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samd51 fix stable issue with dcd

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This commit is contained in:
hathach
2018-11-20 17:25:41 +07:00
parent 4ded192080
commit d036f62b0e
4 changed files with 44 additions and 35 deletions
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40
src/portable/microchip/samd51/dcd_samd51.c
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@@ -56,9 +56,8 @@ enum
MAX_PACKET_SIZE = 64,
};
UsbDeviceDescBank sram_registers[8][2];
ATTR_ALIGNED(4) uint8_t control_out_buffer[64];
ATTR_ALIGNED(4) uint8_t control_in_buffer[64];
static UsbDeviceDescBank sram_registers[8][2];
static ATTR_ALIGNED(4) uint8_t setup_packet[8];
volatile uint32_t setup_count = 0;
@@ -74,7 +73,8 @@ static void bus_reset(void) {
ep->EPCFG.reg = USB_DEVICE_EPCFG_EPTYPE0(0x1) | USB_DEVICE_EPCFG_EPTYPE1(0x1);
ep->EPINTENSET.reg = USB_DEVICE_EPINTENSET_TRCPT0 | USB_DEVICE_EPINTENSET_TRCPT1 | USB_DEVICE_EPINTENSET_RXSTP;
dcd_edpt_xfer(0, 0, control_out_buffer, 64);
// Prepare for setup packet
dcd_edpt_xfer(0, 0, setup_packet, sizeof(setup_packet));
setup_count = 0;
}
@@ -105,7 +105,7 @@ void dcd_disconnect (uint8_t rhport)
void dcd_set_address (uint8_t rhport, uint8_t dev_addr)
{
(void) rhport;
dcd_edpt_xfer (0, TUSB_DIR_IN_MASK, NULL, 0);
// Wait for EP0 to finish before switching the address.
while (USB->DEVICE.DeviceEndpoint[0].EPSTATUS.bit.BK1RDY == 1) {}
USB->DEVICE.DADD.reg = USB_DEVICE_DADD_DADD(dev_addr) | USB_DEVICE_DADD_ADDEN;
@@ -119,20 +119,9 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num)
}
/*------------------------------------------------------------------*/
/* Control
/* DCD Endpoint
*------------------------------------------------------------------*/
bool dcd_control_xfer (uint8_t rhport, uint8_t dir, uint8_t * buffer, uint16_t length)
{
(void) rhport;
uint8_t ep_addr = 0;
if (dir == TUSB_DIR_IN) {
ep_addr |= TUSB_DIR_IN_MASK;
}
return dcd_edpt_xfer (rhport, ep_addr, buffer, length);
}
bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
{
(void) rhport;
@@ -161,7 +150,6 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
ep->EPCFG.bit.EPTYPE1 = desc_edpt->bmAttributes.xfer + 1;
ep->EPINTENSET.bit.TRCPT1 = true;
}
__ISB(); __DSB();
return true;
}
@@ -219,9 +207,12 @@ void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr)
ep->EPSTATUSSET.reg = USB_DEVICE_EPSTATUSSET_STALLRQ1;
} else {
ep->EPSTATUSSET.reg = USB_DEVICE_EPSTATUSSET_STALLRQ0;
}
__ISB(); __DSB();
// for control, stall both IN & OUT
if (ep_addr == 0) {
ep->EPSTATUSSET.reg = USB_DEVICE_EPSTATUSSET_STALLRQ1;
}
}
}
void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
@@ -260,12 +251,12 @@ static bool maybe_handle_setup_packet(void) {
if (USB->DEVICE.DeviceEndpoint[0].EPINTFLAG.bit.RXSTP)
{
USB->DEVICE.DeviceEndpoint[0].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_RXSTP;
// uint8_t* buf = (uint8_t*) sram_registers[0][0].ADDR.reg;
//
// if (buf[6] == 0x12) asm("bkpt");
// This copies the data elsewhere so we can reuse the buffer.
dcd_event_setup_received(0, (uint8_t*) sram_registers[0][0].ADDR.reg, true);
dcd_edpt_xfer(0, 0, control_out_buffer, 64);
setup_count += 1;
return true;
}
@@ -330,9 +321,12 @@ void transfer_complete(uint8_t direction) {
ep_addr |= TUSB_DIR_IN_MASK;
}
dcd_event_xfer_complete(0, ep_addr, total_transfer_size, DCD_XFER_SUCCESS, true);
if (epnum == 0 && direction == TUSB_DIR_OUT) {
dcd_edpt_xfer(0, 0, control_out_buffer, 64);
// just finished status stage (total size = 0), prepare for next setup packet
if (epnum == 0 && total_transfer_size == 0) {
dcd_edpt_xfer(0, 0, setup_packet, sizeof(setup_packet));
}
if (direction == TUSB_DIR_IN) {
ep->EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRCPT1;
} else {