Lines Matching full:serial
22 * The multiplexed serial ports are using the interrupt and
60 #include <linux/serial.h>
203 on which serial port it is used on. */
230 int (*write_data) (struct hso_serial *serial);
233 * working on the serial receive buffers
290 /* Serial driver functions */
294 static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
295 static void hso_kick_transmit(struct hso_serial *serial);
312 static int hso_mux_serial_read(struct hso_serial *serial);
369 /* serial structures */
516 static int hso_urb_to_index(struct hso_serial *serial, struct urb *urb) in hso_urb_to_index() argument
520 for (idx = 0; idx < serial->num_rx_urbs; idx++) in hso_urb_to_index()
521 if (serial->rx_urb[idx] == urb) in hso_urb_to_index()
523 dev_err(serial->parent->dev, "hso_urb_to_index failed\n"); in hso_urb_to_index()
602 struct hso_serial *serial = NULL; in get_serial_by_index() local
607 serial = dev2ser(serial_table[index]); in get_serial_by_index()
610 return serial; in get_serial_by_index()
613 static int obtain_minor(struct hso_serial *serial) in obtain_minor() argument
621 serial_table[index] = serial->parent; in obtain_minor()
622 serial->minor = index; in obtain_minor()
629 pr_err("%s: no free serial devices in table\n", __func__); in obtain_minor()
633 static void release_minor(struct hso_serial *serial) in release_minor() argument
638 serial_table[serial->minor] = NULL; in release_minor()
1041 /* Serial driver functions */
1084 struct hso_serial *serial = tty->driver_data; in _hso_serial_set_termios() local
1086 if (!serial) { in _hso_serial_set_termios()
1091 hso_dbg(0x8, "port %d\n", serial->minor); in _hso_serial_set_termios()
1110 static void hso_resubmit_rx_bulk_urb(struct hso_serial *serial, struct urb *urb) in hso_resubmit_rx_bulk_urb() argument
1115 usb_fill_bulk_urb(urb, serial->parent->usb, in hso_resubmit_rx_bulk_urb()
1116 usb_rcvbulkpipe(serial->parent->usb, in hso_resubmit_rx_bulk_urb()
1117 serial->in_endp-> in hso_resubmit_rx_bulk_urb()
1119 urb->transfer_buffer, serial->rx_data_length, in hso_resubmit_rx_bulk_urb()
1120 hso_std_serial_read_bulk_callback, serial); in hso_resubmit_rx_bulk_urb()
1125 dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d\n", in hso_resubmit_rx_bulk_urb()
1133 static void put_rxbuf_data_and_resubmit_bulk_urb(struct hso_serial *serial) in put_rxbuf_data_and_resubmit_bulk_urb() argument
1138 while (serial->rx_urb_filled[serial->curr_rx_urb_idx]) { in put_rxbuf_data_and_resubmit_bulk_urb()
1139 curr_urb = serial->rx_urb[serial->curr_rx_urb_idx]; in put_rxbuf_data_and_resubmit_bulk_urb()
1140 count = put_rxbuf_data(curr_urb, serial); in put_rxbuf_data_and_resubmit_bulk_urb()
1144 serial->curr_rx_urb_idx++; in put_rxbuf_data_and_resubmit_bulk_urb()
1145 if (serial->curr_rx_urb_idx >= serial->num_rx_urbs) in put_rxbuf_data_and_resubmit_bulk_urb()
1146 serial->curr_rx_urb_idx = 0; in put_rxbuf_data_and_resubmit_bulk_urb()
1147 hso_resubmit_rx_bulk_urb(serial, curr_urb); in put_rxbuf_data_and_resubmit_bulk_urb()
1152 static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial) in put_rxbuf_data_and_resubmit_ctrl_urb() argument
1157 urb = serial->rx_urb[0]; in put_rxbuf_data_and_resubmit_ctrl_urb()
1158 if (serial->port.count > 0) { in put_rxbuf_data_and_resubmit_ctrl_urb()
1159 count = put_rxbuf_data(urb, serial); in put_rxbuf_data_and_resubmit_ctrl_urb()
1166 (serial->rx_state == RX_PENDING))) { in put_rxbuf_data_and_resubmit_ctrl_urb()
1167 serial->rx_state = RX_SENT; in put_rxbuf_data_and_resubmit_ctrl_urb()
1168 hso_mux_serial_read(serial); in put_rxbuf_data_and_resubmit_ctrl_urb()
1170 serial->rx_state = RX_IDLE; in put_rxbuf_data_and_resubmit_ctrl_urb()
1177 struct hso_serial *serial = urb->context; in hso_std_serial_read_bulk_callback() local
1184 if (!serial) { in hso_std_serial_read_bulk_callback()
1185 hso_dbg(0x1, "serial == NULL\n"); in hso_std_serial_read_bulk_callback()
1189 handle_usb_error(status, __func__, serial->parent); in hso_std_serial_read_bulk_callback()
1197 if (serial->port.count == 0) in hso_std_serial_read_bulk_callback()
1200 if (serial->parent->port_spec & HSO_INFO_CRC_BUG) in hso_std_serial_read_bulk_callback()
1201 fix_crc_bug(urb, serial->in_endp->wMaxPacketSize); in hso_std_serial_read_bulk_callback()
1203 spin_lock_irqsave(&serial->serial_lock, flags); in hso_std_serial_read_bulk_callback()
1204 serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1; in hso_std_serial_read_bulk_callback()
1205 put_rxbuf_data_and_resubmit_bulk_urb(serial); in hso_std_serial_read_bulk_callback()
1206 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_std_serial_read_bulk_callback()
1215 struct hso_serial *serial = from_tasklet(serial, t, in hso_unthrottle_tasklet() local
1219 spin_lock_irqsave(&serial->serial_lock, flags); in hso_unthrottle_tasklet()
1220 if ((serial->parent->port_spec & HSO_INTF_MUX)) in hso_unthrottle_tasklet()
1221 put_rxbuf_data_and_resubmit_ctrl_urb(serial); in hso_unthrottle_tasklet()
1223 put_rxbuf_data_and_resubmit_bulk_urb(serial); in hso_unthrottle_tasklet()
1224 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_unthrottle_tasklet()
1229 struct hso_serial *serial = tty->driver_data; in hso_unthrottle() local
1231 tasklet_hi_schedule(&serial->unthrottle_tasklet); in hso_unthrottle()
1234 /* open the requested serial port */
1237 struct hso_serial *serial = get_serial_by_index(tty->index); in hso_serial_open() local
1241 if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) { in hso_serial_open()
1248 mutex_lock(&serial->parent->mutex); in hso_serial_open()
1249 result = usb_autopm_get_interface(serial->parent->interface); in hso_serial_open()
1253 hso_dbg(0x1, "Opening %d\n", serial->minor); in hso_serial_open()
1256 tty->driver_data = serial; in hso_serial_open()
1257 tty_port_tty_set(&serial->port, tty); in hso_serial_open()
1260 serial->port.count++; in hso_serial_open()
1261 if (serial->port.count == 1) { in hso_serial_open()
1262 serial->rx_state = RX_IDLE; in hso_serial_open()
1265 tasklet_setup(&serial->unthrottle_tasklet, in hso_serial_open()
1267 result = hso_start_serial_device(serial->parent, GFP_KERNEL); in hso_serial_open()
1269 hso_stop_serial_device(serial->parent); in hso_serial_open()
1270 serial->port.count--; in hso_serial_open()
1272 kref_get(&serial->parent->ref); in hso_serial_open()
1278 usb_autopm_put_interface(serial->parent->interface); in hso_serial_open()
1284 mutex_unlock(&serial->parent->mutex); in hso_serial_open()
1288 /* close the requested serial port */
1291 struct hso_serial *serial = tty->driver_data; in hso_serial_close() local
1294 hso_dbg(0x1, "Closing serial port\n"); in hso_serial_close()
1297 if (serial == NULL) in hso_serial_close()
1300 mutex_lock(&serial->parent->mutex); in hso_serial_close()
1301 usb_gone = serial->parent->usb_gone; in hso_serial_close()
1304 usb_autopm_get_interface(serial->parent->interface); in hso_serial_close()
1308 serial->port.count--; in hso_serial_close()
1310 if (serial->port.count <= 0) { in hso_serial_close()
1311 serial->port.count = 0; in hso_serial_close()
1312 tty_port_tty_set(&serial->port, NULL); in hso_serial_close()
1314 hso_stop_serial_device(serial->parent); in hso_serial_close()
1315 tasklet_kill(&serial->unthrottle_tasklet); in hso_serial_close()
1319 usb_autopm_put_interface(serial->parent->interface); in hso_serial_close()
1321 mutex_unlock(&serial->parent->mutex); in hso_serial_close()
1324 /* close the requested serial port */
1328 struct hso_serial *serial = tty->driver_data; in hso_serial_write() local
1333 if (serial == NULL) { in hso_serial_write()
1334 pr_err("%s: serial is NULL\n", __func__); in hso_serial_write()
1338 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_write()
1340 space = serial->tx_data_length - serial->tx_buffer_count; in hso_serial_write()
1346 memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes); in hso_serial_write()
1347 serial->tx_buffer_count += tx_bytes; in hso_serial_write()
1350 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_write()
1352 hso_kick_transmit(serial); in hso_serial_write()
1360 struct hso_serial *serial = tty->driver_data; in hso_serial_write_room() local
1364 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_write_room()
1365 room = serial->tx_data_length - serial->tx_buffer_count; in hso_serial_write_room()
1366 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_write_room()
1374 struct hso_serial *serial = tty->driver_data; in hso_serial_cleanup() local
1376 if (!serial) in hso_serial_cleanup()
1379 kref_put(&serial->parent->ref, hso_serial_ref_free); in hso_serial_cleanup()
1385 struct hso_serial *serial = tty->driver_data; in hso_serial_set_termios() local
1394 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_set_termios()
1395 if (serial->port.count) in hso_serial_set_termios()
1399 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_set_termios()
1407 struct hso_serial *serial = tty->driver_data; in hso_serial_chars_in_buffer() local
1412 if (serial == NULL) in hso_serial_chars_in_buffer()
1415 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_chars_in_buffer()
1416 chars = serial->tx_buffer_count; in hso_serial_chars_in_buffer()
1417 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_chars_in_buffer()
1421 static int tiocmget_submit_urb(struct hso_serial *serial, in tiocmget_submit_urb() argument
1427 if (serial->parent->usb_gone) in tiocmget_submit_urb()
1435 tiocmget_intr_callback, serial, in tiocmget_submit_urb()
1448 struct hso_serial *serial = urb->context; in tiocmget_intr_callback() local
1459 if (!serial) in tiocmget_intr_callback()
1462 handle_usb_error(status, __func__, serial->parent); in tiocmget_intr_callback()
1467 tiocmget = serial->tiocmget; in tiocmget_intr_callback()
1470 BUG_ON((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM); in tiocmget_intr_callback()
1472 usb = serial->parent->usb; in tiocmget_intr_callback()
1473 interface = serial->parent->interface; in tiocmget_intr_callback()
1487 "hso received invalid serial state notification\n"); in tiocmget_intr_callback()
1497 spin_lock_irqsave(&serial->serial_lock, flags); in tiocmget_intr_callback()
1520 spin_unlock_irqrestore(&serial->serial_lock, flags); in tiocmget_intr_callback()
1526 tiocmget_submit_urb(serial, in tiocmget_intr_callback()
1528 serial->parent->usb); in tiocmget_intr_callback()
1532 * next few functions largely stolen from drivers/serial/serial_core.c
1540 hso_wait_modem_status(struct hso_serial *serial, unsigned long arg) in hso_wait_modem_status() argument
1547 tiocmget = serial->tiocmget; in hso_wait_modem_status()
1553 spin_lock_irq(&serial->serial_lock); in hso_wait_modem_status()
1555 spin_unlock_irq(&serial->serial_lock); in hso_wait_modem_status()
1558 spin_lock_irq(&serial->serial_lock); in hso_wait_modem_status()
1560 spin_unlock_irq(&serial->serial_lock); in hso_wait_modem_status()
1583 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
1592 struct hso_serial *serial = tty->driver_data; in hso_get_count() local
1593 struct hso_tiocmget *tiocmget = serial->tiocmget; in hso_get_count()
1599 spin_lock_irq(&serial->serial_lock); in hso_get_count()
1601 spin_unlock_irq(&serial->serial_lock); in hso_get_count()
1622 struct hso_serial *serial = tty->driver_data; in hso_serial_tiocmget() local
1627 if (!serial) { in hso_serial_tiocmget()
1631 spin_lock_irq(&serial->serial_lock); in hso_serial_tiocmget()
1632 retval = ((serial->rts_state) ? TIOCM_RTS : 0) | in hso_serial_tiocmget()
1633 ((serial->dtr_state) ? TIOCM_DTR : 0); in hso_serial_tiocmget()
1634 tiocmget = serial->tiocmget; in hso_serial_tiocmget()
1646 spin_unlock_irq(&serial->serial_lock); in hso_serial_tiocmget()
1656 struct hso_serial *serial = tty->driver_data; in hso_serial_tiocmset() local
1660 if (!serial) { in hso_serial_tiocmset()
1665 if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM) in hso_serial_tiocmset()
1668 interface = serial->parent->interface; in hso_serial_tiocmset()
1671 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_tiocmset()
1673 serial->rts_state = 1; in hso_serial_tiocmset()
1675 serial->dtr_state = 1; in hso_serial_tiocmset()
1678 serial->rts_state = 0; in hso_serial_tiocmset()
1680 serial->dtr_state = 0; in hso_serial_tiocmset()
1682 if (serial->dtr_state) in hso_serial_tiocmset()
1684 if (serial->rts_state) in hso_serial_tiocmset()
1687 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_tiocmset()
1689 return usb_control_msg(serial->parent->usb, in hso_serial_tiocmset()
1690 usb_sndctrlpipe(serial->parent->usb, 0), 0x22, in hso_serial_tiocmset()
1698 struct hso_serial *serial = tty->driver_data; in hso_serial_ioctl() local
1702 if (!serial) in hso_serial_ioctl()
1706 ret = hso_wait_modem_status(serial, arg); in hso_serial_ioctl()
1717 static void hso_kick_transmit(struct hso_serial *serial) in hso_kick_transmit() argument
1722 spin_lock_irqsave(&serial->serial_lock, flags); in hso_kick_transmit()
1723 if (!serial->tx_buffer_count) in hso_kick_transmit()
1726 if (serial->tx_urb_used) in hso_kick_transmit()
1730 if (hso_get_activity(serial->parent) == -EAGAIN) in hso_kick_transmit()
1734 swap(serial->tx_buffer, serial->tx_data); in hso_kick_transmit()
1735 serial->tx_data_count = serial->tx_buffer_count; in hso_kick_transmit()
1736 serial->tx_buffer_count = 0; in hso_kick_transmit()
1738 /* If serial->tx_data is set, it means we switched buffers */ in hso_kick_transmit()
1739 if (serial->tx_data && serial->write_data) { in hso_kick_transmit()
1740 res = serial->write_data(serial); in hso_kick_transmit()
1742 serial->tx_urb_used = 1; in hso_kick_transmit()
1745 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_kick_transmit()
1748 /* make a request (for reading and writing data to muxed serial port) */
1749 static int mux_device_request(struct hso_serial *serial, u8 type, u16 port, in mux_device_request() argument
1758 if (!serial || !ctrl_urb || !ctrl_req) { in mux_device_request()
1774 pipe = usb_rcvctrlpipe(serial->parent->usb, 0); in mux_device_request()
1781 pipe = usb_sndctrlpipe(serial->parent->usb, 0); in mux_device_request()
1791 serial->parent->usb, in mux_device_request()
1794 ctrl_urb_data, size, ctrl_callback, serial); in mux_device_request()
1809 static int hso_mux_serial_read(struct hso_serial *serial) in hso_mux_serial_read() argument
1811 if (!serial) in hso_mux_serial_read()
1815 memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE); in hso_mux_serial_read()
1818 if (serial->num_rx_urbs != 1) { in hso_mux_serial_read()
1819 dev_err(&serial->parent->interface->dev, in hso_mux_serial_read()
1824 return mux_device_request(serial, in hso_mux_serial_read()
1826 serial->parent->port_spec & HSO_PORT_MASK, in hso_mux_serial_read()
1827 serial->rx_urb[0], in hso_mux_serial_read()
1828 &serial->ctrl_req_rx, in hso_mux_serial_read()
1829 serial->rx_data[0], serial->rx_data_length); in hso_mux_serial_read()
1832 /* used for muxed serial port callback (muxed serial read) */
1836 struct hso_serial *serial; in intr_callback() local
1862 serial = get_serial_by_shared_int_and_type(shared_int, in intr_callback()
1864 if (serial != NULL) { in intr_callback()
1867 spin_lock_irqsave(&serial->serial_lock, flags); in intr_callback()
1868 if (serial->rx_state == RX_IDLE && in intr_callback()
1869 serial->port.count > 0) { in intr_callback()
1872 if (!serial->rx_urb_filled[0]) { in intr_callback()
1873 serial->rx_state = RX_SENT; in intr_callback()
1874 hso_mux_serial_read(serial); in intr_callback()
1876 serial->rx_state = RX_PENDING; in intr_callback()
1881 spin_unlock_irqrestore(&serial->serial_lock, in intr_callback()
1890 /* called for writing to muxed serial port */
1891 static int hso_mux_serial_write_data(struct hso_serial *serial) in hso_mux_serial_write_data() argument
1893 if (NULL == serial) in hso_mux_serial_write_data()
1896 return mux_device_request(serial, in hso_mux_serial_write_data()
1898 serial->parent->port_spec & HSO_PORT_MASK, in hso_mux_serial_write_data()
1899 serial->tx_urb, in hso_mux_serial_write_data()
1900 &serial->ctrl_req_tx, in hso_mux_serial_write_data()
1901 serial->tx_data, serial->tx_data_count); in hso_mux_serial_write_data()
1907 struct hso_serial *serial = urb->context; in hso_std_serial_write_bulk_callback() local
1912 if (!serial) { in hso_std_serial_write_bulk_callback()
1913 hso_dbg(0x1, "serial == NULL\n"); in hso_std_serial_write_bulk_callback()
1917 spin_lock_irqsave(&serial->serial_lock, flags); in hso_std_serial_write_bulk_callback()
1918 serial->tx_urb_used = 0; in hso_std_serial_write_bulk_callback()
1919 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_std_serial_write_bulk_callback()
1921 handle_usb_error(status, __func__, serial->parent); in hso_std_serial_write_bulk_callback()
1924 hso_put_activity(serial->parent); in hso_std_serial_write_bulk_callback()
1925 tty_port_tty_wakeup(&serial->port); in hso_std_serial_write_bulk_callback()
1926 hso_kick_transmit(serial); in hso_std_serial_write_bulk_callback()
1931 /* called for writing diag or CS serial port */
1932 static int hso_std_serial_write_data(struct hso_serial *serial) in hso_std_serial_write_data() argument
1934 int count = serial->tx_data_count; in hso_std_serial_write_data()
1937 usb_fill_bulk_urb(serial->tx_urb, in hso_std_serial_write_data()
1938 serial->parent->usb, in hso_std_serial_write_data()
1939 usb_sndbulkpipe(serial->parent->usb, in hso_std_serial_write_data()
1940 serial->out_endp-> in hso_std_serial_write_data()
1942 serial->tx_data, serial->tx_data_count, in hso_std_serial_write_data()
1943 hso_std_serial_write_bulk_callback, serial); in hso_std_serial_write_data()
1945 result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC); in hso_std_serial_write_data()
1947 dev_warn(&serial->parent->usb->dev, in hso_std_serial_write_data()
1955 /* callback after read or write on muxed serial port */
1958 struct hso_serial *serial = urb->context; in ctrl_callback() local
1964 if (!serial) in ctrl_callback()
1967 spin_lock_irqsave(&serial->serial_lock, flags); in ctrl_callback()
1968 serial->tx_urb_used = 0; in ctrl_callback()
1969 spin_unlock_irqrestore(&serial->serial_lock, flags); in ctrl_callback()
1971 handle_usb_error(status, __func__, serial->parent); in ctrl_callback()
1984 serial->rx_urb_filled[0] = 1; in ctrl_callback()
1985 spin_lock_irqsave(&serial->serial_lock, flags); in ctrl_callback()
1986 put_rxbuf_data_and_resubmit_ctrl_urb(serial); in ctrl_callback()
1987 spin_unlock_irqrestore(&serial->serial_lock, flags); in ctrl_callback()
1989 hso_put_activity(serial->parent); in ctrl_callback()
1990 tty_port_tty_wakeup(&serial->port); in ctrl_callback()
1992 hso_kick_transmit(serial); in ctrl_callback()
1996 /* handle RX data for serial port */
1997 static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial) in put_rxbuf_data() argument
2003 if (urb == NULL || serial == NULL) { in put_rxbuf_data()
2004 hso_dbg(0x1, "serial = NULL\n"); in put_rxbuf_data()
2008 tty = tty_port_tty_get(&serial->port); in put_rxbuf_data()
2017 count = tty_buffer_request_room(&serial->port, urb->actual_length); in put_rxbuf_data()
2019 tty_insert_flip_string(&serial->port, urb->transfer_buffer, in put_rxbuf_data()
2021 tty_flip_buffer_push(&serial->port); in put_rxbuf_data()
2023 dev_warn(&serial->parent->usb->dev, in put_rxbuf_data()
2029 serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0; in put_rxbuf_data()
2142 struct hso_serial *serial = dev2ser(hso_dev); in hso_start_serial_device() local
2144 if (!serial) in hso_start_serial_device()
2149 if (!(serial->parent->port_spec & HSO_INTF_MUX)) { in hso_start_serial_device()
2150 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_start_serial_device()
2151 usb_fill_bulk_urb(serial->rx_urb[i], in hso_start_serial_device()
2152 serial->parent->usb, in hso_start_serial_device()
2153 usb_rcvbulkpipe(serial->parent->usb, in hso_start_serial_device()
2154 serial->in_endp-> in hso_start_serial_device()
2157 serial->rx_data[i], in hso_start_serial_device()
2158 serial->rx_data_length, in hso_start_serial_device()
2160 serial); in hso_start_serial_device()
2161 result = usb_submit_urb(serial->rx_urb[i], flags); in hso_start_serial_device()
2163 dev_warn(&serial->parent->usb->dev, in hso_start_serial_device()
2170 mutex_lock(&serial->shared_int->shared_int_lock); in hso_start_serial_device()
2171 if (!serial->shared_int->use_count) { in hso_start_serial_device()
2173 hso_mux_submit_intr_urb(serial->shared_int, in hso_start_serial_device()
2176 serial->shared_int->use_count++; in hso_start_serial_device()
2177 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_start_serial_device()
2179 if (serial->tiocmget) in hso_start_serial_device()
2180 tiocmget_submit_urb(serial, in hso_start_serial_device()
2181 serial->tiocmget, in hso_start_serial_device()
2182 serial->parent->usb); in hso_start_serial_device()
2189 struct hso_serial *serial = dev2ser(hso_dev); in hso_stop_serial_device() local
2192 if (!serial) in hso_stop_serial_device()
2195 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_stop_serial_device()
2196 if (serial->rx_urb[i]) { in hso_stop_serial_device()
2197 usb_kill_urb(serial->rx_urb[i]); in hso_stop_serial_device()
2198 serial->rx_urb_filled[i] = 0; in hso_stop_serial_device()
2201 serial->curr_rx_urb_idx = 0; in hso_stop_serial_device()
2203 if (serial->tx_urb) in hso_stop_serial_device()
2204 usb_kill_urb(serial->tx_urb); in hso_stop_serial_device()
2206 if (serial->shared_int) { in hso_stop_serial_device()
2207 mutex_lock(&serial->shared_int->shared_int_lock); in hso_stop_serial_device()
2208 if (serial->shared_int->use_count && in hso_stop_serial_device()
2209 (--serial->shared_int->use_count == 0)) { in hso_stop_serial_device()
2212 urb = serial->shared_int->shared_intr_urb; in hso_stop_serial_device()
2216 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_stop_serial_device()
2218 tiocmget = serial->tiocmget; in hso_stop_serial_device()
2227 static void hso_serial_tty_unregister(struct hso_serial *serial) in hso_serial_tty_unregister() argument
2229 tty_unregister_device(tty_drv, serial->minor); in hso_serial_tty_unregister()
2230 release_minor(serial); in hso_serial_tty_unregister()
2233 static void hso_serial_common_free(struct hso_serial *serial) in hso_serial_common_free() argument
2237 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_serial_common_free()
2239 usb_free_urb(serial->rx_urb[i]); in hso_serial_common_free()
2241 kfree(serial->rx_data[i]); in hso_serial_common_free()
2245 usb_free_urb(serial->tx_urb); in hso_serial_common_free()
2246 kfree(serial->tx_buffer); in hso_serial_common_free()
2247 kfree(serial->tx_data); in hso_serial_common_free()
2248 tty_port_destroy(&serial->port); in hso_serial_common_free()
2251 static int hso_serial_common_create(struct hso_serial *serial, int num_urbs, in hso_serial_common_create() argument
2256 tty_port_init(&serial->port); in hso_serial_common_create()
2258 if (obtain_minor(serial)) in hso_serial_common_create()
2262 serial->parent->dev = tty_port_register_device_attr(&serial->port, in hso_serial_common_create()
2263 tty_drv, serial->minor, &serial->parent->interface->dev, in hso_serial_common_create()
2264 serial->parent, hso_serial_dev_groups); in hso_serial_common_create()
2265 if (IS_ERR(serial->parent->dev)) { in hso_serial_common_create()
2266 release_minor(serial); in hso_serial_common_create()
2270 serial->magic = HSO_SERIAL_MAGIC; in hso_serial_common_create()
2271 spin_lock_init(&serial->serial_lock); in hso_serial_common_create()
2272 serial->num_rx_urbs = num_urbs; in hso_serial_common_create()
2277 serial->rx_data_length = rx_size; in hso_serial_common_create()
2278 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_serial_common_create()
2279 serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); in hso_serial_common_create()
2280 if (!serial->rx_urb[i]) in hso_serial_common_create()
2282 serial->rx_urb[i]->transfer_buffer = NULL; in hso_serial_common_create()
2283 serial->rx_urb[i]->transfer_buffer_length = 0; in hso_serial_common_create()
2284 serial->rx_data[i] = kzalloc(serial->rx_data_length, in hso_serial_common_create()
2286 if (!serial->rx_data[i]) in hso_serial_common_create()
2291 serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL); in hso_serial_common_create()
2292 if (!serial->tx_urb) in hso_serial_common_create()
2294 serial->tx_urb->transfer_buffer = NULL; in hso_serial_common_create()
2295 serial->tx_urb->transfer_buffer_length = 0; in hso_serial_common_create()
2297 serial->tx_data_count = 0; in hso_serial_common_create()
2298 serial->tx_buffer_count = 0; in hso_serial_common_create()
2299 serial->tx_data_length = tx_size; in hso_serial_common_create()
2300 serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL); in hso_serial_common_create()
2301 if (!serial->tx_data) in hso_serial_common_create()
2304 serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL); in hso_serial_common_create()
2305 if (!serial->tx_buffer) in hso_serial_common_create()
2310 hso_serial_tty_unregister(serial); in hso_serial_common_create()
2312 hso_serial_common_free(serial); in hso_serial_common_create()
2575 static void hso_free_tiomget(struct hso_serial *serial) in hso_free_tiomget() argument
2578 if (!serial) in hso_free_tiomget()
2580 tiocmget = serial->tiocmget; in hso_free_tiomget()
2584 serial->tiocmget = NULL; in hso_free_tiomget()
2594 struct hso_serial *serial = dev2ser(hso_dev); in hso_free_serial_device() local
2596 if (!serial) in hso_free_serial_device()
2599 hso_serial_common_free(serial); in hso_free_serial_device()
2601 if (serial->shared_int) { in hso_free_serial_device()
2602 mutex_lock(&serial->shared_int->shared_int_lock); in hso_free_serial_device()
2603 if (--serial->shared_int->ref_count == 0) in hso_free_serial_device()
2604 hso_free_shared_int(serial->shared_int); in hso_free_serial_device()
2606 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_free_serial_device()
2608 hso_free_tiomget(serial); in hso_free_serial_device()
2609 kfree(serial); in hso_free_serial_device()
2618 struct hso_serial *serial; in hso_create_bulk_serial_device() local
2626 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in hso_create_bulk_serial_device()
2627 if (!serial) in hso_create_bulk_serial_device()
2630 serial->parent = hso_dev; in hso_create_bulk_serial_device()
2631 hso_dev->port_data.dev_serial = serial; in hso_create_bulk_serial_device()
2635 serial->tiocmget = kzalloc(sizeof(struct hso_tiocmget), in hso_create_bulk_serial_device()
2637 if (!serial->tiocmget) in hso_create_bulk_serial_device()
2639 serial->tiocmget->serial_state_notification in hso_create_bulk_serial_device()
2642 if (!serial->tiocmget->serial_state_notification) in hso_create_bulk_serial_device()
2644 tiocmget = serial->tiocmget; in hso_create_bulk_serial_device()
2663 if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE, in hso_create_bulk_serial_device()
2667 serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, in hso_create_bulk_serial_device()
2669 if (!serial->in_endp) { in hso_create_bulk_serial_device()
2675 (serial->out_endp = in hso_create_bulk_serial_device()
2681 serial->write_data = hso_std_serial_write_data; in hso_create_bulk_serial_device()
2690 hso_serial_tty_unregister(serial); in hso_create_bulk_serial_device()
2691 hso_serial_common_free(serial); in hso_create_bulk_serial_device()
2693 hso_free_tiomget(serial); in hso_create_bulk_serial_device()
2694 kfree(serial); in hso_create_bulk_serial_device()
2706 struct hso_serial *serial; in hso_create_mux_serial_device() local
2720 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in hso_create_mux_serial_device()
2721 if (!serial) in hso_create_mux_serial_device()
2724 hso_dev->port_data.dev_serial = serial; in hso_create_mux_serial_device()
2725 serial->parent = hso_dev; in hso_create_mux_serial_device()
2728 (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE)) in hso_create_mux_serial_device()
2731 serial->tx_data_length--; in hso_create_mux_serial_device()
2732 serial->write_data = hso_mux_serial_write_data; in hso_create_mux_serial_device()
2734 serial->shared_int = mux; in hso_create_mux_serial_device()
2735 mutex_lock(&serial->shared_int->shared_int_lock); in hso_create_mux_serial_device()
2736 serial->shared_int->ref_count++; in hso_create_mux_serial_device()
2737 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_create_mux_serial_device()
2746 kfree(serial); in hso_create_mux_serial_device()
3028 /* Stop all serial ports */ in hso_suspend()
3057 /* Start all serial ports */ in hso_resume()
3106 struct hso_serial *serial; in hso_free_interface() local
3112 serial = dev2ser(serial_table[i]); in hso_free_interface()
3113 tty_port_tty_hangup(&serial->port, false); in hso_free_interface()
3114 mutex_lock(&serial->parent->mutex); in hso_free_interface()
3115 serial->parent->usb_gone = 1; in hso_free_interface()
3116 mutex_unlock(&serial->parent->mutex); in hso_free_interface()
3119 hso_serial_tty_unregister(serial); in hso_free_interface()
3120 kref_put(&serial->parent->ref, hso_serial_ref_free); in hso_free_interface()
3184 /* interrupt urb needs to be submitted, used for serial read of muxed port */
3206 /* operations setup of the serial interface */
3242 /* Initialise the serial table semaphore and table */ in hso_init()