xref: /openbmc/linux/drivers/media/i2c/tvp5150.c (revision b732539e)
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@infradead.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/module.h>
14 #include <linux/of_graph.h>
15 #include <media/v4l2-async.h>
16 #include <media/v4l2-device.h>
17 #include <media/v4l2-ctrls.h>
18 #include <media/v4l2-fwnode.h>
19 #include <media/v4l2-mc.h>
20 
21 #include "tvp5150_reg.h"
22 
23 #define TVP5150_H_MAX		720U
24 #define TVP5150_V_MAX_525_60	480U
25 #define TVP5150_V_MAX_OTHERS	576U
26 #define TVP5150_MAX_CROP_LEFT	511
27 #define TVP5150_MAX_CROP_TOP	127
28 #define TVP5150_CROP_SHIFT	2
29 
30 MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
31 MODULE_AUTHOR("Mauro Carvalho Chehab");
32 MODULE_LICENSE("GPL v2");
33 
34 
35 static int debug;
36 module_param(debug, int, 0644);
37 MODULE_PARM_DESC(debug, "Debug level (0-2)");
38 
39 #define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
40 
41 struct tvp5150 {
42 	struct v4l2_subdev sd;
43 #ifdef CONFIG_MEDIA_CONTROLLER
44 	struct media_pad pads[DEMOD_NUM_PADS];
45 	struct media_entity input_ent[TVP5150_INPUT_NUM];
46 	struct media_pad input_pad[TVP5150_INPUT_NUM];
47 #endif
48 	struct v4l2_ctrl_handler hdl;
49 	struct v4l2_rect rect;
50 
51 	v4l2_std_id norm;	/* Current set standard */
52 	u32 input;
53 	u32 output;
54 	int enable;
55 
56 	u16 dev_id;
57 	u16 rom_ver;
58 
59 	enum v4l2_mbus_type mbus_type;
60 };
61 
62 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
63 {
64 	return container_of(sd, struct tvp5150, sd);
65 }
66 
67 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
68 {
69 	return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
70 }
71 
72 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
73 {
74 	struct i2c_client *c = v4l2_get_subdevdata(sd);
75 	int rc;
76 
77 	rc = i2c_smbus_read_byte_data(c, addr);
78 	if (rc < 0) {
79 		dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
80 		return rc;
81 	}
82 
83 	dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: read 0x%02x = %02x\n", addr, rc);
84 
85 	return rc;
86 }
87 
88 static int tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
89 				 unsigned char value)
90 {
91 	struct i2c_client *c = v4l2_get_subdevdata(sd);
92 	int rc;
93 
94 	dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: writing %02x %02x\n", addr, value);
95 	rc = i2c_smbus_write_byte_data(c, addr, value);
96 	if (rc < 0)
97 		dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
98 
99 	return rc;
100 }
101 
102 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
103 				const u8 end, int max_line)
104 {
105 	u8 buf[16];
106 	int i = 0, j, len;
107 
108 	if (max_line > 16) {
109 		dprintk0(sd->dev, "too much data to dump\n");
110 		return;
111 	}
112 
113 	for (i = init; i < end; i += max_line) {
114 		len = (end - i > max_line) ? max_line : end - i;
115 
116 		for (j = 0; j < len; j++)
117 			buf[j] = tvp5150_read(sd, i + j);
118 
119 		dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
120 	}
121 }
122 
123 static int tvp5150_log_status(struct v4l2_subdev *sd)
124 {
125 	dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
126 		tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
127 	dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
128 		tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
129 	dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
130 		tvp5150_read(sd, TVP5150_OP_MODE_CTL));
131 	dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
132 		tvp5150_read(sd, TVP5150_MISC_CTL));
133 	dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
134 		tvp5150_read(sd, TVP5150_AUTOSW_MSK));
135 	dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
136 		tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
137 	dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
138 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
139 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
140 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
141 	dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
142 		tvp5150_read(sd, TVP5150_BRIGHT_CTL));
143 	dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
144 		tvp5150_read(sd, TVP5150_SATURATION_CTL));
145 	dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
146 		tvp5150_read(sd, TVP5150_HUE_CTL));
147 	dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
148 		tvp5150_read(sd, TVP5150_CONTRAST_CTL));
149 	dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
150 		tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
151 	dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
152 		tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
153 	dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
154 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
155 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
156 	dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
157 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
158 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
159 	dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
160 		tvp5150_read(sd, TVP5150_GENLOCK));
161 	dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
162 		tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
163 	dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
164 		tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
165 	dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
166 		tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
167 	dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
168 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
169 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
170 	dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
171 		tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
172 	dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
173 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
174 	dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
175 		tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
176 	dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
177 		tvp5150_read(sd, TVP5150_VIDEO_STD));
178 	dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
179 		tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
180 		tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
181 	dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
182 		tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
183 	dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
184 		tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
185 	dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
186 		(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
187 	dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
188 		tvp5150_read(sd, TVP5150_MSB_DEV_ID),
189 		tvp5150_read(sd, TVP5150_LSB_DEV_ID));
190 	dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
191 		tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
192 		tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
193 	dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
194 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
195 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
196 	dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
197 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
198 	dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
199 		tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
200 	dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
201 		tvp5150_read(sd, TVP5150_STATUS_REG_1),
202 		tvp5150_read(sd, TVP5150_STATUS_REG_2),
203 		tvp5150_read(sd, TVP5150_STATUS_REG_3),
204 		tvp5150_read(sd, TVP5150_STATUS_REG_4),
205 		tvp5150_read(sd, TVP5150_STATUS_REG_5));
206 
207 	dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
208 			TVP5150_TELETEXT_FIL1_END, 8);
209 	dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
210 			TVP5150_TELETEXT_FIL2_END, 8);
211 
212 	dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
213 		tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
214 	dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
215 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
216 	dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
217 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
218 	dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
219 		tvp5150_read(sd, TVP5150_INT_CONF));
220 	dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
221 		tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
222 	dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
223 		tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
224 	dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
225 		tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
226 	dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
227 		tvp5150_read(sd, TVP5150_FIFO_RESET));
228 	dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
229 		tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
230 	dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
231 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
232 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
233 	dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
234 		tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
235 	dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
236 		tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
237 	dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
238 		tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
239 
240 	dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
241 			TVP5150_CC_DATA_END, 8);
242 
243 	dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
244 			TVP5150_WSS_DATA_END, 8);
245 
246 	dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
247 			TVP5150_VPS_DATA_END, 8);
248 
249 	dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
250 			TVP5150_VITC_DATA_END, 10);
251 
252 	dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
253 			TVP5150_LINE_MODE_END, 8);
254 	return 0;
255 }
256 
257 /****************************************************************************
258 			Basic functions
259  ****************************************************************************/
260 
261 static void tvp5150_selmux(struct v4l2_subdev *sd)
262 {
263 	int opmode = 0;
264 	struct tvp5150 *decoder = to_tvp5150(sd);
265 	int input = 0;
266 	int val;
267 
268 	/* Only tvp5150am1 and tvp5151 have signal generator support */
269 	if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
270 	    (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
271 		if (!decoder->enable)
272 			input = 8;
273 	}
274 
275 	switch (decoder->input) {
276 	case TVP5150_COMPOSITE1:
277 		input |= 2;
278 		/* fall through */
279 	case TVP5150_COMPOSITE0:
280 		break;
281 	case TVP5150_SVIDEO:
282 	default:
283 		input |= 1;
284 		break;
285 	}
286 
287 	dev_dbg_lvl(sd->dev, 1, debug, "Selecting video route: route input=%i, output=%i => tvp5150 input=%i, opmode=%i\n",
288 			decoder->input, decoder->output,
289 			input, opmode);
290 
291 	tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
292 	tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
293 
294 	/*
295 	 * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
296 	 * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
297 	 * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
298 	 * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
299 	 * INTREQ/GPCL/VBLK to logic 1.
300 	 */
301 	val = tvp5150_read(sd, TVP5150_MISC_CTL);
302 	if (val < 0) {
303 		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, val);
304 		return;
305 	}
306 
307 	if (decoder->input == TVP5150_SVIDEO)
308 		val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
309 	else
310 		val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
311 	tvp5150_write(sd, TVP5150_MISC_CTL, val);
312 };
313 
314 struct i2c_reg_value {
315 	unsigned char reg;
316 	unsigned char value;
317 };
318 
319 /* Default values as sugested at TVP5150AM1 datasheet */
320 static const struct i2c_reg_value tvp5150_init_default[] = {
321 	{ /* 0x00 */
322 		TVP5150_VD_IN_SRC_SEL_1, 0x00
323 	},
324 	{ /* 0x01 */
325 		TVP5150_ANAL_CHL_CTL, 0x15
326 	},
327 	{ /* 0x02 */
328 		TVP5150_OP_MODE_CTL, 0x00
329 	},
330 	{ /* 0x03 */
331 		TVP5150_MISC_CTL, 0x01
332 	},
333 	{ /* 0x06 */
334 		TVP5150_COLOR_KIL_THSH_CTL, 0x10
335 	},
336 	{ /* 0x07 */
337 		TVP5150_LUMA_PROC_CTL_1, 0x60
338 	},
339 	{ /* 0x08 */
340 		TVP5150_LUMA_PROC_CTL_2, 0x00
341 	},
342 	{ /* 0x09 */
343 		TVP5150_BRIGHT_CTL, 0x80
344 	},
345 	{ /* 0x0a */
346 		TVP5150_SATURATION_CTL, 0x80
347 	},
348 	{ /* 0x0b */
349 		TVP5150_HUE_CTL, 0x00
350 	},
351 	{ /* 0x0c */
352 		TVP5150_CONTRAST_CTL, 0x80
353 	},
354 	{ /* 0x0d */
355 		TVP5150_DATA_RATE_SEL, 0x47
356 	},
357 	{ /* 0x0e */
358 		TVP5150_LUMA_PROC_CTL_3, 0x00
359 	},
360 	{ /* 0x0f */
361 		TVP5150_CONF_SHARED_PIN, 0x08
362 	},
363 	{ /* 0x11 */
364 		TVP5150_ACT_VD_CROP_ST_MSB, 0x00
365 	},
366 	{ /* 0x12 */
367 		TVP5150_ACT_VD_CROP_ST_LSB, 0x00
368 	},
369 	{ /* 0x13 */
370 		TVP5150_ACT_VD_CROP_STP_MSB, 0x00
371 	},
372 	{ /* 0x14 */
373 		TVP5150_ACT_VD_CROP_STP_LSB, 0x00
374 	},
375 	{ /* 0x15 */
376 		TVP5150_GENLOCK, 0x01
377 	},
378 	{ /* 0x16 */
379 		TVP5150_HORIZ_SYNC_START, 0x80
380 	},
381 	{ /* 0x18 */
382 		TVP5150_VERT_BLANKING_START, 0x00
383 	},
384 	{ /* 0x19 */
385 		TVP5150_VERT_BLANKING_STOP, 0x00
386 	},
387 	{ /* 0x1a */
388 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
389 	},
390 	{ /* 0x1b */
391 		TVP5150_CHROMA_PROC_CTL_2, 0x14
392 	},
393 	{ /* 0x1c */
394 		TVP5150_INT_RESET_REG_B, 0x00
395 	},
396 	{ /* 0x1d */
397 		TVP5150_INT_ENABLE_REG_B, 0x00
398 	},
399 	{ /* 0x1e */
400 		TVP5150_INTT_CONFIG_REG_B, 0x00
401 	},
402 	{ /* 0x28 */
403 		TVP5150_VIDEO_STD, 0x00
404 	},
405 	{ /* 0x2e */
406 		TVP5150_MACROVISION_ON_CTR, 0x0f
407 	},
408 	{ /* 0x2f */
409 		TVP5150_MACROVISION_OFF_CTR, 0x01
410 	},
411 	{ /* 0xbb */
412 		TVP5150_TELETEXT_FIL_ENA, 0x00
413 	},
414 	{ /* 0xc0 */
415 		TVP5150_INT_STATUS_REG_A, 0x00
416 	},
417 	{ /* 0xc1 */
418 		TVP5150_INT_ENABLE_REG_A, 0x00
419 	},
420 	{ /* 0xc2 */
421 		TVP5150_INT_CONF, 0x04
422 	},
423 	{ /* 0xc8 */
424 		TVP5150_FIFO_INT_THRESHOLD, 0x80
425 	},
426 	{ /* 0xc9 */
427 		TVP5150_FIFO_RESET, 0x00
428 	},
429 	{ /* 0xca */
430 		TVP5150_LINE_NUMBER_INT, 0x00
431 	},
432 	{ /* 0xcb */
433 		TVP5150_PIX_ALIGN_REG_LOW, 0x4e
434 	},
435 	{ /* 0xcc */
436 		TVP5150_PIX_ALIGN_REG_HIGH, 0x00
437 	},
438 	{ /* 0xcd */
439 		TVP5150_FIFO_OUT_CTRL, 0x01
440 	},
441 	{ /* 0xcf */
442 		TVP5150_FULL_FIELD_ENA, 0x00
443 	},
444 	{ /* 0xd0 */
445 		TVP5150_LINE_MODE_INI, 0x00
446 	},
447 	{ /* 0xfc */
448 		TVP5150_FULL_FIELD_MODE_REG, 0x7f
449 	},
450 	{ /* end of data */
451 		0xff, 0xff
452 	}
453 };
454 
455 /* Default values as sugested at TVP5150AM1 datasheet */
456 static const struct i2c_reg_value tvp5150_init_enable[] = {
457 	{
458 		TVP5150_CONF_SHARED_PIN, 2
459 	}, {	/* Automatic offset and AGC enabled */
460 		TVP5150_ANAL_CHL_CTL, 0x15
461 	}, {	/* Activate YCrCb output 0x9 or 0xd ? */
462 		TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
463 				  TVP5150_MISC_CTL_INTREQ_OE |
464 				  TVP5150_MISC_CTL_YCBCR_OE |
465 				  TVP5150_MISC_CTL_SYNC_OE |
466 				  TVP5150_MISC_CTL_VBLANK |
467 				  TVP5150_MISC_CTL_CLOCK_OE,
468 	}, {	/* Activates video std autodetection for all standards */
469 		TVP5150_AUTOSW_MSK, 0x0
470 	}, {	/* Default format: 0x47. For 4:2:2: 0x40 */
471 		TVP5150_DATA_RATE_SEL, 0x47
472 	}, {
473 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
474 	}, {
475 		TVP5150_CHROMA_PROC_CTL_2, 0x54
476 	}, {	/* Non documented, but initialized on WinTV USB2 */
477 		0x27, 0x20
478 	}, {
479 		0xff, 0xff
480 	}
481 };
482 
483 struct tvp5150_vbi_type {
484 	unsigned int vbi_type;
485 	unsigned int ini_line;
486 	unsigned int end_line;
487 	unsigned int by_field :1;
488 };
489 
490 struct i2c_vbi_ram_value {
491 	u16 reg;
492 	struct tvp5150_vbi_type type;
493 	unsigned char values[16];
494 };
495 
496 /* This struct have the values for each supported VBI Standard
497  * by
498  tvp5150_vbi_types should follow the same order as vbi_ram_default
499  * value 0 means rom position 0x10, value 1 means rom position 0x30
500  * and so on. There are 16 possible locations from 0 to 15.
501  */
502 
503 static struct i2c_vbi_ram_value vbi_ram_default[] = {
504 
505 	/*
506 	 * FIXME: Current api doesn't handle all VBI types, those not
507 	 * yet supported are placed under #if 0
508 	 */
509 #if 0
510 	[0] = {0x010, /* Teletext, SECAM, WST System A */
511 		{V4L2_SLICED_TELETEXT_SECAM, 6, 23, 1},
512 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
513 		  0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
514 	},
515 #endif
516 	[1] = {0x030, /* Teletext, PAL, WST System B */
517 		{V4L2_SLICED_TELETEXT_B, 6, 22, 1},
518 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
519 		  0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
520 	},
521 #if 0
522 	[2] = {0x050, /* Teletext, PAL, WST System C */
523 		{V4L2_SLICED_TELETEXT_PAL_C, 6, 22, 1},
524 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
525 		  0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
526 	},
527 	[3] = {0x070, /* Teletext, NTSC, WST System B */
528 		{V4L2_SLICED_TELETEXT_NTSC_B, 10, 21, 1},
529 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
530 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
531 	},
532 	[4] = {0x090, /* Tetetext, NTSC NABTS System C */
533 		{V4L2_SLICED_TELETEXT_NTSC_C, 10, 21, 1},
534 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
535 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
536 	},
537 	[5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
538 		{V4L2_SLICED_TELETEXT_NTSC_D, 10, 21, 1},
539 		{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
540 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
541 	},
542 	[6] = {0x0d0, /* Closed Caption, PAL/SECAM */
543 		{V4L2_SLICED_CAPTION_625, 22, 22, 1},
544 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
545 		  0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
546 	},
547 #endif
548 	[7] = {0x0f0, /* Closed Caption, NTSC */
549 		{V4L2_SLICED_CAPTION_525, 21, 21, 1},
550 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
551 		  0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
552 	},
553 	[8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
554 		{V4L2_SLICED_WSS_625, 23, 23, 1},
555 		{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
556 		  0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
557 	},
558 #if 0
559 	[9] = {0x130, /* Wide Screen Signal, NTSC C */
560 		{V4L2_SLICED_WSS_525, 20, 20, 1},
561 		{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
562 		  0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
563 	},
564 	[10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
565 		{V4l2_SLICED_VITC_625, 6, 22, 0},
566 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
567 		  0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
568 	},
569 	[11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
570 		{V4l2_SLICED_VITC_525, 10, 20, 0},
571 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
572 		  0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
573 	},
574 #endif
575 	[12] = {0x190, /* Video Program System (VPS), PAL */
576 		{V4L2_SLICED_VPS, 16, 16, 0},
577 		{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
578 		  0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
579 	},
580 	/* 0x1d0 User programmable */
581 };
582 
583 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
584 				const struct i2c_reg_value *regs)
585 {
586 	while (regs->reg != 0xff) {
587 		tvp5150_write(sd, regs->reg, regs->value);
588 		regs++;
589 	}
590 	return 0;
591 }
592 
593 static int tvp5150_vdp_init(struct v4l2_subdev *sd)
594 {
595 	unsigned int i;
596 	int j;
597 
598 	/* Disable Full Field */
599 	tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
600 
601 	/* Before programming, Line mode should be at 0xff */
602 	for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
603 		tvp5150_write(sd, i, 0xff);
604 
605 	/* Load Ram Table */
606 	for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
607 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
608 
609 		if (!regs->type.vbi_type)
610 			continue;
611 
612 		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
613 		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
614 
615 		for (i = 0; i < 16; i++)
616 			tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
617 	}
618 	return 0;
619 }
620 
621 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
622 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
623 				struct v4l2_sliced_vbi_cap *cap)
624 {
625 	int line, i;
626 
627 	dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
628 	memset(cap, 0, sizeof(*cap));
629 
630 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
631 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
632 
633 		if (!regs->type.vbi_type)
634 			continue;
635 
636 		for (line = regs->type.ini_line;
637 		     line <= regs->type.end_line;
638 		     line++) {
639 			cap->service_lines[0][line] |= regs->type.vbi_type;
640 		}
641 		cap->service_set |= regs->type.vbi_type;
642 	}
643 	return 0;
644 }
645 
646 /* Set vbi processing
647  * type - one of tvp5150_vbi_types
648  * line - line to gather data
649  * fields: bit 0 field1, bit 1, field2
650  * flags (default=0xf0) is a bitmask, were set means:
651  *	bit 7: enable filtering null bytes on CC
652  *	bit 6: send data also to FIFO
653  *	bit 5: don't allow data with errors on FIFO
654  *	bit 4: enable ECC when possible
655  * pix_align = pix alignment:
656  *	LSB = field1
657  *	MSB = field2
658  */
659 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
660 			unsigned int type, u8 flags, int line,
661 			const int fields)
662 {
663 	struct tvp5150 *decoder = to_tvp5150(sd);
664 	v4l2_std_id std = decoder->norm;
665 	u8 reg;
666 	int i, pos = 0;
667 
668 	if (std == V4L2_STD_ALL) {
669 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
670 		return 0;
671 	} else if (std & V4L2_STD_625_50) {
672 		/* Don't follow NTSC Line number convension */
673 		line += 3;
674 	}
675 
676 	if (line < 6 || line > 27)
677 		return 0;
678 
679 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
680 		const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
681 
682 		if (!regs->type.vbi_type)
683 			continue;
684 
685 		if ((type & regs->type.vbi_type) &&
686 		    (line >= regs->type.ini_line) &&
687 		    (line <= regs->type.end_line))
688 			break;
689 		pos++;
690 	}
691 
692 	type = pos | (flags & 0xf0);
693 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
694 
695 	if (fields & 1)
696 		tvp5150_write(sd, reg, type);
697 
698 	if (fields & 2)
699 		tvp5150_write(sd, reg + 1, type);
700 
701 	return type;
702 }
703 
704 static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
705 {
706 	struct tvp5150 *decoder = to_tvp5150(sd);
707 	v4l2_std_id std = decoder->norm;
708 	u8 reg;
709 	int pos, type = 0;
710 	int i, ret = 0;
711 
712 	if (std == V4L2_STD_ALL) {
713 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
714 		return 0;
715 	} else if (std & V4L2_STD_625_50) {
716 		/* Don't follow NTSC Line number convension */
717 		line += 3;
718 	}
719 
720 	if (line < 6 || line > 27)
721 		return 0;
722 
723 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
724 
725 	for (i = 0; i <= 1; i++) {
726 		ret = tvp5150_read(sd, reg + i);
727 		if (ret < 0) {
728 			dev_err(sd->dev, "%s: failed with error = %d\n",
729 				 __func__, ret);
730 			return 0;
731 		}
732 		pos = ret & 0x0f;
733 		if (pos < ARRAY_SIZE(vbi_ram_default))
734 			type |= vbi_ram_default[pos].type.vbi_type;
735 	}
736 
737 	return type;
738 }
739 
740 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
741 {
742 	struct tvp5150 *decoder = to_tvp5150(sd);
743 	int fmt = 0;
744 
745 	decoder->norm = std;
746 
747 	/* First tests should be against specific std */
748 
749 	if (std == V4L2_STD_NTSC_443) {
750 		fmt = VIDEO_STD_NTSC_4_43_BIT;
751 	} else if (std == V4L2_STD_PAL_M) {
752 		fmt = VIDEO_STD_PAL_M_BIT;
753 	} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
754 		fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
755 	} else {
756 		/* Then, test against generic ones */
757 		if (std & V4L2_STD_NTSC)
758 			fmt = VIDEO_STD_NTSC_MJ_BIT;
759 		else if (std & V4L2_STD_PAL)
760 			fmt = VIDEO_STD_PAL_BDGHIN_BIT;
761 		else if (std & V4L2_STD_SECAM)
762 			fmt = VIDEO_STD_SECAM_BIT;
763 	}
764 
765 	dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
766 	tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
767 	return 0;
768 }
769 
770 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
771 {
772 	struct tvp5150 *decoder = to_tvp5150(sd);
773 
774 	if (decoder->norm == std)
775 		return 0;
776 
777 	/* Change cropping height limits */
778 	if (std & V4L2_STD_525_60)
779 		decoder->rect.height = TVP5150_V_MAX_525_60;
780 	else
781 		decoder->rect.height = TVP5150_V_MAX_OTHERS;
782 
783 
784 	return tvp5150_set_std(sd, std);
785 }
786 
787 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
788 {
789 	struct tvp5150 *decoder = to_tvp5150(sd);
790 
791 	/* Initializes TVP5150 to its default values */
792 	tvp5150_write_inittab(sd, tvp5150_init_default);
793 
794 	/* Initializes VDP registers */
795 	tvp5150_vdp_init(sd);
796 
797 	/* Selects decoder input */
798 	tvp5150_selmux(sd);
799 
800 	/* Initializes TVP5150 to stream enabled values */
801 	tvp5150_write_inittab(sd, tvp5150_init_enable);
802 
803 	/* Initialize image preferences */
804 	v4l2_ctrl_handler_setup(&decoder->hdl);
805 
806 	tvp5150_set_std(sd, decoder->norm);
807 
808 	if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
809 		tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);
810 
811 	return 0;
812 };
813 
814 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
815 {
816 	struct v4l2_subdev *sd = to_sd(ctrl);
817 	struct tvp5150 *decoder = to_tvp5150(sd);
818 
819 	switch (ctrl->id) {
820 	case V4L2_CID_BRIGHTNESS:
821 		tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
822 		return 0;
823 	case V4L2_CID_CONTRAST:
824 		tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
825 		return 0;
826 	case V4L2_CID_SATURATION:
827 		tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
828 		return 0;
829 	case V4L2_CID_HUE:
830 		tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
831 		break;
832 	case V4L2_CID_TEST_PATTERN:
833 		decoder->enable = ctrl->val ? false : true;
834 		tvp5150_selmux(sd);
835 		return 0;
836 	}
837 	return -EINVAL;
838 }
839 
840 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
841 {
842 	int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
843 
844 	switch (val & 0x0F) {
845 	case 0x01:
846 		return V4L2_STD_NTSC;
847 	case 0x03:
848 		return V4L2_STD_PAL;
849 	case 0x05:
850 		return V4L2_STD_PAL_M;
851 	case 0x07:
852 		return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
853 	case 0x09:
854 		return V4L2_STD_NTSC_443;
855 	case 0xb:
856 		return V4L2_STD_SECAM;
857 	default:
858 		return V4L2_STD_UNKNOWN;
859 	}
860 }
861 
862 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
863 		struct v4l2_subdev_pad_config *cfg,
864 		struct v4l2_subdev_format *format)
865 {
866 	struct v4l2_mbus_framefmt *f;
867 	struct tvp5150 *decoder = to_tvp5150(sd);
868 
869 	if (!format || (format->pad != DEMOD_PAD_VID_OUT))
870 		return -EINVAL;
871 
872 	f = &format->format;
873 
874 	f->width = decoder->rect.width;
875 	f->height = decoder->rect.height;
876 
877 	f->code = MEDIA_BUS_FMT_UYVY8_2X8;
878 	f->field = V4L2_FIELD_ALTERNATE;
879 	f->colorspace = V4L2_COLORSPACE_SMPTE170M;
880 
881 	dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
882 			f->height);
883 	return 0;
884 }
885 
886 static int tvp5150_set_selection(struct v4l2_subdev *sd,
887 				 struct v4l2_subdev_pad_config *cfg,
888 				 struct v4l2_subdev_selection *sel)
889 {
890 	struct tvp5150 *decoder = to_tvp5150(sd);
891 	struct v4l2_rect rect = sel->r;
892 	v4l2_std_id std;
893 	int hmax;
894 
895 	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
896 	    sel->target != V4L2_SEL_TGT_CROP)
897 		return -EINVAL;
898 
899 	dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
900 		__func__, rect.left, rect.top, rect.width, rect.height);
901 
902 	/* tvp5150 has some special limits */
903 	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
904 	rect.width = clamp_t(unsigned int, rect.width,
905 			     TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
906 			     TVP5150_H_MAX - rect.left);
907 	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
908 
909 	/* Calculate height based on current standard */
910 	if (decoder->norm == V4L2_STD_ALL)
911 		std = tvp5150_read_std(sd);
912 	else
913 		std = decoder->norm;
914 
915 	if (std & V4L2_STD_525_60)
916 		hmax = TVP5150_V_MAX_525_60;
917 	else
918 		hmax = TVP5150_V_MAX_OTHERS;
919 
920 	rect.height = clamp_t(unsigned int, rect.height,
921 			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
922 			      hmax - rect.top);
923 
924 	tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
925 	tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
926 		      rect.top + rect.height - hmax);
927 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
928 		      rect.left >> TVP5150_CROP_SHIFT);
929 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
930 		      rect.left | (1 << TVP5150_CROP_SHIFT));
931 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
932 		      (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
933 		      TVP5150_CROP_SHIFT);
934 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
935 		      rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
936 
937 	decoder->rect = rect;
938 
939 	return 0;
940 }
941 
942 static int tvp5150_get_selection(struct v4l2_subdev *sd,
943 				 struct v4l2_subdev_pad_config *cfg,
944 				 struct v4l2_subdev_selection *sel)
945 {
946 	struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
947 	v4l2_std_id std;
948 
949 	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
950 		return -EINVAL;
951 
952 	switch (sel->target) {
953 	case V4L2_SEL_TGT_CROP_BOUNDS:
954 	case V4L2_SEL_TGT_CROP_DEFAULT:
955 		sel->r.left = 0;
956 		sel->r.top = 0;
957 		sel->r.width = TVP5150_H_MAX;
958 
959 		/* Calculate height based on current standard */
960 		if (decoder->norm == V4L2_STD_ALL)
961 			std = tvp5150_read_std(sd);
962 		else
963 			std = decoder->norm;
964 		if (std & V4L2_STD_525_60)
965 			sel->r.height = TVP5150_V_MAX_525_60;
966 		else
967 			sel->r.height = TVP5150_V_MAX_OTHERS;
968 		return 0;
969 	case V4L2_SEL_TGT_CROP:
970 		sel->r = decoder->rect;
971 		return 0;
972 	default:
973 		return -EINVAL;
974 	}
975 }
976 
977 static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
978 				 struct v4l2_mbus_config *cfg)
979 {
980 	struct tvp5150 *decoder = to_tvp5150(sd);
981 
982 	cfg->type = decoder->mbus_type;
983 	cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
984 		   | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
985 
986 	return 0;
987 }
988 
989 /****************************************************************************
990 			V4L2 subdev pad ops
991  ****************************************************************************/
992 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
993 		struct v4l2_subdev_pad_config *cfg,
994 		struct v4l2_subdev_mbus_code_enum *code)
995 {
996 	if (code->pad || code->index)
997 		return -EINVAL;
998 
999 	code->code = MEDIA_BUS_FMT_UYVY8_2X8;
1000 	return 0;
1001 }
1002 
1003 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1004 				   struct v4l2_subdev_pad_config *cfg,
1005 				   struct v4l2_subdev_frame_size_enum *fse)
1006 {
1007 	struct tvp5150 *decoder = to_tvp5150(sd);
1008 
1009 	if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
1010 		return -EINVAL;
1011 
1012 	fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
1013 	fse->min_width = decoder->rect.width;
1014 	fse->max_width = decoder->rect.width;
1015 	fse->min_height = decoder->rect.height / 2;
1016 	fse->max_height = decoder->rect.height / 2;
1017 
1018 	return 0;
1019 }
1020 
1021 /****************************************************************************
1022 			Media entity ops
1023  ****************************************************************************/
1024 
1025 #ifdef CONFIG_MEDIA_CONTROLLER
1026 static int tvp5150_link_setup(struct media_entity *entity,
1027 			      const struct media_pad *local,
1028 			      const struct media_pad *remote, u32 flags)
1029 {
1030 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1031 	struct tvp5150 *decoder = to_tvp5150(sd);
1032 	int i;
1033 
1034 	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1035 		if (remote->entity == &decoder->input_ent[i])
1036 			break;
1037 	}
1038 
1039 	/* Do nothing for entities that are not input connectors */
1040 	if (i == TVP5150_INPUT_NUM)
1041 		return 0;
1042 
1043 	decoder->input = i;
1044 
1045 	tvp5150_selmux(sd);
1046 
1047 	return 0;
1048 }
1049 
1050 static const struct media_entity_operations tvp5150_sd_media_ops = {
1051 	.link_setup = tvp5150_link_setup,
1052 };
1053 #endif
1054 
1055 /****************************************************************************
1056 			I2C Command
1057  ****************************************************************************/
1058 
1059 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1060 {
1061 	struct tvp5150 *decoder = to_tvp5150(sd);
1062 	int val;
1063 
1064 	/* Enable or disable the video output signals. */
1065 	val = tvp5150_read(sd, TVP5150_MISC_CTL);
1066 	if (val < 0)
1067 		return val;
1068 
1069 	val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1070 		 TVP5150_MISC_CTL_CLOCK_OE);
1071 
1072 	if (enable) {
1073 		/*
1074 		 * Enable the YCbCr and clock outputs. In discrete sync mode
1075 		 * (non-BT.656) additionally enable the the sync outputs.
1076 		 */
1077 		val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
1078 		if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
1079 			val |= TVP5150_MISC_CTL_SYNC_OE;
1080 	}
1081 
1082 	tvp5150_write(sd, TVP5150_MISC_CTL, val);
1083 
1084 	return 0;
1085 }
1086 
1087 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1088 			     u32 input, u32 output, u32 config)
1089 {
1090 	struct tvp5150 *decoder = to_tvp5150(sd);
1091 
1092 	decoder->input = input;
1093 	decoder->output = output;
1094 
1095 	if (output == TVP5150_BLACK_SCREEN)
1096 		decoder->enable = false;
1097 	else
1098 		decoder->enable = true;
1099 
1100 	tvp5150_selmux(sd);
1101 	return 0;
1102 }
1103 
1104 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1105 {
1106 	/*
1107 	 * this is for capturing 36 raw vbi lines
1108 	 * if there's a way to cut off the beginning 2 vbi lines
1109 	 * with the tvp5150 then the vbi line count could be lowered
1110 	 * to 17 lines/field again, although I couldn't find a register
1111 	 * which could do that cropping
1112 	 */
1113 
1114 	if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1115 		tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
1116 	if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1117 		tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
1118 		tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
1119 	}
1120 	return 0;
1121 }
1122 
1123 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1124 {
1125 	int i;
1126 
1127 	if (svbi->service_set != 0) {
1128 		for (i = 0; i <= 23; i++) {
1129 			svbi->service_lines[1][i] = 0;
1130 			svbi->service_lines[0][i] =
1131 				tvp5150_set_vbi(sd, svbi->service_lines[0][i],
1132 						0xf0, i, 3);
1133 		}
1134 		/* Enables FIFO */
1135 		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
1136 	} else {
1137 		/* Disables FIFO*/
1138 		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
1139 
1140 		/* Disable Full Field */
1141 		tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
1142 
1143 		/* Disable Line modes */
1144 		for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1145 			tvp5150_write(sd, i, 0xff);
1146 	}
1147 	return 0;
1148 }
1149 
1150 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1151 {
1152 	int i, mask = 0;
1153 
1154 	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1155 
1156 	for (i = 0; i <= 23; i++) {
1157 		svbi->service_lines[0][i] =
1158 			tvp5150_get_vbi(sd, i);
1159 		mask |= svbi->service_lines[0][i];
1160 	}
1161 	svbi->service_set = mask;
1162 	return 0;
1163 }
1164 
1165 #ifdef CONFIG_VIDEO_ADV_DEBUG
1166 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1167 {
1168 	int res;
1169 
1170 	res = tvp5150_read(sd, reg->reg & 0xff);
1171 	if (res < 0) {
1172 		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1173 		return res;
1174 	}
1175 
1176 	reg->val = res;
1177 	reg->size = 1;
1178 	return 0;
1179 }
1180 
1181 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1182 {
1183 	return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1184 }
1185 #endif
1186 
1187 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1188 {
1189 	int status = tvp5150_read(sd, 0x88);
1190 
1191 	vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1192 	return 0;
1193 }
1194 
1195 static int tvp5150_registered(struct v4l2_subdev *sd)
1196 {
1197 #ifdef CONFIG_MEDIA_CONTROLLER
1198 	struct tvp5150 *decoder = to_tvp5150(sd);
1199 	int ret = 0;
1200 	int i;
1201 
1202 	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1203 		struct media_entity *input = &decoder->input_ent[i];
1204 		struct media_pad *pad = &decoder->input_pad[i];
1205 
1206 		if (!input->name)
1207 			continue;
1208 
1209 		decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1210 
1211 		ret = media_entity_pads_init(input, 1, pad);
1212 		if (ret < 0)
1213 			return ret;
1214 
1215 		ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1216 		if (ret < 0)
1217 			return ret;
1218 
1219 		ret = media_create_pad_link(input, 0, &sd->entity,
1220 					    DEMOD_PAD_IF_INPUT, 0);
1221 		if (ret < 0) {
1222 			media_device_unregister_entity(input);
1223 			return ret;
1224 		}
1225 	}
1226 #endif
1227 
1228 	return 0;
1229 }
1230 
1231 /* ----------------------------------------------------------------------- */
1232 
1233 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1234 	.s_ctrl = tvp5150_s_ctrl,
1235 };
1236 
1237 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1238 	.log_status = tvp5150_log_status,
1239 	.reset = tvp5150_reset,
1240 #ifdef CONFIG_VIDEO_ADV_DEBUG
1241 	.g_register = tvp5150_g_register,
1242 	.s_register = tvp5150_s_register,
1243 #endif
1244 };
1245 
1246 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1247 	.g_tuner = tvp5150_g_tuner,
1248 };
1249 
1250 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1251 	.s_std = tvp5150_s_std,
1252 	.s_stream = tvp5150_s_stream,
1253 	.s_routing = tvp5150_s_routing,
1254 	.g_mbus_config = tvp5150_g_mbus_config,
1255 };
1256 
1257 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1258 	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1259 	.g_sliced_fmt = tvp5150_g_sliced_fmt,
1260 	.s_sliced_fmt = tvp5150_s_sliced_fmt,
1261 	.s_raw_fmt = tvp5150_s_raw_fmt,
1262 };
1263 
1264 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1265 	.enum_mbus_code = tvp5150_enum_mbus_code,
1266 	.enum_frame_size = tvp5150_enum_frame_size,
1267 	.set_fmt = tvp5150_fill_fmt,
1268 	.get_fmt = tvp5150_fill_fmt,
1269 	.get_selection = tvp5150_get_selection,
1270 	.set_selection = tvp5150_set_selection,
1271 };
1272 
1273 static const struct v4l2_subdev_ops tvp5150_ops = {
1274 	.core = &tvp5150_core_ops,
1275 	.tuner = &tvp5150_tuner_ops,
1276 	.video = &tvp5150_video_ops,
1277 	.vbi = &tvp5150_vbi_ops,
1278 	.pad = &tvp5150_pad_ops,
1279 };
1280 
1281 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1282 	.registered = tvp5150_registered,
1283 };
1284 
1285 
1286 /****************************************************************************
1287 			I2C Client & Driver
1288  ****************************************************************************/
1289 
1290 static int tvp5150_detect_version(struct tvp5150 *core)
1291 {
1292 	struct v4l2_subdev *sd = &core->sd;
1293 	struct i2c_client *c = v4l2_get_subdevdata(sd);
1294 	unsigned int i;
1295 	u8 regs[4];
1296 	int res;
1297 
1298 	/*
1299 	 * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1300 	 * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1301 	 */
1302 	for (i = 0; i < 4; i++) {
1303 		res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1304 		if (res < 0)
1305 			return res;
1306 		regs[i] = res;
1307 	}
1308 
1309 	core->dev_id = (regs[0] << 8) | regs[1];
1310 	core->rom_ver = (regs[2] << 8) | regs[3];
1311 
1312 	dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1313 		  core->dev_id, regs[2], regs[3], c->addr << 1,
1314 		  c->adapter->name);
1315 
1316 	if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1317 		dev_info(sd->dev, "tvp5150a detected.\n");
1318 	} else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1319 		dev_info(sd->dev, "tvp5150am1 detected.\n");
1320 
1321 		/* ITU-T BT.656.4 timing */
1322 		tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1323 	} else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1324 		dev_info(sd->dev, "tvp5151 detected.\n");
1325 	} else {
1326 		dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1327 			  core->dev_id);
1328 	}
1329 
1330 	return 0;
1331 }
1332 
1333 static int tvp5150_init(struct i2c_client *c)
1334 {
1335 	struct gpio_desc *pdn_gpio;
1336 	struct gpio_desc *reset_gpio;
1337 
1338 	pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1339 	if (IS_ERR(pdn_gpio))
1340 		return PTR_ERR(pdn_gpio);
1341 
1342 	if (pdn_gpio) {
1343 		gpiod_set_value_cansleep(pdn_gpio, 0);
1344 		/* Delay time between power supplies active and reset */
1345 		msleep(20);
1346 	}
1347 
1348 	reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1349 	if (IS_ERR(reset_gpio))
1350 		return PTR_ERR(reset_gpio);
1351 
1352 	if (reset_gpio) {
1353 		/* RESETB pulse duration */
1354 		ndelay(500);
1355 		gpiod_set_value_cansleep(reset_gpio, 0);
1356 		/* Delay time between end of reset to I2C active */
1357 		usleep_range(200, 250);
1358 	}
1359 
1360 	return 0;
1361 }
1362 
1363 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1364 {
1365 	struct v4l2_fwnode_endpoint bus_cfg;
1366 	struct device_node *ep;
1367 #ifdef CONFIG_MEDIA_CONTROLLER
1368 	struct device_node *connectors, *child;
1369 	struct media_entity *input;
1370 	const char *name;
1371 	u32 input_type;
1372 #endif
1373 	unsigned int flags;
1374 	int ret = 0;
1375 
1376 	ep = of_graph_get_next_endpoint(np, NULL);
1377 	if (!ep)
1378 		return -EINVAL;
1379 
1380 	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
1381 	if (ret)
1382 		goto err;
1383 
1384 	flags = bus_cfg.bus.parallel.flags;
1385 
1386 	if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1387 	    !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1388 	      flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1389 	      flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1390 		ret = -EINVAL;
1391 		goto err;
1392 	}
1393 
1394 	decoder->mbus_type = bus_cfg.bus_type;
1395 
1396 #ifdef CONFIG_MEDIA_CONTROLLER
1397 	connectors = of_get_child_by_name(np, "connectors");
1398 
1399 	if (!connectors)
1400 		goto err;
1401 
1402 	for_each_available_child_of_node(connectors, child) {
1403 		ret = of_property_read_u32(child, "input", &input_type);
1404 		if (ret) {
1405 			dev_err(decoder->sd.dev,
1406 				 "missing type property in node %s\n",
1407 				 child->name);
1408 			goto err_connector;
1409 		}
1410 
1411 		if (input_type >= TVP5150_INPUT_NUM) {
1412 			ret = -EINVAL;
1413 			goto err_connector;
1414 		}
1415 
1416 		input = &decoder->input_ent[input_type];
1417 
1418 		/* Each input connector can only be defined once */
1419 		if (input->name) {
1420 			dev_err(decoder->sd.dev,
1421 				 "input %s with same type already exists\n",
1422 				 input->name);
1423 			ret = -EINVAL;
1424 			goto err_connector;
1425 		}
1426 
1427 		switch (input_type) {
1428 		case TVP5150_COMPOSITE0:
1429 		case TVP5150_COMPOSITE1:
1430 			input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1431 			break;
1432 		case TVP5150_SVIDEO:
1433 			input->function = MEDIA_ENT_F_CONN_SVIDEO;
1434 			break;
1435 		}
1436 
1437 		input->flags = MEDIA_ENT_FL_CONNECTOR;
1438 
1439 		ret = of_property_read_string(child, "label", &name);
1440 		if (ret < 0) {
1441 			dev_err(decoder->sd.dev,
1442 				 "missing label property in node %s\n",
1443 				 child->name);
1444 			goto err_connector;
1445 		}
1446 
1447 		input->name = name;
1448 	}
1449 
1450 err_connector:
1451 	of_node_put(connectors);
1452 #endif
1453 err:
1454 	of_node_put(ep);
1455 	return ret;
1456 }
1457 
1458 static const char * const tvp5150_test_patterns[2] = {
1459 	"Disabled",
1460 	"Black screen"
1461 };
1462 
1463 static int tvp5150_probe(struct i2c_client *c,
1464 			 const struct i2c_device_id *id)
1465 {
1466 	struct tvp5150 *core;
1467 	struct v4l2_subdev *sd;
1468 	struct device_node *np = c->dev.of_node;
1469 	int res;
1470 
1471 	/* Check if the adapter supports the needed features */
1472 	if (!i2c_check_functionality(c->adapter,
1473 	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1474 		return -EIO;
1475 
1476 	res = tvp5150_init(c);
1477 	if (res)
1478 		return res;
1479 
1480 	core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1481 	if (!core)
1482 		return -ENOMEM;
1483 
1484 	sd = &core->sd;
1485 
1486 	if (IS_ENABLED(CONFIG_OF) && np) {
1487 		res = tvp5150_parse_dt(core, np);
1488 		if (res) {
1489 			dev_err(sd->dev, "DT parsing error: %d\n", res);
1490 			return res;
1491 		}
1492 	} else {
1493 		/* Default to BT.656 embedded sync */
1494 		core->mbus_type = V4L2_MBUS_BT656;
1495 	}
1496 
1497 	v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1498 	sd->internal_ops = &tvp5150_internal_ops;
1499 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1500 
1501 #if defined(CONFIG_MEDIA_CONTROLLER)
1502 	core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1503 	core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1504 	core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
1505 
1506 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1507 
1508 	res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
1509 	if (res < 0)
1510 		return res;
1511 
1512 	sd->entity.ops = &tvp5150_sd_media_ops;
1513 #endif
1514 
1515 	res = tvp5150_detect_version(core);
1516 	if (res < 0)
1517 		return res;
1518 
1519 	core->norm = V4L2_STD_ALL;	/* Default is autodetect */
1520 	core->input = TVP5150_COMPOSITE1;
1521 	core->enable = true;
1522 
1523 	v4l2_ctrl_handler_init(&core->hdl, 5);
1524 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1525 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1526 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1527 			V4L2_CID_CONTRAST, 0, 255, 1, 128);
1528 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1529 			V4L2_CID_SATURATION, 0, 255, 1, 128);
1530 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1531 			V4L2_CID_HUE, -128, 127, 1, 0);
1532 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1533 			V4L2_CID_PIXEL_RATE, 27000000,
1534 			27000000, 1, 27000000);
1535 	v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1536 				     V4L2_CID_TEST_PATTERN,
1537 				     ARRAY_SIZE(tvp5150_test_patterns),
1538 				     0, 0, tvp5150_test_patterns);
1539 	sd->ctrl_handler = &core->hdl;
1540 	if (core->hdl.error) {
1541 		res = core->hdl.error;
1542 		goto err;
1543 	}
1544 
1545 	/* Default is no cropping */
1546 	core->rect.top = 0;
1547 	if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1548 		core->rect.height = TVP5150_V_MAX_525_60;
1549 	else
1550 		core->rect.height = TVP5150_V_MAX_OTHERS;
1551 	core->rect.left = 0;
1552 	core->rect.width = TVP5150_H_MAX;
1553 
1554 	tvp5150_reset(sd, 0);	/* Calls v4l2_ctrl_handler_setup() */
1555 
1556 	res = v4l2_async_register_subdev(sd);
1557 	if (res < 0)
1558 		goto err;
1559 
1560 	if (debug > 1)
1561 		tvp5150_log_status(sd);
1562 	return 0;
1563 
1564 err:
1565 	v4l2_ctrl_handler_free(&core->hdl);
1566 	return res;
1567 }
1568 
1569 static int tvp5150_remove(struct i2c_client *c)
1570 {
1571 	struct v4l2_subdev *sd = i2c_get_clientdata(c);
1572 	struct tvp5150 *decoder = to_tvp5150(sd);
1573 
1574 	dev_dbg_lvl(sd->dev, 1, debug,
1575 		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1576 		c->addr << 1);
1577 
1578 	v4l2_async_unregister_subdev(sd);
1579 	v4l2_ctrl_handler_free(&decoder->hdl);
1580 	return 0;
1581 }
1582 
1583 /* ----------------------------------------------------------------------- */
1584 
1585 static const struct i2c_device_id tvp5150_id[] = {
1586 	{ "tvp5150", 0 },
1587 	{ }
1588 };
1589 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1590 
1591 #if IS_ENABLED(CONFIG_OF)
1592 static const struct of_device_id tvp5150_of_match[] = {
1593 	{ .compatible = "ti,tvp5150", },
1594 	{ /* sentinel */ },
1595 };
1596 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1597 #endif
1598 
1599 static struct i2c_driver tvp5150_driver = {
1600 	.driver = {
1601 		.of_match_table = of_match_ptr(tvp5150_of_match),
1602 		.name	= "tvp5150",
1603 	},
1604 	.probe		= tvp5150_probe,
1605 	.remove		= tvp5150_remove,
1606 	.id_table	= tvp5150_id,
1607 };
1608 
1609 module_i2c_driver(tvp5150_driver);
1610