cregit-Linux how code gets into the kernel

Release 4.12 include/linux/mailbox_client.h

Directory: include/linux
 * Copyright (C) 2013-2014 Linaro Ltd.
 * Author: Jassi Brar <>
 * 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.



#include <linux/of.h>
#include <linux/device.h>

struct mbox_chan;

 * struct mbox_client - User of a mailbox
 * @dev:                The client device
 * @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.
 * @rx_callback:        Atomic callback to provide client the data received
 * @tx_prepare:         Atomic callback to ask client to prepare the payload
 *                      before initiating the transmission if required.
 * @tx_done:            Atomic callback to tell client of data transmission

struct mbox_client {
struct device *dev;
bool tx_block;
unsigned long tx_tout;
bool knows_txdone;

void (*rx_callback)(struct mbox_client *cl, void *mssg);
void (*tx_prepare)(struct mbox_client *cl, void *mssg);
void (*tx_done)(struct mbox_client *cl, void *mssg, int r);

struct mbox_chan *mbox_request_channel_byname(struct mbox_client *cl,
					      const char *name);
struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index);
int mbox_send_message(struct mbox_chan *chan, void *mssg);
void mbox_client_txdone(struct mbox_chan *chan, int r); /* atomic */
bool mbox_client_peek_data(struct mbox_chan *chan); /* atomic */
void mbox_free_channel(struct mbox_chan *chan); /* may sleep */

#endif /* __MAILBOX_CLIENT_H */

Overall Contributors

Jassi Brar13480.24%133.33%
Sudeep Holla1710.18%133.33%
Lee Jones169.58%133.33%
Directory: include/linux
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