1 /* 2 * linux/include/amba/bus.h 3 * 4 * This device type deals with ARM PrimeCells and anything else that 5 * presents a proper CID (0xB105F00D) at the end of the I/O register 6 * region or that is derived from a PrimeCell. 7 * 8 * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 #ifndef ASMARM_AMBA_H 15 #define ASMARM_AMBA_H 16 17 #define AMBA_NR_IRQS 2 18 19 struct amba_device { 20 struct device dev; 21 struct resource res; 22 u64 dma_mask; 23 unsigned int periphid; 24 unsigned int irq[AMBA_NR_IRQS]; 25 }; 26 27 struct amba_id { 28 unsigned int id; 29 unsigned int mask; 30 void *data; 31 }; 32 33 struct amba_driver { 34 struct device_driver drv; 35 int (*probe)(struct amba_device *, struct amba_id *); 36 int (*remove)(struct amba_device *); 37 void (*shutdown)(struct amba_device *); 38 int (*suspend)(struct amba_device *, pm_message_t); 39 int (*resume)(struct amba_device *); 40 struct amba_id *id_table; 41 }; 42 43 enum amba_vendor { 44 AMBA_VENDOR_ARM = 0x41, 45 AMBA_VENDOR_ST = 0x80, 46 }; 47 48 #define amba_get_drvdata(d) dev_get_drvdata(&d->dev) 49 #define amba_set_drvdata(d,p) dev_set_drvdata(&d->dev, p) 50 51 int amba_driver_register(struct amba_driver *); 52 void amba_driver_unregister(struct amba_driver *); 53 int amba_device_register(struct amba_device *, struct resource *); 54 void amba_device_unregister(struct amba_device *); 55 struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int); 56 int amba_request_regions(struct amba_device *, const char *); 57 void amba_release_regions(struct amba_device *); 58 59 #define amba_config(d) (((d)->periphid >> 24) & 0xff) 60 #define amba_rev(d) (((d)->periphid >> 20) & 0x0f) 61 #define amba_manf(d) (((d)->periphid >> 12) & 0xff) 62 #define amba_part(d) ((d)->periphid & 0xfff) 63 64 #endif 65