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h8300: IRQ handling update

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- add missing file and declare.
- remove unused file and macros.
- some cleanup.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yoshinori Sato
2008-02-23 15:23:59 -08:00
committed by Linus Torvalds
parent 4223cc3436
commit 5cc265a5de
7 changed files with 94 additions and 327 deletions
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82
arch/h8300/platform/h8300h/irq.c Normal file
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@@ -0,0 +1,82 @@
/*
* Interrupt handling H8/300H depend.
* Yoshinori Sato <ysato@users.sourceforge.jp>
*
*/
#include <linux/init.h>
#include <linux/errno.h>
#include <asm/ptrace.h>
#include <asm/traps.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/regs306x.h>
const int __initdata h8300_saved_vectors[] = {
#if defined(CONFIG_GDB_DEBUG)
TRAP3_VEC, /* TRAPA #3 is GDB breakpoint */
#endif
-1,
};
const h8300_vector __initdata h8300_trap_table[] = {
0, 0, 0, 0, 0, 0, 0, 0,
system_call,
0,
0,
trace_break,
};
int h8300_enable_irq_pin(unsigned int irq)
{
int bitmask;
if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
return 0;
/* initialize IRQ pin */
bitmask = 1 << (irq - EXT_IRQ0);
switch(irq) {
case EXT_IRQ0:
case EXT_IRQ1:
case EXT_IRQ2:
case EXT_IRQ3:
if (H8300_GPIO_RESERVE(H8300_GPIO_P8, bitmask) == 0)
return -EBUSY;
H8300_GPIO_DDR(H8300_GPIO_P8, bitmask, H8300_GPIO_INPUT);
break;
case EXT_IRQ4:
case EXT_IRQ5:
if (H8300_GPIO_RESERVE(H8300_GPIO_P9, bitmask) == 0)
return -EBUSY;
H8300_GPIO_DDR(H8300_GPIO_P9, bitmask, H8300_GPIO_INPUT);
break;
}
return 0;
}
void h8300_disable_irq_pin(unsigned int irq)
{
int bitmask;
if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
return;
/* disable interrupt & release IRQ pin */
bitmask = 1 << (irq - EXT_IRQ0);
switch(irq) {
case EXT_IRQ0:
case EXT_IRQ1:
case EXT_IRQ2:
case EXT_IRQ3:
*(volatile unsigned char *)IER &= ~bitmask;
H8300_GPIO_FREE(H8300_GPIO_P8, bitmask);
break ;
case EXT_IRQ4:
case EXT_IRQ5:
*(volatile unsigned char *)IER &= ~bitmask;
H8300_GPIO_FREE(H8300_GPIO_P9, bitmask);
break;
}
}