rfkill: add the WiMAX radio type

Teach rfkill about wimax radios.

Had to define a KEY_WIMAX as a 'key for disabling only wimax radios',
as other radio technologies have. This makes sense as hardware has
specific keys for disabling specific radios.

The RFKILL enabling part is, otherwise, a copy and paste of any other
radio technology.
Signed-off-by: NInaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/input.h

@@ -371,6 +371,8 @@ struct input_absinfo {
 #define KEY_BRIGHTNESS_ZERO	244	/* brightness off, use ambient */
 #define KEY_DISPLAY_OFF		245	/* display device to off state */
 
+#define KEY_WIMAX		246
+
 #define BTN_MISC		0x100
 #define BTN_0			0x100
 #define BTN_1			0x101

include/linux/rfkill.h

@@ -33,11 +33,13 @@
  * RFKILL_TYPE_WLAN: switch is on a 802.11 wireless network device.
  * RFKILL_TYPE_BLUETOOTH: switch is on a bluetooth device.
  * RFKILL_TYPE_UWB: switch is on a ultra wideband device.
+ * RFKILL_TYPE_WIMAX: switch is on a WiMAX device.
  */
 enum rfkill_type {
 	RFKILL_TYPE_WLAN ,
 	RFKILL_TYPE_BLUETOOTH,
 	RFKILL_TYPE_UWB,
+	RFKILL_TYPE_WIMAX,
 	RFKILL_TYPE_MAX,
 };
 

net/rfkill/rfkill-input.c

@@ -84,6 +84,7 @@ static void rfkill_schedule_toggle(struct rfkill_task *task)
 static DEFINE_RFKILL_TASK(rfkill_wlan, RFKILL_TYPE_WLAN);
 static DEFINE_RFKILL_TASK(rfkill_bt, RFKILL_TYPE_BLUETOOTH);
 static DEFINE_RFKILL_TASK(rfkill_uwb, RFKILL_TYPE_UWB);
+static DEFINE_RFKILL_TASK(rfkill_wimax, RFKILL_TYPE_WIMAX);
 
 static void rfkill_event(struct input_handle *handle, unsigned int type,
 			unsigned int code, int down)
@@ -99,6 +100,9 @@ static void rfkill_event(struct input_handle *handle, unsigned int type,
 		case KEY_UWB:
 			rfkill_schedule_toggle(&rfkill_uwb);
 			break;
+		case KEY_WIMAX:
+			rfkill_schedule_toggle(&rfkill_wimax);
+			break;
 		default:
 			break;
 		}
@@ -159,6 +163,11 @@ static const struct input_device_id rfkill_ids[] = {
 		.evbit = { BIT_MASK(EV_KEY) },
 		.keybit = { [BIT_WORD(KEY_UWB)] = BIT_MASK(KEY_UWB) },
 	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_WIMAX)] = BIT_MASK(KEY_WIMAX) },
+	},
 	{ }
 };
 

net/rfkill/rfkill.c

@@ -126,6 +126,9 @@ static ssize_t rfkill_type_show(struct device *dev,
 	case RFKILL_TYPE_UWB:
 		type = "ultrawideband";
 		break;
+	case RFKILL_TYPE_WIMAX:
+		type = "wimax";
+		break;
 	default:
 		BUG();
 	}