diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.h | 234 |
1 files changed, 234 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..3a843a77ddc7 --- /dev/null +++ b/drivers/gpu/drm/tegra/drm.h @@ -0,0 +1,234 @@ +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012 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 TEGRA_DRM_H +#define TEGRA_DRM_H 1 + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_fb_cma_helper.h> +#include <drm/drm_fixed.h> + +struct tegra_framebuffer { + struct drm_framebuffer base; + struct drm_gem_cma_object *obj; +}; + +static inline struct tegra_framebuffer *to_tegra_fb(struct drm_framebuffer *fb) +{ + return container_of(fb, struct tegra_framebuffer, base); +} + +struct host1x { + struct drm_device *drm; + struct device *dev; + void __iomem *regs; + struct clk *clk; + int syncpt; + int irq; + + struct mutex drm_clients_lock; + struct list_head drm_clients; + struct list_head drm_active; + + struct mutex clients_lock; + struct list_head clients; + + struct drm_fbdev_cma *fbdev; + struct tegra_framebuffer fb; +}; + +struct host1x_client; + +struct host1x_client_ops { + int (*drm_init)(struct host1x_client *client, struct drm_device *drm); + int (*drm_exit)(struct host1x_client *client); +}; + +struct host1x_client { + struct host1x *host1x; + struct device *dev; + + const struct host1x_client_ops *ops; + + struct list_head list; +}; + +extern int host1x_drm_init(struct host1x *host1x, struct drm_device *drm); +extern int host1x_drm_exit(struct host1x *host1x); + +extern int host1x_register_client(struct host1x *host1x, + struct host1x_client *client); +extern int host1x_unregister_client(struct host1x *host1x, + struct host1x_client *client); + +struct tegra_output; + +struct tegra_dc { + struct host1x_client client; + + struct host1x *host1x; + struct device *dev; + + 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; +}; + +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_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 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 gem.c */ +extern struct tegra_gem_object *tegra_gem_alloc(struct drm_device *drm, + size_t size); +extern int tegra_gem_handle_create(struct drm_device *drm, + struct drm_file *file, size_t size, + unsigned long flags, uint32_t *handle); +extern int tegra_gem_dumb_create(struct drm_file *file, struct drm_device *drm, + struct drm_mode_create_dumb *args); +extern int tegra_gem_dumb_map_offset(struct drm_file *file, + struct drm_device *drm, uint32_t handle, + uint64_t *offset); +extern int tegra_gem_dumb_destroy(struct drm_file *file, + struct drm_device *drm, uint32_t handle); +extern int tegra_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); +extern int tegra_gem_init_object(struct drm_gem_object *obj); +extern void tegra_gem_free_object(struct drm_gem_object *obj); +extern struct vm_operations_struct tegra_gem_vm_ops; + +/* from fb.c */ +extern int tegra_drm_fb_init(struct drm_device *drm); +extern void tegra_drm_fb_exit(struct drm_device *drm); + +extern struct platform_driver tegra_host1x_driver; +extern struct platform_driver tegra_hdmi_driver; +extern struct platform_driver tegra_dc_driver; +extern struct drm_driver tegra_drm_driver; + +#endif /* TEGRA_DRM_H */ |