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rbcodec: Hooks for target specific functions in dsp_process loop

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Use them to move tick counting, yielding and coldfire macsr handling
code to a rockbox specific file.

Change-Id: Id7417dc98c08a342eba45ba56b044a276e50564b
Reviewed-on: http://gerrit.rockbox.org/229
Tested-by: Nils Wallménius <nils@rockbox.org>
Reviewed-by: Nils Wallménius <nils@rockbox.org>
This commit is contained in:
Michael Sevakis 2012-05-03 15:54:48 +02:00 • committed by Nils Wallménius
parent 00cf2ce711
commit dbe5e5f2df
3 changed files with 74 additions and 47 deletions
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58
lib/rbcodec/dsp/dsp_core.c
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@ -21,6 +21,7 @@
****************************************************************************/
#include "config.h"
#include "system.h"
#include "platform.h"
#include "dsp_core.h"
#include "dsp_sample_io.h"
#include <sys/types.h>
@ -52,9 +53,6 @@ struct dsp_config
active/enabled stages */
/** Misc. extra stuff **/
#ifdef CPU_COLDFIRE
unsigned long old_macsr; /* Old macsr value to restore */
#endif
#if 0 /* Not needed now but enable if something must know this */
bool processing; /* DSP is processing (to thwart inopportune
buffer moves) */
@ -350,31 +348,12 @@ bool dsp_proc_call(struct dsp_proc_entry *this, struct dsp_buffer **buf_p,
return false;
}
static inline void dsp_process_start(struct dsp_config *dsp)
{
#if defined(CPU_COLDFIRE)
/* set emac unit for dsp processing, and save old macsr, we're running in
codec thread context at this point, so can't clobber it */
dsp->old_macsr = coldfire_get_macsr();
coldfire_set_macsr(EMAC_FRACTIONAL | EMAC_SATURATE);
#endif
#if 0 /* Not needed now but enable if something must know this */
dsp->processing = true;
#endif
(void)dsp;
}
static inline void dsp_process_end(struct dsp_config *dsp)
{
#if 0 /* Not needed now but enable if something must know this */
dsp->processing = false;
#endif
#if defined(CPU_COLDFIRE)
/* set old macsr again */
coldfire_set_macsr(dsp->old_macsr);
#endif
(void)dsp;
}
#ifndef DSP_PROCESS_START
/* These do nothing if not previously defined */
#define DSP_PROCESS_START()
#define DSP_PROCESS_LOOP()
#define DSP_PROCESS_END()
#endif /* !DSP_PROCESS_START */
/**
* dsp_process:
@ -429,11 +408,10 @@ void dsp_process(struct dsp_config *dsp, struct dsp_buffer *src,
return;
}
/* At least perform one yield before starting */
long last_yield = current_tick;
yield();
dsp_process_start(dsp);
DSP_PROCESS_START();
#if 0 /* Not needed now but enable if something must know this */
dsp->processing = true;
#endif
/* Tag input with codec-specified sample format */
src->format = dsp->io_data.format;
@ -478,16 +456,14 @@ void dsp_process(struct dsp_config *dsp, struct dsp_buffer *src,
dsp_advance_buffer32(buf, outcount);
dsp_advance_buffer_output(dst, outcount);
/* Yield at least once each tick */
long tick = current_tick;
if (TIME_AFTER(tick, last_yield))
{
last_yield = tick;
yield();
}
DSP_PROCESS_LOOP();
} /* while */
dsp_process_end(dsp);
#if 0 /* Not needed now but enable if something must know this */
dsp->process = false;
#endif
DSP_PROCESS_END();
}
intptr_t dsp_configure(struct dsp_config *dsp, unsigned int setting,