devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

the gigabeat supports all frequencies but 64kHz

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12065 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Marcoen Hirschberg 2007-01-18 13:48:06 +00:00
parent 97d59dd38c
commit b01da58c55
2 changed files with 43 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

4
firmware/export/config-gigabeat.h
View file

@ -131,5 +131,9 @@
#define BOOTFILE_EXT "gigabeat" #define BOOTFILE_EXT "gigabeat"
#define BOOTFILE "rockbox." BOOTFILE_EXT #define BOOTFILE "rockbox." BOOTFILE_EXT
#define HW_SAMPR_CAPS (SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_48 | \
SAMPR_CAP_44 | SAMPR_CAP_32 | SAMPR_CAP_24 | \
SAMPR_CAP_22 | SAMPR_CAP_16 | SAMPR_CAP_12 | \
SAMPR_CAP_11 | SAMPR_CAP_8)
#endif #endif

45
firmware/target/arm/gigabeat/meg-fx/pcm-meg-fx.c
View file

@ -26,6 +26,18 @@
static int pcm_freq = HW_SAMPR_DEFAULT; /* 44.1 is default */ static int pcm_freq = HW_SAMPR_DEFAULT; /* 44.1 is default */
#define GIGABEAT_8000HZ 0x4d
#define GIGABEAT_11025HZ 0x32
#define GIGABEAT_12000HZ 0x61
#define GIGABEAT_16000HZ 0x55
#define GIGABEAT_22050HZ 0x36
#define GIGABEAT_24000HZ 0x79
#define GIGABEAT_32000HZ 0x59
#define GIGABEAT_44100HZ 0x22
#define GIGABEAT_48000HZ 0x41
#define GIGABEAT_88200HZ 0x3e
#define GIGABEAT_96000HZ 0x5d
#define FIFO_COUNT ((IISFCON >> 6) & 0x01F) #define FIFO_COUNT ((IISFCON >> 6) & 0x01F)
/* number of bytes in FIFO */ /* number of bytes in FIFO */
@ -213,28 +225,49 @@ void pcm_play_pause_unpause(void)
INTMSK &= ~(1<<19); INTMSK &= ~(1<<19);
} }
void pcm_set_frequency(unsigned int frequency) void pcm_set_frequency(unsigned int frequency)
{ {
int sr_ctrl; int sr_ctrl;
switch(frequency) switch(frequency)
{ {
case SAMPR_8:
sr_ctrl = GIGABEAT_8000HZ;
break;
case SAMPR_11: case SAMPR_11:
sr_ctrl = 0x19 << 1; sr_ctrl = GIGABEAT_11025HZ;
break;
case SAMPR_12:
sr_ctrl = GIGABEAT_12000HZ;
break;
case SAMPR_16:
sr_ctrl = GIGABEAT_16000HZ;
break; break;
case SAMPR_22: case SAMPR_22:
sr_ctrl = 0x1B << 1; sr_ctrl = GIGABEAT_22050HZ;
break;
case SAMPR_24:
sr_ctrl = GIGABEAT_24000HZ;
break;
case SAMPR_32:
sr_ctrl = GIGABEAT_32000HZ;
break; break;
default: default:
frequency = SAMPR_44;
case SAMPR_44: case SAMPR_44:
sr_ctrl = 0x11 << 1; sr_ctrl = GIGABEAT_44100HZ;
break;
case SAMPR_48:
sr_ctrl = GIGABEAT_48000HZ;
break; break;
case SAMPR_88: case SAMPR_88:
sr_ctrl = 0x1F << 1; sr_ctrl = GIGABEAT_88200HZ;
break;
case SAMPR_96:
sr_ctrl = GIGABEAT_96000HZ;
break; break;
} }
audiohw_set_sample_rate(sr_ctrl); audiohw_set_sample_rate(sr_ctrl);
pcm_freq = frequency; pcm_freq = frequency;
} }