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    Subject[PATCH] Led driver for technologic systems 5500
    Here is a patch for the led on the Technologic Systems 5500 board. Detection
    is a bit flimsy; Is there anything that can be done about that?

    Signed-off-by: Sean Young <sean@mess.org>
    ---
    diff -urpN linux-2.6.26/drivers/leds/Kconfig /home/sean/tiger/linux-2.6.26/drivers/leds/Kconfig
    --- linux-2.6.26/drivers/leds/Kconfig 2008-07-13 22:51:29.000000000 +0100
    +++ /home/sean/tiger/linux-2.6.26/drivers/leds/Kconfig 2008-07-17 15:14:55.000000000 +0100
    @@ -147,6 +147,16 @@ config LEDS_CLEVO_MAIL
    To compile this driver as a module, choose M here: the
    module will be called leds-clevo-mail.

    +config LEDS_TS5500
    + tristate "LED Support for the TS-5500"
    + depends on LEDS_CLASS && X86
    + help
    + This driver makes the led on the Technology Systems 5500
    + (and possibly other models) accessible for userspace.
    +
    + Note that this led is hardwired to be xor'ed with Compact Flash
    + activity.
    +
    comment "LED Triggers"

    config LEDS_TRIGGERS
    diff -urpN linux-2.6.26/drivers/leds/leds-ts5500.c /home/sean/tiger/linux-2.6.26/drivers/leds/leds-ts5500.c
    --- linux-2.6.26/drivers/leds/leds-ts5500.c 1970-01-01 01:00:00.000000000 +0100
    +++ /home/sean/tiger/linux-2.6.26/drivers/leds/leds-ts5500.c 2008-07-19 13:08:19.000000000 +0100
    @@ -0,0 +1,99 @@
    +/*
    + * Copyright (C) 2008 Sean Young <sean@mess.org>
    + */
    +
    +#include <linux/module.h>
    +#include <linux/platform_device.h>
    +#include <linux/delay.h>
    +#include <linux/string.h>
    +#include <linux/io.h>
    +#include <linux/leds.h>
    +
    +static struct platform_device *ts5500_platform_device;
    +
    +static void ts5500_led_set(struct led_classdev *led_dev, enum led_brightness value)
    +{
    + outb(value ? 1 : 0, 0x77);
    +}
    +
    +static struct led_classdev ts5500_led = {
    + .name = "ts5500:green",
    + .brightness_set = ts5500_led_set,
    +};
    +
    +static int __devinit ts5500leds_probe(struct platform_device *pdev)
    +{
    + return led_classdev_register(&pdev->dev, &ts5500_led);
    +}
    +
    +static int __devexit ts5500leds_remove(struct platform_device *pdev)
    +{
    + led_classdev_unregister(&ts5500_led);
    + return 0;
    +}
    +
    +static struct platform_driver ts5500leds_driver = {
    + .driver = {
    + .name = "ts5500-leds",
    + .owner = THIS_MODULE,
    + },
    + .probe = ts5500leds_probe,
    + .remove = __devexit_p(ts5500leds_remove),
    +};
    +
    +
    +static int __init ts5500leds_init(void)
    +{
    + int rc;
    + uint8_t product_code;
    +
    + if (!request_region(0x74, 1, "ts5500-leds"))
    + return -ENODEV;
    +
    + product_code = inb(0x74);
    +
    + release_region(0x74, 1);
    +
    + if (product_code != 0x60)
    + return -ENODEV;
    +
    + if (!request_region(0x77, 1, "ts5500-leds"))
    + return -ENODEV;
    +
    + rc = platform_driver_register(&ts5500leds_driver);
    + if (rc)
    + goto free_port;
    +
    + ts5500_platform_device = platform_device_alloc("ts5500-leds", -1);
    + if (!ts5500_platform_device)
    + goto driver_unreg;
    +
    + rc = platform_device_add(ts5500_platform_device);
    + if (rc)
    + goto free_device;
    +
    + return 0;
    +
    +free_port:
    + release_region(0x77, 1);
    +free_device:
    + platform_device_put(ts5500_platform_device);
    +driver_unreg:
    + platform_driver_unregister(&ts5500leds_driver);
    +
    + return rc;
    +}
    +
    +static void __exit ts5500leds_exit(void)
    +{
    + platform_device_unregister(ts5500_platform_device);
    + platform_driver_unregister(&ts5500leds_driver);
    + release_region(0x77, 1);
    +}
    +
    +module_init(ts5500leds_init);
    +module_exit(ts5500leds_exit);
    +
    +MODULE_AUTHOR("Sean Young <sean@mess.org>");
    +MODULE_DESCRIPTION("LED driver for the Technology Systems 5500");
    +MODULE_LICENSE("GPL");
    diff -urpN linux-2.6.26/drivers/leds/Makefile /home/sean/tiger/linux-2.6.26/drivers/leds/Makefile
    --- linux-2.6.26/drivers/leds/Makefile 2008-07-13 22:51:29.000000000 +0100
    +++ /home/sean/tiger/linux-2.6.26/drivers/leds/Makefile 2008-07-17 15:14:55.000000000 +0100
    @@ -21,6 +21,7 @@ obj-$(CONFIG_LEDS_CM_X270)
    obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
    obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
    obj-$(CONFIG_LEDS_FSG) += leds-fsg.o
    +obj-$(CONFIG_LEDS_TS5500) += leds-ts5500.o

    # LED Triggers
    obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o

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