V4L/DVB (9736): sms1xxx: enable power LED on Hauppauge WinTV MiniStick

Enable power LED while the frontend is in use.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/siano/sms-cards.c

@@ -168,3 +168,18 @@ int sms_board_setup(struct smscore_device_t *coredev)
 	}
 	return 0;
 }
+
+int sms_board_power(struct smscore_device_t *coredev, int onoff)
+{
+	int board_id = smscore_get_board_id(coredev);
+	struct sms_board *board = sms_get_board(board_id);
+
+	switch (board_id) {
+	case SMS1XXX_BOARD_HAUPPAUGE_WINDHAM:
+		/* power LED */
+		sms_set_gpio(coredev,
+			     board->led_power, onoff ? 1 : 0);
+		break;
+	}
+	return 0;
+}

drivers/media/dvb/siano/sms-cards.h

@@ -46,6 +46,8 @@ struct sms_board *sms_get_board(int id);
 
 int sms_board_setup(struct smscore_device_t *coredev);
 
+int sms_board_power(struct smscore_device_t *coredev, int onoff);
+
 extern struct usb_device_id smsusb_id_table[];
 
 #endif /* __SMS_CARDS_H__ */

drivers/media/dvb/siano/smsdvb.c

@@ -273,6 +273,27 @@ static int smsdvb_get_frontend(struct dvb_frontend *fe,
 	/* todo: */
 	memcpy(fep, &client->fe_params,
 	       sizeof(struct dvb_frontend_parameters));
+
+	return 0;
+}
+
+static int smsdvb_init(struct dvb_frontend *fe)
+{
+	struct smsdvb_client_t *client =
+		container_of(fe, struct smsdvb_client_t, frontend);
+
+	sms_board_power(client->coredev, 1);
+
+	return 0;
+}
+
+static int smsdvb_sleep(struct dvb_frontend *fe)
+{
+	struct smsdvb_client_t *client =
+		container_of(fe, struct smsdvb_client_t, frontend);
+
+	sms_board_power(client->coredev, 0);
+
 	return 0;
 }
 
@@ -308,6 +329,9 @@ static struct dvb_frontend_ops smsdvb_fe_ops = {
 	.read_ber = smsdvb_read_ber,
 	.read_signal_strength = smsdvb_read_signal_strength,
 	.read_snr = smsdvb_read_snr,
+
+	.init = smsdvb_init,
+	.sleep = smsdvb_sleep,
 };
 
 static int smsdvb_hotplug(struct smscore_device_t *coredev,