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/*
* mailbox: interprocessor communication module
*
* 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.
*/
#ifndef MAILBOX_H
#define MAILBOX_H
struct mailbox;
typedef int __bitwise mailbox_irq_t;
#define IRQ_TX ((__force mailbox_irq_t) 1)
#define IRQ_RX ((__force mailbox_irq_t) 2)
struct mailbox_msg {
int size;
u32 header;
void *pdata;
};
#define MAILBOX_FILL_MSG(_msg, _header, _pdata, _size) { \
_msg.header = _header; \
_msg.pdata = (void *)_pdata; \
_msg.size = _size; \
}
int mailbox_msg_send(struct mailbox *, struct mailbox_msg *msg);
struct mailbox_msg *mailbox_msg_send_receive_no_irq(struct mailbox *,
struct mailbox_msg *msg);
int mailbox_msg_send_no_irq(struct mailbox *, struct mailbox_msg *msg);
struct mailbox *mailbox_get(const char *, struct notifier_block *nb);
void mailbox_put(struct mailbox *mbox, struct notifier_block *nb);
void mailbox_save_ctx(struct mailbox *mbox);
void mailbox_restore_ctx(struct mailbox *mbox);
void mailbox_enable_irq(struct mailbox *mbox, mailbox_irq_t irq);
void mailbox_disable_irq(struct mailbox *mbox, mailbox_irq_t irq);
#endif /* MAILBOX_H */
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