[deliverable/linux.git] / drivers / media / dvb-frontends / dvb_dummy_fe.c

/*
 *  Driver for Dummy Frontend
 *
 *  Written by Emard <emard@softhome.net>
 *
 *  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/module.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/slab.h>

#include "dvb_frontend.h"
#include "dvb_dummy_fe.h"


struct dvb_dummy_fe_state {
	struct dvb_frontend frontend;
};


static int dvb_dummy_fe_read_status(struct dvb_frontend *fe,
				    enum fe_status *status)
{
	*status = FE_HAS_SIGNAL
		| FE_HAS_CARRIER
		| FE_HAS_VITERBI
		| FE_HAS_SYNC
		| FE_HAS_LOCK;

	return 0;
}

static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
{
	*ber = 0;
	return 0;
}

static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
	*strength = 0;
	return 0;
}

static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
{
	*snr = 0;
	return 0;
}

static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
	*ucblocks = 0;
	return 0;
}

/*
 * Only needed if it actually reads something from the hardware
 */
static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe)
{
	return 0;
}

static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe)
{
	if (fe->ops.tuner_ops.set_params) {
		fe->ops.tuner_ops.set_params(fe);
		if (fe->ops.i2c_gate_ctrl)
			fe->ops.i2c_gate_ctrl(fe, 0);
	}

	return 0;
}

static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
{
	return 0;
}

static int dvb_dummy_fe_init(struct dvb_frontend* fe)
{
	return 0;
}

static int dvb_dummy_fe_set_tone(struct dvb_frontend *fe,
				 enum fe_sec_tone_mode tone)
{
	return 0;
}

static int dvb_dummy_fe_set_voltage(struct dvb_frontend *fe,
				    enum fe_sec_voltage voltage)
{
	return 0;
}

static void dvb_dummy_fe_release(struct dvb_frontend* fe)
{
	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
	kfree(state);
}

static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;

struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
{
	struct dvb_dummy_fe_state* state = NULL;

	/* allocate memory for the internal state */
	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (!state)
		return NULL;

	/* create dvb_frontend */
	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;
}

static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;

struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
{
	struct dvb_dummy_fe_state* state = NULL;

	/* allocate memory for the internal state */
	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (!state)
		return NULL;

	/* create dvb_frontend */
	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;
}

static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;

struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
{
	struct dvb_dummy_fe_state* state = NULL;

	/* allocate memory for the internal state */
	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (!state)
		return NULL;

	/* create dvb_frontend */
	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;
}

static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
	.delsys = { SYS_DVBT },
	.info = {
		.name			= "Dummy DVB-T",
		.frequency_min		= 0,
		.frequency_max		= 863250000,
		.frequency_stepsize	= 62500,
		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
				FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
				FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
				FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
				FE_CAN_TRANSMISSION_MODE_AUTO |
				FE_CAN_GUARD_INTERVAL_AUTO |
				FE_CAN_HIERARCHY_AUTO,
	},

	.release = dvb_dummy_fe_release,

	.init = dvb_dummy_fe_init,
	.sleep = dvb_dummy_fe_sleep,

	.set_frontend = dvb_dummy_fe_set_frontend,
	.get_frontend = dvb_dummy_fe_get_frontend,

	.read_status = dvb_dummy_fe_read_status,
	.read_ber = dvb_dummy_fe_read_ber,
	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	.read_snr = dvb_dummy_fe_read_snr,
	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
};

static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
	.delsys = { SYS_DVBC_ANNEX_A },
	.info = {
		.name			= "Dummy DVB-C",
		.frequency_stepsize	= 62500,
		.frequency_min		= 51000000,
		.frequency_max		= 858000000,
		.symbol_rate_min	= (57840000/2)/64,     /* SACLK/64 == (XIN/2)/64 */
		.symbol_rate_max	= (57840000/2)/4,      /* SACLK/4 */
		.caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
			FE_CAN_QAM_128 | FE_CAN_QAM_256 |
			FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO
	},

	.release = dvb_dummy_fe_release,

	.init = dvb_dummy_fe_init,
	.sleep = dvb_dummy_fe_sleep,

	.set_frontend = dvb_dummy_fe_set_frontend,
	.get_frontend = dvb_dummy_fe_get_frontend,

	.read_status = dvb_dummy_fe_read_status,
	.read_ber = dvb_dummy_fe_read_ber,
	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	.read_snr = dvb_dummy_fe_read_snr,
	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
};

static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
	.delsys = { SYS_DVBS },
	.info = {
		.name			= "Dummy DVB-S",
		.frequency_min		= 950000,
		.frequency_max		= 2150000,
		.frequency_stepsize	= 250,           /* kHz for QPSK frontends */
		.frequency_tolerance	= 29500,
		.symbol_rate_min	= 1000000,
		.symbol_rate_max	= 45000000,
		.caps = FE_CAN_INVERSION_AUTO |
			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
			FE_CAN_QPSK
	},

	.release = dvb_dummy_fe_release,

	.init = dvb_dummy_fe_init,
	.sleep = dvb_dummy_fe_sleep,

	.set_frontend = dvb_dummy_fe_set_frontend,
	.get_frontend = dvb_dummy_fe_get_frontend,

	.read_status = dvb_dummy_fe_read_status,
	.read_ber = dvb_dummy_fe_read_ber,
	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	.read_snr = dvb_dummy_fe_read_snr,
	.read_ucblocks = dvb_dummy_fe_read_ucblocks,

	.set_voltage = dvb_dummy_fe_set_voltage,
	.set_tone = dvb_dummy_fe_set_tone,
};

MODULE_DESCRIPTION("DVB DUMMY Frontend");
MODULE_AUTHOR("Emard");
MODULE_LICENSE("GPL");

EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Driver for Dummy Frontend
	3	*
	4	* Written by Emard <emard@softhome.net>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	*
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.=
	20	*/
	21
	22	#include <linux/module.h>
1da177e4	23	#include <linux/init.h>
4e57b681 TS	24	#include <linux/string.h>
4e57b681 TS	25	#include <linux/slab.h>
1da177e4 LT	26
	27	#include "dvb_frontend.h"
	28	#include "dvb_dummy_fe.h"
	29
	30
	31	struct dvb_dummy_fe_state {
1da177e4 LT	32	struct dvb_frontend frontend;
	33	};
	34
	35
0df289a2 MCC	36	static int dvb_dummy_fe_read_status(struct dvb_frontend *fe,
0df289a2 MCC	37	enum fe_status *status)
1da177e4 LT	38	{
	39	*status = FE_HAS_SIGNAL
	40	\| FE_HAS_CARRIER
	41	\| FE_HAS_VITERBI
	42	\| FE_HAS_SYNC
	43	\| FE_HAS_LOCK;
	44
	45	return 0;
	46	}
	47
	48	static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
	49	{
	50	*ber = 0;
	51	return 0;
	52	}
	53
	54	static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
	55	{
	56	*strength = 0;
	57	return 0;
	58	}
	59
	60	static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
	61	{
	62	*snr = 0;
	63	return 0;
	64	}
	65
	66	static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
	67	{
	68	*ucblocks = 0;
	69	return 0;
	70	}
	71
7c61d80a MCC	72	/*
	73	* Only needed if it actually reads something from the hardware
	74	*/
	75	static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe)
1da177e4 LT	76	{
	77	return 0;
	78	}
	79
d53b5102	80	static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe)
1da177e4	81	{
bccd7003	82	if (fe->ops.tuner_ops.set_params) {
14d24d14	83	fe->ops.tuner_ops.set_params(fe);
bccd7003 PB	84	if (fe->ops.i2c_gate_ctrl)
bccd7003 PB	85	fe->ops.i2c_gate_ctrl(fe, 0);
089e9809 AQ	86	}
089e9809 AQ	87
1da177e4 LT	88	return 0;
	89	}
	90
	91	static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
	92	{
	93	return 0;
	94	}
	95
	96	static int dvb_dummy_fe_init(struct dvb_frontend* fe)
	97	{
	98	return 0;
	99	}
	100
0df289a2 MCC	101	static int dvb_dummy_fe_set_tone(struct dvb_frontend *fe,
0df289a2 MCC	102	enum fe_sec_tone_mode tone)
1da177e4 LT	103	{
	104	return 0;
	105	}
	106
0df289a2 MCC	107	static int dvb_dummy_fe_set_voltage(struct dvb_frontend *fe,
0df289a2 MCC	108	enum fe_sec_voltage voltage)
1da177e4 LT	109	{
	110	return 0;
	111	}
	112
	113	static void dvb_dummy_fe_release(struct dvb_frontend* fe)
	114	{
b8742700	115	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
1da177e4 LT	116	kfree(state);
	117	}
	118
	119	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
	120
	121	struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
	122	{
	123	struct dvb_dummy_fe_state* state = NULL;
	124
	125	/* allocate memory for the internal state */
084e24ac	126	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	127	if (!state)
3f037426 PST	128	return NULL;
1da177e4	129
1da177e4	130	/* create dvb_frontend */
dea74869	131	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	132	state->frontend.demodulator_priv = state;
1da177e4 LT	133	return &state->frontend;
1da177e4 LT	134	}
	135
	136	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
	137
d45b9b8a	138	struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
1da177e4 LT	139	{
	140	struct dvb_dummy_fe_state* state = NULL;
	141
	142	/* allocate memory for the internal state */
084e24ac	143	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	144	if (!state)
3f037426 PST	145	return NULL;
1da177e4	146
1da177e4	147	/* create dvb_frontend */
dea74869	148	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	149	state->frontend.demodulator_priv = state;
1da177e4 LT	150	return &state->frontend;
1da177e4 LT	151	}
	152
	153	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
	154
d45b9b8a	155	struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
1da177e4 LT	156	{
	157	struct dvb_dummy_fe_state* state = NULL;
	158
	159	/* allocate memory for the internal state */
084e24ac	160	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	161	if (!state)
3f037426 PST	162	return NULL;
1da177e4	163
1da177e4	164	/* create dvb_frontend */
dea74869	165	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	166	state->frontend.demodulator_priv = state;
1da177e4 LT	167	return &state->frontend;
1da177e4 LT	168	}
	169
	170	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
d53b5102	171	.delsys = { SYS_DVBT },
1da177e4 LT	172	.info = {
1da177e4 LT	173	.name = "Dummy DVB-T",
1da177e4 LT	174	.frequency_min = 0,
	175	.frequency_max = 863250000,
	176	.frequency_stepsize = 62500,
	177	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	178	FE_CAN_FEC_4_5 \| FE_CAN_FEC_5_6 \| FE_CAN_FEC_6_7 \|
	179	FE_CAN_FEC_7_8 \| FE_CAN_FEC_8_9 \| FE_CAN_FEC_AUTO \|
	180	FE_CAN_QAM_16 \| FE_CAN_QAM_64 \| FE_CAN_QAM_AUTO \|
	181	FE_CAN_TRANSMISSION_MODE_AUTO \|
	182	FE_CAN_GUARD_INTERVAL_AUTO \|
	183	FE_CAN_HIERARCHY_AUTO,
	184	},
	185
	186	.release = dvb_dummy_fe_release,
	187
	188	.init = dvb_dummy_fe_init,
	189	.sleep = dvb_dummy_fe_sleep,
	190
d53b5102 MCC	191	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	192	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	193
	194	.read_status = dvb_dummy_fe_read_status,
	195	.read_ber = dvb_dummy_fe_read_ber,
	196	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	197	.read_snr = dvb_dummy_fe_read_snr,
	198	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	199	};
	200
	201	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
d53b5102	202	.delsys = { SYS_DVBC_ANNEX_A },
1da177e4 LT	203	.info = {
1da177e4 LT	204	.name = "Dummy DVB-C",
1da177e4 LT	205	.frequency_stepsize = 62500,
	206	.frequency_min = 51000000,
	207	.frequency_max = 858000000,
	208	.symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
	209	.symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
	210	.caps = FE_CAN_QAM_16 \| FE_CAN_QAM_32 \| FE_CAN_QAM_64 \|
	211	FE_CAN_QAM_128 \| FE_CAN_QAM_256 \|
	212	FE_CAN_FEC_AUTO \| FE_CAN_INVERSION_AUTO
	213	},
	214
	215	.release = dvb_dummy_fe_release,
	216
	217	.init = dvb_dummy_fe_init,
	218	.sleep = dvb_dummy_fe_sleep,
	219
d53b5102 MCC	220	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	221	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	222
	223	.read_status = dvb_dummy_fe_read_status,
	224	.read_ber = dvb_dummy_fe_read_ber,
	225	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	226	.read_snr = dvb_dummy_fe_read_snr,
	227	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	228	};
	229
	230	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
d53b5102	231	.delsys = { SYS_DVBS },
1da177e4 LT	232	.info = {
1da177e4 LT	233	.name = "Dummy DVB-S",
1da177e4 LT	234	.frequency_min = 950000,
	235	.frequency_max = 2150000,
	236	.frequency_stepsize = 250, /* kHz for QPSK frontends */
	237	.frequency_tolerance = 29500,
	238	.symbol_rate_min = 1000000,
	239	.symbol_rate_max = 45000000,
	240	.caps = FE_CAN_INVERSION_AUTO \|
	241	FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	242	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \| FE_CAN_FEC_AUTO \|
	243	FE_CAN_QPSK
	244	},
	245
	246	.release = dvb_dummy_fe_release,
	247
	248	.init = dvb_dummy_fe_init,
	249	.sleep = dvb_dummy_fe_sleep,
	250
d53b5102 MCC	251	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	252	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	253
	254	.read_status = dvb_dummy_fe_read_status,
	255	.read_ber = dvb_dummy_fe_read_ber,
	256	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	257	.read_snr = dvb_dummy_fe_read_snr,
	258	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	259
	260	.set_voltage = dvb_dummy_fe_set_voltage,
	261	.set_tone = dvb_dummy_fe_set_tone,
	262	};
	263
	264	MODULE_DESCRIPTION("DVB DUMMY Frontend");
	265	MODULE_AUTHOR("Emard");
	266	MODULE_LICENSE("GPL");
	267
	268	EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
	269	EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
	270	EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);