/* SPDX-License-Identifier: BSD-3-Clause */
/*
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 */

#ifndef _I915_REG_H_
#define _I915_REG_H_

/* Hotplug control (945+ only) */
#define PORT_HOTPLUG_EN         0x61110
#define   HDMIB_HOTPLUG_INT_EN                  (1 << 29)
#define   DPB_HOTPLUG_INT_EN                    (1 << 29)
#define   HDMIC_HOTPLUG_INT_EN                  (1 << 28)
#define   DPC_HOTPLUG_INT_EN                    (1 << 28)
#define   HDMID_HOTPLUG_INT_EN                  (1 << 27)
#define   DPD_HOTPLUG_INT_EN                    (1 << 27)
#define   SDVOB_HOTPLUG_INT_EN                  (1 << 26)
#define   SDVOC_HOTPLUG_INT_EN                  (1 << 25)
#define   TV_HOTPLUG_INT_EN                     (1 << 18)
#define   CRT_HOTPLUG_INT_EN                    (1 << 9)
#define   CRT_HOTPLUG_FORCE_DETECT              (1 << 3)
#define CRT_HOTPLUG_ACTIVATION_PERIOD_32        (0 << 8)
/* must use period 64 on GM45 according to docs */
#define CRT_HOTPLUG_ACTIVATION_PERIOD_64        (1 << 8)
#define CRT_HOTPLUG_DAC_ON_TIME_2M              (0 << 7)
#define CRT_HOTPLUG_DAC_ON_TIME_4M              (1 << 7)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_40          (0 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_50          (1 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_60          (2 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_70          (3 << 5)
#define CRT_HOTPLUG_VOLTAGE_COMPARE_MASK        (3 << 5)
#define CRT_HOTPLUG_DETECT_DELAY_1G             (0 << 4)
#define CRT_HOTPLUG_DETECT_DELAY_2G             (1 << 4)
#define CRT_HOTPLUG_DETECT_VOLTAGE_325MV        (0 << 2)
#define CRT_HOTPLUG_DETECT_VOLTAGE_475MV        (1 << 2)

/* Backlight control */
#define BLC_PWM_CTL2            0x61250 /* 965+ only */
#define   BLM_PWM_ENABLE                (1 << 31)
#define   BLM_COMBINATION_MODE          (1 << 30) /* gen4 only */
#define   BLM_PIPE_SELECT               (1 << 29)
#define   BLM_PIPE_SELECT_IVB           (3 << 29)
#define   BLM_PIPE_A                    (0 << 29)
#define   BLM_PIPE_B                    (1 << 29)
#define   BLM_PIPE_C                    (2 << 29) /* ivb + */
#define   BLM_PIPE(pipe)                ((pipe) << 29)
#define   BLM_POLARITY_I965             (1 << 28) /* gen4 only */
#define   BLM_PHASE_IN_INTERUPT_STATUS  (1 << 26)
#define   BLM_PHASE_IN_ENABLE           (1 << 25)
#define   BLM_PHASE_IN_INTERUPT_ENABL   (1 << 24)
#define   BLM_PHASE_IN_TIME_BASE_SHIFT  (16)
#define   BLM_PHASE_IN_TIME_BASE_MASK   (0xff << 16)
#define   BLM_PHASE_IN_COUNT_SHIFT      (8)
#define   BLM_PHASE_IN_COUNT_MASK       (0xff << 8)
#define   BLM_PHASE_IN_INCR_SHIFT       (0)
#define   BLM_PHASE_IN_INCR_MASK        (0xff << 0)
#define BLC_PWM_CTL             0x61254
/*
 * This is the most significant 15 bits of the number of backlight cycles in a
 * complete cycle of the modulated backlight control.
 *
 * The actual value is this field multiplied by two.
 */
#define   BACKLIGHT_MODULATION_FREQ_SHIFT       (17)
#define   BACKLIGHT_MODULATION_FREQ_MASK        (0x7fff << 17)
#define   BLM_LEGACY_MODE                       (1 << 16) /* gen2 only */
/*
 * This is the number of cycles out of the backlight modulation cycle for which
 * the backlight is on.
 *
 * This field must be no greater than the number of cycles in the complete
 * backlight modulation cycle.
 */
#define   BACKLIGHT_DUTY_CYCLE_SHIFT            (0)
#define   BACKLIGHT_DUTY_CYCLE_MASK             (0xffff)
#define   BACKLIGHT_DUTY_CYCLE_MASK_PNV         (0xfffe)
#define   BLM_POLARITY_PNV                      (1 << 0) /* pnv only */

#define BLC_HIST_CTL            0x61260

/*
 * New registers for PCH-split platforms. Safe where new bits show up, the
 * register layout machtes with gen4 BLC_PWM_CTL[12]
 */
#define BLC_PWM_CPU_CTL2        0x48250
#define  BLC_PWM2_ENABLE        (1<<31)
#define BLC_PWM_CPU_CTL         0x48254

#define BLM_HIST_CTL                    0x48260
#define  ENH_HIST_ENABLE                (1<<31)
#define  ENH_MODIF_TBL_ENABLE           (1<<30)
#define  ENH_PIPE_A_SELECT              (0<<29)
#define  ENH_PIPE_B_SELECT              (1<<29)
#define  ENH_PIPE(pipe) _PIPE(pipe, ENH_PIPE_A_SELECT, ENH_PIPE_B_SELECT)
#define  HIST_MODE_YUV                  (0<<24)
#define  HIST_MODE_HSV                  (1<<24)
#define  ENH_MODE_DIRECT                (0<<13)
#define  ENH_MODE_ADDITIVE              (1<<13)
#define  ENH_MODE_MULTIPLICATIVE        (2<<13)
#define  BIN_REGISTER_SET               (1<<11)
#define  ENH_NUM_BINS                   32

#define BLM_HIST_ENH                    0x48264

#define BLM_HIST_GUARD_BAND             0x48268
#define  BLM_HIST_INTR_ENABLE           (1<<31)
#define  BLM_HIST_EVENT_STATUS          (1<<30)
#define  BLM_HIST_INTR_DELAY_MASK       (0xFF<<22)
#define  BLM_HIST_INTR_DELAY_SHIFT      22

/*
 * PCH CTL1 is totally different, all but the below bits are reserved. CTL2 is
 * like the normal CTL from gen4 and earlier. Hooray for confusing naming.
 */
#define BLC_PWM_PCH_CTL1        0xc8250
#define   BLM_PCH_PWM_ENABLE                    (1 << 31)
#define   BLM_PCH_OVERRIDE_ENABLE               (1 << 30)
#define   BLM_PCH_POLARITY                      (1 << 29)
#define BLC_PWM_PCH_CTL2        0xc8254

/* digital port hotplug */
#define PCH_PORT_HOTPLUG        0xc4030         /* SHOTPLUG_CTL */
#define PORTD_HOTPLUG_ENABLE            (1 << 20)
#define PORTD_PULSE_DURATION_2ms        (0)
#define PORTD_PULSE_DURATION_4_5ms      (1 << 18)
#define PORTD_PULSE_DURATION_6ms        (2 << 18)
#define PORTD_PULSE_DURATION_100ms      (3 << 18)
#define PORTD_PULSE_DURATION_MASK       (3 << 18)
#define PORTD_HOTPLUG_NO_DETECT         (0)
#define PORTD_HOTPLUG_SHORT_DETECT      (1 << 16)
#define PORTD_HOTPLUG_LONG_DETECT       (1 << 17)
#define PORTC_HOTPLUG_ENABLE            (1 << 12)
#define PORTC_PULSE_DURATION_2ms        (0)
#define PORTC_PULSE_DURATION_4_5ms      (1 << 10)
#define PORTC_PULSE_DURATION_6ms        (2 << 10)
#define PORTC_PULSE_DURATION_100ms      (3 << 10)
#define PORTC_PULSE_DURATION_MASK       (3 << 10)
#define PORTC_HOTPLUG_NO_DETECT         (0)
#define PORTC_HOTPLUG_SHORT_DETECT      (1 << 8)
#define PORTC_HOTPLUG_LONG_DETECT       (1 << 9)
#define PORTB_HOTPLUG_ENABLE            (1 << 4)
#define PORTB_PULSE_DURATION_2ms        (0)
#define PORTB_PULSE_DURATION_4_5ms      (1 << 2)
#define PORTB_PULSE_DURATION_6ms        (2 << 2)
#define PORTB_PULSE_DURATION_100ms      (3 << 2)
#define PORTB_PULSE_DURATION_MASK       (3 << 2)
#define PORTB_HOTPLUG_NO_DETECT         (0)
#define PORTB_HOTPLUG_SHORT_DETECT      (1 << 0)
#define PORTB_HOTPLUG_LONG_DETECT       (1 << 1)

#define PCH_GPIOA               0xc5010
#define PCH_GPIOB               0xc5014
#define PCH_GPIOC               0xc5018
#define PCH_GPIOD               0xc501c
#define PCH_GPIOE               0xc5020
#define PCH_GPIOF               0xc5024

#define PCH_GMBUS0              0xc5100
#define PCH_GMBUS1              0xc5104
#define PCH_GMBUS2              0xc5108
#define PCH_GMBUS3              0xc510c
#define PCH_GMBUS4              0xc5110
#define PCH_GMBUS5              0xc5120

#define _PCH_DPLL_A              0xc6014
#define _PCH_DPLL_B              0xc6018
#define _PCH_DPLL(pll) (pll == 0 ? _PCH_DPLL_A : _PCH_DPLL_B)

#define _PCH_FPA0                0xc6040
#define  FP_CB_TUNE             (0x3<<22)
#define _PCH_FPA1                0xc6044
#define _PCH_FPB0                0xc6048
#define _PCH_FPB1                0xc604c
#define _PCH_FP0(pll) (pll == 0 ? _PCH_FPA0 : _PCH_FPB0)
#define _PCH_FP1(pll) (pll == 0 ? _PCH_FPA1 : _PCH_FPB1)

#define PCH_DPLL_TEST           0xc606c

#define PCH_DREF_CONTROL        0xC6200
#define  DREF_CONTROL_MASK      0x7fc3
#define  DREF_CPU_SOURCE_OUTPUT_DISABLE         (0<<13)
#define  DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD      (2<<13)
#define  DREF_CPU_SOURCE_OUTPUT_NONSPREAD       (3<<13)
#define  DREF_CPU_SOURCE_OUTPUT_MASK            (3<<13)
#define  DREF_SSC_SOURCE_DISABLE                (0<<11)
#define  DREF_SSC_SOURCE_ENABLE                 (2<<11)
#define  DREF_SSC_SOURCE_MASK                   (3<<11)
#define  DREF_NONSPREAD_SOURCE_DISABLE          (0<<9)
#define  DREF_NONSPREAD_CK505_ENABLE            (1<<9)
#define  DREF_NONSPREAD_SOURCE_ENABLE           (2<<9)
#define  DREF_NONSPREAD_SOURCE_MASK             (3<<9)
#define  DREF_SUPERSPREAD_SOURCE_DISABLE        (0<<7)
#define  DREF_SUPERSPREAD_SOURCE_ENABLE         (2<<7)
#define  DREF_SUPERSPREAD_SOURCE_MASK           (3<<7)
#define  DREF_SSC4_DOWNSPREAD                   (0<<6)
#define  DREF_SSC4_CENTERSPREAD                 (1<<6)
#define  DREF_SSC1_DISABLE                      (0<<1)
#define  DREF_SSC1_ENABLE                       (1<<1)
#define  DREF_SSC4_DISABLE                      (0)
#define  DREF_SSC4_ENABLE                       (1)

#define PCH_RAWCLK_FREQ         0xc6204
#define  FDL_TP1_TIMER_SHIFT    12
#define  FDL_TP1_TIMER_MASK     (3<<12)
#define  FDL_TP2_TIMER_SHIFT    10
#define  FDL_TP2_TIMER_MASK     (3<<10)
#define  RAWCLK_FREQ_MASK       0x3ff

#define PCH_DPLL_TMR_CFG        0xc6208

#define PCH_SSC4_PARMS          0xc6210
#define PCH_SSC4_AUX_PARMS      0xc6214

#define PCH_DPLL_SEL            0xc7000
#define  TRANSA_DPLL_ENABLE     (1<<3)
#define  TRANSA_DPLLB_SEL       (1<<0)
#define  TRANSA_DPLLA_SEL       0
#define  TRANSB_DPLL_ENABLE     (1<<7)
#define  TRANSB_DPLLB_SEL       (1<<4)
#define  TRANSB_DPLLA_SEL       (0)
#define  TRANSC_DPLL_ENABLE     (1<<11)
#define  TRANSC_DPLLB_SEL       (1<<8)
#define  TRANSC_DPLLA_SEL       (0)

/* transcoder */

#define _TRANS_HTOTAL_A          0xe0000
#define  TRANS_HTOTAL_SHIFT     16
#define  TRANS_HACTIVE_SHIFT    0
#define _TRANS_HBLANK_A          0xe0004
#define  TRANS_HBLANK_END_SHIFT 16
#define  TRANS_HBLANK_START_SHIFT 0
#define _TRANS_HSYNC_A           0xe0008
#define  TRANS_HSYNC_END_SHIFT  16
#define  TRANS_HSYNC_START_SHIFT 0
#define _TRANS_VTOTAL_A          0xe000c
#define  TRANS_VTOTAL_SHIFT     16
#define  TRANS_VACTIVE_SHIFT    0
#define _TRANS_VBLANK_A          0xe0010
#define  TRANS_VBLANK_END_SHIFT 16
#define  TRANS_VBLANK_START_SHIFT 0
#define _TRANS_VSYNC_A           0xe0014
#define  TRANS_VSYNC_END_SHIFT  16
#define  TRANS_VSYNC_START_SHIFT 0
#define _TRANS_VSYNCSHIFT_A     0xe0028

#define _TRANSA_DATA_M1          0xe0030
#define _TRANSA_DATA_N1          0xe0034
#define _TRANSA_DATA_M2          0xe0038
#define _TRANSA_DATA_N2          0xe003c
#define _TRANSA_DP_LINK_M1       0xe0040
#define _TRANSA_DP_LINK_N1       0xe0044
#define _TRANSA_DP_LINK_M2       0xe0048
#define _TRANSA_DP_LINK_N2       0xe004c

/* Per-transcoder DIP controls */

#define _VIDEO_DIP_CTL_A         0xe0200
#define _VIDEO_DIP_DATA_A        0xe0208
#define _VIDEO_DIP_GCP_A         0xe0210

#define _VIDEO_DIP_CTL_B         0xe1200
#define _VIDEO_DIP_DATA_B        0xe1208
#define _VIDEO_DIP_GCP_B         0xe1210

#define TVIDEO_DIP_CTL(pipe) _PIPE(pipe, _VIDEO_DIP_CTL_A, _VIDEO_DIP_CTL_B)
#define TVIDEO_DIP_DATA(pipe) _PIPE(pipe, _VIDEO_DIP_DATA_A, _VIDEO_DIP_DATA_B)
#define TVIDEO_DIP_GCP(pipe) _PIPE(pipe, _VIDEO_DIP_GCP_A, _VIDEO_DIP_GCP_B)

#define VLV_VIDEO_DIP_CTL_A             0x60200
#define VLV_VIDEO_DIP_DATA_A            0x60208
#define VLV_VIDEO_DIP_GDCP_PAYLOAD_A    0x60210

#define VLV_VIDEO_DIP_CTL_B             0x61170
#define VLV_VIDEO_DIP_DATA_B            0x61174
#define VLV_VIDEO_DIP_GDCP_PAYLOAD_B    0x61178

#define VLV_TVIDEO_DIP_CTL(pipe) \
         _PIPE(pipe, VLV_VIDEO_DIP_CTL_A, VLV_VIDEO_DIP_CTL_B)
#define VLV_TVIDEO_DIP_DATA(pipe) \
         _PIPE(pipe, VLV_VIDEO_DIP_DATA_A, VLV_VIDEO_DIP_DATA_B)
#define VLV_TVIDEO_DIP_GCP(pipe) \
        _PIPE(pipe, VLV_VIDEO_DIP_GDCP_PAYLOAD_A, VLV_VIDEO_DIP_GDCP_PAYLOAD_B)

/* vlv has 2 sets of panel control regs. */
#define PIPEA_PP_STATUS         0x61200
#define PIPEA_PP_CONTROL        0x61204
#define PIPEA_PP_ON_DELAYS      0x61208
#define PIPEA_PP_OFF_DELAYS     0x6120c
#define PIPEA_PP_DIVISOR        0x61210

#define PIPEB_PP_STATUS         0x61300
#define PIPEB_PP_CONTROL        0x61304
#define PIPEB_PP_ON_DELAYS      0x61308
#define PIPEB_PP_OFF_DELAYS     0x6130c
#define PIPEB_PP_DIVISOR        0x61310

#define PCH_PP_STATUS           0xc7200
#define PCH_PP_CONTROL          0xc7204
#define  PANEL_UNLOCK_REGS      (0xabcd << 16)
#define  PANEL_UNLOCK_MASK      (0xffff << 16)
#define  EDP_FORCE_VDD          (1 << 3)
#define  EDP_BLC_ENABLE         (1 << 2)
#define  PANEL_POWER_RESET      (1 << 1)
#define  PANEL_POWER_OFF        (0 << 0)
#define  PANEL_POWER_ON         (1 << 0)
#define PCH_PP_ON_DELAYS        0xc7208
#define  PANEL_PORT_SELECT_MASK (3 << 30)
#define  PANEL_PORT_SELECT_LVDS (0 << 30)
#define  PANEL_PORT_SELECT_DPA  (1 << 30)
#define  EDP_PANEL              (1 << 30)
#define  PANEL_PORT_SELECT_DPC  (2 << 30)
#define  PANEL_PORT_SELECT_DPD  (3 << 30)
#define  PANEL_POWER_UP_DELAY_MASK      (0x1fff0000)
#define  PANEL_POWER_UP_DELAY_SHIFT     16
#define  PANEL_LIGHT_ON_DELAY_MASK      (0x1fff)
#define  PANEL_LIGHT_ON_DELAY_SHIFT     0

#define PCH_PP_OFF_DELAYS       0xc720c
#define  PANEL_POWER_PORT_SELECT_MASK   (0x3 << 30)
#define  PANEL_POWER_PORT_LVDS          (0 << 30)
#define  PANEL_POWER_PORT_DP_A          (1 << 30)
#define  PANEL_POWER_PORT_DP_C          (2 << 30)
#define  PANEL_POWER_PORT_DP_D          (3 << 30)
#define  PANEL_POWER_DOWN_DELAY_MASK    (0x1fff0000)
#define  PANEL_POWER_DOWN_DELAY_SHIFT   16
#define  PANEL_LIGHT_OFF_DELAY_MASK     (0x1fff)
#define  PANEL_LIGHT_OFF_DELAY_SHIFT    0

#define PCH_PP_DIVISOR          0xc7210
#define  PP_REFERENCE_DIVIDER_MASK      (0xffffff00)
#define  PP_REFERENCE_DIVIDER_SHIFT     8
#define  PANEL_POWER_CYCLE_DELAY_MASK   (0x1f)
#define  PANEL_POWER_CYCLE_DELAY_SHIFT  0

#define PCH_DP_B                0xe4100
#define PCH_DPB_AUX_CH_CTL      0xe4110
#define PCH_DPB_AUX_CH_DATA1    0xe4114
#define PCH_DPB_AUX_CH_DATA2    0xe4118
#define PCH_DPB_AUX_CH_DATA3    0xe411c
#define PCH_DPB_AUX_CH_DATA4    0xe4120
#define PCH_DPB_AUX_CH_DATA5    0xe4124

#define PCH_DP_C                0xe4200
#define PCH_DPC_AUX_CH_CTL      0xe4210
#define PCH_DPC_AUX_CH_DATA1    0xe4214
#define PCH_DPC_AUX_CH_DATA2    0xe4218
#define PCH_DPC_AUX_CH_DATA3    0xe421c
#define PCH_DPC_AUX_CH_DATA4    0xe4220
#define PCH_DPC_AUX_CH_DATA5    0xe4224

#define PCH_DP_D                0xe4300
#define PCH_DPD_AUX_CH_CTL      0xe4310
#define PCH_DPD_AUX_CH_DATA1    0xe4314
#define PCH_DPD_AUX_CH_DATA2    0xe4318
#define PCH_DPD_AUX_CH_DATA3    0xe431c
#define PCH_DPD_AUX_CH_DATA4    0xe4320
#define PCH_DPD_AUX_CH_DATA5    0xe4324

#endif /* _I915_REG_H_ */