diff options
author | Szymon Dziok <b0hoon@o2.pl> | 2014-07-12 16:31:44 +0000 |
---|---|---|
committer | Szymon Dziok <b0hoon@o2.pl> | 2014-07-26 15:36:12 +0000 |
commit | fb373e1f50e8362ccff0db5b8818fbc0dca85b4c (patch) | |
tree | d5dc9c85a41cf0e2311833f115c525bed2bf1583 /firmware/drivers | |
parent | f734eedc1fc014d8358e2c4a26581eec38c2807d (diff) | |
download | rockbox-fb373e1f50e8362ccff0db5b8818fbc0dca85b4c.tar.gz rockbox-fb373e1f50e8362ccff0db5b8818fbc0dca85b4c.zip |
Ak4537: Optimization of the code.
Change-Id: I98e25d7177b24b277a79d8bf8d494dac26553c2c
Diffstat (limited to 'firmware/drivers')
-rw-r--r-- | firmware/drivers/audio/ak4537.c | 138 |
1 files changed, 62 insertions, 76 deletions
diff --git a/firmware/drivers/audio/ak4537.c b/firmware/drivers/audio/ak4537.c index a42b1346d2..67ce9e3ed9 100644 --- a/firmware/drivers/audio/ak4537.c +++ b/firmware/drivers/audio/ak4537.c | |||
@@ -221,120 +221,106 @@ void audiohw_set_frequency(int fsel) | |||
221 | } | 221 | } |
222 | 222 | ||
223 | #if defined(HAVE_RECORDING) | 223 | #if defined(HAVE_RECORDING) |
224 | void audiohw_set_recsrc(int source) | 224 | |
225 | void akc_disable_mic(void) | ||
225 | { | 226 | { |
226 | switch(source) | ||
227 | { | ||
228 | case AUDIO_SRC_PLAYBACK: | ||
229 | /* disable mic power supply */ | 227 | /* disable mic power supply */ |
230 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) | 228 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) |
231 | akc_clear(AK4537_MIC, MPWRE); | 229 | akc_clear(AK4537_MIC, MPWRE); |
232 | #else | 230 | #else |
233 | akc_clear(AK4537_MIC, MPWRI); | 231 | akc_clear(AK4537_MIC, MPWRI); |
234 | #endif | 232 | #endif |
235 | /* power down ADC, mic preamp and line amp */ | 233 | /* power down mic preamp */ |
236 | akc_clear(AK4537_PM1, PMADL | PMMICL | PMIPGL); | 234 | akc_clear(AK4537_PM1, PMMICL); |
237 | akc_clear(AK4537_PM3, PMADR | PMMICR | PMIPGR); | 235 | akc_clear(AK4537_PM3, PMMICR); |
238 | 236 | } | |
239 | /* break ADC -> DAC connection */ | ||
240 | akc_clear(AK4537_MODE2, LOOP); | ||
241 | |||
242 | break; | ||
243 | 237 | ||
244 | #if (INPUT_SRC_CAPS & SRC_CAP_FMRADIO) | 238 | void akc_enable_mic(void) |
245 | case AUDIO_SRC_FMRADIO: | 239 | { |
246 | /* disable mic power supply */ | 240 | /* enable mic power supply */ |
247 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) | 241 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) |
248 | akc_clear(AK4537_MIC, MPWRE); | 242 | /* additionally select external mic */ |
243 | akc_set(AK4537_MIC, MPWRE | MSEL); | ||
249 | #else | 244 | #else |
250 | akc_clear(AK4537_MIC, MPWRI); | 245 | akc_set(AK4537_MIC, MPWRI); |
251 | #endif | 246 | #endif |
252 | /* disable mic preamp */ | 247 | /* power up mic preamp */ |
253 | akc_clear(AK4537_PM1, PMMICL); | 248 | akc_set(AK4537_PM1, PMMICL); |
249 | } | ||
254 | 250 | ||
255 | /* Select line2 input: Radio */ | 251 | void akc_setup_input(unsigned linesel, unsigned gcontrol) |
256 | akc_set(AK4537_PM3, INL | INR); | 252 | { |
253 | /* select line1 or line2 input */ | ||
254 | akc_write_masked(AK4537_PM3, linesel, INL | INR); | ||
257 | /* route ALC output to ADC input */ | 255 | /* route ALC output to ADC input */ |
258 | akc_set(AK4537_MIC, MICAD); | 256 | akc_set(AK4537_MIC, MICAD); |
259 | /* set ALC (automatic level control) to manual mode */ | 257 | /* set ALC (automatic level control) to manual mode */ |
260 | akc_clear(AK4537_ALC1, ALC1); | 258 | akc_clear(AK4537_ALC1, ALC1); |
261 | 259 | /* set gain control to dependent or independent left & right */ | |
262 | /* set gain control to independent left & right gain */ | 260 | akc_write_masked(AK4537_MIC, gcontrol, IPGAC); |
263 | akc_set(AK4537_MIC, IPGAC); | 261 | /* power up left channel ADC and line in */ |
264 | |||
265 | /* power up left channel input and ADC */ | ||
266 | akc_set(AK4537_PM1, PMADL | PMIPGL); | 262 | akc_set(AK4537_PM1, PMADL | PMIPGL); |
267 | /* power up right channel input and ADC */ | 263 | /* power up right channel ADC and line in */ |
268 | akc_set(AK4537_PM3, PMADR | PMIPGR); | 264 | akc_set(AK4537_PM3, PMADR | PMIPGR); |
265 | /* ADC -> DAC, external data to DAC ignored */ | ||
266 | akc_set(AK4537_MODE2, LOOP); | ||
267 | } | ||
268 | |||
269 | void audiohw_set_recsrc(int source) | ||
270 | { | ||
271 | switch(source) | ||
272 | { | ||
273 | case AUDIO_SRC_PLAYBACK: | ||
274 | |||
275 | /* disable microphone */ | ||
276 | akc_disable_mic(); | ||
277 | |||
278 | /* power down ADC and line amp */ | ||
279 | akc_clear(AK4537_PM1, PMADL | PMIPGL); | ||
280 | akc_clear(AK4537_PM3, PMADR | PMIPGR); | ||
281 | |||
282 | /* break ADC -> DAC connection */ | ||
283 | akc_clear(AK4537_MODE2, LOOP); | ||
284 | |||
285 | break; | ||
286 | |||
287 | #if (INPUT_SRC_CAPS & SRC_CAP_FMRADIO) | ||
288 | case AUDIO_SRC_FMRADIO: | ||
289 | |||
290 | /* disable microphone */ | ||
291 | akc_disable_mic(); | ||
292 | |||
293 | /* Select line2 input, set gain control to independent left & right gain */ | ||
294 | akc_setup_input(0xff, 0xff); | ||
269 | 295 | ||
270 | /* set line in vol = 0 dB */ | 296 | /* set line in vol = 0 dB */ |
271 | akc_write(AK4537_IPGAL, 0x2f); | 297 | akc_write(AK4537_IPGAL, 0x2f); |
272 | akc_write(AK4537_IPGAR, 0x2f); | 298 | akc_write(AK4537_IPGAR, 0x2f); |
273 | 299 | ||
274 | /* ADC -> DAC, external data to DAC ignored */ | ||
275 | akc_set(AK4537_MODE2, LOOP); | ||
276 | |||
277 | break; | 300 | break; |
278 | #endif /* INPUT_SRC_CAPS & SRC_CAP_FMRADIO */ | 301 | #endif /* INPUT_SRC_CAPS & SRC_CAP_FMRADIO */ |
279 | 302 | ||
280 | #if (INPUT_SRC_CAPS & SRC_CAP_LINEIN) | 303 | #if (INPUT_SRC_CAPS & SRC_CAP_LINEIN) |
281 | case AUDIO_SRC_LINEIN: | 304 | case AUDIO_SRC_LINEIN: |
282 | /* disable mic power supply */ | ||
283 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) | ||
284 | akc_clear(AK4537_MIC, MPWRE); | ||
285 | #else | ||
286 | akc_clear(AK4537_MIC, MPWRI); | ||
287 | #endif | ||
288 | /* disable mic preamp */ | ||
289 | akc_clear(AK4537_PM1, PMMICL); | ||
290 | |||
291 | /* Select line1 input */ | ||
292 | akc_clear(AK4537_PM3, INL | INR); | ||
293 | /* route ALC output to ADC input */ | ||
294 | akc_set(AK4537_MIC, MICAD); | ||
295 | /* set ALC (automatic level control) to manual mode */ | ||
296 | akc_clear(AK4537_ALC1, ALC1); | ||
297 | 305 | ||
298 | /* set gain control to independent left & right gain */ | 306 | /* disable microphone */ |
299 | akc_set(AK4537_MIC, IPGAC); | 307 | akc_disable_mic(); |
300 | 308 | ||
301 | /* power up left channel input and ADC */ | 309 | /* Select line1 input, set gain control to independent left & right gain */ |
302 | akc_set(AK4537_PM1, PMADL | PMIPGL); | 310 | akc_setup_input(0x00, 0xff); |
303 | /* power up right channel input and ADC */ | ||
304 | akc_set(AK4537_PM3, PMADR | PMIPGR); | ||
305 | |||
306 | /* ADC -> DAC, external data to DAC ignored */ | ||
307 | akc_set(AK4537_MODE2, LOOP); | ||
308 | 311 | ||
309 | break; | 312 | break; |
310 | #endif /* INPUT_SRC_CAPS & SRC_CAP_LINEIN */ | 313 | #endif /* INPUT_SRC_CAPS & SRC_CAP_LINEIN */ |
311 | 314 | ||
312 | #if (INPUT_SRC_CAPS & SRC_CAP_MIC) | 315 | #if (INPUT_SRC_CAPS & SRC_CAP_MIC) |
313 | case AUDIO_SRC_MIC: | 316 | case AUDIO_SRC_MIC: |
314 | /* enable mic power supply */ | ||
315 | #if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925) | ||
316 | /* additionally select external mic */ | ||
317 | akc_set(AK4537_MIC, MPWRE | MSEL); | ||
318 | #else | ||
319 | akc_set(AK4537_MIC, MPWRI); | ||
320 | #endif | ||
321 | |||
322 | /* mic out is connected to line1 input */ | ||
323 | akc_clear(AK4537_PM3, INL | INR); | ||
324 | 317 | ||
325 | /* route ALC output to ADC input */ | 318 | /* enable micropohone */ |
326 | akc_set(AK4537_MIC, MICAD); | 319 | akc_enable_mic(); |
327 | /* set ALC (automatic level control) to manual mode */ | ||
328 | akc_clear(AK4537_ALC1, ALC1); | ||
329 | /* set gain control to 'dependent' (left&right at the same time) */ | ||
330 | akc_clear(AK4537_MIC, IPGAC); | ||
331 | /* power up mic preamp, left channel ADC and line in */ | ||
332 | akc_set(AK4537_PM1, PMMICL | PMIPGL | PMADL); | ||
333 | /* power up right channel ADC and line in */ | ||
334 | akc_set(AK4537_PM3, PMADR | PMIPGR); | ||
335 | 320 | ||
336 | /* ADC -> DAC, external data to DAC ignored */ | 321 | /* Select line1 input (mic connected), set gain control to 'dependent' */ |
337 | akc_set(AK4537_MODE2, LOOP); | 322 | /* (left & right at the same time) */ |
323 | akc_setup_input(0x00, 0x00); | ||
338 | 324 | ||
339 | break; | 325 | break; |
340 | #endif /* INPUT_SRC_CAPS & SRC_CAP_MIC) */ | 326 | #endif /* INPUT_SRC_CAPS & SRC_CAP_MIC) */ |