163 static int ivtv_i2c_new_ir(struct ivtv *itv, u32 hw, const char *type, u8 addr)  in ivtv_i2c_new_ir()  argument
166 	struct i2c_adapter *adap = &itv->i2c_adap;  in ivtv_i2c_new_ir()
167 	struct IR_i2c_init_data *init_data = &itv->ir_i2c_init_data;  in ivtv_i2c_new_ir()
171 	if (itv->hw_flags & IVTV_HW_IR_ANY)  in ivtv_i2c_new_ir()
188 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
196 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
200 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
216 void ivtv_i2c_new_ir_legacy(struct ivtv *itv)  in ivtv_i2c_new_ir_legacy()  argument
238 	i2c_new_scanned_device(&itv->i2c_adap, &info, addr_list, NULL);  in ivtv_i2c_new_ir_legacy()
241 int ivtv_i2c_register(struct ivtv *itv, unsigned idx)  in ivtv_i2c_register()  argument
244 	struct i2c_adapter *adap = &itv->i2c_adap;  in ivtv_i2c_register()
250 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
251 				itv->card_i2c->radio);  in ivtv_i2c_register()
254 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
255 				itv->card_i2c->demod);  in ivtv_i2c_register()
258 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
259 				itv->card_i2c->tv);  in ivtv_i2c_register()
266 		return ivtv_i2c_new_ir(itv, hw, type, hw_addrs[idx]);  in ivtv_i2c_register()
274 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,  in ivtv_i2c_register()
285 		pdata.pvr150_workaround = itv->pvr150_workaround;  in ivtv_i2c_register()
286 		sd = v4l2_i2c_new_subdev_board(&itv->v4l2_dev, adap,  in ivtv_i2c_register()
289 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,  in ivtv_i2c_register()
297 struct v4l2_subdev *ivtv_find_hw(struct ivtv *itv, u32 hw)  in ivtv_find_hw()  argument
302 	spin_lock(&itv->v4l2_dev.lock);  in ivtv_find_hw()
303 	v4l2_device_for_each_subdev(sd, &itv->v4l2_dev) {  in ivtv_find_hw()
309 	spin_unlock(&itv->v4l2_dev.lock);  in ivtv_find_hw()
314 static void ivtv_setscl(struct ivtv *itv, int state)  in ivtv_setscl()  argument
322 static void ivtv_setsda(struct ivtv *itv, int state)  in ivtv_setsda()  argument
330 static int ivtv_getscl(struct ivtv *itv)  in ivtv_getscl()  argument
336 static int ivtv_getsda(struct ivtv *itv)  in ivtv_getsda()  argument
342 static void ivtv_scldelay(struct ivtv *itv)  in ivtv_scldelay()  argument
347 		ivtv_getscl(itv);  in ivtv_scldelay()
351 static int ivtv_waitscl(struct ivtv *itv, int val)  in ivtv_waitscl()  argument
355 	ivtv_scldelay(itv);  in ivtv_waitscl()
357 		if (ivtv_getscl(itv) == val)  in ivtv_waitscl()
364 static int ivtv_waitsda(struct ivtv *itv, int val)  in ivtv_waitsda()  argument
368 	ivtv_scldelay(itv);  in ivtv_waitsda()
370 		if (ivtv_getsda(itv) == val)  in ivtv_waitsda()
377 static int ivtv_ack(struct ivtv *itv)  in ivtv_ack()  argument
381 	if (ivtv_getscl(itv) == 1) {  in ivtv_ack()
383 		ivtv_setscl(itv, 0);  in ivtv_ack()
384 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_ack()
389 	ivtv_setsda(itv, 1);  in ivtv_ack()
390 	ivtv_scldelay(itv);  in ivtv_ack()
391 	ivtv_setscl(itv, 1);  in ivtv_ack()
392 	if (!ivtv_waitsda(itv, 0)) {  in ivtv_ack()
396 	ivtv_setscl(itv, 0);  in ivtv_ack()
397 	if (!ivtv_waitscl(itv, 0)) {  in ivtv_ack()
405 static int ivtv_sendbyte(struct ivtv *itv, unsigned char byte)  in ivtv_sendbyte()  argument
411 		ivtv_setscl(itv, 0);  in ivtv_sendbyte()
412 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_sendbyte()
417 		ivtv_setsda(itv, bit);  in ivtv_sendbyte()
418 		if (!ivtv_waitsda(itv, bit)) {  in ivtv_sendbyte()
422 		ivtv_setscl(itv, 1);  in ivtv_sendbyte()
423 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_sendbyte()
428 	ivtv_setscl(itv, 0);  in ivtv_sendbyte()
429 	if (!ivtv_waitscl(itv, 0)) {  in ivtv_sendbyte()
433 	return ivtv_ack(itv);  in ivtv_sendbyte()
438 static int ivtv_readbyte(struct ivtv *itv, unsigned char *byte, int nack)  in ivtv_readbyte()  argument
444 	ivtv_setsda(itv, 1);  in ivtv_readbyte()
445 	ivtv_scldelay(itv);  in ivtv_readbyte()
447 		ivtv_setscl(itv, 0);  in ivtv_readbyte()
448 		ivtv_scldelay(itv);  in ivtv_readbyte()
449 		ivtv_setscl(itv, 1);  in ivtv_readbyte()
450 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_readbyte()
454 		*byte = ((*byte)<<1)|ivtv_getsda(itv);  in ivtv_readbyte()
456 	ivtv_setscl(itv, 0);  in ivtv_readbyte()
457 	ivtv_scldelay(itv);  in ivtv_readbyte()
458 	ivtv_setsda(itv, nack);  in ivtv_readbyte()
459 	ivtv_scldelay(itv);  in ivtv_readbyte()
460 	ivtv_setscl(itv, 1);  in ivtv_readbyte()
461 	ivtv_scldelay(itv);  in ivtv_readbyte()
462 	ivtv_setscl(itv, 0);  in ivtv_readbyte()
463 	ivtv_scldelay(itv);  in ivtv_readbyte()
470 static int ivtv_start(struct ivtv *itv)  in ivtv_start()  argument
474 	sda = ivtv_getsda(itv);  in ivtv_start()
477 		ivtv_setsda(itv, 1);  in ivtv_start()
478 		if (!ivtv_waitsda(itv, 1)) {  in ivtv_start()
483 	if (ivtv_getscl(itv) != 1) {  in ivtv_start()
484 		ivtv_setscl(itv, 1);  in ivtv_start()
485 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_start()
490 	ivtv_setsda(itv, 0);  in ivtv_start()
491 	ivtv_scldelay(itv);  in ivtv_start()
496 static int ivtv_stop(struct ivtv *itv)  in ivtv_stop()  argument
500 	if (ivtv_getscl(itv) != 0) {  in ivtv_stop()
502 		ivtv_setscl(itv, 0);  in ivtv_stop()
503 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_stop()
507 	ivtv_setsda(itv, 0);  in ivtv_stop()
508 	ivtv_scldelay(itv);  in ivtv_stop()
509 	ivtv_setscl(itv, 1);  in ivtv_stop()
510 	if (!ivtv_waitscl(itv, 1)) {  in ivtv_stop()
514 	ivtv_scldelay(itv);  in ivtv_stop()
515 	ivtv_setsda(itv, 1);  in ivtv_stop()
516 	if (!ivtv_waitsda(itv, 1)) {  in ivtv_stop()
519 			ivtv_setscl(itv, 0);  in ivtv_stop()
520 			ivtv_scldelay(itv);  in ivtv_stop()
521 			ivtv_setscl(itv, 1);  in ivtv_stop()
522 			ivtv_scldelay(itv);  in ivtv_stop()
523 			ivtv_setsda(itv, 1);  in ivtv_stop()
525 		ivtv_waitsda(itv, 1);  in ivtv_stop()
533 static int ivtv_write(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len, int do_st…  in ivtv_write()  argument
539 		ret = ivtv_start(itv);  in ivtv_write()
542 			ret = ivtv_sendbyte(itv, addr<<1);  in ivtv_write()
544 				ret = ivtv_sendbyte(itv, data[i]);  in ivtv_write()
547 			ivtv_stop(itv);  in ivtv_write()
556 static int ivtv_read(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len)  in ivtv_read()  argument
562 		ret = ivtv_start(itv);  in ivtv_read()
564 			ret = ivtv_sendbyte(itv, (addr << 1) | 1);  in ivtv_read()
566 			ret = ivtv_readbyte(itv, &data[i], i == len - 1);  in ivtv_read()
568 		ivtv_stop(itv);  in ivtv_read()
581 	struct ivtv *itv = to_ivtv(v4l2_dev);  in ivtv_xfer()  local
585 	mutex_lock(&itv->i2c_bus_lock);  in ivtv_xfer()
588 			retval = ivtv_read(itv, msgs[i].addr, msgs[i].buf, msgs[i].len);  in ivtv_xfer()
593 			retval = ivtv_write(itv, msgs[i].addr, msgs[i].buf, msgs[i].len, stop);  in ivtv_xfer()
596 	mutex_unlock(&itv->i2c_bus_lock);  in ivtv_xfer()
621 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_setscl_old()  local
624 		itv->i2c_state |= 0x01;  in ivtv_setscl_old()
626 		itv->i2c_state &= ~0x01;  in ivtv_setscl_old()
630 	write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSCL_OFFSET);  in ivtv_setscl_old()
635 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_setsda_old()  local
638 		itv->i2c_state |= 0x01;  in ivtv_setsda_old()
640 		itv->i2c_state &= ~0x01;  in ivtv_setsda_old()
644 	write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSDA_OFFSET);  in ivtv_setsda_old()
649 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_getscl_old()  local
656 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_getsda_old()  local
685 int init_ivtv_i2c(struct ivtv *itv)  in init_ivtv_i2c()  argument
698 	if (itv->options.newi2c > 0) {  in init_ivtv_i2c()
699 		itv->i2c_adap = ivtv_i2c_adap_hw_template;  in init_ivtv_i2c()
701 		itv->i2c_adap = ivtv_i2c_adap_template;  in init_ivtv_i2c()
702 		itv->i2c_algo = ivtv_i2c_algo_template;  in init_ivtv_i2c()
704 	itv->i2c_algo.udelay = itv->options.i2c_clock_period / 2;  in init_ivtv_i2c()
705 	itv->i2c_algo.data = itv;  in init_ivtv_i2c()
706 	itv->i2c_adap.algo_data = &itv->i2c_algo;  in init_ivtv_i2c()
708 	sprintf(itv->i2c_adap.name + strlen(itv->i2c_adap.name), " #%d",  in init_ivtv_i2c()
709 		itv->instance);  in init_ivtv_i2c()
710 	i2c_set_adapdata(&itv->i2c_adap, &itv->v4l2_dev);  in init_ivtv_i2c()
712 	itv->i2c_client = ivtv_i2c_client_template;  in init_ivtv_i2c()
713 	itv->i2c_client.adapter = &itv->i2c_adap;  in init_ivtv_i2c()
714 	itv->i2c_adap.dev.parent = &itv->pdev->dev;  in init_ivtv_i2c()
717 	ivtv_setscl(itv, 1);  in init_ivtv_i2c()
718 	ivtv_setsda(itv, 1);  in init_ivtv_i2c()
720 	if (itv->options.newi2c > 0)  in init_ivtv_i2c()
721 		retval = i2c_add_adapter(&itv->i2c_adap);  in init_ivtv_i2c()
723 		retval = i2c_bit_add_bus(&itv->i2c_adap);  in init_ivtv_i2c()
728 void exit_ivtv_i2c(struct ivtv *itv)  in exit_ivtv_i2c()  argument
732 	i2c_del_adapter(&itv->i2c_adap);  in exit_ivtv_i2c()