Merge branch 'xen/fbdev' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
[safe/jmp/linux-2.6] / drivers / video / amifb.c
index cf8bb67..82bedd7 100644 (file)
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/mm.h>
-#include <linux/tty.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
-#include <linux/config.h>
 #include <linux/interrupt.h>
 #include <linux/fb.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/amigahw.h>
@@ -98,7 +96,7 @@
 #endif
 
 #ifdef DEBUG
-#  define DPRINTK(fmt, args...)        printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
+#  define DPRINTK(fmt, args...)        printk(KERN_DEBUG "%s: " fmt, __func__ , ## args)
 #else
 #  define DPRINTK(fmt, args...)
 #endif
    +----------+---------------------------------------------+----------+-------+
    |          |                ^                            |          |       |
    |          |                |upper_margin                |          |       |
-   |          |                ¥                            |          |       |
+   |          |                v                            |          |       |
    +----------###############################################----------+-------+
    |          #                ^                            #          |       |
    |          #                |                            #          |       |
    |          #                |                            #          |       |
    |          #                |                            #          |       |
    |          #                |                            #          |       |
-   |          #                ¥                            #          |       |
+   |          #                v                            #          |       |
    +----------###############################################----------+-------+
    |          |                ^                            |          |       |
    |          |                |lower_margin                |          |       |
-   |          |                ¥                            |          |       |
+   |          |                v                            |          |       |
    +----------+---------------------------------------------+----------+-------+
    |          |                ^                            |          |       |
    |          |                |vsync_len                   |          |       |
-   |          |                ¥                            |          |       |
+   |          |                v                            |          |       |
    +----------+---------------------------------------------+----------+-------+
 
 
    CCIR -> PAL
    -----------
 
-      - a scanline is 64 µs long, of which 52.48 µs are visible. This is about
+      - a scanline is 64 Âµs long, of which 52.48 Âµs are visible. This is about
         736 visible 70 ns pixels per line.
       - we have 625 scanlines, of which 575 are visible (interlaced); after
         rounding this becomes 576.
    RETMA -> NTSC
    -------------
 
-      - a scanline is 63.5 µs long, of which 53.5 µs are visible.  This is about
+      - a scanline is 63.5 Âµs long, of which 53.5 Âµs are visible.  This is about
         736 visible 70 ns pixels per line.
       - we have 525 scanlines, of which 485 are visible (interlaced); after
         rounding this becomes 484.
@@ -590,6 +588,8 @@ static u_short maxfmode, chipset;
 #define highw(x)       ((u_long)(x)>>16 & 0xffff)
 #define loww(x)                ((u_long)(x) & 0xffff)
 
+#define custom         amiga_custom
+
 #define VBlankOn()     custom.intena = IF_SETCLR|IF_COPER
 #define VBlankOff()    custom.intena = IF_COPER
 
@@ -802,7 +802,7 @@ static u_short ecs_palette[32];
 
 static u_short do_vmode_full = 0;      /* Change the Video Mode */
 static u_short do_vmode_pan = 0;       /* Update the Video Mode */
-static short do_blank = 0;             /* (Un)Blank the Screen (±1) */
+static short do_blank = 0;             /* (Un)Blank the Screen (±1) */
 static u_short do_cursor = 0;          /* Move the Cursor */
 
 
@@ -1129,16 +1129,13 @@ static void amifb_copyarea(struct fb_info *info,
                           const struct fb_copyarea *region);
 static void amifb_imageblit(struct fb_info *info,
                            const struct fb_image *image);
-static int amifb_ioctl(struct inode *inode, struct file *file,
-                      unsigned int cmd, unsigned long arg,
-                      struct fb_info *info);
+static int amifb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg);
 
 
        /*
         * Interface to the low level console driver
         */
 
-int amifb_init(void);
 static void amifb_deinit(void);
 
        /*
@@ -1146,7 +1143,7 @@ static void amifb_deinit(void);
         */
 
 static int flash_cursor(void);
-static irqreturn_t amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp);
+static irqreturn_t amifb_interrupt(int irq, void *dev_id);
 static u_long chipalloc(u_long size);
 static void chipfree(void);
 
@@ -1164,8 +1161,8 @@ static void ami_update_display(void);
 static void ami_init_display(void);
 static void ami_do_blank(void);
 static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix);
-static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data);
-static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data);
+static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data);
+static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data);
 static int ami_get_cursorstate(struct fb_cursorstate *state);
 static int ami_set_cursorstate(struct fb_cursorstate *state);
 static void ami_set_sprite(void);
@@ -1185,7 +1182,6 @@ static struct fb_ops amifb_ops = {
        .fb_fillrect    = amifb_fillrect,
        .fb_copyarea    = amifb_copyarea,
        .fb_imageblit   = amifb_imageblit,
-       .fb_cursor      = soft_cursor,
        .fb_ioctl       = amifb_ioctl,
 };
 
@@ -2051,13 +2047,16 @@ static void amifb_copyarea(struct fb_info *info,
        width = x2 - dx;
        height = y2 - dy;
 
+       if (area->sx + dx < area->dx || area->sy + dy < area->dy)
+               return;
+
        /* update sx,sy */
        sx = area->sx + (dx - area->dx);
        sy = area->sy + (dy - area->dy);
 
        /* the source must be completely inside the virtual screen */
-       if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
-           (sy + height) > info->var.yres_virtual)
+       if (sx + width > info->var.xres_virtual ||
+                       sy + height > info->var.yres_virtual)
                return;
 
        if (dy > sy || (dy == sy && dx > sx)) {
@@ -2160,9 +2159,9 @@ static void amifb_imageblit(struct fb_info *info, const struct fb_image *image)
                        src += pitch;
                }
        } else {
-               c2p(info->screen_base, image->data, dx, dy, width, height,
-                   par->next_line, par->next_plane, image->width,
-                   info->var.bits_per_pixel);
+               c2p_planar(info->screen_base, image->data, dx, dy, width,
+                          height, par->next_line, par->next_plane,
+                          image->width, info->var.bits_per_pixel);
        }
 }
 
@@ -2171,15 +2170,15 @@ static void amifb_imageblit(struct fb_info *info, const struct fb_image *image)
         * Amiga Frame Buffer Specific ioctls
         */
 
-static int amifb_ioctl(struct inode *inode, struct file *file,
-                      unsigned int cmd, unsigned long arg,
-                      struct fb_info *info)
+static int amifb_ioctl(struct fb_info *info,
+                      unsigned int cmd, unsigned long arg)
 {
        union {
                struct fb_fix_cursorinfo fix;
                struct fb_var_cursorinfo var;
                struct fb_cursorstate state;
        } crsr;
+       void __user *argp = (void __user *)arg;
        int i;
 
        switch (cmd) {
@@ -2187,33 +2186,32 @@ static int amifb_ioctl(struct inode *inode, struct file *file,
                        i = ami_get_fix_cursorinfo(&crsr.fix);
                        if (i)
                                return i;
-                       return copy_to_user((void *)arg, &crsr.fix,
+                       return copy_to_user(argp, &crsr.fix,
                                            sizeof(crsr.fix)) ? -EFAULT : 0;
 
                case FBIOGET_VCURSORINFO:
                        i = ami_get_var_cursorinfo(&crsr.var,
-                               ((struct fb_var_cursorinfo *)arg)->data);
+                               ((struct fb_var_cursorinfo __user *)arg)->data);
                        if (i)
                                return i;
-                       return copy_to_user((void *)arg, &crsr.var,
+                       return copy_to_user(argp, &crsr.var,
                                            sizeof(crsr.var)) ? -EFAULT : 0;
 
                case FBIOPUT_VCURSORINFO:
-                       if (copy_from_user(&crsr.var, (void *)arg,
-                                          sizeof(crsr.var)))
+                       if (copy_from_user(&crsr.var, argp, sizeof(crsr.var)))
                                return -EFAULT;
                        return ami_set_var_cursorinfo(&crsr.var,
-                               ((struct fb_var_cursorinfo *)arg)->data);
+                               ((struct fb_var_cursorinfo __user *)arg)->data);
 
                case FBIOGET_CURSORSTATE:
                        i = ami_get_cursorstate(&crsr.state);
                        if (i)
                                return i;
-                       return copy_to_user((void *)arg, &crsr.state,
+                       return copy_to_user(argp, &crsr.state,
                                            sizeof(crsr.state)) ? -EFAULT : 0;
 
                case FBIOPUT_CURSORSTATE:
-                       if (copy_from_user(&crsr.state, (void *)arg,
+                       if (copy_from_user(&crsr.state, argp,
                                           sizeof(crsr.state)))
                                return -EFAULT;
                        return ami_set_cursorstate(&crsr.state);
@@ -2249,7 +2247,7 @@ static inline void chipfree(void)
         * Initialisation
         */
 
-int __init amifb_init(void)
+static int __init amifb_init(void)
 {
        int tag, i, err = 0;
        u_long chipptr;
@@ -2265,7 +2263,7 @@ int __init amifb_init(void)
        amifb_setup(option);
 #endif
        if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_VIDEO))
-               return -ENXIO;
+               return -ENODEV;
 
        /*
         * We request all registers starting from bplpt[0]
@@ -2337,7 +2335,7 @@ default_chipset:
                        strcat(fb_info.fix.id, "Unknown");
                        goto default_chipset;
 #else /* CONFIG_FB_AMIGA_OCS */
-                       err = -ENXIO;
+                       err = -ENODEV;
                        goto amifb_error;
 #endif /* CONFIG_FB_AMIGA_OCS */
                        break;
@@ -2387,6 +2385,9 @@ default_chipset:
                goto amifb_error;
        }
 
+       fb_videomode_to_modelist(ami_modedb, NUM_TOTAL_MODES,
+                                &fb_info.modelist);
+
        round_down_bpp = 0;
        chipptr = chipalloc(fb_info.fix.smem_len+
                            SPRITEMEMSIZE+
@@ -2411,10 +2412,10 @@ default_chipset:
                                                   fb_info.fix.smem_len);
        if (!videomemory) {
                printk("amifb: WARNING! unable to map videomem cached writethrough\n");
-               videomemory = ZTWO_VADDR(fb_info.fix.smem_start);
-       }
+               fb_info.screen_base = (char *)ZTWO_VADDR(fb_info.fix.smem_start);
+       } else
+               fb_info.screen_base = (char *)videomemory;
 
-       fb_info.screen_base = (char *)videomemory;
        memset(dummysprite, 0, DUMMYSPRITEMEMSIZE);
 
        /*
@@ -2436,7 +2437,9 @@ default_chipset:
                goto amifb_error;
        }
 
-       fb_alloc_cmap(&fb_info.cmap, 1<<fb_info.var.bits_per_pixel, 0);
+       err = fb_alloc_cmap(&fb_info.cmap, 1<<fb_info.var.bits_per_pixel, 0);
+       if (err)
+               goto amifb_error;
 
        if (register_framebuffer(&fb_info) < 0) {
                err = -EINVAL;
@@ -2455,8 +2458,11 @@ amifb_error:
 
 static void amifb_deinit(void)
 {
-       fb_dealloc_cmap(&fb_info.cmap);
+       if (fb_info.cmap.len)
+               fb_dealloc_cmap(&fb_info.cmap);
        chipfree();
+       if (videomemory)
+               iounmap((void*)videomemory);
        release_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120);
        custom.dmacon = DMAF_ALL | DMAF_MASTER;
 }
@@ -2496,7 +2502,7 @@ static int flash_cursor(void)
         * VBlank Display Interrupt
         */
 
-static irqreturn_t amifb_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+static irqreturn_t amifb_interrupt(int irq, void *dev_id)
 {
        if (do_vmode_pan || do_vmode_full)
                ami_update_display();
@@ -2908,14 +2914,6 @@ static int ami_decode_var(struct fb_var_screeninfo *var,
        par->crsr.spot_x = par->crsr.spot_y = 0;
        par->crsr.height = par->crsr.width = 0;
 
-#if 0  /* fbmon not done.  uncomment for 2.5.x -brad */
-       if (!fbmon_valid_timings(pixclock[clk_shift], htotal, vtotal,
-                                &fb_info)) {
-               DPRINTK("mode doesn't fit for monitor\n");
-               return -EINVAL;
-       }
-#endif
-
        return 0;
 }
 
@@ -3326,7 +3324,7 @@ static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix)
        return 0;
 }
 
-static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
+static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
 {
        struct amifb_par *par = &currentpar;
        register u_short *lspr, *sspr;
@@ -3348,14 +3346,14 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
        var->yspot = par->crsr.spot_y;
        if (size > var->height*var->width)
                return -ENAMETOOLONG;
-       if (!access_ok(VERIFY_WRITE, (void *)data, size))
+       if (!access_ok(VERIFY_WRITE, data, size))
                return -EFAULT;
        delta = 1<<par->crsr.fmode;
        lspr = lofsprite + (delta<<1);
        if (par->bplcon0 & BPC0_LACE)
                sspr = shfsprite + (delta<<1);
        else
-               sspr = 0;
+               sspr = NULL;
        for (height = (short)var->height-1; height >= 0; height--) {
                bits = 0; words = delta; datawords = 0;
                for (width = (short)var->width-1; width >= 0; width--) {
@@ -3401,7 +3399,7 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
        return 0;
 }
 
-static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
+static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data)
 {
        struct amifb_par *par = &currentpar;
        register u_short *lspr, *sspr;
@@ -3428,7 +3426,7 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
                return -EINVAL;
        if (!var->height)
                return -EINVAL;
-       if (!access_ok(VERIFY_READ, (void *)data, var->width*var->height))
+       if (!access_ok(VERIFY_READ, data, var->width*var->height))
                return -EFAULT;
        delta = 1<<fmode;
        lofsprite = shfsprite = (u_short *)spritememory;
@@ -3443,13 +3441,13 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data)
                if (((var->height+2)<<fmode<<2) > SPRITEMEMSIZE)
                        return -EINVAL;
                memset(lspr, 0, (var->height+2)<<fmode<<2);
-               sspr = 0;
+               sspr = NULL;
        }
        for (height = (short)var->height-1; height >= 0; height--) {
                bits = 16; words = delta; datawords = 0;
                for (width = (short)var->width-1; width >= 0; width--) {
                        unsigned long tdata = 0;
-                       get_user(tdata, (char *)data);
+                       get_user(tdata, data);
                        data++;
 #ifdef __mc68000__
                        asm volatile (
@@ -3797,16 +3795,14 @@ static void ami_rebuild_copper(void)
        }
 }
 
-
-module_init(amifb_init);
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-void cleanup_module(void)
+static void __exit amifb_exit(void)
 {
        unregister_framebuffer(&fb_info);
        amifb_deinit();
        amifb_video_off();
 }
-#endif /* MODULE */
+
+module_init(amifb_init);
+module_exit(amifb_exit);
+
+MODULE_LICENSE("GPL");