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 | ||
f1c9a281 MK |
231 | static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg) |
232 | { | |
233 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; | |
234 | struct tuner *t = fe->analog_demod_priv; | |
235 | ||
236 | if (fe_tuner_ops->set_config) | |
237 | return fe_tuner_ops->set_config(fe, priv_cfg); | |
238 | ||
239 | tuner_warn("Tuner frontend module has no way to set config\n"); | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
4e9154b8 | 244 | static void tuner_status(struct dvb_frontend *fe); |
1dde7a4f | 245 | |
e8a4a9e7 | 246 | static struct analog_demod_ops tuner_analog_ops = { |
c7919d52 | 247 | .set_params = fe_set_params, |
1dde7a4f | 248 | .standby = fe_standby, |
1dde7a4f | 249 | .has_signal = fe_has_signal, |
f1c9a281 | 250 | .set_config = fe_set_config, |
1dde7a4f MK |
251 | .tuner_status = tuner_status |
252 | }; | |
253 | ||
9f3f71ef | 254 | /* |
0eec66c0 | 255 | * Functions to select between radio and TV and tuner probe/remove functions |
9f3f71ef | 256 | */ |
1da177e4 | 257 | |
a2894e3f MCC |
258 | /** |
259 | * set_type - Sets the tuner type for a given device | |
260 | * | |
261 | * @c: i2c_client descriptoy | |
262 | * @type: type of the tuner (e. g. tuner number) | |
263 | * @new_mode_mask: Indicates if tuner supports TV and/or Radio | |
264 | * @new_config: an optional parameter ranging from 0-255 used by | |
265 | a few tuners to adjust an internal parameter, | |
266 | like LNA mode | |
267 | * @tuner_callback: an optional function to be called when switching | |
268 | * to analog mode | |
269 | * | |
270 | * This function applys the tuner config to tuner specified | |
271 | * by tun_setup structure. It contains several per-tuner initialization "magic" | |
272 | */ | |
f7ce3cc6 | 273 | static void set_type(struct i2c_client *c, unsigned int type, |
de956c1e | 274 | unsigned int new_mode_mask, unsigned int new_config, |
d7cba043 | 275 | int (*tuner_callback) (void *dev, int component, int cmd, int arg)) |
1da177e4 | 276 | { |
e8a4a9e7 | 277 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e18f9444 | 278 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; |
bc3e5c7f | 279 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
586b0cab | 280 | unsigned char buffer[4]; |
d6eef494 | 281 | int tune_now = 1; |
1da177e4 | 282 | |
f7ce3cc6 | 283 | if (type == UNSET || type == TUNER_ABSENT) { |
7d275bf8 | 284 | tuner_dbg("tuner 0x%02x: Tuner type absent\n", c->addr); |
1da177e4 | 285 | return; |
f7ce3cc6 MCC |
286 | } |
287 | ||
80f90fba | 288 | t->type = type; |
e7ddcd98 | 289 | /* prevent invalid config values */ |
f14a2972 | 290 | t->config = new_config < 256 ? new_config : 0; |
80f90fba HH |
291 | if (tuner_callback != NULL) { |
292 | tuner_dbg("defining GPIO callback\n"); | |
d7cba043 | 293 | t->fe.callback = tuner_callback; |
80f90fba HH |
294 | } |
295 | ||
b2083199 | 296 | /* discard private data, in case set_type() was previously called */ |
a07c8779 MK |
297 | tuner_detach(&t->fe); |
298 | t->fe.analog_demod_priv = NULL; | |
be2b85a1 | 299 | |
1da177e4 LT |
300 | switch (t->type) { |
301 | case TUNER_MT2032: | |
09fee5f8 MCC |
302 | if (!dvb_attach(microtune_attach, |
303 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
304 | goto attach_failed; | |
1da177e4 LT |
305 | break; |
306 | case TUNER_PHILIPS_TDA8290: | |
5bea1cd3 | 307 | { |
09fee5f8 MCC |
308 | struct tda829x_config cfg = { |
309 | .lna_cfg = t->config, | |
09fee5f8 MCC |
310 | }; |
311 | if (!dvb_attach(tda829x_attach, &t->fe, t->i2c->adapter, | |
312 | t->i2c->addr, &cfg)) | |
313 | goto attach_failed; | |
5bea1cd3 MK |
314 | break; |
315 | } | |
586b0cab | 316 | case TUNER_TEA5767: |
a07c8779 MK |
317 | if (!dvb_attach(tea5767_attach, &t->fe, |
318 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 319 | goto attach_failed; |
f7ce3cc6 | 320 | t->mode_mask = T_RADIO; |
586b0cab | 321 | break; |
8573a9e6 | 322 | case TUNER_TEA5761: |
a07c8779 MK |
323 | if (!dvb_attach(tea5761_attach, &t->fe, |
324 | t->i2c->adapter, t->i2c->addr)) | |
b9ef6bbb | 325 | goto attach_failed; |
8573a9e6 MCC |
326 | t->mode_mask = T_RADIO; |
327 | break; | |
586b0cab | 328 | case TUNER_PHILIPS_FMD1216ME_MK3: |
27b93d8a | 329 | case TUNER_PHILIPS_FMD1216MEX_MK3: |
586b0cab MCC |
330 | buffer[0] = 0x0b; |
331 | buffer[1] = 0xdc; | |
332 | buffer[2] = 0x9c; | |
333 | buffer[3] = 0x60; | |
f7ce3cc6 | 334 | i2c_master_send(c, buffer, 4); |
586b0cab MCC |
335 | mdelay(1); |
336 | buffer[2] = 0x86; | |
337 | buffer[3] = 0x54; | |
f7ce3cc6 | 338 | i2c_master_send(c, buffer, 4); |
a07c8779 MK |
339 | if (!dvb_attach(simple_tuner_attach, &t->fe, |
340 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 341 | goto attach_failed; |
586b0cab | 342 | break; |
93df3413 HH |
343 | case TUNER_PHILIPS_TD1316: |
344 | buffer[0] = 0x0b; | |
345 | buffer[1] = 0xdc; | |
346 | buffer[2] = 0x86; | |
347 | buffer[3] = 0xa4; | |
a07c8779 MK |
348 | i2c_master_send(c, buffer, 4); |
349 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
350 | t->i2c->adapter, t->i2c->addr, t->type)) | |
b9ef6bbb | 351 | goto attach_failed; |
ac272ed7 | 352 | break; |
690c544c MCC |
353 | case TUNER_XC2028: |
354 | { | |
a37b4c9b ML |
355 | struct xc2028_config cfg = { |
356 | .i2c_adap = t->i2c->adapter, | |
357 | .i2c_addr = t->i2c->addr, | |
a37b4c9b | 358 | }; |
a07c8779 | 359 | if (!dvb_attach(xc2028_attach, &t->fe, &cfg)) |
b9ef6bbb | 360 | goto attach_failed; |
d6eef494 | 361 | tune_now = 0; |
690c544c MCC |
362 | break; |
363 | } | |
15396236 | 364 | case TUNER_TDA9887: |
09fee5f8 MCC |
365 | if (!dvb_attach(tda9887_attach, |
366 | &t->fe, t->i2c->adapter, t->i2c->addr)) | |
367 | goto attach_failed; | |
15396236 | 368 | break; |
27c685a4 | 369 | case TUNER_XC5000: |
b9ef6bbb | 370 | { |
900f734b MCC |
371 | struct xc5000_config xc5000_cfg = { |
372 | .i2c_address = t->i2c->addr, | |
373 | /* if_khz will be set at dvb_attach() */ | |
374 | .if_khz = 0, | |
375 | }; | |
376 | ||
a07c8779 | 377 | if (!dvb_attach(xc5000_attach, |
30650961 | 378 | &t->fe, t->i2c->adapter, &xc5000_cfg)) |
b9ef6bbb | 379 | goto attach_failed; |
d6eef494 | 380 | tune_now = 0; |
27c685a4 | 381 | break; |
b9ef6bbb | 382 | } |
f21cfaf6 MK |
383 | case TUNER_XC5000C: |
384 | { | |
385 | struct xc5000_config xc5000c_cfg = { | |
386 | .i2c_address = t->i2c->addr, | |
387 | /* if_khz will be set at dvb_attach() */ | |
388 | .if_khz = 0, | |
6fab81df | 389 | .chip_id = XC5000C, |
f21cfaf6 MK |
390 | }; |
391 | ||
392 | if (!dvb_attach(xc5000_attach, | |
393 | &t->fe, t->i2c->adapter, &xc5000c_cfg)) | |
394 | goto attach_failed; | |
395 | tune_now = 0; | |
396 | break; | |
397 | } | |
93463895 MK |
398 | case TUNER_NXP_TDA18271: |
399 | { | |
400 | struct tda18271_config cfg = { | |
401 | .config = t->config, | |
e350d44f | 402 | .small_i2c = TDA18271_03_BYTE_CHUNK_INIT, |
93463895 MK |
403 | }; |
404 | ||
9f3f71ef MCC |
405 | if (!dvb_attach(tda18271_attach, &t->fe, t->i2c->addr, |
406 | t->i2c->adapter, &cfg)) | |
407 | goto attach_failed; | |
408 | tune_now = 0; | |
409 | break; | |
410 | } | |
8d009a0c DF |
411 | case TUNER_XC4000: |
412 | { | |
413 | struct xc4000_config xc4000_cfg = { | |
414 | .i2c_address = t->i2c->addr, | |
8edeb6eb | 415 | /* FIXME: the correct parameters will be set */ |
416 | /* only when the digital dvb_attach() occurs */ | |
417 | .default_pm = 0, | |
418 | .dvb_amplitude = 0, | |
419 | .set_smoothedcvbs = 0, | |
420 | .if_khz = 0 | |
8d009a0c DF |
421 | }; |
422 | if (!dvb_attach(xc4000_attach, | |
423 | &t->fe, t->i2c->adapter, &xc4000_cfg)) | |
424 | goto attach_failed; | |
425 | tune_now = 0; | |
426 | break; | |
427 | } | |
9f3f71ef MCC |
428 | default: |
429 | if (!dvb_attach(simple_tuner_attach, &t->fe, | |
430 | t->i2c->adapter, t->i2c->addr, t->type)) | |
431 | goto attach_failed; | |
432 | ||
433 | break; | |
434 | } | |
435 | ||
436 | if ((NULL == analog_ops->set_params) && | |
437 | (fe_tuner_ops->set_analog_params)) { | |
438 | ||
439 | t->name = fe_tuner_ops->info.name; | |
440 | ||
441 | t->fe.analog_demod_priv = t; | |
442 | memcpy(analog_ops, &tuner_analog_ops, | |
443 | sizeof(struct analog_demod_ops)); | |
444 | ||
445 | } else { | |
446 | t->name = analog_ops->info.name; | |
447 | } | |
448 | ||
449 | tuner_dbg("type set to %s\n", t->name); | |
450 | ||
cbde6898 | 451 | t->mode_mask = new_mode_mask; |
9f3f71ef MCC |
452 | |
453 | /* Some tuners require more initialization setup before use, | |
454 | such as firmware download or device calibration. | |
455 | trying to set a frequency here will just fail | |
456 | FIXME: better to move set_freq to the tuner code. This is needed | |
457 | on analog tuners for PLL to properly work | |
458 | */ | |
459 | if (tune_now) { | |
460 | if (V4L2_TUNER_RADIO == t->mode) | |
461 | set_radio_freq(c, t->radio_freq); | |
462 | else | |
463 | set_tv_freq(c, t->tv_freq); | |
464 | } | |
465 | ||
466 | tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n", | |
467 | c->adapter->name, c->driver->driver.name, c->addr << 1, type, | |
468 | t->mode_mask); | |
469 | return; | |
470 | ||
471 | attach_failed: | |
472 | tuner_dbg("Tuner attach for type = %d failed.\n", t->type); | |
473 | t->type = TUNER_ABSENT; | |
9f3f71ef MCC |
474 | |
475 | return; | |
476 | } | |
477 | ||
0ae79d99 MCC |
478 | /** |
479 | * tuner_s_type_addr - Sets the tuner type for a device | |
480 | * | |
481 | * @sd: subdev descriptor | |
482 | * @tun_setup: type to be associated to a given tuner i2c address | |
483 | * | |
484 | * This function applys the tuner config to tuner specified | |
485 | * by tun_setup structure. | |
486 | * If tuner I2C address is UNSET, then it will only set the device | |
487 | * if the tuner supports the mode specified in the call. | |
488 | * If the address is specified, the change will be applied only if | |
489 | * tuner I2C address matches. | |
490 | * The call can change the tuner number and the tuner mode. | |
491 | */ | |
a34ec5f3 MCC |
492 | static int tuner_s_type_addr(struct v4l2_subdev *sd, |
493 | struct tuner_setup *tun_setup) | |
9f3f71ef | 494 | { |
a34ec5f3 MCC |
495 | struct tuner *t = to_tuner(sd); |
496 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
497 | ||
498 | tuner_dbg("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n", | |
499 | tun_setup->type, | |
500 | tun_setup->addr, | |
501 | tun_setup->mode_mask, | |
502 | tun_setup->config); | |
9f3f71ef | 503 | |
7d275bf8 MCC |
504 | if ((t->type == UNSET && ((tun_setup->addr == ADDR_UNSET) && |
505 | (t->mode_mask & tun_setup->mode_mask))) || | |
506 | (tun_setup->addr == c->addr)) { | |
cbde6898 MCC |
507 | set_type(c, tun_setup->type, tun_setup->mode_mask, |
508 | tun_setup->config, tun_setup->tuner_callback); | |
9f3f71ef MCC |
509 | } else |
510 | tuner_dbg("set addr discarded for type %i, mask %x. " | |
511 | "Asked to change tuner at addr 0x%02x, with mask %x\n", | |
512 | t->type, t->mode_mask, | |
513 | tun_setup->addr, tun_setup->mode_mask); | |
9f3f71ef | 514 | |
9f3f71ef MCC |
515 | return 0; |
516 | } | |
517 | ||
a2894e3f MCC |
518 | /** |
519 | * tuner_s_config - Sets tuner configuration | |
520 | * | |
521 | * @sd: subdev descriptor | |
522 | * @cfg: tuner configuration | |
523 | * | |
524 | * Calls tuner set_config() private function to set some tuner-internal | |
525 | * parameters | |
526 | */ | |
7d275bf8 MCC |
527 | static int tuner_s_config(struct v4l2_subdev *sd, |
528 | const struct v4l2_priv_tun_config *cfg) | |
9f3f71ef MCC |
529 | { |
530 | struct tuner *t = to_tuner(sd); | |
531 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
532 | ||
533 | if (t->type != cfg->tuner) | |
534 | return 0; | |
535 | ||
536 | if (analog_ops->set_config) { | |
537 | analog_ops->set_config(&t->fe, cfg->priv); | |
538 | return 0; | |
539 | } | |
540 | ||
541 | tuner_dbg("Tuner frontend module has no way to set config\n"); | |
542 | return 0; | |
543 | } | |
544 | ||
a2894e3f MCC |
545 | /** |
546 | * tuner_lookup - Seek for tuner adapters | |
547 | * | |
548 | * @adap: i2c_adapter struct | |
549 | * @radio: pointer to be filled if the adapter is radio | |
550 | * @tv: pointer to be filled if the adapter is TV | |
551 | * | |
552 | * Search for existing radio and/or TV tuners on the given I2C adapter, | |
553 | * discarding demod-only adapters (tda9887). | |
554 | * | |
555 | * Note that when this function is called from tuner_probe you can be | |
556 | * certain no other devices will be added/deleted at the same time, I2C | |
557 | * core protects against that. | |
558 | */ | |
9f3f71ef MCC |
559 | static void tuner_lookup(struct i2c_adapter *adap, |
560 | struct tuner **radio, struct tuner **tv) | |
561 | { | |
562 | struct tuner *pos; | |
563 | ||
564 | *radio = NULL; | |
565 | *tv = NULL; | |
566 | ||
567 | list_for_each_entry(pos, &tuner_list, list) { | |
568 | int mode_mask; | |
569 | ||
570 | if (pos->i2c->adapter != adap || | |
571 | strcmp(pos->i2c->driver->driver.name, "tuner")) | |
572 | continue; | |
573 | ||
cbde6898 | 574 | mode_mask = pos->mode_mask; |
9f3f71ef MCC |
575 | if (*radio == NULL && mode_mask == T_RADIO) |
576 | *radio = pos; | |
577 | /* Note: currently TDA9887 is the only demod-only | |
578 | device. If other devices appear then we need to | |
579 | make this test more general. */ | |
580 | else if (*tv == NULL && pos->type != TUNER_TDA9887 && | |
ad020dc2 | 581 | (pos->mode_mask & T_ANALOG_TV)) |
9f3f71ef MCC |
582 | *tv = pos; |
583 | } | |
584 | } | |
585 | ||
a2894e3f MCC |
586 | /** |
587 | *tuner_probe - Probes the existing tuners on an I2C bus | |
588 | * | |
589 | * @client: i2c_client descriptor | |
590 | * @id: not used | |
591 | * | |
592 | * This routine probes for tuners at the expected I2C addresses. On most | |
593 | * cases, if a device answers to a given I2C address, it assumes that the | |
594 | * device is a tuner. On a few cases, however, an additional logic is needed | |
595 | * to double check if the device is really a tuner, or to identify the tuner | |
596 | * type, like on tea5767/5761 devices. | |
597 | * | |
598 | * During client attach, set_type is called by adapter's attach_inform callback. | |
599 | * set_type must then be completed by tuner_probe. | |
9f3f71ef MCC |
600 | */ |
601 | static int tuner_probe(struct i2c_client *client, | |
602 | const struct i2c_device_id *id) | |
603 | { | |
604 | struct tuner *t; | |
605 | struct tuner *radio; | |
606 | struct tuner *tv; | |
607 | ||
608 | t = kzalloc(sizeof(struct tuner), GFP_KERNEL); | |
609 | if (NULL == t) | |
610 | return -ENOMEM; | |
611 | v4l2_i2c_subdev_init(&t->sd, client, &tuner_ops); | |
612 | t->i2c = client; | |
613 | t->name = "(tuner unset)"; | |
614 | t->type = UNSET; | |
615 | t->audmode = V4L2_TUNER_MODE_STEREO; | |
cbde6898 MCC |
616 | t->standby = 1; |
617 | t->radio_freq = 87.5 * 16000; /* Initial freq range */ | |
618 | t->tv_freq = 400 * 16; /* Sets freq to VHF High - needed for some PLL's to properly start */ | |
9f3f71ef MCC |
619 | |
620 | if (show_i2c) { | |
621 | unsigned char buffer[16]; | |
622 | int i, rc; | |
623 | ||
624 | memset(buffer, 0, sizeof(buffer)); | |
625 | rc = i2c_master_recv(client, buffer, sizeof(buffer)); | |
626 | tuner_info("I2C RECV = "); | |
627 | for (i = 0; i < rc; i++) | |
628 | printk(KERN_CONT "%02x ", buffer[i]); | |
629 | printk("\n"); | |
630 | } | |
631 | ||
632 | /* autodetection code based on the i2c addr */ | |
633 | if (!no_autodetect) { | |
634 | switch (client->addr) { | |
635 | case 0x10: | |
636 | if (tuner_symbol_probe(tea5761_autodetection, | |
637 | t->i2c->adapter, | |
638 | t->i2c->addr) >= 0) { | |
639 | t->type = TUNER_TEA5761; | |
640 | t->mode_mask = T_RADIO; | |
9f3f71ef MCC |
641 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
642 | if (tv) | |
643 | tv->mode_mask &= ~T_RADIO; | |
644 | ||
645 | goto register_client; | |
646 | } | |
647 | kfree(t); | |
648 | return -ENODEV; | |
649 | case 0x42: | |
650 | case 0x43: | |
651 | case 0x4a: | |
652 | case 0x4b: | |
653 | /* If chip is not tda8290, don't register. | |
654 | since it can be tda9887*/ | |
655 | if (tuner_symbol_probe(tda829x_probe, t->i2c->adapter, | |
656 | t->i2c->addr) >= 0) { | |
657 | tuner_dbg("tda829x detected\n"); | |
658 | } else { | |
659 | /* Default is being tda9887 */ | |
660 | t->type = TUNER_TDA9887; | |
ad020dc2 | 661 | t->mode_mask = T_RADIO | T_ANALOG_TV; |
9f3f71ef MCC |
662 | goto register_client; |
663 | } | |
664 | break; | |
665 | case 0x60: | |
666 | if (tuner_symbol_probe(tea5767_autodetection, | |
667 | t->i2c->adapter, t->i2c->addr) | |
668 | >= 0) { | |
669 | t->type = TUNER_TEA5767; | |
670 | t->mode_mask = T_RADIO; | |
9f3f71ef | 671 | /* Sets freq to FM range */ |
9f3f71ef MCC |
672 | tuner_lookup(t->i2c->adapter, &radio, &tv); |
673 | if (tv) | |
674 | tv->mode_mask &= ~T_RADIO; | |
675 | ||
676 | goto register_client; | |
677 | } | |
678 | break; | |
679 | } | |
93463895 | 680 | } |
b9ef6bbb | 681 | |
9f3f71ef MCC |
682 | /* Initializes only the first TV tuner on this adapter. Why only the |
683 | first? Because there are some devices (notably the ones with TI | |
684 | tuners) that have more than one i2c address for the *same* device. | |
685 | Experience shows that, except for just one case, the first | |
686 | address is the right one. The exception is a Russian tuner | |
687 | (ACORP_Y878F). So, the desired behavior is just to enable the | |
688 | first found TV tuner. */ | |
689 | tuner_lookup(t->i2c->adapter, &radio, &tv); | |
690 | if (tv == NULL) { | |
ad020dc2 | 691 | t->mode_mask = T_ANALOG_TV; |
9f3f71ef MCC |
692 | if (radio == NULL) |
693 | t->mode_mask |= T_RADIO; | |
694 | tuner_dbg("Setting mode_mask to 0x%02x\n", t->mode_mask); | |
1da177e4 | 695 | } |
f7ce3cc6 | 696 | |
9f3f71ef MCC |
697 | /* Should be just before return */ |
698 | register_client: | |
9f3f71ef | 699 | /* Sets a default mode */ |
7d275bf8 | 700 | if (t->mode_mask & T_ANALOG_TV) |
9f3f71ef | 701 | t->mode = V4L2_TUNER_ANALOG_TV; |
7d275bf8 | 702 | else |
ad020dc2 | 703 | t->mode = V4L2_TUNER_RADIO; |
9f3f71ef MCC |
704 | set_type(client, t->type, t->mode_mask, t->config, t->fe.callback); |
705 | list_add_tail(&t->list, &tuner_list); | |
cbde6898 | 706 | |
ad020dc2 | 707 | tuner_info("Tuner %d found with type(s)%s%s.\n", |
cbde6898 | 708 | t->type, |
ad020dc2 MCC |
709 | t->mode_mask & T_RADIO ? " Radio" : "", |
710 | t->mode_mask & T_ANALOG_TV ? " TV" : ""); | |
9f3f71ef MCC |
711 | return 0; |
712 | } | |
e18f9444 | 713 | |
a2894e3f MCC |
714 | /** |
715 | * tuner_remove - detaches a tuner | |
716 | * | |
717 | * @client: i2c_client descriptor | |
718 | */ | |
719 | ||
9f3f71ef MCC |
720 | static int tuner_remove(struct i2c_client *client) |
721 | { | |
722 | struct tuner *t = to_tuner(i2c_get_clientdata(client)); | |
b9ef6bbb | 723 | |
9f3f71ef MCC |
724 | v4l2_device_unregister_subdev(&t->sd); |
725 | tuner_detach(&t->fe); | |
726 | t->fe.analog_demod_priv = NULL; | |
b9ef6bbb | 727 | |
9f3f71ef MCC |
728 | list_del(&t->list); |
729 | kfree(t); | |
730 | return 0; | |
1da177e4 LT |
731 | } |
732 | ||
0eec66c0 MCC |
733 | /* |
734 | * Functions to switch between Radio and TV | |
735 | * | |
736 | * A few cards have a separate I2C tuner for radio. Those routines | |
737 | * take care of switching between TV/Radio mode, filtering only the | |
738 | * commands that apply to the Radio or TV tuner. | |
739 | */ | |
740 | ||
741 | /** | |
742 | * check_mode - Verify if tuner supports the requested mode | |
743 | * @t: a pointer to the module's internal struct_tuner | |
744 | * | |
745 | * This function checks if the tuner is capable of tuning analog TV, | |
746 | * digital TV or radio, depending on what the caller wants. If the | |
747 | * tuner can't support that mode, it returns -EINVAL. Otherwise, it | |
748 | * returns 0. | |
749 | * This function is needed for boards that have a separate tuner for | |
750 | * radio (like devices with tea5767). | |
a1ad5ec7 MCC |
751 | * NOTE: mt20xx uses V4L2_TUNER_DIGITAL_TV and calls set_tv_freq to |
752 | * select a TV frequency. So, t_mode = T_ANALOG_TV could actually | |
753 | * be used to represent a Digital TV too. | |
0eec66c0 MCC |
754 | */ |
755 | static inline int check_mode(struct tuner *t, enum v4l2_tuner_type mode) | |
756 | { | |
a1ad5ec7 MCC |
757 | int t_mode; |
758 | if (mode == V4L2_TUNER_RADIO) | |
759 | t_mode = T_RADIO; | |
760 | else | |
761 | t_mode = T_ANALOG_TV; | |
762 | ||
763 | if ((t_mode & t->mode_mask) == 0) | |
0eec66c0 MCC |
764 | return -EINVAL; |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
769 | /** | |
4e4a31fb | 770 | * set_mode - Switch tuner to other mode. |
0eec66c0 MCC |
771 | * @t: a pointer to the module's internal struct_tuner |
772 | * @mode: enum v4l2_type (radio or TV) | |
0eec66c0 MCC |
773 | * |
774 | * If tuner doesn't support the needed mode (radio or TV), prints a | |
775 | * debug message and returns -EINVAL, changing its state to standby. | |
4e4a31fb | 776 | * Otherwise, changes the mode and returns 0. |
0eec66c0 | 777 | */ |
4e4a31fb | 778 | static int set_mode(struct tuner *t, enum v4l2_tuner_type mode) |
0eec66c0 MCC |
779 | { |
780 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
781 | ||
782 | if (mode != t->mode) { | |
783 | if (check_mode(t, mode) == -EINVAL) { | |
784 | tuner_dbg("Tuner doesn't support mode %d. " | |
785 | "Putting tuner to sleep\n", mode); | |
786 | t->standby = true; | |
787 | if (analog_ops->standby) | |
788 | analog_ops->standby(&t->fe); | |
789 | return -EINVAL; | |
790 | } | |
791 | t->mode = mode; | |
792 | tuner_dbg("Changing to mode %d\n", mode); | |
793 | } | |
4e4a31fb HV |
794 | return 0; |
795 | } | |
796 | ||
797 | /** | |
798 | * set_freq - Set the tuner to the desired frequency. | |
799 | * @t: a pointer to the module's internal struct_tuner | |
800 | * @freq: frequency to set (0 means to use the current frequency) | |
801 | */ | |
802 | static void set_freq(struct tuner *t, unsigned int freq) | |
803 | { | |
804 | struct i2c_client *client = v4l2_get_subdevdata(&t->sd); | |
805 | ||
0eec66c0 | 806 | if (t->mode == V4L2_TUNER_RADIO) { |
4e4a31fb HV |
807 | if (!freq) |
808 | freq = t->radio_freq; | |
809 | set_radio_freq(client, freq); | |
0eec66c0 | 810 | } else { |
4e4a31fb HV |
811 | if (!freq) |
812 | freq = t->tv_freq; | |
813 | set_tv_freq(client, freq); | |
0eec66c0 | 814 | } |
0eec66c0 MCC |
815 | } |
816 | ||
f7ce3cc6 | 817 | /* |
9f3f71ef MCC |
818 | * Functions that are specific for TV mode |
819 | */ | |
f7ce3cc6 | 820 | |
a2894e3f MCC |
821 | /** |
822 | * set_tv_freq - Set tuner frequency, freq in Units of 62.5 kHz = 1/16MHz | |
823 | * | |
824 | * @c: i2c_client descriptor | |
825 | * @freq: frequency | |
826 | */ | |
9f3f71ef | 827 | static void set_tv_freq(struct i2c_client *c, unsigned int freq) |
f7ce3cc6 | 828 | { |
e8a4a9e7 | 829 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
9f3f71ef | 830 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
f7ce3cc6 | 831 | |
9f3f71ef MCC |
832 | struct analog_parameters params = { |
833 | .mode = t->mode, | |
834 | .audmode = t->audmode, | |
835 | .std = t->std | |
836 | }; | |
56fc08ca | 837 | |
9f3f71ef | 838 | if (t->type == UNSET) { |
7d275bf8 | 839 | tuner_warn("tuner type not set\n"); |
9f3f71ef | 840 | return; |
793cf9e6 | 841 | } |
9f3f71ef | 842 | if (NULL == analog_ops->set_params) { |
7d275bf8 | 843 | tuner_warn("Tuner has no way to set tv freq\n"); |
9f3f71ef | 844 | return; |
56fc08ca | 845 | } |
9f3f71ef | 846 | if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) { |
7d275bf8 | 847 | tuner_dbg("TV freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
848 | freq / 16, freq % 16 * 100 / 16, tv_range[0], |
849 | tv_range[1]); | |
850 | /* V4L2 spec: if the freq is not possible then the closest | |
851 | possible value should be selected */ | |
852 | if (freq < tv_range[0] * 16) | |
853 | freq = tv_range[0] * 16; | |
854 | else | |
855 | freq = tv_range[1] * 16; | |
856 | } | |
857 | params.frequency = freq; | |
858 | tuner_dbg("tv freq set to %d.%02d\n", | |
859 | freq / 16, freq % 16 * 100 / 16); | |
860 | t->tv_freq = freq; | |
cbde6898 | 861 | t->standby = false; |
9f3f71ef MCC |
862 | |
863 | analog_ops->set_params(&t->fe, ¶ms); | |
56fc08ca | 864 | } |
56fc08ca | 865 | |
a2894e3f MCC |
866 | /** |
867 | * tuner_fixup_std - force a given video standard variant | |
868 | * | |
48783301 HV |
869 | * @t: tuner internal struct |
870 | * @std: TV standard | |
a2894e3f MCC |
871 | * |
872 | * A few devices or drivers have problem to detect some standard variations. | |
873 | * On other operational systems, the drivers generally have a per-country | |
874 | * code, and some logic to apply per-country hacks. V4L2 API doesn't provide | |
875 | * such hacks. Instead, it relies on a proper video standard selection from | |
876 | * the userspace application. However, as some apps are buggy, not allowing | |
877 | * to distinguish all video standard variations, a modprobe parameter can | |
878 | * be used to force a video standard match. | |
879 | */ | |
48783301 | 880 | static v4l2_std_id tuner_fixup_std(struct tuner *t, v4l2_std_id std) |
1da177e4 | 881 | { |
48783301 | 882 | if (pal[0] != '-' && (std & V4L2_STD_PAL) == V4L2_STD_PAL) { |
1da177e4 | 883 | switch (pal[0]) { |
e71ced1a | 884 | case '6': |
48783301 | 885 | return V4L2_STD_PAL_60; |
1da177e4 LT |
886 | case 'b': |
887 | case 'B': | |
888 | case 'g': | |
889 | case 'G': | |
48783301 | 890 | return V4L2_STD_PAL_BG; |
1da177e4 LT |
891 | case 'i': |
892 | case 'I': | |
48783301 | 893 | return V4L2_STD_PAL_I; |
1da177e4 LT |
894 | case 'd': |
895 | case 'D': | |
896 | case 'k': | |
897 | case 'K': | |
48783301 | 898 | return V4L2_STD_PAL_DK; |
f7ce3cc6 MCC |
899 | case 'M': |
900 | case 'm': | |
48783301 | 901 | return V4L2_STD_PAL_M; |
f7ce3cc6 MCC |
902 | case 'N': |
903 | case 'n': | |
48783301 HV |
904 | if (pal[1] == 'c' || pal[1] == 'C') |
905 | return V4L2_STD_PAL_Nc; | |
906 | return V4L2_STD_PAL_N; | |
21d4df37 | 907 | default: |
7d275bf8 | 908 | tuner_warn("pal= argument not recognised\n"); |
21d4df37 | 909 | break; |
1da177e4 LT |
910 | } |
911 | } | |
48783301 | 912 | if (secam[0] != '-' && (std & V4L2_STD_SECAM) == V4L2_STD_SECAM) { |
f7ce3cc6 | 913 | switch (secam[0]) { |
7e578191 MCC |
914 | case 'b': |
915 | case 'B': | |
916 | case 'g': | |
917 | case 'G': | |
918 | case 'h': | |
919 | case 'H': | |
48783301 HV |
920 | return V4L2_STD_SECAM_B | |
921 | V4L2_STD_SECAM_G | | |
922 | V4L2_STD_SECAM_H; | |
f7ce3cc6 MCC |
923 | case 'd': |
924 | case 'D': | |
925 | case 'k': | |
926 | case 'K': | |
48783301 | 927 | return V4L2_STD_SECAM_DK; |
f7ce3cc6 MCC |
928 | case 'l': |
929 | case 'L': | |
48783301 HV |
930 | if ((secam[1] == 'C') || (secam[1] == 'c')) |
931 | return V4L2_STD_SECAM_LC; | |
932 | return V4L2_STD_SECAM_L; | |
21d4df37 | 933 | default: |
7d275bf8 | 934 | tuner_warn("secam= argument not recognised\n"); |
21d4df37 | 935 | break; |
f7ce3cc6 MCC |
936 | } |
937 | } | |
938 | ||
48783301 | 939 | if (ntsc[0] != '-' && (std & V4L2_STD_NTSC) == V4L2_STD_NTSC) { |
7e578191 MCC |
940 | switch (ntsc[0]) { |
941 | case 'm': | |
942 | case 'M': | |
48783301 | 943 | return V4L2_STD_NTSC_M; |
7e578191 MCC |
944 | case 'j': |
945 | case 'J': | |
48783301 | 946 | return V4L2_STD_NTSC_M_JP; |
d97a11e0 HV |
947 | case 'k': |
948 | case 'K': | |
48783301 | 949 | return V4L2_STD_NTSC_M_KR; |
7e578191 MCC |
950 | default: |
951 | tuner_info("ntsc= argument not recognised\n"); | |
952 | break; | |
953 | } | |
954 | } | |
48783301 | 955 | return std; |
9f3f71ef MCC |
956 | } |
957 | ||
958 | /* | |
959 | * Functions that are specific for Radio mode | |
960 | */ | |
961 | ||
a2894e3f MCC |
962 | /** |
963 | * set_radio_freq - Set tuner frequency, freq in Units of 62.5 Hz = 1/16kHz | |
964 | * | |
965 | * @c: i2c_client descriptor | |
966 | * @freq: frequency | |
967 | */ | |
9f3f71ef MCC |
968 | static void set_radio_freq(struct i2c_client *c, unsigned int freq) |
969 | { | |
970 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); | |
971 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
972 | ||
973 | struct analog_parameters params = { | |
974 | .mode = t->mode, | |
975 | .audmode = t->audmode, | |
976 | .std = t->std | |
977 | }; | |
978 | ||
979 | if (t->type == UNSET) { | |
7d275bf8 | 980 | tuner_warn("tuner type not set\n"); |
9f3f71ef MCC |
981 | return; |
982 | } | |
983 | if (NULL == analog_ops->set_params) { | |
7d275bf8 | 984 | tuner_warn("tuner has no way to set radio frequency\n"); |
9f3f71ef MCC |
985 | return; |
986 | } | |
987 | if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) { | |
7d275bf8 | 988 | tuner_dbg("radio freq (%d.%02d) out of range (%d-%d)\n", |
9f3f71ef MCC |
989 | freq / 16000, freq % 16000 * 100 / 16000, |
990 | radio_range[0], radio_range[1]); | |
991 | /* V4L2 spec: if the freq is not possible then the closest | |
992 | possible value should be selected */ | |
993 | if (freq < radio_range[0] * 16000) | |
994 | freq = radio_range[0] * 16000; | |
995 | else | |
996 | freq = radio_range[1] * 16000; | |
997 | } | |
998 | params.frequency = freq; | |
999 | tuner_dbg("radio freq set to %d.%02d\n", | |
1000 | freq / 16000, freq % 16000 * 100 / 16000); | |
1001 | t->radio_freq = freq; | |
cbde6898 | 1002 | t->standby = false; |
9f3f71ef MCC |
1003 | |
1004 | analog_ops->set_params(&t->fe, ¶ms); | |
1005 | } | |
1006 | ||
0eec66c0 MCC |
1007 | /* |
1008 | * Debug function for reporting tuner status to userspace | |
9f3f71ef | 1009 | */ |
9f3f71ef | 1010 | |
cbde6898 MCC |
1011 | /** |
1012 | * tuner_status - Dumps the current tuner status at dmesg | |
1013 | * @fe: pointer to struct dvb_frontend | |
1014 | * | |
1015 | * This callback is used only for driver debug purposes, answering to | |
1016 | * VIDIOC_LOG_STATUS. No changes should happen on this call. | |
1017 | */ | |
4e9154b8 | 1018 | static void tuner_status(struct dvb_frontend *fe) |
7e578191 | 1019 | { |
4e9154b8 | 1020 | struct tuner *t = fe->analog_demod_priv; |
7e578191 | 1021 | unsigned long freq, freq_fraction; |
a07c8779 MK |
1022 | struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; |
1023 | struct analog_demod_ops *analog_ops = &fe->ops.analog_ops; | |
7e578191 MCC |
1024 | const char *p; |
1025 | ||
1026 | switch (t->mode) { | |
7d275bf8 MCC |
1027 | case V4L2_TUNER_RADIO: |
1028 | p = "radio"; | |
1029 | break; | |
a1ad5ec7 | 1030 | case V4L2_TUNER_DIGITAL_TV: /* Used by mt20xx */ |
7d275bf8 MCC |
1031 | p = "digital TV"; |
1032 | break; | |
1033 | case V4L2_TUNER_ANALOG_TV: | |
1034 | default: | |
1035 | p = "analog TV"; | |
1036 | break; | |
7e578191 MCC |
1037 | } |
1038 | if (t->mode == V4L2_TUNER_RADIO) { | |
27487d44 HV |
1039 | freq = t->radio_freq / 16000; |
1040 | freq_fraction = (t->radio_freq % 16000) * 100 / 16000; | |
7e578191 | 1041 | } else { |
27487d44 HV |
1042 | freq = t->tv_freq / 16; |
1043 | freq_fraction = (t->tv_freq % 16) * 100 / 16; | |
7e578191 | 1044 | } |
cbde6898 MCC |
1045 | tuner_info("Tuner mode: %s%s\n", p, |
1046 | t->standby ? " on standby mode" : ""); | |
7e578191 | 1047 | tuner_info("Frequency: %lu.%02lu MHz\n", freq, freq_fraction); |
4ae5c2e5 | 1048 | tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std); |
8a4b275f | 1049 | if (t->mode != V4L2_TUNER_RADIO) |
7d275bf8 | 1050 | return; |
e18f9444 MK |
1051 | if (fe_tuner_ops->get_status) { |
1052 | u32 tuner_status; | |
1053 | ||
1054 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1055 | if (tuner_status & TUNER_STATUS_LOCKED) | |
1056 | tuner_info("Tuner is locked.\n"); | |
1057 | if (tuner_status & TUNER_STATUS_STEREO) | |
1058 | tuner_info("Stereo: yes\n"); | |
1059 | } | |
bc3e5c7f MK |
1060 | if (analog_ops->has_signal) |
1061 | tuner_info("Signal strength: %d\n", | |
1062 | analog_ops->has_signal(fe)); | |
7e578191 | 1063 | } |
8a4b275f | 1064 | |
0eec66c0 MCC |
1065 | /* |
1066 | * Function to splicitly change mode to radio. Probably not needed anymore | |
1067 | */ | |
1068 | ||
1069 | static int tuner_s_radio(struct v4l2_subdev *sd) | |
1070 | { | |
1071 | struct tuner *t = to_tuner(sd); | |
0eec66c0 | 1072 | |
4e4a31fb HV |
1073 | if (set_mode(t, V4L2_TUNER_RADIO) == 0) |
1074 | set_freq(t, 0); | |
0eec66c0 MCC |
1075 | return 0; |
1076 | } | |
1077 | ||
1078 | /* | |
1079 | * Tuner callbacks to handle userspace ioctl's | |
1080 | */ | |
1081 | ||
cbde6898 MCC |
1082 | /** |
1083 | * tuner_s_power - controls the power state of the tuner | |
1084 | * @sd: pointer to struct v4l2_subdev | |
d16625e7 | 1085 | * @on: a zero value puts the tuner to sleep, non-zero wakes it up |
cbde6898 | 1086 | */ |
622b828a | 1087 | static int tuner_s_power(struct v4l2_subdev *sd, int on) |
e8a4a9e7 HV |
1088 | { |
1089 | struct tuner *t = to_tuner(sd); | |
bc3e5c7f | 1090 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1091 | |
d16625e7 HV |
1092 | if (on) { |
1093 | if (t->standby && set_mode(t, t->mode) == 0) { | |
1094 | tuner_dbg("Waking up tuner\n"); | |
1095 | set_freq(t, 0); | |
1096 | } | |
622b828a | 1097 | return 0; |
d16625e7 | 1098 | } |
622b828a | 1099 | |
16a5e53d | 1100 | tuner_dbg("Putting tuner to sleep\n"); |
cbde6898 | 1101 | t->standby = true; |
e8a4a9e7 HV |
1102 | if (analog_ops->standby) |
1103 | analog_ops->standby(&t->fe); | |
1104 | return 0; | |
1105 | } | |
5e453dc7 | 1106 | |
e8a4a9e7 HV |
1107 | static int tuner_s_std(struct v4l2_subdev *sd, v4l2_std_id std) |
1108 | { | |
1109 | struct tuner *t = to_tuner(sd); | |
f7ce3cc6 | 1110 | |
4e4a31fb | 1111 | if (set_mode(t, V4L2_TUNER_ANALOG_TV)) |
e8a4a9e7 | 1112 | return 0; |
f7ce3cc6 | 1113 | |
48783301 HV |
1114 | t->std = tuner_fixup_std(t, std); |
1115 | if (t->std != std) | |
1116 | tuner_dbg("Fixup standard %llx to %llx\n", std, t->std); | |
4e4a31fb | 1117 | set_freq(t, 0); |
e8a4a9e7 HV |
1118 | return 0; |
1119 | } | |
f7ce3cc6 | 1120 | |
e8a4a9e7 HV |
1121 | static int tuner_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
1122 | { | |
1123 | struct tuner *t = to_tuner(sd); | |
8a4b275f | 1124 | |
4e4a31fb HV |
1125 | if (set_mode(t, f->type) == 0) |
1126 | set_freq(t, f->frequency); | |
e8a4a9e7 HV |
1127 | return 0; |
1128 | } | |
f7ce3cc6 | 1129 | |
338e9e1a HV |
1130 | /** |
1131 | * tuner_g_frequency - Get the tuned frequency for the tuner | |
1132 | * @sd: pointer to struct v4l2_subdev | |
1133 | * @f: pointer to struct v4l2_frequency | |
1134 | * | |
1135 | * At return, the structure f will be filled with tuner frequency | |
1136 | * if the tuner matches the f->type. | |
1137 | * Note: f->type should be initialized before calling it. | |
1138 | * This is done by either video_ioctl2 or by the bridge driver. | |
1139 | */ | |
e8a4a9e7 HV |
1140 | static int tuner_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
1141 | { | |
1142 | struct tuner *t = to_tuner(sd); | |
1143 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
f7ce3cc6 | 1144 | |
cbde6898 | 1145 | if (check_mode(t, f->type) == -EINVAL) |
e8a4a9e7 | 1146 | return 0; |
5ad339a2 | 1147 | if (f->type == t->mode && fe_tuner_ops->get_frequency && !t->standby) { |
e8a4a9e7 HV |
1148 | u32 abs_freq; |
1149 | ||
1150 | fe_tuner_ops->get_frequency(&t->fe, &abs_freq); | |
1151 | f->frequency = (V4L2_TUNER_RADIO == t->mode) ? | |
75b697f7 JL |
1152 | DIV_ROUND_CLOSEST(abs_freq * 2, 125) : |
1153 | DIV_ROUND_CLOSEST(abs_freq, 62500); | |
cbde6898 | 1154 | } else { |
5ad339a2 | 1155 | f->frequency = (V4L2_TUNER_RADIO == f->type) ? |
cbde6898 | 1156 | t->radio_freq : t->tv_freq; |
e8a4a9e7 | 1157 | } |
e8a4a9e7 HV |
1158 | return 0; |
1159 | } | |
f7ce3cc6 | 1160 | |
338e9e1a HV |
1161 | /** |
1162 | * tuner_g_tuner - Fill in tuner information | |
1163 | * @sd: pointer to struct v4l2_subdev | |
1164 | * @vt: pointer to struct v4l2_tuner | |
1165 | * | |
1166 | * At return, the structure vt will be filled with tuner information | |
1167 | * if the tuner matches vt->type. | |
1168 | * Note: vt->type should be initialized before calling it. | |
1169 | * This is done by either video_ioctl2 or by the bridge driver. | |
1170 | */ | |
e8a4a9e7 HV |
1171 | static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
1172 | { | |
1173 | struct tuner *t = to_tuner(sd); | |
1174 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1175 | struct dvb_tuner_ops *fe_tuner_ops = &t->fe.ops.tuner_ops; | |
1176 | ||
cbde6898 | 1177 | if (check_mode(t, vt->type) == -EINVAL) |
e8a4a9e7 | 1178 | return 0; |
5ad339a2 | 1179 | if (vt->type == t->mode && analog_ops->get_afc) |
e8a4a9e7 | 1180 | vt->afc = analog_ops->get_afc(&t->fe); |
a1ad5ec7 | 1181 | if (t->mode != V4L2_TUNER_RADIO) { |
e8a4a9e7 | 1182 | vt->capability |= V4L2_TUNER_CAP_NORM; |
e8a4a9e7 HV |
1183 | vt->rangelow = tv_range[0] * 16; |
1184 | vt->rangehigh = tv_range[1] * 16; | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | /* radio mode */ | |
5ad339a2 HV |
1189 | if (vt->type == t->mode) { |
1190 | vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; | |
1191 | if (fe_tuner_ops->get_status) { | |
1192 | u32 tuner_status; | |
1193 | ||
1194 | fe_tuner_ops->get_status(&t->fe, &tuner_status); | |
1195 | vt->rxsubchans = | |
1196 | (tuner_status & TUNER_STATUS_STEREO) ? | |
1197 | V4L2_TUNER_SUB_STEREO : | |
1198 | V4L2_TUNER_SUB_MONO; | |
1199 | } | |
1200 | if (analog_ops->has_signal) | |
1201 | vt->signal = analog_ops->has_signal(&t->fe); | |
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 | */ | |
e8a4a9e7 HV |
1220 | static int tuner_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
1221 | { | |
1222 | struct tuner *t = to_tuner(sd); | |
e8a4a9e7 | 1223 | |
4e4a31fb | 1224 | if (set_mode(t, vt->type)) |
e8a4a9e7 HV |
1225 | return 0; |
1226 | ||
cbde6898 MCC |
1227 | if (t->mode == V4L2_TUNER_RADIO) |
1228 | t->audmode = vt->audmode; | |
4e4a31fb | 1229 | set_freq(t, 0); |
cbde6898 | 1230 | |
e8a4a9e7 HV |
1231 | return 0; |
1232 | } | |
1233 | ||
1234 | static int tuner_log_status(struct v4l2_subdev *sd) | |
1235 | { | |
1236 | struct tuner *t = to_tuner(sd); | |
1237 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; | |
1da177e4 | 1238 | |
e8a4a9e7 HV |
1239 | if (analog_ops->tuner_status) |
1240 | analog_ops->tuner_status(&t->fe); | |
1da177e4 LT |
1241 | return 0; |
1242 | } | |
1243 | ||
21b48a70 | 1244 | static int tuner_suspend(struct i2c_client *c, pm_message_t state) |
1da177e4 | 1245 | { |
e8a4a9e7 | 1246 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
e2f63d9b | 1247 | struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops; |
1da177e4 | 1248 | |
9dd659de | 1249 | tuner_dbg("suspend\n"); |
e2f63d9b MCC |
1250 | |
1251 | if (!t->standby && analog_ops->standby) | |
1252 | analog_ops->standby(&t->fe); | |
1253 | ||
1da177e4 LT |
1254 | return 0; |
1255 | } | |
1256 | ||
21b48a70 | 1257 | static int tuner_resume(struct i2c_client *c) |
1da177e4 | 1258 | { |
e8a4a9e7 | 1259 | struct tuner *t = to_tuner(i2c_get_clientdata(c)); |
1da177e4 | 1260 | |
9dd659de | 1261 | tuner_dbg("resume\n"); |
e2f63d9b MCC |
1262 | |
1263 | if (!t->standby) | |
9bf0ef06 | 1264 | if (set_mode(t, t->mode) == 0) |
4e4a31fb | 1265 | set_freq(t, 0); |
e2f63d9b | 1266 | |
1da177e4 LT |
1267 | return 0; |
1268 | } | |
1269 | ||
75b4c260 HV |
1270 | static int tuner_command(struct i2c_client *client, unsigned cmd, void *arg) |
1271 | { | |
1272 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1273 | ||
1274 | /* TUNER_SET_CONFIG is still called by tuner-simple.c, so we have | |
1275 | to handle it here. | |
1276 | There must be a better way of doing this... */ | |
1277 | switch (cmd) { | |
1278 | case TUNER_SET_CONFIG: | |
1279 | return tuner_s_config(sd, arg); | |
1280 | } | |
1281 | return -ENOIOCTLCMD; | |
1282 | } | |
1283 | ||
a2894e3f MCC |
1284 | /* |
1285 | * Callback structs | |
1286 | */ | |
e8a4a9e7 HV |
1287 | |
1288 | static const struct v4l2_subdev_core_ops tuner_core_ops = { | |
1289 | .log_status = tuner_log_status, | |
f41737ec | 1290 | .s_std = tuner_s_std, |
622b828a | 1291 | .s_power = tuner_s_power, |
e8a4a9e7 HV |
1292 | }; |
1293 | ||
1294 | static const struct v4l2_subdev_tuner_ops tuner_tuner_ops = { | |
e8a4a9e7 HV |
1295 | .s_radio = tuner_s_radio, |
1296 | .g_tuner = tuner_g_tuner, | |
1297 | .s_tuner = tuner_s_tuner, | |
1298 | .s_frequency = tuner_s_frequency, | |
1299 | .g_frequency = tuner_g_frequency, | |
1300 | .s_type_addr = tuner_s_type_addr, | |
1301 | .s_config = tuner_s_config, | |
1302 | }; | |
1303 | ||
1304 | static const struct v4l2_subdev_ops tuner_ops = { | |
1305 | .core = &tuner_core_ops, | |
1306 | .tuner = &tuner_tuner_ops, | |
1307 | }; | |
1308 | ||
a2894e3f MCC |
1309 | /* |
1310 | * I2C structs and module init functions | |
1311 | */ | |
1da177e4 | 1312 | |
af294867 JD |
1313 | static const struct i2c_device_id tuner_id[] = { |
1314 | { "tuner", }, /* autodetect */ | |
1315 | { } | |
1316 | }; | |
1317 | MODULE_DEVICE_TABLE(i2c, tuner_id); | |
1318 | ||
02a2098a HV |
1319 | static struct i2c_driver tuner_driver = { |
1320 | .driver = { | |
1321 | .owner = THIS_MODULE, | |
1322 | .name = "tuner", | |
1323 | }, | |
1324 | .probe = tuner_probe, | |
1325 | .remove = tuner_remove, | |
1326 | .command = tuner_command, | |
1327 | .suspend = tuner_suspend, | |
1328 | .resume = tuner_resume, | |
1329 | .id_table = tuner_id, | |
1da177e4 | 1330 | }; |
1da177e4 | 1331 | |
02a2098a HV |
1332 | static __init int init_tuner(void) |
1333 | { | |
1334 | return i2c_add_driver(&tuner_driver); | |
1335 | } | |
1336 | ||
1337 | static __exit void exit_tuner(void) | |
1338 | { | |
1339 | i2c_del_driver(&tuner_driver); | |
1340 | } | |
1341 | ||
1342 | module_init(init_tuner); | |
1343 | module_exit(exit_tuner); | |
1344 | ||
9f3f71ef MCC |
1345 | MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners"); |
1346 | MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); | |
1347 | MODULE_LICENSE("GPL"); |