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22#include "dvb_frontend.h"
23#include "ttusbdecfe.h"
24
25
26#define LOF_HI 10600000
27#define LOF_LO 9750000
28
29struct ttusbdecfe_state {
30
31
32 const struct ttusbdecfe_config* config;
33
34 struct dvb_frontend frontend;
35
36 u8 hi_band;
37 u8 voltage;
38};
39
40
41static int ttusbdecfe_dvbs_read_status(struct dvb_frontend *fe,
42 enum fe_status *status)
43{
44 *status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
45 FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
46 return 0;
47}
48
49
50static int ttusbdecfe_dvbt_read_status(struct dvb_frontend *fe,
51 enum fe_status *status)
52{
53 struct ttusbdecfe_state* state = fe->demodulator_priv;
54 u8 b[] = { 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x00, 0x00, 0x00 };
56 u8 result[4];
57 int len, ret;
58
59 *status=0;
60
61 ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result);
62 if(ret)
63 return ret;
64
65 if(len != 4) {
66 printk(KERN_ERR "%s: unexpected reply\n", __func__);
67 return -EIO;
68 }
69
70 switch(result[3]) {
71 case 1:
72 case 2:
73 break;
74 case 3:
75 *status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
76 FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
77 break;
78 case 4:
79 *status = FE_TIMEDOUT;
80 break;
81 default:
82 pr_info("%s: returned unknown value: %d\n",
83 __func__, result[3]);
84 return -EIO;
85 }
86
87 return 0;
88}
89
90static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend *fe)
91{
92 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
93 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
94 u8 b[] = { 0x00, 0x00, 0x00, 0x03,
95 0x00, 0x00, 0x00, 0x00,
96 0x00, 0x00, 0x00, 0x01,
97 0x00, 0x00, 0x00, 0xff,
98 0x00, 0x00, 0x00, 0xff };
99
100 __be32 freq = htonl(p->frequency / 1000);
101 memcpy(&b[4], &freq, sizeof (u32));
102 state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
103
104 return 0;
105}
106
107static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe,
108 struct dvb_frontend_tune_settings* fesettings)
109{
110 fesettings->min_delay_ms = 1500;
111
112 fesettings->step_size = 0;
113 fesettings->max_drift = 0;
114 return 0;
115}
116
117static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend *fe)
118{
119 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
120 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
121
122 u8 b[] = { 0x00, 0x00, 0x00, 0x01,
123 0x00, 0x00, 0x00, 0x00,
124 0x00, 0x00, 0x00, 0x01,
125 0x00, 0x00, 0x00, 0x00,
126 0x00, 0x00, 0x00, 0x00,
127 0x00, 0x00, 0x00, 0x00,
128 0x00, 0x00, 0x00, 0x00,
129 0x00, 0x00, 0x00, 0x00,
130 0x00, 0x00, 0x00, 0x00,
131 0x00, 0x00, 0x00, 0x00 };
132 __be32 freq;
133 __be32 sym_rate;
134 __be32 band;
135 __be32 lnb_voltage;
136
137 freq = htonl(p->frequency +
138 (state->hi_band ? LOF_HI : LOF_LO));
139 memcpy(&b[4], &freq, sizeof(u32));
140 sym_rate = htonl(p->symbol_rate);
141 memcpy(&b[12], &sym_rate, sizeof(u32));
142 band = htonl(state->hi_band ? LOF_HI : LOF_LO);
143 memcpy(&b[24], &band, sizeof(u32));
144 lnb_voltage = htonl(state->voltage);
145 memcpy(&b[28], &lnb_voltage, sizeof(u32));
146
147 state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
148
149 return 0;
150}
151
152static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
153{
154 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
155 u8 b[] = { 0x00, 0xff, 0x00, 0x00,
156 0x00, 0x00, 0x00, 0x00,
157 0x00, 0x00 };
158
159 if (cmd->msg_len > sizeof(b) - 4)
160 return -EINVAL;
161
162 memcpy(&b[4], cmd->msg, cmd->msg_len);
163
164 state->config->send_command(fe, 0x72,
165 sizeof(b) - (6 - cmd->msg_len), b,
166 NULL, NULL);
167
168 return 0;
169}
170
171
172static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend *fe,
173 enum fe_sec_tone_mode tone)
174{
175 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
176
177 state->hi_band = (SEC_TONE_ON == tone);
178
179 return 0;
180}
181
182
183static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend *fe,
184 enum fe_sec_voltage voltage)
185{
186 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
187
188 switch (voltage) {
189 case SEC_VOLTAGE_13:
190 state->voltage = 13;
191 break;
192 case SEC_VOLTAGE_18:
193 state->voltage = 18;
194 break;
195 default:
196 return -EINVAL;
197 }
198
199 return 0;
200}
201
202static void ttusbdecfe_release(struct dvb_frontend* fe)
203{
204 struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
205 kfree(state);
206}
207
208static struct dvb_frontend_ops ttusbdecfe_dvbt_ops;
209
210struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config)
211{
212 struct ttusbdecfe_state* state = NULL;
213
214
215 state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
216 if (state == NULL)
217 return NULL;
218
219
220 state->config = config;
221
222
223 memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops));
224 state->frontend.demodulator_priv = state;
225 return &state->frontend;
226}
227
228static struct dvb_frontend_ops ttusbdecfe_dvbs_ops;
229
230struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config)
231{
232 struct ttusbdecfe_state* state = NULL;
233
234
235 state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
236 if (state == NULL)
237 return NULL;
238
239
240 state->config = config;
241 state->voltage = 0;
242 state->hi_band = 0;
243
244
245 memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops));
246 state->frontend.demodulator_priv = state;
247 return &state->frontend;
248}
249
250static struct dvb_frontend_ops ttusbdecfe_dvbt_ops = {
251 .delsys = { SYS_DVBT },
252 .info = {
253 .name = "TechnoTrend/Hauppauge DEC2000-t Frontend",
254 .frequency_min = 51000000,
255 .frequency_max = 858000000,
256 .frequency_stepsize = 62500,
257 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
258 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
259 FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
260 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
261 FE_CAN_HIERARCHY_AUTO,
262 },
263
264 .release = ttusbdecfe_release,
265
266 .set_frontend = ttusbdecfe_dvbt_set_frontend,
267
268 .get_tune_settings = ttusbdecfe_dvbt_get_tune_settings,
269
270 .read_status = ttusbdecfe_dvbt_read_status,
271};
272
273static struct dvb_frontend_ops ttusbdecfe_dvbs_ops = {
274 .delsys = { SYS_DVBS },
275 .info = {
276 .name = "TechnoTrend/Hauppauge DEC3000-s Frontend",
277 .frequency_min = 950000,
278 .frequency_max = 2150000,
279 .frequency_stepsize = 125,
280 .symbol_rate_min = 1000000,
281 .symbol_rate_max = 45000000,
282 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
283 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
284 FE_CAN_QPSK
285 },
286
287 .release = ttusbdecfe_release,
288
289 .set_frontend = ttusbdecfe_dvbs_set_frontend,
290
291 .read_status = ttusbdecfe_dvbs_read_status,
292
293 .diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd,
294 .set_voltage = ttusbdecfe_dvbs_set_voltage,
295 .set_tone = ttusbdecfe_dvbs_set_tone,
296};
297
298MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver");
299MODULE_AUTHOR("Alex Woods/Andrew de Quincey");
300MODULE_LICENSE("GPL");
301
302EXPORT_SYMBOL(ttusbdecfe_dvbt_attach);
303EXPORT_SYMBOL(ttusbdecfe_dvbs_attach);
304
