From c30116c6f0d26cd6e46dfa578163d573ef4730b2 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 10 Dec 2009 14:18:19 +0100 Subject: [PATCH] msi-wmi: switch to using input sparse keymap library Signed-off-by: Anisse Astier Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 1 + drivers/platform/x86/msi-wmi.c | 134 ++++++++------------------------- 2 files changed, 33 insertions(+), 102 deletions(-) diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 98ec6bd9226e..1f82d6df96e1 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -369,6 +369,7 @@ config MSI_WMI tristate "MSI WMI extras" depends on ACPI_WMI depends on INPUT + select INPUT_SPARSEKMAP help Say Y here if you want to support WMI-based hotkeys on MSI laptops. diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 2c2afc1828b8..e25b80c530f7 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -21,9 +21,9 @@ */ - #include #include +#include #include #include @@ -52,26 +52,15 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*"); #define dprintk(msg...) pr_debug(DRV_PFX msg) -struct key_entry { - char type; /* See KE_* below */ - u16 code; - u16 keycode; - ktime_t last_pressed; -}; - -/* - * KE_KEY the only used key type, but keep this, others might also - * show up in the future. Compare with hp-wmi.c - */ -enum { KE_KEY, KE_END }; - +#define KEYCODE_BASE 0xD0 static struct key_entry msi_wmi_keymap[] = { - { KE_KEY, 0xd0, KEY_BRIGHTNESSUP, {0, } }, - { KE_KEY, 0xd1, KEY_BRIGHTNESSDOWN, {0, } }, - { KE_KEY, 0xd2, KEY_VOLUMEUP, {0, } }, - { KE_KEY, 0xd3, KEY_VOLUMEDOWN, {0, } }, + { KE_KEY, KEYCODE_BASE, {KEY_BRIGHTNESSUP} }, + { KE_KEY, KEYCODE_BASE + 1, {KEY_BRIGHTNESSDOWN} }, + { KE_KEY, KEYCODE_BASE + 2, {KEY_VOLUMEUP} }, + { KE_KEY, KEYCODE_BASE + 3, {KEY_VOLUMEDOWN} }, { KE_END, 0} }; +static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1]; struct backlight_device *backlight; @@ -158,61 +147,6 @@ static struct backlight_ops msi_backlight_ops = { .update_status = bl_set_status, }; -static struct key_entry *msi_wmi_get_entry_by_scancode(int code) -{ - struct key_entry *key; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) - if (code == key->code) - return key; - - return NULL; -} - -static struct key_entry *msi_wmi_get_entry_by_keycode(int keycode) -{ - struct key_entry *key; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) - if (key->type == KE_KEY && keycode == key->keycode) - return key; - - return NULL; -} - -static int msi_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode) -{ - struct key_entry *key = msi_wmi_get_entry_by_scancode(scancode); - - if (key && key->type == KE_KEY) { - *keycode = key->keycode; - return 0; - } - - return -EINVAL; -} - -static int msi_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) -{ - struct key_entry *key; - int old_keycode; - - if (keycode < 0 || keycode > KEY_MAX) - return -EINVAL; - - key = msi_wmi_get_entry_by_scancode(scancode); - if (key && key->type == KE_KEY) { - old_keycode = key->keycode; - key->keycode = keycode; - set_bit(keycode, dev->keybit); - if (!msi_wmi_get_entry_by_keycode(old_keycode)) - clear_bit(old_keycode, dev->keybit); - return 0; - } - - return -EINVAL; -} - static void msi_wmi_notify(u32 value, void *context) { struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -227,21 +161,22 @@ static void msi_wmi_notify(u32 value, void *context) if (obj && obj->type == ACPI_TYPE_INTEGER) { int eventcode = obj->integer.value; dprintk("Eventcode: 0x%x\n", eventcode); - key = msi_wmi_get_entry_by_scancode(eventcode); + key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev, + eventcode); if (key) { + ktime_t diff; cur = ktime_get_real(); + diff = ktime_sub(cur, last_pressed[key->code - + KEYCODE_BASE]); /* Ignore event if the same event happened in a 50 ms timeframe -> Key press may result in 10-20 GPEs */ - if (ktime_to_us(ktime_sub(cur, key->last_pressed)) - < 1000 * 50) { + if (ktime_to_us(diff) < 1000 * 50) { dprintk("Suppressed key event 0x%X - " "Last press was %lld us ago\n", - key->code, - ktime_to_us(ktime_sub(cur, - key->last_pressed))); + key->code, ktime_to_us(diff)); return; } - key->last_pressed = cur; + last_pressed[key->code - KEYCODE_BASE] = cur; if (key->type == KE_KEY && /* Brightness is served via acpi video driver */ @@ -250,12 +185,8 @@ static void msi_wmi_notify(u32 value, void *context) dprintk("Send key: 0x%X - " "Input layer keycode: %d\n", key->code, key->keycode); - input_report_key(msi_wmi_input_dev, - key->keycode, 1); - input_sync(msi_wmi_input_dev); - input_report_key(msi_wmi_input_dev, - key->keycode, 0); - input_sync(msi_wmi_input_dev); + sparse_keymap_report_entry(msi_wmi_input_dev, + key, 1, true); } } else printk(KERN_INFO "Unknown key pressed - %x\n", @@ -267,7 +198,6 @@ static void msi_wmi_notify(u32 value, void *context) static int __init msi_wmi_input_setup(void) { - struct key_entry *key; int err; msi_wmi_input_dev = input_allocate_device(); @@ -277,26 +207,25 @@ static int __init msi_wmi_input_setup(void) msi_wmi_input_dev->name = "MSI WMI hotkeys"; msi_wmi_input_dev->phys = "wmi/input0"; msi_wmi_input_dev->id.bustype = BUS_HOST; - msi_wmi_input_dev->getkeycode = msi_wmi_getkeycode; - msi_wmi_input_dev->setkeycode = msi_wmi_setkeycode; - - for (key = msi_wmi_keymap; key->type != KE_END; key++) { - switch (key->type) { - case KE_KEY: - set_bit(EV_KEY, msi_wmi_input_dev->evbit); - set_bit(key->keycode, msi_wmi_input_dev->keybit); - break; - } - } + + err = sparse_keymap_setup(msi_wmi_input_dev, msi_wmi_keymap, NULL); + if (err) + goto err_free_dev; err = input_register_device(msi_wmi_input_dev); - if (err) { - input_free_device(msi_wmi_input_dev); - return err; - } + if (err) + goto err_free_keymap; + + memset(last_pressed, 0, sizeof(last_pressed)); return 0; + +err_free_keymap: + sparse_keymap_free(msi_wmi_input_dev); +err_free_dev: + input_free_device(msi_wmi_input_dev); + return err; } static int __init msi_wmi_init(void) @@ -347,6 +276,7 @@ static void __exit msi_wmi_exit(void) { if (wmi_has_guid(MSIWMI_EVENT_GUID)) { wmi_remove_notify_handler(MSIWMI_EVENT_GUID); + sparse_keymap_free(msi_wmi_input_dev); input_unregister_device(msi_wmi_input_dev); backlight_device_unregister(backlight); } -- 2.30.2