mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 15:14:43 +00:00
net: Move driver-model code into its own file
Every other uclass is in its own file. Create a new eth-uclass.c file and move the driver-model code into it, so that networking is consistent. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Simon Glass
Joe Hershberger
parent
8607a6bf75
commit
db9391e165
3 changed files with 553 additions and 543 deletions
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@ -12,7 +12,11 @@ obj-$(CONFIG_CMD_NET) += arp.o
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obj-$(CONFIG_CMD_NET) += bootp.o
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obj-$(CONFIG_CMD_CDP) += cdp.o
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obj-$(CONFIG_CMD_DNS) += dns.o
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ifdef CONFIG_DM_ETH
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obj-$(CONFIG_CMD_NET) += eth-uclass.o
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else
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obj-$(CONFIG_CMD_NET) += eth.o
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endif
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obj-$(CONFIG_CMD_NET) += eth_common.o
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obj-$(CONFIG_CMD_LINK_LOCAL) += link_local.o
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obj-$(CONFIG_CMD_NET) += net.o
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549
net/eth-uclass.c
Normal file
549
net/eth-uclass.c
Normal file
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@ -0,0 +1,549 @@
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/*
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* (C) Copyright 2001-2015
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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* Joe Hershberger, National Instruments
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <environment.h>
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#include <net.h>
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#include <dm/device-internal.h>
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#include <dm/uclass-internal.h>
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#include "eth_internal.h"
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/**
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* struct eth_device_priv - private structure for each Ethernet device
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*
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* @state: The state of the Ethernet MAC driver (defined by enum eth_state_t)
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*/
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struct eth_device_priv {
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enum eth_state_t state;
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};
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/**
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* struct eth_uclass_priv - The structure attached to the uclass itself
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*
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* @current: The Ethernet device that the network functions are using
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*/
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struct eth_uclass_priv {
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struct udevice *current;
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};
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/* eth_errno - This stores the most recent failure code from DM functions */
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static int eth_errno;
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static struct eth_uclass_priv *eth_get_uclass_priv(void)
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{
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struct uclass *uc;
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uclass_get(UCLASS_ETH, &uc);
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assert(uc);
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return uc->priv;
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}
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void eth_set_current_to_next(void)
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{
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struct eth_uclass_priv *uc_priv;
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uc_priv = eth_get_uclass_priv();
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if (uc_priv->current)
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uclass_next_device(&uc_priv->current);
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if (!uc_priv->current)
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uclass_first_device(UCLASS_ETH, &uc_priv->current);
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}
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/*
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* Typically this will simply return the active device.
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* In the case where the most recent active device was unset, this will attempt
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* to return the first device. If that device doesn't exist or fails to probe,
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* this function will return NULL.
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*/
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struct udevice *eth_get_dev(void)
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{
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struct eth_uclass_priv *uc_priv;
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uc_priv = eth_get_uclass_priv();
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if (!uc_priv->current)
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eth_errno = uclass_first_device(UCLASS_ETH,
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&uc_priv->current);
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return uc_priv->current;
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}
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/*
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* Typically this will just store a device pointer.
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* In case it was not probed, we will attempt to do so.
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* dev may be NULL to unset the active device.
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*/
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void eth_set_dev(struct udevice *dev)
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{
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if (dev && !device_active(dev)) {
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eth_errno = device_probe(dev);
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if (eth_errno)
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dev = NULL;
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}
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eth_get_uclass_priv()->current = dev;
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}
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/*
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* Find the udevice that either has the name passed in as devname or has an
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* alias named devname.
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*/
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struct udevice *eth_get_dev_by_name(const char *devname)
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{
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int seq = -1;
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char *endp = NULL;
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const char *startp = NULL;
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struct udevice *it;
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struct uclass *uc;
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int len = strlen("eth");
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/* Must be longer than 3 to be an alias */
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if (!strncmp(devname, "eth", len) && strlen(devname) > len) {
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startp = devname + len;
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seq = simple_strtoul(startp, &endp, 10);
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}
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uclass_get(UCLASS_ETH, &uc);
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uclass_foreach_dev(it, uc) {
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/*
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* We need the seq to be valid, so try to probe it.
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* If the probe fails, the seq will not match since it will be
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* -1 instead of what we are looking for.
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* We don't care about errors from probe here. Either they won't
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* match an alias or it will match a literal name and we'll pick
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* up the error when we try to probe again in eth_set_dev().
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*/
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if (device_probe(it))
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continue;
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/* Check for the name or the sequence number to match */
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if (strcmp(it->name, devname) == 0 ||
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(endp > startp && it->seq == seq))
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return it;
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}
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return NULL;
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}
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unsigned char *eth_get_ethaddr(void)
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{
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struct eth_pdata *pdata;
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if (eth_get_dev()) {
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pdata = eth_get_dev()->platdata;
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return pdata->enetaddr;
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}
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return NULL;
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}
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/* Set active state without calling start on the driver */
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int eth_init_state_only(void)
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{
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struct udevice *current;
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struct eth_device_priv *priv;
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current = eth_get_dev();
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if (!current || !device_active(current))
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return -EINVAL;
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priv = current->uclass_priv;
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priv->state = ETH_STATE_ACTIVE;
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return 0;
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}
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/* Set passive state without calling stop on the driver */
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void eth_halt_state_only(void)
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{
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struct udevice *current;
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struct eth_device_priv *priv;
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current = eth_get_dev();
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if (!current || !device_active(current))
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return;
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priv = current->uclass_priv;
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priv->state = ETH_STATE_PASSIVE;
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}
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int eth_get_dev_index(void)
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{
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if (eth_get_dev())
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return eth_get_dev()->seq;
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return -1;
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}
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static int eth_write_hwaddr(struct udevice *dev)
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{
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struct eth_pdata *pdata = dev->platdata;
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int ret = 0;
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if (!dev || !device_active(dev))
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return -EINVAL;
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/* seq is valid since the device is active */
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if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev->seq)) {
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if (!is_valid_ethaddr(pdata->enetaddr)) {
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printf("\nError: %s address %pM illegal value\n",
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dev->name, pdata->enetaddr);
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return -EINVAL;
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}
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/*
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* Drivers are allowed to decide not to implement this at
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* run-time. E.g. Some devices may use it and some may not.
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*/
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ret = eth_get_ops(dev)->write_hwaddr(dev);
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if (ret == -ENOSYS)
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ret = 0;
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if (ret)
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printf("\nWarning: %s failed to set MAC address\n",
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dev->name);
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}
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return ret;
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}
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static int on_ethaddr(const char *name, const char *value, enum env_op op,
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int flags)
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{
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int index;
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int retval;
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struct udevice *dev;
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/* look for an index after "eth" */
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index = simple_strtoul(name + 3, NULL, 10);
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retval = uclass_find_device_by_seq(UCLASS_ETH, index, false, &dev);
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if (!retval) {
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struct eth_pdata *pdata = dev->platdata;
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switch (op) {
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case env_op_create:
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case env_op_overwrite:
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eth_parse_enetaddr(value, pdata->enetaddr);
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break;
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case env_op_delete:
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memset(pdata->enetaddr, 0, 6);
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}
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}
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return 0;
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}
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U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
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int eth_init(void)
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{
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char *ethact = getenv("ethact");
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char *ethrotate = getenv("ethrotate");
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struct udevice *current = NULL;
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struct udevice *old_current;
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int ret = -ENODEV;
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/*
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* When 'ethrotate' variable is set to 'no' and 'ethact' variable
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* is already set to an ethernet device, we should stick to 'ethact'.
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*/
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if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) {
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if (ethact) {
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current = eth_get_dev_by_name(ethact);
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if (!current)
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return -EINVAL;
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}
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}
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if (!current) {
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current = eth_get_dev();
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if (!current) {
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printf("No ethernet found.\n");
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return -ENODEV;
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}
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}
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old_current = current;
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do {
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if (current) {
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debug("Trying %s\n", current->name);
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if (device_active(current)) {
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ret = eth_get_ops(current)->start(current);
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if (ret >= 0) {
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struct eth_device_priv *priv =
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current->uclass_priv;
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priv->state = ETH_STATE_ACTIVE;
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return 0;
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}
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} else {
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ret = eth_errno;
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}
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debug("FAIL\n");
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} else {
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debug("PROBE FAIL\n");
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}
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/*
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* If ethrotate is enabled, this will change "current",
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* otherwise we will drop out of this while loop immediately
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*/
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eth_try_another(0);
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/* This will ensure the new "current" attempted to probe */
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current = eth_get_dev();
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} while (old_current != current);
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return ret;
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}
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void eth_halt(void)
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{
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struct udevice *current;
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struct eth_device_priv *priv;
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current = eth_get_dev();
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if (!current || !device_active(current))
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return;
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eth_get_ops(current)->stop(current);
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priv = current->uclass_priv;
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priv->state = ETH_STATE_PASSIVE;
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}
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int eth_is_active(struct udevice *dev)
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{
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struct eth_device_priv *priv;
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if (!dev || !device_active(dev))
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return 0;
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priv = dev_get_uclass_priv(dev);
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return priv->state == ETH_STATE_ACTIVE;
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}
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int eth_send(void *packet, int length)
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{
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struct udevice *current;
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int ret;
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current = eth_get_dev();
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if (!current)
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return -ENODEV;
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if (!device_active(current))
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return -EINVAL;
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ret = eth_get_ops(current)->send(current, packet, length);
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if (ret < 0) {
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/* We cannot completely return the error at present */
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debug("%s: send() returned error %d\n", __func__, ret);
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}
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return ret;
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}
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int eth_rx(void)
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{
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struct udevice *current;
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uchar *packet;
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int flags;
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int ret;
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int i;
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current = eth_get_dev();
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if (!current)
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return -ENODEV;
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if (!device_active(current))
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return -EINVAL;
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/* Process up to 32 packets at one time */
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flags = ETH_RECV_CHECK_DEVICE;
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for (i = 0; i < 32; i++) {
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ret = eth_get_ops(current)->recv(current, flags, &packet);
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flags = 0;
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if (ret > 0)
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net_process_received_packet(packet, ret);
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if (ret >= 0 && eth_get_ops(current)->free_pkt)
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eth_get_ops(current)->free_pkt(current, packet, ret);
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if (ret <= 0)
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break;
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}
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if (ret == -EAGAIN)
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ret = 0;
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if (ret < 0) {
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/* We cannot completely return the error at present */
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debug("%s: recv() returned error %d\n", __func__, ret);
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}
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return ret;
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}
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int eth_initialize(void)
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{
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int num_devices = 0;
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struct udevice *dev;
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eth_common_init();
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/*
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* Devices need to write the hwaddr even if not started so that Linux
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* will have access to the hwaddr that u-boot stored for the device.
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* This is accomplished by attempting to probe each device and calling
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* their write_hwaddr() operation.
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*/
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uclass_first_device(UCLASS_ETH, &dev);
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if (!dev) {
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printf("No ethernet found.\n");
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bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
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} else {
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char *ethprime = getenv("ethprime");
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struct udevice *prime_dev = NULL;
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if (ethprime)
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prime_dev = eth_get_dev_by_name(ethprime);
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if (prime_dev) {
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eth_set_dev(prime_dev);
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eth_current_changed();
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} else {
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eth_set_dev(NULL);
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}
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bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
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do {
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if (num_devices)
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printf(", ");
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printf("eth%d: %s", dev->seq, dev->name);
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if (ethprime && dev == prime_dev)
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printf(" [PRIME]");
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eth_write_hwaddr(dev);
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uclass_next_device(&dev);
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num_devices++;
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} while (dev);
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putc('\n');
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}
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return num_devices;
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}
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static int eth_post_bind(struct udevice *dev)
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{
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if (strchr(dev->name, ' ')) {
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printf("\nError: eth device name \"%s\" has a space!\n",
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dev->name);
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return -EINVAL;
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}
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return 0;
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}
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static int eth_pre_unbind(struct udevice *dev)
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{
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/* Don't hang onto a pointer that is going away */
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if (dev == eth_get_uclass_priv()->current)
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eth_set_dev(NULL);
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return 0;
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}
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static int eth_post_probe(struct udevice *dev)
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{
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struct eth_device_priv *priv = dev->uclass_priv;
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struct eth_pdata *pdata = dev->platdata;
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unsigned char env_enetaddr[6];
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#if defined(CONFIG_NEEDS_MANUAL_RELOC)
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struct eth_ops *ops = eth_get_ops(dev);
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static int reloc_done;
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if (!reloc_done) {
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if (ops->start)
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ops->start += gd->reloc_off;
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if (ops->send)
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ops->send += gd->reloc_off;
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if (ops->recv)
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ops->recv += gd->reloc_off;
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if (ops->free_pkt)
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ops->free_pkt += gd->reloc_off;
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if (ops->stop)
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ops->stop += gd->reloc_off;
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#ifdef CONFIG_MCAST_TFTP
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if (ops->mcast)
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ops->mcast += gd->reloc_off;
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#endif
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if (ops->write_hwaddr)
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ops->write_hwaddr += gd->reloc_off;
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if (ops->read_rom_hwaddr)
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ops->read_rom_hwaddr += gd->reloc_off;
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reloc_done++;
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}
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#endif
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priv->state = ETH_STATE_INIT;
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/* Check if the device has a MAC address in ROM */
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if (eth_get_ops(dev)->read_rom_hwaddr)
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eth_get_ops(dev)->read_rom_hwaddr(dev);
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eth_getenv_enetaddr_by_index("eth", dev->seq, env_enetaddr);
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if (!is_zero_ethaddr(env_enetaddr)) {
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if (!is_zero_ethaddr(pdata->enetaddr) &&
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memcmp(pdata->enetaddr, env_enetaddr, 6)) {
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printf("\nWarning: %s MAC addresses don't match:\n",
|
||||
dev->name);
|
||||
printf("Address in SROM is %pM\n",
|
||||
pdata->enetaddr);
|
||||
printf("Address in environment is %pM\n",
|
||||
env_enetaddr);
|
||||
}
|
||||
|
||||
/* Override the ROM MAC address */
|
||||
memcpy(pdata->enetaddr, env_enetaddr, 6);
|
||||
} else if (is_valid_ethaddr(pdata->enetaddr)) {
|
||||
eth_setenv_enetaddr_by_index("eth", dev->seq, pdata->enetaddr);
|
||||
printf("\nWarning: %s using MAC address from ROM\n",
|
||||
dev->name);
|
||||
} else if (is_zero_ethaddr(pdata->enetaddr)) {
|
||||
#ifdef CONFIG_NET_RANDOM_ETHADDR
|
||||
net_random_ethaddr(pdata->enetaddr);
|
||||
printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
|
||||
dev->name, dev->seq, pdata->enetaddr);
|
||||
#else
|
||||
printf("\nError: %s address not set.\n",
|
||||
dev->name);
|
||||
return -EINVAL;
|
||||
#endif
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int eth_pre_remove(struct udevice *dev)
|
||||
{
|
||||
struct eth_pdata *pdata = dev->platdata;
|
||||
|
||||
eth_get_ops(dev)->stop(dev);
|
||||
|
||||
/* clear the MAC address */
|
||||
memset(pdata->enetaddr, 0, 6);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
UCLASS_DRIVER(eth) = {
|
||||
.name = "eth",
|
||||
.id = UCLASS_ETH,
|
||||
.post_bind = eth_post_bind,
|
||||
.pre_unbind = eth_pre_unbind,
|
||||
.post_probe = eth_post_probe,
|
||||
.pre_remove = eth_pre_remove,
|
||||
.priv_auto_alloc_size = sizeof(struct eth_uclass_priv),
|
||||
.per_device_auto_alloc_size = sizeof(struct eth_device_priv),
|
||||
.flags = DM_UC_FLAG_SEQ_ALIAS,
|
||||
};
|
||||
543
net/eth.c
543
net/eth.c
|
|
@ -8,14 +8,10 @@
|
|||
|
||||
#include <common.h>
|
||||
#include <command.h>
|
||||
#include <dm.h>
|
||||
#include <environment.h>
|
||||
#include <net.h>
|
||||
#include <miiphy.h>
|
||||
#include <phy.h>
|
||||
#include <asm/errno.h>
|
||||
#include <dm/device-internal.h>
|
||||
#include <dm/uclass-internal.h>
|
||||
#include "eth_internal.h"
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
|
@ -31,544 +27,6 @@ static int __def_eth_init(bd_t *bis)
|
|||
int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
|
||||
int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
|
||||
|
||||
#ifdef CONFIG_DM_ETH
|
||||
/**
|
||||
* struct eth_device_priv - private structure for each Ethernet device
|
||||
*
|
||||
* @state: The state of the Ethernet MAC driver (defined by enum eth_state_t)
|
||||
*/
|
||||
struct eth_device_priv {
|
||||
enum eth_state_t state;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct eth_uclass_priv - The structure attached to the uclass itself
|
||||
*
|
||||
* @current: The Ethernet device that the network functions are using
|
||||
*/
|
||||
struct eth_uclass_priv {
|
||||
struct udevice *current;
|
||||
};
|
||||
|
||||
/* eth_errno - This stores the most recent failure code from DM functions */
|
||||
static int eth_errno;
|
||||
|
||||
static struct eth_uclass_priv *eth_get_uclass_priv(void)
|
||||
{
|
||||
struct uclass *uc;
|
||||
|
||||
uclass_get(UCLASS_ETH, &uc);
|
||||
assert(uc);
|
||||
return uc->priv;
|
||||
}
|
||||
|
||||
void eth_set_current_to_next(void)
|
||||
{
|
||||
struct eth_uclass_priv *uc_priv;
|
||||
|
||||
uc_priv = eth_get_uclass_priv();
|
||||
if (uc_priv->current)
|
||||
uclass_next_device(&uc_priv->current);
|
||||
if (!uc_priv->current)
|
||||
uclass_first_device(UCLASS_ETH, &uc_priv->current);
|
||||
}
|
||||
|
||||
/*
|
||||
* Typically this will simply return the active device.
|
||||
* In the case where the most recent active device was unset, this will attempt
|
||||
* to return the first device. If that device doesn't exist or fails to probe,
|
||||
* this function will return NULL.
|
||||
*/
|
||||
struct udevice *eth_get_dev(void)
|
||||
{
|
||||
struct eth_uclass_priv *uc_priv;
|
||||
|
||||
uc_priv = eth_get_uclass_priv();
|
||||
if (!uc_priv->current)
|
||||
eth_errno = uclass_first_device(UCLASS_ETH,
|
||||
&uc_priv->current);
|
||||
return uc_priv->current;
|
||||
}
|
||||
|
||||
/*
|
||||
* Typically this will just store a device pointer.
|
||||
* In case it was not probed, we will attempt to do so.
|
||||
* dev may be NULL to unset the active device.
|
||||
*/
|
||||
void eth_set_dev(struct udevice *dev)
|
||||
{
|
||||
if (dev && !device_active(dev)) {
|
||||
eth_errno = device_probe(dev);
|
||||
if (eth_errno)
|
||||
dev = NULL;
|
||||
}
|
||||
|
||||
eth_get_uclass_priv()->current = dev;
|
||||
}
|
||||
|
||||
/*
|
||||
* Find the udevice that either has the name passed in as devname or has an
|
||||
* alias named devname.
|
||||
*/
|
||||
struct udevice *eth_get_dev_by_name(const char *devname)
|
||||
{
|
||||
int seq = -1;
|
||||
char *endp = NULL;
|
||||
const char *startp = NULL;
|
||||
struct udevice *it;
|
||||
struct uclass *uc;
|
||||
int len = strlen("eth");
|
||||
|
||||
/* Must be longer than 3 to be an alias */
|
||||
if (!strncmp(devname, "eth", len) && strlen(devname) > len) {
|
||||
startp = devname + len;
|
||||
seq = simple_strtoul(startp, &endp, 10);
|
||||
}
|
||||
|
||||
uclass_get(UCLASS_ETH, &uc);
|
||||
uclass_foreach_dev(it, uc) {
|
||||
/*
|
||||
* We need the seq to be valid, so try to probe it.
|
||||
* If the probe fails, the seq will not match since it will be
|
||||
* -1 instead of what we are looking for.
|
||||
* We don't care about errors from probe here. Either they won't
|
||||
* match an alias or it will match a literal name and we'll pick
|
||||
* up the error when we try to probe again in eth_set_dev().
|
||||
*/
|
||||
if (device_probe(it))
|
||||
continue;
|
||||
/* Check for the name or the sequence number to match */
|
||||
if (strcmp(it->name, devname) == 0 ||
|
||||
(endp > startp && it->seq == seq))
|
||||
return it;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
unsigned char *eth_get_ethaddr(void)
|
||||
{
|
||||
struct eth_pdata *pdata;
|
||||
|
||||
if (eth_get_dev()) {
|
||||
pdata = eth_get_dev()->platdata;
|
||||
return pdata->enetaddr;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Set active state without calling start on the driver */
|
||||
int eth_init_state_only(void)
|
||||
{
|
||||
struct udevice *current;
|
||||
struct eth_device_priv *priv;
|
||||
|
||||
current = eth_get_dev();
|
||||
if (!current || !device_active(current))
|
||||
return -EINVAL;
|
||||
|
||||
priv = current->uclass_priv;
|
||||
priv->state = ETH_STATE_ACTIVE;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Set passive state without calling stop on the driver */
|
||||
void eth_halt_state_only(void)
|
||||
{
|
||||
struct udevice *current;
|
||||
struct eth_device_priv *priv;
|
||||
|
||||
current = eth_get_dev();
|
||||
if (!current || !device_active(current))
|
||||
return;
|
||||
|
||||
priv = current->uclass_priv;
|
||||
priv->state = ETH_STATE_PASSIVE;
|
||||
}
|
||||
|
||||
int eth_get_dev_index(void)
|
||||
{
|
||||
if (eth_get_dev())
|
||||
return eth_get_dev()->seq;
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int eth_write_hwaddr(struct udevice *dev)
|
||||
{
|
||||
struct eth_pdata *pdata = dev->platdata;
|
||||
int ret = 0;
|
||||
|
||||
if (!dev || !device_active(dev))
|
||||
return -EINVAL;
|
||||
|
||||
/* seq is valid since the device is active */
|
||||
if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev->seq)) {
|
||||
if (!is_valid_ethaddr(pdata->enetaddr)) {
|
||||
printf("\nError: %s address %pM illegal value\n",
|
||||
dev->name, pdata->enetaddr);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Drivers are allowed to decide not to implement this at
|
||||
* run-time. E.g. Some devices may use it and some may not.
|
||||
*/
|
||||
ret = eth_get_ops(dev)->write_hwaddr(dev);
|
||||
if (ret == -ENOSYS)
|
||||
ret = 0;
|
||||
if (ret)
|
||||
printf("\nWarning: %s failed to set MAC address\n",
|
||||
dev->name);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int on_ethaddr(const char *name, const char *value, enum env_op op,
|
||||
int flags)
|
||||
{
|
||||
int index;
|
||||
int retval;
|
||||
struct udevice *dev;
|
||||
|
||||
/* look for an index after "eth" */
|
||||
index = simple_strtoul(name + 3, NULL, 10);
|
||||
|
||||
retval = uclass_find_device_by_seq(UCLASS_ETH, index, false, &dev);
|
||||
if (!retval) {
|
||||
struct eth_pdata *pdata = dev->platdata;
|
||||
switch (op) {
|
||||
case env_op_create:
|
||||
case env_op_overwrite:
|
||||
eth_parse_enetaddr(value, pdata->enetaddr);
|
||||
break;
|
||||
case env_op_delete:
|
||||
memset(pdata->enetaddr, 0, 6);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
|
||||
|
||||
int eth_init(void)
|
||||
{
|
||||
char *ethact = getenv("ethact");
|
||||
char *ethrotate = getenv("ethrotate");
|
||||
struct udevice *current = NULL;
|
||||
struct udevice *old_current;
|
||||
int ret = -ENODEV;
|
||||
|
||||
/*
|
||||
* When 'ethrotate' variable is set to 'no' and 'ethact' variable
|
||||
* is already set to an ethernet device, we should stick to 'ethact'.
|
||||
*/
|
||||
if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) {
|
||||
if (ethact) {
|
||||
current = eth_get_dev_by_name(ethact);
|
||||
if (!current)
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
if (!current) {
|
||||
current = eth_get_dev();
|
||||
if (!current) {
|
||||
printf("No ethernet found.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
|
||||
old_current = current;
|
||||
do {
|
||||
if (current) {
|
||||
debug("Trying %s\n", current->name);
|
||||
|
||||
if (device_active(current)) {
|
||||
ret = eth_get_ops(current)->start(current);
|
||||
if (ret >= 0) {
|
||||
struct eth_device_priv *priv =
|
||||
current->uclass_priv;
|
||||
|
||||
priv->state = ETH_STATE_ACTIVE;
|
||||
return 0;
|
||||
}
|
||||
} else {
|
||||
ret = eth_errno;
|
||||
}
|
||||
|
||||
debug("FAIL\n");
|
||||
} else {
|
||||
debug("PROBE FAIL\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* If ethrotate is enabled, this will change "current",
|
||||
* otherwise we will drop out of this while loop immediately
|
||||
*/
|
||||
eth_try_another(0);
|
||||
/* This will ensure the new "current" attempted to probe */
|
||||
current = eth_get_dev();
|
||||
} while (old_current != current);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void eth_halt(void)
|
||||
{
|
||||
struct udevice *current;
|
||||
struct eth_device_priv *priv;
|
||||
|
||||
current = eth_get_dev();
|
||||
if (!current || !device_active(current))
|
||||
return;
|
||||
|
||||
eth_get_ops(current)->stop(current);
|
||||
priv = current->uclass_priv;
|
||||
priv->state = ETH_STATE_PASSIVE;
|
||||
}
|
||||
|
||||
int eth_is_active(struct udevice *dev)
|
||||
{
|
||||
struct eth_device_priv *priv;
|
||||
|
||||
if (!dev || !device_active(dev))
|
||||
return 0;
|
||||
|
||||
priv = dev_get_uclass_priv(dev);
|
||||
return priv->state == ETH_STATE_ACTIVE;
|
||||
}
|
||||
|
||||
int eth_send(void *packet, int length)
|
||||
{
|
||||
struct udevice *current;
|
||||
int ret;
|
||||
|
||||
current = eth_get_dev();
|
||||
if (!current)
|
||||
return -ENODEV;
|
||||
|
||||
if (!device_active(current))
|
||||
return -EINVAL;
|
||||
|
||||
ret = eth_get_ops(current)->send(current, packet, length);
|
||||
if (ret < 0) {
|
||||
/* We cannot completely return the error at present */
|
||||
debug("%s: send() returned error %d\n", __func__, ret);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int eth_rx(void)
|
||||
{
|
||||
struct udevice *current;
|
||||
uchar *packet;
|
||||
int flags;
|
||||
int ret;
|
||||
int i;
|
||||
|
||||
current = eth_get_dev();
|
||||
if (!current)
|
||||
return -ENODEV;
|
||||
|
||||
if (!device_active(current))
|
||||
return -EINVAL;
|
||||
|
||||
/* Process up to 32 packets at one time */
|
||||
flags = ETH_RECV_CHECK_DEVICE;
|
||||
for (i = 0; i < 32; i++) {
|
||||
ret = eth_get_ops(current)->recv(current, flags, &packet);
|
||||
flags = 0;
|
||||
if (ret > 0)
|
||||
net_process_received_packet(packet, ret);
|
||||
if (ret >= 0 && eth_get_ops(current)->free_pkt)
|
||||
eth_get_ops(current)->free_pkt(current, packet, ret);
|
||||
if (ret <= 0)
|
||||
break;
|
||||
}
|
||||
if (ret == -EAGAIN)
|
||||
ret = 0;
|
||||
if (ret < 0) {
|
||||
/* We cannot completely return the error at present */
|
||||
debug("%s: recv() returned error %d\n", __func__, ret);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int eth_initialize(void)
|
||||
{
|
||||
int num_devices = 0;
|
||||
struct udevice *dev;
|
||||
|
||||
eth_common_init();
|
||||
|
||||
/*
|
||||
* Devices need to write the hwaddr even if not started so that Linux
|
||||
* will have access to the hwaddr that u-boot stored for the device.
|
||||
* This is accomplished by attempting to probe each device and calling
|
||||
* their write_hwaddr() operation.
|
||||
*/
|
||||
uclass_first_device(UCLASS_ETH, &dev);
|
||||
if (!dev) {
|
||||
printf("No ethernet found.\n");
|
||||
bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
|
||||
} else {
|
||||
char *ethprime = getenv("ethprime");
|
||||
struct udevice *prime_dev = NULL;
|
||||
|
||||
if (ethprime)
|
||||
prime_dev = eth_get_dev_by_name(ethprime);
|
||||
if (prime_dev) {
|
||||
eth_set_dev(prime_dev);
|
||||
eth_current_changed();
|
||||
} else {
|
||||
eth_set_dev(NULL);
|
||||
}
|
||||
|
||||
bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
|
||||
do {
|
||||
if (num_devices)
|
||||
printf(", ");
|
||||
|
||||
printf("eth%d: %s", dev->seq, dev->name);
|
||||
|
||||
if (ethprime && dev == prime_dev)
|
||||
printf(" [PRIME]");
|
||||
|
||||
eth_write_hwaddr(dev);
|
||||
|
||||
uclass_next_device(&dev);
|
||||
num_devices++;
|
||||
} while (dev);
|
||||
|
||||
putc('\n');
|
||||
}
|
||||
|
||||
return num_devices;
|
||||
}
|
||||
|
||||
static int eth_post_bind(struct udevice *dev)
|
||||
{
|
||||
if (strchr(dev->name, ' ')) {
|
||||
printf("\nError: eth device name \"%s\" has a space!\n",
|
||||
dev->name);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int eth_pre_unbind(struct udevice *dev)
|
||||
{
|
||||
/* Don't hang onto a pointer that is going away */
|
||||
if (dev == eth_get_uclass_priv()->current)
|
||||
eth_set_dev(NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int eth_post_probe(struct udevice *dev)
|
||||
{
|
||||
struct eth_device_priv *priv = dev->uclass_priv;
|
||||
struct eth_pdata *pdata = dev->platdata;
|
||||
unsigned char env_enetaddr[6];
|
||||
|
||||
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
|
||||
struct eth_ops *ops = eth_get_ops(dev);
|
||||
static int reloc_done;
|
||||
|
||||
if (!reloc_done) {
|
||||
if (ops->start)
|
||||
ops->start += gd->reloc_off;
|
||||
if (ops->send)
|
||||
ops->send += gd->reloc_off;
|
||||
if (ops->recv)
|
||||
ops->recv += gd->reloc_off;
|
||||
if (ops->free_pkt)
|
||||
ops->free_pkt += gd->reloc_off;
|
||||
if (ops->stop)
|
||||
ops->stop += gd->reloc_off;
|
||||
#ifdef CONFIG_MCAST_TFTP
|
||||
if (ops->mcast)
|
||||
ops->mcast += gd->reloc_off;
|
||||
#endif
|
||||
if (ops->write_hwaddr)
|
||||
ops->write_hwaddr += gd->reloc_off;
|
||||
if (ops->read_rom_hwaddr)
|
||||
ops->read_rom_hwaddr += gd->reloc_off;
|
||||
|
||||
reloc_done++;
|
||||
}
|
||||
#endif
|
||||
|
||||
priv->state = ETH_STATE_INIT;
|
||||
|
||||
/* Check if the device has a MAC address in ROM */
|
||||
if (eth_get_ops(dev)->read_rom_hwaddr)
|
||||
eth_get_ops(dev)->read_rom_hwaddr(dev);
|
||||
|
||||
eth_getenv_enetaddr_by_index("eth", dev->seq, env_enetaddr);
|
||||
if (!is_zero_ethaddr(env_enetaddr)) {
|
||||
if (!is_zero_ethaddr(pdata->enetaddr) &&
|
||||
memcmp(pdata->enetaddr, env_enetaddr, 6)) {
|
||||
printf("\nWarning: %s MAC addresses don't match:\n",
|
||||
dev->name);
|
||||
printf("Address in SROM is %pM\n",
|
||||
pdata->enetaddr);
|
||||
printf("Address in environment is %pM\n",
|
||||
env_enetaddr);
|
||||
}
|
||||
|
||||
/* Override the ROM MAC address */
|
||||
memcpy(pdata->enetaddr, env_enetaddr, 6);
|
||||
} else if (is_valid_ethaddr(pdata->enetaddr)) {
|
||||
eth_setenv_enetaddr_by_index("eth", dev->seq, pdata->enetaddr);
|
||||
printf("\nWarning: %s using MAC address from ROM\n",
|
||||
dev->name);
|
||||
} else if (is_zero_ethaddr(pdata->enetaddr)) {
|
||||
#ifdef CONFIG_NET_RANDOM_ETHADDR
|
||||
net_random_ethaddr(pdata->enetaddr);
|
||||
printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
|
||||
dev->name, dev->seq, pdata->enetaddr);
|
||||
#else
|
||||
printf("\nError: %s address not set.\n",
|
||||
dev->name);
|
||||
return -EINVAL;
|
||||
#endif
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int eth_pre_remove(struct udevice *dev)
|
||||
{
|
||||
struct eth_pdata *pdata = dev->platdata;
|
||||
|
||||
eth_get_ops(dev)->stop(dev);
|
||||
|
||||
/* clear the MAC address */
|
||||
memset(pdata->enetaddr, 0, 6);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
UCLASS_DRIVER(eth) = {
|
||||
.name = "eth",
|
||||
.id = UCLASS_ETH,
|
||||
.post_bind = eth_post_bind,
|
||||
.pre_unbind = eth_pre_unbind,
|
||||
.post_probe = eth_post_probe,
|
||||
.pre_remove = eth_pre_remove,
|
||||
.priv_auto_alloc_size = sizeof(struct eth_uclass_priv),
|
||||
.per_device_auto_alloc_size = sizeof(struct eth_device_priv),
|
||||
.flags = DM_UC_FLAG_SEQ_ALIAS,
|
||||
};
|
||||
#endif /* #ifdef CONFIG_DM_ETH */
|
||||
|
||||
#ifndef CONFIG_DM_ETH
|
||||
|
||||
#ifdef CONFIG_API
|
||||
static struct {
|
||||
uchar data[PKTSIZE];
|
||||
|
|
@ -935,7 +393,6 @@ int eth_rx(void)
|
|||
|
||||
return eth_current->recv(eth_current);
|
||||
}
|
||||
#endif /* ifndef CONFIG_DM_ETH */
|
||||
|
||||
#ifdef CONFIG_API
|
||||
static void eth_save_packet(void *packet, int length)
|
||||
|
|
|
|||
Loading…
Reference in a new issue