1e5526848SDaniel Scheller // SPDX-License-Identifier: GPL-2.0
2e5526848SDaniel Scheller /*
3e5526848SDaniel Scheller * ddbridge-sx8.c: Digital Devices MAX SX8 driver
4e5526848SDaniel Scheller *
5e5526848SDaniel Scheller * Copyright (C) 2018 Digital Devices GmbH
6e5526848SDaniel Scheller * Marcus Metzler <mocm@metzlerbros.de>
7e5526848SDaniel Scheller * Ralph Metzler <rjkm@metzlerbros.de>
8e5526848SDaniel Scheller */
9e5526848SDaniel Scheller
10e5526848SDaniel Scheller #include "ddbridge.h"
11e5526848SDaniel Scheller #include "ddbridge-io.h"
12e5526848SDaniel Scheller #include "ddbridge-mci.h"
13e5526848SDaniel Scheller
14e5526848SDaniel Scheller static const u32 MCLK = (1550000000 / 12);
15e5526848SDaniel Scheller static const u32 MAX_LDPC_BITRATE = (720000000);
16e5526848SDaniel Scheller static const u32 MAX_DEMOD_LDPC_BITRATE = (1550000000 / 6);
17e5526848SDaniel Scheller
18e5526848SDaniel Scheller #define SX8_TUNER_NUM 4
19e5526848SDaniel Scheller #define SX8_DEMOD_NUM 8
20e5526848SDaniel Scheller #define SX8_DEMOD_NONE 0xff
21e5526848SDaniel Scheller
22e5526848SDaniel Scheller struct sx8_base {
23e5526848SDaniel Scheller struct mci_base mci_base;
24e5526848SDaniel Scheller
25e5526848SDaniel Scheller u8 tuner_use_count[SX8_TUNER_NUM];
26e5526848SDaniel Scheller u32 gain_mode[SX8_TUNER_NUM];
27e5526848SDaniel Scheller
28e5526848SDaniel Scheller u32 used_ldpc_bitrate[SX8_DEMOD_NUM];
29e5526848SDaniel Scheller u8 demod_in_use[SX8_DEMOD_NUM];
30e5526848SDaniel Scheller u32 iq_mode;
31e5526848SDaniel Scheller u32 burst_size;
32e5526848SDaniel Scheller u32 direct_mode;
33e5526848SDaniel Scheller };
34e5526848SDaniel Scheller
35e5526848SDaniel Scheller struct sx8 {
36e5526848SDaniel Scheller struct mci mci;
37e5526848SDaniel Scheller
38e5526848SDaniel Scheller int first_time_lock;
39e5526848SDaniel Scheller int started;
40e5526848SDaniel Scheller struct mci_result signal_info;
41e5526848SDaniel Scheller
42e5526848SDaniel Scheller u32 bb_mode;
43e5526848SDaniel Scheller u32 local_frequency;
44e5526848SDaniel Scheller };
45e5526848SDaniel Scheller
release(struct dvb_frontend * fe)46e5526848SDaniel Scheller static void release(struct dvb_frontend *fe)
47e5526848SDaniel Scheller {
48e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
49e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
50e5526848SDaniel Scheller
51e5526848SDaniel Scheller mci_base->count--;
52e5526848SDaniel Scheller if (mci_base->count == 0) {
53e5526848SDaniel Scheller list_del(&mci_base->mci_list);
54e5526848SDaniel Scheller kfree(mci_base);
55e5526848SDaniel Scheller }
56e5526848SDaniel Scheller kfree(state);
57e5526848SDaniel Scheller }
58e5526848SDaniel Scheller
get_info(struct dvb_frontend * fe)59e5526848SDaniel Scheller static int get_info(struct dvb_frontend *fe)
60e5526848SDaniel Scheller {
61e5526848SDaniel Scheller int stat;
62e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
63e5526848SDaniel Scheller struct mci_command cmd;
64e5526848SDaniel Scheller
65e5526848SDaniel Scheller memset(&cmd, 0, sizeof(cmd));
66e5526848SDaniel Scheller cmd.command = MCI_CMD_GETSIGNALINFO;
67e5526848SDaniel Scheller cmd.demod = state->mci.demod;
68e5526848SDaniel Scheller stat = ddb_mci_cmd(&state->mci, &cmd, &state->signal_info);
69e5526848SDaniel Scheller return stat;
70e5526848SDaniel Scheller }
71e5526848SDaniel Scheller
get_snr(struct dvb_frontend * fe)72e5526848SDaniel Scheller static int get_snr(struct dvb_frontend *fe)
73e5526848SDaniel Scheller {
74e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
75e5526848SDaniel Scheller struct dtv_frontend_properties *p = &fe->dtv_property_cache;
76e5526848SDaniel Scheller
77e5526848SDaniel Scheller p->cnr.len = 1;
78e5526848SDaniel Scheller p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
79e5526848SDaniel Scheller p->cnr.stat[0].svalue =
80e5526848SDaniel Scheller (s64)state->signal_info.dvbs2_signal_info.signal_to_noise
81e5526848SDaniel Scheller * 10;
82e5526848SDaniel Scheller return 0;
83e5526848SDaniel Scheller }
84e5526848SDaniel Scheller
get_strength(struct dvb_frontend * fe)85e5526848SDaniel Scheller static int get_strength(struct dvb_frontend *fe)
86e5526848SDaniel Scheller {
87e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
88e5526848SDaniel Scheller struct dtv_frontend_properties *p = &fe->dtv_property_cache;
89e5526848SDaniel Scheller s32 str;
90e5526848SDaniel Scheller
91e5526848SDaniel Scheller str = 100000 -
92e5526848SDaniel Scheller (state->signal_info.dvbs2_signal_info.channel_power
93e5526848SDaniel Scheller * 10 + 108750);
94e5526848SDaniel Scheller p->strength.len = 1;
95e5526848SDaniel Scheller p->strength.stat[0].scale = FE_SCALE_DECIBEL;
96e5526848SDaniel Scheller p->strength.stat[0].svalue = str;
97e5526848SDaniel Scheller return 0;
98e5526848SDaniel Scheller }
99e5526848SDaniel Scheller
read_status(struct dvb_frontend * fe,enum fe_status * status)100e5526848SDaniel Scheller static int read_status(struct dvb_frontend *fe, enum fe_status *status)
101e5526848SDaniel Scheller {
102e5526848SDaniel Scheller int stat;
103e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
104e5526848SDaniel Scheller struct mci_command cmd;
105e5526848SDaniel Scheller struct mci_result res;
106e5526848SDaniel Scheller
107e5526848SDaniel Scheller cmd.command = MCI_CMD_GETSTATUS;
108e5526848SDaniel Scheller cmd.demod = state->mci.demod;
109e5526848SDaniel Scheller stat = ddb_mci_cmd(&state->mci, &cmd, &res);
110e5526848SDaniel Scheller if (stat)
111e5526848SDaniel Scheller return stat;
112e5526848SDaniel Scheller *status = 0x00;
113e5526848SDaniel Scheller get_info(fe);
114e5526848SDaniel Scheller get_strength(fe);
115e5526848SDaniel Scheller if (res.status == SX8_DEMOD_WAIT_MATYPE)
116e5526848SDaniel Scheller *status = 0x0f;
117e5526848SDaniel Scheller if (res.status == SX8_DEMOD_LOCKED) {
118e5526848SDaniel Scheller *status = 0x1f;
119e5526848SDaniel Scheller get_snr(fe);
120e5526848SDaniel Scheller }
121e5526848SDaniel Scheller return stat;
122e5526848SDaniel Scheller }
123e5526848SDaniel Scheller
mci_set_tuner(struct dvb_frontend * fe,u32 tuner,u32 on)124e5526848SDaniel Scheller static int mci_set_tuner(struct dvb_frontend *fe, u32 tuner, u32 on)
125e5526848SDaniel Scheller {
126e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
127e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
128e5526848SDaniel Scheller struct sx8_base *sx8_base = (struct sx8_base *)mci_base;
129e5526848SDaniel Scheller struct mci_command cmd;
130e5526848SDaniel Scheller
131e5526848SDaniel Scheller memset(&cmd, 0, sizeof(cmd));
132e5526848SDaniel Scheller cmd.tuner = state->mci.tuner;
133e5526848SDaniel Scheller cmd.command = on ? SX8_CMD_INPUT_ENABLE : SX8_CMD_INPUT_DISABLE;
134e5526848SDaniel Scheller cmd.sx8_input_enable.flags = sx8_base->gain_mode[state->mci.tuner];
135e5526848SDaniel Scheller return ddb_mci_cmd(&state->mci, &cmd, NULL);
136e5526848SDaniel Scheller }
137e5526848SDaniel Scheller
stop(struct dvb_frontend * fe)138e5526848SDaniel Scheller static int stop(struct dvb_frontend *fe)
139e5526848SDaniel Scheller {
140e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
141e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
142e5526848SDaniel Scheller struct sx8_base *sx8_base = (struct sx8_base *)mci_base;
143e5526848SDaniel Scheller struct mci_command cmd;
144e5526848SDaniel Scheller u32 input = state->mci.tuner;
145e5526848SDaniel Scheller
146e5526848SDaniel Scheller memset(&cmd, 0, sizeof(cmd));
147e5526848SDaniel Scheller if (state->mci.demod != SX8_DEMOD_NONE) {
148e5526848SDaniel Scheller cmd.command = MCI_CMD_STOP;
149e5526848SDaniel Scheller cmd.demod = state->mci.demod;
150e5526848SDaniel Scheller ddb_mci_cmd(&state->mci, &cmd, NULL);
151e5526848SDaniel Scheller if (sx8_base->iq_mode) {
152e5526848SDaniel Scheller cmd.command = SX8_CMD_DISABLE_IQOUTPUT;
153e5526848SDaniel Scheller cmd.demod = state->mci.demod;
154e5526848SDaniel Scheller cmd.output = 0;
155e5526848SDaniel Scheller ddb_mci_cmd(&state->mci, &cmd, NULL);
156e5526848SDaniel Scheller ddb_mci_config(&state->mci, SX8_TSCONFIG_MODE_NORMAL);
157e5526848SDaniel Scheller }
158e5526848SDaniel Scheller }
159e5526848SDaniel Scheller mutex_lock(&mci_base->tuner_lock);
160e5526848SDaniel Scheller sx8_base->tuner_use_count[input]--;
161e5526848SDaniel Scheller if (!sx8_base->tuner_use_count[input])
162e5526848SDaniel Scheller mci_set_tuner(fe, input, 0);
163e5526848SDaniel Scheller if (state->mci.demod < SX8_DEMOD_NUM) {
164e5526848SDaniel Scheller sx8_base->demod_in_use[state->mci.demod] = 0;
165e5526848SDaniel Scheller state->mci.demod = SX8_DEMOD_NONE;
166e5526848SDaniel Scheller }
167e5526848SDaniel Scheller sx8_base->used_ldpc_bitrate[state->mci.nr] = 0;
168e5526848SDaniel Scheller sx8_base->iq_mode = 0;
169e5526848SDaniel Scheller mutex_unlock(&mci_base->tuner_lock);
170e5526848SDaniel Scheller state->started = 0;
171e5526848SDaniel Scheller return 0;
172e5526848SDaniel Scheller }
173e5526848SDaniel Scheller
start(struct dvb_frontend * fe,u32 flags,u32 modmask,u32 ts_config)174e5526848SDaniel Scheller static int start(struct dvb_frontend *fe, u32 flags, u32 modmask, u32 ts_config)
175e5526848SDaniel Scheller {
176e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
177e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
178e5526848SDaniel Scheller struct sx8_base *sx8_base = (struct sx8_base *)mci_base;
179e5526848SDaniel Scheller struct dtv_frontend_properties *p = &fe->dtv_property_cache;
180e5526848SDaniel Scheller u32 used_ldpc_bitrate = 0, free_ldpc_bitrate;
181e5526848SDaniel Scheller u32 used_demods = 0;
182e5526848SDaniel Scheller struct mci_command cmd;
183e5526848SDaniel Scheller u32 input = state->mci.tuner;
184e5526848SDaniel Scheller u32 bits_per_symbol = 0;
185e5526848SDaniel Scheller int i = -1, stat = 0;
186e5526848SDaniel Scheller
187e5526848SDaniel Scheller if (p->symbol_rate >= (MCLK / 2))
188e5526848SDaniel Scheller flags &= ~1;
189e5526848SDaniel Scheller if ((flags & 3) == 0)
190e5526848SDaniel Scheller return -EINVAL;
191e5526848SDaniel Scheller
192e5526848SDaniel Scheller if (flags & 2) {
193e5526848SDaniel Scheller u32 tmp = modmask;
194e5526848SDaniel Scheller
195e5526848SDaniel Scheller bits_per_symbol = 1;
196e5526848SDaniel Scheller while (tmp & 1) {
197e5526848SDaniel Scheller tmp >>= 1;
198e5526848SDaniel Scheller bits_per_symbol++;
199e5526848SDaniel Scheller }
200e5526848SDaniel Scheller }
201e5526848SDaniel Scheller
202e5526848SDaniel Scheller mutex_lock(&mci_base->tuner_lock);
203e5526848SDaniel Scheller if (sx8_base->iq_mode) {
204e5526848SDaniel Scheller stat = -EBUSY;
205e5526848SDaniel Scheller goto unlock;
206e5526848SDaniel Scheller }
207e5526848SDaniel Scheller
208e5526848SDaniel Scheller if (sx8_base->direct_mode) {
209e5526848SDaniel Scheller if (p->symbol_rate >= MCLK / 2) {
210e5526848SDaniel Scheller if (state->mci.nr < 4)
211e5526848SDaniel Scheller i = state->mci.nr;
212e5526848SDaniel Scheller } else {
213e5526848SDaniel Scheller i = state->mci.nr;
214e5526848SDaniel Scheller }
215e5526848SDaniel Scheller } else {
216e5526848SDaniel Scheller for (i = 0; i < SX8_DEMOD_NUM; i++) {
217e5526848SDaniel Scheller used_ldpc_bitrate += sx8_base->used_ldpc_bitrate[i];
218e5526848SDaniel Scheller if (sx8_base->demod_in_use[i])
219e5526848SDaniel Scheller used_demods++;
220e5526848SDaniel Scheller }
221e5526848SDaniel Scheller if (used_ldpc_bitrate >= MAX_LDPC_BITRATE ||
222e5526848SDaniel Scheller ((ts_config & SX8_TSCONFIG_MODE_MASK) >
223e5526848SDaniel Scheller SX8_TSCONFIG_MODE_NORMAL && used_demods > 0)) {
224e5526848SDaniel Scheller stat = -EBUSY;
225e5526848SDaniel Scheller goto unlock;
226e5526848SDaniel Scheller }
227e5526848SDaniel Scheller free_ldpc_bitrate = MAX_LDPC_BITRATE - used_ldpc_bitrate;
228e5526848SDaniel Scheller if (free_ldpc_bitrate > MAX_DEMOD_LDPC_BITRATE)
229e5526848SDaniel Scheller free_ldpc_bitrate = MAX_DEMOD_LDPC_BITRATE;
230e5526848SDaniel Scheller
231e5526848SDaniel Scheller while (p->symbol_rate * bits_per_symbol > free_ldpc_bitrate)
232e5526848SDaniel Scheller bits_per_symbol--;
233e5526848SDaniel Scheller if (bits_per_symbol < 2) {
234e5526848SDaniel Scheller stat = -EBUSY;
235e5526848SDaniel Scheller goto unlock;
236e5526848SDaniel Scheller }
237e5526848SDaniel Scheller
238e5526848SDaniel Scheller modmask &= ((1 << (bits_per_symbol - 1)) - 1);
239e5526848SDaniel Scheller if (((flags & 0x02) != 0) && modmask == 0) {
240e5526848SDaniel Scheller stat = -EBUSY;
241e5526848SDaniel Scheller goto unlock;
242e5526848SDaniel Scheller }
243e5526848SDaniel Scheller
244e5526848SDaniel Scheller i = (p->symbol_rate > (MCLK / 2)) ? 3 : 7;
245e5526848SDaniel Scheller while (i >= 0 && sx8_base->demod_in_use[i])
246e5526848SDaniel Scheller i--;
247e5526848SDaniel Scheller }
248e5526848SDaniel Scheller
249e5526848SDaniel Scheller if (i < 0) {
250e5526848SDaniel Scheller stat = -EBUSY;
251e5526848SDaniel Scheller goto unlock;
252e5526848SDaniel Scheller }
253e5526848SDaniel Scheller sx8_base->demod_in_use[i] = 1;
254e5526848SDaniel Scheller sx8_base->used_ldpc_bitrate[state->mci.nr] = p->symbol_rate
255e5526848SDaniel Scheller * bits_per_symbol;
256e5526848SDaniel Scheller state->mci.demod = i;
257e5526848SDaniel Scheller
258e5526848SDaniel Scheller if (!sx8_base->tuner_use_count[input])
259e5526848SDaniel Scheller mci_set_tuner(fe, input, 1);
260e5526848SDaniel Scheller sx8_base->tuner_use_count[input]++;
261e5526848SDaniel Scheller sx8_base->iq_mode = (ts_config > 1);
262e5526848SDaniel Scheller unlock:
263e5526848SDaniel Scheller mutex_unlock(&mci_base->tuner_lock);
264e5526848SDaniel Scheller if (stat)
265e5526848SDaniel Scheller return stat;
266e5526848SDaniel Scheller memset(&cmd, 0, sizeof(cmd));
267e5526848SDaniel Scheller
268e5526848SDaniel Scheller if (sx8_base->iq_mode) {
269e5526848SDaniel Scheller cmd.command = SX8_CMD_ENABLE_IQOUTPUT;
270e5526848SDaniel Scheller cmd.demod = state->mci.demod;
271e5526848SDaniel Scheller cmd.output = 0;
272e5526848SDaniel Scheller ddb_mci_cmd(&state->mci, &cmd, NULL);
273e5526848SDaniel Scheller ddb_mci_config(&state->mci, ts_config);
274e5526848SDaniel Scheller }
275e5526848SDaniel Scheller if (p->stream_id != NO_STREAM_ID_FILTER && p->stream_id != 0x80000000)
276e5526848SDaniel Scheller flags |= 0x80;
277e5526848SDaniel Scheller dev_dbg(mci_base->dev, "MCI-%d: tuner=%d demod=%d\n",
278e5526848SDaniel Scheller state->mci.nr, state->mci.tuner, state->mci.demod);
279e5526848SDaniel Scheller cmd.command = MCI_CMD_SEARCH_DVBS;
280e5526848SDaniel Scheller cmd.dvbs2_search.flags = flags;
281e5526848SDaniel Scheller cmd.dvbs2_search.s2_modulation_mask = modmask;
282e5526848SDaniel Scheller cmd.dvbs2_search.retry = 2;
283e5526848SDaniel Scheller cmd.dvbs2_search.frequency = p->frequency * 1000;
284e5526848SDaniel Scheller cmd.dvbs2_search.symbol_rate = p->symbol_rate;
285e5526848SDaniel Scheller cmd.dvbs2_search.scrambling_sequence_index =
2863153dfe2SDaniel Scheller p->scrambling_sequence_index | 0x80000000;
287e5526848SDaniel Scheller cmd.dvbs2_search.input_stream_id =
288e5526848SDaniel Scheller (p->stream_id != NO_STREAM_ID_FILTER) ? p->stream_id : 0;
289e5526848SDaniel Scheller cmd.tuner = state->mci.tuner;
290e5526848SDaniel Scheller cmd.demod = state->mci.demod;
291e5526848SDaniel Scheller cmd.output = state->mci.nr;
292e5526848SDaniel Scheller if (p->stream_id == 0x80000000)
293e5526848SDaniel Scheller cmd.output |= 0x80;
294e5526848SDaniel Scheller stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
295e5526848SDaniel Scheller if (stat)
296e5526848SDaniel Scheller stop(fe);
297e5526848SDaniel Scheller return stat;
298e5526848SDaniel Scheller }
299e5526848SDaniel Scheller
start_iq(struct dvb_frontend * fe,u32 flags,u32 roll_off,u32 ts_config)300e5526848SDaniel Scheller static int start_iq(struct dvb_frontend *fe, u32 flags, u32 roll_off,
301e5526848SDaniel Scheller u32 ts_config)
302e5526848SDaniel Scheller {
303e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
304e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
305e5526848SDaniel Scheller struct sx8_base *sx8_base = (struct sx8_base *)mci_base;
306e5526848SDaniel Scheller struct dtv_frontend_properties *p = &fe->dtv_property_cache;
307e5526848SDaniel Scheller u32 used_demods = 0;
308e5526848SDaniel Scheller struct mci_command cmd;
309e5526848SDaniel Scheller u32 input = state->mci.tuner;
310e5526848SDaniel Scheller int i, stat = 0;
311e5526848SDaniel Scheller
312e5526848SDaniel Scheller mutex_lock(&mci_base->tuner_lock);
313e5526848SDaniel Scheller if (sx8_base->iq_mode) {
314e5526848SDaniel Scheller stat = -EBUSY;
315e5526848SDaniel Scheller goto unlock;
316e5526848SDaniel Scheller }
317e5526848SDaniel Scheller for (i = 0; i < SX8_DEMOD_NUM; i++)
318e5526848SDaniel Scheller if (sx8_base->demod_in_use[i])
319e5526848SDaniel Scheller used_demods++;
320e5526848SDaniel Scheller if (used_demods > 0) {
321e5526848SDaniel Scheller stat = -EBUSY;
322e5526848SDaniel Scheller goto unlock;
323e5526848SDaniel Scheller }
324e5526848SDaniel Scheller state->mci.demod = 0;
325e5526848SDaniel Scheller if (!sx8_base->tuner_use_count[input])
326e5526848SDaniel Scheller mci_set_tuner(fe, input, 1);
327e5526848SDaniel Scheller sx8_base->tuner_use_count[input]++;
328e5526848SDaniel Scheller sx8_base->iq_mode = (ts_config > 1);
329e5526848SDaniel Scheller unlock:
330e5526848SDaniel Scheller mutex_unlock(&mci_base->tuner_lock);
331e5526848SDaniel Scheller if (stat)
332e5526848SDaniel Scheller return stat;
333e5526848SDaniel Scheller
334e5526848SDaniel Scheller memset(&cmd, 0, sizeof(cmd));
335e5526848SDaniel Scheller cmd.command = SX8_CMD_START_IQ;
336e5526848SDaniel Scheller cmd.sx8_start_iq.flags = flags;
337e5526848SDaniel Scheller cmd.sx8_start_iq.roll_off = roll_off;
338e5526848SDaniel Scheller cmd.sx8_start_iq.frequency = p->frequency * 1000;
339e5526848SDaniel Scheller cmd.sx8_start_iq.symbol_rate = p->symbol_rate;
340e5526848SDaniel Scheller cmd.tuner = state->mci.tuner;
341e5526848SDaniel Scheller cmd.demod = state->mci.demod;
342e5526848SDaniel Scheller stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
343e5526848SDaniel Scheller if (stat)
344e5526848SDaniel Scheller stop(fe);
345e5526848SDaniel Scheller ddb_mci_config(&state->mci, ts_config);
346e5526848SDaniel Scheller return stat;
347e5526848SDaniel Scheller }
348e5526848SDaniel Scheller
set_parameters(struct dvb_frontend * fe)349e5526848SDaniel Scheller static int set_parameters(struct dvb_frontend *fe)
350e5526848SDaniel Scheller {
351e5526848SDaniel Scheller int stat = 0;
352e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
353e5526848SDaniel Scheller struct dtv_frontend_properties *p = &fe->dtv_property_cache;
354e5526848SDaniel Scheller u32 ts_config = SX8_TSCONFIG_MODE_NORMAL, iq_mode = 0, isi;
355e5526848SDaniel Scheller
356e5526848SDaniel Scheller if (state->started)
357e5526848SDaniel Scheller stop(fe);
358e5526848SDaniel Scheller
359e5526848SDaniel Scheller isi = p->stream_id;
360e5526848SDaniel Scheller if (isi != NO_STREAM_ID_FILTER)
361e5526848SDaniel Scheller iq_mode = (isi & 0x30000000) >> 28;
362e5526848SDaniel Scheller
363e5526848SDaniel Scheller if (iq_mode)
364e5526848SDaniel Scheller ts_config = (SX8_TSCONFIG_TSHEADER | SX8_TSCONFIG_MODE_IQ);
365e5526848SDaniel Scheller if (iq_mode < 3) {
366e1f84840SDaniel Scheller u32 mask;
367e5526848SDaniel Scheller
368e1f84840SDaniel Scheller switch (p->modulation) {
369e1f84840SDaniel Scheller /* uncomment whenever these modulations hit the DVB API
370e1f84840SDaniel Scheller * case APSK_256:
371e1f84840SDaniel Scheller * mask = 0x7f;
372e1f84840SDaniel Scheller * break;
373e1f84840SDaniel Scheller * case APSK_128:
374e1f84840SDaniel Scheller * mask = 0x3f;
375e1f84840SDaniel Scheller * break;
376e1f84840SDaniel Scheller * case APSK_64:
377e1f84840SDaniel Scheller * mask = 0x1f;
378e1f84840SDaniel Scheller * break;
379e1f84840SDaniel Scheller */
380e1f84840SDaniel Scheller case APSK_32:
381e5526848SDaniel Scheller mask = 0x0f;
382e1f84840SDaniel Scheller break;
383e1f84840SDaniel Scheller case APSK_16:
384e1f84840SDaniel Scheller mask = 0x07;
385e1f84840SDaniel Scheller break;
386e1f84840SDaniel Scheller default:
387e1f84840SDaniel Scheller mask = 0x03;
388e1f84840SDaniel Scheller break;
389e5526848SDaniel Scheller }
390e1f84840SDaniel Scheller stat = start(fe, 3, mask, ts_config);
391e5526848SDaniel Scheller } else {
392c4189ffbSColin Ian King stat = start_iq(fe, 0, 4, ts_config);
393e5526848SDaniel Scheller }
394e5526848SDaniel Scheller if (!stat) {
395e5526848SDaniel Scheller state->started = 1;
396e5526848SDaniel Scheller state->first_time_lock = 1;
397e5526848SDaniel Scheller state->signal_info.status = SX8_DEMOD_WAIT_SIGNAL;
398e5526848SDaniel Scheller }
399e5526848SDaniel Scheller
400e5526848SDaniel Scheller return stat;
401e5526848SDaniel Scheller }
402e5526848SDaniel Scheller
tune(struct dvb_frontend * fe,bool re_tune,unsigned int mode_flags,unsigned int * delay,enum fe_status * status)403e5526848SDaniel Scheller static int tune(struct dvb_frontend *fe, bool re_tune,
404e5526848SDaniel Scheller unsigned int mode_flags,
405e5526848SDaniel Scheller unsigned int *delay, enum fe_status *status)
406e5526848SDaniel Scheller {
407e5526848SDaniel Scheller int r;
408e5526848SDaniel Scheller
409e5526848SDaniel Scheller if (re_tune) {
410e5526848SDaniel Scheller r = set_parameters(fe);
411e5526848SDaniel Scheller if (r)
412e5526848SDaniel Scheller return r;
413e5526848SDaniel Scheller }
414e5526848SDaniel Scheller r = read_status(fe, status);
415e5526848SDaniel Scheller if (r)
416e5526848SDaniel Scheller return r;
417e5526848SDaniel Scheller
418e5526848SDaniel Scheller if (*status & FE_HAS_LOCK)
419e5526848SDaniel Scheller return 0;
420e5526848SDaniel Scheller *delay = HZ / 10;
421e5526848SDaniel Scheller return 0;
422e5526848SDaniel Scheller }
423e5526848SDaniel Scheller
get_algo(struct dvb_frontend * fe)424e5526848SDaniel Scheller static enum dvbfe_algo get_algo(struct dvb_frontend *fe)
425e5526848SDaniel Scheller {
426e5526848SDaniel Scheller return DVBFE_ALGO_HW;
427e5526848SDaniel Scheller }
428e5526848SDaniel Scheller
set_input(struct dvb_frontend * fe,int input)429e5526848SDaniel Scheller static int set_input(struct dvb_frontend *fe, int input)
430e5526848SDaniel Scheller {
431e5526848SDaniel Scheller struct sx8 *state = fe->demodulator_priv;
432e5526848SDaniel Scheller struct mci_base *mci_base = state->mci.base;
433e5526848SDaniel Scheller
434e5526848SDaniel Scheller if (input >= SX8_TUNER_NUM)
435e5526848SDaniel Scheller return -EINVAL;
436e5526848SDaniel Scheller
437e5526848SDaniel Scheller state->mci.tuner = input;
438e5526848SDaniel Scheller dev_dbg(mci_base->dev, "MCI-%d: input=%d\n", state->mci.nr, input);
439e5526848SDaniel Scheller return 0;
440e5526848SDaniel Scheller }
441e5526848SDaniel Scheller
442e5526848SDaniel Scheller static struct dvb_frontend_ops sx8_ops = {
443e5526848SDaniel Scheller .delsys = { SYS_DVBS, SYS_DVBS2 },
444e5526848SDaniel Scheller .info = {
445e5526848SDaniel Scheller .name = "Digital Devices MaxSX8 MCI DVB-S/S2/S2X",
446f1b1eabfSMauro Carvalho Chehab .frequency_min_hz = 950 * MHz,
447f1b1eabfSMauro Carvalho Chehab .frequency_max_hz = 2150 * MHz,
448e5526848SDaniel Scheller .symbol_rate_min = 100000,
449e5526848SDaniel Scheller .symbol_rate_max = 100000000,
450e5526848SDaniel Scheller .caps = FE_CAN_INVERSION_AUTO |
451e5526848SDaniel Scheller FE_CAN_FEC_AUTO |
452e5526848SDaniel Scheller FE_CAN_QPSK |
453e5526848SDaniel Scheller FE_CAN_2G_MODULATION |
454e5526848SDaniel Scheller FE_CAN_MULTISTREAM,
455e5526848SDaniel Scheller },
456e5526848SDaniel Scheller .get_frontend_algo = get_algo,
457e5526848SDaniel Scheller .tune = tune,
458e5526848SDaniel Scheller .release = release,
459e5526848SDaniel Scheller .read_status = read_status,
460e5526848SDaniel Scheller };
461e5526848SDaniel Scheller
init(struct mci * mci)462e5526848SDaniel Scheller static int init(struct mci *mci)
463e5526848SDaniel Scheller {
464e5526848SDaniel Scheller struct sx8 *state = (struct sx8 *)mci;
465e5526848SDaniel Scheller
466e5526848SDaniel Scheller state->mci.demod = SX8_DEMOD_NONE;
467e5526848SDaniel Scheller return 0;
468e5526848SDaniel Scheller }
469e5526848SDaniel Scheller
470e5526848SDaniel Scheller const struct mci_cfg ddb_max_sx8_cfg = {
471e5526848SDaniel Scheller .type = 0,
472e5526848SDaniel Scheller .fe_ops = &sx8_ops,
473e5526848SDaniel Scheller .base_size = sizeof(struct sx8_base),
474e5526848SDaniel Scheller .state_size = sizeof(struct sx8),
475e5526848SDaniel Scheller .init = init,
476e5526848SDaniel Scheller .set_input = set_input,
477e5526848SDaniel Scheller };
478