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refractor dcd lpc43xx control xfer (with int on complete)

This commit is contained in:
hathach 2013-12-09 11:49:34 +07:00
parent 055285c559
commit 2af9ecbed5
1 changed files with 51 additions and 21 deletions
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72
tinyusb/device/dcd_lpc43xx.c
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@ -351,20 +351,35 @@ void dcd_pipe_control_stall(uint8_t coreid)
}
// control transfer does not need to use qtd find function
tusb_error_t dcd_pipe_control_xfer(uint8_t coreid, tusb_direction_t dir, void * buffer, uint16_t length)
tusb_error_t dcd_pipe_control_xfer(uint8_t coreid, tusb_direction_t dir, void * p_buffer, uint16_t length, bool int_on_complete)
{
LPC_USB0_Type* const lpc_usb = LPC_USB[coreid];
dcd_data_t* p_dcd = dcd_data_ptr[coreid];
dcd_data_t* const p_dcd = dcd_data_ptr[coreid];
uint8_t const ep_id = dir; // IN : 1, OUT = 0
// determine Endpoint where Data & Status phase occurred (IN or OUT)
uint8_t const ep_data = (dir == TUSB_DIR_DEV_TO_HOST) ? 1 : 0;
uint8_t const ep_status = 1 - ep_data;
ASSERT_FALSE(p_dcd->qhd[ep_id].qtd_overlay.active, TUSB_ERROR_FAILED);
ASSERT_FALSE(p_dcd->qhd[0].qtd_overlay.active || p_dcd->qhd[1].qtd_overlay.active, TUSB_ERROR_FAILED);
dcd_qtd_t* p_qtd = &p_dcd->qtd[ep_id];
qtd_init(p_qtd, buffer, length);
p_dcd->qhd[ep_id].qtd_overlay.next = (uint32_t) p_qtd;
//------------- Data Phase -------------//
if (length)
{
dcd_qtd_t* p_qtd_data = &p_dcd->qtd[0];
qtd_init(p_qtd_data, p_buffer, length);
p_dcd->qhd[ep_data].qtd_overlay.next = (uint32_t) p_qtd_data;
lpc_usb->ENDPTPRIME = BIT_( edpt_phy2pos(ep_id) );
lpc_usb->ENDPTPRIME = BIT_( edpt_phy2pos(ep_data) );
}
//------------- Status Phase -------------//
dcd_qtd_t* p_qtd_status = &p_dcd->qtd[1];
qtd_init(p_qtd_status, NULL, 0); // zero length xfer
p_qtd_status->int_on_complete = int_on_complete ? 1 : 0;
p_dcd->qhd[ep_status].qtd_overlay.next = (uint32_t) p_qtd_status;
LPC_USB0->ENDPTPRIME |= BIT_( edpt_phy2pos(ep_status) );
return TUSB_ERROR_NONE;
}
@ -565,32 +580,47 @@ void dcd_isr(uint8_t coreid)
if (int_status & INT_MASK_USB)
{
uint32_t const edpt_complete = lpc_usb->ENDPTCOMPLETE;
lpc_usb->ENDPTCOMPLETE = edpt_complete; // acknowledge
dcd_data_t* const p_dcd = dcd_data_ptr[coreid];
//------------- Set up Received -------------//
if (lpc_usb->ENDPTSETUPSTAT)
{ // 23.10.10.2 Operational model for setup transfers
dcd_data_t* p_dcd = dcd_data_ptr[coreid];
tusb_control_request_t control_request = p_dcd->qhd[0].setup_request;
lpc_usb->ENDPTSETUPSTAT = lpc_usb->ENDPTSETUPSTAT;
//------------- Flush if previous transfer is not done -------------//
if (p_dcd->qhd[0].qtd_overlay.active || p_dcd->qhd[1].qtd_overlay.active)
{
do
{
lpc_usb->ENDPTFLUSH = BIT_(0) | BIT_(16);
while(lpc_usb->ENDPTFLUSH) {} // TODO refractor later
}while( lpc_usb->ENDPTSTAT & (BIT_(0) | BIT_(16)) );
p_dcd->qhd[0].qtd_overlay.active = p_dcd->qhd[1].qtd_overlay.active = 0;
}
// if (p_dcd->qhd[0].qtd_overlay.active || p_dcd->qhd[1].qtd_overlay.active)
// {
// do
// {
// lpc_usb->ENDPTFLUSH = BIT_(0) | BIT_(16);
// while(lpc_usb->ENDPTFLUSH) {} // TODO refractor later
// }while( lpc_usb->ENDPTSTAT & (BIT_(0) | BIT_(16)) );
//
// p_dcd->qhd[0].qtd_overlay.active = p_dcd->qhd[1].qtd_overlay.active = 0;
// }
usbd_setup_received_isr(coreid, &control_request);
}else if ( edpt_complete & 0x03 )
{ // only either of Endpoint Control is set with interrupt on complete flag
endpoint_handle_t edpt_hdl =
{
.coreid = coreid,
.index = 0,
.class_code = 0
};
dcd_qtd_t * const p_qtd = &p_dcd->qhd[ (edpt_complete & BIT_(0)) ? 0 : 1 ].qtd_overlay;
tusb_event_t event = ( p_qtd->xact_err || p_qtd->halted || p_qtd->buffer_err ) ? TUSB_EVENT_XFER_ERROR : TUSB_EVENT_XFER_COMPLETE;
usbd_xfer_isr(edpt_hdl, event, 0); // TODO xferred bytes for control xfer is not needed yet !!!!
}
//------------- Transfer Complete -------------//
uint32_t edpt_complete = lpc_usb->ENDPTCOMPLETE;
lpc_usb->ENDPTCOMPLETE = edpt_complete; // acknowledge
if (edpt_complete)
{