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 | ||
f9d32f25 | 46 | #define PREFIX (t->i2c->dev.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 | 134 | unsigned int type; /* chip type id */ |
cdcd141c | 135 | void *config; |
9f3f71ef MCC |
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 | ||
f1c9a281 MK |
221 | static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg) |
222 | { | |
223 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; | |
224 | struct tuner *t = fe->analog_demod_priv; | |
225 | ||
226 | if (fe_tuner_ops->set_config) | |
227 | return fe_tuner_ops->set_config(fe, priv_cfg); | |
228 | ||
229 | tuner_warn("Tuner frontend module has no way to set config\n"); | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
4e9154b8 | 234 | static void tuner_status(struct dvb_frontend *fe); |
1dde7a4f | 235 | |
106cf649 | 236 | static const struct analog_demod_ops tuner_analog_ops = { |
c7919d52 | 237 | .set_params = fe_set_params, |
1dde7a4f | 238 | .standby = fe_standby, |
f1c9a281 | 239 | .set_config = fe_set_config, |
1dde7a4f MK |
240 | .tuner_status = tuner_status |
241 | }; | |
242 | ||
9f3f71ef | 243 | /* |
0eec66c0 | 244 | * Functions to select between radio and TV and tuner probe/remove functions |
9f3f71ef | 245 | */ |
1da177e4 | 246 | |
a2894e3f MCC |
247 | /** |
248 | * set_type - Sets the tuner type for a given device | |
249 | * | |
5618dd29 | 250 | * @c: i2c_client descriptor |
a2894e3f MCC |
251 | * @type: type of the tuner (e. g. tuner number) |
252 | * @new_mode_mask: Indicates if tuner supports TV and/or Radio | |
cdcd141c OZ |
253 | * @new_config: an optional parameter used by a few tuners to adjust |
254 | internal parameters, like LNA mode | |
a2894e3f MCC |
255 | * @tuner_callback: an optional function to be called when switching |
256 | * to analog mode | |
257 | * | |
258 | * This function applys the tuner config to tuner specified | |
259 | * by tun_setup structure. It contains several per-tuner initialization "magic" | |
260 | */ | |
f7ce3cc6 | 261 | static void set_type(struct i2c_client *c, unsigned int type, |
cdcd141c | 262 | unsigned int new_mode_mask, void *new_config, |
d7cba043 | 263 | int (*tuner_callback) (void *dev, int component, int cmd, int arg)) |
1da177e4 | 264 | { |
e8a4a9e7 | 265 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e18f9444 | 266 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; |
bc3e5c7f | 267 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
586b0cab | 268 | unsigned char buffer[4]; |
d6eef494 | 269 | int tune_now = 1; |
1da177e4 | 270 | |
f7ce3cc6 | 271 | if (type == UNSET || type == TUNER_ABSENT) { |
7d275bf8 | 272 | tuner_dbg("tuner 0x%02x: Tuner type absent\n", c->addr); |
1da177e4 | 273 | return; |
f7ce3cc6 MCC |
274 | } |
275 | ||
80f90fba | 276 | t->type = type; |
cdcd141c | 277 | t->config = new_config; |
80f90fba HH |
278 | if (tuner_callback != NULL) { |
279 | tuner_dbg("defining GPIO callback\n"); | |
d7cba043 | 280 | t->fe.callback = tuner_callback; |
80f90fba HH |
281 | } |
282 | ||
b2083199 | 283 | /* discard private data, in case set_type() was previously called */ |
a07c8779 MK |
284 | tuner_detach(&t->fe); |
285 | t->fe.analog_demod_priv = NULL; | |
be2b85a1 | 286 | |
1da177e4 LT |
287 | switch (t->type) { |
288 | case TUNER_MT2032: | |
09fee5f8 MCC |
289 | if (!dvb_attach(microtune_attach, |
290 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
291 | goto attach_failed; | |
1da177e4 LT |
292 | break; |
293 | case TUNER_PHILIPS_TDA8290: | |
5bea1cd3 | 294 | { |
09fee5f8 | 295 | if (!dvb_attach(tda829x_attach, &t->fe, t->i2c->adapter, |
cdcd141c | 296 | t->i2c->addr, t->config)) |
09fee5f8 | 297 | goto attach_failed; |
5bea1cd3 MK |
298 | break; |
299 | } | |
586b0cab | 300 | case TUNER_TEA5767: |
a07c8779 MK |
301 | if (!dvb_attach(tea5767_attach, &t->fe, |
302 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 303 | goto attach_failed; |
f7ce3cc6 | 304 | t->mode_mask = T_RADIO; |
586b0cab | 305 | break; |
8573a9e6 | 306 | case TUNER_TEA5761: |
a07c8779 MK |
307 | if (!dvb_attach(tea5761_attach, &t->fe, |
308 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 309 | goto attach_failed; |
8573a9e6 MCC |
310 | t->mode_mask = T_RADIO; |
311 | break; | |
586b0cab | 312 | case TUNER_PHILIPS_FMD1216ME_MK3: |
27b93d8a | 313 | case TUNER_PHILIPS_FMD1216MEX_MK3: |
586b0cab MCC |
314 | buffer[0] = 0x0b; |
315 | buffer[1] = 0xdc; | |
316 | buffer[2] = 0x9c; | |
317 | buffer[3] = 0x60; | |
f7ce3cc6 | 318 | i2c_master_send(c, buffer, 4); |
586b0cab MCC |
319 | mdelay(1); |
320 | buffer[2] = 0x86; | |
321 | buffer[3] = 0x54; | |
f7ce3cc6 | 322 | i2c_master_send(c, buffer, 4); |
a07c8779 MK |
323 | if (!dvb_attach(simple_tuner_attach, &t->fe, |
324 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 325 | goto attach_failed; |
586b0cab | 326 | break; |
93df3413 HH |
327 | case TUNER_PHILIPS_TD1316: |
328 | buffer[0] = 0x0b; | |
329 | buffer[1] = 0xdc; | |
330 | buffer[2] = 0x86; | |
331 | buffer[3] = 0xa4; | |
a07c8779 MK |
332 | i2c_master_send(c, buffer, 4); |
333 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
334 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 335 | goto attach_failed; |
ac272ed7 | 336 | break; |
690c544c MCC |
337 | case TUNER_XC2028: |
338 | { | |
a37b4c9b ML |
339 | struct xc2028_config cfg = { |
340 | .i2c_adap = t->i2c->adapter, | |
341 | .i2c_addr = t->i2c->addr, | |
a37b4c9b | 342 | }; |
a07c8779 | 343 | if (!dvb_attach(xc2028_attach, &t->fe, &cfg)) |
b9ef6bbb | 344 | goto attach_failed; |
d6eef494 | 345 | tune_now = 0; |
690c544c MCC |
346 | break; |
347 | } | |
15396236 | 348 | case TUNER_TDA9887: |
09fee5f8 MCC |
349 | if (!dvb_attach(tda9887_attach, |
350 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
351 | goto attach_failed; | |
15396236 | 352 | break; |
27c685a4 | 353 | case TUNER_XC5000: |
b9ef6bbb | 354 | { |
900f734b MCC |
355 | struct xc5000_config xc5000_cfg = { |
356 | .i2c_address = t->i2c->addr, | |
357 | /* if_khz will be set at dvb_attach() */ | |
358 | .if_khz = 0, | |
359 | }; | |
360 | ||
a07c8779 | 361 | if (!dvb_attach(xc5000_attach, |
30650961 | 362 | &t->fe, t->i2c->adapter, &xc5000_cfg)) |
b9ef6bbb | 363 | goto attach_failed; |
d6eef494 | 364 | tune_now = 0; |
27c685a4 | 365 | break; |
b9ef6bbb | 366 | } |
f21cfaf6 MK |
367 | case TUNER_XC5000C: |
368 | { | |
369 | struct xc5000_config xc5000c_cfg = { | |
370 | .i2c_address = t->i2c->addr, | |
371 | /* if_khz will be set at dvb_attach() */ | |
372 | .if_khz = 0, | |
6fab81df | 373 | .chip_id = XC5000C, |
f21cfaf6 MK |
374 | }; |
375 | ||
376 | if (!dvb_attach(xc5000_attach, | |
377 | &t->fe, t->i2c->adapter, &xc5000c_cfg)) | |
378 | goto attach_failed; | |
379 | tune_now = 0; | |
380 | break; | |
381 | } | |
93463895 MK |
382 | case TUNER_NXP_TDA18271: |
383 | { | |
384 | struct tda18271_config cfg = { | |
e350d44f | 385 | .small_i2c = TDA18271_03_BYTE_CHUNK_INIT, |
93463895 MK |
386 | }; |
387 | ||
9f3f71ef MCC |
388 | if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr, |
389 | t->i2c->adapter, &cfg)) | |
390 | goto attach_failed; | |
391 | tune_now = 0; | |
392 | break; | |
393 | } | |
8d009a0c DF |
394 | case TUNER_XC4000: |
395 | { | |
396 | struct xc4000_config xc4000_cfg = { | |
397 | .i2c_address = t->i2c->addr, | |
8edeb6eb | 398 | /* FIXME: the correct parameters will be set */ |
399 | /* only when the digital dvb_attach() occurs */ | |
400 | .default_pm = 0, | |
401 | .dvb_amplitude = 0, | |
402 | .set_smoothedcvbs = 0, | |
403 | .if_khz = 0 | |
8d009a0c DF |
404 | }; |
405 | if (!dvb_attach(xc4000_attach, | |
406 | &t->fe, t->i2c->adapter, &xc4000_cfg)) | |
407 | goto attach_failed; | |
408 | tune_now = 0; | |
409 | break; | |
410 | } | |
9f3f71ef MCC |
411 | default: |
412 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
413 | t->i2c->adapter, t->i2c->addr, t->type)) | |
414 | goto attach_failed; | |
415 | ||
416 | break; | |
417 | } | |
418 | ||
419 | if ((NULL == analog_ops->set_params) && | |
420 | (fe_tuner_ops->set_analog_params)) { | |
421 | ||
422 | t->name = fe_tuner_ops->info.name; | |
423 | ||
424 | t->fe.analog_demod_priv = t; | |
425 | memcpy(analog_ops, &tuner_analog_ops, | |
426 | sizeof(struct analog_demod_ops)); | |
427 | ||
6f8ca0b5 | 428 | if (fe_tuner_ops->get_rf_strength) |
dfc2e12d | 429 | analog_ops->has_signal = fe_tuner_ops->get_rf_strength; |
6f8ca0b5 | 430 | if (fe_tuner_ops->get_afc) |
a2192cf4 | 431 | analog_ops->get_afc = fe_tuner_ops->get_afc; |
106cf649 | 432 | |
9f3f71ef MCC |
433 | } else { |
434 | t->name = analog_ops->info.name; | |
435 | } | |
436 | ||
437 | tuner_dbg("type set to %s\n", t->name); | |
438 | ||
cbde6898 | 439 | t->mode_mask = new_mode_mask; |
9f3f71ef MCC |
440 | |
441 | /* Some tuners require more initialization setup before use, | |
442 | such as firmware download or device calibration. | |
443 | trying to set a frequency here will just fail | |
444 | FIXME: better to move set_freq to the tuner code. This is needed | |
445 | on analog tuners for PLL to properly work | |
446 | */ | |
447 | if (tune_now) { | |
448 | if (V4L2_TUNER_RADIO == t->mode) | |
449 | set_radio_freq(c, t->radio_freq); | |
450 | else | |
451 | set_tv_freq(c, t->tv_freq); | |
452 | } | |
453 | ||
454 | tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n", | |
f9d32f25 | 455 | c->adapter->name, c->dev.driver->name, c->addr << 1, type, |
9f3f71ef MCC |
456 | t->mode_mask); |
457 | return; | |
458 | ||
459 | attach_failed: | |
460 | tuner_dbg("Tuner attach for type = %d failed.\n", t->type); | |
461 | t->type = TUNER_ABSENT; | |
9f3f71ef MCC |
462 | |
463 | return; | |
464 | } | |
465 | ||
0ae79d99 MCC |
466 | /** |
467 | * tuner_s_type_addr - Sets the tuner type for a device | |
468 | * | |
469 | * @sd: subdev descriptor | |
470 | * @tun_setup: type to be associated to a given tuner i2c address | |
471 | * | |
472 | * This function applys the tuner config to tuner specified | |
473 | * by tun_setup structure. | |
474 | * If tuner I2C address is UNSET, then it will only set the device | |
475 | * if the tuner supports the mode specified in the call. | |
476 | * If the address is specified, the change will be applied only if | |
477 | * tuner I2C address matches. | |
478 | * The call can change the tuner number and the tuner mode. | |
479 | */ | |
a34ec5f3 MCC |
480 | static int tuner_s_type_addr(struct v4l2_subdev *sd, |
481 | struct tuner_setup *tun_setup) | |
9f3f71ef | 482 | { |
a34ec5f3 MCC |
483 | struct tuner *t = to_tuner(sd); |
484 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
485 | ||
cdcd141c | 486 | tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=%p\n", |
a34ec5f3 MCC |
487 | tun_setup->type, |
488 | tun_setup->addr, | |
489 | tun_setup->mode_mask, | |
490 | tun_setup->config); | |
9f3f71ef | 491 | |
7d275bf8 MCC |
492 | if ((t->type == UNSET && ((tun_setup->addr == ADDR_UNSET) && |
493 | (t->mode_mask & tun_setup->mode_mask))) || | |
494 | (tun_setup->addr == c->addr)) { | |
cbde6898 MCC |
495 | set_type(c, tun_setup->type, tun_setup->mode_mask, |
496 | tun_setup->config, tun_setup->tuner_callback); | |
9f3f71ef MCC |
497 | } else |
498 | tuner_dbg("set addr discarded for type %i, mask %x. " | |
499 | "Asked to change tuner at addr 0x%02x, with mask %x\n", | |
500 | t->type, t->mode_mask, | |
501 | tun_setup->addr, tun_setup->mode_mask); | |
9f3f71ef | 502 | |
9f3f71ef MCC |
503 | return 0; |
504 | } | |
505 | ||
a2894e3f MCC |
506 | /** |
507 | * tuner_s_config - Sets tuner configuration | |
508 | * | |
509 | * @sd: subdev descriptor | |
510 | * @cfg: tuner configuration | |
511 | * | |
512 | * Calls tuner set_config() private function to set some tuner-internal | |
513 | * parameters | |
514 | */ | |
7d275bf8 MCC |
515 | static int tuner_s_config(struct v4l2_subdev *sd, |
516 | const struct v4l2_priv_tun_config *cfg) | |
9f3f71ef MCC |
517 | { |
518 | struct tuner *t = to_tuner(sd); | |
519 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
520 | ||
521 | if (t->type != cfg->tuner) | |
522 | return 0; | |
523 | ||
524 | if (analog_ops->set_config) { | |
525 | analog_ops->set_config(&t->fe, cfg->priv); | |
526 | return 0; | |
527 | } | |
528 | ||
529 | tuner_dbg("Tuner frontend module has no way to set config\n"); | |
530 | return 0; | |
531 | } | |
532 | ||
a2894e3f MCC |
533 | /** |
534 | * tuner_lookup - Seek for tuner adapters | |
535 | * | |
536 | * @adap: i2c_adapter struct | |
537 | * @radio: pointer to be filled if the adapter is radio | |
538 | * @tv: pointer to be filled if the adapter is TV | |
539 | * | |
540 | * Search for existing radio and/or TV tuners on the given I2C adapter, | |
541 | * discarding demod-only adapters (tda9887). | |
542 | * | |
543 | * Note that when this function is called from tuner_probe you can be | |
544 | * certain no other devices will be added/deleted at the same time, I2C | |
545 | * core protects against that. | |
546 | */ | |
9f3f71ef MCC |
547 | static void tuner_lookup(struct i2c_adapter *adap, |
548 | struct tuner **radio, struct tuner **tv) | |
549 | { | |
550 | struct tuner *pos; | |
551 | ||
552 | *radio = NULL; | |
553 | *tv = NULL; | |
554 | ||
555 | list_for_each_entry(pos, &tuner_list, list) { | |
556 | int mode_mask; | |
557 | ||
558 | if (pos->i2c->adapter != adap || | |
f9d32f25 | 559 | strcmp(pos->i2c->dev.driver->name, "tuner")) |
9f3f71ef MCC |
560 | continue; |
561 | ||
cbde6898 | 562 | mode_mask = pos->mode_mask; |
9f3f71ef MCC |
563 | if (*radio == NULL && mode_mask == T_RADIO) |
564 | *radio = pos; | |
565 | /* Note: currently TDA9887 is the only demod-only | |
566 | device. If other devices appear then we need to | |
567 | make this test more general. */ | |
568 | else if (*tv == NULL && pos->type != TUNER_TDA9887 && | |
ad020dc2 | 569 | (pos->mode_mask & T_ANALOG_TV)) |
9f3f71ef MCC |
570 | *tv = pos; |
571 | } | |
572 | } | |
573 | ||
a2894e3f MCC |
574 | /** |
575 | *tuner_probe - Probes the existing tuners on an I2C bus | |
576 | * | |
577 | * @client: i2c_client descriptor | |
578 | * @id: not used | |
579 | * | |
580 | * This routine probes for tuners at the expected I2C addresses. On most | |
581 | * cases, if a device answers to a given I2C address, it assumes that the | |
582 | * device is a tuner. On a few cases, however, an additional logic is needed | |
583 | * to double check if the device is really a tuner, or to identify the tuner | |
584 | * type, like on tea5767/5761 devices. | |
585 | * | |
586 | * During client attach, set_type is called by adapter's attach_inform callback. | |
587 | * set_type must then be completed by tuner_probe. | |
9f3f71ef MCC |
588 | */ |
589 | static int tuner_probe(struct i2c_client *client, | |
590 | const struct i2c_device_id *id) | |
591 | { | |
592 | struct tuner *t; | |
593 | struct tuner *radio; | |
594 | struct tuner *tv; | |
595 | ||
596 | t = kzalloc(sizeof(struct tuner), GFP_KERNEL); | |
597 | if (NULL == t) | |
598 | return -ENOMEM; | |
599 | v4l2_i2c_subdev_init(&t->sd, client, &tuner_ops); | |
600 | t->i2c = client; | |
601 | t->name = "(tuner unset)"; | |
602 | t->type = UNSET; | |
603 | t->audmode = V4L2_TUNER_MODE_STEREO; | |
22bf3deb | 604 | t->standby = true; |
cbde6898 MCC |
605 | t->radio_freq = 87.5 * 16000; /* Initial freq range */ |
606 | t->tv_freq = 400 * 16; /* Sets freq to VHF High - needed for some PLL's to properly start */ | |
9f3f71ef MCC |
607 | |
608 | if (show_i2c) { | |
609 | unsigned char buffer[16]; | |
610 | int i, rc; | |
611 | ||
612 | memset(buffer, 0, sizeof(buffer)); | |
613 | rc = i2c_master_recv(client, buffer, sizeof(buffer)); | |
614 | tuner_info("I2C RECV = "); | |
615 | for (i = 0; i < rc; i++) | |
616 | printk(KERN_CONT "%02x ", buffer[i]); | |
617 | printk("\n"); | |
618 | } | |
619 | ||
620 | /* autodetection code based on the i2c addr */ | |
621 | if (!no_autodetect) { | |
622 | switch (client->addr) { | |
623 | case 0x10: | |
624 | if (tuner_symbol_probe(tea5761_autodetection, | |
625 | t->i2c->adapter, | |
626 | t->i2c->addr) >= 0) { | |
627 | t->type = TUNER_TEA5761; | |
628 | t->mode_mask = T_RADIO; | |
9f3f71ef MCC |
629 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
630 | if (tv) | |
631 | tv->mode_mask &= ~T_RADIO; | |
632 | ||
633 | goto register_client; | |
634 | } | |
635 | kfree(t); | |
636 | return -ENODEV; | |
637 | case 0x42: | |
638 | case 0x43: | |
639 | case 0x4a: | |
640 | case 0x4b: | |
641 | /* If chip is not tda8290, don't register. | |
642 | since it can be tda9887*/ | |
643 | if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter, | |
644 | t->i2c->addr) >= 0) { | |
645 | tuner_dbg("tda829x detected\n"); | |
646 | } else { | |
647 | /* Default is being tda9887 */ | |
648 | t->type = TUNER_TDA9887; | |
ad020dc2 | 649 | t->mode_mask = T_RADIO | T_ANALOG_TV; |
9f3f71ef MCC |
650 | goto register_client; |
651 | } | |
652 | break; | |
653 | case 0x60: | |
654 | if (tuner_symbol_probe(tea5767_autodetection, | |
655 | t->i2c->adapter, t->i2c->addr) | |
656 | >= 0) { | |
657 | t->type = TUNER_TEA5767; | |
658 | t->mode_mask = T_RADIO; | |
9f3f71ef | 659 | /* Sets freq to FM range */ |
9f3f71ef MCC |
660 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
661 | if (tv) | |
662 | tv->mode_mask &= ~T_RADIO; | |
663 | ||
664 | goto register_client; | |
665 | } | |
666 | break; | |
667 | } | |
93463895 | 668 | } |
b9ef6bbb | 669 | |
9f3f71ef MCC |
670 | /* Initializes only the first TV tuner on this adapter. Why only the |
671 | first? Because there are some devices (notably the ones with TI | |
672 | tuners) that have more than one i2c address for the *same* device. | |
673 | Experience shows that, except for just one case, the first | |
674 | address is the right one. The exception is a Russian tuner | |
675 | (ACORP_Y878F). So, the desired behavior is just to enable the | |
676 | first found TV tuner. */ | |
677 | tuner_lookup(t->i2c->adapter, &radio, &tv); | |
678 | if (tv == NULL) { | |
ad020dc2 | 679 | t->mode_mask = T_ANALOG_TV; |
9f3f71ef MCC |
680 | if (radio == NULL) |
681 | t->mode_mask |= T_RADIO; | |
682 | tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask); | |
1da177e4 | 683 | } |
f7ce3cc6 | 684 | |
9f3f71ef MCC |
685 | /* Should be just before return */ |
686 | register_client: | |
9f3f71ef | 687 | /* Sets a default mode */ |
7d275bf8 | 688 | if (t->mode_mask & T_ANALOG_TV) |
9f3f71ef | 689 | t->mode = V4L2_TUNER_ANALOG_TV; |
7d275bf8 | 690 | else |
ad020dc2 | 691 | t->mode = V4L2_TUNER_RADIO; |
9f3f71ef MCC |
692 | set_type(client, t->type, t->mode_mask, t->config, t->fe.callback); |
693 | list_add_tail(&t->list, &tuner_list); | |
cbde6898 | 694 | |
ad020dc2 | 695 | tuner_info("Tuner %d found with type(s)%s%s.\n", |
cbde6898 | 696 | t->type, |
ad020dc2 MCC |
697 | t->mode_mask & T_RADIO ? " Radio" : "", |
698 | t->mode_mask & T_ANALOG_TV ? " TV" : ""); | |
9f3f71ef MCC |
699 | return 0; |
700 | } | |
e18f9444 | 701 | |
a2894e3f MCC |
702 | /** |
703 | * tuner_remove - detaches a tuner | |
704 | * | |
705 | * @client: i2c_client descriptor | |
706 | */ | |
707 | ||
9f3f71ef MCC |
708 | static int tuner_remove(struct i2c_client *client) |
709 | { | |
710 | struct tuner *t = to_tuner(i2c_get_clientdata(client)); | |
b9ef6bbb | 711 | |
9f3f71ef MCC |
712 | v4l2_device_unregister_subdev(&t->sd); |
713 | tuner_detach(&t->fe); | |
714 | t->fe.analog_demod_priv = NULL; | |
b9ef6bbb | 715 | |
9f3f71ef MCC |
716 | list_del(&t->list); |
717 | kfree(t); | |
718 | return 0; | |
1da177e4 LT |
719 | } |
720 | ||
0eec66c0 MCC |
721 | /* |
722 | * Functions to switch between Radio and TV | |
723 | * | |
724 | * A few cards have a separate I2C tuner for radio. Those routines | |
725 | * take care of switching between TV/Radio mode, filtering only the | |
726 | * commands that apply to the Radio or TV tuner. | |
727 | */ | |
728 | ||
729 | /** | |
730 | * check_mode - Verify if tuner supports the requested mode | |
731 | * @t: a pointer to the module's internal struct_tuner | |
732 | * | |
733 | * This function checks if the tuner is capable of tuning analog TV, | |
734 | * digital TV or radio, depending on what the caller wants. If the | |
735 | * tuner can't support that mode, it returns -EINVAL. Otherwise, it | |
736 | * returns 0. | |
737 | * This function is needed for boards that have a separate tuner for | |
738 | * radio (like devices with tea5767). | |
a1ad5ec7 MCC |
739 | * NOTE: mt20xx uses V4L2_TUNER_DIGITAL_TV and calls set_tv_freq to |
740 | * select a TV frequency. So, t_mode = T_ANALOG_TV could actually | |
741 | * be used to represent a Digital TV too. | |
0eec66c0 MCC |
742 | */ |
743 | static inline int check_mode(struct tuner *t, enum v4l2_tuner_type mode) | |
744 | { | |
a1ad5ec7 MCC |
745 | int t_mode; |
746 | if (mode == V4L2_TUNER_RADIO) | |
747 | t_mode = T_RADIO; | |
748 | else | |
749 | t_mode = T_ANALOG_TV; | |
750 | ||
751 | if ((t_mode & t->mode_mask) == 0) | |
0eec66c0 MCC |
752 | return -EINVAL; |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
757 | /** | |
4e4a31fb | 758 | * set_mode - Switch tuner to other mode. |
0eec66c0 MCC |
759 | * @t: a pointer to the module's internal struct_tuner |
760 | * @mode: enum v4l2_type (radio or TV) | |
0eec66c0 MCC |
761 | * |
762 | * If tuner doesn't support the needed mode (radio or TV), prints a | |
763 | * debug message and returns -EINVAL, changing its state to standby. | |
4e4a31fb | 764 | * Otherwise, changes the mode and returns 0. |
0eec66c0 | 765 | */ |
4e4a31fb | 766 | static int set_mode(struct tuner *t, enum v4l2_tuner_type mode) |
0eec66c0 MCC |
767 | { |
768 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
769 | ||
770 | if (mode != t->mode) { | |
771 | if (check_mode(t, mode) == -EINVAL) { | |
772 | tuner_dbg("Tuner doesn't support mode %d. " | |
773 | "Putting tuner to sleep\n", mode); | |
774 | t->standby = true; | |
775 | if (analog_ops->standby) | |
776 | analog_ops->standby(&t->fe); | |
777 | return -EINVAL; | |
778 | } | |
779 | t->mode = mode; | |
780 | tuner_dbg("Changing to mode %d\n", mode); | |
781 | } | |
4e4a31fb HV |
782 | return 0; |
783 | } | |
784 | ||
785 | /** | |
786 | * set_freq - Set the tuner to the desired frequency. | |
787 | * @t: a pointer to the module's internal struct_tuner | |
788 | * @freq: frequency to set (0 means to use the current frequency) | |
789 | */ | |
790 | static void set_freq(struct tuner *t, unsigned int freq) | |
791 | { | |
792 | struct i2c_client *client = v4l2_get_subdevdata(&t->sd); | |
793 | ||
0eec66c0 | 794 | if (t->mode == V4L2_TUNER_RADIO) { |
4e4a31fb HV |
795 | if (!freq) |
796 | freq = t->radio_freq; | |
797 | set_radio_freq(client, freq); | |
0eec66c0 | 798 | } else { |
4e4a31fb HV |
799 | if (!freq) |
800 | freq = t->tv_freq; | |
801 | set_tv_freq(client, freq); | |
0eec66c0 | 802 | } |
0eec66c0 MCC |
803 | } |
804 | ||
f7ce3cc6 | 805 | /* |
9f3f71ef MCC |
806 | * Functions that are specific for TV mode |
807 | */ | |
f7ce3cc6 | 808 | |
a2894e3f MCC |
809 | /** |
810 | * set_tv_freq - Set tuner frequency, freq in Units of 62.5 kHz = 1/16MHz | |
811 | * | |
812 | * @c: i2c_client descriptor | |
813 | * @freq: frequency | |
814 | */ | |
9f3f71ef | 815 | static void set_tv_freq(struct i2c_client *c, unsigned int freq) |
f7ce3cc6 | 816 | { |
e8a4a9e7 | 817 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
9f3f71ef | 818 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
f7ce3cc6 | 819 | |
9f3f71ef MCC |
820 | struct analog_parameters params = { |
821 | .mode = t->mode, | |
822 | .audmode = t->audmode, | |
823 | .std = t->std | |
824 | }; | |
56fc08ca | 825 | |
9f3f71ef | 826 | if (t->type == UNSET) { |
7d275bf8 | 827 | tuner_warn("tuner type not set\n"); |
9f3f71ef | 828 | return; |
793cf9e6 | 829 | } |
9f3f71ef | 830 | if (NULL == analog_ops->set_params) { |
7d275bf8 | 831 | tuner_warn("Tuner has no way to set tv freq\n"); |
9f3f71ef | 832 | return; |
56fc08ca | 833 | } |
9f3f71ef | 834 | if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) { |
7d275bf8 | 835 | tuner_dbg("TV freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
836 | freq / 16, freq % 16 * 100 / 16, tv_range[0], |
837 | tv_range[1]); | |
838 | /* V4L2 spec: if the freq is not possible then the closest | |
839 | possible value should be selected */ | |
840 | if (freq < tv_range[0] * 16) | |
841 | freq = tv_range[0] * 16; | |
842 | else | |
843 | freq = tv_range[1] * 16; | |
844 | } | |
845 | params.frequency = freq; | |
846 | tuner_dbg("tv freq set to %d.%02d\n", | |
847 | freq / 16, freq % 16 * 100 / 16); | |
848 | t->tv_freq = freq; | |
cbde6898 | 849 | t->standby = false; |
9f3f71ef MCC |
850 | |
851 | analog_ops->set_params(&t->fe, ¶ms); | |
56fc08ca | 852 | } |
56fc08ca | 853 | |
a2894e3f MCC |
854 | /** |
855 | * tuner_fixup_std - force a given video standard variant | |
856 | * | |
48783301 HV |
857 | * @t: tuner internal struct |
858 | * @std: TV standard | |
a2894e3f MCC |
859 | * |
860 | * A few devices or drivers have problem to detect some standard variations. | |
861 | * On other operational systems, the drivers generally have a per-country | |
862 | * code, and some logic to apply per-country hacks. V4L2 API doesn't provide | |
863 | * such hacks. Instead, it relies on a proper video standard selection from | |
864 | * the userspace application. However, as some apps are buggy, not allowing | |
865 | * to distinguish all video standard variations, a modprobe parameter can | |
866 | * be used to force a video standard match. | |
867 | */ | |
48783301 | 868 | static v4l2_std_id tuner_fixup_std(struct tuner *t, v4l2_std_id std) |
1da177e4 | 869 | { |
48783301 | 870 | if (pal[0] != '-' && (std & V4L2_STD_PAL) == V4L2_STD_PAL) { |
1da177e4 | 871 | switch (pal[0]) { |
e71ced1a | 872 | case '6': |
48783301 | 873 | return V4L2_STD_PAL_60; |
1da177e4 LT |
874 | case 'b': |
875 | case 'B': | |
876 | case 'g': | |
877 | case 'G': | |
48783301 | 878 | return V4L2_STD_PAL_BG; |
1da177e4 LT |
879 | case 'i': |
880 | case 'I': | |
48783301 | 881 | return V4L2_STD_PAL_I; |
1da177e4 LT |
882 | case 'd': |
883 | case 'D': | |
884 | case 'k': | |
885 | case 'K': | |
48783301 | 886 | return V4L2_STD_PAL_DK; |
f7ce3cc6 MCC |
887 | case 'M': |
888 | case 'm': | |
48783301 | 889 | return V4L2_STD_PAL_M; |
f7ce3cc6 MCC |
890 | case 'N': |
891 | case 'n': | |
48783301 HV |
892 | if (pal[1] == 'c' || pal[1] == 'C') |
893 | return V4L2_STD_PAL_Nc; | |
894 | return V4L2_STD_PAL_N; | |
21d4df37 | 895 | default: |
7d275bf8 | 896 | tuner_warn("pal= argument not recognised\n"); |
21d4df37 | 897 | break; |
1da177e4 LT |
898 | } |
899 | } | |
48783301 | 900 | if (secam[0] != '-' && (std & V4L2_STD_SECAM) == V4L2_STD_SECAM) { |
f7ce3cc6 | 901 | switch (secam[0]) { |
7e578191 MCC |
902 | case 'b': |
903 | case 'B': | |
904 | case 'g': | |
905 | case 'G': | |
906 | case 'h': | |
907 | case 'H': | |
48783301 HV |
908 | return V4L2_STD_SECAM_B | |
909 | V4L2_STD_SECAM_G | | |
910 | V4L2_STD_SECAM_H; | |
f7ce3cc6 MCC |
911 | case 'd': |
912 | case 'D': | |
913 | case 'k': | |
914 | case 'K': | |
48783301 | 915 | return V4L2_STD_SECAM_DK; |
f7ce3cc6 MCC |
916 | case 'l': |
917 | case 'L': | |
48783301 HV |
918 | if ((secam[1] == 'C') || (secam[1] == 'c')) |
919 | return V4L2_STD_SECAM_LC; | |
920 | return V4L2_STD_SECAM_L; | |
21d4df37 | 921 | default: |
7d275bf8 | 922 | tuner_warn("secam= argument not recognised\n"); |
21d4df37 | 923 | break; |
f7ce3cc6 MCC |
924 | } |
925 | } | |
926 | ||
48783301 | 927 | if (ntsc[0] != '-' && (std & V4L2_STD_NTSC) == V4L2_STD_NTSC) { |
7e578191 MCC |
928 | switch (ntsc[0]) { |
929 | case 'm': | |
930 | case 'M': | |
48783301 | 931 | return V4L2_STD_NTSC_M; |
7e578191 MCC |
932 | case 'j': |
933 | case 'J': | |
48783301 | 934 | return V4L2_STD_NTSC_M_JP; |
d97a11e0 HV |
935 | case 'k': |
936 | case 'K': | |
48783301 | 937 | return V4L2_STD_NTSC_M_KR; |
7e578191 MCC |
938 | default: |
939 | tuner_info("ntsc= argument not recognised\n"); | |
940 | break; | |
941 | } | |
942 | } | |
48783301 | 943 | return std; |
9f3f71ef MCC |
944 | } |
945 | ||
946 | /* | |
947 | * Functions that are specific for Radio mode | |
948 | */ | |
949 | ||
a2894e3f MCC |
950 | /** |
951 | * set_radio_freq - Set tuner frequency, freq in Units of 62.5 Hz = 1/16kHz | |
952 | * | |
953 | * @c: i2c_client descriptor | |
954 | * @freq: frequency | |
955 | */ | |
9f3f71ef MCC |
956 | static void set_radio_freq(struct i2c_client *c, unsigned int freq) |
957 | { | |
958 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); | |
959 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
960 | ||
961 | struct analog_parameters params = { | |
962 | .mode = t->mode, | |
963 | .audmode = t->audmode, | |
964 | .std = t->std | |
965 | }; | |
966 | ||
967 | if (t->type == UNSET) { | |
7d275bf8 | 968 | tuner_warn("tuner type not set\n"); |
9f3f71ef MCC |
969 | return; |
970 | } | |
971 | if (NULL == analog_ops->set_params) { | |
7d275bf8 | 972 | tuner_warn("tuner has no way to set radio frequency\n"); |
9f3f71ef MCC |
973 | return; |
974 | } | |
975 | if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) { | |
7d275bf8 | 976 | tuner_dbg("radio freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
977 | freq / 16000, freq % 16000 * 100 / 16000, |
978 | radio_range[0], radio_range[1]); | |
979 | /* V4L2 spec: if the freq is not possible then the closest | |
980 | possible value should be selected */ | |
981 | if (freq < radio_range[0] * 16000) | |
982 | freq = radio_range[0] * 16000; | |
983 | else | |
984 | freq = radio_range[1] * 16000; | |
985 | } | |
986 | params.frequency = freq; | |
987 | tuner_dbg("radio freq set to %d.%02d\n", | |
988 | freq / 16000, freq % 16000 * 100 / 16000); | |
989 | t->radio_freq = freq; | |
cbde6898 | 990 | t->standby = false; |
9f3f71ef MCC |
991 | |
992 | analog_ops->set_params(&t->fe, ¶ms); | |
ba1066d2 HV |
993 | /* |
994 | * The tuner driver might decide to change the audmode if it only | |
995 | * supports stereo, so update t->audmode. | |
996 | */ | |
997 | t->audmode = params.audmode; | |
9f3f71ef MCC |
998 | } |
999 | ||
0eec66c0 MCC |
1000 | /* |
1001 | * Debug function for reporting tuner status to userspace | |
9f3f71ef | 1002 | */ |
9f3f71ef | 1003 | |
cbde6898 MCC |
1004 | /** |
1005 | * tuner_status - Dumps the current tuner status at dmesg | |
1006 | * @fe: pointer to struct dvb_frontend | |
1007 | * | |
1008 | * This callback is used only for driver debug purposes, answering to | |
1009 | * VIDIOC_LOG_STATUS. No changes should happen on this call. | |
1010 | */ | |
4e9154b8 | 1011 | static void tuner_status(struct dvb_frontend *fe) |
7e578191 | 1012 | { |
4e9154b8 | 1013 | struct tuner *t = fe->analog_demod_priv; |
7e578191 | 1014 | unsigned long freq, freq_fraction; |
a07c8779 MK |
1015 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; |
1016 | struct analog_demod_ops *analog_ops = &fe->ops.analog_ops; | |
7e578191 MCC |
1017 | const char *p; |
1018 | ||
1019 | switch (t->mode) { | |
7d275bf8 MCC |
1020 | case V4L2_TUNER_RADIO: |
1021 | p = "radio"; | |
1022 | break; | |
a1ad5ec7 | 1023 | case V4L2_TUNER_DIGITAL_TV: /* Used by mt20xx */ |
7d275bf8 MCC |
1024 | p = "digital TV"; |
1025 | break; | |
1026 | case V4L2_TUNER_ANALOG_TV: | |
1027 | default: | |
1028 | p = "analog TV"; | |
1029 | break; | |
7e578191 MCC |
1030 | } |
1031 | if (t->mode == V4L2_TUNER_RADIO) { | |
27487d44 HV |
1032 | freq = t->radio_freq / 16000; |
1033 | freq_fraction = (t->radio_freq % 16000) * 100 / 16000; | |
7e578191 | 1034 | } else { |
27487d44 HV |
1035 | freq = t->tv_freq / 16; |
1036 | freq_fraction = (t->tv_freq % 16) * 100 / 16; | |
7e578191 | 1037 | } |
cbde6898 MCC |
1038 | tuner_info("Tuner mode: %s%s\n", p, |
1039 | t->standby ? " on standby mode" : ""); | |
7e578191 | 1040 | tuner_info("Frequency: %lu.%02lu MHz\n", freq, freq_fraction); |
4ae5c2e5 | 1041 | tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std); |
8a4b275f | 1042 | if (t->mode != V4L2_TUNER_RADIO) |
7d275bf8 | 1043 | return; |
e18f9444 MK |
1044 | if (fe_tuner_ops->get_status) { |
1045 | u32 tuner_status; | |
1046 | ||
1047 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1048 | if (tuner_status & TUNER_STATUS_LOCKED) | |
1049 | tuner_info("Tuner is locked.\n"); | |
1050 | if (tuner_status & TUNER_STATUS_STEREO) | |
1051 | tuner_info("Stereo: yes\n"); | |
1052 | } | |
dfc2e12d HV |
1053 | if (analog_ops->has_signal) { |
1054 | u16 signal; | |
1055 | ||
1056 | if (!analog_ops->has_signal(fe, &signal)) | |
1057 | tuner_info("Signal strength: %hu\n", signal); | |
1058 | } | |
7e578191 | 1059 | } |
8a4b275f | 1060 | |
0eec66c0 MCC |
1061 | /* |
1062 | * Function to splicitly change mode to radio. Probably not needed anymore | |
1063 | */ | |
1064 | ||
1065 | static int tuner_s_radio(struct v4l2_subdev *sd) | |
1066 | { | |
1067 | struct tuner *t = to_tuner(sd); | |
0eec66c0 | 1068 | |
4e4a31fb HV |
1069 | if (set_mode(t, V4L2_TUNER_RADIO) == 0) |
1070 | set_freq(t, 0); | |
0eec66c0 MCC |
1071 | return 0; |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * Tuner callbacks to handle userspace ioctl's | |
1076 | */ | |
1077 | ||
cbde6898 MCC |
1078 | /** |
1079 | * tuner_s_power - controls the power state of the tuner | |
1080 | * @sd: pointer to struct v4l2_subdev | |
d16625e7 | 1081 | * @on: a zero value puts the tuner to sleep, non-zero wakes it up |
cbde6898 | 1082 | */ |
622b828a | 1083 | static int tuner_s_power(struct v4l2_subdev *sd, int on) |
e8a4a9e7 HV |
1084 | { |
1085 | struct tuner *t = to_tuner(sd); | |
bc3e5c7f | 1086 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1087 | |
d16625e7 HV |
1088 | if (on) { |
1089 | if (t->standby && set_mode(t, t->mode) == 0) { | |
1090 | tuner_dbg("Waking up tuner\n"); | |
1091 | set_freq(t, 0); | |
1092 | } | |
622b828a | 1093 | return 0; |
d16625e7 | 1094 | } |
622b828a | 1095 | |
16a5e53d | 1096 | tuner_dbg("Putting tuner to sleep\n"); |
cbde6898 | 1097 | t->standby = true; |
e8a4a9e7 HV |
1098 | if (analog_ops->standby) |
1099 | analog_ops->standby(&t->fe); | |
1100 | return 0; | |
1101 | } | |
5e453dc7 | 1102 | |
e8a4a9e7 HV |
1103 | static int tuner_s_std(struct v4l2_subdev *sd, v4l2_std_id std) |
1104 | { | |
1105 | struct tuner *t = to_tuner(sd); | |
f7ce3cc6 | 1106 | |
4e4a31fb | 1107 | if (set_mode(t, V4L2_TUNER_ANALOG_TV)) |
e8a4a9e7 | 1108 | return 0; |
f7ce3cc6 | 1109 | |
48783301 HV |
1110 | t->std = tuner_fixup_std(t, std); |
1111 | if (t->std != std) | |
1112 | tuner_dbg("Fixup standard %llx to %llx\n", std, t->std); | |
4e4a31fb | 1113 | set_freq(t, 0); |
e8a4a9e7 HV |
1114 | return 0; |
1115 | } | |
f7ce3cc6 | 1116 | |
b530a447 | 1117 | static int tuner_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) |
e8a4a9e7 HV |
1118 | { |
1119 | struct tuner *t = to_tuner(sd); | |
8a4b275f | 1120 | |
4e4a31fb HV |
1121 | if (set_mode(t, f->type) == 0) |
1122 | set_freq(t, f->frequency); | |
e8a4a9e7 HV |
1123 | return 0; |
1124 | } | |
f7ce3cc6 | 1125 | |
338e9e1a HV |
1126 | /** |
1127 | * tuner_g_frequency - Get the tuned frequency for the tuner | |
1128 | * @sd: pointer to struct v4l2_subdev | |
1129 | * @f: pointer to struct v4l2_frequency | |
1130 | * | |
1131 | * At return, the structure f will be filled with tuner frequency | |
1132 | * if the tuner matches the f->type. | |
1133 | * Note: f->type should be initialized before calling it. | |
1134 | * This is done by either video_ioctl2 or by the bridge driver. | |
1135 | */ | |
e8a4a9e7 HV |
1136 | static int tuner_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
1137 | { | |
1138 | struct tuner *t = to_tuner(sd); | |
1139 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
f7ce3cc6 | 1140 | |
cbde6898 | 1141 | if (check_mode(t, f->type) == -EINVAL) |
e8a4a9e7 | 1142 | return 0; |
5ad339a2 | 1143 | if (f->type == t->mode && fe_tuner_ops->get_frequency && !t->standby) { |
e8a4a9e7 HV |
1144 | u32 abs_freq; |
1145 | ||
1146 | fe_tuner_ops->get_frequency(&t->fe, &abs_freq); | |
1147 | f->frequency = (V4L2_TUNER_RADIO == t->mode) ? | |
75b697f7 JL |
1148 | DIV_ROUND_CLOSEST(abs_freq * 2, 125) : |
1149 | DIV_ROUND_CLOSEST(abs_freq, 62500); | |
cbde6898 | 1150 | } else { |
5ad339a2 | 1151 | f->frequency = (V4L2_TUNER_RADIO == f->type) ? |
cbde6898 | 1152 | t->radio_freq : t->tv_freq; |
e8a4a9e7 | 1153 | } |
e8a4a9e7 HV |
1154 | return 0; |
1155 | } | |
f7ce3cc6 | 1156 | |
338e9e1a HV |
1157 | /** |
1158 | * tuner_g_tuner - Fill in tuner information | |
1159 | * @sd: pointer to struct v4l2_subdev | |
1160 | * @vt: pointer to struct v4l2_tuner | |
1161 | * | |
1162 | * At return, the structure vt will be filled with tuner information | |
1163 | * if the tuner matches vt->type. | |
1164 | * Note: vt->type should be initialized before calling it. | |
1165 | * This is done by either video_ioctl2 or by the bridge driver. | |
1166 | */ | |
e8a4a9e7 HV |
1167 | static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
1168 | { | |
1169 | struct tuner *t = to_tuner(sd); | |
1170 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1171 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
1172 | ||
cbde6898 | 1173 | if (check_mode(t, vt->type) == -EINVAL) |
e8a4a9e7 | 1174 | return 0; |
5ad339a2 | 1175 | if (vt->type == t->mode && analog_ops->get_afc) |
a2192cf4 | 1176 | analog_ops->get_afc(&t->fe, &vt->afc); |
dfc2e12d HV |
1177 | if (vt->type == t->mode && analog_ops->has_signal) { |
1178 | u16 signal = (u16)vt->signal; | |
1179 | ||
1180 | if (!analog_ops->has_signal(&t->fe, &signal)) | |
1181 | vt->signal = signal; | |
1182 | } | |
c44ff8fa | 1183 | if (vt->type != V4L2_TUNER_RADIO) { |
e8a4a9e7 | 1184 | vt->capability |= V4L2_TUNER_CAP_NORM; |
e8a4a9e7 HV |
1185 | vt->rangelow = tv_range[0] * 16; |
1186 | vt->rangehigh = tv_range[1] * 16; | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | /* radio mode */ | |
5ad339a2 HV |
1191 | if (vt->type == t->mode) { |
1192 | vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; | |
1193 | if (fe_tuner_ops->get_status) { | |
1194 | u32 tuner_status; | |
1195 | ||
1196 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1197 | vt->rxsubchans = | |
1198 | (tuner_status & TUNER_STATUS_STEREO) ? | |
1199 | V4L2_TUNER_SUB_STEREO : | |
1200 | V4L2_TUNER_SUB_MONO; | |
1201 | } | |
5ad339a2 | 1202 | vt->audmode = t->audmode; |
1da177e4 | 1203 | } |
cbde6898 | 1204 | vt->capability |= V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO; |
e8a4a9e7 HV |
1205 | vt->rangelow = radio_range[0] * 16000; |
1206 | vt->rangehigh = radio_range[1] * 16000; | |
cbde6898 | 1207 | |
e8a4a9e7 HV |
1208 | return 0; |
1209 | } | |
1210 | ||
338e9e1a HV |
1211 | /** |
1212 | * tuner_s_tuner - Set the tuner's audio mode | |
1213 | * @sd: pointer to struct v4l2_subdev | |
1214 | * @vt: pointer to struct v4l2_tuner | |
1215 | * | |
1216 | * Sets the audio mode if the tuner matches vt->type. | |
1217 | * Note: vt->type should be initialized before calling it. | |
1218 | * This is done by either video_ioctl2 or by the bridge driver. | |
1219 | */ | |
2f73c7c5 | 1220 | static int tuner_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) |
e8a4a9e7 HV |
1221 | { |
1222 | struct tuner *t = to_tuner(sd); | |
e8a4a9e7 | 1223 | |
4e4a31fb | 1224 | if (set_mode(t, vt->type)) |
e8a4a9e7 HV |
1225 | return 0; |
1226 | ||
ba1066d2 | 1227 | if (t->mode == V4L2_TUNER_RADIO) { |
cbde6898 | 1228 | t->audmode = vt->audmode; |
ba1066d2 HV |
1229 | /* |
1230 | * For radio audmode can only be mono or stereo. Map any | |
1231 | * other values to stereo. The actual tuner driver that is | |
1232 | * called in set_radio_freq can decide to limit the audmode to | |
1233 | * mono if only mono is supported. | |
1234 | */ | |
1235 | if (t->audmode != V4L2_TUNER_MODE_MONO && | |
1236 | t->audmode != V4L2_TUNER_MODE_STEREO) | |
1237 | t->audmode = V4L2_TUNER_MODE_STEREO; | |
1238 | } | |
4e4a31fb | 1239 | set_freq(t, 0); |
cbde6898 | 1240 | |
e8a4a9e7 HV |
1241 | return 0; |
1242 | } | |
1243 | ||
1244 | static int tuner_log_status(struct v4l2_subdev *sd) | |
1245 | { | |
1246 | struct tuner *t = to_tuner(sd); | |
1247 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1da177e4 | 1248 | |
e8a4a9e7 HV |
1249 | if (analog_ops->tuner_status) |
1250 | analog_ops->tuner_status(&t->fe); | |
1da177e4 LT |
1251 | return 0; |
1252 | } | |
1253 | ||
5cbd28df MB |
1254 | #ifdef CONFIG_PM_SLEEP |
1255 | static int tuner_suspend(struct device *dev) | |
1da177e4 | 1256 | { |
5cbd28df | 1257 | struct i2c_client *c = to_i2c_client(dev); |
e8a4a9e7 | 1258 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e2f63d9b | 1259 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1260 | |
9dd659de | 1261 | tuner_dbg("suspend\n"); |
e2f63d9b | 1262 | |
59d7889a MCC |
1263 | if (t->fe.ops.tuner_ops.suspend) |
1264 | t->fe.ops.tuner_ops.suspend(&t->fe); | |
1265 | else if (!t->standby && analog_ops->standby) | |
e2f63d9b MCC |
1266 | analog_ops->standby(&t->fe); |
1267 | ||
1da177e4 LT |
1268 | return 0; |
1269 | } | |
1270 | ||
5cbd28df | 1271 | static int tuner_resume(struct device *dev) |
1da177e4 | 1272 | { |
5cbd28df | 1273 | struct i2c_client *c = to_i2c_client(dev); |
e8a4a9e7 | 1274 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
1da177e4 | 1275 | |
9dd659de | 1276 | tuner_dbg("resume\n"); |
e2f63d9b | 1277 | |
59d7889a MCC |
1278 | if (t->fe.ops.tuner_ops.resume) |
1279 | t->fe.ops.tuner_ops.resume(&t->fe); | |
1280 | else if (!t->standby) | |
9bf0ef06 | 1281 | if (set_mode(t, t->mode) == 0) |
4e4a31fb | 1282 | set_freq(t, 0); |
e2f63d9b | 1283 | |
1da177e4 LT |
1284 | return 0; |
1285 | } | |
5cbd28df | 1286 | #endif |
1da177e4 | 1287 | |
75b4c260 HV |
1288 | static int tuner_command(struct i2c_client *client, unsigned cmd, void *arg) |
1289 | { | |
1290 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1291 | ||
1292 | /* TUNER_SET_CONFIG is still called by tuner-simple.c, so we have | |
1293 | to handle it here. | |
1294 | There must be a better way of doing this... */ | |
1295 | switch (cmd) { | |
1296 | case TUNER_SET_CONFIG: | |
1297 | return tuner_s_config(sd, arg); | |
1298 | } | |
1299 | return -ENOIOCTLCMD; | |
1300 | } | |
1301 | ||
a2894e3f MCC |
1302 | /* |
1303 | * Callback structs | |
1304 | */ | |
e8a4a9e7 HV |
1305 | |
1306 | static const struct v4l2_subdev_core_ops tuner_core_ops = { | |
1307 | .log_status = tuner_log_status, | |
622b828a | 1308 | .s_power = tuner_s_power, |
e8a4a9e7 HV |
1309 | }; |
1310 | ||
1311 | static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = { | |
e8a4a9e7 HV |
1312 | .s_radio = tuner_s_radio, |
1313 | .g_tuner = tuner_g_tuner, | |
1314 | .s_tuner = tuner_s_tuner, | |
1315 | .s_frequency = tuner_s_frequency, | |
1316 | .g_frequency = tuner_g_frequency, | |
1317 | .s_type_addr = tuner_s_type_addr, | |
1318 | .s_config = tuner_s_config, | |
1319 | }; | |
1320 | ||
8774bed9 LP |
1321 | static const struct v4l2_subdev_video_ops tuner_video_ops = { |
1322 | .s_std = tuner_s_std, | |
1323 | }; | |
1324 | ||
e8a4a9e7 HV |
1325 | static const struct v4l2_subdev_ops tuner_ops = { |
1326 | .core = &tuner_core_ops, | |
1327 | .tuner = &tuner_tuner_ops, | |
8774bed9 | 1328 | .video = &tuner_video_ops, |
e8a4a9e7 HV |
1329 | }; |
1330 | ||
a2894e3f MCC |
1331 | /* |
1332 | * I2C structs and module init functions | |
1333 | */ | |
1da177e4 | 1334 | |
5cbd28df MB |
1335 | static const struct dev_pm_ops tuner_pm_ops = { |
1336 | SET_SYSTEM_SLEEP_PM_OPS(tuner_suspend, tuner_resume) | |
1337 | }; | |
1338 | ||
af294867 JD |
1339 | static const struct i2c_device_id tuner_id[] = { |
1340 | { "tuner", }, /* autodetect */ | |
1341 | { } | |
1342 | }; | |
1343 | MODULE_DEVICE_TABLE(i2c, tuner_id); | |
1344 | ||
02a2098a HV |
1345 | static struct i2c_driver tuner_driver = { |
1346 | .driver = { | |
1347 | .owner = THIS_MODULE, | |
1348 | .name = "tuner", | |
5cbd28df | 1349 | .pm = &tuner_pm_ops, |
02a2098a HV |
1350 | }, |
1351 | .probe = tuner_probe, | |
1352 | .remove = tuner_remove, | |
1353 | .command = tuner_command, | |
02a2098a | 1354 | .id_table = tuner_id, |
1da177e4 | 1355 | }; |
1da177e4 | 1356 | |
c6e8d86f | 1357 | module_i2c_driver(tuner_driver); |
02a2098a | 1358 | |
9f3f71ef MCC |
1359 | MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners"); |
1360 | MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); | |
1361 | MODULE_LICENSE("GPL"); |