1 #ifndef _LINUX_EISA_H 2 #define _LINUX_EISA_H 3 4 #include <linux/ioport.h> 5 #include <linux/device.h> 6 7 #define EISA_SIG_LEN 8 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 /* The EISA signature, in ASCII form, null terminated */ 31 struct eisa_device_id { 32 char sig[EISA_SIG_LEN]; 33 unsigned long driver_data; 34 }; 35 36 /* There is not much we can say about an EISA device, apart from 37 * signature, slot number, and base address. dma_mask is set by 38 * default to parent device mask..*/ 39 40 struct eisa_device { 41 struct eisa_device_id id; 42 int slot; 43 int state; 44 unsigned long base_addr; 45 struct resource res[EISA_MAX_RESOURCES]; 46 u64 dma_mask; 47 struct device dev; /* generic device */ 48 #ifdef CONFIG_EISA_NAMES 49 char pretty_name[DEVICE_NAME_SIZE]; 50 #endif 51 }; 52 53 #define to_eisa_device(n) container_of(n, struct eisa_device, dev) 54 55 static inline int eisa_get_region_index (void *addr) 56 { 57 unsigned long x = (unsigned long) addr; 58 59 x &= 0xc00; 60 return (x >> 12); 61 } 62 63 struct eisa_driver { 64 const struct eisa_device_id *id_table; 65 struct device_driver driver; 66 }; 67 68 #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver) 69 70 extern struct bus_type eisa_bus_type; 71 int eisa_driver_register (struct eisa_driver *edrv); 72 void eisa_driver_unregister (struct eisa_driver *edrv); 73 74 /* Mimics pci.h... */ 75 static inline void *eisa_get_drvdata (struct eisa_device *edev) 76 { 77 return edev->dev.driver_data; 78 } 79 80 static inline void eisa_set_drvdata (struct eisa_device *edev, void *data) 81 { 82 edev->dev.driver_data = data; 83 } 84 85 /* The EISA root device. There's rumours about machines with multiple 86 * busses (PA-RISC ?), so we try to handle that. */ 87 88 struct eisa_root_device { 89 struct device *dev; /* Pointer to bridge device */ 90 struct resource *res; 91 unsigned long bus_base_addr; 92 int slots; /* Max slot number */ 93 int force_probe; /* Probe even when no slot 0 */ 94 u64 dma_mask; /* from bridge device */ 95 int bus_nr; /* Set by eisa_root_register */ 96 struct resource eisa_root_res; /* ditto */ 97 }; 98 99 int eisa_root_register (struct eisa_root_device *root); 100 101 #ifdef CONFIG_EISA 102 extern int EISA_bus; 103 #else 104 # define EISA_bus 0 105 #endif 106 107 #endif 108