082c44d20e
Now with the ide.h mess sorted out, most of these boards don't need their own directory. Move the headers out, and update the driver paths. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/*
|
|
* linux/arch/sh/boards/renesas/hs7751rvoip/irq.c
|
|
*
|
|
* Copyright (C) 2000 Kazumoto Kojima
|
|
*
|
|
* Renesas Technology Sales HS7751RVoIP Support.
|
|
*
|
|
* Modified for HS7751RVoIP by
|
|
* Atom Create Engineering Co., Ltd. 2002.
|
|
* Lineo uSolutions, Inc. 2003.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/irq.h>
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/hs7751rvoip.h>
|
|
|
|
static int mask_pos[] = {8, 9, 10, 11, 12, 13, 0, 1, 2, 3, 4, 5, 6, 7};
|
|
|
|
static void enable_hs7751rvoip_irq(unsigned int irq);
|
|
static void disable_hs7751rvoip_irq(unsigned int irq);
|
|
|
|
/* shutdown is same as "disable" */
|
|
#define shutdown_hs7751rvoip_irq disable_hs7751rvoip_irq
|
|
|
|
static void ack_hs7751rvoip_irq(unsigned int irq);
|
|
static void end_hs7751rvoip_irq(unsigned int irq);
|
|
|
|
static unsigned int startup_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
enable_hs7751rvoip_irq(irq);
|
|
return 0; /* never anything pending */
|
|
}
|
|
|
|
static void disable_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
unsigned short val;
|
|
unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
|
|
|
|
/* Set the priority in IPR to 0 */
|
|
val = ctrl_inw(IRLCNTR3);
|
|
val &= mask;
|
|
ctrl_outw(val, IRLCNTR3);
|
|
}
|
|
|
|
static void enable_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
unsigned short val;
|
|
unsigned short value = (0x0001 << mask_pos[irq]);
|
|
|
|
/* Set priority in IPR back to original value */
|
|
val = ctrl_inw(IRLCNTR3);
|
|
val |= value;
|
|
ctrl_outw(val, IRLCNTR3);
|
|
}
|
|
|
|
static void ack_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
disable_hs7751rvoip_irq(irq);
|
|
}
|
|
|
|
static void end_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
|
|
enable_hs7751rvoip_irq(irq);
|
|
}
|
|
|
|
static struct hw_interrupt_type hs7751rvoip_irq_type = {
|
|
.typename = "HS7751RVoIP IRQ",
|
|
.startup = startup_hs7751rvoip_irq,
|
|
.shutdown = shutdown_hs7751rvoip_irq,
|
|
.enable = enable_hs7751rvoip_irq,
|
|
.disable = disable_hs7751rvoip_irq,
|
|
.ack = ack_hs7751rvoip_irq,
|
|
.end = end_hs7751rvoip_irq,
|
|
};
|
|
|
|
static void make_hs7751rvoip_irq(unsigned int irq)
|
|
{
|
|
disable_irq_nosync(irq);
|
|
irq_desc[irq].chip = &hs7751rvoip_irq_type;
|
|
disable_hs7751rvoip_irq(irq);
|
|
}
|
|
|
|
/*
|
|
* Initialize IRQ setting
|
|
*/
|
|
void __init init_hs7751rvoip_IRQ(void)
|
|
{
|
|
int i;
|
|
|
|
/* IRL0=ON HOOK1
|
|
* IRL1=OFF HOOK1
|
|
* IRL2=ON HOOK2
|
|
* IRL3=OFF HOOK2
|
|
* IRL4=Ringing Detection
|
|
* IRL5=CODEC
|
|
* IRL6=Ethernet
|
|
* IRL7=Ethernet Hub
|
|
* IRL8=USB Communication
|
|
* IRL9=USB Connection
|
|
* IRL10=USB DMA
|
|
* IRL11=CF Card
|
|
* IRL12=PCMCIA
|
|
* IRL13=PCI Slot
|
|
*/
|
|
ctrl_outw(0x9876, IRLCNTR1);
|
|
ctrl_outw(0xdcba, IRLCNTR2);
|
|
ctrl_outw(0x0050, IRLCNTR4);
|
|
ctrl_outw(0x4321, IRLCNTR5);
|
|
|
|
for (i=0; i<14; i++)
|
|
make_hs7751rvoip_irq(i);
|
|
}
|