* more details.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/kernel.h>
-#include <linux/tty.h>
#include <linux/console.h>
#include <linux/string.h>
#include <linux/kd.h>
#include <linux/spinlock.h>
#include <linux/ioport.h>
#include <linux/init.h>
+#include <linux/screen_info.h>
#include <linux/smp_lock.h>
#include <video/vga.h>
#include <asm/io.h>
static DEFINE_SPINLOCK(vga_lock);
static int cursor_size_lastfrom;
static int cursor_size_lastto;
+static u32 vgacon_xres;
+static u32 vgacon_yres;
static struct vgastate state;
#define BLANK 0x0020
* appear.
*/
#undef TRIDENT_GLITCH
-
+#define VGA_FONTWIDTH 8 /* VGA does not support fontwidths != 8 */
/*
* Interface used by the world
*/
static void vgacon_save_screen(struct vc_data *c);
static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
int lines);
-static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity,
- u8 blink, u8 underline, u8 reverse);
static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
static unsigned long vgacon_uni_pagedir[2];
-
/* Description of the hardware situation */
-static unsigned long vga_vram_base; /* Base of video memory */
-static unsigned long vga_vram_end; /* End of video memory */
-static u16 vga_video_port_reg; /* Video register select port */
-static u16 vga_video_port_val; /* Video register value port */
-static unsigned int vga_video_num_columns; /* Number of text columns */
-static unsigned int vga_video_num_lines; /* Number of text lines */
-static int vga_can_do_color = 0; /* Do we support colors? */
-static unsigned int vga_default_font_height;/* Height of default screen font */
-static unsigned char vga_video_type; /* Card type */
-static unsigned char vga_hardscroll_enabled;
-static unsigned char vga_hardscroll_user_enable = 1;
+static int vga_init_done __read_mostly;
+static unsigned long vga_vram_base __read_mostly; /* Base of video memory */
+static unsigned long vga_vram_end __read_mostly; /* End of video memory */
+static unsigned int vga_vram_size __read_mostly; /* Size of video memory */
+static u16 vga_video_port_reg __read_mostly; /* Video register select port */
+static u16 vga_video_port_val __read_mostly; /* Video register value port */
+static unsigned int vga_video_num_columns; /* Number of text columns */
+static unsigned int vga_video_num_lines; /* Number of text lines */
+static int vga_can_do_color __read_mostly; /* Do we support colors? */
+static unsigned int vga_default_font_height __read_mostly; /* Height of default screen font */
+static unsigned char vga_video_type __read_mostly; /* Card type */
+static unsigned char vga_hardscroll_enabled __read_mostly;
+static unsigned char vga_hardscroll_user_enable __read_mostly = 1;
static unsigned char vga_font_is_default = 1;
static int vga_vesa_blanked;
static int vga_palette_blanked;
static int vga_is_gfx;
static int vga_512_chars;
static int vga_video_font_height;
-static int vga_scan_lines;
-static unsigned int vga_rolled_over = 0;
+static int vga_scan_lines __read_mostly;
+static unsigned int vga_rolled_over;
+
+int vgacon_text_mode_force = 0;
+
+bool vgacon_text_force(void)
+{
+ return vgacon_text_mode_force ? true : false;
+}
+EXPORT_SYMBOL(vgacon_text_force);
+
+static int __init text_mode(char *str)
+{
+ vgacon_text_mode_force = 1;
+ return 1;
+}
+
+/* force text mode - used by kernel modesetting */
+__setup("nomodeset", text_mode);
static int __init no_scroll(char *str)
{
spin_unlock_irqrestore(&vga_lock, flags);
}
-static const char __init *vgacon_startup(void)
+static inline void vga_set_mem_top(struct vc_data *c)
+{
+ write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
+}
+
+#ifdef CONFIG_VGACON_SOFT_SCROLLBACK
+#include <linux/bootmem.h>
+/* software scrollback */
+static void *vgacon_scrollback;
+static int vgacon_scrollback_tail;
+static int vgacon_scrollback_size;
+static int vgacon_scrollback_rows;
+static int vgacon_scrollback_cnt;
+static int vgacon_scrollback_cur;
+static int vgacon_scrollback_save;
+static int vgacon_scrollback_restore;
+
+static void vgacon_scrollback_init(int pitch)
+{
+ int rows = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024/pitch;
+
+ if (vgacon_scrollback) {
+ vgacon_scrollback_cnt = 0;
+ vgacon_scrollback_tail = 0;
+ vgacon_scrollback_cur = 0;
+ vgacon_scrollback_rows = rows - 1;
+ vgacon_scrollback_size = rows * pitch;
+ }
+}
+
+/*
+ * Called only duing init so call of alloc_bootmen is ok.
+ * Marked __init_refok to silence modpost.
+ */
+static void __init_refok vgacon_scrollback_startup(void)
+{
+ vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE
+ * 1024);
+ vgacon_scrollback_init(vga_video_num_columns * 2);
+}
+
+static void vgacon_scrollback_update(struct vc_data *c, int t, int count)
+{
+ void *p;
+
+ if (!vgacon_scrollback_size || c->vc_num != fg_console)
+ return;
+
+ p = (void *) (c->vc_origin + t * c->vc_size_row);
+
+ while (count--) {
+ scr_memcpyw(vgacon_scrollback + vgacon_scrollback_tail,
+ p, c->vc_size_row);
+ vgacon_scrollback_cnt++;
+ p += c->vc_size_row;
+ vgacon_scrollback_tail += c->vc_size_row;
+
+ if (vgacon_scrollback_tail >= vgacon_scrollback_size)
+ vgacon_scrollback_tail = 0;
+
+ if (vgacon_scrollback_cnt > vgacon_scrollback_rows)
+ vgacon_scrollback_cnt = vgacon_scrollback_rows;
+
+ vgacon_scrollback_cur = vgacon_scrollback_cnt;
+ }
+}
+
+static void vgacon_restore_screen(struct vc_data *c)
+{
+ vgacon_scrollback_save = 0;
+
+ if (!vga_is_gfx && !vgacon_scrollback_restore) {
+ scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
+ c->vc_screenbuf_size > vga_vram_size ?
+ vga_vram_size : c->vc_screenbuf_size);
+ vgacon_scrollback_restore = 1;
+ vgacon_scrollback_cur = vgacon_scrollback_cnt;
+ }
+}
+
+static int vgacon_scrolldelta(struct vc_data *c, int lines)
+{
+ int start, end, count, soff;
+
+ if (!lines) {
+ c->vc_visible_origin = c->vc_origin;
+ vga_set_mem_top(c);
+ return 1;
+ }
+
+ if (!vgacon_scrollback)
+ return 1;
+
+ if (!vgacon_scrollback_save) {
+ vgacon_cursor(c, CM_ERASE);
+ vgacon_save_screen(c);
+ vgacon_scrollback_save = 1;
+ }
+
+ vgacon_scrollback_restore = 0;
+ start = vgacon_scrollback_cur + lines;
+ end = start + abs(lines);
+
+ if (start < 0)
+ start = 0;
+
+ if (start > vgacon_scrollback_cnt)
+ start = vgacon_scrollback_cnt;
+
+ if (end < 0)
+ end = 0;
+
+ if (end > vgacon_scrollback_cnt)
+ end = vgacon_scrollback_cnt;
+
+ vgacon_scrollback_cur = start;
+ count = end - start;
+ soff = vgacon_scrollback_tail - ((vgacon_scrollback_cnt - end) *
+ c->vc_size_row);
+ soff -= count * c->vc_size_row;
+
+ if (soff < 0)
+ soff += vgacon_scrollback_size;
+
+ count = vgacon_scrollback_cnt - start;
+
+ if (count > c->vc_rows)
+ count = c->vc_rows;
+
+ if (count) {
+ int copysize;
+
+ int diff = c->vc_rows - count;
+ void *d = (void *) c->vc_origin;
+ void *s = (void *) c->vc_screenbuf;
+
+ count *= c->vc_size_row;
+ /* how much memory to end of buffer left? */
+ copysize = min(count, vgacon_scrollback_size - soff);
+ scr_memcpyw(d, vgacon_scrollback + soff, copysize);
+ d += copysize;
+ count -= copysize;
+
+ if (count) {
+ scr_memcpyw(d, vgacon_scrollback, count);
+ d += count;
+ }
+
+ if (diff)
+ scr_memcpyw(d, s, diff * c->vc_size_row);
+ } else
+ vgacon_cursor(c, CM_MOVE);
+
+ return 1;
+}
+#else
+#define vgacon_scrollback_startup(...) do { } while (0)
+#define vgacon_scrollback_init(...) do { } while (0)
+#define vgacon_scrollback_update(...) do { } while (0)
+
+static void vgacon_restore_screen(struct vc_data *c)
+{
+ if (c->vc_origin != c->vc_visible_origin)
+ vgacon_scrolldelta(c, 0);
+}
+
+static int vgacon_scrolldelta(struct vc_data *c, int lines)
+{
+ if (!lines) /* Turn scrollback off */
+ c->vc_visible_origin = c->vc_origin;
+ else {
+ int margin = c->vc_size_row * 4;
+ int ul, we, p, st;
+
+ if (vga_rolled_over >
+ (c->vc_scr_end - vga_vram_base) + margin) {
+ ul = c->vc_scr_end - vga_vram_base;
+ we = vga_rolled_over + c->vc_size_row;
+ } else {
+ ul = 0;
+ we = vga_vram_size;
+ }
+ p = (c->vc_visible_origin - vga_vram_base - ul + we) % we +
+ lines * c->vc_size_row;
+ st = (c->vc_origin - vga_vram_base - ul + we) % we;
+ if (st < 2 * margin)
+ margin = 0;
+ if (p < margin)
+ p = 0;
+ if (p > st - margin)
+ p = st;
+ c->vc_visible_origin = vga_vram_base + (p + ul) % we;
+ }
+ vga_set_mem_top(c);
+ return 1;
+}
+#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
+
+static const char *vgacon_startup(void)
{
const char *display_desc = NULL;
u16 saved1, saved2;
volatile u16 *p;
- if (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB) {
+ if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) {
no_vga:
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
}
+ /* boot_params.screen_info initialized? */
+ if ((screen_info.orig_video_mode == 0) &&
+ (screen_info.orig_video_lines == 0) &&
+ (screen_info.orig_video_cols == 0))
+ goto no_vga;
+
/* VGA16 modes are not handled by VGACON */
- if ((ORIG_VIDEO_MODE == 0x0D) || /* 320x200/4 */
- (ORIG_VIDEO_MODE == 0x0E) || /* 640x200/4 */
- (ORIG_VIDEO_MODE == 0x10) || /* 640x350/4 */
- (ORIG_VIDEO_MODE == 0x12) || /* 640x480/4 */
- (ORIG_VIDEO_MODE == 0x6A)) /* 800x600/4, 0x6A is very common */
+ if ((screen_info.orig_video_mode == 0x0D) || /* 320x200/4 */
+ (screen_info.orig_video_mode == 0x0E) || /* 640x200/4 */
+ (screen_info.orig_video_mode == 0x10) || /* 640x350/4 */
+ (screen_info.orig_video_mode == 0x12) || /* 640x480/4 */
+ (screen_info.orig_video_mode == 0x6A)) /* 800x600/4 (VESA) */
goto no_vga;
- vga_video_num_lines = ORIG_VIDEO_LINES;
- vga_video_num_columns = ORIG_VIDEO_COLS;
+ vga_video_num_lines = screen_info.orig_video_lines;
+ vga_video_num_columns = screen_info.orig_video_cols;
state.vgabase = NULL;
- if (ORIG_VIDEO_MODE == 7) { /* Is this a monochrome display? */
+ if (screen_info.orig_video_mode == 7) {
+ /* Monochrome display */
vga_vram_base = 0xb0000;
vga_video_port_reg = VGA_CRT_IM;
vga_video_port_val = VGA_CRT_DM;
- if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) {
+ if ((screen_info.orig_video_ega_bx & 0xff) != 0x10) {
static struct resource ega_console_resource =
- { "ega", 0x3B0, 0x3BF };
+ { .name = "ega", .start = 0x3B0, .end = 0x3BF };
vga_video_type = VIDEO_TYPE_EGAM;
- vga_vram_end = 0xb8000;
+ vga_vram_size = 0x8000;
display_desc = "EGA+";
request_resource(&ioport_resource,
&ega_console_resource);
} else {
static struct resource mda1_console_resource =
- { "mda", 0x3B0, 0x3BB };
+ { .name = "mda", .start = 0x3B0, .end = 0x3BB };
static struct resource mda2_console_resource =
- { "mda", 0x3BF, 0x3BF };
+ { .name = "mda", .start = 0x3BF, .end = 0x3BF };
vga_video_type = VIDEO_TYPE_MDA;
- vga_vram_end = 0xb2000;
+ vga_vram_size = 0x2000;
display_desc = "*MDA";
request_resource(&ioport_resource,
&mda1_console_resource);
vga_vram_base = 0xb8000;
vga_video_port_reg = VGA_CRT_IC;
vga_video_port_val = VGA_CRT_DC;
- if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) {
+ if ((screen_info.orig_video_ega_bx & 0xff) != 0x10) {
int i;
- vga_vram_end = 0xc0000;
+ vga_vram_size = 0x8000;
- if (!ORIG_VIDEO_ISVGA) {
+ if (!screen_info.orig_video_isVGA) {
static struct resource ega_console_resource
- = { "ega", 0x3C0, 0x3DF };
+ = { .name = "ega", .start = 0x3C0, .end = 0x3DF };
vga_video_type = VIDEO_TYPE_EGAC;
display_desc = "EGA";
request_resource(&ioport_resource,
&ega_console_resource);
} else {
static struct resource vga_console_resource
- = { "vga+", 0x3C0, 0x3DF };
+ = { .name = "vga+", .start = 0x3C0, .end = 0x3DF };
vga_video_type = VIDEO_TYPE_VGAC;
display_desc = "VGA+";
request_resource(&ioport_resource,
* and COE=1 isn't necessarily a good idea)
*/
vga_vram_base = 0xa0000;
- vga_vram_end = 0xb0000;
+ vga_vram_size = 0x10000;
outb_p(6, VGA_GFX_I);
outb_p(6, VGA_GFX_D);
#endif
}
} else {
static struct resource cga_console_resource =
- { "cga", 0x3D4, 0x3D5 };
+ { .name = "cga", .start = 0x3D4, .end = 0x3D5 };
vga_video_type = VIDEO_TYPE_CGA;
- vga_vram_end = 0xba000;
+ vga_vram_size = 0x2000;
display_desc = "*CGA";
request_resource(&ioport_resource,
&cga_console_resource);
}
}
- vga_vram_base = VGA_MAP_MEM(vga_vram_base);
- vga_vram_end = VGA_MAP_MEM(vga_vram_end);
+ vga_vram_base = VGA_MAP_MEM(vga_vram_base, vga_vram_size);
+ vga_vram_end = vga_vram_base + vga_vram_size;
/*
* Find out if there is a graphics card present.
|| vga_video_type == VIDEO_TYPE_VGAC
|| vga_video_type == VIDEO_TYPE_EGAM) {
vga_hardscroll_enabled = vga_hardscroll_user_enable;
- vga_default_font_height = ORIG_VIDEO_POINTS;
- vga_video_font_height = ORIG_VIDEO_POINTS;
+ vga_default_font_height = screen_info.orig_video_points;
+ vga_video_font_height = screen_info.orig_video_points;
/* This may be suboptimal but is a safe bet - go with it */
vga_scan_lines =
vga_video_font_height * vga_video_num_lines;
}
+
+ vgacon_xres = screen_info.orig_video_cols * VGA_FONTWIDTH;
+ vgacon_yres = vga_scan_lines;
+
+ if (!vga_init_done) {
+ vgacon_scrollback_startup();
+ vga_init_done = 1;
+ }
+
return display_desc;
}
{
unsigned long p;
- /* We cannot be loaded as a module, therefore init is always 1 */
+ /*
+ * We cannot be loaded as a module, therefore init is always 1,
+ * but vgacon_init can be called more than once, and init will
+ * not be 1.
+ */
c->vc_can_do_color = vga_can_do_color;
- c->vc_cols = vga_video_num_columns;
- c->vc_rows = vga_video_num_lines;
+
+ /* set dimensions manually if init != 0 since vc_resize() will fail */
+ if (init) {
+ c->vc_cols = vga_video_num_columns;
+ c->vc_rows = vga_video_num_lines;
+ } else
+ vc_resize(c, vga_video_num_columns, vga_video_num_lines);
+
c->vc_scan_lines = vga_scan_lines;
c->vc_font.height = vga_video_font_height;
c->vc_complement_mask = 0x7700;
con_set_default_unimap(c);
}
-static inline void vga_set_mem_top(struct vc_data *c)
-{
- write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
-}
-
static void vgacon_deinit(struct vc_data *c)
{
/* When closing the last console, reset video origin */
}
static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity,
- u8 blink, u8 underline, u8 reverse)
+ u8 blink, u8 underline, u8 reverse, u8 italic)
{
u8 attr = color;
if (vga_can_do_color) {
- if (underline)
+ if (italic)
+ attr = (attr & 0xF0) | c->vc_itcolor;
+ else if (underline)
attr = (attr & 0xf0) | c->vc_ulcolor;
else if (intensity == 0)
attr = (attr & 0xf0) | c->vc_halfcolor;
if (intensity == 2)
attr ^= 0x08;
if (!vga_can_do_color) {
- if (underline)
+ if (italic)
+ attr = (attr & 0xF8) | 0x02;
+ else if (underline)
attr = (attr & 0xf8) | 0x01;
else if (intensity == 0)
attr = (attr & 0xf0) | 0x08;
cursor_size_lastto = to;
spin_lock_irqsave(&vga_lock, flags);
- outb_p(0x0a, vga_video_port_reg); /* Cursor start */
- curs = inb_p(vga_video_port_val);
- outb_p(0x0b, vga_video_port_reg); /* Cursor end */
- cure = inb_p(vga_video_port_val);
+ if (vga_video_type >= VIDEO_TYPE_VGAC) {
+ outb_p(VGA_CRTC_CURSOR_START, vga_video_port_reg);
+ curs = inb_p(vga_video_port_val);
+ outb_p(VGA_CRTC_CURSOR_END, vga_video_port_reg);
+ cure = inb_p(vga_video_port_val);
+ } else {
+ curs = 0;
+ cure = 0;
+ }
curs = (curs & 0xc0) | from;
cure = (cure & 0xe0) | to;
- outb_p(0x0a, vga_video_port_reg); /* Cursor start */
+ outb_p(VGA_CRTC_CURSOR_START, vga_video_port_reg);
outb_p(curs, vga_video_port_val);
- outb_p(0x0b, vga_video_port_reg); /* Cursor end */
+ outb_p(VGA_CRTC_CURSOR_END, vga_video_port_reg);
outb_p(cure, vga_video_port_val);
spin_unlock_irqrestore(&vga_lock, flags);
}
static void vgacon_cursor(struct vc_data *c, int mode)
{
- if (c->vc_origin != c->vc_visible_origin)
- vgacon_scrolldelta(c, 0);
+ if (c->vc_mode != KD_TEXT)
+ return;
+
+ vgacon_restore_screen(c);
+
switch (mode) {
case CM_ERASE:
- write_vga(14, (vga_vram_end - vga_vram_base - 1) / 2);
+ write_vga(14, (c->vc_pos - vga_vram_base) / 2);
+ if (vga_video_type >= VIDEO_TYPE_VGAC)
+ vgacon_set_cursor_size(c->vc_x, 31, 30);
+ else
+ vgacon_set_cursor_size(c->vc_x, 31, 31);
break;
case CM_MOVE:
10 ? 1 : 2));
break;
case CUR_NONE:
- vgacon_set_cursor_size(c->vc_x, 31, 30);
+ if (vga_video_type >= VIDEO_TYPE_VGAC)
+ vgacon_set_cursor_size(c->vc_x, 31, 30);
+ else
+ vgacon_set_cursor_size(c->vc_x, 31, 31);
break;
default:
vgacon_set_cursor_size(c->vc_x, 1,
}
}
+static int vgacon_doresize(struct vc_data *c,
+ unsigned int width, unsigned int height)
+{
+ unsigned long flags;
+ unsigned int scanlines = height * c->vc_font.height;
+ u8 scanlines_lo = 0, r7 = 0, vsync_end = 0, mode, max_scan;
+
+ spin_lock_irqsave(&vga_lock, flags);
+
+ vgacon_xres = width * VGA_FONTWIDTH;
+ vgacon_yres = height * c->vc_font.height;
+ if (vga_video_type >= VIDEO_TYPE_VGAC) {
+ outb_p(VGA_CRTC_MAX_SCAN, vga_video_port_reg);
+ max_scan = inb_p(vga_video_port_val);
+
+ if (max_scan & 0x80)
+ scanlines <<= 1;
+
+ outb_p(VGA_CRTC_MODE, vga_video_port_reg);
+ mode = inb_p(vga_video_port_val);
+
+ if (mode & 0x04)
+ scanlines >>= 1;
+
+ scanlines -= 1;
+ scanlines_lo = scanlines & 0xff;
+
+ outb_p(VGA_CRTC_OVERFLOW, vga_video_port_reg);
+ r7 = inb_p(vga_video_port_val) & ~0x42;
+
+ if (scanlines & 0x100)
+ r7 |= 0x02;
+ if (scanlines & 0x200)
+ r7 |= 0x40;
+
+ /* deprotect registers */
+ outb_p(VGA_CRTC_V_SYNC_END, vga_video_port_reg);
+ vsync_end = inb_p(vga_video_port_val);
+ outb_p(VGA_CRTC_V_SYNC_END, vga_video_port_reg);
+ outb_p(vsync_end & ~0x80, vga_video_port_val);
+ }
+
+ outb_p(VGA_CRTC_H_DISP, vga_video_port_reg);
+ outb_p(width - 1, vga_video_port_val);
+ outb_p(VGA_CRTC_OFFSET, vga_video_port_reg);
+ outb_p(width >> 1, vga_video_port_val);
+
+ if (vga_video_type >= VIDEO_TYPE_VGAC) {
+ outb_p(VGA_CRTC_V_DISP_END, vga_video_port_reg);
+ outb_p(scanlines_lo, vga_video_port_val);
+ outb_p(VGA_CRTC_OVERFLOW, vga_video_port_reg);
+ outb_p(r7,vga_video_port_val);
+
+ /* reprotect registers */
+ outb_p(VGA_CRTC_V_SYNC_END, vga_video_port_reg);
+ outb_p(vsync_end, vga_video_port_val);
+ }
+
+ spin_unlock_irqrestore(&vga_lock, flags);
+ return 0;
+}
+
static int vgacon_switch(struct vc_data *c)
{
+ int x = c->vc_cols * VGA_FONTWIDTH;
+ int y = c->vc_rows * c->vc_font.height;
+ int rows = screen_info.orig_video_lines * vga_default_font_height/
+ c->vc_font.height;
/*
* We need to save screen size here as it's the only way
* we can spot the screen has been resized and we need to
*/
vga_video_num_columns = c->vc_cols;
vga_video_num_lines = c->vc_rows;
- if (!vga_is_gfx)
+
+ /* We can only copy out the size of the video buffer here,
+ * otherwise we get into VGA BIOS */
+
+ if (!vga_is_gfx) {
scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
- c->vc_screenbuf_size);
+ c->vc_screenbuf_size > vga_vram_size ?
+ vga_vram_size : c->vc_screenbuf_size);
+
+ if ((vgacon_xres != x || vgacon_yres != y) &&
+ (!(vga_video_num_columns % 2) &&
+ vga_video_num_columns <= screen_info.orig_video_cols &&
+ vga_video_num_lines <= rows))
+ vgacon_doresize(c, c->vc_cols, c->vc_rows);
+ }
+
+ vgacon_scrollback_init(c->vc_size_row);
return 0; /* Redrawing not needed */
}
{
int i, j;
+ vga_w(state.vgabase, VGA_PEL_MSK, 0xff);
for (i = j = 0; i < 16; i++) {
vga_w(state.vgabase, VGA_PEL_IW, table[i]);
vga_w(state.vgabase, VGA_PEL_D, vc->vc_palette[j++] >> 2);
{
int i;
+ vga_w(state->vgabase, VGA_PEL_MSK, 0xff);
for (i = 0; i < 16; i++) {
vga_w(state->vgabase, VGA_PEL_IW, i);
vga_w(state->vgabase, VGA_PEL_D, 0);
char *charmap;
if (vga_video_type != VIDEO_TYPE_EGAM) {
- charmap = (char *) VGA_MAP_MEM(colourmap);
+ charmap = (char *) VGA_MAP_MEM(colourmap, 0);
beg = 0x0e;
#ifdef VGA_CAN_DO_64KB
if (vga_video_type == VIDEO_TYPE_VGAC)
beg = 0x06;
#endif
} else {
- charmap = (char *) VGA_MAP_MEM(blackwmap);
+ charmap = (char *) VGA_MAP_MEM(blackwmap, 0);
beg = 0x0a;
}
/* if 512 char mode is already enabled don't re-enable it. */
if ((set) && (ch512 != vga_512_chars)) {
- int i;
-
/* attribute controller */
for (i = 0; i < MAX_NR_CONSOLES; i++) {
struct vc_data *c = vc_cons[i].d;
outb_p(0x12, vga_video_port_reg); /* Vertical display limit */
outb_p(vde, vga_video_port_val);
spin_unlock_irq(&vga_lock);
+ vga_video_font_height = fontheight;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
struct vc_data *c = vc_cons[i].d;
if (vga_video_type < VIDEO_TYPE_EGAM)
return -EINVAL;
- if (font->width != 8 || (charcount != 256 && charcount != 512))
+ if (font->width != VGA_FONTWIDTH ||
+ (charcount != 256 && charcount != 512))
return -EINVAL;
rc = vgacon_do_font_op(&state, font->data, 1, charcount == 512);
if (vga_video_type < VIDEO_TYPE_EGAM)
return -EINVAL;
- font->width = 8;
+ font->width = VGA_FONTWIDTH;
font->height = c->vc_font.height;
font->charcount = vga_512_chars ? 512 : 256;
if (!font->data)
return 0;
- return vgacon_do_font_op(&state, font->data, 0, 0);
+ return vgacon_do_font_op(&state, font->data, 0, vga_512_chars);
}
#else
#endif
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
+static int vgacon_resize(struct vc_data *c, unsigned int width,
+ unsigned int height, unsigned int user)
{
- if (!lines) /* Turn scrollback off */
- c->vc_visible_origin = c->vc_origin;
- else {
- int vram_size = vga_vram_end - vga_vram_base;
- int margin = c->vc_size_row * 4;
- int ul, we, p, st;
-
- if (vga_rolled_over >
- (c->vc_scr_end - vga_vram_base) + margin) {
- ul = c->vc_scr_end - vga_vram_base;
- we = vga_rolled_over + c->vc_size_row;
- } else {
- ul = 0;
- we = vram_size;
- }
- p = (c->vc_visible_origin - vga_vram_base - ul + we) % we +
- lines * c->vc_size_row;
- st = (c->vc_origin - vga_vram_base - ul + we) % we;
- if (st < 2 * margin)
- margin = 0;
- if (p < margin)
- p = 0;
- if (p > st - margin)
- p = st;
- c->vc_visible_origin = vga_vram_base + (p + ul) % we;
- }
- vga_set_mem_top(c);
- return 1;
+ if (width % 2 || width > screen_info.orig_video_cols ||
+ height > (screen_info.orig_video_lines * vga_default_font_height)/
+ c->vc_font.height)
+ /* let svgatextmode tinker with video timings and
+ return success */
+ return (user) ? 0 : -EINVAL;
+
+ if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */
+ vgacon_doresize(c, width, height);
+ return 0;
}
static int vgacon_set_origin(struct vc_data *c)
* console initialization routines.
*/
vga_bootup_console = 1;
- c->vc_x = ORIG_X;
- c->vc_y = ORIG_Y;
+ c->vc_x = screen_info.orig_x;
+ c->vc_y = screen_info.orig_y;
}
+
+ /* We can't copy in more than the size of the video buffer,
+ * or we'll be copying in VGA BIOS */
+
if (!vga_is_gfx)
scr_memcpyw((u16 *) c->vc_screenbuf, (u16 *) c->vc_origin,
- c->vc_screenbuf_size);
+ c->vc_screenbuf_size > vga_vram_size ? vga_vram_size : c->vc_screenbuf_size);
}
static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
unsigned long oldo;
unsigned int delta;
- if (t || b != c->vc_rows || vga_is_gfx)
+ if (t || b != c->vc_rows || vga_is_gfx || c->vc_mode != KD_TEXT)
return 0;
- if (c->vc_origin != c->vc_visible_origin)
- vgacon_scrolldelta(c, 0);
-
if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
return 0;
+ vgacon_restore_screen(c);
oldo = c->vc_origin;
delta = lines * c->vc_size_row;
if (dir == SM_UP) {
+ vgacon_scrollback_update(c, t, lines);
if (c->vc_scr_end + delta >= vga_vram_end) {
scr_memcpyw((u16 *) vga_vram_base,
(u16 *) (oldo + delta),
.con_blank = vgacon_blank,
.con_font_set = vgacon_font_set,
.con_font_get = vgacon_font_get,
+ .con_resize = vgacon_resize,
.con_set_palette = vgacon_set_palette,
.con_scrolldelta = vgacon_scrolldelta,
.con_set_origin = vgacon_set_origin,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff