void constructor(void) {
_Static_assert(sizeof(BrickContext) <= BRICKLET_CONTEXT_MAX_SIZE, "BrickContext too big");
PIN_ENABLE.type = PIO_OUTPUT_0;
PIN_ENABLE.attribute = PIO_DEFAULT;
BA->PIO_Configure(&PIN_ENABLE, 1);
PIN_FEEDBACK.type = PIO_INPUT;
PIN_FEEDBACK.attribute = PIO_DEFAULT;
BA->PIO_Configure(&PIN_FEEDBACK, 1);
BC->morse_pos = 60;
BC->morse_duration = 0;
BC->morse_buzz = false;
BC->beep_duration = BEEP_DURATION_OFF;
BC->morse_length = 0;
load_calibration();
}
/* callback used by sane_get_devices
* build the scanner struct and link to global list
* unless struct is already loaded, then pretend
*/
static SANE_Status
attach_one (const char *device_name)
{
struct scanner *s;
int ret, i;
SANE_Word vid, pid;
DBG (10, "attach_one: start '%s'\n", device_name);
for (s = scanner_devList; s; s = s->next) {
if (strcmp (s->sane.name, device_name) == 0) {
DBG (10, "attach_one: already attached!\n");
return SANE_STATUS_GOOD;
}
}
/* build a scanner struct to hold it */
DBG (15, "attach_one: init struct\n");
if ((s = calloc (sizeof (*s), 1)) == NULL)
return SANE_STATUS_NO_MEM;
/* copy the device name */
s->device_name = strdup (device_name);
if (!s->device_name){
free (s);
return SANE_STATUS_NO_MEM;
}
/* connect the fd */
DBG (15, "attach_one: connect fd\n");
s->fd = -1;
ret = connect_fd(s);
if(ret != SANE_STATUS_GOOD){
free (s->device_name);
free (s);
return ret;
}
/* clean up the scanner struct based on model */
/* this is the only piece of model specific code */
sanei_usb_get_vendor_product(s->fd,&vid,&pid);
if(vid == 0x08f0){
s->vendor_name = "CardScan";
if(pid == 0x0005){
s->product_name = "800c";
}
else if(pid == 0x0002){
s->product_name = "600c";
}
else{
DBG (5, "Unknown product, using default settings\n");
s->product_name = "Unknown";
}
}
else if(vid == 0x0451){
s->vendor_name = "Sanford";
if(pid == 0x6250){
s->product_name = "800c";
}
else{
DBG (5, "Unknown product, using default settings\n");
s->product_name = "Unknown";
}
}
else{
DBG (5, "Unknown vendor/product, using default settings\n");
s->vendor_name = "Unknown";
s->product_name = "Unknown";
}
DBG (15, "attach_one: Found %s scanner %s at %s\n",
s->vendor_name, s->product_name, s->device_name);
/*copy config file settings*/
s->has_cal_buffer = global_has_cal_buffer;
s->lines_per_block = global_lines_per_block;
s->color_block_size = s->lines_per_block * PIXELS_PER_LINE * 3;
s->gray_block_size = s->lines_per_block * PIXELS_PER_LINE;
/* try to get calibration */
if(s->has_cal_buffer){
DBG (15, "attach_one: scanner calibration\n");
ret = load_calibration(s);
if (ret != SANE_STATUS_GOOD) {
DBG (5, "sane_start: ERROR: cannot calibrate, incompatible?\n");
free (s->device_name);
free (s);
return ret;
}
}
else{
DBG (15, "attach_one: skipping calibration\n");
}
/* set SANE option 'values' to good defaults */
DBG (15, "attach_one: init options\n");
/* go ahead and setup the first opt, because
* frontend may call control_option on it
* before calling get_option_descriptor
*/
memset (s->opt, 0, sizeof (s->opt));
for (i = 0; i < NUM_OPTIONS; ++i) {
s->opt[i].name = "filler";
s->opt[i].size = sizeof (SANE_Word);
s->opt[i].cap = SANE_CAP_INACTIVE;
}
s->opt[OPT_NUM_OPTS].name = SANE_NAME_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
s->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
DBG (15, "attach_one: init settings\n");
/* we close the connection, so that another backend can talk to scanner */
disconnect_fd(s);
/* load info into sane_device struct */
s->sane.name = s->device_name;
s->sane.vendor = s->vendor_name;
s->sane.model = s->product_name;
s->sane.type = "scanner";
s->next = scanner_devList;
scanner_devList = s;
DBG (10, "attach_one: finish\n");
return SANE_STATUS_GOOD;
}