+++ /dev/null
-/*
- * Broadcom BCM5325E/536x switch configuration module
- *
- * Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
- * Based on 'robocfg' by Oleg I. Vdovikin
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/if.h>
-#include <linux/if_arp.h>
-#include <linux/sockios.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <asm/uaccess.h>
-
-#include "switch-core.h"
-#include "etc53xx.h"
-
-#define DRIVER_NAME "bcm53xx"
-#define DRIVER_VERSION "0.01"
-
-#define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
-
-/* MII registers */
-#define REG_MII_PAGE 0x10 /* MII Page register */
-#define REG_MII_ADDR 0x11 /* MII Address register */
-#define REG_MII_DATA0 0x18 /* MII Data register 0 */
-
-#define REG_MII_PAGE_ENABLE 1
-#define REG_MII_ADDR_WRITE 1
-#define REG_MII_ADDR_READ 2
-
-/* Private et.o ioctls */
-#define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
-#define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
-
-static char *device;
-static int use_et = 0;
-static int is_5350 = 0;
-static struct ifreq ifr;
-static struct net_device *dev;
-static unsigned char port[6] = { 0, 1, 2, 3, 4, 8 };
-
-static int do_ioctl(int cmd, void *buf)
-{
- mm_segment_t old_fs = get_fs();
- int ret;
-
- if (buf != NULL)
- ifr.ifr_data = (caddr_t) buf;
-
- set_fs(KERNEL_DS);
- ret = dev->do_ioctl(dev, &ifr, cmd);
- set_fs(old_fs);
-
- return ret;
-}
-
-static u16 mdio_read(__u16 phy_id, __u8 reg)
-{
- if (use_et) {
- int args[2] = { reg };
-
- if (phy_id != ROBO_PHY_ADDR) {
- printk(
- "Access to real 'phy' registers unavaliable.\n"
- "Upgrade kernel driver.\n");
-
- return 0xffff;
- }
-
-
- if (do_ioctl(SIOCGETCPHYRD, &args) < 0) {
- printk("[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
- return 0xffff;
- }
-
- return args[1];
- } else {
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &ifr.ifr_data;
- mii->phy_id = phy_id;
- mii->reg_num = reg;
-
- if (do_ioctl(SIOCGMIIREG, NULL) < 0) {
- printk("[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
-
- return 0xffff;
- }
-
- return mii->val_out;
- }
-}
-
-static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
-{
- if (use_et) {
- int args[2] = { reg, val };
-
- if (phy_id != ROBO_PHY_ADDR) {
- printk(
- "Access to real 'phy' registers unavaliable.\n"
- "Upgrade kernel driver.\n");
-
- return;
- }
-
- if (do_ioctl(SIOCSETCPHYWR, args) < 0) {
- printk("[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
- return;
- }
- } else {
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&ifr.ifr_data;
-
- mii->phy_id = phy_id;
- mii->reg_num = reg;
- mii->val_in = val;
-
- if (do_ioctl(SIOCSMIIREG, NULL) < 0) {
- printk("[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
- return;
- }
- }
-}
-
-static int robo_reg(__u8 page, __u8 reg, __u8 op)
-{
- int i = 3;
-
- /* set page number */
- mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
- (page << 8) | REG_MII_PAGE_ENABLE);
-
- /* set register address */
- mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
- (reg << 8) | op);
-
- /* check if operation completed */
- while (i--) {
- if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
- return 0;
- }
-
- printk("[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
-
- return 0;
-}
-
-static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
-{
- int i;
-
- robo_reg(page, reg, REG_MII_ADDR_READ);
-
- for (i = 0; i < count; i++)
- val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
-}
-
-static __u16 robo_read16(__u8 page, __u8 reg)
-{
- robo_reg(page, reg, REG_MII_ADDR_READ);
-
- return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
-}
-
-static __u32 robo_read32(__u8 page, __u8 reg)
-{
- robo_reg(page, reg, REG_MII_ADDR_READ);
-
- return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) +
- (mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
-}
-
-static void robo_write16(__u8 page, __u8 reg, __u16 val16)
-{
- /* write data */
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
-
- robo_reg(page, reg, REG_MII_ADDR_WRITE);
-}
-
-static void robo_write32(__u8 page, __u8 reg, __u32 val32)
-{
- /* write data */
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 65535);
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
-
- robo_reg(page, reg, REG_MII_ADDR_WRITE);
-}
-
-/* checks that attached switch is 5325E/5350 */
-static int robo_vlan5350()
-{
- /* set vlan access id to 15 and read it back */
- __u16 val16 = 15;
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
-
- /* 5365 will refuse this as it does not have this reg */
- return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
-}
-
-
-
-static int robo_probe(char *devname)
-{
- struct ethtool_drvinfo info;
- int i;
- __u32 phyid;
-
- printk("Probing device %s: ", devname);
- strcpy(ifr.ifr_name, devname);
-
- if ((dev = dev_get_by_name(devname)) == NULL) {
- printk("No such device\n");
- return 1;
- }
-
- info.cmd = ETHTOOL_GDRVINFO;
- if (do_ioctl(SIOCETHTOOL, (void *) &info) < 0) {
- printk("SIOCETHTOOL: not supported\n");
- return 1;
- }
-
- /* try access using MII ioctls - get phy address */
- if (do_ioctl(SIOCGMIIPHY, NULL) < 0) {
- use_et = 1;
- } else {
- /* got phy address check for robo address */
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &ifr.ifr_data;
- if (mii->phy_id != ROBO_PHY_ADDR) {
- printk("Invalid phy address (%d)\n", mii->phy_id);
- return 1;
- }
- }
-
- phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
- (mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
-
- if (phyid == 0xffffffff || phyid == 0x55210022) {
- printk("No Robo switch in managed mode found\n");
- return 1;
- }
-
- is_5350 = robo_vlan5350();
-
- printk("found!\n");
- return 0;
-}
-
-
-static int handle_vlan_port_read(void *driver, char *buf, int nr)
-{
- __u16 val16;
- int len = 0;
- int j;
-
- val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
-
- if (is_5350) {
- u32 val32;
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
- /* actual read */
- val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
- if ((val32 & (1 << 20)) /* valid */) {
- for (j = 0; j < 6; j++) {
- if (val32 & (1 << j)) {
- len += sprintf(buf + len, "%d", j);
- if (val32 & (1 << (j + 6))) {
- if (j == 5) buf[len++] = 'u';
- } else {
- buf[len++] = 't';
- if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
- buf[len++] = '*';
- }
- buf[len++] = '\t';
- }
- }
- len += sprintf(buf + len, "\n");
- }
- } else {
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
- /* actual read */
- val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
- if ((val16 & (1 << 14)) /* valid */) {
- for (j = 0; j < 6; j++) {
- if (val16 & (1 << j)) {
- len += sprintf(buf + len, "%d", j);
- if (val16 & (1 << (j + 7))) {
- if (j == 5) buf[len++] = 'u';
- } else {
- buf[len++] = 't';
- if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
- buf[len++] = '*';
- }
- buf[len++] = '\t';
- }
- }
- len += sprintf(buf + len, "\n");
- }
- }
-
- buf[len] = '\0';
-
- return len;
-}
-
-static int handle_vlan_port_write(void *driver, char *buf, int nr)
-{
- switch_driver *d = (switch_driver *) driver;
- switch_vlan_config *c = switch_parse_vlan(d, buf);
- int j;
- __u16 val16;
-
- if (c == NULL)
- return -EINVAL;
-
- for (j = 0; j < d->ports; j++) {
- if ((c->untag | c->pvid) & (1 << j))
- /* change default vlan tag */
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
- }
-
- /* write config now */
- val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
- if (is_5350) {
- robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
- (1 << 20) /* valid */ | (c->untag << 6) | c->port);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
- } else {
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
- (1 << 14) /* valid */ | (c->untag << 7) | c->port);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
- }
-
- return 0;
-}
-
-#define set_switch(state) \
- robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
-
-static int handle_enable_read(void *driver, char *buf, int nr)
-{
- return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
-}
-
-static int handle_enable_write(void *driver, char *buf, int nr)
-{
- set_switch(buf[0] == '1');
-
- return 0;
-}
-
-static int handle_enable_vlan_read(void *driver, char *buf, int nr)
-{
- return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
-}
-
-static int handle_enable_vlan_write(void *driver, char *buf, int nr)
-{
- int disable = ((buf[0] != '1') ? 1 : 0);
-
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
- (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
- (1 << 1) | (1 << 2) | (1 << 3) /* RSV multicast */);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
- (1 << 6) /* drop invalid VID frames */);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
- (1 << 3) /* drop miss V table frames */);
-
- return 0;
-}
-
-static int handle_reset(void *driver, char *buf, int nr)
-{
- switch_driver *d = (switch_driver *) driver;
- switch_vlan_config *c = switch_parse_vlan(d, buf);
- int j;
- __u16 val16;
-
- if (c == NULL)
- return -EINVAL;
-
- /* disable switching */
- set_switch(0);
-
- /* reset vlans */
- for (j = 0; j <= (is_5350 ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
- /* write config now */
- val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
- if (is_5350)
- robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
- else
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
- robo_write16(ROBO_VLAN_PAGE, (is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 : ROBO_VLAN_TABLE_ACCESS), val16);
- }
-
- /* reset ports to a known good state */
- for (j = 0; j < d->ports; j++) {
- robo_write16(ROBO_CTRL_PAGE, port[j], 0x0000);
- robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
- }
-
- /* enable switching */
- set_switch(1);
-
- /* enable vlans */
- handle_enable_vlan_write(driver, "1", 0);
-
- return 0;
-}
-
-static int __init robo_init()
-{
- int notfound = 1;
-
- device = strdup("ethX");
- for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
- notfound = robo_probe(device);
- }
- device[3]--;
-
- if (notfound) {
- kfree(device);
- return -ENODEV;
- } else {
- switch_config cfg[] = {
- {"enable", handle_enable_read, handle_enable_write},
- {"enable_vlan", handle_enable_vlan_read, handle_enable_vlan_write},
- {"reset", NULL, handle_reset},
- {NULL, NULL, NULL}
- };
- switch_config vlan[] = {
- {"ports", handle_vlan_port_read, handle_vlan_port_write},
- {NULL, NULL, NULL}
- };
- switch_driver driver = {
- name: DRIVER_NAME,
- version: DRIVER_VERSION,
- interface: device,
- cpuport: 5,
- ports: 6,
- vlans: 16,
- driver_handlers: cfg,
- port_handlers: NULL,
- vlan_handlers: vlan,
- };
-
- return switch_register_driver(&driver);
- }
-}
-
-static void __exit robo_exit()
-{
- switch_unregister_driver(DRIVER_NAME);
- kfree(device);
-}
-
-
-MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
-MODULE_LICENSE("GPL");
-
-module_init(robo_init);
-module_exit(robo_exit);
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