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17#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/ctype.h>
21#include <linux/delay.h>
22#include <linux/device.h>
23#include <linux/interrupt.h>
24#include <linux/platform_device.h>
25#include <linux/videodev2.h>
26#include <linux/slab.h>
27
28#include <mach/hardware.h>
29#include <mach/mux.h>
30#include <linux/platform_data/i2c-davinci.h>
31
32#include <linux/io.h>
33
34#include <media/davinci/vpbe_types.h>
35#include <media/davinci/vpbe_venc.h>
36#include <media/davinci/vpss.h>
37#include <media/v4l2-device.h>
38
39#include "vpbe_venc_regs.h"
40
41#define MODULE_NAME "davinci-vpbe-venc"
42
43static struct platform_device_id vpbe_venc_devtype[] = {
44 {
45 .name = DM644X_VPBE_VENC_SUBDEV_NAME,
46 .driver_data = VPBE_VERSION_1,
47 }, {
48 .name = DM365_VPBE_VENC_SUBDEV_NAME,
49 .driver_data = VPBE_VERSION_2,
50 }, {
51 .name = DM355_VPBE_VENC_SUBDEV_NAME,
52 .driver_data = VPBE_VERSION_3,
53 },
54 {
55
56 }
57};
58
59MODULE_DEVICE_TABLE(platform, vpbe_venc_devtype);
60
61static int debug = 2;
62module_param(debug, int, 0644);
63MODULE_PARM_DESC(debug, "Debug level 0-2");
64
65struct venc_state {
66 struct v4l2_subdev sd;
67 struct venc_callback *callback;
68 struct venc_platform_data *pdata;
69 struct device *pdev;
70 u32 output;
71 v4l2_std_id std;
72 spinlock_t lock;
73 void __iomem *venc_base;
74 void __iomem *vdaccfg_reg;
75 enum vpbe_version venc_type;
76};
77
78static inline struct venc_state *to_state(struct v4l2_subdev *sd)
79{
80 return container_of(sd, struct venc_state, sd);
81}
82
83static inline u32 venc_read(struct v4l2_subdev *sd, u32 offset)
84{
85 struct venc_state *venc = to_state(sd);
86
87 return readl(venc->venc_base + offset);
88}
89
90static inline u32 venc_write(struct v4l2_subdev *sd, u32 offset, u32 val)
91{
92 struct venc_state *venc = to_state(sd);
93
94 writel(val, (venc->venc_base + offset));
95
96 return val;
97}
98
99static inline u32 venc_modify(struct v4l2_subdev *sd, u32 offset,
100 u32 val, u32 mask)
101{
102 u32 new_val = (venc_read(sd, offset) & ~mask) | (val & mask);
103
104 venc_write(sd, offset, new_val);
105
106 return new_val;
107}
108
109static inline u32 vdaccfg_write(struct v4l2_subdev *sd, u32 val)
110{
111 struct venc_state *venc = to_state(sd);
112
113 writel(val, venc->vdaccfg_reg);
114
115 val = readl(venc->vdaccfg_reg);
116
117 return val;
118}
119
120#define VDAC_COMPONENT 0x543
121#define VDAC_S_VIDEO 0x210
122
123
124static int venc_set_dac(struct v4l2_subdev *sd, u32 out_index)
125{
126 switch (out_index) {
127 case 0:
128 v4l2_dbg(debug, 1, sd, "Setting output to Composite\n");
129 venc_write(sd, VENC_DACSEL, 0);
130 break;
131 case 1:
132 v4l2_dbg(debug, 1, sd, "Setting output to Component\n");
133 venc_write(sd, VENC_DACSEL, VDAC_COMPONENT);
134 break;
135 case 2:
136 v4l2_dbg(debug, 1, sd, "Setting output to S-video\n");
137 venc_write(sd, VENC_DACSEL, VDAC_S_VIDEO);
138 break;
139 default:
140 return -EINVAL;
141 }
142
143 return 0;
144}
145
146static void venc_enabledigitaloutput(struct v4l2_subdev *sd, int benable)
147{
148 struct venc_state *venc = to_state(sd);
149
150 v4l2_dbg(debug, 2, sd, "venc_enabledigitaloutput\n");
151
152 if (benable) {
153 venc_write(sd, VENC_VMOD, 0);
154 venc_write(sd, VENC_CVBS, 0);
155 venc_write(sd, VENC_LCDOUT, 0);
156 venc_write(sd, VENC_HSPLS, 0);
157 venc_write(sd, VENC_HSTART, 0);
158 venc_write(sd, VENC_HVALID, 0);
159 venc_write(sd, VENC_HINT, 0);
160 venc_write(sd, VENC_VSPLS, 0);
161 venc_write(sd, VENC_VSTART, 0);
162 venc_write(sd, VENC_VVALID, 0);
163 venc_write(sd, VENC_VINT, 0);
164 venc_write(sd, VENC_YCCCTL, 0);
165 venc_write(sd, VENC_DACSEL, 0);
166
167 } else {
168 venc_write(sd, VENC_VMOD, 0);
169
170 venc_write(sd, VENC_VIDCTL, 0x141);
171
172
173 venc_write(sd, VENC_SYNCCTL, 0);
174
175
176 venc_write(sd, VENC_DCLKCTL, 0);
177 venc_write(sd, VENC_DRGBX1, 0x0000057C);
178
179
180 venc_write(sd, VENC_LCDOUT, 0);
181 if (venc->venc_type != VPBE_VERSION_3)
182 venc_write(sd, VENC_CMPNT, 0x100);
183 venc_write(sd, VENC_HSPLS, 0);
184 venc_write(sd, VENC_HINT, 0);
185 venc_write(sd, VENC_HSTART, 0);
186 venc_write(sd, VENC_HVALID, 0);
187
188 venc_write(sd, VENC_VSPLS, 0);
189 venc_write(sd, VENC_VINT, 0);
190 venc_write(sd, VENC_VSTART, 0);
191 venc_write(sd, VENC_VVALID, 0);
192
193 venc_write(sd, VENC_HSDLY, 0);
194 venc_write(sd, VENC_VSDLY, 0);
195
196 venc_write(sd, VENC_YCCCTL, 0);
197 venc_write(sd, VENC_VSTARTA, 0);
198
199
200 venc_write(sd, VENC_OSDCLK0, 1);
201 venc_write(sd, VENC_OSDCLK1, 2);
202 }
203}
204
205static void
206venc_enable_vpss_clock(int venc_type,
207 enum vpbe_enc_timings_type type,
208 unsigned int pclock)
209{
210 if (venc_type == VPBE_VERSION_1)
211 return;
212
213 if (venc_type == VPBE_VERSION_2 && (type == VPBE_ENC_STD || (type ==
214 VPBE_ENC_DV_TIMINGS && pclock <= 27000000))) {
215 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
216 vpss_enable_clock(VPSS_VPBE_CLOCK, 1);
217 return;
218 }
219
220 if (venc_type == VPBE_VERSION_3 && type == VPBE_ENC_STD)
221 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 0);
222}
223
224#define VDAC_CONFIG_SD_V3 0x0E21A6B6
225#define VDAC_CONFIG_SD_V2 0x081141CF
226
227
228
229static int venc_set_ntsc(struct v4l2_subdev *sd)
230{
231 u32 val;
232 struct venc_state *venc = to_state(sd);
233 struct venc_platform_data *pdata = venc->pdata;
234
235 v4l2_dbg(debug, 2, sd, "venc_set_ntsc\n");
236
237
238 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
239 if (pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_525_60) < 0)
240 return -EINVAL;
241
242 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_525_60);
243 venc_enabledigitaloutput(sd, 0);
244
245 if (venc->venc_type == VPBE_VERSION_3) {
246 venc_write(sd, VENC_CLKCTL, 0x01);
247 venc_write(sd, VENC_VIDCTL, 0);
248 val = vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
249 } else if (venc->venc_type == VPBE_VERSION_2) {
250 venc_write(sd, VENC_CLKCTL, 0x01);
251 venc_write(sd, VENC_VIDCTL, 0);
252 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
253 } else {
254
255 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
256
257 venc_write(sd, VENC_YCCCTL, 0x1);
258 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAFRQ);
259 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAUPS);
260 }
261
262 venc_write(sd, VENC_VMOD, 0);
263 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
264 VENC_VMOD_VIE);
265 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
266 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_TVTYP_SHIFT),
267 VENC_VMOD_TVTYP);
268 venc_write(sd, VENC_DACTST, 0x0);
269 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
270
271 return 0;
272}
273
274
275
276
277static int venc_set_pal(struct v4l2_subdev *sd)
278{
279 struct venc_state *venc = to_state(sd);
280
281 v4l2_dbg(debug, 2, sd, "venc_set_pal\n");
282
283
284 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
285 if (venc->pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_625_50) < 0)
286 return -EINVAL;
287
288 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_625_50);
289 venc_enabledigitaloutput(sd, 0);
290
291 if (venc->venc_type == VPBE_VERSION_3) {
292 venc_write(sd, VENC_CLKCTL, 0x1);
293 venc_write(sd, VENC_VIDCTL, 0);
294 vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
295 } else if (venc->venc_type == VPBE_VERSION_2) {
296 venc_write(sd, VENC_CLKCTL, 0x1);
297 venc_write(sd, VENC_VIDCTL, 0);
298 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
299 } else {
300
301 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
302
303 venc_write(sd, VENC_YCCCTL, 0x1);
304 }
305
306 venc_modify(sd, VENC_SYNCCTL, 1 << VENC_SYNCCTL_OVD_SHIFT,
307 VENC_SYNCCTL_OVD);
308 venc_write(sd, VENC_VMOD, 0);
309 venc_modify(sd, VENC_VMOD,
310 (1 << VENC_VMOD_VIE_SHIFT),
311 VENC_VMOD_VIE);
312 venc_modify(sd, VENC_VMOD,
313 (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
314 venc_modify(sd, VENC_VMOD,
315 (1 << VENC_VMOD_TVTYP_SHIFT),
316 VENC_VMOD_TVTYP);
317 venc_write(sd, VENC_DACTST, 0x0);
318 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
319
320 return 0;
321}
322
323#define VDAC_CONFIG_HD_V2 0x081141EF
324
325
326
327
328
329static int venc_set_480p59_94(struct v4l2_subdev *sd)
330{
331 struct venc_state *venc = to_state(sd);
332 struct venc_platform_data *pdata = venc->pdata;
333
334 v4l2_dbg(debug, 2, sd, "venc_set_480p59_94\n");
335 if (venc->venc_type != VPBE_VERSION_1 &&
336 venc->venc_type != VPBE_VERSION_2)
337 return -EINVAL;
338
339
340 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
341 return -EINVAL;
342
343 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
344 venc_enabledigitaloutput(sd, 0);
345
346 if (venc->venc_type == VPBE_VERSION_2)
347 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
348 venc_write(sd, VENC_OSDCLK0, 0);
349 venc_write(sd, VENC_OSDCLK1, 1);
350
351 if (venc->venc_type == VPBE_VERSION_1) {
352 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
353 VENC_VDPRO_DAFRQ);
354 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
355 VENC_VDPRO_DAUPS);
356 }
357
358 venc_write(sd, VENC_VMOD, 0);
359 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
360 VENC_VMOD_VIE);
361 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
362 venc_modify(sd, VENC_VMOD, (HDTV_525P << VENC_VMOD_TVTYP_SHIFT),
363 VENC_VMOD_TVTYP);
364 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
365 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
366
367 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
368
369 return 0;
370}
371
372
373
374
375
376
377static int venc_set_576p50(struct v4l2_subdev *sd)
378{
379 struct venc_state *venc = to_state(sd);
380 struct venc_platform_data *pdata = venc->pdata;
381
382 v4l2_dbg(debug, 2, sd, "venc_set_576p50\n");
383
384 if (venc->venc_type != VPBE_VERSION_1 &&
385 venc->venc_type != VPBE_VERSION_2)
386 return -EINVAL;
387
388 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
389 return -EINVAL;
390
391 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
392 venc_enabledigitaloutput(sd, 0);
393
394 if (venc->venc_type == VPBE_VERSION_2)
395 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
396
397 venc_write(sd, VENC_OSDCLK0, 0);
398 venc_write(sd, VENC_OSDCLK1, 1);
399
400 if (venc->venc_type == VPBE_VERSION_1) {
401 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
402 VENC_VDPRO_DAFRQ);
403 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
404 VENC_VDPRO_DAUPS);
405 }
406
407 venc_write(sd, VENC_VMOD, 0);
408 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
409 VENC_VMOD_VIE);
410 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
411 venc_modify(sd, VENC_VMOD, (HDTV_625P << VENC_VMOD_TVTYP_SHIFT),
412 VENC_VMOD_TVTYP);
413
414 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
415 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
416 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
417
418 return 0;
419}
420
421
422
423
424static int venc_set_720p60_internal(struct v4l2_subdev *sd)
425{
426 struct venc_state *venc = to_state(sd);
427 struct venc_platform_data *pdata = venc->pdata;
428
429 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
430 return -EINVAL;
431
432 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
433 venc_enabledigitaloutput(sd, 0);
434
435 venc_write(sd, VENC_OSDCLK0, 0);
436 venc_write(sd, VENC_OSDCLK1, 1);
437
438 venc_write(sd, VENC_VMOD, 0);
439
440 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
441 VENC_VMOD_VIE);
442 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
443 venc_modify(sd, VENC_VMOD, (HDTV_720P << VENC_VMOD_TVTYP_SHIFT),
444 VENC_VMOD_TVTYP);
445 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
446 venc_write(sd, VENC_XHINTVL, 0);
447 return 0;
448}
449
450
451
452
453static int venc_set_1080i30_internal(struct v4l2_subdev *sd)
454{
455 struct venc_state *venc = to_state(sd);
456 struct venc_platform_data *pdata = venc->pdata;
457
458 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
459 return -EINVAL;
460
461 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
462 venc_enabledigitaloutput(sd, 0);
463
464 venc_write(sd, VENC_OSDCLK0, 0);
465 venc_write(sd, VENC_OSDCLK1, 1);
466
467
468 venc_write(sd, VENC_VMOD, 0);
469
470 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
471 VENC_VMOD_VIE);
472 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
473 venc_modify(sd, VENC_VMOD, (HDTV_1080I << VENC_VMOD_TVTYP_SHIFT),
474 VENC_VMOD_TVTYP);
475 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
476 venc_write(sd, VENC_XHINTVL, 0);
477 return 0;
478}
479
480static int venc_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
481{
482 v4l2_dbg(debug, 1, sd, "venc_s_std_output\n");
483
484 if (norm & V4L2_STD_525_60)
485 return venc_set_ntsc(sd);
486 else if (norm & V4L2_STD_625_50)
487 return venc_set_pal(sd);
488
489 return -EINVAL;
490}
491
492static int venc_s_dv_timings(struct v4l2_subdev *sd,
493 struct v4l2_dv_timings *dv_timings)
494{
495 struct venc_state *venc = to_state(sd);
496 u32 height = dv_timings->bt.height;
497 int ret;
498
499 v4l2_dbg(debug, 1, sd, "venc_s_dv_timings\n");
500
501 if (height == 576)
502 return venc_set_576p50(sd);
503 else if (height == 480)
504 return venc_set_480p59_94(sd);
505 else if ((height == 720) &&
506 (venc->venc_type == VPBE_VERSION_2)) {
507
508 ret = venc_set_720p60_internal(sd);
509
510 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
511 return ret;
512 } else if ((height == 1080) &&
513 (venc->venc_type == VPBE_VERSION_2)) {
514
515 ret = venc_set_1080i30_internal(sd);
516
517 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
518 return ret;
519 }
520 return -EINVAL;
521}
522
523static int venc_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
524 u32 config)
525{
526 struct venc_state *venc = to_state(sd);
527 int ret;
528
529 v4l2_dbg(debug, 1, sd, "venc_s_routing\n");
530
531 ret = venc_set_dac(sd, output);
532 if (!ret)
533 venc->output = output;
534
535 return ret;
536}
537
538static long venc_ioctl(struct v4l2_subdev *sd,
539 unsigned int cmd,
540 void *arg)
541{
542 u32 val;
543
544 switch (cmd) {
545 case VENC_GET_FLD:
546 val = venc_read(sd, VENC_VSTAT);
547 *((int *)arg) = ((val & VENC_VSTAT_FIDST) ==
548 VENC_VSTAT_FIDST);
549 break;
550 default:
551 v4l2_err(sd, "Wrong IOCTL cmd\n");
552 break;
553 }
554
555 return 0;
556}
557
558static const struct v4l2_subdev_core_ops venc_core_ops = {
559 .ioctl = venc_ioctl,
560};
561
562static const struct v4l2_subdev_video_ops venc_video_ops = {
563 .s_routing = venc_s_routing,
564 .s_std_output = venc_s_std_output,
565 .s_dv_timings = venc_s_dv_timings,
566};
567
568static const struct v4l2_subdev_ops venc_ops = {
569 .core = &venc_core_ops,
570 .video = &venc_video_ops,
571};
572
573static int venc_initialize(struct v4l2_subdev *sd)
574{
575 struct venc_state *venc = to_state(sd);
576 int ret;
577
578
579 venc->output = 0;
580 venc->std = V4L2_STD_525_60;
581
582 ret = venc_s_routing(sd, 0, venc->output, 0);
583 if (ret < 0) {
584 v4l2_err(sd, "Error setting output during init\n");
585 return -EINVAL;
586 }
587
588 ret = venc_s_std_output(sd, venc->std);
589 if (ret < 0) {
590 v4l2_err(sd, "Error setting std during init\n");
591 return -EINVAL;
592 }
593
594 return ret;
595}
596
597static int venc_device_get(struct device *dev, void *data)
598{
599 struct platform_device *pdev = to_platform_device(dev);
600 struct venc_state **venc = data;
601
602 if (strstr(pdev->name, "vpbe-venc") != NULL)
603 *venc = platform_get_drvdata(pdev);
604
605 return 0;
606}
607
608struct v4l2_subdev *venc_sub_dev_init(struct v4l2_device *v4l2_dev,
609 const char *venc_name)
610{
611 struct venc_state *venc;
612 int err;
613
614 err = bus_for_each_dev(&platform_bus_type, NULL, &venc,
615 venc_device_get);
616 if (venc == NULL)
617 return NULL;
618
619 v4l2_subdev_init(&venc->sd, &venc_ops);
620
621 strcpy(venc->sd.name, venc_name);
622 if (v4l2_device_register_subdev(v4l2_dev, &venc->sd) < 0) {
623 v4l2_err(v4l2_dev,
624 "vpbe unable to register venc sub device\n");
625 return NULL;
626 }
627 if (venc_initialize(&venc->sd)) {
628 v4l2_err(v4l2_dev,
629 "vpbe venc initialization failed\n");
630 return NULL;
631 }
632
633 return &venc->sd;
634}
635EXPORT_SYMBOL(venc_sub_dev_init);
636
637static int venc_probe(struct platform_device *pdev)
638{
639 const struct platform_device_id *pdev_id;
640 struct venc_state *venc;
641 struct resource *res;
642 int ret;
643
644 venc = kzalloc(sizeof(struct venc_state), GFP_KERNEL);
645 if (venc == NULL)
646 return -ENOMEM;
647
648 pdev_id = platform_get_device_id(pdev);
649 if (!pdev_id) {
650 ret = -EINVAL;
651 goto free_mem;
652 }
653 venc->venc_type = pdev_id->driver_data;
654 venc->pdev = &pdev->dev;
655 venc->pdata = pdev->dev.platform_data;
656 if (NULL == venc->pdata) {
657 dev_err(venc->pdev, "Unable to get platform data for"
658 " VENC sub device");
659 ret = -ENOENT;
660 goto free_mem;
661 }
662 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
663 if (!res) {
664 dev_err(venc->pdev,
665 "Unable to get VENC register address map\n");
666 ret = -ENODEV;
667 goto free_mem;
668 }
669
670 if (!request_mem_region(res->start, resource_size(res), "venc")) {
671 dev_err(venc->pdev, "Unable to reserve VENC MMIO region\n");
672 ret = -ENODEV;
673 goto free_mem;
674 }
675
676 venc->venc_base = ioremap_nocache(res->start, resource_size(res));
677 if (!venc->venc_base) {
678 dev_err(venc->pdev, "Unable to map VENC IO space\n");
679 ret = -ENODEV;
680 goto release_venc_mem_region;
681 }
682
683 if (venc->venc_type != VPBE_VERSION_1) {
684 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
685 if (!res) {
686 dev_err(venc->pdev,
687 "Unable to get VDAC_CONFIG address map\n");
688 ret = -ENODEV;
689 goto unmap_venc_io;
690 }
691
692 if (!request_mem_region(res->start,
693 resource_size(res), "venc")) {
694 dev_err(venc->pdev,
695 "Unable to reserve VDAC_CONFIG MMIO region\n");
696 ret = -ENODEV;
697 goto unmap_venc_io;
698 }
699
700 venc->vdaccfg_reg = ioremap_nocache(res->start,
701 resource_size(res));
702 if (!venc->vdaccfg_reg) {
703 dev_err(venc->pdev,
704 "Unable to map VDAC_CONFIG IO space\n");
705 ret = -ENODEV;
706 goto release_vdaccfg_mem_region;
707 }
708 }
709 spin_lock_init(&venc->lock);
710 platform_set_drvdata(pdev, venc);
711 dev_notice(venc->pdev, "VENC sub device probe success\n");
712 return 0;
713
714release_vdaccfg_mem_region:
715 release_mem_region(res->start, resource_size(res));
716unmap_venc_io:
717 iounmap(venc->venc_base);
718release_venc_mem_region:
719 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
720 release_mem_region(res->start, resource_size(res));
721free_mem:
722 kfree(venc);
723 return ret;
724}
725
726static int venc_remove(struct platform_device *pdev)
727{
728 struct venc_state *venc = platform_get_drvdata(pdev);
729 struct resource *res;
730
731 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
732 iounmap((void *)venc->venc_base);
733 release_mem_region(res->start, resource_size(res));
734 if (venc->venc_type != VPBE_VERSION_1) {
735 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
736 iounmap((void *)venc->vdaccfg_reg);
737 release_mem_region(res->start, resource_size(res));
738 }
739 kfree(venc);
740
741 return 0;
742}
743
744static struct platform_driver venc_driver = {
745 .probe = venc_probe,
746 .remove = venc_remove,
747 .driver = {
748 .name = MODULE_NAME,
749 .owner = THIS_MODULE,
750 },
751 .id_table = vpbe_venc_devtype
752};
753
754module_platform_driver(venc_driver);
755
756MODULE_LICENSE("GPL");
757MODULE_DESCRIPTION("VPBE VENC Driver");
758MODULE_AUTHOR("Texas Instruments");
759
