forked from Imagelibrary/rtems
9c13e528a0
The "powerpc/shared/console" code has the start-up console value fixed at 9600 baud. This changes the hard-wired constant "9600" in the code to the configuration setting "BSP_CONSOLE_BAUD" and adds configuration support in both the "waf" and the legacy configuration systems. Note that the VME BSPs beatnik, mvme3100, and mve5100 can be improved by adding a "mvmexxxx" BSP family. This configuration change, as well as future configuration changes, could then be made in a "grp.yml" file.
315 lines
8.7 KiB
C
315 lines
8.7 KiB
C
/*
|
|
* console.c -- console I/O package
|
|
*
|
|
* Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
|
|
*
|
|
* This code is based on the pc386 BSP console.c so the following
|
|
* copyright also applies :
|
|
*
|
|
* (C) Copyright 1997 -
|
|
* - NavIST Group - Real-Time Distributed Systems and Industrial Automation
|
|
*
|
|
* Till Straumann, <strauman@slac.stanford.edu>, 12/20/2001
|
|
* separate BSP specific stuff from generics...
|
|
*
|
|
* http://pandora.ist.utl.pt
|
|
*
|
|
* Instituto Superior Tecnico * Lisboa * PORTUGAL
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rtems.org/license/LICENSE.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <inttypes.h>
|
|
|
|
#include <bsp.h>
|
|
#include <bsp/irq.h>
|
|
#include <rtems/bspIo.h>
|
|
#include <rtems/libio.h>
|
|
#include <rtems/console.h>
|
|
#include <rtems/termiostypes.h>
|
|
#include <termios.h>
|
|
#include <bsp/uart.h>
|
|
#include <rtems/bspIo.h> /* printk */
|
|
|
|
/* Definitions for BSPConsolePort */
|
|
/*
|
|
* Possible value for console input/output :
|
|
* BSP_CONSOLE_PORT_CONSOLE
|
|
* BSP_UART_COM1
|
|
* BSP_UART_COM2
|
|
*/
|
|
int BSPConsolePort = BSP_CONSOLE_PORT;
|
|
|
|
int BSPBaseBaud = BSP_UART_BAUD_BASE;
|
|
|
|
/*
|
|
* TERMIOS_OUTPUT_MODE should be a 'bspopts.h/configure'-able option;
|
|
* we could even make it a link-time option (but that would require
|
|
* small changes)...
|
|
*/
|
|
#if defined(USE_POLLED_IO)
|
|
#define TERMIOS_OUTPUT_MODE TERMIOS_POLLED
|
|
#elif defined(USE_TASK_DRIVEN_IO)
|
|
#define TERMIOS_OUTPUT_MODE TERMIOS_TASK_DRIVEN
|
|
#else
|
|
#define TERMIOS_OUTPUT_MODE TERMIOS_IRQ_DRIVEN
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| External Prototypes
|
|
+--------------------------------------------------------------------------*/
|
|
|
|
static int conSetAttr(int minor, const struct termios *);
|
|
|
|
typedef struct TtySTblRec_ {
|
|
char *name;
|
|
rtems_irq_hdl isr;
|
|
} TtySTblRec, *TtySTbl;
|
|
|
|
static TtySTblRec ttyS[]={
|
|
{ "/dev/ttyS0",
|
|
#ifdef BSP_UART_IOBASE_COM1
|
|
BSP_uart_termios_isr_com1
|
|
#else
|
|
0
|
|
#endif
|
|
},
|
|
{ "/dev/ttyS1",
|
|
#ifdef BSP_UART_IOBASE_COM2
|
|
BSP_uart_termios_isr_com2
|
|
#else
|
|
0
|
|
#endif
|
|
},
|
|
};
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Console device driver INITIALIZE entry point.
|
|
+--------------------------------------------------------------------------+
|
|
| Initilizes the I/O console (keyboard + VGA display) driver.
|
|
+--------------------------------------------------------------------------*/
|
|
rtems_device_driver console_initialize(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
rtems_status_code status;
|
|
|
|
/*
|
|
* The video was initialized in the start.s code and does not need
|
|
* to be reinitialized.
|
|
*/
|
|
|
|
/*
|
|
* Set up TERMIOS
|
|
*/
|
|
rtems_termios_initialize();
|
|
|
|
/*
|
|
* Do device-specific initialization
|
|
*/
|
|
|
|
/* RTEMS calls this routine once with 'minor'==0; loop through
|
|
* all known instances...
|
|
*/
|
|
|
|
for (minor=0; minor < sizeof(ttyS)/sizeof(ttyS[0]); minor++) {
|
|
char *nm;
|
|
/*
|
|
* Skip ports (possibly not supported by BSP...) we have no ISR for
|
|
*/
|
|
if ( ! ttyS[minor].isr )
|
|
continue;
|
|
/*
|
|
* Register the device
|
|
*/
|
|
status = rtems_io_register_name ((nm=ttyS[minor].name), major, minor);
|
|
if ( RTEMS_SUCCESSFUL==status && BSPConsolePort == minor) {
|
|
printk("Registering /dev/console as minor %" PRIu32 " (==%s)\n",
|
|
minor,
|
|
ttyS[minor].name);
|
|
/* also register an alias */
|
|
status = rtems_io_register_name ( (nm="/dev/console"), major, minor);
|
|
}
|
|
|
|
if (status != RTEMS_SUCCESSFUL) {
|
|
printk("Error registering %s!\n",nm);
|
|
rtems_fatal_error_occurred (status);
|
|
}
|
|
}
|
|
|
|
return RTEMS_SUCCESSFUL;
|
|
} /* console_initialize */
|
|
|
|
#if !defined(USE_POLLED_IO)
|
|
static int console_first_open(int major, int minor, void *arg)
|
|
{
|
|
rtems_status_code status;
|
|
|
|
/* must not open a minor device we have no ISR for */
|
|
assert( minor>=0 && minor < sizeof(ttyS)/sizeof(ttyS[0]) && ttyS[minor].isr );
|
|
|
|
/* BSP_CONSOLE_BAUD-8-N-1 */
|
|
BSP_uart_init(minor, BSP_CONSOLE_BAUD, 0);
|
|
status = BSP_uart_install_isr(minor, ttyS[minor].isr);
|
|
if (!status) {
|
|
printk("Error installing serial console interrupt handler for '%s'!\n",
|
|
ttyS[minor].name);
|
|
rtems_fatal_error_occurred(status);
|
|
}
|
|
|
|
/*
|
|
* Pass data area info down to driver
|
|
*/
|
|
BSP_uart_termios_set(minor, ((rtems_libio_open_close_args_t *)arg)->iop->data1);
|
|
|
|
/* Enable interrupts on channel */
|
|
BSP_uart_intr_ctrl(minor, BSP_UART_INTR_CTRL_TERMIOS);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if !defined(USE_POLLED_IO)
|
|
static int console_last_close(int major, int minor, void *arg)
|
|
{
|
|
BSP_uart_remove_isr(minor, ttyS[minor].isr);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Console device driver OPEN entry point
|
|
+--------------------------------------------------------------------------*/
|
|
rtems_device_driver console_open(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
rtems_status_code status;
|
|
static rtems_termios_callbacks cb =
|
|
#if defined(USE_POLLED_IO)
|
|
{
|
|
NULL, /* firstOpen */
|
|
NULL, /* lastClose */
|
|
NULL, /* pollRead */
|
|
BSP_uart_termios_write_polled, /* write */
|
|
conSetAttr, /* setAttributes */
|
|
NULL, /* stopRemoteTx */
|
|
NULL, /* startRemoteTx */
|
|
TERMIOS_POLLED /* outputUsesInterrupts */
|
|
};
|
|
#else
|
|
{
|
|
console_first_open, /* firstOpen */
|
|
console_last_close, /* lastClose */
|
|
#ifdef USE_TASK_DRIVEN_IO
|
|
BSP_uart_termios_read_com, /* pollRead */
|
|
#else
|
|
NULL, /* pollRead */
|
|
#endif
|
|
BSP_uart_termios_write_com, /* write */
|
|
conSetAttr, /* setAttributes */
|
|
NULL, /* stopRemoteTx */
|
|
NULL, /* startRemoteTx */
|
|
TERMIOS_OUTPUT_MODE /* outputUsesInterrupts */
|
|
};
|
|
#endif
|
|
|
|
status = rtems_termios_open (major, minor, arg, &cb);
|
|
|
|
if (status != RTEMS_SUCCESSFUL) {
|
|
printk("Error opening console device\n");
|
|
return status;
|
|
}
|
|
|
|
return RTEMS_SUCCESSFUL;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Console device driver CLOSE entry point
|
|
+--------------------------------------------------------------------------*/
|
|
rtems_device_driver
|
|
console_close(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
rtems_device_driver res = RTEMS_SUCCESSFUL;
|
|
|
|
res = rtems_termios_close (arg);
|
|
|
|
return res;
|
|
} /* console_close */
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Console device driver READ entry point.
|
|
+--------------------------------------------------------------------------+
|
|
| Read characters from the I/O console. We only have stdin.
|
|
+--------------------------------------------------------------------------*/
|
|
rtems_device_driver console_read(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
return rtems_termios_read (arg);
|
|
} /* console_read */
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Console device driver WRITE entry point.
|
|
+--------------------------------------------------------------------------+
|
|
| Write characters to the I/O console. Stderr and stdout are the same.
|
|
+--------------------------------------------------------------------------*/
|
|
rtems_device_driver console_write(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
return rtems_termios_write (arg);
|
|
} /* console_write */
|
|
|
|
/*
|
|
* Handle ioctl request.
|
|
*/
|
|
rtems_device_driver console_control(
|
|
rtems_device_major_number major,
|
|
rtems_device_minor_number minor,
|
|
void *arg
|
|
)
|
|
{
|
|
/* does the BSP support break callbacks ? */
|
|
#if defined(BIOCSETBREAKCB) && defined(BIOCGETBREAKCB)
|
|
rtems_libio_ioctl_args_t *ioa=arg;
|
|
switch (ioa->command) {
|
|
case BIOCSETBREAKCB: return BSP_uart_set_break_cb(minor, ioa);
|
|
case BIOCGETBREAKCB: return BSP_uart_get_break_cb(minor, ioa);
|
|
default: break;
|
|
}
|
|
#endif
|
|
return rtems_termios_ioctl (arg);
|
|
}
|
|
|
|
static int conSetAttr(
|
|
int minor,
|
|
const struct termios *t
|
|
)
|
|
{
|
|
rtems_termios_baud_t baud;
|
|
|
|
baud = rtems_termios_baud_to_number(t->c_ospeed);
|
|
if ( baud > 115200 )
|
|
rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR);
|
|
|
|
BSP_uart_set_baud(minor, baud);
|
|
|
|
return 0;
|
|
}
|