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-rw-r--r--firmware/target/arm/imx233/audioin-imx233.c33
-rw-r--r--firmware/target/arm/imx233/audioin-imx233.h4
-rw-r--r--firmware/target/arm/imx233/audioout-imx233.c179
-rw-r--r--firmware/target/arm/imx233/audioout-imx233.h95
4 files changed, 311 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/audioin-imx233.c b/firmware/target/arm/imx233/audioin-imx233.c
new file mode 100644
index 0000000000..4c2ee657f9
--- /dev/null
+++ b/firmware/target/arm/imx233/audioin-imx233.c
@@ -0,0 +1,33 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2011 by Amaury Pouly
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "audioout-imx233.h"
22
23void imx233_audioin_preinit(void)
24{
25}
26
27void imx233_audioin_postinit(void)
28{
29}
30
31void imx233_audioin_close(void)
32{
33}
diff --git a/firmware/target/arm/imx233/audioin-imx233.h b/firmware/target/arm/imx233/audioin-imx233.h
index d4468f8d4a..c13f7cef56 100644
--- a/firmware/target/arm/imx233/audioin-imx233.h
+++ b/firmware/target/arm/imx233/audioin-imx233.h
@@ -24,4 +24,8 @@
24#include "config.h" 24#include "config.h"
25#include "cpu.h" 25#include "cpu.h"
26 26
27void imx233_audioin_preinit(void);
28void imx233_audioin_postinit(void);
29void imx233_audioin_close(void);
30
27#endif /* __audioin_imx233__ */ 31#endif /* __audioin_imx233__ */
diff --git a/firmware/target/arm/imx233/audioout-imx233.c b/firmware/target/arm/imx233/audioout-imx233.c
new file mode 100644
index 0000000000..0a48a909e8
--- /dev/null
+++ b/firmware/target/arm/imx233/audioout-imx233.c
@@ -0,0 +1,179 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2011 by Amaury Pouly
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "audioout-imx233.h"
22#include "clkctrl-imx233.h"
23#include "rtc-imx233.h"
24#include "pcm_sampr.h"
25
26void imx233_audioout_preinit(void)
27{
28 /* Enable AUDIOOUT block */
29 imx233_reset_block(&HW_AUDIOOUT_CTRL);
30 /* Enable digital filter clock */
31 imx233_enable_xtal_clock(XTAL_FILT, true);
32 /* Enable DAC */
33 __REG_CLR(HW_AUDIOOUT_ANACLKCTRL) = HW_AUDIOOUT_ANACLKCTRL__CLKGATE;
34 /* Set capless mode */
35 __REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__CAPLESS;
36 /* Set word-length to 16-bit */
37 __REG_SET(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__WORD_LENGTH;
38 /* Power up DAC */
39 __REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__DAC;
40 /* Hold HP to ground to avoid pop, then release and power up HP */
41 __REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
42 __REG_SET(HW_RTC_PERSISTENT0) = HW_RTC_PERSISTENT0__SPARE__RELEASE_GND;
43 __REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__HEADPHONE;
44 /* Set HP mode to AB */
45 __REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_CLASSAB;
46 /* Stop holding to ground */
47 __REG_CLR(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
48 /* Set dmawait count to 31 (see errata, workaround random stop) */
49 __REG_CLR(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BM;
50 __REG_SET(HW_AUDIOOUT_CTRL) = 31 << HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BP;
51}
52
53void imx233_audioout_postinit(void)
54{
55 /* start converting audio */
56 __REG_SET(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__RUN;
57}
58
59void imx233_audioout_close(void)
60{
61 /* Switch to class A */
62 __REG_CLR(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_CLASSAB;
63 /* Hold HP to ground */
64 __REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
65 /* Mute HP and power down */
66 __REG_SET(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__MUTE;
67 /* Power down HP */
68 __REG_SET(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__HEADPHONE;
69 /* Mute DAC */
70 __REG_SET(HW_AUDIOOUT_DACVOLUME) = HW_AUDIOOUT_DACVOLUME__MUTE_LEFT
71 | HW_AUDIOOUT_DACVOLUME__MUTE_RIGHT;
72 /* Power down DAC */
73 __REG_SET(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__DAC;
74 /* Gate off DAC */
75 __REG_SET(HW_AUDIOOUT_ANACLKCTRL) = HW_AUDIOOUT_ANACLKCTRL__CLKGATE;
76 /* Disable digital filter clock */
77 imx233_enable_xtal_clock(XTAL_FILT, false);
78 /* will also gate off the module */
79 __REG_CLR(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__RUN;
80}
81/* volume in half dB */
82void imx233_audioout_set_dac_vol(int vol_l, int vol_r)
83{
84 /* minimum is -100dB and max is 0dB */
85 vol_l = MAX(-200, MIN(vol_l, 0));
86 vol_r = MAX(-200, MIN(vol_r, 0));
87 /* unmute, enable zero cross and set volume.
88 * 0xff is 0dB */
89 HW_AUDIOOUT_DACVOLUME =
90 (0xff + vol_l) << HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BP |
91 (0xff + vol_r) << HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BP |
92 HW_AUDIOOUT_DACVOLUME__EN_ZCD;
93}
94
95void imx233_audioout_set_hp_vol(int vol_l, int vol_r)
96{
97 uint32_t select = (HW_AUDIOOUT_HPVOL & HW_AUDIOOUT_HPVOL__SELECT);
98 /* minimum is -57.5dB and max is 6dB in DAC mode
99 * and -51.5dB / 12dB in Line1 mode */
100 int min = select ? -103 : -115;
101 int max = select ? 24 : 12;
102
103 vol_l = MAX(min, MIN(vol_l, max));
104 vol_r = MAX(min, MIN(vol_r, max));
105 /* unmute, enable zero cross and set volume. Keep select value. */
106 HW_AUDIOOUT_HPVOL =
107 (max - vol_l) << HW_AUDIOOUT_HPVOL__VOL_LEFT_BP |
108 (max - vol_r) << HW_AUDIOOUT_HPVOL__VOL_RIGHT_BP |
109 select |
110 HW_AUDIOOUT_HPVOL__EN_MSTR_ZCD;
111}
112
113void imx233_audioout_set_freq(int fsel)
114{
115 static struct
116 {
117 int base_mult;
118 int src_hold;
119 int src_int;
120 int src_frac;
121 }dacssr[HW_NUM_FREQ] =
122 {
123 HW_HAVE_8_([HW_FREQ_8] = { 0x1, 0x3, 0x17, 0xe00 } ,)
124 HW_HAVE_11_([HW_FREQ_11] = { 0x1, 0x3, 0x11, 0x37 } ,)
125 HW_HAVE_12_([HW_FREQ_12] = { 0x1, 0x3, 0xf, 0x13ff },)
126 HW_HAVE_16_([HW_FREQ_16] = { 0x1, 0x1, 0x17, 0xe00},)
127 HW_HAVE_22_([HW_FREQ_22] = { 0x1, 0x1, 0x11, 0x37 },)
128 HW_HAVE_24_([HW_FREQ_24] = { 0x1, 0x1, 0xf, 0x13ff },)
129 HW_HAVE_32_([HW_FREQ_32] = { 0x1, 0x0, 0x17, 0xe00},)
130 HW_HAVE_44_([HW_FREQ_44] = { 0x1, 0x0, 0x11, 0x37 },)
131 HW_HAVE_48_([HW_FREQ_48] = { 0x1, 0x0, 0xf, 0x13ff },)
132 HW_HAVE_64_([HW_FREQ_64] = { 0x2, 0x0, 0x17, 0xe00},)
133 HW_HAVE_88_([HW_FREQ_88] = { 0x2, 0x0, 0x11, 0x37 },)
134 HW_HAVE_96_([HW_FREQ_96] = { 0x2, 0x0, 0xf, 0x13ff },)
135 };
136
137 HW_AUDIOOUT_DACSRR =
138 dacssr[fsel].src_frac << HW_AUDIOOUT_DACSRR__SRC_FRAC_BP |
139 dacssr[fsel].src_int << HW_AUDIOOUT_DACSRR__SRC_INT_BP |
140 dacssr[fsel].src_hold << HW_AUDIOOUT_DACSRR__SRC_HOLD_BP |
141 dacssr[fsel].base_mult << HW_AUDIOOUT_DACSRR__BASEMULT_BP;
142
143 #if 0
144 /* Select base_mult and src_hold depending on the audio range:
145 * 0 < f <= 12000 --> base_mult = 1, src_hold = 3 (div by 4)
146 * 12000 < f <= 24000 --> base_mult = 1, src_hold = 1 (div by 2)
147 * 24000 < f <= 48000 --> base_mult = 1, src_hold = 0 (div by 1)
148 * 48000 < f <= 96000 --> base_mult = 2, src_hold = 0 (mul by 2)
149 * 96000 < f <= ..... --> base_mult = 4, src_hold = 0 (mul by 4) */
150 int base_mult = 1;
151 int src_hold = 0;
152 if(f > 96000)
153 base_mult = 4;
154 else if(f > 48000)
155 base_mult = 2;
156 else if(f <= 12000)
157 src_hold = 3;
158 else if(f <= 24000)
159 src_hold = 1;
160 /* compute the divisor (a tricky to keep to do it with 32-bit words only) */
161 int src_int = (750000 * base_mult) / (f * (src_hold + 1));
162 int src_frac = ((750000 * base_mult - src_int * f * (src_hold + 1)) << 13) / (f * (src_hold + 1));
163
164 HW_AUDIOOUT_DACSRR =
165 src_frac << HW_AUDIOOUT_DACSRR__SRC_FRAC_BP |
166 src_int << HW_AUDIOOUT_DACSRR__SRC_INT_BP |
167 src_hold << HW_AUDIOOUT_DACSRR__SRC_HOLD_BP |
168 base_mult << HW_AUDIOOUT_DACSRR__BASEMULT_BP;
169 #endif
170}
171
172/* select between DAC and Line1 */
173void imx233_audiout_select_hp_input(bool line1)
174{
175 if(line1)
176 __REG_SET(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__SELECT;
177 else
178 __REG_CLR(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__SELECT;
179}
diff --git a/firmware/target/arm/imx233/audioout-imx233.h b/firmware/target/arm/imx233/audioout-imx233.h
index 913e633de0..cd997e7d31 100644
--- a/firmware/target/arm/imx233/audioout-imx233.h
+++ b/firmware/target/arm/imx233/audioout-imx233.h
@@ -23,5 +23,100 @@
23 23
24#include "config.h" 24#include "config.h"
25#include "cpu.h" 25#include "cpu.h"
26#include "system.h"
27
28#define HW_AUDIOOUT_BASE 0x80048000
29
30#define HW_AUDIOOUT_CTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x0))
31#define HW_AUDIOOUT_CTRL__RUN (1 << 0)
32#define HW_AUDIOOUT_CTRL__FIFO_ERROR_IRQ_EN (1 << 1)
33#define HW_AUDIOOUT_CTRL__FIFO_OVERFLOW_IRQ (1 << 2)
34#define HW_AUDIOOUT_CTRL__FIFO_UNDERFLOW_IRQ (1 << 3)
35#define HW_AUDIOOUT_CTRL__WORD_LENGTH (1 << 6)
36#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_BP 8
37#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_BM (3 << 8)
38#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_OFF (0 << 8)
39#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_3 (1 << 8)
40#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_4P5 (2 << 8)
41#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_6 (3 << 8)
42#define HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BP 16
43#define HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BM (0x1f << 16)
44
45#define HW_AUDIOOUT_DACSRR (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x20))
46#define HW_AUDIOOUT_DACSRR__SRC_FRAC_BP 0
47#define HW_AUDIOOUT_DACSRR__SRC_FRAC_BM (0x1ff << 0)
48#define HW_AUDIOOUT_DACSRR__SRC_INT_BP 16
49#define HW_AUDIOOUT_DACSRR__SRC_INT_BM (0x1f << 16)
50#define HW_AUDIOOUT_DACSRR__SRC_HOLD_BP 24
51#define HW_AUDIOOUT_DACSRR__SRC_HOLD_BM (0x7 << 24)
52#define HW_AUDIOOUT_DACSRR__BASEMULT_BP 28
53#define HW_AUDIOOUT_DACSRR__BASEMULT_BM (0x7 << 28)
54#define HW_AUDIOOUT_DACSRR__OSR (1 << 31)
55
56#define HW_AUDIOOUT_DACVOLUME (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x30))
57#define HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BP 0
58#define HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BM 0xff
59#define HW_AUDIOOUT_DACVOLUME__MUTE_RIGHT (1 << 8)
60#define HW_AUDIOOUT_DACVOLUME__VOLUME_UPDATE_RIGHT (1 << 12)
61#define HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BP 16
62#define HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BM (0xff << 16)
63#define HW_AUDIOOUT_DACVOLUME__MUTE_LEFT (1 << 24)
64#define HW_AUDIOOUT_DACVOLUME__EN_ZCD (1 << 25)
65#define HW_AUDIOOUT_DACVOLUME__VOLUME_UPDATE_LEFT (1 << 28)
66
67#define HW_AUDIOOUT_DACDEBUG (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x40))
68#define HW_AUDIOOUT_DACDEBUG__FIFO_STATUS 1
69
70
71#define HW_AUDIOOUT_HPVOL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x50))
72#define HW_AUDIOOUT_HPVOL__VOL_RIGHT_BP 0
73#define HW_AUDIOOUT_HPVOL__VOL_RIGHT_BM (0x7f << 0)
74#define HW_AUDIOOUT_HPVOL__VOL_LEFT_BP 8
75#define HW_AUDIOOUT_HPVOL__VOL_LEFT_BM (0x7f << 8)
76#define HW_AUDIOOUT_HPVOL__SELECT (1 << 16)
77#define HW_AUDIOOUT_HPVOL__MUTE (1 << 24)
78#define HW_AUDIOOUT_HPVOL__EN_MSTR_ZCD (1 << 25)
79
80#define HW_AUDIOOUT_PWRDN (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x70))
81#define HW_AUDIOOUT_PWRDN__HEADPHONE (1 << 0)
82#define HW_AUDIOOUT_PWRDN__CAPLESS (1 << 4)
83#define HW_AUDIOOUT_PWRDN__ADC (1 << 8)
84#define HW_AUDIOOUT_PWRDN__DAC (1 << 12)
85#define HW_AUDIOOUT_PWRDN__RIGHT_ADC (1 << 16)
86#define HW_AUDIOOUT_PWRDN__SPEAKER (1 << 24)
87
88#define HW_AUDIOOUT_REFCTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x80))
89#define HW_AUDIOOUT_REFCTRL__LOW_PWR (1 << 19)
90
91#define HW_AUDIOOUT_ANACTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x90))
92#define HW_AUDIOOUT_ANACTRL__HP_CLASSAB (1 << 4)
93#define HW_AUDIOOUT_ANACTRL__HP_HOLD_GND (1 << 5)
94#define HW_AUDIOOUT_ANACTRL__SHORTMODE_LR_BP 17
95#define HW_AUDIOOUT_ANACTRL__SHORTMODE_LR_BM (3 << 17)
96#define HW_AUDIOOUT_ANACTRL__SHORTMODE_CM_BP 20
97#define HW_AUDIOOUT_ANACTRL__SHORTMODE_CM_BM (3 << 20)
98#define HW_AUDIOOUT_ANACTRL__SHORT_LR_STS (1 << 24)
99#define HW_AUDIOOUT_ANACTRL__SHORT_CM_STS (1 << 28)
100
101#define HW_AUDIOOUT_ANACLKCTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0xe0))
102#define HW_AUDIOOUT_ANACLKCTRL__DACDIV_BP 0
103#define HW_AUDIOOUT_ANACLKCTRL__DACDIV_BM (7 << 0)
104#define HW_AUDIOOUT_ANACLKCTRL__CLKGATE (1 << 31)
105
106#define HW_AUDIOOUT_DATA (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0xf0))
107
108#define HW_AUDIOOUT_VERSION (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x200))
109
110
111void imx233_audioout_preinit(void);
112void imx233_audioout_postinit(void);
113void imx233_audioout_close(void);
114/* volume in half dB */
115void imx233_audioout_set_dac_vol(int vol_l, int vol_r);
116void imx233_audioout_set_hp_vol(int vol_l, int vol_r);
117/* frequency index, NOT the frequency itself */
118void imx233_audioout_set_freq(int fsel);
119/* select between DAC and Line1 */
120void imx233_audiout_select_hp_input(bool line1);
26 121
27#endif /* __audioout_imx233__ */ 122#endif /* __audioout_imx233__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-19 22:56:32 +0000