dtv-scan-tables.git - Digital TV scan tables

Age	Commit message (Collapse)	Author	Files	Lines
2006-11-16	Updates for Sweden from Richard Lithvall	Andrew de Quincey	1	-0/+3

/* $Id$ * $URL$ * * LED matrix driver for LCD4Linux * (see http://www.harbaum.org/till/ledmatrix for hardware) * * Copyright (C) 2006 Till Harbaum <till@harbaum.org> * * This file is part of LCD4Linux. * * LCD4Linux 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. * * LCD4Linux 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. * */ /* * * exported fuctions: * * struct DRIVER drv_LEDMatrix * */ /* * Options: * IPAddress */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <termios.h> #include <fcntl.h> #include <sys/time.h> /* include network specific headers */ #include <arpa/inet.h> #include <sys/socket.h> #include <netinet/in.h> #include <sys/select.h> #include <netdb.h> #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "plugin.h" #include "widget.h" #include "widget_text.h" #include "widget_icon.h" #include "widget_bar.h" #include "drv.h" #include "drv_generic_graphic.h" /* display command bytes */ #define DSP_CMD_ECHO 0 #define DSP_CMD_NOP 1 #define DSP_CMD_IMAGE 2 #define DSP_CMD_ACK 3 #define DSP_CMD_IR 4 #define DSP_CMD_BEEP 5 #define DSP_DEFAULT_PORT 4711 #define DSP_MEM (80 * 32 * 2 / 8) #define DEFAULT_X_OFFSET 1 /* with a font width of 6 */ static char Name[] = "LEDMatrix"; static char *IPAddress = NULL; static int sock = -1; static struct sockaddr_in dsp_addr; static unsigned char tx_buffer[DSP_MEM + 1]; static int port = DSP_DEFAULT_PORT; static void drv_LEDMatrix_blit(const int row, const int col, const int height, const int width) { int r, c, i; fd_set rfds; struct timeval tv; unsigned char reply[256]; struct sockaddr_in cli_addr; socklen_t fromlen; int ack = 0; int timeout = 10; for (r = row; r < row + height; r++) { for (c = col; c < col + width; c++) { /* LEDMATRIX supports three colors: 10b == green, 01b == red, 11b == amber */ unsigned char color = 0; RGBA p = drv_generic_graphic_rgb(r, c); if (p.G >= 128) color |= 0x80; if (p.R >= 128) color |= 0x40; /* ignore blue ... */ tx_buffer[1 + 20 * r + c / 4] &= ~(0xc0 >> (2 * (c & 3))); tx_buffer[1 + 20 * r + c / 4] |= color >> (2 * (c & 3)); } } /* scan entire display */ tx_buffer[0] = DSP_CMD_IMAGE; do { if ((sendto(sock, tx_buffer, DSP_MEM + 1, 0, (struct sockaddr *) &dsp_addr, sizeof(dsp_addr))) != DSP_MEM + 1) error("%s: sendto error on socket", Name); /* now wait for reply */ FD_ZERO(&rfds); FD_SET(sock, &rfds); tv.tv_sec = 0; tv.tv_usec = 100000; /* wait 1 sec for ack */ if ((i = select(FD_SETSIZE, &rfds, NULL, NULL, &tv)) < 0) { info("%s: Select error: %s", Name, strerror(errno)); } if (FD_ISSET(sock, &rfds)) { /* wait for ack */ fromlen = sizeof(dsp_addr); i = recvfrom(sock, reply, sizeof(reply), 0, (struct sockaddr *) &cli_addr, &fromlen); if (i < 0) { info("%s: Receive error: %s", Name, strerror(errno)); } else { if ((i == 2) && (reply[0] == DSP_CMD_ACK) && (reply[1] == DSP_CMD_IMAGE)) { ack = 1; } else if ((i > 1) && (reply[0] == DSP_CMD_IR)) { /* maybe used later: */ /* ir_receive(reply+1, i-1); */ } else { info("%s: Unexpected reply message", Name); } } } timeout--; } while ((!ack) && (timeout > 0)); if (timeout == 0) { error("%s: display reply timeout", Name); } } static int drv_LEDMatrix_start(const char *section) { char *s; struct sockaddr_in cli_addr; struct hostent *hp; int val; IPAddress = cfg_get(section, "IPAddress", NULL); if (IPAddress == NULL || *IPAddress == '\0') { error("%s: no '%s.IPAddress' entry from %s", Name, section, cfg_source()); return -1; } if (cfg_number(section, "Port", 0, 0, 65535, &val) > 0) { info("%s: port set to %d", Name, val); port = val; } else { info("%s: using default port %d", Name, port); } /* display size is hard coded */ DCOLS = 80; DROWS = 32; if (sscanf(s = cfg_get(section, "font", "6x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) { error("%s: bad %s.Font '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); /* contact display */ info("%s: contacting %s", Name, IPAddress); /* try to resolve as a hostname */ if ((hp = gethostbyname(IPAddress)) == NULL) { error("%s: unable to resolve hostname %s: %s", Name, IPAddress, strerror(errno)); return -1; } /* open datagram socket */ if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { error("%s: could not create socket: %s", Name, strerror(errno)); return -1; } memset((char *) &dsp_addr, 0, sizeof(dsp_addr)); dsp_addr.sin_family = AF_INET; dsp_addr.sin_addr.s_addr = *(int *) hp->h_addr; dsp_addr.sin_port = htons(port); cli_addr.sin_family = AF_INET; cli_addr.sin_addr.s_addr = htons(INADDR_ANY); cli_addr.sin_port = htons(port); if (bind(sock, (struct sockaddr *) &cli_addr, sizeof(cli_addr)) < 0) { error("%s: can't bind local address: %s", Name, strerror(errno)); return -1; } memset(tx_buffer, 0, sizeof(tx_buffer)); return 0; } /****************************************/ /*** plugins ***/ /****************************************/ /* none at the moment... */ /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_graphic_draw(W) */ /* using drv_generic_graphic_icon_draw(W) */ /* using drv_generic_graphic_bar_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* list models */ int drv_LEDMatrix_list(void) { printf("LEDMATRIX by Till Harbaum"); return 0; } /* initialize driver & display */ int drv_LEDMatrix_init(const char *section, const __attribute__ ((unused)) int quiet) { WIDGET_CLASS wc; int ret; /* real worker functions */ drv_generic_graphic_real_blit = drv_LEDMatrix_blit; /* start display */ if ((ret = drv_LEDMatrix_start(section)) != 0) return ret; /* initialize generic graphic driver */ if ((ret = drv_generic_graphic_init(section, Name)) != 0) return ret; /* register text widget */ wc = Widget_Text; wc.draw = drv_generic_graphic_draw; widget_register(&wc); /* register icon widget */ wc = Widget_Icon; wc.draw = drv_generic_graphic_icon_draw; widget_register(&wc); /* register bar widget */ wc = Widget_Bar; wc.draw = drv_generic_graphic_bar_draw; widget_register(&wc); /* register plugins */ /* none at the moment... */ return 0; } /* close driver & display */ int drv_LEDMatrix_quit(const __attribute__ ((unused)) int quiet) { info("%s: shutting down.", Name); drv_generic_graphic_quit(); if (sock != -1) close(sock); return (0); } DRIVER drv_LEDMatrix = { .name = Name, .list = drv_LEDMatrix_list, .init = drv_LEDMatrix_init, .quit = drv_LEDMatrix_quit, };