ENGR00293211 PXP: bind allocated DMA channels to opened device file descriptor

[karo-tx-linux.git] / include / linux / pxp_device.h

diff --git a/include/linux/pxp_device.h b/include/linux/pxp_device.h
index b3eb1c60ab97639774e6f689f28730ec86151248..5881deb0e03071c8668c21c5870f858a0df36e12 100644 (file)
--- a/include/linux/pxp_device.h
+++ b/include/linux/pxp_device.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2013-2014 Freescale Semiconductor, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -48,6 +48,11 @@ struct pxp_buf_obj {
        struct hlist_node item;
 };
 
+struct pxp_chan_obj {
+       uint32_t handle;
+       struct dma_chan *chan;
+};
+
 /* File private data */
 struct pxp_file {
        struct file *filp;
@@ -55,6 +60,10 @@ struct pxp_file {
        /* record allocated dma buffer */
        struct idr buffer_idr;
        spinlock_t buffer_lock;
+
+       /* record allocated dma channel */
+       struct idr channel_idr;
+       spinlock_t channel_lock;
 };
 
 #endif