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path: root/drivers/leds/dell-led.c
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Diffstat (limited to 'drivers/leds/dell-led.c')
-rw-r--r--drivers/leds/dell-led.c126
1 files changed, 14 insertions, 112 deletions
diff --git a/drivers/leds/dell-led.c b/drivers/leds/dell-led.c
index c36acaf566a6..b3d6e9c15cf9 100644
--- a/drivers/leds/dell-led.c
+++ b/drivers/leds/dell-led.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/dmi.h>
#include <linux/dell-led.h>
+#include "../platform/x86/dell-smbios.h"
MODULE_AUTHOR("Louis Davis/Jim Dailey");
MODULE_DESCRIPTION("Dell LED Control Driver");
@@ -42,120 +43,32 @@ MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
#define CMD_LED_OFF 17
#define CMD_LED_BLINK 18
-struct app_wmi_args {
- u16 class;
- u16 selector;
- u32 arg1;
- u32 arg2;
- u32 arg3;
- u32 arg4;
- u32 res1;
- u32 res2;
- u32 res3;
- u32 res4;
- char dummy[92];
-};
-
#define GLOBAL_MIC_MUTE_ENABLE 0x364
#define GLOBAL_MIC_MUTE_DISABLE 0x365
-struct dell_bios_data_token {
- u16 tokenid;
- u16 location;
- u16 value;
-};
-
-struct __attribute__ ((__packed__)) dell_bios_calling_interface {
- struct dmi_header header;
- u16 cmd_io_addr;
- u8 cmd_io_code;
- u32 supported_cmds;
- struct dell_bios_data_token damap[];
-};
-
-static struct dell_bios_data_token dell_mic_tokens[2];
-
-static int dell_wmi_perform_query(struct app_wmi_args *args)
-{
- struct app_wmi_args *bios_return;
- union acpi_object *obj;
- struct acpi_buffer input;
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- acpi_status status;
- u32 rc = -EINVAL;
-
- input.length = 128;
- input.pointer = args;
-
- status = wmi_evaluate_method(DELL_APP_GUID, 0, 1, &input, &output);
- if (!ACPI_SUCCESS(status))
- goto err_out0;
-
- obj = output.pointer;
- if (!obj)
- goto err_out0;
-
- if (obj->type != ACPI_TYPE_BUFFER)
- goto err_out1;
-
- bios_return = (struct app_wmi_args *)obj->buffer.pointer;
- rc = bios_return->res1;
- if (rc)
- goto err_out1;
-
- memcpy(args, bios_return, sizeof(struct app_wmi_args));
- rc = 0;
-
- err_out1:
- kfree(obj);
- err_out0:
- return rc;
-}
-
-static void __init find_micmute_tokens(const struct dmi_header *dm, void *dummy)
-{
- struct dell_bios_calling_interface *calling_interface;
- struct dell_bios_data_token *token;
- int token_size = sizeof(struct dell_bios_data_token);
- int i = 0;
-
- if (dm->type == 0xda && dm->length > 17) {
- calling_interface = container_of(dm,
- struct dell_bios_calling_interface, header);
-
- token = &calling_interface->damap[i];
- while (token->tokenid != 0xffff) {
- if (token->tokenid == GLOBAL_MIC_MUTE_DISABLE)
- memcpy(&dell_mic_tokens[0], token, token_size);
- else if (token->tokenid == GLOBAL_MIC_MUTE_ENABLE)
- memcpy(&dell_mic_tokens[1], token, token_size);
-
- i++;
- token = &calling_interface->damap[i];
- }
- }
-}
-
static int dell_micmute_led_set(int state)
{
- struct app_wmi_args args;
- struct dell_bios_data_token *token;
+ struct calling_interface_buffer *buffer;
+ struct calling_interface_token *token;
if (!wmi_has_guid(DELL_APP_GUID))
return -ENODEV;
- if (state == 0 || state == 1)
- token = &dell_mic_tokens[state];
+ 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;
- memset(&args, 0, sizeof(struct app_wmi_args));
-
- args.class = 1;
- args.arg1 = token->location;
- args.arg2 = token->value;
+ if (!token)
+ return -ENODEV;
- dell_wmi_perform_query(&args);
+ 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;
}
@@ -177,14 +90,6 @@ int dell_app_wmi_led_set(int whichled, int on)
}
EXPORT_SYMBOL_GPL(dell_app_wmi_led_set);
-static int __init dell_micmute_led_init(void)
-{
- memset(dell_mic_tokens, 0, sizeof(struct dell_bios_data_token) * 2);
- dmi_walk(find_micmute_tokens, NULL);
-
- return 0;
-}
-
struct bios_args {
unsigned char length;
unsigned char result_code;
@@ -330,9 +235,6 @@ static int __init dell_led_init(void)
if (!wmi_has_guid(DELL_LED_BIOS_GUID) && !wmi_has_guid(DELL_APP_GUID))
return -ENODEV;
- if (wmi_has_guid(DELL_APP_GUID))
- error = dell_micmute_led_init();
-
if (wmi_has_guid(DELL_LED_BIOS_GUID)) {
error = led_off();
if (error != 0)