diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.h')
-rw-r--r-- | drivers/gpu/drm/tegra/drm.h | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h new file mode 100644 index 000000000000..25522e23c7b8 --- /dev/null +++ b/drivers/gpu/drm/tegra/drm.h @@ -0,0 +1,258 @@ +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef HOST1X_DRM_H +#define HOST1X_DRM_H 1 + +#include <uapi/drm/tegra_drm.h> +#include <linux/host1x.h> + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_fixed.h> + +struct tegra_fb { + struct drm_framebuffer base; + struct tegra_bo **planes; + unsigned int num_planes; +}; + +struct tegra_fbdev { + struct drm_fb_helper base; + struct tegra_fb *fb; +}; + +struct tegra_drm { + struct drm_device *drm; + + struct mutex clients_lock; + struct list_head clients; + + struct tegra_fbdev *fbdev; +}; + +struct tegra_drm_client; + +struct tegra_drm_context { + struct tegra_drm_client *client; + struct host1x_channel *channel; + struct list_head list; +}; + +struct tegra_drm_client_ops { + int (*open_channel)(struct tegra_drm_client *client, + struct tegra_drm_context *context); + void (*close_channel)(struct tegra_drm_context *context); + int (*submit)(struct tegra_drm_context *context, + struct drm_tegra_submit *args, struct drm_device *drm, + struct drm_file *file); +}; + +struct tegra_drm_client { + struct host1x_client base; + struct list_head list; + + const struct tegra_drm_client_ops *ops; +}; + +static inline struct tegra_drm_client * +host1x_to_drm_client(struct host1x_client *client) +{ + return container_of(client, struct tegra_drm_client, base); +} + +extern int tegra_drm_register_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); +extern int tegra_drm_unregister_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); + +extern int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); +extern int tegra_drm_exit(struct tegra_drm *tegra); + +struct tegra_output; + +struct tegra_dc { + struct host1x_client client; + struct device *dev; + spinlock_t lock; + + struct drm_crtc base; + int pipe; + + struct clk *clk; + void __iomem *regs; + int irq; + + struct tegra_output *rgb; + + struct list_head list; + + struct drm_info_list *debugfs_files; + struct drm_minor *minor; + struct dentry *debugfs; + + /* page-flip handling */ + struct drm_pending_vblank_event *event; +}; + +static inline struct tegra_dc * +host1x_client_to_dc(struct host1x_client *client) +{ + return container_of(client, struct tegra_dc, client); +} + +static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) +{ + return container_of(crtc, struct tegra_dc, base); +} + +static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value, + unsigned long reg) +{ + writel(value, dc->regs + (reg << 2)); +} + +static inline unsigned long tegra_dc_readl(struct tegra_dc *dc, + unsigned long reg) +{ + return readl(dc->regs + (reg << 2)); +} + +struct tegra_dc_window { + struct { + unsigned int x; + unsigned int y; + unsigned int w; + unsigned int h; + } src; + struct { + unsigned int x; + unsigned int y; + unsigned int w; + unsigned int h; + } dst; + unsigned int bits_per_pixel; + unsigned int format; + unsigned int stride[2]; + unsigned long base[3]; +}; + +/* from dc.c */ +extern unsigned int tegra_dc_format(uint32_t format); +extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, + const struct tegra_dc_window *window); +extern void tegra_dc_enable_vblank(struct tegra_dc *dc); +extern void tegra_dc_disable_vblank(struct tegra_dc *dc); +extern void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, + struct drm_file *file); + +struct tegra_output_ops { + int (*enable)(struct tegra_output *output); + int (*disable)(struct tegra_output *output); + int (*setup_clock)(struct tegra_output *output, struct clk *clk, + unsigned long pclk); + int (*check_mode)(struct tegra_output *output, + struct drm_display_mode *mode, + enum drm_mode_status *status); +}; + +enum tegra_output_type { + TEGRA_OUTPUT_RGB, + TEGRA_OUTPUT_HDMI, +}; + +struct tegra_output { + struct device_node *of_node; + struct device *dev; + + const struct tegra_output_ops *ops; + enum tegra_output_type type; + + struct i2c_adapter *ddc; + const struct edid *edid; + unsigned int hpd_irq; + int hpd_gpio; + + struct drm_encoder encoder; + struct drm_connector connector; +}; + +static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) +{ + return container_of(e, struct tegra_output, encoder); +} + +static inline struct tegra_output *connector_to_output(struct drm_connector *c) +{ + return container_of(c, struct tegra_output, connector); +} + +static inline int tegra_output_enable(struct tegra_output *output) +{ + if (output && output->ops && output->ops->enable) + return output->ops->enable(output); + + return output ? -ENOSYS : -EINVAL; +} + +static inline int tegra_output_disable(struct tegra_output *output) +{ + if (output && output->ops && output->ops->disable) + return output->ops->disable(output); + + return output ? -ENOSYS : -EINVAL; +} + +static inline int tegra_output_setup_clock(struct tegra_output *output, + struct clk *clk, unsigned long pclk) +{ + if (output && output->ops && output->ops->setup_clock) + return output->ops->setup_clock(output, clk, pclk); + + return output ? -ENOSYS : -EINVAL; +} + +static inline int tegra_output_check_mode(struct tegra_output *output, + struct drm_display_mode *mode, + enum drm_mode_status *status) +{ + if (output && output->ops && output->ops->check_mode) + return output->ops->check_mode(output, mode, status); + + return output ? -ENOSYS : -EINVAL; +} + +/* from bus.c */ +int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device); +void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device); + +/* from rgb.c */ +extern int tegra_dc_rgb_probe(struct tegra_dc *dc); +extern int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); +extern int tegra_dc_rgb_exit(struct tegra_dc *dc); + +/* from output.c */ +extern int tegra_output_parse_dt(struct tegra_output *output); +extern int tegra_output_init(struct drm_device *drm, struct tegra_output *output); +extern int tegra_output_exit(struct tegra_output *output); + +/* from fb.c */ +struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, + unsigned int index); +extern int tegra_drm_fb_init(struct drm_device *drm); +extern void tegra_drm_fb_exit(struct drm_device *drm); +extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); + +extern struct platform_driver tegra_dc_driver; +extern struct platform_driver tegra_hdmi_driver; +extern struct platform_driver tegra_gr2d_driver; + +#endif /* HOST1X_DRM_H */ |