diff options
Diffstat (limited to 'drivers/media/rc/img-ir/img-ir.h')
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/media/rc/img-ir/img-ir.h b/drivers/media/rc/img-ir/img-ir.h new file mode 100644 index 000000000..a0153c311 --- /dev/null +++ b/drivers/media/rc/img-ir/img-ir.h @@ -0,0 +1,169 @@ +/* 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_ */ |