York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Freescale DIU Frame Buffer device driver |
| 5 | * |
| 6 | * Authors: Hongjun Chen <hong-jun.chen@freescale.com> |
| 7 | * Paul Widmer <paul.widmer@freescale.com> |
| 8 | * Srikanth Srinivasan <srikanth.srinivasan@freescale.com> |
| 9 | * York Sun <yorksun@freescale.com> |
| 10 | * |
| 11 | * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify it |
| 14 | * under the terms of the GNU General Public License as published by the |
| 15 | * Free Software Foundation; either version 2 of the License, or (at your |
| 16 | * option) any later version. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/string.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/fb.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/dma-mapping.h> |
| 28 | #include <linux/platform_device.h> |
| 29 | #include <linux/interrupt.h> |
| 30 | #include <linux/clk.h> |
| 31 | #include <linux/uaccess.h> |
| 32 | #include <linux/vmalloc.h> |
| 33 | |
| 34 | #include <linux/of_platform.h> |
| 35 | |
| 36 | #include <sysdev/fsl_soc.h> |
| 37 | #include "fsl-diu-fb.h" |
| 38 | |
| 39 | /* |
| 40 | * These parameters give default parameters |
| 41 | * for video output 1024x768, |
| 42 | * FIXME - change timing to proper amounts |
| 43 | * hsync 31.5kHz, vsync 60Hz |
| 44 | */ |
| 45 | static struct fb_videomode __devinitdata fsl_diu_default_mode = { |
| 46 | .refresh = 60, |
| 47 | .xres = 1024, |
| 48 | .yres = 768, |
| 49 | .pixclock = 15385, |
| 50 | .left_margin = 160, |
| 51 | .right_margin = 24, |
| 52 | .upper_margin = 29, |
| 53 | .lower_margin = 3, |
| 54 | .hsync_len = 136, |
| 55 | .vsync_len = 6, |
| 56 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 57 | .vmode = FB_VMODE_NONINTERLACED |
| 58 | }; |
| 59 | |
| 60 | static struct fb_videomode __devinitdata fsl_diu_mode_db[] = { |
| 61 | { |
| 62 | .name = "1024x768-60", |
| 63 | .refresh = 60, |
| 64 | .xres = 1024, |
| 65 | .yres = 768, |
| 66 | .pixclock = 15385, |
| 67 | .left_margin = 160, |
| 68 | .right_margin = 24, |
| 69 | .upper_margin = 29, |
| 70 | .lower_margin = 3, |
| 71 | .hsync_len = 136, |
| 72 | .vsync_len = 6, |
| 73 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 74 | .vmode = FB_VMODE_NONINTERLACED |
| 75 | }, |
| 76 | { |
| 77 | .name = "1024x768-70", |
| 78 | .refresh = 70, |
| 79 | .xres = 1024, |
| 80 | .yres = 768, |
| 81 | .pixclock = 16886, |
| 82 | .left_margin = 3, |
| 83 | .right_margin = 3, |
| 84 | .upper_margin = 2, |
| 85 | .lower_margin = 2, |
| 86 | .hsync_len = 40, |
| 87 | .vsync_len = 18, |
| 88 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 89 | .vmode = FB_VMODE_NONINTERLACED |
| 90 | }, |
| 91 | { |
| 92 | .name = "1024x768-75", |
| 93 | .refresh = 75, |
| 94 | .xres = 1024, |
| 95 | .yres = 768, |
| 96 | .pixclock = 15009, |
| 97 | .left_margin = 3, |
| 98 | .right_margin = 3, |
| 99 | .upper_margin = 2, |
| 100 | .lower_margin = 2, |
| 101 | .hsync_len = 80, |
| 102 | .vsync_len = 32, |
| 103 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 104 | .vmode = FB_VMODE_NONINTERLACED |
| 105 | }, |
| 106 | { |
| 107 | .name = "1280x1024-60", |
| 108 | .refresh = 60, |
| 109 | .xres = 1280, |
| 110 | .yres = 1024, |
| 111 | .pixclock = 9375, |
| 112 | .left_margin = 38, |
| 113 | .right_margin = 128, |
| 114 | .upper_margin = 2, |
| 115 | .lower_margin = 7, |
| 116 | .hsync_len = 216, |
| 117 | .vsync_len = 37, |
| 118 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 119 | .vmode = FB_VMODE_NONINTERLACED |
| 120 | }, |
| 121 | { |
| 122 | .name = "1280x1024-70", |
| 123 | .refresh = 70, |
| 124 | .xres = 1280, |
| 125 | .yres = 1024, |
| 126 | .pixclock = 9380, |
| 127 | .left_margin = 6, |
| 128 | .right_margin = 6, |
| 129 | .upper_margin = 4, |
| 130 | .lower_margin = 4, |
| 131 | .hsync_len = 60, |
| 132 | .vsync_len = 94, |
| 133 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 134 | .vmode = FB_VMODE_NONINTERLACED |
| 135 | }, |
| 136 | { |
| 137 | .name = "1280x1024-75", |
| 138 | .refresh = 75, |
| 139 | .xres = 1280, |
| 140 | .yres = 1024, |
| 141 | .pixclock = 9380, |
| 142 | .left_margin = 6, |
| 143 | .right_margin = 6, |
| 144 | .upper_margin = 4, |
| 145 | .lower_margin = 4, |
| 146 | .hsync_len = 60, |
| 147 | .vsync_len = 15, |
| 148 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 149 | .vmode = FB_VMODE_NONINTERLACED |
| 150 | }, |
| 151 | { |
| 152 | .name = "320x240", /* for AOI only */ |
| 153 | .refresh = 60, |
| 154 | .xres = 320, |
| 155 | .yres = 240, |
| 156 | .pixclock = 15385, |
| 157 | .left_margin = 0, |
| 158 | .right_margin = 0, |
| 159 | .upper_margin = 0, |
| 160 | .lower_margin = 0, |
| 161 | .hsync_len = 0, |
| 162 | .vsync_len = 0, |
| 163 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 164 | .vmode = FB_VMODE_NONINTERLACED |
| 165 | }, |
| 166 | { |
| 167 | .name = "1280x480-60", |
| 168 | .refresh = 60, |
| 169 | .xres = 1280, |
| 170 | .yres = 480, |
| 171 | .pixclock = 18939, |
| 172 | .left_margin = 353, |
| 173 | .right_margin = 47, |
| 174 | .upper_margin = 39, |
| 175 | .lower_margin = 4, |
| 176 | .hsync_len = 8, |
| 177 | .vsync_len = 2, |
| 178 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 179 | .vmode = FB_VMODE_NONINTERLACED |
| 180 | }, |
| 181 | }; |
| 182 | |
| 183 | static char *fb_mode = "1024x768-32@60"; |
| 184 | static unsigned long default_bpp = 32; |
| 185 | static int monitor_port; |
| 186 | |
| 187 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 188 | static u8 *coherence_data; |
| 189 | static size_t coherence_data_size; |
| 190 | static unsigned int d_cache_line_size; |
| 191 | #endif |
| 192 | |
| 193 | static DEFINE_SPINLOCK(diu_lock); |
| 194 | |
| 195 | struct fsl_diu_data { |
| 196 | struct fb_info *fsl_diu_info[FSL_AOI_NUM - 1]; |
| 197 | /*FSL_AOI_NUM has one dummy AOI */ |
| 198 | struct device_attribute dev_attr; |
| 199 | struct diu_ad *dummy_ad; |
| 200 | void *dummy_aoi_virt; |
| 201 | unsigned int irq; |
| 202 | int fb_enabled; |
| 203 | int monitor_port; |
| 204 | }; |
| 205 | |
| 206 | struct mfb_info { |
| 207 | int index; |
| 208 | int type; |
| 209 | char *id; |
| 210 | int registered; |
| 211 | int blank; |
| 212 | unsigned long pseudo_palette[16]; |
| 213 | struct diu_ad *ad; |
| 214 | int cursor_reset; |
| 215 | unsigned char g_alpha; |
| 216 | unsigned int count; |
| 217 | int x_aoi_d; /* aoi display x offset to physical screen */ |
| 218 | int y_aoi_d; /* aoi display y offset to physical screen */ |
| 219 | struct fsl_diu_data *parent; |
| 220 | }; |
| 221 | |
| 222 | |
| 223 | static struct mfb_info mfb_template[] = { |
| 224 | { /* AOI 0 for plane 0 */ |
| 225 | .index = 0, |
| 226 | .type = MFB_TYPE_OUTPUT, |
| 227 | .id = "Panel0", |
| 228 | .registered = 0, |
| 229 | .count = 0, |
| 230 | .x_aoi_d = 0, |
| 231 | .y_aoi_d = 0, |
| 232 | }, |
| 233 | { /* AOI 0 for plane 1 */ |
| 234 | .index = 1, |
| 235 | .type = MFB_TYPE_OUTPUT, |
| 236 | .id = "Panel1 AOI0", |
| 237 | .registered = 0, |
| 238 | .g_alpha = 0xff, |
| 239 | .count = 0, |
| 240 | .x_aoi_d = 0, |
| 241 | .y_aoi_d = 0, |
| 242 | }, |
| 243 | { /* AOI 1 for plane 1 */ |
| 244 | .index = 2, |
| 245 | .type = MFB_TYPE_OUTPUT, |
| 246 | .id = "Panel1 AOI1", |
| 247 | .registered = 0, |
| 248 | .g_alpha = 0xff, |
| 249 | .count = 0, |
| 250 | .x_aoi_d = 0, |
| 251 | .y_aoi_d = 480, |
| 252 | }, |
| 253 | { /* AOI 0 for plane 2 */ |
| 254 | .index = 3, |
| 255 | .type = MFB_TYPE_OUTPUT, |
| 256 | .id = "Panel2 AOI0", |
| 257 | .registered = 0, |
| 258 | .g_alpha = 0xff, |
| 259 | .count = 0, |
| 260 | .x_aoi_d = 640, |
| 261 | .y_aoi_d = 0, |
| 262 | }, |
| 263 | { /* AOI 1 for plane 2 */ |
| 264 | .index = 4, |
| 265 | .type = MFB_TYPE_OUTPUT, |
| 266 | .id = "Panel2 AOI1", |
| 267 | .registered = 0, |
| 268 | .g_alpha = 0xff, |
| 269 | .count = 0, |
| 270 | .x_aoi_d = 640, |
| 271 | .y_aoi_d = 480, |
| 272 | }, |
| 273 | }; |
| 274 | |
| 275 | static struct diu_hw dr = { |
| 276 | .mode = MFB_MODE1, |
| 277 | .reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock), |
| 278 | }; |
| 279 | |
| 280 | static struct diu_pool pool; |
| 281 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 282 | /** |
| 283 | * fsl_diu_alloc - allocate memory for the DIU |
| 284 | * @size: number of bytes to allocate |
| 285 | * @param: returned physical address of memory |
| 286 | * |
| 287 | * This function allocates a physically-contiguous block of memory. |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 288 | */ |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 289 | static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 290 | { |
| 291 | void *virt; |
| 292 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 293 | pr_debug("size=%zu\n", size); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 294 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 295 | virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 296 | if (virt) { |
| 297 | *phys = virt_to_phys(virt); |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 298 | pr_debug("virt=%p phys=%llx\n", virt, |
| 299 | (unsigned long long)*phys); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 300 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 301 | |
| 302 | return virt; |
| 303 | } |
| 304 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 305 | /** |
| 306 | * fsl_diu_free - release DIU memory |
| 307 | * @virt: pointer returned by fsl_diu_alloc() |
| 308 | * @size: number of bytes allocated by fsl_diu_alloc() |
| 309 | * |
| 310 | * This function releases memory allocated by fsl_diu_alloc(). |
| 311 | */ |
| 312 | static void fsl_diu_free(void *virt, size_t size) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 313 | { |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 314 | pr_debug("virt=%p size=%zu\n", virt, size); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 315 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 316 | if (virt && size) |
| 317 | free_pages_exact(virt, size); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | static int fsl_diu_enable_panel(struct fb_info *info) |
| 321 | { |
| 322 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
| 323 | struct diu *hw = dr.diu_reg; |
| 324 | struct diu_ad *ad = mfbi->ad; |
| 325 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 326 | int res = 0; |
| 327 | |
| 328 | pr_debug("enable_panel index %d\n", mfbi->index); |
| 329 | if (mfbi->type != MFB_TYPE_OFF) { |
| 330 | switch (mfbi->index) { |
| 331 | case 0: /* plane 0 */ |
| 332 | if (hw->desc[0] != ad->paddr) |
| 333 | out_be32(&hw->desc[0], ad->paddr); |
| 334 | break; |
| 335 | case 1: /* plane 1 AOI 0 */ |
| 336 | cmfbi = machine_data->fsl_diu_info[2]->par; |
| 337 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ |
| 338 | if (cmfbi->count > 0) /* AOI1 open */ |
| 339 | ad->next_ad = |
| 340 | cpu_to_le32(cmfbi->ad->paddr); |
| 341 | else |
| 342 | ad->next_ad = 0; |
| 343 | out_be32(&hw->desc[1], ad->paddr); |
| 344 | } |
| 345 | break; |
| 346 | case 3: /* plane 2 AOI 0 */ |
| 347 | cmfbi = machine_data->fsl_diu_info[4]->par; |
| 348 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ |
| 349 | if (cmfbi->count > 0) /* AOI1 open */ |
| 350 | ad->next_ad = |
| 351 | cpu_to_le32(cmfbi->ad->paddr); |
| 352 | else |
| 353 | ad->next_ad = 0; |
| 354 | out_be32(&hw->desc[2], ad->paddr); |
| 355 | } |
| 356 | break; |
| 357 | case 2: /* plane 1 AOI 1 */ |
| 358 | pmfbi = machine_data->fsl_diu_info[1]->par; |
| 359 | ad->next_ad = 0; |
| 360 | if (hw->desc[1] == machine_data->dummy_ad->paddr) |
| 361 | out_be32(&hw->desc[1], ad->paddr); |
| 362 | else /* AOI0 open */ |
| 363 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 364 | break; |
| 365 | case 4: /* plane 2 AOI 1 */ |
| 366 | pmfbi = machine_data->fsl_diu_info[3]->par; |
| 367 | ad->next_ad = 0; |
| 368 | if (hw->desc[2] == machine_data->dummy_ad->paddr) |
| 369 | out_be32(&hw->desc[2], ad->paddr); |
| 370 | else /* AOI0 was open */ |
| 371 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 372 | break; |
| 373 | default: |
| 374 | res = -EINVAL; |
| 375 | break; |
| 376 | } |
| 377 | } else |
| 378 | res = -EINVAL; |
| 379 | return res; |
| 380 | } |
| 381 | |
| 382 | static int fsl_diu_disable_panel(struct fb_info *info) |
| 383 | { |
| 384 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
| 385 | struct diu *hw = dr.diu_reg; |
| 386 | struct diu_ad *ad = mfbi->ad; |
| 387 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 388 | int res = 0; |
| 389 | |
| 390 | switch (mfbi->index) { |
| 391 | case 0: /* plane 0 */ |
| 392 | if (hw->desc[0] != machine_data->dummy_ad->paddr) |
| 393 | out_be32(&hw->desc[0], |
| 394 | machine_data->dummy_ad->paddr); |
| 395 | break; |
| 396 | case 1: /* plane 1 AOI 0 */ |
| 397 | cmfbi = machine_data->fsl_diu_info[2]->par; |
| 398 | if (cmfbi->count > 0) /* AOI1 is open */ |
| 399 | out_be32(&hw->desc[1], cmfbi->ad->paddr); |
| 400 | /* move AOI1 to the first */ |
| 401 | else /* AOI1 was closed */ |
| 402 | out_be32(&hw->desc[1], |
| 403 | machine_data->dummy_ad->paddr); |
| 404 | /* close AOI 0 */ |
| 405 | break; |
| 406 | case 3: /* plane 2 AOI 0 */ |
| 407 | cmfbi = machine_data->fsl_diu_info[4]->par; |
| 408 | if (cmfbi->count > 0) /* AOI1 is open */ |
| 409 | out_be32(&hw->desc[2], cmfbi->ad->paddr); |
| 410 | /* move AOI1 to the first */ |
| 411 | else /* AOI1 was closed */ |
| 412 | out_be32(&hw->desc[2], |
| 413 | machine_data->dummy_ad->paddr); |
| 414 | /* close AOI 0 */ |
| 415 | break; |
| 416 | case 2: /* plane 1 AOI 1 */ |
| 417 | pmfbi = machine_data->fsl_diu_info[1]->par; |
| 418 | if (hw->desc[1] != ad->paddr) { |
| 419 | /* AOI1 is not the first in the chain */ |
| 420 | if (pmfbi->count > 0) |
| 421 | /* AOI0 is open, must be the first */ |
| 422 | pmfbi->ad->next_ad = 0; |
| 423 | } else /* AOI1 is the first in the chain */ |
| 424 | out_be32(&hw->desc[1], machine_data->dummy_ad->paddr); |
| 425 | /* close AOI 1 */ |
| 426 | break; |
| 427 | case 4: /* plane 2 AOI 1 */ |
| 428 | pmfbi = machine_data->fsl_diu_info[3]->par; |
| 429 | if (hw->desc[2] != ad->paddr) { |
| 430 | /* AOI1 is not the first in the chain */ |
| 431 | if (pmfbi->count > 0) |
| 432 | /* AOI0 is open, must be the first */ |
| 433 | pmfbi->ad->next_ad = 0; |
| 434 | } else /* AOI1 is the first in the chain */ |
| 435 | out_be32(&hw->desc[2], machine_data->dummy_ad->paddr); |
| 436 | /* close AOI 1 */ |
| 437 | break; |
| 438 | default: |
| 439 | res = -EINVAL; |
| 440 | break; |
| 441 | } |
| 442 | |
| 443 | return res; |
| 444 | } |
| 445 | |
| 446 | static void enable_lcdc(struct fb_info *info) |
| 447 | { |
| 448 | struct diu *hw = dr.diu_reg; |
| 449 | struct mfb_info *mfbi = info->par; |
| 450 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 451 | |
| 452 | if (!machine_data->fb_enabled) { |
| 453 | out_be32(&hw->diu_mode, dr.mode); |
| 454 | machine_data->fb_enabled++; |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | static void disable_lcdc(struct fb_info *info) |
| 459 | { |
| 460 | struct diu *hw = dr.diu_reg; |
| 461 | struct mfb_info *mfbi = info->par; |
| 462 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 463 | |
| 464 | if (machine_data->fb_enabled) { |
| 465 | out_be32(&hw->diu_mode, 0); |
| 466 | machine_data->fb_enabled = 0; |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, |
| 471 | struct fb_info *info) |
| 472 | { |
| 473 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; |
| 474 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 475 | int available_height, upper_aoi_bottom, index = mfbi->index; |
| 476 | int lower_aoi_is_open, upper_aoi_is_open; |
| 477 | __u32 base_plane_width, base_plane_height, upper_aoi_height; |
| 478 | |
| 479 | base_plane_width = machine_data->fsl_diu_info[0]->var.xres; |
| 480 | base_plane_height = machine_data->fsl_diu_info[0]->var.yres; |
| 481 | |
York Sun | fdfaa4833 | 2008-08-15 00:40:29 -0700 | [diff] [blame] | 482 | if (mfbi->x_aoi_d < 0) |
| 483 | mfbi->x_aoi_d = 0; |
| 484 | if (mfbi->y_aoi_d < 0) |
| 485 | mfbi->y_aoi_d = 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 486 | switch (index) { |
| 487 | case 0: |
| 488 | if (mfbi->x_aoi_d != 0) |
| 489 | mfbi->x_aoi_d = 0; |
| 490 | if (mfbi->y_aoi_d != 0) |
| 491 | mfbi->y_aoi_d = 0; |
| 492 | break; |
| 493 | case 1: /* AOI 0 */ |
| 494 | case 3: |
| 495 | lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par; |
| 496 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; |
| 497 | if (var->xres > base_plane_width) |
| 498 | var->xres = base_plane_width; |
| 499 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 500 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 501 | |
| 502 | if (lower_aoi_is_open) |
| 503 | available_height = lower_aoi_mfbi->y_aoi_d; |
| 504 | else |
| 505 | available_height = base_plane_height; |
| 506 | if (var->yres > available_height) |
| 507 | var->yres = available_height; |
| 508 | if ((mfbi->y_aoi_d + var->yres) > available_height) |
| 509 | mfbi->y_aoi_d = available_height - var->yres; |
| 510 | break; |
| 511 | case 2: /* AOI 1 */ |
| 512 | case 4: |
| 513 | upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par; |
| 514 | upper_aoi_height = |
| 515 | machine_data->fsl_diu_info[index-1]->var.yres; |
| 516 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; |
| 517 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; |
| 518 | if (var->xres > base_plane_width) |
| 519 | var->xres = base_plane_width; |
| 520 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 521 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 522 | if (mfbi->y_aoi_d < 0) |
| 523 | mfbi->y_aoi_d = 0; |
| 524 | if (upper_aoi_is_open) { |
| 525 | if (mfbi->y_aoi_d < upper_aoi_bottom) |
| 526 | mfbi->y_aoi_d = upper_aoi_bottom; |
| 527 | available_height = base_plane_height |
| 528 | - upper_aoi_bottom; |
| 529 | } else |
| 530 | available_height = base_plane_height; |
| 531 | if (var->yres > available_height) |
| 532 | var->yres = available_height; |
| 533 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) |
| 534 | mfbi->y_aoi_d = base_plane_height - var->yres; |
| 535 | break; |
| 536 | } |
| 537 | } |
| 538 | /* |
| 539 | * Checks to see if the hardware supports the state requested by var passed |
| 540 | * in. This function does not alter the hardware state! If the var passed in |
| 541 | * is slightly off by what the hardware can support then we alter the var |
| 542 | * PASSED in to what we can do. If the hardware doesn't support mode change |
| 543 | * a -EINVAL will be returned by the upper layers. |
| 544 | */ |
| 545 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, |
| 546 | struct fb_info *info) |
| 547 | { |
| 548 | unsigned long htotal, vtotal; |
| 549 | |
| 550 | pr_debug("check_var xres: %d\n", var->xres); |
| 551 | pr_debug("check_var yres: %d\n", var->yres); |
| 552 | |
| 553 | if (var->xres_virtual < var->xres) |
| 554 | var->xres_virtual = var->xres; |
| 555 | if (var->yres_virtual < var->yres) |
| 556 | var->yres_virtual = var->yres; |
| 557 | |
| 558 | if (var->xoffset < 0) |
| 559 | var->xoffset = 0; |
| 560 | |
| 561 | if (var->yoffset < 0) |
| 562 | var->yoffset = 0; |
| 563 | |
| 564 | if (var->xoffset + info->var.xres > info->var.xres_virtual) |
| 565 | var->xoffset = info->var.xres_virtual - info->var.xres; |
| 566 | |
| 567 | if (var->yoffset + info->var.yres > info->var.yres_virtual) |
| 568 | var->yoffset = info->var.yres_virtual - info->var.yres; |
| 569 | |
| 570 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && |
| 571 | (var->bits_per_pixel != 16)) |
| 572 | var->bits_per_pixel = default_bpp; |
| 573 | |
| 574 | switch (var->bits_per_pixel) { |
| 575 | case 16: |
| 576 | var->red.length = 5; |
| 577 | var->red.offset = 11; |
| 578 | var->red.msb_right = 0; |
| 579 | |
| 580 | var->green.length = 6; |
| 581 | var->green.offset = 5; |
| 582 | var->green.msb_right = 0; |
| 583 | |
| 584 | var->blue.length = 5; |
| 585 | var->blue.offset = 0; |
| 586 | var->blue.msb_right = 0; |
| 587 | |
| 588 | var->transp.length = 0; |
| 589 | var->transp.offset = 0; |
| 590 | var->transp.msb_right = 0; |
| 591 | break; |
| 592 | case 24: |
| 593 | var->red.length = 8; |
| 594 | var->red.offset = 0; |
| 595 | var->red.msb_right = 0; |
| 596 | |
| 597 | var->green.length = 8; |
| 598 | var->green.offset = 8; |
| 599 | var->green.msb_right = 0; |
| 600 | |
| 601 | var->blue.length = 8; |
| 602 | var->blue.offset = 16; |
| 603 | var->blue.msb_right = 0; |
| 604 | |
| 605 | var->transp.length = 0; |
| 606 | var->transp.offset = 0; |
| 607 | var->transp.msb_right = 0; |
| 608 | break; |
| 609 | case 32: |
| 610 | var->red.length = 8; |
| 611 | var->red.offset = 16; |
| 612 | var->red.msb_right = 0; |
| 613 | |
| 614 | var->green.length = 8; |
| 615 | var->green.offset = 8; |
| 616 | var->green.msb_right = 0; |
| 617 | |
| 618 | var->blue.length = 8; |
| 619 | var->blue.offset = 0; |
| 620 | var->blue.msb_right = 0; |
| 621 | |
| 622 | var->transp.length = 8; |
| 623 | var->transp.offset = 24; |
| 624 | var->transp.msb_right = 0; |
| 625 | |
| 626 | break; |
| 627 | } |
| 628 | /* If the pixclock is below the minimum spec'd value then set to |
| 629 | * refresh rate for 60Hz since this is supported by most monitors. |
| 630 | * Refer to Documentation/fb/ for calculations. |
| 631 | */ |
| 632 | if ((var->pixclock < MIN_PIX_CLK) || (var->pixclock > MAX_PIX_CLK)) { |
| 633 | htotal = var->xres + var->right_margin + var->hsync_len + |
| 634 | var->left_margin; |
| 635 | vtotal = var->yres + var->lower_margin + var->vsync_len + |
| 636 | var->upper_margin; |
| 637 | var->pixclock = (vtotal * htotal * 6UL) / 100UL; |
| 638 | var->pixclock = KHZ2PICOS(var->pixclock); |
| 639 | pr_debug("pixclock set for 60Hz refresh = %u ps\n", |
| 640 | var->pixclock); |
| 641 | } |
| 642 | |
| 643 | var->height = -1; |
| 644 | var->width = -1; |
| 645 | var->grayscale = 0; |
| 646 | |
| 647 | /* Copy nonstd field to/from sync for fbset usage */ |
| 648 | var->sync |= var->nonstd; |
| 649 | var->nonstd |= var->sync; |
| 650 | |
| 651 | adjust_aoi_size_position(var, info); |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | static void set_fix(struct fb_info *info) |
| 656 | { |
| 657 | struct fb_fix_screeninfo *fix = &info->fix; |
| 658 | struct fb_var_screeninfo *var = &info->var; |
| 659 | struct mfb_info *mfbi = info->par; |
| 660 | |
| 661 | strncpy(fix->id, mfbi->id, strlen(mfbi->id)); |
| 662 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; |
| 663 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 664 | fix->accel = FB_ACCEL_NONE; |
| 665 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 666 | fix->xpanstep = 1; |
| 667 | fix->ypanstep = 1; |
| 668 | } |
| 669 | |
| 670 | static void update_lcdc(struct fb_info *info) |
| 671 | { |
| 672 | struct fb_var_screeninfo *var = &info->var; |
| 673 | struct mfb_info *mfbi = info->par; |
| 674 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 675 | struct diu *hw; |
| 676 | int i, j; |
| 677 | char __iomem *cursor_base, *gamma_table_base; |
| 678 | |
| 679 | u32 temp; |
| 680 | |
| 681 | hw = dr.diu_reg; |
| 682 | |
| 683 | if (mfbi->type == MFB_TYPE_OFF) { |
| 684 | fsl_diu_disable_panel(info); |
| 685 | return; |
| 686 | } |
| 687 | |
| 688 | diu_ops.set_monitor_port(machine_data->monitor_port); |
| 689 | gamma_table_base = pool.gamma.vaddr; |
| 690 | cursor_base = pool.cursor.vaddr; |
| 691 | /* Prep for DIU init - gamma table, cursor table */ |
| 692 | |
| 693 | for (i = 0; i <= 2; i++) |
| 694 | for (j = 0; j <= 255; j++) |
| 695 | *gamma_table_base++ = j; |
| 696 | |
| 697 | diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr); |
| 698 | |
| 699 | pr_debug("update-lcdc: HW - %p\n Disabling DIU\n", hw); |
| 700 | disable_lcdc(info); |
| 701 | |
| 702 | /* Program DIU registers */ |
| 703 | |
| 704 | out_be32(&hw->gamma, pool.gamma.paddr); |
| 705 | out_be32(&hw->cursor, pool.cursor.paddr); |
| 706 | |
| 707 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ |
| 708 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ |
| 709 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); |
| 710 | /* DISP SIZE */ |
| 711 | pr_debug("DIU xres: %d\n", var->xres); |
| 712 | pr_debug("DIU yres: %d\n", var->yres); |
| 713 | |
| 714 | out_be32(&hw->wb_size, 0); /* WB SIZE */ |
| 715 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ |
| 716 | |
| 717 | /* Horizontal and vertical configuration register */ |
| 718 | temp = var->left_margin << 22 | /* BP_H */ |
| 719 | var->hsync_len << 11 | /* PW_H */ |
| 720 | var->right_margin; /* FP_H */ |
| 721 | |
| 722 | out_be32(&hw->hsyn_para, temp); |
| 723 | |
| 724 | temp = var->upper_margin << 22 | /* BP_V */ |
| 725 | var->vsync_len << 11 | /* PW_V */ |
| 726 | var->lower_margin; /* FP_V */ |
| 727 | |
| 728 | out_be32(&hw->vsyn_para, temp); |
| 729 | |
| 730 | pr_debug("DIU right_margin - %d\n", var->right_margin); |
| 731 | pr_debug("DIU left_margin - %d\n", var->left_margin); |
| 732 | pr_debug("DIU hsync_len - %d\n", var->hsync_len); |
| 733 | pr_debug("DIU upper_margin - %d\n", var->upper_margin); |
| 734 | pr_debug("DIU lower_margin - %d\n", var->lower_margin); |
| 735 | pr_debug("DIU vsync_len - %d\n", var->vsync_len); |
| 736 | pr_debug("DIU HSYNC - 0x%08x\n", hw->hsyn_para); |
| 737 | pr_debug("DIU VSYNC - 0x%08x\n", hw->vsyn_para); |
| 738 | |
| 739 | diu_ops.set_pixel_clock(var->pixclock); |
| 740 | |
| 741 | out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ |
| 742 | out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ |
| 743 | out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ |
| 744 | out_be32(&hw->plut, 0x01F5F666); |
| 745 | |
| 746 | /* Enable the DIU */ |
| 747 | enable_lcdc(info); |
| 748 | } |
| 749 | |
| 750 | static int map_video_memory(struct fb_info *info) |
| 751 | { |
| 752 | phys_addr_t phys; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 753 | u32 smem_len = info->fix.line_length * info->var.yres_virtual; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 754 | |
| 755 | pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual); |
| 756 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); |
| 757 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 758 | pr_debug("MAP_VIDEO_MEMORY: smem_len = %u\n", smem_len); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 759 | |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 760 | info->screen_base = fsl_diu_alloc(smem_len, &phys); |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 761 | if (info->screen_base == NULL) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 762 | printk(KERN_ERR "Unable to allocate fb memory\n"); |
| 763 | return -ENOMEM; |
| 764 | } |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 765 | mutex_lock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 766 | info->fix.smem_start = (unsigned long) phys; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 767 | info->fix.smem_len = smem_len; |
| 768 | mutex_unlock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 769 | info->screen_size = info->fix.smem_len; |
| 770 | |
| 771 | pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n", |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 772 | info->fix.smem_start, info->fix.smem_len); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 773 | pr_debug("screen base %p\n", info->screen_base); |
| 774 | |
| 775 | return 0; |
| 776 | } |
| 777 | |
| 778 | static void unmap_video_memory(struct fb_info *info) |
| 779 | { |
| 780 | fsl_diu_free(info->screen_base, info->fix.smem_len); |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 781 | mutex_lock(&info->mm_lock); |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 782 | info->screen_base = NULL; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 783 | info->fix.smem_start = 0; |
| 784 | info->fix.smem_len = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 785 | mutex_unlock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | /* |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 789 | * Using the fb_var_screeninfo in fb_info we set the aoi of this |
| 790 | * particular framebuffer. It is a light version of fsl_diu_set_par. |
| 791 | */ |
| 792 | static int fsl_diu_set_aoi(struct fb_info *info) |
| 793 | { |
| 794 | struct fb_var_screeninfo *var = &info->var; |
| 795 | struct mfb_info *mfbi = info->par; |
| 796 | struct diu_ad *ad = mfbi->ad; |
| 797 | |
| 798 | /* AOI should not be greater than display size */ |
| 799 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
| 800 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 801 | return 0; |
| 802 | } |
| 803 | |
| 804 | /* |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 805 | * Using the fb_var_screeninfo in fb_info we set the resolution of this |
| 806 | * particular framebuffer. This function alters the fb_fix_screeninfo stored |
| 807 | * in fb_info. It does not alter var in fb_info since we are using that |
| 808 | * data. This means we depend on the data in var inside fb_info to be |
| 809 | * supported by the hardware. fsl_diu_check_var is always called before |
| 810 | * fsl_diu_set_par to ensure this. |
| 811 | */ |
| 812 | static int fsl_diu_set_par(struct fb_info *info) |
| 813 | { |
| 814 | unsigned long len; |
| 815 | struct fb_var_screeninfo *var = &info->var; |
| 816 | struct mfb_info *mfbi = info->par; |
| 817 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 818 | struct diu_ad *ad = mfbi->ad; |
| 819 | struct diu *hw; |
| 820 | |
| 821 | hw = dr.diu_reg; |
| 822 | |
| 823 | set_fix(info); |
| 824 | mfbi->cursor_reset = 1; |
| 825 | |
| 826 | len = info->var.yres_virtual * info->fix.line_length; |
| 827 | /* Alloc & dealloc each time resolution/bpp change */ |
| 828 | if (len != info->fix.smem_len) { |
| 829 | if (info->fix.smem_start) |
| 830 | unmap_video_memory(info); |
| 831 | pr_debug("SET PAR: smem_len = %d\n", info->fix.smem_len); |
| 832 | |
| 833 | /* Memory allocation for framebuffer */ |
| 834 | if (map_video_memory(info)) { |
| 835 | printk(KERN_ERR "Unable to allocate fb memory 1\n"); |
| 836 | return -ENOMEM; |
| 837 | } |
| 838 | } |
| 839 | |
| 840 | ad->pix_fmt = |
| 841 | diu_ops.get_pixel_format(var->bits_per_pixel, |
| 842 | machine_data->monitor_port); |
| 843 | ad->addr = cpu_to_le32(info->fix.smem_start); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 844 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
| 845 | var->xres_virtual) | mfbi->g_alpha; |
| 846 | /* AOI should not be greater than display size */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 847 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 848 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 849 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 850 | |
| 851 | /* Disable chroma keying function */ |
| 852 | ad->ckmax_r = 0; |
| 853 | ad->ckmax_g = 0; |
| 854 | ad->ckmax_b = 0; |
| 855 | |
| 856 | ad->ckmin_r = 255; |
| 857 | ad->ckmin_g = 255; |
| 858 | ad->ckmin_b = 255; |
| 859 | |
| 860 | if (mfbi->index == 0) |
| 861 | update_lcdc(info); |
| 862 | return 0; |
| 863 | } |
| 864 | |
| 865 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) |
| 866 | { |
| 867 | return ((val<<width) + 0x7FFF - val)>>16; |
| 868 | } |
| 869 | |
| 870 | /* |
| 871 | * Set a single color register. The values supplied have a 16 bit magnitude |
| 872 | * which needs to be scaled in this function for the hardware. Things to take |
| 873 | * into consideration are how many color registers, if any, are supported with |
| 874 | * the current color visual. With truecolor mode no color palettes are |
| 875 | * supported. Here a psuedo palette is created which we store the value in |
| 876 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited |
| 877 | * color palette. |
| 878 | */ |
| 879 | static int fsl_diu_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 880 | unsigned blue, unsigned transp, struct fb_info *info) |
| 881 | { |
| 882 | int ret = 1; |
| 883 | |
| 884 | /* |
| 885 | * If greyscale is true, then we convert the RGB value |
| 886 | * to greyscale no matter what visual we are using. |
| 887 | */ |
| 888 | if (info->var.grayscale) |
| 889 | red = green = blue = (19595 * red + 38470 * green + |
| 890 | 7471 * blue) >> 16; |
| 891 | switch (info->fix.visual) { |
| 892 | case FB_VISUAL_TRUECOLOR: |
| 893 | /* |
| 894 | * 16-bit True Colour. We encode the RGB value |
| 895 | * according to the RGB bitfield information. |
| 896 | */ |
| 897 | if (regno < 16) { |
| 898 | u32 *pal = info->pseudo_palette; |
| 899 | u32 v; |
| 900 | |
| 901 | red = CNVT_TOHW(red, info->var.red.length); |
| 902 | green = CNVT_TOHW(green, info->var.green.length); |
| 903 | blue = CNVT_TOHW(blue, info->var.blue.length); |
| 904 | transp = CNVT_TOHW(transp, info->var.transp.length); |
| 905 | |
| 906 | v = (red << info->var.red.offset) | |
| 907 | (green << info->var.green.offset) | |
| 908 | (blue << info->var.blue.offset) | |
| 909 | (transp << info->var.transp.offset); |
| 910 | |
| 911 | pal[regno] = v; |
| 912 | ret = 0; |
| 913 | } |
| 914 | break; |
| 915 | case FB_VISUAL_STATIC_PSEUDOCOLOR: |
| 916 | case FB_VISUAL_PSEUDOCOLOR: |
| 917 | break; |
| 918 | } |
| 919 | |
| 920 | return ret; |
| 921 | } |
| 922 | |
| 923 | /* |
| 924 | * Pan (or wrap, depending on the `vmode' field) the display using the |
| 925 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values |
| 926 | * don't fit, return -EINVAL. |
| 927 | */ |
| 928 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, |
| 929 | struct fb_info *info) |
| 930 | { |
| 931 | if ((info->var.xoffset == var->xoffset) && |
| 932 | (info->var.yoffset == var->yoffset)) |
| 933 | return 0; /* No change, do nothing */ |
| 934 | |
| 935 | if (var->xoffset < 0 || var->yoffset < 0 |
| 936 | || var->xoffset + info->var.xres > info->var.xres_virtual |
| 937 | || var->yoffset + info->var.yres > info->var.yres_virtual) |
| 938 | return -EINVAL; |
| 939 | |
| 940 | info->var.xoffset = var->xoffset; |
| 941 | info->var.yoffset = var->yoffset; |
| 942 | |
| 943 | if (var->vmode & FB_VMODE_YWRAP) |
| 944 | info->var.vmode |= FB_VMODE_YWRAP; |
| 945 | else |
| 946 | info->var.vmode &= ~FB_VMODE_YWRAP; |
| 947 | |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 948 | fsl_diu_set_aoi(info); |
| 949 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 950 | return 0; |
| 951 | } |
| 952 | |
| 953 | /* |
| 954 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking |
| 955 | * succeeded, != 0 if un-/blanking failed. |
| 956 | * blank_mode == 2: suspend vsync |
| 957 | * blank_mode == 3: suspend hsync |
| 958 | * blank_mode == 4: powerdown |
| 959 | */ |
| 960 | static int fsl_diu_blank(int blank_mode, struct fb_info *info) |
| 961 | { |
| 962 | struct mfb_info *mfbi = info->par; |
| 963 | |
| 964 | mfbi->blank = blank_mode; |
| 965 | |
| 966 | switch (blank_mode) { |
| 967 | case FB_BLANK_VSYNC_SUSPEND: |
| 968 | case FB_BLANK_HSYNC_SUSPEND: |
| 969 | /* FIXME: fixes to enable_panel and enable lcdc needed */ |
| 970 | case FB_BLANK_NORMAL: |
| 971 | /* fsl_diu_disable_panel(info);*/ |
| 972 | break; |
| 973 | case FB_BLANK_POWERDOWN: |
| 974 | /* disable_lcdc(info); */ |
| 975 | break; |
| 976 | case FB_BLANK_UNBLANK: |
| 977 | /* fsl_diu_enable_panel(info);*/ |
| 978 | break; |
| 979 | } |
| 980 | |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, |
| 985 | unsigned long arg) |
| 986 | { |
| 987 | struct mfb_info *mfbi = info->par; |
| 988 | struct diu_ad *ad = mfbi->ad; |
| 989 | struct mfb_chroma_key ck; |
| 990 | unsigned char global_alpha; |
| 991 | struct aoi_display_offset aoi_d; |
| 992 | __u32 pix_fmt; |
| 993 | void __user *buf = (void __user *)arg; |
| 994 | |
| 995 | if (!arg) |
| 996 | return -EINVAL; |
| 997 | switch (cmd) { |
| 998 | case MFB_SET_PIXFMT: |
| 999 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) |
| 1000 | return -EFAULT; |
| 1001 | ad->pix_fmt = pix_fmt; |
| 1002 | pr_debug("Set pixel format to 0x%08x\n", ad->pix_fmt); |
| 1003 | break; |
| 1004 | case MFB_GET_PIXFMT: |
| 1005 | pix_fmt = ad->pix_fmt; |
| 1006 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) |
| 1007 | return -EFAULT; |
| 1008 | pr_debug("get pixel format 0x%08x\n", ad->pix_fmt); |
| 1009 | break; |
| 1010 | case MFB_SET_AOID: |
| 1011 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) |
| 1012 | return -EFAULT; |
| 1013 | mfbi->x_aoi_d = aoi_d.x_aoi_d; |
| 1014 | mfbi->y_aoi_d = aoi_d.y_aoi_d; |
| 1015 | pr_debug("set AOI display offset of index %d to (%d,%d)\n", |
| 1016 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); |
| 1017 | fsl_diu_check_var(&info->var, info); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 1018 | fsl_diu_set_aoi(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1019 | break; |
| 1020 | case MFB_GET_AOID: |
| 1021 | aoi_d.x_aoi_d = mfbi->x_aoi_d; |
| 1022 | aoi_d.y_aoi_d = mfbi->y_aoi_d; |
| 1023 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) |
| 1024 | return -EFAULT; |
| 1025 | pr_debug("get AOI display offset of index %d (%d,%d)\n", |
| 1026 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); |
| 1027 | break; |
| 1028 | case MFB_GET_ALPHA: |
| 1029 | global_alpha = mfbi->g_alpha; |
| 1030 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) |
| 1031 | return -EFAULT; |
| 1032 | pr_debug("get global alpha of index %d\n", mfbi->index); |
| 1033 | break; |
| 1034 | case MFB_SET_ALPHA: |
| 1035 | /* set panel information */ |
| 1036 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) |
| 1037 | return -EFAULT; |
| 1038 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | |
| 1039 | (global_alpha & 0xff); |
| 1040 | mfbi->g_alpha = global_alpha; |
| 1041 | pr_debug("set global alpha for index %d\n", mfbi->index); |
| 1042 | break; |
| 1043 | case MFB_SET_CHROMA_KEY: |
| 1044 | /* set panel winformation */ |
| 1045 | if (copy_from_user(&ck, buf, sizeof(ck))) |
| 1046 | return -EFAULT; |
| 1047 | |
| 1048 | if (ck.enable && |
| 1049 | (ck.red_max < ck.red_min || |
| 1050 | ck.green_max < ck.green_min || |
| 1051 | ck.blue_max < ck.blue_min)) |
| 1052 | return -EINVAL; |
| 1053 | |
| 1054 | if (!ck.enable) { |
| 1055 | ad->ckmax_r = 0; |
| 1056 | ad->ckmax_g = 0; |
| 1057 | ad->ckmax_b = 0; |
| 1058 | ad->ckmin_r = 255; |
| 1059 | ad->ckmin_g = 255; |
| 1060 | ad->ckmin_b = 255; |
| 1061 | } else { |
| 1062 | ad->ckmax_r = ck.red_max; |
| 1063 | ad->ckmax_g = ck.green_max; |
| 1064 | ad->ckmax_b = ck.blue_max; |
| 1065 | ad->ckmin_r = ck.red_min; |
| 1066 | ad->ckmin_g = ck.green_min; |
| 1067 | ad->ckmin_b = ck.blue_min; |
| 1068 | } |
| 1069 | pr_debug("set chroma key\n"); |
| 1070 | break; |
| 1071 | case FBIOGET_GWINFO: |
| 1072 | if (mfbi->type == MFB_TYPE_OFF) |
| 1073 | return -ENODEV; |
| 1074 | /* get graphic window information */ |
| 1075 | if (copy_to_user(buf, ad, sizeof(*ad))) |
| 1076 | return -EFAULT; |
| 1077 | break; |
| 1078 | case FBIOGET_HWCINFO: |
| 1079 | pr_debug("FBIOGET_HWCINFO:0x%08x\n", FBIOGET_HWCINFO); |
| 1080 | break; |
| 1081 | case FBIOPUT_MODEINFO: |
| 1082 | pr_debug("FBIOPUT_MODEINFO:0x%08x\n", FBIOPUT_MODEINFO); |
| 1083 | break; |
| 1084 | case FBIOGET_DISPINFO: |
| 1085 | pr_debug("FBIOGET_DISPINFO:0x%08x\n", FBIOGET_DISPINFO); |
| 1086 | break; |
| 1087 | |
| 1088 | default: |
| 1089 | printk(KERN_ERR "Unknown ioctl command (0x%08X)\n", cmd); |
| 1090 | return -ENOIOCTLCMD; |
| 1091 | } |
| 1092 | |
| 1093 | return 0; |
| 1094 | } |
| 1095 | |
| 1096 | /* turn on fb if count == 1 |
| 1097 | */ |
| 1098 | static int fsl_diu_open(struct fb_info *info, int user) |
| 1099 | { |
| 1100 | struct mfb_info *mfbi = info->par; |
| 1101 | int res = 0; |
| 1102 | |
| 1103 | spin_lock(&diu_lock); |
| 1104 | mfbi->count++; |
| 1105 | if (mfbi->count == 1) { |
| 1106 | pr_debug("open plane index %d\n", mfbi->index); |
| 1107 | fsl_diu_check_var(&info->var, info); |
| 1108 | res = fsl_diu_set_par(info); |
| 1109 | if (res < 0) |
| 1110 | mfbi->count--; |
| 1111 | else { |
| 1112 | res = fsl_diu_enable_panel(info); |
| 1113 | if (res < 0) |
| 1114 | mfbi->count--; |
| 1115 | } |
| 1116 | } |
| 1117 | |
| 1118 | spin_unlock(&diu_lock); |
| 1119 | return res; |
| 1120 | } |
| 1121 | |
| 1122 | /* turn off fb if count == 0 |
| 1123 | */ |
| 1124 | static int fsl_diu_release(struct fb_info *info, int user) |
| 1125 | { |
| 1126 | struct mfb_info *mfbi = info->par; |
| 1127 | int res = 0; |
| 1128 | |
| 1129 | spin_lock(&diu_lock); |
| 1130 | mfbi->count--; |
| 1131 | if (mfbi->count == 0) { |
| 1132 | pr_debug("release plane index %d\n", mfbi->index); |
| 1133 | res = fsl_diu_disable_panel(info); |
| 1134 | if (res < 0) |
| 1135 | mfbi->count++; |
| 1136 | } |
| 1137 | spin_unlock(&diu_lock); |
| 1138 | return res; |
| 1139 | } |
| 1140 | |
| 1141 | static struct fb_ops fsl_diu_ops = { |
| 1142 | .owner = THIS_MODULE, |
| 1143 | .fb_check_var = fsl_diu_check_var, |
| 1144 | .fb_set_par = fsl_diu_set_par, |
| 1145 | .fb_setcolreg = fsl_diu_setcolreg, |
| 1146 | .fb_blank = fsl_diu_blank, |
| 1147 | .fb_pan_display = fsl_diu_pan_display, |
| 1148 | .fb_fillrect = cfb_fillrect, |
| 1149 | .fb_copyarea = cfb_copyarea, |
| 1150 | .fb_imageblit = cfb_imageblit, |
| 1151 | .fb_ioctl = fsl_diu_ioctl, |
| 1152 | .fb_open = fsl_diu_open, |
| 1153 | .fb_release = fsl_diu_release, |
| 1154 | }; |
| 1155 | |
| 1156 | static int init_fbinfo(struct fb_info *info) |
| 1157 | { |
| 1158 | struct mfb_info *mfbi = info->par; |
| 1159 | |
| 1160 | info->device = NULL; |
| 1161 | info->var.activate = FB_ACTIVATE_NOW; |
| 1162 | info->fbops = &fsl_diu_ops; |
| 1163 | info->flags = FBINFO_FLAG_DEFAULT; |
| 1164 | info->pseudo_palette = &mfbi->pseudo_palette; |
| 1165 | |
| 1166 | /* Allocate colormap */ |
| 1167 | fb_alloc_cmap(&info->cmap, 16, 0); |
| 1168 | return 0; |
| 1169 | } |
| 1170 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1171 | static int __devinit install_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1172 | { |
| 1173 | int rc; |
| 1174 | struct mfb_info *mfbi = info->par; |
| 1175 | const char *aoi_mode, *init_aoi_mode = "320x240"; |
| 1176 | |
| 1177 | if (init_fbinfo(info)) |
| 1178 | return -EINVAL; |
| 1179 | |
| 1180 | if (mfbi->index == 0) /* plane 0 */ |
| 1181 | aoi_mode = fb_mode; |
| 1182 | else |
| 1183 | aoi_mode = init_aoi_mode; |
| 1184 | pr_debug("mode used = %s\n", aoi_mode); |
| 1185 | rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db, |
| 1186 | ARRAY_SIZE(fsl_diu_mode_db), &fsl_diu_default_mode, default_bpp); |
| 1187 | |
| 1188 | switch (rc) { |
| 1189 | case 1: |
| 1190 | pr_debug("using mode specified in @mode\n"); |
| 1191 | break; |
| 1192 | case 2: |
| 1193 | pr_debug("using mode specified in @mode " |
| 1194 | "with ignored refresh rate\n"); |
| 1195 | break; |
| 1196 | case 3: |
| 1197 | pr_debug("using mode default mode\n"); |
| 1198 | break; |
| 1199 | case 4: |
| 1200 | pr_debug("using mode from list\n"); |
| 1201 | break; |
| 1202 | default: |
| 1203 | pr_debug("rc = %d\n", rc); |
| 1204 | pr_debug("failed to find mode\n"); |
| 1205 | return -EINVAL; |
| 1206 | break; |
| 1207 | } |
| 1208 | |
| 1209 | pr_debug("xres_virtual %d\n", info->var.xres_virtual); |
| 1210 | pr_debug("bits_per_pixel %d\n", info->var.bits_per_pixel); |
| 1211 | |
| 1212 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); |
| 1213 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); |
| 1214 | |
| 1215 | if (mfbi->type == MFB_TYPE_OFF) |
| 1216 | mfbi->blank = FB_BLANK_NORMAL; |
| 1217 | else |
| 1218 | mfbi->blank = FB_BLANK_UNBLANK; |
| 1219 | |
| 1220 | if (fsl_diu_check_var(&info->var, info)) { |
| 1221 | printk(KERN_ERR "fb_check_var failed"); |
| 1222 | fb_dealloc_cmap(&info->cmap); |
| 1223 | return -EINVAL; |
| 1224 | } |
| 1225 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1226 | if (register_framebuffer(info) < 0) { |
| 1227 | printk(KERN_ERR "register_framebuffer failed"); |
| 1228 | unmap_video_memory(info); |
| 1229 | fb_dealloc_cmap(&info->cmap); |
| 1230 | return -EINVAL; |
| 1231 | } |
| 1232 | |
| 1233 | mfbi->registered = 1; |
| 1234 | printk(KERN_INFO "fb%d: %s fb device registered successfully.\n", |
| 1235 | info->node, info->fix.id); |
| 1236 | |
| 1237 | return 0; |
| 1238 | } |
| 1239 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1240 | static void uninstall_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1241 | { |
| 1242 | struct mfb_info *mfbi = info->par; |
| 1243 | |
| 1244 | if (!mfbi->registered) |
| 1245 | return; |
| 1246 | |
| 1247 | unregister_framebuffer(info); |
| 1248 | unmap_video_memory(info); |
| 1249 | if (&info->cmap) |
| 1250 | fb_dealloc_cmap(&info->cmap); |
| 1251 | |
| 1252 | mfbi->registered = 0; |
| 1253 | } |
| 1254 | |
| 1255 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) |
| 1256 | { |
| 1257 | struct diu *hw = dr.diu_reg; |
| 1258 | unsigned int status = in_be32(&hw->int_status); |
| 1259 | |
| 1260 | if (status) { |
| 1261 | /* This is the workaround for underrun */ |
| 1262 | if (status & INT_UNDRUN) { |
| 1263 | out_be32(&hw->diu_mode, 0); |
| 1264 | pr_debug("Err: DIU occurs underrun!\n"); |
| 1265 | udelay(1); |
| 1266 | out_be32(&hw->diu_mode, 1); |
| 1267 | } |
| 1268 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1269 | else if (status & INT_VSYNC) { |
| 1270 | unsigned int i; |
| 1271 | for (i = 0; i < coherence_data_size; |
| 1272 | i += d_cache_line_size) |
| 1273 | __asm__ __volatile__ ( |
| 1274 | "dcbz 0, %[input]" |
| 1275 | ::[input]"r"(&coherence_data[i])); |
| 1276 | } |
| 1277 | #endif |
| 1278 | return IRQ_HANDLED; |
| 1279 | } |
| 1280 | return IRQ_NONE; |
| 1281 | } |
| 1282 | |
| 1283 | static int request_irq_local(int irq) |
| 1284 | { |
| 1285 | unsigned long status, ints; |
| 1286 | struct diu *hw; |
| 1287 | int ret; |
| 1288 | |
| 1289 | hw = dr.diu_reg; |
| 1290 | |
| 1291 | /* Read to clear the status */ |
| 1292 | status = in_be32(&hw->int_status); |
| 1293 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1294 | ret = request_irq(irq, fsl_diu_isr, 0, "diu", NULL); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1295 | if (ret) |
| 1296 | pr_info("Request diu IRQ failed.\n"); |
| 1297 | else { |
| 1298 | ints = INT_PARERR | INT_LS_BF_VS; |
| 1299 | #if !defined(CONFIG_NOT_COHERENT_CACHE) |
| 1300 | ints |= INT_VSYNC; |
| 1301 | #endif |
| 1302 | if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3) |
| 1303 | ints |= INT_VSYNC_WB; |
| 1304 | |
| 1305 | /* Read to clear the status */ |
| 1306 | status = in_be32(&hw->int_status); |
| 1307 | out_be32(&hw->int_mask, ints); |
| 1308 | } |
| 1309 | return ret; |
| 1310 | } |
| 1311 | |
| 1312 | static void free_irq_local(int irq) |
| 1313 | { |
| 1314 | struct diu *hw = dr.diu_reg; |
| 1315 | |
| 1316 | /* Disable all LCDC interrupt */ |
| 1317 | out_be32(&hw->int_mask, 0x1f); |
| 1318 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1319 | free_irq(irq, NULL); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1320 | } |
| 1321 | |
| 1322 | #ifdef CONFIG_PM |
| 1323 | /* |
| 1324 | * Power management hooks. Note that we won't be called from IRQ context, |
| 1325 | * unlike the blank functions above, so we may sleep. |
| 1326 | */ |
Jeff Mahoney | f969c56 | 2008-06-12 02:05:26 -0400 | [diff] [blame] | 1327 | static int fsl_diu_suspend(struct of_device *ofdev, pm_message_t state) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1328 | { |
| 1329 | struct fsl_diu_data *machine_data; |
| 1330 | |
Takashi Iwai | 48948a3 | 2008-07-08 18:41:17 +0200 | [diff] [blame] | 1331 | machine_data = dev_get_drvdata(&ofdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1332 | disable_lcdc(machine_data->fsl_diu_info[0]); |
| 1333 | |
| 1334 | return 0; |
| 1335 | } |
| 1336 | |
Jeff Mahoney | f969c56 | 2008-06-12 02:05:26 -0400 | [diff] [blame] | 1337 | static int fsl_diu_resume(struct of_device *ofdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1338 | { |
| 1339 | struct fsl_diu_data *machine_data; |
| 1340 | |
Takashi Iwai | 48948a3 | 2008-07-08 18:41:17 +0200 | [diff] [blame] | 1341 | machine_data = dev_get_drvdata(&ofdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1342 | enable_lcdc(machine_data->fsl_diu_info[0]); |
| 1343 | |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | #else |
| 1348 | #define fsl_diu_suspend NULL |
| 1349 | #define fsl_diu_resume NULL |
| 1350 | #endif /* CONFIG_PM */ |
| 1351 | |
| 1352 | /* Align to 64-bit(8-byte), 32-byte, etc. */ |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1353 | static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, |
| 1354 | u32 bytes_align) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1355 | { |
| 1356 | u32 offset, ssize; |
| 1357 | u32 mask; |
| 1358 | dma_addr_t paddr = 0; |
| 1359 | |
| 1360 | ssize = size + bytes_align; |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1361 | buf->vaddr = dma_alloc_coherent(dev, ssize, &paddr, GFP_DMA | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1362 | __GFP_ZERO); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1363 | if (!buf->vaddr) |
| 1364 | return -ENOMEM; |
| 1365 | |
| 1366 | buf->paddr = (__u32) paddr; |
| 1367 | |
| 1368 | mask = bytes_align - 1; |
| 1369 | offset = (u32)buf->paddr & mask; |
| 1370 | if (offset) { |
| 1371 | buf->offset = bytes_align - offset; |
| 1372 | buf->paddr = (u32)buf->paddr + offset; |
| 1373 | } else |
| 1374 | buf->offset = 0; |
| 1375 | return 0; |
| 1376 | } |
| 1377 | |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1378 | static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, |
| 1379 | u32 bytes_align) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1380 | { |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1381 | dma_free_coherent(dev, size + bytes_align, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1382 | buf->vaddr, (buf->paddr - buf->offset)); |
| 1383 | return; |
| 1384 | } |
| 1385 | |
| 1386 | static ssize_t store_monitor(struct device *device, |
| 1387 | struct device_attribute *attr, const char *buf, size_t count) |
| 1388 | { |
| 1389 | int old_monitor_port; |
| 1390 | unsigned long val; |
| 1391 | struct fsl_diu_data *machine_data = |
| 1392 | container_of(attr, struct fsl_diu_data, dev_attr); |
| 1393 | |
| 1394 | if (strict_strtoul(buf, 10, &val)) |
| 1395 | return 0; |
| 1396 | |
| 1397 | old_monitor_port = machine_data->monitor_port; |
| 1398 | machine_data->monitor_port = diu_ops.set_sysfs_monitor_port(val); |
| 1399 | |
| 1400 | if (old_monitor_port != machine_data->monitor_port) { |
| 1401 | /* All AOIs need adjust pixel format |
| 1402 | * fsl_diu_set_par only change the pixsel format here |
| 1403 | * unlikely to fail. */ |
| 1404 | fsl_diu_set_par(machine_data->fsl_diu_info[0]); |
| 1405 | fsl_diu_set_par(machine_data->fsl_diu_info[1]); |
| 1406 | fsl_diu_set_par(machine_data->fsl_diu_info[2]); |
| 1407 | fsl_diu_set_par(machine_data->fsl_diu_info[3]); |
| 1408 | fsl_diu_set_par(machine_data->fsl_diu_info[4]); |
| 1409 | } |
| 1410 | return count; |
| 1411 | } |
| 1412 | |
| 1413 | static ssize_t show_monitor(struct device *device, |
| 1414 | struct device_attribute *attr, char *buf) |
| 1415 | { |
| 1416 | struct fsl_diu_data *machine_data = |
| 1417 | container_of(attr, struct fsl_diu_data, dev_attr); |
| 1418 | return diu_ops.show_monitor_port(machine_data->monitor_port, buf); |
| 1419 | } |
| 1420 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1421 | static int __devinit fsl_diu_probe(struct of_device *ofdev, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1422 | const struct of_device_id *match) |
| 1423 | { |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 1424 | struct device_node *np = ofdev->dev.of_node; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1425 | struct mfb_info *mfbi; |
| 1426 | phys_addr_t dummy_ad_addr; |
| 1427 | int ret, i, error = 0; |
| 1428 | struct resource res; |
| 1429 | struct fsl_diu_data *machine_data; |
| 1430 | |
| 1431 | machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); |
| 1432 | if (!machine_data) |
| 1433 | return -ENOMEM; |
| 1434 | |
| 1435 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { |
| 1436 | machine_data->fsl_diu_info[i] = |
| 1437 | framebuffer_alloc(sizeof(struct mfb_info), &ofdev->dev); |
| 1438 | if (!machine_data->fsl_diu_info[i]) { |
| 1439 | dev_err(&ofdev->dev, "cannot allocate memory\n"); |
| 1440 | ret = -ENOMEM; |
| 1441 | goto error2; |
| 1442 | } |
| 1443 | mfbi = machine_data->fsl_diu_info[i]->par; |
| 1444 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); |
| 1445 | mfbi->parent = machine_data; |
| 1446 | } |
| 1447 | |
| 1448 | ret = of_address_to_resource(np, 0, &res); |
| 1449 | if (ret) { |
| 1450 | dev_err(&ofdev->dev, "could not obtain DIU address\n"); |
| 1451 | goto error; |
| 1452 | } |
| 1453 | if (!res.start) { |
| 1454 | dev_err(&ofdev->dev, "invalid DIU address\n"); |
| 1455 | goto error; |
| 1456 | } |
| 1457 | dev_dbg(&ofdev->dev, "%s, res.start: 0x%08x\n", __func__, res.start); |
| 1458 | |
| 1459 | dr.diu_reg = ioremap(res.start, sizeof(struct diu)); |
| 1460 | if (!dr.diu_reg) { |
| 1461 | dev_err(&ofdev->dev, "Err: can't map DIU registers!\n"); |
| 1462 | ret = -EFAULT; |
| 1463 | goto error2; |
| 1464 | } |
| 1465 | |
| 1466 | out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU anyway*/ |
| 1467 | |
| 1468 | /* Get the IRQ of the DIU */ |
| 1469 | machine_data->irq = irq_of_parse_and_map(np, 0); |
| 1470 | |
| 1471 | if (!machine_data->irq) { |
| 1472 | dev_err(&ofdev->dev, "could not get DIU IRQ\n"); |
| 1473 | ret = -EINVAL; |
| 1474 | goto error; |
| 1475 | } |
| 1476 | machine_data->monitor_port = monitor_port; |
| 1477 | |
| 1478 | /* Area descriptor memory pool aligns to 64-bit boundary */ |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1479 | if (allocate_buf(&ofdev->dev, &pool.ad, |
| 1480 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1481 | return -ENOMEM; |
| 1482 | |
| 1483 | /* Get memory for Gamma Table - 32-byte aligned memory */ |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1484 | if (allocate_buf(&ofdev->dev, &pool.gamma, 768, 32)) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1485 | ret = -ENOMEM; |
| 1486 | goto error; |
| 1487 | } |
| 1488 | |
| 1489 | /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1490 | if (allocate_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
| 1491 | 32)) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1492 | ret = -ENOMEM; |
| 1493 | goto error; |
| 1494 | } |
| 1495 | |
| 1496 | i = ARRAY_SIZE(machine_data->fsl_diu_info); |
| 1497 | machine_data->dummy_ad = (struct diu_ad *) |
| 1498 | ((u32)pool.ad.vaddr + pool.ad.offset) + i; |
| 1499 | machine_data->dummy_ad->paddr = pool.ad.paddr + |
| 1500 | i * sizeof(struct diu_ad); |
| 1501 | machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); |
| 1502 | if (!machine_data->dummy_aoi_virt) { |
| 1503 | ret = -ENOMEM; |
| 1504 | goto error; |
| 1505 | } |
| 1506 | machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); |
| 1507 | machine_data->dummy_ad->pix_fmt = 0x88882317; |
| 1508 | machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); |
| 1509 | machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); |
| 1510 | machine_data->dummy_ad->offset_xyi = 0; |
| 1511 | machine_data->dummy_ad->offset_xyd = 0; |
| 1512 | machine_data->dummy_ad->next_ad = 0; |
| 1513 | |
| 1514 | out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr); |
| 1515 | out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr); |
| 1516 | out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr); |
| 1517 | |
| 1518 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { |
| 1519 | machine_data->fsl_diu_info[i]->fix.smem_start = 0; |
| 1520 | mfbi = machine_data->fsl_diu_info[i]->par; |
| 1521 | mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr |
| 1522 | + pool.ad.offset) + i; |
| 1523 | mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad); |
| 1524 | ret = install_fb(machine_data->fsl_diu_info[i]); |
| 1525 | if (ret) { |
| 1526 | dev_err(&ofdev->dev, |
| 1527 | "Failed to register framebuffer %d\n", |
| 1528 | i); |
| 1529 | goto error; |
| 1530 | } |
| 1531 | } |
| 1532 | |
| 1533 | if (request_irq_local(machine_data->irq)) { |
| 1534 | dev_err(machine_data->fsl_diu_info[0]->dev, |
| 1535 | "could not request irq for diu."); |
| 1536 | goto error; |
| 1537 | } |
| 1538 | |
Wolfram Sang | 1276551 | 2010-04-06 14:34:52 -0700 | [diff] [blame] | 1539 | sysfs_attr_init(&machine_data->dev_attr.attr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1540 | machine_data->dev_attr.attr.name = "monitor"; |
| 1541 | machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; |
| 1542 | machine_data->dev_attr.show = show_monitor; |
| 1543 | machine_data->dev_attr.store = store_monitor; |
| 1544 | error = device_create_file(machine_data->fsl_diu_info[0]->dev, |
| 1545 | &machine_data->dev_attr); |
| 1546 | if (error) { |
| 1547 | dev_err(machine_data->fsl_diu_info[0]->dev, |
| 1548 | "could not create sysfs %s file\n", |
| 1549 | machine_data->dev_attr.attr.name); |
| 1550 | } |
| 1551 | |
| 1552 | dev_set_drvdata(&ofdev->dev, machine_data); |
| 1553 | return 0; |
| 1554 | |
| 1555 | error: |
| 1556 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); |
| 1557 | i > 0; i--) |
| 1558 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); |
| 1559 | if (pool.ad.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1560 | free_buf(&ofdev->dev, &pool.ad, |
| 1561 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1562 | if (pool.gamma.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1563 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1564 | if (pool.cursor.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1565 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
| 1566 | 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1567 | if (machine_data->dummy_aoi_virt) |
| 1568 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); |
| 1569 | iounmap(dr.diu_reg); |
| 1570 | |
| 1571 | error2: |
| 1572 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) |
| 1573 | if (machine_data->fsl_diu_info[i]) |
| 1574 | framebuffer_release(machine_data->fsl_diu_info[i]); |
| 1575 | kfree(machine_data); |
| 1576 | |
| 1577 | return ret; |
| 1578 | } |
| 1579 | |
| 1580 | |
| 1581 | static int fsl_diu_remove(struct of_device *ofdev) |
| 1582 | { |
| 1583 | struct fsl_diu_data *machine_data; |
| 1584 | int i; |
| 1585 | |
| 1586 | machine_data = dev_get_drvdata(&ofdev->dev); |
| 1587 | disable_lcdc(machine_data->fsl_diu_info[0]); |
| 1588 | free_irq_local(machine_data->irq); |
| 1589 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--) |
| 1590 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); |
| 1591 | if (pool.ad.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1592 | free_buf(&ofdev->dev, &pool.ad, |
| 1593 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1594 | if (pool.gamma.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1595 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1596 | if (pool.cursor.vaddr) |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1597 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
| 1598 | 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1599 | if (machine_data->dummy_aoi_virt) |
| 1600 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); |
| 1601 | iounmap(dr.diu_reg); |
| 1602 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) |
| 1603 | if (machine_data->fsl_diu_info[i]) |
| 1604 | framebuffer_release(machine_data->fsl_diu_info[i]); |
| 1605 | kfree(machine_data); |
| 1606 | |
| 1607 | return 0; |
| 1608 | } |
| 1609 | |
| 1610 | #ifndef MODULE |
| 1611 | static int __init fsl_diu_setup(char *options) |
| 1612 | { |
| 1613 | char *opt; |
| 1614 | unsigned long val; |
| 1615 | |
| 1616 | if (!options || !*options) |
| 1617 | return 0; |
| 1618 | |
| 1619 | while ((opt = strsep(&options, ",")) != NULL) { |
| 1620 | if (!*opt) |
| 1621 | continue; |
| 1622 | if (!strncmp(opt, "monitor=", 8)) { |
| 1623 | if (!strict_strtoul(opt + 8, 10, &val) && (val <= 2)) |
| 1624 | monitor_port = val; |
| 1625 | } else if (!strncmp(opt, "bpp=", 4)) { |
| 1626 | if (!strict_strtoul(opt + 4, 10, &val)) |
| 1627 | default_bpp = val; |
| 1628 | } else |
| 1629 | fb_mode = opt; |
| 1630 | } |
| 1631 | |
| 1632 | return 0; |
| 1633 | } |
| 1634 | #endif |
| 1635 | |
| 1636 | static struct of_device_id fsl_diu_match[] = { |
Anatolij Gustschin | d24720a | 2010-02-17 07:33:22 -0700 | [diff] [blame] | 1637 | #ifdef CONFIG_PPC_MPC512x |
| 1638 | { |
| 1639 | .compatible = "fsl,mpc5121-diu", |
| 1640 | }, |
| 1641 | #endif |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1642 | { |
| 1643 | .compatible = "fsl,diu", |
| 1644 | }, |
| 1645 | {} |
| 1646 | }; |
| 1647 | MODULE_DEVICE_TABLE(of, fsl_diu_match); |
| 1648 | |
| 1649 | static struct of_platform_driver fsl_diu_driver = { |
| 1650 | .owner = THIS_MODULE, |
| 1651 | .name = "fsl_diu", |
| 1652 | .match_table = fsl_diu_match, |
| 1653 | .probe = fsl_diu_probe, |
| 1654 | .remove = fsl_diu_remove, |
| 1655 | .suspend = fsl_diu_suspend, |
| 1656 | .resume = fsl_diu_resume, |
| 1657 | }; |
| 1658 | |
| 1659 | static int __init fsl_diu_init(void) |
| 1660 | { |
| 1661 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1662 | struct device_node *np; |
| 1663 | const u32 *prop; |
| 1664 | #endif |
| 1665 | int ret; |
| 1666 | #ifndef MODULE |
| 1667 | char *option; |
| 1668 | |
| 1669 | /* |
| 1670 | * For kernel boot options (in 'video=xxxfb:<options>' format) |
| 1671 | */ |
| 1672 | if (fb_get_options("fslfb", &option)) |
| 1673 | return -ENODEV; |
| 1674 | fsl_diu_setup(option); |
| 1675 | #endif |
| 1676 | printk(KERN_INFO "Freescale DIU driver\n"); |
| 1677 | |
| 1678 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1679 | np = of_find_node_by_type(NULL, "cpu"); |
| 1680 | if (!np) { |
| 1681 | printk(KERN_ERR "Err: can't find device node 'cpu'\n"); |
| 1682 | return -ENODEV; |
| 1683 | } |
| 1684 | |
| 1685 | prop = of_get_property(np, "d-cache-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1686 | if (prop == NULL) { |
| 1687 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1688 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1689 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1690 | |
| 1691 | /* Freescale PLRU requires 13/8 times the cache size to do a proper |
| 1692 | displacement flush |
| 1693 | */ |
| 1694 | coherence_data_size = *prop * 13; |
| 1695 | coherence_data_size /= 8; |
| 1696 | |
| 1697 | prop = of_get_property(np, "d-cache-line-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1698 | if (prop == NULL) { |
| 1699 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1700 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1701 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1702 | d_cache_line_size = *prop; |
| 1703 | |
| 1704 | of_node_put(np); |
| 1705 | coherence_data = vmalloc(coherence_data_size); |
| 1706 | if (!coherence_data) |
| 1707 | return -ENOMEM; |
| 1708 | #endif |
| 1709 | ret = of_register_platform_driver(&fsl_diu_driver); |
| 1710 | if (ret) { |
| 1711 | printk(KERN_ERR |
| 1712 | "fsl-diu: failed to register platform driver\n"); |
| 1713 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1714 | vfree(coherence_data); |
| 1715 | #endif |
| 1716 | iounmap(dr.diu_reg); |
| 1717 | } |
| 1718 | return ret; |
| 1719 | } |
| 1720 | |
| 1721 | static void __exit fsl_diu_exit(void) |
| 1722 | { |
| 1723 | of_unregister_platform_driver(&fsl_diu_driver); |
| 1724 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1725 | vfree(coherence_data); |
| 1726 | #endif |
| 1727 | } |
| 1728 | |
| 1729 | module_init(fsl_diu_init); |
| 1730 | module_exit(fsl_diu_exit); |
| 1731 | |
| 1732 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); |
| 1733 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); |
| 1734 | MODULE_LICENSE("GPL"); |
| 1735 | |
| 1736 | module_param_named(mode, fb_mode, charp, 0); |
| 1737 | MODULE_PARM_DESC(mode, |
| 1738 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); |
| 1739 | module_param_named(bpp, default_bpp, ulong, 0); |
| 1740 | MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified mode"); |
| 1741 | module_param_named(monitor, monitor_port, int, 0); |
| 1742 | MODULE_PARM_DESC(monitor, |
| 1743 | "Specify the monitor port (0, 1 or 2) if supported by the platform"); |
| 1744 | |