omapfb-ioctl.c 19 KB

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  1. /*
  2. * linux/drivers/video/omap2/omapfb-ioctl.c
  3. *
  4. * Copyright (C) 2008 Nokia Corporation
  5. * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
  6. *
  7. * Some code and ideas taken from drivers/video/omap/ driver
  8. * by Imre Deak.
  9. *
  10. * This program is free software; you can redistribute it and/or modify it
  11. * under the terms of the GNU General Public License version 2 as published by
  12. * the Free Software Foundation.
  13. *
  14. * This program is distributed in the hope that it will be useful, but WITHOUT
  15. * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16. * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  17. * more details.
  18. *
  19. * You should have received a copy of the GNU General Public License along with
  20. * this program. If not, see <http://www.gnu.org/licenses/>.
  21. */
  22. #include <linux/fb.h>
  23. #include <linux/device.h>
  24. #include <linux/uaccess.h>
  25. #include <linux/platform_device.h>
  26. #include <linux/mm.h>
  27. #include <linux/omapfb.h>
  28. #include <linux/vmalloc.h>
  29. #include <linux/export.h>
  30. #include <video/omapdss.h>
  31. #include <video/omapvrfb.h>
  32. #include "omapfb.h"
  33. static u8 get_mem_idx(struct omapfb_info *ofbi)
  34. {
  35. if (ofbi->id == ofbi->region->id)
  36. return 0;
  37. return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
  38. }
  39. static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
  40. u8 mem_idx)
  41. {
  42. struct omapfb2_device *fbdev = ofbi->fbdev;
  43. if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
  44. mem_idx &= OMAPFB_MEM_IDX_MASK;
  45. else
  46. mem_idx = ofbi->id;
  47. if (mem_idx >= fbdev->num_fbs)
  48. return NULL;
  49. return &fbdev->regions[mem_idx];
  50. }
  51. static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
  52. {
  53. struct omapfb_info *ofbi = FB2OFB(fbi);
  54. struct omapfb2_device *fbdev = ofbi->fbdev;
  55. struct omap_overlay *ovl;
  56. struct omap_overlay_info old_info;
  57. struct omapfb2_mem_region *old_rg, *new_rg;
  58. int r = 0;
  59. DBG("omapfb_setup_plane\n");
  60. if (ofbi->num_overlays == 0) {
  61. r = -EINVAL;
  62. goto out;
  63. }
  64. /* XXX uses only the first overlay */
  65. ovl = ofbi->overlays[0];
  66. old_rg = ofbi->region;
  67. new_rg = get_mem_region(ofbi, pi->mem_idx);
  68. if (!new_rg) {
  69. r = -EINVAL;
  70. goto out;
  71. }
  72. /* Take the locks in a specific order to keep lockdep happy */
  73. if (old_rg->id < new_rg->id) {
  74. omapfb_get_mem_region(old_rg);
  75. omapfb_get_mem_region(new_rg);
  76. } else if (new_rg->id < old_rg->id) {
  77. omapfb_get_mem_region(new_rg);
  78. omapfb_get_mem_region(old_rg);
  79. } else
  80. omapfb_get_mem_region(old_rg);
  81. if (pi->enabled && !new_rg->size) {
  82. /*
  83. * This plane's memory was freed, can't enable it
  84. * until it's reallocated.
  85. */
  86. r = -EINVAL;
  87. goto put_mem;
  88. }
  89. ovl->get_overlay_info(ovl, &old_info);
  90. if (old_rg != new_rg) {
  91. ofbi->region = new_rg;
  92. set_fb_fix(fbi);
  93. }
  94. if (!pi->enabled) {
  95. r = ovl->disable(ovl);
  96. if (r)
  97. goto undo;
  98. }
  99. if (pi->enabled) {
  100. r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
  101. pi->out_width, pi->out_height);
  102. if (r)
  103. goto undo;
  104. } else {
  105. struct omap_overlay_info info;
  106. ovl->get_overlay_info(ovl, &info);
  107. info.pos_x = pi->pos_x;
  108. info.pos_y = pi->pos_y;
  109. info.out_width = pi->out_width;
  110. info.out_height = pi->out_height;
  111. r = ovl->set_overlay_info(ovl, &info);
  112. if (r)
  113. goto undo;
  114. }
  115. if (ovl->manager)
  116. ovl->manager->apply(ovl->manager);
  117. if (pi->enabled) {
  118. r = ovl->enable(ovl);
  119. if (r)
  120. goto undo;
  121. }
  122. /* Release the locks in a specific order to keep lockdep happy */
  123. if (old_rg->id > new_rg->id) {
  124. omapfb_put_mem_region(old_rg);
  125. omapfb_put_mem_region(new_rg);
  126. } else if (new_rg->id > old_rg->id) {
  127. omapfb_put_mem_region(new_rg);
  128. omapfb_put_mem_region(old_rg);
  129. } else
  130. omapfb_put_mem_region(old_rg);
  131. return 0;
  132. undo:
  133. if (old_rg != new_rg) {
  134. ofbi->region = old_rg;
  135. set_fb_fix(fbi);
  136. }
  137. ovl->set_overlay_info(ovl, &old_info);
  138. put_mem:
  139. /* Release the locks in a specific order to keep lockdep happy */
  140. if (old_rg->id > new_rg->id) {
  141. omapfb_put_mem_region(old_rg);
  142. omapfb_put_mem_region(new_rg);
  143. } else if (new_rg->id > old_rg->id) {
  144. omapfb_put_mem_region(new_rg);
  145. omapfb_put_mem_region(old_rg);
  146. } else
  147. omapfb_put_mem_region(old_rg);
  148. out:
  149. dev_err(fbdev->dev, "setup_plane failed\n");
  150. return r;
  151. }
  152. static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
  153. {
  154. struct omapfb_info *ofbi = FB2OFB(fbi);
  155. if (ofbi->num_overlays == 0) {
  156. memset(pi, 0, sizeof(*pi));
  157. } else {
  158. struct omap_overlay *ovl;
  159. struct omap_overlay_info ovli;
  160. ovl = ofbi->overlays[0];
  161. ovl->get_overlay_info(ovl, &ovli);
  162. pi->pos_x = ovli.pos_x;
  163. pi->pos_y = ovli.pos_y;
  164. pi->enabled = ovl->is_enabled(ovl);
  165. pi->channel_out = 0; /* xxx */
  166. pi->mirror = 0;
  167. pi->mem_idx = get_mem_idx(ofbi);
  168. pi->out_width = ovli.out_width;
  169. pi->out_height = ovli.out_height;
  170. }
  171. return 0;
  172. }
  173. static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
  174. {
  175. struct omapfb_info *ofbi = FB2OFB(fbi);
  176. struct omapfb2_device *fbdev = ofbi->fbdev;
  177. struct omapfb2_mem_region *rg;
  178. int r = 0, i;
  179. size_t size;
  180. if (mi->type != OMAPFB_MEMTYPE_SDRAM)
  181. return -EINVAL;
  182. size = PAGE_ALIGN(mi->size);
  183. rg = ofbi->region;
  184. down_write_nested(&rg->lock, rg->id);
  185. atomic_inc(&rg->lock_count);
  186. if (rg->size == size && rg->type == mi->type)
  187. goto out;
  188. if (atomic_read(&rg->map_count)) {
  189. r = -EBUSY;
  190. goto out;
  191. }
  192. for (i = 0; i < fbdev->num_fbs; i++) {
  193. struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
  194. int j;
  195. if (ofbi2->region != rg)
  196. continue;
  197. for (j = 0; j < ofbi2->num_overlays; j++) {
  198. struct omap_overlay *ovl;
  199. ovl = ofbi2->overlays[j];
  200. if (ovl->is_enabled(ovl)) {
  201. r = -EBUSY;
  202. goto out;
  203. }
  204. }
  205. }
  206. r = omapfb_realloc_fbmem(fbi, size, mi->type);
  207. if (r) {
  208. dev_err(fbdev->dev, "realloc fbmem failed\n");
  209. goto out;
  210. }
  211. out:
  212. atomic_dec(&rg->lock_count);
  213. up_write(&rg->lock);
  214. return r;
  215. }
  216. static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
  217. {
  218. struct omapfb_info *ofbi = FB2OFB(fbi);
  219. struct omapfb2_mem_region *rg;
  220. rg = omapfb_get_mem_region(ofbi->region);
  221. memset(mi, 0, sizeof(*mi));
  222. mi->size = rg->size;
  223. mi->type = rg->type;
  224. omapfb_put_mem_region(rg);
  225. return 0;
  226. }
  227. static int omapfb_update_window_nolock(struct fb_info *fbi,
  228. u32 x, u32 y, u32 w, u32 h)
  229. {
  230. struct omap_dss_device *display = fb2display(fbi);
  231. u16 dw, dh;
  232. if (!display)
  233. return 0;
  234. if (w == 0 || h == 0)
  235. return 0;
  236. display->driver->get_resolution(display, &dw, &dh);
  237. if (x + w > dw || y + h > dh)
  238. return -EINVAL;
  239. return display->driver->update(display, x, y, w, h);
  240. }
  241. /* This function is exported for SGX driver use */
  242. int omapfb_update_window(struct fb_info *fbi,
  243. u32 x, u32 y, u32 w, u32 h)
  244. {
  245. struct omapfb_info *ofbi = FB2OFB(fbi);
  246. struct omapfb2_device *fbdev = ofbi->fbdev;
  247. int r;
  248. if (!lock_fb_info(fbi))
  249. return -ENODEV;
  250. omapfb_lock(fbdev);
  251. r = omapfb_update_window_nolock(fbi, x, y, w, h);
  252. omapfb_unlock(fbdev);
  253. unlock_fb_info(fbi);
  254. return r;
  255. }
  256. EXPORT_SYMBOL(omapfb_update_window);
  257. int omapfb_set_update_mode(struct fb_info *fbi,
  258. enum omapfb_update_mode mode)
  259. {
  260. struct omap_dss_device *display = fb2display(fbi);
  261. struct omapfb_info *ofbi = FB2OFB(fbi);
  262. struct omapfb2_device *fbdev = ofbi->fbdev;
  263. struct omapfb_display_data *d;
  264. int r;
  265. if (!display)
  266. return -EINVAL;
  267. if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
  268. return -EINVAL;
  269. omapfb_lock(fbdev);
  270. d = get_display_data(fbdev, display);
  271. if (d->update_mode == mode) {
  272. omapfb_unlock(fbdev);
  273. return 0;
  274. }
  275. r = 0;
  276. if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
  277. if (mode == OMAPFB_AUTO_UPDATE)
  278. omapfb_start_auto_update(fbdev, display);
  279. else /* MANUAL_UPDATE */
  280. omapfb_stop_auto_update(fbdev, display);
  281. d->update_mode = mode;
  282. } else { /* AUTO_UPDATE */
  283. if (mode == OMAPFB_MANUAL_UPDATE)
  284. r = -EINVAL;
  285. }
  286. omapfb_unlock(fbdev);
  287. return r;
  288. }
  289. int omapfb_get_update_mode(struct fb_info *fbi,
  290. enum omapfb_update_mode *mode)
  291. {
  292. struct omap_dss_device *display = fb2display(fbi);
  293. struct omapfb_info *ofbi = FB2OFB(fbi);
  294. struct omapfb2_device *fbdev = ofbi->fbdev;
  295. struct omapfb_display_data *d;
  296. if (!display)
  297. return -EINVAL;
  298. omapfb_lock(fbdev);
  299. d = get_display_data(fbdev, display);
  300. *mode = d->update_mode;
  301. omapfb_unlock(fbdev);
  302. return 0;
  303. }
  304. /* XXX this color key handling is a hack... */
  305. static struct omapfb_color_key omapfb_color_keys[2];
  306. static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
  307. struct omapfb_color_key *ck)
  308. {
  309. struct omap_overlay_manager_info info;
  310. enum omap_dss_trans_key_type kt;
  311. int r;
  312. mgr->get_manager_info(mgr, &info);
  313. if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
  314. info.trans_enabled = false;
  315. omapfb_color_keys[mgr->id] = *ck;
  316. r = mgr->set_manager_info(mgr, &info);
  317. if (r)
  318. return r;
  319. r = mgr->apply(mgr);
  320. return r;
  321. }
  322. switch (ck->key_type) {
  323. case OMAPFB_COLOR_KEY_GFX_DST:
  324. kt = OMAP_DSS_COLOR_KEY_GFX_DST;
  325. break;
  326. case OMAPFB_COLOR_KEY_VID_SRC:
  327. kt = OMAP_DSS_COLOR_KEY_VID_SRC;
  328. break;
  329. default:
  330. return -EINVAL;
  331. }
  332. info.default_color = ck->background;
  333. info.trans_key = ck->trans_key;
  334. info.trans_key_type = kt;
  335. info.trans_enabled = true;
  336. omapfb_color_keys[mgr->id] = *ck;
  337. r = mgr->set_manager_info(mgr, &info);
  338. if (r)
  339. return r;
  340. r = mgr->apply(mgr);
  341. return r;
  342. }
  343. static int omapfb_set_color_key(struct fb_info *fbi,
  344. struct omapfb_color_key *ck)
  345. {
  346. struct omapfb_info *ofbi = FB2OFB(fbi);
  347. struct omapfb2_device *fbdev = ofbi->fbdev;
  348. int r;
  349. int i;
  350. struct omap_overlay_manager *mgr = NULL;
  351. omapfb_lock(fbdev);
  352. for (i = 0; i < ofbi->num_overlays; i++) {
  353. if (ofbi->overlays[i]->manager) {
  354. mgr = ofbi->overlays[i]->manager;
  355. break;
  356. }
  357. }
  358. if (!mgr) {
  359. r = -EINVAL;
  360. goto err;
  361. }
  362. r = _omapfb_set_color_key(mgr, ck);
  363. err:
  364. omapfb_unlock(fbdev);
  365. return r;
  366. }
  367. static int omapfb_get_color_key(struct fb_info *fbi,
  368. struct omapfb_color_key *ck)
  369. {
  370. struct omapfb_info *ofbi = FB2OFB(fbi);
  371. struct omapfb2_device *fbdev = ofbi->fbdev;
  372. struct omap_overlay_manager *mgr = NULL;
  373. int r = 0;
  374. int i;
  375. omapfb_lock(fbdev);
  376. for (i = 0; i < ofbi->num_overlays; i++) {
  377. if (ofbi->overlays[i]->manager) {
  378. mgr = ofbi->overlays[i]->manager;
  379. break;
  380. }
  381. }
  382. if (!mgr) {
  383. r = -EINVAL;
  384. goto err;
  385. }
  386. *ck = omapfb_color_keys[mgr->id];
  387. err:
  388. omapfb_unlock(fbdev);
  389. return r;
  390. }
  391. static int omapfb_memory_read(struct fb_info *fbi,
  392. struct omapfb_memory_read *mr)
  393. {
  394. struct omap_dss_device *display = fb2display(fbi);
  395. void *buf;
  396. int r;
  397. if (!display || !display->driver->memory_read)
  398. return -ENOENT;
  399. if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
  400. return -EFAULT;
  401. if (mr->w * mr->h * 3 > mr->buffer_size)
  402. return -EINVAL;
  403. buf = vmalloc(mr->buffer_size);
  404. if (!buf) {
  405. DBG("vmalloc failed\n");
  406. return -ENOMEM;
  407. }
  408. r = display->driver->memory_read(display, buf, mr->buffer_size,
  409. mr->x, mr->y, mr->w, mr->h);
  410. if (r > 0) {
  411. if (copy_to_user(mr->buffer, buf, mr->buffer_size))
  412. r = -EFAULT;
  413. }
  414. vfree(buf);
  415. return r;
  416. }
  417. static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
  418. struct omapfb_ovl_colormode *mode)
  419. {
  420. int ovl_idx = mode->overlay_idx;
  421. int mode_idx = mode->mode_idx;
  422. struct omap_overlay *ovl;
  423. enum omap_color_mode supported_modes;
  424. struct fb_var_screeninfo var;
  425. int i;
  426. if (ovl_idx >= fbdev->num_overlays)
  427. return -ENODEV;
  428. ovl = fbdev->overlays[ovl_idx];
  429. supported_modes = ovl->supported_modes;
  430. mode_idx = mode->mode_idx;
  431. for (i = 0; i < sizeof(supported_modes) * 8; i++) {
  432. if (!(supported_modes & (1 << i)))
  433. continue;
  434. /*
  435. * It's possible that the FB doesn't support a mode
  436. * that is supported by the overlay, so call the
  437. * following here.
  438. */
  439. if (dss_mode_to_fb_mode(1 << i, &var) < 0)
  440. continue;
  441. mode_idx--;
  442. if (mode_idx < 0)
  443. break;
  444. }
  445. if (i == sizeof(supported_modes) * 8)
  446. return -ENOENT;
  447. mode->bits_per_pixel = var.bits_per_pixel;
  448. mode->nonstd = var.nonstd;
  449. mode->red = var.red;
  450. mode->green = var.green;
  451. mode->blue = var.blue;
  452. mode->transp = var.transp;
  453. return 0;
  454. }
  455. static int omapfb_wait_for_go(struct fb_info *fbi)
  456. {
  457. struct omapfb_info *ofbi = FB2OFB(fbi);
  458. int r = 0;
  459. int i;
  460. for (i = 0; i < ofbi->num_overlays; ++i) {
  461. struct omap_overlay *ovl = ofbi->overlays[i];
  462. r = ovl->wait_for_go(ovl);
  463. if (r)
  464. break;
  465. }
  466. return r;
  467. }
  468. int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
  469. {
  470. struct omapfb_info *ofbi = FB2OFB(fbi);
  471. struct omapfb2_device *fbdev = ofbi->fbdev;
  472. struct omap_dss_device *display = fb2display(fbi);
  473. struct omap_overlay_manager *mgr;
  474. union {
  475. struct omapfb_update_window_old uwnd_o;
  476. struct omapfb_update_window uwnd;
  477. struct omapfb_plane_info plane_info;
  478. struct omapfb_caps caps;
  479. struct omapfb_mem_info mem_info;
  480. struct omapfb_color_key color_key;
  481. struct omapfb_ovl_colormode ovl_colormode;
  482. enum omapfb_update_mode update_mode;
  483. int test_num;
  484. struct omapfb_memory_read memory_read;
  485. struct omapfb_vram_info vram_info;
  486. struct omapfb_tearsync_info tearsync_info;
  487. struct omapfb_display_info display_info;
  488. u32 crt;
  489. } p;
  490. int r = 0;
  491. switch (cmd) {
  492. case OMAPFB_SYNC_GFX:
  493. DBG("ioctl SYNC_GFX\n");
  494. if (!display || !display->driver->sync) {
  495. /* DSS1 never returns an error here, so we neither */
  496. /*r = -EINVAL;*/
  497. break;
  498. }
  499. r = display->driver->sync(display);
  500. break;
  501. case OMAPFB_UPDATE_WINDOW_OLD:
  502. DBG("ioctl UPDATE_WINDOW_OLD\n");
  503. if (!display || !display->driver->update) {
  504. r = -EINVAL;
  505. break;
  506. }
  507. if (copy_from_user(&p.uwnd_o,
  508. (void __user *)arg,
  509. sizeof(p.uwnd_o))) {
  510. r = -EFAULT;
  511. break;
  512. }
  513. r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
  514. p.uwnd_o.width, p.uwnd_o.height);
  515. break;
  516. case OMAPFB_UPDATE_WINDOW:
  517. DBG("ioctl UPDATE_WINDOW\n");
  518. if (!display || !display->driver->update) {
  519. r = -EINVAL;
  520. break;
  521. }
  522. if (copy_from_user(&p.uwnd, (void __user *)arg,
  523. sizeof(p.uwnd))) {
  524. r = -EFAULT;
  525. break;
  526. }
  527. r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
  528. p.uwnd.width, p.uwnd.height);
  529. break;
  530. case OMAPFB_SETUP_PLANE:
  531. DBG("ioctl SETUP_PLANE\n");
  532. if (copy_from_user(&p.plane_info, (void __user *)arg,
  533. sizeof(p.plane_info)))
  534. r = -EFAULT;
  535. else
  536. r = omapfb_setup_plane(fbi, &p.plane_info);
  537. break;
  538. case OMAPFB_QUERY_PLANE:
  539. DBG("ioctl QUERY_PLANE\n");
  540. r = omapfb_query_plane(fbi, &p.plane_info);
  541. if (r < 0)
  542. break;
  543. if (copy_to_user((void __user *)arg, &p.plane_info,
  544. sizeof(p.plane_info)))
  545. r = -EFAULT;
  546. break;
  547. case OMAPFB_SETUP_MEM:
  548. DBG("ioctl SETUP_MEM\n");
  549. if (copy_from_user(&p.mem_info, (void __user *)arg,
  550. sizeof(p.mem_info)))
  551. r = -EFAULT;
  552. else
  553. r = omapfb_setup_mem(fbi, &p.mem_info);
  554. break;
  555. case OMAPFB_QUERY_MEM:
  556. DBG("ioctl QUERY_MEM\n");
  557. r = omapfb_query_mem(fbi, &p.mem_info);
  558. if (r < 0)
  559. break;
  560. if (copy_to_user((void __user *)arg, &p.mem_info,
  561. sizeof(p.mem_info)))
  562. r = -EFAULT;
  563. break;
  564. case OMAPFB_GET_CAPS:
  565. DBG("ioctl GET_CAPS\n");
  566. if (!display) {
  567. r = -EINVAL;
  568. break;
  569. }
  570. memset(&p.caps, 0, sizeof(p.caps));
  571. if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
  572. p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
  573. if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
  574. p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
  575. if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
  576. r = -EFAULT;
  577. break;
  578. case OMAPFB_GET_OVERLAY_COLORMODE:
  579. DBG("ioctl GET_OVERLAY_COLORMODE\n");
  580. if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
  581. sizeof(p.ovl_colormode))) {
  582. r = -EFAULT;
  583. break;
  584. }
  585. r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
  586. if (r < 0)
  587. break;
  588. if (copy_to_user((void __user *)arg, &p.ovl_colormode,
  589. sizeof(p.ovl_colormode)))
  590. r = -EFAULT;
  591. break;
  592. case OMAPFB_SET_UPDATE_MODE:
  593. DBG("ioctl SET_UPDATE_MODE\n");
  594. if (get_user(p.update_mode, (int __user *)arg))
  595. r = -EFAULT;
  596. else
  597. r = omapfb_set_update_mode(fbi, p.update_mode);
  598. break;
  599. case OMAPFB_GET_UPDATE_MODE:
  600. DBG("ioctl GET_UPDATE_MODE\n");
  601. r = omapfb_get_update_mode(fbi, &p.update_mode);
  602. if (r)
  603. break;
  604. if (put_user(p.update_mode,
  605. (enum omapfb_update_mode __user *)arg))
  606. r = -EFAULT;
  607. break;
  608. case OMAPFB_SET_COLOR_KEY:
  609. DBG("ioctl SET_COLOR_KEY\n");
  610. if (copy_from_user(&p.color_key, (void __user *)arg,
  611. sizeof(p.color_key)))
  612. r = -EFAULT;
  613. else
  614. r = omapfb_set_color_key(fbi, &p.color_key);
  615. break;
  616. case OMAPFB_GET_COLOR_KEY:
  617. DBG("ioctl GET_COLOR_KEY\n");
  618. r = omapfb_get_color_key(fbi, &p.color_key);
  619. if (r)
  620. break;
  621. if (copy_to_user((void __user *)arg, &p.color_key,
  622. sizeof(p.color_key)))
  623. r = -EFAULT;
  624. break;
  625. case FBIO_WAITFORVSYNC:
  626. if (get_user(p.crt, (__u32 __user *)arg)) {
  627. r = -EFAULT;
  628. break;
  629. }
  630. if (p.crt != 0) {
  631. r = -ENODEV;
  632. break;
  633. }
  634. /* FALLTHROUGH */
  635. case OMAPFB_WAITFORVSYNC:
  636. DBG("ioctl WAITFORVSYNC\n");
  637. if (!display && !display->output && !display->output->manager) {
  638. r = -EINVAL;
  639. break;
  640. }
  641. mgr = display->output->manager;
  642. r = mgr->wait_for_vsync(mgr);
  643. break;
  644. case OMAPFB_WAITFORGO:
  645. DBG("ioctl WAITFORGO\n");
  646. if (!display) {
  647. r = -EINVAL;
  648. break;
  649. }
  650. r = omapfb_wait_for_go(fbi);
  651. break;
  652. /* LCD and CTRL tests do the same thing for backward
  653. * compatibility */
  654. case OMAPFB_LCD_TEST:
  655. DBG("ioctl LCD_TEST\n");
  656. if (get_user(p.test_num, (int __user *)arg)) {
  657. r = -EFAULT;
  658. break;
  659. }
  660. if (!display || !display->driver->run_test) {
  661. r = -EINVAL;
  662. break;
  663. }
  664. r = display->driver->run_test(display, p.test_num);
  665. break;
  666. case OMAPFB_CTRL_TEST:
  667. DBG("ioctl CTRL_TEST\n");
  668. if (get_user(p.test_num, (int __user *)arg)) {
  669. r = -EFAULT;
  670. break;
  671. }
  672. if (!display || !display->driver->run_test) {
  673. r = -EINVAL;
  674. break;
  675. }
  676. r = display->driver->run_test(display, p.test_num);
  677. break;
  678. case OMAPFB_MEMORY_READ:
  679. DBG("ioctl MEMORY_READ\n");
  680. if (copy_from_user(&p.memory_read, (void __user *)arg,
  681. sizeof(p.memory_read))) {
  682. r = -EFAULT;
  683. break;
  684. }
  685. r = omapfb_memory_read(fbi, &p.memory_read);
  686. break;
  687. case OMAPFB_GET_VRAM_INFO: {
  688. DBG("ioctl GET_VRAM_INFO\n");
  689. /*
  690. * We don't have the ability to get this vram info anymore.
  691. * Fill in something that should keep the applications working.
  692. */
  693. p.vram_info.total = SZ_1M * 64;
  694. p.vram_info.free = SZ_1M * 64;
  695. p.vram_info.largest_free_block = SZ_1M * 64;
  696. if (copy_to_user((void __user *)arg, &p.vram_info,
  697. sizeof(p.vram_info)))
  698. r = -EFAULT;
  699. break;
  700. }
  701. case OMAPFB_SET_TEARSYNC: {
  702. DBG("ioctl SET_TEARSYNC\n");
  703. if (copy_from_user(&p.tearsync_info, (void __user *)arg,
  704. sizeof(p.tearsync_info))) {
  705. r = -EFAULT;
  706. break;
  707. }
  708. if (!display || !display->driver->enable_te) {
  709. r = -ENODEV;
  710. break;
  711. }
  712. r = display->driver->enable_te(display,
  713. !!p.tearsync_info.enabled);
  714. break;
  715. }
  716. case OMAPFB_GET_DISPLAY_INFO: {
  717. u16 xres, yres;
  718. DBG("ioctl GET_DISPLAY_INFO\n");
  719. if (display == NULL) {
  720. r = -ENODEV;
  721. break;
  722. }
  723. display->driver->get_resolution(display, &xres, &yres);
  724. p.display_info.xres = xres;
  725. p.display_info.yres = yres;
  726. if (display->driver->get_dimensions) {
  727. u32 w, h;
  728. display->driver->get_dimensions(display, &w, &h);
  729. p.display_info.width = w;
  730. p.display_info.height = h;
  731. } else {
  732. p.display_info.width = 0;
  733. p.display_info.height = 0;
  734. }
  735. if (copy_to_user((void __user *)arg, &p.display_info,
  736. sizeof(p.display_info)))
  737. r = -EFAULT;
  738. break;
  739. }
  740. default:
  741. dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
  742. r = -EINVAL;
  743. }
  744. if (r < 0)
  745. DBG("ioctl failed: %d\n", r);
  746. return r;
  747. }