[mirror_ubuntu-zesty-kernel.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;
}

/*
 * Should only be implemented if it actually reads something from the hardware.
 * Also, it should check for the locks, in order to avoid report wrong data
 * to userspace.
 */
static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe,
				     struct dtv_frontend_properties *p)
{
	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 const 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 const 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 const 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 const 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 const 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 const 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	72	/*
7e3e68bc MCC	73	* Should only be implemented if it actually reads something from the hardware.
	74	* Also, it should check for the locks, in order to avoid report wrong data
	75	* to userspace.
7c61d80a	76	*/
7e3e68bc MCC	77	static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe,
7e3e68bc MCC	78	struct dtv_frontend_properties *p)
1da177e4 LT	79	{
	80	return 0;
	81	}
	82
d53b5102	83	static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe)
1da177e4	84	{
bccd7003	85	if (fe->ops.tuner_ops.set_params) {
14d24d14	86	fe->ops.tuner_ops.set_params(fe);
bccd7003 PB	87	if (fe->ops.i2c_gate_ctrl)
bccd7003 PB	88	fe->ops.i2c_gate_ctrl(fe, 0);
089e9809 AQ	89	}
089e9809 AQ	90
1da177e4 LT	91	return 0;
	92	}
	93
	94	static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
	95	{
	96	return 0;
	97	}
	98
	99	static int dvb_dummy_fe_init(struct dvb_frontend* fe)
	100	{
	101	return 0;
	102	}
	103
0df289a2 MCC	104	static int dvb_dummy_fe_set_tone(struct dvb_frontend *fe,
0df289a2 MCC	105	enum fe_sec_tone_mode tone)
1da177e4 LT	106	{
	107	return 0;
	108	}
	109
0df289a2 MCC	110	static int dvb_dummy_fe_set_voltage(struct dvb_frontend *fe,
0df289a2 MCC	111	enum fe_sec_voltage voltage)
1da177e4 LT	112	{
	113	return 0;
	114	}
	115
	116	static void dvb_dummy_fe_release(struct dvb_frontend* fe)
	117	{
b8742700	118	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
1da177e4 LT	119	kfree(state);
	120	}
	121
bd336e63	122	static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
1da177e4 LT	123
	124	struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
	125	{
	126	struct dvb_dummy_fe_state* state = NULL;
	127
	128	/* allocate memory for the internal state */
084e24ac	129	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	130	if (!state)
3f037426 PST	131	return NULL;
1da177e4	132
1da177e4	133	/* create dvb_frontend */
dea74869	134	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	135	state->frontend.demodulator_priv = state;
1da177e4 LT	136	return &state->frontend;
1da177e4 LT	137	}
1da177e4 LT	138
bd336e63	139	static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
1da177e4	140
d45b9b8a	141	struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
1da177e4 LT	142	{
	143	struct dvb_dummy_fe_state* state = NULL;
	144
	145	/* allocate memory for the internal state */
084e24ac	146	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	147	if (!state)
3f037426 PST	148	return NULL;
1da177e4	149
1da177e4	150	/* create dvb_frontend */
dea74869	151	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	152	state->frontend.demodulator_priv = state;
1da177e4 LT	153	return &state->frontend;
1da177e4 LT	154	}
1da177e4 LT	155
bd336e63	156	static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
1da177e4	157
d45b9b8a	158	struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
1da177e4 LT	159	{
	160	struct dvb_dummy_fe_state* state = NULL;
	161
	162	/* allocate memory for the internal state */
084e24ac	163	state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
3f037426 PST	164	if (!state)
3f037426 PST	165	return NULL;
1da177e4	166
1da177e4	167	/* create dvb_frontend */
dea74869	168	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	169	state->frontend.demodulator_priv = state;
1da177e4 LT	170	return &state->frontend;
1da177e4 LT	171	}
1da177e4 LT	172
bd336e63	173	static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
d53b5102	174	.delsys = { SYS_DVBT },
1da177e4 LT	175	.info = {
1da177e4 LT	176	.name = "Dummy DVB-T",
1da177e4 LT	177	.frequency_min = 0,
	178	.frequency_max = 863250000,
	179	.frequency_stepsize = 62500,
	180	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	181	FE_CAN_FEC_4_5 \| FE_CAN_FEC_5_6 \| FE_CAN_FEC_6_7 \|
	182	FE_CAN_FEC_7_8 \| FE_CAN_FEC_8_9 \| FE_CAN_FEC_AUTO \|
	183	FE_CAN_QAM_16 \| FE_CAN_QAM_64 \| FE_CAN_QAM_AUTO \|
	184	FE_CAN_TRANSMISSION_MODE_AUTO \|
	185	FE_CAN_GUARD_INTERVAL_AUTO \|
	186	FE_CAN_HIERARCHY_AUTO,
	187	},
	188
	189	.release = dvb_dummy_fe_release,
	190
	191	.init = dvb_dummy_fe_init,
	192	.sleep = dvb_dummy_fe_sleep,
	193
d53b5102 MCC	194	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	195	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	196
	197	.read_status = dvb_dummy_fe_read_status,
	198	.read_ber = dvb_dummy_fe_read_ber,
	199	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	200	.read_snr = dvb_dummy_fe_read_snr,
	201	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	202	};
	203
bd336e63	204	static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
d53b5102	205	.delsys = { SYS_DVBC_ANNEX_A },
1da177e4 LT	206	.info = {
1da177e4 LT	207	.name = "Dummy DVB-C",
1da177e4 LT	208	.frequency_stepsize = 62500,
	209	.frequency_min = 51000000,
	210	.frequency_max = 858000000,
	211	.symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
	212	.symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
	213	.caps = FE_CAN_QAM_16 \| FE_CAN_QAM_32 \| FE_CAN_QAM_64 \|
	214	FE_CAN_QAM_128 \| FE_CAN_QAM_256 \|
	215	FE_CAN_FEC_AUTO \| FE_CAN_INVERSION_AUTO
	216	},
	217
	218	.release = dvb_dummy_fe_release,
	219
	220	.init = dvb_dummy_fe_init,
	221	.sleep = dvb_dummy_fe_sleep,
	222
d53b5102 MCC	223	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	224	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	225
	226	.read_status = dvb_dummy_fe_read_status,
	227	.read_ber = dvb_dummy_fe_read_ber,
	228	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	229	.read_snr = dvb_dummy_fe_read_snr,
	230	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	231	};
	232
bd336e63	233	static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
d53b5102	234	.delsys = { SYS_DVBS },
1da177e4 LT	235	.info = {
1da177e4 LT	236	.name = "Dummy DVB-S",
1da177e4 LT	237	.frequency_min = 950000,
	238	.frequency_max = 2150000,
	239	.frequency_stepsize = 250, /* kHz for QPSK frontends */
	240	.frequency_tolerance = 29500,
	241	.symbol_rate_min = 1000000,
	242	.symbol_rate_max = 45000000,
	243	.caps = FE_CAN_INVERSION_AUTO \|
	244	FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	245	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \| FE_CAN_FEC_AUTO \|
	246	FE_CAN_QPSK
	247	},
	248
	249	.release = dvb_dummy_fe_release,
	250
	251	.init = dvb_dummy_fe_init,
	252	.sleep = dvb_dummy_fe_sleep,
	253
d53b5102 MCC	254	.set_frontend = dvb_dummy_fe_set_frontend,
d53b5102 MCC	255	.get_frontend = dvb_dummy_fe_get_frontend,
1da177e4 LT	256
	257	.read_status = dvb_dummy_fe_read_status,
	258	.read_ber = dvb_dummy_fe_read_ber,
	259	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	260	.read_snr = dvb_dummy_fe_read_snr,
	261	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	262
	263	.set_voltage = dvb_dummy_fe_set_voltage,
	264	.set_tone = dvb_dummy_fe_set_tone,
	265	};
	266
	267	MODULE_DESCRIPTION("DVB DUMMY Frontend");
	268	MODULE_AUTHOR("Emard");
	269	MODULE_LICENSE("GPL");
	270
	271	EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
	272	EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
	273	EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);