1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: wm8975.c 28572 2010-11-13 11:38:38Z theseven $
*
* Driver for Cirrus Logic CS42L55 audio codec
*
* Copyright (c) 2010 Michael Sparmann
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "logf.h"
#include "system.h"
#include "kernel.h"
#include "string.h"
#include "audio.h"
#include "sound.h"
#include "audiohw.h"
#include "cscodec.h"
#include "cs42l55.h"
static int bass, treble;
/* convert tenth of dB volume (-600..120) to volume register value */
static int vol_tenthdb2hw(int db)
{
/* -60dB to +12dB in 1dB steps */
/* 0001100 == +12dB (0xc) */
/* 0000000 == 0dB (0x0) */
/* 1000100 == -60dB (0x44, this is actually -58dB) */
if (db <= -600) return HPACTL_HPAMUTE;
return (db / 10) & HPACTL_HPAVOL_MASK;
}
static void cscodec_setbits(int reg, unsigned char off, unsigned char on)
{
unsigned char data = (cscodec_read(reg) & ~off) | on;
cscodec_write(reg, data);
}
static void audiohw_mute(bool mute)
{
if (mute) cscodec_setbits(PLAYCTL, 0, PLAYCTL_MSTAMUTE | PLAYCTL_MSTBMUTE);
else cscodec_setbits(PLAYCTL, PLAYCTL_MSTAMUTE | PLAYCTL_MSTBMUTE, 0);
}
void audiohw_preinit(void)
{
cscodec_power(true);
cscodec_clock(true);
cscodec_reset(true);
sleep(HZ / 100);
cscodec_reset(false);
bass = 0;
treble = 0;
/* Ask Cirrus or maybe Apple what the hell this means */
cscodec_write(HIDDENCTL, HIDDENCTL_UNLOCK);
cscodec_write(HIDDEN2E, HIDDEN2E_DEFAULT);
cscodec_write(HIDDEN32, HIDDEN32_DEFAULT);
cscodec_write(HIDDEN33, HIDDEN33_DEFAULT);
cscodec_write(HIDDEN34, HIDDEN34_DEFAULT);
cscodec_write(HIDDEN35, HIDDEN35_DEFAULT);
cscodec_write(HIDDEN36, HIDDEN36_DEFAULT);
cscodec_write(HIDDEN37, HIDDEN37_DEFAULT);
cscodec_write(HIDDEN3A, HIDDEN3A_DEFAULT);
cscodec_write(HIDDEN3C, HIDDEN3C_DEFAULT);
cscodec_write(HIDDEN3D, HIDDEN3D_DEFAULT);
cscodec_write(HIDDEN3E, HIDDEN3E_DEFAULT);
cscodec_write(HIDDEN3F, HIDDEN3F_DEFAULT);
cscodec_write(HIDDENCTL, HIDDENCTL_LOCK);
cscodec_write(PWRCTL2, PWRCTL2_PDN_LINA_ALWAYS | PWRCTL2_PDN_LINB_ALWAYS
| PWRCTL2_PDN_HPA_NEVER | PWRCTL2_PDN_HPB_NEVER);
cscodec_write(CLKCTL1, CLKCTL1_MASTER | CLKCTL1_SCLKMCLK_BEFORE
| CLKCTL1_MCLKDIV2);
cscodec_write(CLKCTL2, CLKCTL2_44100HZ);
cscodec_write(MISCCTL, MISCCTL_UNDOC4 | MISCCTL_ANLGZC | MISCCTL_DIGSFT);
cscodec_write(PWRCTL1, PWRCTL1_PDN_CHRG | PWRCTL1_PDN_ADCA
| PWRCTL1_PDN_ADCB | PWRCTL1_PDN_CODEC);
cscodec_write(PLAYCTL, PLAYCTL_PDN_DSP
| PLAYCTL_MSTAMUTE | PLAYCTL_MSTBMUTE);
cscodec_write(PGAACTL, 0);
cscodec_write(PGABCTL, 0);
cscodec_write(HPACTL, HPACTL_HPAMUTE);
cscodec_write(HPBCTL, HPBCTL_HPBMUTE);
cscodec_write(LINEACTL, LINEACTL_LINEAMUTE);
cscodec_write(LINEBCTL, LINEBCTL_LINEBMUTE);
cscodec_write(PWRCTL1, PWRCTL1_PDN_CHRG | PWRCTL1_PDN_ADCA
| PWRCTL1_PDN_ADCB);
}
void audiohw_postinit(void)
{
cscodec_write(HPACTL, 0);
cscodec_write(HPBCTL, 0);
cscodec_write(LINEACTL, 0);
cscodec_write(LINEBCTL, 0);
cscodec_write(CLSHCTL, CLSHCTL_ADPTPWR_SIGNAL);
audiohw_mute(false);
}
void audiohw_set_volume(int vol_l, int vol_r)
{
vol_l = vol_tenthdb2hw(vol_l);
vol_r = vol_tenthdb2hw(vol_r);
cscodec_setbits(HPACTL, HPACTL_HPAVOL_MASK | HPACTL_HPAMUTE,
vol_l << HPACTL_HPAVOL_SHIFT);
cscodec_setbits(HPBCTL, HPBCTL_HPBVOL_MASK | HPBCTL_HPBMUTE,
vol_r << HPBCTL_HPBVOL_SHIFT);
}
void audiohw_set_lineout_volume(int vol_l, int vol_r)
{
vol_l = vol_tenthdb2hw(vol_l);
vol_r = vol_tenthdb2hw(vol_r);
cscodec_setbits(LINEACTL, LINEACTL_LINEAVOL_MASK | LINEACTL_LINEAMUTE,
vol_l << LINEACTL_LINEAVOL_SHIFT);
cscodec_setbits(LINEBCTL, LINEBCTL_LINEBVOL_MASK | LINEBCTL_LINEBMUTE,
vol_r << LINEBCTL_LINEBVOL_SHIFT);
}
void audiohw_enable_lineout(bool enable)
{
if (enable)
cscodec_setbits(PWRCTL2, PWRCTL2_PDN_LINA_MASK | PWRCTL2_PDN_LINB_MASK,
PWRCTL2_PDN_LINA_NEVER | PWRCTL2_PDN_LINB_NEVER);
else
cscodec_setbits(PWRCTL2, PWRCTL2_PDN_LINA_MASK | PWRCTL2_PDN_LINB_MASK,
PWRCTL2_PDN_LINA_ALWAYS | PWRCTL2_PDN_LINB_ALWAYS);
}
static void handle_dsp_power(void)
{
if (bass || treble)
{
cscodec_setbits(PLAYCTL, PLAYCTL_PDN_DSP, 0);
cscodec_setbits(BTCTL, 0, BTCTL_TCEN);
}
else
{
cscodec_setbits(BTCTL, BTCTL_TCEN, 0);
cscodec_setbits(PLAYCTL, 0, PLAYCTL_PDN_DSP);
}
}
void audiohw_set_bass(int value)
{
bass = value;
handle_dsp_power();
if (value >= -105 && value <= 120)
cscodec_setbits(TONECTL, TONECTL_BASS_MASK,
(8 - value / 15) << TONECTL_BASS_SHIFT);
}
void audiohw_set_treble(int value)
{
treble = value;
handle_dsp_power();
if (value >= -105 && value <= 120)
cscodec_setbits(TONECTL, TONECTL_TREB_MASK,
(8 - value / 15) << TONECTL_TREB_SHIFT);
}
void audiohw_set_bass_cutoff(int value)
{
cscodec_setbits(BTCTL, BTCTL_BASSCF_MASK,
(value - 1) << BTCTL_BASSCF_SHIFT);
}
void audiohw_set_treble_cutoff(int value)
{
cscodec_setbits(BTCTL, BTCTL_TREBCF_MASK,
(value - 1) << BTCTL_TREBCF_SHIFT);
}
void audiohw_set_prescaler(int value)
{
cscodec_setbits(MSTAVOL, MSTAVOL_VOLUME_MASK,
(-value / 5) << MSTAVOL_VOLUME_SHIFT);
cscodec_setbits(MSTBVOL, MSTBVOL_VOLUME_MASK,
(-value / 5) << MSTBVOL_VOLUME_SHIFT);
}
/* Nice shutdown of CS42L55 codec */
void audiohw_close(void)
{
audiohw_mute(true);
cscodec_write(HPACTL, HPACTL_HPAMUTE);
cscodec_write(HPBCTL, HPBCTL_HPBMUTE);
cscodec_write(LINEACTL, LINEACTL_LINEAMUTE);
cscodec_write(LINEBCTL, LINEBCTL_LINEBMUTE);
cscodec_write(PWRCTL1, PWRCTL1_PDN_CHRG | PWRCTL1_PDN_ADCA
| PWRCTL1_PDN_ADCB | PWRCTL1_PDN_CODEC);
cscodec_reset(true);
cscodec_clock(false);
cscodec_power(false);
}
/* Note: Disable output before calling this function */
void audiohw_set_frequency(int fsel)
{
if (fsel == HW_FREQ_8) cscodec_write(CLKCTL2, CLKCTL2_8000HZ);
else if (fsel == HW_FREQ_11) cscodec_write(CLKCTL2, CLKCTL2_11025HZ);
else if (fsel == HW_FREQ_12) cscodec_write(CLKCTL2, CLKCTL2_12000HZ);
else if (fsel == HW_FREQ_16) cscodec_write(CLKCTL2, CLKCTL2_16000HZ);
else if (fsel == HW_FREQ_22) cscodec_write(CLKCTL2, CLKCTL2_22050HZ);
else if (fsel == HW_FREQ_24) cscodec_write(CLKCTL2, CLKCTL2_24000HZ);
else if (fsel == HW_FREQ_32) cscodec_write(CLKCTL2, CLKCTL2_32000HZ);
else if (fsel == HW_FREQ_44) cscodec_write(CLKCTL2, CLKCTL2_44100HZ);
else if (fsel == HW_FREQ_48) cscodec_write(CLKCTL2, CLKCTL2_48000HZ);
}
#ifdef HAVE_RECORDING
//TODO: Implement
#endif /* HAVE_RECORDING */
|
