mbed official / USBHost

USBHost library. NOTE: This library is only officially supported on the LPC1768 platform. For more information, please see the handbook page.

Dependencies:   FATFileSystem mbed-rtos

Dependents:   BTstack WallbotWii SD to Flash Data Transfer USBHost-MSD_HelloWorld ... more

Legacy Warning

This is an mbed 2 library. To learn more about mbed OS 5, visit the docs.

Pull requests against this repository are no longer supported. Please raise against mbed OS 5 as documented above.

USBHost/USBHALHost.h@40:7c3b59bb364e, 2017-08-17 (annotated)

Committer:
Anna Bridge
Date:
Thu Aug 17 18:12:22 2017 +0100
Revision:
40:7c3b59bb364e
Parent:
37:f1e388e7b752 
DISCO_L475VG_IOT01A: Add support of USBHost

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 8:93da8ea2708b 1 /* mbed USBHost Library
samux 8:93da8ea2708b 2 * Copyright (c) 2006-2013 ARM Limited
samux 8:93da8ea2708b 3 *
samux 8:93da8ea2708b 4 * Licensed under the Apache License, Version 2.0 (the "License");
samux 8:93da8ea2708b 5 * you may not use this file except in compliance with the License.
samux 8:93da8ea2708b 6 * You may obtain a copy of the License at
samux 8:93da8ea2708b 7 *
samux 8:93da8ea2708b 8 * http://www.apache.org/licenses/LICENSE-2.0
samux 8:93da8ea2708b 9 *
samux 8:93da8ea2708b 10 * Unless required by applicable law or agreed to in writing, software
samux 8:93da8ea2708b 11 * distributed under the License is distributed on an "AS IS" BASIS,
samux 8:93da8ea2708b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
samux 8:93da8ea2708b 13 * See the License for the specific language governing permissions and
samux 8:93da8ea2708b 14 * limitations under the License.
samux 8:93da8ea2708b 15 */
mbed_official 0:a554658735bf 16
mbed_official 0:a554658735bf 17 #ifndef USBHALHOST_H
mbed_official 0:a554658735bf 18 #define USBHALHOST_H
mbed_official 0:a554658735bf 19
mbed_official 0:a554658735bf 20 #include "USBHostTypes.h"
mbed_official 0:a554658735bf 21 #include "USBHostConf.h"
mbed_official 0:a554658735bf 22
mbed_official 0:a554658735bf 23 class USBHostHub;
mbed_official 0:a554658735bf 24
samux 8:93da8ea2708b 25 /**
samux 8:93da8ea2708b 26 * USBHALHost class
samux 8:93da8ea2708b 27 */
mbed_official 0:a554658735bf 28 class USBHALHost {
samux 8:93da8ea2708b 29 protected:
mbed_official 0:a554658735bf 30
mbed_official 0:a554658735bf 31 /**
mbed_official 0:a554658735bf 32 * Constructor
mbed_official 0:a554658735bf 33 * init variables and memory where will be stored HCCA, ED and TD
mbed_official 0:a554658735bf 34 */
mbed_official 0:a554658735bf 35 USBHALHost();
mbed_official 24:868cbfe611a7 36
mbed_official 0:a554658735bf 37 /**
mbed_official 24:868cbfe611a7 38 * Initialize host controller. Enable USB interrupts. This part is not in the constructor because,
mbed_official 0:a554658735bf 39 * this function calls a virtual method if a device is already connected
mbed_official 0:a554658735bf 40 */
mbed_official 0:a554658735bf 41 void init();
mbed_official 24:868cbfe611a7 42
mbed_official 0:a554658735bf 43 /**
mbed_official 0:a554658735bf 44 * reset the root hub
mbed_official 0:a554658735bf 45 */
mbed_official 0:a554658735bf 46 void resetRootHub();
mbed_official 24:868cbfe611a7 47
mbed_official 0:a554658735bf 48 /**
mbed_official 0:a554658735bf 49 * return the value contained in the control HEAD ED register
mbed_official 0:a554658735bf 50 *
mbed_official 0:a554658735bf 51 * @returns address of the control Head ED
mbed_official 0:a554658735bf 52 */
mbed_official 0:a554658735bf 53 uint32_t controlHeadED();
mbed_official 24:868cbfe611a7 54
mbed_official 0:a554658735bf 55 /**
mbed_official 0:a554658735bf 56 * return the value contained in the bulk HEAD ED register
mbed_official 0:a554658735bf 57 *
mbed_official 0:a554658735bf 58 * @returns address of the bulk head ED
mbed_official 0:a554658735bf 59 */
mbed_official 0:a554658735bf 60 uint32_t bulkHeadED();
mbed_official 24:868cbfe611a7 61
mbed_official 0:a554658735bf 62 /**
mbed_official 0:a554658735bf 63 * return the value of the head interrupt ED contained in the HCCA
mbed_official 0:a554658735bf 64 *
mbed_official 0:a554658735bf 65 * @returns address of the head interrupt ED contained in the HCCA
mbed_official 0:a554658735bf 66 */
mbed_official 0:a554658735bf 67 uint32_t interruptHeadED();
mbed_official 24:868cbfe611a7 68
mbed_official 0:a554658735bf 69 /**
mbed_official 0:a554658735bf 70 * Update the head ED for control transfers
mbed_official 0:a554658735bf 71 */
mbed_official 0:a554658735bf 72 void updateControlHeadED(uint32_t addr);
mbed_official 24:868cbfe611a7 73
mbed_official 0:a554658735bf 74 /**
mbed_official 0:a554658735bf 75 * Update the head ED for bulk transfers
mbed_official 0:a554658735bf 76 */
mbed_official 0:a554658735bf 77 void updateBulkHeadED(uint32_t addr);
mbed_official 24:868cbfe611a7 78
mbed_official 0:a554658735bf 79 /**
mbed_official 0:a554658735bf 80 * Update the head ED for interrupt transfers
mbed_official 0:a554658735bf 81 */
mbed_official 0:a554658735bf 82 void updateInterruptHeadED(uint32_t addr);
mbed_official 24:868cbfe611a7 83
samux 8:93da8ea2708b 84 /**
mbed_official 0:a554658735bf 85 * Enable List for the specified endpoint type
samux 8:93da8ea2708b 86 *
samux 8:93da8ea2708b 87 * @param type enable the list of ENDPOINT_TYPE type
mbed_official 0:a554658735bf 88 */
mbed_official 0:a554658735bf 89 void enableList(ENDPOINT_TYPE type);
mbed_official 24:868cbfe611a7 90
mbed_official 0:a554658735bf 91 /**
mbed_official 0:a554658735bf 92 * Disable List for the specified endpoint type
samux 8:93da8ea2708b 93 *
samux 8:93da8ea2708b 94 * @param type disable the list of ENDPOINT_TYPE type
mbed_official 0:a554658735bf 95 */
mbed_official 0:a554658735bf 96 bool disableList(ENDPOINT_TYPE type);
mbed_official 0:a554658735bf 97
mbed_official 0:a554658735bf 98 /**
mbed_official 0:a554658735bf 99 * Virtual method called when a device has been connected
mbed_official 0:a554658735bf 100 *
mbed_official 0:a554658735bf 101 * @param hub hub number of the device
mbed_official 0:a554658735bf 102 * @param port port number of the device
mbed_official 0:a554658735bf 103 * @param lowSpeed 1 if low speed, 0 otherwise
mbed_official 0:a554658735bf 104 * @param hub_parent reference to the hub where the device is connected (NULL if the hub parent is the root hub)
mbed_official 0:a554658735bf 105 */
samux 8:93da8ea2708b 106 virtual void deviceConnected(int hub, int port, bool lowSpeed, USBHostHub * hub_parent = NULL) = 0;
mbed_official 24:868cbfe611a7 107
mbed_official 0:a554658735bf 108 /**
mbed_official 0:a554658735bf 109 * Virtual method called when a device has been disconnected
mbed_official 0:a554658735bf 110 *
mbed_official 0:a554658735bf 111 * @param hub hub number of the device
mbed_official 0:a554658735bf 112 * @param port port number of the device
mbed_official 0:a554658735bf 113 * @param hub_parent reference to the hub where the device is connected (NULL if the hub parent is the root hub)
mbed_official 0:a554658735bf 114 * @param addr list of the TDs which have been completed to dequeue freed TDs
mbed_official 0:a554658735bf 115 */
samux 8:93da8ea2708b 116 virtual void deviceDisconnected(int hub, int port, USBHostHub * hub_parent, volatile uint32_t addr) = 0;
mbed_official 24:868cbfe611a7 117
mbed_official 0:a554658735bf 118 /**
mbed_official 0:a554658735bf 119 * Virtual method called when a transfer has been completed
mbed_official 0:a554658735bf 120 *
mbed_official 0:a554658735bf 121 * @param addr list of the TDs which have been completed
mbed_official 0:a554658735bf 122 */
samux 8:93da8ea2708b 123 virtual void transferCompleted(volatile uint32_t addr) = 0;
mbed_official 24:868cbfe611a7 124
mbed_official 0:a554658735bf 125 /**
mbed_official 0:a554658735bf 126 * Find a memory section for a new ED
mbed_official 0:a554658735bf 127 *
samux 8:93da8ea2708b 128 * @returns the address of the new ED
mbed_official 0:a554658735bf 129 */
mbed_official 0:a554658735bf 130 volatile uint8_t * getED();
mbed_official 24:868cbfe611a7 131
mbed_official 0:a554658735bf 132 /**
mbed_official 0:a554658735bf 133 * Find a memory section for a new TD
mbed_official 0:a554658735bf 134 *
samux 8:93da8ea2708b 135 * @returns the address of the new TD
mbed_official 0:a554658735bf 136 */
mbed_official 0:a554658735bf 137 volatile uint8_t * getTD();
mbed_official 24:868cbfe611a7 138
mbed_official 0:a554658735bf 139 /**
mbed_official 0:a554658735bf 140 * Release a previous memory section reserved for an ED
mbed_official 0:a554658735bf 141 *
mbed_official 0:a554658735bf 142 * @param ed address of the ED
mbed_official 0:a554658735bf 143 */
mbed_official 0:a554658735bf 144 void freeED(volatile uint8_t * ed);
mbed_official 24:868cbfe611a7 145
mbed_official 0:a554658735bf 146 /**
mbed_official 0:a554658735bf 147 * Release a previous memory section reserved for an TD
mbed_official 0:a554658735bf 148 *
samux 2:5e8fdc541b98 149 * @param td address of the TD
mbed_official 0:a554658735bf 150 */
mbed_official 0:a554658735bf 151 void freeTD(volatile uint8_t * td);
mbed_official 0:a554658735bf 152
mbed_official 0:a554658735bf 153 private:
mbed_official 0:a554658735bf 154 static void _usbisr(void);
mbed_official 0:a554658735bf 155 void UsbIrqhandler();
mbed_official 0:a554658735bf 156
mbed_official 0:a554658735bf 157 void memInit();
mbed_official 0:a554658735bf 158
mbed_official 0:a554658735bf 159 HCCA volatile * usb_hcca; //256 bytes aligned
mbed_official 0:a554658735bf 160 uint8_t volatile * usb_edBuf; //4 bytes aligned
mbed_official 0:a554658735bf 161 uint8_t volatile * usb_tdBuf; //4 bytes aligned
mbed_official 0:a554658735bf 162
mbed_official 0:a554658735bf 163 static USBHALHost * instHost;
mbed_official 24:868cbfe611a7 164
mbed_official 0:a554658735bf 165 bool volatile edBufAlloc[MAX_ENDPOINT];
mbed_official 0:a554658735bf 166 bool volatile tdBufAlloc[MAX_TD];
Kojto 37:f1e388e7b752 167 #ifdef USBHOST_OTHER
Kojto 37:f1e388e7b752 168 int control_disable;
Kojto 37:f1e388e7b752 169 #endif
Kojto 37:f1e388e7b752 170
mbed_official 0:a554658735bf 171 };
mbed_official 0:a554658735bf 172
mbed_official 0:a554658735bf 173 #endif