2 * Copyright 2012-15 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
26 #include "dm_services.h"
27 #include "dm_helpers.h"
28 #include "gpio_service_interface.h"
29 #include "include/ddc_service_types.h"
30 #include "include/grph_object_id.h"
31 #include "include/dpcd_defs.h"
32 #include "include/logger_interface.h"
33 #include "include/vector.h"
34 #include "core_types.h"
35 #include "dc_link_ddc.h"
37 #define AUX_POWER_UP_WA_DELAY 500
38 #define I2C_OVER_AUX_DEFER_WA_DELAY 70
40 /* CV smart dongle slave address for retrieving supported HDTV modes*/
41 #define CV_SMART_DONGLE_ADDRESS 0x20
42 /* DVI-HDMI dongle slave address for retrieving dongle signature*/
43 #define DVI_HDMI_DONGLE_ADDRESS 0x68
44 static const int8_t dvi_hdmi_dongle_signature_str[] = "6140063500G";
45 struct dvi_hdmi_dongle_signature_data {
46 int8_t vendor[3];/* "AMD" */
49 int8_t id[11];/* "6140063500G"*/
51 /* DP-HDMI dongle slave address for retrieving dongle signature*/
52 #define DP_HDMI_DONGLE_ADDRESS 0x40
53 static const uint8_t dp_hdmi_dongle_signature_str[] = "DP-HDMI ADAPTOR";
54 #define DP_HDMI_DONGLE_SIGNATURE_EOT 0x04
56 struct dp_hdmi_dongle_signature_data {
57 int8_t id[15];/* "DP-HDMI ADAPTOR"*/
58 uint8_t eot;/* end of transmition '\x4' */
61 /* SCDC Address defines (HDMI 2.0)*/
62 #define HDMI_SCDC_WRITE_UPDATE_0_ARRAY 3
63 #define HDMI_SCDC_ADDRESS 0x54
64 #define HDMI_SCDC_SINK_VERSION 0x01
65 #define HDMI_SCDC_SOURCE_VERSION 0x02
66 #define HDMI_SCDC_UPDATE_0 0x10
67 #define HDMI_SCDC_TMDS_CONFIG 0x20
68 #define HDMI_SCDC_SCRAMBLER_STATUS 0x21
69 #define HDMI_SCDC_CONFIG_0 0x30
70 #define HDMI_SCDC_STATUS_FLAGS 0x40
71 #define HDMI_SCDC_ERR_DETECT 0x50
72 #define HDMI_SCDC_TEST_CONFIG 0xC0
74 union hdmi_scdc_update_read_data {
77 uint8_t STATUS_UPDATE:1;
85 union hdmi_scdc_status_flags_data {
88 uint8_t CLOCK_DETECTED:1;
97 union hdmi_scdc_ced_data {
113 union hdmi_scdc_test_config_Data {
116 uint8_t TEST_READ_REQUEST_DELAY:7;
117 uint8_t TEST_READ_REQUEST: 1;
121 struct i2c_payloads {
122 struct vector payloads;
125 struct aux_payloads {
126 struct vector payloads;
129 static struct i2c_payloads *dal_ddc_i2c_payloads_create(struct dc_context *ctx, uint32_t count)
131 struct i2c_payloads *payloads;
133 payloads = kzalloc(sizeof(struct i2c_payloads), GFP_KERNEL);
138 if (dal_vector_construct(
139 &payloads->payloads, ctx, count, sizeof(struct i2c_payload)))
147 static struct i2c_payload *dal_ddc_i2c_payloads_get(struct i2c_payloads *p)
149 return (struct i2c_payload *)p->payloads.container;
152 static uint32_t dal_ddc_i2c_payloads_get_count(struct i2c_payloads *p)
154 return p->payloads.count;
157 static void dal_ddc_i2c_payloads_destroy(struct i2c_payloads **p)
161 dal_vector_destruct(&(*p)->payloads);
167 static struct aux_payloads *dal_ddc_aux_payloads_create(struct dc_context *ctx, uint32_t count)
169 struct aux_payloads *payloads;
171 payloads = kzalloc(sizeof(struct aux_payloads), GFP_KERNEL);
176 if (dal_vector_construct(
177 &payloads->payloads, ctx, count, sizeof(struct aux_payload)))
184 static struct aux_payload *dal_ddc_aux_payloads_get(struct aux_payloads *p)
186 return (struct aux_payload *)p->payloads.container;
189 static uint32_t dal_ddc_aux_payloads_get_count(struct aux_payloads *p)
191 return p->payloads.count;
194 static void dal_ddc_aux_payloads_destroy(struct aux_payloads **p)
199 dal_vector_destruct(&(*p)->payloads);
204 #define DDC_MIN(a, b) (((a) < (b)) ? (a) : (b))
206 void dal_ddc_i2c_payloads_add(
207 struct i2c_payloads *payloads,
213 uint32_t payload_size = EDID_SEGMENT_SIZE;
216 for (pos = 0; pos < len; pos += payload_size) {
217 struct i2c_payload payload = {
220 .length = DDC_MIN(payload_size, len - pos),
221 .data = data + pos };
222 dal_vector_append(&payloads->payloads, &payload);
227 void dal_ddc_aux_payloads_add(
228 struct aux_payloads *payloads,
234 uint32_t payload_size = DEFAULT_AUX_MAX_DATA_SIZE;
237 for (pos = 0; pos < len; pos += payload_size) {
238 struct aux_payload payload = {
239 .i2c_over_aux = true,
242 .length = DDC_MIN(payload_size, len - pos),
243 .data = data + pos };
244 dal_vector_append(&payloads->payloads, &payload);
248 static void construct(
249 struct ddc_service *ddc_service,
250 struct ddc_service_init_data *init_data)
252 enum connector_id connector_id =
253 dal_graphics_object_id_get_connector_id(init_data->id);
255 struct gpio_service *gpio_service = init_data->ctx->gpio_service;
256 struct graphics_object_i2c_info i2c_info;
257 struct gpio_ddc_hw_info hw_info;
258 struct dc_bios *dcb = init_data->ctx->dc_bios;
260 ddc_service->link = init_data->link;
261 ddc_service->ctx = init_data->ctx;
263 if (BP_RESULT_OK != dcb->funcs->get_i2c_info(dcb, init_data->id, &i2c_info)) {
264 ddc_service->ddc_pin = NULL;
266 hw_info.ddc_channel = i2c_info.i2c_line;
267 hw_info.hw_supported = i2c_info.i2c_hw_assist;
269 ddc_service->ddc_pin = dal_gpio_create_ddc(
271 i2c_info.gpio_info.clk_a_register_index,
272 1 << i2c_info.gpio_info.clk_a_shift,
276 ddc_service->flags.EDID_QUERY_DONE_ONCE = false;
277 ddc_service->flags.FORCE_READ_REPEATED_START = false;
278 ddc_service->flags.EDID_STRESS_READ = false;
280 ddc_service->flags.IS_INTERNAL_DISPLAY =
281 connector_id == CONNECTOR_ID_EDP ||
282 connector_id == CONNECTOR_ID_LVDS;
284 ddc_service->wa.raw = 0;
287 struct ddc_service *dal_ddc_service_create(
288 struct ddc_service_init_data *init_data)
290 struct ddc_service *ddc_service;
292 ddc_service = kzalloc(sizeof(struct ddc_service), GFP_KERNEL);
297 construct(ddc_service, init_data);
301 static void destruct(struct ddc_service *ddc)
304 dal_gpio_destroy_ddc(&ddc->ddc_pin);
307 void dal_ddc_service_destroy(struct ddc_service **ddc)
318 enum ddc_service_type dal_ddc_service_get_type(struct ddc_service *ddc)
320 return DDC_SERVICE_TYPE_CONNECTOR;
323 void dal_ddc_service_set_transaction_type(
324 struct ddc_service *ddc,
325 enum ddc_transaction_type type)
327 ddc->transaction_type = type;
330 bool dal_ddc_service_is_in_aux_transaction_mode(struct ddc_service *ddc)
332 switch (ddc->transaction_type) {
333 case DDC_TRANSACTION_TYPE_I2C_OVER_AUX:
334 case DDC_TRANSACTION_TYPE_I2C_OVER_AUX_WITH_DEFER:
335 case DDC_TRANSACTION_TYPE_I2C_OVER_AUX_RETRY_DEFER:
343 void ddc_service_set_dongle_type(struct ddc_service *ddc,
344 enum display_dongle_type dongle_type)
346 ddc->dongle_type = dongle_type;
349 static uint32_t defer_delay_converter_wa(
350 struct ddc_service *ddc,
351 uint32_t defer_delay)
353 struct dc_link *link = ddc->link;
355 if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_4 &&
356 !memcmp(link->dpcd_caps.branch_dev_name,
357 DP_DVI_CONVERTER_ID_4,
358 sizeof(link->dpcd_caps.branch_dev_name)))
359 return defer_delay > I2C_OVER_AUX_DEFER_WA_DELAY ?
360 defer_delay : I2C_OVER_AUX_DEFER_WA_DELAY;
365 #define DP_TRANSLATOR_DELAY 5
367 uint32_t get_defer_delay(struct ddc_service *ddc)
369 uint32_t defer_delay = 0;
371 switch (ddc->transaction_type) {
372 case DDC_TRANSACTION_TYPE_I2C_OVER_AUX:
373 if ((DISPLAY_DONGLE_DP_VGA_CONVERTER == ddc->dongle_type) ||
374 (DISPLAY_DONGLE_DP_DVI_CONVERTER == ddc->dongle_type) ||
375 (DISPLAY_DONGLE_DP_HDMI_CONVERTER ==
378 defer_delay = DP_TRANSLATOR_DELAY;
381 defer_delay_converter_wa(ddc, defer_delay);
383 } else /*sink has a delay different from an Active Converter*/
386 case DDC_TRANSACTION_TYPE_I2C_OVER_AUX_WITH_DEFER:
387 defer_delay = DP_TRANSLATOR_DELAY;
395 static bool i2c_read(
396 struct ddc_service *ddc,
401 uint8_t offs_data = 0;
402 struct i2c_payload payloads[2] = {
407 .data = &offs_data },
414 struct i2c_command command = {
415 .payloads = payloads,
416 .number_of_payloads = 2,
417 .engine = DDC_I2C_COMMAND_ENGINE,
418 .speed = ddc->ctx->dc->caps.i2c_speed_in_khz };
420 return dm_helpers_submit_i2c(
426 void dal_ddc_service_i2c_query_dp_dual_mode_adaptor(
427 struct ddc_service *ddc,
428 struct display_sink_capability *sink_cap)
431 bool is_valid_hdmi_signature;
432 enum display_dongle_type *dongle = &sink_cap->dongle_type;
433 uint8_t type2_dongle_buf[DP_ADAPTOR_TYPE2_SIZE];
434 bool is_type2_dongle = false;
435 struct dp_hdmi_dongle_signature_data *dongle_signature;
437 /* Assume we have no valid DP passive dongle connected */
438 *dongle = DISPLAY_DONGLE_NONE;
439 sink_cap->max_hdmi_pixel_clock = DP_ADAPTOR_HDMI_SAFE_MAX_TMDS_CLK;
441 /* Read DP-HDMI dongle I2c (no response interpreted as DP-DVI dongle)*/
444 DP_HDMI_DONGLE_ADDRESS,
446 sizeof(type2_dongle_buf))) {
447 *dongle = DISPLAY_DONGLE_DP_DVI_DONGLE;
448 sink_cap->max_hdmi_pixel_clock = DP_ADAPTOR_DVI_MAX_TMDS_CLK;
450 CONN_DATA_DETECT(ddc->link, type2_dongle_buf, sizeof(type2_dongle_buf),
451 "DP-DVI passive dongle %dMhz: ",
452 DP_ADAPTOR_DVI_MAX_TMDS_CLK / 1000);
456 /* Check if Type 2 dongle.*/
457 if (type2_dongle_buf[DP_ADAPTOR_TYPE2_REG_ID] == DP_ADAPTOR_TYPE2_ID)
458 is_type2_dongle = true;
461 (struct dp_hdmi_dongle_signature_data *)type2_dongle_buf;
463 is_valid_hdmi_signature = true;
466 if (dongle_signature->eot != DP_HDMI_DONGLE_SIGNATURE_EOT) {
467 is_valid_hdmi_signature = false;
470 /* Check signature */
471 for (i = 0; i < sizeof(dongle_signature->id); ++i) {
472 /* If its not the right signature,
473 * skip mismatch in subversion byte.*/
474 if (dongle_signature->id[i] !=
475 dp_hdmi_dongle_signature_str[i] && i != 3) {
477 if (is_type2_dongle) {
478 is_valid_hdmi_signature = false;
485 if (is_type2_dongle) {
486 uint32_t max_tmds_clk =
487 type2_dongle_buf[DP_ADAPTOR_TYPE2_REG_MAX_TMDS_CLK];
489 max_tmds_clk = max_tmds_clk * 2 + max_tmds_clk / 2;
491 if (0 == max_tmds_clk ||
492 max_tmds_clk < DP_ADAPTOR_TYPE2_MIN_TMDS_CLK ||
493 max_tmds_clk > DP_ADAPTOR_TYPE2_MAX_TMDS_CLK) {
494 *dongle = DISPLAY_DONGLE_DP_DVI_DONGLE;
496 CONN_DATA_DETECT(ddc->link, type2_dongle_buf,
497 sizeof(type2_dongle_buf),
498 "DP-DVI passive dongle %dMhz: ",
499 DP_ADAPTOR_DVI_MAX_TMDS_CLK / 1000);
501 if (is_valid_hdmi_signature == true) {
502 *dongle = DISPLAY_DONGLE_DP_HDMI_DONGLE;
504 CONN_DATA_DETECT(ddc->link, type2_dongle_buf,
505 sizeof(type2_dongle_buf),
506 "Type 2 DP-HDMI passive dongle %dMhz: ",
509 *dongle = DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE;
511 CONN_DATA_DETECT(ddc->link, type2_dongle_buf,
512 sizeof(type2_dongle_buf),
513 "Type 2 DP-HDMI passive dongle (no signature) %dMhz: ",
518 /* Multiply by 1000 to convert to kHz. */
519 sink_cap->max_hdmi_pixel_clock =
524 if (is_valid_hdmi_signature == true) {
525 *dongle = DISPLAY_DONGLE_DP_HDMI_DONGLE;
527 CONN_DATA_DETECT(ddc->link, type2_dongle_buf,
528 sizeof(type2_dongle_buf),
529 "Type 1 DP-HDMI passive dongle %dMhz: ",
530 sink_cap->max_hdmi_pixel_clock / 1000);
532 *dongle = DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE;
534 CONN_DATA_DETECT(ddc->link, type2_dongle_buf,
535 sizeof(type2_dongle_buf),
536 "Type 1 DP-HDMI passive dongle (no signature) %dMhz: ",
537 sink_cap->max_hdmi_pixel_clock / 1000);
546 DP_EDP_CONFIGURATION_CAP - DP_DPCD_REV + 1
549 bool dal_ddc_service_query_ddc_data(
550 struct ddc_service *ddc,
558 uint32_t payload_size =
559 dal_ddc_service_is_in_aux_transaction_mode(ddc) ?
560 DEFAULT_AUX_MAX_DATA_SIZE : EDID_SEGMENT_SIZE;
562 uint32_t write_payloads =
563 (write_size + payload_size - 1) / payload_size;
565 uint32_t read_payloads =
566 (read_size + payload_size - 1) / payload_size;
568 uint32_t payloads_num = write_payloads + read_payloads;
570 if (write_size > EDID_SEGMENT_SIZE || read_size > EDID_SEGMENT_SIZE)
573 /*TODO: len of payload data for i2c and aux is uint8!!!!,
574 * but we want to read 256 over i2c!!!!*/
575 if (dal_ddc_service_is_in_aux_transaction_mode(ddc)) {
577 struct aux_payloads *payloads =
578 dal_ddc_aux_payloads_create(ddc->ctx, payloads_num);
580 struct aux_command command = {
581 .payloads = dal_ddc_aux_payloads_get(payloads),
582 .number_of_payloads = 0,
583 .defer_delay = get_defer_delay(ddc),
584 .max_defer_write_retry = 0 };
586 dal_ddc_aux_payloads_add(
587 payloads, address, write_size, write_buf, true);
589 dal_ddc_aux_payloads_add(
590 payloads, address, read_size, read_buf, false);
592 command.number_of_payloads =
593 dal_ddc_aux_payloads_get_count(payloads);
595 ret = dal_i2caux_submit_aux_command(
600 dal_ddc_aux_payloads_destroy(&payloads);
603 struct i2c_payloads *payloads =
604 dal_ddc_i2c_payloads_create(ddc->ctx, payloads_num);
606 struct i2c_command command = {
607 .payloads = dal_ddc_i2c_payloads_get(payloads),
608 .number_of_payloads = 0,
609 .engine = DDC_I2C_COMMAND_ENGINE,
610 .speed = ddc->ctx->dc->caps.i2c_speed_in_khz };
612 dal_ddc_i2c_payloads_add(
613 payloads, address, write_size, write_buf, true);
615 dal_ddc_i2c_payloads_add(
616 payloads, address, read_size, read_buf, false);
618 command.number_of_payloads =
619 dal_ddc_i2c_payloads_get_count(payloads);
621 ret = dm_helpers_submit_i2c(
626 dal_ddc_i2c_payloads_destroy(&payloads);
632 enum ddc_result dal_ddc_service_read_dpcd_data(
633 struct ddc_service *ddc,
635 enum i2c_mot_mode mot,
641 struct aux_payload read_payload = {
648 struct aux_command command = {
649 .payloads = &read_payload,
650 .number_of_payloads = 1,
652 .max_defer_write_retry = 0,
658 if (len > DEFAULT_AUX_MAX_DATA_SIZE) {
660 return DDC_RESULT_FAILED_INVALID_OPERATION;
663 if (dal_i2caux_submit_aux_command(
667 *read = command.payloads->length;
668 return DDC_RESULT_SUCESSFULL;
671 return DDC_RESULT_FAILED_OPERATION;
674 enum ddc_result dal_ddc_service_write_dpcd_data(
675 struct ddc_service *ddc,
677 enum i2c_mot_mode mot,
682 struct aux_payload write_payload = {
687 .data = (uint8_t *)data,
689 struct aux_command command = {
690 .payloads = &write_payload,
691 .number_of_payloads = 1,
693 .max_defer_write_retry = 0,
697 if (len > DEFAULT_AUX_MAX_DATA_SIZE) {
699 return DDC_RESULT_FAILED_INVALID_OPERATION;
702 if (dal_i2caux_submit_aux_command(
706 return DDC_RESULT_SUCESSFULL;
708 return DDC_RESULT_FAILED_OPERATION;
711 /*test only function*/
712 void dal_ddc_service_set_ddc_pin(
713 struct ddc_service *ddc_service,
716 ddc_service->ddc_pin = ddc;
719 struct ddc *dal_ddc_service_get_ddc_pin(struct ddc_service *ddc_service)
721 return ddc_service->ddc_pin;
724 void dal_ddc_service_write_scdc_data(struct ddc_service *ddc_service,
726 bool lte_340_scramble)
728 bool over_340_mhz = pix_clk > 340000 ? 1 : 0;
729 uint8_t slave_address = HDMI_SCDC_ADDRESS;
730 uint8_t offset = HDMI_SCDC_SINK_VERSION;
731 uint8_t sink_version = 0;
732 uint8_t write_buffer[2] = {0};
733 /*Lower than 340 Scramble bit from SCDC caps*/
735 dal_ddc_service_query_ddc_data(ddc_service, slave_address, &offset,
736 sizeof(offset), &sink_version, sizeof(sink_version));
737 if (sink_version == 1) {
738 /*Source Version = 1*/
739 write_buffer[0] = HDMI_SCDC_SOURCE_VERSION;
741 dal_ddc_service_query_ddc_data(ddc_service, slave_address,
742 write_buffer, sizeof(write_buffer), NULL, 0);
743 /*Read Request from SCDC caps*/
745 write_buffer[0] = HDMI_SCDC_TMDS_CONFIG;
749 } else if (lte_340_scramble) {
754 dal_ddc_service_query_ddc_data(ddc_service, slave_address, write_buffer,
755 sizeof(write_buffer), NULL, 0);
758 void dal_ddc_service_read_scdc_data(struct ddc_service *ddc_service)
760 uint8_t slave_address = HDMI_SCDC_ADDRESS;
761 uint8_t offset = HDMI_SCDC_TMDS_CONFIG;
762 uint8_t tmds_config = 0;
764 dal_ddc_service_query_ddc_data(ddc_service, slave_address, &offset,
765 sizeof(offset), &tmds_config, sizeof(tmds_config));
766 if (tmds_config & 0x1) {
767 union hdmi_scdc_status_flags_data status_data = { {0} };
768 uint8_t scramble_status = 0;
770 offset = HDMI_SCDC_SCRAMBLER_STATUS;
771 dal_ddc_service_query_ddc_data(ddc_service, slave_address,
772 &offset, sizeof(offset), &scramble_status,
773 sizeof(scramble_status));
774 offset = HDMI_SCDC_STATUS_FLAGS;
775 dal_ddc_service_query_ddc_data(ddc_service, slave_address,
776 &offset, sizeof(offset), status_data.byte,
777 sizeof(status_data.byte));