| Jassi Brar | 95115d4 | 2014-06-12 22:31:19 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 Linaro Ltd. |
| 3 | * Author: Jassi Brar <jassisinghbrar@gmail.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | */ |
| 9 | |
| 10 | #ifndef __MAILBOX_CLIENT_H |
| 11 | #define __MAILBOX_CLIENT_H |
| 12 | |
| 13 | #include <linux/of.h> |
| 14 | |
| 15 | struct mbox_chan; |
| 16 | |
| 17 | /** |
| 18 | * struct mbox_client - User of a mailbox |
| 19 | * @dev: The client device |
| 20 | * @chan_name: The "controller:channel" this client wants |
| 21 | * @rx_callback: Atomic callback to provide client the data received |
| 22 | * @tx_done: Atomic callback to tell client of data transmission |
| 23 | * @tx_block: If the mbox_send_message should block until data is |
| 24 | * transmitted. |
| 25 | * @tx_tout: Max block period in ms before TX is assumed failure |
| 26 | * @knows_txdone: if the client could run the TX state machine. Usually |
| 27 | * if the client receives some ACK packet for transmission. |
| 28 | * Unused if the controller already has TX_Done/RTR IRQ. |
| 29 | */ |
| 30 | struct mbox_client { |
| 31 | struct device *dev; |
| 32 | const char *chan_name; |
| 33 | void (*rx_callback)(struct mbox_client *cl, void *mssg); |
| 34 | void (*tx_done)(struct mbox_client *cl, void *mssg, int r); |
| 35 | bool tx_block; |
| 36 | unsigned long tx_tout; |
| 37 | bool knows_txdone; |
| 38 | }; |
| 39 | |
| Mark Brown | 4bd3380 | 2014-06-13 21:40:45 +0100 | [diff] [blame^] | 40 | struct mbox_chan *mbox_request_channel(struct mbox_client *cl); |
| Jassi Brar | 95115d4 | 2014-06-12 22:31:19 +0530 | [diff] [blame] | 41 | int mbox_send_message(struct mbox_chan *chan, void *mssg); |
| 42 | void mbox_client_txdone(struct mbox_chan *chan, int r); |
| Mark Brown | 087e563 | 2014-06-13 21:36:34 +0100 | [diff] [blame] | 43 | bool mbox_client_peek_data(struct mbox_chan *chan); |
| Jassi Brar | 95115d4 | 2014-06-12 22:31:19 +0530 | [diff] [blame] | 44 | void mbox_free_channel(struct mbox_chan *chan); |
| 45 | |
| 46 | #endif /* __MAILBOX_CLIENT_H */ |