Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* ffb.c: Creator/Elite3D frame buffer driver |
| 2 | * |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 3 | * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@ultra.linux.cz) |
| 5 | * |
| 6 | * Driver layout based loosely on tgafb.c, see that file for credits. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/module.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/errno.h> |
| 12 | #include <linux/string.h> |
| 13 | #include <linux/slab.h> |
| 14 | #include <linux/delay.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/fb.h> |
| 17 | #include <linux/mm.h> |
| 18 | #include <linux/timer.h> |
| 19 | |
| 20 | #include <asm/io.h> |
| 21 | #include <asm/upa.h> |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 22 | #include <asm/prom.h> |
| 23 | #include <asm/of_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <asm/fbio.h> |
| 25 | |
| 26 | #include "sbuslib.h" |
| 27 | |
| 28 | /* |
| 29 | * Local functions. |
| 30 | */ |
| 31 | |
| 32 | static int ffb_setcolreg(unsigned, unsigned, unsigned, unsigned, |
| 33 | unsigned, struct fb_info *); |
| 34 | static int ffb_blank(int, struct fb_info *); |
| 35 | static void ffb_init_fix(struct fb_info *); |
| 36 | |
| 37 | static void ffb_imageblit(struct fb_info *, const struct fb_image *); |
| 38 | static void ffb_fillrect(struct fb_info *, const struct fb_fillrect *); |
| 39 | static void ffb_copyarea(struct fb_info *, const struct fb_copyarea *); |
| 40 | static int ffb_sync(struct fb_info *); |
Christoph Hellwig | 216d526 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 41 | static int ffb_mmap(struct fb_info *, struct vm_area_struct *); |
Christoph Hellwig | 67a6680 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 42 | static int ffb_ioctl(struct fb_info *, unsigned int, unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | static int ffb_pan_display(struct fb_var_screeninfo *, struct fb_info *); |
| 44 | |
| 45 | /* |
| 46 | * Frame buffer operations |
| 47 | */ |
| 48 | |
| 49 | static struct fb_ops ffb_ops = { |
| 50 | .owner = THIS_MODULE, |
| 51 | .fb_setcolreg = ffb_setcolreg, |
| 52 | .fb_blank = ffb_blank, |
| 53 | .fb_pan_display = ffb_pan_display, |
| 54 | .fb_fillrect = ffb_fillrect, |
| 55 | .fb_copyarea = ffb_copyarea, |
| 56 | .fb_imageblit = ffb_imageblit, |
| 57 | .fb_sync = ffb_sync, |
| 58 | .fb_mmap = ffb_mmap, |
| 59 | .fb_ioctl = ffb_ioctl, |
Christoph Hellwig | 9ffb83b | 2005-11-12 12:11:12 -0800 | [diff] [blame] | 60 | #ifdef CONFIG_COMPAT |
| 61 | .fb_compat_ioctl = sbusfb_compat_ioctl, |
| 62 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | }; |
| 64 | |
| 65 | /* Register layout and definitions */ |
| 66 | #define FFB_SFB8R_VOFF 0x00000000 |
| 67 | #define FFB_SFB8G_VOFF 0x00400000 |
| 68 | #define FFB_SFB8B_VOFF 0x00800000 |
| 69 | #define FFB_SFB8X_VOFF 0x00c00000 |
| 70 | #define FFB_SFB32_VOFF 0x01000000 |
| 71 | #define FFB_SFB64_VOFF 0x02000000 |
| 72 | #define FFB_FBC_REGS_VOFF 0x04000000 |
| 73 | #define FFB_BM_FBC_REGS_VOFF 0x04002000 |
| 74 | #define FFB_DFB8R_VOFF 0x04004000 |
| 75 | #define FFB_DFB8G_VOFF 0x04404000 |
| 76 | #define FFB_DFB8B_VOFF 0x04804000 |
| 77 | #define FFB_DFB8X_VOFF 0x04c04000 |
| 78 | #define FFB_DFB24_VOFF 0x05004000 |
| 79 | #define FFB_DFB32_VOFF 0x06004000 |
| 80 | #define FFB_DFB422A_VOFF 0x07004000 /* DFB 422 mode write to A */ |
| 81 | #define FFB_DFB422AD_VOFF 0x07804000 /* DFB 422 mode with line doubling */ |
| 82 | #define FFB_DFB24B_VOFF 0x08004000 /* DFB 24bit mode write to B */ |
| 83 | #define FFB_DFB422B_VOFF 0x09004000 /* DFB 422 mode write to B */ |
| 84 | #define FFB_DFB422BD_VOFF 0x09804000 /* DFB 422 mode with line doubling */ |
| 85 | #define FFB_SFB16Z_VOFF 0x0a004000 /* 16bit mode Z planes */ |
| 86 | #define FFB_SFB8Z_VOFF 0x0a404000 /* 8bit mode Z planes */ |
| 87 | #define FFB_SFB422_VOFF 0x0ac04000 /* SFB 422 mode write to A/B */ |
| 88 | #define FFB_SFB422D_VOFF 0x0b404000 /* SFB 422 mode with line doubling */ |
| 89 | #define FFB_FBC_KREGS_VOFF 0x0bc04000 |
| 90 | #define FFB_DAC_VOFF 0x0bc06000 |
| 91 | #define FFB_PROM_VOFF 0x0bc08000 |
| 92 | #define FFB_EXP_VOFF 0x0bc18000 |
| 93 | |
| 94 | #define FFB_SFB8R_POFF 0x04000000UL |
| 95 | #define FFB_SFB8G_POFF 0x04400000UL |
| 96 | #define FFB_SFB8B_POFF 0x04800000UL |
| 97 | #define FFB_SFB8X_POFF 0x04c00000UL |
| 98 | #define FFB_SFB32_POFF 0x05000000UL |
| 99 | #define FFB_SFB64_POFF 0x06000000UL |
| 100 | #define FFB_FBC_REGS_POFF 0x00600000UL |
| 101 | #define FFB_BM_FBC_REGS_POFF 0x00600000UL |
| 102 | #define FFB_DFB8R_POFF 0x01000000UL |
| 103 | #define FFB_DFB8G_POFF 0x01400000UL |
| 104 | #define FFB_DFB8B_POFF 0x01800000UL |
| 105 | #define FFB_DFB8X_POFF 0x01c00000UL |
| 106 | #define FFB_DFB24_POFF 0x02000000UL |
| 107 | #define FFB_DFB32_POFF 0x03000000UL |
| 108 | #define FFB_FBC_KREGS_POFF 0x00610000UL |
| 109 | #define FFB_DAC_POFF 0x00400000UL |
| 110 | #define FFB_PROM_POFF 0x00000000UL |
| 111 | #define FFB_EXP_POFF 0x00200000UL |
| 112 | #define FFB_DFB422A_POFF 0x09000000UL |
| 113 | #define FFB_DFB422AD_POFF 0x09800000UL |
| 114 | #define FFB_DFB24B_POFF 0x0a000000UL |
| 115 | #define FFB_DFB422B_POFF 0x0b000000UL |
| 116 | #define FFB_DFB422BD_POFF 0x0b800000UL |
| 117 | #define FFB_SFB16Z_POFF 0x0c800000UL |
| 118 | #define FFB_SFB8Z_POFF 0x0c000000UL |
| 119 | #define FFB_SFB422_POFF 0x0d000000UL |
| 120 | #define FFB_SFB422D_POFF 0x0d800000UL |
| 121 | |
| 122 | /* Draw operations */ |
| 123 | #define FFB_DRAWOP_DOT 0x00 |
| 124 | #define FFB_DRAWOP_AADOT 0x01 |
| 125 | #define FFB_DRAWOP_BRLINECAP 0x02 |
| 126 | #define FFB_DRAWOP_BRLINEOPEN 0x03 |
| 127 | #define FFB_DRAWOP_DDLINE 0x04 |
| 128 | #define FFB_DRAWOP_AALINE 0x05 |
| 129 | #define FFB_DRAWOP_TRIANGLE 0x06 |
| 130 | #define FFB_DRAWOP_POLYGON 0x07 |
| 131 | #define FFB_DRAWOP_RECTANGLE 0x08 |
| 132 | #define FFB_DRAWOP_FASTFILL 0x09 |
| 133 | #define FFB_DRAWOP_BCOPY 0x0a |
| 134 | #define FFB_DRAWOP_VSCROLL 0x0b |
| 135 | |
| 136 | /* Pixel processor control */ |
| 137 | /* Force WID */ |
| 138 | #define FFB_PPC_FW_DISABLE 0x800000 |
| 139 | #define FFB_PPC_FW_ENABLE 0xc00000 |
| 140 | /* Auxiliary clip */ |
| 141 | #define FFB_PPC_ACE_DISABLE 0x040000 |
| 142 | #define FFB_PPC_ACE_AUX_SUB 0x080000 |
| 143 | #define FFB_PPC_ACE_AUX_ADD 0x0c0000 |
| 144 | /* Depth cue */ |
| 145 | #define FFB_PPC_DCE_DISABLE 0x020000 |
| 146 | #define FFB_PPC_DCE_ENABLE 0x030000 |
| 147 | /* Alpha blend */ |
| 148 | #define FFB_PPC_ABE_DISABLE 0x008000 |
| 149 | #define FFB_PPC_ABE_ENABLE 0x00c000 |
| 150 | /* View clip */ |
| 151 | #define FFB_PPC_VCE_DISABLE 0x001000 |
| 152 | #define FFB_PPC_VCE_2D 0x002000 |
| 153 | #define FFB_PPC_VCE_3D 0x003000 |
| 154 | /* Area pattern */ |
| 155 | #define FFB_PPC_APE_DISABLE 0x000800 |
| 156 | #define FFB_PPC_APE_ENABLE 0x000c00 |
| 157 | /* Transparent background */ |
| 158 | #define FFB_PPC_TBE_OPAQUE 0x000200 |
| 159 | #define FFB_PPC_TBE_TRANSPARENT 0x000300 |
| 160 | /* Z source */ |
| 161 | #define FFB_PPC_ZS_VAR 0x000080 |
| 162 | #define FFB_PPC_ZS_CONST 0x0000c0 |
| 163 | /* Y source */ |
| 164 | #define FFB_PPC_YS_VAR 0x000020 |
| 165 | #define FFB_PPC_YS_CONST 0x000030 |
| 166 | /* X source */ |
| 167 | #define FFB_PPC_XS_WID 0x000004 |
| 168 | #define FFB_PPC_XS_VAR 0x000008 |
| 169 | #define FFB_PPC_XS_CONST 0x00000c |
| 170 | /* Color (BGR) source */ |
| 171 | #define FFB_PPC_CS_VAR 0x000002 |
| 172 | #define FFB_PPC_CS_CONST 0x000003 |
| 173 | |
| 174 | #define FFB_ROP_NEW 0x83 |
| 175 | #define FFB_ROP_OLD 0x85 |
| 176 | #define FFB_ROP_NEW_XOR_OLD 0x86 |
| 177 | |
| 178 | #define FFB_UCSR_FIFO_MASK 0x00000fff |
| 179 | #define FFB_UCSR_FB_BUSY 0x01000000 |
| 180 | #define FFB_UCSR_RP_BUSY 0x02000000 |
| 181 | #define FFB_UCSR_ALL_BUSY (FFB_UCSR_RP_BUSY|FFB_UCSR_FB_BUSY) |
| 182 | #define FFB_UCSR_READ_ERR 0x40000000 |
| 183 | #define FFB_UCSR_FIFO_OVFL 0x80000000 |
| 184 | #define FFB_UCSR_ALL_ERRORS (FFB_UCSR_READ_ERR|FFB_UCSR_FIFO_OVFL) |
| 185 | |
| 186 | struct ffb_fbc { |
| 187 | /* Next vertex registers */ |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 188 | u32 xxx1[3]; |
| 189 | u32 alpha; |
| 190 | u32 red; |
| 191 | u32 green; |
| 192 | u32 blue; |
| 193 | u32 depth; |
| 194 | u32 y; |
| 195 | u32 x; |
| 196 | u32 xxx2[2]; |
| 197 | u32 ryf; |
| 198 | u32 rxf; |
| 199 | u32 xxx3[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 201 | u32 dmyf; |
| 202 | u32 dmxf; |
| 203 | u32 xxx4[2]; |
| 204 | u32 ebyi; |
| 205 | u32 ebxi; |
| 206 | u32 xxx5[2]; |
| 207 | u32 by; |
| 208 | u32 bx; |
| 209 | u32 dy; |
| 210 | u32 dx; |
| 211 | u32 bh; |
| 212 | u32 bw; |
| 213 | u32 xxx6[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 215 | u32 xxx7[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | /* Setup unit vertex state register */ |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 218 | u32 suvtx; |
| 219 | u32 xxx8[63]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | /* Control registers */ |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 222 | u32 ppc; |
| 223 | u32 wid; |
| 224 | u32 fg; |
| 225 | u32 bg; |
| 226 | u32 consty; |
| 227 | u32 constz; |
| 228 | u32 xclip; |
| 229 | u32 dcss; |
| 230 | u32 vclipmin; |
| 231 | u32 vclipmax; |
| 232 | u32 vclipzmin; |
| 233 | u32 vclipzmax; |
| 234 | u32 dcsf; |
| 235 | u32 dcsb; |
| 236 | u32 dczf; |
| 237 | u32 dczb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 239 | u32 xxx9; |
| 240 | u32 blendc; |
| 241 | u32 blendc1; |
| 242 | u32 blendc2; |
| 243 | u32 fbramitc; |
| 244 | u32 fbc; |
| 245 | u32 rop; |
| 246 | u32 cmp; |
| 247 | u32 matchab; |
| 248 | u32 matchc; |
| 249 | u32 magnab; |
| 250 | u32 magnc; |
| 251 | u32 fbcfg0; |
| 252 | u32 fbcfg1; |
| 253 | u32 fbcfg2; |
| 254 | u32 fbcfg3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 256 | u32 ppcfg; |
| 257 | u32 pick; |
| 258 | u32 fillmode; |
| 259 | u32 fbramwac; |
| 260 | u32 pmask; |
| 261 | u32 xpmask; |
| 262 | u32 ypmask; |
| 263 | u32 zpmask; |
| 264 | u32 clip0min; |
| 265 | u32 clip0max; |
| 266 | u32 clip1min; |
| 267 | u32 clip1max; |
| 268 | u32 clip2min; |
| 269 | u32 clip2max; |
| 270 | u32 clip3min; |
| 271 | u32 clip3max; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
| 273 | /* New 3dRAM III support regs */ |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 274 | u32 rawblend2; |
| 275 | u32 rawpreblend; |
| 276 | u32 rawstencil; |
| 277 | u32 rawstencilctl; |
| 278 | u32 threedram1; |
| 279 | u32 threedram2; |
| 280 | u32 passin; |
| 281 | u32 rawclrdepth; |
| 282 | u32 rawpmask; |
| 283 | u32 rawcsrc; |
| 284 | u32 rawmatch; |
| 285 | u32 rawmagn; |
| 286 | u32 rawropblend; |
| 287 | u32 rawcmp; |
| 288 | u32 rawwac; |
| 289 | u32 fbramid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 291 | u32 drawop; |
| 292 | u32 xxx10[2]; |
| 293 | u32 fontlpat; |
| 294 | u32 xxx11; |
| 295 | u32 fontxy; |
| 296 | u32 fontw; |
| 297 | u32 fontinc; |
| 298 | u32 font; |
| 299 | u32 xxx12[3]; |
| 300 | u32 blend2; |
| 301 | u32 preblend; |
| 302 | u32 stencil; |
| 303 | u32 stencilctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 305 | u32 xxx13[4]; |
| 306 | u32 dcss1; |
| 307 | u32 dcss2; |
| 308 | u32 dcss3; |
| 309 | u32 widpmask; |
| 310 | u32 dcs2; |
| 311 | u32 dcs3; |
| 312 | u32 dcs4; |
| 313 | u32 xxx14; |
| 314 | u32 dcd2; |
| 315 | u32 dcd3; |
| 316 | u32 dcd4; |
| 317 | u32 xxx15; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 319 | u32 pattern[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 321 | u32 xxx16[256]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 323 | u32 devid; |
| 324 | u32 xxx17[63]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 326 | u32 ucsr; |
| 327 | u32 xxx18[31]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 329 | u32 mer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | }; |
| 331 | |
| 332 | struct ffb_dac { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 333 | u32 type; |
| 334 | u32 value; |
| 335 | u32 type2; |
| 336 | u32 value2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | }; |
| 338 | |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 339 | #define FFB_DAC_UCTRL 0x1001 /* User Control */ |
| 340 | #define FFB_DAC_UCTRL_MANREV 0x00000f00 /* 4-bit Manufacturing Revision */ |
| 341 | #define FFB_DAC_UCTRL_MANREV_SHIFT 8 |
| 342 | #define FFB_DAC_TGEN 0x6000 /* Timing Generator */ |
| 343 | #define FFB_DAC_TGEN_VIDE 0x00000001 /* Video Enable */ |
| 344 | #define FFB_DAC_DID 0x8000 /* Device Identification */ |
| 345 | #define FFB_DAC_DID_PNUM 0x0ffff000 /* Device Part Number */ |
| 346 | #define FFB_DAC_DID_PNUM_SHIFT 12 |
| 347 | #define FFB_DAC_DID_REV 0xf0000000 /* Device Revision */ |
| 348 | #define FFB_DAC_DID_REV_SHIFT 28 |
| 349 | |
| 350 | #define FFB_DAC_CUR_CTRL 0x100 |
| 351 | #define FFB_DAC_CUR_CTRL_P0 0x00000001 |
| 352 | #define FFB_DAC_CUR_CTRL_P1 0x00000002 |
| 353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | struct ffb_par { |
| 355 | spinlock_t lock; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 356 | struct ffb_fbc __iomem *fbc; |
| 357 | struct ffb_dac __iomem *dac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
| 359 | u32 flags; |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 360 | #define FFB_FLAG_AFB 0x00000001 /* AFB m3 or m6 */ |
| 361 | #define FFB_FLAG_BLANKED 0x00000002 /* screen is blanked */ |
| 362 | #define FFB_FLAG_INVCURSOR 0x00000004 /* DAC has inverted cursor logic */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | u32 fg_cache __attribute__((aligned (8))); |
| 365 | u32 bg_cache; |
| 366 | u32 rop_cache; |
| 367 | |
| 368 | int fifo_cache; |
| 369 | |
| 370 | unsigned long physbase; |
| 371 | unsigned long fbsize; |
| 372 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | int board_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | }; |
| 375 | |
| 376 | static void FFBFifo(struct ffb_par *par, int n) |
| 377 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 378 | struct ffb_fbc __iomem *fbc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | int cache = par->fifo_cache; |
| 380 | |
| 381 | if (cache - n < 0) { |
| 382 | fbc = par->fbc; |
| 383 | do { cache = (upa_readl(&fbc->ucsr) & FFB_UCSR_FIFO_MASK) - 8; |
| 384 | } while (cache - n < 0); |
| 385 | } |
| 386 | par->fifo_cache = cache - n; |
| 387 | } |
| 388 | |
| 389 | static void FFBWait(struct ffb_par *par) |
| 390 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 391 | struct ffb_fbc __iomem *fbc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | int limit = 10000; |
| 393 | |
| 394 | fbc = par->fbc; |
| 395 | do { |
| 396 | if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_BUSY) == 0) |
| 397 | break; |
| 398 | if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_ERRORS) != 0) { |
| 399 | upa_writel(FFB_UCSR_ALL_ERRORS, &fbc->ucsr); |
| 400 | } |
| 401 | udelay(10); |
| 402 | } while(--limit > 0); |
| 403 | } |
| 404 | |
| 405 | static int ffb_sync(struct fb_info *p) |
| 406 | { |
| 407 | struct ffb_par *par = (struct ffb_par *) p->par; |
| 408 | |
| 409 | FFBWait(par); |
| 410 | return 0; |
| 411 | } |
| 412 | |
| 413 | static __inline__ void ffb_rop(struct ffb_par *par, u32 rop) |
| 414 | { |
| 415 | if (par->rop_cache != rop) { |
| 416 | FFBFifo(par, 1); |
| 417 | upa_writel(rop, &par->fbc->rop); |
| 418 | par->rop_cache = rop; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | static void ffb_switch_from_graph(struct ffb_par *par) |
| 423 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 424 | struct ffb_fbc __iomem *fbc = par->fbc; |
| 425 | struct ffb_dac __iomem *dac = par->dac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | unsigned long flags; |
| 427 | |
| 428 | spin_lock_irqsave(&par->lock, flags); |
| 429 | FFBWait(par); |
| 430 | par->fifo_cache = 0; |
| 431 | FFBFifo(par, 7); |
| 432 | upa_writel(FFB_PPC_VCE_DISABLE|FFB_PPC_TBE_OPAQUE| |
| 433 | FFB_PPC_APE_DISABLE|FFB_PPC_CS_CONST, |
| 434 | &fbc->ppc); |
| 435 | upa_writel(0x2000707f, &fbc->fbc); |
| 436 | upa_writel(par->rop_cache, &fbc->rop); |
| 437 | upa_writel(0xffffffff, &fbc->pmask); |
| 438 | upa_writel((1 << 16) | (0 << 0), &fbc->fontinc); |
| 439 | upa_writel(par->fg_cache, &fbc->fg); |
| 440 | upa_writel(par->bg_cache, &fbc->bg); |
| 441 | FFBWait(par); |
| 442 | |
| 443 | /* Disable cursor. */ |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 444 | upa_writel(FFB_DAC_CUR_CTRL, &dac->type2); |
| 445 | if (par->flags & FFB_FLAG_INVCURSOR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | upa_writel(0, &dac->value2); |
| 447 | else |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 448 | upa_writel((FFB_DAC_CUR_CTRL_P0 | |
| 449 | FFB_DAC_CUR_CTRL_P1), &dac->value2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
| 451 | spin_unlock_irqrestore(&par->lock, flags); |
| 452 | } |
| 453 | |
| 454 | static int ffb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
| 455 | { |
| 456 | struct ffb_par *par = (struct ffb_par *) info->par; |
| 457 | |
| 458 | /* We just use this to catch switches out of |
| 459 | * graphics mode. |
| 460 | */ |
| 461 | ffb_switch_from_graph(par); |
| 462 | |
| 463 | if (var->xoffset || var->yoffset || var->vmode) |
| 464 | return -EINVAL; |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * ffb_fillrect - REQUIRED function. Can use generic routines if |
| 470 | * non acclerated hardware and packed pixel based. |
| 471 | * Draws a rectangle on the screen. |
| 472 | * |
| 473 | * @info: frame buffer structure that represents a single frame buffer |
| 474 | * @rect: structure defining the rectagle and operation. |
| 475 | */ |
| 476 | static void ffb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 477 | { |
| 478 | struct ffb_par *par = (struct ffb_par *) info->par; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 479 | struct ffb_fbc __iomem *fbc = par->fbc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | unsigned long flags; |
| 481 | u32 fg; |
| 482 | |
Eric Sesterhenn | 232443e | 2006-03-24 18:53:18 +0100 | [diff] [blame] | 483 | BUG_ON(rect->rop != ROP_COPY && rect->rop != ROP_XOR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | |
| 485 | fg = ((u32 *)info->pseudo_palette)[rect->color]; |
| 486 | |
| 487 | spin_lock_irqsave(&par->lock, flags); |
| 488 | |
| 489 | if (fg != par->fg_cache) { |
| 490 | FFBFifo(par, 1); |
| 491 | upa_writel(fg, &fbc->fg); |
| 492 | par->fg_cache = fg; |
| 493 | } |
| 494 | |
| 495 | ffb_rop(par, (rect->rop == ROP_COPY ? |
| 496 | FFB_ROP_NEW : |
| 497 | FFB_ROP_NEW_XOR_OLD)); |
| 498 | |
| 499 | FFBFifo(par, 5); |
| 500 | upa_writel(FFB_DRAWOP_RECTANGLE, &fbc->drawop); |
| 501 | upa_writel(rect->dy, &fbc->by); |
| 502 | upa_writel(rect->dx, &fbc->bx); |
| 503 | upa_writel(rect->height, &fbc->bh); |
| 504 | upa_writel(rect->width, &fbc->bw); |
| 505 | |
| 506 | spin_unlock_irqrestore(&par->lock, flags); |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * ffb_copyarea - REQUIRED function. Can use generic routines if |
| 511 | * non acclerated hardware and packed pixel based. |
| 512 | * Copies on area of the screen to another area. |
| 513 | * |
| 514 | * @info: frame buffer structure that represents a single frame buffer |
| 515 | * @area: structure defining the source and destination. |
| 516 | */ |
| 517 | |
| 518 | static void |
| 519 | ffb_copyarea(struct fb_info *info, const struct fb_copyarea *area) |
| 520 | { |
| 521 | struct ffb_par *par = (struct ffb_par *) info->par; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 522 | struct ffb_fbc __iomem *fbc = par->fbc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | unsigned long flags; |
| 524 | |
| 525 | if (area->dx != area->sx || |
| 526 | area->dy == area->sy) { |
| 527 | cfb_copyarea(info, area); |
| 528 | return; |
| 529 | } |
| 530 | |
| 531 | spin_lock_irqsave(&par->lock, flags); |
| 532 | |
| 533 | ffb_rop(par, FFB_ROP_OLD); |
| 534 | |
| 535 | FFBFifo(par, 7); |
| 536 | upa_writel(FFB_DRAWOP_VSCROLL, &fbc->drawop); |
| 537 | upa_writel(area->sy, &fbc->by); |
| 538 | upa_writel(area->sx, &fbc->bx); |
| 539 | upa_writel(area->dy, &fbc->dy); |
| 540 | upa_writel(area->dx, &fbc->dx); |
| 541 | upa_writel(area->height, &fbc->bh); |
| 542 | upa_writel(area->width, &fbc->bw); |
| 543 | |
| 544 | spin_unlock_irqrestore(&par->lock, flags); |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * ffb_imageblit - REQUIRED function. Can use generic routines if |
| 549 | * non acclerated hardware and packed pixel based. |
| 550 | * Copies a image from system memory to the screen. |
| 551 | * |
| 552 | * @info: frame buffer structure that represents a single frame buffer |
| 553 | * @image: structure defining the image. |
| 554 | */ |
| 555 | static void ffb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 556 | { |
| 557 | struct ffb_par *par = (struct ffb_par *) info->par; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 558 | struct ffb_fbc __iomem *fbc = par->fbc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | const u8 *data = image->data; |
| 560 | unsigned long flags; |
| 561 | u32 fg, bg, xy; |
| 562 | u64 fgbg; |
| 563 | int i, width, stride; |
| 564 | |
| 565 | if (image->depth > 1) { |
| 566 | cfb_imageblit(info, image); |
| 567 | return; |
| 568 | } |
| 569 | |
| 570 | fg = ((u32 *)info->pseudo_palette)[image->fg_color]; |
| 571 | bg = ((u32 *)info->pseudo_palette)[image->bg_color]; |
| 572 | fgbg = ((u64) fg << 32) | (u64) bg; |
| 573 | xy = (image->dy << 16) | image->dx; |
| 574 | width = image->width; |
| 575 | stride = ((width + 7) >> 3); |
| 576 | |
| 577 | spin_lock_irqsave(&par->lock, flags); |
| 578 | |
| 579 | if (fgbg != *(u64 *)&par->fg_cache) { |
| 580 | FFBFifo(par, 2); |
| 581 | upa_writeq(fgbg, &fbc->fg); |
| 582 | *(u64 *)&par->fg_cache = fgbg; |
| 583 | } |
| 584 | |
| 585 | if (width >= 32) { |
| 586 | FFBFifo(par, 1); |
| 587 | upa_writel(32, &fbc->fontw); |
| 588 | } |
| 589 | |
| 590 | while (width >= 32) { |
| 591 | const u8 *next_data = data + 4; |
| 592 | |
| 593 | FFBFifo(par, 1); |
| 594 | upa_writel(xy, &fbc->fontxy); |
| 595 | xy += (32 << 0); |
| 596 | |
| 597 | for (i = 0; i < image->height; i++) { |
| 598 | u32 val = (((u32)data[0] << 24) | |
| 599 | ((u32)data[1] << 16) | |
| 600 | ((u32)data[2] << 8) | |
| 601 | ((u32)data[3] << 0)); |
| 602 | FFBFifo(par, 1); |
| 603 | upa_writel(val, &fbc->font); |
| 604 | |
| 605 | data += stride; |
| 606 | } |
| 607 | |
| 608 | data = next_data; |
| 609 | width -= 32; |
| 610 | } |
| 611 | |
| 612 | if (width) { |
| 613 | FFBFifo(par, 2); |
| 614 | upa_writel(width, &fbc->fontw); |
| 615 | upa_writel(xy, &fbc->fontxy); |
| 616 | |
| 617 | for (i = 0; i < image->height; i++) { |
| 618 | u32 val = (((u32)data[0] << 24) | |
| 619 | ((u32)data[1] << 16) | |
| 620 | ((u32)data[2] << 8) | |
| 621 | ((u32)data[3] << 0)); |
| 622 | FFBFifo(par, 1); |
| 623 | upa_writel(val, &fbc->font); |
| 624 | |
| 625 | data += stride; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | spin_unlock_irqrestore(&par->lock, flags); |
| 630 | } |
| 631 | |
| 632 | static void ffb_fixup_var_rgb(struct fb_var_screeninfo *var) |
| 633 | { |
| 634 | var->red.offset = 0; |
| 635 | var->red.length = 8; |
| 636 | var->green.offset = 8; |
| 637 | var->green.length = 8; |
| 638 | var->blue.offset = 16; |
| 639 | var->blue.length = 8; |
| 640 | var->transp.offset = 0; |
| 641 | var->transp.length = 0; |
| 642 | } |
| 643 | |
| 644 | /** |
| 645 | * ffb_setcolreg - Optional function. Sets a color register. |
| 646 | * @regno: boolean, 0 copy local, 1 get_user() function |
| 647 | * @red: frame buffer colormap structure |
| 648 | * @green: The green value which can be up to 16 bits wide |
| 649 | * @blue: The blue value which can be up to 16 bits wide. |
| 650 | * @transp: If supported the alpha value which can be up to 16 bits wide. |
| 651 | * @info: frame buffer info structure |
| 652 | */ |
| 653 | static int ffb_setcolreg(unsigned regno, |
| 654 | unsigned red, unsigned green, unsigned blue, |
| 655 | unsigned transp, struct fb_info *info) |
| 656 | { |
| 657 | u32 value; |
| 658 | |
| 659 | if (regno >= 256) |
| 660 | return 1; |
| 661 | |
| 662 | red >>= 8; |
| 663 | green >>= 8; |
| 664 | blue >>= 8; |
| 665 | |
| 666 | value = (blue << 16) | (green << 8) | red; |
| 667 | ((u32 *)info->pseudo_palette)[regno] = value; |
| 668 | |
| 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | /** |
| 673 | * ffb_blank - Optional function. Blanks the display. |
| 674 | * @blank_mode: the blank mode we want. |
| 675 | * @info: frame buffer structure that represents a single frame buffer |
| 676 | */ |
| 677 | static int |
| 678 | ffb_blank(int blank, struct fb_info *info) |
| 679 | { |
| 680 | struct ffb_par *par = (struct ffb_par *) info->par; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 681 | struct ffb_dac __iomem *dac = par->dac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | unsigned long flags; |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 683 | u32 val; |
| 684 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
| 686 | spin_lock_irqsave(&par->lock, flags); |
| 687 | |
| 688 | FFBWait(par); |
| 689 | |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 690 | upa_writel(FFB_DAC_TGEN, &dac->type); |
| 691 | val = upa_readl(&dac->value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | switch (blank) { |
| 693 | case FB_BLANK_UNBLANK: /* Unblanking */ |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 694 | val |= FFB_DAC_TGEN_VIDE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | par->flags &= ~FFB_FLAG_BLANKED; |
| 696 | break; |
| 697 | |
| 698 | case FB_BLANK_NORMAL: /* Normal blanking */ |
| 699 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ |
| 700 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ |
| 701 | case FB_BLANK_POWERDOWN: /* Poweroff */ |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 702 | val &= ~FFB_DAC_TGEN_VIDE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | par->flags |= FFB_FLAG_BLANKED; |
| 704 | break; |
| 705 | } |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 706 | upa_writel(FFB_DAC_TGEN, &dac->type); |
| 707 | upa_writel(val, &dac->value); |
| 708 | for (i = 0; i < 10; i++) { |
| 709 | upa_writel(FFB_DAC_TGEN, &dac->type); |
| 710 | upa_readl(&dac->value); |
| 711 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | |
| 713 | spin_unlock_irqrestore(&par->lock, flags); |
| 714 | |
| 715 | return 0; |
| 716 | } |
| 717 | |
| 718 | static struct sbus_mmap_map ffb_mmap_map[] = { |
| 719 | { |
| 720 | .voff = FFB_SFB8R_VOFF, |
| 721 | .poff = FFB_SFB8R_POFF, |
| 722 | .size = 0x0400000 |
| 723 | }, |
| 724 | { |
| 725 | .voff = FFB_SFB8G_VOFF, |
| 726 | .poff = FFB_SFB8G_POFF, |
| 727 | .size = 0x0400000 |
| 728 | }, |
| 729 | { |
| 730 | .voff = FFB_SFB8B_VOFF, |
| 731 | .poff = FFB_SFB8B_POFF, |
| 732 | .size = 0x0400000 |
| 733 | }, |
| 734 | { |
| 735 | .voff = FFB_SFB8X_VOFF, |
| 736 | .poff = FFB_SFB8X_POFF, |
| 737 | .size = 0x0400000 |
| 738 | }, |
| 739 | { |
| 740 | .voff = FFB_SFB32_VOFF, |
| 741 | .poff = FFB_SFB32_POFF, |
| 742 | .size = 0x1000000 |
| 743 | }, |
| 744 | { |
| 745 | .voff = FFB_SFB64_VOFF, |
| 746 | .poff = FFB_SFB64_POFF, |
| 747 | .size = 0x2000000 |
| 748 | }, |
| 749 | { |
| 750 | .voff = FFB_FBC_REGS_VOFF, |
| 751 | .poff = FFB_FBC_REGS_POFF, |
| 752 | .size = 0x0002000 |
| 753 | }, |
| 754 | { |
| 755 | .voff = FFB_BM_FBC_REGS_VOFF, |
| 756 | .poff = FFB_BM_FBC_REGS_POFF, |
| 757 | .size = 0x0002000 |
| 758 | }, |
| 759 | { |
| 760 | .voff = FFB_DFB8R_VOFF, |
| 761 | .poff = FFB_DFB8R_POFF, |
| 762 | .size = 0x0400000 |
| 763 | }, |
| 764 | { |
| 765 | .voff = FFB_DFB8G_VOFF, |
| 766 | .poff = FFB_DFB8G_POFF, |
| 767 | .size = 0x0400000 |
| 768 | }, |
| 769 | { |
| 770 | .voff = FFB_DFB8B_VOFF, |
| 771 | .poff = FFB_DFB8B_POFF, |
| 772 | .size = 0x0400000 |
| 773 | }, |
| 774 | { |
| 775 | .voff = FFB_DFB8X_VOFF, |
| 776 | .poff = FFB_DFB8X_POFF, |
| 777 | .size = 0x0400000 |
| 778 | }, |
| 779 | { |
| 780 | .voff = FFB_DFB24_VOFF, |
| 781 | .poff = FFB_DFB24_POFF, |
| 782 | .size = 0x1000000 |
| 783 | }, |
| 784 | { |
| 785 | .voff = FFB_DFB32_VOFF, |
| 786 | .poff = FFB_DFB32_POFF, |
| 787 | .size = 0x1000000 |
| 788 | }, |
| 789 | { |
| 790 | .voff = FFB_FBC_KREGS_VOFF, |
| 791 | .poff = FFB_FBC_KREGS_POFF, |
| 792 | .size = 0x0002000 |
| 793 | }, |
| 794 | { |
| 795 | .voff = FFB_DAC_VOFF, |
| 796 | .poff = FFB_DAC_POFF, |
| 797 | .size = 0x0002000 |
| 798 | }, |
| 799 | { |
| 800 | .voff = FFB_PROM_VOFF, |
| 801 | .poff = FFB_PROM_POFF, |
| 802 | .size = 0x0010000 |
| 803 | }, |
| 804 | { |
| 805 | .voff = FFB_EXP_VOFF, |
| 806 | .poff = FFB_EXP_POFF, |
| 807 | .size = 0x0002000 |
| 808 | }, |
| 809 | { |
| 810 | .voff = FFB_DFB422A_VOFF, |
| 811 | .poff = FFB_DFB422A_POFF, |
| 812 | .size = 0x0800000 |
| 813 | }, |
| 814 | { |
| 815 | .voff = FFB_DFB422AD_VOFF, |
| 816 | .poff = FFB_DFB422AD_POFF, |
| 817 | .size = 0x0800000 |
| 818 | }, |
| 819 | { |
| 820 | .voff = FFB_DFB24B_VOFF, |
| 821 | .poff = FFB_DFB24B_POFF, |
| 822 | .size = 0x1000000 |
| 823 | }, |
| 824 | { |
| 825 | .voff = FFB_DFB422B_VOFF, |
| 826 | .poff = FFB_DFB422B_POFF, |
| 827 | .size = 0x0800000 |
| 828 | }, |
| 829 | { |
| 830 | .voff = FFB_DFB422BD_VOFF, |
| 831 | .poff = FFB_DFB422BD_POFF, |
| 832 | .size = 0x0800000 |
| 833 | }, |
| 834 | { |
| 835 | .voff = FFB_SFB16Z_VOFF, |
| 836 | .poff = FFB_SFB16Z_POFF, |
| 837 | .size = 0x0800000 |
| 838 | }, |
| 839 | { |
| 840 | .voff = FFB_SFB8Z_VOFF, |
| 841 | .poff = FFB_SFB8Z_POFF, |
| 842 | .size = 0x0800000 |
| 843 | }, |
| 844 | { |
| 845 | .voff = FFB_SFB422_VOFF, |
| 846 | .poff = FFB_SFB422_POFF, |
| 847 | .size = 0x0800000 |
| 848 | }, |
| 849 | { |
| 850 | .voff = FFB_SFB422D_VOFF, |
| 851 | .poff = FFB_SFB422D_POFF, |
| 852 | .size = 0x0800000 |
| 853 | }, |
| 854 | { .size = 0 } |
| 855 | }; |
| 856 | |
Christoph Hellwig | 216d526 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 857 | static int ffb_mmap(struct fb_info *info, struct vm_area_struct *vma) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | { |
| 859 | struct ffb_par *par = (struct ffb_par *)info->par; |
| 860 | |
| 861 | return sbusfb_mmap_helper(ffb_mmap_map, |
| 862 | par->physbase, par->fbsize, |
| 863 | 0, vma); |
| 864 | } |
| 865 | |
Christoph Hellwig | 67a6680 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 866 | static int ffb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | { |
| 868 | struct ffb_par *par = (struct ffb_par *) info->par; |
| 869 | |
| 870 | return sbusfb_ioctl_helper(cmd, arg, info, |
| 871 | FBTYPE_CREATOR, 24, par->fbsize); |
| 872 | } |
| 873 | |
| 874 | /* |
| 875 | * Initialisation |
| 876 | */ |
| 877 | |
| 878 | static void |
| 879 | ffb_init_fix(struct fb_info *info) |
| 880 | { |
| 881 | struct ffb_par *par = (struct ffb_par *)info->par; |
| 882 | const char *ffb_type_name; |
| 883 | |
| 884 | if (!(par->flags & FFB_FLAG_AFB)) { |
| 885 | if ((par->board_type & 0x7) == 0x3) |
| 886 | ffb_type_name = "Creator 3D"; |
| 887 | else |
| 888 | ffb_type_name = "Creator"; |
| 889 | } else |
| 890 | ffb_type_name = "Elite 3D"; |
| 891 | |
| 892 | strlcpy(info->fix.id, ffb_type_name, sizeof(info->fix.id)); |
| 893 | |
| 894 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
| 895 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 896 | |
| 897 | /* Framebuffer length is the same regardless of resolution. */ |
| 898 | info->fix.line_length = 8192; |
| 899 | |
| 900 | info->fix.accel = FB_ACCEL_SUN_CREATOR; |
| 901 | } |
| 902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | struct all_info { |
| 904 | struct fb_info info; |
| 905 | struct ffb_par par; |
| 906 | u32 pseudo_palette[256]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 909 | static int ffb_init_one(struct of_device *op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 911 | struct device_node *dp = op->node; |
| 912 | struct ffb_fbc __iomem *fbc; |
| 913 | struct ffb_dac __iomem *dac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | struct all_info *all; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 915 | int err; |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 916 | u32 dac_pnum, dac_rev, dac_mrev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 918 | all = kzalloc(sizeof(*all), GFP_KERNEL); |
| 919 | if (!all) |
| 920 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | |
| 922 | spin_lock_init(&all->par.lock); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 923 | all->par.fbc = of_ioremap(&op->resource[2], 0, |
| 924 | sizeof(struct ffb_fbc), "ffb fbc"); |
| 925 | if (!all->par.fbc) { |
| 926 | kfree(all); |
| 927 | return -ENOMEM; |
| 928 | } |
| 929 | |
| 930 | all->par.dac = of_ioremap(&op->resource[1], 0, |
| 931 | sizeof(struct ffb_dac), "ffb dac"); |
| 932 | if (!all->par.dac) { |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 933 | of_iounmap(&op->resource[2], |
| 934 | all->par.fbc, sizeof(struct ffb_fbc)); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 935 | kfree(all); |
| 936 | return -ENOMEM; |
| 937 | } |
| 938 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | all->par.rop_cache = FFB_ROP_NEW; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 940 | all->par.physbase = op->resource[0].start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | |
| 942 | /* Don't mention copyarea, so SCROLL_REDRAW is always |
| 943 | * used. It is the fastest on this chip. |
| 944 | */ |
| 945 | all->info.flags = (FBINFO_DEFAULT | |
| 946 | /* FBINFO_HWACCEL_COPYAREA | */ |
| 947 | FBINFO_HWACCEL_FILLRECT | |
| 948 | FBINFO_HWACCEL_IMAGEBLIT); |
| 949 | all->info.fbops = &ffb_ops; |
| 950 | all->info.screen_base = (char *) all->par.physbase + FFB_DFB24_POFF; |
| 951 | all->info.par = &all->par; |
| 952 | all->info.pseudo_palette = all->pseudo_palette; |
| 953 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 954 | sbusfb_fill_var(&all->info.var, dp->node, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | all->par.fbsize = PAGE_ALIGN(all->info.var.xres * |
| 956 | all->info.var.yres * |
| 957 | 4); |
| 958 | ffb_fixup_var_rgb(&all->info.var); |
| 959 | |
| 960 | all->info.var.accel_flags = FB_ACCELF_TEXT; |
| 961 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 962 | if (!strcmp(dp->name, "SUNW,afb")) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | all->par.flags |= FFB_FLAG_AFB; |
| 964 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 965 | all->par.board_type = of_getintprop_default(dp, "board_type", 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | |
| 967 | fbc = all->par.fbc; |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 968 | if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_ERRORS) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | upa_writel(FFB_UCSR_ALL_ERRORS, &fbc->ucsr); |
| 970 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | dac = all->par.dac; |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 972 | upa_writel(FFB_DAC_DID, &dac->type); |
| 973 | dac_pnum = upa_readl(&dac->value); |
| 974 | dac_rev = (dac_pnum & FFB_DAC_DID_REV) >> FFB_DAC_DID_REV_SHIFT; |
| 975 | dac_pnum = (dac_pnum & FFB_DAC_DID_PNUM) >> FFB_DAC_DID_PNUM_SHIFT; |
| 976 | |
| 977 | upa_writel(FFB_DAC_UCTRL, &dac->type); |
| 978 | dac_mrev = upa_readl(&dac->value); |
| 979 | dac_mrev = (dac_mrev & FFB_DAC_UCTRL_MANREV) >> |
| 980 | FFB_DAC_UCTRL_MANREV_SHIFT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | |
| 982 | /* Elite3D has different DAC revision numbering, and no DAC revisions |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 983 | * have the reversed meaning of cursor enable. Otherwise, Pacifica 1 |
| 984 | * ramdacs with manufacturing revision less than 3 have inverted |
| 985 | * cursor logic. We identify Pacifica 1 as not Pacifica 2, the |
| 986 | * latter having a part number value of 0x236e. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | */ |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 988 | if ((all->par.flags & FFB_FLAG_AFB) || dac_pnum == 0x236e) { |
| 989 | all->par.flags &= ~FFB_FLAG_INVCURSOR; |
| 990 | } else { |
| 991 | if (dac_mrev < 3) |
| 992 | all->par.flags |= FFB_FLAG_INVCURSOR; |
| 993 | } |
| 994 | |
| 995 | ffb_switch_from_graph(&all->par); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | |
| 997 | /* Unblank it just to be sure. When there are multiple |
| 998 | * FFB/AFB cards in the system, or it is not the OBP |
| 999 | * chosen console, it will have video outputs off in |
| 1000 | * the DAC. |
| 1001 | */ |
| 1002 | ffb_blank(0, &all->info); |
| 1003 | |
| 1004 | if (fb_alloc_cmap(&all->info.cmap, 256, 0)) { |
| 1005 | printk(KERN_ERR "ffb: Could not allocate color map.\n"); |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1006 | of_iounmap(&op->resource[2], |
| 1007 | all->par.fbc, sizeof(struct ffb_fbc)); |
| 1008 | of_iounmap(&op->resource[1], |
| 1009 | all->par.dac, sizeof(struct ffb_dac)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | kfree(all); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1011 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | } |
| 1013 | |
| 1014 | ffb_init_fix(&all->info); |
| 1015 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1016 | err = register_framebuffer(&all->info); |
| 1017 | if (err < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | printk(KERN_ERR "ffb: Could not register framebuffer.\n"); |
| 1019 | fb_dealloc_cmap(&all->info.cmap); |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1020 | of_iounmap(&op->resource[2], |
| 1021 | all->par.fbc, sizeof(struct ffb_fbc)); |
| 1022 | of_iounmap(&op->resource[1], |
| 1023 | all->par.dac, sizeof(struct ffb_dac)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | kfree(all); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1025 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1028 | dev_set_drvdata(&op->dev, all); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 1030 | printk("%s: %s at %016lx, type %d, " |
| 1031 | "DAC pnum[%x] rev[%d] manuf_rev[%d]\n", |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1032 | dp->full_name, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | ((all->par.flags & FFB_FLAG_AFB) ? "AFB" : "FFB"), |
David S. Miller | 37db9a3 | 2007-03-26 23:18:09 -0700 | [diff] [blame] | 1034 | all->par.physbase, all->par.board_type, |
| 1035 | dac_pnum, dac_rev, dac_mrev); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1036 | |
| 1037 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | } |
| 1039 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1040 | static int __devinit ffb_probe(struct of_device *dev, const struct of_device_id *match) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1042 | struct of_device *op = to_of_device(&dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1044 | return ffb_init_one(op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | } |
| 1046 | |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1047 | static int __devexit ffb_remove(struct of_device *op) |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1048 | { |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1049 | struct all_info *all = dev_get_drvdata(&op->dev); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1050 | |
| 1051 | unregister_framebuffer(&all->info); |
| 1052 | fb_dealloc_cmap(&all->info.cmap); |
| 1053 | |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1054 | of_iounmap(&op->resource[2], all->par.fbc, sizeof(struct ffb_fbc)); |
| 1055 | of_iounmap(&op->resource[1], all->par.dac, sizeof(struct ffb_dac)); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1056 | |
| 1057 | kfree(all); |
| 1058 | |
David S. Miller | e3a411a3 | 2006-12-28 21:01:32 -0800 | [diff] [blame] | 1059 | dev_set_drvdata(&op->dev, NULL); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1060 | |
| 1061 | return 0; |
| 1062 | } |
| 1063 | |
| 1064 | static struct of_device_id ffb_match[] = { |
| 1065 | { |
| 1066 | .name = "SUNW,ffb", |
| 1067 | }, |
| 1068 | { |
| 1069 | .name = "SUNW,afb", |
| 1070 | }, |
| 1071 | {}, |
| 1072 | }; |
| 1073 | MODULE_DEVICE_TABLE(of, ffb_match); |
| 1074 | |
| 1075 | static struct of_platform_driver ffb_driver = { |
| 1076 | .name = "ffb", |
| 1077 | .match_table = ffb_match, |
| 1078 | .probe = ffb_probe, |
| 1079 | .remove = __devexit_p(ffb_remove), |
| 1080 | }; |
| 1081 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | int __init ffb_init(void) |
| 1083 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | if (fb_get_options("ffb", NULL)) |
| 1085 | return -ENODEV; |
| 1086 | |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1087 | return of_register_driver(&ffb_driver, &of_bus_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | } |
| 1089 | |
| 1090 | void __exit ffb_exit(void) |
| 1091 | { |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1092 | of_unregister_driver(&ffb_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | } |
| 1094 | |
| 1095 | module_init(ffb_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | module_exit(ffb_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | |
| 1098 | MODULE_DESCRIPTION("framebuffer driver for Creator/Elite3D chipsets"); |
David S. Miller | 50312ce | 2006-06-29 14:35:52 -0700 | [diff] [blame] | 1099 | MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); |
| 1100 | MODULE_VERSION("2.0"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | MODULE_LICENSE("GPL"); |