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
21 #include <stdlib.h> /* malloc() */
22 #include <string.h> /* memcmp() */
23 #include <sys/types.h> /* open() */
24 #include <sys/stat.h> /* open() */
25 #include <fcntl.h> /* open() */
26 #include <time.h> /* nanosleep(), struct timespec */
28 #include "gettext.h" /* gettext(), ngettext() */
31 #define _(s) gettext(s)
33 struct _pt_tape_info tape_info[5]= {
34 {9, 52}, /* 9mm tape is 52px wide? works for me ;-) */
35 {12,76}, /* and 76px work for me on a 12mm tape - maybe its only 64px */
38 {0,0} /* terminating entry */
41 struct _pt_dev_info ptdevs[] = {
42 {0x04f9, 0x202d, "PT-2430PC", 128, 0}, /* 180dpi, maximum 128px */
43 {0x04f9, 0x202c, "PT-1230PC", 76, 0}, /* 180dpi, supports tapes up to 12mm - I don't know how much pixels it can print! */
47 void ptouch_rawstatus(uint8_t raw[32]);
49 int ptouch_open(ptouch_dev *ptdev)
53 libusb_device_handle *handle = NULL;
54 struct libusb_device_descriptor desc;
58 if ((*ptdev=malloc(sizeof(struct _ptouch_dev))) == NULL) {
59 fprintf(stderr, _("out of memory\n"));
62 if ((libusb_init(NULL)) < 0) {
63 fprintf(stderr, _("libusb_init() failed\n"));
66 // libusb_set_debug(NULL, 3);
67 if ((cnt=libusb_get_device_list(NULL, &devs)) < 0) {
70 while ((dev=devs[i++]) != NULL) {
71 if ((r=libusb_get_device_descriptor(dev, &desc)) < 0) {
72 fprintf(stderr, _("failed to get device descriptor"));
73 libusb_free_device_list(devs, 1);
76 for (int k=0; ptdevs[k].vid > 0; k++) {
77 if ((desc.idVendor == ptdevs[k].vid) && (desc.idProduct == ptdevs[k].pid) && (ptdevs[k].flags >= 0)) {
78 fprintf(stderr, _("%s found on USB bus %d, device %d\n"),
80 libusb_get_bus_number(dev),
81 libusb_get_device_address(dev));
82 if ((r=libusb_open(dev, &handle)) != 0) {
83 fprintf(stderr, _("libusb_open error :%s\n"), libusb_error_name(r));
86 libusb_free_device_list(devs, 1);
87 if ((r=libusb_kernel_driver_active(handle, 0)) == 1) {
88 if ((r=libusb_detach_kernel_driver(handle, 0)) != 0) {
89 fprintf(stderr, _("error while detaching kernel driver: %s\n"), libusb_error_name(r));
92 if ((r=libusb_claim_interface(handle, 0)) != 0) {
93 fprintf(stderr, _("interface claim error: %s\n"), libusb_error_name(r));
101 fprintf(stderr, _("No P-Touch printer found on USB (remember to put switch to position E)\n"));
102 libusb_free_device_list(devs, 1);
106 int ptouch_close(ptouch_dev ptdev)
108 libusb_release_interface(ptdev->h, 0);
109 libusb_close(ptdev->h);
113 int ptouch_send(ptouch_dev ptdev, uint8_t *data, int len)
120 if ((r=libusb_bulk_transfer(ptdev->h, 0x02, data, len, &tx, 0)) != 0) {
121 fprintf(stderr, _("write error: %s\n"), libusb_error_name(r));
125 fprintf(stderr, _("write error: could send only %i of %i bytes\n"), tx, len);
131 int ptouch_init(ptouch_dev ptdev)
133 char cmd[]="\x1b\x40"; /* 1B 40 = ESC @ = INIT */
134 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
137 int ptouch_rasterstart(ptouch_dev ptdev)
139 char cmd[]="\x1b\x69\x52\x01"; /* 1B 69 52 01 = RASTER DATA */
140 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
143 /* print an empty line */
144 int ptouch_lf(ptouch_dev ptdev)
147 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
150 /* print and advance tape, but do not cut */
151 int ptouch_ff(ptouch_dev ptdev)
154 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
157 /* print and cut tape */
158 int ptouch_eject(ptouch_dev ptdev)
161 return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
164 /* print a "cut here" mark (it's just a dashed line) */
165 #define CUTMARK_SPACING 5
166 int ptouch_cutmark(ptouch_dev ptdev)
171 for (i=0; i<CUTMARK_SPACING; i++) {
174 ptouch_rasterstart(ptdev);
178 memset(buf+3, 0, len);
179 int offset=(64-ptouch_getmaxwidth(ptdev)/2);
180 for (i=0; i<ptouch_getmaxwidth(ptdev); i++) {
181 if ((i%8) <= 3) { /* pixels 0-3 get set, 4-7 are unset */
182 buf[3+15-((offset+i)/8)] |= 1<<((offset+i)%8);
185 ptouch_send(ptdev, buf, len+3);
186 for (i=0; i<CUTMARK_SPACING; i++) {
192 void ptouch_rawstatus(uint8_t raw[32])
194 fprintf(stderr, _("debug: dumping raw status bytes\n"));
195 for (int i=0; i<32; i++) {
196 fprintf(stderr, "%02x ", raw[i]);
197 if (((i+1) % 16) == 0) {
198 fprintf(stderr, "\n");
201 fprintf(stderr, "\n");
205 int ptouch_getstatus(ptouch_dev ptdev)
207 char cmd[]="\x1b\x69\x53";
209 int i, r, tx=0, tries=0;
212 ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
215 w.tv_nsec=100000000; /* 0.1 sec */
216 r=nanosleep(&w, NULL);
217 if ((r=libusb_bulk_transfer(ptdev->h, 0x81, buf, 32, &tx, 0)) != 0) {
218 fprintf(stderr, _("read error: %s\n"), libusb_error_name(r));
223 fprintf(stderr, _("timeout while waiting for status response\n"));
228 if (buf[0]==0x80 && buf[1]==0x20) {
229 memcpy(ptdev->raw, buf, 32);
231 fprintf(stderr, _("Error 1 = %02x\n"), buf[8]);
234 fprintf(stderr, _("Error 2 = %02x\n"), buf[9]);
236 ptdev->tape_width_mm=buf[10];
237 ptdev->tape_width_px=0;
238 for (i=0; tape_info[i].mm > 0; i++) {
239 if (tape_info[i].mm == buf[10]) {
240 ptdev->tape_width_px=tape_info[i].px;
243 if (ptdev->tape_width_px == 0) {
244 fprintf(stderr, _("unknown tape width of %imm, please report this.\n"), buf[10]);
246 ptdev->media_type=buf[11];
247 ptdev->status=buf[18];
252 fprintf(stderr, _("got only 16 bytes... wondering what they are:\n"));
253 ptouch_rawstatus(buf);
256 fprintf(stderr, _("read error: got %i instead of 32 bytes\n"), tx);
259 fprintf(stderr, _("strange status:\n"));
260 ptouch_rawstatus(buf);
261 fprintf(stderr, _("trying to flush junk\n"));
262 if ((r=libusb_bulk_transfer(ptdev->h, 0x81, buf, 32, &tx, 0)) != 0) {
263 fprintf(stderr, _("read error: %s\n"), libusb_error_name(r));
266 fprintf(stderr, _("got another %i bytes. now try again\n"), tx);
270 int ptouch_getmaxwidth(ptouch_dev ptdev)
272 return ptdev->tape_width_px;
275 int ptouch_sendraster(ptouch_dev ptdev, uint8_t *data, int len)
279 if (len > 16) { /* PT-2430PC can not print more than 128 px */
280 return -1; /* as we support more devices, we need to check */
281 } /* how much pixels each device support */
285 memcpy(buf+3, data, len);
286 return ptouch_send(ptdev, buf, len+3);