summaryrefslogtreecommitdiffstats
path: root/bsps/arm/csb337/console/fbcons.c
blob: b53307436a3f2956ee2a84b9a1c8179b6c5b7f6a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* SPDX-License-Identifier: BSD-2-Clause */

/*
 *  LCD Console Output Driver for CSBx37
 */

/*
 *  COPYRIGHT (c) 1989-2014.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  Modified by Fernando Nicodemos <fgnicodemos@terra.com.br>
 *  from NCB - Sistemas Embarcados Ltda. (Brazil)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <bsp.h>
#include <rtems/libio.h>
#include <termios.h>

#include <rtems/bspIo.h>
#include <libchip/serial.h>
#include <libchip/sersupp.h>
#include "sed1356.h"

/* static function prototypes */
static int     fbcons_first_open(int major, int minor, void *arg);
static int     fbcons_last_close(int major, int minor, void *arg);
static int     fbcons_read(int minor);
static ssize_t fbcons_write(int minor, const char *buf, size_t len);
static void    fbcons_init(int minor);
static void    fbcons_write_polled(int minor, char c);
static int     fbcons_set_attributes(int minor, const struct termios *t);

/* Pointers to functions for handling the UART. */
const console_fns fbcons_fns =
{
  libchip_serial_default_probe,
  fbcons_first_open,
  fbcons_last_close,
  fbcons_read,
  fbcons_write,
  fbcons_init,
  fbcons_write_polled,   /* not used in this driver */
  fbcons_set_attributes,
  FALSE      /* TRUE if interrupt driven, FALSE if not. */
};
/*********************************************************************/
/* Functions called via callbacks (i.e. the ones in uart_fns */
/*********************************************************************/

/*
 * This is called the first time each device is opened. Since
 * the driver is polled, we don't have to do anything. If the driver
 * were interrupt driven, we'd enable interrupts here.
 */
static int fbcons_first_open(int major, int minor, void *arg)
{
  /* printk( "Frame buffer -- first open\n" ); */
  return 0;
}


/*
 * This is called the last time each device is closed.  Since
 * the driver is polled, we don't have to do anything. If the driver
 * were interrupt driven, we'd disable interrupts here.
 */
static int fbcons_last_close(int major, int minor, void *arg)
{
  /* printk( "Frame buffer -- last close\n" ); */
  return 0;
}


/*
 * Read one character from UART.
 *
 * return -1 if there's no data, otherwise return
 * the character in lowest 8 bits of returned int.
 */
static int fbcons_read(int minor)
{
  /* printk( "Frame buffer -- read\n" ); */
  return -1;
}


/*
 * Write buffer to LCD
 *
 * return 1 on success, -1 on error
 */
static ssize_t fbcons_write(int minor, const char *buf, size_t len)
{
  int i;

  /* printk( "Frame buffer -- write\n" ); */
  for ( i=0 ; i<len ; i++ )
    sed_putchar( buf[i] );

  return 1;
}


/* Set up the LCD controller. */
static void fbcons_init(int minor)
{
  /* printk( "Initializing frame buffer\n" ); */
  sed_init();
}

/* This is used for putchark support */
static void fbcons_write_polled(int minor, char c)
{
  /* printk( "frame buffer -- write polled\n" ); */
  sed_putchar( c );
}

/* This is for setting baud rate, bits, etc. */
static int fbcons_set_attributes(int minor, const struct termios *t)
{
  /* printk( "frame buffer -- set attributes\n" ); */
  return 0;
}