forked from Imagelibrary/rtems
2008-12-04 Jukka Pietarinen <jukka.pietarinen@mrf.fi>
* ChangeLog, Makefile.am, README, acinclude.m4, configure.ac, shared/clock/ckinit.c, shared/clock/clock.h, shared/console/console.c, shared/console/uart.c, shared/console/uart.h, shared/start/start.S, shared/startup/bspstart.c, shared/startup/setvec.c, shared/timer/timer.c, shared/tsmac/dp83848phy.h, shared/tsmac/tsmac.c, shared/tsmac/tsmac.h: New files.
This commit is contained in:
Joel Sherrill
226
c/src/lib/libbsp/lm32/shared/console/console.c
Normal file
226
c/src/lib/libbsp/lm32/shared/console/console.c
Normal file
@@ -0,0 +1,226 @@
|
||||
/*
|
||||
* Console driver for Lattice Mico32 (lm32).
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
* Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
|
||||
* Micro-Research Finland Oy
|
||||
*/
|
||||
|
||||
#define NO_BSP_INIT
|
||||
|
||||
#include <rtems.h>
|
||||
#include <bsp.h>
|
||||
#include <rtems/libio.h>
|
||||
|
||||
void BSP_uart_polled_write(char ch);
|
||||
char BSP_uart_polled_read( void );
|
||||
char BSP_uart_is_character_ready(char *ch);
|
||||
|
||||
/* console_initialize
|
||||
*
|
||||
* This routine initializes the console IO driver.
|
||||
*
|
||||
* Input parameters: NONE
|
||||
*
|
||||
* Output parameters: NONE
|
||||
*
|
||||
* Return values:
|
||||
*/
|
||||
|
||||
rtems_device_driver console_initialize(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void *arg
|
||||
)
|
||||
{
|
||||
rtems_status_code status;
|
||||
|
||||
printk("console_initialize\n");
|
||||
|
||||
status = rtems_io_register_name(
|
||||
"/dev/console",
|
||||
major,
|
||||
(rtems_device_minor_number) 0
|
||||
);
|
||||
|
||||
if (status != RTEMS_SUCCESSFUL)
|
||||
rtems_fatal_error_occurred(status);
|
||||
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
/* is_character_ready
|
||||
*
|
||||
* This routine returns TRUE if a character is available.
|
||||
*
|
||||
* Input parameters: NONE
|
||||
*
|
||||
* Output parameters: NONE
|
||||
*
|
||||
* Return values:
|
||||
*/
|
||||
|
||||
bool is_character_ready(
|
||||
char *ch
|
||||
)
|
||||
{
|
||||
return BSP_uart_is_character_ready(ch);
|
||||
}
|
||||
|
||||
/* inbyte
|
||||
*
|
||||
* This routine reads a character from the SOURCE.
|
||||
*
|
||||
* Input parameters: NONE
|
||||
*
|
||||
* Output parameters: NONE
|
||||
*
|
||||
* Return values:
|
||||
* character read from SOURCE
|
||||
*/
|
||||
|
||||
char inbyte( void )
|
||||
{
|
||||
/*
|
||||
* If polling, wait until a character is available.
|
||||
*/
|
||||
|
||||
return (char) BSP_uart_polled_read();
|
||||
}
|
||||
|
||||
/* outbyte
|
||||
*
|
||||
* This routine transmits a character out the SOURCE. It may support
|
||||
* XON/XOFF flow control.
|
||||
*
|
||||
* Input parameters:
|
||||
* ch - character to be transmitted
|
||||
*
|
||||
* Output parameters: NONE
|
||||
*/
|
||||
|
||||
void outbyte(
|
||||
char ch
|
||||
)
|
||||
{
|
||||
/*
|
||||
* If polling, wait for the transmitter to be ready.
|
||||
* Check for flow control requests and process.
|
||||
* Then output the character.
|
||||
*/
|
||||
|
||||
BSP_uart_polled_write(ch);
|
||||
}
|
||||
|
||||
/*
|
||||
* Open entry point
|
||||
*/
|
||||
|
||||
rtems_device_driver console_open(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void * arg
|
||||
)
|
||||
{
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Close entry point
|
||||
*/
|
||||
|
||||
rtems_device_driver console_close(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void * arg
|
||||
)
|
||||
{
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
/*
|
||||
* read bytes from the serial port. We only have stdin.
|
||||
*/
|
||||
|
||||
rtems_device_driver console_read(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void * arg
|
||||
)
|
||||
{
|
||||
rtems_libio_rw_args_t *rw_args;
|
||||
char *buffer;
|
||||
int maximum;
|
||||
int count = 0;
|
||||
|
||||
rw_args = (rtems_libio_rw_args_t *) arg;
|
||||
|
||||
buffer = rw_args->buffer;
|
||||
maximum = rw_args->count;
|
||||
|
||||
for (count = 0; count < maximum; count++) {
|
||||
buffer[ count ] = inbyte();
|
||||
if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
|
||||
buffer[ count++ ] = '\n';
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
rw_args->bytes_moved = count;
|
||||
return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
|
||||
}
|
||||
|
||||
/*
|
||||
* write bytes to the serial port. Stdout and stderr are the same.
|
||||
*/
|
||||
|
||||
rtems_device_driver console_write(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void * arg
|
||||
)
|
||||
{
|
||||
int count;
|
||||
int maximum;
|
||||
rtems_libio_rw_args_t *rw_args;
|
||||
char *buffer;
|
||||
|
||||
rw_args = (rtems_libio_rw_args_t *) arg;
|
||||
|
||||
buffer = rw_args->buffer;
|
||||
maximum = rw_args->count;
|
||||
|
||||
for (count = 0; count < maximum; count++) {
|
||||
if ( buffer[ count ] == '\n') {
|
||||
outbyte('\r');
|
||||
}
|
||||
outbyte( buffer[ count ] );
|
||||
}
|
||||
|
||||
rw_args->bytes_moved = maximum;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* IO Control entry point
|
||||
*/
|
||||
|
||||
rtems_device_driver console_control(
|
||||
rtems_device_major_number major,
|
||||
rtems_device_minor_number minor,
|
||||
void * arg
|
||||
)
|
||||
{
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
BSP_output_char_function_type BSP_output_char = BSP_uart_polled_write;
|
||||
BSP_polling_getchar_function_type BSP_poll_char = BSP_uart_polled_read;
|
||||
72
c/src/lib/libbsp/lm32/shared/console/uart.c
Normal file
72
c/src/lib/libbsp/lm32/shared/console/uart.c
Normal file
@@ -0,0 +1,72 @@
|
||||
/*
|
||||
* Uart driver for Lattice Mico32 (lm32) UART
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
* Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
|
||||
* Micro-Research Finland Oy
|
||||
*/
|
||||
|
||||
#include "../include/system_conf.h"
|
||||
#include "uart.h"
|
||||
#include <rtems/libio.h>
|
||||
|
||||
static inline int uartread(unsigned int reg)
|
||||
{
|
||||
return *((int*)(UART_BASE_ADDRESS + reg));
|
||||
}
|
||||
|
||||
static inline void uartwrite(unsigned int reg, int value)
|
||||
{
|
||||
*((int*)(UART_BASE_ADDRESS + reg)) = value;
|
||||
}
|
||||
|
||||
void BSP_uart_init(int baud)
|
||||
{
|
||||
/* Disable UART interrupts */
|
||||
uartwrite(LM32_UART_IER, 0);
|
||||
|
||||
/* Line control 8 bit, 1 stop, no parity */
|
||||
uartwrite(LM32_UART_LCR, LM32_UART_LCR_8BIT);
|
||||
|
||||
/* Modem control, DTR = 1, RTS = 1 */
|
||||
uartwrite(LM32_UART_MCR, LM32_UART_MCR_DTR | LM32_UART_MCR_RTS);
|
||||
|
||||
/* Set baud rate */
|
||||
uartwrite(LM32_UART_DIV, CPU_FREQUENCY/baud);
|
||||
}
|
||||
|
||||
void BSP_uart_polled_write(char ch)
|
||||
{
|
||||
/* Insert CR before LF */
|
||||
if (ch == '\n')
|
||||
BSP_uart_polled_write('\r');
|
||||
/* Wait until THR is empty. */
|
||||
while (!(uartread(LM32_UART_LSR) & LM32_UART_LSR_THRE));
|
||||
uartwrite(LM32_UART_RBR, ch);
|
||||
}
|
||||
|
||||
char BSP_uart_polled_read( void )
|
||||
{
|
||||
/* Wait until there is a byte in RBR */
|
||||
while (!(uartread(LM32_UART_LSR) & LM32_UART_LSR_DR));
|
||||
return (char) uartread(LM32_UART_RBR);
|
||||
}
|
||||
|
||||
char BSP_uart_is_character_ready(char *ch)
|
||||
{
|
||||
if (uartread(LM32_UART_LSR) & LM32_UART_LSR_DR)
|
||||
{
|
||||
*ch = (char) uartread(LM32_UART_RBR);
|
||||
return true;
|
||||
}
|
||||
*ch = '0';
|
||||
return false;
|
||||
}
|
||||
89
c/src/lib/libbsp/lm32/shared/console/uart.h
Normal file
89
c/src/lib/libbsp/lm32/shared/console/uart.h
Normal file
@@ -0,0 +1,89 @@
|
||||
/*
|
||||
* This file contains definitions for LatticeMico32 UART
|
||||
*
|
||||
* COPYRIGHT (c) 1989-1999.
|
||||
* On-Line Applications Research Corporation (OAR).
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
* Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
|
||||
* Micro-Research Finland Oy
|
||||
*/
|
||||
|
||||
#ifndef _BSPUART_H
|
||||
#define _BSPUART_H
|
||||
|
||||
void BSP_uart_init(int baud);
|
||||
|
||||
/* Receive buffer register / transmit holding register */
|
||||
|
||||
#define LM32_UART_RBR (0x0000)
|
||||
|
||||
/* Interrupt enable register */
|
||||
|
||||
#define LM32_UART_IER (0x0004)
|
||||
#define LM32_UART_IER_RBRI (0x0001)
|
||||
#define LM32_UART_IER_THRI (0x0002)
|
||||
#define LM32_UART_IER_RLSI (0x0004)
|
||||
#define LM32_UART_IER_MSI (0x0008)
|
||||
|
||||
/* Interrupt identification register */
|
||||
|
||||
#define LM32_UART_IIR (0x0008)
|
||||
#define LM32_UART_IIR_STAT (0x0001)
|
||||
#define LM32_UART_IIR_ID0 (0x0002)
|
||||
#define LM32_UART_IIR_ID1 (0x0004)
|
||||
|
||||
/* Line control register */
|
||||
|
||||
#define LM32_UART_LCR (0x000C)
|
||||
#define LM32_UART_LCR_WLS0 (0x0001)
|
||||
#define LM32_UART_LCR_WLS1 (0x0002)
|
||||
#define LM32_UART_LCR_STB (0x0004)
|
||||
#define LM32_UART_LCR_PEN (0x0008)
|
||||
#define LM32_UART_LCR_EPS (0x0010)
|
||||
#define LM32_UART_LCR_SP (0x0020)
|
||||
#define LM32_UART_LCR_SB (0x0040)
|
||||
#define LM32_UART_LCR_5BIT (0)
|
||||
#define LM32_UART_LCR_6BIT (LM32_UART_LCR_WLS0)
|
||||
#define LM32_UART_LCR_7BIT (LM32_UART_LCR_WLS1)
|
||||
#define LM32_UART_LCR_8BIT (LM32_UART_LCR_WLS1 | LM32_UART_LCR_WLS0)
|
||||
|
||||
/* Modem control register */
|
||||
|
||||
#define LM32_UART_MCR (0x0010)
|
||||
#define LM32_UART_MCR_DTR (0x0001)
|
||||
#define LM32_UART_MCR_RTS (0x0002)
|
||||
|
||||
/* Line status register */
|
||||
|
||||
#define LM32_UART_LSR (0x0014)
|
||||
#define LM32_UART_LSR_DR (0x0001)
|
||||
#define LM32_UART_LSR_OE (0x0002)
|
||||
#define LM32_UART_LSR_PE (0x0004)
|
||||
#define LM32_UART_LSR_FE (0x0008)
|
||||
#define LM32_UART_LSR_BI (0x0010)
|
||||
#define LM32_UART_LSR_THRE (0x0020)
|
||||
#define LM32_UART_LSR_TEMT (0x0040)
|
||||
|
||||
/* Modem status register */
|
||||
|
||||
#define LM32_UART_MSR (0x0018)
|
||||
#define LM32_UART_MSR_DCTS (0x0001)
|
||||
#define LM32_UART_MSR_DDSR (0x0002)
|
||||
#define LM32_UART_MSR_TERI (0x0004)
|
||||
#define LM32_UART_MSR_DDCD (0x0008)
|
||||
#define LM32_UART_MSR_CTS (0x0010)
|
||||
#define LM32_UART_MSR_DSR (0x0020)
|
||||
#define LM32_UART_MSR_RI (0x0040)
|
||||
#define LM32_UART_MSR_DCD (0x0000)
|
||||
|
||||
/* Baud-rate divisor register */
|
||||
|
||||
#define LM32_UART_DIV (0x001C)
|
||||
|
||||
#endif /* _BSPUART_H */
|
||||
Reference in New Issue
Block a user