diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/core.h | 5 | ||||
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 4094d3dee25a..5fa05a3ec318 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -175,6 +175,8 @@ struct dwc2_hsotg_req; * @desc_list_dma: The DMA address of descriptor chain currently in use. * @desc_list: Pointer to descriptor DMA chain head currently in use. * @desc_count: Count of entries within the DMA descriptor chain of EP. + * @isoc_chain_num: Number of ISOC chain currently in use - either 0 or 1. + * @next_desc: index of next free descriptor in the ISOC chain under SW control. * @total_data: The total number of data bytes done. * @fifo_size: The size of the FIFO (for periodic IN endpoints) * @fifo_load: The amount of data loaded into the FIFO (periodic IN) @@ -226,6 +228,9 @@ struct dwc2_hsotg_ep { struct dwc2_dma_desc *desc_list; u8 desc_count; + unsigned char isoc_chain_num; + unsigned int next_desc; + char name[10]; }; diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index e12b1f0b0b72..c32520d18d39 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3356,6 +3356,8 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, hs_ep->isochronous = 1; hs_ep->interval = 1 << (desc->bInterval - 1); hs_ep->target_frame = TARGET_FRAME_INITIAL; + hs_ep->isoc_chain_num = 0; + hs_ep->next_desc = 0; if (dir_in) { hs_ep->periodic = 1; mask = dwc2_readl(hsotg->regs + DIEPMSK); |