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Diffstat (limited to 'openwrt/target/linux/package/switch/src/switch-robo.c')
-rw-r--r--openwrt/target/linux/package/switch/src/switch-robo.c421
1 files changed, 421 insertions, 0 deletions
diff --git a/openwrt/target/linux/package/switch/src/switch-robo.c b/openwrt/target/linux/package/switch/src/switch-robo.c
new file mode 100644
index 000000000..d596dc653
--- /dev/null
+++ b/openwrt/target/linux/package/switch/src/switch-robo.c
@@ -0,0 +1,421 @@
+/*
+ * 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 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 int use_et = 0;
+static int is_5350 = 0;
+static int max_vlans, max_ports;
+static struct ifreq ifr;
+static struct net_device *dev;
+
+static int isspace(char c) {
+ switch(c) {
+ case ' ':
+ case 0x09:
+ case 0x0a:
+ case 0x0d:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+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();
+ max_ports = 6;
+
+ for (i = 0; i <= (is_5350 ? VLAN_ID_MAX5350 : VLAN_ID_MAX); i++) {
+ /* issue read */
+ __u16 val16 = (i) /* 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 */) {
+ max_vlans = i + 1;
+ }
+ } 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 */) {
+ max_vlans = i + 1;
+ }
+ }
+ }
+
+ printk("found!\n");
+ return 0;
+}
+
+
+static int handle_vlan_port_read(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%s\t", j,
+ (val32 & (1 << (j + 6))) ? (j == 5 ? "u" : "") : "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%s\t", j, (val16 & (1 << (j + 7))) ?
+ (j == 5 ? "u" : "") : "t");
+ }
+ }
+ len += sprintf(buf + len, "\n");
+ }
+ }
+
+ return len;
+}
+
+static int handle_vlan_port_write(char *buf, int nr)
+{
+ int untag = 0;
+ int member = 0;
+ int j;
+ __u16 val16;
+
+ while (*buf >= '0' && *buf <= '9') {
+ j = *buf++ - '0';
+ member |= 1 << j;
+
+ /* untag if needed, CPU port requires special handling */
+ if (*buf == 'u' || (j != 5 && (isspace(*buf) || *buf == 0))) {
+ untag |= 1 << j;
+ if (*buf) buf++;
+ /* change default vlan tag */
+ robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
+ } else if (*buf == '*' || *buf == 't' || isspace(*buf)) {
+ buf++;
+ } else break;
+
+ while (isspace(*buf)) buf++;
+ }
+
+ if (*buf) {
+ return -1;
+ } else {
+ /* 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 */ | (untag << 6) | member);
+ robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
+ } else {
+ robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
+ (1 << 14) /* valid */ | (untag << 7) | member);
+ robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
+ }
+ }
+ return 0;
+}
+
+static int __init robo_init()
+{
+ char *device = "ethX";
+ int notfound = 1;
+
+ for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
+ notfound = robo_probe(device);
+ }
+
+ if (notfound)
+ return -ENODEV;
+ else {
+ switch_config vlan[] = {
+ {"ports", handle_vlan_port_read, handle_vlan_port_write},
+ {NULL, NULL, NULL}
+ };
+ switch_driver driver = {
+ name: DRIVER_NAME,
+ ports: max_ports,
+ vlans: max_vlans,
+ driver_handlers: NULL,
+ port_handlers: NULL,
+ vlan_handlers: vlan,
+ };
+
+ return switch_register_driver(&driver);
+ }
+}
+
+static void __exit robo_exit()
+{
+ switch_unregister_driver(DRIVER_NAME);
+}
+
+
+MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
+MODULE_LICENSE("GPL");
+
+module_init(robo_init);
+module_exit(robo_exit);