2 * Driver for Dummy Frontend
4 * Written by Emard <emard@softhome.net>
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.
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
15 * GNU General Public License for more details.
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.=
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/init.h>
25 #include <linux/string.h>
26 #include <linux/slab.h>
28 #include "dvb_frontend.h"
29 #include "dvb_dummy_fe.h"
32 struct dvb_dummy_fe_state {
33 struct dvb_frontend_ops ops;
34 struct dvb_frontend frontend;
38 static int dvb_dummy_fe_read_status(struct dvb_frontend* fe, fe_status_t* status)
40 *status = FE_HAS_SIGNAL
49 static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
55 static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
61 static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
67 static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
73 static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
78 static int dvb_dummy_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
80 if (fe->ops->tuner_ops->set_params) {
81 fe->ops->tuner_ops->set_params(fe, p);
82 if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
88 static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
93 static int dvb_dummy_fe_init(struct dvb_frontend* fe)
98 static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
103 static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
108 static void dvb_dummy_fe_release(struct dvb_frontend* fe)
110 struct dvb_dummy_fe_state* state = fe->demodulator_priv;
114 static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
116 struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
118 struct dvb_dummy_fe_state* state = NULL;
120 /* allocate memory for the internal state */
121 state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
122 if (state == NULL) goto error;
124 /* setup the state */
125 memcpy(&state->ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
127 /* create dvb_frontend */
128 state->frontend.ops = &state->ops;
129 state->frontend.demodulator_priv = state;
130 return &state->frontend;
137 static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
139 struct dvb_frontend* dvb_dummy_fe_qpsk_attach()
141 struct dvb_dummy_fe_state* state = NULL;
143 /* allocate memory for the internal state */
144 state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
145 if (state == NULL) goto error;
147 /* setup the state */
148 memcpy(&state->ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
150 /* create dvb_frontend */
151 state->frontend.ops = &state->ops;
152 state->frontend.demodulator_priv = state;
153 return &state->frontend;
160 static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
162 struct dvb_frontend* dvb_dummy_fe_qam_attach()
164 struct dvb_dummy_fe_state* state = NULL;
166 /* allocate memory for the internal state */
167 state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
168 if (state == NULL) goto error;
170 /* setup the state */
171 memcpy(&state->ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
173 /* create dvb_frontend */
174 state->frontend.ops = &state->ops;
175 state->frontend.demodulator_priv = state;
176 return &state->frontend;
183 static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
186 .name = "Dummy DVB-T",
189 .frequency_max = 863250000,
190 .frequency_stepsize = 62500,
191 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
192 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
193 FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
194 FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
195 FE_CAN_TRANSMISSION_MODE_AUTO |
196 FE_CAN_GUARD_INTERVAL_AUTO |
197 FE_CAN_HIERARCHY_AUTO,
200 .release = dvb_dummy_fe_release,
202 .init = dvb_dummy_fe_init,
203 .sleep = dvb_dummy_fe_sleep,
205 .set_frontend = dvb_dummy_fe_set_frontend,
206 .get_frontend = dvb_dummy_fe_get_frontend,
208 .read_status = dvb_dummy_fe_read_status,
209 .read_ber = dvb_dummy_fe_read_ber,
210 .read_signal_strength = dvb_dummy_fe_read_signal_strength,
211 .read_snr = dvb_dummy_fe_read_snr,
212 .read_ucblocks = dvb_dummy_fe_read_ucblocks,
215 static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
218 .name = "Dummy DVB-C",
220 .frequency_stepsize = 62500,
221 .frequency_min = 51000000,
222 .frequency_max = 858000000,
223 .symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
224 .symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
225 .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
226 FE_CAN_QAM_128 | FE_CAN_QAM_256 |
227 FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO
230 .release = dvb_dummy_fe_release,
232 .init = dvb_dummy_fe_init,
233 .sleep = dvb_dummy_fe_sleep,
235 .set_frontend = dvb_dummy_fe_set_frontend,
236 .get_frontend = dvb_dummy_fe_get_frontend,
238 .read_status = dvb_dummy_fe_read_status,
239 .read_ber = dvb_dummy_fe_read_ber,
240 .read_signal_strength = dvb_dummy_fe_read_signal_strength,
241 .read_snr = dvb_dummy_fe_read_snr,
242 .read_ucblocks = dvb_dummy_fe_read_ucblocks,
245 static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
248 .name = "Dummy DVB-S",
250 .frequency_min = 950000,
251 .frequency_max = 2150000,
252 .frequency_stepsize = 250, /* kHz for QPSK frontends */
253 .frequency_tolerance = 29500,
254 .symbol_rate_min = 1000000,
255 .symbol_rate_max = 45000000,
256 .caps = FE_CAN_INVERSION_AUTO |
257 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
258 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
262 .release = dvb_dummy_fe_release,
264 .init = dvb_dummy_fe_init,
265 .sleep = dvb_dummy_fe_sleep,
267 .set_frontend = dvb_dummy_fe_set_frontend,
268 .get_frontend = dvb_dummy_fe_get_frontend,
270 .read_status = dvb_dummy_fe_read_status,
271 .read_ber = dvb_dummy_fe_read_ber,
272 .read_signal_strength = dvb_dummy_fe_read_signal_strength,
273 .read_snr = dvb_dummy_fe_read_snr,
274 .read_ucblocks = dvb_dummy_fe_read_ucblocks,
276 .set_voltage = dvb_dummy_fe_set_voltage,
277 .set_tone = dvb_dummy_fe_set_tone,
280 MODULE_DESCRIPTION("DVB DUMMY Frontend");
281 MODULE_AUTHOR("Emard");
282 MODULE_LICENSE("GPL");
284 EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
285 EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
286 EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);