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. | |
1da177e4 LT |
16 | */ |
17 | ||
18 | #include <linux/module.h> | |
1da177e4 | 19 | #include <linux/init.h> |
4e57b681 TS |
20 | #include <linux/string.h> |
21 | #include <linux/slab.h> | |
1da177e4 | 22 | |
fada1935 | 23 | #include <media/dvb_frontend.h> |
1da177e4 LT |
24 | #include "dvb_dummy_fe.h" |
25 | ||
26 | ||
27 | struct dvb_dummy_fe_state { | |
1da177e4 LT |
28 | struct dvb_frontend frontend; |
29 | }; | |
30 | ||
31 | ||
0df289a2 MCC |
32 | static int dvb_dummy_fe_read_status(struct dvb_frontend *fe, |
33 | enum fe_status *status) | |
1da177e4 LT |
34 | { |
35 | *status = FE_HAS_SIGNAL | |
36 | | FE_HAS_CARRIER | |
37 | | FE_HAS_VITERBI | |
38 | | FE_HAS_SYNC | |
39 | | FE_HAS_LOCK; | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber) | |
45 | { | |
46 | *ber = 0; | |
47 | return 0; | |
48 | } | |
49 | ||
50 | static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
51 | { | |
52 | *strength = 0; | |
53 | return 0; | |
54 | } | |
55 | ||
56 | static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr) | |
57 | { | |
58 | *snr = 0; | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
63 | { | |
64 | *ucblocks = 0; | |
65 | return 0; | |
66 | } | |
67 | ||
7c61d80a | 68 | /* |
7e3e68bc MCC |
69 | * Should only be implemented if it actually reads something from the hardware. |
70 | * Also, it should check for the locks, in order to avoid report wrong data | |
71 | * to userspace. | |
7c61d80a | 72 | */ |
7e3e68bc MCC |
73 | static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe, |
74 | struct dtv_frontend_properties *p) | |
1da177e4 LT |
75 | { |
76 | return 0; | |
77 | } | |
78 | ||
d53b5102 | 79 | static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe) |
1da177e4 | 80 | { |
bccd7003 | 81 | if (fe->ops.tuner_ops.set_params) { |
14d24d14 | 82 | fe->ops.tuner_ops.set_params(fe); |
bccd7003 PB |
83 | if (fe->ops.i2c_gate_ctrl) |
84 | fe->ops.i2c_gate_ctrl(fe, 0); | |
089e9809 AQ |
85 | } |
86 | ||
1da177e4 LT |
87 | return 0; |
88 | } | |
89 | ||
90 | static int dvb_dummy_fe_sleep(struct dvb_frontend* fe) | |
91 | { | |
92 | return 0; | |
93 | } | |
94 | ||
95 | static int dvb_dummy_fe_init(struct dvb_frontend* fe) | |
96 | { | |
97 | return 0; | |
98 | } | |
99 | ||
0df289a2 MCC |
100 | static int dvb_dummy_fe_set_tone(struct dvb_frontend *fe, |
101 | enum fe_sec_tone_mode tone) | |
1da177e4 LT |
102 | { |
103 | return 0; | |
104 | } | |
105 | ||
0df289a2 MCC |
106 | static int dvb_dummy_fe_set_voltage(struct dvb_frontend *fe, |
107 | enum fe_sec_voltage voltage) | |
1da177e4 LT |
108 | { |
109 | return 0; | |
110 | } | |
111 | ||
112 | static void dvb_dummy_fe_release(struct dvb_frontend* fe) | |
113 | { | |
b8742700 | 114 | struct dvb_dummy_fe_state* state = fe->demodulator_priv; |
1da177e4 LT |
115 | kfree(state); |
116 | } | |
117 | ||
bd336e63 | 118 | static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops; |
1da177e4 LT |
119 | |
120 | struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void) | |
121 | { | |
122 | struct dvb_dummy_fe_state* state = NULL; | |
123 | ||
124 | /* allocate memory for the internal state */ | |
084e24ac | 125 | state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); |
3f037426 PST |
126 | if (!state) |
127 | return NULL; | |
1da177e4 | 128 | |
1da177e4 | 129 | /* create dvb_frontend */ |
dea74869 | 130 | memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops)); |
1da177e4 LT |
131 | state->frontend.demodulator_priv = state; |
132 | return &state->frontend; | |
1da177e4 LT |
133 | } |
134 | ||
bd336e63 | 135 | static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops; |
1da177e4 | 136 | |
d45b9b8a | 137 | struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void) |
1da177e4 LT |
138 | { |
139 | struct dvb_dummy_fe_state* state = NULL; | |
140 | ||
141 | /* allocate memory for the internal state */ | |
084e24ac | 142 | state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); |
3f037426 PST |
143 | if (!state) |
144 | return NULL; | |
1da177e4 | 145 | |
1da177e4 | 146 | /* create dvb_frontend */ |
dea74869 | 147 | memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops)); |
1da177e4 LT |
148 | state->frontend.demodulator_priv = state; |
149 | return &state->frontend; | |
1da177e4 LT |
150 | } |
151 | ||
bd336e63 | 152 | static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops; |
1da177e4 | 153 | |
d45b9b8a | 154 | struct dvb_frontend *dvb_dummy_fe_qam_attach(void) |
1da177e4 LT |
155 | { |
156 | struct dvb_dummy_fe_state* state = NULL; | |
157 | ||
158 | /* allocate memory for the internal state */ | |
084e24ac | 159 | state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); |
3f037426 PST |
160 | if (!state) |
161 | return NULL; | |
1da177e4 | 162 | |
1da177e4 | 163 | /* create dvb_frontend */ |
dea74869 | 164 | memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops)); |
1da177e4 LT |
165 | state->frontend.demodulator_priv = state; |
166 | return &state->frontend; | |
1da177e4 LT |
167 | } |
168 | ||
bd336e63 | 169 | static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = { |
d53b5102 | 170 | .delsys = { SYS_DVBT }, |
1da177e4 LT |
171 | .info = { |
172 | .name = "Dummy DVB-T", | |
1da177e4 LT |
173 | .frequency_min = 0, |
174 | .frequency_max = 863250000, | |
175 | .frequency_stepsize = 62500, | |
176 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
177 | FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | | |
178 | FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO | | |
179 | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
180 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
181 | FE_CAN_GUARD_INTERVAL_AUTO | | |
182 | FE_CAN_HIERARCHY_AUTO, | |
183 | }, | |
184 | ||
185 | .release = dvb_dummy_fe_release, | |
186 | ||
187 | .init = dvb_dummy_fe_init, | |
188 | .sleep = dvb_dummy_fe_sleep, | |
189 | ||
d53b5102 MCC |
190 | .set_frontend = dvb_dummy_fe_set_frontend, |
191 | .get_frontend = dvb_dummy_fe_get_frontend, | |
1da177e4 LT |
192 | |
193 | .read_status = dvb_dummy_fe_read_status, | |
194 | .read_ber = dvb_dummy_fe_read_ber, | |
195 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
196 | .read_snr = dvb_dummy_fe_read_snr, | |
197 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
198 | }; | |
199 | ||
bd336e63 | 200 | static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops = { |
d53b5102 | 201 | .delsys = { SYS_DVBC_ANNEX_A }, |
1da177e4 LT |
202 | .info = { |
203 | .name = "Dummy DVB-C", | |
1da177e4 LT |
204 | .frequency_stepsize = 62500, |
205 | .frequency_min = 51000000, | |
206 | .frequency_max = 858000000, | |
207 | .symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */ | |
208 | .symbol_rate_max = (57840000/2)/4, /* SACLK/4 */ | |
209 | .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | | |
210 | FE_CAN_QAM_128 | FE_CAN_QAM_256 | | |
211 | FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO | |
212 | }, | |
213 | ||
214 | .release = dvb_dummy_fe_release, | |
215 | ||
216 | .init = dvb_dummy_fe_init, | |
217 | .sleep = dvb_dummy_fe_sleep, | |
218 | ||
d53b5102 MCC |
219 | .set_frontend = dvb_dummy_fe_set_frontend, |
220 | .get_frontend = dvb_dummy_fe_get_frontend, | |
1da177e4 LT |
221 | |
222 | .read_status = dvb_dummy_fe_read_status, | |
223 | .read_ber = dvb_dummy_fe_read_ber, | |
224 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
225 | .read_snr = dvb_dummy_fe_read_snr, | |
226 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
227 | }; | |
228 | ||
bd336e63 | 229 | static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = { |
d53b5102 | 230 | .delsys = { SYS_DVBS }, |
1da177e4 LT |
231 | .info = { |
232 | .name = "Dummy DVB-S", | |
1da177e4 LT |
233 | .frequency_min = 950000, |
234 | .frequency_max = 2150000, | |
235 | .frequency_stepsize = 250, /* kHz for QPSK frontends */ | |
236 | .frequency_tolerance = 29500, | |
237 | .symbol_rate_min = 1000000, | |
238 | .symbol_rate_max = 45000000, | |
239 | .caps = FE_CAN_INVERSION_AUTO | | |
240 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
241 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
242 | FE_CAN_QPSK | |
243 | }, | |
244 | ||
245 | .release = dvb_dummy_fe_release, | |
246 | ||
247 | .init = dvb_dummy_fe_init, | |
248 | .sleep = dvb_dummy_fe_sleep, | |
249 | ||
d53b5102 MCC |
250 | .set_frontend = dvb_dummy_fe_set_frontend, |
251 | .get_frontend = dvb_dummy_fe_get_frontend, | |
1da177e4 LT |
252 | |
253 | .read_status = dvb_dummy_fe_read_status, | |
254 | .read_ber = dvb_dummy_fe_read_ber, | |
255 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
256 | .read_snr = dvb_dummy_fe_read_snr, | |
257 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
258 | ||
259 | .set_voltage = dvb_dummy_fe_set_voltage, | |
260 | .set_tone = dvb_dummy_fe_set_tone, | |
261 | }; | |
262 | ||
263 | MODULE_DESCRIPTION("DVB DUMMY Frontend"); | |
264 | MODULE_AUTHOR("Emard"); | |
265 | MODULE_LICENSE("GPL"); | |
266 | ||
267 | EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach); | |
268 | EXPORT_SYMBOL(dvb_dummy_fe_qam_attach); | |
269 | EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach); |