diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | 162 |
1 files changed, 32 insertions, 130 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index 506a97e16956..b7ee63cd8dc7 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -33,7 +33,7 @@ #include "include/vector.h" #include "core_types.h" #include "dc_link_ddc.h" -#include "aux_engine.h" +#include "dce/dce_aux.h" #define AUX_POWER_UP_WA_DELAY 500 #define I2C_OVER_AUX_DEFER_WA_DELAY 70 @@ -42,7 +42,6 @@ #define CV_SMART_DONGLE_ADDRESS 0x20 /* DVI-HDMI dongle slave address for retrieving dongle signature*/ #define DVI_HDMI_DONGLE_ADDRESS 0x68 -static const int8_t dvi_hdmi_dongle_signature_str[] = "6140063500G"; struct dvi_hdmi_dongle_signature_data { int8_t vendor[3];/* "AMD" */ uint8_t version[2]; @@ -165,43 +164,6 @@ static void dal_ddc_i2c_payloads_destroy(struct i2c_payloads **p) } -static struct aux_payloads *dal_ddc_aux_payloads_create(struct dc_context *ctx, uint32_t count) -{ - struct aux_payloads *payloads; - - payloads = kzalloc(sizeof(struct aux_payloads), GFP_KERNEL); - - if (!payloads) - return NULL; - - if (dal_vector_construct( - &payloads->payloads, ctx, count, sizeof(struct aux_payload))) - return payloads; - - kfree(payloads); - return NULL; -} - -static struct aux_payload *dal_ddc_aux_payloads_get(struct aux_payloads *p) -{ - return (struct aux_payload *)p->payloads.container; -} - -static uint32_t dal_ddc_aux_payloads_get_count(struct aux_payloads *p) -{ - return p->payloads.count; -} - -static void dal_ddc_aux_payloads_destroy(struct aux_payloads **p) -{ - if (!p || !*p) - return; - - dal_vector_destruct(&(*p)->payloads); - kfree(*p); - *p = NULL; -} - #define DDC_MIN(a, b) (((a) < (b)) ? (a) : (b)) void dal_ddc_i2c_payloads_add( @@ -225,27 +187,6 @@ void dal_ddc_i2c_payloads_add( } -void dal_ddc_aux_payloads_add( - struct aux_payloads *payloads, - uint32_t address, - uint32_t len, - uint8_t *data, - bool write) -{ - uint32_t payload_size = DEFAULT_AUX_MAX_DATA_SIZE; - uint32_t pos; - - for (pos = 0; pos < len; pos += payload_size) { - struct aux_payload payload = { - .i2c_over_aux = true, - .write = write, - .address = address, - .length = DDC_MIN(payload_size, len - pos), - .data = data + pos }; - dal_vector_append(&payloads->payloads, &payload); - } -} - static void construct( struct ddc_service *ddc_service, struct ddc_service_init_data *init_data) @@ -574,32 +515,34 @@ bool dal_ddc_service_query_ddc_data( /*TODO: len of payload data for i2c and aux is uint8!!!!, * but we want to read 256 over i2c!!!!*/ if (dal_ddc_service_is_in_aux_transaction_mode(ddc)) { - - struct aux_payloads *payloads = - dal_ddc_aux_payloads_create(ddc->ctx, payloads_num); - - struct aux_command command = { - .payloads = dal_ddc_aux_payloads_get(payloads), - .number_of_payloads = 0, + struct aux_payload write_payload = { + .i2c_over_aux = true, + .write = true, + .mot = true, + .address = address, + .length = write_size, + .data = write_buf, + .reply = NULL, .defer_delay = get_defer_delay(ddc), - .max_defer_write_retry = 0 }; + }; - dal_ddc_aux_payloads_add( - payloads, address, write_size, write_buf, true); - - dal_ddc_aux_payloads_add( - payloads, address, read_size, read_buf, false); - - command.number_of_payloads = - dal_ddc_aux_payloads_get_count(payloads); + struct aux_payload read_payload = { + .i2c_over_aux = true, + .write = false, + .mot = false, + .address = address, + .length = read_size, + .data = read_buf, + .reply = NULL, + .defer_delay = get_defer_delay(ddc), + }; - ret = dal_i2caux_submit_aux_command( - ddc->ctx->i2caux, - ddc->ddc_pin, - &command); + ret = dc_link_aux_transfer_with_retries(ddc, &write_payload); - dal_ddc_aux_payloads_destroy(&payloads); + if (!ret) + return false; + ret = dc_link_aux_transfer_with_retries(ddc, &read_payload); } else { struct i2c_payloads *payloads = dal_ddc_i2c_payloads_create(ddc->ctx, payloads_num); @@ -631,56 +574,15 @@ bool dal_ddc_service_query_ddc_data( } int dc_link_aux_transfer(struct ddc_service *ddc, - unsigned int address, - uint8_t *reply, - void *buffer, - unsigned int size, - enum aux_transaction_type type, - enum i2caux_transaction_action action) + struct aux_payload *payload) { - struct ddc *ddc_pin = ddc->ddc_pin; - struct aux_engine *aux_engine; - enum aux_channel_operation_result operation_result; - struct aux_request_transaction_data aux_req; - struct aux_reply_transaction_data aux_rep; - uint8_t returned_bytes = 0; - int res = -1; - uint32_t status; - - memset(&aux_req, 0, sizeof(aux_req)); - memset(&aux_rep, 0, sizeof(aux_rep)); - - aux_engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en]; - aux_engine->funcs->acquire(aux_engine, ddc_pin); - - aux_req.type = type; - aux_req.action = action; - - aux_req.address = address; - aux_req.delay = 0; - aux_req.length = size; - aux_req.data = buffer; - - aux_engine->funcs->submit_channel_request(aux_engine, &aux_req); - operation_result = aux_engine->funcs->get_channel_status(aux_engine, &returned_bytes); - - switch (operation_result) { - case AUX_CHANNEL_OPERATION_SUCCEEDED: - res = aux_engine->funcs->read_channel_reply(aux_engine, size, - buffer, reply, - &status); - break; - case AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON: - res = 0; - break; - case AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN: - case AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY: - case AUX_CHANNEL_OPERATION_FAILED_TIMEOUT: - res = -1; - break; - } - aux_engine->funcs->release_engine(aux_engine); - return res; + return dce_aux_transfer(ddc, payload); +} + +bool dc_link_aux_transfer_with_retries(struct ddc_service *ddc, + struct aux_payload *payload) +{ + return dce_aux_transfer_with_retries(ddc, payload); } /*test only function*/ |