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Kill some yellow

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20416 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Maurus Cuelenaere 2009-03-20 23:02:10 +00:00
parent c7b6ad5fdf
commit fe064db965
1 changed files with 67 additions and 3 deletions
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70
firmware/target/mips/ingenic_jz47xx/timer-jz4740.c
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@ -21,8 +21,72 @@
#include "config.h"
#include "jz4740.h"
#include "system.h"
#include "timer.h"
/* Interrupt handler */
void TCU1(void)
{
__tcu_clear_full_match_flag(1);
if (pfn_timer != NULL)
pfn_timer();
}
bool __timer_set(long cycles, bool set);
bool __timer_register(void);
void __timer_unregister(void);
/* TODO: figure out what cycles means */
bool __timer_set(long cycles, bool start)
{
unsigned int latch, old_irq;
if(cycles < 1)
return false;
if (start && pfn_unregister != NULL)
{
pfn_unregister();
pfn_unregister = NULL;
}
old_irq = disable_irq_save();
__tcu_stop_counter(1);
__tcu_disable_pwm_output(1);
__tcu_mask_half_match_irq(1);
__tcu_unmask_full_match_irq(1);
/* EXTAL clock = 12Mhz */
__tcu_select_extalclk(1);
/* 12Mhz / 4 = 3Mhz */
__tcu_select_clk_div4(1);
latch = cycles;
REG_TCU_TCNT(1) = 0;
REG_TCU_TDFR(1) = latch;
REG_TCU_TDHR(1) = latch;
__tcu_clear_full_match_flag(1);
system_enable_irq(IRQ_TCU1);
restore_irq(old_irq);
}
bool __timer_register(void)
{
unsigned int old_irq = disable_irq_save();
__tcu_start_counter(1);
restore_irq(old_irq);
}
void __timer_unregister(void)
{
unsigned int old_irq = disable_irq_save();
__tcu_stop_counter(1);
restore_irq(old_irq);
}