diff options
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 789 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 105 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_sysfs.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_combios.c | 8 | ||||
| -rw-r--r-- | include/drm/drm_crtc.h | 6 | ||||
| -rw-r--r-- | include/drm/drm_edid.h | 3 |
7 files changed, 626 insertions, 294 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 61b9bcf..1d66710 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -34,6 +34,7 @@ #include "drm.h" #include "drmP.h" #include "drm_crtc.h" +#include "drm_edid.h" struct drm_prop_enum_list { int type; @@ -2350,7 +2351,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector, struct edid *edid) { struct drm_device *dev = connector->dev; - int ret = 0; + int ret = 0, size; if (connector->edid_blob_ptr) drm_property_destroy_blob(dev, connector->edid_blob_ptr); @@ -2362,7 +2363,9 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector, return ret; } - connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid); + size = EDID_LENGTH * (1 + edid->extensions); + connector->edid_blob_ptr = drm_property_create_blob(connector->dev, + size, edid); ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 18f41d7..7188674 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -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. @@ -33,10 +34,9 @@ #include "drmP.h" #include "drm_edid.h" -/* - * TODO: - * - support EDID 1.4 (incl. CE blocks) - */ +#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 @@ -65,7 +65,8 @@ #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; @@ -109,36 +110,38 @@ static struct edid_quirk { { "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; - for (i = 0; i < sizeof(edid_header); i++) - if (raw_edid[i] == edid_header[i]) - score++; + if (raw_edid[0] == 0x00) { + int score = 0; - if (score == 8) ; - else if (score >= 6) { - DRM_DEBUG("Fixing EDID header, your hardware may be failing\n"); - memcpy(raw_edid, edid_header, sizeof(edid_header)); - } else - goto bad; + for (i = 0; i < sizeof(edid_header); i++) + if (raw_edid[i] == edid_header[i]) + score++; + + if (score == 8) ; + else if (score >= 6) { + DRM_DEBUG("Fixing EDID header, your hardware may be failing\n"); + memcpy(raw_edid, edid_header, sizeof(edid_header)); + } else { + goto bad; + } + } for (i = 0; i < EDID_LENGTH; i++) csum += raw_edid[i]; @@ -147,13 +150,21 @@ bool drm_edid_is_valid(struct edid *edid) goto bad; } - if (edid->version != 1) { - DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version); - 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; + } + + if (edid->revision > 4) + DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n"); + break; - if (edid->revision > 4) - DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n"); + default: + break; + } return 1; @@ -165,8 +176,158 @@ bad: } 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; + struct i2c_msg msgs[] = { + { + .addr = DDC_ADDR, + .flags = 0, + .len = 1, + .buf = &start, + }, { + .addr = DDC_ADDR, + .flags = I2C_M_RD, + .len = len, + .buf = buf + start, + } + }; + + if (i2c_transfer(adapter, msgs, 2) == 2) + return 0; + + return -1; +} + +static u8 * +drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) +{ + int i, j = 0; + u8 *block, *new; + + 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; + + new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL); + if (!new) + goto out; + block = new; + + for (j = 1; j <= block[0x7e]; j++) { + for (i = 0; i < 4; i++) { + if (drm_do_probe_ddc_edid(adapter, block, j, + EDID_LENGTH)) + goto out; + if (drm_edid_block_valid(block + j * EDID_LENGTH)) + break; + } + if (i == 4) + goto carp; + } + + return block; + +carp: + dev_warn(&connector->dev->pdev->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 @@ -517,6 +678,110 @@ static struct drm_display_mode *drm_find_dmt(struct drm_device *dev, return mode; } +typedef void detailed_cb(struct detailed_timing *timing, void *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); + + /* XXX extension block walk */ +} + +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. @@ -536,22 +801,20 @@ bad_std_timing(u8 a, u8 b) * * 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) >> 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; @@ -572,16 +835,36 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev, 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; 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) @@ -593,6 +876,23 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev, 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); @@ -716,10 +1016,10 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, 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; } @@ -802,10 +1102,6 @@ static struct drm_display_mode edid_est_modes[] = { DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */ }; -#define EDID_EST_TIMINGS 16 -#define EDID_STD_TIMINGS 8 -#define EDID_DETAILED_TIMINGS 4 - /** * add_established_modes - get est. modes from EDID and add them * @edid: EDID block to scan @@ -833,19 +1129,6 @@ static int add_established_modes(struct drm_connector *connector, struct edid *e 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 @@ -856,22 +1139,14 @@ static int standard_timing_level(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; - - 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++; @@ -881,36 +1156,86 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid return modes; } -/* - * 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) +mode_is_rb(struct drm_display_mode *mode) { - struct detailed_data_monitor_range *range; - int hsync, vrefresh; - - range = &timing->data.other_data.data.range; + 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(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); - vrefresh = drm_mode_vrefresh(mode); - if (hsync < range->min_hfreq_khz || hsync > range->max_hfreq_khz) + return (hsync <= hmax && hsync >= hmin); +} + +static bool +mode_in_vsync_range(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(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 (vrefresh < range->min_vfreq || vrefresh > range->max_vfreq) + if (!mode_in_vsync_range(mode, edid, t)) 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 ((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; } @@ -919,15 +1244,16 @@ mode_in_range(struct drm_display_mode *mode, struct detailed_timing *timing) * 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) +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, timing)) { + 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); @@ -988,13 +1314,100 @@ static int drm_cvt_modes(struct drm_connector *connector, return modes; } +static const struct { + short w; + short h; + short r; + short rb; +} est3_modes[] = { + /* byte 6 */ + { 640, 350, 85, 0 }, + { 640, 400, 85, 0 }, + { 720, 400, 85, 0 }, + { 640, 480, 85, 0 }, + { 848, 480, 60, 0 }, + { 800, 600, 85, 0 }, + { 1024, 768, 85, 0 }, + { 1152, 864, 75, 0 }, + /* byte 7 */ + { 1280, 768, 60, 1 }, + { 1280, 768, 60, 0 }, + { 1280, 768, 75, 0 }, + { 1280, 768, 85, 0 }, + { 1280, 960, 60, 0 }, + { 1280, 960, 85, 0 }, + { 1280, 1024, 60, 0 }, + { 1280, 1024, 85, 0 }, + /* byte 8 */ + { 1360, 768, 60, 0 }, + { 1440, 900, 60, 1 }, + { 1440, 900, 60, 0 }, + { 1440, 900, 75, 0 }, + { 1440, 900, 85, 0 }, + { 1400, 1050, 60, 1 }, + { 1400, 1050, 60, 0 }, + { 1400, 1050, 75, 0 }, + /* byte 9 */ + { 1400, 1050, 85, 0 }, + { 1680, 1050, 60, 1 }, + { 1680, 1050, 60, 0 }, + { 1680, 1050, 75, 0 }, + { 1680, 1050, 85, 0 }, + { 1600, 1200, 60, 0 }, + { 1600, 1200, 65, 0 }, + { 1600, 1200, 70, 0 }, + /* byte 10 */ + { 1600, 1200, 75, 0 }, + { 1600, 1200, 85, 0 }, + { 1792, 1344, 60, 0 }, + { 1792, 1344, 85, 0 }, + { 1856, 1392, 60, 0 }, + { 1856, 1392, 75, 0 }, + { 1920, 1200, 60, 1 }, + { 1920, 1200, 60, 0 }, + /* byte 11 */ + { 1920, 1200, 75, 0 }, + { 1920, 1200, 85, 0 }, + { 1920, 1440, 60, 0 }, + { 1920, 1440, 75, 0 }, +}; +static const int num_est3_modes = sizeof(est3_modes) / sizeof(est3_modes[0]); + +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 > num_est3_modes) + break; + if (est[i] & (1 << j)) { + mode = drm_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 int add_detailed_modes(struct drm_connector *connector, struct detailed_timing *timing, struct edid *edid, u32 quirks, int preferred) { 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; @@ -1015,7 +1428,8 @@ static int add_detailed_modes(struct drm_connector *connector, switch (data->type) { case EDID_DETAIL_MONITOR_RANGE: if (gtf) - modes += drm_gtf_modes_for_range(connector, timing); + modes += drm_gtf_modes_for_range(connector, edid, + timing); break; case EDID_DETAIL_STD_MODES: /* Six modes per detailed section */ @@ -1024,8 +1438,8 @@ static int add_detailed_modes(struct drm_connector *connector, 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++; @@ -1035,6 +1449,9 @@ static int add_detailed_modes(struct drm_connector *connector, case EDID_DETAIL_CVT_3BYTE: modes += drm_cvt_modes(connector, timing); break; + case EDID_DETAIL_EST_TIMINGS: + modes += drm_est3_modes(connector, timing); + break; default: break; } @@ -1058,7 +1475,10 @@ static int add_detailed_info(struct drm_connector *connector, 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); + int preferred = (i == 0); + + if (preferred && edid->version == 1 && edid->revision < 4) + preferred = (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING); /* In 1.0, only timings are allowed */ if (!timing->pixel_clock && edid->version == 1 && @@ -1088,39 +1508,23 @@ static int add_detailed_info_eedid(struct drm_connector *connector, int i, modes = 0; char *edid_ext = NULL; struct detailed_timing *timing; - int edid_ext_num; int start_offset, end_offset; int timing_level; - if (edid->version == 1 && edid->revision < 3) { - /* If the EDID version is less than 1.3, there is no - * extension EDID. - */ + if (edid->version == 1 && edid->revision < 3) return 0; - } - if (!edid->extensions) { - /* if there is no extension EDID, it is unnecessary to - * parse the E-EDID to get detailed info - */ + if (!edid->extensions) return 0; - } - - /* 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++) { + for (i = 0; i < edid->extensions; 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) { - /* if there is no additional timing EDID block, return */ + if (i == edid->extensions) return 0; - } /* Get the start offset of detailed timing block */ start_offset = edid_ext[2]; @@ -1144,123 +1548,6 @@ static int add_detailed_info_eedid(struct drm_connector *connector, 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. - */ -int drm_do_probe_ddc_edid(struct i2c_adapter *adapter, - unsigned char *buf, int len) -{ - 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) -{ - 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; - } - - /* repeated checksum failures; warn, but carry on */ - dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n", - drm_get_connector_name(connector)); - return -1; -} - -/** - * 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; - - 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; - } - - /* 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 /** @@ -1273,7 +1560,7 @@ EXPORT_SYMBOL(drm_get_edid); bool drm_detect_hdmi_monitor(struct edid *edid) { char *edid_ext = NULL; - int i, hdmi_id, edid_ext_num; + int i, hdmi_id; int start_offset, end_offset; bool is_hdmi = false; @@ -1281,19 +1568,15 @@ bool drm_detect_hdmi_monitor(struct edid *edid) if (edid == NULL || edid->extensions == 0) 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++) { + for (i = 0; i < edid->extensions; 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) + if (i == edid->extensions) goto end; /* Data block offset in CEA extension block */ @@ -1348,10 +1631,24 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) quirks = edid_get_quirks(edid); - num_modes += add_established_modes(connector, edid); - num_modes += add_standard_modes(connector, 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 don't quite implement this yet, but we're close. + * + * XXX order for additional mode types in extension blocks? + */ num_modes += add_detailed_info(connector, edid, quirks); num_modes += add_detailed_info_eedid(connector, edid, quirks); + num_modes += add_standard_modes(connector, edid); + num_modes += add_established_modes(connector, edid); if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75)) edid_fixup_preferred(connector, quirks); diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 76d6339..f1f473e 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -258,8 +258,10 @@ struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay, drm_mode->clock -= drm_mode->clock % CVT_CLOCK_STEP; /* 18/16. Find actual vertical frame frequency */ /* ignore - just set the mode flag for interlaced */ - if (interlaced) + if (interlaced) { drm_mode->vtotal *= 2; + drm_mode->flags |= DRM_MODE_FLAG_INTERLACE; + } /* Fill the mode line name */ drm_mode_set_name(drm_mode); if (reduced) @@ -268,43 +270,35 @@ struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay, else drm_mode->flags |= (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NHSYNC); - if (interlaced) - drm_mode->flags |= DRM_MODE_FLAG_INTERLACE; - return drm_mode; + return drm_mode; } EXPORT_SYMBOL(drm_cvt_mode); /** - * drm_gtf_mode - create the modeline based on GTF algorithm + * drm_gtf_mode_complex - create the modeline based on full GTF algorithm * * @dev :drm device * @hdisplay :hdisplay size * @vdisplay :vdisplay size * @vrefresh :vrefresh rate. * @interlaced :whether the interlace is supported - * @margins :whether the margin is supported + * @margins :desired margin size + * @GTF_[MCKJ] :extended GTF formula parameters * * LOCKING. * none. * - * return the modeline based on GTF algorithm - * - * This function is to create the modeline based on the GTF algorithm. - * Generalized Timing Formula is derived from: - * GTF Spreadsheet by Andy Morrish (1/5/97) - * available at http://www.vesa.org + * return the modeline based on full GTF algorithm. * - * And it is copied from the file of xserver/hw/xfree86/modes/xf86gtf.c. - * What I have done is to translate it by using integer calculation. - * I also refer to the function of fb_get_mode in the file of - * drivers/video/fbmon.c + * GTF feature blocks specify C and J in multiples of 0.5, so we pass them + * in here multiplied by two. For a C of 40, pass in 80. */ -struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay, - int vdisplay, int vrefresh, - bool interlaced, int margins) -{ - /* 1) top/bottom margin size (% of height) - default: 1.8, */ +struct drm_display_mode * +drm_gtf_mode_complex(struct drm_device *dev, int hdisplay, int vdisplay, + int vrefresh, bool interlaced, int margins, + int GTF_M, int GTF_2C, int GTF_K, int GTF_2J) +{ /* 1) top/bottom margin size (% of height) - default: 1.8, */ #define GTF_MARGIN_PERCENTAGE 18 /* 2) character cell horizontal granularity (pixels) - default 8 */ #define GTF_CELL_GRAN 8 @@ -316,17 +310,9 @@ struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay, #define H_SYNC_PERCENT 8 /* min time of vsync + back porch (microsec) */ #define MIN_VSYNC_PLUS_BP 550 - /* blanking formula gradient */ -#define GTF_M 600 - /* blanking formula offset */ -#define GTF_C 40 - /* blanking formula scaling factor */ -#define GTF_K 128 - /* blanking formula scaling factor */ -#define GTF_J 20 /* C' and M' are part of the Blanking Duty Cycle computation */ -#define GTF_C_PRIME (((GTF_C - GTF_J) * GTF_K / 256) + GTF_J) -#define GTF_M_PRIME (GTF_K * GTF_M / 256) +#define GTF_C_PRIME ((((GTF_2C - GTF_2J) * GTF_K / 256) + GTF_2J) / 2) +#define GTF_M_PRIME (GTF_K * GTF_M / 256) struct drm_display_mode *drm_mode; unsigned int hdisplay_rnd, vdisplay_rnd, vfieldrate_rqd; int top_margin, bottom_margin; @@ -460,17 +446,61 @@ struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay, drm_mode->clock = pixel_freq; - drm_mode_set_name(drm_mode); - drm_mode->flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC; - if (interlaced) { drm_mode->vtotal *= 2; drm_mode->flags |= DRM_MODE_FLAG_INTERLACE; } + drm_mode_set_name(drm_mode); + if (GTF_M == 600 && GTF_2C == 80 && GTF_K == 128 && GTF_2J == 40) + drm_mode->flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC; + else + drm_mode->flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC; + return drm_mode; } +EXPORT_SYMBOL(drm_gtf_mode_complex); + +/** + * drm_gtf_mode - create the modeline based on GTF algorithm + * + * @dev :drm device + * @hdisplay :hdisplay size + * @vdisplay :vdisplay size + * @vrefresh :vrefresh rate. + * @interlaced :whether the interlace is supported + * @margins :whether the margin is supported + * + * LOCKING. + * none. + * + * return the modeline based on GTF algorithm + * + * This function is to create the modeline based on the GTF algorithm. + * Generalized Timing Formula is derived from: + * GTF Spreadsheet by Andy Morrish (1/5/97) + * available at http://www.vesa.org + * + * And it is copied from the file of xserver/hw/xfree86/modes/xf86gtf.c. + * What I have done is to translate it by using integer calculation. + * I also refer to the function of fb_get_mode in the file of + * drivers/video/fbmon.c + * + * Standard GTF parameters: + * M = 600 + * C = 40 + * K = 128 + * J = 20 + */ +struct drm_display_mode * +drm_gtf_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh, + bool lace, int margins) +{ + return drm_gtf_mode_complex(dev, hdisplay, vdisplay, vrefresh, lace, + margins, 600, 40 * 2, 128, 20 * 2); +} EXPORT_SYMBOL(drm_gtf_mode); + /** * drm_mode_set_name - set the name on a mode * @mode: name will be set in this mode @@ -482,8 +512,11 @@ EXPORT_SYMBOL(drm_gtf_mode); */ void drm_mode_set_name(struct drm_display_mode *mode) { - snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d", mode->hdisplay, - mode->vdisplay); + bool interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); + + snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d%s", + mode->hdisplay, mode->vdisplay, + interlaced ? "i" : ""); } EXPORT_SYMBOL(drm_mode_set_name); diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 1a1825b..49daf37 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -333,7 +333,7 @@ static struct device_attribute connector_attrs_opt1[] = { static struct bin_attribute edid_attr = { .attr.name = "edid", .attr.mode = 0444, - .size = 128, + .size = 0, .read = edid_show, }; diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 37db8ad..0f1fd92 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -450,17 +450,17 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) { int edid_info; struct edid *edid; + unsigned char *raw; edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE); if (!edid_info) return false; - edid = kmalloc(EDID_LENGTH * (DRM_MAX_EDID_EXT_NUM + 1), - GFP_KERNEL); + raw = rdev->bios + edid_info; + edid = kmalloc(EDID_LENGTH * (raw[0x7e] + 1), GFP_KERNEL); if (edid == NULL) return false; - memcpy((unsigned char *)edid, - (unsigned char *)(rdev->bios + edid_info), EDID_LENGTH); + memcpy((unsigned char *)edid, raw, EDID_LENGTH * (raw[0x7e] + 1)); if (!drm_edid_is_valid(edid)) { kfree(edid); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 1347524..8eb3630 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -666,8 +666,6 @@ extern void drm_fb_release(struct drm_file *file_priv); extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group); extern struct edid *drm_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter); -extern int drm_do_probe_ddc_edid(struct i2c_adapter *adapter, - unsigned char *buf, int len); extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode); extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode); @@ -799,6 +797,10 @@ extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh, bool interlaced, int margins); +extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev, + int hdisplay, int vdisplay, int vrefresh, + bool interlaced, int margins, int GTF_M, + int GTF_2C, int GTF_K, int GTF_2J); extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index b420989..d33c3e0 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -201,7 +201,4 @@ struct edid { #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8)) -/* define the number of Extension EDID block */ -#define DRM_MAX_EDID_EXT_NUM 4 - #endif /* __DRM_EDID_H__ */ |