aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2013-11-15 03:28:39 -0500
committerLinus Walleij <linus.walleij@linaro.org>2013-11-26 15:01:56 -0500
commitfda989c0b51a563d23d3cf3d4c20dd3405268644 (patch)
tree99afa58955cf8dd74bac389638f65b88e2b30109
parent279571358df1e3f9788f1095d73b777fdb68c7e0 (diff)
ARM: ux500: drop STM pinmap settings
The pin mappings for the STM (System Trace Macrocell) are not really used by anything: we have no driver for is and the settings are not connected to any device. We can recreate the different mux outputs in the device tree the day we need them. Drop these for now. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat
-rw-r--r--arch/arm/mach-ux500/board-mop500-pins.c200
1 files changed, 0 insertions, 200 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-pins.c b/arch/arm/mach-ux500/board-mop500-pins.c
index 07ddb89a6dbe..c311d11d6c3d 100644
--- a/arch/arm/mach-ux500/board-mop500-pins.c
+++ b/arch/arm/mach-ux500/board-mop500-pins.c
@@ -27,7 +27,6 @@ static enum custom_pin_cfg_t pinsfor;
27#define BIAS(a,b) static unsigned long a[] = { b } 27#define BIAS(a,b) static unsigned long a[] = { b }
28 28
29BIAS(pd, PIN_PULL_DOWN); 29BIAS(pd, PIN_PULL_DOWN);
30BIAS(in_nopull, PIN_INPUT_NOPULL);
31BIAS(in_pu, PIN_INPUT_PULLUP); 30BIAS(in_pu, PIN_INPUT_PULLUP);
32BIAS(in_pd, PIN_INPUT_PULLDOWN); 31BIAS(in_pd, PIN_INPUT_PULLDOWN);
33BIAS(out_lo, PIN_OUTPUT_LOW); 32BIAS(out_lo, PIN_OUTPUT_LOW);
@@ -43,15 +42,6 @@ BIAS(gpio_in_pu_slpm_gpio_nopull, PIN_INPUT_PULLUP|PIN_GPIOMODE_ENABLED|PIN_SLPM
43BIAS(gpio_in_pd_slpm_gpio_nopull, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED|PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL); 42BIAS(gpio_in_pd_slpm_gpio_nopull, PIN_INPUT_PULLDOWN|PIN_GPIOMODE_ENABLED|PIN_SLPM_GPIO|PIN_SLPM_INPUT_NOPULL);
44BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED); 43BIAS(gpio_out_hi, PIN_OUTPUT_HIGH|PIN_GPIOMODE_ENABLED);
45BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED); 44BIAS(gpio_out_lo, PIN_OUTPUT_LOW|PIN_GPIOMODE_ENABLED);
46/* Sleep modes */
47BIAS(slpm_in_wkup_pdis, PIN_SLEEPMODE_ENABLED|
48 PIN_SLPM_DIR_INPUT|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED);
49BIAS(slpm_out_lo_pdis, PIN_SLEEPMODE_ENABLED|
50 PIN_SLPM_OUTPUT_LOW|PIN_SLPM_WAKEUP_DISABLE|PIN_SLPM_PDIS_DISABLED);
51BIAS(slpm_out_lo_wkup_pdis, PIN_SLEEPMODE_ENABLED|
52 PIN_SLPM_OUTPUT_LOW|PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_DISABLED);
53BIAS(slpm_in_pu_wkup_pdis_en, PIN_SLEEPMODE_ENABLED|PIN_SLPM_INPUT_PULLUP|
54 PIN_SLPM_WAKEUP_ENABLE|PIN_SLPM_PDIS_ENABLED);
55 45
56/* We use these to define hog settings that are always done on boot */ 46/* We use these to define hog settings that are always done on boot */
57#define DB8500_MUX_HOG(group,func) \ 47#define DB8500_MUX_HOG(group,func) \
@@ -321,190 +311,6 @@ static struct pinctrl_map __initdata ab8505_pinmap[] = {
321 AB8505_PIN_HOG("GPIO53_D15", in_pd), 311 AB8505_PIN_HOG("GPIO53_D15", in_pd),
322}; 312};
323 313
324/* Pin control settings */
325static struct pinctrl_map __initdata mop500_family_pinmap[] = {
326 /* STM APE pins states */
327 DB8500_MUX_STATE("stmape_c_1", "stmape",
328 "stm", "ape_mipi34"),
329 DB8500_PIN_STATE("GPIO70_G5", in_nopull,
330 "stm", "ape_mipi34"), /* clk */
331 DB8500_PIN_STATE("GPIO71_G4", in_nopull,
332 "stm", "ape_mipi34"), /* dat3 */
333 DB8500_PIN_STATE("GPIO72_H4", in_nopull,
334 "stm", "ape_mipi34"), /* dat2 */
335 DB8500_PIN_STATE("GPIO73_H3", in_nopull,
336 "stm", "ape_mipi34"), /* dat1 */
337 DB8500_PIN_STATE("GPIO74_J3", in_nopull,
338 "stm", "ape_mipi34"), /* dat0 */
339
340 DB8500_PIN_STATE("GPIO70_G5", slpm_out_lo_pdis,
341 "stm", "ape_mipi34_sleep"), /* clk */
342 DB8500_PIN_STATE("GPIO71_G4", slpm_out_lo_pdis,
343 "stm", "ape_mipi34_sleep"), /* dat3 */
344 DB8500_PIN_STATE("GPIO72_H4", slpm_out_lo_pdis,
345 "stm", "ape_mipi34_sleep"), /* dat2 */
346 DB8500_PIN_STATE("GPIO73_H3", slpm_out_lo_pdis,
347 "stm", "ape_mipi34_sleep"), /* dat1 */
348 DB8500_PIN_STATE("GPIO74_J3", slpm_out_lo_pdis,
349 "stm", "ape_mipi34_sleep"), /* dat0 */
350
351 DB8500_MUX_STATE("stmape_oc1_1", "stmape",
352 "stm", "ape_microsd"),
353 DB8500_PIN_STATE("GPIO23_AA4", in_nopull,
354 "stm", "ape_microsd"), /* clk */
355 DB8500_PIN_STATE("GPIO25_Y4", in_nopull,
356 "stm", "ape_microsd"), /* dat0 */
357 DB8500_PIN_STATE("GPIO26_Y2", in_nopull,
358 "stm", "ape_microsd"), /* dat1 */
359 DB8500_PIN_STATE("GPIO27_AA2", in_nopull,
360 "stm", "ape_microsd"), /* dat2 */
361 DB8500_PIN_STATE("GPIO28_AA1", in_nopull,
362 "stm", "ape_microsd"), /* dat3 */
363
364 DB8500_PIN_STATE("GPIO23_AA4", slpm_out_lo_wkup_pdis,
365 "stm", "ape_microsd_sleep"), /* clk */
366 DB8500_PIN_STATE("GPIO25_Y4", slpm_in_wkup_pdis,
367 "stm", "ape_microsd_sleep"), /* dat0 */
368 DB8500_PIN_STATE("GPIO26_Y2", slpm_in_wkup_pdis,
369 "stm", "ape_microsd_sleep"), /* dat1 */
370 DB8500_PIN_STATE("GPIO27_AA2", slpm_in_wkup_pdis,
371 "stm", "ape_microsd_sleep"), /* dat2 */
372 DB8500_PIN_STATE("GPIO28_AA1", slpm_in_wkup_pdis,
373 "stm", "ape_microsd_sleep"), /* dat3 */
374
375 /* STM Modem pins states */
376 DB8500_MUX_STATE("stmmod_oc3_2", "stmmod",
377 "stm", "mod_mipi34"),
378 DB8500_MUX_STATE("uartmodrx_oc3_1", "uartmod",
379 "stm", "mod_mipi34"),
380 DB8500_MUX_STATE("uartmodtx_oc3_1", "uartmod",
381 "stm", "mod_mipi34"),
382 DB8500_PIN_STATE("GPIO70_G5", in_nopull,
383 "stm", "mod_mipi34"), /* clk */
384 DB8500_PIN_STATE("GPIO71_G4", in_nopull,
385 "stm", "mod_mipi34"), /* dat3 */
386 DB8500_PIN_STATE("GPIO72_H4", in_nopull,
387 "stm", "mod_mipi34"), /* dat2 */
388 DB8500_PIN_STATE("GPIO73_H3", in_nopull,
389 "stm", "mod_mipi34"), /* dat1 */
390 DB8500_PIN_STATE("GPIO74_J3", in_nopull,
391 "stm", "mod_mipi34"), /* dat0 */
392 DB8500_PIN_STATE("GPIO75_H2", in_pu,
393 "stm", "mod_mipi34"), /* uartmod rx */
394 DB8500_PIN_STATE("GPIO76_J2", out_lo,
395 "stm", "mod_mipi34"), /* uartmod tx */
396
397 DB8500_PIN_STATE("GPIO70_G5", slpm_out_lo_pdis,
398 "stm", "mod_mipi34_sleep"), /* clk */
399 DB8500_PIN_STATE("GPIO71_G4", slpm_out_lo_pdis,
400 "stm", "mod_mipi34_sleep"), /* dat3 */
401 DB8500_PIN_STATE("GPIO72_H4", slpm_out_lo_pdis,
402 "stm", "mod_mipi34_sleep"), /* dat2 */
403 DB8500_PIN_STATE("GPIO73_H3", slpm_out_lo_pdis,
404 "stm", "mod_mipi34_sleep"), /* dat1 */
405 DB8500_PIN_STATE("GPIO74_J3", slpm_out_lo_pdis,
406 "stm", "mod_mipi34_sleep"), /* dat0 */
407 DB8500_PIN_STATE("GPIO75_H2", slpm_in_wkup_pdis,
408 "stm", "mod_mipi34_sleep"), /* uartmod rx */
409 DB8500_PIN_STATE("GPIO76_J2", slpm_out_lo_wkup_pdis,
410 "stm", "mod_mipi34_sleep"), /* uartmod tx */
411
412 DB8500_MUX_STATE("stmmod_b_1", "stmmod",
413 "stm", "mod_microsd"),
414 DB8500_MUX_STATE("uartmodrx_oc3_1", "uartmod",
415 "stm", "mod_microsd"),
416 DB8500_MUX_STATE("uartmodtx_oc3_1", "uartmod",
417 "stm", "mod_microsd"),
418 DB8500_PIN_STATE("GPIO23_AA4", in_nopull,
419 "stm", "mod_microsd"), /* clk */
420 DB8500_PIN_STATE("GPIO25_Y4", in_nopull,
421 "stm", "mod_microsd"), /* dat0 */
422 DB8500_PIN_STATE("GPIO26_Y2", in_nopull,
423 "stm", "mod_microsd"), /* dat1 */
424 DB8500_PIN_STATE("GPIO27_AA2", in_nopull,
425 "stm", "mod_microsd"), /* dat2 */
426 DB8500_PIN_STATE("GPIO28_AA1", in_nopull,
427 "stm", "mod_microsd"), /* dat3 */
428 DB8500_PIN_STATE("GPIO75_H2", in_pu,
429 "stm", "mod_microsd"), /* uartmod rx */
430 DB8500_PIN_STATE("GPIO76_J2", out_lo,
431 "stm", "mod_microsd"), /* uartmod tx */
432
433 DB8500_PIN_STATE("GPIO23_AA4", slpm_out_lo_wkup_pdis,
434 "stm", "mod_microsd_sleep"), /* clk */
435 DB8500_PIN_STATE("GPIO25_Y4", slpm_in_wkup_pdis,
436 "stm", "mod_microsd_sleep"), /* dat0 */
437 DB8500_PIN_STATE("GPIO26_Y2", slpm_in_wkup_pdis,
438 "stm", "mod_microsd_sleep"), /* dat1 */
439 DB8500_PIN_STATE("GPIO27_AA2", slpm_in_wkup_pdis,
440 "stm", "mod_microsd_sleep"), /* dat2 */
441 DB8500_PIN_STATE("GPIO28_AA1", slpm_in_wkup_pdis,
442 "stm", "mod_microsd_sleep"), /* dat3 */
443 DB8500_PIN_STATE("GPIO75_H2", slpm_in_wkup_pdis,
444 "stm", "mod_microsd_sleep"), /* uartmod rx */
445 DB8500_PIN_STATE("GPIO76_J2", slpm_out_lo_wkup_pdis,
446 "stm", "mod_microsd_sleep"), /* uartmod tx */
447
448 /* STM dual Modem/APE pins state */
449 DB8500_MUX_STATE("stmmod_oc3_2", "stmmod",
450 "stm", "mod_mipi34_ape_mipi60"),
451 DB8500_MUX_STATE("stmape_c_2", "stmape",
452 "stm", "mod_mipi34_ape_mipi60"),
453 DB8500_MUX_STATE("uartmodrx_oc3_1", "uartmod",
454 "stm", "mod_mipi34_ape_mipi60"),
455 DB8500_MUX_STATE("uartmodtx_oc3_1", "uartmod",
456 "stm", "mod_mipi34_ape_mipi60"),
457 DB8500_PIN_STATE("GPIO70_G5", in_nopull,
458 "stm", "mod_mipi34_ape_mipi60"), /* clk */
459 DB8500_PIN_STATE("GPIO71_G4", in_nopull,
460 "stm", "mod_mipi34_ape_mipi60"), /* dat3 */
461 DB8500_PIN_STATE("GPIO72_H4", in_nopull,
462 "stm", "mod_mipi34_ape_mipi60"), /* dat2 */
463 DB8500_PIN_STATE("GPIO73_H3", in_nopull,
464 "stm", "mod_mipi34_ape_mipi60"), /* dat1 */
465 DB8500_PIN_STATE("GPIO74_J3", in_nopull,
466 "stm", "mod_mipi34_ape_mipi60"), /* dat0 */
467 DB8500_PIN_STATE("GPIO75_H2", in_pu,
468 "stm", "mod_mipi34_ape_mipi60"), /* uartmod rx */
469 DB8500_PIN_STATE("GPIO76_J2", out_lo,
470 "stm", "mod_mipi34_ape_mipi60"), /* uartmod tx */
471 DB8500_PIN_STATE("GPIO155_C19", in_nopull,
472 "stm", "mod_mipi34_ape_mipi60"), /* clk */
473 DB8500_PIN_STATE("GPIO156_C17", in_nopull,
474 "stm", "mod_mipi34_ape_mipi60"), /* dat3 */
475 DB8500_PIN_STATE("GPIO157_A18", in_nopull,
476 "stm", "mod_mipi34_ape_mipi60"), /* dat2 */
477 DB8500_PIN_STATE("GPIO158_C18", in_nopull,
478 "stm", "mod_mipi34_ape_mipi60"), /* dat1 */
479 DB8500_PIN_STATE("GPIO159_B19", in_nopull,
480 "stm", "mod_mipi34_ape_mipi60"), /* dat0 */
481
482 DB8500_PIN_STATE("GPIO70_G5", slpm_out_lo_pdis,
483 "stm", "mod_mipi34_ape_mipi60_sleep"), /* clk */
484 DB8500_PIN_STATE("GPIO71_G4", slpm_out_lo_pdis,
485 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat3 */
486 DB8500_PIN_STATE("GPIO72_H4", slpm_out_lo_pdis,
487 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat2 */
488 DB8500_PIN_STATE("GPIO73_H3", slpm_out_lo_pdis,
489 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat1 */
490 DB8500_PIN_STATE("GPIO74_J3", slpm_out_lo_pdis,
491 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat0 */
492 DB8500_PIN_STATE("GPIO75_H2", slpm_in_wkup_pdis,
493 "stm", "mod_mipi34_ape_mipi60_sleep"), /* uartmod rx */
494 DB8500_PIN_STATE("GPIO76_J2", slpm_out_lo_wkup_pdis,
495 "stm", "mod_mipi34_ape_mipi60_sleep"), /* uartmod tx */
496 DB8500_PIN_STATE("GPIO155_C19", slpm_in_wkup_pdis,
497 "stm", "mod_mipi34_ape_mipi60_sleep"), /* clk */
498 DB8500_PIN_STATE("GPIO156_C17", slpm_in_wkup_pdis,
499 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat3 */
500 DB8500_PIN_STATE("GPIO157_A18", slpm_in_wkup_pdis,
501 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat2 */
502 DB8500_PIN_STATE("GPIO158_C18", slpm_in_wkup_pdis,
503 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat1 */
504 DB8500_PIN_STATE("GPIO159_B19", slpm_in_wkup_pdis,
505 "stm", "mod_mipi34_ape_mipi60_sleep"), /* dat0 */
506};
507
508/* 314/*
509 * These are specifically for the MOP500 and HREFP (pre-v60) version of the 315 * These are specifically for the MOP500 and HREFP (pre-v60) version of the
510 * board, which utilized a TC35892 GPIO expander instead of using a lot of 316 * board, which utilized a TC35892 GPIO expander instead of using a lot of
@@ -690,8 +496,6 @@ static void __init mop500_href_family_pinmaps_init(void)
690 496
691void __init mop500_pinmaps_init(void) 497void __init mop500_pinmaps_init(void)
692{ 498{
693 pinctrl_register_mappings(mop500_family_pinmap,
694 ARRAY_SIZE(mop500_family_pinmap));
695 pinctrl_register_mappings(mop500_pinmap, 499 pinctrl_register_mappings(mop500_pinmap,
696 ARRAY_SIZE(mop500_pinmap)); 500 ARRAY_SIZE(mop500_pinmap));
697 mop500_href_family_pinmaps_init(); 501 mop500_href_family_pinmaps_init();
@@ -705,8 +509,6 @@ void __init mop500_pinmaps_init(void)
705 509
706void __init snowball_pinmaps_init(void) 510void __init snowball_pinmaps_init(void)
707{ 511{
708 pinctrl_register_mappings(mop500_family_pinmap,
709 ARRAY_SIZE(mop500_family_pinmap));
710 pinctrl_register_mappings(snowball_pinmap, 512 pinctrl_register_mappings(snowball_pinmap,
711 ARRAY_SIZE(snowball_pinmap)); 513 ARRAY_SIZE(snowball_pinmap));
712 pinctrl_register_mappings(u8500_pinmap, 514 pinctrl_register_mappings(u8500_pinmap,
@@ -717,8 +519,6 @@ void __init snowball_pinmaps_init(void)
717 519
718void __init hrefv60_pinmaps_init(void) 520void __init hrefv60_pinmaps_init(void)
719{ 521{
720 pinctrl_register_mappings(mop500_family_pinmap,
721 ARRAY_SIZE(mop500_family_pinmap));
722 pinctrl_register_mappings(hrefv60_pinmap, 522 pinctrl_register_mappings(hrefv60_pinmap,
723 ARRAY_SIZE(hrefv60_pinmap)); 523 ARRAY_SIZE(hrefv60_pinmap));
724 mop500_href_family_pinmaps_init(); 524 mop500_href_family_pinmaps_init();
generated by cgit v1.2.2 (git 2.25.0) at 2025-06-19 15:51:49 -0400
id='n2248' href='#n2248'>2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 
/*
 * Copyright (c) 2006-2008 Intel Corporation
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (c) 2008 Red Hat Inc.
 *
 * DRM core CRTC related functions
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 *
 * Authors:
 *      Keith Packard
 *	Eric Anholt <eric@anholt.net>
 *      Dave Airlie <airlied@linux.ie>
 *      Jesse Barnes <jesse.barnes@intel.com>
 */
#include <linux/list.h>
#include <linux/slab.h>
#include "drm.h"
#include "drmP.h"
#include "drm_crtc.h"
#include "drm_edid.h"

struct drm_prop_enum_list {
	int type;
	char *name;
};

/* Avoid boilerplate.  I'm tired of typing. */
#define DRM_ENUM_NAME_FN(fnname, list)				\
	char *fnname(int val)					\
	{							\
		int i;						\
		for (i = 0; i < ARRAY_SIZE(list); i++) {	\
			if (list[i].type == val)		\
				return list[i].name;		\
		}						\
		return "(unknown)";				\
	}

/*
 * Global properties
 */
static struct drm_prop_enum_list drm_dpms_enum_list[] =
{	{ DRM_MODE_DPMS_ON, "On" },
	{ DRM_MODE_DPMS_STANDBY, "Standby" },
	{ DRM_MODE_DPMS_SUSPEND, "Suspend" },
	{ DRM_MODE_DPMS_OFF, "Off" }
};

DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)

/*
 * Optional properties
 */
static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
{
	{ DRM_MODE_SCALE_NONE, "None" },
	{ DRM_MODE_SCALE_FULLSCREEN, "Full" },
	{ DRM_MODE_SCALE_CENTER, "Center" },
	{ DRM_MODE_SCALE_ASPECT, "Full aspect" },
};

static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
{
	{ DRM_MODE_DITHERING_OFF, "Off" },
	{ DRM_MODE_DITHERING_ON, "On" },
	{ DRM_MODE_DITHERING_AUTO, "Automatic" },
};

/*
 * Non-global properties, but "required" for certain connectors.
 */
static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
{
	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
	{ DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
	{ DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
};

DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)

static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
{
	{ DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
	{ DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
	{ DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
};

DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
		 drm_dvi_i_subconnector_enum_list)

static struct drm_prop_enum_list drm_tv_select_enum_list[] =
{
	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
	{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
};

DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)

static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
{
	{ DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
	{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
	{ DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
};

DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
		 drm_tv_subconnector_enum_list)

static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
	{ DRM_MODE_DIRTY_OFF,      "Off"      },
	{ DRM_MODE_DIRTY_ON,       "On"       },
	{ DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
};

DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
		 drm_dirty_info_enum_list)

struct drm_conn_prop_enum_list {
	int type;
	char *name;
	int count;
};

/*
 * Connector and encoder types.
 */
static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
{	{ DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
	{ DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
	{ DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
	{ DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
	{ DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
	{ DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
	{ DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
	{ DRM_MODE_CONNECTOR_Component, "Component", 0 },
	{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
	{ DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
	{ DRM_MODE_CONNECTOR_TV, "TV", 0 },
	{ DRM_MODE_CONNECTOR_eDP, "Embedded DisplayPort", 0 },
};

static struct drm_prop_enum_list drm_encoder_enum_list[] =
{	{ DRM_MODE_ENCODER_NONE, "None" },
	{ DRM_MODE_ENCODER_DAC, "DAC" },
	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
	{ DRM_MODE_ENCODER_TVDAC, "TV" },
};

char *drm_get_encoder_name(struct drm_encoder *encoder)
{
	static char buf[32];

	snprintf(buf, 32, "%s-%d",
		 drm_encoder_enum_list[encoder->encoder_type].name,
		 encoder->base.id);
	return buf;
}
EXPORT_SYMBOL(drm_get_encoder_name);

char *drm_get_connector_name(struct drm_connector *connector)
{
	static char buf[32];

	snprintf(buf, 32, "%s-%d",
		 drm_connector_enum_list[connector->connector_type].name,
		 connector->connector_type_id);
	return buf;
}
EXPORT_SYMBOL(drm_get_connector_name);

char *drm_get_connector_status_name(enum drm_connector_status status)
{
	if (status == connector_status_connected)
		return "connected";
	else if (status == connector_status_disconnected)
		return "disconnected";
	else
		return "unknown";
}

/**
 * drm_mode_object_get - allocate a new identifier
 * @dev: DRM device
 * @ptr: object pointer, used to generate unique ID
 * @type: object type
 *
 * LOCKING:
 *
 * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 * for tracking modes, CRTCs and connectors.
 *
 * RETURNS:
 * New unique (relative to other objects in @dev) integer identifier for the
 * object.
 */
static int drm_mode_object_get(struct drm_device *dev,
			       struct drm_mode_object *obj, uint32_t obj_type)
{
	int new_id = 0;
	int ret;

again:
	if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
		DRM_ERROR("Ran out memory getting a mode number\n");
		return -EINVAL;
	}

	mutex_lock(&dev->mode_config.idr_mutex);
	ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
	mutex_unlock(&dev->mode_config.idr_mutex);
	if (ret == -EAGAIN)
		goto again;

	obj->id = new_id;
	obj->type = obj_type;
	return 0;
}

/**
 * drm_mode_object_put - free an identifer
 * @dev: DRM device
 * @id: ID to free
 *
 * LOCKING:
 * Caller must hold DRM mode_config lock.
 *
 * Free @id from @dev's unique identifier pool.
 */
static void drm_mode_object_put(struct drm_device *dev,
				struct drm_mode_object *object)
{
	mutex_lock(&dev->mode_config.idr_mutex);
	idr_remove(&dev->mode_config.crtc_idr, object->id);
	mutex_unlock(&dev->mode_config.idr_mutex);
}

struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
		uint32_t id, uint32_t type)
{
	struct drm_mode_object *obj = NULL;

	mutex_lock(&dev->mode_config.idr_mutex);
	obj = idr_find(&dev->mode_config.crtc_idr, id);
	if (!obj || (obj->type != type) || (obj->id != id))
		obj = NULL;
	mutex_unlock(&dev->mode_config.idr_mutex);

	return obj;
}
EXPORT_SYMBOL(drm_mode_object_find);

/**
 * drm_framebuffer_init - initialize a framebuffer
 * @dev: DRM device
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Allocates an ID for the framebuffer's parent mode object, sets its mode
 * functions & device file and adds it to the master fd list.
 *
 * RETURNS:
 * Zero on success, error code on failure.
 */
int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
			 const struct drm_framebuffer_funcs *funcs)
{
	int ret;

	ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
	if (ret) {
		return ret;
	}

	fb->dev = dev;
	fb->funcs = funcs;
	dev->mode_config.num_fb++;
	list_add(&fb->head, &dev->mode_config.fb_list);

	return 0;
}
EXPORT_SYMBOL(drm_framebuffer_init);

/**
 * drm_framebuffer_cleanup - remove a framebuffer object
 * @fb: framebuffer to remove
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 * it, setting it to NULL.
 */
void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
{
	struct drm_device *dev = fb->dev;
	struct drm_crtc *crtc;
	struct drm_mode_set set;
	int ret;

	/* remove from any CRTC */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		if (crtc->fb == fb) {
			/* should turn off the crtc */
			memset(&set, 0, sizeof(struct drm_mode_set));
			set.crtc = crtc;
			set.fb = NULL;
			ret = crtc->funcs->set_config(&set);
			if (ret)
				DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
		}
	}

	drm_mode_object_put(dev, &fb->base);
	list_del(&fb->head);
	dev->mode_config.num_fb--;
}
EXPORT_SYMBOL(drm_framebuffer_cleanup);

/**
 * drm_crtc_init - Initialise a new CRTC object
 * @dev: DRM device
 * @crtc: CRTC object to init
 * @funcs: callbacks for the new CRTC
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Inits a new object created as base part of an driver crtc object.
 */
void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
		   const struct drm_crtc_funcs *funcs)
{
	crtc->dev = dev;
	crtc->funcs = funcs;

	mutex_lock(&dev->mode_config.mutex);
	drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);

	list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
	dev->mode_config.num_crtc++;
	mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_crtc_init);

/**
 * drm_crtc_cleanup - Cleans up the core crtc usage.
 * @crtc: CRTC to cleanup
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Cleanup @crtc. Removes from drm modesetting space
 * does NOT free object, caller does that.
 */
void drm_crtc_cleanup(struct drm_crtc *crtc)
{
	struct drm_device *dev = crtc->dev;

	if (crtc->gamma_store) {
		kfree(crtc->gamma_store);
		crtc->gamma_store = NULL;
	}

	drm_mode_object_put(dev, &crtc->base);
	list_del(&crtc->head);
	dev->mode_config.num_crtc--;
}
EXPORT_SYMBOL(drm_crtc_cleanup);

/**
 * drm_mode_probed_add - add a mode to a connector's probed mode list
 * @connector: connector the new mode
 * @mode: mode data
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Add @mode to @connector's mode list for later use.
 */
void drm_mode_probed_add(struct drm_connector *connector,
			 struct drm_display_mode *mode)
{
	list_add(&mode->head, &connector->probed_modes);
}
EXPORT_SYMBOL(drm_mode_probed_add);

/**
 * drm_mode_remove - remove and free a mode
 * @connector: connector list to modify
 * @mode: mode to remove
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Remove @mode from @connector's mode list, then free it.
 */
void drm_mode_remove(struct drm_connector *connector,
		     struct drm_display_mode *mode)
{
	list_del(&mode->head);
	kfree(mode);
}
EXPORT_SYMBOL(drm_mode_remove);

/**
 * drm_connector_init - Init a preallocated connector
 * @dev: DRM device
 * @connector: the connector to init
 * @funcs: callbacks for this connector
 * @name: user visible name of the connector
 *
 * LOCKING:
 * Caller must hold @dev's mode_config lock.
 *
 * Initialises a preallocated connector. Connectors should be
 * subclassed as part of driver connector objects.
 */
void drm_connector_init(struct drm_device *dev,
		     struct drm_connector *connector,
		     const struct drm_connector_funcs *funcs,
		     int connector_type)
{
	mutex_lock(&dev->mode_config.mutex);

	connector->dev = dev;
	connector->funcs = funcs;
	drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
	connector->connector_type = connector_type;
	connector->connector_type_id =
		++drm_connector_enum_list[connector_type].count; /* TODO */
	INIT_LIST_HEAD(&connector->user_modes);
	INIT_LIST_HEAD(&connector->probed_modes);
	INIT_LIST_HEAD(&connector->modes);
	connector->edid_blob_ptr = NULL;

	list_add_tail(&connector->head, &dev->mode_config.connector_list);
	dev->mode_config.num_connector++;

	drm_connector_attach_property(connector,
				      dev->mode_config.edid_property, 0);

	drm_connector_attach_property(connector,
				      dev->mode_config.dpms_property, 0);

	mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_connector_init);

/**
 * drm_connector_cleanup - cleans up an initialised connector
 * @connector: connector to cleanup
 *
 * LOCKING:
 * Caller must hold @dev's mode_config lock.
 *
 * Cleans up the connector but doesn't free the object.
 */
void drm_connector_cleanup(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_display_mode *mode, *t;

	list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
		drm_mode_remove(connector, mode);

	list_for_each_entry_safe(mode, t, &connector->modes, head)
		drm_mode_remove(connector, mode);

	list_for_each_entry_safe(mode, t, &connector->user_modes, head)
		drm_mode_remove(connector, mode);

	mutex_lock(&dev->mode_config.mutex);
	drm_mode_object_put(dev, &connector->base);
	list_del(&connector->head);
	mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_connector_cleanup);

void drm_encoder_init(struct drm_device *dev,
		      struct drm_encoder *encoder,
		      const struct drm_encoder_funcs *funcs,
		      int encoder_type)
{
	mutex_lock(&dev->mode_config.mutex);

	encoder->dev = dev;

	drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
	encoder->encoder_type = encoder_type;
	encoder->funcs = funcs;

	list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
	dev->mode_config.num_encoder++;

	mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_encoder_init);

void drm_encoder_cleanup(struct drm_encoder *encoder)
{
	struct drm_device *dev = encoder->dev;
	mutex_lock(&dev->mode_config.mutex);
	drm_mode_object_put(dev, &encoder->base);
	list_del(&encoder->head);
	mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_encoder_cleanup);

/**
 * drm_mode_create - create a new display mode
 * @dev: DRM device
 *
 * LOCKING:
 * Caller must hold DRM mode_config lock.
 *
 * Create a new drm_display_mode, give it an ID, and return it.
 *
 * RETURNS:
 * Pointer to new mode on success, NULL on error.
 */
struct drm_display_mode *drm_mode_create(struct drm_device *dev)
{
	struct drm_display_mode *nmode;

	nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
	if (!nmode)
		return NULL;

	drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
	return nmode;
}
EXPORT_SYMBOL(drm_mode_create);

/**
 * drm_mode_destroy - remove a mode
 * @dev: DRM device
 * @mode: mode to remove
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Free @mode's unique identifier, then free it.
 */
void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
{
	drm_mode_object_put(dev, &mode->base);

	kfree(mode);
}
EXPORT_SYMBOL(drm_mode_destroy);

static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
{
	struct drm_property *edid;
	struct drm_property *dpms;
	int i;

	/*
	 * Standard properties (apply to all connectors)
	 */
	edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
				   DRM_MODE_PROP_IMMUTABLE,
				   "EDID", 0);
	dev->mode_config.edid_property = edid;

	dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
				   "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
		drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
				      drm_dpms_enum_list[i].name);
	dev->mode_config.dpms_property = dpms;

	return 0;
}

/**
 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 * @dev: DRM device
 *
 * Called by a driver the first time a DVI-I connector is made.
 */
int drm_mode_create_dvi_i_properties(struct drm_device *dev)
{
	struct drm_property *dvi_i_selector;
	struct drm_property *dvi_i_subconnector;
	int i;

	if (dev->mode_config.dvi_i_select_subconnector_property)
		return 0;

	dvi_i_selector =
		drm_property_create(dev, DRM_MODE_PROP_ENUM,
				    "select subconnector",
				    ARRAY_SIZE(drm_dvi_i_select_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
		drm_property_add_enum(dvi_i_selector, i,
				      drm_dvi_i_select_enum_list[i].type,
				      drm_dvi_i_select_enum_list[i].name);
	dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;

	dvi_i_subconnector =
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
				    DRM_MODE_PROP_IMMUTABLE,
				    "subconnector",
				    ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
		drm_property_add_enum(dvi_i_subconnector, i,
				      drm_dvi_i_subconnector_enum_list[i].type,
				      drm_dvi_i_subconnector_enum_list[i].name);
	dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;

	return 0;
}
EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);

/**
 * drm_create_tv_properties - create TV specific connector properties
 * @dev: DRM device
 * @num_modes: number of different TV formats (modes) supported
 * @modes: array of pointers to strings containing name of each format
 *
 * Called by a driver's TV initialization routine, this function creates
 * the TV specific connector properties for a given device.  Caller is
 * responsible for allocating a list of format names and passing them to
 * this routine.
 */
int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
				  char *modes[])
{
	struct drm_property *tv_selector;
	struct drm_property *tv_subconnector;
	int i;

	if (dev->mode_config.tv_select_subconnector_property)
		return 0;

	/*
	 * Basic connector properties
	 */
	tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
					  "select subconnector",
					  ARRAY_SIZE(drm_tv_select_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
		drm_property_add_enum(tv_selector, i,
				      drm_tv_select_enum_list[i].type,
				      drm_tv_select_enum_list[i].name);
	dev->mode_config.tv_select_subconnector_property = tv_selector;

	tv_subconnector =
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
				    DRM_MODE_PROP_IMMUTABLE, "subconnector",
				    ARRAY_SIZE(drm_tv_subconnector_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
		drm_property_add_enum(tv_subconnector, i,
				      drm_tv_subconnector_enum_list[i].type,
				      drm_tv_subconnector_enum_list[i].name);
	dev->mode_config.tv_subconnector_property = tv_subconnector;

	/*
	 * Other, TV specific properties: margins & TV modes.
	 */
	dev->mode_config.tv_left_margin_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "left margin", 2);
	dev->mode_config.tv_left_margin_property->values[0] = 0;
	dev->mode_config.tv_left_margin_property->values[1] = 100;

	dev->mode_config.tv_right_margin_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "right margin", 2);
	dev->mode_config.tv_right_margin_property->values[0] = 0;
	dev->mode_config.tv_right_margin_property->values[1] = 100;

	dev->mode_config.tv_top_margin_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "top margin", 2);
	dev->mode_config.tv_top_margin_property->values[0] = 0;
	dev->mode_config.tv_top_margin_property->values[1] = 100;

	dev->mode_config.tv_bottom_margin_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "bottom margin", 2);
	dev->mode_config.tv_bottom_margin_property->values[0] = 0;
	dev->mode_config.tv_bottom_margin_property->values[1] = 100;

	dev->mode_config.tv_mode_property =
		drm_property_create(dev, DRM_MODE_PROP_ENUM,
				    "mode", num_modes);
	for (i = 0; i < num_modes; i++)
		drm_property_add_enum(dev->mode_config.tv_mode_property, i,
				      i, modes[i]);

	dev->mode_config.tv_brightness_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "brightness", 2);
	dev->mode_config.tv_brightness_property->values[0] = 0;
	dev->mode_config.tv_brightness_property->values[1] = 100;

	dev->mode_config.tv_contrast_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "contrast", 2);
	dev->mode_config.tv_contrast_property->values[0] = 0;
	dev->mode_config.tv_contrast_property->values[1] = 100;

	dev->mode_config.tv_flicker_reduction_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "flicker reduction", 2);
	dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
	dev->mode_config.tv_flicker_reduction_property->values[1] = 100;

	dev->mode_config.tv_overscan_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "overscan", 2);
	dev->mode_config.tv_overscan_property->values[0] = 0;
	dev->mode_config.tv_overscan_property->values[1] = 100;

	dev->mode_config.tv_saturation_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "saturation", 2);
	dev->mode_config.tv_saturation_property->values[0] = 0;
	dev->mode_config.tv_saturation_property->values[1] = 100;

	dev->mode_config.tv_hue_property =
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
				    "hue", 2);
	dev->mode_config.tv_hue_property->values[0] = 0;
	dev->mode_config.tv_hue_property->values[1] = 100;

	return 0;
}
EXPORT_SYMBOL(drm_mode_create_tv_properties);

/**
 * drm_mode_create_scaling_mode_property - create scaling mode property
 * @dev: DRM device
 *
 * Called by a driver the first time it's needed, must be attached to desired
 * connectors.
 */
int drm_mode_create_scaling_mode_property(struct drm_device *dev)
{
	struct drm_property *scaling_mode;
	int i;

	if (dev->mode_config.scaling_mode_property)
		return 0;

	scaling_mode =
		drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
				    ARRAY_SIZE(drm_scaling_mode_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
		drm_property_add_enum(scaling_mode, i,
				      drm_scaling_mode_enum_list[i].type,
				      drm_scaling_mode_enum_list[i].name);

	dev->mode_config.scaling_mode_property = scaling_mode;

	return 0;
}
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);

/**
 * drm_mode_create_dithering_property - create dithering property
 * @dev: DRM device
 *
 * Called by a driver the first time it's needed, must be attached to desired
 * connectors.
 */
int drm_mode_create_dithering_property(struct drm_device *dev)
{
	struct drm_property *dithering_mode;
	int i;

	if (dev->mode_config.dithering_mode_property)
		return 0;

	dithering_mode =
		drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
				    ARRAY_SIZE(drm_dithering_mode_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
		drm_property_add_enum(dithering_mode, i,
				      drm_dithering_mode_enum_list[i].type,
				      drm_dithering_mode_enum_list[i].name);
	dev->mode_config.dithering_mode_property = dithering_mode;

	return 0;
}
EXPORT_SYMBOL(drm_mode_create_dithering_property);

/**
 * drm_mode_create_dirty_property - create dirty property
 * @dev: DRM device
 *
 * Called by a driver the first time it's needed, must be attached to desired
 * connectors.
 */
int drm_mode_create_dirty_info_property(struct drm_device *dev)
{
	struct drm_property *dirty_info;
	int i;

	if (dev->mode_config.dirty_info_property)
		return 0;

	dirty_info =
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
				    DRM_MODE_PROP_IMMUTABLE,
				    "dirty",
				    ARRAY_SIZE(drm_dirty_info_enum_list));
	for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
		drm_property_add_enum(dirty_info, i,
				      drm_dirty_info_enum_list[i].type,
				      drm_dirty_info_enum_list[i].name);
	dev->mode_config.dirty_info_property = dirty_info;

	return 0;
}
EXPORT_SYMBOL(drm_mode_create_dirty_info_property);

/**
 * drm_mode_config_init - initialize DRM mode_configuration structure
 * @dev: DRM device
 *
 * LOCKING:
 * None, should happen single threaded at init time.
 *
 * Initialize @dev's mode_config structure, used for tracking the graphics
 * configuration of @dev.
 */
void drm_mode_config_init(struct drm_device *dev)
{
	mutex_init(&dev->mode_config.mutex);
	mutex_init(&dev->mode_config.idr_mutex);
	INIT_LIST_HEAD(&dev->mode_config.fb_list);
	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
	INIT_LIST_HEAD(&dev->mode_config.connector_list);
	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
	INIT_LIST_HEAD(&dev->mode_config.property_list);
	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
	idr_init(&dev->mode_config.crtc_idr);

	mutex_lock(&dev->mode_config.mutex);
	drm_mode_create_standard_connector_properties(dev);
	mutex_unlock(&dev->mode_config.mutex);

	/* Just to be sure */
	dev->mode_config.num_fb = 0;
	dev->mode_config.num_connector = 0;
	dev->mode_config.num_crtc = 0;
	dev->mode_config.num_encoder = 0;
}
EXPORT_SYMBOL(drm_mode_config_init);

int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
{
	uint32_t total_objects = 0;

	total_objects += dev->mode_config.num_crtc;
	total_objects += dev->mode_config.num_connector;
	total_objects += dev->mode_config.num_encoder;

	if (total_objects == 0)
		return -EINVAL;

	group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
	if (!group->id_list)
		return -ENOMEM;

	group->num_crtcs = 0;
	group->num_connectors = 0;
	group->num_encoders = 0;
	return 0;
}

int drm_mode_group_init_legacy_group(struct drm_device *dev,
				     struct drm_mode_group *group)
{
	struct drm_crtc *crtc;
	struct drm_encoder *encoder;
	struct drm_connector *connector;
	int ret;

	if ((ret = drm_mode_group_init(dev, group)))
		return ret;

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		group->id_list[group->num_crtcs++] = crtc->base.id;

	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		group->id_list[group->num_crtcs + group->num_encoders++] =
		encoder->base.id;

	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		group->id_list[group->num_crtcs + group->num_encoders +
			       group->num_connectors++] = connector->base.id;

	return 0;
}

/**
 * drm_mode_config_cleanup - free up DRM mode_config info
 * @dev: DRM device
 *
 * LOCKING:
 * Caller must hold mode config lock.
 *
 * Free up all the connectors and CRTCs associated with this DRM device, then
 * free up the framebuffers and associated buffer objects.
 *
 * FIXME: cleanup any dangling user buffer objects too
 */
void drm_mode_config_cleanup(struct drm_device *dev)
{
	struct drm_connector *connector, *ot;
	struct drm_crtc *crtc, *ct;
	struct drm_encoder *encoder, *enct;
	struct drm_framebuffer *fb, *fbt;
	struct drm_property *property, *pt;

	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
				 head) {
		encoder->funcs->destroy(encoder);
	}

	list_for_each_entry_safe(connector, ot,
				 &dev->mode_config.connector_list, head) {
		connector->funcs->destroy(connector);
	}

	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
				 head) {
		drm_property_destroy(dev, property);
	}

	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
		fb->funcs->destroy(fb);
	}

	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
		crtc->funcs->destroy(crtc);
	}

}
EXPORT_SYMBOL(drm_mode_config_cleanup);

/**
 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 * @out: drm_mode_modeinfo struct to return to the user
 * @in: drm_display_mode to use
 *
 * LOCKING:
 * None.
 *
 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
 * the user.
 */
void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
			       struct drm_display_mode *in)
{
	out->clock = in->clock;
	out->hdisplay = in->hdisplay;
	out->hsync_start = in->hsync_start;
	out->hsync_end = in->hsync_end;
	out->htotal = in->htotal;
	out->hskew = in->hskew;
	out->vdisplay = in->vdisplay;
	out->vsync_start = in->vsync_start;
	out->vsync_end = in->vsync_end;
	out->vtotal = in->vtotal;
	out->vscan = in->vscan;
	out->vrefresh = in->vrefresh;
	out->flags = in->flags;
	out->type = in->type;
	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
}

/**
 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
 * @out: drm_display_mode to return to the user
 * @in: drm_mode_modeinfo to use
 *
 * LOCKING:
 * None.
 *
 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
 * the caller.
 */
void drm_crtc_convert_umode(struct drm_display_mode *out,
			    struct drm_mode_modeinfo *in)
{
	out->clock = in->clock;
	out->hdisplay = in->hdisplay;
	out->hsync_start = in->hsync_start;
	out->hsync_end = in->hsync_end;
	out->htotal = in->htotal;
	out->hskew = in->hskew;
	out->vdisplay = in->vdisplay;
	out->vsync_start = in->vsync_start;
	out->vsync_end = in->vsync_end;
	out->vtotal = in->vtotal;
	out->vscan = in->vscan;
	out->vrefresh = in->vrefresh;
	out->flags = in->flags;
	out->type = in->type;
	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
}

/**
 * drm_mode_getresources - get graphics configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Takes mode config lock.
 *
 * Construct a set of configuration description structures and return
 * them to the user, including CRTC, connector and framebuffer configuration.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_getresources(struct drm_device *dev, void *data,
			  struct drm_file *file_priv)
{
	struct drm_mode_card_res *card_res = data;
	struct list_head *lh;
	struct drm_framebuffer *fb;
	struct drm_connector *connector;
	struct drm_crtc *crtc;
	struct drm_encoder *encoder;
	int ret = 0;
	int connector_count = 0;
	int crtc_count = 0;
	int fb_count = 0;
	int encoder_count = 0;
	int copied = 0, i;
	uint32_t __user *fb_id;
	uint32_t __user *crtc_id;
	uint32_t __user *connector_id;
	uint32_t __user *encoder_id;
	struct drm_mode_group *mode_group;

	mutex_lock(&dev->mode_config.mutex);

	/*
	 * For the non-control nodes we need to limit the list of resources
	 * by IDs in the group list for this node
	 */
	list_for_each(lh, &file_priv->fbs)
		fb_count++;

	mode_group = &file_priv->master->minor->mode_group;
	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {

		list_for_each(lh, &dev->mode_config.crtc_list)
			crtc_count++;

		list_for_each(lh, &dev->mode_config.connector_list)
			connector_count++;

		list_for_each(lh, &dev->mode_config.encoder_list)
			encoder_count++;
	} else {

		crtc_count = mode_group->num_crtcs;
		connector_count = mode_group->num_connectors;
		encoder_count = mode_group->num_encoders;
	}

	card_res->max_height = dev->mode_config.max_height;
	card_res->min_height = dev->mode_config.min_height;
	card_res->max_width = dev->mode_config.max_width;
	card_res->min_width = dev->mode_config.min_width;

	/* handle this in 4 parts */
	/* FBs */
	if (card_res->count_fbs >= fb_count) {
		copied = 0;
		fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
		list_for_each_entry(fb, &file_priv->fbs, head) {
			if (put_user(fb->base.id, fb_id + copied)) {
				ret = -EFAULT;
				goto out;
			}
			copied++;
		}
	}
	card_res->count_fbs = fb_count;

	/* CRTCs */
	if (card_res->count_crtcs >= crtc_count) {
		copied = 0;
		crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
			list_for_each_entry(crtc, &dev->mode_config.crtc_list,
					    head) {
				DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
				if (put_user(crtc->base.id, crtc_id + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		} else {
			for (i = 0; i < mode_group->num_crtcs; i++) {
				if (put_user(mode_group->id_list[i],
					     crtc_id + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		}
	}
	card_res->count_crtcs = crtc_count;

	/* Encoders */
	if (card_res->count_encoders >= encoder_count) {
		copied = 0;
		encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
			list_for_each_entry(encoder,
					    &dev->mode_config.encoder_list,
					    head) {
				DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
						drm_get_encoder_name(encoder));
				if (put_user(encoder->base.id, encoder_id +
					     copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		} else {
			for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
				if (put_user(mode_group->id_list[i],
					     encoder_id + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}

		}
	}
	card_res->count_encoders = encoder_count;

	/* Connectors */
	if (card_res->count_connectors >= connector_count) {
		copied = 0;
		connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
			list_for_each_entry(connector,
					    &dev->mode_config.connector_list,
					    head) {
				DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
					connector->base.id,
					drm_get_connector_name(connector));
				if (put_user(connector->base.id,
					     connector_id + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		} else {
			int start = mode_group->num_crtcs +
				mode_group->num_encoders;
			for (i = start; i < start + mode_group->num_connectors; i++) {
				if (put_user(mode_group->id_list[i],
					     connector_id + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		}
	}
	card_res->count_connectors = connector_count;

	DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
		  card_res->count_connectors, card_res->count_encoders);

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_getcrtc - get CRTC configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Caller? (FIXME)
 *
 * Construct a CRTC configuration structure to return to the user.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_getcrtc(struct drm_device *dev,
		     void *data, struct drm_file *file_priv)
{
	struct drm_mode_crtc *crtc_resp = data;
	struct drm_crtc *crtc;
	struct drm_mode_object *obj;
	int ret = 0;

	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
				   DRM_MODE_OBJECT_CRTC);
	if (!obj) {
		ret = -EINVAL;
		goto out;
	}
	crtc = obj_to_crtc(obj);

	crtc_resp->x = crtc->x;
	crtc_resp->y = crtc->y;
	crtc_resp->gamma_size = crtc->gamma_size;
	if (crtc->fb)
		crtc_resp->fb_id = crtc->fb->base.id;
	else
		crtc_resp->fb_id = 0;

	if (crtc->enabled) {

		drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
		crtc_resp->mode_valid = 1;

	} else {
		crtc_resp->mode_valid = 0;
	}

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_getconnector - get connector configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Caller? (FIXME)
 *
 * Construct a connector configuration structure to return to the user.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_getconnector(struct drm_device *dev, void *data,
			  struct drm_file *file_priv)
{
	struct drm_mode_get_connector *out_resp = data;
	struct drm_mode_object *obj;
	struct drm_connector *connector;
	struct drm_display_mode *mode;
	int mode_count = 0;
	int props_count = 0;
	int encoders_count = 0;
	int ret = 0;
	int copied = 0;
	int i;
	struct drm_mode_modeinfo u_mode;
	struct drm_mode_modeinfo __user *mode_ptr;
	uint32_t __user *prop_ptr;
	uint64_t __user *prop_values;
	uint32_t __user *encoder_ptr;

	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));

	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);

	mutex_lock(&dev->mode_config.mutex);

	obj = drm_mode_object_find(dev, out_resp->connector_id,
				   DRM_MODE_OBJECT_CONNECTOR);
	if (!obj) {
		ret = -EINVAL;
		goto out;
	}
	connector = obj_to_connector(obj);

	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		if (connector->property_ids[i] != 0) {
			props_count++;
		}
	}

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		if (connector->encoder_ids[i] != 0) {
			encoders_count++;
		}
	}

	if (out_resp->count_modes == 0) {
		connector->funcs->fill_modes(connector,
					     dev->mode_config.max_width,
					     dev->mode_config.max_height);
	}

	/* delayed so we get modes regardless of pre-fill_modes state */
	list_for_each_entry(mode, &connector->modes, head)
		mode_count++;

	out_resp->connector_id = connector->base.id;
	out_resp->connector_type = connector->connector_type;
	out_resp->connector_type_id = connector->connector_type_id;
	out_resp->mm_width = connector->display_info.width_mm;
	out_resp->mm_height = connector->display_info.height_mm;
	out_resp->subpixel = connector->display_info.subpixel_order;
	out_resp->connection = connector->status;
	if (connector->encoder)
		out_resp->encoder_id = connector->encoder->base.id;
	else
		out_resp->encoder_id = 0;

	/*
	 * This ioctl is called twice, once to determine how much space is
	 * needed, and the 2nd time to fill it.
	 */
	if ((out_resp->count_modes >= mode_count) && mode_count) {
		copied = 0;
		mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
		list_for_each_entry(mode, &connector->modes, head) {
			drm_crtc_convert_to_umode(&u_mode, mode);
			if (copy_to_user(mode_ptr + copied,
					 &u_mode, sizeof(u_mode))) {
				ret = -EFAULT;
				goto out;
			}
			copied++;
		}
	}
	out_resp->count_modes = mode_count;

	if ((out_resp->count_props >= props_count) && props_count) {
		copied = 0;
		prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
		prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
		for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
			if (connector->property_ids[i] != 0) {
				if (put_user(connector->property_ids[i],
					     prop_ptr + copied)) {
					ret = -EFAULT;
					goto out;
				}

				if (put_user(connector->property_values[i],
					     prop_values + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		}
	}
	out_resp->count_props = props_count;

	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
		copied = 0;
		encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
		for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
			if (connector->encoder_ids[i] != 0) {
				if (put_user(connector->encoder_ids[i],
					     encoder_ptr + copied)) {
					ret = -EFAULT;
					goto out;
				}
				copied++;
			}
		}
	}
	out_resp->count_encoders = encoders_count;

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

int drm_mode_getencoder(struct drm_device *dev, void *data,
			struct drm_file *file_priv)
{
	struct drm_mode_get_encoder *enc_resp = data;
	struct drm_mode_object *obj;
	struct drm_encoder *encoder;
	int ret = 0;

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
				   DRM_MODE_OBJECT_ENCODER);
	if (!obj) {
		ret = -EINVAL;
		goto out;
	}
	encoder = obj_to_encoder(obj);

	if (encoder->crtc)
		enc_resp->crtc_id = encoder->crtc->base.id;
	else
		enc_resp->crtc_id = 0;
	enc_resp->encoder_type = encoder->encoder_type;
	enc_resp->encoder_id = encoder->base.id;
	enc_resp->possible_crtcs = encoder->possible_crtcs;
	enc_resp->possible_clones = encoder->possible_clones;

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_setcrtc - set CRTC configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Caller? (FIXME)
 *
 * Build a new CRTC configuration based on user request.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_setcrtc(struct drm_device *dev, void *data,
		     struct drm_file *file_priv)
{
	struct drm_mode_config *config = &dev->mode_config;
	struct drm_mode_crtc *crtc_req = data;
	struct drm_mode_object *obj;
	struct drm_crtc *crtc, *crtcfb;
	struct drm_connector **connector_set = NULL, *connector;
	struct drm_framebuffer *fb = NULL;
	struct drm_display_mode *mode = NULL;
	struct drm_mode_set set;
	uint32_t __user *set_connectors_ptr;
	int ret = 0;
	int i;

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
				   DRM_MODE_OBJECT_CRTC);
	if (!obj) {
		DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
		ret = -EINVAL;
		goto out;
	}
	crtc = obj_to_crtc(obj);
	DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);

	if (crtc_req->mode_valid) {
		/* If we have a mode we need a framebuffer. */
		/* If we pass -1, set the mode with the currently bound fb */
		if (crtc_req->fb_id == -1) {
			list_for_each_entry(crtcfb,
					    &dev->mode_config.crtc_list, head) {
				if (crtcfb == crtc) {
					DRM_DEBUG_KMS("Using current fb for "
							"setmode\n");
					fb = crtc->fb;
				}
			}
		} else {
			obj = drm_mode_object_find(dev, crtc_req->fb_id,
						   DRM_MODE_OBJECT_FB);
			if (!obj) {
				DRM_DEBUG_KMS("Unknown FB ID%d\n",
						crtc_req->fb_id);
				ret = -EINVAL;
				goto out;
			}
			fb = obj_to_fb(obj);
		}

		mode = drm_mode_create(dev);
		drm_crtc_convert_umode(mode, &crtc_req->mode);
		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
	}

	if (crtc_req->count_connectors == 0 && mode) {
		DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
		ret = -EINVAL;
		goto out;
	}

	if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
		DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
			  crtc_req->count_connectors);
		ret = -EINVAL;
		goto out;
	}

	if (crtc_req->count_connectors > 0) {
		u32 out_id;

		/* Avoid unbounded kernel memory allocation */
		if (crtc_req->count_connectors > config->num_connector) {
			ret = -EINVAL;
			goto out;
		}

		connector_set = kmalloc(crtc_req->count_connectors *
					sizeof(struct drm_connector *),
					GFP_KERNEL);
		if (!connector_set) {
			ret = -ENOMEM;
			goto out;
		}

		for (i = 0; i < crtc_req->count_connectors; i++) {
			set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
			if (get_user(out_id, &set_connectors_ptr[i])) {
				ret = -EFAULT;
				goto out;
			}

			obj = drm_mode_object_find(dev, out_id,
						   DRM_MODE_OBJECT_CONNECTOR);
			if (!obj) {
				DRM_DEBUG_KMS("Connector id %d unknown\n",
						out_id);
				ret = -EINVAL;
				goto out;
			}
			connector = obj_to_connector(obj);
			DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
					connector->base.id,
					drm_get_connector_name(connector));

			connector_set[i] = connector;
		}
	}

	set.crtc = crtc;
	set.x = crtc_req->x;
	set.y = crtc_req->y;
	set.mode = mode;
	set.connectors = connector_set;
	set.num_connectors = crtc_req->count_connectors;
	set.fb = fb;
	ret = crtc->funcs->set_config(&set);

out:
	kfree(connector_set);
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

int drm_mode_cursor_ioctl(struct drm_device *dev,
			void *data, struct drm_file *file_priv)
{
	struct drm_mode_cursor *req = data;
	struct drm_mode_object *obj;
	struct drm_crtc *crtc;
	int ret = 0;

	if (!req->flags) {
		DRM_ERROR("no operation set\n");
		return -EINVAL;
	}

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
	if (!obj) {
		DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
		ret = -EINVAL;
		goto out;
	}
	crtc = obj_to_crtc(obj);

	if (req->flags & DRM_MODE_CURSOR_BO) {
		if (!crtc->funcs->cursor_set) {
			DRM_ERROR("crtc does not support cursor\n");
			ret = -ENXIO;
			goto out;
		}
		/* Turns off the cursor if handle is 0 */
		ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
					      req->width, req->height);
	}

	if (req->flags & DRM_MODE_CURSOR_MOVE) {
		if (crtc->funcs->cursor_move) {
			ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
		} else {
			DRM_ERROR("crtc does not support cursor\n");
			ret = -EFAULT;
			goto out;
		}
	}
out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_addfb - add an FB to the graphics configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Takes mode config lock.
 *
 * Add a new FB to the specified CRTC, given a user request.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_addfb(struct drm_device *dev,
		   void *data, struct drm_file *file_priv)
{
	struct drm_mode_fb_cmd *r = data;
	struct drm_mode_config *config = &dev->mode_config;
	struct drm_framebuffer *fb;
	int ret = 0;

	if ((config->min_width > r->width) || (r->width > config->max_width)) {
		DRM_ERROR("mode new framebuffer width not within limits\n");
		return -EINVAL;
	}
	if ((config->min_height > r->height) || (r->height > config->max_height)) {
		DRM_ERROR("mode new framebuffer height not within limits\n");
		return -EINVAL;
	}

	mutex_lock(&dev->mode_config.mutex);

	/* TODO check buffer is sufficently large */
	/* TODO setup destructor callback */

	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
	if (IS_ERR(fb)) {
		DRM_ERROR("could not create framebuffer\n");
		ret = PTR_ERR(fb);
		goto out;
	}

	r->fb_id = fb->base.id;
	list_add(&fb->filp_head, &file_priv->fbs);
	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_rmfb - remove an FB from the configuration
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Takes mode config lock.
 *
 * Remove the FB specified by the user.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_rmfb(struct drm_device *dev,
		   void *data, struct drm_file *file_priv)
{
	struct drm_mode_object *obj;
	struct drm_framebuffer *fb = NULL;
	struct drm_framebuffer *fbl = NULL;
	uint32_t *id = data;
	int ret = 0;
	int found = 0;

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
	/* TODO check that we realy get a framebuffer back. */
	if (!obj) {
		DRM_ERROR("mode invalid framebuffer id\n");
		ret = -EINVAL;
		goto out;
	}
	fb = obj_to_fb(obj);

	list_for_each_entry(fbl, &file_priv->fbs, filp_head)
		if (fb == fbl)
			found = 1;

	if (!found) {
		DRM_ERROR("tried to remove a fb that we didn't own\n");
		ret = -EINVAL;
		goto out;
	}

	/* TODO release all crtc connected to the framebuffer */
	/* TODO unhock the destructor from the buffer object */

	list_del(&fb->filp_head);
	fb->funcs->destroy(fb);

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

/**
 * drm_mode_getfb - get FB info
 * @inode: inode from the ioctl
 * @filp: file * from the ioctl
 * @cmd: cmd from ioctl
 * @arg: arg from ioctl
 *
 * LOCKING:
 * Caller? (FIXME)
 *
 * Lookup the FB given its ID and return info about it.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
int drm_mode_getfb(struct drm_device *dev,
		   void *data, struct drm_file *file_priv)
{
	struct drm_mode_fb_cmd *r = data;
	struct drm_mode_object *obj;
	struct drm_framebuffer *fb;
	int ret = 0;

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
	if (!obj) {
		DRM_ERROR("invalid framebuffer id\n");
		ret = -EINVAL;
		goto out;
	}
	fb = obj_to_fb(obj);

	r->height = fb->height;
	r->width = fb->width;
	r->depth = fb->depth;
	r->bpp = fb->bits_per_pixel;
	r->pitch = fb->pitch;
	fb->funcs->create_handle(fb, file_priv, &r->handle);

out:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}

int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
			   void *data, struct drm_file *file_priv)
{
	struct drm_clip_rect __user *clips_ptr;
	struct drm_clip_rect *clips = NULL;
	struct drm_mode_fb_dirty_cmd *r = data;
	struct drm_mode_object *obj;
	struct drm_framebuffer *fb;
	unsigned flags;
	int num_clips;
	int ret = 0;

	mutex_lock(&dev->mode_config.mutex);
	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
	if (!obj) {
		DRM_ERROR("invalid framebuffer id\n");
		ret = -EINVAL;
		goto out_err1;
	}
	fb = obj_to_fb(obj);

	num_clips = r->num_clips;
	clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;

	if (!num_clips != !clips_ptr) {
		ret = -EINVAL;
		goto out_err1;
	}

	flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;

	/* If userspace annotates copy, clips must come in pairs */
	if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
		ret = -EINVAL;
		goto out_err1;
	}

	if (num_clips && clips_ptr) {
		clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
		if (!clips) {
			ret = -ENOMEM;
			goto out_err1;
		}

		ret = copy_from_user(clips, clips_ptr,
				     num_clips * sizeof(*clips));
		if (ret) {
			ret = -EFAULT;
			goto out_err2;
		}
	}

	if (fb->funcs->dirty) {
		ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
	} else {
		ret = -ENOSYS;
		goto out_err2;
	}

out_err2:
	kfree(clips);
out_err1:
	mutex_unlock(&dev->mode_config.mutex);
	return ret;
}


/**
 * drm_fb_release - remove and free the FBs on this file
 * @filp: file * from the ioctl
 *
 * LOCKING:
 * Takes mode config lock.
 *
 * Destroy all the FBs associated with @filp.
 *
 * Called by the user via ioctl.
 *
 * RETURNS:
 * Zero on success, errno on failure.
 */
void drm_fb_release(struct drm_file *priv)
{
	struct drm_device *dev = priv->minor->dev;
	struct drm_framebuffer *fb, *tfb;

	mutex_lock(&dev->mode_config.mutex);
	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
		list_del(&fb->filp_head);
		fb->funcs->destroy(fb);
	}
	mutex_unlock(&dev->mode_config.mutex);
}

/**
 * drm_mode_attachmode - add a mode to the user mode list
 * @dev: DRM device
 * @connector: connector to add the mode to
 * @mode: mode to add
 *
 * Add @mode to @connector's user mode list.
 */
static int drm_mode_attachmode(struct drm_device *dev,
			       struct drm_connector *connector,
			       struct drm_display_mode *mode)
{
	int ret = 0;

	list_add_tail(&mode->head, &connector->user_modes);
	return ret;
}