Thomas, James, list,
The FB API is still not entirely stable according to Thomas and James but I
really want to get my laptop working with 2.5 and X. 2.5.38 has new sisfb
code that actually works but it is not quite ready for the current FB API,
and does not compile.
This patch is the best I can do right now in fixing that. It compiles, links
and boots and shows a penguin logo, but it does not run X.
When starting X it says:
sisfb: Change mode to 1024x768x16-60Hz
sisfb: CRT2 type is LCD
sisfb: (LCDInfo = 0xe9 LCDResInfo = 0x2 LCDTypeInfo = 0xe)
X says:
mmap fbmem: Invalid argument
The diff moves a file around, which is why it is pretty large. The meat is
in the first file.
diff -uBbrN linux-2.5.38/drivers/video/sis/sis_main.c linux-ahu/drivers/video/sis/sis_main.c
--- linux-2.5.38/drivers/video/sis/sis_main.c Sun Sep 22 23:02:10 2002
+++ linux-ahu/drivers/video/sis/sis_main.c Sun Sep 22 22:49:28 2002
@@ -646,11 +646,19 @@
return 0;
}
+static struct fb_fix_screeninfo sisfb_fix __initdata = {
+ .id = "SIS VGA",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .accel = FB_ACCEL_SIS_GLAMOUR,
+};
+
+
static void sisfb_set_disp(int con, struct fb_var_screeninfo *var)
{
struct fb_fix_screeninfo fix;
struct display *display;
struct display_switch *sw;
+ static spinlock_t driver_lock = SPIN_LOCK_UNLOCKED;
long flags;
if (con >= 0)
@@ -663,18 +671,20 @@
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,23)
display->screen_base = ivideo.video_vbase;
#endif
- display->visual = fix.visual;
- display->type = fix.type;
- display->type_aux = fix.type_aux;
- display->ypanstep = fix.ypanstep;
- display->ywrapstep = fix.ywrapstep;
- display->line_length = fix.line_length;
+ sisfb_fix.visual = fix.visual;
+ sisfb_fix.type = fix.type;
+ sisfb_fix.type_aux = fix.type_aux;
+ sisfb_fix.ypanstep = fix.ypanstep;
+ sisfb_fix.ywrapstep = fix.ywrapstep;
+ sisfb_fix.line_length = fix.line_length;
display->next_line = fix.line_length;
display->can_soft_blank = 0;
display->inverse = sisfb_inverse;
display->var = *var;
- save_flags(flags);
+ fb_info.fix=sisfb_fix;
+
+ spin_lock_irqsave(&driver_lock, flags);
switch (ivideo.video_bpp) {
#ifdef FBCON_HAS_CFB8
case 8:
@@ -706,7 +716,7 @@
}
memcpy(&sisfb_sw, sw, sizeof(*sw));
display->dispsw = &sisfb_sw;
- restore_flags(flags);
+ spin_unlock_irqrestore(&driver_lock, flags);
display->scrollmode = SCROLL_YREDRAW;
sisfb_sw.bmove = fbcon_redraw_bmove;
@@ -2560,8 +2570,8 @@
static struct fb_ops sisfb_ops = {
.owner = THIS_MODULE,
- .fb_get_fix = sisfb_get_fix,
- .fb_get_var = sisfb_get_var,
+ // .fb_get_fix = sisfb_get_fix,
+ // .fb_get_var = sisfb_get_var,
.fb_set_var = sisfb_set_var,
.fb_get_cmap = sisfb_get_cmap,
.fb_set_cmap = sisfb_set_cmap,
@@ -2627,7 +2637,7 @@
return 1;
}
-static void sisfb_blank(int blank, struct fb_info *info)
+static int sisfb_blank(int blank, struct fb_info *info)
{
u8 reg;
@@ -2641,6 +2651,7 @@
vgawb(CRTC_ADR, 0x17);
vgawb(CRTC_DATA, reg);
+ return 0;
}
int sisfb_setup(char *options)
diff -uBbrN linux-2.5.38/drivers/video/sis/sis_main.h linux-ahu/drivers/video/sis/sis_main.h
--- linux-2.5.38/drivers/video/sis/sis_main.h Sun Sep 22 23:01:26 2002
+++ linux-ahu/drivers/video/sis/sis_main.h Sun Sep 22 22:42:26 2002
@@ -717,7 +716,7 @@
int sisfb_init(void);
static int sisfb_update_var(int con, struct fb_info *info);
static int sisfb_switch(int con, struct fb_info *info);
-static void sisfb_blank(int blank, struct fb_info *info);
+static int sisfb_blank(int blank, struct fb_info *info);
/* hardware access routines */
void sisfb_set_reg1(u16 port, u16 index, u16 data);
diff -uBbrN linux-2.5.38/drivers/video/sis/sisfb.h linux-ahu/drivers/video/sis/sisfb.h
--- linux-2.5.38/drivers/video/sis/sisfb.h Sun Sep 22 23:01:26 2002
+++ linux-ahu/drivers/video/sis/sisfb.h Thu Jan 1 01:00:00 1970
@@ -1,153 +0,0 @@
-#ifndef _LINUX_SISFB
-#define _LINUX_SISFB
-
-#include <asm/ioctl.h>
-#include <asm/types.h>
-
-#define DISPTYPE_CRT1 0x00000008L
-#define DISPTYPE_CRT2 0x00000004L
-#define DISPTYPE_LCD 0x00000002L
-#define DISPTYPE_TV 0x00000001L
-#define DISPTYPE_DISP1 DISPTYPE_CRT1
-#define DISPTYPE_DISP2 (DISPTYPE_CRT2 | DISPTYPE_LCD | DISPTYPE_TV)
-#define DISPMODE_SINGLE 0x00000020L
-#define DISPMODE_MIRROR 0x00000010L
-#define DISPMODE_DUALVIEW 0x00000040L
-
-#define HASVB_NONE 0x00
-#define HASVB_301 0x01
-#define HASVB_LVDS 0x02
-#define HASVB_TRUMPION 0x04
-#define HASVB_LVDS_CHRONTEL 0x10
-#define HASVB_302 0x20
-#define HASVB_303 0x40
-#define HASVB_CHRONTEL 0x80
-
-/* TW: *Never* change the order of the following enum */
-typedef enum _SIS_CHIP_TYPE {
- SIS_VGALegacy = 0,
- SIS_300,
- SIS_630,
- SIS_540,
- SIS_730,
- SIS_315H,
- SIS_315,
- SIS_550,
- SIS_315PRO,
- SIS_640,
- SIS_740,
- SIS_650,
- SIS_330,
- MAX_SIS_CHIP
-} SIS_CHIP_TYPE;
-
-typedef enum _TVTYPE {
- TVMODE_NTSC = 0,
- TVMODE_PAL,
- TVMODE_HIVISION,
- TVMODE_TOTAL
-} SIS_TV_TYPE;
-
-typedef enum _TVPLUGTYPE {
- TVPLUG_Legacy = 0,
- TVPLUG_COMPOSITE,
- TVPLUG_SVIDEO,
- TVPLUG_SCART,
- TVPLUG_TOTAL
-} SIS_TV_PLUG;
-
-struct sis_memreq {
- unsigned long offset;
- unsigned long size;
-};
-
-struct mode_info {
- int bpp;
- int xres;
- int yres;
- int v_xres;
- int v_yres;
- int org_x;
- int org_y;
- unsigned int vrate;
-};
-
-struct ap_data {
- struct mode_info minfo;
- unsigned long iobase;
- unsigned int mem_size;
- unsigned long disp_state;
- SIS_CHIP_TYPE chip;
- unsigned char hasVB;
- SIS_TV_TYPE TV_type;
- SIS_TV_PLUG TV_plug;
- unsigned long version;
- char reserved[256];
-};
-
-struct video_info {
- int chip_id;
- unsigned int video_size;
- unsigned long video_base;
- char *video_vbase;
- unsigned long mmio_base;
- char *mmio_vbase;
- unsigned long vga_base;
- unsigned long mtrr;
- unsigned long heapstart;
-
- int video_bpp;
- int video_width;
- int video_height;
- int video_vwidth;
- int video_vheight;
- int org_x;
- int org_y;
- unsigned int refresh_rate;
-
- unsigned long disp_state;
- unsigned char hasVB;
- unsigned char TV_type;
- unsigned char TV_plug;
-
- SIS_CHIP_TYPE chip;
- unsigned char revision_id;
-
- char reserved[256];
-};
-
-
-/* TW: Addtional IOCTL for communication sisfb <> X driver */
-/* If changing this, vgatypes.h must also be changed (for X driver) */
-
-/* TW: ioctl for identifying and giving some info (esp. memory heap start) */
-#define SISFB_GET_INFO _IOR('n',0xF8,sizeof(__u32))
-
-/* TW: Structure argument for SISFB_GET_INFO ioctl */
-typedef struct _SISFB_INFO sisfb_info, *psisfb_info;
-
-struct _SISFB_INFO {
- unsigned long sisfb_id; /* for identifying sisfb */
-#ifndef SISFB_ID
-#define SISFB_ID 0x53495346 /* Identify myself with 'SISF' */
-#endif
- int chip_id; /* PCI ID of detected chip */
- int memory; /* video memory in KB which sisfb manages */
- int heapstart; /* heap start (= sisfb "mem" argument) in KB */
- unsigned char fbvidmode; /* current sisfb mode */
-
- unsigned char sisfb_version;
- unsigned char sisfb_revision;
- unsigned char sisfb_patchlevel;
-
- char reserved[253]; /* for future use */
-};
-
-#ifdef __KERNEL__
-extern struct video_info ivideo;
-
-extern void sis_malloc(struct sis_memreq *req);
-extern void sis_free(unsigned long base);
-extern void sis_dispinfo(struct ap_data *rec);
-#endif
-#endif
diff -uBbrN linux-2.5.38/include/linux/sisfb.h linux-ahu/include/linux/sisfb.h
--- linux-2.5.38/include/linux/sisfb.h Wed Jul 17 01:49:27 2002
+++ linux-ahu/include/linux/sisfb.h Fri Sep 20 18:04:55 2002
@@ -1,6 +1,9 @@
#ifndef _LINUX_SISFB
#define _LINUX_SISFB
+#include <asm/ioctl.h>
+#include <asm/types.h>
+
#define DISPTYPE_CRT1 0x00000008L
#define DISPTYPE_CRT2 0x00000004L
#define DISPTYPE_LCD 0x00000002L
@@ -20,6 +23,7 @@
#define HASVB_303 0x40
#define HASVB_CHRONTEL 0x80
+/* TW: *Never* change the order of the following enum */
typedef enum _SIS_CHIP_TYPE {
SIS_VGALegacy = 0,
SIS_300,
@@ -32,6 +36,7 @@
SIS_315PRO,
SIS_640,
SIS_740,
+ SIS_650,
SIS_330,
MAX_SIS_CHIP
} SIS_CHIP_TYPE;
@@ -88,6 +93,8 @@
unsigned long mmio_base;
char *mmio_vbase;
unsigned long vga_base;
+ unsigned long mtrr;
+ unsigned long heapstart;
int video_bpp;
int video_width;
@@ -107,6 +114,33 @@
unsigned char revision_id;
char reserved[256];
+};
+
+
+/* TW: Addtional IOCTL for communication sisfb <> X driver */
+/* If changing this, vgatypes.h must also be changed (for X driver) */
+
+/* TW: ioctl for identifying and giving some info (esp. memory heap start) */
+#define SISFB_GET_INFO _IOR('n',0xF8,sizeof(__u32))
+
+/* TW: Structure argument for SISFB_GET_INFO ioctl */
+typedef struct _SISFB_INFO sisfb_info, *psisfb_info;
+
+struct _SISFB_INFO {
+ unsigned long sisfb_id; /* for identifying sisfb */
+#ifndef SISFB_ID
+#define SISFB_ID 0x53495346 /* Identify myself with 'SISF' */
+#endif
+ int chip_id; /* PCI ID of detected chip */
+ int memory; /* video memory in KB which sisfb manages */
+ int heapstart; /* heap start (= sisfb "mem" argument) in KB */
+ unsigned char fbvidmode; /* current sisfb mode */
+
+ unsigned char sisfb_version;
+ unsigned char sisfb_revision;
+ unsigned char sisfb_patchlevel;
+
+ char reserved[253]; /* for future use */
};
#ifdef __KERNEL__
--
http://www.PowerDNS.com Versatile DNS Software & Services
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Bert,
thanks, but: This is not a proper fix. The disp-structure will be
removed soon, and so will the high level console acceleration stuff. It
might be alright for 2.5.38, but I will not include this in my current
driver. (And moving sisfb.h away from the kernel headers will break user
land applications)
Thomas
bert hubert wrote:
>
> Thomas, James, list,
>
> The FB API is still not entirely stable according to Thomas and James but I
> really want to get my laptop working with 2.5 and X. 2.5.38 has new sisfb
> code that actually works but it is not quite ready for the current FB API,
> and does not compile.
>
> This patch is the best I can do right now in fixing that. It compiles, links
> and boots and shows a penguin logo, but it does not run X.
>
> When starting X it says:
> sisfb: Change mode to 1024x768x16-60Hz
> sisfb: CRT2 type is LCD
> sisfb: (LCDInfo = 0xe9 LCDResInfo = 0x2 LCDTypeInfo = 0xe)
>
> X says:
>
> mmap fbmem: Invalid argument
>
> The diff moves a file around, which is why it is pretty large. The meat is
> in the first file.
>
> diff -uBbrN linux-2.5.38/drivers/video/sis/sis_main.c linux-ahu/drivers/video/sis/sis_main.c
> --- linux-2.5.38/drivers/video/sis/sis_main.c Sun Sep 22 23:02:10 2002
> +++ linux-ahu/drivers/video/sis/sis_main.c Sun Sep 22 22:49:28 2002
> @@ -646,11 +646,19 @@
> return 0;
> }
>
> +static struct fb_fix_screeninfo sisfb_fix __initdata = {
> + .id = "SIS VGA",
> + .type = FB_TYPE_PACKED_PIXELS,
> + .accel = FB_ACCEL_SIS_GLAMOUR,
> +};
> +
> +
> static void sisfb_set_disp(int con, struct fb_var_screeninfo *var)
> {
> struct fb_fix_screeninfo fix;
> struct display *display;
> struct display_switch *sw;
> + static spinlock_t driver_lock = SPIN_LOCK_UNLOCKED;
> long flags;
>
> if (con >= 0)
> @@ -663,18 +671,20 @@
> #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,23)
> display->screen_base = ivideo.video_vbase;
> #endif
> - display->visual = fix.visual;
> - display->type = fix.type;
> - display->type_aux = fix.type_aux;
> - display->ypanstep = fix.ypanstep;
> - display->ywrapstep = fix.ywrapstep;
> - display->line_length = fix.line_length;
> + sisfb_fix.visual = fix.visual;
> + sisfb_fix.type = fix.type;
> + sisfb_fix.type_aux = fix.type_aux;
> + sisfb_fix.ypanstep = fix.ypanstep;
> + sisfb_fix.ywrapstep = fix.ywrapstep;
> + sisfb_fix.line_length = fix.line_length;
> display->next_line = fix.line_length;
> display->can_soft_blank = 0;
> display->inverse = sisfb_inverse;
> display->var = *var;
>
> - save_flags(flags);
> + fb_info.fix=sisfb_fix;
> +
> + spin_lock_irqsave(&driver_lock, flags);
> switch (ivideo.video_bpp) {
> #ifdef FBCON_HAS_CFB8
> case 8:
> @@ -706,7 +716,7 @@
> }
> memcpy(&sisfb_sw, sw, sizeof(*sw));
> display->dispsw = &sisfb_sw;
> - restore_flags(flags);
> + spin_unlock_irqrestore(&driver_lock, flags);
>
> display->scrollmode = SCROLL_YREDRAW;
> sisfb_sw.bmove = fbcon_redraw_bmove;
> @@ -2560,8 +2570,8 @@
>
> static struct fb_ops sisfb_ops = {
> .owner = THIS_MODULE,
> - .fb_get_fix = sisfb_get_fix,
> - .fb_get_var = sisfb_get_var,
> + // .fb_get_fix = sisfb_get_fix,
> + // .fb_get_var = sisfb_get_var,
> .fb_set_var = sisfb_set_var,
> .fb_get_cmap = sisfb_get_cmap,
> .fb_set_cmap = sisfb_set_cmap,
> @@ -2627,7 +2637,7 @@
> return 1;
> }
>
> -static void sisfb_blank(int blank, struct fb_info *info)
> +static int sisfb_blank(int blank, struct fb_info *info)
> {
> u8 reg;
>
> @@ -2641,6 +2651,7 @@
>
> vgawb(CRTC_ADR, 0x17);
> vgawb(CRTC_DATA, reg);
> + return 0;
> }
>
> int sisfb_setup(char *options)
>
> diff -uBbrN linux-2.5.38/drivers/video/sis/sis_main.h linux-ahu/drivers/video/sis/sis_main.h
> --- linux-2.5.38/drivers/video/sis/sis_main.h Sun Sep 22 23:01:26 2002
> +++ linux-ahu/drivers/video/sis/sis_main.h Sun Sep 22 22:42:26 2002
> @@ -717,7 +716,7 @@
> int sisfb_init(void);
> static int sisfb_update_var(int con, struct fb_info *info);
> static int sisfb_switch(int con, struct fb_info *info);
> -static void sisfb_blank(int blank, struct fb_info *info);
> +static int sisfb_blank(int blank, struct fb_info *info);
>
> /* hardware access routines */
> void sisfb_set_reg1(u16 port, u16 index, u16 data);
>
> diff -uBbrN linux-2.5.38/drivers/video/sis/sisfb.h linux-ahu/drivers/video/sis/sisfb.h
> --- linux-2.5.38/drivers/video/sis/sisfb.h Sun Sep 22 23:01:26 2002
> +++ linux-ahu/drivers/video/sis/sisfb.h Thu Jan 1 01:00:00 1970
> @@ -1,153 +0,0 @@
> -#ifndef _LINUX_SISFB
> -#define _LINUX_SISFB
> -
> -#include <asm/ioctl.h>
> -#include <asm/types.h>
> -
> -#define DISPTYPE_CRT1 0x00000008L
> -#define DISPTYPE_CRT2 0x00000004L
> -#define DISPTYPE_LCD 0x00000002L
> -#define DISPTYPE_TV 0x00000001L
> -#define DISPTYPE_DISP1 DISPTYPE_CRT1
> -#define DISPTYPE_DISP2 (DISPTYPE_CRT2 | DISPTYPE_LCD | DISPTYPE_TV)
> -#define DISPMODE_SINGLE 0x00000020L
> -#define DISPMODE_MIRROR 0x00000010L
> -#define DISPMODE_DUALVIEW 0x00000040L
> -
> -#define HASVB_NONE 0x00
> -#define HASVB_301 0x01
> -#define HASVB_LVDS 0x02
> -#define HASVB_TRUMPION 0x04
> -#define HASVB_LVDS_CHRONTEL 0x10
> -#define HASVB_302 0x20
> -#define HASVB_303 0x40
> -#define HASVB_CHRONTEL 0x80
> -
> -/* TW: *Never* change the order of the following enum */
> -typedef enum _SIS_CHIP_TYPE {
> - SIS_VGALegacy = 0,
> - SIS_300,
> - SIS_630,
> - SIS_540,
> - SIS_730,
> - SIS_315H,
> - SIS_315,
> - SIS_550,
> - SIS_315PRO,
> - SIS_640,
> - SIS_740,
> - SIS_650,
> - SIS_330,
> - MAX_SIS_CHIP
> -} SIS_CHIP_TYPE;
> -
> -typedef enum _TVTYPE {
> - TVMODE_NTSC = 0,
> - TVMODE_PAL,
> - TVMODE_HIVISION,
> - TVMODE_TOTAL
> -} SIS_TV_TYPE;
> -
> -typedef enum _TVPLUGTYPE {
> - TVPLUG_Legacy = 0,
> - TVPLUG_COMPOSITE,
> - TVPLUG_SVIDEO,
> - TVPLUG_SCART,
> - TVPLUG_TOTAL
> -} SIS_TV_PLUG;
> -
> -struct sis_memreq {
> - unsigned long offset;
> - unsigned long size;
> -};
> -
> -struct mode_info {
> - int bpp;
> - int xres;
> - int yres;
> - int v_xres;
> - int v_yres;
> - int org_x;
> - int org_y;
> - unsigned int vrate;
> -};
> -
> -struct ap_data {
> - struct mode_info minfo;
> - unsigned long iobase;
> - unsigned int mem_size;
> - unsigned long disp_state;
> - SIS_CHIP_TYPE chip;
> - unsigned char hasVB;
> - SIS_TV_TYPE TV_type;
> - SIS_TV_PLUG TV_plug;
> - unsigned long version;
> - char reserved[256];
> -};
> -
> -struct video_info {
> - int chip_id;
> - unsigned int video_size;
> - unsigned long video_base;
> - char *video_vbase;
> - unsigned long mmio_base;
> - char *mmio_vbase;
> - unsigned long vga_base;
> - unsigned long mtrr;
> - unsigned long heapstart;
> -
> - int video_bpp;
> - int video_width;
> - int video_height;
> - int video_vwidth;
> - int video_vheight;
> - int org_x;
> - int org_y;
> - unsigned int refresh_rate;
> -
> - unsigned long disp_state;
> - unsigned char hasVB;
> - unsigned char TV_type;
> - unsigned char TV_plug;
> -
> - SIS_CHIP_TYPE chip;
> - unsigned char revision_id;
> -
> - char reserved[256];
> -};
> -
> -
> -/* TW: Addtional IOCTL for communication sisfb <> X driver */
> -/* If changing this, vgatypes.h must also be changed (for X driver) */
> -
> -/* TW: ioctl for identifying and giving some info (esp. memory heap start) */
> -#define SISFB_GET_INFO _IOR('n',0xF8,sizeof(__u32))
> -
> -/* TW: Structure argument for SISFB_GET_INFO ioctl */
> -typedef struct _SISFB_INFO sisfb_info, *psisfb_info;
> -
> -struct _SISFB_INFO {
> - unsigned long sisfb_id; /* for identifying sisfb */
> -#ifndef SISFB_ID
> -#define SISFB_ID 0x53495346 /* Identify myself with 'SISF' */
> -#endif
> - int chip_id; /* PCI ID of detected chip */
> - int memory; /* video memory in KB which sisfb manages */
> - int heapstart; /* heap start (= sisfb "mem" argument) in KB */
> - unsigned char fbvidmode; /* current sisfb mode */
> -
> - unsigned char sisfb_version;
> - unsigned char sisfb_revision;
> - unsigned char sisfb_patchlevel;
> -
> - char reserved[253]; /* for future use */
> -};
> -
> -#ifdef __KERNEL__
> -extern struct video_info ivideo;
> -
> -extern void sis_malloc(struct sis_memreq *req);
> -extern void sis_free(unsigned long base);
> -extern void sis_dispinfo(struct ap_data *rec);
> -#endif
> -#endif
>
> diff -uBbrN linux-2.5.38/include/linux/sisfb.h linux-ahu/include/linux/sisfb.h
> --- linux-2.5.38/include/linux/sisfb.h Wed Jul 17 01:49:27 2002
> +++ linux-ahu/include/linux/sisfb.h Fri Sep 20 18:04:55 2002
> @@ -1,6 +1,9 @@
> #ifndef _LINUX_SISFB
> #define _LINUX_SISFB
>
> +#include <asm/ioctl.h>
> +#include <asm/types.h>
> +
> #define DISPTYPE_CRT1 0x00000008L
> #define DISPTYPE_CRT2 0x00000004L
> #define DISPTYPE_LCD 0x00000002L
> @@ -20,6 +23,7 @@
> #define HASVB_303 0x40
> #define HASVB_CHRONTEL 0x80
>
> +/* TW: *Never* change the order of the following enum */
> typedef enum _SIS_CHIP_TYPE {
> SIS_VGALegacy = 0,
> SIS_300,
> @@ -32,6 +36,7 @@
> SIS_315PRO,
> SIS_640,
> SIS_740,
> + SIS_650,
> SIS_330,
> MAX_SIS_CHIP
> } SIS_CHIP_TYPE;
> @@ -88,6 +93,8 @@
> unsigned long mmio_base;
> char *mmio_vbase;
> unsigned long vga_base;
> + unsigned long mtrr;
> + unsigned long heapstart;
>
> int video_bpp;
> int video_width;
> @@ -107,6 +114,33 @@
> unsigned char revision_id;
>
> char reserved[256];
> +};
> +
> +
> +/* TW: Addtional IOCTL for communication sisfb <> X driver */
> +/* If changing this, vgatypes.h must also be changed (for X driver) */
> +
> +/* TW: ioctl for identifying and giving some info (esp. memory heap start) */
> +#define SISFB_GET_INFO _IOR('n',0xF8,sizeof(__u32))
> +
> +/* TW: Structure argument for SISFB_GET_INFO ioctl */
> +typedef struct _SISFB_INFO sisfb_info, *psisfb_info;
> +
> +struct _SISFB_INFO {
> + unsigned long sisfb_id; /* for identifying sisfb */
> +#ifndef SISFB_ID
> +#define SISFB_ID 0x53495346 /* Identify myself with 'SISF' */
> +#endif
> + int chip_id; /* PCI ID of detected chip */
> + int memory; /* video memory in KB which sisfb manages */
> + int heapstart; /* heap start (= sisfb "mem" argument) in KB */
> + unsigned char fbvidmode; /* current sisfb mode */
> +
> + unsigned char sisfb_version;
> + unsigned char sisfb_revision;
> + unsigned char sisfb_patchlevel;
> +
> + char reserved[253]; /* for future use */
> };
>
> #ifdef __KERNEL__
>
>
> --
> http://www.PowerDNS.com Versatile DNS Software & Services
> http://www.tk the dot in .tk
> http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
--
Thomas Winischhofer
Vienna/Austria
mailto:[email protected] *** http://www.winischhofer.net