[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, fe_status_t* 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, fe_sec_tone_mode_t tone)
{
	return 0;
}

static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t 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
	36	static int dvb_dummy_fe_read_status(struct dvb_frontend* fe, fe_status_t* status)
	37	{
	38	*status = FE_HAS_SIGNAL
	39	\| FE_HAS_CARRIER
	40	\| FE_HAS_VITERBI
	41	\| FE_HAS_SYNC
	42	\| FE_HAS_LOCK;
	43
	44	return 0;
	45	}
	46
	47	static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
	48	{
	49	*ber = 0;
	50	return 0;
	51	}
	52
	53	static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
	54	{
	55	*strength = 0;
	56	return 0;
	57	}
	58
	59	static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
	60	{
	61	*snr = 0;
	62	return 0;
	63	}
	64
	65	static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
	66	{
	67	*ucblocks = 0;
	68	return 0;
	69	}
	70
7c61d80a MCC	71	/*
	72	* Only needed if it actually reads something from the hardware
	73	*/
	74	static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe)
1da177e4 LT	75	{
	76	return 0;
	77	}
	78
d53b5102	79	static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe)
1da177e4	80	{
bccd7003	81	if (fe->ops.tuner_ops.set_params) {
14d24d14	82	fe->ops.tuner_ops.set_params(fe);
bccd7003 PB	83	if (fe->ops.i2c_gate_ctrl)
bccd7003 PB	84	fe->ops.i2c_gate_ctrl(fe, 0);
089e9809 AQ	85	}
089e9809 AQ	86
1da177e4 LT	87	return 0;
	88	}
	89
	90	static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
	91	{
	92	return 0;
	93	}
	94
	95	static int dvb_dummy_fe_init(struct dvb_frontend* fe)
	96	{
	97	return 0;
	98	}
	99
	100	static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
	101	{
	102	return 0;
	103	}
	104
	105	static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
	106	{
	107	return 0;
	108	}
	109
	110	static void dvb_dummy_fe_release(struct dvb_frontend* fe)
	111	{
b8742700	112	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
1da177e4 LT	113	kfree(state);
	114	}
	115
	116	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
	117
	118	struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
	119	{
	120	struct dvb_dummy_fe_state* state = NULL;
	121
	122	/* allocate memory for the internal state */
084e24ac	123	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	124	if (!state)
3f037426 PST	125	return NULL;
1da177e4	126
1da177e4	127	/* create dvb_frontend */
dea74869	128	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	129	state->frontend.demodulator_priv = state;
1da177e4 LT	130	return &state->frontend;
1da177e4 LT	131	}
	132
	133	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
	134
d45b9b8a	135	struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
1da177e4 LT	136	{
	137	struct dvb_dummy_fe_state* state = NULL;
	138
	139	/* allocate memory for the internal state */
084e24ac	140	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	141	if (!state)
3f037426 PST	142	return NULL;
1da177e4	143
1da177e4	144	/* create dvb_frontend */
dea74869	145	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	146	state->frontend.demodulator_priv = state;
1da177e4 LT	147	return &state->frontend;
1da177e4 LT	148	}
	149
	150	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
	151
d45b9b8a	152	struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
1da177e4 LT	153	{
	154	struct dvb_dummy_fe_state* state = NULL;
	155
	156	/* allocate memory for the internal state */
084e24ac	157	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	158	if (!state)
3f037426 PST	159	return NULL;
1da177e4	160
1da177e4	161	/* create dvb_frontend */
dea74869	162	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	163	state->frontend.demodulator_priv = state;
1da177e4 LT	164	return &state->frontend;
1da177e4 LT	165	}
	166
	167	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
d53b5102	168	.delsys = { SYS_DVBT },
1da177e4 LT	169	.info = {
1da177e4 LT	170	.name = "Dummy DVB-T",
1da177e4 LT	171	.frequency_min = 0,
	172	.frequency_max = 863250000,
	173	.frequency_stepsize = 62500,
	174	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	175	FE_CAN_FEC_4_5 \| FE_CAN_FEC_5_6 \| FE_CAN_FEC_6_7 \|
	176	FE_CAN_FEC_7_8 \| FE_CAN_FEC_8_9 \| FE_CAN_FEC_AUTO \|
	177	FE_CAN_QAM_16 \| FE_CAN_QAM_64 \| FE_CAN_QAM_AUTO \|
	178	FE_CAN_TRANSMISSION_MODE_AUTO \|
	179	FE_CAN_GUARD_INTERVAL_AUTO \|
	180	FE_CAN_HIERARCHY_AUTO,
	181	},
	182
	183	.release = dvb_dummy_fe_release,
	184
	185	.init = dvb_dummy_fe_init,
	186	.sleep = dvb_dummy_fe_sleep,
	187
d53b5102 MCC	188	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	189	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	190
	191	.read_status = dvb_dummy_fe_read_status,
	192	.read_ber = dvb_dummy_fe_read_ber,
	193	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	194	.read_snr = dvb_dummy_fe_read_snr,
	195	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	196	};
	197
	198	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
d53b5102	199	.delsys = { SYS_DVBC_ANNEX_A },
1da177e4 LT	200	.info = {
1da177e4 LT	201	.name = "Dummy DVB-C",
1da177e4 LT	202	.frequency_stepsize = 62500,
	203	.frequency_min = 51000000,
	204	.frequency_max = 858000000,
	205	.symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
	206	.symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
	207	.caps = FE_CAN_QAM_16 \| FE_CAN_QAM_32 \| FE_CAN_QAM_64 \|
	208	FE_CAN_QAM_128 \| FE_CAN_QAM_256 \|
	209	FE_CAN_FEC_AUTO \| FE_CAN_INVERSION_AUTO
	210	},
	211
	212	.release = dvb_dummy_fe_release,
	213
	214	.init = dvb_dummy_fe_init,
	215	.sleep = dvb_dummy_fe_sleep,
	216
d53b5102 MCC	217	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	218	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	219
	220	.read_status = dvb_dummy_fe_read_status,
	221	.read_ber = dvb_dummy_fe_read_ber,
	222	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	223	.read_snr = dvb_dummy_fe_read_snr,
	224	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	225	};
	226
	227	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
d53b5102	228	.delsys = { SYS_DVBS },
1da177e4 LT	229	.info = {
1da177e4 LT	230	.name = "Dummy DVB-S",
1da177e4 LT	231	.frequency_min = 950000,
	232	.frequency_max = 2150000,
	233	.frequency_stepsize = 250, /* kHz for QPSK frontends */
	234	.frequency_tolerance = 29500,
	235	.symbol_rate_min = 1000000,
	236	.symbol_rate_max = 45000000,
	237	.caps = FE_CAN_INVERSION_AUTO \|
	238	FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	239	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \| FE_CAN_FEC_AUTO \|
	240	FE_CAN_QPSK
	241	},
	242
	243	.release = dvb_dummy_fe_release,
	244
	245	.init = dvb_dummy_fe_init,
	246	.sleep = dvb_dummy_fe_sleep,
	247
d53b5102 MCC	248	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	249	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	250
	251	.read_status = dvb_dummy_fe_read_status,
	252	.read_ber = dvb_dummy_fe_read_ber,
	253	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	254	.read_snr = dvb_dummy_fe_read_snr,
	255	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	256
	257	.set_voltage = dvb_dummy_fe_set_voltage,
	258	.set_tone = dvb_dummy_fe_set_tone,
	259	};
	260
	261	MODULE_DESCRIPTION("DVB DUMMY Frontend");
	262	MODULE_AUTHOR("Emard");
	263	MODULE_LICENSE("GPL");
	264
	265	EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
	266	EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
	267	EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);