Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * i2c tv tuner chip device driver |
3 | * core core, i.e. kernel interfaces, registering and so on | |
a2894e3f MCC |
4 | * |
5 | * Copyright(c) by Ralph Metzler, Gerd Knorr, Gunther Mayer | |
6 | * | |
7 | * Copyright(c) 2005-2011 by Mauro Carvalho Chehab | |
8 | * - Added support for a separate Radio tuner | |
9 | * - Major rework and cleanups at the code | |
10 | * | |
11 | * This driver supports many devices and the idea is to let the driver | |
12 | * detect which device is present. So rather than listing all supported | |
13 | * devices here, we pretend to support a single, fake device type that will | |
14 | * handle both radio and analog TV tuning. | |
1da177e4 LT |
15 | */ |
16 | ||
17 | #include <linux/module.h> | |
1da177e4 | 18 | #include <linux/kernel.h> |
1da177e4 LT |
19 | #include <linux/string.h> |
20 | #include <linux/timer.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/poll.h> | |
25 | #include <linux/i2c.h> | |
26 | #include <linux/types.h> | |
1da177e4 | 27 | #include <linux/init.h> |
75b4c260 | 28 | #include <linux/videodev2.h> |
1da177e4 | 29 | #include <media/tuner.h> |
4adad287 | 30 | #include <media/tuner-types.h> |
e8a4a9e7 | 31 | #include <media/v4l2-device.h> |
35ea11ff | 32 | #include <media/v4l2-ioctl.h> |
96c0b7cf | 33 | #include "mt20xx.h" |
910bb3e3 | 34 | #include "tda8290.h" |
7ab10bf7 | 35 | #include "tea5761.h" |
8d0936ed | 36 | #include "tea5767.h" |
215b95ba | 37 | #include "tuner-xc2028.h" |
4adad287 | 38 | #include "tuner-simple.h" |
31c9584c | 39 | #include "tda9887.h" |
27c685a4 | 40 | #include "xc5000.h" |
93463895 | 41 | #include "tda18271.h" |
8d009a0c | 42 | #include "xc4000.h" |
1da177e4 LT |
43 | |
44 | #define UNSET (-1U) | |
45 | ||
7d275bf8 | 46 | #define PREFIX (t->i2c->driver->driver.name) |
241020d1 | 47 | |
9f3f71ef MCC |
48 | /* |
49 | * Driver modprobe parameters | |
50 | */ | |
51 | ||
52 | /* insmod options used at init time => read/only */ | |
53 | static unsigned int addr; | |
54 | static unsigned int no_autodetect; | |
55 | static unsigned int show_i2c; | |
56 | ||
57 | module_param(addr, int, 0444); | |
58 | module_param(no_autodetect, int, 0444); | |
59 | module_param(show_i2c, int, 0444); | |
60 | ||
61 | /* insmod options used at runtime => read/write */ | |
62 | static int tuner_debug; | |
63 | static unsigned int tv_range[2] = { 44, 958 }; | |
64 | static unsigned int radio_range[2] = { 65, 108 }; | |
65 | static char pal[] = "--"; | |
66 | static char secam[] = "--"; | |
67 | static char ntsc[] = "-"; | |
68 | ||
7d275bf8 | 69 | module_param_named(debug, tuner_debug, int, 0644); |
9f3f71ef MCC |
70 | module_param_array(tv_range, int, NULL, 0644); |
71 | module_param_array(radio_range, int, NULL, 0644); | |
72 | module_param_string(pal, pal, sizeof(pal), 0644); | |
73 | module_param_string(secam, secam, sizeof(secam), 0644); | |
74 | module_param_string(ntsc, ntsc, sizeof(ntsc), 0644); | |
75 | ||
76 | /* | |
77 | * Static vars | |
78 | */ | |
79 | ||
9f3f71ef | 80 | static LIST_HEAD(tuner_list); |
a2894e3f | 81 | static const struct v4l2_subdev_ops tuner_ops; |
9f3f71ef MCC |
82 | |
83 | /* | |
84 | * Debug macros | |
85 | */ | |
86 | ||
87 | #define tuner_warn(fmt, arg...) do { \ | |
88 | printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \ | |
89 | i2c_adapter_id(t->i2c->adapter), \ | |
90 | t->i2c->addr, ##arg); \ | |
91 | } while (0) | |
92 | ||
93 | #define tuner_info(fmt, arg...) do { \ | |
94 | printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \ | |
95 | i2c_adapter_id(t->i2c->adapter), \ | |
96 | t->i2c->addr, ##arg); \ | |
97 | } while (0) | |
98 | ||
99 | #define tuner_err(fmt, arg...) do { \ | |
100 | printk(KERN_ERR "%s %d-%04x: " fmt, PREFIX, \ | |
101 | i2c_adapter_id(t->i2c->adapter), \ | |
102 | t->i2c->addr, ##arg); \ | |
103 | } while (0) | |
104 | ||
105 | #define tuner_dbg(fmt, arg...) do { \ | |
106 | if (tuner_debug) \ | |
107 | printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \ | |
108 | i2c_adapter_id(t->i2c->adapter), \ | |
109 | t->i2c->addr, ##arg); \ | |
110 | } while (0) | |
111 | ||
112 | /* | |
113 | * Internal struct used inside the driver | |
114 | */ | |
115 | ||
116 | struct tuner { | |
117 | /* device */ | |
118 | struct dvb_frontend fe; | |
119 | struct i2c_client *i2c; | |
120 | struct v4l2_subdev sd; | |
121 | struct list_head list; | |
122 | ||
123 | /* keep track of the current settings */ | |
124 | v4l2_std_id std; | |
125 | unsigned int tv_freq; | |
126 | unsigned int radio_freq; | |
127 | unsigned int audmode; | |
128 | ||
cbde6898 | 129 | enum v4l2_tuner_type mode; |
9f3f71ef MCC |
130 | unsigned int mode_mask; /* Combination of allowable modes */ |
131 | ||
cbde6898 MCC |
132 | bool standby; /* Standby mode */ |
133 | ||
9f3f71ef MCC |
134 | unsigned int type; /* chip type id */ |
135 | unsigned int config; | |
136 | const char *name; | |
137 | }; | |
138 | ||
a2894e3f MCC |
139 | /* |
140 | * Function prototypes | |
141 | */ | |
142 | ||
143 | static void set_tv_freq(struct i2c_client *c, unsigned int freq); | |
144 | static void set_radio_freq(struct i2c_client *c, unsigned int freq); | |
145 | ||
9f3f71ef MCC |
146 | /* |
147 | * tuner attach/detach logic | |
148 | */ | |
149 | ||
0ae79d99 | 150 | /* This macro allows us to probe dynamically, avoiding static links */ |
ff138171 | 151 | #ifdef CONFIG_MEDIA_ATTACH |
a07c8779 MK |
152 | #define tuner_symbol_probe(FUNCTION, ARGS...) ({ \ |
153 | int __r = -EINVAL; \ | |
154 | typeof(&FUNCTION) __a = symbol_request(FUNCTION); \ | |
155 | if (__a) { \ | |
156 | __r = (int) __a(ARGS); \ | |
a1355e53 | 157 | symbol_put(FUNCTION); \ |
a07c8779 MK |
158 | } else { \ |
159 | printk(KERN_ERR "TUNER: Unable to find " \ | |
160 | "symbol "#FUNCTION"()\n"); \ | |
161 | } \ | |
a07c8779 MK |
162 | __r; \ |
163 | }) | |
164 | ||
165 | static void tuner_detach(struct dvb_frontend *fe) | |
166 | { | |
167 | if (fe->ops.tuner_ops.release) { | |
168 | fe->ops.tuner_ops.release(fe); | |
169 | symbol_put_addr(fe->ops.tuner_ops.release); | |
170 | } | |
171 | if (fe->ops.analog_ops.release) { | |
172 | fe->ops.analog_ops.release(fe); | |
173 | symbol_put_addr(fe->ops.analog_ops.release); | |
174 | } | |
175 | } | |
176 | #else | |
177 | #define tuner_symbol_probe(FUNCTION, ARGS...) ({ \ | |
178 | FUNCTION(ARGS); \ | |
179 | }) | |
180 | ||
181 | static void tuner_detach(struct dvb_frontend *fe) | |
182 | { | |
183 | if (fe->ops.tuner_ops.release) | |
184 | fe->ops.tuner_ops.release(fe); | |
185 | if (fe->ops.analog_ops.release) | |
186 | fe->ops.analog_ops.release(fe); | |
187 | } | |
188 | #endif | |
189 | ||
f7f427e4 | 190 | |
e8a4a9e7 HV |
191 | static inline struct tuner *to_tuner(struct v4l2_subdev *sd) |
192 | { | |
193 | return container_of(sd, struct tuner, sd); | |
194 | } | |
195 | ||
9f3f71ef MCC |
196 | /* |
197 | * struct analog_demod_ops callbacks | |
198 | */ | |
1da177e4 | 199 | |
c7919d52 MK |
200 | static void fe_set_params(struct dvb_frontend *fe, |
201 | struct analog_parameters *params) | |
e18f9444 | 202 | { |
4e9154b8 MK |
203 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; |
204 | struct tuner *t = fe->analog_demod_priv; | |
e18f9444 | 205 | |
e18f9444 MK |
206 | if (NULL == fe_tuner_ops->set_analog_params) { |
207 | tuner_warn("Tuner frontend module has no way to set freq\n"); | |
208 | return; | |
209 | } | |
c7919d52 | 210 | fe_tuner_ops->set_analog_params(fe, params); |
e18f9444 MK |
211 | } |
212 | ||
4e9154b8 | 213 | static void fe_standby(struct dvb_frontend *fe) |
e18f9444 | 214 | { |
4e9154b8 | 215 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; |
e18f9444 MK |
216 | |
217 | if (fe_tuner_ops->sleep) | |
4e9154b8 | 218 | fe_tuner_ops->sleep(fe); |
e18f9444 MK |
219 | } |
220 | ||
4e9154b8 | 221 | static int fe_has_signal(struct dvb_frontend *fe) |
1f5ef197 | 222 | { |
1419683d | 223 | u16 strength = 0; |
1f5ef197 | 224 | |
4e9154b8 MK |
225 | if (fe->ops.tuner_ops.get_rf_strength) |
226 | fe->ops.tuner_ops.get_rf_strength(fe, &strength); | |
1f5ef197 MK |
227 | |
228 | return strength; | |
229 | } | |
230 | ||
1d432a3d MCC |
231 | static int fe_get_afc(struct dvb_frontend *fe) |
232 | { | |
233 | s32 afc = 0; | |
234 | ||
235 | if (fe->ops.tuner_ops.get_afc) | |
236 | fe->ops.tuner_ops.get_afc(fe, &afc); | |
237 | ||
383730c3 | 238 | return afc; |
1d432a3d MCC |
239 | } |
240 | ||
f1c9a281 MK |
241 | static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg) |
242 | { | |
243 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; | |
244 | struct tuner *t = fe->analog_demod_priv; | |
245 | ||
246 | if (fe_tuner_ops->set_config) | |
247 | return fe_tuner_ops->set_config(fe, priv_cfg); | |
248 | ||
249 | tuner_warn("Tuner frontend module has no way to set config\n"); | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
4e9154b8 | 254 | static void tuner_status(struct dvb_frontend *fe); |
1dde7a4f | 255 | |
106cf649 | 256 | static const struct analog_demod_ops tuner_analog_ops = { |
c7919d52 | 257 | .set_params = fe_set_params, |
1dde7a4f | 258 | .standby = fe_standby, |
1dde7a4f | 259 | .has_signal = fe_has_signal, |
1d432a3d | 260 | .get_afc = fe_get_afc, |
f1c9a281 | 261 | .set_config = fe_set_config, |
1dde7a4f MK |
262 | .tuner_status = tuner_status |
263 | }; | |
264 | ||
9f3f71ef | 265 | /* |
0eec66c0 | 266 | * Functions to select between radio and TV and tuner probe/remove functions |
9f3f71ef | 267 | */ |
1da177e4 | 268 | |
a2894e3f MCC |
269 | /** |
270 | * set_type - Sets the tuner type for a given device | |
271 | * | |
272 | * @c: i2c_client descriptoy | |
273 | * @type: type of the tuner (e. g. tuner number) | |
274 | * @new_mode_mask: Indicates if tuner supports TV and/or Radio | |
275 | * @new_config: an optional parameter ranging from 0-255 used by | |
276 | a few tuners to adjust an internal parameter, | |
277 | like LNA mode | |
278 | * @tuner_callback: an optional function to be called when switching | |
279 | * to analog mode | |
280 | * | |
281 | * This function applys the tuner config to tuner specified | |
282 | * by tun_setup structure. It contains several per-tuner initialization "magic" | |
283 | */ | |
f7ce3cc6 | 284 | static void set_type(struct i2c_client *c, unsigned int type, |
de956c1e | 285 | unsigned int new_mode_mask, unsigned int new_config, |
d7cba043 | 286 | int (*tuner_callback) (void *dev, int component, int cmd, int arg)) |
1da177e4 | 287 | { |
e8a4a9e7 | 288 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e18f9444 | 289 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; |
bc3e5c7f | 290 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
586b0cab | 291 | unsigned char buffer[4]; |
d6eef494 | 292 | int tune_now = 1; |
1da177e4 | 293 | |
f7ce3cc6 | 294 | if (type == UNSET || type == TUNER_ABSENT) { |
7d275bf8 | 295 | tuner_dbg("tuner 0x%02x: Tuner type absent\n", c->addr); |
1da177e4 | 296 | return; |
f7ce3cc6 MCC |
297 | } |
298 | ||
80f90fba | 299 | t->type = type; |
e7ddcd98 | 300 | /* prevent invalid config values */ |
f14a2972 | 301 | t->config = new_config < 256 ? new_config : 0; |
80f90fba HH |
302 | if (tuner_callback != NULL) { |
303 | tuner_dbg("defining GPIO callback\n"); | |
d7cba043 | 304 | t->fe.callback = tuner_callback; |
80f90fba HH |
305 | } |
306 | ||
b2083199 | 307 | /* discard private data, in case set_type() was previously called */ |
a07c8779 MK |
308 | tuner_detach(&t->fe); |
309 | t->fe.analog_demod_priv = NULL; | |
be2b85a1 | 310 | |
1da177e4 LT |
311 | switch (t->type) { |
312 | case TUNER_MT2032: | |
09fee5f8 MCC |
313 | if (!dvb_attach(microtune_attach, |
314 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
315 | goto attach_failed; | |
1da177e4 LT |
316 | break; |
317 | case TUNER_PHILIPS_TDA8290: | |
5bea1cd3 | 318 | { |
09fee5f8 MCC |
319 | struct tda829x_config cfg = { |
320 | .lna_cfg = t->config, | |
09fee5f8 MCC |
321 | }; |
322 | if (!dvb_attach(tda829x_attach, &t->fe, t->i2c->adapter, | |
323 | t->i2c->addr, &cfg)) | |
324 | goto attach_failed; | |
5bea1cd3 MK |
325 | break; |
326 | } | |
586b0cab | 327 | case TUNER_TEA5767: |
a07c8779 MK |
328 | if (!dvb_attach(tea5767_attach, &t->fe, |
329 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 330 | goto attach_failed; |
f7ce3cc6 | 331 | t->mode_mask = T_RADIO; |
586b0cab | 332 | break; |
8573a9e6 | 333 | case TUNER_TEA5761: |
a07c8779 MK |
334 | if (!dvb_attach(tea5761_attach, &t->fe, |
335 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 336 | goto attach_failed; |
8573a9e6 MCC |
337 | t->mode_mask = T_RADIO; |
338 | break; | |
586b0cab | 339 | case TUNER_PHILIPS_FMD1216ME_MK3: |
27b93d8a | 340 | case TUNER_PHILIPS_FMD1216MEX_MK3: |
586b0cab MCC |
341 | buffer[0] = 0x0b; |
342 | buffer[1] = 0xdc; | |
343 | buffer[2] = 0x9c; | |
344 | buffer[3] = 0x60; | |
f7ce3cc6 | 345 | i2c_master_send(c, buffer, 4); |
586b0cab MCC |
346 | mdelay(1); |
347 | buffer[2] = 0x86; | |
348 | buffer[3] = 0x54; | |
f7ce3cc6 | 349 | i2c_master_send(c, buffer, 4); |
a07c8779 MK |
350 | if (!dvb_attach(simple_tuner_attach, &t->fe, |
351 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 352 | goto attach_failed; |
586b0cab | 353 | break; |
93df3413 HH |
354 | case TUNER_PHILIPS_TD1316: |
355 | buffer[0] = 0x0b; | |
356 | buffer[1] = 0xdc; | |
357 | buffer[2] = 0x86; | |
358 | buffer[3] = 0xa4; | |
a07c8779 MK |
359 | i2c_master_send(c, buffer, 4); |
360 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
361 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 362 | goto attach_failed; |
ac272ed7 | 363 | break; |
690c544c MCC |
364 | case TUNER_XC2028: |
365 | { | |
a37b4c9b ML |
366 | struct xc2028_config cfg = { |
367 | .i2c_adap = t->i2c->adapter, | |
368 | .i2c_addr = t->i2c->addr, | |
a37b4c9b | 369 | }; |
a07c8779 | 370 | if (!dvb_attach(xc2028_attach, &t->fe, &cfg)) |
b9ef6bbb | 371 | goto attach_failed; |
d6eef494 | 372 | tune_now = 0; |
690c544c MCC |
373 | break; |
374 | } | |
15396236 | 375 | case TUNER_TDA9887: |
09fee5f8 MCC |
376 | if (!dvb_attach(tda9887_attach, |
377 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
378 | goto attach_failed; | |
15396236 | 379 | break; |
27c685a4 | 380 | case TUNER_XC5000: |
b9ef6bbb | 381 | { |
900f734b MCC |
382 | struct xc5000_config xc5000_cfg = { |
383 | .i2c_address = t->i2c->addr, | |
384 | /* if_khz will be set at dvb_attach() */ | |
385 | .if_khz = 0, | |
386 | }; | |
387 | ||
a07c8779 | 388 | if (!dvb_attach(xc5000_attach, |
30650961 | 389 | &t->fe, t->i2c->adapter, &xc5000_cfg)) |
b9ef6bbb | 390 | goto attach_failed; |
d6eef494 | 391 | tune_now = 0; |
27c685a4 | 392 | break; |
b9ef6bbb | 393 | } |
f21cfaf6 MK |
394 | case TUNER_XC5000C: |
395 | { | |
396 | struct xc5000_config xc5000c_cfg = { | |
397 | .i2c_address = t->i2c->addr, | |
398 | /* if_khz will be set at dvb_attach() */ | |
399 | .if_khz = 0, | |
6fab81df | 400 | .chip_id = XC5000C, |
f21cfaf6 MK |
401 | }; |
402 | ||
403 | if (!dvb_attach(xc5000_attach, | |
404 | &t->fe, t->i2c->adapter, &xc5000c_cfg)) | |
405 | goto attach_failed; | |
406 | tune_now = 0; | |
407 | break; | |
408 | } | |
93463895 MK |
409 | case TUNER_NXP_TDA18271: |
410 | { | |
411 | struct tda18271_config cfg = { | |
412 | .config = t->config, | |
e350d44f | 413 | .small_i2c = TDA18271_03_BYTE_CHUNK_INIT, |
93463895 MK |
414 | }; |
415 | ||
9f3f71ef MCC |
416 | if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr, |
417 | t->i2c->adapter, &cfg)) | |
418 | goto attach_failed; | |
419 | tune_now = 0; | |
420 | break; | |
421 | } | |
8d009a0c DF |
422 | case TUNER_XC4000: |
423 | { | |
424 | struct xc4000_config xc4000_cfg = { | |
425 | .i2c_address = t->i2c->addr, | |
8edeb6eb | 426 | /* FIXME: the correct parameters will be set */ |
427 | /* only when the digital dvb_attach() occurs */ | |
428 | .default_pm = 0, | |
429 | .dvb_amplitude = 0, | |
430 | .set_smoothedcvbs = 0, | |
431 | .if_khz = 0 | |
8d009a0c DF |
432 | }; |
433 | if (!dvb_attach(xc4000_attach, | |
434 | &t->fe, t->i2c->adapter, &xc4000_cfg)) | |
435 | goto attach_failed; | |
436 | tune_now = 0; | |
437 | break; | |
438 | } | |
9f3f71ef MCC |
439 | default: |
440 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
441 | t->i2c->adapter, t->i2c->addr, t->type)) | |
442 | goto attach_failed; | |
443 | ||
444 | break; | |
445 | } | |
446 | ||
447 | if ((NULL == analog_ops->set_params) && | |
448 | (fe_tuner_ops->set_analog_params)) { | |
449 | ||
450 | t->name = fe_tuner_ops->info.name; | |
451 | ||
452 | t->fe.analog_demod_priv = t; | |
453 | memcpy(analog_ops, &tuner_analog_ops, | |
454 | sizeof(struct analog_demod_ops)); | |
455 | ||
106cf649 HV |
456 | if (fe_tuner_ops->get_rf_strength == NULL) |
457 | analog_ops->has_signal = NULL; | |
458 | if (fe_tuner_ops->get_afc == NULL) | |
459 | analog_ops->get_afc = NULL; | |
460 | ||
9f3f71ef MCC |
461 | } else { |
462 | t->name = analog_ops->info.name; | |
463 | } | |
464 | ||
465 | tuner_dbg("type set to %s\n", t->name); | |
466 | ||
cbde6898 | 467 | t->mode_mask = new_mode_mask; |
9f3f71ef MCC |
468 | |
469 | /* Some tuners require more initialization setup before use, | |
470 | such as firmware download or device calibration. | |
471 | trying to set a frequency here will just fail | |
472 | FIXME: better to move set_freq to the tuner code. This is needed | |
473 | on analog tuners for PLL to properly work | |
474 | */ | |
475 | if (tune_now) { | |
476 | if (V4L2_TUNER_RADIO == t->mode) | |
477 | set_radio_freq(c, t->radio_freq); | |
478 | else | |
479 | set_tv_freq(c, t->tv_freq); | |
480 | } | |
481 | ||
482 | tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n", | |
483 | c->adapter->name, c->driver->driver.name, c->addr << 1, type, | |
484 | t->mode_mask); | |
485 | return; | |
486 | ||
487 | attach_failed: | |
488 | tuner_dbg("Tuner attach for type = %d failed.\n", t->type); | |
489 | t->type = TUNER_ABSENT; | |
9f3f71ef MCC |
490 | |
491 | return; | |
492 | } | |
493 | ||
0ae79d99 MCC |
494 | /** |
495 | * tuner_s_type_addr - Sets the tuner type for a device | |
496 | * | |
497 | * @sd: subdev descriptor | |
498 | * @tun_setup: type to be associated to a given tuner i2c address | |
499 | * | |
500 | * This function applys the tuner config to tuner specified | |
501 | * by tun_setup structure. | |
502 | * If tuner I2C address is UNSET, then it will only set the device | |
503 | * if the tuner supports the mode specified in the call. | |
504 | * If the address is specified, the change will be applied only if | |
505 | * tuner I2C address matches. | |
506 | * The call can change the tuner number and the tuner mode. | |
507 | */ | |
a34ec5f3 MCC |
508 | static int tuner_s_type_addr(struct v4l2_subdev *sd, |
509 | struct tuner_setup *tun_setup) | |
9f3f71ef | 510 | { |
a34ec5f3 MCC |
511 | struct tuner *t = to_tuner(sd); |
512 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
513 | ||
514 | tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n", | |
515 | tun_setup->type, | |
516 | tun_setup->addr, | |
517 | tun_setup->mode_mask, | |
518 | tun_setup->config); | |
9f3f71ef | 519 | |
7d275bf8 MCC |
520 | if ((t->type == UNSET && ((tun_setup->addr == ADDR_UNSET) && |
521 | (t->mode_mask & tun_setup->mode_mask))) || | |
522 | (tun_setup->addr == c->addr)) { | |
cbde6898 MCC |
523 | set_type(c, tun_setup->type, tun_setup->mode_mask, |
524 | tun_setup->config, tun_setup->tuner_callback); | |
9f3f71ef MCC |
525 | } else |
526 | tuner_dbg("set addr discarded for type %i, mask %x. " | |
527 | "Asked to change tuner at addr 0x%02x, with mask %x\n", | |
528 | t->type, t->mode_mask, | |
529 | tun_setup->addr, tun_setup->mode_mask); | |
9f3f71ef | 530 | |
9f3f71ef MCC |
531 | return 0; |
532 | } | |
533 | ||
a2894e3f MCC |
534 | /** |
535 | * tuner_s_config - Sets tuner configuration | |
536 | * | |
537 | * @sd: subdev descriptor | |
538 | * @cfg: tuner configuration | |
539 | * | |
540 | * Calls tuner set_config() private function to set some tuner-internal | |
541 | * parameters | |
542 | */ | |
7d275bf8 MCC |
543 | static int tuner_s_config(struct v4l2_subdev *sd, |
544 | const struct v4l2_priv_tun_config *cfg) | |
9f3f71ef MCC |
545 | { |
546 | struct tuner *t = to_tuner(sd); | |
547 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
548 | ||
549 | if (t->type != cfg->tuner) | |
550 | return 0; | |
551 | ||
552 | if (analog_ops->set_config) { | |
553 | analog_ops->set_config(&t->fe, cfg->priv); | |
554 | return 0; | |
555 | } | |
556 | ||
557 | tuner_dbg("Tuner frontend module has no way to set config\n"); | |
558 | return 0; | |
559 | } | |
560 | ||
a2894e3f MCC |
561 | /** |
562 | * tuner_lookup - Seek for tuner adapters | |
563 | * | |
564 | * @adap: i2c_adapter struct | |
565 | * @radio: pointer to be filled if the adapter is radio | |
566 | * @tv: pointer to be filled if the adapter is TV | |
567 | * | |
568 | * Search for existing radio and/or TV tuners on the given I2C adapter, | |
569 | * discarding demod-only adapters (tda9887). | |
570 | * | |
571 | * Note that when this function is called from tuner_probe you can be | |
572 | * certain no other devices will be added/deleted at the same time, I2C | |
573 | * core protects against that. | |
574 | */ | |
9f3f71ef MCC |
575 | static void tuner_lookup(struct i2c_adapter *adap, |
576 | struct tuner **radio, struct tuner **tv) | |
577 | { | |
578 | struct tuner *pos; | |
579 | ||
580 | *radio = NULL; | |
581 | *tv = NULL; | |
582 | ||
583 | list_for_each_entry(pos, &tuner_list, list) { | |
584 | int mode_mask; | |
585 | ||
586 | if (pos->i2c->adapter != adap || | |
587 | strcmp(pos->i2c->driver->driver.name, "tuner")) | |
588 | continue; | |
589 | ||
cbde6898 | 590 | mode_mask = pos->mode_mask; |
9f3f71ef MCC |
591 | if (*radio == NULL && mode_mask == T_RADIO) |
592 | *radio = pos; | |
593 | /* Note: currently TDA9887 is the only demod-only | |
594 | device. If other devices appear then we need to | |
595 | make this test more general. */ | |
596 | else if (*tv == NULL && pos->type != TUNER_TDA9887 && | |
ad020dc2 | 597 | (pos->mode_mask & T_ANALOG_TV)) |
9f3f71ef MCC |
598 | *tv = pos; |
599 | } | |
600 | } | |
601 | ||
a2894e3f MCC |
602 | /** |
603 | *tuner_probe - Probes the existing tuners on an I2C bus | |
604 | * | |
605 | * @client: i2c_client descriptor | |
606 | * @id: not used | |
607 | * | |
608 | * This routine probes for tuners at the expected I2C addresses. On most | |
609 | * cases, if a device answers to a given I2C address, it assumes that the | |
610 | * device is a tuner. On a few cases, however, an additional logic is needed | |
611 | * to double check if the device is really a tuner, or to identify the tuner | |
612 | * type, like on tea5767/5761 devices. | |
613 | * | |
614 | * During client attach, set_type is called by adapter's attach_inform callback. | |
615 | * set_type must then be completed by tuner_probe. | |
9f3f71ef MCC |
616 | */ |
617 | static int tuner_probe(struct i2c_client *client, | |
618 | const struct i2c_device_id *id) | |
619 | { | |
620 | struct tuner *t; | |
621 | struct tuner *radio; | |
622 | struct tuner *tv; | |
623 | ||
624 | t = kzalloc(sizeof(struct tuner), GFP_KERNEL); | |
625 | if (NULL == t) | |
626 | return -ENOMEM; | |
627 | v4l2_i2c_subdev_init(&t->sd, client, &tuner_ops); | |
628 | t->i2c = client; | |
629 | t->name = "(tuner unset)"; | |
630 | t->type = UNSET; | |
631 | t->audmode = V4L2_TUNER_MODE_STEREO; | |
cbde6898 MCC |
632 | t->standby = 1; |
633 | t->radio_freq = 87.5 * 16000; /* Initial freq range */ | |
634 | t->tv_freq = 400 * 16; /* Sets freq to VHF High - needed for some PLL's to properly start */ | |
9f3f71ef MCC |
635 | |
636 | if (show_i2c) { | |
637 | unsigned char buffer[16]; | |
638 | int i, rc; | |
639 | ||
640 | memset(buffer, 0, sizeof(buffer)); | |
641 | rc = i2c_master_recv(client, buffer, sizeof(buffer)); | |
642 | tuner_info("I2C RECV = "); | |
643 | for (i = 0; i < rc; i++) | |
644 | printk(KERN_CONT "%02x ", buffer[i]); | |
645 | printk("\n"); | |
646 | } | |
647 | ||
648 | /* autodetection code based on the i2c addr */ | |
649 | if (!no_autodetect) { | |
650 | switch (client->addr) { | |
651 | case 0x10: | |
652 | if (tuner_symbol_probe(tea5761_autodetection, | |
653 | t->i2c->adapter, | |
654 | t->i2c->addr) >= 0) { | |
655 | t->type = TUNER_TEA5761; | |
656 | t->mode_mask = T_RADIO; | |
9f3f71ef MCC |
657 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
658 | if (tv) | |
659 | tv->mode_mask &= ~T_RADIO; | |
660 | ||
661 | goto register_client; | |
662 | } | |
663 | kfree(t); | |
664 | return -ENODEV; | |
665 | case 0x42: | |
666 | case 0x43: | |
667 | case 0x4a: | |
668 | case 0x4b: | |
669 | /* If chip is not tda8290, don't register. | |
670 | since it can be tda9887*/ | |
671 | if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter, | |
672 | t->i2c->addr) >= 0) { | |
673 | tuner_dbg("tda829x detected\n"); | |
674 | } else { | |
675 | /* Default is being tda9887 */ | |
676 | t->type = TUNER_TDA9887; | |
ad020dc2 | 677 | t->mode_mask = T_RADIO | T_ANALOG_TV; |
9f3f71ef MCC |
678 | goto register_client; |
679 | } | |
680 | break; | |
681 | case 0x60: | |
682 | if (tuner_symbol_probe(tea5767_autodetection, | |
683 | t->i2c->adapter, t->i2c->addr) | |
684 | >= 0) { | |
685 | t->type = TUNER_TEA5767; | |
686 | t->mode_mask = T_RADIO; | |
9f3f71ef | 687 | /* Sets freq to FM range */ |
9f3f71ef MCC |
688 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
689 | if (tv) | |
690 | tv->mode_mask &= ~T_RADIO; | |
691 | ||
692 | goto register_client; | |
693 | } | |
694 | break; | |
695 | } | |
93463895 | 696 | } |
b9ef6bbb | 697 | |
9f3f71ef MCC |
698 | /* Initializes only the first TV tuner on this adapter. Why only the |
699 | first? Because there are some devices (notably the ones with TI | |
700 | tuners) that have more than one i2c address for the *same* device. | |
701 | Experience shows that, except for just one case, the first | |
702 | address is the right one. The exception is a Russian tuner | |
703 | (ACORP_Y878F). So, the desired behavior is just to enable the | |
704 | first found TV tuner. */ | |
705 | tuner_lookup(t->i2c->adapter, &radio, &tv); | |
706 | if (tv == NULL) { | |
ad020dc2 | 707 | t->mode_mask = T_ANALOG_TV; |
9f3f71ef MCC |
708 | if (radio == NULL) |
709 | t->mode_mask |= T_RADIO; | |
710 | tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask); | |
1da177e4 | 711 | } |
f7ce3cc6 | 712 | |
9f3f71ef MCC |
713 | /* Should be just before return */ |
714 | register_client: | |
9f3f71ef | 715 | /* Sets a default mode */ |
7d275bf8 | 716 | if (t->mode_mask & T_ANALOG_TV) |
9f3f71ef | 717 | t->mode = V4L2_TUNER_ANALOG_TV; |
7d275bf8 | 718 | else |
ad020dc2 | 719 | t->mode = V4L2_TUNER_RADIO; |
9f3f71ef MCC |
720 | set_type(client, t->type, t->mode_mask, t->config, t->fe.callback); |
721 | list_add_tail(&t->list, &tuner_list); | |
cbde6898 | 722 | |
ad020dc2 | 723 | tuner_info("Tuner %d found with type(s)%s%s.\n", |
cbde6898 | 724 | t->type, |
ad020dc2 MCC |
725 | t->mode_mask & T_RADIO ? " Radio" : "", |
726 | t->mode_mask & T_ANALOG_TV ? " TV" : ""); | |
9f3f71ef MCC |
727 | return 0; |
728 | } | |
e18f9444 | 729 | |
a2894e3f MCC |
730 | /** |
731 | * tuner_remove - detaches a tuner | |
732 | * | |
733 | * @client: i2c_client descriptor | |
734 | */ | |
735 | ||
9f3f71ef MCC |
736 | static int tuner_remove(struct i2c_client *client) |
737 | { | |
738 | struct tuner *t = to_tuner(i2c_get_clientdata(client)); | |
b9ef6bbb | 739 | |
9f3f71ef MCC |
740 | v4l2_device_unregister_subdev(&t->sd); |
741 | tuner_detach(&t->fe); | |
742 | t->fe.analog_demod_priv = NULL; | |
b9ef6bbb | 743 | |
9f3f71ef MCC |
744 | list_del(&t->list); |
745 | kfree(t); | |
746 | return 0; | |
1da177e4 LT |
747 | } |
748 | ||
0eec66c0 MCC |
749 | /* |
750 | * Functions to switch between Radio and TV | |
751 | * | |
752 | * A few cards have a separate I2C tuner for radio. Those routines | |
753 | * take care of switching between TV/Radio mode, filtering only the | |
754 | * commands that apply to the Radio or TV tuner. | |
755 | */ | |
756 | ||
757 | /** | |
758 | * check_mode - Verify if tuner supports the requested mode | |
759 | * @t: a pointer to the module's internal struct_tuner | |
760 | * | |
761 | * This function checks if the tuner is capable of tuning analog TV, | |
762 | * digital TV or radio, depending on what the caller wants. If the | |
763 | * tuner can't support that mode, it returns -EINVAL. Otherwise, it | |
764 | * returns 0. | |
765 | * This function is needed for boards that have a separate tuner for | |
766 | * radio (like devices with tea5767). | |
a1ad5ec7 MCC |
767 | * NOTE: mt20xx uses V4L2_TUNER_DIGITAL_TV and calls set_tv_freq to |
768 | * select a TV frequency. So, t_mode = T_ANALOG_TV could actually | |
769 | * be used to represent a Digital TV too. | |
0eec66c0 MCC |
770 | */ |
771 | static inline int check_mode(struct tuner *t, enum v4l2_tuner_type mode) | |
772 | { | |
a1ad5ec7 MCC |
773 | int t_mode; |
774 | if (mode == V4L2_TUNER_RADIO) | |
775 | t_mode = T_RADIO; | |
776 | else | |
777 | t_mode = T_ANALOG_TV; | |
778 | ||
779 | if ((t_mode & t->mode_mask) == 0) | |
0eec66c0 MCC |
780 | return -EINVAL; |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
785 | /** | |
4e4a31fb | 786 | * set_mode - Switch tuner to other mode. |
0eec66c0 MCC |
787 | * @t: a pointer to the module's internal struct_tuner |
788 | * @mode: enum v4l2_type (radio or TV) | |
0eec66c0 MCC |
789 | * |
790 | * If tuner doesn't support the needed mode (radio or TV), prints a | |
791 | * debug message and returns -EINVAL, changing its state to standby. | |
4e4a31fb | 792 | * Otherwise, changes the mode and returns 0. |
0eec66c0 | 793 | */ |
4e4a31fb | 794 | static int set_mode(struct tuner *t, enum v4l2_tuner_type mode) |
0eec66c0 MCC |
795 | { |
796 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
797 | ||
798 | if (mode != t->mode) { | |
799 | if (check_mode(t, mode) == -EINVAL) { | |
800 | tuner_dbg("Tuner doesn't support mode %d. " | |
801 | "Putting tuner to sleep\n", mode); | |
802 | t->standby = true; | |
803 | if (analog_ops->standby) | |
804 | analog_ops->standby(&t->fe); | |
805 | return -EINVAL; | |
806 | } | |
807 | t->mode = mode; | |
808 | tuner_dbg("Changing to mode %d\n", mode); | |
809 | } | |
4e4a31fb HV |
810 | return 0; |
811 | } | |
812 | ||
813 | /** | |
814 | * set_freq - Set the tuner to the desired frequency. | |
815 | * @t: a pointer to the module's internal struct_tuner | |
816 | * @freq: frequency to set (0 means to use the current frequency) | |
817 | */ | |
818 | static void set_freq(struct tuner *t, unsigned int freq) | |
819 | { | |
820 | struct i2c_client *client = v4l2_get_subdevdata(&t->sd); | |
821 | ||
0eec66c0 | 822 | if (t->mode == V4L2_TUNER_RADIO) { |
4e4a31fb HV |
823 | if (!freq) |
824 | freq = t->radio_freq; | |
825 | set_radio_freq(client, freq); | |
0eec66c0 | 826 | } else { |
4e4a31fb HV |
827 | if (!freq) |
828 | freq = t->tv_freq; | |
829 | set_tv_freq(client, freq); | |
0eec66c0 | 830 | } |
0eec66c0 MCC |
831 | } |
832 | ||
f7ce3cc6 | 833 | /* |
9f3f71ef MCC |
834 | * Functions that are specific for TV mode |
835 | */ | |
f7ce3cc6 | 836 | |
a2894e3f MCC |
837 | /** |
838 | * set_tv_freq - Set tuner frequency, freq in Units of 62.5 kHz = 1/16MHz | |
839 | * | |
840 | * @c: i2c_client descriptor | |
841 | * @freq: frequency | |
842 | */ | |
9f3f71ef | 843 | static void set_tv_freq(struct i2c_client *c, unsigned int freq) |
f7ce3cc6 | 844 | { |
e8a4a9e7 | 845 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
9f3f71ef | 846 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
f7ce3cc6 | 847 | |
9f3f71ef MCC |
848 | struct analog_parameters params = { |
849 | .mode = t->mode, | |
850 | .audmode = t->audmode, | |
851 | .std = t->std | |
852 | }; | |
56fc08ca | 853 | |
9f3f71ef | 854 | if (t->type == UNSET) { |
7d275bf8 | 855 | tuner_warn("tuner type not set\n"); |
9f3f71ef | 856 | return; |
793cf9e6 | 857 | } |
9f3f71ef | 858 | if (NULL == analog_ops->set_params) { |
7d275bf8 | 859 | tuner_warn("Tuner has no way to set tv freq\n"); |
9f3f71ef | 860 | return; |
56fc08ca | 861 | } |
9f3f71ef | 862 | if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) { |
7d275bf8 | 863 | tuner_dbg("TV freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
864 | freq / 16, freq % 16 * 100 / 16, tv_range[0], |
865 | tv_range[1]); | |
866 | /* V4L2 spec: if the freq is not possible then the closest | |
867 | possible value should be selected */ | |
868 | if (freq < tv_range[0] * 16) | |
869 | freq = tv_range[0] * 16; | |
870 | else | |
871 | freq = tv_range[1] * 16; | |
872 | } | |
873 | params.frequency = freq; | |
874 | tuner_dbg("tv freq set to %d.%02d\n", | |
875 | freq / 16, freq % 16 * 100 / 16); | |
876 | t->tv_freq = freq; | |
cbde6898 | 877 | t->standby = false; |
9f3f71ef MCC |
878 | |
879 | analog_ops->set_params(&t->fe, ¶ms); | |
56fc08ca | 880 | } |
56fc08ca | 881 | |
a2894e3f MCC |
882 | /** |
883 | * tuner_fixup_std - force a given video standard variant | |
884 | * | |
48783301 HV |
885 | * @t: tuner internal struct |
886 | * @std: TV standard | |
a2894e3f MCC |
887 | * |
888 | * A few devices or drivers have problem to detect some standard variations. | |
889 | * On other operational systems, the drivers generally have a per-country | |
890 | * code, and some logic to apply per-country hacks. V4L2 API doesn't provide | |
891 | * such hacks. Instead, it relies on a proper video standard selection from | |
892 | * the userspace application. However, as some apps are buggy, not allowing | |
893 | * to distinguish all video standard variations, a modprobe parameter can | |
894 | * be used to force a video standard match. | |
895 | */ | |
48783301 | 896 | static v4l2_std_id tuner_fixup_std(struct tuner *t, v4l2_std_id std) |
1da177e4 | 897 | { |
48783301 | 898 | if (pal[0] != '-' && (std & V4L2_STD_PAL) == V4L2_STD_PAL) { |
1da177e4 | 899 | switch (pal[0]) { |
e71ced1a | 900 | case '6': |
48783301 | 901 | return V4L2_STD_PAL_60; |
1da177e4 LT |
902 | case 'b': |
903 | case 'B': | |
904 | case 'g': | |
905 | case 'G': | |
48783301 | 906 | return V4L2_STD_PAL_BG; |
1da177e4 LT |
907 | case 'i': |
908 | case 'I': | |
48783301 | 909 | return V4L2_STD_PAL_I; |
1da177e4 LT |
910 | case 'd': |
911 | case 'D': | |
912 | case 'k': | |
913 | case 'K': | |
48783301 | 914 | return V4L2_STD_PAL_DK; |
f7ce3cc6 MCC |
915 | case 'M': |
916 | case 'm': | |
48783301 | 917 | return V4L2_STD_PAL_M; |
f7ce3cc6 MCC |
918 | case 'N': |
919 | case 'n': | |
48783301 HV |
920 | if (pal[1] == 'c' || pal[1] == 'C') |
921 | return V4L2_STD_PAL_Nc; | |
922 | return V4L2_STD_PAL_N; | |
21d4df37 | 923 | default: |
7d275bf8 | 924 | tuner_warn("pal= argument not recognised\n"); |
21d4df37 | 925 | break; |
1da177e4 LT |
926 | } |
927 | } | |
48783301 | 928 | if (secam[0] != '-' && (std & V4L2_STD_SECAM) == V4L2_STD_SECAM) { |
f7ce3cc6 | 929 | switch (secam[0]) { |
7e578191 MCC |
930 | case 'b': |
931 | case 'B': | |
932 | case 'g': | |
933 | case 'G': | |
934 | case 'h': | |
935 | case 'H': | |
48783301 HV |
936 | return V4L2_STD_SECAM_B | |
937 | V4L2_STD_SECAM_G | | |
938 | V4L2_STD_SECAM_H; | |
f7ce3cc6 MCC |
939 | case 'd': |
940 | case 'D': | |
941 | case 'k': | |
942 | case 'K': | |
48783301 | 943 | return V4L2_STD_SECAM_DK; |
f7ce3cc6 MCC |
944 | case 'l': |
945 | case 'L': | |
48783301 HV |
946 | if ((secam[1] == 'C') || (secam[1] == 'c')) |
947 | return V4L2_STD_SECAM_LC; | |
948 | return V4L2_STD_SECAM_L; | |
21d4df37 | 949 | default: |
7d275bf8 | 950 | tuner_warn("secam= argument not recognised\n"); |
21d4df37 | 951 | break; |
f7ce3cc6 MCC |
952 | } |
953 | } | |
954 | ||
48783301 | 955 | if (ntsc[0] != '-' && (std & V4L2_STD_NTSC) == V4L2_STD_NTSC) { |
7e578191 MCC |
956 | switch (ntsc[0]) { |
957 | case 'm': | |
958 | case 'M': | |
48783301 | 959 | return V4L2_STD_NTSC_M; |
7e578191 MCC |
960 | case 'j': |
961 | case 'J': | |
48783301 | 962 | return V4L2_STD_NTSC_M_JP; |
d97a11e0 HV |
963 | case 'k': |
964 | case 'K': | |
48783301 | 965 | return V4L2_STD_NTSC_M_KR; |
7e578191 MCC |
966 | default: |
967 | tuner_info("ntsc= argument not recognised\n"); | |
968 | break; | |
969 | } | |
970 | } | |
48783301 | 971 | return std; |
9f3f71ef MCC |
972 | } |
973 | ||
974 | /* | |
975 | * Functions that are specific for Radio mode | |
976 | */ | |
977 | ||
a2894e3f MCC |
978 | /** |
979 | * set_radio_freq - Set tuner frequency, freq in Units of 62.5 Hz = 1/16kHz | |
980 | * | |
981 | * @c: i2c_client descriptor | |
982 | * @freq: frequency | |
983 | */ | |
9f3f71ef MCC |
984 | static void set_radio_freq(struct i2c_client *c, unsigned int freq) |
985 | { | |
986 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); | |
987 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
988 | ||
989 | struct analog_parameters params = { | |
990 | .mode = t->mode, | |
991 | .audmode = t->audmode, | |
992 | .std = t->std | |
993 | }; | |
994 | ||
995 | if (t->type == UNSET) { | |
7d275bf8 | 996 | tuner_warn("tuner type not set\n"); |
9f3f71ef MCC |
997 | return; |
998 | } | |
999 | if (NULL == analog_ops->set_params) { | |
7d275bf8 | 1000 | tuner_warn("tuner has no way to set radio frequency\n"); |
9f3f71ef MCC |
1001 | return; |
1002 | } | |
1003 | if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) { | |
7d275bf8 | 1004 | tuner_dbg("radio freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
1005 | freq / 16000, freq % 16000 * 100 / 16000, |
1006 | radio_range[0], radio_range[1]); | |
1007 | /* V4L2 spec: if the freq is not possible then the closest | |
1008 | possible value should be selected */ | |
1009 | if (freq < radio_range[0] * 16000) | |
1010 | freq = radio_range[0] * 16000; | |
1011 | else | |
1012 | freq = radio_range[1] * 16000; | |
1013 | } | |
1014 | params.frequency = freq; | |
1015 | tuner_dbg("radio freq set to %d.%02d\n", | |
1016 | freq / 16000, freq % 16000 * 100 / 16000); | |
1017 | t->radio_freq = freq; | |
cbde6898 | 1018 | t->standby = false; |
9f3f71ef MCC |
1019 | |
1020 | analog_ops->set_params(&t->fe, ¶ms); | |
ba1066d2 HV |
1021 | /* |
1022 | * The tuner driver might decide to change the audmode if it only | |
1023 | * supports stereo, so update t->audmode. | |
1024 | */ | |
1025 | t->audmode = params.audmode; | |
9f3f71ef MCC |
1026 | } |
1027 | ||
0eec66c0 MCC |
1028 | /* |
1029 | * Debug function for reporting tuner status to userspace | |
9f3f71ef | 1030 | */ |
9f3f71ef | 1031 | |
cbde6898 MCC |
1032 | /** |
1033 | * tuner_status - Dumps the current tuner status at dmesg | |
1034 | * @fe: pointer to struct dvb_frontend | |
1035 | * | |
1036 | * This callback is used only for driver debug purposes, answering to | |
1037 | * VIDIOC_LOG_STATUS. No changes should happen on this call. | |
1038 | */ | |
4e9154b8 | 1039 | static void tuner_status(struct dvb_frontend *fe) |
7e578191 | 1040 | { |
4e9154b8 | 1041 | struct tuner *t = fe->analog_demod_priv; |
7e578191 | 1042 | unsigned long freq, freq_fraction; |
a07c8779 MK |
1043 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; |
1044 | struct analog_demod_ops *analog_ops = &fe->ops.analog_ops; | |
7e578191 MCC |
1045 | const char *p; |
1046 | ||
1047 | switch (t->mode) { | |
7d275bf8 MCC |
1048 | case V4L2_TUNER_RADIO: |
1049 | p = "radio"; | |
1050 | break; | |
a1ad5ec7 | 1051 | case V4L2_TUNER_DIGITAL_TV: /* Used by mt20xx */ |
7d275bf8 MCC |
1052 | p = "digital TV"; |
1053 | break; | |
1054 | case V4L2_TUNER_ANALOG_TV: | |
1055 | default: | |
1056 | p = "analog TV"; | |
1057 | break; | |
7e578191 MCC |
1058 | } |
1059 | if (t->mode == V4L2_TUNER_RADIO) { | |
27487d44 HV |
1060 | freq = t->radio_freq / 16000; |
1061 | freq_fraction = (t->radio_freq % 16000) * 100 / 16000; | |
7e578191 | 1062 | } else { |
27487d44 HV |
1063 | freq = t->tv_freq / 16; |
1064 | freq_fraction = (t->tv_freq % 16) * 100 / 16; | |
7e578191 | 1065 | } |
cbde6898 MCC |
1066 | tuner_info("Tuner mode: %s%s\n", p, |
1067 | t->standby ? " on standby mode" : ""); | |
7e578191 | 1068 | tuner_info("Frequency: %lu.%02lu MHz\n", freq, freq_fraction); |
4ae5c2e5 | 1069 | tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std); |
8a4b275f | 1070 | if (t->mode != V4L2_TUNER_RADIO) |
7d275bf8 | 1071 | return; |
e18f9444 MK |
1072 | if (fe_tuner_ops->get_status) { |
1073 | u32 tuner_status; | |
1074 | ||
1075 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1076 | if (tuner_status & TUNER_STATUS_LOCKED) | |
1077 | tuner_info("Tuner is locked.\n"); | |
1078 | if (tuner_status & TUNER_STATUS_STEREO) | |
1079 | tuner_info("Stereo: yes\n"); | |
1080 | } | |
bc3e5c7f MK |
1081 | if (analog_ops->has_signal) |
1082 | tuner_info("Signal strength: %d\n", | |
1083 | analog_ops->has_signal(fe)); | |
7e578191 | 1084 | } |
8a4b275f | 1085 | |
0eec66c0 MCC |
1086 | /* |
1087 | * Function to splicitly change mode to radio. Probably not needed anymore | |
1088 | */ | |
1089 | ||
1090 | static int tuner_s_radio(struct v4l2_subdev *sd) | |
1091 | { | |
1092 | struct tuner *t = to_tuner(sd); | |
0eec66c0 | 1093 | |
4e4a31fb HV |
1094 | if (set_mode(t, V4L2_TUNER_RADIO) == 0) |
1095 | set_freq(t, 0); | |
0eec66c0 MCC |
1096 | return 0; |
1097 | } | |
1098 | ||
1099 | /* | |
1100 | * Tuner callbacks to handle userspace ioctl's | |
1101 | */ | |
1102 | ||
cbde6898 MCC |
1103 | /** |
1104 | * tuner_s_power - controls the power state of the tuner | |
1105 | * @sd: pointer to struct v4l2_subdev | |
d16625e7 | 1106 | * @on: a zero value puts the tuner to sleep, non-zero wakes it up |
cbde6898 | 1107 | */ |
622b828a | 1108 | static int tuner_s_power(struct v4l2_subdev *sd, int on) |
e8a4a9e7 HV |
1109 | { |
1110 | struct tuner *t = to_tuner(sd); | |
bc3e5c7f | 1111 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1112 | |
d16625e7 HV |
1113 | if (on) { |
1114 | if (t->standby && set_mode(t, t->mode) == 0) { | |
1115 | tuner_dbg("Waking up tuner\n"); | |
1116 | set_freq(t, 0); | |
1117 | } | |
622b828a | 1118 | return 0; |
d16625e7 | 1119 | } |
622b828a | 1120 | |
16a5e53d | 1121 | tuner_dbg("Putting tuner to sleep\n"); |
cbde6898 | 1122 | t->standby = true; |
e8a4a9e7 HV |
1123 | if (analog_ops->standby) |
1124 | analog_ops->standby(&t->fe); | |
1125 | return 0; | |
1126 | } | |
5e453dc7 | 1127 | |
e8a4a9e7 HV |
1128 | static int tuner_s_std(struct v4l2_subdev *sd, v4l2_std_id std) |
1129 | { | |
1130 | struct tuner *t = to_tuner(sd); | |
f7ce3cc6 | 1131 | |
4e4a31fb | 1132 | if (set_mode(t, V4L2_TUNER_ANALOG_TV)) |
e8a4a9e7 | 1133 | return 0; |
f7ce3cc6 | 1134 | |
48783301 HV |
1135 | t->std = tuner_fixup_std(t, std); |
1136 | if (t->std != std) | |
1137 | tuner_dbg("Fixup standard %llx to %llx\n", std, t->std); | |
4e4a31fb | 1138 | set_freq(t, 0); |
e8a4a9e7 HV |
1139 | return 0; |
1140 | } | |
f7ce3cc6 | 1141 | |
b530a447 | 1142 | static int tuner_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) |
e8a4a9e7 HV |
1143 | { |
1144 | struct tuner *t = to_tuner(sd); | |
8a4b275f | 1145 | |
4e4a31fb HV |
1146 | if (set_mode(t, f->type) == 0) |
1147 | set_freq(t, f->frequency); | |
e8a4a9e7 HV |
1148 | return 0; |
1149 | } | |
f7ce3cc6 | 1150 | |
338e9e1a HV |
1151 | /** |
1152 | * tuner_g_frequency - Get the tuned frequency for the tuner | |
1153 | * @sd: pointer to struct v4l2_subdev | |
1154 | * @f: pointer to struct v4l2_frequency | |
1155 | * | |
1156 | * At return, the structure f will be filled with tuner frequency | |
1157 | * if the tuner matches the f->type. | |
1158 | * Note: f->type should be initialized before calling it. | |
1159 | * This is done by either video_ioctl2 or by the bridge driver. | |
1160 | */ | |
e8a4a9e7 HV |
1161 | static int tuner_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
1162 | { | |
1163 | struct tuner *t = to_tuner(sd); | |
1164 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
f7ce3cc6 | 1165 | |
cbde6898 | 1166 | if (check_mode(t, f->type) == -EINVAL) |
e8a4a9e7 | 1167 | return 0; |
5ad339a2 | 1168 | if (f->type == t->mode && fe_tuner_ops->get_frequency && !t->standby) { |
e8a4a9e7 HV |
1169 | u32 abs_freq; |
1170 | ||
1171 | fe_tuner_ops->get_frequency(&t->fe, &abs_freq); | |
1172 | f->frequency = (V4L2_TUNER_RADIO == t->mode) ? | |
75b697f7 JL |
1173 | DIV_ROUND_CLOSEST(abs_freq * 2, 125) : |
1174 | DIV_ROUND_CLOSEST(abs_freq, 62500); | |
cbde6898 | 1175 | } else { |
5ad339a2 | 1176 | f->frequency = (V4L2_TUNER_RADIO == f->type) ? |
cbde6898 | 1177 | t->radio_freq : t->tv_freq; |
e8a4a9e7 | 1178 | } |
e8a4a9e7 HV |
1179 | return 0; |
1180 | } | |
f7ce3cc6 | 1181 | |
338e9e1a HV |
1182 | /** |
1183 | * tuner_g_tuner - Fill in tuner information | |
1184 | * @sd: pointer to struct v4l2_subdev | |
1185 | * @vt: pointer to struct v4l2_tuner | |
1186 | * | |
1187 | * At return, the structure vt will be filled with tuner information | |
1188 | * if the tuner matches vt->type. | |
1189 | * Note: vt->type should be initialized before calling it. | |
1190 | * This is done by either video_ioctl2 or by the bridge driver. | |
1191 | */ | |
e8a4a9e7 HV |
1192 | static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
1193 | { | |
1194 | struct tuner *t = to_tuner(sd); | |
1195 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1196 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
1197 | ||
cbde6898 | 1198 | if (check_mode(t, vt->type) == -EINVAL) |
e8a4a9e7 | 1199 | return 0; |
5ad339a2 | 1200 | if (vt->type == t->mode && analog_ops->get_afc) |
e8a4a9e7 | 1201 | vt->afc = analog_ops->get_afc(&t->fe); |
030755bd MCC |
1202 | if (analog_ops->has_signal) |
1203 | vt->signal = analog_ops->has_signal(&t->fe); | |
c44ff8fa | 1204 | if (vt->type != V4L2_TUNER_RADIO) { |
e8a4a9e7 | 1205 | vt->capability |= V4L2_TUNER_CAP_NORM; |
e8a4a9e7 HV |
1206 | vt->rangelow = tv_range[0] * 16; |
1207 | vt->rangehigh = tv_range[1] * 16; | |
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | /* radio mode */ | |
5ad339a2 HV |
1212 | if (vt->type == t->mode) { |
1213 | vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; | |
1214 | if (fe_tuner_ops->get_status) { | |
1215 | u32 tuner_status; | |
1216 | ||
1217 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1218 | vt->rxsubchans = | |
1219 | (tuner_status & TUNER_STATUS_STEREO) ? | |
1220 | V4L2_TUNER_SUB_STEREO : | |
1221 | V4L2_TUNER_SUB_MONO; | |
1222 | } | |
5ad339a2 | 1223 | vt->audmode = t->audmode; |
1da177e4 | 1224 | } |
cbde6898 | 1225 | vt->capability |= V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO; |
e8a4a9e7 HV |
1226 | vt->rangelow = radio_range[0] * 16000; |
1227 | vt->rangehigh = radio_range[1] * 16000; | |
cbde6898 | 1228 | |
e8a4a9e7 HV |
1229 | return 0; |
1230 | } | |
1231 | ||
338e9e1a HV |
1232 | /** |
1233 | * tuner_s_tuner - Set the tuner's audio mode | |
1234 | * @sd: pointer to struct v4l2_subdev | |
1235 | * @vt: pointer to struct v4l2_tuner | |
1236 | * | |
1237 | * Sets the audio mode if the tuner matches vt->type. | |
1238 | * Note: vt->type should be initialized before calling it. | |
1239 | * This is done by either video_ioctl2 or by the bridge driver. | |
1240 | */ | |
2f73c7c5 | 1241 | static int tuner_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) |
e8a4a9e7 HV |
1242 | { |
1243 | struct tuner *t = to_tuner(sd); | |
e8a4a9e7 | 1244 | |
4e4a31fb | 1245 | if (set_mode(t, vt->type)) |
e8a4a9e7 HV |
1246 | return 0; |
1247 | ||
ba1066d2 | 1248 | if (t->mode == V4L2_TUNER_RADIO) { |
cbde6898 | 1249 | t->audmode = vt->audmode; |
ba1066d2 HV |
1250 | /* |
1251 | * For radio audmode can only be mono or stereo. Map any | |
1252 | * other values to stereo. The actual tuner driver that is | |
1253 | * called in set_radio_freq can decide to limit the audmode to | |
1254 | * mono if only mono is supported. | |
1255 | */ | |
1256 | if (t->audmode != V4L2_TUNER_MODE_MONO && | |
1257 | t->audmode != V4L2_TUNER_MODE_STEREO) | |
1258 | t->audmode = V4L2_TUNER_MODE_STEREO; | |
1259 | } | |
4e4a31fb | 1260 | set_freq(t, 0); |
cbde6898 | 1261 | |
e8a4a9e7 HV |
1262 | return 0; |
1263 | } | |
1264 | ||
1265 | static int tuner_log_status(struct v4l2_subdev *sd) | |
1266 | { | |
1267 | struct tuner *t = to_tuner(sd); | |
1268 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1da177e4 | 1269 | |
e8a4a9e7 HV |
1270 | if (analog_ops->tuner_status) |
1271 | analog_ops->tuner_status(&t->fe); | |
1da177e4 LT |
1272 | return 0; |
1273 | } | |
1274 | ||
5cbd28df MB |
1275 | #ifdef CONFIG_PM_SLEEP |
1276 | static int tuner_suspend(struct device *dev) | |
1da177e4 | 1277 | { |
5cbd28df | 1278 | struct i2c_client *c = to_i2c_client(dev); |
e8a4a9e7 | 1279 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e2f63d9b | 1280 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1281 | |
9dd659de | 1282 | tuner_dbg("suspend\n"); |
e2f63d9b MCC |
1283 | |
1284 | if (!t->standby && analog_ops->standby) | |
1285 | analog_ops->standby(&t->fe); | |
1286 | ||
1da177e4 LT |
1287 | return 0; |
1288 | } | |
1289 | ||
5cbd28df | 1290 | static int tuner_resume(struct device *dev) |
1da177e4 | 1291 | { |
5cbd28df | 1292 | struct i2c_client *c = to_i2c_client(dev); |
e8a4a9e7 | 1293 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
1da177e4 | 1294 | |
9dd659de | 1295 | tuner_dbg("resume\n"); |
e2f63d9b MCC |
1296 | |
1297 | if (!t->standby) | |
9bf0ef06 | 1298 | if (set_mode(t, t->mode) == 0) |
4e4a31fb | 1299 | set_freq(t, 0); |
e2f63d9b | 1300 | |
1da177e4 LT |
1301 | return 0; |
1302 | } | |
5cbd28df | 1303 | #endif |
1da177e4 | 1304 | |
75b4c260 HV |
1305 | static int tuner_command(struct i2c_client *client, unsigned cmd, void *arg) |
1306 | { | |
1307 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1308 | ||
1309 | /* TUNER_SET_CONFIG is still called by tuner-simple.c, so we have | |
1310 | to handle it here. | |
1311 | There must be a better way of doing this... */ | |
1312 | switch (cmd) { | |
1313 | case TUNER_SET_CONFIG: | |
1314 | return tuner_s_config(sd, arg); | |
1315 | } | |
1316 | return -ENOIOCTLCMD; | |
1317 | } | |
1318 | ||
a2894e3f MCC |
1319 | /* |
1320 | * Callback structs | |
1321 | */ | |
e8a4a9e7 HV |
1322 | |
1323 | static const struct v4l2_subdev_core_ops tuner_core_ops = { | |
1324 | .log_status = tuner_log_status, | |
f41737ec | 1325 | .s_std = tuner_s_std, |
622b828a | 1326 | .s_power = tuner_s_power, |
e8a4a9e7 HV |
1327 | }; |
1328 | ||
1329 | static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = { | |
e8a4a9e7 HV |
1330 | .s_radio = tuner_s_radio, |
1331 | .g_tuner = tuner_g_tuner, | |
1332 | .s_tuner = tuner_s_tuner, | |
1333 | .s_frequency = tuner_s_frequency, | |
1334 | .g_frequency = tuner_g_frequency, | |
1335 | .s_type_addr = tuner_s_type_addr, | |
1336 | .s_config = tuner_s_config, | |
1337 | }; | |
1338 | ||
1339 | static const struct v4l2_subdev_ops tuner_ops = { | |
1340 | .core = &tuner_core_ops, | |
1341 | .tuner = &tuner_tuner_ops, | |
1342 | }; | |
1343 | ||
a2894e3f MCC |
1344 | /* |
1345 | * I2C structs and module init functions | |
1346 | */ | |
1da177e4 | 1347 | |
5cbd28df MB |
1348 | static const struct dev_pm_ops tuner_pm_ops = { |
1349 | SET_SYSTEM_SLEEP_PM_OPS(tuner_suspend, tuner_resume) | |
1350 | }; | |
1351 | ||
af294867 JD |
1352 | static const struct i2c_device_id tuner_id[] = { |
1353 | { "tuner", }, /* autodetect */ | |
1354 | { } | |
1355 | }; | |
1356 | MODULE_DEVICE_TABLE(i2c, tuner_id); | |
1357 | ||
02a2098a HV |
1358 | static struct i2c_driver tuner_driver = { |
1359 | .driver = { | |
1360 | .owner = THIS_MODULE, | |
1361 | .name = "tuner", | |
5cbd28df | 1362 | .pm = &tuner_pm_ops, |
02a2098a HV |
1363 | }, |
1364 | .probe = tuner_probe, | |
1365 | .remove = tuner_remove, | |
1366 | .command = tuner_command, | |
02a2098a | 1367 | .id_table = tuner_id, |
1da177e4 | 1368 | }; |
1da177e4 | 1369 | |
c6e8d86f | 1370 | module_i2c_driver(tuner_driver); |
02a2098a | 1371 | |
9f3f71ef MCC |
1372 | MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners"); |
1373 | MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); | |
1374 | MODULE_LICENSE("GPL"); |