From 83a890a4c831fac8421cd34e6d7b7023e9b342c4 Mon Sep 17 00:00:00 2001 From: reinelt Date: Sat, 21 Jan 2006 13:26:44 +0000 Subject: [lcd4linux @ 2006-01-21 13:26:43 by reinelt] Logitech G-15 keyboard LCD driver from Dave Ingram git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@618 3ae390bd-cb1e-0410-b409-cd5a39f66f1f --- drv_G15.c | 413 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 413 insertions(+) create mode 100644 drv_G15.c (limited to 'drv_G15.c') diff --git a/drv_G15.c b/drv_G15.c new file mode 100644 index 0000000..60e650a --- /dev/null +++ b/drv_G15.c @@ -0,0 +1,413 @@ +/* $Id: drv_G15.c,v 1.1 2006/01/21 13:26:44 reinelt Exp $ + * + * Driver for Logitech G-15 keyboard LCD screen + * + * Copyright (C) 2006 Dave Ingram + * Copyright (C) 2005 Michael Reinelt + * Copyright (C) 2005 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. + * + * + * $Log: drv_G15.c,v $ + * Revision 1.1 2006/01/21 13:26:44 reinelt + * Logitech G-15 keyboard LCD driver from Dave Ingram + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_G15 + * + */ + +#include "config.h" + +#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_graphic.h" + +#define G15_VENDOR 0x046d +#define G15_DEVICE 0xc222 + +#if 0 +#define DEBUG(x) debug("%s(): %s", __FUNCTION__, x); +#else +#define DEBUG(x) +#endif + +static char Name[] = "G-15"; + +static usb_dev_handle *g15_lcd; + +static unsigned char *g15_image; + +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ + +static int drv_G15_open() +{ + struct usb_bus *bus; + struct usb_device *dev; + char dname[32]={0}; + + g15_lcd=NULL; + + info("%s: Scanning USB for G-15 keyboard...", Name); + + usb_init(); + usb_set_debug(0); + usb_find_busses(); + usb_find_devices(); + + for (bus=usb_get_busses(); bus; bus=bus->next) { + for (dev=bus->devices; dev; dev=dev->next) { + if ((g15_lcd=usb_open(dev))) { + if ((dev->descriptor.idVendor == G15_VENDOR) && + (dev->descriptor.idProduct == G15_DEVICE)) { + + // detach from the kernel if we need to + int retval=usb_get_driver_np(g15_lcd, 0, dname, 31); + if (retval==0 && strcmp(dname, "usbhid")==0) { + usb_detach_kernel_driver_np(g15_lcd, 0); + } + usb_set_configuration(g15_lcd,1); + usleep(100); + usb_claim_interface(g15_lcd,0); + return 0; + } else { + usb_close(g15_lcd); + } + } + } + } + + return -1; +} + + +static int drv_G15_close(void) +{ + usb_release_interface(g15_lcd, 0); + if (g15_lcd) + usb_close(g15_lcd); + + return 0; +} + + +static void drv_G15_send(const char *data, const unsigned int len) +{ + /* send data to the serial port is easy... */ + //drv_generic_serial_write(data, len); +} + +static void drv_G15_update_img() +{ + int i,j,k; + unsigned char *output=malloc(160*43*sizeof(unsigned char)); + + DEBUG("entered"); + if (!output) + return; + + DEBUG("memory allocated"); + memset(output, 0, 160*43); + DEBUG("memory set"); + output[0]=0x03; + DEBUG("first output set"); + + for (k=0; k<6; k++) { + for (i=0; i<160; i++) { + int maxj=(k==5)?3:8; + for (j=0; j 255) + contrast = 255; + + /* call a 'contrast' function */ + /* assume 0x04 to be the 'set contrast' command */ + cmd[0] = 0x04; + cmd[1] = contrast; + drv_G15_send(cmd, 2); + + return contrast; +} + + +/* start graphic display */ +static int drv_G15_start(const char *section) +{ + char *s; + //int contrast; + + DEBUG("entered"); + + /* read display size from config */ + DROWS = 160; + DCOLS = 43; + + DEBUG("display size set"); + + 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; + } + + XRES = -1; + YRES = -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; + } + + DEBUG("Finished config stuff"); + + DEBUG("allocating image buffer"); + /* you surely want to allocate a framebuffer or something... */ + g15_image=malloc(160*43*sizeof(unsigned char)); + if (!g15_image) + return -1; + DEBUG("allocated"); + memset(g15_image,0,160*43); + DEBUG("zeroed"); + + /* open communication with the display */ + DEBUG("opening display..."); + if (drv_G15_open() < 0) { + DEBUG("opening failed"); + return -1; + } + DEBUG("display open"); + + /* reset & initialize display */ + DEBUG("clearing display"); + drv_G15_update_img(); + DEBUG("done"); + + /* + if (cfg_number(section, "Contrast", 0, 0, 255, &contrast) > 0) { + drv_G15_contrast(contrast); + } + */ + + DEBUG("left"); + + return 0; +} + + +/****************************************/ +/*** plugins ***/ +/****************************************/ + +static void plugin_contrast(RESULT * result, RESULT * arg1) +{ + double contrast; + + contrast = drv_G15_contrast(R2N(arg1)); + SetResult(&result, R_NUMBER, &contrast); +} + + +/****************************************/ +/*** 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_G15_list(void) +{ + printf("generic"); + return 0; +} + + +/* initialize driver & display */ +int drv_G15_init(const char *section, const int quiet) +{ + WIDGET_CLASS wc; + int ret; + + DEBUG("entered"); + + /* real worker functions */ + drv_generic_graphic_real_blit = drv_G15_blit; + + /* start display */ + if ((ret = drv_G15_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 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 */ + //AddFunction("LCD::contrast", 1, plugin_contrast); + + DEBUG("left"); + + return 0; +} + + + +/* close driver & display */ +int drv_G15_quit(const int quiet) +{ + info("%s: shutting down.", Name); + + DEBUG("clearing display"); + /* clear display */ + drv_generic_graphic_clear(); + + DEBUG("saying goodbye"); + /* say goodbye... */ + if (!quiet) { + drv_generic_graphic_greet("goodbye!", NULL); + } + + DEBUG("generic_graphic_quit()"); + drv_generic_graphic_quit(); + + DEBUG("closing connection"); + drv_G15_close(); + + DEBUG("freeing image alloc"); + free(g15_image); + + return (0); +} + + +DRIVER drv_G15 = { + name:Name, + list:drv_G15_list, + init:drv_G15_init, + quit:drv_G15_quit, +}; -- cgit v1.2.3