1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/io.h b/drivers/staging/tidspbridge/include/dspbridge/io.h
new file mode 100644
index 00000000..75057185
--- /dev/null
+++ b/drivers/staging/tidspbridge/include/dspbridge/io.h
@@ -0,0 +1,80 @@
+/*
+ * io.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * The io module manages IO between CHNL and msg_ctrl.
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef IO_
+#define IO_
+
+#include <dspbridge/cfgdefs.h>
+#include <dspbridge/devdefs.h>
+
+/* IO Objects: */
+struct io_mgr;
+
+/* IO manager attributes: */
+struct io_attrs {
+	u8 birq;		/* Channel's I/O IRQ number. */
+	bool irq_shared;	/* TRUE if the IRQ is shareable. */
+	u32 word_size;		/* DSP Word size. */
+	u32 shm_base;		/* Physical base address of shared memory. */
+	u32 sm_length;		/* Size (in bytes) of shared memory. */
+};
+
+
+/*
+ *  ======== io_create ========
+ *  Purpose:
+ *      Create an IO manager object, responsible for managing IO between
+ *      CHNL and msg_ctrl.
+ *  Parameters:
+ *      channel_mgr:            Location to store a channel manager object on
+ *                              output.
+ *      hdev_obj:             Handle to a device object.
+ *      mgr_attrts:              IO manager attributes.
+ *      mgr_attrts->birq:        I/O IRQ number.
+ *      mgr_attrts->irq_shared:     TRUE if the IRQ is shareable.
+ *      mgr_attrts->word_size:   DSP Word size in equivalent PC bytes..
+ *  Returns:
+ *      0:                Success;
+ *      -ENOMEM:            Insufficient memory for requested resources.
+ *      -EIO:             Unable to plug channel ISR for configured IRQ.
+ *      -EINVAL: Invalid DSP word size (must be > 0).
+ *               Invalid base address for DSP communications.
+ *  Requires:
+ *      io_man != NULL.
+ *      mgr_attrts != NULL.
+ *  Ensures:
+ */
+extern int io_create(struct io_mgr **io_man,
+			    struct dev_object *hdev_obj,
+			    const struct io_attrs *mgr_attrts);
+
+/*
+ *  ======== io_destroy ========
+ *  Purpose:
+ *      Destroy the IO manager.
+ *  Parameters:
+ *      hio_mgr:         IOmanager object.
+ *  Returns:
+ *      0:        Success.
+ *      -EFAULT:    hio_mgr was invalid.
+ *  Requires:
+ *  Ensures:
+ */
+extern int io_destroy(struct io_mgr *hio_mgr);
+
+#endif /* CHNL_ */