| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _UVESAFB_H |
| #define _UVESAFB_H |
| |
| #include <uapi/video/uvesafb.h> |
| |
| |
| /* VBE CRTC Info Block */ |
| struct vbe_crtc_ib { |
| u16 horiz_total; |
| u16 horiz_start; |
| u16 horiz_end; |
| u16 vert_total; |
| u16 vert_start; |
| u16 vert_end; |
| u8 flags; |
| u32 pixel_clock; |
| u16 refresh_rate; |
| u8 reserved[40]; |
| } __attribute__ ((packed)); |
| |
| #define VBE_MODE_VGACOMPAT 0x20 |
| #define VBE_MODE_COLOR 0x08 |
| #define VBE_MODE_SUPPORTEDHW 0x01 |
| #define VBE_MODE_GRAPHICS 0x10 |
| #define VBE_MODE_LFB 0x80 |
| |
| #define VBE_MODE_MASK (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \ |
| VBE_MODE_GRAPHICS | VBE_MODE_LFB) |
| |
| /* VBE Mode Info Block */ |
| struct vbe_mode_ib { |
| /* for all VBE revisions */ |
| u16 mode_attr; |
| u8 winA_attr; |
| u8 winB_attr; |
| u16 win_granularity; |
| u16 win_size; |
| u16 winA_seg; |
| u16 winB_seg; |
| u32 win_func_ptr; |
| u16 bytes_per_scan_line; |
| |
| /* for VBE 1.2+ */ |
| u16 x_res; |
| u16 y_res; |
| u8 x_char_size; |
| u8 y_char_size; |
| u8 planes; |
| u8 bits_per_pixel; |
| u8 banks; |
| u8 memory_model; |
| u8 bank_size; |
| u8 image_pages; |
| u8 reserved1; |
| |
| /* Direct color fields for direct/6 and YUV/7 memory models. */ |
| /* Offsets are bit positions of lsb in the mask. */ |
| u8 red_len; |
| u8 red_off; |
| u8 green_len; |
| u8 green_off; |
| u8 blue_len; |
| u8 blue_off; |
| u8 rsvd_len; |
| u8 rsvd_off; |
| u8 direct_color_info; /* direct color mode attributes */ |
| |
| /* for VBE 2.0+ */ |
| u32 phys_base_ptr; |
| u8 reserved2[6]; |
| |
| /* for VBE 3.0+ */ |
| u16 lin_bytes_per_scan_line; |
| u8 bnk_image_pages; |
| u8 lin_image_pages; |
| u8 lin_red_len; |
| u8 lin_red_off; |
| u8 lin_green_len; |
| u8 lin_green_off; |
| u8 lin_blue_len; |
| u8 lin_blue_off; |
| u8 lin_rsvd_len; |
| u8 lin_rsvd_off; |
| u32 max_pixel_clock; |
| u16 mode_id; |
| u8 depth; |
| } __attribute__ ((packed)); |
| |
| #define UVESAFB_DEFAULT_MODE "640x480-16" |
| |
| /* How long to wait for a reply from userspace [ms] */ |
| #define UVESAFB_TIMEOUT 5000 |
| |
| /* Max number of concurrent tasks */ |
| #define UVESAFB_TASKS_MAX 16 |
| |
| #define dac_reg (0x3c8) |
| #define dac_val (0x3c9) |
| |
| struct uvesafb_pal_entry { |
| u_char blue, green, red, pad; |
| } __attribute__ ((packed)); |
| |
| struct uvesafb_ktask { |
| struct uvesafb_task t; |
| void *buf; |
| struct completion *done; |
| u32 ack; |
| }; |
| |
| static int uvesafb_exec(struct uvesafb_ktask *tsk); |
| |
| #define UVESAFB_EXACT_RES 1 |
| #define UVESAFB_EXACT_DEPTH 2 |
| |
| struct uvesafb_par { |
| struct vbe_ib vbe_ib; /* VBE Info Block */ |
| struct vbe_mode_ib *vbe_modes; /* list of supported VBE modes */ |
| int vbe_modes_cnt; |
| |
| u8 nocrtc; |
| u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ |
| u8 pmi_setpal; /* PMI for palette changes */ |
| u16 *pmi_base; /* protected mode interface location */ |
| void *pmi_start; |
| void *pmi_pal; |
| u8 *vbe_state_orig; /* |
| * original hardware state, before the |
| * driver was loaded |
| */ |
| u8 *vbe_state_saved; /* state saved by fb_save_state */ |
| int vbe_state_size; |
| atomic_t ref_count; |
| |
| int mode_idx; |
| struct vbe_crtc_ib crtc; |
| int mtrr_handle; |
| }; |
| |
| #endif /* _UVESAFB_H */ |
