85 static void vgacon_init(struct vc_data *c, int init);
86 static void vgacon_deinit(struct vc_data *c);
87 static void vgacon_cursor(struct vc_data *c, int mode);
88 static int vgacon_switch(struct vc_data *c);
89 static int vgacon_blank(struct vc_data *c, int blank);
90 static int vgacon_font_op(struct vc_data *c, struct console_font_op *op);
91 static int vgacon_set_palette(struct vc_data *c, unsigned char *table);
92 static int vgacon_scrolldelta(struct vc_data *c, int lines);
93 static int vgacon_set_origin(struct vc_data *c);
94 static void vgacon_save_screen(struct vc_data *c);
95 static int vgacon_scroll(struct vc_data *c, int t, int b, int dir, int lines);
96 static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity, u8 blink, u8 underline, u8 r…
97 static void vgacon_invert_region(struct vc_data *c, u16 *p, int count);
325 static void vgacon_init(struct vc_data *c, int init)  in vgacon_init()  argument
330 	c->vc_can_do_color = vga_can_do_color;  in vgacon_init()
331 	c->vc_cols = vga_video_num_columns;  in vgacon_init()
332 	c->vc_rows = vga_video_num_lines;  in vgacon_init()
333 	c->vc_complement_mask = 0x7700;  in vgacon_init()
334 	p = *c->vc_uni_pagedir_loc;  in vgacon_init()
335 	if (c->vc_uni_pagedir_loc == &c->vc_uni_pagedir ||  in vgacon_init()
336 	    !--c->vc_uni_pagedir_loc[1])  in vgacon_init()
337 		con_free_unimap(c->vc_num);  in vgacon_init()
338 	c->vc_uni_pagedir_loc = vgacon_uni_pagedir;  in vgacon_init()
341 		con_set_default_unimap(c->vc_num);  in vgacon_init()
344 static inline void vga_set_mem_top(struct vc_data *c)  in vga_set_mem_top()  argument
346 	write_vga(12, (c->vc_visible_origin-vga_vram_base)/2);  in vga_set_mem_top()
349 static void vgacon_deinit(struct vc_data *c)  in vgacon_deinit()  argument
353 		c->vc_visible_origin = vga_vram_base;  in vgacon_deinit()
354 		vga_set_mem_top(c);  in vgacon_deinit()
355 		con_free_unimap(c->vc_num);  in vgacon_deinit()
357 	c->vc_uni_pagedir_loc = &c->vc_uni_pagedir;  in vgacon_deinit()
358 	con_set_default_unimap(c->vc_num);  in vgacon_deinit()
361 static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity, u8 blink, u8 underline, u8 r…  in vgacon_build_attr()  argument
367 			attr = (attr & 0xf0) | c->vc_ulcolor;  in vgacon_build_attr()
369 			attr = (attr & 0xf0) | c->vc_halfcolor;  in vgacon_build_attr()
386 static void vgacon_invert_region(struct vc_data *c, u16 *p, int count)  in vgacon_invert_region()  argument
429 static void vgacon_cursor(struct vc_data *c, int mode)  in vgacon_cursor()  argument
431     if (c->vc_origin != c->vc_visible_origin)  in vgacon_cursor()
432 	vgacon_scrolldelta(c, 0);  in vgacon_cursor()
440 	    write_vga(14, (c->vc_pos-vga_vram_base)/2);  in vgacon_cursor()
441 	    switch (c->vc_cursor_type & 0x0f) {  in vgacon_cursor()
443 			vgacon_set_cursor_size(c->vc_x,   in vgacon_cursor()
448 			vgacon_set_cursor_size(c->vc_x,   in vgacon_cursor()
453 			vgacon_set_cursor_size(c->vc_x,   in vgacon_cursor()
458 			vgacon_set_cursor_size(c->vc_x,   in vgacon_cursor()
463 			vgacon_set_cursor_size(c->vc_x, 31, 30);  in vgacon_cursor()
466 			vgacon_set_cursor_size(c->vc_x, 1, video_font_height);  in vgacon_cursor()
473 static int vgacon_switch(struct vc_data *c)  in vgacon_switch()  argument
480 	vga_video_num_columns = c->vc_cols;  in vgacon_switch()
481 	vga_video_num_lines = c->vc_rows;  in vgacon_switch()
483 		scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf, c->vc_screenbuf_size);  in vgacon_switch()
487 static void vga_set_palette(struct vc_data *c, unsigned char *table)  in vga_set_palette()  argument
493 		outb_p (c->vc_palette[j++]>>2, dac_val) ;  in vga_set_palette()
494 		outb_p (c->vc_palette[j++]>>2, dac_val) ;  in vga_set_palette()
495 		outb_p (c->vc_palette[j++]>>2, dac_val) ;  in vga_set_palette()
499 static int vgacon_set_palette(struct vc_data *c, unsigned char *table)  in vgacon_set_palette()  argument
502 	if (vga_video_type != VIDEO_TYPE_VGAC || vga_palette_blanked || !CON_IS_VISIBLE(c))  in vgacon_set_palette()
504 	vga_set_palette(c, table);  in vgacon_set_palette()
642 static int vgacon_blank(struct vc_data *c, int blank)  in vgacon_blank()  argument
651 			vga_set_palette(c, color_table);  in vgacon_blank()
664 		vgacon_set_origin(c);  in vgacon_blank()
665 		scr_memsetw((void *)vga_vram_base, BLANK, c->vc_screenbuf_size);  in vgacon_blank()
668 		scr_memsetw((void *)vga_vram_base, BLANK, c->vc_screenbuf_size);  in vgacon_blank()
816 			struct vc_data *c = vc_cons[i].d;  in vgacon_do_font_op()  local
817 			if (c && c->vc_sw == &vga_con)  in vgacon_do_font_op()
818 				c->vc_hi_font_mask = ch512 ? 0x0800 : 0;  in vgacon_do_font_op()
888 static int vgacon_font_op(struct vc_data *c, struct console_font_op *op)  in vgacon_font_op()  argument
914 static int vgacon_font_op(struct vc_data *c, struct console_font_op *op)  in vgacon_font_op()  argument
921 static int vgacon_scrolldelta(struct vc_data *c, int lines)  in vgacon_scrolldelta()  argument
924 		c->vc_visible_origin = c->vc_origin;  in vgacon_scrolldelta()
927 		int margin = c->vc_size_row * 4;  in vgacon_scrolldelta()
930 		if (vga_rolled_over > (c->vc_scr_end - vga_vram_base) + margin) {  in vgacon_scrolldelta()
931 			ul = c->vc_scr_end - vga_vram_base;  in vgacon_scrolldelta()
932 			we = vga_rolled_over + c->vc_size_row;  in vgacon_scrolldelta()
937 		p = (c->vc_visible_origin - vga_vram_base - ul + we) % we + lines * c->vc_size_row;  in vgacon_scrolldelta()
938 		st = (c->vc_origin - vga_vram_base - ul + we) % we;  in vgacon_scrolldelta()
943 		c->vc_visible_origin = vga_vram_base + (p + ul) % we;  in vgacon_scrolldelta()
945 	vga_set_mem_top(c);  in vgacon_scrolldelta()
949 static int vgacon_set_origin(struct vc_data *c)  in vgacon_set_origin()  argument
954 	c->vc_origin = c->vc_visible_origin = vga_vram_base;  in vgacon_set_origin()
955 	vga_set_mem_top(c);  in vgacon_set_origin()
960 static void vgacon_save_screen(struct vc_data *c)  in vgacon_save_screen()  argument
970 		c->vc_x = ORIG_X;  in vgacon_save_screen()
971 		c->vc_y = ORIG_Y;  in vgacon_save_screen()
974 		scr_memcpyw((u16 *) c->vc_screenbuf, (u16 *) c->vc_origin, c->vc_screenbuf_size);  in vgacon_save_screen()
977 static int vgacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)  in vgacon_scroll()  argument
982 	if (t || b != c->vc_rows || vga_is_gfx)  in vgacon_scroll()
985 	if (c->vc_origin != c->vc_visible_origin)  in vgacon_scroll()
986 		vgacon_scrolldelta(c, 0);  in vgacon_scroll()
988 	if (!vga_hardscroll_enabled || lines >= c->vc_rows/2)  in vgacon_scroll()
991 	oldo = c->vc_origin;  in vgacon_scroll()
992 	delta = lines * c->vc_size_row;  in vgacon_scroll()
994 		if (c->vc_scr_end + delta >= vga_vram_end) {  in vgacon_scroll()
997 				    c->vc_screenbuf_size - delta);  in vgacon_scroll()
998 			c->vc_origin = vga_vram_base;  in vgacon_scroll()
1001 			c->vc_origin += delta;  in vgacon_scroll()
1002 		scr_memsetw((u16 *)(c->vc_origin + c->vc_screenbuf_size - delta), c->vc_video_erase_char, delta);  in vgacon_scroll()
1005 			scr_memmovew((u16 *)(vga_vram_end - c->vc_screenbuf_size + delta),  in vgacon_scroll()
1007 				     c->vc_screenbuf_size - delta);  in vgacon_scroll()
1008 			c->vc_origin = vga_vram_end - c->vc_screenbuf_size;  in vgacon_scroll()
1011 			c->vc_origin -= delta;  in vgacon_scroll()
1012 		c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size;  in vgacon_scroll()
1013 		scr_memsetw((u16 *)(c->vc_origin), c->vc_video_erase_char, delta);  in vgacon_scroll()
1015 	c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size;  in vgacon_scroll()
1016 	c->vc_visible_origin = c->vc_origin;  in vgacon_scroll()
1017 	vga_set_mem_top(c);  in vgacon_scroll()
1018 	c->vc_pos = (c->vc_pos - oldo) + c->vc_origin;  in vgacon_scroll()
1027 static int vgacon_dummy(struct vc_data *c)  in vgacon_dummy()  argument