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selphy_print/kodak6800_print.c

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/*
* Kodak 6800 Photo Printer CUPS backend -- libusb-1.0 version
*
* (c) 2013 Solomon Peachy <pizza@shaftnet.org>
*
* The latest version of this program can be found at:
*
* http://git.shaftnet.org/git/gitweb.cgi?p=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]
*
*/
#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 "backend_common.h"
/* File header */
struct kodak6800_hdr {
uint8_t hdr[9];
uint8_t copies;
uint16_t columns; /* BE */
uint16_t rows; /* BE */
uint8_t media; /* 0x06 for 6x8, 0x00 for 6x4, 0x07 for 5x7 */
uint8_t laminate; /* 0x01 to laminate, 0x00 for not */
uint8_t unk1; /* 0x00, 0x01 [may be print mode] */
} __attribute__((packed));
#define CMDBUF_LEN 17
/* Private data stucture */
struct kodak6800_ctx {
struct libusb_device_handle *dev;
uint8_t endp_up;
uint8_t endp_down;
struct kodak6800_hdr hdr;
uint8_t *databuf;
int datalen;
};
/* Program states */
enum {
S_IDLE = 0,
S_PRINTER_READY_HDR,
S_PRINTER_SENT_HDR,
S_PRINTER_SENT_HDR2,
S_PRINTER_SENT_DATA,
S_FINISHED,
};
#define READBACK_LEN 58
#define UPDATE_SIZE 1536
static int kodak6800_get_tonecurve(struct kodak6800_ctx *ctx, char *fname)
{
libusb_device_handle *dev = ctx->dev;
uint8_t endp_down = ctx->endp_down;
uint8_t endp_up = ctx->endp_up;
uint8_t cmdbuf[16];
uint8_t respbuf[64];
int ret, num = 0;
int i;
uint16_t *data = malloc(UPDATE_SIZE);
INFO("Dump Tone Curve to '%s'\n", fname);
/* Initial Request */
cmdbuf[0] = 0x03;
cmdbuf[1] = 0x1b;
cmdbuf[2] = 0x43;
cmdbuf[3] = 0x48;
cmdbuf[4] = 0x43;
cmdbuf[5] = 0x0c;
cmdbuf[6] = 0x54;
cmdbuf[7] = 0x4f;
cmdbuf[8] = 0x4e;
cmdbuf[9] = 0x45;
cmdbuf[10] = 0x72;
cmdbuf[11] = 0x01;
cmdbuf[12] = 0x00;
cmdbuf[13] = 0x00;
cmdbuf[14] = 0x00;
cmdbuf[15] = 0x00;
if ((ret = send_data(dev, endp_down,
cmdbuf, 16)))
return -1;
ret = libusb_bulk_transfer(dev, endp_up,
respbuf,
sizeof(respbuf),
&num,
5000);
if (ret < 0 || (num != 51)) {
ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, num, (int)sizeof(respbuf), endp_up);
return ret;
}
/* Then we can poll the data */
cmdbuf[0] = 0x03;
cmdbuf[1] = 0x1b;
cmdbuf[2] = 0x43;
cmdbuf[3] = 0x48;
cmdbuf[4] = 0x43;
cmdbuf[5] = 0x0c;
cmdbuf[6] = 0x54;
cmdbuf[7] = 0x4f;
cmdbuf[8] = 0x4e;
cmdbuf[9] = 0x45;
cmdbuf[10] = 0x20;
for (i = 0 ; i < 24 ; i++) {
if ((ret = send_data(dev, endp_down,
cmdbuf, 11)))
return -1;
ret = libusb_bulk_transfer(dev, endp_up,
respbuf,
sizeof(respbuf),
&num,
5000);
if (ret < 0 || (num != 64)) {
ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, num, (int)sizeof(respbuf), endp_up);
return ret;
}
/* Copy into buffer */
memcpy(((uint8_t*)data)+i*64, respbuf, 64);
}
/* Open file and write it out */
{
int tc_fd = open(fname, O_WRONLY|O_CREAT);
if (tc_fd < 0)
return -1;
for (i = 0 ; i < 768; i++) {
/* Byteswap appropriately */
data[i] = cpu_to_be16(le16_to_cpu(data[i]));
write(tc_fd, &data[i], sizeof(uint16_t));
}
close(tc_fd);
}
/* We're done */
free(data);
return 0;
}
static int kodak6800_set_tonecurve(struct kodak6800_ctx *ctx, char *fname)
{
libusb_device_handle *dev = ctx->dev;
uint8_t endp_down = ctx->endp_down;
uint8_t endp_up = ctx->endp_up;
uint8_t cmdbuf[64];
uint8_t respbuf[64];
int ret, num = 0;
int remain;
uint16_t *data = malloc(UPDATE_SIZE);
uint8_t *ptr;
INFO("Set Tone Curve from '%s'\n", fname);
/* Read in file */
int tc_fd = open(fname, O_RDONLY);
if (tc_fd < 0)
return -1;
if (read(tc_fd, data, UPDATE_SIZE) != UPDATE_SIZE)
return -2;
close(tc_fd);
/* Byteswap data to printer's format */
for (ret = 0; ret < (UPDATE_SIZE-16)/2 ; ret++) {
data[ret] = cpu_to_le16(be16_to_cpu(data[ret]));
}
/* Initial Request */
cmdbuf[0] = 0x03;
cmdbuf[1] = 0x1b;
cmdbuf[2] = 0x43;
cmdbuf[3] = 0x48;
cmdbuf[4] = 0x43;
cmdbuf[5] = 0x0c;
cmdbuf[6] = 0x54;
cmdbuf[7] = 0x4f;
cmdbuf[8] = 0x4e;
cmdbuf[9] = 0x45;
cmdbuf[10] = 0x77;
cmdbuf[11] = 0x01;
cmdbuf[12] = 0x00;
cmdbuf[13] = 0x00;
cmdbuf[14] = 0x00;
cmdbuf[15] = 0x00;
if ((ret = send_data(dev, endp_down,
cmdbuf, 16)))
return -1;
ret = libusb_bulk_transfer(dev, endp_up,
respbuf,
sizeof(respbuf),
&num,
5000);
if (ret < 0 || (num != 51)) {
ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, num, (int)sizeof(respbuf), endp_up);
return ret;
}
ptr = (uint8_t*) data;
remain = UPDATE_SIZE;
while (remain > 0) {
int count = remain > 63 ? 63 : remain;
cmdbuf[0] = 0x03;
memcpy(cmdbuf+1, ptr, count);
remain -= count;
ptr += count;
/* Send next block over */
if ((ret = send_data(dev, endp_down,
cmdbuf, count+1)))
return -1;
ret = libusb_bulk_transfer(dev, endp_up,
respbuf,
sizeof(respbuf),
&num,
5000);
if (ret < 0 || (num != 51)) {
ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, num, (int)sizeof(respbuf), endp_up);
return ret;
}
};
/* We're done */
free(data);
return 0;
}
static void kodak6800_cmdline(char *caller)
{
DEBUG("\t\t%s [ -qtc filename | -stc filename ]\n", caller);
}
int kodak6800_cmdline_arg(void *vctx, int run, char *arg1, char *arg2)
{
struct kodak6800_ctx *ctx = vctx;
if (!run || !ctx)
return (!strcmp("-qtc", arg1) ||
!strcmp("-stc", arg1));
if (!strcmp("-qtc", arg1))
return kodak6800_get_tonecurve(ctx, arg2);
if (!strcmp("-stc", arg1))
return kodak6800_set_tonecurve(ctx, arg2);
return -1;
}
static void *kodak6800_init(struct libusb_device_handle *dev,
uint8_t endp_up, uint8_t endp_down, uint8_t jobid)
{
struct kodak6800_ctx *ctx = malloc(sizeof(struct kodak6800_ctx));
if (!ctx)
return NULL;
memset(ctx, 0, sizeof(struct kodak6800_ctx));
ctx->endp_up = endp_up;
ctx->endp_down = endp_down;
return ctx;
}
static void kodak6800_teardown(void *vctx) {
struct kodak6800_ctx *ctx = vctx;
if (!ctx)
return;
if (ctx->databuf)
free(ctx->databuf);
free(ctx);
}
static int kodak6800_read_parse(void *vctx, int data_fd) {
struct kodak6800_ctx *ctx = vctx;
if (!ctx)
return 1;
/* Read in then validate header */
read(data_fd, &ctx->hdr, sizeof(ctx->hdr));
if (ctx->hdr.hdr[0] != 0x03 ||
ctx->hdr.hdr[1] != 0x1b ||
ctx->hdr.hdr[2] != 0x43 ||
ctx->hdr.hdr[3] != 0x48 ||
ctx->hdr.hdr[4] != 0x43) {
ERROR("Unrecognized data format!\n");
return(1);
}
ctx->datalen = be16_to_cpu(ctx->hdr.rows) * be16_to_cpu(ctx->hdr.columns) * 3;
ctx->databuf = malloc(ctx->datalen);
if (!ctx->databuf) {
ERROR("Memory allocation failure!\n");
return 2;
}
{
int remain = ctx->datalen;
uint8_t *ptr = ctx->databuf;
int ret;
do {
ret = read(data_fd, ptr, remain);
if (ret < 0) {
ERROR("Read failed (%d/%d/%d)\n",
ret, remain, ctx->datalen);
perror("ERROR: Read failed");
exit(1);
}
ptr += ret;
remain -= ret;
} while (remain);
}
return 0;
}
static int kodak6800_main_loop(void *vctx, int copies) {
struct kodak6800_ctx *ctx = vctx;
uint8_t rdbuf[READBACK_LEN];
uint8_t rdbuf2[READBACK_LEN];
uint8_t cmdbuf[CMDBUF_LEN];
int last_state = -1, state = S_IDLE;
int i, num, ret;
if (!ctx)
return 1;
top:
if (state != last_state) {
DEBUG("last_state %d new %d\n", last_state, state);
}
/* Send Status Query */
memset(cmdbuf, 0, CMDBUF_LEN);
cmdbuf[0] = 0x03;
cmdbuf[1] = 0x1b;
cmdbuf[2] = 0x43;
cmdbuf[3] = 0x48;
cmdbuf[4] = 0x43;
cmdbuf[5] = 0x03;
if ((ret = send_data(ctx->dev, ctx->endp_down,
cmdbuf, CMDBUF_LEN - 1)))
return ret;
/* Read in the printer status */
memset(rdbuf, 0, READBACK_LEN);
ret = libusb_bulk_transfer(ctx->dev, ctx->endp_up,
rdbuf,
READBACK_LEN,
&num,
5000);
if (ret < 0 || ((num != 51) && (num != 58))) {
ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, num, READBACK_LEN, ctx->endp_up);
ret = 4;
return ret;
}
if (memcmp(rdbuf, rdbuf2, READBACK_LEN)) {
DEBUG("readback: ");
for (i = 0 ; i < num ; i++) {
DEBUG2("%02x ", rdbuf[i]);
}
DEBUG2("\n");
} else if (state == last_state) {
sleep(1);
}
last_state = state;
fflush(stderr);
switch (state) {
case S_IDLE:
INFO("Waiting for printer idle\n");
if (rdbuf[0] != 0x01 ||
rdbuf[1] != 0x02 ||
rdbuf[2] != 0x01) {
break;
}
state = S_PRINTER_READY_HDR;
break;
case S_PRINTER_READY_HDR:
INFO("Printing started; Sending init sequence\n");
/* Send reset/attention */
memset(cmdbuf, 0, CMDBUF_LEN);
cmdbuf[0] = 0x03;
cmdbuf[1] = 0x1b;
cmdbuf[2] = 0x43;
cmdbuf[3] = 0x48;
cmdbuf[4] = 0x43;
cmdbuf[5] = 0x1a;
if ((ret = send_data(ctx->dev, ctx->endp_down,
cmdbuf, CMDBUF_LEN -1)))
return ret;
state = S_PRINTER_SENT_HDR;
break;
case S_PRINTER_SENT_HDR:
INFO("Waiting for printer to acknowledge start\n");
if (rdbuf[0] != 0x01 ||
rdbuf[1] != 0x03 ||
rdbuf[2] != 0x00) {
break;
}
memcpy(cmdbuf, &ctx->hdr, CMDBUF_LEN);
/* If we're printing a 4x6 on 8x6 media... */
if (ctx->hdr.media == 0x00 &&
rdbuf[11] == 0x09 &&
rdbuf[12] == 0x82) {
cmdbuf[14] = 0x06;
cmdbuf[16] = 0x01;
}
INFO("Sending image header\n");
if ((ret = send_data(ctx->dev, ctx->endp_down,
cmdbuf, CMDBUF_LEN)))
return ret;
state = S_PRINTER_SENT_HDR2;
break;
case S_PRINTER_SENT_HDR2:
INFO("Waiting for printer to accept data\n");
if (rdbuf[0] != 0x01 ||
rdbuf[1] != 0x02 ||
rdbuf[2] != 0x01) {
break;
}
INFO("Sending image data\n");
if ((ret = send_data(ctx->dev, ctx->endp_down,
ctx->databuf, ctx->datalen)))
return ret;
INFO("Image data sent\n");
state = S_PRINTER_SENT_DATA;
break;
case S_PRINTER_SENT_DATA:
INFO("Waiting for printer to acknowledge completion\n");
if (rdbuf[0] != 0x01 ||
rdbuf[1] != 0x02 ||
rdbuf[2] != 0x01) {
break;
}
state = S_FINISHED;
break;
default:
break;
};
if (state != S_FINISHED)
goto top;
/* Clean up */
if (terminate)
copies = 1;
INFO("Print complete (%d remaining)\n", copies - 1);
if (copies && --copies) {
state = S_IDLE;
goto top;
}
return 0;
}
/* Exported */
#define USB_VID_KODAK 0x040A
#define USB_PID_KODAK_6800 0x4021
struct dyesub_backend kodak6800_backend = {
.name = "Kodak 6800",
.version = "0.15",
.uri_prefix = "kodak6800",
.cmdline_usage = kodak6800_cmdline,
.cmdline_arg = kodak6800_cmdline_arg,
.init = kodak6800_init,
.teardown = kodak6800_teardown,
.read_parse = kodak6800_read_parse,
.main_loop = kodak6800_main_loop,
.devices = {
{ USB_VID_KODAK, USB_PID_KODAK_6800, P_KODAK_6800, "Kodak"},
{ 0, 0, 0, ""}
}
};
/* Kodak 6800/6850 data format
Spool file consists of 17-byte header followed by plane-interleaved BGR data.
Native printer resolution is 1844 pixels per row, and 1240 or 2434 rows.
6850 Adds support for 5x7, with 1548 pixels per row and 2140 columns.
Header:
03 1b 43 48 43 0a 00 01 00 Fixed header
CC Number of copies
WW WW Number of columns, big endian. (Fixed at 1844 on 6800)
HH HH Number of rows, big endian.
DD 0x00 (4x6) 0x06 (8x6) 0x07 (5x7 on 6850)
LL Laminate, 0x00 (off) or 0x01 (on)
00
************************************************************************
The data format actually sent to the Kodak 6800 is subtly different.
[file header] 03 1b 43 48 43 0a 00 01 00 CC WW WW HH HH MT LL 00
-> 03 1b 43 48 43 03 00 00 00 00 00 00 00 00 00 00 [status query]
<- [51 octets]
01 02 01 00 00 00 00 00 00 00 a2 7b 00 00 a2 7b [ a2 7b may be print counters, increments after each print ]
00 00 02 f4 00 00 e6 b1 00 00 00 1a 00 03 00 e8 [ e6 b1 may be a print counter, increments by 2 after each print ]
00 01 00 83 00 00 00 00 00 00 00 00 00 00 00 00 [ "00" after "83" seems to be a per-powerup print counter, increments by 1 after each "get ready" command ]
00 00 00
-> 03 1b 43 48 43 03 00 00 00 00 00 00 00 00 00 00 [status query]
<- [51 octets -- same as above]
-> 03 1b 43 48 43 1a 00 00 00 00 00 00 00 00 00 00 [get ready]
<- [58 octets]
01 03 00 00 00 00 00 04 06 WW WW MM MM 01 00 00 [MM MM == max printable size of media, 09 82 == 2434 for 6x8!]
00 00 06 WW WW 09 ba 01 02 00 00 00 06 WW WW HH [09 ba == 2940 == cut area?]
HH 01 01 00 00 00 06 WW WW MM MM 01 03 00 00 00
00 00 00 00 00 00 00 00 00 00
-> 03 1b 43 48 43 0a 00 01 00 01 07 34 04 d8 06 01 01 [ image header, modified -- last octet is always 0x01. '06' may be the expected media size in the printer? ]
<- [51 octets]
01 02 01 00 00 00 00 00 00 00 a2 7b 00 00 a2 7b
00 00 02 f4 00 00 e6 b1 00 00 00 1a 00 03 00 e8
00 01 00 83 01 00 00 01 00 00 00 01 00 00 00 00 [ note the "01" after "83", and the extra two "01"s ]
00 00 00
-> [4K of plane data]
-> ...
-> [4K of plane data]
-> [remainder of plane data + 17 bytes of 0xff]
-> 03 1b 43 48 43 03 00 00 00 00 00 00 00 00 00 00 [status query]
<- [51 octets]
01 02 01 00 00 00 00 00 00 00 a2 7b 00 00 a2 7b
00 00 02 f4 00 00 e6 b1 00 00 00 1a 00 03 00 e8
00 01 00 83 01 00 00 01 00 00 00 01 00 00 00 00
00 00 00
-> 03 1b 43 48 43 03 00 00 00 00 00 00 00 00 00 00
<- [51 octets, repeats]
Other stuff seen:
-> 03 1b 43 48 43 12 00 00 00 00 00 00 00 00 00 00
<- [32 octets]
00 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 [[ Pascal string? ]]
20 20 20 20 20 20 20 20 36 30 34 33 4d 32 38 31 [[ ..." 6043M281" ]]
-> 03 1b 43 48 43 0c 54 4f 4e 45 65 00 00 00 00 00
<- [51 octets]
[[ typical status response ]]
[[ Followed by reset. ]]s
Read tone curve data:
-> 03 1b 43 48 43 0c 54 4f 4e 45 72 01 00 00 00 00
<- [51 octets]
[[ typical status response ]]
-> 03 1b 43 48 43 0c 54 4f 4e 45 20
<- [64 octets]
81 01 07 07 27 07 72 07 c8 07 f8 07 22 07 48 08
68 08 88 08 b3 08 db 08 f7 08 09 09 2e 09 49 09
65 09 80 09 aa 09 ca 09 e2 09 fa 09 12 0a 32 0a
42 0a 66 0a 81 0a 9a 0a c3 0a d9 0a ee 0a 04 0b
-> 03 1b 43 48 43 0c 54 4f 4e 45 20
<- [64 octets]
[[ repeats for total of 24 packets. total of 1.5KiB. ]]
Write tone curve data:
-> 03 1b 43 48 43 0c 54 4f 4e 45 77 01 00 00 00 00
<- [51 octets]
[[ typical status response ]]
-> 03 00 00 46 06 53 06 c0 06 07 07 37 07 5d 07 87
07 a1 07 c8 07 08 08 08 08 08 08 48 08 68 08 88
08 a9 08 b9 08 d9 08 f9 08 12 09 2e 09 49 09 70
09 89 08 99 09 ba 09 ca 08 da 09 0a 0a 24 0a 38
<- [51 octets]
[[ typical status response ]]
-> 03 0a 53 0a 66 0a 81 0a ...
....
-> 03 cf 38 0a 39 3d 39 79 39 96 39 b6 39 fb 39 01
34 0a 34 08 3a 0c 1a 10 3a
<- [51 octets]
[[ typical status response ]]
[[ total of 24 packets * 64, and then one final packet of 25: 1562 total. ]]
[[ It apepars the extra 25 bytes are to compensate for the leading '03' on
each of the 25 URBs. ]]
*/
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