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staging: ti-st: mv headers to ti_wilink_st
move all the header information to ti_wilink_st.h. This header would then not only serve the local modules like the st_core.c, st_kim.c and st_ll.c but also the external modules/protocol drivers that are dependent on the shared transport driver. Modify the source files to include the new header ti_wilink_st.h, Signed-off-by: Pavan Savoy <pavan_savoy@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Pavan Savoy
Greg Kroah-Hartman
parent
5d702ea319
commit
83ef41f085
@ -24,7 +24,7 @@
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include "st.h"
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#include "ti_wilink_st.h"
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#include "bt_drv.h"
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/* Define this macro to get debug msg */
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@ -1,13 +0,0 @@
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struct fm_event_hdr {
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u8 plen;
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} __attribute__ ((packed));
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#define FM_MAX_FRAME_SIZE 0xFF /* TODO: */
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#define FM_EVENT_HDR_SIZE 1 /* size of fm_event_hdr */
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#define ST_FM_CH8_PKT 0x8
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/* gps stuff */
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struct gps_event_hdr {
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u8 opcode;
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u16 plen;
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} __attribute__ ((packed));
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@ -1,83 +0,0 @@
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/*
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* Shared Transport Header file
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* To be included by the protocol stack drivers for
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* Texas Instruments BT,FM and GPS combo chip drivers
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*
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* Copyright (C) 2009 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef ST_H
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#define ST_H
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#include <linux/skbuff.h>
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/* TODO:
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* Move the following to tty.h upon acceptance
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*/
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#define N_TI_WL 20 /* Ldisc for TI's WL BT, FM, GPS combo chips */
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/**
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* enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW
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* gpio states for their chip/core enable gpios
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*/
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enum kim_gpio_state {
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KIM_GPIO_INACTIVE,
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KIM_GPIO_ACTIVE,
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};
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/**
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* enum proto-type - The protocol on WiLink chips which share a
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* common physical interface like UART.
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*/
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enum proto_type {
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ST_BT,
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ST_FM,
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ST_GPS,
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ST_MAX,
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};
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/**
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* struct st_proto_s - Per Protocol structure from BT/FM/GPS to ST
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* @type: type of the protocol being registered among the
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* available proto_type(BT, FM, GPS the protocol which share TTY).
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* @recv: the receiver callback pointing to a function in the
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* protocol drivers called by the ST driver upon receiving
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* relevant data.
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* @match_packet: reserved for future use, to make ST more generic
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* @reg_complete_cb: callback handler pointing to a function in protocol
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* handler called by ST when the pending registrations are complete.
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* The registrations are marked pending, in situations when fw
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* download is in progress.
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* @write: pointer to function in ST provided to protocol drivers from ST,
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* to be made use when protocol drivers have data to send to TTY.
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* @priv_data: privdate data holder for the protocol drivers, sent
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* from the protocol drivers during registration, and sent back on
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* reg_complete_cb and recv.
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*/
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struct st_proto_s {
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enum proto_type type;
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long (*recv) (void *, struct sk_buff *);
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unsigned char (*match_packet) (const unsigned char *data);
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void (*reg_complete_cb) (void *, char data);
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long (*write) (struct sk_buff *skb);
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void *priv_data;
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};
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extern long st_register(struct st_proto_s *);
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extern long st_unregister(enum proto_type);
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#endif /* ST_H */
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@ -28,15 +28,7 @@
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/hci.h>
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#include "fm.h"
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/*
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* packet formats for fm and gps
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* #include "gps.h"
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*/
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#include "st_core.h"
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#include "st_kim.h"
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#include "st_ll.h"
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#include "st.h"
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#include "ti_wilink_st.h"
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/* strings to be used for rfkill entries and by
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* ST Core to be used for sysfs debug entry
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@ -1,128 +0,0 @@
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/*
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* Shared Transport Core header file
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*
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* Copyright (C) 2009 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef ST_CORE_H
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#define ST_CORE_H
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#include <linux/skbuff.h>
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#include "st.h"
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/* states of protocol list */
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#define ST_NOTEMPTY 1
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#define ST_EMPTY 0
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/*
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* possible st_states
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*/
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#define ST_INITIALIZING 1
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#define ST_REG_IN_PROGRESS 2
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#define ST_REG_PENDING 3
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#define ST_WAITING_FOR_RESP 4
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/**
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* struct st_data_s - ST core internal structure
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* @st_state: different states of ST like initializing, registration
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* in progress, this is mainly used to return relevant err codes
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* when protocol drivers are registering. It is also used to track
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* the recv function, as in during fw download only HCI events
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* can occur , where as during other times other events CH8, CH9
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* can occur.
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* @tty: tty provided by the TTY core for line disciplines.
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* @ldisc_ops: the procedures that this line discipline registers with TTY.
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* @tx_skb: If for some reason the tty's write returns lesser bytes written
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* then to maintain the rest of data to be written on next instance.
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* This needs to be protected, hence the lock inside wakeup func.
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* @tx_state: if the data is being written onto the TTY and protocol driver
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* wants to send more, queue up data and mark that there is
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* more data to send.
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* @list: the list of protocols registered, only MAX can exist, one protocol
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* can register only once.
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* @rx_state: states to be maintained inside st's tty receive
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* @rx_count: count to be maintained inside st's tty receieve
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* @rx_skb: the skb where all data for a protocol gets accumulated,
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* since tty might not call receive when a complete event packet
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* is received, the states, count and the skb needs to be maintained.
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* @txq: the list of skbs which needs to be sent onto the TTY.
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* @tx_waitq: if the chip is not in AWAKE state, the skbs needs to be queued
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* up in here, PM(WAKEUP_IND) data needs to be sent and then the skbs
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* from waitq can be moved onto the txq.
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* Needs locking too.
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* @lock: the lock to protect skbs, queues, and ST states.
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* @protos_registered: count of the protocols registered, also when 0 the
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* chip enable gpio can be toggled, and when it changes to 1 the fw
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* needs to be downloaded to initialize chip side ST.
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* @ll_state: the various PM states the chip can be, the states are notified
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* to us, when the chip sends relevant PM packets(SLEEP_IND, WAKE_IND).
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* @kim_data: reference to the parent encapsulating structure.
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*
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*/
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struct st_data_s {
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unsigned long st_state;
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struct tty_struct *tty;
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struct tty_ldisc_ops *ldisc_ops;
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struct sk_buff *tx_skb;
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#define ST_TX_SENDING 1
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#define ST_TX_WAKEUP 2
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unsigned long tx_state;
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struct st_proto_s *list[ST_MAX];
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unsigned long rx_state;
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unsigned long rx_count;
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struct sk_buff *rx_skb;
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struct sk_buff_head txq, tx_waitq;
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spinlock_t lock;
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unsigned char protos_registered;
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unsigned long ll_state;
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void *kim_data;
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};
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/**
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* st_int_write -
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* point this to tty->driver->write or tty->ops->write
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* depending upon the kernel version
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*/
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int st_int_write(struct st_data_s*, const unsigned char*, int);
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/**
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* st_write -
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* internal write function, passed onto protocol drivers
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* via the write function ptr of protocol struct
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*/
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long st_write(struct sk_buff *);
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/* function to be called from ST-LL */
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void st_ll_send_frame(enum proto_type, struct sk_buff *);
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/* internal wake up function */
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void st_tx_wakeup(struct st_data_s *st_data);
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/* init, exit entry funcs called from KIM */
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int st_core_init(struct st_data_s **);
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void st_core_exit(struct st_data_s *);
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/* ask for reference from KIM */
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void st_kim_ref(struct st_data_s **, int);
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#define GPS_STUB_TEST
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#ifdef GPS_STUB_TEST
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int gps_chrdrv_stub_write(const unsigned char*, int);
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void gps_chrdrv_stub_init(void);
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#endif
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#endif /*ST_CORE_H */
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@ -28,15 +28,16 @@
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#include <linux/gpio.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/sched.h>
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#include <linux/rfkill.h>
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#include "st_kim.h"
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/* understand BT events for fw response */
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/hci.h>
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#include "ti_wilink_st.h"
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static int kim_probe(struct platform_device *pdev);
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static int kim_remove(struct platform_device *pdev);
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@ -1,180 +0,0 @@
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/*
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* Shared Transport Line discipline driver Core
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* Init Manager Module header file
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* Copyright (C) 2009 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef ST_KIM_H
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#define ST_KIM_H
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#include <linux/types.h>
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#include "st.h"
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#include "st_core.h"
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#include "st_ll.h"
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#include <linux/rfkill.h>
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/* time in msec to wait for
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* line discipline to be installed
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*/
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#define LDISC_TIME 500
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#define CMD_RESP_TIME 500
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#define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \
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| ((unsigned short)((unsigned char)(b))) << 8))
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#define GPIO_HIGH 1
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#define GPIO_LOW 0
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/* the Power-On-Reset logic, requires to attempt
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* to download firmware onto chip more than once
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* since the self-test for chip takes a while
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*/
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#define POR_RETRY_COUNT 5
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/**
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* struct chip_version - save the chip version
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*/
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struct chip_version {
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unsigned short full;
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unsigned short chip;
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unsigned short min_ver;
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unsigned short maj_ver;
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};
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/**
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* struct kim_data_s - the KIM internal data, embedded as the
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* platform's drv data. One for each ST device in the system.
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* @uim_pid: KIM needs to communicate with UIM to request to install
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* the ldisc by opening UART when protocol drivers register.
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* @kim_pdev: the platform device added in one of the board-XX.c file
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* in arch/XX/ directory, 1 for each ST device.
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* @kim_rcvd: completion handler to notify when data was received,
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* mainly used during fw download, which involves multiple send/wait
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* for each of the HCI-VS commands.
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* @ldisc_installed: completion handler to notify that the UIM accepted
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* the request to install ldisc, notify from tty_open which suggests
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* the ldisc was properly installed.
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* @resp_buffer: data buffer for the .bts fw file name.
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* @fw_entry: firmware class struct to request/release the fw.
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* @gpios: the list of core/chip enable gpios for BT, FM and GPS cores.
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* @rx_state: the rx state for kim's receive func during fw download.
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* @rx_count: the rx count for the kim's receive func during fw download.
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* @rx_skb: all of fw data might not come at once, and hence data storage for
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* whole of the fw response, only HCI_EVENTs and hence diff from ST's
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* response.
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* @rfkill: rfkill data for each of the cores to be registered with rfkill.
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* @rf_protos: proto types of the data registered with rfkill sub-system.
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* @core_data: ST core's data, which mainly is the tty's disc_data
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* @version: chip version available via a sysfs entry.
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*
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*/
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struct kim_data_s {
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long uim_pid;
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struct platform_device *kim_pdev;
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struct completion kim_rcvd, ldisc_installed;
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char resp_buffer[30];
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const struct firmware *fw_entry;
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long gpios[ST_MAX];
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unsigned long rx_state;
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unsigned long rx_count;
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struct sk_buff *rx_skb;
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struct rfkill *rfkill[ST_MAX];
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enum proto_type rf_protos[ST_MAX];
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struct st_data_s *core_data;
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struct chip_version version;
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};
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/**
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* functions called when 1 of the protocol drivers gets
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* registered, these need to communicate with UIM to request
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* ldisc installed, read chip_version, download relevant fw
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*/
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long st_kim_start(void *);
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long st_kim_stop(void *);
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void st_kim_recv(void *, const unsigned char *, long count);
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void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state);
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void st_kim_complete(void *);
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void kim_st_list_protocols(struct st_data_s *, void *);
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/*
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* BTS headers
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*/
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#define ACTION_SEND_COMMAND 1
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#define ACTION_WAIT_EVENT 2
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#define ACTION_SERIAL 3
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#define ACTION_DELAY 4
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#define ACTION_RUN_SCRIPT 5
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#define ACTION_REMARKS 6
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/**
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* struct bts_header - the fw file is NOT binary which can
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* be sent onto TTY as is. The .bts is more a script
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* file which has different types of actions.
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* Each such action needs to be parsed by the KIM and
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* relevant procedure to be called.
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*/
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struct bts_header {
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u32 magic;
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u32 version;
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u8 future[24];
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u8 actions[0];
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} __attribute__ ((packed));
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/**
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* struct bts_action - Each .bts action has its own type of
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* data.
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*/
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struct bts_action {
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u16 type;
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u16 size;
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u8 data[0];
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} __attribute__ ((packed));
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struct bts_action_send {
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u8 data[0];
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} __attribute__ ((packed));
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struct bts_action_wait {
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u32 msec;
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u32 size;
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u8 data[0];
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} __attribute__ ((packed));
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struct bts_action_delay {
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u32 msec;
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} __attribute__ ((packed));
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struct bts_action_serial {
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u32 baud;
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u32 flow_control;
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} __attribute__ ((packed));
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/**
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* struct hci_command - the HCI-VS for intrepreting
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* the change baud rate of host-side UART, which
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* needs to be ignored, since UIM would do that
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* when it receives request from KIM for ldisc installation.
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*/
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struct hci_command {
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u8 prefix;
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u16 opcode;
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u8 plen;
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u32 speed;
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} __attribute__ ((packed));
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#endif /* ST_KIM_H */
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@ -19,7 +19,9 @@
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*/
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#define pr_fmt(fmt) "(stll) :" fmt
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#include "st_ll.h"
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#include <linux/skbuff.h>
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#include <linux/module.h>
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#include "ti_wilink_st.h"
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/**********************************************************************/
|
||||
/* internal functions */
|
||||
|
||||
@ -1,69 +0,0 @@
|
||||
/*
|
||||
* Shared Transport Low Level (ST LL)
|
||||
*
|
||||
* Copyright (C) 2009 Texas Instruments
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef ST_LL_H
|
||||
#define ST_LL_H
|
||||
|
||||
#include <linux/skbuff.h>
|
||||
#include "st.h"
|
||||
#include "st_core.h"
|
||||
|
||||
/* ST LL receiver states */
|
||||
#define ST_W4_PACKET_TYPE 0
|
||||
#define ST_BT_W4_EVENT_HDR 1
|
||||
#define ST_BT_W4_ACL_HDR 2
|
||||
#define ST_BT_W4_SCO_HDR 3
|
||||
#define ST_BT_W4_DATA 4
|
||||
#define ST_FM_W4_EVENT_HDR 5
|
||||
#define ST_GPS_W4_EVENT_HDR 6
|
||||
|
||||
/* ST LL state machines */
|
||||
#define ST_LL_ASLEEP 0
|
||||
#define ST_LL_ASLEEP_TO_AWAKE 1
|
||||
#define ST_LL_AWAKE 2
|
||||
#define ST_LL_AWAKE_TO_ASLEEP 3
|
||||
#define ST_LL_INVALID 4
|
||||
|
||||
/* different PM notifications coming from chip */
|
||||
#define LL_SLEEP_IND 0x30
|
||||
#define LL_SLEEP_ACK 0x31
|
||||
#define LL_WAKE_UP_IND 0x32
|
||||
#define LL_WAKE_UP_ACK 0x33
|
||||
|
||||
/* initialize and de-init ST LL */
|
||||
long st_ll_init(struct st_data_s *);
|
||||
long st_ll_deinit(struct st_data_s *);
|
||||
|
||||
/**
|
||||
* enable/disable ST LL along with KIM start/stop
|
||||
* called by ST Core
|
||||
*/
|
||||
void st_ll_enable(struct st_data_s *);
|
||||
void st_ll_disable(struct st_data_s *);
|
||||
|
||||
/**
|
||||
* various funcs used by ST core to set/get the various PM states
|
||||
* of the chip.
|
||||
*/
|
||||
unsigned long st_ll_getstate(struct st_data_s *);
|
||||
unsigned long st_ll_sleep_state(struct st_data_s *, unsigned char);
|
||||
void st_ll_wakeup(struct st_data_s *);
|
||||
|
||||
#endif /* ST_LL_H */
|
||||
409
drivers/staging/ti-st/ti_wilink_st.h
Normal file
409
drivers/staging/ti-st/ti_wilink_st.h
Normal file
@ -0,0 +1,409 @@
|
||||
/*
|
||||
* Shared Transport Header file
|
||||
* To be included by the protocol stack drivers for
|
||||
* Texas Instruments BT,FM and GPS combo chip drivers
|
||||
* and also serves the sub-modules of the shared transport driver.
|
||||
*
|
||||
* Copyright (C) 2009-2010 Texas Instruments
|
||||
* Author: Pavan Savoy <pavan_savoy@ti.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef TI_WILINK_ST_H
|
||||
#define TI_WILINK_ST_H
|
||||
|
||||
/* TODO:
|
||||
* Move the following to tty.h upon acceptance
|
||||
*/
|
||||
#define N_TI_WL 22 /* Ldisc for TI's WL BT, FM, GPS combo chips */
|
||||
|
||||
#ifdef __KERNEL__
|
||||
/**
|
||||
* enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW
|
||||
* gpio states for their chip/core enable gpios
|
||||
*/
|
||||
enum kim_gpio_state {
|
||||
KIM_GPIO_INACTIVE,
|
||||
KIM_GPIO_ACTIVE,
|
||||
};
|
||||
|
||||
/**
|
||||
* enum proto-type - The protocol on WiLink chips which share a
|
||||
* common physical interface like UART.
|
||||
*/
|
||||
enum proto_type {
|
||||
ST_BT,
|
||||
ST_FM,
|
||||
ST_GPS,
|
||||
ST_MAX,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct st_proto_s - Per Protocol structure from BT/FM/GPS to ST
|
||||
* @type: type of the protocol being registered among the
|
||||
* available proto_type(BT, FM, GPS the protocol which share TTY).
|
||||
* @recv: the receiver callback pointing to a function in the
|
||||
* protocol drivers called by the ST driver upon receiving
|
||||
* relevant data.
|
||||
* @match_packet: reserved for future use, to make ST more generic
|
||||
* @reg_complete_cb: callback handler pointing to a function in protocol
|
||||
* handler called by ST when the pending registrations are complete.
|
||||
* The registrations are marked pending, in situations when fw
|
||||
* download is in progress.
|
||||
* @write: pointer to function in ST provided to protocol drivers from ST,
|
||||
* to be made use when protocol drivers have data to send to TTY.
|
||||
* @priv_data: privdate data holder for the protocol drivers, sent
|
||||
* from the protocol drivers during registration, and sent back on
|
||||
* reg_complete_cb and recv.
|
||||
*/
|
||||
struct st_proto_s {
|
||||
enum proto_type type;
|
||||
long (*recv) (void *, struct sk_buff *);
|
||||
unsigned char (*match_packet) (const unsigned char *data);
|
||||
void (*reg_complete_cb) (void *, char data);
|
||||
long (*write) (struct sk_buff *skb);
|
||||
void *priv_data;
|
||||
};
|
||||
|
||||
extern long st_register(struct st_proto_s *);
|
||||
extern long st_unregister(enum proto_type);
|
||||
|
||||
|
||||
/*
|
||||
* header information used by st_core.c
|
||||
*/
|
||||
|
||||
/* states of protocol list */
|
||||
#define ST_NOTEMPTY 1
|
||||
#define ST_EMPTY 0
|
||||
|
||||
/*
|
||||
* possible st_states
|
||||
*/
|
||||
#define ST_INITIALIZING 1
|
||||
#define ST_REG_IN_PROGRESS 2
|
||||
#define ST_REG_PENDING 3
|
||||
#define ST_WAITING_FOR_RESP 4
|
||||
|
||||
/**
|
||||
* struct st_data_s - ST core internal structure
|
||||
* @st_state: 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: tty provided by the TTY core for line disciplines.
|
||||
* @ldisc_ops: the procedures that this line discipline registers with TTY.
|
||||
* @tx_skb: 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.
|
||||
* @tx_state: 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.
|
||||
* @list: the list of protocols registered, only MAX can exist, one protocol
|
||||
* can register only once.
|
||||
* @rx_state: states to be maintained inside st's tty receive
|
||||
* @rx_count: count to be maintained inside st's tty receieve
|
||||
* @rx_skb: 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.
|
||||
* @txq: the list of skbs which needs to be sent onto the TTY.
|
||||
* @tx_waitq: 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.
|
||||
* @lock: the lock to protect skbs, queues, and ST states.
|
||||
* @protos_registered: 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.
|
||||
* @ll_state: 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).
|
||||
* @kim_data: reference to the parent encapsulating structure.
|
||||
*
|
||||
*/
|
||||
struct st_data_s {
|
||||
unsigned long st_state;
|
||||
struct tty_struct *tty;
|
||||
struct tty_ldisc_ops *ldisc_ops;
|
||||
struct sk_buff *tx_skb;
|
||||
#define ST_TX_SENDING 1
|
||||
#define ST_TX_WAKEUP 2
|
||||
unsigned long tx_state;
|
||||
struct st_proto_s *list[ST_MAX];
|
||||
unsigned long rx_state;
|
||||
unsigned long rx_count;
|
||||
struct sk_buff *rx_skb;
|
||||
struct sk_buff_head txq, tx_waitq;
|
||||
spinlock_t lock;
|
||||
unsigned char protos_registered;
|
||||
unsigned long ll_state;
|
||||
void *kim_data;
|
||||
};
|
||||
|
||||
/**
|
||||
* st_int_write -
|
||||
* point this to tty->driver->write or tty->ops->write
|
||||
* depending upon the kernel version
|
||||
*/
|
||||
int st_int_write(struct st_data_s*, const unsigned char*, int);
|
||||
|
||||
/**
|
||||
* st_write -
|
||||
* internal write function, passed onto protocol drivers
|
||||
* via the write function ptr of protocol struct
|
||||
*/
|
||||
long st_write(struct sk_buff *);
|
||||
|
||||
/* function to be called from ST-LL */
|
||||
void st_ll_send_frame(enum proto_type, struct sk_buff *);
|
||||
|
||||
/* internal wake up function */
|
||||
void st_tx_wakeup(struct st_data_s *st_data);
|
||||
|
||||
/* init, exit entry funcs called from KIM */
|
||||
int st_core_init(struct st_data_s **);
|
||||
void st_core_exit(struct st_data_s *);
|
||||
|
||||
/* ask for reference from KIM */
|
||||
void st_kim_ref(struct st_data_s **, int);
|
||||
|
||||
#define GPS_STUB_TEST
|
||||
#ifdef GPS_STUB_TEST
|
||||
int gps_chrdrv_stub_write(const unsigned char*, int);
|
||||
void gps_chrdrv_stub_init(void);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* header information used by st_kim.c
|
||||
*/
|
||||
|
||||
/* time in msec to wait for
|
||||
* line discipline to be installed
|
||||
*/
|
||||
#define LDISC_TIME 500
|
||||
#define CMD_RESP_TIME 500
|
||||
#define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \
|
||||
| ((unsigned short)((unsigned char)(b))) << 8))
|
||||
|
||||
#define GPIO_HIGH 1
|
||||
#define GPIO_LOW 0
|
||||
|
||||
/* the Power-On-Reset logic, requires to attempt
|
||||
* to download firmware onto chip more than once
|
||||
* since the self-test for chip takes a while
|
||||
*/
|
||||
#define POR_RETRY_COUNT 5
|
||||
|
||||
/**
|
||||
* struct chip_version - save the chip version
|
||||
*/
|
||||
struct chip_version {
|
||||
unsigned short full;
|
||||
unsigned short chip;
|
||||
unsigned short min_ver;
|
||||
unsigned short maj_ver;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct kim_data_s - the KIM internal data, embedded as the
|
||||
* platform's drv data. One for each ST device in the system.
|
||||
* @uim_pid: KIM needs to communicate with UIM to request to install
|
||||
* the ldisc by opening UART when protocol drivers register.
|
||||
* @kim_pdev: the platform device added in one of the board-XX.c file
|
||||
* in arch/XX/ directory, 1 for each ST device.
|
||||
* @kim_rcvd: completion handler to notify when data was received,
|
||||
* mainly used during fw download, which involves multiple send/wait
|
||||
* for each of the HCI-VS commands.
|
||||
* @ldisc_installed: completion handler to notify that the UIM accepted
|
||||
* the request to install ldisc, notify from tty_open which suggests
|
||||
* the ldisc was properly installed.
|
||||
* @resp_buffer: data buffer for the .bts fw file name.
|
||||
* @fw_entry: firmware class struct to request/release the fw.
|
||||
* @gpios: the list of core/chip enable gpios for BT, FM and GPS cores.
|
||||
* @rx_state: the rx state for kim's receive func during fw download.
|
||||
* @rx_count: the rx count for the kim's receive func during fw download.
|
||||
* @rx_skb: all of fw data might not come at once, and hence data storage for
|
||||
* whole of the fw response, only HCI_EVENTs and hence diff from ST's
|
||||
* response.
|
||||
* @rfkill: rfkill data for each of the cores to be registered with rfkill.
|
||||
* @rf_protos: proto types of the data registered with rfkill sub-system.
|
||||
* @core_data: ST core's data, which mainly is the tty's disc_data
|
||||
* @version: chip version available via a sysfs entry.
|
||||
*
|
||||
*/
|
||||
struct kim_data_s {
|
||||
long uim_pid;
|
||||
struct platform_device *kim_pdev;
|
||||
struct completion kim_rcvd, ldisc_installed;
|
||||
char resp_buffer[30];
|
||||
const struct firmware *fw_entry;
|
||||
long gpios[ST_MAX];
|
||||
unsigned long rx_state;
|
||||
unsigned long rx_count;
|
||||
struct sk_buff *rx_skb;
|
||||
struct rfkill *rfkill[ST_MAX];
|
||||
enum proto_type rf_protos[ST_MAX];
|
||||
struct st_data_s *core_data;
|
||||
struct chip_version version;
|
||||
};
|
||||
|
||||
/**
|
||||
* functions called when 1 of the protocol drivers gets
|
||||
* registered, these need to communicate with UIM to request
|
||||
* ldisc installed, read chip_version, download relevant fw
|
||||
*/
|
||||
long st_kim_start(void *);
|
||||
long st_kim_stop(void *);
|
||||
|
||||
void st_kim_recv(void *, const unsigned char *, long count);
|
||||
void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state);
|
||||
void st_kim_complete(void *);
|
||||
void kim_st_list_protocols(struct st_data_s *, void *);
|
||||
|
||||
/*
|
||||
* BTS headers
|
||||
*/
|
||||
#define ACTION_SEND_COMMAND 1
|
||||
#define ACTION_WAIT_EVENT 2
|
||||
#define ACTION_SERIAL 3
|
||||
#define ACTION_DELAY 4
|
||||
#define ACTION_RUN_SCRIPT 5
|
||||
#define ACTION_REMARKS 6
|
||||
|
||||
/**
|
||||
* struct bts_header - the fw file is NOT binary which can
|
||||
* be sent onto TTY as is. The .bts is more a script
|
||||
* file which has different types of actions.
|
||||
* Each such action needs to be parsed by the KIM and
|
||||
* relevant procedure to be called.
|
||||
*/
|
||||
struct bts_header {
|
||||
u32 magic;
|
||||
u32 version;
|
||||
u8 future[24];
|
||||
u8 actions[0];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/**
|
||||
* struct bts_action - Each .bts action has its own type of
|
||||
* data.
|
||||
*/
|
||||
struct bts_action {
|
||||
u16 type;
|
||||
u16 size;
|
||||
u8 data[0];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct bts_action_send {
|
||||
u8 data[0];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct bts_action_wait {
|
||||
u32 msec;
|
||||
u32 size;
|
||||
u8 data[0];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct bts_action_delay {
|
||||
u32 msec;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct bts_action_serial {
|
||||
u32 baud;
|
||||
u32 flow_control;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/**
|
||||
* struct hci_command - the HCI-VS for intrepreting
|
||||
* the change baud rate of host-side UART, which
|
||||
* needs to be ignored, since UIM would do that
|
||||
* when it receives request from KIM for ldisc installation.
|
||||
*/
|
||||
struct hci_command {
|
||||
u8 prefix;
|
||||
u16 opcode;
|
||||
u8 plen;
|
||||
u32 speed;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/*
|
||||
* header information used by st_ll.c
|
||||
*/
|
||||
|
||||
/* ST LL receiver states */
|
||||
#define ST_W4_PACKET_TYPE 0
|
||||
#define ST_BT_W4_EVENT_HDR 1
|
||||
#define ST_BT_W4_ACL_HDR 2
|
||||
#define ST_BT_W4_SCO_HDR 3
|
||||
#define ST_BT_W4_DATA 4
|
||||
#define ST_FM_W4_EVENT_HDR 5
|
||||
#define ST_GPS_W4_EVENT_HDR 6
|
||||
|
||||
/* ST LL state machines */
|
||||
#define ST_LL_ASLEEP 0
|
||||
#define ST_LL_ASLEEP_TO_AWAKE 1
|
||||
#define ST_LL_AWAKE 2
|
||||
#define ST_LL_AWAKE_TO_ASLEEP 3
|
||||
#define ST_LL_INVALID 4
|
||||
|
||||
/* different PM notifications coming from chip */
|
||||
#define LL_SLEEP_IND 0x30
|
||||
#define LL_SLEEP_ACK 0x31
|
||||
#define LL_WAKE_UP_IND 0x32
|
||||
#define LL_WAKE_UP_ACK 0x33
|
||||
|
||||
/* initialize and de-init ST LL */
|
||||
long st_ll_init(struct st_data_s *);
|
||||
long st_ll_deinit(struct st_data_s *);
|
||||
|
||||
/**
|
||||
* enable/disable ST LL along with KIM start/stop
|
||||
* called by ST Core
|
||||
*/
|
||||
void st_ll_enable(struct st_data_s *);
|
||||
void st_ll_disable(struct st_data_s *);
|
||||
|
||||
/**
|
||||
* various funcs used by ST core to set/get the various PM states
|
||||
* of the chip.
|
||||
*/
|
||||
unsigned long st_ll_getstate(struct st_data_s *);
|
||||
unsigned long st_ll_sleep_state(struct st_data_s *, unsigned char);
|
||||
void st_ll_wakeup(struct st_data_s *);
|
||||
|
||||
/*
|
||||
* header information used by st_core.c for FM and GPS
|
||||
* packet parsing, the bluetooth headers are already available
|
||||
* at net/bluetooth/
|
||||
*/
|
||||
|
||||
struct fm_event_hdr {
|
||||
u8 plen;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
#define FM_MAX_FRAME_SIZE 0xFF /* TODO: */
|
||||
#define FM_EVENT_HDR_SIZE 1 /* size of fm_event_hdr */
|
||||
#define ST_FM_CH8_PKT 0x8
|
||||
|
||||
/* gps stuff */
|
||||
struct gps_event_hdr {
|
||||
u8 opcode;
|
||||
u16 plen;
|
||||
} __attribute__ ((packed));
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
#endif /* TI_WILINK_ST_H */
|
||||
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Reference in New Issue
Block a user