2  *  bt819 - BT819A VideoStream Decoder (Rockwell Part)
43 MODULE_DESCRIPTION("Brooktree-819 video decoder driver");
92 static inline int bt819_write(struct bt819 *decoder, u8 reg, u8 value)  in bt819_write()  argument
94 	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);  in bt819_write()
96 	decoder->reg[reg] = value;  in bt819_write()
100 static inline int bt819_setbit(struct bt819 *decoder, u8 reg, u8 bit, u8 value)  in bt819_setbit()  argument
102 	return bt819_write(decoder, reg,  in bt819_setbit()
103 		(decoder->reg[reg] & ~(1 << bit)) | (value ? (1 << bit) : 0));  in bt819_setbit()
106 static int bt819_write_block(struct bt819 *decoder, const u8 *data, unsigned int len)  in bt819_write_block()  argument
108 	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);  in bt819_write_block()
124 				    decoder->reg[reg++] = data[1];  in bt819_write_block()
136 			ret = bt819_write(decoder, reg, *data++);  in bt819_write_block()
146 static inline int bt819_read(struct bt819 *decoder, u8 reg)  in bt819_read()  argument
148 	struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);  in bt819_read()
189 	struct bt819 *decoder = to_bt819(sd);  in bt819_init()  local
190 	struct timing *timing = &timing_data[(decoder->norm & V4L2_STD_525_60) ? 1 : 0];  in bt819_init()
204 	init[0x15 * 2 - 1] = (decoder->norm & V4L2_STD_625_50) ? 115 : 93;	/* Chroma burst delay */  in bt819_init()
206 	bt819_write(decoder, 0x1f, 0x00);  in bt819_init()
210 	return bt819_write_block(decoder, init, sizeof(init));  in bt819_init()
217 	struct bt819 *decoder = to_bt819(sd);  in bt819_status()  local
218 	int status = bt819_read(decoder, 0x00);  in bt819_status()
250 	struct bt819 *decoder = to_bt819(sd);  in bt819_s_std()  local
260 		bt819_setbit(decoder, 0x01, 0, 1);  in bt819_s_std()
261 		bt819_setbit(decoder, 0x01, 1, 0);  in bt819_s_std()
262 		bt819_setbit(decoder, 0x01, 5, 0);  in bt819_s_std()
263 		bt819_write(decoder, 0x18, 0x68);  in bt819_s_std()
264 		bt819_write(decoder, 0x19, 0x5d);  in bt819_s_std()
265 		/* bt819_setbit(decoder, 0x1a,  5, 1); */  in bt819_s_std()
269 		bt819_setbit(decoder, 0x01, 0, 1);  in bt819_s_std()
270 		bt819_setbit(decoder, 0x01, 1, 1);  in bt819_s_std()
271 		bt819_setbit(decoder, 0x01, 5, 1);  in bt819_s_std()
272 		bt819_write(decoder, 0x18, 0x7f);  in bt819_s_std()
273 		bt819_write(decoder, 0x19, 0x72);  in bt819_s_std()
274 		/* bt819_setbit(decoder, 0x1a,  5, 0); */  in bt819_s_std()
281 	bt819_write(decoder, 0x03,  in bt819_s_std()
286 	bt819_write(decoder, 0x04, timing->vdelay & 0xff);  in bt819_s_std()
287 	bt819_write(decoder, 0x05, timing->vactive & 0xff);  in bt819_s_std()
288 	bt819_write(decoder, 0x06, timing->hdelay & 0xff);  in bt819_s_std()
289 	bt819_write(decoder, 0x07, timing->hactive & 0xff);  in bt819_s_std()
290 	bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff);  in bt819_s_std()
291 	bt819_write(decoder, 0x09, timing->hscale & 0xff);  in bt819_s_std()
292 	decoder->norm = std;  in bt819_s_std()
300 	struct bt819 *decoder = to_bt819(sd);  in bt819_s_routing()  local
310 	if (decoder->input != input) {  in bt819_s_routing()
312 		decoder->input = input;  in bt819_s_routing()
314 		if (decoder->input == 0) {  in bt819_s_routing()
315 			bt819_setbit(decoder, 0x0b, 6, 0);  in bt819_s_routing()
316 			bt819_setbit(decoder, 0x1a, 1, 1);  in bt819_s_routing()
318 			bt819_setbit(decoder, 0x0b, 6, 1);  in bt819_s_routing()
319 			bt819_setbit(decoder, 0x1a, 1, 0);  in bt819_s_routing()
328 	struct bt819 *decoder = to_bt819(sd);  in bt819_s_stream()  local
332 	if (decoder->enable != enable) {  in bt819_s_stream()
333 		decoder->enable = enable;  in bt819_s_stream()
334 		bt819_setbit(decoder, 0x16, 7, !enable);  in bt819_s_stream()
342 	struct bt819 *decoder = to_bt819(sd);  in bt819_s_ctrl()  local
347 		bt819_write(decoder, 0x0a, ctrl->val);  in bt819_s_ctrl()
351 		bt819_write(decoder, 0x0c, ctrl->val & 0xff);  in bt819_s_ctrl()
352 		bt819_setbit(decoder, 0x0b, 2, ((ctrl->val >> 8) & 0x01));  in bt819_s_ctrl()
356 		bt819_write(decoder, 0x0d, (ctrl->val >> 7) & 0xff);  in bt819_s_ctrl()
357 		bt819_setbit(decoder, 0x0b, 1, ((ctrl->val >> 15) & 0x01));  in bt819_s_ctrl()
362 		bt819_write(decoder, 0x0e, (temp >> 7) & 0xff);  in bt819_s_ctrl()
363 		bt819_setbit(decoder, 0x0b, 0, (temp >> 15) & 0x01);  in bt819_s_ctrl()
367 		bt819_write(decoder, 0x0f, ctrl->val);  in bt819_s_ctrl()
378 	struct bt819 *decoder = to_bt819(sd);  in bt819_g_chip_ident()  local
381 	return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 0);  in bt819_g_chip_ident()
420 	struct bt819 *decoder;  in bt819_probe()  local
428 	decoder = kzalloc(sizeof(struct bt819), GFP_KERNEL);  in bt819_probe()
429 	if (decoder == NULL)  in bt819_probe()
431 	sd = &decoder->sd;  in bt819_probe()
434 	ver = bt819_read(decoder, 0x17);  in bt819_probe()
438 		decoder->ident = V4L2_IDENT_BT819A;  in bt819_probe()
442 		decoder->ident = V4L2_IDENT_BT817A;  in bt819_probe()
446 		decoder->ident = V4L2_IDENT_BT815A;  in bt819_probe()
457 	decoder->norm = V4L2_STD_NTSC;  in bt819_probe()
458 	decoder->input = 0;  in bt819_probe()
459 	decoder->enable = 1;  in bt819_probe()
465 	v4l2_ctrl_handler_init(&decoder->hdl, 4);  in bt819_probe()
466 	v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,  in bt819_probe()
468 	v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,  in bt819_probe()
470 	v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,  in bt819_probe()
472 	v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,  in bt819_probe()
474 	sd->ctrl_handler = &decoder->hdl;  in bt819_probe()
475 	if (decoder->hdl.error) {  in bt819_probe()
476 		int err = decoder->hdl.error;  in bt819_probe()
478 		v4l2_ctrl_handler_free(&decoder->hdl);  in bt819_probe()
479 		kfree(decoder);  in bt819_probe()
482 	v4l2_ctrl_handler_setup(&decoder->hdl);  in bt819_probe()
489 	struct bt819 *decoder = to_bt819(sd);  in bt819_remove()  local
492 	v4l2_ctrl_handler_free(&decoder->hdl);  in bt819_remove()
493 	kfree(decoder);  in bt819_remove()