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 */
517 static int hso_urb_to_index(struct hso_serial *serial, struct urb *urb) in hso_urb_to_index() argument
521 for (idx = 0; idx < serial->num_rx_urbs; idx++) in hso_urb_to_index()
522 if (serial->rx_urb[idx] == urb) in hso_urb_to_index()
524 dev_err(serial->parent->dev, "hso_urb_to_index failed\n"); in hso_urb_to_index()
603 struct hso_serial *serial = NULL; in get_serial_by_index() local
608 serial = dev2ser(serial_table[index]); in get_serial_by_index()
611 return serial; in get_serial_by_index()
628 pr_err("%s: no free serial devices in table\n", __func__); in get_free_serial_index()
632 static void set_serial_by_index(unsigned index, struct hso_serial *serial) in set_serial_by_index() argument
637 if (serial) in set_serial_by_index()
638 serial_table[index] = serial->parent; in set_serial_by_index()
1043 /* Serial driver functions */
1087 struct hso_serial *serial = tty->driver_data; in _hso_serial_set_termios() local
1089 if (!serial) { in _hso_serial_set_termios()
1094 hso_dbg(0x8, "port %d\n", serial->minor); in _hso_serial_set_termios()
1113 static void hso_resubmit_rx_bulk_urb(struct hso_serial *serial, struct urb *urb) in hso_resubmit_rx_bulk_urb() argument
1118 usb_fill_bulk_urb(urb, serial->parent->usb, in hso_resubmit_rx_bulk_urb()
1119 usb_rcvbulkpipe(serial->parent->usb, in hso_resubmit_rx_bulk_urb()
1120 serial->in_endp-> in hso_resubmit_rx_bulk_urb()
1122 urb->transfer_buffer, serial->rx_data_length, in hso_resubmit_rx_bulk_urb()
1123 hso_std_serial_read_bulk_callback, serial); in hso_resubmit_rx_bulk_urb()
1128 dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d\n", in hso_resubmit_rx_bulk_urb()
1136 static void put_rxbuf_data_and_resubmit_bulk_urb(struct hso_serial *serial) in put_rxbuf_data_and_resubmit_bulk_urb() argument
1141 while (serial->rx_urb_filled[serial->curr_rx_urb_idx]) { in put_rxbuf_data_and_resubmit_bulk_urb()
1142 curr_urb = serial->rx_urb[serial->curr_rx_urb_idx]; in put_rxbuf_data_and_resubmit_bulk_urb()
1143 count = put_rxbuf_data(curr_urb, serial); in put_rxbuf_data_and_resubmit_bulk_urb()
1147 serial->curr_rx_urb_idx++; in put_rxbuf_data_and_resubmit_bulk_urb()
1148 if (serial->curr_rx_urb_idx >= serial->num_rx_urbs) in put_rxbuf_data_and_resubmit_bulk_urb()
1149 serial->curr_rx_urb_idx = 0; in put_rxbuf_data_and_resubmit_bulk_urb()
1150 hso_resubmit_rx_bulk_urb(serial, curr_urb); in put_rxbuf_data_and_resubmit_bulk_urb()
1155 static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial) in put_rxbuf_data_and_resubmit_ctrl_urb() argument
1160 urb = serial->rx_urb[0]; in put_rxbuf_data_and_resubmit_ctrl_urb()
1161 if (serial->port.count > 0) { in put_rxbuf_data_and_resubmit_ctrl_urb()
1162 count = put_rxbuf_data(urb, serial); in put_rxbuf_data_and_resubmit_ctrl_urb()
1169 (serial->rx_state == RX_PENDING))) { in put_rxbuf_data_and_resubmit_ctrl_urb()
1170 serial->rx_state = RX_SENT; in put_rxbuf_data_and_resubmit_ctrl_urb()
1171 hso_mux_serial_read(serial); in put_rxbuf_data_and_resubmit_ctrl_urb()
1173 serial->rx_state = RX_IDLE; in put_rxbuf_data_and_resubmit_ctrl_urb()
1180 struct hso_serial *serial = urb->context; in hso_std_serial_read_bulk_callback() local
1187 if (!serial) { in hso_std_serial_read_bulk_callback()
1188 hso_dbg(0x1, "serial == NULL\n"); in hso_std_serial_read_bulk_callback()
1192 handle_usb_error(status, __func__, serial->parent); in hso_std_serial_read_bulk_callback()
1200 if (serial->port.count == 0) in hso_std_serial_read_bulk_callback()
1203 if (serial->parent->port_spec & HSO_INFO_CRC_BUG) in hso_std_serial_read_bulk_callback()
1204 fix_crc_bug(urb, serial->in_endp->wMaxPacketSize); in hso_std_serial_read_bulk_callback()
1206 spin_lock_irqsave(&serial->serial_lock, flags); in hso_std_serial_read_bulk_callback()
1207 serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1; in hso_std_serial_read_bulk_callback()
1208 put_rxbuf_data_and_resubmit_bulk_urb(serial); in hso_std_serial_read_bulk_callback()
1209 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_std_serial_read_bulk_callback()
1218 struct hso_serial *serial = (struct hso_serial *)data; in hso_unthrottle_tasklet() local
1221 spin_lock_irqsave(&serial->serial_lock, flags); in hso_unthrottle_tasklet()
1222 if ((serial->parent->port_spec & HSO_INTF_MUX)) in hso_unthrottle_tasklet()
1223 put_rxbuf_data_and_resubmit_ctrl_urb(serial); in hso_unthrottle_tasklet()
1225 put_rxbuf_data_and_resubmit_bulk_urb(serial); in hso_unthrottle_tasklet()
1226 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_unthrottle_tasklet()
1231 struct hso_serial *serial = tty->driver_data; in hso_unthrottle() local
1233 tasklet_hi_schedule(&serial->unthrottle_tasklet); in hso_unthrottle()
1236 /* open the requested serial port */
1239 struct hso_serial *serial = get_serial_by_index(tty->index); in hso_serial_open() local
1243 if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) { in hso_serial_open()
1250 mutex_lock(&serial->parent->mutex); in hso_serial_open()
1251 result = usb_autopm_get_interface(serial->parent->interface); in hso_serial_open()
1255 hso_dbg(0x1, "Opening %d\n", serial->minor); in hso_serial_open()
1258 tty->driver_data = serial; in hso_serial_open()
1259 tty_port_tty_set(&serial->port, tty); in hso_serial_open()
1262 serial->port.count++; in hso_serial_open()
1263 if (serial->port.count == 1) { in hso_serial_open()
1264 serial->rx_state = RX_IDLE; in hso_serial_open()
1267 tasklet_init(&serial->unthrottle_tasklet, in hso_serial_open()
1269 (unsigned long)serial); in hso_serial_open()
1270 result = hso_start_serial_device(serial->parent, GFP_KERNEL); in hso_serial_open()
1272 hso_stop_serial_device(serial->parent); in hso_serial_open()
1273 serial->port.count--; in hso_serial_open()
1275 kref_get(&serial->parent->ref); in hso_serial_open()
1281 usb_autopm_put_interface(serial->parent->interface); in hso_serial_open()
1287 mutex_unlock(&serial->parent->mutex); in hso_serial_open()
1291 /* close the requested serial port */
1294 struct hso_serial *serial = tty->driver_data; in hso_serial_close() local
1297 hso_dbg(0x1, "Closing serial port\n"); in hso_serial_close()
1300 if (serial == NULL) in hso_serial_close()
1303 mutex_lock(&serial->parent->mutex); in hso_serial_close()
1304 usb_gone = serial->parent->usb_gone; in hso_serial_close()
1307 usb_autopm_get_interface(serial->parent->interface); in hso_serial_close()
1311 serial->port.count--; in hso_serial_close()
1313 if (serial->port.count <= 0) { in hso_serial_close()
1314 serial->port.count = 0; in hso_serial_close()
1315 tty_port_tty_set(&serial->port, NULL); in hso_serial_close()
1317 hso_stop_serial_device(serial->parent); in hso_serial_close()
1318 tasklet_kill(&serial->unthrottle_tasklet); in hso_serial_close()
1322 usb_autopm_put_interface(serial->parent->interface); in hso_serial_close()
1324 mutex_unlock(&serial->parent->mutex); in hso_serial_close()
1327 /* close the requested serial port */
1331 struct hso_serial *serial = tty->driver_data; in hso_serial_write() local
1336 if (serial == NULL) { in hso_serial_write()
1337 pr_err("%s: serial is NULL\n", __func__); in hso_serial_write()
1341 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_write()
1343 space = serial->tx_data_length - serial->tx_buffer_count; in hso_serial_write()
1349 memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes); in hso_serial_write()
1350 serial->tx_buffer_count += tx_bytes; in hso_serial_write()
1353 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_write()
1355 hso_kick_transmit(serial); in hso_serial_write()
1363 struct hso_serial *serial = tty->driver_data; in hso_serial_write_room() local
1367 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_write_room()
1368 room = serial->tx_data_length - serial->tx_buffer_count; in hso_serial_write_room()
1369 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_write_room()
1377 struct hso_serial *serial = tty->driver_data; in hso_serial_cleanup() local
1379 if (!serial) in hso_serial_cleanup()
1382 kref_put(&serial->parent->ref, hso_serial_ref_free); in hso_serial_cleanup()
1388 struct hso_serial *serial = tty->driver_data; in hso_serial_set_termios() local
1397 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_set_termios()
1398 if (serial->port.count) in hso_serial_set_termios()
1402 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_set_termios()
1410 struct hso_serial *serial = tty->driver_data; in hso_serial_chars_in_buffer() local
1415 if (serial == NULL) in hso_serial_chars_in_buffer()
1418 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_chars_in_buffer()
1419 chars = serial->tx_buffer_count; in hso_serial_chars_in_buffer()
1420 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_chars_in_buffer()
1424 static int tiocmget_submit_urb(struct hso_serial *serial, in tiocmget_submit_urb() argument
1430 if (serial->parent->usb_gone) in tiocmget_submit_urb()
1438 tiocmget_intr_callback, serial, in tiocmget_submit_urb()
1451 struct hso_serial *serial = urb->context; in tiocmget_intr_callback() local
1462 if (!serial) in tiocmget_intr_callback()
1465 handle_usb_error(status, __func__, serial->parent); in tiocmget_intr_callback()
1470 tiocmget = serial->tiocmget; in tiocmget_intr_callback()
1473 BUG_ON((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM); in tiocmget_intr_callback()
1475 usb = serial->parent->usb; in tiocmget_intr_callback()
1476 interface = serial->parent->interface; in tiocmget_intr_callback()
1490 "hso received invalid serial state notification\n"); in tiocmget_intr_callback()
1500 spin_lock_irqsave(&serial->serial_lock, flags); in tiocmget_intr_callback()
1523 spin_unlock_irqrestore(&serial->serial_lock, flags); in tiocmget_intr_callback()
1529 tiocmget_submit_urb(serial, in tiocmget_intr_callback()
1531 serial->parent->usb); in tiocmget_intr_callback()
1535 * next few functions largely stolen from drivers/serial/serial_core.c
1543 hso_wait_modem_status(struct hso_serial *serial, unsigned long arg) in hso_wait_modem_status() argument
1550 tiocmget = serial->tiocmget; in hso_wait_modem_status()
1556 spin_lock_irq(&serial->serial_lock); in hso_wait_modem_status()
1558 spin_unlock_irq(&serial->serial_lock); in hso_wait_modem_status()
1561 spin_lock_irq(&serial->serial_lock); in hso_wait_modem_status()
1563 spin_unlock_irq(&serial->serial_lock); in hso_wait_modem_status()
1586 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
1595 struct hso_serial *serial = tty->driver_data; in hso_get_count() local
1596 struct hso_tiocmget *tiocmget = serial->tiocmget; in hso_get_count()
1602 spin_lock_irq(&serial->serial_lock); in hso_get_count()
1604 spin_unlock_irq(&serial->serial_lock); in hso_get_count()
1625 struct hso_serial *serial = tty->driver_data; in hso_serial_tiocmget() local
1630 if (!serial) { in hso_serial_tiocmget()
1634 spin_lock_irq(&serial->serial_lock); in hso_serial_tiocmget()
1635 retval = ((serial->rts_state) ? TIOCM_RTS : 0) | in hso_serial_tiocmget()
1636 ((serial->dtr_state) ? TIOCM_DTR : 0); in hso_serial_tiocmget()
1637 tiocmget = serial->tiocmget; in hso_serial_tiocmget()
1649 spin_unlock_irq(&serial->serial_lock); in hso_serial_tiocmget()
1659 struct hso_serial *serial = tty->driver_data; in hso_serial_tiocmset() local
1663 if (!serial) { in hso_serial_tiocmset()
1668 if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM) in hso_serial_tiocmset()
1671 interface = serial->parent->interface; in hso_serial_tiocmset()
1674 spin_lock_irqsave(&serial->serial_lock, flags); in hso_serial_tiocmset()
1676 serial->rts_state = 1; in hso_serial_tiocmset()
1678 serial->dtr_state = 1; in hso_serial_tiocmset()
1681 serial->rts_state = 0; in hso_serial_tiocmset()
1683 serial->dtr_state = 0; in hso_serial_tiocmset()
1685 if (serial->dtr_state) in hso_serial_tiocmset()
1687 if (serial->rts_state) in hso_serial_tiocmset()
1690 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_serial_tiocmset()
1692 return usb_control_msg(serial->parent->usb, in hso_serial_tiocmset()
1693 usb_rcvctrlpipe(serial->parent->usb, 0), 0x22, in hso_serial_tiocmset()
1701 struct hso_serial *serial = tty->driver_data; in hso_serial_ioctl() local
1705 if (!serial) in hso_serial_ioctl()
1709 ret = hso_wait_modem_status(serial, arg); in hso_serial_ioctl()
1720 static void hso_kick_transmit(struct hso_serial *serial) in hso_kick_transmit() argument
1725 spin_lock_irqsave(&serial->serial_lock, flags); in hso_kick_transmit()
1726 if (!serial->tx_buffer_count) in hso_kick_transmit()
1729 if (serial->tx_urb_used) in hso_kick_transmit()
1733 if (hso_get_activity(serial->parent) == -EAGAIN) in hso_kick_transmit()
1737 swap(serial->tx_buffer, serial->tx_data); in hso_kick_transmit()
1738 serial->tx_data_count = serial->tx_buffer_count; in hso_kick_transmit()
1739 serial->tx_buffer_count = 0; in hso_kick_transmit()
1741 /* If serial->tx_data is set, it means we switched buffers */ in hso_kick_transmit()
1742 if (serial->tx_data && serial->write_data) { in hso_kick_transmit()
1743 res = serial->write_data(serial); in hso_kick_transmit()
1745 serial->tx_urb_used = 1; in hso_kick_transmit()
1748 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_kick_transmit()
1751 /* make a request (for reading and writing data to muxed serial port) */
1752 static int mux_device_request(struct hso_serial *serial, u8 type, u16 port, in mux_device_request() argument
1761 if (!serial || !ctrl_urb || !ctrl_req) { in mux_device_request()
1777 pipe = usb_rcvctrlpipe(serial->parent->usb, 0); in mux_device_request()
1784 pipe = usb_sndctrlpipe(serial->parent->usb, 0); in mux_device_request()
1794 serial->parent->usb, in mux_device_request()
1797 ctrl_urb_data, size, ctrl_callback, serial); in mux_device_request()
1812 static int hso_mux_serial_read(struct hso_serial *serial) in hso_mux_serial_read() argument
1814 if (!serial) in hso_mux_serial_read()
1818 memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE); in hso_mux_serial_read()
1821 if (serial->num_rx_urbs != 1) { in hso_mux_serial_read()
1822 dev_err(&serial->parent->interface->dev, in hso_mux_serial_read()
1827 return mux_device_request(serial, in hso_mux_serial_read()
1829 serial->parent->port_spec & HSO_PORT_MASK, in hso_mux_serial_read()
1830 serial->rx_urb[0], in hso_mux_serial_read()
1831 &serial->ctrl_req_rx, in hso_mux_serial_read()
1832 serial->rx_data[0], serial->rx_data_length); in hso_mux_serial_read()
1835 /* used for muxed serial port callback (muxed serial read) */
1839 struct hso_serial *serial; in intr_callback() local
1865 serial = get_serial_by_shared_int_and_type(shared_int, in intr_callback()
1867 if (serial != NULL) { in intr_callback()
1870 spin_lock_irqsave(&serial->serial_lock, flags); in intr_callback()
1871 if (serial->rx_state == RX_IDLE && in intr_callback()
1872 serial->port.count > 0) { in intr_callback()
1875 if (!serial->rx_urb_filled[0]) { in intr_callback()
1876 serial->rx_state = RX_SENT; in intr_callback()
1877 hso_mux_serial_read(serial); in intr_callback()
1879 serial->rx_state = RX_PENDING; in intr_callback()
1884 spin_unlock_irqrestore(&serial->serial_lock, in intr_callback()
1893 /* called for writing to muxed serial port */
1894 static int hso_mux_serial_write_data(struct hso_serial *serial) in hso_mux_serial_write_data() argument
1896 if (NULL == serial) in hso_mux_serial_write_data()
1899 return mux_device_request(serial, in hso_mux_serial_write_data()
1901 serial->parent->port_spec & HSO_PORT_MASK, in hso_mux_serial_write_data()
1902 serial->tx_urb, in hso_mux_serial_write_data()
1903 &serial->ctrl_req_tx, in hso_mux_serial_write_data()
1904 serial->tx_data, serial->tx_data_count); in hso_mux_serial_write_data()
1910 struct hso_serial *serial = urb->context; in hso_std_serial_write_bulk_callback() local
1915 if (!serial) { in hso_std_serial_write_bulk_callback()
1916 hso_dbg(0x1, "serial == NULL\n"); in hso_std_serial_write_bulk_callback()
1920 spin_lock_irqsave(&serial->serial_lock, flags); in hso_std_serial_write_bulk_callback()
1921 serial->tx_urb_used = 0; in hso_std_serial_write_bulk_callback()
1922 spin_unlock_irqrestore(&serial->serial_lock, flags); in hso_std_serial_write_bulk_callback()
1924 handle_usb_error(status, __func__, serial->parent); in hso_std_serial_write_bulk_callback()
1927 hso_put_activity(serial->parent); in hso_std_serial_write_bulk_callback()
1928 tty_port_tty_wakeup(&serial->port); in hso_std_serial_write_bulk_callback()
1929 hso_kick_transmit(serial); in hso_std_serial_write_bulk_callback()
1934 /* called for writing diag or CS serial port */
1935 static int hso_std_serial_write_data(struct hso_serial *serial) in hso_std_serial_write_data() argument
1937 int count = serial->tx_data_count; in hso_std_serial_write_data()
1940 usb_fill_bulk_urb(serial->tx_urb, in hso_std_serial_write_data()
1941 serial->parent->usb, in hso_std_serial_write_data()
1942 usb_sndbulkpipe(serial->parent->usb, in hso_std_serial_write_data()
1943 serial->out_endp-> in hso_std_serial_write_data()
1945 serial->tx_data, serial->tx_data_count, in hso_std_serial_write_data()
1946 hso_std_serial_write_bulk_callback, serial); in hso_std_serial_write_data()
1948 result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC); in hso_std_serial_write_data()
1950 dev_warn(&serial->parent->usb->dev, in hso_std_serial_write_data()
1958 /* callback after read or write on muxed serial port */
1961 struct hso_serial *serial = urb->context; in ctrl_callback() local
1967 if (!serial) in ctrl_callback()
1970 spin_lock_irqsave(&serial->serial_lock, flags); in ctrl_callback()
1971 serial->tx_urb_used = 0; in ctrl_callback()
1972 spin_unlock_irqrestore(&serial->serial_lock, flags); in ctrl_callback()
1974 handle_usb_error(status, __func__, serial->parent); in ctrl_callback()
1987 serial->rx_urb_filled[0] = 1; in ctrl_callback()
1988 spin_lock_irqsave(&serial->serial_lock, flags); in ctrl_callback()
1989 put_rxbuf_data_and_resubmit_ctrl_urb(serial); in ctrl_callback()
1990 spin_unlock_irqrestore(&serial->serial_lock, flags); in ctrl_callback()
1992 hso_put_activity(serial->parent); in ctrl_callback()
1993 tty_port_tty_wakeup(&serial->port); in ctrl_callback()
1995 hso_kick_transmit(serial); in ctrl_callback()
1999 /* handle RX data for serial port */
2000 static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial) in put_rxbuf_data() argument
2006 if (urb == NULL || serial == NULL) { in put_rxbuf_data()
2007 hso_dbg(0x1, "serial = NULL\n"); in put_rxbuf_data()
2011 tty = tty_port_tty_get(&serial->port); in put_rxbuf_data()
2020 count = tty_buffer_request_room(&serial->port, urb->actual_length); in put_rxbuf_data()
2022 tty_insert_flip_string(&serial->port, urb->transfer_buffer, in put_rxbuf_data()
2024 tty_flip_buffer_push(&serial->port); in put_rxbuf_data()
2026 dev_warn(&serial->parent->usb->dev, in put_rxbuf_data()
2032 serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0; in put_rxbuf_data()
2145 struct hso_serial *serial = dev2ser(hso_dev); in hso_start_serial_device() local
2147 if (!serial) in hso_start_serial_device()
2152 if (!(serial->parent->port_spec & HSO_INTF_MUX)) { in hso_start_serial_device()
2153 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_start_serial_device()
2154 usb_fill_bulk_urb(serial->rx_urb[i], in hso_start_serial_device()
2155 serial->parent->usb, in hso_start_serial_device()
2156 usb_rcvbulkpipe(serial->parent->usb, in hso_start_serial_device()
2157 serial->in_endp-> in hso_start_serial_device()
2160 serial->rx_data[i], in hso_start_serial_device()
2161 serial->rx_data_length, in hso_start_serial_device()
2163 serial); in hso_start_serial_device()
2164 result = usb_submit_urb(serial->rx_urb[i], flags); in hso_start_serial_device()
2166 dev_warn(&serial->parent->usb->dev, in hso_start_serial_device()
2173 mutex_lock(&serial->shared_int->shared_int_lock); in hso_start_serial_device()
2174 if (!serial->shared_int->use_count) { in hso_start_serial_device()
2176 hso_mux_submit_intr_urb(serial->shared_int, in hso_start_serial_device()
2179 serial->shared_int->use_count++; in hso_start_serial_device()
2180 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_start_serial_device()
2182 if (serial->tiocmget) in hso_start_serial_device()
2183 tiocmget_submit_urb(serial, in hso_start_serial_device()
2184 serial->tiocmget, in hso_start_serial_device()
2185 serial->parent->usb); in hso_start_serial_device()
2192 struct hso_serial *serial = dev2ser(hso_dev); in hso_stop_serial_device() local
2195 if (!serial) in hso_stop_serial_device()
2198 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_stop_serial_device()
2199 if (serial->rx_urb[i]) { in hso_stop_serial_device()
2200 usb_kill_urb(serial->rx_urb[i]); in hso_stop_serial_device()
2201 serial->rx_urb_filled[i] = 0; in hso_stop_serial_device()
2204 serial->curr_rx_urb_idx = 0; in hso_stop_serial_device()
2206 if (serial->tx_urb) in hso_stop_serial_device()
2207 usb_kill_urb(serial->tx_urb); in hso_stop_serial_device()
2209 if (serial->shared_int) { in hso_stop_serial_device()
2210 mutex_lock(&serial->shared_int->shared_int_lock); in hso_stop_serial_device()
2211 if (serial->shared_int->use_count && in hso_stop_serial_device()
2212 (--serial->shared_int->use_count == 0)) { in hso_stop_serial_device()
2215 urb = serial->shared_int->shared_intr_urb; in hso_stop_serial_device()
2219 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_stop_serial_device()
2221 tiocmget = serial->tiocmget; in hso_stop_serial_device()
2230 static void hso_serial_tty_unregister(struct hso_serial *serial) in hso_serial_tty_unregister() argument
2232 tty_unregister_device(tty_drv, serial->minor); in hso_serial_tty_unregister()
2235 static void hso_serial_common_free(struct hso_serial *serial) in hso_serial_common_free() argument
2239 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_serial_common_free()
2241 usb_free_urb(serial->rx_urb[i]); in hso_serial_common_free()
2243 kfree(serial->rx_data[i]); in hso_serial_common_free()
2247 usb_free_urb(serial->tx_urb); in hso_serial_common_free()
2248 kfree(serial->tx_buffer); in hso_serial_common_free()
2249 kfree(serial->tx_data); in hso_serial_common_free()
2250 tty_port_destroy(&serial->port); in hso_serial_common_free()
2253 static int hso_serial_common_create(struct hso_serial *serial, int num_urbs, in hso_serial_common_create() argument
2259 tty_port_init(&serial->port); in hso_serial_common_create()
2266 serial->parent->dev = tty_port_register_device_attr(&serial->port, in hso_serial_common_create()
2267 tty_drv, minor, &serial->parent->interface->dev, in hso_serial_common_create()
2268 serial->parent, hso_serial_dev_groups); in hso_serial_common_create()
2269 if (IS_ERR(serial->parent->dev)) in hso_serial_common_create()
2273 serial->minor = minor; in hso_serial_common_create()
2274 serial->magic = HSO_SERIAL_MAGIC; in hso_serial_common_create()
2275 spin_lock_init(&serial->serial_lock); in hso_serial_common_create()
2276 serial->num_rx_urbs = num_urbs; in hso_serial_common_create()
2281 serial->rx_data_length = rx_size; in hso_serial_common_create()
2282 for (i = 0; i < serial->num_rx_urbs; i++) { in hso_serial_common_create()
2283 serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); in hso_serial_common_create()
2284 if (!serial->rx_urb[i]) in hso_serial_common_create()
2286 serial->rx_urb[i]->transfer_buffer = NULL; in hso_serial_common_create()
2287 serial->rx_urb[i]->transfer_buffer_length = 0; in hso_serial_common_create()
2288 serial->rx_data[i] = kzalloc(serial->rx_data_length, in hso_serial_common_create()
2290 if (!serial->rx_data[i]) in hso_serial_common_create()
2295 serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL); in hso_serial_common_create()
2296 if (!serial->tx_urb) in hso_serial_common_create()
2298 serial->tx_urb->transfer_buffer = NULL; in hso_serial_common_create()
2299 serial->tx_urb->transfer_buffer_length = 0; in hso_serial_common_create()
2301 serial->tx_data_count = 0; in hso_serial_common_create()
2302 serial->tx_buffer_count = 0; in hso_serial_common_create()
2303 serial->tx_data_length = tx_size; in hso_serial_common_create()
2304 serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL); in hso_serial_common_create()
2305 if (!serial->tx_data) in hso_serial_common_create()
2308 serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL); in hso_serial_common_create()
2309 if (!serial->tx_buffer) in hso_serial_common_create()
2314 hso_serial_tty_unregister(serial); in hso_serial_common_create()
2316 hso_serial_common_free(serial); in hso_serial_common_create()
2561 static void hso_free_tiomget(struct hso_serial *serial) in hso_free_tiomget() argument
2564 if (!serial) in hso_free_tiomget()
2566 tiocmget = serial->tiocmget; in hso_free_tiomget()
2570 serial->tiocmget = NULL; in hso_free_tiomget()
2580 struct hso_serial *serial = dev2ser(hso_dev); in hso_free_serial_device() local
2582 if (!serial) in hso_free_serial_device()
2585 hso_serial_common_free(serial); in hso_free_serial_device()
2587 if (serial->shared_int) { in hso_free_serial_device()
2588 mutex_lock(&serial->shared_int->shared_int_lock); in hso_free_serial_device()
2589 if (--serial->shared_int->ref_count == 0) in hso_free_serial_device()
2590 hso_free_shared_int(serial->shared_int); in hso_free_serial_device()
2592 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_free_serial_device()
2594 hso_free_tiomget(serial); in hso_free_serial_device()
2595 kfree(serial); in hso_free_serial_device()
2604 struct hso_serial *serial; in hso_create_bulk_serial_device() local
2612 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in hso_create_bulk_serial_device()
2613 if (!serial) in hso_create_bulk_serial_device()
2616 serial->parent = hso_dev; in hso_create_bulk_serial_device()
2617 hso_dev->port_data.dev_serial = serial; in hso_create_bulk_serial_device()
2621 serial->tiocmget = kzalloc(sizeof(struct hso_tiocmget), in hso_create_bulk_serial_device()
2623 serial->tiocmget->serial_state_notification in hso_create_bulk_serial_device()
2626 /* it isn't going to break our heart if serial->tiocmget in hso_create_bulk_serial_device()
2629 if (serial->tiocmget && serial->tiocmget->serial_state_notification) { in hso_create_bulk_serial_device()
2630 tiocmget = serial->tiocmget; in hso_create_bulk_serial_device()
2644 hso_free_tiomget(serial); in hso_create_bulk_serial_device()
2650 if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE, in hso_create_bulk_serial_device()
2654 serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, in hso_create_bulk_serial_device()
2656 if (!serial->in_endp) { in hso_create_bulk_serial_device()
2662 (serial->out_endp = in hso_create_bulk_serial_device()
2668 serial->write_data = hso_std_serial_write_data; in hso_create_bulk_serial_device()
2670 /* and record this serial */ in hso_create_bulk_serial_device()
2671 set_serial_by_index(serial->minor, serial); in hso_create_bulk_serial_device()
2680 hso_serial_tty_unregister(serial); in hso_create_bulk_serial_device()
2681 hso_serial_common_free(serial); in hso_create_bulk_serial_device()
2683 hso_free_tiomget(serial); in hso_create_bulk_serial_device()
2684 kfree(serial); in hso_create_bulk_serial_device()
2696 struct hso_serial *serial; in hso_create_mux_serial_device() local
2710 serial = kzalloc(sizeof(*serial), GFP_KERNEL); in hso_create_mux_serial_device()
2711 if (!serial) in hso_create_mux_serial_device()
2714 hso_dev->port_data.dev_serial = serial; in hso_create_mux_serial_device()
2715 serial->parent = hso_dev; in hso_create_mux_serial_device()
2718 (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE)) in hso_create_mux_serial_device()
2721 serial->tx_data_length--; in hso_create_mux_serial_device()
2722 serial->write_data = hso_mux_serial_write_data; in hso_create_mux_serial_device()
2724 serial->shared_int = mux; in hso_create_mux_serial_device()
2725 mutex_lock(&serial->shared_int->shared_int_lock); in hso_create_mux_serial_device()
2726 serial->shared_int->ref_count++; in hso_create_mux_serial_device()
2727 mutex_unlock(&serial->shared_int->shared_int_lock); in hso_create_mux_serial_device()
2729 /* and record this serial */ in hso_create_mux_serial_device()
2730 set_serial_by_index(serial->minor, serial); in hso_create_mux_serial_device()
2739 if (serial) { in hso_create_mux_serial_device()
2740 tty_unregister_device(tty_drv, serial->minor); in hso_create_mux_serial_device()
2741 kfree(serial); in hso_create_mux_serial_device()
3023 /* Stop all serial ports */ in hso_suspend()
3052 /* Start all serial ports */ in hso_resume()
3101 struct hso_serial *serial; in hso_free_interface() local
3107 serial = dev2ser(serial_table[i]); in hso_free_interface()
3108 tty_port_tty_hangup(&serial->port, false); in hso_free_interface()
3109 mutex_lock(&serial->parent->mutex); in hso_free_interface()
3110 serial->parent->usb_gone = 1; in hso_free_interface()
3111 mutex_unlock(&serial->parent->mutex); in hso_free_interface()
3114 hso_serial_tty_unregister(serial); in hso_free_interface()
3180 /* interrupt urb needs to be submitted, used for serial read of muxed port */
3202 /* operations setup of the serial interface */
3238 /* Initialise the serial table semaphore and table */ in hso_init()