1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Driver for the Conexant CX23885 PCIe bridge
4  *
5  *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
6  */
7 
8 #include "cx23885.h"
9 #include "cx23885-video.h"
10 
11 #include <linux/init.h>
12 #include <linux/list.h>
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/kmod.h>
16 #include <linux/kernel.h>
17 #include <linux/slab.h>
18 #include <linux/interrupt.h>
19 #include <linux/delay.h>
20 #include <linux/kthread.h>
21 #include <asm/div64.h>
22 
23 #include <media/v4l2-common.h>
24 #include <media/v4l2-ioctl.h>
25 #include <media/v4l2-event.h>
26 #include "cx23885-ioctl.h"
27 #include "xc2028.h"
28 
29 #include <media/drv-intf/cx25840.h>
30 
31 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
32 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
33 MODULE_LICENSE("GPL");
34 
35 /* ------------------------------------------------------------------ */
36 
37 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
38 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
39 
40 module_param_array(video_nr, int, NULL, 0444);
41 module_param_array(vbi_nr,   int, NULL, 0444);
42 
43 MODULE_PARM_DESC(video_nr, "video device numbers");
44 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
45 
46 static unsigned int video_debug;
47 module_param(video_debug, int, 0644);
48 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
49 
50 static unsigned int irq_debug;
51 module_param(irq_debug, int, 0644);
52 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
53 
54 static unsigned int vid_limit = 16;
55 module_param(vid_limit, int, 0644);
56 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
57 
58 #define dprintk(level, fmt, arg...)\
59 	do { if (video_debug >= level)\
60 		printk(KERN_DEBUG pr_fmt("%s: video:" fmt), \
61 			__func__, ##arg); \
62 	} while (0)
63 
64 /* ------------------------------------------------------------------- */
65 /* static data                                                         */
66 
67 #define FORMAT_FLAGS_PACKED       0x01
68 static struct cx23885_fmt formats[] = {
69 	{
70 		.fourcc   = V4L2_PIX_FMT_YUYV,
71 		.depth    = 16,
72 		.flags    = FORMAT_FLAGS_PACKED,
73 	}
74 };
75 
format_by_fourcc(unsigned int fourcc)76 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
77 {
78 	unsigned int i;
79 
80 	for (i = 0; i < ARRAY_SIZE(formats); i++)
81 		if (formats[i].fourcc == fourcc)
82 			return formats+i;
83 	return NULL;
84 }
85 
86 /* ------------------------------------------------------------------- */
87 
cx23885_video_wakeup(struct cx23885_dev * dev,struct cx23885_dmaqueue * q,u32 count)88 void cx23885_video_wakeup(struct cx23885_dev *dev,
89 	struct cx23885_dmaqueue *q, u32 count)
90 {
91 	struct cx23885_buffer *buf;
92 
93 	if (list_empty(&q->active))
94 		return;
95 	buf = list_entry(q->active.next,
96 			struct cx23885_buffer, queue);
97 
98 	buf->vb.sequence = q->count++;
99 	buf->vb.vb2_buf.timestamp = ktime_get_ns();
100 	dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf,
101 			buf->vb.vb2_buf.index, count, q->count);
102 	list_del(&buf->queue);
103 	vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
104 }
105 
cx23885_set_tvnorm(struct cx23885_dev * dev,v4l2_std_id norm)106 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
107 {
108 	struct v4l2_subdev_format format = {
109 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
110 		.format.code = MEDIA_BUS_FMT_FIXED,
111 	};
112 
113 	dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
114 		__func__,
115 		(unsigned int)norm,
116 		v4l2_norm_to_name(norm));
117 
118 	if (dev->tvnorm == norm)
119 		return 0;
120 
121 	if (dev->tvnorm != norm) {
122 		if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
123 		    vb2_is_busy(&dev->vb2_mpegq))
124 			return -EBUSY;
125 	}
126 
127 	dev->tvnorm = norm;
128 	dev->width = 720;
129 	dev->height = norm_maxh(norm);
130 	dev->field = V4L2_FIELD_INTERLACED;
131 
132 	call_all(dev, video, s_std, norm);
133 
134 	format.format.width = dev->width;
135 	format.format.height = dev->height;
136 	format.format.field = dev->field;
137 	call_all(dev, pad, set_fmt, NULL, &format);
138 
139 	return 0;
140 }
141 
cx23885_vdev_init(struct cx23885_dev * dev,struct pci_dev * pci,struct video_device * template,char * type)142 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
143 				    struct pci_dev *pci,
144 				    struct video_device *template,
145 				    char *type)
146 {
147 	struct video_device *vfd;
148 	dprintk(1, "%s()\n", __func__);
149 
150 	vfd = video_device_alloc();
151 	if (NULL == vfd)
152 		return NULL;
153 	*vfd = *template;
154 	vfd->v4l2_dev = &dev->v4l2_dev;
155 	vfd->release = video_device_release;
156 	vfd->lock = &dev->lock;
157 	snprintf(vfd->name, sizeof(vfd->name), "%s (%s)",
158 		 cx23885_boards[dev->board].name, type);
159 	video_set_drvdata(vfd, dev);
160 	return vfd;
161 }
162 
cx23885_flatiron_write(struct cx23885_dev * dev,u8 reg,u8 data)163 int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data)
164 {
165 	/* 8 bit registers, 8 bit values */
166 	u8 buf[] = { reg, data };
167 
168 	struct i2c_msg msg = { .addr = 0x98 >> 1,
169 		.flags = 0, .buf = buf, .len = 2 };
170 
171 	return i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg, 1);
172 }
173 
cx23885_flatiron_read(struct cx23885_dev * dev,u8 reg)174 u8 cx23885_flatiron_read(struct cx23885_dev *dev, u8 reg)
175 {
176 	/* 8 bit registers, 8 bit values */
177 	int ret;
178 	u8 b0[] = { reg };
179 	u8 b1[] = { 0 };
180 
181 	struct i2c_msg msg[] = {
182 		{ .addr = 0x98 >> 1, .flags = 0, .buf = b0, .len = 1 },
183 		{ .addr = 0x98 >> 1, .flags = I2C_M_RD, .buf = b1, .len = 1 }
184 	};
185 
186 	ret = i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg[0], 2);
187 	if (ret != 2)
188 		pr_err("%s() error\n", __func__);
189 
190 	return b1[0];
191 }
192 
cx23885_flatiron_dump(struct cx23885_dev * dev)193 static void cx23885_flatiron_dump(struct cx23885_dev *dev)
194 {
195 	int i;
196 	dprintk(1, "Flatiron dump\n");
197 	for (i = 0; i < 0x24; i++) {
198 		dprintk(1, "FI[%02x] = %02x\n", i,
199 			cx23885_flatiron_read(dev, i));
200 	}
201 }
202 
cx23885_flatiron_mux(struct cx23885_dev * dev,int input)203 static int cx23885_flatiron_mux(struct cx23885_dev *dev, int input)
204 {
205 	u8 val;
206 	dprintk(1, "%s(input = %d)\n", __func__, input);
207 
208 	if (input == 1)
209 		val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) & ~FLD_CH_SEL;
210 	else if (input == 2)
211 		val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) | FLD_CH_SEL;
212 	else
213 		return -EINVAL;
214 
215 	val |= 0x20; /* Enable clock to delta-sigma and dec filter */
216 
217 	cx23885_flatiron_write(dev, CH_PWR_CTRL1, val);
218 
219 	/* Wake up */
220 	cx23885_flatiron_write(dev, CH_PWR_CTRL2, 0);
221 
222 	if (video_debug)
223 		cx23885_flatiron_dump(dev);
224 
225 	return 0;
226 }
227 
cx23885_video_mux(struct cx23885_dev * dev,unsigned int input)228 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
229 {
230 	dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
231 		__func__,
232 		input, INPUT(input)->vmux,
233 		INPUT(input)->gpio0, INPUT(input)->gpio1,
234 		INPUT(input)->gpio2, INPUT(input)->gpio3);
235 	dev->input = input;
236 
237 	if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
238 		dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2 ||
239 		dev->board == CX23885_BOARD_MYGICA_X8507) {
240 		/* Select Analog TV */
241 		if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
242 			cx23885_gpio_clear(dev, GPIO_0);
243 	}
244 
245 	/* Tell the internal A/V decoder */
246 	v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
247 			INPUT(input)->vmux, 0, 0);
248 
249 	if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) ||
250 		(dev->board == CX23885_BOARD_MPX885) ||
251 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) ||
252 		(dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE) ||
253 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
254 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
255 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4) ||
256 		(dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC) ||
257 		(dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_DVB) ||
258 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
259 		(dev->board == CX23885_BOARD_HAUPPAUGE_HVR5525) ||
260 		(dev->board == CX23885_BOARD_MYGICA_X8507) ||
261 		(dev->board == CX23885_BOARD_AVERMEDIA_HC81R) ||
262 		(dev->board == CX23885_BOARD_VIEWCAST_260E) ||
263 		(dev->board == CX23885_BOARD_VIEWCAST_460E) ||
264 		(dev->board == CX23885_BOARD_AVERMEDIA_CE310B)) {
265 		/* Configure audio routing */
266 		v4l2_subdev_call(dev->sd_cx25840, audio, s_routing,
267 			INPUT(input)->amux, 0, 0);
268 
269 		if (INPUT(input)->amux == CX25840_AUDIO7)
270 			cx23885_flatiron_mux(dev, 1);
271 		else if (INPUT(input)->amux == CX25840_AUDIO6)
272 			cx23885_flatiron_mux(dev, 2);
273 	}
274 
275 	return 0;
276 }
277 
cx23885_audio_mux(struct cx23885_dev * dev,unsigned int input)278 static int cx23885_audio_mux(struct cx23885_dev *dev, unsigned int input)
279 {
280 	dprintk(1, "%s(input=%d)\n", __func__, input);
281 
282 	/* The baseband video core of the cx23885 has two audio inputs.
283 	 * LR1 and LR2. In almost every single case so far only HVR1xxx
284 	 * cards we've only ever supported LR1. Time to support LR2,
285 	 * which is available via the optional white breakout header on
286 	 * the board.
287 	 * We'll use a could of existing enums in the card struct to allow
288 	 * devs to specify which baseband input they need, or just default
289 	 * to what we've always used.
290 	 */
291 	if (INPUT(input)->amux == CX25840_AUDIO7)
292 		cx23885_flatiron_mux(dev, 1);
293 	else if (INPUT(input)->amux == CX25840_AUDIO6)
294 		cx23885_flatiron_mux(dev, 2);
295 	else {
296 		/* Not specifically defined, assume the default. */
297 		cx23885_flatiron_mux(dev, 1);
298 	}
299 
300 	return 0;
301 }
302 
303 /* ------------------------------------------------------------------ */
cx23885_start_video_dma(struct cx23885_dev * dev,struct cx23885_dmaqueue * q,struct cx23885_buffer * buf)304 static int cx23885_start_video_dma(struct cx23885_dev *dev,
305 			   struct cx23885_dmaqueue *q,
306 			   struct cx23885_buffer *buf)
307 {
308 	dprintk(1, "%s()\n", __func__);
309 
310 	/* Stop the dma/fifo before we tamper with it's risc programs */
311 	cx_clear(VID_A_DMA_CTL, 0x11);
312 
313 	/* setup fifo + format */
314 	cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
315 				buf->bpl, buf->risc.dma);
316 
317 	/* reset counter */
318 	cx_write(VID_A_GPCNT_CTL, 3);
319 	q->count = 0;
320 
321 	/* enable irq */
322 	cx23885_irq_add_enable(dev, 0x01);
323 	cx_set(VID_A_INT_MSK, 0x000011);
324 
325 	/* start dma */
326 	cx_set(DEV_CNTRL2, (1<<5));
327 	cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
328 
329 	return 0;
330 }
331 
queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])332 static int queue_setup(struct vb2_queue *q,
333 			   unsigned int *num_buffers, unsigned int *num_planes,
334 			   unsigned int sizes[], struct device *alloc_devs[])
335 {
336 	struct cx23885_dev *dev = q->drv_priv;
337 
338 	*num_planes = 1;
339 	sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
340 	return 0;
341 }
342 
buffer_prepare(struct vb2_buffer * vb)343 static int buffer_prepare(struct vb2_buffer *vb)
344 {
345 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
346 	struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
347 	struct cx23885_buffer *buf =
348 		container_of(vbuf, struct cx23885_buffer, vb);
349 	u32 line0_offset, line1_offset;
350 	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
351 	int field_tff;
352 
353 	buf->bpl = (dev->width * dev->fmt->depth) >> 3;
354 
355 	if (vb2_plane_size(vb, 0) < dev->height * buf->bpl)
356 		return -EINVAL;
357 	vb2_set_plane_payload(vb, 0, dev->height * buf->bpl);
358 
359 	switch (dev->field) {
360 	case V4L2_FIELD_TOP:
361 		cx23885_risc_buffer(dev->pci, &buf->risc,
362 				sgt->sgl, 0, UNSET,
363 				buf->bpl, 0, dev->height);
364 		break;
365 	case V4L2_FIELD_BOTTOM:
366 		cx23885_risc_buffer(dev->pci, &buf->risc,
367 				sgt->sgl, UNSET, 0,
368 				buf->bpl, 0, dev->height);
369 		break;
370 	case V4L2_FIELD_INTERLACED:
371 		if (dev->tvnorm & V4L2_STD_525_60)
372 			/* NTSC or  */
373 			field_tff = 1;
374 		else
375 			field_tff = 0;
376 
377 		if (cx23885_boards[dev->board].force_bff)
378 			/* PAL / SECAM OR 888 in NTSC MODE */
379 			field_tff = 0;
380 
381 		if (field_tff) {
382 			/* cx25840 transmits NTSC bottom field first */
383 			dprintk(1, "%s() Creating TFF/NTSC risc\n",
384 					__func__);
385 			line0_offset = buf->bpl;
386 			line1_offset = 0;
387 		} else {
388 			/* All other formats are top field first */
389 			dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
390 					__func__);
391 			line0_offset = 0;
392 			line1_offset = buf->bpl;
393 		}
394 		cx23885_risc_buffer(dev->pci, &buf->risc,
395 				sgt->sgl, line0_offset,
396 				line1_offset,
397 				buf->bpl, buf->bpl,
398 				dev->height >> 1);
399 		break;
400 	case V4L2_FIELD_SEQ_TB:
401 		cx23885_risc_buffer(dev->pci, &buf->risc,
402 				sgt->sgl,
403 				0, buf->bpl * (dev->height >> 1),
404 				buf->bpl, 0,
405 				dev->height >> 1);
406 		break;
407 	case V4L2_FIELD_SEQ_BT:
408 		cx23885_risc_buffer(dev->pci, &buf->risc,
409 				sgt->sgl,
410 				buf->bpl * (dev->height >> 1), 0,
411 				buf->bpl, 0,
412 				dev->height >> 1);
413 		break;
414 	default:
415 		BUG();
416 	}
417 	dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp 0x%08x - dma=0x%08lx\n",
418 		buf, buf->vb.vb2_buf.index,
419 		dev->width, dev->height, dev->fmt->depth, dev->fmt->fourcc,
420 		(unsigned long)buf->risc.dma);
421 	return 0;
422 }
423 
buffer_finish(struct vb2_buffer * vb)424 static void buffer_finish(struct vb2_buffer *vb)
425 {
426 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
427 	struct cx23885_buffer *buf = container_of(vbuf,
428 		struct cx23885_buffer, vb);
429 
430 	cx23885_free_buffer(vb->vb2_queue->drv_priv, buf);
431 }
432 
433 /*
434  * The risc program for each buffer works as follows: it starts with a simple
435  * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
436  * buffer follows and at the end we have a JUMP back to the start + 12 (skipping
437  * the initial JUMP).
438  *
439  * This is the risc program of the first buffer to be queued if the active list
440  * is empty and it just keeps DMAing this buffer without generating any
441  * interrupts.
442  *
443  * If a new buffer is added then the initial JUMP in the code for that buffer
444  * will generate an interrupt which signals that the previous buffer has been
445  * DMAed successfully and that it can be returned to userspace.
446  *
447  * It also sets the final jump of the previous buffer to the start of the new
448  * buffer, thus chaining the new buffer into the DMA chain. This is a single
449  * atomic u32 write, so there is no race condition.
450  *
451  * The end-result of all this that you only get an interrupt when a buffer
452  * is ready, so the control flow is very easy.
453  */
buffer_queue(struct vb2_buffer * vb)454 static void buffer_queue(struct vb2_buffer *vb)
455 {
456 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
457 	struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
458 	struct cx23885_buffer   *buf = container_of(vbuf,
459 		struct cx23885_buffer, vb);
460 	struct cx23885_buffer   *prev;
461 	struct cx23885_dmaqueue *q    = &dev->vidq;
462 	unsigned long flags;
463 
464 	/* add jump to start */
465 	buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
466 	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
467 	buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
468 	buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
469 
470 	spin_lock_irqsave(&dev->slock, flags);
471 	if (list_empty(&q->active)) {
472 		list_add_tail(&buf->queue, &q->active);
473 		dprintk(2, "[%p/%d] buffer_queue - first active\n",
474 			buf, buf->vb.vb2_buf.index);
475 	} else {
476 		buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
477 		prev = list_entry(q->active.prev, struct cx23885_buffer,
478 			queue);
479 		list_add_tail(&buf->queue, &q->active);
480 		prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
481 		dprintk(2, "[%p/%d] buffer_queue - append to active\n",
482 				buf, buf->vb.vb2_buf.index);
483 	}
484 	spin_unlock_irqrestore(&dev->slock, flags);
485 }
486 
cx23885_start_streaming(struct vb2_queue * q,unsigned int count)487 static int cx23885_start_streaming(struct vb2_queue *q, unsigned int count)
488 {
489 	struct cx23885_dev *dev = q->drv_priv;
490 	struct cx23885_dmaqueue *dmaq = &dev->vidq;
491 	struct cx23885_buffer *buf = list_entry(dmaq->active.next,
492 			struct cx23885_buffer, queue);
493 
494 	cx23885_start_video_dma(dev, dmaq, buf);
495 	return 0;
496 }
497 
cx23885_stop_streaming(struct vb2_queue * q)498 static void cx23885_stop_streaming(struct vb2_queue *q)
499 {
500 	struct cx23885_dev *dev = q->drv_priv;
501 	struct cx23885_dmaqueue *dmaq = &dev->vidq;
502 	unsigned long flags;
503 
504 	cx_clear(VID_A_DMA_CTL, 0x11);
505 	spin_lock_irqsave(&dev->slock, flags);
506 	while (!list_empty(&dmaq->active)) {
507 		struct cx23885_buffer *buf = list_entry(dmaq->active.next,
508 			struct cx23885_buffer, queue);
509 
510 		list_del(&buf->queue);
511 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
512 	}
513 	spin_unlock_irqrestore(&dev->slock, flags);
514 }
515 
516 static const struct vb2_ops cx23885_video_qops = {
517 	.queue_setup    = queue_setup,
518 	.buf_prepare  = buffer_prepare,
519 	.buf_finish = buffer_finish,
520 	.buf_queue    = buffer_queue,
521 	.wait_prepare = vb2_ops_wait_prepare,
522 	.wait_finish = vb2_ops_wait_finish,
523 	.start_streaming = cx23885_start_streaming,
524 	.stop_streaming = cx23885_stop_streaming,
525 };
526 
527 /* ------------------------------------------------------------------ */
528 /* VIDEO IOCTLS                                                       */
529 
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)530 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
531 	struct v4l2_format *f)
532 {
533 	struct cx23885_dev *dev = video_drvdata(file);
534 
535 	f->fmt.pix.width        = dev->width;
536 	f->fmt.pix.height       = dev->height;
537 	f->fmt.pix.field        = dev->field;
538 	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
539 	f->fmt.pix.bytesperline =
540 		(f->fmt.pix.width * dev->fmt->depth) >> 3;
541 	f->fmt.pix.sizeimage =
542 		f->fmt.pix.height * f->fmt.pix.bytesperline;
543 	f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
544 
545 	return 0;
546 }
547 
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)548 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
549 	struct v4l2_format *f)
550 {
551 	struct cx23885_dev *dev = video_drvdata(file);
552 	struct cx23885_fmt *fmt;
553 	enum v4l2_field   field;
554 	unsigned int      maxw, maxh;
555 
556 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
557 	if (NULL == fmt)
558 		return -EINVAL;
559 
560 	field = f->fmt.pix.field;
561 	maxw  = 720;
562 	maxh  = norm_maxh(dev->tvnorm);
563 
564 	if (V4L2_FIELD_ANY == field) {
565 		field = (f->fmt.pix.height > maxh/2)
566 			? V4L2_FIELD_INTERLACED
567 			: V4L2_FIELD_BOTTOM;
568 	}
569 
570 	switch (field) {
571 	case V4L2_FIELD_TOP:
572 	case V4L2_FIELD_BOTTOM:
573 		maxh = maxh / 2;
574 		break;
575 	case V4L2_FIELD_INTERLACED:
576 	case V4L2_FIELD_SEQ_TB:
577 	case V4L2_FIELD_SEQ_BT:
578 		break;
579 	default:
580 		field = V4L2_FIELD_INTERLACED;
581 		break;
582 	}
583 
584 	f->fmt.pix.field = field;
585 	v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
586 			      &f->fmt.pix.height, 32, maxh, 0, 0);
587 	f->fmt.pix.bytesperline =
588 		(f->fmt.pix.width * fmt->depth) >> 3;
589 	f->fmt.pix.sizeimage =
590 		f->fmt.pix.height * f->fmt.pix.bytesperline;
591 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
592 
593 	return 0;
594 }
595 
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)596 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
597 	struct v4l2_format *f)
598 {
599 	struct cx23885_dev *dev = video_drvdata(file);
600 	struct v4l2_subdev_format format = {
601 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
602 	};
603 	int err;
604 
605 	dprintk(2, "%s()\n", __func__);
606 	err = vidioc_try_fmt_vid_cap(file, priv, f);
607 
608 	if (0 != err)
609 		return err;
610 
611 	if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
612 	    vb2_is_busy(&dev->vb2_mpegq))
613 		return -EBUSY;
614 
615 	dev->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
616 	dev->width      = f->fmt.pix.width;
617 	dev->height     = f->fmt.pix.height;
618 	dev->field	= f->fmt.pix.field;
619 	dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
620 		dev->width, dev->height, dev->field);
621 	v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
622 	call_all(dev, pad, set_fmt, NULL, &format);
623 	v4l2_fill_pix_format(&f->fmt.pix, &format.format);
624 	/* set_fmt overwrites f->fmt.pix.field, restore it */
625 	f->fmt.pix.field = dev->field;
626 	return 0;
627 }
628 
vidioc_querycap(struct file * file,void * priv,struct v4l2_capability * cap)629 static int vidioc_querycap(struct file *file, void  *priv,
630 	struct v4l2_capability *cap)
631 {
632 	struct cx23885_dev *dev = video_drvdata(file);
633 
634 	strscpy(cap->driver, "cx23885", sizeof(cap->driver));
635 	strscpy(cap->card, cx23885_boards[dev->board].name,
636 		sizeof(cap->card));
637 	sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
638 	cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
639 			    V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE |
640 			    V4L2_CAP_VIDEO_CAPTURE |
641 			    V4L2_CAP_DEVICE_CAPS;
642 	switch (dev->board) { /* i2c device tuners */
643 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
644 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
645 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
646 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
647 		cap->capabilities |= V4L2_CAP_TUNER;
648 		break;
649 	default:
650 		if (dev->tuner_type != TUNER_ABSENT)
651 			cap->capabilities |= V4L2_CAP_TUNER;
652 		break;
653 	}
654 	return 0;
655 }
656 
vidioc_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)657 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
658 	struct v4l2_fmtdesc *f)
659 {
660 	if (unlikely(f->index >= ARRAY_SIZE(formats)))
661 		return -EINVAL;
662 
663 	f->pixelformat = formats[f->index].fourcc;
664 
665 	return 0;
666 }
667 
vidioc_g_pixelaspect(struct file * file,void * priv,int type,struct v4l2_fract * f)668 static int vidioc_g_pixelaspect(struct file *file, void *priv,
669 				int type, struct v4l2_fract *f)
670 {
671 	struct cx23885_dev *dev = video_drvdata(file);
672 	bool is_50hz = dev->tvnorm & V4L2_STD_625_50;
673 
674 	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
675 		return -EINVAL;
676 
677 	f->numerator = is_50hz ? 54 : 11;
678 	f->denominator = is_50hz ? 59 : 10;
679 
680 	return 0;
681 }
682 
vidioc_g_selection(struct file * file,void * fh,struct v4l2_selection * sel)683 static int vidioc_g_selection(struct file *file, void *fh,
684 			      struct v4l2_selection *sel)
685 {
686 	struct cx23885_dev *dev = video_drvdata(file);
687 
688 	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
689 		return -EINVAL;
690 
691 	switch (sel->target) {
692 	case V4L2_SEL_TGT_CROP_BOUNDS:
693 	case V4L2_SEL_TGT_CROP_DEFAULT:
694 		sel->r.top = 0;
695 		sel->r.left = 0;
696 		sel->r.width = 720;
697 		sel->r.height = norm_maxh(dev->tvnorm);
698 		break;
699 	default:
700 		return -EINVAL;
701 	}
702 	return 0;
703 }
704 
vidioc_g_std(struct file * file,void * priv,v4l2_std_id * id)705 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
706 {
707 	struct cx23885_dev *dev = video_drvdata(file);
708 	dprintk(1, "%s()\n", __func__);
709 
710 	*id = dev->tvnorm;
711 	return 0;
712 }
713 
vidioc_s_std(struct file * file,void * priv,v4l2_std_id tvnorms)714 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms)
715 {
716 	struct cx23885_dev *dev = video_drvdata(file);
717 	dprintk(1, "%s()\n", __func__);
718 
719 	return cx23885_set_tvnorm(dev, tvnorms);
720 }
721 
cx23885_enum_input(struct cx23885_dev * dev,struct v4l2_input * i)722 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
723 {
724 	static const char *iname[] = {
725 		[CX23885_VMUX_COMPOSITE1] = "Composite1",
726 		[CX23885_VMUX_COMPOSITE2] = "Composite2",
727 		[CX23885_VMUX_COMPOSITE3] = "Composite3",
728 		[CX23885_VMUX_COMPOSITE4] = "Composite4",
729 		[CX23885_VMUX_SVIDEO]     = "S-Video",
730 		[CX23885_VMUX_COMPONENT]  = "Component",
731 		[CX23885_VMUX_TELEVISION] = "Television",
732 		[CX23885_VMUX_CABLE]      = "Cable TV",
733 		[CX23885_VMUX_DVB]        = "DVB",
734 		[CX23885_VMUX_DEBUG]      = "for debug only",
735 	};
736 	unsigned int n;
737 	dprintk(1, "%s()\n", __func__);
738 
739 	n = i->index;
740 	if (n >= MAX_CX23885_INPUT)
741 		return -EINVAL;
742 
743 	if (0 == INPUT(n)->type)
744 		return -EINVAL;
745 
746 	i->index = n;
747 	i->type  = V4L2_INPUT_TYPE_CAMERA;
748 	strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
749 	i->std = CX23885_NORMS;
750 	if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
751 		(CX23885_VMUX_CABLE == INPUT(n)->type)) {
752 		i->type = V4L2_INPUT_TYPE_TUNER;
753 		i->audioset = 4;
754 	} else {
755 		/* Two selectable audio inputs for non-tv inputs */
756 		i->audioset = 3;
757 	}
758 
759 	if (dev->input == n) {
760 		/* enum'd input matches our configured input.
761 		 * Ask the video decoder to process the call
762 		 * and give it an oppertunity to update the
763 		 * status field.
764 		 */
765 		call_all(dev, video, g_input_status, &i->status);
766 	}
767 
768 	return 0;
769 }
770 
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * i)771 static int vidioc_enum_input(struct file *file, void *priv,
772 				struct v4l2_input *i)
773 {
774 	struct cx23885_dev *dev = video_drvdata(file);
775 	dprintk(1, "%s()\n", __func__);
776 	return cx23885_enum_input(dev, i);
777 }
778 
cx23885_get_input(struct file * file,void * priv,unsigned int * i)779 int cx23885_get_input(struct file *file, void *priv, unsigned int *i)
780 {
781 	struct cx23885_dev *dev = video_drvdata(file);
782 
783 	*i = dev->input;
784 	dprintk(1, "%s() returns %d\n", __func__, *i);
785 	return 0;
786 }
787 
vidioc_g_input(struct file * file,void * priv,unsigned int * i)788 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
789 {
790 	return cx23885_get_input(file, priv, i);
791 }
792 
cx23885_set_input(struct file * file,void * priv,unsigned int i)793 int cx23885_set_input(struct file *file, void *priv, unsigned int i)
794 {
795 	struct cx23885_dev *dev = video_drvdata(file);
796 
797 	dprintk(1, "%s(%d)\n", __func__, i);
798 
799 	if (i >= MAX_CX23885_INPUT) {
800 		dprintk(1, "%s() -EINVAL\n", __func__);
801 		return -EINVAL;
802 	}
803 
804 	if (INPUT(i)->type == 0)
805 		return -EINVAL;
806 
807 	cx23885_video_mux(dev, i);
808 
809 	/* By default establish the default audio input for the card also */
810 	/* Caller is free to use VIDIOC_S_AUDIO to override afterwards */
811 	cx23885_audio_mux(dev, i);
812 	return 0;
813 }
814 
vidioc_s_input(struct file * file,void * priv,unsigned int i)815 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
816 {
817 	return cx23885_set_input(file, priv, i);
818 }
819 
vidioc_log_status(struct file * file,void * priv)820 static int vidioc_log_status(struct file *file, void *priv)
821 {
822 	struct cx23885_dev *dev = video_drvdata(file);
823 
824 	call_all(dev, core, log_status);
825 	return 0;
826 }
827 
cx23885_query_audinput(struct file * file,void * priv,struct v4l2_audio * i)828 static int cx23885_query_audinput(struct file *file, void *priv,
829 	struct v4l2_audio *i)
830 {
831 	static const char *iname[] = {
832 		[0] = "Baseband L/R 1",
833 		[1] = "Baseband L/R 2",
834 		[2] = "TV",
835 	};
836 	unsigned int n;
837 	dprintk(1, "%s()\n", __func__);
838 
839 	n = i->index;
840 	if (n >= 3)
841 		return -EINVAL;
842 
843 	memset(i, 0, sizeof(*i));
844 	i->index = n;
845 	strscpy(i->name, iname[n], sizeof(i->name));
846 	i->capability = V4L2_AUDCAP_STEREO;
847 	return 0;
848 
849 }
850 
vidioc_enum_audinput(struct file * file,void * priv,struct v4l2_audio * i)851 static int vidioc_enum_audinput(struct file *file, void *priv,
852 				struct v4l2_audio *i)
853 {
854 	return cx23885_query_audinput(file, priv, i);
855 }
856 
vidioc_g_audinput(struct file * file,void * priv,struct v4l2_audio * i)857 static int vidioc_g_audinput(struct file *file, void *priv,
858 	struct v4l2_audio *i)
859 {
860 	struct cx23885_dev *dev = video_drvdata(file);
861 
862 	if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
863 		(CX23885_VMUX_CABLE == INPUT(dev->input)->type))
864 		i->index = 2;
865 	else
866 		i->index = dev->audinput;
867 	dprintk(1, "%s(input=%d)\n", __func__, i->index);
868 
869 	return cx23885_query_audinput(file, priv, i);
870 }
871 
vidioc_s_audinput(struct file * file,void * priv,const struct v4l2_audio * i)872 static int vidioc_s_audinput(struct file *file, void *priv,
873 	const struct v4l2_audio *i)
874 {
875 	struct cx23885_dev *dev = video_drvdata(file);
876 
877 	if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
878 		(CX23885_VMUX_CABLE == INPUT(dev->input)->type)) {
879 		return i->index != 2 ? -EINVAL : 0;
880 	}
881 	if (i->index > 1)
882 		return -EINVAL;
883 
884 	dprintk(1, "%s(%d)\n", __func__, i->index);
885 
886 	dev->audinput = i->index;
887 
888 	/* Skip the audio defaults from the cards struct, caller wants
889 	 * directly touch the audio mux hardware. */
890 	cx23885_flatiron_mux(dev, dev->audinput + 1);
891 	return 0;
892 }
893 
vidioc_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)894 static int vidioc_g_tuner(struct file *file, void *priv,
895 				struct v4l2_tuner *t)
896 {
897 	struct cx23885_dev *dev = video_drvdata(file);
898 
899 	switch (dev->board) { /* i2c device tuners */
900 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
901 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
902 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
903 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
904 		break;
905 	default:
906 		if (dev->tuner_type == TUNER_ABSENT)
907 			return -EINVAL;
908 		break;
909 	}
910 	if (0 != t->index)
911 		return -EINVAL;
912 
913 	strscpy(t->name, "Television", sizeof(t->name));
914 
915 	call_all(dev, tuner, g_tuner, t);
916 	return 0;
917 }
918 
vidioc_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)919 static int vidioc_s_tuner(struct file *file, void *priv,
920 				const struct v4l2_tuner *t)
921 {
922 	struct cx23885_dev *dev = video_drvdata(file);
923 
924 	switch (dev->board) { /* i2c device tuners */
925 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
926 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
927 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
928 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
929 		break;
930 	default:
931 		if (dev->tuner_type == TUNER_ABSENT)
932 			return -EINVAL;
933 		break;
934 	}
935 	if (0 != t->index)
936 		return -EINVAL;
937 	/* Update the A/V core */
938 	call_all(dev, tuner, s_tuner, t);
939 
940 	return 0;
941 }
942 
vidioc_g_frequency(struct file * file,void * priv,struct v4l2_frequency * f)943 static int vidioc_g_frequency(struct file *file, void *priv,
944 				struct v4l2_frequency *f)
945 {
946 	struct cx23885_dev *dev = video_drvdata(file);
947 
948 	switch (dev->board) { /* i2c device tuners */
949 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
950 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
951 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
952 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
953 		break;
954 	default:
955 		if (dev->tuner_type == TUNER_ABSENT)
956 			return -EINVAL;
957 		break;
958 	}
959 	f->type = V4L2_TUNER_ANALOG_TV;
960 	f->frequency = dev->freq;
961 
962 	call_all(dev, tuner, g_frequency, f);
963 
964 	return 0;
965 }
966 
cx23885_set_freq(struct cx23885_dev * dev,const struct v4l2_frequency * f)967 static int cx23885_set_freq(struct cx23885_dev *dev, const struct v4l2_frequency *f)
968 {
969 	struct v4l2_ctrl *mute;
970 	int old_mute_val = 1;
971 
972 	switch (dev->board) { /* i2c device tuners */
973 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
974 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
975 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
976 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
977 		break;
978 	default:
979 		if (dev->tuner_type == TUNER_ABSENT)
980 			return -EINVAL;
981 		break;
982 	}
983 	if (unlikely(f->tuner != 0))
984 		return -EINVAL;
985 
986 	dev->freq = f->frequency;
987 
988 	/* I need to mute audio here */
989 	mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
990 	if (mute) {
991 		old_mute_val = v4l2_ctrl_g_ctrl(mute);
992 		if (!old_mute_val)
993 			v4l2_ctrl_s_ctrl(mute, 1);
994 	}
995 
996 	call_all(dev, tuner, s_frequency, f);
997 
998 	/* When changing channels it is required to reset TVAUDIO */
999 	msleep(100);
1000 
1001 	/* I need to unmute audio here */
1002 	if (old_mute_val == 0)
1003 		v4l2_ctrl_s_ctrl(mute, old_mute_val);
1004 
1005 	return 0;
1006 }
1007 
cx23885_set_freq_via_ops(struct cx23885_dev * dev,const struct v4l2_frequency * f)1008 static int cx23885_set_freq_via_ops(struct cx23885_dev *dev,
1009 	const struct v4l2_frequency *f)
1010 {
1011 	struct v4l2_ctrl *mute;
1012 	int old_mute_val = 1;
1013 	struct vb2_dvb_frontend *vfe;
1014 	struct dvb_frontend *fe;
1015 
1016 	struct analog_parameters params = {
1017 		.mode      = V4L2_TUNER_ANALOG_TV,
1018 		.audmode   = V4L2_TUNER_MODE_STEREO,
1019 		.std       = dev->tvnorm,
1020 		.frequency = f->frequency
1021 	};
1022 
1023 	dev->freq = f->frequency;
1024 
1025 	/* I need to mute audio here */
1026 	mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1027 	if (mute) {
1028 		old_mute_val = v4l2_ctrl_g_ctrl(mute);
1029 		if (!old_mute_val)
1030 			v4l2_ctrl_s_ctrl(mute, 1);
1031 	}
1032 
1033 	/* If HVR1850 */
1034 	dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__,
1035 		params.frequency, f->tuner, params.std);
1036 
1037 	vfe = vb2_dvb_get_frontend(&dev->ts2.frontends, 1);
1038 	if (!vfe) {
1039 		return -EINVAL;
1040 	}
1041 
1042 	fe = vfe->dvb.frontend;
1043 
1044 	if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
1045 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
1046 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
1047 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4) ||
1048 	    (dev->board == CX23885_BOARD_HAUPPAUGE_HVR5525) ||
1049 	    (dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_DVB) ||
1050 	    (dev->board == CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC))
1051 		fe = &dev->ts1.analog_fe;
1052 
1053 	if (fe && fe->ops.tuner_ops.set_analog_params) {
1054 		call_all(dev, video, s_std, dev->tvnorm);
1055 		fe->ops.tuner_ops.set_analog_params(fe, &params);
1056 	}
1057 	else
1058 		pr_err("%s() No analog tuner, aborting\n", __func__);
1059 
1060 	/* When changing channels it is required to reset TVAUDIO */
1061 	msleep(100);
1062 
1063 	/* I need to unmute audio here */
1064 	if (old_mute_val == 0)
1065 		v4l2_ctrl_s_ctrl(mute, old_mute_val);
1066 
1067 	return 0;
1068 }
1069 
cx23885_set_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)1070 int cx23885_set_frequency(struct file *file, void *priv,
1071 	const struct v4l2_frequency *f)
1072 {
1073 	struct cx23885_dev *dev = video_drvdata(file);
1074 	int ret;
1075 
1076 	switch (dev->board) {
1077 	case CX23885_BOARD_HAUPPAUGE_HVR1255:
1078 	case CX23885_BOARD_HAUPPAUGE_HVR1255_22111:
1079 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
1080 	case CX23885_BOARD_HAUPPAUGE_HVR1850:
1081 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
1082 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
1083 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
1084 		ret = cx23885_set_freq_via_ops(dev, f);
1085 		break;
1086 	default:
1087 		ret = cx23885_set_freq(dev, f);
1088 	}
1089 
1090 	return ret;
1091 }
1092 
vidioc_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)1093 static int vidioc_s_frequency(struct file *file, void *priv,
1094 	const struct v4l2_frequency *f)
1095 {
1096 	return cx23885_set_frequency(file, priv, f);
1097 }
1098 
1099 /* ----------------------------------------------------------- */
1100 
cx23885_video_irq(struct cx23885_dev * dev,u32 status)1101 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1102 {
1103 	u32 mask, count;
1104 	int handled = 0;
1105 
1106 	mask   = cx_read(VID_A_INT_MSK);
1107 	if (0 == (status & mask))
1108 		return handled;
1109 
1110 	cx_write(VID_A_INT_STAT, status);
1111 
1112 	/* risc op code error, fifo overflow or line sync detection error */
1113 	if ((status & VID_BC_MSK_OPC_ERR) ||
1114 		(status & VID_BC_MSK_SYNC) ||
1115 		(status & VID_BC_MSK_OF)) {
1116 
1117 		if (status & VID_BC_MSK_OPC_ERR) {
1118 			dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
1119 				VID_BC_MSK_OPC_ERR);
1120 			pr_warn("%s: video risc op code error\n",
1121 				dev->name);
1122 			cx23885_sram_channel_dump(dev,
1123 				&dev->sram_channels[SRAM_CH01]);
1124 		}
1125 
1126 		if (status & VID_BC_MSK_SYNC)
1127 			dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) video lines miss-match\n",
1128 				VID_BC_MSK_SYNC);
1129 
1130 		if (status & VID_BC_MSK_OF)
1131 			dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n",
1132 				VID_BC_MSK_OF);
1133 
1134 	}
1135 
1136 	/* Video */
1137 	if (status & VID_BC_MSK_RISCI1) {
1138 		spin_lock(&dev->slock);
1139 		count = cx_read(VID_A_GPCNT);
1140 		cx23885_video_wakeup(dev, &dev->vidq, count);
1141 		spin_unlock(&dev->slock);
1142 		handled++;
1143 	}
1144 
1145 	/* Allow the VBI framework to process it's payload */
1146 	handled += cx23885_vbi_irq(dev, status);
1147 
1148 	return handled;
1149 }
1150 
1151 /* ----------------------------------------------------------- */
1152 /* exported stuff                                              */
1153 
1154 static const struct v4l2_file_operations video_fops = {
1155 	.owner	       = THIS_MODULE,
1156 	.open           = v4l2_fh_open,
1157 	.release        = vb2_fop_release,
1158 	.read           = vb2_fop_read,
1159 	.poll		= vb2_fop_poll,
1160 	.unlocked_ioctl = video_ioctl2,
1161 	.mmap           = vb2_fop_mmap,
1162 };
1163 
1164 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1165 	.vidioc_querycap      = vidioc_querycap,
1166 	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1167 	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1168 	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1169 	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1170 	.vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1171 	.vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1172 	.vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1173 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
1174 	.vidioc_prepare_buf   = vb2_ioctl_prepare_buf,
1175 	.vidioc_querybuf      = vb2_ioctl_querybuf,
1176 	.vidioc_qbuf          = vb2_ioctl_qbuf,
1177 	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
1178 	.vidioc_streamon      = vb2_ioctl_streamon,
1179 	.vidioc_streamoff     = vb2_ioctl_streamoff,
1180 	.vidioc_g_pixelaspect = vidioc_g_pixelaspect,
1181 	.vidioc_g_selection   = vidioc_g_selection,
1182 	.vidioc_s_std         = vidioc_s_std,
1183 	.vidioc_g_std         = vidioc_g_std,
1184 	.vidioc_enum_input    = vidioc_enum_input,
1185 	.vidioc_g_input       = vidioc_g_input,
1186 	.vidioc_s_input       = vidioc_s_input,
1187 	.vidioc_log_status    = vidioc_log_status,
1188 	.vidioc_g_tuner       = vidioc_g_tuner,
1189 	.vidioc_s_tuner       = vidioc_s_tuner,
1190 	.vidioc_g_frequency   = vidioc_g_frequency,
1191 	.vidioc_s_frequency   = vidioc_s_frequency,
1192 #ifdef CONFIG_VIDEO_ADV_DEBUG
1193 	.vidioc_g_chip_info   = cx23885_g_chip_info,
1194 	.vidioc_g_register    = cx23885_g_register,
1195 	.vidioc_s_register    = cx23885_s_register,
1196 #endif
1197 	.vidioc_enumaudio     = vidioc_enum_audinput,
1198 	.vidioc_g_audio       = vidioc_g_audinput,
1199 	.vidioc_s_audio       = vidioc_s_audinput,
1200 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1201 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1202 };
1203 
1204 static struct video_device cx23885_vbi_template;
1205 static struct video_device cx23885_video_template = {
1206 	.name                 = "cx23885-video",
1207 	.fops                 = &video_fops,
1208 	.ioctl_ops	      = &video_ioctl_ops,
1209 	.tvnorms              = CX23885_NORMS,
1210 };
1211 
cx23885_video_unregister(struct cx23885_dev * dev)1212 void cx23885_video_unregister(struct cx23885_dev *dev)
1213 {
1214 	dprintk(1, "%s()\n", __func__);
1215 	cx23885_irq_remove(dev, 0x01);
1216 
1217 	if (dev->vbi_dev) {
1218 		if (video_is_registered(dev->vbi_dev))
1219 			video_unregister_device(dev->vbi_dev);
1220 		else
1221 			video_device_release(dev->vbi_dev);
1222 		dev->vbi_dev = NULL;
1223 	}
1224 	if (dev->video_dev) {
1225 		if (video_is_registered(dev->video_dev))
1226 			video_unregister_device(dev->video_dev);
1227 		else
1228 			video_device_release(dev->video_dev);
1229 		dev->video_dev = NULL;
1230 	}
1231 
1232 	if (dev->audio_dev)
1233 		cx23885_audio_unregister(dev);
1234 }
1235 
cx23885_video_register(struct cx23885_dev * dev)1236 int cx23885_video_register(struct cx23885_dev *dev)
1237 {
1238 	struct vb2_queue *q;
1239 	int err;
1240 
1241 	dprintk(1, "%s()\n", __func__);
1242 
1243 	/* Initialize VBI template */
1244 	cx23885_vbi_template = cx23885_video_template;
1245 	strscpy(cx23885_vbi_template.name, "cx23885-vbi",
1246 		sizeof(cx23885_vbi_template.name));
1247 
1248 	dev->tvnorm = V4L2_STD_NTSC_M;
1249 	dev->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV);
1250 	dev->field = V4L2_FIELD_INTERLACED;
1251 	dev->width = 720;
1252 	dev->height = norm_maxh(dev->tvnorm);
1253 
1254 	/* init video dma queues */
1255 	INIT_LIST_HEAD(&dev->vidq.active);
1256 
1257 	/* init vbi dma queues */
1258 	INIT_LIST_HEAD(&dev->vbiq.active);
1259 
1260 	cx23885_irq_add_enable(dev, 0x01);
1261 
1262 	if ((TUNER_ABSENT != dev->tuner_type) &&
1263 			((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
1264 		struct v4l2_subdev *sd = NULL;
1265 
1266 		if (dev->tuner_addr)
1267 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1268 				&dev->i2c_bus[dev->tuner_bus].i2c_adap,
1269 				"tuner", dev->tuner_addr, NULL);
1270 		else
1271 			sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1272 				&dev->i2c_bus[dev->tuner_bus].i2c_adap,
1273 				"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1274 		if (sd) {
1275 			struct tuner_setup tun_setup;
1276 
1277 			memset(&tun_setup, 0, sizeof(tun_setup));
1278 			tun_setup.mode_mask = T_ANALOG_TV;
1279 			tun_setup.type = dev->tuner_type;
1280 			tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1281 			tun_setup.tuner_callback = cx23885_tuner_callback;
1282 
1283 			v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1284 
1285 			if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) ||
1286 			    (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) {
1287 				struct xc2028_ctrl ctrl = {
1288 					.fname = XC2028_DEFAULT_FIRMWARE,
1289 					.max_len = 64
1290 				};
1291 				struct v4l2_priv_tun_config cfg = {
1292 					.tuner = dev->tuner_type,
1293 					.priv = &ctrl
1294 				};
1295 				v4l2_subdev_call(sd, tuner, s_config, &cfg);
1296 			}
1297 
1298 			if (dev->board == CX23885_BOARD_AVERMEDIA_HC81R) {
1299 				struct xc2028_ctrl ctrl = {
1300 					.fname = "xc3028L-v36.fw",
1301 					.max_len = 64
1302 				};
1303 				struct v4l2_priv_tun_config cfg = {
1304 					.tuner = dev->tuner_type,
1305 					.priv = &ctrl
1306 				};
1307 				v4l2_subdev_call(sd, tuner, s_config, &cfg);
1308 			}
1309 		}
1310 	}
1311 
1312 	/* initial device configuration */
1313 	mutex_lock(&dev->lock);
1314 	cx23885_set_tvnorm(dev, dev->tvnorm);
1315 	cx23885_video_mux(dev, 0);
1316 	cx23885_audio_mux(dev, 0);
1317 	mutex_unlock(&dev->lock);
1318 
1319 	q = &dev->vb2_vidq;
1320 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1321 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1322 	q->gfp_flags = GFP_DMA32;
1323 	q->min_buffers_needed = 2;
1324 	q->drv_priv = dev;
1325 	q->buf_struct_size = sizeof(struct cx23885_buffer);
1326 	q->ops = &cx23885_video_qops;
1327 	q->mem_ops = &vb2_dma_sg_memops;
1328 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1329 	q->lock = &dev->lock;
1330 	q->dev = &dev->pci->dev;
1331 
1332 	err = vb2_queue_init(q);
1333 	if (err < 0)
1334 		goto fail_unreg;
1335 
1336 	q = &dev->vb2_vbiq;
1337 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1338 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1339 	q->gfp_flags = GFP_DMA32;
1340 	q->min_buffers_needed = 2;
1341 	q->drv_priv = dev;
1342 	q->buf_struct_size = sizeof(struct cx23885_buffer);
1343 	q->ops = &cx23885_vbi_qops;
1344 	q->mem_ops = &vb2_dma_sg_memops;
1345 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1346 	q->lock = &dev->lock;
1347 	q->dev = &dev->pci->dev;
1348 
1349 	err = vb2_queue_init(q);
1350 	if (err < 0)
1351 		goto fail_unreg;
1352 
1353 	/* register Video device */
1354 	dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1355 		&cx23885_video_template, "video");
1356 	dev->video_dev->queue = &dev->vb2_vidq;
1357 	dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1358 				      V4L2_CAP_AUDIO | V4L2_CAP_VIDEO_CAPTURE;
1359 	switch (dev->board) { /* i2c device tuners */
1360 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
1361 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
1362 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
1363 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
1364 		dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1365 		break;
1366 	default:
1367 		if (dev->tuner_type != TUNER_ABSENT)
1368 			dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1369 	}
1370 
1371 	err = video_register_device(dev->video_dev, VFL_TYPE_VIDEO,
1372 				    video_nr[dev->nr]);
1373 	if (err < 0) {
1374 		pr_info("%s: can't register video device\n",
1375 			dev->name);
1376 		goto fail_unreg;
1377 	}
1378 	pr_info("%s: registered device %s [v4l2]\n",
1379 	       dev->name, video_device_node_name(dev->video_dev));
1380 
1381 	/* register VBI device */
1382 	dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
1383 		&cx23885_vbi_template, "vbi");
1384 	dev->vbi_dev->queue = &dev->vb2_vbiq;
1385 	dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1386 				    V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE;
1387 	switch (dev->board) { /* i2c device tuners */
1388 	case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
1389 	case CX23885_BOARD_HAUPPAUGE_HVR5525:
1390 	case CX23885_BOARD_HAUPPAUGE_QUADHD_DVB:
1391 	case CX23885_BOARD_HAUPPAUGE_QUADHD_ATSC:
1392 		dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1393 		break;
1394 	default:
1395 		if (dev->tuner_type != TUNER_ABSENT)
1396 			dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1397 	}
1398 	err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
1399 				    vbi_nr[dev->nr]);
1400 	if (err < 0) {
1401 		pr_info("%s: can't register vbi device\n",
1402 			dev->name);
1403 		goto fail_unreg;
1404 	}
1405 	pr_info("%s: registered device %s\n",
1406 	       dev->name, video_device_node_name(dev->vbi_dev));
1407 
1408 	/* Register ALSA audio device */
1409 	dev->audio_dev = cx23885_audio_register(dev);
1410 
1411 	return 0;
1412 
1413 fail_unreg:
1414 	cx23885_video_unregister(dev);
1415 	return err;
1416 }
1417