1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Programming the mspx4xx sound processor family |
4 | * |
5 | * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> |
6 | * |
7 | * what works and what doesn't: |
8 | * |
9 | * AM-Mono |
10 | * Support for Hauppauge cards added (decoding handled by tuner) added by |
11 | * Frederic Crozat <fcrozat@mail.dotcom.fr> |
12 | * |
13 | * FM-Mono |
14 | * should work. The stereo modes are backward compatible to FM-mono, |
15 | * therefore FM-Mono should be always available. |
16 | * |
17 | * FM-Stereo (B/G, used in germany) |
18 | * should work, with autodetect |
19 | * |
20 | * FM-Stereo (satellite) |
21 | * should work, no autodetect (i.e. default is mono, but you can |
22 | * switch to stereo -- untested) |
23 | * |
24 | * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) |
25 | * should work, with autodetect. Support for NICAM was added by |
26 | * Pekka Pietikainen <pp@netppl.fi> |
27 | * |
28 | * TODO: |
29 | * - better SAT support |
30 | * |
31 | * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) |
32 | * using soundcore instead of OSS |
33 | */ |
34 | |
35 | |
36 | #include <linux/kernel.h> |
37 | #include <linux/module.h> |
38 | #include <linux/slab.h> |
39 | #include <linux/i2c.h> |
40 | #include <linux/kthread.h> |
41 | #include <linux/freezer.h> |
42 | #include <linux/videodev2.h> |
43 | #include <media/v4l2-device.h> |
44 | #include <media/v4l2-ioctl.h> |
45 | #include <media/drv-intf/msp3400.h> |
46 | #include <media/i2c/tvaudio.h> |
47 | #include "msp3400-driver.h" |
48 | |
49 | /* ---------------------------------------------------------------------- */ |
50 | |
51 | MODULE_DESCRIPTION("device driver for msp34xx TV sound processor" ); |
52 | MODULE_AUTHOR("Gerd Knorr" ); |
53 | MODULE_LICENSE("GPL" ); |
54 | |
55 | /* module parameters */ |
56 | static int opmode = OPMODE_AUTO; |
57 | int msp_debug; /* msp_debug output */ |
58 | bool msp_once; /* no continuous stereo monitoring */ |
59 | bool msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), |
60 | the autoscan seems work well only with FM... */ |
61 | int msp_standard = 1; /* Override auto detect of audio msp_standard, |
62 | if needed. */ |
63 | bool msp_dolby; |
64 | |
65 | int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual |
66 | (msp34xxg only) 0x00a0-0x03c0 */ |
67 | |
68 | /* read-only */ |
69 | module_param(opmode, int, 0444); |
70 | |
71 | /* read-write */ |
72 | module_param_named(once, msp_once, bool, 0644); |
73 | module_param_named(debug, msp_debug, int, 0644); |
74 | module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); |
75 | module_param_named(standard, msp_standard, int, 0644); |
76 | module_param_named(amsound, msp_amsound, bool, 0644); |
77 | module_param_named(dolby, msp_dolby, bool, 0644); |
78 | |
79 | MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect" ); |
80 | MODULE_PARM_DESC(once, "No continuous stereo monitoring" ); |
81 | MODULE_PARM_DESC(debug, "Enable debug messages [0-3]" ); |
82 | MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo" ); |
83 | MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect" ); |
84 | MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan" ); |
85 | MODULE_PARM_DESC(dolby, "Activates Dolby processing" ); |
86 | |
87 | /* ---------------------------------------------------------------------- */ |
88 | |
89 | /* control subaddress */ |
90 | #define I2C_MSP_CONTROL 0x00 |
91 | /* demodulator unit subaddress */ |
92 | #define I2C_MSP_DEM 0x10 |
93 | /* DSP unit subaddress */ |
94 | #define I2C_MSP_DSP 0x12 |
95 | |
96 | |
97 | /* ----------------------------------------------------------------------- */ |
98 | /* functions for talking to the MSP3400C Sound processor */ |
99 | |
100 | int msp_reset(struct i2c_client *client) |
101 | { |
102 | /* reset and read revision code */ |
103 | static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; |
104 | static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; |
105 | static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; |
106 | u8 read[2]; |
107 | struct i2c_msg reset[2] = { |
108 | { |
109 | .addr = client->addr, |
110 | .flags = I2C_M_IGNORE_NAK, |
111 | .len = 3, |
112 | .buf = reset_off |
113 | }, |
114 | { |
115 | .addr = client->addr, |
116 | .flags = I2C_M_IGNORE_NAK, |
117 | .len = 3, |
118 | .buf = reset_on |
119 | }, |
120 | }; |
121 | struct i2c_msg test[2] = { |
122 | { |
123 | .addr = client->addr, |
124 | .len = 3, |
125 | .buf = write |
126 | }, |
127 | { |
128 | .addr = client->addr, |
129 | .flags = I2C_M_RD, |
130 | .len = 2, |
131 | .buf = read |
132 | }, |
133 | }; |
134 | |
135 | dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_reset\n" ); |
136 | if (i2c_transfer(adap: client->adapter, msgs: &reset[0], num: 1) != 1 || |
137 | i2c_transfer(adap: client->adapter, msgs: &reset[1], num: 1) != 1 || |
138 | i2c_transfer(adap: client->adapter, msgs: test, num: 2) != 2) { |
139 | dev_err(&client->dev, "chip reset failed\n" ); |
140 | return -1; |
141 | } |
142 | return 0; |
143 | } |
144 | |
145 | static int msp_read(struct i2c_client *client, int dev, int addr) |
146 | { |
147 | int err, retval; |
148 | u8 write[3]; |
149 | u8 read[2]; |
150 | struct i2c_msg msgs[2] = { |
151 | { |
152 | .addr = client->addr, |
153 | .len = 3, |
154 | .buf = write |
155 | }, |
156 | { |
157 | .addr = client->addr, |
158 | .flags = I2C_M_RD, |
159 | .len = 2, |
160 | .buf = read |
161 | } |
162 | }; |
163 | |
164 | write[0] = dev + 1; |
165 | write[1] = addr >> 8; |
166 | write[2] = addr & 0xff; |
167 | |
168 | for (err = 0; err < 3; err++) { |
169 | if (i2c_transfer(adap: client->adapter, msgs, num: 2) == 2) |
170 | break; |
171 | dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n" , err, |
172 | dev, addr); |
173 | schedule_timeout_interruptible(timeout: msecs_to_jiffies(m: 10)); |
174 | } |
175 | if (err == 3) { |
176 | dev_warn(&client->dev, "resetting chip, sound will go off.\n" ); |
177 | msp_reset(client); |
178 | return -1; |
179 | } |
180 | retval = read[0] << 8 | read[1]; |
181 | dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_read(0x%x, 0x%x): 0x%x\n" , |
182 | dev, addr, retval); |
183 | return retval; |
184 | } |
185 | |
186 | int msp_read_dem(struct i2c_client *client, int addr) |
187 | { |
188 | return msp_read(client, I2C_MSP_DEM, addr); |
189 | } |
190 | |
191 | int msp_read_dsp(struct i2c_client *client, int addr) |
192 | { |
193 | return msp_read(client, I2C_MSP_DSP, addr); |
194 | } |
195 | |
196 | static int msp_write(struct i2c_client *client, int dev, int addr, int val) |
197 | { |
198 | int err; |
199 | u8 buffer[5]; |
200 | |
201 | buffer[0] = dev; |
202 | buffer[1] = addr >> 8; |
203 | buffer[2] = addr & 0xff; |
204 | buffer[3] = val >> 8; |
205 | buffer[4] = val & 0xff; |
206 | |
207 | dev_dbg_lvl(&client->dev, 3, msp_debug, "msp_write(0x%x, 0x%x, 0x%x)\n" , |
208 | dev, addr, val); |
209 | for (err = 0; err < 3; err++) { |
210 | if (i2c_master_send(client, buf: buffer, count: 5) == 5) |
211 | break; |
212 | dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n" , err, |
213 | dev, addr); |
214 | schedule_timeout_interruptible(timeout: msecs_to_jiffies(m: 10)); |
215 | } |
216 | if (err == 3) { |
217 | dev_warn(&client->dev, "resetting chip, sound will go off.\n" ); |
218 | msp_reset(client); |
219 | return -1; |
220 | } |
221 | return 0; |
222 | } |
223 | |
224 | int msp_write_dem(struct i2c_client *client, int addr, int val) |
225 | { |
226 | return msp_write(client, I2C_MSP_DEM, addr, val); |
227 | } |
228 | |
229 | int msp_write_dsp(struct i2c_client *client, int addr, int val) |
230 | { |
231 | return msp_write(client, I2C_MSP_DSP, addr, val); |
232 | } |
233 | |
234 | /* ----------------------------------------------------------------------- * |
235 | * bits 9 8 5 - SCART DSP input Select: |
236 | * 0 0 0 - SCART 1 to DSP input (reset position) |
237 | * 0 1 0 - MONO to DSP input |
238 | * 1 0 0 - SCART 2 to DSP input |
239 | * 1 1 1 - Mute DSP input |
240 | * |
241 | * bits 11 10 6 - SCART 1 Output Select: |
242 | * 0 0 0 - undefined (reset position) |
243 | * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) |
244 | * 1 0 0 - MONO input to SCART 1 Output |
245 | * 1 1 0 - SCART 1 DA to SCART 1 Output |
246 | * 0 0 1 - SCART 2 DA to SCART 1 Output |
247 | * 0 1 1 - SCART 1 Input to SCART 1 Output |
248 | * 1 1 1 - Mute SCART 1 Output |
249 | * |
250 | * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): |
251 | * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) |
252 | * 0 1 0 - SCART 1 Input to SCART 2 Output |
253 | * 1 0 0 - MONO input to SCART 2 Output |
254 | * 0 0 1 - SCART 2 DA to SCART 2 Output |
255 | * 0 1 1 - SCART 2 Input to SCART 2 Output |
256 | * 1 1 0 - Mute SCART 2 Output |
257 | * |
258 | * Bits 4 to 0 should be zero. |
259 | * ----------------------------------------------------------------------- */ |
260 | |
261 | static int scarts[3][9] = { |
262 | /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ |
263 | /* SCART DSP Input select */ |
264 | { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, |
265 | /* SCART1 Output select */ |
266 | { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, |
267 | /* SCART2 Output select */ |
268 | { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, |
269 | }; |
270 | |
271 | static char *scart_names[] = { |
272 | "in1" , "in2" , "in3" , "in4" , "in1 da" , "in2 da" , "mono" , "mute" |
273 | }; |
274 | |
275 | void msp_set_scart(struct i2c_client *client, int in, int out) |
276 | { |
277 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
278 | |
279 | state->in_scart = in; |
280 | |
281 | if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { |
282 | if (-1 == scarts[out][in + 1]) |
283 | return; |
284 | |
285 | state->acb &= ~scarts[out][0]; |
286 | state->acb |= scarts[out][in + 1]; |
287 | } else |
288 | state->acb = 0xf60; /* Mute Input and SCART 1 Output */ |
289 | |
290 | dev_dbg_lvl(&client->dev, 1, msp_debug, "scart switch: %s => %d (ACB=0x%04x)\n" , |
291 | scart_names[in], out, state->acb); |
292 | msp_write_dsp(client, addr: 0x13, val: state->acb); |
293 | |
294 | /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ |
295 | if (state->has_i2s_conf) |
296 | msp_write_dem(client, addr: 0x40, val: state->i2s_mode); |
297 | } |
298 | |
299 | /* ------------------------------------------------------------------------ */ |
300 | |
301 | static void msp_wake_thread(struct i2c_client *client) |
302 | { |
303 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
304 | |
305 | if (NULL == state->kthread) |
306 | return; |
307 | state->watch_stereo = 0; |
308 | state->restart = 1; |
309 | wake_up_interruptible(&state->wq); |
310 | } |
311 | |
312 | int msp_sleep(struct msp_state *state, int msec) |
313 | { |
314 | long timeout; |
315 | |
316 | timeout = msec < 0 ? MAX_SCHEDULE_TIMEOUT : msecs_to_jiffies(m: msec); |
317 | |
318 | wait_event_freezable_timeout(state->wq, kthread_should_stop() || |
319 | state->restart, timeout); |
320 | |
321 | return state->restart; |
322 | } |
323 | |
324 | /* ------------------------------------------------------------------------ */ |
325 | |
326 | static int msp_s_ctrl(struct v4l2_ctrl *ctrl) |
327 | { |
328 | struct msp_state *state = ctrl_to_state(ctrl); |
329 | struct i2c_client *client = v4l2_get_subdevdata(sd: &state->sd); |
330 | int val = ctrl->val; |
331 | |
332 | switch (ctrl->id) { |
333 | case V4L2_CID_AUDIO_VOLUME: { |
334 | /* audio volume cluster */ |
335 | int reallymuted = state->muted->val | state->scan_in_progress; |
336 | |
337 | if (!reallymuted) |
338 | val = (val * 0x7f / 65535) << 8; |
339 | |
340 | dev_dbg_lvl(&client->dev, 1, msp_debug, "mute=%s scanning=%s volume=%d\n" , |
341 | state->muted->val ? "on" : "off" , |
342 | state->scan_in_progress ? "yes" : "no" , |
343 | state->volume->val); |
344 | |
345 | msp_write_dsp(client, addr: 0x0000, val); |
346 | msp_write_dsp(client, addr: 0x0007, val: reallymuted ? 0x1 : (val | 0x1)); |
347 | if (state->has_scart2_out_volume) |
348 | msp_write_dsp(client, addr: 0x0040, val: reallymuted ? 0x1 : (val | 0x1)); |
349 | if (state->has_headphones) |
350 | msp_write_dsp(client, addr: 0x0006, val); |
351 | break; |
352 | } |
353 | |
354 | case V4L2_CID_AUDIO_BASS: |
355 | val = ((val - 32768) * 0x60 / 65535) << 8; |
356 | msp_write_dsp(client, addr: 0x0002, val); |
357 | if (state->has_headphones) |
358 | msp_write_dsp(client, addr: 0x0031, val); |
359 | break; |
360 | |
361 | case V4L2_CID_AUDIO_TREBLE: |
362 | val = ((val - 32768) * 0x60 / 65535) << 8; |
363 | msp_write_dsp(client, addr: 0x0003, val); |
364 | if (state->has_headphones) |
365 | msp_write_dsp(client, addr: 0x0032, val); |
366 | break; |
367 | |
368 | case V4L2_CID_AUDIO_LOUDNESS: |
369 | val = val ? ((5 * 4) << 8) : 0; |
370 | msp_write_dsp(client, addr: 0x0004, val); |
371 | if (state->has_headphones) |
372 | msp_write_dsp(client, addr: 0x0033, val); |
373 | break; |
374 | |
375 | case V4L2_CID_AUDIO_BALANCE: |
376 | val = (u8)((val / 256) - 128); |
377 | msp_write_dsp(client, addr: 0x0001, val: val << 8); |
378 | if (state->has_headphones) |
379 | msp_write_dsp(client, addr: 0x0030, val: val << 8); |
380 | break; |
381 | |
382 | default: |
383 | return -EINVAL; |
384 | } |
385 | return 0; |
386 | } |
387 | |
388 | void msp_update_volume(struct msp_state *state) |
389 | { |
390 | /* Force an update of the volume/mute cluster */ |
391 | v4l2_ctrl_lock(ctrl: state->volume); |
392 | state->volume->val = state->volume->cur.val; |
393 | state->muted->val = state->muted->cur.val; |
394 | msp_s_ctrl(ctrl: state->volume); |
395 | v4l2_ctrl_unlock(ctrl: state->volume); |
396 | } |
397 | |
398 | /* --- v4l2 ioctls --- */ |
399 | static int msp_s_radio(struct v4l2_subdev *sd) |
400 | { |
401 | struct msp_state *state = to_state(sd); |
402 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
403 | |
404 | if (state->radio) |
405 | return 0; |
406 | state->radio = 1; |
407 | dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to radio mode\n" ); |
408 | state->watch_stereo = 0; |
409 | switch (state->opmode) { |
410 | case OPMODE_MANUAL: |
411 | /* set msp3400 to FM radio mode */ |
412 | msp3400c_set_mode(client, MSP_MODE_FM_RADIO); |
413 | msp3400c_set_carrier(client, MSP_CARRIER(10.7), |
414 | MSP_CARRIER(10.7)); |
415 | msp_update_volume(state); |
416 | break; |
417 | case OPMODE_AUTODETECT: |
418 | case OPMODE_AUTOSELECT: |
419 | /* the thread will do for us */ |
420 | msp_wake_thread(client); |
421 | break; |
422 | } |
423 | return 0; |
424 | } |
425 | |
426 | static int msp_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) |
427 | { |
428 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
429 | |
430 | /* new channel -- kick audio carrier scan */ |
431 | msp_wake_thread(client); |
432 | return 0; |
433 | } |
434 | |
435 | static int msp_querystd(struct v4l2_subdev *sd, v4l2_std_id *id) |
436 | { |
437 | struct msp_state *state = to_state(sd); |
438 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
439 | |
440 | *id &= state->detected_std; |
441 | |
442 | dev_dbg_lvl(&client->dev, 2, msp_debug, |
443 | "detected standard: %s(0x%08Lx)\n" , |
444 | msp_standard_std_name(state->std), state->detected_std); |
445 | |
446 | return 0; |
447 | } |
448 | |
449 | static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) |
450 | { |
451 | struct msp_state *state = to_state(sd); |
452 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
453 | int update = state->radio || state->v4l2_std != id; |
454 | |
455 | state->v4l2_std = id; |
456 | state->radio = 0; |
457 | if (update) |
458 | msp_wake_thread(client); |
459 | return 0; |
460 | } |
461 | |
462 | static int msp_s_routing(struct v4l2_subdev *sd, |
463 | u32 input, u32 output, u32 config) |
464 | { |
465 | struct msp_state *state = to_state(sd); |
466 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
467 | int tuner = (input >> 3) & 1; |
468 | int sc_in = input & 0x7; |
469 | int sc1_out = output & 0xf; |
470 | int sc2_out = (output >> 4) & 0xf; |
471 | u16 val, reg; |
472 | int i; |
473 | int extern_input = 1; |
474 | |
475 | if (state->route_in == input && state->route_out == output) |
476 | return 0; |
477 | state->route_in = input; |
478 | state->route_out = output; |
479 | /* check if the tuner input is used */ |
480 | for (i = 0; i < 5; i++) { |
481 | if (((input >> (4 + i * 4)) & 0xf) == 0) |
482 | extern_input = 0; |
483 | } |
484 | state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; |
485 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; |
486 | msp_set_scart(client, in: sc_in, out: 0); |
487 | msp_set_scart(client, in: sc1_out, out: 1); |
488 | msp_set_scart(client, in: sc2_out, out: 2); |
489 | msp_set_audmode(client); |
490 | reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; |
491 | val = msp_read_dem(client, addr: reg); |
492 | msp_write_dem(client, addr: reg, val: (val & ~0x100) | (tuner << 8)); |
493 | /* wake thread when a new input is chosen */ |
494 | msp_wake_thread(client); |
495 | return 0; |
496 | } |
497 | |
498 | static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
499 | { |
500 | struct msp_state *state = to_state(sd); |
501 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
502 | |
503 | if (vt->type != V4L2_TUNER_ANALOG_TV) |
504 | return 0; |
505 | if (!state->radio) { |
506 | if (state->opmode == OPMODE_AUTOSELECT) |
507 | msp_detect_stereo(client); |
508 | vt->rxsubchans = state->rxsubchans; |
509 | } |
510 | vt->audmode = state->audmode; |
511 | vt->capability |= V4L2_TUNER_CAP_STEREO | |
512 | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; |
513 | return 0; |
514 | } |
515 | |
516 | static int msp_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) |
517 | { |
518 | struct msp_state *state = to_state(sd); |
519 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
520 | |
521 | if (state->radio) /* TODO: add mono/stereo support for radio */ |
522 | return 0; |
523 | if (state->audmode == vt->audmode) |
524 | return 0; |
525 | state->audmode = vt->audmode; |
526 | /* only set audmode */ |
527 | msp_set_audmode(client); |
528 | return 0; |
529 | } |
530 | |
531 | static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) |
532 | { |
533 | struct msp_state *state = to_state(sd); |
534 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
535 | |
536 | dev_dbg_lvl(&client->dev, 1, msp_debug, "Setting I2S speed to %d\n" , freq); |
537 | |
538 | switch (freq) { |
539 | case 1024000: |
540 | state->i2s_mode = 0; |
541 | break; |
542 | case 2048000: |
543 | state->i2s_mode = 1; |
544 | break; |
545 | default: |
546 | return -EINVAL; |
547 | } |
548 | return 0; |
549 | } |
550 | |
551 | static int msp_log_status(struct v4l2_subdev *sd) |
552 | { |
553 | struct msp_state *state = to_state(sd); |
554 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
555 | const char *p; |
556 | char prefix[sizeof(sd->name) + 20]; |
557 | |
558 | if (state->opmode == OPMODE_AUTOSELECT) |
559 | msp_detect_stereo(client); |
560 | dev_info(&client->dev, "%s rev1 = 0x%04x rev2 = 0x%04x\n" , |
561 | client->name, state->rev1, state->rev2); |
562 | snprintf(buf: prefix, size: sizeof(prefix), fmt: "%s: Audio: " , sd->name); |
563 | v4l2_ctrl_handler_log_status(hdl: &state->hdl, prefix); |
564 | switch (state->mode) { |
565 | case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)" ; break; |
566 | case MSP_MODE_FM_RADIO: p = "FM Radio" ; break; |
567 | case MSP_MODE_FM_TERRA: p = "Terrestrial FM-mono/stereo" ; break; |
568 | case MSP_MODE_FM_SAT: p = "Satellite FM-mono" ; break; |
569 | case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)" ; break; |
570 | case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)" ; break; |
571 | case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)" ; break; |
572 | case MSP_MODE_BTSC: p = "BTSC" ; break; |
573 | case MSP_MODE_EXTERN: p = "External input" ; break; |
574 | default: p = "unknown" ; break; |
575 | } |
576 | if (state->mode == MSP_MODE_EXTERN) { |
577 | dev_info(&client->dev, "Mode: %s\n" , p); |
578 | } else if (state->opmode == OPMODE_MANUAL) { |
579 | dev_info(&client->dev, "Mode: %s (%s%s)\n" , p, |
580 | (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono" , |
581 | (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "" ); |
582 | } else { |
583 | if (state->opmode == OPMODE_AUTODETECT) |
584 | dev_info(&client->dev, "Mode: %s\n" , p); |
585 | dev_info(&client->dev, "Standard: %s (%s%s)\n" , |
586 | msp_standard_std_name(state->std), |
587 | (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono" , |
588 | (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "" ); |
589 | } |
590 | dev_info(&client->dev, "Audmode: 0x%04x\n" , state->audmode); |
591 | dev_info(&client->dev, "Routing: 0x%08x (input) 0x%08x (output)\n" , |
592 | state->route_in, state->route_out); |
593 | dev_info(&client->dev, "ACB: 0x%04x\n" , state->acb); |
594 | return 0; |
595 | } |
596 | |
597 | #ifdef CONFIG_PM_SLEEP |
598 | static int msp_suspend(struct device *dev) |
599 | { |
600 | struct i2c_client *client = to_i2c_client(dev); |
601 | dev_dbg_lvl(&client->dev, 1, msp_debug, "suspend\n" ); |
602 | msp_reset(client); |
603 | return 0; |
604 | } |
605 | |
606 | static int msp_resume(struct device *dev) |
607 | { |
608 | struct i2c_client *client = to_i2c_client(dev); |
609 | dev_dbg_lvl(&client->dev, 1, msp_debug, "resume\n" ); |
610 | msp_wake_thread(client); |
611 | return 0; |
612 | } |
613 | #endif |
614 | |
615 | /* ----------------------------------------------------------------------- */ |
616 | |
617 | static const struct v4l2_ctrl_ops msp_ctrl_ops = { |
618 | .s_ctrl = msp_s_ctrl, |
619 | }; |
620 | |
621 | static const struct v4l2_subdev_core_ops msp_core_ops = { |
622 | .log_status = msp_log_status, |
623 | }; |
624 | |
625 | static const struct v4l2_subdev_video_ops msp_video_ops = { |
626 | .s_std = msp_s_std, |
627 | .querystd = msp_querystd, |
628 | }; |
629 | |
630 | static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { |
631 | .s_frequency = msp_s_frequency, |
632 | .g_tuner = msp_g_tuner, |
633 | .s_tuner = msp_s_tuner, |
634 | .s_radio = msp_s_radio, |
635 | }; |
636 | |
637 | static const struct v4l2_subdev_audio_ops msp_audio_ops = { |
638 | .s_routing = msp_s_routing, |
639 | .s_i2s_clock_freq = msp_s_i2s_clock_freq, |
640 | }; |
641 | |
642 | static const struct v4l2_subdev_ops msp_ops = { |
643 | .core = &msp_core_ops, |
644 | .video = &msp_video_ops, |
645 | .tuner = &msp_tuner_ops, |
646 | .audio = &msp_audio_ops, |
647 | }; |
648 | |
649 | /* ----------------------------------------------------------------------- */ |
650 | |
651 | |
652 | static const char * const opmode_str[] = { |
653 | [OPMODE_MANUAL] = "manual" , |
654 | [OPMODE_AUTODETECT] = "autodetect" , |
655 | [OPMODE_AUTOSELECT] = "autodetect and autoselect" , |
656 | }; |
657 | |
658 | static int msp_probe(struct i2c_client *client) |
659 | { |
660 | const struct i2c_device_id *id = i2c_client_get_device_id(client); |
661 | struct msp_state *state; |
662 | struct v4l2_subdev *sd; |
663 | struct v4l2_ctrl_handler *hdl; |
664 | int (*thread_func)(void *data) = NULL; |
665 | int msp_hard; |
666 | int msp_family; |
667 | int msp_revision; |
668 | int msp_product, msp_prod_hi, msp_prod_lo; |
669 | int msp_rom; |
670 | #if defined(CONFIG_MEDIA_CONTROLLER) |
671 | int ret; |
672 | #endif |
673 | |
674 | if (!id) |
675 | strscpy(client->name, "msp3400" , sizeof(client->name)); |
676 | |
677 | if (msp_reset(client) == -1) { |
678 | dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 not found\n" ); |
679 | return -ENODEV; |
680 | } |
681 | |
682 | state = devm_kzalloc(dev: &client->dev, size: sizeof(*state), GFP_KERNEL); |
683 | if (!state) |
684 | return -ENOMEM; |
685 | |
686 | sd = &state->sd; |
687 | v4l2_i2c_subdev_init(sd, client, ops: &msp_ops); |
688 | |
689 | #if defined(CONFIG_MEDIA_CONTROLLER) |
690 | state->pads[MSP3400_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK; |
691 | state->pads[MSP3400_PAD_IF_INPUT].sig_type = PAD_SIGNAL_AUDIO; |
692 | state->pads[MSP3400_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE; |
693 | state->pads[MSP3400_PAD_OUT].sig_type = PAD_SIGNAL_AUDIO; |
694 | |
695 | sd->entity.function = MEDIA_ENT_F_IF_AUD_DECODER; |
696 | |
697 | ret = media_entity_pads_init(entity: &sd->entity, num_pads: 2, pads: state->pads); |
698 | if (ret < 0) |
699 | return ret; |
700 | #endif |
701 | |
702 | state->v4l2_std = V4L2_STD_NTSC; |
703 | state->detected_std = V4L2_STD_ALL; |
704 | state->audmode = V4L2_TUNER_MODE_STEREO; |
705 | state->input = -1; |
706 | state->i2s_mode = 0; |
707 | init_waitqueue_head(&state->wq); |
708 | /* These are the reset input/output positions */ |
709 | state->route_in = MSP_INPUT_DEFAULT; |
710 | state->route_out = MSP_OUTPUT_DEFAULT; |
711 | |
712 | state->rev1 = msp_read_dsp(client, addr: 0x1e); |
713 | if (state->rev1 != -1) |
714 | state->rev2 = msp_read_dsp(client, addr: 0x1f); |
715 | dev_dbg_lvl(&client->dev, 1, msp_debug, "rev1=0x%04x, rev2=0x%04x\n" , |
716 | state->rev1, state->rev2); |
717 | if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { |
718 | dev_dbg_lvl(&client->dev, 1, msp_debug, |
719 | "not an msp3400 (cannot read chip version)\n" ); |
720 | return -ENODEV; |
721 | } |
722 | |
723 | msp_family = ((state->rev1 >> 4) & 0x0f) + 3; |
724 | msp_product = (state->rev2 >> 8) & 0xff; |
725 | msp_prod_hi = msp_product / 10; |
726 | msp_prod_lo = msp_product % 10; |
727 | msp_revision = (state->rev1 & 0x0f) + '@'; |
728 | msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; |
729 | msp_rom = state->rev2 & 0x1f; |
730 | /* Rev B=2, C=3, D=4, G=7 */ |
731 | state->ident = msp_family * 10000 + 4000 + msp_product * 10 + |
732 | msp_revision - '@'; |
733 | |
734 | /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ |
735 | state->has_nicam = |
736 | msp_prod_hi == 1 || msp_prod_hi == 5; |
737 | /* Has radio support: was added with revision G */ |
738 | state->has_radio = |
739 | msp_revision >= 'G'; |
740 | /* Has headphones output: not for stripped down products */ |
741 | state->has_headphones = |
742 | msp_prod_lo < 5; |
743 | /* Has scart2 input: not in stripped down products of the '3' family */ |
744 | state->has_scart2 = |
745 | msp_family >= 4 || msp_prod_lo < 7; |
746 | /* Has scart3 input: not in stripped down products of the '3' family */ |
747 | state->has_scart3 = |
748 | msp_family >= 4 || msp_prod_lo < 5; |
749 | /* Has scart4 input: not in pre D revisions, not in stripped D revs */ |
750 | state->has_scart4 = |
751 | msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); |
752 | /* Has scart2 output: not in stripped down products of |
753 | * the '3' family */ |
754 | state->has_scart2_out = |
755 | msp_family >= 4 || msp_prod_lo < 5; |
756 | /* Has scart2 a volume control? Not in pre-D revisions. */ |
757 | state->has_scart2_out_volume = |
758 | msp_revision > 'C' && state->has_scart2_out; |
759 | /* Has a configurable i2s out? */ |
760 | state->has_i2s_conf = |
761 | msp_revision >= 'G' && msp_prod_lo < 7; |
762 | /* Has subwoofer output: not in pre-D revs and not in stripped down |
763 | * products */ |
764 | state->has_subwoofer = |
765 | msp_revision >= 'D' && msp_prod_lo < 5; |
766 | /* Has soundprocessing (bass/treble/balance/loudness/equalizer): |
767 | * not in stripped down products */ |
768 | state->has_sound_processing = |
769 | msp_prod_lo < 7; |
770 | /* Has Virtual Dolby Surround: only in msp34x1 */ |
771 | state->has_virtual_dolby_surround = |
772 | msp_revision == 'G' && msp_prod_lo == 1; |
773 | /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ |
774 | state->has_dolby_pro_logic = |
775 | msp_revision == 'G' && msp_prod_lo == 2; |
776 | /* The msp343xG supports BTSC only and cannot do Automatic Standard |
777 | * Detection. */ |
778 | state->force_btsc = |
779 | msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; |
780 | |
781 | state->opmode = opmode; |
782 | if (state->opmode < OPMODE_MANUAL |
783 | || state->opmode > OPMODE_AUTOSELECT) { |
784 | /* MSP revision G and up have both autodetect and autoselect */ |
785 | if (msp_revision >= 'G') |
786 | state->opmode = OPMODE_AUTOSELECT; |
787 | /* MSP revision D and up have autodetect */ |
788 | else if (msp_revision >= 'D') |
789 | state->opmode = OPMODE_AUTODETECT; |
790 | else |
791 | state->opmode = OPMODE_MANUAL; |
792 | } |
793 | |
794 | hdl = &state->hdl; |
795 | v4l2_ctrl_handler_init(hdl, 6); |
796 | if (state->has_sound_processing) { |
797 | v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
798 | V4L2_CID_AUDIO_BASS, min: 0, max: 65535, step: 65535 / 100, def: 32768); |
799 | v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
800 | V4L2_CID_AUDIO_TREBLE, min: 0, max: 65535, step: 65535 / 100, def: 32768); |
801 | v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
802 | V4L2_CID_AUDIO_LOUDNESS, min: 0, max: 1, step: 1, def: 0); |
803 | } |
804 | state->volume = v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
805 | V4L2_CID_AUDIO_VOLUME, min: 0, max: 65535, step: 65535 / 100, def: 58880); |
806 | v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
807 | V4L2_CID_AUDIO_BALANCE, min: 0, max: 65535, step: 65535 / 100, def: 32768); |
808 | state->muted = v4l2_ctrl_new_std(hdl, ops: &msp_ctrl_ops, |
809 | V4L2_CID_AUDIO_MUTE, min: 0, max: 1, step: 1, def: 0); |
810 | sd->ctrl_handler = hdl; |
811 | if (hdl->error) { |
812 | int err = hdl->error; |
813 | |
814 | v4l2_ctrl_handler_free(hdl); |
815 | return err; |
816 | } |
817 | |
818 | v4l2_ctrl_cluster(ncontrols: 2, controls: &state->volume); |
819 | v4l2_ctrl_handler_setup(hdl); |
820 | |
821 | dev_info(&client->dev, |
822 | "MSP%d4%02d%c-%c%d found on %s: supports %s%s%s, mode is %s\n" , |
823 | msp_family, msp_product, |
824 | msp_revision, msp_hard, msp_rom, |
825 | client->adapter->name, |
826 | (state->has_nicam) ? "nicam" : "" , |
827 | (state->has_nicam && state->has_radio) ? " and " : "" , |
828 | (state->has_radio) ? "radio" : "" , |
829 | opmode_str[state->opmode]); |
830 | |
831 | /* version-specific initialization */ |
832 | switch (state->opmode) { |
833 | case OPMODE_MANUAL: |
834 | thread_func = msp3400c_thread; |
835 | break; |
836 | case OPMODE_AUTODETECT: |
837 | thread_func = msp3410d_thread; |
838 | break; |
839 | case OPMODE_AUTOSELECT: |
840 | thread_func = msp34xxg_thread; |
841 | break; |
842 | } |
843 | |
844 | /* startup control thread if needed */ |
845 | if (thread_func) { |
846 | state->kthread = kthread_run(thread_func, client, "msp34xx" ); |
847 | |
848 | if (IS_ERR(ptr: state->kthread)) |
849 | dev_warn(&client->dev, "kernel_thread() failed\n" ); |
850 | msp_wake_thread(client); |
851 | } |
852 | return 0; |
853 | } |
854 | |
855 | static void msp_remove(struct i2c_client *client) |
856 | { |
857 | struct msp_state *state = to_state(sd: i2c_get_clientdata(client)); |
858 | |
859 | v4l2_device_unregister_subdev(sd: &state->sd); |
860 | /* shutdown control thread */ |
861 | if (state->kthread) { |
862 | state->restart = 1; |
863 | kthread_stop(k: state->kthread); |
864 | } |
865 | msp_reset(client); |
866 | |
867 | v4l2_ctrl_handler_free(hdl: &state->hdl); |
868 | } |
869 | |
870 | /* ----------------------------------------------------------------------- */ |
871 | |
872 | static const struct dev_pm_ops msp3400_pm_ops = { |
873 | SET_SYSTEM_SLEEP_PM_OPS(msp_suspend, msp_resume) |
874 | }; |
875 | |
876 | static const struct i2c_device_id msp_id[] = { |
877 | { "msp3400" , 0 }, |
878 | { } |
879 | }; |
880 | MODULE_DEVICE_TABLE(i2c, msp_id); |
881 | |
882 | static struct i2c_driver msp_driver = { |
883 | .driver = { |
884 | .name = "msp3400" , |
885 | .pm = &msp3400_pm_ops, |
886 | }, |
887 | .probe = msp_probe, |
888 | .remove = msp_remove, |
889 | .id_table = msp_id, |
890 | }; |
891 | |
892 | module_i2c_driver(msp_driver); |
893 | |