serial-line.c File Reference

#include "dev/serial-line.h"
#include <string.h>
#include "lib/ringbuf.h"

Macros
#define	BUFSIZE   128
#define	END   0x0a
#define	IGNORE_CHAR(c)   (c == 0x0d)

Functions
	PROCESS (serial_line_process,"Serial driver")
	PROCESS_THREAD (serial_line_process, ev, data)
void	serial_line_init (void)
int	serial_line_input_byte (unsigned char c)
	Get one byte of input from the serial driver. More...

Variables
static struct ringbuf	rxbuf
static uint8_t	rxbuf_data [BUFSIZE]
process_event_t	serial_line_event_message
	Event posted when a line of input has been received. More...

#define BUFSIZE   128

Referenced by PROCESS_THREAD().

#define END   0x0a

Referenced by PROCESS_THREAD(), serial_line_input_byte(), WriteRootCertificate(), and WriteTlsCertificate().

#define IGNORE_CHAR

(

c

)

(c == 0x0d)

Referenced by serial_line_input_byte().

PROCESS	(	serial_line_process	,
		"Serial driver"
	)

PROCESS_THREAD	(	serial_line_process	,
		ev	,
		data
	)

References buf, BUFSIZE, c, END, NULL, process_alloc_event(), PROCESS_BEGIN, PROCESS_BROADCAST, PROCESS_CURRENT, PROCESS_END, PROCESS_ERR_OK, PROCESS_EVENT_CONTINUE, process_post(), PROCESS_WAIT_EVENT_UNTIL, PROCESS_YIELD, ptr, ringbuf_get(), rxbuf, and serial_line_event_message.

void serial_line_init

(

void

)

References NULL, process_start(), ringbuf_init(), rxbuf, and rxbuf_data.

int serial_line_input_byte

(

unsigned char

c

)

Get one byte of input from the serial driver.

This function is to be called from the actual RS232 driver to get one byte of serial data input.

For systems using low-power CPU modes, the return value of the function can be used to determine if the CPU should be woken up or not. If the function returns non-zero, the CPU should be powered up. If the function returns zero, the CPU can continue to be powered down.

Parameters

c	The data that is received.

Returns

Non-zero if the CPU should be powered up, zero otherwise.

References END, IGNORE_CHAR, process_poll(), ringbuf_put(), and rxbuf.

struct ringbuf rxbuf

static

Referenced by PROCESS_THREAD(), serial_line_init(), and serial_line_input_byte().

uint8_t rxbuf_data[BUFSIZE]

static

Referenced by serial_line_init().

process_event_t serial_line_event_message

Event posted when a line of input has been received.

This event is posted when an entire line of input has been received from the serial port. A data pointer to the incoming line of input is sent together with the event.

Referenced by PROCESS_THREAD().