Lines Matching +full:write +full:- +full:1 +full:- +full:bps
1 // SPDX-License-Identifier: GPL-2.0+
10 * See Documentation/usb/usb-serial.rst for more information on using this
51 /* write buffer size defines */
97 int cmd_ctrl; /* always set this to 1 before issuing a command */
98 struct kfifo write_fifo; /* write fifo */
99 int write_urb_in_use; /* write urb in use indicator */
100 int write_urb_interval; /* interval to use for write urb */
104 __u8 current_status; /* received from last read - info on dsr,cts,cd,ri,etc */
106 __u8 rx_flags; /* throttling - used from whiteheat/ftdi_sio */
146 .num_ports = 1,
152 .write = cypress_write,
170 .description = "HID->COM RS232 Adapter",
172 .num_ports = 1,
178 .write = cypress_write,
195 .description = "Nokia CA-42 V2 Adapter",
197 .num_ports = 1,
203 .write = cypress_write,
228 return ((le16_to_cpu(dev->descriptor.idVendor) == VENDOR_ID_FRWD) && in is_frwd()
229 (le16_to_cpu(dev->descriptor.idProduct) == PRODUCT_ID_CYPHIDCOM_FRWD)); in is_frwd()
240 /* FRWD Dongle uses 115200 bps */ in analyze_baud_rate()
241 if (is_frwd(port->serial->dev)) in analyze_baud_rate()
246 * a maximum speed of 57600bps (I have no idea whether DeLorme in analyze_baud_rate()
250 * The Cypress HID->COM device will work successfully up to in analyze_baud_rate()
251 * 115200bps (but the actual throughput is around 3kBps). in analyze_baud_rate()
253 if (port->serial->dev->speed == USB_SPEED_LOW) { in analyze_baud_rate()
255 * Mike Isely <[email protected]> 2-Feb-2008: The in analyze_baud_rate()
257 * states that the low-speed part can't handle more in analyze_baud_rate()
262 dev_dbg(&port->dev, in analyze_baud_rate()
263 "%s - failed setting baud rate, device incapable speed %d\n", in analyze_baud_rate()
265 return -1; in analyze_baud_rate()
268 switch (priv->chiptype) { in analyze_baud_rate()
274 dev_dbg(&port->dev, in analyze_baud_rate()
275 "%s - failed setting baud rate, unsupported speed of %d on Earthmate GPS\n", in analyze_baud_rate()
277 return -1; in analyze_baud_rate()
295 struct device *dev = &port->dev; in cypress_serial_control()
302 if (!priv->comm_is_ok) in cypress_serial_control()
303 return -ENODEV; in cypress_serial_control()
307 return -ENOMEM; in cypress_serial_control()
312 new_baudrate = priv->baud_rate; in cypress_serial_control()
313 if (baud_rate && baud_rate != priv->baud_rate) { in cypress_serial_control()
314 dev_dbg(dev, "%s - baud rate is changing\n", __func__); in cypress_serial_control()
318 dev_dbg(dev, "%s - New baud rate set to %d\n", in cypress_serial_control()
322 dev_dbg(dev, "%s - baud rate is being sent as %d\n", __func__, in cypress_serial_control()
327 feature_buffer[4] |= data_bits - 5; /* assign data bits in 2 bit space ( max 3 ) */ in cypress_serial_control()
328 /* 1 bit gap */ in cypress_serial_control()
329 feature_buffer[4] |= (stop_bits << 3); /* assign stop bits in 1 bit space */ in cypress_serial_control()
330 feature_buffer[4] |= (parity_enable << 4); /* assign parity flag in 1 bit space */ in cypress_serial_control()
331 feature_buffer[4] |= (parity_type << 5); /* assign parity type in 1 bit space */ in cypress_serial_control()
332 /* 1 bit gap */ in cypress_serial_control()
333 feature_buffer[4] |= (reset << 7); /* assign reset at end of byte, 1 bit space */ in cypress_serial_control()
335 dev_dbg(dev, "%s - device is being sent this feature report:\n", __func__); in cypress_serial_control()
336 dev_dbg(dev, "%s - %02X - %02X - %02X - %02X - %02X\n", __func__, in cypress_serial_control()
337 feature_buffer[0], feature_buffer[1], in cypress_serial_control()
342 retval = usb_control_msg(port->serial->dev, in cypress_serial_control()
343 usb_sndctrlpipe(port->serial->dev, 0), in cypress_serial_control()
353 retval != -ENODEV); in cypress_serial_control()
356 dev_err(dev, "%s - failed sending serial line settings - %d\n", in cypress_serial_control()
360 spin_lock_irqsave(&priv->lock, flags); in cypress_serial_control()
361 priv->baud_rate = new_baudrate; in cypress_serial_control()
362 priv->current_config = feature_buffer[4]; in cypress_serial_control()
363 spin_unlock_irqrestore(&priv->lock, flags); in cypress_serial_control()
371 if (priv->get_cfg_unsafe) { in cypress_serial_control()
375 retval = -ENOTTY; in cypress_serial_control()
378 dev_dbg(dev, "%s - retrieving serial line settings\n", __func__); in cypress_serial_control()
380 retval = usb_control_msg(port->serial->dev, in cypress_serial_control()
381 usb_rcvctrlpipe(port->serial->dev, 0), in cypress_serial_control()
390 && retval != -ENODEV); in cypress_serial_control()
393 dev_err(dev, "%s - failed to retrieve serial line settings - %d\n", in cypress_serial_control()
398 spin_lock_irqsave(&priv->lock, flags); in cypress_serial_control()
401 priv->current_config = feature_buffer[4]; in cypress_serial_control()
402 priv->baud_rate = get_unaligned_le32(feature_buffer); in cypress_serial_control()
403 spin_unlock_irqrestore(&priv->lock, flags); in cypress_serial_control()
406 spin_lock_irqsave(&priv->lock, flags); in cypress_serial_control()
407 ++priv->cmd_count; in cypress_serial_control()
408 spin_unlock_irqrestore(&priv->lock, flags); in cypress_serial_control()
420 spin_lock_irqsave(&priv->lock, flags); in cypress_set_dead()
421 if (!priv->comm_is_ok) { in cypress_set_dead()
422 spin_unlock_irqrestore(&priv->lock, flags); in cypress_set_dead()
425 priv->comm_is_ok = 0; in cypress_set_dead()
426 spin_unlock_irqrestore(&priv->lock, flags); in cypress_set_dead()
428 dev_err(&port->dev, "cypress_m8 suspending failing port %d - " in cypress_set_dead()
429 "interval might be too short\n", port->port_number); in cypress_set_dead()
440 struct usb_serial *serial = port->serial; in cypress_generic_port_probe()
443 if (!port->interrupt_out_urb || !port->interrupt_in_urb) { in cypress_generic_port_probe()
444 dev_err(&port->dev, "required endpoint is missing\n"); in cypress_generic_port_probe()
445 return -ENODEV; in cypress_generic_port_probe()
450 return -ENOMEM; in cypress_generic_port_probe()
452 priv->comm_is_ok = !0; in cypress_generic_port_probe()
453 spin_lock_init(&priv->lock); in cypress_generic_port_probe()
454 if (kfifo_alloc(&priv->write_fifo, CYPRESS_BUF_SIZE, GFP_KERNEL)) { in cypress_generic_port_probe()
456 return -ENOMEM; in cypress_generic_port_probe()
462 if (!is_frwd(serial->dev)) in cypress_generic_port_probe()
463 usb_reset_configuration(serial->dev); in cypress_generic_port_probe()
465 priv->cmd_ctrl = 0; in cypress_generic_port_probe()
466 priv->line_control = 0; in cypress_generic_port_probe()
467 priv->rx_flags = 0; in cypress_generic_port_probe()
474 if (port->interrupt_out_size > 9) in cypress_generic_port_probe()
475 priv->pkt_fmt = packet_format_1; in cypress_generic_port_probe()
477 priv->pkt_fmt = packet_format_2; in cypress_generic_port_probe()
480 priv->write_urb_interval = interval; in cypress_generic_port_probe()
481 priv->read_urb_interval = interval; in cypress_generic_port_probe()
482 dev_dbg(&port->dev, "%s - read & write intervals forced to %d\n", in cypress_generic_port_probe()
485 priv->write_urb_interval = port->interrupt_out_urb->interval; in cypress_generic_port_probe()
486 priv->read_urb_interval = port->interrupt_in_urb->interval; in cypress_generic_port_probe()
487 dev_dbg(&port->dev, "%s - intervals: read=%d write=%d\n", in cypress_generic_port_probe()
488 __func__, priv->read_urb_interval, in cypress_generic_port_probe()
489 priv->write_urb_interval); in cypress_generic_port_probe()
493 port->port.drain_delay = 256; in cypress_generic_port_probe()
501 struct usb_serial *serial = port->serial; in cypress_earthmate_port_probe()
507 dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__); in cypress_earthmate_port_probe()
512 priv->chiptype = CT_EARTHMATE; in cypress_earthmate_port_probe()
513 /* All Earthmate devices use the separated-count packet in cypress_earthmate_port_probe()
515 priv->pkt_fmt = packet_format_1; in cypress_earthmate_port_probe()
516 if (serial->dev->descriptor.idProduct != in cypress_earthmate_port_probe()
521 attempted :-( */ in cypress_earthmate_port_probe()
522 dev_dbg(&port->dev, in cypress_earthmate_port_probe()
523 "%s - Marking this device as unsafe for GET_CONFIG commands\n", in cypress_earthmate_port_probe()
525 priv->get_cfg_unsafe = !0; in cypress_earthmate_port_probe()
538 dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__); in cypress_hidcom_port_probe()
543 priv->chiptype = CT_CYPHIDCOM; in cypress_hidcom_port_probe()
555 dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__); in cypress_ca42v2_port_probe()
560 priv->chiptype = CT_CA42V2; in cypress_ca42v2_port_probe()
571 kfifo_free(&priv->write_fifo); in cypress_port_remove()
578 struct usb_serial *serial = port->serial; in cypress_open()
582 if (!priv->comm_is_ok) in cypress_open()
583 return -EIO; in cypress_open()
586 usb_clear_halt(serial->dev, 0x81); in cypress_open()
587 usb_clear_halt(serial->dev, 0x02); in cypress_open()
589 spin_lock_irqsave(&priv->lock, flags); in cypress_open()
590 /* reset read/write statistics */ in cypress_open()
591 priv->bytes_in = 0; in cypress_open()
592 priv->bytes_out = 0; in cypress_open()
593 priv->cmd_count = 0; in cypress_open()
594 priv->rx_flags = 0; in cypress_open()
595 spin_unlock_irqrestore(&priv->lock, flags); in cypress_open()
604 usb_fill_int_urb(port->interrupt_in_urb, serial->dev, in cypress_open()
605 usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress), in cypress_open()
606 port->interrupt_in_urb->transfer_buffer, in cypress_open()
607 port->interrupt_in_urb->transfer_buffer_length, in cypress_open()
608 cypress_read_int_callback, port, priv->read_urb_interval); in cypress_open()
609 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); in cypress_open()
612 dev_err(&port->dev, in cypress_open()
613 "%s - failed submitting read urb, error %d\n", in cypress_open()
625 spin_lock_irq(&priv->lock); in cypress_dtr_rts()
627 priv->line_control = 0; in cypress_dtr_rts()
629 priv->line_control = CONTROL_DTR | CONTROL_RTS; in cypress_dtr_rts()
630 priv->cmd_ctrl = 1; in cypress_dtr_rts()
631 spin_unlock_irq(&priv->lock); in cypress_dtr_rts()
640 spin_lock_irqsave(&priv->lock, flags); in cypress_close()
641 kfifo_reset_out(&priv->write_fifo); in cypress_close()
642 spin_unlock_irqrestore(&priv->lock, flags); in cypress_close()
644 dev_dbg(&port->dev, "%s - stopping urbs\n", __func__); in cypress_close()
645 usb_kill_urb(port->interrupt_in_urb); in cypress_close()
646 usb_kill_urb(port->interrupt_out_urb); in cypress_close()
649 dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n", in cypress_close()
650 priv->bytes_in, priv->bytes_out, priv->cmd_count); in cypress_close()
659 dev_dbg(&port->dev, "%s - %d bytes\n", __func__, count); in cypress_write()
664 if (priv->cmd_ctrl) { in cypress_write()
672 count = kfifo_in_locked(&priv->write_fifo, buf, count, &priv->lock); in cypress_write()
685 struct device *dev = &port->dev; in cypress_send()
688 if (!priv->comm_is_ok) in cypress_send()
691 dev_dbg(dev, "%s - interrupt out size is %d\n", __func__, in cypress_send()
692 port->interrupt_out_size); in cypress_send()
694 spin_lock_irqsave(&priv->lock, flags); in cypress_send()
695 if (priv->write_urb_in_use) { in cypress_send()
696 dev_dbg(dev, "%s - can't write, urb in use\n", __func__); in cypress_send()
697 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
700 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
703 memset(port->interrupt_out_urb->transfer_buffer, 0, in cypress_send()
704 port->interrupt_out_size); in cypress_send()
706 spin_lock_irqsave(&priv->lock, flags); in cypress_send()
707 switch (priv->pkt_fmt) { in cypress_send()
712 port->interrupt_out_buffer[0] = priv->line_control; in cypress_send()
716 offset = 1; in cypress_send()
717 port->interrupt_out_buffer[0] = priv->line_control; in cypress_send()
721 if (priv->line_control & CONTROL_RESET) in cypress_send()
722 priv->line_control &= ~CONTROL_RESET; in cypress_send()
724 if (priv->cmd_ctrl) { in cypress_send()
725 priv->cmd_count++; in cypress_send()
726 dev_dbg(dev, "%s - line control command being issued\n", __func__); in cypress_send()
727 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
730 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
732 count = kfifo_out_locked(&priv->write_fifo, in cypress_send()
733 &port->interrupt_out_buffer[offset], in cypress_send()
734 port->interrupt_out_size - offset, in cypress_send()
735 &priv->lock); in cypress_send()
739 switch (priv->pkt_fmt) { in cypress_send()
742 port->interrupt_out_buffer[1] = count; in cypress_send()
745 port->interrupt_out_buffer[0] |= count; in cypress_send()
748 dev_dbg(dev, "%s - count is %d\n", __func__, count); in cypress_send()
751 spin_lock_irqsave(&priv->lock, flags); in cypress_send()
752 priv->write_urb_in_use = 1; in cypress_send()
753 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
755 if (priv->cmd_ctrl) in cypress_send()
756 actual_size = 1; in cypress_send()
759 (priv->pkt_fmt == packet_format_1 ? 2 : 1); in cypress_send()
761 usb_serial_debug_data(dev, __func__, port->interrupt_out_size, in cypress_send()
762 port->interrupt_out_urb->transfer_buffer); in cypress_send()
764 usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev, in cypress_send()
765 usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress), in cypress_send()
766 port->interrupt_out_buffer, actual_size, in cypress_send()
767 cypress_write_int_callback, port, priv->write_urb_interval); in cypress_send()
768 result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC); in cypress_send()
771 "%s - failed submitting write urb, error %d\n", in cypress_send()
773 priv->write_urb_in_use = 0; in cypress_send()
777 spin_lock_irqsave(&priv->lock, flags); in cypress_send()
778 if (priv->cmd_ctrl) in cypress_send()
779 priv->cmd_ctrl = 0; in cypress_send()
782 priv->bytes_out += count; in cypress_send()
783 spin_unlock_irqrestore(&priv->lock, flags); in cypress_send()
792 struct usb_serial_port *port = tty->driver_data; in cypress_write_room()
797 spin_lock_irqsave(&priv->lock, flags); in cypress_write_room()
798 room = kfifo_avail(&priv->write_fifo); in cypress_write_room()
799 spin_unlock_irqrestore(&priv->lock, flags); in cypress_write_room()
801 dev_dbg(&port->dev, "%s - returns %u\n", __func__, room); in cypress_write_room()
808 struct usb_serial_port *port = tty->driver_data; in cypress_tiocmget()
814 spin_lock_irqsave(&priv->lock, flags); in cypress_tiocmget()
815 control = priv->line_control; in cypress_tiocmget()
816 status = priv->current_status; in cypress_tiocmget()
817 spin_unlock_irqrestore(&priv->lock, flags); in cypress_tiocmget()
826 dev_dbg(&port->dev, "%s - result = %x\n", __func__, result); in cypress_tiocmget()
835 struct usb_serial_port *port = tty->driver_data; in cypress_tiocmset()
839 spin_lock_irqsave(&priv->lock, flags); in cypress_tiocmset()
841 priv->line_control |= CONTROL_RTS; in cypress_tiocmset()
843 priv->line_control |= CONTROL_DTR; in cypress_tiocmset()
845 priv->line_control &= ~CONTROL_RTS; in cypress_tiocmset()
847 priv->line_control &= ~CONTROL_DTR; in cypress_tiocmset()
848 priv->cmd_ctrl = 1; in cypress_tiocmset()
849 spin_unlock_irqrestore(&priv->lock, flags); in cypress_tiocmset()
864 struct device *dev = &port->dev; in cypress_set_termios()
872 tty->termios.c_cflag &= ~(CMSPAR|CRTSCTS); in cypress_set_termios()
874 cflag = tty->termios.c_cflag; in cypress_set_termios()
879 /* 1 means 2 stop bits, 0 means 1 stop bit */ in cypress_set_termios()
880 stop_bits = cflag & CSTOPB ? 1 : 0; in cypress_set_termios()
883 parity_enable = 1; in cypress_set_termios()
884 /* 1 means odd parity, 0 means even parity */ in cypress_set_termios()
885 parity_type = cflag & PARODD ? 1 : 0; in cypress_set_termios()
891 spin_lock_irqsave(&priv->lock, flags); in cypress_set_termios()
892 oldlines = priv->line_control; in cypress_set_termios()
895 dev_dbg(dev, "%s - dropping the lines, baud rate 0bps\n", __func__); in cypress_set_termios()
896 priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); in cypress_set_termios()
898 priv->line_control = (CONTROL_DTR | CONTROL_RTS); in cypress_set_termios()
899 spin_unlock_irqrestore(&priv->lock, flags); in cypress_set_termios()
901 dev_dbg(dev, "%s - sending %d stop_bits, %d parity_enable, %d parity_type, %d data_bits (+5)\n", in cypress_set_termios()
917 spin_lock_irqsave(&priv->lock, flags); in cypress_set_termios()
918 if (priv->chiptype == CT_EARTHMATE && priv->baud_rate == 4800) { in cypress_set_termios()
919 dev_dbg(dev, "Using custom termios settings for a baud rate of 4800bps.\n"); in cypress_set_termios()
922 tty->termios.c_iflag /* input modes - */ in cypress_set_termios()
932 tty->termios.c_oflag /* output modes */ in cypress_set_termios()
935 tty->termios.c_lflag /* line discipline modes */ in cypress_set_termios()
942 | IEXTEN); /* disable non-POSIX special characters */ in cypress_set_termios()
945 linechange = (priv->line_control != oldlines); in cypress_set_termios()
946 spin_unlock_irqrestore(&priv->lock, flags); in cypress_set_termios()
950 priv->cmd_ctrl = 1; in cypress_set_termios()
959 struct usb_serial_port *port = tty->driver_data; in cypress_chars_in_buffer()
964 spin_lock_irqsave(&priv->lock, flags); in cypress_chars_in_buffer()
965 chars = kfifo_len(&priv->write_fifo); in cypress_chars_in_buffer()
966 spin_unlock_irqrestore(&priv->lock, flags); in cypress_chars_in_buffer()
968 dev_dbg(&port->dev, "%s - returns %u\n", __func__, chars); in cypress_chars_in_buffer()
975 struct usb_serial_port *port = tty->driver_data; in cypress_throttle()
978 spin_lock_irq(&priv->lock); in cypress_throttle()
979 priv->rx_flags = THROTTLED; in cypress_throttle()
980 spin_unlock_irq(&priv->lock); in cypress_throttle()
986 struct usb_serial_port *port = tty->driver_data; in cypress_unthrottle()
990 spin_lock_irq(&priv->lock); in cypress_unthrottle()
991 actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; in cypress_unthrottle()
992 priv->rx_flags = 0; in cypress_unthrottle()
993 spin_unlock_irq(&priv->lock); in cypress_unthrottle()
995 if (!priv->comm_is_ok) in cypress_unthrottle()
999 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); in cypress_unthrottle()
1001 dev_err(&port->dev, "%s - failed submitting read urb, " in cypress_unthrottle()
1011 struct usb_serial_port *port = urb->context; in cypress_read_int_callback()
1013 struct device *dev = &urb->dev->dev; in cypress_read_int_callback()
1015 unsigned char *data = urb->transfer_buffer; in cypress_read_int_callback()
1021 int status = urb->status; in cypress_read_int_callback()
1026 case -ECONNRESET: in cypress_read_int_callback()
1027 case -ENOENT: in cypress_read_int_callback()
1028 case -ESHUTDOWN: in cypress_read_int_callback()
1031 case -EPIPE: in cypress_read_int_callback()
1036 dev_err(dev, "%s - unexpected nonzero read status received: %d\n", in cypress_read_int_callback()
1042 spin_lock_irqsave(&priv->lock, flags); in cypress_read_int_callback()
1043 if (priv->rx_flags & THROTTLED) { in cypress_read_int_callback()
1044 dev_dbg(dev, "%s - now throttling\n", __func__); in cypress_read_int_callback()
1045 priv->rx_flags |= ACTUALLY_THROTTLED; in cypress_read_int_callback()
1046 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1049 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1051 tty = tty_port_tty_get(&port->port); in cypress_read_int_callback()
1053 dev_dbg(dev, "%s - bad tty pointer - exiting\n", __func__); in cypress_read_int_callback()
1057 spin_lock_irqsave(&priv->lock, flags); in cypress_read_int_callback()
1058 result = urb->actual_length; in cypress_read_int_callback()
1059 switch (priv->pkt_fmt) { in cypress_read_int_callback()
1063 priv->current_status = data[0] & 0xF8; in cypress_read_int_callback()
1064 bytes = data[1] + 2; in cypress_read_int_callback()
1069 priv->current_status = data[0] & 0xF8; in cypress_read_int_callback()
1070 bytes = (data[0] & 0x07) + 1; in cypress_read_int_callback()
1071 i = 1; in cypress_read_int_callback()
1074 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1077 "%s - wrong packet size - received %d bytes but packet said %d bytes\n", in cypress_read_int_callback()
1082 usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data); in cypress_read_int_callback()
1084 spin_lock_irqsave(&priv->lock, flags); in cypress_read_int_callback()
1086 if (priv->current_status != priv->prev_status) { in cypress_read_int_callback()
1087 u8 delta = priv->current_status ^ priv->prev_status; in cypress_read_int_callback()
1091 port->icount.cts++; in cypress_read_int_callback()
1093 port->icount.dsr++; in cypress_read_int_callback()
1095 port->icount.rng++; in cypress_read_int_callback()
1097 port->icount.dcd++; in cypress_read_int_callback()
1099 wake_up_interruptible(&port->port.delta_msr_wait); in cypress_read_int_callback()
1102 priv->prev_status = priv->current_status; in cypress_read_int_callback()
1104 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1108 if (tty && !C_CLOCAL(tty) && !(priv->current_status & UART_CD)) { in cypress_read_int_callback()
1109 dev_dbg(dev, "%s - calling hangup\n", __func__); in cypress_read_int_callback()
1115 * indicator as the generic firmware will set this bit to 1 if a in cypress_read_int_callback()
1118 spin_lock_irqsave(&priv->lock, flags); in cypress_read_int_callback()
1119 if (priv->current_status & CYP_ERROR) { in cypress_read_int_callback()
1120 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1122 dev_dbg(dev, "%s - Parity Error detected\n", __func__); in cypress_read_int_callback()
1124 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1128 tty_insert_flip_string_fixed_flag(&port->port, data + i, in cypress_read_int_callback()
1129 tty_flag, bytes - i); in cypress_read_int_callback()
1130 tty_flip_buffer_push(&port->port); in cypress_read_int_callback()
1133 spin_lock_irqsave(&priv->lock, flags); in cypress_read_int_callback()
1135 priv->bytes_in += bytes; in cypress_read_int_callback()
1136 spin_unlock_irqrestore(&priv->lock, flags); in cypress_read_int_callback()
1143 if (priv->comm_is_ok) { in cypress_read_int_callback()
1144 usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev, in cypress_read_int_callback()
1145 usb_rcvintpipe(port->serial->dev, in cypress_read_int_callback()
1146 port->interrupt_in_endpointAddress), in cypress_read_int_callback()
1147 port->interrupt_in_urb->transfer_buffer, in cypress_read_int_callback()
1148 port->interrupt_in_urb->transfer_buffer_length, in cypress_read_int_callback()
1150 priv->read_urb_interval); in cypress_read_int_callback()
1151 result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); in cypress_read_int_callback()
1152 if (result && result != -EPERM) { in cypress_read_int_callback()
1153 dev_err(dev, "%s - failed resubmitting read urb, error %d\n", in cypress_read_int_callback()
1163 struct usb_serial_port *port = urb->context; in cypress_write_int_callback()
1165 struct device *dev = &urb->dev->dev; in cypress_write_int_callback()
1166 int status = urb->status; in cypress_write_int_callback()
1172 case -ECONNRESET: in cypress_write_int_callback()
1173 case -ENOENT: in cypress_write_int_callback()
1174 case -ESHUTDOWN: in cypress_write_int_callback()
1176 dev_dbg(dev, "%s - urb shutting down with status: %d\n", in cypress_write_int_callback()
1178 priv->write_urb_in_use = 0; in cypress_write_int_callback()
1180 case -EPIPE: in cypress_write_int_callback()
1184 dev_err(dev, "%s - unexpected nonzero write status received: %d\n", in cypress_write_int_callback()
1189 priv->write_urb_in_use = 0; in cypress_write_int_callback()