#include <linux/vga_switcheroo.h>
#include <drm/drmP.h>
#include <drm/drm_edid.h>
+#include <drm/drm_encoder.h>
#include <drm/drm_displayid.h>
+#include "drm_crtc_internal.h"
+
#define version_greater(edid, maj, min) \
(((edid)->version > (maj)) || \
((edid)->version == (maj) && (edid)->revision > (min)))
#define LEVEL_GTF2 2
#define LEVEL_CVT 3
-static struct edid_quirk {
+static const struct edid_quirk {
char vendor[4];
int product_id;
u32 quirks;
csum = drm_edid_block_checksum(raw_edid);
if (csum) {
- if (print_bad_edid) {
- DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
- }
-
if (edid_corrupt)
*edid_corrupt = true;
/* allow CEA to slide through, switches mangle this */
- if (raw_edid[0] != 0x02)
+ if (raw_edid[0] == CEA_EXT) {
+ DRM_DEBUG("EDID checksum is invalid, remainder is %d\n", csum);
+ DRM_DEBUG("Assuming a KVM switch modified the CEA block but left the original checksum\n");
+ } else {
+ if (print_bad_edid)
+ DRM_NOTE("EDID checksum is invalid, remainder is %d\n", csum);
+
goto bad;
+ }
}
/* per-block-type checks */
switch (raw_edid[0]) {
case 0: /* base */
if (edid->version != 1) {
- DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
+ DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);
goto bad;
}
bad:
if (print_bad_edid) {
if (drm_edid_is_zero(raw_edid, EDID_LENGTH)) {
- printk(KERN_ERR "EDID block is all zeroes\n");
+ printk(KERN_NOTICE "EDID block is all zeroes\n");
} else {
- printk(KERN_ERR "Raw EDID:\n");
- print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
- raw_edid, EDID_LENGTH, false);
+ printk(KERN_NOTICE "Raw EDID:\n");
+ print_hex_dump(KERN_NOTICE,
+ " \t", DUMP_PREFIX_NONE, 16, 1,
+ raw_edid, EDID_LENGTH, false);
}
}
return false;
{
struct edid *edid;
- if (!drm_probe_ddc(adapter))
+ if (connector->force == DRM_FORCE_OFF)
+ return NULL;
+
+ if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
return NULL;
edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
*
* Returns true if @vendor is in @edid, false otherwise
*/
-static bool edid_vendor(struct edid *edid, char *vendor)
+static bool edid_vendor(struct edid *edid, const char *vendor)
{
char edid_vendor[3];
*/
static u32 edid_get_quirks(struct edid *edid)
{
- struct edid_quirk *quirk;
+ const struct edid_quirk *quirk;
int i;
for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
/* fix up 1366x768 mode from 1368x768;
* GFT/CVT can't express 1366 width which isn't dividable by 8
*/
-static void fixup_mode_1366x768(struct drm_display_mode *mode)
+void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
{
if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
mode->hdisplay = 1366;
if (!newmode)
return modes;
- fixup_mode_1366x768(newmode);
+ drm_mode_fixup_1366x768(newmode);
if (!mode_in_range(newmode, edid, timing) ||
!valid_inferred_mode(connector, newmode)) {
drm_mode_destroy(dev, newmode);
if (!newmode)
return modes;
- fixup_mode_1366x768(newmode);
+ drm_mode_fixup_1366x768(newmode);
if (!mode_in_range(newmode, edid, timing) ||
!valid_inferred_mode(connector, newmode)) {
drm_mode_destroy(dev, newmode);
connector->video_latency[1] = 0;
connector->audio_latency[1] = 0;
+ if (!edid)
+ return;
+
cea = drm_find_cea_extension(edid);
if (!cea) {
DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
}
EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
+/**
+ * drm_default_rgb_quant_range - default RGB quantization range
+ * @mode: display mode
+ *
+ * Determine the default RGB quantization range for the mode,
+ * as specified in CEA-861.
+ *
+ * Return: The default RGB quantization range for the mode
+ */
+enum hdmi_quantization_range
+drm_default_rgb_quant_range(const struct drm_display_mode *mode)
+{
+ /* All CEA modes other than VIC 1 use limited quantization range. */
+ return drm_match_cea_mode(mode) > 1 ?
+ HDMI_QUANTIZATION_RANGE_LIMITED :
+ HDMI_QUANTIZATION_RANGE_FULL;
+}
+EXPORT_SYMBOL(drm_default_rgb_quant_range);
+
static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
const u8 *hdmi)
{
csum += displayid[i];
}
if (csum) {
- DRM_ERROR("DisplayID checksum invalid, remainder is %d\n", csum);
+ DRM_NOTE("DisplayID checksum invalid, remainder is %d\n", csum);
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
+/**
+ * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
+ * quantization range information
+ * @frame: HDMI AVI infoframe
+ * @mode: DRM display mode
+ * @rgb_quant_range: RGB quantization range (Q)
+ * @rgb_quant_range_selectable: Sink support selectable RGB quantization range (QS)
+ */
+void
+drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
+ const struct drm_display_mode *mode,
+ enum hdmi_quantization_range rgb_quant_range,
+ bool rgb_quant_range_selectable)
+{
+ /*
+ * CEA-861:
+ * "A Source shall not send a non-zero Q value that does not correspond
+ * to the default RGB Quantization Range for the transmitted Picture
+ * unless the Sink indicates support for the Q bit in a Video
+ * Capabilities Data Block."
+ *
+ * HDMI 2.0 recommends sending non-zero Q when it does match the
+ * default RGB quantization range for the mode, even when QS=0.
+ */
+ if (rgb_quant_range_selectable ||
+ rgb_quant_range == drm_default_rgb_quant_range(mode))
+ frame->quantization_range = rgb_quant_range;
+ else
+ frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+
+ /*
+ * CEA-861-F:
+ * "When transmitting any RGB colorimetry, the Source should set the
+ * YQ-field to match the RGB Quantization Range being transmitted
+ * (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
+ * set YQ=1) and the Sink shall ignore the YQ-field."
+ */
+ if (rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
+ frame->ycc_quantization_range =
+ HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+ else
+ frame->ycc_quantization_range =
+ HDMI_YCC_QUANTIZATION_RANGE_FULL;
+}
+EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range);
+
static enum hdmi_3d_structure
s3d_structure_from_display_mode(const struct drm_display_mode *mode)
{
projects / linux-2.6-block.git / blobdiff