mirror of https://github.com/ARMmbed/mbed-os.git
Configured sdk for enabling USB. Preliminary implementation of USB for nRF52840
George Beckstein
aglass0fmilk
parent
19e762298f
commit
bd2605cce9
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@ -48,6 +48,11 @@
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// <h> nRF_BLE
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// SYSTICK_ENABLED
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#ifndef SYSTICK_ENABLED
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#define SYSTICK_ENABLED 1
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#endif
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//==========================================================
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// <q> BLE_ADVERTISING_ENABLED - ble_advertising - Advertising module
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@ -4542,7 +4547,7 @@
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// <e> POWER_ENABLED - nrf_drv_power - POWER peripheral driver - legacy layer
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//==========================================================
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#ifndef POWER_ENABLED
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#define POWER_ENABLED 0
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#define POWER_ENABLED 1
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#endif
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// <o> POWER_CONFIG_IRQ_PRIORITY - Interrupt priority
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@ -5624,7 +5629,7 @@
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// <e> USBD_ENABLED - nrf_drv_usbd - USB driver
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//==========================================================
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#ifndef USBD_ENABLED
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#define USBD_ENABLED 0
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#define USBD_ENABLED 1
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#endif
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// <o> USBD_CONFIG_IRQ_PRIORITY - Interrupt priority
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@ -7235,7 +7235,8 @@
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"SYSTICK_CLK_OFF_DURING_SLEEP",
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"TRNG",
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"USTICKER",
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"QSPI"
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"QSPI",
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"USBDEVICE"
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],
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"extra_labels": [
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"NORDIC",
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@ -0,0 +1,102 @@
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/* mbed Microcontroller Library
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* Copyright (c) 2018-2018 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef USBPHYHW_H
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#define USBPHYHW_H
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#include "mbed.h"
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#include "USBPhy.h"
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extern "C" {
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#include "nrf_drv_usbd.h"
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#include "nrf_drv_power.h"
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}
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class USBPhyHw : public USBPhy {
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public:
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USBPhyHw();
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virtual ~USBPhyHw();
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virtual void init(USBPhyEvents *events);
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virtual void deinit();
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virtual bool powered();
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virtual void connect();
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virtual void disconnect();
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virtual void configure();
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virtual void unconfigure();
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virtual void sof_enable();
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virtual void sof_disable();
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virtual void set_address(uint8_t address);
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virtual void remote_wakeup();
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virtual const usb_ep_table_t* endpoint_table();
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virtual uint32_t ep0_set_max_packet(uint32_t max_packet);
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virtual void ep0_setup_read_result(uint8_t *buffer, uint32_t size);
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virtual void ep0_read(uint8_t *data, uint32_t size);
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virtual uint32_t ep0_read_result();
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virtual void ep0_write(uint8_t *buffer, uint32_t size);
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virtual void ep0_stall();
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virtual bool endpoint_add(usb_ep_t endpoint, uint32_t max_packet, usb_ep_type_t type);
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virtual void endpoint_remove(usb_ep_t endpoint);
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virtual void endpoint_stall(usb_ep_t endpoint);
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virtual void endpoint_unstall(usb_ep_t endpoint);
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virtual bool endpoint_read(usb_ep_t endpoint, uint8_t *data, uint32_t size);
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virtual uint32_t endpoint_read_result(usb_ep_t endpoint);
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virtual bool endpoint_write(usb_ep_t endpoint, uint8_t *data, uint32_t size);
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virtual void endpoint_abort(usb_ep_t endpoint);
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virtual void process();
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static void _usb_event_handler(nrf_drv_usbd_evt_t const * const p_event);
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static void _usb_power_event_handler(nrf_drv_power_usb_evt_t event);
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private:
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USBPhyEvents *events;
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bool sof_enabled;
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bool connect_enabled;
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typedef enum usb_hw_event_type_t {
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USB_HW_EVENT_NONE = 0,
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USB_HW_EVENT_USBD = 1,
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USB_HW_EVENT_POWER = 2
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} usb_hw_event_type_t;
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// Event type to process
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usb_hw_event_type_t usb_event_type;
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// USB event buffer
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nrf_drv_usbd_evt_t usb_event;
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// USB power event buffer
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nrf_drv_power_usb_evt_t usb_power_event;
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// Buffer to hold setup packet
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nrf_drv_usbd_setup_t setup_buf;
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// Nordic transfer structures for each in/out endpoint
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nrf_drv_usbd_transfer_t transfer_buf[18];
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// Returns the appropraite transfer structure buffer for the given endpoint
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nrf_drv_usbd_transfer_t* get_transfer_buffer(usb_ep_t endpoint);
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// Returns the corresponding enumeration given an mbed endpoint number
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static nrf_drv_usbd_ep_t get_nordic_endpoint(usb_ep_t endpoint);
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};
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#endif
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@ -0,0 +1,367 @@
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/* mbed Microcontroller Library
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* Copyright (c) 2018-2018 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "USBPhyHw.h"
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#define MAX_PACKET_SIZE_SETUP NRF_DRV_USBD_EPSIZE
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#define MAX_PACKET_NON_ISO NRF_DRV_USBD_EPSIZE
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#define MAX_PACKET_ISO NRF_DRV_USBD_ISOSIZE
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#define ENDPOINT_NON_ISO (USB_EP_ATTR_ALLOW_BULK | USB_EP_ATTR_ALLOW_INT)
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#define IS_IN_EP(ep) (ep & 0x80) // Checks if the given endpoint is an IN endpoint (MSB set)
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#define IS_OUT_EP(ep) (ep & ~0x80) // Checks if the given endpoint is an OUT endpoint (MSB clear)
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static USBPhyHw *instance;
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static void usbd_event_handler(nrf_drv_usbd_evt_t const * const p_event);
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static void power_usb_event_handler(nrf_drv_power_usb_evt_t event);
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USBPhy *get_usb_phy() {
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static USBPhyHw usbphy;
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return &usbphy;
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}
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USBPhyHw::USBPhyHw() :
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events(NULL), sof_enabled(false),
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connect_enabled(false),
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usb_event_type(USB_HW_EVENT_NONE),
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usb_power_event(NRF_DRV_POWER_USB_EVT_REMOVED) {
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}
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USBPhyHw::~USBPhyHw() {
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}
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void USBPhyHw::init(USBPhyEvents *events) {
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// Disable IRQ
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//NVIC_DisableIRQ(USBD_IRQn);
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this->events = events;
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ret_code_t ret;
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// Initialize power module to track USB Power events
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ret = nrf_drv_power_init(NULL);
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APP_ERROR_CHECK(ret);
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// Register callback for USB Power events
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static const nrf_drv_power_usbevt_config_t config = { .handler =
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power_usb_event_handler };
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ret = nrf_drv_power_usbevt_init(&config);
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APP_ERROR_CHECK(ret);
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// Initialize USB Device driver
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ret = nrf_drv_usbd_init(usbd_event_handler);
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APP_ERROR_CHECK(ret);
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instance = this;
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// Enable IRQ
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//NVIC_SetVector(USBD_IRQn, (uint32_t)&_usbisr);
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//NVIC_EnableIRQ(USBD_IRQn);
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}
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void USBPhyHw::deinit() {
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// Disconnect and disable interrupt
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disconnect();
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// Disable the USB Device driver
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ret_code_t ret = nrf_drv_usbd_uninit();
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APP_ERROR_CHECK(ret);
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//NVIC_DisableIRQ(USBD_IRQn);
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}
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bool USBPhyHw::powered() {
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if (nrf_drv_power_usbstatus_get() == NRF_DRV_POWER_USB_STATE_CONNECTED
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|| nrf_drv_power_usbstatus_get() == NRF_DRV_POWER_USB_STATE_READY)
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return true;
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else
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return false;
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}
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void USBPhyHw::connect() {
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connect_enabled = true;
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//nrf_drv_usbd_start(true);
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}
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void USBPhyHw::disconnect() {
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connect_enabled = false;
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//nrf_drv_usbd_stop();
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}
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void USBPhyHw::configure() {
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// Not needed
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}
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void USBPhyHw::unconfigure() {
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// Not needed
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}
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void USBPhyHw::sof_enable() {
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// TODO - Enable SOF interrupt
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// Can this safely be done if
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// nrf_drv_usbd_start is called with SoF enabled?
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sof_enabled = true;
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}
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void USBPhyHw::sof_disable() {
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// TODO - Disable SOF interrupt
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// Can this safely be done if
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// nrf_drv_usbd_start is called with SoF enabled?
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sof_enabled = false;
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}
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void USBPhyHw::set_address(uint8_t address) {
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// nothing to do, handled by hardware; but don't STALL
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}
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void USBPhyHw::remote_wakeup() {
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// Not supported(?)
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}
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const usb_ep_table_t *USBPhyHw::endpoint_table() {
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static const usb_ep_table_t template_table =
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{
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1536, // 64 bytes per bulk/int endpoint pair (8), 1023 bytes for iso endpoint pair (1)
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{
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{ USB_EP_ATTR_ALLOW_CTRL | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ ENDPOINT_NON_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ USB_EP_ATTR_ALLOW_ISO | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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{ 0 | USB_EP_ATTR_DIR_IN_AND_OUT, 0, 0 },
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}
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};
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return &template_table;
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}
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uint32_t USBPhyHw::ep0_set_max_packet(uint32_t max_packet) {
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if (max_packet > MAX_PACKET_SIZE_SETUP)
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max_packet = MAX_PACKET_SIZE_SETUP;
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nrf_drv_usbd_ep_max_packet_size_set(NRF_DRV_USBD_EPOUT0, max_packet);
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nrf_drv_usbd_ep_max_packet_size_set(NRF_DRV_USBD_EPIN0, max_packet);
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return max_packet;
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}
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// read setup packet
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void USBPhyHw::ep0_setup_read_result(uint8_t *buffer, uint32_t size) {
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if (size > sizeof(this->setup_buf)) {
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size = sizeof(this->setup_buf);
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}
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memcpy(buffer, &this->setup_buf, size);
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}
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void USBPhyHw::ep0_read(uint8_t *data, uint32_t size) {
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nrf_drv_usbd_transfer_t* transfer = get_transfer_buffer((usb_ep_t)(NRF_DRV_USBD_EPOUT0));
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memset(transfer, 0, sizeof(nrf_drv_usbd_transfer_t));
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transfer->p_data.rx = data;
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transfer->size = size;
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nrf_drv_usbd_ep_transfer(NRF_DRV_USBD_EPOUT0, transfer);
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}
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uint32_t USBPhyHw::ep0_read_result() {
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return nrf_drv_usbd_epout_size_get(NRF_DRV_USBD_EPOUT0);
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}
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void USBPhyHw::ep0_write(uint8_t *buffer, uint32_t size) {
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nrf_drv_usbd_transfer_t* transfer = get_transfer_buffer((usb_ep_t)(NRF_DRV_USBD_EPIN0));
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memset(transfer, 0, sizeof(nrf_drv_usbd_transfer_t));
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transfer->p_data.tx = buffer;
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transfer->size = size;
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nrf_drv_usbd_ep_transfer(NRF_DRV_USBD_EPIN0, transfer);
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}
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void USBPhyHw::ep0_stall() {
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// Note: This stall must be automatically cleared by the next setup packet
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// TODO: Check if this is actually happening
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nrf_drv_usbd_setup_stall();
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}
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bool USBPhyHw::endpoint_add(usb_ep_t endpoint, uint32_t max_packet, usb_ep_type_t type) {
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nrf_drv_usbd_ep_t nrf_ep = get_nordic_endpoint(endpoint);
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nrf_drv_usbd_ep_enable(nrf_ep);
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nrf_drv_usbd_ep_max_packet_size_set(nrf_ep, max_packet);
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return nrf_drv_usbd_ep_enable_check(nrf_ep);
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}
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void USBPhyHw::endpoint_remove(usb_ep_t endpoint) {
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nrf_drv_usbd_ep_t nrf_ep = get_nordic_endpoint(endpoint);
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nrf_drv_usbd_ep_disable(nrf_ep);
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}
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void USBPhyHw::endpoint_stall(usb_ep_t endpoint) {
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nrf_drv_usbd_ep_stall(get_nordic_endpoint(endpoint));
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}
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void USBPhyHw::endpoint_unstall(usb_ep_t endpoint) {
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nrf_drv_usbd_ep_stall_clear(get_nordic_endpoint(endpoint));
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}
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bool USBPhyHw::endpoint_read(usb_ep_t endpoint, uint8_t *data, uint32_t size) {
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nrf_drv_usbd_transfer_t* transfer = get_transfer_buffer(endpoint);
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memset(transfer, 0, sizeof(nrf_drv_usbd_transfer_t));
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transfer->p_data.rx = data;
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transfer->size = size;
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ret_code_t ret = nrf_drv_usbd_ep_transfer(get_nordic_endpoint(endpoint), transfer);
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return (ret == NRF_SUCCESS);
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}
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uint32_t USBPhyHw::endpoint_read_result(usb_ep_t endpoint) {
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return nrf_drv_usbd_epout_size_get(get_nordic_endpoint(endpoint));
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}
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bool USBPhyHw::endpoint_write(usb_ep_t endpoint, uint8_t *data, uint32_t size) {
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nrf_drv_usbd_transfer_t* transfer = get_transfer_buffer(endpoint);
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memset(transfer, 0, sizeof(nrf_drv_usbd_transfer_t));
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transfer->p_data.tx = data;
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transfer->size = size;
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ret_code_t ret = nrf_drv_usbd_ep_transfer(get_nordic_endpoint(endpoint), transfer);
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return (ret == NRF_SUCCESS);
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}
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void USBPhyHw::endpoint_abort(usb_ep_t endpoint) {
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nrf_drv_usbd_ep_abort(get_nordic_endpoint(endpoint));
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}
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void USBPhyHw::process() {
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// No valid event to process
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if (usb_event_type == USB_HW_EVENT_NONE)
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return;
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else if (usb_event_type == USB_HW_EVENT_USBD) {
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// Process regular USBD events
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switch (usb_event.type) {
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case NRF_DRV_USBD_EVT_SUSPEND:
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events->suspend(true);
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break;
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case NRF_DRV_USBD_EVT_RESUME:
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events->suspend(false);
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break;
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case NRF_DRV_USBD_EVT_WUREQ:
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break;
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case NRF_DRV_USBD_EVT_RESET:
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events->reset();
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break;
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case NRF_DRV_USBD_EVT_SOF:
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if(sof_enabled)
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events->sof(nrf_usbd_framecntr_get());
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break;
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case NRF_DRV_USBD_EVT_EPTRANSFER:
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if(usb_event.data.eptransfer.status == NRF_USBD_EP_OK)
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{
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if(IS_IN_EP(usb_event.data.eptransfer.ep))
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{
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if((usb_event.data.eptransfer.ep & 0x7F) == 0)
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events->ep0_in();
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else
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events->in((usb_ep_t) usb_event.data.eptransfer.ep);
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}
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else
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{
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if((usb_event.data.eptransfer.ep & 0x7F) == 0)
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events->ep0_out();
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else
|
||||
events->out((usb_ep_t) usb_event.data.eptransfer.ep);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case NRF_DRV_USBD_EVT_SETUP: {
|
||||
// Copy the setup packet into the internal buffer
|
||||
nrf_drv_usbd_setup_get(&setup_buf);
|
||||
events->ep0_setup();
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
|
||||
// Re-enable interrupt
|
||||
//NVIC_ClearPendingIRQ(USB_IRQn);
|
||||
//NVIC_EnableIRQ(USB_IRQn);
|
||||
}
|
||||
}
|
||||
else if (usb_event_type == USB_HW_EVENT_POWER)
|
||||
{
|
||||
// Process USB power-related events
|
||||
switch (usb_power_event) {
|
||||
case NRF_DRV_POWER_USB_EVT_DETECTED:
|
||||
events->power(true);
|
||||
break;
|
||||
case NRF_DRV_POWER_USB_EVT_REMOVED:
|
||||
events->power(false);
|
||||
break;
|
||||
case NRF_DRV_POWER_USB_EVT_READY:
|
||||
break;
|
||||
default:
|
||||
ASSERT(false)
|
||||
;
|
||||
}
|
||||
}
|
||||
|
||||
// Unflag the event type
|
||||
usb_event_type = USB_HW_EVENT_NONE;
|
||||
|
||||
}
|
||||
|
||||
void USBPhyHw::_usb_event_handler(
|
||||
nrf_drv_usbd_evt_t const * const p_event) {
|
||||
// Copy the event data into internal memory
|
||||
memcpy(&instance->usb_event, p_event, sizeof(instance->usb_event));
|
||||
// Tell the upper layers of the stack to process the event
|
||||
instance->usb_event_type = USB_HW_EVENT_USBD;
|
||||
instance->events->start_process();
|
||||
}
|
||||
|
||||
void USBPhyHw::_usb_power_event_handler(nrf_drv_power_usb_evt_t event) {
|
||||
// Copy the event data into internal memory
|
||||
instance->usb_power_event = event;
|
||||
// Tell the upper layers of the stack to process the event
|
||||
instance->usb_event_type = USB_HW_EVENT_POWER;
|
||||
instance->events->start_process();
|
||||
}
|
||||
|
||||
nrf_drv_usbd_transfer_t* USBPhyHw::get_transfer_buffer(usb_ep_t endpoint) {
|
||||
// Index is base endpoint number * 2 (output), add 1 for input endpoints
|
||||
return &transfer_buf[(((endpoint & 0x7F) << 1) + ((endpoint & 0x80) >> 7))];
|
||||
}
|
||||
|
||||
nrf_drv_usbd_ep_t USBPhyHw::get_nordic_endpoint(usb_ep_t endpoint) {
|
||||
// Clear the most-significant-bit (input endpoint flag)
|
||||
uint8_t endpoint_num = (endpoint & ~(0x80));
|
||||
// Make sure it's within the valid endpoint range
|
||||
ASSERT(((0 <= endpoint_num) && (endpoint_num <= 8)));
|
||||
return (nrf_drv_usbd_ep_t) endpoint;
|
||||
}
|
||||
|
||||
static void power_usb_event_handler(nrf_drv_power_usb_evt_t event) {
|
||||
// Pass the event on to the USBPhyHW instance
|
||||
instance->_usb_power_event_handler(event);
|
||||
}
|
||||
|
||||
static void usbd_event_handler(nrf_drv_usbd_evt_t const * const p_event) {
|
||||
// Pass the event on to the USBPhyHW instance
|
||||
instance->_usb_event_handler(p_event);
|
||||
}
|
||||
Loading…
Reference in New Issue