e5d1d7e3ec
The struct mbox_client supplied to mbox_request_channel() is const but it is stored in the channel in a non-constant member causing compiler warnings. While the mailbox API should treat the struct mailbox_client as const itself the struct is passed back to the channel in callbacks without a const so we need to either remove the const, change the callbacks to take const or cast the const away when doing callbacks. Take the simplest option and just remove the const. Signed-off-by: Mark Brown <broonie@linaro.org>
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2014 Linaro Ltd.
|
|
* Author: Jassi Brar <jassisinghbrar@gmail.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.
|
|
*/
|
|
|
|
#ifndef __MAILBOX_CLIENT_H
|
|
#define __MAILBOX_CLIENT_H
|
|
|
|
#include <linux/of.h>
|
|
|
|
struct mbox_chan;
|
|
|
|
/**
|
|
* struct mbox_client - User of a mailbox
|
|
* @dev: The client device
|
|
* @chan_name: The "controller:channel" this client wants
|
|
* @rx_callback: Atomic callback to provide client the data received
|
|
* @tx_done: Atomic callback to tell client of data transmission
|
|
* @tx_block: If the mbox_send_message should block until data is
|
|
* transmitted.
|
|
* @tx_tout: Max block period in ms before TX is assumed failure
|
|
* @knows_txdone: if the client could run the TX state machine. Usually
|
|
* if the client receives some ACK packet for transmission.
|
|
* Unused if the controller already has TX_Done/RTR IRQ.
|
|
*/
|
|
struct mbox_client {
|
|
struct device *dev;
|
|
const char *chan_name;
|
|
void (*rx_callback)(struct mbox_client *cl, void *mssg);
|
|
void (*tx_done)(struct mbox_client *cl, void *mssg, int r);
|
|
bool tx_block;
|
|
unsigned long tx_tout;
|
|
bool knows_txdone;
|
|
};
|
|
|
|
struct mbox_chan *mbox_request_channel(struct mbox_client *cl);
|
|
int mbox_send_message(struct mbox_chan *chan, void *mssg);
|
|
void mbox_client_txdone(struct mbox_chan *chan, int r);
|
|
bool mbox_client_peek_data(struct mbox_chan *chan);
|
|
void mbox_free_channel(struct mbox_chan *chan);
|
|
|
|
#endif /* __MAILBOX_CLIENT_H */
|