*/
#include <linux/kernel.h>
#include <linux/sysrq.h>
+#include <linux/slab.h>
#include <linux/fb.h>
#include "drmP.h"
#include "drm_crtc.h"
int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
void *panic_str)
{
- DRM_ERROR("panic occurred, switching back to text console\n");
+ printk(KERN_ERR "panic occurred, switching back to text console\n");
return drm_fb_helper_force_kernel_mode();
return 0;
}
kfree(helper->crtc_info);
}
-int drm_fb_helper_init_crtc_count(struct drm_device *dev,
- struct drm_fb_helper *helper,
- int crtc_count, int max_conn_count)
+int drm_fb_helper_init(struct drm_device *dev,
+ struct drm_fb_helper *fb_helper,
+ int crtc_count, int max_conn_count)
{
struct drm_crtc *crtc;
int ret = 0;
int i;
- INIT_LIST_HEAD(&helper->kernel_fb_list);
- helper->dev = dev;
- helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
- if (!helper->crtc_info)
+ fb_helper->dev = dev;
+
+ INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
+
+ fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
+ if (!fb_helper->crtc_info)
return -ENOMEM;
- helper->crtc_count = crtc_count;
- helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
- if (!helper->connector_info) {
- kfree(helper->crtc_info);
+ fb_helper->crtc_count = crtc_count;
+ fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL);
+ if (!fb_helper->connector_info) {
+ kfree(fb_helper->crtc_info);
return -ENOMEM;
}
- helper->connector_count = 0;
+ fb_helper->connector_count = 0;
for (i = 0; i < crtc_count; i++) {
- helper->crtc_info[i].mode_set.connectors =
+ fb_helper->crtc_info[i].mode_set.connectors =
kcalloc(max_conn_count,
sizeof(struct drm_connector *),
GFP_KERNEL);
- if (!helper->crtc_info[i].mode_set.connectors) {
+ if (!fb_helper->crtc_info[i].mode_set.connectors) {
ret = -ENOMEM;
goto out_free;
}
- helper->crtc_info[i].mode_set.num_connectors = 0;
+ fb_helper->crtc_info[i].mode_set.num_connectors = 0;
}
i = 0;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
- helper->crtc_info[i].crtc_id = crtc->base.id;
- helper->crtc_info[i].mode_set.crtc = crtc;
+ fb_helper->crtc_info[i].crtc_id = crtc->base.id;
+ fb_helper->crtc_info[i].mode_set.crtc = crtc;
i++;
}
- helper->conn_limit = max_conn_count;
+ fb_helper->conn_limit = max_conn_count;
return 0;
out_free:
- drm_fb_helper_crtc_free(helper);
+ drm_fb_helper_crtc_free(fb_helper);
return -ENOMEM;
}
-EXPORT_SYMBOL(drm_fb_helper_init_crtc_count);
+EXPORT_SYMBOL(drm_fb_helper_init);
+
+void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
+{
+ if (!list_empty(&fb_helper->kernel_fb_list)) {
+ list_del(&fb_helper->kernel_fb_list);
+ if (list_empty(&kernel_fb_helper_list)) {
+ printk(KERN_INFO "drm: unregistered panic notifier\n");
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &paniced);
+ unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
+ }
+ }
+
+ drm_fb_helper_crtc_free(fb_helper);
+
+}
+EXPORT_SYMBOL(drm_fb_helper_fini);
static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, u16 regno, struct fb_info *info)
}
EXPORT_SYMBOL(drm_fb_helper_setcmap);
-int drm_fb_helper_setcolreg(unsigned regno,
- unsigned red,
- unsigned green,
- unsigned blue,
- unsigned transp,
- struct fb_info *info)
-{
- struct drm_fb_helper *fb_helper = info->par;
- struct drm_crtc *crtc;
- struct drm_crtc_helper_funcs *crtc_funcs;
- int i;
- int ret;
-
- if (regno > 255)
- return 1;
-
- for (i = 0; i < fb_helper->crtc_count; i++) {
- crtc = fb_helper->crtc_info[i].mode_set.crtc;
- crtc_funcs = crtc->helper_private;
-
- ret = setcolreg(crtc, red, green, blue, regno, info);
- if (ret)
- return ret;
-
- crtc_funcs->load_lut(crtc);
- }
- return 0;
-}
-EXPORT_SYMBOL(drm_fb_helper_setcolreg);
-
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
}
}
mutex_unlock(&dev->mode_config.mutex);
+
+ if (fb_helper->delayed_hotplug) {
+ fb_helper->delayed_hotplug = false;
+ drm_fb_helper_hotplug_event(fb_helper);
+ }
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_set_par);
{
int new_fb = 0;
int crtc_count = 0;
- int ret, i;
+ int i;
struct fb_info *info;
struct drm_fb_helper_surface_size sizes;
int gamma_size = 0;
if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {
/* hmm everyone went away - assume VGA cable just fell out
and will come back later. */
- DRM_ERROR("Cannot find any crtc or sizes - going 1024x768\n");
+ DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n");
sizes.fb_width = sizes.surface_width = 1024;
sizes.fb_height = sizes.surface_height = 768;
}
/* push down into drivers */
- new_fb = (*fb_helper->fb_probe)(fb_helper, &sizes);
+ new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
if (new_fb < 0)
return new_fb;
if (new_fb) {
info->var.pixclock = 0;
- ret = fb_alloc_cmap(&info->cmap, gamma_size, 0);
- if (ret)
- return ret;
if (register_framebuffer(info) < 0) {
- fb_dealloc_cmap(&info->cmap);
return -EINVAL;
}
/* Switch back to kernel console on panic */
/* multi card linked list maybe */
if (list_empty(&kernel_fb_helper_list)) {
- printk(KERN_INFO "registered panic notifier\n");
+ printk(KERN_INFO "drm: registered panic notifier\n");
atomic_notifier_chain_register(&panic_notifier_list,
&paniced);
register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
}
EXPORT_SYMBOL(drm_fb_helper_single_fb_probe);
-void drm_fb_helper_free(struct drm_fb_helper *helper)
-{
- if (!list_empty(&helper->kernel_fb_list)) {
- list_del(&helper->kernel_fb_list);
- if (list_empty(&kernel_fb_helper_list)) {
- printk(KERN_INFO "unregistered panic notifier\n");
- atomic_notifier_chain_unregister(&panic_notifier_list,
- &paniced);
- unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
- }
- }
- drm_fb_helper_crtc_free(helper);
- if (helper->fbdev->cmap.len)
- fb_dealloc_cmap(&helper->fbdev->cmap);
-}
-EXPORT_SYMBOL(drm_fb_helper_free);
-
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
uint32_t depth)
{
}
}
+static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
+ struct drm_display_mode **modes,
+ bool *enabled, int width, int height)
+{
+ int count, i, j;
+ bool can_clone = false;
+ struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_display_mode *dmt_mode, *mode;
+
+ /* only contemplate cloning in the single crtc case */
+ if (fb_helper->crtc_count > 1)
+ return false;
+
+ count = 0;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (enabled[i])
+ count++;
+ }
+
+ /* only contemplate cloning if more than one connector is enabled */
+ if (count <= 1)
+ return false;
+
+ /* check the command line or if nothing common pick 1024x768 */
+ can_clone = true;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ if (!enabled[i])
+ continue;
+ fb_helper_conn = fb_helper->connector_info[i];
+ modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height);
+ if (!modes[i]) {
+ can_clone = false;
+ break;
+ }
+ for (j = 0; j < i; j++) {
+ if (!enabled[j])
+ continue;
+ if (!drm_mode_equal(modes[j], modes[i]))
+ can_clone = false;
+ }
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using command line\n");
+ return true;
+ }
+
+ /* try and find a 1024x768 mode on each connector */
+ can_clone = true;
+ dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60);
+
+ for (i = 0; i < fb_helper->connector_count; i++) {
+
+ if (!enabled[i])
+ continue;
+
+ fb_helper_conn = fb_helper->connector_info[i];
+ list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
+ if (drm_mode_equal(mode, dmt_mode))
+ modes[i] = mode;
+ }
+ if (!modes[i])
+ can_clone = false;
+ }
+
+ if (can_clone) {
+ DRM_DEBUG_KMS("can clone using 1024x768\n");
+ return true;
+ }
+ DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
+ return false;
+}
+
static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
struct drm_display_mode **modes,
bool *enabled, int width, int height)
break;
if (o < n) {
- /* ignore cloning for now */
- continue;
+ /* ignore cloning unless only a single crtc */
+ if (fb_helper->crtc_count > 1)
+ continue;
+
+ if (!drm_mode_equal(modes[o], modes[n]))
+ continue;
}
crtcs[n] = crtc;
drm_enable_connectors(fb_helper, enabled);
- ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
- if (!ret)
- DRM_ERROR("Unable to find initial modes\n");
+ ret = drm_target_cloned(fb_helper, modes, enabled, width, height);
+ if (!ret) {
+ ret = drm_target_preferred(fb_helper, modes, enabled, width, height);
+ if (!ret)
+ DRM_ERROR("Unable to find initial modes\n");
+ }
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height);
* RETURNS:
* Zero if everything went ok, nonzero otherwise.
*/
-bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper)
+bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)
{
struct drm_device *dev = fb_helper->dev;
int count = 0;
count = drm_fb_helper_probe_connector_modes(fb_helper,
dev->mode_config.max_width,
dev->mode_config.max_height);
-
/*
* we shouldn't end up with no modes here.
*/
- if (count == 0)
+ if (count == 0) {
printk(KERN_INFO "No connectors reported connected with modes\n");
-
+ }
drm_setup_crtcs(fb_helper);
- return 0;
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
}
EXPORT_SYMBOL(drm_fb_helper_initial_config);
-bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper,
- u32 max_width, u32 max_height)
+bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
{
+ int count = 0;
+ u32 max_width, max_height, bpp_sel;
+ bool bound = false, crtcs_bound = false;
+ struct drm_crtc *crtc;
+
+ if (!fb_helper->fb)
+ return false;
+
+ list_for_each_entry(crtc, &fb_helper->dev->mode_config.crtc_list, head) {
+ if (crtc->fb)
+ crtcs_bound = true;
+ if (crtc->fb == fb_helper->fb)
+ bound = true;
+ }
+
+ if (!bound && crtcs_bound) {
+ fb_helper->delayed_hotplug = true;
+ return false;
+ }
DRM_DEBUG_KMS("\n");
- drm_fb_helper_probe_connector_modes(fb_helper, max_width,
- max_height);
+ max_width = fb_helper->fb->width;
+ max_height = fb_helper->fb->height;
+ bpp_sel = fb_helper->fb->bits_per_pixel;
+ count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
+ max_height);
drm_setup_crtcs(fb_helper);
- return true;
+ return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
}
-EXPORT_SYMBOL(drm_helper_fb_hotplug_event);
+EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff