diff options
Diffstat (limited to 'firmware/drivers/audio/uda1341.c')
-rw-r--r-- | firmware/drivers/audio/uda1341.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/firmware/drivers/audio/uda1341.c b/firmware/drivers/audio/uda1341.c new file mode 100644 index 0000000000..f9d95eff02 --- /dev/null +++ b/firmware/drivers/audio/uda1341.c | |||
@@ -0,0 +1,184 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id: uda1380.c 21975 2009-07-19 22:45:32Z bertrik $ | ||
9 | * | ||
10 | * Copyright (C) 2009 by Bob Cousins | ||
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 <string.h> | ||
22 | |||
23 | #include "config.h" | ||
24 | #include "logf.h" | ||
25 | #include "system.h" | ||
26 | #include "audio.h" | ||
27 | #include "debug.h" | ||
28 | |||
29 | #include "audiohw.h" | ||
30 | |||
31 | |||
32 | const struct sound_settings_info audiohw_settings[] = { | ||
33 | [SOUND_VOLUME] = {"dB", 0, 1, -84, 0, -25}, | ||
34 | [SOUND_BASS] = {"dB", 0, 2, 0, 24, 0}, | ||
35 | [SOUND_TREBLE] = {"dB", 0, 2, 0, 6, 0}, | ||
36 | [SOUND_BALANCE] = {"%", 0, 1,-100, 100, 0}, | ||
37 | [SOUND_CHANNELS] = {"", 0, 1, 0, 5, 0}, | ||
38 | [SOUND_STEREO_WIDTH] = {"%", 0, 5, 0, 250, 100}, | ||
39 | #ifdef HAVE_RECORDING | ||
40 | [SOUND_LEFT_GAIN] = {"dB", 1, 1,-128, 96, 0}, | ||
41 | [SOUND_RIGHT_GAIN] = {"dB", 1, 1,-128, 96, 0}, | ||
42 | [SOUND_MIC_GAIN] = {"dB", 1, 1,-128, 108, 16}, | ||
43 | #endif | ||
44 | }; | ||
45 | |||
46 | /****************************************************************************/ | ||
47 | |||
48 | /* ------------------------------------------------- */ | ||
49 | /* Local functions and variables */ | ||
50 | /* ------------------------------------------------- */ | ||
51 | |||
52 | /* Generic L3 functions */ | ||
53 | |||
54 | #define L3PORT GPBDAT | ||
55 | #define L3MODE (1 << 2) | ||
56 | #define L3DATA (1 << 3) | ||
57 | #define L3CLOCK (1 << 4) | ||
58 | |||
59 | static void l3_init (void) | ||
60 | { | ||
61 | L3PORT |= L3MODE | L3CLOCK; | ||
62 | L3PORT &= L3DATA; | ||
63 | |||
64 | S3C2440_GPIO_CONFIG (GPBCON, 2, GPIO_OUTPUT); /* L3 MODE */ | ||
65 | S3C2440_GPIO_CONFIG (GPBCON, 3, GPIO_OUTPUT); /* L3 DATA */ | ||
66 | S3C2440_GPIO_CONFIG (GPBCON, 4, GPIO_OUTPUT); /* L3 CLOCK */ | ||
67 | |||
68 | S3C2440_GPIO_PULLUP (GPBUP, 2, GPIO_PULLUP_DISABLE); | ||
69 | S3C2440_GPIO_PULLUP (GPBUP, 3, GPIO_PULLUP_DISABLE); | ||
70 | S3C2440_GPIO_PULLUP (GPBUP, 4, GPIO_PULLUP_DISABLE); | ||
71 | } | ||
72 | |||
73 | static void bit_delay (void) | ||
74 | { | ||
75 | int j; | ||
76 | for (j=0; j<4; j++) | ||
77 | ; | ||
78 | } | ||
79 | |||
80 | static void l3_write_byte (unsigned char data, bool address_mode) | ||
81 | { | ||
82 | int bit; | ||
83 | |||
84 | L3PORT |= L3CLOCK; | ||
85 | if (address_mode) | ||
86 | L3PORT &= ~L3MODE; | ||
87 | else | ||
88 | L3PORT |= L3MODE; | ||
89 | |||
90 | for (bit=0; bit < 8; bit++) | ||
91 | { | ||
92 | if (data & 1) | ||
93 | { | ||
94 | L3PORT |= L3DATA; | ||
95 | } | ||
96 | else | ||
97 | { | ||
98 | L3PORT &= ~L3DATA; | ||
99 | } | ||
100 | L3PORT &= ~L3CLOCK; | ||
101 | bit_delay(); | ||
102 | L3PORT |= L3CLOCK; | ||
103 | bit_delay(); | ||
104 | |||
105 | data >>= 1; | ||
106 | } | ||
107 | |||
108 | if (address_mode) | ||
109 | L3PORT |= L3MODE; | ||
110 | else | ||
111 | L3PORT &= ~L3MODE; | ||
112 | bit_delay(); | ||
113 | } | ||
114 | |||
115 | static void l3_write_addr (unsigned char addr) | ||
116 | { | ||
117 | /* write address byte */ | ||
118 | l3_write_byte (addr, true); | ||
119 | } | ||
120 | |||
121 | static void l3_write_data (unsigned char data) | ||
122 | { | ||
123 | /* write data byte */ | ||
124 | l3_write_byte (data, false); | ||
125 | } | ||
126 | |||
127 | /****************************************************************************/ | ||
128 | |||
129 | /* UDA1341 access functions */ | ||
130 | |||
131 | static int udacodec_write(unsigned char reg, unsigned short value) | ||
132 | { | ||
133 | l3_write_addr (UDA1341_ADDR | reg); | ||
134 | l3_write_data (value & 0xff); | ||
135 | return 0; | ||
136 | } | ||
137 | |||
138 | static void udacodec_reset(void) | ||
139 | { | ||
140 | /* uda reset */ | ||
141 | l3_init(); | ||
142 | |||
143 | udacodec_write (UDA_REG_STATUS, UDA_STATUS_0 | UDA_RESET | UDA_SYSCLK_256FS | | ||
144 | I2S_IFMT_IIS); | ||
145 | udacodec_write (UDA_REG_STATUS, UDA_STATUS_0 | UDA_SYSCLK_256FS | I2S_IFMT_IIS); | ||
146 | udacodec_write (UDA_REG_STATUS, UDA_STATUS_1 | UDA_POWER_DAC_ON); | ||
147 | } | ||
148 | |||
149 | /****************************************************************************/ | ||
150 | |||
151 | /* Audio API functions */ | ||
152 | |||
153 | void audiohw_init(void) | ||
154 | { | ||
155 | udacodec_reset(); | ||
156 | } | ||
157 | |||
158 | void audiohw_close(void) | ||
159 | { | ||
160 | } | ||
161 | |||
162 | void audiohw_set_bass(int value) | ||
163 | { | ||
164 | } | ||
165 | |||
166 | void audiohw_set_treble(int value) | ||
167 | { | ||
168 | } | ||
169 | |||
170 | void audiohw_mute(bool mute) | ||
171 | { | ||
172 | } | ||
173 | |||
174 | void audiohw_set_prescaler(int val) | ||
175 | { | ||
176 | } | ||
177 | |||
178 | void audiohw_postinit(void) | ||
179 | { | ||
180 | } | ||
181 | |||
182 | void audiohw_set_frequency(int fsel) | ||
183 | { | ||
184 | } | ||