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-rw-r--r--arch/arm/plat-omap/include/mach/mailbox.h96
1 files changed, 0 insertions, 96 deletions
diff --git a/arch/arm/plat-omap/include/mach/mailbox.h b/arch/arm/plat-omap/include/mach/mailbox.h
deleted file mode 100644
index b7a6991814ec..000000000000
--- a/arch/arm/plat-omap/include/mach/mailbox.h
+++ /dev/null
@@ -1,96 +0,0 @@
1/* mailbox.h */
2
3#ifndef MAILBOX_H
4#define MAILBOX_H
5
6#include <linux/wait.h>
7#include <linux/workqueue.h>
8#include <linux/blkdev.h>
9
10typedef u32 mbox_msg_t;
11typedef void (mbox_receiver_t)(mbox_msg_t msg);
12struct omap_mbox;
13
14typedef int __bitwise omap_mbox_irq_t;
15#define IRQ_TX ((__force omap_mbox_irq_t) 1)
16#define IRQ_RX ((__force omap_mbox_irq_t) 2)
17
18typedef int __bitwise omap_mbox_type_t;
19#define OMAP_MBOX_TYPE1 ((__force omap_mbox_type_t) 1)
20#define OMAP_MBOX_TYPE2 ((__force omap_mbox_type_t) 2)
21
22struct omap_mbox_ops {
23 omap_mbox_type_t type;
24 int (*startup)(struct omap_mbox *mbox);
25 void (*shutdown)(struct omap_mbox *mbox);
26 /* fifo */
27 mbox_msg_t (*fifo_read)(struct omap_mbox *mbox);
28 void (*fifo_write)(struct omap_mbox *mbox, mbox_msg_t msg);
29 int (*fifo_empty)(struct omap_mbox *mbox);
30 int (*fifo_full)(struct omap_mbox *mbox);
31 /* irq */
32 void (*enable_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
33 void (*disable_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
34 void (*ack_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
35 int (*is_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
36 /* ctx */
37 void (*save_ctx)(struct omap_mbox *mbox);
38 void (*restore_ctx)(struct omap_mbox *mbox);
39};
40
41struct omap_mbox_queue {
42 spinlock_t lock;
43 struct request_queue *queue;
44 struct work_struct work;
45 int (*callback)(void *);
46 struct omap_mbox *mbox;
47};
48
49struct omap_mbox {
50 char *name;
51 unsigned int irq;
52
53 struct omap_mbox_queue *txq, *rxq;
54
55 struct omap_mbox_ops *ops;
56
57 mbox_msg_t seq_snd, seq_rcv;
58
59 struct device *dev;
60
61 struct omap_mbox *next;
62 void *priv;
63
64 void (*err_notify)(void);
65};
66
67int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg, void *);
68void omap_mbox_init_seq(struct omap_mbox *);
69
70struct omap_mbox *omap_mbox_get(const char *);
71void omap_mbox_put(struct omap_mbox *);
72
73int omap_mbox_register(struct device *parent, struct omap_mbox *);
74int omap_mbox_unregister(struct omap_mbox *);
75
76static inline void omap_mbox_save_ctx(struct omap_mbox *mbox)
77{
78 if (!mbox->ops->save_ctx) {
79 dev_err(mbox->dev, "%s:\tno save\n", __func__);
80 return;
81 }
82
83 mbox->ops->save_ctx(mbox);
84}
85
86static inline void omap_mbox_restore_ctx(struct omap_mbox *mbox)
87{
88 if (!mbox->ops->restore_ctx) {
89 dev_err(mbox->dev, "%s:\tno restore\n", __func__);
90 return;
91 }
92
93 mbox->ops->restore_ctx(mbox);
94}
95
96#endif /* MAILBOX_H */