14  * Initial port from lirc driver to ir-core drivery by Jarod, based
15  * partially on a port to an earlier proposed IR infrastructure by
17  * incoming IR buffer parsing routines.
22  * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf
45 #define MCE_IRBUF_SIZE		128  /* TX IR buffer length */
50 #define MCE_IRDATA_TRAILER	0x80 /* End of IR data */
58  * The interface between the host and the IR hardware is command-response
76 #define MCE_CMD_PORT_IR		0x9f	/* IR-related cmd/rsp */
77 #define MCE_CMD_PORT_SYS	0xff	/* System (non-IR) device cmd/rsp */
138  * then we're looking at a raw IR data sample */
195 	 * 2nd IR receiver (short-range, wideband) for learning mode:
198 	 *     2, rx2 which under counts IR carrier cycles
249 		.name = "Conexant Hybrid TV (cx231xx) MCE IR",
254 		.name = "Conexant Hybrid TV (cx231xx) MCE IR",
258 		.name = "Conexant Hybrid TV (cx231xx) MCE IR no TX",
283 	/* Original Microsoft MCE IR Transceiver (often HP-branded) */
299 	/* Philips/Spinel plus IR transceiver for ASUS */
301 	/* Philips/Spinel plus IR transceiver for ASUS */
303 	/* Philips IR transceiver (Dell branded) */
306 	/* Realtek MCE IR Receiver and card reader */
391 	/* Elitegroup Computer Systems IR */
401 	/* TiVo PC IR Receiver */
453 	/* ir-core bits */
483 	u8 cmd, rem;		/* Remaining IR data bytes in packet */
510 	u32 pulse_tunit;	/* IR pulse "on" cumulative time units */
596 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len,  in mceusb_dev_printdata()  argument
602 	struct device *dev = ir->dev;  in mceusb_dev_printdata()
607 	if (ir->flags.microsoft_gen1 && !out && !offset)  in mceusb_dev_printdata()
738 			dev_dbg(dev, "IR TX timeout (TX buffer underrun)");  in mceusb_dev_printdata()
751 		dev_dbg(dev, "End of raw IR data");  in mceusb_dev_printdata()
754 		dev_dbg(dev, "Raw IR data, %d pulse/space samples",  in mceusb_dev_printdata()
765 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent)  in mceusb_defer_kevent()  argument
767 	set_bit(kevent, &ir->kevent_flags);  in mceusb_defer_kevent()
769 	if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) {  in mceusb_defer_kevent()
770 		dev_dbg(ir->dev, "kevent %d dropped pending USB Reset Device",  in mceusb_defer_kevent()
775 	if (!schedule_work(&ir->kevent))  in mceusb_defer_kevent()
776 		dev_dbg(ir->dev, "kevent %d already scheduled", kevent);  in mceusb_defer_kevent()
778 		dev_dbg(ir->dev, "kevent %d scheduled", kevent);  in mceusb_defer_kevent()
791  * Used for IR blaster TX and MCE device commands.
795 static int mce_write(struct mceusb_dev *ir, u8 *data, int size)  in mce_write()  argument
799 	struct device *dev = ir->dev;  in mce_write()
805 	mceusb_dev_printdata(ir, data, size, 0, size, true);  in mce_write()
822 	if (usb_endpoint_xfer_int(ir->usb_ep_out))  in mce_write()
823 		usb_fill_int_urb(urb, ir->usbdev, ir->pipe_out,  in mce_write()
825 				 ir->usb_ep_out->bInterval);  in mce_write()
827 		usb_fill_bulk_urb(urb, ir->usbdev, ir->pipe_out,  in mce_write()
864 		dev_err(ir->dev, "Error: mce write urb status = %d (TX HALT)",  in mce_write()
866 		mceusb_defer_kevent(ir, EVENT_TX_HALT);  in mce_write()
870 		dev_err(ir->dev, "Error: mce write urb status = %d",  in mce_write()
885 static void mce_command_out(struct mceusb_dev *ir, u8 *data, int size)  in mce_command_out()  argument
889 	if (ir->need_reset) {  in mce_command_out()
890 		ir->need_reset = false;  in mce_command_out()
891 		mce_write(ir, DEVICE_RESUME, rsize);  in mce_command_out()
895 	mce_write(ir, data, size);  in mce_command_out()
900  * Transmit IR out the MCE device IR blaster port(s).
902  * Convert IR pulse/space sequence from LIRC to MCE format.
903  * Break up a long IR sequence into multiple parts (MCE IR data packets).
905  * u32 txbuf[] consists of IR pulse, space, ..., and pulse times in usec.
907  * The first IR sample, txbuf[0], is always a pulse.
909  * u8 irbuf[] consists of multiple IR data packets for the MCE device.
910  * A packet is 1 u8 MCE_IRDATA_HEADER and up to 30 u8 IR samples.
911  * An IR sample is 1-bit pulse/space flag with 7-bit time
914  * Return: The number of IR samples sent (> 0) or errno (< 0).
918 	struct mceusb_dev *ir = dev->priv;  in mceusb_tx_ir()  local
926 	cmdbuf[2] = ir->tx_mask;  in mceusb_tx_ir()
927 	mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_tx_ir()
929 	/* Generate mce IR data packet */  in mceusb_tx_ir()
935 			/* Insert IR header every 30th entry */  in mceusb_tx_ir()
937 				/* Room for IR header and one IR sample? */  in mceusb_tx_ir()
940 					ret = mce_write(ir, irbuf, ircount);  in mceusb_tx_ir()
948 			/* Insert IR sample */  in mceusb_tx_ir()
957 			 * Even i = IR pulse  in mceusb_tx_ir()
958 			 * Odd  i = IR space  in mceusb_tx_ir()
963 			/* IR buffer full? */  in mceusb_tx_ir()
971 				ret = mce_write(ir, irbuf, ircount);  in mceusb_tx_ir()
984 	/* Append IR trailer (0x80) to final partial (or empty) IR buffer */  in mceusb_tx_ir()
988 	ret = mce_write(ir, irbuf, ircount);  in mceusb_tx_ir()
995 /* Sets active IR outputs -- mce devices typically have two */
998 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_tx_mask()  local
1001 	int emitters = ir->num_txports ? ir->num_txports : 2;  in mceusb_set_tx_mask()
1006 	if (ir->flags.tx_mask_normal)  in mceusb_set_tx_mask()
1007 		ir->tx_mask = mask;  in mceusb_set_tx_mask()
1009 		ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?  in mceusb_set_tx_mask()
1018 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_tx_carrier()  local
1025 	if (ir->carrier != carrier) {  in mceusb_set_tx_carrier()
1028 			ir->carrier = carrier;  in mceusb_set_tx_carrier()
1031 			dev_dbg(ir->dev, "disabling carrier modulation");  in mceusb_set_tx_carrier()
1032 			mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_tx_carrier()
1039 				ir->carrier = carrier;  in mceusb_set_tx_carrier()
1042 				dev_dbg(ir->dev, "requesting %u HZ carrier",  in mceusb_set_tx_carrier()
1046 				mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_tx_carrier()
1061 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_timeout()  local
1069 	mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_timeout()
1072 	mce_command_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));  in mceusb_set_timeout()
1084 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_rx_wideband()  local
1088 	dev_dbg(ir->dev, "select %s-range receive sensor",  in mceusb_set_rx_wideband()
1091 		ir->wideband_rx_enabled = true;  in mceusb_set_rx_wideband()
1094 		ir->wideband_rx_enabled = false;  in mceusb_set_rx_wideband()
1097 	mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_wideband()
1098 	/* response from device sets ir->learning_active */  in mceusb_set_rx_wideband()
1110 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_rx_carrier_report()  local
1114 	dev_dbg(ir->dev, "%s short-range receiver carrier reporting",  in mceusb_set_rx_carrier_report()
1117 		ir->carrier_report_enabled = true;  in mceusb_set_rx_carrier_report()
1118 		if (!ir->learning_active) {  in mceusb_set_rx_carrier_report()
1120 			mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_carrier_report()
1123 		ir->carrier_report_enabled = false;  in mceusb_set_rx_carrier_report()
1129 		if (ir->learning_active && !ir->wideband_rx_enabled) {  in mceusb_set_rx_carrier_report()
1131 			mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_carrier_report()
1143 static void mceusb_handle_command(struct mceusb_dev *ir, int index)  in mceusb_handle_command()  argument
1146 	u8 hi = ir->buf_in[index + 1] & 0xff;  in mceusb_handle_command()
1147 	u8 lo = ir->buf_in[index + 2] & 0xff;  in mceusb_handle_command()
1151 	switch (ir->buf_in[index]) {  in mceusb_handle_command()
1154 		if ((ir->buf_in[index + 4] & 0xff) == 0x00)  in mceusb_handle_command()
1155 			ir->txports_cabled |= 1 << hi;  in mceusb_handle_command()
1160 		ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);  in mceusb_handle_command()
1163 		ir->num_txports = hi;  in mceusb_handle_command()
1164 		ir->num_rxports = lo;  in mceusb_handle_command()
1170 		 * will be inaccurate with long duration IR.  in mceusb_handle_command()
1175 		if (ir->carrier_report_enabled && ir->learning_active &&  in mceusb_handle_command()
1176 		    ir->pulse_tunit > 0) {  in mceusb_handle_command()
1182 			cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0;  in mceusb_handle_command()
1186 					ir->pulse_tunit;  in mceusb_handle_command()
1187 …dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = …  in mceusb_handle_command()
1188 				rawir.carrier, ir->pulse_count, carrier_cycles,  in mceusb_handle_command()
1189 				ir->pulse_tunit, ir->flags.rx2);  in mceusb_handle_command()
1190 			ir_raw_event_store(ir->rc, &rawir);  in mceusb_handle_command()
1196 		ir->emver = hi;  in mceusb_handle_command()
1199 		ir->tx_mask = hi;  in mceusb_handle_command()
1202 		ir->learning_active = ((hi & 0x02) == 0x02);  in mceusb_handle_command()
1203 		if (ir->rxports_active != hi) {  in mceusb_handle_command()
1204 			dev_info(ir->dev, "%s-range (0x%x) receiver active",  in mceusb_handle_command()
1205 				 ir->learning_active ? "short" : "long", hi);  in mceusb_handle_command()
1206 			ir->rxports_active = hi;  in mceusb_handle_command()
1211 		ir->need_reset = true;  in mceusb_handle_command()
1218 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)  in mceusb_process_ir_data()  argument
1225 	if (ir->flags.microsoft_gen1)  in mceusb_process_ir_data()
1233 		switch (ir->parser_state) {  in mceusb_process_ir_data()
1235 			ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]);  in mceusb_process_ir_data()
1236 			mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1,  in mceusb_process_ir_data()
1237 					     ir->rem + 2, false);  in mceusb_process_ir_data()
1238 			mceusb_handle_command(ir, i);  in mceusb_process_ir_data()
1239 			ir->parser_state = CMD_DATA;  in mceusb_process_ir_data()
1242 			ir->rem--;  in mceusb_process_ir_data()
1243 			rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);  in mceusb_process_ir_data()
1244 			rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK);  in mceusb_process_ir_data()
1246 				dev_dbg(ir->dev, "nonsensical irdata %02x with duration 0",  in mceusb_process_ir_data()
1247 					ir->buf_in[i]);  in mceusb_process_ir_data()
1251 				ir->pulse_tunit += rawir.duration;  in mceusb_process_ir_data()
1252 				ir->pulse_count++;  in mceusb_process_ir_data()
1256 			dev_dbg(ir->dev, "Storing %s %u ns (%02x)",  in mceusb_process_ir_data()
1258 				rawir.duration,	ir->buf_in[i]);  in mceusb_process_ir_data()
1260 			if (ir_raw_event_store_with_filter(ir->rc, &rawir))  in mceusb_process_ir_data()
1264 			ir->rem--;  in mceusb_process_ir_data()
1268 			/* IR data packets can span USB messages - rem */  in mceusb_process_ir_data()
1269 			ir->cmd = ir->buf_in[i];  in mceusb_process_ir_data()
1270 			if ((ir->cmd == MCE_CMD_PORT_IR) ||  in mceusb_process_ir_data()
1271 			    ((ir->cmd & MCE_PORT_MASK) !=  in mceusb_process_ir_data()
1273 				ir->parser_state = SUBCMD;  in mceusb_process_ir_data()
1276 			ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);  in mceusb_process_ir_data()
1277 			mceusb_dev_printdata(ir, ir->buf_in, buf_len,  in mceusb_process_ir_data()
1278 					     i, ir->rem + 1, false);  in mceusb_process_ir_data()
1279 			if (ir->rem) {  in mceusb_process_ir_data()
1280 				ir->parser_state = PARSE_IRDATA;  in mceusb_process_ir_data()
1284 					.duration = ir->rc->timeout  in mceusb_process_ir_data()
1287 				if (ir_raw_event_store_with_filter(ir->rc,  in mceusb_process_ir_data()
1290 				ir->pulse_tunit = 0;  in mceusb_process_ir_data()
1291 				ir->pulse_count = 0;  in mceusb_process_ir_data()
1296 		if (ir->parser_state != CMD_HEADER && !ir->rem)  in mceusb_process_ir_data()
1297 			ir->parser_state = CMD_HEADER;  in mceusb_process_ir_data()
1300 		dev_dbg(ir->dev, "processed IR data");  in mceusb_process_ir_data()
1301 		ir_raw_event_handle(ir->rc);  in mceusb_process_ir_data()
1307 	struct mceusb_dev *ir;  in mceusb_dev_recv()  local
1312 	ir = urb->context;  in mceusb_dev_recv()
1313 	if (!ir) {  in mceusb_dev_recv()
1321 		mceusb_process_ir_data(ir, urb->actual_length);  in mceusb_dev_recv()
1332 		dev_err(ir->dev, "Error: urb status = %d (RX HALT)",  in mceusb_dev_recv()
1334 		mceusb_defer_kevent(ir, EVENT_RX_HALT);  in mceusb_dev_recv()
1338 		dev_err(ir->dev, "Error: urb status = %d", urb->status);  in mceusb_dev_recv()
1345 static void mceusb_get_emulator_version(struct mceusb_dev *ir)  in mceusb_get_emulator_version()  argument
1348 	ir->emver = 1;  in mceusb_get_emulator_version()
1349 	mce_command_out(ir, GET_EMVER, sizeof(GET_EMVER));  in mceusb_get_emulator_version()
1352 static void mceusb_gen1_init(struct mceusb_dev *ir)  in mceusb_gen1_init()  argument
1355 	struct device *dev = ir->dev;  in mceusb_gen1_init()
1368 	ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1376 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1383 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1389 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1395 	mce_command_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));  in mceusb_gen1_init()
1398 	mce_command_out(ir, GET_REVISION, sizeof(GET_REVISION));  in mceusb_gen1_init()
1403 static void mceusb_gen2_init(struct mceusb_dev *ir)  in mceusb_gen2_init()  argument
1406 	mce_command_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));  in mceusb_gen2_init()
1409 	mce_command_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));  in mceusb_gen2_init()
1412 	mce_command_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));  in mceusb_gen2_init()
1415 static void mceusb_get_parameters(struct mceusb_dev *ir)  in mceusb_get_parameters()  argument
1422 	ir->num_txports = 2;  in mceusb_get_parameters()
1423 	ir->num_rxports = 2;  in mceusb_get_parameters()
1426 	mce_command_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));  in mceusb_get_parameters()
1429 	mce_command_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));  in mceusb_get_parameters()
1431 	if (ir->num_txports && !ir->flags.no_tx)  in mceusb_get_parameters()
1433 		mce_command_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));  in mceusb_get_parameters()
1436 	mce_command_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));  in mceusb_get_parameters()
1439 	mce_command_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));  in mceusb_get_parameters()
1441 	for (i = 0; i < ir->num_txports; i++) {  in mceusb_get_parameters()
1443 		mce_command_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_get_parameters()
1447 static void mceusb_flash_led(struct mceusb_dev *ir)  in mceusb_flash_led()  argument
1449 	if (ir->emver < 2)  in mceusb_flash_led()
1452 	mce_command_out(ir, FLASH_LED, sizeof(FLASH_LED));  in mceusb_flash_led()
1458  * specified in ir->kevent bit field.
1464 	struct mceusb_dev *ir =  in mceusb_deferred_kevent()  local
1468 	dev_err(ir->dev, "kevent handler called (flags 0x%lx)",  in mceusb_deferred_kevent()
1469 		ir->kevent_flags);  in mceusb_deferred_kevent()
1471 	if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) {  in mceusb_deferred_kevent()
1472 		dev_err(ir->dev, "kevent handler canceled pending USB Reset Device");  in mceusb_deferred_kevent()
1476 	if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) {  in mceusb_deferred_kevent()
1477 		usb_unlink_urb(ir->urb_in);  in mceusb_deferred_kevent()
1478 		status = usb_clear_halt(ir->usbdev, ir->pipe_in);  in mceusb_deferred_kevent()
1479 		dev_err(ir->dev, "rx clear halt status = %d", status);  in mceusb_deferred_kevent()
1485 			dev_err(ir->dev,  in mceusb_deferred_kevent()
1487 			usb_queue_reset_device(ir->usbintf);  in mceusb_deferred_kevent()
1488 			set_bit(EVENT_RST_PEND, &ir->kevent_flags);  in mceusb_deferred_kevent()
1489 			clear_bit(EVENT_RX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1492 			clear_bit(EVENT_TX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1495 		clear_bit(EVENT_RX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1496 		status = usb_submit_urb(ir->urb_in, GFP_KERNEL);  in mceusb_deferred_kevent()
1498 			dev_err(ir->dev, "rx unhalt submit urb error = %d",  in mceusb_deferred_kevent()
1503 	if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) {  in mceusb_deferred_kevent()
1504 		status = usb_clear_halt(ir->usbdev, ir->pipe_out);  in mceusb_deferred_kevent()
1505 		dev_err(ir->dev, "tx clear halt status = %d", status);  in mceusb_deferred_kevent()
1511 			dev_err(ir->dev,  in mceusb_deferred_kevent()
1513 			usb_queue_reset_device(ir->usbintf);  in mceusb_deferred_kevent()
1514 			set_bit(EVENT_RST_PEND, &ir->kevent_flags);  in mceusb_deferred_kevent()
1515 			clear_bit(EVENT_TX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1518 			clear_bit(EVENT_RX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1521 		clear_bit(EVENT_TX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1525 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)  in mceusb_init_rc_dev()  argument
1527 	struct usb_device *udev = ir->usbdev;  in mceusb_init_rc_dev()
1528 	struct device *dev = ir->dev;  in mceusb_init_rc_dev()
1538 	snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",  in mceusb_init_rc_dev()
1539 		 mceusb_model[ir->model].name ?  in mceusb_init_rc_dev()
1540 			mceusb_model[ir->model].name :  in mceusb_init_rc_dev()
1542 		 le16_to_cpu(ir->usbdev->descriptor.idVendor),  in mceusb_init_rc_dev()
1543 		 le16_to_cpu(ir->usbdev->descriptor.idProduct));  in mceusb_init_rc_dev()
1545 	usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));  in mceusb_init_rc_dev()
1547 	rc->device_name = ir->name;  in mceusb_init_rc_dev()
1548 	rc->input_phys = ir->phys;  in mceusb_init_rc_dev()
1549 	usb_to_input_id(ir->usbdev, &rc->input_id);  in mceusb_init_rc_dev()
1551 	rc->priv = ir;  in mceusb_init_rc_dev()
1555 	if (!mceusb_model[ir->model].broken_irtimeout) {  in mceusb_init_rc_dev()
1565 	if (!ir->flags.no_tx) {  in mceusb_init_rc_dev()
1570 	if (ir->flags.rx2 > 0) {  in mceusb_init_rc_dev()
1586 	if (mceusb_model[ir->model].rc_map)  in mceusb_init_rc_dev()
1587 		rc->map_name = mceusb_model[ir->model].rc_map;  in mceusb_init_rc_dev()
1610 	struct mceusb_dev *ir = NULL;  in mceusb_dev_probe()  local
1628 	/* There are multi-function devices with non-IR interfaces */  in mceusb_dev_probe()
1669 	ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);  in mceusb_dev_probe()
1670 	if (!ir)  in mceusb_dev_probe()
1673 	ir->pipe_in = pipe;  in mceusb_dev_probe()
1674 	ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);  in mceusb_dev_probe()
1675 	if (!ir->buf_in)  in mceusb_dev_probe()
1678 	ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);  in mceusb_dev_probe()
1679 	if (!ir->urb_in)  in mceusb_dev_probe()
1682 	ir->usbintf = intf;  in mceusb_dev_probe()
1683 	ir->usbdev = usb_get_dev(dev);  in mceusb_dev_probe()
1684 	ir->dev = &intf->dev;  in mceusb_dev_probe()
1685 	ir->len_in = maxp;  in mceusb_dev_probe()
1686 	ir->flags.microsoft_gen1 = is_microsoft_gen1;  in mceusb_dev_probe()
1687 	ir->flags.tx_mask_normal = tx_mask_normal;  in mceusb_dev_probe()
1688 	ir->flags.no_tx = mceusb_model[model].no_tx;  in mceusb_dev_probe()
1689 	ir->flags.rx2 = mceusb_model[model].rx2;  in mceusb_dev_probe()
1690 	ir->model = model;  in mceusb_dev_probe()
1693 	ir->usb_ep_out = ep_out;  in mceusb_dev_probe()
1695 		ir->pipe_out = usb_sndintpipe(ir->usbdev,  in mceusb_dev_probe()
1698 		ir->pipe_out = usb_sndbulkpipe(ir->usbdev,  in mceusb_dev_probe()
1715 	INIT_WORK(&ir->kevent, mceusb_deferred_kevent);  in mceusb_dev_probe()
1717 	ir->rc = mceusb_init_rc_dev(ir);  in mceusb_dev_probe()
1718 	if (!ir->rc)  in mceusb_dev_probe()
1723 		usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,  in mceusb_dev_probe()
1724 				 mceusb_dev_recv, ir, ep_in->bInterval);  in mceusb_dev_probe()
1726 		usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,  in mceusb_dev_probe()
1727 				  mceusb_dev_recv, ir);  in mceusb_dev_probe()
1729 	ir->urb_in->transfer_dma = ir->dma_in;  in mceusb_dev_probe()
1730 	ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in mceusb_dev_probe()
1734 	res = usb_submit_urb(ir->urb_in, GFP_KERNEL);  in mceusb_dev_probe()
1739 	mceusb_get_emulator_version(ir);  in mceusb_dev_probe()
1742 	if (ir->flags.microsoft_gen1)  in mceusb_dev_probe()
1743 		mceusb_gen1_init(ir);  in mceusb_dev_probe()
1745 		mceusb_gen2_init(ir);  in mceusb_dev_probe()
1747 	mceusb_get_parameters(ir);  in mceusb_dev_probe()
1749 	mceusb_flash_led(ir);  in mceusb_dev_probe()
1751 	if (!ir->flags.no_tx)  in mceusb_dev_probe()
1752 		mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);  in mceusb_dev_probe()
1754 	usb_set_intfdata(intf, ir);  in mceusb_dev_probe()
1757 	device_set_wakeup_capable(ir->dev, true);  in mceusb_dev_probe()
1758 	device_set_wakeup_enable(ir->dev, true);  in mceusb_dev_probe()
1761 		name, ir->emver);  in mceusb_dev_probe()
1763 		 ir->num_txports, ir->txports_cabled,  in mceusb_dev_probe()
1764 		 ir->num_rxports, ir->rxports_active);  in mceusb_dev_probe()
1770 	cancel_work_sync(&ir->kevent);  in mceusb_dev_probe()
1771 	usb_put_dev(ir->usbdev);  in mceusb_dev_probe()
1772 	usb_kill_urb(ir->urb_in);  in mceusb_dev_probe()
1773 	usb_free_urb(ir->urb_in);  in mceusb_dev_probe()
1775 	usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);  in mceusb_dev_probe()
1777 	kfree(ir);  in mceusb_dev_probe()
1788 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_disconnect()  local
1794 	if (!ir)  in mceusb_dev_disconnect()
1797 	ir->usbdev = NULL;  in mceusb_dev_disconnect()
1798 	cancel_work_sync(&ir->kevent);  in mceusb_dev_disconnect()
1799 	rc_unregister_device(ir->rc);  in mceusb_dev_disconnect()
1800 	usb_kill_urb(ir->urb_in);  in mceusb_dev_disconnect()
1801 	usb_free_urb(ir->urb_in);  in mceusb_dev_disconnect()
1802 	usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);  in mceusb_dev_disconnect()
1805 	kfree(ir);  in mceusb_dev_disconnect()
1810 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_suspend()  local
1811 	dev_info(ir->dev, "suspend");  in mceusb_dev_suspend()
1812 	usb_kill_urb(ir->urb_in);  in mceusb_dev_suspend()
1818 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_resume()  local
1819 	dev_info(ir->dev, "resume");  in mceusb_dev_resume()
1820 	if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))  in mceusb_dev_resume()