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![Ben Warren](/assets/img/avatar_default.png)
Commit 6e37b1a3a25004d3df5867de49fff6b3fc9c4f04 modifies several net calls to take a (const char *) parameter instead of (char *), but in some cases the modified functions call other functions taking (char *). The end result is warnings about discarding the const qualifier. This patch fixes these other function signatures. Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
538 lines
11 KiB
C
538 lines
11 KiB
C
/*
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* (C) Copyright 2001-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <net.h>
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#include <miiphy.h>
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void eth_parse_enetaddr(const char *addr, uchar *enetaddr)
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{
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char *end;
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int i;
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for (i = 0; i < 6; ++i) {
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enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
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if (addr)
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addr = (*end) ? end + 1 : end;
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}
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}
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int eth_getenv_enetaddr(char *name, uchar *enetaddr)
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{
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eth_parse_enetaddr(getenv(name), enetaddr);
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return is_valid_ether_addr(enetaddr);
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}
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int eth_setenv_enetaddr(char *name, const uchar *enetaddr)
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{
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char buf[20];
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sprintf(buf, "%pM", enetaddr);
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return setenv(name, buf);
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}
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int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr)
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{
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char enetvar[32];
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sprintf(enetvar, index ? "eth%daddr" : "ethaddr", index);
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return eth_getenv_enetaddr(enetvar, enetaddr);
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}
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#ifdef CONFIG_NET_MULTI
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static int eth_mac_skip(int index)
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{
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char enetvar[15];
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char *skip_state;
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sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
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return ((skip_state = getenv(enetvar)) != NULL);
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}
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/*
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* CPU and board-specific Ethernet initializations. Aliased function
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* signals caller to move on
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*/
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static int __def_eth_init(bd_t *bis)
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{
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return -1;
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}
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int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
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int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
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extern int mv6436x_eth_initialize(bd_t *);
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extern int mv6446x_eth_initialize(bd_t *);
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#ifdef CONFIG_API
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extern void (*push_packet)(volatile void *, int);
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static struct {
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uchar data[PKTSIZE];
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int length;
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} eth_rcv_bufs[PKTBUFSRX];
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static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
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#endif
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static struct eth_device *eth_devices, *eth_current;
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struct eth_device *eth_get_dev(void)
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{
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return eth_current;
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}
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struct eth_device *eth_get_dev_by_name(const char *devname)
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{
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struct eth_device *dev, *target_dev;
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if (!eth_devices)
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return NULL;
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dev = eth_devices;
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target_dev = NULL;
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do {
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if (strcmp(devname, dev->name) == 0) {
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target_dev = dev;
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break;
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}
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dev = dev->next;
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} while (dev != eth_devices);
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return target_dev;
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}
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struct eth_device *eth_get_dev_by_index(int index)
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{
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struct eth_device *dev, *target_dev;
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int idx = 0;
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if (!eth_devices)
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return NULL;
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dev = eth_devices;
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target_dev = NULL;
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do {
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if (idx == index) {
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target_dev = dev;
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break;
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}
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dev = dev->next;
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idx++;
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} while (dev != eth_devices);
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return target_dev;
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}
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int eth_get_dev_index (void)
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{
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struct eth_device *dev;
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int num = 0;
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if (!eth_devices) {
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return (-1);
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}
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for (dev = eth_devices; dev; dev = dev->next) {
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if (dev == eth_current)
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break;
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++num;
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}
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if (dev) {
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return (num);
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}
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return (0);
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}
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int eth_register(struct eth_device* dev)
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{
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struct eth_device *d;
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if (!eth_devices) {
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eth_current = eth_devices = dev;
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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{
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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}
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#endif
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} else {
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for (d=eth_devices; d->next!=eth_devices; d=d->next)
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;
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d->next = dev;
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}
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dev->state = ETH_STATE_INIT;
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dev->next = eth_devices;
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return 0;
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}
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int eth_initialize(bd_t *bis)
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{
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unsigned char env_enetaddr[6];
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int eth_number = 0;
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eth_devices = NULL;
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eth_current = NULL;
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show_boot_progress (64);
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#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
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miiphy_init();
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#endif
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/* Try board-specific initialization first. If it fails or isn't
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* present, try the cpu-specific initialization */
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if (board_eth_init(bis) < 0)
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cpu_eth_init(bis);
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#if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
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mv6436x_eth_initialize(bis);
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#endif
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#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
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mv6446x_eth_initialize(bis);
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#endif
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if (!eth_devices) {
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puts ("No ethernet found.\n");
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show_boot_progress (-64);
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} else {
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struct eth_device *dev = eth_devices;
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char *ethprime = getenv ("ethprime");
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show_boot_progress (65);
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do {
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if (eth_number)
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puts (", ");
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printf("%s", dev->name);
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if (ethprime && strcmp (dev->name, ethprime) == 0) {
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eth_current = dev;
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puts (" [PRIME]");
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}
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if (strchr(dev->name, ' '))
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puts("\nWarning: eth device name has a space!\n");
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eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);
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if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
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if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
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memcmp(dev->enetaddr, env_enetaddr, 6))
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{
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printf ("\nWarning: %s MAC addresses don't match:\n",
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dev->name);
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printf ("Address in SROM is %pM\n",
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dev->enetaddr);
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printf ("Address in environment is %pM\n",
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env_enetaddr);
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}
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memcpy(dev->enetaddr, env_enetaddr, 6);
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}
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if (dev->write_hwaddr &&
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!eth_mac_skip(eth_number) &&
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is_valid_ether_addr(dev->enetaddr)) {
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dev->write_hwaddr(dev);
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}
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eth_number++;
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dev = dev->next;
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} while(dev != eth_devices);
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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if (eth_current) {
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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} else
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setenv("ethact", NULL);
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#endif
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putc ('\n');
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}
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return eth_number;
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}
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#ifdef CONFIG_MCAST_TFTP
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/* Multicast.
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* mcast_addr: multicast ipaddr from which multicast Mac is made
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* join: 1=join, 0=leave.
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*/
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int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
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{
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u8 mcast_mac[6];
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if (!eth_current || !eth_current->mcast)
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return -1;
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mcast_mac[5] = htonl(mcast_ip) & 0xff;
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mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
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mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
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mcast_mac[2] = 0x5e;
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mcast_mac[1] = 0x0;
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mcast_mac[0] = 0x1;
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return eth_current->mcast(eth_current, mcast_mac, join);
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}
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/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
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* and this is the ethernet-crc method needed for TSEC -- and perhaps
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* some other adapter -- hash tables
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*/
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#define CRCPOLY_LE 0xedb88320
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u32 ether_crc (size_t len, unsigned char const *p)
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{
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int i;
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u32 crc;
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crc = ~0;
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while (len--) {
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crc ^= *p++;
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for (i = 0; i < 8; i++)
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crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
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}
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/* an reverse the bits, cuz of way they arrive -- last-first */
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crc = (crc >> 16) | (crc << 16);
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crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
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crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
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crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
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crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
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return crc;
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}
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#endif
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int eth_init(bd_t *bis)
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{
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int eth_number;
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struct eth_device *old_current, *dev;
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if (!eth_current) {
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puts ("No ethernet found.\n");
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return -1;
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}
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/* Sync environment with network devices */
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eth_number = 0;
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dev = eth_devices;
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do {
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uchar env_enetaddr[6];
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if (eth_getenv_enetaddr_by_index(eth_number, env_enetaddr))
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memcpy(dev->enetaddr, env_enetaddr, 6);
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++eth_number;
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dev = dev->next;
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} while (dev != eth_devices);
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old_current = eth_current;
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do {
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debug("Trying %s\n", eth_current->name);
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if (eth_current->init(eth_current,bis) >= 0) {
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eth_current->state = ETH_STATE_ACTIVE;
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return 0;
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}
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debug("FAIL\n");
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eth_try_another(0);
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} while (old_current != eth_current);
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return -1;
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}
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void eth_halt(void)
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{
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if (!eth_current)
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return;
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eth_current->halt(eth_current);
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eth_current->state = ETH_STATE_PASSIVE;
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}
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int eth_send(volatile void *packet, int length)
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{
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if (!eth_current)
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return -1;
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return eth_current->send(eth_current, packet, length);
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}
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int eth_rx(void)
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{
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if (!eth_current)
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return -1;
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return eth_current->recv(eth_current);
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}
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#ifdef CONFIG_API
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static void eth_save_packet(volatile void *packet, int length)
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{
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volatile char *p = packet;
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int i;
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if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
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return;
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if (PKTSIZE < length)
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return;
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for (i = 0; i < length; i++)
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eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
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eth_rcv_bufs[eth_rcv_last].length = length;
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eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
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}
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int eth_receive(volatile void *packet, int length)
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{
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volatile char *p = packet;
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void *pp = push_packet;
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int i;
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if (eth_rcv_current == eth_rcv_last) {
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push_packet = eth_save_packet;
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eth_rx();
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push_packet = pp;
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if (eth_rcv_current == eth_rcv_last)
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return -1;
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}
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if (length < eth_rcv_bufs[eth_rcv_current].length)
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return -1;
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length = eth_rcv_bufs[eth_rcv_current].length;
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for (i = 0; i < length; i++)
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p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
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eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
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return length;
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}
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#endif /* CONFIG_API */
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void eth_try_another(int first_restart)
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{
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static struct eth_device *first_failed = NULL;
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char *ethrotate;
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/*
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* Do not rotate between network interfaces when
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* 'ethrotate' variable is set to 'no'.
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*/
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if (((ethrotate = getenv ("ethrotate")) != NULL) &&
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(strcmp(ethrotate, "no") == 0))
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return;
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if (!eth_current)
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return;
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if (first_restart) {
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first_failed = eth_current;
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}
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eth_current = eth_current->next;
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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{
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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}
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#endif
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if (first_failed == eth_current) {
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NetRestartWrap = 1;
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}
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}
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#ifdef CONFIG_NET_MULTI
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void eth_set_current(void)
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{
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static char *act = NULL;
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static int env_changed_id = 0;
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struct eth_device* old_current;
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int env_id;
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if (!eth_current) /* XXX no current */
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return;
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env_id = get_env_id();
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if ((act == NULL) || (env_changed_id != env_id)) {
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act = getenv("ethact");
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env_changed_id = env_id;
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}
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if (act != NULL) {
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old_current = eth_current;
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do {
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if (strcmp(eth_current->name, act) == 0)
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return;
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eth_current = eth_current->next;
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} while (old_current != eth_current);
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}
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setenv("ethact", eth_current->name);
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}
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#endif
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char *eth_get_name (void)
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{
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return (eth_current ? eth_current->name : "unknown");
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}
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#else /* !CONFIG_NET_MULTI */
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#warning Ethernet driver is deprecated. Please update to use CONFIG_NET_MULTI
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extern int at91rm9200_miiphy_initialize(bd_t *bis);
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extern int mcf52x2_miiphy_initialize(bd_t *bis);
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extern int ns7520_miiphy_initialize(bd_t *bis);
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int eth_initialize(bd_t *bis)
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{
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#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
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miiphy_init();
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#endif
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#if defined(CONFIG_AT91RM9200)
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at91rm9200_miiphy_initialize(bis);
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#endif
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#if defined(CONFIG_MCF52x2)
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mcf52x2_miiphy_initialize(bis);
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#endif
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#if defined(CONFIG_DRIVER_NS7520_ETHERNET)
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ns7520_miiphy_initialize(bis);
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#endif
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return 0;
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}
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#endif
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