alchemy/common/irq.c

2  * Copyright 2001, 2007-2008 MontaVista Software Inc.
5  * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
25  *  675 Mass Ave, Cambridge, MA 02139, USA.
35 #include <asm/mach-au1x00/au1000.h>
36 #include <asm/mach-au1x00/gpio-au1300.h>
68 /* per-processor fixed function irqs */
83  * the USB devices-side packet complete interrupt (USB_DEV_REQ_INT)
118 	{ -1, },
151 	{ -1, },
186 	{ -1, },
218 	{ -1, },
245 	{ -1, },
283 	{ -1, },	/* terminator */
290 	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;  in au1x_ic0_unmask()
300 	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;  in au1x_ic1_unmask()
310 	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;  in au1x_ic0_mask()
320 	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;  in au1x_ic1_mask()
330 	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;  in au1x_ic0_ack()
344 	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;  in au1x_ic1_ack()
358 	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;  in au1x_ic0_maskack()
370 	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;  in au1x_ic1_maskack()
382 	int bit = d->irq - AU1000_INTC1_INT_BASE;  in au1x_ic1_setwake()
385 	/* only GPIO 0-7 can act as wakeup source.  Fortunately these  in au1x_ic1_setwake()
389 		return -EINVAL;  in au1x_ic1_setwake()
408 	.name		= "Alchemy-IC0",
417 	.name		= "Alchemy-IC1",
429 	unsigned int bit, irq = d->irq;  in au1x_ic_settype()
436 		bit = irq - AU1000_INTC1_INT_BASE;  in au1x_ic_settype()
440 		bit = irq - AU1000_INTC0_INT_BASE;  in au1x_ic_settype()
446 		return -EINVAL;  in au1x_ic_settype()
492 		ret = -EINVAL;  in au1x_ic_settype()
504  * au1300_gpic_chgcfg - change PIN configuration.
505  * @gpio:	pin to change (0-based GPIO number from datasheet).
528  * au1300_pinfunc_to_gpio - assign a pin as GPIO input (GPIO ctrl).
529  * @pin:	pin (0-based GPIO number from datasheet).
543  * au1300_pinfunc_to_dev - assign a pin to the device function.
544  * @pin:	pin (0-based GPIO number from datasheet).
562  * au1300_set_irq_priority -  set internal priority of IRQ.
568 	irq -= ALCHEMY_GPIC_INT_BASE;  in au1300_set_irq_priority()
574  * au1300_set_dbdma_gpio - assign a gpio to one of the DBDMA triggers.
603 	unsigned long bit, irq = d->irq;  in au1300_gpic_mask()
605 	irq -= ALCHEMY_GPIC_INT_BASE;  in au1300_gpic_mask()
617 	unsigned long bit, irq = d->irq;  in au1300_gpic_unmask()
619 	irq -= ALCHEMY_GPIC_INT_BASE;  in au1300_gpic_unmask()
632 	unsigned long bit, irq = d->irq;  in au1300_gpic_maskack()
634 	irq -= ALCHEMY_GPIC_INT_BASE;  in au1300_gpic_maskack()
647 	unsigned long bit, irq = d->irq;  in au1300_gpic_ack()
649 	irq -= ALCHEMY_GPIC_INT_BASE;  in au1300_gpic_ack()
703 		return -EINVAL;  in au1300_gpic_settype()
708 	au1300_gpic_chgcfg(d->irq - ALCHEMY_GPIC_INT_BASE, GPIC_CFG_IC_MASK, s);  in au1300_gpic_settype()
799 	/* save pin/int-type configuration */  in alchemy_gpic_suspend()
821 	/* restore pin/int-type configurations */  in alchemy_gpic_resume()
852 /* create chained handlers for the 4 IC requests to the MIPS IRQ ctrl */
900 	while (map->irq != -1) {  in au1000_init_irq()
901 		irq_nr = map->irq;  in au1000_init_irq()
904 			bit = irq_nr - AU1000_INTC1_INT_BASE;  in au1000_init_irq()
907 			bit = irq_nr - AU1000_INTC0_INT_BASE;  in au1000_init_irq()
910 		if (map->prio == 0)  in au1000_init_irq()
913 		au1x_ic_settype(irq_get_irq_data(irq_nr), map->type);  in au1000_init_irq()
946 	/* setup known on-chip sources */  in alchemy_gpic_init_irq()
947 	while ((i = dints->irq) != -1) {  in alchemy_gpic_init_irq()
948 		au1300_gpic_settype(irq_get_irq_data(i), dints->type);  in alchemy_gpic_init_irq()
949 		au1300_set_irq_priority(i, dints->prio);  in alchemy_gpic_init_irq()
951 		if (dints->internal)  in alchemy_gpic_init_irq()
952 			au1300_pinfunc_to_dev(i - ALCHEMY_GPIC_INT_BASE);  in alchemy_gpic_init_irq()