Gutenprint + CUPS backends for Dye Sublimation printers
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/*
* Magicard card printer family CUPS backend -- libusb-1.0 version
*
* (c) 2017-2021 Solomon Peachy <pizza@shaftnet.org>
*
* The latest version of this program can be found at:
*
* https://git.shaftnet.org/cgit/selphy_print.git
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0+
*
*/
#define BACKEND magicard_backend
#include "backend_common.h"
#include <time.h>
/* Gamma tables computed with this perl program:
my $input_bpp = 8;
my $output_bpp = 6;
my $gamma = 1/1.8; # or 1/2.2 or whatever.
my $i;
for (my $i = 0 ; $i < (2 ** $input_bpp) ; $i++) {
my $linear = $i / (2 ** $input_bpp);
my $gc = ($linear ** $gamma) * (2 ** $output_bpp);
$gc = int($gc);
print "$gc, ";
}
*/
static uint8_t gammas[2][256] = {
/* Gamma = 2.2 */
{
0, 5, 7, 8, 9, 10, 11, 12, 13, 13, 14, 15, 15, 16, 17,
17, 18, 18, 19, 19, 20, 20, 20, 21, 21, 22, 22, 23, 23, 23,
24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 27, 28, 28, 28,
29, 29, 29, 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32,
33, 33, 33, 33, 34, 34, 34, 34, 35, 35, 35, 35, 35, 36, 36,
36, 36, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 39, 39, 39,
39, 39, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41, 42, 42, 42,
42, 42, 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 45, 45,
45, 45, 45, 45, 46, 46, 46, 46, 46, 46, 47, 47, 47, 47, 47,
47, 48, 48, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49, 50,
50, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 51, 51, 52, 52,
52, 52, 52, 52, 52, 53, 53, 53, 53, 53, 53, 53, 54, 54, 54,
54, 54, 54, 54, 55, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56,
56, 56, 56, 56, 57, 57, 57, 57, 57, 57, 57, 57, 58, 58, 58,
58, 58, 58, 58, 58, 59, 59, 59, 59, 59, 59, 59, 59, 60, 60,
60, 60, 60, 60, 60, 60, 61, 61, 61, 61, 61, 61, 61, 61, 62,
62, 62, 62, 62, 62, 62, 62, 62, 63, 63, 63, 63, 63, 63, 63, 63,
},
/* Gamma = 1.8 */
{
0, 2, 4, 5, 6, 7, 7, 8, 9, 9, 10, 11, 11, 12, 12,
13, 13, 14, 14, 15, 15, 15, 16, 16, 17, 17, 17, 18, 18, 19,
19, 19, 20, 20, 20, 21, 21, 21, 22, 22, 22, 23, 23, 23, 24,
24, 24, 24, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 28, 28,
28, 28, 29, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31, 32,
32, 32, 32, 33, 33, 33, 33, 34, 34, 34, 34, 34, 35, 35, 35,
35, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 38, 38, 38, 38,
39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41,
42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 44, 44, 44, 44,
44, 45, 45, 45, 45, 45, 45, 46, 46, 46, 46, 46, 47, 47, 47,
47, 47, 47, 48, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49,
50, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 51, 52, 52, 52,
52, 52, 52, 53, 53, 53, 53, 53, 53, 54, 54, 54, 54, 54, 54,
55, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56, 56, 56, 57, 57,
57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 58, 59, 59, 59,
59, 59, 59, 60, 60, 60, 60, 60, 60, 60, 61, 61, 61, 61, 61,
61, 61, 62, 62, 62, 62, 62, 62, 62, 63, 63, 63, 63, 63, 63, 63,
}
};
struct magicard_printjob {
struct dyesub_job_common common;
uint8_t *databuf;
int datalen;
int hdr_len;
};
/* Private data structure */
struct magicard_ctx {
struct dyesub_connection *conn;
struct marker marker;
};
struct magicard_cmd_header {
uint8_t guard[9]; /* 0x05 */
uint8_t guard2[1]; /* 0x01 */
uint8_t cmd[4]; /* 'REQ,' */
uint8_t subcmd[4]; /* '???,' */
uint8_t arg[4]; /* '???,' */
uint8_t footer[2]; /* 0x1c 0x03 */
};
struct magicard_cmd_simple_header {
uint8_t guard[9]; /* 0x05 */
uint8_t guard2[1]; /* 0x01 */
uint8_t cmd[]; /* '???' */
// uint8_t footer[2]; /* 0x1c 0x03 */
};
struct magicard_resp_header {
uint8_t guard[1]; /* 0x01 */
uint8_t subcmd_arg[7]; /* '???,???' */
uint8_t data[0]; /* freeform resp */
// uint8_t term[2]; /* 0x2c 0x03 terminates! */
};
struct magicard_requests {
const char *key;
const char *desc;
uint8_t type;
};
enum {
TYPE_UNKNOWN = 0,
TYPE_STRING,
TYPE_STRINGINT,
TYPE_STRINGINT_HEX,
TYPE_IPADDR,
TYPE_YESNO,
TYPE_MODEL,
};
/* Data definitions */
static struct magicard_requests magicard_sta_requests[] = {
{ "MSR", "Printer Serial Number", TYPE_STRING },
{ "PSR", "Print Head Serial Number", TYPE_STRING },
{ "BSR", "PCB Serial Number", TYPE_STRING },
{ "VRS", "Firmware Version", TYPE_STRING },
{ "FDC", "Head Density", TYPE_STRINGINT }, /* 25 per step */
{ "FSP", "Image Start", TYPE_STRINGINT }, /* 8 steps per pixel */
{ "FEP", "Image End", TYPE_STRINGINT }, /* 8 steps per pixel */
{ "FSS", "Ramp Adjust", TYPE_STRINGINT },
{ "FPP", "Head Position", TYPE_STRINGINT }, /* L-R alignment */
{ "MDL", "Model", TYPE_MODEL }, /* 0 == Standard. Others? */
{ "PID", "USB PID", TYPE_STRINGINT_HEX }, /* ASCII integer, but needs to be shown as hex */
{ "VID", "USB VID", TYPE_STRINGINT_HEX }, /* ASCII integer, but needs to be shown as hex */
{ "USN", "USB Serial Number", TYPE_STRING },
{ "UPN", "USB Manufacturer", TYPE_STRING },
{ "MAC", "Ethernet MAC Address", TYPE_STRING },
{ "DYN", "Dynamic Address", TYPE_YESNO }, /* 1 == yes, 0 == no */
{ "IPA", "IP Address", TYPE_IPADDR }, /* ASCII signed integer */
{ "SNM", "IP Netmask", TYPE_IPADDR }, /* ASCII signed integer */
{ "GWY", "IP Gateway", TYPE_IPADDR }, /* ASCII signed integer */
{ "TCQ", "Total Cards Printed", TYPE_STRINGINT },
{ "TCP", "Prints on Head", TYPE_STRINGINT },
{ "TCN", "Cleaning Cycles", TYPE_STRINGINT },
{ "CCQ", "Cards Since Last Cleaning", TYPE_STRINGINT },
{ "TPQ", "Total Panels Printed", TYPE_STRINGINT },
{ "CCP", "Cards between Cleaning Prompts", TYPE_STRINGINT },
{ "CPQ", "Panels Since Last Cleaning", TYPE_STRINGINT },
{ "DFR", "Panels Remaining", TYPE_STRINGINT }, // cook somehow?
{ "CLP", "Cleaning Prompt", TYPE_STRING },
// CRQ: OFF ?? Cleaning overdue?
// CHK: checksum of fw? (8 chars, hex?)
// TES: ??? signed int? IP addr?
// RAMP: ??? hangs.
{ NULL, NULL, 0 }
};
// Sensors: CAM1 CAM2 TACHO FLIP DYE BARCODE LID FRONT REAR BUTTON TEMP ON OFF
// Languages: ENG ITA POR FRA DEU ESP SCH
/* Helper functions */
static int magicard_build_cmd(uint8_t *buf,
const char *cmd, const char *subcmd, const char *arg)
{
struct magicard_cmd_header *hdr = (struct magicard_cmd_header *) buf;
memset(hdr->guard, 0x05, sizeof(hdr->guard));
hdr->guard2[0] = 0x01;
memcpy(hdr->cmd, cmd, 3);
hdr->cmd[3] = ',';
memcpy(hdr->subcmd, subcmd, 3);
hdr->subcmd[3] = ',';
memcpy(hdr->arg, arg, 3);
hdr->arg[3] = ',';
hdr->footer[0] = 0x1c;
hdr->footer[1] = 0x03;
return sizeof(*hdr);
}
static int magicard_build_cmd_simple(uint8_t *buf,
const char *cmd)
{
struct magicard_cmd_simple_header *hdr = (struct magicard_cmd_simple_header *) buf;
int len = strlen(cmd);
memset(hdr->guard, 0x05, sizeof(hdr->guard));
hdr->guard2[0] = 0x01;
strncpy((char*)hdr->cmd, cmd, len);
hdr->cmd[len] = 0x1c;
hdr->cmd[len+1] = 0x03;
return (sizeof(*hdr) + len + 2);
}
static uint8_t * magicard_parse_resp(uint8_t *buf, uint16_t len, uint16_t *resplen)
{
struct magicard_resp_header *hdr = (struct magicard_resp_header *) buf;
*resplen = len - sizeof(hdr->guard) - sizeof(hdr->subcmd_arg) - 2;
return hdr->data;
}
static int magicard_query_sensors(struct magicard_ctx *ctx)
{
int ret = 0;
int i;
uint8_t buf[256];
char buf2[24];
for (i = 1 ; ; i++) {
int num = 0;
snprintf(buf2, sizeof(buf2), "SNR%d", i);
ret = magicard_build_cmd_simple(buf, buf2);
if ((ret = send_data(ctx->conn,
buf, ret)))
return ret;
memset(buf, 0, sizeof(buf));
ret = read_data(ctx->conn,
buf, sizeof(buf), &num);
if (ret < 0)
return ret;
if (!memcmp(buf, "END", 3))
break;
buf[num] = 0;
INFO("%s\n", buf);
}
return CUPS_BACKEND_OK;
}
static int magicard_selftest_card(struct magicard_ctx *ctx)
{
int ret = 0;
uint8_t buf[256];
ret = magicard_build_cmd_simple(buf, "TST,");
ret = send_data(ctx->conn,
buf, ret);
return ret;
}
static int magicard_reset(struct magicard_ctx *ctx)
{
int ret = 0;
uint8_t buf[256];
ret = magicard_build_cmd_simple(buf, "RST,");
ret = send_data(ctx->conn,
buf, ret);
return ret;
}
static int magicard_eject(struct magicard_ctx *ctx)
{
int ret = 0;
uint8_t buf[256];
ret = magicard_build_cmd_simple(buf, "EJT,");
ret = send_data(ctx->conn,
buf, ret);
return ret;
}
static int magicard_query_printer(struct magicard_ctx *ctx)
{
int ret = 0;
int i;
uint8_t buf[256];
char buf2[24];
for (i = 1 ; ; i++) {
int num = 0;
snprintf(buf2, sizeof(buf2), "QPR%d", i);
ret = magicard_build_cmd_simple(buf, buf2);
if ((ret = send_data(ctx->conn,
buf, ret)))
return ret;
memset(buf, 0, sizeof(buf));
ret = read_data(ctx->conn,
buf, sizeof(buf), &num);
if (ret < 0)
return ret;
if (!memcmp(buf, "END", 3))
break;
buf[num] = 0;
INFO("%s\n", buf);
}
return CUPS_BACKEND_OK;
}
static int magicard_query_status(struct magicard_ctx *ctx)
{
int ret = 0;
int i;
uint8_t buf[256];
for (i = 0 ; ; i++) {
uint16_t resplen = 0;
uint8_t *resp;
int num = 0;
if (magicard_sta_requests[i].key == NULL)
break;
ret = magicard_build_cmd(buf, "REQ", "STA",
magicard_sta_requests[i].key);
if ((ret = send_data(ctx->conn,
buf, ret)))
return ret;
memset(buf, 0, sizeof(buf));
ret = read_data(ctx->conn,
buf, sizeof(buf), &num);
if (ret < 0)
return ret;
resp = magicard_parse_resp(buf, num, &resplen);
resp[resplen] = 0;
switch(magicard_sta_requests[i].type) {
case TYPE_IPADDR: {
int32_t ipaddr;
uint8_t *addr = (uint8_t *) &ipaddr;
ipaddr = atoi((char*)resp);
INFO("%s:\t%d.%d.%d.%d\n",
magicard_sta_requests[i].desc,
addr[3], addr[2], addr[1], addr[0]);
break;
}
case TYPE_YESNO: {
int val = atoi((char*)resp);
INFO("%s:\t%s\n",
magicard_sta_requests[i].desc,
val? "Yes" : "No");
break;
}
case TYPE_MODEL: {
int val = atoi((char*)resp);
INFO("%s:\t%s\n",
magicard_sta_requests[i].desc,
val == 0? "Standard" : "Unknown");
break;
}
case TYPE_STRINGINT_HEX: {
int val = atoi((char*)resp);
INFO("%s:\t%X\n",
magicard_sta_requests[i].desc,
val);
break;
}
case TYPE_STRINGINT:
// treat differently?
case TYPE_STRING:
case TYPE_UNKNOWN:
default:
INFO("%s:\t%s\n",
magicard_sta_requests[i].desc,
resp);
}
}
return ret;
}
/* Main driver */
static void* magicard_init(void)
{
struct magicard_ctx *ctx = malloc(sizeof(struct magicard_ctx));
if (!ctx) {
ERROR("Memory Allocation Failure!\n");
return NULL;
}
memset(ctx, 0, sizeof(struct magicard_ctx));
return ctx;
}
static int magicard_attach(void *vctx, struct dyesub_connection *conn, uint8_t jobid)
{
struct magicard_ctx *ctx = vctx;
UNUSED(jobid);
ctx->conn = conn;
ctx->marker.color = "#00FFFF#FF00FF#FFFF00"; // XXX YMCK too!
ctx->marker.name = "Unknown"; // LC1/LC3/LC6/LC8
ctx->marker.numtype = -1;
ctx->marker.levelmax = CUPS_MARKER_UNAVAILABLE;
ctx->marker.levelnow = CUPS_MARKER_UNKNOWN;
return CUPS_BACKEND_OK;
}
static void magicard_cleanup_job(const void *vjob)
{
const struct magicard_printjob *job = vjob;
if (job->databuf)
free(job->databuf);
free((void*)job);
}
static void downscale_and_extract(int gamma, uint32_t pixels,
uint8_t *y_i, uint8_t *m_i, uint8_t *c_i,
uint8_t *y_o, uint8_t *m_o, uint8_t *c_o, uint8_t *k_o)
{
uint32_t i;
for (i = 0 ; i < pixels; i++)
{
uint8_t y, m, c;
uint8_t k = 0;
uint32_t j;
uint32_t row;
uint32_t col;
uint32_t b_offset;
uint8_t b_shift;
/* Downscale color planes from 8bpp -> 6bpp; */
if (gamma) {
if (gamma > 2)
gamma = 2;
gamma--;
y = gammas[gamma][*y_i++];
m = gammas[gamma][*m_i++];
c = gammas[gamma][*c_i++];
} else {
y = *y_i++ >> 2;
m = *m_i++ >> 2;
c = *c_i++ >> 2;
}
/* Extract "true black" from ymc data, if enabled */
if (k_o && y == 0x3f && m == 0x3f && c == 0x3f) {
k = 1;
y = m = c = 0;
}
/* Compute row number and offsets */
row = i / 672;
col = i - (row * 672);
b_offset = col / 8;
b_shift = 7 - (col - (b_offset * 8));
/* Now, for each row, break it down into sub-chunks */
for (j = 0 ; j < 6 ; j++) {
if (b_shift == 7) {
y_o[row * 504 + j * 84 + b_offset] = 0;
m_o[row * 504 + j * 84 + b_offset] = 0;
c_o[row * 504 + j * 84 + b_offset] = 0;
}
if (y & (1 << j))
y_o[row * 504 + j * 84 + b_offset] |= (1 << b_shift);
if (m & (1 << j))
m_o[row * 504 + j * 84 + b_offset] |= (1 << b_shift);
if (c & (1 << j))
c_o[row * 504 + j * 84 + b_offset] |= (1 << b_shift);
}
/* And resin black, if enabled */
if (k_o) {
if (b_shift == 7) {
k_o[row * 84 + b_offset] = 0;
}
if (k)
k_o[row * 84 + b_offset] |= (1 << b_shift);
}
}
}
#define MAX_HEADERS_LEN 2048
#define MAX_PRINTJOB_LEN (1016*672*4) + MAX_HEADERS_LEN /* 1016*672 * 4color */
#define INITIAL_BUF_LEN 1024
static int magicard_read_parse(void *vctx, const void **vjob, int data_fd, int copies) {
struct magicard_ctx *ctx = vctx;
uint8_t initial_buf[INITIAL_BUF_LEN + 1];
uint32_t buf_offset = 0;
int i;
uint8_t *in_y, *in_m, *in_c;
uint8_t *out_y, *out_m, *out_c, *out_k;
uint32_t len_y = 0, len_m = 0, len_c = 0, len_k = 0;
int gamma = 0;
uint8_t x_gp_8bpp;
uint8_t x_gp_rk;
uint8_t k_only;
struct magicard_printjob *job = NULL;
if (!ctx)
return CUPS_BACKEND_FAILED;
job = malloc(sizeof(*job));
if (!job) {
ERROR("Memory allocation failure!\n");
return CUPS_BACKEND_RETRY_CURRENT;
}
memset(job, 0, sizeof(*job));
job->common.jobsize = sizeof(*job);
job->common.copies = copies;
/* Read in the first chunk */
i = read(data_fd, initial_buf, INITIAL_BUF_LEN);
if (i < 0) {
magicard_cleanup_job(job);
return i;
} else if (i == 0) {
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL; /* Ie no data, we're done */
} else if (i < INITIAL_BUF_LEN) {
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
/* Basic Sanity Check */
if (initial_buf[0] != 0x05 ||
initial_buf[64] != 0x01 ||
initial_buf[65] != 0x2c) {
ERROR("Unrecognized header data format @%d!\n", job->datalen);
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
initial_buf[INITIAL_BUF_LEN] = 0;
/* We can start allocating! */
if (job->databuf) {
free(job->databuf);
job->databuf = NULL;
}
job->datalen = 0;
job->databuf = malloc(MAX_PRINTJOB_LEN);
if (!job->databuf) {
ERROR("Memory allocation failure!\n");
magicard_cleanup_job(job);
return CUPS_BACKEND_RETRY_CURRENT;
}
/* Copy over initial header */
memcpy(job->databuf + job->datalen, initial_buf + buf_offset, 65);
job->datalen += 65;
buf_offset += 65;
/* Start parsing headers */
x_gp_8bpp = x_gp_rk = k_only = job->hdr_len = 0;
char *ptr;
ptr = strtok((char*)initial_buf + ++buf_offset, ",\x1c");
while (ptr
&& ((ptr - (char*)initial_buf) < INITIAL_BUF_LEN)
&& ((ptr - (char*)initial_buf) + strnlen(ptr, INITIAL_BUF_LEN) < INITIAL_BUF_LEN)
&& *ptr != 0x1c) {
if (!strcmp("X-GP-8", ptr)) {
x_gp_8bpp = 1;
} else if (!strncmp("TDT", ptr, 3)) {
/* Strip out the timestamp, replace it with one from the backend */
} else if (!strncmp("IMF", ptr,3)) {
/* Strip out the image format, replace it with backend */
// } else if (!strncmp("ESS", ptr, 3)) {
// /* Strip out copies */
} else if (!strcmp("X-GP-RK", ptr)) {
x_gp_rk = 1;
} else if (!strncmp("ICC", ptr,3)) {
/* Gamma curve is not handled by printer,
strip it out and use it! */
gamma = atoi(ptr + 3);
} else if (!strncmp("SZ", ptr, 2)) {
if (ptr[2] == 'B') {
len_y = atoi(ptr + 3);
} else if (ptr[2] == 'G') {
len_m = atoi(ptr + 3);
} else if (ptr[2] == 'R') {
len_c = atoi(ptr + 3);
} else if (ptr[2] == 'K') {
len_k = atoi(ptr + 3);
}
} else {
/* Safety valve */
if (strlen(ptr) + job->datalen > MAX_HEADERS_LEN) {
ERROR("headers too long, bogus job!\n");
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
/* Everything else goes in */
job->datalen += sprintf((char*)job->databuf + job->datalen, ",%s", ptr);
}
/* Keep going */
buf_offset += strlen(ptr) + 1;
/* Peek ahead to see if this is it */
if (initial_buf[buf_offset + 1] == 0x1c)
break;
/* Otherwise continue to the next token */
ptr = strtok(NULL, ",\x1c");
}
/* Sanity checks */
if (!len_y || !len_m || !len_c) {
ERROR("Plane lengths missing? %u/%u/%u!\n", len_y, len_m, len_c);
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
if (len_y != len_m || len_y != len_c) {
ERROR("Inconsistent data plane lengths! %u/%u/%u!\n", len_y, len_m, len_c);
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
if (x_gp_rk && len_k) {
ERROR("Data stream already has a K layer!\n");
magicard_cleanup_job(job);
return CUPS_BACKEND_CANCEL;
}
/* Generate a timestamp */
job->datalen += sprintf((char*)job->databuf + job->datalen, ",TDT%08X", (uint32_t) time(NULL));
/* Generate image format tag */
if (k_only == 1) {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",IMFK");
} else if (x_gp_rk || len_k) {
/* We're adding K, so make this BGRK */
job->datalen += sprintf((char*)job->databuf + job->datalen, ",IMFBGRK");
} else {
/* Just BGR */
job->datalen += sprintf((char*)job->databuf + job->datalen, ",IMFBGR");
}
/* Insert SZB/G/R/K length descriptors */
if (x_gp_8bpp) {
if (k_only == 1) {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZK%u", len_c / 8);
} else {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZB%u", len_y * 6 / 8);
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZG%u", len_m * 6 / 8);
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZR%u", len_c * 6 / 8);
/* Add in a SZK length indication if requested */
if (x_gp_rk == 1) {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZK%u", len_c / 8);
}
}
} else {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZB%u", len_y);
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZG%u", len_m);
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZR%u", len_c);
/* Add in a SZK length indication if requested */
if (len_k) {
job->datalen += sprintf((char*)job->databuf + job->datalen, ",SZK%u", len_k);
}
}
/* Terminate command stream */
job->databuf[job->datalen++] = 0x1c;
/* Let's figure out how long the image data stream is supposed to be. */
uint32_t remain;
if (k_only) {
remain = len_k + 3;
} else {
remain = len_y + len_m + len_c + 3 * 3;
if (len_k)
remain += len_k + 3;
}
/* Offset the stuff we already read in. */
remain -= INITIAL_BUF_LEN - buf_offset;
remain++; /* Add in a byte for the end of job marker. This is our final value. */
/* This is how much of the initial buffer is the header length. */
job->hdr_len = job->datalen;
if (x_gp_8bpp) {
uint32_t srcbuf_offset = INITIAL_BUF_LEN - buf_offset;
uint8_t *srcbuf = malloc(MAX_PRINTJOB_LEN);
if (!srcbuf) {
magicard_cleanup_job(job);
ERROR("Memory allocation failure!\n");
return CUPS_BACKEND_RETRY_CURRENT;
}
memcpy(srcbuf, initial_buf + buf_offset, srcbuf_offset);
/* Finish loading the data */
while (remain > 0) {
i = read(data_fd, srcbuf + srcbuf_offset, remain);
if (i < 0) {
ERROR("Data Read Error: %d (%u) @%u)\n", i, remain, srcbuf_offset);
magicard_cleanup_job(job);
free(srcbuf);
return i;
}
if (i == 0) {
ERROR("Short read! (%d/%u)\n", i, remain);
magicard_cleanup_job(job);
free(srcbuf);
return CUPS_BACKEND_CANCEL;
}
srcbuf_offset += i;
remain -= i;
}
// XXX handle conversion of K-only jobs. if needed.
/* set up source pointers */
in_y = srcbuf;
in_m = in_y + len_y + 3;
in_c = in_m + len_m + 3;
/* Set up destination pointers */
out_y = job->databuf + job->datalen;
out_m = out_y + (len_y * 6 / 8) + 3;
out_c = out_m + (len_m * 6 / 8) + 3;
out_k = out_c + (len_c * 6 / 8) + 3;
/* Termination of each plane */
memcpy(out_m - 3, in_y + len_y, 3);
memcpy(out_c - 3, in_m + len_m, 3);
memcpy(out_k - 3, in_c + len_c, 3);
if (!x_gp_rk)
out_k = NULL;
INFO("Converting image data to printer's native format %s\n", x_gp_rk ? "and extracting K channel" : "");
downscale_and_extract(gamma, len_y, in_y, in_m, in_c,
out_y, out_m, out_c, out_k);
/* Pad out the length appropriately. */
job->datalen += ((len_c * 6 / 8) + 3) * 3;
/* If there's a K plane, compute length.. */
if (out_k) {
job->datalen += (len_c / 8);
job->databuf[job->datalen++] = 0x1c;
job->databuf[job->datalen++] = 0x4b;
job->databuf[job->datalen++] = 0x3a;
}
/* Terminate the entire stream */
job->databuf[job->datalen++] = 0x03;
free(srcbuf);
} else {
uint32_t srcbuf_offset = INITIAL_BUF_LEN - buf_offset;
memcpy(job->databuf + job->datalen, initial_buf + buf_offset, srcbuf_offset);
job->datalen += srcbuf_offset;
/* Finish loading the data */
while (remain > 0) {
i = read(data_fd, job->databuf + job->datalen, remain);
if (i < 0) {
ERROR("Data Read Error: %d (%u) @%d)\n", i, remain, job->datalen);
magicard_cleanup_job(job);
return i;
}
if (i == 0) {
magicard_cleanup_job(job);
ERROR("Short read! (%d/%u)\n", i, remain);
return CUPS_BACKEND_CANCEL;
}
job->datalen += i;
remain -= i;
}
}
*vjob = job;
return CUPS_BACKEND_OK;
}
static int magicard_main_loop(void *vctx, const void *vjob, int wait_for_return) {
struct magicard_ctx *ctx = vctx;
int ret;
int copies;
(void)wait_for_return;
const struct magicard_printjob *job = vjob;
// XXX printer handles copy generation..
// but it's a numeric parameter. Bleh.
if (!ctx)
return CUPS_BACKEND_FAILED;
if (!job)
return CUPS_BACKEND_FAILED;
copies = job->common.copies;
top:
if ((ret = send_data(ctx->conn,
job->databuf, job->hdr_len)))
return CUPS_BACKEND_FAILED;
if ((ret = send_data(ctx->conn,
job->databuf + job->hdr_len, job->datalen - job->hdr_len)))
return CUPS_BACKEND_FAILED;
/* Clean up */
if (terminate)
copies = 1;
INFO("Print complete (%d copies remaining)\n", copies - 1);
if (copies && --copies) {
goto top;
}
return CUPS_BACKEND_OK;
}
static void magicard_cmdline(void)
{
DEBUG("\t\t[ -s ] # Query status\n");
DEBUG("\t\t[ -q ] # Query information\n");
DEBUG("\t\t[ -I ] # Query printer sensors\n");
DEBUG("\t\t[ -E ] # Eject card\n");
DEBUG("\t\t[ -T ] # Print self-test card\n");
DEBUG("\t\t[ -R ] # Reset printer\n");
}
static int magicard_cmdline_arg(void *vctx, int argc, char **argv)
{
struct magicard_ctx *ctx = vctx;
int i, j = 0;
if (!ctx)
return -1;
while ((i = getopt(argc, argv, GETOPT_LIST_GLOBAL "sqEIRT")) >= 0) {
switch(i) {
GETOPT_PROCESS_GLOBAL
case 's':
j = magicard_query_status(ctx);
break;
case 'q':
j = magicard_query_printer(ctx);
break;
case 'E':
j = magicard_eject(ctx);
break;
case 'I':
j = magicard_query_sensors(ctx);
break;
case 'R':
j = magicard_reset(ctx);
break;
case 'T':
j = magicard_selftest_card(ctx);
break;
}
if (j) return j;
}
return CUPS_BACKEND_OK;
}
static int magicard_query_markers(void *vctx, struct marker **markers, int *count)
{
struct magicard_ctx *ctx = vctx;
*markers = &ctx->marker;
*count = 1;
return CUPS_BACKEND_OK;
}
static const char *magicard_prefixes[] = {
"magicard", // Family name
// backwards compatibility
"tango2e", "enduro", "enduroplus",
NULL
};
const struct dyesub_backend magicard_backend = {
.name = "Magicard family",
.version = "0.18",
.uri_prefixes = magicard_prefixes,
.cmdline_arg = magicard_cmdline_arg,
.cmdline_usage = magicard_cmdline,
.init = magicard_init,
.attach = magicard_attach,
.cleanup_job = magicard_cleanup_job,
.read_parse = magicard_read_parse,
.main_loop = magicard_main_loop,
.query_markers = magicard_query_markers,
.devices = {
{ 0x0c1f, 0x1800, P_MAGICARD, NULL, "magicard-tango2e"},
// { 0x0c1f, 0x1800, P_MAGICARD, NULL, "magicard-rio2e"},
{ 0x0c1f, 0x4800, P_MAGICARD, NULL, "magicard-enduro"}, // ??
{ 0x0c1f, 0x880a, P_MAGICARD, NULL, "magicard-enduroplus"}, // ??
{ 0x0c1f, 0xFFFF, P_MAGICARD, NULL, "magicard"},
{ 0, 0, 0, NULL, NULL}
}
};
/* Magicard family Spool file format (Tango2e/Rio2e/AvalonE family)
This one was rather fun to figure out.
* Job starts with a sequence of 64 '0x05'
* Command sequence starts with 0x01
* Commands are textual and comma-separated.
* Most are passed through ignored, except for:
* SZB, SZG, SZR, SZK -- indicate length of respective data plane
* IMF -- Image format (BGR/BGRK/K)
* X-GP-8 -- Tells backend to convert from Gutenprint's 8bpp data
* X-GP-RK -- Tells backend to extract K channel from color data
* Command sequence ends with 0x1c
* Image plane data follows, in the order of the SZ# entries
* Plane lengths are specified by the SZ# entry.
* Color planes are actually Y/M/C rather than B/G/R!
* Each plane terminates with 0x1c __ 0x3a, where __ is 0x42, 0x47, 0x52,
and 0x4b for B/G/R/K respectively. Terminator is _not_ part of length.
* Image data is 6bpp for B/G/R and 1bpp for K, 672*1016 pixels
* Organized in a series of 84-byte rows.
* Byte data is LSB first.
* Each row is a single stripe of a single bit of a pixel, so
color data is b0b0b0b0.. b1b1b1b1.. .. b5b5b5b5.
* Job ends with 0x03
** ** ** ** ** **
Firmware updates:
0x05 (x9) 0x01 REQ,FRM###### 0x1c
Where ###### is the length of the firmware image.
Then send over 64 bytes at a time until it's done.
Then send 0x03 to mark end of job.
Follow it with:
0x01 STA,CHK########, 0x03 (8-digit checksum?)
0x05 (x9) 0x01 REQ,UPG, 0x1c 0x03
** ** ** ** ** **
Known commands seen in print jobs:
BAC%s Backside format (CKO, KO, C, CO, K) -- Only used with Duplex.
CKI%s Custom Holokote (ON or OFF)
CPW%s Color power level (0-100, default 50)
DPX%s Duplex (ON or OFF)
EOI%d Card alignment end (0-100, default 50)
ESS%d Number of copies (1-?)
HGT%d Image Height (always seems to be 1016)
HKM%06X Holokote hole. bitwise number, each bit corresponds to an area.
HKT%d Holokote type (1 is "ultra secure, 2 is "interlocking rings", etc)
HPH%s Holopatch (ON or OFF)
IMF%s Image Data Format (BGR, BGRK, K)
KPW%s Black power level (0-100, default 50)
LAN%s Printer display lanaguage (ENG, ITA, POR, FRA, DEU, ESP, SCH)
LC%d Force media type (LC1, LC3, LC6, LC8 for YMCKO/MONO/KO/YMCKOK)
NCT%d,%d,%d,%d Overcoat hole
OPW%s Overcoat power level (0-100, default 50)
OVR%s Overcoat (ON or OFF)
PAG%d Page number (always 1, except 2 if printing duplex backside)
PAT%d Holopatch area (0-24)
REJ%s Reject faulty cards (ON or OFF)
SOI%d Card alignment start (0-100, default 50)
SLW%s Colorsure (ON or OFF)
SZB%d Blue data length
SZG%d Green data length
SZK%d Black data length
SZR%d Red data length
TDT%08X Driver-supplied timestamp of print job.
USF%s Holokote (ON or OFF)
VER%s Inform the printer of the driver version (seems to be ignored)
WID%d Image Width (always seems to be 642)
Mag-stripe encoding:
MAG%d Magstripe position (1, 2, or 3)
BPI%d Bits per Inch (75 or 210)
MPC%d Character encoding (5 or 7)
COE%s 'H'igh or 'L'ow coercivity
Unknown commands seen in print jobs:
DDD%s ? (only seen '50') -- Could it be K alignment?
KEE ?
NNN%s ? (Seen 'OFF')
NOC%d ? (Seen '1') (Seems to start a job)
PCT%d,%d,%d,%d ? Print area, seems fixed @ 0,0, 1025, 641)
RT2 ?
TRO%d ? (Seen '0', appears with Holokote)
XCO%d ? X start offset (always seems to be 0)
YCO%d ? Y start offset (always seems to be 0)
Unknown commands: (Seen in firmware guts)
AAA
AMS
BBB%d Numeric parameter
CLR
FBF
FTC
HFD%s String parameter
IPM
KKK
LBL
LLL
LRC
MGV%s "ON" or "OFF" but no idea
MMM
PAR
RDM
SNR
SSP
Unknown commands unique to Tango +L (ie w/ Laminator support)
FRN
LAM
LAM_DLY
LAM_SPD
LAM_LEN
LAM_END
LAM_STA
LAM_DEG
LAM_FLM
LAM_KBD
LAM_MOD
Commands consumed by backend:
ICC%d Gamma curve (0, 1, 2) -- off, 2.2, or 1.8 respectively.
X-GP-8 Raw data is 8bpp. needs to be converted.
X-GP-RK Extract K channel from color data.
Open questions:
* How to query/read magstripe
* How to set IP address (etc)
* How to set other parameters
"Simple Commands" (REQ,....,)
RST Reset printer
TST Generate self-test page
EJT Eject card
Other "Simple commands" referenced in Rio Pro/Enduro+ docs
DEALERSERVICE%s ON/OFF (enter/exit dealer service mode)
CAM Reset print head cam position
CHP%s UP/DOWN Feed card into smart encoder
CLN Cleaning cycle
DYE Re-init dye film
ENC Test encoding cycle
FEED%d 0/1,+ 0/1, load card into standby, >1 feed N cards.
FLIP Flip card in printer
FRN%s ON/OFF -- Film saving
HEAD%s UP/DOWN -- Raise or lower print head.
RAMP%d 0-100 Density ramp, 50 default
SET Saves settings into NVDATA
STN Re-init Holokote
SNS Soak cycle, test all sensors
SHW%s CAM, TACHO, FLIP, DYE, LID, FRONT, MID, READ, BUTTON1, BUTTON2,
SMART, TEMP, ON, OFF
LNG%d 0/1/2/3/4/5 == ENG/POR/FRE/GER/SPA/ITA
RUN%s CAM, FEED, DYE, MAIN, FLIPPER, FLIPROLL, FAN, PANEL, POUT, CAL, LCD,
OFF
FLM%s Y/M/C/K/O Align ribbon at corresponding panel
FCL Init dye calibration routine
FCL###### Set dye color to ###### (RGB hex)
*/