[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, 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;
}

static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
	return 0;
}

static int dvb_dummy_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
{
	if (fe->ops->tuner_ops->set_params) {
		fe->ops->tuner_ops->set_params(fe, p);
		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 = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (state == NULL) goto error;

	/* 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;

error:
	kfree(state);
	return NULL;
}

static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;

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

	/* allocate memory for the internal state */
	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (state == NULL) goto error;

	/* 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;

error:
	kfree(state);
	return NULL;
}

static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;

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

	/* allocate memory for the internal state */
	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
	if (state == NULL) goto error;

	/* 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;

error:
	kfree(state);
	return NULL;
}

static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {

	.info = {
		.name			= "Dummy DVB-T",
		.type			= FE_OFDM,
		.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 = {

	.info = {
		.name			= "Dummy DVB-C",
		.type			= FE_QAM,
		.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 = {

	.info = {
		.name			= "Dummy DVB-S",
		.type			= FE_QPSK,
		.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
	71	static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
	72	{
	73	return 0;
	74	}
	75
	76	static int dvb_dummy_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
	77	{
089e9809 AQ	78	if (fe->ops->tuner_ops->set_params) {
	79	fe->ops->tuner_ops->set_params(fe, p);
	80	if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
	81	}
	82
1da177e4 LT	83	return 0;
	84	}
	85
	86	static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
	87	{
	88	return 0;
	89	}
	90
	91	static int dvb_dummy_fe_init(struct dvb_frontend* fe)
	92	{
	93	return 0;
	94	}
	95
	96	static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
	97	{
	98	return 0;
	99	}
	100
	101	static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
	102	{
	103	return 0;
	104	}
	105
	106	static void dvb_dummy_fe_release(struct dvb_frontend* fe)
	107	{
b8742700	108	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
1da177e4 LT	109	kfree(state);
	110	}
	111
	112	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
	113
	114	struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
	115	{
	116	struct dvb_dummy_fe_state* state = NULL;
	117
	118	/* allocate memory for the internal state */
b8742700	119	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
1da177e4 LT	120	if (state == NULL) goto error;
1da177e4 LT	121
1da177e4	122	/* create dvb_frontend */
dea74869	123	memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	124	state->frontend.demodulator_priv = state;
	125	return &state->frontend;
	126
	127	error:
	128	kfree(state);
	129	return NULL;
	130	}
	131
	132	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
	133
	134	struct dvb_frontend* dvb_dummy_fe_qpsk_attach()
	135	{
	136	struct dvb_dummy_fe_state* state = NULL;
	137
	138	/* allocate memory for the internal state */
b8742700	139	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
1da177e4 LT	140	if (state == NULL) goto error;
1da177e4 LT	141
1da177e4	142	/* create dvb_frontend */
dea74869	143	memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	144	state->frontend.demodulator_priv = state;
	145	return &state->frontend;
	146
	147	error:
2ea75330	148	kfree(state);
1da177e4 LT	149	return NULL;
	150	}
	151
	152	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
	153
	154	struct dvb_frontend* dvb_dummy_fe_qam_attach()
	155	{
	156	struct dvb_dummy_fe_state* state = NULL;
	157
	158	/* allocate memory for the internal state */
b8742700	159	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
1da177e4 LT	160	if (state == NULL) goto error;
1da177e4 LT	161
1da177e4	162	/* create dvb_frontend */
dea74869	163	memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	164	state->frontend.demodulator_priv = state;
	165	return &state->frontend;
	166
	167	error:
2ea75330	168	kfree(state);
1da177e4 LT	169	return NULL;
	170	}
	171
	172	static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
	173
	174	.info = {
	175	.name = "Dummy DVB-T",
	176	.type = FE_OFDM,
	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
	194	.set_frontend = dvb_dummy_fe_set_frontend,
	195	.get_frontend = dvb_dummy_fe_get_frontend,
	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
	204	static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
	205
	206	.info = {
	207	.name = "Dummy DVB-C",
	208	.type = FE_QAM,
	209	.frequency_stepsize = 62500,
	210	.frequency_min = 51000000,
	211	.frequency_max = 858000000,
	212	.symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
	213	.symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
	214	.caps = FE_CAN_QAM_16 \| FE_CAN_QAM_32 \| FE_CAN_QAM_64 \|
	215	FE_CAN_QAM_128 \| FE_CAN_QAM_256 \|
	216	FE_CAN_FEC_AUTO \| FE_CAN_INVERSION_AUTO
	217	},
	218
	219	.release = dvb_dummy_fe_release,
	220
	221	.init = dvb_dummy_fe_init,
	222	.sleep = dvb_dummy_fe_sleep,
	223
	224	.set_frontend = dvb_dummy_fe_set_frontend,
	225	.get_frontend = dvb_dummy_fe_get_frontend,
	226
	227	.read_status = dvb_dummy_fe_read_status,
	228	.read_ber = dvb_dummy_fe_read_ber,
	229	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
	230	.read_snr = dvb_dummy_fe_read_snr,
	231	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
	232	};
233
234	static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
235
236	.info = {
237	.name = "Dummy DVB-S",
238	.type = FE_QPSK,
239	.frequency_min = 950000,
240	.frequency_max = 2150000,
241	.frequency_stepsize = 250, /* kHz for QPSK frontends */
242	.frequency_tolerance = 29500,
243	.symbol_rate_min = 1000000,
244	.symbol_rate_max = 45000000,
245	.caps = FE_CAN_INVERSION_AUTO \|
246	FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
247	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \| FE_CAN_FEC_AUTO \|
248	FE_CAN_QPSK
249	},
250
251	.release = dvb_dummy_fe_release,
252
253	.init = dvb_dummy_fe_init,
254	.sleep = dvb_dummy_fe_sleep,
255
256	.set_frontend = dvb_dummy_fe_set_frontend,
257	.get_frontend = dvb_dummy_fe_get_frontend,
258
259	.read_status = dvb_dummy_fe_read_status,
260	.read_ber = dvb_dummy_fe_read_ber,
261	.read_signal_strength = dvb_dummy_fe_read_signal_strength,
262	.read_snr = dvb_dummy_fe_read_snr,
263	.read_ucblocks = dvb_dummy_fe_read_ucblocks,
264
265	.set_voltage = dvb_dummy_fe_set_voltage,
266	.set_tone = dvb_dummy_fe_set_tone,
267	};
268
269	MODULE_DESCRIPTION("DVB DUMMY Frontend");
270	MODULE_AUTHOR("Emard");
271	MODULE_LICENSE("GPL");
272
273	EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
274	EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
275	EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);