64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* linux/drivers/mfd/mcp.h
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001 Russell King, All Rights Reserved.
|
||
|
|
*/
|
||
|
|
#ifndef MCP_H
|
||
|
|
#define MCP_H
|
||
|
|
|
||
|
|
#include <linux/device.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;
|
||
|
|
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_add(struct mcp *, void *);
|
||
|
|
void mcp_host_del(struct mcp *);
|
||
|
|
void mcp_host_free(struct mcp *);
|
||
|
|
|
||
|
|
struct mcp_driver {
|
||
|
|
struct device_driver drv;
|
||
|
|
int (*probe)(struct mcp *);
|
||
|
|
void (*remove)(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)
|
||
|
|
|
||
|
|
static inline void *mcp_priv(struct mcp *mcp)
|
||
|
|
{
|
||
|
|
return mcp + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|