msi-wmi.c (92f61cbc614fb422759790739cbd3e5a68c9a6fc) msi-wmi.c (a80e1cd70144fe7727f2e2d838611b6b8cf8a6d5)
1/*
2 * MSI WMI hotkeys
3 *
4 * Copyright (C) 2009 Novell <trenn@suse.de>
5 *
6 * Most stuff taken over from hp-wmi
7 *
8 * This program is free software; you can redistribute it and/or modify

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38#define DRV_NAME "msi-wmi"
39#define DRV_PFX DRV_NAME ": "
40
41#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
42#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
43
44#define dprintk(msg...) pr_debug(DRV_PFX msg)
45
1/*
2 * MSI WMI hotkeys
3 *
4 * Copyright (C) 2009 Novell <trenn@suse.de>
5 *
6 * Most stuff taken over from hp-wmi
7 *
8 * This program is free software; you can redistribute it and/or modify

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38#define DRV_NAME "msi-wmi"
39#define DRV_PFX DRV_NAME ": "
40
41#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
42#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
43
44#define dprintk(msg...) pr_debug(DRV_PFX msg)
45
46#define KEYCODE_BASE 0xD0
47#define MSI_WMI_BRIGHTNESSUP KEYCODE_BASE
48#define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1)
49#define MSI_WMI_VOLUMEUP (KEYCODE_BASE + 2)
50#define MSI_WMI_VOLUMEDOWN (KEYCODE_BASE + 3)
51#define MSI_WMI_MUTE (KEYCODE_BASE + 4)
46#define SCANCODE_BASE 0xD0
47#define MSI_WMI_BRIGHTNESSUP SCANCODE_BASE
48#define MSI_WMI_BRIGHTNESSDOWN (SCANCODE_BASE + 1)
49#define MSI_WMI_VOLUMEUP (SCANCODE_BASE + 2)
50#define MSI_WMI_VOLUMEDOWN (SCANCODE_BASE + 3)
51#define MSI_WMI_MUTE (SCANCODE_BASE + 4)
52static struct key_entry msi_wmi_keymap[] = {
53 { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} },
54 { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
55 { KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} },
56 { KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} },
57 { KE_KEY, MSI_WMI_MUTE, {KEY_MUTE} },
58 { KE_END, 0}
59};

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166 int eventcode = obj->integer.value;
167 dprintk("Eventcode: 0x%x\n", eventcode);
168 key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
169 eventcode);
170 if (key) {
171 ktime_t diff;
172 cur = ktime_get_real();
173 diff = ktime_sub(cur, last_pressed[key->code -
52static struct key_entry msi_wmi_keymap[] = {
53 { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} },
54 { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
55 { KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} },
56 { KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} },
57 { KE_KEY, MSI_WMI_MUTE, {KEY_MUTE} },
58 { KE_END, 0}
59};

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166 int eventcode = obj->integer.value;
167 dprintk("Eventcode: 0x%x\n", eventcode);
168 key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
169 eventcode);
170 if (key) {
171 ktime_t diff;
172 cur = ktime_get_real();
173 diff = ktime_sub(cur, last_pressed[key->code -
174 KEYCODE_BASE]);
174 SCANCODE_BASE]);
175 /* Ignore event if the same event happened in a 50 ms
176 timeframe -> Key press may result in 10-20 GPEs */
177 if (ktime_to_us(diff) < 1000 * 50) {
178 dprintk("Suppressed key event 0x%X - "
179 "Last press was %lld us ago\n",
180 key->code, ktime_to_us(diff));
181 return;
182 }
175 /* Ignore event if the same event happened in a 50 ms
176 timeframe -> Key press may result in 10-20 GPEs */
177 if (ktime_to_us(diff) < 1000 * 50) {
178 dprintk("Suppressed key event 0x%X - "
179 "Last press was %lld us ago\n",
180 key->code, ktime_to_us(diff));
181 return;
182 }
183 last_pressed[key->code - KEYCODE_BASE] = cur;
183 last_pressed[key->code - SCANCODE_BASE] = cur;
184
185 if (key->type == KE_KEY &&
186 /* Brightness is served via acpi video driver */
187 (!acpi_video_backlight_support() ||
188 (key->code != MSI_WMI_BRIGHTNESSUP &&
189 key->code != MSI_WMI_BRIGHTNESSDOWN))) {
190 dprintk("Send key: 0x%X - "
191 "Input layer keycode: %d\n", key->code,

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185 if (key->type == KE_KEY &&
186 /* Brightness is served via acpi video driver */
187 (!acpi_video_backlight_support() ||
188 (key->code != MSI_WMI_BRIGHTNESSUP &&
189 key->code != MSI_WMI_BRIGHTNESSDOWN))) {
190 dprintk("Send key: 0x%X - "
191 "Input layer keycode: %d\n", key->code,

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