63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
#define default_interrupt(name) \
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extern __attribute__((weak,alias("UIRQ"))) void name (void)
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default_interrupt(INT_MCA);
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default_interrupt(INT_SD);
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default_interrupt(INT_MHA);
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/* default_interrupt(INT_USB); seems wrong */
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default_interrupt(INT_DSP);
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default_interrupt(INT_PCNT);
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default_interrupt(INT_WD);
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default_interrupt(INT_T1);
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default_interrupt(INT_T0);
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default_interrupt(INT_RTC);
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default_interrupt(INT_DMA);
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default_interrupt(INT_KEY);
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default_interrupt(INT_EXT);
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default_interrupt(INT_IIC2);
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default_interrupt(INT_IIC1);
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default_interrupt(INT_ADC);
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default_interrupt(INT_DAC);
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default_interrupt(INT_NAND);
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default_interrupt(INT_YUV);
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/* this will be panicf() on regular rockbox fw */
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static void UIRQ(void)
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{
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while(1);
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}
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/* TRICK ALERT !!!!
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* The table is organized in reversed order so
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* clz on INTC_PD returns the index in this table
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*/
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void (* const irqvector[])(void) __attribute__((used)) =
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{
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UIRQ, UIRQ, UIRQ, UIRQ, UIRQ, INT_YUV, UIRQ, INT_NAND,
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UIRQ, INT_DAC, INT_ADC, UIRQ, UIRQ, INT_IIC1, INT_IIC2, UIRQ,
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UIRQ, INT_EXT, INT_KEY, INT_DMA, INT_RTC, INT_T0, INT_T1, INT_WD,
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INT_PCNT, UIRQ, INT_DSP, UIRQ, INT_MHA, INT_SD, UIRQ, INT_MCA
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};
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#define CPU_FREQ 60000000UL //???
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void udelay(unsigned int usec)
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{
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unsigned int i = ((usec * CPU_FREQ) / 2000000);
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asm volatile (
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".set noreorder \n"
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"1: \n"
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"bne %0, $0, 1b \n"
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"addiu %0, %0, -1 \n"
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".set reorder \n"
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: "=r" (i)
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: "0" (i)
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);
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}
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void mdelay(unsigned int msec)
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{
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unsigned int i;
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for(i=0; i<msec; i++)
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udelay(1000);
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}
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