static int asc2nibble(char c) {
- if ((c >= '0') && (c <= '9'))
- return c - '0';
+ if ((c >= '0') && (c <= '9'))
+ return c - '0';
- if ((c >= 'A') && (c <= 'F'))
- return c - 'A' + 10;
+ if ((c >= 'A') && (c <= 'F'))
+ return c - 'A' + 10;
- if ((c >= 'a') && (c <= 'f'))
- return c - 'a' + 10;
+ if ((c >= 'a') && (c <= 'f'))
+ return c - 'a' + 10;
- return 16; /* error */
+ return 16; /* error */
}
int parse_canframe(char *cs, struct can_frame *cf) {
- /* documentation see lib.h */
+ /* documentation see lib.h */
- int i, idx, dlc, len, tmp;
+ int i, idx, dlc, len, tmp;
- len = strlen(cs);
- //printf("'%s' len %d\n", cs, len);
+ len = strlen(cs);
+ //printf("'%s' len %d\n", cs, len);
- memset(cf, 0, sizeof(*cf)); /* init CAN frame, e.g. DLC = 0 */
+ memset(cf, 0, sizeof(*cf)); /* init CAN frame, e.g. DLC = 0 */
- if (len < 4)
- return 1;
-
- if (!((cs[3] == CANID_DELIM) || (cs[8] == CANID_DELIM)))
- return 1;
-
- if (cs[8] == CANID_DELIM) { /* 8 digits */
-
- idx = 9;
- for (i=0; i<8; i++){
- if ((tmp = asc2nibble(cs[i])) > 0x0F)
+ if (len < 4)
return 1;
- cf->can_id |= (tmp << (7-i)*4);
- }
- if (!(cf->can_id & CAN_ERR_FLAG)) /* 8 digits but no errorframe? */
- cf->can_id |= CAN_EFF_FLAG; /* then it is an extended frame */
- } else { /* 3 digits */
-
- idx = 4;
- for (i=0; i<3; i++){
- if ((tmp = asc2nibble(cs[i])) > 0x0F)
+ if (!((cs[3] == CANID_DELIM) || (cs[8] == CANID_DELIM)))
return 1;
- cf->can_id |= (tmp << (2-i)*4);
+
+ if (cs[8] == CANID_DELIM) { /* 8 digits */
+
+ idx = 9;
+ for (i=0; i<8; i++){
+ if ((tmp = asc2nibble(cs[i])) > 0x0F)
+ return 1;
+ cf->can_id |= (tmp << (7-i)*4);
+ }
+ if (!(cf->can_id & CAN_ERR_FLAG)) /* 8 digits but no errorframe? */
+ cf->can_id |= CAN_EFF_FLAG; /* then it is an extended frame */
+
+ } else { /* 3 digits */
+
+ idx = 4;
+ for (i=0; i<3; i++){
+ if ((tmp = asc2nibble(cs[i])) > 0x0F)
+ return 1;
+ cf->can_id |= (tmp << (2-i)*4);
+ }
}
- }
- if((cs[idx] == 'R') || (cs[idx] == 'r')){ /* RTR frame */
- cf->can_id |= CAN_RTR_FLAG;
- return 0;
- }
+ if((cs[idx] == 'R') || (cs[idx] == 'r')){ /* RTR frame */
+ cf->can_id |= CAN_RTR_FLAG;
+ return 0;
+ }
- for (i=0, dlc=0; i<8; i++){
+ for (i=0, dlc=0; i<8; i++){
- if(cs[idx] == DATA_SEPERATOR) /* skip (optional) seperator */
- idx++;
+ if(cs[idx] == DATA_SEPERATOR) /* skip (optional) seperator */
+ idx++;
- if(idx >= len) /* end of string => end of data */
- break;
+ if(idx >= len) /* end of string => end of data */
+ break;
- if ((tmp = asc2nibble(cs[idx++])) > 0x0F)
- return 1;
- cf->data[i] = (tmp << 4);
- if ((tmp = asc2nibble(cs[idx++])) > 0x0F)
- return 1;
- cf->data[i] |= tmp;
- dlc++;
- }
+ if ((tmp = asc2nibble(cs[idx++])) > 0x0F)
+ return 1;
+ cf->data[i] = (tmp << 4);
+ if ((tmp = asc2nibble(cs[idx++])) > 0x0F)
+ return 1;
+ cf->data[i] |= tmp;
+ dlc++;
+ }
- cf->can_dlc = dlc;
+ cf->can_dlc = dlc;
- return 0;
+ return 0;
}
void fprint_canframe(FILE *stream , struct can_frame *cf, char *eol, int sep) {
- /* documentation see lib.h */
+ /* documentation see lib.h */
- char buf[sizeof(MAX_CANFRAME)+1]; /* max length */
+ char buf[sizeof(MAX_CANFRAME)+1]; /* max length */
- sprint_canframe(buf, cf, sep);
- fprintf(stream, "%s", buf);
- if (eol)
- fprintf(stream, "%s", eol);
+ sprint_canframe(buf, cf, sep);
+ fprintf(stream, "%s", buf);
+ if (eol)
+ fprintf(stream, "%s", eol);
}
void sprint_canframe(char *buf , struct can_frame *cf, int sep) {
- /* documentation see lib.h */
-
- int i,offset;
-
- if (cf->can_id & CAN_ERR_FLAG) {
- sprintf(buf, "%08X#", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
- offset = 9;
- } else if (cf->can_id & CAN_EFF_FLAG) {
- sprintf(buf, "%08X#", cf->can_id & CAN_EFF_MASK);
- offset = 9;
- } else {
- sprintf(buf, "%03X#", cf->can_id & CAN_SFF_MASK);
- offset = 4;
- }
-
- if (cf->can_id & CAN_RTR_FLAG) /* there are no ERR frames with RTR */
- sprintf(buf+offset, "R");
- else
- for (i = 0; i < cf->can_dlc; i++) {
- sprintf(buf+offset, "%02X", cf->data[i]);
- offset += 2;
- if (sep && (i+1 < cf->can_dlc))
- sprintf(buf+offset++, ".");
+ /* documentation see lib.h */
+
+ int i,offset;
+
+ if (cf->can_id & CAN_ERR_FLAG) {
+ sprintf(buf, "%08X#", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
+ offset = 9;
+ } else if (cf->can_id & CAN_EFF_FLAG) {
+ sprintf(buf, "%08X#", cf->can_id & CAN_EFF_MASK);
+ offset = 9;
+ } else {
+ sprintf(buf, "%03X#", cf->can_id & CAN_SFF_MASK);
+ offset = 4;
}
+ if (cf->can_id & CAN_RTR_FLAG) /* there are no ERR frames with RTR */
+ sprintf(buf+offset, "R");
+ else
+ for (i = 0; i < cf->can_dlc; i++) {
+ sprintf(buf+offset, "%02X", cf->data[i]);
+ offset += 2;
+ if (sep && (i+1 < cf->can_dlc))
+ sprintf(buf+offset++, ".");
+ }
+
}
void fprint_long_canframe(FILE *stream , struct can_frame *cf, char *eol, int view) {
- /* documentation see lib.h */
+ /* documentation see lib.h */
- char buf[sizeof(MAX_LONG_CANFRAME)+1]; /* max length */
+ char buf[sizeof(MAX_LONG_CANFRAME)+1]; /* max length */
- sprint_long_canframe(buf, cf, view);
- fprintf(stream, "%s", buf);
- if (eol)
- fprintf(stream, "%s", eol);
+ sprint_long_canframe(buf, cf, view);
+ fprintf(stream, "%s", buf);
+ if (eol)
+ fprintf(stream, "%s", eol);
}
void sprint_long_canframe(char *buf , struct can_frame *cf, int view) {
- /* documentation see lib.h */
-
- int i, j, dlen, offset;
-
- if (cf->can_id & CAN_ERR_FLAG) {
- sprintf(buf, "%8X ", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
- offset = 10;
- } else if (cf->can_id & CAN_EFF_FLAG) {
- sprintf(buf, "%8X ", cf->can_id & CAN_EFF_MASK);
- offset = 10;
- } else {
- sprintf(buf, "%3X ", cf->can_id & CAN_SFF_MASK);
- offset = 5;
- }
-
- sprintf(buf+offset, "[%d]", cf->can_dlc);
- offset += 3;
-
- if (cf->can_id & CAN_RTR_FLAG) { /* there are no ERR frames with RTR */
- sprintf(buf+offset, " remote request");
- return;
- }
-
- if (view & CANLIB_VIEW_BINARY) {
- dlen = 9; /* _10101010 */
- for (i = 0; i < cf->can_dlc; i++) {
- buf[offset++] = ' ';
- for (j = 7; j >= 0; j--)
- buf[offset++] = (1<<j & cf->data[i])?'1':'0';
+ /* documentation see lib.h */
+
+ int i, j, dlen, offset;
+
+ if (cf->can_id & CAN_ERR_FLAG) {
+ sprintf(buf, "%8X ", cf->can_id & (CAN_ERR_MASK|CAN_ERR_FLAG));
+ offset = 10;
+ } else if (cf->can_id & CAN_EFF_FLAG) {
+ sprintf(buf, "%8X ", cf->can_id & CAN_EFF_MASK);
+ offset = 10;
+ } else {
+ sprintf(buf, "%3X ", cf->can_id & CAN_SFF_MASK);
+ offset = 5;
+ }
+
+ sprintf(buf+offset, "[%d]", cf->can_dlc);
+ offset += 3;
+
+ if (cf->can_id & CAN_RTR_FLAG) { /* there are no ERR frames with RTR */
+ sprintf(buf+offset, " remote request");
+ return;
}
- buf[offset] = 0; /* terminate string */
- } else {
- dlen = 3; /* _AA */
- for (i = 0; i < cf->can_dlc; i++) {
- sprintf(buf+offset, " %02X", cf->data[i]);
- offset += dlen;
+
+ if (view & CANLIB_VIEW_BINARY) {
+ dlen = 9; /* _10101010 */
+ for (i = 0; i < cf->can_dlc; i++) {
+ buf[offset++] = ' ';
+ for (j = 7; j >= 0; j--)
+ buf[offset++] = (1<<j & cf->data[i])?'1':'0';
+ }
+ buf[offset] = 0; /* terminate string */
+ } else {
+ dlen = 3; /* _AA */
+ for (i = 0; i < cf->can_dlc; i++) {
+ sprintf(buf+offset, " %02X", cf->data[i]);
+ offset += dlen;
+ }
}
- }
-
- if (cf->can_id & CAN_ERR_FLAG)
- sprintf(buf+offset, "%*s", dlen*(8-cf->can_dlc)+13, "ERRORFRAME");
- else if (view & CANLIB_VIEW_ASCII) {
- j = dlen*(8-cf->can_dlc)+4;
- sprintf(buf+offset, "%*s", j, "'");
- offset += j;
-
- for (i = 0; i < cf->can_dlc; i++)
- if ((cf->data[i] > 0x1F) && (cf->data[i] < 0x7F))
- buf[offset++] = cf->data[i];
- else
- buf[offset++] = '.';
-
- sprintf(buf+offset, "'");
- }
+
+ if (cf->can_id & CAN_ERR_FLAG)
+ sprintf(buf+offset, "%*s", dlen*(8-cf->can_dlc)+13, "ERRORFRAME");
+ else if (view & CANLIB_VIEW_ASCII) {
+ j = dlen*(8-cf->can_dlc)+4;
+ sprintf(buf+offset, "%*s", j, "'");
+ offset += j;
+
+ for (i = 0; i < cf->can_dlc; i++)
+ if ((cf->data[i] > 0x1F) && (cf->data[i] < 0x7F))
+ buf[offset++] = cf->data[i];
+ else
+ buf[offset++] = '.';
+
+ sprintf(buf+offset, "'");
+ }
}
projects / socketcan-devel.git / blobdiff