/**
*@file console.c
*
*@brief
* - This file implements uart console for TLL6527M. TLL6527M has BF527 with
* second uart (uart-1) connected to the console.
*
* Target: TLL6527v1-0
* Compiler:
*
* COPYRIGHT (c) 2010 by ECE Northeastern University.
*
* 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
*
* @author Rohan Kangralkar, ECE, Northeastern University
* (kangralkar.r@husky.neu.edu)
*
* LastChange:
*/
#include <rtems.h>
#include <rtems/libio.h>
#include <bsp.h>
#include <rtems/bspIo.h>
#include <rtems/console.h>
#include <bsp/interrupt.h>
#include <libcpu/uart.h>
/***************************************************
LOCAL DEFINES
***************************************************/
/***************************************************
STATIC GLOBALS
***************************************************/
/**
* Declaration of UART
*/
static bfin_uart_channel_t channels[] = {
{"/dev/console",
UART1_BASE_ADDRESS,
DMA10_BASE_ADDRESS,
DMA11_BASE_ADDRESS,
CONSOLE_USE_INTERRUPTS,
UART_USE_DMA,
CONSOLE_BAUDRATE,
NULL,
0,
0}
};
/**
* Over all configuration
*/
static bfin_uart_config_t config = {
SCLK,
sizeof(channels) / sizeof(channels[0]),
channels
};
#if CONSOLE_USE_INTERRUPTS
/**
* The Rx and Tx isr will get the same argument
* The isr will have to find if it was the rx that caused the interrupt or
* the tx
*/
static bfin_isr_t bfinUARTISRs[] = {
#if UART_USE_DMA
/* For First uart */
{IRQ_DMA10_UART1_RX, bfinUart_rxDmaIsr, (void *)&channels[0], 0},
{IRQ_DMA11_UART1_TX, bfinUart_txDmaIsr, (void *)&channels[0], 0},
/* For second uart */
#else
/* For First uart */
{IRQ_DMA10_UART1_RX, bfinUart_rxIsr, &channels[0], 0},
{IRQ_DMA11_UART1_TX, bfinUart_txIsr, &channels[0], 0},
/* For second uart */
#endif
};
#endif
static void TLL6527_BSP_output_char(char c) {
bfin_uart_poll_write(0, c);
}
static int TLL6527_BSP_poll_char(void) {
return bfin_uart_poll_read(0);
}
BSP_output_char_function_type BSP_output_char = TLL6527_BSP_output_char;
BSP_polling_getchar_function_type BSP_poll_char = TLL6527_BSP_poll_char;
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);
}
/*
* Open entry point
*/
rtems_device_driver console_open(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg) {
return bfin_uart_open(major, minor, arg);
}
/**
*
* This routine initializes the console IO driver.
*
* Parameters
* @param major major number
* @param minor minor number
*
* Output parameters: NONE
*
* @return void
*/
rtems_device_driver console_initialize(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg) {
rtems_status_code status = RTEMS_NOT_DEFINED;
#if CONSOLE_USE_INTERRUPTS
int i = 0;
#endif
status = bfin_uart_initialize(major, &config);
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(status);
}
#if CONSOLE_USE_INTERRUPTS
for (i = 0; i < sizeof(bfinUARTISRs) / sizeof(bfinUARTISRs[0]); i++) {
bfin_interrupt_register(&bfinUARTISRs[i]);
#if INTERRUPT_USE_TABLE
#else
bfin_interrupt_enable(&bfinUARTISRs[i], 1);
#endif
}
#endif
return RTEMS_SUCCESSFUL;
}
