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TestUSBMSD.h
1 /*
2  * Copyright (c) 2019, Arm Limited and affiliates.
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 #ifndef Test_USBMSD_H
18 #define Test_USBMSD_H
19 
20 #include "USBMSD.h"
21 
22 
23 #define USB_DEV_SN_LEN (32) // 32 hex digit UUID
24 #define USB_DEV_SN_DESC_SIZE (USB_DEV_SN_LEN * 2 + 2)
25 
26 /**
27  * Convert a C style ASCII to a USB string descriptor
28  *
29  * @param usb_desc output buffer for the USB string descriptor
30  * @param str ASCII string
31  * @param n size of usb_desc buffer, even number
32  * @returns number of bytes returned in usb_desc or -1 on failure
33  */
34 int ascii2usb_string_desc(uint8_t *usb_desc, const char *str, size_t n)
35 {
36  if (str == NULL || usb_desc == NULL || n < 4) {
37  return -1;
38  }
39  if (n % 2 != 0) {
40  return -1;
41  }
42  size_t s, d;
43  // set bString (@ offset 2 onwards) as a UNICODE UTF-16LE string
44  memset(usb_desc, 0, n);
45  for (s = 0, d = 2; str[s] != '\0' && d < n; s++, d += 2) {
46  usb_desc[d] = str[s];
47  }
48  // set bLength @ offset 0
49  usb_desc[0] = d;
50  // set bDescriptorType @ offset 1
51  usb_desc[1] = STRING_DESCRIPTOR;
52  return d;
53 }
54 
55 class TestUSBMSD: public USBMSD {
56 public:
57  TestUSBMSD(BlockDevice *bd, bool connect_blocking = true, uint16_t vendor_id = 0x0703, uint16_t product_id = 0x0104,
58  uint16_t product_release = 0x0001)
59  : USBMSD(bd, connect_blocking, vendor_id, product_id, product_release)
60  {
61 
62  }
63 
64  virtual ~TestUSBMSD()
65  {
66 
67  }
68 
69  uint32_t get_read_counter()
70  {
71  return read_counter;
72  }
73 
74  uint32_t get_program_counter()
75  {
76  return program_counter;
77  }
78 
79  void reset_counters()
80  {
81  read_counter = program_counter = erase_counter = 0;
82  }
83 
84  static void setup_serial_number()
85  {
86  char _key[128] = { 0 };
87  char _value[128] = { 0 };
88 
89  greentea_send_kv("get_serial_number", 0);
90  greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
91  TEST_ASSERT_EQUAL_STRING("serial_number", _key);
92  usb_dev_sn[USB_DEV_SN_LEN] = '\0';
93  memcpy(usb_dev_sn, _value, USB_DEV_SN_LEN);
94  ascii2usb_string_desc(_serial_num_descriptor, usb_dev_sn, USB_DEV_SN_DESC_SIZE);
95  }
96 
97  virtual const uint8_t *string_iserial_desc()
98  {
99  return (const uint8_t *)_serial_num_descriptor;
100  }
101 
102  static volatile uint32_t read_counter;
103  static volatile uint32_t program_counter;
104  static volatile uint32_t erase_counter;
105 
106 protected:
107  virtual int disk_read(uint8_t *data, uint64_t block, uint8_t count)
108  {
109  read_counter++;
110  return USBMSD::disk_read(data, block, count);
111  }
112 
113  virtual int disk_write(const uint8_t *data, uint64_t block, uint8_t count)
114  {
115  erase_counter++;
116  program_counter++;
117 
118  return USBMSD::disk_write(data, block, count);
119  }
120 private:
121  static uint8_t _serial_num_descriptor[USB_DEV_SN_DESC_SIZE];
122  static char usb_dev_sn[USB_DEV_SN_LEN + 1];
123 };
124 
125 uint8_t TestUSBMSD::_serial_num_descriptor[USB_DEV_SN_DESC_SIZE] = { 0 };
126 char TestUSBMSD::usb_dev_sn[USB_DEV_SN_LEN + 1] = { 0 };
127 
128 
129 volatile uint32_t TestUSBMSD::read_counter = 0;
130 volatile uint32_t TestUSBMSD::program_counter = 0;
131 volatile uint32_t TestUSBMSD::erase_counter = 0;
132 
133 #endif // Test_USBMSD_H
mbed::BlockDevice
A hardware device capable of writing and reading blocks.
Definition: BlockDevice.h:47
USBMSD
USBMSD class: generic class in order to use all kinds of blocks storage chip.
Definition: USBMSD.h:58
USBMSD::USBMSD
USBMSD(BlockDevice *bd, bool connect_blocking=true, uint16_t vendor_id=0x0703, uint16_t product_id=0x0104, uint16_t product_release=0x0001)
Constructor.
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