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