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Clean up

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This commit is contained in:
Reinhard Panhuber 2021-01-03 17:59:50 +01:00
parent 56c47188d8
commit 13b499f910
1 changed files with 11 additions and 11 deletions
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20
src/portable/st/synopsys/dcd_synopsys.c
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@ -149,7 +149,7 @@ static uint16_t ep0_pending[2]; // Index determines direction as tusb_dir_t
// TX FIFO RAM allocation so far in words - RX FIFO size is readily available from usb_otg->GRXFSIZ // TX FIFO RAM allocation so far in words - RX FIFO size is readily available from usb_otg->GRXFSIZ
static uint16_t _allocated_fifo_words_tx; // TX FIFO size in words (IN EPs) static uint16_t _allocated_fifo_words_tx; // TX FIFO size in words (IN EPs)
static bool _rx_ep_closed; static bool _rx_ep_closed; // Flag to check if RX FIFO size needs an update (reduce its size)
// Setup the control endpoint 0. // Setup the control endpoint 0.
static void bus_reset(uint8_t rhport) static void bus_reset(uint8_t rhport)
@ -563,15 +563,15 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
if(dir == TUSB_DIR_OUT) if(dir == TUSB_DIR_OUT)
{ {
// Calculate required size of RX FIFO // Calculate required size of RX FIFO
uint16_t size_rx = 15 + 2*fifo_size + 2*EP_MAX; uint16_t const sz = 15 + 2*fifo_size + 2*EP_MAX;
// If size_rx needs to be extended check if possible and if so enlarge it // If size_rx needs to be extended check if possible and if so enlarge it
if (usb_otg->GRXFSIZ < size_rx) if (usb_otg->GRXFSIZ < sz)
{ {
TU_ASSERT(size_rx + _allocated_fifo_words_tx <= EP_FIFO_SIZE/4); TU_ASSERT(sz + _allocated_fifo_words_tx <= EP_FIFO_SIZE/4);
// Enlarge RX FIFO // Enlarge RX FIFO
usb_otg->GRXFSIZ = size_rx; usb_otg->GRXFSIZ = sz;
} }
out_ep[epnum].DOEPCTL |= (1 << USB_OTG_DOEPCTL_USBAEP_Pos) | out_ep[epnum].DOEPCTL |= (1 << USB_OTG_DOEPCTL_USBAEP_Pos) |
@ -736,6 +736,10 @@ void dcd_edpt_close (uint8_t rhport, uint8_t ep_addr)
uint8_t const dir = tu_edpt_dir(ep_addr); uint8_t const dir = tu_edpt_dir(ep_addr);
dcd_edpt_disable(rhport, ep_addr, false); dcd_edpt_disable(rhport, ep_addr, false);
// Update max_size
xfer_status[epnum][dir].max_size = 0; // max_size = 0 marks a disabled EP - required for changing FIFO allocation
if (dir == TUSB_DIR_IN) if (dir == TUSB_DIR_IN)
{ {
uint16_t const fifo_size = (usb_otg->DIEPTXF[epnum - 1] & USB_OTG_DIEPTXF_INEPTXFD_Msk) >> USB_OTG_DIEPTXF_INEPTXFD_Pos; uint16_t const fifo_size = (usb_otg->DIEPTXF[epnum - 1] & USB_OTG_DIEPTXF_INEPTXFD_Msk) >> USB_OTG_DIEPTXF_INEPTXFD_Pos;
@ -746,11 +750,7 @@ void dcd_edpt_close (uint8_t rhport, uint8_t ep_addr)
} }
else else
{ {
// Update max_size _rx_ep_closed = true; // Set flag such that RX FIFO gets reduced in size once RX FIFO is empty
xfer_status[epnum][TUSB_DIR_OUT].max_size = 0;
// Set flag such that RX FIFO gets reduced in size one RX FIFO is empty
_rx_ep_closed = true;
} }
} }