tms570-sci.c File Reference

This source file contains the Console Driver implementation using the Serial Communication Interface (SCI). More...

#include <bspopts.h>
#include <termios.h>
#include <rtems/termiostypes.h>
#include <bsp/tms570-sci-driver.h>
#include <rtems/console.h>
#include <bsp.h>
#include <bsp/fatal.h>
#include <bsp/irq.h>

Functions
void	tms570_sci_initialize (tms570_sci_context *ctx)
rtems_device_driver	console_initialize (rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
	Serial drivers init function.
bool	tms570_sci_set_attributes (rtems_termios_device_context *base, const struct termios *t)
	Set attributes of the HW peripheral.

Variables
tms570_sci_context	driver_context_table []
	Table including all serial drivers.
const rtems_termios_device_handler	tms570_sci_handler_polled
	Struct containing definitions of polled driver functions.
const rtems_termios_device_handler	tms570_sci_handler_interrupt
	Struct containing definitions of interrupt driven driver functions.

Detailed Description

This source file contains the Console Driver implementation using the Serial Communication Interface (SCI).

Function Documentation

console_initialize()

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

Serial drivers init function.

Console initialization entry point.

Initialize all serial drivers specified in driver_context_table

Parameters

[in]	major
[in]	minor
[in]	arg

Return values

RTEMS_SUCCESSFUL

Initialization completed

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.

tms570_sci_set_attributes()

bool tms570_sci_set_attributes	(	rtems_termios_device_context *	base,
		const struct termios *	t )

Set attributes of the HW peripheral.

Sets attributes of the HW peripheral (parity, baud rate, etc.)

Parameters

[in]	base	context of the driver
[in]	t	termios driver

Return values

true	peripheral setting is changed

Variable Documentation

driver_context_table

tms570_sci_context driver_context_table[]

Initial value:

                                        = {
  {
    .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("TMS570 SCI1"),
    .device_name = "/dev/console",
    
    .regs = (volatile tms570_sci_t *) &TMS570_LIN,
    .irq = TMS570_IRQ_SCI_LEVEL_0,
  },
  {
    .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("TMS570 SCI2"),
    .device_name = "/dev/ttyS1",
    .regs = &TMS570_SCI,
    .irq = TMS570_IRQ_SCI2_LEVEL_0,
  }
}

Table including all serial drivers.

Definitions of all serial drivers

tms570_sci_handler_interrupt

const rtems_termios_device_handler tms570_sci_handler_interrupt

Initial value:

                                                                 = {
  .first_open = tms570_sci_interrupt_first_open,
  .last_close = tms570_sci_interrupt_last_close,
  .poll_read = NULL,
  .write = tms570_sci_interrupt_write,
  .set_attributes = tms570_sci_set_attributes,
  .mode = TERMIOS_IRQ_DRIVEN
}

Struct containing definitions of interrupt driven driver functions.

Encapsulates interrupt driven driver functions. Use of this table is determited by defining TMS570_USE_INTERRUPTS

tms570_sci_handler_polled

const rtems_termios_device_handler tms570_sci_handler_polled

Initial value:

                                                             = {
  .first_open = tms570_sci_poll_first_open,
  .last_close = tms570_sci_poll_last_close,
  .poll_read = tms570_sci_poll_read,
  .write = tms570_sci_poll_write,
  .set_attributes = tms570_sci_set_attributes,
  .mode = TERMIOS_POLLED
}

Struct containing definitions of polled driver functions.

Encapsulates polled driver functions. Use of this table is determited by not defining TMS570_USE_INTERRUPTS