/* SPDX-License-Identifier: GPL-2.0-only */

/*
 * Copyright (C) 2017-2020 Raspberry Pi Trading.
 * Dave Stevenson <dave.stevenson@raspberrypi.com>
 */

#ifndef VC4_REGS_UNICAM_H
#define VC4_REGS_UNICAM_H

#include <linux/bits.h>

/*
 * The following values are taken from files found within the code drop
 * made by Broadcom for the BCM21553 Graphics Driver, predominantly in
 * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h.
 * They have been modified to be only the register offset.
 */
#define UNICAM_CTRL             0x000
#define UNICAM_STA              0x004
#define UNICAM_ANA              0x008
#define UNICAM_PRI              0x00c
#define UNICAM_CLK              0x010
#define UNICAM_CLT              0x014
#define UNICAM_DAT0             0x018
#define UNICAM_DAT1             0x01c
#define UNICAM_DAT2             0x020
#define UNICAM_DAT3             0x024
#define UNICAM_DLT              0x028
#define UNICAM_CMP0             0x02c
#define UNICAM_CMP1             0x030
#define UNICAM_CAP0             0x034
#define UNICAM_CAP1             0x038
#define UNICAM_ICTL             0x100
#define UNICAM_ISTA             0x104
#define UNICAM_IDI0             0x108
#define UNICAM_IPIPE            0x10c
#define UNICAM_IBSA0            0x110
#define UNICAM_IBEA0            0x114
#define UNICAM_IBLS             0x118
#define UNICAM_IBWP             0x11c
#define UNICAM_IHWIN            0x120
#define UNICAM_IHSTA            0x124
#define UNICAM_IVWIN            0x128
#define UNICAM_IVSTA            0x12c
#define UNICAM_ICC              0x130
#define UNICAM_ICS              0x134
#define UNICAM_IDC              0x138
#define UNICAM_IDPO             0x13c
#define UNICAM_IDCA             0x140
#define UNICAM_IDCD             0x144
#define UNICAM_IDS              0x148
#define UNICAM_DCS              0x200
#define UNICAM_DBSA0            0x204
#define UNICAM_DBEA0            0x208
#define UNICAM_DBWP             0x20c
#define UNICAM_DBCTL            0x300
#define UNICAM_IBSA1            0x304
#define UNICAM_IBEA1            0x308
#define UNICAM_IDI1             0x30c
#define UNICAM_DBSA1            0x310
#define UNICAM_DBEA1            0x314
#define UNICAM_MISC             0x400

/*
 * The following bitmasks are from the kernel released by Broadcom
 * for Android - https://android.googlesource.com/kernel/bcm/
 * The Rhea, Hawaii, and Java chips all contain the same VideoCore4
 * Unicam block as BCM2835, as defined in eg
 * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar.
 * Values reworked to use the kernel BIT and GENMASK macros.
 *
 * Some of the bit mnenomics have been amended to match the datasheet.
 */
/* UNICAM_CTRL Register */
#define UNICAM_CPE              BIT(0)
#define UNICAM_MEM              BIT(1)
#define UNICAM_CPR              BIT(2)
#define UNICAM_CPM_MASK         GENMASK(3, 3)
#define UNICAM_CPM_CSI2         0
#define UNICAM_CPM_CCP2         1
#define UNICAM_SOE              BIT(4)
#define UNICAM_DCM_MASK         GENMASK(5, 5)
#define UNICAM_DCM_STROBE       0
#define UNICAM_DCM_DATA         1
#define UNICAM_SLS              BIT(6)
#define UNICAM_PFT_MASK         GENMASK(11, 8)
#define UNICAM_OET_MASK         GENMASK(20, 12)

/* UNICAM_STA Register */
#define UNICAM_SYN              BIT(0)
#define UNICAM_CS               BIT(1)
#define UNICAM_SBE              BIT(2)
#define UNICAM_PBE              BIT(3)
#define UNICAM_HOE              BIT(4)
#define UNICAM_PLE              BIT(5)
#define UNICAM_SSC              BIT(6)
#define UNICAM_CRCE             BIT(7)
#define UNICAM_OES              BIT(8)
#define UNICAM_IFO              BIT(9)
#define UNICAM_OFO              BIT(10)
#define UNICAM_BFO              BIT(11)
#define UNICAM_DL               BIT(12)
#define UNICAM_PS               BIT(13)
#define UNICAM_IS               BIT(14)
#define UNICAM_PI0              BIT(15)
#define UNICAM_PI1              BIT(16)
#define UNICAM_FSI_S            BIT(17)
#define UNICAM_FEI_S            BIT(18)
#define UNICAM_LCI_S            BIT(19)
#define UNICAM_BUF0_RDY         BIT(20)
#define UNICAM_BUF0_NO          BIT(21)
#define UNICAM_BUF1_RDY         BIT(22)
#define UNICAM_BUF1_NO          BIT(23)
#define UNICAM_DI               BIT(24)

#define UNICAM_STA_MASK_ALL \
        (UNICAM_SBE  | UNICAM_PBE | UNICAM_HOE | UNICAM_PLE | UNICAM_SSC | \
         UNICAM_CRCE | UNICAM_IFO | UNICAM_OFO | UNICAM_DL  | UNICAM_PS  | \
         UNICAM_PI0  | UNICAM_PI1)

/* UNICAM_ANA Register */
#define UNICAM_APD              BIT(0)
#define UNICAM_BPD              BIT(1)
#define UNICAM_AR               BIT(2)
#define UNICAM_DDL              BIT(3)
#define UNICAM_CTATADJ_MASK     GENMASK(7, 4)
#define UNICAM_PTATADJ_MASK     GENMASK(11, 8)

/* UNICAM_PRI Register */
#define UNICAM_PE               BIT(0)
#define UNICAM_PT_MASK          GENMASK(2, 1)
#define UNICAM_NP_MASK          GENMASK(7, 4)
#define UNICAM_PP_MASK          GENMASK(11, 8)
#define UNICAM_BS_MASK          GENMASK(15, 12)
#define UNICAM_BL_MASK          GENMASK(17, 16)

/* UNICAM_CLK Register */
#define UNICAM_CLE              BIT(0)
#define UNICAM_CLPD             BIT(1)
#define UNICAM_CLLPE            BIT(2)
#define UNICAM_CLHSE            BIT(3)
#define UNICAM_CLTRE            BIT(4)
#define UNICAM_CLAC_MASK        GENMASK(8, 5)
#define UNICAM_CLSTE            BIT(29)

/* UNICAM_CLT Register */
#define UNICAM_CLT1_MASK        GENMASK(7, 0)
#define UNICAM_CLT2_MASK        GENMASK(15, 8)

/* UNICAM_DATn Registers */
#define UNICAM_DLE              BIT(0)
#define UNICAM_DLPD             BIT(1)
#define UNICAM_DLLPE            BIT(2)
#define UNICAM_DLHSE            BIT(3)
#define UNICAM_DLTRE            BIT(4)
#define UNICAM_DLSM             BIT(5)
#define UNICAM_DLFO             BIT(28)
#define UNICAM_DLSTE            BIT(29)

#define UNICAM_DAT_MASK_ALL     (UNICAM_DLSTE | UNICAM_DLFO)

/* UNICAM_DLT Register */
#define UNICAM_DLT1_MASK        GENMASK(7, 0)
#define UNICAM_DLT2_MASK        GENMASK(15, 8)
#define UNICAM_DLT3_MASK        GENMASK(23, 16)

/* UNICAM_ICTL Register */
#define UNICAM_FSIE             BIT(0)
#define UNICAM_FEIE             BIT(1)
#define UNICAM_IBOB             BIT(2)
#define UNICAM_FCM              BIT(3)
#define UNICAM_TFC              BIT(4)
#define UNICAM_LIP_MASK         GENMASK(6, 5)
#define UNICAM_LCIE_MASK        GENMASK(28, 16)

/* UNICAM_IDI0/1 Register */
#define UNICAM_ID0_MASK         GENMASK(7, 0)
#define UNICAM_ID1_MASK         GENMASK(15, 8)
#define UNICAM_ID2_MASK         GENMASK(23, 16)
#define UNICAM_ID3_MASK         GENMASK(31, 24)

/* UNICAM_ISTA Register */
#define UNICAM_FSI              BIT(0)
#define UNICAM_FEI              BIT(1)
#define UNICAM_LCI              BIT(2)

#define UNICAM_ISTA_MASK_ALL    (UNICAM_FSI | UNICAM_FEI | UNICAM_LCI)

/* UNICAM_IPIPE Register */
#define UNICAM_PUM_MASK         GENMASK(2, 0)
/* Unpacking modes */
#define UNICAM_PUM_NONE         0
#define UNICAM_PUM_UNPACK6      1
#define UNICAM_PUM_UNPACK7      2
#define UNICAM_PUM_UNPACK8      3
#define UNICAM_PUM_UNPACK10     4
#define UNICAM_PUM_UNPACK12     5
#define UNICAM_PUM_UNPACK14     6
#define UNICAM_PUM_UNPACK16     7
#define UNICAM_DDM_MASK         GENMASK(6, 3)
#define UNICAM_PPM_MASK         GENMASK(9, 7)
/* Packing modes */
#define UNICAM_PPM_NONE         0
#define UNICAM_PPM_PACK8        1
#define UNICAM_PPM_PACK10       2
#define UNICAM_PPM_PACK12       3
#define UNICAM_PPM_PACK14       4
#define UNICAM_PPM_PACK16       5
#define UNICAM_DEM_MASK         GENMASK(11, 10)
#define UNICAM_DEBL_MASK        GENMASK(14, 12)
#define UNICAM_ICM_MASK         GENMASK(16, 15)
#define UNICAM_IDM_MASK         GENMASK(17, 17)

/* UNICAM_ICC Register */
#define UNICAM_ICFL_MASK        GENMASK(4, 0)
#define UNICAM_ICFH_MASK        GENMASK(9, 5)
#define UNICAM_ICST_MASK        GENMASK(12, 10)
#define UNICAM_ICLT_MASK        GENMASK(15, 13)
#define UNICAM_ICLL_MASK        GENMASK(31, 16)

/* UNICAM_DCS Register */
#define UNICAM_DIE              BIT(0)
#define UNICAM_DIM              BIT(1)
#define UNICAM_DBOB             BIT(3)
#define UNICAM_FDE              BIT(4)
#define UNICAM_LDP              BIT(5)
#define UNICAM_EDL_MASK         GENMASK(15, 8)

/* UNICAM_DBCTL Register */
#define UNICAM_DBEN             BIT(0)
#define UNICAM_BUF0_IE          BIT(1)
#define UNICAM_BUF1_IE          BIT(2)

/* UNICAM_CMP[0,1] register */
#define UNICAM_PCE              BIT(31)
#define UNICAM_GI               BIT(9)
#define UNICAM_CPH              BIT(8)
#define UNICAM_PCVC_MASK        GENMASK(7, 6)
#define UNICAM_PCDT_MASK        GENMASK(5, 0)

/* UNICAM_MISC register */
#define UNICAM_FL0              BIT(6)
#define UNICAM_FL1              BIT(9)

#endif