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Commit | Line | Data |
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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> |
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, |
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, |
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) |
88 | fe->ops.i2c_gate_ctrl(fe, 0); | |
089e9809 AQ |
89 | } |
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, |
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, |
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 | ||
122 | static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops; | |
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) |
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; |
136 | return &state->frontend; | |
1da177e4 LT |
137 | } |
138 | ||
139 | static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops; | |
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) |
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; |
153 | return &state->frontend; | |
1da177e4 LT |
154 | } |
155 | ||
156 | static struct dvb_frontend_ops dvb_dummy_fe_qam_ops; | |
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) |
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; |
170 | return &state->frontend; | |
1da177e4 LT |
171 | } |
172 | ||
173 | static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = { | |
d53b5102 | 174 | .delsys = { SYS_DVBT }, |
1da177e4 LT |
175 | .info = { |
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, |
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 | ||
204 | static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = { | |
d53b5102 | 205 | .delsys = { SYS_DVBC_ANNEX_A }, |
1da177e4 LT |
206 | .info = { |
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, |
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 | ||
233 | static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = { | |
d53b5102 | 234 | .delsys = { SYS_DVBS }, |
1da177e4 LT |
235 | .info = { |
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, |
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); |