/* $Id$ * $URL$ * ************************************************************************** * 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 (for porting to IRLCD) * Copyright (C) 2005 Till Harbaum (for LCD2USB friver) * Copyright (C) 2005, 2006, 2007, 2008 The LCD4Linux Team * * 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 #include #include #include #include #include #include #include #include #include #include #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, }; 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 
/* $Id$
 * $URL$
 *
 * driver for serdisplib displays
 *
 * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
 * Copyright (C) 2005 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_serdisplib
 *
 */

#include "config.h"
#include "debug.h"		// verbose_level

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include <serdisplib/serdisp.h>

/* Fixme: This should be removed as soon as serdisp.h 
 * contains this macros
 */
#ifndef SERDISP_VERSION_GET_MAJOR
#define SERDISP_VERSION_GET_MAJOR(_c)  ((int)( (_c) >> 8 ))
#define SERDISP_VERSION_GET_MINOR(_c)  ((int)( (_c) & 0xFF ))
#endif


#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "plugin.h"
#include "drv.h"
#include "drv_generic_graphic.h"

#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif

static char Name[] = "serdisplib";

static serdisp_CONN_t *sdcd;
static serdisp_t *dd;

int NUMCOLS = 1;


/****************************************/
/***  hardware dependant functions    ***/
/****************************************/

static void drv_SD_blit(const int row, const int col, const int height, const int width)
{
    int r, c;
    RGBA p;

    for (r = row; r < row + height; r++) {
	for (c = col; c < col + width; c++) {
	    p = drv_generic_graphic_rgb(r, c);
	    // printf("blit (%d,%d) A%d.R%d.G%d.B%d\n", c, r, p.A, p.R, p.G, p.B);
	    serdisp_setcolour(dd, c, r, serdisp_pack2ARGB(0xff, p.R, p.G, p.B));
	}
    }

    serdisp_update(dd);
}


static int drv_SD_contrast(int contrast)
{
    if (contrast < 0)
	contrast = 0;
    if (contrast > MAX_CONTRASTSTEP)
	contrast = MAX_CONTRASTSTEP;

    serdisp_feature(dd, FEATURE_CONTRAST, contrast);

    return contrast;
}


static int drv_SD_backlight(int backlight)
{
    if (backlight < FEATURE_NO)
	backlight = FEATURE_NO;
    if (backlight > FEATURE_YES)
	backlight = FEATURE_YES;

    serdisp_feature(dd, FEATURE_BACKLIGHT, backlight);

    return backlight;
}


static int drv_SD_reverse(int reverse)
{
    if (reverse < FEATURE_NO)
	reverse = FEATURE_NO;
    if (reverse > FEATURE_YES)
	reverse = FEATURE_YES;

    serdisp_feature(dd, FEATURE_REVERSE, reverse);

    return reverse;
}


static int drv_SD_rotate(int rotate)
{
    if (rotate < 0)
	rotate = 0;
    if (rotate > 3)
	rotate = 3;

    serdisp_feature(dd, FEATURE_ROTATE, rotate);

    return rotate;
}



static int drv_SD_start(const char *section)
{
    long version;
    char *port, *model, *options, *s;
    int contrast, backlight, reverse, rotate;

    version = serdisp_getversioncode();
    info("%s: header  version %d.%d", Name, SERDISP_VERSION_MAJOR, SERDISP_VERSION_MINOR);
    info("%s: library version %d.%d", Name, SERDISP_VERSION_GET_MAJOR(version), SERDISP_VERSION_GET_MINOR(version));

    port = cfg_get(section, "Port", NULL);
    if (port == NULL || *port == '\0') {
	error("%s: no '%s.Port' entry from %s", Name, section, cfg_source());
	return -1;
    }

    /* opening the output device */
    sdcd = SDCONN_open(port);
    if (sdcd == NULL) {
	error("%s: open(%s) failed: %s", Name, port, sd_geterrormsg());
	return -1;
    }


    model = cfg_get(section, "Model", "");
    if (model == NULL || *model == '\0') {
	error("%s: no '%s.Model' entry from %s", Name, section, cfg_source());
	return -1;
    }
    info("%s: using model '%s'", Name, model);

    options = cfg_get(section, "Options", "");
    info("%s: using options '%s'", Name, options);

    /* opening and initialising the display */
    dd = serdisp_init(sdcd, model, options);
    if (dd == NULL) {
	error("%s: init(%s, %s, %s) failed: %s", Name, port, model, options, sd_geterrormsg());
	SDCONN_close(sdcd);
	return -1;
    }

    DROWS = serdisp_getheight(dd);
    DCOLS = serdisp_getwidth(dd);
    NUMCOLS = serdisp_getcolours(dd);
    info("%s: display size %dx%d, %d colors", Name, DCOLS, DROWS, NUMCOLS);

    XRES = -1;
    YRES = -1;
    s = cfg_get(section, "Font", "6x8");
    if (s == NULL || *s == '\0') {
	error("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
	return -1;
    }
    if (sscanf(s, "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
	error("%s: bad Font '%s' from %s", Name, s, cfg_source());
	return -1;
    }

    /* Fixme: provider other fonts someday... */
    if (XRES != 6 && YRES != 8) {
	error("%s: bad Font '%s' from %s (only 6x8 at the moment)", Name, s, cfg_source());
	return -1;
    }

    /* clear display */
    serdisp_clear(dd);

    if (cfg_number(section, "Contrast", 0, 0, MAX_CONTRASTSTEP, &contrast) > 0) {
	drv_SD_contrast(contrast);
    }

    if (cfg_number(section, "Backlight", 0, 0, 1, &backlight) > 0) {
	drv_SD_backlight(backlight);
    }

    if (cfg_number(section, "Reverse", 0, 0, 1, &reverse) > 0) {
	drv_SD_reverse(reverse);
    }

    if (cfg_number(section, "Rotate", 0, 0, 3, &rotate) > 0) {
	drv_SD_rotate(rotate);
    }

    return 0;
}


/****************************************/
/***            plugins               ***/
/****************************************/

static void plugin_contrast(RESULT * result, RESULT * arg1)
{
    double contrast;

    contrast = drv_SD_contrast(R2N(arg1));
    SetResult(&result, R_NUMBER, &contrast);
}


static void plugin_backlight(RESULT * result, RESULT * arg1)
{
    double backlight;

    backlight = drv_SD_backlight(R2N(arg1));
    SetResult(&result, R_NUMBER, &backlight);
}


static void plugin_reverse(RESULT * result, RESULT * arg1)
{
    double reverse;

    reverse = drv_SD_reverse(R2N(arg1));
    SetResult(&result, R_NUMBER, &reverse);
}


static void plugin_rotate(RESULT * result, RESULT * arg1)
{
    double rotate;

    rotate = drv_SD_rotate(R2N(arg1));
    SetResult(&result, R_NUMBER, &rotate);
}


/****************************************/
/***        exported functions        ***/
/****************************************/


/* list models */
int drv_SD_list(void)
{
    serdisp_display_t displaydesc;

    if (verbose_level > 0) {
	printf("  Supported displays:\n");
	displaydesc.dispname = "";
	printf("    display name     alias names           description\n");
	printf("    ---------------  --------------------  -----------------------------------\n");
	while (serdisp_nextdisplaydescription(&displaydesc)) {
	    printf("    %-15s  %-20s  %-35s\n", displaydesc.dispname, displaydesc.aliasnames, displaydesc.description);
	}
    } else {
	displaydesc.dispname = "";
	while (serdisp_nextdisplaydescription(&displaydesc)) {
	    printf("%s ", displaydesc.dispname);
	}
	printf("\n     (use -vl to see detailed list of serdisplib)");
    }

    return 0;
}


/* initialize driver & display */
int drv_SD_init(const char *section, const int quiet)
{
    int ret;

    info("%s: %s", Name, "$Rev$");

    /* real worker functions */
    drv_generic_graphic_real_blit = drv_SD_blit;

    /* start display */
    if ((ret = drv_SD_start(section)) != 0)
	return ret;

    /* initialize generic graphic driver */
    if ((ret = drv_generic_graphic_init(section, Name)) != 0)
	return ret;

    if (!quiet) {
	char buffer[40];
	qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
	if (drv_generic_graphic_greet(buffer, NULL)) {
	    sleep(3);
	    drv_generic_graphic_clear();
	}
    }

    /* register plugins */
    AddFunction("LCD::contrast", 1, plugin_contrast);
    AddFunction("LCD::backlight", 1, plugin_backlight);
    AddFunction("LCD::reverse", 1, plugin_reverse);
    AddFunction("LCD::rotate", 1, plugin_rotate);

    return 0;
}


/* close driver & display */
int drv_SD_quit(const int quiet)
{

    info("%s: shutting down.", Name);

    drv_generic_graphic_clear();

    if (!quiet) {
	drv_generic_graphic_greet("goodbye!", NULL);
    }

    drv_generic_graphic_quit();

    serdisp_quit(dd);

    return (0);
}


DRIVER drv_serdisplib = {
    .name = Name,
    .list = drv_SD_list,
    .init = drv_SD_init,
    .quit = drv_SD_quit,
};