From: Christoph Hellwig Date: Sat, 12 Nov 2005 20:11:12 +0000 (-0800) Subject: [SBUSFB]: implement ->compat_ioctl X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9ffb83bcc5c5337f980dc0576bf13ac9bd4fd33d;p=openwrt%2Fstaging%2Fblogic.git [SBUSFB]: implement ->compat_ioctl This patch adds a new function, sbusfb_compat_ioctl() to drivers/video/sbuslib.c and uses it as compat_ioctl in all sbus fb drivers This remove the last per-arch compat ioctl bits in arch/sparc64/kernel/ioctl32.c so it would be nice if people could test if this actually copiles and works and if yes apply it :) Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- diff --git a/arch/sparc64/kernel/ioctl32.c b/arch/sparc64/kernel/ioctl32.c index e62214354bb5..196b208665a2 100644 --- a/arch/sparc64/kernel/ioctl32.c +++ b/arch/sparc64/kernel/ioctl32.c @@ -12,86 +12,10 @@ #define INCLUDES #include "compat_ioctl.c" #include -#include - -/* Use this to get at 32-bit user passed pointers. - * See sys_sparc32.c for description about it. - */ -#define A(__x) compat_ptr(__x) #define CODE #include "compat_ioctl.c" -struct fbcmap32 { - int index; /* first element (0 origin) */ - int count; - u32 red; - u32 green; - u32 blue; -}; - -#define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32) -#define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32) - -static int fbiogetputcmap(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct fbcmap32 __user *argp = (void __user *)arg; - struct fbcmap __user *p = compat_alloc_user_space(sizeof(*p)); - u32 addr; - int ret; - - ret = copy_in_user(p, argp, 2 * sizeof(int)); - ret |= get_user(addr, &argp->red); - ret |= put_user(compat_ptr(addr), &p->red); - ret |= get_user(addr, &argp->green); - ret |= put_user(compat_ptr(addr), &p->green); - ret |= get_user(addr, &argp->blue); - ret |= put_user(compat_ptr(addr), &p->blue); - if (ret) - return -EFAULT; - return sys_ioctl(fd, (cmd == FBIOPUTCMAP32) ? FBIOPUTCMAP_SPARC : FBIOGETCMAP_SPARC, (unsigned long)p); -} - -struct fbcursor32 { - short set; /* what to set, choose from the list above */ - short enable; /* cursor on/off */ - struct fbcurpos pos; /* cursor position */ - struct fbcurpos hot; /* cursor hot spot */ - struct fbcmap32 cmap; /* color map info */ - struct fbcurpos size; /* cursor bit map size */ - u32 image; /* cursor image bits */ - u32 mask; /* cursor mask bits */ -}; - -#define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32) -#define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32) - -static int fbiogscursor(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct fbcursor __user *p = compat_alloc_user_space(sizeof(*p)); - struct fbcursor32 __user *argp = (void __user *)arg; - compat_uptr_t addr; - int ret; - - ret = copy_in_user(p, argp, - 2 * sizeof (short) + 2 * sizeof(struct fbcurpos)); - ret |= copy_in_user(&p->size, &argp->size, sizeof(struct fbcurpos)); - ret |= copy_in_user(&p->cmap, &argp->cmap, 2 * sizeof(int)); - ret |= get_user(addr, &argp->cmap.red); - ret |= put_user(compat_ptr(addr), &p->cmap.red); - ret |= get_user(addr, &argp->cmap.green); - ret |= put_user(compat_ptr(addr), &p->cmap.green); - ret |= get_user(addr, &argp->cmap.blue); - ret |= put_user(compat_ptr(addr), &p->cmap.blue); - ret |= get_user(addr, &argp->mask); - ret |= put_user(compat_ptr(addr), &p->mask); - ret |= get_user(addr, &argp->image); - ret |= put_user(compat_ptr(addr), &p->image); - if (ret) - return -EFAULT; - return sys_ioctl (fd, FBIOSCURSOR, (unsigned long)p); -} - #define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl) #define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL }, #define IOCTL_TABLE_START \ @@ -103,22 +27,6 @@ IOCTL_TABLE_START #include #define DECLARES #include "compat_ioctl.c" -COMPATIBLE_IOCTL(FBIOGTYPE) -COMPATIBLE_IOCTL(FBIOSATTR) -COMPATIBLE_IOCTL(FBIOGATTR) -COMPATIBLE_IOCTL(FBIOSVIDEO) -COMPATIBLE_IOCTL(FBIOGVIDEO) -COMPATIBLE_IOCTL(FBIOGCURSOR32) /* This is not implemented yet. Later it should be converted... */ -COMPATIBLE_IOCTL(FBIOSCURPOS) -COMPATIBLE_IOCTL(FBIOGCURPOS) -COMPATIBLE_IOCTL(FBIOGCURMAX) -/* Little k */ -/* Little v, the video4linux ioctls */ -/* And these ioctls need translation */ -/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */ -HANDLE_IOCTL(FBIOPUTCMAP32, fbiogetputcmap) -HANDLE_IOCTL(FBIOGETCMAP32, fbiogetputcmap) -HANDLE_IOCTL(FBIOSCURSOR32, fbiogscursor) #if 0 HANDLE_IOCTL(RTC32_IRQP_READ, do_rtc_ioctl) HANDLE_IOCTL(RTC32_IRQP_SET, do_rtc_ioctl) diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c index f53bf3ba1278..d3728f60961e 100644 --- a/drivers/video/bw2.c +++ b/drivers/video/bw2.c @@ -51,6 +51,9 @@ static struct fb_ops bw2_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = bw2_mmap, .fb_ioctl = bw2_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; /* OBio addresses for the bwtwo registers */ diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c index 030d4b13b1c2..1bed50f2a276 100644 --- a/drivers/video/cg14.c +++ b/drivers/video/cg14.c @@ -49,6 +49,9 @@ static struct fb_ops cg14_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = cg14_mmap, .fb_ioctl = cg14_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; #define CG14_MCR_INTENABLE_SHIFT 7 diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c index b94eee8c42d5..a1354e7e0513 100644 --- a/drivers/video/cg3.c +++ b/drivers/video/cg3.c @@ -50,6 +50,9 @@ static struct fb_ops cg3_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = cg3_mmap, .fb_ioctl = cg3_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c index 414c4409e924..9debe642fd2f 100644 --- a/drivers/video/cg6.c +++ b/drivers/video/cg6.c @@ -54,6 +54,9 @@ static struct fb_ops cg6_ops = { .fb_sync = cg6_sync, .fb_mmap = cg6_mmap, .fb_ioctl = cg6_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; /* Offset of interesting structures in the OBIO space */ diff --git a/drivers/video/ffb.c b/drivers/video/ffb.c index 04417dc16c2e..2584daec7bbf 100644 --- a/drivers/video/ffb.c +++ b/drivers/video/ffb.c @@ -57,6 +57,9 @@ static struct fb_ops ffb_ops = { .fb_sync = ffb_sync, .fb_mmap = ffb_mmap, .fb_ioctl = ffb_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; /* Register layout and definitions */ diff --git a/drivers/video/leo.c b/drivers/video/leo.c index 84a7fe435bb8..376d4a171ec7 100644 --- a/drivers/video/leo.c +++ b/drivers/video/leo.c @@ -51,6 +51,9 @@ static struct fb_ops leo_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = leo_mmap, .fb_ioctl = leo_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; #define LEO_OFF_LC_SS0_KRN 0x00200000UL diff --git a/drivers/video/p9100.c b/drivers/video/p9100.c index 9aaf65fb623a..18bcda23d2cf 100644 --- a/drivers/video/p9100.c +++ b/drivers/video/p9100.c @@ -48,6 +48,9 @@ static struct fb_ops p9100_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = p9100_mmap, .fb_ioctl = p9100_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; /* P9100 control registers */ diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c index 34f72edba820..646c43f921c5 100644 --- a/drivers/video/sbuslib.c +++ b/drivers/video/sbuslib.c @@ -3,6 +3,7 @@ * Copyright (C) 2003 David S. Miller (davem@redhat.com) */ +#include #include #include #include @@ -182,3 +183,109 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, }; } EXPORT_SYMBOL(sbusfb_ioctl_helper); + +#ifdef CONFIG_COMPAT +struct fbcmap32 { + int index; /* first element (0 origin) */ + int count; + u32 red; + u32 green; + u32 blue; +}; + +#define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32) +#define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32) + +static int fbiogetputcmap(struct file *file, struct fb_info *info, + unsigned int cmd, unsigned long arg) +{ + struct fbcmap32 __user *argp = (void __user *)arg; + struct fbcmap __user *p = compat_alloc_user_space(sizeof(*p)); + u32 addr; + int ret; + + ret = copy_in_user(p, argp, 2 * sizeof(int)); + ret |= get_user(addr, &argp->red); + ret |= put_user(compat_ptr(addr), &p->red); + ret |= get_user(addr, &argp->green); + ret |= put_user(compat_ptr(addr), &p->green); + ret |= get_user(addr, &argp->blue); + ret |= put_user(compat_ptr(addr), &p->blue); + if (ret) + return -EFAULT; + return info->fbops->fb_ioctl(file->f_dentry->d_inode, file, + (cmd == FBIOPUTCMAP32) ? + FBIOPUTCMAP_SPARC : FBIOGETCMAP_SPARC, + (unsigned long)p, info); +} + +struct fbcursor32 { + short set; /* what to set, choose from the list above */ + short enable; /* cursor on/off */ + struct fbcurpos pos; /* cursor position */ + struct fbcurpos hot; /* cursor hot spot */ + struct fbcmap32 cmap; /* color map info */ + struct fbcurpos size; /* cursor bit map size */ + u32 image; /* cursor image bits */ + u32 mask; /* cursor mask bits */ +}; + +#define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32) +#define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32) + +static int fbiogscursor(struct file *file, struct fb_info *info, + unsigned long arg) +{ + struct fbcursor __user *p = compat_alloc_user_space(sizeof(*p)); + struct fbcursor32 __user *argp = (void __user *)arg; + compat_uptr_t addr; + int ret; + + ret = copy_in_user(p, argp, + 2 * sizeof (short) + 2 * sizeof(struct fbcurpos)); + ret |= copy_in_user(&p->size, &argp->size, sizeof(struct fbcurpos)); + ret |= copy_in_user(&p->cmap, &argp->cmap, 2 * sizeof(int)); + ret |= get_user(addr, &argp->cmap.red); + ret |= put_user(compat_ptr(addr), &p->cmap.red); + ret |= get_user(addr, &argp->cmap.green); + ret |= put_user(compat_ptr(addr), &p->cmap.green); + ret |= get_user(addr, &argp->cmap.blue); + ret |= put_user(compat_ptr(addr), &p->cmap.blue); + ret |= get_user(addr, &argp->mask); + ret |= put_user(compat_ptr(addr), &p->mask); + ret |= get_user(addr, &argp->image); + ret |= put_user(compat_ptr(addr), &p->image); + if (ret) + return -EFAULT; + return info->fbops->fb_ioctl(file->f_dentry->d_inode, file, + FBIOSCURSOR, (unsigned long)p, info); +} + +long sbusfb_compat_ioctl(struct file *file, unsigned int cmd, + unsigned long arg, struct fb_info *info) +{ + switch (cmd) { + case FBIOGTYPE: + case FBIOSATTR: + case FBIOGATTR: + case FBIOSVIDEO: + case FBIOGVIDEO: + case FBIOGCURSOR32: /* This is not implemented yet. + Later it should be converted... */ + case FBIOSCURPOS: + case FBIOGCURPOS: + case FBIOGCURMAX: + return info->fbops->fb_ioctl(file->f_dentry->d_inode, + file, cmd, arg, info); + case FBIOPUTCMAP32: + return fbiogetputcmap(file, info, cmd, arg); + case FBIOGETCMAP32: + return fbiogetputcmap(file, info, cmd, arg); + case FBIOSCURSOR32: + return fbiogscursor(file, info, arg); + default: + return -ENOIOCTLCMD; + } +} +EXPORT_SYMBOL(sbusfb_compat_ioctl); +#endif diff --git a/drivers/video/sbuslib.h b/drivers/video/sbuslib.h index a6aa33ba09d6..b470e52ce9e2 100644 --- a/drivers/video/sbuslib.h +++ b/drivers/video/sbuslib.h @@ -20,5 +20,7 @@ extern int sbusfb_mmap_helper(struct sbus_mmap_map *map, int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, struct fb_info *info, int type, int fb_depth, unsigned long fb_size); +long sbusfb_compat_ioctl(struct file *file, unsigned int cmd, + unsigned long arg, struct fb_info *info); #endif /* _SBUSLIB_H */ diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c index 59fff29bc02e..fe4f63f3849d 100644 --- a/drivers/video/tcx.c +++ b/drivers/video/tcx.c @@ -52,6 +52,9 @@ static struct fb_ops tcx_ops = { .fb_imageblit = cfb_imageblit, .fb_mmap = tcx_mmap, .fb_ioctl = tcx_ioctl, +#ifdef CONFIG_COMPAT + .fb_compat_ioctl = sbusfb_compat_ioctl, +#endif }; /* THC definitions */