1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/sdma/iapi/src/iapiLowDsp.c b/arch/arm/plat-mxc/sdma/iapi/src/iapiLowDsp.c
new file mode 100644
index 000000000000..df7d44a9bd46
--- /dev/null
+++ b/arch/arm/plat-mxc/sdma/iapi/src/iapiLowDsp.c
@@ -0,0 +1,79 @@
+/******************************************************************************
+ *
+ * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ ******************************************************************************
+ *
+ * File: iapiLowDsp.c
+ *
+ * $Id iapiLowDsp.c $
+ *
+ * Description:
+ *  This library is written in C to guarantee functionality and integrity in
+ * the usage of SDMA virtual DMA channels. This API (Application Programming
+ * Interface)  allow SDMA channels' access in an OPEN, READ, WRITE, CLOSE
+ * fashion.
+ *  These are the LOW level functions of the I.API specific to MCU.
+ *
+ *
+ *
+ *
+ * $Log iapiLowDsp.c $
+ *
+ *****************************************************************************/
+
+/* ****************************************************************************
+ * Include File Section
+ *****************************************************************************/
+#include "epm.h"
+#include "iapiLow.h"
+
+/* ****************************************************************************
+ * Function Section
+ *****************************************************************************/
+#ifdef DSP
+
+/* ***************************************************************************/
+/**Starts the channel (core specific register)
+ *
+ * <b>Algorithm:</b>\n
+ *   - Bit numbered "channel" of DspEnStartReg register is set
+ *
+ * @param channel channel to start
+ *
+ * @return none
+ */
+void
+iapi_lowStartChannel (unsigned char channel)
+{
+  SDMA_D_START |= (1 << channel);
+}
+
+/* ***************************************************************************/
+/**Stops the channel (core specific register)
+ *
+ * <b>Algorithm:</b>
+ *   - Bit numbered "channel" of DspEnStopReg register is cleared
+ *
+ * <b>Notes:</b>\n
+ *   - This is a write one to clear register
+ *
+ * @param channel channel to stop
+ *
+ * @return none
+ */
+void
+iapi_lowStopChannel (unsigned char channel)
+{
+  SDMA_D_STATSTOP &= (1 << channel);
+}
+
+#endif /* DSP */