Merge rsync://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / drivers / media / dvb / frontends / dvb_dummy_fe.c
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 #include <linux/string.h>
26 #include <linux/slab.h>
27
28 #include "dvb_frontend.h"
29 #include "dvb_dummy_fe.h"
30
31
32 struct dvb_dummy_fe_state {
33         struct dvb_frontend frontend;
34 };
35
36
37 static int dvb_dummy_fe_read_status(struct dvb_frontend* fe, fe_status_t* status)
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
72 static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
73 {
74         return 0;
75 }
76
77 static int dvb_dummy_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
78 {
79         if (fe->ops->tuner_ops->set_params) {
80                 fe->ops->tuner_ops->set_params(fe, p);
81                 if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
82         }
83
84         return 0;
85 }
86
87 static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
88 {
89         return 0;
90 }
91
92 static int dvb_dummy_fe_init(struct dvb_frontend* fe)
93 {
94         return 0;
95 }
96
97 static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
98 {
99         return 0;
100 }
101
102 static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
103 {
104         return 0;
105 }
106
107 static void dvb_dummy_fe_release(struct dvb_frontend* fe)
108 {
109         struct dvb_dummy_fe_state* state = fe->demodulator_priv;
110         kfree(state);
111 }
112
113 static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
114
115 struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
116 {
117         struct dvb_dummy_fe_state* state = NULL;
118
119         /* allocate memory for the internal state */
120         state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
121         if (state == NULL) goto error;
122
123         /* create dvb_frontend */
124         memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
125         state->frontend.demodulator_priv = state;
126         return &state->frontend;
127
128 error:
129         kfree(state);
130         return NULL;
131 }
132
133 static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
134
135 struct dvb_frontend* dvb_dummy_fe_qpsk_attach()
136 {
137         struct dvb_dummy_fe_state* state = NULL;
138
139         /* allocate memory for the internal state */
140         state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
141         if (state == NULL) goto error;
142
143         /* create dvb_frontend */
144         memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
145         state->frontend.demodulator_priv = state;
146         return &state->frontend;
147
148 error:
149         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 = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
161         if (state == NULL) goto error;
162
163         /* create dvb_frontend */
164         memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
165         state->frontend.demodulator_priv = state;
166         return &state->frontend;
167
168 error:
169         kfree(state);
170         return NULL;
171 }
172
173 static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
174
175         .info = {
176                 .name                   = "Dummy DVB-T",
177                 .type                   = FE_OFDM,
178                 .frequency_min          = 0,
179                 .frequency_max          = 863250000,
180                 .frequency_stepsize     = 62500,
181                 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
182                                 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
183                                 FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
184                                 FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
185                                 FE_CAN_TRANSMISSION_MODE_AUTO |
186                                 FE_CAN_GUARD_INTERVAL_AUTO |
187                                 FE_CAN_HIERARCHY_AUTO,
188         },
189
190         .release = dvb_dummy_fe_release,
191
192         .init = dvb_dummy_fe_init,
193         .sleep = dvb_dummy_fe_sleep,
194
195         .set_frontend = dvb_dummy_fe_set_frontend,
196         .get_frontend = dvb_dummy_fe_get_frontend,
197
198         .read_status = dvb_dummy_fe_read_status,
199         .read_ber = dvb_dummy_fe_read_ber,
200         .read_signal_strength = dvb_dummy_fe_read_signal_strength,
201         .read_snr = dvb_dummy_fe_read_snr,
202         .read_ucblocks = dvb_dummy_fe_read_ucblocks,
203 };
204
205 static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
206
207         .info = {
208                 .name                   = "Dummy DVB-C",
209                 .type                   = FE_QAM,
210                 .frequency_stepsize     = 62500,
211                 .frequency_min          = 51000000,
212                 .frequency_max          = 858000000,
213                 .symbol_rate_min        = (57840000/2)/64,     /* SACLK/64 == (XIN/2)/64 */
214                 .symbol_rate_max        = (57840000/2)/4,      /* SACLK/4 */
215                 .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
216                         FE_CAN_QAM_128 | FE_CAN_QAM_256 |
217                         FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO
218         },
219
220         .release = dvb_dummy_fe_release,
221
222         .init = dvb_dummy_fe_init,
223         .sleep = dvb_dummy_fe_sleep,
224
225         .set_frontend = dvb_dummy_fe_set_frontend,
226         .get_frontend = dvb_dummy_fe_get_frontend,
227
228         .read_status = dvb_dummy_fe_read_status,
229         .read_ber = dvb_dummy_fe_read_ber,
230         .read_signal_strength = dvb_dummy_fe_read_signal_strength,
231         .read_snr = dvb_dummy_fe_read_snr,
232         .read_ucblocks = dvb_dummy_fe_read_ucblocks,
233 };
234
235 static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
236
237         .info = {
238                 .name                   = "Dummy DVB-S",
239                 .type                   = FE_QPSK,
240                 .frequency_min          = 950000,
241                 .frequency_max          = 2150000,
242                 .frequency_stepsize     = 250,           /* kHz for QPSK frontends */
243                 .frequency_tolerance    = 29500,
244                 .symbol_rate_min        = 1000000,
245                 .symbol_rate_max        = 45000000,
246                 .caps = FE_CAN_INVERSION_AUTO |
247                         FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
248                         FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
249                         FE_CAN_QPSK
250         },
251
252         .release = dvb_dummy_fe_release,
253
254         .init = dvb_dummy_fe_init,
255         .sleep = dvb_dummy_fe_sleep,
256
257         .set_frontend = dvb_dummy_fe_set_frontend,
258         .get_frontend = dvb_dummy_fe_get_frontend,
259
260         .read_status = dvb_dummy_fe_read_status,
261         .read_ber = dvb_dummy_fe_read_ber,
262         .read_signal_strength = dvb_dummy_fe_read_signal_strength,
263         .read_snr = dvb_dummy_fe_read_snr,
264         .read_ucblocks = dvb_dummy_fe_read_ucblocks,
265
266         .set_voltage = dvb_dummy_fe_set_voltage,
267         .set_tone = dvb_dummy_fe_set_tone,
268 };
269
270 MODULE_DESCRIPTION("DVB DUMMY Frontend");
271 MODULE_AUTHOR("Emard");
272 MODULE_LICENSE("GPL");
273
274 EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
275 EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
276 EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);