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iAudio: First unfinished attempt for tlv320 driver and rockbox integration

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7286 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Christian Gmeiner 2005-08-06 10:12:19 +00:00
parent 095854b989
commit 14e80671af
8 changed files with 441 additions and 142 deletions
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56
firmware/pcm_playback.c
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@ -24,7 +24,11 @@
#ifndef SIMULATOR
#include "cpu.h"
#include "i2c.h"
#if defined(HAVE_UDA1380)
#include "uda1380.h"
#elif defined(HAVE_TLV320)
#include "tlv320.h"
#endif
#include "system.h"
#endif
#include "logf.h"
@ -181,13 +185,18 @@ void pcm_play_data(void (*get_more)(unsigned char** start, long* size))
{
unsigned char *start;
long size;
callback_for_more = get_more;
get_more((unsigned char **)&start, (long *)&size);
get_more(&next_start, &next_size);
dma_start(start, size);
#if defined(HAVE_UDA1380)
uda1380_mute(false);
#elif defined(HAVE_TLV320)
tlv320_mute(false);
#endif
}
long pcm_get_bytes_waiting(void)
@ -198,7 +207,12 @@ long pcm_get_bytes_waiting(void)
void pcm_play_stop(void)
{
if (pcm_playing) {
#if defined(HAVE_UDA1380)
uda1380_mute(true);
#elif defined(HAVE_TLV320)
tlv320_mute(true);
#endif
dma_stop();
}
}
@ -216,14 +230,23 @@ void pcm_play_pause(bool play)
IIS2CONFIG = (pcm_freq << 12) | 0x300 | 4 << 2;
EBU1CONFIG = (7 << 12) | (3 << 8) | (1 << 5) | (5 << 2);
DCR0 |= DMA_EEXT | DMA_START;
#if defined(HAVE_UDA1380)
uda1380_mute(false);
#elif defined(HAVE_TLV320)
tlv320_mute(false);
#endif
}
else if(!pcm_paused && !play)
{
logf("pause");
#if defined(HAVE_UDA1380)
uda1380_mute(true);
#elif defined(HAVE_TLV320)
tlv320_mute(true);
#endif
/* Disable DMA peripheral request. */
DCR0 &= ~DMA_EEXT;
IIS2CONFIG = 0x800;
@ -250,7 +273,7 @@ void DMA0(void)
DSR0 = 1; /* Clear interrupt */
DCR0 &= ~DMA_EEXT;
/* Stop on error */
if(res & 0x70)
{
@ -274,7 +297,7 @@ void DMA0(void)
logf("DMA No Data:0x%04x", res);
}
}
IPR |= (1<<14); /* Clear pending interrupt request */
}
@ -282,8 +305,12 @@ void pcm_init(void)
{
pcm_playing = false;
pcm_paused = false;
#if defined(HAVE_UDA1380)
uda1380_init();
#elif defined(HAVE_TLV320)
tlv320_init();
#endif
BUSMASTER_CTRL = 0x81; /* PARK[1,0]=10 + BCR24BIT */
DIVR0 = 54; /* DMA0 is mapped into vector 54 in system.c */
@ -292,18 +319,25 @@ void pcm_init(void)
/* Reset the audio FIFO */
IIS2CONFIG = 0x800;
/* Enable interrupt at level 7, priority 0 */
ICR4 = (ICR4 & 0xffff00ff) | 0x00001c00;
IMR &= ~(1<<14); /* bit 14 is DMA0 */
pcm_set_frequency(44100);
/* Turn on headphone power with audio output muted. */
#if defined(HAVE_UDA1380)
uda1380_mute(true);
#elif defined(HAVE_TLV320)
tlv320_mute(true);
#endif
sleep(HZ/4);
#if defined(HAVE_UDA1380)
uda1380_enable_output(true);
#elif defined(HAVE_TLV320)
tlv320_enable_output(true);
#endif
/* Call dma_stop to initialize everything. */
dma_stop();
}