LCOV - code coverage report
Current view: top level - include/linux - eisa.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 2 100.0 %
Date: 2017-01-25 Functions: 1 1 100.0 %

          Line data    Source code
       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           4 :         dev_set_drvdata(&edev->dev, data);
      87           4 : }
      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

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