2 libptouch - functions to help accessing a brother ptouch
4 Copyright (C) 2013 Dominic Radermacher <dominic.radermacher@gmail.com>
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License version 3 as
8 published by the Free Software Foundation
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #define _POSIX_C_SOURCE 199309L /* needed for nanosleep() when using -std=c11 */
23 #include <stdlib.h> /* malloc() */
24 #include <string.h> /* memcmp() */
25 #include <sys/types.h> /* open() */
26 #include <sys/stat.h> /* open() */
27 #include <fcntl.h> /* open() */
28 #include <time.h> /* nanosleep(), struct timespec */
30 #include "gettext.h" /* gettext(), ngettext() */
33 #define _(s) gettext(s)
35 struct _pt_tape_info tape_info[5]= {
36 {9, 52}, /* 9mm tape is 52px wide? works for me ;-) */
37 {12,76}, /* and 76px work for me on a 12mm tape - maybe its only 64px */
40 {0,0} /* terminating entry */
43 struct _pt_dev_info ptdevs[] = {
44 {0x04f9, 0x202d, "PT-2430PC", 128, 0}, /* 180dpi, maximum 128px */
45 {0x04f9, 0x202c, "PT-1230PC", 76, 0}, /* 180dpi, supports tapes up to 12mm - I don't know how much pixels it can print! */
49 void ptouch_rawstatus(uint8_t raw[32]);
51 int ptouch_open(ptouch_dev *ptdev)
55 libusb_device_handle *handle = NULL;
56 struct libusb_device_descriptor desc;
60 if ((*ptdev=malloc(sizeof(struct _ptouch_dev))) == NULL) {
61 fprintf(stderr, _("out of memory\n"));
64 if ((libusb_init(NULL)) < 0) {
65 fprintf(stderr, _("libusb_init() failed\n"));
68 // libusb_set_debug(NULL, 3);
69 if ((cnt=libusb_get_device_list(NULL, &devs)) < 0) {
72 while ((dev=devs[i++]) != NULL) {
73 if ((r=libusb_get_device_descriptor(dev, &desc)) < 0) {
74 fprintf(stderr, _("failed to get device descriptor"));
75 libusb_free_device_list(devs, 1);
78 for (int k=0; ptdevs[k].vid > 0; k++) {
79 if ((desc.idVendor == ptdevs[k].vid) && (desc.idProduct == ptdevs[k].pid) && (ptdevs[k].flags >= 0)) {
80 fprintf(stderr, _("%s found on USB bus %d, device %d\n"),
82 libusb_get_bus_number(dev),
83 libusb_get_device_address(dev));
84 if ((r=libusb_open(dev, &handle)) != 0) {
85 fprintf(stderr, _("libusb_open error :%s\n"), libusb_error_name(r));
88 libusb_free_device_list(devs, 1);
89 if ((r=libusb_kernel_driver_active(handle, 0)) == 1) {
90 if ((r=libusb_detach_kernel_driver(handle, 0)) != 0) {
91 fprintf(stderr, _("error while detaching kernel driver: %s\n"), libusb_error_name(r));
94 if ((r=libusb_claim_interface(handle, 0)) != 0) {
95 fprintf(stderr, _("interface claim error: %s\n"), libusb_error_name(r));
103 fprintf(stderr, _("No P-Touch printer found on USB (remember to put switch to position E)\n"));
104 libusb_free_device_list(devs, 1);
108 int ptouch_close(ptouch_dev ptdev)
110 libusb_release_interface(ptdev->h, 0);
111 libusb_close(ptdev->h);
115 int ptouch_send(ptouch_dev ptdev, uint8_t *data, int len)
122 if ((r=libusb_bulk_transfer(ptdev->h, 0x02, data, len, &tx, 0)) != 0) {
123 fprintf(stderr, _("write error: %s\n"), libusb_error_name(r));
127 fprintf(stderr, _("write error: could send only %i of %i bytes\n"), tx, len);
133 int ptouch_init(ptouch_dev ptdev)
135 char cmd[]="\x1b\x40"; /* 1B 40 = ESC @ = INIT */
136 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
139 int ptouch_rasterstart(ptouch_dev ptdev)
141 char cmd[]="\x1b\x69\x52\x01"; /* 1B 69 52 01 = RASTER DATA */
142 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
145 /* print an empty line */
146 int ptouch_lf(ptouch_dev ptdev)
149 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
152 /* print and advance tape, but do not cut */
153 int ptouch_ff(ptouch_dev ptdev)
156 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
159 /* print and cut tape */
160 int ptouch_eject(ptouch_dev ptdev)
163 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
166 /* print a "cut here" mark (it's just a dashed line) */
167 #define CUTMARK_SPACING 5
168 int ptouch_cutmark(ptouch_dev ptdev)
173 for (i=0; i<CUTMARK_SPACING; i++) {
176 ptouch_rasterstart(ptdev);
180 memset(buf+3, 0, len);
181 int offset=(64-ptouch_getmaxwidth(ptdev)/2);
182 for (i=0; i<ptouch_getmaxwidth(ptdev); i++) {
183 if ((i%8) <= 3) { /* pixels 0-3 get set, 4-7 are unset */
184 buf[3+15-((offset+i)/8)] |= 1<<((offset+i)%8);
187 ptouch_send(ptdev, buf, len+3);
188 for (i=0; i<CUTMARK_SPACING; i++) {
194 void ptouch_rawstatus(uint8_t raw[32])
196 fprintf(stderr, _("debug: dumping raw status bytes\n"));
197 for (int i=0; i<32; i++) {
198 fprintf(stderr, "%02x ", raw[i]);
199 if (((i+1) % 16) == 0) {
200 fprintf(stderr, "\n");
203 fprintf(stderr, "\n");
207 int ptouch_getstatus(ptouch_dev ptdev)
209 char cmd[]="\x1b\x69\x53";
211 int i, r, tx=0, tries=0;
214 ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
217 w.tv_nsec=100000000; /* 0.1 sec */
218 r=nanosleep(&w, NULL);
219 if ((r=libusb_bulk_transfer(ptdev->h, 0x81, buf, 32, &tx, 0)) != 0) {
220 fprintf(stderr, _("read error: %s\n"), libusb_error_name(r));
225 fprintf(stderr, _("timeout while waiting for status response\n"));
230 if (buf[0]==0x80 && buf[1]==0x20) {
231 memcpy(ptdev->raw, buf, 32);
233 fprintf(stderr, _("Error 1 = %02x\n"), buf[8]);
236 fprintf(stderr, _("Error 2 = %02x\n"), buf[9]);
238 ptdev->tape_width_mm=buf[10];
239 ptdev->tape_width_px=0;
240 for (i=0; tape_info[i].mm > 0; i++) {
241 if (tape_info[i].mm == buf[10]) {
242 ptdev->tape_width_px=tape_info[i].px;
245 if (ptdev->tape_width_px == 0) {
246 fprintf(stderr, _("unknown tape width of %imm, please report this.\n"), buf[10]);
248 ptdev->media_type=buf[11];
249 ptdev->status=buf[18];
254 fprintf(stderr, _("got only 16 bytes... wondering what they are:\n"));
255 ptouch_rawstatus(buf);
258 fprintf(stderr, _("read error: got %i instead of 32 bytes\n"), tx);
261 fprintf(stderr, _("strange status:\n"));
262 ptouch_rawstatus(buf);
263 fprintf(stderr, _("trying to flush junk\n"));
264 if ((r=libusb_bulk_transfer(ptdev->h, 0x81, buf, 32, &tx, 0)) != 0) {
265 fprintf(stderr, _("read error: %s\n"), libusb_error_name(r));
268 fprintf(stderr, _("got another %i bytes. now try again\n"), tx);
272 int ptouch_getmaxwidth(ptouch_dev ptdev)
274 return ptdev->tape_width_px;
277 int ptouch_sendraster(ptouch_dev ptdev, uint8_t *data, int len)
281 if (len > 16) { /* PT-2430PC can not print more than 128 px */
282 return -1; /* as we support more devices, we need to check */
283 } /* how much pixels each device support */
287 memcpy(buf+3, data, len);
288 return ptouch_send(ptdev, buf, len+3);