360 lines
8.2 KiB
C
360 lines
8.2 KiB
C
/*
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* Magicard card printer family CUPS backend -- libusb-1.0 version
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*
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* (c) 2017 Solomon Peachy <pizza@shaftnet.org>
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*
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* The latest version of this program can be found at:
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*
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* http://git.shaftnet.org/cgit/selphy_print.git
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* [http://www.gnu.org/licenses/gpl-3.0.html]
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <signal.h>
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#define BACKEND magicard_backend
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#include "backend_common.h"
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/* Exported */
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#define USB_VID_MAGICARD 0x0C1F
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#define USB_PID_MAGICARD_TANGO2E 0x1800
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/* Private data structure */
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struct magicard_ctx {
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struct libusb_device_handle *dev;
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uint8_t endp_up;
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uint8_t endp_down;
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uint8_t type;
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uint8_t *databuf;
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int datalen;
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};
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struct magicard_cmd_header {
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uint8_t guard[9]; /* 0x05 */
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uint8_t guard2[1]; /* 0x01 */
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uint8_t cmd[4]; /* 'REQ,' */
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uint8_t subcmd[4]; /* '???,' */
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uint8_t arg[4]; /* '???,' */
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uint8_t footer[2]; /* 0x1c 0x03 */
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};
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struct magicard_resp_header {
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uint8_t guard[1]; /* 0x01 */
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uint8_t subcmd_arg[7]; /* '???,???' */
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uint8_t data[0]; /* freeform resp */
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// uint8_t term[2]; /* 0x2c 0x03 terminates! */
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};
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struct magicard_requests {
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char *key;
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char *desc;
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uint8_t type;
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};
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enum {
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TYPE_UNKNOWN = 0,
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TYPE_STRING,
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TYPE_STRINGINT,
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TYPE_IPADDR,
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TYPE_YESNO,
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TYPE_MODEL,
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};
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/* Data definitions */
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static struct magicard_requests magicard_sta_requests[] = {
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{ "MSR", "Serial Number", TYPE_STRING },
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{ "VRS", "Firmware Version", TYPE_STRING },
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{ "FDC", "Head Density", TYPE_STRINGINT },
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{ "FSP", "Image Start", TYPE_STRINGINT },
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{ "FEP", "Image End", TYPE_STRINGINT },
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{ "FPP", "Head Position", TYPE_STRINGINT },
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{ "MDL", "Model", TYPE_MODEL }, /* 0 == Standard. Others? */
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{ "PID", "USB PID", TYPE_STRINGINT },
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{ "MAC", "Ethernet MAC Address", TYPE_STRING },
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{ "DYN", "Dynamic Address", TYPE_YESNO }, /* 1 == yes, 0 == no */
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{ "IPA", "IP Address", TYPE_IPADDR }, /* ASCII signed integer */
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{ "SNM", "IP Netmask", TYPE_IPADDR }, /* ASCII signed integer */
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{ "GWY", "IP Gateway", TYPE_IPADDR }, /* ASCII signed integer */
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{ "TCQ", "Total Prints", TYPE_STRINGINT },
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{ "TCP", "Total Prints on Head", TYPE_STRINGINT },
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{ "TCN", "Total Cleaning Cycles", TYPE_STRINGINT },
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{ "CCQ", "Prints After Last Cleaning", TYPE_STRINGINT },
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{ NULL, NULL, 0 }
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};
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/* Helper functions */
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static int magicard_build_cmd(uint8_t *buf,
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char *cmd, char *subcmd, char *arg)
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{
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struct magicard_cmd_header *hdr = (struct magicard_cmd_header *) buf;
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memset(hdr->guard, 0x05, sizeof(hdr->guard));
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hdr->guard2[0] = 0x01;
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memcpy(hdr->cmd, cmd, 3);
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hdr->cmd[3] = ',';
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memcpy(hdr->subcmd, subcmd, 3);
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hdr->subcmd[3] = ',';
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memcpy(hdr->arg, arg, 3);
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hdr->arg[3] = ',';
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hdr->footer[0] = 0x1c;
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hdr->footer[1] = 0x03;
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return sizeof(*hdr);
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}
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static uint8_t * magicard_parse_resp(uint8_t *buf, uint16_t len, uint16_t *resplen)
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{
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struct magicard_resp_header *hdr = (struct magicard_resp_header *) buf;
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*resplen = len - sizeof(hdr->guard) - sizeof(hdr->subcmd_arg) - 2;
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return hdr->data;
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}
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static int magicard_query_status(struct magicard_ctx *ctx)
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{
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int ret = 0;
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int i;
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uint8_t buf[256];
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for (i = 0 ; ; i++) {
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uint16_t resplen = 0;
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uint8_t *resp;
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int num = 0;
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if (magicard_sta_requests[i].key == NULL)
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break;
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ret = magicard_build_cmd(buf, "REQ", "STA",
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magicard_sta_requests[i].key);
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if ((ret = send_data(ctx->dev, ctx->endp_down,
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buf, ret)))
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return ret;
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memset(buf, 0, sizeof(buf));
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ret = read_data(ctx->dev, ctx->endp_up,
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buf, sizeof(buf), &num);
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if (ret < 0)
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return ret;
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resp = magicard_parse_resp(buf, num, &resplen);
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resp[resplen] = 0;
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switch(magicard_sta_requests[i].type) {
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case TYPE_IPADDR: {
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int32_t ipaddr;
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uint8_t *addr = (uint8_t *) &ipaddr;
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ipaddr = atoi((char*)resp);
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INFO("%s:\t%d.%d.%d.%d\n",
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magicard_sta_requests[i].desc,
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addr[3], addr[2], addr[1], addr[0]);
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break;
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}
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case TYPE_YESNO: {
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int val = atoi((char*)resp);
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INFO("%s:\t%s\n",
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magicard_sta_requests[i].desc,
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val? "Yes" : "No");
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break;
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}
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case TYPE_MODEL: {
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int val = atoi((char*)resp);
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INFO("%s:\t%s\n",
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magicard_sta_requests[i].desc,
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val == 0? "Standard" : "Unknown");
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break;
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}
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case TYPE_STRINGINT:
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// treat differently?
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case TYPE_STRING:
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case TYPE_UNKNOWN:
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default:
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INFO("%s:\t%s\n",
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magicard_sta_requests[i].desc,
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resp);
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}
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}
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return ret;
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}
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/* Main driver */
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static void* magicard_init(void)
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{
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struct magicard_ctx *ctx = malloc(sizeof(struct magicard_ctx));
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if (!ctx) {
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ERROR("Memory Allocation Failure!");
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return NULL;
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}
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memset(ctx, 0, sizeof(struct magicard_ctx));
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return ctx;
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}
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static void magicard_attach(void *vctx, struct libusb_device_handle *dev,
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uint8_t endp_up, uint8_t endp_down, uint8_t jobid)
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{
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struct magicard_ctx *ctx = vctx;
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struct libusb_device *device;
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struct libusb_device_descriptor desc;
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UNUSED(jobid);
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ctx->dev = dev;
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ctx->endp_up = endp_up;
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ctx->endp_down = endp_down;
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device = libusb_get_device(dev);
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libusb_get_device_descriptor(device, &desc);
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ctx->type = lookup_printer_type(&magicard_backend,
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desc.idVendor, desc.idProduct);
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}
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static void magicard_teardown(void *vctx) {
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struct magicard_ctx *ctx = vctx;
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if (!ctx)
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return;
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if (ctx->databuf)
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free(ctx->databuf);
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free(ctx);
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}
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#define MAX_PRINTJOB_LEN 5218176 + 20*1024 /* 1016*642 * 4color * 2sides */
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static int magicard_read_parse(void *vctx, int data_fd) {
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struct magicard_ctx *ctx = vctx;
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int run = 1;
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if (!ctx)
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return CUPS_BACKEND_FAILED;
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if (ctx->databuf) {
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free(ctx->databuf);
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ctx->databuf = NULL;
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}
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ctx->datalen = 0;
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ctx->databuf = malloc(MAX_PRINTJOB_LEN);
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if (!ctx->databuf) {
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ERROR("Memory allocation failure!\n");
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return CUPS_BACKEND_FAILED;
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}
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while(run) {
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// int i;
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// cmd stream is 64 * 0x5a, followed by comma-separated
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// commands. end of command list is 0x1c.
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// then bulk data appended, using lengths specified in
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// SZB, SZG, SZR, SZK.
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// at end, 0x1c.
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// Then one final command: 0x4b, 0x3a, 0x03. 'K:'
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}
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return CUPS_BACKEND_OK;
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}
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static int magicard_main_loop(void *vctx, int copies) {
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struct magicard_ctx *ctx = vctx;
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int ret;
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if (!ctx)
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return CUPS_BACKEND_FAILED;
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top:
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if ((ret = send_data(ctx->dev, ctx->endp_down,
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ctx->databuf, ctx->datalen)))
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return CUPS_BACKEND_FAILED;
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/* Clean up */
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if (terminate)
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copies = 1;
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INFO("Print complete (%d copies remaining)\n", copies - 1);
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if (copies && --copies) {
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goto top;
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}
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return CUPS_BACKEND_OK;
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}
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static void magicard_cmdline(void)
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{
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DEBUG("\t\t[ -s ] # Query status\n");
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}
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static int magicard_cmdline_arg(void *vctx, int argc, char **argv)
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{
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struct magicard_ctx *ctx = vctx;
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int i, j = 0;
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if (!ctx)
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return -1;
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while ((i = getopt(argc, argv, GETOPT_LIST_GLOBAL "s")) >= 0) {
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switch(i) {
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GETOPT_PROCESS_GLOBAL
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case 's':
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j = magicard_query_status(ctx);
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break;
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}
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if (j) return j;
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}
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return 0;
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}
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struct dyesub_backend magicard_backend = {
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.name = "Magicard family",
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.version = "0.01WIP",
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.uri_prefix = "magicard",
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.cmdline_arg = magicard_cmdline_arg,
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.cmdline_usage = magicard_cmdline,
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.init = magicard_init,
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.attach = magicard_attach,
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.teardown = magicard_teardown,
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.read_parse = magicard_read_parse,
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.main_loop = magicard_main_loop,
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.devices = {
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{ USB_VID_MAGICARD, USB_PID_MAGICARD_TANGO2E, P_MAGICARD, ""},
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{ USB_VID_MAGICARD, 0xFFFF, P_MAGICARD, ""},
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{ 0, 0, 0, ""}
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}
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};
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/* Magicard family Spool file format
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*/
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