console.c File Reference

Console Configuration. More...

#include <rtems/bspIo.h>
#include <bsp.h>
#include <dev/serial/arm-pl011.h>
#include <bsp/irq.h>
#include <bsp/console.h>
#include <bsp/fatal.h>
#include <bsp/rpi-gpio.h>
#include <bspopts.h>
#include <rtems/console.h>
#include <rtems/rtems/status.h>
#include <rtems/termiosdevice.h>
#include <stdint.h>

Data Structures
struct	raspberrypi_console_device_gpio_config
struct	raspberrypi_console_device

Macros
#define	CONSOLE_DEVICE_CONTEXT_NAME(port_no)   uart##port_no##_context
#define	CONSOLE_DEVICE_CONTEXT(port_no, _file_name, regs_base, _size, clock_freq, irq_no, context_type, ...)
#define	CONSOLE_DEVICE(port_no, file_name, _base, _size, _clock, _irq, _context_type, dev_handler, write_char_func, rx_pin, tx_pin, gpio_func, ...)

Functions
rtems_status_code	raspberrypi_uart_init (raspberrypi_console_device_port uart_num)
	Initialize gpio of UART and install UART to the dev directory.
rtems_device_driver	console_initialize (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Console initialization entry point.

Variables
BSP_output_char_function_type	BSP_output_char = output_char
	This function pointer references the kernel character output implementation.
BSP_polling_getchar_function_type	BSP_poll_char = poll_char
	This function pointer may reference the kernel character input implementation.

Detailed Description

Console Configuration.

Macro Definition Documentation

CONSOLE_DEVICE

#define CONSOLE_DEVICE	(		port_no,
			file_name,
			_base,
			_size,
			_clock,
			_irq,
			_context_type,
			dev_handler,
			write_char_func,
			rx_pin,
			tx_pin,
			gpio_func,
			...
	)

Value:

[CONSOLE_DEVICE_PORT2ENUM(port_no)] = { \
  .file    = file_name, \
  .context = &CONSOLE_DEVICE_CONTEXT_NAME(port_no).base, \
  .gpio    = {.rx = rx_pin, .tx = tx_pin, .function = gpio_func}, \
  .handler = dev_handler, \
  .write_char_polled = write_char_func, \
},

CONSOLE_DEVICE_CONTEXT

#define CONSOLE_DEVICE_CONTEXT	(		port_no,
			_file_name,
			regs_base,
			_size,
			clock_freq,
			irq_no,
			context_type,
			...
	)

Value:

static context_type CONSOLE_DEVICE_CONTEXT_NAME(port_no) = { \
  .base   = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART" #port_no), \
  .regs = (volatile arm_pl011_uart *) regs_base, \
  .clock     = clock_freq, \
  .initial_baud = 115200, \
  .irq          = irq_no, \
};

Function Documentation

console_initialize()

rtems_device_driver console_initialize	(	rtems_device_major_number	major,
		rtems_device_minor_number	minor,
		void *	arg
	)

Console initialization entry point.

This method initializes the console device driver.

Parameters

[in]	major	is the device driver major number.
[in]	minor	is the device driver minor number.
[in]	arg	is the parameters to this call.

Return values

RTEMS_SUCCESSFUL

The device driver is successfully initialized.

raspberrypi_uart_init()

rtems_status_code raspberrypi_uart_init

(

raspberrypi_console_device_port

uart_num

)

Initialize gpio of UART and install UART to the dev directory.

Parameters

uart_num

The optional devices are UART0, UART2, UART3, UART4, UART5.

Return values

RTEMS_SUCCESSFUL	Successful operation.
RTEMS_INVALID_NUMBER	This status code indicates that a specified number was invalid.
RTEMS_NO_MEMORY	Not enough memory to create a device node.
RTEMS_UNSATISFIED	Creation of the device file failed.
RTEMS_INCORRECT_STATE	Termios is not initialized.