Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Framebuffer driver for TI OMAP boards |
| 3 | * |
| 4 | * Copyright (C) 2004 Nokia Corporation |
| 5 | * Author: Imre Deak <imre.deak@nokia.com> |
| 6 | * |
| 7 | * Acknowledgements: |
| 8 | * Alex McMains <aam@ridgerun.com> - Original driver |
| 9 | * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements |
| 10 | * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API |
| 11 | * Texas Instruments - H3 support |
| 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 | * This program is distributed in the hope that it will be useful, but |
| 19 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 21 | * General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License along |
| 24 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 25 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 26 | */ |
| 27 | #include <linux/platform_device.h> |
Andrea Righi | 27ac792 | 2008-07-23 21:28:13 -0700 | [diff] [blame] | 28 | #include <linux/mm.h> |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 29 | #include <linux/uaccess.h> |
| 30 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 31 | #include <mach/dma.h> |
| 32 | #include <mach/omapfb.h> |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 33 | |
Russell King | 7c8ad98 | 2008-09-05 15:13:24 +0100 | [diff] [blame] | 34 | #include "lcdc.h" |
| 35 | #include "dispc.h" |
| 36 | |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 37 | #define MODULE_NAME "omapfb" |
| 38 | |
| 39 | static unsigned int def_accel; |
| 40 | static unsigned long def_vram[OMAPFB_PLANE_NUM]; |
Russell King | 7c8ad98 | 2008-09-05 15:13:24 +0100 | [diff] [blame] | 41 | static unsigned int def_vram_cnt; |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 42 | static unsigned long def_vxres; |
| 43 | static unsigned long def_vyres; |
| 44 | static unsigned int def_rotate; |
| 45 | static unsigned int def_mirror; |
| 46 | |
| 47 | #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE |
| 48 | static int manual_update = 1; |
| 49 | #else |
| 50 | static int manual_update; |
| 51 | #endif |
| 52 | |
| 53 | static struct platform_device *fbdev_pdev; |
| 54 | static struct lcd_panel *fbdev_panel; |
| 55 | static struct omapfb_device *omapfb_dev; |
| 56 | |
| 57 | struct caps_table_struct { |
| 58 | unsigned long flag; |
| 59 | const char *name; |
| 60 | }; |
| 61 | |
| 62 | static struct caps_table_struct ctrl_caps[] = { |
| 63 | { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" }, |
| 64 | { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" }, |
| 65 | { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" }, |
| 66 | { OMAPFB_CAPS_PLANE_SCALE, "scale plane" }, |
| 67 | { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" }, |
| 68 | { OMAPFB_CAPS_WINDOW_SCALE, "scale window" }, |
| 69 | { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" }, |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 70 | { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" }, |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 71 | { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" }, |
| 72 | }; |
| 73 | |
| 74 | static struct caps_table_struct color_caps[] = { |
| 75 | { 1 << OMAPFB_COLOR_RGB565, "RGB565", }, |
| 76 | { 1 << OMAPFB_COLOR_YUV422, "YUV422", }, |
| 77 | { 1 << OMAPFB_COLOR_YUV420, "YUV420", }, |
| 78 | { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", }, |
| 79 | { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", }, |
| 80 | { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", }, |
| 81 | { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", }, |
| 82 | { 1 << OMAPFB_COLOR_RGB444, "RGB444", }, |
| 83 | { 1 << OMAPFB_COLOR_YUY422, "YUY422", }, |
| 84 | }; |
| 85 | |
| 86 | /* |
| 87 | * --------------------------------------------------------------------------- |
| 88 | * LCD panel |
| 89 | * --------------------------------------------------------------------------- |
| 90 | */ |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 91 | extern struct lcd_ctrl hwa742_ctrl; |
| 92 | extern struct lcd_ctrl blizzard_ctrl; |
| 93 | |
Russell King | 7c8ad98 | 2008-09-05 15:13:24 +0100 | [diff] [blame] | 94 | static const struct lcd_ctrl *ctrls[] = { |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 95 | #ifdef CONFIG_ARCH_OMAP1 |
| 96 | &omap1_int_ctrl, |
| 97 | #else |
| 98 | &omap2_int_ctrl, |
| 99 | #endif |
| 100 | |
| 101 | #ifdef CONFIG_FB_OMAP_LCDC_HWA742 |
| 102 | &hwa742_ctrl, |
| 103 | #endif |
| 104 | #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD |
| 105 | &blizzard_ctrl, |
| 106 | #endif |
| 107 | }; |
| 108 | |
| 109 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL |
| 110 | #ifdef CONFIG_ARCH_OMAP1 |
| 111 | extern struct lcd_ctrl_extif omap1_ext_if; |
| 112 | #else |
| 113 | extern struct lcd_ctrl_extif omap2_ext_if; |
| 114 | #endif |
| 115 | #endif |
| 116 | |
| 117 | static void omapfb_rqueue_lock(struct omapfb_device *fbdev) |
| 118 | { |
| 119 | mutex_lock(&fbdev->rqueue_mutex); |
| 120 | } |
| 121 | |
| 122 | static void omapfb_rqueue_unlock(struct omapfb_device *fbdev) |
| 123 | { |
| 124 | mutex_unlock(&fbdev->rqueue_mutex); |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * --------------------------------------------------------------------------- |
| 129 | * LCD controller and LCD DMA |
| 130 | * --------------------------------------------------------------------------- |
| 131 | */ |
| 132 | /* Lookup table to map elem size to elem type. */ |
| 133 | static const int dma_elem_type[] = { |
| 134 | 0, |
| 135 | OMAP_DMA_DATA_TYPE_S8, |
| 136 | OMAP_DMA_DATA_TYPE_S16, |
| 137 | 0, |
| 138 | OMAP_DMA_DATA_TYPE_S32, |
| 139 | }; |
| 140 | |
| 141 | /* |
| 142 | * Allocate resources needed for LCD controller and LCD DMA operations. Video |
| 143 | * memory is allocated from system memory according to the virtual display |
| 144 | * size, except if a bigger memory size is specified explicitly as a kernel |
| 145 | * parameter. |
| 146 | */ |
| 147 | static int ctrl_init(struct omapfb_device *fbdev) |
| 148 | { |
| 149 | int r; |
| 150 | int i; |
| 151 | |
| 152 | /* kernel/module vram parameters override boot tags/board config */ |
| 153 | if (def_vram_cnt) { |
| 154 | for (i = 0; i < def_vram_cnt; i++) |
| 155 | fbdev->mem_desc.region[i].size = |
| 156 | PAGE_ALIGN(def_vram[i]); |
| 157 | fbdev->mem_desc.region_cnt = i; |
| 158 | } else { |
| 159 | struct omapfb_platform_data *conf; |
| 160 | |
| 161 | conf = fbdev->dev->platform_data; |
| 162 | fbdev->mem_desc = conf->mem_desc; |
| 163 | } |
| 164 | |
| 165 | if (!fbdev->mem_desc.region_cnt) { |
| 166 | struct lcd_panel *panel = fbdev->panel; |
| 167 | int def_size; |
| 168 | int bpp = panel->bpp; |
| 169 | |
| 170 | /* 12 bpp is packed in 16 bits */ |
| 171 | if (bpp == 12) |
| 172 | bpp = 16; |
| 173 | def_size = def_vxres * def_vyres * bpp / 8; |
| 174 | fbdev->mem_desc.region_cnt = 1; |
| 175 | fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size); |
| 176 | } |
| 177 | r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc); |
| 178 | if (r < 0) { |
| 179 | dev_err(fbdev->dev, "controller initialization failed (%d)\n", |
| 180 | r); |
| 181 | return r; |
| 182 | } |
| 183 | |
| 184 | #ifdef DEBUG |
| 185 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { |
| 186 | dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n", |
| 187 | i, |
| 188 | fbdev->mem_desc.region[i].paddr, |
| 189 | fbdev->mem_desc.region[i].vaddr, |
| 190 | fbdev->mem_desc.region[i].size); |
| 191 | } |
| 192 | #endif |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | static void ctrl_cleanup(struct omapfb_device *fbdev) |
| 197 | { |
| 198 | fbdev->ctrl->cleanup(); |
| 199 | } |
| 200 | |
| 201 | /* Must be called with fbdev->rqueue_mutex held. */ |
| 202 | static int ctrl_change_mode(struct fb_info *fbi) |
| 203 | { |
| 204 | int r; |
| 205 | unsigned long offset; |
| 206 | struct omapfb_plane_struct *plane = fbi->par; |
| 207 | struct omapfb_device *fbdev = plane->fbdev; |
| 208 | struct fb_var_screeninfo *var = &fbi->var; |
| 209 | |
| 210 | offset = var->yoffset * fbi->fix.line_length + |
| 211 | var->xoffset * var->bits_per_pixel / 8; |
| 212 | |
| 213 | if (fbdev->ctrl->sync) |
| 214 | fbdev->ctrl->sync(); |
| 215 | r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out, |
| 216 | offset, var->xres_virtual, |
| 217 | plane->info.pos_x, plane->info.pos_y, |
| 218 | var->xres, var->yres, plane->color_mode); |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 219 | if (r < 0) |
| 220 | return r; |
| 221 | |
| 222 | if (fbdev->ctrl->set_rotate != NULL) { |
| 223 | r = fbdev->ctrl->set_rotate(var->rotate); |
| 224 | if (r < 0) |
| 225 | return r; |
| 226 | } |
| 227 | |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 228 | if (fbdev->ctrl->set_scale != NULL) |
| 229 | r = fbdev->ctrl->set_scale(plane->idx, |
| 230 | var->xres, var->yres, |
| 231 | plane->info.out_width, |
| 232 | plane->info.out_height); |
| 233 | |
| 234 | return r; |
| 235 | } |
| 236 | |
| 237 | /* |
| 238 | * --------------------------------------------------------------------------- |
| 239 | * fbdev framework callbacks and the ioctl interface |
| 240 | * --------------------------------------------------------------------------- |
| 241 | */ |
| 242 | /* Called each time the omapfb device is opened */ |
| 243 | static int omapfb_open(struct fb_info *info, int user) |
| 244 | { |
| 245 | return 0; |
| 246 | } |
| 247 | |
| 248 | static void omapfb_sync(struct fb_info *info); |
| 249 | |
| 250 | /* Called when the omapfb device is closed. We make sure that any pending |
| 251 | * gfx DMA operations are ended, before we return. */ |
| 252 | static int omapfb_release(struct fb_info *info, int user) |
| 253 | { |
| 254 | omapfb_sync(info); |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | /* Store a single color palette entry into a pseudo palette or the hardware |
| 259 | * palette if one is available. For now we support only 16bpp and thus store |
| 260 | * the entry only to the pseudo palette. |
| 261 | */ |
| 262 | static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, |
| 263 | u_int blue, u_int transp, int update_hw_pal) |
| 264 | { |
| 265 | struct omapfb_plane_struct *plane = info->par; |
| 266 | struct omapfb_device *fbdev = plane->fbdev; |
| 267 | struct fb_var_screeninfo *var = &info->var; |
| 268 | int r = 0; |
| 269 | |
| 270 | switch (plane->color_mode) { |
| 271 | case OMAPFB_COLOR_YUV422: |
| 272 | case OMAPFB_COLOR_YUV420: |
| 273 | case OMAPFB_COLOR_YUY422: |
| 274 | r = -EINVAL; |
| 275 | break; |
| 276 | case OMAPFB_COLOR_CLUT_8BPP: |
| 277 | case OMAPFB_COLOR_CLUT_4BPP: |
| 278 | case OMAPFB_COLOR_CLUT_2BPP: |
| 279 | case OMAPFB_COLOR_CLUT_1BPP: |
| 280 | if (fbdev->ctrl->setcolreg) |
| 281 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, |
| 282 | transp, update_hw_pal); |
| 283 | /* Fallthrough */ |
| 284 | case OMAPFB_COLOR_RGB565: |
| 285 | case OMAPFB_COLOR_RGB444: |
| 286 | if (r != 0) |
| 287 | break; |
| 288 | |
| 289 | if (regno < 0) { |
| 290 | r = -EINVAL; |
| 291 | break; |
| 292 | } |
| 293 | |
| 294 | if (regno < 16) { |
| 295 | u16 pal; |
| 296 | pal = ((red >> (16 - var->red.length)) << |
| 297 | var->red.offset) | |
| 298 | ((green >> (16 - var->green.length)) << |
| 299 | var->green.offset) | |
| 300 | (blue >> (16 - var->blue.length)); |
| 301 | ((u32 *)(info->pseudo_palette))[regno] = pal; |
| 302 | } |
| 303 | break; |
| 304 | default: |
| 305 | BUG(); |
| 306 | } |
| 307 | return r; |
| 308 | } |
| 309 | |
| 310 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 311 | u_int transp, struct fb_info *info) |
| 312 | { |
| 313 | return _setcolreg(info, regno, red, green, blue, transp, 1); |
| 314 | } |
| 315 | |
| 316 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) |
| 317 | { |
| 318 | int count, index, r; |
| 319 | u16 *red, *green, *blue, *transp; |
| 320 | u16 trans = 0xffff; |
| 321 | |
| 322 | red = cmap->red; |
| 323 | green = cmap->green; |
| 324 | blue = cmap->blue; |
| 325 | transp = cmap->transp; |
| 326 | index = cmap->start; |
| 327 | |
| 328 | for (count = 0; count < cmap->len; count++) { |
| 329 | if (transp) |
| 330 | trans = *transp++; |
| 331 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, |
| 332 | count == cmap->len - 1); |
| 333 | if (r != 0) |
| 334 | return r; |
| 335 | } |
| 336 | |
| 337 | return 0; |
| 338 | } |
| 339 | |
| 340 | static int omapfb_update_full_screen(struct fb_info *fbi); |
| 341 | |
| 342 | static int omapfb_blank(int blank, struct fb_info *fbi) |
| 343 | { |
| 344 | struct omapfb_plane_struct *plane = fbi->par; |
| 345 | struct omapfb_device *fbdev = plane->fbdev; |
| 346 | int do_update = 0; |
| 347 | int r = 0; |
| 348 | |
| 349 | omapfb_rqueue_lock(fbdev); |
| 350 | switch (blank) { |
Felipe Contreras | c958557 | 2009-03-31 15:25:42 -0700 | [diff] [blame] | 351 | case FB_BLANK_UNBLANK: |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 352 | if (fbdev->state == OMAPFB_SUSPENDED) { |
| 353 | if (fbdev->ctrl->resume) |
| 354 | fbdev->ctrl->resume(); |
| 355 | fbdev->panel->enable(fbdev->panel); |
| 356 | fbdev->state = OMAPFB_ACTIVE; |
| 357 | if (fbdev->ctrl->get_update_mode() == |
| 358 | OMAPFB_MANUAL_UPDATE) |
| 359 | do_update = 1; |
| 360 | } |
| 361 | break; |
Felipe Contreras | c958557 | 2009-03-31 15:25:42 -0700 | [diff] [blame] | 362 | case FB_BLANK_POWERDOWN: |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 363 | if (fbdev->state == OMAPFB_ACTIVE) { |
| 364 | fbdev->panel->disable(fbdev->panel); |
| 365 | if (fbdev->ctrl->suspend) |
| 366 | fbdev->ctrl->suspend(); |
| 367 | fbdev->state = OMAPFB_SUSPENDED; |
| 368 | } |
| 369 | break; |
| 370 | default: |
| 371 | r = -EINVAL; |
| 372 | } |
| 373 | omapfb_rqueue_unlock(fbdev); |
| 374 | |
| 375 | if (r == 0 && do_update) |
| 376 | r = omapfb_update_full_screen(fbi); |
| 377 | |
| 378 | return r; |
| 379 | } |
| 380 | |
| 381 | static void omapfb_sync(struct fb_info *fbi) |
| 382 | { |
| 383 | struct omapfb_plane_struct *plane = fbi->par; |
| 384 | struct omapfb_device *fbdev = plane->fbdev; |
| 385 | |
| 386 | omapfb_rqueue_lock(fbdev); |
| 387 | if (fbdev->ctrl->sync) |
| 388 | fbdev->ctrl->sync(); |
| 389 | omapfb_rqueue_unlock(fbdev); |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | * Set fb_info.fix fields and also updates fbdev. |
| 394 | * When calling this fb_info.var must be set up already. |
| 395 | */ |
| 396 | static void set_fb_fix(struct fb_info *fbi) |
| 397 | { |
| 398 | struct fb_fix_screeninfo *fix = &fbi->fix; |
| 399 | struct fb_var_screeninfo *var = &fbi->var; |
| 400 | struct omapfb_plane_struct *plane = fbi->par; |
| 401 | struct omapfb_mem_region *rg; |
| 402 | int bpp; |
| 403 | |
| 404 | rg = &plane->fbdev->mem_desc.region[plane->idx]; |
Russell King | 020f970 | 2008-12-01 17:40:54 +0000 | [diff] [blame] | 405 | fbi->screen_base = rg->vaddr; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 406 | mutex_lock(&fbi->mm_lock); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 407 | fix->smem_start = rg->paddr; |
| 408 | fix->smem_len = rg->size; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 409 | mutex_unlock(&fbi->mm_lock); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 410 | |
| 411 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 412 | bpp = var->bits_per_pixel; |
| 413 | if (var->nonstd) |
| 414 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
| 415 | else switch (var->bits_per_pixel) { |
| 416 | case 16: |
| 417 | case 12: |
| 418 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 419 | /* 12bpp is stored in 16 bits */ |
| 420 | bpp = 16; |
| 421 | break; |
| 422 | case 1: |
| 423 | case 2: |
| 424 | case 4: |
| 425 | case 8: |
| 426 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
| 427 | break; |
| 428 | } |
| 429 | fix->accel = FB_ACCEL_OMAP1610; |
| 430 | fix->line_length = var->xres_virtual * bpp / 8; |
| 431 | } |
| 432 | |
| 433 | static int set_color_mode(struct omapfb_plane_struct *plane, |
| 434 | struct fb_var_screeninfo *var) |
| 435 | { |
| 436 | switch (var->nonstd) { |
| 437 | case 0: |
| 438 | break; |
| 439 | case OMAPFB_COLOR_YUV422: |
| 440 | var->bits_per_pixel = 16; |
| 441 | plane->color_mode = var->nonstd; |
| 442 | return 0; |
| 443 | case OMAPFB_COLOR_YUV420: |
| 444 | var->bits_per_pixel = 12; |
| 445 | plane->color_mode = var->nonstd; |
| 446 | return 0; |
| 447 | case OMAPFB_COLOR_YUY422: |
| 448 | var->bits_per_pixel = 16; |
| 449 | plane->color_mode = var->nonstd; |
| 450 | return 0; |
| 451 | default: |
| 452 | return -EINVAL; |
| 453 | } |
| 454 | |
| 455 | switch (var->bits_per_pixel) { |
| 456 | case 1: |
| 457 | plane->color_mode = OMAPFB_COLOR_CLUT_1BPP; |
| 458 | return 0; |
| 459 | case 2: |
| 460 | plane->color_mode = OMAPFB_COLOR_CLUT_2BPP; |
| 461 | return 0; |
| 462 | case 4: |
| 463 | plane->color_mode = OMAPFB_COLOR_CLUT_4BPP; |
| 464 | return 0; |
| 465 | case 8: |
| 466 | plane->color_mode = OMAPFB_COLOR_CLUT_8BPP; |
| 467 | return 0; |
| 468 | case 12: |
| 469 | var->bits_per_pixel = 16; |
| 470 | plane->color_mode = OMAPFB_COLOR_RGB444; |
| 471 | return 0; |
| 472 | case 16: |
| 473 | plane->color_mode = OMAPFB_COLOR_RGB565; |
| 474 | return 0; |
| 475 | default: |
| 476 | return -EINVAL; |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | /* |
| 481 | * Check the values in var against our capabilities and in case of out of |
| 482 | * bound values try to adjust them. |
| 483 | */ |
| 484 | static int set_fb_var(struct fb_info *fbi, |
| 485 | struct fb_var_screeninfo *var) |
| 486 | { |
| 487 | int bpp; |
| 488 | unsigned long max_frame_size; |
| 489 | unsigned long line_size; |
| 490 | int xres_min, xres_max; |
| 491 | int yres_min, yres_max; |
| 492 | struct omapfb_plane_struct *plane = fbi->par; |
| 493 | struct omapfb_device *fbdev = plane->fbdev; |
| 494 | struct lcd_panel *panel = fbdev->panel; |
| 495 | |
| 496 | if (set_color_mode(plane, var) < 0) |
| 497 | return -EINVAL; |
| 498 | |
| 499 | bpp = var->bits_per_pixel; |
| 500 | if (plane->color_mode == OMAPFB_COLOR_RGB444) |
| 501 | bpp = 16; |
| 502 | |
| 503 | switch (var->rotate) { |
| 504 | case 0: |
| 505 | case 180: |
| 506 | xres_min = OMAPFB_PLANE_XRES_MIN; |
| 507 | xres_max = panel->x_res; |
| 508 | yres_min = OMAPFB_PLANE_YRES_MIN; |
| 509 | yres_max = panel->y_res; |
| 510 | if (cpu_is_omap15xx()) { |
| 511 | var->xres = panel->x_res; |
| 512 | var->yres = panel->y_res; |
| 513 | } |
| 514 | break; |
| 515 | case 90: |
| 516 | case 270: |
| 517 | xres_min = OMAPFB_PLANE_YRES_MIN; |
| 518 | xres_max = panel->y_res; |
| 519 | yres_min = OMAPFB_PLANE_XRES_MIN; |
| 520 | yres_max = panel->x_res; |
| 521 | if (cpu_is_omap15xx()) { |
| 522 | var->xres = panel->y_res; |
| 523 | var->yres = panel->x_res; |
| 524 | } |
| 525 | break; |
| 526 | default: |
| 527 | return -EINVAL; |
| 528 | } |
| 529 | |
| 530 | if (var->xres < xres_min) |
| 531 | var->xres = xres_min; |
| 532 | if (var->yres < yres_min) |
| 533 | var->yres = yres_min; |
| 534 | if (var->xres > xres_max) |
| 535 | var->xres = xres_max; |
| 536 | if (var->yres > yres_max) |
| 537 | var->yres = yres_max; |
| 538 | |
| 539 | if (var->xres_virtual < var->xres) |
| 540 | var->xres_virtual = var->xres; |
| 541 | if (var->yres_virtual < var->yres) |
| 542 | var->yres_virtual = var->yres; |
| 543 | max_frame_size = fbdev->mem_desc.region[plane->idx].size; |
| 544 | line_size = var->xres_virtual * bpp / 8; |
| 545 | if (line_size * var->yres_virtual > max_frame_size) { |
| 546 | /* Try to keep yres_virtual first */ |
| 547 | line_size = max_frame_size / var->yres_virtual; |
| 548 | var->xres_virtual = line_size * 8 / bpp; |
| 549 | if (var->xres_virtual < var->xres) { |
| 550 | /* Still doesn't fit. Shrink yres_virtual too */ |
| 551 | var->xres_virtual = var->xres; |
| 552 | line_size = var->xres * bpp / 8; |
| 553 | var->yres_virtual = max_frame_size / line_size; |
| 554 | } |
| 555 | /* Recheck this, as the virtual size changed. */ |
| 556 | if (var->xres_virtual < var->xres) |
| 557 | var->xres = var->xres_virtual; |
| 558 | if (var->yres_virtual < var->yres) |
| 559 | var->yres = var->yres_virtual; |
| 560 | if (var->xres < xres_min || var->yres < yres_min) |
| 561 | return -EINVAL; |
| 562 | } |
| 563 | if (var->xres + var->xoffset > var->xres_virtual) |
| 564 | var->xoffset = var->xres_virtual - var->xres; |
| 565 | if (var->yres + var->yoffset > var->yres_virtual) |
| 566 | var->yoffset = var->yres_virtual - var->yres; |
| 567 | line_size = var->xres * bpp / 8; |
| 568 | |
| 569 | if (plane->color_mode == OMAPFB_COLOR_RGB444) { |
| 570 | var->red.offset = 8; var->red.length = 4; |
| 571 | var->red.msb_right = 0; |
| 572 | var->green.offset = 4; var->green.length = 4; |
| 573 | var->green.msb_right = 0; |
| 574 | var->blue.offset = 0; var->blue.length = 4; |
| 575 | var->blue.msb_right = 0; |
| 576 | } else { |
| 577 | var->red.offset = 11; var->red.length = 5; |
| 578 | var->red.msb_right = 0; |
| 579 | var->green.offset = 5; var->green.length = 6; |
| 580 | var->green.msb_right = 0; |
| 581 | var->blue.offset = 0; var->blue.length = 5; |
| 582 | var->blue.msb_right = 0; |
| 583 | } |
| 584 | |
| 585 | var->height = -1; |
| 586 | var->width = -1; |
| 587 | var->grayscale = 0; |
| 588 | |
| 589 | /* pixclock in ps, the rest in pixclock */ |
| 590 | var->pixclock = 10000000 / (panel->pixel_clock / 100); |
| 591 | var->left_margin = panel->hfp; |
| 592 | var->right_margin = panel->hbp; |
| 593 | var->upper_margin = panel->vfp; |
| 594 | var->lower_margin = panel->vbp; |
| 595 | var->hsync_len = panel->hsw; |
| 596 | var->vsync_len = panel->vsw; |
| 597 | |
| 598 | /* TODO: get these from panel->config */ |
| 599 | var->vmode = FB_VMODE_NONINTERLACED; |
| 600 | var->sync = 0; |
| 601 | |
| 602 | return 0; |
| 603 | } |
| 604 | |
| 605 | |
| 606 | /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */ |
| 607 | static void omapfb_rotate(struct fb_info *fbi, int rotate) |
| 608 | { |
| 609 | struct omapfb_plane_struct *plane = fbi->par; |
| 610 | struct omapfb_device *fbdev = plane->fbdev; |
| 611 | |
| 612 | omapfb_rqueue_lock(fbdev); |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 613 | if (rotate != fbi->var.rotate) { |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 614 | struct fb_var_screeninfo *new_var = &fbdev->new_var; |
| 615 | |
| 616 | memcpy(new_var, &fbi->var, sizeof(*new_var)); |
| 617 | new_var->rotate = rotate; |
| 618 | if (set_fb_var(fbi, new_var) == 0 && |
| 619 | memcmp(new_var, &fbi->var, sizeof(*new_var))) { |
| 620 | memcpy(&fbi->var, new_var, sizeof(*new_var)); |
| 621 | ctrl_change_mode(fbi); |
| 622 | } |
| 623 | } |
| 624 | omapfb_rqueue_unlock(fbdev); |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | * Set new x,y offsets in the virtual display for the visible area and switch |
| 629 | * to the new mode. |
| 630 | */ |
| 631 | static int omapfb_pan_display(struct fb_var_screeninfo *var, |
| 632 | struct fb_info *fbi) |
| 633 | { |
| 634 | struct omapfb_plane_struct *plane = fbi->par; |
| 635 | struct omapfb_device *fbdev = plane->fbdev; |
| 636 | int r = 0; |
| 637 | |
| 638 | omapfb_rqueue_lock(fbdev); |
| 639 | if (var->xoffset != fbi->var.xoffset || |
| 640 | var->yoffset != fbi->var.yoffset) { |
| 641 | struct fb_var_screeninfo *new_var = &fbdev->new_var; |
| 642 | |
| 643 | memcpy(new_var, &fbi->var, sizeof(*new_var)); |
| 644 | new_var->xoffset = var->xoffset; |
| 645 | new_var->yoffset = var->yoffset; |
| 646 | if (set_fb_var(fbi, new_var)) |
| 647 | r = -EINVAL; |
| 648 | else { |
| 649 | memcpy(&fbi->var, new_var, sizeof(*new_var)); |
| 650 | ctrl_change_mode(fbi); |
| 651 | } |
| 652 | } |
| 653 | omapfb_rqueue_unlock(fbdev); |
| 654 | |
| 655 | return r; |
| 656 | } |
| 657 | |
| 658 | /* Set mirror to vertical axis and switch to the new mode. */ |
| 659 | static int omapfb_mirror(struct fb_info *fbi, int mirror) |
| 660 | { |
| 661 | struct omapfb_plane_struct *plane = fbi->par; |
| 662 | struct omapfb_device *fbdev = plane->fbdev; |
| 663 | int r = 0; |
| 664 | |
| 665 | omapfb_rqueue_lock(fbdev); |
| 666 | mirror = mirror ? 1 : 0; |
| 667 | if (cpu_is_omap15xx()) |
| 668 | r = -EINVAL; |
| 669 | else if (mirror != plane->info.mirror) { |
| 670 | plane->info.mirror = mirror; |
| 671 | r = ctrl_change_mode(fbi); |
| 672 | } |
| 673 | omapfb_rqueue_unlock(fbdev); |
| 674 | |
| 675 | return r; |
| 676 | } |
| 677 | |
| 678 | /* |
| 679 | * Check values in var, try to adjust them in case of out of bound values if |
| 680 | * possible, or return error. |
| 681 | */ |
| 682 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) |
| 683 | { |
| 684 | struct omapfb_plane_struct *plane = fbi->par; |
| 685 | struct omapfb_device *fbdev = plane->fbdev; |
| 686 | int r; |
| 687 | |
| 688 | omapfb_rqueue_lock(fbdev); |
| 689 | if (fbdev->ctrl->sync != NULL) |
| 690 | fbdev->ctrl->sync(); |
| 691 | r = set_fb_var(fbi, var); |
| 692 | omapfb_rqueue_unlock(fbdev); |
| 693 | |
| 694 | return r; |
| 695 | } |
| 696 | |
| 697 | /* |
| 698 | * Switch to a new mode. The parameters for it has been check already by |
| 699 | * omapfb_check_var. |
| 700 | */ |
| 701 | static int omapfb_set_par(struct fb_info *fbi) |
| 702 | { |
| 703 | struct omapfb_plane_struct *plane = fbi->par; |
| 704 | struct omapfb_device *fbdev = plane->fbdev; |
| 705 | int r = 0; |
| 706 | |
| 707 | omapfb_rqueue_lock(fbdev); |
| 708 | set_fb_fix(fbi); |
| 709 | r = ctrl_change_mode(fbi); |
| 710 | omapfb_rqueue_unlock(fbdev); |
| 711 | |
| 712 | return r; |
| 713 | } |
| 714 | |
| 715 | int omapfb_update_window_async(struct fb_info *fbi, |
| 716 | struct omapfb_update_window *win, |
| 717 | void (*callback)(void *), |
| 718 | void *callback_data) |
| 719 | { |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 720 | int xres, yres; |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 721 | struct omapfb_plane_struct *plane = fbi->par; |
| 722 | struct omapfb_device *fbdev = plane->fbdev; |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 723 | struct fb_var_screeninfo *var = &fbi->var; |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 724 | |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 725 | switch (var->rotate) { |
| 726 | case 0: |
| 727 | case 180: |
| 728 | xres = fbdev->panel->x_res; |
| 729 | yres = fbdev->panel->y_res; |
| 730 | break; |
| 731 | case 90: |
| 732 | case 270: |
| 733 | xres = fbdev->panel->y_res; |
| 734 | yres = fbdev->panel->x_res; |
| 735 | break; |
| 736 | default: |
| 737 | return -EINVAL; |
| 738 | } |
| 739 | |
| 740 | if (win->x >= xres || win->y >= yres || |
| 741 | win->out_x > xres || win->out_y > yres) |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 742 | return -EINVAL; |
| 743 | |
| 744 | if (!fbdev->ctrl->update_window || |
| 745 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) |
| 746 | return -ENODEV; |
| 747 | |
Rodrigo Vivi | 2f21a62 | 2009-09-22 16:46:53 -0700 | [diff] [blame] | 748 | if (win->x + win->width > xres) |
| 749 | win->width = xres - win->x; |
| 750 | if (win->y + win->height > yres) |
| 751 | win->height = yres - win->y; |
| 752 | if (win->out_x + win->out_width > xres) |
| 753 | win->out_width = xres - win->out_x; |
| 754 | if (win->out_y + win->out_height > yres) |
| 755 | win->out_height = yres - win->out_y; |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 756 | if (!win->width || !win->height || !win->out_width || !win->out_height) |
| 757 | return 0; |
| 758 | |
| 759 | return fbdev->ctrl->update_window(fbi, win, callback, callback_data); |
| 760 | } |
| 761 | EXPORT_SYMBOL(omapfb_update_window_async); |
| 762 | |
| 763 | static int omapfb_update_win(struct fb_info *fbi, |
| 764 | struct omapfb_update_window *win) |
| 765 | { |
| 766 | struct omapfb_plane_struct *plane = fbi->par; |
| 767 | int ret; |
| 768 | |
| 769 | omapfb_rqueue_lock(plane->fbdev); |
Russell King | c0fc18c5 | 2008-09-05 15:10:27 +0100 | [diff] [blame] | 770 | ret = omapfb_update_window_async(fbi, win, NULL, NULL); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 771 | omapfb_rqueue_unlock(plane->fbdev); |
| 772 | |
| 773 | return ret; |
| 774 | } |
| 775 | |
| 776 | static int omapfb_update_full_screen(struct fb_info *fbi) |
| 777 | { |
| 778 | struct omapfb_plane_struct *plane = fbi->par; |
| 779 | struct omapfb_device *fbdev = plane->fbdev; |
| 780 | struct omapfb_update_window win; |
| 781 | int r; |
| 782 | |
| 783 | if (!fbdev->ctrl->update_window || |
| 784 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) |
| 785 | return -ENODEV; |
| 786 | |
| 787 | win.x = 0; |
| 788 | win.y = 0; |
| 789 | win.width = fbi->var.xres; |
| 790 | win.height = fbi->var.yres; |
| 791 | win.out_x = 0; |
| 792 | win.out_y = 0; |
| 793 | win.out_width = fbi->var.xres; |
| 794 | win.out_height = fbi->var.yres; |
| 795 | win.format = 0; |
| 796 | |
| 797 | omapfb_rqueue_lock(fbdev); |
Russell King | c0fc18c5 | 2008-09-05 15:10:27 +0100 | [diff] [blame] | 798 | r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 799 | omapfb_rqueue_unlock(fbdev); |
| 800 | |
| 801 | return r; |
| 802 | } |
| 803 | |
| 804 | static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) |
| 805 | { |
| 806 | struct omapfb_plane_struct *plane = fbi->par; |
| 807 | struct omapfb_device *fbdev = plane->fbdev; |
| 808 | struct lcd_panel *panel = fbdev->panel; |
| 809 | struct omapfb_plane_info old_info; |
| 810 | int r = 0; |
| 811 | |
| 812 | if (pi->pos_x + pi->out_width > panel->x_res || |
| 813 | pi->pos_y + pi->out_height > panel->y_res) |
| 814 | return -EINVAL; |
| 815 | |
| 816 | omapfb_rqueue_lock(fbdev); |
| 817 | if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) { |
| 818 | /* |
| 819 | * This plane's memory was freed, can't enable it |
| 820 | * until it's reallocated. |
| 821 | */ |
| 822 | r = -EINVAL; |
| 823 | goto out; |
| 824 | } |
| 825 | old_info = plane->info; |
| 826 | plane->info = *pi; |
| 827 | if (pi->enabled) { |
| 828 | r = ctrl_change_mode(fbi); |
| 829 | if (r < 0) { |
| 830 | plane->info = old_info; |
| 831 | goto out; |
| 832 | } |
| 833 | } |
| 834 | r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled); |
| 835 | if (r < 0) { |
| 836 | plane->info = old_info; |
| 837 | goto out; |
| 838 | } |
| 839 | out: |
| 840 | omapfb_rqueue_unlock(fbdev); |
| 841 | return r; |
| 842 | } |
| 843 | |
| 844 | static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) |
| 845 | { |
| 846 | struct omapfb_plane_struct *plane = fbi->par; |
| 847 | |
| 848 | *pi = plane->info; |
| 849 | return 0; |
| 850 | } |
| 851 | |
| 852 | static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) |
| 853 | { |
| 854 | struct omapfb_plane_struct *plane = fbi->par; |
| 855 | struct omapfb_device *fbdev = plane->fbdev; |
| 856 | struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx]; |
| 857 | size_t size; |
| 858 | int r = 0; |
| 859 | |
| 860 | if (fbdev->ctrl->setup_mem == NULL) |
| 861 | return -ENODEV; |
| 862 | if (mi->type > OMAPFB_MEMTYPE_MAX) |
| 863 | return -EINVAL; |
| 864 | |
| 865 | size = PAGE_ALIGN(mi->size); |
| 866 | omapfb_rqueue_lock(fbdev); |
| 867 | if (plane->info.enabled) { |
| 868 | r = -EBUSY; |
| 869 | goto out; |
| 870 | } |
| 871 | if (rg->size != size || rg->type != mi->type) { |
| 872 | struct fb_var_screeninfo *new_var = &fbdev->new_var; |
| 873 | unsigned long old_size = rg->size; |
| 874 | u8 old_type = rg->type; |
| 875 | unsigned long paddr; |
| 876 | |
| 877 | rg->size = size; |
| 878 | rg->type = mi->type; |
| 879 | /* |
| 880 | * size == 0 is a special case, for which we |
| 881 | * don't check / adjust the screen parameters. |
| 882 | * This isn't a problem since the plane can't |
| 883 | * be reenabled unless its size is > 0. |
| 884 | */ |
| 885 | if (old_size != size && size) { |
| 886 | if (size) { |
| 887 | memcpy(new_var, &fbi->var, sizeof(*new_var)); |
| 888 | r = set_fb_var(fbi, new_var); |
| 889 | if (r < 0) |
| 890 | goto out; |
| 891 | } |
| 892 | } |
| 893 | |
| 894 | if (fbdev->ctrl->sync) |
| 895 | fbdev->ctrl->sync(); |
| 896 | r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr); |
| 897 | if (r < 0) { |
| 898 | /* Revert changes. */ |
| 899 | rg->size = old_size; |
| 900 | rg->type = old_type; |
| 901 | goto out; |
| 902 | } |
| 903 | rg->paddr = paddr; |
| 904 | |
| 905 | if (old_size != size) { |
| 906 | if (size) { |
| 907 | memcpy(&fbi->var, new_var, sizeof(fbi->var)); |
| 908 | set_fb_fix(fbi); |
| 909 | } else { |
| 910 | /* |
| 911 | * Set these explicitly to indicate that the |
| 912 | * plane memory is dealloce'd, the other |
| 913 | * screen parameters in var / fix are invalid. |
| 914 | */ |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 915 | mutex_lock(&fbi->mm_lock); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 916 | fbi->fix.smem_start = 0; |
| 917 | fbi->fix.smem_len = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 918 | mutex_unlock(&fbi->mm_lock); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 919 | } |
| 920 | } |
| 921 | } |
| 922 | out: |
| 923 | omapfb_rqueue_unlock(fbdev); |
| 924 | |
| 925 | return r; |
| 926 | } |
| 927 | |
| 928 | static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) |
| 929 | { |
| 930 | struct omapfb_plane_struct *plane = fbi->par; |
| 931 | struct omapfb_device *fbdev = plane->fbdev; |
| 932 | struct omapfb_mem_region *rg; |
| 933 | |
| 934 | rg = &fbdev->mem_desc.region[plane->idx]; |
| 935 | memset(mi, 0, sizeof(*mi)); |
| 936 | mi->size = rg->size; |
| 937 | mi->type = rg->type; |
| 938 | |
| 939 | return 0; |
| 940 | } |
| 941 | |
| 942 | static int omapfb_set_color_key(struct omapfb_device *fbdev, |
| 943 | struct omapfb_color_key *ck) |
| 944 | { |
| 945 | int r; |
| 946 | |
| 947 | if (!fbdev->ctrl->set_color_key) |
| 948 | return -ENODEV; |
| 949 | |
| 950 | omapfb_rqueue_lock(fbdev); |
| 951 | r = fbdev->ctrl->set_color_key(ck); |
| 952 | omapfb_rqueue_unlock(fbdev); |
| 953 | |
| 954 | return r; |
| 955 | } |
| 956 | |
| 957 | static int omapfb_get_color_key(struct omapfb_device *fbdev, |
| 958 | struct omapfb_color_key *ck) |
| 959 | { |
| 960 | int r; |
| 961 | |
| 962 | if (!fbdev->ctrl->get_color_key) |
| 963 | return -ENODEV; |
| 964 | |
| 965 | omapfb_rqueue_lock(fbdev); |
| 966 | r = fbdev->ctrl->get_color_key(ck); |
| 967 | omapfb_rqueue_unlock(fbdev); |
| 968 | |
| 969 | return r; |
| 970 | } |
| 971 | |
| 972 | static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM]; |
| 973 | static int notifier_inited; |
| 974 | |
| 975 | static void omapfb_init_notifier(void) |
| 976 | { |
| 977 | int i; |
| 978 | |
| 979 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) |
| 980 | BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]); |
| 981 | } |
| 982 | |
| 983 | int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb, |
| 984 | omapfb_notifier_callback_t callback, |
| 985 | void *callback_data) |
| 986 | { |
| 987 | int r; |
| 988 | |
| 989 | if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM) |
| 990 | return -EINVAL; |
| 991 | |
| 992 | if (!notifier_inited) { |
| 993 | omapfb_init_notifier(); |
| 994 | notifier_inited = 1; |
| 995 | } |
| 996 | |
| 997 | omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *, |
| 998 | unsigned long, void *))callback; |
| 999 | omapfb_nb->data = callback_data; |
| 1000 | r = blocking_notifier_chain_register( |
| 1001 | &omapfb_client_list[omapfb_nb->plane_idx], |
| 1002 | &omapfb_nb->nb); |
| 1003 | if (r) |
| 1004 | return r; |
| 1005 | if (omapfb_dev != NULL && |
| 1006 | omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) { |
| 1007 | omapfb_dev->ctrl->bind_client(omapfb_nb); |
| 1008 | } |
| 1009 | |
| 1010 | return 0; |
| 1011 | } |
| 1012 | EXPORT_SYMBOL(omapfb_register_client); |
| 1013 | |
| 1014 | int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb) |
| 1015 | { |
| 1016 | return blocking_notifier_chain_unregister( |
| 1017 | &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb); |
| 1018 | } |
| 1019 | EXPORT_SYMBOL(omapfb_unregister_client); |
| 1020 | |
| 1021 | void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event) |
| 1022 | { |
| 1023 | int i; |
| 1024 | |
| 1025 | if (!notifier_inited) |
| 1026 | /* no client registered yet */ |
| 1027 | return; |
| 1028 | |
| 1029 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) |
| 1030 | blocking_notifier_call_chain(&omapfb_client_list[i], event, |
| 1031 | fbdev->fb_info[i]); |
| 1032 | } |
| 1033 | EXPORT_SYMBOL(omapfb_notify_clients); |
| 1034 | |
| 1035 | static int omapfb_set_update_mode(struct omapfb_device *fbdev, |
| 1036 | enum omapfb_update_mode mode) |
| 1037 | { |
| 1038 | int r; |
| 1039 | |
| 1040 | omapfb_rqueue_lock(fbdev); |
| 1041 | r = fbdev->ctrl->set_update_mode(mode); |
| 1042 | omapfb_rqueue_unlock(fbdev); |
| 1043 | |
| 1044 | return r; |
| 1045 | } |
| 1046 | |
| 1047 | static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev) |
| 1048 | { |
| 1049 | int r; |
| 1050 | |
| 1051 | omapfb_rqueue_lock(fbdev); |
| 1052 | r = fbdev->ctrl->get_update_mode(); |
| 1053 | omapfb_rqueue_unlock(fbdev); |
| 1054 | |
| 1055 | return r; |
| 1056 | } |
| 1057 | |
| 1058 | static void omapfb_get_caps(struct omapfb_device *fbdev, int plane, |
| 1059 | struct omapfb_caps *caps) |
| 1060 | { |
| 1061 | memset(caps, 0, sizeof(*caps)); |
| 1062 | fbdev->ctrl->get_caps(plane, caps); |
| 1063 | caps->ctrl |= fbdev->panel->get_caps(fbdev->panel); |
| 1064 | } |
| 1065 | |
| 1066 | /* For lcd testing */ |
| 1067 | void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval) |
| 1068 | { |
| 1069 | omapfb_rqueue_lock(fbdev); |
| 1070 | *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval; |
| 1071 | if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) { |
| 1072 | struct omapfb_update_window win; |
| 1073 | |
| 1074 | memset(&win, 0, sizeof(win)); |
| 1075 | win.width = 2; |
| 1076 | win.height = 2; |
| 1077 | win.out_width = 2; |
| 1078 | win.out_height = 2; |
Russell King | c0fc18c5 | 2008-09-05 15:10:27 +0100 | [diff] [blame] | 1079 | fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1080 | } |
| 1081 | omapfb_rqueue_unlock(fbdev); |
| 1082 | } |
| 1083 | EXPORT_SYMBOL(omapfb_write_first_pixel); |
| 1084 | |
| 1085 | /* |
| 1086 | * Ioctl interface. Part of the kernel mode frame buffer API is duplicated |
| 1087 | * here to be accessible by user mode code. |
| 1088 | */ |
| 1089 | static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, |
| 1090 | unsigned long arg) |
| 1091 | { |
| 1092 | struct omapfb_plane_struct *plane = fbi->par; |
| 1093 | struct omapfb_device *fbdev = plane->fbdev; |
| 1094 | struct fb_ops *ops = fbi->fbops; |
| 1095 | union { |
| 1096 | struct omapfb_update_window update_window; |
| 1097 | struct omapfb_plane_info plane_info; |
| 1098 | struct omapfb_mem_info mem_info; |
| 1099 | struct omapfb_color_key color_key; |
| 1100 | enum omapfb_update_mode update_mode; |
| 1101 | struct omapfb_caps caps; |
| 1102 | unsigned int mirror; |
| 1103 | int plane_out; |
| 1104 | int enable_plane; |
| 1105 | } p; |
| 1106 | int r = 0; |
| 1107 | |
| 1108 | BUG_ON(!ops); |
| 1109 | switch (cmd) { |
| 1110 | case OMAPFB_MIRROR: |
| 1111 | if (get_user(p.mirror, (int __user *)arg)) |
| 1112 | r = -EFAULT; |
| 1113 | else |
| 1114 | omapfb_mirror(fbi, p.mirror); |
| 1115 | break; |
| 1116 | case OMAPFB_SYNC_GFX: |
| 1117 | omapfb_sync(fbi); |
| 1118 | break; |
| 1119 | case OMAPFB_VSYNC: |
| 1120 | break; |
| 1121 | case OMAPFB_SET_UPDATE_MODE: |
| 1122 | if (get_user(p.update_mode, (int __user *)arg)) |
| 1123 | r = -EFAULT; |
| 1124 | else |
| 1125 | r = omapfb_set_update_mode(fbdev, p.update_mode); |
| 1126 | break; |
| 1127 | case OMAPFB_GET_UPDATE_MODE: |
| 1128 | p.update_mode = omapfb_get_update_mode(fbdev); |
| 1129 | if (put_user(p.update_mode, |
| 1130 | (enum omapfb_update_mode __user *)arg)) |
| 1131 | r = -EFAULT; |
| 1132 | break; |
| 1133 | case OMAPFB_UPDATE_WINDOW_OLD: |
| 1134 | if (copy_from_user(&p.update_window, (void __user *)arg, |
| 1135 | sizeof(struct omapfb_update_window_old))) |
| 1136 | r = -EFAULT; |
| 1137 | else { |
| 1138 | struct omapfb_update_window *u = &p.update_window; |
| 1139 | u->out_x = u->x; |
| 1140 | u->out_y = u->y; |
| 1141 | u->out_width = u->width; |
| 1142 | u->out_height = u->height; |
| 1143 | memset(u->reserved, 0, sizeof(u->reserved)); |
| 1144 | r = omapfb_update_win(fbi, u); |
| 1145 | } |
| 1146 | break; |
| 1147 | case OMAPFB_UPDATE_WINDOW: |
| 1148 | if (copy_from_user(&p.update_window, (void __user *)arg, |
| 1149 | sizeof(p.update_window))) |
| 1150 | r = -EFAULT; |
| 1151 | else |
| 1152 | r = omapfb_update_win(fbi, &p.update_window); |
| 1153 | break; |
| 1154 | case OMAPFB_SETUP_PLANE: |
| 1155 | if (copy_from_user(&p.plane_info, (void __user *)arg, |
| 1156 | sizeof(p.plane_info))) |
| 1157 | r = -EFAULT; |
| 1158 | else |
| 1159 | r = omapfb_setup_plane(fbi, &p.plane_info); |
| 1160 | break; |
| 1161 | case OMAPFB_QUERY_PLANE: |
| 1162 | if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0) |
| 1163 | break; |
| 1164 | if (copy_to_user((void __user *)arg, &p.plane_info, |
| 1165 | sizeof(p.plane_info))) |
| 1166 | r = -EFAULT; |
| 1167 | break; |
| 1168 | case OMAPFB_SETUP_MEM: |
| 1169 | if (copy_from_user(&p.mem_info, (void __user *)arg, |
| 1170 | sizeof(p.mem_info))) |
| 1171 | r = -EFAULT; |
| 1172 | else |
| 1173 | r = omapfb_setup_mem(fbi, &p.mem_info); |
| 1174 | break; |
| 1175 | case OMAPFB_QUERY_MEM: |
| 1176 | if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0) |
| 1177 | break; |
| 1178 | if (copy_to_user((void __user *)arg, &p.mem_info, |
| 1179 | sizeof(p.mem_info))) |
| 1180 | r = -EFAULT; |
| 1181 | break; |
| 1182 | case OMAPFB_SET_COLOR_KEY: |
| 1183 | if (copy_from_user(&p.color_key, (void __user *)arg, |
| 1184 | sizeof(p.color_key))) |
| 1185 | r = -EFAULT; |
| 1186 | else |
| 1187 | r = omapfb_set_color_key(fbdev, &p.color_key); |
| 1188 | break; |
| 1189 | case OMAPFB_GET_COLOR_KEY: |
| 1190 | if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0) |
| 1191 | break; |
| 1192 | if (copy_to_user((void __user *)arg, &p.color_key, |
| 1193 | sizeof(p.color_key))) |
| 1194 | r = -EFAULT; |
| 1195 | break; |
| 1196 | case OMAPFB_GET_CAPS: |
| 1197 | omapfb_get_caps(fbdev, plane->idx, &p.caps); |
| 1198 | if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) |
| 1199 | r = -EFAULT; |
| 1200 | break; |
| 1201 | case OMAPFB_LCD_TEST: |
| 1202 | { |
| 1203 | int test_num; |
| 1204 | |
| 1205 | if (get_user(test_num, (int __user *)arg)) { |
| 1206 | r = -EFAULT; |
| 1207 | break; |
| 1208 | } |
| 1209 | if (!fbdev->panel->run_test) { |
| 1210 | r = -EINVAL; |
| 1211 | break; |
| 1212 | } |
| 1213 | r = fbdev->panel->run_test(fbdev->panel, test_num); |
| 1214 | break; |
| 1215 | } |
| 1216 | case OMAPFB_CTRL_TEST: |
| 1217 | { |
| 1218 | int test_num; |
| 1219 | |
| 1220 | if (get_user(test_num, (int __user *)arg)) { |
| 1221 | r = -EFAULT; |
| 1222 | break; |
| 1223 | } |
| 1224 | if (!fbdev->ctrl->run_test) { |
| 1225 | r = -EINVAL; |
| 1226 | break; |
| 1227 | } |
| 1228 | r = fbdev->ctrl->run_test(test_num); |
| 1229 | break; |
| 1230 | } |
| 1231 | default: |
| 1232 | r = -EINVAL; |
| 1233 | } |
| 1234 | |
| 1235 | return r; |
| 1236 | } |
| 1237 | |
| 1238 | static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma) |
| 1239 | { |
| 1240 | struct omapfb_plane_struct *plane = info->par; |
| 1241 | struct omapfb_device *fbdev = plane->fbdev; |
| 1242 | int r; |
| 1243 | |
| 1244 | omapfb_rqueue_lock(fbdev); |
| 1245 | r = fbdev->ctrl->mmap(info, vma); |
| 1246 | omapfb_rqueue_unlock(fbdev); |
| 1247 | |
| 1248 | return r; |
| 1249 | } |
| 1250 | |
| 1251 | /* |
| 1252 | * Callback table for the frame buffer framework. Some of these pointers |
| 1253 | * will be changed according to the current setting of fb_info->accel_flags. |
| 1254 | */ |
| 1255 | static struct fb_ops omapfb_ops = { |
| 1256 | .owner = THIS_MODULE, |
| 1257 | .fb_open = omapfb_open, |
| 1258 | .fb_release = omapfb_release, |
| 1259 | .fb_setcolreg = omapfb_setcolreg, |
| 1260 | .fb_setcmap = omapfb_setcmap, |
| 1261 | .fb_fillrect = cfb_fillrect, |
| 1262 | .fb_copyarea = cfb_copyarea, |
| 1263 | .fb_imageblit = cfb_imageblit, |
| 1264 | .fb_blank = omapfb_blank, |
| 1265 | .fb_ioctl = omapfb_ioctl, |
| 1266 | .fb_check_var = omapfb_check_var, |
| 1267 | .fb_set_par = omapfb_set_par, |
| 1268 | .fb_rotate = omapfb_rotate, |
| 1269 | .fb_pan_display = omapfb_pan_display, |
| 1270 | }; |
| 1271 | |
| 1272 | /* |
| 1273 | * --------------------------------------------------------------------------- |
| 1274 | * Sysfs interface |
| 1275 | * --------------------------------------------------------------------------- |
| 1276 | */ |
| 1277 | /* omapfbX sysfs entries */ |
| 1278 | static ssize_t omapfb_show_caps_num(struct device *dev, |
| 1279 | struct device_attribute *attr, char *buf) |
| 1280 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1281 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1282 | int plane; |
| 1283 | size_t size; |
| 1284 | struct omapfb_caps caps; |
| 1285 | |
| 1286 | plane = 0; |
| 1287 | size = 0; |
| 1288 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { |
| 1289 | omapfb_get_caps(fbdev, plane, &caps); |
| 1290 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1291 | "plane#%d %#010x %#010x %#010x\n", |
| 1292 | plane, caps.ctrl, caps.plane_color, caps.wnd_color); |
| 1293 | plane++; |
| 1294 | } |
| 1295 | return size; |
| 1296 | } |
| 1297 | |
| 1298 | static ssize_t omapfb_show_caps_text(struct device *dev, |
| 1299 | struct device_attribute *attr, char *buf) |
| 1300 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1301 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1302 | int i; |
| 1303 | struct omapfb_caps caps; |
| 1304 | int plane; |
| 1305 | size_t size; |
| 1306 | |
| 1307 | plane = 0; |
| 1308 | size = 0; |
| 1309 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { |
| 1310 | omapfb_get_caps(fbdev, plane, &caps); |
| 1311 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1312 | "plane#%d:\n", plane); |
| 1313 | for (i = 0; i < ARRAY_SIZE(ctrl_caps) && |
| 1314 | size < PAGE_SIZE; i++) { |
| 1315 | if (ctrl_caps[i].flag & caps.ctrl) |
| 1316 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1317 | " %s\n", ctrl_caps[i].name); |
| 1318 | } |
| 1319 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1320 | " plane colors:\n"); |
| 1321 | for (i = 0; i < ARRAY_SIZE(color_caps) && |
| 1322 | size < PAGE_SIZE; i++) { |
| 1323 | if (color_caps[i].flag & caps.plane_color) |
| 1324 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1325 | " %s\n", color_caps[i].name); |
| 1326 | } |
| 1327 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1328 | " window colors:\n"); |
| 1329 | for (i = 0; i < ARRAY_SIZE(color_caps) && |
| 1330 | size < PAGE_SIZE; i++) { |
| 1331 | if (color_caps[i].flag & caps.wnd_color) |
| 1332 | size += snprintf(&buf[size], PAGE_SIZE - size, |
| 1333 | " %s\n", color_caps[i].name); |
| 1334 | } |
| 1335 | |
| 1336 | plane++; |
| 1337 | } |
| 1338 | return size; |
| 1339 | } |
| 1340 | |
| 1341 | static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL); |
| 1342 | static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL); |
| 1343 | |
| 1344 | /* panel sysfs entries */ |
| 1345 | static ssize_t omapfb_show_panel_name(struct device *dev, |
| 1346 | struct device_attribute *attr, char *buf) |
| 1347 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1348 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1349 | |
| 1350 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name); |
| 1351 | } |
| 1352 | |
| 1353 | static ssize_t omapfb_show_bklight_level(struct device *dev, |
| 1354 | struct device_attribute *attr, |
| 1355 | char *buf) |
| 1356 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1357 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1358 | int r; |
| 1359 | |
| 1360 | if (fbdev->panel->get_bklight_level) { |
| 1361 | r = snprintf(buf, PAGE_SIZE, "%d\n", |
| 1362 | fbdev->panel->get_bklight_level(fbdev->panel)); |
| 1363 | } else |
| 1364 | r = -ENODEV; |
| 1365 | return r; |
| 1366 | } |
| 1367 | |
| 1368 | static ssize_t omapfb_store_bklight_level(struct device *dev, |
| 1369 | struct device_attribute *attr, |
| 1370 | const char *buf, size_t size) |
| 1371 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1372 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1373 | int r; |
| 1374 | |
| 1375 | if (fbdev->panel->set_bklight_level) { |
| 1376 | unsigned int level; |
| 1377 | |
| 1378 | if (sscanf(buf, "%10d", &level) == 1) { |
| 1379 | r = fbdev->panel->set_bklight_level(fbdev->panel, |
| 1380 | level); |
| 1381 | } else |
| 1382 | r = -EINVAL; |
| 1383 | } else |
| 1384 | r = -ENODEV; |
| 1385 | return r ? r : size; |
| 1386 | } |
| 1387 | |
| 1388 | static ssize_t omapfb_show_bklight_max(struct device *dev, |
| 1389 | struct device_attribute *attr, char *buf) |
| 1390 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1391 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1392 | int r; |
| 1393 | |
| 1394 | if (fbdev->panel->get_bklight_level) { |
| 1395 | r = snprintf(buf, PAGE_SIZE, "%d\n", |
| 1396 | fbdev->panel->get_bklight_max(fbdev->panel)); |
| 1397 | } else |
| 1398 | r = -ENODEV; |
| 1399 | return r; |
| 1400 | } |
| 1401 | |
| 1402 | static struct device_attribute dev_attr_panel_name = |
| 1403 | __ATTR(name, 0444, omapfb_show_panel_name, NULL); |
| 1404 | static DEVICE_ATTR(backlight_level, 0664, |
| 1405 | omapfb_show_bklight_level, omapfb_store_bklight_level); |
| 1406 | static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL); |
| 1407 | |
| 1408 | static struct attribute *panel_attrs[] = { |
| 1409 | &dev_attr_panel_name.attr, |
| 1410 | &dev_attr_backlight_level.attr, |
| 1411 | &dev_attr_backlight_max.attr, |
| 1412 | NULL, |
| 1413 | }; |
| 1414 | |
| 1415 | static struct attribute_group panel_attr_grp = { |
| 1416 | .name = "panel", |
| 1417 | .attrs = panel_attrs, |
| 1418 | }; |
| 1419 | |
| 1420 | /* ctrl sysfs entries */ |
| 1421 | static ssize_t omapfb_show_ctrl_name(struct device *dev, |
| 1422 | struct device_attribute *attr, char *buf) |
| 1423 | { |
Greg Kroah-Hartman | 5e9a8bd | 2009-06-23 08:31:46 -0700 | [diff] [blame] | 1424 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1425 | |
| 1426 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name); |
| 1427 | } |
| 1428 | |
| 1429 | static struct device_attribute dev_attr_ctrl_name = |
| 1430 | __ATTR(name, 0444, omapfb_show_ctrl_name, NULL); |
| 1431 | |
| 1432 | static struct attribute *ctrl_attrs[] = { |
| 1433 | &dev_attr_ctrl_name.attr, |
| 1434 | NULL, |
| 1435 | }; |
| 1436 | |
| 1437 | static struct attribute_group ctrl_attr_grp = { |
| 1438 | .name = "ctrl", |
| 1439 | .attrs = ctrl_attrs, |
| 1440 | }; |
| 1441 | |
| 1442 | static int omapfb_register_sysfs(struct omapfb_device *fbdev) |
| 1443 | { |
| 1444 | int r; |
| 1445 | |
| 1446 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num))) |
| 1447 | goto fail0; |
| 1448 | |
| 1449 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text))) |
| 1450 | goto fail1; |
| 1451 | |
| 1452 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp))) |
| 1453 | goto fail2; |
| 1454 | |
| 1455 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp))) |
| 1456 | goto fail3; |
| 1457 | |
| 1458 | return 0; |
| 1459 | fail3: |
| 1460 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); |
| 1461 | fail2: |
| 1462 | device_remove_file(fbdev->dev, &dev_attr_caps_text); |
| 1463 | fail1: |
| 1464 | device_remove_file(fbdev->dev, &dev_attr_caps_num); |
| 1465 | fail0: |
| 1466 | dev_err(fbdev->dev, "unable to register sysfs interface\n"); |
| 1467 | return r; |
| 1468 | } |
| 1469 | |
| 1470 | static void omapfb_unregister_sysfs(struct omapfb_device *fbdev) |
| 1471 | { |
| 1472 | sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp); |
| 1473 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); |
| 1474 | device_remove_file(fbdev->dev, &dev_attr_caps_num); |
| 1475 | device_remove_file(fbdev->dev, &dev_attr_caps_text); |
| 1476 | } |
| 1477 | |
| 1478 | /* |
| 1479 | * --------------------------------------------------------------------------- |
| 1480 | * LDM callbacks |
| 1481 | * --------------------------------------------------------------------------- |
| 1482 | */ |
| 1483 | /* Initialize system fb_info object and set the default video mode. |
| 1484 | * The frame buffer memory already allocated by lcddma_init |
| 1485 | */ |
| 1486 | static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) |
| 1487 | { |
| 1488 | struct fb_var_screeninfo *var = &info->var; |
| 1489 | struct fb_fix_screeninfo *fix = &info->fix; |
| 1490 | int r = 0; |
| 1491 | |
| 1492 | info->fbops = &omapfb_ops; |
| 1493 | info->flags = FBINFO_FLAG_DEFAULT; |
| 1494 | |
| 1495 | strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); |
| 1496 | |
| 1497 | info->pseudo_palette = fbdev->pseudo_palette; |
| 1498 | |
| 1499 | var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0; |
| 1500 | var->xres = def_vxres; |
| 1501 | var->yres = def_vyres; |
| 1502 | var->xres_virtual = def_vxres; |
| 1503 | var->yres_virtual = def_vyres; |
| 1504 | var->rotate = def_rotate; |
| 1505 | var->bits_per_pixel = fbdev->panel->bpp; |
| 1506 | |
| 1507 | set_fb_var(info, var); |
| 1508 | set_fb_fix(info); |
| 1509 | |
| 1510 | r = fb_alloc_cmap(&info->cmap, 16, 0); |
| 1511 | if (r != 0) |
| 1512 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); |
| 1513 | |
| 1514 | return r; |
| 1515 | } |
| 1516 | |
| 1517 | /* Release the fb_info object */ |
| 1518 | static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi) |
| 1519 | { |
| 1520 | fb_dealloc_cmap(&fbi->cmap); |
| 1521 | } |
| 1522 | |
| 1523 | static void planes_cleanup(struct omapfb_device *fbdev) |
| 1524 | { |
| 1525 | int i; |
| 1526 | |
| 1527 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { |
| 1528 | if (fbdev->fb_info[i] == NULL) |
| 1529 | break; |
| 1530 | fbinfo_cleanup(fbdev, fbdev->fb_info[i]); |
| 1531 | framebuffer_release(fbdev->fb_info[i]); |
| 1532 | } |
| 1533 | } |
| 1534 | |
| 1535 | static int planes_init(struct omapfb_device *fbdev) |
| 1536 | { |
| 1537 | struct fb_info *fbi; |
| 1538 | int i; |
| 1539 | int r; |
| 1540 | |
| 1541 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { |
| 1542 | struct omapfb_plane_struct *plane; |
| 1543 | fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct), |
| 1544 | fbdev->dev); |
| 1545 | if (fbi == NULL) { |
| 1546 | dev_err(fbdev->dev, |
| 1547 | "unable to allocate memory for plane info\n"); |
| 1548 | planes_cleanup(fbdev); |
| 1549 | return -ENOMEM; |
| 1550 | } |
| 1551 | plane = fbi->par; |
| 1552 | plane->idx = i; |
| 1553 | plane->fbdev = fbdev; |
| 1554 | plane->info.mirror = def_mirror; |
| 1555 | fbdev->fb_info[i] = fbi; |
| 1556 | |
| 1557 | if ((r = fbinfo_init(fbdev, fbi)) < 0) { |
| 1558 | framebuffer_release(fbi); |
| 1559 | planes_cleanup(fbdev); |
| 1560 | return r; |
| 1561 | } |
| 1562 | plane->info.out_width = fbi->var.xres; |
| 1563 | plane->info.out_height = fbi->var.yres; |
| 1564 | } |
| 1565 | return 0; |
| 1566 | } |
| 1567 | |
| 1568 | /* |
| 1569 | * Free driver resources. Can be called to rollback an aborted initialization |
| 1570 | * sequence. |
| 1571 | */ |
| 1572 | static void omapfb_free_resources(struct omapfb_device *fbdev, int state) |
| 1573 | { |
| 1574 | int i; |
| 1575 | |
| 1576 | switch (state) { |
| 1577 | case OMAPFB_ACTIVE: |
| 1578 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) |
| 1579 | unregister_framebuffer(fbdev->fb_info[i]); |
| 1580 | case 7: |
| 1581 | omapfb_unregister_sysfs(fbdev); |
| 1582 | case 6: |
| 1583 | fbdev->panel->disable(fbdev->panel); |
| 1584 | case 5: |
| 1585 | omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); |
| 1586 | case 4: |
| 1587 | planes_cleanup(fbdev); |
| 1588 | case 3: |
| 1589 | ctrl_cleanup(fbdev); |
| 1590 | case 2: |
| 1591 | fbdev->panel->cleanup(fbdev->panel); |
| 1592 | case 1: |
| 1593 | dev_set_drvdata(fbdev->dev, NULL); |
| 1594 | kfree(fbdev); |
| 1595 | case 0: |
| 1596 | /* nothing to free */ |
| 1597 | break; |
| 1598 | default: |
| 1599 | BUG(); |
| 1600 | } |
| 1601 | } |
| 1602 | |
| 1603 | static int omapfb_find_ctrl(struct omapfb_device *fbdev) |
| 1604 | { |
| 1605 | struct omapfb_platform_data *conf; |
| 1606 | char name[17]; |
| 1607 | int i; |
| 1608 | |
| 1609 | conf = fbdev->dev->platform_data; |
| 1610 | |
| 1611 | fbdev->ctrl = NULL; |
| 1612 | |
| 1613 | strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); |
| 1614 | name[sizeof(name) - 1] = '\0'; |
| 1615 | |
| 1616 | if (strcmp(name, "internal") == 0) { |
| 1617 | fbdev->ctrl = fbdev->int_ctrl; |
| 1618 | return 0; |
| 1619 | } |
| 1620 | |
| 1621 | for (i = 0; i < ARRAY_SIZE(ctrls); i++) { |
| 1622 | dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name); |
| 1623 | if (strcmp(ctrls[i]->name, name) == 0) { |
| 1624 | fbdev->ctrl = ctrls[i]; |
| 1625 | break; |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | if (fbdev->ctrl == NULL) { |
| 1630 | dev_dbg(fbdev->dev, "ctrl %s not supported\n", name); |
| 1631 | return -1; |
| 1632 | } |
| 1633 | |
| 1634 | return 0; |
| 1635 | } |
| 1636 | |
| 1637 | static void check_required_callbacks(struct omapfb_device *fbdev) |
| 1638 | { |
| 1639 | #define _C(x) (fbdev->ctrl->x != NULL) |
| 1640 | #define _P(x) (fbdev->panel->x != NULL) |
| 1641 | BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL); |
| 1642 | BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) && |
| 1643 | _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) && |
| 1644 | _P(init) && _P(cleanup) && _P(enable) && _P(disable) && |
| 1645 | _P(get_caps))); |
| 1646 | #undef _P |
| 1647 | #undef _C |
| 1648 | } |
| 1649 | |
| 1650 | /* |
| 1651 | * Called by LDM binding to probe and attach a new device. |
| 1652 | * Initialization sequence: |
| 1653 | * 1. allocate system omapfb_device structure |
| 1654 | * 2. select controller type according to platform configuration |
| 1655 | * init LCD panel |
| 1656 | * 3. init LCD controller and LCD DMA |
| 1657 | * 4. init system fb_info structure for all planes |
| 1658 | * 5. setup video mode for first plane and enable it |
| 1659 | * 6. enable LCD panel |
| 1660 | * 7. register sysfs attributes |
| 1661 | * OMAPFB_ACTIVE: register system fb_info structure for all planes |
| 1662 | */ |
| 1663 | static int omapfb_do_probe(struct platform_device *pdev, |
| 1664 | struct lcd_panel *panel) |
| 1665 | { |
| 1666 | struct omapfb_device *fbdev = NULL; |
| 1667 | int init_state; |
| 1668 | unsigned long phz, hhz, vhz; |
| 1669 | unsigned long vram; |
| 1670 | int i; |
| 1671 | int r = 0; |
| 1672 | |
| 1673 | init_state = 0; |
| 1674 | |
| 1675 | if (pdev->num_resources != 0) { |
| 1676 | dev_err(&pdev->dev, "probed for an unknown device\n"); |
| 1677 | r = -ENODEV; |
| 1678 | goto cleanup; |
| 1679 | } |
| 1680 | |
| 1681 | if (pdev->dev.platform_data == NULL) { |
| 1682 | dev_err(&pdev->dev, "missing platform data\n"); |
| 1683 | r = -ENOENT; |
| 1684 | goto cleanup; |
| 1685 | } |
| 1686 | |
| 1687 | fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL); |
| 1688 | if (fbdev == NULL) { |
| 1689 | dev_err(&pdev->dev, |
| 1690 | "unable to allocate memory for device info\n"); |
| 1691 | r = -ENOMEM; |
| 1692 | goto cleanup; |
| 1693 | } |
| 1694 | init_state++; |
| 1695 | |
| 1696 | fbdev->dev = &pdev->dev; |
| 1697 | fbdev->panel = panel; |
| 1698 | platform_set_drvdata(pdev, fbdev); |
| 1699 | |
| 1700 | mutex_init(&fbdev->rqueue_mutex); |
| 1701 | |
| 1702 | #ifdef CONFIG_ARCH_OMAP1 |
| 1703 | fbdev->int_ctrl = &omap1_int_ctrl; |
| 1704 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL |
| 1705 | fbdev->ext_if = &omap1_ext_if; |
| 1706 | #endif |
| 1707 | #else /* OMAP2 */ |
| 1708 | fbdev->int_ctrl = &omap2_int_ctrl; |
| 1709 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL |
| 1710 | fbdev->ext_if = &omap2_ext_if; |
| 1711 | #endif |
| 1712 | #endif |
| 1713 | if (omapfb_find_ctrl(fbdev) < 0) { |
| 1714 | dev_err(fbdev->dev, |
| 1715 | "LCD controller not found, board not supported\n"); |
| 1716 | r = -ENODEV; |
| 1717 | goto cleanup; |
| 1718 | } |
| 1719 | |
| 1720 | r = fbdev->panel->init(fbdev->panel, fbdev); |
| 1721 | if (r) |
| 1722 | goto cleanup; |
| 1723 | |
| 1724 | pr_info("omapfb: configured for panel %s\n", fbdev->panel->name); |
| 1725 | |
| 1726 | def_vxres = def_vxres ? : fbdev->panel->x_res; |
| 1727 | def_vyres = def_vyres ? : fbdev->panel->y_res; |
| 1728 | |
| 1729 | init_state++; |
| 1730 | |
| 1731 | r = ctrl_init(fbdev); |
| 1732 | if (r) |
| 1733 | goto cleanup; |
| 1734 | if (fbdev->ctrl->mmap != NULL) |
| 1735 | omapfb_ops.fb_mmap = omapfb_mmap; |
| 1736 | init_state++; |
| 1737 | |
| 1738 | check_required_callbacks(fbdev); |
| 1739 | |
| 1740 | r = planes_init(fbdev); |
| 1741 | if (r) |
| 1742 | goto cleanup; |
| 1743 | init_state++; |
| 1744 | |
| 1745 | #ifdef CONFIG_FB_OMAP_DMA_TUNE |
| 1746 | /* Set DMA priority for EMIFF access to highest */ |
| 1747 | if (cpu_class_is_omap1()) |
| 1748 | omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15); |
| 1749 | #endif |
| 1750 | |
| 1751 | r = ctrl_change_mode(fbdev->fb_info[0]); |
| 1752 | if (r) { |
| 1753 | dev_err(fbdev->dev, "mode setting failed\n"); |
| 1754 | goto cleanup; |
| 1755 | } |
| 1756 | |
| 1757 | /* GFX plane is enabled by default */ |
| 1758 | r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); |
| 1759 | if (r) |
| 1760 | goto cleanup; |
| 1761 | |
| 1762 | omapfb_set_update_mode(fbdev, manual_update ? |
| 1763 | OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE); |
| 1764 | init_state++; |
| 1765 | |
| 1766 | r = fbdev->panel->enable(fbdev->panel); |
| 1767 | if (r) |
| 1768 | goto cleanup; |
| 1769 | init_state++; |
| 1770 | |
| 1771 | r = omapfb_register_sysfs(fbdev); |
| 1772 | if (r) |
| 1773 | goto cleanup; |
| 1774 | init_state++; |
| 1775 | |
| 1776 | vram = 0; |
| 1777 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { |
| 1778 | r = register_framebuffer(fbdev->fb_info[i]); |
| 1779 | if (r != 0) { |
| 1780 | dev_err(fbdev->dev, |
| 1781 | "registering framebuffer %d failed\n", i); |
| 1782 | goto cleanup; |
| 1783 | } |
| 1784 | vram += fbdev->mem_desc.region[i].size; |
| 1785 | } |
| 1786 | |
| 1787 | fbdev->state = OMAPFB_ACTIVE; |
| 1788 | |
| 1789 | panel = fbdev->panel; |
| 1790 | phz = panel->pixel_clock * 1000; |
| 1791 | hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw); |
| 1792 | vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw); |
| 1793 | |
| 1794 | omapfb_dev = fbdev; |
| 1795 | |
| 1796 | pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n", |
| 1797 | vram, fbdev->mem_desc.region_cnt); |
| 1798 | pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz " |
| 1799 | "vfreq %lu.%lu Hz\n", |
| 1800 | phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10); |
| 1801 | |
| 1802 | return 0; |
| 1803 | |
| 1804 | cleanup: |
| 1805 | omapfb_free_resources(fbdev, init_state); |
| 1806 | |
| 1807 | return r; |
| 1808 | } |
| 1809 | |
| 1810 | static int omapfb_probe(struct platform_device *pdev) |
| 1811 | { |
| 1812 | BUG_ON(fbdev_pdev != NULL); |
| 1813 | |
| 1814 | /* Delay actual initialization until the LCD is registered */ |
| 1815 | fbdev_pdev = pdev; |
| 1816 | if (fbdev_panel != NULL) |
| 1817 | omapfb_do_probe(fbdev_pdev, fbdev_panel); |
| 1818 | return 0; |
| 1819 | } |
| 1820 | |
| 1821 | void omapfb_register_panel(struct lcd_panel *panel) |
| 1822 | { |
| 1823 | BUG_ON(fbdev_panel != NULL); |
| 1824 | |
| 1825 | fbdev_panel = panel; |
| 1826 | if (fbdev_pdev != NULL) |
| 1827 | omapfb_do_probe(fbdev_pdev, fbdev_panel); |
| 1828 | } |
| 1829 | |
| 1830 | /* Called when the device is being detached from the driver */ |
| 1831 | static int omapfb_remove(struct platform_device *pdev) |
| 1832 | { |
| 1833 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); |
| 1834 | enum omapfb_state saved_state = fbdev->state; |
| 1835 | |
| 1836 | /* FIXME: wait till completion of pending events */ |
| 1837 | |
| 1838 | fbdev->state = OMAPFB_DISABLED; |
| 1839 | omapfb_free_resources(fbdev, saved_state); |
| 1840 | |
| 1841 | return 0; |
| 1842 | } |
| 1843 | |
| 1844 | /* PM suspend */ |
| 1845 | static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg) |
| 1846 | { |
| 1847 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); |
| 1848 | |
Felipe Contreras | c958557 | 2009-03-31 15:25:42 -0700 | [diff] [blame] | 1849 | omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1850 | |
| 1851 | return 0; |
| 1852 | } |
| 1853 | |
| 1854 | /* PM resume */ |
| 1855 | static int omapfb_resume(struct platform_device *pdev) |
| 1856 | { |
| 1857 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); |
| 1858 | |
Felipe Contreras | c958557 | 2009-03-31 15:25:42 -0700 | [diff] [blame] | 1859 | omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]); |
Imre Deak | 8b08cf2 | 2007-07-17 04:05:54 -0700 | [diff] [blame] | 1860 | return 0; |
| 1861 | } |
| 1862 | |
| 1863 | static struct platform_driver omapfb_driver = { |
| 1864 | .probe = omapfb_probe, |
| 1865 | .remove = omapfb_remove, |
| 1866 | .suspend = omapfb_suspend, |
| 1867 | .resume = omapfb_resume, |
| 1868 | .driver = { |
| 1869 | .name = MODULE_NAME, |
| 1870 | .owner = THIS_MODULE, |
| 1871 | }, |
| 1872 | }; |
| 1873 | |
| 1874 | #ifndef MODULE |
| 1875 | |
| 1876 | /* Process kernel command line parameters */ |
| 1877 | static int __init omapfb_setup(char *options) |
| 1878 | { |
| 1879 | char *this_opt = NULL; |
| 1880 | int r = 0; |
| 1881 | |
| 1882 | pr_debug("omapfb: options %s\n", options); |
| 1883 | |
| 1884 | if (!options || !*options) |
| 1885 | return 0; |
| 1886 | |
| 1887 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { |
| 1888 | if (!strncmp(this_opt, "accel", 5)) |
| 1889 | def_accel = 1; |
| 1890 | else if (!strncmp(this_opt, "vram:", 5)) { |
| 1891 | char *suffix; |
| 1892 | unsigned long vram; |
| 1893 | vram = (simple_strtoul(this_opt + 5, &suffix, 0)); |
| 1894 | switch (suffix[0]) { |
| 1895 | case '\0': |
| 1896 | break; |
| 1897 | case 'm': |
| 1898 | case 'M': |
| 1899 | vram *= 1024; |
| 1900 | /* Fall through */ |
| 1901 | case 'k': |
| 1902 | case 'K': |
| 1903 | vram *= 1024; |
| 1904 | break; |
| 1905 | default: |
| 1906 | pr_debug("omapfb: invalid vram suffix %c\n", |
| 1907 | suffix[0]); |
| 1908 | r = -1; |
| 1909 | } |
| 1910 | def_vram[def_vram_cnt++] = vram; |
| 1911 | } |
| 1912 | else if (!strncmp(this_opt, "vxres:", 6)) |
| 1913 | def_vxres = simple_strtoul(this_opt + 6, NULL, 0); |
| 1914 | else if (!strncmp(this_opt, "vyres:", 6)) |
| 1915 | def_vyres = simple_strtoul(this_opt + 6, NULL, 0); |
| 1916 | else if (!strncmp(this_opt, "rotate:", 7)) |
| 1917 | def_rotate = (simple_strtoul(this_opt + 7, NULL, 0)); |
| 1918 | else if (!strncmp(this_opt, "mirror:", 7)) |
| 1919 | def_mirror = (simple_strtoul(this_opt + 7, NULL, 0)); |
| 1920 | else if (!strncmp(this_opt, "manual_update", 13)) |
| 1921 | manual_update = 1; |
| 1922 | else { |
| 1923 | pr_debug("omapfb: invalid option\n"); |
| 1924 | r = -1; |
| 1925 | } |
| 1926 | } |
| 1927 | |
| 1928 | return r; |
| 1929 | } |
| 1930 | |
| 1931 | #endif |
| 1932 | |
| 1933 | /* Register both the driver and the device */ |
| 1934 | static int __init omapfb_init(void) |
| 1935 | { |
| 1936 | #ifndef MODULE |
| 1937 | char *option; |
| 1938 | |
| 1939 | if (fb_get_options("omapfb", &option)) |
| 1940 | return -ENODEV; |
| 1941 | omapfb_setup(option); |
| 1942 | #endif |
| 1943 | /* Register the driver with LDM */ |
| 1944 | if (platform_driver_register(&omapfb_driver)) { |
| 1945 | pr_debug("failed to register omapfb driver\n"); |
| 1946 | return -ENODEV; |
| 1947 | } |
| 1948 | |
| 1949 | return 0; |
| 1950 | } |
| 1951 | |
| 1952 | static void __exit omapfb_cleanup(void) |
| 1953 | { |
| 1954 | platform_driver_unregister(&omapfb_driver); |
| 1955 | } |
| 1956 | |
| 1957 | module_param_named(accel, def_accel, uint, 0664); |
| 1958 | module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664); |
| 1959 | module_param_named(vxres, def_vxres, long, 0664); |
| 1960 | module_param_named(vyres, def_vyres, long, 0664); |
| 1961 | module_param_named(rotate, def_rotate, uint, 0664); |
| 1962 | module_param_named(mirror, def_mirror, uint, 0664); |
| 1963 | module_param_named(manual_update, manual_update, bool, 0664); |
| 1964 | |
| 1965 | module_init(omapfb_init); |
| 1966 | module_exit(omapfb_cleanup); |
| 1967 | |
| 1968 | MODULE_DESCRIPTION("TI OMAP framebuffer driver"); |
| 1969 | MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>"); |
| 1970 | MODULE_LICENSE("GPL"); |