diff options
Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-sysfs.c')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-sysfs.c | 605 |
1 files changed, 0 insertions, 605 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c deleted file mode 100644 index 18fa9e1d0033..000000000000 --- a/drivers/video/omap2/omapfb/omapfb-sysfs.c +++ /dev/null @@ -1,605 +0,0 @@ -/* - * linux/drivers/video/omap2/omapfb-sysfs.c - * - * Copyright (C) 2008 Nokia Corporation - * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> - * - * Some code and ideas taken from drivers/video/omap/ driver - * by Imre Deak. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <linux/fb.h> -#include <linux/sysfs.h> -#include <linux/device.h> -#include <linux/uaccess.h> -#include <linux/platform_device.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/omapfb.h> - -#include <video/omapdss.h> -#include <video/omapvrfb.h> - -#include "omapfb.h" - -static ssize_t show_rotate_type(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - - return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type); -} - -static ssize_t store_rotate_type(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - struct omapfb2_mem_region *rg; - int rot_type; - int r; - - r = kstrtoint(buf, 0, &rot_type); - if (r) - return r; - - if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB) - return -EINVAL; - - if (!lock_fb_info(fbi)) - return -ENODEV; - - r = 0; - if (rot_type == ofbi->rotation_type) - goto out; - - rg = omapfb_get_mem_region(ofbi->region); - - if (rg->size) { - r = -EBUSY; - goto put_region; - } - - ofbi->rotation_type = rot_type; - - /* - * Since the VRAM for this FB is not allocated at the moment we don't - * need to do any further parameter checking at this point. - */ -put_region: - omapfb_put_mem_region(rg); -out: - unlock_fb_info(fbi); - - return r ? r : count; -} - - -static ssize_t show_mirror(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - - return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror); -} - -static ssize_t store_mirror(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - bool mirror; - int r; - struct fb_var_screeninfo new_var; - - r = strtobool(buf, &mirror); - if (r) - return r; - - if (!lock_fb_info(fbi)) - return -ENODEV; - - ofbi->mirror = mirror; - - omapfb_get_mem_region(ofbi->region); - - memcpy(&new_var, &fbi->var, sizeof(new_var)); - r = check_fb_var(fbi, &new_var); - if (r) - goto out; - memcpy(&fbi->var, &new_var, sizeof(fbi->var)); - - set_fb_fix(fbi); - - r = omapfb_apply_changes(fbi, 0); - if (r) - goto out; - - r = count; -out: - omapfb_put_mem_region(ofbi->region); - - unlock_fb_info(fbi); - - return r; -} - -static ssize_t show_overlays(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - struct omapfb2_device *fbdev = ofbi->fbdev; - ssize_t l = 0; - int t; - - if (!lock_fb_info(fbi)) - return -ENODEV; - omapfb_lock(fbdev); - - for (t = 0; t < ofbi->num_overlays; t++) { - struct omap_overlay *ovl = ofbi->overlays[t]; - int ovlnum; - - for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum) - if (ovl == fbdev->overlays[ovlnum]) - break; - - l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", - t == 0 ? "" : ",", ovlnum); - } - - l += snprintf(buf + l, PAGE_SIZE - l, "\n"); - - omapfb_unlock(fbdev); - unlock_fb_info(fbi); - - return l; -} - -static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev, - struct omap_overlay *ovl) -{ - int i, t; - - for (i = 0; i < fbdev->num_fbs; i++) { - struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); - - for (t = 0; t < ofbi->num_overlays; t++) { - if (ofbi->overlays[t] == ovl) - return ofbi; - } - } - - return NULL; -} - -static ssize_t store_overlays(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - struct omapfb2_device *fbdev = ofbi->fbdev; - struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB]; - struct omap_overlay *ovl; - int num_ovls, r, i; - int len; - bool added = false; - - num_ovls = 0; - - len = strlen(buf); - if (buf[len - 1] == '\n') - len = len - 1; - - if (!lock_fb_info(fbi)) - return -ENODEV; - omapfb_lock(fbdev); - - if (len > 0) { - char *p = (char *)buf; - int ovlnum; - - while (p < buf + len) { - int found; - if (num_ovls == OMAPFB_MAX_OVL_PER_FB) { - r = -EINVAL; - goto out; - } - - ovlnum = simple_strtoul(p, &p, 0); - if (ovlnum > fbdev->num_overlays) { - r = -EINVAL; - goto out; - } - - found = 0; - for (i = 0; i < num_ovls; ++i) { - if (ovls[i] == fbdev->overlays[ovlnum]) { - found = 1; - break; - } - } - - if (!found) - ovls[num_ovls++] = fbdev->overlays[ovlnum]; - - p++; - } - } - - for (i = 0; i < num_ovls; ++i) { - struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]); - if (ofbi2 && ofbi2 != ofbi) { - dev_err(fbdev->dev, "overlay already in use\n"); - r = -EINVAL; - goto out; - } - } - - /* detach unused overlays */ - for (i = 0; i < ofbi->num_overlays; ++i) { - int t, found; - - ovl = ofbi->overlays[i]; - - found = 0; - - for (t = 0; t < num_ovls; ++t) { - if (ovl == ovls[t]) { - found = 1; - break; - } - } - - if (found) - continue; - - DBG("detaching %d\n", ofbi->overlays[i]->id); - - omapfb_get_mem_region(ofbi->region); - - omapfb_overlay_enable(ovl, 0); - - if (ovl->manager) - ovl->manager->apply(ovl->manager); - - omapfb_put_mem_region(ofbi->region); - - for (t = i + 1; t < ofbi->num_overlays; t++) { - ofbi->rotation[t-1] = ofbi->rotation[t]; - ofbi->overlays[t-1] = ofbi->overlays[t]; - } - - ofbi->num_overlays--; - i--; - } - - for (i = 0; i < num_ovls; ++i) { - int t, found; - - ovl = ovls[i]; - - found = 0; - - for (t = 0; t < ofbi->num_overlays; ++t) { - if (ovl == ofbi->overlays[t]) { - found = 1; - break; - } - } - - if (found) - continue; - ofbi->rotation[ofbi->num_overlays] = 0; - ofbi->overlays[ofbi->num_overlays++] = ovl; - - added = true; - } - - if (added) { - omapfb_get_mem_region(ofbi->region); - - r = omapfb_apply_changes(fbi, 0); - - omapfb_put_mem_region(ofbi->region); - - if (r) - goto out; - } - - r = count; -out: - omapfb_unlock(fbdev); - unlock_fb_info(fbi); - - return r; -} - -static ssize_t show_overlays_rotate(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - ssize_t l = 0; - int t; - - if (!lock_fb_info(fbi)) - return -ENODEV; - - for (t = 0; t < ofbi->num_overlays; t++) { - l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", - t == 0 ? "" : ",", ofbi->rotation[t]); - } - - l += snprintf(buf + l, PAGE_SIZE - l, "\n"); - - unlock_fb_info(fbi); - - return l; -} - -static ssize_t store_overlays_rotate(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - int num_ovls = 0, r, i; - int len; - bool changed = false; - u8 rotation[OMAPFB_MAX_OVL_PER_FB]; - - len = strlen(buf); - if (buf[len - 1] == '\n') - len = len - 1; - - if (!lock_fb_info(fbi)) - return -ENODEV; - - if (len > 0) { - char *p = (char *)buf; - - while (p < buf + len) { - int rot; - - if (num_ovls == ofbi->num_overlays) { - r = -EINVAL; - goto out; - } - - rot = simple_strtoul(p, &p, 0); - if (rot < 0 || rot > 3) { - r = -EINVAL; - goto out; - } - - if (ofbi->rotation[num_ovls] != rot) - changed = true; - - rotation[num_ovls++] = rot; - - p++; - } - } - - if (num_ovls != ofbi->num_overlays) { - r = -EINVAL; - goto out; - } - - if (changed) { - for (i = 0; i < num_ovls; ++i) - ofbi->rotation[i] = rotation[i]; - - omapfb_get_mem_region(ofbi->region); - - r = omapfb_apply_changes(fbi, 0); - - omapfb_put_mem_region(ofbi->region); - - if (r) - goto out; - - /* FIXME error handling? */ - } - - r = count; -out: - unlock_fb_info(fbi); - - return r; -} - -static ssize_t show_size(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - - return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size); -} - -static ssize_t store_size(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - struct omapfb2_device *fbdev = ofbi->fbdev; - struct omap_dss_device *display = fb2display(fbi); - struct omapfb2_mem_region *rg; - unsigned long size; - int r; - int i; - - r = kstrtoul(buf, 0, &size); - if (r) - return r; - - size = PAGE_ALIGN(size); - - if (!lock_fb_info(fbi)) - return -ENODEV; - - if (display && display->driver->sync) - display->driver->sync(display); - - rg = ofbi->region; - - down_write_nested(&rg->lock, rg->id); - atomic_inc(&rg->lock_count); - - if (atomic_read(&rg->map_count)) { - r = -EBUSY; - goto out; - } - - for (i = 0; i < fbdev->num_fbs; i++) { - struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]); - int j; - - if (ofbi2->region != rg) - continue; - - for (j = 0; j < ofbi2->num_overlays; j++) { - struct omap_overlay *ovl; - ovl = ofbi2->overlays[j]; - if (ovl->is_enabled(ovl)) { - r = -EBUSY; - goto out; - } - } - } - - if (size != ofbi->region->size) { - r = omapfb_realloc_fbmem(fbi, size, ofbi->region->type); - if (r) { - dev_err(dev, "realloc fbmem failed\n"); - goto out; - } - } - - r = count; -out: - atomic_dec(&rg->lock_count); - up_write(&rg->lock); - - unlock_fb_info(fbi); - - return r; -} - -static ssize_t show_phys(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - - return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr); -} - -static ssize_t show_virt(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - struct omapfb_info *ofbi = FB2OFB(fbi); - - return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region->vaddr); -} - -static ssize_t show_upd_mode(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - enum omapfb_update_mode mode; - int r; - - r = omapfb_get_update_mode(fbi, &mode); - - if (r) - return r; - - return snprintf(buf, PAGE_SIZE, "%u\n", (unsigned)mode); -} - -static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct fb_info *fbi = dev_get_drvdata(dev); - unsigned mode; - int r; - - r = kstrtouint(buf, 0, &mode); - if (r) - return r; - - r = omapfb_set_update_mode(fbi, mode); - if (r) - return r; - - return count; -} - -static struct device_attribute omapfb_attrs[] = { - __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type, - store_rotate_type), - __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror), - __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size), - __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays), - __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate, - store_overlays_rotate), - __ATTR(phys_addr, S_IRUGO, show_phys, NULL), - __ATTR(virt_addr, S_IRUGO, show_virt, NULL), - __ATTR(update_mode, S_IRUGO | S_IWUSR, show_upd_mode, store_upd_mode), -}; - -int omapfb_create_sysfs(struct omapfb2_device *fbdev) -{ - int i; - int r; - - DBG("create sysfs for fbs\n"); - for (i = 0; i < fbdev->num_fbs; i++) { - int t; - for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) { - r = device_create_file(fbdev->fbs[i]->dev, - &omapfb_attrs[t]); - - if (r) { - dev_err(fbdev->dev, "failed to create sysfs " - "file\n"); - return r; - } - } - } - - return 0; -} - -void omapfb_remove_sysfs(struct omapfb2_device *fbdev) -{ - int i, t; - - DBG("remove sysfs for fbs\n"); - for (i = 0; i < fbdev->num_fbs; i++) { - for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) - device_remove_file(fbdev->fbs[i]->dev, - &omapfb_attrs[t]); - } -} - |