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Split the enable_fiq(fiq_handler) function into separate set_fiq_handler(fiq_handler) and enable_fiq(void) functions. This allows temporary disabling of the FIQ without knowing which fiq handler is in use.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11875 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2007-01-01 12:09:45 +00:00
parent 9d9b8c08de
commit 147693819d
3 changed files with 12 additions and 5 deletions
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5
firmware/export/system.h
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@ -314,11 +314,14 @@ static inline int set_irq_level(int level)
return (cpsr >> 7) & 1;
}
static inline void enable_fiq(void(*fiq_handler)(void))
static inline void set_fiq_handler(void(*fiq_handler)(void))
{
/* Install the FIQ handler */
*((unsigned int*)(15*4)) = (unsigned int)fiq_handler;
}
static inline void enable_fiq(void)
{
/* Clear FIQ disable bit */
asm volatile (
"mrs r0, cpsr \n"\

3
firmware/target/arm/gigabeat/meg-fx/pcm-meg-fx.c
View file

@ -146,7 +146,8 @@ void pcm_play_dma_start(const void *addr, size_t size)
/* clear pending DMA interrupt */
SRCPND = 1<<19;
enable_fiq(fiq);
set_fiq_handler(fiq);
enable_fiq();
/* unmask the DMA interrupt */
INTMSK &= ~(1<<19);

9
firmware/target/arm/pcm-pp.c
View file

@ -217,7 +217,8 @@ void pcm_play_dma_start(const void *addr, size_t size)
#endif
/* Clear the FIQ disable bit in cpsr_c */
enable_fiq(fiq);
set_fiq_handler(fiq);
enable_fiq();
/* Enable playback FIFO */
#if CONFIG_CPU == PP5020
@ -290,7 +291,8 @@ void pcm_play_pause_unpause(void)
{
/* Enable the FIFO and fill it */
enable_fiq(fiq);
set_fiq_handler(fiq);
enable_fiq();
/* Enable playback FIFO */
#if CONFIG_CPU == PP5020
@ -459,7 +461,8 @@ void pcm_rec_dma_start(void *addr, size_t size)
/* enable record fifo */
outl(inl(0x70002800) | 0x10000000, 0x70002800);
enable_fiq(fiq_record);
set_fiq_handler(fiq_record);
enable_fiq();
}
void pcm_close_recording(void)