Lines Matching +full:dcd +full:- +full:override
1 // SPDX-License-Identifier: GPL-1.0+
96 #include <linux/dma-mapping.h>
105 #define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
107 #define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
136 u32 phys_addr; /* 32-bit flat physical address of data buffer */
141 u32 link; /* 32-bit flat link to next buffer entry */
393 #define RDMR 0x82 /* Receive DMA mode Register (non-shared) */
554 #define usc_UnlatchTxstatusBits(a,b) usc_OutReg( (a), TCSR, (u16)((a)->tcsr_value + ((b) & 0x00FF))…
674 #define usc_TCmd(a,b) usc_OutReg((a), TCSR, (u16)((a)->tcsr_value + (b)))
714 #define dev_to_port(D) (dev_to_hdlc(D)->priv)
836 /* set non-zero on successful registration with PCI subsystem */
846 * Set this param to non-zero to load eax with the
848 * This is useful for use with gdb and add-symbol-file command.
914 * (gdb) to get the .text address for the add-symbol-file command.
935 if (info->magic != MGSL_MAGIC) { in mgsl_paranoia_check()
952 * ldisc_receive_buf - pass receive data to line discipline
963 if (ld->ops->receive_buf) in ldisc_receive_buf()
964 ld->ops->receive_buf(tty, data, flags, count); in ldisc_receive_buf()
976 struct mgsl_struct *info = tty->driver_data; in mgsl_stop()
979 if (mgsl_paranoia_check(info, tty->name, "mgsl_stop")) in mgsl_stop()
983 printk("mgsl_stop(%s)\n",info->device_name); in mgsl_stop()
985 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_stop()
986 if (info->tx_enabled) in mgsl_stop()
988 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_stop()
999 struct mgsl_struct *info = tty->driver_data; in mgsl_start()
1002 if (mgsl_paranoia_check(info, tty->name, "mgsl_start")) in mgsl_start()
1006 printk("mgsl_start(%s)\n",info->device_name); in mgsl_start()
1008 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_start()
1009 if (!info->tx_enabled) in mgsl_start()
1011 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_start()
1027 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_action()
1029 if (info->pending_bh & BH_RECEIVE) { in mgsl_bh_action()
1030 info->pending_bh &= ~BH_RECEIVE; in mgsl_bh_action()
1032 } else if (info->pending_bh & BH_TRANSMIT) { in mgsl_bh_action()
1033 info->pending_bh &= ~BH_TRANSMIT; in mgsl_bh_action()
1035 } else if (info->pending_bh & BH_STATUS) { in mgsl_bh_action()
1036 info->pending_bh &= ~BH_STATUS; in mgsl_bh_action()
1042 info->bh_running = false; in mgsl_bh_action()
1043 info->bh_requested = false; in mgsl_bh_action()
1046 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_action()
1062 __FILE__,__LINE__,info->device_name); in mgsl_bh_handler()
1064 info->bh_running = true; in mgsl_bh_handler()
1093 __FILE__,__LINE__,info->device_name); in mgsl_bh_handler()
1099 (info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame); in mgsl_bh_receive()
1103 __FILE__,__LINE__,info->device_name); in mgsl_bh_receive()
1107 if (info->rx_rcc_underrun) { in mgsl_bh_receive()
1109 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_receive()
1111 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_receive()
1119 struct tty_struct *tty = info->port.tty; in mgsl_bh_transmit()
1124 __FILE__,__LINE__,info->device_name); in mgsl_bh_transmit()
1132 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_transmit()
1133 if ( !info->tx_active && info->loopmode_send_done_requested ) in mgsl_bh_transmit()
1135 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_transmit()
1142 __FILE__,__LINE__,info->device_name); in mgsl_bh_status()
1144 info->ri_chkcount = 0; in mgsl_bh_status()
1145 info->dsr_chkcount = 0; in mgsl_bh_status()
1146 info->dcd_chkcount = 0; in mgsl_bh_status()
1147 info->cts_chkcount = 0; in mgsl_bh_status()
1168 info->loopmode_insert_requested && in mgsl_isr_receive_status()
1171 ++info->icount.rxabort; in mgsl_isr_receive_status()
1172 info->loopmode_insert_requested = false; in mgsl_isr_receive_status()
1175 info->cmr_value &= ~BIT13; in mgsl_isr_receive_status()
1176 usc_OutReg(info, CMR, info->cmr_value); in mgsl_isr_receive_status()
1185 info->icount.exithunt++; in mgsl_isr_receive_status()
1187 info->icount.rxidle++; in mgsl_isr_receive_status()
1188 wake_up_interruptible(&info->event_wait_q); in mgsl_isr_receive_status()
1192 info->icount.rxover++; in mgsl_isr_receive_status()
1234 info->icount.txok++; in mgsl_isr_transmit_status()
1236 info->icount.txunder++; in mgsl_isr_transmit_status()
1238 info->icount.txabort++; in mgsl_isr_transmit_status()
1240 info->icount.txunder++; in mgsl_isr_transmit_status()
1242 info->tx_active = false; in mgsl_isr_transmit_status()
1243 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_isr_transmit_status()
1244 del_timer(&info->tx_timer); in mgsl_isr_transmit_status()
1246 if ( info->drop_rts_on_tx_done ) { in mgsl_isr_transmit_status()
1248 if ( info->serial_signals & SerialSignal_RTS ) { in mgsl_isr_transmit_status()
1249 info->serial_signals &= ~SerialSignal_RTS; in mgsl_isr_transmit_status()
1252 info->drop_rts_on_tx_done = false; in mgsl_isr_transmit_status()
1256 if (info->netcount) in mgsl_isr_transmit_status()
1261 if (info->port.tty->stopped || info->port.tty->hw_stopped) { in mgsl_isr_transmit_status()
1265 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_status()
1292 icount = &info->icount; in mgsl_isr_io_pin()
1295 if ((info->ri_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1297 icount->rng++; in mgsl_isr_io_pin()
1299 info->input_signal_events.ri_up++; in mgsl_isr_io_pin()
1301 info->input_signal_events.ri_down++; in mgsl_isr_io_pin()
1304 if ((info->dsr_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1306 icount->dsr++; in mgsl_isr_io_pin()
1308 info->input_signal_events.dsr_up++; in mgsl_isr_io_pin()
1310 info->input_signal_events.dsr_down++; in mgsl_isr_io_pin()
1313 if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1315 icount->dcd++; in mgsl_isr_io_pin()
1317 info->input_signal_events.dcd_up++; in mgsl_isr_io_pin()
1319 info->input_signal_events.dcd_down++; in mgsl_isr_io_pin()
1321 if (info->netcount) { in mgsl_isr_io_pin()
1323 netif_carrier_on(info->netdev); in mgsl_isr_io_pin()
1325 netif_carrier_off(info->netdev); in mgsl_isr_io_pin()
1331 if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1333 icount->cts++; in mgsl_isr_io_pin()
1335 info->input_signal_events.cts_up++; in mgsl_isr_io_pin()
1337 info->input_signal_events.cts_down++; in mgsl_isr_io_pin()
1339 wake_up_interruptible(&info->status_event_wait_q); in mgsl_isr_io_pin()
1340 wake_up_interruptible(&info->event_wait_q); in mgsl_isr_io_pin()
1342 if (tty_port_check_carrier(&info->port) && in mgsl_isr_io_pin()
1345 printk("%s CD now %s...", info->device_name, in mgsl_isr_io_pin()
1348 wake_up_interruptible(&info->port.open_wait); in mgsl_isr_io_pin()
1352 if (info->port.tty) in mgsl_isr_io_pin()
1353 tty_hangup(info->port.tty); in mgsl_isr_io_pin()
1357 if (tty_port_cts_enabled(&info->port) && in mgsl_isr_io_pin()
1359 if (info->port.tty->hw_stopped) { in mgsl_isr_io_pin()
1363 info->port.tty->hw_stopped = 0; in mgsl_isr_io_pin()
1365 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_io_pin()
1372 if (info->port.tty) in mgsl_isr_io_pin()
1373 info->port.tty->hw_stopped = 1; in mgsl_isr_io_pin()
1380 info->pending_bh |= BH_STATUS; in mgsl_isr_io_pin()
1387 info->irq_occurred = true; in mgsl_isr_io_pin()
1403 __FILE__,__LINE__,info->xmit_cnt); in mgsl_isr_transmit_data()
1407 if (info->port.tty->stopped || info->port.tty->hw_stopped) { in mgsl_isr_transmit_data()
1412 if ( info->xmit_cnt ) in mgsl_isr_transmit_data()
1415 info->tx_active = false; in mgsl_isr_transmit_data()
1417 if (info->xmit_cnt < WAKEUP_CHARS) in mgsl_isr_transmit_data()
1418 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_data()
1437 struct mgsl_icount *icount = &info->icount; in mgsl_isr_receive_data()
1458 outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY), in mgsl_isr_receive_data()
1459 info->io_base + CCAR ); in mgsl_isr_receive_data()
1460 DataByte = inb( info->io_base + CCAR ); in mgsl_isr_receive_data()
1468 icount->rx++; in mgsl_isr_receive_data()
1477 icount->brk++; in mgsl_isr_receive_data()
1479 icount->parity++; in mgsl_isr_receive_data()
1481 icount->frame++; in mgsl_isr_receive_data()
1486 icount->overrun++; in mgsl_isr_receive_data()
1490 if (status & info->ignore_status_mask) in mgsl_isr_receive_data()
1493 status &= info->read_status_mask; in mgsl_isr_receive_data()
1497 if (info->port.flags & ASYNC_SAK) in mgsl_isr_receive_data()
1498 do_SAK(info->port.tty); in mgsl_isr_receive_data()
1504 tty_insert_flip_char(&info->port, DataByte, flag); in mgsl_isr_receive_data()
1510 work += tty_insert_flip_char(&info->port, 0, TTY_OVERRUN); in mgsl_isr_receive_data()
1516 __FILE__,__LINE__,icount->rx,icount->brk, in mgsl_isr_receive_data()
1517 icount->parity,icount->frame,icount->overrun); in mgsl_isr_receive_data()
1521 tty_flip_buffer_push(&info->port); in mgsl_isr_receive_data()
1540 (info->params.mode == MGSL_MODE_HDLC)) { in mgsl_isr_misc()
1550 info->pending_bh |= BH_RECEIVE; in mgsl_isr_misc()
1551 info->rx_rcc_underrun = true; in mgsl_isr_misc()
1604 __FILE__,__LINE__,info->device_name,status); in mgsl_isr_receive_dma()
1606 info->pending_bh |= BH_RECEIVE; in mgsl_isr_receive_dma()
1609 info->rx_overflow = true; in mgsl_isr_receive_dma()
1610 info->icount.buf_overrun++; in mgsl_isr_receive_dma()
1649 __FILE__,__LINE__,info->device_name,status); in mgsl_isr_transmit_dma()
1652 --info->tx_dma_buffers_used; in mgsl_isr_transmit_dma()
1658 /* if call returns non-zero value, we have in mgsl_isr_transmit_dma()
1661 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_dma()
1686 __FILE__, __LINE__, info->irq_level); in mgsl_interrupt()
1688 spin_lock(&info->irq_spinlock); in mgsl_interrupt()
1697 __FILE__,__LINE__,info->device_name,UscVector,DmaVector); in mgsl_interrupt()
1710 if ( info->isr_overflow ) { in mgsl_interrupt()
1712 __FILE__, __LINE__, info->device_name, info->irq_level); in mgsl_interrupt()
1723 if ( info->pending_bh && !info->bh_running && !info->bh_requested ) { in mgsl_interrupt()
1726 __FILE__,__LINE__,info->device_name); in mgsl_interrupt()
1727 schedule_work(&info->task); in mgsl_interrupt()
1728 info->bh_requested = true; in mgsl_interrupt()
1731 spin_unlock(&info->irq_spinlock); in mgsl_interrupt()
1735 __FILE__, __LINE__, info->irq_level); in mgsl_interrupt()
1752 printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name); in startup()
1754 if (tty_port_initialized(&info->port)) in startup()
1757 if (!info->xmit_buf) { in startup()
1759 info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL); in startup()
1760 if (!info->xmit_buf) { in startup()
1762 __FILE__,__LINE__,info->device_name); in startup()
1763 return -ENOMEM; in startup()
1767 info->pending_bh = 0; in startup()
1769 memset(&info->icount, 0, sizeof(info->icount)); in startup()
1771 timer_setup(&info->tx_timer, mgsl_tx_timeout, 0); in startup()
1781 if (capable(CAP_SYS_ADMIN) && info->port.tty) in startup()
1782 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
1790 if (info->port.tty) in startup()
1791 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
1793 tty_port_set_initialized(&info->port, 1); in startup()
1809 if (!tty_port_initialized(&info->port)) in shutdown()
1814 __FILE__,__LINE__, info->device_name ); in shutdown()
1818 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
1819 wake_up_interruptible(&info->event_wait_q); in shutdown()
1821 del_timer_sync(&info->tx_timer); in shutdown()
1823 if (info->xmit_buf) { in shutdown()
1824 free_page((unsigned long) info->xmit_buf); in shutdown()
1825 info->xmit_buf = NULL; in shutdown()
1828 spin_lock_irqsave(&info->irq_spinlock,flags); in shutdown()
1846 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
1847 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
1851 spin_unlock_irqrestore(&info->irq_spinlock,flags); in shutdown()
1855 if (info->port.tty) in shutdown()
1856 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
1858 tty_port_set_initialized(&info->port, 0); in shutdown()
1865 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_program_hw()
1869 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_program_hw()
1871 if (info->params.mode == MGSL_MODE_HDLC || in mgsl_program_hw()
1872 info->params.mode == MGSL_MODE_RAW || in mgsl_program_hw()
1873 info->netcount) in mgsl_program_hw()
1880 info->dcd_chkcount = 0; in mgsl_program_hw()
1881 info->cts_chkcount = 0; in mgsl_program_hw()
1882 info->ri_chkcount = 0; in mgsl_program_hw()
1883 info->dsr_chkcount = 0; in mgsl_program_hw()
1889 if (info->netcount || info->port.tty->termios.c_cflag & CREAD) in mgsl_program_hw()
1892 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_program_hw()
1902 if (!info->port.tty) in mgsl_change_params()
1907 __FILE__,__LINE__, info->device_name ); in mgsl_change_params()
1909 cflag = info->port.tty->termios.c_cflag; in mgsl_change_params()
1914 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in mgsl_change_params()
1916 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in mgsl_change_params()
1921 case CS5: info->params.data_bits = 5; break; in mgsl_change_params()
1922 case CS6: info->params.data_bits = 6; break; in mgsl_change_params()
1923 case CS7: info->params.data_bits = 7; break; in mgsl_change_params()
1924 case CS8: info->params.data_bits = 8; break; in mgsl_change_params()
1926 default: info->params.data_bits = 7; break; in mgsl_change_params()
1930 info->params.stop_bits = 2; in mgsl_change_params()
1932 info->params.stop_bits = 1; in mgsl_change_params()
1934 info->params.parity = ASYNC_PARITY_NONE; in mgsl_change_params()
1937 info->params.parity = ASYNC_PARITY_ODD; in mgsl_change_params()
1939 info->params.parity = ASYNC_PARITY_EVEN; in mgsl_change_params()
1942 info->params.parity = ASYNC_PARITY_SPACE; in mgsl_change_params()
1949 bits_per_char = info->params.data_bits + in mgsl_change_params()
1950 info->params.stop_bits + 1; in mgsl_change_params()
1953 * allow tty settings to override, otherwise keep the in mgsl_change_params()
1956 if (info->params.data_rate <= 460800) in mgsl_change_params()
1957 info->params.data_rate = tty_get_baud_rate(info->port.tty); in mgsl_change_params()
1959 if ( info->params.data_rate ) { in mgsl_change_params()
1960 info->timeout = (32*HZ*bits_per_char) / in mgsl_change_params()
1961 info->params.data_rate; in mgsl_change_params()
1963 info->timeout += HZ/50; /* Add .02 seconds of slop */ in mgsl_change_params()
1965 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in mgsl_change_params()
1966 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in mgsl_change_params()
1970 info->read_status_mask = RXSTATUS_OVERRUN; in mgsl_change_params()
1971 if (I_INPCK(info->port.tty)) in mgsl_change_params()
1972 info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; in mgsl_change_params()
1973 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in mgsl_change_params()
1974 info->read_status_mask |= RXSTATUS_BREAK_RECEIVED; in mgsl_change_params()
1976 if (I_IGNPAR(info->port.tty)) in mgsl_change_params()
1977 info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; in mgsl_change_params()
1978 if (I_IGNBRK(info->port.tty)) { in mgsl_change_params()
1979 info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED; in mgsl_change_params()
1983 if (I_IGNPAR(info->port.tty)) in mgsl_change_params()
1984 info->ignore_status_mask |= RXSTATUS_OVERRUN; in mgsl_change_params()
2002 struct mgsl_struct *info = tty->driver_data; in mgsl_put_char()
2008 __FILE__, __LINE__, ch, info->device_name); in mgsl_put_char()
2011 if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char")) in mgsl_put_char()
2014 if (!info->xmit_buf) in mgsl_put_char()
2017 spin_lock_irqsave(&info->irq_spinlock, flags); in mgsl_put_char()
2019 if ((info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active) { in mgsl_put_char()
2020 if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) { in mgsl_put_char()
2021 info->xmit_buf[info->xmit_head++] = ch; in mgsl_put_char()
2022 info->xmit_head &= SERIAL_XMIT_SIZE-1; in mgsl_put_char()
2023 info->xmit_cnt++; in mgsl_put_char()
2027 spin_unlock_irqrestore(&info->irq_spinlock, flags); in mgsl_put_char()
2042 struct mgsl_struct *info = tty->driver_data; in mgsl_flush_chars()
2047 __FILE__,__LINE__,info->device_name,info->xmit_cnt); in mgsl_flush_chars()
2049 if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_chars")) in mgsl_flush_chars()
2052 if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || in mgsl_flush_chars()
2053 !info->xmit_buf) in mgsl_flush_chars()
2058 __FILE__,__LINE__,info->device_name ); in mgsl_flush_chars()
2060 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_flush_chars()
2062 if (!info->tx_active) { in mgsl_flush_chars()
2063 if ( (info->params.mode == MGSL_MODE_HDLC || in mgsl_flush_chars()
2064 info->params.mode == MGSL_MODE_RAW) && info->xmit_cnt ) { in mgsl_flush_chars()
2069 info->xmit_buf,info->xmit_cnt); in mgsl_flush_chars()
2074 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_flush_chars()
2094 struct mgsl_struct *info = tty->driver_data; in mgsl_write()
2099 __FILE__,__LINE__,info->device_name,count); in mgsl_write()
2101 if (mgsl_paranoia_check(info, tty->name, "mgsl_write")) in mgsl_write()
2104 if (!info->xmit_buf) in mgsl_write()
2107 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_write()
2108 info->params.mode == MGSL_MODE_RAW ) { in mgsl_write()
2110 if (info->tx_active) { in mgsl_write()
2112 if ( info->params.mode == MGSL_MODE_HDLC ) { in mgsl_write()
2116 /* transmitter is actively sending data - in mgsl_write()
2121 if (info->tx_holding_count >= info->num_tx_holding_buffers ) { in mgsl_write()
2134 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2136 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2144 if ( (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) && in mgsl_write()
2151 if ( info->xmit_cnt ) { in mgsl_write()
2159 info->xmit_buf,info->xmit_cnt); in mgsl_write()
2162 __FILE__,__LINE__,info->device_name); in mgsl_write()
2166 __FILE__,__LINE__,info->device_name); in mgsl_write()
2168 info->xmit_cnt = count; in mgsl_write()
2173 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2175 min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1, in mgsl_write()
2176 SERIAL_XMIT_SIZE - info->xmit_head)); in mgsl_write()
2178 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2181 memcpy(info->xmit_buf + info->xmit_head, buf, c); in mgsl_write()
2182 info->xmit_head = ((info->xmit_head + c) & in mgsl_write()
2183 (SERIAL_XMIT_SIZE-1)); in mgsl_write()
2184 info->xmit_cnt += c; in mgsl_write()
2185 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2187 count -= c; in mgsl_write()
2192 if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) { in mgsl_write()
2193 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2194 if (!info->tx_active) in mgsl_write()
2196 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2201 __FILE__,__LINE__,info->device_name,ret); in mgsl_write()
2216 struct mgsl_struct *info = tty->driver_data; in mgsl_write_room()
2219 if (mgsl_paranoia_check(info, tty->name, "mgsl_write_room")) in mgsl_write_room()
2221 ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1; in mgsl_write_room()
2227 __FILE__,__LINE__, info->device_name,ret ); in mgsl_write_room()
2229 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_write_room()
2230 info->params.mode == MGSL_MODE_RAW ) { in mgsl_write_room()
2232 if ( info->tx_active ) in mgsl_write_room()
2251 struct mgsl_struct *info = tty->driver_data; in mgsl_chars_in_buffer()
2255 __FILE__,__LINE__, info->device_name ); in mgsl_chars_in_buffer()
2257 if (mgsl_paranoia_check(info, tty->name, "mgsl_chars_in_buffer")) in mgsl_chars_in_buffer()
2262 __FILE__,__LINE__, info->device_name,info->xmit_cnt ); in mgsl_chars_in_buffer()
2264 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_chars_in_buffer()
2265 info->params.mode == MGSL_MODE_RAW ) { in mgsl_chars_in_buffer()
2267 if ( info->tx_active ) in mgsl_chars_in_buffer()
2268 return info->max_frame_size; in mgsl_chars_in_buffer()
2273 return info->xmit_cnt; in mgsl_chars_in_buffer()
2285 struct mgsl_struct *info = tty->driver_data; in mgsl_flush_buffer()
2290 __FILE__,__LINE__, info->device_name ); in mgsl_flush_buffer()
2292 if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_buffer")) in mgsl_flush_buffer()
2295 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_flush_buffer()
2296 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_flush_buffer()
2297 del_timer(&info->tx_timer); in mgsl_flush_buffer()
2298 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_flush_buffer()
2305 * Send a high-priority XON/XOFF character
2313 struct mgsl_struct *info = tty->driver_data; in mgsl_send_xchar()
2318 __FILE__,__LINE__, info->device_name, ch ); in mgsl_send_xchar()
2320 if (mgsl_paranoia_check(info, tty->name, "mgsl_send_xchar")) in mgsl_send_xchar()
2323 info->x_char = ch; in mgsl_send_xchar()
2326 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_send_xchar()
2327 if (!info->tx_enabled) in mgsl_send_xchar()
2329 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_send_xchar()
2342 struct mgsl_struct *info = tty->driver_data; in mgsl_throttle()
2347 __FILE__,__LINE__, info->device_name ); in mgsl_throttle()
2349 if (mgsl_paranoia_check(info, tty->name, "mgsl_throttle")) in mgsl_throttle()
2356 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_throttle()
2357 info->serial_signals &= ~SerialSignal_RTS; in mgsl_throttle()
2359 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_throttle()
2372 struct mgsl_struct *info = tty->driver_data; in mgsl_unthrottle()
2377 __FILE__,__LINE__, info->device_name ); in mgsl_unthrottle()
2379 if (mgsl_paranoia_check(info, tty->name, "mgsl_unthrottle")) in mgsl_unthrottle()
2383 if (info->x_char) in mgsl_unthrottle()
2384 info->x_char = 0; in mgsl_unthrottle()
2390 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_unthrottle()
2391 info->serial_signals |= SerialSignal_RTS; in mgsl_unthrottle()
2393 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_unthrottle()
2413 __FILE__,__LINE__, info->device_name); in mgsl_get_stats()
2416 memset(&info->icount, 0, sizeof(info->icount)); in mgsl_get_stats()
2418 mutex_lock(&info->port.mutex); in mgsl_get_stats()
2419 COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount)); in mgsl_get_stats()
2420 mutex_unlock(&info->port.mutex); in mgsl_get_stats()
2422 return -EFAULT; in mgsl_get_stats()
2443 __FILE__,__LINE__, info->device_name); in mgsl_get_params()
2445 mutex_lock(&info->port.mutex); in mgsl_get_params()
2446 COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS)); in mgsl_get_params()
2447 mutex_unlock(&info->port.mutex); in mgsl_get_params()
2451 __FILE__,__LINE__,info->device_name); in mgsl_get_params()
2452 return -EFAULT; in mgsl_get_params()
2478 info->device_name ); in mgsl_set_params()
2483 __FILE__,__LINE__,info->device_name); in mgsl_set_params()
2484 return -EFAULT; in mgsl_set_params()
2487 mutex_lock(&info->port.mutex); in mgsl_set_params()
2488 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_params()
2489 memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS)); in mgsl_set_params()
2490 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_params()
2493 mutex_unlock(&info->port.mutex); in mgsl_set_params()
2514 __FILE__,__LINE__, info->device_name, info->idle_mode); in mgsl_get_txidle()
2516 COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int)); in mgsl_get_txidle()
2520 __FILE__,__LINE__,info->device_name); in mgsl_get_txidle()
2521 return -EFAULT; in mgsl_get_txidle()
2541 info->device_name, idle_mode ); in mgsl_set_txidle()
2543 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_txidle()
2544 info->idle_mode = idle_mode; in mgsl_set_txidle()
2546 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_txidle()
2568 info->device_name, enable); in mgsl_txenable()
2570 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_txenable()
2572 if ( !info->tx_enabled ) { in mgsl_txenable()
2575 /*-------------------------------------------------- in mgsl_txenable()
2581 *--------------------------------------------------*/ in mgsl_txenable()
2582 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_txenable()
2586 if ( info->tx_enabled ) in mgsl_txenable()
2589 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_txenable()
2605 info->device_name); in mgsl_txabort()
2607 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_txabort()
2608 if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC ) in mgsl_txabort()
2610 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_txabort()
2615 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_txabort()
2632 info->device_name, enable); in mgsl_rxenable()
2634 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_rxenable()
2636 if ( !info->rx_enabled ) in mgsl_rxenable()
2639 if ( info->rx_enabled ) in mgsl_rxenable()
2642 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_rxenable()
2668 return -EFAULT; in mgsl_wait_event()
2673 info->device_name, mask); in mgsl_wait_event()
2675 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2679 s = info->serial_signals; in mgsl_wait_event()
2686 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2691 cprev = info->icount; in mgsl_wait_event()
2692 oldsigs = info->input_signal_events; in mgsl_wait_event()
2705 add_wait_queue(&info->event_wait_q, &wait); in mgsl_wait_event()
2707 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2713 rc = -ERESTARTSYS; in mgsl_wait_event()
2718 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2719 cnow = info->icount; in mgsl_wait_event()
2720 newsigs = info->input_signal_events; in mgsl_wait_event()
2722 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2735 rc = -EIO; in mgsl_wait_event()
2757 remove_wait_queue(&info->event_wait_q, &wait); in mgsl_wait_event()
2761 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2762 if (!waitqueue_active(&info->event_wait_q)) { in mgsl_wait_event()
2767 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2785 spin_lock_irqsave(&info->irq_spinlock,flags); in modem_input_wait()
2786 cprev = info->icount; in modem_input_wait()
2787 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
2789 spin_unlock_irqrestore(&info->irq_spinlock,flags); in modem_input_wait()
2794 rc = -ERESTARTSYS; in modem_input_wait()
2799 spin_lock_irqsave(&info->irq_spinlock,flags); in modem_input_wait()
2800 cnow = info->icount; in modem_input_wait()
2802 spin_unlock_irqrestore(&info->irq_spinlock,flags); in modem_input_wait()
2806 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) { in modem_input_wait()
2807 rc = -EIO; in modem_input_wait()
2814 (arg & TIOCM_CD && cnow.dcd != cprev.dcd) || in modem_input_wait()
2822 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
2831 struct mgsl_struct *info = tty->driver_data; in tiocmget()
2835 spin_lock_irqsave(&info->irq_spinlock,flags); in tiocmget()
2837 spin_unlock_irqrestore(&info->irq_spinlock,flags); in tiocmget()
2839 result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
2840 ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
2841 ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
2842 ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
2843 ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
2844 ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
2848 __FILE__,__LINE__, info->device_name, result ); in tiocmget()
2857 struct mgsl_struct *info = tty->driver_data; in tiocmset()
2862 __FILE__,__LINE__,info->device_name, set, clear); in tiocmset()
2865 info->serial_signals |= SerialSignal_RTS; in tiocmset()
2867 info->serial_signals |= SerialSignal_DTR; in tiocmset()
2869 info->serial_signals &= ~SerialSignal_RTS; in tiocmset()
2871 info->serial_signals &= ~SerialSignal_DTR; in tiocmset()
2873 spin_lock_irqsave(&info->irq_spinlock,flags); in tiocmset()
2875 spin_unlock_irqrestore(&info->irq_spinlock,flags); in tiocmset()
2883 * break_state -1=set break condition, 0=clear
2888 struct mgsl_struct * info = tty->driver_data; in mgsl_break()
2893 __FILE__,__LINE__, info->device_name, break_state); in mgsl_break()
2895 if (mgsl_paranoia_check(info, tty->name, "mgsl_break")) in mgsl_break()
2896 return -EINVAL; in mgsl_break()
2898 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_break()
2899 if (break_state == -1) in mgsl_break()
2903 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_break()
2909 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
2911 * NB: both 1->0 and 0->1 transitions are counted except for
2912 * RI where only 0->1 is counted.
2918 struct mgsl_struct * info = tty->driver_data; in msgl_get_icount()
2922 spin_lock_irqsave(&info->irq_spinlock,flags); in msgl_get_icount()
2923 cnow = info->icount; in msgl_get_icount()
2924 spin_unlock_irqrestore(&info->irq_spinlock,flags); in msgl_get_icount()
2926 icount->cts = cnow.cts; in msgl_get_icount()
2927 icount->dsr = cnow.dsr; in msgl_get_icount()
2928 icount->rng = cnow.rng; in msgl_get_icount()
2929 icount->dcd = cnow.dcd; in msgl_get_icount()
2930 icount->rx = cnow.rx; in msgl_get_icount()
2931 icount->tx = cnow.tx; in msgl_get_icount()
2932 icount->frame = cnow.frame; in msgl_get_icount()
2933 icount->overrun = cnow.overrun; in msgl_get_icount()
2934 icount->parity = cnow.parity; in msgl_get_icount()
2935 icount->brk = cnow.brk; in msgl_get_icount()
2936 icount->buf_overrun = cnow.buf_overrun; in msgl_get_icount()
2953 struct mgsl_struct * info = tty->driver_data; in mgsl_ioctl()
2957 info->device_name, cmd ); in mgsl_ioctl()
2959 if (mgsl_paranoia_check(info, tty->name, "mgsl_ioctl")) in mgsl_ioctl()
2960 return -ENODEV; in mgsl_ioctl()
2965 return -EIO; in mgsl_ioctl()
2996 /* Wait for modem input (DCD,RI,DSR,CTS) change in mgsl_ioctl_common()
3003 return -ENOIOCTLCMD; in mgsl_ioctl_common()
3021 struct mgsl_struct *info = tty->driver_data; in mgsl_set_termios()
3026 tty->driver->name ); in mgsl_set_termios()
3031 if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { in mgsl_set_termios()
3032 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in mgsl_set_termios()
3033 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_termios()
3035 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_termios()
3039 if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) { in mgsl_set_termios()
3040 info->serial_signals |= SerialSignal_DTR; in mgsl_set_termios()
3042 info->serial_signals |= SerialSignal_RTS; in mgsl_set_termios()
3043 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_termios()
3045 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_termios()
3049 if (old_termios->c_cflag & CRTSCTS && !C_CRTSCTS(tty)) { in mgsl_set_termios()
3050 tty->hw_stopped = 0; in mgsl_set_termios()
3070 struct mgsl_struct * info = tty->driver_data; in mgsl_close()
3072 if (mgsl_paranoia_check(info, tty->name, "mgsl_close")) in mgsl_close()
3077 __FILE__,__LINE__, info->device_name, info->port.count); in mgsl_close()
3079 if (tty_port_close_start(&info->port, tty, filp) == 0) in mgsl_close()
3082 mutex_lock(&info->port.mutex); in mgsl_close()
3083 if (tty_port_initialized(&info->port)) in mgsl_close()
3084 mgsl_wait_until_sent(tty, info->timeout); in mgsl_close()
3088 mutex_unlock(&info->port.mutex); in mgsl_close()
3090 tty_port_close_end(&info->port, tty); in mgsl_close()
3091 info->port.tty = NULL; in mgsl_close()
3095 tty->driver->name, info->port.count); in mgsl_close()
3112 struct mgsl_struct * info = tty->driver_data; in mgsl_wait_until_sent()
3120 __FILE__,__LINE__, info->device_name ); in mgsl_wait_until_sent()
3122 if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent")) in mgsl_wait_until_sent()
3125 if (!tty_port_initialized(&info->port)) in mgsl_wait_until_sent()
3133 * Note: use tight timings here to satisfy the NIST-PCTS. in mgsl_wait_until_sent()
3136 if ( info->params.data_rate ) { in mgsl_wait_until_sent()
3137 char_time = info->timeout/(32 * 5); in mgsl_wait_until_sent()
3146 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_wait_until_sent()
3147 info->params.mode == MGSL_MODE_RAW ) { in mgsl_wait_until_sent()
3148 while (info->tx_active) { in mgsl_wait_until_sent()
3157 info->tx_enabled) { in mgsl_wait_until_sent()
3169 __FILE__,__LINE__, info->device_name ); in mgsl_wait_until_sent()
3183 struct mgsl_struct * info = tty->driver_data; in mgsl_hangup()
3187 __FILE__,__LINE__, info->device_name ); in mgsl_hangup()
3189 if (mgsl_paranoia_check(info, tty->name, "mgsl_hangup")) in mgsl_hangup()
3195 info->port.count = 0; in mgsl_hangup()
3196 tty_port_set_active(&info->port, 0); in mgsl_hangup()
3197 info->port.tty = NULL; in mgsl_hangup()
3199 wake_up_interruptible(&info->port.open_wait); in mgsl_hangup()
3214 spin_lock_irqsave(&info->irq_spinlock, flags); in carrier_raised()
3216 spin_unlock_irqrestore(&info->irq_spinlock, flags); in carrier_raised()
3217 return (info->serial_signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3225 spin_lock_irqsave(&info->irq_spinlock,flags); in dtr_rts()
3227 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3229 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3231 spin_unlock_irqrestore(&info->irq_spinlock,flags); in dtr_rts()
3255 int dcd; in block_til_ready() local
3256 struct tty_port *port = &info->port; in block_til_ready()
3260 __FILE__,__LINE__, tty->driver->name ); in block_til_ready()
3262 if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { in block_til_ready()
3273 * this loop, port->count is dropped by one, so that in block_til_ready()
3279 add_wait_queue(&port->open_wait, &wait); in block_til_ready()
3283 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3285 spin_lock_irqsave(&info->irq_spinlock, flags); in block_til_ready()
3286 port->count--; in block_til_ready()
3287 spin_unlock_irqrestore(&info->irq_spinlock, flags); in block_til_ready()
3288 port->blocked_open++; in block_til_ready()
3297 retval = (port->flags & ASYNC_HUP_NOTIFY) ? in block_til_ready()
3298 -EAGAIN : -ERESTARTSYS; in block_til_ready()
3302 dcd = tty_port_carrier_raised(&info->port); in block_til_ready()
3303 if (do_clocal || dcd) in block_til_ready()
3307 retval = -ERESTARTSYS; in block_til_ready()
3313 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3321 remove_wait_queue(&port->open_wait, &wait); in block_til_ready()
3325 port->count++; in block_til_ready()
3326 port->blocked_open--; in block_til_ready()
3330 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3342 int line = tty->index; in mgsl_install()
3348 return -ENODEV; in mgsl_install()
3353 while (info && info->line != line) in mgsl_install()
3354 info = info->next_device; in mgsl_install()
3355 if (mgsl_paranoia_check(info, tty->name, "mgsl_open")) in mgsl_install()
3356 return -ENODEV; in mgsl_install()
3357 tty->driver_data = info; in mgsl_install()
3359 return tty_port_install(&info->port, driver, tty); in mgsl_install()
3365 * Perform serial-specific initialization for the tty structure.
3374 struct mgsl_struct *info = tty->driver_data; in mgsl_open()
3378 info->port.tty = tty; in mgsl_open()
3382 __FILE__,__LINE__,tty->driver->name, info->port.count); in mgsl_open()
3384 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in mgsl_open()
3386 spin_lock_irqsave(&info->netlock, flags); in mgsl_open()
3387 if (info->netcount) { in mgsl_open()
3388 retval = -EBUSY; in mgsl_open()
3389 spin_unlock_irqrestore(&info->netlock, flags); in mgsl_open()
3392 info->port.count++; in mgsl_open()
3393 spin_unlock_irqrestore(&info->netlock, flags); in mgsl_open()
3395 if (info->port.count == 1) { in mgsl_open()
3406 __FILE__,__LINE__, info->device_name, retval); in mgsl_open()
3412 __FILE__,__LINE__, info->device_name); in mgsl_open()
3417 if (tty->count == 1) in mgsl_open()
3418 info->port.tty = NULL; /* tty layer will release tty struct */ in mgsl_open()
3419 if(info->port.count) in mgsl_open()
3420 info->port.count--; in mgsl_open()
3436 if (info->bus_type == MGSL_BUS_TYPE_PCI) { in line_info()
3438 info->device_name, info->io_base, info->irq_level, in line_info()
3439 info->phys_memory_base, info->phys_lcr_base); in line_info()
3442 info->device_name, info->io_base, in line_info()
3443 info->irq_level, info->dma_level); in line_info()
3447 spin_lock_irqsave(&info->irq_spinlock,flags); in line_info()
3449 spin_unlock_irqrestore(&info->irq_spinlock,flags); in line_info()
3453 if (info->serial_signals & SerialSignal_RTS) in line_info()
3455 if (info->serial_signals & SerialSignal_CTS) in line_info()
3457 if (info->serial_signals & SerialSignal_DTR) in line_info()
3459 if (info->serial_signals & SerialSignal_DSR) in line_info()
3461 if (info->serial_signals & SerialSignal_DCD) in line_info()
3463 if (info->serial_signals & SerialSignal_RI) in line_info()
3466 if (info->params.mode == MGSL_MODE_HDLC || in line_info()
3467 info->params.mode == MGSL_MODE_RAW ) { in line_info()
3469 info->icount.txok, info->icount.rxok); in line_info()
3470 if (info->icount.txunder) in line_info()
3471 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
3472 if (info->icount.txabort) in line_info()
3473 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
3474 if (info->icount.rxshort) in line_info()
3475 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
3476 if (info->icount.rxlong) in line_info()
3477 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
3478 if (info->icount.rxover) in line_info()
3479 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
3480 if (info->icount.rxcrc) in line_info()
3481 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
3484 info->icount.tx, info->icount.rx); in line_info()
3485 if (info->icount.frame) in line_info()
3486 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
3487 if (info->icount.parity) in line_info()
3488 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
3489 if (info->icount.brk) in line_info()
3490 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
3491 if (info->icount.overrun) in line_info()
3492 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
3499 info->tx_active,info->bh_requested,info->bh_running, in line_info()
3500 info->pending_bh); in line_info()
3502 spin_lock_irqsave(&info->irq_spinlock,flags); in line_info()
3514 u16 Ccar = inw( info->io_base + CCAR ); in line_info()
3519 spin_unlock_irqrestore(&info->irq_spinlock,flags); in line_info()
3532 info = info->next_device; in mgsl_proc_show()
3549 info->last_mem_alloc = 0; in mgsl_allocate_dma_buffers()
3556 BuffersPerFrame = (unsigned short)(info->max_frame_size/DMABUFFERSIZE); in mgsl_allocate_dma_buffers()
3557 if ( info->max_frame_size % DMABUFFERSIZE ) in mgsl_allocate_dma_buffers()
3560 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in mgsl_allocate_dma_buffers()
3580 * Of the remaining pages (62-N), determine how many can in mgsl_allocate_dma_buffers()
3583 info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame; in mgsl_allocate_dma_buffers()
3584 info->rx_buffer_count = 62 - info->tx_buffer_count; in mgsl_allocate_dma_buffers()
3596 info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame; in mgsl_allocate_dma_buffers()
3597 info->rx_buffer_count = (BuffersPerFrame * MAXRXFRAMES) + 6; in mgsl_allocate_dma_buffers()
3604 if ( (info->tx_buffer_count + info->rx_buffer_count) > 62 ) in mgsl_allocate_dma_buffers()
3605 info->rx_buffer_count = 62 - info->tx_buffer_count; in mgsl_allocate_dma_buffers()
3611 __FILE__,__LINE__, info->tx_buffer_count,info->rx_buffer_count); in mgsl_allocate_dma_buffers()
3614 mgsl_alloc_frame_memory(info, info->rx_buffer_list, info->rx_buffer_count) < 0 || in mgsl_allocate_dma_buffers()
3615 mgsl_alloc_frame_memory(info, info->tx_buffer_list, info->tx_buffer_count) < 0 || in mgsl_allocate_dma_buffers()
3619 return -ENOMEM; in mgsl_allocate_dma_buffers()
3656 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in mgsl_alloc_buffer_list_memory()
3658 info->buffer_list = info->memory_base + info->last_mem_alloc; in mgsl_alloc_buffer_list_memory()
3659 info->buffer_list_phys = info->last_mem_alloc; in mgsl_alloc_buffer_list_memory()
3660 info->last_mem_alloc += BUFFERLISTSIZE; in mgsl_alloc_buffer_list_memory()
3668 …info->buffer_list = dma_alloc_coherent(NULL, BUFFERLISTSIZE, &info->buffer_list_dma_addr, GFP_KERN… in mgsl_alloc_buffer_list_memory()
3669 if (info->buffer_list == NULL) in mgsl_alloc_buffer_list_memory()
3670 return -ENOMEM; in mgsl_alloc_buffer_list_memory()
3671 info->buffer_list_phys = (u32)(info->buffer_list_dma_addr); in mgsl_alloc_buffer_list_memory()
3676 memset( info->buffer_list, 0, BUFFERLISTSIZE ); in mgsl_alloc_buffer_list_memory()
3681 info->rx_buffer_list = (DMABUFFERENTRY *)info->buffer_list; in mgsl_alloc_buffer_list_memory()
3682 info->tx_buffer_list = (DMABUFFERENTRY *)info->buffer_list; in mgsl_alloc_buffer_list_memory()
3683 info->tx_buffer_list += info->rx_buffer_count; in mgsl_alloc_buffer_list_memory()
3694 for ( i = 0; i < info->rx_buffer_count; i++ ) { in mgsl_alloc_buffer_list_memory()
3696 info->rx_buffer_list[i].phys_entry = in mgsl_alloc_buffer_list_memory()
3697 info->buffer_list_phys + (i * sizeof(DMABUFFERENTRY)); in mgsl_alloc_buffer_list_memory()
3702 info->rx_buffer_list[i].link = info->buffer_list_phys; in mgsl_alloc_buffer_list_memory()
3704 if ( i < info->rx_buffer_count - 1 ) in mgsl_alloc_buffer_list_memory()
3705 info->rx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3708 for ( i = 0; i < info->tx_buffer_count; i++ ) { in mgsl_alloc_buffer_list_memory()
3710 info->tx_buffer_list[i].phys_entry = info->buffer_list_phys + in mgsl_alloc_buffer_list_memory()
3711 ((info->rx_buffer_count + i) * sizeof(DMABUFFERENTRY)); in mgsl_alloc_buffer_list_memory()
3716 info->tx_buffer_list[i].link = info->buffer_list_phys + in mgsl_alloc_buffer_list_memory()
3717 info->rx_buffer_count * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3719 if ( i < info->tx_buffer_count - 1 ) in mgsl_alloc_buffer_list_memory()
3720 info->tx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3738 if (info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI) in mgsl_free_buffer_list_memory()
3739 dma_free_coherent(NULL, BUFFERLISTSIZE, info->buffer_list, info->buffer_list_dma_addr); in mgsl_free_buffer_list_memory()
3741 info->buffer_list = NULL; in mgsl_free_buffer_list_memory()
3742 info->rx_buffer_list = NULL; in mgsl_free_buffer_list_memory()
3743 info->tx_buffer_list = NULL; in mgsl_free_buffer_list_memory()
3761 * Return Value: 0 if success, otherwise -ENOMEM
3771 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in mgsl_alloc_frame_memory()
3773 BufferList[i].virt_addr = info->memory_base + info->last_mem_alloc; in mgsl_alloc_frame_memory()
3774 phys_addr = info->last_mem_alloc; in mgsl_alloc_frame_memory()
3775 info->last_mem_alloc += DMABUFFERSIZE; in mgsl_alloc_frame_memory()
3780 return -ENOMEM; in mgsl_alloc_frame_memory()
3811 if ( info->bus_type != MGSL_BUS_TYPE_PCI ) in mgsl_free_frame_memory()
3829 mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count ); in mgsl_free_dma_buffers()
3830 mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count ); in mgsl_free_dma_buffers()
3846 * Return Value: 0 if success, otherwise -ENOMEM
3850 info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA); in mgsl_alloc_intermediate_rxbuffer_memory()
3851 if ( info->intermediate_rxbuffer == NULL ) in mgsl_alloc_intermediate_rxbuffer_memory()
3852 return -ENOMEM; in mgsl_alloc_intermediate_rxbuffer_memory()
3854 info->flag_buf = kzalloc(info->max_frame_size, GFP_KERNEL); in mgsl_alloc_intermediate_rxbuffer_memory()
3855 if (!info->flag_buf) { in mgsl_alloc_intermediate_rxbuffer_memory()
3856 kfree(info->intermediate_rxbuffer); in mgsl_alloc_intermediate_rxbuffer_memory()
3857 info->intermediate_rxbuffer = NULL; in mgsl_alloc_intermediate_rxbuffer_memory()
3858 return -ENOMEM; in mgsl_alloc_intermediate_rxbuffer_memory()
3876 kfree(info->intermediate_rxbuffer); in mgsl_free_intermediate_rxbuffer_memory()
3877 info->intermediate_rxbuffer = NULL; in mgsl_free_intermediate_rxbuffer_memory()
3878 kfree(info->flag_buf); in mgsl_free_intermediate_rxbuffer_memory()
3879 info->flag_buf = NULL; in mgsl_free_intermediate_rxbuffer_memory()
3894 * Return Value: 0 if success, otherwise -ENOMEM
3902 info->device_name, __FILE__,__LINE__,info->num_tx_holding_buffers); in mgsl_alloc_intermediate_txbuffer_memory()
3904 memset(info->tx_holding_buffers,0,sizeof(info->tx_holding_buffers)); in mgsl_alloc_intermediate_txbuffer_memory()
3906 for ( i=0; i<info->num_tx_holding_buffers; ++i) { in mgsl_alloc_intermediate_txbuffer_memory()
3907 info->tx_holding_buffers[i].buffer = in mgsl_alloc_intermediate_txbuffer_memory()
3908 kmalloc(info->max_frame_size, GFP_KERNEL); in mgsl_alloc_intermediate_txbuffer_memory()
3909 if (info->tx_holding_buffers[i].buffer == NULL) { in mgsl_alloc_intermediate_txbuffer_memory()
3910 for (--i; i >= 0; i--) { in mgsl_alloc_intermediate_txbuffer_memory()
3911 kfree(info->tx_holding_buffers[i].buffer); in mgsl_alloc_intermediate_txbuffer_memory()
3912 info->tx_holding_buffers[i].buffer = NULL; in mgsl_alloc_intermediate_txbuffer_memory()
3914 return -ENOMEM; in mgsl_alloc_intermediate_txbuffer_memory()
3936 for ( i=0; i<info->num_tx_holding_buffers; ++i ) { in mgsl_free_intermediate_txbuffer_memory()
3937 kfree(info->tx_holding_buffers[i].buffer); in mgsl_free_intermediate_txbuffer_memory()
3938 info->tx_holding_buffers[i].buffer = NULL; in mgsl_free_intermediate_txbuffer_memory()
3941 info->get_tx_holding_index = 0; in mgsl_free_intermediate_txbuffer_memory()
3942 info->put_tx_holding_index = 0; in mgsl_free_intermediate_txbuffer_memory()
3943 info->tx_holding_count = 0; in mgsl_free_intermediate_txbuffer_memory()
3966 if ( info->tx_holding_count ) { in load_next_tx_holding_buffer()
3971 &info->tx_holding_buffers[info->get_tx_holding_index]; in load_next_tx_holding_buffer()
3973 int num_needed = ptx->buffer_size / DMABUFFERSIZE; in load_next_tx_holding_buffer()
3974 if ( ptx->buffer_size % DMABUFFERSIZE ) in load_next_tx_holding_buffer()
3978 info->xmit_cnt = ptx->buffer_size; in load_next_tx_holding_buffer()
3979 mgsl_load_tx_dma_buffer(info,ptx->buffer,ptx->buffer_size); in load_next_tx_holding_buffer()
3981 --info->tx_holding_count; in load_next_tx_holding_buffer()
3982 if ( ++info->get_tx_holding_index >= info->num_tx_holding_buffers) in load_next_tx_holding_buffer()
3983 info->get_tx_holding_index=0; in load_next_tx_holding_buffer()
3986 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000)); in load_next_tx_holding_buffer()
4012 if ( info->tx_holding_count >= info->num_tx_holding_buffers ) { in save_tx_buffer_request()
4016 ptx = &info->tx_holding_buffers[info->put_tx_holding_index]; in save_tx_buffer_request()
4017 ptx->buffer_size = BufferSize; in save_tx_buffer_request()
4018 memcpy( ptx->buffer, Buffer, BufferSize); in save_tx_buffer_request()
4020 ++info->tx_holding_count; in save_tx_buffer_request()
4021 if ( ++info->put_tx_holding_index >= info->num_tx_holding_buffers) in save_tx_buffer_request()
4022 info->put_tx_holding_index=0; in save_tx_buffer_request()
4029 if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) { in mgsl_claim_resources()
4031 __FILE__,__LINE__,info->device_name, info->io_base); in mgsl_claim_resources()
4032 return -ENODEV; in mgsl_claim_resources()
4034 info->io_addr_requested = true; in mgsl_claim_resources()
4036 if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags, in mgsl_claim_resources()
4037 info->device_name, info ) < 0 ) { in mgsl_claim_resources()
4039 __FILE__,__LINE__,info->device_name, info->irq_level ); in mgsl_claim_resources()
4042 info->irq_requested = true; in mgsl_claim_resources()
4044 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in mgsl_claim_resources()
4045 if (request_mem_region(info->phys_memory_base,0x40000,"synclink") == NULL) { in mgsl_claim_resources()
4047 __FILE__,__LINE__,info->device_name, info->phys_memory_base); in mgsl_claim_resources()
4050 info->shared_mem_requested = true; in mgsl_claim_resources()
4051 if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclink") == NULL) { in mgsl_claim_resources()
4053 __FILE__,__LINE__,info->device_name, info->phys_lcr_base + info->lcr_offset); in mgsl_claim_resources()
4056 info->lcr_mem_requested = true; in mgsl_claim_resources()
4058 info->memory_base = ioremap_nocache(info->phys_memory_base, in mgsl_claim_resources()
4060 if (!info->memory_base) { in mgsl_claim_resources()
4062 __FILE__,__LINE__,info->device_name, info->phys_memory_base ); in mgsl_claim_resources()
4068 __FILE__,__LINE__,info->device_name, info->phys_memory_base ); in mgsl_claim_resources()
4072 info->lcr_base = ioremap_nocache(info->phys_lcr_base, in mgsl_claim_resources()
4074 if (!info->lcr_base) { in mgsl_claim_resources()
4076 __FILE__,__LINE__,info->device_name, info->phys_lcr_base ); in mgsl_claim_resources()
4079 info->lcr_base += info->lcr_offset; in mgsl_claim_resources()
4084 if (request_dma(info->dma_level,info->device_name) < 0){ in mgsl_claim_resources()
4086 __FILE__,__LINE__,info->device_name, info->dma_level ); in mgsl_claim_resources()
4089 info->dma_requested = true; in mgsl_claim_resources()
4092 set_dma_mode(info->dma_level,DMA_MODE_CASCADE); in mgsl_claim_resources()
4093 enable_dma(info->dma_level); in mgsl_claim_resources()
4098 __FILE__,__LINE__,info->device_name, info->dma_level ); in mgsl_claim_resources()
4105 return -ENODEV; in mgsl_claim_resources()
4113 __FILE__,__LINE__,info->device_name ); in mgsl_release_resources()
4115 if ( info->irq_requested ) { in mgsl_release_resources()
4116 free_irq(info->irq_level, info); in mgsl_release_resources()
4117 info->irq_requested = false; in mgsl_release_resources()
4119 if ( info->dma_requested ) { in mgsl_release_resources()
4120 disable_dma(info->dma_level); in mgsl_release_resources()
4121 free_dma(info->dma_level); in mgsl_release_resources()
4122 info->dma_requested = false; in mgsl_release_resources()
4128 if ( info->io_addr_requested ) { in mgsl_release_resources()
4129 release_region(info->io_base,info->io_addr_size); in mgsl_release_resources()
4130 info->io_addr_requested = false; in mgsl_release_resources()
4132 if ( info->shared_mem_requested ) { in mgsl_release_resources()
4133 release_mem_region(info->phys_memory_base,0x40000); in mgsl_release_resources()
4134 info->shared_mem_requested = false; in mgsl_release_resources()
4136 if ( info->lcr_mem_requested ) { in mgsl_release_resources()
4137 release_mem_region(info->phys_lcr_base + info->lcr_offset,128); in mgsl_release_resources()
4138 info->lcr_mem_requested = false; in mgsl_release_resources()
4140 if (info->memory_base){ in mgsl_release_resources()
4141 iounmap(info->memory_base); in mgsl_release_resources()
4142 info->memory_base = NULL; in mgsl_release_resources()
4144 if (info->lcr_base){ in mgsl_release_resources()
4145 iounmap(info->lcr_base - info->lcr_offset); in mgsl_release_resources()
4146 info->lcr_base = NULL; in mgsl_release_resources()
4151 __FILE__,__LINE__,info->device_name ); in mgsl_release_resources()
4165 info->next_device = NULL; in mgsl_add_device()
4166 info->line = mgsl_device_count; in mgsl_add_device()
4167 sprintf(info->device_name,"ttySL%d",info->line); in mgsl_add_device()
4169 if (info->line < MAX_TOTAL_DEVICES) { in mgsl_add_device()
4170 if (maxframe[info->line]) in mgsl_add_device()
4171 info->max_frame_size = maxframe[info->line]; in mgsl_add_device()
4173 if (txdmabufs[info->line]) { in mgsl_add_device()
4174 info->num_tx_dma_buffers = txdmabufs[info->line]; in mgsl_add_device()
4175 if (info->num_tx_dma_buffers < 1) in mgsl_add_device()
4176 info->num_tx_dma_buffers = 1; in mgsl_add_device()
4179 if (txholdbufs[info->line]) { in mgsl_add_device()
4180 info->num_tx_holding_buffers = txholdbufs[info->line]; in mgsl_add_device()
4181 if (info->num_tx_holding_buffers < 1) in mgsl_add_device()
4182 info->num_tx_holding_buffers = 1; in mgsl_add_device()
4183 else if (info->num_tx_holding_buffers > MAX_TX_HOLDING_BUFFERS) in mgsl_add_device()
4184 info->num_tx_holding_buffers = MAX_TX_HOLDING_BUFFERS; in mgsl_add_device()
4194 while( current_dev->next_device ) in mgsl_add_device()
4195 current_dev = current_dev->next_device; in mgsl_add_device()
4196 current_dev->next_device = info; in mgsl_add_device()
4199 if ( info->max_frame_size < 4096 ) in mgsl_add_device()
4200 info->max_frame_size = 4096; in mgsl_add_device()
4201 else if ( info->max_frame_size > 65535 ) in mgsl_add_device()
4202 info->max_frame_size = 65535; in mgsl_add_device()
4204 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in mgsl_add_device()
4206 info->hw_version + 1, info->device_name, info->io_base, info->irq_level, in mgsl_add_device()
4207 info->phys_memory_base, info->phys_lcr_base, in mgsl_add_device()
4208 info->max_frame_size ); in mgsl_add_device()
4211 info->device_name, info->io_base, info->irq_level, info->dma_level, in mgsl_add_device()
4212 info->max_frame_size ); in mgsl_add_device()
4244 tty_port_init(&info->port); in mgsl_allocate_device()
4245 info->port.ops = &mgsl_port_ops; in mgsl_allocate_device()
4246 info->magic = MGSL_MAGIC; in mgsl_allocate_device()
4247 INIT_WORK(&info->task, mgsl_bh_handler); in mgsl_allocate_device()
4248 info->max_frame_size = 4096; in mgsl_allocate_device()
4249 info->port.close_delay = 5*HZ/10; in mgsl_allocate_device()
4250 info->port.closing_wait = 30*HZ; in mgsl_allocate_device()
4251 init_waitqueue_head(&info->status_event_wait_q); in mgsl_allocate_device()
4252 init_waitqueue_head(&info->event_wait_q); in mgsl_allocate_device()
4253 spin_lock_init(&info->irq_spinlock); in mgsl_allocate_device()
4254 spin_lock_init(&info->netlock); in mgsl_allocate_device()
4255 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in mgsl_allocate_device()
4256 info->idle_mode = HDLC_TXIDLE_FLAGS; in mgsl_allocate_device()
4257 info->num_tx_dma_buffers = 1; in mgsl_allocate_device()
4258 info->num_tx_holding_buffers = 0; in mgsl_allocate_device()
4300 return -ENOMEM; in mgsl_init_tty()
4302 serial_driver->driver_name = "synclink"; in mgsl_init_tty()
4303 serial_driver->name = "ttySL"; in mgsl_init_tty()
4304 serial_driver->major = ttymajor; in mgsl_init_tty()
4305 serial_driver->minor_start = 64; in mgsl_init_tty()
4306 serial_driver->type = TTY_DRIVER_TYPE_SERIAL; in mgsl_init_tty()
4307 serial_driver->subtype = SERIAL_TYPE_NORMAL; in mgsl_init_tty()
4308 serial_driver->init_termios = tty_std_termios; in mgsl_init_tty()
4309 serial_driver->init_termios.c_cflag = in mgsl_init_tty()
4311 serial_driver->init_termios.c_ispeed = 9600; in mgsl_init_tty()
4312 serial_driver->init_termios.c_ospeed = 9600; in mgsl_init_tty()
4313 serial_driver->flags = TTY_DRIVER_REAL_RAW; in mgsl_init_tty()
4325 serial_driver->major); in mgsl_init_tty()
4352 info->io_base = (unsigned int)io[i]; in mgsl_enum_isa_devices()
4353 info->irq_level = (unsigned int)irq[i]; in mgsl_enum_isa_devices()
4354 info->irq_level = irq_canonicalize(info->irq_level); in mgsl_enum_isa_devices()
4355 info->dma_level = (unsigned int)dma[i]; in mgsl_enum_isa_devices()
4356 info->bus_type = MGSL_BUS_TYPE_ISA; in mgsl_enum_isa_devices()
4357 info->io_addr_size = 16; in mgsl_enum_isa_devices()
4358 info->irq_flags = 0; in mgsl_enum_isa_devices()
4387 info = info->next_device; in synclink_cleanup()
4388 tty_port_destroy(&tmp->port); in synclink_cleanup()
4457 outw( Cmd + info->loopback_bits, info->io_base + CCAR ); in usc_RTCmd()
4460 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_RTCmd()
4461 inw( info->io_base + CCAR ); in usc_RTCmd()
4482 outw( Cmd + info->mbre_bit, info->io_base ); in usc_DmaCmd()
4485 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_DmaCmd()
4486 inw( info->io_base ); in usc_DmaCmd()
4493 * Write a 16-bit value to a USC DMA register
4499 * RegValue 16-bit value to write to register
4511 outw( RegAddr + info->mbre_bit, info->io_base ); in usc_OutDmaReg()
4512 outw( RegValue, info->io_base ); in usc_OutDmaReg()
4515 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_OutDmaReg()
4516 inw( info->io_base ); in usc_OutDmaReg()
4523 * Read a 16-bit value from a DMA register
4532 * The 16-bit value read from register
4540 outw( RegAddr + info->mbre_bit, info->io_base ); in usc_InDmaReg()
4541 return inw( info->io_base ); in usc_InDmaReg()
4549 * Write a 16-bit value to a USC serial channel register
4555 * RegValue 16-bit value to write to register
4564 outw( RegAddr + info->loopback_bits, info->io_base + CCAR ); in usc_OutReg()
4565 outw( RegValue, info->io_base + CCAR ); in usc_OutReg()
4568 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_OutReg()
4569 inw( info->io_base + CCAR ); in usc_OutReg()
4576 * Reads a 16-bit value from a USC serial channel register
4585 * 16-bit value read from register
4589 outw( RegAddr + info->loopback_bits, info->io_base + CCAR ); in usc_InReg()
4590 return inw( info->io_base + CCAR ); in usc_InReg()
4607 * determine if the IUSC on the adapter is pre-SL1660. If in usc_set_sdlc_mode()
4619 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in usc_set_sdlc_mode()
4635 /*-------------------------------------------------- in usc_set_sdlc_mode()
4638 *--------------------------------------------------*/ in usc_set_sdlc_mode()
4653 if (info->params.mode == MGSL_MODE_RAW) { in usc_set_sdlc_mode()
4656 usc_OutReg( info, IOCR, /* Set IOCR DCD is RxSync Detect Input */ in usc_set_sdlc_mode()
4664 * CMR <12> 0 Send 8-bit syncs, 1=send Syncs per TxLength in usc_set_sdlc_mode()
4667 * CMR <11-8) 0100 MonoSync in usc_set_sdlc_mode()
4677 if ( info->params.flags & HDLC_FLAG_UNDERRUN_ABORT15 ) in usc_set_sdlc_mode()
4679 else if ( info->params.flags & HDLC_FLAG_UNDERRUN_FLAG ) in usc_set_sdlc_mode()
4681 else if ( info->params.flags & HDLC_FLAG_UNDERRUN_CRC ) in usc_set_sdlc_mode()
4685 if ( info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE ) in usc_set_sdlc_mode()
4689 if ( info->params.mode == MGSL_MODE_HDLC && in usc_set_sdlc_mode()
4690 (info->params.flags & HDLC_FLAG_SHARE_ZERO) ) in usc_set_sdlc_mode()
4693 if ( info->params.addr_filter != 0xff ) in usc_set_sdlc_mode()
4696 usc_OutReg( info, RSR, info->params.addr_filter ); in usc_set_sdlc_mode()
4701 info->cmr_value = RegValue; in usc_set_sdlc_mode()
4720 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
4730 if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT ) in usc_set_sdlc_mode()
4732 else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT ) in usc_set_sdlc_mode()
4768 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_set_sdlc_mode()
4795 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
4805 if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT ) in usc_set_sdlc_mode()
4807 else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT ) in usc_set_sdlc_mode()
4832 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_set_sdlc_mode()
4857 info->tcsr_value = 0; in usc_set_sdlc_mode()
4860 info->tcsr_value |= TCSR_UNDERWAIT; in usc_set_sdlc_mode()
4862 usc_OutReg( info, TCSR, info->tcsr_value ); in usc_set_sdlc_mode()
4879 if ( info->params.flags & HDLC_FLAG_RXC_DPLL ) in usc_set_sdlc_mode()
4881 else if ( info->params.flags & HDLC_FLAG_RXC_BRG ) in usc_set_sdlc_mode()
4883 else if ( info->params.flags & HDLC_FLAG_RXC_TXCPIN) in usc_set_sdlc_mode()
4888 if ( info->params.flags & HDLC_FLAG_TXC_DPLL ) in usc_set_sdlc_mode()
4890 else if ( info->params.flags & HDLC_FLAG_TXC_BRG ) in usc_set_sdlc_mode()
4892 else if ( info->params.flags & HDLC_FLAG_TXC_RXCPIN) in usc_set_sdlc_mode()
4917 if ( info->params.flags & (HDLC_FLAG_RXC_DPLL | HDLC_FLAG_TXC_DPLL) ) { in usc_set_sdlc_mode()
4925 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_set_sdlc_mode()
4930 if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) { in usc_set_sdlc_mode()
4934 else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) { in usc_set_sdlc_mode()
4941 /* Tc = (Xtal/Speed) - 1 */ in usc_set_sdlc_mode()
4947 /*-------------------------------------------------- in usc_set_sdlc_mode()
4954 *--------------------------------------------------*/ in usc_set_sdlc_mode()
4955 if ( info->params.clock_speed ) in usc_set_sdlc_mode()
4957 Tc = (u16)((XtalSpeed/DpllDivisor)/info->params.clock_speed); in usc_set_sdlc_mode()
4958 if ( !((((XtalSpeed/DpllDivisor) % info->params.clock_speed) * 2) in usc_set_sdlc_mode()
4959 / info->params.clock_speed) ) in usc_set_sdlc_mode()
4960 Tc--; in usc_set_sdlc_mode()
4963 Tc = -1; in usc_set_sdlc_mode()
4966 /* Write 16-bit Time Constant for BRG1 */ in usc_set_sdlc_mode()
4971 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
5007 if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) { in usc_set_sdlc_mode()
5023 info->mbre_bit = 0; in usc_set_sdlc_mode()
5024 outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */ in usc_set_sdlc_mode()
5026 info->mbre_bit = BIT8; in usc_set_sdlc_mode()
5027 outw( BIT8, info->io_base ); /* set Master Bus Enable (DCAR) */ in usc_set_sdlc_mode()
5029 if (info->bus_type == MGSL_BUS_TYPE_ISA) { in usc_set_sdlc_mode()
5048 * <5> 0 7 CLK - Minimum Bus Re-request Interval in usc_set_sdlc_mode()
5057 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in usc_set_sdlc_mode()
5118 * <15..14> 10 Use 32-bit Tx Control Blocks (TCBs) in usc_set_sdlc_mode()
5123 * <7..6> 10 Use 32-bit Rx status Blocks (RSBs) in usc_set_sdlc_mode()
5132 switch ( info->params.preamble_length ) { in usc_set_sdlc_mode()
5138 switch ( info->params.preamble ) { in usc_set_sdlc_mode()
5155 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in usc_set_sdlc_mode()
5198 /* Write 16-bit Time Constant for BRG0 */ in usc_enable_loopback()
5200 if (info->params.clock_speed) { in usc_enable_loopback()
5201 if (info->bus_type == MGSL_BUS_TYPE_PCI) in usc_enable_loopback()
5202 usc_OutReg(info, TC0R, (u16)((11059200/info->params.clock_speed)-1)); in usc_enable_loopback()
5204 usc_OutReg(info, TC0R, (u16)((14745600/info->params.clock_speed)-1)); in usc_enable_loopback()
5216 info->loopback_bits = 0x300; in usc_enable_loopback()
5217 outw( 0x0300, info->io_base + CCAR ); in usc_enable_loopback()
5223 info->loopback_bits = 0; in usc_enable_loopback()
5224 outw( 0,info->io_base + CCAR ); in usc_enable_loopback()
5247 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_enable_aux_clock()
5253 /* Tc = (Xtal/Speed) - 1 */ in usc_enable_aux_clock()
5262 Tc--; in usc_enable_aux_clock()
5264 /* Write 16-bit Time Constant for BRG0 */ in usc_enable_aux_clock()
5307 DMABUFFERENTRY *buffer_list = info->rx_buffer_list; in usc_process_rxoverrun_sync()
5317 frame_start_index = start_index = end_index = info->current_rx_buffer; in usc_process_rxoverrun_sync()
5322 /* (status set to non-zero). */ in usc_process_rxoverrun_sync()
5350 if ( end_index == info->rx_buffer_count ) in usc_process_rxoverrun_sync()
5379 *((unsigned long *)&(info->rx_buffer_list[start_index++].count)) = DMABUFFERSIZE; in usc_process_rxoverrun_sync()
5382 if ( start_index == info->rx_buffer_count ) in usc_process_rxoverrun_sync()
5402 phys_addr = info->rx_buffer_list[frame_start_index].phys_entry; in usc_process_rxoverrun_sync()
5416 if ( info->params.flags & HDLC_FLAG_AUTO_DCD ) in usc_process_rxoverrun_sync()
5441 __FILE__,__LINE__, info->device_name ); in usc_stop_receiver()
5457 info->rx_enabled = false; in usc_stop_receiver()
5458 info->rx_overflow = false; in usc_stop_receiver()
5459 info->rx_rcc_underrun = false; in usc_stop_receiver()
5476 __FILE__,__LINE__, info->device_name ); in usc_start_receiver()
5484 if ( info->params.mode == MGSL_MODE_HDLC || in usc_start_receiver()
5485 info->params.mode == MGSL_MODE_RAW ) { in usc_start_receiver()
5491 phys_addr = info->rx_buffer_list[0].phys_entry; in usc_start_receiver()
5505 if ( info->params.flags & HDLC_FLAG_AUTO_DCD ) in usc_start_receiver()
5522 info->rx_enabled = true; in usc_start_receiver()
5541 __FILE__,__LINE__, info->device_name ); in usc_start_transmitter()
5543 if ( info->xmit_cnt ) { in usc_start_transmitter()
5549 info->drop_rts_on_tx_done = false; in usc_start_transmitter()
5551 if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) { in usc_start_transmitter()
5553 if ( !(info->serial_signals & SerialSignal_RTS) ) { in usc_start_transmitter()
5554 info->serial_signals |= SerialSignal_RTS; in usc_start_transmitter()
5556 info->drop_rts_on_tx_done = true; in usc_start_transmitter()
5561 if ( info->params.mode == MGSL_MODE_ASYNC ) { in usc_start_transmitter()
5562 if ( !info->tx_active ) { in usc_start_transmitter()
5575 FrameSize = info->tx_buffer_list[info->start_tx_dma_buffer].rcc; in usc_start_transmitter()
5581 if ( info->params.mode == MGSL_MODE_RAW ) in usc_start_transmitter()
5582 info->tx_buffer_list[info->start_tx_dma_buffer].rcc = 0; in usc_start_transmitter()
5591 phys_addr = info->tx_buffer_list[info->start_tx_dma_buffer].phys_entry; in usc_start_transmitter()
5599 if ( info->params.mode == MGSL_MODE_RAW && in usc_start_transmitter()
5600 info->num_tx_dma_buffers > 1 ) { in usc_start_transmitter()
5617 mod_timer(&info->tx_timer, jiffies + in usc_start_transmitter()
5620 info->tx_active = true; in usc_start_transmitter()
5623 if ( !info->tx_enabled ) { in usc_start_transmitter()
5624 info->tx_enabled = true; in usc_start_transmitter()
5625 if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) in usc_start_transmitter()
5644 __FILE__,__LINE__, info->device_name ); in usc_stop_transmitter()
5646 del_timer(&info->tx_timer); in usc_stop_transmitter()
5656 info->tx_enabled = false; in usc_stop_transmitter()
5657 info->tx_active = false; in usc_stop_transmitter()
5674 if ( !info->xmit_cnt && !info->x_char ) in usc_load_txfifo()
5682 while( (Fifocount = usc_InReg(info, TICR) >> 8) && info->xmit_cnt ) { in usc_load_txfifo()
5686 if ( (info->xmit_cnt > 1) && (Fifocount > 1) && !info->x_char ) { in usc_load_txfifo()
5687 /* write a 16-bit word from transmit buffer to 16C32 */ in usc_load_txfifo()
5689 TwoBytes[0] = info->xmit_buf[info->xmit_tail++]; in usc_load_txfifo()
5690 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5691 TwoBytes[1] = info->xmit_buf[info->xmit_tail++]; in usc_load_txfifo()
5692 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5694 outw( *((u16 *)TwoBytes), info->io_base + DATAREG); in usc_load_txfifo()
5696 info->xmit_cnt -= 2; in usc_load_txfifo()
5697 info->icount.tx += 2; in usc_load_txfifo()
5701 outw( (inw( info->io_base + CCAR) & 0x0780) | (TDR+LSBONLY), in usc_load_txfifo()
5702 info->io_base + CCAR ); in usc_load_txfifo()
5704 if (info->x_char) { in usc_load_txfifo()
5706 outw( info->x_char,info->io_base + CCAR ); in usc_load_txfifo()
5707 info->x_char = 0; in usc_load_txfifo()
5709 outw( info->xmit_buf[info->xmit_tail++],info->io_base + CCAR ); in usc_load_txfifo()
5710 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5711 info->xmit_cnt--; in usc_load_txfifo()
5713 info->icount.tx++; in usc_load_txfifo()
5728 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) { in usc_reset()
5735 volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50); in usc_reset()
5736 u32 *LCR0BRDR = (u32 *)(info->lcr_base + 0x28); in usc_reset()
5738 info->misc_ctrl_value |= BIT30; in usc_reset()
5739 *MiscCtrl = info->misc_ctrl_value; in usc_reset()
5749 info->misc_ctrl_value &= ~BIT30; in usc_reset()
5750 *MiscCtrl = info->misc_ctrl_value; in usc_reset()
5753 1, // Write Strobe Hold (0-3) in usc_reset()
5754 2, // Write Strobe Delay (0-3) in usc_reset()
5755 2, // Read Strobe Delay (0-3) in usc_reset()
5756 0, // NWDD (Write data-data) (0-3) in usc_reset()
5757 4, // NWAD (Write Addr-data) (0-31) in usc_reset()
5758 0, // NXDA (Read/Write Data-Addr) (0-3) in usc_reset()
5759 0, // NRDD (Read Data-Data) (0-3) in usc_reset()
5760 5 // NRAD (Read Addr-Data) (0-31) in usc_reset()
5764 outb( 0,info->io_base + 8 ); in usc_reset()
5767 info->mbre_bit = 0; in usc_reset()
5768 info->loopback_bits = 0; in usc_reset()
5769 info->usc_idle_mode = 0; in usc_reset()
5788 outw( 0x000c,info->io_base + SDPIN ); in usc_reset()
5791 outw( 0,info->io_base ); in usc_reset()
5792 outw( 0,info->io_base + CCAR ); in usc_reset()
5819 * <13..12> 00 DCD is active low input in usc_reset()
5847 outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */ in usc_set_async_mode()
5865 if ( info->params.stop_bits != 1 ) in usc_set_async_mode()
5884 if ( info->params.data_bits != 8 ) in usc_set_async_mode()
5887 if ( info->params.parity != ASYNC_PARITY_NONE ) { in usc_set_async_mode()
5889 if ( info->params.parity != ASYNC_PARITY_ODD ) in usc_set_async_mode()
5941 if ( info->params.data_bits != 8 ) in usc_set_async_mode()
5944 if ( info->params.parity != ASYNC_PARITY_NONE ) { in usc_set_async_mode()
5946 if ( info->params.parity != ASYNC_PARITY_ODD ) in usc_set_async_mode()
5980 usc_enable_async_clock( info, info->params.data_rate ); in usc_set_async_mode()
6011 if (info->bus_type == MGSL_BUS_TYPE_ISA) { in usc_set_async_mode()
6017 if (info->params.loopback) { in usc_set_async_mode()
6018 info->loopback_bits = 0x300; in usc_set_async_mode()
6019 outw(0x0300, info->io_base + CCAR); in usc_set_async_mode()
6041 unsigned long oldmode = info->params.mode; in usc_loopback_frame()
6043 info->params.mode = MGSL_MODE_HDLC; in usc_loopback_frame()
6050 /* Write 16-bit Time Constant for BRG0 */ in usc_loopback_frame()
6055 * <15..14> 00 Don't use 32-bit Tx Control Blocks (TCBs) in usc_loopback_frame()
6058 * <11..10> 00 Preamble Length = 8-Bits in usc_loopback_frame()
6060 * <7..6> 10 Don't use 32-bit Rx status Blocks (RSBs) in usc_loopback_frame()
6081 outw(0,info->io_base + DATAREG); in usc_loopback_frame()
6097 info->params.mode = oldmode; in usc_loopback_frame()
6111 if (info->bus_type == MGSL_BUS_TYPE_ISA) { in usc_set_sync_mode()
6117 usc_enable_aux_clock(info, info->params.clock_speed); in usc_set_sync_mode()
6119 if (info->params.loopback) in usc_set_sync_mode()
6135 switch( info->idle_mode ){ in usc_set_txidle()
6145 info->usc_idle_mode = usc_idle_mode; in usc_set_txidle()
6147 info->tcsr_value &= ~IDLEMODE_MASK; /* clear idle mode bits */ in usc_set_txidle()
6148 info->tcsr_value += usc_idle_mode; in usc_set_txidle()
6149 usc_OutReg(info, TCSR, info->tcsr_value); in usc_set_txidle()
6158 if ( info->params.mode == MGSL_MODE_RAW ) { in usc_set_txidle()
6160 switch( info->idle_mode ) { in usc_set_txidle()
6197 info->serial_signals &= SerialSignal_RTS | SerialSignal_DTR; in usc_get_serial_signals()
6207 info->serial_signals |= SerialSignal_CTS; in usc_get_serial_signals()
6210 info->serial_signals |= SerialSignal_DCD; in usc_get_serial_signals()
6213 info->serial_signals |= SerialSignal_RI; in usc_get_serial_signals()
6216 info->serial_signals |= SerialSignal_DSR; in usc_get_serial_signals()
6231 unsigned char V24Out = info->serial_signals; in usc_set_serial_signals()
6281 * Write 16-bit Time Constant for BRG0 in usc_enable_async_clock()
6282 * Time Constant = (ClkSpeed / data_rate) - 1 in usc_enable_async_clock()
6286 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in usc_enable_async_clock()
6287 usc_OutReg( info, TC0R, (u16)((691200/data_rate) - 1) ); in usc_enable_async_clock()
6289 usc_OutReg( info, TC0R, (u16)((921600/data_rate) - 1) ); in usc_enable_async_clock()
6374 for ( i = 0; i < info->tx_buffer_count; i++ ) { in mgsl_reset_tx_dma_buffers()
6375 *((unsigned long *)&(info->tx_buffer_list[i].count)) = 0; in mgsl_reset_tx_dma_buffers()
6378 info->current_tx_buffer = 0; in mgsl_reset_tx_dma_buffers()
6379 info->start_tx_dma_buffer = 0; in mgsl_reset_tx_dma_buffers()
6380 info->tx_dma_buffers_used = 0; in mgsl_reset_tx_dma_buffers()
6382 info->get_tx_holding_index = 0; in mgsl_reset_tx_dma_buffers()
6383 info->put_tx_holding_index = 0; in mgsl_reset_tx_dma_buffers()
6384 info->tx_holding_count = 0; in mgsl_reset_tx_dma_buffers()
6398 return info->tx_buffer_count - info->tx_dma_buffers_used; in num_free_tx_dma_buffers()
6415 for ( i = 0; i < info->rx_buffer_count; i++ ) { in mgsl_reset_rx_dma_buffers()
6416 *((unsigned long *)&(info->rx_buffer_list[i].count)) = DMABUFFERSIZE; in mgsl_reset_rx_dma_buffers()
6417 // info->rx_buffer_list[i].count = DMABUFFERSIZE; in mgsl_reset_rx_dma_buffers()
6418 // info->rx_buffer_list[i].status = 0; in mgsl_reset_rx_dma_buffers()
6421 info->current_rx_buffer = 0; in mgsl_reset_rx_dma_buffers()
6451 pBufEntry = &(info->rx_buffer_list[Index]); in mgsl_free_rx_frame_buffers()
6459 // pBufEntry->status = 0; in mgsl_free_rx_frame_buffers()
6460 // pBufEntry->count = DMABUFFERSIZE; in mgsl_free_rx_frame_buffers()
6461 *((unsigned long *)&(pBufEntry->count)) = DMABUFFERSIZE; in mgsl_free_rx_frame_buffers()
6465 if ( Index == info->rx_buffer_count ) in mgsl_free_rx_frame_buffers()
6470 info->current_rx_buffer = Index; in mgsl_free_rx_frame_buffers()
6490 struct tty_struct *tty = info->port.tty; in mgsl_get_rx_frame()
6496 * a non-zero status field in the buffer entries. (The status in mgsl_get_rx_frame()
6500 StartIndex = EndIndex = info->current_rx_buffer; in mgsl_get_rx_frame()
6502 while( !info->rx_buffer_list[EndIndex].status ) { in mgsl_get_rx_frame()
6504 * If the count field of the buffer entry is non-zero then in mgsl_get_rx_frame()
6510 if ( info->rx_buffer_list[EndIndex].count ) in mgsl_get_rx_frame()
6515 if ( EndIndex == info->rx_buffer_count ) in mgsl_get_rx_frame()
6525 if ( info->rx_enabled ){ in mgsl_get_rx_frame()
6526 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6528 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6537 status = info->rx_buffer_list[EndIndex].status; in mgsl_get_rx_frame()
6542 info->icount.rxshort++; in mgsl_get_rx_frame()
6544 info->icount.rxabort++; in mgsl_get_rx_frame()
6546 info->icount.rxover++; in mgsl_get_rx_frame()
6548 info->icount.rxcrc++; in mgsl_get_rx_frame()
6549 if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) in mgsl_get_rx_frame()
6555 info->netdev->stats.rx_errors++; in mgsl_get_rx_frame()
6556 info->netdev->stats.rx_frame_errors++; in mgsl_get_rx_frame()
6566 * once for each receive character) minus 2 for the 16-bit CRC. in mgsl_get_rx_frame()
6569 framesize = RCLRVALUE - info->rx_buffer_list[EndIndex].rcc; in mgsl_get_rx_frame()
6572 if ( info->params.crc_type == HDLC_CRC_16_CCITT ) in mgsl_get_rx_frame()
6573 framesize -= 2; in mgsl_get_rx_frame()
6574 else if ( info->params.crc_type == HDLC_CRC_32_CCITT ) in mgsl_get_rx_frame()
6575 framesize -= 4; in mgsl_get_rx_frame()
6580 __FILE__,__LINE__,info->device_name,status,framesize); in mgsl_get_rx_frame()
6583 mgsl_trace_block(info,info->rx_buffer_list[StartIndex].virt_addr, in mgsl_get_rx_frame()
6587 if ( ( (info->params.crc_type & HDLC_CRC_RETURN_EX) && in mgsl_get_rx_frame()
6588 ((framesize+1) > info->max_frame_size) ) || in mgsl_get_rx_frame()
6589 (framesize > info->max_frame_size) ) in mgsl_get_rx_frame()
6590 info->icount.rxlong++; in mgsl_get_rx_frame()
6595 unsigned char *ptmp = info->intermediate_rxbuffer; in mgsl_get_rx_frame()
6598 info->icount.rxok++; in mgsl_get_rx_frame()
6607 pBufEntry = &(info->rx_buffer_list[index]); in mgsl_get_rx_frame()
6608 memcpy( ptmp, pBufEntry->virt_addr, partial_count ); in mgsl_get_rx_frame()
6610 copy_count -= partial_count; in mgsl_get_rx_frame()
6612 if ( ++index == info->rx_buffer_count ) in mgsl_get_rx_frame()
6616 if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) { in mgsl_get_rx_frame()
6624 __FILE__,__LINE__,info->device_name, in mgsl_get_rx_frame()
6629 if (info->netcount) in mgsl_get_rx_frame()
6630 hdlcdev_rx(info,info->intermediate_rxbuffer,framesize); in mgsl_get_rx_frame()
6633 ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize); in mgsl_get_rx_frame()
6643 if ( info->rx_enabled && info->rx_overflow ) { in mgsl_get_rx_frame()
6649 if ( !info->rx_buffer_list[EndIndex].status && in mgsl_get_rx_frame()
6650 info->rx_buffer_list[EndIndex].count ) { in mgsl_get_rx_frame()
6651 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6653 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6666 * The USC receiver is triggering off of DCD going active to start a new
6667 * frame, and DCD going inactive to terminate the frame (similar to
6671 * If DCD goes inactive, the last Rx DMA Buffer will have a non-zero
6688 struct tty_struct *tty = info->port.tty; in mgsl_get_raw_rx_frame()
6700 * non-zero, the USC is still actively using the current buffer. in mgsl_get_raw_rx_frame()
6705 CurrentIndex = NextIndex = info->current_rx_buffer; in mgsl_get_raw_rx_frame()
6707 if ( NextIndex == info->rx_buffer_count ) in mgsl_get_raw_rx_frame()
6710 if ( info->rx_buffer_list[CurrentIndex].status != 0 || in mgsl_get_raw_rx_frame()
6711 (info->rx_buffer_list[CurrentIndex].count == 0 && in mgsl_get_raw_rx_frame()
6712 info->rx_buffer_list[NextIndex].count == 0)) { in mgsl_get_raw_rx_frame()
6714 * Either the status field of this dma buffer is non-zero in mgsl_get_raw_rx_frame()
6716 * buffer is marked as in use -- implying this buffer is complete in mgsl_get_raw_rx_frame()
6720 status = info->rx_buffer_list[CurrentIndex].status; in mgsl_get_raw_rx_frame()
6725 info->icount.rxshort++; in mgsl_get_raw_rx_frame()
6727 info->icount.rxabort++; in mgsl_get_raw_rx_frame()
6729 info->icount.rxover++; in mgsl_get_raw_rx_frame()
6731 info->icount.rxcrc++; in mgsl_get_raw_rx_frame()
6739 * once for each receive character) minus 2 or 4 for the 16-bit in mgsl_get_raw_rx_frame()
6740 * or 32-bit CRC. in mgsl_get_raw_rx_frame()
6745 * If the DMA Buffer Entry's Status field is non-zero, the in mgsl_get_raw_rx_frame()
6746 * receive operation completed normally (ie: DCD dropped). The in mgsl_get_raw_rx_frame()
6749 * entry with a non-zero status. This can occur if the total in mgsl_get_raw_rx_frame()
6750 * frame size (number of bytes between the time DCD goes active in mgsl_get_raw_rx_frame()
6751 * to the time DCD goes inactive) exceeds 65535 bytes. In this in mgsl_get_raw_rx_frame()
6754 * frame size. If this happens (non-zero status and zero RCC), in mgsl_get_raw_rx_frame()
6760 * terminated with a non-zero status and the RCC in mgsl_get_raw_rx_frame()
6769 if ( info->rx_buffer_list[CurrentIndex].rcc ) in mgsl_get_raw_rx_frame()
6770 framesize = RCLRVALUE - info->rx_buffer_list[CurrentIndex].rcc; in mgsl_get_raw_rx_frame()
6791 __FILE__,__LINE__,info->device_name,status,framesize); in mgsl_get_raw_rx_frame()
6794 mgsl_trace_block(info,info->rx_buffer_list[CurrentIndex].virt_addr, in mgsl_get_raw_rx_frame()
6801 pBufEntry = &(info->rx_buffer_list[CurrentIndex]); in mgsl_get_raw_rx_frame()
6802 memcpy( info->intermediate_rxbuffer, pBufEntry->virt_addr, framesize); in mgsl_get_raw_rx_frame()
6803 info->icount.rxok++; in mgsl_get_raw_rx_frame()
6805 ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize); in mgsl_get_raw_rx_frame()
6815 if ( info->rx_enabled && info->rx_overflow ) { in mgsl_get_raw_rx_frame()
6821 if ( !info->rx_buffer_list[CurrentIndex].status && in mgsl_get_raw_rx_frame()
6822 info->rx_buffer_list[CurrentIndex].count ) { in mgsl_get_raw_rx_frame()
6823 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_raw_rx_frame()
6825 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_raw_rx_frame()
6855 if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) { in mgsl_load_tx_dma_buffer()
6859 info->cmr_value |= BIT13; in mgsl_load_tx_dma_buffer()
6866 i = info->current_tx_buffer; in mgsl_load_tx_dma_buffer()
6867 info->start_tx_dma_buffer = i; in mgsl_load_tx_dma_buffer()
6872 info->tx_buffer_list[i].status = info->cmr_value & 0xf000; in mgsl_load_tx_dma_buffer()
6873 info->tx_buffer_list[i].rcc = BufferSize; in mgsl_load_tx_dma_buffer()
6874 info->tx_buffer_list[i].count = BufferSize; in mgsl_load_tx_dma_buffer()
6881 pBufEntry = &info->tx_buffer_list[i++]; in mgsl_load_tx_dma_buffer()
6883 if ( i == info->tx_buffer_count ) in mgsl_load_tx_dma_buffer()
6895 if ( info->bus_type == MGSL_BUS_TYPE_PCI ) in mgsl_load_tx_dma_buffer()
6896 mgsl_load_pci_memory(pBufEntry->virt_addr, Buffer,Copycount); in mgsl_load_tx_dma_buffer()
6898 memcpy(pBufEntry->virt_addr, Buffer, Copycount); in mgsl_load_tx_dma_buffer()
6900 pBufEntry->count = Copycount; in mgsl_load_tx_dma_buffer()
6904 BufferSize -= Copycount; in mgsl_load_tx_dma_buffer()
6906 ++info->tx_dma_buffers_used; in mgsl_load_tx_dma_buffer()
6910 info->current_tx_buffer = i; in mgsl_load_tx_dma_buffer()
6931 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_register_test()
6967 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_register_test()
6983 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_irq_test()
6991 info->irq_occurred = false; in mgsl_irq_test()
7006 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_irq_test()
7009 while( EndTime-- && !info->irq_occurred ) { in mgsl_irq_test()
7013 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_irq_test()
7015 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_irq_test()
7017 return info->irq_occurred; in mgsl_irq_test()
7044 memcpy(&tmp_params,&info->params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
7046 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
7050 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7061 * non-destructive to system memory) before we try and write to in mgsl_dma_test()
7080 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7090 info->tx_buffer_list[0].count = FrameSize; in mgsl_dma_test()
7091 info->tx_buffer_list[0].rcc = FrameSize; in mgsl_dma_test()
7092 info->tx_buffer_list[0].status = 0x4000; in mgsl_dma_test()
7096 TmpPtr = info->tx_buffer_list[0].virt_addr; in mgsl_dma_test()
7103 info->rx_buffer_list[0].status = 0; in mgsl_dma_test()
7104 info->rx_buffer_list[0].count = FrameSize + 4; in mgsl_dma_test()
7108 memset( info->rx_buffer_list[0].virt_addr, 0, FrameSize + 4 ); in mgsl_dma_test()
7113 info->tx_buffer_list[1].count = 0; in mgsl_dma_test()
7114 info->rx_buffer_list[1].count = 0; in mgsl_dma_test()
7121 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7127 phys_addr = info->rx_buffer_list[0].phys_entry; in mgsl_dma_test()
7138 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7154 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7156 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7171 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7176 usc_OutReg( info, TCLR, (unsigned short)info->tx_buffer_list[0].count ); in mgsl_dma_test()
7181 phys_addr = info->tx_buffer_list[0].phys_entry; in mgsl_dma_test()
7194 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7210 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7212 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7220 if ( FifoLevel <= (32 - FrameSize) ) in mgsl_dma_test()
7230 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7236 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7248 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7250 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7258 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7260 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7278 status=info->rx_buffer_list[0].status; in mgsl_dma_test()
7284 status=info->rx_buffer_list[0].status; in mgsl_dma_test()
7291 status = info->rx_buffer_list[0].status; in mgsl_dma_test()
7297 if ( memcmp( info->tx_buffer_list[0].virt_addr , in mgsl_dma_test()
7298 info->rx_buffer_list[0].virt_addr, FrameSize ) ){ in mgsl_dma_test()
7304 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7306 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7309 memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
7320 * Return Value: 0 if success, otherwise -ENODEV
7326 __FILE__,__LINE__,info->device_name ); in mgsl_adapter_test()
7329 info->init_error = DiagStatus_AddressFailure; in mgsl_adapter_test()
7331 __FILE__,__LINE__,info->device_name, (unsigned short)(info->io_base) ); in mgsl_adapter_test()
7332 return -ENODEV; in mgsl_adapter_test()
7336 info->init_error = DiagStatus_IrqFailure; in mgsl_adapter_test()
7338 __FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) ); in mgsl_adapter_test()
7339 return -ENODEV; in mgsl_adapter_test()
7343 info->init_error = DiagStatus_DmaFailure; in mgsl_adapter_test()
7345 __FILE__,__LINE__,info->device_name, (unsigned short)(info->dma_level) ); in mgsl_adapter_test()
7346 return -ENODEV; in mgsl_adapter_test()
7351 __FILE__,__LINE__,info->device_name ); in mgsl_adapter_test()
7373 if ( info->bus_type != MGSL_BUS_TYPE_PCI ) in mgsl_memory_test()
7376 TestAddr = (unsigned long *)info->memory_base; in mgsl_memory_test()
7394 TestAddr = (unsigned long *)info->memory_base; in mgsl_memory_test()
7402 memset( info->memory_base, 0, SHARED_MEM_ADDRESS_SIZE ); in mgsl_memory_test()
7448 /* 16 32-bit writes @ 60ns each = 960ns max latency on local bus */ in mgsl_load_pci_memory()
7472 printk("%s tx data:\n",info->device_name); in mgsl_trace_block()
7474 printk("%s rx data:\n",info->device_name); in mgsl_trace_block()
7495 count -= linecount; in mgsl_trace_block()
7514 __FILE__,__LINE__,info->device_name); in mgsl_tx_timeout()
7515 if(info->tx_active && in mgsl_tx_timeout()
7516 (info->params.mode == MGSL_MODE_HDLC || in mgsl_tx_timeout()
7517 info->params.mode == MGSL_MODE_RAW) ) { in mgsl_tx_timeout()
7518 info->icount.txtimeout++; in mgsl_tx_timeout()
7520 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_tx_timeout()
7521 info->tx_active = false; in mgsl_tx_timeout()
7522 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_tx_timeout()
7524 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_tx_timeout()
7527 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_tx_timeout()
7530 if (info->netcount) in mgsl_tx_timeout()
7546 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_loopmode_send_done()
7547 if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) { in mgsl_loopmode_send_done()
7548 if (info->tx_active) in mgsl_loopmode_send_done()
7549 info->loopmode_send_done_requested = true; in mgsl_loopmode_send_done()
7553 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_loopmode_send_done()
7563 info->loopmode_send_done_requested = false; in usc_loopmode_send_done()
7565 info->cmr_value &= ~BIT13; in usc_loopmode_send_done()
7566 usc_OutReg(info, CMR, info->cmr_value); in usc_loopmode_send_done()
7585 info->loopmode_insert_requested = true; in usc_loopmode_insert_request()
7594 info->cmr_value |= BIT13; in usc_loopmode_insert_request()
7595 usc_OutReg(info, CMR, info->cmr_value); in usc_loopmode_insert_request()
7625 if (info->port.count) in hdlcdev_attach()
7626 return -EBUSY; in hdlcdev_attach()
7635 default: return -EINVAL; in hdlcdev_attach()
7643 default: return -EINVAL; in hdlcdev_attach()
7646 info->params.encoding = new_encoding; in hdlcdev_attach()
7647 info->params.crc_type = new_crctype; in hdlcdev_attach()
7650 if (info->netcount) in hdlcdev_attach()
7669 printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name); in hdlcdev_xmit()
7675 info->xmit_cnt = skb->len; in hdlcdev_xmit()
7676 mgsl_load_tx_dma_buffer(info, skb->data, skb->len); in hdlcdev_xmit()
7679 dev->stats.tx_packets++; in hdlcdev_xmit()
7680 dev->stats.tx_bytes += skb->len; in hdlcdev_xmit()
7689 spin_lock_irqsave(&info->irq_spinlock,flags); in hdlcdev_xmit()
7690 if (!info->tx_active) in hdlcdev_xmit()
7692 spin_unlock_irqrestore(&info->irq_spinlock,flags); in hdlcdev_xmit()
7712 printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name); in hdlcdev_open()
7720 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
7721 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
7722 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name); in hdlcdev_open()
7723 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7724 return -EBUSY; in hdlcdev_open()
7726 info->netcount=1; in hdlcdev_open()
7727 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7731 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
7732 info->netcount=0; in hdlcdev_open()
7733 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7738 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
7745 /* inform generic HDLC layer of current DCD status */ in hdlcdev_open()
7746 spin_lock_irqsave(&info->irq_spinlock, flags); in hdlcdev_open()
7748 spin_unlock_irqrestore(&info->irq_spinlock, flags); in hdlcdev_open()
7749 if (info->serial_signals & SerialSignal_DCD) in hdlcdev_open()
7770 printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name); in hdlcdev_close()
7779 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
7780 info->netcount=0; in hdlcdev_close()
7781 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
7799 sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; in hdlcdev_ioctl()
7804 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name); in hdlcdev_ioctl()
7807 if (info->port.count) in hdlcdev_ioctl()
7808 return -EBUSY; in hdlcdev_ioctl()
7813 switch(ifr->ifr_settings.type) { in hdlcdev_ioctl()
7816 ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; in hdlcdev_ioctl()
7817 if (ifr->ifr_settings.size < size) { in hdlcdev_ioctl()
7818 ifr->ifr_settings.size = size; /* data size wanted */ in hdlcdev_ioctl()
7819 return -ENOBUFS; in hdlcdev_ioctl()
7822 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
7836 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
7837 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
7840 return -EFAULT; in hdlcdev_ioctl()
7846 return -EPERM; in hdlcdev_ioctl()
7848 return -EFAULT; in hdlcdev_ioctl()
7856 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
7861 default: return -EINVAL; in hdlcdev_ioctl()
7865 return -EINVAL; in hdlcdev_ioctl()
7867 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
7871 info->params.flags |= flags; in hdlcdev_ioctl()
7873 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
7876 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
7878 info->params.clock_speed = 0; in hdlcdev_ioctl()
7881 if (info->netcount) in hdlcdev_ioctl()
7901 printk("hdlcdev_tx_timeout(%s)\n",dev->name); in hdlcdev_tx_timeout()
7903 dev->stats.tx_errors++; in hdlcdev_tx_timeout()
7904 dev->stats.tx_aborted_errors++; in hdlcdev_tx_timeout()
7906 spin_lock_irqsave(&info->irq_spinlock,flags); in hdlcdev_tx_timeout()
7908 spin_unlock_irqrestore(&info->irq_spinlock,flags); in hdlcdev_tx_timeout()
7921 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
7922 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
7936 struct net_device *dev = info->netdev; in hdlcdev_rx()
7939 printk("hdlcdev_rx(%s)\n", dev->name); in hdlcdev_rx()
7943 dev->name); in hdlcdev_rx()
7944 dev->stats.rx_dropped++; in hdlcdev_rx()
7950 skb->protocol = hdlc_type_trans(skb, dev); in hdlcdev_rx()
7952 dev->stats.rx_packets++; in hdlcdev_rx()
7953 dev->stats.rx_bytes += size; in hdlcdev_rx()
7985 return -ENOMEM; in hdlcdev_init()
7989 dev->base_addr = info->io_base; in hdlcdev_init()
7990 dev->irq = info->irq_level; in hdlcdev_init()
7991 dev->dma = info->dma_level; in hdlcdev_init()
7994 dev->netdev_ops = &hdlcdev_ops; in hdlcdev_init()
7995 dev->watchdog_timeo = 10 * HZ; in hdlcdev_init()
7996 dev->tx_queue_len = 50; in hdlcdev_init()
8000 hdlc->attach = hdlcdev_attach; in hdlcdev_init()
8001 hdlc->xmit = hdlcdev_xmit; in hdlcdev_init()
8011 info->netdev = dev; in hdlcdev_init()
8023 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
8024 free_netdev(info->netdev); in hdlcdev_exit()
8025 info->netdev = NULL; in hdlcdev_exit()
8038 return -EIO; in synclink_init_one()
8044 return -EIO; in synclink_init_one()
8049 info->io_base = pci_resource_start(dev, 2); in synclink_init_one()
8050 info->irq_level = dev->irq; in synclink_init_one()
8051 info->phys_memory_base = pci_resource_start(dev, 3); in synclink_init_one()
8057 info->phys_lcr_base = pci_resource_start(dev, 0); in synclink_init_one()
8058 info->lcr_offset = info->phys_lcr_base & (PAGE_SIZE-1); in synclink_init_one()
8059 info->phys_lcr_base &= ~(PAGE_SIZE-1); in synclink_init_one()
8061 info->bus_type = MGSL_BUS_TYPE_PCI; in synclink_init_one()
8062 info->io_addr_size = 8; in synclink_init_one()
8063 info->irq_flags = IRQF_SHARED; in synclink_init_one()
8065 if (dev->device == 0x0210) { in synclink_init_one()
8067 info->misc_ctrl_value = 0x007c4080; in synclink_init_one()
8068 info->hw_version = 1; in synclink_init_one()
8075 info->misc_ctrl_value = 0x087e4546; in synclink_init_one()
8076 info->hw_version = 0; in synclink_init_one()