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d8f4a9ed TR |
1 | /* |
2 | * Copyright (C) 2012 Avionic Design GmbH | |
3 | * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #include <linux/clk.h> | |
11 | #include <linux/debugfs.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/of.h> | |
14 | #include <linux/platform_device.h> | |
15 | ||
16 | #include <mach/clk.h> | |
17 | ||
18 | #include "drm.h" | |
19 | #include "dc.h" | |
20 | ||
f34bc787 TR |
21 | struct tegra_plane { |
22 | struct drm_plane base; | |
23 | unsigned int index; | |
d8f4a9ed TR |
24 | }; |
25 | ||
f34bc787 TR |
26 | static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane) |
27 | { | |
28 | return container_of(plane, struct tegra_plane, base); | |
29 | } | |
30 | ||
31 | static int tegra_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, | |
32 | struct drm_framebuffer *fb, int crtc_x, | |
33 | int crtc_y, unsigned int crtc_w, | |
34 | unsigned int crtc_h, uint32_t src_x, | |
35 | uint32_t src_y, uint32_t src_w, uint32_t src_h) | |
36 | { | |
37 | struct tegra_plane *p = to_tegra_plane(plane); | |
38 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
39 | struct tegra_dc_window window; | |
40 | unsigned int i; | |
41 | ||
42 | memset(&window, 0, sizeof(window)); | |
43 | window.src.x = src_x >> 16; | |
44 | window.src.y = src_y >> 16; | |
45 | window.src.w = src_w >> 16; | |
46 | window.src.h = src_h >> 16; | |
47 | window.dst.x = crtc_x; | |
48 | window.dst.y = crtc_y; | |
49 | window.dst.w = crtc_w; | |
50 | window.dst.h = crtc_h; | |
51 | window.format = tegra_dc_format(fb->pixel_format); | |
52 | window.bits_per_pixel = fb->bits_per_pixel; | |
53 | ||
54 | for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) { | |
55 | struct drm_gem_cma_object *gem = drm_fb_cma_get_gem_obj(fb, i); | |
56 | ||
57 | window.base[i] = gem->paddr + fb->offsets[i]; | |
58 | ||
59 | /* | |
60 | * Tegra doesn't support different strides for U and V planes | |
61 | * so we display a warning if the user tries to display a | |
62 | * framebuffer with such a configuration. | |
63 | */ | |
64 | if (i >= 2) { | |
65 | if (fb->pitches[i] != window.stride[1]) | |
66 | DRM_ERROR("unsupported UV-plane configuration\n"); | |
67 | } else { | |
68 | window.stride[i] = fb->pitches[i]; | |
69 | } | |
70 | } | |
71 | ||
72 | return tegra_dc_setup_window(dc, p->index, &window); | |
73 | } | |
74 | ||
75 | static int tegra_plane_disable(struct drm_plane *plane) | |
76 | { | |
77 | struct tegra_dc *dc = to_tegra_dc(plane->crtc); | |
78 | struct tegra_plane *p = to_tegra_plane(plane); | |
79 | unsigned long value; | |
80 | ||
81 | value = WINDOW_A_SELECT << p->index; | |
82 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
83 | ||
84 | value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); | |
85 | value &= ~WIN_ENABLE; | |
86 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
87 | ||
88 | tegra_dc_writel(dc, WIN_A_UPDATE << p->index, DC_CMD_STATE_CONTROL); | |
89 | tegra_dc_writel(dc, WIN_A_ACT_REQ << p->index, DC_CMD_STATE_CONTROL); | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | static void tegra_plane_destroy(struct drm_plane *plane) | |
95 | { | |
96 | tegra_plane_disable(plane); | |
97 | drm_plane_cleanup(plane); | |
98 | } | |
99 | ||
100 | static const struct drm_plane_funcs tegra_plane_funcs = { | |
101 | .update_plane = tegra_plane_update, | |
102 | .disable_plane = tegra_plane_disable, | |
103 | .destroy = tegra_plane_destroy, | |
104 | }; | |
105 | ||
106 | static const uint32_t plane_formats[] = { | |
107 | DRM_FORMAT_XRGB8888, | |
108 | DRM_FORMAT_UYVY, | |
109 | DRM_FORMAT_YUV420, | |
110 | DRM_FORMAT_YUV422, | |
111 | }; | |
112 | ||
113 | static int tegra_dc_add_planes(struct drm_device *drm, struct tegra_dc *dc) | |
114 | { | |
115 | unsigned int i; | |
116 | int err = 0; | |
117 | ||
118 | for (i = 0; i < 2; i++) { | |
119 | struct tegra_plane *plane; | |
120 | ||
121 | plane = devm_kzalloc(drm->dev, sizeof(*plane), GFP_KERNEL); | |
122 | if (!plane) | |
123 | return -ENOMEM; | |
124 | ||
125 | plane->index = 1 + i; | |
126 | ||
127 | err = drm_plane_init(drm, &plane->base, 1 << dc->pipe, | |
128 | &tegra_plane_funcs, plane_formats, | |
129 | ARRAY_SIZE(plane_formats), false); | |
130 | if (err < 0) | |
131 | return err; | |
132 | } | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
23fb4740 TR |
137 | static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y, |
138 | struct drm_framebuffer *fb) | |
139 | { | |
140 | struct drm_gem_cma_object *gem = drm_fb_cma_get_gem_obj(fb, 0); | |
141 | unsigned long value; | |
142 | ||
143 | tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER); | |
144 | ||
145 | value = fb->offsets[0] + y * fb->pitches[0] + | |
146 | x * fb->bits_per_pixel / 8; | |
147 | ||
148 | tegra_dc_writel(dc, gem->paddr + value, DC_WINBUF_START_ADDR); | |
149 | tegra_dc_writel(dc, fb->pitches[0], DC_WIN_LINE_STRIDE); | |
150 | ||
151 | value = GENERAL_UPDATE | WIN_A_UPDATE; | |
152 | tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); | |
153 | ||
154 | value = GENERAL_ACT_REQ | WIN_A_ACT_REQ; | |
155 | tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
6e5ff998 TR |
160 | void tegra_dc_enable_vblank(struct tegra_dc *dc) |
161 | { | |
162 | unsigned long value, flags; | |
163 | ||
164 | spin_lock_irqsave(&dc->lock, flags); | |
165 | ||
166 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
167 | value |= VBLANK_INT; | |
168 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
169 | ||
170 | spin_unlock_irqrestore(&dc->lock, flags); | |
171 | } | |
172 | ||
173 | void tegra_dc_disable_vblank(struct tegra_dc *dc) | |
174 | { | |
175 | unsigned long value, flags; | |
176 | ||
177 | spin_lock_irqsave(&dc->lock, flags); | |
178 | ||
179 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
180 | value &= ~VBLANK_INT; | |
181 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
182 | ||
183 | spin_unlock_irqrestore(&dc->lock, flags); | |
184 | } | |
185 | ||
3c03c46a TR |
186 | static void tegra_dc_finish_page_flip(struct tegra_dc *dc) |
187 | { | |
188 | struct drm_device *drm = dc->base.dev; | |
189 | struct drm_crtc *crtc = &dc->base; | |
190 | struct drm_gem_cma_object *gem; | |
191 | unsigned long flags, base; | |
192 | ||
193 | if (!dc->event) | |
194 | return; | |
195 | ||
196 | gem = drm_fb_cma_get_gem_obj(crtc->fb, 0); | |
197 | ||
198 | /* check if new start address has been latched */ | |
199 | tegra_dc_writel(dc, READ_MUX, DC_CMD_STATE_ACCESS); | |
200 | base = tegra_dc_readl(dc, DC_WINBUF_START_ADDR); | |
201 | tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); | |
202 | ||
203 | if (base == gem->paddr + crtc->fb->offsets[0]) { | |
204 | spin_lock_irqsave(&drm->event_lock, flags); | |
205 | drm_send_vblank_event(drm, dc->pipe, dc->event); | |
206 | drm_vblank_put(drm, dc->pipe); | |
207 | dc->event = NULL; | |
208 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
209 | } | |
210 | } | |
211 | ||
212 | void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file) | |
213 | { | |
214 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
215 | struct drm_device *drm = crtc->dev; | |
216 | unsigned long flags; | |
217 | ||
218 | spin_lock_irqsave(&drm->event_lock, flags); | |
219 | ||
220 | if (dc->event && dc->event->base.file_priv == file) { | |
221 | dc->event->base.destroy(&dc->event->base); | |
222 | drm_vblank_put(drm, dc->pipe); | |
223 | dc->event = NULL; | |
224 | } | |
225 | ||
226 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
227 | } | |
228 | ||
229 | static int tegra_dc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, | |
230 | struct drm_pending_vblank_event *event) | |
231 | { | |
232 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
233 | struct drm_device *drm = crtc->dev; | |
234 | ||
235 | if (dc->event) | |
236 | return -EBUSY; | |
237 | ||
238 | if (event) { | |
239 | event->pipe = dc->pipe; | |
240 | dc->event = event; | |
241 | drm_vblank_get(drm, dc->pipe); | |
242 | } | |
243 | ||
244 | tegra_dc_set_base(dc, 0, 0, fb); | |
245 | crtc->fb = fb; | |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
d8f4a9ed | 250 | static const struct drm_crtc_funcs tegra_crtc_funcs = { |
3c03c46a | 251 | .page_flip = tegra_dc_page_flip, |
d8f4a9ed TR |
252 | .set_config = drm_crtc_helper_set_config, |
253 | .destroy = drm_crtc_cleanup, | |
254 | }; | |
255 | ||
f34bc787 | 256 | static void tegra_crtc_disable(struct drm_crtc *crtc) |
d8f4a9ed | 257 | { |
f34bc787 TR |
258 | struct drm_device *drm = crtc->dev; |
259 | struct drm_plane *plane; | |
260 | ||
261 | list_for_each_entry(plane, &drm->mode_config.plane_list, head) { | |
262 | if (plane->crtc == crtc) { | |
263 | tegra_plane_disable(plane); | |
264 | plane->crtc = NULL; | |
265 | ||
266 | if (plane->fb) { | |
267 | drm_framebuffer_unreference(plane->fb); | |
268 | plane->fb = NULL; | |
269 | } | |
270 | } | |
271 | } | |
d8f4a9ed TR |
272 | } |
273 | ||
274 | static bool tegra_crtc_mode_fixup(struct drm_crtc *crtc, | |
275 | const struct drm_display_mode *mode, | |
276 | struct drm_display_mode *adjusted) | |
277 | { | |
278 | return true; | |
279 | } | |
280 | ||
f34bc787 | 281 | static inline u32 compute_dda_inc(unsigned int in, unsigned int out, bool v, |
d8f4a9ed TR |
282 | unsigned int bpp) |
283 | { | |
284 | fixed20_12 outf = dfixed_init(out); | |
f34bc787 | 285 | fixed20_12 inf = dfixed_init(in); |
d8f4a9ed TR |
286 | u32 dda_inc; |
287 | int max; | |
288 | ||
289 | if (v) | |
290 | max = 15; | |
291 | else { | |
292 | switch (bpp) { | |
293 | case 2: | |
294 | max = 8; | |
295 | break; | |
296 | ||
297 | default: | |
298 | WARN_ON_ONCE(1); | |
299 | /* fallthrough */ | |
300 | case 4: | |
301 | max = 4; | |
302 | break; | |
303 | } | |
304 | } | |
305 | ||
306 | outf.full = max_t(u32, outf.full - dfixed_const(1), dfixed_const(1)); | |
307 | inf.full -= dfixed_const(1); | |
308 | ||
309 | dda_inc = dfixed_div(inf, outf); | |
310 | dda_inc = min_t(u32, dda_inc, dfixed_const(max)); | |
311 | ||
312 | return dda_inc; | |
313 | } | |
314 | ||
f34bc787 | 315 | static inline u32 compute_initial_dda(unsigned int in) |
d8f4a9ed | 316 | { |
f34bc787 TR |
317 | fixed20_12 inf = dfixed_init(in); |
318 | return dfixed_frac(inf); | |
d8f4a9ed TR |
319 | } |
320 | ||
321 | static int tegra_dc_set_timings(struct tegra_dc *dc, | |
322 | struct drm_display_mode *mode) | |
323 | { | |
324 | /* TODO: For HDMI compliance, h & v ref_to_sync should be set to 1 */ | |
325 | unsigned int h_ref_to_sync = 0; | |
326 | unsigned int v_ref_to_sync = 0; | |
327 | unsigned long value; | |
328 | ||
329 | tegra_dc_writel(dc, 0x0, DC_DISP_DISP_TIMING_OPTIONS); | |
330 | ||
331 | value = (v_ref_to_sync << 16) | h_ref_to_sync; | |
332 | tegra_dc_writel(dc, value, DC_DISP_REF_TO_SYNC); | |
333 | ||
334 | value = ((mode->vsync_end - mode->vsync_start) << 16) | | |
335 | ((mode->hsync_end - mode->hsync_start) << 0); | |
336 | tegra_dc_writel(dc, value, DC_DISP_SYNC_WIDTH); | |
337 | ||
d8f4a9ed TR |
338 | value = ((mode->vtotal - mode->vsync_end) << 16) | |
339 | ((mode->htotal - mode->hsync_end) << 0); | |
40495089 LS |
340 | tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH); |
341 | ||
342 | value = ((mode->vsync_start - mode->vdisplay) << 16) | | |
343 | ((mode->hsync_start - mode->hdisplay) << 0); | |
d8f4a9ed TR |
344 | tegra_dc_writel(dc, value, DC_DISP_FRONT_PORCH); |
345 | ||
346 | value = (mode->vdisplay << 16) | mode->hdisplay; | |
347 | tegra_dc_writel(dc, value, DC_DISP_ACTIVE); | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | static int tegra_crtc_setup_clk(struct drm_crtc *crtc, | |
353 | struct drm_display_mode *mode, | |
354 | unsigned long *div) | |
355 | { | |
356 | unsigned long pclk = mode->clock * 1000, rate; | |
357 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
358 | struct tegra_output *output = NULL; | |
359 | struct drm_encoder *encoder; | |
360 | long err; | |
361 | ||
362 | list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list, head) | |
363 | if (encoder->crtc == crtc) { | |
364 | output = encoder_to_output(encoder); | |
365 | break; | |
366 | } | |
367 | ||
368 | if (!output) | |
369 | return -ENODEV; | |
370 | ||
371 | /* | |
372 | * This assumes that the display controller will divide its parent | |
373 | * clock by 2 to generate the pixel clock. | |
374 | */ | |
375 | err = tegra_output_setup_clock(output, dc->clk, pclk * 2); | |
376 | if (err < 0) { | |
377 | dev_err(dc->dev, "failed to setup clock: %ld\n", err); | |
378 | return err; | |
379 | } | |
380 | ||
381 | rate = clk_get_rate(dc->clk); | |
382 | *div = (rate * 2 / pclk) - 2; | |
383 | ||
384 | DRM_DEBUG_KMS("rate: %lu, div: %lu\n", rate, *div); | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
f34bc787 TR |
389 | static bool tegra_dc_format_is_yuv(unsigned int format, bool *planar) |
390 | { | |
391 | switch (format) { | |
392 | case WIN_COLOR_DEPTH_YCbCr422: | |
393 | case WIN_COLOR_DEPTH_YUV422: | |
394 | if (planar) | |
395 | *planar = false; | |
396 | ||
397 | return true; | |
398 | ||
399 | case WIN_COLOR_DEPTH_YCbCr420P: | |
400 | case WIN_COLOR_DEPTH_YUV420P: | |
401 | case WIN_COLOR_DEPTH_YCbCr422P: | |
402 | case WIN_COLOR_DEPTH_YUV422P: | |
403 | case WIN_COLOR_DEPTH_YCbCr422R: | |
404 | case WIN_COLOR_DEPTH_YUV422R: | |
405 | case WIN_COLOR_DEPTH_YCbCr422RA: | |
406 | case WIN_COLOR_DEPTH_YUV422RA: | |
407 | if (planar) | |
408 | *planar = true; | |
409 | ||
410 | return true; | |
411 | } | |
412 | ||
413 | return false; | |
414 | } | |
415 | ||
416 | int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, | |
417 | const struct tegra_dc_window *window) | |
418 | { | |
419 | unsigned h_offset, v_offset, h_size, v_size, h_dda, v_dda, bpp; | |
420 | unsigned long value; | |
421 | bool yuv, planar; | |
422 | ||
423 | /* | |
424 | * For YUV planar modes, the number of bytes per pixel takes into | |
425 | * account only the luma component and therefore is 1. | |
426 | */ | |
427 | yuv = tegra_dc_format_is_yuv(window->format, &planar); | |
428 | if (!yuv) | |
429 | bpp = window->bits_per_pixel / 8; | |
430 | else | |
431 | bpp = planar ? 1 : 2; | |
432 | ||
433 | value = WINDOW_A_SELECT << index; | |
434 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
435 | ||
436 | tegra_dc_writel(dc, window->format, DC_WIN_COLOR_DEPTH); | |
437 | tegra_dc_writel(dc, 0, DC_WIN_BYTE_SWAP); | |
438 | ||
439 | value = V_POSITION(window->dst.y) | H_POSITION(window->dst.x); | |
440 | tegra_dc_writel(dc, value, DC_WIN_POSITION); | |
441 | ||
442 | value = V_SIZE(window->dst.h) | H_SIZE(window->dst.w); | |
443 | tegra_dc_writel(dc, value, DC_WIN_SIZE); | |
444 | ||
445 | h_offset = window->src.x * bpp; | |
446 | v_offset = window->src.y; | |
447 | h_size = window->src.w * bpp; | |
448 | v_size = window->src.h; | |
449 | ||
450 | value = V_PRESCALED_SIZE(v_size) | H_PRESCALED_SIZE(h_size); | |
451 | tegra_dc_writel(dc, value, DC_WIN_PRESCALED_SIZE); | |
452 | ||
453 | /* | |
454 | * For DDA computations the number of bytes per pixel for YUV planar | |
455 | * modes needs to take into account all Y, U and V components. | |
456 | */ | |
457 | if (yuv && planar) | |
458 | bpp = 2; | |
459 | ||
460 | h_dda = compute_dda_inc(window->src.w, window->dst.w, false, bpp); | |
461 | v_dda = compute_dda_inc(window->src.h, window->dst.h, true, bpp); | |
462 | ||
463 | value = V_DDA_INC(v_dda) | H_DDA_INC(h_dda); | |
464 | tegra_dc_writel(dc, value, DC_WIN_DDA_INC); | |
465 | ||
466 | h_dda = compute_initial_dda(window->src.x); | |
467 | v_dda = compute_initial_dda(window->src.y); | |
468 | ||
469 | tegra_dc_writel(dc, h_dda, DC_WIN_H_INITIAL_DDA); | |
470 | tegra_dc_writel(dc, v_dda, DC_WIN_V_INITIAL_DDA); | |
471 | ||
472 | tegra_dc_writel(dc, 0, DC_WIN_UV_BUF_STRIDE); | |
473 | tegra_dc_writel(dc, 0, DC_WIN_BUF_STRIDE); | |
474 | ||
475 | tegra_dc_writel(dc, window->base[0], DC_WINBUF_START_ADDR); | |
476 | ||
477 | if (yuv && planar) { | |
478 | tegra_dc_writel(dc, window->base[1], DC_WINBUF_START_ADDR_U); | |
479 | tegra_dc_writel(dc, window->base[2], DC_WINBUF_START_ADDR_V); | |
480 | value = window->stride[1] << 16 | window->stride[0]; | |
481 | tegra_dc_writel(dc, value, DC_WIN_LINE_STRIDE); | |
482 | } else { | |
483 | tegra_dc_writel(dc, window->stride[0], DC_WIN_LINE_STRIDE); | |
484 | } | |
485 | ||
486 | tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); | |
487 | tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); | |
488 | ||
489 | value = WIN_ENABLE; | |
490 | ||
491 | if (yuv) { | |
492 | /* setup default colorspace conversion coefficients */ | |
493 | tegra_dc_writel(dc, 0x00f0, DC_WIN_CSC_YOF); | |
494 | tegra_dc_writel(dc, 0x012a, DC_WIN_CSC_KYRGB); | |
495 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KUR); | |
496 | tegra_dc_writel(dc, 0x0198, DC_WIN_CSC_KVR); | |
497 | tegra_dc_writel(dc, 0x039b, DC_WIN_CSC_KUG); | |
498 | tegra_dc_writel(dc, 0x032f, DC_WIN_CSC_KVG); | |
499 | tegra_dc_writel(dc, 0x0204, DC_WIN_CSC_KUB); | |
500 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KVB); | |
501 | ||
502 | value |= CSC_ENABLE; | |
503 | } else if (bpp < 24) { | |
504 | value |= COLOR_EXPAND; | |
505 | } | |
506 | ||
507 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
508 | ||
509 | /* | |
510 | * Disable blending and assume Window A is the bottom-most window, | |
511 | * Window C is the top-most window and Window B is in the middle. | |
512 | */ | |
513 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_NOKEY); | |
514 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_1WIN); | |
515 | ||
516 | switch (index) { | |
517 | case 0: | |
518 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_X); | |
519 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
520 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
521 | break; | |
522 | ||
523 | case 1: | |
524 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
525 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
526 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
527 | break; | |
528 | ||
529 | case 2: | |
530 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
531 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_Y); | |
532 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_3WIN_XY); | |
533 | break; | |
534 | } | |
535 | ||
536 | tegra_dc_writel(dc, WIN_A_UPDATE << index, DC_CMD_STATE_CONTROL); | |
537 | tegra_dc_writel(dc, WIN_A_ACT_REQ << index, DC_CMD_STATE_CONTROL); | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
542 | unsigned int tegra_dc_format(uint32_t format) | |
543 | { | |
544 | switch (format) { | |
545 | case DRM_FORMAT_XRGB8888: | |
546 | return WIN_COLOR_DEPTH_B8G8R8A8; | |
547 | ||
548 | case DRM_FORMAT_RGB565: | |
549 | return WIN_COLOR_DEPTH_B5G6R5; | |
550 | ||
551 | case DRM_FORMAT_UYVY: | |
552 | return WIN_COLOR_DEPTH_YCbCr422; | |
553 | ||
554 | case DRM_FORMAT_YUV420: | |
555 | return WIN_COLOR_DEPTH_YCbCr420P; | |
556 | ||
557 | case DRM_FORMAT_YUV422: | |
558 | return WIN_COLOR_DEPTH_YCbCr422P; | |
559 | ||
560 | default: | |
561 | break; | |
562 | } | |
563 | ||
564 | WARN(1, "unsupported pixel format %u, using default\n", format); | |
565 | return WIN_COLOR_DEPTH_B8G8R8A8; | |
566 | } | |
567 | ||
d8f4a9ed TR |
568 | static int tegra_crtc_mode_set(struct drm_crtc *crtc, |
569 | struct drm_display_mode *mode, | |
570 | struct drm_display_mode *adjusted, | |
571 | int x, int y, struct drm_framebuffer *old_fb) | |
572 | { | |
894752bb | 573 | struct drm_gem_cma_object *gem = drm_fb_cma_get_gem_obj(crtc->fb, 0); |
d8f4a9ed | 574 | struct tegra_dc *dc = to_tegra_dc(crtc); |
f34bc787 | 575 | struct tegra_dc_window window; |
d8f4a9ed TR |
576 | unsigned long div, value; |
577 | int err; | |
578 | ||
6e5ff998 TR |
579 | drm_vblank_pre_modeset(crtc->dev, dc->pipe); |
580 | ||
d8f4a9ed TR |
581 | err = tegra_crtc_setup_clk(crtc, mode, &div); |
582 | if (err) { | |
583 | dev_err(dc->dev, "failed to setup clock for CRTC: %d\n", err); | |
584 | return err; | |
585 | } | |
586 | ||
587 | /* program display mode */ | |
588 | tegra_dc_set_timings(dc, mode); | |
589 | ||
590 | value = DE_SELECT_ACTIVE | DE_CONTROL_NORMAL; | |
591 | tegra_dc_writel(dc, value, DC_DISP_DATA_ENABLE_OPTIONS); | |
592 | ||
593 | value = tegra_dc_readl(dc, DC_COM_PIN_OUTPUT_POLARITY(1)); | |
594 | value &= ~LVS_OUTPUT_POLARITY_LOW; | |
595 | value &= ~LHS_OUTPUT_POLARITY_LOW; | |
596 | tegra_dc_writel(dc, value, DC_COM_PIN_OUTPUT_POLARITY(1)); | |
597 | ||
598 | value = DISP_DATA_FORMAT_DF1P1C | DISP_ALIGNMENT_MSB | | |
599 | DISP_ORDER_RED_BLUE; | |
600 | tegra_dc_writel(dc, value, DC_DISP_DISP_INTERFACE_CONTROL); | |
601 | ||
602 | tegra_dc_writel(dc, 0x00010001, DC_DISP_SHIFT_CLOCK_OPTIONS); | |
603 | ||
604 | value = SHIFT_CLK_DIVIDER(div) | PIXEL_CLK_DIVIDER_PCD1; | |
605 | tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL); | |
606 | ||
607 | /* setup window parameters */ | |
f34bc787 TR |
608 | memset(&window, 0, sizeof(window)); |
609 | window.src.x = 0; | |
610 | window.src.y = 0; | |
611 | window.src.w = mode->hdisplay; | |
612 | window.src.h = mode->vdisplay; | |
613 | window.dst.x = 0; | |
614 | window.dst.y = 0; | |
615 | window.dst.w = mode->hdisplay; | |
616 | window.dst.h = mode->vdisplay; | |
617 | window.format = tegra_dc_format(crtc->fb->pixel_format); | |
618 | window.bits_per_pixel = crtc->fb->bits_per_pixel; | |
619 | window.stride[0] = crtc->fb->pitches[0]; | |
620 | window.base[0] = gem->paddr; | |
621 | ||
622 | err = tegra_dc_setup_window(dc, 0, &window); | |
623 | if (err < 0) | |
624 | dev_err(dc->dev, "failed to enable root plane\n"); | |
d8f4a9ed TR |
625 | |
626 | return 0; | |
627 | } | |
628 | ||
23fb4740 TR |
629 | static int tegra_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, |
630 | struct drm_framebuffer *old_fb) | |
631 | { | |
632 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
633 | ||
634 | return tegra_dc_set_base(dc, x, y, crtc->fb); | |
635 | } | |
636 | ||
d8f4a9ed TR |
637 | static void tegra_crtc_prepare(struct drm_crtc *crtc) |
638 | { | |
639 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
640 | unsigned int syncpt; | |
641 | unsigned long value; | |
642 | ||
643 | /* hardware initialization */ | |
644 | tegra_periph_reset_deassert(dc->clk); | |
645 | usleep_range(10000, 20000); | |
646 | ||
647 | if (dc->pipe) | |
648 | syncpt = SYNCPT_VBLANK1; | |
649 | else | |
650 | syncpt = SYNCPT_VBLANK0; | |
651 | ||
652 | /* initialize display controller */ | |
653 | tegra_dc_writel(dc, 0x00000100, DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
654 | tegra_dc_writel(dc, 0x100 | syncpt, DC_CMD_CONT_SYNCPT_VSYNC); | |
655 | ||
656 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | WIN_A_OF_INT; | |
657 | tegra_dc_writel(dc, value, DC_CMD_INT_TYPE); | |
658 | ||
659 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | | |
660 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
661 | tegra_dc_writel(dc, value, DC_CMD_INT_POLARITY); | |
662 | ||
663 | value = PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | | |
664 | PW4_ENABLE | PM0_ENABLE | PM1_ENABLE; | |
665 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL); | |
666 | ||
667 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND); | |
668 | value |= DISP_CTRL_MODE_C_DISPLAY; | |
669 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND); | |
670 | ||
671 | /* initialize timer */ | |
672 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(0x20) | | |
673 | WINDOW_B_THRESHOLD(0x20) | WINDOW_C_THRESHOLD(0x20); | |
674 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
675 | ||
676 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(1) | | |
677 | WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1); | |
678 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
679 | ||
d8f4a9ed TR |
680 | value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT; |
681 | tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE); | |
6e5ff998 TR |
682 | |
683 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT; | |
684 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
d8f4a9ed TR |
685 | } |
686 | ||
687 | static void tegra_crtc_commit(struct drm_crtc *crtc) | |
688 | { | |
689 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
d8f4a9ed TR |
690 | unsigned long value; |
691 | ||
6e5ff998 TR |
692 | value = GENERAL_ACT_REQ | WIN_A_ACT_REQ | |
693 | GENERAL_UPDATE | WIN_A_UPDATE; | |
d8f4a9ed | 694 | |
6e5ff998 | 695 | tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); |
d8f4a9ed | 696 | |
6e5ff998 | 697 | drm_vblank_post_modeset(crtc->dev, dc->pipe); |
d8f4a9ed TR |
698 | } |
699 | ||
700 | static void tegra_crtc_load_lut(struct drm_crtc *crtc) | |
701 | { | |
702 | } | |
703 | ||
704 | static const struct drm_crtc_helper_funcs tegra_crtc_helper_funcs = { | |
f34bc787 | 705 | .disable = tegra_crtc_disable, |
d8f4a9ed TR |
706 | .mode_fixup = tegra_crtc_mode_fixup, |
707 | .mode_set = tegra_crtc_mode_set, | |
23fb4740 | 708 | .mode_set_base = tegra_crtc_mode_set_base, |
d8f4a9ed TR |
709 | .prepare = tegra_crtc_prepare, |
710 | .commit = tegra_crtc_commit, | |
711 | .load_lut = tegra_crtc_load_lut, | |
712 | }; | |
713 | ||
6e5ff998 | 714 | static irqreturn_t tegra_dc_irq(int irq, void *data) |
d8f4a9ed TR |
715 | { |
716 | struct tegra_dc *dc = data; | |
717 | unsigned long status; | |
718 | ||
719 | status = tegra_dc_readl(dc, DC_CMD_INT_STATUS); | |
720 | tegra_dc_writel(dc, status, DC_CMD_INT_STATUS); | |
721 | ||
722 | if (status & FRAME_END_INT) { | |
723 | /* | |
724 | dev_dbg(dc->dev, "%s(): frame end\n", __func__); | |
725 | */ | |
726 | } | |
727 | ||
728 | if (status & VBLANK_INT) { | |
729 | /* | |
730 | dev_dbg(dc->dev, "%s(): vertical blank\n", __func__); | |
731 | */ | |
732 | drm_handle_vblank(dc->base.dev, dc->pipe); | |
3c03c46a | 733 | tegra_dc_finish_page_flip(dc); |
d8f4a9ed TR |
734 | } |
735 | ||
736 | if (status & (WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT)) { | |
737 | /* | |
738 | dev_dbg(dc->dev, "%s(): underflow\n", __func__); | |
739 | */ | |
740 | } | |
741 | ||
742 | return IRQ_HANDLED; | |
743 | } | |
744 | ||
745 | static int tegra_dc_show_regs(struct seq_file *s, void *data) | |
746 | { | |
747 | struct drm_info_node *node = s->private; | |
748 | struct tegra_dc *dc = node->info_ent->data; | |
749 | ||
750 | #define DUMP_REG(name) \ | |
751 | seq_printf(s, "%-40s %#05x %08lx\n", #name, name, \ | |
752 | tegra_dc_readl(dc, name)) | |
753 | ||
754 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT); | |
755 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
756 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_ERROR); | |
757 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT); | |
758 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_CNTRL); | |
759 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_ERROR); | |
760 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT); | |
761 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_CNTRL); | |
762 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_ERROR); | |
763 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT); | |
764 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_CNTRL); | |
765 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_ERROR); | |
766 | DUMP_REG(DC_CMD_CONT_SYNCPT_VSYNC); | |
767 | DUMP_REG(DC_CMD_DISPLAY_COMMAND_OPTION0); | |
768 | DUMP_REG(DC_CMD_DISPLAY_COMMAND); | |
769 | DUMP_REG(DC_CMD_SIGNAL_RAISE); | |
770 | DUMP_REG(DC_CMD_DISPLAY_POWER_CONTROL); | |
771 | DUMP_REG(DC_CMD_INT_STATUS); | |
772 | DUMP_REG(DC_CMD_INT_MASK); | |
773 | DUMP_REG(DC_CMD_INT_ENABLE); | |
774 | DUMP_REG(DC_CMD_INT_TYPE); | |
775 | DUMP_REG(DC_CMD_INT_POLARITY); | |
776 | DUMP_REG(DC_CMD_SIGNAL_RAISE1); | |
777 | DUMP_REG(DC_CMD_SIGNAL_RAISE2); | |
778 | DUMP_REG(DC_CMD_SIGNAL_RAISE3); | |
779 | DUMP_REG(DC_CMD_STATE_ACCESS); | |
780 | DUMP_REG(DC_CMD_STATE_CONTROL); | |
781 | DUMP_REG(DC_CMD_DISPLAY_WINDOW_HEADER); | |
782 | DUMP_REG(DC_CMD_REG_ACT_CONTROL); | |
783 | DUMP_REG(DC_COM_CRC_CONTROL); | |
784 | DUMP_REG(DC_COM_CRC_CHECKSUM); | |
785 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(0)); | |
786 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(1)); | |
787 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(2)); | |
788 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(3)); | |
789 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(0)); | |
790 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(1)); | |
791 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(2)); | |
792 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(3)); | |
793 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(0)); | |
794 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(1)); | |
795 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(2)); | |
796 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(3)); | |
797 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(0)); | |
798 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(1)); | |
799 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(2)); | |
800 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(3)); | |
801 | DUMP_REG(DC_COM_PIN_INPUT_DATA(0)); | |
802 | DUMP_REG(DC_COM_PIN_INPUT_DATA(1)); | |
803 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(0)); | |
804 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(1)); | |
805 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(2)); | |
806 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(3)); | |
807 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(4)); | |
808 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(5)); | |
809 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(6)); | |
810 | DUMP_REG(DC_COM_PIN_MISC_CONTROL); | |
811 | DUMP_REG(DC_COM_PIN_PM0_CONTROL); | |
812 | DUMP_REG(DC_COM_PIN_PM0_DUTY_CYCLE); | |
813 | DUMP_REG(DC_COM_PIN_PM1_CONTROL); | |
814 | DUMP_REG(DC_COM_PIN_PM1_DUTY_CYCLE); | |
815 | DUMP_REG(DC_COM_SPI_CONTROL); | |
816 | DUMP_REG(DC_COM_SPI_START_BYTE); | |
817 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_AB); | |
818 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_CD); | |
819 | DUMP_REG(DC_COM_HSPI_CS_DC); | |
820 | DUMP_REG(DC_COM_SCRATCH_REGISTER_A); | |
821 | DUMP_REG(DC_COM_SCRATCH_REGISTER_B); | |
822 | DUMP_REG(DC_COM_GPIO_CTRL); | |
823 | DUMP_REG(DC_COM_GPIO_DEBOUNCE_COUNTER); | |
824 | DUMP_REG(DC_COM_CRC_CHECKSUM_LATCHED); | |
825 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS0); | |
826 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS1); | |
827 | DUMP_REG(DC_DISP_DISP_WIN_OPTIONS); | |
828 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
829 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
830 | DUMP_REG(DC_DISP_DISP_TIMING_OPTIONS); | |
831 | DUMP_REG(DC_DISP_REF_TO_SYNC); | |
832 | DUMP_REG(DC_DISP_SYNC_WIDTH); | |
833 | DUMP_REG(DC_DISP_BACK_PORCH); | |
834 | DUMP_REG(DC_DISP_ACTIVE); | |
835 | DUMP_REG(DC_DISP_FRONT_PORCH); | |
836 | DUMP_REG(DC_DISP_H_PULSE0_CONTROL); | |
837 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_A); | |
838 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_B); | |
839 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_C); | |
840 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_D); | |
841 | DUMP_REG(DC_DISP_H_PULSE1_CONTROL); | |
842 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_A); | |
843 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_B); | |
844 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_C); | |
845 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_D); | |
846 | DUMP_REG(DC_DISP_H_PULSE2_CONTROL); | |
847 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_A); | |
848 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_B); | |
849 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_C); | |
850 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_D); | |
851 | DUMP_REG(DC_DISP_V_PULSE0_CONTROL); | |
852 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_A); | |
853 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_B); | |
854 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_C); | |
855 | DUMP_REG(DC_DISP_V_PULSE1_CONTROL); | |
856 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_A); | |
857 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_B); | |
858 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_C); | |
859 | DUMP_REG(DC_DISP_V_PULSE2_CONTROL); | |
860 | DUMP_REG(DC_DISP_V_PULSE2_POSITION_A); | |
861 | DUMP_REG(DC_DISP_V_PULSE3_CONTROL); | |
862 | DUMP_REG(DC_DISP_V_PULSE3_POSITION_A); | |
863 | DUMP_REG(DC_DISP_M0_CONTROL); | |
864 | DUMP_REG(DC_DISP_M1_CONTROL); | |
865 | DUMP_REG(DC_DISP_DI_CONTROL); | |
866 | DUMP_REG(DC_DISP_PP_CONTROL); | |
867 | DUMP_REG(DC_DISP_PP_SELECT_A); | |
868 | DUMP_REG(DC_DISP_PP_SELECT_B); | |
869 | DUMP_REG(DC_DISP_PP_SELECT_C); | |
870 | DUMP_REG(DC_DISP_PP_SELECT_D); | |
871 | DUMP_REG(DC_DISP_DISP_CLOCK_CONTROL); | |
872 | DUMP_REG(DC_DISP_DISP_INTERFACE_CONTROL); | |
873 | DUMP_REG(DC_DISP_DISP_COLOR_CONTROL); | |
874 | DUMP_REG(DC_DISP_SHIFT_CLOCK_OPTIONS); | |
875 | DUMP_REG(DC_DISP_DATA_ENABLE_OPTIONS); | |
876 | DUMP_REG(DC_DISP_SERIAL_INTERFACE_OPTIONS); | |
877 | DUMP_REG(DC_DISP_LCD_SPI_OPTIONS); | |
878 | DUMP_REG(DC_DISP_BORDER_COLOR); | |
879 | DUMP_REG(DC_DISP_COLOR_KEY0_LOWER); | |
880 | DUMP_REG(DC_DISP_COLOR_KEY0_UPPER); | |
881 | DUMP_REG(DC_DISP_COLOR_KEY1_LOWER); | |
882 | DUMP_REG(DC_DISP_COLOR_KEY1_UPPER); | |
883 | DUMP_REG(DC_DISP_CURSOR_FOREGROUND); | |
884 | DUMP_REG(DC_DISP_CURSOR_BACKGROUND); | |
885 | DUMP_REG(DC_DISP_CURSOR_START_ADDR); | |
886 | DUMP_REG(DC_DISP_CURSOR_START_ADDR_NS); | |
887 | DUMP_REG(DC_DISP_CURSOR_POSITION); | |
888 | DUMP_REG(DC_DISP_CURSOR_POSITION_NS); | |
889 | DUMP_REG(DC_DISP_INIT_SEQ_CONTROL); | |
890 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_A); | |
891 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_B); | |
892 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_C); | |
893 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_D); | |
894 | DUMP_REG(DC_DISP_DC_MCCIF_FIFOCTRL); | |
895 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0A_HYST); | |
896 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0B_HYST); | |
897 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1A_HYST); | |
898 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1B_HYST); | |
899 | DUMP_REG(DC_DISP_DAC_CRT_CTRL); | |
900 | DUMP_REG(DC_DISP_DISP_MISC_CONTROL); | |
901 | DUMP_REG(DC_DISP_SD_CONTROL); | |
902 | DUMP_REG(DC_DISP_SD_CSC_COEFF); | |
903 | DUMP_REG(DC_DISP_SD_LUT(0)); | |
904 | DUMP_REG(DC_DISP_SD_LUT(1)); | |
905 | DUMP_REG(DC_DISP_SD_LUT(2)); | |
906 | DUMP_REG(DC_DISP_SD_LUT(3)); | |
907 | DUMP_REG(DC_DISP_SD_LUT(4)); | |
908 | DUMP_REG(DC_DISP_SD_LUT(5)); | |
909 | DUMP_REG(DC_DISP_SD_LUT(6)); | |
910 | DUMP_REG(DC_DISP_SD_LUT(7)); | |
911 | DUMP_REG(DC_DISP_SD_LUT(8)); | |
912 | DUMP_REG(DC_DISP_SD_FLICKER_CONTROL); | |
913 | DUMP_REG(DC_DISP_DC_PIXEL_COUNT); | |
914 | DUMP_REG(DC_DISP_SD_HISTOGRAM(0)); | |
915 | DUMP_REG(DC_DISP_SD_HISTOGRAM(1)); | |
916 | DUMP_REG(DC_DISP_SD_HISTOGRAM(2)); | |
917 | DUMP_REG(DC_DISP_SD_HISTOGRAM(3)); | |
918 | DUMP_REG(DC_DISP_SD_HISTOGRAM(4)); | |
919 | DUMP_REG(DC_DISP_SD_HISTOGRAM(5)); | |
920 | DUMP_REG(DC_DISP_SD_HISTOGRAM(6)); | |
921 | DUMP_REG(DC_DISP_SD_HISTOGRAM(7)); | |
922 | DUMP_REG(DC_DISP_SD_BL_TF(0)); | |
923 | DUMP_REG(DC_DISP_SD_BL_TF(1)); | |
924 | DUMP_REG(DC_DISP_SD_BL_TF(2)); | |
925 | DUMP_REG(DC_DISP_SD_BL_TF(3)); | |
926 | DUMP_REG(DC_DISP_SD_BL_CONTROL); | |
927 | DUMP_REG(DC_DISP_SD_HW_K_VALUES); | |
928 | DUMP_REG(DC_DISP_SD_MAN_K_VALUES); | |
929 | DUMP_REG(DC_WIN_WIN_OPTIONS); | |
930 | DUMP_REG(DC_WIN_BYTE_SWAP); | |
931 | DUMP_REG(DC_WIN_BUFFER_CONTROL); | |
932 | DUMP_REG(DC_WIN_COLOR_DEPTH); | |
933 | DUMP_REG(DC_WIN_POSITION); | |
934 | DUMP_REG(DC_WIN_SIZE); | |
935 | DUMP_REG(DC_WIN_PRESCALED_SIZE); | |
936 | DUMP_REG(DC_WIN_H_INITIAL_DDA); | |
937 | DUMP_REG(DC_WIN_V_INITIAL_DDA); | |
938 | DUMP_REG(DC_WIN_DDA_INC); | |
939 | DUMP_REG(DC_WIN_LINE_STRIDE); | |
940 | DUMP_REG(DC_WIN_BUF_STRIDE); | |
941 | DUMP_REG(DC_WIN_UV_BUF_STRIDE); | |
942 | DUMP_REG(DC_WIN_BUFFER_ADDR_MODE); | |
943 | DUMP_REG(DC_WIN_DV_CONTROL); | |
944 | DUMP_REG(DC_WIN_BLEND_NOKEY); | |
945 | DUMP_REG(DC_WIN_BLEND_1WIN); | |
946 | DUMP_REG(DC_WIN_BLEND_2WIN_X); | |
947 | DUMP_REG(DC_WIN_BLEND_2WIN_Y); | |
f34bc787 | 948 | DUMP_REG(DC_WIN_BLEND_3WIN_XY); |
d8f4a9ed TR |
949 | DUMP_REG(DC_WIN_HP_FETCH_CONTROL); |
950 | DUMP_REG(DC_WINBUF_START_ADDR); | |
951 | DUMP_REG(DC_WINBUF_START_ADDR_NS); | |
952 | DUMP_REG(DC_WINBUF_START_ADDR_U); | |
953 | DUMP_REG(DC_WINBUF_START_ADDR_U_NS); | |
954 | DUMP_REG(DC_WINBUF_START_ADDR_V); | |
955 | DUMP_REG(DC_WINBUF_START_ADDR_V_NS); | |
956 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET); | |
957 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET_NS); | |
958 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET); | |
959 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET_NS); | |
960 | DUMP_REG(DC_WINBUF_UFLOW_STATUS); | |
961 | DUMP_REG(DC_WINBUF_AD_UFLOW_STATUS); | |
962 | DUMP_REG(DC_WINBUF_BD_UFLOW_STATUS); | |
963 | DUMP_REG(DC_WINBUF_CD_UFLOW_STATUS); | |
964 | ||
965 | #undef DUMP_REG | |
966 | ||
967 | return 0; | |
968 | } | |
969 | ||
970 | static struct drm_info_list debugfs_files[] = { | |
971 | { "regs", tegra_dc_show_regs, 0, NULL }, | |
972 | }; | |
973 | ||
974 | static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor) | |
975 | { | |
976 | unsigned int i; | |
977 | char *name; | |
978 | int err; | |
979 | ||
980 | name = kasprintf(GFP_KERNEL, "dc.%d", dc->pipe); | |
981 | dc->debugfs = debugfs_create_dir(name, minor->debugfs_root); | |
982 | kfree(name); | |
983 | ||
984 | if (!dc->debugfs) | |
985 | return -ENOMEM; | |
986 | ||
987 | dc->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), | |
988 | GFP_KERNEL); | |
989 | if (!dc->debugfs_files) { | |
990 | err = -ENOMEM; | |
991 | goto remove; | |
992 | } | |
993 | ||
994 | for (i = 0; i < ARRAY_SIZE(debugfs_files); i++) | |
995 | dc->debugfs_files[i].data = dc; | |
996 | ||
997 | err = drm_debugfs_create_files(dc->debugfs_files, | |
998 | ARRAY_SIZE(debugfs_files), | |
999 | dc->debugfs, minor); | |
1000 | if (err < 0) | |
1001 | goto free; | |
1002 | ||
1003 | dc->minor = minor; | |
1004 | ||
1005 | return 0; | |
1006 | ||
1007 | free: | |
1008 | kfree(dc->debugfs_files); | |
1009 | dc->debugfs_files = NULL; | |
1010 | remove: | |
1011 | debugfs_remove(dc->debugfs); | |
1012 | dc->debugfs = NULL; | |
1013 | ||
1014 | return err; | |
1015 | } | |
1016 | ||
1017 | static int tegra_dc_debugfs_exit(struct tegra_dc *dc) | |
1018 | { | |
1019 | drm_debugfs_remove_files(dc->debugfs_files, ARRAY_SIZE(debugfs_files), | |
1020 | dc->minor); | |
1021 | dc->minor = NULL; | |
1022 | ||
1023 | kfree(dc->debugfs_files); | |
1024 | dc->debugfs_files = NULL; | |
1025 | ||
1026 | debugfs_remove(dc->debugfs); | |
1027 | dc->debugfs = NULL; | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | static int tegra_dc_drm_init(struct host1x_client *client, | |
1033 | struct drm_device *drm) | |
1034 | { | |
1035 | struct tegra_dc *dc = host1x_client_to_dc(client); | |
1036 | int err; | |
1037 | ||
1038 | dc->pipe = drm->mode_config.num_crtc; | |
1039 | ||
1040 | drm_crtc_init(drm, &dc->base, &tegra_crtc_funcs); | |
1041 | drm_mode_crtc_set_gamma_size(&dc->base, 256); | |
1042 | drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs); | |
1043 | ||
1044 | err = tegra_dc_rgb_init(drm, dc); | |
1045 | if (err < 0 && err != -ENODEV) { | |
1046 | dev_err(dc->dev, "failed to initialize RGB output: %d\n", err); | |
1047 | return err; | |
1048 | } | |
1049 | ||
f34bc787 TR |
1050 | err = tegra_dc_add_planes(drm, dc); |
1051 | if (err < 0) | |
1052 | return err; | |
1053 | ||
d8f4a9ed TR |
1054 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { |
1055 | err = tegra_dc_debugfs_init(dc, drm->primary); | |
1056 | if (err < 0) | |
1057 | dev_err(dc->dev, "debugfs setup failed: %d\n", err); | |
1058 | } | |
1059 | ||
6e5ff998 | 1060 | err = devm_request_irq(dc->dev, dc->irq, tegra_dc_irq, 0, |
d8f4a9ed TR |
1061 | dev_name(dc->dev), dc); |
1062 | if (err < 0) { | |
1063 | dev_err(dc->dev, "failed to request IRQ#%u: %d\n", dc->irq, | |
1064 | err); | |
1065 | return err; | |
1066 | } | |
1067 | ||
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static int tegra_dc_drm_exit(struct host1x_client *client) | |
1072 | { | |
1073 | struct tegra_dc *dc = host1x_client_to_dc(client); | |
1074 | int err; | |
1075 | ||
1076 | devm_free_irq(dc->dev, dc->irq, dc); | |
1077 | ||
1078 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { | |
1079 | err = tegra_dc_debugfs_exit(dc); | |
1080 | if (err < 0) | |
1081 | dev_err(dc->dev, "debugfs cleanup failed: %d\n", err); | |
1082 | } | |
1083 | ||
1084 | err = tegra_dc_rgb_exit(dc); | |
1085 | if (err) { | |
1086 | dev_err(dc->dev, "failed to shutdown RGB output: %d\n", err); | |
1087 | return err; | |
1088 | } | |
1089 | ||
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | static const struct host1x_client_ops dc_client_ops = { | |
1094 | .drm_init = tegra_dc_drm_init, | |
1095 | .drm_exit = tegra_dc_drm_exit, | |
1096 | }; | |
1097 | ||
1098 | static int tegra_dc_probe(struct platform_device *pdev) | |
1099 | { | |
1100 | struct host1x *host1x = dev_get_drvdata(pdev->dev.parent); | |
1101 | struct resource *regs; | |
1102 | struct tegra_dc *dc; | |
1103 | int err; | |
1104 | ||
1105 | dc = devm_kzalloc(&pdev->dev, sizeof(*dc), GFP_KERNEL); | |
1106 | if (!dc) | |
1107 | return -ENOMEM; | |
1108 | ||
6e5ff998 | 1109 | spin_lock_init(&dc->lock); |
d8f4a9ed TR |
1110 | INIT_LIST_HEAD(&dc->list); |
1111 | dc->dev = &pdev->dev; | |
1112 | ||
1113 | dc->clk = devm_clk_get(&pdev->dev, NULL); | |
1114 | if (IS_ERR(dc->clk)) { | |
1115 | dev_err(&pdev->dev, "failed to get clock\n"); | |
1116 | return PTR_ERR(dc->clk); | |
1117 | } | |
1118 | ||
1119 | err = clk_prepare_enable(dc->clk); | |
1120 | if (err < 0) | |
1121 | return err; | |
1122 | ||
1123 | regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1124 | if (!regs) { | |
1125 | dev_err(&pdev->dev, "failed to get registers\n"); | |
1126 | return -ENXIO; | |
1127 | } | |
1128 | ||
1129 | dc->regs = devm_request_and_ioremap(&pdev->dev, regs); | |
1130 | if (!dc->regs) { | |
1131 | dev_err(&pdev->dev, "failed to remap registers\n"); | |
1132 | return -ENXIO; | |
1133 | } | |
1134 | ||
1135 | dc->irq = platform_get_irq(pdev, 0); | |
1136 | if (dc->irq < 0) { | |
1137 | dev_err(&pdev->dev, "failed to get IRQ\n"); | |
1138 | return -ENXIO; | |
1139 | } | |
1140 | ||
1141 | INIT_LIST_HEAD(&dc->client.list); | |
1142 | dc->client.ops = &dc_client_ops; | |
1143 | dc->client.dev = &pdev->dev; | |
1144 | ||
1145 | err = tegra_dc_rgb_probe(dc); | |
1146 | if (err < 0 && err != -ENODEV) { | |
1147 | dev_err(&pdev->dev, "failed to probe RGB output: %d\n", err); | |
1148 | return err; | |
1149 | } | |
1150 | ||
1151 | err = host1x_register_client(host1x, &dc->client); | |
1152 | if (err < 0) { | |
1153 | dev_err(&pdev->dev, "failed to register host1x client: %d\n", | |
1154 | err); | |
1155 | return err; | |
1156 | } | |
1157 | ||
1158 | platform_set_drvdata(pdev, dc); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int tegra_dc_remove(struct platform_device *pdev) | |
1164 | { | |
1165 | struct host1x *host1x = dev_get_drvdata(pdev->dev.parent); | |
1166 | struct tegra_dc *dc = platform_get_drvdata(pdev); | |
1167 | int err; | |
1168 | ||
1169 | err = host1x_unregister_client(host1x, &dc->client); | |
1170 | if (err < 0) { | |
1171 | dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", | |
1172 | err); | |
1173 | return err; | |
1174 | } | |
1175 | ||
1176 | clk_disable_unprepare(dc->clk); | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static struct of_device_id tegra_dc_of_match[] = { | |
219e8153 | 1182 | { .compatible = "nvidia,tegra30-dc", }, |
d8f4a9ed TR |
1183 | { .compatible = "nvidia,tegra20-dc", }, |
1184 | { }, | |
1185 | }; | |
1186 | ||
1187 | struct platform_driver tegra_dc_driver = { | |
1188 | .driver = { | |
1189 | .name = "tegra-dc", | |
1190 | .owner = THIS_MODULE, | |
1191 | .of_match_table = tegra_dc_of_match, | |
1192 | }, | |
1193 | .probe = tegra_dc_probe, | |
1194 | .remove = tegra_dc_remove, | |
1195 | }; |