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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* ImgTec IR Decoder found in PowerDown Controller.
*
* Copyright 2010-2014 Imagination Technologies Ltd.
*/
#ifndef _IMG_IR_H_
#define _IMG_IR_H_
#include <linux/io.h>
#include <linux/spinlock.h>
#include "img-ir-raw.h"
#include "img-ir-hw.h"
/* registers */
/* relative to the start of the IR block of registers */
#define IMG_IR_CONTROL 0x00
#define IMG_IR_STATUS 0x04
#define IMG_IR_DATA_LW 0x08
#define IMG_IR_DATA_UP 0x0c
#define IMG_IR_LEAD_SYMB_TIMING 0x10
#define IMG_IR_S00_SYMB_TIMING 0x14
#define IMG_IR_S01_SYMB_TIMING 0x18
#define IMG_IR_S10_SYMB_TIMING 0x1c
#define IMG_IR_S11_SYMB_TIMING 0x20
#define IMG_IR_FREE_SYMB_TIMING 0x24
#define IMG_IR_POW_MOD_PARAMS 0x28
#define IMG_IR_POW_MOD_ENABLE 0x2c
#define IMG_IR_IRQ_MSG_DATA_LW 0x30
#define IMG_IR_IRQ_MSG_DATA_UP 0x34
#define IMG_IR_IRQ_MSG_MASK_LW 0x38
#define IMG_IR_IRQ_MSG_MASK_UP 0x3c
#define IMG_IR_IRQ_ENABLE 0x40
#define IMG_IR_IRQ_STATUS 0x44
#define IMG_IR_IRQ_CLEAR 0x48
#define IMG_IR_IRCORE_ID 0xf0
#define IMG_IR_CORE_REV 0xf4
#define IMG_IR_CORE_DES1 0xf8
#define IMG_IR_CORE_DES2 0xfc
/* field masks */
/* IMG_IR_CONTROL */
#define IMG_IR_DECODEN 0x40000000
#define IMG_IR_CODETYPE 0x30000000
#define IMG_IR_CODETYPE_SHIFT 28
#define IMG_IR_HDRTOG 0x08000000
#define IMG_IR_LDRDEC 0x04000000
#define IMG_IR_DECODINPOL 0x02000000 /* active high */
#define IMG_IR_BITORIEN 0x01000000 /* MSB first */
#define IMG_IR_D1VALIDSEL 0x00008000
#define IMG_IR_BITINV 0x00000040 /* don't invert */
#define IMG_IR_DECODEND2 0x00000010
#define IMG_IR_BITORIEND2 0x00000002 /* MSB first */
#define IMG_IR_BITINVD2 0x00000001 /* don't invert */
/* IMG_IR_STATUS */
#define IMG_IR_RXDVALD2 0x00001000
#define IMG_IR_IRRXD 0x00000400
#define IMG_IR_TOGSTATE 0x00000200
#define IMG_IR_RXDVAL 0x00000040
#define IMG_IR_RXDLEN 0x0000003f
#define IMG_IR_RXDLEN_SHIFT 0
/* IMG_IR_LEAD_SYMB_TIMING, IMG_IR_Sxx_SYMB_TIMING */
#define IMG_IR_PD_MAX 0xff000000
#define IMG_IR_PD_MAX_SHIFT 24
#define IMG_IR_PD_MIN 0x00ff0000
#define IMG_IR_PD_MIN_SHIFT 16
#define IMG_IR_W_MAX 0x0000ff00
#define IMG_IR_W_MAX_SHIFT 8
#define IMG_IR_W_MIN 0x000000ff
#define IMG_IR_W_MIN_SHIFT 0
/* IMG_IR_FREE_SYMB_TIMING */
#define IMG_IR_MAXLEN 0x0007e000
#define IMG_IR_MAXLEN_SHIFT 13
#define IMG_IR_MINLEN 0x00001f00
#define IMG_IR_MINLEN_SHIFT 8
#define IMG_IR_FT_MIN 0x000000ff
#define IMG_IR_FT_MIN_SHIFT 0
/* IMG_IR_POW_MOD_PARAMS */
#define IMG_IR_PERIOD_LEN 0x3f000000
#define IMG_IR_PERIOD_LEN_SHIFT 24
#define IMG_IR_PERIOD_DUTY 0x003f0000
#define IMG_IR_PERIOD_DUTY_SHIFT 16
#define IMG_IR_STABLE_STOP 0x00003f00
#define IMG_IR_STABLE_STOP_SHIFT 8
#define IMG_IR_STABLE_START 0x0000003f
#define IMG_IR_STABLE_START_SHIFT 0
/* IMG_IR_POW_MOD_ENABLE */
#define IMG_IR_POWER_OUT_EN 0x00000002
#define IMG_IR_POWER_MOD_EN 0x00000001
/* IMG_IR_IRQ_ENABLE, IMG_IR_IRQ_STATUS, IMG_IR_IRQ_CLEAR */
#define IMG_IR_IRQ_DEC2_ERR 0x00000080
#define IMG_IR_IRQ_DEC_ERR 0x00000040
#define IMG_IR_IRQ_ACT_LEVEL 0x00000020
#define IMG_IR_IRQ_FALL_EDGE 0x00000010
#define IMG_IR_IRQ_RISE_EDGE 0x00000008
#define IMG_IR_IRQ_DATA_MATCH 0x00000004
#define IMG_IR_IRQ_DATA2_VALID 0x00000002
#define IMG_IR_IRQ_DATA_VALID 0x00000001
#define IMG_IR_IRQ_ALL 0x000000ff
#define IMG_IR_IRQ_EDGE (IMG_IR_IRQ_FALL_EDGE | IMG_IR_IRQ_RISE_EDGE)
/* IMG_IR_CORE_ID */
#define IMG_IR_CORE_ID 0x00ff0000
#define IMG_IR_CORE_ID_SHIFT 16
#define IMG_IR_CORE_CONFIG 0x0000ffff
#define IMG_IR_CORE_CONFIG_SHIFT 0
/* IMG_IR_CORE_REV */
#define IMG_IR_DESIGNER 0xff000000
#define IMG_IR_DESIGNER_SHIFT 24
#define IMG_IR_MAJOR_REV 0x00ff0000
#define IMG_IR_MAJOR_REV_SHIFT 16
#define IMG_IR_MINOR_REV 0x0000ff00
#define IMG_IR_MINOR_REV_SHIFT 8
#define IMG_IR_MAINT_REV 0x000000ff
#define IMG_IR_MAINT_REV_SHIFT 0
struct device;
struct clk;
/**
* struct img_ir_priv - Private driver data.
* @dev: Platform device.
* @irq: IRQ number.
* @clk: Input clock.
* @sys_clk: System clock.
* @reg_base: Iomem base address of IR register block.
* @lock: Protects IR registers and variables in this struct.
* @raw: Driver data for raw decoder.
* @hw: Driver data for hardware decoder.
*/
struct img_ir_priv {
struct device *dev;
int irq;
struct clk *clk;
struct clk *sys_clk;
void __iomem *reg_base;
spinlock_t lock;
struct img_ir_priv_raw raw;
struct img_ir_priv_hw hw;
};
/* Hardware access */
static inline void img_ir_write(struct img_ir_priv *priv,
unsigned int reg_offs, unsigned int data)
{
iowrite32(data, priv->reg_base + reg_offs);
}
static inline unsigned int img_ir_read(struct img_ir_priv *priv,
unsigned int reg_offs)
{
return ioread32(priv->reg_base + reg_offs);
}
#endif /* _IMG_IR_H_ */
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