summaryrefslogtreecommitdiff
path: root/glcddrivers/gu256x64-372.c
diff options
context:
space:
mode:
Diffstat (limited to 'glcddrivers/gu256x64-372.c')
-rw-r--r--glcddrivers/gu256x64-372.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/glcddrivers/gu256x64-372.c b/glcddrivers/gu256x64-372.c
new file mode 100644
index 0000000..6eb2a4c
--- /dev/null
+++ b/glcddrivers/gu256x64-372.c
@@ -0,0 +1,408 @@
+/*
+ * GraphLCD driver library
+ *
+ * gu256x64-372.c - 8-bit driver module for Noritake GU256x64-372
+ * VFD displays. The VFD is operating in its 8-bit
+ * mode connected to a single PC parallel port.
+ *
+ * based on:
+ * gu256x32f driver module for graphlcd
+ * (c) 2003 Andreas Brachold <vdr04 AT deltab.de>
+ * HD61830 device
+ * (c) 2001-2003 by Carsten Siebholz <c.siebholz AT t-online.de>
+ * lcdproc 0.4 driver hd44780-ext8bit
+ * (c) 1999, 1995 Benjamin Tse <blt AT comports.com>
+ *
+ * This file is released under the GNU General Public License. Refer
+ * to the COPYING file distributed with this package.
+ *
+ * (c) 2004 Andreas 'randy' Weinberger (randy AT smue.org)
+ */
+
+#include <errno.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include "common.h"
+#include "config.h"
+#include "gu256x64-372.h"
+#include "port.h"
+
+
+namespace GLCD
+{
+
+#define SCREENSOFF 0x00 // both screens are off
+#define SCREEN1ON 0x01 // only screen #1 is on (graphic screen)
+#define SCREEN2ON 0x02 // only screen #2 is on (graphic/character screen)
+#define SCREENSON 0x03 // both screens are on
+
+#define CURS_AUTOINC 0x04 // cursor increments automatically
+#define CURS_HOLD 0x05 // cursor holds
+
+#define SCREEN2CHAR 0x06 // screen #2 sets to "character" display
+#define SCREEN2GRAPH 0x07 // screen #2 sets to "graphic" display
+
+#define DATA_WRITE 0x08 // data write mode
+#define DATA_READ 0x09 // data read mode
+
+#define DISP_LOSTA1 0x0A // lower addr. of display start of screen #1
+#define DISP_HISTA1 0x0B // upper addr. of display start of screen #1
+#define DISP_LOSTA2 0x0C // lower addr. of display start of screen #2
+#define DISP_HISTA2 0x0D // upper addr. of display start of screen #2
+#define CURS_LOADDR 0x0E // lower addr. of cursor of screen #1 & #2
+#define CURS_HIADDR 0x0F // upper addr. of cursor start of screen #1 & #2
+
+#define DISP_OR 0x10 // or display of screen #1 & #2
+#define DISP_EXOR 0x11 // ex-or display of screen #1 & #2
+#define DISP_AND 0x12 // and display of screen #1 & #2
+
+#define BRIGHT_1 0x18 // luminance level 1 100.0%
+#define BRIGHT_2 0x19 // luminance level 2 87.5%
+#define BRIGHT_3 0x1A // luminance level 3 75.0%
+#define BRIGHT_4 0x1B // luminance level 4 62.5%
+
+#define WRHI 0x04 // INIT
+#define WRLO 0x00
+#define CDHI 0x00 // nSEL
+#define CDLO 0x08
+
+
+cDriverGU256X64_372::cDriverGU256X64_372(cDriverConfig * config)
+: config(config)
+{
+ oldConfig = new cDriverConfig(*config);
+
+ port = new cParallelPort();
+
+ m_nRefreshCounter = 0;
+}
+
+cDriverGU256X64_372::~cDriverGU256X64_372()
+{
+ delete oldConfig;
+ delete port;
+}
+
+int cDriverGU256X64_372::Init()
+{
+ int x;
+ struct timeval tv1, tv2;
+
+ width = config->width;
+ if (width <= 0)
+ width = 256;
+ height = config->height;
+ if (height <= 0)
+ height = 64;
+ m_iSizeYb = (height + 7) / 8;
+
+ for (unsigned int i = 0; i < config->options.size(); i++)
+ {
+ if (config->options[i].name == "")
+ {
+ }
+ }
+
+ // setup linear lcd array
+ m_pDrawMem = new unsigned char *[width];
+ if (m_pDrawMem)
+ {
+ for (x = 0; x < width; x++)
+ {
+ m_pDrawMem[x] = new unsigned char[m_iSizeYb];
+ memset(m_pDrawMem[x], 0, m_iSizeYb);
+ }
+ }
+ Clear();
+
+ // setup the lcd array for the "vertical" mem
+ m_pVFDMem = new unsigned char *[width];
+ if (m_pVFDMem)
+ {
+ for (x = 0; x < width; x++)
+ {
+ m_pVFDMem[x] = new unsigned char[m_iSizeYb];
+ memset(m_pVFDMem[x], 0, m_iSizeYb);
+ }
+ }
+ ClearVFDMem();
+
+ if (config->device == "")
+ {
+ // use DirectIO
+ if (port->Open(config->port) != 0)
+ return -1;
+ uSleep(10);
+ }
+ else
+ {
+ // use ppdev
+ if (port->Open(config->device.c_str()) != 0)
+ return -1;
+ }
+
+ if (nSleepInit() != 0)
+ {
+ syslog(LOG_ERR, "%s: INFO: cannot change wait parameters Err: %s (cDriver::Init)\n", config->name.c_str(), strerror(errno));
+ m_bSleepIsInit = false;
+ }
+ else
+ {
+ m_bSleepIsInit = true;
+ }
+
+ syslog(LOG_DEBUG, "%s: benchmark started.\n", config->name.c_str());
+ gettimeofday(&tv1, 0);
+ for (x = 0; x < 10000; x++)
+ {
+ port->WriteData(x % 0x100);
+ }
+ gettimeofday(&tv2, 0);
+ nSleepDeInit();
+ m_nTimingAdjustCmd = ((tv2.tv_sec - tv1.tv_sec) * 10000 + (tv2.tv_usec - tv1.tv_usec)) / 1000;
+ syslog(LOG_DEBUG, "%s: benchmark stopped. Time for Port Command: %ldns\n", config->name.c_str(), m_nTimingAdjustCmd);
+
+ GU256X64Cmd(SCREEN1ON);
+ GU256X64Cmd(CURS_AUTOINC);
+ GU256X64Cmd(SCREEN2CHAR);
+
+ GU256X64Cmd(DISP_LOSTA1); GU256X64Data(0x00);
+ GU256X64Cmd(DISP_HISTA1); GU256X64Data(0x00);
+ GU256X64Cmd(DISP_LOSTA2); GU256X64Data(0x00);
+ GU256X64Cmd(DISP_HISTA2); GU256X64Data(0x10);
+ GU256X64Cmd(CURS_LOADDR); GU256X64Data(0x00);
+ GU256X64Cmd(CURS_HIADDR); GU256X64Data(0x00);
+
+ GU256X64Cmd(DISP_OR);
+
+ port->Release();
+
+ *oldConfig = *config;
+
+ // Set Display SetBrightness
+ SetBrightness(config->brightness);
+ // clear display
+ Clear();
+ ClearVFDMem();
+
+ syslog(LOG_INFO, "%s: gu256x64-372 initialized.\n", config->name.c_str());
+ return 0;
+}
+
+int cDriverGU256X64_372::DeInit()
+{
+ int x;
+
+ if (m_pVFDMem)
+ for (x = 0; x < width; x++)
+ {
+ delete[] m_pVFDMem[x];
+ }
+ delete[] m_pVFDMem;
+
+ if (m_pDrawMem)
+ for (x = 0; x < width; x++)
+ {
+ delete[] m_pDrawMem[x];
+ }
+ delete[] m_pDrawMem;
+
+ if (port->Close() != 0)
+ return -1;
+ return 0;
+}
+
+int cDriverGU256X64_372::CheckSetup()
+{
+ if (config->device != oldConfig->device ||
+ config->port != oldConfig->port ||
+ config->width != oldConfig->width ||
+ config->height != oldConfig->height)
+ {
+ DeInit();
+ Init();
+ return 0;
+ }
+
+ if (config->brightness != oldConfig->brightness)
+ {
+ oldConfig->brightness = config->brightness;
+ SetBrightness(config->brightness);
+ }
+ if (config->upsideDown != oldConfig->upsideDown ||
+ config->invert != oldConfig->invert)
+ {
+ oldConfig->upsideDown = config->upsideDown;
+ oldConfig->invert = config->invert;
+ return 1;
+ }
+ return 0;
+}
+
+void cDriverGU256X64_372::ClearVFDMem()
+{
+ for (int x = 0; x < width; x++)
+ memset(m_pVFDMem[x], 0, m_iSizeYb);
+}
+
+void cDriverGU256X64_372::Clear()
+{
+ for (int x = 0; x < width; x++)
+ memset(m_pDrawMem[x], 0, m_iSizeYb);
+}
+
+void cDriverGU256X64_372::SetBrightness(unsigned int percent)
+{
+ port->Claim();
+
+ if (percent > 88) {
+ GU256X64Cmd(BRIGHT_1);
+ } else if (percent > 75) {
+ GU256X64Cmd(BRIGHT_2);
+ } else if (percent > 66) {
+ GU256X64Cmd(BRIGHT_3);
+ } else if (percent > 0 ) {
+ GU256X64Cmd(BRIGHT_4);
+ } else {
+ GU256X64Cmd(SCREENSOFF);
+ }
+ port->Release();
+}
+
+void cDriverGU256X64_372::GU256X64Cmd(unsigned char data)
+{
+ if (m_bSleepIsInit)
+ nSleepInit();
+
+ port->WriteControl(CDHI | WRHI);
+ port->WriteData(data);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+ port->WriteControl(CDHI | WRLO);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+ port->WriteControl(CDHI | WRHI);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+}
+
+void cDriverGU256X64_372::GU256X64Data(unsigned char data)
+{
+ if (m_bSleepIsInit)
+ nSleepInit();
+
+ port->WriteControl(CDLO | WRHI);
+ port->WriteData(data);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+ port->WriteControl(CDLO | WRLO);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+ port->WriteControl(CDLO | WRHI);
+ nSleep(100 + (100 * config->adjustTiming) - m_nTimingAdjustCmd);
+}
+
+void cDriverGU256X64_372::SetPixel(int x, int y)
+{
+ unsigned char c;
+
+ if (!m_pDrawMem)
+ return;
+
+ if (x >= width || x < 0)
+ return;
+ if (y >= height || y < 0)
+ return;
+
+ if (config->upsideDown)
+ {
+ x = width - 1 - x;
+ y = height - 1 - y;
+ }
+
+ c = 0x80 >> (y % 8);
+
+ m_pDrawMem[x][y/8] = m_pDrawMem[x][y/8] | c;
+}
+
+void cDriverGU256X64_372::Set8Pixels(int x, int y, unsigned char data)
+{
+ int n;
+
+ // x - pos is'nt mayby align to 8
+ x &= 0xFFF8;
+
+ for (n = 0; n < 8; ++n)
+ {
+ if (data & (0x80 >> n)) // if bit is set
+ SetPixel(x + n, y);
+ }
+}
+
+void cDriverGU256X64_372::Refresh(bool refreshAll)
+{
+ int xb, yb;
+
+ if (!m_pVFDMem || !m_pDrawMem)
+ return;
+
+ bool doRefresh = false;
+ int minX = width;
+ int maxX = 0;
+ int minYb = m_iSizeYb;
+ int maxYb = 0;
+
+ if (CheckSetup() > 0)
+ refreshAll = true;
+
+ for (xb = 0; xb < width; ++xb)
+ {
+ for (yb = 0; yb < m_iSizeYb; ++yb)
+ {
+ if (m_pVFDMem[xb][yb] != m_pDrawMem[xb][yb])
+ {
+ m_pVFDMem[xb][yb] = m_pDrawMem[xb][yb];
+ minX = std::min(minX, xb);
+ maxX = std::max(maxX, xb);
+ minYb = std::min(minYb, yb);
+ maxYb = std::max(maxYb, yb + 1);
+ doRefresh = true;
+ }
+ }
+ }
+
+ m_nRefreshCounter = (m_nRefreshCounter + 1) % config->refreshDisplay;
+ if (!refreshAll && !m_nRefreshCounter)
+ refreshAll = true;
+
+ if (refreshAll || doRefresh)
+ {
+ if (refreshAll) {
+ minX = 0;
+ maxX = width;
+ minYb = 0;
+ maxYb = m_iSizeYb;
+ // and reset RefreshCounter
+ m_nRefreshCounter = 0;
+ }
+
+ minX = std::max(minX, 0);
+ maxX = std::min(maxX, width - 1);
+ minYb = std::max(minYb, 0);
+ maxYb = std::min(maxYb, m_iSizeYb);
+
+ port->Claim();
+
+ GU256X64Cmd(CURS_LOADDR); GU256X64Data(0x00);
+ GU256X64Cmd(CURS_HIADDR); GU256X64Data(0x00);
+ GU256X64Cmd(DATA_WRITE);
+
+ for (xb = 0; xb < width; xb++)
+ {
+ for (yb = 0; yb < m_iSizeYb; yb++)
+ {
+ GU256X64Data((m_pVFDMem[xb][yb]) ^ (config->invert ? 0xff : 0x00));
+ }
+ }
+ port->Release();
+ }
+}
+
+} // end of namespace
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-29 02:45:25 +0000