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Commit 5c29d58f authored by Henrique de Moraes Holschuh's avatar Henrique de Moraes Holschuh Committed by Len Brown
Browse files

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: default avatarHenrique 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: default avatarLen Brown <len.brown@intel.com>
parent e295e850

drivers/misc/thinkpad_acpi.c

+28 −0
Original line number Diff line number Diff line
@@ -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,

};