len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-08 20:55:17 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Bring consistency to pcm implementation and samplerate handling. Less low-level duplication. A small test_sampr fix so it works on coldfire again.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19400 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2008-12-12 11:01:07 +00:00
parent 0ad97d13fc
commit e69d567d9e
37 changed files with 316 additions and 449 deletions
Download patch file Download diff file Expand all files Collapse all files

11
firmware/target/arm/as3525/pcm-as3525.c
View file

@ -138,8 +138,10 @@ void pcm_postinit(void)
pcm_apply_settings();
}
void pcm_set_frequency(unsigned int frequency)
void pcm_dma_apply_settings(void)
{
unsigned long frequency = pcm_sampr;
const int divider = (((AS3525_PLLA_FREQ/128) + (frequency/2)) / frequency) - 1;
if(divider < 0 || divider > 511)
panicf("unsupported frequency %d", frequency);
@ -147,13 +149,6 @@ void pcm_set_frequency(unsigned int frequency)
CGU_AUDIO &= ~(((511 ^ divider) << 2) /* I2SOUT */
/*| ((511 ^ divider) << 14) */ /* I2SIN */
);
pcm_curr_sampr = frequency;
}
void pcm_apply_settings(void)
{
pcm_set_frequency(HW_SAMPR_DEFAULT);
}
size_t pcm_get_bytes_waiting(void)