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authorMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
committerMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
commit69830d3909849dee33b9a2de88ece3d59c75a1b8 (patch)
tree67e22ac989e782ddc104f186dee54d1675e76923 /include/uapi/linux/wmi.h
parentASoC: rk3399_gru_sound: Map BTN_0 to KEY_PLAYPAUSE (diff)
parentASoC: add snd_soc_disconnect_sync() (diff)
downloadlinux-dev-69830d3909849dee33b9a2de88ece3d59c75a1b8.tar.xz
linux-dev-69830d3909849dee33b9a2de88ece3d59c75a1b8.zip
Merge branch 'topic/disconnect' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rcar
Diffstat (limited to 'include/uapi/linux/wmi.h')
-rw-r--r--include/uapi/linux/wmi.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/include/uapi/linux/wmi.h b/include/uapi/linux/wmi.h
new file mode 100644
index 000000000000..7a92e9e3d1c0
--- /dev/null
+++ b/include/uapi/linux/wmi.h
@@ -0,0 +1,73 @@
+/*
+ * User API methods for ACPI-WMI mapping driver
+ *
+ * Copyright (C) 2017 Dell, Inc.
+ *
+ * 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.
+ */
+#ifndef _UAPI_LINUX_WMI_H
+#define _UAPI_LINUX_WMI_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/* WMI bus will filter all WMI vendor driver requests through this IOC */
+#define WMI_IOC 'W'
+
+/* All ioctl requests through WMI should declare their size followed by
+ * relevant data objects
+ */
+struct wmi_ioctl_buffer {
+ __u64 length;
+ __u8 data[];
+};
+
+/* This structure may be modified by the firmware when we enter
+ * system management mode through SMM, hence the volatiles
+ */
+struct calling_interface_buffer {
+ __u16 cmd_class;
+ __u16 cmd_select;
+ volatile __u32 input[4];
+ volatile __u32 output[4];
+} __packed;
+
+struct dell_wmi_extensions {
+ __u32 argattrib;
+ __u32 blength;
+ __u8 data[];
+} __packed;
+
+struct dell_wmi_smbios_buffer {
+ __u64 length;
+ struct calling_interface_buffer std;
+ struct dell_wmi_extensions ext;
+} __packed;
+
+/* Whitelisted smbios class/select commands */
+#define CLASS_TOKEN_READ 0
+#define CLASS_TOKEN_WRITE 1
+#define SELECT_TOKEN_STD 0
+#define SELECT_TOKEN_BAT 1
+#define SELECT_TOKEN_AC 2
+#define CLASS_FLASH_INTERFACE 7
+#define SELECT_FLASH_INTERFACE 3
+#define CLASS_ADMIN_PROP 10
+#define SELECT_ADMIN_PROP 3
+#define CLASS_INFO 17
+#define SELECT_RFKILL 11
+#define SELECT_APP_REGISTRATION 3
+#define SELECT_DOCK 22
+
+/* whitelisted tokens */
+#define CAPSULE_EN_TOKEN 0x0461
+#define CAPSULE_DIS_TOKEN 0x0462
+#define WSMT_EN_TOKEN 0x04EC
+#define WSMT_DIS_TOKEN 0x04ED
+
+/* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */
+#define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer)
+
+#endif