xref: /haiku/src/add-ons/kernel/busses/i2c/pch/pch_i2c_hardware.h (revision 8426404f97ad21770ee22e5765c3092e0a31f989)

/*
 * Copyright 2020, Jérôme Duval, jerome.duval@gmail.com.
 *
 * Distributed under the terms of the MIT License.
 */
#ifndef _PCH_I2C_HARDWARE_H
#define _PCH_I2C_HARDWARE_H


#define PCH_IC_CON				0x00
#define PCH_IC_CON_MASTER			0x1
#define PCH_IC_CON_SPEED_STD		0x2
#define PCH_IC_CON_SPEED_FAST		0x4
#define PCH_IC_CON_SPEED_HIGH		0x6
#define PCH_IC_CON_10BIT_ADDR_MASTER 0x10
#define PCH_IC_CON_RESTART_EN		0x20
#define PCH_IC_CON_SLAVE_DISABLE	0x40
#define PCH_IC_CON_TX_EMPTY_CTRL	0x100
#define PCH_IC_TAR				0x04
#define PCH_IC_HS_MADDR			0x08
#define PCH_IC_DATA_CMD			0x10
#define PCH_IC_DATA_CMD_READ		(1 << 8)
#define PCH_IC_DATA_CMD_STOP		(1 << 9)
#define PCH_IC_DATA_CMD_RESTART		(1 << 10)
#define PCH_IC_SS_SCL_HCNT		0x14
#define PCH_IC_SS_SCL_LCNT		0x18
#define PCH_IC_FS_SCL_HCNT		0x1c
#define PCH_IC_FS_SCL_LCNT		0x20
#define PCH_IC_HS_SCL_HCNT		0x24
#define PCH_IC_HS_SCL_LCNT		0x28
#define PCH_IC_INTR_STAT		0x2c
#define PCH_IC_INTR_STAT_RX_UNDER	(1 << 0)
#define PCH_IC_INTR_STAT_RX_OVER	(1 << 1)
#define PCH_IC_INTR_STAT_RX_FULL	(1 << 2)
#define PCH_IC_INTR_STAT_TX_OVER	(1 << 3)
#define PCH_IC_INTR_STAT_TX_EMPTY	(1 << 4)
#define PCH_IC_INTR_STAT_RD_REQ		(1 << 5)
#define PCH_IC_INTR_STAT_TX_ABRT	(1 << 6)
#define PCH_IC_INTR_STAT_RX_DONE	(1 << 7)
#define PCH_IC_INTR_STAT_ACTIVITY	(1 << 8)
#define PCH_IC_INTR_STAT_STOP_DET	(1 << 9)
#define PCH_IC_INTR_STAT_START_DET	(1 << 10)
#define PCH_IC_INTR_STAT_GEN_CALL	(1 << 11)
#define PCH_IC_INTR_STAT_MST_ON_HOLD	(1 << 13)

#define PCH_IC_INTR_MASK		0x30
#define PCH_IC_RAW_INTR_STAT	0x34
#define PCH_IC_RX_TL			0x38
#define PCH_IC_TX_TL			0x3c
#define PCH_IC_CLR_INTR			0x40
#define PCH_IC_CLR_RX_UNDER		0x44
#define PCH_IC_CLR_RX_OVER		0x48
#define PCH_IC_CLR_TX_OVER		0x4c
#define PCH_IC_CLR_RD_REQ		0x50
#define PCH_IC_CLR_TX_ABRT		0x54
#define PCH_IC_CLR_RX_DONE		0x58
#define PCH_IC_CLR_ACTIVITY		0x5c
#define PCH_IC_CLR_STOP_DET		0x60
#define PCH_IC_CLR_START_DET	0x64
#define PCH_IC_CLR_GEN_CALL		0x68
#define PCH_IC_ENABLE			0x6c
#define PCH_IC_STATUS			0x70
#define PCH_IC_STATUS_ACTIVITY		0x1
#define PCH_IC_TXFLR			0x74
#define PCH_IC_RXFLR			0x78
#define PCH_IC_SDA_HOLD			0x7c
#define PCH_IC_TX_ABRT_SOURCE	0x80
#define PCH_IC_DMA_CR			0x88
#define PCH_IC_DMA_TDLR			0x8c
#define PCH_IC_DMA_RDLR			0x90
#define PCH_IC_ACK_GENERAL_CALL	0x98
#define PCH_IC_ENABLE_STATUS	0x9c
#define PCH_IC_FS_SPKLEN		0xa0
#define PCH_IC_CLR_RESTRART_DET	0xa8
#define PCH_IC_COMP_PARAM1		0xf4
#define PCH_IC_COMP_PARAM1_RX(x)	(1 + (((x) >> 8) & 0xff))
#define PCH_IC_COMP_PARAM1_TX(x)	(1 + (((x) >> 16) & 0xff))
#define PCH_IC_COMP_VERSION		0xf8
#define PCH_IC_COMP_VERSION_MIN	0x3131312a

#define PCH_SUP_RESETS			0x204
#define PCH_SUP_RESETS_FUNC				0x3
#define PCH_SUP_RESETS_IDMA				0x4
#define PCH_SUP_ACTIVELTR_VALUE	0x210
#define PCH_SUP_IDLELTR_VALUE	0x214
#define PCH_SUP_TX_ACK_COUNT	0x218
#define PCH_SUP_RX_BYTE_COUNT	0x21c
#define PCH_SUP_TX_COMPLETE_INTR_STAT	0x220
#define PCH_SUP_TX_COMPLETE_INTR_CLR	0x224
#define PCH_SUP_SW_SCRATCH_0	0x228
#define PCH_SUP_SW_SCRATCH_1	0x22c
#define PCH_SUP_SW_SCRATCH_2	0x230
#define PCH_SUP_SW_SCRATCH_3	0x234
#define PCH_SUP_CLOCK_GATE		0x238
#define PCH_SUP_REMAP_ADDR_LO	0x240
#define PCH_SUP_REMAP_ADDR_HI	0x244
#define PCH_SUP_DEVIDLE_CONTROL	0x24c
#define PCH_SUP_CAPABLITIES		0x2fc
#define PCH_SUP_CAPABLITIES_TYPE_MASK	0xf
#define PCH_SUP_CAPABLITIES_TYPE_SHIFT	4


#endif // _PCH_I2C_HARDWARE_H