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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* ISH registers definitions
*
* Copyright (c) 2012-2016, Intel Corporation.
*/
#ifndef _ISHTP_ISH_REGS_H_
#define _ISHTP_ISH_REGS_H_
/*** IPC PCI Offsets and sizes ***/
/* ISH IPC Base Address */
#define IPC_REG_BASE 0x0000
/* Peripheral Interrupt Status Register */
#define IPC_REG_PISR_CHV_AB (IPC_REG_BASE + 0x00)
/* Peripheral Interrupt Mask Register */
#define IPC_REG_PIMR_CHV_AB (IPC_REG_BASE + 0x04)
/*BXT, CHV_K0*/
/*Peripheral Interrupt Status Register */
#define IPC_REG_PISR_BXT (IPC_REG_BASE + 0x0C)
/*Peripheral Interrupt Mask Register */
#define IPC_REG_PIMR_BXT (IPC_REG_BASE + 0x08)
/***********************************/
/* ISH Host Firmware status Register */
#define IPC_REG_ISH_HOST_FWSTS (IPC_REG_BASE + 0x34)
/* Host Communication Register */
#define IPC_REG_HOST_COMM (IPC_REG_BASE + 0x38)
/* Reset register */
#define IPC_REG_ISH_RST (IPC_REG_BASE + 0x44)
/* Inbound doorbell register Host to ISH */
#define IPC_REG_HOST2ISH_DRBL (IPC_REG_BASE + 0x48)
/* Outbound doorbell register ISH to Host */
#define IPC_REG_ISH2HOST_DRBL (IPC_REG_BASE + 0x54)
/* ISH to HOST message registers */
#define IPC_REG_ISH2HOST_MSG (IPC_REG_BASE + 0x60)
/* HOST to ISH message registers */
#define IPC_REG_HOST2ISH_MSG (IPC_REG_BASE + 0xE0)
/* REMAP2 to enable DMA (D3 RCR) */
#define IPC_REG_ISH_RMP2 (IPC_REG_BASE + 0x368)
#define IPC_REG_MAX (IPC_REG_BASE + 0x400)
/*** register bits - HISR ***/
/* bit corresponds HOST2ISH interrupt in PISR and PIMR registers */
#define IPC_INT_HOST2ISH_BIT (1<<0)
/***********************************/
/*CHV_A0, CHV_B0*/
/* bit corresponds ISH2HOST interrupt in PISR and PIMR registers */
#define IPC_INT_ISH2HOST_BIT_CHV_AB (1<<3)
/*BXT, CHV_K0*/
/* bit corresponds ISH2HOST interrupt in PISR and PIMR registers */
#define IPC_INT_ISH2HOST_BIT_BXT (1<<0)
/***********************************/
/* bit corresponds ISH2HOST busy clear interrupt in PIMR register */
#define IPC_INT_ISH2HOST_CLR_MASK_BIT (1<<11)
/* offset of ISH2HOST busy clear interrupt in IPC_BUSY_CLR register */
#define IPC_INT_ISH2HOST_CLR_OFFS (0)
/* bit corresponds ISH2HOST busy clear interrupt in IPC_BUSY_CLR register */
#define IPC_INT_ISH2HOST_CLR_BIT (1<<IPC_INT_ISH2HOST_CLR_OFFS)
/* bit corresponds busy bit in doorbell registers */
#define IPC_DRBL_BUSY_OFFS (31)
#define IPC_DRBL_BUSY_BIT (1<<IPC_DRBL_BUSY_OFFS)
#define IPC_HOST_OWNS_MSG_OFFS (30)
/*
* A0: bit means that host owns MSGnn registers and is reading them.
* ISH FW may not write to them
*/
#define IPC_HOST_OWNS_MSG_BIT (1<<IPC_HOST_OWNS_MSG_OFFS)
/*
* Host status bits (HOSTCOMM)
*/
/* bit corresponds host ready bit in Host Status Register (HOST_COMM) */
#define IPC_HOSTCOMM_READY_OFFS (7)
#define IPC_HOSTCOMM_READY_BIT (1<<IPC_HOSTCOMM_READY_OFFS)
/***********************************/
/*CHV_A0, CHV_B0*/
#define IPC_HOSTCOMM_INT_EN_OFFS_CHV_AB (31)
#define IPC_HOSTCOMM_INT_EN_BIT_CHV_AB \
(1<<IPC_HOSTCOMM_INT_EN_OFFS_CHV_AB)
/*BXT, CHV_K0*/
#define IPC_PIMR_INT_EN_OFFS_BXT (0)
#define IPC_PIMR_INT_EN_BIT_BXT (1<<IPC_PIMR_INT_EN_OFFS_BXT)
#define IPC_HOST2ISH_BUSYCLEAR_MASK_OFFS_BXT (8)
#define IPC_HOST2ISH_BUSYCLEAR_MASK_BIT \
(1<<IPC_HOST2ISH_BUSYCLEAR_MASK_OFFS_BXT)
/***********************************/
/*
* both Host and ISH have ILUP at bit 0
* bit corresponds host ready bit in both status registers
*/
#define IPC_ILUP_OFFS (0)
#define IPC_ILUP_BIT (1<<IPC_ILUP_OFFS)
/*
* ISH FW status bits in ISH FW Status Register
*/
#define IPC_ISH_FWSTS_SHIFT 12
#define IPC_ISH_FWSTS_MASK GENMASK(15, 12)
#define IPC_GET_ISH_FWSTS(status) \
(((status) & IPC_ISH_FWSTS_MASK) >> IPC_ISH_FWSTS_SHIFT)
/*
* FW status bits (relevant)
*/
#define IPC_FWSTS_ILUP 0x1
#define IPC_FWSTS_ISHTP_UP (1<<1)
#define IPC_FWSTS_DMA0 (1<<16)
#define IPC_FWSTS_DMA1 (1<<17)
#define IPC_FWSTS_DMA2 (1<<18)
#define IPC_FWSTS_DMA3 (1<<19)
#define IPC_ISH_IN_DMA \
(IPC_FWSTS_DMA0 | IPC_FWSTS_DMA1 | IPC_FWSTS_DMA2 | IPC_FWSTS_DMA3)
/* bit corresponds host ready bit in ISH FW Status Register */
#define IPC_ISH_ISHTP_READY_OFFS (1)
#define IPC_ISH_ISHTP_READY_BIT (1<<IPC_ISH_ISHTP_READY_OFFS)
#define IPC_RMP2_DMA_ENABLED 0x1 /* Value to enable DMA, per D3 RCR */
#define IPC_MSG_MAX_SIZE 0x80
#define IPC_HEADER_LENGTH_MASK 0x03FF
#define IPC_HEADER_PROTOCOL_MASK 0x0F
#define IPC_HEADER_MNG_CMD_MASK 0x0F
#define IPC_HEADER_LENGTH_OFFSET 0
#define IPC_HEADER_PROTOCOL_OFFSET 10
#define IPC_HEADER_MNG_CMD_OFFSET 16
#define IPC_HEADER_GET_LENGTH(drbl_reg) \
(((drbl_reg) >> IPC_HEADER_LENGTH_OFFSET)&IPC_HEADER_LENGTH_MASK)
#define IPC_HEADER_GET_PROTOCOL(drbl_reg) \
(((drbl_reg) >> IPC_HEADER_PROTOCOL_OFFSET)&IPC_HEADER_PROTOCOL_MASK)
#define IPC_HEADER_GET_MNG_CMD(drbl_reg) \
(((drbl_reg) >> IPC_HEADER_MNG_CMD_OFFSET)&IPC_HEADER_MNG_CMD_MASK)
#define IPC_IS_BUSY(drbl_reg) \
(((drbl_reg)&IPC_DRBL_BUSY_BIT) == ((uint32_t)IPC_DRBL_BUSY_BIT))
/***********************************/
/*CHV_A0, CHV_B0*/
#define IPC_INT_FROM_ISH_TO_HOST_CHV_AB(drbl_reg) \
(((drbl_reg)&IPC_INT_ISH2HOST_BIT_CHV_AB) == \
((u32)IPC_INT_ISH2HOST_BIT_CHV_AB))
/*BXT, CHV_K0*/
#define IPC_INT_FROM_ISH_TO_HOST_BXT(drbl_reg) \
(((drbl_reg)&IPC_INT_ISH2HOST_BIT_BXT) == \
((u32)IPC_INT_ISH2HOST_BIT_BXT))
/***********************************/
#define IPC_BUILD_HEADER(length, protocol, busy) \
(((busy)<<IPC_DRBL_BUSY_OFFS) | \
((protocol) << IPC_HEADER_PROTOCOL_OFFSET) | \
((length)<<IPC_HEADER_LENGTH_OFFSET))
#define IPC_BUILD_MNG_MSG(cmd, length) \
(((1)<<IPC_DRBL_BUSY_OFFS)| \
((IPC_PROTOCOL_MNG)<<IPC_HEADER_PROTOCOL_OFFSET)| \
((cmd)<<IPC_HEADER_MNG_CMD_OFFSET)| \
((length)<<IPC_HEADER_LENGTH_OFFSET))
#define IPC_SET_HOST_READY(host_status) \
((host_status) |= (IPC_HOSTCOMM_READY_BIT))
#define IPC_SET_HOST_ILUP(host_status) \
((host_status) |= (IPC_ILUP_BIT))
#define IPC_CLEAR_HOST_READY(host_status) \
((host_status) ^= (IPC_HOSTCOMM_READY_BIT))
#define IPC_CLEAR_HOST_ILUP(host_status) \
((host_status) ^= (IPC_ILUP_BIT))
/* todo - temp until PIMR HW ready */
#define IPC_HOST_BUSY_READING_OFFS 6
/* bit corresponds host ready bit in Host Status Register (HOST_COMM) */
#define IPC_HOST_BUSY_READING_BIT (1<<IPC_HOST_BUSY_READING_OFFS)
#define IPC_SET_HOST_BUSY_READING(host_status) \
((host_status) |= (IPC_HOST_BUSY_READING_BIT))
#define IPC_CLEAR_HOST_BUSY_READING(host_status)\
((host_status) ^= (IPC_HOST_BUSY_READING_BIT))
#define IPC_IS_ISH_ISHTP_READY(ish_status) \
(((ish_status) & IPC_ISH_ISHTP_READY_BIT) == \
((uint32_t)IPC_ISH_ISHTP_READY_BIT))
#define IPC_IS_ISH_ILUP(ish_status) \
(((ish_status) & IPC_ILUP_BIT) == ((uint32_t)IPC_ILUP_BIT))
#define IPC_PROTOCOL_ISHTP 1
#define IPC_PROTOCOL_MNG 3
#define MNG_RX_CMPL_ENABLE 0
#define MNG_RX_CMPL_DISABLE 1
#define MNG_RX_CMPL_INDICATION 2
#define MNG_RESET_NOTIFY 3
#define MNG_RESET_NOTIFY_ACK 4
#define MNG_SYNC_FW_CLOCK 5
#define MNG_ILLEGAL_CMD 0xFF
#endif /* _ISHTP_ISH_REGS_H_ */
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