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https://github.com/hathach/tinyusb.git
synced 2025-03-14 04:18:56 +00:00
add dma guard
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parent
b0ec6124e0
commit
87a2c935df
@ -62,7 +62,7 @@ static struct
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uint8_t dir;
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}control;
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bool dma_running;
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volatile bool dma_running;
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}_dcd_data;
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/*------------------------------------------------------------------*/
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@ -142,7 +142,7 @@ static void power_usb_event_handler(nrf_drv_power_usb_evt_t event)
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// Enable interrupt
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NRF_USBD->INTENSET = USBD_INTEN_USBRESET_Msk | USBD_INTEN_USBEVENT_Msk | USBD_INTEN_ACCESSFAULT_Msk |
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USBD_INTEN_EP0SETUP_Msk | USBD_INTEN_EP0DATADONE_Msk |
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/*USBD_INTEN_ENDEPIN0_Msk |*/ USBD_INTEN_ENDEPOUT0_Msk |
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USBD_INTEN_ENDEPIN0_Msk | USBD_INTEN_ENDEPOUT0_Msk |
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/*USBD_INTEN_STARTED_Msk |*/ USBD_INTEN_EPDATA_Msk ;
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//USBD_INTEN_SOF_Msk
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@ -181,6 +181,23 @@ static void power_usb_event_handler(nrf_drv_power_usb_evt_t event)
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}
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}
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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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varclr(&_dcd_data);
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}
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/*------------------------------------------------------------------*/
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/* Controller API
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*------------------------------------------------------------------*/
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bool tusb_dcd_init (uint8_t port)
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{
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// USB Power detection
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@ -212,6 +229,26 @@ void tusb_dcd_set_config (uint8_t port, uint8_t config_num)
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/*------------------------------------------------------------------*/
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/* Control
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*------------------------------------------------------------------*/
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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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while ( _dcd_data.dma_running ) { }
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_dcd_data.dma_running = true;
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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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}
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static void edpt_dma_end(void)
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{
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_dcd_data.dma_running = false;
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}
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static void control_xact_start(void)
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{
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@ -230,31 +267,30 @@ static void control_xact_start(void)
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NRF_USBD->EPIN[0].PTR = (uint32_t) _dcd_data.control.buffer;
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NRF_USBD->EPIN[0].MAXCNT = xact_len;
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NRF_USBD->TASKS_STARTEPIN[0] = 1;
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edpt_dma_start(0, TUSB_DIR_IN);
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}
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_dcd_data.control.buffer += xact_len;
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_dcd_data.control.xfer_len -= xact_len;
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}
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static void control_xact_done(void)
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{
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if ( _dcd_data.control.xfer_len > 0 )
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{
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if ( _dcd_data.control.dir == TUSB_DIR_OUT )
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{
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// out control need to wait for END EPOUT event before updating Pointer
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NRF_USBD->TASKS_STARTEPOUT[0] = 1;
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}else
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{
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control_xact_start();
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}
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}else
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{
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tusb_dcd_xfer_complete(0, 0, 0, true);
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}
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}
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//static void control_xact_done(void)
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//{
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// if ( _dcd_data.control.xfer_len > 0 )
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// {
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// if ( _dcd_data.control.dir == TUSB_DIR_OUT )
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// {
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// // out control need to wait for END EPOUT event before updating Pointer
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// edpt_dma_start(0, TUSB_DIR_OUT);
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// }else
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// {
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// control_xact_start();
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// }
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// }else
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// {
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// tusb_dcd_xfer_complete(0, 0, 0, true);
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// }
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//}
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bool tusb_dcd_control_xfer (uint8_t port, tusb_dir_t dir, uint8_t * buffer, uint16_t length, bool int_on_complete)
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@ -322,20 +358,6 @@ bool tusb_dcd_edpt_busy (uint8_t port, uint8_t edpt_addr)
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/*------------------------------------------------------------------*/
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/*
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*------------------------------------------------------------------*/
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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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varclr(&_dcd_data);
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}
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void USBD_IRQHandler(void)
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{
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uint32_t const inten = NRF_USBD->INTEN;
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@ -455,6 +477,7 @@ void USBD_IRQHandler(void)
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tusb_dcd_bus_event(0, USBD_BUS_EVENT_RESET);
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}
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/*------------- Control Transfer -------------*/
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if ( int_status & USBD_INTEN_EP0SETUP_Msk )
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{
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uint8_t setup[8] = {
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@ -466,12 +489,17 @@ void USBD_IRQHandler(void)
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tusb_dcd_setup_received(0, setup);
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}
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if ( int_status & USBD_INTEN_ENDEPIN0_Msk )
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{
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edpt_dma_end();
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}
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if ( int_status & USBD_INTEN_EP0DATADONE_Msk )
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{
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if ( _dcd_data.control.dir == TUSB_DIR_OUT )
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{
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// out control need to wait for END EPOUT (DMA complete) event
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NRF_USBD->TASKS_STARTEPOUT[0] = 1;
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edpt_dma_start(0, TUSB_DIR_OUT);
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}else
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{
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if ( _dcd_data.control.xfer_len > 0 )
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@ -487,6 +515,8 @@ void USBD_IRQHandler(void)
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if ( int_status & USBD_INTEN_ENDEPOUT0_Msk)
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{
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edpt_dma_end();
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if ( _dcd_data.control.xfer_len > 0 )
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{
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control_xact_start();
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