mirror of https://gitee.com/openkylin/linux.git
238 lines
5.8 KiB
C
238 lines
5.8 KiB
C
/*
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* Copyright (C) 2012 Avionic Design GmbH
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* Copyright (C) 2012 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 TEGRA_DRM_H
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#define TEGRA_DRM_H 1
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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_gem_cma_helper.h>
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#include <drm/drm_fb_cma_helper.h>
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#include <drm/drm_fixed.h>
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struct host1x {
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struct drm_device *drm;
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struct device *dev;
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void __iomem *regs;
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struct clk *clk;
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int syncpt;
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int irq;
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struct mutex drm_clients_lock;
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struct list_head drm_clients;
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struct list_head drm_active;
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struct mutex clients_lock;
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struct list_head clients;
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struct drm_fbdev_cma *fbdev;
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};
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struct host1x_client;
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struct host1x_client_ops {
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int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
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int (*drm_exit)(struct host1x_client *client);
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};
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struct host1x_client {
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struct host1x *host1x;
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struct device *dev;
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const struct host1x_client_ops *ops;
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struct list_head list;
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};
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extern int host1x_drm_init(struct host1x *host1x, struct drm_device *drm);
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extern int host1x_drm_exit(struct host1x *host1x);
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extern int host1x_register_client(struct host1x *host1x,
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struct host1x_client *client);
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extern int host1x_unregister_client(struct host1x *host1x,
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struct host1x_client *client);
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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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spinlock_t lock;
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struct host1x *host1x;
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struct device *dev;
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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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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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};
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static inline struct tegra_dc *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 container_of(crtc, struct tegra_dc, base);
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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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};
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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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};
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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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};
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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 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 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_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_parse_dt(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 fb.c */
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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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extern struct platform_driver tegra_host1x_driver;
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extern struct platform_driver tegra_hdmi_driver;
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extern struct platform_driver tegra_dc_driver;
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extern struct drm_driver tegra_drm_driver;
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#endif /* TEGRA_DRM_H */
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