1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  * device driver for Conexant 2388x based TV cards
5  * video4linux video interface
6  *
7  * (c) 2003-04 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8  *
9  * (c) 2005-2006 Mauro Carvalho Chehab <mchehab@kernel.org>
10  *	- Multituner support
11  *	- video_ioctl2 conversion
12  *	- PAL/M fixes
13  */
14 
15 #include "cx88.h"
16 
17 #include <linux/init.h>
18 #include <linux/list.h>
19 #include <linux/module.h>
20 #include <linux/kmod.h>
21 #include <linux/kernel.h>
22 #include <linux/slab.h>
23 #include <linux/interrupt.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/delay.h>
26 #include <linux/kthread.h>
27 #include <asm/div64.h>
28 
29 #include <media/v4l2-common.h>
30 #include <media/v4l2-ioctl.h>
31 #include <media/v4l2-event.h>
32 #include <media/i2c/wm8775.h>
33 
34 MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
35 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
36 MODULE_LICENSE("GPL v2");
37 MODULE_VERSION(CX88_VERSION);
38 
39 /* ------------------------------------------------------------------ */
40 
41 static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
42 static unsigned int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
43 static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
44 
45 module_param_array(video_nr, int, NULL, 0444);
46 module_param_array(vbi_nr,   int, NULL, 0444);
47 module_param_array(radio_nr, int, NULL, 0444);
48 
49 MODULE_PARM_DESC(video_nr, "video device numbers");
50 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
51 MODULE_PARM_DESC(radio_nr, "radio device numbers");
52 
53 static unsigned int video_debug;
54 module_param(video_debug, int, 0644);
55 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
56 
57 static unsigned int irq_debug;
58 module_param(irq_debug, int, 0644);
59 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
60 
61 #define dprintk(level, fmt, arg...) do {			\
62 	if (video_debug >= level)				\
63 		printk(KERN_DEBUG pr_fmt("%s: video:" fmt),	\
64 			__func__, ##arg);			\
65 } while (0)
66 
67 /* ------------------------------------------------------------------- */
68 /* static data                                                         */
69 
70 static const struct cx8800_fmt formats[] = {
71 	{
72 		.fourcc   = V4L2_PIX_FMT_GREY,
73 		.cxformat = ColorFormatY8,
74 		.depth    = 8,
75 		.flags    = FORMAT_FLAGS_PACKED,
76 	}, {
77 		.fourcc   = V4L2_PIX_FMT_RGB555,
78 		.cxformat = ColorFormatRGB15,
79 		.depth    = 16,
80 		.flags    = FORMAT_FLAGS_PACKED,
81 	}, {
82 		.fourcc   = V4L2_PIX_FMT_RGB555X,
83 		.cxformat = ColorFormatRGB15 | ColorFormatBSWAP,
84 		.depth    = 16,
85 		.flags    = FORMAT_FLAGS_PACKED,
86 	}, {
87 		.fourcc   = V4L2_PIX_FMT_RGB565,
88 		.cxformat = ColorFormatRGB16,
89 		.depth    = 16,
90 		.flags    = FORMAT_FLAGS_PACKED,
91 	}, {
92 		.fourcc   = V4L2_PIX_FMT_RGB565X,
93 		.cxformat = ColorFormatRGB16 | ColorFormatBSWAP,
94 		.depth    = 16,
95 		.flags    = FORMAT_FLAGS_PACKED,
96 	}, {
97 		.fourcc   = V4L2_PIX_FMT_BGR24,
98 		.cxformat = ColorFormatRGB24,
99 		.depth    = 24,
100 		.flags    = FORMAT_FLAGS_PACKED,
101 	}, {
102 		.fourcc   = V4L2_PIX_FMT_BGR32,
103 		.cxformat = ColorFormatRGB32,
104 		.depth    = 32,
105 		.flags    = FORMAT_FLAGS_PACKED,
106 	}, {
107 		.fourcc   = V4L2_PIX_FMT_RGB32,
108 		.cxformat = ColorFormatRGB32 | ColorFormatBSWAP |
109 			    ColorFormatWSWAP,
110 		.depth    = 32,
111 		.flags    = FORMAT_FLAGS_PACKED,
112 	}, {
113 		.fourcc   = V4L2_PIX_FMT_YUYV,
114 		.cxformat = ColorFormatYUY2,
115 		.depth    = 16,
116 		.flags    = FORMAT_FLAGS_PACKED,
117 	}, {
118 		.fourcc   = V4L2_PIX_FMT_UYVY,
119 		.cxformat = ColorFormatYUY2 | ColorFormatBSWAP,
120 		.depth    = 16,
121 		.flags    = FORMAT_FLAGS_PACKED,
122 	},
123 };
124 
format_by_fourcc(unsigned int fourcc)125 static const struct cx8800_fmt *format_by_fourcc(unsigned int fourcc)
126 {
127 	unsigned int i;
128 
129 	for (i = 0; i < ARRAY_SIZE(formats); i++)
130 		if (formats[i].fourcc == fourcc)
131 			return formats + i;
132 	return NULL;
133 }
134 
135 /* ------------------------------------------------------------------- */
136 
137 struct cx88_ctrl {
138 	/* control information */
139 	u32 id;
140 	s32 minimum;
141 	s32 maximum;
142 	u32 step;
143 	s32 default_value;
144 
145 	/* control register information */
146 	u32 off;
147 	u32 reg;
148 	u32 sreg;
149 	u32 mask;
150 	u32 shift;
151 };
152 
153 static const struct cx88_ctrl cx8800_vid_ctls[] = {
154 	/* --- video --- */
155 	{
156 		.id            = V4L2_CID_BRIGHTNESS,
157 		.minimum       = 0x00,
158 		.maximum       = 0xff,
159 		.step          = 1,
160 		.default_value = 0x7f,
161 		.off           = 128,
162 		.reg           = MO_CONTR_BRIGHT,
163 		.mask          = 0x00ff,
164 		.shift         = 0,
165 	}, {
166 		.id            = V4L2_CID_CONTRAST,
167 		.minimum       = 0,
168 		.maximum       = 0xff,
169 		.step          = 1,
170 		.default_value = 0x3f,
171 		.off           = 0,
172 		.reg           = MO_CONTR_BRIGHT,
173 		.mask          = 0xff00,
174 		.shift         = 8,
175 	}, {
176 		.id            = V4L2_CID_HUE,
177 		.minimum       = 0,
178 		.maximum       = 0xff,
179 		.step          = 1,
180 		.default_value = 0x7f,
181 		.off           = 128,
182 		.reg           = MO_HUE,
183 		.mask          = 0x00ff,
184 		.shift         = 0,
185 	}, {
186 		/* strictly, this only describes only U saturation.
187 		 * V saturation is handled specially through code.
188 		 */
189 		.id            = V4L2_CID_SATURATION,
190 		.minimum       = 0,
191 		.maximum       = 0xff,
192 		.step          = 1,
193 		.default_value = 0x7f,
194 		.off           = 0,
195 		.reg           = MO_UV_SATURATION,
196 		.mask          = 0x00ff,
197 		.shift         = 0,
198 	}, {
199 		.id            = V4L2_CID_SHARPNESS,
200 		.minimum       = 0,
201 		.maximum       = 4,
202 		.step          = 1,
203 		.default_value = 0x0,
204 		.off           = 0,
205 		/*
206 		 * NOTE: the value is converted and written to both even
207 		 * and odd registers in the code
208 		 */
209 		.reg           = MO_FILTER_ODD,
210 		.mask          = 7 << 7,
211 		.shift         = 7,
212 	}, {
213 		.id            = V4L2_CID_CHROMA_AGC,
214 		.minimum       = 0,
215 		.maximum       = 1,
216 		.default_value = 0x1,
217 		.reg           = MO_INPUT_FORMAT,
218 		.mask          = 1 << 10,
219 		.shift         = 10,
220 	}, {
221 		.id            = V4L2_CID_COLOR_KILLER,
222 		.minimum       = 0,
223 		.maximum       = 1,
224 		.default_value = 0x1,
225 		.reg           = MO_INPUT_FORMAT,
226 		.mask          = 1 << 9,
227 		.shift         = 9,
228 	}, {
229 		.id            = V4L2_CID_BAND_STOP_FILTER,
230 		.minimum       = 0,
231 		.maximum       = 1,
232 		.step          = 1,
233 		.default_value = 0x0,
234 		.off           = 0,
235 		.reg           = MO_HTOTAL,
236 		.mask          = 3 << 11,
237 		.shift         = 11,
238 	}
239 };
240 
241 static const struct cx88_ctrl cx8800_aud_ctls[] = {
242 	{
243 		/* --- audio --- */
244 		.id            = V4L2_CID_AUDIO_MUTE,
245 		.minimum       = 0,
246 		.maximum       = 1,
247 		.default_value = 1,
248 		.reg           = AUD_VOL_CTL,
249 		.sreg          = SHADOW_AUD_VOL_CTL,
250 		.mask          = (1 << 6),
251 		.shift         = 6,
252 	}, {
253 		.id            = V4L2_CID_AUDIO_VOLUME,
254 		.minimum       = 0,
255 		.maximum       = 0x3f,
256 		.step          = 1,
257 		.default_value = 0x3f,
258 		.reg           = AUD_VOL_CTL,
259 		.sreg          = SHADOW_AUD_VOL_CTL,
260 		.mask          = 0x3f,
261 		.shift         = 0,
262 	}, {
263 		.id            = V4L2_CID_AUDIO_BALANCE,
264 		.minimum       = 0,
265 		.maximum       = 0x7f,
266 		.step          = 1,
267 		.default_value = 0x40,
268 		.reg           = AUD_BAL_CTL,
269 		.sreg          = SHADOW_AUD_BAL_CTL,
270 		.mask          = 0x7f,
271 		.shift         = 0,
272 	}
273 };
274 
275 enum {
276 	CX8800_VID_CTLS = ARRAY_SIZE(cx8800_vid_ctls),
277 	CX8800_AUD_CTLS = ARRAY_SIZE(cx8800_aud_ctls),
278 };
279 
280 /* ------------------------------------------------------------------ */
281 
cx88_video_mux(struct cx88_core * core,unsigned int input)282 int cx88_video_mux(struct cx88_core *core, unsigned int input)
283 {
284 	/* struct cx88_core *core = dev->core; */
285 
286 	dprintk(1, "video_mux: %d [vmux=%d,gpio=0x%x,0x%x,0x%x,0x%x]\n",
287 		input, INPUT(input).vmux,
288 		INPUT(input).gpio0, INPUT(input).gpio1,
289 		INPUT(input).gpio2, INPUT(input).gpio3);
290 	core->input = input;
291 	cx_andor(MO_INPUT_FORMAT, 0x03 << 14, INPUT(input).vmux << 14);
292 	cx_write(MO_GP3_IO, INPUT(input).gpio3);
293 	cx_write(MO_GP0_IO, INPUT(input).gpio0);
294 	cx_write(MO_GP1_IO, INPUT(input).gpio1);
295 	cx_write(MO_GP2_IO, INPUT(input).gpio2);
296 
297 	switch (INPUT(input).type) {
298 	case CX88_VMUX_SVIDEO:
299 		cx_set(MO_AFECFG_IO,    0x00000001);
300 		cx_set(MO_INPUT_FORMAT, 0x00010010);
301 		cx_set(MO_FILTER_EVEN,  0x00002020);
302 		cx_set(MO_FILTER_ODD,   0x00002020);
303 		break;
304 	default:
305 		cx_clear(MO_AFECFG_IO,    0x00000001);
306 		cx_clear(MO_INPUT_FORMAT, 0x00010010);
307 		cx_clear(MO_FILTER_EVEN,  0x00002020);
308 		cx_clear(MO_FILTER_ODD,   0x00002020);
309 		break;
310 	}
311 
312 	/*
313 	 * if there are audioroutes defined, we have an external
314 	 * ADC to deal with audio
315 	 */
316 	if (INPUT(input).audioroute) {
317 		/*
318 		 * The wm8775 module has the "2" route hardwired into
319 		 * the initialization. Some boards may use different
320 		 * routes for different inputs. HVR-1300 surely does
321 		 */
322 		if (core->sd_wm8775) {
323 			call_all(core, audio, s_routing,
324 				 INPUT(input).audioroute, 0, 0);
325 		}
326 		/*
327 		 * cx2388's C-ADC is connected to the tuner only.
328 		 * When used with S-Video, that ADC is busy dealing with
329 		 * chroma, so an external must be used for baseband audio
330 		 */
331 		if (INPUT(input).type != CX88_VMUX_TELEVISION &&
332 		    INPUT(input).type != CX88_VMUX_CABLE) {
333 			/* "I2S ADC mode" */
334 			core->tvaudio = WW_I2SADC;
335 			cx88_set_tvaudio(core);
336 		} else {
337 			/* Normal mode */
338 			cx_write(AUD_I2SCNTL, 0x0);
339 			cx_clear(AUD_CTL, EN_I2SIN_ENABLE);
340 		}
341 	}
342 
343 	return 0;
344 }
345 EXPORT_SYMBOL(cx88_video_mux);
346 
347 /* ------------------------------------------------------------------ */
348 
start_video_dma(struct cx8800_dev * dev,struct cx88_dmaqueue * q,struct cx88_buffer * buf)349 static int start_video_dma(struct cx8800_dev    *dev,
350 			   struct cx88_dmaqueue *q,
351 			   struct cx88_buffer   *buf)
352 {
353 	struct cx88_core *core = dev->core;
354 
355 	/* setup fifo + format */
356 	cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH21],
357 				buf->bpl, buf->risc.dma);
358 	cx88_set_scale(core, core->width, core->height, core->field);
359 	cx_write(MO_COLOR_CTRL, dev->fmt->cxformat | ColorFormatGamma);
360 
361 	/* reset counter */
362 	cx_write(MO_VIDY_GPCNTRL, GP_COUNT_CONTROL_RESET);
363 	q->count = 0;
364 
365 	/* enable irqs */
366 	cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_VIDINT);
367 
368 	/*
369 	 * Enables corresponding bits at PCI_INT_STAT:
370 	 *	bits 0 to 4: video, audio, transport stream, VIP, Host
371 	 *	bit 7: timer
372 	 *	bits 8 and 9: DMA complete for: SRC, DST
373 	 *	bits 10 and 11: BERR signal asserted for RISC: RD, WR
374 	 *	bits 12 to 15: BERR signal asserted for: BRDG, SRC, DST, IPB
375 	 */
376 	cx_set(MO_VID_INTMSK, 0x0f0011);
377 
378 	/* enable capture */
379 	cx_set(VID_CAPTURE_CONTROL, 0x06);
380 
381 	/* start dma */
382 	cx_set(MO_DEV_CNTRL2, (1 << 5));
383 	cx_set(MO_VID_DMACNTRL, 0x11); /* Planar Y and packed FIFO and RISC enable */
384 
385 	return 0;
386 }
387 
stop_video_dma(struct cx8800_dev * dev)388 static int __maybe_unused stop_video_dma(struct cx8800_dev    *dev)
389 {
390 	struct cx88_core *core = dev->core;
391 
392 	/* stop dma */
393 	cx_clear(MO_VID_DMACNTRL, 0x11);
394 
395 	/* disable capture */
396 	cx_clear(VID_CAPTURE_CONTROL, 0x06);
397 
398 	/* disable irqs */
399 	cx_clear(MO_PCI_INTMSK, PCI_INT_VIDINT);
400 	cx_clear(MO_VID_INTMSK, 0x0f0011);
401 	return 0;
402 }
403 
restart_video_queue(struct cx8800_dev * dev,struct cx88_dmaqueue * q)404 static int __maybe_unused restart_video_queue(struct cx8800_dev *dev,
405 					      struct cx88_dmaqueue *q)
406 {
407 	struct cx88_buffer *buf;
408 
409 	if (!list_empty(&q->active)) {
410 		buf = list_entry(q->active.next, struct cx88_buffer, list);
411 		dprintk(2, "restart_queue [%p/%d]: restart dma\n",
412 			buf, buf->vb.vb2_buf.index);
413 		start_video_dma(dev, q, buf);
414 	}
415 	return 0;
416 }
417 
418 /* ------------------------------------------------------------------ */
419 
queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])420 static int queue_setup(struct vb2_queue *q,
421 		       unsigned int *num_buffers, unsigned int *num_planes,
422 		       unsigned int sizes[], struct device *alloc_devs[])
423 {
424 	struct cx8800_dev *dev = q->drv_priv;
425 	struct cx88_core *core = dev->core;
426 
427 	*num_planes = 1;
428 	sizes[0] = (dev->fmt->depth * core->width * core->height) >> 3;
429 	return 0;
430 }
431 
buffer_prepare(struct vb2_buffer * vb)432 static int buffer_prepare(struct vb2_buffer *vb)
433 {
434 	int ret;
435 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
436 	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
437 	struct cx88_core *core = dev->core;
438 	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
439 	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
440 
441 	buf->bpl = core->width * dev->fmt->depth >> 3;
442 
443 	if (vb2_plane_size(vb, 0) < core->height * buf->bpl)
444 		return -EINVAL;
445 	vb2_set_plane_payload(vb, 0, core->height * buf->bpl);
446 
447 	switch (core->field) {
448 	case V4L2_FIELD_TOP:
449 		ret = cx88_risc_buffer(dev->pci, &buf->risc,
450 				       sgt->sgl, 0, UNSET,
451 				       buf->bpl, 0, core->height);
452 		break;
453 	case V4L2_FIELD_BOTTOM:
454 		ret = cx88_risc_buffer(dev->pci, &buf->risc,
455 				       sgt->sgl, UNSET, 0,
456 				       buf->bpl, 0, core->height);
457 		break;
458 	case V4L2_FIELD_SEQ_TB:
459 		ret = cx88_risc_buffer(dev->pci, &buf->risc,
460 				       sgt->sgl,
461 				       0, buf->bpl * (core->height >> 1),
462 				       buf->bpl, 0,
463 				       core->height >> 1);
464 		break;
465 	case V4L2_FIELD_SEQ_BT:
466 		ret = cx88_risc_buffer(dev->pci, &buf->risc,
467 				       sgt->sgl,
468 				       buf->bpl * (core->height >> 1), 0,
469 				       buf->bpl, 0,
470 				       core->height >> 1);
471 		break;
472 	case V4L2_FIELD_INTERLACED:
473 	default:
474 		ret = cx88_risc_buffer(dev->pci, &buf->risc,
475 				       sgt->sgl, 0, buf->bpl,
476 				       buf->bpl, buf->bpl,
477 				       core->height >> 1);
478 		break;
479 	}
480 	dprintk(2,
481 		"[%p/%d] %s - %dx%d %dbpp 0x%08x - dma=0x%08lx\n",
482 		buf, buf->vb.vb2_buf.index, __func__,
483 		core->width, core->height, dev->fmt->depth, dev->fmt->fourcc,
484 		(unsigned long)buf->risc.dma);
485 	return ret;
486 }
487 
buffer_finish(struct vb2_buffer * vb)488 static void buffer_finish(struct vb2_buffer *vb)
489 {
490 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
491 	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
492 	struct cx88_buffer *buf = container_of(vbuf, struct cx88_buffer, vb);
493 	struct cx88_riscmem *risc = &buf->risc;
494 
495 	if (risc->cpu)
496 		dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
497 				  risc->dma);
498 	memset(risc, 0, sizeof(*risc));
499 }
500 
buffer_queue(struct vb2_buffer * vb)501 static void buffer_queue(struct vb2_buffer *vb)
502 {
503 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
504 	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
505 	struct cx88_buffer    *buf = container_of(vbuf, struct cx88_buffer, vb);
506 	struct cx88_buffer    *prev;
507 	struct cx88_dmaqueue  *q    = &dev->vidq;
508 
509 	/* add jump to start */
510 	buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 8);
511 	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
512 	buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
513 
514 	if (list_empty(&q->active)) {
515 		list_add_tail(&buf->list, &q->active);
516 		dprintk(2, "[%p/%d] buffer_queue - first active\n",
517 			buf, buf->vb.vb2_buf.index);
518 
519 	} else {
520 		buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
521 		prev = list_entry(q->active.prev, struct cx88_buffer, list);
522 		list_add_tail(&buf->list, &q->active);
523 		prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
524 		dprintk(2, "[%p/%d] buffer_queue - append to active\n",
525 			buf, buf->vb.vb2_buf.index);
526 	}
527 }
528 
start_streaming(struct vb2_queue * q,unsigned int count)529 static int start_streaming(struct vb2_queue *q, unsigned int count)
530 {
531 	struct cx8800_dev *dev = q->drv_priv;
532 	struct cx88_dmaqueue *dmaq = &dev->vidq;
533 	struct cx88_buffer *buf = list_entry(dmaq->active.next,
534 			struct cx88_buffer, list);
535 
536 	start_video_dma(dev, dmaq, buf);
537 	return 0;
538 }
539 
stop_streaming(struct vb2_queue * q)540 static void stop_streaming(struct vb2_queue *q)
541 {
542 	struct cx8800_dev *dev = q->drv_priv;
543 	struct cx88_core *core = dev->core;
544 	struct cx88_dmaqueue *dmaq = &dev->vidq;
545 	unsigned long flags;
546 
547 	cx_clear(MO_VID_DMACNTRL, 0x11);
548 	cx_clear(VID_CAPTURE_CONTROL, 0x06);
549 	spin_lock_irqsave(&dev->slock, flags);
550 	while (!list_empty(&dmaq->active)) {
551 		struct cx88_buffer *buf = list_entry(dmaq->active.next,
552 			struct cx88_buffer, list);
553 
554 		list_del(&buf->list);
555 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
556 	}
557 	spin_unlock_irqrestore(&dev->slock, flags);
558 }
559 
560 static const struct vb2_ops cx8800_video_qops = {
561 	.queue_setup    = queue_setup,
562 	.buf_prepare  = buffer_prepare,
563 	.buf_finish = buffer_finish,
564 	.buf_queue    = buffer_queue,
565 	.wait_prepare = vb2_ops_wait_prepare,
566 	.wait_finish = vb2_ops_wait_finish,
567 	.start_streaming = start_streaming,
568 	.stop_streaming = stop_streaming,
569 };
570 
571 /* ------------------------------------------------------------------ */
572 
radio_open(struct file * file)573 static int radio_open(struct file *file)
574 {
575 	struct cx8800_dev *dev = video_drvdata(file);
576 	struct cx88_core *core = dev->core;
577 	int ret = v4l2_fh_open(file);
578 
579 	if (ret)
580 		return ret;
581 
582 	cx_write(MO_GP3_IO, core->board.radio.gpio3);
583 	cx_write(MO_GP0_IO, core->board.radio.gpio0);
584 	cx_write(MO_GP1_IO, core->board.radio.gpio1);
585 	cx_write(MO_GP2_IO, core->board.radio.gpio2);
586 	if (core->board.radio.audioroute) {
587 		if (core->sd_wm8775) {
588 			call_all(core, audio, s_routing,
589 				 core->board.radio.audioroute, 0, 0);
590 		}
591 		/* "I2S ADC mode" */
592 		core->tvaudio = WW_I2SADC;
593 		cx88_set_tvaudio(core);
594 	} else {
595 		/* FM Mode */
596 		core->tvaudio = WW_FM;
597 		cx88_set_tvaudio(core);
598 		cx88_set_stereo(core, V4L2_TUNER_MODE_STEREO, 1);
599 	}
600 	call_all(core, tuner, s_radio);
601 	return 0;
602 }
603 
604 /* ------------------------------------------------------------------ */
605 /* VIDEO CTRL IOCTLS                                                  */
606 
cx8800_s_vid_ctrl(struct v4l2_ctrl * ctrl)607 static int cx8800_s_vid_ctrl(struct v4l2_ctrl *ctrl)
608 {
609 	struct cx88_core *core =
610 		container_of(ctrl->handler, struct cx88_core, video_hdl);
611 	const struct cx88_ctrl *cc = ctrl->priv;
612 	u32 value, mask;
613 
614 	mask = cc->mask;
615 	switch (ctrl->id) {
616 	case V4L2_CID_SATURATION:
617 		/* special v_sat handling */
618 
619 		value = ((ctrl->val - cc->off) << cc->shift) & cc->mask;
620 
621 		if (core->tvnorm & V4L2_STD_SECAM) {
622 			/* For SECAM, both U and V sat should be equal */
623 			value = value << 8 | value;
624 		} else {
625 			/* Keeps U Saturation proportional to V Sat */
626 			value = (value * 0x5a) / 0x7f << 8 | value;
627 		}
628 		mask = 0xffff;
629 		break;
630 	case V4L2_CID_SHARPNESS:
631 		/* 0b000, 0b100, 0b101, 0b110, or 0b111 */
632 		value = (ctrl->val < 1 ? 0 : ((ctrl->val + 3) << 7));
633 		/* needs to be set for both fields */
634 		cx_andor(MO_FILTER_EVEN, mask, value);
635 		break;
636 	case V4L2_CID_CHROMA_AGC:
637 		value = ((ctrl->val - cc->off) << cc->shift) & cc->mask;
638 		break;
639 	default:
640 		value = ((ctrl->val - cc->off) << cc->shift) & cc->mask;
641 		break;
642 	}
643 	dprintk(1,
644 		"set_control id=0x%X(%s) ctrl=0x%02x, reg=0x%02x val=0x%02x (mask 0x%02x)%s\n",
645 		ctrl->id, ctrl->name, ctrl->val, cc->reg, value,
646 		mask, cc->sreg ? " [shadowed]" : "");
647 	if (cc->sreg)
648 		cx_sandor(cc->sreg, cc->reg, mask, value);
649 	else
650 		cx_andor(cc->reg, mask, value);
651 	return 0;
652 }
653 
cx8800_s_aud_ctrl(struct v4l2_ctrl * ctrl)654 static int cx8800_s_aud_ctrl(struct v4l2_ctrl *ctrl)
655 {
656 	struct cx88_core *core =
657 		container_of(ctrl->handler, struct cx88_core, audio_hdl);
658 	const struct cx88_ctrl *cc = ctrl->priv;
659 	u32 value, mask;
660 
661 	/* Pass changes onto any WM8775 */
662 	if (core->sd_wm8775) {
663 		switch (ctrl->id) {
664 		case V4L2_CID_AUDIO_MUTE:
665 			wm8775_s_ctrl(core, ctrl->id, ctrl->val);
666 			break;
667 		case V4L2_CID_AUDIO_VOLUME:
668 			wm8775_s_ctrl(core, ctrl->id, (ctrl->val) ?
669 						(0x90 + ctrl->val) << 8 : 0);
670 			break;
671 		case V4L2_CID_AUDIO_BALANCE:
672 			wm8775_s_ctrl(core, ctrl->id, ctrl->val << 9);
673 			break;
674 		default:
675 			break;
676 		}
677 	}
678 
679 	mask = cc->mask;
680 	switch (ctrl->id) {
681 	case V4L2_CID_AUDIO_BALANCE:
682 		value = (ctrl->val < 0x40) ?
683 			(0x7f - ctrl->val) : (ctrl->val - 0x40);
684 		break;
685 	case V4L2_CID_AUDIO_VOLUME:
686 		value = 0x3f - (ctrl->val & 0x3f);
687 		break;
688 	default:
689 		value = ((ctrl->val - cc->off) << cc->shift) & cc->mask;
690 		break;
691 	}
692 	dprintk(1,
693 		"set_control id=0x%X(%s) ctrl=0x%02x, reg=0x%02x val=0x%02x (mask 0x%02x)%s\n",
694 		ctrl->id, ctrl->name, ctrl->val, cc->reg, value,
695 		mask, cc->sreg ? " [shadowed]" : "");
696 	if (cc->sreg)
697 		cx_sandor(cc->sreg, cc->reg, mask, value);
698 	else
699 		cx_andor(cc->reg, mask, value);
700 	return 0;
701 }
702 
703 /* ------------------------------------------------------------------ */
704 /* VIDEO IOCTLS                                                       */
705 
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)706 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
707 				struct v4l2_format *f)
708 {
709 	struct cx8800_dev *dev = video_drvdata(file);
710 	struct cx88_core *core = dev->core;
711 
712 	f->fmt.pix.width        = core->width;
713 	f->fmt.pix.height       = core->height;
714 	f->fmt.pix.field        = core->field;
715 	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
716 	f->fmt.pix.bytesperline =
717 		(f->fmt.pix.width * dev->fmt->depth) >> 3;
718 	f->fmt.pix.sizeimage =
719 		f->fmt.pix.height * f->fmt.pix.bytesperline;
720 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
721 	return 0;
722 }
723 
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)724 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
725 				  struct v4l2_format *f)
726 {
727 	struct cx8800_dev *dev = video_drvdata(file);
728 	struct cx88_core *core = dev->core;
729 	const struct cx8800_fmt *fmt;
730 	enum v4l2_field   field;
731 	unsigned int      maxw, maxh;
732 
733 	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
734 	if (!fmt)
735 		return -EINVAL;
736 
737 	maxw = norm_maxw(core->tvnorm);
738 	maxh = norm_maxh(core->tvnorm);
739 
740 	field = f->fmt.pix.field;
741 
742 	switch (field) {
743 	case V4L2_FIELD_TOP:
744 	case V4L2_FIELD_BOTTOM:
745 	case V4L2_FIELD_INTERLACED:
746 	case V4L2_FIELD_SEQ_BT:
747 	case V4L2_FIELD_SEQ_TB:
748 		break;
749 	default:
750 		field = (f->fmt.pix.height > maxh / 2)
751 			? V4L2_FIELD_INTERLACED
752 			: V4L2_FIELD_BOTTOM;
753 		break;
754 	}
755 	if (V4L2_FIELD_HAS_T_OR_B(field))
756 		maxh /= 2;
757 
758 	v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
759 			      &f->fmt.pix.height, 32, maxh, 0, 0);
760 	f->fmt.pix.field = field;
761 	f->fmt.pix.bytesperline =
762 		(f->fmt.pix.width * fmt->depth) >> 3;
763 	f->fmt.pix.sizeimage =
764 		f->fmt.pix.height * f->fmt.pix.bytesperline;
765 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
766 
767 	return 0;
768 }
769 
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)770 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
771 				struct v4l2_format *f)
772 {
773 	struct cx8800_dev *dev = video_drvdata(file);
774 	struct cx88_core *core = dev->core;
775 	int err = vidioc_try_fmt_vid_cap(file, priv, f);
776 
777 	if (err != 0)
778 		return err;
779 	if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq))
780 		return -EBUSY;
781 	if (core->dvbdev && vb2_is_busy(&core->dvbdev->vb2_mpegq))
782 		return -EBUSY;
783 	dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
784 	core->width = f->fmt.pix.width;
785 	core->height = f->fmt.pix.height;
786 	core->field = f->fmt.pix.field;
787 	return 0;
788 }
789 
cx88_querycap(struct file * file,struct cx88_core * core,struct v4l2_capability * cap)790 int cx88_querycap(struct file *file, struct cx88_core *core,
791 		  struct v4l2_capability *cap)
792 {
793 	strscpy(cap->card, core->board.name, sizeof(cap->card));
794 	cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
795 			    V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE |
796 			    V4L2_CAP_DEVICE_CAPS;
797 	if (core->board.tuner_type != UNSET)
798 		cap->capabilities |= V4L2_CAP_TUNER;
799 	if (core->board.radio.type == CX88_RADIO)
800 		cap->capabilities |= V4L2_CAP_RADIO;
801 	return 0;
802 }
803 EXPORT_SYMBOL(cx88_querycap);
804 
vidioc_querycap(struct file * file,void * priv,struct v4l2_capability * cap)805 static int vidioc_querycap(struct file *file, void  *priv,
806 			   struct v4l2_capability *cap)
807 {
808 	struct cx8800_dev *dev = video_drvdata(file);
809 	struct cx88_core *core = dev->core;
810 
811 	strscpy(cap->driver, "cx8800", sizeof(cap->driver));
812 	return cx88_querycap(file, core, cap);
813 }
814 
vidioc_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)815 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
816 				   struct v4l2_fmtdesc *f)
817 {
818 	if (unlikely(f->index >= ARRAY_SIZE(formats)))
819 		return -EINVAL;
820 
821 	f->pixelformat = formats[f->index].fourcc;
822 
823 	return 0;
824 }
825 
vidioc_g_std(struct file * file,void * priv,v4l2_std_id * tvnorm)826 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorm)
827 {
828 	struct cx8800_dev *dev = video_drvdata(file);
829 	struct cx88_core *core = dev->core;
830 
831 	*tvnorm = core->tvnorm;
832 	return 0;
833 }
834 
vidioc_s_std(struct file * file,void * priv,v4l2_std_id tvnorms)835 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms)
836 {
837 	struct cx8800_dev *dev = video_drvdata(file);
838 	struct cx88_core *core = dev->core;
839 
840 	return cx88_set_tvnorm(core, tvnorms);
841 }
842 
843 /* only one input in this sample driver */
cx88_enum_input(struct cx88_core * core,struct v4l2_input * i)844 int cx88_enum_input(struct cx88_core  *core, struct v4l2_input *i)
845 {
846 	static const char * const iname[] = {
847 		[CX88_VMUX_COMPOSITE1] = "Composite1",
848 		[CX88_VMUX_COMPOSITE2] = "Composite2",
849 		[CX88_VMUX_COMPOSITE3] = "Composite3",
850 		[CX88_VMUX_COMPOSITE4] = "Composite4",
851 		[CX88_VMUX_SVIDEO] = "S-Video",
852 		[CX88_VMUX_TELEVISION] = "Television",
853 		[CX88_VMUX_CABLE] = "Cable TV",
854 		[CX88_VMUX_DVB] = "DVB",
855 		[CX88_VMUX_DEBUG] = "for debug only",
856 	};
857 	unsigned int n = i->index;
858 
859 	if (n >= 4)
860 		return -EINVAL;
861 	if (!INPUT(n).type)
862 		return -EINVAL;
863 	i->type  = V4L2_INPUT_TYPE_CAMERA;
864 	strscpy(i->name, iname[INPUT(n).type], sizeof(i->name));
865 	if ((INPUT(n).type == CX88_VMUX_TELEVISION) ||
866 	    (INPUT(n).type == CX88_VMUX_CABLE))
867 		i->type = V4L2_INPUT_TYPE_TUNER;
868 
869 	i->std = CX88_NORMS;
870 	return 0;
871 }
872 EXPORT_SYMBOL(cx88_enum_input);
873 
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * i)874 static int vidioc_enum_input(struct file *file, void *priv,
875 			     struct v4l2_input *i)
876 {
877 	struct cx8800_dev *dev = video_drvdata(file);
878 	struct cx88_core *core = dev->core;
879 
880 	return cx88_enum_input(core, i);
881 }
882 
vidioc_g_input(struct file * file,void * priv,unsigned int * i)883 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
884 {
885 	struct cx8800_dev *dev = video_drvdata(file);
886 	struct cx88_core *core = dev->core;
887 
888 	*i = core->input;
889 	return 0;
890 }
891 
vidioc_s_input(struct file * file,void * priv,unsigned int i)892 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
893 {
894 	struct cx8800_dev *dev = video_drvdata(file);
895 	struct cx88_core *core = dev->core;
896 
897 	if (i >= 4)
898 		return -EINVAL;
899 	if (!INPUT(i).type)
900 		return -EINVAL;
901 
902 	cx88_newstation(core);
903 	cx88_video_mux(core, i);
904 	return 0;
905 }
906 
vidioc_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)907 static int vidioc_g_tuner(struct file *file, void *priv,
908 			  struct v4l2_tuner *t)
909 {
910 	struct cx8800_dev *dev = video_drvdata(file);
911 	struct cx88_core *core = dev->core;
912 	u32 reg;
913 
914 	if (unlikely(core->board.tuner_type == UNSET))
915 		return -EINVAL;
916 	if (t->index != 0)
917 		return -EINVAL;
918 
919 	strscpy(t->name, "Television", sizeof(t->name));
920 	t->capability = V4L2_TUNER_CAP_NORM;
921 	t->rangehigh  = 0xffffffffUL;
922 	call_all(core, tuner, g_tuner, t);
923 
924 	cx88_get_stereo(core, t);
925 	reg = cx_read(MO_DEVICE_STATUS);
926 	t->signal = (reg & (1 << 5)) ? 0xffff : 0x0000;
927 	return 0;
928 }
929 
vidioc_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)930 static int vidioc_s_tuner(struct file *file, void *priv,
931 			  const struct v4l2_tuner *t)
932 {
933 	struct cx8800_dev *dev = video_drvdata(file);
934 	struct cx88_core *core = dev->core;
935 
936 	if (core->board.tuner_type == UNSET)
937 		return -EINVAL;
938 	if (t->index != 0)
939 		return -EINVAL;
940 
941 	cx88_set_stereo(core, t->audmode, 1);
942 	return 0;
943 }
944 
vidioc_g_frequency(struct file * file,void * priv,struct v4l2_frequency * f)945 static int vidioc_g_frequency(struct file *file, void *priv,
946 			      struct v4l2_frequency *f)
947 {
948 	struct cx8800_dev *dev = video_drvdata(file);
949 	struct cx88_core *core = dev->core;
950 
951 	if (unlikely(core->board.tuner_type == UNSET))
952 		return -EINVAL;
953 	if (f->tuner)
954 		return -EINVAL;
955 
956 	f->frequency = core->freq;
957 
958 	call_all(core, tuner, g_frequency, f);
959 
960 	return 0;
961 }
962 
cx88_set_freq(struct cx88_core * core,const struct v4l2_frequency * f)963 int cx88_set_freq(struct cx88_core  *core,
964 		  const struct v4l2_frequency *f)
965 {
966 	struct v4l2_frequency new_freq = *f;
967 
968 	if (unlikely(core->board.tuner_type == UNSET))
969 		return -EINVAL;
970 	if (unlikely(f->tuner != 0))
971 		return -EINVAL;
972 
973 	cx88_newstation(core);
974 	call_all(core, tuner, s_frequency, f);
975 	call_all(core, tuner, g_frequency, &new_freq);
976 	core->freq = new_freq.frequency;
977 
978 	/* When changing channels it is required to reset TVAUDIO */
979 	usleep_range(10000, 20000);
980 	cx88_set_tvaudio(core);
981 
982 	return 0;
983 }
984 EXPORT_SYMBOL(cx88_set_freq);
985 
vidioc_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * f)986 static int vidioc_s_frequency(struct file *file, void *priv,
987 			      const struct v4l2_frequency *f)
988 {
989 	struct cx8800_dev *dev = video_drvdata(file);
990 	struct cx88_core *core = dev->core;
991 
992 	return cx88_set_freq(core, f);
993 }
994 
995 #ifdef CONFIG_VIDEO_ADV_DEBUG
vidioc_g_register(struct file * file,void * fh,struct v4l2_dbg_register * reg)996 static int vidioc_g_register(struct file *file, void *fh,
997 			     struct v4l2_dbg_register *reg)
998 {
999 	struct cx8800_dev *dev = video_drvdata(file);
1000 	struct cx88_core *core = dev->core;
1001 
1002 	/* cx2388x has a 24-bit register space */
1003 	reg->val = cx_read(reg->reg & 0xfffffc);
1004 	reg->size = 4;
1005 	return 0;
1006 }
1007 
vidioc_s_register(struct file * file,void * fh,const struct v4l2_dbg_register * reg)1008 static int vidioc_s_register(struct file *file, void *fh,
1009 			     const struct v4l2_dbg_register *reg)
1010 {
1011 	struct cx8800_dev *dev = video_drvdata(file);
1012 	struct cx88_core *core = dev->core;
1013 
1014 	cx_write(reg->reg & 0xfffffc, reg->val);
1015 	return 0;
1016 }
1017 #endif
1018 
1019 /* ----------------------------------------------------------- */
1020 /* RADIO ESPECIFIC IOCTLS                                      */
1021 /* ----------------------------------------------------------- */
1022 
radio_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1023 static int radio_g_tuner(struct file *file, void *priv,
1024 			 struct v4l2_tuner *t)
1025 {
1026 	struct cx8800_dev *dev = video_drvdata(file);
1027 	struct cx88_core *core = dev->core;
1028 
1029 	if (unlikely(t->index > 0))
1030 		return -EINVAL;
1031 
1032 	strscpy(t->name, "Radio", sizeof(t->name));
1033 
1034 	call_all(core, tuner, g_tuner, t);
1035 	return 0;
1036 }
1037 
radio_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1038 static int radio_s_tuner(struct file *file, void *priv,
1039 			 const struct v4l2_tuner *t)
1040 {
1041 	struct cx8800_dev *dev = video_drvdata(file);
1042 	struct cx88_core *core = dev->core;
1043 
1044 	if (t->index != 0)
1045 		return -EINVAL;
1046 
1047 	call_all(core, tuner, s_tuner, t);
1048 	return 0;
1049 }
1050 
1051 /* ----------------------------------------------------------- */
1052 
1053 static const char *cx88_vid_irqs[32] = {
1054 	"y_risci1", "u_risci1", "v_risci1", "vbi_risc1",
1055 	"y_risci2", "u_risci2", "v_risci2", "vbi_risc2",
1056 	"y_oflow",  "u_oflow",  "v_oflow",  "vbi_oflow",
1057 	"y_sync",   "u_sync",   "v_sync",   "vbi_sync",
1058 	"opc_err",  "par_err",  "rip_err",  "pci_abort",
1059 };
1060 
cx8800_vid_irq(struct cx8800_dev * dev)1061 static void cx8800_vid_irq(struct cx8800_dev *dev)
1062 {
1063 	struct cx88_core *core = dev->core;
1064 	u32 status, mask, count;
1065 
1066 	status = cx_read(MO_VID_INTSTAT);
1067 	mask   = cx_read(MO_VID_INTMSK);
1068 	if (0 == (status & mask))
1069 		return;
1070 	cx_write(MO_VID_INTSTAT, status);
1071 	if (irq_debug  ||  (status & mask & ~0xff))
1072 		cx88_print_irqbits("irq vid",
1073 				   cx88_vid_irqs, ARRAY_SIZE(cx88_vid_irqs),
1074 				   status, mask);
1075 
1076 	/* risc op code error */
1077 	if (status & (1 << 16)) {
1078 		pr_warn("video risc op code error\n");
1079 		cx_clear(MO_VID_DMACNTRL, 0x11);
1080 		cx_clear(VID_CAPTURE_CONTROL, 0x06);
1081 		cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH21]);
1082 	}
1083 
1084 	/* risc1 y */
1085 	if (status & 0x01) {
1086 		spin_lock(&dev->slock);
1087 		count = cx_read(MO_VIDY_GPCNT);
1088 		cx88_wakeup(core, &dev->vidq, count);
1089 		spin_unlock(&dev->slock);
1090 	}
1091 
1092 	/* risc1 vbi */
1093 	if (status & 0x08) {
1094 		spin_lock(&dev->slock);
1095 		count = cx_read(MO_VBI_GPCNT);
1096 		cx88_wakeup(core, &dev->vbiq, count);
1097 		spin_unlock(&dev->slock);
1098 	}
1099 }
1100 
cx8800_irq(int irq,void * dev_id)1101 static irqreturn_t cx8800_irq(int irq, void *dev_id)
1102 {
1103 	struct cx8800_dev *dev = dev_id;
1104 	struct cx88_core *core = dev->core;
1105 	u32 status;
1106 	int loop, handled = 0;
1107 
1108 	for (loop = 0; loop < 10; loop++) {
1109 		status = cx_read(MO_PCI_INTSTAT) &
1110 			(core->pci_irqmask | PCI_INT_VIDINT);
1111 		if (status == 0)
1112 			goto out;
1113 		cx_write(MO_PCI_INTSTAT, status);
1114 		handled = 1;
1115 
1116 		if (status & core->pci_irqmask)
1117 			cx88_core_irq(core, status);
1118 		if (status & PCI_INT_VIDINT)
1119 			cx8800_vid_irq(dev);
1120 	}
1121 	if (loop == 10) {
1122 		pr_warn("irq loop -- clearing mask\n");
1123 		cx_write(MO_PCI_INTMSK, 0);
1124 	}
1125 
1126  out:
1127 	return IRQ_RETVAL(handled);
1128 }
1129 
1130 /* ----------------------------------------------------------- */
1131 /* exported stuff                                              */
1132 
1133 static const struct v4l2_file_operations video_fops = {
1134 	.owner	       = THIS_MODULE,
1135 	.open	       = v4l2_fh_open,
1136 	.release       = vb2_fop_release,
1137 	.read	       = vb2_fop_read,
1138 	.poll          = vb2_fop_poll,
1139 	.mmap	       = vb2_fop_mmap,
1140 	.unlocked_ioctl = video_ioctl2,
1141 };
1142 
1143 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1144 	.vidioc_querycap      = vidioc_querycap,
1145 	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1146 	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1147 	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1148 	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1149 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
1150 	.vidioc_querybuf      = vb2_ioctl_querybuf,
1151 	.vidioc_qbuf          = vb2_ioctl_qbuf,
1152 	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
1153 	.vidioc_g_std         = vidioc_g_std,
1154 	.vidioc_s_std         = vidioc_s_std,
1155 	.vidioc_enum_input    = vidioc_enum_input,
1156 	.vidioc_g_input       = vidioc_g_input,
1157 	.vidioc_s_input       = vidioc_s_input,
1158 	.vidioc_streamon      = vb2_ioctl_streamon,
1159 	.vidioc_streamoff     = vb2_ioctl_streamoff,
1160 	.vidioc_g_tuner       = vidioc_g_tuner,
1161 	.vidioc_s_tuner       = vidioc_s_tuner,
1162 	.vidioc_g_frequency   = vidioc_g_frequency,
1163 	.vidioc_s_frequency   = vidioc_s_frequency,
1164 	.vidioc_subscribe_event      = v4l2_ctrl_subscribe_event,
1165 	.vidioc_unsubscribe_event    = v4l2_event_unsubscribe,
1166 #ifdef CONFIG_VIDEO_ADV_DEBUG
1167 	.vidioc_g_register    = vidioc_g_register,
1168 	.vidioc_s_register    = vidioc_s_register,
1169 #endif
1170 };
1171 
1172 static const struct video_device cx8800_video_template = {
1173 	.name                 = "cx8800-video",
1174 	.fops                 = &video_fops,
1175 	.ioctl_ops	      = &video_ioctl_ops,
1176 	.tvnorms              = CX88_NORMS,
1177 };
1178 
1179 static const struct v4l2_ioctl_ops vbi_ioctl_ops = {
1180 	.vidioc_querycap      = vidioc_querycap,
1181 	.vidioc_g_fmt_vbi_cap     = cx8800_vbi_fmt,
1182 	.vidioc_try_fmt_vbi_cap   = cx8800_vbi_fmt,
1183 	.vidioc_s_fmt_vbi_cap     = cx8800_vbi_fmt,
1184 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
1185 	.vidioc_querybuf      = vb2_ioctl_querybuf,
1186 	.vidioc_qbuf          = vb2_ioctl_qbuf,
1187 	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
1188 	.vidioc_g_std         = vidioc_g_std,
1189 	.vidioc_s_std         = vidioc_s_std,
1190 	.vidioc_enum_input    = vidioc_enum_input,
1191 	.vidioc_g_input       = vidioc_g_input,
1192 	.vidioc_s_input       = vidioc_s_input,
1193 	.vidioc_streamon      = vb2_ioctl_streamon,
1194 	.vidioc_streamoff     = vb2_ioctl_streamoff,
1195 	.vidioc_g_tuner       = vidioc_g_tuner,
1196 	.vidioc_s_tuner       = vidioc_s_tuner,
1197 	.vidioc_g_frequency   = vidioc_g_frequency,
1198 	.vidioc_s_frequency   = vidioc_s_frequency,
1199 #ifdef CONFIG_VIDEO_ADV_DEBUG
1200 	.vidioc_g_register    = vidioc_g_register,
1201 	.vidioc_s_register    = vidioc_s_register,
1202 #endif
1203 };
1204 
1205 static const struct video_device cx8800_vbi_template = {
1206 	.name                 = "cx8800-vbi",
1207 	.fops                 = &video_fops,
1208 	.ioctl_ops	      = &vbi_ioctl_ops,
1209 	.tvnorms              = CX88_NORMS,
1210 };
1211 
1212 static const struct v4l2_file_operations radio_fops = {
1213 	.owner         = THIS_MODULE,
1214 	.open          = radio_open,
1215 	.poll          = v4l2_ctrl_poll,
1216 	.release       = v4l2_fh_release,
1217 	.unlocked_ioctl = video_ioctl2,
1218 };
1219 
1220 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1221 	.vidioc_querycap      = vidioc_querycap,
1222 	.vidioc_g_tuner       = radio_g_tuner,
1223 	.vidioc_s_tuner       = radio_s_tuner,
1224 	.vidioc_g_frequency   = vidioc_g_frequency,
1225 	.vidioc_s_frequency   = vidioc_s_frequency,
1226 	.vidioc_subscribe_event      = v4l2_ctrl_subscribe_event,
1227 	.vidioc_unsubscribe_event    = v4l2_event_unsubscribe,
1228 #ifdef CONFIG_VIDEO_ADV_DEBUG
1229 	.vidioc_g_register    = vidioc_g_register,
1230 	.vidioc_s_register    = vidioc_s_register,
1231 #endif
1232 };
1233 
1234 static const struct video_device cx8800_radio_template = {
1235 	.name                 = "cx8800-radio",
1236 	.fops                 = &radio_fops,
1237 	.ioctl_ops	      = &radio_ioctl_ops,
1238 };
1239 
1240 static const struct v4l2_ctrl_ops cx8800_ctrl_vid_ops = {
1241 	.s_ctrl = cx8800_s_vid_ctrl,
1242 };
1243 
1244 static const struct v4l2_ctrl_ops cx8800_ctrl_aud_ops = {
1245 	.s_ctrl = cx8800_s_aud_ctrl,
1246 };
1247 
1248 /* ----------------------------------------------------------- */
1249 
cx8800_unregister_video(struct cx8800_dev * dev)1250 static void cx8800_unregister_video(struct cx8800_dev *dev)
1251 {
1252 	video_unregister_device(&dev->radio_dev);
1253 	video_unregister_device(&dev->vbi_dev);
1254 	video_unregister_device(&dev->video_dev);
1255 }
1256 
cx8800_initdev(struct pci_dev * pci_dev,const struct pci_device_id * pci_id)1257 static int cx8800_initdev(struct pci_dev *pci_dev,
1258 			  const struct pci_device_id *pci_id)
1259 {
1260 	struct cx8800_dev *dev;
1261 	struct cx88_core *core;
1262 	struct vb2_queue *q;
1263 	int err;
1264 	int i;
1265 
1266 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1267 	if (!dev)
1268 		return -ENOMEM;
1269 
1270 	/* pci init */
1271 	dev->pci = pci_dev;
1272 	if (pci_enable_device(pci_dev)) {
1273 		err = -EIO;
1274 		goto fail_free;
1275 	}
1276 	core = cx88_core_get(dev->pci);
1277 	if (!core) {
1278 		err = -EINVAL;
1279 		goto fail_disable;
1280 	}
1281 	dev->core = core;
1282 
1283 	/* print pci info */
1284 	dev->pci_rev = pci_dev->revision;
1285 	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1286 	pr_info("found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1287 		pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1288 		dev->pci_lat,
1289 		(unsigned long long)pci_resource_start(pci_dev, 0));
1290 
1291 	pci_set_master(pci_dev);
1292 	err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
1293 	if (err) {
1294 		pr_err("Oops: no 32bit PCI DMA ???\n");
1295 		goto fail_core;
1296 	}
1297 
1298 	/* initialize driver struct */
1299 	spin_lock_init(&dev->slock);
1300 
1301 	/* init video dma queues */
1302 	INIT_LIST_HEAD(&dev->vidq.active);
1303 
1304 	/* init vbi dma queues */
1305 	INIT_LIST_HEAD(&dev->vbiq.active);
1306 
1307 	/* get irq */
1308 	err = request_irq(pci_dev->irq, cx8800_irq,
1309 			  IRQF_SHARED, core->name, dev);
1310 	if (err < 0) {
1311 		pr_err("can't get IRQ %d\n", pci_dev->irq);
1312 		goto fail_core;
1313 	}
1314 	cx_set(MO_PCI_INTMSK, core->pci_irqmask);
1315 
1316 	for (i = 0; i < CX8800_AUD_CTLS; i++) {
1317 		const struct cx88_ctrl *cc = &cx8800_aud_ctls[i];
1318 		struct v4l2_ctrl *vc;
1319 
1320 		vc = v4l2_ctrl_new_std(&core->audio_hdl, &cx8800_ctrl_aud_ops,
1321 				       cc->id, cc->minimum, cc->maximum,
1322 				       cc->step, cc->default_value);
1323 		if (!vc) {
1324 			err = core->audio_hdl.error;
1325 			goto fail_irq;
1326 		}
1327 		vc->priv = (void *)cc;
1328 	}
1329 
1330 	for (i = 0; i < CX8800_VID_CTLS; i++) {
1331 		const struct cx88_ctrl *cc = &cx8800_vid_ctls[i];
1332 		struct v4l2_ctrl *vc;
1333 
1334 		vc = v4l2_ctrl_new_std(&core->video_hdl, &cx8800_ctrl_vid_ops,
1335 				       cc->id, cc->minimum, cc->maximum,
1336 				       cc->step, cc->default_value);
1337 		if (!vc) {
1338 			err = core->video_hdl.error;
1339 			goto fail_irq;
1340 		}
1341 		vc->priv = (void *)cc;
1342 		if (vc->id == V4L2_CID_CHROMA_AGC)
1343 			core->chroma_agc = vc;
1344 	}
1345 	v4l2_ctrl_add_handler(&core->video_hdl, &core->audio_hdl, NULL, false);
1346 
1347 	/* load and configure helper modules */
1348 
1349 	if (core->board.audio_chip == CX88_AUDIO_WM8775) {
1350 		struct i2c_board_info wm8775_info = {
1351 			.type = "wm8775",
1352 			.addr = 0x36 >> 1,
1353 			.platform_data = &core->wm8775_data,
1354 		};
1355 		struct v4l2_subdev *sd;
1356 
1357 		if (core->boardnr == CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1)
1358 			core->wm8775_data.is_nova_s = true;
1359 		else
1360 			core->wm8775_data.is_nova_s = false;
1361 
1362 		sd = v4l2_i2c_new_subdev_board(&core->v4l2_dev, &core->i2c_adap,
1363 					       &wm8775_info, NULL);
1364 		if (sd) {
1365 			core->sd_wm8775 = sd;
1366 			sd->grp_id = WM8775_GID;
1367 		}
1368 	}
1369 
1370 	if (core->board.audio_chip == CX88_AUDIO_TVAUDIO) {
1371 		/*
1372 		 * This probes for a tda9874 as is used on some
1373 		 * Pixelview Ultra boards.
1374 		 */
1375 		v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
1376 				    "tvaudio", 0, I2C_ADDRS(0xb0 >> 1));
1377 	}
1378 
1379 	switch (core->boardnr) {
1380 	case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
1381 	case CX88_BOARD_DVICO_FUSIONHDTV_7_GOLD: {
1382 		static const struct i2c_board_info rtc_info = {
1383 			I2C_BOARD_INFO("isl1208", 0x6f)
1384 		};
1385 
1386 		request_module("rtc-isl1208");
1387 		core->i2c_rtc = i2c_new_client_device(&core->i2c_adap, &rtc_info);
1388 	}
1389 		fallthrough;
1390 	case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO:
1391 	case CX88_BOARD_NOTONLYTV_LV3H:
1392 		request_module("ir-kbd-i2c");
1393 	}
1394 
1395 	/* Sets device info at pci_dev */
1396 	pci_set_drvdata(pci_dev, dev);
1397 
1398 	dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
1399 
1400 	/* Maintain a reference so cx88-blackbird can query the 8800 device. */
1401 	core->v4ldev = dev;
1402 
1403 	/* initial device configuration */
1404 	mutex_lock(&core->lock);
1405 	cx88_set_tvnorm(core, V4L2_STD_NTSC_M);
1406 	v4l2_ctrl_handler_setup(&core->video_hdl);
1407 	v4l2_ctrl_handler_setup(&core->audio_hdl);
1408 	cx88_video_mux(core, 0);
1409 
1410 	q = &dev->vb2_vidq;
1411 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1412 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1413 	q->gfp_flags = GFP_DMA32;
1414 	q->min_buffers_needed = 2;
1415 	q->drv_priv = dev;
1416 	q->buf_struct_size = sizeof(struct cx88_buffer);
1417 	q->ops = &cx8800_video_qops;
1418 	q->mem_ops = &vb2_dma_sg_memops;
1419 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1420 	q->lock = &core->lock;
1421 	q->dev = &dev->pci->dev;
1422 
1423 	err = vb2_queue_init(q);
1424 	if (err < 0)
1425 		goto fail_unreg;
1426 
1427 	q = &dev->vb2_vbiq;
1428 	q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1429 	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
1430 	q->gfp_flags = GFP_DMA32;
1431 	q->min_buffers_needed = 2;
1432 	q->drv_priv = dev;
1433 	q->buf_struct_size = sizeof(struct cx88_buffer);
1434 	q->ops = &cx8800_vbi_qops;
1435 	q->mem_ops = &vb2_dma_sg_memops;
1436 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1437 	q->lock = &core->lock;
1438 	q->dev = &dev->pci->dev;
1439 
1440 	err = vb2_queue_init(q);
1441 	if (err < 0)
1442 		goto fail_unreg;
1443 
1444 	/* register v4l devices */
1445 	cx88_vdev_init(core, dev->pci, &dev->video_dev,
1446 		       &cx8800_video_template, "video");
1447 	video_set_drvdata(&dev->video_dev, dev);
1448 	dev->video_dev.ctrl_handler = &core->video_hdl;
1449 	dev->video_dev.queue = &dev->vb2_vidq;
1450 	dev->video_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1451 				     V4L2_CAP_VIDEO_CAPTURE;
1452 	if (core->board.tuner_type != UNSET)
1453 		dev->video_dev.device_caps |= V4L2_CAP_TUNER;
1454 	err = video_register_device(&dev->video_dev, VFL_TYPE_VIDEO,
1455 				    video_nr[core->nr]);
1456 	if (err < 0) {
1457 		pr_err("can't register video device\n");
1458 		goto fail_unreg;
1459 	}
1460 	pr_info("registered device %s [v4l2]\n",
1461 		video_device_node_name(&dev->video_dev));
1462 
1463 	cx88_vdev_init(core, dev->pci, &dev->vbi_dev,
1464 		       &cx8800_vbi_template, "vbi");
1465 	video_set_drvdata(&dev->vbi_dev, dev);
1466 	dev->vbi_dev.queue = &dev->vb2_vbiq;
1467 	dev->vbi_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1468 				   V4L2_CAP_VBI_CAPTURE;
1469 	if (core->board.tuner_type != UNSET)
1470 		dev->vbi_dev.device_caps |= V4L2_CAP_TUNER;
1471 	err = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI,
1472 				    vbi_nr[core->nr]);
1473 	if (err < 0) {
1474 		pr_err("can't register vbi device\n");
1475 		goto fail_unreg;
1476 	}
1477 	pr_info("registered device %s\n",
1478 		video_device_node_name(&dev->vbi_dev));
1479 
1480 	if (core->board.radio.type == CX88_RADIO) {
1481 		cx88_vdev_init(core, dev->pci, &dev->radio_dev,
1482 			       &cx8800_radio_template, "radio");
1483 		video_set_drvdata(&dev->radio_dev, dev);
1484 		dev->radio_dev.ctrl_handler = &core->audio_hdl;
1485 		dev->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1486 		err = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
1487 					    radio_nr[core->nr]);
1488 		if (err < 0) {
1489 			pr_err("can't register radio device\n");
1490 			goto fail_unreg;
1491 		}
1492 		pr_info("registered device %s\n",
1493 			video_device_node_name(&dev->radio_dev));
1494 	}
1495 
1496 	/* start tvaudio thread */
1497 	if (core->board.tuner_type != UNSET) {
1498 		core->kthread = kthread_run(cx88_audio_thread,
1499 					    core, "cx88 tvaudio");
1500 		if (IS_ERR(core->kthread)) {
1501 			err = PTR_ERR(core->kthread);
1502 			pr_err("failed to create cx88 audio thread, err=%d\n",
1503 			       err);
1504 		}
1505 	}
1506 	mutex_unlock(&core->lock);
1507 
1508 	return 0;
1509 
1510 fail_unreg:
1511 	cx8800_unregister_video(dev);
1512 	mutex_unlock(&core->lock);
1513 fail_irq:
1514 	free_irq(pci_dev->irq, dev);
1515 fail_core:
1516 	core->v4ldev = NULL;
1517 	cx88_core_put(core, dev->pci);
1518 fail_disable:
1519 	pci_disable_device(pci_dev);
1520 fail_free:
1521 	kfree(dev);
1522 	return err;
1523 }
1524 
cx8800_finidev(struct pci_dev * pci_dev)1525 static void cx8800_finidev(struct pci_dev *pci_dev)
1526 {
1527 	struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
1528 	struct cx88_core *core = dev->core;
1529 
1530 	/* stop thread */
1531 	if (core->kthread) {
1532 		kthread_stop(core->kthread);
1533 		core->kthread = NULL;
1534 	}
1535 
1536 	if (core->ir)
1537 		cx88_ir_stop(core);
1538 
1539 	cx88_shutdown(core); /* FIXME */
1540 
1541 	/* unregister stuff */
1542 
1543 	free_irq(pci_dev->irq, dev);
1544 	cx8800_unregister_video(dev);
1545 	pci_disable_device(pci_dev);
1546 
1547 	core->v4ldev = NULL;
1548 
1549 	/* free memory */
1550 	cx88_core_put(core, dev->pci);
1551 	kfree(dev);
1552 }
1553 
cx8800_suspend(struct device * dev_d)1554 static int __maybe_unused cx8800_suspend(struct device *dev_d)
1555 {
1556 	struct cx8800_dev *dev = dev_get_drvdata(dev_d);
1557 	struct cx88_core *core = dev->core;
1558 	unsigned long flags;
1559 
1560 	/* stop video+vbi capture */
1561 	spin_lock_irqsave(&dev->slock, flags);
1562 	if (!list_empty(&dev->vidq.active)) {
1563 		pr_info("suspend video\n");
1564 		stop_video_dma(dev);
1565 	}
1566 	if (!list_empty(&dev->vbiq.active)) {
1567 		pr_info("suspend vbi\n");
1568 		cx8800_stop_vbi_dma(dev);
1569 	}
1570 	spin_unlock_irqrestore(&dev->slock, flags);
1571 
1572 	if (core->ir)
1573 		cx88_ir_stop(core);
1574 	/* FIXME -- shutdown device */
1575 	cx88_shutdown(core);
1576 
1577 	dev->state.disabled = 1;
1578 	return 0;
1579 }
1580 
cx8800_resume(struct device * dev_d)1581 static int __maybe_unused cx8800_resume(struct device *dev_d)
1582 {
1583 	struct cx8800_dev *dev = dev_get_drvdata(dev_d);
1584 	struct cx88_core *core = dev->core;
1585 	unsigned long flags;
1586 
1587 	dev->state.disabled = 0;
1588 
1589 	/* FIXME: re-initialize hardware */
1590 	cx88_reset(core);
1591 	if (core->ir)
1592 		cx88_ir_start(core);
1593 
1594 	cx_set(MO_PCI_INTMSK, core->pci_irqmask);
1595 
1596 	/* restart video+vbi capture */
1597 	spin_lock_irqsave(&dev->slock, flags);
1598 	if (!list_empty(&dev->vidq.active)) {
1599 		pr_info("resume video\n");
1600 		restart_video_queue(dev, &dev->vidq);
1601 	}
1602 	if (!list_empty(&dev->vbiq.active)) {
1603 		pr_info("resume vbi\n");
1604 		cx8800_restart_vbi_queue(dev, &dev->vbiq);
1605 	}
1606 	spin_unlock_irqrestore(&dev->slock, flags);
1607 
1608 	return 0;
1609 }
1610 
1611 /* ----------------------------------------------------------- */
1612 
1613 static const struct pci_device_id cx8800_pci_tbl[] = {
1614 	{
1615 		.vendor       = 0x14f1,
1616 		.device       = 0x8800,
1617 		.subvendor    = PCI_ANY_ID,
1618 		.subdevice    = PCI_ANY_ID,
1619 	}, {
1620 		/* --- end of list --- */
1621 	}
1622 };
1623 MODULE_DEVICE_TABLE(pci, cx8800_pci_tbl);
1624 
1625 static SIMPLE_DEV_PM_OPS(cx8800_pm_ops, cx8800_suspend, cx8800_resume);
1626 
1627 static struct pci_driver cx8800_pci_driver = {
1628 	.name      = "cx8800",
1629 	.id_table  = cx8800_pci_tbl,
1630 	.probe     = cx8800_initdev,
1631 	.remove    = cx8800_finidev,
1632 	.driver.pm = &cx8800_pm_ops,
1633 };
1634 
1635 module_pci_driver(cx8800_pci_driver);
1636