/* SPDX-License-Identifier: MIT */ /* * Copyright © 2022 Intel Corporation */ #ifndef __INTEL_BACKLIGHT_REGS_H__ #define __INTEL_BACKLIGHT_REGS_H__ #include "intel_display_reg_defs.h" #define _VLV_BLC_PWM_CTL2_A (VLV_DISPLAY_BASE + 0x61250) #define _VLV_BLC_PWM_CTL2_B (VLV_DISPLAY_BASE + 0x61350) #define VLV_BLC_PWM_CTL2(pipe) _MMIO_PIPE(pipe, _VLV_BLC_PWM_CTL2_A, _VLV_BLC_PWM_CTL2_B) #define _VLV_BLC_PWM_CTL_A (VLV_DISPLAY_BASE + 0x61254) #define _VLV_BLC_PWM_CTL_B (VLV_DISPLAY_BASE + 0x61354) #define VLV_BLC_PWM_CTL(pipe) _MMIO_PIPE(pipe, _VLV_BLC_PWM_CTL_A, _VLV_BLC_PWM_CTL_B) #define _VLV_BLC_HIST_CTL_A (VLV_DISPLAY_BASE + 0x61260) #define _VLV_BLC_HIST_CTL_B (VLV_DISPLAY_BASE + 0x61360) #define VLV_BLC_HIST_CTL(pipe) _MMIO_PIPE(pipe, _VLV_BLC_HIST_CTL_A, _VLV_BLC_HIST_CTL_B) /* Backlight control */ #define BLC_PWM_CTL2 _MMIO(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_TRANSCODER_A BLM_PIPE_A /* hsw */ #define BLM_TRANSCODER_B BLM_PIPE_B #define BLM_TRANSCODER_C BLM_PIPE_C #define BLM_TRANSCODER_EDP (3 << 29) #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 _MMIO(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 _MMIO(0x61260) #define BLM_HISTOGRAM_ENABLE (1 << 31) /* 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 _MMIO(0x48250) #define BLC_PWM_CPU_CTL _MMIO(0x48254) #define HSW_BLC_PWM2_CTL _MMIO(0x48350) /* 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 _MMIO(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 _MMIO(0xc8254) /* BXT backlight register definition. */ #define _BXT_BLC_PWM_CTL1 0xC8250 #define BXT_BLC_PWM_ENABLE (1 << 31) #define BXT_BLC_PWM_POLARITY (1 << 29) #define _BXT_BLC_PWM_FREQ1 0xC8254 #define _BXT_BLC_PWM_DUTY1 0xC8258 #define _BXT_BLC_PWM_CTL2 0xC8350 #define _BXT_BLC_PWM_FREQ2 0xC8354 #define _BXT_BLC_PWM_DUTY2 0xC8358 #define BXT_BLC_PWM_CTL(controller) _MMIO_PIPE(controller, \ _BXT_BLC_PWM_CTL1, _BXT_BLC_PWM_CTL2) #define BXT_BLC_PWM_FREQ(controller) _MMIO_PIPE(controller, \ _BXT_BLC_PWM_FREQ1, _BXT_BLC_PWM_FREQ2) #define BXT_BLC_PWM_DUTY(controller) _MMIO_PIPE(controller, \ _BXT_BLC_PWM_DUTY1, _BXT_BLC_PWM_DUTY2) /* Utility pin */ #define UTIL_PIN_CTL _MMIO(0x48400) #define UTIL_PIN_ENABLE (1 << 31) #define UTIL_PIN_PIPE_MASK (3 << 29) #define UTIL_PIN_PIPE(x) ((x) << 29) #define UTIL_PIN_MODE_MASK (0xf << 24) #define UTIL_PIN_MODE_DATA (0 << 24) #define UTIL_PIN_MODE_PWM (1 << 24) #define UTIL_PIN_MODE_VBLANK (4 << 24) #define UTIL_PIN_MODE_VSYNC (5 << 24) #define UTIL_PIN_MODE_EYE_LEVEL (8 << 24) #define UTIL_PIN_OUTPUT_DATA (1 << 23) #define UTIL_PIN_POLARITY (1 << 22) #define UTIL_PIN_DIRECTION_INPUT (1 << 19) #define UTIL_PIN_INPUT_DATA (1 << 16) #endif /* __INTEL_BACKLIGHT_REGS_H__ */