mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 01:32:46 +07:00
6b6b604215
Add support for eDP functionality found on Tegra124 and later SoCs. Only fast link training is currently supported. Signed-off-by: Thierry Reding <treding@nvidia.com>
306 lines
8.1 KiB
C
306 lines
8.1 KiB
C
/*
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* Copyright (C) 2012 Avionic Design GmbH
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* Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef HOST1X_DRM_H
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#define HOST1X_DRM_H 1
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#include <uapi/drm/tegra_drm.h>
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#include <linux/host1x.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_fixed.h>
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struct reset_control;
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struct tegra_fb {
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struct drm_framebuffer base;
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struct tegra_bo **planes;
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unsigned int num_planes;
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};
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#ifdef CONFIG_DRM_TEGRA_FBDEV
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struct tegra_fbdev {
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struct drm_fb_helper base;
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struct tegra_fb *fb;
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};
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#endif
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struct tegra_drm {
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struct drm_device *drm;
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struct mutex clients_lock;
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struct list_head clients;
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#ifdef CONFIG_DRM_TEGRA_FBDEV
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struct tegra_fbdev *fbdev;
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#endif
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};
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struct tegra_drm_client;
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struct tegra_drm_context {
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struct tegra_drm_client *client;
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struct host1x_channel *channel;
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struct list_head list;
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};
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struct tegra_drm_client_ops {
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int (*open_channel)(struct tegra_drm_client *client,
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struct tegra_drm_context *context);
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void (*close_channel)(struct tegra_drm_context *context);
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int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
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int (*submit)(struct tegra_drm_context *context,
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struct drm_tegra_submit *args, struct drm_device *drm,
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struct drm_file *file);
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};
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int tegra_drm_submit(struct tegra_drm_context *context,
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struct drm_tegra_submit *args, struct drm_device *drm,
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struct drm_file *file);
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struct tegra_drm_client {
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struct host1x_client base;
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struct list_head list;
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const struct tegra_drm_client_ops *ops;
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};
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static inline struct tegra_drm_client *
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host1x_to_drm_client(struct host1x_client *client)
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{
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return container_of(client, struct tegra_drm_client, base);
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}
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extern int tegra_drm_register_client(struct tegra_drm *tegra,
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struct tegra_drm_client *client);
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extern int tegra_drm_unregister_client(struct tegra_drm *tegra,
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struct tegra_drm_client *client);
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extern int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
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extern int tegra_drm_exit(struct tegra_drm *tegra);
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struct tegra_dc_soc_info;
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struct tegra_output;
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struct tegra_dc {
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struct host1x_client client;
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struct device *dev;
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spinlock_t lock;
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struct drm_crtc base;
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int pipe;
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struct clk *clk;
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struct reset_control *rst;
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void __iomem *regs;
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int irq;
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struct tegra_output *rgb;
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struct list_head list;
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struct drm_info_list *debugfs_files;
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struct drm_minor *minor;
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struct dentry *debugfs;
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/* page-flip handling */
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struct drm_pending_vblank_event *event;
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const struct tegra_dc_soc_info *soc;
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};
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static inline struct tegra_dc *
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host1x_client_to_dc(struct host1x_client *client)
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{
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return container_of(client, struct tegra_dc, client);
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}
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static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
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{
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return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
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}
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static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
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unsigned long reg)
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{
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writel(value, dc->regs + (reg << 2));
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}
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static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
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unsigned long reg)
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{
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return readl(dc->regs + (reg << 2));
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}
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struct tegra_dc_window {
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struct {
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unsigned int x;
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unsigned int y;
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unsigned int w;
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unsigned int h;
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} src;
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struct {
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unsigned int x;
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unsigned int y;
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unsigned int w;
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unsigned int h;
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} dst;
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unsigned int bits_per_pixel;
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unsigned int format;
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unsigned int stride[2];
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unsigned long base[3];
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bool bottom_up;
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bool tiled;
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};
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/* from dc.c */
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extern unsigned int tegra_dc_format(uint32_t format);
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extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
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const struct tegra_dc_window *window);
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extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
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extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
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extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc,
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struct drm_file *file);
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struct tegra_output_ops {
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int (*enable)(struct tegra_output *output);
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int (*disable)(struct tegra_output *output);
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int (*setup_clock)(struct tegra_output *output, struct clk *clk,
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unsigned long pclk);
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int (*check_mode)(struct tegra_output *output,
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struct drm_display_mode *mode,
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enum drm_mode_status *status);
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enum drm_connector_status (*detect)(struct tegra_output *output);
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};
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enum tegra_output_type {
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TEGRA_OUTPUT_RGB,
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TEGRA_OUTPUT_HDMI,
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TEGRA_OUTPUT_DSI,
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TEGRA_OUTPUT_EDP,
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};
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struct tegra_output {
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struct device_node *of_node;
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struct device *dev;
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const struct tegra_output_ops *ops;
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enum tegra_output_type type;
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struct drm_panel *panel;
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struct i2c_adapter *ddc;
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const struct edid *edid;
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unsigned int hpd_irq;
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int hpd_gpio;
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struct drm_encoder encoder;
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struct drm_connector connector;
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};
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static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
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{
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return container_of(e, struct tegra_output, encoder);
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}
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static inline struct tegra_output *connector_to_output(struct drm_connector *c)
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{
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return container_of(c, struct tegra_output, connector);
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}
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static inline int tegra_output_enable(struct tegra_output *output)
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{
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if (output && output->ops && output->ops->enable)
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return output->ops->enable(output);
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return output ? -ENOSYS : -EINVAL;
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}
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static inline int tegra_output_disable(struct tegra_output *output)
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{
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if (output && output->ops && output->ops->disable)
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return output->ops->disable(output);
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return output ? -ENOSYS : -EINVAL;
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}
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static inline int tegra_output_setup_clock(struct tegra_output *output,
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struct clk *clk, unsigned long pclk)
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{
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if (output && output->ops && output->ops->setup_clock)
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return output->ops->setup_clock(output, clk, pclk);
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return output ? -ENOSYS : -EINVAL;
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}
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static inline int tegra_output_check_mode(struct tegra_output *output,
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struct drm_display_mode *mode,
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enum drm_mode_status *status)
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{
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if (output && output->ops && output->ops->check_mode)
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return output->ops->check_mode(output, mode, status);
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return output ? -ENOSYS : -EINVAL;
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}
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/* from bus.c */
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int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device);
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void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device);
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/* from rgb.c */
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extern int tegra_dc_rgb_probe(struct tegra_dc *dc);
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extern int tegra_dc_rgb_remove(struct tegra_dc *dc);
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extern int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
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extern int tegra_dc_rgb_exit(struct tegra_dc *dc);
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/* from output.c */
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extern int tegra_output_probe(struct tegra_output *output);
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extern int tegra_output_remove(struct tegra_output *output);
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extern int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
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extern int tegra_output_exit(struct tegra_output *output);
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/* from dpaux.c */
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struct tegra_dpaux;
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struct drm_dp_link;
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struct drm_dp_aux;
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struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np);
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enum drm_connector_status tegra_dpaux_detect(struct tegra_dpaux *dpaux);
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int tegra_dpaux_attach(struct tegra_dpaux *dpaux, struct tegra_output *output);
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int tegra_dpaux_detach(struct tegra_dpaux *dpaux);
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int tegra_dpaux_enable(struct tegra_dpaux *dpaux);
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int tegra_dpaux_disable(struct tegra_dpaux *dpaux);
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int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding);
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int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link,
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u8 pattern);
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/* from fb.c */
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struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
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unsigned int index);
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bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
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bool tegra_fb_is_tiled(struct drm_framebuffer *framebuffer);
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extern int tegra_drm_fb_init(struct drm_device *drm);
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extern void tegra_drm_fb_exit(struct drm_device *drm);
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#ifdef CONFIG_DRM_TEGRA_FBDEV
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extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
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#endif
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extern struct platform_driver tegra_dc_driver;
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extern struct platform_driver tegra_dsi_driver;
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extern struct platform_driver tegra_sor_driver;
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extern struct platform_driver tegra_hdmi_driver;
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extern struct platform_driver tegra_dpaux_driver;
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extern struct platform_driver tegra_gr2d_driver;
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extern struct platform_driver tegra_gr3d_driver;
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#endif /* HOST1X_DRM_H */
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