Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/cyber2000fb.c |
| 3 | * |
| 4 | * Copyright (C) 1998-2002 Russell King |
| 5 | * |
| 6 | * MIPS and 50xx clock support |
| 7 | * Copyright (C) 2001 Bradley D. LaRonde <brad@ltc.com> |
| 8 | * |
| 9 | * 32 bit support, text color and panning fixes for modes != 8 bit |
| 10 | * Copyright (C) 2002 Denis Oliver Kropp <dok@directfb.org> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2 as |
| 14 | * published by the Free Software Foundation. |
| 15 | * |
| 16 | * Integraphics CyberPro 2000, 2010 and 5000 frame buffer device |
| 17 | * |
| 18 | * Based on cyberfb.c. |
| 19 | * |
| 20 | * Note that we now use the new fbcon fix, var and cmap scheme. We do |
| 21 | * still have to check which console is the currently displayed one |
| 22 | * however, especially for the colourmap stuff. |
| 23 | * |
| 24 | * We also use the new hotplug PCI subsystem. I'm not sure if there |
| 25 | * are any such cards, but I'm erring on the side of caution. We don't |
| 26 | * want to go pop just because someone does have one. |
| 27 | * |
| 28 | * Note that this doesn't work fully in the case of multiple CyberPro |
| 29 | * cards with grabbers. We currently can only attach to the first |
| 30 | * CyberPro card found. |
| 31 | * |
| 32 | * When we're in truecolour mode, we power down the LUT RAM as a power |
| 33 | * saving feature. Also, when we enter any of the powersaving modes |
| 34 | * (except soft blanking) we power down the RAMDACs. This saves about |
| 35 | * 1W, which is roughly 8% of the power consumption of a NetWinder |
| 36 | * (which, incidentally, is about the same saving as a 2.5in hard disk |
| 37 | * entering standby mode.) |
| 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/pci.h> |
| 48 | #include <linux/init.h> |
Russell King | 9973022 | 2009-03-25 10:21:35 +0000 | [diff] [blame] | 49 | #include <linux/io.h> |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 50 | #include <linux/i2c.h> |
| 51 | #include <linux/i2c-algo-bit.h> |
| 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/pgtable.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | #ifdef __arm__ |
| 56 | #include <asm/mach-types.h> |
| 57 | #endif |
| 58 | |
| 59 | #include "cyber2000fb.h" |
| 60 | |
| 61 | struct cfb_info { |
| 62 | struct fb_info fb; |
| 63 | struct display_switch *dispsw; |
| 64 | struct display *display; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 65 | unsigned char __iomem *region; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | unsigned char __iomem *regs; |
| 67 | u_int id; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 68 | u_int irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | int func_use_count; |
| 70 | u_long ref_ps; |
| 71 | |
| 72 | /* |
| 73 | * Clock divisors |
| 74 | */ |
| 75 | u_int divisors[4]; |
| 76 | |
| 77 | struct { |
| 78 | u8 red, green, blue; |
| 79 | } palette[NR_PALETTE]; |
| 80 | |
| 81 | u_char mem_ctl1; |
| 82 | u_char mem_ctl2; |
| 83 | u_char mclk_mult; |
| 84 | u_char mclk_div; |
| 85 | /* |
| 86 | * RAMDAC control register is both of these or'ed together |
| 87 | */ |
| 88 | u_char ramdac_ctrl; |
| 89 | u_char ramdac_powerdown; |
Russell King | eca02b0 | 2005-05-03 12:23:56 +0100 | [diff] [blame] | 90 | |
| 91 | u32 pseudo_palette[16]; |
Russell King | 052a7f5 | 2011-01-28 21:23:56 +0000 | [diff] [blame] | 92 | |
| 93 | spinlock_t reg_b0_lock; |
| 94 | |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 95 | #ifdef CONFIG_FB_CYBER2000_DDC |
| 96 | bool ddc_registered; |
| 97 | struct i2c_adapter ddc_adapter; |
| 98 | struct i2c_algo_bit_data ddc_algo; |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 99 | #endif |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 100 | |
| 101 | #ifdef CONFIG_FB_CYBER2000_I2C |
| 102 | struct i2c_adapter i2c_adapter; |
| 103 | struct i2c_algo_bit_data i2c_algo; |
| 104 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | static char *default_font = "Acorn8x8"; |
| 108 | module_param(default_font, charp, 0); |
| 109 | MODULE_PARM_DESC(default_font, "Default font name"); |
| 110 | |
| 111 | /* |
| 112 | * Our access methods. |
| 113 | */ |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 114 | #define cyber2000fb_writel(val, reg, cfb) writel(val, (cfb)->regs + (reg)) |
| 115 | #define cyber2000fb_writew(val, reg, cfb) writew(val, (cfb)->regs + (reg)) |
| 116 | #define cyber2000fb_writeb(val, reg, cfb) writeb(val, (cfb)->regs + (reg)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 118 | #define cyber2000fb_readb(reg, cfb) readb((cfb)->regs + (reg)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
| 120 | static inline void |
| 121 | cyber2000_crtcw(unsigned int reg, unsigned int val, struct cfb_info *cfb) |
| 122 | { |
| 123 | cyber2000fb_writew((reg & 255) | val << 8, 0x3d4, cfb); |
| 124 | } |
| 125 | |
| 126 | static inline void |
| 127 | cyber2000_grphw(unsigned int reg, unsigned int val, struct cfb_info *cfb) |
| 128 | { |
| 129 | cyber2000fb_writew((reg & 255) | val << 8, 0x3ce, cfb); |
| 130 | } |
| 131 | |
| 132 | static inline unsigned int |
| 133 | cyber2000_grphr(unsigned int reg, struct cfb_info *cfb) |
| 134 | { |
| 135 | cyber2000fb_writeb(reg, 0x3ce, cfb); |
| 136 | return cyber2000fb_readb(0x3cf, cfb); |
| 137 | } |
| 138 | |
| 139 | static inline void |
| 140 | cyber2000_attrw(unsigned int reg, unsigned int val, struct cfb_info *cfb) |
| 141 | { |
| 142 | cyber2000fb_readb(0x3da, cfb); |
| 143 | cyber2000fb_writeb(reg, 0x3c0, cfb); |
| 144 | cyber2000fb_readb(0x3c1, cfb); |
| 145 | cyber2000fb_writeb(val, 0x3c0, cfb); |
| 146 | } |
| 147 | |
| 148 | static inline void |
| 149 | cyber2000_seqw(unsigned int reg, unsigned int val, struct cfb_info *cfb) |
| 150 | { |
| 151 | cyber2000fb_writew((reg & 255) | val << 8, 0x3c4, cfb); |
| 152 | } |
| 153 | |
| 154 | /* -------------------- Hardware specific routines ------------------------- */ |
| 155 | |
| 156 | /* |
| 157 | * Hardware Cyber2000 Acceleration |
| 158 | */ |
| 159 | static void |
| 160 | cyber2000fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 161 | { |
| 162 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 163 | unsigned long dst, col; |
| 164 | |
| 165 | if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) { |
| 166 | cfb_fillrect(info, rect); |
| 167 | return; |
| 168 | } |
| 169 | |
| 170 | cyber2000fb_writeb(0, CO_REG_CONTROL, cfb); |
| 171 | cyber2000fb_writew(rect->width - 1, CO_REG_PIXWIDTH, cfb); |
| 172 | cyber2000fb_writew(rect->height - 1, CO_REG_PIXHEIGHT, cfb); |
| 173 | |
| 174 | col = rect->color; |
| 175 | if (cfb->fb.var.bits_per_pixel > 8) |
| 176 | col = ((u32 *)cfb->fb.pseudo_palette)[col]; |
| 177 | cyber2000fb_writel(col, CO_REG_FGCOLOUR, cfb); |
| 178 | |
| 179 | dst = rect->dx + rect->dy * cfb->fb.var.xres_virtual; |
| 180 | if (cfb->fb.var.bits_per_pixel == 24) { |
| 181 | cyber2000fb_writeb(dst, CO_REG_X_PHASE, cfb); |
| 182 | dst *= 3; |
| 183 | } |
| 184 | |
| 185 | cyber2000fb_writel(dst, CO_REG_DEST_PTR, cfb); |
| 186 | cyber2000fb_writeb(CO_FG_MIX_SRC, CO_REG_FGMIX, cfb); |
| 187 | cyber2000fb_writew(CO_CMD_L_PATTERN_FGCOL, CO_REG_CMD_L, cfb); |
| 188 | cyber2000fb_writew(CO_CMD_H_BLITTER, CO_REG_CMD_H, cfb); |
| 189 | } |
| 190 | |
| 191 | static void |
| 192 | cyber2000fb_copyarea(struct fb_info *info, const struct fb_copyarea *region) |
| 193 | { |
| 194 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 195 | unsigned int cmd = CO_CMD_L_PATTERN_FGCOL; |
| 196 | unsigned long src, dst; |
| 197 | |
| 198 | if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) { |
| 199 | cfb_copyarea(info, region); |
| 200 | return; |
| 201 | } |
| 202 | |
| 203 | cyber2000fb_writeb(0, CO_REG_CONTROL, cfb); |
| 204 | cyber2000fb_writew(region->width - 1, CO_REG_PIXWIDTH, cfb); |
| 205 | cyber2000fb_writew(region->height - 1, CO_REG_PIXHEIGHT, cfb); |
| 206 | |
| 207 | src = region->sx + region->sy * cfb->fb.var.xres_virtual; |
| 208 | dst = region->dx + region->dy * cfb->fb.var.xres_virtual; |
| 209 | |
| 210 | if (region->sx < region->dx) { |
| 211 | src += region->width - 1; |
| 212 | dst += region->width - 1; |
| 213 | cmd |= CO_CMD_L_INC_LEFT; |
| 214 | } |
| 215 | |
| 216 | if (region->sy < region->dy) { |
| 217 | src += (region->height - 1) * cfb->fb.var.xres_virtual; |
| 218 | dst += (region->height - 1) * cfb->fb.var.xres_virtual; |
| 219 | cmd |= CO_CMD_L_INC_UP; |
| 220 | } |
| 221 | |
| 222 | if (cfb->fb.var.bits_per_pixel == 24) { |
| 223 | cyber2000fb_writeb(dst, CO_REG_X_PHASE, cfb); |
| 224 | src *= 3; |
| 225 | dst *= 3; |
| 226 | } |
| 227 | cyber2000fb_writel(src, CO_REG_SRC1_PTR, cfb); |
| 228 | cyber2000fb_writel(dst, CO_REG_DEST_PTR, cfb); |
| 229 | cyber2000fb_writew(CO_FG_MIX_SRC, CO_REG_FGMIX, cfb); |
| 230 | cyber2000fb_writew(cmd, CO_REG_CMD_L, cfb); |
| 231 | cyber2000fb_writew(CO_CMD_H_FGSRCMAP | CO_CMD_H_BLITTER, |
| 232 | CO_REG_CMD_H, cfb); |
| 233 | } |
| 234 | |
| 235 | static void |
| 236 | cyber2000fb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 237 | { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 238 | cfb_imageblit(info, image); |
| 239 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | static int cyber2000fb_sync(struct fb_info *info) |
| 243 | { |
| 244 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 245 | int count = 100000; |
| 246 | |
| 247 | if (!(cfb->fb.var.accel_flags & FB_ACCELF_TEXT)) |
| 248 | return 0; |
| 249 | |
| 250 | while (cyber2000fb_readb(CO_REG_CONTROL, cfb) & CO_CTRL_BUSY) { |
| 251 | if (!count--) { |
| 252 | debug_printf("accel_wait timed out\n"); |
| 253 | cyber2000fb_writeb(0, CO_REG_CONTROL, cfb); |
| 254 | break; |
| 255 | } |
| 256 | udelay(1); |
| 257 | } |
| 258 | return 0; |
| 259 | } |
| 260 | |
| 261 | /* |
| 262 | * =========================================================================== |
| 263 | */ |
| 264 | |
| 265 | static inline u32 convert_bitfield(u_int val, struct fb_bitfield *bf) |
| 266 | { |
| 267 | u_int mask = (1 << bf->length) - 1; |
| 268 | |
| 269 | return (val >> (16 - bf->length) & mask) << bf->offset; |
| 270 | } |
| 271 | |
| 272 | /* |
| 273 | * Set a single color register. Return != 0 for invalid regno. |
| 274 | */ |
| 275 | static int |
| 276 | cyber2000fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 277 | u_int transp, struct fb_info *info) |
| 278 | { |
| 279 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 280 | struct fb_var_screeninfo *var = &cfb->fb.var; |
| 281 | u32 pseudo_val; |
| 282 | int ret = 1; |
| 283 | |
| 284 | switch (cfb->fb.fix.visual) { |
| 285 | default: |
| 286 | return 1; |
| 287 | |
| 288 | /* |
| 289 | * Pseudocolour: |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 290 | * 8 8 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | * pixel --/--+--/--> red lut --> red dac |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 292 | * | 8 |
| 293 | * +--/--> green lut --> green dac |
| 294 | * | 8 |
| 295 | * +--/--> blue lut --> blue dac |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | */ |
| 297 | case FB_VISUAL_PSEUDOCOLOR: |
| 298 | if (regno >= NR_PALETTE) |
| 299 | return 1; |
| 300 | |
| 301 | red >>= 8; |
| 302 | green >>= 8; |
| 303 | blue >>= 8; |
| 304 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 305 | cfb->palette[regno].red = red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | cfb->palette[regno].green = green; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 307 | cfb->palette[regno].blue = blue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
| 309 | cyber2000fb_writeb(regno, 0x3c8, cfb); |
| 310 | cyber2000fb_writeb(red, 0x3c9, cfb); |
| 311 | cyber2000fb_writeb(green, 0x3c9, cfb); |
| 312 | cyber2000fb_writeb(blue, 0x3c9, cfb); |
| 313 | return 0; |
| 314 | |
| 315 | /* |
| 316 | * Direct colour: |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 317 | * n rl |
| 318 | * pixel --/--+--/--> red lut --> red dac |
| 319 | * | gl |
| 320 | * +--/--> green lut --> green dac |
| 321 | * | bl |
| 322 | * +--/--> blue lut --> blue dac |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | * n = bpp, rl = red length, gl = green length, bl = blue length |
| 324 | */ |
| 325 | case FB_VISUAL_DIRECTCOLOR: |
| 326 | red >>= 8; |
| 327 | green >>= 8; |
| 328 | blue >>= 8; |
| 329 | |
| 330 | if (var->green.length == 6 && regno < 64) { |
| 331 | cfb->palette[regno << 2].green = green; |
| 332 | |
| 333 | /* |
| 334 | * The 6 bits of the green component are applied |
| 335 | * to the high 6 bits of the LUT. |
| 336 | */ |
| 337 | cyber2000fb_writeb(regno << 2, 0x3c8, cfb); |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 338 | cyber2000fb_writeb(cfb->palette[regno >> 1].red, |
| 339 | 0x3c9, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | cyber2000fb_writeb(green, 0x3c9, cfb); |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 341 | cyber2000fb_writeb(cfb->palette[regno >> 1].blue, |
| 342 | 0x3c9, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | green = cfb->palette[regno << 3].green; |
| 345 | |
| 346 | ret = 0; |
| 347 | } |
| 348 | |
| 349 | if (var->green.length >= 5 && regno < 32) { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 350 | cfb->palette[regno << 3].red = red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | cfb->palette[regno << 3].green = green; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 352 | cfb->palette[regno << 3].blue = blue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | |
| 354 | /* |
| 355 | * The 5 bits of each colour component are |
| 356 | * applied to the high 5 bits of the LUT. |
| 357 | */ |
| 358 | cyber2000fb_writeb(regno << 3, 0x3c8, cfb); |
| 359 | cyber2000fb_writeb(red, 0x3c9, cfb); |
| 360 | cyber2000fb_writeb(green, 0x3c9, cfb); |
| 361 | cyber2000fb_writeb(blue, 0x3c9, cfb); |
| 362 | ret = 0; |
| 363 | } |
| 364 | |
| 365 | if (var->green.length == 4 && regno < 16) { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 366 | cfb->palette[regno << 4].red = red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | cfb->palette[regno << 4].green = green; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 368 | cfb->palette[regno << 4].blue = blue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
| 370 | /* |
| 371 | * The 5 bits of each colour component are |
| 372 | * applied to the high 5 bits of the LUT. |
| 373 | */ |
| 374 | cyber2000fb_writeb(regno << 4, 0x3c8, cfb); |
| 375 | cyber2000fb_writeb(red, 0x3c9, cfb); |
| 376 | cyber2000fb_writeb(green, 0x3c9, cfb); |
| 377 | cyber2000fb_writeb(blue, 0x3c9, cfb); |
| 378 | ret = 0; |
| 379 | } |
| 380 | |
| 381 | /* |
| 382 | * Since this is only used for the first 16 colours, we |
| 383 | * don't have to care about overflowing for regno >= 32 |
| 384 | */ |
| 385 | pseudo_val = regno << var->red.offset | |
| 386 | regno << var->green.offset | |
| 387 | regno << var->blue.offset; |
| 388 | break; |
| 389 | |
| 390 | /* |
| 391 | * True colour: |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 392 | * n rl |
| 393 | * pixel --/--+--/--> red dac |
| 394 | * | gl |
| 395 | * +--/--> green dac |
| 396 | * | bl |
| 397 | * +--/--> blue dac |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | * n = bpp, rl = red length, gl = green length, bl = blue length |
| 399 | */ |
| 400 | case FB_VISUAL_TRUECOLOR: |
| 401 | pseudo_val = convert_bitfield(transp ^ 0xffff, &var->transp); |
| 402 | pseudo_val |= convert_bitfield(red, &var->red); |
| 403 | pseudo_val |= convert_bitfield(green, &var->green); |
| 404 | pseudo_val |= convert_bitfield(blue, &var->blue); |
Ondrej Zary | e76df4d | 2010-07-29 22:40:54 +0200 | [diff] [blame] | 405 | ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | break; |
| 407 | } |
| 408 | |
| 409 | /* |
| 410 | * Now set our pseudo palette for the CFB16/24/32 drivers. |
| 411 | */ |
| 412 | if (regno < 16) |
| 413 | ((u32 *)cfb->fb.pseudo_palette)[regno] = pseudo_val; |
| 414 | |
| 415 | return ret; |
| 416 | } |
| 417 | |
| 418 | struct par_info { |
| 419 | /* |
| 420 | * Hardware |
| 421 | */ |
| 422 | u_char clock_mult; |
| 423 | u_char clock_div; |
| 424 | u_char extseqmisc; |
| 425 | u_char co_pixfmt; |
| 426 | u_char crtc_ofl; |
| 427 | u_char crtc[19]; |
| 428 | u_int width; |
| 429 | u_int pitch; |
| 430 | u_int fetch; |
| 431 | |
| 432 | /* |
| 433 | * Other |
| 434 | */ |
| 435 | u_char ramdac; |
| 436 | }; |
| 437 | |
| 438 | static const u_char crtc_idx[] = { |
| 439 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 440 | 0x08, 0x09, |
| 441 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18 |
| 442 | }; |
| 443 | |
| 444 | static void cyber2000fb_write_ramdac_ctrl(struct cfb_info *cfb) |
| 445 | { |
| 446 | unsigned int i; |
| 447 | unsigned int val = cfb->ramdac_ctrl | cfb->ramdac_powerdown; |
| 448 | |
| 449 | cyber2000fb_writeb(0x56, 0x3ce, cfb); |
| 450 | i = cyber2000fb_readb(0x3cf, cfb); |
| 451 | cyber2000fb_writeb(i | 4, 0x3cf, cfb); |
| 452 | cyber2000fb_writeb(val, 0x3c6, cfb); |
| 453 | cyber2000fb_writeb(i, 0x3cf, cfb); |
Ondrej Zary | 00b4703 | 2010-07-29 22:32:20 +0200 | [diff] [blame] | 454 | /* prevent card lock-up observed on x86 with CyberPro 2000 */ |
| 455 | cyber2000fb_readb(0x3cf, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | static void cyber2000fb_set_timing(struct cfb_info *cfb, struct par_info *hw) |
| 459 | { |
| 460 | u_int i; |
| 461 | |
| 462 | /* |
| 463 | * Blank palette |
| 464 | */ |
| 465 | for (i = 0; i < NR_PALETTE; i++) { |
| 466 | cyber2000fb_writeb(i, 0x3c8, cfb); |
| 467 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 468 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 469 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 470 | } |
| 471 | |
| 472 | cyber2000fb_writeb(0xef, 0x3c2, cfb); |
| 473 | cyber2000_crtcw(0x11, 0x0b, cfb); |
| 474 | cyber2000_attrw(0x11, 0x00, cfb); |
| 475 | |
| 476 | cyber2000_seqw(0x00, 0x01, cfb); |
| 477 | cyber2000_seqw(0x01, 0x01, cfb); |
| 478 | cyber2000_seqw(0x02, 0x0f, cfb); |
| 479 | cyber2000_seqw(0x03, 0x00, cfb); |
| 480 | cyber2000_seqw(0x04, 0x0e, cfb); |
| 481 | cyber2000_seqw(0x00, 0x03, cfb); |
| 482 | |
| 483 | for (i = 0; i < sizeof(crtc_idx); i++) |
| 484 | cyber2000_crtcw(crtc_idx[i], hw->crtc[i], cfb); |
| 485 | |
| 486 | for (i = 0x0a; i < 0x10; i++) |
| 487 | cyber2000_crtcw(i, 0, cfb); |
| 488 | |
| 489 | cyber2000_grphw(EXT_CRT_VRTOFL, hw->crtc_ofl, cfb); |
| 490 | cyber2000_grphw(0x00, 0x00, cfb); |
| 491 | cyber2000_grphw(0x01, 0x00, cfb); |
| 492 | cyber2000_grphw(0x02, 0x00, cfb); |
| 493 | cyber2000_grphw(0x03, 0x00, cfb); |
| 494 | cyber2000_grphw(0x04, 0x00, cfb); |
| 495 | cyber2000_grphw(0x05, 0x60, cfb); |
| 496 | cyber2000_grphw(0x06, 0x05, cfb); |
| 497 | cyber2000_grphw(0x07, 0x0f, cfb); |
| 498 | cyber2000_grphw(0x08, 0xff, cfb); |
| 499 | |
| 500 | /* Attribute controller registers */ |
| 501 | for (i = 0; i < 16; i++) |
| 502 | cyber2000_attrw(i, i, cfb); |
| 503 | |
| 504 | cyber2000_attrw(0x10, 0x01, cfb); |
| 505 | cyber2000_attrw(0x11, 0x00, cfb); |
| 506 | cyber2000_attrw(0x12, 0x0f, cfb); |
| 507 | cyber2000_attrw(0x13, 0x00, cfb); |
| 508 | cyber2000_attrw(0x14, 0x00, cfb); |
| 509 | |
| 510 | /* PLL registers */ |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 511 | spin_lock(&cfb->reg_b0_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | cyber2000_grphw(EXT_DCLK_MULT, hw->clock_mult, cfb); |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 513 | cyber2000_grphw(EXT_DCLK_DIV, hw->clock_div, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | cyber2000_grphw(EXT_MCLK_MULT, cfb->mclk_mult, cfb); |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 515 | cyber2000_grphw(EXT_MCLK_DIV, cfb->mclk_div, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | cyber2000_grphw(0x90, 0x01, cfb); |
| 517 | cyber2000_grphw(0xb9, 0x80, cfb); |
| 518 | cyber2000_grphw(0xb9, 0x00, cfb); |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 519 | spin_unlock(&cfb->reg_b0_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
| 521 | cfb->ramdac_ctrl = hw->ramdac; |
| 522 | cyber2000fb_write_ramdac_ctrl(cfb); |
| 523 | |
| 524 | cyber2000fb_writeb(0x20, 0x3c0, cfb); |
| 525 | cyber2000fb_writeb(0xff, 0x3c6, cfb); |
| 526 | |
| 527 | cyber2000_grphw(0x14, hw->fetch, cfb); |
| 528 | cyber2000_grphw(0x15, ((hw->fetch >> 8) & 0x03) | |
| 529 | ((hw->pitch >> 4) & 0x30), cfb); |
| 530 | cyber2000_grphw(EXT_SEQ_MISC, hw->extseqmisc, cfb); |
| 531 | |
| 532 | /* |
| 533 | * Set up accelerator registers |
| 534 | */ |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 535 | cyber2000fb_writew(hw->width, CO_REG_SRC_WIDTH, cfb); |
| 536 | cyber2000fb_writew(hw->width, CO_REG_DEST_WIDTH, cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | cyber2000fb_writeb(hw->co_pixfmt, CO_REG_PIXFMT, cfb); |
| 538 | } |
| 539 | |
| 540 | static inline int |
| 541 | cyber2000fb_update_start(struct cfb_info *cfb, struct fb_var_screeninfo *var) |
| 542 | { |
| 543 | u_int base = var->yoffset * var->xres_virtual + var->xoffset; |
| 544 | |
| 545 | base *= var->bits_per_pixel; |
| 546 | |
| 547 | /* |
| 548 | * Convert to bytes and shift two extra bits because DAC |
| 549 | * can only start on 4 byte aligned data. |
| 550 | */ |
| 551 | base >>= 5; |
| 552 | |
| 553 | if (base >= 1 << 20) |
| 554 | return -EINVAL; |
| 555 | |
| 556 | cyber2000_grphw(0x10, base >> 16 | 0x10, cfb); |
| 557 | cyber2000_crtcw(0x0c, base >> 8, cfb); |
| 558 | cyber2000_crtcw(0x0d, base, cfb); |
| 559 | |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | static int |
| 564 | cyber2000fb_decode_crtc(struct par_info *hw, struct cfb_info *cfb, |
| 565 | struct fb_var_screeninfo *var) |
| 566 | { |
| 567 | u_int Htotal, Hblankend, Hsyncend; |
| 568 | u_int Vtotal, Vdispend, Vblankstart, Vblankend, Vsyncstart, Vsyncend; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 569 | #define ENCODE_BIT(v, b1, m, b2) ((((v) >> (b1)) & (m)) << (b2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
| 571 | hw->crtc[13] = hw->pitch; |
| 572 | hw->crtc[17] = 0xe3; |
| 573 | hw->crtc[14] = 0; |
| 574 | hw->crtc[8] = 0; |
| 575 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 576 | Htotal = var->xres + var->right_margin + |
| 577 | var->hsync_len + var->left_margin; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
| 579 | if (Htotal > 2080) |
| 580 | return -EINVAL; |
| 581 | |
| 582 | hw->crtc[0] = (Htotal >> 3) - 5; |
| 583 | hw->crtc[1] = (var->xres >> 3) - 1; |
| 584 | hw->crtc[2] = var->xres >> 3; |
| 585 | hw->crtc[4] = (var->xres + var->right_margin) >> 3; |
| 586 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 587 | Hblankend = (Htotal - 4 * 8) >> 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 589 | hw->crtc[3] = ENCODE_BIT(Hblankend, 0, 0x1f, 0) | |
| 590 | ENCODE_BIT(1, 0, 0x01, 7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | Hsyncend = (var->xres + var->right_margin + var->hsync_len) >> 3; |
| 593 | |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 594 | hw->crtc[5] = ENCODE_BIT(Hsyncend, 0, 0x1f, 0) | |
| 595 | ENCODE_BIT(Hblankend, 5, 0x01, 7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | Vdispend = var->yres - 1; |
| 598 | Vsyncstart = var->yres + var->lower_margin; |
| 599 | Vsyncend = var->yres + var->lower_margin + var->vsync_len; |
| 600 | Vtotal = var->yres + var->lower_margin + var->vsync_len + |
| 601 | var->upper_margin - 2; |
| 602 | |
| 603 | if (Vtotal > 2047) |
| 604 | return -EINVAL; |
| 605 | |
| 606 | Vblankstart = var->yres + 6; |
| 607 | Vblankend = Vtotal - 10; |
| 608 | |
| 609 | hw->crtc[6] = Vtotal; |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 610 | hw->crtc[7] = ENCODE_BIT(Vtotal, 8, 0x01, 0) | |
| 611 | ENCODE_BIT(Vdispend, 8, 0x01, 1) | |
| 612 | ENCODE_BIT(Vsyncstart, 8, 0x01, 2) | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 613 | ENCODE_BIT(Vblankstart, 8, 0x01, 3) | |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 614 | ENCODE_BIT(1, 0, 0x01, 4) | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 615 | ENCODE_BIT(Vtotal, 9, 0x01, 5) | |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 616 | ENCODE_BIT(Vdispend, 9, 0x01, 6) | |
| 617 | ENCODE_BIT(Vsyncstart, 9, 0x01, 7); |
| 618 | hw->crtc[9] = ENCODE_BIT(0, 0, 0x1f, 0) | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 619 | ENCODE_BIT(Vblankstart, 9, 0x01, 5) | |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 620 | ENCODE_BIT(1, 0, 0x01, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | hw->crtc[10] = Vsyncstart; |
Jiri Slaby | 87d0613 | 2007-10-18 23:40:27 -0700 | [diff] [blame] | 622 | hw->crtc[11] = ENCODE_BIT(Vsyncend, 0, 0x0f, 0) | |
| 623 | ENCODE_BIT(1, 0, 0x01, 7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | hw->crtc[12] = Vdispend; |
| 625 | hw->crtc[15] = Vblankstart; |
| 626 | hw->crtc[16] = Vblankend; |
| 627 | hw->crtc[18] = 0xff; |
| 628 | |
| 629 | /* |
| 630 | * overflow - graphics reg 0x11 |
| 631 | * 0=VTOTAL:10 1=VDEND:10 2=VRSTART:10 3=VBSTART:10 |
| 632 | * 4=LINECOMP:10 5-IVIDEO 6=FIXCNT |
| 633 | */ |
| 634 | hw->crtc_ofl = |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 635 | ENCODE_BIT(Vtotal, 10, 0x01, 0) | |
| 636 | ENCODE_BIT(Vdispend, 10, 0x01, 1) | |
| 637 | ENCODE_BIT(Vsyncstart, 10, 0x01, 2) | |
| 638 | ENCODE_BIT(Vblankstart, 10, 0x01, 3) | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | EXT_CRT_VRTOFL_LINECOMP10; |
| 640 | |
| 641 | /* woody: set the interlaced bit... */ |
| 642 | /* FIXME: what about doublescan? */ |
| 643 | if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) |
| 644 | hw->crtc_ofl |= EXT_CRT_VRTOFL_INTERLACE; |
| 645 | |
| 646 | return 0; |
| 647 | } |
| 648 | |
| 649 | /* |
| 650 | * The following was discovered by a good monitor, bit twiddling, theorising |
| 651 | * and but mostly luck. Strangely, it looks like everyone elses' PLL! |
| 652 | * |
| 653 | * Clock registers: |
| 654 | * fclock = fpll / div2 |
| 655 | * fpll = fref * mult / div1 |
| 656 | * where: |
| 657 | * fref = 14.318MHz (69842ps) |
| 658 | * mult = reg0xb0.7:0 |
| 659 | * div1 = (reg0xb1.5:0 + 1) |
| 660 | * div2 = 2^(reg0xb1.7:6) |
| 661 | * fpll should be between 115 and 260 MHz |
| 662 | * (8696ps and 3846ps) |
| 663 | */ |
| 664 | static int |
| 665 | cyber2000fb_decode_clock(struct par_info *hw, struct cfb_info *cfb, |
| 666 | struct fb_var_screeninfo *var) |
| 667 | { |
| 668 | u_long pll_ps = var->pixclock; |
| 669 | const u_long ref_ps = cfb->ref_ps; |
| 670 | u_int div2, t_div1, best_div1, best_mult; |
| 671 | int best_diff; |
| 672 | int vco; |
| 673 | |
| 674 | /* |
| 675 | * Step 1: |
| 676 | * find div2 such that 115MHz < fpll < 260MHz |
| 677 | * and 0 <= div2 < 4 |
| 678 | */ |
| 679 | for (div2 = 0; div2 < 4; div2++) { |
| 680 | u_long new_pll; |
| 681 | |
| 682 | new_pll = pll_ps / cfb->divisors[div2]; |
| 683 | if (8696 > new_pll && new_pll > 3846) { |
| 684 | pll_ps = new_pll; |
| 685 | break; |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | if (div2 == 4) |
| 690 | return -EINVAL; |
| 691 | |
| 692 | /* |
| 693 | * Step 2: |
| 694 | * Given pll_ps and ref_ps, find: |
| 695 | * pll_ps * 0.995 < pll_ps_calc < pll_ps * 1.005 |
| 696 | * where { 1 < best_div1 < 32, 1 < best_mult < 256 } |
| 697 | * pll_ps_calc = best_div1 / (ref_ps * best_mult) |
| 698 | */ |
| 699 | best_diff = 0x7fffffff; |
Russell King | fcd3c77 | 2011-01-28 21:03:43 +0000 | [diff] [blame] | 700 | best_mult = 2; |
| 701 | best_div1 = 32; |
| 702 | for (t_div1 = 2; t_div1 < 32; t_div1 += 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | u_int rr, t_mult, t_pll_ps; |
| 704 | int diff; |
| 705 | |
| 706 | /* |
| 707 | * Find the multiplier for this divisor |
| 708 | */ |
| 709 | rr = ref_ps * t_div1; |
| 710 | t_mult = (rr + pll_ps / 2) / pll_ps; |
| 711 | |
| 712 | /* |
| 713 | * Is the multiplier within the correct range? |
| 714 | */ |
| 715 | if (t_mult > 256 || t_mult < 2) |
| 716 | continue; |
| 717 | |
| 718 | /* |
| 719 | * Calculate the actual clock period from this multiplier |
| 720 | * and divisor, and estimate the error. |
| 721 | */ |
| 722 | t_pll_ps = (rr + t_mult / 2) / t_mult; |
| 723 | diff = pll_ps - t_pll_ps; |
| 724 | if (diff < 0) |
| 725 | diff = -diff; |
| 726 | |
| 727 | if (diff < best_diff) { |
| 728 | best_diff = diff; |
| 729 | best_mult = t_mult; |
| 730 | best_div1 = t_div1; |
| 731 | } |
| 732 | |
| 733 | /* |
| 734 | * If we hit an exact value, there is no point in continuing. |
| 735 | */ |
| 736 | if (diff == 0) |
| 737 | break; |
| 738 | } |
| 739 | |
| 740 | /* |
| 741 | * Step 3: |
| 742 | * combine values |
| 743 | */ |
| 744 | hw->clock_mult = best_mult - 1; |
| 745 | hw->clock_div = div2 << 6 | (best_div1 - 1); |
| 746 | |
| 747 | vco = ref_ps * best_div1 / best_mult; |
| 748 | if ((ref_ps == 40690) && (vco < 5556)) |
| 749 | /* Set VFSEL when VCO > 180MHz (5.556 ps). */ |
| 750 | hw->clock_div |= EXT_DCLK_DIV_VFSEL; |
| 751 | |
| 752 | return 0; |
| 753 | } |
| 754 | |
| 755 | /* |
| 756 | * Set the User Defined Part of the Display |
| 757 | */ |
| 758 | static int |
| 759 | cyber2000fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 760 | { |
| 761 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 762 | struct par_info hw; |
| 763 | unsigned int mem; |
| 764 | int err; |
| 765 | |
| 766 | var->transp.msb_right = 0; |
| 767 | var->red.msb_right = 0; |
| 768 | var->green.msb_right = 0; |
| 769 | var->blue.msb_right = 0; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 770 | var->transp.offset = 0; |
| 771 | var->transp.length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | |
| 773 | switch (var->bits_per_pixel) { |
| 774 | case 8: /* PSEUDOCOLOUR, 256 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | var->red.offset = 0; |
| 776 | var->red.length = 8; |
| 777 | var->green.offset = 0; |
| 778 | var->green.length = 8; |
| 779 | var->blue.offset = 0; |
| 780 | var->blue.length = 8; |
| 781 | break; |
| 782 | |
| 783 | case 16:/* DIRECTCOLOUR, 64k or 32k */ |
| 784 | switch (var->green.length) { |
| 785 | case 6: /* RGB565, 64k */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | var->red.offset = 11; |
| 787 | var->red.length = 5; |
| 788 | var->green.offset = 5; |
| 789 | var->green.length = 6; |
| 790 | var->blue.offset = 0; |
| 791 | var->blue.length = 5; |
| 792 | break; |
| 793 | |
| 794 | default: |
| 795 | case 5: /* RGB555, 32k */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | var->red.offset = 10; |
| 797 | var->red.length = 5; |
| 798 | var->green.offset = 5; |
| 799 | var->green.length = 5; |
| 800 | var->blue.offset = 0; |
| 801 | var->blue.length = 5; |
| 802 | break; |
| 803 | |
| 804 | case 4: /* RGB444, 4k + transparency? */ |
| 805 | var->transp.offset = 12; |
| 806 | var->transp.length = 4; |
| 807 | var->red.offset = 8; |
| 808 | var->red.length = 4; |
| 809 | var->green.offset = 4; |
| 810 | var->green.length = 4; |
| 811 | var->blue.offset = 0; |
| 812 | var->blue.length = 4; |
| 813 | break; |
| 814 | } |
| 815 | break; |
| 816 | |
| 817 | case 24:/* TRUECOLOUR, 16m */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | var->red.offset = 16; |
| 819 | var->red.length = 8; |
| 820 | var->green.offset = 8; |
| 821 | var->green.length = 8; |
| 822 | var->blue.offset = 0; |
| 823 | var->blue.length = 8; |
| 824 | break; |
| 825 | |
| 826 | case 32:/* TRUECOLOUR, 16m */ |
| 827 | var->transp.offset = 24; |
| 828 | var->transp.length = 8; |
| 829 | var->red.offset = 16; |
| 830 | var->red.length = 8; |
| 831 | var->green.offset = 8; |
| 832 | var->green.length = 8; |
| 833 | var->blue.offset = 0; |
| 834 | var->blue.length = 8; |
| 835 | break; |
| 836 | |
| 837 | default: |
| 838 | return -EINVAL; |
| 839 | } |
| 840 | |
| 841 | mem = var->xres_virtual * var->yres_virtual * (var->bits_per_pixel / 8); |
| 842 | if (mem > cfb->fb.fix.smem_len) |
| 843 | var->yres_virtual = cfb->fb.fix.smem_len * 8 / |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 844 | (var->bits_per_pixel * var->xres_virtual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | |
| 846 | if (var->yres > var->yres_virtual) |
| 847 | var->yres = var->yres_virtual; |
| 848 | if (var->xres > var->xres_virtual) |
| 849 | var->xres = var->xres_virtual; |
| 850 | |
| 851 | err = cyber2000fb_decode_clock(&hw, cfb, var); |
| 852 | if (err) |
| 853 | return err; |
| 854 | |
| 855 | err = cyber2000fb_decode_crtc(&hw, cfb, var); |
| 856 | if (err) |
| 857 | return err; |
| 858 | |
| 859 | return 0; |
| 860 | } |
| 861 | |
| 862 | static int cyber2000fb_set_par(struct fb_info *info) |
| 863 | { |
| 864 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 865 | struct fb_var_screeninfo *var = &cfb->fb.var; |
| 866 | struct par_info hw; |
| 867 | unsigned int mem; |
| 868 | |
| 869 | hw.width = var->xres_virtual; |
| 870 | hw.ramdac = RAMDAC_VREFEN | RAMDAC_DAC8BIT; |
| 871 | |
| 872 | switch (var->bits_per_pixel) { |
| 873 | case 8: |
| 874 | hw.co_pixfmt = CO_PIXFMT_8BPP; |
| 875 | hw.pitch = hw.width >> 3; |
| 876 | hw.extseqmisc = EXT_SEQ_MISC_8; |
| 877 | break; |
| 878 | |
| 879 | case 16: |
| 880 | hw.co_pixfmt = CO_PIXFMT_16BPP; |
| 881 | hw.pitch = hw.width >> 2; |
| 882 | |
| 883 | switch (var->green.length) { |
| 884 | case 6: /* RGB565, 64k */ |
| 885 | hw.extseqmisc = EXT_SEQ_MISC_16_RGB565; |
| 886 | break; |
| 887 | case 5: /* RGB555, 32k */ |
| 888 | hw.extseqmisc = EXT_SEQ_MISC_16_RGB555; |
| 889 | break; |
| 890 | case 4: /* RGB444, 4k + transparency? */ |
| 891 | hw.extseqmisc = EXT_SEQ_MISC_16_RGB444; |
| 892 | break; |
| 893 | default: |
| 894 | BUG(); |
| 895 | } |
Jan Rinze | c2ec21c | 2007-11-08 21:51:05 +0100 | [diff] [blame] | 896 | break; |
| 897 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | case 24:/* TRUECOLOUR, 16m */ |
| 899 | hw.co_pixfmt = CO_PIXFMT_24BPP; |
| 900 | hw.width *= 3; |
| 901 | hw.pitch = hw.width >> 3; |
| 902 | hw.ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN); |
| 903 | hw.extseqmisc = EXT_SEQ_MISC_24_RGB888; |
| 904 | break; |
| 905 | |
| 906 | case 32:/* TRUECOLOUR, 16m */ |
| 907 | hw.co_pixfmt = CO_PIXFMT_32BPP; |
| 908 | hw.pitch = hw.width >> 1; |
| 909 | hw.ramdac |= (RAMDAC_BYPASS | RAMDAC_RAMPWRDN); |
| 910 | hw.extseqmisc = EXT_SEQ_MISC_32; |
| 911 | break; |
| 912 | |
| 913 | default: |
| 914 | BUG(); |
| 915 | } |
| 916 | |
| 917 | /* |
| 918 | * Sigh, this is absolutely disgusting, but caused by |
| 919 | * the way the fbcon developers want to separate out |
| 920 | * the "checking" and the "setting" of the video mode. |
| 921 | * |
| 922 | * If the mode is not suitable for the hardware here, |
| 923 | * we can't prevent it being set by returning an error. |
| 924 | * |
| 925 | * In theory, since NetWinders contain just one VGA card, |
| 926 | * we should never end up hitting this problem. |
| 927 | */ |
| 928 | BUG_ON(cyber2000fb_decode_clock(&hw, cfb, var) != 0); |
| 929 | BUG_ON(cyber2000fb_decode_crtc(&hw, cfb, var) != 0); |
| 930 | |
| 931 | hw.width -= 1; |
| 932 | hw.fetch = hw.pitch; |
| 933 | if (!(cfb->mem_ctl2 & MEM_CTL2_64BIT)) |
| 934 | hw.fetch <<= 1; |
| 935 | hw.fetch += 1; |
| 936 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 937 | cfb->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | |
| 939 | /* |
| 940 | * Same here - if the size of the video mode exceeds the |
| 941 | * available RAM, we can't prevent this mode being set. |
| 942 | * |
| 943 | * In theory, since NetWinders contain just one VGA card, |
| 944 | * we should never end up hitting this problem. |
| 945 | */ |
| 946 | mem = cfb->fb.fix.line_length * var->yres_virtual; |
| 947 | BUG_ON(mem > cfb->fb.fix.smem_len); |
| 948 | |
| 949 | /* |
| 950 | * 8bpp displays are always pseudo colour. 16bpp and above |
| 951 | * are direct colour or true colour, depending on whether |
| 952 | * the RAMDAC palettes are bypassed. (Direct colour has |
| 953 | * palettes, true colour does not.) |
| 954 | */ |
| 955 | if (var->bits_per_pixel == 8) |
| 956 | cfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 957 | else if (hw.ramdac & RAMDAC_BYPASS) |
| 958 | cfb->fb.fix.visual = FB_VISUAL_TRUECOLOR; |
| 959 | else |
| 960 | cfb->fb.fix.visual = FB_VISUAL_DIRECTCOLOR; |
| 961 | |
| 962 | cyber2000fb_set_timing(cfb, &hw); |
| 963 | cyber2000fb_update_start(cfb, var); |
| 964 | |
| 965 | return 0; |
| 966 | } |
| 967 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | /* |
| 969 | * Pan or Wrap the Display |
| 970 | */ |
| 971 | static int |
| 972 | cyber2000fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
| 973 | { |
| 974 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 975 | |
| 976 | if (cyber2000fb_update_start(cfb, var)) |
| 977 | return -EINVAL; |
| 978 | |
| 979 | cfb->fb.var.xoffset = var->xoffset; |
| 980 | cfb->fb.var.yoffset = var->yoffset; |
| 981 | |
| 982 | if (var->vmode & FB_VMODE_YWRAP) { |
| 983 | cfb->fb.var.vmode |= FB_VMODE_YWRAP; |
| 984 | } else { |
| 985 | cfb->fb.var.vmode &= ~FB_VMODE_YWRAP; |
| 986 | } |
| 987 | |
| 988 | return 0; |
| 989 | } |
| 990 | |
| 991 | /* |
| 992 | * (Un)Blank the display. |
| 993 | * |
| 994 | * Blank the screen if blank_mode != 0, else unblank. If |
| 995 | * blank == NULL then the caller blanks by setting the CLUT |
| 996 | * (Color Look Up Table) to all black. Return 0 if blanking |
| 997 | * succeeded, != 0 if un-/blanking failed due to e.g. a |
| 998 | * video mode which doesn't support it. Implements VESA |
| 999 | * suspend and powerdown modes on hardware that supports |
| 1000 | * disabling hsync/vsync: |
| 1001 | * blank_mode == 2: suspend vsync |
| 1002 | * blank_mode == 3: suspend hsync |
| 1003 | * blank_mode == 4: powerdown |
| 1004 | * |
| 1005 | * wms...Enable VESA DMPS compatible powerdown mode |
| 1006 | * run "setterm -powersave powerdown" to take advantage |
| 1007 | */ |
| 1008 | static int cyber2000fb_blank(int blank, struct fb_info *info) |
| 1009 | { |
| 1010 | struct cfb_info *cfb = (struct cfb_info *)info; |
| 1011 | unsigned int sync = 0; |
| 1012 | int i; |
| 1013 | |
| 1014 | switch (blank) { |
| 1015 | case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */ |
| 1016 | sync = EXT_SYNC_CTL_VS_0 | EXT_SYNC_CTL_HS_0; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1017 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | case FB_BLANK_HSYNC_SUSPEND: /* hsync off */ |
| 1019 | sync = EXT_SYNC_CTL_VS_NORMAL | EXT_SYNC_CTL_HS_0; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1020 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | case FB_BLANK_VSYNC_SUSPEND: /* vsync off */ |
| 1022 | sync = EXT_SYNC_CTL_VS_0 | EXT_SYNC_CTL_HS_NORMAL; |
| 1023 | break; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1024 | case FB_BLANK_NORMAL: /* soft blank */ |
| 1025 | default: /* unblank */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | break; |
| 1027 | } |
| 1028 | |
| 1029 | cyber2000_grphw(EXT_SYNC_CTL, sync, cfb); |
| 1030 | |
| 1031 | if (blank <= 1) { |
| 1032 | /* turn on ramdacs */ |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1033 | cfb->ramdac_powerdown &= ~(RAMDAC_DACPWRDN | RAMDAC_BYPASS | |
| 1034 | RAMDAC_RAMPWRDN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | cyber2000fb_write_ramdac_ctrl(cfb); |
| 1036 | } |
| 1037 | |
| 1038 | /* |
| 1039 | * Soft blank/unblank the display. |
| 1040 | */ |
| 1041 | if (blank) { /* soft blank */ |
| 1042 | for (i = 0; i < NR_PALETTE; i++) { |
| 1043 | cyber2000fb_writeb(i, 0x3c8, cfb); |
| 1044 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 1045 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 1046 | cyber2000fb_writeb(0, 0x3c9, cfb); |
| 1047 | } |
| 1048 | } else { /* unblank */ |
| 1049 | for (i = 0; i < NR_PALETTE; i++) { |
| 1050 | cyber2000fb_writeb(i, 0x3c8, cfb); |
| 1051 | cyber2000fb_writeb(cfb->palette[i].red, 0x3c9, cfb); |
| 1052 | cyber2000fb_writeb(cfb->palette[i].green, 0x3c9, cfb); |
| 1053 | cyber2000fb_writeb(cfb->palette[i].blue, 0x3c9, cfb); |
| 1054 | } |
| 1055 | } |
| 1056 | |
| 1057 | if (blank >= 2) { |
| 1058 | /* turn off ramdacs */ |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1059 | cfb->ramdac_powerdown |= RAMDAC_DACPWRDN | RAMDAC_BYPASS | |
| 1060 | RAMDAC_RAMPWRDN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | cyber2000fb_write_ramdac_ctrl(cfb); |
| 1062 | } |
| 1063 | |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | static struct fb_ops cyber2000fb_ops = { |
| 1068 | .owner = THIS_MODULE, |
| 1069 | .fb_check_var = cyber2000fb_check_var, |
| 1070 | .fb_set_par = cyber2000fb_set_par, |
| 1071 | .fb_setcolreg = cyber2000fb_setcolreg, |
| 1072 | .fb_blank = cyber2000fb_blank, |
| 1073 | .fb_pan_display = cyber2000fb_pan_display, |
| 1074 | .fb_fillrect = cyber2000fb_fillrect, |
| 1075 | .fb_copyarea = cyber2000fb_copyarea, |
| 1076 | .fb_imageblit = cyber2000fb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | .fb_sync = cyber2000fb_sync, |
| 1078 | }; |
| 1079 | |
| 1080 | /* |
| 1081 | * This is the only "static" reference to the internal data structures |
| 1082 | * of this driver. It is here solely at the moment to support the other |
| 1083 | * CyberPro modules external to this driver. |
| 1084 | */ |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1085 | static struct cfb_info *int_cfb_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | |
| 1087 | /* |
| 1088 | * Enable access to the extended registers |
| 1089 | */ |
| 1090 | void cyber2000fb_enable_extregs(struct cfb_info *cfb) |
| 1091 | { |
| 1092 | cfb->func_use_count += 1; |
| 1093 | |
| 1094 | if (cfb->func_use_count == 1) { |
| 1095 | int old; |
| 1096 | |
| 1097 | old = cyber2000_grphr(EXT_FUNC_CTL, cfb); |
| 1098 | old |= EXT_FUNC_CTL_EXTREGENBL; |
| 1099 | cyber2000_grphw(EXT_FUNC_CTL, old, cfb); |
| 1100 | } |
| 1101 | } |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1102 | EXPORT_SYMBOL(cyber2000fb_enable_extregs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | |
| 1104 | /* |
| 1105 | * Disable access to the extended registers |
| 1106 | */ |
| 1107 | void cyber2000fb_disable_extregs(struct cfb_info *cfb) |
| 1108 | { |
| 1109 | if (cfb->func_use_count == 1) { |
| 1110 | int old; |
| 1111 | |
| 1112 | old = cyber2000_grphr(EXT_FUNC_CTL, cfb); |
| 1113 | old &= ~EXT_FUNC_CTL_EXTREGENBL; |
| 1114 | cyber2000_grphw(EXT_FUNC_CTL, old, cfb); |
| 1115 | } |
| 1116 | |
| 1117 | if (cfb->func_use_count == 0) |
| 1118 | printk(KERN_ERR "disable_extregs: count = 0\n"); |
| 1119 | else |
| 1120 | cfb->func_use_count -= 1; |
| 1121 | } |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1122 | EXPORT_SYMBOL(cyber2000fb_disable_extregs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | /* |
| 1125 | * Attach a capture/tv driver to the core CyberX0X0 driver. |
| 1126 | */ |
| 1127 | int cyber2000fb_attach(struct cyberpro_info *info, int idx) |
| 1128 | { |
| 1129 | if (int_cfb_info != NULL) { |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1130 | info->dev = int_cfb_info->fb.device; |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1131 | #ifdef CONFIG_FB_CYBER2000_I2C |
| 1132 | info->i2c = &int_cfb_info->i2c_adapter; |
| 1133 | #else |
| 1134 | info->i2c = NULL; |
| 1135 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | info->regs = int_cfb_info->regs; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1137 | info->irq = int_cfb_info->irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | info->fb = int_cfb_info->fb.screen_base; |
| 1139 | info->fb_size = int_cfb_info->fb.fix.smem_len; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1140 | info->info = int_cfb_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1142 | strlcpy(info->dev_name, int_cfb_info->fb.fix.id, |
| 1143 | sizeof(info->dev_name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | } |
| 1145 | |
| 1146 | return int_cfb_info != NULL; |
| 1147 | } |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1148 | EXPORT_SYMBOL(cyber2000fb_attach); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | |
| 1150 | /* |
| 1151 | * Detach a capture/tv driver from the core CyberX0X0 driver. |
| 1152 | */ |
| 1153 | void cyber2000fb_detach(int idx) |
| 1154 | { |
| 1155 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | EXPORT_SYMBOL(cyber2000fb_detach); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1158 | #ifdef CONFIG_FB_CYBER2000_DDC |
| 1159 | |
| 1160 | #define DDC_REG 0xb0 |
| 1161 | #define DDC_SCL_OUT (1 << 0) |
| 1162 | #define DDC_SDA_OUT (1 << 4) |
| 1163 | #define DDC_SCL_IN (1 << 2) |
| 1164 | #define DDC_SDA_IN (1 << 6) |
| 1165 | |
| 1166 | static void cyber2000fb_enable_ddc(struct cfb_info *cfb) |
| 1167 | { |
| 1168 | spin_lock(&cfb->reg_b0_lock); |
| 1169 | cyber2000fb_writew(0x1bf, 0x3ce, cfb); |
| 1170 | } |
| 1171 | |
| 1172 | static void cyber2000fb_disable_ddc(struct cfb_info *cfb) |
| 1173 | { |
| 1174 | cyber2000fb_writew(0x0bf, 0x3ce, cfb); |
| 1175 | spin_unlock(&cfb->reg_b0_lock); |
| 1176 | } |
| 1177 | |
| 1178 | |
| 1179 | static void cyber2000fb_ddc_setscl(void *data, int val) |
| 1180 | { |
| 1181 | struct cfb_info *cfb = data; |
| 1182 | unsigned char reg; |
| 1183 | |
| 1184 | cyber2000fb_enable_ddc(cfb); |
| 1185 | reg = cyber2000_grphr(DDC_REG, cfb); |
| 1186 | if (!val) /* bit is inverted */ |
| 1187 | reg |= DDC_SCL_OUT; |
| 1188 | else |
| 1189 | reg &= ~DDC_SCL_OUT; |
| 1190 | cyber2000_grphw(DDC_REG, reg, cfb); |
| 1191 | cyber2000fb_disable_ddc(cfb); |
| 1192 | } |
| 1193 | |
| 1194 | static void cyber2000fb_ddc_setsda(void *data, int val) |
| 1195 | { |
| 1196 | struct cfb_info *cfb = data; |
| 1197 | unsigned char reg; |
| 1198 | |
| 1199 | cyber2000fb_enable_ddc(cfb); |
| 1200 | reg = cyber2000_grphr(DDC_REG, cfb); |
| 1201 | if (!val) /* bit is inverted */ |
| 1202 | reg |= DDC_SDA_OUT; |
| 1203 | else |
| 1204 | reg &= ~DDC_SDA_OUT; |
| 1205 | cyber2000_grphw(DDC_REG, reg, cfb); |
| 1206 | cyber2000fb_disable_ddc(cfb); |
| 1207 | } |
| 1208 | |
| 1209 | static int cyber2000fb_ddc_getscl(void *data) |
| 1210 | { |
| 1211 | struct cfb_info *cfb = data; |
| 1212 | int retval; |
| 1213 | |
| 1214 | cyber2000fb_enable_ddc(cfb); |
| 1215 | retval = !!(cyber2000_grphr(DDC_REG, cfb) & DDC_SCL_IN); |
| 1216 | cyber2000fb_disable_ddc(cfb); |
| 1217 | |
| 1218 | return retval; |
| 1219 | } |
| 1220 | |
| 1221 | static int cyber2000fb_ddc_getsda(void *data) |
| 1222 | { |
| 1223 | struct cfb_info *cfb = data; |
| 1224 | int retval; |
| 1225 | |
| 1226 | cyber2000fb_enable_ddc(cfb); |
| 1227 | retval = !!(cyber2000_grphr(DDC_REG, cfb) & DDC_SDA_IN); |
| 1228 | cyber2000fb_disable_ddc(cfb); |
| 1229 | |
| 1230 | return retval; |
| 1231 | } |
| 1232 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1233 | static int cyber2000fb_setup_ddc_bus(struct cfb_info *cfb) |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1234 | { |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1235 | strlcpy(cfb->ddc_adapter.name, cfb->fb.fix.id, |
| 1236 | sizeof(cfb->ddc_adapter.name)); |
| 1237 | cfb->ddc_adapter.owner = THIS_MODULE; |
| 1238 | cfb->ddc_adapter.class = I2C_CLASS_DDC; |
| 1239 | cfb->ddc_adapter.algo_data = &cfb->ddc_algo; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1240 | cfb->ddc_adapter.dev.parent = cfb->fb.device; |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1241 | cfb->ddc_algo.setsda = cyber2000fb_ddc_setsda; |
| 1242 | cfb->ddc_algo.setscl = cyber2000fb_ddc_setscl; |
| 1243 | cfb->ddc_algo.getsda = cyber2000fb_ddc_getsda; |
| 1244 | cfb->ddc_algo.getscl = cyber2000fb_ddc_getscl; |
| 1245 | cfb->ddc_algo.udelay = 10; |
| 1246 | cfb->ddc_algo.timeout = 20; |
| 1247 | cfb->ddc_algo.data = cfb; |
| 1248 | |
| 1249 | i2c_set_adapdata(&cfb->ddc_adapter, cfb); |
| 1250 | |
| 1251 | return i2c_bit_add_bus(&cfb->ddc_adapter); |
| 1252 | } |
| 1253 | #endif /* CONFIG_FB_CYBER2000_DDC */ |
| 1254 | |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1255 | #ifdef CONFIG_FB_CYBER2000_I2C |
| 1256 | static void cyber2000fb_i2c_setsda(void *data, int state) |
| 1257 | { |
| 1258 | struct cfb_info *cfb = data; |
| 1259 | unsigned int latch2; |
| 1260 | |
| 1261 | spin_lock(&cfb->reg_b0_lock); |
| 1262 | latch2 = cyber2000_grphr(EXT_LATCH2, cfb); |
| 1263 | latch2 &= EXT_LATCH2_I2C_CLKEN; |
| 1264 | if (state) |
| 1265 | latch2 |= EXT_LATCH2_I2C_DATEN; |
| 1266 | cyber2000_grphw(EXT_LATCH2, latch2, cfb); |
| 1267 | spin_unlock(&cfb->reg_b0_lock); |
| 1268 | } |
| 1269 | |
| 1270 | static void cyber2000fb_i2c_setscl(void *data, int state) |
| 1271 | { |
| 1272 | struct cfb_info *cfb = data; |
| 1273 | unsigned int latch2; |
| 1274 | |
| 1275 | spin_lock(&cfb->reg_b0_lock); |
| 1276 | latch2 = cyber2000_grphr(EXT_LATCH2, cfb); |
| 1277 | latch2 &= EXT_LATCH2_I2C_DATEN; |
| 1278 | if (state) |
| 1279 | latch2 |= EXT_LATCH2_I2C_CLKEN; |
| 1280 | cyber2000_grphw(EXT_LATCH2, latch2, cfb); |
| 1281 | spin_unlock(&cfb->reg_b0_lock); |
| 1282 | } |
| 1283 | |
| 1284 | static int cyber2000fb_i2c_getsda(void *data) |
| 1285 | { |
| 1286 | struct cfb_info *cfb = data; |
| 1287 | int ret; |
| 1288 | |
| 1289 | spin_lock(&cfb->reg_b0_lock); |
| 1290 | ret = !!(cyber2000_grphr(EXT_LATCH2, cfb) & EXT_LATCH2_I2C_DAT); |
| 1291 | spin_unlock(&cfb->reg_b0_lock); |
| 1292 | |
| 1293 | return ret; |
| 1294 | } |
| 1295 | |
| 1296 | static int cyber2000fb_i2c_getscl(void *data) |
| 1297 | { |
| 1298 | struct cfb_info *cfb = data; |
| 1299 | int ret; |
| 1300 | |
| 1301 | spin_lock(&cfb->reg_b0_lock); |
| 1302 | ret = !!(cyber2000_grphr(EXT_LATCH2, cfb) & EXT_LATCH2_I2C_CLK); |
| 1303 | spin_unlock(&cfb->reg_b0_lock); |
| 1304 | |
| 1305 | return ret; |
| 1306 | } |
| 1307 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1308 | static int cyber2000fb_i2c_register(struct cfb_info *cfb) |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1309 | { |
| 1310 | strlcpy(cfb->i2c_adapter.name, cfb->fb.fix.id, |
| 1311 | sizeof(cfb->i2c_adapter.name)); |
| 1312 | cfb->i2c_adapter.owner = THIS_MODULE; |
| 1313 | cfb->i2c_adapter.algo_data = &cfb->i2c_algo; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1314 | cfb->i2c_adapter.dev.parent = cfb->fb.device; |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1315 | cfb->i2c_algo.setsda = cyber2000fb_i2c_setsda; |
| 1316 | cfb->i2c_algo.setscl = cyber2000fb_i2c_setscl; |
| 1317 | cfb->i2c_algo.getsda = cyber2000fb_i2c_getsda; |
| 1318 | cfb->i2c_algo.getscl = cyber2000fb_i2c_getscl; |
| 1319 | cfb->i2c_algo.udelay = 5; |
| 1320 | cfb->i2c_algo.timeout = msecs_to_jiffies(100); |
| 1321 | cfb->i2c_algo.data = cfb; |
| 1322 | |
| 1323 | return i2c_bit_add_bus(&cfb->i2c_adapter); |
| 1324 | } |
| 1325 | |
| 1326 | static void cyber2000fb_i2c_unregister(struct cfb_info *cfb) |
| 1327 | { |
| 1328 | i2c_del_adapter(&cfb->i2c_adapter); |
| 1329 | } |
| 1330 | #else |
| 1331 | #define cyber2000fb_i2c_register(cfb) (0) |
| 1332 | #define cyber2000fb_i2c_unregister(cfb) do { } while (0) |
| 1333 | #endif |
| 1334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | /* |
| 1336 | * These parameters give |
| 1337 | * 640x480, hsync 31.5kHz, vsync 60Hz |
| 1338 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1339 | static struct fb_videomode cyber2000fb_default_mode = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | .refresh = 60, |
| 1341 | .xres = 640, |
| 1342 | .yres = 480, |
| 1343 | .pixclock = 39722, |
| 1344 | .left_margin = 56, |
| 1345 | .right_margin = 16, |
| 1346 | .upper_margin = 34, |
| 1347 | .lower_margin = 9, |
| 1348 | .hsync_len = 88, |
| 1349 | .vsync_len = 2, |
| 1350 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 1351 | .vmode = FB_VMODE_NONINTERLACED |
| 1352 | }; |
| 1353 | |
| 1354 | static char igs_regs[] = { |
| 1355 | EXT_CRT_IRQ, 0, |
| 1356 | EXT_CRT_TEST, 0, |
| 1357 | EXT_SYNC_CTL, 0, |
| 1358 | EXT_SEG_WRITE_PTR, 0, |
| 1359 | EXT_SEG_READ_PTR, 0, |
| 1360 | EXT_BIU_MISC, EXT_BIU_MISC_LIN_ENABLE | |
| 1361 | EXT_BIU_MISC_COP_ENABLE | |
| 1362 | EXT_BIU_MISC_COP_BFC, |
| 1363 | EXT_FUNC_CTL, 0, |
| 1364 | CURS_H_START, 0, |
| 1365 | CURS_H_START + 1, 0, |
| 1366 | CURS_H_PRESET, 0, |
| 1367 | CURS_V_START, 0, |
| 1368 | CURS_V_START + 1, 0, |
| 1369 | CURS_V_PRESET, 0, |
| 1370 | CURS_CTL, 0, |
| 1371 | EXT_ATTRIB_CTL, EXT_ATTRIB_CTL_EXT, |
| 1372 | EXT_OVERSCAN_RED, 0, |
| 1373 | EXT_OVERSCAN_GREEN, 0, |
| 1374 | EXT_OVERSCAN_BLUE, 0, |
| 1375 | |
| 1376 | /* some of these are questionable when we have a BIOS */ |
| 1377 | EXT_MEM_CTL0, EXT_MEM_CTL0_7CLK | |
| 1378 | EXT_MEM_CTL0_RAS_1 | |
| 1379 | EXT_MEM_CTL0_MULTCAS, |
| 1380 | EXT_HIDDEN_CTL1, 0x30, |
| 1381 | EXT_FIFO_CTL, 0x0b, |
| 1382 | EXT_FIFO_CTL + 1, 0x17, |
| 1383 | 0x76, 0x00, |
| 1384 | EXT_HIDDEN_CTL4, 0xc8 |
| 1385 | }; |
| 1386 | |
| 1387 | /* |
| 1388 | * Initialise the CyberPro hardware. On the CyberPro5XXXX, |
| 1389 | * ensure that we're using the correct PLL (5XXX's may be |
| 1390 | * programmed to use an additional set of PLLs.) |
| 1391 | */ |
| 1392 | static void cyberpro_init_hw(struct cfb_info *cfb) |
| 1393 | { |
| 1394 | int i; |
| 1395 | |
| 1396 | for (i = 0; i < sizeof(igs_regs); i += 2) |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1397 | cyber2000_grphw(igs_regs[i], igs_regs[i + 1], cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | |
| 1399 | if (cfb->id == ID_CYBERPRO_5000) { |
| 1400 | unsigned char val; |
| 1401 | cyber2000fb_writeb(0xba, 0x3ce, cfb); |
| 1402 | val = cyber2000fb_readb(0x3cf, cfb) & 0x80; |
| 1403 | cyber2000fb_writeb(val, 0x3cf, cfb); |
| 1404 | } |
| 1405 | } |
| 1406 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1407 | static struct cfb_info *cyberpro_alloc_fb_info(unsigned int id, char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | { |
| 1409 | struct cfb_info *cfb; |
| 1410 | |
Yoann Padioleau | dd00cc4 | 2007-07-19 01:49:03 -0700 | [diff] [blame] | 1411 | cfb = kzalloc(sizeof(struct cfb_info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | if (!cfb) |
| 1413 | return NULL; |
| 1414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | |
| 1416 | cfb->id = id; |
| 1417 | |
| 1418 | if (id == ID_CYBERPRO_5000) |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1419 | cfb->ref_ps = 40690; /* 24.576 MHz */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | else |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1421 | cfb->ref_ps = 69842; /* 14.31818 MHz (69841?) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | |
| 1423 | cfb->divisors[0] = 1; |
| 1424 | cfb->divisors[1] = 2; |
| 1425 | cfb->divisors[2] = 4; |
| 1426 | |
| 1427 | if (id == ID_CYBERPRO_2000) |
| 1428 | cfb->divisors[3] = 8; |
| 1429 | else |
| 1430 | cfb->divisors[3] = 6; |
| 1431 | |
| 1432 | strcpy(cfb->fb.fix.id, name); |
| 1433 | |
| 1434 | cfb->fb.fix.type = FB_TYPE_PACKED_PIXELS; |
| 1435 | cfb->fb.fix.type_aux = 0; |
| 1436 | cfb->fb.fix.xpanstep = 0; |
| 1437 | cfb->fb.fix.ypanstep = 1; |
| 1438 | cfb->fb.fix.ywrapstep = 0; |
| 1439 | |
| 1440 | switch (id) { |
| 1441 | case ID_IGA_1682: |
| 1442 | cfb->fb.fix.accel = 0; |
| 1443 | break; |
| 1444 | |
| 1445 | case ID_CYBERPRO_2000: |
| 1446 | cfb->fb.fix.accel = FB_ACCEL_IGS_CYBER2000; |
| 1447 | break; |
| 1448 | |
| 1449 | case ID_CYBERPRO_2010: |
| 1450 | cfb->fb.fix.accel = FB_ACCEL_IGS_CYBER2010; |
| 1451 | break; |
| 1452 | |
| 1453 | case ID_CYBERPRO_5000: |
| 1454 | cfb->fb.fix.accel = FB_ACCEL_IGS_CYBER5000; |
| 1455 | break; |
| 1456 | } |
| 1457 | |
| 1458 | cfb->fb.var.nonstd = 0; |
| 1459 | cfb->fb.var.activate = FB_ACTIVATE_NOW; |
| 1460 | cfb->fb.var.height = -1; |
| 1461 | cfb->fb.var.width = -1; |
| 1462 | cfb->fb.var.accel_flags = FB_ACCELF_TEXT; |
| 1463 | |
| 1464 | cfb->fb.fbops = &cyber2000fb_ops; |
| 1465 | cfb->fb.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
Russell King | eca02b0 | 2005-05-03 12:23:56 +0100 | [diff] [blame] | 1466 | cfb->fb.pseudo_palette = cfb->pseudo_palette; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | |
Russell King | 052a7f5 | 2011-01-28 21:23:56 +0000 | [diff] [blame] | 1468 | spin_lock_init(&cfb->reg_b0_lock); |
| 1469 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | fb_alloc_cmap(&cfb->fb.cmap, NR_PALETTE, 0); |
| 1471 | |
| 1472 | return cfb; |
| 1473 | } |
| 1474 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1475 | static void cyberpro_free_fb_info(struct cfb_info *cfb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | { |
| 1477 | if (cfb) { |
| 1478 | /* |
| 1479 | * Free the colourmap |
| 1480 | */ |
| 1481 | fb_alloc_cmap(&cfb->fb.cmap, 0, 0); |
| 1482 | |
| 1483 | kfree(cfb); |
| 1484 | } |
| 1485 | } |
| 1486 | |
| 1487 | /* |
| 1488 | * Parse Cyber2000fb options. Usage: |
| 1489 | * video=cyber2000:font:fontname |
| 1490 | */ |
| 1491 | #ifndef MODULE |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1492 | static int cyber2000fb_setup(char *options) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | { |
| 1494 | char *opt; |
| 1495 | |
| 1496 | if (!options || !*options) |
| 1497 | return 0; |
| 1498 | |
| 1499 | while ((opt = strsep(&options, ",")) != NULL) { |
| 1500 | if (!*opt) |
| 1501 | continue; |
| 1502 | |
| 1503 | if (strncmp(opt, "font:", 5) == 0) { |
| 1504 | static char default_font_storage[40]; |
| 1505 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1506 | strlcpy(default_font_storage, opt + 5, |
| 1507 | sizeof(default_font_storage)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | default_font = default_font_storage; |
| 1509 | continue; |
| 1510 | } |
| 1511 | |
| 1512 | printk(KERN_ERR "CyberPro20x0: unknown parameter: %s\n", opt); |
| 1513 | } |
| 1514 | return 0; |
| 1515 | } |
| 1516 | #endif /* MODULE */ |
| 1517 | |
| 1518 | /* |
| 1519 | * The CyberPro chips can be placed on many different bus types. |
| 1520 | * This probe function is common to all bus types. The bus-specific |
| 1521 | * probe function is expected to have: |
| 1522 | * - enabled access to the linear memory region |
| 1523 | * - memory mapped access to the registers |
| 1524 | * - initialised mem_ctl1 and mem_ctl2 appropriately. |
| 1525 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1526 | static int cyberpro_common_probe(struct cfb_info *cfb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | { |
| 1528 | u_long smem_size; |
| 1529 | u_int h_sync, v_sync; |
| 1530 | int err; |
| 1531 | |
| 1532 | cyberpro_init_hw(cfb); |
| 1533 | |
| 1534 | /* |
| 1535 | * Get the video RAM size and width from the VGA register. |
| 1536 | * This should have been already initialised by the BIOS, |
| 1537 | * but if it's garbage, claim default 1MB VRAM (woody) |
| 1538 | */ |
| 1539 | cfb->mem_ctl1 = cyber2000_grphr(EXT_MEM_CTL1, cfb); |
| 1540 | cfb->mem_ctl2 = cyber2000_grphr(EXT_MEM_CTL2, cfb); |
| 1541 | |
| 1542 | /* |
| 1543 | * Determine the size of the memory. |
| 1544 | */ |
| 1545 | switch (cfb->mem_ctl2 & MEM_CTL2_SIZE_MASK) { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1546 | case MEM_CTL2_SIZE_4MB: |
| 1547 | smem_size = 0x00400000; |
| 1548 | break; |
| 1549 | case MEM_CTL2_SIZE_2MB: |
| 1550 | smem_size = 0x00200000; |
| 1551 | break; |
| 1552 | case MEM_CTL2_SIZE_1MB: |
| 1553 | smem_size = 0x00100000; |
| 1554 | break; |
| 1555 | default: |
| 1556 | smem_size = 0x00100000; |
| 1557 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | } |
| 1559 | |
| 1560 | cfb->fb.fix.smem_len = smem_size; |
| 1561 | cfb->fb.fix.mmio_len = MMIO_SIZE; |
| 1562 | cfb->fb.screen_base = cfb->region; |
| 1563 | |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1564 | #ifdef CONFIG_FB_CYBER2000_DDC |
| 1565 | if (cyber2000fb_setup_ddc_bus(cfb) == 0) |
| 1566 | cfb->ddc_registered = true; |
| 1567 | #endif |
| 1568 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | err = -EINVAL; |
| 1570 | if (!fb_find_mode(&cfb->fb.var, &cfb->fb, NULL, NULL, 0, |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1571 | &cyber2000fb_default_mode, 8)) { |
| 1572 | printk(KERN_ERR "%s: no valid mode found\n", cfb->fb.fix.id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | goto failed; |
| 1574 | } |
| 1575 | |
| 1576 | cfb->fb.var.yres_virtual = cfb->fb.fix.smem_len * 8 / |
| 1577 | (cfb->fb.var.bits_per_pixel * cfb->fb.var.xres_virtual); |
| 1578 | |
| 1579 | if (cfb->fb.var.yres_virtual < cfb->fb.var.yres) |
| 1580 | cfb->fb.var.yres_virtual = cfb->fb.var.yres; |
| 1581 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1582 | /* fb_set_var(&cfb->fb.var, -1, &cfb->fb); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | |
| 1584 | /* |
| 1585 | * Calculate the hsync and vsync frequencies. Note that |
| 1586 | * we split the 1e12 constant up so that we can preserve |
| 1587 | * the precision and fit the results into 32-bit registers. |
| 1588 | * (1953125000 * 512 = 1e12) |
| 1589 | */ |
| 1590 | h_sync = 1953125000 / cfb->fb.var.pixclock; |
| 1591 | h_sync = h_sync * 512 / (cfb->fb.var.xres + cfb->fb.var.left_margin + |
| 1592 | cfb->fb.var.right_margin + cfb->fb.var.hsync_len); |
| 1593 | v_sync = h_sync / (cfb->fb.var.yres + cfb->fb.var.upper_margin + |
| 1594 | cfb->fb.var.lower_margin + cfb->fb.var.vsync_len); |
| 1595 | |
| 1596 | printk(KERN_INFO "%s: %dKiB VRAM, using %dx%d, %d.%03dkHz, %dHz\n", |
| 1597 | cfb->fb.fix.id, cfb->fb.fix.smem_len >> 10, |
| 1598 | cfb->fb.var.xres, cfb->fb.var.yres, |
| 1599 | h_sync / 1000, h_sync % 1000, v_sync); |
| 1600 | |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1601 | err = cyber2000fb_i2c_register(cfb); |
| 1602 | if (err) |
| 1603 | goto failed; |
| 1604 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | err = register_framebuffer(&cfb->fb); |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1606 | if (err) |
| 1607 | cyber2000fb_i2c_unregister(cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1608 | |
| 1609 | failed: |
Ondrej Zary | e5dedf8 | 2010-08-11 21:48:03 +0200 | [diff] [blame] | 1610 | #ifdef CONFIG_FB_CYBER2000_DDC |
| 1611 | if (err && cfb->ddc_registered) |
| 1612 | i2c_del_adapter(&cfb->ddc_adapter); |
| 1613 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | return err; |
| 1615 | } |
| 1616 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1617 | static void cyberpro_common_remove(struct cfb_info *cfb) |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1618 | { |
| 1619 | unregister_framebuffer(&cfb->fb); |
| 1620 | #ifdef CONFIG_FB_CYBER2000_DDC |
| 1621 | if (cfb->ddc_registered) |
| 1622 | i2c_del_adapter(&cfb->ddc_adapter); |
| 1623 | #endif |
| 1624 | cyber2000fb_i2c_unregister(cfb); |
| 1625 | } |
| 1626 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | static void cyberpro_common_resume(struct cfb_info *cfb) |
| 1628 | { |
| 1629 | cyberpro_init_hw(cfb); |
| 1630 | |
| 1631 | /* |
| 1632 | * Reprogram the MEM_CTL1 and MEM_CTL2 registers |
| 1633 | */ |
| 1634 | cyber2000_grphw(EXT_MEM_CTL1, cfb->mem_ctl1, cfb); |
| 1635 | cyber2000_grphw(EXT_MEM_CTL2, cfb->mem_ctl2, cfb); |
| 1636 | |
| 1637 | /* |
| 1638 | * Restore the old video mode and the palette. |
| 1639 | * We also need to tell fbcon to redraw the console. |
| 1640 | */ |
| 1641 | cyber2000fb_set_par(&cfb->fb); |
| 1642 | } |
| 1643 | |
| 1644 | #ifdef CONFIG_ARCH_SHARK |
| 1645 | |
Alexander Schulz | eab184c | 2009-01-08 18:05:58 +0100 | [diff] [blame] | 1646 | #include <mach/framebuffer.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1648 | static int cyberpro_vl_probe(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | { |
| 1650 | struct cfb_info *cfb; |
| 1651 | int err = -ENOMEM; |
| 1652 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1653 | if (!request_mem_region(FB_START, FB_SIZE, "CyberPro2010")) |
| 1654 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | |
| 1656 | cfb = cyberpro_alloc_fb_info(ID_CYBERPRO_2010, "CyberPro2010"); |
| 1657 | if (!cfb) |
| 1658 | goto failed_release; |
| 1659 | |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1660 | cfb->irq = -1; |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1661 | cfb->region = ioremap(FB_START, FB_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | if (!cfb->region) |
| 1663 | goto failed_ioremap; |
| 1664 | |
| 1665 | cfb->regs = cfb->region + MMIO_OFFSET; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1666 | cfb->fb.device = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | cfb->fb.fix.mmio_start = FB_START + MMIO_OFFSET; |
| 1668 | cfb->fb.fix.smem_start = FB_START; |
| 1669 | |
| 1670 | /* |
| 1671 | * Bring up the hardware. This is expected to enable access |
| 1672 | * to the linear memory region, and allow access to the memory |
| 1673 | * mapped registers. Also, mem_ctl1 and mem_ctl2 must be |
| 1674 | * initialised. |
| 1675 | */ |
| 1676 | cyber2000fb_writeb(0x18, 0x46e8, cfb); |
| 1677 | cyber2000fb_writeb(0x01, 0x102, cfb); |
| 1678 | cyber2000fb_writeb(0x08, 0x46e8, cfb); |
| 1679 | cyber2000fb_writeb(EXT_BIU_MISC, 0x3ce, cfb); |
| 1680 | cyber2000fb_writeb(EXT_BIU_MISC_LIN_ENABLE, 0x3cf, cfb); |
| 1681 | |
| 1682 | cfb->mclk_mult = 0xdb; |
| 1683 | cfb->mclk_div = 0x54; |
| 1684 | |
| 1685 | err = cyberpro_common_probe(cfb); |
| 1686 | if (err) |
| 1687 | goto failed; |
| 1688 | |
| 1689 | if (int_cfb_info == NULL) |
| 1690 | int_cfb_info = cfb; |
| 1691 | |
| 1692 | return 0; |
| 1693 | |
| 1694 | failed: |
| 1695 | iounmap(cfb->region); |
| 1696 | failed_ioremap: |
| 1697 | cyberpro_free_fb_info(cfb); |
| 1698 | failed_release: |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1699 | release_mem_region(FB_START, FB_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | |
| 1701 | return err; |
| 1702 | } |
| 1703 | #endif /* CONFIG_ARCH_SHARK */ |
| 1704 | |
| 1705 | /* |
| 1706 | * PCI specific support. |
| 1707 | */ |
| 1708 | #ifdef CONFIG_PCI |
| 1709 | /* |
| 1710 | * We need to wake up the CyberPro, and make sure its in linear memory |
| 1711 | * mode. Unfortunately, this is specific to the platform and card that |
| 1712 | * we are running on. |
| 1713 | * |
| 1714 | * On x86 and ARM, should we be initialising the CyberPro first via the |
| 1715 | * IO registers, and then the MMIO registers to catch all cases? Can we |
| 1716 | * end up in the situation where the chip is in MMIO mode, but not awake |
| 1717 | * on an x86 system? |
| 1718 | */ |
| 1719 | static int cyberpro_pci_enable_mmio(struct cfb_info *cfb) |
| 1720 | { |
| 1721 | unsigned char val; |
| 1722 | |
| 1723 | #if defined(__sparc_v9__) |
| 1724 | #error "You lose, consult DaveM." |
| 1725 | #elif defined(__sparc__) |
| 1726 | /* |
| 1727 | * SPARC does not have an "outb" instruction, so we generate |
| 1728 | * I/O cycles storing into a reserved memory space at |
| 1729 | * physical address 0x3000000 |
| 1730 | */ |
Al Viro | cd03066 | 2005-12-15 09:18:10 +0000 | [diff] [blame] | 1731 | unsigned char __iomem *iop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1732 | |
| 1733 | iop = ioremap(0x3000000, 0x5000); |
| 1734 | if (iop == NULL) { |
David S. Miller | 89b409f | 2008-12-08 01:00:08 -0800 | [diff] [blame] | 1735 | printk(KERN_ERR "iga5000: cannot map I/O\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | return -ENOMEM; |
| 1737 | } |
| 1738 | |
| 1739 | writeb(0x18, iop + 0x46e8); |
| 1740 | writeb(0x01, iop + 0x102); |
| 1741 | writeb(0x08, iop + 0x46e8); |
| 1742 | writeb(EXT_BIU_MISC, iop + 0x3ce); |
| 1743 | writeb(EXT_BIU_MISC_LIN_ENABLE, iop + 0x3cf); |
| 1744 | |
Al Viro | cd03066 | 2005-12-15 09:18:10 +0000 | [diff] [blame] | 1745 | iounmap(iop); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | #else |
| 1747 | /* |
| 1748 | * Most other machine types are "normal", so |
| 1749 | * we use the standard IO-based wakeup. |
| 1750 | */ |
| 1751 | outb(0x18, 0x46e8); |
| 1752 | outb(0x01, 0x102); |
| 1753 | outb(0x08, 0x46e8); |
| 1754 | outb(EXT_BIU_MISC, 0x3ce); |
| 1755 | outb(EXT_BIU_MISC_LIN_ENABLE, 0x3cf); |
| 1756 | #endif |
| 1757 | |
| 1758 | /* |
| 1759 | * Allow the CyberPro to accept PCI burst accesses |
| 1760 | */ |
Woody Suwalski | cd792aa | 2007-02-12 00:55:00 -0800 | [diff] [blame] | 1761 | if (cfb->id == ID_CYBERPRO_2010) { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1762 | printk(KERN_INFO "%s: NOT enabling PCI bursts\n", |
| 1763 | cfb->fb.fix.id); |
Woody Suwalski | cd792aa | 2007-02-12 00:55:00 -0800 | [diff] [blame] | 1764 | } else { |
| 1765 | val = cyber2000_grphr(EXT_BUS_CTL, cfb); |
| 1766 | if (!(val & EXT_BUS_CTL_PCIBURST_WRITE)) { |
| 1767 | printk(KERN_INFO "%s: enabling PCI bursts\n", |
| 1768 | cfb->fb.fix.id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1769 | |
Woody Suwalski | cd792aa | 2007-02-12 00:55:00 -0800 | [diff] [blame] | 1770 | val |= EXT_BUS_CTL_PCIBURST_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | |
Woody Suwalski | cd792aa | 2007-02-12 00:55:00 -0800 | [diff] [blame] | 1772 | if (cfb->id == ID_CYBERPRO_5000) |
| 1773 | val |= EXT_BUS_CTL_PCIBURST_READ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | |
Woody Suwalski | cd792aa | 2007-02-12 00:55:00 -0800 | [diff] [blame] | 1775 | cyber2000_grphw(EXT_BUS_CTL, val, cfb); |
| 1776 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | } |
| 1778 | |
| 1779 | return 0; |
| 1780 | } |
| 1781 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1782 | static int cyberpro_pci_probe(struct pci_dev *dev, |
| 1783 | const struct pci_device_id *id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | { |
| 1785 | struct cfb_info *cfb; |
| 1786 | char name[16]; |
| 1787 | int err; |
| 1788 | |
| 1789 | sprintf(name, "CyberPro%4X", id->device); |
| 1790 | |
| 1791 | err = pci_enable_device(dev); |
| 1792 | if (err) |
| 1793 | return err; |
| 1794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | err = -ENOMEM; |
| 1796 | cfb = cyberpro_alloc_fb_info(id->driver_data, name); |
| 1797 | if (!cfb) |
| 1798 | goto failed_release; |
| 1799 | |
Russell King | ed5a35a | 2009-12-24 13:36:21 +0000 | [diff] [blame] | 1800 | err = pci_request_regions(dev, cfb->fb.fix.id); |
| 1801 | if (err) |
| 1802 | goto failed_regions; |
| 1803 | |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1804 | cfb->irq = dev->irq; |
Arjan van de Ven | 3c36aa5 | 2009-01-06 14:42:28 -0800 | [diff] [blame] | 1805 | cfb->region = pci_ioremap_bar(dev, 0); |
Peter Senna Tschudin | 7c4c72f | 2012-09-18 14:07:58 +0200 | [diff] [blame] | 1806 | if (!cfb->region) { |
| 1807 | err = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | goto failed_ioremap; |
Peter Senna Tschudin | 7c4c72f | 2012-09-18 14:07:58 +0200 | [diff] [blame] | 1809 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | |
| 1811 | cfb->regs = cfb->region + MMIO_OFFSET; |
Russell King | 24d6e5c | 2010-08-01 10:18:29 +0100 | [diff] [blame] | 1812 | cfb->fb.device = &dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | cfb->fb.fix.mmio_start = pci_resource_start(dev, 0) + MMIO_OFFSET; |
| 1814 | cfb->fb.fix.smem_start = pci_resource_start(dev, 0); |
| 1815 | |
| 1816 | /* |
| 1817 | * Bring up the hardware. This is expected to enable access |
| 1818 | * to the linear memory region, and allow access to the memory |
| 1819 | * mapped registers. Also, mem_ctl1 and mem_ctl2 must be |
| 1820 | * initialised. |
| 1821 | */ |
| 1822 | err = cyberpro_pci_enable_mmio(cfb); |
| 1823 | if (err) |
| 1824 | goto failed; |
| 1825 | |
| 1826 | /* |
| 1827 | * Use MCLK from BIOS. FIXME: what about hotplug? |
| 1828 | */ |
| 1829 | cfb->mclk_mult = cyber2000_grphr(EXT_MCLK_MULT, cfb); |
| 1830 | cfb->mclk_div = cyber2000_grphr(EXT_MCLK_DIV, cfb); |
| 1831 | |
| 1832 | #ifdef __arm__ |
| 1833 | /* |
| 1834 | * MCLK on the NetWinder and the Shark is fixed at 75MHz |
| 1835 | */ |
| 1836 | if (machine_is_netwinder()) { |
| 1837 | cfb->mclk_mult = 0xdb; |
| 1838 | cfb->mclk_div = 0x54; |
| 1839 | } |
| 1840 | #endif |
| 1841 | |
| 1842 | err = cyberpro_common_probe(cfb); |
| 1843 | if (err) |
| 1844 | goto failed; |
| 1845 | |
| 1846 | /* |
| 1847 | * Our driver data |
| 1848 | */ |
| 1849 | pci_set_drvdata(dev, cfb); |
| 1850 | if (int_cfb_info == NULL) |
| 1851 | int_cfb_info = cfb; |
| 1852 | |
| 1853 | return 0; |
| 1854 | |
| 1855 | failed: |
| 1856 | iounmap(cfb->region); |
| 1857 | failed_ioremap: |
Russell King | ed5a35a | 2009-12-24 13:36:21 +0000 | [diff] [blame] | 1858 | pci_release_regions(dev); |
| 1859 | failed_regions: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | cyberpro_free_fb_info(cfb); |
| 1861 | failed_release: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1862 | return err; |
| 1863 | } |
| 1864 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1865 | static void cyberpro_pci_remove(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1866 | { |
| 1867 | struct cfb_info *cfb = pci_get_drvdata(dev); |
| 1868 | |
| 1869 | if (cfb) { |
Russell King | b7ca01a | 2010-08-02 09:57:07 +0100 | [diff] [blame] | 1870 | cyberpro_common_remove(cfb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | iounmap(cfb->region); |
| 1872 | cyberpro_free_fb_info(cfb); |
| 1873 | |
| 1874 | /* |
| 1875 | * Ensure that the driver data is no longer |
| 1876 | * valid. |
| 1877 | */ |
| 1878 | pci_set_drvdata(dev, NULL); |
| 1879 | if (cfb == int_cfb_info) |
| 1880 | int_cfb_info = NULL; |
| 1881 | |
| 1882 | pci_release_regions(dev); |
| 1883 | } |
| 1884 | } |
| 1885 | |
| 1886 | static int cyberpro_pci_suspend(struct pci_dev *dev, pm_message_t state) |
| 1887 | { |
| 1888 | return 0; |
| 1889 | } |
| 1890 | |
| 1891 | /* |
| 1892 | * Re-initialise the CyberPro hardware |
| 1893 | */ |
| 1894 | static int cyberpro_pci_resume(struct pci_dev *dev) |
| 1895 | { |
| 1896 | struct cfb_info *cfb = pci_get_drvdata(dev); |
| 1897 | |
| 1898 | if (cfb) { |
| 1899 | cyberpro_pci_enable_mmio(cfb); |
| 1900 | cyberpro_common_resume(cfb); |
| 1901 | } |
| 1902 | |
| 1903 | return 0; |
| 1904 | } |
| 1905 | |
| 1906 | static struct pci_device_id cyberpro_pci_table[] = { |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1907 | /* Not yet |
| 1908 | * { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_1682, |
| 1909 | * PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_IGA_1682 }, |
| 1910 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1911 | { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2000, |
| 1912 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_CYBERPRO_2000 }, |
| 1913 | { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2010, |
| 1914 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_CYBERPRO_2010 }, |
| 1915 | { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5000, |
| 1916 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_CYBERPRO_5000 }, |
| 1917 | { 0, } |
| 1918 | }; |
| 1919 | |
Krzysztof Helt | 532237e | 2007-10-18 23:40:28 -0700 | [diff] [blame] | 1920 | MODULE_DEVICE_TABLE(pci, cyberpro_pci_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | |
| 1922 | static struct pci_driver cyberpro_driver = { |
| 1923 | .name = "CyberPro", |
| 1924 | .probe = cyberpro_pci_probe, |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1925 | .remove = cyberpro_pci_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | .suspend = cyberpro_pci_suspend, |
| 1927 | .resume = cyberpro_pci_resume, |
| 1928 | .id_table = cyberpro_pci_table |
| 1929 | }; |
| 1930 | #endif |
| 1931 | |
| 1932 | /* |
| 1933 | * I don't think we can use the "module_init" stuff here because |
| 1934 | * the fbcon stuff may not be initialised yet. Hence the #ifdef |
| 1935 | * around module_init. |
| 1936 | * |
| 1937 | * Tony: "module_init" is now required |
| 1938 | */ |
| 1939 | static int __init cyber2000fb_init(void) |
| 1940 | { |
| 1941 | int ret = -1, err; |
| 1942 | |
| 1943 | #ifndef MODULE |
| 1944 | char *option = NULL; |
| 1945 | |
| 1946 | if (fb_get_options("cyber2000fb", &option)) |
| 1947 | return -ENODEV; |
| 1948 | cyber2000fb_setup(option); |
| 1949 | #endif |
| 1950 | |
| 1951 | #ifdef CONFIG_ARCH_SHARK |
| 1952 | err = cyberpro_vl_probe(); |
Rusty Russell | ab8e2eb | 2009-06-12 21:46:50 -0600 | [diff] [blame] | 1953 | if (!err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1954 | ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | #endif |
| 1956 | #ifdef CONFIG_PCI |
| 1957 | err = pci_register_driver(&cyberpro_driver); |
| 1958 | if (!err) |
| 1959 | ret = 0; |
| 1960 | #endif |
| 1961 | |
| 1962 | return ret ? err : 0; |
| 1963 | } |
Rusty Russell | ab8e2eb | 2009-06-12 21:46:50 -0600 | [diff] [blame] | 1964 | module_init(cyber2000fb_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1965 | |
Rusty Russell | ab8e2eb | 2009-06-12 21:46:50 -0600 | [diff] [blame] | 1966 | #ifndef CONFIG_ARCH_SHARK |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1967 | static void __exit cyberpro_exit(void) |
| 1968 | { |
| 1969 | pci_unregister_driver(&cyberpro_driver); |
| 1970 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | module_exit(cyberpro_exit); |
Rusty Russell | ab8e2eb | 2009-06-12 21:46:50 -0600 | [diff] [blame] | 1972 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1973 | |
| 1974 | MODULE_AUTHOR("Russell King"); |
| 1975 | MODULE_DESCRIPTION("CyberPro 2000, 2010 and 5000 framebuffer driver"); |
| 1976 | MODULE_LICENSE("GPL"); |