/* * Realtek RTL8366 SMI interface driver * * Copyright (C) 2009-2010 Gabor Juhos * * 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. */ #include #include #include #include #include #include #include #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS #include #endif #include "rtl8366_smi.h" #define RTL8366_SMI_ACK_RETRY_COUNT 5 #define RTL8366_SMI_CLK_DELAY 10 /* nsec */ static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi) { ndelay(RTL8366_SMI_CLK_DELAY); } static void rtl8366_smi_start(struct rtl8366_smi *smi) { unsigned int sda = smi->gpio_sda; unsigned int sck = smi->gpio_sck; /* * Set GPIO pins to output mode, with initial state: * SCK = 0, SDA = 1 */ gpio_direction_output(sck, 0); gpio_direction_output(sda, 1); rtl8366_smi_clk_delay(smi); /* CLK 1: 0 -> 1, 1 -> 0 */ gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 0); rtl8366_smi_clk_delay(smi); /* CLK 2: */ gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sda, 0); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 0); rtl8366_smi_clk_delay(smi); gpio_set_value(sda, 1); } static void rtl8366_smi_stop(struct rtl8366_smi *smi) { unsigned int sda = smi->gpio_sda; unsigned int sck = smi->gpio_sck; rtl8366_smi_clk_delay(smi); gpio_set_value(sda, 0); gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sda, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 0); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 1); /* add a click */ rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 0); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 1); /* set GPIO pins to input mode */ gpio_direction_input(sda); gpio_direction_input(sck); } static void rtl8366_smi_write_bits(struct rtl8366_smi *smi, u32 data, u32 len) { unsigned int sda = smi->gpio_sda; unsigned int sck = smi->gpio_sck; for (; len > 0; len--) { rtl8366_smi_clk_delay(smi); /* prepare data */ gpio_set_value(sda, !!(data & ( 1 << (len - 1)))); rtl8366_smi_clk_delay(smi); /* clocking */ gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); gpio_set_value(sck, 0); } } static void rtl8366_smi_read_bits(struct rtl8366_smi *smi, u32 len, u32 *data) { unsigned int sda = smi->gpio_sda; unsigned int sck = smi->gpio_sck; gpio_direction_input(sda); for (*data = 0; len > 0; len--) { u32 u; rtl8366_smi_clk_delay(smi); /* clocking */ gpio_set_value(sck, 1); rtl8366_smi_clk_delay(smi); u = !!gpio_get_value(sda); gpio_set_value(sck, 0); *data |= (u << (len - 1)); } gpio_direction_output(sda, 0); } static int rtl8366_smi_wait_for_ack(struct rtl8366_smi *smi) { int retry_cnt; retry_cnt = 0; do { u32 ack; rtl8366_smi_read_bits(smi, 1, &ack); if (ack == 0) break; if (++retry_cnt > RTL8366_SMI_ACK_RETRY_COUNT) return -EIO; } while (1); return 0; } static int rtl8366_smi_write_byte(struct rtl8366_smi *smi, u8 data) { rtl8366_smi_write_bits(smi, data, 8); return rtl8366_smi_wait_for_ack(smi); } static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data) { u32 t; /* read data */ rtl8366_smi_read_bits(smi, 8, &t); *data = (t & 0xff); /* send an ACK */ rtl8366_smi_write_bits(smi, 0x00, 1); return 0; } static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data) { u32 t; /* read data */ rtl8366_smi_read_bits(smi, 8, &t); *data = (t & 0xff); /* send an ACK */ rtl8366_smi_write_bits(smi, 0x01, 1); return 0; } int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data) { unsigned long flags; u8 lo = 0; u8 hi = 0; int ret; spin_lock_irqsave(&smi->lock, flags); rtl8366_smi_start(smi); /* send READ command */ ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x01); if (ret) goto out; /* set ADDR[7:0] */ ret = rtl8366_smi_write_byte(smi, addr & 0xff); if (ret) goto out; /* set ADDR[15:8] */ ret = rtl8366_smi_write_byte(smi, addr >> 8); if (ret) goto out; /* read DATA[7:0] */ rtl8366_smi_read_byte0(smi, &lo); /* read DATA[15:8] */ rtl8366_smi_read_byte1(smi, &hi); *data = ((u32) lo) | (((u32) hi) << 8); ret = 0; out: rtl8366_smi_stop(smi); spin_unlock_irqrestore(&smi->lock, flags); return ret; } EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg); int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data) { unsigned long flags; int ret; spin_lock_irqsave(&smi->lock, flags); rtl8366_smi_start(smi); /* send WRITE command */ ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x00); if (ret) goto out; /* set ADDR[7:0] */ ret = rtl8366_smi_write_byte(smi, addr & 0xff); if (ret) goto out; /* set ADDR[15:8] */ ret = rtl8366_smi_write_byte(smi, addr >> 8); if (ret) goto out; /* write DATA[7:0] */ ret = rtl8366_smi_write_byte(smi, data & 0xff); if (ret) goto out; /* write DATA[15:8] */ ret = rtl8366_smi_write_byte(smi, data >> 8); if (ret) goto out; ret = 0; out: rtl8366_smi_stop(smi); spin_unlock_irqrestore(&smi->lock, flags); return ret; } EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg); int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data) { u32 t; int err; err = rtl8366_smi_read_reg(smi, addr, &t); if (err) return err; err = rtl8366_smi_write_reg(smi, addr, (t & ~mask) | data); return err; } EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr); static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used) { int err; int i; *used = 0; for (i = 0; i < smi->num_ports; i++) { int index = 0; err = smi->ops->get_mc_index(smi, i, &index); if (err) return err; if (mc_index == index) { *used = 1; break; } } return 0; } static int rtl8366_set_vlan(struct rtl8366_smi *smi, int vid, u32 member, u32 untag, u32 fid) { struct rtl8366_vlan_4k vlan4k; int err; int i; /* Update the 4K table */ err = smi->ops->get_vlan_4k(smi, vid, &vlan4k); if (err) return err; vlan4k.member = member; vlan4k.untag = untag; vlan4k.fid = fid; err = smi->ops->set_vlan_4k(smi, &vlan4k); if (err) return err; /* Try to find an existing MC entry for this VID */ for (i = 0; i < smi->num_vlan_mc; i++) { struct rtl8366_vlan_mc vlanmc; err = smi->ops->get_vlan_mc(smi, i, &vlanmc); if (err) return err; if (vid == vlanmc.vid) { /* update the MC entry */ vlanmc.member = member; vlanmc.untag = untag; vlanmc.fid = fid; err = smi->ops->set_vlan_mc(smi, i, &vlanmc); break; } } return err; } static int rtl8366_get_pvid(struct rtl8366_smi *smi, int port, int *val) { struct rtl8366_vlan_mc vlanmc; int err; int index; err = smi->ops->get_mc_index(smi, port, &index); if (err) return err; err = smi->ops->get_vlan_mc(smi, index, &vlanmc); if (err) return err; *val = vlanmc.vid; return 0; } static int rtl8366_set_pvid(struct rtl8366_smi *smi, unsigned port, unsigned vid) { struct rtl8366_vlan_mc vlanmc; struct rtl8366_vlan_4k vlan4k; int err; int i; /* Try to find an existing MC entry for this VID */ for (i = 0; i < smi->num_vlan_mc; i++) { err = smi->ops->get_vlan_mc(smi, i, &vlanmc); if (err) return err; if (vid == vlanmc.vid) { err = smi->ops->set_vlan_mc(smi, i, &vlanmc); if (err) return err; err = smi->ops->set_mc_index(smi, port, i); return err; } } /* We have no MC entry for this VID, try to find an empty one */ for (i = 0; i < smi->num_vlan_mc; i++) { err = smi->ops->get_vlan_mc(smi, i, &vlanmc); if (err) return err; if (vlanmc.vid == 0 && vlanmc.member == 0) { /* Update the entry from the 4K table */ err = smi->ops->get_vlan_4k(smi, vid, &vlan4k); if (err) return err; vlanmc.vid = vid; vlanmc.member = vlan4k.member; vlanmc.untag = vlan4k.untag; vlanmc.fid = vlan4k.fid; err = smi->ops->set_vlan_mc(smi, i, &vlanmc); if (err) return err; err = smi->ops->set_mc_index(smi, port, i); return err; } } /* MC table is full, try to find an unused entry and replace it */ for (i = 0; i < smi->num_vlan_mc; i++) { int used; err = rtl8366_mc_is_used(smi, i, &used); if (err) return err; if (!used) { /* Update the entry from the 4K table */ err = smi->ops->get_vlan_4k(smi, vid, &vlan4k); if (err) return err; vlanmc.vid = vid; vlanmc.member = vlan4k.member; vlanmc.untag = vlan4k.untag; vlanmc.fid = vlan4k.fid; err = smi->ops->set_vlan_mc(smi, i, &vlanmc); if (err) return err; err = smi->ops->set_mc_index(smi, port, i); return err; } } dev_err(smi->parent, "all VLAN member configurations are in use\n"); return -ENOSPC; } static int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable) { int err; err = smi->ops->enable_vlan(smi, enable); if (err) return err; smi->vlan_enabled = enable; if (!enable) { smi->vlan4k_enabled = 0; err = smi->ops->enable_vlan4k(smi, enable); } return err; } static int rtl8366_enable_vlan4k(struct rtl8366_smi *smi, int enable) { int err; if (enable) { err = smi->ops->enable_vlan(smi, enable); if (err) return err; smi->vlan_enabled = enable; } err = smi->ops->enable_vlan4k(smi, enable); if (err) return err; smi->vlan4k_enabled = enable; return 0; } int rtl8366_enable_all_ports(struct rtl8366_smi *smi, int enable) { int port; int err; for (port = 0; port < smi->num_ports; port++) { err = smi->ops->enable_port(smi, port, enable); if (err) return err; } return 0; } EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports); int rtl8366_reset_vlan(struct rtl8366_smi *smi) { struct rtl8366_vlan_mc vlanmc; int err; int i; rtl8366_enable_vlan(smi, 0); rtl8366_enable_vlan4k(smi, 0); /* clear VLAN member configurations */ vlanmc.vid = 0; vlanmc.priority = 0; vlanmc.member = 0; vlanmc.untag = 0; vlanmc.fid = 0; for (i = 0; i < smi->num_vlan_mc; i++) { err = smi->ops->set_vlan_mc(smi, i, &vlanmc); if (err) return err; } return 0; } EXPORT_SYMBOL_GPL(rtl8366_reset_vlan); static int rtl8366_init_vlan(struct rtl8366_smi *smi) { int port; int err; err = rtl8366_reset_vlan(smi); if (err) return err; for (port = 0; port < smi->num_ports; port++) { u32 mask; if (port == smi->cpu_port) mask = (1 << smi->num_ports) - 1; else mask = (1 << port) | (1 << smi->cpu_port); err = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0); if (err) return err; err = rtl8366_set_pvid(smi, port, (port + 1)); if (err) return err; } return rtl8366_enable_vlan(smi, 1); } #ifdef CONFIG_RTL8366S_PHY_DEBUG_FS int rtl8366_debugfs_open(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } EXPORT_SYMBOL_GPL(rtl8366_debugfs_open); static ssize_t rtl8366_read_debugfs_vlan_mc(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data; int i, len = 0; char *buf = smi->buf; len += snprintf(buf + len, sizeof(smi->buf) - len, "%2s %6s %4s %6s %6s %3s\n", "id", "vid","prio", "member", "untag", "fid"); for (i = 0; i < smi->num_vlan_mc; ++i) { struct rtl8366_vlan_mc vlanmc; smi->ops->get_vlan_mc(smi, i, &vlanmc); len += snprintf(buf + len, sizeof(smi->buf) - len, "%2d %6d %4d 0x%04x 0x%04x %3d\n", i, vlanmc.vid, vlanmc.priority, vlanmc.member, vlanmc.untag, vlanmc.fid); } return simple_read_from_buffer(user_buf, count, ppos, buf, len); } #define RTL8366_VLAN4K_PAGE_SIZE 64 #define RTL8366_VLAN4K_NUM_PAGES (4096 / RTL8366_VLAN4K_PAGE_SIZE) static ssize_t rtl8366_read_debugfs_vlan_4k(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data; int i, len = 0; int offset; char *buf = smi->buf; if (smi->dbg_vlan_4k_page >= RTL8366_VLAN4K_NUM_PAGES) { len += snprintf(buf + len, sizeof(smi->buf) - len, "invalid page: %u\n", smi->dbg_vlan_4k_page); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } len += snprintf(buf + len, sizeof(smi->buf) - len, "%4s %6s %6s %3s\n", "vid", "member", "untag", "fid"); offset = RTL8366_VLAN4K_PAGE_SIZE * smi->dbg_vlan_4k_page; for (i = 0; i < RTL8366_VLAN4K_PAGE_SIZE; i++) { struct rtl8366_vlan_4k vlan4k; smi->ops->get_vlan_4k(smi, offset + i, &vlan4k); len += snprintf(buf + len, sizeof(smi->buf) - len, "%4d 0x%04x 0x%04x %3d\n", vlan4k.vid, vlan4k.member, vlan4k.untag, vlan4k.fid); } return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t rtl8366_read_debugfs_pvid(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data; char *buf = smi->buf; int len = 0; int i; len += snprintf(buf + len, sizeof(smi->buf) - len, "%4s %4s\n", "port", "pvid"); for (i = 0; i < smi->num_ports; i++) { int pvid; int err; err = rtl8366_get_pvid(smi, i, &pvid); if (err) len += snprintf(buf + len, sizeof(smi->buf) - len, "%4d error\n", i); else len += snprintf(buf + len, sizeof(smi->buf) - len, "%4d %4d\n", i, pvid); } return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t rtl8366_read_debugfs_reg(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data; u32 t, reg = smi->dbg_reg; int err, len = 0; char *buf = smi->buf; memset(buf, '\0', sizeof(smi->buf)); err = rtl8366_smi_read_reg(smi, reg, &t); if (err) { len += snprintf(buf, sizeof(smi->buf), "Read failed (reg: 0x%04x)\n", reg); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n", reg, t); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t rtl8366_write_debugfs_reg(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data; unsigned long data; u32 reg = smi->dbg_reg; int err; size_t len; char *buf = smi->buf; len = min(count, sizeof(smi->buf) - 1); if (copy_from_user(buf, user_buf, len)) { dev_err(smi->parent, "copy from user failed\n"); return -EFAULT; } buf[len] = '\0'; if (len > 0 && buf[len - 1] == '\n') buf[len - 1] = '\0'; if (strict_strtoul(buf, 16, &data)) { dev_err(smi->parent, "Invalid reg value %s\n", buf); } else { err = rtl8366_smi_write_reg(smi, reg, data); if (err) { dev_err(smi->parent, "writing reg 0x%04x val 0x%04lx failed\n", reg, data); } } return count; } static ssize_t rtl8366_read_debugfs_mibs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct rtl8366_smi *smi = file->private_data; int i, j, len = 0; char *buf = smi->buf; len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s", "Counter"); for (i = 0; i < smi->num_ports; i++) { char port_buf[10]; snprintf(port_buf, sizeof(port_buf), "Port %d", i); len += snprintf(buf + len, sizeof(smi->buf) - len, " %12s", port_buf); } len += snprintf(buf + len, sizeof(smi->buf) - len, "\n"); for (i = 0; i < smi->num_mib_counters; i++) { len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s ", smi->mib_counters[i].name); for (j = 0; j < smi->num_ports; j++) { unsigned long long counter = 0; if (!smi->ops->get_mib_counter(smi, i, j, &counter)) len += snprintf(buf + len, sizeof(smi->buf) - len, "%12llu ", counter); else len += snprintf(buf + len, sizeof(smi->buf) - len, "%12s ", "error"); } len += snprintf(buf + len, sizeof(smi->buf) - len, "\n"); } return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static const struct file_operations fops_rtl8366_regs = { .read = rtl8366_read_debugfs_reg, .write = rtl8366_write_debugfs_reg, .open = rtl8366_debugfs_open, .owner = THIS_MODULE }; static const struct file_operations fops_rtl8366_vlan_mc = { .read = rtl8366_read_debugfs_vlan_mc, .open = rtl8366_debugfs_open, .owner = THIS_MODULE }; static const struct file_operations fops_rtl8366_vlan_4k = { .read = rtl8366_read_debugfs_vlan_4k, .open = rtl8366_debugfs_open, .owner = THIS_MODULE }; static const struct file_operations fops_rtl8366_pvid = { .read = rtl8366_read_debugfs_pvid, .open = rtl8366_debugfs_open, .owner = THIS_MODULE }; static const struct file_operations fops_rtl8366_mibs = { .read = rtl8366_read_debugfs_mibs, .open = rtl8366_debugfs_open, .owner = THIS_MODULE }; static void rtl8366_debugfs_init(struct rtl8366_smi *smi) { struct dentry *node; struct dentry *root; if (!smi->debugfs_root) smi->debugfs_root = debugfs_create_dir(dev_name(smi->parent), NULL); if (!smi->debugfs_root) { dev_err(smi->parent, "Unable to create debugfs dir\n"); return; } root = smi->debugfs_root; node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root, &smi->dbg_reg); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "reg"); return; } node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi, &fops_rtl8366_regs); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "val"); return; } node = debugfs_create_file("vlan_mc", S_IRUSR, root, smi, &fops_rtl8366_vlan_mc); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "vlan_mc"); return; } node = debugfs_create_u8("vlan_4k_page", S_IRUGO | S_IWUSR, root, &smi->dbg_vlan_4k_page); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "vlan_4k_page"); return; } node = debugfs_create_file("vlan_4k", S_IRUSR, root, smi, &fops_rtl8366_vlan_4k); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "vlan_4k"); return; } node = debugfs_create_file("pvid", S_IRUSR, root, smi, &fops_rtl8366_pvid); if (!node) { dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "pvid"); return; } node = debugfs_create_file("mibs", S_IRUSR, smi->debugfs_root, smi, &fops_rtl8366_mibs); if (!node) dev_err(smi->parent, "Creating debugfs file '%s' failed\n", "mibs"); } static void rtl8366_debugfs_remove(struct rtl8366_smi *smi) { if (smi->debugfs_root) { debugfs_remove_recursive(smi->debugfs_root); smi->debugfs_root = NULL; } } #else static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {} static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {} #endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */ static int rtl8366_smi_mii_init(struct rtl8366_smi *smi) { int ret; int i; smi->mii_bus = mdiobus_alloc(); if (smi->mii_bus == NULL) { ret = -ENOMEM; goto err; } smi->mii_bus->priv = (void *) smi; smi->mii_bus->name = dev_name(smi->parent); smi->mii_bus->read = smi->ops->mii_read; smi->mii_bus->write = smi->ops->mii_write; snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev_name(smi->parent)); smi->mii_bus->parent = smi->parent; smi->mii_bus->phy_mask = ~(0x1f); smi->mii_bus->irq = smi->mii_irq; for (i = 0; i < PHY_MAX_ADDR; i++) smi->mii_irq[i] = PHY_POLL; ret = mdiobus_register(smi->mii_bus); if (ret) goto err_free; return 0; err_free: mdiobus_free(smi->mii_bus); err: return ret; } static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi) { mdiobus_unregister(smi->mii_bus); mdiobus_free(smi->mii_bus); } int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); return rtl8366_get_pvid(smi, port, val); } EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_pvid); int rtl8366_sw_set_port_pvid(struct switch_dev *dev, int port, int val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); return rtl8366_set_pvid(smi, port, val); } EXPORT_SYMBOL_GPL(rtl8366_sw_set_port_pvid); int rtl8366_sw_get_port_mib(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); int i, len = 0; unsigned long long counter = 0; char *buf = smi->buf; if (val->port_vlan >= smi->num_ports) return -EINVAL; len += snprintf(buf + len, sizeof(smi->buf) - len, "Port %d MIB counters\n", val->port_vlan); for (i = 0; i < smi->num_mib_counters; ++i) { len += snprintf(buf + len, sizeof(smi->buf) - len, "%-36s: ", smi->mib_counters[i].name); if (!smi->ops->get_mib_counter(smi, i, val->port_vlan, &counter)) len += snprintf(buf + len, sizeof(smi->buf) - len, "%llu\n", counter); else len += snprintf(buf + len, sizeof(smi->buf) - len, "%s\n", "error"); } val->value.s = buf; val->len = len; return 0; } EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib); int rtl8366_sw_get_vlan_info(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { int i; u32 len = 0; struct rtl8366_vlan_4k vlan4k; struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); char *buf = smi->buf; int err; if (!smi->ops->is_vlan_valid(smi, val->port_vlan)) return -EINVAL; memset(buf, '\0', sizeof(smi->buf)); err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k); if (err) return err; len += snprintf(buf + len, sizeof(smi->buf) - len, "VLAN %d: Ports: '", vlan4k.vid); for (i = 0; i < smi->num_ports; i++) { if (!(vlan4k.member & (1 << i))) continue; len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i, (vlan4k.untag & (1 << i)) ? "" : "t"); } len += snprintf(buf + len, sizeof(smi->buf) - len, "', members=%04x, untag=%04x, fid=%u", vlan4k.member, vlan4k.untag, vlan4k.fid); val->value.s = buf; val->len = len; return 0; } EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_info); int rtl8366_sw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); struct switch_port *port; struct rtl8366_vlan_4k vlan4k; int i; if (!smi->ops->is_vlan_valid(smi, val->port_vlan)) return -EINVAL; smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k); port = &val->value.ports[0]; val->len = 0; for (i = 0; i < smi->num_ports; i++) { if (!(vlan4k.member & BIT(i))) continue; port->id = i; port->flags = (vlan4k.untag & BIT(i)) ? 0 : BIT(SWITCH_PORT_FLAG_TAGGED); val->len++; port++; } return 0; } EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_ports); int rtl8366_sw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); struct switch_port *port; u32 member = 0; u32 untag = 0; int err; int i; if (!smi->ops->is_vlan_valid(smi, val->port_vlan)) return -EINVAL; port = &val->value.ports[0]; for (i = 0; i < val->len; i++, port++) { member |= BIT(port->id); if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED))) untag |= BIT(port->id); /* * To ensure that we have a valid MC entry for this VLAN, * initialize the port VLAN ID here. */ err = rtl8366_set_pvid(smi, port->id, val->port_vlan); if (err < 0) return err; } return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0); } EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_ports); int rtl8366_sw_get_vlan_fid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct rtl8366_vlan_4k vlan4k; struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); int err; if (!smi->ops->is_vlan_valid(smi, val->port_vlan)) return -EINVAL; err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k); if (err) return err; val->value.i = vlan4k.fid; return 0; } EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_fid); int rtl8366_sw_set_vlan_fid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct rtl8366_vlan_4k vlan4k; struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); int err; if (!smi->ops->is_vlan_valid(smi, val->port_vlan)) return -EINVAL; if (val->value.i < 0 || val->value.i > attr->max) return -EINVAL; err = smi->ops->get_vlan_4k(smi, val->port_vlan, &vlan4k); if (err) return err; return rtl8366_set_vlan(smi, val->port_vlan, vlan4k.member, vlan4k.untag, val->value.i); } EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_fid); int rtl8366_sw_get_vlan_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); if (attr->ofs > 2) return -EINVAL; if (attr->ofs == 1) val->value.i = smi->vlan_enabled; else val->value.i = smi->vlan4k_enabled; return 0; } EXPORT_SYMBOL_GPL(rtl8366_sw_get_vlan_enable); int rtl8366_sw_set_vlan_enable(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val) { struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev); int err; if (attr->ofs > 2) return -EINVAL; if (attr->ofs == 1) err = rtl8366_enable_vlan(smi, val->value.i); else err = rtl8366_enable_vlan4k(smi, val->value.i); return err; } EXPORT_SYMBOL_GPL(rtl8366_sw_set_vlan_enable); struct rtl8366_smi *rtl8366_smi_alloc(struct device *parent) { struct rtl8366_smi *smi; BUG_ON(!parent); smi = kzalloc(sizeof(*smi), GFP_KERNEL); if (!smi) { dev_err(parent, "no memory for private data\n"); return NULL; } smi->parent = parent; return smi; } EXPORT_SYMBOL_GPL(rtl8366_smi_alloc); int rtl8366_smi_init(struct rtl8366_smi *smi) { int err; if (!smi->ops) return -EINVAL; err = gpio_request(smi->gpio_sda, dev_name(smi->parent)); if (err) { dev_err(smi->parent, "gpio_request failed for %u, err=%d\n", smi->gpio_sda, err); goto err_out; } err = gpio_request(smi->gpio_sck, dev_name(smi->parent)); if (err) { dev_err(smi->parent, "gpio_request failed for %u, err=%d\n", smi->gpio_sck, err); goto err_free_sda; } spin_lock_init(&smi->lock); dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n", smi->gpio_sda, smi->gpio_sck); err = smi->ops->detect(smi); if (err) { dev_err(smi->parent, "chip detection failed, err=%d\n", err); goto err_free_sck; } err = smi->ops->setup(smi); if (err) { dev_err(smi->parent, "chip setup failed, err=%d\n", err); goto err_free_sck; } err = rtl8366_init_vlan(smi); if (err) { dev_err(smi->parent, "VLAN initialization failed, err=%d\n", err); goto err_free_sck; } err = rtl8366_enable_all_ports(smi, 1); if (err) goto err_free_sck; err = rtl8366_smi_mii_init(smi); if (err) goto err_free_sck; rtl8366_debugfs_init(smi); return 0; err_free_sck: gpio_free(smi->gpio_sck); err_free_sda: gpio_free(smi->gpio_sda); err_out: return err; } EXPORT_SYMBOL_GPL(rtl8366_smi_init); void rtl8366_smi_cleanup(struct rtl8366_smi *smi) { rtl8366_debugfs_remove(smi); rtl8366_smi_mii_cleanup(smi); gpio_free(smi->gpio_sck); gpio_free(smi->gpio_sda); } EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup); MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver"); MODULE_AUTHOR("Gabor Juhos "); MODULE_LICENSE("GPL v2");