aboutsummaryrefslogtreecommitdiffstats
path: root/package/switch/src/switch-robo.c
diff options
context:
space:
mode:
Diffstat (limited to 'package/switch/src/switch-robo.c')
-rw-r--r--package/switch/src/switch-robo.c583
1 files changed, 583 insertions, 0 deletions
diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c
new file mode 100644
index 000000000..f1160c889
--- /dev/null
+++ b/package/switch/src/switch-robo.c
@@ -0,0 +1,583 @@
+/*
+ * Broadcom BCM5325E/536x switch configuration module
+ *
+ * Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
+ * 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/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 <linux/delay.h>
+#include <asm/uaccess.h>
+
+#include "switch-core.h"
+#include "etc53xx.h"
+
+#ifdef CONFIG_BCM47XX
+#include <nvram.h>
+#endif
+
+#define DRIVER_NAME "bcm53xx"
+#define DRIVER_VERSION "0.02"
+#define PFX "roboswitch: "
+
+#define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
+#define ROBO_PHY_ADDR_TG3 0x01 /* Tigon3 PHY address */
+#define ROBO_PHY_ADDR_BCM63XX 0x00 /* BCM63XX 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
+
+/* Robo device ID register (in ROBO_MGMT_PAGE) */
+#define ROBO_DEVICE_ID 0x30
+#define ROBO_DEVICE_ID_5325 0x25 /* Faked */
+#define ROBO_DEVICE_ID_5395 0x95
+#define ROBO_DEVICE_ID_5397 0x97
+#define ROBO_DEVICE_ID_5398 0x98
+#define ROBO_DEVICE_ID_53115 0x3115
+
+/* Private et.o ioctls */
+#define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
+#define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
+
+/* Data structure for a Roboswitch device. */
+struct robo_switch {
+ char *device; /* The device name string (ethX) */
+ u16 devid; /* ROBO_DEVICE_ID_53xx */
+ bool is_5350;
+ struct ifreq ifr;
+ struct net_device *dev;
+ unsigned char port[6];
+};
+
+/* Currently we can only have one device in the system. */
+static struct robo_switch robo;
+
+
+static int do_ioctl(int cmd)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+
+ set_fs(KERNEL_DS);
+ ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
+ set_fs(old_fs);
+
+ return ret;
+}
+
+static u16 mdio_read(__u16 phy_id, __u8 reg)
+{
+ struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ int err;
+
+ mii->phy_id = phy_id;
+ mii->reg_num = reg;
+
+ err = do_ioctl(SIOCGMIIREG);
+ if (err < 0) {
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCGMIIREG failed! err: %i\n", __FILE__, __LINE__, err);
+
+ return 0xffff;
+ }
+
+ return mii->val_out;
+}
+
+static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
+{
+ struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ int err;
+
+ mii->phy_id = phy_id;
+ mii->reg_num = reg;
+ mii->val_in = val;
+
+ err = do_ioctl(SIOCSMIIREG);
+ if (err < 0) {
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCSMIIREG failed! err: %i\n", __FILE__, __LINE__, err);
+ 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(KERN_ERR PFX "[%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(void)
+{
+ /* 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_switch_enable(void)
+{
+ unsigned int i, last_port;
+ u16 val;
+#ifdef CONFIG_BCM47XX
+ char buf[20];
+#endif
+
+ val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
+ if (!(val & (1 << 1))) {
+ /* Unmanaged mode */
+ val &= ~(1 << 0);
+ /* With forwarding */
+ val |= (1 << 1);
+ robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
+ val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
+ if (!(val & (1 << 1))) {
+ printk("Failed to enable switch\n");
+ return -EBUSY;
+ }
+
+ last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
+ ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
+ for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
+ robo_write16(ROBO_CTRL_PAGE, i, 0);
+ }
+
+#ifdef CONFIG_BCM47XX
+ /* WAN port LED, except for Netgear WGT634U */
+ if (nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
+ if (strcmp(buf, "cfe") != 0)
+ robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
+ }
+#endif
+ return 0;
+}
+
+static void robo_switch_reset(void)
+{
+ if ((robo.devid == ROBO_DEVICE_ID_5395) ||
+ (robo.devid == ROBO_DEVICE_ID_5397) ||
+ (robo.devid == ROBO_DEVICE_ID_5398)) {
+ /* Trigger a software reset. */
+ robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
+ mdelay(500);
+ robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
+ }
+}
+
+static int robo_probe(char *devname)
+{
+ __u32 phyid;
+ unsigned int i;
+ int err = 1;
+
+ printk(KERN_INFO PFX "Probing device %s: ", devname);
+ strcpy(robo.ifr.ifr_name, devname);
+
+ if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
+ printk("No such device\n");
+ return 1;
+ }
+ if (!robo.dev->netdev_ops || !robo.dev->netdev_ops->ndo_do_ioctl) {
+ printk("ndo_do_ioctl not implemented in ethernet driver\n");
+ return 1;
+ }
+
+ robo.device = devname;
+ for (i = 0; i < 5; i++)
+ robo.port[i] = i;
+ robo.port[5] = 8;
+
+ /* try access using MII ioctls - get phy address */
+ if (do_ioctl(SIOCGMIIPHY) < 0) {
+ printk("error while accessing MII phy registers with ioctls\n");
+ goto done;
+ }
+
+ /* got phy address check for robo address */
+ struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ if ((mii->phy_id != ROBO_PHY_ADDR) &&
+ (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
+ (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
+ printk("Invalid phy address (%d)\n", mii->phy_id);
+ goto done;
+ }
+
+ 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, phy_id = 0x%08x\n", phyid);
+ goto done;
+ }
+
+ /* Get the device ID */
+ for (i = 0; i < 10; i++) {
+ robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
+ if (robo.devid)
+ break;
+ udelay(10);
+ }
+ if (!robo.devid)
+ robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
+ robo.is_5350 = robo_vlan5350();
+
+ robo_switch_reset();
+ err = robo_switch_enable();
+ if (err)
+ goto done;
+ err = 0;
+
+ printk("found a 5%s%x!%s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
+ robo.is_5350 ? " It's a 5350." : "");
+
+done:
+ if (err) {
+ dev_put(robo.dev);
+ robo.dev = NULL;
+ }
+ return err;
+}
+
+
+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 (robo.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 */
+
+ if (robo.devid != ROBO_DEVICE_ID_5325) {
+ __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
+ (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
+
+ robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
+ robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
+ robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
+ kfree(c);
+ return 0;
+ }
+
+ val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
+ if (robo.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);
+ }
+
+ kfree(c);
+ 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 :
+ (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
+ 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
+
+ if (robo.devid != ROBO_DEVICE_ID_5325)
+ return 0;
+
+ 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;
+ int j;
+ __u16 val16;
+
+ /* disable switching */
+ set_switch(0);
+
+ /* reset vlans */
+ for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
+ /* write config now */
+ val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
+ if (robo.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, robo.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, robo.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(void)
+{
+ int notfound = 1;
+ char *device;
+
+ device = strdup("ethX");
+ for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
+ if (! switch_device_registered (device))
+ notfound = robo_probe(device);
+ }
+ device[3]--;
+
+ if (notfound) {
+ kfree(device);
+ return -ENODEV;
+ } else {
+ static const switch_config cfg[] = {
+ {
+ .name = "enable",
+ .read = handle_enable_read,
+ .write = handle_enable_write
+ }, {
+ .name = "enable_vlan",
+ .read = handle_enable_vlan_read,
+ .write = handle_enable_vlan_write
+ }, {
+ .name = "reset",
+ .read = NULL,
+ .write = handle_reset
+ }, { NULL, },
+ };
+ static const switch_config vlan[] = {
+ {
+ .name = "ports",
+ .read = handle_vlan_port_read,
+ .write = handle_vlan_port_write
+ }, { 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,
+ };
+ if (robo.devid != ROBO_DEVICE_ID_5325) {
+ driver.ports = 9;
+ driver.cpuport = 8;
+ }
+
+ return switch_register_driver(&driver);
+ }
+}
+
+static void __exit robo_exit(void)
+{
+ switch_unregister_driver(DRIVER_NAME);
+ if (robo.dev)
+ dev_put(robo.dev);
+ kfree(robo.device);
+}
+
+
+MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
+MODULE_LICENSE("GPL");
+
+module_init(robo_init);
+module_exit(robo_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 21:41:43 +0000