diff options
Diffstat (limited to 'gdb/rdi-share/serdrv.c')
| -rw-r--r-- | gdb/rdi-share/serdrv.c | 667 |
1 files changed, 0 insertions, 667 deletions
diff --git a/gdb/rdi-share/serdrv.c b/gdb/rdi-share/serdrv.c deleted file mode 100644 index bff6a1892e..0000000000 --- a/gdb/rdi-share/serdrv.c +++ /dev/null @@ -1,667 +0,0 @@ -/* - * 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-*- - * - * $Revision$ - * $Date$ - * - * - * serdrv.c - Synchronous Serial Driver for Angel. - * This is nice and simple just to get something going. - */ - -#ifdef __hpux -# define _POSIX_SOURCE 1 -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "crc.h" -#include "devices.h" -#include "buffers.h" -#include "rxtx.h" -#include "hostchan.h" -#include "params.h" -#include "logging.h" - -extern int baud_rate; /* From gdb/top.c */ - -#ifdef COMPILING_ON_WINDOWS -# undef ERROR -# undef IGNORE -# include <windows.h> -# include "angeldll.h" -# include "comb_api.h" -#else -# ifdef __hpux -# define _TERMIOS_INCLUDED -# include <sys/termio.h> -# undef _TERMIOS_INCLUDED -# else -# include <termios.h> -# endif -# include "unixcomm.h" -#endif - -#ifndef UNUSED -# define UNUSED(x) (x = x) /* Silence compiler warnings */ -#endif - -#define MAXREADSIZE 512 -#define MAXWRITESIZE 512 - -#define SERIAL_FC_SET ((1<<serial_XON)|(1<<serial_XOFF)) -#define SERIAL_CTL_SET ((1<<serial_STX)|(1<<serial_ETX)|(1<<serial_ESC)) -#define SERIAL_ESC_SET (SERIAL_FC_SET|SERIAL_CTL_SET) - -static const struct re_config config = { - serial_STX, serial_ETX, serial_ESC, /* self-explanatory? */ - SERIAL_FC_SET, /* set of flow-control characters */ - SERIAL_ESC_SET, /* set of characters to be escaped */ - NULL /* serial_flow_control */, NULL , /* what to do with FC chars */ - angel_DD_RxEng_BufferAlloc, NULL /* how to get a buffer */ -}; - -static struct re_state rxstate; - -typedef struct writestate { - unsigned int wbindex; - /* static te_status testatus;*/ - unsigned char writebuf[MAXWRITESIZE]; - struct te_state txstate; -} writestate; - -static struct writestate wstate; - -/* - * The set of parameter options supported by the device - */ -static unsigned int baud_options[] = { -#if defined(B115200) || defined(__hpux) - 115200, -#endif -#if defined(B57600) || defined(__hpux) - 57600, -#endif - 38400, 19200, 9600 -}; - -static ParameterList param_list[] = { - { AP_BAUD_RATE, - sizeof(baud_options)/sizeof(unsigned int), - baud_options } -}; - -static const ParameterOptions serial_options = { - sizeof(param_list)/sizeof(ParameterList), param_list }; - -/* - * The default parameter config for the device - */ -static Parameter param_default[] = { - { AP_BAUD_RATE, 9600 } -}; - -static ParameterConfig serial_defaults = { - sizeof(param_default)/sizeof(Parameter), param_default }; - -/* - * The user-modified options for the device - */ -static unsigned int user_baud_options[sizeof(baud_options)/sizeof(unsigned)]; - -static ParameterList param_user_list[] = { - { AP_BAUD_RATE, - sizeof(user_baud_options)/sizeof(unsigned), - user_baud_options } -}; - -static ParameterOptions user_options = { - sizeof(param_user_list)/sizeof(ParameterList), param_user_list }; - -static bool user_options_set; - -/* forward declarations */ -static int serial_reset( void ); -static int serial_set_params( const ParameterConfig *config ); -static int SerialMatch(const char *name, const char *arg); - -static void process_baud_rate( unsigned int target_baud_rate ) -{ - const ParameterList *full_list; - ParameterList *user_list; - - /* create subset of full options */ - full_list = Angel_FindParamList( &serial_options, AP_BAUD_RATE ); - user_list = Angel_FindParamList( &user_options, AP_BAUD_RATE ); - - if ( full_list != NULL && user_list != NULL ) - { - unsigned int i, j; - unsigned int def_baud = 0; - - /* find lower or equal to */ - for ( i = 0; i < full_list->num_options; ++i ) - if ( target_baud_rate >= full_list->option[i] ) - { - /* copy remaining */ - for ( j = 0; j < (full_list->num_options - i); ++j ) - user_list->option[j] = full_list->option[i+j]; - user_list->num_options = j; - - /* check this is not the default */ - Angel_FindParam( AP_BAUD_RATE, &serial_defaults, &def_baud ); - if ( (j == 1) && (user_list->option[0] == def_baud) ) - { -#ifdef DEBUG - printf( "user selected default\n" ); -#endif - } - else - { - user_options_set = TRUE; -#ifdef DEBUG - printf( "user options are: " ); - for ( j = 0; j < user_list->num_options; ++j ) - printf( "%u ", user_list->option[j] ); - printf( "\n" ); -#endif - } - - break; /* out of i loop */ - } - -#ifdef DEBUG - if ( i >= full_list->num_options ) - printf( "couldn't match baud rate %u\n", target_baud_rate ); -#endif - } -#ifdef DEBUG - else - printf( "failed to find lists\n" ); -#endif -} - -static int SerialOpen(const char *name, const char *arg) -{ - const char *port_name = name; - -#ifdef DEBUG - printf("SerialOpen: name %s arg %s\n", name, arg ? arg : "<NULL>"); -#endif - -#ifdef COMPILING_ON_WINDOWS - if (IsOpenSerial()) return -1; -#else - if (Unix_IsSerialInUse()) return -1; -#endif - -#ifdef COMPILING_ON_WINDOWS - if (SerialMatch(name, arg) != adp_ok) - return adp_failed; -#else - port_name = Unix_MatchValidSerialDevice(port_name); -# ifdef DEBUG - printf("translated port to %s\n", port_name == 0 ? "NULL" : port_name); -# endif - if (port_name == 0) return adp_failed; -#endif - - user_options_set = FALSE; - - /* interpret and store the arguments */ - if ( arg != NULL ) - { - unsigned int target_baud_rate; - target_baud_rate = (unsigned int)strtoul(arg, NULL, 10); - if (target_baud_rate > 0) - { -#ifdef DEBUG - printf( "user selected baud rate %u\n", target_baud_rate ); -#endif - process_baud_rate( target_baud_rate ); - } -#ifdef DEBUG - else - printf( "could not understand baud rate %s\n", arg ); -#endif - } - else if (baud_rate > 0) - { - /* If the user specified a baud rate on the command line "-b" or via - the "set remotebaud" command then try to use that one */ - process_baud_rate( baud_rate ); - } - -#ifdef COMPILING_ON_WINDOWS - { - int port = IsValidDevice(name); - if (OpenSerial(port, FALSE) != COM_OK) - return -1; - } -#else - if (Unix_OpenSerial(port_name) < 0) - return -1; -#endif - - serial_reset(); - -#if defined(__unix) || defined(__CYGWIN__) - Unix_ioctlNonBlocking(); -#endif - - Angel_RxEngineInit(&config, &rxstate); - /* - * DANGER!: passing in NULL as the packet is ok for now as it is just - * IGNOREd but this may well change - */ - Angel_TxEngineInit(&config, NULL, &wstate.txstate); - return 0; -} - -static int SerialMatch(const char *name, const char *arg) -{ - UNUSED(arg); -#ifdef COMPILING_ON_WINDOWS - if (IsValidDevice(name) == COM_DEVICENOTVALID) - return -1; - else - return 0; -#else - return Unix_MatchValidSerialDevice(name) == 0 ? -1 : 0; -#endif -} - -static void SerialClose(void) -{ -#ifdef DO_TRACE - printf("SerialClose()\n"); -#endif - -#ifdef COMPILING_ON_WINDOWS - CloseSerial(); -#else - Unix_CloseSerial(); -#endif -} - -static int SerialRead(DriverCall *dc, bool block) { - static unsigned char readbuf[MAXREADSIZE]; - static int rbindex=0; - - int nread; - int read_errno; - int c=0; - re_status restatus; - int ret_code = -1; /* assume bad packet or error */ - - /* must not overflow buffer and must start after the existing data */ -#ifdef COMPILING_ON_WINDOWS - { - BOOL dummy = FALSE; - nread = BytesInRXBufferSerial(); - - if (nread > MAXREADSIZE - rbindex) - nread = MAXREADSIZE - rbindex; - - if ((read_errno = ReadSerial(readbuf+rbindex, nread, &dummy)) == COM_READFAIL) - { - MessageBox(GetFocus(), "Read error\n", "Angel", MB_OK | MB_ICONSTOP); - return -1; /* SJ - This really needs to return a value, which is picked up in */ - /* DevSW_Read as meaning stop debugger but don't kill. */ - } - else if (pfnProgressCallback != NULL && read_errno == COM_OK) - { - progressInfo.nRead += nread; - (*pfnProgressCallback)(&progressInfo); - } - } -#else - nread = Unix_ReadSerial(readbuf+rbindex, MAXREADSIZE-rbindex, block); - read_errno = errno; -#endif - - if ((nread > 0) || (rbindex > 0)) { - -#ifdef DO_TRACE - printf("[%d@%d] ", nread, rbindex); -#endif - - if (nread>0) - rbindex = rbindex+nread; - - do { - restatus = Angel_RxEngine(readbuf[c], &(dc->dc_packet), &rxstate); -#ifdef DO_TRACE - printf("<%02X ",readbuf[c]); - if (!(++c % 16)) - printf("\n"); -#else - c++; -#endif - } while (c<rbindex && - ((restatus == RS_IN_PKT) || (restatus == RS_WAIT_PKT))); - -#ifdef DO_TRACE - if (c % 16) - printf("\n"); -#endif - - switch(restatus) { - - case RS_GOOD_PKT: - ret_code = 1; - /* fall through to: */ - - case RS_BAD_PKT: - /* - * We now need to shuffle any left over data down to the - * beginning of our private buffer ready to be used - *for the next packet - */ -#ifdef DO_TRACE - printf("SerialRead() processed %d, moving down %d\n", c, rbindex-c); -#endif - if (c != rbindex) memmove((char *) readbuf, (char *) (readbuf+c), - rbindex-c); - rbindex -= c; - break; - - case RS_IN_PKT: - case RS_WAIT_PKT: - rbindex = 0; /* will have processed all we had */ - ret_code = 0; - break; - - default: -#ifdef DEBUG - printf("Bad re_status in serialRead()\n"); -#endif - break; - } - } else if (nread == 0) - ret_code = 0; /* nothing to read */ - else if (read_errno == ERRNO_FOR_BLOCKED_IO) /* nread < 0 */ - ret_code = 0; - -#ifdef DEBUG - if ((nread<0) && (read_errno!=ERRNO_FOR_BLOCKED_IO)) - perror("read() error in serialRead()"); -#endif - - return ret_code; -} - - -static int SerialWrite(DriverCall *dc) { - int nwritten = 0; - te_status testatus = TS_IN_PKT; - - if (dc->dc_context == NULL) { - Angel_TxEngineInit(&config, &(dc->dc_packet), &(wstate.txstate)); - wstate.wbindex = 0; - dc->dc_context = &wstate; - } - - while ((testatus == TS_IN_PKT) && (wstate.wbindex < MAXWRITESIZE)) - { - /* send the raw data through the tx engine to escape and encapsulate */ - testatus = Angel_TxEngine(&(dc->dc_packet), &(wstate.txstate), - &(wstate.writebuf)[wstate.wbindex]); - if (testatus != TS_IDLE) wstate.wbindex++; - } - - if (testatus == TS_IDLE) { -#ifdef DEBUG - printf("SerialWrite: testatus is TS_IDLE during preprocessing\n"); -#endif - } - -#ifdef DO_TRACE - { - int i = 0; - - while (i<wstate.wbindex) - { - printf(">%02X ",wstate.writebuf[i]); - - if (!(++i % 16)) - printf("\n"); - } - if (i % 16) - printf("\n"); - } -#endif - -#ifdef COMPILING_ON_WINDOWS - if (WriteSerial(wstate.writebuf, wstate.wbindex) == COM_OK) - { - nwritten = wstate.wbindex; - if (pfnProgressCallback != NULL) - { - progressInfo.nWritten += nwritten; - (*pfnProgressCallback)(&progressInfo); - } - } - else - { - MessageBox(GetFocus(), "Write error\n", "Angel", MB_OK | MB_ICONSTOP); - return -1; /* SJ - This really needs to return a value, which is picked up in */ - /* DevSW_Read as meaning stop debugger but don't kill. */ - } -#else - nwritten = Unix_WriteSerial(wstate.writebuf, wstate.wbindex); - - if (nwritten < 0) { - nwritten=0; - } -#endif - -#ifdef DEBUG - if (nwritten > 0) - printf("Wrote %#04x bytes\n", nwritten); -#endif - - if ((unsigned) nwritten == wstate.wbindex && - (testatus == TS_DONE_PKT || testatus == TS_IDLE)) { - - /* finished sending the packet */ - -#ifdef DEBUG - printf("SerialWrite: calling Angel_TxEngineInit after sending packet (len=%i)\n",wstate.wbindex); -#endif - testatus = TS_IN_PKT; - wstate.wbindex = 0; - return 1; - } - else { -#ifdef DEBUG - printf("SerialWrite: Wrote part of packet wbindex=%i, nwritten=%i\n", - wstate.wbindex, nwritten); -#endif - - /* - * still some data left to send shuffle whats left down and reset - * the ptr - */ - memmove((char *) wstate.writebuf, (char *) (wstate.writebuf+nwritten), - wstate.wbindex-nwritten); - wstate.wbindex -= nwritten; - return 0; - } - return -1; -} - - -static int serial_reset( void ) -{ -#ifdef DEBUG - printf( "serial_reset\n" ); -#endif - -#ifdef COMPILING_ON_WINDOWS - FlushSerial(); -#else - Unix_ResetSerial(); -#endif - - return serial_set_params( &serial_defaults ); -} - - -static int find_baud_rate( unsigned int *speed ) -{ - static struct { - unsigned int baud; - int termiosValue; - } possibleBaudRates[] = { -#if defined(__hpux) - {115200,_B115200}, {57600,_B57600}, -#else -#ifdef B115200 - {115200,B115200}, -#endif -#ifdef B57600 - {57600,B57600}, -#endif -#endif -#ifdef COMPILING_ON_WINDOWS - {38400,CBR_38400}, {19200,CBR_19200}, {9600, CBR_9600}, {0,0} -#else - {38400,B38400}, {19200,B19200}, {9600, B9600}, {0,0} -#endif - }; - unsigned int i; - - /* look for lower or matching -- will always terminate at 0 end marker */ - for ( i = 0; possibleBaudRates[i].baud > *speed; ++i ) - /* do nothing */ ; - - if ( possibleBaudRates[i].baud > 0 ) - *speed = possibleBaudRates[i].baud; - - return possibleBaudRates[i].termiosValue; -} - - -static int serial_set_params( const ParameterConfig *config ) -{ - unsigned int speed; - int termios_value; - -#ifdef DEBUG - printf( "serial_set_params\n" ); -#endif - - if ( ! Angel_FindParam( AP_BAUD_RATE, config, &speed ) ) - { -#ifdef DEBUG - printf( "speed not found in config\n" ); -#endif - return DE_OKAY; - } - - termios_value = find_baud_rate( &speed ); - if ( termios_value == 0 ) - { -#ifdef DEBUG - printf( "speed not valid: %u\n", speed ); -#endif - return DE_OKAY; - } - -#ifdef DEBUG - printf( "setting speed to %u\n", speed ); -#endif - -#ifdef COMPILING_ON_WINDOWS - SetBaudRate((WORD)termios_value); -#else - Unix_SetSerialBaudRate(termios_value); -#endif - - return DE_OKAY; -} - - -static int serial_get_user_params( ParameterOptions **p_options ) -{ -#ifdef DEBUG - printf( "serial_get_user_params\n" ); -#endif - - if ( user_options_set ) - { - *p_options = &user_options; - } - else - { - *p_options = NULL; - } - - return DE_OKAY; -} - - -static int serial_get_default_params( ParameterConfig **p_config ) -{ -#ifdef DEBUG - printf( "serial_get_default_params\n" ); -#endif - - *p_config = (ParameterConfig *) &serial_defaults; - return DE_OKAY; -} - - -static int SerialIoctl(const int opcode, void *args) { - - int ret_code; - -#ifdef DEBUG - printf( "SerialIoctl: op %d arg %p\n", opcode, args ? args : "<NULL>"); -#endif - - switch (opcode) - { - case DC_RESET: - ret_code = serial_reset(); - break; - - case DC_SET_PARAMS: - ret_code = serial_set_params((const ParameterConfig *)args); - break; - - case DC_GET_USER_PARAMS: - ret_code = serial_get_user_params((ParameterOptions **)args); - break; - - case DC_GET_DEFAULT_PARAMS: - ret_code = serial_get_default_params((ParameterConfig **)args); - break; - - default: - ret_code = DE_BAD_OP; - break; - } - - return ret_code; -} - -DeviceDescr angel_SerialDevice = { - "SERIAL", - SerialOpen, - SerialMatch, - SerialClose, - SerialRead, - SerialWrite, - SerialIoctl -}; |
