To compile this driver as a module, choose M here: the module will
be called leds-adp5520.
-config LEDS_DELL_NETBOOKS
- tristate "External LED on Dell Business Netbooks"
- depends on LEDS_CLASS
- depends on X86 && ACPI_WMI
- help
- This adds support for the Latitude 2100 and similar
- notebooks that have an external LED.
-
config LEDS_MC13783
tristate "LED Support for MC13XXX PMIC"
depends on LEDS_CLASS
obj-$(CONFIG_LEDS_INTEL_SS4200) += leds-ss4200.o
obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o
obj-$(CONFIG_LEDS_ADP5520) += leds-adp5520.o
-obj-$(CONFIG_LEDS_DELL_NETBOOKS) += dell-led.o
obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o
obj-$(CONFIG_LEDS_NS2) += leds-ns2.o
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
+++ /dev/null
-/*
- * dell_led.c - Dell LED Driver
- *
- * Copyright (C) 2010 Dell Inc.
- * Louis Davis <louis_davis@dell.com>
- * Jim Dailey <jim_dailey@dell.com>
- *
- * 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.
- *
- */
-
-#include <linux/acpi.h>
-#include <linux/leds.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-MODULE_AUTHOR("Louis Davis/Jim Dailey");
-MODULE_DESCRIPTION("Dell LED Control Driver");
-MODULE_LICENSE("GPL");
-
-#define DELL_LED_BIOS_GUID "F6E4FE6E-909D-47cb-8BAB-C9F6F2F8D396"
-MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
-
-/* Error Result Codes: */
-#define INVALID_DEVICE_ID 250
-#define INVALID_PARAMETER 251
-#define INVALID_BUFFER 252
-#define INTERFACE_ERROR 253
-#define UNSUPPORTED_COMMAND 254
-#define UNSPECIFIED_ERROR 255
-
-/* Device ID */
-#define DEVICE_ID_PANEL_BACK 1
-
-/* LED Commands */
-#define CMD_LED_ON 16
-#define CMD_LED_OFF 17
-#define CMD_LED_BLINK 18
-
-struct bios_args {
- unsigned char length;
- unsigned char result_code;
- unsigned char device_id;
- unsigned char command;
- unsigned char on_time;
- unsigned char off_time;
-};
-
-static int dell_led_perform_fn(u8 length,
- u8 result_code,
- u8 device_id,
- u8 command,
- u8 on_time,
- u8 off_time)
-{
- struct bios_args *bios_return;
- u8 return_code;
- union acpi_object *obj;
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer input;
- acpi_status status;
-
- struct bios_args args;
- args.length = length;
- args.result_code = result_code;
- args.device_id = device_id;
- args.command = command;
- args.on_time = on_time;
- args.off_time = off_time;
-
- input.length = sizeof(struct bios_args);
- input.pointer = &args;
-
- status = wmi_evaluate_method(DELL_LED_BIOS_GUID,
- 1,
- 1,
- &input,
- &output);
-
- if (ACPI_FAILURE(status))
- return status;
-
- obj = output.pointer;
-
- if (!obj)
- return -EINVAL;
- else if (obj->type != ACPI_TYPE_BUFFER) {
- kfree(obj);
- return -EINVAL;
- }
-
- bios_return = ((struct bios_args *)obj->buffer.pointer);
- return_code = bios_return->result_code;
-
- kfree(obj);
-
- return return_code;
-}
-
-static int led_on(void)
-{
- return dell_led_perform_fn(3, /* Length of command */
- INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
- DEVICE_ID_PANEL_BACK, /* Device ID */
- CMD_LED_ON, /* Command */
- 0, /* not used */
- 0); /* not used */
-}
-
-static int led_off(void)
-{
- return dell_led_perform_fn(3, /* Length of command */
- INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
- DEVICE_ID_PANEL_BACK, /* Device ID */
- CMD_LED_OFF, /* Command */
- 0, /* not used */
- 0); /* not used */
-}
-
-static int led_blink(unsigned char on_eighths,
- unsigned char off_eighths)
-{
- return dell_led_perform_fn(5, /* Length of command */
- INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
- DEVICE_ID_PANEL_BACK, /* Device ID */
- CMD_LED_BLINK, /* Command */
- on_eighths, /* blink on in eigths of a second */
- off_eighths); /* blink off in eights of a second */
-}
-
-static void dell_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
-{
- if (value == LED_OFF)
- led_off();
- else
- led_on();
-}
-
-static int dell_led_blink(struct led_classdev *led_cdev,
- unsigned long *delay_on,
- unsigned long *delay_off)
-{
- unsigned long on_eighths;
- unsigned long off_eighths;
-
- /* The Dell LED delay is based on 125ms intervals.
- Need to round up to next interval. */
-
- on_eighths = (*delay_on + 124) / 125;
- if (0 == on_eighths)
- on_eighths = 1;
- if (on_eighths > 255)
- on_eighths = 255;
- *delay_on = on_eighths * 125;
-
- off_eighths = (*delay_off + 124) / 125;
- if (0 == off_eighths)
- off_eighths = 1;
- if (off_eighths > 255)
- off_eighths = 255;
- *delay_off = off_eighths * 125;
-
- led_blink(on_eighths, off_eighths);
-
- return 0;
-}
-
-static struct led_classdev dell_led = {
- .name = "dell::lid",
- .brightness = LED_OFF,
- .max_brightness = 1,
- .brightness_set = dell_led_set,
- .blink_set = dell_led_blink,
- .flags = LED_CORE_SUSPENDRESUME,
-};
-
-static int __init dell_led_init(void)
-{
- int error = 0;
-
- if (!wmi_has_guid(DELL_LED_BIOS_GUID))
- return -ENODEV;
-
- error = led_off();
- if (error != 0)
- return -ENODEV;
-
- return led_classdev_register(NULL, &dell_led);
-}
-
-static void __exit dell_led_exit(void)
-{
- led_classdev_unregister(&dell_led);
-
- led_off();
-}
-
-module_init(dell_led_init);
-module_exit(dell_led_exit);
To compile this driver as a module, choose M here: the module will
be called dell-wmi-aio.
+config DELL_WMI_LED
+ tristate "External LED on Dell Business Netbooks"
+ depends on LEDS_CLASS
+ depends on ACPI_WMI
+ help
+ This adds support for the Latitude 2100 and similar
+ notebooks that have an external LED.
+
config DELL_SMO8800
tristate "Dell Latitude freefall driver (ACPI SMO88XX)"
depends on ACPI
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_WMI) += dell-wmi.o
obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o
+obj-$(CONFIG_DELL_WMI_LED) += dell-wmi-led.o
obj-$(CONFIG_DELL_SMO8800) += dell-smo8800.o
obj-$(CONFIG_DELL_RBTN) += dell-rbtn.o
obj-$(CONFIG_ACER_WMI) += acer-wmi.o
--- /dev/null
+/*
+ * Copyright (C) 2010 Dell Inc.
+ * Louis Davis <louis_davis@dell.com>
+ * Jim Dailey <jim_dailey@dell.com>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Louis Davis/Jim Dailey");
+MODULE_DESCRIPTION("Dell LED Control Driver");
+MODULE_LICENSE("GPL");
+
+#define DELL_LED_BIOS_GUID "F6E4FE6E-909D-47cb-8BAB-C9F6F2F8D396"
+MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
+
+/* Error Result Codes: */
+#define INVALID_DEVICE_ID 250
+#define INVALID_PARAMETER 251
+#define INVALID_BUFFER 252
+#define INTERFACE_ERROR 253
+#define UNSUPPORTED_COMMAND 254
+#define UNSPECIFIED_ERROR 255
+
+/* Device ID */
+#define DEVICE_ID_PANEL_BACK 1
+
+/* LED Commands */
+#define CMD_LED_ON 16
+#define CMD_LED_OFF 17
+#define CMD_LED_BLINK 18
+
+struct bios_args {
+ unsigned char length;
+ unsigned char result_code;
+ unsigned char device_id;
+ unsigned char command;
+ unsigned char on_time;
+ unsigned char off_time;
+};
+
+static int dell_led_perform_fn(u8 length,
+ u8 result_code,
+ u8 device_id,
+ u8 command,
+ u8 on_time,
+ u8 off_time)
+{
+ struct bios_args *bios_return;
+ u8 return_code;
+ union acpi_object *obj;
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer input;
+ acpi_status status;
+
+ struct bios_args args;
+ args.length = length;
+ args.result_code = result_code;
+ args.device_id = device_id;
+ args.command = command;
+ args.on_time = on_time;
+ args.off_time = off_time;
+
+ input.length = sizeof(struct bios_args);
+ input.pointer = &args;
+
+ status = wmi_evaluate_method(DELL_LED_BIOS_GUID,
+ 1,
+ 1,
+ &input,
+ &output);
+
+ if (ACPI_FAILURE(status))
+ return status;
+
+ obj = output.pointer;
+
+ if (!obj)
+ return -EINVAL;
+ else if (obj->type != ACPI_TYPE_BUFFER) {
+ kfree(obj);
+ return -EINVAL;
+ }
+
+ bios_return = ((struct bios_args *)obj->buffer.pointer);
+ return_code = bios_return->result_code;
+
+ kfree(obj);
+
+ return return_code;
+}
+
+static int led_on(void)
+{
+ return dell_led_perform_fn(3, /* Length of command */
+ INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
+ DEVICE_ID_PANEL_BACK, /* Device ID */
+ CMD_LED_ON, /* Command */
+ 0, /* not used */
+ 0); /* not used */
+}
+
+static int led_off(void)
+{
+ return dell_led_perform_fn(3, /* Length of command */
+ INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
+ DEVICE_ID_PANEL_BACK, /* Device ID */
+ CMD_LED_OFF, /* Command */
+ 0, /* not used */
+ 0); /* not used */
+}
+
+static int led_blink(unsigned char on_eighths,
+ unsigned char off_eighths)
+{
+ return dell_led_perform_fn(5, /* Length of command */
+ INTERFACE_ERROR, /* Init to INTERFACE_ERROR */
+ DEVICE_ID_PANEL_BACK, /* Device ID */
+ CMD_LED_BLINK, /* Command */
+ on_eighths, /* blink on in eigths of a second */
+ off_eighths); /* blink off in eights of a second */
+}
+
+static void dell_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ if (value == LED_OFF)
+ led_off();
+ else
+ led_on();
+}
+
+static int dell_led_blink(struct led_classdev *led_cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ unsigned long on_eighths;
+ unsigned long off_eighths;
+
+ /* The Dell LED delay is based on 125ms intervals.
+ Need to round up to next interval. */
+
+ on_eighths = (*delay_on + 124) / 125;
+ if (0 == on_eighths)
+ on_eighths = 1;
+ if (on_eighths > 255)
+ on_eighths = 255;
+ *delay_on = on_eighths * 125;
+
+ off_eighths = (*delay_off + 124) / 125;
+ if (0 == off_eighths)
+ off_eighths = 1;
+ if (off_eighths > 255)
+ off_eighths = 255;
+ *delay_off = off_eighths * 125;
+
+ led_blink(on_eighths, off_eighths);
+
+ return 0;
+}
+
+static struct led_classdev dell_led = {
+ .name = "dell::lid",
+ .brightness = LED_OFF,
+ .max_brightness = 1,
+ .brightness_set = dell_led_set,
+ .blink_set = dell_led_blink,
+ .flags = LED_CORE_SUSPENDRESUME,
+};
+
+static int __init dell_led_init(void)
+{
+ int error = 0;
+
+ if (!wmi_has_guid(DELL_LED_BIOS_GUID))
+ return -ENODEV;
+
+ error = led_off();
+ if (error != 0)
+ return -ENODEV;
+
+ return led_classdev_register(NULL, &dell_led);
+}
+
+static void __exit dell_led_exit(void)
+{
+ led_classdev_unregister(&dell_led);
+
+ led_off();
+}
+
+module_init(dell_led_init);
+module_exit(dell_led_exit);
projects / linux-2.6-block.git / commitdiff