aboutsummaryrefslogtreecommitdiffstats
path: root/dvb-c/de-Muenchen
diff options
context:
space:
mode:
authorChristoph Pfister <pfister@linuxtv.org>2008-02-12 18:01:37 +0100
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-02-12 18:01:37 +0100
commit8532ac8a8789050c8aae5187177fa3298cf77809 (patch)
tree94a31c96e3c8fe45785762be03c580225eaf21f0 /dvb-c/de-Muenchen
parentfab758e0b33f65c3dcb0f6cd65722f515383494f (diff)
downloaddtv-scan-tables-8532ac8a8789050c8aae5187177fa3298cf77809.tar.gz
add / update scan files for uk-*
Diffstat (limited to 'dvb-c/de-Muenchen')
0 files changed, 0 insertions, 0 deletions
7 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380
/* $Id: MilfordInstruments.c,v 1.3 2003/10/08 13:39:53 andy-b Exp $
 *
 * driver for Milford Instruments 'BPK' piggy-back serial interface board
 * for standard Hitachi 44780 compatible lcd modules.
 *
 * Written 2003 by Andy Baxter <andy@earthsong.free-online.co.uk>
 *
 * based on the MatrixOrbital driver by M. Reinelt 
 *
 * 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 2, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: MilfordInstruments.c,v $
 * Revision 1.3  2003/10/08 13:39:53  andy-b
 * Cleaned up code in MilfordInstruments.c, and added descriptions for other display sizes (untested)
 *
 * Revision 1.1  2003/09/29 06:58:36  reinelt
 * new driver for Milford Instruments MI420 by Andy Baxter
 *
 */

/* 
 *
 * exported fuctions:
 *
 * struct LCD MilfordInstruments[]
 *
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <termios.h>
#include <fcntl.h>

#include "debug.h"
#include "cfg.h"
#include "lock.h"
#include "display.h"
#include "bar.h"
#include "icon.h"

#define XRES 5
#define YRES 8
#define CHARS 8

static LCD Lcd;
static char *Port=NULL;
static speed_t Speed;
static int Device=-1;
static int Icons;

static char *FrameBuffer1=NULL;
static char *FrameBuffer2=NULL;


static int MI_open (void)
{
  int fd;
  pid_t pid;
  struct termios portset;
  
  if ((pid=lock_port(Port))!=0) {
    if (pid==-1)
      error ("MilfordInstruments: port %s could not be locked", Port);
    else
      error ("MilfordInstruments: port %s is locked by process %d", Port, pid);
    return -1;
  }
  fd = open(Port, O_RDWR | O_NOCTTY | O_NDELAY); 
  if (fd==-1) {
    error ("MilfordInstruments: open(%s) failed: %s", Port, strerror(errno));
    unlock_port(Port);
    return -1;
  }
  if (tcgetattr(fd, &portset)==-1) {
    error ("MilfordInstruments: tcgetattr(%s) failed: %s", Port, strerror(errno));
    unlock_port(Port);
    return -1;
  }
  cfmakeraw(&portset);
  cfsetospeed(&portset, Speed);
  if (tcsetattr(fd, TCSANOW, &portset)==-1) {
    error ("MilfordInstruments: tcsetattr(%s) failed: %s", Port, strerror(errno));
    unlock_port(Port);
    return -1;
  }
  return fd;
}


static void MI_write (char *string, int len)
{
  if (Device==-1) return;
  if (write (Device, string, len)==-1) {
    if (errno==EAGAIN) {
      usleep(1000);
      if (write (Device, string, len)>=0) return;
    }
    error ("MilfordInstruments: write(%s) failed: %s", Port, strerror(errno));
  }
}


static void MI_define_char (int ascii, char *buffer)
{
  char cmd[2]="\376x";
  if (ascii<8) {
    cmd[1]=(char)(64+ascii*8);
    MI_write (cmd, 2);
    MI_write (buffer, 8);
  }
}


static int MI_clear (int full)
{
  memset (FrameBuffer1, ' ', Lcd.rows*Lcd.cols*sizeof(char));

  icon_clear();
  bar_clear();
  
  if (full) {
    memset (FrameBuffer2, ' ', Lcd.rows*Lcd.cols*sizeof(char));
    MI_write ("\376\001", 2);  // clear screen
    }
  return 0;
}


static int MI_init (LCD *Self)
{
  char *port;
  int speed;

  Lcd=*Self;

  // Init the framebuffers
  FrameBuffer1 = (char*)malloc(Lcd.cols*Lcd.rows*sizeof(char));
  FrameBuffer2 = (char*)malloc(Lcd.cols*Lcd.rows*sizeof(char));
  if (FrameBuffer1==NULL || FrameBuffer2==NULL) {
    error ("MilfordInstruments: framebuffer could not be allocated: malloc() failed");
    return -1;
  }

  if (Port) {
    free (Port);
    Port=NULL;
  }

  port=cfg_get ("Port",NULL);
  if (port==NULL || *port=='\0') {
    error ("MilfordInstruments: no 'Port' entry in %s", cfg_source());
    return -1;
  }
  Port=strdup(port);

  if (cfg_number("Speed", 19200, 1200,19200, &speed)<0) return -1;
  switch (speed) {
  case 2400:
    Speed=B2400;
    break;
  case 9600:
    Speed=B9600;
    break;
  default:
    error ("MilfordInstruments: unsupported speed '%d' in %s", speed, cfg_source());
    return -1;
  }    
  
  debug ("using port %s at %d baud", Port, speed);
  
  Device=MI_open();
  if (Device==-1) return -1;

  if (cfg_number("Icons", 0, 0, CHARS, &Icons)<0) return -1;
  if (Icons>0) {
    debug ("reserving %d of %d user-defined characters for icons", Icons, CHARS);
    icon_init(Lcd.rows, Lcd.cols, XRES, YRES, CHARS, Icons, MI_define_char);
    Self->icons=Icons;
    Lcd.icons=Icons;
  }
  
  bar_init(Lcd.rows, Lcd.cols, XRES, YRES, CHARS-Icons);
  bar_add_segment(  0,  0,255, 32); // ASCII  32 = blank
  bar_add_segment(255,255,255,255); // ASCII 255 = block

  MI_clear(1);

  MI_write ("\376\014", 2);  // cursor off

  return 0;
}


void MI_goto (int row, int col)
{
  char cmd[2]="\376x";
  char ddbase=128;
  if (row & 1) { // i.e. if row is 1 or 3
    ddbase += 64;
    };
  if (row & 2) { // i.e. if row is 0 or 2.
    ddbase += 20;
    };
  cmd[1]=(char)(ddbase+col);
  MI_write(cmd,2);
}


int MI_put (int row, int col, char *text)
{
  char *p=FrameBuffer1+row*Lcd.cols+col;
  char *t=text;
  
  while (*t && col++<=Lcd.cols) {
    *p++=*t++;
  }
  return 0;
}


int MI_bar (int type, int row, int col, int max, int len1, int len2)
{
  return bar_draw (type, row, col, max, len1, len2);
}


int MI_icon (int num, int seq, int row, int col)
{
  return icon_draw (num, seq, row, col);
}


static int MI_flush (void)
{
  int row, col, pos1, pos2;
  int c, equal;
  
  bar_process(MI_define_char);
  
  for (row=0; row<Lcd.rows; row++) {
    for (col=0; col<Lcd.cols; col++) {
      c=bar_peek(row, col);
      if (c==-1) c=icon_peek(row, col);
      if (c!=-1) {
	FrameBuffer1[row*Lcd.cols+col]=(char)c;
      }
    }
    for (col=0; col<Lcd.cols; col++) {
      if (FrameBuffer1[row*Lcd.cols+col]==FrameBuffer2[row*Lcd.cols+col]) continue;
      MI_goto (row, col);
      for (pos1=col++, pos2=pos1, equal=0; col<Lcd.cols; col++) {
	if (FrameBuffer1[row*Lcd.cols+col]==FrameBuffer2[row*Lcd.cols+col]) {
	  // If we find just one equal byte, we don't break, because this 
	  // would require a goto, which takes one byte, too.
	  if (++equal>5) break;
	} else {
	  pos2=col;
	  equal=0;
	}
      }
      MI_write (FrameBuffer1+row*Lcd.cols+pos1, pos2-pos1+1);
    }
  }
  
  memcpy (FrameBuffer2, FrameBuffer1, Lcd.rows*Lcd.cols*sizeof(char));

  return 0;
}


int MI_quit (void)
{
  info("MilfordInstruments: shutting down.");

  debug ("closing port %s", Port);
  close (Device);
  unlock_port(Port);

  if (FrameBuffer1) {
    free(FrameBuffer1);
    FrameBuffer1=NULL;
  }

  if (FrameBuffer2) {
    free(FrameBuffer2);
    FrameBuffer2=NULL;
  }

  return (0);
}


LCD MilfordInstruments[] = {
  { name: "MI216",
    rows:  2, 
    cols:  16,
    xres:  XRES,
    yres:  YRES,
    bars:  BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
    icons: 0,
    gpos:  0,
    init:  MI_init,
    clear: MI_clear,
    put:   MI_put,
    bar:   MI_bar,
    icon:  MI_icon,
    gpo:   NULL,
    flush: MI_flush,
    quit:  MI_quit 
  },
  { name: "MI220",
    rows:  2, 
    cols:  20,
    xres:  XRES,
    yres:  YRES,
    bars:  BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
    icons: 0,
    gpos:  0,
    init:  MI_init,
    clear: MI_clear,
    put:   MI_put,
    bar:   MI_bar,
    icon:  MI_icon,
    gpo:   NULL,
    flush: MI_flush,
    quit:  MI_quit 
  },
  { name: "MI240",
    rows:  2, 
    cols:  40,
    xres:  XRES,
    yres:  YRES,
    bars:  BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
    icons: 0,
    gpos:  0,
    init:  MI_init,
    clear: MI_clear,
    put:   MI_put,
    bar:   MI_bar,
    icon:  MI_icon,
    gpo:   NULL,
    flush: MI_flush,
    quit:  MI_quit 
  },
  { name: "MI420",
    rows:  4, 
    cols:  20,
    xres:  XRES,
    yres:  YRES,
    bars:  BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
    icons: 0,
    gpos:  0,
    init:  MI_init,
    clear: MI_clear,
    put:   MI_put,
    bar:   MI_bar,
    icon:  MI_icon,
    gpo:   NULL,
    flush: MI_flush,
    quit:  MI_quit 
  },

  { NULL }
};