diff options
Diffstat (limited to 'src/lm75.c')
| -rw-r--r-- | src/lm75.c | 40 |
1 files changed, 21 insertions, 19 deletions
@@ -15,6 +15,7 @@ extern uint16 devicef; extern void bus_err(int ern); extern void print_help(void); +extern uchar *xchg_data (uchar *buf, uint8 wrlen, uint8 waitlen, uint8 rdlen); uchar buf[32]; @@ -40,21 +41,21 @@ void lm75_print_all(void) } -uchar *xchg_data (uchar *buf, uint8 wrlen, uint8 waitlen, uint8 rdlen){ //# [buf] = 32 byte +// uchar *xchg_data (uchar *buf, uint8 wrlen, uint8 waitlen, uint8 rdlen){ //# [buf] = 32 byte - if(write(devicef, buf, wrlen) != wrlen){ //# write one byte to device - bus_err(errno); - } - usleep(waitlen*1000); //# Wait 10ms for reading +// if(write(devicef, buf, wrlen) != wrlen){ //# write one byte to device +// bus_err(errno); +// } +// usleep(waitlen*1000); //# Wait 10ms for reading - if(read(devicef, buf, rdlen) != rdlen) { //# read the result - bus_err(errno); - } - return buf; -} +// if(read(devicef, buf, rdlen) != rdlen) { //# read the result +// bus_err(errno); +// } +// return buf; +// } -float calculate_temp(float offset){ // Calculate temperature +static float calc_temp(float offset){ // Calculate temperature uint16 rawtemp = 0; //# Signed by default float temp; @@ -73,7 +74,7 @@ float calculate_temp(float offset){ // Calculate temperature } -float read_tos(void){ // Over-Temperature Shutdown register +static float read_tos(void){ // Over-Temperature Shutdown register uint16 rawtemp = 0; //# Int16 default signed buf[0] = 0x03; //# Tos = REG[2] xchg_data(buf,1,0,2); @@ -91,7 +92,7 @@ float read_tos(void){ // Over-Temperature Shutdown reg } -float read_thys(void){ // Over-Temp Hysteresis Register +static float read_thys(void){ // Over-Temp Hysteresis Register uint16 rawtemp = 0; //# signed buf[0] = 0x02; xchg_data(buf,1,0,2); //# read from REG[3] @@ -108,7 +109,7 @@ float read_thys(void){ // Over-Temp Hysteresis Register } -uchar read_conf(void){ //Configuration register +static uchar read_conf(void){ //Configuration register buf[0] = 0x01; xchg_data(buf,1,0,1); return buf[0]; @@ -118,9 +119,9 @@ uchar read_conf(void){ //Configuration register void lm75_read_all(const uchar *opts){ // Print out whole device's data // if(opts != NULL) // { - // printf("00:%f\n", calculate_temp(strtof(opts, NULL))); + // printf("00:%f\n", calc_temp(strtof(opts, NULL))); // } else { - printf("00:%f\n", calculate_temp(0.0)); + printf("00:%f\n", calc_temp(0.0)); // } printf("01:0x%x\n", read_conf()); printf("02:%f\n", read_thys()); @@ -143,6 +144,7 @@ void lm75_read_one(const uchar *opts){ // Prints the selected r if( !isdigit(*(opts+i)) ){ //# Check the register string printf("The Register address must be an integer!\n"); print_help(); + lm75_print_all(); exit (EXIT_FAILURE); } temp[i] = *(opts+i); //# copy register string @@ -156,7 +158,7 @@ void lm75_read_one(const uchar *opts){ // Prints the selected r switch (id) //# Which register is selected? { case 0x00: - printf("%f\n", calculate_temp(atof((char*)temp))); //# with the offset + printf("%f\n", calc_temp(atof((char*)temp))); //# with the offset break; case 0x01: printf("0x%x\n", read_conf()); @@ -176,11 +178,11 @@ void lm75_read_one(const uchar *opts){ // Prints the selected r void lm75_conf_set(const uchar *opts){ // Prints the selected register's data - uint16 i,j; + uint16 i; uchar temp[256]; if(opts != NULL){ - for(i = 0; i < strlen((char*)opts); i++, j++){ + for(i = 0; i < strlen((char*)opts); i++){ if (*(opts+i) == ','){ //# .... conf_set 0x49 thys,-10.5 break; } |