This source file includes following definitions.
- get_kms
- bs_init
- bs_fini
- bs_set
- bs_init
- bs_fini
- bs_set
- mdp5_encoder_destroy
- mdp5_vid_encoder_mode_set
- mdp5_vid_encoder_disable
- mdp5_vid_encoder_enable
- mdp5_encoder_mode_set
- mdp5_encoder_disable
- mdp5_encoder_enable
- mdp5_encoder_atomic_check
- mdp5_encoder_get_linecount
- mdp5_encoder_get_framecount
- mdp5_vid_encoder_set_split_display
- mdp5_encoder_set_intf_mode
- mdp5_encoder_init
1
2
3
4
5
6
7
8 #include <drm/drm_crtc.h>
9 #include <drm/drm_probe_helper.h>
10
11 #include "mdp5_kms.h"
12
13 static struct mdp5_kms *get_kms(struct drm_encoder *encoder)
14 {
15 struct msm_drm_private *priv = encoder->dev->dev_private;
16 return to_mdp5_kms(to_mdp_kms(priv->kms));
17 }
18
19 #ifdef DOWNSTREAM_CONFIG_MSM_BUS_SCALING
20 #include <mach/board.h>
21 #include <mach/msm_bus.h>
22 #include <mach/msm_bus_board.h>
23 #define MDP_BUS_VECTOR_ENTRY(ab_val, ib_val) \
24 { \
25 .src = MSM_BUS_MASTER_MDP_PORT0, \
26 .dst = MSM_BUS_SLAVE_EBI_CH0, \
27 .ab = (ab_val), \
28 .ib = (ib_val), \
29 }
30
31 static struct msm_bus_vectors mdp_bus_vectors[] = {
32 MDP_BUS_VECTOR_ENTRY(0, 0),
33 MDP_BUS_VECTOR_ENTRY(2000000000, 2000000000),
34 };
35 static struct msm_bus_paths mdp_bus_usecases[] = { {
36 .num_paths = 1,
37 .vectors = &mdp_bus_vectors[0],
38 }, {
39 .num_paths = 1,
40 .vectors = &mdp_bus_vectors[1],
41 } };
42 static struct msm_bus_scale_pdata mdp_bus_scale_table = {
43 .usecase = mdp_bus_usecases,
44 .num_usecases = ARRAY_SIZE(mdp_bus_usecases),
45 .name = "mdss_mdp",
46 };
47
48 static void bs_init(struct mdp5_encoder *mdp5_encoder)
49 {
50 mdp5_encoder->bsc = msm_bus_scale_register_client(
51 &mdp_bus_scale_table);
52 DBG("bus scale client: %08x", mdp5_encoder->bsc);
53 }
54
55 static void bs_fini(struct mdp5_encoder *mdp5_encoder)
56 {
57 if (mdp5_encoder->bsc) {
58 msm_bus_scale_unregister_client(mdp5_encoder->bsc);
59 mdp5_encoder->bsc = 0;
60 }
61 }
62
63 static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx)
64 {
65 if (mdp5_encoder->bsc) {
66 DBG("set bus scaling: %d", idx);
67
68
69
70
71 idx = 1;
72 msm_bus_scale_client_update_request(mdp5_encoder->bsc, idx);
73 }
74 }
75 #else
76 static void bs_init(struct mdp5_encoder *mdp5_encoder) {}
77 static void bs_fini(struct mdp5_encoder *mdp5_encoder) {}
78 static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx) {}
79 #endif
80
81 static void mdp5_encoder_destroy(struct drm_encoder *encoder)
82 {
83 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
84 bs_fini(mdp5_encoder);
85 drm_encoder_cleanup(encoder);
86 kfree(mdp5_encoder);
87 }
88
89 static const struct drm_encoder_funcs mdp5_encoder_funcs = {
90 .destroy = mdp5_encoder_destroy,
91 };
92
93 static void mdp5_vid_encoder_mode_set(struct drm_encoder *encoder,
94 struct drm_display_mode *mode,
95 struct drm_display_mode *adjusted_mode)
96 {
97 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
98 struct mdp5_kms *mdp5_kms = get_kms(encoder);
99 struct drm_device *dev = encoder->dev;
100 struct drm_connector *connector;
101 int intf = mdp5_encoder->intf->num;
102 uint32_t dtv_hsync_skew, vsync_period, vsync_len, ctrl_pol;
103 uint32_t display_v_start, display_v_end;
104 uint32_t hsync_start_x, hsync_end_x;
105 uint32_t format = 0x2100;
106 unsigned long flags;
107
108 mode = adjusted_mode;
109
110 DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
111
112 ctrl_pol = 0;
113
114
115 if (mdp5_encoder->intf->type != INTF_DSI) {
116 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
117 ctrl_pol |= MDP5_INTF_POLARITY_CTL_HSYNC_LOW;
118 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
119 ctrl_pol |= MDP5_INTF_POLARITY_CTL_VSYNC_LOW;
120 }
121
122
123 dtv_hsync_skew = 0;
124
125
126 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
127 if (connector->encoder == encoder) {
128 switch (connector->display_info.bpc) {
129 case 4:
130 format |= 0;
131 break;
132 case 5:
133 format |= 0x15;
134 break;
135 case 6:
136 format |= 0x2A;
137 break;
138 case 8:
139 default:
140 format |= 0x3F;
141 break;
142 }
143 break;
144 }
145 }
146
147 hsync_start_x = (mode->htotal - mode->hsync_start);
148 hsync_end_x = mode->htotal - (mode->hsync_start - mode->hdisplay) - 1;
149
150 vsync_period = mode->vtotal * mode->htotal;
151 vsync_len = (mode->vsync_end - mode->vsync_start) * mode->htotal;
152 display_v_start = (mode->vtotal - mode->vsync_start) * mode->htotal + dtv_hsync_skew;
153 display_v_end = vsync_period - ((mode->vsync_start - mode->vdisplay) * mode->htotal) + dtv_hsync_skew - 1;
154
155
156
157
158
159
160 if (mdp5_encoder->intf->type == INTF_eDP) {
161 display_v_start += mode->htotal - mode->hsync_start;
162 display_v_end -= mode->hsync_start - mode->hdisplay;
163 }
164
165 spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
166
167 mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_CTL(intf),
168 MDP5_INTF_HSYNC_CTL_PULSEW(mode->hsync_end - mode->hsync_start) |
169 MDP5_INTF_HSYNC_CTL_PERIOD(mode->htotal));
170 mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_PERIOD_F0(intf), vsync_period);
171 mdp5_write(mdp5_kms, REG_MDP5_INTF_VSYNC_LEN_F0(intf), vsync_len);
172 mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_HCTL(intf),
173 MDP5_INTF_DISPLAY_HCTL_START(hsync_start_x) |
174 MDP5_INTF_DISPLAY_HCTL_END(hsync_end_x));
175 mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VSTART_F0(intf), display_v_start);
176 mdp5_write(mdp5_kms, REG_MDP5_INTF_DISPLAY_VEND_F0(intf), display_v_end);
177 mdp5_write(mdp5_kms, REG_MDP5_INTF_BORDER_COLOR(intf), 0);
178 mdp5_write(mdp5_kms, REG_MDP5_INTF_UNDERFLOW_COLOR(intf), 0xff);
179 mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_SKEW(intf), dtv_hsync_skew);
180 mdp5_write(mdp5_kms, REG_MDP5_INTF_POLARITY_CTL(intf), ctrl_pol);
181 mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_HCTL(intf),
182 MDP5_INTF_ACTIVE_HCTL_START(0) |
183 MDP5_INTF_ACTIVE_HCTL_END(0));
184 mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VSTART_F0(intf), 0);
185 mdp5_write(mdp5_kms, REG_MDP5_INTF_ACTIVE_VEND_F0(intf), 0);
186 mdp5_write(mdp5_kms, REG_MDP5_INTF_PANEL_FORMAT(intf), format);
187 mdp5_write(mdp5_kms, REG_MDP5_INTF_FRAME_LINE_COUNT_EN(intf), 0x3);
188
189 spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
190
191 mdp5_crtc_set_pipeline(encoder->crtc);
192 }
193
194 static void mdp5_vid_encoder_disable(struct drm_encoder *encoder)
195 {
196 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
197 struct mdp5_kms *mdp5_kms = get_kms(encoder);
198 struct mdp5_ctl *ctl = mdp5_encoder->ctl;
199 struct mdp5_pipeline *pipeline = mdp5_crtc_get_pipeline(encoder->crtc);
200 struct mdp5_hw_mixer *mixer = mdp5_crtc_get_mixer(encoder->crtc);
201 struct mdp5_interface *intf = mdp5_encoder->intf;
202 int intfn = mdp5_encoder->intf->num;
203 unsigned long flags;
204
205 if (WARN_ON(!mdp5_encoder->enabled))
206 return;
207
208 mdp5_ctl_set_encoder_state(ctl, pipeline, false);
209
210 spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
211 mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 0);
212 spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
213 mdp5_ctl_commit(ctl, pipeline, mdp_ctl_flush_mask_encoder(intf), true);
214
215
216
217
218
219
220
221
222
223 mdp_irq_wait(&mdp5_kms->base, intf2vblank(mixer, intf));
224
225 bs_set(mdp5_encoder, 0);
226
227 mdp5_encoder->enabled = false;
228 }
229
230 static void mdp5_vid_encoder_enable(struct drm_encoder *encoder)
231 {
232 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
233 struct mdp5_kms *mdp5_kms = get_kms(encoder);
234 struct mdp5_ctl *ctl = mdp5_encoder->ctl;
235 struct mdp5_interface *intf = mdp5_encoder->intf;
236 struct mdp5_pipeline *pipeline = mdp5_crtc_get_pipeline(encoder->crtc);
237 int intfn = intf->num;
238 unsigned long flags;
239
240 if (WARN_ON(mdp5_encoder->enabled))
241 return;
242
243 bs_set(mdp5_encoder, 1);
244 spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
245 mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 1);
246 spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
247 mdp5_ctl_commit(ctl, pipeline, mdp_ctl_flush_mask_encoder(intf), true);
248
249 mdp5_ctl_set_encoder_state(ctl, pipeline, true);
250
251 mdp5_encoder->enabled = true;
252 }
253
254 static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
255 struct drm_display_mode *mode,
256 struct drm_display_mode *adjusted_mode)
257 {
258 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
259 struct mdp5_interface *intf = mdp5_encoder->intf;
260
261 if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
262 mdp5_cmd_encoder_mode_set(encoder, mode, adjusted_mode);
263 else
264 mdp5_vid_encoder_mode_set(encoder, mode, adjusted_mode);
265 }
266
267 static void mdp5_encoder_disable(struct drm_encoder *encoder)
268 {
269 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
270 struct mdp5_interface *intf = mdp5_encoder->intf;
271
272 if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
273 mdp5_cmd_encoder_disable(encoder);
274 else
275 mdp5_vid_encoder_disable(encoder);
276 }
277
278 static void mdp5_encoder_enable(struct drm_encoder *encoder)
279 {
280 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
281 struct mdp5_interface *intf = mdp5_encoder->intf;
282
283 struct drm_crtc_state *cstate = encoder->crtc->state;
284
285 mdp5_encoder_mode_set(encoder, &cstate->mode, &cstate->adjusted_mode);
286
287 if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
288 mdp5_cmd_encoder_enable(encoder);
289 else
290 mdp5_vid_encoder_enable(encoder);
291 }
292
293 static int mdp5_encoder_atomic_check(struct drm_encoder *encoder,
294 struct drm_crtc_state *crtc_state,
295 struct drm_connector_state *conn_state)
296 {
297 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
298 struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc_state);
299 struct mdp5_interface *intf = mdp5_encoder->intf;
300 struct mdp5_ctl *ctl = mdp5_encoder->ctl;
301
302 mdp5_cstate->ctl = ctl;
303 mdp5_cstate->pipeline.intf = intf;
304
305
306
307
308
309
310
311
312
313 if (drm_atomic_crtc_needs_modeset(crtc_state))
314 mdp5_cstate->defer_start = true;
315
316 return 0;
317 }
318
319 static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = {
320 .disable = mdp5_encoder_disable,
321 .enable = mdp5_encoder_enable,
322 .atomic_check = mdp5_encoder_atomic_check,
323 };
324
325 int mdp5_encoder_get_linecount(struct drm_encoder *encoder)
326 {
327 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
328 struct mdp5_kms *mdp5_kms = get_kms(encoder);
329 int intf = mdp5_encoder->intf->num;
330
331 return mdp5_read(mdp5_kms, REG_MDP5_INTF_LINE_COUNT(intf));
332 }
333
334 u32 mdp5_encoder_get_framecount(struct drm_encoder *encoder)
335 {
336 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
337 struct mdp5_kms *mdp5_kms = get_kms(encoder);
338 int intf = mdp5_encoder->intf->num;
339
340 return mdp5_read(mdp5_kms, REG_MDP5_INTF_FRAME_COUNT(intf));
341 }
342
343 int mdp5_vid_encoder_set_split_display(struct drm_encoder *encoder,
344 struct drm_encoder *slave_encoder)
345 {
346 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
347 struct mdp5_encoder *mdp5_slave_enc = to_mdp5_encoder(slave_encoder);
348 struct mdp5_kms *mdp5_kms;
349 struct device *dev;
350 int intf_num;
351 u32 data = 0;
352
353 if (!encoder || !slave_encoder)
354 return -EINVAL;
355
356 mdp5_kms = get_kms(encoder);
357 intf_num = mdp5_encoder->intf->num;
358
359
360
361
362 if (intf_num == 1)
363 data |= MDP5_SPLIT_DPL_LOWER_INTF2_TG_SYNC;
364 else if (intf_num == 2)
365 data |= MDP5_SPLIT_DPL_LOWER_INTF1_TG_SYNC;
366 else
367 return -EINVAL;
368
369 dev = &mdp5_kms->pdev->dev;
370
371 pm_runtime_get_sync(dev);
372
373
374 mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_UPPER, 0);
375 mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_LOWER, data);
376 mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_EN, 1);
377
378 mdp5_ctl_pair(mdp5_encoder->ctl, mdp5_slave_enc->ctl, true);
379
380 pm_runtime_put_sync(dev);
381
382 return 0;
383 }
384
385 void mdp5_encoder_set_intf_mode(struct drm_encoder *encoder, bool cmd_mode)
386 {
387 struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
388 struct mdp5_interface *intf = mdp5_encoder->intf;
389
390
391 if (cmd_mode) {
392 WARN_ON(intf->type != INTF_DSI);
393 intf->mode = MDP5_INTF_DSI_MODE_COMMAND;
394 } else {
395 if (intf->type == INTF_DSI)
396 intf->mode = MDP5_INTF_DSI_MODE_VIDEO;
397 else
398 intf->mode = MDP5_INTF_MODE_NONE;
399 }
400 }
401
402
403 struct drm_encoder *mdp5_encoder_init(struct drm_device *dev,
404 struct mdp5_interface *intf,
405 struct mdp5_ctl *ctl)
406 {
407 struct drm_encoder *encoder = NULL;
408 struct mdp5_encoder *mdp5_encoder;
409 int enc_type = (intf->type == INTF_DSI) ?
410 DRM_MODE_ENCODER_DSI : DRM_MODE_ENCODER_TMDS;
411 int ret;
412
413 mdp5_encoder = kzalloc(sizeof(*mdp5_encoder), GFP_KERNEL);
414 if (!mdp5_encoder) {
415 ret = -ENOMEM;
416 goto fail;
417 }
418
419 encoder = &mdp5_encoder->base;
420 mdp5_encoder->ctl = ctl;
421 mdp5_encoder->intf = intf;
422
423 spin_lock_init(&mdp5_encoder->intf_lock);
424
425 drm_encoder_init(dev, encoder, &mdp5_encoder_funcs, enc_type, NULL);
426
427 drm_encoder_helper_add(encoder, &mdp5_encoder_helper_funcs);
428
429 bs_init(mdp5_encoder);
430
431 return encoder;
432
433 fail:
434 if (encoder)
435 mdp5_encoder_destroy(encoder);
436
437 return ERR_PTR(ret);
438 }