[deliverable/linux.git] / drivers / media / dvb-frontends / stb6100_proc.h

/*
	STB6100 Silicon Tuner wrapper
	Copyright (C)2009 Igor M. Liplianin (liplianin@me.by)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <linux/dvb/frontend.h>
#include "dvb_frontend.h"

static int stb6100_get_freq(struct dvb_frontend *fe, u32 *frequency)
{
	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
	int err = 0;

	if (tuner_ops->get_frequency) {
		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 1);

		err = tuner_ops->get_frequency(fe, frequency);
		if (err < 0) {
			printk("%s: Invalid parameter\n", __func__);
			return err;
		}

		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 0);
	}

	return 0;
}

static int stb6100_set_freq(struct dvb_frontend *fe, u32 frequency)
{
	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
	u32 bw = c->bandwidth_hz;
	int err = 0;

	c->frequency = frequency;
	c->bandwidth_hz = 0;		/* Don't adjust the bandwidth */

	if (tuner_ops->set_params) {
		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 1);

		err = tuner_ops->set_params(fe);
		c->bandwidth_hz = bw;
		if (err < 0) {
			printk("%s: Invalid parameter\n", __func__);
			return err;
		}

		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 0);

	}

	return 0;
}

static int stb6100_get_bandw(struct dvb_frontend *fe, u32 *bandwidth)
{
	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
	int err = 0;

	if (tuner_ops->get_bandwidth) {
		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 1);

		err = tuner_ops->get_bandwidth(fe, bandwidth);
		if (err < 0) {
			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
			return err;
		}

		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 0);
	}

	return 0;
}

static int stb6100_set_bandw(struct dvb_frontend *fe, u32 bandwidth)
{
	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
	u32 freq = c->frequency;
	int err = 0;

	c->bandwidth_hz = bandwidth;
	c->frequency = 0;		/* Don't adjust the frequency */

	if (tuner_ops->set_params) {
		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 1);

		err = tuner_ops->set_params(fe);
		c->frequency = freq;
		if (err < 0) {
			printk(KERN_ERR "%s: Invalid parameter\n", __func__);
			return err;
		}

		if (frontend_ops->i2c_gate_ctrl)
			frontend_ops->i2c_gate_ctrl(fe, 0);

	}

	return 0;
}
Commit	Line	Data
b699c271 IL	1	/*
	2	STB6100 Silicon Tuner wrapper
	3	Copyright (C)2009 Igor M. Liplianin (liplianin@me.by)
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 2 of the License, or
	8	(at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software
	17	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*/
	19
65f0f686 MCC	20	#include <linux/dvb/frontend.h>
	21	#include "dvb_frontend.h"
	22
b699c271 IL	23	static int stb6100_get_freq(struct dvb_frontend fe, u32 frequency)
b699c271 IL	24	{
20721185 EG	25	struct dvb_frontend_ops *frontend_ops = &fe->ops;
20721185 EG	26	struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
b699c271 IL	27	int err = 0;
b699c271 IL	28
65f0f686	29	if (tuner_ops->get_frequency) {
b699c271 IL	30	if (frontend_ops->i2c_gate_ctrl)
	31	frontend_ops->i2c_gate_ctrl(fe, 1);
	32
65f0f686	33	err = tuner_ops->get_frequency(fe, frequency);
b699c271	34	if (err < 0) {
65f0f686	35	printk("%s: Invalid parameter\n", __func__);
b699c271 IL	36	return err;
	37	}
	38
	39	if (frontend_ops->i2c_gate_ctrl)
	40	frontend_ops->i2c_gate_ctrl(fe, 0);
b699c271 IL	41	}
	42
	43	return 0;
	44	}
	45
	46	static int stb6100_set_freq(struct dvb_frontend *fe, u32 frequency)
	47	{
20721185 EG	48	struct dvb_frontend_ops *frontend_ops = &fe->ops;
20721185 EG	49	struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
65f0f686 MCC	50	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
65f0f686 MCC	51	u32 bw = c->bandwidth_hz;
b699c271 IL	52	int err = 0;
b699c271 IL	53
65f0f686 MCC	54	c->frequency = frequency;
65f0f686 MCC	55	c->bandwidth_hz = 0; /* Don't adjust the bandwidth */
20721185	56
65f0f686	57	if (tuner_ops->set_params) {
b699c271 IL	58	if (frontend_ops->i2c_gate_ctrl)
	59	frontend_ops->i2c_gate_ctrl(fe, 1);
	60
65f0f686 MCC	61	err = tuner_ops->set_params(fe);
65f0f686 MCC	62	c->bandwidth_hz = bw;
b699c271	63	if (err < 0) {
65f0f686	64	printk("%s: Invalid parameter\n", __func__);
b699c271 IL	65	return err;
	66	}
	67
	68	if (frontend_ops->i2c_gate_ctrl)
	69	frontend_ops->i2c_gate_ctrl(fe, 0);
	70
	71	}
	72
	73	return 0;
	74	}
	75
	76	static int stb6100_get_bandw(struct dvb_frontend fe, u32 bandwidth)
	77	{
20721185 EG	78	struct dvb_frontend_ops *frontend_ops = &fe->ops;
20721185 EG	79	struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
b699c271 IL	80	int err = 0;
b699c271 IL	81
65f0f686	82	if (tuner_ops->get_bandwidth) {
b699c271 IL	83	if (frontend_ops->i2c_gate_ctrl)
	84	frontend_ops->i2c_gate_ctrl(fe, 1);
	85
65f0f686	86	err = tuner_ops->get_bandwidth(fe, bandwidth);
b699c271 IL	87	if (err < 0) {
	88	printk(KERN_ERR "%s: Invalid parameter\n", __func__);
	89	return err;
	90	}
	91
	92	if (frontend_ops->i2c_gate_ctrl)
	93	frontend_ops->i2c_gate_ctrl(fe, 0);
b699c271 IL	94	}
	95
	96	return 0;
	97	}
	98
	99	static int stb6100_set_bandw(struct dvb_frontend *fe, u32 bandwidth)
	100	{
20721185 EG	101	struct dvb_frontend_ops *frontend_ops = &fe->ops;
20721185 EG	102	struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops;
65f0f686 MCC	103	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
65f0f686 MCC	104	u32 freq = c->frequency;
b699c271 IL	105	int err = 0;
b699c271 IL	106
65f0f686 MCC	107	c->bandwidth_hz = bandwidth;
65f0f686 MCC	108	c->frequency = 0; /* Don't adjust the frequency */
20721185	109
65f0f686	110	if (tuner_ops->set_params) {
b699c271 IL	111	if (frontend_ops->i2c_gate_ctrl)
	112	frontend_ops->i2c_gate_ctrl(fe, 1);
	113
65f0f686 MCC	114	err = tuner_ops->set_params(fe);
65f0f686 MCC	115	c->frequency = freq;
b699c271 IL	116	if (err < 0) {
	117	printk(KERN_ERR "%s: Invalid parameter\n", __func__);
	118	return err;
	119	}
	120
	121	if (frontend_ops->i2c_gate_ctrl)
	122	frontend_ops->i2c_gate_ctrl(fe, 0);
	123
	124	}
	125
	126	return 0;
	127	}