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Merge remote-tracking branch 'mmc-uh/next'
[deliverable/linux.git] / drivers / media / pci / cobalt / cobalt-v4l2.c
1 /*
2 * cobalt V4L2 API
3 *
4 * Derived from ivtv-ioctl.c and cx18-fileops.c
5 *
6 * Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
7 * All rights reserved.
8 *
9 * This program is free software; you may redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
15 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
17 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
18 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 #include <linux/dma-mapping.h>
24 #include <linux/delay.h>
25 #include <linux/math64.h>
26 #include <linux/pci.h>
27 #include <linux/v4l2-dv-timings.h>
28
29 #include <media/v4l2-ctrls.h>
30 #include <media/v4l2-event.h>
31 #include <media/v4l2-dv-timings.h>
32 #include <media/i2c/adv7604.h>
33 #include <media/i2c/adv7842.h>
34
35 #include "cobalt-alsa.h"
36 #include "cobalt-cpld.h"
37 #include "cobalt-driver.h"
38 #include "cobalt-v4l2.h"
39 #include "cobalt-irq.h"
40 #include "cobalt-omnitek.h"
41
42 static const struct v4l2_dv_timings cea1080p60 = V4L2_DV_BT_CEA_1920X1080P60;
43
44 /* vb2 DMA streaming ops */
45
46 static int cobalt_queue_setup(struct vb2_queue *q,
47 unsigned int *num_buffers, unsigned int *num_planes,
48 unsigned int sizes[], struct device *alloc_devs[])
49 {
50 struct cobalt_stream *s = q->drv_priv;
51 unsigned size = s->stride * s->height;
52
53 if (*num_buffers < 3)
54 *num_buffers = 3;
55 if (*num_buffers > NR_BUFS)
56 *num_buffers = NR_BUFS;
57 if (*num_planes)
58 return sizes[0] < size ? -EINVAL : 0;
59 *num_planes = 1;
60 sizes[0] = size;
61 return 0;
62 }
63
64 static int cobalt_buf_init(struct vb2_buffer *vb)
65 {
66 struct cobalt_stream *s = vb->vb2_queue->drv_priv;
67 struct cobalt *cobalt = s->cobalt;
68 const size_t max_pages_per_line =
69 (COBALT_MAX_WIDTH * COBALT_MAX_BPP) / PAGE_SIZE + 2;
70 const size_t bytes =
71 COBALT_MAX_HEIGHT * max_pages_per_line * 0x20;
72 const size_t audio_bytes = ((1920 * 4) / PAGE_SIZE + 1) * 0x20;
73 struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
74 struct sg_table *sg_desc = vb2_dma_sg_plane_desc(vb, 0);
75 unsigned size;
76 int ret;
77
78 size = s->stride * s->height;
79 if (vb2_plane_size(vb, 0) < size) {
80 cobalt_info("data will not fit into plane (%lu < %u)\n",
81 vb2_plane_size(vb, 0), size);
82 return -EINVAL;
83 }
84
85 if (desc->virt == NULL) {
86 desc->dev = &cobalt->pci_dev->dev;
87 descriptor_list_allocate(desc,
88 s->is_audio ? audio_bytes : bytes);
89 if (desc->virt == NULL)
90 return -ENOMEM;
91 }
92 ret = descriptor_list_create(cobalt, sg_desc->sgl,
93 !s->is_output, sg_desc->nents, size,
94 s->width * s->bpp, s->stride, desc);
95 if (ret)
96 descriptor_list_free(desc);
97 return ret;
98 }
99
100 static void cobalt_buf_cleanup(struct vb2_buffer *vb)
101 {
102 struct cobalt_stream *s = vb->vb2_queue->drv_priv;
103 struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
104
105 descriptor_list_free(desc);
106 }
107
108 static int cobalt_buf_prepare(struct vb2_buffer *vb)
109 {
110 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
111 struct cobalt_stream *s = vb->vb2_queue->drv_priv;
112
113 vb2_set_plane_payload(vb, 0, s->stride * s->height);
114 vbuf->field = V4L2_FIELD_NONE;
115 return 0;
116 }
117
118 static void chain_all_buffers(struct cobalt_stream *s)
119 {
120 struct sg_dma_desc_info *desc[NR_BUFS];
121 struct cobalt_buffer *cb;
122 struct list_head *p;
123 int i = 0;
124
125 list_for_each(p, &s->bufs) {
126 cb = list_entry(p, struct cobalt_buffer, list);
127 desc[i] = &s->dma_desc_info[cb->vb.vb2_buf.index];
128 if (i > 0)
129 descriptor_list_chain(desc[i-1], desc[i]);
130 i++;
131 }
132 }
133
134 static void cobalt_buf_queue(struct vb2_buffer *vb)
135 {
136 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
137 struct vb2_queue *q = vb->vb2_queue;
138 struct cobalt_stream *s = q->drv_priv;
139 struct cobalt_buffer *cb = to_cobalt_buffer(vbuf);
140 struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
141 unsigned long flags;
142
143 /* Prepare new buffer */
144 descriptor_list_loopback(desc);
145 descriptor_list_interrupt_disable(desc);
146
147 spin_lock_irqsave(&s->irqlock, flags);
148 list_add_tail(&cb->list, &s->bufs);
149 chain_all_buffers(s);
150 spin_unlock_irqrestore(&s->irqlock, flags);
151 }
152
153 static void cobalt_enable_output(struct cobalt_stream *s)
154 {
155 struct cobalt *cobalt = s->cobalt;
156 struct v4l2_bt_timings *bt = &s->timings.bt;
157 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
158 COBALT_TX_BASE(cobalt);
159 unsigned fmt = s->pixfmt != V4L2_PIX_FMT_BGR32 ?
160 M00514_CONTROL_BITMAP_FORMAT_16_BPP_MSK : 0;
161 struct v4l2_subdev_format sd_fmt = {
162 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
163 };
164 u64 clk = bt->pixelclock;
165
166 if (bt->flags & V4L2_DV_FL_REDUCED_FPS)
167 clk = div_u64(clk * 1000ULL, 1001);
168 if (!cobalt_cpld_set_freq(cobalt, clk)) {
169 cobalt_err("pixelclock out of range\n");
170 return;
171 }
172
173 sd_fmt.format.colorspace = s->colorspace;
174 sd_fmt.format.xfer_func = s->xfer_func;
175 sd_fmt.format.ycbcr_enc = s->ycbcr_enc;
176 sd_fmt.format.quantization = s->quantization;
177 sd_fmt.format.width = bt->width;
178 sd_fmt.format.height = bt->height;
179
180 /* Set up FDMA packer */
181 switch (s->pixfmt) {
182 case V4L2_PIX_FMT_YUYV:
183 sd_fmt.format.code = MEDIA_BUS_FMT_UYVY8_1X16;
184 break;
185 case V4L2_PIX_FMT_BGR32:
186 sd_fmt.format.code = MEDIA_BUS_FMT_RGB888_1X24;
187 break;
188 }
189 v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
190
191 iowrite32(0, &vo->control);
192 /* 1080p60 */
193 iowrite32(bt->hsync, &vo->sync_generator_h_sync_length);
194 iowrite32(bt->hbackporch, &vo->sync_generator_h_backporch_length);
195 iowrite32(bt->width, &vo->sync_generator_h_active_length);
196 iowrite32(bt->hfrontporch, &vo->sync_generator_h_frontporch_length);
197 iowrite32(bt->vsync, &vo->sync_generator_v_sync_length);
198 iowrite32(bt->vbackporch, &vo->sync_generator_v_backporch_length);
199 iowrite32(bt->height, &vo->sync_generator_v_active_length);
200 iowrite32(bt->vfrontporch, &vo->sync_generator_v_frontporch_length);
201 iowrite32(0x9900c1, &vo->error_color);
202
203 iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_LOAD_PARAM_MSK | fmt,
204 &vo->control);
205 iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK | fmt, &vo->control);
206 iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_ENABLE_MSK |
207 M00514_CONTROL_BITMAP_FLOW_CTRL_OUTPUT_ENABLE_MSK |
208 fmt, &vo->control);
209 }
210
211 static void cobalt_enable_input(struct cobalt_stream *s)
212 {
213 struct cobalt *cobalt = s->cobalt;
214 int ch = (int)s->video_channel;
215 struct m00235_fdma_packer_regmap __iomem *packer;
216 struct v4l2_subdev_format sd_fmt_yuyv = {
217 .pad = s->pad_source,
218 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
219 .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
220 };
221 struct v4l2_subdev_format sd_fmt_rgb = {
222 .pad = s->pad_source,
223 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
224 .format.code = MEDIA_BUS_FMT_RGB888_1X24,
225 };
226
227 cobalt_dbg(1, "video_channel %d (%s, %s)\n",
228 s->video_channel,
229 s->input == 0 ? "hdmi" : "generator",
230 "YUYV");
231
232 packer = COBALT_CVI_PACKER(cobalt, ch);
233
234 /* Set up FDMA packer */
235 switch (s->pixfmt) {
236 case V4L2_PIX_FMT_YUYV:
237 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
238 (1 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
239 &packer->control);
240 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
241 &sd_fmt_yuyv);
242 break;
243 case V4L2_PIX_FMT_RGB24:
244 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
245 (2 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
246 &packer->control);
247 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
248 &sd_fmt_rgb);
249 break;
250 case V4L2_PIX_FMT_BGR32:
251 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
252 M00235_CONTROL_BITMAP_ENDIAN_FORMAT_MSK |
253 (3 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
254 &packer->control);
255 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
256 &sd_fmt_rgb);
257 break;
258 }
259 }
260
261 static void cobalt_dma_start_streaming(struct cobalt_stream *s)
262 {
263 struct cobalt *cobalt = s->cobalt;
264 int rx = s->video_channel;
265 struct m00460_evcnt_regmap __iomem *evcnt =
266 COBALT_CVI_EVCNT(cobalt, rx);
267 struct cobalt_buffer *cb;
268 unsigned long flags;
269
270 spin_lock_irqsave(&s->irqlock, flags);
271 if (!s->is_output) {
272 iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
273 iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
274 } else {
275 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
276 COBALT_TX_BASE(cobalt);
277 u32 ctrl = ioread32(&vo->control);
278
279 ctrl &= ~(M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK |
280 M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK);
281 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK,
282 &vo->control);
283 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK,
284 &vo->control);
285 }
286 cb = list_first_entry(&s->bufs, struct cobalt_buffer, list);
287 omni_sg_dma_start(s, &s->dma_desc_info[cb->vb.vb2_buf.index]);
288 spin_unlock_irqrestore(&s->irqlock, flags);
289 }
290
291 static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
292 {
293 struct cobalt_stream *s = q->drv_priv;
294 struct cobalt *cobalt = s->cobalt;
295 struct m00233_video_measure_regmap __iomem *vmr;
296 struct m00473_freewheel_regmap __iomem *fw;
297 struct m00479_clk_loss_detector_regmap __iomem *clkloss;
298 int rx = s->video_channel;
299 struct m00389_cvi_regmap __iomem *cvi = COBALT_CVI(cobalt, rx);
300 struct m00460_evcnt_regmap __iomem *evcnt = COBALT_CVI_EVCNT(cobalt, rx);
301 struct v4l2_bt_timings *bt = &s->timings.bt;
302 u64 tot_size;
303 u32 clk_freq;
304
305 if (s->is_audio)
306 goto done;
307 if (s->is_output) {
308 s->unstable_frame = false;
309 cobalt_enable_output(s);
310 goto done;
311 }
312
313 cobalt_enable_input(s);
314
315 fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
316 vmr = COBALT_CVI_VMR(cobalt, rx);
317 clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
318
319 iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
320 iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
321 iowrite32(bt->width, &cvi->frame_width);
322 iowrite32(bt->height, &cvi->frame_height);
323 tot_size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
324 iowrite32(div_u64((u64)V4L2_DV_BT_FRAME_WIDTH(bt) * COBALT_CLK * 4,
325 bt->pixelclock), &vmr->hsync_timeout_val);
326 iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
327 clk_freq = ioread32(&fw->clk_freq);
328 iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
329 /* The lower bound for the clock frequency is 0.5% lower as is
330 * allowed by the spec */
331 iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
332 &clkloss->test_clk_cnt_val);
333 /* will be enabled after the first frame has been received */
334 iowrite32(bt->width * bt->height, &fw->active_length);
335 iowrite32(div_u64((u64)clk_freq * tot_size, bt->pixelclock),
336 &fw->total_length);
337 iowrite32(M00233_IRQ_TRIGGERS_BITMAP_VACTIVE_AREA_MSK |
338 M00233_IRQ_TRIGGERS_BITMAP_HACTIVE_AREA_MSK,
339 &vmr->irq_triggers);
340 iowrite32(0, &cvi->control);
341 iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
342
343 iowrite32(0xff, &fw->output_color);
344 iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
345 iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
346 M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK, &fw->ctrl);
347 s->unstable_frame = true;
348 s->enable_freewheel = false;
349 s->enable_cvi = false;
350 s->skip_first_frames = 0;
351
352 done:
353 s->sequence = 0;
354 cobalt_dma_start_streaming(s);
355 return 0;
356 }
357
358 static void cobalt_dma_stop_streaming(struct cobalt_stream *s)
359 {
360 struct cobalt *cobalt = s->cobalt;
361 struct sg_dma_desc_info *desc;
362 struct cobalt_buffer *cb;
363 struct list_head *p;
364 unsigned long flags;
365 int timeout_msec = 100;
366 int rx = s->video_channel;
367 struct m00460_evcnt_regmap __iomem *evcnt =
368 COBALT_CVI_EVCNT(cobalt, rx);
369
370 if (!s->is_output) {
371 iowrite32(0, &evcnt->control);
372 } else if (!s->is_audio) {
373 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
374 COBALT_TX_BASE(cobalt);
375
376 iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK, &vo->control);
377 iowrite32(0, &vo->control);
378 }
379
380 /* Try to stop the DMA engine gracefully */
381 spin_lock_irqsave(&s->irqlock, flags);
382 list_for_each(p, &s->bufs) {
383 cb = list_entry(p, struct cobalt_buffer, list);
384 desc = &s->dma_desc_info[cb->vb.vb2_buf.index];
385 /* Stop DMA after this descriptor chain */
386 descriptor_list_end_of_chain(desc);
387 }
388 spin_unlock_irqrestore(&s->irqlock, flags);
389
390 /* Wait 100 milisecond for DMA to finish, abort on timeout. */
391 if (!wait_event_timeout(s->q.done_wq, is_dma_done(s),
392 msecs_to_jiffies(timeout_msec))) {
393 omni_sg_dma_abort_channel(s);
394 pr_warn("aborted\n");
395 }
396 cobalt_write_bar0(cobalt, DMA_INTERRUPT_STATUS_REG,
397 1 << s->dma_channel);
398 }
399
400 static void cobalt_stop_streaming(struct vb2_queue *q)
401 {
402 struct cobalt_stream *s = q->drv_priv;
403 struct cobalt *cobalt = s->cobalt;
404 int rx = s->video_channel;
405 struct m00233_video_measure_regmap __iomem *vmr;
406 struct m00473_freewheel_regmap __iomem *fw;
407 struct m00479_clk_loss_detector_regmap __iomem *clkloss;
408 struct cobalt_buffer *cb;
409 struct list_head *p, *safe;
410 unsigned long flags;
411
412 cobalt_dma_stop_streaming(s);
413
414 /* Return all buffers to user space */
415 spin_lock_irqsave(&s->irqlock, flags);
416 list_for_each_safe(p, safe, &s->bufs) {
417 cb = list_entry(p, struct cobalt_buffer, list);
418 list_del(&cb->list);
419 vb2_buffer_done(&cb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
420 }
421 spin_unlock_irqrestore(&s->irqlock, flags);
422
423 if (s->is_audio || s->is_output)
424 return;
425
426 fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
427 vmr = COBALT_CVI_VMR(cobalt, rx);
428 clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
429 iowrite32(0, &vmr->control);
430 iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
431 iowrite32(0, &fw->ctrl);
432 iowrite32(0, &clkloss->ctrl);
433 }
434
435 static const struct vb2_ops cobalt_qops = {
436 .queue_setup = cobalt_queue_setup,
437 .buf_init = cobalt_buf_init,
438 .buf_cleanup = cobalt_buf_cleanup,
439 .buf_prepare = cobalt_buf_prepare,
440 .buf_queue = cobalt_buf_queue,
441 .start_streaming = cobalt_start_streaming,
442 .stop_streaming = cobalt_stop_streaming,
443 .wait_prepare = vb2_ops_wait_prepare,
444 .wait_finish = vb2_ops_wait_finish,
445 };
446
447 /* V4L2 ioctls */
448
449 #ifdef CONFIG_VIDEO_ADV_DEBUG
450 static int cobalt_cobaltc(struct cobalt *cobalt, unsigned int cmd, void *arg)
451 {
452 struct v4l2_dbg_register *regs = arg;
453 void __iomem *adrs = cobalt->bar1 + regs->reg;
454
455 cobalt_info("cobalt_cobaltc: adrs = %p\n", adrs);
456
457 if (!capable(CAP_SYS_ADMIN))
458 return -EPERM;
459
460 regs->size = 4;
461 if (cmd == VIDIOC_DBG_S_REGISTER)
462 iowrite32(regs->val, adrs);
463 else
464 regs->val = ioread32(adrs);
465 return 0;
466 }
467
468 static int cobalt_g_register(struct file *file, void *priv_fh,
469 struct v4l2_dbg_register *reg)
470 {
471 struct cobalt_stream *s = video_drvdata(file);
472 struct cobalt *cobalt = s->cobalt;
473
474 return cobalt_cobaltc(cobalt, VIDIOC_DBG_G_REGISTER, reg);
475 }
476
477 static int cobalt_s_register(struct file *file, void *priv_fh,
478 const struct v4l2_dbg_register *reg)
479 {
480 struct cobalt_stream *s = video_drvdata(file);
481 struct cobalt *cobalt = s->cobalt;
482
483 return cobalt_cobaltc(cobalt, VIDIOC_DBG_S_REGISTER,
484 (struct v4l2_dbg_register *)reg);
485 }
486 #endif
487
488 static int cobalt_querycap(struct file *file, void *priv_fh,
489 struct v4l2_capability *vcap)
490 {
491 struct cobalt_stream *s = video_drvdata(file);
492 struct cobalt *cobalt = s->cobalt;
493
494 strlcpy(vcap->driver, "cobalt", sizeof(vcap->driver));
495 strlcpy(vcap->card, "cobalt", sizeof(vcap->card));
496 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
497 "PCIe:%s", pci_name(cobalt->pci_dev));
498 vcap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
499 if (s->is_output)
500 vcap->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
501 else
502 vcap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
503 vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS |
504 V4L2_CAP_VIDEO_CAPTURE;
505 if (cobalt->have_hsma_tx)
506 vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT;
507 return 0;
508 }
509
510 static void cobalt_video_input_status_show(struct cobalt_stream *s)
511 {
512 struct m00389_cvi_regmap __iomem *cvi;
513 struct m00233_video_measure_regmap __iomem *vmr;
514 struct m00473_freewheel_regmap __iomem *fw;
515 struct m00479_clk_loss_detector_regmap __iomem *clkloss;
516 struct m00235_fdma_packer_regmap __iomem *packer;
517 int rx = s->video_channel;
518 struct cobalt *cobalt = s->cobalt;
519 u32 cvi_ctrl, cvi_stat;
520 u32 vmr_ctrl, vmr_stat;
521
522 cvi = COBALT_CVI(cobalt, rx);
523 vmr = COBALT_CVI_VMR(cobalt, rx);
524 fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
525 clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
526 packer = COBALT_CVI_PACKER(cobalt, rx);
527 cvi_ctrl = ioread32(&cvi->control);
528 cvi_stat = ioread32(&cvi->status);
529 vmr_ctrl = ioread32(&vmr->control);
530 vmr_stat = ioread32(&vmr->control);
531 cobalt_info("rx%d: cvi resolution: %dx%d\n", rx,
532 ioread32(&cvi->frame_width), ioread32(&cvi->frame_height));
533 cobalt_info("rx%d: cvi control: %s%s%s\n", rx,
534 (cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ?
535 "enable " : "disable ",
536 (cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
537 "HSync- " : "HSync+ ",
538 (cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
539 "VSync- " : "VSync+ ");
540 cobalt_info("rx%d: cvi status: %s%s\n", rx,
541 (cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ?
542 "lock " : "no-lock ",
543 (cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ?
544 "error " : "no-error ");
545
546 cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx,
547 (vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
548 "HSync- " : "HSync+ ",
549 (vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
550 "VSync- " : "VSync+ ",
551 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ?
552 "enabled " : "disabled ",
553 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ?
554 "irq-enabled " : "irq-disabled ",
555 (vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ?
556 "update-on-hsync " : "",
557 (vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ?
558 "hsync-timeout " : "",
559 (vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ?
560 "init-done" : "");
561 cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx,
562 ioread32(&vmr->irq_status) & 0xff,
563 ioread32(&vmr->irq_triggers) & 0xff);
564 cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time));
565 cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch));
566 cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area));
567 cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch));
568 cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time));
569 cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch));
570 cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area));
571 cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch));
572 cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx,
573 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ?
574 "enabled " : "disabled ",
575 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ?
576 "forced " : "",
577 (ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ?
578 "freewheeling " : "video-passthrough ");
579 iowrite32(0xff, &vmr->irq_status);
580 cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx,
581 (ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ?
582 "enabled " : "disabled ",
583 (ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ?
584 "clock-missing " : "found-clock ");
585 cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control));
586 }
587
588 static int cobalt_log_status(struct file *file, void *priv_fh)
589 {
590 struct cobalt_stream *s = video_drvdata(file);
591 struct cobalt *cobalt = s->cobalt;
592 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
593 COBALT_TX_BASE(cobalt);
594 u8 stat;
595
596 cobalt_info("%s", cobalt->hdl_info);
597 cobalt_info("sysctrl: %08x, sysstat: %08x\n",
598 cobalt_g_sysctrl(cobalt),
599 cobalt_g_sysstat(cobalt));
600 cobalt_info("dma channel: %d, video channel: %d\n",
601 s->dma_channel, s->video_channel);
602 cobalt_pcie_status_show(cobalt);
603 cobalt_cpld_status(cobalt);
604 cobalt_irq_log_status(cobalt);
605 v4l2_subdev_call(s->sd, core, log_status);
606 if (!s->is_output) {
607 cobalt_video_input_status_show(s);
608 return 0;
609 }
610
611 stat = ioread32(&vo->rd_status);
612
613 cobalt_info("tx: status: %s%s\n",
614 (stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ?
615 "no_data " : "",
616 (stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ?
617 "ready_buffer_full " : "");
618 cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count));
619 return 0;
620 }
621
622 static int cobalt_enum_dv_timings(struct file *file, void *priv_fh,
623 struct v4l2_enum_dv_timings *timings)
624 {
625 struct cobalt_stream *s = video_drvdata(file);
626
627 if (s->input == 1) {
628 if (timings->index)
629 return -EINVAL;
630 memset(timings->reserved, 0, sizeof(timings->reserved));
631 timings->timings = cea1080p60;
632 return 0;
633 }
634 timings->pad = 0;
635 return v4l2_subdev_call(s->sd,
636 pad, enum_dv_timings, timings);
637 }
638
639 static int cobalt_s_dv_timings(struct file *file, void *priv_fh,
640 struct v4l2_dv_timings *timings)
641 {
642 struct cobalt_stream *s = video_drvdata(file);
643 int err;
644
645 if (s->input == 1) {
646 *timings = cea1080p60;
647 return 0;
648 }
649
650 if (v4l2_match_dv_timings(timings, &s->timings, 0, true))
651 return 0;
652
653 if (vb2_is_busy(&s->q))
654 return -EBUSY;
655
656 err = v4l2_subdev_call(s->sd,
657 video, s_dv_timings, timings);
658 if (!err) {
659 s->timings = *timings;
660 s->width = timings->bt.width;
661 s->height = timings->bt.height;
662 s->stride = timings->bt.width * s->bpp;
663 }
664 return err;
665 }
666
667 static int cobalt_g_dv_timings(struct file *file, void *priv_fh,
668 struct v4l2_dv_timings *timings)
669 {
670 struct cobalt_stream *s = video_drvdata(file);
671
672 if (s->input == 1) {
673 *timings = cea1080p60;
674 return 0;
675 }
676 return v4l2_subdev_call(s->sd,
677 video, g_dv_timings, timings);
678 }
679
680 static int cobalt_query_dv_timings(struct file *file, void *priv_fh,
681 struct v4l2_dv_timings *timings)
682 {
683 struct cobalt_stream *s = video_drvdata(file);
684
685 if (s->input == 1) {
686 *timings = cea1080p60;
687 return 0;
688 }
689 return v4l2_subdev_call(s->sd,
690 video, query_dv_timings, timings);
691 }
692
693 static int cobalt_dv_timings_cap(struct file *file, void *priv_fh,
694 struct v4l2_dv_timings_cap *cap)
695 {
696 struct cobalt_stream *s = video_drvdata(file);
697
698 cap->pad = 0;
699 return v4l2_subdev_call(s->sd,
700 pad, dv_timings_cap, cap);
701 }
702
703 static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh,
704 struct v4l2_fmtdesc *f)
705 {
706 switch (f->index) {
707 case 0:
708 strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
709 f->pixelformat = V4L2_PIX_FMT_YUYV;
710 break;
711 case 1:
712 strlcpy(f->description, "RGB24", sizeof(f->description));
713 f->pixelformat = V4L2_PIX_FMT_RGB24;
714 break;
715 case 2:
716 strlcpy(f->description, "RGB32", sizeof(f->description));
717 f->pixelformat = V4L2_PIX_FMT_BGR32;
718 break;
719 default:
720 return -EINVAL;
721 }
722
723 return 0;
724 }
725
726 static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh,
727 struct v4l2_format *f)
728 {
729 struct cobalt_stream *s = video_drvdata(file);
730 struct v4l2_pix_format *pix = &f->fmt.pix;
731 struct v4l2_subdev_format sd_fmt;
732
733 pix->width = s->width;
734 pix->height = s->height;
735 pix->bytesperline = s->stride;
736 pix->field = V4L2_FIELD_NONE;
737
738 if (s->input == 1) {
739 pix->colorspace = V4L2_COLORSPACE_SRGB;
740 } else {
741 sd_fmt.pad = s->pad_source;
742 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
743 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
744 v4l2_fill_pix_format(pix, &sd_fmt.format);
745 }
746
747 pix->pixelformat = s->pixfmt;
748 pix->sizeimage = pix->bytesperline * pix->height;
749
750 return 0;
751 }
752
753 static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh,
754 struct v4l2_format *f)
755 {
756 struct cobalt_stream *s = video_drvdata(file);
757 struct v4l2_pix_format *pix = &f->fmt.pix;
758 struct v4l2_subdev_format sd_fmt;
759
760 /* Check for min (QCIF) and max (Full HD) size */
761 if ((pix->width < 176) || (pix->height < 144)) {
762 pix->width = 176;
763 pix->height = 144;
764 }
765
766 if ((pix->width > 1920) || (pix->height > 1080)) {
767 pix->width = 1920;
768 pix->height = 1080;
769 }
770
771 /* Make width multiple of 4 */
772 pix->width &= ~0x3;
773
774 /* Make height multiple of 2 */
775 pix->height &= ~0x1;
776
777 if (s->input == 1) {
778 /* Generator => fixed format only */
779 pix->width = 1920;
780 pix->height = 1080;
781 pix->colorspace = V4L2_COLORSPACE_SRGB;
782 } else {
783 sd_fmt.pad = s->pad_source;
784 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
785 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
786 v4l2_fill_pix_format(pix, &sd_fmt.format);
787 }
788
789 switch (pix->pixelformat) {
790 case V4L2_PIX_FMT_YUYV:
791 default:
792 pix->bytesperline = max(pix->bytesperline & ~0x3,
793 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
794 pix->pixelformat = V4L2_PIX_FMT_YUYV;
795 break;
796 case V4L2_PIX_FMT_RGB24:
797 pix->bytesperline = max(pix->bytesperline & ~0x3,
798 pix->width * COBALT_BYTES_PER_PIXEL_RGB24);
799 break;
800 case V4L2_PIX_FMT_BGR32:
801 pix->bytesperline = max(pix->bytesperline & ~0x3,
802 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
803 break;
804 }
805
806 pix->sizeimage = pix->bytesperline * pix->height;
807 pix->field = V4L2_FIELD_NONE;
808 pix->priv = 0;
809
810 return 0;
811 }
812
813 static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh,
814 struct v4l2_format *f)
815 {
816 struct cobalt_stream *s = video_drvdata(file);
817 struct v4l2_pix_format *pix = &f->fmt.pix;
818
819 if (vb2_is_busy(&s->q))
820 return -EBUSY;
821
822 if (cobalt_try_fmt_vid_cap(file, priv_fh, f))
823 return -EINVAL;
824
825 s->width = pix->width;
826 s->height = pix->height;
827 s->stride = pix->bytesperline;
828 switch (pix->pixelformat) {
829 case V4L2_PIX_FMT_YUYV:
830 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
831 break;
832 case V4L2_PIX_FMT_RGB24:
833 s->bpp = COBALT_BYTES_PER_PIXEL_RGB24;
834 break;
835 case V4L2_PIX_FMT_BGR32:
836 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
837 break;
838 default:
839 return -EINVAL;
840 }
841 s->pixfmt = pix->pixelformat;
842 cobalt_enable_input(s);
843
844 return 0;
845 }
846
847 static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh,
848 struct v4l2_format *f)
849 {
850 struct v4l2_pix_format *pix = &f->fmt.pix;
851
852 /* Check for min (QCIF) and max (Full HD) size */
853 if ((pix->width < 176) || (pix->height < 144)) {
854 pix->width = 176;
855 pix->height = 144;
856 }
857
858 if ((pix->width > 1920) || (pix->height > 1080)) {
859 pix->width = 1920;
860 pix->height = 1080;
861 }
862
863 /* Make width multiple of 4 */
864 pix->width &= ~0x3;
865
866 /* Make height multiple of 2 */
867 pix->height &= ~0x1;
868
869 switch (pix->pixelformat) {
870 case V4L2_PIX_FMT_YUYV:
871 default:
872 pix->bytesperline = max(pix->bytesperline & ~0x3,
873 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
874 pix->pixelformat = V4L2_PIX_FMT_YUYV;
875 break;
876 case V4L2_PIX_FMT_BGR32:
877 pix->bytesperline = max(pix->bytesperline & ~0x3,
878 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
879 break;
880 }
881
882 pix->sizeimage = pix->bytesperline * pix->height;
883 pix->field = V4L2_FIELD_NONE;
884
885 return 0;
886 }
887
888 static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh,
889 struct v4l2_format *f)
890 {
891 struct cobalt_stream *s = video_drvdata(file);
892 struct v4l2_pix_format *pix = &f->fmt.pix;
893
894 pix->width = s->width;
895 pix->height = s->height;
896 pix->bytesperline = s->stride;
897 pix->field = V4L2_FIELD_NONE;
898 pix->pixelformat = s->pixfmt;
899 pix->colorspace = s->colorspace;
900 pix->xfer_func = s->xfer_func;
901 pix->ycbcr_enc = s->ycbcr_enc;
902 pix->quantization = s->quantization;
903 pix->sizeimage = pix->bytesperline * pix->height;
904
905 return 0;
906 }
907
908 static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh,
909 struct v4l2_fmtdesc *f)
910 {
911 switch (f->index) {
912 case 0:
913 strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
914 f->pixelformat = V4L2_PIX_FMT_YUYV;
915 break;
916 case 1:
917 strlcpy(f->description, "RGB32", sizeof(f->description));
918 f->pixelformat = V4L2_PIX_FMT_BGR32;
919 break;
920 default:
921 return -EINVAL;
922 }
923
924 return 0;
925 }
926
927 static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh,
928 struct v4l2_format *f)
929 {
930 struct cobalt_stream *s = video_drvdata(file);
931 struct v4l2_pix_format *pix = &f->fmt.pix;
932 struct v4l2_subdev_format sd_fmt = { 0 };
933 u32 code;
934
935 if (cobalt_try_fmt_vid_out(file, priv_fh, f))
936 return -EINVAL;
937
938 if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt ||
939 pix->width != s->width || pix->height != s->height ||
940 pix->bytesperline != s->stride))
941 return -EBUSY;
942
943 switch (pix->pixelformat) {
944 case V4L2_PIX_FMT_YUYV:
945 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
946 code = MEDIA_BUS_FMT_UYVY8_1X16;
947 break;
948 case V4L2_PIX_FMT_BGR32:
949 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
950 code = MEDIA_BUS_FMT_RGB888_1X24;
951 break;
952 default:
953 return -EINVAL;
954 }
955 s->width = pix->width;
956 s->height = pix->height;
957 s->stride = pix->bytesperline;
958 s->pixfmt = pix->pixelformat;
959 s->colorspace = pix->colorspace;
960 s->xfer_func = pix->xfer_func;
961 s->ycbcr_enc = pix->ycbcr_enc;
962 s->quantization = pix->quantization;
963 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
964 v4l2_fill_mbus_format(&sd_fmt.format, pix, code);
965 v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
966 return 0;
967 }
968
969 static int cobalt_enum_input(struct file *file, void *priv_fh,
970 struct v4l2_input *inp)
971 {
972 struct cobalt_stream *s = video_drvdata(file);
973
974 if (inp->index > 1)
975 return -EINVAL;
976 if (inp->index == 0)
977 snprintf(inp->name, sizeof(inp->name),
978 "HDMI-%d", s->video_channel);
979 else
980 snprintf(inp->name, sizeof(inp->name),
981 "Generator-%d", s->video_channel);
982 inp->type = V4L2_INPUT_TYPE_CAMERA;
983 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
984 if (inp->index == 1)
985 return 0;
986 return v4l2_subdev_call(s->sd,
987 video, g_input_status, &inp->status);
988 }
989
990 static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i)
991 {
992 struct cobalt_stream *s = video_drvdata(file);
993
994 *i = s->input;
995 return 0;
996 }
997
998 static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i)
999 {
1000 struct cobalt_stream *s = video_drvdata(file);
1001
1002 if (i >= 2)
1003 return -EINVAL;
1004 if (vb2_is_busy(&s->q))
1005 return -EBUSY;
1006 s->input = i;
1007
1008 cobalt_enable_input(s);
1009
1010 if (s->input == 1) /* Test Pattern Generator */
1011 return 0;
1012
1013 return v4l2_subdev_call(s->sd, video, s_routing,
1014 ADV76XX_PAD_HDMI_PORT_A, 0, 0);
1015 }
1016
1017 static int cobalt_enum_output(struct file *file, void *priv_fh,
1018 struct v4l2_output *out)
1019 {
1020 if (out->index)
1021 return -EINVAL;
1022 snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index);
1023 out->type = V4L2_OUTPUT_TYPE_ANALOG;
1024 out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
1025 return 0;
1026 }
1027
1028 static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i)
1029 {
1030 *i = 0;
1031 return 0;
1032 }
1033
1034 static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i)
1035 {
1036 return i ? -EINVAL : 0;
1037 }
1038
1039 static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1040 {
1041 struct cobalt_stream *s = video_drvdata(file);
1042 u32 pad = edid->pad;
1043 int ret;
1044
1045 if (edid->pad >= (s->is_output ? 1 : 2))
1046 return -EINVAL;
1047 edid->pad = 0;
1048 ret = v4l2_subdev_call(s->sd, pad, get_edid, edid);
1049 edid->pad = pad;
1050 return ret;
1051 }
1052
1053 static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1054 {
1055 struct cobalt_stream *s = video_drvdata(file);
1056 u32 pad = edid->pad;
1057 int ret;
1058
1059 if (edid->pad >= 2)
1060 return -EINVAL;
1061 edid->pad = 0;
1062 ret = v4l2_subdev_call(s->sd, pad, set_edid, edid);
1063 edid->pad = pad;
1064 return ret;
1065 }
1066
1067 static int cobalt_subscribe_event(struct v4l2_fh *fh,
1068 const struct v4l2_event_subscription *sub)
1069 {
1070 switch (sub->type) {
1071 case V4L2_EVENT_SOURCE_CHANGE:
1072 return v4l2_event_subscribe(fh, sub, 4, NULL);
1073 }
1074 return v4l2_ctrl_subscribe_event(fh, sub);
1075 }
1076
1077 static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1078 {
1079 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1080 return -EINVAL;
1081 a->parm.capture.timeperframe.numerator = 1;
1082 a->parm.capture.timeperframe.denominator = 60;
1083 a->parm.capture.readbuffers = 3;
1084 return 0;
1085 }
1086
1087 static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
1088 .vidioc_querycap = cobalt_querycap,
1089 .vidioc_g_parm = cobalt_g_parm,
1090 .vidioc_log_status = cobalt_log_status,
1091 .vidioc_streamon = vb2_ioctl_streamon,
1092 .vidioc_streamoff = vb2_ioctl_streamoff,
1093 .vidioc_enum_input = cobalt_enum_input,
1094 .vidioc_g_input = cobalt_g_input,
1095 .vidioc_s_input = cobalt_s_input,
1096 .vidioc_enum_fmt_vid_cap = cobalt_enum_fmt_vid_cap,
1097 .vidioc_g_fmt_vid_cap = cobalt_g_fmt_vid_cap,
1098 .vidioc_s_fmt_vid_cap = cobalt_s_fmt_vid_cap,
1099 .vidioc_try_fmt_vid_cap = cobalt_try_fmt_vid_cap,
1100 .vidioc_enum_output = cobalt_enum_output,
1101 .vidioc_g_output = cobalt_g_output,
1102 .vidioc_s_output = cobalt_s_output,
1103 .vidioc_enum_fmt_vid_out = cobalt_enum_fmt_vid_out,
1104 .vidioc_g_fmt_vid_out = cobalt_g_fmt_vid_out,
1105 .vidioc_s_fmt_vid_out = cobalt_s_fmt_vid_out,
1106 .vidioc_try_fmt_vid_out = cobalt_try_fmt_vid_out,
1107 .vidioc_s_dv_timings = cobalt_s_dv_timings,
1108 .vidioc_g_dv_timings = cobalt_g_dv_timings,
1109 .vidioc_query_dv_timings = cobalt_query_dv_timings,
1110 .vidioc_enum_dv_timings = cobalt_enum_dv_timings,
1111 .vidioc_dv_timings_cap = cobalt_dv_timings_cap,
1112 .vidioc_g_edid = cobalt_g_edid,
1113 .vidioc_s_edid = cobalt_s_edid,
1114 .vidioc_subscribe_event = cobalt_subscribe_event,
1115 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1116 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1117 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1118 .vidioc_querybuf = vb2_ioctl_querybuf,
1119 .vidioc_qbuf = vb2_ioctl_qbuf,
1120 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1121 .vidioc_expbuf = vb2_ioctl_expbuf,
1122 #ifdef CONFIG_VIDEO_ADV_DEBUG
1123 .vidioc_g_register = cobalt_g_register,
1124 .vidioc_s_register = cobalt_s_register,
1125 #endif
1126 };
1127
1128 static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = {
1129 #ifdef CONFIG_VIDEO_ADV_DEBUG
1130 .vidioc_g_register = cobalt_g_register,
1131 .vidioc_s_register = cobalt_s_register,
1132 #endif
1133 };
1134
1135 /* Register device nodes */
1136
1137 static const struct v4l2_file_operations cobalt_fops = {
1138 .owner = THIS_MODULE,
1139 .open = v4l2_fh_open,
1140 .unlocked_ioctl = video_ioctl2,
1141 .release = vb2_fop_release,
1142 .poll = vb2_fop_poll,
1143 .mmap = vb2_fop_mmap,
1144 .read = vb2_fop_read,
1145 };
1146
1147 static const struct v4l2_file_operations cobalt_out_fops = {
1148 .owner = THIS_MODULE,
1149 .open = v4l2_fh_open,
1150 .unlocked_ioctl = video_ioctl2,
1151 .release = vb2_fop_release,
1152 .poll = vb2_fop_poll,
1153 .mmap = vb2_fop_mmap,
1154 .write = vb2_fop_write,
1155 };
1156
1157 static const struct v4l2_file_operations cobalt_empty_fops = {
1158 .owner = THIS_MODULE,
1159 .open = v4l2_fh_open,
1160 .unlocked_ioctl = video_ioctl2,
1161 .release = v4l2_fh_release,
1162 };
1163
1164 static int cobalt_node_register(struct cobalt *cobalt, int node)
1165 {
1166 static const struct v4l2_dv_timings dv1080p60 =
1167 V4L2_DV_BT_CEA_1920X1080P60;
1168 struct cobalt_stream *s = cobalt->streams + node;
1169 struct video_device *vdev = &s->vdev;
1170 struct vb2_queue *q = &s->q;
1171 int ret;
1172
1173 mutex_init(&s->lock);
1174 spin_lock_init(&s->irqlock);
1175
1176 snprintf(vdev->name, sizeof(vdev->name),
1177 "%s-%d", cobalt->v4l2_dev.name, node);
1178 s->width = 1920;
1179 /* Audio frames are just 4 lines of 1920 bytes */
1180 s->height = s->is_audio ? 4 : 1080;
1181
1182 if (s->is_audio) {
1183 s->bpp = 1;
1184 s->pixfmt = V4L2_PIX_FMT_GREY;
1185 } else if (s->is_output) {
1186 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
1187 s->pixfmt = V4L2_PIX_FMT_BGR32;
1188 } else {
1189 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
1190 s->pixfmt = V4L2_PIX_FMT_YUYV;
1191 }
1192 s->colorspace = V4L2_COLORSPACE_SRGB;
1193 s->stride = s->width * s->bpp;
1194
1195 if (!s->is_audio) {
1196 if (s->is_dummy)
1197 cobalt_warn("Setting up dummy video node %d\n", node);
1198 vdev->v4l2_dev = &cobalt->v4l2_dev;
1199 if (s->is_dummy)
1200 vdev->fops = &cobalt_empty_fops;
1201 else
1202 vdev->fops = s->is_output ? &cobalt_out_fops :
1203 &cobalt_fops;
1204 vdev->release = video_device_release_empty;
1205 vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX;
1206 vdev->lock = &s->lock;
1207 if (s->sd)
1208 vdev->ctrl_handler = s->sd->ctrl_handler;
1209 s->timings = dv1080p60;
1210 v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings);
1211 if (!s->is_output && s->sd)
1212 cobalt_enable_input(s);
1213 vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops :
1214 &cobalt_ioctl_ops;
1215 }
1216
1217 INIT_LIST_HEAD(&s->bufs);
1218 q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
1219 V4L2_BUF_TYPE_VIDEO_CAPTURE;
1220 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1221 q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ;
1222 q->drv_priv = s;
1223 q->buf_struct_size = sizeof(struct cobalt_buffer);
1224 q->ops = &cobalt_qops;
1225 q->mem_ops = &vb2_dma_sg_memops;
1226 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1227 q->min_buffers_needed = 2;
1228 q->lock = &s->lock;
1229 q->dev = &cobalt->pci_dev->dev;
1230 vdev->queue = q;
1231
1232 video_set_drvdata(vdev, s);
1233 ret = vb2_queue_init(q);
1234 if (!s->is_audio && ret == 0)
1235 ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
1236 else if (!s->is_dummy)
1237 ret = cobalt_alsa_init(s);
1238
1239 if (ret < 0) {
1240 if (!s->is_audio)
1241 cobalt_err("couldn't register v4l2 device node %d\n",
1242 node);
1243 return ret;
1244 }
1245 cobalt_info("registered node %d\n", node);
1246 return 0;
1247 }
1248
1249 /* Initialize v4l2 variables and register v4l2 devices */
1250 int cobalt_nodes_register(struct cobalt *cobalt)
1251 {
1252 int node, ret;
1253
1254 /* Setup V4L2 Devices */
1255 for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1256 ret = cobalt_node_register(cobalt, node);
1257 if (ret)
1258 return ret;
1259 }
1260 return 0;
1261 }
1262
1263 /* Unregister v4l2 devices */
1264 void cobalt_nodes_unregister(struct cobalt *cobalt)
1265 {
1266 int node;
1267
1268 /* Teardown all streams */
1269 for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1270 struct cobalt_stream *s = cobalt->streams + node;
1271 struct video_device *vdev = &s->vdev;
1272
1273 if (!s->is_audio)
1274 video_unregister_device(vdev);
1275 else if (!s->is_dummy)
1276 cobalt_alsa_exit(s);
1277 }
1278 }
Linux kernel - Deliverables
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