From 5c105d9f3fd086aff195d3849dcf847d6b0bd927 Mon Sep 17 00:00:00 2001 From: blogic Date: Fri, 5 Oct 2012 10:12:53 +0000 Subject: branch Attitude Adjustment git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/switch/src/switch-robo.c | 583 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 583 insertions(+) create mode 100644 package/switch/src/switch-robo.c (limited to 'package/switch/src/switch-robo.c') 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 + * Copyright (C) 2008 Michael Buesch + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include "switch-core.h" +#include "etc53xx.h" + +#ifdef CONFIG_BCM47XX +#include +#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 "); +MODULE_LICENSE("GPL"); + +module_init(robo_init); +module_exit(robo_exit); -- cgit v1.2.3