2018-03-02 07:41:35 +01:00
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/**************************************************************************/
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/*!
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2018-03-13 10:30:53 +01:00
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@file dcd_nrf52.c
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@author hathach
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2018-03-02 07:41:35 +01:00
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@section LICENSE
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Software License Agreement (BSD License)
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2018-03-13 10:30:53 +01:00
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Copyright (c) 2018, hathach (tinyusb.org)
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2018-03-02 07:41:35 +01:00
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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2018-03-13 10:30:53 +01:00
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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2018-03-02 07:41:35 +01:00
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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2018-03-13 10:30:53 +01:00
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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2018-03-02 07:41:35 +01:00
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************/
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2018-03-13 10:30:53 +01:00
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// TODO remove
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#include "nrf.h"
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#include "nrf_power.h"
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2018-03-13 10:59:51 +01:00
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#include "nrf_usbd.h"
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2018-03-20 13:52:21 +01:00
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#include "nrf_clock.h"
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2018-03-13 10:59:51 +01:00
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2018-03-14 09:21:47 +01:00
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#include "nrf_drv_power.h"
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#include "nrf_drv_usbd_errata.h"
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2018-03-13 10:59:51 +01:00
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#include "tusb_dcd.h"
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2018-03-02 07:41:35 +01:00
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2018-03-13 10:30:53 +01:00
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/*------------------------------------------------------------------*/
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/* MACRO TYPEDEF CONSTANT ENUM
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*------------------------------------------------------------------*/
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2018-03-16 20:17:40 +01:00
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enum
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{
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// Max allowed by USB specs
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MAX_PACKET_SIZE = 64,
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// Mask of all END event (IN & OUT) for all endpoints. ENDEPIN0-7, ENDEPOUT0-7, ENDISOIN, ENDISOOUT
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EDPT_END_ALL_MASK = 0x1FFBFC
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};
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2018-03-02 07:41:35 +01:00
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2018-03-13 10:30:53 +01:00
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/*------------------------------------------------------------------*/
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/* VARIABLE DECLARATION
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*------------------------------------------------------------------*/
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2018-03-16 20:17:40 +01:00
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typedef struct
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{
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uint8_t* buffer;
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uint16_t total_len;
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uint16_t actual_len;
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uint8_t mps; // max packet size
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} nom_xfer_t;
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/*static*/ struct
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2018-03-14 16:01:29 +01:00
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{
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struct
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{
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uint8_t* buffer;
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2018-03-16 20:17:40 +01:00
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uint16_t len;
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2018-03-14 16:01:29 +01:00
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uint8_t dir;
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}control;
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2018-03-15 07:22:28 +01:00
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2018-03-16 20:17:40 +01:00
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// Non control: 7 endpoints IN & OUT (offset 1)
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nom_xfer_t xfer[2][7];
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2018-03-15 11:09:55 +01:00
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volatile bool dma_running;
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2018-03-16 20:17:40 +01:00
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}_dcd;
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2018-03-02 07:41:35 +01:00
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2018-03-13 10:30:53 +01:00
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/*------------------------------------------------------------------*/
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2018-03-21 10:08:42 +01:00
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/* Controller Start up Sequence
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2018-03-13 10:30:53 +01:00
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*------------------------------------------------------------------*/
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2018-03-20 13:52:21 +01:00
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static bool hfclk_running(void)
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2018-03-13 10:59:51 +01:00
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{
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2018-03-20 13:52:21 +01:00
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#ifdef SOFTDEVICE_PRESENT
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if (nrf_sdh_is_enabled())
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{
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uint32_t is_running;
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(void) sd_clock_hfclk_is_running(&is_running);
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return (is_running ? true : false);
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}
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#endif
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return nrf_clock_hf_is_running(NRF_CLOCK_HFCLK_HIGH_ACCURACY);
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}
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static void hfclk_enable(void)
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{
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// already running, nothing to do
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if ( hfclk_running() ) return;
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#ifdef SOFTDEVICE_PRESENT
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if (nrf_sdh_is_enabled())
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{
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(void)sd_clock_hfclk_request();
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return;
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}
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#endif
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nrf_clock_event_clear(NRF_CLOCK_EVENT_HFCLKSTARTED);
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nrf_clock_task_trigger(NRF_CLOCK_TASK_HFCLKSTART);
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}
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static void hfclk_disable(void)
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{
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#ifdef SOFTDEVICE_PRESENT
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if (nrf_sdh_is_enabled())
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{
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(void)sd_clock_hfclk_release();
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return;
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}
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#endif // SOFTDEVICE_PRESENT
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nrf_clock_task_trigger(NRF_CLOCK_TASK_HFCLKSTOP);
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2018-03-13 10:59:51 +01:00
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}
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static void power_usb_event_handler(nrf_drv_power_usb_evt_t event)
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{
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2018-03-14 09:21:47 +01:00
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// 51.4 specs USBD start-up sequene
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2018-03-13 10:59:51 +01:00
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switch ( event )
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{
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case NRF_DRV_POWER_USB_EVT_DETECTED:
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if ( !NRF_USBD->ENABLE )
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{
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2018-03-14 09:21:47 +01:00
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/* Prepare for READY event receiving */
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nrf_usbd_eventcause_clear(NRF_USBD_EVENTCAUSE_READY_MASK);
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/* Enable the peripheral */
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nrf_usbd_enable();
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// Enable HFCLK
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2018-03-20 13:52:21 +01:00
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hfclk_enable();
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2018-03-14 09:21:47 +01:00
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/* Waiting for peripheral to enable, this should take a few us */
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while ( !(NRF_USBD_EVENTCAUSE_READY_MASK & NRF_USBD->EVENTCAUSE) ) { }
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nrf_usbd_eventcause_clear(NRF_USBD_EVENTCAUSE_READY_MASK);
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nrf_usbd_event_clear(NRF_USBD_EVENT_USBEVENT);
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2018-03-13 10:59:51 +01:00
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}
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break;
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2018-03-14 09:21:47 +01:00
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case NRF_DRV_POWER_USB_EVT_READY:
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// Wait for HFCLK
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2018-03-20 13:52:21 +01:00
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while ( !hfclk_running() ) {}
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2018-03-14 09:21:47 +01:00
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if ( nrf_drv_usbd_errata_166() )
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{
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*((volatile uint32_t *) (NRF_USBD_BASE + 0x800)) = 0x7E3;
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*((volatile uint32_t *) (NRF_USBD_BASE + 0x804)) = 0x40;
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2018-03-16 20:17:40 +01:00
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__ISB(); __DSB();
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2018-03-14 09:21:47 +01:00
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}
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nrf_usbd_isosplit_set(NRF_USBD_ISOSPLIT_Half);
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2018-03-20 12:33:06 +01:00
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// Enable interrupt. SOF is used as CDC auto flush
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2018-03-15 07:22:28 +01:00
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NRF_USBD->INTENSET = USBD_INTEN_USBRESET_Msk | USBD_INTEN_USBEVENT_Msk | USBD_INTEN_ACCESSFAULT_Msk |
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2018-03-20 12:33:06 +01:00
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USBD_INTEN_EP0SETUP_Msk | USBD_INTEN_EP0DATADONE_Msk | USBD_INTEN_ENDEPIN0_Msk | USBD_INTEN_ENDEPOUT0_Msk |
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USBD_INTEN_EPDATA_Msk | USBD_INTEN_SOF_Msk;
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2018-03-14 09:21:47 +01:00
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// if (enable_sof || nrf_drv_usbd_errata_104())
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// {
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// ints_to_enable |= NRF_USBD_INT_SOF_MASK;
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// }
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2018-03-20 13:52:21 +01:00
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// Enable interrupt, Priorities 0,1,4,5 (nRF52) are reserved for SoftDevice
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NVIC_SetPriority(USBD_IRQn, 7);
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2018-03-14 09:21:47 +01:00
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NVIC_ClearPendingIRQ(USBD_IRQn);
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NVIC_EnableIRQ(USBD_IRQn);
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// Enable pull up
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nrf_usbd_pullup_enable();
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break;
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2018-03-13 10:59:51 +01:00
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case NRF_DRV_POWER_USB_EVT_REMOVED:
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if ( NRF_USBD->ENABLE )
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{
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2018-03-14 09:21:47 +01:00
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// Abort all transfers
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// Disable pull up
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nrf_usbd_pullup_disable();
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// Disable Interrupt
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NVIC_DisableIRQ(USBD_IRQn);
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// disable all interrupt
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NRF_USBD->INTENCLR = NRF_USBD->INTEN;
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2018-03-02 07:41:35 +01:00
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2018-03-13 10:59:51 +01:00
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nrf_usbd_disable();
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2018-03-20 13:52:21 +01:00
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hfclk_disable();
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2018-03-13 10:59:51 +01:00
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}
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break;
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default: break;
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}
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}
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2018-03-15 11:09:55 +01:00
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void bus_reset(void)
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{
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for(int i=0; i<8; i++)
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{
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NRF_USBD->TASKS_STARTEPIN[i] = 0;
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NRF_USBD->TASKS_STARTEPOUT[i] = 0;
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}
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NRF_USBD->TASKS_STARTISOIN = 0;
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NRF_USBD->TASKS_STARTISOOUT = 0;
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2018-03-16 20:17:40 +01:00
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varclr(&_dcd);
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2018-03-15 11:09:55 +01:00
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}
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/*------------------------------------------------------------------*/
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/* Controller API
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*------------------------------------------------------------------*/
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2018-03-23 06:17:47 +01:00
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bool tusb_dcd_init (uint8_t rhport)
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2018-03-13 10:59:51 +01:00
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{
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// USB Power detection
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const nrf_drv_power_usbevt_config_t config =
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{
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.handler = power_usb_event_handler
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};
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2018-03-20 12:33:06 +01:00
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return ( NRF_SUCCESS == nrf_drv_power_usbevt_init(&config) );
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2018-03-02 07:41:35 +01:00
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}
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2018-03-23 06:17:47 +01:00
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void tusb_dcd_connect (uint8_t rhport)
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2018-03-14 09:21:47 +01:00
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{
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}
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2018-03-23 06:17:47 +01:00
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void tusb_dcd_disconnect (uint8_t rhport)
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2018-03-14 09:21:47 +01:00
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{
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}
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2018-03-16 20:17:40 +01:00
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2018-03-23 06:17:47 +01:00
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void tusb_dcd_set_address (uint8_t rhport, uint8_t dev_addr)
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2018-03-14 09:21:47 +01:00
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{
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2018-03-23 06:17:47 +01:00
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(void) rhport;
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2018-03-16 20:17:40 +01:00
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// Set Address is automatically update by hw controller
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2018-03-14 09:21:47 +01:00
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}
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2018-03-16 20:17:40 +01:00
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2018-03-23 06:17:47 +01:00
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void tusb_dcd_set_config (uint8_t rhport, uint8_t config_num)
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2018-03-14 09:21:47 +01:00
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{
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2018-03-23 06:17:47 +01:00
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(void) rhport;
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2018-03-16 20:17:40 +01:00
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(void) config_num;
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// Nothing to do
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2018-03-14 09:21:47 +01:00
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}
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/*------------------------------------------------------------------*/
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/* Control
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*------------------------------------------------------------------*/
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2018-03-15 11:09:55 +01:00
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static void edpt_dma_start(uint8_t epnum, uint8_t dir)
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{
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// Only one dma could be active
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2018-03-16 20:17:40 +01:00
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while ( _dcd.dma_running ) { }
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2018-03-15 11:09:55 +01:00
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2018-03-16 20:17:40 +01:00
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_dcd.dma_running = true;
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2018-03-15 11:09:55 +01:00
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if ( dir == TUSB_DIR_OUT )
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{
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NRF_USBD->TASKS_STARTEPOUT[epnum] = 1;
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} else
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{
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NRF_USBD->TASKS_STARTEPIN[epnum] = 1;
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}
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2018-03-16 20:17:40 +01:00
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__ISB(); __DSB();
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2018-03-15 11:09:55 +01:00
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}
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static void edpt_dma_end(void)
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{
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2018-03-16 20:17:40 +01:00
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_dcd.dma_running = false;
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2018-03-15 11:09:55 +01:00
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}
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2018-03-14 16:01:29 +01:00
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static void control_xact_start(void)
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2018-03-14 09:21:47 +01:00
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{
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2018-03-15 07:22:28 +01:00
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// Each transaction is up to 64 bytes
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2018-03-16 20:17:40 +01:00
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uint8_t const xact_len = min16_of(_dcd.control.len, MAX_PACKET_SIZE);
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2018-03-14 16:01:29 +01:00
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2018-03-16 20:17:40 +01:00
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if ( _dcd.control.dir == TUSB_DIR_OUT )
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2018-03-14 16:01:29 +01:00
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{
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2018-03-15 07:22:28 +01:00
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// TODO control out
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2018-03-16 20:17:40 +01:00
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NRF_USBD->EPOUT[0].PTR = (uint32_t) _dcd.control.buffer;
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2018-03-15 07:22:28 +01:00
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NRF_USBD->EPOUT[0].MAXCNT = xact_len;
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2018-03-14 16:01:29 +01:00
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2018-03-15 07:22:28 +01:00
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NRF_USBD->TASKS_EP0RCVOUT = 1;
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2018-03-16 20:17:40 +01:00
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__ISB(); __DSB();
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2018-03-14 16:01:29 +01:00
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}else
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{
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2018-03-16 20:17:40 +01:00
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NRF_USBD->EPIN[0].PTR = (uint32_t) _dcd.control.buffer;
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2018-03-14 16:01:29 +01:00
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|
NRF_USBD->EPIN[0].MAXCNT = xact_len;
|
|
|
|
|
2018-03-15 11:09:55 +01:00
|
|
|
edpt_dma_start(0, TUSB_DIR_IN);
|
2018-03-14 16:01:29 +01:00
|
|
|
}
|
2018-03-15 07:22:28 +01:00
|
|
|
|
2018-03-16 20:17:40 +01:00
|
|
|
_dcd.control.buffer += xact_len;
|
|
|
|
_dcd.control.len -= xact_len;
|
2018-03-14 16:01:29 +01:00
|
|
|
}
|
|
|
|
|
2018-03-15 11:09:55 +01:00
|
|
|
//static void control_xact_done(void)
|
|
|
|
//{
|
|
|
|
// if ( _dcd_data.control.xfer_len > 0 )
|
|
|
|
// {
|
|
|
|
// if ( _dcd_data.control.dir == TUSB_DIR_OUT )
|
|
|
|
// {
|
|
|
|
// // out control need to wait for END EPOUT event before updating Pointer
|
|
|
|
// edpt_dma_start(0, TUSB_DIR_OUT);
|
|
|
|
// }else
|
|
|
|
// {
|
|
|
|
// control_xact_start();
|
|
|
|
// }
|
|
|
|
// }else
|
|
|
|
// {
|
|
|
|
// tusb_dcd_xfer_complete(0, 0, 0, true);
|
|
|
|
// }
|
|
|
|
//}
|
2018-03-14 16:01:29 +01:00
|
|
|
|
|
|
|
|
2018-03-23 06:17:47 +01:00
|
|
|
bool tusb_dcd_control_xfer (uint8_t rhport, tusb_dir_t dir, uint8_t * buffer, uint16_t length)
|
2018-03-14 16:01:29 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-14 16:01:29 +01:00
|
|
|
|
|
|
|
if ( length )
|
|
|
|
{
|
|
|
|
// Data Phase
|
2018-03-16 20:17:40 +01:00
|
|
|
_dcd.control.len = length;
|
|
|
|
_dcd.control.buffer = buffer;
|
|
|
|
_dcd.control.dir = (uint8_t) dir;
|
2018-03-14 16:01:29 +01:00
|
|
|
|
|
|
|
control_xact_start();
|
|
|
|
}else
|
|
|
|
{
|
|
|
|
// Status Phase
|
|
|
|
NRF_USBD->TASKS_EP0STATUS = 1;
|
2018-03-16 20:17:40 +01:00
|
|
|
__ISB(); __DSB();
|
2018-03-14 16:01:29 +01:00
|
|
|
}
|
|
|
|
|
2018-03-14 09:21:47 +01:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------*/
|
|
|
|
/*
|
|
|
|
*------------------------------------------------------------------*/
|
2018-03-16 20:17:40 +01:00
|
|
|
static void normal_xact_start(uint8_t epnum, uint8_t dir)
|
|
|
|
{
|
|
|
|
nom_xfer_t* xfer = &_dcd.xfer[dir][epnum-1];
|
|
|
|
|
2018-03-20 12:33:06 +01:00
|
|
|
// Each transaction is up to Max Packet Size
|
2018-03-16 20:17:40 +01:00
|
|
|
uint8_t const xact_len = min16_of(xfer->total_len - xfer->actual_len, xfer->mps);
|
|
|
|
|
|
|
|
if ( dir == TUSB_DIR_OUT )
|
|
|
|
{
|
2018-03-20 12:33:06 +01:00
|
|
|
// HW issue on nrf5284 sample, SIZE.EPOUT won't trigger ACK as spec
|
|
|
|
// use the back door interface as sdk for walk around
|
2018-03-20 13:52:21 +01:00
|
|
|
if ( nrf_drv_usbd_errata_sizeepout_rw() )
|
|
|
|
{
|
|
|
|
*((volatile uint32_t *)(NRF_USBD_BASE + 0x800)) = 0x7C5 + 2*epnum;
|
|
|
|
*((volatile uint32_t *)(NRF_USBD_BASE + 0x804)) = 0;
|
|
|
|
(void) (((volatile uint32_t *)(NRF_USBD_BASE + 0x804)));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
// Overwrite size will allow hw to accept data
|
|
|
|
NRF_USBD->SIZE.EPOUT[epnum] = 0;
|
|
|
|
__ISB(); __DSB();
|
|
|
|
}
|
2018-03-16 20:17:40 +01:00
|
|
|
}else
|
|
|
|
{
|
|
|
|
NRF_USBD->EPIN[epnum].PTR = (uint32_t) xfer->buffer;
|
|
|
|
NRF_USBD->EPIN[epnum].MAXCNT = xact_len;
|
|
|
|
|
|
|
|
xfer->buffer += xact_len;
|
|
|
|
|
|
|
|
edpt_dma_start(epnum, TUSB_DIR_IN);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-03-23 06:32:40 +01:00
|
|
|
bool tusb_dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
|
2018-03-14 09:21:47 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-15 07:22:28 +01:00
|
|
|
|
2018-03-16 20:17:40 +01:00
|
|
|
uint8_t const epnum = edpt_number(desc_edpt->bEndpointAddress);
|
|
|
|
uint8_t const dir = edpt_dir(desc_edpt->bEndpointAddress);
|
|
|
|
|
|
|
|
_dcd.xfer[dir][epnum-1].mps = desc_edpt->wMaxPacketSize.size;
|
|
|
|
|
|
|
|
if ( dir == TUSB_DIR_OUT )
|
|
|
|
{
|
|
|
|
NRF_USBD->INTENSET = BIT_(USBD_INTEN_ENDEPOUT0_Pos + epnum);
|
|
|
|
NRF_USBD->EPOUTEN |= BIT_(epnum);
|
|
|
|
}else
|
|
|
|
{
|
|
|
|
NRF_USBD->INTENSET = BIT_(USBD_INTEN_ENDEPIN0_Pos + epnum);
|
|
|
|
NRF_USBD->EPINEN |= BIT_(epnum);
|
|
|
|
}
|
|
|
|
__ISB(); __DSB();
|
|
|
|
|
2018-03-14 09:21:47 +01:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2018-03-23 06:17:47 +01:00
|
|
|
bool tusb_dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes)
|
2018-03-14 09:21:47 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-16 20:17:40 +01:00
|
|
|
|
|
|
|
uint8_t const epnum = edpt_number(ep_addr);
|
|
|
|
uint8_t const dir = edpt_dir(ep_addr);
|
|
|
|
|
|
|
|
_dcd.xfer[dir][epnum-1].buffer = buffer;
|
|
|
|
_dcd.xfer[dir][epnum-1].total_len = total_bytes;
|
|
|
|
_dcd.xfer[dir][epnum-1].actual_len = 0;
|
|
|
|
|
|
|
|
normal_xact_start(epnum, dir);
|
|
|
|
|
|
|
|
// if ( dir == TUSB_DIR_OUT )
|
|
|
|
// {
|
|
|
|
// // TODO
|
|
|
|
// }else
|
|
|
|
// {
|
|
|
|
//
|
|
|
|
// }
|
|
|
|
|
2018-03-14 09:21:47 +01:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2018-03-23 06:17:47 +01:00
|
|
|
void tusb_dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr)
|
2018-03-14 09:21:47 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-21 10:08:42 +01:00
|
|
|
|
|
|
|
if ( ep_addr == 0)
|
|
|
|
{
|
|
|
|
NRF_USBD->TASKS_EP0STALL = 1;
|
|
|
|
}else
|
|
|
|
{
|
|
|
|
NRF_USBD->EPSTALL = (USBD_EPSTALL_STALL_Stall << USBD_EPSTALL_STALL_Pos) | ep_addr;
|
|
|
|
}
|
2018-03-14 09:21:47 +01:00
|
|
|
|
2018-03-21 10:08:42 +01:00
|
|
|
__ISB(); __DSB();
|
2018-03-14 09:21:47 +01:00
|
|
|
}
|
|
|
|
|
2018-03-23 06:17:47 +01:00
|
|
|
void tusb_dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
|
2018-03-14 09:21:47 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-21 10:08:42 +01:00
|
|
|
if ( ep_addr )
|
|
|
|
{
|
|
|
|
NRF_USBD->EPSTALL = (USBD_EPSTALL_STALL_UnStall << USBD_EPSTALL_STALL_Pos) | ep_addr;
|
|
|
|
}
|
2018-03-14 09:21:47 +01:00
|
|
|
}
|
|
|
|
|
2018-03-23 06:17:47 +01:00
|
|
|
bool tusb_dcd_edpt_busy (uint8_t rhport, uint8_t ep_addr)
|
2018-03-14 09:21:47 +01:00
|
|
|
{
|
2018-03-23 06:17:47 +01:00
|
|
|
(void) rhport;
|
2018-03-20 12:33:06 +01:00
|
|
|
|
|
|
|
// USBD shouldn't check control endpoint state
|
|
|
|
if ( 0 == ep_addr ) return false;
|
|
|
|
|
|
|
|
uint8_t const epnum = edpt_number(ep_addr);
|
|
|
|
uint8_t const dir = edpt_dir(ep_addr);
|
|
|
|
|
|
|
|
nom_xfer_t* xfer = &_dcd.xfer[dir][epnum-1];
|
|
|
|
|
|
|
|
return xfer->actual_len < xfer->total_len;
|
2018-03-14 09:21:47 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------*/
|
|
|
|
/*
|
|
|
|
*------------------------------------------------------------------*/
|
2018-03-13 10:59:51 +01:00
|
|
|
void USBD_IRQHandler(void)
|
|
|
|
{
|
|
|
|
uint32_t const inten = NRF_USBD->INTEN;
|
|
|
|
uint32_t int_status = 0;
|
|
|
|
|
|
|
|
volatile uint32_t* regclr = &NRF_USBD->EVENTS_USBRESET;
|
|
|
|
|
|
|
|
for(int i=0; i<32; i++)
|
|
|
|
{
|
|
|
|
if ( BIT_TEST_(inten, i) && regclr[i] )
|
|
|
|
{
|
|
|
|
int_status |= BIT_(i);
|
|
|
|
|
|
|
|
// nrf_usbd_event_clear()
|
|
|
|
regclr[i] = 0;
|
|
|
|
|
2018-03-16 20:17:40 +01:00
|
|
|
__ISB(); __DSB();
|
2018-03-13 10:59:51 +01:00
|
|
|
}
|
2018-03-14 16:01:29 +01:00
|
|
|
}
|
2018-03-13 10:59:51 +01:00
|
|
|
|
2018-03-14 16:01:29 +01:00
|
|
|
/*------------- Interrupt Processing -------------*/
|
|
|
|
if ( int_status & USBD_INTEN_USBRESET_Msk )
|
|
|
|
{
|
|
|
|
bus_reset();
|
2018-03-13 10:59:51 +01:00
|
|
|
|
2018-03-14 16:01:29 +01:00
|
|
|
tusb_dcd_bus_event(0, USBD_BUS_EVENT_RESET);
|
|
|
|
}
|
2018-03-14 09:21:47 +01:00
|
|
|
|
2018-03-20 12:33:06 +01:00
|
|
|
if ( int_status & USBD_INTEN_SOF_Msk )
|
|
|
|
{
|
|
|
|
tusb_dcd_bus_event(0, USBD_BUS_EVENT_SOF);
|
|
|
|
}
|
|
|
|
|
2018-03-16 20:17:40 +01:00
|
|
|
if ( int_status & EDPT_END_ALL_MASK )
|
|
|
|
{
|
|
|
|
// DMA complete move data from SRAM -> Endpoint
|
|
|
|
edpt_dma_end();
|
|
|
|
}
|
|
|
|
|
2018-03-15 11:09:55 +01:00
|
|
|
/*------------- Control Transfer -------------*/
|
2018-03-14 16:01:29 +01:00
|
|
|
if ( int_status & USBD_INTEN_EP0SETUP_Msk )
|
|
|
|
{
|
|
|
|
uint8_t setup[8] = {
|
|
|
|
NRF_USBD->BMREQUESTTYPE, NRF_USBD->BREQUEST, NRF_USBD->WVALUEL, NRF_USBD->WVALUEH,
|
|
|
|
NRF_USBD->WINDEXL, NRF_USBD->WINDEXH, NRF_USBD->WLENGTHL, NRF_USBD->WLENGTHH
|
|
|
|
};
|
2018-03-14 09:21:47 +01:00
|
|
|
|
2018-03-14 16:01:29 +01:00
|
|
|
tusb_dcd_setup_received(0, setup);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( int_status & USBD_INTEN_EP0DATADONE_Msk )
|
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
if ( _dcd.control.dir == TUSB_DIR_OUT )
|
2018-03-15 07:22:28 +01:00
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
// OUT data from Host -> Endpoint
|
|
|
|
// Trigger DMA to move Endpoint -> SRAM
|
2018-03-15 11:09:55 +01:00
|
|
|
edpt_dma_start(0, TUSB_DIR_OUT);
|
2018-03-15 07:22:28 +01:00
|
|
|
}else
|
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
// IN: data transferred from Endpoint -> Host
|
|
|
|
if ( _dcd.control.len > 0 )
|
2018-03-15 07:22:28 +01:00
|
|
|
{
|
|
|
|
control_xact_start();
|
|
|
|
}else
|
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
// Control IN complete
|
2018-03-15 07:22:28 +01:00
|
|
|
tusb_dcd_xfer_complete(0, 0, 0, true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( int_status & USBD_INTEN_ENDEPOUT0_Msk)
|
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
// OUT data moved from Endpoint -> SRAM
|
|
|
|
if ( _dcd.control.len > 0 )
|
2018-03-15 07:22:28 +01:00
|
|
|
{
|
|
|
|
control_xact_start();
|
|
|
|
}else
|
|
|
|
{
|
2018-03-16 20:17:40 +01:00
|
|
|
// Control OUT complete
|
2018-03-15 07:22:28 +01:00
|
|
|
tusb_dcd_xfer_complete(0, 0, 0, true);
|
|
|
|
}
|
2018-03-14 16:01:29 +01:00
|
|
|
}
|
2018-03-16 20:17:40 +01:00
|
|
|
|
|
|
|
/*------------- Bulk/Interrupt Transfer -------------*/
|
|
|
|
if ( int_status & USBD_INTEN_EPDATA_Msk)
|
|
|
|
{
|
|
|
|
uint32_t data_status = NRF_USBD->EPDATASTATUS;
|
|
|
|
|
|
|
|
nrf_usbd_epdatastatus_clear(data_status);
|
|
|
|
|
|
|
|
// In: data from Endpoint -> Host
|
|
|
|
for(uint8_t epnum=1; epnum<8; epnum++)
|
|
|
|
{
|
|
|
|
if ( BIT_TEST_(data_status, epnum ) )
|
|
|
|
{
|
|
|
|
nom_xfer_t* xfer = &_dcd.xfer[TUSB_DIR_IN][epnum-1];
|
|
|
|
|
|
|
|
xfer->actual_len += NRF_USBD->EPIN[epnum].MAXCNT;
|
|
|
|
|
|
|
|
if ( xfer->actual_len < xfer->total_len )
|
|
|
|
{
|
|
|
|
// more to xfer
|
|
|
|
normal_xact_start(epnum, TUSB_DIR_IN);
|
|
|
|
} else
|
|
|
|
{
|
2018-03-20 12:33:06 +01:00
|
|
|
// BULK/INT IN complete
|
2018-03-16 20:17:40 +01:00
|
|
|
tusb_dcd_xfer_complete(0, epnum | TUSB_DIR_IN_MASK, xfer->actual_len, true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// OUT: data from Host -> Endpoint
|
|
|
|
for(uint8_t epnum=1; epnum<8; epnum++)
|
|
|
|
{
|
|
|
|
if ( BIT_TEST_(data_status, 16+epnum ) )
|
|
|
|
{
|
|
|
|
nom_xfer_t* xfer = &_dcd.xfer[TUSB_DIR_OUT][epnum-1];
|
|
|
|
|
|
|
|
uint8_t const xact_len = NRF_USBD->SIZE.EPOUT[epnum];
|
|
|
|
|
|
|
|
// Trigger DMA move data from Endpoint -> SRAM
|
|
|
|
NRF_USBD->EPOUT[epnum].PTR = (uint32_t) xfer->buffer;
|
|
|
|
NRF_USBD->EPOUT[epnum].MAXCNT = xact_len;
|
|
|
|
|
|
|
|
edpt_dma_start(epnum, TUSB_DIR_OUT);
|
|
|
|
|
|
|
|
xfer->buffer += xact_len;
|
|
|
|
xfer->actual_len += xact_len;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// OUT: data from DMA -> SRAM
|
|
|
|
for(uint8_t epnum=1; epnum<8; epnum++)
|
|
|
|
{
|
|
|
|
if ( BIT_TEST_(int_status, USBD_INTEN_ENDEPOUT0_Pos+epnum) )
|
|
|
|
{
|
|
|
|
nom_xfer_t* xfer = &_dcd.xfer[TUSB_DIR_OUT][epnum-1];
|
|
|
|
|
|
|
|
// Transfer complete if transaction len < Max Packet Size or total len is transferred
|
|
|
|
if ( (NRF_USBD->EPOUT[epnum].AMOUNT == xfer->mps) && (xfer->actual_len < xfer->total_len) )
|
|
|
|
{
|
|
|
|
// Allow Host -> Endpoint
|
2018-03-20 12:33:06 +01:00
|
|
|
|
|
|
|
// HW issue on nrf5284 sample, SIZE.EPOUT won't trigger ACK as spec
|
|
|
|
// use the back door interface as sdk for walk around
|
2018-03-20 13:52:21 +01:00
|
|
|
if ( nrf_drv_usbd_errata_sizeepout_rw() )
|
|
|
|
{
|
|
|
|
*((volatile uint32_t *)(NRF_USBD_BASE + 0x800)) = 0x7C5 + 2*epnum;
|
|
|
|
*((volatile uint32_t *)(NRF_USBD_BASE + 0x804)) = 0;
|
|
|
|
(void) (((volatile uint32_t *)(NRF_USBD_BASE + 0x804)));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
// Overwrite size will allow hw to accept data
|
|
|
|
NRF_USBD->SIZE.EPOUT[epnum] = 0;
|
|
|
|
__ISB(); __DSB();
|
|
|
|
}
|
2018-03-16 20:17:40 +01:00
|
|
|
}else
|
|
|
|
{
|
2018-03-20 12:33:06 +01:00
|
|
|
xfer->total_len = xfer->actual_len;
|
|
|
|
|
|
|
|
// BULK/INT OUT complete
|
2018-03-16 20:17:40 +01:00
|
|
|
tusb_dcd_xfer_complete(0, epnum, xfer->actual_len, true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-03-13 10:59:51 +01:00
|
|
|
}
|