1 files changed, 82 insertions, 0 deletions
diff --git a/include/linux/pxp_dma.h b/include/linux/pxp_dma.h
new file mode 100644
index 000000000000..a48871caebfc
--- /dev/null
+++ b/include/linux/pxp_dma.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010-2015 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+#ifndef _PXP_DMA
+#define _PXP_DMA
+
+#include <uapi/linux/pxp_dma.h>
+
+struct pxp_tx_desc {
+	struct dma_async_tx_descriptor txd;
+	struct list_head tx_list;
+	struct list_head list;
+	int len;
+	union {
+		struct pxp_layer_param s0_param;
+		struct pxp_layer_param out_param;
+		struct pxp_layer_param ol_param;
+		struct pxp_layer_param processing_param;
+	} layer_param;
+	struct pxp_proc_data proc_data;
+
+	u32 hist_status;	/* Histogram output status */
+
+	struct pxp_tx_desc *next;
+};
+
+struct pxp_channel {
+	struct dma_chan dma_chan;
+	dma_cookie_t completed;	/* last completed cookie */
+	enum pxp_channel_status status;
+	void *client;		/* Only one client per channel */
+	unsigned int n_tx_desc;
+	struct pxp_tx_desc *desc;	/* allocated tx-descriptors */
+	struct list_head active_list;	/* active tx-descriptors */
+	struct list_head free_list;	/* free tx-descriptors */
+	struct list_head queue;	/* queued tx-descriptors */
+	struct list_head list;	/* track queued channel number */
+	spinlock_t lock;	/* protects sg[0,1], queue */
+	struct mutex chan_mutex;	/* protects status, cookie, free_list */
+	int active_buffer;
+	unsigned int eof_irq;
+	char eof_name[16];	/* EOF IRQ name for request_irq()  */
+};
+
+#define to_tx_desc(tx) container_of(tx, struct pxp_tx_desc, txd)
+#define to_pxp_channel(d) container_of(d, struct pxp_channel, dma_chan)
+
+void pxp_txd_ack(struct dma_async_tx_descriptor *txd,
+		 struct pxp_channel *pxp_chan);
+
+#ifdef CONFIG_MXC_PXP_CLIENT_DEVICE
+int register_pxp_device(void);
+void unregister_pxp_device(void);
+#else
+static int register_pxp_device(void) { return 0; }
+static void unregister_pxp_device(void) {}
+#endif
+void pxp_fill(
+        u32 bpp,
+        u32 value,
+        u32 width,
+        u32 height,
+        u32 output_buffer,
+        u32 output_pitch);
+
+void m4_process(void);
+#endif