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selphy_print/backend_common.h

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/*
* CUPS Backend common code
*
* (c) 2013-2017 Solomon Peachy <pizza@shaftnet.org>
*
* The latest version of this program can be found at:
*
* http://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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* [http://www.gnu.org/licenses/gpl-3.0.html]
*
* SPDX-License-Identifier: GPL-3.0+
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include <libusb.h>
#include <arpa/inet.h>
#ifndef __BACKEND_COMMON_H
#define __BACKEND_COMMON_H
#define STR_LEN_MAX 64
#define STATE( ... ) fprintf(stderr, "STATE: " __VA_ARGS__ )
#define ATTR( ... ) fprintf(stderr, "ATTR: " __VA_ARGS__ )
#define PAGE( ... ) fprintf(stderr, "PAGE: " __VA_ARGS__ )
#define DEBUG( ... ) fprintf(stderr, "DEBUG: " __VA_ARGS__ )
#define DEBUG2( ... ) fprintf(stderr, __VA_ARGS__ )
#define INFO( ... ) fprintf(stderr, "INFO: " __VA_ARGS__ )
#define WARNING( ... ) fprintf(stderr, "WARNING: " __VA_ARGS__ )
#define ERROR( ... ) do { fprintf(stderr, "ERROR: " __VA_ARGS__ ); sleep(1); } while (0)
#if (__BYTE_ORDER == __LITTLE_ENDIAN)
#define le32_to_cpu(__x) __x
#define le16_to_cpu(__x) __x
#define be16_to_cpu(__x) ntohs(__x)
#define be32_to_cpu(__x) ntohl(__x)
#else
#define le32_to_cpu(x) \
({ \
uint32_t __x = (x); \
((uint32_t)( \
(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \
(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \
(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \
})
#define le16_to_cpu(x) \
({ \
uint16_t __x = (x); \
((uint16_t)( \
(((uint16_t)(__x) & (uint16_t)0x00ff) << 8) | \
(((uint16_t)(__x) & (uint16_t)0xff00) >> 8))); \
})
#define be32_to_cpu(__x) __x
#define be16_to_cpu(__x) __x
#endif
#define cpu_to_le16 le16_to_cpu
#define cpu_to_le32 le32_to_cpu
#define cpu_to_be16 be16_to_cpu
#define cpu_to_be32 be32_to_cpu
/* To cheat the compiler */
#define UNUSED(expr) do { (void)(expr); } while (0)
/* To enumerate supported devices */
enum {
P_ANY = 0,
P_ES1,
P_ES2_20,
P_ES3_30,
P_ES40,
P_CP790,
P_CP_XXX,
P_CP10,
P_CP910,
P_KODAK_6800,
P_KODAK_6850,
P_KODAK_1400_805,
P_KODAK_605,
P_KODAK_305,
P_SHINKO_S2145,
P_SHINKO_S1245,
P_SHINKO_S6245,
P_SHINKO_S6145,
P_SHINKO_S6145D,
P_SONY_UPDR150,
P_SONY_UPCR10,
P_MITSU_D70X,
P_MITSU_D80,
P_MITSU_K60,
P_MITSU_9550,
P_MITSU_9550S,
P_MITSU_9600,
P_MITSU_9800,
P_MITSU_9800S,
P_MITSU_9810,
P_MITSU_P93D,
P_MITSU_P95D,
P_DNP_DS40,
P_DNP_DS80,
P_DNP_DS80D,
P_CITIZEN_CW01,
P_DNP_DSRX1,
P_DNP_DS620,
P_DNP_DS820,
P_FUJI_ASK300,
P_MAGICARD,
P_END,
};
struct device_id {
uint16_t vid;
uint16_t pid;
int type; /* P_** */
char *manuf_str;
};
/* Backend Functions */
struct dyesub_backend {
char *name;
char *version;
char *uri_prefix;
void (*cmdline_usage)(void); /* Optional */
void *(*init)(void);
void (*attach)(void *ctx, struct libusb_device_handle *dev,
uint8_t endp_up, uint8_t endp_down, uint8_t jobid);
void (*teardown)(void *ctx);
int (*cmdline_arg)(void *ctx, int argc, char **argv);
int (*read_parse)(void *ctx, int data_fd);
int (*main_loop)(void *ctx, int copies);
int (*query_serno)(struct libusb_device_handle *dev, uint8_t endp_up, uint8_t endp_down, char *buf, int buf_len); /* Optional */
struct device_id devices[];
};
/* Exported functions */
int send_data(struct libusb_device_handle *dev, uint8_t endp,
uint8_t *buf, int len);
int read_data(struct libusb_device_handle *dev, uint8_t endp,
uint8_t *buf, int buflen, int *readlen);
int lookup_printer_type(struct dyesub_backend *backend, uint16_t idVendor, uint16_t idProduct);
void print_license_blurb(void);
void print_help(char *argv0, struct dyesub_backend *backend);
uint16_t uint16_to_packed_bcd(uint16_t val);
uint32_t packed_bcd_to_uint32(char *in, int len);
/* Global data */
extern int terminate;
extern int dyesub_debug;
extern int fast_return;
extern int extra_vid;
extern int extra_pid;
extern int extra_type;
extern int copies;
#if defined(BACKEND)
extern struct dyesub_backend BACKEND;
#endif
/* CUPS compatibility */
#define CUPS_BACKEND_OK 0 /* Success */
#define CUPS_BACKEND_FAILED 1 /* Failed to print use CUPS policy */
#define CUPS_BACKEND_AUTH_REQUIRED 2 /* Auth required */
#define CUPS_BACKEND_HOLD 3 /* Hold this job only */
#define CUPS_BACKEND_STOP 4 /* Stop the entire queue */
#define CUPS_BACKEND_CANCEL 5 /* Cancel print job */
#define CUPS_BACKEND_RETRY 6 /* Retry later */
#define CUPS_BACKEND_RETRY_CURRENT 7 /* Retry immediately */
/* Argument processing */
#define GETOPT_LIST_GLOBAL "d:DfGh"
#define GETOPT_PROCESS_GLOBAL \
case 'd': \
copies = atoi(optarg); \
break; \
case 'D': \
dyesub_debug++; \
break; \
case 'f': \
fast_return++; \
break; \
case 'G': \
print_license_blurb(); \
exit(0); \
case 'h': \
print_help(argv[0], &BACKEND); \
exit(0);
#endif /* __BACKEND_COMMON_H */
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