diff options
Diffstat (limited to 'arch/arm/mach-ebsa110')
-rw-r--r-- | arch/arm/mach-ebsa110/Makefile | 4 | ||||
-rw-r--r-- | arch/arm/mach-ebsa110/core.c | 8 | ||||
-rw-r--r-- | arch/arm/mach-ebsa110/core.h | 12 | ||||
-rw-r--r-- | arch/arm/mach-ebsa110/leds.c | 81 |
4 files changed, 61 insertions, 44 deletions
diff --git a/arch/arm/mach-ebsa110/Makefile b/arch/arm/mach-ebsa110/Makefile index 6520ac835802..935e4af01a27 100644 --- a/arch/arm/mach-ebsa110/Makefile +++ b/arch/arm/mach-ebsa110/Makefile @@ -4,9 +4,7 @@ # Object file lists. -obj-y := core.o io.o +obj-y := core.o io.o leds.o obj-m := obj-n := obj- := - -obj-$(CONFIG_LEDS) += leds.o diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c index 6f8068692edf..f0fe6b5350e2 100644 --- a/arch/arm/mach-ebsa110/core.c +++ b/arch/arm/mach-ebsa110/core.c @@ -74,22 +74,22 @@ static struct map_desc ebsa110_io_desc[] __initdata = { * sparse external-decode ISAIO space */ { /* IRQ_STAT/IRQ_MCLR */ - .virtual = IRQ_STAT, + .virtual = (unsigned long)IRQ_STAT, .pfn = __phys_to_pfn(TRICK4_PHYS), .length = TRICK4_SIZE, .type = MT_DEVICE }, { /* IRQ_MASK/IRQ_MSET */ - .virtual = IRQ_MASK, + .virtual = (unsigned long)IRQ_MASK, .pfn = __phys_to_pfn(TRICK3_PHYS), .length = TRICK3_SIZE, .type = MT_DEVICE }, { /* SOFT_BASE */ - .virtual = SOFT_BASE, + .virtual = (unsigned long)SOFT_BASE, .pfn = __phys_to_pfn(TRICK1_PHYS), .length = TRICK1_SIZE, .type = MT_DEVICE }, { /* PIT_BASE */ - .virtual = PIT_BASE, + .virtual = (unsigned long)PIT_BASE, .pfn = __phys_to_pfn(TRICK0_PHYS), .length = TRICK0_SIZE, .type = MT_DEVICE diff --git a/arch/arm/mach-ebsa110/core.h b/arch/arm/mach-ebsa110/core.h index c93c9e43012d..afe137ee172e 100644 --- a/arch/arm/mach-ebsa110/core.h +++ b/arch/arm/mach-ebsa110/core.h @@ -31,11 +31,11 @@ #define TRICK7_PHYS 0xf3c00000 /* Virtual addresses */ -#define PIT_BASE 0xfc000000 /* trick 0 */ -#define SOFT_BASE 0xfd000000 /* trick 1 */ -#define IRQ_MASK 0xfe000000 /* trick 3 - read */ -#define IRQ_MSET 0xfe000000 /* trick 3 - write */ -#define IRQ_STAT 0xff000000 /* trick 4 - read */ -#define IRQ_MCLR 0xff000000 /* trick 4 - write */ +#define PIT_BASE IOMEM(0xfc000000) /* trick 0 */ +#define SOFT_BASE IOMEM(0xfd000000) /* trick 1 */ +#define IRQ_MASK IOMEM(0xfe000000) /* trick 3 - read */ +#define IRQ_MSET IOMEM(0xfe000000) /* trick 3 - write */ +#define IRQ_STAT IOMEM(0xff000000) /* trick 4 - read */ +#define IRQ_MCLR IOMEM(0xff000000) /* trick 4 - write */ #endif diff --git a/arch/arm/mach-ebsa110/leds.c b/arch/arm/mach-ebsa110/leds.c index 99e14e362500..0398258c20cd 100644 --- a/arch/arm/mach-ebsa110/leds.c +++ b/arch/arm/mach-ebsa110/leds.c @@ -1,52 +1,71 @@ /* - * linux/arch/arm/mach-ebsa110/leds.c + * Driver for the LED found on the EBSA110 machine + * Based on Versatile and RealView machine LED code * - * Copyright (C) 1998 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * EBSA-110 LED control routines. We use the led as follows: - * - * - Red - toggles state every 50 timer interrupts + * License terms: GNU General Public License (GPL) version 2 + * Author: Bryan Wu <bryan.wu@canonical.com> */ -#include <linux/module.h> -#include <linux/spinlock.h> +#include <linux/kernel.h> #include <linux/init.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/leds.h> -#include <mach/hardware.h> -#include <asm/leds.h> #include <asm/mach-types.h> #include "core.h" -static spinlock_t leds_lock; - -static void ebsa110_leds_event(led_event_t ledevt) +#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) +static void ebsa110_led_set(struct led_classdev *cdev, + enum led_brightness b) { - unsigned long flags; + u8 reg = __raw_readb(SOFT_BASE); - spin_lock_irqsave(&leds_lock, flags); + if (b != LED_OFF) + reg |= 0x80; + else + reg &= ~0x80; - switch(ledevt) { - case led_timer: - *(volatile unsigned char *)SOFT_BASE ^= 128; - break; + __raw_writeb(reg, SOFT_BASE); +} - default: - break; - } +static enum led_brightness ebsa110_led_get(struct led_classdev *cdev) +{ + u8 reg = __raw_readb(SOFT_BASE); - spin_unlock_irqrestore(&leds_lock, flags); + return (reg & 0x80) ? LED_FULL : LED_OFF; } -static int __init leds_init(void) +static int __init ebsa110_leds_init(void) { - if (machine_is_ebsa110()) - leds_event = ebsa110_leds_event; + + struct led_classdev *cdev; + int ret; + + if (!machine_is_ebsa110()) + return -ENODEV; + + cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); + if (!cdev) + return -ENOMEM; + + cdev->name = "ebsa110:0"; + cdev->brightness_set = ebsa110_led_set; + cdev->brightness_get = ebsa110_led_get; + cdev->default_trigger = "heartbeat"; + + ret = led_classdev_register(NULL, cdev); + if (ret < 0) { + kfree(cdev); + return ret; + } return 0; } -__initcall(leds_init); +/* + * Since we may have triggers on any subsystem, defer registration + * until after subsystem_init. + */ +fs_initcall(ebsa110_leds_init); +#endif |