/* Remote serial interface using Hitachi E7000 PC ISA card in a PC
-
- Copyright 1994 Free Software Foundation, Inc.
+ Copyright 1994, 1999, 2000 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
-#ifdef __GO32__
+#if defined __GO32__ || defined _WIN32
#include "defs.h"
#include "serial.h"
-#include <sys/dos.h>
+#include "gdb_string.h"
+/* MSVC uses strnicmp instead of strncasecmp */
+#ifdef _MSC_VER
+#define strncasecmp strnicmp
+#define WIN32_LEAN_AND_MEAN
+#endif
+#ifdef _WIN32
+#include <windows.h>
+#endif
-static int e7000pc_open PARAMS ((serial_t scb, const char *name));
-static void e7000pc_raw PARAMS ((serial_t scb));
-static int e7000pc_readchar PARAMS ((serial_t scb, int timeout));
-static int e7000pc_setbaudrate PARAMS ((serial_t scb, int rate));
-static int e7000pc_write PARAMS ((serial_t scb, const char *str, int len));
-static void e7000pc_close PARAMS ((serial_t scb));
-static serial_ttystate e7000pc_get_tty_state PARAMS ((serial_t scb));
-static int e7000pc_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
-static char *aptr PARAMS ((short p));
-
-static int dos_async_init PARAMS ((int port));
-static void dos_async_tx PARAMS ((const char c));
-static int dos_async_rx PARAMS (());
-
+#ifdef __GO32__
+#include <sys/dos.h>
+#endif
+static int e7000pc_open (serial_t scb, const char *name);
+static void e7000pc_raw (serial_t scb);
+static int e7000pc_readchar (serial_t scb, int timeout);
+static int e7000pc_setbaudrate (serial_t scb, int rate);
+static int e7000pc_write (serial_t scb, const char *str, int len);
+static void e7000pc_close (serial_t scb);
+static serial_ttystate e7000pc_get_tty_state (serial_t scb);
+static int e7000pc_set_tty_state (serial_t scb, serial_ttystate state);
#define OFF_DPD 0x0000
#define OFF_DDP 0x1000
#define OFF_READY 0x300c
#define OFF_PON 0x300e
-#define IDLE 0x0000
-#define CMD_CI 0x4349
-#define CMD_CO 0x434f
-#define CMD_LO 0x4c4f
-#define CMD_LS 0x4c53
-#define CMD_SV 0x5356
-#define CMD_SS 0x5353
-#define CMD_OK 0x4f4b
-#define CMD_ER 0x4552
-#define CMD_NF 0x4e46
-#define CMD_AB 0x4142
-#define CMD_ED 0x4544
-#define CMD_CE 0x4345
+#define IDLE 0x0000
+#define CMD_CI 0x4349
+#define CMD_CO 0x434f
+#define CMD_LO 0x4c4f
+#define CMD_LS 0x4c53
+#define CMD_SV 0x5356
+#define CMD_SS 0x5353
+#define CMD_OK 0x4f4b
+#define CMD_ER 0x4552
+#define CMD_NF 0x4e46
+#define CMD_AB 0x4142
+#define CMD_ED 0x4544
+#define CMD_CE 0x4345
static unsigned long fa;
static unsigned long irqtod;
static unsigned long ready;
static unsigned long fb;
-static unsigned long cpd ;
-static unsigned long cdp ;
+static unsigned long cpd;
+static unsigned long cdp;
static unsigned long ready;
static unsigned long pon;
static unsigned long irqtop;
static unsigned long board_at;
+#ifdef __GO32__
+
#define SET_BYTE(x,y) { char _buf = y;dosmemput(&_buf,1, x);}
#define SET_WORD(x,y) { short _buf = y;dosmemput(&_buf,2, x);}
#define GET_BYTE(x) ( dosmemget(x,1,&bb), bb)
#define GET_WORD(x) ( dosmemget(x,2,&sb), sb)
-
static unsigned char bb;
static unsigned short sb;
+#else /* win32 */
+
+#define SET_BYTE(x,y) *(volatile unsigned char *)(x) = (y)
+#define SET_WORD(x,y) *(volatile unsigned short *)(x) = (y)
+#define GET_BYTE(x) (*(volatile unsigned char *)(x))
+#define GET_WORD(x) (*(volatile unsigned short *)(x))
+#define dosmemget(FROM, LEN, TO) memcpy ((void *)(TO), (void *)(FROM), (LEN))
+#define dosmemput(FROM, LEN, TO) memcpy ((void *)(TO), (void *)(FROM), (LEN))
+#endif
+
+static struct sw
+ {
+ int sw;
+ int addr;
+ }
+sigs[] =
+{
+ {
+ 0x14, 0xd0000
+ }
+ ,
+ {
+ 0x15, 0xd4000
+ }
+ ,
+ {
+ 0x16, 0xd8000
+ }
+ ,
+ {
+ 0x17, 0xdc000
+ }
+ ,
+ 0
+};
+
+#ifdef _MSC_VER
+/* Get the base of the data segment. This is needed to calculate the offset
+ between data segment addresses and the base of linear memory, which is where
+ device registers reside. Note that this is really only necessary for
+ Win32s, since Win95 and NT keep the data segment at linear 0. */
-static struct sw
+static unsigned long
+get_ds_base (void)
{
- int sw;
- int addr;
-} sigs[] = {
- {0x14, 0xd0000},
- {0x15, 0xd4000},
- {0x16, 0xd8000},
- {0x17, 0xdc000},
- 0};
+ unsigned short dsval;
+ LDT_ENTRY ldt;
+ unsigned long dsbase;
+
+ __asm
+ {
+ mov dsval, ds
+ }
+
+ dsbase = 0;
+
+ GetThreadSelectorEntry (GetCurrentThread (), dsval, &ldt);
+
+ dsbase = ldt.HighWord.Bits.BaseHi << 24 | ldt.HighWord.Bits.BaseMid << 16
+ | ldt.BaseLow;
+
+ return dsbase;
+}
+#else /* !_MSC_VER */
+#define get_ds_base() 0
+#endif /* _MSC_VER */
static int
e7000pc_init ()
{
+ int try;
+ unsigned long dsbase;
+
+ dsbase = get_ds_base ();
+
/* Look around in memory for the board's signature */
- int try;
-
for (try = 0; sigs[try].sw; try++)
-
{
int val;
- board_at = sigs[try].addr;
+ board_at = sigs[try].addr - dsbase;
fa = board_at + OFF_FA;
fb = board_at + OFF_FB;
cpd = board_at + OFF_CPD;
cdp = board_at + OFF_CDP;
- ready =board_at + OFF_READY;
- pon = board_at + OFF_PON;
+ ready = board_at + OFF_READY;
+ pon = board_at + OFF_PON;
irqtop = board_at + OFF_IRQTOP;
irqtod = board_at + OFF_IRQTOD;
-
+
val = GET_WORD (ready);
- if (val == (0xaaa0 | sigs[try].sw))
+ if (val == (0xaaa0 | sigs[try].sw))
{
- if (GET_BYTE (pon) & 0xf)
+ if (GET_WORD (pon) & 0xf)
{
- SET_BYTE(fa, 0);
- SET_BYTE (fb, 0);
+ SET_WORD (fa, 0);
+ SET_WORD (fb, 0);
- SET_BYTE (irqtop, 1); /* Disable interrupts from e7000 */
+ SET_WORD (irqtop, 1); /* Disable interrupts from e7000 */
SET_WORD (ready, 1);
- printf_filtered ("\nConnected to the E7000PC at address 0x%x\n",
+ printf_filtered ("\nConnected to the E7000PC at address 0x%x\n",
sigs[try].addr);
- return 1;
+ return 1;
}
error ("The E7000 PC board is working, but the E7000 is turned off.\n");
return 0;
static int pbuf_size;
static int pbuf_index;
-static
-int
-e7000_get ()
+/* Return next byte from cdp. If no more, then return -1. */
+
+static int
+e7000_get (void)
{
static char pbuf[1000];
char tmp[1000];
int x;
- if (pbuf_index < pbuf_size)
+
+ if (pbuf_index < pbuf_size)
{
x = pbuf[pbuf_index++];
}
- else if ((GET_BYTE (fb) & 1))
+ else if ((GET_WORD (fb) & 1))
{
int i;
- pbuf_size = GET_WORD(cdp + 2);
+ pbuf_size = GET_WORD (cdp + 2);
dosmemget (cdp + 8, pbuf_size + 1, tmp);
/* Tell the E7000 we've eaten */
- SET_BYTE(fb,0);
+ SET_WORD (fb, 0);
/* Swap it around */
- for (i = 0; i < pbuf_size; i++)
+ for (i = 0; i < pbuf_size; i++)
{
- pbuf[i] = tmp[i^1];
+ pbuf[i] = tmp[i ^ 1];
}
pbuf_index = 0;
- x = pbuf[pbuf_index++];
+ x = pbuf[pbuf_index++];
}
- else
- {
+ else
+ {
x = -1;
}
return x;
}
+/* Works just like read(), except that it takes a TIMEOUT in seconds. Note
+ that TIMEOUT == 0 is a poll, and TIMEOUT == -1 means wait forever. */
+
static int
dosasync_read (fd, buf, len, timeout)
int fd;
long now;
long then;
int i = 0;
- int p;
/* Then look for some more if we're still hungry */
time (&now);
then = now + timeout;
while (i < len)
{
- int ch = e7000_get();
-
+ int ch = e7000_get ();
+
/* While there's room in the buffer, and we've already
- read the stuff in, suck it over */
- if (ch != -1)
+ read the stuff in, suck it over */
+ if (ch != -1)
{
buf[i++] = ch;
- while (i < len && pbuf_index < pbuf_size )
+ while (i < len && pbuf_index < pbuf_size)
{
- ch = e7000_get();
+ ch = e7000_get ();
if (ch == -1)
break;
buf[i++] = ch;
int len;
{
int i;
- char dummy[1000];
+ char dummy[1000];
-
/* Construct copy locally */
- ((short *)dummy)[0] = CMD_CI;
- ((short *)dummy)[1] = len;
- ((short *)dummy)[2] = 0;
- ((short *)dummy)[3] = 0;
- for (i = 0; i < len ; i++)
+ ((short *) dummy)[0] = CMD_CI;
+ ((short *) dummy)[1] = len;
+ ((short *) dummy)[2] = 0;
+ ((short *) dummy)[3] = 0;
+ for (i = 0; i < len; i++)
{
- dummy[8 + i ^ 1] = buf[i];
+ dummy[(8 + i) ^ 1] = buf[i];
}
/* Wait for the card to get ready */
- while ((GET_BYTE(fa) & 1) != 0)
- ;
+ while (GET_WORD (fa) & 1);
/* Blast onto the ISA card */
- dosmemput (dummy, 8 + len + 1, cpd);
+ dosmemput (dummy, 8 + len + 1, cpd);
- SET_BYTE(fa, 1);
- SET_BYTE(irqtod, 1); /* Interrupt the E7000 */
+ SET_WORD (fa, 1);
+ SET_WORD (irqtod, 1); /* Interrupt the E7000 */
return len;
}
{
char buf;
- top:
+top:
if (dosasync_read (scb->fd, &buf, 1, timeout))
{
- if (buf == 0) goto top;
+ if (buf == 0)
+ goto top;
return buf;
}
else
return SERIAL_TIMEOUT;
}
-struct e7000pc_ttystate {
+struct e7000pc_ttystate
+{
int dummy;
};
}
static void
-e7000pc_print_tty_state (scb, ttystate)
- serial_t scb;
- serial_ttystate ttystate;
+e7000pc_print_tty_state (serial_t scb,
+ serial_ttystate ttystate,
+ struct ui_file *stream)
{
/* Nothing to print. */
return;
e7000pc_print_tty_state,
e7000pc_noflush_set_tty_state,
e7000pc_setbaudrate,
+ e7000pc_noop, /* wait for output to drain */
};
void
projects / binutils.git / blobdiff