#include <ti_wilink_st.h>

Data Fields
unsigned long	st_state

struct sk_buff *	tx_skb

unsigned long	tx_state

struct st_proto_s *	list [ST_MAX_CHANNELS]

bool	is_registered [ST_MAX_CHANNELS]

unsigned long	rx_state

unsigned long	rx_count

struct sk_buff *	rx_skb

unsigned char	rx_chnl

struct sk_buff_head txq	tx_waitq

spinlock_t	lock

unsigned char	protos_registered

unsigned long	ll_state

void *	kim_data

struct tty_struct *	tty

Detailed Description

struct st_data_s - ST core internal structure : different states of ST like initializing, registration in progress, this is mainly used to return relevant err codes when protocol drivers are registering. It is also used to track the recv function, as in during fw download only HCI events can occur , where as during other times other events CH8, CH9 can occur. : tty provided by the TTY core for line disciplines. : If for some reason the tty's write returns lesser bytes written then to maintain the rest of data to be written on next instance. This needs to be protected, hence the lock inside wakeup func. : if the data is being written onto the TTY and protocol driver wants to send more, queue up data and mark that there is more data to send. : the list of protocols registered, only MAX can exist, one protocol can register only once. : states to be maintained inside st's tty receive : count to be maintained inside st's tty receieve : the skb where all data for a protocol gets accumulated, since tty might not call receive when a complete event packet is received, the states, count and the skb needs to be maintained. : the channel ID for which the data is getting accumalated for. : the list of skbs which needs to be sent onto the TTY. : if the chip is not in AWAKE state, the skbs needs to be queued up in here, PM(WAKEUP_IND) data needs to be sent and then the skbs from waitq can be moved onto the txq. Needs locking too. : the lock to protect skbs, queues, and ST states. : count of the protocols registered, also when 0 the chip enable gpio can be toggled, and when it changes to 1 the fw needs to be downloaded to initialize chip side ST. : the various PM states the chip can be, the states are notified to us, when the chip sends relevant PM packets(SLEEP_IND, WAKE_IND). : reference to the parent encapsulating structure.