| /linux-6.8/Documentation/userspace-api/media/v4l/ |
| D | vidioc-g-edid.rst | 13 VIDIOC_G_EDID - VIDIOC_S_EDID - VIDIOC_SUBDEV_G_EDID - VIDIOC_SUBDEV_S_EDID - Get or set the EDID o…
46 These ioctls can be used to get or set an EDID associated with an input
56 pad of the subdevice. If there is no EDID support for the given ``pad``
59 To get the EDID data the application has to fill in the ``pad``,
60 ``start_block``, ``blocks`` and ``edid`` fields, zero the ``reserved``
61 array and call :ref:`VIDIOC_G_EDID <VIDIOC_G_EDID>`. The current EDID from block
63 ``edid`` points to. The ``edid`` pointer must point to memory at least
67 ``blocks`` to the actual number of blocks. If there are no EDID blocks
75 total number of available EDID blocks and it will return 0 without
76 copying any data. This is an easy way to discover how many EDID blocks
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| /linux-6.8/drivers/media/i2c/adv748x/ |
| D | adv748x-hdmi.c | 473 static int adv748x_hdmi_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) in adv748x_hdmi_get_edid() argument
477 memset(edid->reserved, 0, sizeof(edid->reserved)); in adv748x_hdmi_get_edid()
479 if (!hdmi->edid.present) in adv748x_hdmi_get_edid()
482 if (edid->start_block == 0 && edid->blocks == 0) { in adv748x_hdmi_get_edid()
483 edid->blocks = hdmi->edid.blocks; in adv748x_hdmi_get_edid()
487 if (edid->start_block >= hdmi->edid.blocks) in adv748x_hdmi_get_edid()
490 if (edid->start_block + edid->blocks > hdmi->edid.blocks) in adv748x_hdmi_get_edid()
491 edid->blocks = hdmi->edid.blocks - edid->start_block; in adv748x_hdmi_get_edid()
493 memcpy(edid->edid, hdmi->edid.edid + edid->start_block * 128, in adv748x_hdmi_get_edid()
494 edid->blocks * 128); in adv748x_hdmi_get_edid()
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| /linux-6.8/drivers/gpu/drm/ |
| D | drm_edid.c | 61 * EDID blocks out in the wild have a variety of bugs, try to collect
191 /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
605 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
1581 * The opaque EDID type, internal to drm_edid.c.
1584 /* Size allocated for edid */
1586 const struct edid *edid; member
1589 static int edid_hfeeodb_extension_block_count(const struct edid *edid);
1591 static int edid_hfeeodb_block_count(const struct edid *edid) in edid_hfeeodb_block_count() argument
1593 int eeodb = edid_hfeeodb_extension_block_count(edid); in edid_hfeeodb_block_count()
1598 static int edid_extension_block_count(const struct edid *edid) in edid_extension_block_count() argument
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| /linux-6.8/drivers/gpu/drm/bridge/ |
| D | nxp-ptn3460.c | 94 /* Load the selected edid into SRAM (accessed at PTN3460_EDID_ADDR) */ in ptn3460_select_edid()
98 DRM_ERROR("Failed to transfer EDID to sram, ret=%d\n", ret); in ptn3460_select_edid()
102 /* Enable EDID emulation and select the desired EDID */ in ptn3460_select_edid()
108 DRM_ERROR("Failed to write EDID value, ret=%d\n", ret); in ptn3460_select_edid()
138 DRM_ERROR("Select EDID failed ret=%d\n", ret); in ptn3460_pre_enable()
157 static struct edid *ptn3460_get_edid(struct drm_bridge *bridge, in ptn3460_get_edid()
162 u8 *edid; in ptn3460_get_edid() local
168 edid = kmalloc(EDID_LENGTH, GFP_KERNEL); in ptn3460_get_edid()
169 if (!edid) { in ptn3460_get_edid()
170 DRM_ERROR("Failed to allocate EDID\n"); in ptn3460_get_edid()
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| D | simple-bridge.c | 54 struct edid *edid; in simple_bridge_get_modes() local
58 edid = drm_bridge_get_edid(sbridge->next_bridge, connector); in simple_bridge_get_modes()
59 if (!edid) in simple_bridge_get_modes()
60 DRM_INFO("EDID read failed. Fallback to standard modes\n"); in simple_bridge_get_modes()
62 edid = NULL; in simple_bridge_get_modes()
65 if (!edid) { in simple_bridge_get_modes()
76 drm_connector_update_edid_property(connector, edid); in simple_bridge_get_modes()
77 ret = drm_add_edid_modes(connector, edid); in simple_bridge_get_modes()
78 kfree(edid); in simple_bridge_get_modes()
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| /linux-6.8/Documentation/admin-guide/ |
| D | edid.rst | 4 EDID title
16 - The graphics board is unable to detect any EDID data.
17 - The graphics board incorrectly forwards EDID data to the driver.
18 - The monitor sends no or bogus EDID data.
19 - A KVM sends its own EDID data instead of querying the connected monitor.
26 individually prepared or corrected EDID data set in the /lib/firmware
32 of the built-in binary EDID blobs and to facilitate the creation of
36 To create binary EDID and C source code files from the existing data
37 material, simply type "make" in tools/edid/.
39 If you want to create your own EDID file, copy the file 1024x768.S,
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| /linux-6.8/Documentation/devicetree/bindings/media/i2c/ |
| D | adv7604.yaml | 36 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
37 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
38 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
39 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
40 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
41 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
42 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
43 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
44 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
45 - enum: [ avlink, cec, infoframe, esdp, dpp, afe, rep, edid, hdmi, test, cp, vdp ]
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| D | adv748x.yaml | 38 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
39 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
40 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
41 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
42 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
43 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
44 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
45 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
46 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
47 - enum: [ dpll, cp, hdmi, edid, repeater, infoframe, cbus, cec, sdp, txa, txb ]
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| /linux-6.8/drivers/gpu/drm/msm/dp/ |
| D | dp_panel.c | 106 struct edid *edid) in dp_panel_update_modes() argument
110 if (edid) { in dp_panel_update_modes()
111 rc = drm_connector_update_edid_property(connector, edid); in dp_panel_update_modes()
113 DRM_ERROR("failed to update edid property %d\n", rc); in dp_panel_update_modes()
116 rc = drm_add_edid_modes(connector, edid); in dp_panel_update_modes()
122 DRM_ERROR("failed to update edid property %d\n", rc); in dp_panel_update_modes()
169 kfree(dp_panel->edid); in dp_panel_read_sink_caps()
170 dp_panel->edid = NULL; in dp_panel_read_sink_caps()
172 dp_panel->edid = drm_get_edid(connector, in dp_panel_read_sink_caps()
174 if (!dp_panel->edid) { in dp_panel_read_sink_caps()
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| /linux-6.8/include/drm/ |
| D | drm_edid.h | 272 struct edid { struct
280 /* EDID version */
327 int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads); argument
328 int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb);
332 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2);
409 struct edid *drm_do_get_edid(struct drm_connector *connector,
413 struct edid *drm_get_edid(struct drm_connector *connector,
416 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
418 struct edid *drm_edid_duplicate(const struct edid *edid);
419 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
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| /linux-6.8/drivers/gpu/drm/i915/gvt/ |
| D | edid.c | 54 struct intel_vgpu_i2c_edid *edid = &vgpu->display.i2c_edid; in edid_get_byte() local
57 if (edid->state == I2C_NOT_SPECIFIED || !edid->slave_selected) { in edid_get_byte()
58 gvt_vgpu_err("Driver tries to read EDID without proper sequence!\n"); in edid_get_byte()
61 if (edid->current_edid_read >= EDID_SIZE) { in edid_get_byte()
62 gvt_vgpu_err("edid_get_byte() exceeds the size of EDID!\n"); in edid_get_byte()
66 if (!edid->edid_available) { in edid_get_byte()
67 gvt_vgpu_err("Reading EDID but EDID is not available!\n"); in edid_get_byte()
71 if (intel_vgpu_has_monitor_on_port(vgpu, edid->port)) { in edid_get_byte()
73 intel_vgpu_port(vgpu, edid->port)->edid; in edid_get_byte()
75 chr = edid_data->edid_block[edid->current_edid_read]; in edid_get_byte()
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| /linux-6.8/drivers/gpu/drm/gma500/ |
| D | psb_intel_modes.c | 50 * Fetch the EDID information from @connector using the DDC bus.
55 struct edid *edid; in psb_intel_ddc_get_modes() local
58 edid = drm_get_edid(connector, adapter); in psb_intel_ddc_get_modes()
59 if (edid) { in psb_intel_ddc_get_modes()
60 drm_connector_update_edid_property(connector, edid); in psb_intel_ddc_get_modes()
61 ret = drm_add_edid_modes(connector, edid); in psb_intel_ddc_get_modes()
62 kfree(edid); in psb_intel_ddc_get_modes()
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| D | cdv_intel_hdmi.c | 131 struct edid *edid = NULL; in cdv_hdmi_detect() local
134 edid = drm_get_edid(connector, connector->ddc); in cdv_hdmi_detect()
138 if (edid) { in cdv_hdmi_detect()
139 if (edid->input & DRM_EDID_INPUT_DIGITAL) { in cdv_hdmi_detect()
142 drm_detect_hdmi_monitor(edid); in cdv_hdmi_detect()
144 drm_detect_monitor_audio(edid); in cdv_hdmi_detect()
146 kfree(edid); in cdv_hdmi_detect()
212 struct edid *edid = NULL; in cdv_hdmi_get_modes() local
215 edid = drm_get_edid(connector, connector->ddc); in cdv_hdmi_get_modes()
216 if (edid) { in cdv_hdmi_get_modes()
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| /linux-6.8/include/media/ |
| D | cec.h | 197 * read the EDID and is not dependent on an external HDMI driver.
329 struct edid;
344 const struct edid *edid);
420 * @edid: pointer to the EDID data
421 * @size: size in bytes of the EDID data
423 * bytes in the EDID will be returned here. This is set to 0
428 u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
456 const struct edid *edid) in cec_s_phys_addr_from_edid() argument
460 static inline u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size, in cec_get_edid_phys_addr() argument
498 * @edid: the EDID
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| D | cec-notifier.h | 16 struct edid;
89 * cec_notifier_set_phys_addr_from_edid - set parse the PA from the EDID.
91 * @edid: the struct edid pointer
93 * Parses the EDID to obtain the new CEC physical address and set it.
97 const struct edid *edid);
142 const struct edid *edid) in cec_notifier_set_phys_addr_from_edid() argument
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| /linux-6.8/drivers/video/fbdev/core/ |
| D | fbmon.c | 8 * The EDID Parser is a conglomeration from the following sources:
33 #include <video/edid.h>
36 #include "../edid.h"
39 * EDID parser
42 #undef DEBUG /* define this for verbose EDID parsing output */
145 static int check_edid(unsigned char *edid) in check_edid() argument
147 unsigned char *block = edid + ID_MANUFACTURER_NAME, manufacturer[4]; in check_edid()
170 if (edid[i] != edid_v1_header[i]) { in check_edid()
177 b = edid + EDID_STRUCT_DISPLAY; in check_edid()
184 b = edid + DETAILED_TIMING_DESCRIPTIONS_START; in check_edid()
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| D | fb_ddc.c | 2 * drivers/video/fb_ddc.c - DDC/EDID read support.
18 #include "../edid.h"
41 dev_warn(&adapter->dev, "unable to allocate memory for EDID " in fb_do_probe_ddc_edid()
49 dev_warn(&adapter->dev, "unable to read EDID block.\n"); in fb_do_probe_ddc_edid()
57 unsigned char *edid = NULL; in fb_ddc_read() local
90 edid = fb_do_probe_ddc_edid(adapter); in fb_ddc_read()
110 if (edid) in fb_ddc_read()
119 return edid; in fb_ddc_read()
125 MODULE_DESCRIPTION("DDC/EDID reading support");
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| /linux-6.8/drivers/gpu/drm/tegra/ |
| D | output.c | 23 struct edid *edid = NULL; in tegra_output_connector_get_modes() local
36 if (output->edid) in tegra_output_connector_get_modes()
37 edid = kmemdup(output->edid, sizeof(*edid), GFP_KERNEL); in tegra_output_connector_get_modes()
39 edid = drm_get_edid(connector, output->ddc); in tegra_output_connector_get_modes()
41 cec_notifier_set_phys_addr_from_edid(output->cec, edid); in tegra_output_connector_get_modes()
42 drm_connector_update_edid_property(connector, edid); in tegra_output_connector_get_modes()
44 if (edid) { in tegra_output_connector_get_modes()
45 err = drm_add_edid_modes(connector, edid); in tegra_output_connector_get_modes()
46 kfree(edid); in tegra_output_connector_get_modes()
126 output->edid = of_get_property(output->of_node, "nvidia,edid", &size); in tegra_output_probe()
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| /linux-6.8/drivers/media/i2c/ |
| D | adv7511-v4l2.c | 76 /* Number of EDID read retries left */
119 struct adv7511_state_edid edid; member
548 struct adv7511_state_edid *edid = &state->edid; in adv7511_log_status() local
553 "reading EDID", in adv7511_log_status()
574 v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n", in adv7511_log_status()
577 edid->segments ? "found" : "no", in adv7511_log_status()
578 edid->blocks); in adv7511_log_status()
618 v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr); in adv7511_log_status()
688 /* Set number of attempts to read the EDID */ in adv7511_s_power()
884 /* The datasheet says that the EDID ready interrupt should be in adv7511_set_isr()
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| /linux-6.8/drivers/video/fbdev/via/ |
| D | via_aux_edid.c | 6 * generic EDID driver
12 #include "../edid.h"
15 static const char *name = "EDID";
21 unsigned char edid[EDID_LENGTH]; in query_edid() local
33 if (via_aux_read(drv, 0x00, edid, EDID_LENGTH)) { in query_edid()
34 fb_edid_to_monspecs(edid, spec); in query_edid()
42 printk(KERN_DEBUG "EDID: %s %s\n", spec->manufacturer, spec->monitor); in query_edid()
83 /* as EDID devices can be connected/disconnected just add the driver */ in via_aux_edid_probe()
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| /linux-6.8/drivers/gpu/drm/nouveau/ |
| D | nouveau_connector.c | 139 /* We allow 'None' for EDID modes, even on a fixed in nouveau_conn_atomic_set_property()
144 * Non-EDID modes will force the use of GPU scaling in nouveau_conn_atomic_set_property()
400 kfree(nv_connector->edid); in nouveau_connector_destroy()
489 const void *edid = of_get_property(cn, "EDID", NULL); in nouveau_connector_of_detect() local
492 if (nv_encoder->dcb->i2c_index == idx && edid) { in nouveau_connector_of_detect()
493 nv_connector->edid = in nouveau_connector_of_detect()
494 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); in nouveau_connector_of_detect()
552 struct edid *edid) in nouveau_connector_set_edid() argument
554 if (nv_connector->edid != edid) { in nouveau_connector_set_edid()
555 struct edid *old_edid = nv_connector->edid; in nouveau_connector_set_edid()
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| /linux-6.8/drivers/gpu/drm/exynos/ |
| D | exynos_drm_vidi.c | 44 struct edid *raw_edid;
198 /* use fake edid data for test. */ in vidi_store_connection()
200 ctx->raw_edid = (struct edid *)fake_edid_info; in vidi_store_connection()
203 if (ctx->raw_edid != (struct edid *)fake_edid_info) { in vidi_store_connection()
204 DRM_DEV_DEBUG_KMS(dev, "edid data is not fake data.\n"); in vidi_store_connection()
249 struct edid *raw_edid; in vidi_connection_ioctl()
251 raw_edid = (struct edid *)(unsigned long)vidi->edid; in vidi_connection_ioctl()
254 "edid data is invalid.\n"); in vidi_connection_ioctl()
266 * only if raw edid data isn't same as fake data. in vidi_connection_ioctl()
269 (struct edid *)fake_edid_info) { in vidi_connection_ioctl()
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| /linux-6.8/drivers/video/fbdev/nvidia/ |
| D | nv_of.c | 26 #include "../edid.h"
34 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", in nvidia_probe_of_connector()
35 "EDID,B", "EDID,A", NULL }; in nvidia_probe_of_connector()
74 printk(KERN_DEBUG "nvidiafb: Found OF EDID for head %d\n", conn); in nvidia_probe_of_connector()
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| /linux-6.8/drivers/gpu/drm/amd/display/amdgpu_dm/ |
| D | amdgpu_dm_helpers.c | 48 static u32 edid_extract_panel_id(struct edid *edid) in edid_extract_panel_id() argument
50 return (u32)edid->mfg_id[0] << 24 | in edid_extract_panel_id()
51 (u32)edid->mfg_id[1] << 16 | in edid_extract_panel_id()
52 (u32)EDID_PRODUCT_ID(edid); in edid_extract_panel_id()
55 static void apply_edid_quirks(struct edid *edid, struct dc_edid_caps *edid_caps) in apply_edid_quirks() argument
57 uint32_t panel_id = edid_extract_panel_id(edid); in apply_edid_quirks()
81 * dm_helpers_parse_edid_caps() - Parse edid caps
84 * @edid: [in] pointer to edid
85 * @edid_caps: [in] pointer to edid caps
91 const struct dc_edid *edid, in dm_helpers_parse_edid_caps() argument
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| /linux-6.8/Documentation/fb/ |
| D | udlfb.rst | 22 Mode setting, EDID read, etc are other bulk or control transfers. Mode
59 DisplayLink chips (Alex and Ollie family). It will then attempt to read the EDID
139 edid If a valid EDID blob is written to this file (typically
140 by a udev rule), then udlfb will use this EDID as a
141 backup in case reading the actual EDID of the monitor
144 communicate their capabilities via EDID. Reading
145 this file returns the current EDID of the attached
147 useful to get the EDID of the attached monitor,
148 which can be passed to utilities like parse-edid.
|