diff options
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64461.c')
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64461.c | 115 |
1 files changed, 25 insertions, 90 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c index f1a4a0763c59..27ceeb948bb1 100644 --- a/arch/sh/cchips/hd6446x/hd64461.c +++ b/arch/sh/cchips/hd6446x/hd64461.c @@ -10,99 +10,49 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/irq.h> -#include <asm/io.h> +#include <linux/io.h> #include <asm/irq.h> #include <asm/hd64461.h> /* This belongs in cpu specific */ #define INTC_ICR1 0xA4140010UL -static void disable_hd64461_irq(unsigned int irq) +static void hd64461_mask_irq(unsigned int irq) { unsigned short nimr; unsigned short mask = 1 << (irq - HD64461_IRQBASE); - nimr = inw(HD64461_NIMR); + nimr = __raw_readw(HD64461_NIMR); nimr |= mask; - outw(nimr, HD64461_NIMR); + __raw_writew(nimr, HD64461_NIMR); } -static void enable_hd64461_irq(unsigned int irq) +static void hd64461_unmask_irq(unsigned int irq) { unsigned short nimr; unsigned short mask = 1 << (irq - HD64461_IRQBASE); - nimr = inw(HD64461_NIMR); + nimr = __raw_readw(HD64461_NIMR); nimr &= ~mask; - outw(nimr, HD64461_NIMR); + __raw_writew(nimr, HD64461_NIMR); } -static void mask_and_ack_hd64461(unsigned int irq) +static void hd64461_mask_and_ack_irq(unsigned int irq) { - disable_hd64461_irq(irq); + hd64461_mask_irq(irq); #ifdef CONFIG_HD64461_ENABLER if (irq == HD64461_IRQBASE + 13) - outb(0x00, HD64461_PCC1CSCR); + __raw_writeb(0x00, HD64461_PCC1CSCR); #endif } -static void end_hd64461_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_hd64461_irq(irq); -} - -static unsigned int startup_hd64461_irq(unsigned int irq) -{ - enable_hd64461_irq(irq); - return 0; -} - -static void shutdown_hd64461_irq(unsigned int irq) -{ - disable_hd64461_irq(irq); -} - -static struct hw_interrupt_type hd64461_irq_type = { - .typename = "HD64461-IRQ", - .startup = startup_hd64461_irq, - .shutdown = shutdown_hd64461_irq, - .enable = enable_hd64461_irq, - .disable = disable_hd64461_irq, - .ack = mask_and_ack_hd64461, - .end = end_hd64461_irq, +static struct irq_chip hd64461_irq_chip = { + .name = "HD64461-IRQ", + .mask = hd64461_mask_irq, + .mask_ack = hd64461_mask_and_ack_irq, + .unmask = hd64461_unmask_irq, }; -static irqreturn_t hd64461_interrupt(int irq, void *dev_id) -{ - printk(KERN_INFO - "HD64461: spurious interrupt, nirr: 0x%x nimr: 0x%x\n", - inw(HD64461_NIRR), inw(HD64461_NIMR)); - - return IRQ_NONE; -} - -static struct { - int (*func) (int, void *); - void *dev; -} hd64461_demux[HD64461_IRQ_NUM]; - -void hd64461_register_irq_demux(int irq, - int (*demux) (int irq, void *dev), void *dev) -{ - hd64461_demux[irq - HD64461_IRQBASE].func = demux; - hd64461_demux[irq - HD64461_IRQBASE].dev = dev; -} - -EXPORT_SYMBOL(hd64461_register_irq_demux); - -void hd64461_unregister_irq_demux(int irq) -{ - hd64461_demux[irq - HD64461_IRQBASE].func = 0; -} - -EXPORT_SYMBOL(hd64461_unregister_irq_demux); - int hd64461_irq_demux(int irq) { if (irq == CONFIG_HD64461_IRQ) { @@ -115,25 +65,11 @@ int hd64461_irq_demux(int irq) for (bit = 1, i = 0; i < 16; bit <<= 1, i++) if (nirr & bit) break; - if (i == 16) - irq = CONFIG_HD64461_IRQ; - else { - irq = HD64461_IRQBASE + i; - if (hd64461_demux[i].func != 0) { - irq = hd64461_demux[i].func(irq, hd64461_demux[i].dev); - } - } + irq = HD64461_IRQBASE + i; } return irq; } -static struct irqaction irq0 = { - .handler = hd64461_interrupt, - .flags = IRQF_DISABLED, - .mask = CPU_MASK_NONE, - .name = "HD64461", -}; - int __init setup_hd64461(void) { int i; @@ -146,22 +82,21 @@ int __init setup_hd64461(void) CONFIG_HD64461_IOBASE, CONFIG_HD64461_IRQ, HD64461_IRQBASE, HD64461_IRQBASE + 15); -#if defined(CONFIG_CPU_SUBTYPE_SH7709) /* Should be at processor specific part.. */ - outw(0x2240, INTC_ICR1); +/* Should be at processor specific part.. */ +#if defined(CONFIG_CPU_SUBTYPE_SH7709) + __raw_writew(0x2240, INTC_ICR1); #endif - outw(0xffff, HD64461_NIMR); + __raw_writew(0xffff, HD64461_NIMR); /* IRQ 80 -> 95 belongs to HD64461 */ - for (i = HD64461_IRQBASE; i < HD64461_IRQBASE + 16; i++) { - irq_desc[i].chip = &hd64461_irq_type; - } - - setup_irq(CONFIG_HD64461_IRQ, &irq0); + for (i = HD64461_IRQBASE; i < HD64461_IRQBASE + 16; i++) + set_irq_chip_and_handler(i, &hd64461_irq_chip, + handle_level_irq); #ifdef CONFIG_HD64461_ENABLER printk(KERN_INFO "HD64461: enabling PCMCIA devices\n"); - outb(0x4c, HD64461_PCC1CSCIER); - outb(0x00, HD64461_PCC1CSCR); + __raw_writeb(0x4c, HD64461_PCC1CSCIER); + __raw_writeb(0x00, HD64461_PCC1CSCR); #endif return 0; |