#include #include #include #include #include #include #include #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_NCURSES_H # include #else # include #endif #include "shared/str.h" #include "shared/debug.h" #include "lcd.h" #include "lb216.h" #include "drv_base.h" #include "render.h" static int custom=0; typedef enum { hbar = 1, vbar = 2, bign = 4, beat = 8 } custom_type; static int fd; static void LB216_hidecursor(); static void LB216_reboot(); // TODO: Get rid of this variable? lcd_logical_driver *LB216; // TODO: Get the frame buffers working right ///////////////////////////////////////////////////////////////// // Opens com port and sets baud correctly... // int LB216_init(lcd_logical_driver *driver, char *args) { char *argv[64]; int argc; struct termios portset; int i; int tmp; int reboot=0; char device[256] = "/dev/lcd"; int speed=B9600; LB216 = driver; //debug("LB216_init: Args(all): %s\n", args); argc = get_args(argv, args, 64); /* for(i=0; i argc) { fprintf(stderr, "LB216_init: %s requires an argument\n", argv[i]); return -1; } strcpy(device, argv[++i]); } else if(0 == strcmp(argv[i], "-b") || 0 == strcmp(argv[i], "--brightness")) { if(i + 1 > argc) { fprintf(stderr, "LB216_init: %s requires an argument\n", argv[i]); return -1; } tmp = atoi(argv[++i]); if((tmp < 0) || (tmp > 255)){ fprintf(stderr, "LB216_init: %s argument must between 0 and 255. Using default value.\n", argv[i]); } else backlight_brightness = tmp; } else if(0 == strcmp(argv[i], "-s") || 0 == strcmp(argv[i], "--speed")) { if(i + 1 > argc) { fprintf(stderr, "LB216_init: %s requires an argument\n", argv[i]); return -1; } tmp = atoi(argv[++i]); if(tmp==2400) speed=B2400; else if(tmp==9600) speed=B9600; else { fprintf(stderr, "LB216_init: %s argument must be 2400, or 9600. Using default value.\n", argv[i]); } } else if(0 == strcmp(argv[i], "-h") || 0 == strcmp(argv[i], "--help")) { printf("LCDproc LB216 LCD driver\n" "\t-d\t--device\tSelect the output device to use [/dev/lcd]\n" "\t-t\t--type\t\tSelect the LCD type (size) [16x2]\n" "\t-b\t--brightness\tSet the initial brightness [255]\n" "\t-s\t--speed\t\tSet the communication speed [9600]\n" "\t-r\t--reboot\tReinitialize the LCD's BIOS\n" "\t-h\t--help\t\tShow this help information\n"); return -1; } else if(0 == strcmp(argv[i], "-r") || 0 == strcmp(argv[i], "--reboot")) { printf("LCDd: rebooting LB216 LCD...\n"); reboot=1; } else { printf("Invalid parameter: %s\n", argv[i]); } } // Set up io port correctly, and open it... fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY); if (fd == -1) { fprintf(stderr, "LB216_init: failed (%s)\n", strerror(errno)); return -1; } //else fprintf(stderr, "LB216_init: opened device %s\n", device); tcgetattr(fd, &portset); // We use RAW mode #ifdef HAVE_CFMAKERAW // The easy way cfmakeraw( &portset ); #else // The hard way portset.c_iflag &= ~( IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON ); portset.c_oflag &= ~OPOST; portset.c_lflag &= ~( ECHO | ECHONL | ICANON | ISIG | IEXTEN ); portset.c_cflag &= ~( CSIZE | PARENB | CRTSCTS ); portset.c_cflag |= CS8 | CREAD | CLOCAL ; #endif // Set port speed cfsetospeed (&portset, speed); cfsetispeed (&portset, B0); // Do it... tcsetattr(fd, TCSANOW, &portset); // Set display-specific stuff.. if(reboot) { LB216_reboot(); sleep(4); reboot=0; } sleep(1); LB216_hidecursor(); LB216_backlight(backlight_brightness); if(!driver->framebuf) { fprintf(stderr, "LB216_init: No frame buffer.\n"); driver->close(); return -1; } // Set the functions the driver supports... driver->clear = drv_base_clear; driver->string = LB216_string; driver->chr = LB216_chr; driver->vbar = LB216_vbar; driver->init_vbar = LB216_init_vbar; driver->hbar = LB216_hbar; driver->init_hbar = LB216_init_hbar; driver->num = NULL; driver->init_num = NULL; driver->init = LB216_init; driver->close = LB216_close; driver->flush = LB216_flush; driver->flush_box = NULL; driver->contrast = NULL; driver->backlight = LB216_backlight; driver->set_char = LB216_set_char; driver->icon = LB216_icon; driver->draw_frame = LB216_draw_frame; lcd.cellwid = 5; lcd.cellhgt = 8; debug("LB216: foo!\n"); return fd; } ///////////////////////////////////////////////////////////////// // Clean-up // void LB216_close() { close (fd); if(LB216->framebuf) free(LB216->framebuf); LB216->framebuf = NULL; } void LB216_flush() { LB216_draw_frame(lcd.framebuf); } ///////////////////////////////////////////////////////////////// // Prints a character on the lcd display, at position (x,y). The // upper-left is (1,1), and the lower right should be (16,2). // void LB216_chr(int x, int y, char c) { //y--; // x--; //if(c < 32 && c >= 0) c += 128; // lcd.framebuf[(y*lcd.wid) + x] = c; char chr[1]; snprintf (chr, sizeof(chr), "%c", c); LB216_string (x, y, chr); } ///////////////////////////////////////////////////////////////// // Sets the backlight on or off -- can be done quickly for // an intermediate brightness... // void LB216_backlight(int on) { char out[4]; if(on) { snprintf (out, sizeof(out), "%c%c", 254, 253); } else { snprintf (out, sizeof(out), "%c%c", 254, 252); } write(fd, out, 2); } ///////////////////////////////////////////////////////////////// // Get rid of the blinking curson // static void LB216_hidecursor() { char out[4]; snprintf (out, sizeof(out), "%c%c", 254,12); write(fd, out, 2); } ///////////////////////////////////////////////////////////////// // Reset the display bios // static void LB216_reboot() { char out[4]; snprintf (out, sizeof(out), "%c%c", 254,1); write(fd, out, 2); } ///////////////////////////////////////////////////////////// // Blasts a single frame onscreen, to the lcd... // // Input is a character array, sized lcd.wid*lcd.hgt // void LB216_draw_frame(char *dat) { char out[LCD_MAX_WIDTH * LCD_MAX_HEIGHT]; int i,j; if(!dat) return; snprintf (out, sizeof(out), "%c%c", 254,80); write(fd, out, 2); for(j=0; j=2) { snprintf (out, sizeof(out),"%c%c",254,148+(64*(j-2))); } else { snprintf (out, sizeof(out),"%c%c",254,128+(64*(j))); } write(fd, out, 2); for(i=0; i 0 && len>0; y--) { if(len >= lcd.cellhgt) LB216_chr(x, y, 255); else LB216_chr(x, y, map[len]); len -= lcd.cellhgt; } } ///////////////////////////////////////////////////////////////// // Draws a horizontal bar to the right. // void LB216_hbar(int x, int y, int len) { char map[7] = { 32, 1, 2, 3, 4, 5 }; for(; x<=lcd.wid && len>0; x++) { if(len >= lcd.cellwid) LB216_chr(x,y,map[5]); else LB216_chr(x, y, map[len]); //printf ("%d,",len); len -= lcd.cellwid; } // printf ("\n"); } ///////////////////////////////////////////////////////////////// // Sets a custom character from 0-7... // // For input, values > 0 mean "on" and values <= 0 are "off". // // The input is just an array of characters... // void LB216_set_char(int n, char *dat) { char out[4]; int row, col; int letter; if(n < 0 || n > 7) return; n=64+(8*n); if(!dat) return; snprintf (out, sizeof(out), "%c%c", 254, n); write(fd, out, 2); for(row=0; row 0); } snprintf (out, sizeof(out),"%c",letter); write(fd, out, 1); } } void LB216_icon(int which, char dest) { char icons[3][8*8] = { { 1,1,1,1,1, // Empty Heart 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, }, { 1,1,1,1,1, // Filled Heart 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, }, { 0,0,0,0,0, // Ellipsis 0,0,0,0,0, 0,0,0,0,0, 0,0,0,0,0, 0,0,0,0,0, 0,0,0,0,0, 0,0,0,0,0, 1,0,1,0,1, }, }; if(custom==bign) custom=beat; LB216_set_char(dest, &icons[which][0]); }