marschap
b3230cf90f
(get rid of those pseudo options named 'Arguments' in the config file) - replace printf / printf calls by debug / report calls in some drivers - sort and extend LCDd.conf
599 lines
12 KiB
C
599 lines
12 KiB
C
/*
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*
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* Chris Debenham - eSun Systems Engineer <chris.debenham@aus.sun.com>
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*
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* Heres a bit more info on the display.
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* It is the LB216 and is made by R.T.N. Australia
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* The web page for it is http://www.nollet.com.au/
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* It is a serial 16x2 LCD with software controllable backlight.
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* They also make 40x4 displays (which I'll be getting one of soon :-) )
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* 3 wire connection (5V,0V and serial), 2400 or 9600 bps.
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* 8 custom characters
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* 40*83.5MM size
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* made in australia :-)
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <termios.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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//#ifdef HAVE_NCURSES_H
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//# include <ncurses.h>
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//#else
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//# include <curses.h>
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//#endif
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#include "lcd.h"
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#include "lb216.h"
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#include "shared/str.h"
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#include "report.h"
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//#include "drv_base.h"
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#define LB216_DEFAULT_DEVICE "/dev/lcd"
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#define LB216_DEFAULT_SPEED 9600
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#define LB216_DEFAULT_BRIGHTNESS 255
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static int custom=0;
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typedef enum {
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hbar = 1,
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vbar = 2,
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bign = 4,
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beat = 8 } custom_type;
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static int fd;
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static char *framebuf = NULL;
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static int width = LCD_DEFAULT_WIDTH;
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static int height = LCD_DEFAULT_HEIGHT;
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static int cellwidth = LCD_DEFAULT_CELLWIDTH;
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static int cellheight = LCD_DEFAULT_CELLHEIGHT;
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static void LB216_hidecursor();
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static void LB216_reboot();
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// Vars for the server core
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MODULE_EXPORT char *api_version = API_VERSION;
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MODULE_EXPORT int stay_in_foreground = 0;
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MODULE_EXPORT int supports_multiple = 0;
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MODULE_EXPORT char *symbol_prefix = "LB216_";
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// TODO: Get the frame buffers working right
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/////////////////////////////////////////////////////////////////
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// Opens com port and sets baud correctly...
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//
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MODULE_EXPORT int
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LB216_init(Driver * drvthis, char *args)
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{
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struct termios portset;
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int reboot=0;
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char device[256] = LB216_DEFAULT_DEVICE;
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int speed = LB216_DEFAULT_SPEED;
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int backlight_brightness = LB216_DEFAULT_BRIGHTNESS;
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/* Read config file */
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/* What device should be used */
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strncpy(device, drvthis->config_get_string(drvthis->name, "Device", 0,
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LB216_DEFAULT_DEVICE), sizeof(device));
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device[sizeof(device)-1] = '\0';
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/* What speed to use */
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speed = drvthis->config_get_int(drvthis->name, "Speed", 0, LB216_DEFAULT_SPEED);
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if (speed == 2400) speed = B2400;
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else if (speed == 9600) speed = B9600;
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else {
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report(RPT_WARNING, "lb216_init: Illegal speed: %d. Must be 2400 or 9600. Using default.\n", speed);
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speed = B9600;
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}
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/* Which backlight brightness */
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backlight_brightness = drvthis->config_get_int ( drvthis->name , "Brightness" , 0 , LB216_DEFAULT_BRIGHTNESS);
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if ((backlight_brightness < 0) || (backlight_brightness > 255)) {
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report (RPT_WARNING, "lb216_init: Brightness must be between 0 and 255. Using default value.\n");
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backlight_brightness = LB216_DEFAULT_BRIGHTNESS;
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}
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/* Reboot display? */
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reboot = drvthis->config_get_bool( drvthis->name , "Reboot", 0, 0);
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if (reboot)
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report (RPT_INFO, "LCDd: rebooting LB216 LCD...\n");
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/* End of config file parsing */
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// Set up io port correctly, and open it...
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fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY);
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if (fd == -1)
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{
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report(RPT_ERR, "lb216_init: open(%s) failed (%s)\n", device, strerror(errno));
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return -1;
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}
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report(RPT_DEBUG, "lb216_init: opened device %s\n", device);
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tcgetattr(fd, &portset);
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// We use RAW mode
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#ifdef HAVE_CFMAKERAW
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// The easy way
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cfmakeraw( &portset );
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#else
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// The hard way
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portset.c_iflag &= ~( IGNBRK | BRKINT | PARMRK | ISTRIP
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| INLCR | IGNCR | ICRNL | IXON );
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portset.c_oflag &= ~OPOST;
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portset.c_lflag &= ~( ECHO | ECHONL | ICANON | ISIG | IEXTEN );
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portset.c_cflag &= ~( CSIZE | PARENB | CRTSCTS );
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portset.c_cflag |= CS8 | CREAD | CLOCAL ;
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#endif
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// Set port speed
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cfsetospeed (&portset, speed);
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cfsetispeed (&portset, B0);
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// Do it...
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tcsetattr(fd, TCSANOW, &portset);
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// Make sure the frame buffer is there...
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framebuf = (unsigned char *) malloc (width * height);
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if (framebuf == NULL) {
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report(RPT_ERR, "lb216_init: unable to create framebuffer.\n");
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return -1;
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}
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memset (framebuf, ' ', width * height);
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// Set display-specific stuff..
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if (reboot)
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{
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LB216_reboot();
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sleep(4);
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reboot=0;
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}
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sleep(1);
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LB216_hidecursor();
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LB216_backlight(drvthis, backlight_brightness);
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return 0;
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}
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/////////////////////////////////////////////////////////////////
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// Clean-up
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//
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MODULE_EXPORT void
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LB216_close(Driver * drvthis)
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{
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close (fd);
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if (framebuf)
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free(framebuf);
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framebuf = NULL;
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}
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/////////////////////////////////////////////////////////////////
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// Returns the display width
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//
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MODULE_EXPORT int
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LB216_width (Driver *drvthis)
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{
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return width;
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}
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/////////////////////////////////////////////////////////////////
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// Returns the display height
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//
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MODULE_EXPORT int
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LB216_height (Driver *drvthis)
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{
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return height;
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}
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/////////////////////////////////////////////////////////////////
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// Clears the LCD screen
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//
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MODULE_EXPORT void
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LB216_clear (Driver * drvthis)
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{
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memset (framebuf, ' ', width * height);
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}
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/////////////////////////////////////////////////////////////////
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// Flushes the framebuffer to the LCD
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//
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MODULE_EXPORT void
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LB216_flush(Driver * drvthis)
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{
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char out[LCD_MAX_WIDTH * LCD_MAX_HEIGHT];
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int i,j;
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snprintf (out, sizeof(out), "%c%c", 254,80);
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write(fd, out, 2);
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for(j=0; j<height; j++) {
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if (j>=2) {
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snprintf (out, sizeof(out),"%c%c",254,148+(64*(j-2)));
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} else {
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snprintf (out, sizeof(out),"%c%c",254,128+(64*(j)));
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}
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write(fd, out, 2);
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for(i=0; i<width; i++) {
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write(fd, framebuf + i+(j*width), 1);
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}
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}
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}
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/////////////////////////////////////////////////////////////////
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// Prints a character on the lcd display, at position (x,y). The
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// upper-left is (1,1), and the lower right should be (16,2).
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//
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MODULE_EXPORT void
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LB216_chr(Driver * drvthis, int x, int y, char c)
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{
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//y--;
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// x--;
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//if(c < 32 && c >= 0) c += 128;
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// framebuf[(y*width) + x] = c;
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// char chr[1];
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// snprintf (chr, sizeof(chr), "%c", c);
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// Above two lines are incorrect (Joris)
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char chr[2];
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chr[0] = c;
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chr[1] = 0;
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LB216_string (drvthis, x, y, chr);
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}
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/////////////////////////////////////////////////////////////////
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// Sets the backlight on or off -- can be done quickly for
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// an intermediate brightness...
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//
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MODULE_EXPORT void
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LB216_backlight(Driver * drvthis, int on)
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{
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char out[4];
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if(on)
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{
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snprintf (out, sizeof(out), "%c%c", 254, 253);
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}
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else
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{
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snprintf (out, sizeof(out), "%c%c", 254, 252);
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}
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write(fd, out, 2);
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}
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/////////////////////////////////////////////////////////////////
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// Get rid of the blinking curson
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//
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static void LB216_hidecursor()
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{
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char out[4];
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snprintf (out, sizeof(out), "%c%c", 254,12);
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write(fd, out, 2);
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}
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/////////////////////////////////////////////////////////////////
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// Reset the display bios
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//
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static void LB216_reboot()
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{
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char out[4];
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snprintf (out, sizeof(out), "%c%c", 254,1);
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write(fd, out, 2);
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}
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MODULE_EXPORT void
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LB216_string (Driver * drvthis, int x, int y, char string[])
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{
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int i;
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char c;
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//printf("%d,%d:%s\n",x,y,string);
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y--;x--;
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for(i=0; string[i]; i++)
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{
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c = string[i];
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switch(c)
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{
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case '\254': c = '#'; break;
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}
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framebuf[(y*width) + x+i] = c;
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}
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}
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/////////////////////////////////////////////////////////////////
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// Sets up for vertical bars. Call before LB216->vbar()
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//
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MODULE_EXPORT void
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LB216_init_vbar(Driver * drvthis)
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{
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char a[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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};
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char b[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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char c[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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char d[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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char e[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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char f[] = {
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0,0,0,0,0,
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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char g[] = {
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0,0,0,0,0,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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if(custom!=vbar) {
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LB216_set_char(drvthis, 1,a);
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LB216_set_char(drvthis, 2,b);
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LB216_set_char(drvthis, 3,c);
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LB216_set_char(drvthis, 4,d);
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LB216_set_char(drvthis, 5,e);
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LB216_set_char(drvthis, 6,f);
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LB216_set_char(drvthis, 7,g);
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custom=vbar;
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}
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}
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/////////////////////////////////////////////////////////////////
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// Inits horizontal bars...
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//
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MODULE_EXPORT void
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LB216_init_hbar(Driver * drvthis)
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{
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char a[] = {
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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1,0,0,0,0,
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};
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char b[] = {
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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1,1,0,0,0,
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};
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char c[] = {
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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1,1,1,0,0,
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};
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char d[] = {
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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1,1,1,1,0,
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};
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char e[] = {
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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1,1,1,1,1,
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};
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if(custom!=hbar) {
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LB216_set_char(drvthis, 1,a);
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LB216_set_char(drvthis, 2,b);
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LB216_set_char(drvthis, 3,c);
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LB216_set_char(drvthis, 4,d);
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LB216_set_char(drvthis, 5,e);
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custom=hbar;
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}
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}
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/////////////////////////////////////////////////////////////////
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// Draws a vertical bar...
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//
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MODULE_EXPORT void
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LB216_vbar(Driver * drvthis, int x, int len)
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{
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char map[9] = {32, 1, 2, 3, 4, 5, 6, 7, 255 };
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int y;
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for(y=height; y > 0 && len>0; y--)
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{
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if(len >= cellheight) LB216_chr(drvthis, x, y, 255);
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else LB216_chr(drvthis, x, y, map[len]);
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len -= cellheight;
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}
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}
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/////////////////////////////////////////////////////////////////
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// Draws a horizontal bar to the right.
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//
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MODULE_EXPORT void
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LB216_hbar(Driver * drvthis, int x, int y, int len)
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{
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char map[7] = { 32, 1, 2, 3, 4, 5 };
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for(; x<=width && len>0; x++)
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{
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if(len >= cellwidth) LB216_chr(drvthis, x,y,map[5]);
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else LB216_chr(drvthis, x, y, map[len]);
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//printf ("%d,",len);
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len -= cellwidth;
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}
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// printf ("\n");
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}
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/////////////////////////////////////////////////////////////////
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// Sets a custom character from 0-7...
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//
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// For input, values > 0 mean "on" and values <= 0 are "off".
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//
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// The input is just an array of characters...
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//
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MODULE_EXPORT void
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LB216_set_char(Driver * drvthis, int n, char *dat)
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{
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char out[4];
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int row, col;
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int letter;
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if(n < 0 || n > 7) return;
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n=64+(8*n);
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if(!dat) return;
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snprintf (out, sizeof(out), "%c%c", 254, n);
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write(fd, out, 2);
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for(row=0; row<cellheight; row++)
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{
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letter = 1;
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for(col=0; col<cellwidth; col++)
|
|
{
|
|
letter <<= 1;
|
|
letter |= (dat[(row*cellwidth) + col] > 0);
|
|
}
|
|
snprintf (out, sizeof(out),"%c",letter);
|
|
write(fd, out, 1);
|
|
}
|
|
}
|
|
|
|
MODULE_EXPORT int
|
|
LB216_icon(Driver * drvthis, int x, int y, int icon)
|
|
{
|
|
static char heart_open[] = {
|
|
1, 1, 1, 1, 1,
|
|
1, 0, 1, 0, 1,
|
|
0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0,
|
|
1, 0, 0, 0, 1,
|
|
1, 1, 0, 1, 1,
|
|
1, 1, 1, 1, 1 };
|
|
|
|
static char heart_filled[] = {
|
|
1, 1, 1, 1, 1,
|
|
1, 0, 1, 0, 1,
|
|
0, 1, 0, 1, 0,
|
|
0, 1, 1, 1, 0,
|
|
0, 1, 1, 1, 0,
|
|
1, 0, 1, 0, 1,
|
|
1, 1, 0, 1, 1,
|
|
1, 1, 1, 1, 1 };
|
|
|
|
switch( icon )
|
|
{
|
|
case ICON_BLOCK_FILLED:
|
|
LB216_chr( drvthis, x, y, 255 );
|
|
break;
|
|
case ICON_HEART_FILLED:
|
|
LB216_set_char( drvthis, 0, heart_filled );
|
|
LB216_chr( drvthis, x, y, 0 );
|
|
break;
|
|
case ICON_HEART_OPEN:
|
|
LB216_set_char( drvthis, 0, heart_open );
|
|
LB216_chr( drvthis, x, y, 0 );
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|