kernel / include / linux / soundwire / sdw_registers.h

/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
/* Copyright(c) 2015-17 Intel Corporation. */

#ifndef __SDW_REGISTERS_H
#define __SDW_REGISTERS_H

#include <linux/bitfield.h>
#include <linux/bits.h>

/*
 * SDW registers as defined by MIPI 1.2 Spec
 */
#define SDW_REGADDR				GENMASK(14, 0)
#define SDW_SCP_ADDRPAGE2_MASK			GENMASK(22, 15)
#define SDW_SCP_ADDRPAGE1_MASK			GENMASK(30, 23)

#define SDW_REG_NO_PAGE				0x00008000
#define SDW_REG_OPTIONAL_PAGE			0x00010000
#define SDW_REG_MAX				0x48000000

#define SDW_DPN_SIZE				0x100
#define SDW_BANK1_OFFSET			0x10

/*
 * DP0 Interrupt register & bits
 *
 * Spec treats Status (RO) and Clear (WC) as separate but they are same
 * address, so treat as same register with WC.
 */

/* both INT and STATUS register are same */
#define SDW_DP0_INT				0x0
#define SDW_DP0_INTMASK				0x1
#define SDW_DP0_PORTCTRL			0x2
#define SDW_DP0_BLOCKCTRL1			0x3
#define SDW_DP0_PREPARESTATUS			0x4
#define SDW_DP0_PREPARECTRL			0x5

#define SDW_DP0_INT_TEST_FAIL			BIT(0)
#define SDW_DP0_INT_PORT_READY			BIT(1)
#define SDW_DP0_INT_BRA_FAILURE			BIT(2)
#define SDW_DP0_SDCA_CASCADE			BIT(3)
/* BIT(4) not allocated in SoundWire specification 1.2 */
#define SDW_DP0_INT_IMPDEF1			BIT(5)
#define SDW_DP0_INT_IMPDEF2			BIT(6)
#define SDW_DP0_INT_IMPDEF3			BIT(7)
#define SDW_DP0_INTERRUPTS			(SDW_DP0_INT_TEST_FAIL | \
						 SDW_DP0_INT_PORT_READY | \
						 SDW_DP0_INT_BRA_FAILURE | \
						 SDW_DP0_INT_IMPDEF1 | \
						 SDW_DP0_INT_IMPDEF2 | \
						 SDW_DP0_INT_IMPDEF3)

#define SDW_DP0_PORTCTRL_DATAMODE		GENMASK(3, 2)
#define SDW_DP0_PORTCTRL_NXTINVBANK		BIT(4)
#define SDW_DP0_PORTCTRL_BPT_PAYLD		GENMASK(7, 6)

#define SDW_DP0_CHANNELEN			0x20
#define SDW_DP0_SAMPLECTRL1			0x22
#define SDW_DP0_SAMPLECTRL2			0x23
#define SDW_DP0_OFFSETCTRL1			0x24
#define SDW_DP0_OFFSETCTRL2			0x25
#define SDW_DP0_HCTRL				0x26
#define SDW_DP0_LANECTRL			0x28

/* Both INT and STATUS register are same */
#define SDW_SCP_INT1				0x40
#define SDW_SCP_INTMASK1			0x41

#define SDW_SCP_INT1_PARITY			BIT(0)
#define SDW_SCP_INT1_BUS_CLASH			BIT(1)
#define SDW_SCP_INT1_IMPL_DEF			BIT(2)
#define SDW_SCP_INT1_SCP2_CASCADE		BIT(7)
#define SDW_SCP_INT1_PORT0_3			GENMASK(6, 3)

#define SDW_SCP_INTSTAT2			0x42
#define SDW_SCP_INTSTAT2_SCP3_CASCADE		BIT(7)
#define SDW_SCP_INTSTAT2_PORT4_10		GENMASK(6, 0)

#define SDW_SCP_INTSTAT3			0x43
#define SDW_SCP_INTSTAT3_PORT11_14		GENMASK(3, 0)

/* Number of interrupt status registers */
#define SDW_NUM_INT_STAT_REGISTERS		3

/* Number of interrupt clear registers */
#define SDW_NUM_INT_CLEAR_REGISTERS		1

#define SDW_SCP_CTRL				0x44
#define SDW_SCP_CTRL_CLK_STP_NOW		BIT(1)
#define SDW_SCP_CTRL_FORCE_RESET		BIT(7)

#define SDW_SCP_STAT				0x44
#define SDW_SCP_STAT_CLK_STP_NF			BIT(0)
#define SDW_SCP_STAT_HPHY_NOK			BIT(5)
#define SDW_SCP_STAT_CURR_BANK			BIT(6)

#define SDW_SCP_SYSTEMCTRL			0x45
#define SDW_SCP_SYSTEMCTRL_CLK_STP_PREP		BIT(0)
#define SDW_SCP_SYSTEMCTRL_CLK_STP_MODE		BIT(2)
#define SDW_SCP_SYSTEMCTRL_WAKE_UP_EN		BIT(3)
#define SDW_SCP_SYSTEMCTRL_HIGH_PHY		BIT(4)

#define SDW_SCP_SYSTEMCTRL_CLK_STP_MODE0	0
#define SDW_SCP_SYSTEMCTRL_CLK_STP_MODE1	BIT(2)

#define SDW_SCP_DEVNUMBER			0x46
#define SDW_SCP_HIGH_PHY_CHECK			0x47
#define SDW_SCP_ADDRPAGE1			0x48
#define SDW_SCP_ADDRPAGE2			0x49
#define SDW_SCP_KEEPEREN			0x4A
#define SDW_SCP_BANKDELAY			0x4B
#define SDW_SCP_COMMIT				0x4C

#define SDW_SCP_BUS_CLOCK_BASE			0x4D
#define SDW_SCP_BASE_CLOCK_FREQ			GENMASK(2, 0)
#define SDW_SCP_BASE_CLOCK_UNKNOWN		0x0
#define SDW_SCP_BASE_CLOCK_19200000_HZ		0x1
#define SDW_SCP_BASE_CLOCK_24000000_HZ		0x2
#define SDW_SCP_BASE_CLOCK_24576000_HZ		0x3
#define SDW_SCP_BASE_CLOCK_22579200_HZ		0x4
#define SDW_SCP_BASE_CLOCK_32000000_HZ		0x5
#define SDW_SCP_BASE_CLOCK_RESERVED		0x6
#define SDW_SCP_BASE_CLOCK_IMP_DEF		0x7

/* 0x4E is not allocated in SoundWire specification 1.2 */
#define SDW_SCP_TESTMODE			0x4F
#define SDW_SCP_DEVID_0				0x50
#define SDW_SCP_DEVID_1				0x51
#define SDW_SCP_DEVID_2				0x52
#define SDW_SCP_DEVID_3				0x53
#define SDW_SCP_DEVID_4				0x54
#define SDW_SCP_DEVID_5				0x55

/* Both INT and STATUS register are same */
#define SDW_SCP_SDCA_INT1			0x58
#define SDW_SCP_SDCA_INT_SDCA_0			BIT(0)
#define SDW_SCP_SDCA_INT_SDCA_1			BIT(1)
#define SDW_SCP_SDCA_INT_SDCA_2			BIT(2)
#define SDW_SCP_SDCA_INT_SDCA_3			BIT(3)
#define SDW_SCP_SDCA_INT_SDCA_4			BIT(4)
#define SDW_SCP_SDCA_INT_SDCA_5			BIT(5)
#define SDW_SCP_SDCA_INT_SDCA_6			BIT(6)
#define SDW_SCP_SDCA_INT_SDCA_7			BIT(7)

#define SDW_SCP_SDCA_INT2			0x59
#define SDW_SCP_SDCA_INT_SDCA_8			BIT(0)
#define SDW_SCP_SDCA_INT_SDCA_9			BIT(1)
#define SDW_SCP_SDCA_INT_SDCA_10		BIT(2)
#define SDW_SCP_SDCA_INT_SDCA_11		BIT(3)
#define SDW_SCP_SDCA_INT_SDCA_12		BIT(4)
#define SDW_SCP_SDCA_INT_SDCA_13		BIT(5)
#define SDW_SCP_SDCA_INT_SDCA_14		BIT(6)
#define SDW_SCP_SDCA_INT_SDCA_15		BIT(7)

#define SDW_SCP_SDCA_INT3			0x5A
#define SDW_SCP_SDCA_INT_SDCA_16		BIT(0)
#define SDW_SCP_SDCA_INT_SDCA_17		BIT(1)
#define SDW_SCP_SDCA_INT_SDCA_18		BIT(2)
#define SDW_SCP_SDCA_INT_SDCA_19		BIT(3)
#define SDW_SCP_SDCA_INT_SDCA_20		BIT(4)
#define SDW_SCP_SDCA_INT_SDCA_21		BIT(5)
#define SDW_SCP_SDCA_INT_SDCA_22		BIT(6)
#define SDW_SCP_SDCA_INT_SDCA_23		BIT(7)

#define SDW_SCP_SDCA_INT4			0x5B
#define SDW_SCP_SDCA_INT_SDCA_24		BIT(0)
#define SDW_SCP_SDCA_INT_SDCA_25		BIT(1)
#define SDW_SCP_SDCA_INT_SDCA_26		BIT(2)
#define SDW_SCP_SDCA_INT_SDCA_27		BIT(3)
#define SDW_SCP_SDCA_INT_SDCA_28		BIT(4)
#define SDW_SCP_SDCA_INT_SDCA_29		BIT(5)
#define SDW_SCP_SDCA_INT_SDCA_30		BIT(6)
/* BIT(7) not allocated in SoundWire 1.2 specification */

#define SDW_SCP_SDCA_INTMASK1			0x5C
#define SDW_SCP_SDCA_INTMASK_SDCA_0		BIT(0)
#define SDW_SCP_SDCA_INTMASK_SDCA_1		BIT(1)
#define SDW_SCP_SDCA_INTMASK_SDCA_2		BIT(2)
#define SDW_SCP_SDCA_INTMASK_SDCA_3		BIT(3)
#define SDW_SCP_SDCA_INTMASK_SDCA_4		BIT(4)
#define SDW_SCP_SDCA_INTMASK_SDCA_5		BIT(5)
#define SDW_SCP_SDCA_INTMASK_SDCA_6		BIT(6)
#define SDW_SCP_SDCA_INTMASK_SDCA_7		BIT(7)

#define SDW_SCP_SDCA_INTMASK2			0x5D
#define SDW_SCP_SDCA_INTMASK_SDCA_8		BIT(0)
#define SDW_SCP_SDCA_INTMASK_SDCA_9		BIT(1)
#define SDW_SCP_SDCA_INTMASK_SDCA_10		BIT(2)
#define SDW_SCP_SDCA_INTMASK_SDCA_11		BIT(3)
#define SDW_SCP_SDCA_INTMASK_SDCA_12		BIT(4)
#define SDW_SCP_SDCA_INTMASK_SDCA_13		BIT(5)
#define SDW_SCP_SDCA_INTMASK_SDCA_14		BIT(6)
#define SDW_SCP_SDCA_INTMASK_SDCA_15		BIT(7)

#define SDW_SCP_SDCA_INTMASK3			0x5E
#define SDW_SCP_SDCA_INTMASK_SDCA_16		BIT(0)
#define SDW_SCP_SDCA_INTMASK_SDCA_17		BIT(1)
#define SDW_SCP_SDCA_INTMASK_SDCA_18		BIT(2)
#define SDW_SCP_SDCA_INTMASK_SDCA_19		BIT(3)
#define SDW_SCP_SDCA_INTMASK_SDCA_20		BIT(4)
#define SDW_SCP_SDCA_INTMASK_SDCA_21		BIT(5)
#define SDW_SCP_SDCA_INTMASK_SDCA_22		BIT(6)
#define SDW_SCP_SDCA_INTMASK_SDCA_23		BIT(7)

#define SDW_SCP_SDCA_INTMASK4			0x5F
#define SDW_SCP_SDCA_INTMASK_SDCA_24		BIT(0)
#define SDW_SCP_SDCA_INTMASK_SDCA_25		BIT(1)
#define SDW_SCP_SDCA_INTMASK_SDCA_26		BIT(2)
#define SDW_SCP_SDCA_INTMASK_SDCA_27		BIT(3)
#define SDW_SCP_SDCA_INTMASK_SDCA_28		BIT(4)
#define SDW_SCP_SDCA_INTMASK_SDCA_29		BIT(5)
#define SDW_SCP_SDCA_INTMASK_SDCA_30		BIT(6)
/* BIT(7) not allocated in SoundWire 1.2 specification */

/* Banked Registers */
#define SDW_SCP_FRAMECTRL_B0			0x60
#define SDW_SCP_FRAMECTRL_B1			(0x60 + SDW_BANK1_OFFSET)
#define SDW_SCP_NEXTFRAME_B0			0x61
#define SDW_SCP_NEXTFRAME_B1			(0x61 + SDW_BANK1_OFFSET)

#define SDW_SCP_BUSCLOCK_SCALE_B0		0x62
#define SDW_SCP_BUSCLOCK_SCALE_B1		(0x62 + SDW_BANK1_OFFSET)
#define SDW_SCP_CLOCK_SCALE			GENMASK(3, 0)

/* PHY registers - CTRL and STAT are the same address */
#define SDW_SCP_PHY_OUT_CTRL_0			0x80
#define SDW_SCP_PHY_OUT_CTRL_1			0x81
#define SDW_SCP_PHY_OUT_CTRL_2			0x82
#define SDW_SCP_PHY_OUT_CTRL_3			0x83
#define SDW_SCP_PHY_OUT_CTRL_4			0x84
#define SDW_SCP_PHY_OUT_CTRL_5			0x85
#define SDW_SCP_PHY_OUT_CTRL_6			0x86
#define SDW_SCP_PHY_OUT_CTRL_7			0x87

#define SDW_SCP_CAP_LOAD_CTRL			GENMASK(2, 0)
#define SDW_SCP_DRIVE_STRENGTH_CTRL		GENMASK(5, 3)
#define SDW_SCP_SLEW_TIME_CTRL			GENMASK(7, 6)

/* Both INT and STATUS register is same */
#define SDW_DPN_INT(n)				(0x0 + SDW_DPN_SIZE * (n))
#define SDW_DPN_INTMASK(n)			(0x1 + SDW_DPN_SIZE * (n))
#define SDW_DPN_PORTCTRL(n)			(0x2 + SDW_DPN_SIZE * (n))
#define SDW_DPN_BLOCKCTRL1(n)			(0x3 + SDW_DPN_SIZE * (n))
#define SDW_DPN_PREPARESTATUS(n)		(0x4 + SDW_DPN_SIZE * (n))
#define SDW_DPN_PREPARECTRL(n)			(0x5 + SDW_DPN_SIZE * (n))

#define SDW_DPN_INT_TEST_FAIL			BIT(0)
#define SDW_DPN_INT_PORT_READY			BIT(1)
#define SDW_DPN_INT_IMPDEF1			BIT(5)
#define SDW_DPN_INT_IMPDEF2			BIT(6)
#define SDW_DPN_INT_IMPDEF3			BIT(7)
#define SDW_DPN_INTERRUPTS			(SDW_DPN_INT_TEST_FAIL | \
						 SDW_DPN_INT_PORT_READY | \
						 SDW_DPN_INT_IMPDEF1 | \
						 SDW_DPN_INT_IMPDEF2 | \
						 SDW_DPN_INT_IMPDEF3)

#define SDW_DPN_PORTCTRL_FLOWMODE		GENMASK(1, 0)
#define SDW_DPN_PORTCTRL_DATAMODE		GENMASK(3, 2)
#define SDW_DPN_PORTCTRL_NXTINVBANK		BIT(4)

#define SDW_DPN_BLOCKCTRL1_WDLEN		GENMASK(5, 0)

#define SDW_DPN_PREPARECTRL_CH_PREP		GENMASK(7, 0)

#define SDW_DPN_CHANNELEN_B0(n)			(0x20 + SDW_DPN_SIZE * (n))
#define SDW_DPN_CHANNELEN_B1(n)			(0x30 + SDW_DPN_SIZE * (n))

#define SDW_DPN_BLOCKCTRL2_B0(n)		(0x21 + SDW_DPN_SIZE * (n))
#define SDW_DPN_BLOCKCTRL2_B1(n)		(0x31 + SDW_DPN_SIZE * (n))

#define SDW_DPN_SAMPLECTRL1_B0(n)		(0x22 + SDW_DPN_SIZE * (n))
#define SDW_DPN_SAMPLECTRL1_B1(n)		(0x32 + SDW_DPN_SIZE * (n))

#define SDW_DPN_SAMPLECTRL2_B0(n)		(0x23 + SDW_DPN_SIZE * (n))
#define SDW_DPN_SAMPLECTRL2_B1(n)		(0x33 + SDW_DPN_SIZE * (n))

#define SDW_DPN_OFFSETCTRL1_B0(n)		(0x24 + SDW_DPN_SIZE * (n))
#define SDW_DPN_OFFSETCTRL1_B1(n)		(0x34 + SDW_DPN_SIZE * (n))

#define SDW_DPN_OFFSETCTRL2_B0(n)		(0x25 + SDW_DPN_SIZE * (n))
#define SDW_DPN_OFFSETCTRL2_B1(n)		(0x35 + SDW_DPN_SIZE * (n))

#define SDW_DPN_HCTRL_B0(n)			(0x26 + SDW_DPN_SIZE * (n))
#define SDW_DPN_HCTRL_B1(n)			(0x36 + SDW_DPN_SIZE * (n))

#define SDW_DPN_BLOCKCTRL3_B0(n)		(0x27 + SDW_DPN_SIZE * (n))
#define SDW_DPN_BLOCKCTRL3_B1(n)		(0x37 + SDW_DPN_SIZE * (n))

#define SDW_DPN_LANECTRL_B0(n)			(0x28 + SDW_DPN_SIZE * (n))
#define SDW_DPN_LANECTRL_B1(n)			(0x38 + SDW_DPN_SIZE * (n))

#define SDW_DPN_SAMPLECTRL_LOW			GENMASK(7, 0)
#define SDW_DPN_SAMPLECTRL_HIGH			GENMASK(15, 8)

#define SDW_DPN_HCTRL_HSTART			GENMASK(7, 4)
#define SDW_DPN_HCTRL_HSTOP			GENMASK(3, 0)

#define SDW_NUM_CASC_PORT_INTSTAT1		4
#define SDW_CASC_PORT_START_INTSTAT1		0
#define SDW_CASC_PORT_MASK_INTSTAT1		0x8
#define SDW_CASC_PORT_REG_OFFSET_INTSTAT1	0x0

#define SDW_NUM_CASC_PORT_INTSTAT2		7
#define SDW_CASC_PORT_START_INTSTAT2		4
#define SDW_CASC_PORT_MASK_INTSTAT2		1
#define SDW_CASC_PORT_REG_OFFSET_INTSTAT2	1

#define SDW_NUM_CASC_PORT_INTSTAT3		4
#define SDW_CASC_PORT_START_INTSTAT3		11
#define SDW_CASC_PORT_MASK_INTSTAT3		1
#define SDW_CASC_PORT_REG_OFFSET_INTSTAT3	2

/*
 * v1.2 device - SDCA address mapping
 *
 * Spec definition
 *	Bits		Contents
 *	31		0 (required by addressing range)
 *	30:26		0b10000 (Control Prefix)
 *	25		0 (Reserved)
 *	24:22		Function Number [2:0]
 *	21		Entity[6]
 *	20:19		Control Selector[5:4]
 *	18		0 (Reserved)
 *	17:15		Control Number[5:3]
 *	14		Next
 *	13		MBQ
 *	12:7		Entity[5:0]
 *	6:3		Control Selector[3:0]
 *	2:0		Control Number[2:0]
 */

#define SDW_SDCA_CTL(fun, ent, ctl, ch)		(BIT(30) |				\
						 (((fun) & GENMASK(2, 0)) << 22) |	\
						 (((ent) & BIT(6)) << 15) |		\
						 (((ent) & GENMASK(5, 0)) << 7) |	\
						 (((ctl) & GENMASK(5, 4)) << 15) |	\
						 (((ctl) & GENMASK(3, 0)) << 3) |	\
						 (((ch) & GENMASK(5, 3)) << 12) |	\
						 ((ch) & GENMASK(2, 0)))

#define SDW_SDCA_CTL_FUNC(reg) FIELD_GET(GENMASK(24, 22), (reg))
#define SDW_SDCA_CTL_ENT(reg) ((FIELD_GET(BIT(21), (reg)) << 6) | \
				FIELD_GET(GENMASK(12, 7), (reg)))
#define SDW_SDCA_CTL_CSEL(reg) ((FIELD_GET(GENMASK(20, 19), (reg)) << 4) | \
				 FIELD_GET(GENMASK(6, 3), (reg)))
#define SDW_SDCA_CTL_CNUM(reg) ((FIELD_GET(GENMASK(17, 15), (reg)) << 3) | \
				 FIELD_GET(GENMASK(2, 0), (reg)))

#define SDW_SDCA_MBQ_CTL(reg)			((reg) | BIT(13))
#define SDW_SDCA_NEXT_CTL(reg)			((reg) | BIT(14))

/* Check the reserved and fixed bits in address */
#define SDW_SDCA_VALID_CTL(reg) (((reg) & (GENMASK(31, 25) | BIT(18) | BIT(13))) == BIT(30))

#define SDW_SDCA_MAX_REGISTER			0x47FFFFFF

#endif /* __SDW_REGISTERS_H */