b8daa6e9ee
As DM_ETH is required for all network drivers, it's now safe to remove the non-DM_ETH support code fro usb_ether itself. Signed-off-by: Tom Rini <trini@konsulko.com>
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
*/
|
|
|
|
#ifndef __USB_ETHER_H__
|
|
#define __USB_ETHER_H__
|
|
|
|
#include <net.h>
|
|
|
|
/* TODO(sjg@chromium.org): Remove @pusb_dev now that all boards use CONFIG_DM_ETH */
|
|
struct ueth_data {
|
|
/* eth info */
|
|
uint8_t *rxbuf;
|
|
int rxsize;
|
|
int rxlen; /* Total bytes available in rxbuf */
|
|
int rxptr; /* Current position in rxbuf */
|
|
int phy_id; /* mii phy id */
|
|
|
|
/* usb info */
|
|
struct usb_device *pusb_dev; /* this usb_device */
|
|
unsigned char ifnum; /* interface number */
|
|
unsigned char ep_in; /* in endpoint */
|
|
unsigned char ep_out; /* out ....... */
|
|
unsigned char ep_int; /* interrupt . */
|
|
unsigned char subclass; /* as in overview */
|
|
unsigned char protocol; /* .............. */
|
|
unsigned char irqinterval; /* Intervall for IRQ Pipe */
|
|
};
|
|
|
|
/**
|
|
* usb_ether_register() - register a new USB ethernet device
|
|
*
|
|
* This selects the correct USB interface and figures out the endpoints to use.
|
|
*
|
|
* @dev: USB device
|
|
* @ss: Place to put USB ethernet data
|
|
* @rxsize: Maximum size to allocate for the receive buffer
|
|
* Return: 0 if OK, -ve on error
|
|
*/
|
|
int usb_ether_register(struct udevice *dev, struct ueth_data *ueth, int rxsize);
|
|
|
|
/**
|
|
* usb_ether_deregister() - deregister a USB ethernet device
|
|
*
|
|
* @ueth: USB Ethernet device
|
|
* Return: 0
|
|
*/
|
|
int usb_ether_deregister(struct ueth_data *ueth);
|
|
|
|
/**
|
|
* usb_ether_receive() - recieve a packet from the bulk in endpoint
|
|
*
|
|
* The packet is stored in the internal buffer ready for processing.
|
|
*
|
|
* @ueth: USB Ethernet device
|
|
* @rxsize: Maximum size to receive
|
|
* Return: 0 if a packet was received, -EAGAIN if not, -ENOSPC if @rxsize is
|
|
* larger than the size passed ot usb_ether_register(), other -ve on error
|
|
*/
|
|
int usb_ether_receive(struct ueth_data *ueth, int rxsize);
|
|
|
|
/**
|
|
* usb_ether_get_rx_bytes() - obtain bytes from the internal packet buffer
|
|
*
|
|
* This should be called repeatedly to obtain packet data until it returns 0.
|
|
* After each packet is processed, call usb_ether_advance_rxbuf() to move to
|
|
* the next one.
|
|
*
|
|
* @ueth: USB Ethernet device
|
|
* @ptrp: Returns a pointer to the start of the next packet if there is
|
|
* one available
|
|
* Return: number of bytes available, or 0 if none
|
|
*/
|
|
int usb_ether_get_rx_bytes(struct ueth_data *ueth, uint8_t **ptrp);
|
|
|
|
/**
|
|
* usb_ether_advance_rxbuf() - Advance to the next packet in the internal buffer
|
|
*
|
|
* After processing the data returned by usb_ether_get_rx_bytes(), call this
|
|
* function to move to the next packet. You must specify the number of bytes
|
|
* you have processed in @num_bytes.
|
|
*
|
|
* @ueth: USB Ethernet device
|
|
* @num_bytes: Number of bytes to skip, or -1 to skip all bytes
|
|
*/
|
|
void usb_ether_advance_rxbuf(struct ueth_data *ueth, int num_bytes);
|
|
|
|
#endif /* __USB_ETHER_H__ */
|