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ACPI: thinkpad-acpi: export EV_SW SW_RADIO events 

The expected user case for the radio slider switch on a ThinkPad includes
interfacing to applications, so that the user gets an offer to find and
associate with a wireless network when the switch is changed from disabled
to enabled (ThinkVantage suite).

Export the information about the switch state, and switch change events as
an EV_SW SW_RADIO event over the input layer.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Ivo van Doorn <ivdoorn@gmail.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Henrique de Moraes Holschuh 2007-07-18 23:45:38 -03:00 committed by Len Brown
parent e295e8508c
commit 5c29d58f47
1 changed files with 28 additions and 0 deletions
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28
drivers/misc/thinkpad_acpi.c
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@ -1014,6 +1014,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
}
}
if (tp_features.hotkey_wlsw) {
set_bit(EV_SW, tpacpi_inputdev->evbit);
set_bit(SW_RADIO, tpacpi_inputdev->swbit);
}
#ifdef CONFIG_THINKPAD_ACPI_INPUT_ENABLED
dbg_printk(TPACPI_DBG_INIT,
"enabling hot key handling\n");
@ -1062,6 +1067,15 @@ static void tpacpi_input_send_key(unsigned int scancode,
}
}
static void tpacpi_input_send_radiosw(void)
{
int wlsw;
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw))
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
@ -1096,6 +1110,14 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
hkey);
}
break;
case 7:
/* 0x7000-0x7FFF: misc */
if (tp_features.hotkey_wlsw && hkey == 0x7000) {
tpacpi_input_send_radiosw();
sendacpi = 0;
break;
}
/* fallthrough to default */
default:
/* case 2: dock-related */
/* 0x2305 - T43 waking up due to bay lever eject while aslept */
@ -1113,6 +1135,11 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
}
}
static void hotkey_resume(void)
{
tpacpi_input_send_radiosw();
}
/*
* Call with hotkey_mutex held
*/
@ -1240,6 +1267,7 @@ static struct ibm_struct hotkey_driver_data = {
.read = hotkey_read,
.write = hotkey_write,
.exit = hotkey_exit,
.resume = hotkey_resume,
.acpi = &ibm_hotkey_acpidriver,
};