aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch')
-rw-r--r--target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch319
1 files changed, 319 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch b/target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch
new file mode 100644
index 0000000000..5e82d1f57e
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.25/031-ixp4xx_fsg_led_driver.patch
@@ -0,0 +1,319 @@
+From a66e34fefb3f8142d7f16808563eb610225f6e77 Mon Sep 17 00:00:00 2001
+From: Rod Whitby <rod@whitby.id.au>
+Date: Tue, 29 Jan 2008 23:17:42 +1030
+Subject: [PATCH] leds: Add new driver for the LEDs on the Freecom FSG-3
+
+The LEDs on the Freecom FSG-3 are connected to an external
+memory-mapped latch on the ixp4xx expansion bus, and therefore cannot
+be supported by any of the existing LEDs drivers.
+
+Signed-off-by: Rod Whitby <rod@whitby.id.au>
+--
+PATCH FOLLOWS
+KernelVersion: v2.6.25-rc6-117-g457fb60
+---
+ drivers/leds/Kconfig | 6 +
+ drivers/leds/Makefile | 1 +
+ drivers/leds/leds-fsg.c | 261 +++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 268 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/leds/leds-fsg.c
+
+diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
+index 859814f..aefbe04 100644
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -46,6 +46,12 @@ config LEDS_SPITZ
+ This option enables support for the LEDs on Sharp Zaurus
+ SL-Cxx00 series (C1000, C3000, C3100).
+
++config LEDS_FSG
++ tristate "LED Support for the Freecom FSG-3"
++ depends on LEDS_CLASS && MACH_FSG
++ help
++ This option enables support for the LEDs on the Freecom FSG-3.
++
+ config LEDS_TOSA
+ tristate "LED Support for the Sharp SL-6000 series"
+ depends on LEDS_CLASS && PXA_SHARPSL
+diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
+index 84ced3b..b17bd91 100644
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -21,6 +21,7 @@ obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
+ obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
+ obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
+ obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
++obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
+
+ # LED Triggers
+ obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
+diff --git a/drivers/leds/leds-fsg.c b/drivers/leds/leds-fsg.c
+new file mode 100644
+index 0000000..a7421b8
+--- /dev/null
++++ b/drivers/leds/leds-fsg.c
+@@ -0,0 +1,261 @@
++/*
++ * LED Driver for the Freecom FSG-3
++ *
++ * Copyright (c) 2008 Rod Whitby <rod@whitby.id.au>
++ *
++ * Author: Rod Whitby <rod@whitby.id.au>
++ *
++ * Based on leds-spitz.c
++ * Copyright 2005-2006 Openedhand Ltd.
++ * Author: Richard Purdie <rpurdie@openedhand.com>
++ *
++ * 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/kernel.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++#include <linux/leds.h>
++#include <asm/arch/hardware.h>
++#include <asm/io.h>
++
++static short __iomem *latch_address;
++static unsigned short latch_value;
++
++
++static void fsg_led_wlan_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_WLAN_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_WLAN_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++static void fsg_led_wan_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_WAN_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_WAN_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++static void fsg_led_sata_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_SATA_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_SATA_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++static void fsg_led_usb_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_USB_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_USB_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++static void fsg_led_sync_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_SYNC_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_SYNC_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++static void fsg_led_ring_set(struct led_classdev *led_cdev,
++ enum led_brightness value)
++{
++ if (value) {
++ latch_value &= ~(1 << FSG_LED_RING_BIT);
++ *latch_address = latch_value;
++ } else {
++ latch_value |= (1 << FSG_LED_RING_BIT);
++ *latch_address = latch_value;
++ }
++}
++
++
++
++static struct led_classdev fsg_wlan_led = {
++ .name = "fsg:blue:wlan",
++ .brightness_set = fsg_led_wlan_set,
++};
++
++static struct led_classdev fsg_wan_led = {
++ .name = "fsg:blue:wan",
++ .brightness_set = fsg_led_wan_set,
++};
++
++static struct led_classdev fsg_sata_led = {
++ .name = "fsg:blue:sata",
++ .brightness_set = fsg_led_sata_set,
++};
++
++static struct led_classdev fsg_usb_led = {
++ .name = "fsg:blue:usb",
++ .brightness_set = fsg_led_usb_set,
++};
++
++static struct led_classdev fsg_sync_led = {
++ .name = "fsg:blue:sync",
++ .brightness_set = fsg_led_sync_set,
++};
++
++static struct led_classdev fsg_ring_led = {
++ .name = "fsg:blue:ring",
++ .brightness_set = fsg_led_ring_set,
++};
++
++
++
++#ifdef CONFIG_PM
++static int fsg_led_suspend(struct platform_device *dev, pm_message_t state)
++{
++ led_classdev_suspend(&fsg_wlan_led);
++ led_classdev_suspend(&fsg_wan_led);
++ led_classdev_suspend(&fsg_sata_led);
++ led_classdev_suspend(&fsg_usb_led);
++ led_classdev_suspend(&fsg_sync_led);
++ led_classdev_suspend(&fsg_ring_led);
++ return 0;
++}
++
++static int fsg_led_resume(struct platform_device *dev)
++{
++ led_classdev_resume(&fsg_wlan_led);
++ led_classdev_resume(&fsg_wan_led);
++ led_classdev_resume(&fsg_sata_led);
++ led_classdev_resume(&fsg_usb_led);
++ led_classdev_resume(&fsg_sync_led);
++ led_classdev_resume(&fsg_ring_led);
++ return 0;
++}
++#endif
++
++
++static int fsg_led_probe(struct platform_device *pdev)
++{
++ int ret;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_wlan_led);
++ if (ret < 0)
++ goto failwlan;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_wan_led);
++ if (ret < 0)
++ goto failwan;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_sata_led);
++ if (ret < 0)
++ goto failsata;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_usb_led);
++ if (ret < 0)
++ goto failusb;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_sync_led);
++ if (ret < 0)
++ goto failsync;
++
++ ret = led_classdev_register(&pdev->dev, &fsg_ring_led);
++ if (ret < 0)
++ goto failring;
++
++ /* Map the LED chip select address space */
++ latch_address = (unsigned short *) ioremap(IXP4XX_EXP_BUS_BASE(2), 512);
++ if (!latch_address) {
++ ret = -ENOMEM;
++ goto failremap;
++ }
++
++ latch_value = 0xffff;
++ *latch_address = latch_value;
++
++ return ret;
++
++ failremap:
++ led_classdev_unregister(&fsg_ring_led);
++ failring:
++ led_classdev_unregister(&fsg_sync_led);
++ failsync:
++ led_classdev_unregister(&fsg_usb_led);
++ failusb:
++ led_classdev_unregister(&fsg_sata_led);
++ failsata:
++ led_classdev_unregister(&fsg_wan_led);
++ failwan:
++ led_classdev_unregister(&fsg_wlan_led);
++ failwlan:
++
++ return ret;
++}
++
++static int fsg_led_remove(struct platform_device *pdev)
++{
++ iounmap(latch_address);
++
++ led_classdev_unregister(&fsg_wlan_led);
++ led_classdev_unregister(&fsg_wan_led);
++ led_classdev_unregister(&fsg_sata_led);
++ led_classdev_unregister(&fsg_usb_led);
++ led_classdev_unregister(&fsg_sync_led);
++ led_classdev_unregister(&fsg_ring_led);
++
++ return 0;
++}
++
++
++static struct platform_driver fsg_led_driver = {
++ .probe = fsg_led_probe,
++ .remove = fsg_led_remove,
++#ifdef CONFIG_PM
++ .suspend = fsg_led_suspend,
++ .resume = fsg_led_resume,
++#endif
++ .driver = {
++ .name = "fsg-led",
++ },
++};
++
++
++static int __init fsg_led_init(void)
++{
++ return platform_driver_register(&fsg_led_driver);
++}
++
++static void __exit fsg_led_exit(void)
++{
++ platform_driver_unregister(&fsg_led_driver);
++}
++
++
++module_init(fsg_led_init);
++module_exit(fsg_led_exit);
++
++MODULE_AUTHOR("Rod Whitby <rod@whitby.id.au>");
++MODULE_DESCRIPTION("Freecom FSG-3 LED driver");
++MODULE_LICENSE("GPL");
+--
+1.5.2.5
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 10:10:48 +0000