4ce7ba5188
that directory. * defs.h utils.c (error warning): Make message be const. * main.c (fputs_unfiltered): Only send gdb_stdout and gdb_stderr to hook. Otherwise send it to fputs. * monitor.c monitor.h (monitor_get_dev_name): New function. Does the obvious. * remote-e7000.c: Remove debugify stuff. Change printf, fprintf to _filtered forms to make output appear in GUIs. Replace all uses of SERIAL_READCHAR with readchar, which has better error checking. * (e7000_parse_device): Add prototype. * (readchar): Improve doc. Handle random serial errors. * (expect): Disable notice_quit code. It's busted. Remove serial error handling (it's now handled in readchar). Remove remote_debug echoing. That's handled in readchar as well. * (e7000_parse_device): Remove serial_flag arg. It's not necessary. * (e7000_open): Split into two pieces. Second part is e7000_start_remote, and is error protected. Now, when we connect to the target, we setup the initial frame and registers so that the user gets an immediate indication of where the target is. * (gch): Remove debug output. That's handled by readchar. * (e7000_read_inferior_memory): Handle errors better. * (_initialize_remote_e7000): Get rid of `<xxx>' things from command names. They show up when doing completion and confuse things horribly. * ser-e7kpc.c: Remove the last seven months of brain damage. Get rid of the DLL's since we can access the device directly from Win32s and Win95. Get rid of debugify crud. * serial.c: Remove debugify cruft. * (serial_logchar serial_log_command serial_write serial_readchar serial_send_break serial_close): Merge common functionality into serial_logchar. Clean up rest of routines. * sparclet-rom.c: Disembowel. Leave only download routine. Download routine now switches to remote target automatically. * top.c (disconnect): Only define if SIGHUP is defined. Cleans up MSVC/Win32 problem. * utils.c (gdb_flush): Don't call hook unless it's for gdb_stdout or gdb_stderr. * config/sh/tm-sh.h: Define TARGET_SH for WinGDB. * config/sparc/tm-sparclet.h: Remove override for prompt.
476 lines
10 KiB
C
476 lines
10 KiB
C
/* Remote serial interface using Hitachi E7000 PC ISA card in a PC
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Copyright 1994 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if defined __GO32__ || defined _WIN32
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#include "defs.h"
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#include "serial.h"
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#include "gdb_string.h"
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/* MSVC uses strnicmp instead of strncasecmp */
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#ifdef _MSC_VER
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#define strncasecmp strnicmp
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#define W32SUT_32
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#include <w32sut.h>
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#endif
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#ifdef __GO32__
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#include <sys/dos.h>
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#endif
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static int e7000pc_open PARAMS ((serial_t scb, const char *name));
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static void e7000pc_raw PARAMS ((serial_t scb));
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static int e7000pc_readchar PARAMS ((serial_t scb, int timeout));
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static int e7000pc_setbaudrate PARAMS ((serial_t scb, int rate));
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static int e7000pc_write PARAMS ((serial_t scb, const char *str, int len));
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static void e7000pc_close PARAMS ((serial_t scb));
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static serial_ttystate e7000pc_get_tty_state PARAMS ((serial_t scb));
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static int e7000pc_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
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static char *aptr PARAMS ((short p));
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static int dos_async_init PARAMS ((int port));
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static void dos_async_tx PARAMS ((const char c));
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static int dos_async_rx PARAMS (());
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#define OFF_DPD 0x0000
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#define OFF_DDP 0x1000
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#define OFF_CPD 0x2000
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#define OFF_CDP 0x2400
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#define OFF_FA 0x3000
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#define OFF_FB 0x3002
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#define OFF_FC 0x3004
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#define OFF_IRQTOD 0x3008
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#define OFF_IRQTOP 0x300a
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#define OFF_READY 0x300c
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#define OFF_PON 0x300e
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#define IDLE 0x0000
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#define CMD_CI 0x4349
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#define CMD_CO 0x434f
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#define CMD_LO 0x4c4f
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#define CMD_LS 0x4c53
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#define CMD_SV 0x5356
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#define CMD_SS 0x5353
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#define CMD_OK 0x4f4b
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#define CMD_ER 0x4552
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#define CMD_NF 0x4e46
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#define CMD_AB 0x4142
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#define CMD_ED 0x4544
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#define CMD_CE 0x4345
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static unsigned long fa;
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static unsigned long irqtod;
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static unsigned long ready;
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static unsigned long fb;
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static unsigned long cpd ;
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static unsigned long cdp ;
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static unsigned long ready;
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static unsigned long pon;
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static unsigned long irqtop;
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static unsigned long board_at;
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#ifdef __GO32__
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#define SET_BYTE(x,y) { char _buf = y;dosmemput(&_buf,1, x);}
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#define SET_WORD(x,y) { short _buf = y;dosmemput(&_buf,2, x);}
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#define GET_BYTE(x) ( dosmemget(x,1,&bb), bb)
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#define GET_WORD(x) ( dosmemget(x,2,&sb), sb)
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static unsigned char bb;
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static unsigned short sb;
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#else /* win32 */
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#define SET_BYTE(x,y) *(volatile unsigned char *)(x) = (y)
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#define SET_WORD(x,y) *(volatile unsigned short *)(x) = (y)
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#define GET_BYTE(x) (*(volatile unsigned char *)(x))
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#define GET_WORD(x) (*(volatile unsigned short *)(x))
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#define dosmemget(FROM, LEN, TO) memcpy ((void *)(TO), (void *)(FROM), (LEN))
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#define dosmemput(FROM, LEN, TO) memcpy ((void *)(TO), (void *)(FROM), (LEN))
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#endif
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static struct sw
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{
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int sw;
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int addr;
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} sigs[] = {
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{0x14, 0xd0000},
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{0x15, 0xd4000},
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{0x16, 0xd8000},
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{0x17, 0xdc000},
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0};
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#ifndef __GO32__
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/* Get the base of the data segment. This is needed to calculate the offset
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between data segment addresses and the base of linear memory, which is where
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device registers reside. Note that this is really only necessary for
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Win32s, since Win95 and NT keep the data segment at linear 0. */
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static unsigned long
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get_ds_base (void)
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{
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unsigned short dsval;
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LDT_ENTRY ldt;
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unsigned long dsbase;
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__asm
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{
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mov dsval,ds
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}
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dsbase = 0;
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GetThreadSelectorEntry (GetCurrentThread(), dsval, &ldt);
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dsbase = ldt.HighWord.Bits.BaseHi << 24 | ldt.HighWord.Bits.BaseMid << 16
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| ldt.BaseLow;
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return dsbase;
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}
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#else /* !__GO32__ */
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#define get_ds_base() 0
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#endif /* __GO32__ */
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static int
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e7000pc_init ()
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{
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int try;
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unsigned long dsbase;
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dsbase = get_ds_base ();
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/* Look around in memory for the board's signature */
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for (try = 0; sigs[try].sw; try++)
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{
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int val;
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board_at = sigs[try].addr - dsbase;
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fa = board_at + OFF_FA;
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fb = board_at + OFF_FB;
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cpd = board_at + OFF_CPD;
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cdp = board_at + OFF_CDP;
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ready =board_at + OFF_READY;
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pon = board_at + OFF_PON;
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irqtop = board_at + OFF_IRQTOP;
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irqtod = board_at + OFF_IRQTOD;
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val = GET_WORD (ready);
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if (val == (0xaaa0 | sigs[try].sw))
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{
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if (GET_WORD (pon) & 0xf)
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{
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SET_WORD (fa, 0);
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SET_WORD (fb, 0);
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SET_WORD (irqtop, 1); /* Disable interrupts from e7000 */
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SET_WORD (ready, 1);
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printf_filtered ("\nConnected to the E7000PC at address 0x%x\n",
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sigs[try].addr);
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return 1;
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}
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error ("The E7000 PC board is working, but the E7000 is turned off.\n");
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return 0;
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}
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}
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error ("GDB cannot connect to the E7000 PC board, check that it is installed\n\
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and that the switch settings are correct. Some other DOS programs can \n\
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stop the board from working. Try starting from a very minimal boot, \n\
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perhaps you need to disable EMM386 over the region where the board has\n\
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its I/O space, remove other unneeded cards, etc etc\n");
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return 0;
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}
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static int pbuf_size;
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static int pbuf_index;
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/* Return next byte from cdp. If no more, then return -1. */
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static int
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e7000_get (void)
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{
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static char pbuf[1000];
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char tmp[1000];
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int x;
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if (pbuf_index < pbuf_size)
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{
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x = pbuf[pbuf_index++];
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}
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else if ((GET_WORD (fb) & 1))
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{
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int i;
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pbuf_size = GET_WORD (cdp + 2);
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dosmemget (cdp + 8, pbuf_size + 1, tmp);
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/* Tell the E7000 we've eaten */
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SET_WORD (fb, 0);
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/* Swap it around */
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for (i = 0; i < pbuf_size; i++)
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{
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pbuf[i] = tmp[i^1];
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}
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pbuf_index = 0;
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x = pbuf[pbuf_index++];
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}
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else
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{
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x = -1;
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}
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return x;
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}
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/* Works just like read(), except that it takes a TIMEOUT in seconds. Note
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that TIMEOUT == 0 is a poll, and TIMEOUT == -1 means wait forever. */
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static int
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dosasync_read (fd, buf, len, timeout)
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int fd;
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char *buf;
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int len;
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int timeout;
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{
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long now;
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long then;
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int i = 0;
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/* Then look for some more if we're still hungry */
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time (&now);
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then = now + timeout;
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while (i < len)
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{
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int ch = e7000_get();
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/* While there's room in the buffer, and we've already
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read the stuff in, suck it over */
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if (ch != -1)
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{
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buf[i++] = ch;
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while (i < len && pbuf_index < pbuf_size )
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{
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ch = e7000_get();
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if (ch == -1)
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break;
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buf[i++] = ch;
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}
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}
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time (&now);
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if (timeout == 0)
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return i;
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if (now >= then && timeout > 0)
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{
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return i;
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}
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}
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return len;
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}
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static int
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dosasync_write (fd, buf, len)
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int fd;
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const char *buf;
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int len;
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{
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int i;
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char dummy[1000];
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/* Construct copy locally */
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((short *)dummy)[0] = CMD_CI;
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((short *)dummy)[1] = len;
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((short *)dummy)[2] = 0;
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((short *)dummy)[3] = 0;
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for (i = 0; i < len ; i++)
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{
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dummy[8 + i ^ 1] = buf[i];
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}
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/* Wait for the card to get ready */
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while (GET_WORD (fa) & 1) ;
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/* Blast onto the ISA card */
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dosmemput (dummy, 8 + len + 1, cpd);
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SET_WORD (fa, 1);
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SET_WORD (irqtod, 1); /* Interrupt the E7000 */
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return len;
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}
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static int
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e7000pc_open (scb, name)
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serial_t scb;
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const char *name;
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{
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if (strncasecmp (name, "pc", 2) != 0)
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{
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errno = ENOENT;
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return -1;
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}
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scb->fd = e7000pc_init ();
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if (!scb->fd)
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return -1;
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return 0;
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}
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static int
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e7000pc_noop (scb)
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serial_t scb;
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{
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return 0;
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}
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static void
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e7000pc_raw (scb)
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serial_t scb;
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{
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/* Always in raw mode */
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}
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static int
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e7000pc_readchar (scb, timeout)
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serial_t scb;
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int timeout;
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{
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char buf;
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top:
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if (dosasync_read (scb->fd, &buf, 1, timeout))
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{
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if (buf == 0) goto top;
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return buf;
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}
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else
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return SERIAL_TIMEOUT;
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}
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struct e7000pc_ttystate {
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int dummy;
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};
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/* e7000pc_{get set}_tty_state() are both dummys to fill out the function
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vector. Someday, they may do something real... */
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static serial_ttystate
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e7000pc_get_tty_state (scb)
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serial_t scb;
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{
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struct e7000pc_ttystate *state;
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state = (struct e7000pc_ttystate *) xmalloc (sizeof *state);
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return (serial_ttystate) state;
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}
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static int
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e7000pc_set_tty_state (scb, ttystate)
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serial_t scb;
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serial_ttystate ttystate;
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{
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return 0;
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}
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static int
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e7000pc_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
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serial_t scb;
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serial_ttystate new_ttystate;
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serial_ttystate old_ttystate;
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{
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return 0;
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}
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static void
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e7000pc_print_tty_state (scb, ttystate)
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serial_t scb;
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serial_ttystate ttystate;
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{
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/* Nothing to print. */
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return;
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}
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static int
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e7000pc_setbaudrate (scb, rate)
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serial_t scb;
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int rate;
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{
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return 0;
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}
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static int
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e7000pc_write (scb, str, len)
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serial_t scb;
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const char *str;
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int len;
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{
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dosasync_write (scb->fd, str, len);
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return 0;
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}
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static void
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e7000pc_close (scb)
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serial_t scb;
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{
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}
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static struct serial_ops e7000pc_ops =
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{
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"pc",
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0,
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e7000pc_open,
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e7000pc_close,
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e7000pc_readchar,
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e7000pc_write,
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e7000pc_noop, /* flush output */
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e7000pc_noop, /* flush input */
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e7000pc_noop, /* send break -- currently used only for nindy */
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e7000pc_raw,
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e7000pc_get_tty_state,
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e7000pc_set_tty_state,
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e7000pc_print_tty_state,
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e7000pc_noflush_set_tty_state,
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e7000pc_setbaudrate,
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};
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void
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_initialize_ser_e7000pc ()
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{
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serial_add_interface (&e7000pc_ops);
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}
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#else
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void
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_initialize_ser_e7000pc ()
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{
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}
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#endif
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