diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-ks8695/irq.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-ks8695/irq.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-ks8695/irq.c b/ANDROID_3.4.5/arch/arm/mach-ks8695/irq.c deleted file mode 100644 index 76802aac..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-ks8695/irq.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * arch/arm/mach-ks8695/irq.c - * - * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> - * Copyright (C) 2006 Simtec Electronics - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/device.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <asm/irq.h> - -#include <asm/mach/irq.h> - -#include <mach/regs-irq.h> -#include <mach/regs-gpio.h> - -static void ks8695_irq_mask(struct irq_data *d) -{ - unsigned long inten; - - inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN); - inten &= ~(1 << d->irq); - - __raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN); -} - -static void ks8695_irq_unmask(struct irq_data *d) -{ - unsigned long inten; - - inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN); - inten |= (1 << d->irq); - - __raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN); -} - -static void ks8695_irq_ack(struct irq_data *d) -{ - __raw_writel((1 << d->irq), KS8695_IRQ_VA + KS8695_INTST); -} - - -static struct irq_chip ks8695_irq_level_chip; -static struct irq_chip ks8695_irq_edge_chip; - - -static int ks8695_irq_set_type(struct irq_data *d, unsigned int type) -{ - unsigned long ctrl, mode; - unsigned short level_triggered = 0; - - ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC); - - switch (type) { - case IRQ_TYPE_LEVEL_HIGH: - mode = IOPC_TM_HIGH; - level_triggered = 1; - break; - case IRQ_TYPE_LEVEL_LOW: - mode = IOPC_TM_LOW; - level_triggered = 1; - break; - case IRQ_TYPE_EDGE_RISING: - mode = IOPC_TM_RISING; - break; - case IRQ_TYPE_EDGE_FALLING: - mode = IOPC_TM_FALLING; - break; - case IRQ_TYPE_EDGE_BOTH: - mode = IOPC_TM_EDGE; - break; - default: - return -EINVAL; - } - - switch (d->irq) { - case KS8695_IRQ_EXTERN0: - ctrl &= ~IOPC_IOEINT0TM; - ctrl |= IOPC_IOEINT0_MODE(mode); - break; - case KS8695_IRQ_EXTERN1: - ctrl &= ~IOPC_IOEINT1TM; - ctrl |= IOPC_IOEINT1_MODE(mode); - break; - case KS8695_IRQ_EXTERN2: - ctrl &= ~IOPC_IOEINT2TM; - ctrl |= IOPC_IOEINT2_MODE(mode); - break; - case KS8695_IRQ_EXTERN3: - ctrl &= ~IOPC_IOEINT3TM; - ctrl |= IOPC_IOEINT3_MODE(mode); - break; - default: - return -EINVAL; - } - - if (level_triggered) { - irq_set_chip_and_handler(d->irq, &ks8695_irq_level_chip, - handle_level_irq); - } - else { - irq_set_chip_and_handler(d->irq, &ks8695_irq_edge_chip, - handle_edge_irq); - } - - __raw_writel(ctrl, KS8695_GPIO_VA + KS8695_IOPC); - return 0; -} - -static struct irq_chip ks8695_irq_level_chip = { - .irq_ack = ks8695_irq_mask, - .irq_mask = ks8695_irq_mask, - .irq_unmask = ks8695_irq_unmask, - .irq_set_type = ks8695_irq_set_type, -}; - -static struct irq_chip ks8695_irq_edge_chip = { - .irq_ack = ks8695_irq_ack, - .irq_mask = ks8695_irq_mask, - .irq_unmask = ks8695_irq_unmask, - .irq_set_type = ks8695_irq_set_type, -}; - -void __init ks8695_init_irq(void) -{ - unsigned int irq; - - /* Disable all interrupts initially */ - __raw_writel(0, KS8695_IRQ_VA + KS8695_INTMC); - __raw_writel(0, KS8695_IRQ_VA + KS8695_INTEN); - - for (irq = 0; irq < NR_IRQS; irq++) { - switch (irq) { - /* Level-triggered interrupts */ - case KS8695_IRQ_BUS_ERROR: - case KS8695_IRQ_UART_MODEM_STATUS: - case KS8695_IRQ_UART_LINE_STATUS: - case KS8695_IRQ_UART_RX: - case KS8695_IRQ_COMM_TX: - case KS8695_IRQ_COMM_RX: - irq_set_chip_and_handler(irq, - &ks8695_irq_level_chip, - handle_level_irq); - break; - - /* Edge-triggered interrupts */ - default: - /* clear pending bit */ - ks8695_irq_ack(irq_get_irq_data(irq)); - irq_set_chip_and_handler(irq, - &ks8695_irq_edge_chip, - handle_edge_irq); - } - - set_irq_flags(irq, IRQF_VALID); - } -} |