forked from Imagelibrary/rtems
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* LCD Console Output Driver for CSBx37
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*/
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/*
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* COPYRIGHT (c) 1989-2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* Modified by Fernando Nicodemos <fgnicodemos@terra.com.br>
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* from NCB - Sistemas Embarcados Ltda. (Brazil)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bsp.h>
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#include <rtems/libio.h>
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#include <termios.h>
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#include <rtems/bspIo.h>
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#include <libchip/serial.h>
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#include <libchip/sersupp.h>
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#include "sed1356.h"
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/* static function prototypes */
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static int fbcons_first_open(int major, int minor, void *arg);
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static int fbcons_last_close(int major, int minor, void *arg);
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static int fbcons_read(int minor);
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static ssize_t fbcons_write(int minor, const char *buf, size_t len);
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static void fbcons_init(int minor);
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static void fbcons_write_polled(int minor, char c);
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static int fbcons_set_attributes(int minor, const struct termios *t);
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/* Pointers to functions for handling the UART. */
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const console_fns fbcons_fns =
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{
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libchip_serial_default_probe,
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fbcons_first_open,
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fbcons_last_close,
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fbcons_read,
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fbcons_write,
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fbcons_init,
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fbcons_write_polled, /* not used in this driver */
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fbcons_set_attributes,
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FALSE /* TRUE if interrupt driven, FALSE if not. */
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};
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/*********************************************************************/
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/* Functions called via callbacks (i.e. the ones in uart_fns */
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/*********************************************************************/
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/*
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* This is called the first time each device is opened. Since
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* the driver is polled, we don't have to do anything. If the driver
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* were interrupt driven, we'd enable interrupts here.
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*/
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static int fbcons_first_open(int major, int minor, void *arg)
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{
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/* printk( "Frame buffer -- first open\n" ); */
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return 0;
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}
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/*
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* This is called the last time each device is closed. Since
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* the driver is polled, we don't have to do anything. If the driver
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* were interrupt driven, we'd disable interrupts here.
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*/
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static int fbcons_last_close(int major, int minor, void *arg)
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{
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/* printk( "Frame buffer -- last close\n" ); */
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return 0;
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}
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/*
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* Read one character from UART.
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*
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* return -1 if there's no data, otherwise return
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* the character in lowest 8 bits of returned int.
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*/
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static int fbcons_read(int minor)
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{
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/* printk( "Frame buffer -- read\n" ); */
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return -1;
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}
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/*
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* Write buffer to LCD
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*
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* return 1 on success, -1 on error
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*/
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static ssize_t fbcons_write(int minor, const char *buf, size_t len)
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{
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int i;
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/* printk( "Frame buffer -- write\n" ); */
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for ( i=0 ; i<len ; i++ )
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sed_putchar( buf[i] );
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return 1;
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}
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/* Set up the LCD controller. */
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static void fbcons_init(int minor)
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{
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/* printk( "Initializing frame buffer\n" ); */
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sed_init();
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}
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/* This is used for putchark support */
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static void fbcons_write_polled(int minor, char c)
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{
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/* printk( "frame buffer -- write polled\n" ); */
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sed_putchar( c );
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}
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/* This is for setting baud rate, bits, etc. */
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static int fbcons_set_attributes(int minor, const struct termios *t)
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{
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/* printk( "frame buffer -- set attributes\n" ); */
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return 0;
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}
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