sercomm.c File Reference

#include "config.h"
#include <stdint.h>
#include <stdio.h>
#include <errno.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/sercomm.h>
#include <osmocom/core/linuxlist.h>

Macros
#define	DEFAULT_RX_MSG_SIZE   2048
#define	HDLC_FLAG   0x7E
#define	HDLC_ESCAPE   0x7D
#define	HDLC_C_UI   0x03
#define	HDLC_C_P_BIT   (1 << 4)
#define	HDLC_C_F_BIT   (1 << 4)

Enumerations
enum	rx_state {   RX_ST_WAIT_START ,   RX_ST_ADDR ,   RX_ST_CTRL ,   RX_ST_DATA ,   RX_ST_ESCAPE }

Functions
void	sercomm_drv_lock (unsigned long __attribute__((unused)) *flags)
	Protect against IRQ context. More...
void	sercomm_drv_unlock (unsigned long __attribute__((unused)) *flags)
	Release protection against IRQ context. More...
	__attribute__ ((weak))
void	osmo_sercomm_init (struct osmo_sercomm_inst *sercomm)
	Initialize an Osmocom sercomm instance. More...
int	osmo_sercomm_initialized (struct osmo_sercomm_inst *sercomm)
	Determine if a given Osmocom sercomm instance has been initialized. More...
void	osmo_sercomm_sendmsg (struct osmo_sercomm_inst *sercomm, uint8_t dlci, struct msgb *msg)
	User interface for transmitting messages for a given DLCI. More...
unsigned int	osmo_sercomm_tx_queue_depth (struct osmo_sercomm_inst *sercomm, uint8_t dlci)
	How deep is the Tx queue for a given DLCI? More...
int	osmo_sercomm_change_speed (struct osmo_sercomm_inst *sercomm, uint32_t bdrt)
	wait until everything has been transmitted, then grab the lock and change the baud rate as requested More...
int	osmo_sercomm_drv_pull (struct osmo_sercomm_inst *sercomm, uint8_t *ch)
	fetch one octet of to-be-transmitted serial data More...
int	osmo_sercomm_register_rx_cb (struct osmo_sercomm_inst *sercomm, uint8_t dlci, dlci_cb_t cb)
	Register a handler for a given DLCI. More...
static void	dispatch_rx_msg (struct osmo_sercomm_inst *sercomm, uint8_t dlci, struct msgb *msg)
int	osmo_sercomm_drv_rx_char (struct osmo_sercomm_inst *sercomm, uint8_t ch)
	the driver has received one byte, pass it into sercomm layer More...