Release 4.7 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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| alan cox | alan cox | 23 | 71.88% | 1 | 25.00% | 
| michael hunold | michael hunold | 7 | 21.88% | 2 | 50.00% | 
| mauro carvalho chehab | mauro carvalho chehab | 2 | 6.25% | 1 | 25.00% | 
 | Total | 32 | 100.00% | 4 | 100.00% | 
static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
{
	*ber = 0;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 14 | 60.87% | 1 | 50.00% | 
| alan cox | alan cox | 9 | 39.13% | 1 | 50.00% | 
 | Total | 23 | 100.00% | 2 | 100.00% | 
static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
	*strength = 0;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 18 | 78.26% | 1 | 50.00% | 
| alan cox | alan cox | 5 | 21.74% | 1 | 50.00% | 
 | Total | 23 | 100.00% | 2 | 100.00% | 
static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
{
	*snr = 0;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 18 | 78.26% | 1 | 50.00% | 
| alan cox | alan cox | 5 | 21.74% | 1 | 50.00% | 
 | Total | 23 | 100.00% | 2 | 100.00% | 
static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
	*ucblocks = 0;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 15 | 65.22% | 1 | 50.00% | 
| alan cox | alan cox | 8 | 34.78% | 1 | 50.00% | 
 | Total | 23 | 100.00% | 2 | 100.00% | 
/*
 * 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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 11 | 57.89% | 1 | 33.33% | 
| mauro carvalho chehab | mauro carvalho chehab | 5 | 26.32% | 1 | 33.33% | 
| alan cox | alan cox | 3 | 15.79% | 1 | 33.33% | 
 | Total | 19 | 100.00% | 3 | 100.00% | 
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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| andrew de quincey | andrew de quincey | 36 | 64.29% | 1 | 25.00% | 
| michael hunold | michael hunold | 12 | 21.43% | 1 | 25.00% | 
| patrick boettcher | patrick boettcher | 6 | 10.71% | 1 | 25.00% | 
| alan cox | alan cox | 2 | 3.57% | 1 | 25.00% | 
 | Total | 56 | 100.00% | 4 | 100.00% | 
static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
{
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 14 | 100.00% | 1 | 100.00% | 
 | Total | 14 | 100.00% | 1 | 100.00% | 
static int dvb_dummy_fe_init(struct dvb_frontend* fe)
{
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 11 | 78.57% | 1 | 50.00% | 
| alan cox | alan cox | 3 | 21.43% | 1 | 50.00% | 
 | Total | 14 | 100.00% | 2 | 100.00% | 
static int dvb_dummy_fe_set_tone(struct dvb_frontend *fe,
				 enum fe_sec_tone_mode tone)
{
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 13 | 72.22% | 1 | 33.33% | 
| alan cox | alan cox | 3 | 16.67% | 1 | 33.33% | 
| mauro carvalho chehab | mauro carvalho chehab | 2 | 11.11% | 1 | 33.33% | 
 | Total | 18 | 100.00% | 3 | 100.00% | 
static int dvb_dummy_fe_set_voltage(struct dvb_frontend *fe,
				    enum fe_sec_voltage voltage)
{
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 12 | 66.67% | 1 | 33.33% | 
| alan cox | alan cox | 4 | 22.22% | 1 | 33.33% | 
| mauro carvalho chehab | mauro carvalho chehab | 2 | 11.11% | 1 | 33.33% | 
 | Total | 18 | 100.00% | 3 | 100.00% | 
static void dvb_dummy_fe_release(struct dvb_frontend* fe)
{
	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
	kfree(state);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 25 | 100.00% | 1 | 100.00% | 
 | Total | 25 | 100.00% | 1 | 100.00% | 
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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 62 | 86.11% | 3 | 42.86% | 
| peter senna tschudin | peter senna tschudin | 4 | 5.56% | 1 | 14.29% | 
| patrick boettcher | patrick boettcher | 3 | 4.17% | 1 | 14.29% | 
| alan cox | alan cox | 2 | 2.78% | 1 | 14.29% | 
| matthias schwarzott | matthias schwarzott | 1 | 1.39% | 1 | 14.29% | 
 | Total | 72 | 100.00% | 7 | 100.00% | 
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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 59 | 81.94% | 2 | 28.57% | 
| peter senna tschudin | peter senna tschudin | 4 | 5.56% | 1 | 14.29% | 
| hans verkuil | hans verkuil | 3 | 4.17% | 1 | 14.29% | 
| patrick boettcher | patrick boettcher | 3 | 4.17% | 1 | 14.29% | 
| alan cox | alan cox | 2 | 2.78% | 1 | 14.29% | 
| matthias schwarzott | matthias schwarzott | 1 | 1.39% | 1 | 14.29% | 
 | Total | 72 | 100.00% | 7 | 100.00% | 
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;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 61 | 84.72% | 2 | 33.33% | 
| peter senna tschudin | peter senna tschudin | 4 | 5.56% | 1 | 16.67% | 
| hans verkuil | hans verkuil | 3 | 4.17% | 1 | 16.67% | 
| patrick boettcher | patrick boettcher | 3 | 4.17% | 1 | 16.67% | 
| matthias schwarzott | matthias schwarzott | 1 | 1.39% | 1 | 16.67% | 
 | Total | 72 | 100.00% | 6 | 100.00% | 
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);
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| michael hunold | michael hunold | 744 | 77.18% | 4 | 25.00% | 
| alan cox | alan cox | 102 | 10.58% | 1 | 6.25% | 
| mauro carvalho chehab | mauro carvalho chehab | 39 | 4.05% | 3 | 18.75% | 
| andrew de quincey | andrew de quincey | 36 | 3.73% | 1 | 6.25% | 
| patrick boettcher | patrick boettcher | 15 | 1.56% | 2 | 12.50% | 
| peter senna tschudin | peter senna tschudin | 12 | 1.24% | 1 | 6.25% | 
| tim schmielau | tim schmielau | 6 | 0.62% | 1 | 6.25% | 
| hans verkuil | hans verkuil | 6 | 0.62% | 1 | 6.25% | 
| matthias schwarzott | matthias schwarzott | 3 | 0.31% | 1 | 6.25% | 
| johannes stezenbach | johannes stezenbach | 1 | 0.10% | 1 | 6.25% | 
 | Total | 964 | 100.00% | 16 | 100.00% | 
  
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