tyler.durden
/
kernel
mirror of https://github.com/FDOS/kernel.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

(mostly from Lucho) deal with the correct structure for generic and 

query ioctls. Fixes issues with 3rd party device drivers (or ones that use
dsk.c)


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@965 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-05-28 12:57:41 +00:00
parent 0168037d73
commit dace548223
3 changed files with 65 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
hdr/device.h
View File

@ -366,6 +366,19 @@ typedef struct {
struct {
unsigned char _r_ndbyte; /* Byte Read From Device */
} _r_nd;
struct {
UBYTE _r_cat; /* Category code */
UBYTE _r_fun; /* Function code */
UBYTE unused[4]; /* SI or DI contents or DS:reqhdr */
union
{
struct gblkio FAR *_r_io;
struct gblkrw FAR *_r_rw;
struct gblkfv FAR *_r_fv;
struct Gioc_media FAR *_r_gioc;
struct Access_info FAR *_r_ai;
} _r_par; /* Pointer to param. block from 440C/440D */
} _r_gen;
} _r_x;
} request;
@ -403,6 +416,15 @@ typedef struct {
/* ndread packet macros */
#define r_ndbyte _r_x._r_nd._r_ndbyte
/* generic IOCTL and IOCTL query macros */
#define r_cat _r_x._r_gen._r_cat
#define r_fun _r_x._r_gen._r_fun
#define r_rw _r_x._r_gen._r_par._r_rw
#define r_io _r_x._r_gen._r_par._r_io
#define r_fv _r_x._r_gen._r_par._r_fv
#define r_gioc _r_x._r_gen._r_par._r_gioc
#define r_ai _r_x._r_gen._r_par._r_ai
/*
*interrupt support (spl & splx) support - IBM style
*/

52
kernel/dsk.c
View File

@ -472,19 +472,23 @@ STATIC WORD IoctlQueblk(rqptr rp, ddt * pddt)
{
UNREFERENCED_PARAMETER(pddt);
switch (rp->r_count)
#ifdef WITHFAT32
if (rp->r_cat == 8 || rp->r_cat == 0x48)
#else
if (rp->r_cat == 8)
#endif
{
case 0x0846:
case 0x0847:
case 0x0860:
case 0x0866:
case 0x0867:
break;
default:
return failure(E_CMD);
switch (rp->r_fun)
{
case 0x46:
case 0x47:
case 0x60:
case 0x66:
case 0x67:
return S_DONE;
}
}
return S_DONE;
return failure(E_CMD);
}
STATIC COUNT Genblockio(ddt * pddt, UWORD mode, WORD head, WORD track,
@ -506,18 +510,18 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
#ifdef WITHFAT32
int extended = 0;
if ((rp->r_count >> 8) == 0x48)
if (rp->r_cat == 0x48)
extended = 1;
else
#endif
if ((rp->r_count >> 8) != 8)
if (rp->r_cat != 8)
return failure(E_CMD);
switch (rp->r_count & 0xff)
switch (rp->r_fun)
{
case 0x40: /* set device parameters */
{
struct gblkio FAR *gblp = (struct gblkio FAR *)rp->r_trans;
struct gblkio FAR *gblp = rp->r_io;
bpb *pbpb;
pddt->ddt_type = gblp->gbio_devtype;
@ -539,7 +543,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
}
case 0x41: /* write track */
{
struct gblkrw FAR *rw = (struct gblkrw FAR *)rp->r_trans;
struct gblkrw FAR *rw = rp->r_rw;
ret = Genblockio(pddt, LBA_WRITE, rw->gbrw_head, rw->gbrw_cyl,
rw->gbrw_sector, rw->gbrw_nsecs, rw->gbrw_buffer);
if (ret != 0)
@ -548,7 +552,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
break;
case 0x42: /* format/verify track */
{
struct gblkfv FAR *fv = (struct gblkfv FAR *)rp->r_trans;
struct gblkfv FAR *fv = rp->r_fv;
COUNT tracks;
struct thst {
UBYTE track, head, sector, type;
@ -650,7 +654,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
case 0x62: /* verify track */
{
struct gblkfv FAR *fv = (struct gblkfv FAR *)rp->r_trans;
struct gblkfv FAR *fv = rp->r_fv;
ret = Genblockio(pddt, LBA_VERIFY, fv->gbfv_head, fv->gbfv_cyl, 0,
(fv->gbfv_spcfunbit ?
@ -663,7 +667,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
break;
case 0x46: /* set volume serial number */
{
struct Gioc_media FAR *gioc = (struct Gioc_media FAR *)rp->r_trans;
struct Gioc_media FAR *gioc = rp->r_gioc;
struct FS_info *fs;
ret = getbpb(pddt);
@ -682,14 +686,14 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
break;
case 0x47: /* set access flag */
{
struct Access_info FAR *ai = (struct Access_info FAR *)rp->r_trans;
struct Access_info FAR *ai = rp->r_ai;
pddt->ddt_descflags = (descflags & ~DF_NOACCESS) |
(ai->AI_Flag ? 0 : DF_NOACCESS);
}
break;
case 0x60: /* get device parameters */
{
struct gblkio FAR *gblp = (struct gblkio FAR *)rp->r_trans;
struct gblkio FAR *gblp = rp->r_io;
bpb *pbpb;
gblp->gbio_devtype = pddt->ddt_type;
@ -712,7 +716,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
}
case 0x61: /* read track */
{
struct gblkrw FAR *rw = (struct gblkrw FAR *)rp->r_trans;
struct gblkrw FAR *rw = rp->r_rw;
ret = Genblockio(pddt, LBA_READ, rw->gbrw_head, rw->gbrw_cyl,
rw->gbrw_sector, rw->gbrw_nsecs, rw->gbrw_buffer);
if (ret != 0)
@ -721,7 +725,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
break;
case 0x66: /* get volume serial number */
{
struct Gioc_media FAR *gioc = (struct Gioc_media FAR *)rp->r_trans;
struct Gioc_media FAR *gioc = rp->r_gioc;
ret = getbpb(pddt);
if (ret != 0)
@ -734,7 +738,7 @@ STATIC WORD Genblkdev(rqptr rp, ddt * pddt)
break;
case 0x67: /* get access flag */
{
struct Access_info FAR *ai = (struct Access_info FAR *)rp->r_trans;
struct Access_info FAR *ai = rp->r_ai;
ai->AI_Flag = descflags & DF_NOACCESS ? 0 : 1; /* bit 9 */
}
break;

18
kernel/ioctl.c
View File

@ -59,13 +59,25 @@ COUNT DosDevIOctl(lregs * r)
sft FAR *s;
struct dpb FAR *dpbp;
COUNT nMode;
unsigned char al = r->AL;
if (al > 0x11)
return DE_INVLDFUNC;
/* commonly used, shouldn't harm to do front up */
if (al == 0x0C || al == 0x0D || al >= 0x10) /* generic or query */
{
CharReqHdr.r_cat = r->CH; /* category (major) code */
CharReqHdr.r_fun = r->CL; /* function (minor) code */
CharReqHdr.r_io = MK_FP(r->DS, r->DX); /* parameter block */
}
else
{
CharReqHdr.r_count = r->CX;
CharReqHdr.r_trans = MK_FP(r->DS, r->DX);
}
CharReqHdr.r_length = sizeof(request);
CharReqHdr.r_trans = MK_FP(r->DS, r->DX);
CharReqHdr.r_status = 0;
CharReqHdr.r_count = r->CX;
/* Test that the handle is valid */
switch (r->AL)