sercomm.h File Reference

Osmocom Sercomm HDLC (de)multiplex. More...

#include <osmocom/core/msgb.h>

Go to the source code of this file.

Data Structures
struct	osmo_sercomm_inst
	one instance of a sercomm multiplex/demultiplex More...

Typedefs
typedef void(*	dlci_cb_t) (struct osmo_sercomm_inst *sercomm, uint8_t dlci, struct msgb *msg)
	call-back function for per-DLC receive handler More...

Enumerations
enum	sercomm_dlci {   SC_DLCI_HIGHEST = 0 ,   SC_DLCI_DEBUG = 4 ,   SC_DLCI_L1A_L23 = 5 ,   SC_DLCI_LOADER = 9 ,   SC_DLCI_CONSOLE = 10 ,   SC_DLCI_ECHO = 128 ,   _SC_DLCI_MAX }
	A low sercomm_dlci means high priority. More...

Functions
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_register_rx_cb (struct osmo_sercomm_inst *sercomm, uint8_t dlci, dlci_cb_t cb)
	Register a handler 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_drv_rx_char (struct osmo_sercomm_inst *sercomm, uint8_t ch)
	the driver has received one byte, pass it into sercomm layer More...
void	sercomm_drv_lock (unsigned long *flags)
void	sercomm_drv_unlock (unsigned long *flags)
void	sercomm_drv_start_tx (struct osmo_sercomm_inst *sercomm)
	low-level driver routine to request start of transmission The Sercomm code calls this function to inform the low-level driver that some data is pending for transmission, and the low-level driver should (if not active already) start enabling tx_empty interrupts and pull drivers out of sercomm using osmo_sercomm_drv_pull() until the latter returns 0. More...
int	sercomm_drv_baudrate_chg (struct osmo_sercomm_inst *sercomm, uint32_t bdrt)
	low-level driver routine to execute baud-rate change More...
static struct msgb *	osmo_sercomm_alloc_msgb (unsigned int len)
	Sercomm msgb allocator function. More...

Detailed Description

Osmocom Sercomm HDLC (de)multiplex.