root/drivers/gpu/drm/renesas/shmobile/shmob_drm_regs.h
/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * shmob_drm_regs.h  --  SH Mobile DRM registers
 *
 * Copyright (C) 2012 Renesas Electronics Corporation
 *
 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 */

#ifndef __SHMOB_DRM_REGS_H__
#define __SHMOB_DRM_REGS_H__

#include <linux/io.h>
#include <linux/jiffies.h>

#include "shmob_drm_drv.h"

/* Register definitions */
#define LDDCKPAT1R              0x400
#define LDDCKPAT2R              0x404
#define LDDCKR                  0x410
#define LDDCKR_ICKSEL_BUS       (0 << 16)
#define LDDCKR_ICKSEL_MIPI      (1 << 16)
#define LDDCKR_ICKSEL_HDMI      (2 << 16)
#define LDDCKR_ICKSEL_EXT       (3 << 16)
#define LDDCKR_ICKSEL_MASK      (7 << 16)
#define LDDCKR_MOSEL            (1 << 6)
#define LDDCKSTPR               0x414
#define LDDCKSTPR_DCKSTS        (1 << 16)
#define LDDCKSTPR_DCKSTP        (1 << 0)
#define LDMT1R                  0x418
#define LDMT1R_VPOL             (1 << 28)
#define LDMT1R_HPOL             (1 << 27)
#define LDMT1R_DWPOL            (1 << 26)
#define LDMT1R_DIPOL            (1 << 25)
#define LDMT1R_DAPOL            (1 << 24)
#define LDMT1R_HSCNT            (1 << 17)
#define LDMT1R_DWCNT            (1 << 16)
#define LDMT1R_IFM              (1 << 12)
#define LDMT1R_MIFTYP_RGB8      (0x0 << 0)
#define LDMT1R_MIFTYP_RGB9      (0x4 << 0)
#define LDMT1R_MIFTYP_RGB12A    (0x5 << 0)
#define LDMT1R_MIFTYP_RGB12B    (0x6 << 0)
#define LDMT1R_MIFTYP_RGB16     (0x7 << 0)
#define LDMT1R_MIFTYP_RGB18     (0xa << 0)
#define LDMT1R_MIFTYP_RGB24     (0xb << 0)
#define LDMT1R_MIFTYP_YCBCR     (0xf << 0)
#define LDMT1R_MIFTYP_SYS8A     (0x0 << 0)
#define LDMT1R_MIFTYP_SYS8B     (0x1 << 0)
#define LDMT1R_MIFTYP_SYS8C     (0x2 << 0)
#define LDMT1R_MIFTYP_SYS8D     (0x3 << 0)
#define LDMT1R_MIFTYP_SYS9      (0x4 << 0)
#define LDMT1R_MIFTYP_SYS12     (0x5 << 0)
#define LDMT1R_MIFTYP_SYS16A    (0x7 << 0)
#define LDMT1R_MIFTYP_SYS16B    (0x8 << 0)
#define LDMT1R_MIFTYP_SYS16C    (0x9 << 0)
#define LDMT1R_MIFTYP_SYS18     (0xa << 0)
#define LDMT1R_MIFTYP_SYS24     (0xb << 0)
#define LDMT1R_MIFTYP_MASK      (0xf << 0)
#define LDMT2R                  0x41c
#define LDMT2R_CSUP_MASK        (7 << 26)
#define LDMT2R_CSUP_SHIFT       26
#define LDMT2R_RSV              (1 << 25)
#define LDMT2R_VSEL             (1 << 24)
#define LDMT2R_WCSC_MASK        (0xff << 16)
#define LDMT2R_WCSC_SHIFT       16
#define LDMT2R_WCEC_MASK        (0xff << 8)
#define LDMT2R_WCEC_SHIFT       8
#define LDMT2R_WCLW_MASK        (0xff << 0)
#define LDMT2R_WCLW_SHIFT       0
#define LDMT3R                  0x420
#define LDMT3R_RDLC_MASK        (0x3f << 24)
#define LDMT3R_RDLC_SHIFT       24
#define LDMT3R_RCSC_MASK        (0xff << 16)
#define LDMT3R_RCSC_SHIFT       16
#define LDMT3R_RCEC_MASK        (0xff << 8)
#define LDMT3R_RCEC_SHIFT       8
#define LDMT3R_RCLW_MASK        (0xff << 0)
#define LDMT3R_RCLW_SHIFT       0
#define LDDFR                   0x424
#define LDDFR_CF1               (1 << 18)
#define LDDFR_CF0               (1 << 17)
#define LDDFR_CC                (1 << 16)
#define LDDFR_YF_420            (0 << 8)
#define LDDFR_YF_422            (1 << 8)
#define LDDFR_YF_444            (2 << 8)
#define LDDFR_YF_MASK           (3 << 8)
#define LDDFR_PKF_ARGB32        (0x00 << 0)
#define LDDFR_PKF_RGB16         (0x03 << 0)
#define LDDFR_PKF_RGB24         (0x0b << 0)
#define LDDFR_PKF_MASK          (0x1f << 0)
#define LDSM1R                  0x428
#define LDSM1R_OS               (1 << 0)
#define LDSM2R                  0x42c
#define LDSM2R_OSTRG            (1 << 0)
#define LDSA1R                  0x430
#define LDSA2R                  0x434
#define LDMLSR                  0x438
#define LDWBFR                  0x43c
#define LDWBCNTR                0x440
#define LDWBAR                  0x444
#define LDHCNR                  0x448
#define LDHSYNR                 0x44c
#define LDVLNR                  0x450
#define LDVSYNR                 0x454
#define LDHPDR                  0x458
#define LDVPDR                  0x45c
#define LDPMR                   0x460
#define LDPMR_LPS               (3 << 0)
#define LDINTR                  0x468
#define LDINTR_FE               (1 << 10)
#define LDINTR_VSE              (1 << 9)
#define LDINTR_VEE              (1 << 8)
#define LDINTR_FS               (1 << 2)
#define LDINTR_VSS              (1 << 1)
#define LDINTR_VES              (1 << 0)
#define LDINTR_STATUS_MASK      (0xff << 0)
#define LDSR                    0x46c
#define LDSR_MSS                (1 << 10)
#define LDSR_MRS                (1 << 8)
#define LDSR_AS                 (1 << 1)
#define LDCNT1R                 0x470
#define LDCNT1R_DE              (1 << 0)
#define LDCNT2R                 0x474
#define LDCNT2R_BR              (1 << 8)
#define LDCNT2R_MD              (1 << 3)
#define LDCNT2R_SE              (1 << 2)
#define LDCNT2R_ME              (1 << 1)
#define LDCNT2R_DO              (1 << 0)
#define LDRCNTR                 0x478
#define LDRCNTR_SRS             (1 << 17)
#define LDRCNTR_SRC             (1 << 16)
#define LDRCNTR_MRS             (1 << 1)
#define LDRCNTR_MRC             (1 << 0)
#define LDDDSR                  0x47c
#define LDDDSR_LS               (1 << 2)
#define LDDDSR_WS               (1 << 1)
#define LDDDSR_BS               (1 << 0)
#define LDHAJR                  0x4a0

#define LDDWD0R                 0x800
#define LDDWDxR_WDACT           (1 << 28)
#define LDDWDxR_RSW             (1 << 24)
#define LDDRDR                  0x840
#define LDDRDR_RSR              (1 << 24)
#define LDDRDR_DRD_MASK         (0x3ffff << 0)
#define LDDWAR                  0x900
#define LDDWAR_WA               (1 << 0)
#define LDDRAR                  0x904
#define LDDRAR_RA               (1 << 0)

#define LDBCR                   0xb00
#define LDBCR_UPC(n)            (1 << ((n) + 16))
#define LDBCR_UPF(n)            (1 << ((n) + 8))
#define LDBCR_UPD(n)            (1 << ((n) + 0))
#define LDBnBSIFR(n)            (0xb20 + (n) * 0x20 + 0x00)
#define LDBBSIFR_EN             (1 << 31)
#define LDBBSIFR_VS             (1 << 29)
#define LDBBSIFR_BRSEL          (1 << 28)
#define LDBBSIFR_MX             (1 << 27)
#define LDBBSIFR_MY             (1 << 26)
#define LDBBSIFR_CV3            (3 << 24)
#define LDBBSIFR_CV2            (2 << 24)
#define LDBBSIFR_CV1            (1 << 24)
#define LDBBSIFR_CV0            (0 << 24)
#define LDBBSIFR_CV_MASK        (3 << 24)
#define LDBBSIFR_LAY_MASK       (0xff << 16)
#define LDBBSIFR_LAY_SHIFT      16
#define LDBBSIFR_ROP3_MASK      (0xff << 16)
#define LDBBSIFR_ROP3_SHIFT     16
#define LDBBSIFR_AL_PL8         (3 << 14)
#define LDBBSIFR_AL_PL1         (2 << 14)
#define LDBBSIFR_AL_PK          (1 << 14)
#define LDBBSIFR_AL_1           (0 << 14)
#define LDBBSIFR_AL_MASK        (3 << 14)
#define LDBBSIFR_SWPL           (1 << 10)
#define LDBBSIFR_SWPW           (1 << 9)
#define LDBBSIFR_SWPB           (1 << 8)
#define LDBBSIFR_RY             (1 << 7)
#define LDBBSIFR_CHRR_420       (2 << 0)
#define LDBBSIFR_CHRR_422       (1 << 0)
#define LDBBSIFR_CHRR_444       (0 << 0)
#define LDBBSIFR_RPKF_ARGB32    (0x00 << 0)
#define LDBBSIFR_RPKF_RGB16     (0x03 << 0)
#define LDBBSIFR_RPKF_RGB24     (0x0b << 0)
#define LDBBSIFR_RPKF_MASK      (0x1f << 0)
#define LDBnBSSZR(n)            (0xb20 + (n) * 0x20 + 0x04)
#define LDBBSSZR_BVSS_MASK      (0xfff << 16)
#define LDBBSSZR_BVSS_SHIFT     16
#define LDBBSSZR_BHSS_MASK      (0xfff << 0)
#define LDBBSSZR_BHSS_SHIFT     0
#define LDBnBLOCR(n)            (0xb20 + (n) * 0x20 + 0x08)
#define LDBBLOCR_CVLC_MASK      (0xfff << 16)
#define LDBBLOCR_CVLC_SHIFT     16
#define LDBBLOCR_CHLC_MASK      (0xfff << 0)
#define LDBBLOCR_CHLC_SHIFT     0
#define LDBnBSMWR(n)            (0xb20 + (n) * 0x20 + 0x0c)
#define LDBBSMWR_BSMWA_MASK     (0xffff << 16)
#define LDBBSMWR_BSMWA_SHIFT    16
#define LDBBSMWR_BSMW_MASK      (0xffff << 0)
#define LDBBSMWR_BSMW_SHIFT     0
#define LDBnBSAYR(n)            (0xb20 + (n) * 0x20 + 0x10)
#define LDBBSAYR_FG1A_MASK      (0xff << 24)
#define LDBBSAYR_FG1A_SHIFT     24
#define LDBBSAYR_FG1R_MASK      (0xff << 16)
#define LDBBSAYR_FG1R_SHIFT     16
#define LDBBSAYR_FG1G_MASK      (0xff << 8)
#define LDBBSAYR_FG1G_SHIFT     8
#define LDBBSAYR_FG1B_MASK      (0xff << 0)
#define LDBBSAYR_FG1B_SHIFT     0
#define LDBnBSACR(n)            (0xb20 + (n) * 0x20 + 0x14)
#define LDBBSACR_FG2A_MASK      (0xff << 24)
#define LDBBSACR_FG2A_SHIFT     24
#define LDBBSACR_FG2R_MASK      (0xff << 16)
#define LDBBSACR_FG2R_SHIFT     16
#define LDBBSACR_FG2G_MASK      (0xff << 8)
#define LDBBSACR_FG2G_SHIFT     8
#define LDBBSACR_FG2B_MASK      (0xff << 0)
#define LDBBSACR_FG2B_SHIFT     0
#define LDBnBSAAR(n)            (0xb20 + (n) * 0x20 + 0x18)
#define LDBBSAAR_AP_MASK        (0xff << 24)
#define LDBBSAAR_AP_SHIFT       24
#define LDBBSAAR_R_MASK         (0xff << 16)
#define LDBBSAAR_R_SHIFT        16
#define LDBBSAAR_GY_MASK        (0xff << 8)
#define LDBBSAAR_GY_SHIFT       8
#define LDBBSAAR_B_MASK         (0xff << 0)
#define LDBBSAAR_B_SHIFT        0
#define LDBnBPPCR(n)            (0xb20 + (n) * 0x20 + 0x1c)
#define LDBBPPCR_AP_MASK        (0xff << 24)
#define LDBBPPCR_AP_SHIFT       24
#define LDBBPPCR_R_MASK         (0xff << 16)
#define LDBBPPCR_R_SHIFT        16
#define LDBBPPCR_GY_MASK        (0xff << 8)
#define LDBBPPCR_GY_SHIFT       8
#define LDBBPPCR_B_MASK         (0xff << 0)
#define LDBBPPCR_B_SHIFT        0
#define LDBnBBGCL(n)            (0xb10 + (n) * 0x04)
#define LDBBBGCL_BGA_MASK       (0xff << 24)
#define LDBBBGCL_BGA_SHIFT      24
#define LDBBBGCL_BGR_MASK       (0xff << 16)
#define LDBBBGCL_BGR_SHIFT      16
#define LDBBBGCL_BGG_MASK       (0xff << 8)
#define LDBBBGCL_BGG_SHIFT      8
#define LDBBBGCL_BGB_MASK       (0xff << 0)
#define LDBBBGCL_BGB_SHIFT      0

#define LCDC_SIDE_B_OFFSET      0x1000
#define LCDC_MIRROR_OFFSET      0x2000

static inline bool lcdc_is_banked(u32 reg)
{
        switch (reg) {
        case LDMT1R:
        case LDMT2R:
        case LDMT3R:
        case LDDFR:
        case LDSM1R:
        case LDSA1R:
        case LDSA2R:
        case LDMLSR:
        case LDWBFR:
        case LDWBCNTR:
        case LDWBAR:
        case LDHCNR:
        case LDHSYNR:
        case LDVLNR:
        case LDVSYNR:
        case LDHPDR:
        case LDVPDR:
        case LDHAJR:
                return true;
        default:
                return reg >= LDBnBBGCL(0) && reg <= LDBnBPPCR(3);
        }
}

static inline void lcdc_write_mirror(struct shmob_drm_device *sdev, u32 reg,
                                     u32 data)
{
        iowrite32(data, sdev->mmio + reg + LCDC_MIRROR_OFFSET);
}

static inline void lcdc_write(struct shmob_drm_device *sdev, u32 reg, u32 data)
{
        iowrite32(data, sdev->mmio + reg);
        if (lcdc_is_banked(reg))
                iowrite32(data, sdev->mmio + reg + LCDC_SIDE_B_OFFSET);
}

static inline u32 lcdc_read(struct shmob_drm_device *sdev, u32 reg)
{
        return ioread32(sdev->mmio + reg);
}

static inline int lcdc_wait_bit(struct shmob_drm_device *sdev, u32 reg,
                                u32 mask, u32 until)
{
        unsigned long timeout = jiffies + msecs_to_jiffies(5);

        while ((lcdc_read(sdev, reg) & mask) != until) {
                if (time_after(jiffies, timeout))
                        return -ETIMEDOUT;
                cpu_relax();
        }

        return 0;
}

#endif /* __SHMOB_DRM_REGS_H__ */