diff options
Diffstat (limited to 'drivers/char/drm/ffb_drv.c')
-rw-r--r-- | drivers/char/drm/ffb_drv.c | 137 |
1 files changed, 66 insertions, 71 deletions
diff --git a/drivers/char/drm/ffb_drv.c b/drivers/char/drm/ffb_drv.c index 1bd0d55ee0f..c13f9abb41e 100644 --- a/drivers/char/drm/ffb_drv.c +++ b/drivers/char/drm/ffb_drv.c @@ -33,13 +33,13 @@ typedef struct _ffb_position_t { static ffb_position_t *ffb_position; -static void get_ffb_type(ffb_dev_priv_t *ffb_priv, int instance) +static void get_ffb_type(ffb_dev_priv_t * ffb_priv, int instance) { volatile unsigned char *strap_bits; unsigned char val; strap_bits = (volatile unsigned char *) - (ffb_priv->card_phys_base + 0x00200000UL); + (ffb_priv->card_phys_base + 0x00200000UL); /* Don't ask, you have to read the value twice for whatever * reason to get correct contents. @@ -61,7 +61,8 @@ static void get_ffb_type(ffb_dev_priv_t *ffb_priv, int instance) break; case (0x1 << 5) | (0x0 << 3): ffb_priv->ffb_type = ffb2_prototype; - printk("ffb%d: Detected FFB2/vertical pre-FCS prototype\n", instance); + printk("ffb%d: Detected FFB2/vertical pre-FCS prototype\n", + instance); break; case (0x1 << 5) | (0x1 << 3): ffb_priv->ffb_type = ffb2_vertical; @@ -81,12 +82,13 @@ static void get_ffb_type(ffb_dev_priv_t *ffb_priv, int instance) break; default: ffb_priv->ffb_type = ffb2_vertical; - printk("ffb%d: Unknown boardID[%08x], assuming FFB2\n", instance, val); + printk("ffb%d: Unknown boardID[%08x], assuming FFB2\n", + instance, val); break; }; } -static void ffb_apply_upa_parent_ranges(int parent, +static void ffb_apply_upa_parent_ranges(int parent, struct linux_prom64_registers *regs) { struct linux_prom64_ranges ranges[PROMREG_MAX]; @@ -97,7 +99,8 @@ static void ffb_apply_upa_parent_ranges(int parent, if (strcmp(name, "upa") != 0) return; - len = prom_getproperty(parent, "ranges", (void *) ranges, sizeof(ranges)); + len = + prom_getproperty(parent, "ranges", (void *)ranges, sizeof(ranges)); if (len <= 0) return; @@ -117,11 +120,11 @@ static void ffb_apply_upa_parent_ranges(int parent, return; } -static int ffb_init_one(drm_device_t *dev, int prom_node, int parent_node, +static int ffb_init_one(drm_device_t * dev, int prom_node, int parent_node, int instance) { - struct linux_prom64_registers regs[2*PROMREG_MAX]; - ffb_dev_priv_t *ffb_priv = (ffb_dev_priv_t *)dev->dev_private; + struct linux_prom64_registers regs[2 * PROMREG_MAX]; + ffb_dev_priv_t *ffb_priv = (ffb_dev_priv_t *) dev->dev_private; int i; ffb_priv->prom_node = prom_node; @@ -132,27 +135,27 @@ static int ffb_init_one(drm_device_t *dev, int prom_node, int parent_node, ffb_apply_upa_parent_ranges(parent_node, ®s[0]); ffb_priv->card_phys_base = regs[0].phys_addr; ffb_priv->regs = (ffb_fbcPtr) - (regs[0].phys_addr + 0x00600000UL); + (regs[0].phys_addr + 0x00600000UL); get_ffb_type(ffb_priv, instance); for (i = 0; i < FFB_MAX_CTXS; i++) ffb_priv->hw_state[i] = NULL; - + return 0; } static drm_map_t *ffb_find_map(struct file *filp, unsigned long off) { - drm_file_t *priv = filp->private_data; - drm_device_t *dev; - drm_map_list_t *r_list; + drm_file_t *priv = filp->private_data; + drm_device_t *dev; + drm_map_list_t *r_list; struct list_head *list; - drm_map_t *map; + drm_map_t *map; if (!priv || (dev = priv->dev) == NULL) return NULL; list_for_each(list, &dev->maplist->head) { - r_list = (drm_map_list_t *)list; + r_list = (drm_map_list_t *) list; map = r_list->map; if (!map) continue; @@ -166,8 +169,7 @@ static drm_map_t *ffb_find_map(struct file *filp, unsigned long off) unsigned long ffb_get_unmapped_area(struct file *filp, unsigned long hint, unsigned long len, - unsigned long pgoff, - unsigned long flags) + unsigned long pgoff, unsigned long flags) { drm_map_t *map = ffb_find_map(filp, pgoff << PAGE_SHIFT); unsigned long addr = -ENOMEM; @@ -175,8 +177,7 @@ unsigned long ffb_get_unmapped_area(struct file *filp, if (!map) return get_unmapped_area(NULL, hint, len, pgoff, flags); - if (map->type == _DRM_FRAME_BUFFER || - map->type == _DRM_REGISTERS) { + if (map->type == _DRM_FRAME_BUFFER || map->type == _DRM_REGISTERS) { #ifdef HAVE_ARCH_FB_UNMAPPED_AREA addr = get_fb_unmapped_area(filp, hint, len, pgoff, flags); #else @@ -187,7 +188,7 @@ unsigned long ffb_get_unmapped_area(struct file *filp, addr = get_unmapped_area(NULL, hint, len + slack, pgoff, flags); if (!(addr & ~PAGE_MASK)) { - unsigned long kvirt = (unsigned long) map->handle; + unsigned long kvirt = (unsigned long)map->handle; if ((kvirt & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) { unsigned long koff, aoff; @@ -207,9 +208,9 @@ unsigned long ffb_get_unmapped_area(struct file *filp, return addr; } -static int ffb_presetup(drm_device_t *dev) +static int ffb_presetup(drm_device_t * dev) { - ffb_dev_priv_t *ffb_priv; + ffb_dev_priv_t *ffb_priv; int ret = 0; int i = 0; @@ -224,14 +225,11 @@ static int ffb_presetup(drm_device_t *dev) memset(ffb_priv, 0, sizeof(*ffb_priv)); dev->dev_private = ffb_priv; - ret = ffb_init_one(dev, - ffb_position[i].node, - ffb_position[i].root, - i); + ret = ffb_init_one(dev, ffb_position[i].node, ffb_position[i].root, i); return ret; } -static void ffb_driver_release(drm_device_t *dev, struct file *filp) +static void ffb_driver_release(drm_device_t * dev, struct file *filp) { ffb_dev_priv_t *fpriv = (ffb_dev_priv_t *) dev->dev_private; int context = _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock); @@ -239,84 +237,80 @@ static void ffb_driver_release(drm_device_t *dev, struct file *filp) idx = context - 1; if (fpriv && - context != DRM_KERNEL_CONTEXT && - fpriv->hw_state[idx] != NULL) { + context != DRM_KERNEL_CONTEXT && fpriv->hw_state[idx] != NULL) { kfree(fpriv->hw_state[idx]); fpriv->hw_state[idx] = NULL; - } + } } -static void ffb_driver_pretakedown(drm_device_t *dev) +static void ffb_driver_pretakedown(drm_device_t * dev) { - if (dev->dev_private) kfree(dev->dev_private); + kfree(dev->dev_private); } -static int ffb_driver_postcleanup(drm_device_t *dev) +static int ffb_driver_postcleanup(drm_device_t * dev) { - if (ffb_position != NULL) kfree(ffb_position); + kfree(ffb_position); return 0; } -static void ffb_driver_kernel_context_switch_unlock(struct drm_device *dev, drm_lock_t *lock) +static void ffb_driver_kernel_context_switch_unlock(struct drm_device *dev, + drm_lock_t * lock) { dev->lock.filp = 0; { __volatile__ unsigned int *plock = &dev->lock.hw_lock->lock; unsigned int old, new, prev, ctx; - + ctx = lock->context; do { - old = *plock; - new = ctx; + old = *plock; + new = ctx; prev = cmpxchg(plock, old, new); } while (prev != old); } wake_up_interruptible(&dev->lock.lock_queue); } -static unsigned long ffb_driver_get_map_ofs(drm_map_t *map) +static unsigned long ffb_driver_get_map_ofs(drm_map_t * map) { return (map->offset & 0xffffffff); } -static unsigned long ffb_driver_get_reg_ofs(drm_device_t *dev) +static unsigned long ffb_driver_get_reg_ofs(drm_device_t * dev) { - ffb_dev_priv_t *ffb_priv = (ffb_dev_priv_t *)dev->dev_private; - - if (ffb_priv) - return ffb_priv->card_phys_base; - - return 0; + ffb_dev_priv_t *ffb_priv = (ffb_dev_priv_t *) dev->dev_private; + + if (ffb_priv) + return ffb_priv->card_phys_base; + + return 0; } -static int postinit( struct drm_device *dev, unsigned long flags ) +static int postinit(struct drm_device *dev, unsigned long flags) { - DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n", - DRIVER_NAME, - DRIVER_MAJOR, - DRIVER_MINOR, - DRIVER_PATCHLEVEL, - DRIVER_DATE, - dev->minor - ); + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", + DRIVER_NAME, + DRIVER_MAJOR, + DRIVER_MINOR, DRIVER_PATCHLEVEL, DRIVER_DATE, dev->minor); return 0; } -static int version( drm_version_t *version ) +static int version(drm_version_t * version) { int len; version->version_major = DRIVER_MAJOR; version->version_minor = DRIVER_MINOR; version->version_patchlevel = DRIVER_PATCHLEVEL; - DRM_COPY( version->name, DRIVER_NAME ); - DRM_COPY( version->date, DRIVER_DATE ); - DRM_COPY( version->desc, DRIVER_DESC ); + DRM_COPY(version->name, DRIVER_NAME); + DRM_COPY(version->date, DRIVER_DATE); + DRM_COPY(version->desc, DRIVER_DESC); return 0; } static drm_ioctl_desc_t ioctls[] = { - + }; static struct drm_driver driver = { @@ -335,14 +329,15 @@ static struct drm_driver driver = { .ioctls = ioctls, .num_ioctls = DRM_ARRAY_SIZE(ioctls), .fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .ioctl = drm_ioctl, - .mmap = drm_mmap, - .poll = drm_poll, - .fasync = drm_fasync, - }, + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .ioctl = drm_ioctl, + .mmap = drm_mmap, + .poll = drm_poll, + .fasync = drm_fasync, + } + , }; static int __init ffb_init(void) @@ -357,6 +352,6 @@ static void __exit ffb_exit(void) module_init(ffb_init); module_exit(ffb_exit); -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights"); |