1 /* 2 * linux/drivers/mfd/mcp.h 3 * 4 * Copyright (C) 2001 Russell King, All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License. 9 */ 10 #ifndef MCP_H 11 #define MCP_H 12 13 #include <mach/dma.h> 14 15 struct mcp_ops; 16 17 struct mcp { 18 struct module *owner; 19 struct mcp_ops *ops; 20 spinlock_t lock; 21 int use_count; 22 unsigned int sclk_rate; 23 unsigned int rw_timeout; 24 dma_device_t dma_audio_rd; 25 dma_device_t dma_audio_wr; 26 dma_device_t dma_telco_rd; 27 dma_device_t dma_telco_wr; 28 struct device attached_device; 29 int gpio_base; 30 }; 31 32 struct mcp_ops { 33 void (*set_telecom_divisor)(struct mcp *, unsigned int); 34 void (*set_audio_divisor)(struct mcp *, unsigned int); 35 void (*reg_write)(struct mcp *, unsigned int, unsigned int); 36 unsigned int (*reg_read)(struct mcp *, unsigned int); 37 void (*enable)(struct mcp *); 38 void (*disable)(struct mcp *); 39 }; 40 41 void mcp_set_telecom_divisor(struct mcp *, unsigned int); 42 void mcp_set_audio_divisor(struct mcp *, unsigned int); 43 void mcp_reg_write(struct mcp *, unsigned int, unsigned int); 44 unsigned int mcp_reg_read(struct mcp *, unsigned int); 45 void mcp_enable(struct mcp *); 46 void mcp_disable(struct mcp *); 47 #define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate) 48 49 struct mcp *mcp_host_alloc(struct device *, size_t); 50 int mcp_host_register(struct mcp *); 51 void mcp_host_unregister(struct mcp *); 52 53 struct mcp_driver { 54 struct device_driver drv; 55 int (*probe)(struct mcp *); 56 void (*remove)(struct mcp *); 57 int (*suspend)(struct mcp *, pm_message_t); 58 int (*resume)(struct mcp *); 59 }; 60 61 int mcp_driver_register(struct mcp_driver *); 62 void mcp_driver_unregister(struct mcp_driver *); 63 64 #define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device) 65 #define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d) 66 67 #define mcp_priv(mcp) ((void *)((mcp)+1)) 68 69 #endif 70