Lines Matching +full:overrun +full:- +full:throttle +full:- +full:ms
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 */
392 #define RDMR 0x82 /* Receive DMA mode Register (non-shared) */
553 #define usc_UnlatchTxstatusBits(a,b) usc_OutReg( (a), TCSR, (u16)((a)->tcsr_value + ((b) & 0x00FF))…
673 #define usc_TCmd(a,b) usc_OutReg((a), TCSR, (u16)((a)->tcsr_value + (b)))
713 #define dev_to_port(D) (dev_to_hdlc(D)->priv)
835 /* set non-zero on successful registration with PCI subsystem */
845 * Set this param to non-zero to load eax with the
847 * This is useful for use with gdb and add-symbol-file command.
913 * (gdb) to get the .text address for the add-symbol-file command.
934 if (info->magic != MGSL_MAGIC) { in mgsl_paranoia_check()
951 * ldisc_receive_buf - pass receive data to line discipline
962 if (ld->ops->receive_buf) in ldisc_receive_buf()
963 ld->ops->receive_buf(tty, data, flags, count); in ldisc_receive_buf()
968 /* mgsl_stop() throttle (stop) transmitter
975 struct mgsl_struct *info = tty->driver_data; in mgsl_stop()
978 if (mgsl_paranoia_check(info, tty->name, "mgsl_stop")) in mgsl_stop()
982 printk("mgsl_stop(%s)\n",info->device_name); in mgsl_stop()
984 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_stop()
985 if (info->tx_enabled) in mgsl_stop()
987 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_stop()
998 struct mgsl_struct *info = tty->driver_data; in mgsl_start()
1001 if (mgsl_paranoia_check(info, tty->name, "mgsl_start")) in mgsl_start()
1005 printk("mgsl_start(%s)\n",info->device_name); in mgsl_start()
1007 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_start()
1008 if (!info->tx_enabled) in mgsl_start()
1010 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_start()
1026 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_action()
1028 if (info->pending_bh & BH_RECEIVE) { in mgsl_bh_action()
1029 info->pending_bh &= ~BH_RECEIVE; in mgsl_bh_action()
1031 } else if (info->pending_bh & BH_TRANSMIT) { in mgsl_bh_action()
1032 info->pending_bh &= ~BH_TRANSMIT; in mgsl_bh_action()
1034 } else if (info->pending_bh & BH_STATUS) { in mgsl_bh_action()
1035 info->pending_bh &= ~BH_STATUS; in mgsl_bh_action()
1041 info->bh_running = false; in mgsl_bh_action()
1042 info->bh_requested = false; in mgsl_bh_action()
1045 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_action()
1061 __FILE__,__LINE__,info->device_name); in mgsl_bh_handler()
1063 info->bh_running = true; in mgsl_bh_handler()
1092 __FILE__,__LINE__,info->device_name); in mgsl_bh_handler()
1098 (info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame); in mgsl_bh_receive()
1102 __FILE__,__LINE__,info->device_name); in mgsl_bh_receive()
1106 if (info->rx_rcc_underrun) { in mgsl_bh_receive()
1108 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_receive()
1110 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_receive()
1118 struct tty_struct *tty = info->port.tty; in mgsl_bh_transmit()
1123 __FILE__,__LINE__,info->device_name); in mgsl_bh_transmit()
1131 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_bh_transmit()
1132 if ( !info->tx_active && info->loopmode_send_done_requested ) in mgsl_bh_transmit()
1134 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_bh_transmit()
1141 __FILE__,__LINE__,info->device_name); in mgsl_bh_status()
1143 info->ri_chkcount = 0; in mgsl_bh_status()
1144 info->dsr_chkcount = 0; in mgsl_bh_status()
1145 info->dcd_chkcount = 0; in mgsl_bh_status()
1146 info->cts_chkcount = 0; in mgsl_bh_status()
1167 info->loopmode_insert_requested && in mgsl_isr_receive_status()
1170 ++info->icount.rxabort; in mgsl_isr_receive_status()
1171 info->loopmode_insert_requested = false; in mgsl_isr_receive_status()
1174 info->cmr_value &= ~BIT13; in mgsl_isr_receive_status()
1175 usc_OutReg(info, CMR, info->cmr_value); in mgsl_isr_receive_status()
1184 info->icount.exithunt++; in mgsl_isr_receive_status()
1186 info->icount.rxidle++; in mgsl_isr_receive_status()
1187 wake_up_interruptible(&info->event_wait_q); in mgsl_isr_receive_status()
1191 info->icount.rxover++; in mgsl_isr_receive_status()
1233 info->icount.txok++; in mgsl_isr_transmit_status()
1235 info->icount.txunder++; in mgsl_isr_transmit_status()
1237 info->icount.txabort++; in mgsl_isr_transmit_status()
1239 info->icount.txunder++; in mgsl_isr_transmit_status()
1241 info->tx_active = false; in mgsl_isr_transmit_status()
1242 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_isr_transmit_status()
1243 del_timer(&info->tx_timer); in mgsl_isr_transmit_status()
1245 if ( info->drop_rts_on_tx_done ) { in mgsl_isr_transmit_status()
1247 if ( info->serial_signals & SerialSignal_RTS ) { in mgsl_isr_transmit_status()
1248 info->serial_signals &= ~SerialSignal_RTS; in mgsl_isr_transmit_status()
1251 info->drop_rts_on_tx_done = false; in mgsl_isr_transmit_status()
1255 if (info->netcount) in mgsl_isr_transmit_status()
1260 if (info->port.tty->stopped || info->port.tty->hw_stopped) { in mgsl_isr_transmit_status()
1264 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_status()
1291 icount = &info->icount; in mgsl_isr_io_pin()
1294 if ((info->ri_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1296 icount->rng++; in mgsl_isr_io_pin()
1298 info->input_signal_events.ri_up++; in mgsl_isr_io_pin()
1300 info->input_signal_events.ri_down++; in mgsl_isr_io_pin()
1303 if ((info->dsr_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1305 icount->dsr++; in mgsl_isr_io_pin()
1307 info->input_signal_events.dsr_up++; in mgsl_isr_io_pin()
1309 info->input_signal_events.dsr_down++; in mgsl_isr_io_pin()
1312 if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1314 icount->dcd++; in mgsl_isr_io_pin()
1316 info->input_signal_events.dcd_up++; in mgsl_isr_io_pin()
1318 info->input_signal_events.dcd_down++; in mgsl_isr_io_pin()
1320 if (info->netcount) { in mgsl_isr_io_pin()
1322 netif_carrier_on(info->netdev); in mgsl_isr_io_pin()
1324 netif_carrier_off(info->netdev); in mgsl_isr_io_pin()
1330 if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) in mgsl_isr_io_pin()
1332 icount->cts++; in mgsl_isr_io_pin()
1334 info->input_signal_events.cts_up++; in mgsl_isr_io_pin()
1336 info->input_signal_events.cts_down++; in mgsl_isr_io_pin()
1338 wake_up_interruptible(&info->status_event_wait_q); in mgsl_isr_io_pin()
1339 wake_up_interruptible(&info->event_wait_q); in mgsl_isr_io_pin()
1341 if (tty_port_check_carrier(&info->port) && in mgsl_isr_io_pin()
1344 printk("%s CD now %s...", info->device_name, in mgsl_isr_io_pin()
1347 wake_up_interruptible(&info->port.open_wait); in mgsl_isr_io_pin()
1351 if (info->port.tty) in mgsl_isr_io_pin()
1352 tty_hangup(info->port.tty); in mgsl_isr_io_pin()
1356 if (tty_port_cts_enabled(&info->port) && in mgsl_isr_io_pin()
1358 if (info->port.tty->hw_stopped) { in mgsl_isr_io_pin()
1362 info->port.tty->hw_stopped = 0; in mgsl_isr_io_pin()
1364 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_io_pin()
1371 if (info->port.tty) in mgsl_isr_io_pin()
1372 info->port.tty->hw_stopped = 1; in mgsl_isr_io_pin()
1379 info->pending_bh |= BH_STATUS; in mgsl_isr_io_pin()
1386 info->irq_occurred = true; in mgsl_isr_io_pin()
1402 __FILE__,__LINE__,info->xmit_cnt); in mgsl_isr_transmit_data()
1406 if (info->port.tty->stopped || info->port.tty->hw_stopped) { in mgsl_isr_transmit_data()
1411 if ( info->xmit_cnt ) in mgsl_isr_transmit_data()
1414 info->tx_active = false; in mgsl_isr_transmit_data()
1416 if (info->xmit_cnt < WAKEUP_CHARS) in mgsl_isr_transmit_data()
1417 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_data()
1436 struct mgsl_icount *icount = &info->icount; in mgsl_isr_receive_data()
1457 outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY), in mgsl_isr_receive_data()
1458 info->io_base + CCAR ); in mgsl_isr_receive_data()
1459 DataByte = inb( info->io_base + CCAR ); in mgsl_isr_receive_data()
1467 icount->rx++; in mgsl_isr_receive_data()
1476 icount->brk++; in mgsl_isr_receive_data()
1478 icount->parity++; in mgsl_isr_receive_data()
1480 icount->frame++; in mgsl_isr_receive_data()
1485 icount->overrun++; in mgsl_isr_receive_data()
1489 if (status & info->ignore_status_mask) in mgsl_isr_receive_data()
1492 status &= info->read_status_mask; in mgsl_isr_receive_data()
1496 if (info->port.flags & ASYNC_SAK) in mgsl_isr_receive_data()
1497 do_SAK(info->port.tty); in mgsl_isr_receive_data()
1503 tty_insert_flip_char(&info->port, DataByte, flag); in mgsl_isr_receive_data()
1505 /* Overrun is special, since it's in mgsl_isr_receive_data()
1509 work += tty_insert_flip_char(&info->port, 0, TTY_OVERRUN); in mgsl_isr_receive_data()
1514 printk("%s(%d):rx=%d brk=%d parity=%d frame=%d overrun=%d\n", in mgsl_isr_receive_data()
1515 __FILE__,__LINE__,icount->rx,icount->brk, in mgsl_isr_receive_data()
1516 icount->parity,icount->frame,icount->overrun); in mgsl_isr_receive_data()
1520 tty_flip_buffer_push(&info->port); in mgsl_isr_receive_data()
1539 (info->params.mode == MGSL_MODE_HDLC)) { in mgsl_isr_misc()
1549 info->pending_bh |= BH_RECEIVE; in mgsl_isr_misc()
1550 info->rx_rcc_underrun = true; in mgsl_isr_misc()
1603 __FILE__,__LINE__,info->device_name,status); in mgsl_isr_receive_dma()
1605 info->pending_bh |= BH_RECEIVE; in mgsl_isr_receive_dma()
1608 info->rx_overflow = true; in mgsl_isr_receive_dma()
1609 info->icount.buf_overrun++; in mgsl_isr_receive_dma()
1648 __FILE__,__LINE__,info->device_name,status); in mgsl_isr_transmit_dma()
1651 --info->tx_dma_buffers_used; in mgsl_isr_transmit_dma()
1657 /* if call returns non-zero value, we have in mgsl_isr_transmit_dma()
1660 info->pending_bh |= BH_TRANSMIT; in mgsl_isr_transmit_dma()
1685 __FILE__, __LINE__, info->irq_level); in mgsl_interrupt()
1687 spin_lock(&info->irq_spinlock); in mgsl_interrupt()
1696 __FILE__,__LINE__,info->device_name,UscVector,DmaVector); in mgsl_interrupt()
1709 if ( info->isr_overflow ) { in mgsl_interrupt()
1711 __FILE__, __LINE__, info->device_name, info->irq_level); in mgsl_interrupt()
1722 if ( info->pending_bh && !info->bh_running && !info->bh_requested ) { in mgsl_interrupt()
1725 __FILE__,__LINE__,info->device_name); in mgsl_interrupt()
1726 schedule_work(&info->task); in mgsl_interrupt()
1727 info->bh_requested = true; in mgsl_interrupt()
1730 spin_unlock(&info->irq_spinlock); in mgsl_interrupt()
1734 __FILE__, __LINE__, info->irq_level); in mgsl_interrupt()
1751 printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name); in startup()
1753 if (tty_port_initialized(&info->port)) in startup()
1756 if (!info->xmit_buf) { in startup()
1758 info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL); in startup()
1759 if (!info->xmit_buf) { in startup()
1761 __FILE__,__LINE__,info->device_name); in startup()
1762 return -ENOMEM; in startup()
1766 info->pending_bh = 0; in startup()
1768 memset(&info->icount, 0, sizeof(info->icount)); in startup()
1770 timer_setup(&info->tx_timer, mgsl_tx_timeout, 0); in startup()
1780 if (capable(CAP_SYS_ADMIN) && info->port.tty) in startup()
1781 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
1789 if (info->port.tty) in startup()
1790 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
1792 tty_port_set_initialized(&info->port, 1); in startup()
1808 if (!tty_port_initialized(&info->port)) in shutdown()
1813 __FILE__,__LINE__, info->device_name ); in shutdown()
1817 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
1818 wake_up_interruptible(&info->event_wait_q); in shutdown()
1820 del_timer_sync(&info->tx_timer); in shutdown()
1822 if (info->xmit_buf) { in shutdown()
1823 free_page((unsigned long) info->xmit_buf); in shutdown()
1824 info->xmit_buf = NULL; in shutdown()
1827 spin_lock_irqsave(&info->irq_spinlock,flags); in shutdown()
1845 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
1846 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
1850 spin_unlock_irqrestore(&info->irq_spinlock,flags); in shutdown()
1854 if (info->port.tty) in shutdown()
1855 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
1857 tty_port_set_initialized(&info->port, 0); in shutdown()
1864 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_program_hw()
1868 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_program_hw()
1870 if (info->params.mode == MGSL_MODE_HDLC || in mgsl_program_hw()
1871 info->params.mode == MGSL_MODE_RAW || in mgsl_program_hw()
1872 info->netcount) in mgsl_program_hw()
1879 info->dcd_chkcount = 0; in mgsl_program_hw()
1880 info->cts_chkcount = 0; in mgsl_program_hw()
1881 info->ri_chkcount = 0; in mgsl_program_hw()
1882 info->dsr_chkcount = 0; in mgsl_program_hw()
1888 if (info->netcount || info->port.tty->termios.c_cflag & CREAD) in mgsl_program_hw()
1891 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_program_hw()
1901 if (!info->port.tty) in mgsl_change_params()
1906 __FILE__,__LINE__, info->device_name ); in mgsl_change_params()
1908 cflag = info->port.tty->termios.c_cflag; in mgsl_change_params()
1913 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in mgsl_change_params()
1915 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in mgsl_change_params()
1920 case CS5: info->params.data_bits = 5; break; in mgsl_change_params()
1921 case CS6: info->params.data_bits = 6; break; in mgsl_change_params()
1922 case CS7: info->params.data_bits = 7; break; in mgsl_change_params()
1923 case CS8: info->params.data_bits = 8; break; in mgsl_change_params()
1925 default: info->params.data_bits = 7; break; in mgsl_change_params()
1929 info->params.stop_bits = 2; in mgsl_change_params()
1931 info->params.stop_bits = 1; in mgsl_change_params()
1933 info->params.parity = ASYNC_PARITY_NONE; in mgsl_change_params()
1936 info->params.parity = ASYNC_PARITY_ODD; in mgsl_change_params()
1938 info->params.parity = ASYNC_PARITY_EVEN; in mgsl_change_params()
1941 info->params.parity = ASYNC_PARITY_SPACE; in mgsl_change_params()
1948 bits_per_char = info->params.data_bits + in mgsl_change_params()
1949 info->params.stop_bits + 1; in mgsl_change_params()
1955 if (info->params.data_rate <= 460800) in mgsl_change_params()
1956 info->params.data_rate = tty_get_baud_rate(info->port.tty); in mgsl_change_params()
1958 if ( info->params.data_rate ) { in mgsl_change_params()
1959 info->timeout = (32*HZ*bits_per_char) / in mgsl_change_params()
1960 info->params.data_rate; in mgsl_change_params()
1962 info->timeout += HZ/50; /* Add .02 seconds of slop */ in mgsl_change_params()
1964 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in mgsl_change_params()
1965 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in mgsl_change_params()
1969 info->read_status_mask = RXSTATUS_OVERRUN; in mgsl_change_params()
1970 if (I_INPCK(info->port.tty)) in mgsl_change_params()
1971 info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; in mgsl_change_params()
1972 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in mgsl_change_params()
1973 info->read_status_mask |= RXSTATUS_BREAK_RECEIVED; in mgsl_change_params()
1975 if (I_IGNPAR(info->port.tty)) in mgsl_change_params()
1976 info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; in mgsl_change_params()
1977 if (I_IGNBRK(info->port.tty)) { in mgsl_change_params()
1978 info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED; in mgsl_change_params()
1982 if (I_IGNPAR(info->port.tty)) in mgsl_change_params()
1983 info->ignore_status_mask |= RXSTATUS_OVERRUN; in mgsl_change_params()
2001 struct mgsl_struct *info = tty->driver_data; in mgsl_put_char()
2007 __FILE__, __LINE__, ch, info->device_name); in mgsl_put_char()
2010 if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char")) in mgsl_put_char()
2013 if (!info->xmit_buf) in mgsl_put_char()
2016 spin_lock_irqsave(&info->irq_spinlock, flags); in mgsl_put_char()
2018 if ((info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active) { in mgsl_put_char()
2019 if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) { in mgsl_put_char()
2020 info->xmit_buf[info->xmit_head++] = ch; in mgsl_put_char()
2021 info->xmit_head &= SERIAL_XMIT_SIZE-1; in mgsl_put_char()
2022 info->xmit_cnt++; in mgsl_put_char()
2026 spin_unlock_irqrestore(&info->irq_spinlock, flags); in mgsl_put_char()
2041 struct mgsl_struct *info = tty->driver_data; in mgsl_flush_chars()
2046 __FILE__,__LINE__,info->device_name,info->xmit_cnt); in mgsl_flush_chars()
2048 if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_chars")) in mgsl_flush_chars()
2051 if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || in mgsl_flush_chars()
2052 !info->xmit_buf) in mgsl_flush_chars()
2057 __FILE__,__LINE__,info->device_name ); in mgsl_flush_chars()
2059 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_flush_chars()
2061 if (!info->tx_active) { in mgsl_flush_chars()
2062 if ( (info->params.mode == MGSL_MODE_HDLC || in mgsl_flush_chars()
2063 info->params.mode == MGSL_MODE_RAW) && info->xmit_cnt ) { in mgsl_flush_chars()
2068 info->xmit_buf,info->xmit_cnt); in mgsl_flush_chars()
2073 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_flush_chars()
2093 struct mgsl_struct *info = tty->driver_data; in mgsl_write()
2098 __FILE__,__LINE__,info->device_name,count); in mgsl_write()
2100 if (mgsl_paranoia_check(info, tty->name, "mgsl_write")) in mgsl_write()
2103 if (!info->xmit_buf) in mgsl_write()
2106 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_write()
2107 info->params.mode == MGSL_MODE_RAW ) { in mgsl_write()
2109 if (info->tx_active) { in mgsl_write()
2111 if ( info->params.mode == MGSL_MODE_HDLC ) { in mgsl_write()
2115 /* transmitter is actively sending data - in mgsl_write()
2120 if (info->tx_holding_count >= info->num_tx_holding_buffers ) { in mgsl_write()
2133 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2135 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2143 if ( (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) && in mgsl_write()
2150 if ( info->xmit_cnt ) { in mgsl_write()
2158 info->xmit_buf,info->xmit_cnt); in mgsl_write()
2161 __FILE__,__LINE__,info->device_name); in mgsl_write()
2165 __FILE__,__LINE__,info->device_name); in mgsl_write()
2167 info->xmit_cnt = count; in mgsl_write()
2172 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2174 min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1, in mgsl_write()
2175 SERIAL_XMIT_SIZE - info->xmit_head)); in mgsl_write()
2177 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2180 memcpy(info->xmit_buf + info->xmit_head, buf, c); in mgsl_write()
2181 info->xmit_head = ((info->xmit_head + c) & in mgsl_write()
2182 (SERIAL_XMIT_SIZE-1)); in mgsl_write()
2183 info->xmit_cnt += c; in mgsl_write()
2184 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2186 count -= c; in mgsl_write()
2191 if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) { in mgsl_write()
2192 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_write()
2193 if (!info->tx_active) in mgsl_write()
2195 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_write()
2200 __FILE__,__LINE__,info->device_name,ret); in mgsl_write()
2215 struct mgsl_struct *info = tty->driver_data; in mgsl_write_room()
2218 if (mgsl_paranoia_check(info, tty->name, "mgsl_write_room")) in mgsl_write_room()
2220 ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1; in mgsl_write_room()
2226 __FILE__,__LINE__, info->device_name,ret ); in mgsl_write_room()
2228 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_write_room()
2229 info->params.mode == MGSL_MODE_RAW ) { in mgsl_write_room()
2231 if ( info->tx_active ) in mgsl_write_room()
2250 struct mgsl_struct *info = tty->driver_data; in mgsl_chars_in_buffer()
2254 __FILE__,__LINE__, info->device_name ); in mgsl_chars_in_buffer()
2256 if (mgsl_paranoia_check(info, tty->name, "mgsl_chars_in_buffer")) in mgsl_chars_in_buffer()
2261 __FILE__,__LINE__, info->device_name,info->xmit_cnt ); in mgsl_chars_in_buffer()
2263 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_chars_in_buffer()
2264 info->params.mode == MGSL_MODE_RAW ) { in mgsl_chars_in_buffer()
2266 if ( info->tx_active ) in mgsl_chars_in_buffer()
2267 return info->max_frame_size; in mgsl_chars_in_buffer()
2272 return info->xmit_cnt; in mgsl_chars_in_buffer()
2284 struct mgsl_struct *info = tty->driver_data; in mgsl_flush_buffer()
2289 __FILE__,__LINE__, info->device_name ); in mgsl_flush_buffer()
2291 if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_buffer")) in mgsl_flush_buffer()
2294 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_flush_buffer()
2295 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_flush_buffer()
2296 del_timer(&info->tx_timer); in mgsl_flush_buffer()
2297 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_flush_buffer()
2304 * Send a high-priority XON/XOFF character
2312 struct mgsl_struct *info = tty->driver_data; in mgsl_send_xchar()
2317 __FILE__,__LINE__, info->device_name, ch ); in mgsl_send_xchar()
2319 if (mgsl_paranoia_check(info, tty->name, "mgsl_send_xchar")) in mgsl_send_xchar()
2322 info->x_char = ch; in mgsl_send_xchar()
2325 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_send_xchar()
2326 if (!info->tx_enabled) in mgsl_send_xchar()
2328 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_send_xchar()
2334 * Signal remote device to throttle send data (our receive data)
2341 struct mgsl_struct *info = tty->driver_data; in mgsl_throttle()
2346 __FILE__,__LINE__, info->device_name ); in mgsl_throttle()
2348 if (mgsl_paranoia_check(info, tty->name, "mgsl_throttle")) in mgsl_throttle()
2355 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_throttle()
2356 info->serial_signals &= ~SerialSignal_RTS; in mgsl_throttle()
2358 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_throttle()
2371 struct mgsl_struct *info = tty->driver_data; in mgsl_unthrottle()
2376 __FILE__,__LINE__, info->device_name ); in mgsl_unthrottle()
2378 if (mgsl_paranoia_check(info, tty->name, "mgsl_unthrottle")) in mgsl_unthrottle()
2382 if (info->x_char) in mgsl_unthrottle()
2383 info->x_char = 0; in mgsl_unthrottle()
2389 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_unthrottle()
2390 info->serial_signals |= SerialSignal_RTS; in mgsl_unthrottle()
2392 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_unthrottle()
2412 __FILE__,__LINE__, info->device_name); in mgsl_get_stats()
2415 memset(&info->icount, 0, sizeof(info->icount)); in mgsl_get_stats()
2417 mutex_lock(&info->port.mutex); in mgsl_get_stats()
2418 COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount)); in mgsl_get_stats()
2419 mutex_unlock(&info->port.mutex); in mgsl_get_stats()
2421 return -EFAULT; in mgsl_get_stats()
2442 __FILE__,__LINE__, info->device_name); in mgsl_get_params()
2444 mutex_lock(&info->port.mutex); in mgsl_get_params()
2445 COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS)); in mgsl_get_params()
2446 mutex_unlock(&info->port.mutex); in mgsl_get_params()
2450 __FILE__,__LINE__,info->device_name); in mgsl_get_params()
2451 return -EFAULT; in mgsl_get_params()
2477 info->device_name ); in mgsl_set_params()
2482 __FILE__,__LINE__,info->device_name); in mgsl_set_params()
2483 return -EFAULT; in mgsl_set_params()
2486 mutex_lock(&info->port.mutex); in mgsl_set_params()
2487 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_params()
2488 memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS)); in mgsl_set_params()
2489 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_params()
2492 mutex_unlock(&info->port.mutex); in mgsl_set_params()
2513 __FILE__,__LINE__, info->device_name, info->idle_mode); in mgsl_get_txidle()
2515 COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int)); in mgsl_get_txidle()
2519 __FILE__,__LINE__,info->device_name); in mgsl_get_txidle()
2520 return -EFAULT; in mgsl_get_txidle()
2540 info->device_name, idle_mode ); in mgsl_set_txidle()
2542 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_txidle()
2543 info->idle_mode = idle_mode; in mgsl_set_txidle()
2545 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_txidle()
2567 info->device_name, enable); in mgsl_txenable()
2569 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_txenable()
2571 if ( !info->tx_enabled ) { in mgsl_txenable()
2574 /*-------------------------------------------------- in mgsl_txenable()
2580 *--------------------------------------------------*/ in mgsl_txenable()
2581 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_txenable()
2585 if ( info->tx_enabled ) in mgsl_txenable()
2588 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_txenable()
2604 info->device_name); in mgsl_txabort()
2606 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_txabort()
2607 if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC ) in mgsl_txabort()
2609 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_txabort()
2614 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_txabort()
2631 info->device_name, enable); in mgsl_rxenable()
2633 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_rxenable()
2635 if ( !info->rx_enabled ) in mgsl_rxenable()
2638 if ( info->rx_enabled ) in mgsl_rxenable()
2641 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_rxenable()
2667 return -EFAULT; in mgsl_wait_event()
2672 info->device_name, mask); in mgsl_wait_event()
2674 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2678 s = info->serial_signals; in mgsl_wait_event()
2685 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2690 cprev = info->icount; in mgsl_wait_event()
2691 oldsigs = info->input_signal_events; in mgsl_wait_event()
2704 add_wait_queue(&info->event_wait_q, &wait); in mgsl_wait_event()
2706 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2712 rc = -ERESTARTSYS; in mgsl_wait_event()
2717 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2718 cnow = info->icount; in mgsl_wait_event()
2719 newsigs = info->input_signal_events; in mgsl_wait_event()
2721 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2734 rc = -EIO; in mgsl_wait_event()
2756 remove_wait_queue(&info->event_wait_q, &wait); in mgsl_wait_event()
2760 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_wait_event()
2761 if (!waitqueue_active(&info->event_wait_q)) { in mgsl_wait_event()
2766 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_wait_event()
2784 spin_lock_irqsave(&info->irq_spinlock,flags); in modem_input_wait()
2785 cprev = info->icount; in modem_input_wait()
2786 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
2788 spin_unlock_irqrestore(&info->irq_spinlock,flags); in modem_input_wait()
2793 rc = -ERESTARTSYS; in modem_input_wait()
2798 spin_lock_irqsave(&info->irq_spinlock,flags); in modem_input_wait()
2799 cnow = info->icount; in modem_input_wait()
2801 spin_unlock_irqrestore(&info->irq_spinlock,flags); in modem_input_wait()
2806 rc = -EIO; in modem_input_wait()
2821 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
2830 struct mgsl_struct *info = tty->driver_data; in tiocmget()
2834 spin_lock_irqsave(&info->irq_spinlock,flags); in tiocmget()
2836 spin_unlock_irqrestore(&info->irq_spinlock,flags); in tiocmget()
2838 result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
2839 ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
2840 ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
2841 ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
2842 ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
2843 ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
2847 __FILE__,__LINE__, info->device_name, result ); in tiocmget()
2856 struct mgsl_struct *info = tty->driver_data; in tiocmset()
2861 __FILE__,__LINE__,info->device_name, set, clear); in tiocmset()
2864 info->serial_signals |= SerialSignal_RTS; in tiocmset()
2866 info->serial_signals |= SerialSignal_DTR; in tiocmset()
2868 info->serial_signals &= ~SerialSignal_RTS; in tiocmset()
2870 info->serial_signals &= ~SerialSignal_DTR; in tiocmset()
2872 spin_lock_irqsave(&info->irq_spinlock,flags); in tiocmset()
2874 spin_unlock_irqrestore(&info->irq_spinlock,flags); in tiocmset()
2882 * break_state -1=set break condition, 0=clear
2887 struct mgsl_struct * info = tty->driver_data; in mgsl_break()
2892 __FILE__,__LINE__, info->device_name, break_state); in mgsl_break()
2894 if (mgsl_paranoia_check(info, tty->name, "mgsl_break")) in mgsl_break()
2895 return -EINVAL; in mgsl_break()
2897 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_break()
2898 if (break_state == -1) in mgsl_break()
2902 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_break()
2910 * NB: both 1->0 and 0->1 transitions are counted except for
2911 * RI where only 0->1 is counted.
2917 struct mgsl_struct * info = tty->driver_data; in msgl_get_icount()
2921 spin_lock_irqsave(&info->irq_spinlock,flags); in msgl_get_icount()
2922 cnow = info->icount; in msgl_get_icount()
2923 spin_unlock_irqrestore(&info->irq_spinlock,flags); in msgl_get_icount()
2925 icount->cts = cnow.cts; in msgl_get_icount()
2926 icount->dsr = cnow.dsr; in msgl_get_icount()
2927 icount->rng = cnow.rng; in msgl_get_icount()
2928 icount->dcd = cnow.dcd; in msgl_get_icount()
2929 icount->rx = cnow.rx; in msgl_get_icount()
2930 icount->tx = cnow.tx; in msgl_get_icount()
2931 icount->frame = cnow.frame; in msgl_get_icount()
2932 icount->overrun = cnow.overrun; in msgl_get_icount()
2933 icount->parity = cnow.parity; in msgl_get_icount()
2934 icount->brk = cnow.brk; in msgl_get_icount()
2935 icount->buf_overrun = cnow.buf_overrun; in msgl_get_icount()
2952 struct mgsl_struct * info = tty->driver_data; in mgsl_ioctl()
2956 info->device_name, cmd ); in mgsl_ioctl()
2958 if (mgsl_paranoia_check(info, tty->name, "mgsl_ioctl")) in mgsl_ioctl()
2959 return -ENODEV; in mgsl_ioctl()
2963 return -EIO; in mgsl_ioctl()
3001 return -ENOIOCTLCMD; in mgsl_ioctl_common()
3019 struct mgsl_struct *info = tty->driver_data; in mgsl_set_termios()
3024 tty->driver->name ); in mgsl_set_termios()
3029 if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { in mgsl_set_termios()
3030 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in mgsl_set_termios()
3031 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_termios()
3033 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_termios()
3037 if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) { in mgsl_set_termios()
3038 info->serial_signals |= SerialSignal_DTR; in mgsl_set_termios()
3040 info->serial_signals |= SerialSignal_RTS; in mgsl_set_termios()
3041 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_set_termios()
3043 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_set_termios()
3047 if (old_termios->c_cflag & CRTSCTS && !C_CRTSCTS(tty)) { in mgsl_set_termios()
3048 tty->hw_stopped = 0; in mgsl_set_termios()
3068 struct mgsl_struct * info = tty->driver_data; in mgsl_close()
3070 if (mgsl_paranoia_check(info, tty->name, "mgsl_close")) in mgsl_close()
3075 __FILE__,__LINE__, info->device_name, info->port.count); in mgsl_close()
3077 if (tty_port_close_start(&info->port, tty, filp) == 0) in mgsl_close()
3080 mutex_lock(&info->port.mutex); in mgsl_close()
3081 if (tty_port_initialized(&info->port)) in mgsl_close()
3082 mgsl_wait_until_sent(tty, info->timeout); in mgsl_close()
3086 mutex_unlock(&info->port.mutex); in mgsl_close()
3088 tty_port_close_end(&info->port, tty); in mgsl_close()
3089 info->port.tty = NULL; in mgsl_close()
3093 tty->driver->name, info->port.count); in mgsl_close()
3110 struct mgsl_struct * info = tty->driver_data; in mgsl_wait_until_sent()
3118 __FILE__,__LINE__, info->device_name ); in mgsl_wait_until_sent()
3120 if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent")) in mgsl_wait_until_sent()
3123 if (!tty_port_initialized(&info->port)) in mgsl_wait_until_sent()
3131 * Note: use tight timings here to satisfy the NIST-PCTS. in mgsl_wait_until_sent()
3134 if ( info->params.data_rate ) { in mgsl_wait_until_sent()
3135 char_time = info->timeout/(32 * 5); in mgsl_wait_until_sent()
3144 if ( info->params.mode == MGSL_MODE_HDLC || in mgsl_wait_until_sent()
3145 info->params.mode == MGSL_MODE_RAW ) { in mgsl_wait_until_sent()
3146 while (info->tx_active) { in mgsl_wait_until_sent()
3155 info->tx_enabled) { in mgsl_wait_until_sent()
3167 __FILE__,__LINE__, info->device_name ); in mgsl_wait_until_sent()
3181 struct mgsl_struct * info = tty->driver_data; in mgsl_hangup()
3185 __FILE__,__LINE__, info->device_name ); in mgsl_hangup()
3187 if (mgsl_paranoia_check(info, tty->name, "mgsl_hangup")) in mgsl_hangup()
3193 info->port.count = 0; in mgsl_hangup()
3194 tty_port_set_active(&info->port, 0); in mgsl_hangup()
3195 info->port.tty = NULL; in mgsl_hangup()
3197 wake_up_interruptible(&info->port.open_wait); in mgsl_hangup()
3212 spin_lock_irqsave(&info->irq_spinlock, flags); in carrier_raised()
3214 spin_unlock_irqrestore(&info->irq_spinlock, flags); in carrier_raised()
3215 return (info->serial_signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3223 spin_lock_irqsave(&info->irq_spinlock,flags); in dtr_rts()
3225 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3227 info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3229 spin_unlock_irqrestore(&info->irq_spinlock,flags); in dtr_rts()
3254 struct tty_port *port = &info->port; in block_til_ready()
3258 __FILE__,__LINE__, tty->driver->name ); in block_til_ready()
3260 if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { in block_til_ready()
3271 * this loop, port->count is dropped by one, so that in block_til_ready()
3277 add_wait_queue(&port->open_wait, &wait); in block_til_ready()
3281 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3283 spin_lock_irqsave(&info->irq_spinlock, flags); in block_til_ready()
3284 port->count--; in block_til_ready()
3285 spin_unlock_irqrestore(&info->irq_spinlock, flags); in block_til_ready()
3286 port->blocked_open++; in block_til_ready()
3295 retval = (port->flags & ASYNC_HUP_NOTIFY) ? in block_til_ready()
3296 -EAGAIN : -ERESTARTSYS; in block_til_ready()
3300 dcd = tty_port_carrier_raised(&info->port); in block_til_ready()
3305 retval = -ERESTARTSYS; in block_til_ready()
3311 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3319 remove_wait_queue(&port->open_wait, &wait); in block_til_ready()
3323 port->count++; in block_til_ready()
3324 port->blocked_open--; in block_til_ready()
3328 __FILE__,__LINE__, tty->driver->name, port->count ); in block_til_ready()
3340 int line = tty->index; in mgsl_install()
3346 return -ENODEV; in mgsl_install()
3351 while (info && info->line != line) in mgsl_install()
3352 info = info->next_device; in mgsl_install()
3353 if (mgsl_paranoia_check(info, tty->name, "mgsl_open")) in mgsl_install()
3354 return -ENODEV; in mgsl_install()
3355 tty->driver_data = info; in mgsl_install()
3357 return tty_port_install(&info->port, driver, tty); in mgsl_install()
3363 * Perform serial-specific initialization for the tty structure.
3372 struct mgsl_struct *info = tty->driver_data; in mgsl_open()
3376 info->port.tty = tty; in mgsl_open()
3380 __FILE__,__LINE__,tty->driver->name, info->port.count); in mgsl_open()
3382 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in mgsl_open()
3384 spin_lock_irqsave(&info->netlock, flags); in mgsl_open()
3385 if (info->netcount) { in mgsl_open()
3386 retval = -EBUSY; in mgsl_open()
3387 spin_unlock_irqrestore(&info->netlock, flags); in mgsl_open()
3390 info->port.count++; in mgsl_open()
3391 spin_unlock_irqrestore(&info->netlock, flags); in mgsl_open()
3393 if (info->port.count == 1) { in mgsl_open()
3404 __FILE__,__LINE__, info->device_name, retval); in mgsl_open()
3410 __FILE__,__LINE__, info->device_name); in mgsl_open()
3415 if (tty->count == 1) in mgsl_open()
3416 info->port.tty = NULL; /* tty layer will release tty struct */ in mgsl_open()
3417 if(info->port.count) in mgsl_open()
3418 info->port.count--; in mgsl_open()
3435 info->device_name, info->io_base, info->irq_level, in line_info()
3436 info->phys_memory_base, info->phys_lcr_base); in line_info()
3439 spin_lock_irqsave(&info->irq_spinlock,flags); in line_info()
3441 spin_unlock_irqrestore(&info->irq_spinlock,flags); in line_info()
3445 if (info->serial_signals & SerialSignal_RTS) in line_info()
3447 if (info->serial_signals & SerialSignal_CTS) in line_info()
3449 if (info->serial_signals & SerialSignal_DTR) in line_info()
3451 if (info->serial_signals & SerialSignal_DSR) in line_info()
3453 if (info->serial_signals & SerialSignal_DCD) in line_info()
3455 if (info->serial_signals & SerialSignal_RI) in line_info()
3458 if (info->params.mode == MGSL_MODE_HDLC || in line_info()
3459 info->params.mode == MGSL_MODE_RAW ) { in line_info()
3461 info->icount.txok, info->icount.rxok); in line_info()
3462 if (info->icount.txunder) in line_info()
3463 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
3464 if (info->icount.txabort) in line_info()
3465 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
3466 if (info->icount.rxshort) in line_info()
3467 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
3468 if (info->icount.rxlong) in line_info()
3469 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
3470 if (info->icount.rxover) in line_info()
3471 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
3472 if (info->icount.rxcrc) in line_info()
3473 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
3476 info->icount.tx, info->icount.rx); in line_info()
3477 if (info->icount.frame) in line_info()
3478 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
3479 if (info->icount.parity) in line_info()
3480 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
3481 if (info->icount.brk) in line_info()
3482 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
3483 if (info->icount.overrun) in line_info()
3484 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
3491 info->tx_active,info->bh_requested,info->bh_running, in line_info()
3492 info->pending_bh); in line_info()
3494 spin_lock_irqsave(&info->irq_spinlock,flags); in line_info()
3506 u16 Ccar = inw( info->io_base + CCAR ); in line_info()
3511 spin_unlock_irqrestore(&info->irq_spinlock,flags); in line_info()
3524 info = info->next_device; in mgsl_proc_show()
3541 info->last_mem_alloc = 0; in mgsl_allocate_dma_buffers()
3548 BuffersPerFrame = (unsigned short)(info->max_frame_size/DMABUFFERSIZE); in mgsl_allocate_dma_buffers()
3549 if ( info->max_frame_size % DMABUFFERSIZE ) in mgsl_allocate_dma_buffers()
3568 * Of the remaining pages (62-N), determine how many can be used to in mgsl_allocate_dma_buffers()
3571 info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame; in mgsl_allocate_dma_buffers()
3572 info->rx_buffer_count = 62 - info->tx_buffer_count; in mgsl_allocate_dma_buffers()
3576 __FILE__,__LINE__, info->tx_buffer_count,info->rx_buffer_count); in mgsl_allocate_dma_buffers()
3579 mgsl_alloc_frame_memory(info, info->rx_buffer_list, info->rx_buffer_count) < 0 || in mgsl_allocate_dma_buffers()
3580 mgsl_alloc_frame_memory(info, info->tx_buffer_list, info->tx_buffer_count) < 0 || in mgsl_allocate_dma_buffers()
3584 return -ENOMEM; in mgsl_allocate_dma_buffers()
3622 info->buffer_list = info->memory_base + info->last_mem_alloc; in mgsl_alloc_buffer_list_memory()
3623 info->buffer_list_phys = info->last_mem_alloc; in mgsl_alloc_buffer_list_memory()
3624 info->last_mem_alloc += BUFFERLISTSIZE; in mgsl_alloc_buffer_list_memory()
3628 memset( info->buffer_list, 0, BUFFERLISTSIZE ); in mgsl_alloc_buffer_list_memory()
3633 info->rx_buffer_list = (DMABUFFERENTRY *)info->buffer_list; in mgsl_alloc_buffer_list_memory()
3634 info->tx_buffer_list = (DMABUFFERENTRY *)info->buffer_list; in mgsl_alloc_buffer_list_memory()
3635 info->tx_buffer_list += info->rx_buffer_count; in mgsl_alloc_buffer_list_memory()
3646 for ( i = 0; i < info->rx_buffer_count; i++ ) { in mgsl_alloc_buffer_list_memory()
3648 info->rx_buffer_list[i].phys_entry = in mgsl_alloc_buffer_list_memory()
3649 info->buffer_list_phys + (i * sizeof(DMABUFFERENTRY)); in mgsl_alloc_buffer_list_memory()
3654 info->rx_buffer_list[i].link = info->buffer_list_phys; in mgsl_alloc_buffer_list_memory()
3656 if ( i < info->rx_buffer_count - 1 ) in mgsl_alloc_buffer_list_memory()
3657 info->rx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3660 for ( i = 0; i < info->tx_buffer_count; i++ ) { in mgsl_alloc_buffer_list_memory()
3662 info->tx_buffer_list[i].phys_entry = info->buffer_list_phys + in mgsl_alloc_buffer_list_memory()
3663 ((info->rx_buffer_count + i) * sizeof(DMABUFFERENTRY)); in mgsl_alloc_buffer_list_memory()
3668 info->tx_buffer_list[i].link = info->buffer_list_phys + in mgsl_alloc_buffer_list_memory()
3669 info->rx_buffer_count * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3671 if ( i < info->tx_buffer_count - 1 ) in mgsl_alloc_buffer_list_memory()
3672 info->tx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY); in mgsl_alloc_buffer_list_memory()
3690 info->buffer_list = NULL; in mgsl_free_buffer_list_memory()
3691 info->rx_buffer_list = NULL; in mgsl_free_buffer_list_memory()
3692 info->tx_buffer_list = NULL; in mgsl_free_buffer_list_memory()
3710 * Return Value: 0 if success, otherwise -ENOMEM
3719 BufferList[i].virt_addr = info->memory_base + info->last_mem_alloc; in mgsl_alloc_frame_memory()
3720 BufferList[i].phys_addr = info->last_mem_alloc; in mgsl_alloc_frame_memory()
3721 info->last_mem_alloc += DMABUFFERSIZE; in mgsl_alloc_frame_memory()
3765 mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count ); in mgsl_free_dma_buffers()
3766 mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count ); in mgsl_free_dma_buffers()
3782 * Return Value: 0 if success, otherwise -ENOMEM
3786 info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA); in mgsl_alloc_intermediate_rxbuffer_memory()
3787 if ( info->intermediate_rxbuffer == NULL ) in mgsl_alloc_intermediate_rxbuffer_memory()
3788 return -ENOMEM; in mgsl_alloc_intermediate_rxbuffer_memory()
3790 info->flag_buf = kzalloc(info->max_frame_size, GFP_KERNEL); in mgsl_alloc_intermediate_rxbuffer_memory()
3791 if (!info->flag_buf) { in mgsl_alloc_intermediate_rxbuffer_memory()
3792 kfree(info->intermediate_rxbuffer); in mgsl_alloc_intermediate_rxbuffer_memory()
3793 info->intermediate_rxbuffer = NULL; in mgsl_alloc_intermediate_rxbuffer_memory()
3794 return -ENOMEM; in mgsl_alloc_intermediate_rxbuffer_memory()
3812 kfree(info->intermediate_rxbuffer); in mgsl_free_intermediate_rxbuffer_memory()
3813 info->intermediate_rxbuffer = NULL; in mgsl_free_intermediate_rxbuffer_memory()
3814 kfree(info->flag_buf); in mgsl_free_intermediate_rxbuffer_memory()
3815 info->flag_buf = NULL; in mgsl_free_intermediate_rxbuffer_memory()
3830 * Return Value: 0 if success, otherwise -ENOMEM
3838 info->device_name, __FILE__,__LINE__,info->num_tx_holding_buffers); in mgsl_alloc_intermediate_txbuffer_memory()
3840 memset(info->tx_holding_buffers,0,sizeof(info->tx_holding_buffers)); in mgsl_alloc_intermediate_txbuffer_memory()
3842 for ( i=0; i<info->num_tx_holding_buffers; ++i) { in mgsl_alloc_intermediate_txbuffer_memory()
3843 info->tx_holding_buffers[i].buffer = in mgsl_alloc_intermediate_txbuffer_memory()
3844 kmalloc(info->max_frame_size, GFP_KERNEL); in mgsl_alloc_intermediate_txbuffer_memory()
3845 if (info->tx_holding_buffers[i].buffer == NULL) { in mgsl_alloc_intermediate_txbuffer_memory()
3846 for (--i; i >= 0; i--) { in mgsl_alloc_intermediate_txbuffer_memory()
3847 kfree(info->tx_holding_buffers[i].buffer); in mgsl_alloc_intermediate_txbuffer_memory()
3848 info->tx_holding_buffers[i].buffer = NULL; in mgsl_alloc_intermediate_txbuffer_memory()
3850 return -ENOMEM; in mgsl_alloc_intermediate_txbuffer_memory()
3872 for ( i=0; i<info->num_tx_holding_buffers; ++i ) { in mgsl_free_intermediate_txbuffer_memory()
3873 kfree(info->tx_holding_buffers[i].buffer); in mgsl_free_intermediate_txbuffer_memory()
3874 info->tx_holding_buffers[i].buffer = NULL; in mgsl_free_intermediate_txbuffer_memory()
3877 info->get_tx_holding_index = 0; in mgsl_free_intermediate_txbuffer_memory()
3878 info->put_tx_holding_index = 0; in mgsl_free_intermediate_txbuffer_memory()
3879 info->tx_holding_count = 0; in mgsl_free_intermediate_txbuffer_memory()
3902 if ( info->tx_holding_count ) { in load_next_tx_holding_buffer()
3907 &info->tx_holding_buffers[info->get_tx_holding_index]; in load_next_tx_holding_buffer()
3909 int num_needed = ptx->buffer_size / DMABUFFERSIZE; in load_next_tx_holding_buffer()
3910 if ( ptx->buffer_size % DMABUFFERSIZE ) in load_next_tx_holding_buffer()
3914 info->xmit_cnt = ptx->buffer_size; in load_next_tx_holding_buffer()
3915 mgsl_load_tx_dma_buffer(info,ptx->buffer,ptx->buffer_size); in load_next_tx_holding_buffer()
3917 --info->tx_holding_count; in load_next_tx_holding_buffer()
3918 if ( ++info->get_tx_holding_index >= info->num_tx_holding_buffers) in load_next_tx_holding_buffer()
3919 info->get_tx_holding_index=0; in load_next_tx_holding_buffer()
3922 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000)); in load_next_tx_holding_buffer()
3948 if ( info->tx_holding_count >= info->num_tx_holding_buffers ) { in save_tx_buffer_request()
3952 ptx = &info->tx_holding_buffers[info->put_tx_holding_index]; in save_tx_buffer_request()
3953 ptx->buffer_size = BufferSize; in save_tx_buffer_request()
3954 memcpy( ptx->buffer, Buffer, BufferSize); in save_tx_buffer_request()
3956 ++info->tx_holding_count; in save_tx_buffer_request()
3957 if ( ++info->put_tx_holding_index >= info->num_tx_holding_buffers) in save_tx_buffer_request()
3958 info->put_tx_holding_index=0; in save_tx_buffer_request()
3965 if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) { in mgsl_claim_resources()
3967 __FILE__,__LINE__,info->device_name, info->io_base); in mgsl_claim_resources()
3968 return -ENODEV; in mgsl_claim_resources()
3970 info->io_addr_requested = true; in mgsl_claim_resources()
3972 if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags, in mgsl_claim_resources()
3973 info->device_name, info ) < 0 ) { in mgsl_claim_resources()
3975 __FILE__,__LINE__,info->device_name, info->irq_level ); in mgsl_claim_resources()
3978 info->irq_requested = true; in mgsl_claim_resources()
3980 if (request_mem_region(info->phys_memory_base,0x40000,"synclink") == NULL) { in mgsl_claim_resources()
3982 __FILE__,__LINE__,info->device_name, info->phys_memory_base); in mgsl_claim_resources()
3985 info->shared_mem_requested = true; in mgsl_claim_resources()
3986 if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclink") == NULL) { in mgsl_claim_resources()
3988 __FILE__,__LINE__,info->device_name, info->phys_lcr_base + info->lcr_offset); in mgsl_claim_resources()
3991 info->lcr_mem_requested = true; in mgsl_claim_resources()
3993 info->memory_base = ioremap(info->phys_memory_base, 0x40000); in mgsl_claim_resources()
3994 if (!info->memory_base) { in mgsl_claim_resources()
3996 __FILE__,__LINE__,info->device_name, info->phys_memory_base ); in mgsl_claim_resources()
4002 __FILE__,__LINE__,info->device_name, info->phys_memory_base ); in mgsl_claim_resources()
4006 info->lcr_base = ioremap(info->phys_lcr_base, PAGE_SIZE); in mgsl_claim_resources()
4007 if (!info->lcr_base) { in mgsl_claim_resources()
4009 __FILE__,__LINE__,info->device_name, info->phys_lcr_base ); in mgsl_claim_resources()
4012 info->lcr_base += info->lcr_offset; in mgsl_claim_resources()
4016 __FILE__,__LINE__,info->device_name, info->dma_level ); in mgsl_claim_resources()
4023 return -ENODEV; in mgsl_claim_resources()
4031 __FILE__,__LINE__,info->device_name ); in mgsl_release_resources()
4033 if ( info->irq_requested ) { in mgsl_release_resources()
4034 free_irq(info->irq_level, info); in mgsl_release_resources()
4035 info->irq_requested = false; in mgsl_release_resources()
4037 if ( info->dma_requested ) { in mgsl_release_resources()
4038 disable_dma(info->dma_level); in mgsl_release_resources()
4039 free_dma(info->dma_level); in mgsl_release_resources()
4040 info->dma_requested = false; in mgsl_release_resources()
4046 if ( info->io_addr_requested ) { in mgsl_release_resources()
4047 release_region(info->io_base,info->io_addr_size); in mgsl_release_resources()
4048 info->io_addr_requested = false; in mgsl_release_resources()
4050 if ( info->shared_mem_requested ) { in mgsl_release_resources()
4051 release_mem_region(info->phys_memory_base,0x40000); in mgsl_release_resources()
4052 info->shared_mem_requested = false; in mgsl_release_resources()
4054 if ( info->lcr_mem_requested ) { in mgsl_release_resources()
4055 release_mem_region(info->phys_lcr_base + info->lcr_offset,128); in mgsl_release_resources()
4056 info->lcr_mem_requested = false; in mgsl_release_resources()
4058 if (info->memory_base){ in mgsl_release_resources()
4059 iounmap(info->memory_base); in mgsl_release_resources()
4060 info->memory_base = NULL; in mgsl_release_resources()
4062 if (info->lcr_base){ in mgsl_release_resources()
4063 iounmap(info->lcr_base - info->lcr_offset); in mgsl_release_resources()
4064 info->lcr_base = NULL; in mgsl_release_resources()
4069 __FILE__,__LINE__,info->device_name ); in mgsl_release_resources()
4083 info->next_device = NULL; in mgsl_add_device()
4084 info->line = mgsl_device_count; in mgsl_add_device()
4085 sprintf(info->device_name,"ttySL%d",info->line); in mgsl_add_device()
4087 if (info->line < MAX_TOTAL_DEVICES) { in mgsl_add_device()
4088 if (maxframe[info->line]) in mgsl_add_device()
4089 info->max_frame_size = maxframe[info->line]; in mgsl_add_device()
4091 if (txdmabufs[info->line]) { in mgsl_add_device()
4092 info->num_tx_dma_buffers = txdmabufs[info->line]; in mgsl_add_device()
4093 if (info->num_tx_dma_buffers < 1) in mgsl_add_device()
4094 info->num_tx_dma_buffers = 1; in mgsl_add_device()
4097 if (txholdbufs[info->line]) { in mgsl_add_device()
4098 info->num_tx_holding_buffers = txholdbufs[info->line]; in mgsl_add_device()
4099 if (info->num_tx_holding_buffers < 1) in mgsl_add_device()
4100 info->num_tx_holding_buffers = 1; in mgsl_add_device()
4101 else if (info->num_tx_holding_buffers > MAX_TX_HOLDING_BUFFERS) in mgsl_add_device()
4102 info->num_tx_holding_buffers = MAX_TX_HOLDING_BUFFERS; in mgsl_add_device()
4112 while( current_dev->next_device ) in mgsl_add_device()
4113 current_dev = current_dev->next_device; in mgsl_add_device()
4114 current_dev->next_device = info; in mgsl_add_device()
4117 if ( info->max_frame_size < 4096 ) in mgsl_add_device()
4118 info->max_frame_size = 4096; in mgsl_add_device()
4119 else if ( info->max_frame_size > 65535 ) in mgsl_add_device()
4120 info->max_frame_size = 65535; in mgsl_add_device()
4123 info->hw_version + 1, info->device_name, info->io_base, info->irq_level, in mgsl_add_device()
4124 info->phys_memory_base, info->phys_lcr_base, in mgsl_add_device()
4125 info->max_frame_size ); in mgsl_add_device()
4156 tty_port_init(&info->port); in mgsl_allocate_device()
4157 info->port.ops = &mgsl_port_ops; in mgsl_allocate_device()
4158 info->magic = MGSL_MAGIC; in mgsl_allocate_device()
4159 INIT_WORK(&info->task, mgsl_bh_handler); in mgsl_allocate_device()
4160 info->max_frame_size = 4096; in mgsl_allocate_device()
4161 info->port.close_delay = 5*HZ/10; in mgsl_allocate_device()
4162 info->port.closing_wait = 30*HZ; in mgsl_allocate_device()
4163 init_waitqueue_head(&info->status_event_wait_q); in mgsl_allocate_device()
4164 init_waitqueue_head(&info->event_wait_q); in mgsl_allocate_device()
4165 spin_lock_init(&info->irq_spinlock); in mgsl_allocate_device()
4166 spin_lock_init(&info->netlock); in mgsl_allocate_device()
4167 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in mgsl_allocate_device()
4168 info->idle_mode = HDLC_TXIDLE_FLAGS; in mgsl_allocate_device()
4169 info->num_tx_dma_buffers = 1; in mgsl_allocate_device()
4170 info->num_tx_holding_buffers = 0; in mgsl_allocate_device()
4188 .throttle = mgsl_throttle,
4212 return -ENOMEM; in mgsl_init_tty()
4214 serial_driver->driver_name = "synclink"; in mgsl_init_tty()
4215 serial_driver->name = "ttySL"; in mgsl_init_tty()
4216 serial_driver->major = ttymajor; in mgsl_init_tty()
4217 serial_driver->minor_start = 64; in mgsl_init_tty()
4218 serial_driver->type = TTY_DRIVER_TYPE_SERIAL; in mgsl_init_tty()
4219 serial_driver->subtype = SERIAL_TYPE_NORMAL; in mgsl_init_tty()
4220 serial_driver->init_termios = tty_std_termios; in mgsl_init_tty()
4221 serial_driver->init_termios.c_cflag = in mgsl_init_tty()
4223 serial_driver->init_termios.c_ispeed = 9600; in mgsl_init_tty()
4224 serial_driver->init_termios.c_ospeed = 9600; in mgsl_init_tty()
4225 serial_driver->flags = TTY_DRIVER_REAL_RAW; in mgsl_init_tty()
4237 serial_driver->major); in mgsl_init_tty()
4264 info = info->next_device; in synclink_cleanup()
4265 tty_port_destroy(&tmp->port); in synclink_cleanup()
4333 outw( Cmd + info->loopback_bits, info->io_base + CCAR ); in usc_RTCmd()
4336 inw( info->io_base + CCAR ); in usc_RTCmd()
4357 outw( Cmd + info->mbre_bit, info->io_base ); in usc_DmaCmd()
4360 inw( info->io_base ); in usc_DmaCmd()
4367 * Write a 16-bit value to a USC DMA register
4373 * RegValue 16-bit value to write to register
4385 outw( RegAddr + info->mbre_bit, info->io_base ); in usc_OutDmaReg()
4386 outw( RegValue, info->io_base ); in usc_OutDmaReg()
4389 inw( info->io_base ); in usc_OutDmaReg()
4396 * Read a 16-bit value from a DMA register
4405 * The 16-bit value read from register
4413 outw( RegAddr + info->mbre_bit, info->io_base ); in usc_InDmaReg()
4414 return inw( info->io_base ); in usc_InDmaReg()
4422 * Write a 16-bit value to a USC serial channel register
4428 * RegValue 16-bit value to write to register
4437 outw( RegAddr + info->loopback_bits, info->io_base + CCAR ); in usc_OutReg()
4438 outw( RegValue, info->io_base + CCAR ); in usc_OutReg()
4441 inw( info->io_base + CCAR ); in usc_OutReg()
4448 * Reads a 16-bit value from a USC serial channel register
4457 * 16-bit value read from register
4461 outw( RegAddr + info->loopback_bits, info->io_base + CCAR ); in usc_InReg()
4462 return inw( info->io_base + CCAR ); in usc_InReg()
4479 * determine if the IUSC on the adapter is pre-SL1660. If in usc_set_sdlc_mode()
4491 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in usc_set_sdlc_mode()
4507 /*-------------------------------------------------- in usc_set_sdlc_mode()
4510 *--------------------------------------------------*/ in usc_set_sdlc_mode()
4525 if (info->params.mode == MGSL_MODE_RAW) { in usc_set_sdlc_mode()
4536 * CMR <12> 0 Send 8-bit syncs, 1=send Syncs per TxLength in usc_set_sdlc_mode()
4539 * CMR <11-8) 0100 MonoSync in usc_set_sdlc_mode()
4549 if ( info->params.flags & HDLC_FLAG_UNDERRUN_ABORT15 ) in usc_set_sdlc_mode()
4551 else if ( info->params.flags & HDLC_FLAG_UNDERRUN_FLAG ) in usc_set_sdlc_mode()
4553 else if ( info->params.flags & HDLC_FLAG_UNDERRUN_CRC ) in usc_set_sdlc_mode()
4557 if ( info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE ) in usc_set_sdlc_mode()
4561 if ( info->params.mode == MGSL_MODE_HDLC && in usc_set_sdlc_mode()
4562 (info->params.flags & HDLC_FLAG_SHARE_ZERO) ) in usc_set_sdlc_mode()
4565 if ( info->params.addr_filter != 0xff ) in usc_set_sdlc_mode()
4568 usc_OutReg( info, RSR, info->params.addr_filter ); in usc_set_sdlc_mode()
4573 info->cmr_value = RegValue; in usc_set_sdlc_mode()
4592 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
4602 if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT ) in usc_set_sdlc_mode()
4604 else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT ) in usc_set_sdlc_mode()
4629 * <1> 1 Rx Overrun IA in usc_set_sdlc_mode()
4664 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
4674 if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT ) in usc_set_sdlc_mode()
4676 else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT ) in usc_set_sdlc_mode()
4723 info->tcsr_value = 0; in usc_set_sdlc_mode()
4726 info->tcsr_value |= TCSR_UNDERWAIT; in usc_set_sdlc_mode()
4728 usc_OutReg( info, TCSR, info->tcsr_value ); in usc_set_sdlc_mode()
4745 if ( info->params.flags & HDLC_FLAG_RXC_DPLL ) in usc_set_sdlc_mode()
4747 else if ( info->params.flags & HDLC_FLAG_RXC_BRG ) in usc_set_sdlc_mode()
4749 else if ( info->params.flags & HDLC_FLAG_RXC_TXCPIN) in usc_set_sdlc_mode()
4754 if ( info->params.flags & HDLC_FLAG_TXC_DPLL ) in usc_set_sdlc_mode()
4756 else if ( info->params.flags & HDLC_FLAG_TXC_BRG ) in usc_set_sdlc_mode()
4758 else if ( info->params.flags & HDLC_FLAG_TXC_RXCPIN) in usc_set_sdlc_mode()
4783 if ( info->params.flags & (HDLC_FLAG_RXC_DPLL | HDLC_FLAG_TXC_DPLL) ) { in usc_set_sdlc_mode()
4793 if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) { in usc_set_sdlc_mode()
4797 else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) { in usc_set_sdlc_mode()
4804 /* Tc = (Xtal/Speed) - 1 */ in usc_set_sdlc_mode()
4810 /*-------------------------------------------------- in usc_set_sdlc_mode()
4817 *--------------------------------------------------*/ in usc_set_sdlc_mode()
4818 if ( info->params.clock_speed ) in usc_set_sdlc_mode()
4820 Tc = (u16)((XtalSpeed/DpllDivisor)/info->params.clock_speed); in usc_set_sdlc_mode()
4821 if ( !((((XtalSpeed/DpllDivisor) % info->params.clock_speed) * 2) in usc_set_sdlc_mode()
4822 / info->params.clock_speed) ) in usc_set_sdlc_mode()
4823 Tc--; in usc_set_sdlc_mode()
4826 Tc = -1; in usc_set_sdlc_mode()
4829 /* Write 16-bit Time Constant for BRG1 */ in usc_set_sdlc_mode()
4834 switch ( info->params.encoding ) { in usc_set_sdlc_mode()
4870 if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) { in usc_set_sdlc_mode()
4886 info->mbre_bit = 0; in usc_set_sdlc_mode()
4887 outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */ in usc_set_sdlc_mode()
4889 info->mbre_bit = BIT8; in usc_set_sdlc_mode()
4890 outw( BIT8, info->io_base ); /* set Master Bus Enable (DCAR) */ in usc_set_sdlc_mode()
4905 * <5> 0 7 CLK - Minimum Bus Re-request Interval in usc_set_sdlc_mode()
4970 * <15..14> 10 Use 32-bit Tx Control Blocks (TCBs) in usc_set_sdlc_mode()
4975 * <7..6> 10 Use 32-bit Rx status Blocks (RSBs) in usc_set_sdlc_mode()
4984 switch ( info->params.preamble_length ) { in usc_set_sdlc_mode()
4990 switch ( info->params.preamble ) { in usc_set_sdlc_mode()
5046 /* Write 16-bit Time Constant for BRG0 */ in usc_enable_loopback()
5048 if (info->params.clock_speed) { in usc_enable_loopback()
5049 usc_OutReg(info, TC0R, (u16)((11059200/info->params.clock_speed)-1)); in usc_enable_loopback()
5061 info->loopback_bits = 0x300; in usc_enable_loopback()
5062 outw( 0x0300, info->io_base + CCAR ); in usc_enable_loopback()
5068 info->loopback_bits = 0; in usc_enable_loopback()
5069 outw( 0,info->io_base + CCAR ); in usc_enable_loopback()
5095 /* Tc = (Xtal/Speed) - 1 */ in usc_enable_aux_clock()
5104 Tc--; in usc_enable_aux_clock()
5106 /* Write 16-bit Time Constant for BRG0 */ in usc_enable_aux_clock()
5130 * This function processes a receive overrun by resetting the
5149 DMABUFFERENTRY *buffer_list = info->rx_buffer_list; in usc_process_rxoverrun_sync()
5159 frame_start_index = start_index = end_index = info->current_rx_buffer; in usc_process_rxoverrun_sync()
5164 /* (status set to non-zero). */ in usc_process_rxoverrun_sync()
5192 if ( end_index == info->rx_buffer_count ) in usc_process_rxoverrun_sync()
5211 /* as a result of the receiver overrun. */ in usc_process_rxoverrun_sync()
5221 *((unsigned long *)&(info->rx_buffer_list[start_index++].count)) = DMABUFFERSIZE; in usc_process_rxoverrun_sync()
5224 if ( start_index == info->rx_buffer_count ) in usc_process_rxoverrun_sync()
5244 phys_addr = info->rx_buffer_list[frame_start_index].phys_entry; in usc_process_rxoverrun_sync()
5258 if ( info->params.flags & HDLC_FLAG_AUTO_DCD ) in usc_process_rxoverrun_sync()
5283 __FILE__,__LINE__, info->device_name ); in usc_stop_receiver()
5299 info->rx_enabled = false; in usc_stop_receiver()
5300 info->rx_overflow = false; in usc_stop_receiver()
5301 info->rx_rcc_underrun = false; in usc_stop_receiver()
5318 __FILE__,__LINE__, info->device_name ); in usc_start_receiver()
5326 if ( info->params.mode == MGSL_MODE_HDLC || in usc_start_receiver()
5327 info->params.mode == MGSL_MODE_RAW ) { in usc_start_receiver()
5333 phys_addr = info->rx_buffer_list[0].phys_entry; in usc_start_receiver()
5347 if ( info->params.flags & HDLC_FLAG_AUTO_DCD ) in usc_start_receiver()
5364 info->rx_enabled = true; in usc_start_receiver()
5383 __FILE__,__LINE__, info->device_name ); in usc_start_transmitter()
5385 if ( info->xmit_cnt ) { in usc_start_transmitter()
5391 info->drop_rts_on_tx_done = false; in usc_start_transmitter()
5393 if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) { in usc_start_transmitter()
5395 if ( !(info->serial_signals & SerialSignal_RTS) ) { in usc_start_transmitter()
5396 info->serial_signals |= SerialSignal_RTS; in usc_start_transmitter()
5398 info->drop_rts_on_tx_done = true; in usc_start_transmitter()
5403 if ( info->params.mode == MGSL_MODE_ASYNC ) { in usc_start_transmitter()
5404 if ( !info->tx_active ) { in usc_start_transmitter()
5417 FrameSize = info->tx_buffer_list[info->start_tx_dma_buffer].rcc; in usc_start_transmitter()
5423 if ( info->params.mode == MGSL_MODE_RAW ) in usc_start_transmitter()
5424 info->tx_buffer_list[info->start_tx_dma_buffer].rcc = 0; in usc_start_transmitter()
5433 phys_addr = info->tx_buffer_list[info->start_tx_dma_buffer].phys_entry; in usc_start_transmitter()
5441 if ( info->params.mode == MGSL_MODE_RAW && in usc_start_transmitter()
5442 info->num_tx_dma_buffers > 1 ) { in usc_start_transmitter()
5459 mod_timer(&info->tx_timer, jiffies + in usc_start_transmitter()
5462 info->tx_active = true; in usc_start_transmitter()
5465 if ( !info->tx_enabled ) { in usc_start_transmitter()
5466 info->tx_enabled = true; in usc_start_transmitter()
5467 if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) in usc_start_transmitter()
5486 __FILE__,__LINE__, info->device_name ); in usc_stop_transmitter()
5488 del_timer(&info->tx_timer); in usc_stop_transmitter()
5498 info->tx_enabled = false; in usc_stop_transmitter()
5499 info->tx_active = false; in usc_stop_transmitter()
5516 if ( !info->xmit_cnt && !info->x_char ) in usc_load_txfifo()
5524 while( (Fifocount = usc_InReg(info, TICR) >> 8) && info->xmit_cnt ) { in usc_load_txfifo()
5528 if ( (info->xmit_cnt > 1) && (Fifocount > 1) && !info->x_char ) { in usc_load_txfifo()
5529 /* write a 16-bit word from transmit buffer to 16C32 */ in usc_load_txfifo()
5531 TwoBytes[0] = info->xmit_buf[info->xmit_tail++]; in usc_load_txfifo()
5532 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5533 TwoBytes[1] = info->xmit_buf[info->xmit_tail++]; in usc_load_txfifo()
5534 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5536 outw( *((u16 *)TwoBytes), info->io_base + DATAREG); in usc_load_txfifo()
5538 info->xmit_cnt -= 2; in usc_load_txfifo()
5539 info->icount.tx += 2; in usc_load_txfifo()
5543 outw( (inw( info->io_base + CCAR) & 0x0780) | (TDR+LSBONLY), in usc_load_txfifo()
5544 info->io_base + CCAR ); in usc_load_txfifo()
5546 if (info->x_char) { in usc_load_txfifo()
5548 outw( info->x_char,info->io_base + CCAR ); in usc_load_txfifo()
5549 info->x_char = 0; in usc_load_txfifo()
5551 outw( info->xmit_buf[info->xmit_tail++],info->io_base + CCAR ); in usc_load_txfifo()
5552 info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); in usc_load_txfifo()
5553 info->xmit_cnt--; in usc_load_txfifo()
5555 info->icount.tx++; in usc_load_txfifo()
5576 volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50); in usc_reset()
5577 u32 *LCR0BRDR = (u32 *)(info->lcr_base + 0x28); in usc_reset()
5579 info->misc_ctrl_value |= BIT30; in usc_reset()
5580 *MiscCtrl = info->misc_ctrl_value; in usc_reset()
5589 info->misc_ctrl_value &= ~BIT30; in usc_reset()
5590 *MiscCtrl = info->misc_ctrl_value; in usc_reset()
5593 1, // Write Strobe Hold (0-3) in usc_reset()
5594 2, // Write Strobe Delay (0-3) in usc_reset()
5595 2, // Read Strobe Delay (0-3) in usc_reset()
5596 0, // NWDD (Write data-data) (0-3) in usc_reset()
5597 4, // NWAD (Write Addr-data) (0-31) in usc_reset()
5598 0, // NXDA (Read/Write Data-Addr) (0-3) in usc_reset()
5599 0, // NRDD (Read Data-Data) (0-3) in usc_reset()
5600 5 // NRAD (Read Addr-Data) (0-31) in usc_reset()
5603 info->mbre_bit = 0; in usc_reset()
5604 info->loopback_bits = 0; in usc_reset()
5605 info->usc_idle_mode = 0; in usc_reset()
5624 outw( 0x000c,info->io_base + SDPIN ); in usc_reset()
5627 outw( 0,info->io_base ); in usc_reset()
5628 outw( 0,info->io_base + CCAR ); in usc_reset()
5683 outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */ in usc_set_async_mode()
5701 if ( info->params.stop_bits != 1 ) in usc_set_async_mode()
5720 if ( info->params.data_bits != 8 ) in usc_set_async_mode()
5723 if ( info->params.parity != ASYNC_PARITY_NONE ) { in usc_set_async_mode()
5725 if ( info->params.parity != ASYNC_PARITY_ODD ) in usc_set_async_mode()
5751 * <1> 0 Rx Overrun IA in usc_set_async_mode()
5777 if ( info->params.data_bits != 8 ) in usc_set_async_mode()
5780 if ( info->params.parity != ASYNC_PARITY_NONE ) { in usc_set_async_mode()
5782 if ( info->params.parity != ASYNC_PARITY_ODD ) in usc_set_async_mode()
5816 usc_enable_async_clock( info, info->params.data_rate ); in usc_set_async_mode()
5847 if (info->params.loopback) { in usc_set_async_mode()
5848 info->loopback_bits = 0x300; in usc_set_async_mode()
5849 outw(0x0300, info->io_base + CCAR); in usc_set_async_mode()
5871 unsigned long oldmode = info->params.mode; in usc_loopback_frame()
5873 info->params.mode = MGSL_MODE_HDLC; in usc_loopback_frame()
5880 /* Write 16-bit Time Constant for BRG0 */ in usc_loopback_frame()
5885 * <15..14> 00 Don't use 32-bit Tx Control Blocks (TCBs) in usc_loopback_frame()
5888 * <11..10> 00 Preamble Length = 8-Bits in usc_loopback_frame()
5890 * <7..6> 10 Don't use 32-bit Rx status Blocks (RSBs) in usc_loopback_frame()
5911 outw(0,info->io_base + DATAREG); in usc_loopback_frame()
5927 info->params.mode = oldmode; in usc_loopback_frame()
5941 usc_enable_aux_clock(info, info->params.clock_speed); in usc_set_sync_mode()
5943 if (info->params.loopback) in usc_set_sync_mode()
5959 switch( info->idle_mode ){ in usc_set_txidle()
5969 info->usc_idle_mode = usc_idle_mode; in usc_set_txidle()
5971 info->tcsr_value &= ~IDLEMODE_MASK; /* clear idle mode bits */ in usc_set_txidle()
5972 info->tcsr_value += usc_idle_mode; in usc_set_txidle()
5973 usc_OutReg(info, TCSR, info->tcsr_value); in usc_set_txidle()
5982 if ( info->params.mode == MGSL_MODE_RAW ) { in usc_set_txidle()
5984 switch( info->idle_mode ) { in usc_set_txidle()
6021 info->serial_signals &= SerialSignal_RTS | SerialSignal_DTR; in usc_get_serial_signals()
6031 info->serial_signals |= SerialSignal_CTS; in usc_get_serial_signals()
6034 info->serial_signals |= SerialSignal_DCD; in usc_get_serial_signals()
6037 info->serial_signals |= SerialSignal_RI; in usc_get_serial_signals()
6040 info->serial_signals |= SerialSignal_DSR; in usc_get_serial_signals()
6055 unsigned char V24Out = info->serial_signals; in usc_set_serial_signals()
6105 * Write 16-bit Time Constant for BRG0 in usc_enable_async_clock()
6106 * Time Constant = (ClkSpeed / data_rate) - 1 in usc_enable_async_clock()
6110 usc_OutReg( info, TC0R, (u16)((691200/data_rate) - 1) ); in usc_enable_async_clock()
6194 for ( i = 0; i < info->tx_buffer_count; i++ ) { in mgsl_reset_tx_dma_buffers()
6195 *((unsigned long *)&(info->tx_buffer_list[i].count)) = 0; in mgsl_reset_tx_dma_buffers()
6198 info->current_tx_buffer = 0; in mgsl_reset_tx_dma_buffers()
6199 info->start_tx_dma_buffer = 0; in mgsl_reset_tx_dma_buffers()
6200 info->tx_dma_buffers_used = 0; in mgsl_reset_tx_dma_buffers()
6202 info->get_tx_holding_index = 0; in mgsl_reset_tx_dma_buffers()
6203 info->put_tx_holding_index = 0; in mgsl_reset_tx_dma_buffers()
6204 info->tx_holding_count = 0; in mgsl_reset_tx_dma_buffers()
6218 return info->tx_buffer_count - info->tx_dma_buffers_used; in num_free_tx_dma_buffers()
6235 for ( i = 0; i < info->rx_buffer_count; i++ ) { in mgsl_reset_rx_dma_buffers()
6236 *((unsigned long *)&(info->rx_buffer_list[i].count)) = DMABUFFERSIZE; in mgsl_reset_rx_dma_buffers()
6237 // info->rx_buffer_list[i].count = DMABUFFERSIZE; in mgsl_reset_rx_dma_buffers()
6238 // info->rx_buffer_list[i].status = 0; in mgsl_reset_rx_dma_buffers()
6241 info->current_rx_buffer = 0; in mgsl_reset_rx_dma_buffers()
6271 pBufEntry = &(info->rx_buffer_list[Index]); in mgsl_free_rx_frame_buffers()
6279 // pBufEntry->status = 0; in mgsl_free_rx_frame_buffers()
6280 // pBufEntry->count = DMABUFFERSIZE; in mgsl_free_rx_frame_buffers()
6281 *((unsigned long *)&(pBufEntry->count)) = DMABUFFERSIZE; in mgsl_free_rx_frame_buffers()
6285 if ( Index == info->rx_buffer_count ) in mgsl_free_rx_frame_buffers()
6290 info->current_rx_buffer = Index; in mgsl_free_rx_frame_buffers()
6310 struct tty_struct *tty = info->port.tty; in mgsl_get_rx_frame()
6316 * a non-zero status field in the buffer entries. (The status in mgsl_get_rx_frame()
6320 StartIndex = EndIndex = info->current_rx_buffer; in mgsl_get_rx_frame()
6322 while( !info->rx_buffer_list[EndIndex].status ) { in mgsl_get_rx_frame()
6324 * If the count field of the buffer entry is non-zero then in mgsl_get_rx_frame()
6330 if ( info->rx_buffer_list[EndIndex].count ) in mgsl_get_rx_frame()
6335 if ( EndIndex == info->rx_buffer_count ) in mgsl_get_rx_frame()
6345 if ( info->rx_enabled ){ in mgsl_get_rx_frame()
6346 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6348 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6357 status = info->rx_buffer_list[EndIndex].status; in mgsl_get_rx_frame()
6362 info->icount.rxshort++; in mgsl_get_rx_frame()
6364 info->icount.rxabort++; in mgsl_get_rx_frame()
6366 info->icount.rxover++; in mgsl_get_rx_frame()
6368 info->icount.rxcrc++; in mgsl_get_rx_frame()
6369 if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) in mgsl_get_rx_frame()
6375 info->netdev->stats.rx_errors++; in mgsl_get_rx_frame()
6376 info->netdev->stats.rx_frame_errors++; in mgsl_get_rx_frame()
6386 * once for each receive character) minus 2 for the 16-bit CRC. in mgsl_get_rx_frame()
6389 framesize = RCLRVALUE - info->rx_buffer_list[EndIndex].rcc; in mgsl_get_rx_frame()
6392 if ( info->params.crc_type == HDLC_CRC_16_CCITT ) in mgsl_get_rx_frame()
6393 framesize -= 2; in mgsl_get_rx_frame()
6394 else if ( info->params.crc_type == HDLC_CRC_32_CCITT ) in mgsl_get_rx_frame()
6395 framesize -= 4; in mgsl_get_rx_frame()
6400 __FILE__,__LINE__,info->device_name,status,framesize); in mgsl_get_rx_frame()
6403 mgsl_trace_block(info,info->rx_buffer_list[StartIndex].virt_addr, in mgsl_get_rx_frame()
6407 if ( ( (info->params.crc_type & HDLC_CRC_RETURN_EX) && in mgsl_get_rx_frame()
6408 ((framesize+1) > info->max_frame_size) ) || in mgsl_get_rx_frame()
6409 (framesize > info->max_frame_size) ) in mgsl_get_rx_frame()
6410 info->icount.rxlong++; in mgsl_get_rx_frame()
6415 unsigned char *ptmp = info->intermediate_rxbuffer; in mgsl_get_rx_frame()
6418 info->icount.rxok++; in mgsl_get_rx_frame()
6427 pBufEntry = &(info->rx_buffer_list[index]); in mgsl_get_rx_frame()
6428 memcpy( ptmp, pBufEntry->virt_addr, partial_count ); in mgsl_get_rx_frame()
6430 copy_count -= partial_count; in mgsl_get_rx_frame()
6432 if ( ++index == info->rx_buffer_count ) in mgsl_get_rx_frame()
6436 if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) { in mgsl_get_rx_frame()
6444 __FILE__,__LINE__,info->device_name, in mgsl_get_rx_frame()
6449 if (info->netcount) in mgsl_get_rx_frame()
6450 hdlcdev_rx(info,info->intermediate_rxbuffer,framesize); in mgsl_get_rx_frame()
6453 ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize); in mgsl_get_rx_frame()
6463 if ( info->rx_enabled && info->rx_overflow ) { in mgsl_get_rx_frame()
6469 if ( !info->rx_buffer_list[EndIndex].status && in mgsl_get_rx_frame()
6470 info->rx_buffer_list[EndIndex].count ) { in mgsl_get_rx_frame()
6471 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6473 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_rx_frame()
6491 * If DCD goes inactive, the last Rx DMA Buffer will have a non-zero
6508 struct tty_struct *tty = info->port.tty; in mgsl_get_raw_rx_frame()
6520 * non-zero, the USC is still actively using the current buffer. in mgsl_get_raw_rx_frame()
6525 CurrentIndex = NextIndex = info->current_rx_buffer; in mgsl_get_raw_rx_frame()
6527 if ( NextIndex == info->rx_buffer_count ) in mgsl_get_raw_rx_frame()
6530 if ( info->rx_buffer_list[CurrentIndex].status != 0 || in mgsl_get_raw_rx_frame()
6531 (info->rx_buffer_list[CurrentIndex].count == 0 && in mgsl_get_raw_rx_frame()
6532 info->rx_buffer_list[NextIndex].count == 0)) { in mgsl_get_raw_rx_frame()
6534 * Either the status field of this dma buffer is non-zero in mgsl_get_raw_rx_frame()
6536 * buffer is marked as in use -- implying this buffer is complete in mgsl_get_raw_rx_frame()
6540 status = info->rx_buffer_list[CurrentIndex].status; in mgsl_get_raw_rx_frame()
6545 info->icount.rxshort++; in mgsl_get_raw_rx_frame()
6547 info->icount.rxabort++; in mgsl_get_raw_rx_frame()
6549 info->icount.rxover++; in mgsl_get_raw_rx_frame()
6551 info->icount.rxcrc++; in mgsl_get_raw_rx_frame()
6559 * once for each receive character) minus 2 or 4 for the 16-bit in mgsl_get_raw_rx_frame()
6560 * or 32-bit CRC. in mgsl_get_raw_rx_frame()
6565 * If the DMA Buffer Entry's Status field is non-zero, the in mgsl_get_raw_rx_frame()
6569 * entry with a non-zero status. This can occur if the total in mgsl_get_raw_rx_frame()
6574 * frame size. If this happens (non-zero status and zero RCC), in mgsl_get_raw_rx_frame()
6580 * terminated with a non-zero status and the RCC in mgsl_get_raw_rx_frame()
6589 if ( info->rx_buffer_list[CurrentIndex].rcc ) in mgsl_get_raw_rx_frame()
6590 framesize = RCLRVALUE - info->rx_buffer_list[CurrentIndex].rcc; in mgsl_get_raw_rx_frame()
6611 __FILE__,__LINE__,info->device_name,status,framesize); in mgsl_get_raw_rx_frame()
6614 mgsl_trace_block(info,info->rx_buffer_list[CurrentIndex].virt_addr, in mgsl_get_raw_rx_frame()
6621 pBufEntry = &(info->rx_buffer_list[CurrentIndex]); in mgsl_get_raw_rx_frame()
6622 memcpy( info->intermediate_rxbuffer, pBufEntry->virt_addr, framesize); in mgsl_get_raw_rx_frame()
6623 info->icount.rxok++; in mgsl_get_raw_rx_frame()
6625 ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize); in mgsl_get_raw_rx_frame()
6635 if ( info->rx_enabled && info->rx_overflow ) { in mgsl_get_raw_rx_frame()
6641 if ( !info->rx_buffer_list[CurrentIndex].status && in mgsl_get_raw_rx_frame()
6642 info->rx_buffer_list[CurrentIndex].count ) { in mgsl_get_raw_rx_frame()
6643 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_get_raw_rx_frame()
6645 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_get_raw_rx_frame()
6675 if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) { in mgsl_load_tx_dma_buffer()
6679 info->cmr_value |= BIT13; in mgsl_load_tx_dma_buffer()
6686 i = info->current_tx_buffer; in mgsl_load_tx_dma_buffer()
6687 info->start_tx_dma_buffer = i; in mgsl_load_tx_dma_buffer()
6692 info->tx_buffer_list[i].status = info->cmr_value & 0xf000; in mgsl_load_tx_dma_buffer()
6693 info->tx_buffer_list[i].rcc = BufferSize; in mgsl_load_tx_dma_buffer()
6694 info->tx_buffer_list[i].count = BufferSize; in mgsl_load_tx_dma_buffer()
6701 pBufEntry = &info->tx_buffer_list[i++]; in mgsl_load_tx_dma_buffer()
6703 if ( i == info->tx_buffer_count ) in mgsl_load_tx_dma_buffer()
6715 mgsl_load_pci_memory(pBufEntry->virt_addr, Buffer,Copycount); in mgsl_load_tx_dma_buffer()
6717 pBufEntry->count = Copycount; in mgsl_load_tx_dma_buffer()
6721 BufferSize -= Copycount; in mgsl_load_tx_dma_buffer()
6723 ++info->tx_dma_buffers_used; in mgsl_load_tx_dma_buffer()
6727 info->current_tx_buffer = i; in mgsl_load_tx_dma_buffer()
6748 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_register_test()
6784 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_register_test()
6800 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_irq_test()
6808 info->irq_occurred = false; in mgsl_irq_test()
6823 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_irq_test()
6826 while( EndTime-- && !info->irq_occurred ) { in mgsl_irq_test()
6830 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_irq_test()
6832 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_irq_test()
6834 return info->irq_occurred; in mgsl_irq_test()
6861 memcpy(&tmp_params,&info->params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
6863 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
6867 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
6878 * non-destructive to system memory) before we try and write to in mgsl_dma_test()
6897 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
6907 info->tx_buffer_list[0].count = FrameSize; in mgsl_dma_test()
6908 info->tx_buffer_list[0].rcc = FrameSize; in mgsl_dma_test()
6909 info->tx_buffer_list[0].status = 0x4000; in mgsl_dma_test()
6913 TmpPtr = info->tx_buffer_list[0].virt_addr; in mgsl_dma_test()
6920 info->rx_buffer_list[0].status = 0; in mgsl_dma_test()
6921 info->rx_buffer_list[0].count = FrameSize + 4; in mgsl_dma_test()
6925 memset( info->rx_buffer_list[0].virt_addr, 0, FrameSize + 4 ); in mgsl_dma_test()
6930 info->tx_buffer_list[1].count = 0; in mgsl_dma_test()
6931 info->rx_buffer_list[1].count = 0; in mgsl_dma_test()
6938 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
6944 phys_addr = info->rx_buffer_list[0].phys_entry; in mgsl_dma_test()
6955 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
6962 /* Wait 100ms for interrupt. */ in mgsl_dma_test()
6971 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
6973 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
6988 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
6993 usc_OutReg( info, TCLR, (unsigned short)info->tx_buffer_list[0].count ); in mgsl_dma_test()
6998 phys_addr = info->tx_buffer_list[0].phys_entry; in mgsl_dma_test()
7011 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7018 /* Wait 100ms */ in mgsl_dma_test()
7027 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7029 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7037 if ( FifoLevel <= (32 - FrameSize) ) in mgsl_dma_test()
7047 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7053 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7060 /* Wait 100ms */ in mgsl_dma_test()
7065 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7067 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7075 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7077 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7091 /* Wait 100ms */ in mgsl_dma_test()
7095 status=info->rx_buffer_list[0].status; in mgsl_dma_test()
7101 status=info->rx_buffer_list[0].status; in mgsl_dma_test()
7108 status = info->rx_buffer_list[0].status; in mgsl_dma_test()
7114 if ( memcmp( info->tx_buffer_list[0].virt_addr , in mgsl_dma_test()
7115 info->rx_buffer_list[0].virt_addr, FrameSize ) ){ in mgsl_dma_test()
7121 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_dma_test()
7123 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_dma_test()
7126 memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS)); in mgsl_dma_test()
7137 * Return Value: 0 if success, otherwise -ENODEV
7143 __FILE__,__LINE__,info->device_name ); in mgsl_adapter_test()
7146 info->init_error = DiagStatus_AddressFailure; in mgsl_adapter_test()
7148 __FILE__,__LINE__,info->device_name, (unsigned short)(info->io_base) ); in mgsl_adapter_test()
7149 return -ENODEV; in mgsl_adapter_test()
7153 info->init_error = DiagStatus_IrqFailure; in mgsl_adapter_test()
7155 __FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) ); in mgsl_adapter_test()
7156 return -ENODEV; in mgsl_adapter_test()
7160 info->init_error = DiagStatus_DmaFailure; in mgsl_adapter_test()
7162 __FILE__,__LINE__,info->device_name, (unsigned short)(info->dma_level) ); in mgsl_adapter_test()
7163 return -ENODEV; in mgsl_adapter_test()
7168 __FILE__,__LINE__,info->device_name ); in mgsl_adapter_test()
7190 TestAddr = (unsigned long *)info->memory_base; in mgsl_memory_test()
7208 TestAddr = (unsigned long *)info->memory_base; in mgsl_memory_test()
7216 memset( info->memory_base, 0, SHARED_MEM_ADDRESS_SIZE ); in mgsl_memory_test()
7262 /* 16 32-bit writes @ 60ns each = 960ns max latency on local bus */ in mgsl_load_pci_memory()
7286 printk("%s tx data:\n",info->device_name); in mgsl_trace_block()
7288 printk("%s rx data:\n",info->device_name); in mgsl_trace_block()
7309 count -= linecount; in mgsl_trace_block()
7328 __FILE__,__LINE__,info->device_name); in mgsl_tx_timeout()
7329 if(info->tx_active && in mgsl_tx_timeout()
7330 (info->params.mode == MGSL_MODE_HDLC || in mgsl_tx_timeout()
7331 info->params.mode == MGSL_MODE_RAW) ) { in mgsl_tx_timeout()
7332 info->icount.txtimeout++; in mgsl_tx_timeout()
7334 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_tx_timeout()
7335 info->tx_active = false; in mgsl_tx_timeout()
7336 info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; in mgsl_tx_timeout()
7338 if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE ) in mgsl_tx_timeout()
7341 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_tx_timeout()
7344 if (info->netcount) in mgsl_tx_timeout()
7360 spin_lock_irqsave(&info->irq_spinlock,flags); in mgsl_loopmode_send_done()
7361 if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) { in mgsl_loopmode_send_done()
7362 if (info->tx_active) in mgsl_loopmode_send_done()
7363 info->loopmode_send_done_requested = true; in mgsl_loopmode_send_done()
7367 spin_unlock_irqrestore(&info->irq_spinlock,flags); in mgsl_loopmode_send_done()
7377 info->loopmode_send_done_requested = false; in usc_loopmode_send_done()
7379 info->cmr_value &= ~BIT13; in usc_loopmode_send_done()
7380 usc_OutReg(info, CMR, info->cmr_value); in usc_loopmode_send_done()
7399 info->loopmode_insert_requested = true; in usc_loopmode_insert_request()
7408 info->cmr_value |= BIT13; in usc_loopmode_insert_request()
7409 usc_OutReg(info, CMR, info->cmr_value); in usc_loopmode_insert_request()
7422 * hdlcdev_attach - called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
7439 if (info->port.count) in hdlcdev_attach()
7440 return -EBUSY; in hdlcdev_attach()
7449 default: return -EINVAL; in hdlcdev_attach()
7457 default: return -EINVAL; in hdlcdev_attach()
7460 info->params.encoding = new_encoding; in hdlcdev_attach()
7461 info->params.crc_type = new_crctype; in hdlcdev_attach()
7464 if (info->netcount) in hdlcdev_attach()
7471 * hdlcdev_xmit - called by generic HDLC layer to send a frame
7482 printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name); in hdlcdev_xmit()
7488 info->xmit_cnt = skb->len; in hdlcdev_xmit()
7489 mgsl_load_tx_dma_buffer(info, skb->data, skb->len); in hdlcdev_xmit()
7492 dev->stats.tx_packets++; in hdlcdev_xmit()
7493 dev->stats.tx_bytes += skb->len; in hdlcdev_xmit()
7502 spin_lock_irqsave(&info->irq_spinlock,flags); in hdlcdev_xmit()
7503 if (!info->tx_active) in hdlcdev_xmit()
7505 spin_unlock_irqrestore(&info->irq_spinlock,flags); in hdlcdev_xmit()
7511 * hdlcdev_open - called by network layer when interface enabled
7525 printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name); in hdlcdev_open()
7533 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
7534 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
7535 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name); in hdlcdev_open()
7536 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7537 return -EBUSY; in hdlcdev_open()
7539 info->netcount=1; in hdlcdev_open()
7540 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7544 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
7545 info->netcount=0; in hdlcdev_open()
7546 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
7551 info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
7559 spin_lock_irqsave(&info->irq_spinlock, flags); in hdlcdev_open()
7561 spin_unlock_irqrestore(&info->irq_spinlock, flags); in hdlcdev_open()
7562 if (info->serial_signals & SerialSignal_DCD) in hdlcdev_open()
7570 * hdlcdev_close - called by network layer when interface is disabled
7583 printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name); in hdlcdev_close()
7592 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
7593 info->netcount=0; in hdlcdev_close()
7594 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
7600 * hdlcdev_ioctl - called by network layer to process IOCTL call to network device
7611 sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; in hdlcdev_ioctl()
7616 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name); in hdlcdev_ioctl()
7619 if (info->port.count) in hdlcdev_ioctl()
7620 return -EBUSY; in hdlcdev_ioctl()
7625 switch(ifr->ifr_settings.type) { in hdlcdev_ioctl()
7628 ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; in hdlcdev_ioctl()
7629 if (ifr->ifr_settings.size < size) { in hdlcdev_ioctl()
7630 ifr->ifr_settings.size = size; /* data size wanted */ in hdlcdev_ioctl()
7631 return -ENOBUFS; in hdlcdev_ioctl()
7634 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
7648 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
7649 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
7652 return -EFAULT; in hdlcdev_ioctl()
7658 return -EPERM; in hdlcdev_ioctl()
7660 return -EFAULT; in hdlcdev_ioctl()
7668 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
7673 default: return -EINVAL; in hdlcdev_ioctl()
7677 return -EINVAL; in hdlcdev_ioctl()
7679 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
7683 info->params.flags |= flags; in hdlcdev_ioctl()
7685 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
7688 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
7690 info->params.clock_speed = 0; in hdlcdev_ioctl()
7693 if (info->netcount) in hdlcdev_ioctl()
7703 * hdlcdev_tx_timeout - called by network layer when transmit timeout is detected
7713 printk("hdlcdev_tx_timeout(%s)\n",dev->name); in hdlcdev_tx_timeout()
7715 dev->stats.tx_errors++; in hdlcdev_tx_timeout()
7716 dev->stats.tx_aborted_errors++; in hdlcdev_tx_timeout()
7718 spin_lock_irqsave(&info->irq_spinlock,flags); in hdlcdev_tx_timeout()
7720 spin_unlock_irqrestore(&info->irq_spinlock,flags); in hdlcdev_tx_timeout()
7726 * hdlcdev_tx_done - called by device driver when transmit completes
7733 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
7734 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
7738 * hdlcdev_rx - called by device driver when frame received
7748 struct net_device *dev = info->netdev; in hdlcdev_rx()
7751 printk("hdlcdev_rx(%s)\n", dev->name); in hdlcdev_rx()
7755 dev->name); in hdlcdev_rx()
7756 dev->stats.rx_dropped++; in hdlcdev_rx()
7762 skb->protocol = hdlc_type_trans(skb, dev); in hdlcdev_rx()
7764 dev->stats.rx_packets++; in hdlcdev_rx()
7765 dev->stats.rx_bytes += size; in hdlcdev_rx()
7779 * hdlcdev_init - called by device driver when adding device instance
7797 return -ENOMEM; in hdlcdev_init()
7801 dev->base_addr = info->io_base; in hdlcdev_init()
7802 dev->irq = info->irq_level; in hdlcdev_init()
7803 dev->dma = info->dma_level; in hdlcdev_init()
7806 dev->netdev_ops = &hdlcdev_ops; in hdlcdev_init()
7807 dev->watchdog_timeo = 10 * HZ; in hdlcdev_init()
7808 dev->tx_queue_len = 50; in hdlcdev_init()
7812 hdlc->attach = hdlcdev_attach; in hdlcdev_init()
7813 hdlc->xmit = hdlcdev_xmit; in hdlcdev_init()
7823 info->netdev = dev; in hdlcdev_init()
7828 * hdlcdev_exit - called by device driver when removing device instance
7835 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
7836 free_netdev(info->netdev); in hdlcdev_exit()
7837 info->netdev = NULL; in hdlcdev_exit()
7850 return -EIO; in synclink_init_one()
7856 return -EIO; in synclink_init_one()
7861 info->io_base = pci_resource_start(dev, 2); in synclink_init_one()
7862 info->irq_level = dev->irq; in synclink_init_one()
7863 info->phys_memory_base = pci_resource_start(dev, 3); in synclink_init_one()
7869 info->phys_lcr_base = pci_resource_start(dev, 0); in synclink_init_one()
7870 info->lcr_offset = info->phys_lcr_base & (PAGE_SIZE-1); in synclink_init_one()
7871 info->phys_lcr_base &= ~(PAGE_SIZE-1); in synclink_init_one()
7873 info->io_addr_size = 8; in synclink_init_one()
7874 info->irq_flags = IRQF_SHARED; in synclink_init_one()
7876 if (dev->device == 0x0210) { in synclink_init_one()
7878 info->misc_ctrl_value = 0x007c4080; in synclink_init_one()
7879 info->hw_version = 1; in synclink_init_one()
7886 info->misc_ctrl_value = 0x087e4546; in synclink_init_one()
7887 info->hw_version = 0; in synclink_init_one()