kopia lustrzana https://github.com/espressif/esp-idf
103 wiersze
4.5 KiB
C
103 wiersze
4.5 KiB
C
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdio.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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#include "unity.h"
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#include "test_utils.h"
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#include "test_usb_mock_classes.h"
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#include "test_hcd_common.h"
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#define NUM_URBS 3
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#define NUM_PACKETS_PER_URB 3
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#define ISOC_PACKET_SIZE MOCK_ISOC_EP_MPS
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#define URB_DATA_BUFF_SIZE (NUM_PACKETS_PER_URB * ISOC_PACKET_SIZE)
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/*
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Test HCD ISOC pipe URBs
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Purpose:
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- Test that an isochronous pipe can be created
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- URBs can be created and enqueued to the isoc pipe pipe
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- isoc pipe returns HCD_PIPE_EVENT_URB_DONE for completed URBs
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- Test utilizes ISOC OUT transfers and do not require ACKs. So the isoc pipe will target a non existing endpoint
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Procedure:
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- Setup HCD and wait for connection
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- Allocate default pipe and enumerate the device
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- Allocate an isochronous pipe and multiple URBs. Each URB should contain multiple packets to test HCD's ability to
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schedule an URB across multiple intervals.
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- Enqueue those URBs
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- Expect HCD_PIPE_EVENT_URB_DONE for each URB. Verify that data is correct using logic analyzer
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- Deallocate URBs
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- Teardown
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*/
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TEST_CASE("Test HCD isochronous pipe URBs", "[hcd][ignore]")
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{
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hcd_port_handle_t port_hdl = test_hcd_setup(); //Setup the HCD and port
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usb_speed_t port_speed = test_hcd_wait_for_conn(port_hdl); //Trigger a connection
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//The MPS of the ISOC OUT pipe is quite large, so we need to bias the FIFO sizing
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TEST_ASSERT_EQUAL(ESP_OK, hcd_port_set_fifo_bias(port_hdl, HCD_PORT_FIFO_BIAS_PTX));
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vTaskDelay(pdMS_TO_TICKS(100)); //Short delay send of SOF (for FS) or EOPs (for LS)
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//Enumerate and reset device
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hcd_pipe_handle_t default_pipe = test_hcd_pipe_alloc(port_hdl, NULL, 0, port_speed); //Create a default pipe (using a NULL EP descriptor)
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uint8_t dev_addr = test_hcd_enum_device(default_pipe);
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//Create ISOC OUT pipe to non-existent device
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hcd_pipe_handle_t isoc_out_pipe = test_hcd_pipe_alloc(port_hdl, &mock_isoc_out_ep_desc, dev_addr + 1, port_speed);
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//Create URBs
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urb_t *urb_list[NUM_URBS];
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//Initialize URBs
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for (int urb_idx = 0; urb_idx < NUM_URBS; urb_idx++) {
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urb_list[urb_idx] = test_hcd_alloc_urb(NUM_PACKETS_PER_URB, URB_DATA_BUFF_SIZE);
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urb_list[urb_idx]->transfer.num_bytes = 0; //num_bytes is not used for ISOC
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urb_list[urb_idx]->transfer.context = URB_CONTEXT_VAL;
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for (int pkt_idx = 0; pkt_idx < NUM_PACKETS_PER_URB; pkt_idx++) {
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urb_list[urb_idx]->transfer.isoc_packet_desc[pkt_idx].num_bytes = ISOC_PACKET_SIZE;
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//Each packet will consist of the same byte, but each subsequent packet's byte will increment (i.e., packet 0 transmits all 0x0, packet 1 transmits all 0x1)
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memset(&urb_list[urb_idx]->transfer.data_buffer[pkt_idx * ISOC_PACKET_SIZE], (urb_idx * NUM_URBS) + pkt_idx, ISOC_PACKET_SIZE);
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}
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}
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//Enqueue URBs
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for (int i = 0; i < NUM_URBS; i++) {
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TEST_ASSERT_EQUAL(ESP_OK, hcd_urb_enqueue(isoc_out_pipe, urb_list[i]));
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}
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//Wait for each done event from each URB
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for (int i = 0; i < NUM_URBS; i++) {
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test_hcd_expect_pipe_event(isoc_out_pipe, HCD_PIPE_EVENT_URB_DONE);
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}
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//Dequeue URBs
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for (int urb_idx = 0; urb_idx < NUM_URBS; urb_idx++) {
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urb_t *urb = hcd_urb_dequeue(isoc_out_pipe);
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TEST_ASSERT_EQUAL(urb_list[urb_idx], urb);
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TEST_ASSERT_EQUAL(URB_CONTEXT_VAL, urb->transfer.context);
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for (int pkt_idx = 0; pkt_idx < NUM_PACKETS_PER_URB; pkt_idx++) {
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TEST_ASSERT_EQUAL(USB_TRANSFER_STATUS_COMPLETED, urb->transfer.isoc_packet_desc[pkt_idx].status);
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}
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}
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//Free URB list and pipe
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for (int i = 0; i < NUM_URBS; i++) {
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test_hcd_free_urb(urb_list[i]);
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}
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test_hcd_pipe_free(isoc_out_pipe);
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test_hcd_pipe_free(default_pipe);
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//Cleanup
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test_hcd_wait_for_disconn(port_hdl, false);
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test_hcd_teardown(port_hdl);
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}
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