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update dcd samd21

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hathach 2018-11-21 13:01:39 +07:00
parent 155edc7b00
commit a0ce92bcfd
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GPG Key ID: 2FA891220FBFD581
1 changed files with 20 additions and 28 deletions
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46
src/portable/microchip/samd21/dcd_samd21.c
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@ -45,8 +45,6 @@
#include "device/usbd.h"
#include "device/usbd_pvt.h" // to use defer function helper
#include "class/msc/msc_device.h"
#include "sam.h"
/*------------------------------------------------------------------*/
@ -58,9 +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;
@ -76,7 +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;
}
@ -107,7 +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;
@ -121,20 +119,9 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num)
}
/*------------------------------------------------------------------*/
/* Control
/* DCD Endpoint port
*------------------------------------------------------------------*/
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;
@ -163,7 +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;
}
@ -222,9 +208,12 @@ 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)
@ -266,7 +255,6 @@ static bool maybe_handle_setup_packet(void) {
// 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;
}
@ -287,12 +275,14 @@ void maybe_transfer_complete(void) {
uint32_t epintflag = ep->EPINTFLAG.reg;
uint16_t total_transfer_size;
// Handle IN completions
if ((epintflag & USB_DEVICE_EPINTFLAG_TRCPT1) != 0) {
ep->EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRCPT1;
UsbDeviceDescBank* bank = &sram_registers[epnum][TUSB_DIR_IN];
uint16_t total_transfer_size = bank->PCKSIZE.bit.BYTE_COUNT;
total_transfer_size = bank->PCKSIZE.bit.BYTE_COUNT;
uint8_t ep_addr = epnum | TUSB_DIR_IN_MASK;
dcd_event_xfer_complete(0, ep_addr, total_transfer_size, DCD_XFER_SUCCESS, true);
@ -303,13 +293,15 @@ void maybe_transfer_complete(void) {
ep->EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRCPT0;
UsbDeviceDescBank* bank = &sram_registers[epnum][TUSB_DIR_OUT];
uint16_t total_transfer_size = bank->PCKSIZE.bit.BYTE_COUNT;
total_transfer_size = bank->PCKSIZE.bit.BYTE_COUNT;
uint8_t ep_addr = epnum;
dcd_event_xfer_complete(0, ep_addr, total_transfer_size, DCD_XFER_SUCCESS, true);
if (epnum == 0) {
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));
}
}
}