*/
#include <linux/kernel.h>
#include <linux/sysrq.h>
+#include <linux/slab.h>
#include <linux/fb.h>
+#include <linux/module.h>
#include "drmP.h"
#include "drm_crtc.h"
#include "drm_fb_helper.h"
static LIST_HEAD(kernel_fb_helper_list);
-static struct slow_work_ops output_status_change_ops;
-
/* simple single crtc case helper function */
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
{
}
EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors);
-/**
- * drm_fb_helper_connector_parse_command_line - parse command line for connector
- * @connector - connector to parse line for
- * @mode_option - per connector mode option
- *
- * This parses the connector specific then generic command lines for
- * modes and options to configure the connector.
- *
- * This uses the same parameters as the fb modedb.c, except for extra
- * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
- *
- * enable/enable Digital/disable bit at the end
- */
-static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_connector *fb_helper_conn,
- const char *mode_option)
+static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper)
{
- const char *name;
- unsigned int namelen;
- int res_specified = 0, bpp_specified = 0, refresh_specified = 0;
- unsigned int xres = 0, yres = 0, bpp = 32, refresh = 0;
- int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0;
+ struct drm_fb_helper_connector *fb_helper_conn;
int i;
- enum drm_connector_force force = DRM_FORCE_UNSPECIFIED;
- struct drm_fb_helper_cmdline_mode *cmdline_mode;
- struct drm_connector *connector = fb_helper_conn->connector;
- if (!fb_helper_conn)
- return false;
+ for (i = 0; i < fb_helper->connector_count; i++) {
+ struct drm_cmdline_mode *mode;
+ struct drm_connector *connector;
+ char *option = NULL;
- cmdline_mode = &fb_helper_conn->cmdline_mode;
- if (!mode_option)
- mode_option = fb_mode_option;
+ fb_helper_conn = fb_helper->connector_info[i];
+ connector = fb_helper_conn->connector;
+ mode = &fb_helper_conn->cmdline_mode;
- if (!mode_option) {
- cmdline_mode->specified = false;
- return false;
- }
+ /* do something on return - turn off connector maybe */
+ if (fb_get_options(drm_get_connector_name(connector), &option))
+ continue;
- name = mode_option;
- namelen = strlen(name);
- for (i = namelen-1; i >= 0; i--) {
- switch (name[i]) {
- case '@':
- namelen = i;
- if (!refresh_specified && !bpp_specified &&
- !yres_specified) {
- refresh = simple_strtol(&name[i+1], NULL, 10);
- refresh_specified = 1;
- if (cvt || rb)
- cvt = 0;
- } else
- goto done;
- break;
- case '-':
- namelen = i;
- if (!bpp_specified && !yres_specified) {
- bpp = simple_strtol(&name[i+1], NULL, 10);
- bpp_specified = 1;
- if (cvt || rb)
- cvt = 0;
- } else
- goto done;
- break;
- case 'x':
- if (!yres_specified) {
- yres = simple_strtol(&name[i+1], NULL, 10);
- yres_specified = 1;
- } else
- goto done;
- case '0' ... '9':
- break;
- case 'M':
- if (!yres_specified)
- cvt = 1;
- break;
- case 'R':
- if (!cvt)
- rb = 1;
- break;
- case 'm':
- if (!cvt)
- margins = 1;
- break;
- case 'i':
- if (!cvt)
- interlace = 1;
- break;
- case 'e':
- force = DRM_FORCE_ON;
- break;
- case 'D':
- if ((connector->connector_type != DRM_MODE_CONNECTOR_DVII) &&
- (connector->connector_type != DRM_MODE_CONNECTOR_HDMIB))
- force = DRM_FORCE_ON;
- else
- force = DRM_FORCE_ON_DIGITAL;
- break;
- case 'd':
- force = DRM_FORCE_OFF;
- break;
- default:
- goto done;
- }
- }
- if (i < 0 && yres_specified) {
- xres = simple_strtol(name, NULL, 10);
- res_specified = 1;
- }
-done:
-
- DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
- drm_get_connector_name(connector), xres, yres,
- (refresh) ? refresh : 60, (rb) ? " reduced blanking" :
- "", (margins) ? " with margins" : "", (interlace) ?
- " interlaced" : "");
-
- if (force) {
- const char *s;
- switch (force) {
- case DRM_FORCE_OFF: s = "OFF"; break;
- case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break;
- default:
- case DRM_FORCE_ON: s = "ON"; break;
+ if (drm_mode_parse_command_line_for_connector(option,
+ connector,
+ mode)) {
+ if (mode->force) {
+ const char *s;
+ switch (mode->force) {
+ case DRM_FORCE_OFF: s = "OFF"; break;
+ case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break;
+ default:
+ case DRM_FORCE_ON: s = "ON"; break;
+ }
+
+ DRM_INFO("forcing %s connector %s\n",
+ drm_get_connector_name(connector), s);
+ connector->force = mode->force;
+ }
+
+ DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n",
+ drm_get_connector_name(connector),
+ mode->xres, mode->yres,
+ mode->refresh_specified ? mode->refresh : 60,
+ mode->rb ? " reduced blanking" : "",
+ mode->margins ? " with margins" : "",
+ mode->interlace ? " interlaced" : "");
}
- DRM_INFO("forcing %s connector %s\n",
- drm_get_connector_name(connector), s);
- connector->force = force;
}
+ return 0;
+}
- if (res_specified) {
- cmdline_mode->specified = true;
- cmdline_mode->xres = xres;
- cmdline_mode->yres = yres;
- }
+static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper)
+{
+ uint16_t *r_base, *g_base, *b_base;
+ int i;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ for (i = 0; i < crtc->gamma_size; i++)
+ helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i);
+}
+
+static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc)
+{
+ uint16_t *r_base, *g_base, *b_base;
+
+ r_base = crtc->gamma_store;
+ g_base = r_base + crtc->gamma_size;
+ b_base = g_base + crtc->gamma_size;
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
+}
+
+int drm_fb_helper_debug_enter(struct fb_info *info)
+{
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc_helper_funcs *funcs;
+ int i;
- if (refresh_specified) {
- cmdline_mode->refresh_specified = true;
- cmdline_mode->refresh = refresh;
+ if (list_empty(&kernel_fb_helper_list))
+ return false;
+
+ list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set =
+ &helper->crtc_info[i].mode_set;
+
+ if (!mode_set->crtc->enabled)
+ continue;
+
+ funcs = mode_set->crtc->helper_private;
+ drm_fb_helper_save_lut_atomic(mode_set->crtc, helper);
+ funcs->mode_set_base_atomic(mode_set->crtc,
+ mode_set->fb,
+ mode_set->x,
+ mode_set->y,
+ ENTER_ATOMIC_MODE_SET);
+ }
}
- if (bpp_specified) {
- cmdline_mode->bpp_specified = true;
- cmdline_mode->bpp = bpp;
+ return 0;
+}
+EXPORT_SYMBOL(drm_fb_helper_debug_enter);
+
+/* Find the real fb for a given fb helper CRTC */
+static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_crtc *c;
+
+ list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
+ if (crtc->base.id == c->base.id)
+ return c->fb;
}
- cmdline_mode->rb = rb ? true : false;
- cmdline_mode->cvt = cvt ? true : false;
- cmdline_mode->interlace = interlace ? true : false;
- return true;
+ return NULL;
}
-static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper)
+int drm_fb_helper_debug_leave(struct fb_info *info)
{
- struct drm_fb_helper_connector *fb_helper_conn;
+ struct drm_fb_helper *helper = info->par;
+ struct drm_crtc *crtc;
+ struct drm_crtc_helper_funcs *funcs;
+ struct drm_framebuffer *fb;
int i;
- for (i = 0; i < fb_helper->connector_count; i++) {
- char *option = NULL;
+ for (i = 0; i < helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
+ crtc = mode_set->crtc;
+ funcs = crtc->helper_private;
+ fb = drm_mode_config_fb(crtc);
- fb_helper_conn = fb_helper->connector_info[i];
+ if (!crtc->enabled)
+ continue;
- /* do something on return - turn off connector maybe */
- if (fb_get_options(drm_get_connector_name(fb_helper_conn->connector), &option))
+ if (!fb) {
+ DRM_ERROR("no fb to restore??\n");
continue;
+ }
- drm_fb_helper_connector_parse_command_line(fb_helper_conn, option);
+ drm_fb_helper_restore_lut_atomic(mode_set->crtc);
+ funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
+ crtc->y, LEAVE_ATOMIC_MODE_SET);
}
+
return 0;
}
+EXPORT_SYMBOL(drm_fb_helper_debug_leave);
+
+bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
+{
+ bool error = false;
+ int i, ret;
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+ ret = drm_crtc_helper_set_config(mode_set);
+ if (ret)
+ error = true;
+ }
+ return error;
+}
+EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode);
bool drm_fb_helper_force_kernel_mode(void)
{
- int i = 0;
bool ret, error = false;
struct drm_fb_helper *helper;
return false;
list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
- for (i = 0; i < helper->crtc_count; i++) {
- struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
- ret = drm_crtc_helper_set_config(mode_set);
- if (ret)
- error = true;
- }
+ if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ continue;
+
+ ret = drm_fb_helper_restore_fbdev_mode(helper);
+ if (ret)
+ error = true;
}
return error;
}
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");
+ /*
+ * It's a waste of time and effort to switch back to text console
+ * if the kernel should reboot before panic messages can be seen.
+ */
+ if (panic_timeout < 0)
+ return 0;
+
+ printk(KERN_ERR "panic occurred, switching back to text console\n");
return drm_fb_helper_force_kernel_mode();
- return 0;
}
EXPORT_SYMBOL(drm_fb_helper_panic);
}
static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn);
-static void drm_fb_helper_sysrq(int dummy1, struct tty_struct *dummy3)
+static void drm_fb_helper_sysrq(int dummy1)
{
schedule_work(&drm_fb_helper_restore_work);
}
static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
#endif
-static void drm_fb_helper_on(struct fb_info *info)
-{
- struct drm_fb_helper *fb_helper = info->par;
- struct drm_device *dev = fb_helper->dev;
- struct drm_crtc *crtc;
- struct drm_crtc_helper_funcs *crtc_funcs;
- struct drm_encoder *encoder;
- int i;
-
- /*
- * For each CRTC in this fb, turn the crtc on then,
- * find all associated encoders and turn them on.
- */
- mutex_lock(&dev->mode_config.mutex);
- for (i = 0; i < fb_helper->crtc_count; i++) {
- crtc = fb_helper->crtc_info[i].mode_set.crtc;
- crtc_funcs = crtc->helper_private;
-
- if (!crtc->enabled)
- continue;
-
- crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
-
-
- /* Found a CRTC on this fb, now find encoders */
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- if (encoder->crtc == crtc) {
- struct drm_encoder_helper_funcs *encoder_funcs;
-
- encoder_funcs = encoder->helper_private;
- encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
- }
- }
- }
- mutex_unlock(&dev->mode_config.mutex);
-}
-
-static void drm_fb_helper_off(struct fb_info *info, int dpms_mode)
+static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
struct drm_crtc *crtc;
- struct drm_crtc_helper_funcs *crtc_funcs;
- struct drm_encoder *encoder;
- int i;
+ struct drm_connector *connector;
+ int i, j;
/*
- * For each CRTC in this fb, find all associated encoders
- * and turn them off, then turn off the CRTC.
+ * For each CRTC in this fb, turn the connectors on/off.
*/
mutex_lock(&dev->mode_config.mutex);
for (i = 0; i < fb_helper->crtc_count; i++) {
crtc = fb_helper->crtc_info[i].mode_set.crtc;
- crtc_funcs = crtc->helper_private;
if (!crtc->enabled)
continue;
- /* Found a CRTC on this fb, now find encoders */
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- if (encoder->crtc == crtc) {
- struct drm_encoder_helper_funcs *encoder_funcs;
-
- encoder_funcs = encoder->helper_private;
- encoder_funcs->dpms(encoder, dpms_mode);
- }
+ /* Walk the connectors & encoders on this fb turning them on/off */
+ for (j = 0; j < fb_helper->connector_count; j++) {
+ connector = fb_helper->connector_info[j]->connector;
+ drm_helper_connector_dpms(connector, dpms_mode);
+ drm_connector_property_set_value(connector,
+ dev->mode_config.dpms_property, dpms_mode);
}
- crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
}
mutex_unlock(&dev->mode_config.mutex);
}
switch (blank) {
/* Display: On; HSync: On, VSync: On */
case FB_BLANK_UNBLANK:
- drm_fb_helper_on(info);
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_ON);
break;
/* Display: Off; HSync: On, VSync: On */
case FB_BLANK_NORMAL:
- drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY);
break;
/* Display: Off; HSync: Off, VSync: On */
case FB_BLANK_HSYNC_SUSPEND:
- drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY);
break;
/* Display: Off; HSync: On, VSync: Off */
case FB_BLANK_VSYNC_SUSPEND:
- drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND);
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_SUSPEND);
break;
/* Display: Off; HSync: Off, VSync: Off */
case FB_BLANK_POWERDOWN:
- drm_fb_helper_off(info, DRM_MODE_DPMS_OFF);
+ drm_fb_helper_dpms(info, DRM_MODE_DPMS_OFF);
break;
}
return 0;
for (i = 0; i < helper->connector_count; i++)
kfree(helper->connector_info[i]);
kfree(helper->connector_info);
- for (i = 0; i < helper->crtc_count; i++)
+ for (i = 0; i < helper->crtc_count; i++) {
kfree(helper->crtc_info[i].mode_set.connectors);
+ if (helper->crtc_info[i].mode_set.mode)
+ drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode);
+ }
kfree(helper->crtc_info);
}
int drm_fb_helper_init(struct drm_device *dev,
struct drm_fb_helper *fb_helper,
- int crtc_count, int max_conn_count,
- bool polled)
+ int crtc_count, int max_conn_count)
{
struct drm_crtc *crtc;
int ret = 0;
int i;
fb_helper->dev = dev;
- fb_helper->poll_enabled = polled;
-
- slow_work_register_user(THIS_MODULE);
- delayed_slow_work_init(&fb_helper->output_status_change_slow_work,
- &output_status_change_ops);
INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
i = 0;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
- fb_helper->crtc_info[i].crtc_id = crtc->base.id;
fb_helper->crtc_info[i].mode_set.crtc = crtc;
i++;
}
- fb_helper->conn_limit = max_conn_count;
+
return 0;
out_free:
drm_fb_helper_crtc_free(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 "unregistered panic notifier\n");
+ 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);
- delayed_slow_work_cancel(&fb_helper->output_status_change_slow_work);
- slow_work_unregister_user(THIS_MODULE);
}
EXPORT_SYMBOL(drm_fb_helper_fini);
value = (red << info->var.red.offset) |
(green << info->var.green.offset) |
(blue << info->var.blue.offset);
+ if (info->var.transp.length > 0) {
+ u32 mask = (1 << info->var.transp.length) - 1;
+ mask <<= info->var.transp.offset;
+ value |= mask;
+ }
palette[regno] = value;
return 0;
}
struct drm_crtc_helper_funcs *crtc_funcs;
u16 *red, *green, *blue, *transp;
struct drm_crtc *crtc;
- int i, rc = 0;
+ int i, j, rc = 0;
int start;
for (i = 0; i < fb_helper->crtc_count; i++) {
transp = cmap->transp;
start = cmap->start;
- for (i = 0; i < cmap->len; i++) {
+ for (j = 0; j < cmap->len; j++) {
u16 hred, hgreen, hblue, htransp = 0xffff;
hred = *red++;
}
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)
{
struct drm_framebuffer *fb = fb_helper->fb;
int depth;
- if (var->pixclock != 0)
+ if (var->pixclock != 0 || in_dbg_master())
return -EINVAL;
/* Need to resize the fb object !!! */
- if (var->bits_per_pixel > fb->bits_per_pixel || var->xres > fb->width || var->yres > fb->height) {
+ if (var->bits_per_pixel > fb->bits_per_pixel ||
+ var->xres > fb->width || var->yres > fb->height ||
+ var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb "
- "object %dx%d-%d > %dx%d-%d\n", var->xres, var->yres, var->bits_per_pixel,
+ "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n",
+ var->xres, var->yres, var->bits_per_pixel,
+ var->xres_virtual, var->yres_virtual,
fb->width, fb->height, fb->bits_per_pixel);
return -EINVAL;
}
if (fb_helper->delayed_hotplug) {
fb_helper->delayed_hotplug = false;
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 0);
+ drm_fb_helper_hotplug_event(fb_helper);
}
return 0;
}
/* first up get a count of crtcs now in use and new min/maxes width/heights */
for (i = 0; i < fb_helper->connector_count; i++) {
struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];
- struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ struct drm_cmdline_mode *cmdline_mode;
cmdline_mode = &fb_helper_conn->cmdline_mode;
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;
}
/* 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);
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
FB_VISUAL_TRUECOLOR;
+ info->fix.mmio_start = 0;
+ info->fix.mmio_len = 0;
info->fix.type_aux = 0;
info->fix.xpanstep = 1; /* doing it in hw */
info->fix.ypanstep = 1; /* doing it in hw */
info->var.xres_virtual = fb->width;
info->var.yres_virtual = fb->height;
info->var.bits_per_pixel = fb->bits_per_pixel;
+ info->var.accel_flags = FB_ACCELF_TEXT;
info->var.xoffset = 0;
info->var.yoffset = 0;
info->var.activate = FB_ACTIVATE_NOW;
static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
{
- struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ struct drm_cmdline_mode *cmdline_mode;
cmdline_mode = &fb_connector->cmdline_mode;
return cmdline_mode->specified;
}
static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
int width, int height)
{
- struct drm_fb_helper_cmdline_mode *cmdline_mode;
+ struct drm_cmdline_mode *cmdline_mode;
struct drm_display_mode *mode = NULL;
cmdline_mode = &fb_helper_conn->cmdline_mode;
}
create_mode:
- mode = drm_cvt_mode(fb_helper_conn->connector->dev, cmdline_mode->xres,
- cmdline_mode->yres,
- cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
- cmdline_mode->rb, cmdline_mode->interlace,
- cmdline_mode->margins);
- drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
+ mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev,
+ cmdline_mode);
list_add(&mode->head, &fb_helper_conn->connector->modes);
return mode;
}
}
}
+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);
* we shouldn't end up with no modes here.
*/
if (count == 0) {
- if (fb_helper->poll_enabled) {
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work,
- 5*HZ);
- printk(KERN_INFO "No connectors reported connected with modes - started polling\n");
- } else
- printk(KERN_INFO "No connectors reported connected with modes\n");
+ printk(KERN_INFO "No connectors reported connected with modes\n");
}
drm_setup_crtcs(fb_helper);
}
EXPORT_SYMBOL(drm_fb_helper_initial_config);
-/* we got a hotplug irq - need to update fbcon */
-void drm_helper_fb_hpd_irq_event(struct drm_fb_helper *fb_helper)
-{
- /* if we don't have the fbdev registered yet do nothing */
- if (!fb_helper->fbdev)
- return;
-
- /* schedule a slow work asap */
- delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 0);
-}
-EXPORT_SYMBOL(drm_helper_fb_hpd_irq_event);
-
-bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, bool polled)
+/**
+ * drm_fb_helper_hotplug_event - respond to a hotplug notification by
+ * probing all the outputs attached to the fb.
+ * @fb_helper: the drm_fb_helper
+ *
+ * LOCKING:
+ * Called at runtime, must take mode config lock.
+ *
+ * Scan the connectors attached to the fb_helper and try to put together a
+ * setup after *notification of a change in output configuration.
+ *
+ * RETURNS:
+ * 0 on success and a non-zero error code otherwise.
+ */
+int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
{
+ struct drm_device *dev = fb_helper->dev;
int count = 0;
- int ret;
u32 max_width, max_height, bpp_sel;
+ bool bound = false, crtcs_bound = false;
+ struct drm_crtc *crtc;
if (!fb_helper->fb)
- return false;
+ return 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(crtc, &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;
+ mutex_unlock(&dev->mode_config.mutex);
+ return 0;
+ }
DRM_DEBUG_KMS("\n");
max_width = fb_helper->fb->width;
count = drm_fb_helper_probe_connector_modes(fb_helper, max_width,
max_height);
- if (fb_helper->poll_enabled && !polled) {
- if (count) {
- delayed_slow_work_cancel(&fb_helper->output_status_change_slow_work);
- } else {
- ret = delayed_slow_work_enqueue(&fb_helper->output_status_change_slow_work, 5*HZ);
- }
- }
drm_setup_crtcs(fb_helper);
+ mutex_unlock(&dev->mode_config.mutex);
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);
-/*
- * delayed work queue execution function
- * - check if fbdev is actually in use on the gpu
- * - if not set delayed flag and repoll if necessary
- * - check for connector status change
- * - repoll if 0 modes found
- *- call driver output status changed notifier
+/* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
+ * but the module doesn't depend on any fb console symbols. At least
+ * attempt to load fbcon to avoid leaving the system without a usable console.
*/
-static void output_status_change_execute(struct slow_work *work)
+#if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT)
+static int __init drm_fb_helper_modinit(void)
{
- struct delayed_slow_work *delayed_work = container_of(work, struct delayed_slow_work, work);
- struct drm_fb_helper *fb_helper = container_of(delayed_work, struct drm_fb_helper, output_status_change_slow_work);
- struct drm_connector *connector;
- enum drm_connector_status old_status, status;
- bool repoll, changed = false;
- int ret;
- int i;
- bool bound = false, crtcs_bound = false;
- struct drm_crtc *crtc;
+ const char *name = "fbcon";
+ struct module *fbcon;
- repoll = fb_helper->poll_enabled;
+ mutex_lock(&module_mutex);
+ fbcon = find_module(name);
+ mutex_unlock(&module_mutex);
- /* first of all check the fbcon framebuffer is actually bound to any crtc */
- /* take into account that no crtc at all maybe bound */
- 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 == false && crtcs_bound) {
- fb_helper->delayed_hotplug = true;
- goto requeue;
- }
-
- for (i = 0; i < fb_helper->connector_count; i++) {
- connector = fb_helper->connector_info[i]->connector;
- old_status = connector->status;
- status = connector->funcs->detect(connector);
- if (old_status != status) {
- changed = true;
- }
- if (status == connector_status_connected && repoll) {
- DRM_DEBUG("%s is connected - stop polling\n", drm_get_connector_name(connector));
- repoll = false;
- }
- }
-
- if (changed) {
- if (fb_helper->funcs->fb_output_status_changed)
- fb_helper->funcs->fb_output_status_changed(fb_helper);
- }
-
-requeue:
- if (repoll) {
- ret = delayed_slow_work_enqueue(delayed_work, 5*HZ);
- if (ret)
- DRM_ERROR("delayed enqueue failed %d\n", ret);
- }
+ if (!fbcon)
+ request_module_nowait(name);
+ return 0;
}
-static struct slow_work_ops output_status_change_ops = {
- .execute = output_status_change_execute,
-};
-
+module_init(drm_fb_helper_modinit);
+#endif