mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
a3efda28be
* rdi-share/serpardr.c: Ditto. * rdi-share/unixcomm.c: Ditto. * rdi-share/serdrv.c: Ditto. * rdi-share/hostchan.h: Ditto. * rdi-share/hostchan.c: Ditto. * rdi-share/host.h: Ditto. * rdi-share/devsw.c: Ditto.
613 lines
16 KiB
C
613 lines
16 KiB
C
/*
|
|
* Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
|
|
*
|
|
* This software may be freely used, copied, modified, and distributed
|
|
* provided that the above copyright notice is preserved in all copies of the
|
|
* software.
|
|
*/
|
|
|
|
/* -*-C-*-
|
|
*
|
|
* $Revision$
|
|
* $Date$
|
|
*
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
|
|
#include "adp.h"
|
|
#include "sys.h"
|
|
#include "hsys.h"
|
|
#include "rxtx.h"
|
|
#include "drivers.h"
|
|
#include "buffers.h"
|
|
#include "devclnt.h"
|
|
#include "adperr.h"
|
|
#include "devsw.h"
|
|
#include "hostchan.h"
|
|
#include "logging.h"
|
|
|
|
static char *angelDebugFilename = NULL;
|
|
static FILE *angelDebugLogFile = NULL;
|
|
static int angelDebugLogEnable = 0;
|
|
|
|
static void openLogFile ()
|
|
{
|
|
time_t t;
|
|
|
|
if (angelDebugFilename == NULL || *angelDebugFilename =='\0')
|
|
return;
|
|
|
|
angelDebugLogFile = fopen (angelDebugFilename,"a");
|
|
|
|
if (!angelDebugLogFile)
|
|
{
|
|
fprintf (stderr,"Error opening log file '%s'\n",angelDebugFilename);
|
|
perror ("fopen");
|
|
}
|
|
else
|
|
{
|
|
/* The following line is equivalent to: */
|
|
/* setlinebuf (angelDebugLogFile); */
|
|
setvbuf(angelDebugLogFile, (char *)NULL, _IOLBF, 0);
|
|
#if defined(__CYGWIN__)
|
|
setmode(fileno(angelDebugLogFile), O_TEXT);
|
|
#endif
|
|
}
|
|
|
|
time (&t);
|
|
fprintf (angelDebugLogFile,"ADP log file opened at %s\n",asctime(localtime(&t)));
|
|
}
|
|
|
|
|
|
static void closeLogFile (void)
|
|
{
|
|
time_t t;
|
|
|
|
if (!angelDebugLogFile)
|
|
return;
|
|
|
|
time (&t);
|
|
fprintf (angelDebugLogFile,"ADP log file closed at %s\n",asctime(localtime(&t)));
|
|
|
|
fclose (angelDebugLogFile);
|
|
angelDebugLogFile = NULL;
|
|
}
|
|
|
|
void DevSW_SetLogEnable (int logEnableFlag)
|
|
{
|
|
if (logEnableFlag && !angelDebugLogFile)
|
|
openLogFile ();
|
|
else if (!logEnableFlag && angelDebugLogFile)
|
|
closeLogFile ();
|
|
|
|
angelDebugLogEnable = logEnableFlag;
|
|
}
|
|
|
|
|
|
void DevSW_SetLogfile (const char *filename)
|
|
{
|
|
closeLogFile ();
|
|
|
|
if (angelDebugFilename)
|
|
{
|
|
free (angelDebugFilename);
|
|
angelDebugFilename = NULL;
|
|
}
|
|
|
|
if (filename && *filename)
|
|
{
|
|
angelDebugFilename = strdup (filename);
|
|
if (angelDebugLogEnable)
|
|
openLogFile ();
|
|
}
|
|
}
|
|
|
|
|
|
#define WordAt(p) ((unsigned long) ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24)))
|
|
|
|
static void dumpPacket(FILE *fp, char *label, struct data_packet *p)
|
|
{
|
|
unsigned r;
|
|
int i;
|
|
unsigned char channel;
|
|
|
|
if (!fp)
|
|
return;
|
|
|
|
fprintf(fp,"%s [T=%d L=%d] ",label,p->type,p->len);
|
|
for (i=0; i<p->len; ++i)
|
|
fprintf(fp,"%02x ",p->data[i]);
|
|
fprintf(fp,"\n");
|
|
|
|
channel = p->data[0];
|
|
|
|
r = WordAt(p->data+4);
|
|
|
|
fprintf(fp,"R=%08x ",r);
|
|
fprintf(fp,"%s ", r&0x80000000 ? "H<-T" : "H->T");
|
|
|
|
switch (channel)
|
|
{
|
|
case CI_PRIVATE: fprintf(fp,"CI_PRIVATE: "); break;
|
|
case CI_HADP: fprintf(fp,"CI_HADP: "); break;
|
|
case CI_TADP: fprintf(fp,"CI_TADP: "); break;
|
|
case CI_HBOOT: fprintf(fp,"CI_HBOOT: "); break;
|
|
case CI_TBOOT: fprintf(fp,"CI_TBOOT: "); break;
|
|
case CI_CLIB: fprintf(fp,"CI_CLIB: "); break;
|
|
case CI_HUDBG: fprintf(fp,"CI_HUDBG: "); break;
|
|
case CI_TUDBG: fprintf(fp,"CI_TUDBG: "); break;
|
|
case CI_HTDCC: fprintf(fp,"CI_HTDCC: "); break;
|
|
case CI_TTDCC: fprintf(fp,"CI_TTDCC: "); break;
|
|
case CI_TLOG: fprintf(fp,"CI_TLOG: "); break;
|
|
default: fprintf(fp,"BadChan: "); break;
|
|
}
|
|
|
|
switch (r & 0xffffff)
|
|
{
|
|
case ADP_Booted: fprintf(fp," ADP_Booted "); break;
|
|
#if defined(ADP_TargetResetIndication)
|
|
case ADP_TargetResetIndication: fprintf(fp," ADP_TargetResetIndication "); break;
|
|
#endif
|
|
case ADP_Reboot: fprintf(fp," ADP_Reboot "); break;
|
|
case ADP_Reset: fprintf(fp," ADP_Reset "); break;
|
|
#if defined(ADP_HostResetIndication)
|
|
case ADP_HostResetIndication: fprintf(fp," ADP_HostResetIndication "); break;
|
|
#endif
|
|
case ADP_ParamNegotiate: fprintf(fp," ADP_ParamNegotiate "); break;
|
|
case ADP_LinkCheck: fprintf(fp," ADP_LinkCheck "); break;
|
|
case ADP_HADPUnrecognised: fprintf(fp," ADP_HADPUnrecognised "); break;
|
|
case ADP_Info: fprintf(fp," ADP_Info "); break;
|
|
case ADP_Control: fprintf(fp," ADP_Control "); break;
|
|
case ADP_Read: fprintf(fp," ADP_Read "); break;
|
|
case ADP_Write: fprintf(fp," ADP_Write "); break;
|
|
case ADP_CPUread: fprintf(fp," ADP_CPUread "); break;
|
|
case ADP_CPUwrite: fprintf(fp," ADP_CPUwrite "); break;
|
|
case ADP_CPread: fprintf(fp," ADP_CPread "); break;
|
|
case ADP_CPwrite: fprintf(fp," ADP_CPwrite "); break;
|
|
case ADP_SetBreak: fprintf(fp," ADP_SetBreak "); break;
|
|
case ADP_ClearBreak: fprintf(fp," ADP_ClearBreak "); break;
|
|
case ADP_SetWatch: fprintf(fp," ADP_SetWatch "); break;
|
|
case ADP_ClearWatch: fprintf(fp," ADP_ClearWatch "); break;
|
|
case ADP_Execute: fprintf(fp," ADP_Execute "); break;
|
|
case ADP_Step: fprintf(fp," ADP_Step "); break;
|
|
case ADP_InterruptRequest: fprintf(fp," ADP_InterruptRequest "); break;
|
|
case ADP_HW_Emulation: fprintf(fp," ADP_HW_Emulation "); break;
|
|
case ADP_ICEbreakerHADP: fprintf(fp," ADP_ICEbreakerHADP "); break;
|
|
case ADP_ICEman: fprintf(fp," ADP_ICEman "); break;
|
|
case ADP_Profile: fprintf(fp," ADP_Profile "); break;
|
|
case ADP_InitialiseApplication: fprintf(fp," ADP_InitialiseApplication "); break;
|
|
case ADP_End: fprintf(fp," ADP_End "); break;
|
|
case ADP_TADPUnrecognised: fprintf(fp," ADP_TADPUnrecognised "); break;
|
|
case ADP_Stopped: fprintf(fp," ADP_Stopped "); break;
|
|
case ADP_TDCC_ToHost: fprintf(fp," ADP_TDCC_ToHost "); break;
|
|
case ADP_TDCC_FromHost: fprintf(fp," ADP_TDCC_FromHost "); break;
|
|
|
|
case CL_Unrecognised: fprintf(fp," CL_Unrecognised "); break;
|
|
case CL_WriteC: fprintf(fp," CL_WriteC "); break;
|
|
case CL_Write0: fprintf(fp," CL_Write0 "); break;
|
|
case CL_ReadC: fprintf(fp," CL_ReadC "); break;
|
|
case CL_System: fprintf(fp," CL_System "); break;
|
|
case CL_GetCmdLine: fprintf(fp," CL_GetCmdLine "); break;
|
|
case CL_Clock: fprintf(fp," CL_Clock "); break;
|
|
case CL_Time: fprintf(fp," CL_Time "); break;
|
|
case CL_Remove: fprintf(fp," CL_Remove "); break;
|
|
case CL_Rename: fprintf(fp," CL_Rename "); break;
|
|
case CL_Open: fprintf(fp," CL_Open "); break;
|
|
case CL_Close: fprintf(fp," CL_Close "); break;
|
|
case CL_Write: fprintf(fp," CL_Write "); break;
|
|
case CL_WriteX: fprintf(fp," CL_WriteX "); break;
|
|
case CL_Read: fprintf(fp," CL_Read "); break;
|
|
case CL_ReadX: fprintf(fp," CL_ReadX "); break;
|
|
case CL_Seek: fprintf(fp," CL_Seek "); break;
|
|
case CL_Flen: fprintf(fp," CL_Flen "); break;
|
|
case CL_IsTTY: fprintf(fp," CL_IsTTY "); break;
|
|
case CL_TmpNam: fprintf(fp," CL_TmpNam "); break;
|
|
|
|
default: fprintf(fp," BadReason "); break;
|
|
}
|
|
|
|
i = 20;
|
|
|
|
if (((r & 0xffffff) == ADP_CPUread ||
|
|
(r & 0xffffff) == ADP_CPUwrite) && (r&0x80000000)==0)
|
|
{
|
|
fprintf(fp,"%02x ", p->data[i]);
|
|
++i;
|
|
}
|
|
|
|
for (; i<p->len; i+=4)
|
|
fprintf(fp,"%08x ",WordAt(p->data+i));
|
|
|
|
fprintf(fp,"\n");
|
|
}
|
|
|
|
|
|
/*
|
|
* TODO: this should be adjustable - it could be done by defining
|
|
* a reason code for DevSW_Ioctl. It could even be a
|
|
* per-devicechannel parameter.
|
|
*/
|
|
static const unsigned int allocsize = ADP_BUFFER_MIN_SIZE;
|
|
|
|
#define illegalDevChanID(type) ((type) >= DC_NUM_CHANNELS)
|
|
|
|
/**********************************************************************/
|
|
|
|
/*
|
|
* Function: initialise_read
|
|
* Purpose: Set up a read request for another packet
|
|
*
|
|
* Params:
|
|
* In/Out: ds State structure to be initialised
|
|
*
|
|
* Returns:
|
|
* OK: 0
|
|
* Error: -1
|
|
*/
|
|
static int initialise_read(DevSWState *ds)
|
|
{
|
|
struct data_packet *dp;
|
|
|
|
/*
|
|
* try to claim the structure that will
|
|
* eventually hold the new packet.
|
|
*/
|
|
if ((ds->ds_nextreadpacket = DevSW_AllocatePacket(allocsize)) == NULL)
|
|
return -1;
|
|
|
|
/*
|
|
* Calls into the device driver use the DriverCall structure: use
|
|
* the buffer we have just allocated, and declare its size. We
|
|
* are also obliged to clear the driver's context pointer.
|
|
*/
|
|
dp = &ds->ds_activeread.dc_packet;
|
|
dp->buf_len = allocsize;
|
|
dp->data = ds->ds_nextreadpacket->pk_buffer;
|
|
|
|
ds->ds_activeread.dc_context = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Function: initialise_write
|
|
* Purpose: Set up a write request for another packet
|
|
*
|
|
* Params:
|
|
* Input: packet The packet to be written
|
|
*
|
|
* type The type of the packet
|
|
*
|
|
* In/Out: dc The structure to be intialised
|
|
*
|
|
* Returns: Nothing
|
|
*/
|
|
static void initialise_write(DriverCall *dc, Packet *packet, DevChanID type)
|
|
{
|
|
struct data_packet *dp = &dc->dc_packet;
|
|
|
|
dp->len = packet->pk_length;
|
|
dp->data = packet->pk_buffer;
|
|
dp->type = type;
|
|
|
|
/*
|
|
* we are required to clear the state structure for the driver
|
|
*/
|
|
dc->dc_context = NULL;
|
|
}
|
|
|
|
/*
|
|
* Function: enqueue_packet
|
|
* Purpose: move a newly read packet onto the appropriate queue
|
|
* of read packets
|
|
*
|
|
* Params:
|
|
* In/Out: ds State structure with new packet
|
|
*
|
|
* Returns: Nothing
|
|
*/
|
|
static void enqueue_packet(DevSWState *ds)
|
|
{
|
|
struct data_packet *dp = &ds->ds_activeread.dc_packet;
|
|
Packet *packet = ds->ds_nextreadpacket;
|
|
|
|
/*
|
|
* transfer the length
|
|
*/
|
|
packet->pk_length = dp->len;
|
|
|
|
/*
|
|
* take this packet out of the incoming slot
|
|
*/
|
|
ds->ds_nextreadpacket = NULL;
|
|
|
|
/*
|
|
* try to put it on the correct input queue
|
|
*/
|
|
if (illegalDevChanID(dp->type))
|
|
{
|
|
/* this shouldn't happen */
|
|
WARN("Illegal type for Rx packet");
|
|
DevSW_FreePacket(packet);
|
|
}
|
|
else
|
|
Adp_addToQueue(&ds->ds_readqueue[dp->type], packet);
|
|
}
|
|
|
|
/*
|
|
* Function: flush_packet
|
|
* Purpose: Send a packet to the device driver
|
|
*
|
|
* Params:
|
|
* Input: device The device to be written to
|
|
*
|
|
* In/Out: dc Describes the packet to be sent
|
|
*
|
|
* Returns: Nothing
|
|
*
|
|
* Post-conditions: If the whole packet was accepted by the device
|
|
* driver, then dc->dc_packet.data will be
|
|
* set to NULL.
|
|
*/
|
|
static void flush_packet(const DeviceDescr *device, DriverCall *dc)
|
|
{
|
|
if (device->DeviceWrite(dc) > 0)
|
|
/*
|
|
* the whole packet was swallowed
|
|
*/
|
|
dc->dc_packet.data = NULL;
|
|
}
|
|
|
|
/**********************************************************************/
|
|
|
|
/*
|
|
* These are the externally visible functions. They are documented in
|
|
* devsw.h
|
|
*/
|
|
Packet *DevSW_AllocatePacket(const unsigned int length)
|
|
{
|
|
Packet *pk;
|
|
|
|
if ((pk = malloc(sizeof(*pk))) == NULL)
|
|
{
|
|
WARN("malloc failure");
|
|
return NULL;
|
|
}
|
|
|
|
if ((pk->pk_buffer = malloc(length+CHAN_HEADER_SIZE)) == NULL)
|
|
{
|
|
WARN("malloc failure");
|
|
free(pk);
|
|
return NULL;
|
|
}
|
|
|
|
return pk;
|
|
}
|
|
|
|
void DevSW_FreePacket(Packet *pk)
|
|
{
|
|
free(pk->pk_buffer);
|
|
free(pk);
|
|
}
|
|
|
|
AdpErrs DevSW_Open(DeviceDescr *device, const char *name, const char *arg,
|
|
const DevChanID type)
|
|
{
|
|
DevSWState *ds;
|
|
|
|
/*
|
|
* is this the very first open call for this driver?
|
|
*/
|
|
if ((ds = (DevSWState *)(device->SwitcherState)) == NULL)
|
|
{
|
|
/*
|
|
* yes, it is: initialise state
|
|
*/
|
|
if ((ds = malloc(sizeof(*ds))) == NULL)
|
|
/* give up */
|
|
return adp_malloc_failure;
|
|
|
|
(void)memset(ds, 0, sizeof(*ds));
|
|
device->SwitcherState = (void *)ds;
|
|
}
|
|
|
|
/*
|
|
* check that we haven't already been opened for this type
|
|
*/
|
|
if ((ds->ds_opendevchans & (1 << type)) != 0)
|
|
return adp_device_already_open;
|
|
|
|
/*
|
|
* if no opens have been done for this device, then do it now
|
|
*/
|
|
if (ds->ds_opendevchans == 0)
|
|
if (device->DeviceOpen(name, arg) < 0)
|
|
return adp_device_open_failed;
|
|
|
|
/*
|
|
* open has finished
|
|
*/
|
|
ds->ds_opendevchans |= (1 << type);
|
|
return adp_ok;
|
|
}
|
|
|
|
AdpErrs DevSW_Match(const DeviceDescr *device, const char *name,
|
|
const char *arg)
|
|
{
|
|
return (device->DeviceMatch(name, arg) == -1) ? adp_failed : adp_ok;
|
|
}
|
|
|
|
AdpErrs DevSW_Close (DeviceDescr *device, const DevChanID type)
|
|
{
|
|
DevSWState *ds = (DevSWState *)(device->SwitcherState);
|
|
Packet *pk;
|
|
|
|
if ((ds->ds_opendevchans & (1 << type)) == 0)
|
|
return adp_device_not_open;
|
|
|
|
ds->ds_opendevchans &= ~(1 << type);
|
|
|
|
/*
|
|
* if this is the last close for this channel, then inform the driver
|
|
*/
|
|
if (ds->ds_opendevchans == 0)
|
|
device->DeviceClose();
|
|
|
|
/*
|
|
* release all packets of the appropriate type
|
|
*/
|
|
for (pk = Adp_removeFromQueue(&(ds->ds_readqueue[type]));
|
|
pk != NULL;
|
|
pk = Adp_removeFromQueue(&(ds->ds_readqueue[type])))
|
|
DevSW_FreePacket(pk);
|
|
|
|
/* Free memory */
|
|
free ((char *) device->SwitcherState);
|
|
device->SwitcherState = 0x0;
|
|
|
|
/* that's all */
|
|
return adp_ok;
|
|
}
|
|
|
|
AdpErrs DevSW_Read(const DeviceDescr *device, const DevChanID type,
|
|
Packet **packet, bool block)
|
|
{
|
|
int read_err;
|
|
DevSWState *ds = device->SwitcherState;
|
|
|
|
/*
|
|
* To try to get information out of the device driver as
|
|
* quickly as possible, we try and read more packets, even
|
|
* if a completed packet is already available.
|
|
*/
|
|
|
|
/*
|
|
* have we got a packet currently pending?
|
|
*/
|
|
if (ds->ds_nextreadpacket == NULL)
|
|
/*
|
|
* no - set things up
|
|
*/
|
|
if (initialise_read(ds) < 0) {
|
|
/*
|
|
* we failed to initialise the next packet, but can
|
|
* still return a packet that has already arrived.
|
|
*/
|
|
*packet = Adp_removeFromQueue(&ds->ds_readqueue[type]);
|
|
return adp_ok;
|
|
}
|
|
read_err = device->DeviceRead(&ds->ds_activeread, block);
|
|
switch (read_err) {
|
|
case 1:
|
|
/*
|
|
* driver has pulled in a complete packet, queue it up
|
|
*/
|
|
#ifdef RET_DEBUG
|
|
printf("got a complete packet\n");
|
|
#endif
|
|
|
|
if (angelDebugLogEnable)
|
|
dumpPacket(angelDebugLogFile,"rx:",&ds->ds_activeread.dc_packet);
|
|
|
|
enqueue_packet(ds);
|
|
*packet = Adp_removeFromQueue(&ds->ds_readqueue[type]);
|
|
return adp_ok;
|
|
case 0:
|
|
/*
|
|
* OK, return the head of the read queue for the given type
|
|
*/
|
|
/* enqueue_packet(ds); */
|
|
*packet = Adp_removeFromQueue(&ds->ds_readqueue[type]);
|
|
return adp_ok;
|
|
case -1:
|
|
#ifdef RET_DEBUG
|
|
printf("got a bad packet\n");
|
|
#endif
|
|
/* bad packet */
|
|
*packet = NULL;
|
|
return adp_bad_packet;
|
|
default:
|
|
panic("DevSW_Read: bad read status %d", read_err);
|
|
}
|
|
return 0; /* get rid of a potential compiler warning */
|
|
}
|
|
|
|
|
|
AdpErrs DevSW_FlushPendingWrite(const DeviceDescr *device)
|
|
{
|
|
struct DriverCall *dc;
|
|
struct data_packet *dp;
|
|
|
|
dc = &((DevSWState *)(device->SwitcherState))->ds_activewrite;
|
|
dp = &dc->dc_packet;
|
|
|
|
/*
|
|
* try to flush any packet that is still being written
|
|
*/
|
|
if (dp->data != NULL)
|
|
{
|
|
flush_packet(device, dc);
|
|
|
|
/* see if it has gone */
|
|
if (dp->data != NULL)
|
|
return adp_write_busy;
|
|
else
|
|
return adp_ok;
|
|
}
|
|
else
|
|
return adp_ok;
|
|
}
|
|
|
|
|
|
AdpErrs DevSW_Write(const DeviceDescr *device, Packet *packet, DevChanID type)
|
|
{
|
|
struct DriverCall *dc;
|
|
struct data_packet *dp;
|
|
|
|
dc = &((DevSWState *)(device->SwitcherState))->ds_activewrite;
|
|
dp = &dc->dc_packet;
|
|
|
|
if (illegalDevChanID(type))
|
|
return adp_illegal_args;
|
|
|
|
/*
|
|
* try to flush any packet that is still being written
|
|
*/
|
|
if (DevSW_FlushPendingWrite(device) != adp_ok)
|
|
return adp_write_busy;
|
|
|
|
/*
|
|
* we can take this packet - set things up, then try to get rid of it
|
|
*/
|
|
initialise_write(dc, packet, type);
|
|
|
|
if (angelDebugLogEnable)
|
|
dumpPacket(angelDebugLogFile,"tx:",&dc->dc_packet);
|
|
|
|
flush_packet(device, dc);
|
|
|
|
return adp_ok;
|
|
}
|
|
|
|
AdpErrs DevSW_Ioctl(const DeviceDescr *device, const int opcode, void *args)
|
|
{
|
|
return (device->DeviceIoctl(opcode, args) < 0) ? adp_failed : adp_ok;
|
|
}
|
|
|
|
bool DevSW_WriteFinished(const DeviceDescr *device)
|
|
{
|
|
struct DriverCall *dc;
|
|
struct data_packet *dp;
|
|
|
|
dc = &((DevSWState *)(device->SwitcherState))->ds_activewrite;
|
|
dp = &dc->dc_packet;
|
|
|
|
return (dp == NULL || dp->data == NULL);
|
|
}
|
|
|
|
/* EOF devsw.c */
|