* DEALINGS IN THE SOFTWARE.
*/
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include "drmP.h"
#define LEVEL_DMT 0
#define LEVEL_GTF 1
-#define LEVEL_CVT 2
+#define LEVEL_GTF2 2
+#define LEVEL_CVT 3
static struct edid_quirk {
char *vendor;
/* Envision Peripherals, Inc. EN-7100e */
{ "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
+ /* Envision EN2028 */
+ { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
/* Funai Electronics PM36B */
{ "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
}
+static void
+find_gtf2(struct detailed_timing *t, void *data)
+{
+ u8 *r = (u8 *)t;
+ if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
+ *(u8 **)data = r;
+}
+
+/* Secondary GTF curve kicks in above some break frequency */
+static int
+drm_gtf2_hbreak(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[12] * 2) : 0;
+}
+
+static int
+drm_gtf2_2c(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[13] : 0;
+}
+
+static int
+drm_gtf2_m(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? (r[15] << 8) + r[14] : 0;
+}
+
+static int
+drm_gtf2_k(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[16] : 0;
+}
+
+static int
+drm_gtf2_2j(struct edid *edid)
+{
+ u8 *r = NULL;
+ drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
+ return r ? r[17] : 0;
+}
+
+/**
+ * standard_timing_level - get std. timing level(CVT/GTF/DMT)
+ * @edid: EDID block to scan
+ */
+static int standard_timing_level(struct edid *edid)
+{
+ if (edid->revision >= 2) {
+ if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
+ return LEVEL_CVT;
+ if (drm_gtf2_hbreak(edid))
+ return LEVEL_GTF2;
+ return LEVEL_GTF;
+ }
+ return LEVEL_DMT;
+}
+
/*
* 0 is reserved. The spec says 0x01 fill for unused timings. Some old
* monitors fill with ascii space (0x20) instead.
* Take the standard timing params (in this case width, aspect, and refresh)
* and convert them into a real mode using CVT/GTF/DMT.
*/
-struct drm_display_mode *drm_mode_std(struct drm_device *dev,
- struct std_timing *t,
- int revision,
- int timing_level)
+static struct drm_display_mode *
+drm_mode_std(struct drm_connector *connector, struct edid *edid,
+ struct std_timing *t, int revision)
{
- struct drm_display_mode *mode;
+ struct drm_device *dev = connector->dev;
+ struct drm_display_mode *m, *mode = NULL;
int hsize, vsize;
int vrefresh_rate;
unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
>> EDID_TIMING_ASPECT_SHIFT;
unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
>> EDID_TIMING_VFREQ_SHIFT;
+ int timing_level = standard_timing_level(edid);
if (bad_std_timing(t->hsize, t->vfreq_aspect))
return NULL;
vsize = 768;
}
+ /*
+ * If this connector already has a mode for this size and refresh
+ * rate (because it came from detailed or CVT info), use that
+ * instead. This way we don't have to guess at interlace or
+ * reduced blanking.
+ */
+ list_for_each_entry(m, &connector->probed_modes, head)
+ if (m->hdisplay == hsize && m->vdisplay == vsize &&
+ drm_mode_vrefresh(m) == vrefresh_rate)
+ return NULL;
+
/* HDTV hack, part 2 */
if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
return mode;
}
- mode = NULL;
/* check whether it can be found in default mode table */
mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate);
if (mode)
case LEVEL_GTF:
mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
break;
+ case LEVEL_GTF2:
+ /*
+ * This is potentially wrong if there's ever a monitor with
+ * more than one ranges section, each claiming a different
+ * secondary GTF curve. Please don't do that.
+ */
+ mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
+ if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
+ kfree(mode);
+ mode = drm_gtf_mode_complex(dev, hsize, vsize,
+ vrefresh_rate, 0, 0,
+ drm_gtf2_m(edid),
+ drm_gtf2_2c(edid),
+ drm_gtf2_k(edid),
+ drm_gtf2_2j(edid));
+ }
+ break;
case LEVEL_CVT:
mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
false);
if (mode->vsync_end > mode->vtotal)
mode->vtotal = mode->vsync_end + 1;
- drm_mode_set_name(mode);
-
drm_mode_do_interlace_quirk(mode, pt);
+ drm_mode_set_name(mode);
+
if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
}
return modes;
}
-/**
- * stanard_timing_level - get std. timing level(CVT/GTF/DMT)
- * @edid: EDID block to scan
- */
-static int standard_timing_level(struct edid *edid)
-{
- if (edid->revision >= 2) {
- if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
- return LEVEL_CVT;
- return LEVEL_GTF;
- }
- return LEVEL_DMT;
-}
/**
* add_standard_modes - get std. modes from EDID and add them
*/
static int add_standard_modes(struct drm_connector *connector, struct edid *edid)
{
- struct drm_device *dev = connector->dev;
int i, modes = 0;
- int timing_level;
-
- timing_level = standard_timing_level(edid);
for (i = 0; i < EDID_STD_TIMINGS; i++) {
- struct std_timing *t = &edid->standard_timings[i];
struct drm_display_mode *newmode;
- newmode = drm_mode_std(dev, &edid->standard_timings[i],
- edid->revision, timing_level);
+ newmode = drm_mode_std(connector, edid,
+ &edid->standard_timings[i],
+ edid->revision);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
return t[9] * 10000 + 5001;
}
-/*
- * XXX fix this for GTF secondary curve formula
- */
static bool
mode_in_range(struct drm_display_mode *mode, struct edid *edid,
struct detailed_timing *timing)
{
int i, modes = 0;
struct detailed_non_pixel *data = &timing->data.other_data;
- int timing_level = standard_timing_level(edid);
int gtf = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
struct drm_display_mode *newmode;
struct drm_device *dev = connector->dev;
struct drm_display_mode *newmode;
std = &data->data.timings[i];
- newmode = drm_mode_std(dev, std, edid->revision,
- timing_level);
+ newmode = drm_mode_std(connector, edid, std,
+ edid->revision);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
git.openpandora.org / pandora-kernel.git / blobdiff