diff options
Diffstat (limited to 'packages/linux/nslu2-kernel/2.6.14/75-nslu2-leds.patch')
| -rw-r--r-- | packages/linux/nslu2-kernel/2.6.14/75-nslu2-leds.patch | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/packages/linux/nslu2-kernel/2.6.14/75-nslu2-leds.patch b/packages/linux/nslu2-kernel/2.6.14/75-nslu2-leds.patch new file mode 100644 index 0000000000..2701c012f3 --- /dev/null +++ b/packages/linux/nslu2-kernel/2.6.14/75-nslu2-leds.patch @@ -0,0 +1,267 @@ +--- linux-2.6.13/.pc/75-nslu2-leds.patch/arch/arm/Kconfig 2005-10-26 15:19:34.490925838 -0700 ++++ linux-2.6.13/arch/arm/Kconfig 2005-10-26 15:24:18.628805508 -0700 +@@ -389,7 +389,8 @@ config LEDS + ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \ + ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ + ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ +- ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE ++ ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ ++ MACH_NSLU2 + help + If you say Y here, the LEDs on your machine will be used + to provide useful information about your current system status. +@@ -403,7 +404,7 @@ config LEDS + + config LEDS_TIMER + bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ +- MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 ++ MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 || MACH_NSLU2 + depends on LEDS + default y if ARCH_EBSA110 + help +@@ -419,7 +420,8 @@ config LEDS_TIMER + + config LEDS_CPU + bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ +- !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 ++ !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 \ ++ || MACH_NSLU2 + depends on LEDS + help + If you say Y here, the red LED will be used to give a good real +--- linux-2.6.13/.pc/75-nslu2-leds.patch/arch/arm/mach-ixp4xx/Makefile 2005-10-26 15:19:43.979522918 -0700 ++++ linux-2.6.13/arch/arm/mach-ixp4xx/Makefile 2005-10-26 15:24:18.632805759 -0700 +@@ -10,3 +10,7 @@ obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote- + obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o + obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o nslu2-rtc.o nslu2-io.o + ++leds-$(CONFIG_MACH_NSLU2) += nslu2-leds.o ++obj-$(CONFIG_LEDS) += $(leds-y) ++ ++ +--- linux-2.6.13/.pc/75-nslu2-leds.patch/arch/arm/mach-ixp4xx/nslu2-leds.c 2005-10-26 15:19:44.251540035 -0700 ++++ linux-2.6.13/arch/arm/mach-ixp4xx/nslu2-leds.c 2005-10-26 15:24:18.632805759 -0700 +@@ -0,0 +1,223 @@ ++/* ++ * arch/arm/mach-ixp4xx/nslu2-leds.c ++ * ++ * NSLU2 LEDs driver ++ * ++ * Copyright (C) 2005 Tower Technologies ++ * ++ * based on nslu2-io.c ++ * Copyright (C) 2004 Karen Spearel ++ * and arch/arm/mach-footbridge/netwinder-leds.c ++ * Copyright (C) 1998-1999 Russell King ++ * ++ * Author: Alessandro Zummo <a.zummo@towertech.it> ++ * Maintainers: http://www.nslu2-linux.org/ ++ * ++ * 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. ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/spinlock.h> ++#include <linux/notifier.h> ++ ++#include <asm/hardware.h> ++#include <asm/leds.h> ++#include <asm/mach-types.h> ++#include <asm/system.h> ++ ++#define LED_STATE_ENABLED 0x01 ++#define LED_STATE_CLAIMED 0x02 ++#define LED_STATE_IDLE 0x04 ++ ++static unsigned char led_state; ++static unsigned int hw_led_state; ++ ++static const unsigned long idle_seq[4] = { ++ ++ NSLU2_LED_GRN_BM, 0, ++ NSLU2_LED_GRN_BM, 0, ++}; ++ ++static const unsigned long busy_seq[4] = { ++ ++ NSLU2_LED_GRN_BM, 0, ++ NSLU2_LED_GRN_BM | NSLU2_LED_RED_BM, 0, ++}; ++ ++static unsigned char led_count = 0; ++ ++static DEFINE_SPINLOCK(leds_lock); ++extern spinlock_t gpio_lock; ++ ++static void nslu2_leds_event(led_event_t evt) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&leds_lock, flags); ++ ++ switch (evt) { ++ case led_start: ++ /* Let's rock! Red led on, all others off. Remember ++ * that disk1/disk2 works inverted. On the NSLU2, the ++ * interface starts in a claimed state. XXX ++ */ ++ led_state = LED_STATE_ENABLED | LED_STATE_CLAIMED; ++ hw_led_state = NSLU2_LED_DISK1_BM | NSLU2_LED_DISK2_BM ++ | NSLU2_LED_RED_BM; ++ break; ++ ++ case led_stop: ++ led_state &= ~LED_STATE_ENABLED; ++ break; ++ ++ case led_claim: ++ /* The user claimed the interface, red and green off */ ++ led_state |= LED_STATE_CLAIMED; ++ hw_led_state &= ~(NSLU2_LED_RED_BM | NSLU2_LED_GRN_BM); ++ break; ++ ++ case led_release: ++ /* The user released the interface, preserve the last ++ * status of the leds, except red/green. ++ */ ++ led_state &= ~LED_STATE_CLAIMED; ++ hw_led_state = *IXP4XX_GPIO_GPOUTR & 0x0000000C; ++ break; ++ ++#ifdef CONFIG_LEDS_TIMER ++ case led_timer: ++ /* Pulse green led */ ++ if (!(led_state & LED_STATE_CLAIMED)) ++ { ++ /* clear red and green bits */ ++ hw_led_state &= ~(NSLU2_LED_RED_BM | NSLU2_LED_GRN_BM); ++ ++ /* copy the right sequence in */ ++ if (led_state & LED_STATE_IDLE) ++ hw_led_state |= idle_seq[led_count % 4]; ++ else ++ hw_led_state |= busy_seq[led_count % 4]; ++ ++ led_count++; ++ } ++ break; ++#endif ++ ++#ifdef CONFIG_LEDS_CPU ++ ++ case led_idle_start: ++ led_state |= LED_STATE_IDLE; ++#ifndef CONFIG_LEDS_TIMER ++ /* green on, red off */ ++ hw_led_state |= NSLU2_LED_GRN_BM; ++ hw_led_state &= ~NSLU2_LED_RED_BM; ++#endif ++ break; ++ ++ case led_idle_end: ++ led_state &= ~LED_STATE_IDLE; ++#ifndef CONFIG_LEDS_TIMER ++ /* green on, red on -> amber on */ ++ hw_led_state |= NSLU2_LED_GRN_BM | NSLU2_LED_RED_BM; ++#endif ++ break; ++#endif ++ ++ case led_halted: ++ if (!(led_state & LED_STATE_CLAIMED)) ++ hw_led_state |= NSLU2_LED_RED_BM; ++ break; ++ ++ /* leds */ ++ ++ case led_green_on: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state |= NSLU2_LED_GRN_BM; ++ break; ++ ++ case led_green_off: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state &= ~NSLU2_LED_GRN_BM; ++ break; ++ ++ case led_amber_on: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state |= (NSLU2_LED_RED_BM | NSLU2_LED_GRN_BM); ++ break; ++ ++ case led_amber_off: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state &= ~(NSLU2_LED_RED_BM | NSLU2_LED_GRN_BM); ++ break; ++ ++ case led_red_on: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state |= NSLU2_LED_RED_BM; ++ break; ++ ++ case led_red_off: ++ if (led_state & LED_STATE_CLAIMED) ++ hw_led_state &= ~NSLU2_LED_RED_BM; ++ break; ++ ++ default: ++ break; ++ } ++ ++ spin_unlock_irqrestore(&leds_lock, flags); ++ ++ if (led_state & LED_STATE_ENABLED) { ++ spin_lock_irqsave(&gpio_lock, flags); ++ *IXP4XX_GPIO_GPOUTR = (*IXP4XX_GPIO_GPOUTR & 0xFFFFFFF0) | hw_led_state; ++ spin_unlock_irqrestore(&gpio_lock, flags); ++ } ++} ++ ++static int nslu2_leds_panic_event(struct notifier_block *this, unsigned long event, ++ void *ptr) ++{ ++ leds_event(led_green_off); ++ leds_event(led_red_on); ++ ++ return NOTIFY_DONE; ++} ++ ++static struct notifier_block nslu2_leds_panic_block = { ++ .notifier_call = nslu2_leds_panic_event, ++}; ++ ++static int __init nslu2_leds_init(void) ++{ ++ if (!(machine_is_nslu2())) ++ return 0; ++ ++ printk(KERN_INFO "NSLU2: leds\n"); ++ ++ /* register panic notifier */ ++ notifier_chain_register(&panic_notifier_list, &nslu2_leds_panic_block); ++ ++ /* enable gpio 0-3 */ ++ gpio_line_config(NSLU2_LED_GRN, IXP4XX_GPIO_OUT); ++ gpio_line_config(NSLU2_LED_RED, IXP4XX_GPIO_OUT); ++ gpio_line_config(NSLU2_LED_DISK1, IXP4XX_GPIO_OUT); ++ gpio_line_config(NSLU2_LED_DISK2, IXP4XX_GPIO_OUT); ++ ++ leds_event = nslu2_leds_event; ++ ++ /* this will also initialize the leds to the ++ * default state. ++ */ ++ ++ leds_event(led_start); ++ ++ return 0; ++} ++ ++module_init(nslu2_leds_init); ++ |