UFRAMES_PER_FRAME
j = XHCI_MTK_BW_INDEX(offset) / UFRAMES_PER_FRAME;
k = XHCI_MTK_BW_INDEX(offset + sch_ep->num_budget_microframes - 1) / UFRAMES_PER_FRAME;
j = roundup(offset, UFRAMES_PER_FRAME);
start_ss = offset % UFRAMES_PER_FRAME;
start_cs = (start_ss + CS_OFFSET) % UFRAMES_PER_FRAME;
frames = sch_ep->esit / UFRAMES_PER_FRAME;
for (i = 0; i < UFRAMES_PER_FRAME; i++) {
offset = (i + j * UFRAMES_PER_FRAME) % sch_ep->esit;
f = k / UFRAMES_PER_FRAME;
#define XHCI_MTK_FRAMES_CNT (XHCI_MTK_MAX_ESIT / UFRAMES_PER_FRAME)