dtv-scan-tables.git - dtv-scan-tables Debian packaging

diff options

Diffstat (limited to '')

0 files changed, 0 insertions, 0 deletions

/* $Id$ * $URL$ * ************************************************************************** * Driver for IRLCD : simple USB1.1 LCD + IR Receiver based on ATtiny2313 * ************************************************************************** * Hardware from http://www.xs4all.nl/~dicks/avr/usbtiny/index.html : * * [USBtiny LIRC compatible IR receiver and LCD controller] * * Ths driver is based on LCD2USB software by Till Harbaum, adapted to * * USBTiny protocol by Jean-Philippe Civade * ************************************************************************** * * The IR receiving par is compatible with IgrPlug protocol * and can be used from LIRC. * * Copyright (C) 2008 Jean-Philippe Civade <jp@civade.com> (for porting to IRLCD) * Copyright (C) 2005 Till Harbaum <till@harbaum.org> (for LCD2USB friver) * Copyright (C) 2005, 2006, 2007, 2008 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * 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_IRLCD * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <termios.h> #include <fcntl.h> #include <ctype.h> #include <sys/ioctl.h> #include <sys/time.h> #include <usb.h> #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "udelay.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_text.h" /* vid/pid of IRLCD */ #define LCD_USB_VENDOR 0x03EB /* for Atmel device */ #define LCD_USB_DEVICE 0x0002 /* Protocole IR/LCD */ #define LCD_INSTR 20 #define LCD_DATA 21 static char Name[] = "IRLCD"; static char *device_id = NULL, *bus_id = NULL; static usb_dev_handle *lcd; extern int got_signal; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static int drv_IRLCD_open(char *bus_id, char *device_id) { struct usb_bus *busses, *bus; struct usb_device *dev; lcd = NULL; info("%s: scanning USB for IRLCD interface ...", Name); if (bus_id != NULL) info("%s: scanning for bus id: %s", Name, bus_id); if (device_id != NULL) info("%s: scanning for device id: %s", Name, device_id); usb_set_debug(0); usb_init(); usb_find_busses(); usb_find_devices(); busses = usb_get_busses(); for (bus = busses; bus; bus = bus->next) { /* search this bus if no bus id was given or if this is the given bus id */ if (!bus_id || (bus_id && !strcasecmp(bus->dirname, bus_id))) { for (dev = bus->devices; dev; dev = dev->next) { /* search this device if no device id was given or if this is the given device id */ if (!device_id || (device_id && !strcasecmp(dev->filename, device_id))) { if ((dev->descriptor.idVendor == LCD_USB_VENDOR) && (dev->descriptor.idProduct == LCD_USB_DEVICE)) { info("%s: found IRLCD interface on bus %s device %s", Name, bus->dirname, dev->filename); lcd = usb_open(dev); if (usb_claim_interface(lcd, 0) < 0) { info("%s: WRNING! usb_claim_interface() failed!", Name); /* try to proceed anyway... */ } return 0; } } } } } return -1; } static int drv_IRLCD_close(void) { usb_release_interface(lcd, 0); usb_close(lcd); return 0; } /* Send a buffer to lcd via a control message */ static int drv_IRLCD_send(int request, unsigned char *buffer, int size) { if (usb_control_msg(lcd, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, /* bRequestType */ request, /* bRequest (LCD_INSTR / LCD_DATA) */ 0, /* wValue (0) */ 0, /* wIndex (0) */ (char *) buffer, /* pointer to destination buffer */ size, /* wLength */ 1000) < 0) { /* Timeout in millisectonds */ error("%s: USB request failed! Trying to reconnect device.", Name); usb_release_interface(lcd, 0); usb_close(lcd); /* try to close and reopen connection */ if (drv_IRLCD_open(bus_id, device_id) < 0) { error("%s: could not re-detect IRLCD USB LCD", Name); got_signal = -1; return -1; } /* and try to re-send command */ if (usb_control_msg(lcd, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, /* bRequestType */ request, /* bRequest (LCD_INSTR / LCD_DATA) */ 0, /* wValue (0) */ 0, /* wIndex (0) */ (char *) buffer, /* pointer to destination buffer */ size, /* wLength */ 1000) < 0) { /* Timeout in millisectonds */ error("%s: retried USB request failed, aborting!", Name); got_signal = -1; return -1; } info("%s: Device successfully reconnected.", Name); } return 0; } /* text mode displays only */ static void drv_IRLCD_clear(void) { unsigned char cmd[1]; cmd[0] = 0x01; /* clear */ drv_IRLCD_send(LCD_INSTR, cmd, 1); cmd[0] = 0x03; /* home */ drv_IRLCD_send(LCD_INSTR, cmd, 1); } /* text mode displays only */ static void drv_IRLCD_write(const int row, const int col, const char *data, int len) { unsigned char cmd[1]; static int pos; /* for 2 lines display */ pos = (row % 2) * 64 + (row / 2) * 20 + col; /* do the cursor positioning here */ cmd[0] = 0x80 | pos; /* do positionning */ drv_IRLCD_send(LCD_INSTR, cmd, 1); /* send string to the display */ drv_IRLCD_send(LCD_DATA, (unsigned char *) data, len); } /* text mode displays only */ static void drv_IRLCD_defchar(const int ascii, const unsigned char *matrix) { unsigned char cmd[10]; int i; /* Write to CGRAM */ cmd[0] = 0x40 | 8 * ascii; drv_IRLCD_send(LCD_INSTR, cmd, 1); /* send bitmap to the display */ for (i = 0; i < 8; i++) { cmd[i] = matrix[i] & 0x1f; } drv_IRLCD_send(LCD_DATA, cmd, 8); } /* start text mode display */ static int drv_IRLCD_start(const char *section) { int rows = -1, cols = -1; char *s; s = cfg_get(section, "Size", NULL); if (s == NULL || *s == '\0') { error("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); return -1; } if (sscanf(s, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) { error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } DROWS = rows; DCOLS = cols; /* bus id and device id are strings and not just intergers, since */ /* the windows port of libusb treats them as strings. And this way */ /* we keep windows compatibility ... just in case ... */ bus_id = cfg_get(section, "Bus", NULL); device_id = cfg_get(section, "Device", NULL); if (drv_IRLCD_open(bus_id, device_id) < 0) { error("%s: could not find a IRLC USB LCD", Name); return -1; } /* reset & initialize display */ drv_IRLCD_clear(); /* clear display */ return 0; } /****************************************/ /*** plugins ***/ /****************************************/ /* no plugins capabilities */ /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_text_draw(W) */ /* using drv_generic_text_icon_draw(W) */ /* using drv_generic_text_bar_draw(W) */ /* using drv_generic_gpio_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* list models */ int drv_IRLCD_list(void) { printf("USBtiny LCD controller"); return 0; } /* initialize driver & display */ int drv_IRLCD_init(const char *section, const int quiet) { WIDGET_CLASS wc; int asc255bug; int ret; info("%s: %s", Name, "$Rev$"); /* display preferences */ XRES = 5; /* pixel width of one char */ YRES = 8; /* pixel height of one char */ CHARS = 8; /* number of user-defineable characters */ CHAR0 = 0; /* ASCII of first user-defineable char */ GOTO_COST = 2; /* number of bytes a goto command requires */ /* real worker functions */ drv_generic_text_real_write = drv_IRLCD_write; drv_generic_text_real_defchar = drv_IRLCD_defchar; /* start display */ if ((ret = drv_IRLCD_start(section)) != 0) return ret; if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_text_greet(buffer, " www.civade.com")) { sleep(3); drv_IRLCD_clear(); } } /* initialize generic text driver */ if ((ret = drv_generic_text_init(section, Name)) != 0) return ret; /* initialize generic icon driver */ if ((ret = drv_generic_text_icon_init()) != 0) return ret; /* initialize generic bar driver */ if ((ret = drv_generic_text_bar_init(0)) != 0) return ret; /* add fixed chars to the bar driver */ /* most displays have a full block on ascii 255, but some have kind of */ /* an 'inverted P'. If you specify 'asc255bug 1 in the config, this */ /* char will not be used, but rendered by the bar driver */ cfg_number(section, "asc255bug", 0, 0, 1, &asc255bug); drv_generic_text_bar_add_segment(0, 0, 255, 32); /* ASCII 32 = blank */ if (!asc255bug) drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */ /* register text widget */ wc = Widget_Text; wc.draw = drv_generic_text_draw; widget_register(&wc); /* register icon widget */ wc = Widget_Icon; wc.draw = drv_generic_text_icon_draw; widget_register(&wc); /* register bar widget */ wc = Widget_Bar; wc.draw = drv_generic_text_bar_draw; widget_register(&wc); return 0; } /* close driver & display */ /* use this function for a text display */ int drv_IRLCD_quit(const int quiet) { info("%s: shutting down.", Name); drv_generic_text_quit(); /* clear display */ drv_IRLCD_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet("goodbye!", NULL); } debug("closing usb connection"); drv_IRLCD_close(); return (0); } /* use this one for a text display */ DRIVER drv_IRLCD = { .name = Name, .list = drv_IRLCD_list, .init = drv_IRLCD_init, .quit = drv_IRLCD_quit, };


context:
space:
mode: