From 9d0ba6ed3850aaf6f6d9ac60a040253f0b8e8371 Mon Sep 17 00:00:00 2001 From: reinelt Date: Fri, 4 Nov 2005 14:10:38 +0000 Subject: [lcd4linux @ 2005-11-04 14:10:38 by reinelt] drv_Sample and drv_LPH7508 git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@593 3ae390bd-cb1e-0410-b409-cd5a39f66f1f --- drv_LPH7508.c | 362 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 362 insertions(+) create mode 100644 drv_LPH7508.c (limited to 'drv_LPH7508.c') diff --git a/drv_LPH7508.c b/drv_LPH7508.c new file mode 100644 index 0000000..3e7aec2 --- /dev/null +++ b/drv_LPH7508.c @@ -0,0 +1,362 @@ +/* $Id: drv_LPH7508.c,v 1.1 2005/11/04 14:10:38 reinelt Exp $ + * + * driver for Pollin LPH7508 + * + * 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_LPH7508.c,v $ + * Revision 1.1 2005/11/04 14:10:38 reinelt + * drv_Sample and drv_LPH7508 + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_LPH7508 + * + */ + +#include "config.h" + +#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_graphic.h" +#include "drv_generic_parport.h" + +#ifdef WITH_DMALLOC +#include +#endif + +static char Name[] = "LPH7508"; + + +static unsigned char SIGNAL_RES; +static unsigned char SIGNAL_CS1; +static unsigned char SIGNAL_RW; +static unsigned char SIGNAL_A0; + +static int PAGES, SROWS, SCOLS; + +unsigned char *Buffer1, *Buffer2; + + +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ + +static void drv_L7_write_ctrl(const unsigned char data) +{ + /* Fixme: busy-check??? */ + + /* put data on DB1..DB8 */ + drv_generic_parport_data(data); + + /* CS1 = high, RW = low, A0 = low */ + drv_generic_parport_control(SIGNAL_CS1 | SIGNAL_RW | SIGNAL_A0, SIGNAL_CS1); + + /* Fixme: setup time? */ + ndelay(100); + + /* Fixme: toggle time? */ + drv_generic_parport_toggle(SIGNAL_CS1, 0, 100); + + ndelay(100); // Fixme +} + + +static void drv_L7_write_data(const unsigned char data) +{ + /* Fixme: busy-check??? */ + + /* put data on DB1..DB8 */ + drv_generic_parport_data(data); + + /* CS1 = high, RW = low, A0 = high */ + drv_generic_parport_control(SIGNAL_CS1 | SIGNAL_RW | SIGNAL_A0, SIGNAL_CS1 | SIGNAL_A0); + + /* Fixme: setup time? */ + ndelay(100); + + /* Fixme: toggle time? */ + drv_generic_parport_toggle(SIGNAL_CS1, 0, 100); + + ndelay(100); // Fixme +} + + +static void drv_L7_blit(const int row, const int col, const int height, const int width) +{ + int r, c; + + /* transfer layout to display framebuffer */ + for (r = row; r < row + height; r++) { + if (r >= SROWS) + break; + int p = r / 8; /* page */ + for (c = col; c < col + width; c++) { + if (c >= SCOLS) + break; + int a = p * SCOLS + c; /* RAM address */ + unsigned char m = 1 << (r % 8); /* bit mask */ + if (drv_generic_graphic_FB[r * LCOLS + c]) { + /* set bit */ + Buffer1[a] |= m; + } else { + /* clear bit */ + Buffer1[a] &= ~m; + } + } + } + + /* process display framebuffer */ + +} + + +static int drv_L7_start(const char *section) +{ + char *s; + + /* fixed size */ + DROWS = 64; + DCOLS = 100; + + /* SED1560 display RAM layout */ + PAGES = 8; + SROWS = PAGES * 8; + SCOLS = 166; + + 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; + } + + /* provide room for page 8 (symbols) */ + Buffer1 = malloc((PAGES + 1) * SCOLS); + if (Buffer1 == NULL) { + error("%s: framebuffer #1 could not be allocated: malloc() failed", Name); + return -1; + } + + Buffer2 = malloc((PAGES + 1) * SCOLS); + if (Buffer2 == NULL) { + error("%s: framebuffer #2 could not be allocated: malloc() failed", Name); + return -1; + } + + memset(Buffer1, 0, (PAGES + 1) * SCOLS * sizeof(*Buffer1)); + memset(Buffer2, 0, (PAGES + 1) * SCOLS * sizeof(*Buffer2)); + + if (drv_generic_parport_open(section, Name) != 0) { + error("%s: could not initialize parallel port!", Name); + return -1; + } + + if ((SIGNAL_RES = drv_generic_parport_hardwire_ctrl("RES", "INIT")) == 0xff) + return -1; + if ((SIGNAL_CS1 = drv_generic_parport_hardwire_ctrl("CS1", "STROBE")) == 0xff) + return -1; + if ((SIGNAL_RW = drv_generic_parport_hardwire_ctrl("RW", "SLCTIN")) == 0xff) + return -1; + if ((SIGNAL_A0 = drv_generic_parport_hardwire_ctrl("A0", "AUTOFD")) == 0xff) + return -1; + + /* rise RES, CS1, RW and A0 */ + drv_generic_parport_control(SIGNAL_RES | SIGNAL_CS1 | SIGNAL_RW | SIGNAL_A0, SIGNAL_RES | SIGNAL_CS1 | SIGNAL_RW | SIGNAL_A0); + + /* set direction: write */ + drv_generic_parport_direction(0); + + + /* reset display: lower RESET for 1 usec */ + drv_generic_parport_control(SIGNAL_RES, 0); + udelay(1); + drv_generic_parport_control(SIGNAL_RES, SIGNAL_RES); + udelay(1); + + /* just to make sure: send a software reset */ + drv_L7_write_ctrl(0xe2); + + /* initialize display */ + drv_L7_write_ctrl(0x40); /* Start Display Line = 0 */ + drv_L7_write_ctrl(0x20); /* reverse line driving release */ + drv_L7_write_ctrl(0xCC); /* OutputStatus = $0C, 102x64 */ + drv_L7_write_ctrl(0xA0); /* ADC = normal */ + drv_L7_write_ctrl(0xA9); /* LCD-Duty = 1/64 */ + drv_L7_write_ctrl(0xAB); /* LCD-Duty +1 (1/65, symbols) */ + drv_L7_write_ctrl(0x25); /* power supply on */ + udelay(100); + drv_L7_write_ctrl(0xED); /* power supply on completion */ + + /* clear display */ + /* Fixme drv_L7_clear(); */ + + 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_L7_list(void) +{ + printf("LPH7508"); + return 0; +} + + +/* initialize driver & display */ +int drv_L7_init(const char *section, const int quiet) +{ + WIDGET_CLASS wc; + int ret; + + /* real worker functions */ + drv_generic_graphic_real_blit = drv_L7_blit; + + /* start display */ + if ((ret = drv_L7_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 */ + /* none at the moment... */ + + + return 0; +} + + +/* close driver & display */ +int drv_L7_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(); + drv_generic_parport_close(); + + if (Buffer1) { + free(Buffer1); + Buffer1 = NULL; + } + + if (Buffer2) { + free(Buffer2); + Buffer2 = NULL; + } + + return (0); +} + + +DRIVER drv_LPH7508 = { + name:Name, + list:drv_L7_list, + init:drv_L7_init, + quit:drv_L7_quit, +}; -- cgit v1.2.3