static int omapfb_attach_framebuffer(struct fb_info *fbi,
struct omap_overlay *ovl)
{
struct omapfb_info *ofbi = FB2OFB(fbi);
struct omapfb2_device *fbdev = ofbi->fbdev;
int i, t;
int r;
if (ofbi->num_overlays >= OMAPFB_MAX_OVL_PER_FB) {
dev_err(fbdev->dev, "fb has max number of overlays already\n");
return -EINVAL;
}
for (i = 0; i < ofbi->num_overlays; i++) {
if (ofbi->overlays[i] == ovl) {
dev_err(fbdev->dev, "fb already attached to overlay\n");
return -EINVAL;
}
}
for (i = 0; i < fbdev->num_fbs; i++) {
struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
for (t = 0; t < ofbi2->num_overlays; t++) {
if (ofbi2->overlays[t] == ovl) {
dev_err(fbdev->dev, "overlay already in use\n");
return -EINVAL;
}
}
}
ofbi->overlays[ofbi->num_overlays++] = ovl;
/*
if (ovl->manager && ovl->manager->display)
omapfb_adjust_fb(fbi, ovl, 0, 0);
*/
r = omapfb_apply_changes(fbi, 1);
if (r)
return r;
if (ovl->manager)
ovl->manager->apply(ovl->manager);
return 0;
}
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);
int mirror;
int r;
struct fb_var_screeninfo new_var;
r = kstrtoint(buf, 0, &mirror);
if (r)
return r;
mirror = !!mirror;
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 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;
mirror = simple_strtoul(buf, NULL, 0);
if (mirror != 0 && mirror != 1)
return -EINVAL;
if (!lock_fb_info(fbi))
return -ENODEV;
ofbi->mirror = mirror;
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:
unlock_fb_info(fbi);
return r;
}
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 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;
}
int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
{
struct omapfb_info *ofbi = FB2OFB(fbi);
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omap_display *display = fb2display(fbi);
union {
struct omapfb_update_window_old uwnd_o;
struct omapfb_update_window uwnd;
struct omapfb_plane_info plane_info;
struct omapfb_caps caps;
struct omapfb_mem_info mem_info;
enum omapfb_update_mode update_mode;
int test_num;
} p;
int r = 0;
DBG("ioctl %x (%d)\n", cmd, cmd & 0xff);
switch (cmd) {
case OMAPFB_SYNC_GFX:
if (!display || !display->sync) {
/* DSS1 never returns an error here, so we neither */
/*r = -EINVAL;*/
break;
}
omapfb_lock(fbdev);
r = display->sync(display);
omapfb_unlock(fbdev);
break;
case OMAPFB_UPDATE_WINDOW_OLD:
if (!display || !display->update) {
r = -EINVAL;
break;
}
if (copy_from_user(&p.uwnd_o,
(void __user *)arg,
sizeof(p.uwnd_o))) {
r = -EFAULT;
break;
}
r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
p.uwnd_o.width, p.uwnd_o.height);
break;
case OMAPFB_UPDATE_WINDOW:
if (!display || !display->update) {
r = -EINVAL;
break;
}
if (copy_from_user(&p.uwnd, (void __user *)arg,
sizeof(p.uwnd))) {
r = -EFAULT;
break;
}
r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
p.uwnd.width, p.uwnd.height);
break;
case OMAPFB_SETUP_PLANE:
if (copy_from_user(&p.plane_info, (void __user *)arg,
sizeof(p.plane_info)))
r = -EFAULT;
else
r = omapfb_setup_plane(fbi, &p.plane_info);
break;
case OMAPFB_CROP_PLANE:
if (copy_from_user(&p.plane_info, (void __user *)arg,
sizeof(p.plane_info)))
r = -EFAULT;
else
r = omapfb_crop_plane(fbi, &p.plane_info);
break;
case OMAPFB_QUERY_PLANE:
r = omapfb_query_plane(fbi, &p.plane_info);
if (r < 0)
break;
if (copy_to_user((void __user *)arg, &p.plane_info,
sizeof(p.plane_info)))
r = -EFAULT;
break;
case OMAPFB_SETUP_MEM:
if (copy_from_user(&p.mem_info, (void __user *)arg,
sizeof(p.mem_info)))
r = -EFAULT;
else
r = omapfb_setup_mem(fbi, &p.mem_info);
break;
case OMAPFB_QUERY_MEM:
r = omapfb_query_mem(fbi, &p.mem_info);
if (r < 0)
break;
if (copy_to_user((void __user *)arg, &p.mem_info,
sizeof(p.mem_info)))
r = -EFAULT;
break;
case OMAPFB_GET_CAPS:
if (!display) {
r = -EINVAL;
break;
}
p.caps.ctrl = display->caps;
if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
r = -EFAULT;
break;
case OMAPFB_SET_UPDATE_MODE:
if (get_user(p.update_mode, (int __user *)arg))
r = -EFAULT;
else
r = omapfb_set_update_mode(fbi, p.update_mode);
break;
case OMAPFB_GET_UPDATE_MODE:
r = omapfb_get_update_mode(fbi, &p.update_mode);
if (r)
break;
if (put_user(p.update_mode,
(enum omapfb_update_mode __user *)arg))
r = -EFAULT;
break;
/* LCD and CTRL tests do the same thing for backward
* compatibility */
case OMAPFB_LCD_TEST:
if (get_user(p.test_num, (int __user *)arg)) {
r = -EFAULT;
break;
}
if (!display || !display->run_test) {
r = -EINVAL;
break;
}
r = display->run_test(display, p.test_num);
break;
case OMAPFB_CTRL_TEST:
if (get_user(p.test_num, (int __user *)arg)) {
r = -EFAULT;
break;
}
if (!display || !display->run_test) {
r = -EINVAL;
break;
}
r = display->run_test(display, p.test_num);
break;
case OMAPFB_WAIT_FOR_VSYNC:
return omapfb_wait_for_vsync(fbi);
break;
case OMAPFB_VRFB_ROTATE_CCW:
ofbi->rotation_type = OMAPFB_ROT_VRFB;
ofbi->rotation = FB_ROTATE_CCW;
set_fb_fix(fbi);
omapfb_apply_changes(fbi, 0);
break;
default:
DBG("ioctl unhandled\n");
r = -EINVAL;
}
return r;
}
