1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Driver for AS3514 and compatible audio codec
12 * Copyright (c) 2007 Daniel Ankers
13 * Copyright (c) 2007 Christian Gmeiner
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
23 ****************************************************************************/
35 * This drivers supports:
36 * as3514 , as used in the PP targets
37 * as3515 , as used in the as3525 targets
38 * as3543 , as used in the as3525v2 targets
41 #if CONFIG_CPU == AS3525
42 /* AMS Sansas based on the AS3525 use the LINE2 input for the analog radio
43 signal instead of LINE1 */
44 #define AS3514_LINE_IN_R AS3514_LINE_IN2_R
45 #define AS3514_LINE_IN_L AS3514_LINE_IN2_L
46 #define ADC_R_ADCMUX_LINE_IN ADC_R_ADCMUX_LINE_IN2
47 #define AUDIOSET1_LIN_on AUDIOSET1_LIN2_on
49 #elif CONFIG_CPU == AS3525v2
50 /* There is only 1 pair of registers on AS3543, the line input is selectable in
52 #define AS3514_LINE_IN_R AS3514_LINE_IN1_R
53 #define AS3514_LINE_IN_L AS3514_LINE_IN1_L
54 #define ADC_R_ADCMUX_LINE_IN ADC_R_ADCMUX_LINE_IN2
55 #define AUDIOSET1_LIN_on AUDIOSET1_LIN1_on
57 #else /* PP use line1 */
59 #define AS3514_LINE_IN_R AS3514_LINE_IN1_R
60 #define AS3514_LINE_IN_L AS3514_LINE_IN1_L
61 #define ADC_R_ADCMUX_LINE_IN ADC_R_ADCMUX_LINE_IN1
62 #define AUDIOSET1_LIN_on AUDIOSET1_LIN1_on
66 const struct sound_settings_info audiohw_settings
[] = {
67 [SOUND_VOLUME
] = {"dB", 0, 1, VOLUME_MIN
/10, 6, -25},
68 /* HAVE_SW_TONE_CONTROLS */
69 [SOUND_BASS
] = {"dB", 0, 1, -24, 24, 0},
70 [SOUND_TREBLE
] = {"dB", 0, 1, -24, 24, 0},
71 [SOUND_BALANCE
] = {"%", 0, 1,-100, 100, 0},
72 [SOUND_CHANNELS
] = {"", 0, 1, 0, 5, 0},
73 [SOUND_STEREO_WIDTH
] = {"%", 0, 5, 0, 250, 100},
75 [SOUND_MIC_GAIN
] = {"dB", 1, 1, 0, 39, 23},
76 [SOUND_LEFT_GAIN
] = {"dB", 1, 1, 0, 31, 23},
77 [SOUND_RIGHT_GAIN
] = {"dB", 1, 1, 0, 31, 23},
81 /* Shadow registers */
82 static uint8_t as3514_regs
[AS3514_NUM_AUDIO_REGS
]; /* 8-bit registers */
85 * little helper method to set register values.
86 * With the help of as3514_regs, we minimize i2c
89 static void as3514_write(unsigned int reg
, unsigned int value
)
91 ascodec_write(reg
, value
);
93 if (reg
< AS3514_NUM_AUDIO_REGS
)
94 as3514_regs
[reg
] = value
;
97 /* Helpers to set/clear bits */
98 static void as3514_set(unsigned int reg
, unsigned int bits
)
100 as3514_write(reg
, as3514_regs
[reg
] | bits
);
103 static void as3514_clear(unsigned int reg
, unsigned int bits
)
105 as3514_write(reg
, as3514_regs
[reg
] & ~bits
);
108 static void as3514_write_masked(unsigned int reg
, unsigned int bits
,
111 as3514_write(reg
, (as3514_regs
[reg
] & ~mask
) | (bits
& mask
));
114 /* convert tenth of dB volume to master volume register value */
115 int tenthdb2master(int db
)
117 /* +6 to -73.5dB (or -81.0 dB) in 1.5dB steps == 53 (or 58) levels */
118 if (db
< VOLUME_MIN
) {
120 } else if (db
> VOLUME_MAX
) {
121 return (VOLUME_MAX
-VOLUME_MIN
)/15;
123 return((db
-VOLUME_MIN
)/15); /* VOLUME_MIN is negative */
127 int sound_val2phys(int setting
, int value
)
131 #if defined(HAVE_RECORDING)
132 case SOUND_LEFT_GAIN
:
133 case SOUND_RIGHT_GAIN
:
135 return (value
- 23) * 15;
144 * Initialise the PP I2C and I2S.
146 void audiohw_preinit(void)
148 /* read all reg values */
149 ascodec_readbytes(0x0, AS3514_NUM_AUDIO_REGS
, as3514_regs
);
153 as3514_write(AS3514_AUDIOSET1
, AUDIOSET1_DAC_on
| AUDIOSET1_DAC_GAIN_on
);
154 as3514_write(AS3514_AUDIOSET2
, AUDIOSET2_HPH_QUALITY_LOW_POWER
);
155 /* common ground on, delay playback unmuting when inserting headphones */
156 as3514_write(AS3514_AUDIOSET3
, AUDIOSET3_HPCM_on
| AUDIOSET3_HP_LONGSTART
);
158 as3514_write(AS3543_DAC_IF
, AS3543_DAC_INT_PLL
);
159 /* Select Line 2 for FM radio */
160 as3514_set(AS3514_LINE_IN1_R
, LINE_IN_R_LINE_SELECT
);
161 /* Output SUM of microphone/line/DAC */
162 as3514_write(AS3514_HPH_OUT_R
, HPH_OUT_R_HEADPHONES
| HPH_OUT_R_HP_OUT_SUM
);
167 /* Set ADC off, mixer on, DAC on, line out off, line in off, mic off */
168 /* Turn on SUM, DAC */
169 as3514_write(AS3514_AUDIOSET1
, AUDIOSET1_DAC_on
| AUDIOSET1_SUM_on
);
171 /* Set BIAS on, DITH off, AGC off, IBR_DAC max reduction, LSP_LP on,
172 IBR_LSP max reduction (50%), taken from c200v2 OF
174 as3514_write(AS3514_AUDIOSET2
, AUDIOSET2_IBR_LSP_50
| AUDIOSET2_LSP_LP
|
175 AUDIOSET2_IBR_DAC_50
| AUDIOSET2_AGC_off
| AUDIOSET2_DITH_off
);
177 /* Mute and disable speaker */
178 as3514_write(AS3514_LSP_OUT_R
, LSP_OUT_R_SP_OVC_TO_256MS
| 0x00);
179 as3514_write(AS3514_LSP_OUT_L
, LSP_OUT_L_SP_MUTE
| 0x00);
181 #ifdef PHILIPS_SA9200
182 /* LRCK 8-23kHz (there are audible clicks while reading the ADC otherwise) */
183 as3514_write(AS3514_PLLMODE
, PLLMODE_LRCK_8_23
);
186 as3514_write(AS3514_PLLMODE
, PLLMODE_LRCK_24_48
);
187 #endif /* PHILIPS_SA9200 */
189 /* Set headphone over-current to 0, Min volume */
190 as3514_write(AS3514_HPH_OUT_R
, HPH_OUT_R_HP_OVC_TO_0MS
| 0x00);
192 /* AMS Sansas based on the AS3525 need HPCM enabled, otherwise they output the
193 L-R signal on both L and R headphone outputs instead of normal stereo.
194 Turning it off saves a little power on targets that don't need it. */
195 #if (CONFIG_CPU == AS3525)
196 /* Set HPCM on, ZCU off, reduce bias current, settings taken from c200v2 OF
198 as3514_write(AS3514_AUDIOSET3
, AUDIOSET3_IBR_HPH
| AUDIOSET3_ZCU_off
);
200 /* TODO: check if AS3525 settings save power on e200v1 or as3525v2 */
201 /* Set HPCM off, ZCU on */
202 as3514_write(AS3514_AUDIOSET3
, AUDIOSET3_HPCM_off
);
203 #endif /* CONFIG_CPU == AS3525 */
206 as3514_set(AS3514_MIC2_L
, MIC2_L_M2_SUP_off
);
208 #endif /* HAVE_AS3543 */
210 /* registers identical on as3514/as3515 and as3543 */
213 as3514_set(AS3514_MIC1_L
, MIC1_L_M1_SUP_off
);
215 /* Headphone ON, MUTE, Min volume */
216 as3514_write(AS3514_HPH_OUT_L
, HPH_OUT_L_HP_ON
| HPH_OUT_L_HP_MUTE
| 0x00);
219 as3514_set(AS3514_DAC_L
, DAC_L_DAC_MUTE_off
);
222 static void audiohw_mute(bool mute
)
225 as3514_set(AS3514_HPH_OUT_L
, HPH_OUT_L_HP_MUTE
);
227 as3514_clear(AS3514_HPH_OUT_L
, HPH_OUT_L_HP_MUTE
);
231 void audiohw_postinit(void)
233 /* wait until outputs have stabilized */
237 ascodec_suppressor_on(false);
243 void audiohw_set_master_vol(int vol_l
, int vol_r
)
245 unsigned int hph_r
, hph_l
;
246 unsigned int mix_l
, mix_r
;
248 if (vol_l
== 0 && vol_r
== 0) {
253 /* We combine the mixer/DAC channel volume range with the headphone volume
254 range - keep first stage as loud as possible */
256 /*AS3543 mixer can go a little louder then the as3514, although
257 * it might be possible to go louder on the as3514 as well */
259 #if CONFIG_CPU == AS3525v2
260 #define MIXER_MAX_VOLUME 0x1b
261 #else /* lets leave the AS3514 alone until its better tested*/
262 #define MIXER_MAX_VOLUME 0x16
265 if (vol_r
<= MIXER_MAX_VOLUME
) {
269 mix_r
= MIXER_MAX_VOLUME
;
270 hph_r
= vol_r
- MIXER_MAX_VOLUME
;
273 if (vol_l
<= MIXER_MAX_VOLUME
) {
277 mix_l
= MIXER_MAX_VOLUME
;
278 hph_l
= vol_l
- MIXER_MAX_VOLUME
;
282 as3514_write_masked(AS3514_DAC_R
, mix_r
, AS3514_VOL_MASK
);
283 as3514_write_masked(AS3514_DAC_L
, mix_l
, AS3514_VOL_MASK
);
284 #if defined(HAVE_RECORDING) || defined(HAVE_FMRADIO_IN)
285 as3514_write_masked(AS3514_LINE_IN_R
, mix_r
, AS3514_VOL_MASK
);
286 as3514_write_masked(AS3514_LINE_IN_L
, mix_l
, AS3514_VOL_MASK
);
288 as3514_write_masked(AS3514_HPH_OUT_R
, hph_r
, AS3514_VOL_MASK
);
289 as3514_write_masked(AS3514_HPH_OUT_L
, hph_l
, AS3514_VOL_MASK
);
295 void audiohw_set_lineout_vol(int vol_l
, int vol_r
)
298 /* line out volume is set in the same registers */
299 audiohw_set_master_vol(vol_l
, vol_r
);
301 as3514_write_masked(AS3514_LINE_OUT_R
, vol_r
, AS3514_VOL_MASK
);
302 as3514_write_masked(AS3514_LINE_OUT_L
, vol_l
, AS3514_VOL_MASK
);
307 /* Nice shutdown of AS3514 audio codec */
308 void audiohw_close(void)
310 /* mute headphones */
314 ascodec_suppressor_on(true);
318 as3514_clear(AS3514_AUDIOSET3
, AUDIOSET3_HPCM_off
);
320 /* turn off everything */
321 as3514_clear(AS3514_HPH_OUT_L
, HPH_OUT_L_HP_ON
);
322 as3514_write(AS3514_AUDIOSET1
, 0x0);
324 /* Allow caps to discharge */
328 void audiohw_set_frequency(int fsel
)
333 #if defined(HAVE_RECORDING)
334 void audiohw_enable_recording(bool source_mic
)
337 /* ADCmux = Stereo Microphone */
338 as3514_write_masked(AS3514_ADC_R
, ADC_R_ADCMUX_ST_MIC
,
341 /* MIC1_on, others off */
342 as3514_write_masked(AS3514_AUDIOSET1
, AUDIOSET1_MIC1_on
,
343 AUDIOSET1_INPUT_MASK
);
345 #if CONFIG_CPU == AS3525v2
346 /* XXX: why is the microphone supply not needed on other models ?? */
348 as3514_clear(AS3514_MIC1_L
, MIC1_L_M1_SUP_off
);
352 as3514_clear(AS3514_MIC1_R
, MIC1_R_M1_AGC_off
);
354 /* ADCmux = Line_IN1 or Line_IN2 */
355 as3514_write_masked(AS3514_ADC_R
, ADC_R_ADCMUX_LINE_IN
,
358 /* LIN1_or LIN2 on, rest off */
359 as3514_write_masked(AS3514_AUDIOSET1
, AUDIOSET1_LIN_on
,
360 AUDIOSET1_INPUT_MASK
);
362 #if CONFIG_CPU == AS3525v2
364 as3514_set(AS3514_MIC1_L
, MIC1_L_M1_SUP_off
);
369 as3514_set(AS3514_ADC_L
, ADC_L_ADC_MUTE_off
);
371 as3514_set(AS3514_AUDIOSET1
, AUDIOSET1_ADC_on
);
374 void audiohw_disable_recording(void)
377 as3514_clear(AS3514_ADC_L
, ADC_L_ADC_MUTE_off
);
379 /* ADC_off, all input sources off */
380 as3514_clear(AS3514_AUDIOSET1
, AUDIOSET1_ADC_on
| AUDIOSET1_INPUT_MASK
);
384 * Set recording volume
386 * Line in : 0 .. 23 .. 31 =>
387 Volume -34.5 .. +00.0 .. +12.0 dB
388 * Mic (left): 0 .. 23 .. 39 =>
389 * Volume -34.5 .. +00.0 .. +24.0 dB
392 void audiohw_set_recvol(int left
, int right
, int type
)
398 /* Combine MIC gains seamlessly with ADC levels */
402 /* M1_Gain = +40db, ADR_Vol = +7.5dB .. +12.0 dB =>
403 +19.5 dB .. +24.0 dB */
405 mic1_r
= MIC1_R_M1_GAIN_40DB
;
406 } else if (left
>= 32) {
407 /* M1_Gain = +34db, ADR_Vol = +7.5dB .. +12.0 dB =>
408 +13.5 dB .. +18.0 dB */
410 mic1_r
= MIC1_R_M1_GAIN_34DB
;
412 /* M1_Gain = +28db, ADR_Vol = -34.5dB .. +12.0 dB =>
413 -34.5 dB .. +12.0 dB */
414 mic1_r
= MIC1_R_M1_GAIN_28DB
;
419 as3514_write_masked(AS3514_MIC1_R
, mic1_r
, MIC1_R_M1_GAIN
);
422 case AUDIO_GAIN_LINEIN
:
428 as3514_write_masked(AS3514_ADC_R
, right
, AS3514_VOL_MASK
);
429 as3514_write_masked(AS3514_ADC_L
, left
, AS3514_VOL_MASK
);
431 #endif /* HAVE_RECORDING */
433 #if defined(HAVE_RECORDING) || defined(HAVE_FMRADIO_IN)
435 * Enable line in analog monitoring
438 void audiohw_set_monitor(bool enable
)
441 /* select either LIN1 or LIN2 */
442 as3514_write_masked(AS3514_AUDIOSET1
, AUDIOSET1_LIN_on
,
443 AUDIOSET1_LIN1_on
| AUDIOSET1_LIN2_on
);
444 as3514_set(AS3514_LINE_IN_R
, LINE_IN1_R_LI1R_MUTE_off
);
445 as3514_set(AS3514_LINE_IN_L
, LINE_IN1_L_LI1L_MUTE_off
);
448 /* turn off both LIN1 and LIN2 (if present) */
449 as3514_clear(AS3514_LINE_IN1_R
, LINE_IN1_R_LI1R_MUTE_off
);
450 as3514_clear(AS3514_LINE_IN1_L
, LINE_IN1_L_LI1L_MUTE_off
);
452 as3514_clear(AS3514_LINE_IN2_R
, LINE_IN2_R_LI2R_MUTE_off
);
453 as3514_clear(AS3514_LINE_IN2_L
, LINE_IN2_L_LI2L_MUTE_off
);
455 as3514_clear(AS3514_AUDIOSET1
, AUDIOSET1_LIN1_on
| AUDIOSET1_LIN2_on
);
458 #endif /* HAVE_RECORDING || HAVE_FMRADIO_IN */