1 /* 2 * include/linux/superhyway.h 3 * 4 * SuperHyway Bus definitions 5 * 6 * Copyright (C) 2004, 2005 Paul Mundt <lethal@linux-sh.org> 7 * 8 * This file is subject to the terms and conditions of the GNU General Public 9 * License. See the file "COPYING" in the main directory of this archive 10 * for more details. 11 */ 12 #ifndef __LINUX_SUPERHYWAY_H 13 #define __LINUX_SUPERHYWAY_H 14 15 #include <linux/device.h> 16 17 /* 18 * SuperHyway IDs 19 */ 20 #define SUPERHYWAY_DEVICE_ID_SH5_DMAC 0x0183 21 22 struct superhyway_vcr_info { 23 u8 perr_flags; /* P-port Error flags */ 24 u8 merr_flags; /* Module Error flags */ 25 u16 mod_vers; /* Module Version */ 26 u16 mod_id; /* Module ID */ 27 u8 bot_mb; /* Bottom Memory block */ 28 u8 top_mb; /* Top Memory block */ 29 }; 30 31 struct superhyway_ops { 32 int (*read_vcr)(unsigned long base, struct superhyway_vcr_info *vcr); 33 int (*write_vcr)(unsigned long base, struct superhyway_vcr_info vcr); 34 }; 35 36 struct superhyway_bus { 37 struct superhyway_ops *ops; 38 }; 39 40 extern struct superhyway_bus superhyway_channels[]; 41 42 struct superhyway_device_id { 43 unsigned int id; 44 unsigned long driver_data; 45 }; 46 47 struct superhyway_device; 48 extern struct bus_type superhyway_bus_type; 49 50 struct superhyway_driver { 51 char *name; 52 53 const struct superhyway_device_id *id_table; 54 struct device_driver drv; 55 56 int (*probe)(struct superhyway_device *dev, const struct superhyway_device_id *id); 57 void (*remove)(struct superhyway_device *dev); 58 }; 59 60 #define to_superhyway_driver(d) container_of((d), struct superhyway_driver, drv) 61 62 struct superhyway_device { 63 char name[32]; 64 65 struct device dev; 66 67 struct superhyway_device_id id; 68 struct superhyway_driver *drv; 69 struct superhyway_bus *bus; 70 71 int num_resources; 72 struct resource *resource; 73 struct superhyway_vcr_info vcr; 74 }; 75 76 #define to_superhyway_device(d) container_of((d), struct superhyway_device, dev) 77 78 #define superhyway_get_drvdata(d) dev_get_drvdata(&(d)->dev) 79 #define superhyway_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p)) 80 81 static inline int 82 superhyway_read_vcr(struct superhyway_device *dev, unsigned long base, 83 struct superhyway_vcr_info *vcr) 84 { 85 return dev->bus->ops->read_vcr(base, vcr); 86 } 87 88 static inline int 89 superhyway_write_vcr(struct superhyway_device *dev, unsigned long base, 90 struct superhyway_vcr_info vcr) 91 { 92 return dev->bus->ops->write_vcr(base, vcr); 93 } 94 95 extern int superhyway_scan_bus(struct superhyway_bus *); 96 97 /* drivers/sh/superhyway/superhyway.c */ 98 int superhyway_register_driver(struct superhyway_driver *); 99 void superhyway_unregister_driver(struct superhyway_driver *); 100 int superhyway_add_device(unsigned long base, struct superhyway_device *, struct superhyway_bus *); 101 int superhyway_add_devices(struct superhyway_bus *bus, struct superhyway_device **devices, int nr_devices); 102 103 /* drivers/sh/superhyway/superhyway-sysfs.c */ 104 extern const struct attribute_group *superhyway_dev_groups[]; 105 106 #endif /* __LINUX_SUPERHYWAY_H */ 107 108