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1da177e4 LT |
1 | /* |
2 | * TTUSB DEC Frontend Driver | |
3 | * | |
4 | * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org> | |
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 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | * | |
20 | */ | |
21 | ||
22 | #include "dvb_frontend.h" | |
23 | #include "ttusbdecfe.h" | |
24 | ||
25 | ||
26 | #define LOF_HI 10600000 | |
27 | #define LOF_LO 9750000 | |
28 | ||
29 | struct ttusbdecfe_state { | |
30 | ||
1da177e4 LT |
31 | /* configuration settings */ |
32 | const struct ttusbdecfe_config* config; | |
33 | ||
34 | struct dvb_frontend frontend; | |
35 | ||
36 | u8 hi_band; | |
37 | u8 voltage; | |
38 | }; | |
39 | ||
40 | ||
41 | static int ttusbdecfe_read_status(struct dvb_frontend* fe, fe_status_t* status) | |
42 | { | |
f961e71a AW |
43 | struct ttusbdecfe_state* state = fe->demodulator_priv; |
44 | u8 b[] = { 0x00, 0x00, 0x00, 0x00, | |
45 | 0x00, 0x00, 0x00, 0x00 }; | |
46 | u8 result[4]; | |
47 | int len, ret; | |
48 | ||
49 | *status=0; | |
50 | ||
51 | ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result); | |
52 | if(ret) | |
53 | return ret; | |
54 | ||
55 | if(len != 4) { | |
e9815cee | 56 | printk(KERN_ERR "%s: unexpected reply\n", __func__); |
f961e71a AW |
57 | return -EIO; |
58 | } | |
59 | ||
60 | switch(result[3]) { | |
61 | case 1: /* not tuned yet */ | |
62 | case 2: /* no signal/no lock*/ | |
63 | break; | |
64 | case 3: /* signal found and locked*/ | |
65 | *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | | |
66 | FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; | |
67 | break; | |
68 | case 4: | |
69 | *status = FE_TIMEDOUT; | |
70 | break; | |
71 | default: | |
72 | pr_info("%s: returned unknown value: %d\n", | |
e9815cee | 73 | __func__, result[3]); |
f961e71a AW |
74 | return -EIO; |
75 | } | |
1da177e4 LT |
76 | |
77 | return 0; | |
78 | } | |
79 | ||
80 | static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) | |
81 | { | |
82 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
83 | u8 b[] = { 0x00, 0x00, 0x00, 0x03, | |
84 | 0x00, 0x00, 0x00, 0x00, | |
85 | 0x00, 0x00, 0x00, 0x01, | |
86 | 0x00, 0x00, 0x00, 0xff, | |
87 | 0x00, 0x00, 0x00, 0xff }; | |
88 | ||
89 | u32 freq = htonl(p->frequency / 1000); | |
90 | memcpy(&b[4], &freq, sizeof (u32)); | |
91 | state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
f961e71a AW |
96 | static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe, |
97 | struct dvb_frontend_tune_settings* fesettings) | |
98 | { | |
99 | fesettings->min_delay_ms = 1500; | |
100 | /* Drift compensation makes no sense for DVB-T */ | |
101 | fesettings->step_size = 0; | |
102 | fesettings->max_drift = 0; | |
103 | return 0; | |
104 | } | |
105 | ||
1da177e4 LT |
106 | static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) |
107 | { | |
108 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
109 | ||
110 | u8 b[] = { 0x00, 0x00, 0x00, 0x01, | |
111 | 0x00, 0x00, 0x00, 0x00, | |
112 | 0x00, 0x00, 0x00, 0x01, | |
113 | 0x00, 0x00, 0x00, 0x00, | |
114 | 0x00, 0x00, 0x00, 0x00, | |
115 | 0x00, 0x00, 0x00, 0x00, | |
116 | 0x00, 0x00, 0x00, 0x00, | |
117 | 0x00, 0x00, 0x00, 0x00, | |
118 | 0x00, 0x00, 0x00, 0x00, | |
119 | 0x00, 0x00, 0x00, 0x00 }; | |
120 | u32 freq; | |
121 | u32 sym_rate; | |
122 | u32 band; | |
123 | u32 lnb_voltage; | |
124 | ||
125 | freq = htonl(p->frequency + | |
126 | (state->hi_band ? LOF_HI : LOF_LO)); | |
127 | memcpy(&b[4], &freq, sizeof(u32)); | |
128 | sym_rate = htonl(p->u.qam.symbol_rate); | |
129 | memcpy(&b[12], &sym_rate, sizeof(u32)); | |
130 | band = htonl(state->hi_band ? LOF_HI : LOF_LO); | |
131 | memcpy(&b[24], &band, sizeof(u32)); | |
132 | lnb_voltage = htonl(state->voltage); | |
133 | memcpy(&b[28], &lnb_voltage, sizeof(u32)); | |
134 | ||
135 | state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); | |
136 | ||
137 | return 0; | |
138 | } | |
139 | ||
140 | static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd) | |
141 | { | |
142 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
143 | u8 b[] = { 0x00, 0xff, 0x00, 0x00, | |
144 | 0x00, 0x00, 0x00, 0x00, | |
145 | 0x00, 0x00 }; | |
146 | ||
147 | memcpy(&b[4], cmd->msg, cmd->msg_len); | |
148 | ||
149 | state->config->send_command(fe, 0x72, | |
150 | sizeof(b) - (6 - cmd->msg_len), b, | |
151 | NULL, NULL); | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | ||
157 | static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) | |
158 | { | |
159 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
160 | ||
161 | state->hi_band = (SEC_TONE_ON == tone); | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
166 | ||
167 | static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage) | |
168 | { | |
169 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
170 | ||
171 | switch (voltage) { | |
172 | case SEC_VOLTAGE_13: | |
173 | state->voltage = 13; | |
174 | break; | |
175 | case SEC_VOLTAGE_18: | |
176 | state->voltage = 18; | |
177 | break; | |
178 | default: | |
179 | return -EINVAL; | |
180 | } | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
185 | static void ttusbdecfe_release(struct dvb_frontend* fe) | |
186 | { | |
187 | struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; | |
188 | kfree(state); | |
189 | } | |
190 | ||
191 | static struct dvb_frontend_ops ttusbdecfe_dvbt_ops; | |
192 | ||
193 | struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config) | |
194 | { | |
195 | struct ttusbdecfe_state* state = NULL; | |
196 | ||
197 | /* allocate memory for the internal state */ | |
5cbded58 | 198 | state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); |
771e7157 AB |
199 | if (state == NULL) |
200 | return NULL; | |
1da177e4 LT |
201 | |
202 | /* setup the state */ | |
203 | state->config = config; | |
1da177e4 LT |
204 | |
205 | /* create dvb_frontend */ | |
dea74869 | 206 | memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops)); |
1da177e4 LT |
207 | state->frontend.demodulator_priv = state; |
208 | return &state->frontend; | |
1da177e4 LT |
209 | } |
210 | ||
211 | static struct dvb_frontend_ops ttusbdecfe_dvbs_ops; | |
212 | ||
213 | struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config) | |
214 | { | |
215 | struct ttusbdecfe_state* state = NULL; | |
216 | ||
217 | /* allocate memory for the internal state */ | |
5cbded58 | 218 | state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); |
771e7157 AB |
219 | if (state == NULL) |
220 | return NULL; | |
1da177e4 LT |
221 | |
222 | /* setup the state */ | |
223 | state->config = config; | |
224 | state->voltage = 0; | |
225 | state->hi_band = 0; | |
1da177e4 LT |
226 | |
227 | /* create dvb_frontend */ | |
dea74869 | 228 | memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops)); |
1da177e4 LT |
229 | state->frontend.demodulator_priv = state; |
230 | return &state->frontend; | |
1da177e4 LT |
231 | } |
232 | ||
233 | static struct dvb_frontend_ops ttusbdecfe_dvbt_ops = { | |
234 | ||
235 | .info = { | |
236 | .name = "TechnoTrend/Hauppauge DEC2000-t Frontend", | |
237 | .type = FE_OFDM, | |
238 | .frequency_min = 51000000, | |
239 | .frequency_max = 858000000, | |
240 | .frequency_stepsize = 62500, | |
241 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
242 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
243 | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | |
244 | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | | |
245 | FE_CAN_HIERARCHY_AUTO, | |
246 | }, | |
247 | ||
248 | .release = ttusbdecfe_release, | |
249 | ||
250 | .set_frontend = ttusbdecfe_dvbt_set_frontend, | |
251 | ||
f961e71a AW |
252 | .get_tune_settings = ttusbdecfe_dvbt_get_tune_settings, |
253 | ||
1da177e4 LT |
254 | .read_status = ttusbdecfe_read_status, |
255 | }; | |
256 | ||
257 | static struct dvb_frontend_ops ttusbdecfe_dvbs_ops = { | |
258 | ||
259 | .info = { | |
260 | .name = "TechnoTrend/Hauppauge DEC3000-s Frontend", | |
261 | .type = FE_QPSK, | |
262 | .frequency_min = 950000, | |
263 | .frequency_max = 2150000, | |
264 | .frequency_stepsize = 125, | |
f961e71a AW |
265 | .symbol_rate_min = 1000000, /* guessed */ |
266 | .symbol_rate_max = 45000000, /* guessed */ | |
1da177e4 LT |
267 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
268 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
f961e71a | 269 | FE_CAN_QPSK |
1da177e4 LT |
270 | }, |
271 | ||
272 | .release = ttusbdecfe_release, | |
273 | ||
274 | .set_frontend = ttusbdecfe_dvbs_set_frontend, | |
275 | ||
276 | .read_status = ttusbdecfe_read_status, | |
277 | ||
278 | .diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd, | |
279 | .set_voltage = ttusbdecfe_dvbs_set_voltage, | |
280 | .set_tone = ttusbdecfe_dvbs_set_tone, | |
281 | }; | |
282 | ||
283 | MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver"); | |
284 | MODULE_AUTHOR("Alex Woods/Andrew de Quincey"); | |
285 | MODULE_LICENSE("GPL"); | |
286 | ||
287 | EXPORT_SYMBOL(ttusbdecfe_dvbt_attach); | |
288 | EXPORT_SYMBOL(ttusbdecfe_dvbs_attach); |