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b9ede79a MCC |
1 | /* |
2 | * Fujitu mb86a20s ISDB-T/ISDB-Tsb Module driver | |
3 | * | |
a77cfcac | 4 | * Copyright (C) 2010-2013 Mauro Carvalho Chehab <mchehab@redhat.com> |
b9ede79a MCC |
5 | * Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com> |
6 | * | |
b9ede79a MCC |
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 version 2. | |
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 GNU | |
14 | * General Public License for more details. | |
15 | */ | |
16 | ||
17 | #include <linux/kernel.h> | |
18 | #include <asm/div64.h> | |
19 | ||
20 | #include "dvb_frontend.h" | |
21 | #include "mb86a20s.h" | |
22 | ||
23 | static int debug = 1; | |
24 | module_param(debug, int, 0644); | |
25 | MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); | |
26 | ||
b9ede79a MCC |
27 | struct mb86a20s_state { |
28 | struct i2c_adapter *i2c; | |
29 | const struct mb86a20s_config *config; | |
09b6d21e | 30 | u32 last_frequency; |
b9ede79a MCC |
31 | |
32 | struct dvb_frontend frontend; | |
c736a5f2 | 33 | |
d01a8ee3 MCC |
34 | u32 estimated_rate[3]; |
35 | ||
c736a5f2 | 36 | bool need_init; |
b9ede79a MCC |
37 | }; |
38 | ||
39 | struct regdata { | |
40 | u8 reg; | |
41 | u8 data; | |
42 | }; | |
43 | ||
d01a8ee3 MCC |
44 | #define BER_SAMPLING_RATE 1 /* Seconds */ |
45 | ||
b9ede79a MCC |
46 | /* |
47 | * Initialization sequence: Use whatevere default values that PV SBTVD | |
48 | * does on its initialisation, obtained via USB snoop | |
49 | */ | |
50 | static struct regdata mb86a20s_init[] = { | |
51 | { 0x70, 0x0f }, | |
52 | { 0x70, 0xff }, | |
53 | { 0x08, 0x01 }, | |
54 | { 0x09, 0x3e }, | |
a7025edf | 55 | { 0x50, 0xd1 }, { 0x51, 0x22 }, |
b9ede79a MCC |
56 | { 0x39, 0x01 }, |
57 | { 0x71, 0x00 }, | |
a7025edf MCC |
58 | { 0x28, 0x2a }, { 0x29, 0x00 }, { 0x2a, 0xff }, { 0x2b, 0x80 }, |
59 | { 0x28, 0x20 }, { 0x29, 0x33 }, { 0x2a, 0xdf }, { 0x2b, 0xa9 }, | |
ebe96749 | 60 | { 0x28, 0x22 }, { 0x29, 0x00 }, { 0x2a, 0x1f }, { 0x2b, 0xf0 }, |
b9ede79a MCC |
61 | { 0x3b, 0x21 }, |
62 | { 0x3c, 0x3a }, | |
63 | { 0x01, 0x0d }, | |
a7025edf MCC |
64 | { 0x04, 0x08 }, { 0x05, 0x05 }, |
65 | { 0x04, 0x0e }, { 0x05, 0x00 }, | |
66 | { 0x04, 0x0f }, { 0x05, 0x14 }, | |
67 | { 0x04, 0x0b }, { 0x05, 0x8c }, | |
68 | { 0x04, 0x00 }, { 0x05, 0x00 }, | |
69 | { 0x04, 0x01 }, { 0x05, 0x07 }, | |
70 | { 0x04, 0x02 }, { 0x05, 0x0f }, | |
71 | { 0x04, 0x03 }, { 0x05, 0xa0 }, | |
72 | { 0x04, 0x09 }, { 0x05, 0x00 }, | |
73 | { 0x04, 0x0a }, { 0x05, 0xff }, | |
74 | { 0x04, 0x27 }, { 0x05, 0x64 }, | |
75 | { 0x04, 0x28 }, { 0x05, 0x00 }, | |
76 | { 0x04, 0x1e }, { 0x05, 0xff }, | |
77 | { 0x04, 0x29 }, { 0x05, 0x0a }, | |
78 | { 0x04, 0x32 }, { 0x05, 0x0a }, | |
79 | { 0x04, 0x14 }, { 0x05, 0x02 }, | |
80 | { 0x04, 0x04 }, { 0x05, 0x00 }, | |
81 | { 0x04, 0x05 }, { 0x05, 0x22 }, | |
82 | { 0x04, 0x06 }, { 0x05, 0x0e }, | |
83 | { 0x04, 0x07 }, { 0x05, 0xd8 }, | |
84 | { 0x04, 0x12 }, { 0x05, 0x00 }, | |
85 | { 0x04, 0x13 }, { 0x05, 0xff }, | |
ebe96749 MCC |
86 | { 0x04, 0x15 }, { 0x05, 0x4e }, |
87 | { 0x04, 0x16 }, { 0x05, 0x20 }, | |
09b6d21e MCC |
88 | |
89 | /* | |
90 | * On this demod, when the bit count reaches the count below, | |
91 | * it collects the bit error count. The bit counters are initialized | |
92 | * to 65535 here. This warrants that all of them will be quickly | |
93 | * calculated when device gets locked. As TMCC is parsed, the values | |
d01a8ee3 | 94 | * will be adjusted later in the driver's code. |
09b6d21e MCC |
95 | */ |
96 | { 0x52, 0x01 }, /* Turn on BER before Viterbi */ | |
97 | { 0x50, 0xa7 }, { 0x51, 0x00 }, | |
a7025edf MCC |
98 | { 0x50, 0xa8 }, { 0x51, 0xff }, |
99 | { 0x50, 0xa9 }, { 0x51, 0xff }, | |
09b6d21e | 100 | { 0x50, 0xaa }, { 0x51, 0x00 }, |
a7025edf MCC |
101 | { 0x50, 0xab }, { 0x51, 0xff }, |
102 | { 0x50, 0xac }, { 0x51, 0xff }, | |
09b6d21e | 103 | { 0x50, 0xad }, { 0x51, 0x00 }, |
a7025edf MCC |
104 | { 0x50, 0xae }, { 0x51, 0xff }, |
105 | { 0x50, 0xaf }, { 0x51, 0xff }, | |
09b6d21e | 106 | |
d9b6f08a MCC |
107 | /* |
108 | * On this demod, post BER counts blocks. When the count reaches the | |
109 | * value below, it collects the block error count. The block counters | |
110 | * are initialized to 127 here. This warrants that all of them will be | |
111 | * quickly calculated when device gets locked. As TMCC is parsed, the | |
112 | * values will be adjusted later in the driver's code. | |
113 | */ | |
114 | { 0x5e, 0x07 }, /* Turn on BER after Viterbi */ | |
115 | { 0x50, 0xdc }, { 0x51, 0x00 }, | |
116 | { 0x50, 0xdd }, { 0x51, 0x7f }, | |
117 | { 0x50, 0xde }, { 0x51, 0x00 }, | |
118 | { 0x50, 0xdf }, { 0x51, 0x7f }, | |
119 | { 0x50, 0xe0 }, { 0x51, 0x00 }, | |
120 | { 0x50, 0xe1 }, { 0x51, 0x7f }, | |
593ae89a MCC |
121 | |
122 | /* | |
123 | * On this demod, when the block count reaches the count below, | |
124 | * it collects the block error count. The block counters are initialized | |
125 | * to 127 here. This warrants that all of them will be quickly | |
126 | * calculated when device gets locked. As TMCC is parsed, the values | |
127 | * will be adjusted later in the driver's code. | |
128 | */ | |
129 | { 0x50, 0xb0 }, { 0x51, 0x07 }, /* Enable PER */ | |
130 | { 0x50, 0xb2 }, { 0x51, 0x00 }, | |
131 | { 0x50, 0xb3 }, { 0x51, 0x7f }, | |
132 | { 0x50, 0xb4 }, { 0x51, 0x00 }, | |
133 | { 0x50, 0xb5 }, { 0x51, 0x7f }, | |
134 | { 0x50, 0xb6 }, { 0x51, 0x00 }, | |
135 | { 0x50, 0xb7 }, { 0x51, 0x7f }, | |
25188bd0 MCC |
136 | |
137 | { 0x50, 0x50 }, { 0x51, 0x02 }, /* MER manual mode */ | |
09b6d21e MCC |
138 | { 0x50, 0x51 }, { 0x51, 0x04 }, /* MER symbol 4 */ |
139 | { 0x45, 0x04 }, /* CN symbol 4 */ | |
25188bd0 MCC |
140 | { 0x48, 0x04 }, /* CN manual mode */ |
141 | ||
a7025edf MCC |
142 | { 0x50, 0xd5 }, { 0x51, 0x01 }, /* Serial */ |
143 | { 0x50, 0xd6 }, { 0x51, 0x1f }, | |
144 | { 0x50, 0xd2 }, { 0x51, 0x03 }, | |
145 | { 0x50, 0xd7 }, { 0x51, 0x3f }, | |
ebe96749 MCC |
146 | { 0x28, 0x74 }, { 0x29, 0x00 }, { 0x28, 0x74 }, { 0x29, 0x40 }, |
147 | { 0x28, 0x46 }, { 0x29, 0x2c }, { 0x28, 0x46 }, { 0x29, 0x0c }, | |
ce77d120 MCC |
148 | |
149 | { 0x04, 0x40 }, { 0x05, 0x00 }, | |
ebe96749 MCC |
150 | { 0x28, 0x00 }, { 0x29, 0x10 }, |
151 | { 0x28, 0x05 }, { 0x29, 0x02 }, | |
b9ede79a | 152 | { 0x1c, 0x01 }, |
a7025edf MCC |
153 | { 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x03 }, |
154 | { 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0d }, | |
155 | { 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 }, | |
156 | { 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x01 }, | |
157 | { 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x21 }, | |
158 | { 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x29 }, | |
159 | { 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 }, | |
160 | { 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x31 }, | |
161 | { 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0e }, | |
162 | { 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x4e }, | |
163 | { 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x46 }, | |
164 | { 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f }, | |
165 | { 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x56 }, | |
166 | { 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x35 }, | |
167 | { 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbe }, | |
168 | { 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0x84 }, | |
169 | { 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x03 }, { 0x2b, 0xee }, | |
170 | { 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x98 }, | |
171 | { 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x9f }, | |
172 | { 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xb2 }, | |
173 | { 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0xc2 }, | |
174 | { 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0x4a }, | |
175 | { 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbc }, | |
176 | { 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x04 }, { 0x2b, 0xba }, | |
177 | { 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0x14 }, | |
178 | { 0x50, 0x1e }, { 0x51, 0x5d }, | |
179 | { 0x50, 0x22 }, { 0x51, 0x00 }, | |
180 | { 0x50, 0x23 }, { 0x51, 0xc8 }, | |
181 | { 0x50, 0x24 }, { 0x51, 0x00 }, | |
182 | { 0x50, 0x25 }, { 0x51, 0xf0 }, | |
183 | { 0x50, 0x26 }, { 0x51, 0x00 }, | |
184 | { 0x50, 0x27 }, { 0x51, 0xc3 }, | |
185 | { 0x50, 0x39 }, { 0x51, 0x02 }, | |
ebe96749 | 186 | { 0x28, 0x6a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 }, |
b9ede79a MCC |
187 | { 0xd0, 0x00 }, |
188 | }; | |
189 | ||
190 | static struct regdata mb86a20s_reset_reception[] = { | |
191 | { 0x70, 0xf0 }, | |
192 | { 0x70, 0xff }, | |
193 | { 0x08, 0x01 }, | |
194 | { 0x08, 0x00 }, | |
195 | }; | |
196 | ||
d9b6f08a MCC |
197 | static struct regdata mb86a20s_per_ber_reset[] = { |
198 | { 0x53, 0x00 }, /* pre BER Counter reset */ | |
09b6d21e | 199 | { 0x53, 0x07 }, |
09b6d21e | 200 | |
d9b6f08a MCC |
201 | { 0x5f, 0x00 }, /* post BER Counter reset */ |
202 | { 0x5f, 0x07 }, | |
203 | ||
09b6d21e MCC |
204 | { 0x50, 0xb1 }, /* PER Counter reset */ |
205 | { 0x51, 0x07 }, | |
206 | { 0x51, 0x00 }, | |
207 | }; | |
208 | ||
dd4493ef MCC |
209 | /* |
210 | * I2C read/write functions and macros | |
211 | */ | |
212 | ||
b9ede79a | 213 | static int mb86a20s_i2c_writereg(struct mb86a20s_state *state, |
09b6d21e | 214 | u8 i2c_addr, u8 reg, u8 data) |
b9ede79a MCC |
215 | { |
216 | u8 buf[] = { reg, data }; | |
217 | struct i2c_msg msg = { | |
218 | .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2 | |
219 | }; | |
220 | int rc; | |
221 | ||
222 | rc = i2c_transfer(state->i2c, &msg, 1); | |
223 | if (rc != 1) { | |
f66d81b5 MCC |
224 | dev_err(&state->i2c->dev, |
225 | "%s: writereg error (rc == %i, reg == 0x%02x, data == 0x%02x)\n", | |
226 | __func__, rc, reg, data); | |
b9ede79a MCC |
227 | return rc; |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int mb86a20s_i2c_writeregdata(struct mb86a20s_state *state, | |
234 | u8 i2c_addr, struct regdata *rd, int size) | |
235 | { | |
236 | int i, rc; | |
237 | ||
238 | for (i = 0; i < size; i++) { | |
239 | rc = mb86a20s_i2c_writereg(state, i2c_addr, rd[i].reg, | |
240 | rd[i].data); | |
241 | if (rc < 0) | |
242 | return rc; | |
243 | } | |
244 | return 0; | |
245 | } | |
246 | ||
247 | static int mb86a20s_i2c_readreg(struct mb86a20s_state *state, | |
248 | u8 i2c_addr, u8 reg) | |
249 | { | |
250 | u8 val; | |
251 | int rc; | |
252 | struct i2c_msg msg[] = { | |
253 | { .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 }, | |
254 | { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 } | |
255 | }; | |
256 | ||
257 | rc = i2c_transfer(state->i2c, msg, 2); | |
258 | ||
259 | if (rc != 2) { | |
f66d81b5 MCC |
260 | dev_err(&state->i2c->dev, "%s: reg=0x%x (error=%d)\n", |
261 | __func__, reg, rc); | |
262 | return (rc < 0) ? rc : -EIO; | |
b9ede79a MCC |
263 | } |
264 | ||
265 | return val; | |
266 | } | |
267 | ||
268 | #define mb86a20s_readreg(state, reg) \ | |
269 | mb86a20s_i2c_readreg(state, state->config->demod_address, reg) | |
270 | #define mb86a20s_writereg(state, reg, val) \ | |
271 | mb86a20s_i2c_writereg(state, state->config->demod_address, reg, val) | |
272 | #define mb86a20s_writeregdata(state, regdata) \ | |
273 | mb86a20s_i2c_writeregdata(state, state->config->demod_address, \ | |
274 | regdata, ARRAY_SIZE(regdata)) | |
275 | ||
09b6d21e MCC |
276 | /* |
277 | * Ancillary internal routines (likely compiled inlined) | |
278 | * | |
279 | * The functions below assume that gateway lock has already obtained | |
280 | */ | |
281 | ||
dd4493ef | 282 | static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status) |
b9ede79a MCC |
283 | { |
284 | struct mb86a20s_state *state = fe->demodulator_priv; | |
dd4493ef | 285 | int val; |
b9ede79a | 286 | |
dd4493ef | 287 | *status = 0; |
b9ede79a | 288 | |
dd4493ef MCC |
289 | val = mb86a20s_readreg(state, 0x0a) & 0xf; |
290 | if (val < 0) | |
291 | return val; | |
68541cda | 292 | |
dd4493ef MCC |
293 | if (val >= 2) |
294 | *status |= FE_HAS_SIGNAL; | |
b9ede79a | 295 | |
dd4493ef MCC |
296 | if (val >= 4) |
297 | *status |= FE_HAS_CARRIER; | |
7572f9c5 | 298 | |
dd4493ef MCC |
299 | if (val >= 5) |
300 | *status |= FE_HAS_VITERBI; | |
7572f9c5 | 301 | |
dd4493ef MCC |
302 | if (val >= 7) |
303 | *status |= FE_HAS_SYNC; | |
68541cda | 304 | |
dd4493ef MCC |
305 | if (val >= 8) /* Maybe 9? */ |
306 | *status |= FE_HAS_LOCK; | |
307 | ||
f66d81b5 MCC |
308 | dev_dbg(&state->i2c->dev, "%s: Status = 0x%02x (state = %d)\n", |
309 | __func__, *status, val); | |
dd4493ef MCC |
310 | |
311 | return 0; | |
b9ede79a MCC |
312 | } |
313 | ||
09b6d21e | 314 | static int mb86a20s_read_signal_strength(struct dvb_frontend *fe) |
b9ede79a MCC |
315 | { |
316 | struct mb86a20s_state *state = fe->demodulator_priv; | |
09b6d21e | 317 | int rc; |
b9ede79a | 318 | unsigned rf_max, rf_min, rf; |
68541cda | 319 | |
b9ede79a MCC |
320 | /* Does a binary search to get RF strength */ |
321 | rf_max = 0xfff; | |
322 | rf_min = 0; | |
323 | do { | |
324 | rf = (rf_max + rf_min) / 2; | |
09b6d21e MCC |
325 | rc = mb86a20s_writereg(state, 0x04, 0x1f); |
326 | if (rc < 0) | |
327 | return rc; | |
328 | rc = mb86a20s_writereg(state, 0x05, rf >> 8); | |
329 | if (rc < 0) | |
330 | return rc; | |
331 | rc = mb86a20s_writereg(state, 0x04, 0x20); | |
332 | if (rc < 0) | |
333 | return rc; | |
334 | rc = mb86a20s_writereg(state, 0x04, rf); | |
335 | if (rc < 0) | |
336 | return rc; | |
b9ede79a | 337 | |
09b6d21e MCC |
338 | rc = mb86a20s_readreg(state, 0x02); |
339 | if (rc < 0) | |
340 | return rc; | |
341 | if (rc & 0x08) | |
b9ede79a MCC |
342 | rf_min = (rf_max + rf_min) / 2; |
343 | else | |
344 | rf_max = (rf_max + rf_min) / 2; | |
345 | if (rf_max - rf_min < 4) { | |
09b6d21e MCC |
346 | rf = (rf_max + rf_min) / 2; |
347 | ||
348 | /* Rescale it from 2^12 (4096) to 2^16 */ | |
349 | rf <<= (16 - 12); | |
f66d81b5 MCC |
350 | dev_dbg(&state->i2c->dev, |
351 | "%s: signal strength = %d (%d < RF=%d < %d)\n", | |
352 | __func__, rf, rf_min, rf >> 4, rf_max); | |
09b6d21e | 353 | return rf; |
b9ede79a MCC |
354 | } |
355 | } while (1); | |
356 | ||
b9ede79a MCC |
357 | return 0; |
358 | } | |
359 | ||
959a119f MCC |
360 | static int mb86a20s_get_modulation(struct mb86a20s_state *state, |
361 | unsigned layer) | |
362 | { | |
363 | int rc; | |
364 | static unsigned char reg[] = { | |
365 | [0] = 0x86, /* Layer A */ | |
366 | [1] = 0x8a, /* Layer B */ | |
367 | [2] = 0x8e, /* Layer C */ | |
368 | }; | |
369 | ||
82033bc5 | 370 | if (layer >= ARRAY_SIZE(reg)) |
959a119f MCC |
371 | return -EINVAL; |
372 | rc = mb86a20s_writereg(state, 0x6d, reg[layer]); | |
373 | if (rc < 0) | |
374 | return rc; | |
375 | rc = mb86a20s_readreg(state, 0x6e); | |
376 | if (rc < 0) | |
377 | return rc; | |
04585921 | 378 | switch ((rc >> 4) & 0x07) { |
959a119f MCC |
379 | case 0: |
380 | return DQPSK; | |
381 | case 1: | |
382 | return QPSK; | |
383 | case 2: | |
384 | return QAM_16; | |
385 | case 3: | |
386 | return QAM_64; | |
387 | default: | |
388 | return QAM_AUTO; | |
389 | } | |
390 | } | |
391 | ||
392 | static int mb86a20s_get_fec(struct mb86a20s_state *state, | |
393 | unsigned layer) | |
394 | { | |
395 | int rc; | |
396 | ||
397 | static unsigned char reg[] = { | |
398 | [0] = 0x87, /* Layer A */ | |
399 | [1] = 0x8b, /* Layer B */ | |
400 | [2] = 0x8f, /* Layer C */ | |
401 | }; | |
402 | ||
82033bc5 | 403 | if (layer >= ARRAY_SIZE(reg)) |
959a119f MCC |
404 | return -EINVAL; |
405 | rc = mb86a20s_writereg(state, 0x6d, reg[layer]); | |
406 | if (rc < 0) | |
407 | return rc; | |
408 | rc = mb86a20s_readreg(state, 0x6e); | |
409 | if (rc < 0) | |
410 | return rc; | |
04585921 | 411 | switch ((rc >> 4) & 0x07) { |
959a119f MCC |
412 | case 0: |
413 | return FEC_1_2; | |
414 | case 1: | |
415 | return FEC_2_3; | |
416 | case 2: | |
417 | return FEC_3_4; | |
418 | case 3: | |
419 | return FEC_5_6; | |
420 | case 4: | |
421 | return FEC_7_8; | |
422 | default: | |
423 | return FEC_AUTO; | |
424 | } | |
425 | } | |
426 | ||
427 | static int mb86a20s_get_interleaving(struct mb86a20s_state *state, | |
428 | unsigned layer) | |
429 | { | |
430 | int rc; | |
431 | ||
432 | static unsigned char reg[] = { | |
433 | [0] = 0x88, /* Layer A */ | |
434 | [1] = 0x8c, /* Layer B */ | |
435 | [2] = 0x90, /* Layer C */ | |
436 | }; | |
437 | ||
82033bc5 | 438 | if (layer >= ARRAY_SIZE(reg)) |
959a119f MCC |
439 | return -EINVAL; |
440 | rc = mb86a20s_writereg(state, 0x6d, reg[layer]); | |
441 | if (rc < 0) | |
442 | return rc; | |
443 | rc = mb86a20s_readreg(state, 0x6e); | |
444 | if (rc < 0) | |
445 | return rc; | |
04585921 MCC |
446 | |
447 | switch ((rc >> 4) & 0x07) { | |
448 | case 1: | |
449 | return GUARD_INTERVAL_1_4; | |
450 | case 2: | |
451 | return GUARD_INTERVAL_1_8; | |
452 | case 3: | |
453 | return GUARD_INTERVAL_1_16; | |
454 | case 4: | |
455 | return GUARD_INTERVAL_1_32; | |
456 | ||
457 | default: | |
458 | case 0: | |
459 | return GUARD_INTERVAL_AUTO; | |
460 | } | |
959a119f MCC |
461 | } |
462 | ||
463 | static int mb86a20s_get_segment_count(struct mb86a20s_state *state, | |
464 | unsigned layer) | |
465 | { | |
466 | int rc, count; | |
959a119f MCC |
467 | static unsigned char reg[] = { |
468 | [0] = 0x89, /* Layer A */ | |
469 | [1] = 0x8d, /* Layer B */ | |
470 | [2] = 0x91, /* Layer C */ | |
471 | }; | |
472 | ||
f66d81b5 MCC |
473 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
474 | ||
82033bc5 | 475 | if (layer >= ARRAY_SIZE(reg)) |
959a119f | 476 | return -EINVAL; |
f66d81b5 | 477 | |
959a119f MCC |
478 | rc = mb86a20s_writereg(state, 0x6d, reg[layer]); |
479 | if (rc < 0) | |
480 | return rc; | |
481 | rc = mb86a20s_readreg(state, 0x6e); | |
482 | if (rc < 0) | |
483 | return rc; | |
484 | count = (rc >> 4) & 0x0f; | |
485 | ||
f66d81b5 MCC |
486 | dev_dbg(&state->i2c->dev, "%s: segments: %d.\n", __func__, count); |
487 | ||
959a119f MCC |
488 | return count; |
489 | } | |
490 | ||
a77cfcac MCC |
491 | static void mb86a20s_reset_frontend_cache(struct dvb_frontend *fe) |
492 | { | |
f66d81b5 | 493 | struct mb86a20s_state *state = fe->demodulator_priv; |
a77cfcac MCC |
494 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
495 | ||
f66d81b5 MCC |
496 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
497 | ||
a77cfcac MCC |
498 | /* Fixed parameters */ |
499 | c->delivery_system = SYS_ISDBT; | |
500 | c->bandwidth_hz = 6000000; | |
501 | ||
502 | /* Initialize values that will be later autodetected */ | |
503 | c->isdbt_layer_enabled = 0; | |
504 | c->transmission_mode = TRANSMISSION_MODE_AUTO; | |
505 | c->guard_interval = GUARD_INTERVAL_AUTO; | |
506 | c->isdbt_sb_mode = 0; | |
507 | c->isdbt_sb_segment_count = 0; | |
508 | } | |
509 | ||
d01a8ee3 MCC |
510 | /* |
511 | * Estimates the bit rate using the per-segment bit rate given by | |
512 | * ABNT/NBR 15601 spec (table 4). | |
513 | */ | |
514 | static u32 isdbt_rate[3][5][4] = { | |
515 | { /* DQPSK/QPSK */ | |
516 | { 280850, 312060, 330420, 340430 }, /* 1/2 */ | |
517 | { 374470, 416080, 440560, 453910 }, /* 2/3 */ | |
518 | { 421280, 468090, 495630, 510650 }, /* 3/4 */ | |
519 | { 468090, 520100, 550700, 567390 }, /* 5/6 */ | |
520 | { 491500, 546110, 578230, 595760 }, /* 7/8 */ | |
521 | }, { /* QAM16 */ | |
522 | { 561710, 624130, 660840, 680870 }, /* 1/2 */ | |
523 | { 748950, 832170, 881120, 907820 }, /* 2/3 */ | |
524 | { 842570, 936190, 991260, 1021300 }, /* 3/4 */ | |
525 | { 936190, 1040210, 1101400, 1134780 }, /* 5/6 */ | |
526 | { 983000, 1092220, 1156470, 1191520 }, /* 7/8 */ | |
527 | }, { /* QAM64 */ | |
528 | { 842570, 936190, 991260, 1021300 }, /* 1/2 */ | |
529 | { 1123430, 1248260, 1321680, 1361740 }, /* 2/3 */ | |
530 | { 1263860, 1404290, 1486900, 1531950 }, /* 3/4 */ | |
531 | { 1404290, 1560320, 1652110, 1702170 }, /* 5/6 */ | |
532 | { 1474500, 1638340, 1734710, 1787280 }, /* 7/8 */ | |
533 | } | |
534 | }; | |
535 | ||
536 | static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer, | |
537 | u32 modulation, u32 fec, u32 interleaving, | |
538 | u32 segment) | |
539 | { | |
540 | struct mb86a20s_state *state = fe->demodulator_priv; | |
541 | u32 rate; | |
542 | int m, f, i; | |
543 | ||
544 | /* | |
545 | * If modulation/fec/interleaving is not detected, the default is | |
546 | * to consider the lowest bit rate, to avoid taking too long time | |
547 | * to get BER. | |
548 | */ | |
549 | switch (modulation) { | |
550 | case DQPSK: | |
551 | case QPSK: | |
552 | default: | |
553 | m = 0; | |
554 | break; | |
555 | case QAM_16: | |
556 | m = 1; | |
557 | break; | |
558 | case QAM_64: | |
559 | m = 2; | |
560 | break; | |
561 | } | |
562 | ||
563 | switch (fec) { | |
564 | default: | |
565 | case FEC_1_2: | |
566 | case FEC_AUTO: | |
567 | f = 0; | |
568 | break; | |
569 | case FEC_2_3: | |
570 | f = 1; | |
571 | break; | |
572 | case FEC_3_4: | |
573 | f = 2; | |
574 | break; | |
575 | case FEC_5_6: | |
576 | f = 3; | |
577 | break; | |
578 | case FEC_7_8: | |
579 | f = 4; | |
580 | break; | |
581 | } | |
582 | ||
583 | switch (interleaving) { | |
584 | default: | |
585 | case GUARD_INTERVAL_1_4: | |
586 | i = 0; | |
587 | break; | |
588 | case GUARD_INTERVAL_1_8: | |
589 | i = 1; | |
590 | break; | |
591 | case GUARD_INTERVAL_1_16: | |
592 | i = 2; | |
593 | break; | |
594 | case GUARD_INTERVAL_1_32: | |
595 | i = 3; | |
596 | break; | |
597 | } | |
598 | ||
599 | /* Samples BER at BER_SAMPLING_RATE seconds */ | |
600 | rate = isdbt_rate[m][f][i] * segment * BER_SAMPLING_RATE; | |
601 | ||
602 | /* Avoids sampling too quickly or to overflow the register */ | |
603 | if (rate < 256) | |
604 | rate = 256; | |
605 | else if (rate > (1 << 24) - 1) | |
606 | rate = (1 << 24) - 1; | |
607 | ||
608 | dev_dbg(&state->i2c->dev, | |
609 | "%s: layer %c bitrate: %d kbps; counter = %d (0x%06x)\n", | |
610 | __func__, 'A' + layer, segment * isdbt_rate[m][f][i]/1000, | |
611 | rate, rate); | |
612 | ||
613 | state->estimated_rate[i] = rate; | |
614 | } | |
615 | ||
616 | ||
7c61d80a | 617 | static int mb86a20s_get_frontend(struct dvb_frontend *fe) |
b9ede79a | 618 | { |
959a119f | 619 | struct mb86a20s_state *state = fe->demodulator_priv; |
a77cfcac | 620 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
959a119f | 621 | int i, rc; |
b9ede79a | 622 | |
f66d81b5 MCC |
623 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
624 | ||
a77cfcac MCC |
625 | /* Reset frontend cache to default values */ |
626 | mb86a20s_reset_frontend_cache(fe); | |
959a119f | 627 | |
959a119f MCC |
628 | /* Check for partial reception */ |
629 | rc = mb86a20s_writereg(state, 0x6d, 0x85); | |
a77cfcac MCC |
630 | if (rc < 0) |
631 | return rc; | |
632 | rc = mb86a20s_readreg(state, 0x6e); | |
633 | if (rc < 0) | |
634 | return rc; | |
635 | c->isdbt_partial_reception = (rc & 0x10) ? 1 : 0; | |
959a119f MCC |
636 | |
637 | /* Get per-layer data */ | |
a77cfcac | 638 | |
959a119f | 639 | for (i = 0; i < 3; i++) { |
f66d81b5 MCC |
640 | dev_dbg(&state->i2c->dev, "%s: getting data for layer %c.\n", |
641 | __func__, 'A' + i); | |
642 | ||
959a119f | 643 | rc = mb86a20s_get_segment_count(state, i); |
a77cfcac | 644 | if (rc < 0) |
f66d81b5 | 645 | goto noperlayer_error; |
d01a8ee3 | 646 | if (rc >= 0 && rc < 14) { |
a77cfcac | 647 | c->layer[i].segment_count = rc; |
d01a8ee3 | 648 | } else { |
a77cfcac | 649 | c->layer[i].segment_count = 0; |
d01a8ee3 | 650 | state->estimated_rate[i] = 0; |
959a119f | 651 | continue; |
a77cfcac MCC |
652 | } |
653 | c->isdbt_layer_enabled |= 1 << i; | |
959a119f | 654 | rc = mb86a20s_get_modulation(state, i); |
a77cfcac | 655 | if (rc < 0) |
f66d81b5 MCC |
656 | goto noperlayer_error; |
657 | dev_dbg(&state->i2c->dev, "%s: modulation %d.\n", | |
658 | __func__, rc); | |
a77cfcac | 659 | c->layer[i].modulation = rc; |
959a119f | 660 | rc = mb86a20s_get_fec(state, i); |
a77cfcac | 661 | if (rc < 0) |
f66d81b5 MCC |
662 | goto noperlayer_error; |
663 | dev_dbg(&state->i2c->dev, "%s: FEC %d.\n", | |
664 | __func__, rc); | |
a77cfcac | 665 | c->layer[i].fec = rc; |
959a119f | 666 | rc = mb86a20s_get_interleaving(state, i); |
a77cfcac | 667 | if (rc < 0) |
f66d81b5 MCC |
668 | goto noperlayer_error; |
669 | dev_dbg(&state->i2c->dev, "%s: interleaving %d.\n", | |
670 | __func__, rc); | |
a77cfcac | 671 | c->layer[i].interleaving = rc; |
d01a8ee3 MCC |
672 | mb86a20s_layer_bitrate(fe, i, c->layer[i].modulation, |
673 | c->layer[i].fec, | |
674 | c->layer[i].interleaving, | |
675 | c->layer[i].segment_count); | |
959a119f MCC |
676 | } |
677 | ||
959a119f | 678 | rc = mb86a20s_writereg(state, 0x6d, 0x84); |
a77cfcac MCC |
679 | if (rc < 0) |
680 | return rc; | |
681 | if ((rc & 0x60) == 0x20) { | |
682 | c->isdbt_sb_mode = 1; | |
959a119f | 683 | /* At least, one segment should exist */ |
a77cfcac MCC |
684 | if (!c->isdbt_sb_segment_count) |
685 | c->isdbt_sb_segment_count = 1; | |
686 | } | |
959a119f MCC |
687 | |
688 | /* Get transmission mode and guard interval */ | |
959a119f | 689 | rc = mb86a20s_readreg(state, 0x07); |
a77cfcac MCC |
690 | if (rc < 0) |
691 | return rc; | |
692 | if ((rc & 0x60) == 0x20) { | |
693 | switch (rc & 0x0c >> 2) { | |
694 | case 0: | |
695 | c->transmission_mode = TRANSMISSION_MODE_2K; | |
696 | break; | |
697 | case 1: | |
698 | c->transmission_mode = TRANSMISSION_MODE_4K; | |
699 | break; | |
700 | case 2: | |
701 | c->transmission_mode = TRANSMISSION_MODE_8K; | |
702 | break; | |
959a119f | 703 | } |
a77cfcac MCC |
704 | } |
705 | if (!(rc & 0x10)) { | |
706 | switch (rc & 0x3) { | |
707 | case 0: | |
708 | c->guard_interval = GUARD_INTERVAL_1_4; | |
709 | break; | |
710 | case 1: | |
711 | c->guard_interval = GUARD_INTERVAL_1_8; | |
712 | break; | |
713 | case 2: | |
714 | c->guard_interval = GUARD_INTERVAL_1_16; | |
715 | break; | |
959a119f MCC |
716 | } |
717 | } | |
09b6d21e | 718 | return 0; |
959a119f | 719 | |
f66d81b5 | 720 | noperlayer_error: |
b9ede79a | 721 | |
09b6d21e MCC |
722 | /* per-layer info is incomplete; discard all per-layer */ |
723 | c->isdbt_layer_enabled = 0; | |
724 | ||
725 | return rc; | |
726 | } | |
727 | ||
728 | static int mb86a20s_reset_counters(struct dvb_frontend *fe) | |
729 | { | |
730 | struct mb86a20s_state *state = fe->demodulator_priv; | |
731 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
732 | int rc, val; | |
733 | ||
734 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
735 | ||
736 | /* Reset the counters, if the channel changed */ | |
737 | if (state->last_frequency != c->frequency) { | |
738 | memset(&c->strength, 0, sizeof(c->strength)); | |
739 | memset(&c->cnr, 0, sizeof(c->cnr)); | |
740 | memset(&c->pre_bit_error, 0, sizeof(c->pre_bit_error)); | |
741 | memset(&c->pre_bit_count, 0, sizeof(c->pre_bit_count)); | |
d9b6f08a MCC |
742 | memset(&c->post_bit_error, 0, sizeof(c->post_bit_error)); |
743 | memset(&c->post_bit_count, 0, sizeof(c->post_bit_count)); | |
09b6d21e MCC |
744 | memset(&c->block_error, 0, sizeof(c->block_error)); |
745 | memset(&c->block_count, 0, sizeof(c->block_count)); | |
746 | ||
747 | state->last_frequency = c->frequency; | |
748 | } | |
749 | ||
750 | /* Clear status for most stats */ | |
751 | ||
d9b6f08a MCC |
752 | /* BER/PER counter reset */ |
753 | rc = mb86a20s_writeregdata(state, mb86a20s_per_ber_reset); | |
09b6d21e MCC |
754 | if (rc < 0) |
755 | goto err; | |
756 | ||
757 | /* CNR counter reset */ | |
758 | rc = mb86a20s_readreg(state, 0x45); | |
759 | if (rc < 0) | |
760 | goto err; | |
761 | val = rc; | |
762 | rc = mb86a20s_writereg(state, 0x45, val | 0x10); | |
763 | if (rc < 0) | |
764 | goto err; | |
765 | rc = mb86a20s_writereg(state, 0x45, val & 0x6f); | |
766 | if (rc < 0) | |
767 | goto err; | |
768 | ||
769 | /* MER counter reset */ | |
770 | rc = mb86a20s_writereg(state, 0x50, 0x50); | |
771 | if (rc < 0) | |
772 | goto err; | |
773 | rc = mb86a20s_readreg(state, 0x51); | |
774 | if (rc < 0) | |
775 | goto err; | |
776 | val = rc; | |
777 | rc = mb86a20s_writereg(state, 0x51, val | 0x01); | |
778 | if (rc < 0) | |
779 | goto err; | |
780 | rc = mb86a20s_writereg(state, 0x51, val & 0x06); | |
781 | if (rc < 0) | |
782 | goto err; | |
783 | ||
149d518a | 784 | goto ok; |
09b6d21e | 785 | err: |
149d518a MCC |
786 | dev_err(&state->i2c->dev, |
787 | "%s: Can't reset FE statistics (error %d).\n", | |
788 | __func__, rc); | |
789 | ok: | |
a77cfcac | 790 | return rc; |
09b6d21e MCC |
791 | } |
792 | ||
ad0abbf1 MCC |
793 | static int mb86a20s_get_pre_ber(struct dvb_frontend *fe, |
794 | unsigned layer, | |
795 | u32 *error, u32 *count) | |
149d518a MCC |
796 | { |
797 | struct mb86a20s_state *state = fe->demodulator_priv; | |
ad0abbf1 | 798 | int rc, val; |
149d518a MCC |
799 | |
800 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
801 | ||
802 | if (layer >= 3) | |
803 | return -EINVAL; | |
804 | ||
805 | /* Check if the BER measures are already available */ | |
806 | rc = mb86a20s_readreg(state, 0x54); | |
807 | if (rc < 0) | |
808 | return rc; | |
809 | ||
810 | /* Check if data is available for that layer */ | |
811 | if (!(rc & (1 << layer))) { | |
812 | dev_dbg(&state->i2c->dev, | |
ad0abbf1 | 813 | "%s: preBER for layer %c is not available yet.\n", |
149d518a MCC |
814 | __func__, 'A' + layer); |
815 | return -EBUSY; | |
816 | } | |
817 | ||
818 | /* Read Bit Error Count */ | |
819 | rc = mb86a20s_readreg(state, 0x55 + layer * 3); | |
820 | if (rc < 0) | |
821 | return rc; | |
822 | *error = rc << 16; | |
823 | rc = mb86a20s_readreg(state, 0x56 + layer * 3); | |
824 | if (rc < 0) | |
825 | return rc; | |
826 | *error |= rc << 8; | |
827 | rc = mb86a20s_readreg(state, 0x57 + layer * 3); | |
828 | if (rc < 0) | |
829 | return rc; | |
830 | *error |= rc; | |
831 | ||
832 | dev_dbg(&state->i2c->dev, | |
833 | "%s: bit error before Viterbi for layer %c: %d.\n", | |
834 | __func__, 'A' + layer, *error); | |
835 | ||
836 | /* Read Bit Count */ | |
837 | rc = mb86a20s_writereg(state, 0x50, 0xa7 + layer * 3); | |
838 | if (rc < 0) | |
839 | return rc; | |
840 | rc = mb86a20s_readreg(state, 0x51); | |
841 | if (rc < 0) | |
842 | return rc; | |
843 | *count = rc << 16; | |
844 | rc = mb86a20s_writereg(state, 0x50, 0xa8 + layer * 3); | |
845 | if (rc < 0) | |
846 | return rc; | |
847 | rc = mb86a20s_readreg(state, 0x51); | |
848 | if (rc < 0) | |
849 | return rc; | |
850 | *count |= rc << 8; | |
851 | rc = mb86a20s_writereg(state, 0x50, 0xa9 + layer * 3); | |
852 | if (rc < 0) | |
853 | return rc; | |
854 | rc = mb86a20s_readreg(state, 0x51); | |
855 | if (rc < 0) | |
856 | return rc; | |
857 | *count |= rc; | |
858 | ||
859 | dev_dbg(&state->i2c->dev, | |
860 | "%s: bit count before Viterbi for layer %c: %d.\n", | |
861 | __func__, 'A' + layer, *count); | |
862 | ||
863 | ||
d01a8ee3 MCC |
864 | /* |
865 | * As we get TMCC data from the frontend, we can better estimate the | |
866 | * BER bit counters, in order to do the BER measure during a longer | |
867 | * time. Use those data, if available, to update the bit count | |
868 | * measure. | |
869 | */ | |
870 | ||
871 | if (state->estimated_rate[layer] | |
872 | && state->estimated_rate[layer] != *count) { | |
873 | dev_dbg(&state->i2c->dev, | |
ad0abbf1 | 874 | "%s: updating layer %c preBER counter to %d.\n", |
d01a8ee3 | 875 | __func__, 'A' + layer, state->estimated_rate[layer]); |
ad0abbf1 MCC |
876 | |
877 | /* Turn off BER before Viterbi */ | |
878 | rc = mb86a20s_writereg(state, 0x52, 0x00); | |
879 | ||
880 | /* Update counter for this layer */ | |
d01a8ee3 MCC |
881 | rc = mb86a20s_writereg(state, 0x50, 0xa7 + layer * 3); |
882 | if (rc < 0) | |
883 | return rc; | |
884 | rc = mb86a20s_writereg(state, 0x51, | |
885 | state->estimated_rate[layer] >> 16); | |
886 | if (rc < 0) | |
887 | return rc; | |
888 | rc = mb86a20s_writereg(state, 0x50, 0xa8 + layer * 3); | |
889 | if (rc < 0) | |
890 | return rc; | |
891 | rc = mb86a20s_writereg(state, 0x51, | |
892 | state->estimated_rate[layer] >> 8); | |
893 | if (rc < 0) | |
894 | return rc; | |
895 | rc = mb86a20s_writereg(state, 0x50, 0xa9 + layer * 3); | |
896 | if (rc < 0) | |
897 | return rc; | |
898 | rc = mb86a20s_writereg(state, 0x51, | |
899 | state->estimated_rate[layer]); | |
900 | if (rc < 0) | |
901 | return rc; | |
ad0abbf1 MCC |
902 | |
903 | /* Turn on BER before Viterbi */ | |
904 | rc = mb86a20s_writereg(state, 0x52, 0x01); | |
905 | ||
906 | /* Reset all preBER counters */ | |
907 | rc = mb86a20s_writereg(state, 0x53, 0x00); | |
908 | if (rc < 0) | |
909 | return rc; | |
910 | rc = mb86a20s_writereg(state, 0x53, 0x07); | |
911 | } else { | |
912 | /* Reset counter to collect new data */ | |
913 | rc = mb86a20s_readreg(state, 0x53); | |
914 | if (rc < 0) | |
915 | return rc; | |
916 | val = rc; | |
917 | rc = mb86a20s_writereg(state, 0x53, val & ~(1 << layer)); | |
918 | if (rc < 0) | |
919 | return rc; | |
920 | rc = mb86a20s_writereg(state, 0x53, val | (1 << layer)); | |
d01a8ee3 MCC |
921 | } |
922 | ||
d9b6f08a MCC |
923 | return rc; |
924 | } | |
925 | ||
926 | static int mb86a20s_get_post_ber(struct dvb_frontend *fe, | |
927 | unsigned layer, | |
928 | u32 *error, u32 *count) | |
929 | { | |
930 | struct mb86a20s_state *state = fe->demodulator_priv; | |
931 | u32 counter, collect_rate; | |
932 | int rc, val; | |
933 | ||
934 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
935 | ||
936 | if (layer >= 3) | |
937 | return -EINVAL; | |
938 | ||
939 | /* Check if the BER measures are already available */ | |
940 | rc = mb86a20s_readreg(state, 0x60); | |
941 | if (rc < 0) | |
942 | return rc; | |
943 | ||
944 | /* Check if data is available for that layer */ | |
945 | if (!(rc & (1 << layer))) { | |
946 | dev_dbg(&state->i2c->dev, | |
947 | "%s: post BER for layer %c is not available yet.\n", | |
948 | __func__, 'A' + layer); | |
949 | return -EBUSY; | |
950 | } | |
d01a8ee3 | 951 | |
d9b6f08a MCC |
952 | /* Read Bit Error Count */ |
953 | rc = mb86a20s_readreg(state, 0x64 + layer * 3); | |
954 | if (rc < 0) | |
955 | return rc; | |
956 | *error = rc << 16; | |
957 | rc = mb86a20s_readreg(state, 0x65 + layer * 3); | |
958 | if (rc < 0) | |
959 | return rc; | |
960 | *error |= rc << 8; | |
961 | rc = mb86a20s_readreg(state, 0x66 + layer * 3); | |
962 | if (rc < 0) | |
963 | return rc; | |
964 | *error |= rc; | |
965 | ||
966 | dev_dbg(&state->i2c->dev, | |
967 | "%s: post bit error for layer %c: %d.\n", | |
968 | __func__, 'A' + layer, *error); | |
969 | ||
970 | /* Read Bit Count */ | |
971 | rc = mb86a20s_writereg(state, 0x50, 0xdc + layer * 2); | |
972 | if (rc < 0) | |
973 | return rc; | |
974 | rc = mb86a20s_readreg(state, 0x51); | |
975 | if (rc < 0) | |
976 | return rc; | |
977 | counter = rc << 8; | |
978 | rc = mb86a20s_writereg(state, 0x50, 0xdd + layer * 2); | |
979 | if (rc < 0) | |
980 | return rc; | |
981 | rc = mb86a20s_readreg(state, 0x51); | |
982 | if (rc < 0) | |
983 | return rc; | |
984 | counter |= rc; | |
985 | *count = counter * 204 * 8; | |
986 | ||
987 | dev_dbg(&state->i2c->dev, | |
988 | "%s: post bit count for layer %c: %d.\n", | |
989 | __func__, 'A' + layer, *count); | |
990 | ||
991 | /* | |
992 | * As we get TMCC data from the frontend, we can better estimate the | |
993 | * BER bit counters, in order to do the BER measure during a longer | |
994 | * time. Use those data, if available, to update the bit count | |
995 | * measure. | |
996 | */ | |
997 | ||
998 | if (!state->estimated_rate[layer]) | |
999 | goto reset_measurement; | |
1000 | ||
1001 | collect_rate = state->estimated_rate[layer] / 204 / 8; | |
1002 | if (collect_rate < 32) | |
1003 | collect_rate = 32; | |
1004 | if (collect_rate > 65535) | |
1005 | collect_rate = 65535; | |
1006 | if (collect_rate != counter) { | |
1007 | dev_dbg(&state->i2c->dev, | |
1008 | "%s: updating postBER counter on layer %c to %d.\n", | |
1009 | __func__, 'A' + layer, collect_rate); | |
1010 | ||
1011 | /* Turn off BER after Viterbi */ | |
1012 | rc = mb86a20s_writereg(state, 0x5e, 0x00); | |
1013 | ||
1014 | /* Update counter for this layer */ | |
1015 | rc = mb86a20s_writereg(state, 0x50, 0xdc + layer * 2); | |
1016 | if (rc < 0) | |
1017 | return rc; | |
1018 | rc = mb86a20s_writereg(state, 0x51, collect_rate >> 8); | |
1019 | if (rc < 0) | |
1020 | return rc; | |
1021 | rc = mb86a20s_writereg(state, 0x50, 0xdd + layer * 2); | |
1022 | if (rc < 0) | |
1023 | return rc; | |
1024 | rc = mb86a20s_writereg(state, 0x51, collect_rate & 0xff); | |
1025 | if (rc < 0) | |
1026 | return rc; | |
1027 | ||
1028 | /* Turn on BER after Viterbi */ | |
1029 | rc = mb86a20s_writereg(state, 0x5e, 0x07); | |
1030 | ||
1031 | /* Reset all preBER counters */ | |
1032 | rc = mb86a20s_writereg(state, 0x5f, 0x00); | |
1033 | if (rc < 0) | |
1034 | return rc; | |
1035 | rc = mb86a20s_writereg(state, 0x5f, 0x07); | |
1036 | ||
1037 | return rc; | |
1038 | } | |
1039 | ||
1040 | reset_measurement: | |
149d518a | 1041 | /* Reset counter to collect new data */ |
ad0abbf1 MCC |
1042 | rc = mb86a20s_readreg(state, 0x5f); |
1043 | if (rc < 0) | |
1044 | return rc; | |
1045 | val = rc; | |
1046 | rc = mb86a20s_writereg(state, 0x5f, val & ~(1 << layer)); | |
149d518a MCC |
1047 | if (rc < 0) |
1048 | return rc; | |
d9b6f08a | 1049 | rc = mb86a20s_writereg(state, 0x5f, val | (1 << layer)); |
149d518a | 1050 | |
ad0abbf1 | 1051 | return rc; |
149d518a MCC |
1052 | } |
1053 | ||
593ae89a MCC |
1054 | static int mb86a20s_get_blk_error(struct dvb_frontend *fe, |
1055 | unsigned layer, | |
1056 | u32 *error, u32 *count) | |
1057 | { | |
1058 | struct mb86a20s_state *state = fe->demodulator_priv; | |
313cf4ef | 1059 | int rc, val; |
593ae89a MCC |
1060 | u32 collect_rate; |
1061 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
1062 | ||
1063 | if (layer >= 3) | |
1064 | return -EINVAL; | |
1065 | ||
1066 | /* Check if the PER measures are already available */ | |
1067 | rc = mb86a20s_writereg(state, 0x50, 0xb8); | |
1068 | if (rc < 0) | |
1069 | return rc; | |
1070 | rc = mb86a20s_readreg(state, 0x51); | |
1071 | if (rc < 0) | |
1072 | return rc; | |
1073 | ||
1074 | /* Check if data is available for that layer */ | |
1075 | ||
1076 | if (!(rc & (1 << layer))) { | |
1077 | dev_dbg(&state->i2c->dev, | |
1078 | "%s: block counts for layer %c aren't available yet.\n", | |
1079 | __func__, 'A' + layer); | |
1080 | return -EBUSY; | |
1081 | } | |
1082 | ||
1083 | /* Read Packet error Count */ | |
1084 | rc = mb86a20s_writereg(state, 0x50, 0xb9 + layer * 2); | |
1085 | if (rc < 0) | |
1086 | return rc; | |
1087 | rc = mb86a20s_readreg(state, 0x51); | |
1088 | if (rc < 0) | |
1089 | return rc; | |
1090 | *error = rc << 8; | |
1091 | rc = mb86a20s_writereg(state, 0x50, 0xba + layer * 2); | |
1092 | if (rc < 0) | |
1093 | return rc; | |
1094 | rc = mb86a20s_readreg(state, 0x51); | |
1095 | if (rc < 0) | |
1096 | return rc; | |
1097 | *error |= rc; | |
1098 | dev_err(&state->i2c->dev, "%s: block error for layer %c: %d.\n", | |
1099 | __func__, 'A' + layer, *error); | |
1100 | ||
1101 | /* Read Bit Count */ | |
1102 | rc = mb86a20s_writereg(state, 0x50, 0xb2 + layer * 2); | |
1103 | if (rc < 0) | |
1104 | return rc; | |
1105 | rc = mb86a20s_readreg(state, 0x51); | |
1106 | if (rc < 0) | |
1107 | return rc; | |
1108 | *count = rc << 8; | |
1109 | rc = mb86a20s_writereg(state, 0x50, 0xb3 + layer * 2); | |
1110 | if (rc < 0) | |
1111 | return rc; | |
1112 | rc = mb86a20s_readreg(state, 0x51); | |
1113 | if (rc < 0) | |
1114 | return rc; | |
1115 | *count |= rc; | |
1116 | ||
1117 | dev_dbg(&state->i2c->dev, | |
1118 | "%s: block count for layer %c: %d.\n", | |
1119 | __func__, 'A' + layer, *count); | |
1120 | ||
1121 | /* | |
1122 | * As we get TMCC data from the frontend, we can better estimate the | |
1123 | * BER bit counters, in order to do the BER measure during a longer | |
1124 | * time. Use those data, if available, to update the bit count | |
1125 | * measure. | |
1126 | */ | |
1127 | ||
1128 | if (!state->estimated_rate[layer]) | |
1129 | goto reset_measurement; | |
1130 | ||
1131 | collect_rate = state->estimated_rate[layer] / 204 / 8; | |
593ae89a MCC |
1132 | if (collect_rate < 32) |
1133 | collect_rate = 32; | |
1134 | if (collect_rate > 65535) | |
1135 | collect_rate = 65535; | |
1136 | ||
1137 | if (collect_rate != *count) { | |
1138 | dev_dbg(&state->i2c->dev, | |
1139 | "%s: updating PER counter on layer %c to %d.\n", | |
1140 | __func__, 'A' + layer, collect_rate); | |
313cf4ef MCC |
1141 | |
1142 | /* Stop PER measurement */ | |
1143 | rc = mb86a20s_writereg(state, 0x50, 0xb0); | |
1144 | if (rc < 0) | |
1145 | return rc; | |
1146 | rc = mb86a20s_writereg(state, 0x51, 0x00); | |
1147 | if (rc < 0) | |
1148 | return rc; | |
1149 | ||
1150 | /* Update this layer's counter */ | |
593ae89a MCC |
1151 | rc = mb86a20s_writereg(state, 0x50, 0xb2 + layer * 2); |
1152 | if (rc < 0) | |
1153 | return rc; | |
1154 | rc = mb86a20s_writereg(state, 0x51, collect_rate >> 8); | |
1155 | if (rc < 0) | |
1156 | return rc; | |
1157 | rc = mb86a20s_writereg(state, 0x50, 0xb3 + layer * 2); | |
1158 | if (rc < 0) | |
1159 | return rc; | |
1160 | rc = mb86a20s_writereg(state, 0x51, collect_rate & 0xff); | |
1161 | if (rc < 0) | |
1162 | return rc; | |
313cf4ef MCC |
1163 | |
1164 | /* start PER measurement */ | |
1165 | rc = mb86a20s_writereg(state, 0x50, 0xb0); | |
1166 | if (rc < 0) | |
1167 | return rc; | |
1168 | rc = mb86a20s_writereg(state, 0x51, 0x07); | |
1169 | if (rc < 0) | |
1170 | return rc; | |
1171 | ||
1172 | /* Reset all counters to collect new data */ | |
1173 | rc = mb86a20s_writereg(state, 0x50, 0xb1); | |
1174 | if (rc < 0) | |
1175 | return rc; | |
1176 | rc = mb86a20s_writereg(state, 0x51, 0x07); | |
1177 | if (rc < 0) | |
1178 | return rc; | |
1179 | rc = mb86a20s_writereg(state, 0x51, 0x00); | |
1180 | ||
1181 | return rc; | |
593ae89a MCC |
1182 | } |
1183 | ||
1184 | reset_measurement: | |
1185 | /* Reset counter to collect new data */ | |
1186 | rc = mb86a20s_writereg(state, 0x50, 0xb1); | |
1187 | if (rc < 0) | |
1188 | return rc; | |
313cf4ef | 1189 | rc = mb86a20s_readreg(state, 0x51); |
593ae89a MCC |
1190 | if (rc < 0) |
1191 | return rc; | |
313cf4ef MCC |
1192 | val = rc; |
1193 | rc = mb86a20s_writereg(state, 0x51, val | (1 << layer)); | |
593ae89a MCC |
1194 | if (rc < 0) |
1195 | return rc; | |
313cf4ef | 1196 | rc = mb86a20s_writereg(state, 0x51, val & ~(1 << layer)); |
593ae89a | 1197 | |
313cf4ef | 1198 | return rc; |
593ae89a MCC |
1199 | } |
1200 | ||
25188bd0 MCC |
1201 | struct linear_segments { |
1202 | unsigned x, y; | |
1203 | }; | |
1204 | ||
1205 | /* | |
1206 | * All tables below return a dB/1000 measurement | |
1207 | */ | |
1208 | ||
1209 | static struct linear_segments cnr_to_db_table[] = { | |
1210 | { 19648, 0}, | |
1211 | { 18187, 1000}, | |
1212 | { 16534, 2000}, | |
1213 | { 14823, 3000}, | |
1214 | { 13161, 4000}, | |
1215 | { 11622, 5000}, | |
1216 | { 10279, 6000}, | |
1217 | { 9089, 7000}, | |
1218 | { 8042, 8000}, | |
1219 | { 7137, 9000}, | |
1220 | { 6342, 10000}, | |
1221 | { 5641, 11000}, | |
1222 | { 5030, 12000}, | |
1223 | { 4474, 13000}, | |
1224 | { 3988, 14000}, | |
1225 | { 3556, 15000}, | |
1226 | { 3180, 16000}, | |
1227 | { 2841, 17000}, | |
1228 | { 2541, 18000}, | |
1229 | { 2276, 19000}, | |
1230 | { 2038, 20000}, | |
1231 | { 1800, 21000}, | |
1232 | { 1625, 22000}, | |
1233 | { 1462, 23000}, | |
1234 | { 1324, 24000}, | |
1235 | { 1175, 25000}, | |
1236 | { 1063, 26000}, | |
1237 | { 980, 27000}, | |
1238 | { 907, 28000}, | |
1239 | { 840, 29000}, | |
1240 | { 788, 30000}, | |
1241 | }; | |
1242 | ||
1243 | static struct linear_segments cnr_64qam_table[] = { | |
1244 | { 3922688, 0}, | |
1245 | { 3920384, 1000}, | |
1246 | { 3902720, 2000}, | |
1247 | { 3894784, 3000}, | |
1248 | { 3882496, 4000}, | |
1249 | { 3872768, 5000}, | |
1250 | { 3858944, 6000}, | |
1251 | { 3851520, 7000}, | |
1252 | { 3838976, 8000}, | |
1253 | { 3829248, 9000}, | |
1254 | { 3818240, 10000}, | |
1255 | { 3806976, 11000}, | |
1256 | { 3791872, 12000}, | |
1257 | { 3767040, 13000}, | |
1258 | { 3720960, 14000}, | |
1259 | { 3637504, 15000}, | |
1260 | { 3498496, 16000}, | |
1261 | { 3296000, 17000}, | |
1262 | { 3031040, 18000}, | |
1263 | { 2715392, 19000}, | |
1264 | { 2362624, 20000}, | |
1265 | { 1963264, 21000}, | |
1266 | { 1649664, 22000}, | |
1267 | { 1366784, 23000}, | |
1268 | { 1120768, 24000}, | |
1269 | { 890880, 25000}, | |
1270 | { 723456, 26000}, | |
1271 | { 612096, 27000}, | |
1272 | { 518912, 28000}, | |
1273 | { 448256, 29000}, | |
1274 | { 388864, 30000}, | |
1275 | }; | |
1276 | ||
1277 | static struct linear_segments cnr_16qam_table[] = { | |
1278 | { 5314816, 0}, | |
1279 | { 5219072, 1000}, | |
1280 | { 5118720, 2000}, | |
1281 | { 4998912, 3000}, | |
1282 | { 4875520, 4000}, | |
1283 | { 4736000, 5000}, | |
1284 | { 4604160, 6000}, | |
1285 | { 4458752, 7000}, | |
1286 | { 4300288, 8000}, | |
1287 | { 4092928, 9000}, | |
1288 | { 3836160, 10000}, | |
1289 | { 3521024, 11000}, | |
1290 | { 3155968, 12000}, | |
1291 | { 2756864, 13000}, | |
1292 | { 2347008, 14000}, | |
1293 | { 1955072, 15000}, | |
1294 | { 1593600, 16000}, | |
1295 | { 1297920, 17000}, | |
1296 | { 1043968, 18000}, | |
1297 | { 839680, 19000}, | |
1298 | { 672256, 20000}, | |
1299 | { 523008, 21000}, | |
1300 | { 424704, 22000}, | |
1301 | { 345088, 23000}, | |
1302 | { 280064, 24000}, | |
1303 | { 221440, 25000}, | |
1304 | { 179712, 26000}, | |
1305 | { 151040, 27000}, | |
1306 | { 128512, 28000}, | |
1307 | { 110080, 29000}, | |
1308 | { 95744, 30000}, | |
1309 | }; | |
1310 | ||
1311 | struct linear_segments cnr_qpsk_table[] = { | |
1312 | { 2834176, 0}, | |
1313 | { 2683648, 1000}, | |
1314 | { 2536960, 2000}, | |
1315 | { 2391808, 3000}, | |
1316 | { 2133248, 4000}, | |
1317 | { 1906176, 5000}, | |
1318 | { 1666560, 6000}, | |
1319 | { 1422080, 7000}, | |
1320 | { 1189632, 8000}, | |
1321 | { 976384, 9000}, | |
1322 | { 790272, 10000}, | |
1323 | { 633344, 11000}, | |
1324 | { 505600, 12000}, | |
1325 | { 402944, 13000}, | |
1326 | { 320768, 14000}, | |
1327 | { 255488, 15000}, | |
1328 | { 204032, 16000}, | |
1329 | { 163072, 17000}, | |
1330 | { 130304, 18000}, | |
1331 | { 105216, 19000}, | |
1332 | { 83456, 20000}, | |
1333 | { 65024, 21000}, | |
1334 | { 52480, 22000}, | |
1335 | { 42752, 23000}, | |
1336 | { 34560, 24000}, | |
1337 | { 27136, 25000}, | |
1338 | { 22016, 26000}, | |
1339 | { 18432, 27000}, | |
1340 | { 15616, 28000}, | |
1341 | { 13312, 29000}, | |
1342 | { 11520, 30000}, | |
1343 | }; | |
1344 | ||
1345 | static u32 interpolate_value(u32 value, struct linear_segments *segments, | |
1346 | unsigned len) | |
1347 | { | |
1348 | u64 tmp64; | |
1349 | u32 dx, dy; | |
1350 | int i, ret; | |
1351 | ||
1352 | if (value >= segments[0].x) | |
1353 | return segments[0].y; | |
1354 | if (value < segments[len-1].x) | |
1355 | return segments[len-1].y; | |
1356 | ||
1357 | for (i = 1; i < len - 1; i++) { | |
1358 | /* If value is identical, no need to interpolate */ | |
1359 | if (value == segments[i].x) | |
1360 | return segments[i].y; | |
1361 | if (value > segments[i].x) | |
1362 | break; | |
1363 | } | |
1364 | ||
1365 | /* Linear interpolation between the two (x,y) points */ | |
1366 | dy = segments[i].y - segments[i - 1].y; | |
1367 | dx = segments[i - 1].x - segments[i].x; | |
1368 | tmp64 = value - segments[i].x; | |
1369 | tmp64 *= dy; | |
1370 | do_div(tmp64, dx); | |
1371 | ret = segments[i].y - tmp64; | |
1372 | ||
1373 | return ret; | |
1374 | } | |
1375 | ||
1376 | static int mb86a20s_get_main_CNR(struct dvb_frontend *fe) | |
1377 | { | |
1378 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1379 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1380 | u32 cnr_linear, cnr; | |
1381 | int rc, val; | |
1382 | ||
1383 | /* Check if CNR is available */ | |
1384 | rc = mb86a20s_readreg(state, 0x45); | |
1385 | if (rc < 0) | |
1386 | return rc; | |
1387 | ||
1388 | if (!(rc & 0x40)) { | |
1389 | dev_info(&state->i2c->dev, "%s: CNR is not available yet.\n", | |
1390 | __func__); | |
1391 | return -EBUSY; | |
1392 | } | |
1393 | val = rc; | |
1394 | ||
1395 | rc = mb86a20s_readreg(state, 0x46); | |
1396 | if (rc < 0) | |
1397 | return rc; | |
1398 | cnr_linear = rc << 8; | |
1399 | ||
1400 | rc = mb86a20s_readreg(state, 0x46); | |
1401 | if (rc < 0) | |
1402 | return rc; | |
1403 | cnr_linear |= rc; | |
1404 | ||
1405 | cnr = interpolate_value(cnr_linear, | |
1406 | cnr_to_db_table, ARRAY_SIZE(cnr_to_db_table)); | |
1407 | ||
1408 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; | |
1409 | c->cnr.stat[0].svalue = cnr; | |
1410 | ||
1411 | dev_dbg(&state->i2c->dev, "%s: CNR is %d.%03d dB (%d)\n", | |
1412 | __func__, cnr / 1000, cnr % 1000, cnr_linear); | |
1413 | ||
1414 | /* CNR counter reset */ | |
1415 | rc = mb86a20s_writereg(state, 0x45, val | 0x10); | |
1416 | if (rc < 0) | |
1417 | return rc; | |
1418 | rc = mb86a20s_writereg(state, 0x45, val & 0x6f); | |
1419 | ||
1420 | return rc; | |
1421 | } | |
1422 | ||
593ae89a | 1423 | static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe) |
25188bd0 MCC |
1424 | { |
1425 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1426 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1427 | u32 mer, cnr; | |
1428 | int rc, val, i; | |
1429 | struct linear_segments *segs; | |
1430 | unsigned segs_len; | |
1431 | ||
1432 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
1433 | ||
1434 | /* Check if the measures are already available */ | |
1435 | rc = mb86a20s_writereg(state, 0x50, 0x5b); | |
1436 | if (rc < 0) | |
1437 | return rc; | |
1438 | rc = mb86a20s_readreg(state, 0x51); | |
1439 | if (rc < 0) | |
1440 | return rc; | |
1441 | ||
1442 | /* Check if data is available */ | |
1443 | if (!(rc & 0x01)) { | |
1444 | dev_info(&state->i2c->dev, | |
1445 | "%s: MER measures aren't available yet.\n", __func__); | |
1446 | return -EBUSY; | |
1447 | } | |
1448 | ||
1449 | /* Read all layers */ | |
1450 | for (i = 0; i < 3; i++) { | |
1451 | if (!(c->isdbt_layer_enabled & (1 << i))) { | |
1452 | c->cnr.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1453 | continue; | |
1454 | } | |
1455 | ||
1456 | rc = mb86a20s_writereg(state, 0x50, 0x52 + i * 3); | |
1457 | if (rc < 0) | |
1458 | return rc; | |
1459 | rc = mb86a20s_readreg(state, 0x51); | |
1460 | if (rc < 0) | |
1461 | return rc; | |
1462 | mer = rc << 16; | |
1463 | rc = mb86a20s_writereg(state, 0x50, 0x53 + i * 3); | |
1464 | if (rc < 0) | |
1465 | return rc; | |
1466 | rc = mb86a20s_readreg(state, 0x51); | |
1467 | if (rc < 0) | |
1468 | return rc; | |
1469 | mer |= rc << 8; | |
1470 | rc = mb86a20s_writereg(state, 0x50, 0x54 + i * 3); | |
1471 | if (rc < 0) | |
1472 | return rc; | |
1473 | rc = mb86a20s_readreg(state, 0x51); | |
1474 | if (rc < 0) | |
1475 | return rc; | |
1476 | mer |= rc; | |
1477 | ||
1478 | switch (c->layer[i].modulation) { | |
1479 | case DQPSK: | |
1480 | case QPSK: | |
1481 | segs = cnr_qpsk_table; | |
1482 | segs_len = ARRAY_SIZE(cnr_qpsk_table); | |
1483 | break; | |
1484 | case QAM_16: | |
1485 | segs = cnr_16qam_table; | |
1486 | segs_len = ARRAY_SIZE(cnr_16qam_table); | |
1487 | break; | |
1488 | default: | |
1489 | case QAM_64: | |
1490 | segs = cnr_64qam_table; | |
1491 | segs_len = ARRAY_SIZE(cnr_64qam_table); | |
1492 | break; | |
1493 | } | |
1494 | cnr = interpolate_value(mer, segs, segs_len); | |
1495 | ||
1496 | c->cnr.stat[1 + i].scale = FE_SCALE_DECIBEL; | |
1497 | c->cnr.stat[1 + i].svalue = cnr; | |
1498 | ||
1499 | dev_dbg(&state->i2c->dev, | |
1500 | "%s: CNR for layer %c is %d.%03d dB (MER = %d).\n", | |
1501 | __func__, 'A' + i, cnr / 1000, cnr % 1000, mer); | |
1502 | ||
1503 | } | |
1504 | ||
1505 | /* Start a new MER measurement */ | |
1506 | /* MER counter reset */ | |
1507 | rc = mb86a20s_writereg(state, 0x50, 0x50); | |
1508 | if (rc < 0) | |
1509 | return rc; | |
1510 | rc = mb86a20s_readreg(state, 0x51); | |
1511 | if (rc < 0) | |
1512 | return rc; | |
1513 | val = rc; | |
1514 | ||
1515 | rc = mb86a20s_writereg(state, 0x51, val | 0x01); | |
1516 | if (rc < 0) | |
1517 | return rc; | |
1518 | rc = mb86a20s_writereg(state, 0x51, val & 0x06); | |
1519 | if (rc < 0) | |
1520 | return rc; | |
1521 | ||
1522 | return 0; | |
1523 | } | |
1524 | ||
09b6d21e MCC |
1525 | static void mb86a20s_stats_not_ready(struct dvb_frontend *fe) |
1526 | { | |
1527 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1528 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1529 | int i; | |
1530 | ||
1531 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); | |
a77cfcac | 1532 | |
09b6d21e MCC |
1533 | /* Fill the length of each status counter */ |
1534 | ||
1535 | /* Only global stats */ | |
1536 | c->strength.len = 1; | |
1537 | ||
1538 | /* Per-layer stats - 3 layers + global */ | |
1539 | c->cnr.len = 4; | |
1540 | c->pre_bit_error.len = 4; | |
1541 | c->pre_bit_count.len = 4; | |
d9b6f08a MCC |
1542 | c->post_bit_error.len = 4; |
1543 | c->post_bit_count.len = 4; | |
09b6d21e MCC |
1544 | c->block_error.len = 4; |
1545 | c->block_count.len = 4; | |
1546 | ||
1547 | /* Signal is always available */ | |
1548 | c->strength.stat[0].scale = FE_SCALE_RELATIVE; | |
1549 | c->strength.stat[0].uvalue = 0; | |
1550 | ||
1551 | /* Put all of them at FE_SCALE_NOT_AVAILABLE */ | |
1552 | for (i = 0; i < 4; i++) { | |
1553 | c->cnr.stat[i].scale = FE_SCALE_NOT_AVAILABLE; | |
1554 | c->pre_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; | |
1555 | c->pre_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; | |
d9b6f08a MCC |
1556 | c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
1557 | c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; | |
09b6d21e MCC |
1558 | c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
1559 | c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; | |
1560 | } | |
b9ede79a MCC |
1561 | } |
1562 | ||
149d518a MCC |
1563 | static int mb86a20s_get_stats(struct dvb_frontend *fe) |
1564 | { | |
1565 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1566 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1567 | int rc = 0, i; | |
1568 | u32 bit_error = 0, bit_count = 0; | |
1569 | u32 t_pre_bit_error = 0, t_pre_bit_count = 0; | |
d9b6f08a | 1570 | u32 t_post_bit_error = 0, t_post_bit_count = 0; |
593ae89a MCC |
1571 | u32 block_error = 0, block_count = 0; |
1572 | u32 t_block_error = 0, t_block_count = 0; | |
d9b6f08a MCC |
1573 | int active_layers = 0, pre_ber_layers = 0, post_ber_layers = 0; |
1574 | int per_layers = 0; | |
149d518a | 1575 | |
25188bd0 MCC |
1576 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
1577 | ||
1578 | mb86a20s_get_main_CNR(fe); | |
1579 | ||
149d518a | 1580 | /* Get per-layer stats */ |
593ae89a | 1581 | mb86a20s_get_blk_error_layer_CNR(fe); |
25188bd0 | 1582 | |
149d518a MCC |
1583 | for (i = 0; i < 3; i++) { |
1584 | if (c->isdbt_layer_enabled & (1 << i)) { | |
1585 | /* Layer is active and has rc segments */ | |
1586 | active_layers++; | |
1587 | ||
149d518a | 1588 | /* Handle BER before vterbi */ |
ad0abbf1 MCC |
1589 | rc = mb86a20s_get_pre_ber(fe, i, |
1590 | &bit_error, &bit_count); | |
149d518a MCC |
1591 | if (rc >= 0) { |
1592 | c->pre_bit_error.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1593 | c->pre_bit_error.stat[1 + i].uvalue += bit_error; | |
1594 | c->pre_bit_count.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1595 | c->pre_bit_count.stat[1 + i].uvalue += bit_count; | |
1596 | } else if (rc != -EBUSY) { | |
1597 | /* | |
1598 | * If an I/O error happened, | |
1599 | * measures are now unavailable | |
1600 | */ | |
1601 | c->pre_bit_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1602 | c->pre_bit_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1603 | dev_err(&state->i2c->dev, | |
1604 | "%s: Can't get BER for layer %c (error %d).\n", | |
1605 | __func__, 'A' + i, rc); | |
1606 | } | |
149d518a | 1607 | if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE) |
d9b6f08a MCC |
1608 | pre_ber_layers++; |
1609 | ||
1610 | /* Handle BER post vterbi */ | |
1611 | rc = mb86a20s_get_post_ber(fe, i, | |
1612 | &bit_error, &bit_count); | |
1613 | if (rc >= 0) { | |
1614 | c->post_bit_error.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1615 | c->post_bit_error.stat[1 + i].uvalue += bit_error; | |
1616 | c->post_bit_count.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1617 | c->post_bit_count.stat[1 + i].uvalue += bit_count; | |
1618 | } else if (rc != -EBUSY) { | |
1619 | /* | |
1620 | * If an I/O error happened, | |
1621 | * measures are now unavailable | |
1622 | */ | |
1623 | c->post_bit_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1624 | c->post_bit_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1625 | dev_err(&state->i2c->dev, | |
1626 | "%s: Can't get BER for layer %c (error %d).\n", | |
1627 | __func__, 'A' + i, rc); | |
1628 | } | |
d9b6f08a MCC |
1629 | if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE) |
1630 | post_ber_layers++; | |
149d518a | 1631 | |
593ae89a MCC |
1632 | /* Handle Block errors for PER/UCB reports */ |
1633 | rc = mb86a20s_get_blk_error(fe, i, | |
1634 | &block_error, | |
1635 | &block_count); | |
1636 | if (rc >= 0) { | |
1637 | c->block_error.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1638 | c->block_error.stat[1 + i].uvalue += block_error; | |
1639 | c->block_count.stat[1 + i].scale = FE_SCALE_COUNTER; | |
1640 | c->block_count.stat[1 + i].uvalue += block_count; | |
1641 | } else if (rc != -EBUSY) { | |
1642 | /* | |
1643 | * If an I/O error happened, | |
1644 | * measures are now unavailable | |
1645 | */ | |
1646 | c->block_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1647 | c->block_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE; | |
1648 | dev_err(&state->i2c->dev, | |
1649 | "%s: Can't get PER for layer %c (error %d).\n", | |
1650 | __func__, 'A' + i, rc); | |
1651 | ||
1652 | } | |
593ae89a MCC |
1653 | if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE) |
1654 | per_layers++; | |
1655 | ||
d9b6f08a | 1656 | /* Update total preBER */ |
149d518a MCC |
1657 | t_pre_bit_error += c->pre_bit_error.stat[1 + i].uvalue; |
1658 | t_pre_bit_count += c->pre_bit_count.stat[1 + i].uvalue; | |
593ae89a | 1659 | |
d9b6f08a MCC |
1660 | /* Update total postBER */ |
1661 | t_post_bit_error += c->post_bit_error.stat[1 + i].uvalue; | |
1662 | t_post_bit_count += c->post_bit_count.stat[1 + i].uvalue; | |
1663 | ||
593ae89a MCC |
1664 | /* Update total PER */ |
1665 | t_block_error += c->block_error.stat[1 + i].uvalue; | |
1666 | t_block_count += c->block_count.stat[1 + i].uvalue; | |
149d518a MCC |
1667 | } |
1668 | } | |
1669 | ||
1670 | /* | |
1671 | * Start showing global count if at least one error count is | |
1672 | * available. | |
1673 | */ | |
d9b6f08a | 1674 | if (pre_ber_layers) { |
149d518a MCC |
1675 | /* |
1676 | * At least one per-layer BER measure was read. We can now | |
1677 | * calculate the total BER | |
1678 | * | |
1679 | * Total Bit Error/Count is calculated as the sum of the | |
1680 | * bit errors on all active layers. | |
1681 | */ | |
1682 | c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; | |
1683 | c->pre_bit_error.stat[0].uvalue = t_pre_bit_error; | |
1684 | c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
1685 | c->pre_bit_count.stat[0].uvalue = t_pre_bit_count; | |
f67102c4 MCC |
1686 | } else { |
1687 | c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
1688 | c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
149d518a MCC |
1689 | } |
1690 | ||
d9b6f08a MCC |
1691 | /* |
1692 | * Start showing global count if at least one error count is | |
1693 | * available. | |
1694 | */ | |
1695 | if (post_ber_layers) { | |
1696 | /* | |
1697 | * At least one per-layer BER measure was read. We can now | |
1698 | * calculate the total BER | |
1699 | * | |
1700 | * Total Bit Error/Count is calculated as the sum of the | |
1701 | * bit errors on all active layers. | |
1702 | */ | |
1703 | c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; | |
1704 | c->post_bit_error.stat[0].uvalue = t_post_bit_error; | |
1705 | c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
1706 | c->post_bit_count.stat[0].uvalue = t_post_bit_count; | |
f67102c4 MCC |
1707 | } else { |
1708 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
1709 | c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
d9b6f08a MCC |
1710 | } |
1711 | ||
593ae89a MCC |
1712 | if (per_layers) { |
1713 | /* | |
1714 | * At least one per-layer UCB measure was read. We can now | |
1715 | * calculate the total UCB | |
1716 | * | |
1717 | * Total block Error/Count is calculated as the sum of the | |
1718 | * block errors on all active layers. | |
1719 | */ | |
1720 | c->block_error.stat[0].scale = FE_SCALE_COUNTER; | |
1721 | c->block_error.stat[0].uvalue = t_block_error; | |
1722 | c->block_count.stat[0].scale = FE_SCALE_COUNTER; | |
1723 | c->block_count.stat[0].uvalue = t_block_count; | |
f67102c4 MCC |
1724 | } else { |
1725 | c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
1726 | c->block_count.stat[0].scale = FE_SCALE_COUNTER; | |
593ae89a MCC |
1727 | } |
1728 | ||
149d518a MCC |
1729 | return rc; |
1730 | } | |
09b6d21e MCC |
1731 | |
1732 | /* | |
1733 | * The functions below are called via DVB callbacks, so they need to | |
1734 | * properly use the I2C gate control | |
1735 | */ | |
1736 | ||
dd4493ef MCC |
1737 | static int mb86a20s_initfe(struct dvb_frontend *fe) |
1738 | { | |
1739 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1740 | int rc; | |
1741 | u8 regD5 = 1; | |
1742 | ||
f66d81b5 | 1743 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
dd4493ef MCC |
1744 | |
1745 | if (fe->ops.i2c_gate_ctrl) | |
1746 | fe->ops.i2c_gate_ctrl(fe, 0); | |
1747 | ||
1748 | /* Initialize the frontend */ | |
1749 | rc = mb86a20s_writeregdata(state, mb86a20s_init); | |
1750 | if (rc < 0) | |
1751 | goto err; | |
1752 | ||
1753 | if (!state->config->is_serial) { | |
1754 | regD5 &= ~1; | |
1755 | ||
1756 | rc = mb86a20s_writereg(state, 0x50, 0xd5); | |
1757 | if (rc < 0) | |
1758 | goto err; | |
1759 | rc = mb86a20s_writereg(state, 0x51, regD5); | |
1760 | if (rc < 0) | |
1761 | goto err; | |
1762 | } | |
1763 | ||
1764 | err: | |
1765 | if (fe->ops.i2c_gate_ctrl) | |
1766 | fe->ops.i2c_gate_ctrl(fe, 1); | |
1767 | ||
1768 | if (rc < 0) { | |
1769 | state->need_init = true; | |
f66d81b5 MCC |
1770 | dev_info(&state->i2c->dev, |
1771 | "mb86a20s: Init failed. Will try again later\n"); | |
dd4493ef MCC |
1772 | } else { |
1773 | state->need_init = false; | |
f66d81b5 | 1774 | dev_dbg(&state->i2c->dev, "Initialization succeeded.\n"); |
dd4493ef MCC |
1775 | } |
1776 | return rc; | |
1777 | } | |
1778 | ||
1779 | static int mb86a20s_set_frontend(struct dvb_frontend *fe) | |
1780 | { | |
1781 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1782 | int rc; | |
1783 | #if 0 | |
1784 | /* | |
1785 | * FIXME: Properly implement the set frontend properties | |
1786 | */ | |
1787 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1788 | #endif | |
f66d81b5 | 1789 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
dd4493ef MCC |
1790 | |
1791 | /* | |
1792 | * Gate should already be opened, but it doesn't hurt to | |
1793 | * double-check | |
1794 | */ | |
1795 | if (fe->ops.i2c_gate_ctrl) | |
1796 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dd4493ef MCC |
1797 | fe->ops.tuner_ops.set_params(fe); |
1798 | ||
1799 | /* | |
1800 | * Make it more reliable: if, for some reason, the initial | |
1801 | * device initialization doesn't happen, initialize it when | |
1802 | * a SBTVD parameters are adjusted. | |
1803 | * | |
1804 | * Unfortunately, due to a hard to track bug at tda829x/tda18271, | |
1805 | * the agc callback logic is not called during DVB attach time, | |
1806 | * causing mb86a20s to not be initialized with Kworld SBTVD. | |
1807 | * So, this hack is needed, in order to make Kworld SBTVD to work. | |
1808 | */ | |
1809 | if (state->need_init) | |
1810 | mb86a20s_initfe(fe); | |
1811 | ||
1812 | if (fe->ops.i2c_gate_ctrl) | |
1813 | fe->ops.i2c_gate_ctrl(fe, 0); | |
d01a8ee3 | 1814 | |
dd4493ef | 1815 | rc = mb86a20s_writeregdata(state, mb86a20s_reset_reception); |
09b6d21e | 1816 | mb86a20s_reset_counters(fe); |
d01a8ee3 | 1817 | |
dd4493ef MCC |
1818 | if (fe->ops.i2c_gate_ctrl) |
1819 | fe->ops.i2c_gate_ctrl(fe, 1); | |
1820 | ||
1821 | return rc; | |
1822 | } | |
1823 | ||
09b6d21e MCC |
1824 | static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe, |
1825 | fe_status_t *status) | |
d36e418a | 1826 | { |
09b6d21e MCC |
1827 | struct mb86a20s_state *state = fe->demodulator_priv; |
1828 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1829 | int rc; | |
d36e418a | 1830 | |
09b6d21e | 1831 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
d36e418a MCC |
1832 | |
1833 | if (fe->ops.i2c_gate_ctrl) | |
1834 | fe->ops.i2c_gate_ctrl(fe, 0); | |
1835 | ||
09b6d21e MCC |
1836 | /* Get lock */ |
1837 | rc = mb86a20s_read_status(fe, status); | |
1838 | if (!(*status & FE_HAS_LOCK)) { | |
1839 | mb86a20s_stats_not_ready(fe); | |
1840 | mb86a20s_reset_frontend_cache(fe); | |
1841 | } | |
149d518a MCC |
1842 | if (rc < 0) { |
1843 | dev_err(&state->i2c->dev, | |
1844 | "%s: Can't read frontend lock status\n", __func__); | |
09b6d21e | 1845 | goto error; |
149d518a | 1846 | } |
09b6d21e MCC |
1847 | |
1848 | /* Get signal strength */ | |
1849 | rc = mb86a20s_read_signal_strength(fe); | |
1850 | if (rc < 0) { | |
149d518a MCC |
1851 | dev_err(&state->i2c->dev, |
1852 | "%s: Can't reset VBER registers.\n", __func__); | |
09b6d21e MCC |
1853 | mb86a20s_stats_not_ready(fe); |
1854 | mb86a20s_reset_frontend_cache(fe); | |
149d518a MCC |
1855 | |
1856 | rc = 0; /* Status is OK */ | |
09b6d21e MCC |
1857 | goto error; |
1858 | } | |
1859 | /* Fill signal strength */ | |
1860 | c->strength.stat[0].uvalue = rc; | |
1861 | ||
1862 | if (*status & FE_HAS_LOCK) { | |
1863 | /* Get TMCC info*/ | |
1864 | rc = mb86a20s_get_frontend(fe); | |
149d518a MCC |
1865 | if (rc < 0) { |
1866 | dev_err(&state->i2c->dev, | |
1867 | "%s: Can't get FE TMCC data.\n", __func__); | |
1868 | rc = 0; /* Status is OK */ | |
1869 | goto error; | |
1870 | } | |
1871 | ||
1872 | /* Get statistics */ | |
1873 | rc = mb86a20s_get_stats(fe); | |
1874 | if (rc < 0 && rc != -EBUSY) { | |
1875 | dev_err(&state->i2c->dev, | |
1876 | "%s: Can't get FE statistics.\n", __func__); | |
1877 | rc = 0; | |
09b6d21e | 1878 | goto error; |
149d518a MCC |
1879 | } |
1880 | rc = 0; /* Don't return EBUSY to userspace */ | |
09b6d21e | 1881 | } |
149d518a | 1882 | goto ok; |
09b6d21e | 1883 | |
149d518a | 1884 | error: |
09b6d21e | 1885 | mb86a20s_stats_not_ready(fe); |
d36e418a | 1886 | |
149d518a | 1887 | ok: |
d36e418a MCC |
1888 | if (fe->ops.i2c_gate_ctrl) |
1889 | fe->ops.i2c_gate_ctrl(fe, 1); | |
149d518a | 1890 | |
09b6d21e MCC |
1891 | return rc; |
1892 | } | |
1893 | ||
1894 | static int mb86a20s_read_signal_strength_from_cache(struct dvb_frontend *fe, | |
1895 | u16 *strength) | |
1896 | { | |
1897 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1898 | ||
1899 | ||
1900 | *strength = c->strength.stat[0].uvalue; | |
d36e418a | 1901 | |
09b6d21e | 1902 | return 0; |
d36e418a MCC |
1903 | } |
1904 | ||
09b6d21e MCC |
1905 | static int mb86a20s_get_frontend_dummy(struct dvb_frontend *fe) |
1906 | { | |
1907 | /* | |
1908 | * get_frontend is now handled together with other stats | |
1909 | * retrival, when read_status() is called, as some statistics | |
1910 | * will depend on the layers detection. | |
1911 | */ | |
1912 | return 0; | |
1913 | }; | |
1914 | ||
b9ede79a | 1915 | static int mb86a20s_tune(struct dvb_frontend *fe, |
7e072221 | 1916 | bool re_tune, |
b9ede79a MCC |
1917 | unsigned int mode_flags, |
1918 | unsigned int *delay, | |
1919 | fe_status_t *status) | |
1920 | { | |
f66d81b5 | 1921 | struct mb86a20s_state *state = fe->demodulator_priv; |
b9ede79a MCC |
1922 | int rc = 0; |
1923 | ||
f66d81b5 | 1924 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
b9ede79a | 1925 | |
7e072221 | 1926 | if (re_tune) |
2d76e22b | 1927 | rc = mb86a20s_set_frontend(fe); |
b9ede79a MCC |
1928 | |
1929 | if (!(mode_flags & FE_TUNE_MODE_ONESHOT)) | |
09b6d21e | 1930 | mb86a20s_read_status_and_stats(fe, status); |
b9ede79a MCC |
1931 | |
1932 | return rc; | |
1933 | } | |
1934 | ||
1935 | static void mb86a20s_release(struct dvb_frontend *fe) | |
1936 | { | |
1937 | struct mb86a20s_state *state = fe->demodulator_priv; | |
1938 | ||
f66d81b5 | 1939 | dev_dbg(&state->i2c->dev, "%s called.\n", __func__); |
b9ede79a MCC |
1940 | |
1941 | kfree(state); | |
1942 | } | |
1943 | ||
1944 | static struct dvb_frontend_ops mb86a20s_ops; | |
1945 | ||
1946 | struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config, | |
1947 | struct i2c_adapter *i2c) | |
1948 | { | |
f66d81b5 | 1949 | struct mb86a20s_state *state; |
b9ede79a MCC |
1950 | u8 rev; |
1951 | ||
f167e302 MCC |
1952 | dev_dbg(&i2c->dev, "%s called.\n", __func__); |
1953 | ||
b9ede79a | 1954 | /* allocate memory for the internal state */ |
f66d81b5 | 1955 | state = kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL); |
b9ede79a | 1956 | if (state == NULL) { |
f167e302 | 1957 | dev_err(&i2c->dev, |
f66d81b5 | 1958 | "%s: unable to allocate memory for state\n", __func__); |
b9ede79a MCC |
1959 | goto error; |
1960 | } | |
1961 | ||
1962 | /* setup the state */ | |
1963 | state->config = config; | |
1964 | state->i2c = i2c; | |
1965 | ||
1966 | /* create dvb_frontend */ | |
1967 | memcpy(&state->frontend.ops, &mb86a20s_ops, | |
1968 | sizeof(struct dvb_frontend_ops)); | |
1969 | state->frontend.demodulator_priv = state; | |
1970 | ||
1971 | /* Check if it is a mb86a20s frontend */ | |
1972 | rev = mb86a20s_readreg(state, 0); | |
1973 | ||
1974 | if (rev == 0x13) { | |
f167e302 | 1975 | dev_info(&i2c->dev, |
f66d81b5 | 1976 | "Detected a Fujitsu mb86a20s frontend\n"); |
b9ede79a | 1977 | } else { |
f167e302 | 1978 | dev_dbg(&i2c->dev, |
f66d81b5 | 1979 | "Frontend revision %d is unknown - aborting.\n", |
b9ede79a MCC |
1980 | rev); |
1981 | goto error; | |
1982 | } | |
1983 | ||
1984 | return &state->frontend; | |
1985 | ||
1986 | error: | |
1987 | kfree(state); | |
1988 | return NULL; | |
1989 | } | |
1990 | EXPORT_SYMBOL(mb86a20s_attach); | |
1991 | ||
1992 | static struct dvb_frontend_ops mb86a20s_ops = { | |
2d76e22b | 1993 | .delsys = { SYS_ISDBT }, |
b9ede79a MCC |
1994 | /* Use dib8000 values per default */ |
1995 | .info = { | |
1996 | .name = "Fujitsu mb86A20s", | |
b9ede79a MCC |
1997 | .caps = FE_CAN_INVERSION_AUTO | FE_CAN_RECOVER | |
1998 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
1999 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
2000 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | | |
2001 | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_QAM_AUTO | | |
2002 | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO, | |
2003 | /* Actually, those values depend on the used tuner */ | |
2004 | .frequency_min = 45000000, | |
2005 | .frequency_max = 864000000, | |
2006 | .frequency_stepsize = 62500, | |
2007 | }, | |
2008 | ||
2009 | .release = mb86a20s_release, | |
2010 | ||
2011 | .init = mb86a20s_initfe, | |
2d76e22b | 2012 | .set_frontend = mb86a20s_set_frontend, |
09b6d21e MCC |
2013 | .get_frontend = mb86a20s_get_frontend_dummy, |
2014 | .read_status = mb86a20s_read_status_and_stats, | |
2015 | .read_signal_strength = mb86a20s_read_signal_strength_from_cache, | |
b9ede79a MCC |
2016 | .tune = mb86a20s_tune, |
2017 | }; | |
2018 | ||
2019 | MODULE_DESCRIPTION("DVB Frontend module for Fujitsu mb86A20s hardware"); | |
2020 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); | |
2021 | MODULE_LICENSE("GPL"); |