From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 lib/lzo/sprd_zipdec_drv.c | 238 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 238 insertions(+)
 create mode 100755 lib/lzo/sprd_zipdec_drv.c

(limited to 'lib/lzo/sprd_zipdec_drv.c')

diff --git a/lib/lzo/sprd_zipdec_drv.c b/lib/lzo/sprd_zipdec_drv.c
new file mode 100755
index 00000000..73768610
--- /dev/null
+++ b/lib/lzo/sprd_zipdec_drv.c
@@ -0,0 +1,238 @@
+/******************************************************************************
+ **  File Name:    xxx_test.c
+ **  Author:        xxx
+ **  Date:	     22/08/2001
+ **  Copyright:	2001 Spreadtrum, Incorporated. All Rights Reserved.
+ **  Description:   Module test entry template file.
+ **
+ **
+ *****************************************************************************
+ *****************************************************************************
+ **  Edit History
+ **--------------------------------------------------------------------------*
+ **  DATE			NAME			DESCRIPTION
+ **  22/08/2001		xxx				Create.
+ *****************************************************************************/
+
+
+/**---------------------------------------------------------------------------*
+ **                         Dependencies                                      *
+ **---------------------------------------------------------------------------*/
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/types.h>
+#include <linux/io.h>
+#include <linux/lzo.h>
+
+#include <soc/sprd/sci_glb_regs.h>
+#include <soc/sprd/sci.h>
+#include "sprd_zipdec_drv.h"
+
+unsigned long REGS_ZIPDEC_BASE = 0;
+
+void sprd_zipmatrix_reset(void)
+{
+	u32 i;
+	sci_glb_set(REG_GLB_SET(REG_AP_AHB_AHB_RST),BIT_ZIP_MTX_SOFT_RST|BIT_ZIPDEC_SOFT_RST);
+	for(i=0;i<0x200;i++);
+	sci_glb_set(REG_GLB_CLR(REG_AP_AHB_AHB_RST),BIT_ZIP_MTX_SOFT_RST|BIT_ZIPDEC_SOFT_RST);
+}
+
+void sprd_zipdec_reset(void)
+{
+	u32 i;
+        sci_glb_set(REG_GLB_SET(REG_AP_AHB_AHB_RST),BIT_ZIPDEC_SOFT_RST);
+        for(i=0;i<0x200;i++);
+        sci_glb_set(REG_GLB_CLR(REG_AP_AHB_AHB_RST),BIT_ZIPDEC_SOFT_RST);
+}
+
+void sprd_zipdec_enable(u32 enable)
+{
+	if(enable)
+	{
+		sci_glb_set(REG_GLB_SET(REG_AP_AHB_AHB_EB),BIT_ZIPDEC_EB);
+		sci_glb_set(REG_GLB_SET(REG_AON_APB_APB_EB1),BIT_ZIP_EMC_EB);
+	}
+	else
+	{
+		sci_glb_set(REG_GLB_CLR(REG_AP_AHB_AHB_EB),BIT_ZIPDEC_EB);
+		//sci_glb_set(REG_GLB_CLR(REG_AON_APB_APB_EB1),BIT_ZIP_EMC_EB);
+	}
+}
+
+void ZipDec_Run(void)
+{
+	u32 reg_val;
+	reg_val = __raw_readl((void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+	reg_val |= ZIPDEC_RUN;
+	__raw_writel(reg_val,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+}
+
+void ZipDec_In_Out_SwtMode(u32 Inmode,u32 Outmode)
+{
+	u32 reg_val;
+	reg_val = __raw_readl((void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+	reg_val &= ~(ZIPDEC_IN_SWT_MASK|ZIPDEC_OUT_SWT_MASK);
+	reg_val |= (Inmode<<ZIPDEC_IN_SWT_SHIFT | Outmode<<ZIPDEC_OUT_SWT_SHIFT);
+	__raw_writel(reg_val,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+}
+
+void ZipDec_QueueEnable(u32 enable)
+{
+	u32 reg_val;
+	reg_val = __raw_readl((void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+	reg_val = enable ? (reg_val|ZIPDEC_QUEUE_EN): (reg_val&~ZIPDEC_QUEUE_EN);
+	__raw_writel(reg_val,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+}
+
+void ZipDec_QueueLength(u32 length)
+{
+	u32 reg_val;
+	reg_val = __raw_readl((void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+	reg_val &= ~ZIPDEC_QUEUE_LEN_MASK;
+	reg_val |= length <<ZIPDEC_QUEUE_LEN_SHIFT;
+	 __raw_writel(reg_val,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+}
+
+void ZipDec_Set_Timeout(u32 timeout)
+{
+	__raw_writel(timeout,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_TIME_OUT));
+}
+
+void ZipDec_SetSrcCfg(u32 num,unsigned long src_start_addr, u32 src_len)
+{
+	__raw_writel(src_start_addr,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_IN_ADDR+4*num));
+	__raw_writel(src_len,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_IN_LEN+4*num));
+}
+
+void ZipDec_SetDestCfg(u32 num,unsigned long dest_start_addr,u32 dst_len)
+{
+	__raw_writel(dest_start_addr,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_OUT_ADDR+4*num));
+	__raw_writel(dst_len,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_OUT_LEN+4*num));
+}
+
+void ZipDec_Restart(void)
+{
+        sprd_zipdec_enable(0);
+        udelay(100);
+        sprd_zipdec_enable(1);
+	sprd_zipdec_reset();
+	__raw_writel(ZIPDEC_EN,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+}
+
+int Zip_Dec_Wait_Pool(ZIPDEC_INT_TYPE num)
+{
+
+        u32 int_sts;
+        while (1)
+        {
+                int_sts =  __raw_readl((void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_INT_RAW));
+
+                if(int_sts&(0x1<<ZIPDEC_TIMEOUT_INT))
+                {
+                        __raw_writel(0xFF,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_INT_CLR));
+                        //printk("zip dec timeout: 0x%x \n", int_sts);
+                        //printk("ZIPDEC_STS0:0x%x\n",CHIP_REG_GET(ZIPDEC_STS0));
+                        //printk("ZIPDEC_STS1:0x%x\n",CHIP_REG_GET(ZIPDEC_STS1));
+                        //printk("ZIPDEC_STS2:0x%x\n",CHIP_REG_GET(ZIPDEC_STS2));
+                        //printk("ZIPDEC_STS3:0x%x\n",CHIP_REG_GET(ZIPDEC_STS3));
+                        //printk("ZIPDEC_STS4:0x%x\n",CHIP_REG_GET(ZIPDEC_STS4));
+                        return -1;
+                }
+                if(int_sts&0x1e)
+                {
+                        __raw_writel(0xFF,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_INT_CLR));
+                        //printk("zip dec err: 0x%x \n", int_sts);
+                        //printk("ZIPDEC_STS0:0x%x\n",CHIP_REG_GET(ZIPDEC_STS0));
+                        //printk("ZIPDEC_STS1:0x%x\n",CHIP_REG_GET(ZIPDEC_STS1));
+                        //printk("ZIPDEC_STS2:0x%x\n",CHIP_REG_GET(ZIPDEC_STS2));
+                        //printk("ZIPDEC_STS3:0x%x\n",CHIP_REG_GET(ZIPDEC_STS3));
+                        //printk("ZIPDEC_STS4:0x%x\n",CHIP_REG_GET(ZIPDEC_STS4));
+                        return -1;
+                }
+                if(int_sts&(0x1<<num))
+                {
+			__raw_writel(0xFF,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_INT_CLR));
+                        break;
+                }
+        }
+        return 0;
+}
+
+static int __init sprd_zipdec_probe(struct platform_device *pdev)
+{
+        struct resource *regs;
+
+        regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!regs) {
+                dev_err(&pdev->dev, "zipdec get io resource failed!\n");
+                return -ENODEV;
+        }
+
+        REGS_ZIPDEC_BASE = (unsigned long)ioremap_nocache(regs->start,resource_size(regs));
+        if (!REGS_ZIPDEC_BASE){
+		dev_err(&pdev->dev, "zipdec get base address failed!\n");
+                return -ENODEV;
+        }
+
+        //dev_info(&pdev->dev, "probe zipdec get regbase 0x%lx\n",REGS_ZIPDEC_BASE);
+#if 0
+        irq_num = platform_get_irq(pdev, 0);
+        if (irq_num < 0) {
+                dev_err(&pdev->dev, "zipdec get irq resource failed!\n");
+                return irq_num;
+        }
+        dev_info(&pdev->dev, "probe zipdec get irq num %d\n",irq_num);
+#endif	
+	sprd_zipdec_enable(1);       // global enable dec
+	
+	sprd_zipdec_reset();		
+
+	__raw_writel(ZIPDEC_EN,(void __iomem*)(REGS_ZIPDEC_BASE+ZIPDEC_CTRL));
+
+	return 0;
+}
+
+static void sprd_zipdec_remove(void)
+{
+        sprd_zipdec_enable(0);
+}
+
+static const struct of_device_id sprd_zipdec_of_match[] = {
+        { .compatible = "sprd,sprd-zipdec", },
+        { /* sentinel */ }
+};
+
+static struct platform_driver sprd_zipdec_driver = {
+        .driver = {
+                .name = "sprd zipdec",
+                .owner = THIS_MODULE,
+                .of_match_table = of_match_ptr(sprd_zipdec_of_match),
+        },
+        .probe = sprd_zipdec_probe,
+        .remove  = __exit_p(sprd_zipdec_remove),
+};
+
+static int __init sprd_zipdec_init(void)
+{
+        return platform_driver_register(&sprd_zipdec_driver);
+}
+subsys_initcall(sprd_zipdec_init);
+
+static void __exit sprd_zipdec_exit(void)
+{
+        platform_driver_unregister(&sprd_zipdec_driver);
+}
+module_exit(sprd_zipdec_exit);
+
+MODULE_DESCRIPTION("SpreadTrum ZIPDEC Controller driver");
+MODULE_AUTHOR("SPRD");
+MODULE_LICENSE("GPL");
-- 
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