summaryrefslogtreecommitdiff
path: root/include/linux/superhyway.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/superhyway.h')
-rw-r--r--include/linux/superhyway.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/include/linux/superhyway.h b/include/linux/superhyway.h
new file mode 100644
index 000000000..17ea468fa
--- /dev/null
+++ b/include/linux/superhyway.h
@@ -0,0 +1,107 @@
+/*
+ * include/linux/superhyway.h
+ *
+ * SuperHyway Bus definitions
+ *
+ * Copyright (C) 2004, 2005 Paul Mundt <lethal@linux-sh.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __LINUX_SUPERHYWAY_H
+#define __LINUX_SUPERHYWAY_H
+
+#include <linux/device.h>
+
+/*
+ * SuperHyway IDs
+ */
+#define SUPERHYWAY_DEVICE_ID_SH5_DMAC 0x0183
+
+struct superhyway_vcr_info {
+ u8 perr_flags; /* P-port Error flags */
+ u8 merr_flags; /* Module Error flags */
+ u16 mod_vers; /* Module Version */
+ u16 mod_id; /* Module ID */
+ u8 bot_mb; /* Bottom Memory block */
+ u8 top_mb; /* Top Memory block */
+};
+
+struct superhyway_ops {
+ int (*read_vcr)(unsigned long base, struct superhyway_vcr_info *vcr);
+ int (*write_vcr)(unsigned long base, struct superhyway_vcr_info vcr);
+};
+
+struct superhyway_bus {
+ struct superhyway_ops *ops;
+};
+
+extern struct superhyway_bus superhyway_channels[];
+
+struct superhyway_device_id {
+ unsigned int id;
+ unsigned long driver_data;
+};
+
+struct superhyway_device;
+extern struct bus_type superhyway_bus_type;
+
+struct superhyway_driver {
+ char *name;
+
+ const struct superhyway_device_id *id_table;
+ struct device_driver drv;
+
+ int (*probe)(struct superhyway_device *dev, const struct superhyway_device_id *id);
+ void (*remove)(struct superhyway_device *dev);
+};
+
+#define to_superhyway_driver(d) container_of((d), struct superhyway_driver, drv)
+
+struct superhyway_device {
+ char name[32];
+
+ struct device dev;
+
+ struct superhyway_device_id id;
+ struct superhyway_driver *drv;
+ struct superhyway_bus *bus;
+
+ int num_resources;
+ struct resource *resource;
+ struct superhyway_vcr_info vcr;
+};
+
+#define to_superhyway_device(d) container_of((d), struct superhyway_device, dev)
+
+#define superhyway_get_drvdata(d) dev_get_drvdata(&(d)->dev)
+#define superhyway_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p))
+
+static inline int
+superhyway_read_vcr(struct superhyway_device *dev, unsigned long base,
+ struct superhyway_vcr_info *vcr)
+{
+ return dev->bus->ops->read_vcr(base, vcr);
+}
+
+static inline int
+superhyway_write_vcr(struct superhyway_device *dev, unsigned long base,
+ struct superhyway_vcr_info vcr)
+{
+ return dev->bus->ops->write_vcr(base, vcr);
+}
+
+extern int superhyway_scan_bus(struct superhyway_bus *);
+
+/* drivers/sh/superhyway/superhyway.c */
+int superhyway_register_driver(struct superhyway_driver *);
+void superhyway_unregister_driver(struct superhyway_driver *);
+int superhyway_add_device(unsigned long base, struct superhyway_device *, struct superhyway_bus *);
+int superhyway_add_devices(struct superhyway_bus *bus, struct superhyway_device **devices, int nr_devices);
+
+/* drivers/sh/superhyway/superhyway-sysfs.c */
+extern struct device_attribute superhyway_dev_attrs[];
+
+#endif /* __LINUX_SUPERHYWAY_H */
+