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Update dcd_esp32s2.c

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This commit is contained in:
me-no-dev 2020-07-28 10:54:23 +03:00
parent 6178f8de2f
commit a1a390a788
1 changed files with 9 additions and 13 deletions

22
src/portable/espressif/esp32s2/dcd_esp32s2.c

@ -54,6 +54,9 @@
// FIFO size in bytes
#define EP_FIFO_SIZE 1024
// Max number of IN EP FIFOs
#define EP_FIFO_NUM 5
typedef struct {
uint8_t *buffer;
uint16_t total_len;
@ -71,17 +74,12 @@ static uint32_t _setup_packet[2];
#define XFER_CTL_BASE(_ep, _dir) &xfer_status[_ep][_dir]
static xfer_ctl_t xfer_status[EP_MAX][2];
// Max number of IN EP FIFOs
#define USB_FIFO_NUM 5
// Keep count of how many FIFOs are in use
static uint8_t dcd_allocated_fifos = 1; //FIFO0 is always in use
static uint8_t _allocated_fifos = 1; //FIFO0 is always in use
// Will either return an unused FIFO number, or 0 if all are used.
static uint8_t dcd_get_free_fifo(){
if (dcd_allocated_fifos < USB_FIFO_NUM) {
return dcd_allocated_fifos++;
}
static uint8_t get_free_fifo(){
if (_allocated_fifos < EP_FIFO_NUM) return _allocated_fifos++;
return 0;
}
@ -285,7 +283,7 @@ bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const *desc_edpt)
// - Offset: GRXFSIZ + 16 + Size*(epnum-1)
// - IN EP 1 gets FIFO 1, IN EP "n" gets FIFO "n".
uint8_t fifo_num = dcd_get_free_fifo();
uint8_t fifo_num = get_free_fifo();
TU_ASSERT(fifo_num != 0);
in_ep[epnum].diepctl &= ~(USB_D_TXFNUM1_M | USB_D_EPTYPE1_M | USB_DI_SETD0PID1 | USB_D_MPS1_M);
@ -300,7 +298,7 @@ bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const *desc_edpt)
// Both TXFD and TXSA are in unit of 32-bit words.
// IN FIFO 0 was configured during enumeration, hence the "+ 16".
uint16_t const allocated_size = (USB0.grxfsiz & 0x0000ffff) + 16;
uint16_t const fifo_size = (EP_FIFO_SIZE/4 - allocated_size) / (USB_FIFO_NUM-1);
uint16_t const fifo_size = (EP_FIFO_SIZE/4 - allocated_size) / (EP_FIFO_NUM-1);
uint32_t const fifo_offset = allocated_size + fifo_size*(fifo_num-1);
// DIEPTXF starts at FIFO #1.
@ -673,7 +671,7 @@ static void _dcd_int_handler(void* arg)
ESP_EARLY_LOGV(TAG, "dcd_int_handler - reset");
USB0.gintsts = USB_USBRST_M;
// FIFOs will be reassigned when the endpoints are reopen
dcd_allocated_fifos = 1;
_allocated_fifos = 1;
bus_reset();
}
@ -702,8 +700,6 @@ static void _dcd_int_handler(void* arg)
if (otg_int & USB_SESENDDET_M)
{
dcd_event_bus_signal(0, DCD_EVENT_UNPLUGGED, true);
// FIFOs will be reassigned when the endpoints are reopen
dcd_allocated_fifos = 1;
}
USB0.gotgint = otg_int;