177 static int ivtv_i2c_new_ir(struct ivtv *itv, u32 hw, const char *type, u8 addr)  in ivtv_i2c_new_ir()  argument
180 	struct i2c_adapter *adap = &itv->i2c_adap;  in ivtv_i2c_new_ir()
181 	struct IR_i2c_init_data *init_data = &itv->ir_i2c_init_data;  in ivtv_i2c_new_ir()
186 		if (itv->hw_flags & IVTV_HW_IR_TX_ANY)  in ivtv_i2c_new_ir()
195 	if (itv->hw_flags & IVTV_HW_IR_RX_ANY)  in ivtv_i2c_new_ir()
212 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
219 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
223 		init_data->name = itv->card_name;  in ivtv_i2c_new_ir()
239 struct i2c_client *ivtv_i2c_new_ir_legacy(struct ivtv *itv)  in ivtv_i2c_new_ir_legacy()  argument
261 	return i2c_new_probed_device(&itv->i2c_adap, &info, addr_list, NULL);  in ivtv_i2c_new_ir_legacy()
264 int ivtv_i2c_register(struct ivtv *itv, unsigned idx)  in ivtv_i2c_register()  argument
267 	struct i2c_adapter *adap = &itv->i2c_adap;  in ivtv_i2c_register()
273 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
274 				itv->card_i2c->radio);  in ivtv_i2c_register()
277 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
278 				itv->card_i2c->demod);  in ivtv_i2c_register()
281 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,  in ivtv_i2c_register()
282 				itv->card_i2c->tv);  in ivtv_i2c_register()
289 		return ivtv_i2c_new_ir(itv, hw, type, hw_addrs[idx]);  in ivtv_i2c_register()
297 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,  in ivtv_i2c_register()
307 		pdata.pvr150_workaround = itv->pvr150_workaround;  in ivtv_i2c_register()
308 		sd = v4l2_i2c_new_subdev_board(&itv->v4l2_dev, adap,  in ivtv_i2c_register()
311 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,  in ivtv_i2c_register()
319 struct v4l2_subdev *ivtv_find_hw(struct ivtv *itv, u32 hw)  in ivtv_find_hw()  argument
324 	spin_lock(&itv->v4l2_dev.lock);  in ivtv_find_hw()
325 	v4l2_device_for_each_subdev(sd, &itv->v4l2_dev) {  in ivtv_find_hw()
331 	spin_unlock(&itv->v4l2_dev.lock);  in ivtv_find_hw()
336 static void ivtv_setscl(struct ivtv *itv, int state)  in ivtv_setscl()  argument
344 static void ivtv_setsda(struct ivtv *itv, int state)  in ivtv_setsda()  argument
352 static int ivtv_getscl(struct ivtv *itv)  in ivtv_getscl()  argument
358 static int ivtv_getsda(struct ivtv *itv)  in ivtv_getsda()  argument
364 static void ivtv_scldelay(struct ivtv *itv)  in ivtv_scldelay()  argument
369 		ivtv_getscl(itv);  in ivtv_scldelay()
373 static int ivtv_waitscl(struct ivtv *itv, int val)  in ivtv_waitscl()  argument
377 	ivtv_scldelay(itv);  in ivtv_waitscl()
379 		if (ivtv_getscl(itv) == val)  in ivtv_waitscl()
386 static int ivtv_waitsda(struct ivtv *itv, int val)  in ivtv_waitsda()  argument
390 	ivtv_scldelay(itv);  in ivtv_waitsda()
392 		if (ivtv_getsda(itv) == val)  in ivtv_waitsda()
399 static int ivtv_ack(struct ivtv *itv)  in ivtv_ack()  argument
403 	if (ivtv_getscl(itv) == 1) {  in ivtv_ack()
405 		ivtv_setscl(itv, 0);  in ivtv_ack()
406 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_ack()
411 	ivtv_setsda(itv, 1);  in ivtv_ack()
412 	ivtv_scldelay(itv);  in ivtv_ack()
413 	ivtv_setscl(itv, 1);  in ivtv_ack()
414 	if (!ivtv_waitsda(itv, 0)) {  in ivtv_ack()
418 	ivtv_setscl(itv, 0);  in ivtv_ack()
419 	if (!ivtv_waitscl(itv, 0)) {  in ivtv_ack()
427 static int ivtv_sendbyte(struct ivtv *itv, unsigned char byte)  in ivtv_sendbyte()  argument
433 		ivtv_setscl(itv, 0);  in ivtv_sendbyte()
434 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_sendbyte()
439 		ivtv_setsda(itv, bit);  in ivtv_sendbyte()
440 		if (!ivtv_waitsda(itv, bit)) {  in ivtv_sendbyte()
444 		ivtv_setscl(itv, 1);  in ivtv_sendbyte()
445 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_sendbyte()
450 	ivtv_setscl(itv, 0);  in ivtv_sendbyte()
451 	if (!ivtv_waitscl(itv, 0)) {  in ivtv_sendbyte()
455 	return ivtv_ack(itv);  in ivtv_sendbyte()
460 static int ivtv_readbyte(struct ivtv *itv, unsigned char *byte, int nack)  in ivtv_readbyte()  argument
466 	ivtv_setsda(itv, 1);  in ivtv_readbyte()
467 	ivtv_scldelay(itv);  in ivtv_readbyte()
469 		ivtv_setscl(itv, 0);  in ivtv_readbyte()
470 		ivtv_scldelay(itv);  in ivtv_readbyte()
471 		ivtv_setscl(itv, 1);  in ivtv_readbyte()
472 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_readbyte()
476 		*byte = ((*byte)<<1)|ivtv_getsda(itv);  in ivtv_readbyte()
478 	ivtv_setscl(itv, 0);  in ivtv_readbyte()
479 	ivtv_scldelay(itv);  in ivtv_readbyte()
480 	ivtv_setsda(itv, nack);  in ivtv_readbyte()
481 	ivtv_scldelay(itv);  in ivtv_readbyte()
482 	ivtv_setscl(itv, 1);  in ivtv_readbyte()
483 	ivtv_scldelay(itv);  in ivtv_readbyte()
484 	ivtv_setscl(itv, 0);  in ivtv_readbyte()
485 	ivtv_scldelay(itv);  in ivtv_readbyte()
492 static int ivtv_start(struct ivtv *itv)  in ivtv_start()  argument
496 	sda = ivtv_getsda(itv);  in ivtv_start()
499 		ivtv_setsda(itv, 1);  in ivtv_start()
500 		if (!ivtv_waitsda(itv, 1)) {  in ivtv_start()
505 	if (ivtv_getscl(itv) != 1) {  in ivtv_start()
506 		ivtv_setscl(itv, 1);  in ivtv_start()
507 		if (!ivtv_waitscl(itv, 1)) {  in ivtv_start()
512 	ivtv_setsda(itv, 0);  in ivtv_start()
513 	ivtv_scldelay(itv);  in ivtv_start()
518 static int ivtv_stop(struct ivtv *itv)  in ivtv_stop()  argument
522 	if (ivtv_getscl(itv) != 0) {  in ivtv_stop()
524 		ivtv_setscl(itv, 0);  in ivtv_stop()
525 		if (!ivtv_waitscl(itv, 0)) {  in ivtv_stop()
529 	ivtv_setsda(itv, 0);  in ivtv_stop()
530 	ivtv_scldelay(itv);  in ivtv_stop()
531 	ivtv_setscl(itv, 1);  in ivtv_stop()
532 	if (!ivtv_waitscl(itv, 1)) {  in ivtv_stop()
536 	ivtv_scldelay(itv);  in ivtv_stop()
537 	ivtv_setsda(itv, 1);  in ivtv_stop()
538 	if (!ivtv_waitsda(itv, 1)) {  in ivtv_stop()
541 			ivtv_setscl(itv, 0);  in ivtv_stop()
542 			ivtv_scldelay(itv);  in ivtv_stop()
543 			ivtv_setscl(itv, 1);  in ivtv_stop()
544 			ivtv_scldelay(itv);  in ivtv_stop()
545 			ivtv_setsda(itv, 1);  in ivtv_stop()
547 		ivtv_waitsda(itv, 1);  in ivtv_stop()
555 static int ivtv_write(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len, int do_st…  in ivtv_write()  argument
561 		ret = ivtv_start(itv);  in ivtv_write()
564 			ret = ivtv_sendbyte(itv, addr<<1);  in ivtv_write()
566 				ret = ivtv_sendbyte(itv, data[i]);  in ivtv_write()
569 			ivtv_stop(itv);  in ivtv_write()
578 static int ivtv_read(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len)  in ivtv_read()  argument
584 		ret = ivtv_start(itv);  in ivtv_read()
586 			ret = ivtv_sendbyte(itv, (addr << 1) | 1);  in ivtv_read()
588 			ret = ivtv_readbyte(itv, &data[i], i == len - 1);  in ivtv_read()
590 		ivtv_stop(itv);  in ivtv_read()
603 	struct ivtv *itv = to_ivtv(v4l2_dev);  in ivtv_xfer()  local
607 	mutex_lock(&itv->i2c_bus_lock);  in ivtv_xfer()
610 			retval = ivtv_read(itv, msgs[i].addr, msgs[i].buf, msgs[i].len);  in ivtv_xfer()
615 			retval = ivtv_write(itv, msgs[i].addr, msgs[i].buf, msgs[i].len, stop);  in ivtv_xfer()
618 	mutex_unlock(&itv->i2c_bus_lock);  in ivtv_xfer()
643 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_setscl_old()  local
646 		itv->i2c_state |= 0x01;  in ivtv_setscl_old()
648 		itv->i2c_state &= ~0x01;  in ivtv_setscl_old()
652 	write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSCL_OFFSET);  in ivtv_setscl_old()
657 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_setsda_old()  local
660 		itv->i2c_state |= 0x01;  in ivtv_setsda_old()
662 		itv->i2c_state &= ~0x01;  in ivtv_setsda_old()
666 	write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSDA_OFFSET);  in ivtv_setsda_old()
671 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_getscl_old()  local
678 	struct ivtv *itv = (struct ivtv *)data;  in ivtv_getsda_old()  local
707 int init_ivtv_i2c(struct ivtv *itv)  in init_ivtv_i2c()  argument
720 	if (itv->options.newi2c > 0) {  in init_ivtv_i2c()
721 		itv->i2c_adap = ivtv_i2c_adap_hw_template;  in init_ivtv_i2c()
723 		itv->i2c_adap = ivtv_i2c_adap_template;  in init_ivtv_i2c()
724 		itv->i2c_algo = ivtv_i2c_algo_template;  in init_ivtv_i2c()
726 	itv->i2c_algo.udelay = itv->options.i2c_clock_period / 2;  in init_ivtv_i2c()
727 	itv->i2c_algo.data = itv;  in init_ivtv_i2c()
728 	itv->i2c_adap.algo_data = &itv->i2c_algo;  in init_ivtv_i2c()
730 	sprintf(itv->i2c_adap.name + strlen(itv->i2c_adap.name), " #%d",  in init_ivtv_i2c()
731 		itv->instance);  in init_ivtv_i2c()
732 	i2c_set_adapdata(&itv->i2c_adap, &itv->v4l2_dev);  in init_ivtv_i2c()
734 	itv->i2c_client = ivtv_i2c_client_template;  in init_ivtv_i2c()
735 	itv->i2c_client.adapter = &itv->i2c_adap;  in init_ivtv_i2c()
736 	itv->i2c_adap.dev.parent = &itv->pdev->dev;  in init_ivtv_i2c()
739 	ivtv_setscl(itv, 1);  in init_ivtv_i2c()
740 	ivtv_setsda(itv, 1);  in init_ivtv_i2c()
742 	if (itv->options.newi2c > 0)  in init_ivtv_i2c()
743 		retval = i2c_add_adapter(&itv->i2c_adap);  in init_ivtv_i2c()
745 		retval = i2c_bit_add_bus(&itv->i2c_adap);  in init_ivtv_i2c()
750 void exit_ivtv_i2c(struct ivtv *itv)  in exit_ivtv_i2c()  argument
754 	i2c_del_adapter(&itv->i2c_adap);  in exit_ivtv_i2c()