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kodak6800: 75% of new backend migration completed. Main loop is all that's left.

master
Solomon Peachy 2013-07-18 18:03:40 -04:00
parent a3d60820b9
commit b038aa71c1
5 changed files with 367 additions and 434 deletions
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1
.gitignore vendored
View File

@ -1,3 +1,4 @@
*~
sonyupdr150
kodak6800
gutenprint

25
Makefile
View File

@ -2,28 +2,21 @@ CFLAGS = -Wall
LDFLAGS = -lusb-1.0
CUPS_BACKEND_DIR = /usr/lib/cups/backend
DEPS = backend_common.c backend_common.h
DEPS = backend_common.h
SOURCES = sony_updr150_print.c kodak6800_print.c backend_common.c
all: gutenprint sonyupdr150
all: gutenprint sonyupdr150 kodak6800
gutenprint: sony_updr150_print.c $(DEPS)
gcc -o $@ $< backend_common.c $(LDFLAGS) $(CFLAGS)
canon-selphy_print: selphy_print.c $(DEPS)
gcc -o $@ $< $(LDFLAGS) $(CFLAGS)
kodak-6800_print: kodak6800_print.c $(DEPS)
gcc -o $@ $< $(LDFLAGS) $(CFLAGS)
kodak-1400_print: kodak1400_print.c $(DEPS)
gcc -o $@ $< $(LDFLAGS) $(CFLAGS)
shinko-s2145_print: shinko_s2145_print.c $(DEPS)
gcc -o $@ $< $(LDFLAGS) $(CFLAGS)
gutenprint: $(SOURCES) $(DEPS)
gcc -o $@ $(SOURCES) $(LDFLAGS) $(CFLAGS)
sonyupdr150:
ln -s gutenprint $@
kodak6800:
ln -s gutenprint $@
install:
install -o root -m 700 gutenprint $(CUPS_BACKEND_DIR)/gutenprint+usb

19
backend_common.c
View File

@ -27,7 +27,7 @@
#include "backend_common.h"
#define BACKEND_VERSION "0.7"
#define BACKEND_VERSION "0.08"
#ifndef URI_PREFIX
#define URI_PREFIX "gutenprint+usb"
#endif
@ -346,6 +346,7 @@ static int find_and_enumerate(struct libusb_context *ctx,
static struct dyesub_backend *backends[] = {
&updr150_backend,
&kodak6800_backend,
NULL,
};
@ -393,6 +394,7 @@ int main (int argc, char **argv)
int copies = 1;
char *uri = getenv("DEVICE_URI");
char *use_serno = NULL;
int query_only = 0;
DEBUG("Multi-Call Gutenprint DyeSub CUPS Backend version %s\n",
BACKEND_VERSION);
@ -412,14 +414,14 @@ int main (int argc, char **argv)
if (!backend) {
DEBUG("CUPS Usage:\n\tDEVICE_URI=someuri %s job user title num-copies options [ filename ]\n\n",
URI_PREFIX);
DEBUG("Internal Backends:\n");
DEBUG("Internal Backends: (prefix with SERIAL=serno for specific device)\n");
for (i = 0; ; i++) {
backend = backends[i];
if (!backend)
break;
DEBUG(" %s backend version %s (BACKEND=%s)\n",
backend->name, backend->version, backend->uri_prefix);
DEBUG(" Standalone Usage: (prefix with SERIAL=serno for specific device)\n");
DEBUG(" Standalone Usage:\n");
DEBUG("\t\t%s [ infile | - ]\n",
backend->uri_prefix);
@ -510,6 +512,10 @@ int main (int argc, char **argv)
exit(1);
}
if (backend->cmdline_arg(NULL, 0, argv[1], argv[2])) {
query_only = 1;
}
/* Open Input File */
if (strcmp("-", argv[1])) {
data_fd = open(argv[1], O_RDONLY);
@ -576,11 +582,16 @@ int main (int argc, char **argv)
/* Initialize backend */
backend_ctx = backend->init(dev, endp_up, endp_down);
if (query_only) {
backend->cmdline_arg(backend_ctx, 1, argv[1], argv[2]);
goto done_claimed;
}
/* Read in data */
if (backend->read_parse(backend_ctx, data_fd))
exit(1);
close(data_fd);
/* Time for the main processing loop */

6
backend_common.h
View File

@ -87,13 +87,10 @@ struct dyesub_backend {
void *(*init)(struct libusb_device_handle *dev,
uint8_t endp_up, uint8_t endp_down);
void (*teardown)(void *ctx);
int (*cmdline_arg)(void *ctx, int run, char *arg1, char *arg2);
int (*read_parse)(void *ctx, int data_fd);
int (*main_loop)(void *ctx, int copies);
};
/* XXX
- Cmdline Args Present
- Cmdline Arg Handling
*/
/* To enumerate supported devices */
enum {
@ -127,5 +124,6 @@ extern int terminate;
/* External data */
extern struct dyesub_backend updr150_backend;
extern struct dyesub_backend kodak6800_backend;
#endif /* __BACKEND_COMMON_H */

750
kodak6800_print.c
View File

@ -35,224 +35,9 @@
#include <fcntl.h>
#include <signal.h>
#define VERSION "0.14"
#define URI_PREFIX "kodak6800://"
#define STR_LEN_MAX 64
#include "backend_common.c"
/* Program states */
enum {
S_IDLE = 0,
S_PRINTER_READY_HDR,
S_PRINTER_SENT_HDR,
S_PRINTER_SENT_HDR2,
S_PRINTER_SENT_DATA,
S_FINISHED,
};
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
#define READBACK_LEN 58
#define UPDATE_SIZE 1536
static int get_tonecurve(char *fname, libusb_device_handle *dev,
uint8_t endp_down, uint8_t 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 set_tonecurve(char *fname, libusb_device_handle *dev,
uint8_t endp_down, uint8_t 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;
}
#include "backend_common.h"
#if 0
int main (int argc, char **argv)
{
struct libusb_context *ctx;
@ -268,7 +53,6 @@ int main (int argc, char **argv)
int i, num;
int claimed;
int query_only = 0;
int ret = 0;
int iface = 0;
int found = -1;
@ -276,182 +60,10 @@ int main (int argc, char **argv)
char *uri = getenv("DEVICE_URI");;
char *use_serno = NULL;
struct kodak6800_hdr hdr;
uint8_t *planedata, *cmdbuf;
uint32_t datasize;
uint8_t rdbuf[READBACK_LEN];
uint8_t rdbuf2[READBACK_LEN];
int last_state = -1, state = S_IDLE;
DEBUG("Kodak 6800 CUPS backend version " VERSION "/" BACKEND_VERSION " \n");
/* Cmdline help */
if (argc < 2) {
DEBUG("Usage:\n\t%s [ infile | - ]\n\t%s job user title num-copies options [ filename ]\n\t%s [ -qtc filename | -stc filename ] \n\n",
argv[0], argv[0], argv[0]);
libusb_init(&ctx);
find_and_enumerate(ctx, &list, NULL, P_KODAK_6800, 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 {
use_serno = getenv("DEVICE");
if (!strcmp("-qtc", argv[1]) ||
!strcmp("-stc", argv[1])) {
query_only = 1;
goto skip_read;
}
/* 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);
}
}
}
/* Ignore SIGPIPE */
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, sigterm_handler);
/* Read in then validate header */
read(data_fd, &hdr, sizeof(hdr));
if (hdr.hdr[0] != 0x03 ||
hdr.hdr[1] != 0x1b ||
hdr.hdr[2] != 0x43 ||
hdr.hdr[3] != 0x48 ||
hdr.hdr[4] != 0x43) {
ERROR("Unrecognized data format!\n");
exit(1);
}
/* Read in image data */
cmdbuf = malloc(CMDBUF_LEN);
datasize = be16_to_cpu(hdr.rows) * be16_to_cpu(hdr.columns) * 3;
planedata = malloc(datasize);
if (!cmdbuf || !planedata) {
ERROR("Memory allocation failure!\n");
exit(1);
}
{
int remain;
uint8_t *ptr = planedata;
remain = datasize;
do {
ret = read(data_fd, ptr, remain);
if (ret < 0) {
ERROR("Read failed (%d/%d/%d)\n",
ret, remain, datasize);
perror("ERROR: Read failed");
exit(1);
}
ptr += ret;
remain -= ret;
} while (remain);
}
close(data_fd); /* We're done reading! */
skip_read:
/* Libusb setup */
libusb_init(&ctx);
found = find_and_enumerate(ctx, &list, use_serno, P_KODAK_6800, 0);
if (found == -1) {
ERROR("Printer open failure (No suitable printers found!)\n");
ret = 3;
goto done;
}
ret = libusb_open(list[found], &dev);
if (ret) {
ERROR("Printer open failure (Need to be root?) (%d)\n", ret);
ret = 4;
goto done;
}
claimed = libusb_kernel_driver_active(dev, iface);
if (claimed) {
ret = libusb_detach_kernel_driver(dev, iface);
if (ret) {
ERROR("Printer open failure (Could not detach printer from kernel)\n");
ret = 4;
goto done_close;
}
}
ret = libusb_claim_interface(dev, iface);
if (ret) {
ERROR("Printer open failure (Could not claim printer interface)\n");
ret = 4;
goto done_close;
}
ret = libusb_get_active_config_descriptor(list[found], &config);
if (ret) {
ERROR("Printer open failure (Could not fetch config descriptor)\n");
ret = 4;
goto done_close;
}
for (i = 0 ; i < config->interface[0].altsetting[0].bNumEndpoints ; i++) {
if ((config->interface[0].altsetting[0].endpoint[i].bmAttributes & 3) == LIBUSB_TRANSFER_TYPE_BULK) {
if (config->interface[0].altsetting[0].endpoint[i].bEndpointAddress & LIBUSB_ENDPOINT_IN)
endp_up = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
else
endp_down = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
}
}
if (query_only) {
if (!strcmp("-qtc", argv[1]))
get_tonecurve(argv[2], dev, endp_down, endp_up);
if (!strcmp("-stc", argv[1]))
set_tonecurve(argv[2], dev, endp_down, endp_up);
goto done_claimed;
}
/* Time for the main processing loop */
top:
@ -596,27 +208,345 @@ top:
/* Done printing */
INFO("All printing done\n");
ret = 0;
done_claimed:
libusb_release_interface(dev, iface);
done_close:
#if 0
if (claimed)
libusb_attach_kernel_driver(dev, iface);
#endif
libusb_close(dev);
done:
if (planedata)
free(planedata);
if (cmdbuf)
free(cmdbuf);
libusb_free_device_list(list, 1);
libusb_exit(ctx);
return ret;
}
#endif
#define CMDBUF_LEN 17
/* Private data stucture */
struct kodak6800_ctx {
struct libusb_device_handle *dev;
uint8_t endp_up;
uint8_t endp_down;
uint8_t *databuf;
uint8_t cmdbuf[CMDBUF_LEN];
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
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 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)
{
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;
struct kodak6800_hdr hdr;
if (!ctx)
return 1;
/* Read in then validate header */
read(data_fd, &hdr, sizeof(hdr));
if (hdr.hdr[0] != 0x03 ||
hdr.hdr[1] != 0x1b ||
hdr.hdr[2] != 0x43 ||
hdr.hdr[3] != 0x48 ||
hdr.hdr[4] != 0x43) {
ERROR("Unrecognized data format!\n");
return(1);
}
ctx->datalen = be16_to_cpu(hdr.rows) * be16_to_cpu(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;
}
/* Exported */
struct dyesub_backend kodak6800_backend = {
.name = "Kodak 6800",
.version = "0.14",
.uri_prefix = "kodak6800",
.cmdline_usage = kodak6800_cmdline,
.cmdline_arg = kodak6800_cmdline_arg,
.init = kodak6800_init,
.teardown = kodak6800_teardown,
.read_parse = kodak6800_read_parse,
#if 0
.main_loop = kodak6800_main_loop,
#endif
};
/* Kodak 6800/6850 data format