diff options
Diffstat (limited to 'firmware/target/arm/wmcodec-pp.c')
-rw-r--r-- | firmware/target/arm/wmcodec-pp.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/firmware/target/arm/wmcodec-pp.c b/firmware/target/arm/wmcodec-pp.c new file mode 100644 index 0000000000..e9626220e7 --- /dev/null +++ b/firmware/target/arm/wmcodec-pp.c | |||
@@ -0,0 +1,156 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Portalplayer specific code for Wolfson audio codecs | ||
11 | * | ||
12 | * Based on code from the ipodlinux project - http://ipodlinux.org/ | ||
13 | * Adapted for Rockbox in December 2005 | ||
14 | * | ||
15 | * Original file: linux/arch/armnommu/mach-ipod/audio.c | ||
16 | * | ||
17 | * Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org) | ||
18 | * | ||
19 | * All files in this archive are subject to the GNU General Public License. | ||
20 | * See the file COPYING in the source tree root for full license agreement. | ||
21 | * | ||
22 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
23 | * KIND, either express or implied. | ||
24 | * | ||
25 | ****************************************************************************/ | ||
26 | #include "lcd.h" | ||
27 | #include "cpu.h" | ||
28 | #include "kernel.h" | ||
29 | #include "thread.h" | ||
30 | #include "power.h" | ||
31 | #include "debug.h" | ||
32 | #include "system.h" | ||
33 | #include "sprintf.h" | ||
34 | #include "button.h" | ||
35 | #include "string.h" | ||
36 | #include "file.h" | ||
37 | #include "buffer.h" | ||
38 | #include "audio.h" | ||
39 | |||
40 | #if CONFIG_CPU == PP5020 | ||
41 | #include "i2c-pp5020.h" | ||
42 | #elif CONFIG_CPU == PP5002 | ||
43 | #include "i2c-pp5002.h" | ||
44 | #endif | ||
45 | |||
46 | /* | ||
47 | * Reset the I2S BIT.FORMAT I2S, 16bit, FIFO.FORMAT 32bit | ||
48 | */ | ||
49 | void i2s_reset(void) | ||
50 | { | ||
51 | #if CONFIG_CPU == PP5020 | ||
52 | /* I2S soft reset */ | ||
53 | outl(inl(0x70002800) | 0x80000000, 0x70002800); | ||
54 | outl(inl(0x70002800) & ~0x80000000, 0x70002800); | ||
55 | |||
56 | /* BIT.FORMAT [11:10] = I2S (default) */ | ||
57 | outl(inl(0x70002800) & ~0xc00, 0x70002800); | ||
58 | /* BIT.SIZE [9:8] = 16bit (default) */ | ||
59 | outl(inl(0x70002800) & ~0x300, 0x70002800); | ||
60 | |||
61 | /* FIFO.FORMAT [6:4] = 32 bit LSB */ | ||
62 | /* since BIT.SIZ < FIFO.FORMAT low 16 bits will be 0 */ | ||
63 | outl(inl(0x70002800) | 0x30, 0x70002800); | ||
64 | |||
65 | /* RX_ATN_LVL=1 == when 12 slots full */ | ||
66 | /* TX_ATN_LVL=1 == when 12 slots empty */ | ||
67 | outl(inl(0x7000280c) | 0x33, 0x7000280c); | ||
68 | |||
69 | /* Rx.CLR = 1, TX.CLR = 1 */ | ||
70 | outl(inl(0x7000280c) | 0x1100, 0x7000280c); | ||
71 | #elif CONFIG_CPU == PP5002 | ||
72 | /* I2S device reset */ | ||
73 | outl(inl(0xcf005030) | 0x80, 0xcf005030); | ||
74 | outl(inl(0xcf005030) & ~0x80, 0xcf005030); | ||
75 | |||
76 | /* I2S controller enable */ | ||
77 | outl(inl(0xc0002500) | 0x1, 0xc0002500); | ||
78 | |||
79 | /* BIT.FORMAT [11:10] = I2S (default) */ | ||
80 | /* BIT.SIZE [9:8] = 24bit */ | ||
81 | /* FIFO.FORMAT = 24 bit LSB */ | ||
82 | |||
83 | /* reset DAC and ADC fifo */ | ||
84 | outl(inl(0xc000251c) | 0x30000, 0xc000251c); | ||
85 | #endif | ||
86 | } | ||
87 | |||
88 | /* | ||
89 | * Initialise the WM8975 for playback via headphone and line out. | ||
90 | * Note, I'm using the WM8750 datasheet as its apparently close. | ||
91 | */ | ||
92 | int wmcodec_init(void) { | ||
93 | /* reset I2C */ | ||
94 | i2c_init(); | ||
95 | |||
96 | #if CONFIG_CPU == PP5020 | ||
97 | /* normal outputs for CDI and I2S pin groups */ | ||
98 | outl(inl(0x70000020) & ~0x300, 0x70000020); | ||
99 | |||
100 | /*mini2?*/ | ||
101 | outl(inl(0x70000010) & ~0x3000000, 0x70000010); | ||
102 | /*mini2?*/ | ||
103 | |||
104 | /* device reset */ | ||
105 | outl(inl(0x60006004) | 0x800, 0x60006004); | ||
106 | outl(inl(0x60006004) & ~0x800, 0x60006004); | ||
107 | |||
108 | /* device enable */ | ||
109 | outl(inl(0x6000600C) | 0x807, 0x6000600C); | ||
110 | |||
111 | /* enable external dev clock clocks */ | ||
112 | outl(inl(0x6000600c) | 0x2, 0x6000600c); | ||
113 | |||
114 | /* external dev clock to 24MHz */ | ||
115 | outl(inl(0x70000018) & ~0xc, 0x70000018); | ||
116 | #else | ||
117 | /* device reset */ | ||
118 | outl(inl(0xcf005030) | 0x80, 0xcf005030); | ||
119 | outl(inl(0xcf005030) & ~0x80, 0xcf005030); | ||
120 | |||
121 | /* device enable */ | ||
122 | outl(inl(0xcf005000) | 0x80, 0xcf005000); | ||
123 | |||
124 | /* GPIO D06 enable for output */ | ||
125 | outl(inl(0xcf00000c) | 0x40, 0xcf00000c); | ||
126 | outl(inl(0xcf00001c) & ~0x40, 0xcf00001c); | ||
127 | /* bits 11,10 == 01 */ | ||
128 | outl(inl(0xcf004040) | 0x400, 0xcf004040); | ||
129 | outl(inl(0xcf004040) & ~0x800, 0xcf004040); | ||
130 | |||
131 | outl(inl(0xcf004048) & ~0x1, 0xcf004048); | ||
132 | |||
133 | outl(inl(0xcf000004) & ~0xf, 0xcf000004); | ||
134 | outl(inl(0xcf004044) & ~0xf, 0xcf004044); | ||
135 | |||
136 | /* C03 = 0 */ | ||
137 | outl(inl(0xcf000008) | 0x8, 0xcf000008); | ||
138 | outl(inl(0xcf000018) | 0x8, 0xcf000018); | ||
139 | outl(inl(0xcf000028) & ~0x8, 0xcf000028); | ||
140 | #endif | ||
141 | |||
142 | return 0; | ||
143 | } | ||
144 | |||
145 | void wmcodec_write(int reg, int data) | ||
146 | { | ||
147 | /* Todo: Since the ipod_i2c_* functions also work on H10 and possibly other PP | ||
148 | targets, these functions should probably be renamed */ | ||
149 | #if defined(IRIVER_H10) || defined(IRIVER_H10_5GB) | ||
150 | /* The H10's audio codec uses an I2C address of 0x1b */ | ||
151 | ipod_i2c_send(0x1b, (reg<<1) | ((data&0x100)>>8),data&0xff); | ||
152 | #else | ||
153 | /* The iPod's audio codecs use an I2C address of 0x1a */ | ||
154 | ipod_i2c_send(0x1a, (reg<<1) | ((data&0x100)>>8),data&0xff); | ||
155 | #endif | ||
156 | } | ||