OpenCloudOS-Kernel/drivers/gpu/drm/rcar-du/rcar_du_regs.h

559 lines
16 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* rcar_du_regs.h -- R-Car Display Unit Registers Definitions
*
* Copyright (C) 2013-2015 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*/
#ifndef __RCAR_DU_REGS_H__
#define __RCAR_DU_REGS_H__
#define DU0_REG_OFFSET 0x00000
#define DU1_REG_OFFSET 0x30000
#define DU2_REG_OFFSET 0x40000
#define DU3_REG_OFFSET 0x70000
/* -----------------------------------------------------------------------------
* Display Control Registers
*/
#define DSYSR 0x00000 /* display 1 */
#define DSYSR_ILTS (1 << 29)
#define DSYSR_DSEC (1 << 20)
#define DSYSR_IUPD (1 << 16)
#define DSYSR_DRES (1 << 9)
#define DSYSR_DEN (1 << 8)
#define DSYSR_TVM_MASTER (0 << 6)
#define DSYSR_TVM_SWITCH (1 << 6)
#define DSYSR_TVM_TVSYNC (2 << 6)
#define DSYSR_TVM_MASK (3 << 6)
#define DSYSR_SCM_INT_NONE (0 << 4)
#define DSYSR_SCM_INT_SYNC (2 << 4)
#define DSYSR_SCM_INT_VIDEO (3 << 4)
#define DSYSR_SCM_MASK (3 << 4)
#define DSMR 0x00004
#define DSMR_VSPM (1 << 28)
#define DSMR_ODPM (1 << 27)
#define DSMR_DIPM_DISP (0 << 25)
#define DSMR_DIPM_CSYNC (1 << 25)
#define DSMR_DIPM_DE (3 << 25)
#define DSMR_DIPM_MASK (3 << 25)
#define DSMR_CSPM (1 << 24)
#define DSMR_DIL (1 << 19)
#define DSMR_VSL (1 << 18)
#define DSMR_HSL (1 << 17)
#define DSMR_DDIS (1 << 16)
#define DSMR_CDEL (1 << 15)
#define DSMR_CDEM_CDE (0 << 13)
#define DSMR_CDEM_LOW (2 << 13)
#define DSMR_CDEM_HIGH (3 << 13)
#define DSMR_CDEM_MASK (3 << 13)
#define DSMR_CDED (1 << 12)
#define DSMR_ODEV (1 << 8)
#define DSMR_CSY_VH_OR (0 << 6)
#define DSMR_CSY_333 (2 << 6)
#define DSMR_CSY_222 (3 << 6)
#define DSMR_CSY_MASK (3 << 6)
#define DSSR 0x00008
#define DSSR_VC1FB_DSA0 (0 << 30)
#define DSSR_VC1FB_DSA1 (1 << 30)
#define DSSR_VC1FB_DSA2 (2 << 30)
#define DSSR_VC1FB_INIT (3 << 30)
#define DSSR_VC1FB_MASK (3 << 30)
#define DSSR_VC0FB_DSA0 (0 << 28)
#define DSSR_VC0FB_DSA1 (1 << 28)
#define DSSR_VC0FB_DSA2 (2 << 28)
#define DSSR_VC0FB_INIT (3 << 28)
#define DSSR_VC0FB_MASK (3 << 28)
#define DSSR_DFB(n) (1 << ((n)+15))
#define DSSR_TVR (1 << 15)
#define DSSR_FRM (1 << 14)
#define DSSR_VBK (1 << 11)
#define DSSR_RINT (1 << 9)
#define DSSR_HBK (1 << 8)
#define DSSR_ADC(n) (1 << ((n)-1))
#define DSRCR 0x0000c
#define DSRCR_TVCL (1 << 15)
#define DSRCR_FRCL (1 << 14)
#define DSRCR_VBCL (1 << 11)
#define DSRCR_RICL (1 << 9)
#define DSRCR_HBCL (1 << 8)
#define DSRCR_ADCL(n) (1 << ((n)-1))
#define DSRCR_MASK 0x0000cbff
#define DIER 0x00010
#define DIER_TVE (1 << 15)
#define DIER_FRE (1 << 14)
#define DIER_VBE (1 << 11)
#define DIER_RIE (1 << 9)
#define DIER_HBE (1 << 8)
#define DIER_ADCE(n) (1 << ((n)-1))
#define CPCR 0x00014
#define CPCR_CP4CE (1 << 19)
#define CPCR_CP3CE (1 << 18)
#define CPCR_CP2CE (1 << 17)
#define CPCR_CP1CE (1 << 16)
#define DPPR 0x00018
#define DPPR_DPE(n) (1 << ((n)*4-1))
#define DPPR_DPS(n, p) (((p)-1) << DPPR_DPS_SHIFT(n))
#define DPPR_DPS_SHIFT(n) (((n)-1)*4)
#define DPPR_BPP16 (DPPR_DPE(8) | DPPR_DPS(8, 1)) /* plane1 */
#define DPPR_BPP32_P1 (DPPR_DPE(7) | DPPR_DPS(7, 1))
#define DPPR_BPP32_P2 (DPPR_DPE(8) | DPPR_DPS(8, 2))
#define DPPR_BPP32 (DPPR_BPP32_P1 | DPPR_BPP32_P2) /* plane1 & 2 */
#define DEFR 0x00020
#define DEFR_CODE (0x7773 << 16)
#define DEFR_EXSL (1 << 12)
#define DEFR_EXVL (1 << 11)
#define DEFR_EXUP (1 << 5)
#define DEFR_VCUP (1 << 4)
#define DEFR_DEFE (1 << 0)
#define DAPCR 0x00024
#define DAPCR_CODE (0x7773 << 16)
#define DAPCR_AP2E (1 << 4)
#define DAPCR_AP1E (1 << 0)
#define DCPCR 0x00028
#define DCPCR_CODE (0x7773 << 16)
#define DCPCR_CA2B (1 << 13)
#define DCPCR_CD2F (1 << 12)
#define DCPCR_DC2E (1 << 8)
#define DCPCR_CAB (1 << 5)
#define DCPCR_CDF (1 << 4)
#define DCPCR_DCE (1 << 0)
#define DEFR2 0x00034
#define DEFR2_CODE (0x7775 << 16)
#define DEFR2_DEFE2G (1 << 0)
#define DEFR3 0x00038
#define DEFR3_CODE (0x7776 << 16)
#define DEFR3_EVDA (1 << 14)
#define DEFR3_EVDM_1 (1 << 12)
#define DEFR3_EVDM_2 (2 << 12)
#define DEFR3_EVDM_3 (3 << 12)
#define DEFR3_VMSM2_EMA (1 << 6)
#define DEFR3_VMSM1_ENA (1 << 4)
#define DEFR3_DEFE3 (1 << 0)
#define DEFR4 0x0003c
#define DEFR4_CODE (0x7777 << 16)
#define DEFR4_LRUO (1 << 5)
#define DEFR4_SPCE (1 << 4)
#define DVCSR 0x000d0
#define DVCSR_VCnFB2_DSA0(n) (0 << ((n)*2+16))
#define DVCSR_VCnFB2_DSA1(n) (1 << ((n)*2+16))
#define DVCSR_VCnFB2_DSA2(n) (2 << ((n)*2+16))
#define DVCSR_VCnFB2_INIT(n) (3 << ((n)*2+16))
#define DVCSR_VCnFB2_MASK(n) (3 << ((n)*2+16))
#define DVCSR_VCnFB_DSA0(n) (0 << ((n)*2))
#define DVCSR_VCnFB_DSA1(n) (1 << ((n)*2))
#define DVCSR_VCnFB_DSA2(n) (2 << ((n)*2))
#define DVCSR_VCnFB_INIT(n) (3 << ((n)*2))
#define DVCSR_VCnFB_MASK(n) (3 << ((n)*2))
#define DEFR5 0x000e0
#define DEFR5_CODE (0x66 << 24)
#define DEFR5_YCRGB2_DIS (0 << 14)
#define DEFR5_YCRGB2_PRI1 (1 << 14)
#define DEFR5_YCRGB2_PRI2 (2 << 14)
#define DEFR5_YCRGB2_PRI3 (3 << 14)
#define DEFR5_YCRGB2_MASK (3 << 14)
#define DEFR5_YCRGB1_DIS (0 << 12)
#define DEFR5_YCRGB1_PRI1 (1 << 12)
#define DEFR5_YCRGB1_PRI2 (2 << 12)
#define DEFR5_YCRGB1_PRI3 (3 << 12)
#define DEFR5_YCRGB1_MASK (3 << 12)
#define DEFR5_DEFE5 (1 << 0)
#define DDLTR 0x000e4
#define DDLTR_CODE (0x7766 << 16)
#define DDLTR_DLAR2 (1 << 6)
#define DDLTR_DLAY2 (1 << 5)
#define DDLTR_DLAY1 (1 << 1)
#define DEFR6 0x000e8
#define DEFR6_CODE (0x7778 << 16)
#define DEFR6_ODPM12_DSMR (0 << 10)
#define DEFR6_ODPM12_DISP (2 << 10)
#define DEFR6_ODPM12_CDE (3 << 10)
#define DEFR6_ODPM12_MASK (3 << 10)
#define DEFR6_ODPM02_DSMR (0 << 8)
#define DEFR6_ODPM02_DISP (2 << 8)
#define DEFR6_ODPM02_CDE (3 << 8)
#define DEFR6_ODPM02_MASK (3 << 8)
#define DEFR6_TCNE1 (1 << 6)
#define DEFR6_TCNE0 (1 << 4)
#define DEFR6_MLOS1 (1 << 2)
#define DEFR6_DEFAULT (DEFR6_CODE | DEFR6_TCNE1)
#define DEFR7 0x000ec
#define DEFR7_CODE (0x7779 << 16)
#define DEFR7_CMME1 BIT(6)
#define DEFR7_CMME0 BIT(4)
/* -----------------------------------------------------------------------------
* R8A7790-only Control Registers
*/
#define DD1SSR 0x20008
#define DD1SSR_TVR (1 << 15)
#define DD1SSR_FRM (1 << 14)
#define DD1SSR_BUF (1 << 12)
#define DD1SSR_VBK (1 << 11)
#define DD1SSR_RINT (1 << 9)
#define DD1SSR_HBK (1 << 8)
#define DD1SSR_ADC(n) (1 << ((n)-1))
#define DD1SRCR 0x2000c
#define DD1SRCR_TVR (1 << 15)
#define DD1SRCR_FRM (1 << 14)
#define DD1SRCR_BUF (1 << 12)
#define DD1SRCR_VBK (1 << 11)
#define DD1SRCR_RINT (1 << 9)
#define DD1SRCR_HBK (1 << 8)
#define DD1SRCR_ADC(n) (1 << ((n)-1))
#define DD1IER 0x20010
#define DD1IER_TVR (1 << 15)
#define DD1IER_FRM (1 << 14)
#define DD1IER_BUF (1 << 12)
#define DD1IER_VBK (1 << 11)
#define DD1IER_RINT (1 << 9)
#define DD1IER_HBK (1 << 8)
#define DD1IER_ADC(n) (1 << ((n)-1))
#define DEFR8 0x20020
#define DEFR8_CODE (0x7790 << 16)
#define DEFR8_VSCS (1 << 6)
#define DEFR8_DRGBS_DU(n) ((n) << 4)
#define DEFR8_DRGBS_MASK (3 << 4)
#define DEFR8_DEFE8 (1 << 0)
#define DOFLR 0x20024
#define DOFLR_CODE (0x7790 << 16)
#define DOFLR_HSYCFL1 (1 << 13)
#define DOFLR_VSYCFL1 (1 << 12)
#define DOFLR_ODDFL1 (1 << 11)
#define DOFLR_DISPFL1 (1 << 10)
#define DOFLR_CDEFL1 (1 << 9)
#define DOFLR_RGBFL1 (1 << 8)
#define DOFLR_HSYCFL0 (1 << 5)
#define DOFLR_VSYCFL0 (1 << 4)
#define DOFLR_ODDFL0 (1 << 3)
#define DOFLR_DISPFL0 (1 << 2)
#define DOFLR_CDEFL0 (1 << 1)
#define DOFLR_RGBFL0 (1 << 0)
#define DIDSR 0x20028
#define DIDSR_CODE (0x7790 << 16)
#define DIDSR_LDCS_DCLKIN(n) (0 << (8 + (n) * 2))
#define DIDSR_LDCS_DSI(n) (2 << (8 + (n) * 2)) /* V3U only */
#define DIDSR_LDCS_LVDS0(n) (2 << (8 + (n) * 2))
#define DIDSR_LDCS_LVDS1(n) (3 << (8 + (n) * 2))
#define DIDSR_LDCS_MASK(n) (3 << (8 + (n) * 2))
#define DIDSR_PDCS_CLK(n, clk) (clk << ((n) * 2))
#define DIDSR_PDCS_MASK(n) (3 << ((n) * 2))
#define DEFR10 0x20038
#define DEFR10_CODE (0x7795 << 16)
#define DEFR10_VSPF1_RGB (0 << 14)
#define DEFR10_VSPF1_YC (1 << 14)
#define DEFR10_DOCF1_RGB (0 << 12)
#define DEFR10_DOCF1_YC (1 << 12)
#define DEFR10_YCDF0_YCBCR444 (0 << 11)
#define DEFR10_YCDF0_YCBCR422 (1 << 11)
#define DEFR10_VSPF0_RGB (0 << 10)
#define DEFR10_VSPF0_YC (1 << 10)
#define DEFR10_DOCF0_RGB (0 << 8)
#define DEFR10_DOCF0_YC (1 << 8)
#define DEFR10_TSEL_H3_TCON1 (0 << 1) /* DEFR102 register only (DU2/DU3) */
#define DEFR10_DEFE10 (1 << 0)
#define DPLLCR 0x20044
#define DPLLCR_CODE (0x95 << 24)
#define DPLLCR_PLCS1 (1 << 23)
/*
* PLCS0 is bit 21, but H3 ES1.x requires bit 20 to be set as well. As bit 20
* isn't implemented by other SoC in the Gen3 family it can safely be set
* unconditionally.
*/
#define DPLLCR_PLCS0 (3 << 20)
#define DPLLCR_CLKE (1 << 18)
#define DPLLCR_FDPLL(n) ((n) << 12)
#define DPLLCR_N(n) ((n) << 5)
#define DPLLCR_M(n) ((n) << 3)
#define DPLLCR_STBY (1 << 2)
#define DPLLCR_INCS_DOTCLKIN0 (0 << 0)
#define DPLLCR_INCS_DOTCLKIN1 (1 << 1)
#define DPLLC2R 0x20048
#define DPLLC2R_CODE (0x95 << 24)
#define DPLLC2R_SELC (1 << 12)
#define DPLLC2R_M(n) ((n) << 8)
#define DPLLC2R_FDPLL(n) ((n) << 0)
/* -----------------------------------------------------------------------------
* Display Timing Generation Registers
*/
#define HDSR 0x00040
#define HDER 0x00044
#define VDSR 0x00048
#define VDER 0x0004c
#define HCR 0x00050
#define HSWR 0x00054
#define VCR 0x00058
#define VSPR 0x0005c
#define EQWR 0x00060
#define SPWR 0x00064
#define CLAMPSR 0x00070
#define CLAMPWR 0x00074
#define DESR 0x00078
#define DEWR 0x0007c
/* -----------------------------------------------------------------------------
* Display Attribute Registers
*/
#define CP1TR 0x00080
#define CP2TR 0x00084
#define CP3TR 0x00088
#define CP4TR 0x0008c
#define DOOR 0x00090
#define DOOR_RGB(r, g, b) (((r) << 18) | ((g) << 10) | ((b) << 2))
#define CDER 0x00094
#define CDER_RGB(r, g, b) (((r) << 18) | ((g) << 10) | ((b) << 2))
#define BPOR 0x00098
#define BPOR_RGB(r, g, b) (((r) << 18) | ((g) << 10) | ((b) << 2))
#define RINTOFSR 0x0009c
#define DSHPR 0x000c8
#define DSHPR_CODE (0x7776 << 16)
#define DSHPR_PRIH (0xa << 4)
#define DSHPR_PRIL_BPP16 (0x8 << 0)
#define DSHPR_PRIL_BPP32 (0x9 << 0)
/* -----------------------------------------------------------------------------
* Display Plane Registers
*/
#define PLANE_OFF 0x00100
#define PnMR 0x00100 /* plane 1 */
#define PnMR_VISL_VIN0 (0 << 26) /* use Video Input 0 */
#define PnMR_VISL_VIN1 (1 << 26) /* use Video Input 1 */
#define PnMR_VISL_VIN2 (2 << 26) /* use Video Input 2 */
#define PnMR_VISL_VIN3 (3 << 26) /* use Video Input 3 */
#define PnMR_YCDF_YUYV (1 << 20) /* YUYV format */
#define PnMR_TC_R (0 << 17) /* Tranparent color is PnTC1R */
#define PnMR_TC_CP (1 << 17) /* Tranparent color is color palette */
#define PnMR_WAE (1 << 16) /* Wrap around Enable */
#define PnMR_SPIM_TP (0 << 12) /* Transparent Color */
#define PnMR_SPIM_ALP (1 << 12) /* Alpha Blending */
#define PnMR_SPIM_EOR (2 << 12) /* EOR */
#define PnMR_SPIM_TP_OFF (1 << 14) /* No Transparent Color */
#define PnMR_CPSL_CP1 (0 << 8) /* Color Palette selected 1 */
#define PnMR_CPSL_CP2 (1 << 8) /* Color Palette selected 2 */
#define PnMR_CPSL_CP3 (2 << 8) /* Color Palette selected 3 */
#define PnMR_CPSL_CP4 (3 << 8) /* Color Palette selected 4 */
#define PnMR_DC (1 << 7) /* Display Area Change */
#define PnMR_BM_MD (0 << 4) /* Manual Display Change Mode */
#define PnMR_BM_AR (1 << 4) /* Auto Rendering Mode */
#define PnMR_BM_AD (2 << 4) /* Auto Display Change Mode */
#define PnMR_BM_VC (3 << 4) /* Video Capture Mode */
#define PnMR_DDDF_8BPP (0 << 0) /* 8bit */
#define PnMR_DDDF_16BPP (1 << 0) /* 16bit or 32bit */
#define PnMR_DDDF_ARGB (2 << 0) /* ARGB */
#define PnMR_DDDF_YC (3 << 0) /* YC */
#define PnMR_DDDF_MASK (3 << 0)
#define PnMWR 0x00104
#define PnALPHAR 0x00108
#define PnALPHAR_ABIT_1 (0 << 12)
#define PnALPHAR_ABIT_0 (1 << 12)
#define PnALPHAR_ABIT_X (2 << 12)
#define PnDSXR 0x00110
#define PnDSYR 0x00114
#define PnDPXR 0x00118
#define PnDPYR 0x0011c
#define PnDSA0R 0x00120
#define PnDSA1R 0x00124
#define PnDSA2R 0x00128
#define PnDSA_MASK 0xfffffff0
#define PnSPXR 0x00130
#define PnSPYR 0x00134
#define PnWASPR 0x00138
#define PnWAMWR 0x0013c
#define PnBTR 0x00140
#define PnTC1R 0x00144
#define PnTC2R 0x00148
#define PnTC3R 0x0014c
#define PnTC3R_CODE (0x66 << 24)
#define PnMLR 0x00150
#define PnSWAPR 0x00180
#define PnSWAPR_DIGN (1 << 4)
#define PnSWAPR_SPQW (1 << 3)
#define PnSWAPR_SPLW (1 << 2)
#define PnSWAPR_SPWD (1 << 1)
#define PnSWAPR_SPBY (1 << 0)
#define PnDDCR 0x00184
#define PnDDCR_CODE (0x7775 << 16)
#define PnDDCR_LRGB1 (1 << 11)
#define PnDDCR_LRGB0 (1 << 10)
#define PnDDCR2 0x00188
#define PnDDCR2_CODE (0x7776 << 16)
#define PnDDCR2_NV21 (1 << 5)
#define PnDDCR2_Y420 (1 << 4)
#define PnDDCR2_DIVU (1 << 1)
#define PnDDCR2_DIVY (1 << 0)
#define PnDDCR4 0x00190
#define PnDDCR4_CODE (0x7766 << 16)
#define PnDDCR4_VSPS (1 << 13)
#define PnDDCR4_SDFS_RGB (0 << 4)
#define PnDDCR4_SDFS_YC (5 << 4)
#define PnDDCR4_SDFS_MASK (7 << 4)
#define PnDDCR4_EDF_NONE (0 << 0)
#define PnDDCR4_EDF_ARGB8888 (1 << 0)
#define PnDDCR4_EDF_RGB888 (2 << 0)
#define PnDDCR4_EDF_RGB666 (3 << 0)
#define PnDDCR4_EDF_MASK (7 << 0)
#define APnMR 0x0a100
#define APnMR_WAE (1 << 16) /* Wrap around Enable */
#define APnMR_DC (1 << 7) /* Display Area Change */
#define APnMR_BM_MD (0 << 4) /* Manual Display Change Mode */
#define APnMR_BM_AD (2 << 4) /* Auto Display Change Mode */
#define APnMWR 0x0a104
#define APnDSXR 0x0a110
#define APnDSYR 0x0a114
#define APnDPXR 0x0a118
#define APnDPYR 0x0a11c
#define APnDSA0R 0x0a120
#define APnDSA1R 0x0a124
#define APnDSA2R 0x0a128
#define APnSPXR 0x0a130
#define APnSPYR 0x0a134
#define APnWASPR 0x0a138
#define APnWAMWR 0x0a13c
#define APnBTR 0x0a140
#define APnMLR 0x0a150
#define APnSWAPR 0x0a180
/* -----------------------------------------------------------------------------
* Display Capture Registers
*/
#define DCMR 0x0c100
#define DCMWR 0x0c104
#define DCSAR 0x0c120
#define DCMLR 0x0c150
/* -----------------------------------------------------------------------------
* Color Palette Registers
*/
#define CP1_000R 0x01000
#define CP1_255R 0x013fc
#define CP2_000R 0x02000
#define CP2_255R 0x023fc
#define CP3_000R 0x03000
#define CP3_255R 0x033fc
#define CP4_000R 0x04000
#define CP4_255R 0x043fc
/* -----------------------------------------------------------------------------
* External Synchronization Control Registers
*/
#define ESCR02 0x10000
#define ESCR13 0x01000
#define ESCR_DCLKOINV (1 << 25)
#define ESCR_DCLKSEL_DCLKIN (0 << 20)
#define ESCR_DCLKSEL_CLKS (1 << 20)
#define ESCR_DCLKSEL_MASK (1 << 20)
#define ESCR_DCLKDIS (1 << 16)
#define ESCR_SYNCSEL_OFF (0 << 8)
#define ESCR_SYNCSEL_EXVSYNC (2 << 8)
#define ESCR_SYNCSEL_EXHSYNC (3 << 8)
#define ESCR_FRQSEL_MASK (0x3f << 0)
#define OTAR02 0x10004
#define OTAR13 0x01004
/* -----------------------------------------------------------------------------
* Dual Display Output Control Registers
*/
#define DORCR 0x11000
#define DORCR_PG2T (1 << 30)
#define DORCR_DK2S (1 << 28)
#define DORCR_PG2D_DS1 (0 << 24)
#define DORCR_PG2D_DS2 (1 << 24)
#define DORCR_PG2D_FIX0 (2 << 24)
#define DORCR_PG2D_DOOR (3 << 24)
#define DORCR_PG2D_MASK (3 << 24)
#define DORCR_DR1D (1 << 21)
#define DORCR_PG1D_DS1 (0 << 16)
#define DORCR_PG1D_DS2 (1 << 16)
#define DORCR_PG1D_FIX0 (2 << 16)
#define DORCR_PG1D_DOOR (3 << 16)
#define DORCR_PG1D_MASK (3 << 16)
#define DORCR_RGPV (1 << 4)
#define DORCR_DPRS (1 << 0)
#define DPTSR 0x11004
#define DPTSR_PnDK(n) (1 << ((n) + 16))
#define DPTSR_PnTS(n) (1 << (n))
#define DAPTSR 0x11008
#define DAPTSR_APnDK(n) (1 << ((n) + 16))
#define DAPTSR_APnTS(n) (1 << (n))
#define DS1PR 0x11020
#define DS2PR 0x11024
/* -----------------------------------------------------------------------------
* YC-RGB Conversion Coefficient Registers
*/
#define YNCR 0x11080
#define YNOR 0x11084
#define CRNOR 0x11088
#define CBNOR 0x1108c
#define RCRCR 0x11090
#define GCRCR 0x11094
#define GCBCR 0x11098
#define BCBCR 0x1109c
#endif /* __RCAR_DU_REGS_H__ */