16a43bf443
Add prototypes for make_final_cleanup (and the other cleanup routines. * remote-e7000.c: Fix sync code to timeout if unable to sync. Change sync code to report status while trying to sync-up with hardware. Add debugging output and document. * ser-e7kpc.c: Swap order of len & offset to match implementation. Add debugging output and document. * serial.c: Add debugging output. * top.c: Add call to do_final_cleanups. Remove conditionals preventing Win32 from getting SIGQUIT. * utils.c: (*_cleanup): Modify cleanup routines to accept a cleanup chain as a parameter. Extract this generic code from the cleanup routines into separate funtions (*_my_cleanup). Keep old functionality by passing "cleanup_chain" to the new funtions. Define the cleanup chain "final_cleanup_chain" to be a cleanup chain which will be executed only when gdb exits. Add functions (*_final_cleanup) to match the original (*_cleanup) functions. (pollquit, quit, notice_quit): Fix to read cntl-C from the Windows message queue.
656 lines
15 KiB
C
656 lines
15 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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//#define DEBUGIFY
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#include "debugify.h"
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#define RMT_DBG(x) if (remote_debug) printf_unfiltered x
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#if defined(__GO32__) || defined(_WIN32)
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#if defined(_WIN32)
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/* we define the 32-bit calls which thunk to 16-bit dll calls
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*/
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#include "win-e7kpc.h"
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#include "target.h"
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#ifdef _MSC_VER
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/* msvc uses strnicmp instead of strncasecmp */
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#define strncasecmp strnicmp
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#define W32SUT_32
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#include "windefs.h"
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#include "w32sut.h"
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#endif
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#include "gdbwin.h"
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#else
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#include <sys/dos.h>
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#include "defs.h"
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#endif /* _WIN32 */
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#include "serial.h"
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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 _WIN32
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/* These routines are normally part of the go32 dos extender.
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* We redefine them here to be calls into their Windoze equivs. */
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static void dosmemget(int offset, int length, void *buffer);
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static void dosmemput(const void *buffer, int length, int offset);
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/* dll entry points for w32se7kpc.dll; call kernel32 to thunk for us */
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typedef BOOL (APIENTRY * PUTREGISTER) (
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HANDLE hModule,
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LPCSTR lpsz16BitDLL,
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LPCSTR lpszInitName,
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LPCSTR lpszProcName,
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UT32PROC * ppfn32Thunk,
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FARPROC pfnUT32Callback,
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LPVOID lpBuff
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);
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/* dll entry points for w95e7kpc.dll and w31e7kpc.dll */
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HANDLE hWine7kpc = 0;
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typedef int (APIENTRY * PWIN_LOAD_E7KPC) (void);
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typedef void (APIENTRY * PWIN_UNLOAD_E7KPC) (void);
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typedef void (APIENTRY * PWIN_MEM_GET) (unsigned char *buf, int len, int offset);
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typedef void (APIENTRY * PWIN_MEM_PUT) (unsigned char *buf, int len, int offset);
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typedef void (APIENTRY * PWIN_REMOTE_DEBUG) (int val);
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PWIN_LOAD_E7KPC pwin_load_e7kpc=NULL;
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PWIN_UNLOAD_E7KPC pwin_unload_e7kpc=NULL;
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PWIN_MEM_GET pwin_mem_get=NULL;
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PWIN_MEM_PUT pwin_mem_put=NULL;
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PWIN_REMOTE_DEBUG pwin_remote_debug=NULL;
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static int last_remote_debug = 0;
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static int wine7kpc_loaded = 0;
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static void win_unload_e7kpc (void);
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static int win_load_e7kpc (void)
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{
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if (pwin_load_e7kpc && !wine7kpc_loaded)
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{
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wine7kpc_loaded = pwin_load_e7kpc();
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if (wine7kpc_loaded)
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make_final_cleanup(win_unload_e7kpc, 0);
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}
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return wine7kpc_loaded;
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}
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static void win_unload_e7kpc (void)
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{
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DBG(("win_unload_e7kpc\n"));
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if (pwin_unload_e7kpc && wine7kpc_loaded)
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pwin_unload_e7kpc();
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wine7kpc_loaded = 0;
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}
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static void win_mem_get (unsigned char *buf, int offset, int len)
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{
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DBG(("win_mem_get(&buf=<x%x> offset=<x%x> len=<%d>)\n", buf, offset, len));
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if (remote_debug!=last_remote_debug && pwin_remote_debug)
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{
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//DBG(("calling pwin_remote_debug\n"));
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pwin_remote_debug(remote_debug);
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last_remote_debug=remote_debug;
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}
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if (pwin_mem_get)
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{
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//DBG(("calling pwin_mem_get\n"));
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pwin_mem_get (buf, offset, len);
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}
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//DBG(("leaving win_mem_get; buf=<%s>\n", buf));
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}
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static void win_mem_put (unsigned char *buf, int offset, int len)
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{
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DBG(("win_mem_put(buf=<%s> offset=<x%x> len=<%d>)\n", buf, offset, len));
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if (remote_debug!=last_remote_debug && pwin_remote_debug)
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{
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pwin_remote_debug(remote_debug);
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last_remote_debug=remote_debug;
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}
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if (pwin_mem_put)
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pwin_mem_put (buf, offset, len);
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}
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static void dosmemget(int offset, int length, void *buffer)
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{
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win_mem_get(buffer, offset, length);
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}
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static void dosmemput(const void *buffer, int length, int offset)
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{
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win_mem_put((unsigned char*)buffer, offset, length);
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}
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#endif /* _WIN32 */
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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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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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static int
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e7000pc_init ()
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{
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/* Look around in memory for the board's signature */
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int try;
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DBG(("e7000pc_init()\n"));
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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;
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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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RMT_DBG(("e7000pc_init: looking for board's signature, try=%d\n", try));
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val = GET_WORD (ready);
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//DBG(("e7000pc_init: GET_WORD returns x%x\n", val));
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if (val == (0xaaa0 | sigs[try].sw))
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{
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if (GET_BYTE (pon) & 0xf)
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{
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SET_BYTE(fa, 0);
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SET_BYTE (fb, 0);
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SET_BYTE (irqtop, 1); /* Disable interrupts from e7000 */
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SET_WORD (ready, 1);
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DBG(("Yippie! Connected :-)\n"));
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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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DBG(("Bummer! e7000pc not on :-(\n"));
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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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DBG(("Bummer! Can't connect :-(\n"));
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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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static
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int
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e7000_get ()
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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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DBG(("e7000_get()\n"));
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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_BYTE (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_BYTE(fb,0);
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/* Swap it around */
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/* FIXME! We get in an infinite loop inside e7000_open...
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* This is called from dosasync_readchar
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* called from remote-e7000.c trying to sync up.
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*/
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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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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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DBG(("dosasync_read(fd=x%x,buf,len=x%x,timeout=x%x)\n",fd,len,timeout));
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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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//DBG(("%d: e7000_get gotta x%x\n", i, ch\n"));
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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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//DBG(("e7000_get got x%x; before loop2: len=x%x, pbuf_index=x%x, pbuf_size=x%x\n", ch, len, pbuf_index, pbuf_size));
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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 || (now >= then && timeout > 0))
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{
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/* We timeout here but return i anyway...
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* were we supposed to send a TIMEOUT ?
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* While syncing, len = 1 and timeout=1..
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* so always take this path and return 1 char.
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*/
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DBG(("timeout; read x%x chars\n", i));
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return i;
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}
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}
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//DBG(("Yay! read x%x chars\n", len));
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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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DBG(("dosasync_write(fd=x%x,buf=x%x,len=x%x)\n",fd,buf,len));
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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_BYTE(fa) & 1) != 0)
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;
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/* Blast onto the ISA card */
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dosmemput (dummy, 8 + len + 1, cpd);
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SET_BYTE(fa, 1);
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SET_BYTE(irqtod, 1); /* Interrupt the E7000 */
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return len;
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}
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#ifdef _WIN32
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static int
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load_wine7kpc(void)
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{
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char dll[64];
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DBG(("load_wine7kpc()\n"));
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if (win_host()==winnt)
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{
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printf_filtered( "e7000pc not supported on this host.\n" );
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return 0;
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}
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if (win_host()==win32s)
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strcpy(dll, "w31e7kpc.Dll");
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else if (win_host()==win95)
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strcpy(dll, "w95e7kpc.Dll");
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else return 0;
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/* load dll for windows support of e7000pc */
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DBG(("LoadLibrary(%s)\n",dll));
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hWine7kpc = LoadLibrary (dll);
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if (!hWine7kpc)
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{
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DBG(("LoadLibrary(%s) failed\n",dll));
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printf_filtered( "Error: unable to load %s.\n",dll);
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return 0;
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}
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pwin_load_e7kpc = (PWIN_LOAD_E7KPC) GetProcAddress (hWine7kpc, "win_load_e7kpc");
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if (!pwin_load_e7kpc)
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{
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DBG(("!pwin_load_e7kpc\n"));
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printf_filtered( "Error: unable to resolve win_load_e7kpc.\n" );
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return 0;
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}
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pwin_unload_e7kpc = (PWIN_UNLOAD_E7KPC) GetProcAddress (hWine7kpc, "win_unload_e7kpc");
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if (!pwin_unload_e7kpc)
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{
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DBG(("!pwin_unload_e7kpc\n"));
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printf_filtered( "Error: unable to resolve win_unload_e7kpc.\n" );
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return 0;
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}
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pwin_mem_get = (PWIN_MEM_GET) GetProcAddress (hWine7kpc, "win_mem_get");
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if (!pwin_mem_get)
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{
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DBG(("!pwin_mem_get\n"));
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printf_filtered( "Error: unable to resolve win_mem_get.\n" );
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return 0;
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}
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pwin_mem_put= (PWIN_MEM_PUT) GetProcAddress (hWine7kpc, "win_mem_put");
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if (!pwin_mem_put)
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{
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DBG(("!pwin_mem_put\n"));
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printf_filtered( "Error: unable to resolve win_mem_put.\n" );
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return 0;
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}
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pwin_remote_debug= (PWIN_REMOTE_DEBUG) GetProcAddress (hWine7kpc, "win_remote_debug");
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if (!pwin_remote_debug)
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{
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DBG(("!pwin_remote_debug\n"));
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printf_filtered( "Error: unable to resolve win_remote_debug.\n" );
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return 0;
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}
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DBG(("load_wine7kpc Done! :-)\n"));
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return 1;
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}
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#endif /* _WIN32 */
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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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DBG(("e7000pc_open\n"));
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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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#ifdef _WIN32
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if (!load_wine7kpc()) /* load windows dll for e7kpc support */
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{
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DBG(("Error! load_wine7kpc failed\n"));
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printf_filtered("Failed to initialize dll for e7000pc support.\n" );
|
|
return -1;
|
|
}
|
|
//DBG(("calling win_load_e7kpc\n"));
|
|
if (win_load_e7kpc () != 0)
|
|
{
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
#endif /* _WIN32 */
|
|
//DBG(("calling e7000pc_init\n"));
|
|
scb->fd = e7000pc_init ();
|
|
|
|
if (!scb->fd)
|
|
{
|
|
DBG(("Error! !scb->fd\n"));
|
|
return -1;
|
|
}
|
|
|
|
DBG(("e7000pc_open done! :-)\n"));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
e7000pc_noop (scb)
|
|
serial_t scb;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
e7000pc_raw (scb)
|
|
serial_t scb;
|
|
{
|
|
/* Always in raw mode */
|
|
}
|
|
|
|
static int
|
|
e7000pc_readchar (scb, timeout)
|
|
serial_t scb;
|
|
int timeout;
|
|
{
|
|
char buf;
|
|
|
|
DBG(("e7000pc_readchar\n"));
|
|
top:
|
|
|
|
/* FIXME! How does dosasync_read ever return 0?
|
|
* it always goes thru the loop once, so i>0
|
|
*/
|
|
if (dosasync_read (scb->fd, &buf, 1, timeout))
|
|
{
|
|
if (buf == 0) goto top;
|
|
return buf;
|
|
}
|
|
else
|
|
return SERIAL_TIMEOUT;
|
|
}
|
|
|
|
struct e7000pc_ttystate {
|
|
int dummy;
|
|
};
|
|
|
|
/* e7000pc_{get set}_tty_state() are both dummys to fill out the function
|
|
vector. Someday, they may do something real... */
|
|
|
|
static serial_ttystate
|
|
e7000pc_get_tty_state (scb)
|
|
serial_t scb;
|
|
{
|
|
struct e7000pc_ttystate *state;
|
|
DBG(("e7000pc_get_tty_state\n"));
|
|
|
|
state = (struct e7000pc_ttystate *) xmalloc (sizeof *state);
|
|
|
|
return (serial_ttystate) state;
|
|
}
|
|
|
|
static int
|
|
e7000pc_set_tty_state (scb, ttystate)
|
|
serial_t scb;
|
|
serial_ttystate ttystate;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
e7000pc_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
|
|
serial_t scb;
|
|
serial_ttystate new_ttystate;
|
|
serial_ttystate old_ttystate;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
e7000pc_print_tty_state (scb, ttystate)
|
|
serial_t scb;
|
|
serial_ttystate ttystate;
|
|
{
|
|
/* Nothing to print. */
|
|
return;
|
|
}
|
|
|
|
static int
|
|
e7000pc_setbaudrate (scb, rate)
|
|
serial_t scb;
|
|
int rate;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
e7000pc_write (scb, str, len)
|
|
serial_t scb;
|
|
const char *str;
|
|
int len;
|
|
{
|
|
DBG(("e7000pc_write(scb,str=%s,len=x%x)\n",str,len));
|
|
dosasync_write (scb->fd, str, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
e7000pc_close (scb)
|
|
serial_t scb;
|
|
{
|
|
DBG(("e7000pc_close\n"));
|
|
#ifdef _WIN32
|
|
win_unload_e7kpc ();
|
|
#endif
|
|
}
|
|
|
|
static struct serial_ops e7000pc_ops =
|
|
{
|
|
"pc",
|
|
0,
|
|
e7000pc_open,
|
|
e7000pc_close,
|
|
e7000pc_readchar,
|
|
e7000pc_write,
|
|
e7000pc_noop, /* flush output */
|
|
e7000pc_noop, /* flush input */
|
|
e7000pc_noop, /* send break -- currently used only for nindy */
|
|
e7000pc_raw,
|
|
e7000pc_get_tty_state,
|
|
e7000pc_set_tty_state,
|
|
e7000pc_print_tty_state,
|
|
e7000pc_noflush_set_tty_state,
|
|
e7000pc_setbaudrate,
|
|
};
|
|
|
|
void
|
|
_initialize_ser_e7000pc ()
|
|
{
|
|
serial_add_interface (&e7000pc_ops);
|
|
}
|
|
#else
|
|
|
|
void
|
|
_initialize_ser_e7000pc ()
|
|
{
|
|
|
|
}
|
|
#endif /* defined(__GO32__) || defined(_WIN32) */
|