示例#1
0
static void ami_int3(int irq, void *dev_id, struct pt_regs *fp)
{
	unsigned short ints = custom.intreqr & custom.intenar;
	static struct irq_server server = {0, 0};

	/* if a blitter interrupt */
	if (ints & IF_BLIT) {
		custom.intreq = IF_BLIT;
		amiga_do_irq(IRQ_IDX(IRQ_AMIGA_BLIT), fp);
	}

	/* if a copper interrupt */
	if (ints & IF_COPER) {
		custom.intreq = IF_COPER;
		amiga_do_irq(IRQ_IDX(IRQ_AMIGA_COPPER), fp);
	}

	/* if a vertical blank interrupt */
	if (ints & IF_VERTB)
		amiga_do_irq_list(IRQ_IDX(IRQ_AMIGA_VERTB), fp, &server);
}
示例#2
0
void baboon_irq_disable(int irq)
{
	int irq_idx = IRQ_IDX(irq);

#ifdef DEBUG_IRQUSE
	printk("baboon_irq_disable(%d)\n", irq);
#endif

	baboon_disabled |= 1 << irq_idx;
	if (baboon_disabled)
		mac_disable_irq(IRQ_NUBUS_C);
}
示例#3
0
文件: via.c 项目: 12019/hg556a_source
void via_irq_enable(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

#ifdef DEBUG_IRQUSE
	printk(KERN_DEBUG "via_irq_enable(%d)\n", irq);
#endif

	if (irq_src == 1) {
		via1[vIER] = irq_bit | 0x80;
	} else if (irq_src == 2) {
		/*
		 * Set vPCR for SCSI interrupts (but not on RBV)
		 */
		if ((irq_idx == 0) && !rbv_present) {
			if (macintosh_config->scsi_type == MAC_SCSI_OLD) {
				/* CB2 (IRQ) indep. input, positive edge */
				/* CA2 (DRQ) indep. input, positive edge */
				via2[vPCR] = 0x66;
			} else {
				/* CB2 (IRQ) indep. input, negative edge */
				/* CA2 (DRQ) indep. input, negative edge */
				via2[vPCR] = 0x22;
			}
		}
		via2[gIER] = irq_bit | 0x80;
	} else if (irq_src == 7) {
		if (rbv_present) {
			/* enable the slot interrupt. SIER works like IER. */
			via2[rSIER] = IER_SET_BIT(irq_idx);
		} else {
			/* Make sure the bit is an input, to enable the irq */
			/* But not on PowerBooks, that's ADB... */
			if ((macintosh_config->adb_type != MAC_ADB_PB1) &&
			   (macintosh_config->adb_type != MAC_ADB_PB2)) {
				switch(macintosh_config->ident)
				{
					case MAC_MODEL_II:
					case MAC_MODEL_IIX:
					case MAC_MODEL_IICX:
					case MAC_MODEL_SE30:
						via2[vDirA] &= (~irq_bit | 0xc0);
						break;
					default:
						via2[vDirA] &= ~irq_bit;
				}
			}
		}
		nubus_active |= irq_bit;
	}
}
示例#4
0
static void ami_int1(int irq, void *dev_id, struct pt_regs *fp)
{
	unsigned short ints = custom.intreqr & custom.intenar;

	/* if serial transmit buffer empty, interrupt */
	if (ints & IF_TBE) {
		custom.intreq = IF_TBE;
		amiga_do_irq(IRQ_IDX(IRQ_AMIGA_TBE), fp);
	}

	/* if floppy disk transfer complete, interrupt */
	if (ints & IF_DSKBLK) {
		custom.intreq = IF_DSKBLK;
		amiga_do_irq(IRQ_IDX(IRQ_AMIGA_DSKBLK), fp);
	}

	/* if software interrupt set, interrupt */
	if (ints & IF_SOFT) {
		custom.intreq = IF_SOFT;
		amiga_do_irq(IRQ_IDX(IRQ_AMIGA_SOFT), fp);
	}
}
示例#5
0
文件: via.c 项目: TitaniumBoy/lin
void via_irq_clear(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

	if (irq_src == 1) {
		via1[vIFR] = irq_bit;
	} else if (irq_src == 2) {
		via2[gIFR] = irq_bit | rbv_clear;
	} else if (irq_src == 7) {
		/* FIXME: hmm.. */
	}
}
示例#6
0
void amiga_disable_irq(unsigned int irq)
{
	if (irq >= AMI_IRQS) {
		printk("%s: Unknown IRQ %d\n", __FUNCTION__, irq);
		return;
	}

	if (ami_ablecount[irq]++)
		return;

	if (irq >= IRQ_IDX(IRQ_AMIGA_CIAB)) {
		cia_able_irq(&ciab_base, 1 << (irq - IRQ_IDX(IRQ_AMIGA_CIAB)));
		return;
	}

	if (irq >= IRQ_IDX(IRQ_AMIGA_CIAA)) {
		cia_able_irq(&ciaa_base, 1 << (irq - IRQ_IDX(IRQ_AMIGA_CIAA)));
		return;
	}

	/* disable the interrupt */
	custom.intena = ami_intena_vals[irq];
}
示例#7
0
文件: via.c 项目: TitaniumBoy/lin
int via_irq_pending(int irq)
{
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

	if (irq_src == 1) {
		return via1[vIFR] & irq_bit;
	} else if (irq_src == 2) {
		return via2[gIFR] & irq_bit;
	} else if (irq_src == 7) {
		return ~via2[gBufA] & irq_bit;
	}
	return 0;
}
示例#8
0
void via_irq_clear(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

	if (irq_src == 1) {
		via1[vIFR] = irq_bit;
	} else if (irq_src == 2) {
		via2[gIFR] = irq_bit | rbv_clear;
	} else if (irq_src == 7) {
		/* FIXME: There is no way to clear an individual nubus slot
		 * IRQ flag, other than getting the device to do it.
		 */
	}
}
示例#9
0
int via_irq_pending(int irq)
{
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

	if (irq_src == 1) {
		return via1[vIFR] & irq_bit;
	} else if (irq_src == 2) {
		return via2[gIFR] & irq_bit;
	} else if (irq_src == 7) {
		/* Always 0 for MAC_VIA_QUADRA if the slot irq is disabled. */
		return ~via2[gBufA] & irq_bit;
	}
	return 0;
}
示例#10
0
文件: via.c 项目: 03199618/linux
void via_nubus_irq_startup(int irq)
{
	int irq_idx = IRQ_IDX(irq);

	switch (macintosh_config->via_type) {
	case MAC_VIA_II:
	case MAC_VIA_QUADRA:
		/* Make the port A line an input. Probably redundant. */
		if (macintosh_config->via_type == MAC_VIA_II) {
			/* The top two bits are RAM size outputs. */
			via2[vDirA] &= 0xC0 | ~(1 << irq_idx);
		} else {
			/* Allow NuBus slots 9 through F. */
			via2[vDirA] &= 0x80 | ~(1 << irq_idx);
		}
		/* fall through */
	case MAC_VIA_IICI:
		via_irq_enable(irq);
		break;
	}
}
示例#11
0
int request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
                unsigned long flags, const char *devname, void *dev_id)
{
    if ((irq & IRQ_MACHSPEC) && mach_request_irq) {
        return mach_request_irq(IRQ_IDX(irq), handler, flags,
                                devname, dev_id);
    }

    if (irq < 0 || irq >= NR_IRQS) {
        printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__,
               irq, devname);
        return -ENXIO;
    }

    if (!(vec_list[irq].flags & IRQ_FLG_STD)) {
        if (vec_list[irq].flags & IRQ_FLG_LOCK) {
            printk("%s: IRQ %d from %s is not replaceable\n",
                   __FUNCTION__, irq, vec_list[irq].devname);
            return -EBUSY;
        }
        if (flags & IRQ_FLG_REPLACE) {
            printk("%s: %s can't replace IRQ %d from %s\n",
                   __FUNCTION__, devname, irq, vec_list[irq].devname);
            return -EBUSY;
        }
    }

    if (flags & IRQ_FLG_FAST) {
        extern asmlinkage void fasthandler(void);
        extern void set_evector(int vecnum, void (*handler)(void));
        set_evector(irq, fasthandler);
    }

    vec_list[irq].handler = handler;
    vec_list[irq].flags   = flags;
    vec_list[irq].dev_id  = dev_id;
    vec_list[irq].devname = devname;
    return 0;
}
示例#12
0
文件: via.c 项目: 0x7f454c46/linux
void via_irq_disable(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);

	if (irq_src == 1) {
		via1[vIER] = IER_CLR_BIT(irq_idx);
	} else if (irq_src == 2) {
		via2[gIER] = IER_CLR_BIT(irq_idx);
	} else if (irq_src == 7) {
		switch (macintosh_config->via_type) {
		case MAC_VIA_II:
		case MAC_VIA_QUADRA:
			nubus_disabled |= 1 << irq_idx;
			if (nubus_disabled)
				via2[gIER] = IER_CLR_BIT(1);
			break;
		case MAC_VIA_IICI:
			via2[rSIER] = IER_CLR_BIT(irq_idx);
			break;
		}
	}
}
示例#13
0
文件: via.c 项目: TitaniumBoy/lin
void via_irq_enable(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

#ifdef DEBUG_IRQUSE
	printk("via_irq_enable(%d)\n", irq);
#endif

	if (irq_src == 1) {
		via1[vIER] = irq_bit | 0x80;
	} else if (irq_src == 2) {
		/*
		 * Set vPCR for SCSI interrupts (but not on RBV)
		 */
		if ((irq_idx == 0) && !rbv_present) {
			if (macintosh_config->scsi_type == MAC_SCSI_OLD) {
				/* CB2 (IRQ) indep. input, positive edge */
				/* CA2 (DRQ) indep. input, positive edge */
				via2[vPCR] = 0x66;
			} else {
				/* CB2 (IRQ) indep. input, negative edge */
				/* CA2 (DRQ) indep. input, negative edge */
				via2[vPCR] = 0x22;
			}
		}
		via2[gIER] = irq_bit | 0x80;
	} else if (irq_src == 7) {
		if (rbv_present) {
			/* enable the slot interrupt. SIER works like IER. */
			via2[rSIER] = IER_SET_BIT(irq_idx);
		} else {
			/* Make sure the bit is an input, to enable the irq */
			via2[vDirA] &= ~irq_bit;
		}
		nubus_active |= irq_bit;
	}
}
示例#14
0
void via_irq_enable(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);

#ifdef DEBUG_IRQUSE
	printk(KERN_DEBUG "via_irq_enable(%d)\n", irq);
#endif

	if (irq_src == 1) {
		via1[vIER] = IER_SET_BIT(irq_idx);
	} else if (irq_src == 2) {
		if (irq != IRQ_MAC_NUBUS || nubus_disabled == 0)
			via2[gIER] = IER_SET_BIT(irq_idx);
	} else if (irq_src == 7) {
		switch (macintosh_config->via_type) {
		case MAC_VIA_II:
			nubus_disabled &= ~(1 << irq_idx);
			/* Enable the CA1 interrupt when no slot is disabled. */
			if (!nubus_disabled)
				via2[gIER] = IER_SET_BIT(1);
			break;
		case MAC_VIA_IIci:
			/* On RBV, enable the slot interrupt.
			 * SIER works like IER.
			 */
			via2[rSIER] = IER_SET_BIT(irq_idx);
			break;
		case MAC_VIA_QUADRA:
			/* Make the port A line an input to enable the slot irq.
			 * But not on PowerBooks, that's ADB.
			 */
			if ((macintosh_config->adb_type != MAC_ADB_PB1) &&
			    (macintosh_config->adb_type != MAC_ADB_PB2))
				via2[vDirA] &= ~(1 << irq_idx);
			break;
		}
	}
}
示例#15
0
文件: via.c 项目: TitaniumBoy/lin
void via_irq_disable(int irq) {
	int irq_src	= IRQ_SRC(irq);
	int irq_idx	= IRQ_IDX(irq);
	int irq_bit	= 1 << irq_idx;

#ifdef DEBUG_IRQUSE
	printk("via_irq_disable(%d)\n", irq);
#endif

	if (irq_src == 1) {
		via1[vIER] = irq_bit;
	} else if (irq_src == 2) {
		via2[gIER] = irq_bit;
	} else if (irq_src == 7) {
		if (rbv_present) {
			/* disable the slot interrupt.  SIER works like IER. */
			via2[rSIER] = IER_CLR_BIT(irq_idx);
		} else {
			/* disable the nubus irq by changing dir to output */
			via2[vDirA] |= irq_bit;
		}
		nubus_active &= ~irq_bit;
	}
}
示例#16
0
void free_irq(unsigned int irq, void *dev_id)
{
	if (irq & IRQ_MACHSPEC) {
		mach_free_irq(IRQ_IDX(irq), dev_id);
		return;
	}

	if (irq < IRQ1 || irq > IRQ7) {
		printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
		return;
	}

	if (irq_list[irq].dev_id != dev_id)
		printk("%s: Removing probably wrong IRQ %d from %s\n",
		       __FUNCTION__, irq, irq_list[irq].devname);

	if (mach_default_handler)
		irq_list[irq].handler = (*mach_default_handler)[irq];
	else
		irq_list[irq].handler = NULL;
	irq_list[irq].flags   = IRQ_FLG_STD;
	irq_list[irq].dev_id  = NULL;
	irq_list[irq].devname = default_names[irq];
}
示例#17
0
static void scc_irq_disable(int irq) {
	int irq_idx     = IRQ_IDX(irq);

	scc_mask &= ~(1 << irq_idx);
}
示例#18
0
static void scc_irq_enable(int irq) {
	int irq_idx     = IRQ_IDX(irq);

	scc_mask |= (1 << irq_idx);
}
示例#19
0
void disable_irq(unsigned int irq)
{
	if ((irq & IRQ_MACHSPEC) && mach_disable_irq)
		mach_disable_irq(IRQ_IDX(irq));
}
示例#20
0
int baboon_irq_pending(int irq)
{
	int irq_idx	= IRQ_IDX(irq);

	return baboon->mb_ifr & (1 << irq_idx);
}
示例#21
0
void baboon_irq_clear(int irq) {
	int irq_idx	= IRQ_IDX(irq);

	baboon->mb_ifr &= ~(1 << irq_idx);
}
示例#22
0
文件: via.c 项目: 03199618/linux
int via2_scsi_drq_pending(void)
{
	return via2[gIFR] & (1 << IRQ_IDX(IRQ_MAC_SCSIDRQ));
}