Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
hosted: Document HW capabilities of audio drivers
One surprise: X3ii is capable of 384KHz playback
Change-Id: I0cc88637c81a21d54979e82b2941fe14de933d4d
+68
+26
firmware/drivers/audio/erosqlinux_codec.c
+26
firmware/drivers/audio/erosqlinux_codec.c
···
37
37
38
38
#include "logf.h"
39
39
40
+
/*
41
+
PCM device hw:0,0
42
+
43
+
ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED
44
+
FORMAT: S16_LE S24_LE
45
+
SUBFORMAT: STD
46
+
SAMPLE_BITS: [16 32]
47
+
FRAME_BITS: [16 64]
48
+
CHANNELS: [1 2]
49
+
RATE: [8000 192000]
50
+
PERIOD_TIME: (2666 8192000]
51
+
PERIOD_SIZE: [512 65536]
52
+
PERIOD_BYTES: [4096 131072]
53
+
PERIODS: [4 128]
54
+
BUFFER_TIME: (10666 32768000]
55
+
BUFFER_SIZE: [2048 262144]
56
+
BUFFER_BYTES: [4096 524288]
57
+
TICK_TIME: ALL
58
+
59
+
Mixer controls:
60
+
61
+
numid=1,iface=MIXER,name='Output Port Switch'
62
+
; type=INTEGER,access=rw------,values=1,min=0,max=5,step=0
63
+
: values=4
64
+
*/
65
+
40
66
static int fd_hw = -1;
41
67
42
68
static long int vol_l_hw = 255;
+42
firmware/drivers/audio/xduoolinux_codec.c
+42
firmware/drivers/audio/xduoolinux_codec.c
···
36
36
37
37
#include "logf.h"
38
38
39
+
/*
40
+
41
+
X3ii:
42
+
43
+
PCM device hw:0,0
44
+
45
+
ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED
46
+
FORMAT: S16_LE S24_LE
47
+
SUBFORMAT: STD
48
+
SAMPLE_BITS: [16 32]
49
+
FRAME_BITS: [16 64]
50
+
CHANNELS: [1 2]
51
+
RATE: [8000 384000]
52
+
PERIOD_TIME: (1333 16384000]
53
+
PERIOD_SIZE: [512 131072]
54
+
PERIOD_BYTES: [4096 262144]
55
+
PERIODS: [4 256]
56
+
BUFFER_TIME: (5333 65536000]
57
+
BUFFER_SIZE: [2048 524288]
58
+
BUFFER_BYTES: [4096 1048576]
59
+
TICK_TIME: ALL
60
+
61
+
Mixer controls:
62
+
63
+
numid=1,iface=MIXER,name='Left Playback Volume'
64
+
; type=INTEGER,access=rw------,values=1,min=0,max=255,step=0
65
+
: values=0
66
+
numid=2,iface=MIXER,name='Right Playback Volume'
67
+
; type=INTEGER,access=rw------,values=1,min=0,max=255,step=0
68
+
: values=0
69
+
numid=3,iface=MIXER,name='AK4490 Digital Filter'
70
+
; type=INTEGER,access=rw------,values=1,min=0,max=4,step=0
71
+
: values=0
72
+
numid=4,iface=MIXER,name='AK4490 Soft Mute'
73
+
; type=BOOLEAN,access=rw------,values=1
74
+
: values=off
75
+
numid=5,iface=MIXER,name='Output Port Switch'
76
+
; type=INTEGER,access=rw------,values=1,min=0,max=5,step=0
77
+
: values=0
78
+
79
+
*/
80
+
39
81
static int fd_hw = -1;
40
82
41
83
static long int vol_l_hw = 255;