1999-05-08 12:54:04 +02:00
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/*
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* DOS devices
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*
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2008-10-18 19:21:31 +02:00
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* Copyright 1999 Ove Kåven
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2002-03-10 00:29:33 +01:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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2006-05-18 14:49:52 +02:00
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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1999-05-08 12:54:04 +02:00
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "wine/winbase16.h"
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1999-05-22 12:41:28 +02:00
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#include "dosexe.h"
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2002-03-10 00:29:33 +01:00
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#include "wine/debug.h"
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1999-05-08 12:54:04 +02:00
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#include "pshpack1.h"
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2003-11-15 01:13:20 +01:00
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/* Warning: need to return LOL ptr w/ offset 0 (&ptr_first_DPB) to programs ! */
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typedef struct _DOS_LISTOFLISTS
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{
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WORD CX_Int21_5e01; /* -24d contents of CX from INT 21/AX=5E01h */
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WORD LRU_count_FCB_cache; /* -22d */
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WORD LRU_count_FCB_open; /* -20d */
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DWORD OEM_func_handler; /* -18d OEM function of INT 21/AH=F8h */
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WORD INT21_offset; /* -14d offset in DOS CS of code to return from INT 21 call */
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WORD sharing_retry_count; /* -12d */
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WORD sharing_retry_delay; /* -10d */
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DWORD ptr_disk_buf; /* -8d ptr to current disk buf */
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WORD offs_unread_CON; /* -4d pointer in DOS data segment of unread CON input */
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WORD seg_first_MCB; /* -2d */
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DWORD ptr_first_DPB; /* 00 */
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DWORD ptr_first_SysFileTable; /* 04 */
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DWORD ptr_clock_dev_hdr; /* 08 */
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DWORD ptr_CON_dev_hdr; /* 0C */
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WORD max_byte_per_sec; /* 10 maximum bytes per sector of any block device */
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DWORD ptr_disk_buf_info; /* 12 */
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DWORD ptr_array_CDS; /* 16 current directory structure */
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DWORD ptr_sys_FCB; /* 1A */
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WORD nr_protect_FCB; /* 1E */
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BYTE nr_block_dev; /* 20 */
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BYTE nr_avail_drive_letters; /* 21 */
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DOS_DEVICE_HEADER NUL_dev; /* 22 */
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BYTE nr_drives_JOINed; /* 34 */
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WORD ptr_spec_prg_names; /* 35 */
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DWORD ptr_SETVER_prg_list; /* 37 */
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WORD DOS_HIGH_A20_func_offs;/* 3B */
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WORD PSP_last_exec; /* 3D if DOS in HMA: PSP of program executed last; if DOS low: 0000h */
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WORD BUFFERS_val; /* 3F */
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WORD BUFFERS_nr_lookahead; /* 41 */
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BYTE boot_drive; /* 43 */
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BYTE flag_DWORD_moves; /* 44 01h for 386+, 00h otherwise */
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WORD size_extended_mem; /* 45 size of extended mem in KB */
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SEGPTR wine_rm_lol; /* -- wine: Real mode pointer to LOL */
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SEGPTR wine_pm_lol; /* -- wine: Protected mode pointer to LOL */
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} DOS_LISTOFLISTS;
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1999-05-08 12:54:04 +02:00
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#include "poppack.h"
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2000-06-07 04:02:56 +02:00
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#define CON_BUFFER 128
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1999-05-22 12:41:28 +02:00
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2000-09-24 22:47:50 +02:00
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enum strategy { SYSTEM_STRATEGY_NUL, SYSTEM_STRATEGY_CON, NB_SYSTEM_STRATEGIES };
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static void *strategy_data[NB_SYSTEM_STRATEGIES];
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1999-05-22 12:41:28 +02:00
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#define LJMP 0xea
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1999-05-08 12:54:04 +02:00
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1999-05-22 12:41:28 +02:00
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/* prototypes */
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1999-06-26 20:40:24 +02:00
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static void WINAPI nul_strategy(CONTEXT86*ctx);
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static void WINAPI nul_interrupt(CONTEXT86*ctx);
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static void WINAPI con_strategy(CONTEXT86*ctx);
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static void WINAPI con_interrupt(CONTEXT86*ctx);
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1999-05-08 12:54:04 +02:00
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2000-06-07 04:02:56 +02:00
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/* devices */
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2006-11-29 11:03:59 +01:00
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static const WINEDEV devs[] =
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2000-06-07 04:02:56 +02:00
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{
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{ "NUL ",
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ATTR_CHAR|ATTR_NUL|ATTR_DEVICE,
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nul_strategy, nul_interrupt },
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1999-05-08 12:54:04 +02:00
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2000-06-07 04:02:56 +02:00
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{ "CON ",
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ATTR_CHAR|ATTR_STDIN|ATTR_STDOUT|ATTR_FASTCON|ATTR_NOTEOF|ATTR_DEVICE,
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con_strategy, con_interrupt }
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1999-05-08 12:54:04 +02:00
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};
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2000-06-07 04:02:56 +02:00
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#define NR_DEVS (sizeof(devs)/sizeof(WINEDEV))
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/* DOS data segment */
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typedef struct
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1999-05-22 12:41:28 +02:00
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{
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2000-06-07 04:02:56 +02:00
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DOS_LISTOFLISTS lol;
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DOS_DEVICE_HEADER dev[NR_DEVS-1];
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2006-04-11 10:36:08 +02:00
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DOS_DEVICE_HEADER *last_dev; /* ptr to last registered device driver */
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2000-06-07 04:02:56 +02:00
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WINEDEV_THUNK thunk[NR_DEVS];
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REQ_IO req;
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BYTE buffer[CON_BUFFER];
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} DOS_DATASEG;
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#define DOS_DATASEG_OFF(xxx) FIELD_OFFSET(DOS_DATASEG, xxx)
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2007-02-02 15:38:45 +01:00
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static DWORD DOS_LOLSeg;
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2002-08-31 20:47:00 +02:00
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2005-06-21 22:53:13 +02:00
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static struct _DOS_LISTOFLISTS * DOSMEM_LOL(void)
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2001-12-04 20:54:44 +01:00
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{
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2002-08-30 02:03:25 +02:00
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return PTR_REAL_TO_LIN(HIWORD(DOS_LOLSeg),0);
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2001-12-04 20:54:44 +01:00
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}
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2000-06-07 04:02:56 +02:00
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1999-05-08 12:54:04 +02:00
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1999-05-22 12:41:28 +02:00
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/* the device implementations */
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1999-06-26 20:40:24 +02:00
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static void do_lret(CONTEXT86*ctx)
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1999-05-22 12:41:28 +02:00
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{
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2000-09-26 01:53:07 +02:00
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WORD *stack = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegSs, ctx->Esp);
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1999-05-22 12:41:28 +02:00
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2000-09-26 01:53:07 +02:00
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ctx->Eip = *(stack++);
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ctx->SegCs = *(stack++);
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ctx->Esp += 2*sizeof(WORD);
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1999-05-22 12:41:28 +02:00
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}
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1999-06-26 20:40:24 +02:00
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static void do_strategy(CONTEXT86*ctx, int id, int extra)
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1999-05-22 12:41:28 +02:00
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{
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2000-09-26 01:53:07 +02:00
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REQUEST_HEADER *hdr = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegEs, ctx->Ebx);
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2000-09-24 22:47:50 +02:00
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void **hdr_ptr = strategy_data[id];
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1999-05-22 12:41:28 +02:00
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if (!hdr_ptr) {
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hdr_ptr = calloc(1,sizeof(void *)+extra);
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2000-09-24 22:47:50 +02:00
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strategy_data[id] = hdr_ptr;
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1999-05-22 12:41:28 +02:00
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}
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*hdr_ptr = hdr;
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do_lret(ctx);
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}
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static REQUEST_HEADER * get_hdr(int id, void**extra)
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{
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2000-09-24 22:47:50 +02:00
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void **hdr_ptr = strategy_data[id];
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1999-05-22 12:41:28 +02:00
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if (extra)
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2008-01-24 22:41:43 +01:00
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*extra = hdr_ptr ? (void*)(hdr_ptr+1) : NULL;
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return hdr_ptr ? *hdr_ptr : NULL;
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1999-05-22 12:41:28 +02:00
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}
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1999-06-26 20:40:24 +02:00
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static void WINAPI nul_strategy(CONTEXT86*ctx)
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1999-05-22 12:41:28 +02:00
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{
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do_strategy(ctx, SYSTEM_STRATEGY_NUL, 0);
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}
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1999-06-26 20:40:24 +02:00
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static void WINAPI nul_interrupt(CONTEXT86*ctx)
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1999-05-22 12:41:28 +02:00
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{
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REQUEST_HEADER *hdr = get_hdr(SYSTEM_STRATEGY_NUL, NULL);
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/* eat everything and recycle nothing */
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switch (hdr->command) {
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case CMD_INPUT:
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((REQ_IO*)hdr)->count = 0;
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hdr->status = STAT_DONE;
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break;
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case CMD_SAFEINPUT:
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hdr->status = STAT_DONE|STAT_BUSY;
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break;
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default:
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hdr->status = STAT_DONE;
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}
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do_lret(ctx);
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}
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1999-06-26 20:40:24 +02:00
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static void WINAPI con_strategy(CONTEXT86*ctx)
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1999-05-22 12:41:28 +02:00
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{
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do_strategy(ctx, SYSTEM_STRATEGY_CON, sizeof(int));
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}
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1999-06-26 20:40:24 +02:00
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static void WINAPI con_interrupt(CONTEXT86*ctx)
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1999-05-22 12:41:28 +02:00
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{
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int *scan;
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REQUEST_HEADER *hdr = get_hdr(SYSTEM_STRATEGY_CON,(void **)&scan);
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2003-09-30 02:22:12 +02:00
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BIOSDATA *bios = DOSVM_BiosData();
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1999-05-22 12:41:28 +02:00
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WORD CurOfs = bios->NextKbdCharPtr;
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DOS_LISTOFLISTS *lol = DOSMEM_LOL();
|
2000-06-07 04:02:56 +02:00
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DOS_DATASEG *dataseg = (DOS_DATASEG *)lol;
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BYTE *linebuffer = dataseg->buffer;
|
1999-05-22 12:41:28 +02:00
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BYTE *curbuffer = (lol->offs_unread_CON) ?
|
2000-06-07 04:02:56 +02:00
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(((BYTE*)dataseg) + lol->offs_unread_CON) : (BYTE*)NULL;
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DOS_DEVICE_HEADER *con = dataseg->dev;
|
2004-12-22 19:38:31 +01:00
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DWORD w;
|
1999-05-22 12:41:28 +02:00
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switch (hdr->command) {
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case CMD_INPUT:
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{
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REQ_IO *io = (REQ_IO *)hdr;
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WORD count = io->count, len = 0;
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BYTE *buffer = CTX_SEG_OFF_TO_LIN(ctx,
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SELECTOROF(io->buffer),
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(DWORD)OFFSETOF(io->buffer));
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hdr->status = STAT_BUSY;
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/* first, check whether we already have data in line buffer */
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if (curbuffer) {
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/* yep, copy as much as we can */
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BYTE data = 0;
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while ((len<count) && (data != '\r')) {
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data = *curbuffer++;
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buffer[len++] = data;
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}
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if (data == '\r') {
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/* line buffer emptied */
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lol->offs_unread_CON = 0;
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curbuffer = NULL;
|
2002-02-27 02:34:08 +01:00
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/* if we're not in raw mode, call it a day */
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1999-05-22 12:41:28 +02:00
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if (!(con->attr & ATTR_RAW)) {
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hdr->status = STAT_DONE;
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io->count = len;
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break;
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}
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} else {
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/* still some data left */
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lol->offs_unread_CON = curbuffer - (BYTE*)lol;
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/* but buffer was filled, we're done */
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hdr->status = STAT_DONE;
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io->count = len;
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break;
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}
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}
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/* if we're in raw mode, we just need to fill the buffer */
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if (con->attr & ATTR_RAW) {
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while (len<count) {
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WORD data;
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/* do we have a waiting scancode? */
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if (*scan) {
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/* yes, store scancode in buffer */
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buffer[len++] = *scan;
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*scan = 0;
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if (len==count) break;
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}
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/* check for new keyboard input */
|
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while (CurOfs == bios->FirstKbdCharPtr) {
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|
|
|
/* no input available yet, so wait... */
|
2003-05-02 22:12:52 +02:00
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DOSVM_Wait( ctx );
|
1999-05-22 12:41:28 +02:00
|
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}
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/* read from keyboard queue (call int16?) */
|
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data = ((WORD*)bios)[CurOfs];
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CurOfs += 2;
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if (CurOfs >= bios->KbdBufferEnd) CurOfs = bios->KbdBufferStart;
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bios->NextKbdCharPtr = CurOfs;
|
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|
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/* if it's an extended key, save scancode */
|
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|
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if (LOBYTE(data) == 0) *scan = HIBYTE(data);
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|
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/* store ASCII char in buffer */
|
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|
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buffer[len++] = LOBYTE(data);
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}
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|
|
|
} else {
|
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|
|
/* we're not in raw mode, so we need to do line input... */
|
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|
|
while (TRUE) {
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WORD data;
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|
|
|
/* check for new keyboard input */
|
|
|
|
while (CurOfs == bios->FirstKbdCharPtr) {
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|
|
|
/* no input available yet, so wait... */
|
2003-05-02 22:12:52 +02:00
|
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DOSVM_Wait( ctx );
|
1999-05-22 12:41:28 +02:00
|
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}
|
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|
|
/* read from keyboard queue (call int16?) */
|
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data = ((WORD*)bios)[CurOfs];
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CurOfs += 2;
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|
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if (CurOfs >= bios->KbdBufferEnd) CurOfs = bios->KbdBufferStart;
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|
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bios->NextKbdCharPtr = CurOfs;
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|
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|
|
|
|
if (LOBYTE(data) == '\r') {
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|
|
/* it's the return key, we're done */
|
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|
linebuffer[len++] = LOBYTE(data);
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|
break;
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|
}
|
|
|
|
else if (LOBYTE(data) >= ' ') {
|
|
|
|
/* a character */
|
|
|
|
if ((len+1)<CON_BUFFER) {
|
|
|
|
linebuffer[len] = LOBYTE(data);
|
2004-12-22 19:38:31 +01:00
|
|
|
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), &linebuffer[len++], 1, &w, NULL);
|
1999-05-22 12:41:28 +02:00
|
|
|
}
|
|
|
|
/* else beep, but I don't like noise */
|
|
|
|
}
|
|
|
|
else switch (LOBYTE(data)) {
|
|
|
|
case '\b':
|
|
|
|
if (len>0) {
|
|
|
|
len--;
|
2004-12-22 19:38:31 +01:00
|
|
|
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), "\b \b", 3, &w, NULL);
|
1999-05-22 12:41:28 +02:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (len > count) {
|
|
|
|
/* save rest of line for later */
|
|
|
|
lol->offs_unread_CON = linebuffer - (BYTE*)lol + count;
|
|
|
|
len = count;
|
|
|
|
}
|
|
|
|
memcpy(buffer, linebuffer, len);
|
|
|
|
}
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
io->count = len;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CMD_SAFEINPUT:
|
|
|
|
if (curbuffer) {
|
|
|
|
/* some line input waiting */
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
((REQ_SAFEINPUT*)hdr)->data = *curbuffer;
|
|
|
|
}
|
|
|
|
else if (con->attr & ATTR_RAW) {
|
|
|
|
if (CurOfs == bios->FirstKbdCharPtr) {
|
|
|
|
/* no input */
|
|
|
|
hdr->status = STAT_DONE|STAT_BUSY;
|
|
|
|
} else {
|
|
|
|
/* some keyboard input waiting */
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
((REQ_SAFEINPUT*)hdr)->data = ((BYTE*)bios)[CurOfs];
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* no line input */
|
|
|
|
hdr->status = STAT_DONE|STAT_BUSY;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CMD_INSTATUS:
|
|
|
|
if (curbuffer) {
|
|
|
|
/* we have data */
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
}
|
|
|
|
else if (con->attr & ATTR_RAW) {
|
|
|
|
if (CurOfs == bios->FirstKbdCharPtr) {
|
|
|
|
/* no input */
|
|
|
|
hdr->status = STAT_DONE|STAT_BUSY;
|
|
|
|
} else {
|
|
|
|
/* some keyboard input waiting */
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* no line input */
|
|
|
|
hdr->status = STAT_DONE|STAT_BUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
case CMD_INFLUSH:
|
|
|
|
/* flush line and keyboard queue */
|
|
|
|
lol->offs_unread_CON = 0;
|
|
|
|
bios->NextKbdCharPtr = bios->FirstKbdCharPtr;
|
|
|
|
break;
|
|
|
|
case CMD_OUTPUT:
|
|
|
|
case CMD_SAFEOUTPUT:
|
|
|
|
{
|
|
|
|
REQ_IO *io = (REQ_IO *)hdr;
|
|
|
|
BYTE *buffer = CTX_SEG_OFF_TO_LIN(ctx,
|
|
|
|
SELECTOROF(io->buffer),
|
|
|
|
(DWORD)OFFSETOF(io->buffer));
|
|
|
|
DWORD result = 0;
|
2000-09-24 22:47:50 +02:00
|
|
|
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buffer, io->count, &result, NULL);
|
1999-05-22 12:41:28 +02:00
|
|
|
io->count = result;
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
hdr->status = STAT_DONE;
|
|
|
|
}
|
|
|
|
do_lret(ctx);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void InitListOfLists(DOS_LISTOFLISTS *DOS_LOL)
|
1999-05-08 12:54:04 +02:00
|
|
|
{
|
|
|
|
/*
|
|
|
|
Output of DOS 6.22:
|
|
|
|
|
|
|
|
0133:0020 6A 13-33 01 CC 00 33 01 59 00 j.3...3.Y.
|
|
|
|
0133:0030 70 00 00 00 72 02 00 02-6D 00 33 01 00 00 2E 05 p...r...m.3.....
|
|
|
|
0133:0040 00 00 FC 04 00 00 03 08-92 21 11 E0 04 80 C6 0D .........!......
|
|
|
|
0133:0050 CC 0D 4E 55 4C 20 20 20-20 20 00 00 00 00 00 00 ..NUL ......
|
|
|
|
0133:0060 00 4B BA C1 06 14 00 00-00 03 01 00 04 70 CE FF .K...........p..
|
|
|
|
0133:0070 FF 00 00 00 00 00 00 00-00 01 00 00 0D 05 00 00 ................
|
|
|
|
0133:0080 00 FF FF 00 00 00 00 FE-00 00 F8 03 FF 9F 70 02 ..............p.
|
|
|
|
0133:0090 D0 44 C8 FD D4 44 C8 FD-D4 44 C8 FD D0 44 C8 FD .D...D...D...D..
|
|
|
|
0133:00A0 D0 44 C8 FD D0 44 .D...D
|
|
|
|
*/
|
|
|
|
DOS_LOL->CX_Int21_5e01 = 0x0;
|
|
|
|
DOS_LOL->LRU_count_FCB_cache = 0x0;
|
|
|
|
DOS_LOL->LRU_count_FCB_open = 0x0;
|
|
|
|
DOS_LOL->OEM_func_handler = -1; /* not available */
|
|
|
|
DOS_LOL->INT21_offset = 0x0;
|
|
|
|
DOS_LOL->sharing_retry_count = 3;
|
|
|
|
DOS_LOL->sharing_retry_delay = 1;
|
|
|
|
DOS_LOL->ptr_disk_buf = 0x0;
|
|
|
|
DOS_LOL->offs_unread_CON = 0x0;
|
|
|
|
DOS_LOL->seg_first_MCB = 0x0;
|
|
|
|
DOS_LOL->ptr_first_DPB = 0x0;
|
|
|
|
DOS_LOL->ptr_first_SysFileTable = 0x0;
|
|
|
|
DOS_LOL->ptr_clock_dev_hdr = 0x0;
|
|
|
|
DOS_LOL->ptr_CON_dev_hdr = 0x0;
|
|
|
|
DOS_LOL->max_byte_per_sec = 512;
|
|
|
|
DOS_LOL->ptr_disk_buf_info = 0x0;
|
|
|
|
DOS_LOL->ptr_array_CDS = 0x0;
|
|
|
|
DOS_LOL->ptr_sys_FCB = 0x0;
|
|
|
|
DOS_LOL->nr_protect_FCB = 0x0;
|
|
|
|
DOS_LOL->nr_block_dev = 0x0;
|
|
|
|
DOS_LOL->nr_avail_drive_letters = 26; /* A - Z */
|
|
|
|
DOS_LOL->nr_drives_JOINed = 0x0;
|
|
|
|
DOS_LOL->ptr_spec_prg_names = 0x0;
|
|
|
|
DOS_LOL->ptr_SETVER_prg_list = 0x0; /* no SETVER list */
|
|
|
|
DOS_LOL->DOS_HIGH_A20_func_offs = 0x0;
|
|
|
|
DOS_LOL->PSP_last_exec = 0x0;
|
|
|
|
DOS_LOL->BUFFERS_val = 99; /* maximum: 99 */
|
|
|
|
DOS_LOL->BUFFERS_nr_lookahead = 8; /* maximum: 8 */
|
|
|
|
DOS_LOL->boot_drive = 3; /* C: */
|
|
|
|
DOS_LOL->flag_DWORD_moves = 0x01; /* i386+ */
|
|
|
|
DOS_LOL->size_extended_mem = 0xf000; /* very high value */
|
|
|
|
}
|
|
|
|
|
2006-04-11 10:36:08 +02:00
|
|
|
void DOSDEV_SetupDevice(const WINEDEV * devinfo,
|
|
|
|
WORD seg, WORD off_dev, WORD off_thunk)
|
|
|
|
{
|
|
|
|
DOS_DEVICE_HEADER *dev = PTR_REAL_TO_LIN(seg, off_dev);
|
|
|
|
WINEDEV_THUNK *thunk = PTR_REAL_TO_LIN(seg, off_thunk);
|
|
|
|
DOS_DATASEG *dataseg = (DOS_DATASEG*)DOSMEM_LOL();
|
|
|
|
|
|
|
|
dev->attr = devinfo->attr;
|
|
|
|
dev->strategy = off_thunk + FIELD_OFFSET(WINEDEV_THUNK, ljmp1);
|
|
|
|
dev->interrupt = off_thunk + FIELD_OFFSET(WINEDEV_THUNK, ljmp2);
|
|
|
|
memcpy(dev->name, devinfo->name, 8);
|
|
|
|
|
|
|
|
thunk->ljmp1 = LJMP;
|
|
|
|
thunk->strategy = DPMI_AllocInternalRMCB(devinfo->strategy);
|
|
|
|
thunk->ljmp2 = LJMP;
|
|
|
|
thunk->interrupt = DPMI_AllocInternalRMCB(devinfo->interrupt);
|
|
|
|
|
|
|
|
dev->next_dev = NONEXT;
|
|
|
|
if (dataseg->last_dev)
|
|
|
|
dataseg->last_dev->next_dev = MAKESEGPTR(seg, off_dev);
|
|
|
|
dataseg->last_dev = dev;
|
|
|
|
}
|
|
|
|
|
1999-05-08 12:54:04 +02:00
|
|
|
void DOSDEV_InstallDOSDevices(void)
|
|
|
|
{
|
2000-06-07 04:02:56 +02:00
|
|
|
DOS_DATASEG *dataseg;
|
2002-12-08 00:46:41 +01:00
|
|
|
WORD seg;
|
|
|
|
WORD selector;
|
2000-11-01 04:11:12 +01:00
|
|
|
unsigned int n;
|
1999-05-08 12:54:04 +02:00
|
|
|
|
|
|
|
/* allocate DOS data segment or something */
|
2002-12-08 00:46:41 +01:00
|
|
|
dataseg = DOSVM_AllocDataUMB( sizeof(DOS_DATASEG), &seg, &selector );
|
|
|
|
|
|
|
|
DOS_LOLSeg = MAKESEGPTR( seg, 0 );
|
|
|
|
DOSMEM_LOL()->wine_rm_lol =
|
|
|
|
MAKESEGPTR( seg, FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB) );
|
|
|
|
DOSMEM_LOL()->wine_pm_lol =
|
|
|
|
MAKESEGPTR( selector, FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB) );
|
1999-05-08 12:54:04 +02:00
|
|
|
|
1999-05-22 12:41:28 +02:00
|
|
|
/* initialize the magnificent List Of Lists */
|
2000-06-07 04:02:56 +02:00
|
|
|
InitListOfLists(&dataseg->lol);
|
|
|
|
|
|
|
|
/* Set up first device (NUL) */
|
2006-04-11 10:36:08 +02:00
|
|
|
dataseg->last_dev = NULL;
|
|
|
|
DOSDEV_SetupDevice( &devs[0],
|
|
|
|
seg,
|
|
|
|
DOS_DATASEG_OFF(lol.NUL_dev),
|
|
|
|
DOS_DATASEG_OFF(thunk[0]) );
|
2000-06-07 04:02:56 +02:00
|
|
|
|
|
|
|
/* Set up the remaining devices */
|
|
|
|
for (n = 1; n < NR_DEVS; n++)
|
2006-04-11 10:36:08 +02:00
|
|
|
DOSDEV_SetupDevice( &devs[n],
|
|
|
|
seg,
|
|
|
|
DOS_DATASEG_OFF(dev[n-1]),
|
|
|
|
DOS_DATASEG_OFF(thunk[n]) );
|
2000-06-07 04:02:56 +02:00
|
|
|
|
|
|
|
/* CON is device 1 */
|
2000-12-13 21:20:09 +01:00
|
|
|
dataseg->lol.ptr_CON_dev_hdr = MAKESEGPTR(seg, DOS_DATASEG_OFF(dev[0]));
|
1999-05-08 12:54:04 +02:00
|
|
|
}
|
1999-05-22 12:41:28 +02:00
|
|
|
|
|
|
|
DWORD DOSDEV_Console(void)
|
|
|
|
{
|
|
|
|
return DOSMEM_LOL()->ptr_CON_dev_hdr;
|
|
|
|
}
|
|
|
|
|
|
|
|
DWORD DOSDEV_FindCharDevice(char*name)
|
|
|
|
{
|
2000-12-13 21:20:09 +01:00
|
|
|
SEGPTR cur_ptr = MAKESEGPTR(HIWORD(DOS_LOLSeg), FIELD_OFFSET(DOS_LISTOFLISTS,NUL_dev));
|
2002-08-30 02:03:25 +02:00
|
|
|
DOS_DEVICE_HEADER *cur = PTR_REAL_TO_LIN(SELECTOROF(cur_ptr),OFFSETOF(cur_ptr));
|
1999-05-22 12:41:28 +02:00
|
|
|
char dname[8];
|
|
|
|
int cnt;
|
|
|
|
|
|
|
|
/* get first 8 characters */
|
|
|
|
/* if less than 8 characters, pad with spaces */
|
2005-04-18 17:36:20 +02:00
|
|
|
for (cnt=0; name[cnt] && cnt<8; cnt++)
|
|
|
|
dname[cnt]=name[cnt];
|
|
|
|
|
|
|
|
while(cnt<8) dname[cnt++] = ' ';
|
1999-05-22 12:41:28 +02:00
|
|
|
|
|
|
|
/* search for char devices with the right name */
|
|
|
|
while (cur &&
|
|
|
|
((!(cur->attr & ATTR_CHAR)) ||
|
|
|
|
memcmp(cur->name,dname,8))) {
|
|
|
|
cur_ptr = cur->next_dev;
|
|
|
|
if (cur_ptr == NONEXT) cur=NULL;
|
2002-08-30 02:03:25 +02:00
|
|
|
else cur = PTR_REAL_TO_LIN(SELECTOROF(cur_ptr),OFFSETOF(cur_ptr));
|
1999-05-22 12:41:28 +02:00
|
|
|
}
|
|
|
|
return cur_ptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void DOSDEV_DoReq(void*req, DWORD dev)
|
|
|
|
{
|
|
|
|
REQUEST_HEADER *hdr = (REQUEST_HEADER *)req;
|
|
|
|
DOS_DEVICE_HEADER *dhdr;
|
1999-06-26 20:40:24 +02:00
|
|
|
CONTEXT86 ctx;
|
1999-05-22 12:41:28 +02:00
|
|
|
char *phdr;
|
|
|
|
|
2002-08-30 02:03:25 +02:00
|
|
|
dhdr = PTR_REAL_TO_LIN(SELECTOROF(dev),OFFSETOF(dev));
|
2000-06-07 04:02:56 +02:00
|
|
|
phdr = ((char*)DOSMEM_LOL()) + DOS_DATASEG_OFF(req);
|
1999-05-22 12:41:28 +02:00
|
|
|
|
|
|
|
/* copy request to request scratch area */
|
|
|
|
memcpy(phdr, req, hdr->size);
|
|
|
|
|
|
|
|
/* prepare to call device driver */
|
|
|
|
memset(&ctx, 0, sizeof(ctx));
|
2003-08-25 03:01:01 +02:00
|
|
|
ctx.EFlags |= V86_FLAG;
|
1999-05-22 12:41:28 +02:00
|
|
|
|
|
|
|
/* ES:BX points to request for strategy routine */
|
2000-09-26 01:53:07 +02:00
|
|
|
ctx.SegEs = HIWORD(DOS_LOLSeg);
|
|
|
|
ctx.Ebx = DOS_DATASEG_OFF(req);
|
1999-05-22 12:41:28 +02:00
|
|
|
|
|
|
|
/* call strategy routine */
|
2000-09-26 01:53:07 +02:00
|
|
|
ctx.SegCs = SELECTOROF(dev);
|
|
|
|
ctx.Eip = dhdr->strategy;
|
1999-05-22 12:41:28 +02:00
|
|
|
DPMI_CallRMProc(&ctx, 0, 0, 0);
|
|
|
|
|
|
|
|
/* call interrupt routine */
|
2000-09-26 01:53:07 +02:00
|
|
|
ctx.SegCs = SELECTOROF(dev);
|
|
|
|
ctx.Eip = dhdr->interrupt;
|
1999-05-22 12:41:28 +02:00
|
|
|
DPMI_CallRMProc(&ctx, 0, 0, 0);
|
|
|
|
|
|
|
|
/* completed, copy request back */
|
|
|
|
memcpy(req, phdr, hdr->size);
|
|
|
|
|
|
|
|
if (hdr->status & STAT_ERROR) {
|
|
|
|
switch (hdr->status & STAT_MASK) {
|
|
|
|
case 0x0F: /* invalid disk change */
|
|
|
|
/* this error seems to fit the bill */
|
2003-11-15 01:13:20 +01:00
|
|
|
SetLastError(ERROR_NOT_SAME_DEVICE);
|
1999-05-22 12:41:28 +02:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
SetLastError((hdr->status & STAT_MASK) + 0x13);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int DOSDEV_IO(unsigned cmd, DWORD dev, DWORD buf, int buflen)
|
|
|
|
{
|
|
|
|
REQ_IO req;
|
|
|
|
|
|
|
|
req.hdr.size=sizeof(req);
|
|
|
|
req.hdr.unit=0; /* not dealing with block devices yet */
|
|
|
|
req.hdr.command=cmd;
|
|
|
|
req.hdr.status=STAT_BUSY;
|
|
|
|
req.media=0; /* not dealing with block devices yet */
|
|
|
|
req.buffer=buf;
|
|
|
|
req.count=buflen;
|
|
|
|
req.sector=0; /* block devices */
|
|
|
|
req.volume=0; /* block devices */
|
|
|
|
|
|
|
|
DOSDEV_DoReq(&req, dev);
|
|
|
|
|
|
|
|
return req.count;
|
|
|
|
}
|
|
|
|
|
|
|
|
int DOSDEV_Peek(DWORD dev, BYTE*data)
|
|
|
|
{
|
|
|
|
REQ_SAFEINPUT req;
|
|
|
|
|
|
|
|
req.hdr.size=sizeof(req);
|
|
|
|
req.hdr.unit=0; /* not dealing with block devices yet */
|
|
|
|
req.hdr.command=CMD_SAFEINPUT;
|
|
|
|
req.hdr.status=STAT_BUSY;
|
|
|
|
req.data=0;
|
|
|
|
|
|
|
|
DOSDEV_DoReq(&req, dev);
|
|
|
|
|
|
|
|
if (req.hdr.status & STAT_BUSY) return 0;
|
|
|
|
|
|
|
|
*data = req.data;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
int DOSDEV_Read(DWORD dev, DWORD buf, int buflen)
|
|
|
|
{
|
|
|
|
return DOSDEV_IO(CMD_INPUT, dev, buf, buflen);
|
|
|
|
}
|
|
|
|
|
|
|
|
int DOSDEV_Write(DWORD dev, DWORD buf, int buflen, int verify)
|
|
|
|
{
|
|
|
|
return DOSDEV_IO(verify?CMD_SAFEOUTPUT:CMD_OUTPUT, dev, buf, buflen);
|
|
|
|
}
|
|
|
|
|
|
|
|
int DOSDEV_IoctlRead(DWORD dev, DWORD buf, int buflen)
|
|
|
|
{
|
|
|
|
return DOSDEV_IO(CMD_INIOCTL, dev, buf, buflen);
|
|
|
|
}
|
|
|
|
|
|
|
|
int DOSDEV_IoctlWrite(DWORD dev, DWORD buf, int buflen)
|
|
|
|
{
|
|
|
|
return DOSDEV_IO(CMD_OUTIOCTL, dev, buf, buflen);
|
|
|
|
}
|
2003-11-15 01:13:20 +01:00
|
|
|
|
|
|
|
void DOSDEV_SetSharingRetry(WORD delay, WORD count)
|
|
|
|
{
|
|
|
|
DOSMEM_LOL()->sharing_retry_delay = delay;
|
|
|
|
if (count) DOSMEM_LOL()->sharing_retry_count = count;
|
|
|
|
}
|
|
|
|
|
|
|
|
SEGPTR DOSDEV_GetLOL(BOOL v86)
|
|
|
|
{
|
|
|
|
if (v86) return DOSMEM_LOL()->wine_rm_lol;
|
|
|
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else return DOSMEM_LOL()->wine_pm_lol;
|
|
|
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}
|