| sio.c (60947) | sio.c (61649) |
|---|---|
| 1/*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * | 1/*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * |
| 33 * $FreeBSD: head/sys/dev/sio/sio.c 60947 2000-05-26 11:41:08Z tanimura $ | 33 * $FreeBSD: head/sys/dev/sio/sio.c 61649 2000-06-14 06:41:33Z ps $ |
| 34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91 35 * from: i386/isa sio.c,v 1.234 36 */ 37 38#include "opt_comconsole.h" 39#include "opt_compat.h" 40#include "opt_ddb.h" 41#include "opt_sio.h" --- 1821 unchanged lines hidden (view full) --- 1863 1864 /* input event? (check first to help avoid overruns) */ 1865 while (line_status & LSR_RCV_MASK) { 1866 /* break/unnattached error bits or real input? */ 1867 if (!(line_status & LSR_RXRDY)) 1868 recv_data = 0; 1869 else 1870 recv_data = inb(com->data_port); | 34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91 35 * from: i386/isa sio.c,v 1.234 36 */ 37 38#include "opt_comconsole.h" 39#include "opt_compat.h" 40#include "opt_ddb.h" 41#include "opt_sio.h" --- 1821 unchanged lines hidden (view full) --- 1863 1864 /* input event? (check first to help avoid overruns) */ 1865 while (line_status & LSR_RCV_MASK) { 1866 /* break/unnattached error bits or real input? */ 1867 if (!(line_status & LSR_RXRDY)) 1868 recv_data = 0; 1869 else 1870 recv_data = inb(com->data_port); |
| 1871#if defined(DDB) && defined(ALT_BREAK_TO_DEBUGGER) 1872 /* 1873 * Solaris implements a new BREAK which is initiated 1874 * by a character sequence CR ~ ^b which is similar 1875 * to a familiar pattern used on Sun servers by the 1876 * Remote Console. 1877 */ 1878#define KEY_CRTLB 2 /* ^B */ 1879#define KEY_CR 13 /* CR '\r' */ 1880#define KEY_TILDE 126 /* ~ */ 1881 1882 if (com->unit == comconsole) { 1883 static int brk_state1 = 0, brk_state2 = 0; 1884 if (recv_data == KEY_CR) { 1885 brk_state1 = recv_data; 1886 brk_state2 = 0; 1887 } else if (brk_state1 == KEY_CR && (recv_data == KEY_TILDE || recv_data == KEY_CRTLB)) { 1888 if (recv_data == KEY_TILDE) 1889 brk_state2 = recv_data; 1890 else if (brk_state2 == KEY_TILDE && recv_data == KEY_CRTLB) { 1891 breakpoint(); 1892 brk_state1 = brk_state2 = 0; 1893 goto cont; 1894 } else 1895 brk_state2 = 0; 1896 } else 1897 brk_state1 = 0; 1898 } 1899#endif |
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| 1871 if (line_status & (LSR_BI | LSR_FE | LSR_PE)) { 1872 /* 1873 * Don't store BI if IGNBRK or FE/PE if IGNPAR. 1874 * Otherwise, push the work to a higher level 1875 * (to handle PARMRK) if we're bypassing. 1876 * Otherwise, convert BI/FE and PE+INPCK to 0. 1877 * 1878 * This makes bypassing work right in the --- 1385 unchanged lines hidden --- | 1900 if (line_status & (LSR_BI | LSR_FE | LSR_PE)) { 1901 /* 1902 * Don't store BI if IGNBRK or FE/PE if IGNPAR. 1903 * Otherwise, push the work to a higher level 1904 * (to handle PARMRK) if we're bypassing. 1905 * Otherwise, convert BI/FE and PE+INPCK to 0. 1906 * 1907 * This makes bypassing work right in the --- 1385 unchanged lines hidden --- |