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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> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/init.h> | |
25 | ||
26 | #include "dvb_frontend.h" | |
27 | #include "dvb_dummy_fe.h" | |
28 | ||
29 | ||
30 | struct dvb_dummy_fe_state { | |
31 | struct dvb_frontend_ops ops; | |
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 | { | |
78 | return 0; | |
79 | } | |
80 | ||
81 | static int dvb_dummy_fe_sleep(struct dvb_frontend* fe) | |
82 | { | |
83 | return 0; | |
84 | } | |
85 | ||
86 | static int dvb_dummy_fe_init(struct dvb_frontend* fe) | |
87 | { | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) | |
92 | { | |
93 | return 0; | |
94 | } | |
95 | ||
96 | static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage) | |
97 | { | |
98 | return 0; | |
99 | } | |
100 | ||
101 | static void dvb_dummy_fe_release(struct dvb_frontend* fe) | |
102 | { | |
103 | struct dvb_dummy_fe_state* state = (struct dvb_dummy_fe_state*) fe->demodulator_priv; | |
104 | kfree(state); | |
105 | } | |
106 | ||
107 | static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops; | |
108 | ||
109 | struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void) | |
110 | { | |
111 | struct dvb_dummy_fe_state* state = NULL; | |
112 | ||
113 | /* allocate memory for the internal state */ | |
114 | state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); | |
115 | if (state == NULL) goto error; | |
116 | ||
117 | /* setup the state */ | |
118 | memcpy(&state->ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops)); | |
119 | ||
120 | /* create dvb_frontend */ | |
121 | state->frontend.ops = &state->ops; | |
122 | state->frontend.demodulator_priv = state; | |
123 | return &state->frontend; | |
124 | ||
125 | error: | |
126 | kfree(state); | |
127 | return NULL; | |
128 | } | |
129 | ||
130 | static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops; | |
131 | ||
132 | struct dvb_frontend* dvb_dummy_fe_qpsk_attach() | |
133 | { | |
134 | struct dvb_dummy_fe_state* state = NULL; | |
135 | ||
136 | /* allocate memory for the internal state */ | |
137 | state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); | |
138 | if (state == NULL) goto error; | |
139 | ||
140 | /* setup the state */ | |
141 | memcpy(&state->ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops)); | |
142 | ||
143 | /* create dvb_frontend */ | |
144 | state->frontend.ops = &state->ops; | |
145 | state->frontend.demodulator_priv = state; | |
146 | return &state->frontend; | |
147 | ||
148 | error: | |
149 | if (state) kfree(state); | |
150 | return NULL; | |
151 | } | |
152 | ||
153 | static struct dvb_frontend_ops dvb_dummy_fe_qam_ops; | |
154 | ||
155 | struct dvb_frontend* dvb_dummy_fe_qam_attach() | |
156 | { | |
157 | struct dvb_dummy_fe_state* state = NULL; | |
158 | ||
159 | /* allocate memory for the internal state */ | |
160 | state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); | |
161 | if (state == NULL) goto error; | |
162 | ||
163 | /* setup the state */ | |
164 | memcpy(&state->ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops)); | |
165 | ||
166 | /* create dvb_frontend */ | |
167 | state->frontend.ops = &state->ops; | |
168 | state->frontend.demodulator_priv = state; | |
169 | return &state->frontend; | |
170 | ||
171 | error: | |
172 | if (state) kfree(state); | |
173 | return NULL; | |
174 | } | |
175 | ||
176 | static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = { | |
177 | ||
178 | .info = { | |
179 | .name = "Dummy DVB-T", | |
180 | .type = FE_OFDM, | |
181 | .frequency_min = 0, | |
182 | .frequency_max = 863250000, | |
183 | .frequency_stepsize = 62500, | |
184 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
185 | FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | | |
186 | FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO | | |
187 | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
188 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
189 | FE_CAN_GUARD_INTERVAL_AUTO | | |
190 | FE_CAN_HIERARCHY_AUTO, | |
191 | }, | |
192 | ||
193 | .release = dvb_dummy_fe_release, | |
194 | ||
195 | .init = dvb_dummy_fe_init, | |
196 | .sleep = dvb_dummy_fe_sleep, | |
197 | ||
198 | .set_frontend = dvb_dummy_fe_set_frontend, | |
199 | .get_frontend = dvb_dummy_fe_get_frontend, | |
200 | ||
201 | .read_status = dvb_dummy_fe_read_status, | |
202 | .read_ber = dvb_dummy_fe_read_ber, | |
203 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
204 | .read_snr = dvb_dummy_fe_read_snr, | |
205 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
206 | }; | |
207 | ||
208 | static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = { | |
209 | ||
210 | .info = { | |
211 | .name = "Dummy DVB-C", | |
212 | .type = FE_QAM, | |
213 | .frequency_stepsize = 62500, | |
214 | .frequency_min = 51000000, | |
215 | .frequency_max = 858000000, | |
216 | .symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */ | |
217 | .symbol_rate_max = (57840000/2)/4, /* SACLK/4 */ | |
218 | .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | | |
219 | FE_CAN_QAM_128 | FE_CAN_QAM_256 | | |
220 | FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO | |
221 | }, | |
222 | ||
223 | .release = dvb_dummy_fe_release, | |
224 | ||
225 | .init = dvb_dummy_fe_init, | |
226 | .sleep = dvb_dummy_fe_sleep, | |
227 | ||
228 | .set_frontend = dvb_dummy_fe_set_frontend, | |
229 | .get_frontend = dvb_dummy_fe_get_frontend, | |
230 | ||
231 | .read_status = dvb_dummy_fe_read_status, | |
232 | .read_ber = dvb_dummy_fe_read_ber, | |
233 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
234 | .read_snr = dvb_dummy_fe_read_snr, | |
235 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
236 | }; | |
237 | ||
238 | static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = { | |
239 | ||
240 | .info = { | |
241 | .name = "Dummy DVB-S", | |
242 | .type = FE_QPSK, | |
243 | .frequency_min = 950000, | |
244 | .frequency_max = 2150000, | |
245 | .frequency_stepsize = 250, /* kHz for QPSK frontends */ | |
246 | .frequency_tolerance = 29500, | |
247 | .symbol_rate_min = 1000000, | |
248 | .symbol_rate_max = 45000000, | |
249 | .caps = FE_CAN_INVERSION_AUTO | | |
250 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
251 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
252 | FE_CAN_QPSK | |
253 | }, | |
254 | ||
255 | .release = dvb_dummy_fe_release, | |
256 | ||
257 | .init = dvb_dummy_fe_init, | |
258 | .sleep = dvb_dummy_fe_sleep, | |
259 | ||
260 | .set_frontend = dvb_dummy_fe_set_frontend, | |
261 | .get_frontend = dvb_dummy_fe_get_frontend, | |
262 | ||
263 | .read_status = dvb_dummy_fe_read_status, | |
264 | .read_ber = dvb_dummy_fe_read_ber, | |
265 | .read_signal_strength = dvb_dummy_fe_read_signal_strength, | |
266 | .read_snr = dvb_dummy_fe_read_snr, | |
267 | .read_ucblocks = dvb_dummy_fe_read_ucblocks, | |
268 | ||
269 | .set_voltage = dvb_dummy_fe_set_voltage, | |
270 | .set_tone = dvb_dummy_fe_set_tone, | |
271 | }; | |
272 | ||
273 | MODULE_DESCRIPTION("DVB DUMMY Frontend"); | |
274 | MODULE_AUTHOR("Emard"); | |
275 | MODULE_LICENSE("GPL"); | |
276 | ||
277 | EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach); | |
278 | EXPORT_SYMBOL(dvb_dummy_fe_qam_attach); | |
279 | EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach); |