1#ifndef _LINUX_EISA_H 2#define _LINUX_EISA_H 3 4#include <linux/ioport.h> 5#include <linux/device.h> 6#include <linux/mod_devicetable.h> 7 8#define EISA_MAX_SLOTS 8 9 10#define EISA_MAX_RESOURCES 4 11 12/* A few EISA constants/offsets... */ 13 14#define EISA_DMA1_STATUS 8 15#define EISA_INT1_CTRL 0x20 16#define EISA_INT1_MASK 0x21 17#define EISA_INT2_CTRL 0xA0 18#define EISA_INT2_MASK 0xA1 19#define EISA_DMA2_STATUS 0xD0 20#define EISA_DMA2_WRITE_SINGLE 0xD4 21#define EISA_EXT_NMI_RESET_CTRL 0x461 22#define EISA_INT1_EDGE_LEVEL 0x4D0 23#define EISA_INT2_EDGE_LEVEL 0x4D1 24#define EISA_VENDOR_ID_OFFSET 0xC80 25#define EISA_CONFIG_OFFSET 0xC84 26 27#define EISA_CONFIG_ENABLED 1 28#define EISA_CONFIG_FORCED 2 29 30/* There is not much we can say about an EISA device, apart from 31 * signature, slot number, and base address. dma_mask is set by 32 * default to parent device mask..*/ 33 34struct eisa_device { 35 struct eisa_device_id id; 36 int slot; 37 int state; 38 unsigned long base_addr; 39 struct resource res[EISA_MAX_RESOURCES]; 40 u64 dma_mask; 41 struct device dev; /* generic device */ 42#ifdef CONFIG_EISA_NAMES 43 char pretty_name[50]; 44#endif 45}; 46 47#define to_eisa_device(n) container_of(n, struct eisa_device, dev) 48 49static inline int eisa_get_region_index (void *addr) 50{ 51 unsigned long x = (unsigned long) addr; 52 53 x &= 0xc00; 54 return (x >> 12); 55} 56 57struct eisa_driver { 58 const struct eisa_device_id *id_table; 59 struct device_driver driver; 60}; 61 62#define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver) 63 64/* These external functions are only available when EISA support is enabled. */ 65#ifdef CONFIG_EISA 66 67extern struct bus_type eisa_bus_type; 68int eisa_driver_register (struct eisa_driver *edrv); 69void eisa_driver_unregister (struct eisa_driver *edrv); 70 71#else /* !CONFIG_EISA */ 72 73static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; } 74static inline void eisa_driver_unregister (struct eisa_driver *edrv) { } 75 76#endif /* !CONFIG_EISA */ 77 78/* Mimics pci.h... */ 79static inline void *eisa_get_drvdata (struct eisa_device *edev) 80{ 81 return dev_get_drvdata(&edev->dev); 82} 83 84static inline void eisa_set_drvdata (struct eisa_device *edev, void *data) 85{ 86 dev_set_drvdata(&edev->dev, data); 87} 88 89/* The EISA root device. There's rumours about machines with multiple 90 * busses (PA-RISC ?), so we try to handle that. */ 91 92struct eisa_root_device { 93 struct device *dev; /* Pointer to bridge device */ 94 struct resource *res; 95 unsigned long bus_base_addr; 96 int slots; /* Max slot number */ 97 int force_probe; /* Probe even when no slot 0 */ 98 u64 dma_mask; /* from bridge device */ 99 int bus_nr; /* Set by eisa_root_register */ 100 struct resource eisa_root_res; /* ditto */ 101}; 102 103int eisa_root_register (struct eisa_root_device *root); 104 105#ifdef CONFIG_EISA 106extern int EISA_bus; 107#else 108# define EISA_bus 0 109#endif 110 111#endif 112