mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
63e28a7a5f
The old code allowed very strange memory types. Now it works like all the other video drivers: ioremap_wc is used unconditionally, and MTRRs are set if PAT is unavailable (unless MTRR is disabled by a module parameter). UC, WB, and WT support is gone. If there are MTRR conflicts that prevent addition of a WC MTRR, adding a non-conflicting MTRR is pointless; it's better to just turn off MTRR support entirely. As an added bonus, any MTRR added is freed on unload. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
141 lines
2.8 KiB
C
141 lines
2.8 KiB
C
#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 */
|