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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/apollo/dn_ints.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/m68k/apollo/dn_ints.c')
-rw-r--r-- | arch/m68k/apollo/dn_ints.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c new file mode 100644 index 000000000000..a31259359a12 --- /dev/null +++ b/arch/m68k/apollo/dn_ints.c @@ -0,0 +1,125 @@ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/jiffies.h> +#include <linux/kernel_stat.h> +#include <linux/timer.h> + +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/page.h> +#include <asm/machdep.h> +#include <asm/apollohw.h> +#include <asm/errno.h> + +static irq_handler_t dn_irqs[16]; + +irqreturn_t dn_process_int(int irq, struct pt_regs *fp) +{ + irqreturn_t res = IRQ_NONE; + + if(dn_irqs[irq-160].handler) { + res = dn_irqs[irq-160].handler(irq,dn_irqs[irq-160].dev_id,fp); + } else { + printk("spurious irq %d occurred\n",irq); + } + + *(volatile unsigned char *)(pica)=0x20; + *(volatile unsigned char *)(picb)=0x20; + + return res; +} + +void dn_init_IRQ(void) { + + int i; + + for(i=0;i<16;i++) { + dn_irqs[i].handler=NULL; + dn_irqs[i].flags=IRQ_FLG_STD; + dn_irqs[i].dev_id=NULL; + dn_irqs[i].devname=NULL; + } + +} + +int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id) { + + if((irq<0) || (irq>15)) { + printk("Trying to request invalid IRQ\n"); + return -ENXIO; + } + + if(!dn_irqs[irq].handler) { + dn_irqs[irq].handler=handler; + dn_irqs[irq].flags=IRQ_FLG_STD; + dn_irqs[irq].dev_id=dev_id; + dn_irqs[irq].devname=devname; + if(irq<8) + *(volatile unsigned char *)(pica+1)&=~(1<<irq); + else + *(volatile unsigned char *)(picb+1)&=~(1<<(irq-8)); + + return 0; + } + else { + printk("Trying to request already assigned irq %d\n",irq); + return -ENXIO; + } + +} + +void dn_free_irq(unsigned int irq, void *dev_id) { + + if((irq<0) || (irq>15)) { + printk("Trying to free invalid IRQ\n"); + return ; + } + + if(irq<8) + *(volatile unsigned char *)(pica+1)|=(1<<irq); + else + *(volatile unsigned char *)(picb+1)|=(1<<(irq-8)); + + dn_irqs[irq].handler=NULL; + dn_irqs[irq].flags=IRQ_FLG_STD; + dn_irqs[irq].dev_id=NULL; + dn_irqs[irq].devname=NULL; + + return ; + +} + +void dn_enable_irq(unsigned int irq) { + + printk("dn enable irq\n"); + +} + +void dn_disable_irq(unsigned int irq) { + + printk("dn disable irq\n"); + +} + +int show_dn_interrupts(struct seq_file *p, void *v) { + + printk("dn get irq list\n"); + + return 0; + +} + +struct fb_info *dn_dummy_fb_init(long *mem_start) { + + printk("fb init\n"); + + return NULL; + +} + +void dn_dummy_video_setup(char *options,int *ints) { + + printk("no video yet\n"); + +} |