G_MODULE_EXPORT gdouble temp_to_ecu(gdouble in)
{
gdouble res = 0.0;
static Firmware_Details *firmware = NULL;
TempUnits mtx_temp_units = (TempUnits)DATA_GET(global_data,"mtx_temp_units");
if (!firmware)
firmware = DATA_GET(global_data,"firmware");
g_return_val_if_fail(firmware,in);
g_return_val_if_fail(DATA_GET(global_data,"mtx_temp_units"),in);
if(firmware->ecu_temp_units == mtx_temp_units)
res = in;
else if ((firmware->ecu_temp_units == CELSIUS) && (mtx_temp_units == FAHRENHEIT))
res = f_to_c(in);
else if ((firmware->ecu_temp_units == CELSIUS) && (mtx_temp_units == KELVIN))
res = k_to_c(in);
else if ((firmware->ecu_temp_units == FAHRENHEIT) && (mtx_temp_units == KELVIN))
res = k_to_f(in);
else if ((firmware->ecu_temp_units == FAHRENHEIT) && (mtx_temp_units == CELSIUS))
res = c_to_f(in);
else if ((firmware->ecu_temp_units == KELVIN) && (mtx_temp_units == CELSIUS))
res = c_to_k(in);
else if ((firmware->ecu_temp_units == KELVIN) && (mtx_temp_units == FAHRENHEIT))
res = f_to_k(in);
else
{
printf("temp_to_ecu(): BUG couldn't figure out temp conversion!\n");
res = in;
}
return res;
}
/*!
\brief convert_temps() changes the values of controls based on the currently
selected temperature scale. IT works for labels, spinbuttons, etc...
\param widget (gpointer) pointer to the widget that contains the necessary
paramaters re temp (Alt label, etc)
\param units (gpointer) the temp scale selected
*/
G_MODULE_EXPORT void convert_temps(gpointer widget, gpointer units)
{
static void (*update_widget_f)(gpointer, gpointer);
static gboolean (*check_deps)(gconstpointer *) = NULL;
gconstpointer *dep_obj = NULL;
gfloat upper = 0.0;
gfloat lower = 0.0;
gfloat value = 0.0;
gchar * text = NULL;
GtkAdjustment * adj = NULL;
gboolean state = FALSE;
gint widget_temp = -1;
/*extern GdkColor black;*/
extern gconstpointer *global_data;
/* If this widgt depends on anything call check_dependancy which will
* return TRUE/FALSE. True if what it depends on is in the matching
* state, FALSE otherwise...
*/
if ((!widget) || (DATA_GET(global_data,"leaving")))
return;
if (!check_deps)
if (!get_symbol("check_dependancies",(void *)&check_deps))
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tCan NOT locate \"check_dependancies\" function pointer in plugins, BUG!\n"));
if (!update_widget_f)
if(!get_symbol("update_widget",(void *)&update_widget_f))
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tCan NOT locate \"update_widget\" function pointer in plugins, BUG!\n"));
dep_obj = (gconstpointer *)OBJ_GET(widget,"dep_object");
widget_temp = (GINT)OBJ_GET(widget,"widget_temp");
if (dep_obj)
{
if (check_deps)
state = check_deps(dep_obj);
else
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tWidget %s has dependant object bound but can't locate function ptr for \"check_dependancies\" from plugins, BUG!\n",glade_get_widget_name(widget)));
}
switch ((TempUnits)units)
{
case FAHRENHEIT:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_f_label");
else
text = (gchar *)OBJ_GET(widget,"f_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != FAHRENHEIT))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == CELSIUS)
{
adj->value = c_to_f(value);
adj->lower = c_to_f(lower);
adj->upper = c_to_f(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_f(value);
adj->lower = k_to_f(lower);
adj->upper = k_to_f(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != FAHRENHEIT))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != FAHRENHEIT))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == CELSIUS)
{
adj->value = c_to_f(value);
adj->lower = c_to_f(lower);
adj->upper = c_to_f(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_f(value);
adj->lower = k_to_f(lower);
adj->upper = k_to_f(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
case CELSIUS:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_c_label");
else
text = (gchar *)OBJ_GET(widget,"c_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != CELSIUS))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_c(value);
adj->lower = f_to_c(lower);
adj->upper = f_to_c(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_c(value);
adj->lower = k_to_c(lower);
adj->upper = k_to_c(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != CELSIUS))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != CELSIUS))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_c(value);
adj->lower = f_to_c(lower);
adj->upper = f_to_c(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_c(value);
adj->lower = k_to_c(lower);
adj->upper = k_to_c(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
case KELVIN:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_k_label");
else
text = (gchar *)OBJ_GET(widget,"k_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != KELVIN))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_k(value);
adj->lower = f_to_k(lower);
adj->upper = f_to_k(upper);
}
else /* Previous is celsius */
{
adj->value = c_to_k(value);
adj->lower = c_to_k(lower);
adj->upper = c_to_k(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != KELVIN))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != KELVIN))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_k(value);
adj->lower = f_to_k(lower);
adj->upper = f_to_k(upper);
}
else /* Previous is celsius */
{
adj->value = c_to_k(value);
adj->lower = c_to_k(lower);
adj->upper = c_to_k(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
}
}
int main(int argc, char **argv) {
signed int result,temp;
double temperature;
int i2c_fd;
unsigned char buffer[16];
double vobject,tambient;
i2c_fd=init_i2c("/dev/i2c-1");
if (i2c_fd < 0) {
fprintf(stderr,"Error opening device!\n");
return -1;
}
#define TMP006_ADDR 0x40
#define TMP006_VOBJ_ADDR 0x0
#define TMP006_TAMBIENT_ADDR 0x1
#define TMP006_CONFIG 0x2
#define TMP006_MANID 0xfe
#define TMP006_DEVID 0xff
/* Init TMP006 */
if (ioctl(i2c_fd, I2C_SLAVE, TMP006_ADDR) < 0) {
fprintf(stderr,"Error setting i2c address %x\n",
TMP006_ADDR);
return -1;
}
/* Point to config register */
/* Start measurements */
buffer[0]=TMP006_CONFIG;
buffer[1]=0x74;
buffer[2]=0x00; /* active, default conversion rate, drdy disabled */
if ( (write(i2c_fd, &buffer, 3)) !=3) {
fprintf(stderr,"Error setting config addr!\n");
return -1;
}
while(1) {
/* Read Vobject */
buffer[0]=TMP006_VOBJ_ADDR;
if ( (write(i2c_fd, &buffer, 1)) !=1) {
fprintf(stderr,"Error setting vobj addr!\n");
return -1;
}
if ( (read(i2c_fd, &buffer, 2)) !=2) {
fprintf(stderr,"Error reading vobj!\n");
return -1;
}
temp=((buffer[0]<<8) | buffer[1]);
if (temp&0x8000) temp|=0xffff0000;
vobject=temp*156.25e-9; /* 156.25nV */
// printf("Inout: %x Vobject=%.2lf V\n",
// temp,vobject);
/* Read Tambient */
buffer[0]=TMP006_TAMBIENT_ADDR;
if ( (write(i2c_fd, &buffer, 1)) !=1) {
fprintf(stderr,"Error setting vobj addr!\n");
return -1;
}
if ( (read(i2c_fd, buffer, 2)) !=2) {
fprintf(stderr,"Error reading vobj!\n");
return -1;
}
temp=((buffer[0]<<8) | buffer[1]);
tambient=(temp>>2)/32.0;
// printf("Inout: %x Tambient=%.2lf C\n",
// temp,tambient);
temperature=calculate_temp(
vobject,
tambient+272.15);
printf("%.3lf (* C, %.3lfK %.3lfF *)\n",
temperature-272.15,
temperature,
c_to_f(temperature-272.15));
// printf("Temp=%.3lf K %.3lfC %.3lfF\n",
// temperature,temperature-272.15,
// c_to_f(temperature-272.15));
sleep(1);
}
return result;
}
