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@@ -0,0 +1,469 @@
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+/*
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+ * RapidIO driver services
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+ *
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+ * Copyright 2005 MontaVista Software, Inc.
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+ * Matt Porter <mporter@kernel.crashing.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ */
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+
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+#ifndef LINUX_RIO_DRV_H
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+#define LINUX_RIO_DRV_H
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+
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+#ifdef __KERNEL__
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+
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+#include <linux/types.h>
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+#include <linux/config.h>
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+#include <linux/ioport.h>
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+#include <linux/list.h>
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+#include <linux/errno.h>
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+#include <linux/device.h>
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+#include <linux/rio.h>
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+
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+extern int __rio_local_read_config_32(struct rio_mport *port, u32 offset,
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+ u32 * data);
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+extern int __rio_local_write_config_32(struct rio_mport *port, u32 offset,
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+ u32 data);
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+extern int __rio_local_read_config_16(struct rio_mport *port, u32 offset,
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+ u16 * data);
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+extern int __rio_local_write_config_16(struct rio_mport *port, u32 offset,
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+ u16 data);
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+extern int __rio_local_read_config_8(struct rio_mport *port, u32 offset,
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+ u8 * data);
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+extern int __rio_local_write_config_8(struct rio_mport *port, u32 offset,
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+ u8 data);
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+
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+extern int rio_mport_read_config_32(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u32 * data);
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+extern int rio_mport_write_config_32(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u32 data);
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+extern int rio_mport_read_config_16(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u16 * data);
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+extern int rio_mport_write_config_16(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u16 data);
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+extern int rio_mport_read_config_8(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u8 * data);
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+extern int rio_mport_write_config_8(struct rio_mport *port, u16 destid,
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+ u8 hopcount, u32 offset, u8 data);
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+
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+/**
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+ * rio_local_read_config_32 - Read 32 bits from local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 32 bits of data from the specified offset within the local
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+ * device's configuration space.
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+ */
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+static inline int rio_local_read_config_32(struct rio_mport *port, u32 offset,
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+ u32 * data)
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+{
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+ return __rio_local_read_config_32(port, offset, data);
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+}
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+
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+/**
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+ * rio_local_write_config_32 - Write 32 bits to local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 32 bits of data to the specified offset within the local
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+ * device's configuration space.
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+ */
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+static inline int rio_local_write_config_32(struct rio_mport *port, u32 offset,
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+ u32 data)
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+{
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+ return __rio_local_write_config_32(port, offset, data);
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+}
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+
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+/**
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+ * rio_local_read_config_16 - Read 16 bits from local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 16 bits of data from the specified offset within the local
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+ * device's configuration space.
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+ */
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+static inline int rio_local_read_config_16(struct rio_mport *port, u32 offset,
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+ u16 * data)
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+{
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+ return __rio_local_read_config_16(port, offset, data);
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+}
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+
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+/**
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+ * rio_local_write_config_16 - Write 16 bits to local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 16 bits of data to the specified offset within the local
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+ * device's configuration space.
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+ */
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+
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+static inline int rio_local_write_config_16(struct rio_mport *port, u32 offset,
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+ u16 data)
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+{
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+ return __rio_local_write_config_16(port, offset, data);
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+}
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+
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+/**
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+ * rio_local_read_config_8 - Read 8 bits from local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 8 bits of data from the specified offset within the local
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+ * device's configuration space.
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+ */
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+static inline int rio_local_read_config_8(struct rio_mport *port, u32 offset,
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+ u8 * data)
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+{
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+ return __rio_local_read_config_8(port, offset, data);
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+}
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+
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+/**
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+ * rio_local_write_config_8 - Write 8 bits to local configuration space
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+ * @port: Master port
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+ * @offset: Offset into local configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 8 bits of data to the specified offset within the local
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+ * device's configuration space.
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+ */
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+static inline int rio_local_write_config_8(struct rio_mport *port, u32 offset,
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+ u8 data)
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+{
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+ return __rio_local_write_config_8(port, offset, data);
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+}
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+
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+/**
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+ * rio_read_config_32 - Read 32 bits from configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 32 bits of data from the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_read_config_32(struct rio_dev *rdev, u32 offset,
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+ u32 * data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_read_config_32(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+/**
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+ * rio_write_config_32 - Write 32 bits to configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 32 bits of data to the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_write_config_32(struct rio_dev *rdev, u32 offset,
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+ u32 data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_write_config_32(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+/**
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+ * rio_read_config_16 - Read 16 bits from configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 16 bits of data from the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_read_config_16(struct rio_dev *rdev, u32 offset,
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+ u16 * data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_read_config_16(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+/**
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+ * rio_write_config_16 - Write 16 bits to configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 16 bits of data to the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_write_config_16(struct rio_dev *rdev, u32 offset,
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+ u16 data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_write_config_16(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+/**
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+ * rio_read_config_8 - Read 8 bits from configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Pointer to read data into
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+ *
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+ * Reads 8 bits of data from the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_read_config_8(struct rio_dev *rdev, u32 offset, u8 * data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_read_config_8(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+/**
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+ * rio_write_config_8 - Write 8 bits to configuration space
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+ * @rdev: RIO device
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+ * @offset: Offset into device configuration space
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+ * @data: Data to be written
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+ *
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+ * Writes 8 bits of data to the specified offset within the
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+ * RIO device's configuration space.
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+ */
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+static inline int rio_write_config_8(struct rio_dev *rdev, u32 offset, u8 data)
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+{
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+ u8 hopcount = 0xff;
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+ u16 destid = rdev->destid;
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+
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+ if (rdev->rswitch) {
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+ destid = rdev->rswitch->destid;
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+ hopcount = rdev->rswitch->hopcount;
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+ }
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+
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+ return rio_mport_write_config_8(rdev->net->hport, destid, hopcount,
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+ offset, data);
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+};
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+
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+extern int rio_mport_send_doorbell(struct rio_mport *mport, u16 destid,
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+ u16 data);
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+
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+/**
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+ * rio_send_doorbell - Send a doorbell message to a device
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+ * @rdev: RIO device
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+ * @data: Doorbell message data
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+ *
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+ * Send a doorbell message to a RIO device. The doorbell message
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+ * has a 16-bit info field provided by the @data argument.
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+ */
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+static inline int rio_send_doorbell(struct rio_dev *rdev, u16 data)
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+{
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+ return rio_mport_send_doorbell(rdev->net->hport, rdev->destid, data);
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+};
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+
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+/**
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+ * rio_init_mbox_res - Initialize a RIO mailbox resource
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+ * @res: resource struct
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+ * @start: start of mailbox range
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+ * @end: end of mailbox range
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+ *
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+ * This function is used to initialize the fields of a resource
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+ * for use as a mailbox resource. It initializes a range of
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+ * mailboxes using the start and end arguments.
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+ */
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+static inline void rio_init_mbox_res(struct resource *res, int start, int end)
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+{
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+ memset(res, 0, sizeof(struct resource));
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+ res->start = start;
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+ res->end = end;
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+ res->flags = RIO_RESOURCE_MAILBOX;
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+}
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+
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+/**
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+ * rio_init_dbell_res - Initialize a RIO doorbell resource
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+ * @res: resource struct
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+ * @start: start of doorbell range
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+ * @end: end of doorbell range
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+ *
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+ * This function is used to initialize the fields of a resource
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+ * for use as a doorbell resource. It initializes a range of
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+ * doorbell messages using the start and end arguments.
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+ */
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+static inline void rio_init_dbell_res(struct resource *res, u16 start, u16 end)
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+{
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+ memset(res, 0, sizeof(struct resource));
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+ res->start = start;
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+ res->end = end;
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+ res->flags = RIO_RESOURCE_DOORBELL;
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+}
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+
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+/**
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+ * RIO_DEVICE - macro used to describe a specific RIO device
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+ * @vid: the 16 bit RIO vendor ID
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+ * @did: the 16 bit RIO device ID
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+ *
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+ * This macro is used to create a struct rio_device_id that matches a
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+ * specific device. The assembly vendor and assembly device fields
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+ * will be set to %RIO_ANY_ID.
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+ */
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+#define RIO_DEVICE(dev,ven) \
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+ .did = (dev), .vid = (ven), \
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+ .asm_did = RIO_ANY_ID, .asm_vid = RIO_ANY_ID
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+
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+/* Mailbox management */
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+extern int rio_request_outb_mbox(struct rio_mport *, int, int,
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+ void (*)(struct rio_mport *, int, int));
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+extern int rio_release_outb_mbox(struct rio_mport *, int);
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+
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+/**
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+ * rio_add_outb_message - Add RIO message to an outbound mailbox queue
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+ * @mport: RIO master port containing the outbound queue
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+ * @rdev: RIO device the message is be sent to
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+ * @mbox: The outbound mailbox queue
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+ * @buffer: Pointer to the message buffer
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+ * @len: Length of the message buffer
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+ *
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+ * Adds a RIO message buffer to an outbound mailbox queue for
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+ * transmission. Returns 0 on success.
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+ */
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+static inline int rio_add_outb_message(struct rio_mport *mport,
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+ struct rio_dev *rdev, int mbox,
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+ void *buffer, size_t len)
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+{
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+ return rio_hw_add_outb_message(mport, rdev, mbox, buffer, len);
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+}
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+
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+extern int rio_request_inb_mbox(struct rio_mport *, int, int,
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+ void (*)(struct rio_mport *, int, int));
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+extern int rio_release_inb_mbox(struct rio_mport *, int);
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+
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+/**
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+ * rio_add_inb_buffer - Add buffer to an inbound mailbox queue
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+ * @mport: Master port containing the inbound mailbox
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+ * @mbox: The inbound mailbox number
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+ * @buffer: Pointer to the message buffer
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+ *
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+ * Adds a buffer to an inbound mailbox queue for reception. Returns
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+ * 0 on success.
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+ */
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+static inline int rio_add_inb_buffer(struct rio_mport *mport, int mbox,
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+ void *buffer)
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+{
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+ return rio_hw_add_inb_buffer(mport, mbox, buffer);
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+}
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+
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+/**
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+ * rio_get_inb_message - Get A RIO message from an inbound mailbox queue
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+ * @mport: Master port containing the inbound mailbox
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+ * @mbox: The inbound mailbox number
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+ * @buffer: Pointer to the message buffer
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+ *
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+ * Get a RIO message from an inbound mailbox queue. Returns 0 on success.
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+ */
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+static inline void *rio_get_inb_message(struct rio_mport *mport, int mbox)
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+{
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+ return rio_hw_get_inb_message(mport, mbox);
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+}
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+
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+/* Doorbell management */
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+extern int rio_request_inb_dbell(struct rio_mport *, u16, u16,
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+ void (*)(struct rio_mport *, u16, u16, u16));
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+extern int rio_release_inb_dbell(struct rio_mport *, u16, u16);
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+extern struct resource *rio_request_outb_dbell(struct rio_dev *, u16, u16);
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+extern int rio_release_outb_dbell(struct rio_dev *, struct resource *);
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+
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+/* Memory region management */
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+int rio_claim_resource(struct rio_dev *, int);
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+int rio_request_regions(struct rio_dev *, char *);
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+void rio_release_regions(struct rio_dev *);
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+int rio_request_region(struct rio_dev *, int, char *);
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+void rio_release_region(struct rio_dev *, int);
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+
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+/* LDM support */
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+int rio_register_driver(struct rio_driver *);
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+void rio_unregister_driver(struct rio_driver *);
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+struct rio_dev *rio_dev_get(struct rio_dev *);
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+void rio_dev_put(struct rio_dev *);
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+
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+/**
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+ * rio_name - Get the unique RIO device identifier
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+ * @rdev: RIO device
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+ *
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+ * Get the unique RIO device identifier. Returns the device
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+ * identifier string.
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+ */
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+static inline char *rio_name(struct rio_dev *rdev)
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+{
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+ return rdev->dev.bus_id;
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+}
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+
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+/**
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+ * rio_get_drvdata - Get RIO driver specific data
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+ * @rdev: RIO device
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+ *
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+ * Get RIO driver specific data. Returns a pointer to the
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+ * driver specific data.
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+ */
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+static inline void *rio_get_drvdata(struct rio_dev *rdev)
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+{
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+ return dev_get_drvdata(&rdev->dev);
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|
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+}
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+
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+/**
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+ * rio_set_drvdata - Set RIO driver specific data
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+ * @rdev: RIO device
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+ * @data: Pointer to driver specific data
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+ *
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+ * Set RIO driver specific data. device struct driver data pointer
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+ * is set to the @data argument.
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|
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+ */
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+static inline void rio_set_drvdata(struct rio_dev *rdev, void *data)
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+{
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+ dev_set_drvdata(&rdev->dev, data);
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|
|
+}
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+
|
|
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+/* Misc driver helpers */
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|
|
+extern u16 rio_local_get_device_id(struct rio_mport *port);
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|
|
+extern struct rio_dev *rio_get_device(u16 vid, u16 did, struct rio_dev *from);
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+extern struct rio_dev *rio_get_asm(u16 vid, u16 did, u16 asm_vid, u16 asm_did,
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|
|
+ struct rio_dev *from);
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+
|
|
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+#endif /* __KERNEL__ */
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|
|
+#endif /* LINUX_RIO_DRV_H */
|
Matt Porter