u8 process_nyet_on_bulk(td_t *result_td,
hc_info_t *hc_reg_data)
{
if(result_td->parent_ed_p->ed_desc.is_ep_in)
{
// Error State....
return NO_ACTION;
}
result_td->err_cnt = 0;
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
clear_ch_intr(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NYET);
result_td->transferred_szie += calc_transferred_size(false,result_td, hc_reg_data);
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
update_datatgl(hc_reg_data->hc_size.b.pid, result_td);
return RE_TRANSMIT;
}
u8 process_nak_on_control( td_t *result_td,
hc_info_t *hc_reg_data)
{
result_td->err_cnt = 0;
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
clear_ch_intr(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
//at OUT Transfer, we must re-transmit.
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
result_td->transferred_szie += calc_transferred_size(false,result_td, hc_reg_data);
update_datatgl(hc_reg_data->hc_size.b.pid, result_td);
}
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
if(result_td->standard_dev_req_info.conrol_transfer_stage == DATA_STAGE)
{
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
}
else if(result_td->standard_dev_req_info.conrol_transfer_stage == STATUS_STAGE)
{
if(result_td->parent_ed_p->ed_desc.is_ep_in==true)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
}
return RE_SCHEDULE;
}
u8 process_xacterr_on_bulk( td_t *result_td,
hc_info_t *hc_reg_data)
{
u8 ret_val = 0;
if(result_td->err_cnt<RETRANSMIT_THRESHOLD)
{
result_td->cur_stransfer.hc_reg.hc_int_msk.d32 |= (CH_STATUS_ACK+CH_STATUS_NAK+CH_STATUS_DataTglErr);
ret_val = RE_TRANSMIT;
result_td->err_cnt++ ;
}
else
{
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
ret_val = DE_ALLOCATE;
result_td->err_cnt = 0 ;
result_td->error_code = USB_ERR_STATUS_XACTERR;
}
clear_ch_intr(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
result_td->transferred_szie += calc_transferred_size(false,result_td, hc_reg_data);
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
}
update_datatgl(hc_reg_data->hc_size.b.pid, result_td);
return ret_val;
}
u8 process_stall_on_bulk( td_t * result_td,
hc_info_t * hc_reg_data)
{
result_td->err_cnt =0;
result_td->error_code =USB_ERR_STATUS_STALL;
//this channel is stalled, So we don't process another interrupts.
clear_ch_intr(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ALL);
//Mask ack Interrupt..
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
result_td->parent_ed_p->ed_status.is_ping_enable = false;
result_td->transferred_szie += calc_transferred_size(false,result_td, hc_reg_data);
update_datatgl(DATA0, result_td);
return DE_ALLOCATE;
}
u8 process_xfercompl_on_control(td_t *result_td,
hc_info_t *hc_reg_data)
{
u8 ret_val = 0;
result_td->err_cnt = 0;
clear_ch_intr(result_td->cur_stransfer.alloc_chnum,CH_STATUS_ALL);
//Mask ack Interrupt..
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
result_td->parent_ed_p->ed_status.is_ping_enable =false;
switch(result_td->standard_dev_req_info.conrol_transfer_stage)
{
case SETUP_STAGE:
if(result_td->standard_dev_req_info.is_data_stage)
{
result_td->standard_dev_req_info.conrol_transfer_stage = DATA_STAGE;
}
else
{
result_td->standard_dev_req_info.conrol_transfer_stage = STATUS_STAGE;
}
ret_val = RE_TRANSMIT;
break;
case DATA_STAGE:
result_td->transferred_szie += calc_transferred_size(true,result_td, hc_reg_data);
if(result_td->transferred_szie==result_td->buf_size)
{ //at IN Transfer, short transfer is accepted.
result_td->standard_dev_req_info.conrol_transfer_stage =STATUS_STAGE;
result_td->error_code = USB_ERR_STATUS_COMPLETE;
}
else
{
if(result_td->parent_ed_p->ed_desc.is_ep_in&& hc_reg_data->hc_size.b.xfersize)
{
if(result_td->transfer_flag&USB_TRANS_FLAG_NOT_SHORT)
{
result_td->error_code =USB_ERR_STATUS_SHORTREAD;
result_td->standard_dev_req_info.conrol_transfer_stage=STATUS_STAGE;
}
else
{
result_td->error_code =USB_ERR_STATUS_COMPLETE;
result_td->standard_dev_req_info.conrol_transfer_stage =STATUS_STAGE;
}
}
else
{ // the Data Stage is not completed. So we need to continue Data Stage.
result_td->standard_dev_req_info.conrol_transfer_stage = DATA_STAGE;
update_datatgl(hc_reg_data->hc_size.b.pid, result_td);
}
}
if(hc_reg_data->hc_int.b.nyet)
{
//at OUT Transfer, we must re-transmit.
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
}
}
ret_val = RE_TRANSMIT;
break;
case STATUS_STAGE:
result_td->standard_dev_req_info.conrol_transfer_stage = COMPLETE_STAGE;
if(hc_reg_data->hc_int.b.nyet)
{
//at OUT Transfer, we must re-transmit.
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
}
}
ret_val = DE_ALLOCATE;
break;
default:
break;
}
return ret_val;
}
u8 process_xfercompl_on_bulk(td_t *result_td,
hc_info_t *hc_reg_data)
{
u8 ret_val=0;
result_td->err_cnt = 0;
clear_ch_intr(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ALL);
//Mask ack Interrupt..
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_ACK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_NAK);
mask_channel_interrupt(result_td->cur_stransfer.alloc_chnum, CH_STATUS_DataTglErr);
result_td->parent_ed_p->ed_status.is_ping_enable =false;
result_td->transferred_szie += calc_transferred_size(true,result_td, hc_reg_data);
if(result_td->transferred_szie==result_td->buf_size)
{//at IN Transfer, short transfer is accepted.
result_td->error_code = USB_ERR_STATUS_COMPLETE;
ret_val = DE_ALLOCATE;
}
else
{
if(result_td->parent_ed_p->ed_desc.is_ep_in&& hc_reg_data->hc_size.b.xfersize)
{
if(result_td->transfer_flag&USB_TRANS_FLAG_NOT_SHORT)
{
result_td->error_code =USB_ERR_STATUS_SHORTREAD;
}
else
{
result_td->error_code =USB_ERR_STATUS_COMPLETE;
}
ret_val = DE_ALLOCATE;
}
else
{
ret_val = RE_SCHEDULE;
}
}
update_datatgl(hc_reg_data->hc_size.b.pid, result_td);
if(hc_reg_data->hc_int.b.nyet)
{
//at OUT Transfer, we must re-transmit.
if(result_td->parent_ed_p->ed_desc.is_ep_in==false)
{
if(result_td->parent_ed_p->ed_desc.dev_speed == HIGH_SPEED_OTG)
{
result_td->parent_ed_p->ed_status.is_ping_enable = true;
}
else
{
result_td->parent_ed_p->ed_status.is_ping_enable = false;
}
}
}
return ret_val;
}