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Add SOF callback function for feedback value determination in uac - wip!

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This commit is contained in:
Reinhard Panhuber
2022-03-14 20:40:33 +01:00
parent 606f932d92
commit f212899b54
5 changed files with 156 additions and 9 deletions
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32
src/portable/synopsys/dwc2/dcd_dwc2.c
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@@ -93,6 +93,9 @@ static uint16_t ep0_pending[2]; // Index determines direction
static uint16_t _allocated_fifo_words_tx; // TX FIFO size in words (IN EPs)
static bool _out_ep_closed; // Flag to check if RX FIFO size needs an update (reduce its size)
// SOF enabling flag - required for SOF to not get disabled in ISR when SOF was enabled by
static bool _sof_en;
// Calculate the RX FIFO size according to recommendations from reference manual
static inline uint16_t calc_rx_ff_size(uint16_t ep_size)
{
@@ -126,6 +129,8 @@ static void bus_reset(uint8_t rhport)
tu_memclr(xfer_status, sizeof(xfer_status));
_out_ep_closed = false;
_sof_en = false;
// clear device address
dwc2->dcfg &= ~DCFG_DAD_Msk;
@@ -588,12 +593,23 @@ void dcd_disconnect(uint8_t rhport)
dwc2->dctl |= DCTL_SDIS;
}
// Be advised: audio, video and possibly other iso-ep classes use dcd_sof_enable() to enable/disable its corresponding ISR on purpose!
void dcd_sof_enable(uint8_t rhport, bool en)
{
(void) rhport;
(void) en;
dwc2_regs_t * dwc2 = DWC2_REG(rhport);
// TODO implement later
_sof_en = en;
if (en)
{
dwc2->gintsts = GINTSTS_SOF;
dwc2->gintmsk |= GINTMSK_SOFM;
}
else
{
dwc2->gintmsk &= ~GINTMSK_SOFM;
}
}
/*------------------------------------------------------------------*/
@@ -1258,8 +1274,16 @@ void dcd_int_handler(uint8_t rhport)
{
dwc2->gotgint = GINTSTS_SOF;
// Disable SOF interrupt since currently only used for remote wakeup detection
dwc2->gintmsk &= ~GINTMSK_SOFM;
if (_sof_en)
{
uint32_t frame = (dwc2->dsts & (USB_OTG_DSTS_FNSOF)) >> 8;
dcd_event_sof(rhport, frame, true);
}
else
{
// Disable SOF interrupt if SOF was not explicitly enabled. SOF was used for remote wakeup detection
dwc2->gintmsk &= ~GINTMSK_SOFM;
}
dcd_event_bus_signal(rhport, DCD_EVENT_SOF, true);
}