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Diffstat (limited to 'arch/arm/mach-ux500/include/mach/mbox-db5500.h')
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/mbox-db5500.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/arch/arm/mach-ux500/include/mach/mbox-db5500.h b/arch/arm/mach-ux500/include/mach/mbox-db5500.h deleted file mode 100644 index 7f9da4d2fbd..00000000000 --- a/arch/arm/mach-ux500/include/mach/mbox-db5500.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * Author: Stefan Nilsson <stefan.xk.nilsson@stericsson.com> for ST-Ericsson. - * Author: Martin Persson <martin.persson@stericsson.com> for ST-Ericsson. - * License terms: GNU General Public License (GPL), version 2. - */ - -#ifndef __INC_STE_MBOX_H -#define __INC_STE_MBOX_H - -#define MBOX_BUF_SIZE 16 -#define MBOX_NAME_SIZE 8 - -/** - * mbox_recv_cb_t - Definition of the mailbox callback. - * @mbox_msg: The mailbox message. - * @priv: The clients private data as specified in the call to mbox_setup. - * - * This function will be called upon reception of new mailbox messages. - */ -typedef void mbox_recv_cb_t (u32 mbox_msg, void *priv); - -/** - * struct mbox - Mailbox instance struct - * @list: Linked list head. - * @pdev: Pointer to device struct. - * @cb: Callback function. Will be called - * when new data is received. - * @client_data: Clients private data. Will be sent back - * in the callback function. - * @virtbase_peer: Virtual address for outgoing mailbox. - * @virtbase_local: Virtual address for incoming mailbox. - * @buffer: Then internal queue for outgoing messages. - * @name: Name of this mailbox. - * @buffer_available: Completion variable to achieve "blocking send". - * This variable will be signaled when there is - * internal buffer space available. - * @client_blocked: To keep track if any client is currently - * blocked. - * @lock: Spinlock to protect this mailbox instance. - * @write_index: Index in internal buffer to write to. - * @read_index: Index in internal buffer to read from. - * @allocated: Indicates whether this particular mailbox - * id has been allocated by someone. - */ -struct mbox { - struct list_head list; - struct platform_device *pdev; - mbox_recv_cb_t *cb; - void *client_data; - void __iomem *virtbase_peer; - void __iomem *virtbase_local; - u32 buffer[MBOX_BUF_SIZE]; - char name[MBOX_NAME_SIZE]; - struct completion buffer_available; - u8 client_blocked; - spinlock_t lock; - u8 write_index; - u8 read_index; - bool allocated; -}; - -/** - * mbox_setup - Set up a mailbox and return its instance. - * @mbox_id: The ID number of the mailbox. 0 or 1 for modem CPU, - * 2 for modem DSP. - * @mbox_cb: Pointer to the callback function to be called when a new message - * is received. - * @priv: Client user data which will be returned in the callback. - * - * Returns a mailbox instance to be specified in subsequent calls to mbox_send. - */ -struct mbox *mbox_setup(u8 mbox_id, mbox_recv_cb_t *mbox_cb, void *priv); - -/** - * mbox_send - Send a mailbox message. - * @mbox: Mailbox instance (returned by mbox_setup) - * @mbox_msg: The mailbox message to send. - * @block: Specifies whether this call will block until send is possible, - * or return an error if the mailbox buffer is full. - * - * Returns 0 on success or a negative error code on error. -ENOMEM indicates - * that the internal buffer is full and you have to try again later (or - * specify "block" in order to block until send is possible). - */ -int mbox_send(struct mbox *mbox, u32 mbox_msg, bool block); - -#endif /*INC_STE_MBOX_H*/ |