2,6 → 2,7 |
* Copyright (c) 2006 Luc Verhaegen (quirks list) |
* Copyright (c) 2007-2008 Intel Corporation |
* Jesse Barnes <jesse.barnes@intel.com> |
* Copyright 2010 Red Hat, Inc. |
* |
* DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from |
* FB layer. |
27,16 → 28,20 |
* 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" |
#include "drm_edid.h" |
#include "drm_edid_modes.h" |
|
/* |
* TODO: |
* - support EDID 1.4 (incl. CE blocks) |
*/ |
#define version_greater(edid, maj, min) \ |
(((edid)->version > (maj)) || \ |
((edid)->version == (maj) && (edid)->revision > (min))) |
|
#define EDID_EST_TIMINGS 16 |
#define EDID_STD_TIMINGS 8 |
#define EDID_DETAILED_TIMINGS 4 |
|
/* |
* EDID blocks out in the wild have a variety of bugs, try to collect |
* them here (note that userspace may work around broken monitors first, |
61,10 → 66,18 |
/* use +hsync +vsync for detailed mode */ |
#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6) |
|
struct detailed_mode_closure { |
struct drm_connector *connector; |
struct edid *edid; |
bool preferred; |
u32 quirks; |
int modes; |
}; |
|
#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; |
84,6 → 97,8 |
|
/* 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 | |
106,26 → 121,26 |
{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 }, |
}; |
|
/*** DDC fetch and block validation ***/ |
|
/* Valid EDID header has these bytes */ |
static const u8 edid_header[] = { |
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 |
}; |
|
/** |
* drm_edid_is_valid - sanity check EDID data |
* @edid: EDID data |
* |
* Sanity check the EDID block by looking at the header, the version number |
* and the checksum. Return 0 if the EDID doesn't check out, or 1 if it's |
* valid. |
/* |
* Sanity check the EDID block (base or extension). Return 0 if the block |
* doesn't check out, or 1 if it's valid. |
*/ |
bool drm_edid_is_valid(struct edid *edid) |
static bool |
drm_edid_block_valid(u8 *raw_edid) |
{ |
int i, score = 0; |
int i; |
u8 csum = 0; |
u8 *raw_edid = (u8 *)edid; |
struct edid *edid = (struct edid *)raw_edid; |
|
if (raw_edid[0] == 0x00) { |
int score = 0; |
|
for (i = 0; i < sizeof(edid_header); i++) |
if (raw_edid[i] == edid_header[i]) |
score++; |
134,16 → 149,24 |
else if (score >= 6) { |
DRM_DEBUG("Fixing EDID header, your hardware may be failing\n"); |
memcpy(raw_edid, edid_header, sizeof(edid_header)); |
} else |
} else { |
goto bad; |
} |
} |
|
for (i = 0; i < EDID_LENGTH; i++) |
csum += raw_edid[i]; |
if (csum) { |
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum); |
|
/* allow CEA to slide through, switches mangle this */ |
if (raw_edid[0] != 0x02) |
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); |
goto bad; |
151,7 → 174,12 |
|
if (edid->revision > 4) |
DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n"); |
break; |
|
default: |
break; |
} |
|
return 1; |
|
bad: |
162,9 → 190,191 |
} |
return 0; |
} |
|
/** |
* drm_edid_is_valid - sanity check EDID data |
* @edid: EDID data |
* |
* Sanity-check an entire EDID record (including extensions) |
*/ |
bool drm_edid_is_valid(struct edid *edid) |
{ |
int i; |
u8 *raw = (u8 *)edid; |
|
if (!edid) |
return false; |
|
for (i = 0; i <= edid->extensions; i++) |
if (!drm_edid_block_valid(raw + i * EDID_LENGTH)) |
return false; |
|
return true; |
} |
EXPORT_SYMBOL(drm_edid_is_valid); |
|
#define DDC_ADDR 0x50 |
#define DDC_SEGMENT_ADDR 0x30 |
/** |
* Get EDID information via I2C. |
* |
* \param adapter : i2c device adaptor |
* \param buf : EDID data buffer to be filled |
* \param len : EDID data buffer length |
* \return 0 on success or -1 on failure. |
* |
* Try to fetch EDID information by calling i2c driver function. |
*/ |
static int |
drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf, |
int block, int len) |
{ |
unsigned char start = block * EDID_LENGTH; |
int ret, retries = 5; |
|
/* The core i2c driver will automatically retry the transfer if the |
* adapter reports EAGAIN. However, we find that bit-banging transfers |
* are susceptible to errors under a heavily loaded machine and |
* generate spurious NAKs and timeouts. Retrying the transfer |
* of the individual block a few times seems to overcome this. |
*/ |
do { |
struct i2c_msg msgs[] = { |
{ |
.addr = DDC_ADDR, |
.flags = 0, |
.len = 1, |
.buf = &start, |
}, { |
.addr = DDC_ADDR, |
.flags = I2C_M_RD, |
.len = len, |
.buf = buf, |
} |
}; |
ret = i2c_transfer(adapter, msgs, 2); |
} while (ret != 2 && --retries); |
|
return ret == 2 ? 0 : -1; |
} |
|
static u8 * |
drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) |
{ |
int i, j = 0, valid_extensions = 0; |
u8 *block, *new; |
size_t alloc_size; |
|
if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) |
return NULL; |
|
/* base block fetch */ |
for (i = 0; i < 4; i++) { |
if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH)) |
goto out; |
if (drm_edid_block_valid(block)) |
break; |
} |
if (i == 4) |
goto carp; |
|
/* if there's no extensions, we're done */ |
if (block[0x7e] == 0) |
return block; |
|
alloc_size = (block[0x7e] + 1) * EDID_LENGTH ; |
|
new = kmalloc(alloc_size, GFP_KERNEL); |
|
if (!new) |
goto out; |
|
memcpy(new, block, EDID_LENGTH); |
kfree(block); |
|
block = new; |
|
for (j = 1; j <= block[0x7e]; j++) { |
for (i = 0; i < 4; i++) { |
if (drm_do_probe_ddc_edid(adapter, |
block + (valid_extensions + 1) * EDID_LENGTH, |
j, EDID_LENGTH)) |
goto out; |
if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH)) { |
valid_extensions++; |
break; |
} |
} |
if (i == 4) |
dev_warn(connector->dev->dev, |
"%s: Ignoring invalid EDID block %d.\n", |
drm_get_connector_name(connector), j); |
} |
|
if (valid_extensions != block[0x7e]) { |
block[EDID_LENGTH-1] += block[0x7e] - valid_extensions; |
block[0x7e] = valid_extensions; |
new = kmalloc((valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL); |
if (!new) |
goto out; |
memcpy(new, block, alloc_size); |
kfree(block); |
block = new; |
} |
|
return block; |
|
carp: |
dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n", |
drm_get_connector_name(connector), j); |
|
out: |
kfree(block); |
return NULL; |
} |
|
/** |
* Probe DDC presence. |
* |
* \param adapter : i2c device adaptor |
* \return 1 on success |
*/ |
static bool |
drm_probe_ddc(struct i2c_adapter *adapter) |
{ |
unsigned char out; |
|
return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0); |
} |
|
/** |
* drm_get_edid - get EDID data, if available |
* @connector: connector we're probing |
* @adapter: i2c adapter to use for DDC |
* |
* Poke the given i2c channel to grab EDID data if possible. If found, |
* attach it to the connector. |
* |
* Return edid data or NULL if we couldn't find any. |
*/ |
struct edid *drm_get_edid(struct drm_connector *connector, |
struct i2c_adapter *adapter) |
{ |
struct edid *edid = NULL; |
|
if (drm_probe_ddc(adapter)) |
edid = (struct edid *)drm_do_get_edid(connector, adapter); |
|
connector->display_info.raw_edid = (char *)edid; |
|
return edid; |
|
} |
EXPORT_SYMBOL(drm_get_edid); |
|
/*** EDID parsing ***/ |
|
/** |
* edid_vendor - match a string against EDID's obfuscated vendor field |
* @edid: EDID to match |
* @vendor: vendor string |
208,7 → 418,6 |
#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay) |
#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh)) |
|
|
/** |
* edid_fixup_preferred - set preferred modes based on quirk list |
* @connector: has mode list to fix up |
255,254 → 464,14 |
preferred_mode->type |= DRM_MODE_TYPE_PREFERRED; |
} |
|
/* |
* Add the Autogenerated from the DMT spec. |
* This table is copied from xfree86/modes/xf86EdidModes.c. |
* But the mode with Reduced blank feature is deleted. |
*/ |
static struct drm_display_mode drm_dmt_modes[] = { |
/* 640x350@85Hz */ |
{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672, |
736, 832, 0, 350, 382, 385, 445, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 640x400@85Hz */ |
{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672, |
736, 832, 0, 400, 401, 404, 445, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 720x400@85Hz */ |
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756, |
828, 936, 0, 400, 401, 404, 446, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 640x480@60Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, |
752, 800, 0, 480, 489, 492, 525, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 640x480@72Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664, |
704, 832, 0, 480, 489, 492, 520, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 640x480@75Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656, |
720, 840, 0, 480, 481, 484, 500, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 640x480@85Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696, |
752, 832, 0, 480, 481, 484, 509, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 800x600@56Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824, |
896, 1024, 0, 600, 601, 603, 625, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 800x600@60Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, |
968, 1056, 0, 600, 601, 605, 628, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 800x600@72Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856, |
976, 1040, 0, 600, 637, 643, 666, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 800x600@75Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816, |
896, 1056, 0, 600, 601, 604, 625, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 800x600@85Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832, |
896, 1048, 0, 600, 601, 604, 631, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 848x480@60Hz */ |
{ DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864, |
976, 1088, 0, 480, 486, 494, 517, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1024x768@43Hz, interlace */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032, |
1208, 1264, 0, 768, 768, 772, 817, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | |
DRM_MODE_FLAG_INTERLACE) }, |
/* 1024x768@60Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, |
1184, 1344, 0, 768, 771, 777, 806, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 1024x768@70Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048, |
1184, 1328, 0, 768, 771, 777, 806, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 1024x768@75Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040, |
1136, 1312, 0, 768, 769, 772, 800, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1024x768@85Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072, |
1072, 1376, 0, 768, 769, 772, 808, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1152x864@75Hz */ |
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, |
1344, 1600, 0, 864, 865, 868, 900, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x768@60Hz */ |
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344, |
1472, 1664, 0, 768, 771, 778, 798, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x768@75Hz */ |
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360, |
1488, 1696, 0, 768, 771, 778, 805, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 1280x768@85Hz */ |
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360, |
1496, 1712, 0, 768, 771, 778, 809, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x800@60Hz */ |
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352, |
1480, 1680, 0, 800, 803, 809, 831, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, |
/* 1280x800@75Hz */ |
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360, |
1488, 1696, 0, 800, 803, 809, 838, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x800@85Hz */ |
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360, |
1496, 1712, 0, 800, 803, 809, 843, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x960@60Hz */ |
{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376, |
1488, 1800, 0, 960, 961, 964, 1000, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x960@85Hz */ |
{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344, |
1504, 1728, 0, 960, 961, 964, 1011, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x1024@60Hz */ |
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328, |
1440, 1688, 0, 1024, 1025, 1028, 1066, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x1024@75Hz */ |
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296, |
1440, 1688, 0, 1024, 1025, 1028, 1066, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1280x1024@85Hz */ |
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344, |
1504, 1728, 0, 1024, 1025, 1028, 1072, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1360x768@60Hz */ |
{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424, |
1536, 1792, 0, 768, 771, 777, 795, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x1050@60Hz */ |
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488, |
1632, 1864, 0, 1050, 1053, 1057, 1089, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x1050@75Hz */ |
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504, |
1648, 1896, 0, 1050, 1053, 1057, 1099, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x1050@85Hz */ |
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504, |
1656, 1912, 0, 1050, 1053, 1057, 1105, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x900@60Hz */ |
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520, |
1672, 1904, 0, 900, 903, 909, 934, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x900@75Hz */ |
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536, |
1688, 1936, 0, 900, 903, 909, 942, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1440x900@85Hz */ |
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544, |
1696, 1952, 0, 900, 903, 909, 948, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1600x1200@60Hz */ |
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664, |
1856, 2160, 0, 1200, 1201, 1204, 1250, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1600x1200@65Hz */ |
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664, |
1856, 2160, 0, 1200, 1201, 1204, 1250, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1600x1200@70Hz */ |
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664, |
1856, 2160, 0, 1200, 1201, 1204, 1250, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1600x1200@75Hz */ |
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 2025000, 1600, 1664, |
1856, 2160, 0, 1200, 1201, 1204, 1250, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1600x1200@85Hz */ |
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664, |
1856, 2160, 0, 1200, 1201, 1204, 1250, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1680x1050@60Hz */ |
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784, |
1960, 2240, 0, 1050, 1053, 1059, 1089, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1680x1050@75Hz */ |
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800, |
1976, 2272, 0, 1050, 1053, 1059, 1099, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1680x1050@85Hz */ |
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808, |
1984, 2288, 0, 1050, 1053, 1059, 1105, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1792x1344@60Hz */ |
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920, |
2120, 2448, 0, 1344, 1345, 1348, 1394, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1729x1344@75Hz */ |
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888, |
2104, 2456, 0, 1344, 1345, 1348, 1417, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1853x1392@60Hz */ |
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952, |
2176, 2528, 0, 1392, 1393, 1396, 1439, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1856x1392@75Hz */ |
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984, |
2208, 2560, 0, 1392, 1395, 1399, 1500, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1920x1200@60Hz */ |
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056, |
2256, 2592, 0, 1200, 1203, 1209, 1245, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1920x1200@75Hz */ |
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056, |
2264, 2608, 0, 1200, 1203, 1209, 1255, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1920x1200@85Hz */ |
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064, |
2272, 2624, 0, 1200, 1203, 1209, 1262, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1920x1440@60Hz */ |
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048, |
2256, 2600, 0, 1440, 1441, 1444, 1500, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 1920x1440@75Hz */ |
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064, |
2288, 2640, 0, 1440, 1441, 1444, 1500, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 2560x1600@60Hz */ |
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752, |
3032, 3504, 0, 1600, 1603, 1609, 1658, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 2560x1600@75HZ */ |
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768, |
3048, 3536, 0, 1600, 1603, 1609, 1672, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
/* 2560x1600@85HZ */ |
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768, |
3048, 3536, 0, 1600, 1603, 1609, 1682, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, |
}; |
static const int drm_num_dmt_modes = |
sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode); |
|
static struct drm_display_mode *drm_find_dmt(struct drm_device *dev, |
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, |
int hsize, int vsize, int fresh) |
{ |
struct drm_display_mode *mode = NULL; |
int i; |
struct drm_display_mode *ptr, *mode; |
|
mode = NULL; |
for (i = 0; i < drm_num_dmt_modes; i++) { |
ptr = &drm_dmt_modes[i]; |
const struct drm_display_mode *ptr = &drm_dmt_modes[i]; |
if (hsize == ptr->hdisplay && |
vsize == ptr->vdisplay && |
fresh == drm_mode_vrefresh(ptr)) { |
513,7 → 482,164 |
} |
return mode; |
} |
EXPORT_SYMBOL(drm_mode_find_dmt); |
|
typedef void detailed_cb(struct detailed_timing *timing, void *closure); |
|
static void |
cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure) |
{ |
int i, n = 0; |
u8 rev = ext[0x01], d = ext[0x02]; |
u8 *det_base = ext + d; |
|
switch (rev) { |
case 0: |
/* can't happen */ |
return; |
case 1: |
/* have to infer how many blocks we have, check pixel clock */ |
for (i = 0; i < 6; i++) |
if (det_base[18*i] || det_base[18*i+1]) |
n++; |
break; |
default: |
/* explicit count */ |
n = min(ext[0x03] & 0x0f, 6); |
break; |
} |
|
for (i = 0; i < n; i++) |
cb((struct detailed_timing *)(det_base + 18 * i), closure); |
} |
|
static void |
vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure) |
{ |
unsigned int i, n = min((int)ext[0x02], 6); |
u8 *det_base = ext + 5; |
|
if (ext[0x01] != 1) |
return; /* unknown version */ |
|
for (i = 0; i < n; i++) |
cb((struct detailed_timing *)(det_base + 18 * i), closure); |
} |
|
static void |
drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure) |
{ |
int i; |
struct edid *edid = (struct edid *)raw_edid; |
|
if (edid == NULL) |
return; |
|
for (i = 0; i < EDID_DETAILED_TIMINGS; i++) |
cb(&(edid->detailed_timings[i]), closure); |
|
for (i = 1; i <= raw_edid[0x7e]; i++) { |
u8 *ext = raw_edid + (i * EDID_LENGTH); |
switch (*ext) { |
case CEA_EXT: |
cea_for_each_detailed_block(ext, cb, closure); |
break; |
case VTB_EXT: |
vtb_for_each_detailed_block(ext, cb, closure); |
break; |
default: |
break; |
} |
} |
} |
|
static void |
is_rb(struct detailed_timing *t, void *data) |
{ |
u8 *r = (u8 *)t; |
if (r[3] == EDID_DETAIL_MONITOR_RANGE) |
if (r[15] & 0x10) |
*(bool *)data = true; |
} |
|
/* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */ |
static bool |
drm_monitor_supports_rb(struct edid *edid) |
{ |
if (edid->revision >= 4) { |
bool ret; |
drm_for_each_detailed_block((u8 *)edid, is_rb, &ret); |
return ret; |
} |
|
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. |
533,16 → 659,13 |
* |
* Take the standard timing params (in this case width, aspect, and refresh) |
* and convert them into a real mode using CVT/GTF/DMT. |
* |
* Punts for now, but should eventually use the FB layer's CVT based mode |
* generation code. |
*/ |
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) |
549,6 → 672,7 |
>> 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; |
569,18 → 693,38 |
vsize = (hsize * 4) / 5; |
else |
vsize = (hsize * 9) / 16; |
/* HDTV hack */ |
if (hsize == 1360 && vsize == 765 && vrefresh_rate == 60) { |
mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0, |
|
/* HDTV hack, part 1 */ |
if (vrefresh_rate == 60 && |
((hsize == 1360 && vsize == 765) || |
(hsize == 1368 && vsize == 769))) { |
hsize = 1366; |
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, |
false); |
mode->hdisplay = 1366; |
mode->vsync_start = mode->vsync_start - 1; |
mode->vsync_end = mode->vsync_end - 1; |
mode->hsync_start = mode->hsync_start - 1; |
mode->hsync_end = mode->hsync_end - 1; |
return mode; |
} |
mode = NULL; |
|
/* check whether it can be found in default mode table */ |
mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate); |
mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate); |
if (mode) |
return mode; |
|
590,6 → 734,23 |
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); |
622,13 → 783,11 |
{ 1440, 576 }, |
{ 2880, 576 }, |
}; |
static const int n_sizes = |
sizeof(cea_interlaced)/sizeof(cea_interlaced[0]); |
|
if (!(pt->misc & DRM_EDID_PT_INTERLACED)) |
return; |
|
for (i = 0; i < n_sizes; i++) { |
for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) { |
if ((mode->hdisplay == cea_interlaced[i].w) && |
(mode->vdisplay == cea_interlaced[i].h / 2)) { |
mode->vdisplay *= 2; |
707,15 → 866,6 |
mode->vsync_end = mode->vsync_start + vsync_pulse_width; |
mode->vtotal = mode->vdisplay + vblank; |
|
/* perform the basic check for the detailed timing */ |
if (mode->hsync_end > mode->htotal || |
mode->vsync_end > mode->vtotal) { |
drm_mode_destroy(dev, mode); |
DRM_DEBUG_KMS("Incorrect detailed timing. " |
"Sync is beyond the blank.\n"); |
return NULL; |
} |
|
/* Some EDIDs have bogus h/vtotal values */ |
if (mode->hsync_end > mode->htotal) |
mode->htotal = mode->hsync_end + 1; |
722,10 → 872,10 |
if (mode->vsync_end > mode->vtotal) |
mode->vtotal = mode->vsync_end + 1; |
|
drm_mode_do_interlace_quirk(mode, pt); |
|
drm_mode_set_name(mode); |
|
drm_mode_do_interlace_quirk(mode, pt); |
|
if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) { |
pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE; |
} |
751,67 → 901,183 |
return mode; |
} |
|
static bool |
mode_is_rb(const struct drm_display_mode *mode) |
{ |
return (mode->htotal - mode->hdisplay == 160) && |
(mode->hsync_end - mode->hdisplay == 80) && |
(mode->hsync_end - mode->hsync_start == 32) && |
(mode->vsync_start - mode->vdisplay == 3); |
} |
|
static bool |
mode_in_hsync_range(const struct drm_display_mode *mode, |
struct edid *edid, u8 *t) |
{ |
int hsync, hmin, hmax; |
|
hmin = t[7]; |
if (edid->revision >= 4) |
hmin += ((t[4] & 0x04) ? 255 : 0); |
hmax = t[8]; |
if (edid->revision >= 4) |
hmax += ((t[4] & 0x08) ? 255 : 0); |
hsync = drm_mode_hsync(mode); |
|
return (hsync <= hmax && hsync >= hmin); |
} |
|
static bool |
mode_in_vsync_range(const struct drm_display_mode *mode, |
struct edid *edid, u8 *t) |
{ |
int vsync, vmin, vmax; |
|
vmin = t[5]; |
if (edid->revision >= 4) |
vmin += ((t[4] & 0x01) ? 255 : 0); |
vmax = t[6]; |
if (edid->revision >= 4) |
vmax += ((t[4] & 0x02) ? 255 : 0); |
vsync = drm_mode_vrefresh(mode); |
|
return (vsync <= vmax && vsync >= vmin); |
} |
|
static u32 |
range_pixel_clock(struct edid *edid, u8 *t) |
{ |
/* unspecified */ |
if (t[9] == 0 || t[9] == 255) |
return 0; |
|
/* 1.4 with CVT support gives us real precision, yay */ |
if (edid->revision >= 4 && t[10] == 0x04) |
return (t[9] * 10000) - ((t[12] >> 2) * 250); |
|
/* 1.3 is pathetic, so fuzz up a bit */ |
return t[9] * 10000 + 5001; |
} |
|
static bool |
mode_in_range(const struct drm_display_mode *mode, struct edid *edid, |
struct detailed_timing *timing) |
{ |
u32 max_clock; |
u8 *t = (u8 *)timing; |
|
if (!mode_in_hsync_range(mode, edid, t)) |
return false; |
|
if (!mode_in_vsync_range(mode, edid, t)) |
return false; |
|
if ((max_clock = range_pixel_clock(edid, t))) |
if (mode->clock > max_clock) |
return false; |
|
/* 1.4 max horizontal check */ |
if (edid->revision >= 4 && t[10] == 0x04) |
if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3)))) |
return false; |
|
if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid)) |
return false; |
|
return true; |
} |
|
/* |
* Detailed mode info for the EDID "established modes" data to use. |
* XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will |
* need to account for them. |
*/ |
static struct drm_display_mode edid_est_modes[] = { |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, |
968, 1056, 0, 600, 601, 605, 628, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824, |
896, 1024, 0, 600, 601, 603, 625, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656, |
720, 840, 0, 480, 481, 484, 500, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664, |
704, 832, 0, 480, 489, 491, 520, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704, |
768, 864, 0, 480, 483, 486, 525, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */ |
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656, |
752, 800, 0, 480, 490, 492, 525, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */ |
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738, |
846, 900, 0, 400, 421, 423, 449, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */ |
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738, |
846, 900, 0, 400, 412, 414, 449, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */ |
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296, |
1440, 1688, 0, 1024, 1025, 1028, 1066, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040, |
1136, 1312, 0, 768, 769, 772, 800, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048, |
1184, 1328, 0, 768, 771, 777, 806, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, |
1184, 1344, 0, 768, 771, 777, 806, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */ |
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032, |
1208, 1264, 0, 768, 768, 776, 817, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */ |
{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864, |
928, 1152, 0, 624, 625, 628, 667, 0, |
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816, |
896, 1056, 0, 600, 601, 604, 625, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */ |
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856, |
976, 1040, 0, 600, 637, 643, 666, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */ |
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, |
1344, 1600, 0, 864, 865, 868, 900, 0, |
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */ |
static int |
drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid, |
struct detailed_timing *timing) |
{ |
int i, modes = 0; |
struct drm_display_mode *newmode; |
struct drm_device *dev = connector->dev; |
|
for (i = 0; i < drm_num_dmt_modes; i++) { |
if (mode_in_range(drm_dmt_modes + i, edid, timing)) { |
newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]); |
if (newmode) { |
drm_mode_probed_add(connector, newmode); |
modes++; |
} |
} |
} |
|
return modes; |
} |
|
static void |
do_inferred_modes(struct detailed_timing *timing, void *c) |
{ |
struct detailed_mode_closure *closure = c; |
struct detailed_non_pixel *data = &timing->data.other_data; |
int gtf = (closure->edid->features & DRM_EDID_FEATURE_DEFAULT_GTF); |
|
if (gtf && data->type == EDID_DETAIL_MONITOR_RANGE) |
closure->modes += drm_gtf_modes_for_range(closure->connector, |
closure->edid, |
timing); |
} |
|
static int |
add_inferred_modes(struct drm_connector *connector, struct edid *edid) |
{ |
struct detailed_mode_closure closure = { |
connector, edid, 0, 0, 0 |
}; |
|
#define EDID_EST_TIMINGS 16 |
#define EDID_STD_TIMINGS 8 |
#define EDID_DETAILED_TIMINGS 4 |
if (version_greater(edid, 1, 0)) |
drm_for_each_detailed_block((u8 *)edid, do_inferred_modes, |
&closure); |
|
return closure.modes; |
} |
|
static int |
drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing) |
{ |
int i, j, m, modes = 0; |
struct drm_display_mode *mode; |
u8 *est = ((u8 *)timing) + 5; |
|
for (i = 0; i < 6; i++) { |
for (j = 7; j > 0; j--) { |
m = (i * 8) + (7 - j); |
if (m >= ARRAY_SIZE(est3_modes)) |
break; |
if (est[i] & (1 << j)) { |
mode = drm_mode_find_dmt(connector->dev, |
est3_modes[m].w, |
est3_modes[m].h, |
est3_modes[m].r |
/*, est3_modes[m].rb */); |
if (mode) { |
drm_mode_probed_add(connector, mode); |
modes++; |
} |
} |
} |
} |
|
return modes; |
} |
|
static void |
do_established_modes(struct detailed_timing *timing, void *c) |
{ |
struct detailed_mode_closure *closure = c; |
struct detailed_non_pixel *data = &timing->data.other_data; |
|
if (data->type == EDID_DETAIL_EST_TIMINGS) |
closure->modes += drm_est3_modes(closure->connector, timing); |
} |
|
/** |
* add_established_modes - get est. modes from EDID and add them |
* @edid: EDID block to scan |
819,7 → 1085,8 |
* Each EDID block contains a bitmap of the supported "established modes" list |
* (defined above). Tease them out and add them to the global modes list. |
*/ |
static int add_established_modes(struct drm_connector *connector, struct edid *edid) |
static int |
add_established_modes(struct drm_connector *connector, struct edid *edid) |
{ |
struct drm_device *dev = connector->dev; |
unsigned long est_bits = edid->established_timings.t1 | |
826,8 → 1093,11 |
(edid->established_timings.t2 << 8) | |
((edid->established_timings.mfg_rsvd & 0x80) << 9); |
int i, modes = 0; |
struct detailed_mode_closure closure = { |
connector, edid, 0, 0, 0 |
}; |
|
for (i = 0; i <= EDID_EST_TIMINGS; i++) |
for (i = 0; i <= EDID_EST_TIMINGS; i++) { |
if (est_bits & (1<<i)) { |
struct drm_display_mode *newmode; |
newmode = drm_mode_duplicate(dev, &edid_est_modes[i]); |
836,48 → 1106,61 |
modes++; |
} |
} |
} |
|
return modes; |
if (version_greater(edid, 1, 0)) |
drm_for_each_detailed_block((u8 *)edid, |
do_established_modes, &closure); |
|
return modes + closure.modes; |
} |
/** |
* stanard_timing_level - get std. timing level(CVT/GTF/DMT) |
* @edid: EDID block to scan |
*/ |
static int standard_timing_level(struct edid *edid) |
|
static void |
do_standard_modes(struct detailed_timing *timing, void *c) |
{ |
if (edid->revision >= 2) { |
if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)) |
return LEVEL_CVT; |
return LEVEL_GTF; |
struct detailed_mode_closure *closure = c; |
struct detailed_non_pixel *data = &timing->data.other_data; |
struct drm_connector *connector = closure->connector; |
struct edid *edid = closure->edid; |
|
if (data->type == EDID_DETAIL_STD_MODES) { |
int i; |
for (i = 0; i < 6; i++) { |
struct std_timing *std; |
struct drm_display_mode *newmode; |
|
std = &data->data.timings[i]; |
newmode = drm_mode_std(connector, edid, std, |
edid->revision); |
if (newmode) { |
drm_mode_probed_add(connector, newmode); |
closure->modes++; |
} |
return LEVEL_DMT; |
} |
} |
} |
|
/** |
* add_standard_modes - get std. modes from EDID and add them |
* @edid: EDID block to scan |
* |
* Standard modes can be calculated using the CVT standard. Grab them from |
* @edid, calculate them, and add them to the list. |
* Standard modes can be calculated using the appropriate standard (DMT, |
* GTF or CVT. Grab them from @edid and add them to the list. |
*/ |
static int add_standard_modes(struct drm_connector *connector, struct edid *edid) |
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; |
struct detailed_mode_closure closure = { |
connector, edid, 0, 0, 0 |
}; |
|
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; |
|
/* If std timings bytes are 1, 1 it's empty */ |
if (t->hsize == 1 && t->vfreq_aspect == 1) |
continue; |
|
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++; |
884,67 → 1167,15 |
} |
} |
|
return modes; |
} |
if (version_greater(edid, 1, 0)) |
drm_for_each_detailed_block((u8 *)edid, do_standard_modes, |
&closure); |
|
/* |
* XXX fix this for: |
* - GTF secondary curve formula |
* - EDID 1.4 range offsets |
* - CVT extended bits |
*/ |
static bool |
mode_in_range(struct drm_display_mode *mode, struct detailed_timing *timing) |
{ |
struct detailed_data_monitor_range *range; |
int hsync, vrefresh; |
/* XXX should also look for standard codes in VTB blocks */ |
|
range = &timing->data.other_data.data.range; |
|
hsync = drm_mode_hsync(mode); |
vrefresh = drm_mode_vrefresh(mode); |
|
if (hsync < range->min_hfreq_khz || hsync > range->max_hfreq_khz) |
return false; |
|
if (vrefresh < range->min_vfreq || vrefresh > range->max_vfreq) |
return false; |
|
if (range->pixel_clock_mhz && range->pixel_clock_mhz != 0xff) { |
/* be forgiving since it's in units of 10MHz */ |
int max_clock = range->pixel_clock_mhz * 10 + 9; |
max_clock *= 1000; |
if (mode->clock > max_clock) |
return false; |
return modes + closure.modes; |
} |
|
return true; |
} |
|
/* |
* XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will |
* need to account for them. |
*/ |
static int drm_gtf_modes_for_range(struct drm_connector *connector, |
struct detailed_timing *timing) |
{ |
int i, modes = 0; |
struct drm_display_mode *newmode; |
struct drm_device *dev = connector->dev; |
|
for (i = 0; i < drm_num_dmt_modes; i++) { |
if (mode_in_range(drm_dmt_modes + i, timing)) { |
newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]); |
if (newmode) { |
drm_mode_probed_add(connector, newmode); |
modes++; |
} |
} |
} |
|
return modes; |
} |
|
static int drm_cvt_modes(struct drm_connector *connector, |
struct detailed_timing *timing) |
{ |
994,281 → 1225,111 |
return modes; |
} |
|
static int add_detailed_modes(struct drm_connector *connector, |
struct detailed_timing *timing, |
struct edid *edid, u32 quirks, int preferred) |
static void |
do_cvt_mode(struct detailed_timing *timing, void *c) |
{ |
int i, modes = 0; |
struct detailed_mode_closure *closure = c; |
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; |
|
if (timing->pixel_clock) { |
newmode = drm_mode_detailed(dev, edid, timing, quirks); |
if (!newmode) |
return 0; |
if (data->type == EDID_DETAIL_CVT_3BYTE) |
closure->modes += drm_cvt_modes(closure->connector, timing); |
} |
|
if (preferred) |
newmode->type |= DRM_MODE_TYPE_PREFERRED; |
static int |
add_cvt_modes(struct drm_connector *connector, struct edid *edid) |
{ |
struct detailed_mode_closure closure = { |
connector, edid, 0, 0, 0 |
}; |
|
drm_mode_probed_add(connector, newmode); |
return 1; |
} |
if (version_greater(edid, 1, 2)) |
drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure); |
|
/* other timing types */ |
switch (data->type) { |
case EDID_DETAIL_MONITOR_RANGE: |
if (gtf) |
modes += drm_gtf_modes_for_range(connector, timing); |
break; |
case EDID_DETAIL_STD_MODES: |
/* Six modes per detailed section */ |
for (i = 0; i < 6; i++) { |
struct std_timing *std; |
struct drm_display_mode *newmode; |
/* XXX should also look for CVT codes in VTB blocks */ |
|
std = &data->data.timings[i]; |
newmode = drm_mode_std(dev, std, edid->revision, |
timing_level); |
if (newmode) { |
drm_mode_probed_add(connector, newmode); |
modes++; |
return closure.modes; |
} |
} |
break; |
case EDID_DETAIL_CVT_3BYTE: |
modes += drm_cvt_modes(connector, timing); |
break; |
default: |
break; |
} |
|
return modes; |
} |
|
/** |
* add_detailed_info - get detailed mode info from EDID data |
* @connector: attached connector |
* @edid: EDID block to scan |
* @quirks: quirks to apply |
* |
* Some of the detailed timing sections may contain mode information. Grab |
* it and add it to the list. |
*/ |
static int add_detailed_info(struct drm_connector *connector, |
struct edid *edid, u32 quirks) |
static void |
do_detailed_mode(struct detailed_timing *timing, void *c) |
{ |
int i, modes = 0; |
struct detailed_mode_closure *closure = c; |
struct drm_display_mode *newmode; |
|
for (i = 0; i < EDID_DETAILED_TIMINGS; i++) { |
struct detailed_timing *timing = &edid->detailed_timings[i]; |
int preferred = (i == 0) && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING); |
if (timing->pixel_clock) { |
newmode = drm_mode_detailed(closure->connector->dev, |
closure->edid, timing, |
closure->quirks); |
if (!newmode) |
return; |
|
/* In 1.0, only timings are allowed */ |
if (!timing->pixel_clock && edid->version == 1 && |
edid->revision == 0) |
continue; |
if (closure->preferred) |
newmode->type |= DRM_MODE_TYPE_PREFERRED; |
|
modes += add_detailed_modes(connector, timing, edid, quirks, |
preferred); |
drm_mode_probed_add(closure->connector, newmode); |
closure->modes++; |
closure->preferred = 0; |
} |
|
return modes; |
} |
|
/** |
* add_detailed_mode_eedid - get detailed mode info from addtional timing |
* EDID block |
/* |
* add_detailed_modes - Add modes from detailed timings |
* @connector: attached connector |
* @edid: EDID block to scan(It is only to get addtional timing EDID block) |
* @edid: EDID block to scan |
* @quirks: quirks to apply |
* |
* Some of the detailed timing sections may contain mode information. Grab |
* it and add it to the list. |
*/ |
static int add_detailed_info_eedid(struct drm_connector *connector, |
struct edid *edid, u32 quirks) |
static int |
add_detailed_modes(struct drm_connector *connector, struct edid *edid, |
u32 quirks) |
{ |
int i, modes = 0; |
char *edid_ext = NULL; |
struct detailed_timing *timing; |
int edid_ext_num; |
int start_offset, end_offset; |
int timing_level; |
struct detailed_mode_closure closure = { |
connector, |
edid, |
1, |
quirks, |
0 |
}; |
|
if (edid->version == 1 && edid->revision < 3) { |
/* If the EDID version is less than 1.3, there is no |
* extension EDID. |
*/ |
return 0; |
} |
if (!edid->extensions) { |
/* if there is no extension EDID, it is unnecessary to |
* parse the E-EDID to get detailed info |
*/ |
return 0; |
} |
if (closure.preferred && !version_greater(edid, 1, 3)) |
closure.preferred = |
(edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING); |
|
/* Chose real EDID extension number */ |
edid_ext_num = edid->extensions > DRM_MAX_EDID_EXT_NUM ? |
DRM_MAX_EDID_EXT_NUM : edid->extensions; |
drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure); |
|
/* Find CEA extension */ |
for (i = 0; i < edid_ext_num; i++) { |
edid_ext = (char *)edid + EDID_LENGTH * (i + 1); |
/* This block is CEA extension */ |
if (edid_ext[0] == 0x02) |
break; |
return closure.modes; |
} |
|
if (i == edid_ext_num) { |
/* if there is no additional timing EDID block, return */ |
return 0; |
} |
#define HDMI_IDENTIFIER 0x000C03 |
#define AUDIO_BLOCK 0x01 |
#define VENDOR_BLOCK 0x03 |
#define EDID_BASIC_AUDIO (1 << 6) |
|
/* Get the start offset of detailed timing block */ |
start_offset = edid_ext[2]; |
if (start_offset == 0) { |
/* If the start_offset is zero, it means that neither detailed |
* info nor data block exist. In such case it is also |
* unnecessary to parse the detailed timing info. |
*/ |
return 0; |
} |
|
timing_level = standard_timing_level(edid); |
end_offset = EDID_LENGTH; |
end_offset -= sizeof(struct detailed_timing); |
for (i = start_offset; i < end_offset; |
i += sizeof(struct detailed_timing)) { |
timing = (struct detailed_timing *)(edid_ext + i); |
modes += add_detailed_modes(connector, timing, edid, quirks, 0); |
} |
|
return modes; |
} |
|
#define DDC_ADDR 0x50 |
/** |
* Get EDID information via I2C. |
* |
* \param adapter : i2c device adaptor |
* \param buf : EDID data buffer to be filled |
* \param len : EDID data buffer length |
* \return 0 on success or -1 on failure. |
* |
* Try to fetch EDID information by calling i2c driver function. |
* Search EDID for CEA extension block. |
*/ |
int drm_do_probe_ddc_edid(struct i2c_adapter *adapter, |
unsigned char *buf, int len) |
u8 *drm_find_cea_extension(struct edid *edid) |
{ |
unsigned char start = 0x0; |
struct i2c_msg msgs[] = { |
{ |
.addr = DDC_ADDR, |
.flags = 0, |
.len = 1, |
.buf = &start, |
}, { |
.addr = DDC_ADDR, |
.flags = I2C_M_RD, |
.len = len, |
.buf = buf, |
} |
}; |
|
if (i2c_transfer(adapter, msgs, 2) == 2) |
return 0; |
|
return -1; |
} |
EXPORT_SYMBOL(drm_do_probe_ddc_edid); |
|
static int drm_ddc_read_edid(struct drm_connector *connector, |
struct i2c_adapter *adapter, |
char *buf, int len) |
{ |
u8 *edid_ext = NULL; |
int i; |
|
for (i = 0; i < 4; i++) { |
if (drm_do_probe_ddc_edid(adapter, buf, len)) |
return -1; |
if (drm_edid_is_valid((struct edid *)buf)) |
return 0; |
} |
/* No EDID or EDID extensions */ |
if (edid == NULL || edid->extensions == 0) |
return NULL; |
|
/* repeated checksum failures; warn, but carry on */ |
dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n", |
drm_get_connector_name(connector)); |
return -1; |
/* Find CEA extension */ |
for (i = 0; i < edid->extensions; i++) { |
edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1); |
if (edid_ext[0] == CEA_EXT) |
break; |
} |
|
/** |
* drm_get_edid - get EDID data, if available |
* @connector: connector we're probing |
* @adapter: i2c adapter to use for DDC |
* |
* Poke the given connector's i2c channel to grab EDID data if possible. |
* |
* Return edid data or NULL if we couldn't find any. |
*/ |
struct edid *drm_get_edid(struct drm_connector *connector, |
struct i2c_adapter *adapter) |
{ |
int ret; |
struct edid *edid; |
if (i == edid->extensions) |
return NULL; |
|
edid = kmalloc(EDID_LENGTH * (DRM_MAX_EDID_EXT_NUM + 1), |
GFP_KERNEL); |
if (edid == NULL) { |
dev_warn(&connector->dev->pdev->dev, |
"Failed to allocate EDID\n"); |
goto end; |
return edid_ext; |
} |
EXPORT_SYMBOL(drm_find_cea_extension); |
|
/* Read first EDID block */ |
ret = drm_ddc_read_edid(connector, adapter, |
(unsigned char *)edid, EDID_LENGTH); |
if (ret != 0) |
goto clean_up; |
|
/* There are EDID extensions to be read */ |
if (edid->extensions != 0) { |
int edid_ext_num = edid->extensions; |
|
if (edid_ext_num > DRM_MAX_EDID_EXT_NUM) { |
dev_warn(&connector->dev->pdev->dev, |
"The number of extension(%d) is " |
"over max (%d), actually read number (%d)\n", |
edid_ext_num, DRM_MAX_EDID_EXT_NUM, |
DRM_MAX_EDID_EXT_NUM); |
/* Reset EDID extension number to be read */ |
edid_ext_num = DRM_MAX_EDID_EXT_NUM; |
} |
/* Read EDID including extensions too */ |
ret = drm_ddc_read_edid(connector, adapter, (char *)edid, |
EDID_LENGTH * (edid_ext_num + 1)); |
if (ret != 0) |
goto clean_up; |
|
} |
|
connector->display_info.raw_edid = (char *)edid; |
goto end; |
|
clean_up: |
kfree(edid); |
edid = NULL; |
end: |
return edid; |
|
} |
EXPORT_SYMBOL(drm_get_edid); |
|
#define HDMI_IDENTIFIER 0x000C03 |
#define VENDOR_BLOCK 0x03 |
/** |
* drm_detect_hdmi_monitor - detect whether monitor is hdmi. |
* @edid: monitor EDID information |
1278,30 → 1339,15 |
*/ |
bool drm_detect_hdmi_monitor(struct edid *edid) |
{ |
char *edid_ext = NULL; |
int i, hdmi_id, edid_ext_num; |
u8 *edid_ext; |
int i, hdmi_id; |
int start_offset, end_offset; |
bool is_hdmi = false; |
|
/* No EDID or EDID extensions */ |
if (edid == NULL || edid->extensions == 0) |
edid_ext = drm_find_cea_extension(edid); |
if (!edid_ext) |
goto end; |
|
/* Chose real EDID extension number */ |
edid_ext_num = edid->extensions > DRM_MAX_EDID_EXT_NUM ? |
DRM_MAX_EDID_EXT_NUM : edid->extensions; |
|
/* Find CEA extension */ |
for (i = 0; i < edid_ext_num; i++) { |
edid_ext = (char *)edid + EDID_LENGTH * (i + 1); |
/* This block is CEA extension */ |
if (edid_ext[0] == 0x02) |
break; |
} |
|
if (i == edid_ext_num) |
goto end; |
|
/* Data block offset in CEA extension block */ |
start_offset = 4; |
end_offset = edid_ext[2]; |
1330,6 → 1376,111 |
EXPORT_SYMBOL(drm_detect_hdmi_monitor); |
|
/** |
* drm_detect_monitor_audio - check monitor audio capability |
* |
* Monitor should have CEA extension block. |
* If monitor has 'basic audio', but no CEA audio blocks, it's 'basic |
* audio' only. If there is any audio extension block and supported |
* audio format, assume at least 'basic audio' support, even if 'basic |
* audio' is not defined in EDID. |
* |
*/ |
bool drm_detect_monitor_audio(struct edid *edid) |
{ |
u8 *edid_ext; |
int i, j; |
bool has_audio = false; |
int start_offset, end_offset; |
|
edid_ext = drm_find_cea_extension(edid); |
if (!edid_ext) |
goto end; |
|
has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0); |
|
if (has_audio) { |
DRM_DEBUG_KMS("Monitor has basic audio support\n"); |
goto end; |
} |
|
/* Data block offset in CEA extension block */ |
start_offset = 4; |
end_offset = edid_ext[2]; |
|
for (i = start_offset; i < end_offset; |
i += ((edid_ext[i] & 0x1f) + 1)) { |
if ((edid_ext[i] >> 5) == AUDIO_BLOCK) { |
has_audio = true; |
for (j = 1; j < (edid_ext[i] & 0x1f); j += 3) |
DRM_DEBUG_KMS("CEA audio format %d\n", |
(edid_ext[i + j] >> 3) & 0xf); |
goto end; |
} |
} |
end: |
return has_audio; |
} |
EXPORT_SYMBOL(drm_detect_monitor_audio); |
|
/** |
* drm_add_display_info - pull display info out if present |
* @edid: EDID data |
* @info: display info (attached to connector) |
* |
* Grab any available display info and stuff it into the drm_display_info |
* structure that's part of the connector. Useful for tracking bpp and |
* color spaces. |
*/ |
static void drm_add_display_info(struct edid *edid, |
struct drm_display_info *info) |
{ |
info->width_mm = edid->width_cm * 10; |
info->height_mm = edid->height_cm * 10; |
|
/* driver figures it out in this case */ |
info->bpc = 0; |
info->color_formats = 0; |
|
/* Only defined for 1.4 with digital displays */ |
if (edid->revision < 4) |
return; |
|
if (!(edid->input & DRM_EDID_INPUT_DIGITAL)) |
return; |
|
switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) { |
case DRM_EDID_DIGITAL_DEPTH_6: |
info->bpc = 6; |
break; |
case DRM_EDID_DIGITAL_DEPTH_8: |
info->bpc = 8; |
break; |
case DRM_EDID_DIGITAL_DEPTH_10: |
info->bpc = 10; |
break; |
case DRM_EDID_DIGITAL_DEPTH_12: |
info->bpc = 12; |
break; |
case DRM_EDID_DIGITAL_DEPTH_14: |
info->bpc = 14; |
break; |
case DRM_EDID_DIGITAL_DEPTH_16: |
info->bpc = 16; |
break; |
case DRM_EDID_DIGITAL_DEPTH_UNDEF: |
default: |
info->bpc = 0; |
break; |
} |
|
info->color_formats = DRM_COLOR_FORMAT_RGB444; |
if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB444) |
info->color_formats = DRM_COLOR_FORMAT_YCRCB444; |
if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422) |
info->color_formats = DRM_COLOR_FORMAT_YCRCB422; |
} |
|
/** |
* drm_add_edid_modes - add modes from EDID data, if available |
* @connector: connector we're probing |
* @edid: edid data |
1347,7 → 1498,7 |
return 0; |
} |
if (!drm_edid_is_valid(edid)) { |
dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n", |
dev_warn(connector->dev->dev, "%s: EDID invalid.\n", |
drm_get_connector_name(connector)); |
return 0; |
} |
1354,31 → 1505,30 |
|
quirks = edid_get_quirks(edid); |
|
/* |
* EDID spec says modes should be preferred in this order: |
* - preferred detailed mode |
* - other detailed modes from base block |
* - detailed modes from extension blocks |
* - CVT 3-byte code modes |
* - standard timing codes |
* - established timing codes |
* - modes inferred from GTF or CVT range information |
* |
* We get this pretty much right. |
* |
* XXX order for additional mode types in extension blocks? |
*/ |
num_modes += add_detailed_modes(connector, edid, quirks); |
num_modes += add_cvt_modes(connector, edid); |
num_modes += add_standard_modes(connector, edid); |
num_modes += add_established_modes(connector, edid); |
num_modes += add_standard_modes(connector, edid); |
num_modes += add_detailed_info(connector, edid, quirks); |
num_modes += add_detailed_info_eedid(connector, edid, quirks); |
num_modes += add_inferred_modes(connector, edid); |
|
if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75)) |
edid_fixup_preferred(connector, quirks); |
|
connector->display_info.serration_vsync = (edid->input & DRM_EDID_INPUT_SERRATION_VSYNC) ? 1 : 0; |
connector->display_info.sync_on_green = (edid->input & DRM_EDID_INPUT_SYNC_ON_GREEN) ? 1 : 0; |
connector->display_info.composite_sync = (edid->input & DRM_EDID_INPUT_COMPOSITE_SYNC) ? 1 : 0; |
connector->display_info.separate_syncs = (edid->input & DRM_EDID_INPUT_SEPARATE_SYNCS) ? 1 : 0; |
connector->display_info.blank_to_black = (edid->input & DRM_EDID_INPUT_BLANK_TO_BLACK) ? 1 : 0; |
connector->display_info.video_level = (edid->input & DRM_EDID_INPUT_VIDEO_LEVEL) >> 5; |
connector->display_info.digital = (edid->input & DRM_EDID_INPUT_DIGITAL) ? 1 : 0; |
connector->display_info.width_mm = edid->width_cm * 10; |
connector->display_info.height_mm = edid->height_cm * 10; |
connector->display_info.gamma = edid->gamma; |
connector->display_info.gtf_supported = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF) ? 1 : 0; |
connector->display_info.standard_color = (edid->features & DRM_EDID_FEATURE_STANDARD_COLOR) ? 1 : 0; |
connector->display_info.display_type = (edid->features & DRM_EDID_FEATURE_DISPLAY_TYPE) >> 3; |
connector->display_info.active_off_supported = (edid->features & DRM_EDID_FEATURE_PM_ACTIVE_OFF) ? 1 : 0; |
connector->display_info.suspend_supported = (edid->features & DRM_EDID_FEATURE_PM_SUSPEND) ? 1 : 0; |
connector->display_info.standby_supported = (edid->features & DRM_EDID_FEATURE_PM_STANDBY) ? 1 : 0; |
connector->display_info.gamma = edid->gamma; |
drm_add_display_info(edid, &connector->display_info); |
|
return num_modes; |
} |
1399,7 → 1549,7 |
int hdisplay, int vdisplay) |
{ |
int i, count, num_modes = 0; |
struct drm_display_mode *mode, *ptr; |
struct drm_display_mode *mode; |
struct drm_device *dev = connector->dev; |
|
count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode); |
1409,7 → 1559,7 |
vdisplay = 0; |
|
for (i = 0; i < count; i++) { |
ptr = &drm_dmt_modes[i]; |
const struct drm_display_mode *ptr = &drm_dmt_modes[i]; |
if (hdisplay && vdisplay) { |
/* |
* Only when two are valid, they will be used to check |