esp-idf/components/usb/test/hcd/test_hcd_common.c

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14 KiB
C

// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "test_utils.h"
#include "soc/gpio_pins.h"
#include "soc/gpio_sig_map.h"
#include "esp_intr_alloc.h"
#include "esp_err.h"
#include "esp_attr.h"
#include "esp_rom_gpio.h"
#include "soc/usb_wrap_struct.h"
#include "hcd.h"
#include "usb_private.h"
#include "usb.h"
#include "test_hcd_common.h"
#define PORT_NUM 1
#define EVENT_QUEUE_LEN 5
#define ENUM_ADDR 1 //Device address to use for tests that enumerate the device
#define ENUM_CONFIG 1 //Device configuration number to use for tests that enumerate the device
typedef struct {
hcd_port_handle_t port_hdl;
hcd_port_event_t port_event;
} port_event_msg_t;
typedef struct {
hcd_pipe_handle_t pipe_hdl;
hcd_pipe_event_t pipe_event;
} pipe_event_msg_t;
// ---------------------------------------------------- Private --------------------------------------------------------
/**
* @brief HCD port callback. Registered when initializing an HCD port
*
* @param port_hdl Port handle
* @param port_event Port event that triggered the callback
* @param user_arg User argument
* @param in_isr Whether callback was called in an ISR context
* @return true ISR should yield after this callback returns
* @return false No yield required (non-ISR context calls should always return false)
*/
static bool port_callback(hcd_port_handle_t port_hdl, hcd_port_event_t port_event, void *user_arg, bool in_isr)
{
//We store the port's queue handle in the port's context variable
void *port_ctx = hcd_port_get_context(port_hdl);
QueueHandle_t port_evt_queue = (QueueHandle_t)port_ctx;
TEST_ASSERT(in_isr); //Current HCD implementation should never call a port callback in a task context
port_event_msg_t msg = {
.port_hdl = port_hdl,
.port_event = port_event,
};
BaseType_t xTaskWoken = pdFALSE;
xQueueSendFromISR(port_evt_queue, &msg, &xTaskWoken);
return (xTaskWoken == pdTRUE);
}
/**
* @brief HCD pipe callback. Registered when allocating a HCD pipe
*
* @param pipe_hdl Pipe handle
* @param pipe_event Pipe event that triggered the callback
* @param user_arg User argument
* @param in_isr Whether the callback was called in an ISR context
* @return true ISR should yield after this callback returns
* @return false No yield required (non-ISR context calls should always return false)
*/
static bool pipe_callback(hcd_pipe_handle_t pipe_hdl, hcd_pipe_event_t pipe_event, void *user_arg, bool in_isr)
{
QueueHandle_t pipe_evt_queue = (QueueHandle_t)user_arg;
pipe_event_msg_t msg = {
.pipe_hdl = pipe_hdl,
.pipe_event = pipe_event,
};
if (in_isr) {
BaseType_t xTaskWoken = pdFALSE;
xQueueSendFromISR(pipe_evt_queue, &msg, &xTaskWoken);
return (xTaskWoken == pdTRUE);
} else {
xQueueSend(pipe_evt_queue, &msg, portMAX_DELAY);
return false;
}
}
// ------------------------------------------------- HCD Event Test ----------------------------------------------------
void test_hcd_expect_port_event(hcd_port_handle_t port_hdl, hcd_port_event_t expected_event)
{
//Get the port event queue from the port's context variable
QueueHandle_t port_evt_queue = (QueueHandle_t)hcd_port_get_context(port_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, port_evt_queue);
//Wait for port callback to send an event message
port_event_msg_t msg;
xQueueReceive(port_evt_queue, &msg, portMAX_DELAY);
//Check the contents of that event message
TEST_ASSERT_EQUAL(port_hdl, msg.port_hdl);
TEST_ASSERT_EQUAL(expected_event, msg.port_event);
printf("\t-> Port event\n");
}
void test_hcd_expect_pipe_event(hcd_pipe_handle_t pipe_hdl, hcd_pipe_event_t expected_event)
{
//Get the pipe's event queue from the pipe's context variable
QueueHandle_t pipe_evt_queue = (QueueHandle_t)hcd_pipe_get_context(pipe_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, pipe_evt_queue);
//Wait for pipe callback to send an event message
pipe_event_msg_t msg;
xQueueReceive(pipe_evt_queue, &msg, portMAX_DELAY);
//Check the contents of that event message
TEST_ASSERT_EQUAL(pipe_hdl, msg.pipe_hdl);
TEST_ASSERT_EQUAL(expected_event, msg.pipe_event);
}
int test_hcd_get_num_port_events(hcd_port_handle_t port_hdl)
{
//Get the port event queue from the port's context variable
QueueHandle_t port_evt_queue = (QueueHandle_t)hcd_port_get_context(port_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, port_evt_queue);
return EVENT_QUEUE_LEN - uxQueueSpacesAvailable(port_evt_queue);
}
int test_hcd_get_num_pipe_events(hcd_pipe_handle_t pipe_hdl)
{
//Get the pipe's event queue from the pipe's context variable
QueueHandle_t pipe_evt_queue = (QueueHandle_t)hcd_pipe_get_context(pipe_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, pipe_evt_queue);
return EVENT_QUEUE_LEN - uxQueueSpacesAvailable(pipe_evt_queue);
}
// ----------------------------------------------- Driver/Port Related -------------------------------------------------
void test_hcd_force_conn_state(bool connected, TickType_t delay_ticks)
{
vTaskDelay(delay_ticks);
usb_wrap_dev_t *wrap = &USB_WRAP;
if (connected) {
//Swap back to internal PHY that is connected to a device
wrap->otg_conf.phy_sel = 0;
} else {
//Set external PHY input signals to fixed voltage levels mimicking a disconnected state
esp_rom_gpio_connect_in_signal(GPIO_MATRIX_CONST_ZERO_INPUT, USB_EXTPHY_VP_IDX, false);
esp_rom_gpio_connect_in_signal(GPIO_MATRIX_CONST_ZERO_INPUT, USB_EXTPHY_VM_IDX, false);
esp_rom_gpio_connect_in_signal(GPIO_MATRIX_CONST_ONE_INPUT, USB_EXTPHY_RCV_IDX, false);
//Swap to the external PHY
wrap->otg_conf.phy_sel = 1;
}
}
hcd_port_handle_t test_hcd_setup(void)
{
//Create a queue for port callback to queue up port events
QueueHandle_t port_evt_queue = xQueueCreate(EVENT_QUEUE_LEN, sizeof(port_event_msg_t));
TEST_ASSERT_NOT_EQUAL(NULL, port_evt_queue);
//Install HCD
hcd_config_t hcd_config = {
.intr_flags = ESP_INTR_FLAG_LEVEL1,
};
TEST_ASSERT_EQUAL(ESP_OK, hcd_install(&hcd_config));
//Initialize a port
hcd_port_config_t port_config = {
.callback = port_callback,
.callback_arg = (void *)port_evt_queue,
.context = (void *)port_evt_queue,
};
hcd_port_handle_t port_hdl;
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_init(PORT_NUM, &port_config, &port_hdl));
TEST_ASSERT_NOT_EQUAL(NULL, port_hdl);
TEST_ASSERT_EQUAL(HCD_PORT_STATE_NOT_POWERED, hcd_port_get_state(port_hdl));
test_hcd_force_conn_state(false, 0); //Force disconnected state on PHY
return port_hdl;
}
void test_hcd_teardown(hcd_port_handle_t port_hdl)
{
//Get the queue handle from the port's context variable
QueueHandle_t port_evt_queue = (QueueHandle_t)hcd_port_get_context(port_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, port_evt_queue);
//Deinitialize a port
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_deinit(port_hdl));
//Uninstall the HCD
TEST_ASSERT_EQUAL(ESP_OK, hcd_uninstall());
vQueueDelete(port_evt_queue);
}
usb_speed_t test_hcd_wait_for_conn(hcd_port_handle_t port_hdl)
{
//Power ON the port
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_command(port_hdl, HCD_PORT_CMD_POWER_ON));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_DISCONNECTED, hcd_port_get_state(port_hdl));
//Wait for connection event
printf("Waiting for connection\n");
test_hcd_force_conn_state(true, pdMS_TO_TICKS(100)); //Allow for connected state on PHY
test_hcd_expect_port_event(port_hdl, HCD_PORT_EVENT_CONNECTION);
TEST_ASSERT_EQUAL(HCD_PORT_EVENT_CONNECTION, hcd_port_handle_event(port_hdl));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_DISABLED, hcd_port_get_state(port_hdl));
//Reset newly connected device
printf("Resetting\n");
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_command(port_hdl, HCD_PORT_CMD_RESET));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_ENABLED, hcd_port_get_state(port_hdl));
//Get speed of connected
usb_speed_t port_speed;
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_get_speed(port_hdl, &port_speed));
if (port_speed == USB_SPEED_FULL) {
printf("Full speed enabled\n");
} else {
printf("Low speed enabled\n");
}
return port_speed;
}
void test_hcd_wait_for_disconn(hcd_port_handle_t port_hdl, bool already_disabled)
{
if (!already_disabled) {
//Disable the device
printf("Disabling\n");
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_command(port_hdl, HCD_PORT_CMD_DISABLE));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_DISABLED, hcd_port_get_state(port_hdl));
}
//Wait for a safe disconnect
printf("Waiting for disconnection\n");
test_hcd_force_conn_state(false, pdMS_TO_TICKS(100)); //Force disconnected state on PHY
test_hcd_expect_port_event(port_hdl, HCD_PORT_EVENT_DISCONNECTION);
TEST_ASSERT_EQUAL(HCD_PORT_EVENT_DISCONNECTION, hcd_port_handle_event(port_hdl));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_DISCONNECTED, hcd_port_get_state(port_hdl));
//Power down the port
TEST_ASSERT_EQUAL(ESP_OK, hcd_port_command(port_hdl, HCD_PORT_CMD_POWER_OFF));
TEST_ASSERT_EQUAL(HCD_PORT_STATE_NOT_POWERED, hcd_port_get_state(port_hdl));
}
// ---------------------------------------------- Pipe Setup/Tear-down -------------------------------------------------
hcd_pipe_handle_t test_hcd_pipe_alloc(hcd_port_handle_t port_hdl, const usb_desc_ep_t *ep_desc, uint8_t dev_addr, usb_speed_t dev_speed)
{
//Create a queue for pipe callback to queue up pipe events
QueueHandle_t pipe_evt_queue = xQueueCreate(EVENT_QUEUE_LEN, sizeof(pipe_event_msg_t));
TEST_ASSERT_NOT_EQUAL(NULL, pipe_evt_queue);
printf("Creating pipe\n");
hcd_pipe_config_t pipe_config = {
.callback = pipe_callback,
.callback_arg = (void *)pipe_evt_queue,
.context = (void *)pipe_evt_queue,
.ep_desc = ep_desc,
.dev_addr = dev_addr,
.dev_speed = dev_speed,
};
hcd_pipe_handle_t pipe_hdl;
TEST_ASSERT_EQUAL(ESP_OK, hcd_pipe_alloc(port_hdl, &pipe_config, &pipe_hdl));
TEST_ASSERT_NOT_EQUAL(NULL, pipe_hdl);
return pipe_hdl;
}
void test_hcd_pipe_free(hcd_pipe_handle_t pipe_hdl)
{
//Get the pipe's event queue from its context variable
QueueHandle_t pipe_evt_queue = (QueueHandle_t)hcd_pipe_get_context(pipe_hdl);
TEST_ASSERT_NOT_EQUAL(NULL, pipe_evt_queue);
//Free the pipe and queue
TEST_ASSERT_EQUAL(ESP_OK, hcd_pipe_free(pipe_hdl));
vQueueDelete(pipe_evt_queue);
}
urb_t *test_hcd_alloc_urb(int num_isoc_packets, size_t data_buffer_size)
{
//Allocate a URB and data buffer
urb_t *urb = heap_caps_calloc(1, sizeof(urb_t) + (num_isoc_packets * sizeof(usb_isoc_packet_desc_t)), MALLOC_CAP_DEFAULT);
uint8_t *data_buffer = heap_caps_malloc(data_buffer_size, MALLOC_CAP_DMA);
TEST_ASSERT_NOT_EQUAL(NULL, urb);
TEST_ASSERT_NOT_EQUAL(NULL, data_buffer);
//Initialize URB and underlying transfer structure. Need to cast to dummy due to const fields
usb_transfer_dummy_t *transfer_dummy = (usb_transfer_dummy_t *)&urb->transfer;
transfer_dummy->data_buffer = data_buffer;
transfer_dummy->num_isoc_packets = num_isoc_packets;
return urb;
}
void test_hcd_free_urb(urb_t *urb)
{
//Free data buffer of the transfer
heap_caps_free(urb->transfer.data_buffer);
//Free the URB
heap_caps_free(urb);
}
uint8_t test_hcd_enum_device(hcd_pipe_handle_t default_pipe)
{
//We need to create a URB for the enumeration control transfers
urb_t *urb = test_hcd_alloc_urb(0, sizeof(usb_ctrl_req_t) + 256);
usb_ctrl_req_t *ctrl_req = (usb_ctrl_req_t *)urb->transfer.data_buffer;
//Get the device descriptor (note that device might only return 8 bytes)
USB_CTRL_REQ_INIT_GET_DEVICE_DESC(ctrl_req);
urb->transfer.num_bytes = sizeof(usb_desc_device_t);
TEST_ASSERT_EQUAL(ESP_OK, hcd_urb_enqueue(default_pipe, urb));
test_hcd_expect_pipe_event(default_pipe, HCD_PIPE_EVENT_URB_DONE);
TEST_ASSERT_EQUAL(urb, hcd_urb_dequeue(default_pipe));
TEST_ASSERT_EQUAL(USB_TRANSFER_STATUS_COMPLETED, urb->transfer.status);
//Update the MPS of the default pipe
usb_desc_device_t *device_desc = (usb_desc_device_t *)(urb->transfer.data_buffer + sizeof(usb_ctrl_req_t));
TEST_ASSERT_EQUAL(ESP_OK, hcd_pipe_update_mps(default_pipe, device_desc->bMaxPacketSize0));
//Send a set address request
USB_CTRL_REQ_INIT_SET_ADDR(ctrl_req, ENUM_ADDR); //We only support one device for now so use address 1
urb->transfer.num_bytes = 0;
TEST_ASSERT_EQUAL(ESP_OK, hcd_urb_enqueue(default_pipe, urb));
test_hcd_expect_pipe_event(default_pipe, HCD_PIPE_EVENT_URB_DONE);
TEST_ASSERT_EQUAL(urb, hcd_urb_dequeue(default_pipe));
TEST_ASSERT_EQUAL(USB_TRANSFER_STATUS_COMPLETED, urb->transfer.status);
//Update address of default pipe
TEST_ASSERT_EQUAL(ESP_OK, hcd_pipe_update_dev_addr(default_pipe, ENUM_ADDR));
//Send a set configuration request
USB_CTRL_REQ_INIT_SET_CONFIG(ctrl_req, ENUM_CONFIG);
urb->transfer.num_bytes = 0;
TEST_ASSERT_EQUAL(ESP_OK, hcd_urb_enqueue(default_pipe, urb));
test_hcd_expect_pipe_event(default_pipe, HCD_PIPE_EVENT_URB_DONE);
TEST_ASSERT_EQUAL(urb, hcd_urb_dequeue(default_pipe));
TEST_ASSERT_EQUAL(USB_TRANSFER_STATUS_COMPLETED, urb->transfer.status);
//Free URB
test_hcd_free_urb(urb);
return ENUM_ADDR;
}