Data Fields
unsigned int	ch_idx

int	ep_num

bool	enabled

int	max_pkt

bool	is_tx

struct bcm63xx_ep *	bep

struct bcm63xx_udc *	udc

struct bcm_enet_desc *	read_bd

struct bcm_enet_desc *	write_bd

struct bcm_enet_desc *	end_bd

int	n_bds_used

struct bcm_enet_desc *	bd_ring

dma_addr_t	bd_ring_dma

unsigned int	n_bds

Detailed Description

struct iudma_ch - Represents the current state of a single IUDMA channel. : IUDMA channel index (0 to BCM63XX_NUM_IUDMA-1). : USB endpoint number. -1 for ep0 RX. : Whether bcm63xx_ep_enable() has been called. : "Chunk size" on the USB interface. Based on interface speed. : true for TX, false for RX. : Pointer to the associated endpoint. NULL for ep0 RX. : Reference to the device controller. : Next buffer descriptor to reap from the hardware. : Next BD available for a new packet. : Points to the final BD in the ring. : Number of BD entries currently occupied. : Base pointer to the BD ring. : Physical (DMA) address of bd_ring. : Total number of BDs in the ring.

ep0 has two IUDMA channels (IUDMA_EP0_RXCHAN and IUDMA_EP0_TXCHAN), as it is bidirectional. The "struct usb_ep" associated with ep0 is for TX (IN) only.

Each bulk/intr endpoint has a single IUDMA channel and a single struct usb_ep.

Definition at line 195 of file bcm63xx_udc.c.