X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fusb%2Feth%2Fusb_ether.c;h=36734e2e51b3f82b1e3daafbc443c73505284e99;hb=68fc449033732e7eb2aa022f9ef1b292f6871b8c;hp=c2342ed97fcc28566e627f8e0edc4d0ec7a469de;hpb=89d48367edbc878f86db3008a4107331ef07f578;p=oweals%2Fu-boot.git diff --git a/drivers/usb/eth/usb_ether.c b/drivers/usb/eth/usb_ether.c index c2342ed97f..36734e2e51 100644 --- a/drivers/usb/eth/usb_ether.c +++ b/drivers/usb/eth/usb_ether.c @@ -1,29 +1,143 @@ /* * Copyright (c) 2011 The Chromium OS Authors. - * See file CREDITS for list of people who contributed to this - * project. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include +#include +#include +#include #include +#include #include "usb_ether.h" +#ifdef CONFIG_DM_ETH + +#define USB_BULK_RECV_TIMEOUT 500 + +int usb_ether_register(struct udevice *dev, struct ueth_data *ueth, int rxsize) +{ + struct usb_device *udev = dev_get_parent_priv(dev); + struct usb_interface_descriptor *iface_desc; + bool ep_in_found = false, ep_out_found = false; + struct usb_interface *iface; + const int ifnum = 0; /* Always use interface 0 */ + int ret, i; + + iface = &udev->config.if_desc[ifnum]; + iface_desc = &udev->config.if_desc[ifnum].desc; + + /* Initialize the ueth_data structure with some useful info */ + ueth->ifnum = ifnum; + ueth->subclass = iface_desc->bInterfaceSubClass; + ueth->protocol = iface_desc->bInterfaceProtocol; + + /* + * We are expecting a minimum of 3 endpoints - in, out (bulk), and int. + * We will ignore any others. + */ + for (i = 0; i < iface_desc->bNumEndpoints; i++) { + int ep_addr = iface->ep_desc[i].bEndpointAddress; + + /* is it an BULK endpoint? */ + if ((iface->ep_desc[i].bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { + if (ep_addr & USB_DIR_IN && !ep_in_found) { + ueth->ep_in = ep_addr & + USB_ENDPOINT_NUMBER_MASK; + ep_in_found = true; + } else if (!(ep_addr & USB_DIR_IN) && !ep_out_found) { + ueth->ep_out = ep_addr & + USB_ENDPOINT_NUMBER_MASK; + ep_out_found = true; + } + } + + /* is it an interrupt endpoint? */ + if ((iface->ep_desc[i].bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) { + ueth->ep_int = iface->ep_desc[i].bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + ueth->irqinterval = iface->ep_desc[i].bInterval; + } + } + debug("Endpoints In %d Out %d Int %d\n", ueth->ep_in, ueth->ep_out, + ueth->ep_int); + + /* Do some basic sanity checks, and bail if we find a problem */ + if (!ueth->ep_in || !ueth->ep_out || !ueth->ep_int) { + debug("%s: %s: Cannot find endpoints\n", __func__, dev->name); + return -ENXIO; + } + + ueth->rxsize = rxsize; + ueth->rxbuf = memalign(ARCH_DMA_MINALIGN, rxsize); + if (!ueth->rxbuf) + return -ENOMEM; + + ret = usb_set_interface(udev, iface_desc->bInterfaceNumber, ifnum); + if (ret) { + debug("%s: %s: Cannot set interface: %d\n", __func__, dev->name, + ret); + return ret; + } + ueth->pusb_dev = udev; + + return 0; +} + +int usb_ether_deregister(struct ueth_data *ueth) +{ + return 0; +} + +int usb_ether_receive(struct ueth_data *ueth, int rxsize) +{ + int actual_len; + int ret; + + if (rxsize > ueth->rxsize) + return -EINVAL; + ret = usb_bulk_msg(ueth->pusb_dev, + usb_rcvbulkpipe(ueth->pusb_dev, ueth->ep_in), + ueth->rxbuf, rxsize, &actual_len, + USB_BULK_RECV_TIMEOUT); + debug("Rx: len = %u, actual = %u, err = %d\n", rxsize, actual_len, ret); + if (ret) { + printf("Rx: failed to receive: %d\n", ret); + return ret; + } + if (actual_len > rxsize) { + debug("Rx: received too many bytes %d\n", actual_len); + return -ENOSPC; + } + ueth->rxlen = actual_len; + ueth->rxptr = 0; + + return actual_len ? 0 : -EAGAIN; +} + +void usb_ether_advance_rxbuf(struct ueth_data *ueth, int num_bytes) +{ + ueth->rxptr += num_bytes; + if (num_bytes < 0 || ueth->rxptr >= ueth->rxlen) + ueth->rxlen = 0; +} + +int usb_ether_get_rx_bytes(struct ueth_data *ueth, uint8_t **ptrp) +{ + if (!ueth->rxlen) + return 0; + + *ptrp = &ueth->rxbuf[ueth->rxptr]; + + return ueth->rxlen - ueth->rxptr; +} + +#else + typedef void (*usb_eth_before_probe)(void); typedef int (*usb_eth_probe)(struct usb_device *dev, unsigned int ifnum, struct ueth_data *ss); @@ -38,6 +152,41 @@ struct usb_eth_prob_dev { /* driver functions go here, each bracketed by #ifdef CONFIG_USB_ETHER_xxx */ static const struct usb_eth_prob_dev prob_dev[] = { +#ifdef CONFIG_USB_ETHER_ASIX + { + .before_probe = asix_eth_before_probe, + .probe = asix_eth_probe, + .get_info = asix_eth_get_info, + }, +#endif +#ifdef CONFIG_USB_ETHER_ASIX88179 + { + .before_probe = ax88179_eth_before_probe, + .probe = ax88179_eth_probe, + .get_info = ax88179_eth_get_info, + }, +#endif +#ifdef CONFIG_USB_ETHER_MCS7830 + { + .before_probe = mcs7830_eth_before_probe, + .probe = mcs7830_eth_probe, + .get_info = mcs7830_eth_get_info, + }, +#endif +#ifdef CONFIG_USB_ETHER_SMSC95XX + { + .before_probe = smsc95xx_eth_before_probe, + .probe = smsc95xx_eth_probe, + .get_info = smsc95xx_eth_get_info, + }, +#endif +#ifdef CONFIG_USB_ETHER_RTL8152 + { + .before_probe = r8152_eth_before_probe, + .probe = r8152_eth_probe, + .get_info = r8152_eth_get_info, + }, +#endif { }, /* END */ }; @@ -66,6 +215,7 @@ int is_eth_dev_on_usb_host(void) */ static void probe_valid_drivers(struct usb_device *dev) { + struct eth_device *eth; int j; for (j = 0; prob_dev[j].probe && prob_dev[j].get_info; j++) { @@ -74,9 +224,10 @@ static void probe_valid_drivers(struct usb_device *dev) /* * ok, it is a supported eth device. Get info and fill it in */ + eth = &usb_eth[usb_max_eth_dev].eth_dev; if (prob_dev[j].get_info(dev, &usb_eth[usb_max_eth_dev], - &usb_eth[usb_max_eth_dev].eth_dev)) { + eth)) { /* found proper driver */ /* register with networking stack */ usb_max_eth_dev++; @@ -86,7 +237,10 @@ static void probe_valid_drivers(struct usb_device *dev) * call since eth_current_changed (internally called) * relies on it */ - eth_register(&usb_eth[usb_max_eth_dev - 1].eth_dev); + eth_register(eth); + if (eth_write_hwaddr(eth, "usbeth", + usb_max_eth_dev - 1)) + puts("Warning: failed to set MAC address\n"); break; } } @@ -100,16 +254,17 @@ static void probe_valid_drivers(struct usb_device *dev) int usb_host_eth_scan(int mode) { int i, old_async; - struct usb_device *dev; - if (mode == 1) - printf(" scanning bus for ethernet devices... "); + printf(" scanning usb for ethernet devices... "); old_async = usb_disable_asynch(1); /* asynch transfer not allowed */ - for (i = 0; i < USB_MAX_ETH_DEV; i++) - memset(&usb_eth[i], 0, sizeof(usb_eth[i])); + /* unregister a previously detected device */ + for (i = 0; i < usb_max_eth_dev; i++) + eth_unregister(&usb_eth[i].eth_dev); + + memset(usb_eth, 0, sizeof(usb_eth)); for (i = 0; prob_dev[i].probe; i++) { if (prob_dev[i].before_probe) @@ -117,27 +272,63 @@ int usb_host_eth_scan(int mode) } usb_max_eth_dev = 0; +#ifdef CONFIG_DM_USB + /* + * TODO: We should add U_BOOT_USB_DEVICE() declarations to each USB + * Ethernet driver and then most of this file can be removed. + */ + struct udevice *bus; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_USB, &uc); + if (ret) + return ret; + uclass_foreach_dev(bus, uc) { + for (i = 0; i < USB_MAX_DEVICE; i++) { + struct usb_device *dev; + + dev = usb_get_dev_index(bus, i); /* get device */ + debug("i=%d, %s\n", i, dev ? dev->dev->name : "(done)"); + if (!dev) + break; /* no more devices available */ + + /* + * find valid usb_ether driver for this device, + * if any + */ + probe_valid_drivers(dev); + + /* check limit */ + if (usb_max_eth_dev == USB_MAX_ETH_DEV) + break; + } /* for */ + } +#else for (i = 0; i < USB_MAX_DEVICE; i++) { + struct usb_device *dev; + dev = usb_get_dev_index(i); /* get device */ debug("i=%d\n", i); - if (dev == NULL) - break; /* no more devices avaiable */ + if (!dev) + break; /* no more devices available */ /* find valid usb_ether driver for this device, if any */ probe_valid_drivers(dev); /* check limit */ - if (usb_max_eth_dev == USB_MAX_ETH_DEV) { - printf("max USB Ethernet Device reached: %d stopping\n", - usb_max_eth_dev); + if (usb_max_eth_dev == USB_MAX_ETH_DEV) break; - } } /* for */ - +#endif + if (usb_max_eth_dev == USB_MAX_ETH_DEV) { + printf("max USB Ethernet Device reached: %d stopping\n", + usb_max_eth_dev); + } usb_disable_asynch(old_async); /* restore asynch value */ printf("%d Ethernet Device(s) found\n", usb_max_eth_dev); if (usb_max_eth_dev > 0) return 0; return -1; } - +#endif