diff options
Diffstat (limited to 'drivers/gpu/drm/gud/gud_internal.h')
| -rw-r--r-- | drivers/gpu/drm/gud/gud_internal.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gud/gud_internal.h b/drivers/gpu/drm/gud/gud_internal.h new file mode 100644 index 000000000000..de2f2d2dbc60 --- /dev/null +++ b/drivers/gpu/drm/gud/gud_internal.h @@ -0,0 +1,154 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef __LINUX_GUD_INTERNAL_H +#define __LINUX_GUD_INTERNAL_H + +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/usb.h> +#include <linux/workqueue.h> +#include <uapi/drm/drm_fourcc.h> + +#include <drm/drm_modes.h> +#include <drm/drm_simple_kms_helper.h> + +struct gud_device { + struct drm_device drm; + struct drm_simple_display_pipe pipe; + struct device *dmadev; + struct work_struct work; + u32 flags; + const struct drm_format_info *xrgb8888_emulation_format; + + u16 *properties; + unsigned int num_properties; + + unsigned int bulk_pipe; + void *bulk_buf; + size_t bulk_len; + + u8 compression; + void *lz4_comp_mem; + void *compress_buf; + + u64 stats_length; + u64 stats_actual_length; + unsigned int stats_num_errors; + + struct mutex ctrl_lock; /* Serialize get/set and status transfers */ + + struct mutex damage_lock; /* Protects the following members: */ + struct drm_framebuffer *fb; + struct drm_rect damage; + bool prev_flush_failed; +}; + +static inline struct gud_device *to_gud_device(struct drm_device *drm) +{ + return container_of(drm, struct gud_device, drm); +} + +static inline struct usb_device *gud_to_usb_device(struct gud_device *gdrm) +{ + return interface_to_usbdev(to_usb_interface(gdrm->drm.dev)); +} + +int gud_usb_get(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t len); +int gud_usb_set(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t len); +int gud_usb_get_u8(struct gud_device *gdrm, u8 request, u16 index, u8 *val); +int gud_usb_set_u8(struct gud_device *gdrm, u8 request, u8 val); + +void gud_clear_damage(struct gud_device *gdrm); +void gud_flush_work(struct work_struct *work); +int gud_pipe_check(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *new_plane_state, + struct drm_crtc_state *new_crtc_state); +void gud_pipe_update(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *old_state); +int gud_connector_fill_properties(struct drm_connector_state *connector_state, + struct gud_property_req *properties); +int gud_get_connectors(struct gud_device *gdrm); + +/* Driver internal fourcc transfer formats */ +#define GUD_DRM_FORMAT_R1 0x00000122 +#define GUD_DRM_FORMAT_XRGB1111 0x03121722 + +static inline u8 gud_from_fourcc(u32 fourcc) +{ + switch (fourcc) { + case GUD_DRM_FORMAT_R1: + return GUD_PIXEL_FORMAT_R1; + case GUD_DRM_FORMAT_XRGB1111: + return GUD_PIXEL_FORMAT_XRGB1111; + case DRM_FORMAT_RGB565: + return GUD_PIXEL_FORMAT_RGB565; + case DRM_FORMAT_XRGB8888: + return GUD_PIXEL_FORMAT_XRGB8888; + case DRM_FORMAT_ARGB8888: + return GUD_PIXEL_FORMAT_ARGB8888; + }; + + return 0; +} + +static inline u32 gud_to_fourcc(u8 format) +{ + switch (format) { + case GUD_PIXEL_FORMAT_R1: + return GUD_DRM_FORMAT_R1; + case GUD_PIXEL_FORMAT_XRGB1111: + return GUD_DRM_FORMAT_XRGB1111; + case GUD_PIXEL_FORMAT_RGB565: + return DRM_FORMAT_RGB565; + case GUD_PIXEL_FORMAT_XRGB8888: + return DRM_FORMAT_XRGB8888; + case GUD_PIXEL_FORMAT_ARGB8888: + return DRM_FORMAT_ARGB8888; + }; + + return 0; +} + +static inline void gud_from_display_mode(struct gud_display_mode_req *dst, + const struct drm_display_mode *src) +{ + u32 flags = src->flags & GUD_DISPLAY_MODE_FLAG_USER_MASK; + + if (src->type & DRM_MODE_TYPE_PREFERRED) + flags |= GUD_DISPLAY_MODE_FLAG_PREFERRED; + + dst->clock = cpu_to_le32(src->clock); + dst->hdisplay = cpu_to_le16(src->hdisplay); + dst->hsync_start = cpu_to_le16(src->hsync_start); + dst->hsync_end = cpu_to_le16(src->hsync_end); + dst->htotal = cpu_to_le16(src->htotal); + dst->vdisplay = cpu_to_le16(src->vdisplay); + dst->vsync_start = cpu_to_le16(src->vsync_start); + dst->vsync_end = cpu_to_le16(src->vsync_end); + dst->vtotal = cpu_to_le16(src->vtotal); + dst->flags = cpu_to_le32(flags); +} + +static inline void gud_to_display_mode(struct drm_display_mode *dst, + const struct gud_display_mode_req *src) +{ + u32 flags = le32_to_cpu(src->flags); + + memset(dst, 0, sizeof(*dst)); + dst->clock = le32_to_cpu(src->clock); + dst->hdisplay = le16_to_cpu(src->hdisplay); + dst->hsync_start = le16_to_cpu(src->hsync_start); + dst->hsync_end = le16_to_cpu(src->hsync_end); + dst->htotal = le16_to_cpu(src->htotal); + dst->vdisplay = le16_to_cpu(src->vdisplay); + dst->vsync_start = le16_to_cpu(src->vsync_start); + dst->vsync_end = le16_to_cpu(src->vsync_end); + dst->vtotal = le16_to_cpu(src->vtotal); + dst->flags = flags & GUD_DISPLAY_MODE_FLAG_USER_MASK; + dst->type = DRM_MODE_TYPE_DRIVER; + if (flags & GUD_DISPLAY_MODE_FLAG_PREFERRED) + dst->type |= DRM_MODE_TYPE_PREFERRED; + drm_mode_set_name(dst); +} + +#endif |