diff options
Diffstat (limited to 'target/linux/generic/files/drivers/net/phy/rtl8306.c')
| -rw-r--r-- | target/linux/generic/files/drivers/net/phy/rtl8306.c | 1056 |
1 files changed, 1056 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/rtl8306.c b/target/linux/generic/files/drivers/net/phy/rtl8306.c new file mode 100644 index 000000000..78ded0ace --- /dev/null +++ b/target/linux/generic/files/drivers/net/phy/rtl8306.c @@ -0,0 +1,1056 @@ +/* + * rtl8306.c: RTL8306S switch driver + * + * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * 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. + */ + +#include <linux/if.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/if_ether.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/netlink.h> +#include <net/genetlink.h> +#include <linux/switch.h> +#include <linux/delay.h> +#include <linux/phy.h> + +//#define DEBUG 1 + +/* Global (PHY0) */ +#define RTL8306_REG_PAGE 16 +#define RTL8306_REG_PAGE_LO (1 << 15) +#define RTL8306_REG_PAGE_HI (1 << 1) /* inverted */ + +#define RTL8306_NUM_VLANS 16 +#define RTL8306_NUM_PORTS 6 +#define RTL8306_PORT_CPU 5 +#define RTL8306_NUM_PAGES 4 +#define RTL8306_NUM_REGS 32 + +#define RTL_NAME_S "RTL8306S" +#define RTL_NAME_SD "RTL8306SD" +#define RTL_NAME_SDM "RTL8306SDM" +#define RTL_NAME_UNKNOWN "RTL8306(unknown)" + +#define RTL8306_MAGIC 0x8306 + +static LIST_HEAD(phydevs); + +struct rtl_priv { + struct list_head list; + struct switch_dev dev; + int page; + int type; + int do_cpu; + struct mii_bus *bus; + char hwname[sizeof(RTL_NAME_UNKNOWN)]; + bool fixup; +}; + +struct rtl_phyregs { + int nway; + int speed; + int duplex; +}; + +#define to_rtl(_dev) container_of(_dev, struct rtl_priv, dev) + +enum { + RTL_TYPE_S, + RTL_TYPE_SD, + RTL_TYPE_SDM, +}; + +struct rtl_reg { + int page; + int phy; + int reg; + int bits; + int shift; + int inverted; +}; + +#define RTL_VLAN_REGOFS(name) \ + (RTL_REG_VLAN1_##name - RTL_REG_VLAN0_##name) + +#define RTL_PORT_REGOFS(name) \ + (RTL_REG_PORT1_##name - RTL_REG_PORT0_##name) + +#define RTL_PORT_REG(id, reg) \ + (RTL_REG_PORT0_##reg + (id * RTL_PORT_REGOFS(reg))) + +#define RTL_VLAN_REG(id, reg) \ + (RTL_REG_VLAN0_##reg + (id * RTL_VLAN_REGOFS(reg))) + +#define RTL_GLOBAL_REGATTR(reg) \ + .id = RTL_REG_##reg, \ + .type = SWITCH_TYPE_INT, \ + .ofs = 0, \ + .set = rtl_attr_set_int, \ + .get = rtl_attr_get_int + +#define RTL_PORT_REGATTR(reg) \ + .id = RTL_REG_PORT0_##reg, \ + .type = SWITCH_TYPE_INT, \ + .ofs = RTL_PORT_REGOFS(reg), \ + .set = rtl_attr_set_port_int, \ + .get = rtl_attr_get_port_int + +#define RTL_VLAN_REGATTR(reg) \ + .id = RTL_REG_VLAN0_##reg, \ + .type = SWITCH_TYPE_INT, \ + .ofs = RTL_VLAN_REGOFS(reg), \ + .set = rtl_attr_set_vlan_int, \ + .get = rtl_attr_get_vlan_int + +enum rtl_regidx { + RTL_REG_CHIPID, + RTL_REG_CHIPVER, + RTL_REG_CHIPTYPE, + RTL_REG_CPUPORT, + + RTL_REG_EN_CPUPORT, + RTL_REG_EN_TAG_OUT, + RTL_REG_EN_TAG_CLR, + RTL_REG_EN_TAG_IN, + RTL_REG_TRAP_CPU, + RTL_REG_TRUNK_PORTSEL, + RTL_REG_EN_TRUNK, + RTL_REG_RESET, + + RTL_REG_VLAN_ENABLE, + RTL_REG_VLAN_FILTER, + RTL_REG_VLAN_TAG_ONLY, + RTL_REG_VLAN_TAG_AWARE, +#define RTL_VLAN_ENUM(id) \ + RTL_REG_VLAN##id##_VID, \ + RTL_REG_VLAN##id##_PORTMASK + RTL_VLAN_ENUM(0), + RTL_VLAN_ENUM(1), + RTL_VLAN_ENUM(2), + RTL_VLAN_ENUM(3), + RTL_VLAN_ENUM(4), + RTL_VLAN_ENUM(5), + RTL_VLAN_ENUM(6), + RTL_VLAN_ENUM(7), + RTL_VLAN_ENUM(8), + RTL_VLAN_ENUM(9), + RTL_VLAN_ENUM(10), + RTL_VLAN_ENUM(11), + RTL_VLAN_ENUM(12), + RTL_VLAN_ENUM(13), + RTL_VLAN_ENUM(14), + RTL_VLAN_ENUM(15), +#define RTL_PORT_ENUM(id) \ + RTL_REG_PORT##id##_PVID, \ + RTL_REG_PORT##id##_NULL_VID_REPLACE, \ + RTL_REG_PORT##id##_NON_PVID_DISCARD, \ + RTL_REG_PORT##id##_VID_INSERT, \ + RTL_REG_PORT##id##_TAG_INSERT, \ + RTL_REG_PORT##id##_LINK, \ + RTL_REG_PORT##id##_SPEED, \ + RTL_REG_PORT##id##_NWAY, \ + RTL_REG_PORT##id##_NRESTART, \ + RTL_REG_PORT##id##_DUPLEX, \ + RTL_REG_PORT##id##_RXEN, \ + RTL_REG_PORT##id##_TXEN + RTL_PORT_ENUM(0), + RTL_PORT_ENUM(1), + RTL_PORT_ENUM(2), + RTL_PORT_ENUM(3), + RTL_PORT_ENUM(4), + RTL_PORT_ENUM(5), +}; + +static const struct rtl_reg rtl_regs[] = { + [RTL_REG_CHIPID] = { 0, 4, 30, 16, 0, 0 }, + [RTL_REG_CHIPVER] = { 0, 4, 31, 8, 0, 0 }, + [RTL_REG_CHIPTYPE] = { 0, 4, 31, 2, 8, 0 }, + + /* CPU port number */ + [RTL_REG_CPUPORT] = { 2, 4, 21, 3, 0, 0 }, + /* Enable CPU port function */ + [RTL_REG_EN_CPUPORT] = { 3, 2, 21, 1, 15, 1 }, + /* Enable CPU port tag insertion */ + [RTL_REG_EN_TAG_OUT] = { 3, 2, 21, 1, 12, 0 }, + /* Enable CPU port tag removal */ + [RTL_REG_EN_TAG_CLR] = { 3, 2, 21, 1, 11, 0 }, + /* Enable CPU port tag checking */ + [RTL_REG_EN_TAG_IN] = { 0, 4, 21, 1, 7, 0 }, + [RTL_REG_EN_TRUNK] = { 0, 0, 19, 1, 11, 1 }, + [RTL_REG_TRUNK_PORTSEL] = { 0, 0, 16, 1, 6, 1 }, + [RTL_REG_RESET] = { 0, 0, 16, 1, 12, 0 }, + + [RTL_REG_TRAP_CPU] = { 3, 2, 22, 1, 6, 0 }, + + [RTL_REG_VLAN_TAG_ONLY] = { 0, 0, 16, 1, 8, 1 }, + [RTL_REG_VLAN_FILTER] = { 0, 0, 16, 1, 9, 1 }, + [RTL_REG_VLAN_TAG_AWARE] = { 0, 0, 16, 1, 10, 1 }, + [RTL_REG_VLAN_ENABLE] = { 0, 0, 18, 1, 8, 1 }, + +#define RTL_VLAN_REGS(id, phy, page, regofs) \ + [RTL_REG_VLAN##id##_VID] = { page, phy, 25 + regofs, 12, 0, 0 }, \ + [RTL_REG_VLAN##id##_PORTMASK] = { page, phy, 24 + regofs, 6, 0, 0 } + RTL_VLAN_REGS( 0, 0, 0, 0), + RTL_VLAN_REGS( 1, 1, 0, 0), + RTL_VLAN_REGS( 2, 2, 0, 0), + RTL_VLAN_REGS( 3, 3, 0, 0), + RTL_VLAN_REGS( 4, 4, 0, 0), + RTL_VLAN_REGS( 5, 0, 1, 2), + RTL_VLAN_REGS( 6, 1, 1, 2), + RTL_VLAN_REGS( 7, 2, 1, 2), + RTL_VLAN_REGS( 8, 3, 1, 2), + RTL_VLAN_REGS( 9, 4, 1, 2), + RTL_VLAN_REGS(10, 0, 1, 4), + RTL_VLAN_REGS(11, 1, 1, 4), + RTL_VLAN_REGS(12, 2, 1, 4), + RTL_VLAN_REGS(13, 3, 1, 4), + RTL_VLAN_REGS(14, 4, 1, 4), + RTL_VLAN_REGS(15, 0, 1, 6), + +#define REG_PORT_SETTING(port, phy) \ + [RTL_REG_PORT##port##_SPEED] = { 0, phy, 0, 1, 13, 0 }, \ + [RTL_REG_PORT##port##_NWAY] = { 0, phy, 0, 1, 12, 0 }, \ + [RTL_REG_PORT##port##_NRESTART] = { 0, phy, 0, 1, 9, 0 }, \ + [RTL_REG_PORT##port##_DUPLEX] = { 0, phy, 0, 1, 8, 0 }, \ + [RTL_REG_PORT##port##_TXEN] = { 0, phy, 24, 1, 11, 0 }, \ + [RTL_REG_PORT##port##_RXEN] = { 0, phy, 24, 1, 10, 0 }, \ + [RTL_REG_PORT##port##_LINK] = { 0, phy, 1, 1, 2, 0 }, \ + [RTL_REG_PORT##port##_NULL_VID_REPLACE] = { 0, phy, 22, 1, 12, 0 }, \ + [RTL_REG_PORT##port##_NON_PVID_DISCARD] = { 0, phy, 22, 1, 11, 0 }, \ + [RTL_REG_PORT##port##_VID_INSERT] = { 0, phy, 22, 2, 9, 0 }, \ + [RTL_REG_PORT##port##_TAG_INSERT] = { 0, phy, 22, 2, 0, 0 } + + REG_PORT_SETTING(0, 0), + REG_PORT_SETTING(1, 1), + REG_PORT_SETTING(2, 2), + REG_PORT_SETTING(3, 3), + REG_PORT_SETTING(4, 4), + REG_PORT_SETTING(5, 6), + +#define REG_PORT_PVID(phy, page, regofs) \ + { page, phy, 24 + regofs, 4, 12, 0 } + [RTL_REG_PORT0_PVID] = REG_PORT_PVID(0, 0, 0), + [RTL_REG_PORT1_PVID] = REG_PORT_PVID(1, 0, 0), + [RTL_REG_PORT2_PVID] = REG_PORT_PVID(2, 0, 0), + [RTL_REG_PORT3_PVID] = REG_PORT_PVID(3, 0, 0), + [RTL_REG_PORT4_PVID] = REG_PORT_PVID(4, 0, 0), + [RTL_REG_PORT5_PVID] = REG_PORT_PVID(0, 1, 2), +}; + + +static inline void +rtl_set_page(struct rtl_priv *priv, unsigned int page) +{ + struct mii_bus *bus = priv->bus; + u16 pgsel; + + if (priv->fixup) + return; + + if (priv->page == page) + return; + + BUG_ON(page > RTL8306_NUM_PAGES); + pgsel = bus->read(bus, 0, RTL8306_REG_PAGE); + pgsel &= ~(RTL8306_REG_PAGE_LO | RTL8306_REG_PAGE_HI); + if (page & (1 << 0)) + pgsel |= RTL8306_REG_PAGE_LO; + if (!(page & (1 << 1))) /* bit is inverted */ + pgsel |= RTL8306_REG_PAGE_HI; + bus->write(bus, 0, RTL8306_REG_PAGE, pgsel); +} + +static inline int +rtl_w16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 val) +{ + struct rtl_priv *priv = to_rtl(dev); + struct mii_bus *bus = priv->bus; + + rtl_set_page(priv, page); + bus->write(bus, phy, reg, val); + bus->read(bus, phy, reg); /* flush */ + return 0; +} + +static inline int +rtl_r16(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg) +{ + struct rtl_priv *priv = to_rtl(dev); + struct mii_bus *bus = priv->bus; + + rtl_set_page(priv, page); + return bus->read(bus, phy, reg); +} + +static inline u16 +rtl_rmw(struct switch_dev *dev, unsigned int page, unsigned int phy, unsigned int reg, u16 mask, u16 val) +{ + struct rtl_priv *priv = to_rtl(dev); + struct mii_bus *bus = priv->bus; + u16 r; + + rtl_set_page(priv, page); + r = bus->read(bus, phy, reg); + r &= ~mask; + r |= val; + bus->write(bus, phy, reg, r); + return bus->read(bus, phy, reg); /* flush */ +} + + +static inline int +rtl_get(struct switch_dev *dev, enum rtl_regidx s) +{ + const struct rtl_reg *r = &rtl_regs[s]; + u16 val; + + BUG_ON(s >= ARRAY_SIZE(rtl_regs)); + if (r->bits == 0) /* unimplemented */ + return 0; + + val = rtl_r16(dev, r->page, r->phy, r->reg); + + if (r->shift > 0) + val >>= r->shift; + + if (r->inverted) + val = ~val; + + val &= (1 << r->bits) - 1; + + return val; +} + +static int +rtl_set(struct switch_dev *dev, enum rtl_regidx s, unsigned int val) +{ + const struct rtl_reg *r = &rtl_regs[s]; + u16 mask = 0xffff; + + BUG_ON(s >= ARRAY_SIZE(rtl_regs)); + + if (r->bits == 0) /* unimplemented */ + return 0; + + if (r->shift > 0) + val <<= r->shift; + + if (r->inverted) + val = ~val; + + if (r->bits != 16) { + mask = (1 << r->bits) - 1; + mask <<= r->shift; + } + val &= mask; + return rtl_rmw(dev, r->page, r->phy, r->reg, mask, val); +} + +static void +rtl_phy_save(struct switch_dev *dev, int port, struct rtl_phyregs *regs) +{ + regs->nway = rtl_get(dev, RTL_PORT_REG(port, NWAY)); + regs->speed = rtl_get(dev, RTL_PORT_REG(port, SPEED)); + regs->duplex = rtl_get(dev, RTL_PORT_REG(port, DUPLEX)); +} + +static void +rtl_phy_restore(struct switch_dev *dev, int port, struct rtl_phyregs *regs) +{ + rtl_set(dev, RTL_PORT_REG(port, NWAY), regs->nway); + rtl_set(dev, RTL_PORT_REG(port, SPEED), regs->speed); + rtl_set(dev, RTL_PORT_REG(port, DUPLEX), regs->duplex); +} + +static void +rtl_port_set_enable(struct switch_dev *dev, int port, int enabled) +{ + rtl_set(dev, RTL_PORT_REG(port, RXEN), enabled); + rtl_set(dev, RTL_PORT_REG(port, TXEN), enabled); + + if ((port >= 5) || !enabled) + return; + + /* restart autonegotiation if enabled */ + rtl_set(dev, RTL_PORT_REG(port, NRESTART), 1); +} + +static int +rtl_hw_apply(struct switch_dev *dev) +{ + int i; + int trunk_en, trunk_psel; + struct rtl_phyregs port5; + + rtl_phy_save(dev, 5, &port5); + + /* disable rx/tx from PHYs */ + for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) { + rtl_port_set_enable(dev, i, 0); + } + + /* save trunking status */ + trunk_en = rtl_get(dev, RTL_REG_EN_TRUNK); + trunk_psel = rtl_get(dev, RTL_REG_TRUNK_PORTSEL); + + /* trunk port 3 and 4 + * XXX: Big WTF, but RealTek seems to do it */ + rtl_set(dev, RTL_REG_EN_TRUNK, 1); + rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 1); + + /* execute the software reset */ + rtl_set(dev, RTL_REG_RESET, 1); + + /* wait for the reset to complete, + * but don't wait for too long */ + for (i = 0; i < 10; i++) { + if (rtl_get(dev, RTL_REG_RESET) == 0) + break; + + msleep(1); + } + + /* enable rx/tx from PHYs */ + for (i = 0; i < RTL8306_NUM_PORTS - 1; i++) { + rtl_port_set_enable(dev, i, 1); + } + + /* restore trunking settings */ + rtl_set(dev, RTL_REG_EN_TRUNK, trunk_en); + rtl_set(dev, RTL_REG_TRUNK_PORTSEL, trunk_psel); + rtl_phy_restore(dev, 5, &port5); + + return 0; +} + +static void +rtl_hw_init(struct switch_dev *dev) +{ + struct rtl_priv *priv = to_rtl(dev); + int cpu_mask = 1 << dev->cpu_port; + int i; + + rtl_set(dev, RTL_REG_VLAN_ENABLE, 0); + rtl_set(dev, RTL_REG_VLAN_FILTER, 0); + rtl_set(dev, RTL_REG_EN_TRUNK, 0); + rtl_set(dev, RTL_REG_TRUNK_PORTSEL, 0); + + /* initialize cpu port settings */ + if (priv->do_cpu) { + rtl_set(dev, RTL_REG_CPUPORT, dev->cpu_port); + rtl_set(dev, RTL_REG_EN_CPUPORT, 1); + } else { + rtl_set(dev, RTL_REG_CPUPORT, 7); + rtl_set(dev, RTL_REG_EN_CPUPORT, 0); + } + rtl_set(dev, RTL_REG_EN_TAG_OUT, 0); + rtl_set(dev, RTL_REG_EN_TAG_IN, 0); + rtl_set(dev, RTL_REG_EN_TAG_CLR, 0); + + /* reset all vlans */ + for (i = 0; i < RTL8306_NUM_VLANS; i++) { + rtl_set(dev, RTL_VLAN_REG(i, VID), i); + rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), 0); + } + + /* default to port isolation */ + for (i = 0; i < RTL8306_NUM_PORTS; i++) { + unsigned long mask; + + if ((1 << i) == cpu_mask) + mask = ((1 << RTL8306_NUM_PORTS) - 1) & ~cpu_mask; /* all bits set */ + else + mask = cpu_mask | (1 << i); + + rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), mask); + rtl_set(dev, RTL_PORT_REG(i, PVID), i); + rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1); + rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1); + rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), 3); + } + rtl_hw_apply(dev); +} + +#ifdef DEBUG +static int +rtl_set_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + struct rtl_priv *priv = to_rtl(dev); + priv->do_cpu = val->value.i; + rtl_hw_init(dev); + return 0; +} + +static int +rtl_get_use_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + struct rtl_priv *priv = to_rtl(dev); + val->value.i = priv->do_cpu; + return 0; +} + +static int +rtl_set_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + dev->cpu_port = val->value.i; + rtl_hw_init(dev); + return 0; +} + +static int +rtl_get_cpuport(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + val->value.i = dev->cpu_port; + return 0; +} +#endif + +static int +rtl_reset(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + rtl_hw_init(dev); + return 0; +} + +static int +rtl_attr_set_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + int idx = attr->id + (val->port_vlan * attr->ofs); + struct rtl_phyregs port; + + if (attr->id >= ARRAY_SIZE(rtl_regs)) + return -EINVAL; + + if ((attr->max > 0) && (val->value.i > attr->max)) + return -EINVAL; + + /* access to phy register 22 on port 4/5 + * needs phy status save/restore */ + if ((val->port_vlan > 3) && + (rtl_regs[idx].reg == 22) && + (rtl_regs[idx].page == 0)) { + + rtl_phy_save(dev, val->port_vlan, &port); + rtl_set(dev, idx, val->value.i); + rtl_phy_restore(dev, val->port_vlan, &port); + } else { + rtl_set(dev, idx, val->value.i); + } + + return 0; +} + +static int +rtl_attr_get_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + int idx = attr->id + (val->port_vlan * attr->ofs); + + if (idx >= ARRAY_SIZE(rtl_regs)) + return -EINVAL; + + val->value.i = rtl_get(dev, idx); + return 0; +} + +static int +rtl_attr_set_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + if (val->port_vlan >= RTL8306_NUM_PORTS) + return -EINVAL; + + return rtl_attr_set_int(dev, attr, val); +} + +static int +rtl_attr_get_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + if (val->port_vlan >= RTL8306_NUM_PORTS) + return -EINVAL; + return rtl_attr_get_int(dev, attr, val); +} + +static int +rtl_attr_set_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + if (val->port_vlan >= dev->vlans) + return -EINVAL; + + return rtl_attr_set_int(dev, attr, val); +} + +static int +rtl_attr_get_vlan_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + if (val->port_vlan >= dev->vlans) + return -EINVAL; + + return rtl_attr_get_int(dev, attr, val); +} + +static int +rtl_get_ports(struct switch_dev *dev, struct switch_val *val) +{ + unsigned int i, mask; + + mask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK)); + for (i = 0; i < RTL8306_NUM_PORTS; i++) { + struct switch_port *port; + + if (!(mask & (1 << i))) + continue; + + port = &val->value.ports[val->len]; + port->id = i; + port->flags = 0; + val->len++; + } + + return 0; +} + +static int +rtl_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + struct rtl_priv *priv = to_rtl(dev); + struct rtl_phyregs port; + int en = val->value.i; + int i; + + rtl_set(dev, RTL_REG_EN_TAG_OUT, en && priv->do_cpu); + rtl_set(dev, RTL_REG_EN_TAG_IN, en && priv->do_cpu); + rtl_set(dev, RTL_REG_EN_TAG_CLR, en && priv->do_cpu); + rtl_set(dev, RTL_REG_VLAN_TAG_AWARE, en); + if (en) + rtl_set(dev, RTL_REG_VLAN_FILTER, en); + + for (i = 0; i < RTL8306_NUM_PORTS; i++) { + if (i > 3) + rtl_phy_save(dev, val->port_vlan, &port); + rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1); + rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), (en ? (i == dev->cpu_port ? 0 : 1) : 1)); + rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), (en ? (i == dev->cpu_port ? 2 : 1) : 3)); + if (i > 3) + rtl_phy_restore(dev, val->port_vlan, &port); + } + rtl_set(dev, RTL_REG_VLAN_ENABLE, en); + + return 0; +} + +static int +rtl_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) +{ + return rtl_get(dev, RTL_REG_VLAN_ENABLE); +} + +static int +rtl_set_ports(struct switch_dev *dev, struct switch_val *val) +{ + unsigned int mask = 0; + unsigned int oldmask; + int i; + + for(i = 0; i < val->len; i++) + { + struct switch_port *port = &val->value.ports[i]; + bool tagged = false; + + mask |= (1 << port->id); + + if (port->id == dev->cpu_port) + continue; + + if ((i == dev->cpu_port) || + (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED))) + tagged = true; + + /* fix up PVIDs for added ports */ + if (!tagged) + rtl_set(dev, RTL_PORT_REG(port->id, PVID), val->port_vlan); + + rtl_set(dev, RTL_PORT_REG(port->id, NON_PVID_DISCARD), (tagged ? 0 : 1)); + rtl_set(dev, RTL_PORT_REG(port->id, VID_INSERT), (tagged ? 0 : 1)); + rtl_set(dev, RTL_PORT_REG(port->id, TAG_INSERT), (tagged ? 2 : 1)); + } + + oldmask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK)); + rtl_set(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK), mask); + + /* fix up PVIDs for removed ports, default to last vlan */ + oldmask &= ~mask; + for (i = 0; i < RTL8306_NUM_PORTS; i++) { + if (!(oldmask & (1 << i))) + continue; + + if (i == dev->cpu_port) + continue; + + if (rtl_get(dev, RTL_PORT_REG(i, PVID)) == val->port_vlan) + rtl_set(dev, RTL_PORT_REG(i, PVID), dev->vlans - 1); + } + + return 0; +} + +static struct switch_attr rtl_globals[] = { + { + .type = SWITCH_TYPE_INT, + .name = "reset", + .description = "Reset the switch", + .set = rtl_reset, + }, + { + .type = SWITCH_TYPE_INT, + .name = "enable_vlan", + .description = "Enable VLAN mode", + .max = 1, + .set = rtl_set_vlan, + .get = rtl_get_vlan, + }, + { + RTL_GLOBAL_REGATTR(EN_TRUNK), + .name = "trunk", + .description = "Enable port trunking", + .max = 1, + }, + { + RTL_GLOBAL_REGATTR(TRUNK_PORTSEL), + .name = "trunk_sel", + .description = "Select ports for trunking (0: 0,1 - 1: 3,4)", + .max = 1, + }, +#ifdef DEBUG + { + RTL_GLOBAL_REGATTR(VLAN_FILTER), + .name = "vlan_filter", + .description = "Filter incoming packets for allowed VLANS", + .max = 1, + }, + { + .type = SWITCH_TYPE_INT, + .name = "cpuport", + .description = "CPU Port", + .set = rtl_set_cpuport, + .get = rtl_get_cpuport, + .max = RTL8306_NUM_PORTS, + }, + { + .type = SWITCH_TYPE_INT, + .name = "use_cpuport", + .description = "CPU Port handling flag", + .set = rtl_set_use_cpuport, + .get = rtl_get_use_cpuport, + .max = RTL8306_NUM_PORTS, + }, + { + RTL_GLOBAL_REGATTR(TRAP_CPU), + .name = "trap_cpu", + .description = "VLAN trap to CPU", + .max = 1, + }, + { + RTL_GLOBAL_REGATTR(VLAN_TAG_AWARE), + .name = "vlan_tag_aware", + .description = "Enable VLAN tag awareness", + .max = 1, + }, + { + RTL_GLOBAL_REGATTR(VLAN_TAG_ONLY), + .name = "tag_only", + .description = "Only accept tagged packets", + .max = 1, + }, +#endif +}; +static struct switch_attr rtl_port[] = { + { + RTL_PORT_REGATTR(PVID), + .name = "pvid", + .description = "Port VLAN ID", + .max = RTL8306_NUM_VLANS - 1, + }, + { + RTL_PORT_REGATTR(LINK), + .name = "link", + .description = "get the current link state", + .max = 1, + .set = NULL, + }, +#ifdef DEBUG + { + RTL_PORT_REGATTR(NULL_VID_REPLACE), + .name = "null_vid", + .description = "NULL VID gets replaced by port default vid", + .max = 1, + }, + { + RTL_PORT_REGATTR(NON_PVID_DISCARD), + .name = "non_pvid_discard", + .description = "discard packets with VID != PVID", + .max = 1, + }, + { + RTL_PORT_REGATTR(VID_INSERT), + .name = "vid_insert_remove", + .description = "how should the switch insert and remove vids ?", + .max = 3, + }, + { + RTL_PORT_REGATTR(TAG_INSERT), + .name = "tag_insert", + .description = "tag insertion handling", + .max = 3, + }, +#endif + { + RTL_PORT_REGATTR(SPEED), + .name = "speed", + .description = "current link speed", + .max = 1, + }, + { + RTL_PORT_REGATTR(NWAY), + .name = "nway", + .description = "enable autonegotiation", + .max = 1, + }, +}; + +static struct switch_attr rtl_vlan[] = { + { + RTL_VLAN_REGATTR(VID), + .name = "vid", + .description = "VLAN ID (1-4095)", + .max = 4095, + }, +}; + +static const struct switch_dev_ops rtl8306_ops = { + .attr_global = { + .attr = rtl_globals, + .n_attr = ARRAY_SIZE(rtl_globals), + }, + .attr_port = { + .attr = rtl_port, + .n_attr = ARRAY_SIZE(rtl_port), + }, + .attr_vlan = { + .attr = rtl_vlan, + .n_attr = ARRAY_SIZE(rtl_vlan), + }, + + .get_vlan_ports = rtl_get_ports, + .set_vlan_ports = rtl_set_ports, + .apply_config = rtl_hw_apply, +}; + +static int +rtl8306_config_init(struct phy_device *pdev) +{ + struct net_device *netdev = pdev->attached_dev; + struct rtl_priv *priv = pdev->priv; + struct switch_dev *dev = &priv->dev; + struct switch_val val; + unsigned int chipid, chipver, chiptype; + int err; + + /* Only init the switch for the primary PHY */ + if (pdev->addr != 0) + return 0; + + val.value.i = 1; + priv->dev.cpu_port = RTL8306_PORT_CPU; + priv->dev.ports = RTL8306_NUM_PORTS; + priv->dev.vlans = RTL8306_NUM_VLANS; + priv->dev.ops = &rtl8306_ops; + priv->do_cpu = 0; + priv->page = -1; + priv->bus = pdev->bus; + + chipid = rtl_get(dev, RTL_REG_CHIPID); + chipver = rtl_get(dev, RTL_REG_CHIPVER); + chiptype = rtl_get(dev, RTL_REG_CHIPTYPE); + switch(chiptype) { + case 0: + case 2: + strncpy(priv->hwname, RTL_NAME_S, sizeof(priv->hwname)); + priv->type = RTL_TYPE_S; + break; + case 1: + strncpy(priv->hwname, RTL_NAME_SD, sizeof(priv->hwname)); + priv->type = RTL_TYPE_SD; + break; + case 3: + strncpy(priv->hwname, RTL_NAME_SDM, sizeof(priv->hwname)); + priv->type = RTL_TYPE_SDM; + break; + default: + strncpy(priv->hwname, RTL_NAME_UNKNOWN, sizeof(priv->hwname)); + break; + } + + dev->name = priv->hwname; + rtl_hw_init(dev); + + printk(KERN_INFO "Registering %s switch with Chip ID: 0x%04x, version: 0x%04x\n", priv->hwname, chipid, chipver); + + err = register_switch(dev, netdev); + if (err < 0) { + kfree(priv); + return err; + } + + return 0; +} + + +static int +rtl8306_fixup(struct phy_device *pdev) +{ + struct rtl_priv priv; + u16 chipid; + + /* Attach to primary LAN port and WAN port */ + if (pdev->addr != 0 && pdev->addr != 4) + return 0; + + memset(&priv, 0, sizeof(priv)); + priv.fixup = true; + priv.page = -1; + priv.bus = pdev->bus; + chipid = rtl_get(&priv.dev, RTL_REG_CHIPID); + if (chipid == 0x5988) + pdev->phy_id = RTL8306_MAGIC; + + return 0; +} + +static int +rtl8306_probe(struct phy_device *pdev) +{ + struct rtl_priv *priv; + + list_for_each_entry(priv, &phydevs, list) { + /* + * share one rtl_priv instance between virtual phy + * devices on the same bus + */ + if (priv->bus == pdev->bus) + goto found; + } + priv = kzalloc(sizeof(struct rtl_priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->bus = pdev->bus; + +found: + pdev->priv = priv; + return 0; +} + +static void +rtl8306_remove(struct phy_device *pdev) +{ + struct rtl_priv *priv = pdev->priv; + unregister_switch(&priv->dev); + kfree(priv); +} + +static int +rtl8306_config_aneg(struct phy_device *pdev) +{ + struct rtl_priv *priv = pdev->priv; + + /* Only for WAN */ + if (pdev->addr == 0) + return 0; + + /* Restart autonegotiation */ + rtl_set(&priv->dev, RTL_PORT_REG(4, NWAY), 1); + rtl_set(&priv->dev, RTL_PORT_REG(4, NRESTART), 1); + + return 0; +} + +static int +rtl8306_read_status(struct phy_device *pdev) +{ + struct rtl_priv *priv = pdev->priv; + struct switch_dev *dev = &priv->dev; + + if (pdev->addr == 4) { + /* WAN */ + pdev->speed = rtl_get(dev, RTL_PORT_REG(4, SPEED)) ? SPEED_100 : SPEED_10; + pdev->duplex = rtl_get(dev, RTL_PORT_REG(4, DUPLEX)) ? DUPLEX_FULL : DUPLEX_HALF; + pdev->link = !!rtl_get(dev, RTL_PORT_REG(4, LINK)); + } else { + /* LAN */ + pdev->speed = SPEED_100; + pdev->duplex = DUPLEX_FULL; + pdev->link = 1; + } + + /* + * Bypass generic PHY status read, + * it doesn't work with this switch + */ + if (pdev->link) { + pdev->state = PHY_RUNNING; + netif_carrier_on(pdev->attached_dev); + pdev->adjust_link(pdev->attached_dev); + } else { + pdev->state = PHY_NOLINK; + netif_carrier_off(pdev->attached_dev); + pdev->adjust_link(pdev->attached_dev); + } + + return 0; +} + + +static struct phy_driver rtl8306_driver = { + .name = "Realtek RTL8306S", + .flags = PHY_HAS_MAGICANEG, + .phy_id = RTL8306_MAGIC, + .phy_id_mask = 0xffffffff, + .features = PHY_BASIC_FEATURES, + .probe = &rtl8306_probe, + .remove = &rtl8306_remove, + .config_init = &rtl8306_config_init, + .config_aneg = &rtl8306_config_aneg, + .read_status = &rtl8306_read_status, + .driver = { .owner = THIS_MODULE,}, +}; + + +static int __init +rtl_init(void) +{ + phy_register_fixup_for_id(PHY_ANY_ID, rtl8306_fixup); + return phy_driver_register(&rtl8306_driver); +} + +static void __exit +rtl_exit(void) +{ + phy_driver_unregister(&rtl8306_driver); +} + +module_init(rtl_init); +module_exit(rtl_exit); +MODULE_LICENSE("GPL"); + |