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#ifndef SPYD2SETUP_H
/*
* Argyll Color Correction System
*
* ColorVision Spyder 2 related software.
*
* Author: Graeme W. Gill
* Date: 19/10/2006
*
* Copyright 2006 - 2013, Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :-
* see the License2.txt file for licencing details.
*/
/* This file is only included in top utilities that need to */
/* be able to access the Spyder 2 colorimeter. This provides */
/* a mechanism for ensuring that only such utilities load the */
/* proprietary Spyder firmware, as well as providing a means to */
/* detect if the spyder driver is going to be funcional. */
#ifdef __cplusplus
extern "C" {
#endif
extern unsigned int *spyder2_pld_size; /* in spyd2.c */
extern unsigned char *spyder2_pld_bytes;
#ifdef __cplusplus
}
#endif
/* Return 0 if Spyder 2 firmware is not available */
/* Return 1 if Spyder 2 firmware is available from an external file */
/* Return 2 if Spyder 2 firmware is part of this executable */
int setup_spyd2() {
#ifdef ENABLE_USB
static int loaded = 0; /* Was loaded from a file */
char **bin_paths = NULL;
int no_paths = 0;
unsigned int size, rsize;
FILE *fp;
int i;
/* Spyder 2 Colorimeter Xilinx XCS05XL firmware pattern. */
/* This is a placeholder in the distributed files. */
/* It could be replaced with the actual end users firmware */
/* by using the spyd2trans utility, but normally the spyd2PLD.bin */
/* file is loaded instead. */
#include "spyd2PLD.h"
spyder2_pld_size = &pld_size;
spyder2_pld_bytes = pld_bytes;
/* If no firmware compiled in, see if there is a file to load from. */
if ((pld_size == 0 || pld_size == 0x11223344) && loaded == 0) {
for (;;) { /* So we can break out */
if ((no_paths = xdg_bds(NULL, &bin_paths, xdg_data, xdg_read, xdg_user,
"ArgyllCMS/spyd2PLD.bin" XDG_FUDGE "color/spyd2PLD.bin"
)) < 1) {
a1logd(g_log, 1, "setup_spyd2: failed to find PLD file\n");
break;
}
/* open binary file */
#if !defined(O_CREAT) && !defined(_O_CREAT)
# error "Need to #include fcntl.h!"
#endif
#if defined(O_BINARY) || defined(_O_BINARY)
if ((fp = fopen(bin_paths[0],"rb")) == NULL)
#else
if ((fp = fopen(bin_paths[0],"r")) == NULL)
#endif
break;
xdg_free(bin_paths, no_paths);
/* Figure out how file it is */
if (fseek(fp, 0, SEEK_END)) {
fclose(fp);
break;
}
size = (unsigned long)ftell(fp);
if (size > pld_space)
size = pld_space;
if (fseek(fp, 0, SEEK_SET)) {
fclose(fp);
break;
}
if (fread(pld_bytes, 1, size, fp) != size) {
fclose(fp);
break;
}
pld_size = size;
loaded = 1; /* We've loaded it from a file */
// a1logd(g_log,0,"Spyder2 pld bytes = 0x%x 0x%x 0x%x 0x%x\n",pld_bytes[0], pld_bytes[1], pld_bytes[2], pld_bytes[3]);
fclose(fp);
break;
}
}
if (pld_size != 0 && pld_size != 0x11223344) {
if (loaded)
return 1; /* Was loaded from a file */
return 2; /* Was compiled in */
}
#endif /* ENABLE_USB */
return 0; /* Not available */
}
#define SPYD2SETUP_H
#endif /* SPYD2SETUP_H */
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