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- /*
- * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #ifndef __USB_ETHER_H__
- #define __USB_ETHER_H__
- #include <net.h>
- /*
- * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
- * and FCS/CRC (frame check sequence).
- */
- #define ETH_ALEN 6 /* Octets in one ethernet addr */
- #define ETH_HLEN 14 /* Total octets in header. */
- #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
- #define ETH_DATA_LEN 1500 /* Max. octets in payload */
- #define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
- /* TODO(sjg@chromium.org): Remove @pusb_dev when all boards use CONFIG_DM_ETH */
- struct ueth_data {
- /* eth info */
- #ifdef CONFIG_DM_ETH
- uint8_t *rxbuf;
- int rxsize;
- int rxlen; /* Total bytes available in rxbuf */
- int rxptr; /* Current position in rxbuf */
- #else
- struct eth_device eth_dev; /* used with eth_register */
- /* driver private */
- void *dev_priv;
- #endif
- 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 */
- };
- #ifdef CONFIG_DM_ETH
- /**
- * 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);
- #else
- /*
- * Function definitions for each USB ethernet driver go here
- * (declaration is unconditional, compilation is conditional)
- */
- void asix_eth_before_probe(void);
- int asix_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss);
- int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth);
- void ax88179_eth_before_probe(void);
- int ax88179_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss);
- int ax88179_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth);
- void mcs7830_eth_before_probe(void);
- int mcs7830_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss);
- int mcs7830_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth);
- void smsc95xx_eth_before_probe(void);
- int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss);
- int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth);
- void r8152_eth_before_probe(void);
- int r8152_eth_probe(struct usb_device *dev, unsigned int ifnum,
- struct ueth_data *ss);
- int r8152_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
- struct eth_device *eth);
- #endif
- #endif /* __USB_ETHER_H__ */
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