| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * linux/drivers/mfd/mcp.h |
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| 4 | * |
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| 5 | * Copyright (C) 2001 Russell King, All Rights Reserved. |
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| 6 | */ |
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| 7 | #ifndef MCP_H |
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| 8 | #define MCP_H |
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| 9 | |
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| 10 | #include <linux/device.h> |
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| 11 | |
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| 12 | struct mcp_ops; |
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| 13 | |
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| 14 | struct mcp { |
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| 15 | struct module *owner; |
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| 16 | struct mcp_ops *ops; |
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| 17 | spinlock_t lock; |
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| 18 | int use_count; |
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| 19 | unsigned int sclk_rate; |
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| 20 | unsigned int rw_timeout; |
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| 21 | struct device attached_device; |
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| 22 | }; |
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| 23 | |
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| 24 | struct mcp_ops { |
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| 25 | void (*set_telecom_divisor)(struct mcp *, unsigned int); |
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| 26 | void (*set_audio_divisor)(struct mcp *, unsigned int); |
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| 27 | void (*reg_write)(struct mcp *, unsigned int, unsigned int); |
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| 28 | unsigned int (*reg_read)(struct mcp *, unsigned int); |
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| 29 | void (*enable)(struct mcp *); |
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| 30 | void (*disable)(struct mcp *); |
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| 31 | }; |
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| 32 | |
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| 33 | void mcp_set_telecom_divisor(struct mcp *, unsigned int); |
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| 34 | void mcp_set_audio_divisor(struct mcp *, unsigned int); |
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| 35 | void mcp_reg_write(struct mcp *, unsigned int, unsigned int); |
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| 36 | unsigned int mcp_reg_read(struct mcp *, unsigned int); |
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| 37 | void mcp_enable(struct mcp *); |
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| 38 | void mcp_disable(struct mcp *); |
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| 39 | #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) |
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| 40 | |
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| 41 | struct mcp *mcp_host_alloc(struct device *, size_t); |
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| 42 | int mcp_host_add(struct mcp *, void *); |
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| 43 | void mcp_host_del(struct mcp *); |
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| 44 | void mcp_host_free(struct mcp *); |
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| 45 | |
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| 46 | struct mcp_driver { |
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| 47 | struct device_driver drv; |
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| 48 | int (*probe)(struct mcp *); |
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| 49 | void (*remove)(struct mcp *); |
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| 50 | }; |
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| 51 | |
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| 52 | int mcp_driver_register(struct mcp_driver *); |
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| 53 | void mcp_driver_unregister(struct mcp_driver *); |
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| 54 | |
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| 55 | #define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device) |
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| 56 | #define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d) |
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| 57 | |
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| 58 | static inline void *mcp_priv(struct mcp *mcp) |
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| 59 | { |
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| 60 | return mcp + 1; |
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| 61 | } |
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| 62 | |
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| 63 | #endif |
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| 64 | |
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