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 34 struct 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 49 static 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 57 struct 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 67 extern struct bus_type eisa_bus_type; 68 int eisa_driver_register (struct eisa_driver *edrv); 69 void eisa_driver_unregister (struct eisa_driver *edrv); 70 71 #else /* !CONFIG_EISA */ 72 73 static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; } 74 static inline void eisa_driver_unregister (struct eisa_driver *edrv) { } 75 76 #endif /* !CONFIG_EISA */ 77 78 /* Mimics pci.h... */ 79 static inline void *eisa_get_drvdata (struct eisa_device *edev) 80 { 81 return dev_get_drvdata(&edev->dev); 82 } 83 84 static 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 92 struct 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 }; 102 103 int eisa_root_register (struct eisa_root_device *root); 104 105 #ifdef CONFIG_EISA 106 extern int EISA_bus; 107 #else 108 # define EISA_bus 0 109 #endif 110 111 #endif 112