| /linux-5.10/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-5.10/drivers/media/i2c/adv748x/ |
| D | adv748x-hdmi.c | 462 static int adv748x_hdmi_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) in adv748x_hdmi_get_edid() argument
466 memset(edid->reserved, 0, sizeof(edid->reserved)); in adv748x_hdmi_get_edid()
468 if (!hdmi->edid.present) in adv748x_hdmi_get_edid()
471 if (edid->start_block == 0 && edid->blocks == 0) { in adv748x_hdmi_get_edid()
472 edid->blocks = hdmi->edid.blocks; in adv748x_hdmi_get_edid()
476 if (edid->start_block >= hdmi->edid.blocks) in adv748x_hdmi_get_edid()
479 if (edid->start_block + edid->blocks > hdmi->edid.blocks) in adv748x_hdmi_get_edid()
480 edid->blocks = hdmi->edid.blocks - edid->start_block; in adv748x_hdmi_get_edid()
482 memcpy(edid->edid, hdmi->edid.edid + edid->start_block * 128, in adv748x_hdmi_get_edid()
483 edid->blocks * 128); in adv748x_hdmi_get_edid()
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| /linux-5.10/drivers/gpu/drm/ |
| D | drm_edid.c | 47 #define version_greater(edid, maj, min) \ argument
48 (((edid)->version > (maj)) || \
49 ((edid)->version == (maj) && (edid)->revision > (min)))
56 * EDID blocks out in the wild have a variety of bugs, try to collect
91 struct edid *edid; member
168 /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
583 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
1563 * drm_edid_header_is_valid - sanity check the header of the base EDID block
1564 * @raw_edid: pointer to raw base EDID block
1566 * Sanity check the header of the base EDID block.
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| D | drm_edid_load.c | 3 drm_edid_load.c: use a built-in EDID data set or load it via the firmware
22 MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
43 "edid/800x600.bin",
44 "edid/1024x768.bin",
45 "edid/1280x1024.bin",
46 "edid/1600x1200.bin",
47 "edid/1680x1050.bin",
48 "edid/1920x1080.bin",
162 static int edid_size(const u8 *edid, int data_size) in edid_size() argument
167 return (edid[0x7e] + 1) * EDID_LENGTH; in edid_size()
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| /linux-5.10/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-5.10/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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| /linux-5.10/drivers/gpu/drm/msm/dp/ |
| D | dp_panel.c | 133 struct edid *edid) in dp_panel_update_modes() argument
137 if (edid) { in dp_panel_update_modes()
138 rc = drm_connector_update_edid_property(connector, edid); in dp_panel_update_modes()
140 DRM_ERROR("failed to update edid property %d\n", rc); in dp_panel_update_modes()
143 rc = drm_add_edid_modes(connector, edid); in dp_panel_update_modes()
150 DRM_ERROR("failed to update edid property %d\n", rc); in dp_panel_update_modes()
192 kfree(dp_panel->edid); in dp_panel_read_sink_caps()
193 dp_panel->edid = NULL; in dp_panel_read_sink_caps()
195 dp_panel->edid = drm_get_edid(connector, in dp_panel_read_sink_caps()
197 if (!dp_panel->edid) { in dp_panel_read_sink_caps()
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| /linux-5.10/drivers/gpu/drm/udl/ |
| D | udl_connector.c | 35 DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret); in udl_get_edid_block()
53 drm_connector_update_edid_property(connector, udl_connector->edid); in udl_get_modes()
54 if (udl_connector->edid) in udl_get_modes()
55 return drm_add_edid_modes(connector, udl_connector->edid); in udl_get_modes()
81 /* cleanup previous edid */ in udl_detect()
82 if (udl_connector->edid != NULL) { in udl_detect()
83 kfree(udl_connector->edid); in udl_detect()
84 udl_connector->edid = NULL; in udl_detect()
87 udl_connector->edid = drm_do_get_edid(connector, udl_get_edid_block, udl); in udl_detect()
88 if (!udl_connector->edid) in udl_detect()
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| /linux-5.10/include/media/ |
| D | cec.h | 177 * read the EDID and is not dependent on an external HDMI driver.
287 struct edid;
302 const struct edid *edid);
378 * @edid: pointer to the EDID data
379 * @size: size in bytes of the EDID data
381 * bytes in the EDID will be returned here. This is set to 0
386 u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
414 const struct edid *edid) in cec_s_phys_addr_from_edid() argument
418 static inline u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size, in cec_get_edid_phys_addr() argument
456 * @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-5.10/drivers/gpu/drm/gma500/ |
| D | psb_intel_modes.c | 47 * Fetch the EDID information from @connector using the DDC bus.
52 struct edid *edid; in psb_intel_ddc_get_modes() local
55 edid = drm_get_edid(connector, adapter); in psb_intel_ddc_get_modes()
56 if (edid) { in psb_intel_ddc_get_modes()
57 drm_connector_update_edid_property(connector, edid); in psb_intel_ddc_get_modes()
58 ret = drm_add_edid_modes(connector, edid); in psb_intel_ddc_get_modes()
59 kfree(edid); in psb_intel_ddc_get_modes()
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| D | cdv_intel_hdmi.c | 134 struct edid *edid = NULL; in cdv_hdmi_detect() local
137 edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter); in cdv_hdmi_detect()
141 if (edid) { in cdv_hdmi_detect()
142 if (edid->input & DRM_EDID_INPUT_DIGITAL) { in cdv_hdmi_detect()
145 drm_detect_hdmi_monitor(edid); in cdv_hdmi_detect()
147 drm_detect_monitor_audio(edid); in cdv_hdmi_detect()
149 kfree(edid); in cdv_hdmi_detect()
216 struct edid *edid = NULL; in cdv_hdmi_get_modes() local
219 edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter); in cdv_hdmi_get_modes()
220 if (edid) { in cdv_hdmi_get_modes()
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| /linux-5.10/drivers/gpu/drm/i915/display/ |
| D | intel_connector.c | 100 if (!IS_ERR_OR_NULL(intel_connector->edid)) in intel_connector_destroy()
101 kfree(intel_connector->edid); in intel_connector_destroy()
178 * intel_connector_update_modes - update connector from edid
180 * @edid: previously read EDID information
183 struct edid *edid) in intel_connector_update_modes() argument
187 drm_connector_update_edid_property(connector, edid); in intel_connector_update_modes()
188 ret = drm_add_edid_modes(connector, edid); in intel_connector_update_modes()
198 * Fetch the EDID information from @connector using the DDC bus.
203 struct edid *edid; in intel_ddc_get_modes() local
206 edid = drm_get_edid(connector, adapter); in intel_ddc_get_modes()
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| /linux-5.10/drivers/gpu/drm/i915/gvt/ |
| D | edid.c | 51 struct intel_vgpu_i2c_edid *edid = &vgpu->display.i2c_edid; in edid_get_byte() local
54 if (edid->state == I2C_NOT_SPECIFIED || !edid->slave_selected) { in edid_get_byte()
55 gvt_vgpu_err("Driver tries to read EDID without proper sequence!\n"); in edid_get_byte()
58 if (edid->current_edid_read >= EDID_SIZE) { in edid_get_byte()
59 gvt_vgpu_err("edid_get_byte() exceeds the size of EDID!\n"); in edid_get_byte()
63 if (!edid->edid_available) { in edid_get_byte()
64 gvt_vgpu_err("Reading EDID but EDID is not available!\n"); in edid_get_byte()
68 if (intel_vgpu_has_monitor_on_port(vgpu, edid->port)) { in edid_get_byte()
70 intel_vgpu_port(vgpu, edid->port)->edid; in edid_get_byte()
72 chr = edid_data->edid_block[edid->current_edid_read]; in edid_get_byte()
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| /linux-5.10/drivers/gpu/drm/amd/display/amdgpu_dm/ |
| D | amdgpu_dm_helpers.c | 46 * Parse edid caps
48 * @edid: [in] pointer to edid
49 * edid_caps: [in] pointer to edid caps
55 const struct dc_edid *edid, in dm_helpers_parse_edid_caps() argument
58 struct edid *edid_buf = (struct edid *) edid->raw_edid; in dm_helpers_parse_edid_caps()
68 if (!edid_caps || !edid) in dm_helpers_parse_edid_caps()
98 (struct edid *) edid->raw_edid); in dm_helpers_parse_edid_caps()
100 sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads); in dm_helpers_parse_edid_caps()
114 sadb_count = drm_edid_to_speaker_allocation((struct edid *) edid->raw_edid, &sadb); in dm_helpers_parse_edid_caps()
561 struct edid *edid; in dm_helpers_read_local_edid() local
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| /linux-5.10/drivers/media/i2c/ |
| D | ad9389b.c | 63 /* Number of EDID read retries left */
86 struct ad9389b_state_edid edid; member
343 struct ad9389b_state_edid *edid = &state->edid; in ad9389b_log_status() local
347 "reading EDID", in ad9389b_log_status()
371 v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n", in ad9389b_log_status()
376 edid->segments ? "found" : "no", edid->blocks); in ad9389b_log_status()
491 /* Set number of attempts to read the EDID */ in ad9389b_s_power()
503 /* The datasheet says that the EDID ready interrupt should be in ad9389b_set_isr()
664 static int ad9389b_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) in ad9389b_get_edid() argument
668 if (edid->pad != 0) in ad9389b_get_edid()
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| D | adv7511-v4l2.c | 77 /* Number of EDID read retries left */
120 struct adv7511_state_edid edid; member
582 struct adv7511_state_edid *edid = &state->edid; in adv7511_log_status() local
587 "reading EDID", in adv7511_log_status()
608 v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n", in adv7511_log_status()
611 edid->segments ? "found" : "no", in adv7511_log_status()
612 edid->blocks); in adv7511_log_status()
652 v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr); in adv7511_log_status()
722 /* Set number of attempts to read the EDID */ in adv7511_s_power()
918 /* The datasheet says that the EDID ready interrupt should be in adv7511_set_isr()
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| /linux-5.10/include/drm/ |
| D | drm_edid.h | 290 struct edid { struct
298 /* EDID version */
345 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads); argument
346 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb);
351 struct edid *drm_load_edid_firmware(struct drm_connector *connector);
355 static inline struct edid *
362 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2);
482 struct edid *drm_do_get_edid(struct drm_connector *connector,
486 struct edid *drm_get_edid(struct drm_connector *connector,
488 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
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| /linux-5.10/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()
120 return edid; in fb_ddc_read()
126 MODULE_DESCRIPTION("DDC/EDID reading support");
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| /linux-5.10/drivers/gpu/drm/tegra/ |
| D | output.c | 20 struct edid *edid = NULL; in tegra_output_connector_get_modes() local
33 if (output->edid) in tegra_output_connector_get_modes()
34 edid = kmemdup(output->edid, sizeof(*edid), GFP_KERNEL); in tegra_output_connector_get_modes()
36 edid = drm_get_edid(connector, output->ddc); in tegra_output_connector_get_modes()
38 cec_notifier_set_phys_addr_from_edid(output->cec, edid); in tegra_output_connector_get_modes()
39 drm_connector_update_edid_property(connector, edid); in tegra_output_connector_get_modes()
41 if (edid) { in tegra_output_connector_get_modes()
42 err = drm_add_edid_modes(connector, edid); in tegra_output_connector_get_modes()
43 kfree(edid); in tegra_output_connector_get_modes()
123 output->edid = of_get_property(output->of_node, "nvidia,edid", &size); in tegra_output_probe()
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| /linux-5.10/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-5.10/drivers/gpu/drm/nouveau/ |
| D | nouveau_connector.c | 140 /* We allow 'None' for EDID modes, even on a fixed in nouveau_conn_atomic_set_property()
145 * Non-EDID modes will force the use of GPU scaling in nouveau_conn_atomic_set_property()
399 kfree(nv_connector->edid); in nouveau_connector_destroy()
472 const void *edid = of_get_property(cn, "EDID", NULL); in nouveau_connector_of_detect() local
475 if (nv_encoder->dcb->i2c_index == idx && edid) { in nouveau_connector_of_detect()
476 nv_connector->edid = in nouveau_connector_of_detect()
477 kmemdup(edid, EDID_LENGTH, GFP_KERNEL); in nouveau_connector_of_detect()
533 struct edid *edid) in nouveau_connector_set_edid() argument
535 if (nv_connector->edid != edid) { in nouveau_connector_set_edid()
536 struct edid *old_edid = nv_connector->edid; in nouveau_connector_set_edid()
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| /linux-5.10/drivers/gpu/drm/exynos/ |
| D | exynos_drm_vidi.c | 43 struct edid *raw_edid;
197 /* use fake edid data for test. */ in vidi_store_connection()
199 ctx->raw_edid = (struct edid *)fake_edid_info; in vidi_store_connection()
202 if (ctx->raw_edid != (struct edid *)fake_edid_info) { in vidi_store_connection()
203 DRM_DEV_DEBUG_KMS(dev, "edid data is not fake data.\n"); in vidi_store_connection()
248 struct edid *raw_edid; in vidi_connection_ioctl()
250 raw_edid = (struct edid *)(unsigned long)vidi->edid; in vidi_connection_ioctl()
253 "edid data is invalid.\n"); in vidi_connection_ioctl()
265 * only if raw edid data isn't same as fake data. in vidi_connection_ioctl()
268 (struct edid *)fake_edid_info) { in vidi_connection_ioctl()
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| /linux-5.10/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()
75 printk(KERN_DEBUG "nvidiafb: Found OF EDID for head %d\n", conn); in nvidia_probe_of_connector()
|