1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/graphlcd-base/glcddrivers/gu256x64-372.c Wed Feb 06 17:32:55 2008 +0000
1.3 @@ -0,0 +1,408 @@
1.4 +/*
1.5 + * GraphLCD driver library
1.6 + *
1.7 + * gu256x64-372.c - 8-bit driver module for Noritake GU256x64-372
1.8 + * VFD displays. The VFD is operating in its 8-bit
1.9 + * mode connected to a single PC parallel port.
1.10 + *
1.11 + * based on:
1.12 + * gu256x32f driver module for graphlcd
1.13 + * (c) 2003 Andreas Brachold <vdr04 AT deltab.de>
1.14 + * HD61830 device
1.15 + * (c) 2001-2003 by Carsten Siebholz <c.siebholz AT t-online.de>
1.16 + * lcdproc 0.4 driver hd44780-ext8bit
1.17 + * (c) 1999, 1995 Benjamin Tse <blt AT comports.com>
1.18 + *
1.19 + * This file is released under the GNU General Public License. Refer
1.20 + * to the COPYING file distributed with this package.
1.21 + *
1.22 + * (c) 2004 Andreas 'randy' Weinberger (randy AT smue.org)
1.23 + */
1.24 +
1.25 +#include <errno.h>
1.26 +#include <syslog.h>
1.27 +#include <unistd.h>
1.28 +#include <sys/time.h>
1.29 +
1.30 +#include "common.h"
1.31 +#include "config.h"
1.32 +#include "gu256x64-372.h"
1.33 +#include "port.h"
1.34 +
1.35 +
1.36 +namespace GLCD
1.37 +{
1.38 +
1.39 +#define SCREENSOFF 0x00 // both screens are off
1.40 +#define SCREEN1ON 0x01 // only screen #1 is on (graphic screen)
1.41 +#define SCREEN2ON 0x02 // only screen #2 is on (graphic/character screen)
1.42 +#define SCREENSON 0x03 // both screens are on
1.43 +
1.44 +#define CURS_AUTOINC 0x04 // cursor increments automatically
1.45 +#define CURS_HOLD 0x05 // cursor holds
1.46 +
1.47 +#define SCREEN2CHAR 0x06 // screen #2 sets to "character" display
1.48 +#define SCREEN2GRAPH 0x07 // screen #2 sets to "graphic" display
1.49 +
1.50 +#define DATA_WRITE 0x08 // data write mode
1.51 +#define DATA_READ 0x09 // data read mode
1.52 +
1.53 +#define DISP_LOSTA1 0x0A // lower addr. of display start of screen #1
1.54 +#define DISP_HISTA1 0x0B // upper addr. of display start of screen #1
1.55 +#define DISP_LOSTA2 0x0C // lower addr. of display start of screen #2
1.56 +#define DISP_HISTA2 0x0D // upper addr. of display start of screen #2
1.57 +#define CURS_LOADDR 0x0E // lower addr. of cursor of screen #1 & #2
1.58 +#define CURS_HIADDR 0x0F // upper addr. of cursor start of screen #1 & #2
1.59 +
1.60 +#define DISP_OR 0x10 // or display of screen #1 & #2
1.61 +#define DISP_EXOR 0x11 // ex-or display of screen #1 & #2
1.62 +#define DISP_AND 0x12 // and display of screen #1 & #2
1.63 +
1.64 +#define BRIGHT_1 0x18 // luminance level 1 100.0%
1.65 +#define BRIGHT_2 0x19 // luminance level 2 87.5%
1.66 +#define BRIGHT_3 0x1A // luminance level 3 75.0%
1.67 +#define BRIGHT_4 0x1B // luminance level 4 62.5%
1.68 +
1.69 +#define WRHI 0x04 // INIT
1.70 +#define WRLO 0x00
1.71 +#define CDHI 0x00 // nSEL
1.72 +#define CDLO 0x08
1.73 +
1.74 +
1.75 +cDriverGU256X64_372::cDriverGU256X64_372(cDriverConfig * config)
1.76 +: config(config)
1.77 +{
1.78 + oldConfig = new cDriverConfig(*config);
1.79 +
1.80 + port = new cParallelPort();
1.81 +
1.82 + m_nRefreshCounter = 0;
1.83 +}
1.84 +
1.85 +cDriverGU256X64_372::~cDriverGU256X64_372()
1.86 +{
1.87 + delete oldConfig;
1.88 + delete port;
1.89 +}
1.90 +
1.91 +int cDriverGU256X64_372::Init()
1.92 +{
1.93 + int x;
1.94 + struct timeval tv1, tv2;
1.95 +
1.96 + width = config->width;
1.97 + if (width <= 0)
1.98 + width = 256;
1.99 + height = config->height;
1.100 + if (height <= 0)
1.101 + height = 64;
1.102 + m_iSizeYb = (height + 7) / 8;
1.103 +
1.104 + for (unsigned int i = 0; i < config->options.size(); i++)
1.105 + {
1.106 + if (config->options[i].name == "")
1.107 + {
1.108 + }
1.109 + }
1.110 +
1.111 + // setup linear lcd array
1.112 + m_pDrawMem = new unsigned char *[width];
1.113 + if (m_pDrawMem)
1.114 + {
1.115 + for (x = 0; x < width; x++)
1.116 + {
1.117 + m_pDrawMem[x] = new unsigned char[m_iSizeYb];
1.118 + memset(m_pDrawMem[x], 0, m_iSizeYb);
1.119 + }
1.120 + }
1.121 + Clear();
1.122 +
1.123 + // setup the lcd array for the "vertical" mem
1.124 + m_pVFDMem = new unsigned char *[width];
1.125 + if (m_pVFDMem)
1.126 + {
1.127 + for (x = 0; x < width; x++)
1.128 + {
1.129 + m_pVFDMem[x] = new unsigned char[m_iSizeYb];
1.130 + memset(m_pVFDMem[x], 0, m_iSizeYb);
1.131 + }
1.132 + }
1.133 + ClearVFDMem();
1.134 +
1.135 + if (config->device == "")
1.136 + {
1.137 + // use DirectIO
1.138 + if (port->Open(config->port) != 0)
1.139 + return -1;
1.140 + uSleep(10);
1.141 + }
1.142 + else
1.143 + {
1.144 + // use ppdev
1.145 + if (port->Open(config->device.c_str()) != 0)
1.146 + return -1;
1.147 + }
1.148 +
1.149 + if (nSleepInit() != 0)
1.150 + {
1.151 + syslog(LOG_ERR, "%s: INFO: cannot change wait parameters Err: %s (cDriver::Init)\n", config->name.c_str(), strerror(errno));
1.152 + m_bSleepIsInit = false;
1.153 + }
1.154 + else
1.155 + {
1.156 + m_bSleepIsInit = true;
1.157 + }
1.158 +
1.159 + syslog(LOG_DEBUG, "%s: benchmark started.\n", config->name.c_str());
1.160 + gettimeofday(&tv1, 0);
1.161 + for (x = 0; x < 10000; x++)
1.162 + {
1.163 + port->WriteData(x % 0x100);
1.164 + }
1.165 + gettimeofday(&tv2, 0);
1.166 + nSleepDeInit();
1.167 + m_nTimingAdjustCmd = ((tv2.tv_sec - tv1.tv_sec) * 10000 + (tv2.tv_usec - tv1.tv_usec)) / 1000;
1.168 + syslog(LOG_DEBUG, "%s: benchmark stopped. Time for Port Command: %ldns\n", config->name.c_str(), m_nTimingAdjustCmd);
1.169 +
1.170 + GU256X64Cmd(SCREEN1ON);
1.171 + GU256X64Cmd(CURS_AUTOINC);
1.172 + GU256X64Cmd(SCREEN2CHAR);
1.173 +
1.174 + GU256X64Cmd(DISP_LOSTA1); GU256X64Data(0x00);
1.175 + GU256X64Cmd(DISP_HISTA1); GU256X64Data(0x00);
1.176 + GU256X64Cmd(DISP_LOSTA2); GU256X64Data(0x00);
1.177 + GU256X64Cmd(DISP_HISTA2); GU256X64Data(0x10);
1.178 + GU256X64Cmd(CURS_LOADDR); GU256X64Data(0x00);
1.179 + GU256X64Cmd(CURS_HIADDR); GU256X64Data(0x00);
1.180 +
1.181 + GU256X64Cmd(DISP_OR);
1.182 +
1.183 + port->Release();
1.184 +
1.185 + *oldConfig = *config;
1.186 +
1.187 + // Set Display SetBrightness
1.188 + SetBrightness(config->brightness);
1.189 + // clear display
1.190 + Clear();
1.191 + ClearVFDMem();
1.192 +
1.193 + syslog(LOG_INFO, "%s: gu256x64-372 initialized.\n", config->name.c_str());
1.194 + return 0;
1.195 +}
1.196 +
1.197 +int cDriverGU256X64_372::DeInit()
1.198 +{
1.199 + int x;
1.200 +
1.201 + if (m_pVFDMem)
1.202 + for (x = 0; x < width; x++)
1.203 + {
1.204 + delete[] m_pVFDMem[x];
1.205 + }
1.206 + delete[] m_pVFDMem;
1.207 +
1.208 + if (m_pDrawMem)
1.209 + for (x = 0; x < width; x++)
1.210 + {
1.211 + delete[] m_pDrawMem[x];
1.212 + }
1.213 + delete[] m_pDrawMem;
1.214 +
1.215 + if (port->Close() != 0)
1.216 + return -1;
1.217 + return 0;
1.218 +}
1.219 +
1.220 +int cDriverGU256X64_372::CheckSetup()
1.221 +{
1.222 + if (config->device != oldConfig->device ||
1.223 + config->port != oldConfig->port ||
1.224 + config->width != oldConfig->width ||
1.225 + config->height != oldConfig->height)
1.226 + {
1.227 + DeInit();
1.228 + Init();
1.229 + return 0;
1.230 + }
1.231 +
1.232 + if (config->brightness != oldConfig->brightness)
1.233 + {
1.234 + oldConfig->brightness = config->brightness;
1.235 + SetBrightness(config->brightness);
1.236 + }
1.237 + if (config->upsideDown != oldConfig->upsideDown ||
1.238 + config->invert != oldConfig->invert)
1.239 + {
1.240 + oldConfig->upsideDown = config->upsideDown;
1.241 + oldConfig->invert = config->invert;
1.242 + return 1;
1.243 + }
1.244 + return 0;
1.245 +}
1.246 +
1.247 +void cDriverGU256X64_372::ClearVFDMem()
1.248 +{
1.249 + for (int x = 0; x < width; x++)
1.250 + memset(m_pVFDMem[x], 0, m_iSizeYb);
1.251 +}
1.252 +
1.253 +void cDriverGU256X64_372::Clear()
1.254 +{
1.255 + for (int x = 0; x < width; x++)
1.256 + memset(m_pDrawMem[x], 0, m_iSizeYb);
1.257 +}
1.258 +
1.259 +void cDriverGU256X64_372::SetBrightness(unsigned int percent)
1.260 +{
1.261 + port->Claim();
1.262 +
1.263 + if (percent > 88) {
1.264 + GU256X64Cmd(BRIGHT_1);
1.265 + } else if (percent > 75) {
1.266 + GU256X64Cmd(BRIGHT_2);
1.267 + } else if (percent > 66) {
1.268 + GU256X64Cmd(BRIGHT_3);
1.269 + } else if (percent > 0 ) {
1.270 + GU256X64Cmd(BRIGHT_4);
1.271 + } else {
1.272 + GU256X64Cmd(SCREENSOFF);
1.273 + }
1.274 + port->Release();
1.275 +}
1.276 +
1.277 +void cDriverGU256X64_372::GU256X64Cmd(unsigned char data)
1.278 +{
1.279 + if (m_bSleepIsInit)
1.280 + nSleepInit();
1.281 +
1.282 + port->WriteControl(CDHI | WRHI);
1.283 + port->WriteData(data);
1.284 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.285 + port->WriteControl(CDHI | WRLO);
1.286 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.287 + port->WriteControl(CDHI | WRHI);
1.288 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.289 +}
1.290 +
1.291 +void cDriverGU256X64_372::GU256X64Data(unsigned char data)
1.292 +{
1.293 + if (m_bSleepIsInit)
1.294 + nSleepInit();
1.295 +
1.296 + port->WriteControl(CDLO | WRHI);
1.297 + port->WriteData(data);
1.298 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.299 + port->WriteControl(CDLO | WRLO);
1.300 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.301 + port->WriteControl(CDLO | WRHI);
1.302 + nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
1.303 +}
1.304 +
1.305 +void cDriverGU256X64_372::SetPixel(int x, int y)
1.306 +{
1.307 + unsigned char c;
1.308 +
1.309 + if (!m_pDrawMem)
1.310 + return;
1.311 +
1.312 + if (x >= width || x < 0)
1.313 + return;
1.314 + if (y >= height || y < 0)
1.315 + return;
1.316 +
1.317 + if (config->upsideDown)
1.318 + {
1.319 + x = width - 1 - x;
1.320 + y = height - 1 - y;
1.321 + }
1.322 +
1.323 + c = 0x80 >> (y % 8);
1.324 +
1.325 + m_pDrawMem[x][y/8] = m_pDrawMem[x][y/8] | c;
1.326 +}
1.327 +
1.328 +void cDriverGU256X64_372::Set8Pixels(int x, int y, unsigned char data)
1.329 +{
1.330 + int n;
1.331 +
1.332 + // x - pos is'nt mayby align to 8
1.333 + x &= 0xFFF8;
1.334 +
1.335 + for (n = 0; n < 8; ++n)
1.336 + {
1.337 + if (data & (0x80 >> n)) // if bit is set
1.338 + SetPixel(x + n, y);
1.339 + }
1.340 +}
1.341 +
1.342 +void cDriverGU256X64_372::Refresh(bool refreshAll)
1.343 +{
1.344 + int xb, yb;
1.345 +
1.346 + if (!m_pVFDMem || !m_pDrawMem)
1.347 + return;
1.348 +
1.349 + bool doRefresh = false;
1.350 + int minX = width;
1.351 + int maxX = 0;
1.352 + int minYb = m_iSizeYb;
1.353 + int maxYb = 0;
1.354 +
1.355 + if (CheckSetup() > 0)
1.356 + refreshAll = true;
1.357 +
1.358 + for (xb = 0; xb < width; ++xb)
1.359 + {
1.360 + for (yb = 0; yb < m_iSizeYb; ++yb)
1.361 + {
1.362 + if (m_pVFDMem[xb][yb] != m_pDrawMem[xb][yb])
1.363 + {
1.364 + m_pVFDMem[xb][yb] = m_pDrawMem[xb][yb];
1.365 + minX = std::min(minX, xb);
1.366 + maxX = std::max(maxX, xb);
1.367 + minYb = std::min(minYb, yb);
1.368 + maxYb = std::max(maxYb, yb + 1);
1.369 + doRefresh = true;
1.370 + }
1.371 + }
1.372 + }
1.373 +
1.374 + m_nRefreshCounter = (m_nRefreshCounter + 1) % config->refreshDisplay;
1.375 + if (!refreshAll && !m_nRefreshCounter)
1.376 + refreshAll = true;
1.377 +
1.378 + if (refreshAll || doRefresh)
1.379 + {
1.380 + if (refreshAll) {
1.381 + minX = 0;
1.382 + maxX = width;
1.383 + minYb = 0;
1.384 + maxYb = m_iSizeYb;
1.385 + // and reset RefreshCounter
1.386 + m_nRefreshCounter = 0;
1.387 + }
1.388 +
1.389 + minX = std::max(minX, 0);
1.390 + maxX = std::min(maxX, width - 1);
1.391 + minYb = std::max(minYb, 0);
1.392 + maxYb = std::min(maxYb, m_iSizeYb);
1.393 +
1.394 + port->Claim();
1.395 +
1.396 + GU256X64Cmd(CURS_LOADDR); GU256X64Data(0x00);
1.397 + GU256X64Cmd(CURS_HIADDR); GU256X64Data(0x00);
1.398 + GU256X64Cmd(DATA_WRITE);
1.399 +
1.400 + for (xb = 0; xb < width; xb++)
1.401 + {
1.402 + for (yb = 0; yb < m_iSizeYb; yb++)
1.403 + {
1.404 + GU256X64Data((m_pVFDMem[xb][yb]) ^ (config->invert ? 0xff : 0x00));
1.405 + }
1.406 + }
1.407 + port->Release();
1.408 + }
1.409 +}
1.410 +
1.411 +} // end of namespace