linux-hardened/drivers/mfd/mcp.h
Russell King a4e137ab14 [MFD] Add multimedia communication port core support
Add support for the core of the multimedia communication port
framework.  This is a port used to communicate with devices
with two DMA paths and a control path.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-18 10:06:59 +01:00

66 lines
1.9 KiB
C

/*
* linux/drivers/mfd/mcp.h
*
* Copyright (C) 2001 Russell King, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#ifndef MCP_H
#define MCP_H
struct mcp_ops;
struct mcp {
struct module *owner;
struct mcp_ops *ops;
spinlock_t lock;
int use_count;
unsigned int sclk_rate;
unsigned int rw_timeout;
dma_device_t dma_audio_rd;
dma_device_t dma_audio_wr;
dma_device_t dma_telco_rd;
dma_device_t dma_telco_wr;
struct device attached_device;
};
struct mcp_ops {
void (*set_telecom_divisor)(struct mcp *, unsigned int);
void (*set_audio_divisor)(struct mcp *, unsigned int);
void (*reg_write)(struct mcp *, unsigned int, unsigned int);
unsigned int (*reg_read)(struct mcp *, unsigned int);
void (*enable)(struct mcp *);
void (*disable)(struct mcp *);
};
void mcp_set_telecom_divisor(struct mcp *, unsigned int);
void mcp_set_audio_divisor(struct mcp *, unsigned int);
void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
unsigned int mcp_reg_read(struct mcp *, unsigned int);
void mcp_enable(struct mcp *);
void mcp_disable(struct mcp *);
#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
struct mcp *mcp_host_alloc(struct device *, size_t);
int mcp_host_register(struct mcp *);
void mcp_host_unregister(struct mcp *);
struct mcp_driver {
struct device_driver drv;
int (*probe)(struct mcp *);
void (*remove)(struct mcp *);
int (*suspend)(struct mcp *, pm_message_t);
int (*resume)(struct mcp *);
};
int mcp_driver_register(struct mcp_driver *);
void mcp_driver_unregister(struct mcp_driver *);
#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
#define mcp_priv(mcp) ((void *)((mcp)+1))
#endif