projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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; |
| 340a614a | 55 | unsigned 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 */ |