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Diffstat (limited to 'arch/sh/kernel/cpu/irq/pint.c')
-rw-r--r--arch/sh/kernel/cpu/irq/pint.c169
1 files changed, 0 insertions, 169 deletions
diff --git a/arch/sh/kernel/cpu/irq/pint.c b/arch/sh/kernel/cpu/irq/pint.c
deleted file mode 100644
index 95d6024fe1a..00000000000
--- a/arch/sh/kernel/cpu/irq/pint.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * arch/sh/kernel/cpu/irq/pint.c - Interrupt handling for PINT-based IRQs.
- *
- * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi
- * Copyright (C) 2000 Kazumoto Kojima
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/machvec.h>
-
-static unsigned char pint_map[256];
-static unsigned long portcr_mask;
-
-static void enable_pint_irq(unsigned int irq);
-static void disable_pint_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_pint_irq disable_pint_irq
-
-static void mask_and_ack_pint(unsigned int);
-static void end_pint_irq(unsigned int irq);
-
-static unsigned int startup_pint_irq(unsigned int irq)
-{
- enable_pint_irq(irq);
- return 0; /* never anything pending */
-}
-
-static struct hw_interrupt_type pint_irq_type = {
- .typename = "PINT-IRQ",
- .startup = startup_pint_irq,
- .shutdown = shutdown_pint_irq,
- .enable = enable_pint_irq,
- .disable = disable_pint_irq,
- .ack = mask_and_ack_pint,
- .end = end_pint_irq
-};
-
-static void disable_pint_irq(unsigned int irq)
-{
- unsigned long val, flags;
-
- local_irq_save(flags);
- val = ctrl_inw(INTC_INTER);
- val &= ~(1 << (irq - PINT_IRQ_BASE));
- ctrl_outw(val, INTC_INTER); /* disable PINTn */
- portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2);
- local_irq_restore(flags);
-}
-
-static void enable_pint_irq(unsigned int irq)
-{
- unsigned long val, flags;
-
- local_irq_save(flags);
- val = ctrl_inw(INTC_INTER);
- val |= 1 << (irq - PINT_IRQ_BASE);
- ctrl_outw(val, INTC_INTER); /* enable PINTn */
- portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2;
- local_irq_restore(flags);
-}
-
-static void mask_and_ack_pint(unsigned int irq)
-{
- disable_pint_irq(irq);
-}
-
-static void end_pint_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_pint_irq(irq);
-}
-
-void make_pint_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].handler = &pint_irq_type;
- disable_pint_irq(irq);
-}
-
-void __init init_IRQ_pint(void)
-{
- int i;
-
- make_ipr_irq(PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY);
- make_ipr_irq(PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY);
-
- enable_irq(PINT0_IRQ);
- enable_irq(PINT8_IRQ);
-
- for(i = 0; i < 16; i++)
- make_pint_irq(PINT_IRQ_BASE + i);
-
- for(i = 0; i < 256; i++) {
- if (i & 1)
- pint_map[i] = 0;
- else if (i & 2)
- pint_map[i] = 1;
- else if (i & 4)
- pint_map[i] = 2;
- else if (i & 8)
- pint_map[i] = 3;
- else if (i & 0x10)
- pint_map[i] = 4;
- else if (i & 0x20)
- pint_map[i] = 5;
- else if (i & 0x40)
- pint_map[i] = 6;
- else if (i & 0x80)
- pint_map[i] = 7;
- }
-}
-
-int ipr_irq_demux(int irq)
-{
- unsigned long creg, dreg, d, sav;
-
- if (irq == PINT0_IRQ) {
-#if defined(CONFIG_CPU_SUBTYPE_SH7707)
- creg = PORT_PACR;
- dreg = PORT_PADR;
-#else
- creg = PORT_PCCR;
- dreg = PORT_PCDR;
-#endif
- sav = ctrl_inw(creg);
- ctrl_outw(sav | portcr_mask, creg);
- d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) &
- ctrl_inw(INTC_INTER) & 0xff;
- ctrl_outw(sav, creg);
-
- if (d == 0)
- return irq;
-
- return PINT_IRQ_BASE + pint_map[d];
- } else if (irq == PINT8_IRQ) {
-#if defined(CONFIG_CPU_SUBTYPE_SH7707)
- creg = PORT_PBCR;
- dreg = PORT_PBDR;
-#else
- creg = PORT_PFCR;
- dreg = PORT_PFDR;
-#endif
- sav = ctrl_inw(creg);
- ctrl_outw(sav | (portcr_mask >> 16), creg);
- d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) &
- (ctrl_inw(INTC_INTER) >> 8) & 0xff;
- ctrl_outw(sav, creg);
-
- if (d == 0)
- return irq;
-
- return PINT_IRQ_BASE + 8 + pint_map[d];
- }
-
- return irq;
-}
-