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fix PSC3 interrupt level and prio

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fix PIC communication in PSC3 interrupt handler
This commit is contained in:
Markus Fröschle
2016-02-07 12:28:13 +00:00
parent 07f58e4284
commit 1ff219bebf
3 changed files with 8 additions and 10 deletions
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12
BaS_gcc/sys/interrupts.c
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@@ -37,7 +37,7 @@
#include "dma.h"
#include "pci.h"
//#define IRQ_DEBUG
// #define IRQ_DEBUG
#if defined(IRQ_DEBUG)
#define dbg(format, arg...) do { xprintf("DEBUG %s(): " format, __FUNCTION__, ##arg); } while (0)
#else
@@ -247,20 +247,20 @@ bool pic_interrupt_handler(void *arg1, void *arg2)
dbg("PIC interrupt\r\n");
rcv_byte = MCF_PSC3_PSCRB_8BIT;
rcv_byte = * (volatile uint8_t *) (&MCF_PSC3_PSCRB_8BIT);
if (rcv_byte == 2) /* PIC requests RTC data */
{
uint8_t *rtc_reg = (uint8_t *) 0xffff8961;
uint8_t *rtc_data = (uint8_t *) 0xffff8963;
volatile uint8_t *rtc_reg = (uint8_t *) 0xffff8961;
volatile uint8_t *rtc_data = (uint8_t *) 0xffff8963;
int index = 0;
err("PIC interrupt: requesting RTC data\r\n");
MCF_PSC3_PSCTB_8BIT = 0x82; // header byte to PIC
* (volatile uint8_t *) (&MCF_PSC3_PSCTB_8BIT) = 0x82; // header byte to PIC
do
{
*rtc_reg = 0;
MCF_PSC3_PSCTB_8BIT = *rtc_data;
* (volatile uint8_t *) (&MCF_PSC3_PSCTB_8BIT) = *rtc_data;
} while (index++ < 64);
}
return true;