staging: ti dspbridge: add platform manager code

Add TI's DSP Bridge platform manager driver sources

Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Kanigeri, Hari <h-kanigeri2@ti.com>
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Signed-off-by: Guzman Lugo, Fernando <fernando.lugo@ti.com>
Signed-off-by: Hebbar, Shivananda <x0hebbar@ti.com>
Signed-off-by: Ramos Falcon, Ernesto <ernesto@ti.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Anna, Suman <s-anna@ti.com>
Signed-off-by: Gupta, Ramesh <grgupta@ti.com>
Signed-off-by: Gomez Castellanos, Ivan <ivan.gomez@ti.com>
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Armando Uribe De Leon <x0095078@ti.com>
Signed-off-by: Deepak Chitriki <deepak.chitriki@ti.com>
Signed-off-by: Menon, Nishanth <nm@ti.com>
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/staging/tidspbridge/pmgr/msg.c b/drivers/staging/tidspbridge/pmgr/msg.c
new file mode 100644
index 000000000000..64f1cb4bf5ac
--- /dev/null
+++ b/drivers/staging/tidspbridge/pmgr/msg.c
@@ -0,0 +1,129 @@
+/*
+ * msg.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * DSP/BIOS Bridge msg_ctrl Module.
+ *
+ * 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.
+ */
+
+/*  ----------------------------------- Host OS */
+#include <dspbridge/host_os.h>
+
+/*  ----------------------------------- DSP/BIOS Bridge */
+#include <dspbridge/std.h>
+#include <dspbridge/dbdefs.h>
+
+/*  ----------------------------------- Trace & Debug */
+#include <dspbridge/dbc.h>
+
+/*  ----------------------------------- Bridge Driver */
+#include <dspbridge/dspdefs.h>
+
+/*  ----------------------------------- Platform Manager */
+#include <dspbridge/dev.h>
+
+/*  ----------------------------------- This */
+#include <msgobj.h>
+#include <dspbridge/msg.h>
+
+/*  ----------------------------------- Globals */
+static u32 refs;		/* module reference count */
+
+/*
+ *  ======== msg_create ========
+ *  Purpose:
+ *      Create an object to manage message queues. Only one of these objects
+ *      can exist per device object.
+ */
+int msg_create(OUT struct msg_mgr **phMsgMgr,
+		      struct dev_object *hdev_obj, msg_onexit msgCallback)
+{
+	struct bridge_drv_interface *intf_fxns;
+	struct msg_mgr_ *msg_mgr_obj;
+	struct msg_mgr *hmsg_mgr;
+	int status = 0;
+
+	DBC_REQUIRE(refs > 0);
+	DBC_REQUIRE(phMsgMgr != NULL);
+	DBC_REQUIRE(msgCallback != NULL);
+	DBC_REQUIRE(hdev_obj != NULL);
+
+	*phMsgMgr = NULL;
+
+	dev_get_intf_fxns(hdev_obj, &intf_fxns);
+
+	/* Let Bridge message module finish the create: */
+	status =
+	    (*intf_fxns->pfn_msg_create) (&hmsg_mgr, hdev_obj, msgCallback);
+
+	if (DSP_SUCCEEDED(status)) {
+		/* Fill in DSP API message module's fields of the msg_mgr
+		 * structure */
+		msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr;
+		msg_mgr_obj->intf_fxns = intf_fxns;
+
+		/* Finally, return the new message manager handle: */
+		*phMsgMgr = hmsg_mgr;
+	} else {
+		status = -EPERM;
+	}
+	return status;
+}
+
+/*
+ *  ======== msg_delete ========
+ *  Purpose:
+ *      Delete a msg_ctrl manager allocated in msg_create().
+ */
+void msg_delete(struct msg_mgr *hmsg_mgr)
+{
+	struct msg_mgr_ *msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr;
+	struct bridge_drv_interface *intf_fxns;
+
+	DBC_REQUIRE(refs > 0);
+
+	if (msg_mgr_obj) {
+		intf_fxns = msg_mgr_obj->intf_fxns;
+
+		/* Let Bridge message module destroy the msg_mgr: */
+		(*intf_fxns->pfn_msg_delete) (hmsg_mgr);
+	} else {
+		dev_dbg(bridge, "%s: Error hmsg_mgr handle: %p\n",
+			__func__, hmsg_mgr);
+	}
+}
+
+/*
+ *  ======== msg_exit ========
+ */
+void msg_exit(void)
+{
+	DBC_REQUIRE(refs > 0);
+	refs--;
+
+	DBC_ENSURE(refs >= 0);
+}
+
+/*
+ *  ======== msg_mod_init ========
+ */
+bool msg_mod_init(void)
+{
+	DBC_REQUIRE(refs >= 0);
+
+	refs++;
+
+	DBC_ENSURE(refs >= 0);
+
+	return true;
+}