Initial file dump from open source releaseHEADmaster

1 files changed, 106 insertions, 0 deletions

diff --git a/lib/lzo/lzo1x_hw_decompress.c b/lib/lzo/lzo1x_hw_decompress.c
new file mode 100755
index 00000000..b0060991
--- /dev/null
+++ b/lib/lzo/lzo1x_hw_decompress.c
@@ -0,0 +1,106 @@
+/******************************************************************************
+ ** File Name:                                                                                                                   *
+ ** Author:                                                                                                                        *
+ ** DATE:                                                       										   *
+ ** Copyright:       Spreatrum, Incoporated. All Rights Reserved.                                           *
+ ** Description:                                                                                                                 *
+ ******************************************************************************
+
+ ******************************************************************************
+ **                        Edit History                                                                                           *
+ ** ------------------------------------------------------------------------- -*
+ ** DATE           NAME             DESCRIPTION                                                                      *
+ **                                                                                                                                    *
+ ******************************************************************************/
+
+/**---------------------------------------------------------------------------*
+ **                         Dependencies                                                                                       *
+ **--------------------------------------------------------------------------- */
+
+#ifndef STATIC
+#include <linux/module.h>
+#include <linux/kernel.h>
+#endif
+
+#include <linux/interrupt.h>
+#include <linux/lzo.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <asm/page.h>
+#include <asm/cacheflush.h>
+#include <asm/io.h>
+
+#include "sprd_zipdec_drv.h"
+//#include "lzodefs_hw.h"
+
+//#include <linux/spinlock_types.h>
+#include <linux/sched.h>
+#include <linux/atomic.h>
+//#include <mach/sci.h>
+
+
+u32 lzo1x_virt_to_phys(u32 virt_addr);
+
+
+DEFINE_SPINLOCK(zipdec_lock);
+static int _lzo1x_decompress_single(u32 src_addr , u32 src_num , u32 dst_addr , u32 *dst_len )
+{
+
+	u32 phy_src_addr,phy_dst_addr;
+
+	*dst_len=0;
+
+	phy_src_addr = lzo1x_virt_to_phys(src_addr);
+	phy_dst_addr = lzo1x_virt_to_phys(dst_addr);
+
+	if((phy_src_addr==(-1UL))||(phy_dst_addr==(-1UL))){
+		printk("lzo1x phy addr errors \n");
+		return -1;
+	}
+
+	spin_lock(&zipdec_lock);
+	ZipDec_SetSrcCfg(0 , phy_src_addr, src_num);
+	ZipDec_SetDestCfg(0, phy_dst_addr, ZIP_WORK_LENGTH);
+
+//	dmac_flush_range((void *)(src_addr),(void *)(src_addr+src_num));
+//	dmac_flush_range((void *)dst_addr,(void *)(dst_addr+ZIP_WORK_LENGTH));
+
+	ZipDec_Run();
+	spin_unlock(&zipdec_lock);
+
+	if(Zip_Dec_Wait_Pool(ZIPDEC_DONE_INT))
+	{
+		return -1;
+	}
+
+	*dst_len=ZIP_WORK_LENGTH;
+	return 0;
+}
+
+
+
+int lzo1x_decompress_safe_hw(const unsigned char *src , size_t src_len , unsigned char *dst , size_t *dst_len)
+{
+	u32 dec_len;
+
+	//uint32_t src_addr =(uint32_t)src;
+	//uint32_t dst_addr =(uint32_t)dst;
+
+	if (!dst || !dst_len || !src  || !src_len ||(src_len > PAGE_SIZE))  return LZO_HW_IN_PARA_ERROR;
+	//printk("lzo hw decompress\r\n");
+
+	//if(_lzo1x_decompress_single((u32)src_addr ,src_len , dst_addr ,&dec_len))
+	if(_lzo1x_decompress_single((u32)src ,(u32)src_len ,(u32)dst ,&dec_len))
+	{
+		*dst_len = dec_len;
+		ZipDec_Restart();
+		return LZO_HW_ERROR;
+	}
+	*dst_len = ZIP_WORK_LENGTH;
+	return LZO_HW_OK;
+}
+
+
+EXPORT_SYMBOL_GPL(lzo1x_decompress_safe_hw);
+