Commit | Line | Data |
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c869c75c SA |
1 | /* |
2 | * omap-mbox.h: OMAP mailbox internal definitions | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
340a614a | 8 | |
c869c75c SA |
9 | #ifndef OMAP_MBOX_H |
10 | #define OMAP_MBOX_H | |
340a614a | 11 | |
b3e69146 | 12 | #include <linux/device.h> |
c869c75c | 13 | #include <linux/interrupt.h> |
b5bebe41 | 14 | #include <linux/kfifo.h> |
c869c75c SA |
15 | #include <linux/spinlock.h> |
16 | #include <linux/workqueue.h> | |
17 | #include <linux/omap-mailbox.h> | |
340a614a HD |
18 | |
19 | typedef int __bitwise omap_mbox_type_t; | |
20 | #define OMAP_MBOX_TYPE1 ((__force omap_mbox_type_t) 1) | |
21 | #define OMAP_MBOX_TYPE2 ((__force omap_mbox_type_t) 2) | |
22 | ||
23 | struct omap_mbox_ops { | |
24 | omap_mbox_type_t type; | |
25 | int (*startup)(struct omap_mbox *mbox); | |
26 | void (*shutdown)(struct omap_mbox *mbox); | |
27 | /* fifo */ | |
28 | mbox_msg_t (*fifo_read)(struct omap_mbox *mbox); | |
29 | void (*fifo_write)(struct omap_mbox *mbox, mbox_msg_t msg); | |
30 | int (*fifo_empty)(struct omap_mbox *mbox); | |
31 | int (*fifo_full)(struct omap_mbox *mbox); | |
32 | /* irq */ | |
5ed8d32e S |
33 | void (*enable_irq)(struct omap_mbox *mbox, |
34 | omap_mbox_irq_t irq); | |
35 | void (*disable_irq)(struct omap_mbox *mbox, | |
36 | omap_mbox_irq_t irq); | |
340a614a HD |
37 | void (*ack_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq); |
38 | int (*is_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq); | |
c75ee752 HD |
39 | /* ctx */ |
40 | void (*save_ctx)(struct omap_mbox *mbox); | |
41 | void (*restore_ctx)(struct omap_mbox *mbox); | |
340a614a HD |
42 | }; |
43 | ||
44 | struct omap_mbox_queue { | |
45 | spinlock_t lock; | |
b5bebe41 | 46 | struct kfifo fifo; |
340a614a | 47 | struct work_struct work; |
5ed8d32e | 48 | struct tasklet_struct tasklet; |
340a614a | 49 | struct omap_mbox *mbox; |
d2295042 | 50 | bool full; |
340a614a HD |
51 | }; |
52 | ||
53 | struct omap_mbox { | |
b8a7cf8e | 54 | const char *name; |
4a102b4d | 55 | int irq; |
340a614a | 56 | struct omap_mbox_queue *txq, *rxq; |
340a614a | 57 | struct omap_mbox_ops *ops; |
f48cca87 | 58 | struct device *dev; |
340a614a | 59 | void *priv; |
58256307 | 60 | int use_count; |
c869c75c | 61 | struct blocking_notifier_head notifier; |
340a614a HD |
62 | }; |
63 | ||
9c80c8cd FC |
64 | int omap_mbox_register(struct device *parent, struct omap_mbox **); |
65 | int omap_mbox_unregister(void); | |
340a614a | 66 | |
c869c75c | 67 | #endif /* OMAP_MBOX_H */ |