/* $Id: drv_picoLCDGraphic.c 840 2007-09-09 12:17:42Z michael $ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_picoLCDGraphic.c $ * * driver for picoLCD Graphic(256x64) displays from mini-box.com * * Copyright (C) 2005 Michael Reinelt * Copyright (C) 2005, 2006, 2007 The LCD4Linux Team * * Copyright (C) 2008 Nicu Pavel, Mini-Box.com * * 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_picoLCDGraphic * */ #include "config.h" #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_gpio.h" #include "drv_generic_keypad.h" #include "drv_generic_graphic.h" #define picoLCD_VENDOR 0x04d8 #define picoLCD_DEVICE 0xc002 #define OUT_REPORT_LED_STATE 0x81 #define OUT_REPORT_LCD_BACKLIGHT 0x91 #define OUT_REPORT_LCD_CONTRAST 0x92 #define OUT_REPORT_CMD 0x94 #define OUT_REPORT_DATA 0x95 #define OUT_REPORT_CMD_DATA 0x96 #define SCREEN_H 64 #define SCREEN_W 256 #if 1 #define DEBUG(x) debug("%s(): %s", __FUNCTION__, x); #else #define DEBUG(x) #endif static char Name[] = "picoLCDGraphic"; static unsigned char *pLG_framebuffer; /* used to display white text on black background or inverse */ unsigned char inverted = 0; static unsigned int gpo = 0; static char *Buffer; static char *BufPtr; static usb_dev_handle *lcd; extern int usb_debug; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static int drv_pLG_open(void) { struct usb_bus *busses, *bus; struct usb_device *dev; char driver[1024]; char product[1024]; char manufacturer[1024]; char serialnumber[1024]; int ret; lcd = NULL; info("%s: scanning for picoLCD 256x64...", Name); usb_debug = 0; usb_init(); usb_find_busses(); usb_find_devices(); busses = usb_get_busses(); for (bus = busses; bus; bus = bus->next) { for (dev = bus->devices; dev; dev = dev->next) { i

# UK, Reigate
# Auto-generated from http://www.dtg.org.uk/retailer/dtt_channels.html
# and http://www.ofcom.org.uk/static/reception_advice/index.asp.html
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 554000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
T 474000000 8MHz 2/3 NONE QAM64 2k 1/32 NONE
T 498000000 8MHz 2/3 NONE QAM64 2k 1/32 NONE
T 522000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
T 618167000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
T 834000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE

if (backlight >= 1) backlight = 200; cmd[1] = backlight; drv_pLG_send(cmd, 2); return backlight; } static int drv_pLG_gpo(int num, int val) { unsigned char cmd[2] = { 0x81 }; /* set GPO */ if (num < 0) num = 0; if (num > 7) num = 7; if (val < 0) val = 0; if (val > 1) val = 1; /* set led bit to 1 or 0 */ if (val) gpo |= 1 << num; else gpo &= ~(1 << num); cmd[1] = gpo; //drv_pLG_send(cmd, 2); return val; } static int drv_pLG_start(const char *section, const int quiet) { int rows = -1, cols = -1; int value; 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; } if (cfg_number(section, "Inverted", 0, 0, 1, &value) > 0) { info("Setting display inverted to %d", value); inverted = value; } DROWS = SCREEN_H; DCOLS = SCREEN_W; if (drv_pLG_open() < 0) { return -1; } /* Init the command buffer */ Buffer = (char *) malloc(1024); if (Buffer == NULL) { error("%s: coommand buffer could not be allocated: malloc() failed", Name); return -1; } BufPtr = Buffer; /* Init framebuffer buffer */ pLG_framebuffer = malloc(SCREEN_W * SCREEN_H * sizeof(unsigned char)); if (!pLG_framebuffer) return -1; DEBUG("allocated"); memset(pLG_framebuffer, 0, SCREEN_W * SCREEN_H); DEBUG("zeroed"); if (cfg_number(section, "Contrast", 0, 0, 255, &value) > 0) { info("Setting contrast to %d", value); drv_pLG_contrast(value); } if (cfg_number(section, "Backlight", 0, 0, 1, &value) > 0) { info("Setting backlight to %d", value); drv_pLG_backlight(value); } drv_pLG_clear(); /* clear display */ if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, SCREEN_W, SCREEN_H); if (drv_generic_graphic_greet(buffer, "http://www.picolcd.com")) { sleep(3); drv_pLG_clear(); } } return 0; } /****************************************/ /*** plugins ***/ /****************************************/ static void plugin_contrast(RESULT * result, RESULT * arg1) { double contrast; contrast = drv_pLG_contrast(R2N(arg1)); SetResult(&result, R_NUMBER, &contrast); } static void plugin_backlight(RESULT * result, RESULT * arg1) { double backlight; backlight = drv_pLG_backlight(R2N(arg1)); SetResult(&result, R_NUMBER, &backlight); } static void plugin_gpo(RESULT * result, RESULT * argv[]) { double gpo; gpo = drv_pLG_gpo(R2N(argv[0]), R2N(argv[1])); SetResult(&result, R_NUMBER, &gpo); } /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_text_draw(W) */ /* using drv_generic_text_icon_draw(W) */ /* using drv_generic_text_bar_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* list models */ int drv_pLG_list(void) { printf("picoLCD 256x64 Graphic LCD"); return 0; } /* initialize driver & display */ int drv_pLG_init(const char *section, const int quiet) { int ret; info("%s: %s", Name, "$Rev: 840 $"); info("PICOLCD Graphic initialization\n"); /* display preferences */ XRES = 6; /* pixel width of one char */ YRES = 8; /* pixel height of one char */ GPOS = 8; /* real worker functions */ drv_generic_graphic_real_blit = drv_pLG_blit; /* start display */ if ((ret = drv_pLG_start(section, quiet)) != 0) return ret; /* initialize generic graphic driver */ if ((ret = drv_generic_graphic_init(section, Name)) != 0) return ret; /* GPO's init */ if ((ret = drv_generic_gpio_init(section, Name)) != 0) return ret; /* register plugins */ AddFunction("LCD::contrast", -1, plugin_contrast); AddFunction("LCD::backlight", -1, plugin_backlight); AddFunction("LCD::gpo", -1, plugin_gpo); return 0; } /* close driver & display */ int drv_pLG_quit(const int quiet) { info("%s: shutting down.", Name); drv_generic_graphic_quit(); /* clear display */ drv_pLG_clear(); /* say goodbye... */ if (!quiet) { drv_generic_graphic_greet("goodbye!", NULL); } drv_pLG_close(); if (Buffer) { free(Buffer); BufPtr = NULL; } return (0); } DRIVER drv_picoLCDGraphic = { .name = Name, .list = drv_pLG_list, .init = drv_pLG_init, .quit = drv_pLG_quit, };