xref: /openbmc/linux/drivers/media/i2c/tvp5150.c (revision 26ce7054)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
4 //
5 // Copyright (c) 2005,2006 Mauro Carvalho Chehab <mchehab@kernel.org>
6 
7 #include <dt-bindings/media/tvp5150.h>
8 #include <linux/i2c.h>
9 #include <linux/slab.h>
10 #include <linux/videodev2.h>
11 #include <linux/delay.h>
12 #include <linux/gpio/consumer.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/of_graph.h>
16 #include <linux/pm_runtime.h>
17 #include <linux/regmap.h>
18 #include <media/v4l2-async.h>
19 #include <media/v4l2-device.h>
20 #include <media/v4l2-event.h>
21 #include <media/v4l2-ctrls.h>
22 #include <media/v4l2-fwnode.h>
23 #include <media/v4l2-mc.h>
24 #include <media/v4l2-rect.h>
25 
26 #include "tvp5150_reg.h"
27 
28 #define TVP5150_H_MAX		720U
29 #define TVP5150_V_MAX_525_60	480U
30 #define TVP5150_V_MAX_OTHERS	576U
31 #define TVP5150_MAX_CROP_LEFT	511
32 #define TVP5150_MAX_CROP_TOP	127
33 #define TVP5150_CROP_SHIFT	2
34 #define TVP5150_MBUS_FMT	MEDIA_BUS_FMT_UYVY8_2X8
35 #define TVP5150_FIELD		V4L2_FIELD_ALTERNATE
36 #define TVP5150_COLORSPACE	V4L2_COLORSPACE_SMPTE170M
37 #define TVP5150_STD_MASK	(V4L2_STD_NTSC     | \
38 				 V4L2_STD_NTSC_443 | \
39 				 V4L2_STD_PAL      | \
40 				 V4L2_STD_PAL_M    | \
41 				 V4L2_STD_PAL_N    | \
42 				 V4L2_STD_PAL_Nc   | \
43 				 V4L2_STD_SECAM)
44 
45 #define TVP5150_MAX_CONNECTORS	3 /* Check dt-bindings for more information */
46 
47 MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
48 MODULE_AUTHOR("Mauro Carvalho Chehab");
49 MODULE_LICENSE("GPL v2");
50 
51 
52 static int debug;
53 module_param(debug, int, 0644);
54 MODULE_PARM_DESC(debug, "Debug level (0-2)");
55 
56 #define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
57 
58 enum tvp5150_pads {
59 	TVP5150_PAD_AIP1A,
60 	TVP5150_PAD_AIP1B,
61 	TVP5150_PAD_VID_OUT,
62 	TVP5150_NUM_PADS
63 };
64 
65 struct tvp5150_connector {
66 	struct v4l2_fwnode_connector base;
67 	struct media_entity ent;
68 	struct media_pad pad;
69 };
70 
71 struct tvp5150 {
72 	struct v4l2_subdev sd;
73 
74 	struct media_pad pads[TVP5150_NUM_PADS];
75 	struct tvp5150_connector connectors[TVP5150_MAX_CONNECTORS];
76 	struct tvp5150_connector *cur_connector;
77 	unsigned int connectors_num;
78 
79 	struct v4l2_ctrl_handler hdl;
80 	struct v4l2_rect rect;
81 	struct regmap *regmap;
82 	int irq;
83 
84 	v4l2_std_id norm;	/* Current set standard */
85 	v4l2_std_id detected_norm;
86 	u32 input;
87 	u32 output;
88 	u32 oe;
89 	int enable;
90 	bool lock;
91 
92 	u16 dev_id;
93 	u16 rom_ver;
94 
95 	enum v4l2_mbus_type mbus_type;
96 };
97 
to_tvp5150(struct v4l2_subdev * sd)98 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
99 {
100 	return container_of(sd, struct tvp5150, sd);
101 }
102 
to_sd(struct v4l2_ctrl * ctrl)103 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
104 {
105 	return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
106 }
107 
tvp5150_read(struct v4l2_subdev * sd,unsigned char addr)108 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
109 {
110 	struct tvp5150 *decoder = to_tvp5150(sd);
111 	int ret, val;
112 
113 	ret = regmap_read(decoder->regmap, addr, &val);
114 	if (ret < 0)
115 		return ret;
116 
117 	return val;
118 }
119 
dump_reg_range(struct v4l2_subdev * sd,char * s,u8 init,const u8 end,int max_line)120 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
121 				const u8 end, int max_line)
122 {
123 	u8 buf[16];
124 	int i = 0, j, len;
125 
126 	if (max_line > 16) {
127 		dprintk0(sd->dev, "too much data to dump\n");
128 		return;
129 	}
130 
131 	for (i = init; i < end; i += max_line) {
132 		len = (end - i > max_line) ? max_line : end - i;
133 
134 		for (j = 0; j < len; j++)
135 			buf[j] = tvp5150_read(sd, i + j);
136 
137 		dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
138 	}
139 }
140 
tvp5150_log_status(struct v4l2_subdev * sd)141 static int tvp5150_log_status(struct v4l2_subdev *sd)
142 {
143 	dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
144 		tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
145 	dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
146 		tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
147 	dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
148 		tvp5150_read(sd, TVP5150_OP_MODE_CTL));
149 	dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
150 		tvp5150_read(sd, TVP5150_MISC_CTL));
151 	dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
152 		tvp5150_read(sd, TVP5150_AUTOSW_MSK));
153 	dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
154 		tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
155 	dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
156 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
157 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
158 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
159 	dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
160 		tvp5150_read(sd, TVP5150_BRIGHT_CTL));
161 	dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
162 		tvp5150_read(sd, TVP5150_SATURATION_CTL));
163 	dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
164 		tvp5150_read(sd, TVP5150_HUE_CTL));
165 	dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
166 		tvp5150_read(sd, TVP5150_CONTRAST_CTL));
167 	dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
168 		tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
169 	dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
170 		tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
171 	dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
172 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
173 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
174 	dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
175 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
176 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
177 	dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
178 		tvp5150_read(sd, TVP5150_GENLOCK));
179 	dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
180 		tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
181 	dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
182 		tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
183 	dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
184 		tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
185 	dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
186 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
187 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
188 	dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
189 		tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
190 	dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
191 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
192 	dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
193 		tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
194 	dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
195 		tvp5150_read(sd, TVP5150_VIDEO_STD));
196 	dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
197 		tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
198 		tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
199 	dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
200 		tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
201 	dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
202 		tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
203 	dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
204 		(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
205 	dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
206 		tvp5150_read(sd, TVP5150_MSB_DEV_ID),
207 		tvp5150_read(sd, TVP5150_LSB_DEV_ID));
208 	dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
209 		tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
210 		tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
211 	dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
212 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
213 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
214 	dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
215 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
216 	dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
217 		tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
218 	dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
219 		tvp5150_read(sd, TVP5150_STATUS_REG_1),
220 		tvp5150_read(sd, TVP5150_STATUS_REG_2),
221 		tvp5150_read(sd, TVP5150_STATUS_REG_3),
222 		tvp5150_read(sd, TVP5150_STATUS_REG_4),
223 		tvp5150_read(sd, TVP5150_STATUS_REG_5));
224 
225 	dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
226 			TVP5150_TELETEXT_FIL1_END, 8);
227 	dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
228 			TVP5150_TELETEXT_FIL2_END, 8);
229 
230 	dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
231 		tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
232 	dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
233 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
234 	dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
235 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
236 	dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
237 		tvp5150_read(sd, TVP5150_INT_CONF));
238 	dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
239 		tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
240 	dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
241 		tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
242 	dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
243 		tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
244 	dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
245 		tvp5150_read(sd, TVP5150_FIFO_RESET));
246 	dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
247 		tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
248 	dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
249 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
250 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
251 	dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
252 		tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
253 	dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
254 		tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
255 	dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
256 		tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
257 
258 	dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
259 			TVP5150_CC_DATA_END, 8);
260 
261 	dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
262 			TVP5150_WSS_DATA_END, 8);
263 
264 	dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
265 			TVP5150_VPS_DATA_END, 8);
266 
267 	dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
268 			TVP5150_VITC_DATA_END, 10);
269 
270 	dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
271 			TVP5150_LINE_MODE_END, 8);
272 	return 0;
273 }
274 
275 /****************************************************************************
276 			Basic functions
277  ****************************************************************************/
278 
tvp5150_selmux(struct v4l2_subdev * sd)279 static void tvp5150_selmux(struct v4l2_subdev *sd)
280 {
281 	int opmode = 0;
282 	struct tvp5150 *decoder = to_tvp5150(sd);
283 	unsigned int mask, val;
284 	int input = 0;
285 
286 	/* Only tvp5150am1 and tvp5151 have signal generator support */
287 	if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
288 	    (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
289 		if (!decoder->enable)
290 			input = 8;
291 	}
292 
293 	switch (decoder->input) {
294 	case TVP5150_COMPOSITE1:
295 		input |= 2;
296 		fallthrough;
297 	case TVP5150_COMPOSITE0:
298 		break;
299 	case TVP5150_SVIDEO:
300 	default:
301 		input |= 1;
302 		break;
303 	}
304 
305 	dev_dbg_lvl(sd->dev, 1, debug,
306 		    "Selecting video route: route input=%s, output=%s => tvp5150 input=0x%02x, opmode=0x%02x\n",
307 		    decoder->input == 0 ? "aip1a" :
308 		    decoder->input == 2 ? "aip1b" : "svideo",
309 		    decoder->output == 0 ? "normal" : "black-frame-gen",
310 		    input, opmode);
311 
312 	regmap_write(decoder->regmap, TVP5150_OP_MODE_CTL, opmode);
313 	regmap_write(decoder->regmap, TVP5150_VD_IN_SRC_SEL_1, input);
314 
315 	/*
316 	 * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
317 	 * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
318 	 * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
319 	 * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
320 	 * INTREQ/GPCL/VBLK to logic 1.
321 	 */
322 	mask = TVP5150_MISC_CTL_GPCL | TVP5150_MISC_CTL_HVLK;
323 	if (decoder->input == TVP5150_SVIDEO)
324 		val = TVP5150_MISC_CTL_HVLK;
325 	else
326 		val = TVP5150_MISC_CTL_GPCL;
327 	regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
328 };
329 
330 struct i2c_reg_value {
331 	unsigned char reg;
332 	unsigned char value;
333 };
334 
335 /* Default values as sugested at TVP5150AM1 datasheet */
336 static const struct i2c_reg_value tvp5150_init_default[] = {
337 	{ /* 0x00 */
338 		TVP5150_VD_IN_SRC_SEL_1, 0x00
339 	},
340 	{ /* 0x01 */
341 		TVP5150_ANAL_CHL_CTL, 0x15
342 	},
343 	{ /* 0x02 */
344 		TVP5150_OP_MODE_CTL, 0x00
345 	},
346 	{ /* 0x03 */
347 		TVP5150_MISC_CTL, 0x01
348 	},
349 	{ /* 0x06 */
350 		TVP5150_COLOR_KIL_THSH_CTL, 0x10
351 	},
352 	{ /* 0x07 */
353 		TVP5150_LUMA_PROC_CTL_1, 0x60
354 	},
355 	{ /* 0x08 */
356 		TVP5150_LUMA_PROC_CTL_2, 0x00
357 	},
358 	{ /* 0x09 */
359 		TVP5150_BRIGHT_CTL, 0x80
360 	},
361 	{ /* 0x0a */
362 		TVP5150_SATURATION_CTL, 0x80
363 	},
364 	{ /* 0x0b */
365 		TVP5150_HUE_CTL, 0x00
366 	},
367 	{ /* 0x0c */
368 		TVP5150_CONTRAST_CTL, 0x80
369 	},
370 	{ /* 0x0d */
371 		TVP5150_DATA_RATE_SEL, 0x47
372 	},
373 	{ /* 0x0e */
374 		TVP5150_LUMA_PROC_CTL_3, 0x00
375 	},
376 	{ /* 0x0f */
377 		TVP5150_CONF_SHARED_PIN, 0x08
378 	},
379 	{ /* 0x11 */
380 		TVP5150_ACT_VD_CROP_ST_MSB, 0x00
381 	},
382 	{ /* 0x12 */
383 		TVP5150_ACT_VD_CROP_ST_LSB, 0x00
384 	},
385 	{ /* 0x13 */
386 		TVP5150_ACT_VD_CROP_STP_MSB, 0x00
387 	},
388 	{ /* 0x14 */
389 		TVP5150_ACT_VD_CROP_STP_LSB, 0x00
390 	},
391 	{ /* 0x15 */
392 		TVP5150_GENLOCK, 0x01
393 	},
394 	{ /* 0x16 */
395 		TVP5150_HORIZ_SYNC_START, 0x80
396 	},
397 	{ /* 0x18 */
398 		TVP5150_VERT_BLANKING_START, 0x00
399 	},
400 	{ /* 0x19 */
401 		TVP5150_VERT_BLANKING_STOP, 0x00
402 	},
403 	{ /* 0x1a */
404 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
405 	},
406 	{ /* 0x1b */
407 		TVP5150_CHROMA_PROC_CTL_2, 0x14
408 	},
409 	{ /* 0x1c */
410 		TVP5150_INT_RESET_REG_B, 0x00
411 	},
412 	{ /* 0x1d */
413 		TVP5150_INT_ENABLE_REG_B, 0x00
414 	},
415 	{ /* 0x1e */
416 		TVP5150_INTT_CONFIG_REG_B, 0x00
417 	},
418 	{ /* 0x28 */
419 		TVP5150_VIDEO_STD, 0x00
420 	},
421 	{ /* 0x2e */
422 		TVP5150_MACROVISION_ON_CTR, 0x0f
423 	},
424 	{ /* 0x2f */
425 		TVP5150_MACROVISION_OFF_CTR, 0x01
426 	},
427 	{ /* 0xbb */
428 		TVP5150_TELETEXT_FIL_ENA, 0x00
429 	},
430 	{ /* 0xc0 */
431 		TVP5150_INT_STATUS_REG_A, 0x00
432 	},
433 	{ /* 0xc1 */
434 		TVP5150_INT_ENABLE_REG_A, 0x00
435 	},
436 	{ /* 0xc2 */
437 		TVP5150_INT_CONF, 0x04
438 	},
439 	{ /* 0xc8 */
440 		TVP5150_FIFO_INT_THRESHOLD, 0x80
441 	},
442 	{ /* 0xc9 */
443 		TVP5150_FIFO_RESET, 0x00
444 	},
445 	{ /* 0xca */
446 		TVP5150_LINE_NUMBER_INT, 0x00
447 	},
448 	{ /* 0xcb */
449 		TVP5150_PIX_ALIGN_REG_LOW, 0x4e
450 	},
451 	{ /* 0xcc */
452 		TVP5150_PIX_ALIGN_REG_HIGH, 0x00
453 	},
454 	{ /* 0xcd */
455 		TVP5150_FIFO_OUT_CTRL, 0x01
456 	},
457 	{ /* 0xcf */
458 		TVP5150_FULL_FIELD_ENA, 0x00
459 	},
460 	{ /* 0xd0 */
461 		TVP5150_LINE_MODE_INI, 0x00
462 	},
463 	{ /* 0xfc */
464 		TVP5150_FULL_FIELD_MODE_REG, 0x7f
465 	},
466 	{ /* end of data */
467 		0xff, 0xff
468 	}
469 };
470 
471 /* Default values as sugested at TVP5150AM1 datasheet */
472 static const struct i2c_reg_value tvp5150_init_enable[] = {
473 	{	/* Automatic offset and AGC enabled */
474 		TVP5150_ANAL_CHL_CTL, 0x15
475 	}, {	/* Activate YCrCb output 0x9 or 0xd ? */
476 		TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
477 				  TVP5150_MISC_CTL_INTREQ_OE |
478 				  TVP5150_MISC_CTL_YCBCR_OE |
479 				  TVP5150_MISC_CTL_SYNC_OE |
480 				  TVP5150_MISC_CTL_VBLANK |
481 				  TVP5150_MISC_CTL_CLOCK_OE,
482 	}, {	/* Activates video std autodetection for all standards */
483 		TVP5150_AUTOSW_MSK, 0x0
484 	}, {	/* Default format: 0x47. For 4:2:2: 0x40 */
485 		TVP5150_DATA_RATE_SEL, 0x47
486 	}, {
487 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
488 	}, {
489 		TVP5150_CHROMA_PROC_CTL_2, 0x54
490 	}, {	/* Non documented, but initialized on WinTV USB2 */
491 		0x27, 0x20
492 	}, {
493 		0xff, 0xff
494 	}
495 };
496 
497 struct tvp5150_vbi_type {
498 	unsigned int vbi_type;
499 	unsigned int ini_line;
500 	unsigned int end_line;
501 	unsigned int by_field :1;
502 };
503 
504 struct i2c_vbi_ram_value {
505 	u16 reg;
506 	struct tvp5150_vbi_type type;
507 	unsigned char values[16];
508 };
509 
510 /* This struct have the values for each supported VBI Standard
511  * by
512  tvp5150_vbi_types should follow the same order as vbi_ram_default
513  * value 0 means rom position 0x10, value 1 means rom position 0x30
514  * and so on. There are 16 possible locations from 0 to 15.
515  */
516 
517 static struct i2c_vbi_ram_value vbi_ram_default[] = {
518 
519 	/*
520 	 * FIXME: Current api doesn't handle all VBI types, those not
521 	 * yet supported are placed under #if 0
522 	 */
523 #if 0
524 	[0] = {0x010, /* Teletext, SECAM, WST System A */
525 		{V4L2_SLICED_TELETEXT_SECAM, 6, 23, 1},
526 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
527 		  0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
528 	},
529 #endif
530 	[1] = {0x030, /* Teletext, PAL, WST System B */
531 		{V4L2_SLICED_TELETEXT_B, 6, 22, 1},
532 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
533 		  0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
534 	},
535 #if 0
536 	[2] = {0x050, /* Teletext, PAL, WST System C */
537 		{V4L2_SLICED_TELETEXT_PAL_C, 6, 22, 1},
538 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
539 		  0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
540 	},
541 	[3] = {0x070, /* Teletext, NTSC, WST System B */
542 		{V4L2_SLICED_TELETEXT_NTSC_B, 10, 21, 1},
543 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
544 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
545 	},
546 	[4] = {0x090, /* Tetetext, NTSC NABTS System C */
547 		{V4L2_SLICED_TELETEXT_NTSC_C, 10, 21, 1},
548 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
549 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
550 	},
551 	[5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
552 		{V4L2_SLICED_TELETEXT_NTSC_D, 10, 21, 1},
553 		{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
554 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
555 	},
556 	[6] = {0x0d0, /* Closed Caption, PAL/SECAM */
557 		{V4L2_SLICED_CAPTION_625, 22, 22, 1},
558 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
559 		  0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
560 	},
561 #endif
562 	[7] = {0x0f0, /* Closed Caption, NTSC */
563 		{V4L2_SLICED_CAPTION_525, 21, 21, 1},
564 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
565 		  0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
566 	},
567 	[8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
568 		{V4L2_SLICED_WSS_625, 23, 23, 1},
569 		{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
570 		  0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
571 	},
572 #if 0
573 	[9] = {0x130, /* Wide Screen Signal, NTSC C */
574 		{V4L2_SLICED_WSS_525, 20, 20, 1},
575 		{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
576 		  0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
577 	},
578 	[10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
579 		{V4l2_SLICED_VITC_625, 6, 22, 0},
580 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
581 		  0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
582 	},
583 	[11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
584 		{V4l2_SLICED_VITC_525, 10, 20, 0},
585 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
586 		  0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
587 	},
588 #endif
589 	[12] = {0x190, /* Video Program System (VPS), PAL */
590 		{V4L2_SLICED_VPS, 16, 16, 0},
591 		{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
592 		  0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
593 	},
594 	/* 0x1d0 User programmable */
595 };
596 
tvp5150_write_inittab(struct v4l2_subdev * sd,const struct i2c_reg_value * regs)597 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
598 				const struct i2c_reg_value *regs)
599 {
600 	struct tvp5150 *decoder = to_tvp5150(sd);
601 
602 	while (regs->reg != 0xff) {
603 		regmap_write(decoder->regmap, regs->reg, regs->value);
604 		regs++;
605 	}
606 	return 0;
607 }
608 
tvp5150_vdp_init(struct v4l2_subdev * sd)609 static int tvp5150_vdp_init(struct v4l2_subdev *sd)
610 {
611 	struct tvp5150 *decoder = to_tvp5150(sd);
612 	struct regmap *map = decoder->regmap;
613 	unsigned int i;
614 	int j;
615 
616 	/* Disable Full Field */
617 	regmap_write(map, TVP5150_FULL_FIELD_ENA, 0);
618 
619 	/* Before programming, Line mode should be at 0xff */
620 	for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
621 		regmap_write(map, i, 0xff);
622 
623 	/* Load Ram Table */
624 	for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
625 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
626 
627 		if (!regs->type.vbi_type)
628 			continue;
629 
630 		regmap_write(map, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
631 		regmap_write(map, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
632 
633 		for (i = 0; i < 16; i++)
634 			regmap_write(map, TVP5150_VDP_CONF_RAM_DATA,
635 				     regs->values[i]);
636 	}
637 	return 0;
638 }
639 
640 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
tvp5150_g_sliced_vbi_cap(struct v4l2_subdev * sd,struct v4l2_sliced_vbi_cap * cap)641 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
642 				struct v4l2_sliced_vbi_cap *cap)
643 {
644 	int line, i;
645 
646 	dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
647 	memset(cap, 0, sizeof(*cap));
648 
649 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
650 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
651 
652 		if (!regs->type.vbi_type)
653 			continue;
654 
655 		for (line = regs->type.ini_line;
656 		     line <= regs->type.end_line;
657 		     line++) {
658 			cap->service_lines[0][line] |= regs->type.vbi_type;
659 		}
660 		cap->service_set |= regs->type.vbi_type;
661 	}
662 	return 0;
663 }
664 
665 /* Set vbi processing
666  * type - one of tvp5150_vbi_types
667  * line - line to gather data
668  * fields: bit 0 field1, bit 1, field2
669  * flags (default=0xf0) is a bitmask, were set means:
670  *	bit 7: enable filtering null bytes on CC
671  *	bit 6: send data also to FIFO
672  *	bit 5: don't allow data with errors on FIFO
673  *	bit 4: enable ECC when possible
674  * pix_align = pix alignment:
675  *	LSB = field1
676  *	MSB = field2
677  */
tvp5150_set_vbi(struct v4l2_subdev * sd,unsigned int type,u8 flags,int line,const int fields)678 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
679 			unsigned int type, u8 flags, int line,
680 			const int fields)
681 {
682 	struct tvp5150 *decoder = to_tvp5150(sd);
683 	v4l2_std_id std = decoder->norm;
684 	u8 reg;
685 	int i, pos = 0;
686 
687 	if (std == V4L2_STD_ALL) {
688 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
689 		return 0;
690 	} else if (std & V4L2_STD_625_50) {
691 		/* Don't follow NTSC Line number convension */
692 		line += 3;
693 	}
694 
695 	if (line < 6 || line > 27)
696 		return 0;
697 
698 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
699 		const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
700 
701 		if (!regs->type.vbi_type)
702 			continue;
703 
704 		if ((type & regs->type.vbi_type) &&
705 		    (line >= regs->type.ini_line) &&
706 		    (line <= regs->type.end_line))
707 			break;
708 		pos++;
709 	}
710 
711 	type = pos | (flags & 0xf0);
712 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
713 
714 	if (fields & 1)
715 		regmap_write(decoder->regmap, reg, type);
716 
717 	if (fields & 2)
718 		regmap_write(decoder->regmap, reg + 1, type);
719 
720 	return type;
721 }
722 
tvp5150_get_vbi(struct v4l2_subdev * sd,int line)723 static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
724 {
725 	struct tvp5150 *decoder = to_tvp5150(sd);
726 	v4l2_std_id std = decoder->norm;
727 	u8 reg;
728 	int pos, type = 0;
729 	int i, ret = 0;
730 
731 	if (std == V4L2_STD_ALL) {
732 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
733 		return 0;
734 	} else if (std & V4L2_STD_625_50) {
735 		/* Don't follow NTSC Line number convension */
736 		line += 3;
737 	}
738 
739 	if (line < 6 || line > 27)
740 		return 0;
741 
742 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
743 
744 	for (i = 0; i <= 1; i++) {
745 		ret = tvp5150_read(sd, reg + i);
746 		if (ret < 0) {
747 			dev_err(sd->dev, "%s: failed with error = %d\n",
748 				 __func__, ret);
749 			return 0;
750 		}
751 		pos = ret & 0x0f;
752 		if (pos < ARRAY_SIZE(vbi_ram_default))
753 			type |= vbi_ram_default[pos].type.vbi_type;
754 	}
755 
756 	return type;
757 }
758 
tvp5150_set_std(struct v4l2_subdev * sd,v4l2_std_id std)759 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
760 {
761 	struct tvp5150 *decoder = to_tvp5150(sd);
762 	int fmt = 0;
763 
764 	/* First tests should be against specific std */
765 
766 	if (std == V4L2_STD_NTSC_443) {
767 		fmt = VIDEO_STD_NTSC_4_43_BIT;
768 	} else if (std == V4L2_STD_PAL_M) {
769 		fmt = VIDEO_STD_PAL_M_BIT;
770 	} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
771 		fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
772 	} else {
773 		/* Then, test against generic ones */
774 		if (std & V4L2_STD_NTSC)
775 			fmt = VIDEO_STD_NTSC_MJ_BIT;
776 		else if (std & V4L2_STD_PAL)
777 			fmt = VIDEO_STD_PAL_BDGHIN_BIT;
778 		else if (std & V4L2_STD_SECAM)
779 			fmt = VIDEO_STD_SECAM_BIT;
780 	}
781 
782 	dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
783 	regmap_write(decoder->regmap, TVP5150_VIDEO_STD, fmt);
784 	return 0;
785 }
786 
tvp5150_g_std(struct v4l2_subdev * sd,v4l2_std_id * std)787 static int tvp5150_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
788 {
789 	struct tvp5150 *decoder = to_tvp5150(sd);
790 
791 	*std = decoder->norm;
792 
793 	return 0;
794 }
795 
tvp5150_s_std(struct v4l2_subdev * sd,v4l2_std_id std)796 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
797 {
798 	struct tvp5150 *decoder = to_tvp5150(sd);
799 	struct tvp5150_connector *cur_con = decoder->cur_connector;
800 	v4l2_std_id supported_stds;
801 
802 	if (decoder->norm == std)
803 		return 0;
804 
805 	/* In case of no of-connectors are available no limitations are made */
806 	if (!decoder->connectors_num)
807 		supported_stds = V4L2_STD_ALL;
808 	else
809 		supported_stds = cur_con->base.connector.analog.sdtv_stds;
810 
811 	/*
812 	 * Check if requested std or group of std's is/are supported by the
813 	 * connector.
814 	 */
815 	if ((supported_stds & std) == 0)
816 		return -EINVAL;
817 
818 	/* Change cropping height limits */
819 	if (std & V4L2_STD_525_60)
820 		decoder->rect.height = TVP5150_V_MAX_525_60;
821 	else
822 		decoder->rect.height = TVP5150_V_MAX_OTHERS;
823 
824 	/* Set only the specific supported std in case of group of std's. */
825 	decoder->norm = supported_stds & std;
826 
827 	return tvp5150_set_std(sd, std);
828 }
829 
tvp5150_read_std(struct v4l2_subdev * sd)830 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
831 {
832 	int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
833 
834 	switch (val & 0x0F) {
835 	case 0x01:
836 		return V4L2_STD_NTSC;
837 	case 0x03:
838 		return V4L2_STD_PAL;
839 	case 0x05:
840 		return V4L2_STD_PAL_M;
841 	case 0x07:
842 		return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
843 	case 0x09:
844 		return V4L2_STD_NTSC_443;
845 	case 0xb:
846 		return V4L2_STD_SECAM;
847 	default:
848 		return V4L2_STD_UNKNOWN;
849 	}
850 }
851 
query_lock(struct v4l2_subdev * sd)852 static int query_lock(struct v4l2_subdev *sd)
853 {
854 	struct tvp5150 *decoder = to_tvp5150(sd);
855 	int status;
856 
857 	if (decoder->irq)
858 		return decoder->lock;
859 
860 	regmap_read(decoder->regmap, TVP5150_STATUS_REG_1, &status);
861 
862 	/* For standard detection, we need the 3 locks */
863 	return (status & 0x0e) == 0x0e;
864 }
865 
tvp5150_querystd(struct v4l2_subdev * sd,v4l2_std_id * std_id)866 static int tvp5150_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
867 {
868 	*std_id = query_lock(sd) ? tvp5150_read_std(sd) : V4L2_STD_UNKNOWN;
869 
870 	return 0;
871 }
872 
873 static const struct v4l2_event tvp5150_ev_fmt = {
874 	.type = V4L2_EVENT_SOURCE_CHANGE,
875 	.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
876 };
877 
tvp5150_isr(int irq,void * dev_id)878 static irqreturn_t tvp5150_isr(int irq, void *dev_id)
879 {
880 	struct tvp5150 *decoder = dev_id;
881 	struct regmap *map = decoder->regmap;
882 	unsigned int mask, active = 0, status = 0;
883 
884 	mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
885 	       TVP5150_MISC_CTL_CLOCK_OE;
886 
887 	regmap_read(map, TVP5150_INT_STATUS_REG_A, &status);
888 	if (status) {
889 		regmap_write(map, TVP5150_INT_STATUS_REG_A, status);
890 
891 		if (status & TVP5150_INT_A_LOCK) {
892 			decoder->lock = !!(status & TVP5150_INT_A_LOCK_STATUS);
893 			dev_dbg_lvl(decoder->sd.dev, 1, debug,
894 				    "sync lo%s signal\n",
895 				    decoder->lock ? "ck" : "ss");
896 			v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
897 			regmap_update_bits(map, TVP5150_MISC_CTL, mask,
898 					   decoder->lock ? decoder->oe : 0);
899 		}
900 
901 		return IRQ_HANDLED;
902 	}
903 
904 	regmap_read(map, TVP5150_INT_ACTIVE_REG_B, &active);
905 	if (active) {
906 		status = 0;
907 		regmap_read(map, TVP5150_INT_STATUS_REG_B, &status);
908 		if (status)
909 			regmap_write(map, TVP5150_INT_RESET_REG_B, status);
910 	}
911 
912 	return IRQ_HANDLED;
913 }
914 
tvp5150_reset(struct v4l2_subdev * sd,u32 val)915 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
916 {
917 	struct tvp5150 *decoder = to_tvp5150(sd);
918 	struct regmap *map = decoder->regmap;
919 
920 	/* Initializes TVP5150 to its default values */
921 	tvp5150_write_inittab(sd, tvp5150_init_default);
922 
923 	if (decoder->irq) {
924 		/* Configure pins: FID, VSYNC, INTREQ, SCLK */
925 		regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x0);
926 		/* Set interrupt polarity to active high */
927 		regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE | 0x1);
928 		regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x1);
929 	} else {
930 		/* Configure pins: FID, VSYNC, GPCL/VBLK, SCLK */
931 		regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x2);
932 		/* Keep interrupt polarity active low */
933 		regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE);
934 		regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x0);
935 	}
936 
937 	/* Initializes VDP registers */
938 	tvp5150_vdp_init(sd);
939 
940 	/* Selects decoder input */
941 	tvp5150_selmux(sd);
942 
943 	/* Initialize image preferences */
944 	v4l2_ctrl_handler_setup(&decoder->hdl);
945 
946 	return 0;
947 }
948 
tvp5150_enable(struct v4l2_subdev * sd)949 static int tvp5150_enable(struct v4l2_subdev *sd)
950 {
951 	struct tvp5150 *decoder = to_tvp5150(sd);
952 	v4l2_std_id std;
953 
954 	/* Initializes TVP5150 to stream enabled values */
955 	tvp5150_write_inittab(sd, tvp5150_init_enable);
956 
957 	if (decoder->norm == V4L2_STD_ALL)
958 		std = tvp5150_read_std(sd);
959 	else
960 		std = decoder->norm;
961 
962 	/* Disable autoswitch mode */
963 	tvp5150_set_std(sd, std);
964 
965 	/*
966 	 * Enable the YCbCr and clock outputs. In discrete sync mode
967 	 * (non-BT.656) additionally enable the sync outputs.
968 	 */
969 	switch (decoder->mbus_type) {
970 	case V4L2_MBUS_PARALLEL:
971 		/* 8-bit 4:2:2 YUV with discrete sync output */
972 		regmap_update_bits(decoder->regmap, TVP5150_DATA_RATE_SEL,
973 				   0x7, 0x0);
974 		decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
975 			      TVP5150_MISC_CTL_CLOCK_OE |
976 			      TVP5150_MISC_CTL_SYNC_OE;
977 		break;
978 	case V4L2_MBUS_BT656:
979 		decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
980 			      TVP5150_MISC_CTL_CLOCK_OE;
981 		break;
982 	default:
983 		return -EINVAL;
984 	}
985 
986 	return 0;
987 };
988 
tvp5150_s_ctrl(struct v4l2_ctrl * ctrl)989 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
990 {
991 	struct v4l2_subdev *sd = to_sd(ctrl);
992 	struct tvp5150 *decoder = to_tvp5150(sd);
993 
994 	switch (ctrl->id) {
995 	case V4L2_CID_BRIGHTNESS:
996 		regmap_write(decoder->regmap, TVP5150_BRIGHT_CTL, ctrl->val);
997 		return 0;
998 	case V4L2_CID_CONTRAST:
999 		regmap_write(decoder->regmap, TVP5150_CONTRAST_CTL, ctrl->val);
1000 		return 0;
1001 	case V4L2_CID_SATURATION:
1002 		regmap_write(decoder->regmap, TVP5150_SATURATION_CTL,
1003 			     ctrl->val);
1004 		return 0;
1005 	case V4L2_CID_HUE:
1006 		regmap_write(decoder->regmap, TVP5150_HUE_CTL, ctrl->val);
1007 		return 0;
1008 	case V4L2_CID_TEST_PATTERN:
1009 		decoder->enable = ctrl->val ? false : true;
1010 		tvp5150_selmux(sd);
1011 		return 0;
1012 	}
1013 	return -EINVAL;
1014 }
1015 
tvp5150_set_default(v4l2_std_id std,struct v4l2_rect * crop)1016 static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop)
1017 {
1018 	/* Default is no cropping */
1019 	crop->top = 0;
1020 	crop->left = 0;
1021 	crop->width = TVP5150_H_MAX;
1022 	if (std & V4L2_STD_525_60)
1023 		crop->height = TVP5150_V_MAX_525_60;
1024 	else
1025 		crop->height = TVP5150_V_MAX_OTHERS;
1026 }
1027 
1028 static struct v4l2_rect *
tvp5150_get_pad_crop(struct tvp5150 * decoder,struct v4l2_subdev_state * sd_state,unsigned int pad,enum v4l2_subdev_format_whence which)1029 tvp5150_get_pad_crop(struct tvp5150 *decoder,
1030 		     struct v4l2_subdev_state *sd_state, unsigned int pad,
1031 		     enum v4l2_subdev_format_whence which)
1032 {
1033 	switch (which) {
1034 	case V4L2_SUBDEV_FORMAT_ACTIVE:
1035 		return &decoder->rect;
1036 	case V4L2_SUBDEV_FORMAT_TRY:
1037 #if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
1038 		return v4l2_subdev_get_try_crop(&decoder->sd, sd_state, pad);
1039 #else
1040 		return ERR_PTR(-EINVAL);
1041 #endif
1042 	default:
1043 		return ERR_PTR(-EINVAL);
1044 	}
1045 }
1046 
tvp5150_fill_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_format * format)1047 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
1048 			    struct v4l2_subdev_state *sd_state,
1049 			    struct v4l2_subdev_format *format)
1050 {
1051 	struct v4l2_mbus_framefmt *f;
1052 	struct tvp5150 *decoder = to_tvp5150(sd);
1053 
1054 	if (!format || (format->pad != TVP5150_PAD_VID_OUT))
1055 		return -EINVAL;
1056 
1057 	f = &format->format;
1058 
1059 	f->width = decoder->rect.width;
1060 	f->height = decoder->rect.height / 2;
1061 
1062 	f->code = TVP5150_MBUS_FMT;
1063 	f->field = TVP5150_FIELD;
1064 	f->colorspace = TVP5150_COLORSPACE;
1065 
1066 	dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
1067 		    f->height);
1068 	return 0;
1069 }
1070 
tvp5150_get_hmax(struct v4l2_subdev * sd)1071 static unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd)
1072 {
1073 	struct tvp5150 *decoder = to_tvp5150(sd);
1074 	v4l2_std_id std;
1075 
1076 	/* Calculate height based on current standard */
1077 	if (decoder->norm == V4L2_STD_ALL)
1078 		std = tvp5150_read_std(sd);
1079 	else
1080 		std = decoder->norm;
1081 
1082 	return (std & V4L2_STD_525_60) ?
1083 		TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS;
1084 }
1085 
tvp5150_set_hw_selection(struct v4l2_subdev * sd,struct v4l2_rect * rect)1086 static void tvp5150_set_hw_selection(struct v4l2_subdev *sd,
1087 				     struct v4l2_rect *rect)
1088 {
1089 	struct tvp5150 *decoder = to_tvp5150(sd);
1090 	unsigned int hmax = tvp5150_get_hmax(sd);
1091 
1092 	regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect->top);
1093 	regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP,
1094 		     rect->top + rect->height - hmax);
1095 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB,
1096 		     rect->left >> TVP5150_CROP_SHIFT);
1097 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB,
1098 		     rect->left | (1 << TVP5150_CROP_SHIFT));
1099 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB,
1100 		     (rect->left + rect->width - TVP5150_MAX_CROP_LEFT) >>
1101 		     TVP5150_CROP_SHIFT);
1102 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB,
1103 		     rect->left + rect->width - TVP5150_MAX_CROP_LEFT);
1104 }
1105 
tvp5150_set_selection(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_selection * sel)1106 static int tvp5150_set_selection(struct v4l2_subdev *sd,
1107 				 struct v4l2_subdev_state *sd_state,
1108 				 struct v4l2_subdev_selection *sel)
1109 {
1110 	struct tvp5150 *decoder = to_tvp5150(sd);
1111 	struct v4l2_rect *rect = &sel->r;
1112 	struct v4l2_rect *crop;
1113 	unsigned int hmax;
1114 
1115 	if (sel->target != V4L2_SEL_TGT_CROP)
1116 		return -EINVAL;
1117 
1118 	dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
1119 		__func__, rect->left, rect->top, rect->width, rect->height);
1120 
1121 	/* tvp5150 has some special limits */
1122 	rect->left = clamp(rect->left, 0, TVP5150_MAX_CROP_LEFT);
1123 	rect->top = clamp(rect->top, 0, TVP5150_MAX_CROP_TOP);
1124 	hmax = tvp5150_get_hmax(sd);
1125 
1126 	/*
1127 	 * alignments:
1128 	 *  - width = 2 due to UYVY colorspace
1129 	 *  - height, image = no special alignment
1130 	 */
1131 	v4l_bound_align_image(&rect->width,
1132 			      TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect->left,
1133 			      TVP5150_H_MAX - rect->left, 1, &rect->height,
1134 			      hmax - TVP5150_MAX_CROP_TOP - rect->top,
1135 			      hmax - rect->top, 0, 0);
1136 
1137 	if (!IS_ENABLED(CONFIG_VIDEO_V4L2_SUBDEV_API) &&
1138 	    sel->which == V4L2_SUBDEV_FORMAT_TRY)
1139 		return 0;
1140 
1141 	crop = tvp5150_get_pad_crop(decoder, sd_state, sel->pad, sel->which);
1142 	if (IS_ERR(crop))
1143 		return PTR_ERR(crop);
1144 
1145 	/*
1146 	 * Update output image size if the selection (crop) rectangle size or
1147 	 * position has been modified.
1148 	 */
1149 	if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE &&
1150 	    !v4l2_rect_equal(rect, crop))
1151 		tvp5150_set_hw_selection(sd, rect);
1152 
1153 	*crop = *rect;
1154 
1155 	return 0;
1156 }
1157 
tvp5150_get_selection(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_selection * sel)1158 static int tvp5150_get_selection(struct v4l2_subdev *sd,
1159 				 struct v4l2_subdev_state *sd_state,
1160 				 struct v4l2_subdev_selection *sel)
1161 {
1162 	struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
1163 	struct v4l2_rect *crop;
1164 	v4l2_std_id std;
1165 
1166 	switch (sel->target) {
1167 	case V4L2_SEL_TGT_CROP_BOUNDS:
1168 		sel->r.left = 0;
1169 		sel->r.top = 0;
1170 		sel->r.width = TVP5150_H_MAX;
1171 
1172 		/* Calculate height based on current standard */
1173 		if (decoder->norm == V4L2_STD_ALL)
1174 			std = tvp5150_read_std(sd);
1175 		else
1176 			std = decoder->norm;
1177 		if (std & V4L2_STD_525_60)
1178 			sel->r.height = TVP5150_V_MAX_525_60;
1179 		else
1180 			sel->r.height = TVP5150_V_MAX_OTHERS;
1181 		return 0;
1182 	case V4L2_SEL_TGT_CROP:
1183 		crop = tvp5150_get_pad_crop(decoder, sd_state, sel->pad,
1184 					    sel->which);
1185 		if (IS_ERR(crop))
1186 			return PTR_ERR(crop);
1187 		sel->r = *crop;
1188 		return 0;
1189 	default:
1190 		return -EINVAL;
1191 	}
1192 }
1193 
tvp5150_get_mbus_config(struct v4l2_subdev * sd,unsigned int pad,struct v4l2_mbus_config * cfg)1194 static int tvp5150_get_mbus_config(struct v4l2_subdev *sd,
1195 				   unsigned int pad,
1196 				   struct v4l2_mbus_config *cfg)
1197 {
1198 	struct tvp5150 *decoder = to_tvp5150(sd);
1199 
1200 	cfg->type = decoder->mbus_type;
1201 	cfg->bus.parallel.flags = V4L2_MBUS_MASTER
1202 				| V4L2_MBUS_PCLK_SAMPLE_RISING
1203 				| V4L2_MBUS_FIELD_EVEN_LOW
1204 				| V4L2_MBUS_DATA_ACTIVE_HIGH;
1205 
1206 	return 0;
1207 }
1208 
1209 /****************************************************************************
1210 			V4L2 subdev pad ops
1211  ****************************************************************************/
tvp5150_init_cfg(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state)1212 static int tvp5150_init_cfg(struct v4l2_subdev *sd,
1213 			    struct v4l2_subdev_state *sd_state)
1214 {
1215 	struct tvp5150 *decoder = to_tvp5150(sd);
1216 	v4l2_std_id std;
1217 
1218 	/*
1219 	 * Reset selection to maximum on subdev_open() if autodetection is on
1220 	 * and a standard change is detected.
1221 	 */
1222 	if (decoder->norm == V4L2_STD_ALL) {
1223 		std = tvp5150_read_std(sd);
1224 		if (std != decoder->detected_norm) {
1225 			decoder->detected_norm = std;
1226 			tvp5150_set_default(std, &decoder->rect);
1227 		}
1228 	}
1229 
1230 	return 0;
1231 }
1232 
tvp5150_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_mbus_code_enum * code)1233 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
1234 		struct v4l2_subdev_state *sd_state,
1235 		struct v4l2_subdev_mbus_code_enum *code)
1236 {
1237 	if (code->pad || code->index)
1238 		return -EINVAL;
1239 
1240 	code->code = TVP5150_MBUS_FMT;
1241 	return 0;
1242 }
1243 
tvp5150_enum_frame_size(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_frame_size_enum * fse)1244 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1245 				   struct v4l2_subdev_state *sd_state,
1246 				   struct v4l2_subdev_frame_size_enum *fse)
1247 {
1248 	struct tvp5150 *decoder = to_tvp5150(sd);
1249 
1250 	if (fse->index >= 8 || fse->code != TVP5150_MBUS_FMT)
1251 		return -EINVAL;
1252 
1253 	fse->code = TVP5150_MBUS_FMT;
1254 	fse->min_width = decoder->rect.width;
1255 	fse->max_width = decoder->rect.width;
1256 	fse->min_height = decoder->rect.height / 2;
1257 	fse->max_height = decoder->rect.height / 2;
1258 
1259 	return 0;
1260 }
1261 
1262 /****************************************************************************
1263  *			Media entity ops
1264  ****************************************************************************/
1265 #if defined(CONFIG_MEDIA_CONTROLLER)
tvp5150_set_link(struct media_pad * connector_pad,struct media_pad * tvp5150_pad,u32 flags)1266 static int tvp5150_set_link(struct media_pad *connector_pad,
1267 			    struct media_pad *tvp5150_pad, u32 flags)
1268 {
1269 	struct media_link *link;
1270 
1271 	link = media_entity_find_link(connector_pad, tvp5150_pad);
1272 	if (!link)
1273 		return -EINVAL;
1274 
1275 	link->flags = flags;
1276 	link->reverse->flags = link->flags;
1277 
1278 	return 0;
1279 }
1280 
tvp5150_disable_all_input_links(struct tvp5150 * decoder)1281 static int tvp5150_disable_all_input_links(struct tvp5150 *decoder)
1282 {
1283 	struct media_pad *connector_pad;
1284 	unsigned int i;
1285 	int err;
1286 
1287 	for (i = 0; i < TVP5150_NUM_PADS - 1; i++) {
1288 		connector_pad = media_pad_remote_pad_first(&decoder->pads[i]);
1289 		if (!connector_pad)
1290 			continue;
1291 
1292 		err = tvp5150_set_link(connector_pad, &decoder->pads[i], 0);
1293 		if (err)
1294 			return err;
1295 	}
1296 
1297 	return 0;
1298 }
1299 
1300 static int tvp5150_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
1301 			     u32 config);
1302 
tvp5150_link_setup(struct media_entity * entity,const struct media_pad * tvp5150_pad,const struct media_pad * remote,u32 flags)1303 static int tvp5150_link_setup(struct media_entity *entity,
1304 			      const struct media_pad *tvp5150_pad,
1305 			      const struct media_pad *remote, u32 flags)
1306 {
1307 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1308 	struct tvp5150 *decoder = to_tvp5150(sd);
1309 	struct media_pad *other_tvp5150_pad =
1310 		&decoder->pads[tvp5150_pad->index ^ 1];
1311 	struct v4l2_fwnode_connector *v4l2c;
1312 	bool is_svideo = false;
1313 	unsigned int i;
1314 	int err;
1315 
1316 	/*
1317 	 * The TVP5150 state is determined by the enabled sink pad link(s).
1318 	 * Enabling or disabling the source pad link has no effect.
1319 	 */
1320 	if (tvp5150_pad->flags & MEDIA_PAD_FL_SOURCE)
1321 		return 0;
1322 
1323 	/* Check if the svideo connector should be enabled */
1324 	for (i = 0; i < decoder->connectors_num; i++) {
1325 		if (remote->entity == &decoder->connectors[i].ent) {
1326 			v4l2c = &decoder->connectors[i].base;
1327 			is_svideo = v4l2c->type == V4L2_CONN_SVIDEO;
1328 			break;
1329 		}
1330 	}
1331 
1332 	dev_dbg_lvl(sd->dev, 1, debug, "link setup '%s':%d->'%s':%d[%d]",
1333 		    remote->entity->name, remote->index,
1334 		    tvp5150_pad->entity->name, tvp5150_pad->index,
1335 		    flags & MEDIA_LNK_FL_ENABLED);
1336 	if (is_svideo)
1337 		dev_dbg_lvl(sd->dev, 1, debug,
1338 			    "link setup '%s':%d->'%s':%d[%d]",
1339 			    remote->entity->name, remote->index,
1340 			    other_tvp5150_pad->entity->name,
1341 			    other_tvp5150_pad->index,
1342 			    flags & MEDIA_LNK_FL_ENABLED);
1343 
1344 	/*
1345 	 * The TVP5150 has an internal mux which allows the following setup:
1346 	 *
1347 	 * comp-connector1  --\
1348 	 *		       |---> AIP1A
1349 	 *		      /
1350 	 * svideo-connector -|
1351 	 *		      \
1352 	 *		       |---> AIP1B
1353 	 * comp-connector2  --/
1354 	 *
1355 	 * We can't rely on user space that the current connector gets disabled
1356 	 * first before enabling the new connector. Disable all active
1357 	 * connector links to be on the safe side.
1358 	 */
1359 	err = tvp5150_disable_all_input_links(decoder);
1360 	if (err)
1361 		return err;
1362 
1363 	tvp5150_s_routing(sd, is_svideo ? TVP5150_SVIDEO : tvp5150_pad->index,
1364 			  flags & MEDIA_LNK_FL_ENABLED ? TVP5150_NORMAL :
1365 			  TVP5150_BLACK_SCREEN, 0);
1366 
1367 	if (flags & MEDIA_LNK_FL_ENABLED) {
1368 		struct v4l2_fwnode_connector_analog *v4l2ca;
1369 		u32 new_norm;
1370 
1371 		/*
1372 		 * S-Video connector is conneted to both ports AIP1A and AIP1B.
1373 		 * Both links must be enabled in one-shot regardless which link
1374 		 * the user requests.
1375 		 */
1376 		if (is_svideo) {
1377 			err = tvp5150_set_link((struct media_pad *)remote,
1378 					       other_tvp5150_pad, flags);
1379 			if (err)
1380 				return err;
1381 		}
1382 
1383 		if (!decoder->connectors_num)
1384 			return 0;
1385 
1386 		/* Update the current connector */
1387 		decoder->cur_connector =
1388 			container_of(remote, struct tvp5150_connector, pad);
1389 
1390 		/*
1391 		 * Do nothing if the new connector supports the same tv-norms as
1392 		 * the old one.
1393 		 */
1394 		v4l2ca = &decoder->cur_connector->base.connector.analog;
1395 		new_norm = decoder->norm & v4l2ca->sdtv_stds;
1396 		if (decoder->norm == new_norm)
1397 			return 0;
1398 
1399 		/*
1400 		 * Fallback to the new connector tv-norms if we can't find any
1401 		 * common between the current tv-norm and the new one.
1402 		 */
1403 		tvp5150_s_std(sd, new_norm ? new_norm : v4l2ca->sdtv_stds);
1404 	}
1405 
1406 	return 0;
1407 }
1408 
1409 static const struct media_entity_operations tvp5150_sd_media_ops = {
1410 	.link_setup = tvp5150_link_setup,
1411 };
1412 #endif
1413 /****************************************************************************
1414 			I2C Command
1415  ****************************************************************************/
tvp5150_runtime_suspend(struct device * dev)1416 static int __maybe_unused tvp5150_runtime_suspend(struct device *dev)
1417 {
1418 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
1419 	struct tvp5150 *decoder = to_tvp5150(sd);
1420 
1421 	if (decoder->irq)
1422 		/* Disable lock interrupt */
1423 		return regmap_update_bits(decoder->regmap,
1424 					  TVP5150_INT_ENABLE_REG_A,
1425 					  TVP5150_INT_A_LOCK, 0);
1426 	return 0;
1427 }
1428 
tvp5150_runtime_resume(struct device * dev)1429 static int __maybe_unused tvp5150_runtime_resume(struct device *dev)
1430 {
1431 	struct v4l2_subdev *sd = dev_get_drvdata(dev);
1432 	struct tvp5150 *decoder = to_tvp5150(sd);
1433 
1434 	if (decoder->irq)
1435 		/* Enable lock interrupt */
1436 		return regmap_update_bits(decoder->regmap,
1437 					  TVP5150_INT_ENABLE_REG_A,
1438 					  TVP5150_INT_A_LOCK,
1439 					  TVP5150_INT_A_LOCK);
1440 	return 0;
1441 }
1442 
tvp5150_s_stream(struct v4l2_subdev * sd,int enable)1443 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1444 {
1445 	struct tvp5150 *decoder = to_tvp5150(sd);
1446 	unsigned int mask, val = 0;
1447 	int ret;
1448 
1449 	mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1450 	       TVP5150_MISC_CTL_CLOCK_OE;
1451 
1452 	if (enable) {
1453 		ret = pm_runtime_resume_and_get(sd->dev);
1454 		if (ret < 0)
1455 			return ret;
1456 
1457 		tvp5150_enable(sd);
1458 
1459 		/* Enable outputs if decoder is locked */
1460 		if (decoder->irq)
1461 			val = decoder->lock ? decoder->oe : 0;
1462 		else
1463 			val = decoder->oe;
1464 
1465 		v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
1466 	} else {
1467 		pm_runtime_put(sd->dev);
1468 	}
1469 
1470 	regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
1471 
1472 	return 0;
1473 }
1474 
tvp5150_s_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)1475 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1476 			     u32 input, u32 output, u32 config)
1477 {
1478 	struct tvp5150 *decoder = to_tvp5150(sd);
1479 
1480 	decoder->input = input;
1481 	decoder->output = output;
1482 
1483 	if (output == TVP5150_BLACK_SCREEN)
1484 		decoder->enable = false;
1485 	else
1486 		decoder->enable = true;
1487 
1488 	tvp5150_selmux(sd);
1489 	return 0;
1490 }
1491 
tvp5150_s_raw_fmt(struct v4l2_subdev * sd,struct v4l2_vbi_format * fmt)1492 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1493 {
1494 	struct tvp5150 *decoder = to_tvp5150(sd);
1495 
1496 	/*
1497 	 * this is for capturing 36 raw vbi lines
1498 	 * if there's a way to cut off the beginning 2 vbi lines
1499 	 * with the tvp5150 then the vbi line count could be lowered
1500 	 * to 17 lines/field again, although I couldn't find a register
1501 	 * which could do that cropping
1502 	 */
1503 
1504 	if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1505 		regmap_write(decoder->regmap, TVP5150_LUMA_PROC_CTL_1, 0x70);
1506 	if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1507 		regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START,
1508 			     0x00);
1509 		regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, 0x01);
1510 	}
1511 	return 0;
1512 }
1513 
tvp5150_s_sliced_fmt(struct v4l2_subdev * sd,struct v4l2_sliced_vbi_format * svbi)1514 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1515 {
1516 	struct tvp5150 *decoder = to_tvp5150(sd);
1517 	int i;
1518 
1519 	if (svbi->service_set != 0) {
1520 		for (i = 0; i <= 23; i++) {
1521 			svbi->service_lines[1][i] = 0;
1522 			svbi->service_lines[0][i] =
1523 				tvp5150_set_vbi(sd, svbi->service_lines[0][i],
1524 						0xf0, i, 3);
1525 		}
1526 		/* Enables FIFO */
1527 		regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 1);
1528 	} else {
1529 		/* Disables FIFO*/
1530 		regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 0);
1531 
1532 		/* Disable Full Field */
1533 		regmap_write(decoder->regmap, TVP5150_FULL_FIELD_ENA, 0);
1534 
1535 		/* Disable Line modes */
1536 		for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1537 			regmap_write(decoder->regmap, i, 0xff);
1538 	}
1539 	return 0;
1540 }
1541 
tvp5150_g_sliced_fmt(struct v4l2_subdev * sd,struct v4l2_sliced_vbi_format * svbi)1542 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1543 {
1544 	int i, mask = 0;
1545 
1546 	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1547 
1548 	for (i = 0; i <= 23; i++) {
1549 		svbi->service_lines[0][i] =
1550 			tvp5150_get_vbi(sd, i);
1551 		mask |= svbi->service_lines[0][i];
1552 	}
1553 	svbi->service_set = mask;
1554 	return 0;
1555 }
1556 
1557 #ifdef CONFIG_VIDEO_ADV_DEBUG
tvp5150_g_register(struct v4l2_subdev * sd,struct v4l2_dbg_register * reg)1558 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1559 {
1560 	int res;
1561 
1562 	res = tvp5150_read(sd, reg->reg & 0xff);
1563 	if (res < 0) {
1564 		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1565 		return res;
1566 	}
1567 
1568 	reg->val = res;
1569 	reg->size = 1;
1570 	return 0;
1571 }
1572 
tvp5150_s_register(struct v4l2_subdev * sd,const struct v4l2_dbg_register * reg)1573 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1574 {
1575 	struct tvp5150 *decoder = to_tvp5150(sd);
1576 
1577 	return regmap_write(decoder->regmap, reg->reg & 0xff, reg->val & 0xff);
1578 }
1579 #endif
1580 
tvp5150_subscribe_event(struct v4l2_subdev * sd,struct v4l2_fh * fh,struct v4l2_event_subscription * sub)1581 static int tvp5150_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
1582 				   struct v4l2_event_subscription *sub)
1583 {
1584 	switch (sub->type) {
1585 	case V4L2_EVENT_SOURCE_CHANGE:
1586 		return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
1587 	case V4L2_EVENT_CTRL:
1588 		return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
1589 	default:
1590 		return -EINVAL;
1591 	}
1592 }
1593 
tvp5150_g_tuner(struct v4l2_subdev * sd,struct v4l2_tuner * vt)1594 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1595 {
1596 	int status = tvp5150_read(sd, 0x88);
1597 
1598 	vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1599 	return 0;
1600 }
1601 
tvp5150_registered(struct v4l2_subdev * sd)1602 static int tvp5150_registered(struct v4l2_subdev *sd)
1603 {
1604 #if defined(CONFIG_MEDIA_CONTROLLER)
1605 	struct tvp5150 *decoder = to_tvp5150(sd);
1606 	unsigned int i;
1607 	int ret;
1608 
1609 	/*
1610 	 * Setup connector pads and links. Enable the link to the first
1611 	 * available connector per default.
1612 	 */
1613 	for (i = 0; i < decoder->connectors_num; i++) {
1614 		struct media_entity *con = &decoder->connectors[i].ent;
1615 		struct media_pad *pad = &decoder->connectors[i].pad;
1616 		struct v4l2_fwnode_connector *v4l2c =
1617 			&decoder->connectors[i].base;
1618 		struct v4l2_connector_link *link =
1619 			v4l2_connector_first_link(v4l2c);
1620 		unsigned int port = link->fwnode_link.remote_port;
1621 		unsigned int flags = i ? 0 : MEDIA_LNK_FL_ENABLED;
1622 		bool is_svideo = v4l2c->type == V4L2_CONN_SVIDEO;
1623 
1624 		pad->flags = MEDIA_PAD_FL_SOURCE;
1625 		ret = media_entity_pads_init(con, 1, pad);
1626 		if (ret < 0)
1627 			goto err;
1628 
1629 		ret = media_device_register_entity(sd->v4l2_dev->mdev, con);
1630 		if (ret < 0)
1631 			goto err;
1632 
1633 		ret = media_create_pad_link(con, 0, &sd->entity, port, flags);
1634 		if (ret < 0)
1635 			goto err;
1636 
1637 		if (is_svideo) {
1638 			/*
1639 			 * Check tvp5150_link_setup() comments for more
1640 			 * information.
1641 			 */
1642 			link = v4l2_connector_last_link(v4l2c);
1643 			port = link->fwnode_link.remote_port;
1644 			ret = media_create_pad_link(con, 0, &sd->entity, port,
1645 						    flags);
1646 			if (ret < 0)
1647 				goto err;
1648 		}
1649 
1650 		/* Enable default input. */
1651 		if (flags == MEDIA_LNK_FL_ENABLED) {
1652 			decoder->input =
1653 				is_svideo ? TVP5150_SVIDEO :
1654 				port == 0 ? TVP5150_COMPOSITE0 :
1655 				TVP5150_COMPOSITE1;
1656 
1657 			tvp5150_selmux(sd);
1658 			decoder->cur_connector = &decoder->connectors[i];
1659 			tvp5150_s_std(sd, v4l2c->connector.analog.sdtv_stds);
1660 		}
1661 	}
1662 
1663 	return 0;
1664 
1665 err:
1666 	for (i = 0; i < decoder->connectors_num; i++) {
1667 		media_device_unregister_entity(&decoder->connectors[i].ent);
1668 		media_entity_cleanup(&decoder->connectors[i].ent);
1669 	}
1670 	return ret;
1671 #endif
1672 
1673 	return 0;
1674 }
1675 
tvp5150_open(struct v4l2_subdev * sd,struct v4l2_subdev_fh * fh)1676 static int tvp5150_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1677 {
1678 	return pm_runtime_resume_and_get(sd->dev);
1679 }
1680 
tvp5150_close(struct v4l2_subdev * sd,struct v4l2_subdev_fh * fh)1681 static int tvp5150_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1682 {
1683 	pm_runtime_put(sd->dev);
1684 
1685 	return 0;
1686 }
1687 
1688 /* ----------------------------------------------------------------------- */
1689 
1690 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1691 	.s_ctrl = tvp5150_s_ctrl,
1692 };
1693 
1694 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1695 	.log_status = tvp5150_log_status,
1696 	.reset = tvp5150_reset,
1697 #ifdef CONFIG_VIDEO_ADV_DEBUG
1698 	.g_register = tvp5150_g_register,
1699 	.s_register = tvp5150_s_register,
1700 #endif
1701 	.subscribe_event = tvp5150_subscribe_event,
1702 	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
1703 };
1704 
1705 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1706 	.g_tuner = tvp5150_g_tuner,
1707 };
1708 
1709 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1710 	.s_std = tvp5150_s_std,
1711 	.g_std = tvp5150_g_std,
1712 	.querystd = tvp5150_querystd,
1713 	.s_stream = tvp5150_s_stream,
1714 	.s_routing = tvp5150_s_routing,
1715 };
1716 
1717 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1718 	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1719 	.g_sliced_fmt = tvp5150_g_sliced_fmt,
1720 	.s_sliced_fmt = tvp5150_s_sliced_fmt,
1721 	.s_raw_fmt = tvp5150_s_raw_fmt,
1722 };
1723 
1724 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1725 	.init_cfg = tvp5150_init_cfg,
1726 	.enum_mbus_code = tvp5150_enum_mbus_code,
1727 	.enum_frame_size = tvp5150_enum_frame_size,
1728 	.set_fmt = tvp5150_fill_fmt,
1729 	.get_fmt = tvp5150_fill_fmt,
1730 	.get_selection = tvp5150_get_selection,
1731 	.set_selection = tvp5150_set_selection,
1732 	.get_mbus_config = tvp5150_get_mbus_config,
1733 };
1734 
1735 static const struct v4l2_subdev_ops tvp5150_ops = {
1736 	.core = &tvp5150_core_ops,
1737 	.tuner = &tvp5150_tuner_ops,
1738 	.video = &tvp5150_video_ops,
1739 	.vbi = &tvp5150_vbi_ops,
1740 	.pad = &tvp5150_pad_ops,
1741 };
1742 
1743 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1744 	.registered = tvp5150_registered,
1745 	.open = tvp5150_open,
1746 	.close = tvp5150_close,
1747 };
1748 
1749 /****************************************************************************
1750 			I2C Client & Driver
1751  ****************************************************************************/
1752 
1753 static const struct regmap_range tvp5150_readable_ranges[] = {
1754 	{
1755 		.range_min = TVP5150_VD_IN_SRC_SEL_1,
1756 		.range_max = TVP5150_AUTOSW_MSK,
1757 	}, {
1758 		.range_min = TVP5150_COLOR_KIL_THSH_CTL,
1759 		.range_max = TVP5150_CONF_SHARED_PIN,
1760 	}, {
1761 		.range_min = TVP5150_ACT_VD_CROP_ST_MSB,
1762 		.range_max = TVP5150_HORIZ_SYNC_START,
1763 	}, {
1764 		.range_min = TVP5150_VERT_BLANKING_START,
1765 		.range_max = TVP5150_INTT_CONFIG_REG_B,
1766 	}, {
1767 		.range_min = TVP5150_VIDEO_STD,
1768 		.range_max = TVP5150_VIDEO_STD,
1769 	}, {
1770 		.range_min = TVP5150_CB_GAIN_FACT,
1771 		.range_max = TVP5150_REV_SELECT,
1772 	}, {
1773 		.range_min = TVP5150_MSB_DEV_ID,
1774 		.range_max = TVP5150_STATUS_REG_5,
1775 	}, {
1776 		.range_min = TVP5150_CC_DATA_INI,
1777 		.range_max = TVP5150_TELETEXT_FIL_ENA,
1778 	}, {
1779 		.range_min = TVP5150_INT_STATUS_REG_A,
1780 		.range_max = TVP5150_FIFO_OUT_CTRL,
1781 	}, {
1782 		.range_min = TVP5150_FULL_FIELD_ENA,
1783 		.range_max = TVP5150_FULL_FIELD_MODE_REG,
1784 	},
1785 };
1786 
tvp5150_volatile_reg(struct device * dev,unsigned int reg)1787 static bool tvp5150_volatile_reg(struct device *dev, unsigned int reg)
1788 {
1789 	switch (reg) {
1790 	case TVP5150_VERT_LN_COUNT_MSB:
1791 	case TVP5150_VERT_LN_COUNT_LSB:
1792 	case TVP5150_INT_STATUS_REG_A:
1793 	case TVP5150_INT_STATUS_REG_B:
1794 	case TVP5150_INT_ACTIVE_REG_B:
1795 	case TVP5150_STATUS_REG_1:
1796 	case TVP5150_STATUS_REG_2:
1797 	case TVP5150_STATUS_REG_3:
1798 	case TVP5150_STATUS_REG_4:
1799 	case TVP5150_STATUS_REG_5:
1800 	/* CC, WSS, VPS, VITC data? */
1801 	case TVP5150_VBI_FIFO_READ_DATA:
1802 	case TVP5150_VDP_STATUS_REG:
1803 	case TVP5150_FIFO_WORD_COUNT:
1804 		return true;
1805 	default:
1806 		return false;
1807 	}
1808 }
1809 
1810 static const struct regmap_access_table tvp5150_readable_table = {
1811 	.yes_ranges = tvp5150_readable_ranges,
1812 	.n_yes_ranges = ARRAY_SIZE(tvp5150_readable_ranges),
1813 };
1814 
1815 static struct regmap_config tvp5150_config = {
1816 	.reg_bits = 8,
1817 	.val_bits = 8,
1818 	.max_register = 0xff,
1819 
1820 	.cache_type = REGCACHE_RBTREE,
1821 
1822 	.rd_table = &tvp5150_readable_table,
1823 	.volatile_reg = tvp5150_volatile_reg,
1824 };
1825 
tvp5150_detect_version(struct tvp5150 * core)1826 static int tvp5150_detect_version(struct tvp5150 *core)
1827 {
1828 	struct v4l2_subdev *sd = &core->sd;
1829 	struct i2c_client *c = v4l2_get_subdevdata(sd);
1830 	u8 regs[4];
1831 	int res;
1832 
1833 	/*
1834 	 * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1835 	 * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1836 	 */
1837 	res = regmap_bulk_read(core->regmap, TVP5150_MSB_DEV_ID, regs, 4);
1838 	if (res < 0) {
1839 		dev_err(&c->dev, "reading ID registers failed: %d\n", res);
1840 		return res;
1841 	}
1842 
1843 	core->dev_id = (regs[0] << 8) | regs[1];
1844 	core->rom_ver = (regs[2] << 8) | regs[3];
1845 
1846 	dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1847 		  core->dev_id, regs[2], regs[3], c->addr << 1,
1848 		  c->adapter->name);
1849 
1850 	if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1851 		dev_info(sd->dev, "tvp5150a detected.\n");
1852 	} else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1853 		dev_info(sd->dev, "tvp5150am1 detected.\n");
1854 
1855 		/* ITU-T BT.656.4 timing */
1856 		regmap_write(core->regmap, TVP5150_REV_SELECT, 0);
1857 	} else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1858 		dev_info(sd->dev, "tvp5151 detected.\n");
1859 	} else {
1860 		dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1861 			  core->dev_id);
1862 	}
1863 
1864 	return 0;
1865 }
1866 
tvp5150_init(struct i2c_client * c)1867 static int tvp5150_init(struct i2c_client *c)
1868 {
1869 	struct gpio_desc *pdn_gpio;
1870 	struct gpio_desc *reset_gpio;
1871 
1872 	pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1873 	if (IS_ERR(pdn_gpio))
1874 		return PTR_ERR(pdn_gpio);
1875 
1876 	if (pdn_gpio) {
1877 		gpiod_set_value_cansleep(pdn_gpio, 0);
1878 		/* Delay time between power supplies active and reset */
1879 		msleep(20);
1880 	}
1881 
1882 	reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1883 	if (IS_ERR(reset_gpio))
1884 		return PTR_ERR(reset_gpio);
1885 
1886 	if (reset_gpio) {
1887 		/* RESETB pulse duration */
1888 		ndelay(500);
1889 		gpiod_set_value_cansleep(reset_gpio, 0);
1890 		/* Delay time between end of reset to I2C active */
1891 		usleep_range(200, 250);
1892 	}
1893 
1894 	return 0;
1895 }
1896 
1897 #if defined(CONFIG_MEDIA_CONTROLLER)
tvp5150_mc_init(struct tvp5150 * decoder)1898 static int tvp5150_mc_init(struct tvp5150 *decoder)
1899 {
1900 	struct v4l2_subdev *sd = &decoder->sd;
1901 	unsigned int i;
1902 
1903 	sd->entity.ops = &tvp5150_sd_media_ops;
1904 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1905 
1906 	for (i = 0; i < TVP5150_NUM_PADS - 1; i++) {
1907 		decoder->pads[i].flags = MEDIA_PAD_FL_SINK;
1908 		decoder->pads[i].sig_type = PAD_SIGNAL_ANALOG;
1909 	}
1910 
1911 	decoder->pads[i].flags = MEDIA_PAD_FL_SOURCE;
1912 	decoder->pads[i].sig_type = PAD_SIGNAL_DV;
1913 
1914 	return media_entity_pads_init(&sd->entity, TVP5150_NUM_PADS,
1915 				      decoder->pads);
1916 }
1917 
1918 #else /* !defined(CONFIG_MEDIA_CONTROLLER) */
1919 
tvp5150_mc_init(struct tvp5150 * decoder)1920 static inline int tvp5150_mc_init(struct tvp5150 *decoder)
1921 {
1922 	return 0;
1923 }
1924 #endif /* defined(CONFIG_MEDIA_CONTROLLER) */
1925 
tvp5150_validate_connectors(struct tvp5150 * decoder)1926 static int tvp5150_validate_connectors(struct tvp5150 *decoder)
1927 {
1928 	struct device *dev = decoder->sd.dev;
1929 	struct tvp5150_connector *tvpc;
1930 	struct v4l2_fwnode_connector *v4l2c;
1931 	unsigned int i;
1932 
1933 	if (!decoder->connectors_num) {
1934 		dev_err(dev, "No valid connector found\n");
1935 		return -ENODEV;
1936 	}
1937 
1938 	for (i = 0; i < decoder->connectors_num; i++) {
1939 		struct v4l2_connector_link *link0 = NULL;
1940 		struct v4l2_connector_link *link1;
1941 
1942 		tvpc = &decoder->connectors[i];
1943 		v4l2c = &tvpc->base;
1944 
1945 		if (v4l2c->type == V4L2_CONN_COMPOSITE) {
1946 			if (v4l2c->nr_of_links != 1) {
1947 				dev_err(dev, "Composite: connector needs 1 link\n");
1948 				return -EINVAL;
1949 			}
1950 			link0 = v4l2_connector_first_link(v4l2c);
1951 			if (!link0) {
1952 				dev_err(dev, "Composite: invalid first link\n");
1953 				return -EINVAL;
1954 			}
1955 			if (link0->fwnode_link.remote_id == 1) {
1956 				dev_err(dev, "Composite: invalid endpoint id\n");
1957 				return -EINVAL;
1958 			}
1959 		}
1960 
1961 		if (v4l2c->type == V4L2_CONN_SVIDEO) {
1962 			if (v4l2c->nr_of_links != 2) {
1963 				dev_err(dev, "SVideo: connector needs 2 links\n");
1964 				return -EINVAL;
1965 			}
1966 			link0 = v4l2_connector_first_link(v4l2c);
1967 			if (!link0) {
1968 				dev_err(dev, "SVideo: invalid first link\n");
1969 				return -EINVAL;
1970 			}
1971 			link1 = v4l2_connector_last_link(v4l2c);
1972 			if (link0->fwnode_link.remote_port ==
1973 			    link1->fwnode_link.remote_port) {
1974 				dev_err(dev, "SVideo: invalid link setup\n");
1975 				return -EINVAL;
1976 			}
1977 		}
1978 
1979 		if (!(v4l2c->connector.analog.sdtv_stds & TVP5150_STD_MASK)) {
1980 			dev_err(dev, "Unsupported tv-norm on connector %s\n",
1981 				v4l2c->name);
1982 			return -EINVAL;
1983 		}
1984 	}
1985 
1986 	return 0;
1987 }
1988 
tvp5150_parse_dt(struct tvp5150 * decoder,struct device_node * np)1989 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1990 {
1991 	struct device *dev = decoder->sd.dev;
1992 	struct v4l2_fwnode_endpoint bus_cfg = {
1993 		.bus_type = V4L2_MBUS_UNKNOWN
1994 	};
1995 	struct device_node *ep_np;
1996 	struct tvp5150_connector *tvpc;
1997 	struct v4l2_fwnode_connector *v4l2c;
1998 	unsigned int flags, ep_num;
1999 	unsigned int i;
2000 	int ret;
2001 
2002 	/* At least 1 output and 1 input */
2003 	ep_num = of_graph_get_endpoint_count(np);
2004 	if (ep_num < 2 || ep_num > 5) {
2005 		dev_err(dev, "At least 1 input and 1 output must be connected to the device.\n");
2006 		return -EINVAL;
2007 	}
2008 
2009 	/* Layout if all connectors are used:
2010 	 *
2011 	 * tvp-5150 port@0 (AIP1A)
2012 	 *	endpoint@0 -----------> Comp0-Con  port
2013 	 *	endpoint@1 --------+--> Svideo-Con port
2014 	 * tvp-5150 port@1 (AIP1B) |
2015 	 *	endpoint@1 --------+
2016 	 *	endpoint@0 -----------> Comp1-Con  port
2017 	 * tvp-5150 port@2
2018 	 *	endpoint (video bitstream output at YOUT[0-7] parallel bus)
2019 	 */
2020 	for_each_endpoint_of_node(np, ep_np) {
2021 		struct fwnode_handle *ep_fwnode = of_fwnode_handle(ep_np);
2022 		unsigned int next_connector = decoder->connectors_num;
2023 		struct of_endpoint ep;
2024 
2025 		of_graph_parse_endpoint(ep_np, &ep);
2026 		if (ep.port > 1 || ep.id > 1) {
2027 			dev_dbg(dev, "Ignore connector on port@%u/ep@%u\n",
2028 				ep.port, ep.id);
2029 			continue;
2030 		}
2031 
2032 		tvpc = &decoder->connectors[next_connector];
2033 		v4l2c = &tvpc->base;
2034 
2035 		if (ep.port == 0 || (ep.port == 1 && ep.id == 0)) {
2036 			ret = v4l2_fwnode_connector_parse(ep_fwnode, v4l2c);
2037 			if (ret)
2038 				goto err_put;
2039 			ret = v4l2_fwnode_connector_add_link(ep_fwnode, v4l2c);
2040 			if (ret)
2041 				goto err_put;
2042 			decoder->connectors_num++;
2043 		} else {
2044 			/* Adding the 2nd svideo link */
2045 			for (i = 0; i < TVP5150_MAX_CONNECTORS; i++) {
2046 				tvpc = &decoder->connectors[i];
2047 				v4l2c = &tvpc->base;
2048 				if (v4l2c->type == V4L2_CONN_SVIDEO)
2049 					break;
2050 			}
2051 
2052 			ret = v4l2_fwnode_connector_add_link(ep_fwnode, v4l2c);
2053 			if (ret)
2054 				goto err_put;
2055 		}
2056 	}
2057 
2058 	ret = tvp5150_validate_connectors(decoder);
2059 	if (ret)
2060 		goto err_free;
2061 
2062 	for (i = 0; i < decoder->connectors_num; i++) {
2063 		tvpc = &decoder->connectors[i];
2064 		v4l2c = &tvpc->base;
2065 		tvpc->ent.flags = MEDIA_ENT_FL_CONNECTOR;
2066 		tvpc->ent.function = v4l2c->type == V4L2_CONN_SVIDEO ?
2067 			MEDIA_ENT_F_CONN_SVIDEO : MEDIA_ENT_F_CONN_COMPOSITE;
2068 		tvpc->ent.name = devm_kasprintf(dev, GFP_KERNEL, "%s %s",
2069 						v4l2c->name, v4l2c->label ?
2070 						v4l2c->label : "");
2071 		if (!tvpc->ent.name) {
2072 			ret = -ENOMEM;
2073 			goto err_free;
2074 		}
2075 	}
2076 
2077 	ep_np = of_graph_get_endpoint_by_regs(np, TVP5150_PAD_VID_OUT, 0);
2078 	if (!ep_np) {
2079 		ret = -EINVAL;
2080 		dev_err(dev, "Error no output endpoint available\n");
2081 		goto err_free;
2082 	}
2083 	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_np), &bus_cfg);
2084 	of_node_put(ep_np);
2085 	if (ret)
2086 		goto err_free;
2087 
2088 	flags = bus_cfg.bus.parallel.flags;
2089 	if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
2090 	    !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
2091 	      flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
2092 	      flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
2093 		ret = -EINVAL;
2094 		goto err_free;
2095 	}
2096 
2097 	decoder->mbus_type = bus_cfg.bus_type;
2098 
2099 	return 0;
2100 
2101 err_put:
2102 	of_node_put(ep_np);
2103 err_free:
2104 	for (i = 0; i < TVP5150_MAX_CONNECTORS; i++)
2105 		v4l2_fwnode_connector_free(&decoder->connectors[i].base);
2106 
2107 	return ret;
2108 }
2109 
2110 static const char * const tvp5150_test_patterns[2] = {
2111 	"Disabled",
2112 	"Black screen"
2113 };
2114 
tvp5150_probe(struct i2c_client * c)2115 static int tvp5150_probe(struct i2c_client *c)
2116 {
2117 	struct tvp5150 *core;
2118 	struct v4l2_subdev *sd;
2119 	struct device_node *np = c->dev.of_node;
2120 	struct regmap *map;
2121 	unsigned int i;
2122 	int res;
2123 
2124 	/* Check if the adapter supports the needed features */
2125 	if (!i2c_check_functionality(c->adapter,
2126 	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
2127 		return -EIO;
2128 
2129 	res = tvp5150_init(c);
2130 	if (res)
2131 		return res;
2132 
2133 	core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
2134 	if (!core)
2135 		return -ENOMEM;
2136 
2137 	map = devm_regmap_init_i2c(c, &tvp5150_config);
2138 	if (IS_ERR(map))
2139 		return PTR_ERR(map);
2140 
2141 	core->regmap = map;
2142 	sd = &core->sd;
2143 	v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
2144 	sd->internal_ops = &tvp5150_internal_ops;
2145 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
2146 
2147 	if (IS_ENABLED(CONFIG_OF) && np) {
2148 		res = tvp5150_parse_dt(core, np);
2149 		if (res) {
2150 			dev_err(sd->dev, "DT parsing error: %d\n", res);
2151 			return res;
2152 		}
2153 	} else {
2154 		/* Default to BT.656 embedded sync */
2155 		core->mbus_type = V4L2_MBUS_BT656;
2156 	}
2157 
2158 	res = tvp5150_mc_init(core);
2159 	if (res)
2160 		return res;
2161 
2162 	res = tvp5150_detect_version(core);
2163 	if (res < 0)
2164 		return res;
2165 
2166 	/*
2167 	 * Iterate over all available connectors in case they are supported and
2168 	 * successfully parsed. Fallback to default autodetect in case they
2169 	 * aren't supported.
2170 	 */
2171 	for (i = 0; i < core->connectors_num; i++) {
2172 		struct v4l2_fwnode_connector *v4l2c;
2173 
2174 		v4l2c = &core->connectors[i].base;
2175 		core->norm |= v4l2c->connector.analog.sdtv_stds;
2176 	}
2177 
2178 	if (!core->connectors_num)
2179 		core->norm = V4L2_STD_ALL;
2180 
2181 	core->detected_norm = V4L2_STD_UNKNOWN;
2182 	core->input = TVP5150_COMPOSITE1;
2183 	core->enable = true;
2184 
2185 	v4l2_ctrl_handler_init(&core->hdl, 5);
2186 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
2187 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2188 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
2189 			V4L2_CID_CONTRAST, 0, 255, 1, 128);
2190 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
2191 			V4L2_CID_SATURATION, 0, 255, 1, 128);
2192 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
2193 			V4L2_CID_HUE, -128, 127, 1, 0);
2194 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
2195 			V4L2_CID_PIXEL_RATE, 27000000,
2196 			27000000, 1, 27000000);
2197 	v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
2198 				     V4L2_CID_TEST_PATTERN,
2199 				     ARRAY_SIZE(tvp5150_test_patterns) - 1,
2200 				     0, 0, tvp5150_test_patterns);
2201 	sd->ctrl_handler = &core->hdl;
2202 	if (core->hdl.error) {
2203 		res = core->hdl.error;
2204 		goto err;
2205 	}
2206 
2207 	tvp5150_set_default(tvp5150_read_std(sd), &core->rect);
2208 
2209 	core->irq = c->irq;
2210 	tvp5150_reset(sd, 0);	/* Calls v4l2_ctrl_handler_setup() */
2211 	if (c->irq) {
2212 		res = devm_request_threaded_irq(&c->dev, c->irq, NULL,
2213 						tvp5150_isr, IRQF_TRIGGER_HIGH |
2214 						IRQF_ONESHOT, "tvp5150", core);
2215 		if (res)
2216 			goto err;
2217 	}
2218 
2219 	res = v4l2_async_register_subdev(sd);
2220 	if (res < 0)
2221 		goto err;
2222 
2223 	if (debug > 1)
2224 		tvp5150_log_status(sd);
2225 
2226 	pm_runtime_set_active(&c->dev);
2227 	pm_runtime_enable(&c->dev);
2228 	pm_runtime_idle(&c->dev);
2229 
2230 	return 0;
2231 
2232 err:
2233 	v4l2_ctrl_handler_free(&core->hdl);
2234 	return res;
2235 }
2236 
tvp5150_remove(struct i2c_client * c)2237 static void tvp5150_remove(struct i2c_client *c)
2238 {
2239 	struct v4l2_subdev *sd = i2c_get_clientdata(c);
2240 	struct tvp5150 *decoder = to_tvp5150(sd);
2241 	unsigned int i;
2242 
2243 	dev_dbg_lvl(sd->dev, 1, debug,
2244 		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
2245 		c->addr << 1);
2246 
2247 	for (i = 0; i < decoder->connectors_num; i++)
2248 		v4l2_fwnode_connector_free(&decoder->connectors[i].base);
2249 	for (i = 0; i < decoder->connectors_num; i++) {
2250 		media_device_unregister_entity(&decoder->connectors[i].ent);
2251 		media_entity_cleanup(&decoder->connectors[i].ent);
2252 	}
2253 	v4l2_async_unregister_subdev(sd);
2254 	v4l2_ctrl_handler_free(&decoder->hdl);
2255 	pm_runtime_disable(&c->dev);
2256 	pm_runtime_set_suspended(&c->dev);
2257 }
2258 
2259 /* ----------------------------------------------------------------------- */
2260 
2261 static const struct dev_pm_ops tvp5150_pm_ops = {
2262 	SET_RUNTIME_PM_OPS(tvp5150_runtime_suspend,
2263 			   tvp5150_runtime_resume,
2264 			   NULL)
2265 };
2266 
2267 static const struct i2c_device_id tvp5150_id[] = {
2268 	{ "tvp5150", 0 },
2269 	{ }
2270 };
2271 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
2272 
2273 #if IS_ENABLED(CONFIG_OF)
2274 static const struct of_device_id tvp5150_of_match[] = {
2275 	{ .compatible = "ti,tvp5150", },
2276 	{ /* sentinel */ },
2277 };
2278 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
2279 #endif
2280 
2281 static struct i2c_driver tvp5150_driver = {
2282 	.driver = {
2283 		.of_match_table = of_match_ptr(tvp5150_of_match),
2284 		.name	= "tvp5150",
2285 		.pm	= &tvp5150_pm_ops,
2286 	},
2287 	.probe		= tvp5150_probe,
2288 	.remove		= tvp5150_remove,
2289 	.id_table	= tvp5150_id,
2290 };
2291 
2292 module_i2c_driver(tvp5150_driver);
2293