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esp-idf/components/usb/test/common/test_usb_mock_classes.h

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// 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.
/*
This header contains bare-bone mock implementations of some device classes in order to test various layers of the USB
Host stack.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include "usb.h"
#ifdef __cplusplus
extern "C" {
#endif
// ---------------------------------------------------- MSC SCSI -------------------------------------------------------
/*
Note: The mock MSC SCSI tests requires that USB flash drive be connected. The flash drive should...
- Be implement the Mass Storage class supporting BULK only transfers using SCSI commands
- It's configuration 1 should have the following endpoints
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x125f
idProduct 0xc08a
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0020
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 480mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
If you're using a flash driver with different endpoints, modify the endpoint descriptors below.
*/
static const usb_desc_ep_t mock_msc_scsi_bulk_out_ep_desc = {
.bLength = sizeof(usb_desc_ep_t),
.bDescriptorType = USB_B_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = 0x01, //EP 1 OUT
.bmAttributes = USB_BM_ATTRIBUTES_XFER_BULK,
.wMaxPacketSize = 64, //MPS of 64 bytes
.bInterval = 1,
};
static const usb_desc_ep_t mock_msc_scsi_bulk_in_ep_desc = {
.bLength = sizeof(usb_desc_ep_t),
.bDescriptorType = USB_B_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = 0x82, //EP 2 IN
.bmAttributes = USB_BM_ATTRIBUTES_XFER_BULK,
.wMaxPacketSize = 64, //MPS of 64 bytes
.bInterval = 1,
};
#define MOCK_MSC_SCSI_DEV_ID_VENDOR 0x125F
#define MOCK_MSC_SCSI_DEV_ID_PRODUCT 0xc08A
#define MOCK_MSC_SCSI_DEV_DFLT_EP_MPS 64
#define MOCK_MSC_SCSI_SECTOR_SIZE 512
#define MOCK_MSC_SCSI_LUN 0
#define MOCK_MSC_SCSI_INTF_NUMBER 0
#define MOCK_MSC_SCSI_INTF_ALT_SETTING 0
#define MOCK_MSC_SCSI_BULK_OUT_EP_ADDR 0x01
#define MOCK_MSC_SCSI_BULK_IN_EP_ADDR 0x82
#define MOCK_MSC_SCSI_BULK_EP_MPS 64
#define MOCK_MSC_SCSI_REQ_INIT_RESET(ctrl_req_ptr, intf_num) ({ \
(ctrl_req_ptr)->bRequestType = USB_B_REQUEST_TYPE_DIR_OUT | USB_B_REQUEST_TYPE_TYPE_CLASS | USB_B_REQUEST_TYPE_RECIP_INTERFACE; \
(ctrl_req_ptr)->bRequest = 0xFF; \
(ctrl_req_ptr)->wValue = 0; \
(ctrl_req_ptr)->wIndex = (intf_num); \
(ctrl_req_ptr)->wLength = 0; \
})
typedef struct __attribute__((packed)) {
uint8_t opcode; //0x28 = read(10), 0x2A=write(10)
uint8_t flags;
uint8_t lba_3;
uint8_t lba_2;
uint8_t lba_1;
uint8_t lba_0;
uint8_t group;
uint8_t len_1;
uint8_t len_0;
uint8_t control;
} mock_scsi_cmd10_t;
typedef struct __attribute__((packed)) {
uint32_t dCBWSignature;
uint32_t dCBWTag;
uint32_t dCBWDataTransferLength;
uint8_t bmCBWFlags;
uint8_t bCBWLUN;
uint8_t bCBWCBLength;
mock_scsi_cmd10_t CBWCB;
uint8_t padding[6];
} mock_msc_bulk_cbw_t;
// USB Bulk Transfer Command Status Wrapper data
typedef struct __attribute__((packed)) {
uint32_t dCSWSignature;
uint32_t dCSWTag;
uint32_t dCSWDataResidue;
uint8_t bCSWStatus;
} mock_msc_bulk_csw_t;
/**
* @brief Initialize a MSC Command Block Wrapper (CBW) as an SCSI command
*
* @param cbw CBW structure
* @param is_read Is a read command
* @param offset Block offset
* @param num_sectors Number of sectors to read
* @param tag Tag (this is simply echoed back
*/
void mock_msc_scsi_init_cbw(mock_msc_bulk_cbw_t *cbw, bool is_read, int offset, int num_sectors, uint32_t tag);
/**
* @brief Check that returned Command Status Wrapper (CSW) is valid
*
* @param csw CSW structure
* @param tag_expect Expected tag
* @return true CSW is valid
* @return false CSW is not valid
*/
bool mock_msc_scsi_check_csw(mock_msc_bulk_csw_t *csw, uint32_t tag_expect);
// ---------------------------------------------------- HID Mouse ------------------------------------------------------
/*
Note: The mock HID mouse tests require that USB low speed mouse be connected. The mouse should...
- Be implement the HID with standard report format used by mice
- It's configuration 1 should have the following endpoint
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 10
If you're using another mice with different endpoints, modify the endpoint descriptor below
*/
static const usb_desc_ep_t mock_hid_mouse_in_ep_desc = {
.bLength = sizeof(usb_desc_ep_t),
.bDescriptorType = USB_B_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = 0x81, //EP 1 IN
.bmAttributes = USB_BM_ATTRIBUTES_XFER_INT,
.wMaxPacketSize = 4, //MPS of 4 bytes
.bInterval = 10, //Interval of 10ms
};
typedef union {
struct {
uint32_t left_button: 1;
uint32_t right_button: 1;
uint32_t middle_button: 1;
uint32_t reserved5: 5;
uint8_t x_movement;
uint8_t y_movement;
} __attribute__((packed));
uint8_t val[3];
} mock_hid_mouse_report_t;
_Static_assert(sizeof(mock_hid_mouse_report_t) == 3, "Size of HID mouse report incorrect");
void mock_hid_process_report(mock_hid_mouse_report_t *report, int iter);
// ---------------------------------------------------- Mock ISOC ------------------------------------------------------
/*
Note: ISOC test rely on communicating with a non existent endpoint using ISOC OUT transfers. Since no ACK is given for
ISOC, transferring to a non-existent endpoint should work. The non-existent endpoint descriptor is described below:
*/
#define MOCK_ISOC_EP_NUM 2
#define MOCK_ISOC_EP_MPS 512
static const usb_desc_ep_t mock_isoc_out_ep_desc = {
.bLength = sizeof(usb_desc_ep_t),
.bDescriptorType = USB_B_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = MOCK_ISOC_EP_NUM,
.bmAttributes = USB_BM_ATTRIBUTES_XFER_ISOC,
.wMaxPacketSize = MOCK_ISOC_EP_MPS, //MPS of 512 bytes
.bInterval = 1, //Isoc interval is (2 ^ (bInterval - 1)) which means an interval of 1ms
};
#ifdef __cplusplus
}
#endif
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