361 | vga_wgfx(regbase, VGA_GFX_COMPARE_MASK, 15); |
| 1362 | /* bit mask */ |
| 1363 | vga_wgfx(regbase, VGA_GFX_BIT_MASK, 255); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1365 | /* graphics cursor attributes: nothing special */ |
| 1366 | vga_wseq(regbase, CL_SEQR12, 0x0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
| 1368 | /* finally, turn on everything - turn off "FullBandwidth" bit */ |
| 1369 | /* also, set "DotClock%2" bit where requested */ |
| 1370 | tmp = 0x01; |
| 1371 | |
| 1372 | /*** FB_VMODE_CLOCK_HALVE in linux/fb.h not defined anymore ? |
| 1373 | if (var->vmode & FB_VMODE_CLOCK_HALVE) |
| 1374 | tmp |= 0x08; |
| 1375 | */ |
| 1376 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1377 | vga_wseq(regbase, VGA_SEQ_CLOCK_MODE, tmp); |
| 1378 | DPRINTK("CL_SEQR1: %d\n", tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | |
| 1380 | cinfo->currentmode = regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | |
| 1382 | /* pan to requested offset */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1383 | cirrusfb_pan_display(var, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | |
| 1385 | #ifdef CIRRUSFB_DEBUG |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1386 | cirrusfb_dump(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | #endif |
| 1388 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1389 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | return 0; |
| 1391 | } |
| 1392 | |
| 1393 | /* for some reason incomprehensible to me, cirrusfb requires that you write |
| 1394 | * the registers twice for the settings to take..grr. -dte */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1395 | static int cirrusfb_set_par(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1397 | cirrusfb_set_par_foo(info); |
| 1398 | return cirrusfb_set_par_foo(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1399 | } |
| 1400 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1401 | static int cirrusfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 1402 | unsigned blue, unsigned transp, |
| 1403 | struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | { |
| 1405 | struct cirrusfb_info *cinfo = info->par; |
| 1406 | |
| 1407 | if (regno > 255) |
| 1408 | return -EINVAL; |
| 1409 | |
| 1410 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
| 1411 | u32 v; |
| 1412 | red >>= (16 - info->var.red.length); |
| 1413 | green >>= (16 - info->var.green.length); |
| 1414 | blue >>= (16 - info->var.blue.length); |
| 1415 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1416 | if (regno >= 16) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1417 | return 1; |
| 1418 | v = (red << info->var.red.offset) | |
| 1419 | (green << info->var.green.offset) | |
| 1420 | (blue << info->var.blue.offset); |
| 1421 | |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1422 | cinfo->pseudo_palette[regno] = v; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | return 0; |
| 1424 | } |
| 1425 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1426 | if (info->var.bits_per_pixel == 8) |
| 1427 | WClut(cinfo, regno, red >> 10, green >> 10, blue >> 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | |
| 1429 | return 0; |
| 1430 | |
| 1431 | } |
| 1432 | |
| 1433 | /************************************************************************* |
| 1434 | cirrusfb_pan_display() |
| 1435 | |
| 1436 | performs display panning - provided hardware permits this |
| 1437 | **************************************************************************/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1438 | static int cirrusfb_pan_display(struct fb_var_screeninfo *var, |
| 1439 | struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | { |
| 1441 | int xoffset = 0; |
| 1442 | int yoffset = 0; |
| 1443 | unsigned long base; |
| 1444 | unsigned char tmp = 0, tmp2 = 0, xpix; |
| 1445 | struct cirrusfb_info *cinfo = info->par; |
| 1446 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1447 | DPRINTK("ENTER\n"); |
| 1448 | DPRINTK("virtual offset: (%d,%d)\n", var->xoffset, var->yoffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | |
| 1450 | /* no range checks for xoffset and yoffset, */ |
| 1451 | /* as fb_pan_display has already done this */ |
| 1452 | if (var->vmode & FB_VMODE_YWRAP) |
| 1453 | return -EINVAL; |
| 1454 | |
| 1455 | info->var.xoffset = var->xoffset; |
| 1456 | info->var.yoffset = var->yoffset; |
| 1457 | |
| 1458 | xoffset = var->xoffset * info->var.bits_per_pixel / 8; |
| 1459 | yoffset = var->yoffset; |
| 1460 | |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1461 | base = yoffset * info->fix.line_length + xoffset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | |
| 1463 | if (info->var.bits_per_pixel == 1) { |
| 1464 | /* base is already correct */ |
| 1465 | xpix = (unsigned char) (var->xoffset % 8); |
| 1466 | } else { |
| 1467 | base /= 4; |
| 1468 | xpix = (unsigned char) ((xoffset % 4) * 2); |
| 1469 | } |
| 1470 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1471 | cirrusfb_WaitBLT(cinfo->regbase); /* make sure all the BLT's are done */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | |
| 1473 | /* lower 8 + 8 bits of screen start address */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1474 | vga_wcrt(cinfo->regbase, VGA_CRTC_START_LO, |
| 1475 | (unsigned char) (base & 0xff)); |
| 1476 | vga_wcrt(cinfo->regbase, VGA_CRTC_START_HI, |
| 1477 | (unsigned char) (base >> 8)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | |
| 1479 | /* construct bits 16, 17 and 18 of screen start address */ |
| 1480 | if (base & 0x10000) |
| 1481 | tmp |= 0x01; |
| 1482 | if (base & 0x20000) |
| 1483 | tmp |= 0x04; |
| 1484 | if (base & 0x40000) |
| 1485 | tmp |= 0x08; |
| 1486 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1487 | /* 0xf2 is %11110010, exclude tmp bits */ |
| 1488 | tmp2 = (vga_rcrt(cinfo->regbase, CL_CRT1B) & 0xf2) | tmp; |
| 1489 | vga_wcrt(cinfo->regbase, CL_CRT1B, tmp2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | |
| 1491 | /* construct bit 19 of screen start address */ |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1492 | if (cirrusfb_board_info[cinfo->btype].scrn_start_bit19) |
| 1493 | vga_wcrt(cinfo->regbase, CL_CRT1D, (base >> 12) & 0x80); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1495 | /* write pixel panning value to AR33; this does not quite work in 8bpp |
| 1496 | * |
| 1497 | * ### Piccolo..? Will this work? |
| 1498 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | if (info->var.bits_per_pixel == 1) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1500 | vga_wattr(cinfo->regbase, CL_AR33, xpix); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1502 | cirrusfb_WaitBLT(cinfo->regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1504 | DPRINTK("EXIT\n"); |
| 1505 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | } |
| 1507 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1508 | static int cirrusfb_blank(int blank_mode, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | { |
| 1510 | /* |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1511 | * Blank the screen if blank_mode != 0, else unblank. If blank == NULL |
| 1512 | * then the caller blanks by setting the CLUT (Color Look Up Table) |
| 1513 | * to all black. Return 0 if blanking succeeded, != 0 if un-/blanking |
| 1514 | * failed due to e.g. a video mode which doesn't support it. |
| 1515 | * Implements VESA suspend and powerdown modes on hardware that |
| 1516 | * supports disabling hsync/vsync: |
| 1517 | * blank_mode == 2: suspend vsync |
| 1518 | * blank_mode == 3: suspend hsync |
| 1519 | * blank_mode == 4: powerdown |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | */ |
| 1521 | unsigned char val; |
| 1522 | struct cirrusfb_info *cinfo = info->par; |
| 1523 | int current_mode = cinfo->blank_mode; |
| 1524 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1525 | DPRINTK("ENTER, blank mode = %d\n", blank_mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | |
| 1527 | if (info->state != FBINFO_STATE_RUNNING || |
| 1528 | current_mode == blank_mode) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1529 | DPRINTK("EXIT, returning 0\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1530 | return 0; |
| 1531 | } |
| 1532 | |
| 1533 | /* Undo current */ |
| 1534 | if (current_mode == FB_BLANK_NORMAL || |
| 1535 | current_mode == FB_BLANK_UNBLANK) { |
| 1536 | /* unblank the screen */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1537 | val = vga_rseq(cinfo->regbase, VGA_SEQ_CLOCK_MODE); |
| 1538 | /* clear "FullBandwidth" bit */ |
| 1539 | vga_wseq(cinfo->regbase, VGA_SEQ_CLOCK_MODE, val & 0xdf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | /* and undo VESA suspend trickery */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1541 | vga_wgfx(cinfo->regbase, CL_GRE, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | } |
| 1543 | |
| 1544 | /* set new */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1545 | if (blank_mode > FB_BLANK_NORMAL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1546 | /* blank the screen */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1547 | val = vga_rseq(cinfo->regbase, VGA_SEQ_CLOCK_MODE); |
| 1548 | /* set "FullBandwidth" bit */ |
| 1549 | vga_wseq(cinfo->regbase, VGA_SEQ_CLOCK_MODE, val | 0x20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1550 | } |
| 1551 | |
| 1552 | switch (blank_mode) { |
| 1553 | case FB_BLANK_UNBLANK: |
| 1554 | case FB_BLANK_NORMAL: |
| 1555 | break; |
| 1556 | case FB_BLANK_VSYNC_SUSPEND: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1557 | vga_wgfx(cinfo->regbase, CL_GRE, 0x04); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | break; |
| 1559 | case FB_BLANK_HSYNC_SUSPEND: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1560 | vga_wgfx(cinfo->regbase, CL_GRE, 0x02); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | break; |
| 1562 | case FB_BLANK_POWERDOWN: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1563 | vga_wgfx(cinfo->regbase, CL_GRE, 0x06); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | break; |
| 1565 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1566 | DPRINTK("EXIT, returning 1\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1567 | return 1; |
| 1568 | } |
| 1569 | |
| 1570 | cinfo->blank_mode = blank_mode; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1571 | DPRINTK("EXIT, returning 0\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | |
| 1573 | /* Let fbcon do a soft blank for us */ |
| 1574 | return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0; |
| 1575 | } |
| 1576 | /**** END Hardware specific Routines **************************************/ |
| 1577 | /****************************************************************************/ |
| 1578 | /**** BEGIN Internal Routines ***********************************************/ |
| 1579 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 1580 | static void init_vgachip(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1581 | { |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 1582 | struct cirrusfb_info *cinfo = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | const struct cirrusfb_board_info_rec *bi; |
| 1584 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1585 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1587 | assert(cinfo != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | |
| 1589 | bi = &cirrusfb_board_info[cinfo->btype]; |
| 1590 | |
| 1591 | /* reset board globally */ |
| 1592 | switch (cinfo->btype) { |
| 1593 | case BT_PICCOLO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1594 | WSFR(cinfo, 0x01); |
| 1595 | udelay(500); |
| 1596 | WSFR(cinfo, 0x51); |
| 1597 | udelay(500); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | break; |
| 1599 | case BT_PICASSO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1600 | WSFR2(cinfo, 0xff); |
| 1601 | udelay(500); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | break; |
| 1603 | case BT_SD64: |
| 1604 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1605 | WSFR(cinfo, 0x1f); |
| 1606 | udelay(500); |
| 1607 | WSFR(cinfo, 0x4f); |
| 1608 | udelay(500); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | break; |
| 1610 | case BT_PICASSO4: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1611 | /* disable flickerfixer */ |
| 1612 | vga_wcrt(cinfo->regbase, CL_CRT51, 0x00); |
| 1613 | mdelay(100); |
| 1614 | /* from Klaus' NetBSD driver: */ |
| 1615 | vga_wgfx(cinfo->regbase, CL_GR2F, 0x00); |
| 1616 | /* put blitter into 542x compat */ |
| 1617 | vga_wgfx(cinfo->regbase, CL_GR33, 0x00); |
| 1618 | /* mode */ |
| 1619 | vga_wgfx(cinfo->regbase, CL_GR31, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1620 | break; |
| 1621 | |
| 1622 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1623 | /* from Klaus' NetBSD driver: */ |
| 1624 | vga_wgfx(cinfo->regbase, CL_GR2F, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | break; |
| 1626 | |
| 1627 | case BT_ALPINE: |
| 1628 | /* Nothing to do to reset the board. */ |
| 1629 | break; |
| 1630 | |
| 1631 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1632 | printk(KERN_ERR "cirrusfb: Warning: Unknown board type\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1633 | break; |
| 1634 | } |
| 1635 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 1636 | /* make sure RAM size set by this point */ |
| 1637 | assert(info->screen_size > 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | |
| 1639 | /* the P4 is not fully initialized here; I rely on it having been */ |
| 1640 | /* inited under AmigaOS already, which seems to work just fine */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1641 | /* (Klaus advised to do it this way) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1642 | |
| 1643 | if (cinfo->btype != BT_PICASSO4) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1644 | WGen(cinfo, CL_VSSM, 0x10); /* EGS: 0x16 */ |
| 1645 | WGen(cinfo, CL_POS102, 0x01); |
| 1646 | WGen(cinfo, CL_VSSM, 0x08); /* EGS: 0x0e */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | |
| 1648 | if (cinfo->btype != BT_SD64) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1649 | WGen(cinfo, CL_VSSM2, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1651 | /* reset sequencer logic */ |
| 1652 | vga_wseq(cinfo->regbase, CL_SEQR0, 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1654 | /* FullBandwidth (video off) and 8/9 dot clock */ |
| 1655 | vga_wseq(cinfo->regbase, VGA_SEQ_CLOCK_MODE, 0x21); |
| 1656 | /* polarity (-/-), disable access to display memory, |
| 1657 | * VGA_CRTC_START_HI base address: color |
| 1658 | */ |
| 1659 | WGen(cinfo, VGA_MIS_W, 0xc1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1660 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1661 | /* "magic cookie" - doesn't make any sense to me.. */ |
| 1662 | /* vga_wgfx(cinfo->regbase, CL_GRA, 0xce); */ |
| 1663 | /* unlock all extension registers */ |
| 1664 | vga_wseq(cinfo->regbase, CL_SEQR6, 0x12); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1666 | /* reset blitter */ |
| 1667 | vga_wgfx(cinfo->regbase, CL_GR31, 0x04); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | |
| 1669 | switch (cinfo->btype) { |
| 1670 | case BT_GD5480: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1671 | vga_wseq(cinfo->regbase, CL_SEQRF, 0x98); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | break; |
| 1673 | case BT_ALPINE: |
| 1674 | break; |
| 1675 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1676 | vga_wseq(cinfo->regbase, CL_SEQRF, 0xb8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1677 | break; |
| 1678 | default: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1679 | vga_wseq(cinfo->regbase, CL_SEQR16, 0x0f); |
| 1680 | vga_wseq(cinfo->regbase, CL_SEQRF, 0xb0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | break; |
| 1682 | } |
| 1683 | } |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1684 | /* plane mask: nothing */ |
| 1685 | vga_wseq(cinfo->regbase, VGA_SEQ_PLANE_WRITE, 0xff); |
| 1686 | /* character map select: doesn't even matter in gx mode */ |
| 1687 | vga_wseq(cinfo->regbase, VGA_SEQ_CHARACTER_MAP, 0x00); |
| 1688 | /* memory mode: chain-4, no odd/even, ext. memory */ |
| 1689 | vga_wseq(cinfo->regbase, VGA_SEQ_MEMORY_MODE, 0x0e); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | |
| 1691 | /* controller-internal base address of video memory */ |
| 1692 | if (bi->init_sr07) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1693 | vga_wseq(cinfo->regbase, CL_SEQR7, bi->sr07); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1695 | /* vga_wseq(cinfo->regbase, CL_SEQR8, 0x00); */ |
| 1696 | /* EEPROM control: shouldn't be necessary to write to this at all.. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1698 | /* graphics cursor X position (incomplete; position gives rem. 3 bits */ |
| 1699 | vga_wseq(cinfo->regbase, CL_SEQR10, 0x00); |
| 1700 | /* graphics cursor Y position (..."... ) */ |
| 1701 | vga_wseq(cinfo->regbase, CL_SEQR11, 0x00); |
| 1702 | /* graphics cursor attributes */ |
| 1703 | vga_wseq(cinfo->regbase, CL_SEQR12, 0x00); |
| 1704 | /* graphics cursor pattern address */ |
| 1705 | vga_wseq(cinfo->regbase, CL_SEQR13, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | |
| 1707 | /* writing these on a P4 might give problems.. */ |
| 1708 | if (cinfo->btype != BT_PICASSO4) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1709 | /* configuration readback and ext. color */ |
| 1710 | vga_wseq(cinfo->regbase, CL_SEQR17, 0x00); |
| 1711 | /* signature generator */ |
| 1712 | vga_wseq(cinfo->regbase, CL_SEQR18, 0x02); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | } |
| 1714 | |
| 1715 | /* MCLK select etc. */ |
| 1716 | if (bi->init_sr1f) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1717 | vga_wseq(cinfo->regbase, CL_SEQR1F, bi->sr1f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1719 | /* Screen A preset row scan: none */ |
| 1720 | vga_wcrt(cinfo->regbase, VGA_CRTC_PRESET_ROW, 0x00); |
| 1721 | /* Text cursor start: disable text cursor */ |
| 1722 | vga_wcrt(cinfo->regbase, VGA_CRTC_CURSOR_START, 0x20); |
| 1723 | /* Text cursor end: - */ |
| 1724 | vga_wcrt(cinfo->regbase, VGA_CRTC_CURSOR_END, 0x00); |
| 1725 | /* Screen start address high: 0 */ |
| 1726 | vga_wcrt(cinfo->regbase, VGA_CRTC_START_HI, 0x00); |
| 1727 | /* Screen start address low: 0 */ |
| 1728 | vga_wcrt(cinfo->regbase, VGA_CRTC_START_LO, 0x00); |
| 1729 | /* text cursor location high: 0 */ |
| 1730 | vga_wcrt(cinfo->regbase, VGA_CRTC_CURSOR_HI, 0x00); |
| 1731 | /* text cursor location low: 0 */ |
| 1732 | vga_wcrt(cinfo->regbase, VGA_CRTC_CURSOR_LO, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1733 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1734 | /* Underline Row scanline: - */ |
| 1735 | vga_wcrt(cinfo->regbase, VGA_CRTC_UNDERLINE, 0x00); |
| 1736 | /* mode control: timing enable, byte mode, no compat modes */ |
| 1737 | vga_wcrt(cinfo->regbase, VGA_CRTC_MODE, 0xc3); |
| 1738 | /* Line Compare: not needed */ |
| 1739 | vga_wcrt(cinfo->regbase, VGA_CRTC_LINE_COMPARE, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | /* ### add 0x40 for text modes with > 30 MHz pixclock */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1741 | /* ext. display controls: ext.adr. wrap */ |
| 1742 | vga_wcrt(cinfo->regbase, CL_CRT1B, 0x02); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1744 | /* Set/Reset registes: - */ |
| 1745 | vga_wgfx(cinfo->regbase, VGA_GFX_SR_VALUE, 0x00); |
| 1746 | /* Set/Reset enable: - */ |
| 1747 | vga_wgfx(cinfo->regbase, VGA_GFX_SR_ENABLE, 0x00); |
| 1748 | /* Color Compare: - */ |
| 1749 | vga_wgfx(cinfo->regbase, VGA_GFX_COMPARE_VALUE, 0x00); |
| 1750 | /* Data Rotate: - */ |
| 1751 | vga_wgfx(cinfo->regbase, VGA_GFX_DATA_ROTATE, 0x00); |
| 1752 | /* Read Map Select: - */ |
| 1753 | vga_wgfx(cinfo->regbase, VGA_GFX_PLANE_READ, 0x00); |
| 1754 | /* Mode: conf. for 16/4/2 color mode, no odd/even, read/write mode 0 */ |
| 1755 | vga_wgfx(cinfo->regbase, VGA_GFX_MODE, 0x00); |
| 1756 | /* Miscellaneous: memory map base address, graphics mode */ |
| 1757 | vga_wgfx(cinfo->regbase, VGA_GFX_MISC, 0x01); |
| 1758 | /* Color Don't care: involve all planes */ |
| 1759 | vga_wgfx(cinfo->regbase, VGA_GFX_COMPARE_MASK, 0x0f); |
| 1760 | /* Bit Mask: no mask at all */ |
| 1761 | vga_wgfx(cinfo->regbase, VGA_GFX_BIT_MASK, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | if (cinfo->btype == BT_ALPINE) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1763 | /* (5434 can't have bit 3 set for bitblt) */ |
| 1764 | vga_wgfx(cinfo->regbase, CL_GRB, 0x20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | else |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1766 | /* Graphics controller mode extensions: finer granularity, |
| 1767 | * 8byte data latches |
| 1768 | */ |
| 1769 | vga_wgfx(cinfo->regbase, CL_GRB, 0x28); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1771 | vga_wgfx(cinfo->regbase, CL_GRC, 0xff); /* Color Key compare: - */ |
| 1772 | vga_wgfx(cinfo->regbase, CL_GRD, 0x00); /* Color Key compare mask: - */ |
| 1773 | vga_wgfx(cinfo->regbase, CL_GRE, 0x00); /* Miscellaneous control: - */ |
| 1774 | /* Background color byte 1: - */ |
| 1775 | /* vga_wgfx (cinfo->regbase, CL_GR10, 0x00); */ |
| 1776 | /* vga_wgfx (cinfo->regbase, CL_GR11, 0x00); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1778 | /* Attribute Controller palette registers: "identity mapping" */ |
| 1779 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE0, 0x00); |
| 1780 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE1, 0x01); |
| 1781 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE2, 0x02); |
| 1782 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE3, 0x03); |
| 1783 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE4, 0x04); |
| 1784 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE5, 0x05); |
| 1785 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE6, 0x06); |
| 1786 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE7, 0x07); |
| 1787 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE8, 0x08); |
| 1788 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTE9, 0x09); |
| 1789 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTEA, 0x0a); |
| 1790 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTEB, 0x0b); |
| 1791 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTEC, 0x0c); |
| 1792 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTED, 0x0d); |
| 1793 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTEE, 0x0e); |
| 1794 | vga_wattr(cinfo->regbase, VGA_ATC_PALETTEF, 0x0f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1796 | /* Attribute Controller mode: graphics mode */ |
| 1797 | vga_wattr(cinfo->regbase, VGA_ATC_MODE, 0x01); |
| 1798 | /* Overscan color reg.: reg. 0 */ |
| 1799 | vga_wattr(cinfo->regbase, VGA_ATC_OVERSCAN, 0x00); |
| 1800 | /* Color Plane enable: Enable all 4 planes */ |
| 1801 | vga_wattr(cinfo->regbase, VGA_ATC_PLANE_ENABLE, 0x0f); |
| 1802 | /* ### vga_wattr(cinfo->regbase, CL_AR33, 0x00); * Pixel Panning: - */ |
| 1803 | /* Color Select: - */ |
| 1804 | vga_wattr(cinfo->regbase, VGA_ATC_COLOR_PAGE, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1806 | WGen(cinfo, VGA_PEL_MSK, 0xff); /* Pixel mask: no mask */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1807 | |
| 1808 | if (cinfo->btype != BT_ALPINE && cinfo->btype != BT_GD5480) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1809 | /* polarity (-/-), enable display mem, |
| 1810 | * VGA_CRTC_START_HI i/o base = color |
| 1811 | */ |
| 1812 | WGen(cinfo, VGA_MIS_W, 0xc3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1814 | /* BLT Start/status: Blitter reset */ |
| 1815 | vga_wgfx(cinfo->regbase, CL_GR31, 0x04); |
| 1816 | /* - " - : "end-of-reset" */ |
| 1817 | vga_wgfx(cinfo->regbase, CL_GR31, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1818 | |
| 1819 | /* misc... */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1820 | WHDR(cinfo, 0); /* Hidden DAC register: - */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1821 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1822 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | return; |
| 1824 | } |
| 1825 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1826 | static void switch_monitor(struct cirrusfb_info *cinfo, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | { |
| 1828 | #ifdef CONFIG_ZORRO /* only works on Zorro boards */ |
| 1829 | static int IsOn = 0; /* XXX not ok for multiple boards */ |
| 1830 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1831 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1832 | |
| 1833 | if (cinfo->btype == BT_PICASSO4) |
| 1834 | return; /* nothing to switch */ |
| 1835 | if (cinfo->btype == BT_ALPINE) |
| 1836 | return; /* nothing to switch */ |
| 1837 | if (cinfo->btype == BT_GD5480) |
| 1838 | return; /* nothing to switch */ |
| 1839 | if (cinfo->btype == BT_PICASSO) { |
| 1840 | if ((on && !IsOn) || (!on && IsOn)) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1841 | WSFR(cinfo, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1843 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | return; |
| 1845 | } |
| 1846 | if (on) { |
| 1847 | switch (cinfo->btype) { |
| 1848 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1849 | WSFR(cinfo, cinfo->SFR | 0x21); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | break; |
| 1851 | case BT_PICCOLO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1852 | WSFR(cinfo, cinfo->SFR | 0x28); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | break; |
| 1854 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1855 | WSFR(cinfo, 0x6f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | break; |
| 1857 | default: /* do nothing */ break; |
| 1858 | } |
| 1859 | } else { |
| 1860 | switch (cinfo->btype) { |
| 1861 | case BT_SD64: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1862 | WSFR(cinfo, cinfo->SFR & 0xde); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | break; |
| 1864 | case BT_PICCOLO: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1865 | WSFR(cinfo, cinfo->SFR & 0xd7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1866 | break; |
| 1867 | case BT_SPECTRUM: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1868 | WSFR(cinfo, 0x4f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1869 | break; |
| 1870 | default: /* do nothing */ break; |
| 1871 | } |
| 1872 | } |
| 1873 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1874 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1875 | #endif /* CONFIG_ZORRO */ |
| 1876 | } |
| 1877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1878 | /******************************************/ |
| 1879 | /* Linux 2.6-style accelerated functions */ |
| 1880 | /******************************************/ |
| 1881 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1882 | static void cirrusfb_fillrect(struct fb_info *info, |
| 1883 | const struct fb_fillrect *region) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1884 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1885 | struct fb_fillrect modded; |
| 1886 | int vxres, vyres; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1887 | struct cirrusfb_info *cinfo = info->par; |
| 1888 | int m = info->var.bits_per_pixel; |
| 1889 | u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? |
| 1890 | cinfo->pseudo_palette[region->color] : region->color; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1891 | |
| 1892 | if (info->state != FBINFO_STATE_RUNNING) |
| 1893 | return; |
| 1894 | if (info->flags & FBINFO_HWACCEL_DISABLED) { |
| 1895 | cfb_fillrect(info, region); |
| 1896 | return; |
| 1897 | } |
| 1898 | |
| 1899 | vxres = info->var.xres_virtual; |
| 1900 | vyres = info->var.yres_virtual; |
| 1901 | |
| 1902 | memcpy(&modded, region, sizeof(struct fb_fillrect)); |
| 1903 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1904 | if (!modded.width || !modded.height || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | modded.dx >= vxres || modded.dy >= vyres) |
| 1906 | return; |
| 1907 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1908 | if (modded.dx + modded.width > vxres) |
| 1909 | modded.width = vxres - modded.dx; |
| 1910 | if (modded.dy + modded.height > vyres) |
| 1911 | modded.height = vyres - modded.dy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1913 | cirrusfb_RectFill(cinfo->regbase, |
| 1914 | info->var.bits_per_pixel, |
| 1915 | (region->dx * m) / 8, region->dy, |
| 1916 | (region->width * m) / 8, region->height, |
| 1917 | color, |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1918 | info->fix.line_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | } |
| 1920 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1921 | static void cirrusfb_copyarea(struct fb_info *info, |
| 1922 | const struct fb_copyarea *area) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | struct fb_copyarea modded; |
| 1925 | u32 vxres, vyres; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1926 | struct cirrusfb_info *cinfo = info->par; |
| 1927 | int m = info->var.bits_per_pixel; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1928 | |
| 1929 | if (info->state != FBINFO_STATE_RUNNING) |
| 1930 | return; |
| 1931 | if (info->flags & FBINFO_HWACCEL_DISABLED) { |
| 1932 | cfb_copyarea(info, area); |
| 1933 | return; |
| 1934 | } |
| 1935 | |
| 1936 | vxres = info->var.xres_virtual; |
| 1937 | vyres = info->var.yres_virtual; |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1938 | memcpy(&modded, area, sizeof(struct fb_copyarea)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1939 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1940 | if (!modded.width || !modded.height || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1941 | modded.sx >= vxres || modded.sy >= vyres || |
| 1942 | modded.dx >= vxres || modded.dy >= vyres) |
| 1943 | return; |
| 1944 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1945 | if (modded.sx + modded.width > vxres) |
| 1946 | modded.width = vxres - modded.sx; |
| 1947 | if (modded.dx + modded.width > vxres) |
| 1948 | modded.width = vxres - modded.dx; |
| 1949 | if (modded.sy + modded.height > vyres) |
| 1950 | modded.height = vyres - modded.sy; |
| 1951 | if (modded.dy + modded.height > vyres) |
| 1952 | modded.height = vyres - modded.dy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1953 | |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1954 | cirrusfb_BitBLT(cinfo->regbase, info->var.bits_per_pixel, |
| 1955 | (area->sx * m) / 8, area->sy, |
| 1956 | (area->dx * m) / 8, area->dy, |
| 1957 | (area->width * m) / 8, area->height, |
Krzysztof Helt | 0ff1ede | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1958 | info->fix.line_length); |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 1959 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | } |
| 1961 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1962 | static void cirrusfb_imageblit(struct fb_info *info, |
| 1963 | const struct fb_image *image) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1964 | { |
| 1965 | struct cirrusfb_info *cinfo = info->par; |
| 1966 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1967 | cirrusfb_WaitBLT(cinfo->regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1968 | cfb_imageblit(info, image); |
| 1969 | } |
| 1970 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | #ifdef CONFIG_PPC_PREP |
| 1972 | #define PREP_VIDEO_BASE ((volatile unsigned long) 0xC0000000) |
| 1973 | #define PREP_IO_BASE ((volatile unsigned char *) 0x80000000) |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1974 | static void get_prep_addrs(unsigned long *display, unsigned long *registers) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1976 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1977 | |
| 1978 | *display = PREP_VIDEO_BASE; |
| 1979 | *registers = (unsigned long) PREP_IO_BASE; |
| 1980 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1981 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1982 | } |
| 1983 | |
| 1984 | #endif /* CONFIG_PPC_PREP */ |
| 1985 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1986 | #ifdef CONFIG_PCI |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1987 | static int release_io_ports; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | |
| 1989 | /* Pulled the logic from XFree86 Cirrus driver to get the memory size, |
| 1990 | * based on the DRAM bandwidth bit and DRAM bank switching bit. This |
| 1991 | * works with 1MB, 2MB and 4MB configurations (which the Motorola boards |
| 1992 | * seem to have. */ |
Krzysztof Helt | c395d3e | 2008-10-15 22:03:39 -0700 | [diff] [blame] | 1993 | static unsigned int __devinit cirrusfb_get_memsize(u8 __iomem *regbase) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | { |
| 1995 | unsigned long mem; |
| 1996 | unsigned char SRF; |
| 1997 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 1998 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2000 | SRF = vga_rseq(regbase, CL_SEQRF); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2001 | switch ((SRF & 0x18)) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2002 | case 0x08: |
| 2003 | mem = 512 * 1024; |
| 2004 | break; |
| 2005 | case 0x10: |
| 2006 | mem = 1024 * 1024; |
| 2007 | break; |
| 2008 | /* 64-bit DRAM data bus width; assume 2MB. Also indicates 2MB memory |
| 2009 | * on the 5430. |
| 2010 | */ |
| 2011 | case 0x18: |
| 2012 | mem = 2048 * 1024; |
| 2013 | break; |
| 2014 | default: |
| 2015 | printk(KERN_WARNING "CLgenfb: Unknown memory size!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | mem = 1024 * 1024; |
| 2017 | } |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2018 | if (SRF & 0x80) |
| 2019 | /* If DRAM bank switching is enabled, there must be twice as much |
| 2020 | * memory installed. (4MB on the 5434) |
| 2021 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2022 | mem *= 2; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2023 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2024 | /* TODO: Handling of GD5446/5480 (see XF86 sources ...) */ |
| 2025 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2026 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2027 | return mem; |
| 2028 | } |
| 2029 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2030 | static void get_pci_addrs(const struct pci_dev *pdev, |
| 2031 | unsigned long *display, unsigned long *registers) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2033 | assert(pdev != NULL); |
| 2034 | assert(display != NULL); |
| 2035 | assert(registers != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2036 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2037 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2038 | |
| 2039 | *display = 0; |
| 2040 | *registers = 0; |
| 2041 | |
| 2042 | /* This is a best-guess for now */ |
| 2043 | |
| 2044 | if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) { |
| 2045 | *display = pci_resource_start(pdev, 1); |
| 2046 | *registers = pci_resource_start(pdev, 0); |
| 2047 | } else { |
| 2048 | *display = pci_resource_start(pdev, 0); |
| 2049 | *registers = pci_resource_start(pdev, 1); |
| 2050 | } |
| 2051 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2052 | assert(*display != 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2053 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2054 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | } |
| 2056 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2057 | static void cirrusfb_pci_unmap(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2058 | { |
Krzysztof Helt | 64beab1 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2059 | struct pci_dev *pdev = to_pci_dev(info->device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2060 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2061 | iounmap(info->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2062 | #if 0 /* if system didn't claim this region, we would... */ |
| 2063 | release_mem_region(0xA0000, 65535); |
| 2064 | #endif |
| 2065 | if (release_io_ports) |
| 2066 | release_region(0x3C0, 32); |
| 2067 | pci_release_regions(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | } |
| 2069 | #endif /* CONFIG_PCI */ |
| 2070 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2071 | #ifdef CONFIG_ZORRO |
Al Viro | d91f5bb | 2007-10-17 00:27:18 +0100 | [diff] [blame] | 2072 | static void __devexit cirrusfb_zorro_unmap(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2073 | { |
Al Viro | d91f5bb | 2007-10-17 00:27:18 +0100 | [diff] [blame] | 2074 | struct cirrusfb_info *cinfo = info->par; |
Krzysztof Helt | 64beab1 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2075 | struct zorro_dev *zdev = to_zorro_dev(info->device); |
| 2076 | |
| 2077 | zorro_release_device(zdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | |
| 2079 | if (cinfo->btype == BT_PICASSO4) { |
| 2080 | cinfo->regbase -= 0x600000; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2081 | iounmap((void *)cinfo->regbase); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2082 | iounmap(info->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | } else { |
Krzysztof Helt | 64beab1 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2084 | if (zorro_resource_start(zdev) > 0x01000000) |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2085 | iounmap(info->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | } |
| 2088 | #endif /* CONFIG_ZORRO */ |
| 2089 | |
Krzysztof Helt | c395d3e | 2008-10-15 22:03:39 -0700 | [diff] [blame] | 2090 | static int __devinit cirrusfb_set_fbinfo(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | { |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2092 | struct cirrusfb_info *cinfo = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2093 | struct fb_var_screeninfo *var = &info->var; |
| 2094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | info->pseudo_palette = cinfo->pseudo_palette; |
| 2096 | info->flags = FBINFO_DEFAULT |
| 2097 | | FBINFO_HWACCEL_XPAN |
| 2098 | | FBINFO_HWACCEL_YPAN |
| 2099 | | FBINFO_HWACCEL_FILLRECT |
| 2100 | | FBINFO_HWACCEL_COPYAREA; |
| 2101 | if (noaccel) |
| 2102 | info->flags |= FBINFO_HWACCEL_DISABLED; |
| 2103 | info->fbops = &cirrusfb_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2104 | if (cinfo->btype == BT_GD5480) { |
| 2105 | if (var->bits_per_pixel == 16) |
| 2106 | info->screen_base += 1 * MB_; |
Krzysztof Helt | 1cea9a9 | 2008-10-15 22:03:37 -0700 | [diff] [blame] | 2107 | if (var->bits_per_pixel == 32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2108 | info->screen_base += 2 * MB_; |
| 2109 | } |
| 2110 | |
| 2111 | /* Fill fix common fields */ |
| 2112 | strlcpy(info->fix.id, cirrusfb_board_info[cinfo->btype].name, |
| 2113 | sizeof(info->fix.id)); |
| 2114 | |
| 2115 | /* monochrome: only 1 memory plane */ |
| 2116 | /* 8 bit and above: Use whole memory area */ |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2117 | info->fix.smem_len = info->screen_size; |
| 2118 | if (var->bits_per_pixel == 1) |
| 2119 | info->fix.smem_len /= 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2120 | info->fix.type_aux = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2121 | info->fix.xpanstep = 1; |
| 2122 | info->fix.ypanstep = 1; |
| 2123 | info->fix.ywrapstep = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2124 | |
| 2125 | /* FIXME: map region at 0xB8000 if available, fill in here */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2126 | info->fix.mmio_len = 0; |
| 2127 | info->fix.accel = FB_ACCEL_NONE; |
| 2128 | |
| 2129 | fb_alloc_cmap(&info->cmap, 256, 0); |
| 2130 | |
| 2131 | return 0; |
| 2132 | } |
| 2133 | |
Krzysztof Helt | c395d3e | 2008-10-15 22:03:39 -0700 | [diff] [blame] | 2134 | static int __devinit cirrusfb_register(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2135 | { |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2136 | struct cirrusfb_info *cinfo = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2137 | int err; |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2138 | enum cirrus_board btype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2139 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2140 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2141 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2142 | printk(KERN_INFO "cirrusfb: Driver for Cirrus Logic based " |
| 2143 | "graphic boards, v" CIRRUSFB_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2145 | btype = cinfo->btype; |
| 2146 | |
| 2147 | /* sanity checks */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2148 | assert(btype != BT_NONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2149 | |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2150 | /* set all the vital stuff */ |
| 2151 | cirrusfb_set_fbinfo(info); |
| 2152 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2153 | DPRINTK("cirrusfb: (RAM start set to: 0x%p)\n", info->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2154 | |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2155 | err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); |
| 2156 | if (!err) { |
| 2157 | DPRINTK("wrong initial video mode\n"); |
| 2158 | err = -EINVAL; |
| 2159 | goto err_dealloc_cmap; |
| 2160 | } |
| 2161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2162 | info->var.activate = FB_ACTIVATE_NOW; |
| 2163 | |
| 2164 | err = cirrusfb_decode_var(&info->var, &cinfo->currentmode, info); |
| 2165 | if (err < 0) { |
| 2166 | /* should never happen */ |
| 2167 | DPRINTK("choking on default var... umm, no good.\n"); |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2168 | goto err_dealloc_cmap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2169 | } |
| 2170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2171 | err = register_framebuffer(info); |
| 2172 | if (err < 0) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2173 | printk(KERN_ERR "cirrusfb: could not register " |
| 2174 | "fb device; err = %d!\n", err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2175 | goto err_dealloc_cmap; |
| 2176 | } |
| 2177 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2178 | DPRINTK("EXIT, returning 0\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | return 0; |
| 2180 | |
| 2181 | err_dealloc_cmap: |
| 2182 | fb_dealloc_cmap(&info->cmap); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2183 | cinfo->unmap(info); |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 2184 | framebuffer_release(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | return err; |
| 2186 | } |
| 2187 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2188 | static void __devexit cirrusfb_cleanup(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2189 | { |
| 2190 | struct cirrusfb_info *cinfo = info->par; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2191 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2193 | switch_monitor(cinfo, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2194 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2195 | unregister_framebuffer(info); |
| 2196 | fb_dealloc_cmap(&info->cmap); |
| 2197 | printk("Framebuffer unregistered\n"); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2198 | cinfo->unmap(info); |
Krzysztof Helt | 060b600 | 2007-10-16 01:29:13 -0700 | [diff] [blame] | 2199 | framebuffer_release(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2201 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2202 | } |
| 2203 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | #ifdef CONFIG_PCI |
Krzysztof Helt | c395d3e | 2008-10-15 22:03:39 -0700 | [diff] [blame] | 2205 | static int __devinit cirrusfb_pci_register(struct pci_dev *pdev, |
| 2206 | const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2207 | { |
| 2208 | struct cirrusfb_info *cinfo; |
| 2209 | struct fb_info *info; |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2210 | enum cirrus_board btype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2211 | unsigned long board_addr, board_size; |
| 2212 | int ret; |
| 2213 | |
| 2214 | ret = pci_enable_device(pdev); |
| 2215 | if (ret < 0) { |
| 2216 | printk(KERN_ERR "cirrusfb: Cannot enable PCI device\n"); |
| 2217 | goto err_out; |
| 2218 | } |
| 2219 | |
| 2220 | info = framebuffer_alloc(sizeof(struct cirrusfb_info), &pdev->dev); |
| 2221 | if (!info) { |
| 2222 | printk(KERN_ERR "cirrusfb: could not allocate memory\n"); |
| 2223 | ret = -ENOMEM; |
| 2224 | goto err_disable; |
| 2225 | } |
| 2226 | |
| 2227 | cinfo = info->par; |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2228 | cinfo->btype = btype = (enum cirrus_board) ent->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2229 | |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2230 | DPRINTK(" Found PCI device, base address 0 is 0x%x, btype set to %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2231 | pdev->resource[0].start, btype); |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2232 | DPRINTK(" base address 1 is 0x%x\n", pdev->resource[1].start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2234 | if (isPReP) { |
| 2235 | pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, 0x00000000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2236 | #ifdef CONFIG_PPC_PREP |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2237 | get_prep_addrs(&board_addr, &info->fix.mmio_start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2238 | #endif |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2239 | /* PReP dies if we ioremap the IO registers, but it works w/out... */ |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2240 | cinfo->regbase = (char __iomem *) info->fix.mmio_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2241 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2242 | DPRINTK("Attempt to get PCI info for Cirrus Graphics Card\n"); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2243 | get_pci_addrs(pdev, &board_addr, &info->fix.mmio_start); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2244 | /* FIXME: this forces VGA. alternatives? */ |
| 2245 | cinfo->regbase = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | } |
| 2247 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2248 | DPRINTK("Board address: 0x%lx, register address: 0x%lx\n", |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2249 | board_addr, info->fix.mmio_start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2250 | |
| 2251 | board_size = (btype == BT_GD5480) ? |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2252 | 32 * MB_ : cirrusfb_get_memsize(cinfo->regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2253 | |
| 2254 | ret = pci_request_regions(pdev, "cirrusfb"); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2255 | if (ret < 0) { |
| 2256 | printk(KERN_ERR "cirrusfb: cannot reserve region 0x%lx, " |
| 2257 | "abort\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | board_addr); |
| 2259 | goto err_release_fb; |
| 2260 | } |
| 2261 | #if 0 /* if the system didn't claim this region, we would... */ |
| 2262 | if (!request_mem_region(0xA0000, 65535, "cirrusfb")) { |
| 2263 | printk(KERN_ERR "cirrusfb: cannot reserve region 0x%lx, abort\n" |
| 2264 | , |
| 2265 | 0xA0000L); |
| 2266 | ret = -EBUSY; |
| 2267 | goto err_release_regions; |
| 2268 | } |
| 2269 | #endif |
| 2270 | if (request_region(0x3C0, 32, "cirrusfb")) |
| 2271 | release_io_ports = 1; |
| 2272 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2273 | info->screen_base = ioremap(board_addr, board_size); |
| 2274 | if (!info->screen_base) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | ret = -EIO; |
| 2276 | goto err_release_legacy; |
| 2277 | } |
| 2278 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2279 | info->fix.smem_start = board_addr; |
| 2280 | info->screen_size = board_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2281 | cinfo->unmap = cirrusfb_pci_unmap; |
| 2282 | |
Philippe De Muyter | e59b6a5 | 2008-06-12 15:21:45 -0700 | [diff] [blame] | 2283 | printk(KERN_INFO "RAM (%lu kB) at 0x%lx, Cirrus " |
| 2284 | "Logic chipset on PCI bus\n", |
| 2285 | info->screen_size >> 10, board_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | pci_set_drvdata(pdev, info); |
| 2287 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2288 | ret = cirrusfb_register(info); |
Amol Lad | d8b8c0a | 2006-12-08 02:40:13 -0800 | [diff] [blame] | 2289 | if (ret) |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2290 | iounmap(info->screen_base); |
Amol Lad | d8b8c0a | 2006-12-08 02:40:13 -0800 | [diff] [blame] | 2291 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2292 | |
| 2293 | err_release_legacy: |
| 2294 | if (release_io_ports) |
| 2295 | release_region(0x3C0, 32); |
| 2296 | #if 0 |
| 2297 | release_mem_region(0xA0000, 65535); |
| 2298 | err_release_regions: |
| 2299 | #endif |
| 2300 | pci_release_regions(pdev); |
| 2301 | err_release_fb: |
| 2302 | framebuffer_release(info); |
| 2303 | err_disable: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2304 | err_out: |
| 2305 | return ret; |
| 2306 | } |
| 2307 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2308 | static void __devexit cirrusfb_pci_unregister(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2309 | { |
| 2310 | struct fb_info *info = pci_get_drvdata(pdev); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2311 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2312 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2313 | cirrusfb_cleanup(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2314 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2315 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2316 | } |
| 2317 | |
| 2318 | static struct pci_driver cirrusfb_pci_driver = { |
| 2319 | .name = "cirrusfb", |
| 2320 | .id_table = cirrusfb_pci_table, |
| 2321 | .probe = cirrusfb_pci_register, |
| 2322 | .remove = __devexit_p(cirrusfb_pci_unregister), |
| 2323 | #ifdef CONFIG_PM |
| 2324 | #if 0 |
| 2325 | .suspend = cirrusfb_pci_suspend, |
| 2326 | .resume = cirrusfb_pci_resume, |
| 2327 | #endif |
| 2328 | #endif |
| 2329 | }; |
| 2330 | #endif /* CONFIG_PCI */ |
| 2331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2332 | #ifdef CONFIG_ZORRO |
Krzysztof Helt | c395d3e | 2008-10-15 22:03:39 -0700 | [diff] [blame] | 2333 | static int __devinit cirrusfb_zorro_register(struct zorro_dev *z, |
| 2334 | const struct zorro_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2335 | { |
| 2336 | struct cirrusfb_info *cinfo; |
| 2337 | struct fb_info *info; |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 2338 | enum cirrus_board btype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2339 | struct zorro_dev *z2 = NULL; |
| 2340 | unsigned long board_addr, board_size, size; |
| 2341 | int ret; |
| 2342 | |
| 2343 | btype = ent->driver_data; |
| 2344 | if (cirrusfb_zorro_table2[btype].id2) |
| 2345 | z2 = zorro_find_device(cirrusfb_zorro_table2[btype].id2, NULL); |
| 2346 | size = cirrusfb_zorro_table2[btype].size; |
| 2347 | printk(KERN_INFO "cirrusfb: %s board detected; ", |
| 2348 | cirrusfb_board_info[btype].name); |
| 2349 | |
| 2350 | info = framebuffer_alloc(sizeof(struct cirrusfb_info), &z->dev); |
| 2351 | if (!info) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2352 | printk(KERN_ERR "cirrusfb: could not allocate memory\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2353 | ret = -ENOMEM; |
| 2354 | goto err_out; |
| 2355 | } |
| 2356 | |
| 2357 | cinfo = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | cinfo->btype = btype; |
| 2359 | |
Al Viro | 36ea96a | 2007-10-27 19:46:58 +0100 | [diff] [blame] | 2360 | assert(z); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2361 | assert(btype != BT_NONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | board_addr = zorro_resource_start(z); |
| 2364 | board_size = zorro_resource_len(z); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2365 | info->screen_size = size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2366 | |
| 2367 | if (!zorro_request_device(z, "cirrusfb")) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2368 | printk(KERN_ERR "cirrusfb: cannot reserve region 0x%lx, " |
| 2369 | "abort\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | board_addr); |
| 2371 | ret = -EBUSY; |
| 2372 | goto err_release_fb; |
| 2373 | } |
| 2374 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2375 | printk(" RAM (%lu MB) at $%lx, ", board_size / MB_, board_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2376 | |
| 2377 | ret = -EIO; |
| 2378 | |
| 2379 | if (btype == BT_PICASSO4) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2380 | printk(KERN_INFO " REG at $%lx\n", board_addr + 0x600000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2381 | |
| 2382 | /* To be precise, for the P4 this is not the */ |
| 2383 | /* begin of the board, but the begin of RAM. */ |
| 2384 | /* for P4, map in its address space in 2 chunks (### TEST! ) */ |
| 2385 | /* (note the ugly hardcoded 16M number) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2386 | cinfo->regbase = ioremap(board_addr, 16777216); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2387 | if (!cinfo->regbase) |
| 2388 | goto err_release_region; |
| 2389 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2390 | DPRINTK("cirrusfb: Virtual address for board set to: $%p\n", |
| 2391 | cinfo->regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | cinfo->regbase += 0x600000; |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2393 | info->fix.mmio_start = board_addr + 0x600000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2394 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2395 | info->fix.smem_start = board_addr + 16777216; |
| 2396 | info->screen_base = ioremap(info->fix.smem_start, 16777216); |
| 2397 | if (!info->screen_base) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | goto err_unmap_regbase; |
| 2399 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2400 | printk(KERN_INFO " REG at $%lx\n", |
| 2401 | (unsigned long) z2->resource.start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2402 | |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2403 | info->fix.smem_start = board_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2404 | if (board_addr > 0x01000000) |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2405 | info->screen_base = ioremap(board_addr, board_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2406 | else |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2407 | info->screen_base = (caddr_t) ZTWO_VADDR(board_addr); |
| 2408 | if (!info->screen_base) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2409 | goto err_release_region; |
| 2410 | |
| 2411 | /* set address for REG area of board */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2412 | cinfo->regbase = (caddr_t) ZTWO_VADDR(z2->resource.start); |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2413 | info->fix.mmio_start = z2->resource.start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2415 | DPRINTK("cirrusfb: Virtual address for board set to: $%p\n", |
| 2416 | cinfo->regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2417 | } |
| 2418 | cinfo->unmap = cirrusfb_zorro_unmap; |
| 2419 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2420 | printk(KERN_INFO "Cirrus Logic chipset on Zorro bus\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | zorro_set_drvdata(z, info); |
| 2422 | |
Al Viro | d91f5bb | 2007-10-17 00:27:18 +0100 | [diff] [blame] | 2423 | ret = cirrusfb_register(info); |
Amol Lad | d8b8c0a | 2006-12-08 02:40:13 -0800 | [diff] [blame] | 2424 | if (ret) { |
| 2425 | if (btype == BT_PICASSO4) { |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2426 | iounmap(info->screen_base); |
Amol Lad | d8b8c0a | 2006-12-08 02:40:13 -0800 | [diff] [blame] | 2427 | iounmap(cinfo->regbase - 0x600000); |
| 2428 | } else if (board_addr > 0x01000000) |
Krzysztof Helt | 9199ec5 | 2007-10-16 01:29:12 -0700 | [diff] [blame] | 2429 | iounmap(info->screen_base); |
Amol Lad | d8b8c0a | 2006-12-08 02:40:13 -0800 | [diff] [blame] | 2430 | } |
| 2431 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | |
| 2433 | err_unmap_regbase: |
| 2434 | /* Parental advisory: explicit hack */ |
| 2435 | iounmap(cinfo->regbase - 0x600000); |
| 2436 | err_release_region: |
| 2437 | release_region(board_addr, board_size); |
| 2438 | err_release_fb: |
| 2439 | framebuffer_release(info); |
| 2440 | err_out: |
| 2441 | return ret; |
| 2442 | } |
| 2443 | |
| 2444 | void __devexit cirrusfb_zorro_unregister(struct zorro_dev *z) |
| 2445 | { |
| 2446 | struct fb_info *info = zorro_get_drvdata(z); |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2447 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2449 | cirrusfb_cleanup(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2451 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2452 | } |
| 2453 | |
| 2454 | static struct zorro_driver cirrusfb_zorro_driver = { |
| 2455 | .name = "cirrusfb", |
| 2456 | .id_table = cirrusfb_zorro_table, |
| 2457 | .probe = cirrusfb_zorro_register, |
| 2458 | .remove = __devexit_p(cirrusfb_zorro_unregister), |
| 2459 | }; |
| 2460 | #endif /* CONFIG_ZORRO */ |
| 2461 | |
| 2462 | static int __init cirrusfb_init(void) |
| 2463 | { |
| 2464 | int error = 0; |
| 2465 | |
| 2466 | #ifndef MODULE |
| 2467 | char *option = NULL; |
| 2468 | |
| 2469 | if (fb_get_options("cirrusfb", &option)) |
| 2470 | return -ENODEV; |
| 2471 | cirrusfb_setup(option); |
| 2472 | #endif |
| 2473 | |
| 2474 | #ifdef CONFIG_ZORRO |
Bjorn Helgaas | 33d8675 | 2006-03-25 03:07:20 -0800 | [diff] [blame] | 2475 | error |= zorro_register_driver(&cirrusfb_zorro_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2476 | #endif |
| 2477 | #ifdef CONFIG_PCI |
| 2478 | error |= pci_register_driver(&cirrusfb_pci_driver); |
| 2479 | #endif |
| 2480 | return error; |
| 2481 | } |
| 2482 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2483 | #ifndef MODULE |
| 2484 | static int __init cirrusfb_setup(char *options) { |
| 2485 | char *this_opt, s[32]; |
| 2486 | int i; |
| 2487 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2488 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2489 | |
| 2490 | if (!options || !*options) |
| 2491 | return 0; |
| 2492 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2493 | while ((this_opt = strsep(&options, ",")) != NULL) { |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2494 | if (!*this_opt) |
| 2495 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2496 | |
| 2497 | DPRINTK("cirrusfb_setup: option '%s'\n", this_opt); |
| 2498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2499 | if (!strcmp(this_opt, "noaccel")) |
| 2500 | noaccel = 1; |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2501 | else if (!strncmp(this_opt, "mode:", 5)) |
| 2502 | mode_option = this_opt + 5; |
| 2503 | else |
| 2504 | mode_option = this_opt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2505 | } |
| 2506 | return 0; |
| 2507 | } |
| 2508 | #endif |
| 2509 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2510 | /* |
| 2511 | * Modularization |
| 2512 | */ |
| 2513 | |
| 2514 | MODULE_AUTHOR("Copyright 1999,2000 Jeff Garzik <jgarzik@pobox.com>"); |
| 2515 | MODULE_DESCRIPTION("Accelerated FBDev driver for Cirrus Logic chips"); |
| 2516 | MODULE_LICENSE("GPL"); |
| 2517 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2518 | static void __exit cirrusfb_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2519 | { |
| 2520 | #ifdef CONFIG_PCI |
| 2521 | pci_unregister_driver(&cirrusfb_pci_driver); |
| 2522 | #endif |
| 2523 | #ifdef CONFIG_ZORRO |
| 2524 | zorro_unregister_driver(&cirrusfb_zorro_driver); |
| 2525 | #endif |
| 2526 | } |
| 2527 | |
| 2528 | module_init(cirrusfb_init); |
| 2529 | |
Krzysztof Helt | a1d35a7 | 2008-10-15 22:03:38 -0700 | [diff] [blame] | 2530 | module_param(mode_option, charp, 0); |
| 2531 | MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); |
| 2532 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2533 | #ifdef MODULE |
| 2534 | module_exit(cirrusfb_exit); |
| 2535 | #endif |
| 2536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | /**********************************************************************/ |
| 2538 | /* about the following functions - I have used the same names for the */ |
| 2539 | /* functions as Markus Wild did in his Retina driver for NetBSD as */ |
| 2540 | /* they just made sense for this purpose. Apart from that, I wrote */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2541 | /* these functions myself. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2542 | /**********************************************************************/ |
| 2543 | |
| 2544 | /*** WGen() - write into one of the external/general registers ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2545 | static void WGen(const struct cirrusfb_info *cinfo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | int regnum, unsigned char val) |
| 2547 | { |
| 2548 | unsigned long regofs = 0; |
| 2549 | |
| 2550 | if (cinfo->btype == BT_PICASSO) { |
| 2551 | /* Picasso II specific hack */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2552 | /* if (regnum == VGA_PEL_IR || regnum == VGA_PEL_D || |
| 2553 | regnum == CL_VSSM2) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2554 | if (regnum == VGA_PEL_IR || regnum == VGA_PEL_D) |
| 2555 | regofs = 0xfff; |
| 2556 | } |
| 2557 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2558 | vga_w(cinfo->regbase, regofs + regnum, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2559 | } |
| 2560 | |
| 2561 | /*** RGen() - read out one of the external/general registers ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2562 | static unsigned char RGen(const struct cirrusfb_info *cinfo, int regnum) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | { |
| 2564 | unsigned long regofs = 0; |
| 2565 | |
| 2566 | if (cinfo->btype == BT_PICASSO) { |
| 2567 | /* Picasso II specific hack */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2568 | /* if (regnum == VGA_PEL_IR || regnum == VGA_PEL_D || |
| 2569 | regnum == CL_VSSM2) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | if (regnum == VGA_PEL_IR || regnum == VGA_PEL_D) |
| 2571 | regofs = 0xfff; |
| 2572 | } |
| 2573 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2574 | return vga_r(cinfo->regbase, regofs + regnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | } |
| 2576 | |
| 2577 | /*** AttrOn() - turn on VideoEnable for Attribute controller ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2578 | static void AttrOn(const struct cirrusfb_info *cinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2579 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2580 | assert(cinfo != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2581 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2582 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2584 | if (vga_rcrt(cinfo->regbase, CL_CRT24) & 0x80) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2585 | /* if we're just in "write value" mode, write back the */ |
| 2586 | /* same value as before to not modify anything */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2587 | vga_w(cinfo->regbase, VGA_ATT_IW, |
| 2588 | vga_r(cinfo->regbase, VGA_ATT_R)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2589 | } |
| 2590 | /* turn on video bit */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2591 | /* vga_w(cinfo->regbase, VGA_ATT_IW, 0x20); */ |
| 2592 | vga_w(cinfo->regbase, VGA_ATT_IW, 0x33); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2593 | |
| 2594 | /* dummy write on Reg0 to be on "write index" mode next time */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2595 | vga_w(cinfo->regbase, VGA_ATT_IW, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2596 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2597 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2598 | } |
| 2599 | |
| 2600 | /*** WHDR() - write into the Hidden DAC register ***/ |
| 2601 | /* as the HDR is the only extension register that requires special treatment |
| 2602 | * (the other extension registers are accessible just like the "ordinary" |
| 2603 | * registers of their functional group) here is a specialized routine for |
| 2604 | * accessing the HDR |
| 2605 | */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2606 | static void WHDR(const struct cirrusfb_info *cinfo, unsigned char val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2607 | { |
| 2608 | unsigned char dummy; |
| 2609 | |
| 2610 | if (cinfo->btype == BT_PICASSO) { |
| 2611 | /* Klaus' hint for correct access to HDR on some boards */ |
| 2612 | /* first write 0 to pixel mask (3c6) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2613 | WGen(cinfo, VGA_PEL_MSK, 0x00); |
| 2614 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | /* next read dummy from pixel address (3c8) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2616 | dummy = RGen(cinfo, VGA_PEL_IW); |
| 2617 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2618 | } |
| 2619 | /* now do the usual stuff to access the HDR */ |
| 2620 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2621 | dummy = RGen(cinfo, VGA_PEL_MSK); |
| 2622 | udelay(200); |
| 2623 | dummy = RGen(cinfo, VGA_PEL_MSK); |
| 2624 | udelay(200); |
| 2625 | dummy = RGen(cinfo, VGA_PEL_MSK); |
| 2626 | udelay(200); |
| 2627 | dummy = RGen(cinfo, VGA_PEL_MSK); |
| 2628 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2629 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2630 | WGen(cinfo, VGA_PEL_MSK, val); |
| 2631 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2632 | |
| 2633 | if (cinfo->btype == BT_PICASSO) { |
| 2634 | /* now first reset HDR access counter */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2635 | dummy = RGen(cinfo, VGA_PEL_IW); |
| 2636 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | |
| 2638 | /* and at the end, restore the mask value */ |
| 2639 | /* ## is this mask always 0xff? */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2640 | WGen(cinfo, VGA_PEL_MSK, 0xff); |
| 2641 | udelay(200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2642 | } |
| 2643 | } |
| 2644 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2645 | /*** WSFR() - write to the "special function register" (SFR) ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2646 | static void WSFR(struct cirrusfb_info *cinfo, unsigned char val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2647 | { |
| 2648 | #ifdef CONFIG_ZORRO |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2649 | assert(cinfo->regbase != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2650 | cinfo->SFR = val; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2651 | z_writeb(val, cinfo->regbase + 0x8000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2652 | #endif |
| 2653 | } |
| 2654 | |
| 2655 | /* The Picasso has a second register for switching the monitor bit */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2656 | static void WSFR2(struct cirrusfb_info *cinfo, unsigned char val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2657 | { |
| 2658 | #ifdef CONFIG_ZORRO |
| 2659 | /* writing an arbitrary value to this one causes the monitor switcher */ |
| 2660 | /* to flip to Amiga display */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2661 | assert(cinfo->regbase != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2662 | cinfo->SFR = val; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2663 | z_writeb(val, cinfo->regbase + 0x9000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2664 | #endif |
| 2665 | } |
| 2666 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2667 | /*** WClut - set CLUT entry (range: 0..63) ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2668 | static void WClut(struct cirrusfb_info *cinfo, unsigned char regnum, unsigned char red, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2669 | unsigned char green, unsigned char blue) |
| 2670 | { |
| 2671 | unsigned int data = VGA_PEL_D; |
| 2672 | |
| 2673 | /* address write mode register is not translated.. */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2674 | vga_w(cinfo->regbase, VGA_PEL_IW, regnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2675 | |
| 2676 | if (cinfo->btype == BT_PICASSO || cinfo->btype == BT_PICASSO4 || |
| 2677 | cinfo->btype == BT_ALPINE || cinfo->btype == BT_GD5480) { |
| 2678 | /* but DAC data register IS, at least for Picasso II */ |
| 2679 | if (cinfo->btype == BT_PICASSO) |
| 2680 | data += 0xfff; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2681 | vga_w(cinfo->regbase, data, red); |
| 2682 | vga_w(cinfo->regbase, data, green); |
| 2683 | vga_w(cinfo->regbase, data, blue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2685 | vga_w(cinfo->regbase, data, blue); |
| 2686 | vga_w(cinfo->regbase, data, green); |
| 2687 | vga_w(cinfo->regbase, data, red); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2688 | } |
| 2689 | } |
| 2690 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2691 | #if 0 |
| 2692 | /*** RClut - read CLUT entry (range 0..63) ***/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2693 | static void RClut(struct cirrusfb_info *cinfo, unsigned char regnum, unsigned char *red, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2694 | unsigned char *green, unsigned char *blue) |
| 2695 | { |
| 2696 | unsigned int data = VGA_PEL_D; |
| 2697 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2698 | vga_w(cinfo->regbase, VGA_PEL_IR, regnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | |
| 2700 | if (cinfo->btype == BT_PICASSO || cinfo->btype == BT_PICASSO4 || |
| 2701 | cinfo->btype == BT_ALPINE || cinfo->btype == BT_GD5480) { |
| 2702 | if (cinfo->btype == BT_PICASSO) |
| 2703 | data += 0xfff; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2704 | *red = vga_r(cinfo->regbase, data); |
| 2705 | *green = vga_r(cinfo->regbase, data); |
| 2706 | *blue = vga_r(cinfo->regbase, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2707 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2708 | *blue = vga_r(cinfo->regbase, data); |
| 2709 | *green = vga_r(cinfo->regbase, data); |
| 2710 | *red = vga_r(cinfo->regbase, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2711 | } |
| 2712 | } |
| 2713 | #endif |
| 2714 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2715 | /******************************************************************* |
| 2716 | cirrusfb_WaitBLT() |
| 2717 | |
| 2718 | Wait for the BitBLT engine to complete a possible earlier job |
| 2719 | *********************************************************************/ |
| 2720 | |
| 2721 | /* FIXME: use interrupts instead */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2722 | static void cirrusfb_WaitBLT(u8 __iomem *regbase) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | { |
| 2724 | /* now busy-wait until we're done */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2725 | while (vga_rgfx(regbase, CL_GR31) & 0x08) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | /* do nothing */ ; |
| 2727 | } |
| 2728 | |
| 2729 | /******************************************************************* |
| 2730 | cirrusfb_BitBLT() |
| 2731 | |
| 2732 | perform accelerated "scrolling" |
| 2733 | ********************************************************************/ |
| 2734 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2735 | static void cirrusfb_BitBLT(u8 __iomem *regbase, int bits_per_pixel, |
| 2736 | u_short curx, u_short cury, |
| 2737 | u_short destx, u_short desty, |
| 2738 | u_short width, u_short height, |
| 2739 | u_short line_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2740 | { |
| 2741 | u_short nwidth, nheight; |
| 2742 | u_long nsrc, ndest; |
| 2743 | u_char bltmode; |
| 2744 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2745 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2746 | |
| 2747 | nwidth = width - 1; |
| 2748 | nheight = height - 1; |
| 2749 | |
| 2750 | bltmode = 0x00; |
| 2751 | /* if source adr < dest addr, do the Blt backwards */ |
| 2752 | if (cury <= desty) { |
| 2753 | if (cury == desty) { |
| 2754 | /* if src and dest are on the same line, check x */ |
| 2755 | if (curx < destx) |
| 2756 | bltmode |= 0x01; |
| 2757 | } else |
| 2758 | bltmode |= 0x01; |
| 2759 | } |
| 2760 | if (!bltmode) { |
| 2761 | /* standard case: forward blitting */ |
| 2762 | nsrc = (cury * line_length) + curx; |
| 2763 | ndest = (desty * line_length) + destx; |
| 2764 | } else { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2765 | /* this means start addresses are at the end, |
| 2766 | * counting backwards |
| 2767 | */ |
| 2768 | nsrc = cury * line_length + curx + |
| 2769 | nheight * line_length + nwidth; |
| 2770 | ndest = desty * line_length + destx + |
| 2771 | nheight * line_length + nwidth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | } |
| 2773 | |
| 2774 | /* |
| 2775 | run-down of registers to be programmed: |
| 2776 | destination pitch |
| 2777 | source pitch |
| 2778 | BLT width/height |
| 2779 | source start |
| 2780 | destination start |
| 2781 | BLT mode |
| 2782 | BLT ROP |
| 2783 | VGA_GFX_SR_VALUE / VGA_GFX_SR_ENABLE: "fill color" |
| 2784 | start/stop |
| 2785 | */ |
| 2786 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2787 | cirrusfb_WaitBLT(regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2788 | |
| 2789 | /* pitch: set to line_length */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2790 | /* dest pitch low */ |
| 2791 | vga_wgfx(regbase, CL_GR24, line_length & 0xff); |
| 2792 | /* dest pitch hi */ |
| 2793 | vga_wgfx(regbase, CL_GR25, line_length >> 8); |
| 2794 | /* source pitch low */ |
| 2795 | vga_wgfx(regbase, CL_GR26, line_length & 0xff); |
| 2796 | /* source pitch hi */ |
| 2797 | vga_wgfx(regbase, CL_GR27, line_length >> 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2798 | |
| 2799 | /* BLT width: actual number of pixels - 1 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2800 | /* BLT width low */ |
| 2801 | vga_wgfx(regbase, CL_GR20, nwidth & 0xff); |
| 2802 | /* BLT width hi */ |
| 2803 | vga_wgfx(regbase, CL_GR21, nwidth >> 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2804 | |
| 2805 | /* BLT height: actual number of lines -1 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2806 | /* BLT height low */ |
| 2807 | vga_wgfx(regbase, CL_GR22, nheight & 0xff); |
| 2808 | /* BLT width hi */ |
| 2809 | vga_wgfx(regbase, CL_GR23, nheight >> 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2810 | |
| 2811 | /* BLT destination */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2812 | /* BLT dest low */ |
| 2813 | vga_wgfx(regbase, CL_GR28, (u_char) (ndest & 0xff)); |
| 2814 | /* BLT dest mid */ |
| 2815 | vga_wgfx(regbase, CL_GR29, (u_char) (ndest >> 8)); |
| 2816 | /* BLT dest hi */ |
| 2817 | vga_wgfx(regbase, CL_GR2A, (u_char) (ndest >> 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2818 | |
| 2819 | /* BLT source */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2820 | /* BLT src low */ |
| 2821 | vga_wgfx(regbase, CL_GR2C, (u_char) (nsrc & 0xff)); |
| 2822 | /* BLT src mid */ |
| 2823 | vga_wgfx(regbase, CL_GR2D, (u_char) (nsrc >> 8)); |
| 2824 | /* BLT src hi */ |
| 2825 | vga_wgfx(regbase, CL_GR2E, (u_char) (nsrc >> 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | |
| 2827 | /* BLT mode */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2828 | vga_wgfx(regbase, CL_GR30, bltmode); /* BLT mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | |
| 2830 | /* BLT ROP: SrcCopy */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2831 | vga_wgfx(regbase, CL_GR32, 0x0d); /* BLT ROP */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | |
| 2833 | /* and finally: GO! */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2834 | vga_wgfx(regbase, CL_GR31, 0x02); /* BLT Start/status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2835 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2836 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2837 | } |
| 2838 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2839 | /******************************************************************* |
| 2840 | cirrusfb_RectFill() |
| 2841 | |
| 2842 | perform accelerated rectangle fill |
| 2843 | ********************************************************************/ |
| 2844 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2845 | static void cirrusfb_RectFill(u8 __iomem *regbase, int bits_per_pixel, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2846 | u_short x, u_short y, u_short width, u_short height, |
| 2847 | u_char color, u_short line_length) |
| 2848 | { |
| 2849 | u_short nwidth, nheight; |
| 2850 | u_long ndest; |
| 2851 | u_char op; |
| 2852 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2853 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | |
| 2855 | nwidth = width - 1; |
| 2856 | nheight = height - 1; |
| 2857 | |
| 2858 | ndest = (y * line_length) + x; |
| 2859 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2860 | cirrusfb_WaitBLT(regbase); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2861 | |
| 2862 | /* pitch: set to line_length */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2863 | vga_wgfx(regbase, CL_GR24, line_length & 0xff); /* dest pitch low */ |
| 2864 | vga_wgfx(regbase, CL_GR25, line_length >> 8); /* dest pitch hi */ |
| 2865 | vga_wgfx(regbase, CL_GR26, line_length & 0xff); /* source pitch low */ |
| 2866 | vga_wgfx(regbase, CL_GR27, line_length >> 8); /* source pitch hi */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2867 | |
| 2868 | /* BLT width: actual number of pixels - 1 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2869 | vga_wgfx(regbase, CL_GR20, nwidth & 0xff); /* BLT width low */ |
| 2870 | vga_wgfx(regbase, CL_GR21, nwidth >> 8); /* BLT width hi */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2871 | |
| 2872 | /* BLT height: actual number of lines -1 */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2873 | vga_wgfx(regbase, CL_GR22, nheight & 0xff); /* BLT height low */ |
| 2874 | vga_wgfx(regbase, CL_GR23, nheight >> 8); /* BLT width hi */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | |
| 2876 | /* BLT destination */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2877 | /* BLT dest low */ |
| 2878 | vga_wgfx(regbase, CL_GR28, (u_char) (ndest & 0xff)); |
| 2879 | /* BLT dest mid */ |
| 2880 | vga_wgfx(regbase, CL_GR29, (u_char) (ndest >> 8)); |
| 2881 | /* BLT dest hi */ |
| 2882 | vga_wgfx(regbase, CL_GR2A, (u_char) (ndest >> 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | |
| 2884 | /* BLT source: set to 0 (is a dummy here anyway) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2885 | vga_wgfx(regbase, CL_GR2C, 0x00); /* BLT src low */ |
| 2886 | vga_wgfx(regbase, CL_GR2D, 0x00); /* BLT src mid */ |
| 2887 | vga_wgfx(regbase, CL_GR2E, 0x00); /* BLT src hi */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2888 | |
| 2889 | /* This is a ColorExpand Blt, using the */ |
| 2890 | /* same color for foreground and background */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2891 | vga_wgfx(regbase, VGA_GFX_SR_VALUE, color); /* foreground color */ |
| 2892 | vga_wgfx(regbase, VGA_GFX_SR_ENABLE, color); /* background color */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2893 | |
| 2894 | op = 0xc0; |
| 2895 | if (bits_per_pixel == 16) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2896 | vga_wgfx(regbase, CL_GR10, color); /* foreground color */ |
| 2897 | vga_wgfx(regbase, CL_GR11, color); /* background color */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2898 | op = 0x50; |
| 2899 | op = 0xd0; |
| 2900 | } else if (bits_per_pixel == 32) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2901 | vga_wgfx(regbase, CL_GR10, color); /* foreground color */ |
| 2902 | vga_wgfx(regbase, CL_GR11, color); /* background color */ |
| 2903 | vga_wgfx(regbase, CL_GR12, color); /* foreground color */ |
| 2904 | vga_wgfx(regbase, CL_GR13, color); /* background color */ |
| 2905 | vga_wgfx(regbase, CL_GR14, 0); /* foreground color */ |
| 2906 | vga_wgfx(regbase, CL_GR15, 0); /* background color */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | op = 0x50; |
| 2908 | op = 0xf0; |
| 2909 | } |
| 2910 | /* BLT mode: color expand, Enable 8x8 copy (faster?) */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2911 | vga_wgfx(regbase, CL_GR30, op); /* BLT mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2912 | |
| 2913 | /* BLT ROP: SrcCopy */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2914 | vga_wgfx(regbase, CL_GR32, 0x0d); /* BLT ROP */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2915 | |
| 2916 | /* and finally: GO! */ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2917 | vga_wgfx(regbase, CL_GR31, 0x02); /* BLT Start/status */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2918 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2919 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2920 | } |
| 2921 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2922 | /************************************************************************** |
| 2923 | * bestclock() - determine closest possible clock lower(?) than the |
| 2924 | * desired pixel clock |
| 2925 | **************************************************************************/ |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2926 | static void bestclock(long freq, long *best, long *nom, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2927 | long *den, long *div, long maxfreq) |
| 2928 | { |
| 2929 | long n, h, d, f; |
| 2930 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2931 | assert(best != NULL); |
| 2932 | assert(nom != NULL); |
| 2933 | assert(den != NULL); |
| 2934 | assert(div != NULL); |
| 2935 | assert(maxfreq > 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2936 | |
| 2937 | *nom = 0; |
| 2938 | *den = 0; |
| 2939 | *div = 0; |
| 2940 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2941 | DPRINTK("ENTER\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2942 | |
| 2943 | if (freq < 8000) |
| 2944 | freq = 8000; |
| 2945 | |
| 2946 | if (freq > maxfreq) |
| 2947 | freq = maxfreq; |
| 2948 | |
| 2949 | *best = 0; |
| 2950 | f = freq * 10; |
| 2951 | |
| 2952 | for (n = 32; n < 128; n++) { |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2953 | int s = 0; |
| 2954 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | d = (143181 * n) / f; |
| 2956 | if ((d >= 7) && (d <= 63)) { |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2957 | int temp = d; |
| 2958 | |
| 2959 | if (temp > 31) { |
| 2960 | s = 1; |
| 2961 | temp >>= 1; |
| 2962 | } |
| 2963 | h = ((14318 * n) / temp) >> s; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2964 | if (abs(h - freq) < abs(*best - freq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2965 | *best = h; |
| 2966 | *nom = n; |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2967 | *den = temp; |
| 2968 | *div = s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2969 | } |
| 2970 | } |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2971 | d++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2972 | if ((d >= 7) && (d <= 63)) { |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2973 | if (d > 31) { |
| 2974 | s = 1; |
| 2975 | d >>= 1; |
| 2976 | } |
| 2977 | h = ((14318 * n) / d) >> s; |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2978 | if (abs(h - freq) < abs(*best - freq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2979 | *best = h; |
| 2980 | *nom = n; |
Krzysztof Helt | 7528f54 | 2008-10-15 22:03:36 -0700 | [diff] [blame] | 2981 | *den = d; |
| 2982 | *div = s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2983 | } |
| 2984 | } |
| 2985 | } |
| 2986 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2987 | DPRINTK("Best possible values for given frequency:\n"); |
| 2988 | DPRINTK(" best: %ld kHz nom: %ld den: %ld div: %ld\n", |
| 2989 | freq, *nom, *den, *div); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2990 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 2991 | DPRINTK("EXIT\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2992 | } |
| 2993 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2994 | /* ------------------------------------------------------------------------- |
| 2995 | * |
| 2996 | * debugging functions |
| 2997 | * |
| 2998 | * ------------------------------------------------------------------------- |
| 2999 | */ |
| 3000 | |
| 3001 | #ifdef CIRRUSFB_DEBUG |
| 3002 | |
| 3003 | /** |
| 3004 | * cirrusfb_dbg_print_byte |
| 3005 | * @name: name associated with byte value to be displayed |
| 3006 | * @val: byte value to be displayed |
| 3007 | * |
| 3008 | * DESCRIPTION: |
| 3009 | * Display an indented string, along with a hexidecimal byte value, and |
| 3010 | * its decoded bits. Bits 7 through 0 are listed in left-to-right |
| 3011 | * order. |
| 3012 | */ |
| 3013 | |
| 3014 | static |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3015 | void cirrusfb_dbg_print_byte(const char *name, unsigned char val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3016 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3017 | DPRINTK("%8s = 0x%02X (bits 7-0: %c%c%c%c%c%c%c%c)\n", |
| 3018 | name, val, |
| 3019 | val & 0x80 ? '1' : '0', |
| 3020 | val & 0x40 ? '1' : '0', |
| 3021 | val & 0x20 ? '1' : '0', |
| 3022 | val & 0x10 ? '1' : '0', |
| 3023 | val & 0x08 ? '1' : '0', |
| 3024 | val & 0x04 ? '1' : '0', |
| 3025 | val & 0x02 ? '1' : '0', |
| 3026 | val & 0x01 ? '1' : '0'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3027 | } |
| 3028 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3029 | /** |
| 3030 | * cirrusfb_dbg_print_regs |
| 3031 | * @base: If using newmmio, the newmmio base address, otherwise %NULL |
| 3032 | * @reg_class: type of registers to read: %CRT, or %SEQ |
| 3033 | * |
| 3034 | * DESCRIPTION: |
| 3035 | * Dumps the given list of VGA CRTC registers. If @base is %NULL, |
| 3036 | * old-style I/O ports are queried for information, otherwise MMIO is |
| 3037 | * used at the given @base address to query the information. |
| 3038 | */ |
| 3039 | |
| 3040 | static |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3041 | void cirrusfb_dbg_print_regs(caddr_t regbase, |
Krzysztof Helt | 7345de3 | 2007-10-16 01:29:11 -0700 | [diff] [blame] | 3042 | enum cirrusfb_dbg_reg_class reg_class, ...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3043 | { |
| 3044 | va_list list; |
| 3045 | unsigned char val = 0; |
| 3046 | unsigned reg; |
| 3047 | char *name; |
| 3048 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3049 | va_start(list, reg_class); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3050 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3051 | name = va_arg(list, char *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3052 | while (name != NULL) { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3053 | reg = va_arg(list, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3054 | |
| 3055 | switch (reg_class) { |
| 3056 | case CRT: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3057 | val = vga_rcrt(regbase, (unsigned char) reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3058 | break; |
| 3059 | case SEQ: |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3060 | val = vga_rseq(regbase, (unsigned char) reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3061 | break; |
| 3062 | default: |
| 3063 | /* should never occur */ |
Richard Knutsson | c930faa | 2007-05-08 00:38:29 -0700 | [diff] [blame] | 3064 | assert(false); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3065 | break; |
| 3066 | } |
| 3067 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3068 | cirrusfb_dbg_print_byte(name, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3069 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3070 | name = va_arg(list, char *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3071 | } |
| 3072 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3073 | va_end(list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3074 | } |
| 3075 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3076 | /** |
| 3077 | * cirrusfb_dump |
| 3078 | * @cirrusfbinfo: |
| 3079 | * |
| 3080 | * DESCRIPTION: |
| 3081 | */ |
| 3082 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3083 | static void cirrusfb_dump(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3084 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3085 | cirrusfb_dbg_reg_dump(NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3086 | } |
| 3087 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3088 | /** |
| 3089 | * cirrusfb_dbg_reg_dump |
| 3090 | * @base: If using newmmio, the newmmio base address, otherwise %NULL |
| 3091 | * |
| 3092 | * DESCRIPTION: |
| 3093 | * Dumps a list of interesting VGA and CIRRUSFB registers. If @base is %NULL, |
| 3094 | * old-style I/O ports are queried for information, otherwise MMIO is |
| 3095 | * used at the given @base address to query the information. |
| 3096 | */ |
| 3097 | |
| 3098 | static |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3099 | void cirrusfb_dbg_reg_dump(caddr_t regbase) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3100 | { |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3101 | DPRINTK("CIRRUSFB VGA CRTC register dump:\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3102 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3103 | cirrusfb_dbg_print_regs(regbase, CRT, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3104 | "CR00", 0x00, |
| 3105 | "CR01", 0x01, |
| 3106 | "CR02", 0x02, |
| 3107 | "CR03", 0x03, |
| 3108 | "CR04", 0x04, |
| 3109 | "CR05", 0x05, |
| 3110 | "CR06", 0x06, |
| 3111 | "CR07", 0x07, |
| 3112 | "CR08", 0x08, |
| 3113 | "CR09", 0x09, |
| 3114 | "CR0A", 0x0A, |
| 3115 | "CR0B", 0x0B, |
| 3116 | "CR0C", 0x0C, |
| 3117 | "CR0D", 0x0D, |
| 3118 | "CR0E", 0x0E, |
| 3119 | "CR0F", 0x0F, |
| 3120 | "CR10", 0x10, |
| 3121 | "CR11", 0x11, |
| 3122 | "CR12", 0x12, |
| 3123 | "CR13", 0x13, |
| 3124 | "CR14", 0x14, |
| 3125 | "CR15", 0x15, |
| 3126 | "CR16", 0x16, |
| 3127 | "CR17", 0x17, |
| 3128 | "CR18", 0x18, |
| 3129 | "CR22", 0x22, |
| 3130 | "CR24", 0x24, |
| 3131 | "CR26", 0x26, |
| 3132 | "CR2D", 0x2D, |
| 3133 | "CR2E", 0x2E, |
| 3134 | "CR2F", 0x2F, |
| 3135 | "CR30", 0x30, |
| 3136 | "CR31", 0x31, |
| 3137 | "CR32", 0x32, |
| 3138 | "CR33", 0x33, |
| 3139 | "CR34", 0x34, |
| 3140 | "CR35", 0x35, |
| 3141 | "CR36", 0x36, |
| 3142 | "CR37", 0x37, |
| 3143 | "CR38", 0x38, |
| 3144 | "CR39", 0x39, |
| 3145 | "CR3A", 0x3A, |
| 3146 | "CR3B", 0x3B, |
| 3147 | "CR3C", 0x3C, |
| 3148 | "CR3D", 0x3D, |
| 3149 | "CR3E", 0x3E, |
| 3150 | "CR3F", 0x3F, |
| 3151 | NULL); |
| 3152 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3153 | DPRINTK("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3154 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3155 | DPRINTK("CIRRUSFB VGA SEQ register dump:\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3156 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3157 | cirrusfb_dbg_print_regs(regbase, SEQ, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3158 | "SR00", 0x00, |
| 3159 | "SR01", 0x01, |
| 3160 | "SR02", 0x02, |
| 3161 | "SR03", 0x03, |
| 3162 | "SR04", 0x04, |
| 3163 | "SR08", 0x08, |
| 3164 | "SR09", 0x09, |
| 3165 | "SR0A", 0x0A, |
| 3166 | "SR0B", 0x0B, |
| 3167 | "SR0D", 0x0D, |
| 3168 | "SR10", 0x10, |
| 3169 | "SR11", 0x11, |
| 3170 | "SR12", 0x12, |
| 3171 | "SR13", 0x13, |
| 3172 | "SR14", 0x14, |
| 3173 | "SR15", 0x15, |
| 3174 | "SR16", 0x16, |
| 3175 | "SR17", 0x17, |
| 3176 | "SR18", 0x18, |
| 3177 | "SR19", 0x19, |
| 3178 | "SR1A", 0x1A, |
| 3179 | "SR1B", 0x1B, |
| 3180 | "SR1C", 0x1C, |
| 3181 | "SR1D", 0x1D, |
| 3182 | "SR1E", 0x1E, |
| 3183 | "SR1F", 0x1F, |
| 3184 | NULL); |
| 3185 | |
Krzysztof Helt | 8503df6 | 2007-10-16 01:29:08 -0700 | [diff] [blame] | 3186 | DPRINTK("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3187 | } |
| 3188 | |
| 3189 | #endif /* CIRRUSFB_DEBUG */ |
| 3190 | |