1 /* -------------------------------- Arctic Core ------------------------------
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2 * Arctic Core - the open source AUTOSAR platform http://arccore.com
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4 * Copyright (C) 2009 ArcCore AB <contact@arccore.com>
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6 * This source code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 as published by the
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8 * Free Software Foundation; See <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>.
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * -------------------------------- Arctic Core ------------------------------*/
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18 #include <sys/stat.h>
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19 #include <sys/types.h>
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25 #include "Std_Types.h"
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28 #if defined(CFG_ARM_CM3)
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29 #include "irq_types.h"
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30 #include "stm32f10x.h"
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33 #ifdef USE_TTY_TCF_STREAMS
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34 #include "streams.h"
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38 #if defined(CFG_ARM)
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41 #define fstat _fstat
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42 #define getpid _getpid
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44 #define close _close
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45 #define isatty _isatty
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48 #define write _write
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49 #define lseek _lseek
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52 // Operation on Winidea terminal buffer
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55 #define TWBUFF_SIZE 0x100
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56 #define TRBUFF_SIZE 0x100
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61 #define TWBUFF_LEN (TWBUFF_SIZE+TBUFF_PTR)
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62 #define TRBUFF_LEN (TRBUFF_SIZE+TBUFF_PTR)
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63 #define TWBUFF_TPTR (g_TWBuffer[TWBUFF_SIZE+0])
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64 #define TWBUFF_CPTR (g_TWBuffer[TWBUFF_SIZE+1])
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65 #define TWBUFF_INC(n) ((n + 1)&(TWBUFF_SIZE-1))
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66 #define TWBUFF_FULL() (TWBUFF_TPTR==((TWBUFF_CPTR-1)&(TWBUFF_SIZE-1)))
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68 #ifdef USE_TTY_WINIDEA
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70 #if defined(MC912DG128A)
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71 static volatile unsigned char g_TWBuffer[TWBUFF_LEN];
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72 static volatile unsigned char g_TRBuffer[TRBUFF_LEN];
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73 volatile char g_TConn __attribute__ ((section (".winidea_port")));
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76 static volatile unsigned char g_TWBuffer[TWBUFF_LEN] __attribute__ ((aligned (0x100))); // Transmit to WinIDEA terminal
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77 static volatile unsigned char g_TRBuffer[TRBUFF_LEN] __attribute__ ((aligned (0x100)));
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78 volatile char g_TConn __attribute__ ((section (".winidea_port")));
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84 #ifdef USE_TTY_CODE_COMPOSER
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86 #define _DTOPEN (0xF0)
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87 #define _DTCLOSE (0xF1)
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88 #define _DTREAD (0xF2)
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89 #define _DTWRITE (0xF3)
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90 #define _DTLSEEK (0xF4)
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91 #define _DTUNLINK (0xF5)
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92 #define _DTGETENV (0xF6)
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93 #define _DTRENAME (0xF7)
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94 #define _DTGETTIME (0xF8)
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95 #define _DTGETCLK (0xF9)
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96 #define _DTSYNC (0xFF)
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98 #define LOADSHORT(x,y,z) { x[(z)] = (unsigned short) (y); \
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99 x[(z)+1] = (unsigned short) (y) >> 8; }
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101 #define UNLOADSHORT(x,z) ((short) ( (short) x[(z)] + \
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102 ((short) x[(z)+1] << 8)))
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104 #define PACKCHAR(val, base, byte) ( (base)[(byte)] = (val) )
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106 #define UNPACKCHAR(base, byte) ( (base)[byte] )
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109 static unsigned char parmbuf[8];
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111 #define CC_BUFFER_SIZE ((BUFSIZ)+32)
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112 volatile unsigned int _CIOBUF_[CC_BUFFER_SIZE] __attribute__ ((section (".cio")));
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114 /***************************************************************************/
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116 /* WRITEMSG() - Sends the passed data and parameters on to the host. */
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118 /***************************************************************************/
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119 void writemsg(unsigned char command,
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120 register const unsigned char *parm,
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121 register const char *data,
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122 unsigned int length)
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124 volatile unsigned char *p = (volatile unsigned char *)(_CIOBUF_+1);
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127 /***********************************************************************/
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128 /* THE LENGTH IS WRITTEN AS A TARGET INT */
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129 /***********************************************************************/
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130 _CIOBUF_[0] = length;
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132 /***********************************************************************/
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133 /* THE COMMAND IS WRITTEN AS A TARGET BYTE */
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134 /***********************************************************************/
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137 /***********************************************************************/
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138 /* PACK THE PARAMETERS AND DATA SO THE HOST READS IT AS BYTE STREAM */
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139 /***********************************************************************/
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140 for (i = 0; i < 8; i++) PACKCHAR(*parm++, p, i);
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141 for (i = 0; i < length; i++) PACKCHAR(*data++, p, i+8);
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143 /***********************************************************************/
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144 /* THE BREAKPOINT THAT SIGNALS THE HOST TO DO DATA TRANSFER */
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145 /***********************************************************************/
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146 __asm(" .global C$$IO$$");
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147 __asm("C$$IO$$: nop");
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150 /***************************************************************************/
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152 /* READMSG() - Reads the data and parameters passed from the host. */
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154 /***************************************************************************/
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155 void readmsg(register unsigned char *parm,
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156 register char *data)
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158 volatile unsigned char *p = (volatile unsigned char *)(_CIOBUF_+1);
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160 unsigned int length;
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162 /***********************************************************************/
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163 /* THE LENGTH IS READ AS A TARGET INT */
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164 /***********************************************************************/
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165 length = _CIOBUF_[0];
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167 /***********************************************************************/
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168 /* UNPACK THE PARAMETERS AND DATA */
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169 /***********************************************************************/
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170 for (i = 0; i < 8; i++) *parm++ = UNPACKCHAR(p, i);
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172 for (i = 0; i < length; i++) *data++ = UNPACKCHAR(p, i+8);
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175 /****************************************************************************/
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176 /* HOSTWRITE() - Pass the write command and its arguments to the host. */
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177 /****************************************************************************/
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178 int HOSTwrite(int dev_fd, const char *buf, unsigned count)
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182 if (count > BUFSIZ) count = BUFSIZ;
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184 LOADSHORT(parmbuf,dev_fd,0);
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185 LOADSHORT(parmbuf,count,2);
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186 writemsg(_DTWRITE,parmbuf,(char *)buf,count);
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187 readmsg(parmbuf,NULL);
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189 result = UNLOADSHORT(parmbuf,0);
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196 #ifdef USE_TTY_TMS570_KEIL
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200 #define FILE_RAMLOG 3
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202 /* Location MUST match NoICE configuration */
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203 #ifdef USE_TTY_NOICE
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204 static volatile char VUART_TX __attribute__ ((section (".noice_port")));
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205 static volatile char VUART_RX __attribute__ ((section (".noice_port")));
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206 volatile unsigned char START_VUART = 0;
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213 // This must be in un-cached space....
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215 static volatile char t32_outport __attribute__ ((section (".t32_outport")));
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217 void t32_writebyte(char c)
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219 /* T32 can hang here for several reasons;
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220 * - term.view e:address.offset(v.address(t32_outport)) e:0
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223 while (t32_outport != 0 ) ; /* wait until port is free */
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224 t32_outport = c; /* send character */
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232 int close( int fd ) {
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237 char *__env[1] = { 0 };
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238 char **environ = __env;
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246 int execve(const char *path, char * const argv[], char * const envp[] ) {
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247 //int execve(char *name, char **argv, char **env){
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260 #include <sys/stat.h>
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261 int fstat(int file, struct stat *st) {
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263 st->st_mode = S_IFCHR;
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267 /* Returns 1 if connected to a terminal. T32 can be a terminal
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270 int isatty( int fd )
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277 int fstat( int fd, struct stat *buf )
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279 buf->st_mode = S_IFCHR;
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280 buf->st_blksize = 0;
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286 /* reposition read/write file offset
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287 * We can't seek, return error.*/
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288 off_t lseek( int fd, off_t offset,int whence)
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295 return ((off_t)-1);
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298 int open(const char *name, int flags, int mode){
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303 #if defined(USE_RAMLOG)
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304 if( strcmp(name,"ramlog") == 0 ) {
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305 return FILE_RAMLOG;
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312 int read( int fd, void *buf, size_t nbytes )
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317 #ifdef USE_TTY_WINIDEA
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318 (void)g_TRBuffer[0];
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321 #ifdef USE_TTY_NOICE
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322 // Not tested at all
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324 while (VUART_RX != 0)
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332 /* Only support write for now, return 0 read */
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337 int write( int fd, const void *_buf, size_t nbytes)
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339 //(void)fd; // Normally 0- ?, 1-stdout, 2-stderr,
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343 if( fd <= STDERR_FILENO ) {
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344 #ifdef USE_TTY_NOICE
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345 char *buf1 = (char *)_buf;
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348 for (int i = 0; i < nbytes; i++) {
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352 while (VUART_TX != 0)
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359 while (VUART_TX != 0)
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368 #ifdef USE_TTY_WINIDEA
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371 char *buf = (char *)_buf;
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372 unsigned char nCnt,nLen;
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373 for(nCnt=0; nCnt<nbytes; nCnt++)
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375 while(TWBUFF_FULL()) ;
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377 g_TWBuffer[nLen]=buf[nCnt];
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378 nLen=TWBUFF_INC(nLen);
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385 char *buf = (char *)_buf;
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386 for (int i = 0; i < nbytes; i++) {
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387 if (*(buf + i) == '\n') {
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388 t32_writebyte ('\r');
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389 // t32_writebyte ('\n');
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391 t32_writebyte (*(buf + i));
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395 #ifdef USE_TTY_ARM_ITM
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396 char *buf = (char *)_buf;
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397 for (int i = 0; i < nbytes; i++) {
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398 ITM_SendChar(*(buf + i));
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402 #ifdef USE_TTY_TCF_STREAMS
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403 char *buf = (char *)_buf;
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404 for (int i = 0; i < nbytes; i++) {
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405 TCF_TTY_SendChar(*(buf + i));
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409 #ifdef USE_TTY_CODE_COMPOSER
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410 HOSTwrite(fd, _buf, nbytes);
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413 #ifdef USE_TTY_TMS570_KEIL
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414 for (int i = 0; i < nbytes; i++) {
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415 GLCD_PrintChar((char *)(_buf + i));
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419 #if defined(USE_RAMLOG)
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421 char *buf = (char *)_buf;
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422 for (int i = 0; i < nbytes; i++) {
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423 ramlog_chr (*(buf + i));
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431 #if defined(USE_RAMLOG)
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432 /* RAMLOG support */
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433 if(fd == FILE_RAMLOG) {
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434 char *buf = (char *)_buf;
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435 for (int i = 0; i < nbytes; i++) {
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436 ramlog_chr (*(buf + i));
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445 int arc_putchar(int fd, int c) {
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452 /* If we use malloc and it runs out of memory it calls sbrk()
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457 /* linker symbols */
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458 extern char _heap_start;
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459 extern char _heap_end; // same as _end?
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461 void * sbrk( ptrdiff_t incr )
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464 static char *nextAvailMemPtr = (char *)&_heap_start;
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466 if( nextAvailMemPtr + incr > (char*)&_heap_end) {
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467 write( 2, "Heap overflow!\n", 15 );
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470 prevEnd = nextAvailMemPtr;
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471 nextAvailMemPtr += incr;
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475 extern char _end[];
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477 //static char *curbrk = _end;
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480 #define HEAPSIZE 16000
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484 * The heap sadly have alignment that depends on the pagesize that
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485 * you compile malloc newlib with. From what I can tell from the
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486 * code that is a pagesize of 4096.
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489 unsigned char _heap[HEAPSIZE] __attribute__((aligned (4)));
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490 //__attribute__((section(".heap")));
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492 void * sbrk( ptrdiff_t incr )
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494 static unsigned char *heap_end;
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495 unsigned char *prev_heap_end;
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498 if( heap_end == 0 ){
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501 prev_heap_end = heap_end;
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503 if( heap_end + incr - _heap > HEAPSIZE ) {
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504 /* heap overflow - announce on stderr */
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505 write( 2, "Heap overflow!\n", 15 );
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511 return (caddr_t) prev_heap_end;
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515 int stat( const char *file, struct stat *st ) {
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516 //int stat(char *file, struct stat *st) {
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518 st->st_mode = S_IFCHR;
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530 int kill(int pid, int sig){
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538 /* Should not really be here, but .. */
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546 #if defined(__GNUC__)
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547 void __init( void )
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552 #if defined(CFG_ARM)
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553 void _exit( int status ) {
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554 #ifdef USE_TTY_CODE_COMPOSER
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555 __asm(" .global C$$EXIT");
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556 __asm("C$$EXIT: nop");
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