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d8408326 SWK |
1 | /* |
2 | * Copyright (C) 2011 Samsung Electronics Co.Ltd | |
3 | * Authors: | |
4 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
7 | * | |
8 | * Based on drivers/media/video/s5p-tv/mixer_reg.c | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
15 | */ | |
16 | ||
760285e7 | 17 | #include <drm/drmP.h> |
d8408326 SWK |
18 | |
19 | #include "regs-mixer.h" | |
20 | #include "regs-vp.h" | |
21 | ||
22 | #include <linux/kernel.h> | |
23 | #include <linux/spinlock.h> | |
24 | #include <linux/wait.h> | |
25 | #include <linux/i2c.h> | |
d8408326 SWK |
26 | #include <linux/platform_device.h> |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/irq.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/pm_runtime.h> | |
31 | #include <linux/clk.h> | |
32 | #include <linux/regulator/consumer.h> | |
3f1c781d | 33 | #include <linux/of.h> |
d8408326 SWK |
34 | |
35 | #include <drm/exynos_drm.h> | |
36 | ||
37 | #include "exynos_drm_drv.h" | |
663d8766 | 38 | #include "exynos_drm_crtc.h" |
1055b39f | 39 | #include "exynos_drm_iommu.h" |
f041b257 | 40 | #include "exynos_mixer.h" |
22b21ae6 | 41 | |
f041b257 SP |
42 | #define get_mixer_manager(dev) platform_get_drvdata(to_platform_device(dev)) |
43 | ||
44 | #define MIXER_WIN_NR 3 | |
45 | #define MIXER_DEFAULT_WIN 0 | |
d8408326 | 46 | |
22b21ae6 JS |
47 | struct hdmi_win_data { |
48 | dma_addr_t dma_addr; | |
22b21ae6 | 49 | dma_addr_t chroma_dma_addr; |
22b21ae6 JS |
50 | uint32_t pixel_format; |
51 | unsigned int bpp; | |
52 | unsigned int crtc_x; | |
53 | unsigned int crtc_y; | |
54 | unsigned int crtc_width; | |
55 | unsigned int crtc_height; | |
56 | unsigned int fb_x; | |
57 | unsigned int fb_y; | |
58 | unsigned int fb_width; | |
59 | unsigned int fb_height; | |
8dcb96b6 SWK |
60 | unsigned int src_width; |
61 | unsigned int src_height; | |
22b21ae6 JS |
62 | unsigned int mode_width; |
63 | unsigned int mode_height; | |
64 | unsigned int scan_flags; | |
db43fd16 P |
65 | bool enabled; |
66 | bool resume; | |
22b21ae6 JS |
67 | }; |
68 | ||
69 | struct mixer_resources { | |
22b21ae6 JS |
70 | int irq; |
71 | void __iomem *mixer_regs; | |
72 | void __iomem *vp_regs; | |
73 | spinlock_t reg_slock; | |
74 | struct clk *mixer; | |
75 | struct clk *vp; | |
76 | struct clk *sclk_mixer; | |
77 | struct clk *sclk_hdmi; | |
78 | struct clk *sclk_dac; | |
79 | }; | |
80 | ||
1e123441 RS |
81 | enum mixer_version_id { |
82 | MXR_VER_0_0_0_16, | |
83 | MXR_VER_16_0_33_0, | |
def5e095 | 84 | MXR_VER_128_0_0_184, |
1e123441 RS |
85 | }; |
86 | ||
22b21ae6 | 87 | struct mixer_context { |
4551789f | 88 | struct platform_device *pdev; |
cf8fc4f1 | 89 | struct device *dev; |
1055b39f | 90 | struct drm_device *drm_dev; |
22b21ae6 JS |
91 | int pipe; |
92 | bool interlace; | |
cf8fc4f1 | 93 | bool powered; |
1b8e5747 | 94 | bool vp_enabled; |
cf8fc4f1 | 95 | u32 int_en; |
22b21ae6 | 96 | |
cf8fc4f1 | 97 | struct mutex mixer_mutex; |
22b21ae6 | 98 | struct mixer_resources mixer_res; |
a634dd54 | 99 | struct hdmi_win_data win_data[MIXER_WIN_NR]; |
1e123441 | 100 | enum mixer_version_id mxr_ver; |
6e95d5e6 P |
101 | wait_queue_head_t wait_vsync_queue; |
102 | atomic_t wait_vsync_event; | |
1e123441 RS |
103 | }; |
104 | ||
105 | struct mixer_drv_data { | |
106 | enum mixer_version_id version; | |
1b8e5747 | 107 | bool is_vp_enabled; |
22b21ae6 JS |
108 | }; |
109 | ||
d8408326 SWK |
110 | static const u8 filter_y_horiz_tap8[] = { |
111 | 0, -1, -1, -1, -1, -1, -1, -1, | |
112 | -1, -1, -1, -1, -1, 0, 0, 0, | |
113 | 0, 2, 4, 5, 6, 6, 6, 6, | |
114 | 6, 5, 5, 4, 3, 2, 1, 1, | |
115 | 0, -6, -12, -16, -18, -20, -21, -20, | |
116 | -20, -18, -16, -13, -10, -8, -5, -2, | |
117 | 127, 126, 125, 121, 114, 107, 99, 89, | |
118 | 79, 68, 57, 46, 35, 25, 16, 8, | |
119 | }; | |
120 | ||
121 | static const u8 filter_y_vert_tap4[] = { | |
122 | 0, -3, -6, -8, -8, -8, -8, -7, | |
123 | -6, -5, -4, -3, -2, -1, -1, 0, | |
124 | 127, 126, 124, 118, 111, 102, 92, 81, | |
125 | 70, 59, 48, 37, 27, 19, 11, 5, | |
126 | 0, 5, 11, 19, 27, 37, 48, 59, | |
127 | 70, 81, 92, 102, 111, 118, 124, 126, | |
128 | 0, 0, -1, -1, -2, -3, -4, -5, | |
129 | -6, -7, -8, -8, -8, -8, -6, -3, | |
130 | }; | |
131 | ||
132 | static const u8 filter_cr_horiz_tap4[] = { | |
133 | 0, -3, -6, -8, -8, -8, -8, -7, | |
134 | -6, -5, -4, -3, -2, -1, -1, 0, | |
135 | 127, 126, 124, 118, 111, 102, 92, 81, | |
136 | 70, 59, 48, 37, 27, 19, 11, 5, | |
137 | }; | |
138 | ||
139 | static inline u32 vp_reg_read(struct mixer_resources *res, u32 reg_id) | |
140 | { | |
141 | return readl(res->vp_regs + reg_id); | |
142 | } | |
143 | ||
144 | static inline void vp_reg_write(struct mixer_resources *res, u32 reg_id, | |
145 | u32 val) | |
146 | { | |
147 | writel(val, res->vp_regs + reg_id); | |
148 | } | |
149 | ||
150 | static inline void vp_reg_writemask(struct mixer_resources *res, u32 reg_id, | |
151 | u32 val, u32 mask) | |
152 | { | |
153 | u32 old = vp_reg_read(res, reg_id); | |
154 | ||
155 | val = (val & mask) | (old & ~mask); | |
156 | writel(val, res->vp_regs + reg_id); | |
157 | } | |
158 | ||
159 | static inline u32 mixer_reg_read(struct mixer_resources *res, u32 reg_id) | |
160 | { | |
161 | return readl(res->mixer_regs + reg_id); | |
162 | } | |
163 | ||
164 | static inline void mixer_reg_write(struct mixer_resources *res, u32 reg_id, | |
165 | u32 val) | |
166 | { | |
167 | writel(val, res->mixer_regs + reg_id); | |
168 | } | |
169 | ||
170 | static inline void mixer_reg_writemask(struct mixer_resources *res, | |
171 | u32 reg_id, u32 val, u32 mask) | |
172 | { | |
173 | u32 old = mixer_reg_read(res, reg_id); | |
174 | ||
175 | val = (val & mask) | (old & ~mask); | |
176 | writel(val, res->mixer_regs + reg_id); | |
177 | } | |
178 | ||
179 | static void mixer_regs_dump(struct mixer_context *ctx) | |
180 | { | |
181 | #define DUMPREG(reg_id) \ | |
182 | do { \ | |
183 | DRM_DEBUG_KMS(#reg_id " = %08x\n", \ | |
184 | (u32)readl(ctx->mixer_res.mixer_regs + reg_id)); \ | |
185 | } while (0) | |
186 | ||
187 | DUMPREG(MXR_STATUS); | |
188 | DUMPREG(MXR_CFG); | |
189 | DUMPREG(MXR_INT_EN); | |
190 | DUMPREG(MXR_INT_STATUS); | |
191 | ||
192 | DUMPREG(MXR_LAYER_CFG); | |
193 | DUMPREG(MXR_VIDEO_CFG); | |
194 | ||
195 | DUMPREG(MXR_GRAPHIC0_CFG); | |
196 | DUMPREG(MXR_GRAPHIC0_BASE); | |
197 | DUMPREG(MXR_GRAPHIC0_SPAN); | |
198 | DUMPREG(MXR_GRAPHIC0_WH); | |
199 | DUMPREG(MXR_GRAPHIC0_SXY); | |
200 | DUMPREG(MXR_GRAPHIC0_DXY); | |
201 | ||
202 | DUMPREG(MXR_GRAPHIC1_CFG); | |
203 | DUMPREG(MXR_GRAPHIC1_BASE); | |
204 | DUMPREG(MXR_GRAPHIC1_SPAN); | |
205 | DUMPREG(MXR_GRAPHIC1_WH); | |
206 | DUMPREG(MXR_GRAPHIC1_SXY); | |
207 | DUMPREG(MXR_GRAPHIC1_DXY); | |
208 | #undef DUMPREG | |
209 | } | |
210 | ||
211 | static void vp_regs_dump(struct mixer_context *ctx) | |
212 | { | |
213 | #define DUMPREG(reg_id) \ | |
214 | do { \ | |
215 | DRM_DEBUG_KMS(#reg_id " = %08x\n", \ | |
216 | (u32) readl(ctx->mixer_res.vp_regs + reg_id)); \ | |
217 | } while (0) | |
218 | ||
219 | DUMPREG(VP_ENABLE); | |
220 | DUMPREG(VP_SRESET); | |
221 | DUMPREG(VP_SHADOW_UPDATE); | |
222 | DUMPREG(VP_FIELD_ID); | |
223 | DUMPREG(VP_MODE); | |
224 | DUMPREG(VP_IMG_SIZE_Y); | |
225 | DUMPREG(VP_IMG_SIZE_C); | |
226 | DUMPREG(VP_PER_RATE_CTRL); | |
227 | DUMPREG(VP_TOP_Y_PTR); | |
228 | DUMPREG(VP_BOT_Y_PTR); | |
229 | DUMPREG(VP_TOP_C_PTR); | |
230 | DUMPREG(VP_BOT_C_PTR); | |
231 | DUMPREG(VP_ENDIAN_MODE); | |
232 | DUMPREG(VP_SRC_H_POSITION); | |
233 | DUMPREG(VP_SRC_V_POSITION); | |
234 | DUMPREG(VP_SRC_WIDTH); | |
235 | DUMPREG(VP_SRC_HEIGHT); | |
236 | DUMPREG(VP_DST_H_POSITION); | |
237 | DUMPREG(VP_DST_V_POSITION); | |
238 | DUMPREG(VP_DST_WIDTH); | |
239 | DUMPREG(VP_DST_HEIGHT); | |
240 | DUMPREG(VP_H_RATIO); | |
241 | DUMPREG(VP_V_RATIO); | |
242 | ||
243 | #undef DUMPREG | |
244 | } | |
245 | ||
246 | static inline void vp_filter_set(struct mixer_resources *res, | |
247 | int reg_id, const u8 *data, unsigned int size) | |
248 | { | |
249 | /* assure 4-byte align */ | |
250 | BUG_ON(size & 3); | |
251 | for (; size; size -= 4, reg_id += 4, data += 4) { | |
252 | u32 val = (data[0] << 24) | (data[1] << 16) | | |
253 | (data[2] << 8) | data[3]; | |
254 | vp_reg_write(res, reg_id, val); | |
255 | } | |
256 | } | |
257 | ||
258 | static void vp_default_filter(struct mixer_resources *res) | |
259 | { | |
260 | vp_filter_set(res, VP_POLY8_Y0_LL, | |
e25e1b66 | 261 | filter_y_horiz_tap8, sizeof(filter_y_horiz_tap8)); |
d8408326 | 262 | vp_filter_set(res, VP_POLY4_Y0_LL, |
e25e1b66 | 263 | filter_y_vert_tap4, sizeof(filter_y_vert_tap4)); |
d8408326 | 264 | vp_filter_set(res, VP_POLY4_C0_LL, |
e25e1b66 | 265 | filter_cr_horiz_tap4, sizeof(filter_cr_horiz_tap4)); |
d8408326 SWK |
266 | } |
267 | ||
268 | static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable) | |
269 | { | |
270 | struct mixer_resources *res = &ctx->mixer_res; | |
271 | ||
272 | /* block update on vsync */ | |
273 | mixer_reg_writemask(res, MXR_STATUS, enable ? | |
274 | MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE); | |
275 | ||
1b8e5747 RS |
276 | if (ctx->vp_enabled) |
277 | vp_reg_write(res, VP_SHADOW_UPDATE, enable ? | |
d8408326 SWK |
278 | VP_SHADOW_UPDATE_ENABLE : 0); |
279 | } | |
280 | ||
281 | static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height) | |
282 | { | |
283 | struct mixer_resources *res = &ctx->mixer_res; | |
284 | u32 val; | |
285 | ||
286 | /* choosing between interlace and progressive mode */ | |
287 | val = (ctx->interlace ? MXR_CFG_SCAN_INTERLACE : | |
288 | MXR_CFG_SCAN_PROGRASSIVE); | |
289 | ||
def5e095 RS |
290 | if (ctx->mxr_ver != MXR_VER_128_0_0_184) { |
291 | /* choosing between proper HD and SD mode */ | |
292 | if (height <= 480) | |
293 | val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD; | |
294 | else if (height <= 576) | |
295 | val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD; | |
296 | else if (height <= 720) | |
297 | val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD; | |
298 | else if (height <= 1080) | |
299 | val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD; | |
300 | else | |
301 | val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD; | |
302 | } | |
d8408326 SWK |
303 | |
304 | mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_SCAN_MASK); | |
305 | } | |
306 | ||
307 | static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height) | |
308 | { | |
309 | struct mixer_resources *res = &ctx->mixer_res; | |
310 | u32 val; | |
311 | ||
312 | if (height == 480) { | |
313 | val = MXR_CFG_RGB601_0_255; | |
314 | } else if (height == 576) { | |
315 | val = MXR_CFG_RGB601_0_255; | |
316 | } else if (height == 720) { | |
317 | val = MXR_CFG_RGB709_16_235; | |
318 | mixer_reg_write(res, MXR_CM_COEFF_Y, | |
319 | (1 << 30) | (94 << 20) | (314 << 10) | | |
320 | (32 << 0)); | |
321 | mixer_reg_write(res, MXR_CM_COEFF_CB, | |
322 | (972 << 20) | (851 << 10) | (225 << 0)); | |
323 | mixer_reg_write(res, MXR_CM_COEFF_CR, | |
324 | (225 << 20) | (820 << 10) | (1004 << 0)); | |
325 | } else if (height == 1080) { | |
326 | val = MXR_CFG_RGB709_16_235; | |
327 | mixer_reg_write(res, MXR_CM_COEFF_Y, | |
328 | (1 << 30) | (94 << 20) | (314 << 10) | | |
329 | (32 << 0)); | |
330 | mixer_reg_write(res, MXR_CM_COEFF_CB, | |
331 | (972 << 20) | (851 << 10) | (225 << 0)); | |
332 | mixer_reg_write(res, MXR_CM_COEFF_CR, | |
333 | (225 << 20) | (820 << 10) | (1004 << 0)); | |
334 | } else { | |
335 | val = MXR_CFG_RGB709_16_235; | |
336 | mixer_reg_write(res, MXR_CM_COEFF_Y, | |
337 | (1 << 30) | (94 << 20) | (314 << 10) | | |
338 | (32 << 0)); | |
339 | mixer_reg_write(res, MXR_CM_COEFF_CB, | |
340 | (972 << 20) | (851 << 10) | (225 << 0)); | |
341 | mixer_reg_write(res, MXR_CM_COEFF_CR, | |
342 | (225 << 20) | (820 << 10) | (1004 << 0)); | |
343 | } | |
344 | ||
345 | mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK); | |
346 | } | |
347 | ||
348 | static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable) | |
349 | { | |
350 | struct mixer_resources *res = &ctx->mixer_res; | |
351 | u32 val = enable ? ~0 : 0; | |
352 | ||
353 | switch (win) { | |
354 | case 0: | |
355 | mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP0_ENABLE); | |
356 | break; | |
357 | case 1: | |
358 | mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE); | |
359 | break; | |
360 | case 2: | |
1b8e5747 RS |
361 | if (ctx->vp_enabled) { |
362 | vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON); | |
363 | mixer_reg_writemask(res, MXR_CFG, val, | |
364 | MXR_CFG_VP_ENABLE); | |
365 | } | |
d8408326 SWK |
366 | break; |
367 | } | |
368 | } | |
369 | ||
370 | static void mixer_run(struct mixer_context *ctx) | |
371 | { | |
372 | struct mixer_resources *res = &ctx->mixer_res; | |
373 | ||
374 | mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN); | |
375 | ||
376 | mixer_regs_dump(ctx); | |
377 | } | |
378 | ||
379 | static void vp_video_buffer(struct mixer_context *ctx, int win) | |
380 | { | |
381 | struct mixer_resources *res = &ctx->mixer_res; | |
382 | unsigned long flags; | |
383 | struct hdmi_win_data *win_data; | |
d8408326 | 384 | unsigned int x_ratio, y_ratio; |
782953ec | 385 | unsigned int buf_num = 1; |
d8408326 SWK |
386 | dma_addr_t luma_addr[2], chroma_addr[2]; |
387 | bool tiled_mode = false; | |
388 | bool crcb_mode = false; | |
389 | u32 val; | |
390 | ||
391 | win_data = &ctx->win_data[win]; | |
392 | ||
393 | switch (win_data->pixel_format) { | |
394 | case DRM_FORMAT_NV12MT: | |
395 | tiled_mode = true; | |
363b06aa | 396 | case DRM_FORMAT_NV12: |
d8408326 SWK |
397 | crcb_mode = false; |
398 | buf_num = 2; | |
399 | break; | |
400 | /* TODO: single buffer format NV12, NV21 */ | |
401 | default: | |
402 | /* ignore pixel format at disable time */ | |
403 | if (!win_data->dma_addr) | |
404 | break; | |
405 | ||
406 | DRM_ERROR("pixel format for vp is wrong [%d].\n", | |
407 | win_data->pixel_format); | |
408 | return; | |
409 | } | |
410 | ||
d8408326 | 411 | /* scaling feature: (src << 16) / dst */ |
8dcb96b6 SWK |
412 | x_ratio = (win_data->src_width << 16) / win_data->crtc_width; |
413 | y_ratio = (win_data->src_height << 16) / win_data->crtc_height; | |
d8408326 SWK |
414 | |
415 | if (buf_num == 2) { | |
416 | luma_addr[0] = win_data->dma_addr; | |
417 | chroma_addr[0] = win_data->chroma_dma_addr; | |
418 | } else { | |
419 | luma_addr[0] = win_data->dma_addr; | |
420 | chroma_addr[0] = win_data->dma_addr | |
8dcb96b6 | 421 | + (win_data->fb_width * win_data->fb_height); |
d8408326 SWK |
422 | } |
423 | ||
424 | if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) { | |
425 | ctx->interlace = true; | |
426 | if (tiled_mode) { | |
427 | luma_addr[1] = luma_addr[0] + 0x40; | |
428 | chroma_addr[1] = chroma_addr[0] + 0x40; | |
429 | } else { | |
8dcb96b6 SWK |
430 | luma_addr[1] = luma_addr[0] + win_data->fb_width; |
431 | chroma_addr[1] = chroma_addr[0] + win_data->fb_width; | |
d8408326 SWK |
432 | } |
433 | } else { | |
434 | ctx->interlace = false; | |
435 | luma_addr[1] = 0; | |
436 | chroma_addr[1] = 0; | |
437 | } | |
438 | ||
439 | spin_lock_irqsave(&res->reg_slock, flags); | |
440 | mixer_vsync_set_update(ctx, false); | |
441 | ||
442 | /* interlace or progressive scan mode */ | |
443 | val = (ctx->interlace ? ~0 : 0); | |
444 | vp_reg_writemask(res, VP_MODE, val, VP_MODE_LINE_SKIP); | |
445 | ||
446 | /* setup format */ | |
447 | val = (crcb_mode ? VP_MODE_NV21 : VP_MODE_NV12); | |
448 | val |= (tiled_mode ? VP_MODE_MEM_TILED : VP_MODE_MEM_LINEAR); | |
449 | vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK); | |
450 | ||
451 | /* setting size of input image */ | |
8dcb96b6 SWK |
452 | vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) | |
453 | VP_IMG_VSIZE(win_data->fb_height)); | |
d8408326 | 454 | /* chroma height has to reduced by 2 to avoid chroma distorions */ |
8dcb96b6 SWK |
455 | vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) | |
456 | VP_IMG_VSIZE(win_data->fb_height / 2)); | |
d8408326 | 457 | |
8dcb96b6 SWK |
458 | vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width); |
459 | vp_reg_write(res, VP_SRC_HEIGHT, win_data->src_height); | |
d8408326 | 460 | vp_reg_write(res, VP_SRC_H_POSITION, |
8dcb96b6 SWK |
461 | VP_SRC_H_POSITION_VAL(win_data->fb_x)); |
462 | vp_reg_write(res, VP_SRC_V_POSITION, win_data->fb_y); | |
d8408326 | 463 | |
8dcb96b6 SWK |
464 | vp_reg_write(res, VP_DST_WIDTH, win_data->crtc_width); |
465 | vp_reg_write(res, VP_DST_H_POSITION, win_data->crtc_x); | |
d8408326 | 466 | if (ctx->interlace) { |
8dcb96b6 SWK |
467 | vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height / 2); |
468 | vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y / 2); | |
d8408326 | 469 | } else { |
8dcb96b6 SWK |
470 | vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height); |
471 | vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y); | |
d8408326 SWK |
472 | } |
473 | ||
474 | vp_reg_write(res, VP_H_RATIO, x_ratio); | |
475 | vp_reg_write(res, VP_V_RATIO, y_ratio); | |
476 | ||
477 | vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE); | |
478 | ||
479 | /* set buffer address to vp */ | |
480 | vp_reg_write(res, VP_TOP_Y_PTR, luma_addr[0]); | |
481 | vp_reg_write(res, VP_BOT_Y_PTR, luma_addr[1]); | |
482 | vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]); | |
483 | vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]); | |
484 | ||
8dcb96b6 SWK |
485 | mixer_cfg_scan(ctx, win_data->mode_height); |
486 | mixer_cfg_rgb_fmt(ctx, win_data->mode_height); | |
d8408326 SWK |
487 | mixer_cfg_layer(ctx, win, true); |
488 | mixer_run(ctx); | |
489 | ||
490 | mixer_vsync_set_update(ctx, true); | |
491 | spin_unlock_irqrestore(&res->reg_slock, flags); | |
492 | ||
493 | vp_regs_dump(ctx); | |
494 | } | |
495 | ||
aaf8b49e RS |
496 | static void mixer_layer_update(struct mixer_context *ctx) |
497 | { | |
498 | struct mixer_resources *res = &ctx->mixer_res; | |
499 | u32 val; | |
500 | ||
501 | val = mixer_reg_read(res, MXR_CFG); | |
502 | ||
503 | /* allow one update per vsync only */ | |
504 | if (!(val & MXR_CFG_LAYER_UPDATE_COUNT_MASK)) | |
505 | mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE); | |
506 | } | |
507 | ||
d8408326 SWK |
508 | static void mixer_graph_buffer(struct mixer_context *ctx, int win) |
509 | { | |
510 | struct mixer_resources *res = &ctx->mixer_res; | |
511 | unsigned long flags; | |
512 | struct hdmi_win_data *win_data; | |
d8408326 SWK |
513 | unsigned int x_ratio, y_ratio; |
514 | unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset; | |
d8408326 SWK |
515 | dma_addr_t dma_addr; |
516 | unsigned int fmt; | |
517 | u32 val; | |
518 | ||
519 | win_data = &ctx->win_data[win]; | |
520 | ||
521 | #define RGB565 4 | |
522 | #define ARGB1555 5 | |
523 | #define ARGB4444 6 | |
524 | #define ARGB8888 7 | |
525 | ||
526 | switch (win_data->bpp) { | |
527 | case 16: | |
528 | fmt = ARGB4444; | |
529 | break; | |
530 | case 32: | |
531 | fmt = ARGB8888; | |
532 | break; | |
533 | default: | |
534 | fmt = ARGB8888; | |
535 | } | |
536 | ||
d8408326 SWK |
537 | /* 2x scaling feature */ |
538 | x_ratio = 0; | |
539 | y_ratio = 0; | |
540 | ||
d8408326 SWK |
541 | dst_x_offset = win_data->crtc_x; |
542 | dst_y_offset = win_data->crtc_y; | |
543 | ||
544 | /* converting dma address base and source offset */ | |
8dcb96b6 SWK |
545 | dma_addr = win_data->dma_addr |
546 | + (win_data->fb_x * win_data->bpp >> 3) | |
547 | + (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3); | |
d8408326 SWK |
548 | src_x_offset = 0; |
549 | src_y_offset = 0; | |
550 | ||
551 | if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) | |
552 | ctx->interlace = true; | |
553 | else | |
554 | ctx->interlace = false; | |
555 | ||
556 | spin_lock_irqsave(&res->reg_slock, flags); | |
557 | mixer_vsync_set_update(ctx, false); | |
558 | ||
559 | /* setup format */ | |
560 | mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win), | |
561 | MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK); | |
562 | ||
563 | /* setup geometry */ | |
8dcb96b6 | 564 | mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width); |
d8408326 | 565 | |
def5e095 RS |
566 | /* setup display size */ |
567 | if (ctx->mxr_ver == MXR_VER_128_0_0_184 && | |
568 | win == MIXER_DEFAULT_WIN) { | |
569 | val = MXR_MXR_RES_HEIGHT(win_data->fb_height); | |
570 | val |= MXR_MXR_RES_WIDTH(win_data->fb_width); | |
571 | mixer_reg_write(res, MXR_RESOLUTION, val); | |
572 | } | |
573 | ||
8dcb96b6 SWK |
574 | val = MXR_GRP_WH_WIDTH(win_data->crtc_width); |
575 | val |= MXR_GRP_WH_HEIGHT(win_data->crtc_height); | |
d8408326 SWK |
576 | val |= MXR_GRP_WH_H_SCALE(x_ratio); |
577 | val |= MXR_GRP_WH_V_SCALE(y_ratio); | |
578 | mixer_reg_write(res, MXR_GRAPHIC_WH(win), val); | |
579 | ||
580 | /* setup offsets in source image */ | |
581 | val = MXR_GRP_SXY_SX(src_x_offset); | |
582 | val |= MXR_GRP_SXY_SY(src_y_offset); | |
583 | mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val); | |
584 | ||
585 | /* setup offsets in display image */ | |
586 | val = MXR_GRP_DXY_DX(dst_x_offset); | |
587 | val |= MXR_GRP_DXY_DY(dst_y_offset); | |
588 | mixer_reg_write(res, MXR_GRAPHIC_DXY(win), val); | |
589 | ||
590 | /* set buffer address to mixer */ | |
591 | mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr); | |
592 | ||
8dcb96b6 SWK |
593 | mixer_cfg_scan(ctx, win_data->mode_height); |
594 | mixer_cfg_rgb_fmt(ctx, win_data->mode_height); | |
d8408326 | 595 | mixer_cfg_layer(ctx, win, true); |
aaf8b49e RS |
596 | |
597 | /* layer update mandatory for mixer 16.0.33.0 */ | |
def5e095 RS |
598 | if (ctx->mxr_ver == MXR_VER_16_0_33_0 || |
599 | ctx->mxr_ver == MXR_VER_128_0_0_184) | |
aaf8b49e RS |
600 | mixer_layer_update(ctx); |
601 | ||
d8408326 SWK |
602 | mixer_run(ctx); |
603 | ||
604 | mixer_vsync_set_update(ctx, true); | |
605 | spin_unlock_irqrestore(&res->reg_slock, flags); | |
606 | } | |
607 | ||
608 | static void vp_win_reset(struct mixer_context *ctx) | |
609 | { | |
610 | struct mixer_resources *res = &ctx->mixer_res; | |
611 | int tries = 100; | |
612 | ||
613 | vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING); | |
614 | for (tries = 100; tries; --tries) { | |
615 | /* waiting until VP_SRESET_PROCESSING is 0 */ | |
616 | if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING) | |
617 | break; | |
09760ea3 | 618 | usleep_range(10000, 12000); |
d8408326 SWK |
619 | } |
620 | WARN(tries == 0, "failed to reset Video Processor\n"); | |
621 | } | |
622 | ||
cf8fc4f1 JS |
623 | static void mixer_win_reset(struct mixer_context *ctx) |
624 | { | |
625 | struct mixer_resources *res = &ctx->mixer_res; | |
626 | unsigned long flags; | |
627 | u32 val; /* value stored to register */ | |
628 | ||
629 | spin_lock_irqsave(&res->reg_slock, flags); | |
630 | mixer_vsync_set_update(ctx, false); | |
631 | ||
632 | mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK); | |
633 | ||
634 | /* set output in RGB888 mode */ | |
635 | mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK); | |
636 | ||
637 | /* 16 beat burst in DMA */ | |
638 | mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST, | |
639 | MXR_STATUS_BURST_MASK); | |
640 | ||
641 | /* setting default layer priority: layer1 > layer0 > video | |
642 | * because typical usage scenario would be | |
643 | * layer1 - OSD | |
644 | * layer0 - framebuffer | |
645 | * video - video overlay | |
646 | */ | |
647 | val = MXR_LAYER_CFG_GRP1_VAL(3); | |
648 | val |= MXR_LAYER_CFG_GRP0_VAL(2); | |
1b8e5747 RS |
649 | if (ctx->vp_enabled) |
650 | val |= MXR_LAYER_CFG_VP_VAL(1); | |
cf8fc4f1 JS |
651 | mixer_reg_write(res, MXR_LAYER_CFG, val); |
652 | ||
653 | /* setting background color */ | |
654 | mixer_reg_write(res, MXR_BG_COLOR0, 0x008080); | |
655 | mixer_reg_write(res, MXR_BG_COLOR1, 0x008080); | |
656 | mixer_reg_write(res, MXR_BG_COLOR2, 0x008080); | |
657 | ||
658 | /* setting graphical layers */ | |
cf8fc4f1 JS |
659 | val = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */ |
660 | val |= MXR_GRP_CFG_WIN_BLEND_EN; | |
661 | val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */ | |
662 | ||
0377f4ed | 663 | /* Don't blend layer 0 onto the mixer background */ |
cf8fc4f1 | 664 | mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val); |
0377f4ed SP |
665 | |
666 | /* Blend layer 1 into layer 0 */ | |
667 | val |= MXR_GRP_CFG_BLEND_PRE_MUL; | |
668 | val |= MXR_GRP_CFG_PIXEL_BLEND_EN; | |
cf8fc4f1 JS |
669 | mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val); |
670 | ||
5736603b SWK |
671 | /* setting video layers */ |
672 | val = MXR_GRP_CFG_ALPHA_VAL(0); | |
673 | mixer_reg_write(res, MXR_VIDEO_CFG, val); | |
674 | ||
1b8e5747 RS |
675 | if (ctx->vp_enabled) { |
676 | /* configuration of Video Processor Registers */ | |
677 | vp_win_reset(ctx); | |
678 | vp_default_filter(res); | |
679 | } | |
cf8fc4f1 JS |
680 | |
681 | /* disable all layers */ | |
682 | mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE); | |
683 | mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE); | |
1b8e5747 RS |
684 | if (ctx->vp_enabled) |
685 | mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE); | |
cf8fc4f1 JS |
686 | |
687 | mixer_vsync_set_update(ctx, true); | |
688 | spin_unlock_irqrestore(&res->reg_slock, flags); | |
689 | } | |
690 | ||
4551789f SP |
691 | static irqreturn_t mixer_irq_handler(int irq, void *arg) |
692 | { | |
693 | struct mixer_context *ctx = arg; | |
694 | struct mixer_resources *res = &ctx->mixer_res; | |
695 | u32 val, base, shadow; | |
696 | ||
697 | spin_lock(&res->reg_slock); | |
698 | ||
699 | /* read interrupt status for handling and clearing flags for VSYNC */ | |
700 | val = mixer_reg_read(res, MXR_INT_STATUS); | |
701 | ||
702 | /* handling VSYNC */ | |
703 | if (val & MXR_INT_STATUS_VSYNC) { | |
704 | /* interlace scan need to check shadow register */ | |
705 | if (ctx->interlace) { | |
706 | base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0)); | |
707 | shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0)); | |
708 | if (base != shadow) | |
709 | goto out; | |
710 | ||
711 | base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1)); | |
712 | shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1)); | |
713 | if (base != shadow) | |
714 | goto out; | |
715 | } | |
716 | ||
717 | drm_handle_vblank(ctx->drm_dev, ctx->pipe); | |
718 | exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe); | |
719 | ||
720 | /* set wait vsync event to zero and wake up queue. */ | |
721 | if (atomic_read(&ctx->wait_vsync_event)) { | |
722 | atomic_set(&ctx->wait_vsync_event, 0); | |
723 | wake_up(&ctx->wait_vsync_queue); | |
724 | } | |
725 | } | |
726 | ||
727 | out: | |
728 | /* clear interrupts */ | |
729 | if (~val & MXR_INT_EN_VSYNC) { | |
730 | /* vsync interrupt use different bit for read and clear */ | |
731 | val &= ~MXR_INT_EN_VSYNC; | |
732 | val |= MXR_INT_CLEAR_VSYNC; | |
733 | } | |
734 | mixer_reg_write(res, MXR_INT_STATUS, val); | |
735 | ||
736 | spin_unlock(&res->reg_slock); | |
737 | ||
738 | return IRQ_HANDLED; | |
739 | } | |
740 | ||
741 | static int mixer_resources_init(struct mixer_context *mixer_ctx) | |
742 | { | |
743 | struct device *dev = &mixer_ctx->pdev->dev; | |
744 | struct mixer_resources *mixer_res = &mixer_ctx->mixer_res; | |
745 | struct resource *res; | |
746 | int ret; | |
747 | ||
748 | spin_lock_init(&mixer_res->reg_slock); | |
749 | ||
750 | mixer_res->mixer = devm_clk_get(dev, "mixer"); | |
751 | if (IS_ERR(mixer_res->mixer)) { | |
752 | dev_err(dev, "failed to get clock 'mixer'\n"); | |
753 | return -ENODEV; | |
754 | } | |
755 | ||
756 | mixer_res->sclk_hdmi = devm_clk_get(dev, "sclk_hdmi"); | |
757 | if (IS_ERR(mixer_res->sclk_hdmi)) { | |
758 | dev_err(dev, "failed to get clock 'sclk_hdmi'\n"); | |
759 | return -ENODEV; | |
760 | } | |
761 | res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 0); | |
762 | if (res == NULL) { | |
763 | dev_err(dev, "get memory resource failed.\n"); | |
764 | return -ENXIO; | |
765 | } | |
766 | ||
767 | mixer_res->mixer_regs = devm_ioremap(dev, res->start, | |
768 | resource_size(res)); | |
769 | if (mixer_res->mixer_regs == NULL) { | |
770 | dev_err(dev, "register mapping failed.\n"); | |
771 | return -ENXIO; | |
772 | } | |
773 | ||
774 | res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_IRQ, 0); | |
775 | if (res == NULL) { | |
776 | dev_err(dev, "get interrupt resource failed.\n"); | |
777 | return -ENXIO; | |
778 | } | |
779 | ||
780 | ret = devm_request_irq(dev, res->start, mixer_irq_handler, | |
781 | 0, "drm_mixer", mixer_ctx); | |
782 | if (ret) { | |
783 | dev_err(dev, "request interrupt failed.\n"); | |
784 | return ret; | |
785 | } | |
786 | mixer_res->irq = res->start; | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
791 | static int vp_resources_init(struct mixer_context *mixer_ctx) | |
792 | { | |
793 | struct device *dev = &mixer_ctx->pdev->dev; | |
794 | struct mixer_resources *mixer_res = &mixer_ctx->mixer_res; | |
795 | struct resource *res; | |
796 | ||
797 | mixer_res->vp = devm_clk_get(dev, "vp"); | |
798 | if (IS_ERR(mixer_res->vp)) { | |
799 | dev_err(dev, "failed to get clock 'vp'\n"); | |
800 | return -ENODEV; | |
801 | } | |
802 | mixer_res->sclk_mixer = devm_clk_get(dev, "sclk_mixer"); | |
803 | if (IS_ERR(mixer_res->sclk_mixer)) { | |
804 | dev_err(dev, "failed to get clock 'sclk_mixer'\n"); | |
805 | return -ENODEV; | |
806 | } | |
807 | mixer_res->sclk_dac = devm_clk_get(dev, "sclk_dac"); | |
808 | if (IS_ERR(mixer_res->sclk_dac)) { | |
809 | dev_err(dev, "failed to get clock 'sclk_dac'\n"); | |
810 | return -ENODEV; | |
811 | } | |
812 | ||
813 | if (mixer_res->sclk_hdmi) | |
814 | clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi); | |
815 | ||
816 | res = platform_get_resource(mixer_ctx->pdev, IORESOURCE_MEM, 1); | |
817 | if (res == NULL) { | |
818 | dev_err(dev, "get memory resource failed.\n"); | |
819 | return -ENXIO; | |
820 | } | |
821 | ||
822 | mixer_res->vp_regs = devm_ioremap(dev, res->start, | |
823 | resource_size(res)); | |
824 | if (mixer_res->vp_regs == NULL) { | |
825 | dev_err(dev, "register mapping failed.\n"); | |
826 | return -ENXIO; | |
827 | } | |
828 | ||
829 | return 0; | |
830 | } | |
831 | ||
f041b257 SP |
832 | static int mixer_initialize(struct exynos_drm_manager *mgr, |
833 | struct drm_device *drm_dev, int pipe) | |
4551789f SP |
834 | { |
835 | int ret; | |
f041b257 | 836 | struct mixer_context *mixer_ctx = mgr->ctx; |
4551789f SP |
837 | |
838 | mixer_ctx->drm_dev = drm_dev; | |
f041b257 | 839 | mixer_ctx->pipe = pipe; |
4551789f SP |
840 | |
841 | /* acquire resources: regs, irqs, clocks */ | |
842 | ret = mixer_resources_init(mixer_ctx); | |
843 | if (ret) { | |
844 | DRM_ERROR("mixer_resources_init failed ret=%d\n", ret); | |
845 | return ret; | |
846 | } | |
847 | ||
848 | if (mixer_ctx->vp_enabled) { | |
849 | /* acquire vp resources: regs, irqs, clocks */ | |
850 | ret = vp_resources_init(mixer_ctx); | |
851 | if (ret) { | |
852 | DRM_ERROR("vp_resources_init failed ret=%d\n", ret); | |
853 | return ret; | |
854 | } | |
855 | } | |
856 | ||
f041b257 SP |
857 | if (!is_drm_iommu_supported(mixer_ctx->drm_dev)) |
858 | return 0; | |
859 | ||
860 | return drm_iommu_attach_device(mixer_ctx->drm_dev, mixer_ctx->dev); | |
4551789f SP |
861 | } |
862 | ||
f041b257 | 863 | static void mixer_mgr_remove(struct exynos_drm_manager *mgr) |
1055b39f | 864 | { |
f041b257 | 865 | struct mixer_context *mixer_ctx = mgr->ctx; |
1055b39f | 866 | |
f041b257 SP |
867 | if (is_drm_iommu_supported(mixer_ctx->drm_dev)) |
868 | drm_iommu_detach_device(mixer_ctx->drm_dev, mixer_ctx->dev); | |
1055b39f ID |
869 | } |
870 | ||
f041b257 | 871 | static int mixer_enable_vblank(struct exynos_drm_manager *mgr) |
d8408326 | 872 | { |
f041b257 | 873 | struct mixer_context *mixer_ctx = mgr->ctx; |
d8408326 SWK |
874 | struct mixer_resources *res = &mixer_ctx->mixer_res; |
875 | ||
f041b257 SP |
876 | if (!mixer_ctx->powered) { |
877 | mixer_ctx->int_en |= MXR_INT_EN_VSYNC; | |
878 | return 0; | |
879 | } | |
d8408326 SWK |
880 | |
881 | /* enable vsync interrupt */ | |
882 | mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC, | |
883 | MXR_INT_EN_VSYNC); | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
f041b257 | 888 | static void mixer_disable_vblank(struct exynos_drm_manager *mgr) |
d8408326 | 889 | { |
f041b257 | 890 | struct mixer_context *mixer_ctx = mgr->ctx; |
d8408326 SWK |
891 | struct mixer_resources *res = &mixer_ctx->mixer_res; |
892 | ||
d8408326 SWK |
893 | /* disable vsync interrupt */ |
894 | mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC); | |
895 | } | |
896 | ||
f041b257 SP |
897 | static void mixer_win_mode_set(struct exynos_drm_manager *mgr, |
898 | struct exynos_drm_overlay *overlay) | |
d8408326 | 899 | { |
f041b257 | 900 | struct mixer_context *mixer_ctx = mgr->ctx; |
d8408326 SWK |
901 | struct hdmi_win_data *win_data; |
902 | int win; | |
903 | ||
d8408326 SWK |
904 | if (!overlay) { |
905 | DRM_ERROR("overlay is NULL\n"); | |
906 | return; | |
907 | } | |
908 | ||
909 | DRM_DEBUG_KMS("set [%d]x[%d] at (%d,%d) to [%d]x[%d] at (%d,%d)\n", | |
910 | overlay->fb_width, overlay->fb_height, | |
911 | overlay->fb_x, overlay->fb_y, | |
912 | overlay->crtc_width, overlay->crtc_height, | |
913 | overlay->crtc_x, overlay->crtc_y); | |
914 | ||
915 | win = overlay->zpos; | |
916 | if (win == DEFAULT_ZPOS) | |
a2ee151b | 917 | win = MIXER_DEFAULT_WIN; |
d8408326 | 918 | |
1586d80c | 919 | if (win < 0 || win >= MIXER_WIN_NR) { |
cf8fc4f1 | 920 | DRM_ERROR("mixer window[%d] is wrong\n", win); |
d8408326 SWK |
921 | return; |
922 | } | |
923 | ||
924 | win_data = &mixer_ctx->win_data[win]; | |
925 | ||
926 | win_data->dma_addr = overlay->dma_addr[0]; | |
d8408326 | 927 | win_data->chroma_dma_addr = overlay->dma_addr[1]; |
d8408326 SWK |
928 | win_data->pixel_format = overlay->pixel_format; |
929 | win_data->bpp = overlay->bpp; | |
930 | ||
931 | win_data->crtc_x = overlay->crtc_x; | |
932 | win_data->crtc_y = overlay->crtc_y; | |
933 | win_data->crtc_width = overlay->crtc_width; | |
934 | win_data->crtc_height = overlay->crtc_height; | |
935 | ||
936 | win_data->fb_x = overlay->fb_x; | |
937 | win_data->fb_y = overlay->fb_y; | |
938 | win_data->fb_width = overlay->fb_width; | |
939 | win_data->fb_height = overlay->fb_height; | |
8dcb96b6 SWK |
940 | win_data->src_width = overlay->src_width; |
941 | win_data->src_height = overlay->src_height; | |
d8408326 SWK |
942 | |
943 | win_data->mode_width = overlay->mode_width; | |
944 | win_data->mode_height = overlay->mode_height; | |
945 | ||
946 | win_data->scan_flags = overlay->scan_flag; | |
947 | } | |
948 | ||
f041b257 | 949 | static void mixer_win_commit(struct exynos_drm_manager *mgr, int zpos) |
d8408326 | 950 | { |
f041b257 SP |
951 | struct mixer_context *mixer_ctx = mgr->ctx; |
952 | int win = zpos == DEFAULT_ZPOS ? MIXER_DEFAULT_WIN : zpos; | |
d8408326 | 953 | |
cbc4c33d | 954 | DRM_DEBUG_KMS("win: %d\n", win); |
d8408326 | 955 | |
dda9012b S |
956 | mutex_lock(&mixer_ctx->mixer_mutex); |
957 | if (!mixer_ctx->powered) { | |
958 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
959 | return; | |
960 | } | |
961 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
962 | ||
1b8e5747 | 963 | if (win > 1 && mixer_ctx->vp_enabled) |
d8408326 SWK |
964 | vp_video_buffer(mixer_ctx, win); |
965 | else | |
966 | mixer_graph_buffer(mixer_ctx, win); | |
db43fd16 P |
967 | |
968 | mixer_ctx->win_data[win].enabled = true; | |
d8408326 SWK |
969 | } |
970 | ||
f041b257 | 971 | static void mixer_win_disable(struct exynos_drm_manager *mgr, int zpos) |
d8408326 | 972 | { |
f041b257 | 973 | struct mixer_context *mixer_ctx = mgr->ctx; |
d8408326 | 974 | struct mixer_resources *res = &mixer_ctx->mixer_res; |
f041b257 | 975 | int win = zpos == DEFAULT_ZPOS ? MIXER_DEFAULT_WIN : zpos; |
d8408326 | 976 | unsigned long flags; |
d8408326 | 977 | |
cbc4c33d | 978 | DRM_DEBUG_KMS("win: %d\n", win); |
d8408326 | 979 | |
db43fd16 P |
980 | mutex_lock(&mixer_ctx->mixer_mutex); |
981 | if (!mixer_ctx->powered) { | |
982 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
983 | mixer_ctx->win_data[win].resume = false; | |
984 | return; | |
985 | } | |
986 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
987 | ||
d8408326 SWK |
988 | spin_lock_irqsave(&res->reg_slock, flags); |
989 | mixer_vsync_set_update(mixer_ctx, false); | |
990 | ||
991 | mixer_cfg_layer(mixer_ctx, win, false); | |
992 | ||
993 | mixer_vsync_set_update(mixer_ctx, true); | |
994 | spin_unlock_irqrestore(&res->reg_slock, flags); | |
db43fd16 P |
995 | |
996 | mixer_ctx->win_data[win].enabled = false; | |
d8408326 SWK |
997 | } |
998 | ||
f041b257 | 999 | static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr) |
8137a2e2 | 1000 | { |
f041b257 | 1001 | struct mixer_context *mixer_ctx = mgr->ctx; |
8137a2e2 | 1002 | |
6e95d5e6 P |
1003 | mutex_lock(&mixer_ctx->mixer_mutex); |
1004 | if (!mixer_ctx->powered) { | |
1005 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
1006 | return; | |
1007 | } | |
1008 | mutex_unlock(&mixer_ctx->mixer_mutex); | |
1009 | ||
1010 | atomic_set(&mixer_ctx->wait_vsync_event, 1); | |
1011 | ||
1012 | /* | |
1013 | * wait for MIXER to signal VSYNC interrupt or return after | |
1014 | * timeout which is set to 50ms (refresh rate of 20). | |
1015 | */ | |
1016 | if (!wait_event_timeout(mixer_ctx->wait_vsync_queue, | |
1017 | !atomic_read(&mixer_ctx->wait_vsync_event), | |
bfd8303a | 1018 | HZ/20)) |
8137a2e2 P |
1019 | DRM_DEBUG_KMS("vblank wait timed out.\n"); |
1020 | } | |
1021 | ||
f041b257 | 1022 | static void mixer_window_suspend(struct exynos_drm_manager *mgr) |
db43fd16 | 1023 | { |
f041b257 | 1024 | struct mixer_context *ctx = mgr->ctx; |
db43fd16 P |
1025 | struct hdmi_win_data *win_data; |
1026 | int i; | |
1027 | ||
1028 | for (i = 0; i < MIXER_WIN_NR; i++) { | |
1029 | win_data = &ctx->win_data[i]; | |
1030 | win_data->resume = win_data->enabled; | |
f041b257 | 1031 | mixer_win_disable(mgr, i); |
db43fd16 | 1032 | } |
f041b257 | 1033 | mixer_wait_for_vblank(mgr); |
db43fd16 P |
1034 | } |
1035 | ||
f041b257 | 1036 | static void mixer_window_resume(struct exynos_drm_manager *mgr) |
db43fd16 | 1037 | { |
f041b257 | 1038 | struct mixer_context *ctx = mgr->ctx; |
db43fd16 P |
1039 | struct hdmi_win_data *win_data; |
1040 | int i; | |
1041 | ||
1042 | for (i = 0; i < MIXER_WIN_NR; i++) { | |
1043 | win_data = &ctx->win_data[i]; | |
1044 | win_data->enabled = win_data->resume; | |
1045 | win_data->resume = false; | |
87244fa6 | 1046 | if (win_data->enabled) |
f041b257 | 1047 | mixer_win_commit(mgr, i); |
db43fd16 P |
1048 | } |
1049 | } | |
1050 | ||
f041b257 | 1051 | static void mixer_poweron(struct exynos_drm_manager *mgr) |
db43fd16 | 1052 | { |
f041b257 | 1053 | struct mixer_context *ctx = mgr->ctx; |
db43fd16 P |
1054 | struct mixer_resources *res = &ctx->mixer_res; |
1055 | ||
db43fd16 P |
1056 | mutex_lock(&ctx->mixer_mutex); |
1057 | if (ctx->powered) { | |
1058 | mutex_unlock(&ctx->mixer_mutex); | |
1059 | return; | |
1060 | } | |
1061 | ctx->powered = true; | |
1062 | mutex_unlock(&ctx->mixer_mutex); | |
1063 | ||
af65c804 SP |
1064 | pm_runtime_get_sync(ctx->dev); |
1065 | ||
0bfb1f8b | 1066 | clk_prepare_enable(res->mixer); |
db43fd16 | 1067 | if (ctx->vp_enabled) { |
0bfb1f8b SP |
1068 | clk_prepare_enable(res->vp); |
1069 | clk_prepare_enable(res->sclk_mixer); | |
db43fd16 P |
1070 | } |
1071 | ||
1072 | mixer_reg_write(res, MXR_INT_EN, ctx->int_en); | |
1073 | mixer_win_reset(ctx); | |
1074 | ||
f041b257 | 1075 | mixer_window_resume(mgr); |
db43fd16 P |
1076 | } |
1077 | ||
f041b257 | 1078 | static void mixer_poweroff(struct exynos_drm_manager *mgr) |
db43fd16 | 1079 | { |
f041b257 | 1080 | struct mixer_context *ctx = mgr->ctx; |
db43fd16 P |
1081 | struct mixer_resources *res = &ctx->mixer_res; |
1082 | ||
db43fd16 P |
1083 | mutex_lock(&ctx->mixer_mutex); |
1084 | if (!ctx->powered) | |
1085 | goto out; | |
1086 | mutex_unlock(&ctx->mixer_mutex); | |
1087 | ||
f041b257 | 1088 | mixer_window_suspend(mgr); |
db43fd16 P |
1089 | |
1090 | ctx->int_en = mixer_reg_read(res, MXR_INT_EN); | |
1091 | ||
0bfb1f8b | 1092 | clk_disable_unprepare(res->mixer); |
db43fd16 | 1093 | if (ctx->vp_enabled) { |
0bfb1f8b SP |
1094 | clk_disable_unprepare(res->vp); |
1095 | clk_disable_unprepare(res->sclk_mixer); | |
db43fd16 P |
1096 | } |
1097 | ||
af65c804 SP |
1098 | pm_runtime_put_sync(ctx->dev); |
1099 | ||
db43fd16 P |
1100 | mutex_lock(&ctx->mixer_mutex); |
1101 | ctx->powered = false; | |
1102 | ||
1103 | out: | |
1104 | mutex_unlock(&ctx->mixer_mutex); | |
1105 | } | |
1106 | ||
f041b257 | 1107 | static void mixer_dpms(struct exynos_drm_manager *mgr, int mode) |
db43fd16 | 1108 | { |
db43fd16 P |
1109 | switch (mode) { |
1110 | case DRM_MODE_DPMS_ON: | |
af65c804 | 1111 | mixer_poweron(mgr); |
db43fd16 P |
1112 | break; |
1113 | case DRM_MODE_DPMS_STANDBY: | |
1114 | case DRM_MODE_DPMS_SUSPEND: | |
1115 | case DRM_MODE_DPMS_OFF: | |
af65c804 | 1116 | mixer_poweroff(mgr); |
db43fd16 P |
1117 | break; |
1118 | default: | |
1119 | DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode); | |
1120 | break; | |
1121 | } | |
1122 | } | |
1123 | ||
f041b257 SP |
1124 | /* Only valid for Mixer version 16.0.33.0 */ |
1125 | int mixer_check_mode(struct drm_display_mode *mode) | |
1126 | { | |
1127 | u32 w, h; | |
1128 | ||
1129 | w = mode->hdisplay; | |
1130 | h = mode->vdisplay; | |
1131 | ||
1132 | DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d\n", | |
1133 | mode->hdisplay, mode->vdisplay, mode->vrefresh, | |
1134 | (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0); | |
1135 | ||
1136 | if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) || | |
1137 | (w >= 1024 && w <= 1280 && h >= 576 && h <= 720) || | |
1138 | (w >= 1664 && w <= 1920 && h >= 936 && h <= 1080)) | |
1139 | return 0; | |
1140 | ||
1141 | return -EINVAL; | |
1142 | } | |
1143 | ||
1144 | static struct exynos_drm_manager_ops mixer_manager_ops = { | |
4551789f | 1145 | .initialize = mixer_initialize, |
f041b257 SP |
1146 | .remove = mixer_mgr_remove, |
1147 | .dpms = mixer_dpms, | |
d8408326 SWK |
1148 | .enable_vblank = mixer_enable_vblank, |
1149 | .disable_vblank = mixer_disable_vblank, | |
8137a2e2 | 1150 | .wait_for_vblank = mixer_wait_for_vblank, |
d8408326 SWK |
1151 | .win_mode_set = mixer_win_mode_set, |
1152 | .win_commit = mixer_win_commit, | |
1153 | .win_disable = mixer_win_disable, | |
f041b257 | 1154 | }; |
0ea6822f | 1155 | |
f041b257 SP |
1156 | static struct exynos_drm_manager mixer_manager = { |
1157 | .type = EXYNOS_DISPLAY_TYPE_HDMI, | |
1158 | .ops = &mixer_manager_ops, | |
d8408326 SWK |
1159 | }; |
1160 | ||
def5e095 RS |
1161 | static struct mixer_drv_data exynos5420_mxr_drv_data = { |
1162 | .version = MXR_VER_128_0_0_184, | |
1163 | .is_vp_enabled = 0, | |
1164 | }; | |
1165 | ||
cc57caf0 | 1166 | static struct mixer_drv_data exynos5250_mxr_drv_data = { |
aaf8b49e RS |
1167 | .version = MXR_VER_16_0_33_0, |
1168 | .is_vp_enabled = 0, | |
1169 | }; | |
1170 | ||
cc57caf0 | 1171 | static struct mixer_drv_data exynos4210_mxr_drv_data = { |
1e123441 | 1172 | .version = MXR_VER_0_0_0_16, |
1b8e5747 | 1173 | .is_vp_enabled = 1, |
1e123441 RS |
1174 | }; |
1175 | ||
1176 | static struct platform_device_id mixer_driver_types[] = { | |
1177 | { | |
1178 | .name = "s5p-mixer", | |
cc57caf0 | 1179 | .driver_data = (unsigned long)&exynos4210_mxr_drv_data, |
aaf8b49e RS |
1180 | }, { |
1181 | .name = "exynos5-mixer", | |
cc57caf0 | 1182 | .driver_data = (unsigned long)&exynos5250_mxr_drv_data, |
aaf8b49e RS |
1183 | }, { |
1184 | /* end node */ | |
1185 | } | |
1186 | }; | |
1187 | ||
1188 | static struct of_device_id mixer_match_types[] = { | |
1189 | { | |
1190 | .compatible = "samsung,exynos5-mixer", | |
cc57caf0 RS |
1191 | .data = &exynos5250_mxr_drv_data, |
1192 | }, { | |
1193 | .compatible = "samsung,exynos5250-mixer", | |
1194 | .data = &exynos5250_mxr_drv_data, | |
def5e095 RS |
1195 | }, { |
1196 | .compatible = "samsung,exynos5420-mixer", | |
1197 | .data = &exynos5420_mxr_drv_data, | |
1e123441 RS |
1198 | }, { |
1199 | /* end node */ | |
1200 | } | |
1201 | }; | |
1202 | ||
56550d94 | 1203 | static int mixer_probe(struct platform_device *pdev) |
d8408326 SWK |
1204 | { |
1205 | struct device *dev = &pdev->dev; | |
d8408326 | 1206 | struct mixer_context *ctx; |
1e123441 | 1207 | struct mixer_drv_data *drv; |
d8408326 SWK |
1208 | |
1209 | dev_info(dev, "probe start\n"); | |
1210 | ||
f041b257 SP |
1211 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
1212 | if (!ctx) { | |
1213 | DRM_ERROR("failed to alloc mixer context.\n"); | |
d8408326 | 1214 | return -ENOMEM; |
f041b257 | 1215 | } |
d8408326 | 1216 | |
cf8fc4f1 JS |
1217 | mutex_init(&ctx->mixer_mutex); |
1218 | ||
aaf8b49e RS |
1219 | if (dev->of_node) { |
1220 | const struct of_device_id *match; | |
e436b09d | 1221 | match = of_match_node(mixer_match_types, dev->of_node); |
2cdc53b3 | 1222 | drv = (struct mixer_drv_data *)match->data; |
aaf8b49e RS |
1223 | } else { |
1224 | drv = (struct mixer_drv_data *) | |
1225 | platform_get_device_id(pdev)->driver_data; | |
1226 | } | |
1227 | ||
4551789f | 1228 | ctx->pdev = pdev; |
d873ab99 | 1229 | ctx->dev = dev; |
1b8e5747 | 1230 | ctx->vp_enabled = drv->is_vp_enabled; |
1e123441 | 1231 | ctx->mxr_ver = drv->version; |
57ed0f7b | 1232 | init_waitqueue_head(&ctx->wait_vsync_queue); |
6e95d5e6 | 1233 | atomic_set(&ctx->wait_vsync_event, 0); |
d8408326 | 1234 | |
f041b257 SP |
1235 | mixer_manager.ctx = ctx; |
1236 | platform_set_drvdata(pdev, &mixer_manager); | |
1237 | exynos_drm_manager_register(&mixer_manager); | |
d8408326 | 1238 | |
cf8fc4f1 | 1239 | pm_runtime_enable(dev); |
d8408326 SWK |
1240 | |
1241 | return 0; | |
d8408326 SWK |
1242 | } |
1243 | ||
1244 | static int mixer_remove(struct platform_device *pdev) | |
1245 | { | |
9416dfa7 | 1246 | dev_info(&pdev->dev, "remove successful\n"); |
d8408326 | 1247 | |
cf8fc4f1 JS |
1248 | pm_runtime_disable(&pdev->dev); |
1249 | ||
d8408326 SWK |
1250 | return 0; |
1251 | } | |
1252 | ||
1253 | struct platform_driver mixer_driver = { | |
1254 | .driver = { | |
aaf8b49e | 1255 | .name = "exynos-mixer", |
d8408326 | 1256 | .owner = THIS_MODULE, |
aaf8b49e | 1257 | .of_match_table = mixer_match_types, |
d8408326 SWK |
1258 | }, |
1259 | .probe = mixer_probe, | |
56550d94 | 1260 | .remove = mixer_remove, |
1e123441 | 1261 | .id_table = mixer_driver_types, |
d8408326 | 1262 | }; |