edbaa603eb
The sysdev.h file should not be needed by any in-kernel code, so remove the .h file from these random files that seem to still want to include it. The sysdev code will be going away soon, so this include needs to be removed no matter what. Cc: Jiandong Zheng <jdzheng@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: "Venkatesh Pallipadi Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
177 lines
4.2 KiB
C
177 lines
4.2 KiB
C
/*
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* arch/arm/mach-ks8695/irq.c
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*
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* Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
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* Copyright (C) 2006 Simtec Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/mach/irq.h>
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#include <mach/regs-irq.h>
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#include <mach/regs-gpio.h>
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static void ks8695_irq_mask(struct irq_data *d)
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{
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unsigned long inten;
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inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN);
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inten &= ~(1 << d->irq);
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__raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN);
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}
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static void ks8695_irq_unmask(struct irq_data *d)
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{
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unsigned long inten;
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inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN);
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inten |= (1 << d->irq);
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__raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN);
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}
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static void ks8695_irq_ack(struct irq_data *d)
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{
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__raw_writel((1 << d->irq), KS8695_IRQ_VA + KS8695_INTST);
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}
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static struct irq_chip ks8695_irq_level_chip;
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static struct irq_chip ks8695_irq_edge_chip;
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static int ks8695_irq_set_type(struct irq_data *d, unsigned int type)
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{
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unsigned long ctrl, mode;
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unsigned short level_triggered = 0;
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ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC);
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switch (type) {
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case IRQ_TYPE_LEVEL_HIGH:
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mode = IOPC_TM_HIGH;
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level_triggered = 1;
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break;
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case IRQ_TYPE_LEVEL_LOW:
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mode = IOPC_TM_LOW;
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level_triggered = 1;
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break;
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case IRQ_TYPE_EDGE_RISING:
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mode = IOPC_TM_RISING;
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break;
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case IRQ_TYPE_EDGE_FALLING:
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mode = IOPC_TM_FALLING;
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break;
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case IRQ_TYPE_EDGE_BOTH:
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mode = IOPC_TM_EDGE;
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break;
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default:
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return -EINVAL;
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}
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switch (d->irq) {
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case KS8695_IRQ_EXTERN0:
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ctrl &= ~IOPC_IOEINT0TM;
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ctrl |= IOPC_IOEINT0_MODE(mode);
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break;
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case KS8695_IRQ_EXTERN1:
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ctrl &= ~IOPC_IOEINT1TM;
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ctrl |= IOPC_IOEINT1_MODE(mode);
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break;
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case KS8695_IRQ_EXTERN2:
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ctrl &= ~IOPC_IOEINT2TM;
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ctrl |= IOPC_IOEINT2_MODE(mode);
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break;
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case KS8695_IRQ_EXTERN3:
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ctrl &= ~IOPC_IOEINT3TM;
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ctrl |= IOPC_IOEINT3_MODE(mode);
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break;
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default:
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return -EINVAL;
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}
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if (level_triggered) {
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irq_set_chip_and_handler(d->irq, &ks8695_irq_level_chip,
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handle_level_irq);
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}
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else {
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irq_set_chip_and_handler(d->irq, &ks8695_irq_edge_chip,
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handle_edge_irq);
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}
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__raw_writel(ctrl, KS8695_GPIO_VA + KS8695_IOPC);
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return 0;
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}
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static struct irq_chip ks8695_irq_level_chip = {
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.irq_ack = ks8695_irq_mask,
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.irq_mask = ks8695_irq_mask,
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.irq_unmask = ks8695_irq_unmask,
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.irq_set_type = ks8695_irq_set_type,
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};
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static struct irq_chip ks8695_irq_edge_chip = {
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.irq_ack = ks8695_irq_ack,
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.irq_mask = ks8695_irq_mask,
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.irq_unmask = ks8695_irq_unmask,
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.irq_set_type = ks8695_irq_set_type,
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};
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void __init ks8695_init_irq(void)
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{
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unsigned int irq;
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/* Disable all interrupts initially */
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__raw_writel(0, KS8695_IRQ_VA + KS8695_INTMC);
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__raw_writel(0, KS8695_IRQ_VA + KS8695_INTEN);
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for (irq = 0; irq < NR_IRQS; irq++) {
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switch (irq) {
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/* Level-triggered interrupts */
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case KS8695_IRQ_BUS_ERROR:
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case KS8695_IRQ_UART_MODEM_STATUS:
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case KS8695_IRQ_UART_LINE_STATUS:
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case KS8695_IRQ_UART_RX:
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case KS8695_IRQ_COMM_TX:
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case KS8695_IRQ_COMM_RX:
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irq_set_chip_and_handler(irq,
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&ks8695_irq_level_chip,
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handle_level_irq);
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break;
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/* Edge-triggered interrupts */
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default:
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/* clear pending bit */
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ks8695_irq_ack(irq_get_irq_data(irq));
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irq_set_chip_and_handler(irq,
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&ks8695_irq_edge_chip,
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handle_edge_irq);
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}
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set_irq_flags(irq, IRQF_VALID);
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}
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}
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