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/**
* @file
*
* @brief Generic console driver implementation.
*/
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <sys/cdefs.h>
#include <bsp.h>
#include <bsp/console-generic.h>
#include <rtems/console.h>
static const struct termios console_generic_termios = {
.c_cflag = CS8 | CREAD | CLOCAL | __CONCAT(B, BSP_DEFAULT_BAUD_RATE)
};
static void console_generic_char_out(char c)
{
int minor = (int) console_generic_minor;
const console_generic_callbacks *cb =
console_generic_info_table [minor].callbacks;
if (c == '\n') {
(*cb->poll_write)(minor, '\r');
}
(*cb->poll_write)(minor, c);
}
static int console_generic_char_in(void)
{
int minor = (int) console_generic_minor;
const console_generic_callbacks *cb =
console_generic_info_table [minor].callbacks;
return (*cb->poll_read)(minor);
}
static void console_generic_char_out_do_init(void)
{
int minor = (int) console_generic_minor;
const console_generic_callbacks *cb =
console_generic_info_table [minor].callbacks;
const struct termios *term = &console_generic_termios;
BSP_output_char = console_generic_char_out;
(*cb->termios_callbacks.setAttributes)(minor, term);
}
static void console_generic_char_out_init(char c)
{
console_generic_char_out_do_init();
console_generic_char_out(c);
}
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
const console_generic_info *info_table = console_generic_info_table;
rtems_device_minor_number count = console_generic_info_count;
rtems_device_minor_number console = console_generic_minor;
if (count <= 0) {
rtems_fatal_error_occurred(0xdeadbeef);
}
rtems_termios_initialize();
for (minor = 0; minor < count; ++minor) {
const console_generic_info *info = info_table + minor;
sc = rtems_io_register_name(info->device_path, major, minor);
if (sc != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(0xdeadbeef);
}
}
sc = rtems_io_register_name(CONSOLE_DEVICE_NAME, major, console);
if (sc != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(0xdeadbeef);
}
console_generic_char_out_do_init();
return sc;
}
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_device_minor_number count = console_generic_info_count;
if (minor < count) {
const console_generic_info *info = &console_generic_info_table [minor];
sc = rtems_termios_open(
major,
minor,
arg,
&info->callbacks->termios_callbacks
);
} else {
sc = RTEMS_INVALID_ID;
}
return sc;
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
return rtems_termios_close(arg);
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
return rtems_termios_read(arg);
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
return rtems_termios_write(arg);
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
return rtems_termios_ioctl(arg);
}
BSP_output_char_function_type BSP_output_char = console_generic_char_out_init;
BSP_polling_getchar_function_type BSP_poll_char = console_generic_char_in;
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