static int validate_flash_release(struct inode *inode, struct file *file)
{
struct rtas_validate_flash_t *const args_buf =
&rtas_validate_flash_data;
mutex_lock(&rtas_validate_flash_mutex);
if (args_buf->status == VALIDATE_READY) {
args_buf->buf_size = VALIDATE_BUF_SIZE;
validate_flash(args_buf);
}
mutex_unlock(&rtas_validate_flash_mutex);
return 0;
}
static int validate_flash_release(struct inode *inode, struct file *file)
{
struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
struct rtas_validate_flash_t *args_buf;
args_buf = (struct rtas_validate_flash_t *) dp->data;
if (args_buf->status == VALIDATE_READY) {
args_buf->buf_size = VALIDATE_BUF_SIZE;
validate_flash(args_buf);
}
atomic_dec(&dp->count);
return 0;
}
static int validate_flash_release(struct inode *inode, struct file *file)
{
struct proc_dir_entry *dp = PDE(file_inode(file));
struct rtas_validate_flash_t *args_buf;
args_buf = (struct rtas_validate_flash_t *) dp->data;
if (args_buf->status == VALIDATE_READY) {
args_buf->buf_size = VALIDATE_BUF_SIZE;
validate_flash(args_buf);
}
/* The matching atomic_inc was in rtas_excl_open() */
atomic_dec(&dp->count);
return 0;
}
void flash(char *file, unsigned char skip_validation) {
FILE *fp;
long flash_length;
char *flash_data;
struct mpsse_context *mpsse;
printf("reading input file..");
fflush(stdout);
fp = fopen(file, "r");
if (!fp) {
printf("failed!\n");
fprintf(stderr, "error: could not open '%s'", file);
exit(1);
}
fseek(fp, 0L, SEEK_END);
flash_length = ftell(fp);
if (!flash_length) {
printf("failed!\n");
fprintf(stderr, "error: file length was 0 bytes\n");
fclose(fp);
exit(1);
}
if (flash_length > N25Q128A_TOTAL_BYTES) {
printf("failed!\n");
fprintf(stderr, "error: file length exceeds flash capacity\n");
fclose(fp);
exit(1);
}
rewind(fp);
flash_data = (char *)malloc(flash_length * sizeof(char));
if (!flash_data) {
printf("failed!\n");
fprintf(stderr, "error: could not allocate memory");
fclose(fp);
exit(1);
}
if (fread(flash_data, 1, flash_length, fp) != flash_length) {
printf("failed!\n");
fprintf(stderr, "error: could not read entire file");
free(flash_data);
fclose(fp);
exit(1);
}
fclose(fp);
printf("\n");
mpsse = initialize_mpsse();
if (!mpsse)
exit(1);
printf("flashing chip..");
fflush(stdout);
if (set_spartan_program_b(mpsse, 0) != MPSSE_OK)
goto program_b_error;
if (erase_flash(mpsse) != MPSSE_OK)
goto error;
if (program_flash(mpsse, flash_data, flash_length) != MPSSE_OK)
goto error;
if (!skip_validation) {
unsigned char matched;
printf("\nvalidating..");
fflush(stdout);
if (validate_flash(mpsse, flash_data, flash_length,
&matched) != MPSSE_OK)
goto error;
if (!matched) {
printf("failed!\n");
fprintf(stderr, "error: flash mismatch\n");
goto validation_error;
}
}
printf("success!\n");
if (set_spartan_program_b(mpsse, 1) != MPSSE_OK)
goto program_b_error_quiet;
free(flash_data);
Close(mpsse);
return;
error:
printf("failed!\n");
fprintf(stderr, "mpsse error: %s\n", ErrorString(mpsse));
validation_error:
if (set_spartan_program_b(mpsse, 1) != MPSSE_OK)
goto program_b_error_quiet;
free(flash_data);
Close(mpsse);
exit(1);
program_b_error:
printf("failed!\n");
program_b_error_quiet:
fprintf(stderr, "error: unable to change PROGRAM_B pin!\n");
fprintf(stderr, "mpsse error: %s\n", ErrorString(mpsse));
free(flash_data);
Close(mpsse);
exit(1);
}
