[49/80] x86 platform drivers: hp-wmi Reorder event id processing

Greg KH
2010-09-24T16:28:43Z

From: Thomas Renninger <trenn@suse.de>

commit 751ae808f6b29803228609f51aa1ae057f5c576e upstream.

Event id 0x4 defines the hotkey event.
No need (or even wrong) to query HPWMI_HOTKEY_QUERY if event id is != 0x4.

Reorder the eventcode conditionals and use switch case instead of if/else.
Use an enum for the event ids cases.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
CC: linux-acpi@vger.kernel.org
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/platform/x86/hp-wmi.c | 51 ++++++++++++++++++++++++++----------------
1 file changed, 32 insertions(+), 19 deletions(-)

--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -58,6 +58,12 @@ enum hp_wmi_radio {
HPWMI_WWAN = 2,
};

+enum hp_wmi_event_ids {
+ HPWMI_DOCK_EVENT = 1,
+ HPWMI_BEZEL_BUTTON = 4,
+ HPWMI_WIRELESS = 5,
+};
+
static int __devinit hp_wmi_bios_setup(struct platform_device *device);
static int __exit hp_wmi_bios_remove(struct platform_device *device);
static int hp_wmi_resume_handler(struct device *device);
@@ -338,7 +344,7 @@ static void hp_wmi_notify(u32 value, voi
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
static struct key_entry *key;
union acpi_object *obj;
- int eventcode;
+ int eventcode, key_code;
acpi_status status;

status = wmi_get_event_data(value, &response);
@@ -357,28 +363,32 @@ static void hp_wmi_notify(u32 value, voi

eventcode = *((u8 *) obj->buffer.pointer);
kfree(obj);
- if (eventcode == 0x4)
- eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
- 0);
- key = hp_wmi_get_entry_by_scancode(eventcode);
- if (key) {
- switch (key->type) {
- case KE_KEY:
- input_report_key(hp_wmi_input_dev,
- key->keycode, 1);
- input_sync(hp_wmi_input_dev);
- input_report_key(hp_wmi_input_dev,
- key->keycode, 0);
- input_sync(hp_wmi_input_dev);
- break;
- }
- } else if (eventcode == 0x1) {
+ switch (eventcode) {
+ case HPWMI_DOCK_EVENT:
input_report_switch(hp_wmi_input_dev, SW_DOCK,
hp_wmi_dock_state());
input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
hp_wmi_tablet_state());
input_sync(hp_wmi_input_dev);
- } else if (eventcode == 0x5) {
+ break;
+ case HPWMI_BEZEL_BUTTON:
+ key_code = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
+ 0);
+ key = hp_wmi_get_entry_by_scancode(key_code);
+ if (key) {
+ switch (key->type) {
+ case KE_KEY:
+ input_report_key(hp_wmi_input_dev,
+ key->keycode, 1);
+ input_sync(hp_wmi_input_dev);
+ input_report_key(hp_wmi_input_dev,
+ key->keycode, 0);
+ input_sync(hp_wmi_input_dev);
+ break;
+ }
+ }
+ break;
+ case HPWMI_WIRELESS:
if (wifi_rfkill)
rfkill_set_states(wifi_rfkill,
hp_wmi_get_sw_state(HPWMI_WIFI),
@@ -391,9 +401,12 @@ static void hp_wmi_notify(u32 value, voi
rfkill_set_states(wwan_rfkill,
hp_wmi_get_sw_state(HPWMI_WWAN),
hp_wmi_get_hw_state(HPWMI_WWAN));
- } else
+ break;
+ default:
printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n",
eventcode);
+ break;
+ }
}

static int __init hp_wmi_input_setup(void)