tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * FireDTV driver (formerly known as FireSAT)
3 *
4 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
5 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 */
12
13#include <linux/device.h>
14#include <linux/errno.h>
15#include <linux/kernel.h>
16#include <linux/string.h>
17#include <linux/types.h>
18
19#include <dvb_frontend.h>
20
21#include "firedtv.h"
22
23static int fdtv_dvb_init(struct dvb_frontend *fe)
24{
25 struct firedtv *fdtv = fe->sec_priv;
26 int err;
27
28 /* FIXME - allocate free channel at IRM */
29 fdtv->isochannel = fdtv->adapter.num;
30
31 err = cmp_establish_pp_connection(fdtv, fdtv->subunit,
32 fdtv->isochannel);
33 if (err) {
34 dev_err(fdtv->device,
35 "could not establish point to point connection\n");
36 return err;
37 }
38
39 return fdtv_start_iso(fdtv);
40}
41
42static int fdtv_sleep(struct dvb_frontend *fe)
43{
44 struct firedtv *fdtv = fe->sec_priv;
45
46 fdtv_stop_iso(fdtv);
47 cmp_break_pp_connection(fdtv, fdtv->subunit, fdtv->isochannel);
48 fdtv->isochannel = -1;
49 return 0;
50}
51
52#define LNBCONTROL_DONTCARE 0xff
53
54static int fdtv_diseqc_send_master_cmd(struct dvb_frontend *fe,
55 struct dvb_diseqc_master_cmd *cmd)
56{
57 struct firedtv *fdtv = fe->sec_priv;
58
59 return avc_lnb_control(fdtv, LNBCONTROL_DONTCARE, LNBCONTROL_DONTCARE,
60 LNBCONTROL_DONTCARE, 1, cmd);
61}
62
63static int fdtv_diseqc_send_burst(struct dvb_frontend *fe,
64 fe_sec_mini_cmd_t minicmd)
65{
66 return 0;
67}
68
69static int fdtv_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
70{
71 struct firedtv *fdtv = fe->sec_priv;
72
73 fdtv->tone = tone;
74 return 0;
75}
76
77static int fdtv_set_voltage(struct dvb_frontend *fe,
78 fe_sec_voltage_t voltage)
79{
80 struct firedtv *fdtv = fe->sec_priv;
81
82 fdtv->voltage = voltage;
83 return 0;
84}
85
86static int fdtv_read_status(struct dvb_frontend *fe, fe_status_t *status)
87{
88 struct firedtv *fdtv = fe->sec_priv;
89 struct firedtv_tuner_status stat;
90
91 if (avc_tuner_status(fdtv, &stat))
92 return -EINVAL;
93
94 if (stat.no_rf)
95 *status = 0;
96 else
97 *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | FE_HAS_SYNC |
98 FE_HAS_CARRIER | FE_HAS_LOCK;
99 return 0;
100}
101
102static int fdtv_read_ber(struct dvb_frontend *fe, u32 *ber)
103{
104 struct firedtv *fdtv = fe->sec_priv;
105 struct firedtv_tuner_status stat;
106
107 if (avc_tuner_status(fdtv, &stat))
108 return -EINVAL;
109
110 *ber = stat.ber;
111 return 0;
112}
113
114static int fdtv_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
115{
116 struct firedtv *fdtv = fe->sec_priv;
117 struct firedtv_tuner_status stat;
118
119 if (avc_tuner_status(fdtv, &stat))
120 return -EINVAL;
121
122 *strength = stat.signal_strength << 8;
123 return 0;
124}
125
126static int fdtv_read_snr(struct dvb_frontend *fe, u16 *snr)
127{
128 struct firedtv *fdtv = fe->sec_priv;
129 struct firedtv_tuner_status stat;
130
131 if (avc_tuner_status(fdtv, &stat))
132 return -EINVAL;
133
134 /* C/N[dB] = -10 * log10(snr / 65535) */
135 *snr = stat.carrier_noise_ratio * 257;
136 return 0;
137}
138
139static int fdtv_read_uncorrected_blocks(struct dvb_frontend *fe, u32 *ucblocks)
140{
141 return -EOPNOTSUPP;
142}
143
144static int fdtv_set_frontend(struct dvb_frontend *fe,
145 struct dvb_frontend_parameters *params)
146{
147 struct firedtv *fdtv = fe->sec_priv;
148
149 return avc_tuner_dsd(fdtv, params);
150}
151
152static int fdtv_get_frontend(struct dvb_frontend *fe,
153 struct dvb_frontend_parameters *params)
154{
155 return -EOPNOTSUPP;
156}
157
158static int fdtv_get_property(struct dvb_frontend *fe, struct dtv_property *tvp)
159{
160 return 0;
161}
162
163static int fdtv_set_property(struct dvb_frontend *fe, struct dtv_property *tvp)
164{
165 return 0;
166}
167
168void fdtv_frontend_init(struct firedtv *fdtv, const char *name)
169{
170 struct dvb_frontend_ops *ops = &fdtv->fe.ops;
171 struct dvb_frontend_info *fi = &ops->info;
172
173 ops->init = fdtv_dvb_init;
174 ops->sleep = fdtv_sleep;
175
176 ops->set_frontend = fdtv_set_frontend;
177 ops->get_frontend = fdtv_get_frontend;
178
179 ops->get_property = fdtv_get_property;
180 ops->set_property = fdtv_set_property;
181
182 ops->read_status = fdtv_read_status;
183 ops->read_ber = fdtv_read_ber;
184 ops->read_signal_strength = fdtv_read_signal_strength;
185 ops->read_snr = fdtv_read_snr;
186 ops->read_ucblocks = fdtv_read_uncorrected_blocks;
187
188 ops->diseqc_send_master_cmd = fdtv_diseqc_send_master_cmd;
189 ops->diseqc_send_burst = fdtv_diseqc_send_burst;
190 ops->set_tone = fdtv_set_tone;
191 ops->set_voltage = fdtv_set_voltage;
192
193 switch (fdtv->type) {
194 case FIREDTV_DVB_S:
195 fi->type = FE_QPSK;
196
197 fi->frequency_min = 950000;
198 fi->frequency_max = 2150000;
199 fi->frequency_stepsize = 125;
200 fi->symbol_rate_min = 1000000;
201 fi->symbol_rate_max = 40000000;
202
203 fi->caps = FE_CAN_INVERSION_AUTO |
204 FE_CAN_FEC_1_2 |
205 FE_CAN_FEC_2_3 |
206 FE_CAN_FEC_3_4 |
207 FE_CAN_FEC_5_6 |
208 FE_CAN_FEC_7_8 |
209 FE_CAN_FEC_AUTO |
210 FE_CAN_QPSK;
211 break;
212
213 case FIREDTV_DVB_S2:
214 fi->type = FE_QPSK;
215
216 fi->frequency_min = 950000;
217 fi->frequency_max = 2150000;
218 fi->frequency_stepsize = 125;
219 fi->symbol_rate_min = 1000000;
220 fi->symbol_rate_max = 40000000;
221
222 fi->caps = FE_CAN_INVERSION_AUTO |
223 FE_CAN_FEC_1_2 |
224 FE_CAN_FEC_2_3 |
225 FE_CAN_FEC_3_4 |
226 FE_CAN_FEC_5_6 |
227 FE_CAN_FEC_7_8 |
228 FE_CAN_FEC_AUTO |
229 FE_CAN_QPSK |
230 FE_CAN_2G_MODULATION;
231 break;
232
233 case FIREDTV_DVB_C:
234 fi->type = FE_QAM;
235
236 fi->frequency_min = 47000000;
237 fi->frequency_max = 866000000;
238 fi->frequency_stepsize = 62500;
239 fi->symbol_rate_min = 870000;
240 fi->symbol_rate_max = 6900000;
241
242 fi->caps = FE_CAN_INVERSION_AUTO |
243 FE_CAN_QAM_16 |
244 FE_CAN_QAM_32 |
245 FE_CAN_QAM_64 |
246 FE_CAN_QAM_128 |
247 FE_CAN_QAM_256 |
248 FE_CAN_QAM_AUTO;
249 break;
250
251 case FIREDTV_DVB_T:
252 fi->type = FE_OFDM;
253
254 fi->frequency_min = 49000000;
255 fi->frequency_max = 861000000;
256 fi->frequency_stepsize = 62500;
257
258 fi->caps = FE_CAN_INVERSION_AUTO |
259 FE_CAN_FEC_2_3 |
260 FE_CAN_TRANSMISSION_MODE_AUTO |
261 FE_CAN_GUARD_INTERVAL_AUTO |
262 FE_CAN_HIERARCHY_AUTO;
263 break;
264
265 default:
266 dev_err(fdtv->device, "no frontend for model type %d\n",
267 fdtv->type);
268 }
269 strcpy(fi->name, name);
270
271 fdtv->fe.dvb = &fdtv->adapter;
272 fdtv->fe.sec_priv = fdtv;
273}