Lines Matching +full:dcd +full:- +full:override
1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2009 - 2013
7 * Copyright (C) 1999 - 2001
8 * Greg Kroah-Hartman (greg@kroah.com)
13 * See Documentation/usb/usb-serial.rst for more information on using this
16 * See http://ftdi-usb-sio.sourceforge.net for up to date testing info
24 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
28 assimilated :-) */
47 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober …
58 u16 last_set_data_value; /* the last data state set - needed for doing
68 speed_t force_baud; /* if non-zero, force the baud rate to
70 int force_rtscts; /* if non-zero, force RTS-CTS to always
127 * - it can support MUCH higher baudrates; up to:
131 * - it has a two byte status code.
132 * - it returns characters every 16ms (the FTDI does it every 40ms)
145 * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report.
1029 /* ICP DAS I-756xU devices */
1050 /* U-Blox devices */
1072 [FTX] = "FT-X"
1211 /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ in ftdi_2232h_baud_base_to_divisor()
1242 struct device *dev = &port->dev; in update_mctrl()
1247 dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__); in update_mctrl()
1261 rv = usb_control_msg(port->serial->dev, in update_mctrl()
1262 usb_sndctrlpipe(port->serial->dev, 0), in update_mctrl()
1265 value, priv->interface, in update_mctrl()
1274 dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__, in update_mctrl()
1278 priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; in update_mctrl()
1288 struct device *dev = &port->dev; in get_ftdi_divisor()
1294 dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud); in get_ftdi_divisor()
1297 * Observe deprecated async-compatible custom_divisor hack, update in get_ftdi_divisor()
1301 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && in get_ftdi_divisor()
1302 (priv->custom_divisor)) { in get_ftdi_divisor()
1303 baud = priv->baud_base / priv->custom_divisor; in get_ftdi_divisor()
1304 dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n", in get_ftdi_divisor()
1305 __func__, priv->custom_divisor, baud); in get_ftdi_divisor()
1310 switch (priv->chip_type) { in get_ftdi_divisor()
1324 dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n", in get_ftdi_divisor()
1335 dev_dbg(dev, "%s - Baud rate too high!\n", __func__); in get_ftdi_divisor()
1344 case FTX: /* FT-X series */ in get_ftdi_divisor()
1347 port->serial->dev->descriptor.idProduct); in get_ftdi_divisor()
1358 dev_dbg(dev, "%s - Baud rate too high!\n", __func__); in get_ftdi_divisor()
1372 dev_dbg(dev, "%s - Baud rate too high!\n", __func__); in get_ftdi_divisor()
1378 } /* priv->chip_type */ in get_ftdi_divisor()
1381 dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n", in get_ftdi_divisor()
1383 ftdi_chip_name[priv->chip_type]); in get_ftdi_divisor()
1401 if (priv->chip_type == FT2232C || priv->chip_type == FT2232H || in change_speed()
1402 priv->chip_type == FT4232H || priv->chip_type == FT232H || in change_speed()
1403 priv->chip_type == FTX) { in change_speed()
1406 index = (u16)((index << 8) | priv->interface); in change_speed()
1409 rv = usb_control_msg(port->serial->dev, in change_speed()
1410 usb_sndctrlpipe(port->serial->dev, 0), in change_speed()
1421 struct usb_device *udev = port->serial->dev; in write_latency_timer()
1423 int l = priv->latency; in write_latency_timer()
1425 if (priv->chip_type == SIO || priv->chip_type == FT8U232AM) in write_latency_timer()
1426 return -EINVAL; in write_latency_timer()
1428 if (priv->flags & ASYNC_LOW_LATENCY) in write_latency_timer()
1431 dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l); in write_latency_timer()
1437 l, priv->interface, in write_latency_timer()
1440 dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); in write_latency_timer()
1447 struct usb_device *udev = port->serial->dev; in _read_latency_timer()
1453 return -ENOMEM; in _read_latency_timer()
1459 0, priv->interface, in _read_latency_timer()
1463 rv = -EIO; in _read_latency_timer()
1478 if (priv->chip_type == SIO || priv->chip_type == FT8U232AM) in read_latency_timer()
1479 return -EINVAL; in read_latency_timer()
1483 dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); in read_latency_timer()
1487 priv->latency = rv; in read_latency_timer()
1495 struct usb_serial_port *port = tty->driver_data; in get_serial_info()
1498 ss->flags = priv->flags; in get_serial_info()
1499 ss->baud_base = priv->baud_base; in get_serial_info()
1500 ss->custom_divisor = priv->custom_divisor; in get_serial_info()
1507 struct usb_serial_port *port = tty->driver_data; in set_serial_info()
1511 mutex_lock(&priv->cfg_lock); in set_serial_info()
1517 if ((ss->flags ^ priv->flags) & ~ASYNC_USR_MASK) { in set_serial_info()
1518 mutex_unlock(&priv->cfg_lock); in set_serial_info()
1519 return -EPERM; in set_serial_info()
1521 priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | in set_serial_info()
1522 (ss->flags & ASYNC_USR_MASK)); in set_serial_info()
1523 priv->custom_divisor = ss->custom_divisor; in set_serial_info()
1527 if (ss->baud_base != priv->baud_base) { in set_serial_info()
1528 mutex_unlock(&priv->cfg_lock); in set_serial_info()
1529 return -EINVAL; in set_serial_info()
1532 /* Make the changes - these are privileged changes! */ in set_serial_info()
1534 priv->flags = ((priv->flags & ~ASYNC_FLAGS) | in set_serial_info()
1535 (ss->flags & ASYNC_FLAGS)); in set_serial_info()
1536 priv->custom_divisor = ss->custom_divisor; in set_serial_info()
1541 if ((priv->flags ^ old_priv.flags) & ASYNC_SPD_MASK || in set_serial_info()
1542 ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && in set_serial_info()
1543 priv->custom_divisor != old_priv.custom_divisor)) { in set_serial_info()
1546 if (priv->flags & ASYNC_SPD_MASK) in set_serial_info()
1547 dev_warn_ratelimited(&port->dev, "use of SPD flags is deprecated\n"); in set_serial_info()
1551 mutex_unlock(&priv->cfg_lock); in set_serial_info()
1561 if (priv->transmit_empty) in get_lsr_info()
1565 return -EFAULT; in get_lsr_info()
1574 struct usb_serial *serial = port->serial; in ftdi_determine_type()
1575 struct usb_device *udev = serial->dev; in ftdi_determine_type()
1580 priv->baud_base = 48000000 / 2; in ftdi_determine_type()
1582 version = le16_to_cpu(udev->descriptor.bcdDevice); in ftdi_determine_type()
1583 interfaces = udev->actconfig->desc.bNumInterfaces; in ftdi_determine_type()
1584 dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__, in ftdi_determine_type()
1587 struct usb_interface *intf = serial->interface; in ftdi_determine_type()
1588 int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; in ftdi_determine_type()
1592 priv->chip_type = FT4232H; in ftdi_determine_type()
1593 /* Hi-speed - baud clock runs at 120MHz */ in ftdi_determine_type()
1594 priv->baud_base = 120000000 / 2; in ftdi_determine_type()
1596 priv->chip_type = FT2232H; in ftdi_determine_type()
1597 /* Hi-speed - baud clock runs at 120MHz */ in ftdi_determine_type()
1598 priv->baud_base = 120000000 / 2; in ftdi_determine_type()
1600 priv->chip_type = FT2232C; in ftdi_determine_type()
1604 priv->interface = INTERFACE_A; in ftdi_determine_type()
1606 priv->interface = INTERFACE_B; in ftdi_determine_type()
1608 priv->interface = INTERFACE_C; in ftdi_determine_type()
1610 priv->interface = INTERFACE_D; in ftdi_determine_type()
1612 /* BM-type devices have a bug where bcdDevice gets set in ftdi_determine_type()
1615 dev_dbg(&port->dev, in ftdi_determine_type()
1616 "%s: something fishy - bcdDevice too low for multi-interface device\n", in ftdi_determine_type()
1621 priv->chip_type = SIO; in ftdi_determine_type()
1622 priv->baud_base = 12000000 / 16; in ftdi_determine_type()
1625 priv->chip_type = FT8U232AM; in ftdi_determine_type()
1631 if (udev->descriptor.iSerialNumber == 0 && in ftdi_determine_type()
1633 dev_dbg(&port->dev, in ftdi_determine_type()
1636 priv->chip_type = FT232BM; in ftdi_determine_type()
1640 priv->chip_type = FT232BM; in ftdi_determine_type()
1643 priv->chip_type = FT232RL; in ftdi_determine_type()
1646 priv->chip_type = FT232H; in ftdi_determine_type()
1648 /* Assume it's an FT-X series device */ in ftdi_determine_type()
1649 priv->chip_type = FTX; in ftdi_determine_type()
1652 dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); in ftdi_determine_type()
1664 struct usb_interface *interface = port->serial->interface; in ftdi_set_max_packet_size()
1669 num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; in ftdi_set_max_packet_size()
1675 * with an endpoint size of 0 - not good. In this case, we in ftdi_set_max_packet_size()
1676 * want to override the endpoint descriptor setting and use a in ftdi_set_max_packet_size()
1680 ep_desc = &interface->cur_altsetting->endpoint[i].desc; in ftdi_set_max_packet_size()
1681 if (!ep_desc->wMaxPacketSize) { in ftdi_set_max_packet_size()
1682 ep_desc->wMaxPacketSize = cpu_to_le16(0x40); in ftdi_set_max_packet_size()
1683 dev_warn(&port->dev, "Overriding wMaxPacketSize on endpoint %d\n", in ftdi_set_max_packet_size()
1689 priv->max_packet_size = usb_endpoint_maxp(ep_desc); in ftdi_set_max_packet_size()
1704 if (priv->flags & ASYNC_LOW_LATENCY) in latency_timer_show()
1707 return sprintf(buf, "%i\n", priv->latency); in latency_timer_show()
1721 return -EINVAL; in latency_timer_store()
1723 priv->latency = v; in latency_timer_store()
1726 return -EIO; in latency_timer_store()
1738 struct usb_device *udev = port->serial->dev; in event_char_store()
1743 return -EINVAL; in event_char_store()
1745 dev_dbg(&port->dev, "%s: setting event char = 0x%03x\n", __func__, v); in event_char_store()
1751 v, priv->interface, in event_char_store()
1754 dev_dbg(&port->dev, "Unable to write event character: %i\n", rv); in event_char_store()
1755 return -EIO; in event_char_store()
1769 if (priv->chip_type != SIO) { in create_sysfs_attrs()
1770 dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]); in create_sysfs_attrs()
1771 retval = device_create_file(&port->dev, &dev_attr_event_char); in create_sysfs_attrs()
1773 (priv->chip_type == FT232BM || in create_sysfs_attrs()
1774 priv->chip_type == FT2232C || in create_sysfs_attrs()
1775 priv->chip_type == FT232RL || in create_sysfs_attrs()
1776 priv->chip_type == FT2232H || in create_sysfs_attrs()
1777 priv->chip_type == FT4232H || in create_sysfs_attrs()
1778 priv->chip_type == FT232H || in create_sysfs_attrs()
1779 priv->chip_type == FTX)) { in create_sysfs_attrs()
1780 retval = device_create_file(&port->dev, in create_sysfs_attrs()
1792 if (priv->chip_type != SIO) { in remove_sysfs_attrs()
1793 device_remove_file(&port->dev, &dev_attr_event_char); in remove_sysfs_attrs()
1794 if (priv->chip_type == FT232BM || in remove_sysfs_attrs()
1795 priv->chip_type == FT2232C || in remove_sysfs_attrs()
1796 priv->chip_type == FT232RL || in remove_sysfs_attrs()
1797 priv->chip_type == FT2232H || in remove_sysfs_attrs()
1798 priv->chip_type == FT4232H || in remove_sysfs_attrs()
1799 priv->chip_type == FT232H || in remove_sysfs_attrs()
1800 priv->chip_type == FTX) { in remove_sysfs_attrs()
1801 device_remove_file(&port->dev, &dev_attr_latency_timer); in remove_sysfs_attrs()
1812 struct usb_serial *serial = port->serial; in ftdi_set_bitmode()
1816 result = usb_autopm_get_interface(serial->interface); in ftdi_set_bitmode()
1820 val = (mode << 8) | (priv->gpio_output << 4) | priv->gpio_value; in ftdi_set_bitmode()
1821 result = usb_control_msg(serial->dev, in ftdi_set_bitmode()
1822 usb_sndctrlpipe(serial->dev, 0), in ftdi_set_bitmode()
1825 priv->interface, NULL, 0, WDR_TIMEOUT); in ftdi_set_bitmode()
1827 dev_err(&serial->interface->dev, in ftdi_set_bitmode()
1832 usb_autopm_put_interface(serial->interface); in ftdi_set_bitmode()
1846 priv->gpio_output = 0; in ftdi_exit_cbus_mode()
1847 priv->gpio_value = 0; in ftdi_exit_cbus_mode()
1857 if (priv->gpio_altfunc & BIT(offset)) in ftdi_gpio_request()
1858 return -ENODEV; in ftdi_gpio_request()
1860 mutex_lock(&priv->gpio_lock); in ftdi_gpio_request()
1861 if (!priv->gpio_used) { in ftdi_gpio_request()
1863 priv->gpio_output = 0x00; in ftdi_gpio_request()
1864 priv->gpio_value = 0x00; in ftdi_gpio_request()
1867 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_request()
1871 priv->gpio_used = true; in ftdi_gpio_request()
1873 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_request()
1881 struct usb_serial *serial = port->serial; in ftdi_read_cbus_pins()
1885 result = usb_autopm_get_interface(serial->interface); in ftdi_read_cbus_pins()
1891 usb_autopm_put_interface(serial->interface); in ftdi_read_cbus_pins()
1892 return -ENOMEM; in ftdi_read_cbus_pins()
1895 result = usb_control_msg(serial->dev, in ftdi_read_cbus_pins()
1896 usb_rcvctrlpipe(serial->dev, 0), in ftdi_read_cbus_pins()
1899 priv->interface, buf, 1, WDR_TIMEOUT); in ftdi_read_cbus_pins()
1902 result = -EIO; in ftdi_read_cbus_pins()
1908 usb_autopm_put_interface(serial->interface); in ftdi_read_cbus_pins()
1930 mutex_lock(&priv->gpio_lock); in ftdi_gpio_set()
1933 priv->gpio_value |= BIT(gpio); in ftdi_gpio_set()
1935 priv->gpio_value &= ~BIT(gpio); in ftdi_gpio_set()
1939 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_set()
1963 mutex_lock(&priv->gpio_lock); in ftdi_gpio_set_multiple()
1965 priv->gpio_value &= ~(*mask); in ftdi_gpio_set_multiple()
1966 priv->gpio_value |= *bits & *mask; in ftdi_gpio_set_multiple()
1969 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_set_multiple()
1977 return !(priv->gpio_output & BIT(gpio)); in ftdi_gpio_direction_get()
1986 mutex_lock(&priv->gpio_lock); in ftdi_gpio_direction_input()
1988 priv->gpio_output &= ~BIT(gpio); in ftdi_gpio_direction_input()
1991 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_direction_input()
2003 mutex_lock(&priv->gpio_lock); in ftdi_gpio_direction_output()
2005 priv->gpio_output |= BIT(gpio); in ftdi_gpio_direction_output()
2007 priv->gpio_value |= BIT(gpio); in ftdi_gpio_direction_output()
2009 priv->gpio_value &= ~BIT(gpio); in ftdi_gpio_direction_output()
2013 mutex_unlock(&priv->gpio_lock); in ftdi_gpio_direction_output()
2024 return -EINVAL; in ftdi_read_eeprom()
2026 return -EINVAL; in ftdi_read_eeprom()
2032 rv = usb_control_msg(serial->dev, in ftdi_read_eeprom()
2033 usb_rcvctrlpipe(serial->dev, 0), in ftdi_read_eeprom()
2040 return -EIO; in ftdi_read_eeprom()
2061 return -ENOMEM; in ftdi_gpio_init_ft232h()
2063 ret = ftdi_read_eeprom(port->serial, buf, 0x1a, 4); in ftdi_gpio_init_ft232h()
2070 * 0x1a: X- (upper nibble -> AC5) in ftdi_gpio_init_ft232h()
2071 * 0x1b: -X (lower nibble -> AC6) in ftdi_gpio_init_ft232h()
2072 * 0x1c: XX (upper nibble -> AC9 | lower nibble -> AC8) in ftdi_gpio_init_ft232h()
2076 priv->gc.ngpio = 4; in ftdi_gpio_init_ft232h()
2077 priv->gpio_altfunc = 0xff; in ftdi_gpio_init_ft232h()
2079 for (i = 0; i < priv->gc.ngpio; ++i) { in ftdi_gpio_init_ft232h()
2081 priv->gpio_altfunc &= ~BIT(i); in ftdi_gpio_init_ft232h()
2101 return -ENOMEM; in ftdi_gpio_init_ft232r()
2103 ret = ftdi_read_eeprom(port->serial, buf, 0x14, 2); in ftdi_gpio_init_ft232r()
2108 dev_dbg(&port->dev, "cbus_config = 0x%04x\n", cbus_config); in ftdi_gpio_init_ft232r()
2110 priv->gc.ngpio = 4; in ftdi_gpio_init_ft232r()
2112 priv->gpio_altfunc = 0xff; in ftdi_gpio_init_ft232r()
2113 for (i = 0; i < priv->gc.ngpio; ++i) { in ftdi_gpio_init_ft232r()
2115 priv->gpio_altfunc &= ~BIT(i); in ftdi_gpio_init_ft232r()
2127 struct usb_serial *serial = port->serial; in ftdi_gpio_init_ftx()
2136 return -ENOMEM; in ftdi_gpio_init_ftx()
2144 priv->gc.ngpio = 4; in ftdi_gpio_init_ftx()
2147 priv->gpio_altfunc = 0xff; in ftdi_gpio_init_ftx()
2148 for (i = 0; i < priv->gc.ngpio; ++i) { in ftdi_gpio_init_ftx()
2150 priv->gpio_altfunc &= ~BIT(i); in ftdi_gpio_init_ftx()
2162 struct usb_serial *serial = port->serial; in ftdi_gpio_init()
2165 switch (priv->chip_type) { in ftdi_gpio_init()
2182 mutex_init(&priv->gpio_lock); in ftdi_gpio_init()
2184 priv->gc.label = "ftdi-cbus"; in ftdi_gpio_init()
2185 priv->gc.request = ftdi_gpio_request; in ftdi_gpio_init()
2186 priv->gc.get_direction = ftdi_gpio_direction_get; in ftdi_gpio_init()
2187 priv->gc.direction_input = ftdi_gpio_direction_input; in ftdi_gpio_init()
2188 priv->gc.direction_output = ftdi_gpio_direction_output; in ftdi_gpio_init()
2189 priv->gc.get = ftdi_gpio_get; in ftdi_gpio_init()
2190 priv->gc.set = ftdi_gpio_set; in ftdi_gpio_init()
2191 priv->gc.get_multiple = ftdi_gpio_get_multiple; in ftdi_gpio_init()
2192 priv->gc.set_multiple = ftdi_gpio_set_multiple; in ftdi_gpio_init()
2193 priv->gc.owner = THIS_MODULE; in ftdi_gpio_init()
2194 priv->gc.parent = &serial->interface->dev; in ftdi_gpio_init()
2195 priv->gc.base = -1; in ftdi_gpio_init()
2196 priv->gc.can_sleep = true; in ftdi_gpio_init()
2198 result = gpiochip_add_data(&priv->gc, port); in ftdi_gpio_init()
2200 priv->gpio_registered = true; in ftdi_gpio_init()
2209 if (priv->gpio_registered) { in ftdi_gpio_remove()
2210 gpiochip_remove(&priv->gc); in ftdi_gpio_remove()
2211 priv->gpio_registered = false; in ftdi_gpio_remove()
2214 if (priv->gpio_used) { in ftdi_gpio_remove()
2215 /* Exiting CBUS-mode does not reset pin states. */ in ftdi_gpio_remove()
2217 priv->gpio_used = false; in ftdi_gpio_remove()
2243 (struct ftdi_sio_quirk *)id->driver_info; in ftdi_sio_probe()
2245 if (quirk && quirk->probe) { in ftdi_sio_probe()
2246 int ret = quirk->probe(serial); in ftdi_sio_probe()
2251 usb_set_serial_data(serial, (void *)id->driver_info); in ftdi_sio_probe()
2259 const struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); in ftdi_sio_port_probe()
2264 return -ENOMEM; in ftdi_sio_port_probe()
2266 mutex_init(&priv->cfg_lock); in ftdi_sio_port_probe()
2268 if (quirk && quirk->port_probe) in ftdi_sio_port_probe()
2269 quirk->port_probe(priv); in ftdi_sio_port_probe()
2276 priv->latency = 16; in ftdi_sio_port_probe()
2282 dev_err(&port->serial->interface->dev, in ftdi_sio_port_probe()
2290 /* Setup for the USB-UIRT device, which requires hardwired
2295 priv->flags |= ASYNC_SPD_CUST; in ftdi_USB_UIRT_setup()
2296 priv->custom_divisor = 77; in ftdi_USB_UIRT_setup()
2297 priv->force_baud = 38400; in ftdi_USB_UIRT_setup()
2300 /* Setup for the HE-TIRA1 device, which requires hardwired
2301 * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
2305 priv->flags |= ASYNC_SPD_CUST; in ftdi_HE_TIRA1_setup()
2306 priv->custom_divisor = 240; in ftdi_HE_TIRA1_setup()
2307 priv->force_baud = 38400; in ftdi_HE_TIRA1_setup()
2308 priv->force_rtscts = 1; in ftdi_HE_TIRA1_setup()
2312 * Module parameter to control latency timer for NDI FTDI-based USB devices.
2318 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
2325 struct usb_device *udev = serial->dev; in ftdi_NDI_device_setup()
2333 dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency); in ftdi_NDI_device_setup()
2334 dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency); in ftdi_NDI_device_setup()
2345 * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
2351 struct usb_interface *intf = serial->interface; in ftdi_jtag_probe()
2352 int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; in ftdi_jtag_probe()
2355 dev_info(&intf->dev, "Ignoring interface reserved for JTAG\n"); in ftdi_jtag_probe()
2356 return -ENODEV; in ftdi_jtag_probe()
2364 struct usb_device *udev = serial->dev; in ftdi_8u2232c_probe()
2366 if (udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) in ftdi_8u2232c_probe()
2369 if (udev->product && in ftdi_8u2232c_probe()
2370 (!strcmp(udev->product, "Arrow USB Blaster") || in ftdi_8u2232c_probe()
2371 !strcmp(udev->product, "BeagleBone/XDS100V2") || in ftdi_8u2232c_probe()
2372 !strcmp(udev->product, "SNAP Connect E10"))) in ftdi_8u2232c_probe()
2380 * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
2383 * a conventional RS-232 UART.
2387 struct usb_interface *intf = serial->interface; in ftdi_stmclite_probe()
2388 int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; in ftdi_stmclite_probe()
2391 dev_info(&intf->dev, "Ignoring interface reserved for JTAG\n"); in ftdi_stmclite_probe()
2392 return -ENODEV; in ftdi_stmclite_probe()
2413 struct usb_device *dev = port->serial->dev; in ftdi_open()
2421 priv->interface, NULL, 0, WDR_TIMEOUT); in ftdi_open()
2424 port->tty->termios - this would lose speed settings, etc. in ftdi_open()
2425 This is same behaviour as serial.c/rs_open() - Kuba */ in ftdi_open()
2440 if (usb_control_msg(port->serial->dev, in ftdi_dtr_rts()
2441 usb_sndctrlpipe(port->serial->dev, 0), in ftdi_dtr_rts()
2444 0, priv->interface, NULL, 0, in ftdi_dtr_rts()
2446 dev_err(&port->dev, "error from flowcontrol urb\n"); in ftdi_dtr_rts()
2472 if (priv->chip_type == SIO) { in ftdi_prepare_write_buffer()
2477 spin_lock_irqsave(&port->lock, flags); in ftdi_prepare_write_buffer()
2478 for (i = 0; i < size - 1; i += priv->max_packet_size) { in ftdi_prepare_write_buffer()
2479 len = min_t(int, size - i, priv->max_packet_size) - 1; in ftdi_prepare_write_buffer()
2480 c = kfifo_out(&port->write_fifo, &buffer[i + 1], len); in ftdi_prepare_write_buffer()
2483 port->icount.tx += c; in ftdi_prepare_write_buffer()
2487 spin_unlock_irqrestore(&port->lock, flags); in ftdi_prepare_write_buffer()
2489 count = kfifo_out_locked(&port->write_fifo, dest, size, in ftdi_prepare_write_buffer()
2490 &port->lock); in ftdi_prepare_write_buffer()
2491 port->icount.tx += count; in ftdi_prepare_write_buffer()
2508 dev_dbg(&port->dev, "malformed packet\n"); in ftdi_process_packet()
2516 if (status != priv->prev_status) { in ftdi_process_packet()
2517 char diff_status = status ^ priv->prev_status; in ftdi_process_packet()
2520 port->icount.cts++; in ftdi_process_packet()
2522 port->icount.dsr++; in ftdi_process_packet()
2524 port->icount.rng++; in ftdi_process_packet()
2528 port->icount.dcd++; in ftdi_process_packet()
2529 tty = tty_port_tty_get(&port->port); in ftdi_process_packet()
2536 wake_up_interruptible(&port->port.delta_msr_wait); in ftdi_process_packet()
2537 priv->prev_status = status; in ftdi_process_packet()
2542 priv->transmit_empty = 1; in ftdi_process_packet()
2544 priv->transmit_empty = 0; in ftdi_process_packet()
2551 * data payload to avoid over-reporting. in ftdi_process_packet()
2561 if (buf[1] & FTDI_RS_BI && buf[len - 1] == '\0') { in ftdi_process_packet()
2562 port->icount.brk++; in ftdi_process_packet()
2567 port->icount.parity++; in ftdi_process_packet()
2570 port->icount.frame++; in ftdi_process_packet()
2574 port->icount.overrun++; in ftdi_process_packet()
2575 tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); in ftdi_process_packet()
2579 port->icount.rx += len - 2; in ftdi_process_packet()
2581 if (brkint || port->sysrq) { in ftdi_process_packet()
2583 if (brkint && i == len - 1) { in ftdi_process_packet()
2585 return len - 3; in ftdi_process_packet()
2590 tty_insert_flip_char(&port->port, buf[i], flag); in ftdi_process_packet()
2593 tty_insert_flip_string_fixed_flag(&port->port, buf + 2, flag, in ftdi_process_packet()
2594 len - 2); in ftdi_process_packet()
2597 return len - 2; in ftdi_process_packet()
2602 struct usb_serial_port *port = urb->context; in ftdi_process_read_urb()
2604 char *data = urb->transfer_buffer; in ftdi_process_read_urb()
2609 for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { in ftdi_process_read_urb()
2610 len = min_t(int, urb->actual_length - i, priv->max_packet_size); in ftdi_process_read_urb()
2615 tty_flip_buffer_push(&port->port); in ftdi_process_read_urb()
2620 struct usb_serial_port *port = tty->driver_data; in ftdi_break_ctl()
2624 /* break_state = -1 to turn on break, and 0 to turn off break */ in ftdi_break_ctl()
2629 value = priv->last_set_data_value | FTDI_SIO_SET_BREAK; in ftdi_break_ctl()
2631 value = priv->last_set_data_value; in ftdi_break_ctl()
2633 if (usb_control_msg(port->serial->dev, in ftdi_break_ctl()
2634 usb_sndctrlpipe(port->serial->dev, 0), in ftdi_break_ctl()
2637 value , priv->interface, in ftdi_break_ctl()
2639 dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n", in ftdi_break_ctl()
2643 dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__, in ftdi_break_ctl()
2662 /* old_termios contains the original termios settings and tty->termios contains
2669 struct usb_device *dev = port->serial->dev; in ftdi_set_termios()
2670 struct device *ddev = &port->dev; in ftdi_set_termios()
2672 struct ktermios *termios = &tty->termios; in ftdi_set_termios()
2673 unsigned int cflag = termios->c_cflag; in ftdi_set_termios()
2679 if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { in ftdi_set_termios()
2681 tty_encode_baud_rate(tty, priv->force_baud, in ftdi_set_termios()
2682 priv->force_baud); in ftdi_set_termios()
2685 /* Force RTS-CTS if this device requires it. */ in ftdi_set_termios()
2686 if (priv->force_rtscts) { in ftdi_set_termios()
2688 termios->c_cflag |= CRTSCTS; in ftdi_set_termios()
2708 termios->c_cflag &= ~CSIZE; in ftdi_set_termios()
2710 termios->c_cflag |= old_termios->c_cflag & CSIZE; in ftdi_set_termios()
2712 termios->c_cflag |= CS8; in ftdi_set_termios()
2715 cflag = termios->c_cflag; in ftdi_set_termios()
2720 if (old_termios->c_cflag == termios->c_cflag in ftdi_set_termios()
2721 && old_termios->c_ispeed == termios->c_ispeed in ftdi_set_termios()
2722 && old_termios->c_ospeed == termios->c_ospeed) in ftdi_set_termios()
2726 ftdi_sio_read_bulk_callback - need to examine what this means - in ftdi_set_termios()
2729 if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) == in ftdi_set_termios()
2730 (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB))) in ftdi_set_termios()
2767 - but is or'ed with this value */ in ftdi_set_termios()
2768 priv->last_set_data_value = value; in ftdi_set_termios()
2773 value , priv->interface, in ftdi_set_termios()
2786 0, priv->interface, in ftdi_set_termios()
2795 mutex_lock(&priv->cfg_lock); in ftdi_set_termios()
2798 mutex_unlock(&priv->cfg_lock); in ftdi_set_termios()
2800 if (old_termios && (old_termios->c_cflag & CBAUD) == B0) in ftdi_set_termios()
2805 /* Set hardware-assisted flow control */ in ftdi_set_termios()
2809 dev_dbg(&port->dev, "enabling rts/cts flow control\n"); in ftdi_set_termios()
2812 dev_dbg(&port->dev, "enabling xon/xoff flow control\n"); in ftdi_set_termios()
2816 dev_dbg(&port->dev, "disabling flow control\n"); in ftdi_set_termios()
2820 index |= priv->interface; in ftdi_set_termios()
2827 dev_err(&port->dev, "failed to set flow control: %d\n", ret); in ftdi_set_termios()
2831 * Get modem-control status.
2846 return -ENOMEM; in ftdi_get_modem_status()
2851 switch (priv->chip_type) { in ftdi_get_modem_status()
2866 ret = -EFAULT; in ftdi_get_modem_status()
2870 ret = usb_control_msg(port->serial->dev, in ftdi_get_modem_status()
2871 usb_rcvctrlpipe(port->serial->dev, 0), in ftdi_get_modem_status()
2874 0, priv->interface, in ftdi_get_modem_status()
2879 dev_err(&port->dev, "failed to get modem status: %d\n", ret); in ftdi_get_modem_status()
2881 ret = -EIO; in ftdi_get_modem_status()
2892 dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0], in ftdi_get_modem_status()
2902 struct usb_serial_port *port = tty->driver_data; in ftdi_tiocmget()
2915 priv->last_dtr_rts; in ftdi_tiocmget()
2923 struct usb_serial_port *port = tty->driver_data; in ftdi_tiocmset()
2931 struct usb_serial_port *port = tty->driver_data; in ftdi_ioctl()
2941 return -ENOIOCTLCMD; in ftdi_ioctl()
2951 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");