diff options
Diffstat (limited to 'drivers/platform/x86/dell-laptop.c')
| -rw-r--r-- | drivers/platform/x86/dell-laptop.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index f57dd28..2e237ba 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -29,6 +29,7 @@ #include <linux/mm.h> #include <linux/i8042.h> #include <linux/debugfs.h> +#include <linux/dell-led.h> #include <linux/seq_file.h> #include <acpi/video.h> #include "dell-rbtn.h" @@ -42,6 +43,8 @@ #define KBD_LED_AUTO_50_TOKEN 0x02EB #define KBD_LED_AUTO_75_TOKEN 0x02EC #define KBD_LED_AUTO_100_TOKEN 0x02F6 +#define GLOBAL_MIC_MUTE_ENABLE 0x0364 +#define GLOBAL_MIC_MUTE_DISABLE 0x0365 struct quirk_entry { u8 touchpad_led; @@ -1978,6 +1981,31 @@ static void kbd_led_exit(void) led_classdev_unregister(&kbd_led); } +int dell_micmute_led_set(int state) +{ + struct calling_interface_buffer *buffer; + struct calling_interface_token *token; + + if (state == 0) + token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE); + else if (state == 1) + token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE); + else + return -EINVAL; + + if (!token) + return -ENODEV; + + buffer = dell_smbios_get_buffer(); + buffer->input[0] = token->location; + buffer->input[1] = token->value; + dell_smbios_send_request(1, 0); + dell_smbios_release_buffer(); + + return state; +} +EXPORT_SYMBOL_GPL(dell_micmute_led_set); + static int __init dell_init(void) { struct calling_interface_buffer *buffer; |
