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/*
 * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
 * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
 *
 * 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.
 */
#ifndef __IPU_PRV_H__
#define __IPU_PRV_H__

struct ipu_soc;

#include <linux/types.h>
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/platform_device.h>

#include <video/imx-ipu-v3.h>

#define IPUV3_CHANNEL_CSI0			 0
#define IPUV3_CHANNEL_CSI1			 1
#define IPUV3_CHANNEL_CSI2			 2
#define IPUV3_CHANNEL_CSI3			 3
#define IPUV3_CHANNEL_VDI_MEM_IC_VF              5
#define IPUV3_CHANNEL_MEM_IC_PP                 11
#define IPUV3_CHANNEL_MEM_IC_PRP_VF             12
#define IPUV3_CHANNEL_G_MEM_IC_PRP_VF           14
#define IPUV3_CHANNEL_G_MEM_IC_PP               15
#define IPUV3_CHANNEL_IC_PRP_ENC_MEM            20
#define IPUV3_CHANNEL_IC_PRP_VF_MEM             21
#define IPUV3_CHANNEL_IC_PP_MEM                 22
#define IPUV3_CHANNEL_MEM_BG_SYNC		23
#define IPUV3_CHANNEL_MEM_FG_SYNC		27
#define IPUV3_CHANNEL_MEM_DC_SYNC		28
#define IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA		31
#define IPUV3_CHANNEL_MEM_DC_ASYNC		41
#define IPUV3_CHANNEL_MEM_ROT_ENC		45
#define IPUV3_CHANNEL_MEM_ROT_VF		46
#define IPUV3_CHANNEL_MEM_ROT_PP		47
#define IPUV3_CHANNEL_ROT_ENC_MEM		48
#define IPUV3_CHANNEL_ROT_VF_MEM		49
#define IPUV3_CHANNEL_ROT_PP_MEM		50
#define IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA		51

#define IPU_MCU_T_DEFAULT	8
#define IPU_CM_IDMAC_REG_OFS	0x00008000
#define IPU_CM_IC_REG_OFS	0x00020000
#define IPU_CM_IRT_REG_OFS	0x00028000
#define IPU_CM_CSI0_REG_OFS	0x00030000
#define IPU_CM_CSI1_REG_OFS	0x00038000
#define IPU_CM_SMFC_REG_OFS	0x00050000
#define IPU_CM_DC_REG_OFS	0x00058000
#define IPU_CM_DMFC_REG_OFS	0x00060000

/* Register addresses */
/* IPU Common registers */
#define IPU_CM_REG(offset)	(offset)

#define IPU_CONF			IPU_CM_REG(0)

#define IPU_SRM_PRI1			IPU_CM_REG(0x00a0)
#define IPU_SRM_PRI2			IPU_CM_REG(0x00a4)
#define IPU_FS_PROC_FLOW1		IPU_CM_REG(0x00a8)
#define IPU_FS_PROC_FLOW2		IPU_CM_REG(0x00ac)
#define IPU_FS_PROC_FLOW3		IPU_CM_REG(0x00b0)
#define IPU_FS_DISP_FLOW1		IPU_CM_REG(0x00b4)
#define IPU_FS_DISP_FLOW2		IPU_CM_REG(0x00b8)
#define IPU_SKIP			IPU_CM_REG(0x00bc)
#define IPU_DISP_ALT_CONF		IPU_CM_REG(0x00c0)
#define IPU_DISP_GEN			IPU_CM_REG(0x00c4)
#define IPU_DISP_ALT1			IPU_CM_REG(0x00c8)
#define IPU_DISP_ALT2			IPU_CM_REG(0x00cc)
#define IPU_DISP_ALT3			IPU_CM_REG(0x00d0)
#define IPU_DISP_ALT4			IPU_CM_REG(0x00d4)
#define IPU_SNOOP			IPU_CM_REG(0x00d8)
#define IPU_MEM_RST			IPU_CM_REG(0x00dc)
#define IPU_PM				IPU_CM_REG(0x00e0)
#define IPU_GPR				IPU_CM_REG(0x00e4)
#define IPU_CHA_DB_MODE_SEL(ch)		IPU_CM_REG(0x0150 + 4 * ((ch) / 32))
#define IPU_ALT_CHA_DB_MODE_SEL(ch)	IPU_CM_REG(0x0168 + 4 * ((ch) / 32))
#define IPU_CHA_CUR_BUF(ch)		IPU_CM_REG(0x023C + 4 * ((ch) / 32))
#define IPU_ALT_CUR_BUF0		IPU_CM_REG(0x0244)
#define IPU_ALT_CUR_BUF1		IPU_CM_REG(0x0248)
#define IPU_SRM_STAT			IPU_CM_REG(0x024C)
#define IPU_PROC_TASK_STAT		IPU_CM_REG(0x0250)
#define IPU_DISP_TASK_STAT		IPU_CM_REG(0x0254)
#define IPU_CHA_BUF0_RDY(ch)		IPU_CM_REG(0x0268 + 4 * ((ch) / 32))
#define IPU_CHA_BUF1_RDY(ch)		IPU_CM_REG(0x0270 + 4 * ((ch) / 32))
#define IPU_ALT_CHA_BUF0_RDY(ch)	IPU_CM_REG(0x0278 + 4 * ((ch) / 32))
#define IPU_ALT_CHA_BUF1_RDY(ch)	IPU_CM_REG(0x0280 + 4 * ((ch) / 32))

#define IPU_INT_CTRL(n)		IPU_CM_REG(0x003C + 4 * (n))
#define IPU_INT_STAT(n)		IPU_CM_REG(0x0200 + 4 * (n))

#define IPU_DI0_COUNTER_RELEASE			(1 << 24)
#define IPU_DI1_COUNTER_RELEASE			(1 << 25)

#define IPU_IDMAC_REG(offset)	(offset)

#define IDMAC_CONF			IPU_IDMAC_REG(0x0000)
#define IDMAC_CHA_EN(ch)		IPU_IDMAC_REG(0x0004 + 4 * ((ch) / 32))
#define IDMAC_SEP_ALPHA			IPU_IDMAC_REG(0x000c)
#define IDMAC_ALT_SEP_ALPHA		IPU_IDMAC_REG(0x0010)
#define IDMAC_CHA_PRI(ch)		IPU_IDMAC_REG(0x0014 + 4 * ((ch) / 32))
#define IDMAC_WM_EN(ch)			IPU_IDMAC_REG(0x001c + 4 * ((ch) / 32))
#define IDMAC_CH_LOCK_EN_1		IPU_IDMAC_REG(0x0024)
#define IDMAC_CH_LOCK_EN_2		IPU_IDMAC_REG(0x0028)
#define IDMAC_SUB_ADDR_0		IPU_IDMAC_REG(0x002c)
#define IDMAC_SUB_ADDR_1		IPU_IDMAC_REG(0x0030)
#define IDMAC_SUB_ADDR_2		IPU_IDMAC_REG(0x0034)
#define IDMAC_BAND_EN(ch)		IPU_IDMAC_REG(0x0040 + 4 * ((ch) / 32))
#define IDMAC_CHA_BUSY(ch)		IPU_IDMAC_REG(0x0100 + 4 * ((ch) / 32))

#define IPU_NUM_IRQS	(32 * 15)

enum ipu_modules {
	IPU_CONF_CSI0_EN		= (1 << 0),
	IPU_CONF_CSI1_EN		= (1 << 1),
	IPU_CONF_IC_EN			= (1 << 2),
	IPU_CONF_ROT_EN			= (1 << 3),
	IPU_CONF_ISP_EN			= (1 << 4),
	IPU_CONF_DP_EN			= (1 << 5),
	IPU_CONF_DI0_EN			= (1 << 6),
	IPU_CONF_DI1_EN			= (1 << 7),
	IPU_CONF_SMFC_EN		= (1 << 8),
	IPU_CONF_DC_EN			= (1 << 9),
	IPU_CONF_DMFC_EN		= (1 << 10),

	IPU_CONF_VDI_EN			= (1 << 12),

	IPU_CONF_IDMAC_DIS		= (1 << 22),

	IPU_CONF_IC_DMFC_SEL		= (1 << 25),
	IPU_CONF_IC_DMFC_SYNC		= (1 << 26),
	IPU_CONF_VDI_DMFC_SYNC		= (1 << 27),

	IPU_CONF_CSI0_DATA_SOURCE	= (1 << 28),
	IPU_CONF_CSI1_DATA_SOURCE	= (1 << 29),
	IPU_CONF_IC_INPUT		= (1 << 30),
	IPU_CONF_CSI_SEL		= (1 << 31),
};

struct ipuv3_channel {
	unsigned int num;

	bool enabled;
	bool busy;

	struct ipu_soc *ipu;
};

struct ipu_cpmem;
struct ipu_csi;
struct ipu_dc_priv;
struct ipu_dmfc_priv;
struct ipu_di;
struct ipu_ic_priv;
struct ipu_smfc_priv;

struct ipu_devtype;

struct ipu_soc {
	struct device		*dev;
	const struct ipu_devtype	*devtype;
	enum ipuv3_type		ipu_type;
	spinlock_t		lock;
	struct mutex		channel_lock;

	void __iomem		*cm_reg;
	void __iomem		*idmac_reg;

	int			usecount;

	struct clk		*clk;

	struct ipuv3_channel	channel[64];

	int			irq_sync;
	int			irq_err;
	struct irq_domain	*domain;

	struct ipu_cpmem	*cpmem_priv;
	struct ipu_dc_priv	*dc_priv;
	struct ipu_dp_priv	*dp_priv;
	struct ipu_dmfc_priv	*dmfc_priv;
	struct ipu_di		*di_priv[2];
	struct ipu_csi		*csi_priv[2];
	struct ipu_ic_priv	*ic_priv;
	struct ipu_smfc_priv	*smfc_priv;
};

static inline u32 ipu_idmac_read(struct ipu_soc *ipu, unsigned offset)
{
	return readl(ipu->idmac_reg + offset);
}

static inline void ipu_idmac_write(struct ipu_soc *ipu, u32 value,
				   unsigned offset)
{
	writel(value, ipu->idmac_reg + offset);
}

void ipu_srm_dp_sync_update(struct ipu_soc *ipu);

int ipu_module_enable(struct ipu_soc *ipu, u32 mask);
int ipu_module_disable(struct ipu_soc *ipu, u32 mask);

bool ipu_idmac_channel_busy(struct ipu_soc *ipu, unsigned int chno);
int ipu_wait_interrupt(struct ipu_soc *ipu, int irq, int ms);

int ipu_csi_init(struct ipu_soc *ipu, struct device *dev, int id,
		 unsigned long base, u32 module, struct clk *clk_ipu);
void ipu_csi_exit(struct ipu_soc *ipu, int id);

int ipu_ic_init(struct ipu_soc *ipu, struct device *dev,
		unsigned long base, unsigned long tpmem_base);
void ipu_ic_exit(struct ipu_soc *ipu);

int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
		unsigned long base, u32 module, struct clk *ipu_clk);
void ipu_di_exit(struct ipu_soc *ipu, int id);

int ipu_dmfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
		struct clk *ipu_clk);
void ipu_dmfc_exit(struct ipu_soc *ipu);

int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
void ipu_dp_exit(struct ipu_soc *ipu);

int ipu_dc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
		unsigned long template_base);
void ipu_dc_exit(struct ipu_soc *ipu);

int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
void ipu_cpmem_exit(struct ipu_soc *ipu);

int ipu_smfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
void ipu_smfc_exit(struct ipu_soc *ipu);

#endif				/* __IPU_PRV_H__ */

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