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authorTomi Valkeinen <tomi.valkeinen@nokia.com>2009-08-05 09:18:06 -0400
committerTomi Valkeinen <tomi.valkeinen@nokia.com>2009-12-09 05:04:36 -0500
commitb288627350c456fe4006c3c4419584969a7ae6a1 (patch)
tree8d49e758a0ebf3b174641bc8cc354bcf3bd50ba6
parent553c48cf5b1841127b019c53dd1aeef3d3f338b0 (diff)
OMAP: DSS2: Video encoder driver
VENC (video encoder) driver implements OMAP's analog S-Video/Composite TV-out. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com>
Diffstat
-rw-r--r--drivers/video/omap2/dss/venc.c797
1 files changed, 797 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
new file mode 100644
index 000000000000..749a5a0f5be4
--- /dev/null
+++ b/drivers/video/omap2/dss/venc.c
@@ -0,0 +1,797 @@
1/*
2 * linux/drivers/video/omap2/dss/venc.c
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * VENC settings from TI's DSS driver
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published by
11 * the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * more details.
17 *
18 * You should have received a copy of the GNU General Public License along with
19 * this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#define DSS_SUBSYS_NAME "VENC"
23
24#include <linux/kernel.h>
25#include <linux/module.h>
26#include <linux/clk.h>
27#include <linux/err.h>
28#include <linux/io.h>
29#include <linux/mutex.h>
30#include <linux/completion.h>
31#include <linux/delay.h>
32#include <linux/string.h>
33#include <linux/seq_file.h>
34#include <linux/platform_device.h>
35#include <linux/regulator/consumer.h>
36
37#include <plat/display.h>
38#include <plat/cpu.h>
39
40#include "dss.h"
41
42#define VENC_BASE 0x48050C00
43
44/* Venc registers */
45#define VENC_REV_ID 0x00
46#define VENC_STATUS 0x04
47#define VENC_F_CONTROL 0x08
48#define VENC_VIDOUT_CTRL 0x10
49#define VENC_SYNC_CTRL 0x14
50#define VENC_LLEN 0x1C
51#define VENC_FLENS 0x20
52#define VENC_HFLTR_CTRL 0x24
53#define VENC_CC_CARR_WSS_CARR 0x28
54#define VENC_C_PHASE 0x2C
55#define VENC_GAIN_U 0x30
56#define VENC_GAIN_V 0x34
57#define VENC_GAIN_Y 0x38
58#define VENC_BLACK_LEVEL 0x3C
59#define VENC_BLANK_LEVEL 0x40
60#define VENC_X_COLOR 0x44
61#define VENC_M_CONTROL 0x48
62#define VENC_BSTAMP_WSS_DATA 0x4C
63#define VENC_S_CARR 0x50
64#define VENC_LINE21 0x54
65#define VENC_LN_SEL 0x58
66#define VENC_L21__WC_CTL 0x5C
67#define VENC_HTRIGGER_VTRIGGER 0x60
68#define VENC_SAVID__EAVID 0x64
69#define VENC_FLEN__FAL 0x68
70#define VENC_LAL__PHASE_RESET 0x6C
71#define VENC_HS_INT_START_STOP_X 0x70
72#define VENC_HS_EXT_START_STOP_X 0x74
73#define VENC_VS_INT_START_X 0x78
74#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
75#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
76#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
77#define VENC_VS_EXT_STOP_Y 0x88
78#define VENC_AVID_START_STOP_X 0x90
79#define VENC_AVID_START_STOP_Y 0x94
80#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
81#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
82#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
83#define VENC_TVDETGP_INT_START_STOP_X 0xB0
84#define VENC_TVDETGP_INT_START_STOP_Y 0xB4
85#define VENC_GEN_CTRL 0xB8
86#define VENC_OUTPUT_CONTROL 0xC4
87#define VENC_OUTPUT_TEST 0xC8
88#define VENC_DAC_B__DAC_C 0xC8
89
90struct venc_config {
91 u32 f_control;
92 u32 vidout_ctrl;
93 u32 sync_ctrl;
94 u32 llen;
95 u32 flens;
96 u32 hfltr_ctrl;
97 u32 cc_carr_wss_carr;
98 u32 c_phase;
99 u32 gain_u;
100 u32 gain_v;
101 u32 gain_y;
102 u32 black_level;
103 u32 blank_level;
104 u32 x_color;
105 u32 m_control;
106 u32 bstamp_wss_data;
107 u32 s_carr;
108 u32 line21;
109 u32 ln_sel;
110 u32 l21__wc_ctl;
111 u32 htrigger_vtrigger;
112 u32 savid__eavid;
113 u32 flen__fal;
114 u32 lal__phase_reset;
115 u32 hs_int_start_stop_x;
116 u32 hs_ext_start_stop_x;
117 u32 vs_int_start_x;
118 u32 vs_int_stop_x__vs_int_start_y;
119 u32 vs_int_stop_y__vs_ext_start_x;
120 u32 vs_ext_stop_x__vs_ext_start_y;
121 u32 vs_ext_stop_y;
122 u32 avid_start_stop_x;
123 u32 avid_start_stop_y;
124 u32 fid_int_start_x__fid_int_start_y;
125 u32 fid_int_offset_y__fid_ext_start_x;
126 u32 fid_ext_start_y__fid_ext_offset_y;
127 u32 tvdetgp_int_start_stop_x;
128 u32 tvdetgp_int_start_stop_y;
129 u32 gen_ctrl;
130};
131
132/* from TRM */
133static const struct venc_config venc_config_pal_trm = {
134 .f_control = 0,
135 .vidout_ctrl = 1,
136 .sync_ctrl = 0x40,
137 .llen = 0x35F, /* 863 */
138 .flens = 0x270, /* 624 */
139 .hfltr_ctrl = 0,
140 .cc_carr_wss_carr = 0x2F7225ED,
141 .c_phase = 0,
142 .gain_u = 0x111,
143 .gain_v = 0x181,
144 .gain_y = 0x140,
145 .black_level = 0x3B,
146 .blank_level = 0x3B,
147 .x_color = 0x7,
148 .m_control = 0x2,
149 .bstamp_wss_data = 0x3F,
150 .s_carr = 0x2A098ACB,
151 .line21 = 0,
152 .ln_sel = 0x01290015,
153 .l21__wc_ctl = 0x0000F603,
154 .htrigger_vtrigger = 0,
155
156 .savid__eavid = 0x06A70108,
157 .flen__fal = 0x00180270,
158 .lal__phase_reset = 0x00040135,
159 .hs_int_start_stop_x = 0x00880358,
160 .hs_ext_start_stop_x = 0x000F035F,
161 .vs_int_start_x = 0x01A70000,
162 .vs_int_stop_x__vs_int_start_y = 0x000001A7,
163 .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
164 .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
165 .vs_ext_stop_y = 0x00000025,
166 .avid_start_stop_x = 0x03530083,
167 .avid_start_stop_y = 0x026C002E,
168 .fid_int_start_x__fid_int_start_y = 0x0001008A,
169 .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
170 .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
171
172 .tvdetgp_int_start_stop_x = 0x00140001,
173 .tvdetgp_int_start_stop_y = 0x00010001,
174 .gen_ctrl = 0x00FF0000,
175};
176
177/* from TRM */
178static const struct venc_config venc_config_ntsc_trm = {
179 .f_control = 0,
180 .vidout_ctrl = 1,
181 .sync_ctrl = 0x8040,
182 .llen = 0x359,
183 .flens = 0x20C,
184 .hfltr_ctrl = 0,
185 .cc_carr_wss_carr = 0x043F2631,
186 .c_phase = 0,
187 .gain_u = 0x102,
188 .gain_v = 0x16C,
189 .gain_y = 0x12F,
190 .black_level = 0x43,
191 .blank_level = 0x38,
192 .x_color = 0x7,
193 .m_control = 0x1,
194 .bstamp_wss_data = 0x38,
195 .s_carr = 0x21F07C1F,
196 .line21 = 0,
197 .ln_sel = 0x01310011,
198 .l21__wc_ctl = 0x0000F003,
199 .htrigger_vtrigger = 0,
200
201 .savid__eavid = 0x069300F4,
202 .flen__fal = 0x0016020C,
203 .lal__phase_reset = 0x00060107,
204 .hs_int_start_stop_x = 0x008E0350,
205 .hs_ext_start_stop_x = 0x000F0359,
206 .vs_int_start_x = 0x01A00000,
207 .vs_int_stop_x__vs_int_start_y = 0x020701A0,
208 .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
209 .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
210 .vs_ext_stop_y = 0x00000006,
211 .avid_start_stop_x = 0x03480078,
212 .avid_start_stop_y = 0x02060024,
213 .fid_int_start_x__fid_int_start_y = 0x0001008A,
214 .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
215 .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
216
217 .tvdetgp_int_start_stop_x = 0x00140001,
218 .tvdetgp_int_start_stop_y = 0x00010001,
219 .gen_ctrl = 0x00F90000,
220};
221
222static const struct venc_config venc_config_pal_bdghi = {
223 .f_control = 0,
224 .vidout_ctrl = 0,
225 .sync_ctrl = 0,
226 .hfltr_ctrl = 0,
227 .x_color = 0,
228 .line21 = 0,
229 .ln_sel = 21,
230 .htrigger_vtrigger = 0,
231 .tvdetgp_int_start_stop_x = 0x00140001,
232 .tvdetgp_int_start_stop_y = 0x00010001,
233 .gen_ctrl = 0x00FB0000,
234
235 .llen = 864-1,
236 .flens = 625-1,
237 .cc_carr_wss_carr = 0x2F7625ED,
238 .c_phase = 0xDF,
239 .gain_u = 0x111,
240 .gain_v = 0x181,
241 .gain_y = 0x140,
242 .black_level = 0x3e,
243 .blank_level = 0x3e,
244 .m_control = 0<<2 | 1<<1,
245 .bstamp_wss_data = 0x42,
246 .s_carr = 0x2a098acb,
247 .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
248 .savid__eavid = 0x06A70108,
249 .flen__fal = 23<<16 | 624<<0,
250 .lal__phase_reset = 2<<17 | 310<<0,
251 .hs_int_start_stop_x = 0x00920358,
252 .hs_ext_start_stop_x = 0x000F035F,
253 .vs_int_start_x = 0x1a7<<16,
254 .vs_int_stop_x__vs_int_start_y = 0x000601A7,
255 .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
256 .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
257 .vs_ext_stop_y = 0x05,
258 .avid_start_stop_x = 0x03530082,
259 .avid_start_stop_y = 0x0270002E,
260 .fid_int_start_x__fid_int_start_y = 0x0005008A,
261 .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
262 .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
263};
264
265const struct omap_video_timings omap_dss_pal_timings = {
266 .x_res = 720,
267 .y_res = 574,
268 .pixel_clock = 13500,
269 .hsw = 64,
270 .hfp = 12,
271 .hbp = 68,
272 .vsw = 5,
273 .vfp = 5,
274 .vbp = 41,
275};
276EXPORT_SYMBOL(omap_dss_pal_timings);
277
278const struct omap_video_timings omap_dss_ntsc_timings = {
279 .x_res = 720,
280 .y_res = 482,
281 .pixel_clock = 13500,
282 .hsw = 64,
283 .hfp = 16,
284 .hbp = 58,
285 .vsw = 6,
286 .vfp = 6,
287 .vbp = 31,
288};
289EXPORT_SYMBOL(omap_dss_ntsc_timings);
290
291static struct {
292 void __iomem *base;
293 struct mutex venc_lock;
294 u32 wss_data;
295 struct regulator *vdda_dac_reg;
296} venc;
297
298static inline void venc_write_reg(int idx, u32 val)
299{
300 __raw_writel(val, venc.base + idx);
301}
302
303static inline u32 venc_read_reg(int idx)
304{
305 u32 l = __raw_readl(venc.base + idx);
306 return l;
307}
308
309static void venc_write_config(const struct venc_config *config)
310{
311 DSSDBG("write venc conf\n");
312
313 venc_write_reg(VENC_LLEN, config->llen);
314 venc_write_reg(VENC_FLENS, config->flens);
315 venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
316 venc_write_reg(VENC_C_PHASE, config->c_phase);
317 venc_write_reg(VENC_GAIN_U, config->gain_u);
318 venc_write_reg(VENC_GAIN_V, config->gain_v);
319 venc_write_reg(VENC_GAIN_Y, config->gain_y);
320 venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
321 venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
322 venc_write_reg(VENC_M_CONTROL, config->m_control);
323 venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
324 venc.wss_data);
325 venc_write_reg(VENC_S_CARR, config->s_carr);
326 venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
327 venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
328 venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
329 venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
330 venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
331 venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
332 venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
333 venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
334 config->vs_int_stop_x__vs_int_start_y);
335 venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
336 config->vs_int_stop_y__vs_ext_start_x);
337 venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
338 config->vs_ext_stop_x__vs_ext_start_y);
339 venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
340 venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
341 venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
342 venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
343 config->fid_int_start_x__fid_int_start_y);
344 venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
345 config->fid_int_offset_y__fid_ext_start_x);
346 venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
347 config->fid_ext_start_y__fid_ext_offset_y);
348
349 venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
350 venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
351 venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
352 venc_write_reg(VENC_X_COLOR, config->x_color);
353 venc_write_reg(VENC_LINE21, config->line21);
354 venc_write_reg(VENC_LN_SEL, config->ln_sel);
355 venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
356 venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
357 config->tvdetgp_int_start_stop_x);
358 venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
359 config->tvdetgp_int_start_stop_y);
360 venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
361 venc_write_reg(VENC_F_CONTROL, config->f_control);
362 venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
363}
364
365static void venc_reset(void)
366{
367 int t = 1000;
368
369 venc_write_reg(VENC_F_CONTROL, 1<<8);
370 while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
371 if (--t == 0) {
372 DSSERR("Failed to reset venc\n");
373 return;
374 }
375 }
376
377 /* the magical sleep that makes things work */
378 msleep(20);
379}
380
381static void venc_enable_clocks(int enable)
382{
383 if (enable)
384 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
385 DSS_CLK_96M);
386 else
387 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
388 DSS_CLK_96M);
389}
390
391static const struct venc_config *venc_timings_to_config(
392 struct omap_video_timings *timings)
393{
394 if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
395 return &venc_config_pal_trm;
396
397 if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
398 return &venc_config_ntsc_trm;
399
400 BUG();
401}
402
403
404
405
406
407/* driver */
408static int venc_panel_probe(struct omap_dss_device *dssdev)
409{
410 dssdev->panel.timings = omap_dss_pal_timings;
411
412 return 0;
413}
414
415static void venc_panel_remove(struct omap_dss_device *dssdev)
416{
417}
418
419static int venc_panel_enable(struct omap_dss_device *dssdev)
420{
421 int r = 0;
422
423 /* wait couple of vsyncs until enabling the LCD */
424 msleep(50);
425
426 if (dssdev->platform_enable)
427 r = dssdev->platform_enable(dssdev);
428
429 return r;
430}
431
432static void venc_panel_disable(struct omap_dss_device *dssdev)
433{
434 if (dssdev->platform_disable)
435 dssdev->platform_disable(dssdev);
436
437 /* wait at least 5 vsyncs after disabling the LCD */
438
439 msleep(100);
440}
441
442static int venc_panel_suspend(struct omap_dss_device *dssdev)
443{
444 venc_panel_disable(dssdev);
445 return 0;
446}
447
448static int venc_panel_resume(struct omap_dss_device *dssdev)
449{
450 return venc_panel_enable(dssdev);
451}
452
453static struct omap_dss_driver venc_driver = {
454 .probe = venc_panel_probe,
455 .remove = venc_panel_remove,
456
457 .enable = venc_panel_enable,
458 .disable = venc_panel_disable,
459 .suspend = venc_panel_suspend,
460 .resume = venc_panel_resume,
461
462 .driver = {
463 .name = "venc",
464 .owner = THIS_MODULE,
465 },
466};
467/* driver end */
468
469
470
471int venc_init(struct platform_device *pdev)
472{
473 u8 rev_id;
474
475 mutex_init(&venc.venc_lock);
476
477 venc.wss_data = 0;
478
479 venc.base = ioremap(VENC_BASE, SZ_1K);
480 if (!venc.base) {
481 DSSERR("can't ioremap VENC\n");
482 return -ENOMEM;
483 }
484
485 venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac");
486 if (IS_ERR(venc.vdda_dac_reg)) {
487 iounmap(venc.base);
488 DSSERR("can't get VDDA_DAC regulator\n");
489 return PTR_ERR(venc.vdda_dac_reg);
490 }
491
492 venc_enable_clocks(1);
493
494 rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
495 printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
496
497 venc_enable_clocks(0);
498
499 return omap_dss_register_driver(&venc_driver);
500}
501
502void venc_exit(void)
503{
504 omap_dss_unregister_driver(&venc_driver);
505
506 regulator_put(venc.vdda_dac_reg);
507
508 iounmap(venc.base);
509}
510
511static void venc_power_on(struct omap_dss_device *dssdev)
512{
513 u32 l;
514
515 venc_enable_clocks(1);
516
517 venc_reset();
518 venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
519
520 dss_set_venc_output(dssdev->phy.venc.type);
521 dss_set_dac_pwrdn_bgz(1);
522
523 l = 0;
524
525 if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
526 l |= 1 << 1;
527 else /* S-Video */
528 l |= (1 << 0) | (1 << 2);
529
530 if (dssdev->phy.venc.invert_polarity == false)
531 l |= 1 << 3;
532
533 venc_write_reg(VENC_OUTPUT_CONTROL, l);
534
535 dispc_set_digit_size(dssdev->panel.timings.x_res,
536 dssdev->panel.timings.y_res/2);
537
538 regulator_enable(venc.vdda_dac_reg);
539
540 if (dssdev->platform_enable)
541 dssdev->platform_enable(dssdev);
542
543 dispc_enable_digit_out(1);
544}
545
546static void venc_power_off(struct omap_dss_device *dssdev)
547{
548 venc_write_reg(VENC_OUTPUT_CONTROL, 0);
549 dss_set_dac_pwrdn_bgz(0);
550
551 dispc_enable_digit_out(0);
552
553 if (dssdev->platform_disable)
554 dssdev->platform_disable(dssdev);
555
556 regulator_disable(venc.vdda_dac_reg);
557
558 venc_enable_clocks(0);
559}
560
561static int venc_enable_display(struct omap_dss_device *dssdev)
562{
563 int r = 0;
564
565 DSSDBG("venc_enable_display\n");
566
567 mutex_lock(&venc.venc_lock);
568
569 if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
570 r = -EINVAL;
571 goto err;
572 }
573
574 venc_power_on(dssdev);
575
576 venc.wss_data = 0;
577
578 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
579err:
580 mutex_unlock(&venc.venc_lock);
581
582 return r;
583}
584
585static void venc_disable_display(struct omap_dss_device *dssdev)
586{
587 DSSDBG("venc_disable_display\n");
588
589 mutex_lock(&venc.venc_lock);
590
591 if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
592 goto end;
593
594 if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
595 /* suspended is the same as disabled with venc */
596 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
597 goto end;
598 }
599
600 venc_power_off(dssdev);
601
602 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
603end:
604 mutex_unlock(&venc.venc_lock);
605}
606
607static int venc_display_suspend(struct omap_dss_device *dssdev)
608{
609 int r = 0;
610
611 DSSDBG("venc_display_suspend\n");
612
613 mutex_lock(&venc.venc_lock);
614
615 if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
616 r = -EINVAL;
617 goto err;
618 }
619
620 venc_power_off(dssdev);
621
622 dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
623err:
624 mutex_unlock(&venc.venc_lock);
625
626 return r;
627}
628
629static int venc_display_resume(struct omap_dss_device *dssdev)
630{
631 int r = 0;
632
633 DSSDBG("venc_display_resume\n");
634
635 mutex_lock(&venc.venc_lock);
636
637 if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
638 r = -EINVAL;
639 goto err;
640 }
641
642 venc_power_on(dssdev);
643
644 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
645err:
646 mutex_unlock(&venc.venc_lock);
647
648 return r;
649}
650
651static void venc_get_timings(struct omap_dss_device *dssdev,
652 struct omap_video_timings *timings)
653{
654 *timings = dssdev->panel.timings;
655}
656
657static void venc_set_timings(struct omap_dss_device *dssdev,
658 struct omap_video_timings *timings)
659{
660 DSSDBG("venc_set_timings\n");
661
662 /* Reset WSS data when the TV standard changes. */
663 if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings)))
664 venc.wss_data = 0;
665
666 dssdev->panel.timings = *timings;
667 if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
668 /* turn the venc off and on to get new timings to use */
669 venc_disable_display(dssdev);
670 venc_enable_display(dssdev);
671 }
672}
673
674static int venc_check_timings(struct omap_dss_device *dssdev,
675 struct omap_video_timings *timings)
676{
677 DSSDBG("venc_check_timings\n");
678
679 if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
680 return 0;
681
682 if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
683 return 0;
684
685 return -EINVAL;
686}
687
688static u32 venc_get_wss(struct omap_dss_device *dssdev)
689{
690 /* Invert due to VENC_L21_WC_CTL:INV=1 */
691 return (venc.wss_data >> 8) ^ 0xfffff;
692}
693
694static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
695{
696 const struct venc_config *config;
697
698 DSSDBG("venc_set_wss\n");
699
700 mutex_lock(&venc.venc_lock);
701
702 config = venc_timings_to_config(&dssdev->panel.timings);
703
704 /* Invert due to VENC_L21_WC_CTL:INV=1 */
705 venc.wss_data = (wss ^ 0xfffff) << 8;
706
707 venc_enable_clocks(1);
708
709 venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
710 venc.wss_data);
711
712 venc_enable_clocks(0);
713
714 mutex_unlock(&venc.venc_lock);
715
716 return 0;
717}
718
719static enum omap_dss_update_mode venc_display_get_update_mode(
720 struct omap_dss_device *dssdev)
721{
722 if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
723 return OMAP_DSS_UPDATE_AUTO;
724 else
725 return OMAP_DSS_UPDATE_DISABLED;
726}
727
728int venc_init_display(struct omap_dss_device *dssdev)
729{
730 DSSDBG("init_display\n");
731
732 dssdev->enable = venc_enable_display;
733 dssdev->disable = venc_disable_display;
734 dssdev->suspend = venc_display_suspend;
735 dssdev->resume = venc_display_resume;
736 dssdev->get_timings = venc_get_timings;
737 dssdev->set_timings = venc_set_timings;
738 dssdev->check_timings = venc_check_timings;
739 dssdev->get_wss = venc_get_wss;
740 dssdev->set_wss = venc_set_wss;
741 dssdev->get_update_mode = venc_display_get_update_mode;
742
743 return 0;
744}
745
746void venc_dump_regs(struct seq_file *s)
747{
748#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
749
750 venc_enable_clocks(1);
751
752 DUMPREG(VENC_F_CONTROL);
753 DUMPREG(VENC_VIDOUT_CTRL);
754 DUMPREG(VENC_SYNC_CTRL);
755 DUMPREG(VENC_LLEN);
756 DUMPREG(VENC_FLENS);
757 DUMPREG(VENC_HFLTR_CTRL);
758 DUMPREG(VENC_CC_CARR_WSS_CARR);
759 DUMPREG(VENC_C_PHASE);
760 DUMPREG(VENC_GAIN_U);
761 DUMPREG(VENC_GAIN_V);
762 DUMPREG(VENC_GAIN_Y);
763 DUMPREG(VENC_BLACK_LEVEL);
764 DUMPREG(VENC_BLANK_LEVEL);
765 DUMPREG(VENC_X_COLOR);
766 DUMPREG(VENC_M_CONTROL);
767 DUMPREG(VENC_BSTAMP_WSS_DATA);
768 DUMPREG(VENC_S_CARR);
769 DUMPREG(VENC_LINE21);
770 DUMPREG(VENC_LN_SEL);
771 DUMPREG(VENC_L21__WC_CTL);
772 DUMPREG(VENC_HTRIGGER_VTRIGGER);
773 DUMPREG(VENC_SAVID__EAVID);
774 DUMPREG(VENC_FLEN__FAL);
775 DUMPREG(VENC_LAL__PHASE_RESET);
776 DUMPREG(VENC_HS_INT_START_STOP_X);
777 DUMPREG(VENC_HS_EXT_START_STOP_X);
778 DUMPREG(VENC_VS_INT_START_X);
779 DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y);
780 DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X);
781 DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y);
782 DUMPREG(VENC_VS_EXT_STOP_Y);
783 DUMPREG(VENC_AVID_START_STOP_X);
784 DUMPREG(VENC_AVID_START_STOP_Y);
785 DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y);
786 DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X);
787 DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y);
788 DUMPREG(VENC_TVDETGP_INT_START_STOP_X);
789 DUMPREG(VENC_TVDETGP_INT_START_STOP_Y);
790 DUMPREG(VENC_GEN_CTRL);
791 DUMPREG(VENC_OUTPUT_CONTROL);
792 DUMPREG(VENC_OUTPUT_TEST);
793
794 venc_enable_clocks(0);
795
796#undef DUMPREG
797}
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-08 21:11:27 -0500