1 files changed, 111 insertions, 0 deletions
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
new file mode 100644
index 000000000..6925249a5
--- /dev/null
+++ b/include/linux/eisa.h
@@ -0,0 +1,111 @@
+#ifndef _LINUX_EISA_H
+#define _LINUX_EISA_H
+
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+#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
+
+/* 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[50];
+#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)
+
+/* These external functions are only available when EISA support is enabled. */
+#ifdef CONFIG_EISA
+
+extern struct bus_type eisa_bus_type;
+int eisa_driver_register (struct eisa_driver *edrv);
+void eisa_driver_unregister (struct eisa_driver *edrv);
+
+#else /* !CONFIG_EISA */
+
+static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; }
+static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
+
+#endif /* !CONFIG_EISA */
+
+/* Mimics pci.h... */
+static inline void *eisa_get_drvdata (struct eisa_device *edev)
+{
+        return dev_get_drvdata(&edev->dev);
+}
+
+static inline void eisa_set_drvdata (struct eisa_device *edev, void *data)
+{
+        dev_set_drvdata(&edev->dev, 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