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

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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/TARGET_STM/TARGET_STM32L4/TARGET_STM32L476xG/TARGET_DISCO_L476VG/USBHALHost_DISCOL476VG.h@37:f1e388e7b752, 2017-07-20 (annotated)

Committer:
Kojto
Date:
Thu Jul 20 10:13:56 2017 +0100
Revision:
37:f1e388e7b752
Update libraries (ed9d1da)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 37:f1e388e7b752 1 /* Copyright (c) 2016 mbed.org, MIT License
Kojto 37:f1e388e7b752 2 *
Kojto 37:f1e388e7b752 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Kojto 37:f1e388e7b752 4 * and associated documentation files (the "Software"), to deal in the Software without
Kojto 37:f1e388e7b752 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Kojto 37:f1e388e7b752 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Kojto 37:f1e388e7b752 7 * Software is furnished to do so, subject to the following conditions:
Kojto 37:f1e388e7b752 8 *
Kojto 37:f1e388e7b752 9 * The above copyright notice and this permission notice shall be included in all copies or
Kojto 37:f1e388e7b752 10 * substantial portions of the Software.
Kojto 37:f1e388e7b752 11 *
Kojto 37:f1e388e7b752 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Kojto 37:f1e388e7b752 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Kojto 37:f1e388e7b752 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Kojto 37:f1e388e7b752 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Kojto 37:f1e388e7b752 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Kojto 37:f1e388e7b752 17 */
Kojto 37:f1e388e7b752 18 #ifndef USBHALHOST_DISCOL476VG
Kojto 37:f1e388e7b752 19 #define USBHALHOST_DISCOL476VG
Kojto 37:f1e388e7b752 20
Kojto 37:f1e388e7b752 21 #define USBHAL_IRQn OTG_FS_IRQn
Kojto 37:f1e388e7b752 22
Kojto 37:f1e388e7b752 23 #define HCCA_SIZE sizeof(HCD_HandleTypeDef)
Kojto 37:f1e388e7b752 24 #define ED_SIZE sizeof(HCED)
Kojto 37:f1e388e7b752 25 #define TD_SIZE sizeof(HCTD)
Kojto 37:f1e388e7b752 26
Kojto 37:f1e388e7b752 27 #define TOTAL_SIZE (HCCA_SIZE + (MAX_ENDPOINT*ED_SIZE) + (MAX_TD*TD_SIZE))
Kojto 37:f1e388e7b752 28 /* STM device FS have 11 channels (definition is for 60 channels) */
Kojto 37:f1e388e7b752 29 static volatile uint8_t usb_buf[TOTAL_SIZE];
Kojto 37:f1e388e7b752 30 typedef struct
Kojto 37:f1e388e7b752 31 {
Kojto 37:f1e388e7b752 32 /* store the request ongoing on each endpoit */
Kojto 37:f1e388e7b752 33 /* 1st field of structure avoid giving knowledge of all structure to
Kojto 37:f1e388e7b752 34 * endpoint */
Kojto 37:f1e388e7b752 35 volatile uint32_t addr[MAX_ENDPOINT];
Kojto 37:f1e388e7b752 36 USBHALHost *inst;
Kojto 37:f1e388e7b752 37 void (USBHALHost::*deviceConnected)(int hub, int port, bool lowSpeed, USBHostHub * hub_parent);
Kojto 37:f1e388e7b752 38 void (USBHALHost::*deviceDisconnected)(int hub, int port, USBHostHub * hub_parent, volatile uint32_t addr);
Kojto 37:f1e388e7b752 39 void (USBHALHost::*transferCompleted)(volatile uint32_t addr);
Kojto 37:f1e388e7b752 40 }USBHALHost_Private_t;
Kojto 37:f1e388e7b752 41
Kojto 37:f1e388e7b752 42 static gpio_t gpio_vbus;
Kojto 37:f1e388e7b752 43
Kojto 37:f1e388e7b752 44 #define VBUS_OFF 1
Kojto 37:f1e388e7b752 45 #define VBUS_ON 0
Kojto 37:f1e388e7b752 46 #define USB_VBUS_CONFIG \
Kojto 37:f1e388e7b752 47 do {\
Kojto 37:f1e388e7b752 48 gpio_init_out_ex(&gpio_vbus, PC_9, VBUS_OFF);\
Kojto 37:f1e388e7b752 49 }while(0);
Kojto 37:f1e388e7b752 50
Kojto 37:f1e388e7b752 51
Kojto 37:f1e388e7b752 52 void usb_vbus( uint8_t state)
Kojto 37:f1e388e7b752 53 {
Kojto 37:f1e388e7b752 54 if(state == 0)
Kojto 37:f1e388e7b752 55 {
Kojto 37:f1e388e7b752 56 gpio_write(&gpio_vbus, VBUS_OFF);
Kojto 37:f1e388e7b752 57 }
Kojto 37:f1e388e7b752 58 else
Kojto 37:f1e388e7b752 59 {
Kojto 37:f1e388e7b752 60 gpio_write(&gpio_vbus, VBUS_ON);
Kojto 37:f1e388e7b752 61 }
Kojto 37:f1e388e7b752 62 wait(0.2);
Kojto 37:f1e388e7b752 63 }
Kojto 37:f1e388e7b752 64
Kojto 37:f1e388e7b752 65
Kojto 37:f1e388e7b752 66 USBHALHost::USBHALHost() {
Kojto 37:f1e388e7b752 67 instHost = this;
Kojto 37:f1e388e7b752 68 HCD_HandleTypeDef *hhcd;
Kojto 37:f1e388e7b752 69 USBHALHost_Private_t *HALPriv = new(USBHALHost_Private_t);
Kojto 37:f1e388e7b752 70 memset(HALPriv, 0, sizeof(USBHALHost_Private_t));
Kojto 37:f1e388e7b752 71 memInit();
Kojto 37:f1e388e7b752 72 memset((void*)usb_hcca, 0, HCCA_SIZE);
Kojto 37:f1e388e7b752 73 hhcd = (HCD_HandleTypeDef *)usb_hcca;
Kojto 37:f1e388e7b752 74 hhcd->Instance = USB_OTG_FS;
Kojto 37:f1e388e7b752 75 hhcd->pData = (void*)HALPriv;
Kojto 37:f1e388e7b752 76 hhcd->Init.Host_channels = 11;
Kojto 37:f1e388e7b752 77 /* for now failed with dma */
Kojto 37:f1e388e7b752 78 hhcd->Init.dma_enable = 0;
Kojto 37:f1e388e7b752 79 hhcd->Init.speed = HCD_SPEED_FULL;
Kojto 37:f1e388e7b752 80 hhcd->Init.phy_itface = HCD_PHY_EMBEDDED;
Kojto 37:f1e388e7b752 81 hhcd->Init.use_external_vbus = 1;
Kojto 37:f1e388e7b752 82 HALPriv->inst = this;
Kojto 37:f1e388e7b752 83 HALPriv->deviceConnected = &USBHALHost::deviceConnected;
Kojto 37:f1e388e7b752 84 HALPriv->deviceDisconnected = &USBHALHost::deviceDisconnected;
Kojto 37:f1e388e7b752 85 HALPriv->transferCompleted = &USBHALHost::transferCompleted;
Kojto 37:f1e388e7b752 86 for (int i = 0; i < MAX_ENDPOINT; i++) {
Kojto 37:f1e388e7b752 87 edBufAlloc[i] = false;
Kojto 37:f1e388e7b752 88 HALPriv->addr[i]=(uint32_t)-1;
Kojto 37:f1e388e7b752 89 }
Kojto 37:f1e388e7b752 90 for (int i = 0; i < MAX_TD; i++) {
Kojto 37:f1e388e7b752 91 tdBufAlloc[i] = false;
Kojto 37:f1e388e7b752 92 }
Kojto 37:f1e388e7b752 93 __HAL_RCC_PWR_CLK_ENABLE();
Kojto 37:f1e388e7b752 94 #ifdef TARGET_STM32L4
Kojto 37:f1e388e7b752 95 HAL_PWREx_EnableVddUSB();
Kojto 37:f1e388e7b752 96 #endif
Kojto 37:f1e388e7b752 97
Kojto 37:f1e388e7b752 98 /* Configure USB HS GPIOs */
Kojto 37:f1e388e7b752 99 __HAL_RCC_GPIOA_CLK_ENABLE();
Kojto 37:f1e388e7b752 100
Kojto 37:f1e388e7b752 101 /*USB DM and DP */
Kojto 37:f1e388e7b752 102 pin_function(PA_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
Kojto 37:f1e388e7b752 103 pin_function(PA_12, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
Kojto 37:f1e388e7b752 104
Kojto 37:f1e388e7b752 105 /* Configure VBUS Pin */
Kojto 37:f1e388e7b752 106 __HAL_RCC_GPIOC_CLK_ENABLE();
Kojto 37:f1e388e7b752 107 pin_function(PC_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
Kojto 37:f1e388e7b752 108 /* Configure POWER_SWITCH IO pin */
Kojto 37:f1e388e7b752 109 USB_VBUS_CONFIG;
Kojto 37:f1e388e7b752 110 __HAL_RCC_SYSCFG_CLK_ENABLE();
Kojto 37:f1e388e7b752 111
Kojto 37:f1e388e7b752 112 /* Enable USB FS Clocks */
Kojto 37:f1e388e7b752 113 __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
Kojto 37:f1e388e7b752 114 /* Set USBFS Interrupt priority */
Kojto 37:f1e388e7b752 115 HAL_NVIC_SetPriority(USBHAL_IRQn, 5, 0);
Kojto 37:f1e388e7b752 116 NVIC_SetVector(USBHAL_IRQn, (uint32_t)&_usbisr);
Kojto 37:f1e388e7b752 117 }
Kojto 37:f1e388e7b752 118 #endif