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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* NWL MIPI DSI host driver
*
* Copyright (C) 2017 NXP
* Copyright (C) 2019 Purism SPC
*/
#ifndef __NWL_DSI_H__
#define __NWL_DSI_H__
/* DSI HOST registers */
#define NWL_DSI_CFG_NUM_LANES 0x0
#define NWL_DSI_CFG_NONCONTINUOUS_CLK 0x4
#define NWL_DSI_CFG_T_PRE 0x8
#define NWL_DSI_CFG_T_POST 0xc
#define NWL_DSI_CFG_TX_GAP 0x10
#define NWL_DSI_CFG_AUTOINSERT_EOTP 0x14
#define NWL_DSI_CFG_EXTRA_CMDS_AFTER_EOTP 0x18
#define NWL_DSI_CFG_HTX_TO_COUNT 0x1c
#define NWL_DSI_CFG_LRX_H_TO_COUNT 0x20
#define NWL_DSI_CFG_BTA_H_TO_COUNT 0x24
#define NWL_DSI_CFG_TWAKEUP 0x28
#define NWL_DSI_CFG_STATUS_OUT 0x2c
#define NWL_DSI_RX_ERROR_STATUS 0x30
/* DSI DPI registers */
#define NWL_DSI_PIXEL_PAYLOAD_SIZE 0x200
#define NWL_DSI_PIXEL_FIFO_SEND_LEVEL 0x204
#define NWL_DSI_INTERFACE_COLOR_CODING 0x208
#define NWL_DSI_PIXEL_FORMAT 0x20c
#define NWL_DSI_VSYNC_POLARITY 0x210
#define NWL_DSI_VSYNC_POLARITY_ACTIVE_LOW 0
#define NWL_DSI_VSYNC_POLARITY_ACTIVE_HIGH BIT(1)
#define NWL_DSI_HSYNC_POLARITY 0x214
#define NWL_DSI_HSYNC_POLARITY_ACTIVE_LOW 0
#define NWL_DSI_HSYNC_POLARITY_ACTIVE_HIGH BIT(1)
#define NWL_DSI_VIDEO_MODE 0x218
#define NWL_DSI_HFP 0x21c
#define NWL_DSI_HBP 0x220
#define NWL_DSI_HSA 0x224
#define NWL_DSI_ENABLE_MULT_PKTS 0x228
#define NWL_DSI_VBP 0x22c
#define NWL_DSI_VFP 0x230
#define NWL_DSI_BLLP_MODE 0x234
#define NWL_DSI_USE_NULL_PKT_BLLP 0x238
#define NWL_DSI_VACTIVE 0x23c
#define NWL_DSI_VC 0x240
/* DSI APB PKT control */
#define NWL_DSI_TX_PAYLOAD 0x280
#define NWL_DSI_PKT_CONTROL 0x284
#define NWL_DSI_SEND_PACKET 0x288
#define NWL_DSI_PKT_STATUS 0x28c
#define NWL_DSI_PKT_FIFO_WR_LEVEL 0x290
#define NWL_DSI_PKT_FIFO_RD_LEVEL 0x294
#define NWL_DSI_RX_PAYLOAD 0x298
#define NWL_DSI_RX_PKT_HEADER 0x29c
/* DSI IRQ handling */
#define NWL_DSI_IRQ_STATUS 0x2a0
#define NWL_DSI_SM_NOT_IDLE BIT(0)
#define NWL_DSI_TX_PKT_DONE BIT(1)
#define NWL_DSI_DPHY_DIRECTION BIT(2)
#define NWL_DSI_TX_FIFO_OVFLW BIT(3)
#define NWL_DSI_TX_FIFO_UDFLW BIT(4)
#define NWL_DSI_RX_FIFO_OVFLW BIT(5)
#define NWL_DSI_RX_FIFO_UDFLW BIT(6)
#define NWL_DSI_RX_PKT_HDR_RCVD BIT(7)
#define NWL_DSI_RX_PKT_PAYLOAD_DATA_RCVD BIT(8)
#define NWL_DSI_BTA_TIMEOUT BIT(29)
#define NWL_DSI_LP_RX_TIMEOUT BIT(30)
#define NWL_DSI_HS_TX_TIMEOUT BIT(31)
#define NWL_DSI_IRQ_STATUS2 0x2a4
#define NWL_DSI_SINGLE_BIT_ECC_ERR BIT(0)
#define NWL_DSI_MULTI_BIT_ECC_ERR BIT(1)
#define NWL_DSI_CRC_ERR BIT(2)
#define NWL_DSI_IRQ_MASK 0x2a8
#define NWL_DSI_SM_NOT_IDLE_MASK BIT(0)
#define NWL_DSI_TX_PKT_DONE_MASK BIT(1)
#define NWL_DSI_DPHY_DIRECTION_MASK BIT(2)
#define NWL_DSI_TX_FIFO_OVFLW_MASK BIT(3)
#define NWL_DSI_TX_FIFO_UDFLW_MASK BIT(4)
#define NWL_DSI_RX_FIFO_OVFLW_MASK BIT(5)
#define NWL_DSI_RX_FIFO_UDFLW_MASK BIT(6)
#define NWL_DSI_RX_PKT_HDR_RCVD_MASK BIT(7)
#define NWL_DSI_RX_PKT_PAYLOAD_DATA_RCVD_MASK BIT(8)
#define NWL_DSI_BTA_TIMEOUT_MASK BIT(29)
#define NWL_DSI_LP_RX_TIMEOUT_MASK BIT(30)
#define NWL_DSI_HS_TX_TIMEOUT_MASK BIT(31)
#define NWL_DSI_IRQ_MASK2 0x2ac
#define NWL_DSI_SINGLE_BIT_ECC_ERR_MASK BIT(0)
#define NWL_DSI_MULTI_BIT_ECC_ERR_MASK BIT(1)
#define NWL_DSI_CRC_ERR_MASK BIT(2)
/*
* PKT_CONTROL format:
* [15: 0] - word count
* [17:16] - virtual channel
* [23:18] - data type
* [24] - LP or HS select (0 - LP, 1 - HS)
* [25] - perform BTA after packet is sent
* [26] - perform BTA only, no packet tx
*/
#define NWL_DSI_WC(x) FIELD_PREP(GENMASK(15, 0), (x))
#define NWL_DSI_TX_VC(x) FIELD_PREP(GENMASK(17, 16), (x))
#define NWL_DSI_TX_DT(x) FIELD_PREP(GENMASK(23, 18), (x))
#define NWL_DSI_HS_SEL(x) FIELD_PREP(GENMASK(24, 24), (x))
#define NWL_DSI_BTA_TX(x) FIELD_PREP(GENMASK(25, 25), (x))
#define NWL_DSI_BTA_NO_TX(x) FIELD_PREP(GENMASK(26, 26), (x))
/*
* RX_PKT_HEADER format:
* [15: 0] - word count
* [21:16] - data type
* [23:22] - virtual channel
*/
#define NWL_DSI_RX_DT(x) FIELD_GET(GENMASK(21, 16), (x))
#define NWL_DSI_RX_VC(x) FIELD_GET(GENMASK(23, 22), (x))
/* DSI Video mode */
#define NWL_DSI_VM_BURST_MODE_WITH_SYNC_PULSES 0
#define NWL_DSI_VM_NON_BURST_MODE_WITH_SYNC_EVENTS BIT(0)
#define NWL_DSI_VM_BURST_MODE BIT(1)
/* * DPI color coding */
#define NWL_DSI_DPI_16_BIT_565_PACKED 0
#define NWL_DSI_DPI_16_BIT_565_ALIGNED 1
#define NWL_DSI_DPI_16_BIT_565_SHIFTED 2
#define NWL_DSI_DPI_18_BIT_PACKED 3
#define NWL_DSI_DPI_18_BIT_ALIGNED 4
#define NWL_DSI_DPI_24_BIT 5
/* * DPI Pixel format */
#define NWL_DSI_PIXEL_FORMAT_16 0
#define NWL_DSI_PIXEL_FORMAT_18 BIT(0)
#define NWL_DSI_PIXEL_FORMAT_18L BIT(1)
#define NWL_DSI_PIXEL_FORMAT_24 (BIT(0) | BIT(1))
#endif /* __NWL_DSI_H__ */
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