xref: /linux/drivers/media/i2c/tvp5150.c (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
1 /*
2  * tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
3  *
4  * Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
5  * This code is placed under the terms of the GNU General Public License v2
6  */
7 
8 #include <linux/i2c.h>
9 #include <linux/slab.h>
10 #include <linux/videodev2.h>
11 #include <linux/delay.h>
12 #include <linux/module.h>
13 #include <media/v4l2-device.h>
14 #include <media/tvp5150.h>
15 #include <media/v4l2-ctrls.h>
16 
17 #include "tvp5150_reg.h"
18 
19 #define TVP5150_H_MAX		720U
20 #define TVP5150_V_MAX_525_60	480U
21 #define TVP5150_V_MAX_OTHERS	576U
22 #define TVP5150_MAX_CROP_LEFT	511
23 #define TVP5150_MAX_CROP_TOP	127
24 #define TVP5150_CROP_SHIFT	2
25 
26 MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
27 MODULE_AUTHOR("Mauro Carvalho Chehab");
28 MODULE_LICENSE("GPL");
29 
30 
31 static int debug;
32 module_param(debug, int, 0644);
33 MODULE_PARM_DESC(debug, "Debug level (0-2)");
34 
35 struct tvp5150 {
36 	struct v4l2_subdev sd;
37 	struct v4l2_ctrl_handler hdl;
38 	struct v4l2_rect rect;
39 
40 	v4l2_std_id norm;	/* Current set standard */
41 	u32 input;
42 	u32 output;
43 	int enable;
44 };
45 
46 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
47 {
48 	return container_of(sd, struct tvp5150, sd);
49 }
50 
51 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
52 {
53 	return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
54 }
55 
56 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
57 {
58 	struct i2c_client *c = v4l2_get_subdevdata(sd);
59 	int rc;
60 
61 	rc = i2c_smbus_read_byte_data(c, addr);
62 	if (rc < 0) {
63 		v4l2_err(sd, "i2c i/o error: rc == %d\n", rc);
64 		return rc;
65 	}
66 
67 	v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, rc);
68 
69 	return rc;
70 }
71 
72 static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
73 				 unsigned char value)
74 {
75 	struct i2c_client *c = v4l2_get_subdevdata(sd);
76 	int rc;
77 
78 	v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", addr, value);
79 	rc = i2c_smbus_write_byte_data(c, addr, value);
80 	if (rc < 0)
81 		v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d\n", rc);
82 }
83 
84 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
85 				const u8 end, int max_line)
86 {
87 	int i = 0;
88 
89 	while (init != (u8)(end + 1)) {
90 		if ((i % max_line) == 0) {
91 			if (i > 0)
92 				printk("\n");
93 			printk("tvp5150: %s reg 0x%02x = ", s, init);
94 		}
95 		printk("%02x ", tvp5150_read(sd, init));
96 
97 		init++;
98 		i++;
99 	}
100 	printk("\n");
101 }
102 
103 static int tvp5150_log_status(struct v4l2_subdev *sd)
104 {
105 	printk("tvp5150: Video input source selection #1 = 0x%02x\n",
106 			tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
107 	printk("tvp5150: Analog channel controls = 0x%02x\n",
108 			tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
109 	printk("tvp5150: Operation mode controls = 0x%02x\n",
110 			tvp5150_read(sd, TVP5150_OP_MODE_CTL));
111 	printk("tvp5150: Miscellaneous controls = 0x%02x\n",
112 			tvp5150_read(sd, TVP5150_MISC_CTL));
113 	printk("tvp5150: Autoswitch mask= 0x%02x\n",
114 			tvp5150_read(sd, TVP5150_AUTOSW_MSK));
115 	printk("tvp5150: Color killer threshold control = 0x%02x\n",
116 			tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
117 	printk("tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
118 			tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
119 			tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
120 			tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
121 	printk("tvp5150: Brightness control = 0x%02x\n",
122 			tvp5150_read(sd, TVP5150_BRIGHT_CTL));
123 	printk("tvp5150: Color saturation control = 0x%02x\n",
124 			tvp5150_read(sd, TVP5150_SATURATION_CTL));
125 	printk("tvp5150: Hue control = 0x%02x\n",
126 			tvp5150_read(sd, TVP5150_HUE_CTL));
127 	printk("tvp5150: Contrast control = 0x%02x\n",
128 			tvp5150_read(sd, TVP5150_CONTRAST_CTL));
129 	printk("tvp5150: Outputs and data rates select = 0x%02x\n",
130 			tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
131 	printk("tvp5150: Configuration shared pins = 0x%02x\n",
132 			tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
133 	printk("tvp5150: Active video cropping start = 0x%02x%02x\n",
134 			tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
135 			tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
136 	printk("tvp5150: Active video cropping stop  = 0x%02x%02x\n",
137 			tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
138 			tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
139 	printk("tvp5150: Genlock/RTC = 0x%02x\n",
140 			tvp5150_read(sd, TVP5150_GENLOCK));
141 	printk("tvp5150: Horizontal sync start = 0x%02x\n",
142 			tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
143 	printk("tvp5150: Vertical blanking start = 0x%02x\n",
144 			tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
145 	printk("tvp5150: Vertical blanking stop = 0x%02x\n",
146 			tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
147 	printk("tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
148 			tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
149 			tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
150 	printk("tvp5150: Interrupt reset register B = 0x%02x\n",
151 			tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
152 	printk("tvp5150: Interrupt enable register B = 0x%02x\n",
153 			tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
154 	printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
155 			tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
156 	printk("tvp5150: Video standard = 0x%02x\n",
157 			tvp5150_read(sd, TVP5150_VIDEO_STD));
158 	printk("tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
159 			tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
160 			tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
161 	printk("tvp5150: Macrovision on counter = 0x%02x\n",
162 			tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
163 	printk("tvp5150: Macrovision off counter = 0x%02x\n",
164 			tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
165 	printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
166 			(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
167 	printk("tvp5150: Device ID = %02x%02x\n",
168 			tvp5150_read(sd, TVP5150_MSB_DEV_ID),
169 			tvp5150_read(sd, TVP5150_LSB_DEV_ID));
170 	printk("tvp5150: ROM version = (hex) %02x.%02x\n",
171 			tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
172 			tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
173 	printk("tvp5150: Vertical line count = 0x%02x%02x\n",
174 			tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
175 			tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
176 	printk("tvp5150: Interrupt status register B = 0x%02x\n",
177 			tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
178 	printk("tvp5150: Interrupt active register B = 0x%02x\n",
179 			tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
180 	printk("tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
181 			tvp5150_read(sd, TVP5150_STATUS_REG_1),
182 			tvp5150_read(sd, TVP5150_STATUS_REG_2),
183 			tvp5150_read(sd, TVP5150_STATUS_REG_3),
184 			tvp5150_read(sd, TVP5150_STATUS_REG_4),
185 			tvp5150_read(sd, TVP5150_STATUS_REG_5));
186 
187 	dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
188 			TVP5150_TELETEXT_FIL1_END, 8);
189 	dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
190 			TVP5150_TELETEXT_FIL2_END, 8);
191 
192 	printk("tvp5150: Teletext filter enable = 0x%02x\n",
193 			tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
194 	printk("tvp5150: Interrupt status register A = 0x%02x\n",
195 			tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
196 	printk("tvp5150: Interrupt enable register A = 0x%02x\n",
197 			tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
198 	printk("tvp5150: Interrupt configuration = 0x%02x\n",
199 			tvp5150_read(sd, TVP5150_INT_CONF));
200 	printk("tvp5150: VDP status register = 0x%02x\n",
201 			tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
202 	printk("tvp5150: FIFO word count = 0x%02x\n",
203 			tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
204 	printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
205 			tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
206 	printk("tvp5150: FIFO reset = 0x%02x\n",
207 			tvp5150_read(sd, TVP5150_FIFO_RESET));
208 	printk("tvp5150: Line number interrupt = 0x%02x\n",
209 			tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
210 	printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
211 			tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
212 			tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
213 	printk("tvp5150: FIFO output control = 0x%02x\n",
214 			tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
215 	printk("tvp5150: Full field enable = 0x%02x\n",
216 			tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
217 	printk("tvp5150: Full field mode register = 0x%02x\n",
218 			tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
219 
220 	dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
221 			TVP5150_CC_DATA_END, 8);
222 
223 	dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
224 			TVP5150_WSS_DATA_END, 8);
225 
226 	dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
227 			TVP5150_VPS_DATA_END, 8);
228 
229 	dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
230 			TVP5150_VITC_DATA_END, 10);
231 
232 	dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
233 			TVP5150_LINE_MODE_END, 8);
234 	return 0;
235 }
236 
237 /****************************************************************************
238 			Basic functions
239  ****************************************************************************/
240 
241 static inline void tvp5150_selmux(struct v4l2_subdev *sd)
242 {
243 	int opmode = 0;
244 	struct tvp5150 *decoder = to_tvp5150(sd);
245 	int input = 0;
246 	int val;
247 
248 	if ((decoder->output & TVP5150_BLACK_SCREEN) || !decoder->enable)
249 		input = 8;
250 
251 	switch (decoder->input) {
252 	case TVP5150_COMPOSITE1:
253 		input |= 2;
254 		/* fall through */
255 	case TVP5150_COMPOSITE0:
256 		break;
257 	case TVP5150_SVIDEO:
258 	default:
259 		input |= 1;
260 		break;
261 	}
262 
263 	v4l2_dbg(1, debug, sd, "Selecting video route: route input=%i, output=%i "
264 			"=> tvp5150 input=%i, opmode=%i\n",
265 			decoder->input, decoder->output,
266 			input, opmode);
267 
268 	tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
269 	tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
270 
271 	/* Svideo should enable YCrCb output and disable GPCL output
272 	 * For Composite and TV, it should be the reverse
273 	 */
274 	val = tvp5150_read(sd, TVP5150_MISC_CTL);
275 	if (val < 0) {
276 		v4l2_err(sd, "%s: failed with error = %d\n", __func__, val);
277 		return;
278 	}
279 
280 	if (decoder->input == TVP5150_SVIDEO)
281 		val = (val & ~0x40) | 0x10;
282 	else
283 		val = (val & ~0x10) | 0x40;
284 	tvp5150_write(sd, TVP5150_MISC_CTL, val);
285 };
286 
287 struct i2c_reg_value {
288 	unsigned char reg;
289 	unsigned char value;
290 };
291 
292 /* Default values as sugested at TVP5150AM1 datasheet */
293 static const struct i2c_reg_value tvp5150_init_default[] = {
294 	{ /* 0x00 */
295 		TVP5150_VD_IN_SRC_SEL_1,0x00
296 	},
297 	{ /* 0x01 */
298 		TVP5150_ANAL_CHL_CTL,0x15
299 	},
300 	{ /* 0x02 */
301 		TVP5150_OP_MODE_CTL,0x00
302 	},
303 	{ /* 0x03 */
304 		TVP5150_MISC_CTL,0x01
305 	},
306 	{ /* 0x06 */
307 		TVP5150_COLOR_KIL_THSH_CTL,0x10
308 	},
309 	{ /* 0x07 */
310 		TVP5150_LUMA_PROC_CTL_1,0x60
311 	},
312 	{ /* 0x08 */
313 		TVP5150_LUMA_PROC_CTL_2,0x00
314 	},
315 	{ /* 0x09 */
316 		TVP5150_BRIGHT_CTL,0x80
317 	},
318 	{ /* 0x0a */
319 		TVP5150_SATURATION_CTL,0x80
320 	},
321 	{ /* 0x0b */
322 		TVP5150_HUE_CTL,0x00
323 	},
324 	{ /* 0x0c */
325 		TVP5150_CONTRAST_CTL,0x80
326 	},
327 	{ /* 0x0d */
328 		TVP5150_DATA_RATE_SEL,0x47
329 	},
330 	{ /* 0x0e */
331 		TVP5150_LUMA_PROC_CTL_3,0x00
332 	},
333 	{ /* 0x0f */
334 		TVP5150_CONF_SHARED_PIN,0x08
335 	},
336 	{ /* 0x11 */
337 		TVP5150_ACT_VD_CROP_ST_MSB,0x00
338 	},
339 	{ /* 0x12 */
340 		TVP5150_ACT_VD_CROP_ST_LSB,0x00
341 	},
342 	{ /* 0x13 */
343 		TVP5150_ACT_VD_CROP_STP_MSB,0x00
344 	},
345 	{ /* 0x14 */
346 		TVP5150_ACT_VD_CROP_STP_LSB,0x00
347 	},
348 	{ /* 0x15 */
349 		TVP5150_GENLOCK,0x01
350 	},
351 	{ /* 0x16 */
352 		TVP5150_HORIZ_SYNC_START,0x80
353 	},
354 	{ /* 0x18 */
355 		TVP5150_VERT_BLANKING_START,0x00
356 	},
357 	{ /* 0x19 */
358 		TVP5150_VERT_BLANKING_STOP,0x00
359 	},
360 	{ /* 0x1a */
361 		TVP5150_CHROMA_PROC_CTL_1,0x0c
362 	},
363 	{ /* 0x1b */
364 		TVP5150_CHROMA_PROC_CTL_2,0x14
365 	},
366 	{ /* 0x1c */
367 		TVP5150_INT_RESET_REG_B,0x00
368 	},
369 	{ /* 0x1d */
370 		TVP5150_INT_ENABLE_REG_B,0x00
371 	},
372 	{ /* 0x1e */
373 		TVP5150_INTT_CONFIG_REG_B,0x00
374 	},
375 	{ /* 0x28 */
376 		TVP5150_VIDEO_STD,0x00
377 	},
378 	{ /* 0x2e */
379 		TVP5150_MACROVISION_ON_CTR,0x0f
380 	},
381 	{ /* 0x2f */
382 		TVP5150_MACROVISION_OFF_CTR,0x01
383 	},
384 	{ /* 0xbb */
385 		TVP5150_TELETEXT_FIL_ENA,0x00
386 	},
387 	{ /* 0xc0 */
388 		TVP5150_INT_STATUS_REG_A,0x00
389 	},
390 	{ /* 0xc1 */
391 		TVP5150_INT_ENABLE_REG_A,0x00
392 	},
393 	{ /* 0xc2 */
394 		TVP5150_INT_CONF,0x04
395 	},
396 	{ /* 0xc8 */
397 		TVP5150_FIFO_INT_THRESHOLD,0x80
398 	},
399 	{ /* 0xc9 */
400 		TVP5150_FIFO_RESET,0x00
401 	},
402 	{ /* 0xca */
403 		TVP5150_LINE_NUMBER_INT,0x00
404 	},
405 	{ /* 0xcb */
406 		TVP5150_PIX_ALIGN_REG_LOW,0x4e
407 	},
408 	{ /* 0xcc */
409 		TVP5150_PIX_ALIGN_REG_HIGH,0x00
410 	},
411 	{ /* 0xcd */
412 		TVP5150_FIFO_OUT_CTRL,0x01
413 	},
414 	{ /* 0xcf */
415 		TVP5150_FULL_FIELD_ENA,0x00
416 	},
417 	{ /* 0xd0 */
418 		TVP5150_LINE_MODE_INI,0x00
419 	},
420 	{ /* 0xfc */
421 		TVP5150_FULL_FIELD_MODE_REG,0x7f
422 	},
423 	{ /* end of data */
424 		0xff,0xff
425 	}
426 };
427 
428 /* Default values as sugested at TVP5150AM1 datasheet */
429 static const struct i2c_reg_value tvp5150_init_enable[] = {
430 	{
431 		TVP5150_CONF_SHARED_PIN, 2
432 	},{	/* Automatic offset and AGC enabled */
433 		TVP5150_ANAL_CHL_CTL, 0x15
434 	},{	/* Activate YCrCb output 0x9 or 0xd ? */
435 		TVP5150_MISC_CTL, 0x6f
436 	},{	/* Activates video std autodetection for all standards */
437 		TVP5150_AUTOSW_MSK, 0x0
438 	},{	/* Default format: 0x47. For 4:2:2: 0x40 */
439 		TVP5150_DATA_RATE_SEL, 0x47
440 	},{
441 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
442 	},{
443 		TVP5150_CHROMA_PROC_CTL_2, 0x54
444 	},{	/* Non documented, but initialized on WinTV USB2 */
445 		0x27, 0x20
446 	},{
447 		0xff,0xff
448 	}
449 };
450 
451 struct tvp5150_vbi_type {
452 	unsigned int vbi_type;
453 	unsigned int ini_line;
454 	unsigned int end_line;
455 	unsigned int by_field :1;
456 };
457 
458 struct i2c_vbi_ram_value {
459 	u16 reg;
460 	struct tvp5150_vbi_type type;
461 	unsigned char values[16];
462 };
463 
464 /* This struct have the values for each supported VBI Standard
465  * by
466  tvp5150_vbi_types should follow the same order as vbi_ram_default
467  * value 0 means rom position 0x10, value 1 means rom position 0x30
468  * and so on. There are 16 possible locations from 0 to 15.
469  */
470 
471 static struct i2c_vbi_ram_value vbi_ram_default[] =
472 {
473 	/* FIXME: Current api doesn't handle all VBI types, those not
474 	   yet supported are placed under #if 0 */
475 #if 0
476 	{0x010, /* Teletext, SECAM, WST System A */
477 		{V4L2_SLICED_TELETEXT_SECAM,6,23,1},
478 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
479 		  0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
480 	},
481 #endif
482 	{0x030, /* Teletext, PAL, WST System B */
483 		{V4L2_SLICED_TELETEXT_B,6,22,1},
484 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
485 		  0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
486 	},
487 #if 0
488 	{0x050, /* Teletext, PAL, WST System C */
489 		{V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
490 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
491 		  0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
492 	},
493 	{0x070, /* Teletext, NTSC, WST System B */
494 		{V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
495 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
496 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
497 	},
498 	{0x090, /* Tetetext, NTSC NABTS System C */
499 		{V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
500 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
501 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
502 	},
503 	{0x0b0, /* Teletext, NTSC-J, NABTS System D */
504 		{V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
505 		{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
506 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
507 	},
508 	{0x0d0, /* Closed Caption, PAL/SECAM */
509 		{V4L2_SLICED_CAPTION_625,22,22,1},
510 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
511 		  0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
512 	},
513 #endif
514 	{0x0f0, /* Closed Caption, NTSC */
515 		{V4L2_SLICED_CAPTION_525,21,21,1},
516 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
517 		  0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
518 	},
519 	{0x110, /* Wide Screen Signal, PAL/SECAM */
520 		{V4L2_SLICED_WSS_625,23,23,1},
521 		{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
522 		  0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
523 	},
524 #if 0
525 	{0x130, /* Wide Screen Signal, NTSC C */
526 		{V4L2_SLICED_WSS_525,20,20,1},
527 		{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
528 		  0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
529 	},
530 	{0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
531 		{V4l2_SLICED_VITC_625,6,22,0},
532 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
533 		  0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
534 	},
535 	{0x170, /* Vertical Interval Timecode (VITC), NTSC */
536 		{V4l2_SLICED_VITC_525,10,20,0},
537 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
538 		  0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
539 	},
540 #endif
541 	{0x190, /* Video Program System (VPS), PAL */
542 		{V4L2_SLICED_VPS,16,16,0},
543 		{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
544 		  0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
545 	},
546 	/* 0x1d0 User programmable */
547 
548 	/* End of struct */
549 	{ (u16)-1 }
550 };
551 
552 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
553 				const struct i2c_reg_value *regs)
554 {
555 	while (regs->reg != 0xff) {
556 		tvp5150_write(sd, regs->reg, regs->value);
557 		regs++;
558 	}
559 	return 0;
560 }
561 
562 static int tvp5150_vdp_init(struct v4l2_subdev *sd,
563 				const struct i2c_vbi_ram_value *regs)
564 {
565 	unsigned int i;
566 
567 	/* Disable Full Field */
568 	tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
569 
570 	/* Before programming, Line mode should be at 0xff */
571 	for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
572 		tvp5150_write(sd, i, 0xff);
573 
574 	/* Load Ram Table */
575 	while (regs->reg != (u16)-1) {
576 		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
577 		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
578 
579 		for (i = 0; i < 16; i++)
580 			tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
581 
582 		regs++;
583 	}
584 	return 0;
585 }
586 
587 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
588 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
589 				struct v4l2_sliced_vbi_cap *cap)
590 {
591 	const struct i2c_vbi_ram_value *regs = vbi_ram_default;
592 	int line;
593 
594 	v4l2_dbg(1, debug, sd, "g_sliced_vbi_cap\n");
595 	memset(cap, 0, sizeof *cap);
596 
597 	while (regs->reg != (u16)-1 ) {
598 		for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
599 			cap->service_lines[0][line] |= regs->type.vbi_type;
600 		}
601 		cap->service_set |= regs->type.vbi_type;
602 
603 		regs++;
604 	}
605 	return 0;
606 }
607 
608 /* Set vbi processing
609  * type - one of tvp5150_vbi_types
610  * line - line to gather data
611  * fields: bit 0 field1, bit 1, field2
612  * flags (default=0xf0) is a bitmask, were set means:
613  *	bit 7: enable filtering null bytes on CC
614  *	bit 6: send data also to FIFO
615  *	bit 5: don't allow data with errors on FIFO
616  *	bit 4: enable ECC when possible
617  * pix_align = pix alignment:
618  *	LSB = field1
619  *	MSB = field2
620  */
621 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
622 			const struct i2c_vbi_ram_value *regs,
623 			unsigned int type,u8 flags, int line,
624 			const int fields)
625 {
626 	struct tvp5150 *decoder = to_tvp5150(sd);
627 	v4l2_std_id std = decoder->norm;
628 	u8 reg;
629 	int pos=0;
630 
631 	if (std == V4L2_STD_ALL) {
632 		v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
633 		return 0;
634 	} else if (std & V4L2_STD_625_50) {
635 		/* Don't follow NTSC Line number convension */
636 		line += 3;
637 	}
638 
639 	if (line<6||line>27)
640 		return 0;
641 
642 	while (regs->reg != (u16)-1 ) {
643 		if ((type & regs->type.vbi_type) &&
644 		    (line>=regs->type.ini_line) &&
645 		    (line<=regs->type.end_line)) {
646 			type=regs->type.vbi_type;
647 			break;
648 		}
649 
650 		regs++;
651 		pos++;
652 	}
653 	if (regs->reg == (u16)-1)
654 		return 0;
655 
656 	type=pos | (flags & 0xf0);
657 	reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
658 
659 	if (fields&1) {
660 		tvp5150_write(sd, reg, type);
661 	}
662 
663 	if (fields&2) {
664 		tvp5150_write(sd, reg+1, type);
665 	}
666 
667 	return type;
668 }
669 
670 static int tvp5150_get_vbi(struct v4l2_subdev *sd,
671 			const struct i2c_vbi_ram_value *regs, int line)
672 {
673 	struct tvp5150 *decoder = to_tvp5150(sd);
674 	v4l2_std_id std = decoder->norm;
675 	u8 reg;
676 	int pos, type = 0;
677 	int i, ret = 0;
678 
679 	if (std == V4L2_STD_ALL) {
680 		v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
681 		return 0;
682 	} else if (std & V4L2_STD_625_50) {
683 		/* Don't follow NTSC Line number convension */
684 		line += 3;
685 	}
686 
687 	if (line < 6 || line > 27)
688 		return 0;
689 
690 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
691 
692 	for (i = 0; i <= 1; i++) {
693 		ret = tvp5150_read(sd, reg + i);
694 		if (ret < 0) {
695 			v4l2_err(sd, "%s: failed with error = %d\n",
696 				 __func__, ret);
697 			return 0;
698 		}
699 		pos = ret & 0x0f;
700 		if (pos < 0x0f)
701 			type |= regs[pos].type.vbi_type;
702 	}
703 
704 	return type;
705 }
706 
707 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
708 {
709 	struct tvp5150 *decoder = to_tvp5150(sd);
710 	int fmt = 0;
711 
712 	decoder->norm = std;
713 
714 	/* First tests should be against specific std */
715 
716 	if (std == V4L2_STD_NTSC_443) {
717 		fmt = VIDEO_STD_NTSC_4_43_BIT;
718 	} else if (std == V4L2_STD_PAL_M) {
719 		fmt = VIDEO_STD_PAL_M_BIT;
720 	} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
721 		fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
722 	} else {
723 		/* Then, test against generic ones */
724 		if (std & V4L2_STD_NTSC)
725 			fmt = VIDEO_STD_NTSC_MJ_BIT;
726 		else if (std & V4L2_STD_PAL)
727 			fmt = VIDEO_STD_PAL_BDGHIN_BIT;
728 		else if (std & V4L2_STD_SECAM)
729 			fmt = VIDEO_STD_SECAM_BIT;
730 	}
731 
732 	v4l2_dbg(1, debug, sd, "Set video std register to %d.\n", fmt);
733 	tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
734 	return 0;
735 }
736 
737 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
738 {
739 	struct tvp5150 *decoder = to_tvp5150(sd);
740 
741 	if (decoder->norm == std)
742 		return 0;
743 
744 	/* Change cropping height limits */
745 	if (std & V4L2_STD_525_60)
746 		decoder->rect.height = TVP5150_V_MAX_525_60;
747 	else
748 		decoder->rect.height = TVP5150_V_MAX_OTHERS;
749 
750 
751 	return tvp5150_set_std(sd, std);
752 }
753 
754 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
755 {
756 	struct tvp5150 *decoder = to_tvp5150(sd);
757 
758 	/* Initializes TVP5150 to its default values */
759 	tvp5150_write_inittab(sd, tvp5150_init_default);
760 
761 	/* Initializes VDP registers */
762 	tvp5150_vdp_init(sd, vbi_ram_default);
763 
764 	/* Selects decoder input */
765 	tvp5150_selmux(sd);
766 
767 	/* Initializes TVP5150 to stream enabled values */
768 	tvp5150_write_inittab(sd, tvp5150_init_enable);
769 
770 	/* Initialize image preferences */
771 	v4l2_ctrl_handler_setup(&decoder->hdl);
772 
773 	tvp5150_set_std(sd, decoder->norm);
774 	return 0;
775 };
776 
777 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
778 {
779 	struct v4l2_subdev *sd = to_sd(ctrl);
780 
781 	switch (ctrl->id) {
782 	case V4L2_CID_BRIGHTNESS:
783 		tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
784 		return 0;
785 	case V4L2_CID_CONTRAST:
786 		tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
787 		return 0;
788 	case V4L2_CID_SATURATION:
789 		tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
790 		return 0;
791 	case V4L2_CID_HUE:
792 		tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
793 		return 0;
794 	}
795 	return -EINVAL;
796 }
797 
798 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
799 {
800 	int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
801 
802 	switch (val & 0x0F) {
803 	case 0x01:
804 		return V4L2_STD_NTSC;
805 	case 0x03:
806 		return V4L2_STD_PAL;
807 	case 0x05:
808 		return V4L2_STD_PAL_M;
809 	case 0x07:
810 		return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
811 	case 0x09:
812 		return V4L2_STD_NTSC_443;
813 	case 0xb:
814 		return V4L2_STD_SECAM;
815 	default:
816 		return V4L2_STD_UNKNOWN;
817 	}
818 }
819 
820 static int tvp5150_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
821 						u32 *code)
822 {
823 	if (index)
824 		return -EINVAL;
825 
826 	*code = MEDIA_BUS_FMT_UYVY8_2X8;
827 	return 0;
828 }
829 
830 static int tvp5150_mbus_fmt(struct v4l2_subdev *sd,
831 			    struct v4l2_mbus_framefmt *f)
832 {
833 	struct tvp5150 *decoder = to_tvp5150(sd);
834 
835 	if (f == NULL)
836 		return -EINVAL;
837 
838 	tvp5150_reset(sd, 0);
839 
840 	f->width = decoder->rect.width;
841 	f->height = decoder->rect.height;
842 
843 	f->code = MEDIA_BUS_FMT_UYVY8_2X8;
844 	f->field = V4L2_FIELD_SEQ_TB;
845 	f->colorspace = V4L2_COLORSPACE_SMPTE170M;
846 
847 	v4l2_dbg(1, debug, sd, "width = %d, height = %d\n", f->width,
848 			f->height);
849 	return 0;
850 }
851 
852 static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
853 {
854 	struct v4l2_rect rect = a->c;
855 	struct tvp5150 *decoder = to_tvp5150(sd);
856 	v4l2_std_id std;
857 	unsigned int hmax;
858 
859 	v4l2_dbg(1, debug, sd, "%s left=%d, top=%d, width=%d, height=%d\n",
860 		__func__, rect.left, rect.top, rect.width, rect.height);
861 
862 	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
863 		return -EINVAL;
864 
865 	/* tvp5150 has some special limits */
866 	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
867 	rect.width = clamp_t(unsigned int, rect.width,
868 			     TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
869 			     TVP5150_H_MAX - rect.left);
870 	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
871 
872 	/* Calculate height based on current standard */
873 	if (decoder->norm == V4L2_STD_ALL)
874 		std = tvp5150_read_std(sd);
875 	else
876 		std = decoder->norm;
877 
878 	if (std & V4L2_STD_525_60)
879 		hmax = TVP5150_V_MAX_525_60;
880 	else
881 		hmax = TVP5150_V_MAX_OTHERS;
882 
883 	rect.height = clamp_t(unsigned int, rect.height,
884 			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
885 			      hmax - rect.top);
886 
887 	tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
888 	tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
889 		      rect.top + rect.height - hmax);
890 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
891 		      rect.left >> TVP5150_CROP_SHIFT);
892 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
893 		      rect.left | (1 << TVP5150_CROP_SHIFT));
894 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
895 		      (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
896 		      TVP5150_CROP_SHIFT);
897 	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
898 		      rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
899 
900 	decoder->rect = rect;
901 
902 	return 0;
903 }
904 
905 static int tvp5150_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
906 {
907 	struct tvp5150 *decoder = to_tvp5150(sd);
908 
909 	a->c	= decoder->rect;
910 	a->type	= V4L2_BUF_TYPE_VIDEO_CAPTURE;
911 
912 	return 0;
913 }
914 
915 static int tvp5150_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
916 {
917 	struct tvp5150 *decoder = to_tvp5150(sd);
918 	v4l2_std_id std;
919 
920 	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
921 		return -EINVAL;
922 
923 	a->bounds.left			= 0;
924 	a->bounds.top			= 0;
925 	a->bounds.width			= TVP5150_H_MAX;
926 
927 	/* Calculate height based on current standard */
928 	if (decoder->norm == V4L2_STD_ALL)
929 		std = tvp5150_read_std(sd);
930 	else
931 		std = decoder->norm;
932 
933 	if (std & V4L2_STD_525_60)
934 		a->bounds.height = TVP5150_V_MAX_525_60;
935 	else
936 		a->bounds.height = TVP5150_V_MAX_OTHERS;
937 
938 	a->defrect			= a->bounds;
939 	a->pixelaspect.numerator	= 1;
940 	a->pixelaspect.denominator	= 1;
941 
942 	return 0;
943 }
944 
945 /****************************************************************************
946 			I2C Command
947  ****************************************************************************/
948 
949 static int tvp5150_s_routing(struct v4l2_subdev *sd,
950 			     u32 input, u32 output, u32 config)
951 {
952 	struct tvp5150 *decoder = to_tvp5150(sd);
953 
954 	decoder->input = input;
955 	decoder->output = output;
956 	tvp5150_selmux(sd);
957 	return 0;
958 }
959 
960 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
961 {
962 	/* this is for capturing 36 raw vbi lines
963 	   if there's a way to cut off the beginning 2 vbi lines
964 	   with the tvp5150 then the vbi line count could be lowered
965 	   to 17 lines/field again, although I couldn't find a register
966 	   which could do that cropping */
967 	if (fmt->sample_format == V4L2_PIX_FMT_GREY)
968 		tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
969 	if (fmt->count[0] == 18 && fmt->count[1] == 18) {
970 		tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
971 		tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
972 	}
973 	return 0;
974 }
975 
976 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
977 {
978 	int i;
979 
980 	if (svbi->service_set != 0) {
981 		for (i = 0; i <= 23; i++) {
982 			svbi->service_lines[1][i] = 0;
983 			svbi->service_lines[0][i] =
984 				tvp5150_set_vbi(sd, vbi_ram_default,
985 				       svbi->service_lines[0][i], 0xf0, i, 3);
986 		}
987 		/* Enables FIFO */
988 		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
989 	} else {
990 		/* Disables FIFO*/
991 		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
992 
993 		/* Disable Full Field */
994 		tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
995 
996 		/* Disable Line modes */
997 		for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
998 			tvp5150_write(sd, i, 0xff);
999 	}
1000 	return 0;
1001 }
1002 
1003 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1004 {
1005 	int i, mask = 0;
1006 
1007 	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1008 
1009 	for (i = 0; i <= 23; i++) {
1010 		svbi->service_lines[0][i] =
1011 			tvp5150_get_vbi(sd, vbi_ram_default, i);
1012 		mask |= svbi->service_lines[0][i];
1013 	}
1014 	svbi->service_set = mask;
1015 	return 0;
1016 }
1017 
1018 #ifdef CONFIG_VIDEO_ADV_DEBUG
1019 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1020 {
1021 	int res;
1022 
1023 	res = tvp5150_read(sd, reg->reg & 0xff);
1024 	if (res < 0) {
1025 		v4l2_err(sd, "%s: failed with error = %d\n", __func__, res);
1026 		return res;
1027 	}
1028 
1029 	reg->val = res;
1030 	reg->size = 1;
1031 	return 0;
1032 }
1033 
1034 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1035 {
1036 	tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
1037 	return 0;
1038 }
1039 #endif
1040 
1041 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1042 {
1043 	int status = tvp5150_read(sd, 0x88);
1044 
1045 	vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1046 	return 0;
1047 }
1048 
1049 /* ----------------------------------------------------------------------- */
1050 
1051 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1052 	.s_ctrl = tvp5150_s_ctrl,
1053 };
1054 
1055 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1056 	.log_status = tvp5150_log_status,
1057 	.reset = tvp5150_reset,
1058 #ifdef CONFIG_VIDEO_ADV_DEBUG
1059 	.g_register = tvp5150_g_register,
1060 	.s_register = tvp5150_s_register,
1061 #endif
1062 };
1063 
1064 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1065 	.g_tuner = tvp5150_g_tuner,
1066 };
1067 
1068 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1069 	.s_std = tvp5150_s_std,
1070 	.s_routing = tvp5150_s_routing,
1071 	.enum_mbus_fmt = tvp5150_enum_mbus_fmt,
1072 	.s_mbus_fmt = tvp5150_mbus_fmt,
1073 	.try_mbus_fmt = tvp5150_mbus_fmt,
1074 	.g_mbus_fmt = tvp5150_mbus_fmt,
1075 	.s_crop = tvp5150_s_crop,
1076 	.g_crop = tvp5150_g_crop,
1077 	.cropcap = tvp5150_cropcap,
1078 };
1079 
1080 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1081 	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1082 	.g_sliced_fmt = tvp5150_g_sliced_fmt,
1083 	.s_sliced_fmt = tvp5150_s_sliced_fmt,
1084 	.s_raw_fmt = tvp5150_s_raw_fmt,
1085 };
1086 
1087 static const struct v4l2_subdev_ops tvp5150_ops = {
1088 	.core = &tvp5150_core_ops,
1089 	.tuner = &tvp5150_tuner_ops,
1090 	.video = &tvp5150_video_ops,
1091 	.vbi = &tvp5150_vbi_ops,
1092 };
1093 
1094 
1095 /****************************************************************************
1096 			I2C Client & Driver
1097  ****************************************************************************/
1098 
1099 static int tvp5150_probe(struct i2c_client *c,
1100 			 const struct i2c_device_id *id)
1101 {
1102 	struct tvp5150 *core;
1103 	struct v4l2_subdev *sd;
1104 	int tvp5150_id[4];
1105 	int i, res;
1106 
1107 	/* Check if the adapter supports the needed features */
1108 	if (!i2c_check_functionality(c->adapter,
1109 	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1110 		return -EIO;
1111 
1112 	core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1113 	if (!core)
1114 		return -ENOMEM;
1115 	sd = &core->sd;
1116 	v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1117 
1118 	/*
1119 	 * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1120 	 * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1121 	 */
1122 	for (i = 0; i < 4; i++) {
1123 		res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
1124 		if (res < 0)
1125 			return res;
1126 		tvp5150_id[i] = res;
1127 	}
1128 
1129 	v4l_info(c, "chip found @ 0x%02x (%s)\n",
1130 		 c->addr << 1, c->adapter->name);
1131 
1132 	if (tvp5150_id[2] == 4 && tvp5150_id[3] == 0) { /* Is TVP5150AM1 */
1133 		v4l2_info(sd, "tvp%02x%02xam1 detected.\n",
1134 			  tvp5150_id[0], tvp5150_id[1]);
1135 
1136 		/* ITU-T BT.656.4 timing */
1137 		tvp5150_write(sd, TVP5150_REV_SELECT, 0);
1138 	} else {
1139 		/* Is TVP5150A */
1140 		if (tvp5150_id[2] == 3 || tvp5150_id[3] == 0x21) {
1141 			v4l2_info(sd, "tvp%02x%02xa detected.\n",
1142 				  tvp5150_id[0], tvp5150_id[1]);
1143 		} else {
1144 			v4l2_info(sd, "*** unknown tvp%02x%02x chip detected.\n",
1145 				  tvp5150_id[0], tvp5150_id[1]);
1146 			v4l2_info(sd, "*** Rom ver is %d.%d\n",
1147 				  tvp5150_id[2], tvp5150_id[3]);
1148 		}
1149 	}
1150 
1151 	core->norm = V4L2_STD_ALL;	/* Default is autodetect */
1152 	core->input = TVP5150_COMPOSITE1;
1153 	core->enable = 1;
1154 
1155 	v4l2_ctrl_handler_init(&core->hdl, 4);
1156 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1157 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1158 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1159 			V4L2_CID_CONTRAST, 0, 255, 1, 128);
1160 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1161 			V4L2_CID_SATURATION, 0, 255, 1, 128);
1162 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1163 			V4L2_CID_HUE, -128, 127, 1, 0);
1164 	sd->ctrl_handler = &core->hdl;
1165 	if (core->hdl.error) {
1166 		res = core->hdl.error;
1167 		v4l2_ctrl_handler_free(&core->hdl);
1168 		return res;
1169 	}
1170 	v4l2_ctrl_handler_setup(&core->hdl);
1171 
1172 	/* Default is no cropping */
1173 	core->rect.top = 0;
1174 	if (tvp5150_read_std(sd) & V4L2_STD_525_60)
1175 		core->rect.height = TVP5150_V_MAX_525_60;
1176 	else
1177 		core->rect.height = TVP5150_V_MAX_OTHERS;
1178 	core->rect.left = 0;
1179 	core->rect.width = TVP5150_H_MAX;
1180 
1181 	if (debug > 1)
1182 		tvp5150_log_status(sd);
1183 	return 0;
1184 }
1185 
1186 static int tvp5150_remove(struct i2c_client *c)
1187 {
1188 	struct v4l2_subdev *sd = i2c_get_clientdata(c);
1189 	struct tvp5150 *decoder = to_tvp5150(sd);
1190 
1191 	v4l2_dbg(1, debug, sd,
1192 		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1193 		c->addr << 1);
1194 
1195 	v4l2_device_unregister_subdev(sd);
1196 	v4l2_ctrl_handler_free(&decoder->hdl);
1197 	return 0;
1198 }
1199 
1200 /* ----------------------------------------------------------------------- */
1201 
1202 static const struct i2c_device_id tvp5150_id[] = {
1203 	{ "tvp5150", 0 },
1204 	{ }
1205 };
1206 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1207 
1208 static struct i2c_driver tvp5150_driver = {
1209 	.driver = {
1210 		.owner	= THIS_MODULE,
1211 		.name	= "tvp5150",
1212 	},
1213 	.probe		= tvp5150_probe,
1214 	.remove		= tvp5150_remove,
1215 	.id_table	= tvp5150_id,
1216 };
1217 
1218 module_i2c_driver(tvp5150_driver);
1219