| /* |
| * 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 */ |
