/* $Id$ * $URL$ * * new style driver for T6963-based displays * * Copyright (C) 2003 Michael Reinelt * Copyright (C) 2004 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_T6963 * */ #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 "drv.h" #include "drv_generic_graphic.h" #include "drv_generic_parport.h" #ifdef WITH_DMALLOC #include #endif static char Name[] = "T6963"; static int Model; typedef struct { int type; char *name; } MODEL; static MODEL Models[] = { {0x01, "generic"}, {0xff, "Unknown"} }; /* font width of display */ static int CELL; /* text rows/columns */ static int TROWS, TCOLS; /* SingleScan or DualScan */ static int DualScan = 0; /* Timings */ static int T_ACC, T_OH, T_PW, T_DH, T_CDS; /* soft-wiring */ static unsigned char SIGNAL_CE; static unsigned char SIGNAL_CD; static unsigned char SIGNAL_RD; static unsigned char SIGNAL_WR; unsigned char *Buffer1, *Buffer2; static int bug = 0; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ /* perform normal status check */ static void drv_T6_status1(void) { int n; /* turn off data line drivers */ drv_generic_parport_direction(1); /* lower CE and RD */ drv_generic_parport_control(SIGNAL_CE | SIGNAL_RD, 0); /* Access Time */ ndelay(T_ACC); /* wait for STA0=1 and STA1=1 */ n = 0; do { rep_nop(); if (++n > 1000) { debug("hang in status1"); bug = 1; break; } } while ((drv_generic_parport_read() & 0x03) != 0x03); /* rise RD and CE */ drv_generic_parport_control(SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE); /* Output Hold Time */ ndelay(T_OH); /* turn on data line drivers */ drv_generic_parport_direction(0); } /* perform status check in "auto mode" */ static void drv_T6_status2(void) { int n; /* turn off data line drivers */ drv_generic_parport_direction(1); /* lower RD and CE */ drv_generic_parport_control(SIGNAL_RD | SIGNAL_CE, 0); /* Access Time */ ndelay(T_ACC); /* wait for STA3=1 */ n = 0; do { rep_nop(); if (++n > 1000) { debug("hang in status2"); bug = 1; break; } } while ((drv_generic_parport_read() & 0x08) != 0x08); /* rise RD and CE */ drv_generic_parport_control(SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE); /* Output Hold Time */ ndelay(T_OH); /* turn on data line drivers */ drv_generic_parport_direction(0); } static void drv_T6_write_cmd(const unsigned char cmd) { /* wait until the T6963 is idle */ drv_T6_status1(); /* put data on DB1..DB8 */ drv_generic_parport_data(cmd); /* lower WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, 0); /* Pulse width */ ndelay(T_PW); /* rise WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); /* Data Hold Time */ ndelay(T_DH); } static void drv_T6_write_data(const unsigned char data) { /* wait until the T6963 is idle */ drv_T6_status1(); /* put data on DB1..DB8 */ drv_generic_parport_data(data); /* lower C/D */ drv_generic_parport_control(SIGNAL_CD, 0); /* C/D Setup Time */ ndelay(T_CDS); /* lower WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, 0); /* Pulse Width */ ndelay(T_PW); /* rise WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); /* Data Hold Time */ ndelay(T_DH); /* rise CD */ drv_generic_parport_control(SIGNAL_CD, SIGNAL_CD); } static void drv_T6_write_auto(const unsigned char data) { /* wait until the T6963 is idle */ drv_T6_status2(); /* put data on DB1..DB8 */ drv_generic_parport_data(data); /* lower C/D */ drv_generic_parport_control(SIGNAL_CD, 0); /* C/D Setup Time */ ndelay(T_CDS); /* lower WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, 0); /* Pulse Width */ ndelay(T_PW); /* rise WR and CE */ drv_generic_parport_control(SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); /* Data Hold Time */ ndelay(T_DH); /* rise CD */ drv_generic_parport_control(SIGNAL_CD, SIGNAL_CD); } #if 0 /* not used */ static void drv_T6_send_byte(const unsigned char cmd, const unsigned char data) { drv_T6_write_data(data); drv_T6_write_cmd(cmd); } #endif static void drv_T6_send_word(const unsigned char cmd, const unsigned short data) { drv_T6_write_data(data & 0xff); drv_T6_write_data(data >> 8); drv_T6_write_cmd(cmd); } static void drv_T6_clear(const unsigned short addr, const int len) { int i; drv_T6_send_word(0x24, addr); /* Set Adress Pointer */ drv_T6_write_cmd(0xb0); /* Set Data Auto Write */ for (i = 0; i < len; i++) { drv_T6_write_auto(0x0); if (bug) { bug = 0; debug("bug occured at byte %d of %d", i, len); } } drv_T6_status2(); drv_T6_write_cmd(0xb2); /* Auto Reset */ } static void drv_T6_copy(const unsigned short addr, const unsigned char *data, const int len) { int i; drv_T6_send_word(0x24, addr); /* Set Adress Pointer */ drv_T6_write_cmd(0xb0); /* Set Data Auto Write */ for (i = 0; i < len; i++) { drv_T6_write_auto(*(data++)); if (bug) { bug = 0; debug("bug occured at byte %d of %d, addr=%d", i, len, addr); } } drv_T6_status2(); drv_T6_write_cmd(0xb2); /* Auto Reset */ } static void drv_T6_blit(const int row, const int col, const int height, const int width) { int r, c, a, b; int i, j, e, n; int base; for (r = row; r < row + height; r++) { for (c = col; c < col + width; c++) { unsigned char mask = 1 << (CELL - 1 - c % CELL); if (drv_generic_graphic_black(r, c)) { /* set bit */ Buffer1[(r * DCOLS + c) / CELL] |= mask; } else { /* clear bit */ Buffer1[(r * DCOLS + c) / CELL] &= ~mask; } } a = (r * DCOLS + col) / CELL; b = (r * DCOLS + col + width + CELL - 1) / CELL; for (i = a; i <= b; i++) { if (Buffer1[i] == Buffer2[i]) continue; for (j = i, e = 0; i <= b; i++) { if (Buffer1[i] == Buffer2[i]) { if (++e > 4) break; } else { e = 0; } } if (DualScan && r >= DROWS / 2) { base = 0x8200 - DCOLS * DROWS / 2 / CELL; } else { base = 0x0200; } n = i - j - e + 1; memcpy(Buffer2 + j, Buffer1 + j, n); drv_T6_copy(base + j, Buffer1 + j, n); } } } static int drv_T6_start(const char *section) { char *model, *s; model = cfg_get(section, "Model", "generic"); if (model != NULL && *model != '\0') { int i; for (i = 0; Models[i].type != 0xff; i++) { if (strcasecmp(Models[i].name, model) == 0) break; } if (Models[i].type == 0xff) { error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); return -1; } Model = i; } else { error("%s: empty '%s.Model' entry from %s", Name, section, cfg_source()); return -1; } /* read display size from config */ 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; } DROWS = -1; DCOLS = -1; if (sscanf(s, "%dx%d", &DCOLS, &DROWS) != 2 || DCOLS < 1 || DROWS < 1) { error("%s: bad Size '%s' from %s", Name, s, cfg_source()); return -1; } if (sscanf(s = cfg_get(section, "font", "6x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) { error("%s: bad %s.Font '%s' from %s", Name, section, s, cfg_source()); free(s); return -1; } free(s); /* get font width of display */ cfg_number(section, "Cell", 6, 5, 8, &CELL); TROWS = DROWS / 8; /* text rows */ TCOLS = DCOLS / CELL; /* text columns */ /* get DualScan mode */ cfg_number(section, "DualScan", 0, 0, 1, &DualScan); info("%s: %dx%d %sScan %d bits/cell", Name, DCOLS, DROWS, DualScan ? "Dual" : "Single", CELL); Buffer1 = malloc(TCOLS * DROWS); if (Buffer1 == NULL) { error("%s: framebuffer #1 could not be allocated: malloc() failed", Name); return -1; } Buffer2 = malloc(TCOLS * DROWS); if (Buffer2 == NULL) { error("%s: framebuffer #2 could not be allocated: malloc() failed", Name); return -1; } memset(Buffer1, 0, TCOLS * DROWS * sizeof(*Buffer1)); memset(Buffer2, 0, TCOLS * DROWS * sizeof(*Buffer2)); if (drv_generic_parport_open(section, Name) != 0) { error("%s: could not initialize parallel port!", Name); return -1; } /* soft-wiring */ if ((SIGNAL_CE = drv_generic_parport_wire_ctrl("CE", "STROBE")) == 0xff) return -1; if ((SIGNAL_CD = drv_generic_parport_wire_ctrl("CD", "SLCTIN")) == 0xff) return -1; if ((SIGNAL_RD = drv_generic_parport_wire_ctrl("RD", "AUTOFD")) == 0xff) return -1; if ((SIGNAL_WR = drv_generic_parport_wire_ctrl("WR", "INIT")) == 0xff) return -1; /* timings */ T_ACC = timing(Name, section, "ACC", 150, "ns"); /* Access Time */ T_OH = timing(Name, section, "OH", 50, "ns"); /* Output Hold Time */ T_PW = timing(Name, section, "PW", 80, "ns"); /* CE, RD, WR Pulse Width */ T_DH = timing(Name, section, "DH", 40, "ns"); /* Data Hold Time */ T_CDS = timing(Name, section, "CDS", 100, "ns"); /* C/D Setup Time */ /* rise CE, CD, RD and WR */ drv_gener
Installation Instructions
*************************

Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free
Software Foundation, Inc.

This file is free documentation; the Free Software Foundation gives
unlimited permission to copy, distribute and modify it.

Basic Installation
==================

These are generic installation instructions.

   The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation.  It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions.  Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, and a
file `config.log' containing compiler output (useful mainly for
debugging `configure').

   It can also use an optional file (typically called `config.cache'
and enabled with `--cache-file=config.cache' or simply `-C') that saves
the results of its tests to speed up reconfiguring.  (Caching is
disabled by default to prevent problems with accidental use of stale
cache files.)

   If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release.  If you are using the cache, and at
some point `config.cache' contains results you don't want to keep, you
may remove or edit it.

   The file `configure.ac' (or `configure.in') is used to create
`configure' by a program called `autoconf'.  You only need
`configure.ac' if you want to change it or regenerate `configure' using
a newer version of `autoconf'.

The simplest way to compile this package is:

  1. `cd' to the directory containing the package's source code and type
     `./configure' to configure the package for your system.  If you're
     using `csh' on an old version of System V, you might need to type
     `sh ./configure' instead to prevent `csh' from trying to execute
     `configure' itself.

     Running `configure' takes awhile.  While running, it prints some
     messages telling which features it is checking for.

  2. Type `make' to compile the package.

  3. Optionally, type `make check' to run any self-tests that come with
     the package.

  4. Type `make install' to install the programs and any data files and
     documentation.

  5. You can remove the program binaries and object files from the
     source code directory by typing `make clean'.  To also remove the
     files that `configure' created (so you can compile the package for
     a different kind of computer), type `make distclean'.  There is
     also a `make maintainer-clean' target, but that is intended mainly
     for the package's developers.  If you use it, you may have to get
     all sorts of other programs in order to regenerate files that came
     with the distribution.

Compilers and Options
=====================

Some systems require unusual options for compilation or linking that the
`configure' script does not know about.  Run `./configure --help' for
details on some of the pertinent environment variables.

   You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment.  Here
is an example:

     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix

   *Note Defining Variables::, for more details.

Compiling For Multiple Architectures
====================================

You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory.  To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'.  `cd' to the
directory where you want the object files and executables to go and run
the `configure' script.  `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.

   If you have to use a `make' that does not support the `VPATH'
variable, you have to compile the package for one architecture at a
time in the source code directory.  After you have installed the
package for one architecture, use `make distclean' before reconfiguring
for another architecture.

Installation Names
==================

By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc.  You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PREFIX'.

   You can specify separate installation prefixes for
architecture-specific files and architecture-independent files.  If you
give `configure' the option `--exec-prefix=PREFIX', the package will
use PREFIX as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.

   In addition, if you use an unusual directory layout you can give
options like `--bindir=DIR' to specify different values for particular
kinds of files.  Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.

   If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.

Optional Features
=================

Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System).  The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.

   For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.

Specifying the System Type
==========================

There may be some features `configure' cannot figure out automatically,
but needs to determine by the type of machine the package will run on.
Usually, assuming the package is built to be run on the _same_
architectures, `configure' can figure that out, but if it prints a
message saying it cannot guess the machine type, give it the
`--build=TYPE' option.  TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:

     CPU-COMPANY-SYSTEM

where SYSTEM can have one of these forms:

     OS KERNEL-OS

   See the file `config.sub' for the possible values of each field.  If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.

   If you are _building_ compiler tools for cross-compiling, you should
use the `--target=TYPE' option to select the type of system they will
produce code for.

   If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.

Sharing Defaults
================

If you want to set default values for `configure' scripts to share, you
can create a site shell script called `config.site' that gives default
values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists.  Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.

Defining Variables
==================

Variables not defined in a site shell script can be set in the
environment passed to `configure'.  However, some packages may run
configure again during the build, and the customized values of these
variables may be lost.  In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'.  For example:

     ./configure CC=/usr/local2/bin/gcc

will cause the specified gcc to be used as the C compiler (unless it is
overridden in the site shell script).

`configure' Invocation
======================

`configure' recognizes the following options to control how it operates.

`--help'
`-h'
     Print a summary of the options to `configure', and exit.

`--version'
`-V'
     Print the version of Autoconf used to generate the `configure'
     script, and exit.

`--cache-file=FILE'
     Enable the cache: use and save the results of the tests in FILE,
     traditionally `config.cache'.  FILE defaults to `/dev/null' to
     disable caching.

`--config-cache'
`-C'
     Alias for `--cache-file=config.cache'.

`--quiet'
`--silent'
`-q'
     Do not print messages saying which checks are being made.  To
     suppress all normal output, redirect it to `/dev/null' (any error
     messages will still be shown).

`--srcdir=DIR'
     Look for the package's source code in directory DIR.  Usually
     `configure' can determine that directory automatically.

`configure' also accepts some other, not widely useful, options.  Run
`configure --help' for more details.
generated by cgit v1.2.3 (git 2.39.1) at 2026-04-28 04:02:35 +0000