static int omap_modeset_init(struct drm_device *dev)
{
struct omap_drm_private *priv = dev->dev_private;
struct omap_dss_device *dssdev = NULL;
int num_ovls = dss_feat_get_num_ovls();
int num_mgrs = dss_feat_get_num_mgrs();
int num_crtcs;
int i, id = 0;
drm_mode_config_init(dev);
omap_drm_irq_install(dev);
/*
* We usually don't want to create a CRTC for each manager, at least
* not until we have a way to expose private planes to userspace.
* Otherwise there would not be enough video pipes left for drm planes.
* We use the num_crtc argument to limit the number of crtcs we create.
*/
num_crtcs = min3(num_crtc, num_mgrs, num_ovls);
dssdev = NULL;
for_each_dss_dev(dssdev) {
struct drm_connector *connector;
struct drm_encoder *encoder;
enum omap_channel channel;
struct omap_overlay_manager *mgr;
if (!omapdss_device_is_connected(dssdev))
continue;
encoder = omap_encoder_init(dev, dssdev);
if (!encoder) {
dev_err(dev->dev, "could not create encoder: %s\n",
dssdev->name);
return -ENOMEM;
}
connector = omap_connector_init(dev,
get_connector_type(dssdev), dssdev, encoder);
if (!connector) {
dev_err(dev->dev, "could not create connector: %s\n",
dssdev->name);
return -ENOMEM;
}
BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
priv->encoders[priv->num_encoders++] = encoder;
priv->connectors[priv->num_connectors++] = connector;
drm_mode_connector_attach_encoder(connector, encoder);
/*
* if we have reached the limit of the crtcs we are allowed to
* create, let's not try to look for a crtc for this
* panel/encoder and onwards, we will, of course, populate the
* the possible_crtcs field for all the encoders with the final
* set of crtcs we create
*/
if (id == num_crtcs)
continue;
/*
* get the recommended DISPC channel for this encoder. For now,
* we only try to get create a crtc out of the recommended, the
* other possible channels to which the encoder can connect are
* not considered.
*/
mgr = omapdss_find_mgr_from_display(dssdev);
channel = mgr->id;
/*
* if this channel hasn't already been taken by a previously
* allocated crtc, we create a new crtc for it
*/
if (!channel_used(dev, channel)) {
struct drm_plane *plane;
struct drm_crtc *crtc;
plane = omap_plane_init(dev, id, true);
crtc = omap_crtc_init(dev, plane, channel, id);
BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
priv->crtcs[id] = crtc;
priv->num_crtcs++;
priv->planes[id] = plane;
priv->num_planes++;
id++;
}
}
/*
* we have allocated crtcs according to the need of the panels/encoders,
* adding more crtcs here if needed
*/
for (; id < num_crtcs; id++) {
/* find a free manager for this crtc */
for (i = 0; i < num_mgrs; i++) {
if (!channel_used(dev, i)) {
struct drm_plane *plane;
struct drm_crtc *crtc;
plane = omap_plane_init(dev, id, true);
crtc = omap_crtc_init(dev, plane, i, id);
BUG_ON(priv->num_crtcs >=
ARRAY_SIZE(priv->crtcs));
priv->crtcs[id] = crtc;
priv->num_crtcs++;
priv->planes[id] = plane;
priv->num_planes++;
break;
} else {
continue;
}
}
if (i == num_mgrs) {
/* this shouldn't really happen */
dev_err(dev->dev, "no managers left for crtc\n");
return -ENOMEM;
}
}
/*
* Create normal planes for the remaining overlays:
*/
for (; id < num_ovls; id++) {
struct drm_plane *plane = omap_plane_init(dev, id, false);
BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes));
priv->planes[priv->num_planes++] = plane;
}
for (i = 0; i < priv->num_encoders; i++) {
struct drm_encoder *encoder = priv->encoders[i];
struct omap_dss_device *dssdev =
omap_encoder_get_dssdev(encoder);
struct omap_dss_device *output;
output = omapdss_find_output_from_display(dssdev);
/* figure out which crtc's we can connect the encoder to: */
encoder->possible_crtcs = 0;
for (id = 0; id < priv->num_crtcs; id++) {
struct drm_crtc *crtc = priv->crtcs[id];
enum omap_channel crtc_channel;
crtc_channel = omap_crtc_channel(crtc);
if (output->dispc_channel == crtc_channel) {
encoder->possible_crtcs |= (1 << id);
break;
}
}
omap_dss_put_device(output);
}
DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n",
priv->num_planes, priv->num_crtcs, priv->num_encoders,
priv->num_connectors);
dev->mode_config.min_width = 32;
dev->mode_config.min_height = 32;
/* note: eventually will need some cpu_is_omapXYZ() type stuff here
* to fill in these limits properly on different OMAP generations..
*/
dev->mode_config.max_width = 2048;
dev->mode_config.max_height = 2048;
dev->mode_config.funcs = &omap_mode_config_funcs;
return 0;
}
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_dss_device *display = fb2display(fbi);
struct omap_overlay_manager *mgr;
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;
struct omapfb_color_key color_key;
struct omapfb_ovl_colormode ovl_colormode;
enum omapfb_update_mode update_mode;
int test_num;
struct omapfb_memory_read memory_read;
struct omapfb_vram_info vram_info;
struct omapfb_tearsync_info tearsync_info;
struct omapfb_display_info display_info;
u32 crt;
} p;
int r = 0;
switch (cmd) {
case OMAPFB_SYNC_GFX:
DBG("ioctl SYNC_GFX\n");
if (!display || !display->driver->sync) {
/* DSS1 never returns an error here, so we neither */
/*r = -EINVAL;*/
break;
}
r = display->driver->sync(display);
break;
case OMAPFB_UPDATE_WINDOW_OLD:
DBG("ioctl UPDATE_WINDOW_OLD\n");
if (!display || !display->driver->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:
DBG("ioctl UPDATE_WINDOW\n");
if (!display || !display->driver->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:
DBG("ioctl SETUP_PLANE\n");
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_QUERY_PLANE:
DBG("ioctl QUERY_PLANE\n");
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:
DBG("ioctl SETUP_MEM\n");
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:
DBG("ioctl QUERY_MEM\n");
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:
DBG("ioctl GET_CAPS\n");
if (!display) {
r = -EINVAL;
break;
}
memset(&p.caps, 0, sizeof(p.caps));
if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
r = -EFAULT;
break;
case OMAPFB_GET_OVERLAY_COLORMODE:
DBG("ioctl GET_OVERLAY_COLORMODE\n");
if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
sizeof(p.ovl_colormode))) {
r = -EFAULT;
break;
}
r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
if (r < 0)
break;
if (copy_to_user((void __user *)arg, &p.ovl_colormode,
sizeof(p.ovl_colormode)))
r = -EFAULT;
break;
case OMAPFB_SET_UPDATE_MODE:
DBG("ioctl SET_UPDATE_MODE\n");
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:
DBG("ioctl GET_UPDATE_MODE\n");
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;
case OMAPFB_SET_COLOR_KEY:
DBG("ioctl SET_COLOR_KEY\n");
if (copy_from_user(&p.color_key, (void __user *)arg,
sizeof(p.color_key)))
r = -EFAULT;
else
r = omapfb_set_color_key(fbi, &p.color_key);
break;
case OMAPFB_GET_COLOR_KEY:
DBG("ioctl GET_COLOR_KEY\n");
r = omapfb_get_color_key(fbi, &p.color_key);
if (r)
break;
if (copy_to_user((void __user *)arg, &p.color_key,
sizeof(p.color_key)))
r = -EFAULT;
break;
case FBIO_WAITFORVSYNC:
if (get_user(p.crt, (__u32 __user *)arg)) {
r = -EFAULT;
break;
}
if (p.crt != 0) {
r = -ENODEV;
break;
}
/* FALLTHROUGH */
case OMAPFB_WAITFORVSYNC:
DBG("ioctl WAITFORVSYNC\n");
if (!display) {
r = -EINVAL;
break;
}
mgr = omapdss_find_mgr_from_display(display);
if (!mgr) {
r = -EINVAL;
break;
}
r = mgr->wait_for_vsync(mgr);
break;
case OMAPFB_WAITFORGO:
DBG("ioctl WAITFORGO\n");
if (!display) {
r = -EINVAL;
break;
}
r = omapfb_wait_for_go(fbi);
break;
/* LCD and CTRL tests do the same thing for backward
* compatibility */
case OMAPFB_LCD_TEST:
DBG("ioctl LCD_TEST\n");
if (get_user(p.test_num, (int __user *)arg)) {
r = -EFAULT;
break;
}
if (!display || !display->driver->run_test) {
r = -EINVAL;
break;
}
r = display->driver->run_test(display, p.test_num);
break;
case OMAPFB_CTRL_TEST:
DBG("ioctl CTRL_TEST\n");
if (get_user(p.test_num, (int __user *)arg)) {
r = -EFAULT;
break;
}
if (!display || !display->driver->run_test) {
r = -EINVAL;
break;
}
r = display->driver->run_test(display, p.test_num);
break;
case OMAPFB_MEMORY_READ:
DBG("ioctl MEMORY_READ\n");
if (copy_from_user(&p.memory_read, (void __user *)arg,
sizeof(p.memory_read))) {
r = -EFAULT;
break;
}
r = omapfb_memory_read(fbi, &p.memory_read);
break;
case OMAPFB_GET_VRAM_INFO: {
DBG("ioctl GET_VRAM_INFO\n");
/*
* We don't have the ability to get this vram info anymore.
* Fill in something that should keep the applications working.
*/
p.vram_info.total = SZ_1M * 64;
p.vram_info.free = SZ_1M * 64;
p.vram_info.largest_free_block = SZ_1M * 64;
if (copy_to_user((void __user *)arg, &p.vram_info,
sizeof(p.vram_info)))
r = -EFAULT;
break;
}
case OMAPFB_SET_TEARSYNC: {
DBG("ioctl SET_TEARSYNC\n");
if (copy_from_user(&p.tearsync_info, (void __user *)arg,
sizeof(p.tearsync_info))) {
r = -EFAULT;
break;
}
if (!display || !display->driver->enable_te) {
r = -ENODEV;
break;
}
r = display->driver->enable_te(display,
!!p.tearsync_info.enabled);
break;
}
case OMAPFB_GET_DISPLAY_INFO: {
u16 xres, yres;
DBG("ioctl GET_DISPLAY_INFO\n");
if (display == NULL) {
r = -ENODEV;
break;
}
display->driver->get_resolution(display, &xres, &yres);
p.display_info.xres = xres;
p.display_info.yres = yres;
if (display->driver->get_dimensions) {
u32 w, h;
display->driver->get_dimensions(display, &w, &h);
p.display_info.width = w;
p.display_info.height = h;
} else {
p.display_info.width = 0;
p.display_info.height = 0;
}
if (copy_to_user((void __user *)arg, &p.display_info,
sizeof(p.display_info)))
r = -EFAULT;
break;
}
default:
dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
r = -EINVAL;
}
if (r < 0)
DBG("ioctl failed: %d\n", r);
return r;
}
