vga_switcheroo: initial implementation (v15)

[safe/jmp/linux-2.6] / include / linux / fb.h

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 31527e1..c10163b 100644 (file)
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -123,6 +123,7 @@ struct dentry;
 #define FB_ACCEL_TRIDENT_3DIMAGE 51    /* Trident 3DImage              */
 #define FB_ACCEL_TRIDENT_BLADE3D 52    /* Trident Blade3D              */
 #define FB_ACCEL_TRIDENT_BLADEXP 53    /* Trident BladeXP              */
+#define FB_ACCEL_CIRRUS_ALPINE   53    /* Cirrus Logic 543x/544x/5480  */
 #define FB_ACCEL_NEOMAGIC_NM2070 90    /* NeoMagic NM2070              */
 #define FB_ACCEL_NEOMAGIC_NM2090 91    /* NeoMagic NM2090              */
 #define FB_ACCEL_NEOMAGIC_NM2093 92    /* NeoMagic NM2093              */
@@ -132,6 +133,7 @@ struct dentry;
 #define FB_ACCEL_NEOMAGIC_NM2230 96    /* NeoMagic NM2230              */
 #define FB_ACCEL_NEOMAGIC_NM2360 97    /* NeoMagic NM2360              */
 #define FB_ACCEL_NEOMAGIC_NM2380 98    /* NeoMagic NM2380              */
+#define FB_ACCEL_PXA3XX                 99     /* PXA3xx                       */
 
 #define FB_ACCEL_SAVAGE4        0x80   /* S3 Savage4                   */
 #define FB_ACCEL_SAVAGE3D       0x81   /* S3 Savage3D                  */
@@ -172,8 +174,12 @@ struct fb_fix_screeninfo {
 /* Interpretation of offset for color fields: All offsets are from the right,
  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
  * can use the offset as right argument to <<). A pixel afterwards is a bit
- * stream and is written to video memory as that unmodified. This implies
- * big-endian byte order if bits_per_pixel is greater than 8.
+ * stream and is written to video memory as that unmodified.
+ *
+ * For pseudocolor: offset and length should be the same for all color
+ * components. Offset specifies the position of the least significant bit
+ * of the pallette index in a pixel value. Length indicates the number
+ * of available palette entries (i.e. # of entries = 1 << length).
  */
 struct fb_bitfield {
        __u32 offset;                   /* beginning of bitfield        */
@@ -537,6 +543,8 @@ struct fb_cursor_user {
 #define FB_EVENT_GET_REQ                0x0D
 /*      Unbind from the console if possible */
 #define FB_EVENT_FB_UNBIND              0x0E
+/*      CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
+#define FB_EVENT_REMAP_ALL_CONSOLE      0x0F
 
 struct fb_event {
        struct fb_info *info;
@@ -663,15 +671,12 @@ struct fb_ops {
        /* perform fb specific mmap */
        int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
 
-       /* save current hardware state */
-       void (*fb_save_state)(struct fb_info *info);
-
-       /* restore saved state */
-       void (*fb_restore_state)(struct fb_info *info);
-
        /* get capability given var */
        void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
                            struct fb_var_screeninfo *var);
+
+       /* teardown any resources to do with this framebuffer */
+       void (*fb_destroy)(struct fb_info *info);
 };
 
 #ifdef CONFIG_FB_TILEBLITTING
@@ -760,6 +765,7 @@ struct fb_tile_ops {
         *  takes over; acceleration engine should be in a quiescent state */
 
 /* hints */
+#define FBINFO_VIRTFB          0x0004 /* FB is System RAM, not device. */
 #define FBINFO_PARTIAL_PAN_OK  0x0040 /* otw use pan only for double-buffering */
 #define FBINFO_READS_FAST      0x0080 /* soft-copy faster than rendering */
 
@@ -781,6 +787,8 @@ struct fb_tile_ops {
 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
                                                  from userspace */
 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
+#define FBINFO_MISC_FIRMWARE           0x40000 /* a replaceable firmware
+                                                 inited framebuffer */
 
 /* A driver may set this flag to indicate that it does want a set_par to be
  * called every time when fbcon_switch is executed. The advantage is that with
@@ -809,6 +817,7 @@ struct fb_info {
        int node;
        int flags;
        struct mutex lock;              /* Lock for open/release/ioctl funcs */
+       struct mutex mm_lock;           /* Lock for fb_mmap and smem_* fields */
        struct fb_var_screeninfo var;   /* Current var */
        struct fb_fix_screeninfo fix;   /* Current fix */
        struct fb_monspecs monspecs;    /* Current Monitor specs */
@@ -849,7 +858,12 @@ struct fb_info {
        u32 state;                      /* Hardware state i.e suspend */
        void *fbcon_par;                /* fbcon use-only private area */
        /* From here on everything is device dependent */
-       void *par;      
+       void *par;
+       /* we need the PCI or similiar aperture base/size not
+          smem_start/size as smem_start may just be an object
+          allocated inside the aperture so may not actually overlap */
+       resource_size_t aperture_base;
+       resource_size_t aperture_size;
 };
 
 #ifdef MODULE
@@ -888,7 +902,7 @@ struct fb_info {
 #define fb_writeq sbus_writeq
 #define fb_memset sbus_memset_io
 
-#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__)
+#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
 
 #define fb_readb __raw_readb
 #define fb_readw __raw_readw
@@ -960,15 +974,7 @@ extern struct fb_info *registered_fb[FB_MAX];
 extern int num_registered_fb;
 extern struct class *fb_class;
 
-static inline int lock_fb_info(struct fb_info *info)
-{
-       mutex_lock(&info->lock);
-       if (!info->fbops) {
-               mutex_unlock(&info->lock);
-               return 0;
-       }
-       return 1;
-}
+extern int lock_fb_info(struct fb_info *info);
 
 static inline void unlock_fb_info(struct fb_info *info)
 {