Commit | Line | Data |
---|---|---|
d9cb41af AP |
1 | /* |
2 | * FCI FC2580 silicon tuner driver | |
3 | * | |
4 | * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
20 | ||
21 | #include "fc2580_priv.h" | |
22 | ||
23 | /* | |
24 | * TODO: | |
25 | * I2C write and read works only for one single register. Multiple registers | |
26 | * could not be accessed using normal register address auto-increment. | |
27 | * There could be (very likely) register to change that behavior.... | |
d9cb41af AP |
28 | */ |
29 | ||
f2ea86de AP |
30 | /* write single register conditionally only when value differs from 0xff |
31 | * XXX: This is special routine meant only for writing fc2580_freq_regs_lut[] | |
32 | * values. Do not use for the other purposes. */ | |
154cdfb0 | 33 | static int fc2580_wr_reg_ff(struct fc2580_dev *dev, u8 reg, u8 val) |
f2ea86de AP |
34 | { |
35 | if (val == 0xff) | |
36 | return 0; | |
37 | else | |
35fe4c65 | 38 | return regmap_write(dev->regmap, reg, val); |
f2ea86de AP |
39 | } |
40 | ||
252fad1c | 41 | static int fc2580_set_params(struct fc2580_dev *dev) |
d9cb41af | 42 | { |
154cdfb0 | 43 | struct i2c_client *client = dev->client; |
46de7615 AP |
44 | int ret, i; |
45 | unsigned int uitmp, div_ref, div_ref_val, div_n, k, k_cw, div_out; | |
d9cb41af | 46 | u64 f_vco; |
8b302d43 | 47 | u8 synth_config; |
46de7615 | 48 | unsigned long timeout; |
d9cb41af | 49 | |
252fad1c AP |
50 | if (!dev->active) { |
51 | dev_dbg(&client->dev, "tuner is sleeping\n"); | |
52 | return 0; | |
53 | } | |
d9cb41af | 54 | |
46de7615 AP |
55 | /* |
56 | * Fractional-N synthesizer | |
57 | * | |
58 | * +---------------------------------------+ | |
59 | * v | | |
60 | * Fref +----+ +----+ +-------+ +----+ +------+ +---+ | |
61 | * ------> | /R | --> | PD | --> | VCO | ------> | /2 | --> | /N.F | <-- | K | | |
62 | * +----+ +----+ +-------+ +----+ +------+ +---+ | |
63 | * | | |
64 | * | | |
65 | * v | |
66 | * +-------+ Fout | |
67 | * | /Rout | ------> | |
68 | * +-------+ | |
69 | */ | |
d9cb41af | 70 | for (i = 0; i < ARRAY_SIZE(fc2580_pll_lut); i++) { |
252fad1c | 71 | if (dev->f_frequency <= fc2580_pll_lut[i].freq) |
d9cb41af AP |
72 | break; |
73 | } | |
46de7615 AP |
74 | if (i == ARRAY_SIZE(fc2580_pll_lut)) { |
75 | ret = -EINVAL; | |
d9cb41af | 76 | goto err; |
46de7615 | 77 | } |
d9cb41af | 78 | |
46de7615 | 79 | #define DIV_PRE_N 2 |
154cdfb0 | 80 | #define F_REF dev->clk |
46de7615 | 81 | div_out = fc2580_pll_lut[i].div_out; |
252fad1c | 82 | f_vco = (u64) dev->f_frequency * div_out; |
46de7615 AP |
83 | synth_config = fc2580_pll_lut[i].band; |
84 | if (f_vco < 2600000000ULL) | |
85 | synth_config |= 0x06; | |
d9cb41af | 86 | else |
46de7615 AP |
87 | synth_config |= 0x0e; |
88 | ||
89 | /* select reference divider R (keep PLL div N in valid range) */ | |
90 | #define DIV_N_MIN 76 | |
91 | if (f_vco >= div_u64((u64) DIV_PRE_N * DIV_N_MIN * F_REF, 1)) { | |
92 | div_ref = 1; | |
93 | div_ref_val = 0x00; | |
94 | } else if (f_vco >= div_u64((u64) DIV_PRE_N * DIV_N_MIN * F_REF, 2)) { | |
95 | div_ref = 2; | |
96 | div_ref_val = 0x10; | |
d9cb41af | 97 | } else { |
46de7615 AP |
98 | div_ref = 4; |
99 | div_ref_val = 0x20; | |
d9cb41af AP |
100 | } |
101 | ||
46de7615 AP |
102 | /* calculate PLL integer and fractional control word */ |
103 | uitmp = DIV_PRE_N * F_REF / div_ref; | |
104 | div_n = div_u64_rem(f_vco, uitmp, &k); | |
105 | k_cw = div_u64((u64) k * 0x100000, uitmp); | |
106 | ||
107 | dev_dbg(&client->dev, | |
252fad1c AP |
108 | "frequency=%u bandwidth=%u f_vco=%llu F_REF=%u div_ref=%u div_n=%u k=%u div_out=%u k_cw=%0x\n", |
109 | dev->f_frequency, dev->f_bandwidth, f_vco, F_REF, div_ref, | |
110 | div_n, k, div_out, k_cw); | |
d9cb41af | 111 | |
35fe4c65 AP |
112 | ret = regmap_write(dev->regmap, 0x02, synth_config); |
113 | if (ret) | |
d9cb41af AP |
114 | goto err; |
115 | ||
35fe4c65 AP |
116 | ret = regmap_write(dev->regmap, 0x18, div_ref_val << 0 | k_cw >> 16); |
117 | if (ret) | |
d9cb41af AP |
118 | goto err; |
119 | ||
35fe4c65 AP |
120 | ret = regmap_write(dev->regmap, 0x1a, (k_cw >> 8) & 0xff); |
121 | if (ret) | |
d9cb41af AP |
122 | goto err; |
123 | ||
35fe4c65 AP |
124 | ret = regmap_write(dev->regmap, 0x1b, (k_cw >> 0) & 0xff); |
125 | if (ret) | |
d9cb41af AP |
126 | goto err; |
127 | ||
35fe4c65 AP |
128 | ret = regmap_write(dev->regmap, 0x1c, div_n); |
129 | if (ret) | |
46de7615 | 130 | goto err; |
d9cb41af AP |
131 | |
132 | /* registers */ | |
133 | for (i = 0; i < ARRAY_SIZE(fc2580_freq_regs_lut); i++) { | |
252fad1c | 134 | if (dev->f_frequency <= fc2580_freq_regs_lut[i].freq) |
d9cb41af AP |
135 | break; |
136 | } | |
46de7615 AP |
137 | if (i == ARRAY_SIZE(fc2580_freq_regs_lut)) { |
138 | ret = -EINVAL; | |
d9cb41af | 139 | goto err; |
46de7615 | 140 | } |
d9cb41af | 141 | |
154cdfb0 | 142 | ret = fc2580_wr_reg_ff(dev, 0x25, fc2580_freq_regs_lut[i].r25_val); |
35fe4c65 | 143 | if (ret) |
d9cb41af AP |
144 | goto err; |
145 | ||
154cdfb0 | 146 | ret = fc2580_wr_reg_ff(dev, 0x27, fc2580_freq_regs_lut[i].r27_val); |
35fe4c65 | 147 | if (ret) |
d9cb41af AP |
148 | goto err; |
149 | ||
154cdfb0 | 150 | ret = fc2580_wr_reg_ff(dev, 0x28, fc2580_freq_regs_lut[i].r28_val); |
35fe4c65 | 151 | if (ret) |
d9cb41af AP |
152 | goto err; |
153 | ||
154cdfb0 | 154 | ret = fc2580_wr_reg_ff(dev, 0x29, fc2580_freq_regs_lut[i].r29_val); |
35fe4c65 | 155 | if (ret) |
d9cb41af AP |
156 | goto err; |
157 | ||
154cdfb0 | 158 | ret = fc2580_wr_reg_ff(dev, 0x2b, fc2580_freq_regs_lut[i].r2b_val); |
35fe4c65 | 159 | if (ret) |
d9cb41af AP |
160 | goto err; |
161 | ||
154cdfb0 | 162 | ret = fc2580_wr_reg_ff(dev, 0x2c, fc2580_freq_regs_lut[i].r2c_val); |
35fe4c65 | 163 | if (ret) |
d9cb41af AP |
164 | goto err; |
165 | ||
154cdfb0 | 166 | ret = fc2580_wr_reg_ff(dev, 0x2d, fc2580_freq_regs_lut[i].r2d_val); |
35fe4c65 | 167 | if (ret) |
d9cb41af AP |
168 | goto err; |
169 | ||
154cdfb0 | 170 | ret = fc2580_wr_reg_ff(dev, 0x30, fc2580_freq_regs_lut[i].r30_val); |
35fe4c65 | 171 | if (ret) |
d9cb41af AP |
172 | goto err; |
173 | ||
154cdfb0 | 174 | ret = fc2580_wr_reg_ff(dev, 0x44, fc2580_freq_regs_lut[i].r44_val); |
35fe4c65 | 175 | if (ret) |
d9cb41af AP |
176 | goto err; |
177 | ||
154cdfb0 | 178 | ret = fc2580_wr_reg_ff(dev, 0x50, fc2580_freq_regs_lut[i].r50_val); |
35fe4c65 | 179 | if (ret) |
d9cb41af AP |
180 | goto err; |
181 | ||
154cdfb0 | 182 | ret = fc2580_wr_reg_ff(dev, 0x53, fc2580_freq_regs_lut[i].r53_val); |
35fe4c65 | 183 | if (ret) |
d9cb41af AP |
184 | goto err; |
185 | ||
154cdfb0 | 186 | ret = fc2580_wr_reg_ff(dev, 0x5f, fc2580_freq_regs_lut[i].r5f_val); |
35fe4c65 | 187 | if (ret) |
d9cb41af AP |
188 | goto err; |
189 | ||
154cdfb0 | 190 | ret = fc2580_wr_reg_ff(dev, 0x61, fc2580_freq_regs_lut[i].r61_val); |
35fe4c65 | 191 | if (ret) |
d9cb41af AP |
192 | goto err; |
193 | ||
154cdfb0 | 194 | ret = fc2580_wr_reg_ff(dev, 0x62, fc2580_freq_regs_lut[i].r62_val); |
35fe4c65 | 195 | if (ret) |
d9cb41af AP |
196 | goto err; |
197 | ||
154cdfb0 | 198 | ret = fc2580_wr_reg_ff(dev, 0x63, fc2580_freq_regs_lut[i].r63_val); |
35fe4c65 | 199 | if (ret) |
d9cb41af AP |
200 | goto err; |
201 | ||
154cdfb0 | 202 | ret = fc2580_wr_reg_ff(dev, 0x67, fc2580_freq_regs_lut[i].r67_val); |
35fe4c65 | 203 | if (ret) |
d9cb41af AP |
204 | goto err; |
205 | ||
154cdfb0 | 206 | ret = fc2580_wr_reg_ff(dev, 0x68, fc2580_freq_regs_lut[i].r68_val); |
35fe4c65 | 207 | if (ret) |
d9cb41af AP |
208 | goto err; |
209 | ||
154cdfb0 | 210 | ret = fc2580_wr_reg_ff(dev, 0x69, fc2580_freq_regs_lut[i].r69_val); |
35fe4c65 | 211 | if (ret) |
d9cb41af AP |
212 | goto err; |
213 | ||
154cdfb0 | 214 | ret = fc2580_wr_reg_ff(dev, 0x6a, fc2580_freq_regs_lut[i].r6a_val); |
35fe4c65 | 215 | if (ret) |
d9cb41af AP |
216 | goto err; |
217 | ||
154cdfb0 | 218 | ret = fc2580_wr_reg_ff(dev, 0x6b, fc2580_freq_regs_lut[i].r6b_val); |
35fe4c65 | 219 | if (ret) |
d9cb41af AP |
220 | goto err; |
221 | ||
154cdfb0 | 222 | ret = fc2580_wr_reg_ff(dev, 0x6c, fc2580_freq_regs_lut[i].r6c_val); |
35fe4c65 | 223 | if (ret) |
d9cb41af AP |
224 | goto err; |
225 | ||
154cdfb0 | 226 | ret = fc2580_wr_reg_ff(dev, 0x6d, fc2580_freq_regs_lut[i].r6d_val); |
35fe4c65 | 227 | if (ret) |
d9cb41af AP |
228 | goto err; |
229 | ||
154cdfb0 | 230 | ret = fc2580_wr_reg_ff(dev, 0x6e, fc2580_freq_regs_lut[i].r6e_val); |
35fe4c65 | 231 | if (ret) |
d9cb41af AP |
232 | goto err; |
233 | ||
154cdfb0 | 234 | ret = fc2580_wr_reg_ff(dev, 0x6f, fc2580_freq_regs_lut[i].r6f_val); |
35fe4c65 | 235 | if (ret) |
d9cb41af AP |
236 | goto err; |
237 | ||
238 | /* IF filters */ | |
239 | for (i = 0; i < ARRAY_SIZE(fc2580_if_filter_lut); i++) { | |
252fad1c | 240 | if (dev->f_bandwidth <= fc2580_if_filter_lut[i].freq) |
d9cb41af AP |
241 | break; |
242 | } | |
46de7615 AP |
243 | if (i == ARRAY_SIZE(fc2580_if_filter_lut)) { |
244 | ret = -EINVAL; | |
d9cb41af | 245 | goto err; |
46de7615 | 246 | } |
d9cb41af | 247 | |
35fe4c65 AP |
248 | ret = regmap_write(dev->regmap, 0x36, fc2580_if_filter_lut[i].r36_val); |
249 | if (ret) | |
d9cb41af AP |
250 | goto err; |
251 | ||
252fad1c | 252 | uitmp = (unsigned int) 8058000 - (dev->f_bandwidth * 122 / 100 / 2); |
8b302d43 AP |
253 | uitmp = div64_u64((u64) dev->clk * uitmp, 1000000000000ULL); |
254 | ret = regmap_write(dev->regmap, 0x37, uitmp); | |
35fe4c65 | 255 | if (ret) |
d9cb41af AP |
256 | goto err; |
257 | ||
35fe4c65 AP |
258 | ret = regmap_write(dev->regmap, 0x39, fc2580_if_filter_lut[i].r39_val); |
259 | if (ret) | |
d9cb41af AP |
260 | goto err; |
261 | ||
46de7615 AP |
262 | timeout = jiffies + msecs_to_jiffies(30); |
263 | for (uitmp = ~0xc0; !time_after(jiffies, timeout) && uitmp != 0xc0;) { | |
264 | /* trigger filter */ | |
35fe4c65 | 265 | ret = regmap_write(dev->regmap, 0x2e, 0x09); |
46de7615 | 266 | if (ret) |
d9cb41af AP |
267 | goto err; |
268 | ||
46de7615 | 269 | /* locked when [7:6] are set (val: d7 6MHz, d5 7MHz, cd 8MHz) */ |
35fe4c65 | 270 | ret = regmap_read(dev->regmap, 0x2f, &uitmp); |
46de7615 | 271 | if (ret) |
d9cb41af | 272 | goto err; |
35fe4c65 | 273 | uitmp &= 0xc0; |
d9cb41af | 274 | |
35fe4c65 | 275 | ret = regmap_write(dev->regmap, 0x2e, 0x01); |
46de7615 | 276 | if (ret) |
d9cb41af | 277 | goto err; |
d9cb41af | 278 | } |
46de7615 AP |
279 | if (uitmp != 0xc0) |
280 | dev_dbg(&client->dev, "filter did not lock %02x\n", uitmp); | |
d9cb41af | 281 | |
d9cb41af AP |
282 | return 0; |
283 | err: | |
46de7615 | 284 | dev_dbg(&client->dev, "failed=%d\n", ret); |
d9cb41af AP |
285 | return ret; |
286 | } | |
287 | ||
252fad1c | 288 | static int fc2580_init(struct fc2580_dev *dev) |
d9cb41af | 289 | { |
154cdfb0 | 290 | struct i2c_client *client = dev->client; |
d9cb41af AP |
291 | int ret, i; |
292 | ||
154cdfb0 | 293 | dev_dbg(&client->dev, "\n"); |
d9cb41af AP |
294 | |
295 | for (i = 0; i < ARRAY_SIZE(fc2580_init_reg_vals); i++) { | |
35fe4c65 | 296 | ret = regmap_write(dev->regmap, fc2580_init_reg_vals[i].reg, |
d9cb41af | 297 | fc2580_init_reg_vals[i].val); |
35fe4c65 | 298 | if (ret) |
d9cb41af AP |
299 | goto err; |
300 | } | |
301 | ||
252fad1c | 302 | dev->active = true; |
d9cb41af AP |
303 | return 0; |
304 | err: | |
154cdfb0 | 305 | dev_dbg(&client->dev, "failed=%d\n", ret); |
d9cb41af AP |
306 | return ret; |
307 | } | |
308 | ||
252fad1c | 309 | static int fc2580_sleep(struct fc2580_dev *dev) |
d9cb41af | 310 | { |
154cdfb0 | 311 | struct i2c_client *client = dev->client; |
d9cb41af AP |
312 | int ret; |
313 | ||
154cdfb0 | 314 | dev_dbg(&client->dev, "\n"); |
d9cb41af | 315 | |
252fad1c AP |
316 | dev->active = false; |
317 | ||
35fe4c65 AP |
318 | ret = regmap_write(dev->regmap, 0x02, 0x0a); |
319 | if (ret) | |
d9cb41af | 320 | goto err; |
d9cb41af AP |
321 | return 0; |
322 | err: | |
154cdfb0 | 323 | dev_dbg(&client->dev, "failed=%d\n", ret); |
d9cb41af AP |
324 | return ret; |
325 | } | |
326 | ||
252fad1c AP |
327 | /* |
328 | * DVB API | |
329 | */ | |
330 | static int fc2580_dvb_set_params(struct dvb_frontend *fe) | |
d9cb41af | 331 | { |
154cdfb0 | 332 | struct fc2580_dev *dev = fe->tuner_priv; |
252fad1c | 333 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
d9cb41af | 334 | |
252fad1c AP |
335 | dev->f_frequency = c->frequency; |
336 | dev->f_bandwidth = c->bandwidth_hz; | |
337 | return fc2580_set_params(dev); | |
338 | } | |
d9cb41af | 339 | |
252fad1c AP |
340 | static int fc2580_dvb_init(struct dvb_frontend *fe) |
341 | { | |
342 | return fc2580_init(fe->tuner_priv); | |
343 | } | |
d9cb41af | 344 | |
252fad1c AP |
345 | static int fc2580_dvb_sleep(struct dvb_frontend *fe) |
346 | { | |
347 | return fc2580_sleep(fe->tuner_priv); | |
348 | } | |
349 | ||
350 | static int fc2580_dvb_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) | |
351 | { | |
352 | *frequency = 0; /* Zero-IF */ | |
d9cb41af AP |
353 | return 0; |
354 | } | |
355 | ||
252fad1c | 356 | static const struct dvb_tuner_ops fc2580_dvb_tuner_ops = { |
d9cb41af | 357 | .info = { |
a3f90c75 MCC |
358 | .name = "FCI FC2580", |
359 | .frequency_min_hz = 174 * MHz, | |
360 | .frequency_max_hz = 862 * MHz, | |
d9cb41af AP |
361 | }, |
362 | ||
252fad1c AP |
363 | .init = fc2580_dvb_init, |
364 | .sleep = fc2580_dvb_sleep, | |
365 | .set_params = fc2580_dvb_set_params, | |
d9cb41af | 366 | |
252fad1c | 367 | .get_if_frequency = fc2580_dvb_get_if_frequency, |
d9cb41af AP |
368 | }; |
369 | ||
252fad1c AP |
370 | /* |
371 | * V4L2 API | |
372 | */ | |
373 | #if IS_ENABLED(CONFIG_VIDEO_V4L2) | |
374 | static const struct v4l2_frequency_band bands[] = { | |
375 | { | |
376 | .type = V4L2_TUNER_RF, | |
377 | .index = 0, | |
378 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
379 | .rangelow = 130000000, | |
380 | .rangehigh = 2000000000, | |
381 | }, | |
382 | }; | |
383 | ||
384 | static inline struct fc2580_dev *fc2580_subdev_to_dev(struct v4l2_subdev *sd) | |
385 | { | |
386 | return container_of(sd, struct fc2580_dev, subdev); | |
387 | } | |
388 | ||
3aab15af | 389 | static int fc2580_standby(struct v4l2_subdev *sd) |
252fad1c AP |
390 | { |
391 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
252fad1c AP |
392 | int ret; |
393 | ||
3aab15af | 394 | ret = fc2580_sleep(dev); |
252fad1c AP |
395 | if (ret) |
396 | return ret; | |
397 | ||
398 | return fc2580_set_params(dev); | |
399 | } | |
400 | ||
252fad1c AP |
401 | static int fc2580_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v) |
402 | { | |
403 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
404 | struct i2c_client *client = dev->client; | |
405 | ||
406 | dev_dbg(&client->dev, "index=%d\n", v->index); | |
407 | ||
408 | strlcpy(v->name, "FCI FC2580", sizeof(v->name)); | |
409 | v->type = V4L2_TUNER_RF; | |
410 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
411 | v->rangelow = bands[0].rangelow; | |
412 | v->rangehigh = bands[0].rangehigh; | |
413 | return 0; | |
414 | } | |
415 | ||
416 | static int fc2580_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v) | |
417 | { | |
418 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
419 | struct i2c_client *client = dev->client; | |
420 | ||
421 | dev_dbg(&client->dev, "index=%d\n", v->index); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | static int fc2580_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) | |
426 | { | |
427 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
428 | struct i2c_client *client = dev->client; | |
429 | ||
430 | dev_dbg(&client->dev, "tuner=%d\n", f->tuner); | |
431 | f->frequency = dev->f_frequency; | |
432 | return 0; | |
433 | } | |
434 | ||
435 | static int fc2580_s_frequency(struct v4l2_subdev *sd, | |
436 | const struct v4l2_frequency *f) | |
437 | { | |
438 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
439 | struct i2c_client *client = dev->client; | |
440 | ||
441 | dev_dbg(&client->dev, "tuner=%d type=%d frequency=%u\n", | |
442 | f->tuner, f->type, f->frequency); | |
443 | ||
444 | dev->f_frequency = clamp_t(unsigned int, f->frequency, | |
445 | bands[0].rangelow, bands[0].rangehigh); | |
446 | return fc2580_set_params(dev); | |
447 | } | |
448 | ||
449 | static int fc2580_enum_freq_bands(struct v4l2_subdev *sd, | |
450 | struct v4l2_frequency_band *band) | |
451 | { | |
452 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); | |
453 | struct i2c_client *client = dev->client; | |
454 | ||
455 | dev_dbg(&client->dev, "tuner=%d type=%d index=%d\n", | |
456 | band->tuner, band->type, band->index); | |
457 | ||
458 | if (band->index >= ARRAY_SIZE(bands)) | |
459 | return -EINVAL; | |
460 | ||
461 | band->capability = bands[band->index].capability; | |
462 | band->rangelow = bands[band->index].rangelow; | |
463 | band->rangehigh = bands[band->index].rangehigh; | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static const struct v4l2_subdev_tuner_ops fc2580_subdev_tuner_ops = { | |
3aab15af | 468 | .standby = fc2580_standby, |
252fad1c AP |
469 | .g_tuner = fc2580_g_tuner, |
470 | .s_tuner = fc2580_s_tuner, | |
471 | .g_frequency = fc2580_g_frequency, | |
472 | .s_frequency = fc2580_s_frequency, | |
473 | .enum_freq_bands = fc2580_enum_freq_bands, | |
474 | }; | |
475 | ||
476 | static const struct v4l2_subdev_ops fc2580_subdev_ops = { | |
252fad1c AP |
477 | .tuner = &fc2580_subdev_tuner_ops, |
478 | }; | |
479 | ||
480 | static int fc2580_s_ctrl(struct v4l2_ctrl *ctrl) | |
481 | { | |
482 | struct fc2580_dev *dev = container_of(ctrl->handler, struct fc2580_dev, hdl); | |
483 | struct i2c_client *client = dev->client; | |
484 | int ret; | |
485 | ||
486 | dev_dbg(&client->dev, "ctrl: id=%d name=%s cur.val=%d val=%d\n", | |
487 | ctrl->id, ctrl->name, ctrl->cur.val, ctrl->val); | |
488 | ||
489 | switch (ctrl->id) { | |
490 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: | |
491 | case V4L2_CID_RF_TUNER_BANDWIDTH: | |
492 | /* | |
493 | * TODO: Auto logic does not work 100% correctly as tuner driver | |
494 | * do not have information to calculate maximum suitable | |
495 | * bandwidth. Calculating it is responsible of master driver. | |
496 | */ | |
497 | dev->f_bandwidth = dev->bandwidth->val; | |
498 | ret = fc2580_set_params(dev); | |
499 | break; | |
500 | default: | |
501 | dev_dbg(&client->dev, "unknown ctrl"); | |
502 | ret = -EINVAL; | |
503 | } | |
504 | return ret; | |
505 | } | |
506 | ||
507 | static const struct v4l2_ctrl_ops fc2580_ctrl_ops = { | |
508 | .s_ctrl = fc2580_s_ctrl, | |
509 | }; | |
510 | #endif | |
511 | ||
512 | static struct v4l2_subdev *fc2580_get_v4l2_subdev(struct i2c_client *client) | |
513 | { | |
514 | struct fc2580_dev *dev = i2c_get_clientdata(client); | |
515 | ||
516 | if (dev->subdev.ops) | |
517 | return &dev->subdev; | |
518 | else | |
519 | return NULL; | |
520 | } | |
521 | ||
6802fc0b AP |
522 | static int fc2580_probe(struct i2c_client *client, |
523 | const struct i2c_device_id *id) | |
524 | { | |
154cdfb0 | 525 | struct fc2580_dev *dev; |
6802fc0b AP |
526 | struct fc2580_platform_data *pdata = client->dev.platform_data; |
527 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
528 | int ret; | |
35fe4c65 AP |
529 | unsigned int uitmp; |
530 | static const struct regmap_config regmap_config = { | |
531 | .reg_bits = 8, | |
532 | .val_bits = 8, | |
533 | }; | |
6802fc0b AP |
534 | |
535 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
536 | if (!dev) { | |
537 | ret = -ENOMEM; | |
538 | goto err; | |
539 | } | |
540 | ||
541 | if (pdata->clk) | |
542 | dev->clk = pdata->clk; | |
543 | else | |
544 | dev->clk = 16384000; /* internal clock */ | |
545 | dev->client = client; | |
35fe4c65 AP |
546 | dev->regmap = devm_regmap_init_i2c(client, ®map_config); |
547 | if (IS_ERR(dev->regmap)) { | |
548 | ret = PTR_ERR(dev->regmap); | |
549 | goto err_kfree; | |
550 | } | |
6802fc0b AP |
551 | |
552 | /* check if the tuner is there */ | |
35fe4c65 AP |
553 | ret = regmap_read(dev->regmap, 0x01, &uitmp); |
554 | if (ret) | |
6802fc0b AP |
555 | goto err_kfree; |
556 | ||
35fe4c65 | 557 | dev_dbg(&client->dev, "chip_id=%02x\n", uitmp); |
6802fc0b | 558 | |
35fe4c65 | 559 | switch (uitmp) { |
6802fc0b AP |
560 | case 0x56: |
561 | case 0x5a: | |
562 | break; | |
563 | default: | |
f00245c2 | 564 | ret = -ENODEV; |
6802fc0b AP |
565 | goto err_kfree; |
566 | } | |
567 | ||
252fad1c AP |
568 | #if IS_ENABLED(CONFIG_VIDEO_V4L2) |
569 | /* Register controls */ | |
570 | v4l2_ctrl_handler_init(&dev->hdl, 2); | |
571 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &fc2580_ctrl_ops, | |
572 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, | |
573 | 0, 1, 1, 1); | |
574 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &fc2580_ctrl_ops, | |
575 | V4L2_CID_RF_TUNER_BANDWIDTH, | |
576 | 3000, 10000000, 1, 3000); | |
577 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); | |
578 | if (dev->hdl.error) { | |
579 | ret = dev->hdl.error; | |
580 | dev_err(&client->dev, "Could not initialize controls\n"); | |
581 | v4l2_ctrl_handler_free(&dev->hdl); | |
582 | goto err_kfree; | |
583 | } | |
584 | dev->subdev.ctrl_handler = &dev->hdl; | |
585 | dev->f_frequency = bands[0].rangelow; | |
586 | dev->f_bandwidth = dev->bandwidth->val; | |
587 | v4l2_i2c_subdev_init(&dev->subdev, client, &fc2580_subdev_ops); | |
588 | #endif | |
6802fc0b | 589 | fe->tuner_priv = dev; |
252fad1c AP |
590 | memcpy(&fe->ops.tuner_ops, &fc2580_dvb_tuner_ops, |
591 | sizeof(fe->ops.tuner_ops)); | |
592 | pdata->get_v4l2_subdev = fc2580_get_v4l2_subdev; | |
6802fc0b AP |
593 | i2c_set_clientdata(client, dev); |
594 | ||
595 | dev_info(&client->dev, "FCI FC2580 successfully identified\n"); | |
596 | return 0; | |
597 | err_kfree: | |
598 | kfree(dev); | |
599 | err: | |
600 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
601 | return ret; | |
602 | } | |
603 | ||
604 | static int fc2580_remove(struct i2c_client *client) | |
605 | { | |
154cdfb0 | 606 | struct fc2580_dev *dev = i2c_get_clientdata(client); |
6802fc0b AP |
607 | |
608 | dev_dbg(&client->dev, "\n"); | |
609 | ||
252fad1c AP |
610 | #if IS_ENABLED(CONFIG_VIDEO_V4L2) |
611 | v4l2_ctrl_handler_free(&dev->hdl); | |
612 | #endif | |
6802fc0b AP |
613 | kfree(dev); |
614 | return 0; | |
615 | } | |
616 | ||
617 | static const struct i2c_device_id fc2580_id_table[] = { | |
618 | {"fc2580", 0}, | |
619 | {} | |
620 | }; | |
621 | MODULE_DEVICE_TABLE(i2c, fc2580_id_table); | |
622 | ||
623 | static struct i2c_driver fc2580_driver = { | |
624 | .driver = { | |
6802fc0b AP |
625 | .name = "fc2580", |
626 | .suppress_bind_attrs = true, | |
627 | }, | |
628 | .probe = fc2580_probe, | |
629 | .remove = fc2580_remove, | |
630 | .id_table = fc2580_id_table, | |
631 | }; | |
632 | ||
633 | module_i2c_driver(fc2580_driver); | |
634 | ||
d9cb41af AP |
635 | MODULE_DESCRIPTION("FCI FC2580 silicon tuner driver"); |
636 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
637 | MODULE_LICENSE("GPL"); |