selphy_print/selphy_print.c

991 lines
27 KiB
C
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/*
* Canon SELPHY ES/CP series print assister -- libusb-1.0 version
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*
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* (c) 2007-2013 Solomon Peachy <pizza@shaftnet.org>
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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/git/gitweb.cgi?p=selphy_print.git
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*
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* 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]
*
*/
#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>
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#include <libusb-1.0/libusb.h>
#define STR_LEN_MAX 64
#define URI_PREFIX "selphy://"
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/* USB Identifiers */
#define USB_VID_CANON 0x04a9
#define USB_PID_CANON_ES1 0x3141
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#define USB_PID_CANON_ES2 0x3185
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#define USB_PID_CANON_ES20 0x3186
#define USB_PID_CANON_ES3 0x31AF
#define USB_PID_CANON_ES30 0x31B0
#define USB_PID_CANON_ES40 0x31EE
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#define USB_PID_CANON_CP10 0x304A
#define USB_PID_CANON_CP100 0x3063
#define USB_PID_CANON_CP200 0x307C
#define USB_PID_CANON_CP220 0x30BD
#define USB_PID_CANON_CP300 0x307D
#define USB_PID_CANON_CP330 0x30BE
#define USB_PID_CANON_CP400 0x30F6
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#define USB_PID_CANON_CP500 0x30F5
#define USB_PID_CANON_CP510 0x3128
#define USB_PID_CANON_CP520 520 // XXX 316f? 3172? (related to cp740/cp750)
#define USB_PID_CANON_CP530 0x31b1
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#define USB_PID_CANON_CP600 0x310B
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#define USB_PID_CANON_CP710 0x3127
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#define USB_PID_CANON_CP720 0x3143
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#define USB_PID_CANON_CP730 0x3142
#define USB_PID_CANON_CP740 0x3171
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#define USB_PID_CANON_CP750 0x3170
#define USB_PID_CANON_CP760 0x31AB
#define USB_PID_CANON_CP770 0x31AA
#define USB_PID_CANON_CP780 0x31DD
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#define USB_PID_CANON_CP790 790 // XXX 31ed? 31ef? (related to es40)
#define USB_PID_CANON_CP800 0x3214
#define USB_PID_CANON_CP810 0x3256
#define USB_PID_CANON_CP900 0x3255
#define VERSION "0.46"
#define DEBUG( ... ) fprintf(stderr, "DEBUG: " __VA_ARGS__ )
#define INFO( ... ) fprintf(stderr, "INFO: " __VA_ARGS__ )
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#define ERROR( ... ) do { fprintf(stderr, "ERROR: " __VA_ARGS__ ); sleep(1); } while (0)
#if (__BYTE_ORDER == __LITTLE_ENDIAN)
#define le32_to_cpu(__x) __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) )); \
})
#endif
#define READBACK_LEN 12
struct printer_data {
int type; /* P_??? */
char *model; /* eg "SELPHY ES1" */
int init_length;
int foot_length;
int16_t init_readback[READBACK_LEN];
int16_t ready_y_readback[READBACK_LEN];
int16_t ready_m_readback[READBACK_LEN];
int16_t ready_c_readback[READBACK_LEN];
int16_t done_c_readback[READBACK_LEN];
int16_t clear_error[READBACK_LEN];
int16_t paper_codes[256];
int16_t pgcode_offset; /* Offset into printjob for paper type */
int16_t paper_code_offset; /* Offset in readback for paper type */
int16_t error_offset;
};
/* printer types */
enum {
P_ES1 = 0,
P_ES2_20,
P_ES3_30,
P_ES40_CP790,
P_CP_XXX,
P_CP10,
P_END
};
struct printer_data printers[P_END] = {
{ .type = P_ES1,
.model = "SELPHY ES1",
.init_length = 12,
.foot_length = 0,
.init_readback = { 0x02, 0x00, 0x00, 0x00, 0x02, 0x01, -1, 0x01, 0x00, 0x00, 0x00, 0x00 },
.ready_y_readback = { 0x04, 0x00, 0x01, 0x00, 0x02, 0x01, -1, 0x01, 0x00, 0x00, 0x00, 0x00 },
.ready_m_readback = { 0x04, 0x00, 0x03, 0x00, 0x02, 0x01, -1, 0x01, 0x00, 0x00, 0x00, 0x00 },
.ready_c_readback = { 0x04, 0x00, 0x07, 0x00, 0x02, 0x01, -1, 0x01, 0x00, 0x00, 0x00, 0x00 },
.done_c_readback = { 0x04, 0x00, 0x00, 0x00, 0x02, 0x01, -1, 0x01, 0x00, 0x00, 0x00, 0x00 },
// .clear_error
// .paper_codes
.pgcode_offset = 3,
.paper_code_offset = 6,
.error_offset = 1,
},
{ .type = P_ES2_20,
.model = "SELPHY ES2/ES20",
.init_length = 16,
.foot_length = 0,
.init_readback = { 0x02, 0x00, 0x00, 0x00, -1, 0x00, -1, -1, 0x00, 0x00, 0x00, 0x00 },
.ready_y_readback = { 0x03, 0x00, 0x01, 0x00, -1, 0x00, -1, -1, 0x00, 0x00, 0x00, 0x00 },
.ready_m_readback = { 0x06, 0x00, 0x03, 0x00, -1, 0x00, -1, -1, 0x00, 0x00, 0x00, 0x00 },
.ready_c_readback = { 0x09, 0x00, 0x07, 0x00, -1, 0x00, -1, -1, 0x00, 0x00, 0x00, 0x00 },
.done_c_readback = { 0x09, 0x00, 0x00, 0x00, -1, 0x00, -1, -1, 0x00, 0x00, 0x00, 0x00 },
// .clear_error
// .paper_codes
.pgcode_offset = 2,
.paper_code_offset = 4,
.error_offset = 1, // XXX insufficient
},
{ .type = P_ES3_30,
.model = "SELPHY ES3/ES30",
.init_length = 16,
.foot_length = 12,
.init_readback = { 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
.ready_y_readback = { 0x01, 0xff, 0x01, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
.ready_m_readback = { 0x03, 0xff, 0x02, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
.ready_c_readback = { 0x05, 0xff, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
.done_c_readback = { 0x00, 0xff, 0x10, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
// .clear_error
// .paper_codes
.pgcode_offset = 2,
.paper_code_offset = -1,
.error_offset = 8, // or 10
},
{ .type = P_ES40_CP790,
.model = "SELPHY ES40/CP790",
.init_length = 16,
.foot_length = 12,
.init_readback = { 0x00, 0x00, -1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_y_readback = { 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_m_readback = { 0x00, 0x03, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_c_readback = { 0x00, 0x05, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1 },
.done_c_readback = { 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1 },
// .clear_error
// .paper_codes
.pgcode_offset = 2,
.paper_code_offset = 11,
.error_offset = 3,
},
{ .type = P_CP_XXX,
.model = "SELPHY CP Series (!CP-10/CP790)",
.init_length = 12,
.foot_length = 0, /* CP900 has four-byte NULL footer that can be safely ignored */
.init_readback = { 0x01, 0x00, 0x00, 0x00, -1, 0x00, -1, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_y_readback = { 0x02, 0x00, 0x00, 0x00, 0x70, 0x00, -1, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_m_readback = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, -1, 0x00, 0x00, 0x00, 0x00, -1 },
.ready_c_readback = { 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, -1, 0x00, 0x00, 0x00, 0x00, -1 },
.done_c_readback = { 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, -1, 0x00, 0x00, 0x00, 0x00, -1 },
.clear_error = { 0x40, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
// .paper_codes
.pgcode_offset = 3,
.paper_code_offset = 6,
.error_offset = 2,
},
{ .type = P_CP10,
.model = "SELPHY CP-10",
.init_length = 12,
.foot_length = 0,
.init_readback = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
.ready_y_readback = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
.ready_m_readback = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
.ready_c_readback = { 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
.done_c_readback = { 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
// .paper_codes
// .clear_error
.pgcode_offset = -1,
.paper_code_offset = -1,
.error_offset = 2,
},
};
#define MAX_HEADER 28
#define BUF_LEN 4096
static const int es40_cp790_plane_lengths[4] = { 2227456, 1601600, 698880, 2976512 };
static void setup_paper_codes(void)
{
/* Default all to IGNORE */
int i, j;
for (i = 0; i < P_END ; i++)
for (j = 0 ; j < 256 ; j++)
printers[i].paper_codes[j] = -1;
/* SELPHY ES1 paper codes */
printers[P_ES1].paper_codes[0x11] = 0x01;
printers[P_ES1].paper_codes[0x12] = 0x02; // ? guess
printers[P_ES1].paper_codes[0x13] = 0x03;
/* SELPHY ES2/20 paper codes */
printers[P_ES2_20].paper_codes[0x01] = 0x01;
printers[P_ES2_20].paper_codes[0x02] = 0x02; // ? guess
printers[P_ES2_20].paper_codes[0x03] = 0x03;
/* SELPHY ES3/30 paper codes -- N/A, printer does not report paper type */
/* SELPHY ES40/CP790 paper codes -- ? guess */
printers[P_ES40_CP790].paper_codes[0x00] = 0x11;
printers[P_ES40_CP790].paper_codes[0x01] = 0x22;
printers[P_ES40_CP790].paper_codes[0x02] = 0x33;
printers[P_ES40_CP790].paper_codes[0x03] = 0x44;
/* SELPHY CP-series (except CP790) paper codes */
printers[P_CP_XXX].paper_codes[0x01] = 0x11;
printers[P_CP_XXX].paper_codes[0x02] = 0x22;
printers[P_CP_XXX].paper_codes[0x03] = 0x33;
printers[P_CP_XXX].paper_codes[0x04] = 0x44;
/* SELPHY CP-10 paper codes -- N/A, only one type */
}
#define INCORRECT_PAPER -999
/* Program states */
enum {
S_IDLE = 0,
S_PRINTER_READY,
S_PRINTER_INIT_SENT,
S_PRINTER_READY_Y,
S_PRINTER_Y_SENT,
S_PRINTER_READY_M,
S_PRINTER_M_SENT,
S_PRINTER_READY_C,
S_PRINTER_C_SENT,
S_PRINTER_DONE,
S_FINISHED,
};
static int fancy_memcmp(const uint8_t *buf_a, const int16_t *buf_b, uint len, int16_t papercode_offset, int16_t papercode_val)
{
int i;
for (i = 0 ; i < len ; i++) {
if (papercode_offset != -1 && i == papercode_offset) {
if (papercode_val == -1)
continue;
else if (buf_a[i] != papercode_val)
return INCORRECT_PAPER;
} else if (buf_b[i] == -1)
continue;
else if (buf_a[i] > buf_b[i])
return 1;
else if (buf_a[i] < buf_b[i])
return -1;
}
return 0;
}
static int parse_printjob(uint8_t *buffer, int *bw_mode, int *plane_len)
{
int printer_type = -1;
if (buffer[0] != 0x40 &&
buffer[1] != 0x00) {
goto done;
}
if (buffer[12] == 0x40 &&
buffer[13] == 0x01) {
*plane_len = *(uint32_t*)(&buffer[16]);
*plane_len = le32_to_cpu(*plane_len);
if (buffer[2] == 0x00) {
if (*plane_len == 688480)
printer_type = P_CP10;
else
printer_type = P_CP_XXX;
} else {
printer_type = P_ES1;
*bw_mode = (buffer[2] == 0x20);
}
goto done;
}
*plane_len = *(uint32_t*)(&buffer[12]);
*plane_len = le32_to_cpu(*plane_len);
if (buffer[16] == 0x40 &&
buffer[17] == 0x01) {
if (buffer[4] == 0x02) {
printer_type = P_ES2_20;
*bw_mode = (buffer[7] == 0x01);
goto done;
}
if (es40_cp790_plane_lengths[buffer[2]] == *plane_len) {
printer_type = P_ES40_CP790;
*bw_mode = (buffer[3] == 0x01);
goto done;
} else {
printer_type = P_ES3_30;
*bw_mode = (buffer[3] == 0x01);
goto done;
}
}
return -1;
done:
return printer_type;
}
static int read_data(int remaining, int present, int data_fd, uint8_t *target,
uint8_t *buf, uint16_t buflen) {
int cnt;
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int wrote = 0;
while (remaining > 0) {
cnt = read(data_fd, buf + present, (remaining < (buflen-present)) ? remaining : (buflen-present));
if (cnt < 0)
return -1;
if (present) {
cnt += present;
present = 0;
}
memcpy(target + wrote, buf, cnt);
wrote += cnt;
remaining -= cnt;
}
return wrote;
}
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#define ID_BUF_SIZE 2048
static char *get_device_id(struct libusb_device_handle *dev)
{
int length;
int claimed = 0;
int iface = 0;
char *buf = malloc(ID_BUF_SIZE + 1);
claimed = libusb_kernel_driver_active(dev, iface);
if (claimed)
libusb_detach_kernel_driver(dev, iface);
libusb_claim_interface(dev, iface);
if (libusb_control_transfer(dev,
LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_ENDPOINT_IN |
LIBUSB_RECIPIENT_INTERFACE,
0, 0,
(iface << 8),
(unsigned char *)buf, ID_BUF_SIZE, 5000) < 0)
{
*buf = '\0';
goto done;
}
/* length is the first two bytes, MSB first */
length = (((unsigned)buf[0] & 255) << 8) |
((unsigned)buf[1] & 255);
/* Sanity checks */
if (length > ID_BUF_SIZE || length < 14)
length = (((unsigned)buf[1] & 255) << 8) |
((unsigned)buf[0] & 255);
if (length > ID_BUF_SIZE)
length = ID_BUF_SIZE;
if (length < 14) {
*buf = '\0';
goto done;
}
/* Move, and terminate */
memmove(buf, buf + 2, length);
buf[length] = '\0';
done:
libusb_release_interface(dev, iface);
if (claimed)
libusb_attach_kernel_driver(dev, iface);
return buf;
}
static int find_and_enumerate(struct libusb_context *ctx,
struct libusb_device ***list,
char *match_serno,
int printer_type,
int scan_only)
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{
int num;
int i;
int found = -1;
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struct libusb_device_handle *dev;
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/* Enumerate and find suitable device */
num = libusb_get_device_list(ctx, list);
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for (i = 0 ; i < num ; i++) {
struct libusb_device_descriptor desc;
unsigned char product[STR_LEN_MAX] = "";
unsigned char serial[STR_LEN_MAX] = "";
unsigned char manuf[STR_LEN_MAX] = "";
int valid = 0;
libusb_get_device_descriptor((*list)[i], &desc);
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if (desc.idVendor != USB_VID_CANON)
continue;
switch(desc.idProduct) {
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case USB_PID_CANON_ES1: // "Canon SELPHY ES1"
if (printer_type == P_ES1)
found = i;
valid = 1;
break;
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case USB_PID_CANON_ES2: // "Canon SELPHY ES2"
case USB_PID_CANON_ES20: // "Canon SELPHY ES20"
if (printer_type == P_ES2_20)
found = i;
valid = 1;
break;
case USB_PID_CANON_ES3: // "Canon SELPHY ES3"
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case USB_PID_CANON_ES30: // "Canon SELPHY ES30"
if (printer_type == P_ES3_30)
found = i;
valid = 1;
break;
case USB_PID_CANON_ES40: // "Canon SELPHY ES40"
case USB_PID_CANON_CP790:
if (printer_type == P_ES40_CP790)
found = i;
valid = 1;
break;
case USB_PID_CANON_CP10: // "Canon CP-10"
if (printer_type == P_CP10)
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found = i;
valid = 1;
break;
case USB_PID_CANON_CP100: // "Canon CP-100"
case USB_PID_CANON_CP200: // "Canon CP-200"
case USB_PID_CANON_CP220: // "Canon CP-220"
case USB_PID_CANON_CP300: // "Canon CP-300"
case USB_PID_CANON_CP330: // "Canon CP-330"
case USB_PID_CANON_CP400: // "Canon SELPHY CP400"
case USB_PID_CANON_CP500: // "Canon SELPHY CP500"
case USB_PID_CANON_CP510: // "Canon SELPHY CP510"
case USB_PID_CANON_CP520: // "Canon SELPHY CP520"
case USB_PID_CANON_CP530: // "Canon SELPHY CP530"
case USB_PID_CANON_CP600: // "Canon SELPHY CP600"
case USB_PID_CANON_CP710: // "Canon SELPHY CP710"
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case USB_PID_CANON_CP720: // "Canon SELPHY CP720"
case USB_PID_CANON_CP730: // "Canon SELPHY CP730"
case USB_PID_CANON_CP740: // "Canon SELPHY CP740"
case USB_PID_CANON_CP750: // "Canon SELPHY CP750"
case USB_PID_CANON_CP760: // "Canon SELPHY CP760"
case USB_PID_CANON_CP770: // "Canon SELPHY CP770"
case USB_PID_CANON_CP780: // "Canon SELPHY CP780"
case USB_PID_CANON_CP800: // "Canon SELPHY CP800"
case USB_PID_CANON_CP810: // "Canon SELPHY CP810"
case USB_PID_CANON_CP900: // "Canon SELPHY CP900"
if (printer_type == P_CP_XXX)
found = i;
valid = 1;
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break;
default:
/* Hook for testing unknown PIDs */
if (getenv("SELPHY_PID") && getenv("SELPHY_TYPE")) {
int pid = strtol(getenv("SELPHY_PID"), NULL, 16);
int type = atoi(getenv("SELPHY_TYPE"));
if (pid == desc.idProduct) {
valid = 1;
if (printer_type == type) {
found = i;
}
}
}
break;
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}
if (libusb_open(((*list)[i]), &dev)) {
ERROR("Could not open device %04x:%04x\n", desc.idVendor, desc.idProduct);
found = -1;
continue;
}
/* Query detailed info */
if (desc.iManufacturer) {
libusb_get_string_descriptor_ascii(dev, desc.iManufacturer, manuf, STR_LEN_MAX);
}
if (desc.iProduct) {
libusb_get_string_descriptor_ascii(dev, desc.iProduct, product, STR_LEN_MAX);
}
if (desc.iSerialNumber) {
libusb_get_string_descriptor_ascii(dev, desc.iSerialNumber, serial, STR_LEN_MAX);
}
if (!strlen((char*)serial))
strcpy((char*)serial, "NONE");
DEBUG("%s%sPID: %04X Product: '%s' Serial: '%s'\n",
(!valid) ? "UNRECOGNIZED: " : "",
(found == i) ? "MATCH: " : "",
desc.idProduct, product, serial);
if (valid && scan_only) {
/* URL-ify model. */
char buf[128]; // XXX ugly..
int j = 0, k = 0;
char *ieee_id;
while (*(product + j + strlen("Canon"))) {
buf[k] = *(product + j + strlen("Canon "));
if(buf[k] == ' ') {
buf[k++] = '%';
buf[k++] = '2';
buf[k] = '0';
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}
k++;
j++;
}
ieee_id = get_device_id(dev);
fprintf(stdout, "direct %sCanon/%s?serial=%s \"%s\" \"%s\" \"%s\" \"\"\n", URI_PREFIX,
buf, serial, product, product,
ieee_id);
if (ieee_id)
free(ieee_id);
}
/* If a serial number was passed down, use it. */
if (found && match_serno &&
strcmp(match_serno, (char*)serial)) {
found = -1;
}
libusb_close(dev);
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}
return found;
}
static int terminate = 0;
void sigterm_handler(int signum) {
terminate = 1;
INFO("Job Cancelled");
}
int main (int argc, char **argv)
{
struct libusb_context *ctx;
struct libusb_device **list;
struct libusb_device_handle *dev;
struct libusb_config_descriptor *config;
uint8_t endp_up = 0;
uint8_t endp_down = 0;
int printer_type = P_END;
int iface = 0;
int num, i;
int ret = 0;
int claimed;
int found = -1;
uint8_t rdbuf[READBACK_LEN], rdbuf2[READBACK_LEN];
int last_state = -1, state = S_IDLE;
int plane_len = 0, header_len = 0, footer_len = 0;
int bw_mode = 0;
int16_t paper_code_offset = -1;
int16_t paper_code = -1;
uint8_t buffer[BUF_LEN];
int data_fd = fileno(stdin);
int copies = 1;
char *uri = getenv("DEVICE_URI");;
char *use_serno = NULL;
uint8_t *plane_y, *plane_m, *plane_c, *footer, *header;
/* Static initialization */
setup_paper_codes();
/* Cmdline help */
if (argc < 2) {
DEBUG("SELPHY ES/CP Print Assist version %s\nUsage:\n\t%s [ infile | - ]\n\t%s job user title num-copies options [ filename ] \n\n",
VERSION,
argv[0], argv[0]);
libusb_init(&ctx);
find_and_enumerate(ctx, &list, NULL, printer_type, 1);
libusb_free_device_list(list, 1);
libusb_exit(ctx);
exit(1);
}
/* Are we running as a CUPS backend? */
if (uri) {
if (argv[4])
copies = atoi(argv[4]);
if (argv[6]) { /* IOW, is it specified? */
data_fd = open(argv[6], O_RDONLY);
if (data_fd < 0) {
perror("ERROR:Can't open input file");
exit(1);
}
}
/* Ensure we're using BLOCKING I/O */
i = fcntl(data_fd, F_GETFL, 0);
if (i < 0) {
perror("ERROR:Can't open input");
exit(1);
}
i &= ~O_NONBLOCK;
i = fcntl(data_fd, F_SETFL, 0);
if (i < 0) {
perror("ERROR:Can't open input");
exit(1);
}
/* Start parsing URI 'selphy://PID/SERIAL' */
if (strncmp(URI_PREFIX, uri, strlen(URI_PREFIX))) {
ERROR("Invalid URI prefix (%s)\n", uri);
exit(1);
}
use_serno = strchr(uri, '=');
if (!use_serno || !*(use_serno+1)) {
ERROR("Invalid URI (%s)\n", uri);
exit(1);
}
use_serno++;
} else {
/* Open Input File */
if (strcmp("-", argv[1])) {
data_fd = open(argv[1], O_RDONLY);
if (data_fd < 0) {
perror("ERROR:Can't open input file");
exit(1);
}
}
}
/* Figure out printer this file is intended for */
read(data_fd, buffer, MAX_HEADER);
printer_type = parse_printjob(buffer, &bw_mode, &plane_len);
if (printer_type < 0) {
ERROR("Unrecognized printjob file format!\n");
exit(1);
}
footer_len = printers[printer_type].foot_length;
header_len = printers[printer_type].init_length;
DEBUG("%sFile intended for a '%s' printer\n", bw_mode? "B/W " : "", printers[printer_type].model);
/* Set up buffers */
plane_y = malloc(plane_len);
plane_m = malloc(plane_len);
plane_c = malloc(plane_len);
header = malloc(header_len);
footer = malloc(footer_len);
if (!plane_y || !plane_m || !plane_c || !header ||
(footer_len && !footer)) {
ERROR("Memory allocation failure!\n");
exit(1);
}
/* Ignore SIGPIPE */
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, sigterm_handler);
/* Read in entire print job */
memcpy(header, buffer, header_len);
memmove(buffer, buffer+header_len,
MAX_HEADER-header_len);
read_data(plane_len, MAX_HEADER-header_len, data_fd, plane_y, buffer, BUF_LEN);
read_data(plane_len, 0, data_fd, plane_m, buffer, BUF_LEN);
read_data(plane_len, 0, data_fd, plane_c, buffer, BUF_LEN);
read_data(footer_len, 0, data_fd, footer, buffer, BUF_LEN);
close(data_fd); /* We're done */
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/* Libusb setup */
libusb_init(&ctx);
found = find_and_enumerate(ctx, &list, use_serno, printer_type, 0);
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/* Compute offsets and other such things */
plane_len += 12; /* Plane header length */
paper_code_offset = printers[printer_type].paper_code_offset;
if (printers[printer_type].pgcode_offset != -1)
paper_code = printers[printer_type].paper_codes[buffer[printers[printer_type].pgcode_offset]];
if (found == -1) {
ERROR("No suitable printers found!\n");
ret = 3;
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goto done;
}
ret = libusb_open(list[found], &dev);
if (ret) {
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ERROR("Printer open failure (Need to be root?) (%d)\n", ret);
ret = 4;
goto done;
}
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claimed = libusb_kernel_driver_active(dev, iface);
if (claimed) {
ret = libusb_detach_kernel_driver(dev, iface);
if (ret) {
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ERROR("Printer open failure (Could not detach printer)\n");
ret = 4;
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goto done_close;
}
}
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ret = libusb_claim_interface(dev, iface);
if (ret) {
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ERROR("Printer open failure (Could not claim printer interface)\n");
ret = 4;
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goto done_close;
}
2012-10-26 22:06:47 -04:00