eisa.h
上传用户:szlgq88
上传日期:2009-04-28
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文件大小:3k
- #ifndef _LINUX_EISA_H
- #define _LINUX_EISA_H
- #include <linux/ioport.h>
- #include <linux/device.h>
- #define EISA_SIG_LEN 8
- #define EISA_MAX_SLOTS 8
- #define EISA_MAX_RESOURCES 4
- /* A few EISA constants/offsets... */
- #define EISA_DMA1_STATUS 8
- #define EISA_INT1_CTRL 0x20
- #define EISA_INT1_MASK 0x21
- #define EISA_INT2_CTRL 0xA0
- #define EISA_INT2_MASK 0xA1
- #define EISA_DMA2_STATUS 0xD0
- #define EISA_DMA2_WRITE_SINGLE 0xD4
- #define EISA_EXT_NMI_RESET_CTRL 0x461
- #define EISA_INT1_EDGE_LEVEL 0x4D0
- #define EISA_INT2_EDGE_LEVEL 0x4D1
- #define EISA_VENDOR_ID_OFFSET 0xC80
- #define EISA_CONFIG_OFFSET 0xC84
- #define EISA_CONFIG_ENABLED 1
- #define EISA_CONFIG_FORCED 2
- /* The EISA signature, in ASCII form, null terminated */
- struct eisa_device_id {
- char sig[EISA_SIG_LEN];
- unsigned long driver_data;
- };
- /* There is not much we can say about an EISA device, apart from
- * signature, slot number, and base address. dma_mask is set by
- * default to parent device mask..*/
- struct eisa_device {
- struct eisa_device_id id;
- int slot;
- int state;
- unsigned long base_addr;
- struct resource res[EISA_MAX_RESOURCES];
- u64 dma_mask;
- struct device dev; /* generic device */
- #ifdef CONFIG_EISA_NAMES
- char pretty_name[DEVICE_NAME_SIZE];
- #endif
- };
- #define to_eisa_device(n) container_of(n, struct eisa_device, dev)
- static inline int eisa_get_region_index (void *addr)
- {
- unsigned long x = (unsigned long) addr;
- x &= 0xc00;
- return (x >> 12);
- }
- struct eisa_driver {
- const struct eisa_device_id *id_table;
- struct device_driver driver;
- };
- #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver)
- extern struct bus_type eisa_bus_type;
- int eisa_driver_register (struct eisa_driver *edrv);
- void eisa_driver_unregister (struct eisa_driver *edrv);
- /* Mimics pci.h... */
- static inline void *eisa_get_drvdata (struct eisa_device *edev)
- {
- return edev->dev.driver_data;
- }
- static inline void eisa_set_drvdata (struct eisa_device *edev, void *data)
- {
- edev->dev.driver_data = data;
- }
- /* The EISA root device. There's rumours about machines with multiple
- * busses (PA-RISC ?), so we try to handle that. */
- struct eisa_root_device {
- struct device *dev; /* Pointer to bridge device */
- struct resource *res;
- unsigned long bus_base_addr;
- int slots; /* Max slot number */
- int force_probe; /* Probe even when no slot 0 */
- u64 dma_mask; /* from bridge device */
- int bus_nr; /* Set by eisa_root_register */
- struct resource eisa_root_res; /* ditto */
- };
- int eisa_root_register (struct eisa_root_device *root);
- #ifdef CONFIG_EISA
- extern int EISA_bus;
- #else
- # define EISA_bus 0
- #endif
- #endif