/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Copyright (c) 2024 Hisilicon Limited. */ #ifndef DP_KAPI_H #define DP_KAPI_H #include <linux/types.h> #include <linux/delay.h> #include <drm/drm_device.h> #include <drm/drm_encoder.h> #include <drm/drm_connector.h> #include <drm/drm_print.h> #include <drm/display/drm_dp_helper.h> struct hibmc_dp_dev; enum hibmc_hpd_status { HIBMC_HPD_OUT, HIBMC_HPD_IN, }; enum hibmc_dp_cbar_pattern { CBAR_COLOR_BAR, CBAR_WHITE, CBAR_RED, CBAR_ORANGE, CBAR_YELLOW, CBAR_GREEN, CBAR_CYAN, CBAR_BLUE, CBAR_PURPLE, CBAR_BLACK, }; struct hibmc_dp_color_raw { enum hibmc_dp_cbar_pattern pattern; u32 r_value; u32 g_value; u32 b_value; }; struct hibmc_dp_cbar_cfg { u8 enable; u8 self_timing; u8 dynamic_rate; /* 0:static, 1-255(frame):dynamic */ enum hibmc_dp_cbar_pattern pattern; }; struct hibmc_dp { struct hibmc_dp_dev *dp_dev; struct drm_device *drm_dev; struct drm_encoder encoder; struct drm_connector connector; void __iomem *mmio; struct drm_dp_aux aux; struct hibmc_dp_cbar_cfg cfg; u32 irq_status; }; int hibmc_dp_hw_init(struct hibmc_dp *dp); int hibmc_dp_mode_set(struct hibmc_dp *dp, struct drm_display_mode *mode); void hibmc_dp_display_en(struct hibmc_dp *dp, bool enable); void hibmc_dp_set_cbar(struct hibmc_dp *dp, const struct hibmc_dp_cbar_cfg *cfg); void hibmc_dp_reset_link(struct hibmc_dp *dp); void hibmc_dp_hpd_cfg(struct hibmc_dp *dp); void hibmc_dp_enable_int(struct hibmc_dp *dp); void hibmc_dp_disable_int(struct hibmc_dp *dp); bool hibmc_dp_check_hpd_status(struct hibmc_dp *dp, int exp_status); u8 hibmc_dp_get_link_rate(struct hibmc_dp *dp); u8 hibmc_dp_get_lanes(struct hibmc_dp *dp); #endif