83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
#ifndef RBCODECCONFIG_H_INCLUDED
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#define RBCODECCONFIG_H_INCLUDED
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/* Explicit path to avoid issues with name clashes (libopus) */
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#include "../firmware/export/config.h"
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#ifndef __ASSEMBLER__
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/* NULL, offsetof, size_t */
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#include <stddef.h>
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/* ssize_t, off_t, open, close, read, lseek, SEEK_SET, SEEK_CUR, SEEK_END,
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* O_RDONLY, O_WRONLY, O_CREAT, O_APPEND, MAX_PATH, filesize */
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#include "file.h"
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/* {,u}int{8,16,32,64}_t, , intptr_t, uintptr_t, bool, true, false, swap16,
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* swap32, hto{be,le}{16,32}, {be,le}toh{16,32}, ROCKBOX_{BIG,LITTLE}_ENDIAN,
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* {,U}INT{8,16,32,64}_{MIN,MAX} */
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#include "system.h"
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/* HZ, TIME_AFTER, current_tick */
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#include "kernel.h"
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/* Structure to record some info during processing call */
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struct dsp_loop_context
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{
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long last_yield;
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#ifdef CPU_COLDFIRE
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unsigned long old_macsr;
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#endif
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};
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static inline void dsp_process_start(struct dsp_loop_context *ctx)
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{
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/* At least perform one yield before starting */
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ctx->last_yield = current_tick;
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yield();
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#if defined(CPU_COLDFIRE)
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/* set emac unit for dsp processing, and save old macsr, we're running in
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codec thread context at this point, so can't clobber it */
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ctx->old_macsr = coldfire_get_macsr();
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coldfire_set_macsr(EMAC_FRACTIONAL | EMAC_SATURATE);
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#endif
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}
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static inline void dsp_process_loop(struct dsp_loop_context *ctx)
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{
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/* Yield at least once each tick */
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long tick = current_tick;
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if (TIME_AFTER(tick, ctx->last_yield))
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{
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ctx->last_yield = tick;
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yield();
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}
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}
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static inline void dsp_process_end(struct dsp_loop_context *ctx)
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{
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#if defined(CPU_COLDFIRE)
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/* set old macsr again */
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coldfire_set_macsr(ctx->old_macsr);
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#endif
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(void)ctx;
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}
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#define DSP_PROCESS_START() \
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struct dsp_loop_context __ctx; \
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dsp_process_start(&__ctx)
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#define DSP_PROCESS_LOOP() \
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dsp_process_loop(&__ctx)
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#define DSP_PROCESS_END() \
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dsp_process_end(&__ctx)
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#endif
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#define DSP_OUT_MIN_HZ PLAY_SAMPR_HW_MIN
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#define DSP_OUT_MAX_HZ PLAY_SAMPR_MAX
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#define DSP_OUT_DEFAULT_HZ PLAY_SAMPR_DEFAULT
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#endif
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