Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1 | /*************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2007-2010 SMSC |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
Jeff Kirsher | 9cb0007 | 2013-12-06 06:28:46 -0800 | [diff] [blame] | 16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 17 | * |
| 18 | *****************************************************************************/ |
| 19 | |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/kmod.h> |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 22 | #include <linux/netdevice.h> |
| 23 | #include <linux/etherdevice.h> |
| 24 | #include <linux/ethtool.h> |
| 25 | #include <linux/mii.h> |
| 26 | #include <linux/usb.h> |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 27 | #include <linux/bitrev.h> |
| 28 | #include <linux/crc16.h> |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 29 | #include <linux/crc32.h> |
| 30 | #include <linux/usb/usbnet.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 31 | #include <linux/slab.h> |
Arnd Bergmann | c489565 | 2016-04-29 09:05:59 +0200 | [diff] [blame] | 32 | #include <linux/of_net.h> |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 33 | #include "smsc75xx.h" |
| 34 | |
| 35 | #define SMSC_CHIPNAME "smsc75xx" |
| 36 | #define SMSC_DRIVER_VERSION "1.0.0" |
| 37 | #define HS_USB_PKT_SIZE (512) |
| 38 | #define FS_USB_PKT_SIZE (64) |
| 39 | #define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE) |
| 40 | #define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE) |
| 41 | #define DEFAULT_BULK_IN_DELAY (0x00002000) |
| 42 | #define MAX_SINGLE_PACKET_SIZE (9000) |
| 43 | #define LAN75XX_EEPROM_MAGIC (0x7500) |
| 44 | #define EEPROM_MAC_OFFSET (0x01) |
| 45 | #define DEFAULT_TX_CSUM_ENABLE (true) |
| 46 | #define DEFAULT_RX_CSUM_ENABLE (true) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 47 | #define SMSC75XX_INTERNAL_PHY_ID (1) |
| 48 | #define SMSC75XX_TX_OVERHEAD (8) |
| 49 | #define MAX_RX_FIFO_SIZE (20 * 1024) |
| 50 | #define MAX_TX_FIFO_SIZE (12 * 1024) |
| 51 | #define USB_VENDOR_ID_SMSC (0x0424) |
| 52 | #define USB_PRODUCT_ID_LAN7500 (0x7500) |
| 53 | #define USB_PRODUCT_ID_LAN7505 (0x7505) |
Nico Erfurth | ea1649d | 2011-11-08 07:30:40 +0000 | [diff] [blame] | 54 | #define RXW_PADDING 2 |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 55 | #define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \ |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 56 | WAKE_MCAST | WAKE_ARP | WAKE_MAGIC) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 57 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 58 | #define SUSPEND_SUSPEND0 (0x01) |
| 59 | #define SUSPEND_SUSPEND1 (0x02) |
| 60 | #define SUSPEND_SUSPEND2 (0x04) |
| 61 | #define SUSPEND_SUSPEND3 (0x08) |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 62 | #define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ |
| 63 | SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) |
| 64 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 65 | struct smsc75xx_priv { |
| 66 | struct usbnet *dev; |
| 67 | u32 rfe_ctl; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 68 | u32 wolopts; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 69 | u32 multicast_hash_table[DP_SEL_VHF_HASH_LEN]; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 70 | struct mutex dataport_mutex; |
| 71 | spinlock_t rfe_ctl_lock; |
| 72 | struct work_struct set_multicast; |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 73 | u8 suspend_flags; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 74 | }; |
| 75 | |
| 76 | struct usb_context { |
| 77 | struct usb_ctrlrequest req; |
| 78 | struct usbnet *dev; |
| 79 | }; |
| 80 | |
Rusty Russell | eb93992 | 2011-12-19 14:08:01 +0000 | [diff] [blame] | 81 | static bool turbo_mode = true; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 82 | module_param(turbo_mode, bool, 0644); |
| 83 | MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); |
| 84 | |
Yuiko Oshino | 667f036 | 2018-07-03 11:21:46 -0400 | [diff] [blame] | 85 | static int smsc75xx_link_ok_nopm(struct usbnet *dev); |
| 86 | static int smsc75xx_phy_gig_workaround(struct usbnet *dev); |
| 87 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 88 | static int __must_check __smsc75xx_read_reg(struct usbnet *dev, u32 index, |
| 89 | u32 *data, int in_pm) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 90 | { |
Ming Lei | 2b2e41e | 2012-10-24 19:47:03 +0000 | [diff] [blame] | 91 | u32 buf; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 92 | int ret; |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 93 | int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 94 | |
| 95 | BUG_ON(!dev); |
| 96 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 97 | if (!in_pm) |
| 98 | fn = usbnet_read_cmd; |
| 99 | else |
| 100 | fn = usbnet_read_cmd_nopm; |
| 101 | |
| 102 | ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN |
| 103 | | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 104 | 0, index, &buf, 4); |
Dan Carpenter | 58ef6a3 | 2016-05-04 09:21:02 +0300 | [diff] [blame] | 105 | if (unlikely(ret < 0)) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 106 | netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n", |
| 107 | index, ret); |
Dan Carpenter | 58ef6a3 | 2016-05-04 09:21:02 +0300 | [diff] [blame] | 108 | return ret; |
| 109 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 110 | |
Ming Lei | 2b2e41e | 2012-10-24 19:47:03 +0000 | [diff] [blame] | 111 | le32_to_cpus(&buf); |
| 112 | *data = buf; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 113 | |
| 114 | return ret; |
| 115 | } |
| 116 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 117 | static int __must_check __smsc75xx_write_reg(struct usbnet *dev, u32 index, |
| 118 | u32 data, int in_pm) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 119 | { |
Ming Lei | 2b2e41e | 2012-10-24 19:47:03 +0000 | [diff] [blame] | 120 | u32 buf; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 121 | int ret; |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 122 | int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 123 | |
| 124 | BUG_ON(!dev); |
| 125 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 126 | if (!in_pm) |
| 127 | fn = usbnet_write_cmd; |
| 128 | else |
| 129 | fn = usbnet_write_cmd_nopm; |
| 130 | |
Ming Lei | 2b2e41e | 2012-10-24 19:47:03 +0000 | [diff] [blame] | 131 | buf = data; |
| 132 | cpu_to_le32s(&buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 133 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 134 | ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT |
| 135 | | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 136 | 0, index, &buf, 4); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 137 | if (unlikely(ret < 0)) |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 138 | netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n", |
| 139 | index, ret); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 140 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 141 | return ret; |
| 142 | } |
| 143 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 144 | static int __must_check smsc75xx_read_reg_nopm(struct usbnet *dev, u32 index, |
| 145 | u32 *data) |
| 146 | { |
| 147 | return __smsc75xx_read_reg(dev, index, data, 1); |
| 148 | } |
| 149 | |
| 150 | static int __must_check smsc75xx_write_reg_nopm(struct usbnet *dev, u32 index, |
| 151 | u32 data) |
| 152 | { |
| 153 | return __smsc75xx_write_reg(dev, index, data, 1); |
| 154 | } |
| 155 | |
| 156 | static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index, |
| 157 | u32 *data) |
| 158 | { |
| 159 | return __smsc75xx_read_reg(dev, index, data, 0); |
| 160 | } |
| 161 | |
| 162 | static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index, |
| 163 | u32 data) |
| 164 | { |
| 165 | return __smsc75xx_write_reg(dev, index, data, 0); |
| 166 | } |
| 167 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 168 | /* Loop until the read is completed with timeout |
| 169 | * called with phy_mutex held */ |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 170 | static __must_check int __smsc75xx_phy_wait_not_busy(struct usbnet *dev, |
| 171 | int in_pm) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 172 | { |
| 173 | unsigned long start_time = jiffies; |
| 174 | u32 val; |
| 175 | int ret; |
| 176 | |
| 177 | do { |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 178 | ret = __smsc75xx_read_reg(dev, MII_ACCESS, &val, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 179 | if (ret < 0) { |
| 180 | netdev_warn(dev->net, "Error reading MII_ACCESS\n"); |
| 181 | return ret; |
| 182 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 183 | |
| 184 | if (!(val & MII_ACCESS_BUSY)) |
| 185 | return 0; |
| 186 | } while (!time_after(jiffies, start_time + HZ)); |
| 187 | |
| 188 | return -EIO; |
| 189 | } |
| 190 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 191 | static int __smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx, |
| 192 | int in_pm) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 193 | { |
| 194 | struct usbnet *dev = netdev_priv(netdev); |
| 195 | u32 val, addr; |
| 196 | int ret; |
| 197 | |
| 198 | mutex_lock(&dev->phy_mutex); |
| 199 | |
| 200 | /* confirm MII not busy */ |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 201 | ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 202 | if (ret < 0) { |
| 203 | netdev_warn(dev->net, "MII is busy in smsc75xx_mdio_read\n"); |
| 204 | goto done; |
| 205 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 206 | |
| 207 | /* set the address, index & direction (read from PHY) */ |
| 208 | phy_id &= dev->mii.phy_id_mask; |
| 209 | idx &= dev->mii.reg_num_mask; |
| 210 | addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) |
| 211 | | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) |
Steve Glendinning | cb8722d | 2012-04-30 07:56:51 +0000 | [diff] [blame] | 212 | | MII_ACCESS_READ | MII_ACCESS_BUSY; |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 213 | ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 214 | if (ret < 0) { |
| 215 | netdev_warn(dev->net, "Error writing MII_ACCESS\n"); |
| 216 | goto done; |
| 217 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 218 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 219 | ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 220 | if (ret < 0) { |
| 221 | netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx); |
| 222 | goto done; |
| 223 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 224 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 225 | ret = __smsc75xx_read_reg(dev, MII_DATA, &val, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 226 | if (ret < 0) { |
| 227 | netdev_warn(dev->net, "Error reading MII_DATA\n"); |
| 228 | goto done; |
| 229 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 230 | |
| 231 | ret = (u16)(val & 0xFFFF); |
| 232 | |
| 233 | done: |
| 234 | mutex_unlock(&dev->phy_mutex); |
| 235 | return ret; |
| 236 | } |
| 237 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 238 | static void __smsc75xx_mdio_write(struct net_device *netdev, int phy_id, |
| 239 | int idx, int regval, int in_pm) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 240 | { |
| 241 | struct usbnet *dev = netdev_priv(netdev); |
| 242 | u32 val, addr; |
| 243 | int ret; |
| 244 | |
| 245 | mutex_lock(&dev->phy_mutex); |
| 246 | |
| 247 | /* confirm MII not busy */ |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 248 | ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 249 | if (ret < 0) { |
| 250 | netdev_warn(dev->net, "MII is busy in smsc75xx_mdio_write\n"); |
| 251 | goto done; |
| 252 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 253 | |
| 254 | val = regval; |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 255 | ret = __smsc75xx_write_reg(dev, MII_DATA, val, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 256 | if (ret < 0) { |
| 257 | netdev_warn(dev->net, "Error writing MII_DATA\n"); |
| 258 | goto done; |
| 259 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 260 | |
| 261 | /* set the address, index & direction (write to PHY) */ |
| 262 | phy_id &= dev->mii.phy_id_mask; |
| 263 | idx &= dev->mii.reg_num_mask; |
| 264 | addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) |
| 265 | | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) |
Steve Glendinning | cb8722d | 2012-04-30 07:56:51 +0000 | [diff] [blame] | 266 | | MII_ACCESS_WRITE | MII_ACCESS_BUSY; |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 267 | ret = __smsc75xx_write_reg(dev, MII_ACCESS, addr, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 268 | if (ret < 0) { |
| 269 | netdev_warn(dev->net, "Error writing MII_ACCESS\n"); |
| 270 | goto done; |
| 271 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 272 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 273 | ret = __smsc75xx_phy_wait_not_busy(dev, in_pm); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 274 | if (ret < 0) { |
| 275 | netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx); |
| 276 | goto done; |
| 277 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 278 | |
| 279 | done: |
| 280 | mutex_unlock(&dev->phy_mutex); |
| 281 | } |
| 282 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 283 | static int smsc75xx_mdio_read_nopm(struct net_device *netdev, int phy_id, |
| 284 | int idx) |
| 285 | { |
| 286 | return __smsc75xx_mdio_read(netdev, phy_id, idx, 1); |
| 287 | } |
| 288 | |
| 289 | static void smsc75xx_mdio_write_nopm(struct net_device *netdev, int phy_id, |
| 290 | int idx, int regval) |
| 291 | { |
| 292 | __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 1); |
| 293 | } |
| 294 | |
| 295 | static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) |
| 296 | { |
| 297 | return __smsc75xx_mdio_read(netdev, phy_id, idx, 0); |
| 298 | } |
| 299 | |
| 300 | static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, |
| 301 | int regval) |
| 302 | { |
| 303 | __smsc75xx_mdio_write(netdev, phy_id, idx, regval, 0); |
| 304 | } |
| 305 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 306 | static int smsc75xx_wait_eeprom(struct usbnet *dev) |
| 307 | { |
| 308 | unsigned long start_time = jiffies; |
| 309 | u32 val; |
| 310 | int ret; |
| 311 | |
| 312 | do { |
| 313 | ret = smsc75xx_read_reg(dev, E2P_CMD, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 314 | if (ret < 0) { |
| 315 | netdev_warn(dev->net, "Error reading E2P_CMD\n"); |
| 316 | return ret; |
| 317 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 318 | |
| 319 | if (!(val & E2P_CMD_BUSY) || (val & E2P_CMD_TIMEOUT)) |
| 320 | break; |
| 321 | udelay(40); |
| 322 | } while (!time_after(jiffies, start_time + HZ)); |
| 323 | |
| 324 | if (val & (E2P_CMD_TIMEOUT | E2P_CMD_BUSY)) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 325 | netdev_warn(dev->net, "EEPROM read operation timeout\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 326 | return -EIO; |
| 327 | } |
| 328 | |
| 329 | return 0; |
| 330 | } |
| 331 | |
| 332 | static int smsc75xx_eeprom_confirm_not_busy(struct usbnet *dev) |
| 333 | { |
| 334 | unsigned long start_time = jiffies; |
| 335 | u32 val; |
| 336 | int ret; |
| 337 | |
| 338 | do { |
| 339 | ret = smsc75xx_read_reg(dev, E2P_CMD, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 340 | if (ret < 0) { |
| 341 | netdev_warn(dev->net, "Error reading E2P_CMD\n"); |
| 342 | return ret; |
| 343 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 344 | |
| 345 | if (!(val & E2P_CMD_BUSY)) |
| 346 | return 0; |
| 347 | |
| 348 | udelay(40); |
| 349 | } while (!time_after(jiffies, start_time + HZ)); |
| 350 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 351 | netdev_warn(dev->net, "EEPROM is busy\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 352 | return -EIO; |
| 353 | } |
| 354 | |
| 355 | static int smsc75xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length, |
| 356 | u8 *data) |
| 357 | { |
| 358 | u32 val; |
| 359 | int i, ret; |
| 360 | |
| 361 | BUG_ON(!dev); |
| 362 | BUG_ON(!data); |
| 363 | |
| 364 | ret = smsc75xx_eeprom_confirm_not_busy(dev); |
| 365 | if (ret) |
| 366 | return ret; |
| 367 | |
| 368 | for (i = 0; i < length; i++) { |
| 369 | val = E2P_CMD_BUSY | E2P_CMD_READ | (offset & E2P_CMD_ADDR); |
| 370 | ret = smsc75xx_write_reg(dev, E2P_CMD, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 371 | if (ret < 0) { |
| 372 | netdev_warn(dev->net, "Error writing E2P_CMD\n"); |
| 373 | return ret; |
| 374 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 375 | |
| 376 | ret = smsc75xx_wait_eeprom(dev); |
| 377 | if (ret < 0) |
| 378 | return ret; |
| 379 | |
| 380 | ret = smsc75xx_read_reg(dev, E2P_DATA, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 381 | if (ret < 0) { |
| 382 | netdev_warn(dev->net, "Error reading E2P_DATA\n"); |
| 383 | return ret; |
| 384 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 385 | |
| 386 | data[i] = val & 0xFF; |
| 387 | offset++; |
| 388 | } |
| 389 | |
| 390 | return 0; |
| 391 | } |
| 392 | |
| 393 | static int smsc75xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length, |
| 394 | u8 *data) |
| 395 | { |
| 396 | u32 val; |
| 397 | int i, ret; |
| 398 | |
| 399 | BUG_ON(!dev); |
| 400 | BUG_ON(!data); |
| 401 | |
| 402 | ret = smsc75xx_eeprom_confirm_not_busy(dev); |
| 403 | if (ret) |
| 404 | return ret; |
| 405 | |
| 406 | /* Issue write/erase enable command */ |
| 407 | val = E2P_CMD_BUSY | E2P_CMD_EWEN; |
| 408 | ret = smsc75xx_write_reg(dev, E2P_CMD, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 409 | if (ret < 0) { |
| 410 | netdev_warn(dev->net, "Error writing E2P_CMD\n"); |
| 411 | return ret; |
| 412 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 413 | |
| 414 | ret = smsc75xx_wait_eeprom(dev); |
| 415 | if (ret < 0) |
| 416 | return ret; |
| 417 | |
| 418 | for (i = 0; i < length; i++) { |
| 419 | |
| 420 | /* Fill data register */ |
| 421 | val = data[i]; |
| 422 | ret = smsc75xx_write_reg(dev, E2P_DATA, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 423 | if (ret < 0) { |
| 424 | netdev_warn(dev->net, "Error writing E2P_DATA\n"); |
| 425 | return ret; |
| 426 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 427 | |
| 428 | /* Send "write" command */ |
| 429 | val = E2P_CMD_BUSY | E2P_CMD_WRITE | (offset & E2P_CMD_ADDR); |
| 430 | ret = smsc75xx_write_reg(dev, E2P_CMD, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 431 | if (ret < 0) { |
| 432 | netdev_warn(dev->net, "Error writing E2P_CMD\n"); |
| 433 | return ret; |
| 434 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 435 | |
| 436 | ret = smsc75xx_wait_eeprom(dev); |
| 437 | if (ret < 0) |
| 438 | return ret; |
| 439 | |
| 440 | offset++; |
| 441 | } |
| 442 | |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | static int smsc75xx_dataport_wait_not_busy(struct usbnet *dev) |
| 447 | { |
| 448 | int i, ret; |
| 449 | |
| 450 | for (i = 0; i < 100; i++) { |
| 451 | u32 dp_sel; |
| 452 | ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 453 | if (ret < 0) { |
| 454 | netdev_warn(dev->net, "Error reading DP_SEL\n"); |
| 455 | return ret; |
| 456 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 457 | |
| 458 | if (dp_sel & DP_SEL_DPRDY) |
| 459 | return 0; |
| 460 | |
| 461 | udelay(40); |
| 462 | } |
| 463 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 464 | netdev_warn(dev->net, "smsc75xx_dataport_wait_not_busy timed out\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 465 | |
| 466 | return -EIO; |
| 467 | } |
| 468 | |
| 469 | static int smsc75xx_dataport_write(struct usbnet *dev, u32 ram_select, u32 addr, |
| 470 | u32 length, u32 *buf) |
| 471 | { |
| 472 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 473 | u32 dp_sel; |
| 474 | int i, ret; |
| 475 | |
| 476 | mutex_lock(&pdata->dataport_mutex); |
| 477 | |
| 478 | ret = smsc75xx_dataport_wait_not_busy(dev); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 479 | if (ret < 0) { |
| 480 | netdev_warn(dev->net, "smsc75xx_dataport_write busy on entry\n"); |
| 481 | goto done; |
| 482 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 483 | |
| 484 | ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 485 | if (ret < 0) { |
| 486 | netdev_warn(dev->net, "Error reading DP_SEL\n"); |
| 487 | goto done; |
| 488 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 489 | |
| 490 | dp_sel &= ~DP_SEL_RSEL; |
| 491 | dp_sel |= ram_select; |
| 492 | ret = smsc75xx_write_reg(dev, DP_SEL, dp_sel); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 493 | if (ret < 0) { |
| 494 | netdev_warn(dev->net, "Error writing DP_SEL\n"); |
| 495 | goto done; |
| 496 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 497 | |
| 498 | for (i = 0; i < length; i++) { |
| 499 | ret = smsc75xx_write_reg(dev, DP_ADDR, addr + i); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 500 | if (ret < 0) { |
| 501 | netdev_warn(dev->net, "Error writing DP_ADDR\n"); |
| 502 | goto done; |
| 503 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 504 | |
| 505 | ret = smsc75xx_write_reg(dev, DP_DATA, buf[i]); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 506 | if (ret < 0) { |
| 507 | netdev_warn(dev->net, "Error writing DP_DATA\n"); |
| 508 | goto done; |
| 509 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 510 | |
| 511 | ret = smsc75xx_write_reg(dev, DP_CMD, DP_CMD_WRITE); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 512 | if (ret < 0) { |
| 513 | netdev_warn(dev->net, "Error writing DP_CMD\n"); |
| 514 | goto done; |
| 515 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 516 | |
| 517 | ret = smsc75xx_dataport_wait_not_busy(dev); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 518 | if (ret < 0) { |
| 519 | netdev_warn(dev->net, "smsc75xx_dataport_write timeout\n"); |
| 520 | goto done; |
| 521 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | done: |
| 525 | mutex_unlock(&pdata->dataport_mutex); |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | /* returns hash bit number for given MAC address */ |
| 530 | static u32 smsc75xx_hash(char addr[ETH_ALEN]) |
| 531 | { |
| 532 | return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff; |
| 533 | } |
| 534 | |
| 535 | static void smsc75xx_deferred_multicast_write(struct work_struct *param) |
| 536 | { |
| 537 | struct smsc75xx_priv *pdata = |
| 538 | container_of(param, struct smsc75xx_priv, set_multicast); |
| 539 | struct usbnet *dev = pdata->dev; |
| 540 | int ret; |
| 541 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 542 | netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", |
| 543 | pdata->rfe_ctl); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 544 | |
| 545 | smsc75xx_dataport_write(dev, DP_SEL_VHF, DP_SEL_VHF_VLAN_LEN, |
| 546 | DP_SEL_VHF_HASH_LEN, pdata->multicast_hash_table); |
| 547 | |
| 548 | ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 549 | if (ret < 0) |
| 550 | netdev_warn(dev->net, "Error writing RFE_CRL\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | static void smsc75xx_set_multicast(struct net_device *netdev) |
| 554 | { |
| 555 | struct usbnet *dev = netdev_priv(netdev); |
| 556 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 557 | unsigned long flags; |
| 558 | int i; |
| 559 | |
| 560 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); |
| 561 | |
| 562 | pdata->rfe_ctl &= |
| 563 | ~(RFE_CTL_AU | RFE_CTL_AM | RFE_CTL_DPF | RFE_CTL_MHF); |
| 564 | pdata->rfe_ctl |= RFE_CTL_AB; |
| 565 | |
| 566 | for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++) |
| 567 | pdata->multicast_hash_table[i] = 0; |
| 568 | |
| 569 | if (dev->net->flags & IFF_PROMISC) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 570 | netif_dbg(dev, drv, dev->net, "promiscuous mode enabled\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 571 | pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_AU; |
| 572 | } else if (dev->net->flags & IFF_ALLMULTI) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 573 | netif_dbg(dev, drv, dev->net, "receive all multicast enabled\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 574 | pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_DPF; |
| 575 | } else if (!netdev_mc_empty(dev->net)) { |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 576 | struct netdev_hw_addr *ha; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 577 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 578 | netif_dbg(dev, drv, dev->net, "receive multicast hash filter\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 579 | |
| 580 | pdata->rfe_ctl |= RFE_CTL_MHF | RFE_CTL_DPF; |
| 581 | |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 582 | netdev_for_each_mc_addr(ha, netdev) { |
| 583 | u32 bitnum = smsc75xx_hash(ha->addr); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 584 | pdata->multicast_hash_table[bitnum / 32] |= |
| 585 | (1 << (bitnum % 32)); |
| 586 | } |
| 587 | } else { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 588 | netif_dbg(dev, drv, dev->net, "receive own packets only\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 589 | pdata->rfe_ctl |= RFE_CTL_DPF; |
| 590 | } |
| 591 | |
| 592 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); |
| 593 | |
| 594 | /* defer register writes to a sleepable context */ |
| 595 | schedule_work(&pdata->set_multicast); |
| 596 | } |
| 597 | |
| 598 | static int smsc75xx_update_flowcontrol(struct usbnet *dev, u8 duplex, |
| 599 | u16 lcladv, u16 rmtadv) |
| 600 | { |
| 601 | u32 flow = 0, fct_flow = 0; |
| 602 | int ret; |
| 603 | |
| 604 | if (duplex == DUPLEX_FULL) { |
| 605 | u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); |
| 606 | |
| 607 | if (cap & FLOW_CTRL_TX) { |
| 608 | flow = (FLOW_TX_FCEN | 0xFFFF); |
| 609 | /* set fct_flow thresholds to 20% and 80% */ |
| 610 | fct_flow = (8 << 8) | 32; |
| 611 | } |
| 612 | |
| 613 | if (cap & FLOW_CTRL_RX) |
| 614 | flow |= FLOW_RX_FCEN; |
| 615 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 616 | netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n", |
| 617 | (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), |
| 618 | (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 619 | } else { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 620 | netif_dbg(dev, link, dev->net, "half duplex\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | ret = smsc75xx_write_reg(dev, FLOW, flow); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 624 | if (ret < 0) { |
| 625 | netdev_warn(dev->net, "Error writing FLOW\n"); |
| 626 | return ret; |
| 627 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 628 | |
| 629 | ret = smsc75xx_write_reg(dev, FCT_FLOW, fct_flow); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 630 | if (ret < 0) { |
| 631 | netdev_warn(dev->net, "Error writing FCT_FLOW\n"); |
| 632 | return ret; |
| 633 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 634 | |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | static int smsc75xx_link_reset(struct usbnet *dev) |
| 639 | { |
| 640 | struct mii_if_info *mii = &dev->mii; |
David Decotigny | 8ae6dac | 2011-04-27 18:32:38 +0000 | [diff] [blame] | 641 | struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 642 | u16 lcladv, rmtadv; |
| 643 | int ret; |
| 644 | |
Steve Glendinning | 4f94a92 | 2012-05-04 00:57:12 +0000 | [diff] [blame] | 645 | /* write to clear phy interrupt status */ |
Steve Glendinning | 7749622 | 2012-05-04 00:57:11 +0000 | [diff] [blame] | 646 | smsc75xx_mdio_write(dev->net, mii->phy_id, PHY_INT_SRC, |
| 647 | PHY_INT_SRC_CLEAR_ALL); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 648 | |
| 649 | ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 650 | if (ret < 0) { |
| 651 | netdev_warn(dev->net, "Error writing INT_STS\n"); |
| 652 | return ret; |
| 653 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 654 | |
| 655 | mii_check_media(mii, 1, 1); |
| 656 | mii_ethtool_gset(&dev->mii, &ecmd); |
| 657 | lcladv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE); |
| 658 | rmtadv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_LPA); |
| 659 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 660 | netif_dbg(dev, link, dev->net, "speed: %u duplex: %d lcladv: %04x rmtadv: %04x\n", |
| 661 | ethtool_cmd_speed(&ecmd), ecmd.duplex, lcladv, rmtadv); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 662 | |
| 663 | return smsc75xx_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv); |
| 664 | } |
| 665 | |
| 666 | static void smsc75xx_status(struct usbnet *dev, struct urb *urb) |
| 667 | { |
| 668 | u32 intdata; |
| 669 | |
| 670 | if (urb->actual_length != 4) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 671 | netdev_warn(dev->net, "unexpected urb length %d\n", |
| 672 | urb->actual_length); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 673 | return; |
| 674 | } |
| 675 | |
| 676 | memcpy(&intdata, urb->transfer_buffer, 4); |
| 677 | le32_to_cpus(&intdata); |
| 678 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 679 | netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 680 | |
| 681 | if (intdata & INT_ENP_PHY_INT) |
| 682 | usbnet_defer_kevent(dev, EVENT_LINK_RESET); |
| 683 | else |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 684 | netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n", |
| 685 | intdata); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 686 | } |
| 687 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 688 | static int smsc75xx_ethtool_get_eeprom_len(struct net_device *net) |
| 689 | { |
| 690 | return MAX_EEPROM_SIZE; |
| 691 | } |
| 692 | |
| 693 | static int smsc75xx_ethtool_get_eeprom(struct net_device *netdev, |
| 694 | struct ethtool_eeprom *ee, u8 *data) |
| 695 | { |
| 696 | struct usbnet *dev = netdev_priv(netdev); |
| 697 | |
| 698 | ee->magic = LAN75XX_EEPROM_MAGIC; |
| 699 | |
| 700 | return smsc75xx_read_eeprom(dev, ee->offset, ee->len, data); |
| 701 | } |
| 702 | |
| 703 | static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev, |
| 704 | struct ethtool_eeprom *ee, u8 *data) |
| 705 | { |
| 706 | struct usbnet *dev = netdev_priv(netdev); |
| 707 | |
| 708 | if (ee->magic != LAN75XX_EEPROM_MAGIC) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 709 | netdev_warn(dev->net, "EEPROM: magic value mismatch: 0x%x\n", |
| 710 | ee->magic); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 711 | return -EINVAL; |
| 712 | } |
| 713 | |
| 714 | return smsc75xx_write_eeprom(dev, ee->offset, ee->len, data); |
| 715 | } |
| 716 | |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 717 | static void smsc75xx_ethtool_get_wol(struct net_device *net, |
| 718 | struct ethtool_wolinfo *wolinfo) |
| 719 | { |
| 720 | struct usbnet *dev = netdev_priv(net); |
| 721 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 722 | |
| 723 | wolinfo->supported = SUPPORTED_WAKE; |
| 724 | wolinfo->wolopts = pdata->wolopts; |
| 725 | } |
| 726 | |
| 727 | static int smsc75xx_ethtool_set_wol(struct net_device *net, |
| 728 | struct ethtool_wolinfo *wolinfo) |
| 729 | { |
| 730 | struct usbnet *dev = netdev_priv(net); |
| 731 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 732 | int ret; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 733 | |
Florian Fainelli | 8a1e903 | 2018-09-28 16:18:55 -0700 | [diff] [blame] | 734 | if (wolinfo->wolopts & ~SUPPORTED_WAKE) |
| 735 | return -EINVAL; |
| 736 | |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 737 | pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE; |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 738 | |
| 739 | ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 740 | if (ret < 0) |
| 741 | netdev_warn(dev->net, "device_set_wakeup_enable error %d\n", ret); |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 742 | |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 743 | return ret; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 744 | } |
| 745 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 746 | static const struct ethtool_ops smsc75xx_ethtool_ops = { |
| 747 | .get_link = usbnet_get_link, |
| 748 | .nway_reset = usbnet_nway_reset, |
| 749 | .get_drvinfo = usbnet_get_drvinfo, |
| 750 | .get_msglevel = usbnet_get_msglevel, |
| 751 | .set_msglevel = usbnet_set_msglevel, |
| 752 | .get_settings = usbnet_get_settings, |
| 753 | .set_settings = usbnet_set_settings, |
| 754 | .get_eeprom_len = smsc75xx_ethtool_get_eeprom_len, |
| 755 | .get_eeprom = smsc75xx_ethtool_get_eeprom, |
| 756 | .set_eeprom = smsc75xx_ethtool_set_eeprom, |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 757 | .get_wol = smsc75xx_ethtool_get_wol, |
| 758 | .set_wol = smsc75xx_ethtool_set_wol, |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 759 | }; |
| 760 | |
| 761 | static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) |
| 762 | { |
| 763 | struct usbnet *dev = netdev_priv(netdev); |
| 764 | |
| 765 | if (!netif_running(netdev)) |
| 766 | return -EINVAL; |
| 767 | |
| 768 | return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); |
| 769 | } |
| 770 | |
| 771 | static void smsc75xx_init_mac_address(struct usbnet *dev) |
| 772 | { |
Arnd Bergmann | c489565 | 2016-04-29 09:05:59 +0200 | [diff] [blame] | 773 | const u8 *mac_addr; |
| 774 | |
| 775 | /* maybe the boot loader passed the MAC address in devicetree */ |
| 776 | mac_addr = of_get_mac_address(dev->udev->dev.of_node); |
| 777 | if (mac_addr) { |
| 778 | memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN); |
| 779 | return; |
| 780 | } |
| 781 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 782 | /* try reading mac address from EEPROM */ |
| 783 | if (smsc75xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN, |
| 784 | dev->net->dev_addr) == 0) { |
| 785 | if (is_valid_ether_addr(dev->net->dev_addr)) { |
| 786 | /* eeprom values are valid so use them */ |
| 787 | netif_dbg(dev, ifup, dev->net, |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 788 | "MAC address read from EEPROM\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 789 | return; |
| 790 | } |
| 791 | } |
| 792 | |
Arnd Bergmann | c489565 | 2016-04-29 09:05:59 +0200 | [diff] [blame] | 793 | /* no useful static MAC address found. generate a random one */ |
Danny Kukawka | f2cedb6 | 2012-02-15 06:45:39 +0000 | [diff] [blame] | 794 | eth_hw_addr_random(dev->net); |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 795 | netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | static int smsc75xx_set_mac_address(struct usbnet *dev) |
| 799 | { |
| 800 | u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 | |
| 801 | dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24; |
| 802 | u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8; |
| 803 | |
| 804 | int ret = smsc75xx_write_reg(dev, RX_ADDRH, addr_hi); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 805 | if (ret < 0) { |
| 806 | netdev_warn(dev->net, "Failed to write RX_ADDRH: %d\n", ret); |
| 807 | return ret; |
| 808 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 809 | |
| 810 | ret = smsc75xx_write_reg(dev, RX_ADDRL, addr_lo); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 811 | if (ret < 0) { |
| 812 | netdev_warn(dev->net, "Failed to write RX_ADDRL: %d\n", ret); |
| 813 | return ret; |
| 814 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 815 | |
| 816 | addr_hi |= ADDR_FILTX_FB_VALID; |
| 817 | ret = smsc75xx_write_reg(dev, ADDR_FILTX, addr_hi); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 818 | if (ret < 0) { |
| 819 | netdev_warn(dev->net, "Failed to write ADDR_FILTX: %d\n", ret); |
| 820 | return ret; |
| 821 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 822 | |
| 823 | ret = smsc75xx_write_reg(dev, ADDR_FILTX + 4, addr_lo); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 824 | if (ret < 0) |
| 825 | netdev_warn(dev->net, "Failed to write ADDR_FILTX+4: %d\n", ret); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 826 | |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 827 | return ret; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | static int smsc75xx_phy_initialize(struct usbnet *dev) |
| 831 | { |
Steve Glendinning | b140504 | 2012-04-30 07:56:54 +0000 | [diff] [blame] | 832 | int bmcr, ret, timeout = 0; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 833 | |
| 834 | /* Initialize MII structure */ |
| 835 | dev->mii.dev = dev->net; |
| 836 | dev->mii.mdio_read = smsc75xx_mdio_read; |
| 837 | dev->mii.mdio_write = smsc75xx_mdio_write; |
| 838 | dev->mii.phy_id_mask = 0x1f; |
| 839 | dev->mii.reg_num_mask = 0x1f; |
Steve Glendinning | c0b92e4 | 2012-04-30 07:56:55 +0000 | [diff] [blame] | 840 | dev->mii.supports_gmii = 1; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 841 | dev->mii.phy_id = SMSC75XX_INTERNAL_PHY_ID; |
| 842 | |
| 843 | /* reset phy and wait for reset to complete */ |
| 844 | smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); |
| 845 | |
| 846 | do { |
| 847 | msleep(10); |
| 848 | bmcr = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 849 | if (bmcr < 0) { |
| 850 | netdev_warn(dev->net, "Error reading MII_BMCR\n"); |
| 851 | return bmcr; |
| 852 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 853 | timeout++; |
Steve Glendinning | 8a1d59d | 2012-04-30 07:56:53 +0000 | [diff] [blame] | 854 | } while ((bmcr & BMCR_RESET) && (timeout < 100)); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 855 | |
| 856 | if (timeout >= 100) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 857 | netdev_warn(dev->net, "timeout on PHY Reset\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 858 | return -EIO; |
| 859 | } |
| 860 | |
Yuiko Oshino | 667f036 | 2018-07-03 11:21:46 -0400 | [diff] [blame] | 861 | /* phy workaround for gig link */ |
| 862 | smsc75xx_phy_gig_workaround(dev); |
| 863 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 864 | smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, |
| 865 | ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | |
| 866 | ADVERTISE_PAUSE_ASYM); |
Steve Glendinning | c0b92e4 | 2012-04-30 07:56:55 +0000 | [diff] [blame] | 867 | smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000, |
| 868 | ADVERTISE_1000FULL); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 869 | |
Steve Glendinning | b140504 | 2012-04-30 07:56:54 +0000 | [diff] [blame] | 870 | /* read and write to clear phy interrupt status */ |
| 871 | ret = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 872 | if (ret < 0) { |
| 873 | netdev_warn(dev->net, "Error reading PHY_INT_SRC\n"); |
| 874 | return ret; |
| 875 | } |
| 876 | |
Steve Glendinning | b140504 | 2012-04-30 07:56:54 +0000 | [diff] [blame] | 877 | smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_SRC, 0xffff); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 878 | |
| 879 | smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK, |
| 880 | PHY_INT_MASK_DEFAULT); |
| 881 | mii_nway_restart(&dev->mii); |
| 882 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 883 | netif_dbg(dev, ifup, dev->net, "phy initialised successfully\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 884 | return 0; |
| 885 | } |
| 886 | |
| 887 | static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size) |
| 888 | { |
| 889 | int ret = 0; |
| 890 | u32 buf; |
| 891 | bool rxenabled; |
| 892 | |
| 893 | ret = smsc75xx_read_reg(dev, MAC_RX, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 894 | if (ret < 0) { |
| 895 | netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret); |
| 896 | return ret; |
| 897 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 898 | |
| 899 | rxenabled = ((buf & MAC_RX_RXEN) != 0); |
| 900 | |
| 901 | if (rxenabled) { |
| 902 | buf &= ~MAC_RX_RXEN; |
| 903 | ret = smsc75xx_write_reg(dev, MAC_RX, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 904 | if (ret < 0) { |
| 905 | netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret); |
| 906 | return ret; |
| 907 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | /* add 4 to size for FCS */ |
| 911 | buf &= ~MAC_RX_MAX_SIZE; |
| 912 | buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT) & MAC_RX_MAX_SIZE); |
| 913 | |
| 914 | ret = smsc75xx_write_reg(dev, MAC_RX, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 915 | if (ret < 0) { |
| 916 | netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret); |
| 917 | return ret; |
| 918 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 919 | |
| 920 | if (rxenabled) { |
| 921 | buf |= MAC_RX_RXEN; |
| 922 | ret = smsc75xx_write_reg(dev, MAC_RX, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 923 | if (ret < 0) { |
| 924 | netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret); |
| 925 | return ret; |
| 926 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | return 0; |
| 930 | } |
| 931 | |
| 932 | static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu) |
| 933 | { |
| 934 | struct usbnet *dev = netdev_priv(netdev); |
Steve Glendinning | 4c51e53 | 2013-03-28 02:34:41 +0000 | [diff] [blame] | 935 | int ret; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 936 | |
Steve Glendinning | 4c51e53 | 2013-03-28 02:34:41 +0000 | [diff] [blame] | 937 | if (new_mtu > MAX_SINGLE_PACKET_SIZE) |
| 938 | return -EINVAL; |
| 939 | |
| 940 | ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 941 | if (ret < 0) { |
| 942 | netdev_warn(dev->net, "Failed to set mac rx frame length\n"); |
| 943 | return ret; |
| 944 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 945 | |
| 946 | return usbnet_change_mtu(netdev, new_mtu); |
| 947 | } |
| 948 | |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 949 | /* Enable or disable Rx checksum offload engine */ |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 950 | static int smsc75xx_set_features(struct net_device *netdev, |
| 951 | netdev_features_t features) |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 952 | { |
| 953 | struct usbnet *dev = netdev_priv(netdev); |
| 954 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 955 | unsigned long flags; |
| 956 | int ret; |
| 957 | |
| 958 | spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); |
| 959 | |
| 960 | if (features & NETIF_F_RXCSUM) |
| 961 | pdata->rfe_ctl |= RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM; |
| 962 | else |
| 963 | pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM); |
| 964 | |
| 965 | spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); |
| 966 | /* it's racing here! */ |
| 967 | |
| 968 | ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); |
Eric Dumazet | 6eacfc1 | 2018-02-20 21:42:26 -0800 | [diff] [blame] | 969 | if (ret < 0) { |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 970 | netdev_warn(dev->net, "Error writing RFE_CTL\n"); |
Eric Dumazet | 6eacfc1 | 2018-02-20 21:42:26 -0800 | [diff] [blame] | 971 | return ret; |
| 972 | } |
| 973 | return 0; |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 974 | } |
| 975 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 976 | static int smsc75xx_wait_ready(struct usbnet *dev, int in_pm) |
Steve Glendinning | 8762cec | 2012-09-28 00:57:51 +0000 | [diff] [blame] | 977 | { |
| 978 | int timeout = 0; |
| 979 | |
| 980 | do { |
| 981 | u32 buf; |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 982 | int ret; |
| 983 | |
| 984 | ret = __smsc75xx_read_reg(dev, PMT_CTL, &buf, in_pm); |
| 985 | |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 986 | if (ret < 0) { |
| 987 | netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret); |
| 988 | return ret; |
| 989 | } |
Steve Glendinning | 8762cec | 2012-09-28 00:57:51 +0000 | [diff] [blame] | 990 | |
| 991 | if (buf & PMT_CTL_DEV_RDY) |
| 992 | return 0; |
| 993 | |
| 994 | msleep(10); |
| 995 | timeout++; |
| 996 | } while (timeout < 100); |
| 997 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 998 | netdev_warn(dev->net, "timeout waiting for device ready\n"); |
Steve Glendinning | 8762cec | 2012-09-28 00:57:51 +0000 | [diff] [blame] | 999 | return -EIO; |
| 1000 | } |
| 1001 | |
Yuiko Oshino | 667f036 | 2018-07-03 11:21:46 -0400 | [diff] [blame] | 1002 | static int smsc75xx_phy_gig_workaround(struct usbnet *dev) |
| 1003 | { |
| 1004 | struct mii_if_info *mii = &dev->mii; |
| 1005 | int ret = 0, timeout = 0; |
| 1006 | u32 buf, link_up = 0; |
| 1007 | |
| 1008 | /* Set the phy in Gig loopback */ |
| 1009 | smsc75xx_mdio_write(dev->net, mii->phy_id, MII_BMCR, 0x4040); |
| 1010 | |
| 1011 | /* Wait for the link up */ |
| 1012 | do { |
| 1013 | link_up = smsc75xx_link_ok_nopm(dev); |
| 1014 | usleep_range(10000, 20000); |
| 1015 | timeout++; |
| 1016 | } while ((!link_up) && (timeout < 1000)); |
| 1017 | |
| 1018 | if (timeout >= 1000) { |
| 1019 | netdev_warn(dev->net, "Timeout waiting for PHY link up\n"); |
| 1020 | return -EIO; |
| 1021 | } |
| 1022 | |
| 1023 | /* phy reset */ |
| 1024 | ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); |
| 1025 | if (ret < 0) { |
| 1026 | netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret); |
| 1027 | return ret; |
| 1028 | } |
| 1029 | |
| 1030 | buf |= PMT_CTL_PHY_RST; |
| 1031 | |
| 1032 | ret = smsc75xx_write_reg(dev, PMT_CTL, buf); |
| 1033 | if (ret < 0) { |
| 1034 | netdev_warn(dev->net, "Failed to write PMT_CTL: %d\n", ret); |
| 1035 | return ret; |
| 1036 | } |
| 1037 | |
| 1038 | timeout = 0; |
| 1039 | do { |
| 1040 | usleep_range(10000, 20000); |
| 1041 | ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); |
| 1042 | if (ret < 0) { |
| 1043 | netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", |
| 1044 | ret); |
| 1045 | return ret; |
| 1046 | } |
| 1047 | timeout++; |
| 1048 | } while ((buf & PMT_CTL_PHY_RST) && (timeout < 100)); |
| 1049 | |
| 1050 | if (timeout >= 100) { |
| 1051 | netdev_warn(dev->net, "timeout waiting for PHY Reset\n"); |
| 1052 | return -EIO; |
| 1053 | } |
| 1054 | |
| 1055 | return 0; |
| 1056 | } |
| 1057 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1058 | static int smsc75xx_reset(struct usbnet *dev) |
| 1059 | { |
| 1060 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 1061 | u32 buf; |
| 1062 | int ret = 0, timeout; |
| 1063 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1064 | netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1065 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1066 | ret = smsc75xx_wait_ready(dev, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1067 | if (ret < 0) { |
| 1068 | netdev_warn(dev->net, "device not ready in smsc75xx_reset\n"); |
| 1069 | return ret; |
| 1070 | } |
Steve Glendinning | 8762cec | 2012-09-28 00:57:51 +0000 | [diff] [blame] | 1071 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1072 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1073 | if (ret < 0) { |
| 1074 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1075 | return ret; |
| 1076 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1077 | |
| 1078 | buf |= HW_CFG_LRST; |
| 1079 | |
| 1080 | ret = smsc75xx_write_reg(dev, HW_CFG, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1081 | if (ret < 0) { |
| 1082 | netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret); |
| 1083 | return ret; |
| 1084 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1085 | |
| 1086 | timeout = 0; |
| 1087 | do { |
| 1088 | msleep(10); |
| 1089 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1090 | if (ret < 0) { |
| 1091 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1092 | return ret; |
| 1093 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1094 | timeout++; |
| 1095 | } while ((buf & HW_CFG_LRST) && (timeout < 100)); |
| 1096 | |
| 1097 | if (timeout >= 100) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1098 | netdev_warn(dev->net, "timeout on completion of Lite Reset\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1099 | return -EIO; |
| 1100 | } |
| 1101 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1102 | netif_dbg(dev, ifup, dev->net, "Lite reset complete, resetting PHY\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1103 | |
| 1104 | ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1105 | if (ret < 0) { |
| 1106 | netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret); |
| 1107 | return ret; |
| 1108 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1109 | |
| 1110 | buf |= PMT_CTL_PHY_RST; |
| 1111 | |
| 1112 | ret = smsc75xx_write_reg(dev, PMT_CTL, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1113 | if (ret < 0) { |
| 1114 | netdev_warn(dev->net, "Failed to write PMT_CTL: %d\n", ret); |
| 1115 | return ret; |
| 1116 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1117 | |
| 1118 | timeout = 0; |
| 1119 | do { |
| 1120 | msleep(10); |
| 1121 | ret = smsc75xx_read_reg(dev, PMT_CTL, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1122 | if (ret < 0) { |
| 1123 | netdev_warn(dev->net, "Failed to read PMT_CTL: %d\n", ret); |
| 1124 | return ret; |
| 1125 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1126 | timeout++; |
| 1127 | } while ((buf & PMT_CTL_PHY_RST) && (timeout < 100)); |
| 1128 | |
| 1129 | if (timeout >= 100) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1130 | netdev_warn(dev->net, "timeout waiting for PHY Reset\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1131 | return -EIO; |
| 1132 | } |
| 1133 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1134 | netif_dbg(dev, ifup, dev->net, "PHY reset complete\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1135 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1136 | ret = smsc75xx_set_mac_address(dev); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1137 | if (ret < 0) { |
| 1138 | netdev_warn(dev->net, "Failed to set mac address\n"); |
| 1139 | return ret; |
| 1140 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1141 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1142 | netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n", |
| 1143 | dev->net->dev_addr); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1144 | |
| 1145 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1146 | if (ret < 0) { |
| 1147 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1148 | return ret; |
| 1149 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1150 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1151 | netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n", |
| 1152 | buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1153 | |
| 1154 | buf |= HW_CFG_BIR; |
| 1155 | |
| 1156 | ret = smsc75xx_write_reg(dev, HW_CFG, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1157 | if (ret < 0) { |
| 1158 | netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret); |
| 1159 | return ret; |
| 1160 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1161 | |
| 1162 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1163 | if (ret < 0) { |
| 1164 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1165 | return ret; |
| 1166 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1167 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1168 | netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG after writing HW_CFG_BIR: 0x%08x\n", |
| 1169 | buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1170 | |
| 1171 | if (!turbo_mode) { |
| 1172 | buf = 0; |
| 1173 | dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE; |
| 1174 | } else if (dev->udev->speed == USB_SPEED_HIGH) { |
| 1175 | buf = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE; |
| 1176 | dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE; |
| 1177 | } else { |
| 1178 | buf = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE; |
| 1179 | dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; |
| 1180 | } |
| 1181 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1182 | netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n", |
| 1183 | (ulong)dev->rx_urb_size); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1184 | |
| 1185 | ret = smsc75xx_write_reg(dev, BURST_CAP, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1186 | if (ret < 0) { |
| 1187 | netdev_warn(dev->net, "Failed to write BURST_CAP: %d\n", ret); |
| 1188 | return ret; |
| 1189 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1190 | |
| 1191 | ret = smsc75xx_read_reg(dev, BURST_CAP, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1192 | if (ret < 0) { |
| 1193 | netdev_warn(dev->net, "Failed to read BURST_CAP: %d\n", ret); |
| 1194 | return ret; |
| 1195 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1196 | |
| 1197 | netif_dbg(dev, ifup, dev->net, |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1198 | "Read Value from BURST_CAP after writing: 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1199 | |
| 1200 | ret = smsc75xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1201 | if (ret < 0) { |
| 1202 | netdev_warn(dev->net, "Failed to write BULK_IN_DLY: %d\n", ret); |
| 1203 | return ret; |
| 1204 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1205 | |
| 1206 | ret = smsc75xx_read_reg(dev, BULK_IN_DLY, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1207 | if (ret < 0) { |
| 1208 | netdev_warn(dev->net, "Failed to read BULK_IN_DLY: %d\n", ret); |
| 1209 | return ret; |
| 1210 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1211 | |
| 1212 | netif_dbg(dev, ifup, dev->net, |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1213 | "Read Value from BULK_IN_DLY after writing: 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1214 | |
| 1215 | if (turbo_mode) { |
| 1216 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1217 | if (ret < 0) { |
| 1218 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1219 | return ret; |
| 1220 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1221 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1222 | netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1223 | |
| 1224 | buf |= (HW_CFG_MEF | HW_CFG_BCE); |
| 1225 | |
| 1226 | ret = smsc75xx_write_reg(dev, HW_CFG, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1227 | if (ret < 0) { |
| 1228 | netdev_warn(dev->net, "Failed to write HW_CFG: %d\n", ret); |
| 1229 | return ret; |
| 1230 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1231 | |
| 1232 | ret = smsc75xx_read_reg(dev, HW_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1233 | if (ret < 0) { |
| 1234 | netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret); |
| 1235 | return ret; |
| 1236 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1237 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1238 | netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1239 | } |
| 1240 | |
| 1241 | /* set FIFO sizes */ |
| 1242 | buf = (MAX_RX_FIFO_SIZE - 512) / 512; |
| 1243 | ret = smsc75xx_write_reg(dev, FCT_RX_FIFO_END, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1244 | if (ret < 0) { |
| 1245 | netdev_warn(dev->net, "Failed to write FCT_RX_FIFO_END: %d\n", ret); |
| 1246 | return ret; |
| 1247 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1248 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1249 | netif_dbg(dev, ifup, dev->net, "FCT_RX_FIFO_END set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1250 | |
| 1251 | buf = (MAX_TX_FIFO_SIZE - 512) / 512; |
| 1252 | ret = smsc75xx_write_reg(dev, FCT_TX_FIFO_END, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1253 | if (ret < 0) { |
| 1254 | netdev_warn(dev->net, "Failed to write FCT_TX_FIFO_END: %d\n", ret); |
| 1255 | return ret; |
| 1256 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1257 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1258 | netif_dbg(dev, ifup, dev->net, "FCT_TX_FIFO_END set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1259 | |
| 1260 | ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1261 | if (ret < 0) { |
| 1262 | netdev_warn(dev->net, "Failed to write INT_STS: %d\n", ret); |
| 1263 | return ret; |
| 1264 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1265 | |
| 1266 | ret = smsc75xx_read_reg(dev, ID_REV, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1267 | if (ret < 0) { |
| 1268 | netdev_warn(dev->net, "Failed to read ID_REV: %d\n", ret); |
| 1269 | return ret; |
| 1270 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1271 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1272 | netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1273 | |
Steve Glendinning | 97138a1 | 2012-05-04 00:57:13 +0000 | [diff] [blame] | 1274 | ret = smsc75xx_read_reg(dev, E2P_CMD, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1275 | if (ret < 0) { |
| 1276 | netdev_warn(dev->net, "Failed to read E2P_CMD: %d\n", ret); |
| 1277 | return ret; |
| 1278 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1279 | |
Steve Glendinning | 97138a1 | 2012-05-04 00:57:13 +0000 | [diff] [blame] | 1280 | /* only set default GPIO/LED settings if no EEPROM is detected */ |
| 1281 | if (!(buf & E2P_CMD_LOADED)) { |
| 1282 | ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1283 | if (ret < 0) { |
| 1284 | netdev_warn(dev->net, "Failed to read LED_GPIO_CFG: %d\n", ret); |
| 1285 | return ret; |
| 1286 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1287 | |
Steve Glendinning | 97138a1 | 2012-05-04 00:57:13 +0000 | [diff] [blame] | 1288 | buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL); |
| 1289 | buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL; |
| 1290 | |
| 1291 | ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1292 | if (ret < 0) { |
| 1293 | netdev_warn(dev->net, "Failed to write LED_GPIO_CFG: %d\n", ret); |
| 1294 | return ret; |
| 1295 | } |
Steve Glendinning | 97138a1 | 2012-05-04 00:57:13 +0000 | [diff] [blame] | 1296 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1297 | |
| 1298 | ret = smsc75xx_write_reg(dev, FLOW, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1299 | if (ret < 0) { |
| 1300 | netdev_warn(dev->net, "Failed to write FLOW: %d\n", ret); |
| 1301 | return ret; |
| 1302 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1303 | |
| 1304 | ret = smsc75xx_write_reg(dev, FCT_FLOW, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1305 | if (ret < 0) { |
| 1306 | netdev_warn(dev->net, "Failed to write FCT_FLOW: %d\n", ret); |
| 1307 | return ret; |
| 1308 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1309 | |
| 1310 | /* Don't need rfe_ctl_lock during initialisation */ |
| 1311 | ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1312 | if (ret < 0) { |
| 1313 | netdev_warn(dev->net, "Failed to read RFE_CTL: %d\n", ret); |
| 1314 | return ret; |
| 1315 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1316 | |
| 1317 | pdata->rfe_ctl |= RFE_CTL_AB | RFE_CTL_DPF; |
| 1318 | |
| 1319 | ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1320 | if (ret < 0) { |
| 1321 | netdev_warn(dev->net, "Failed to write RFE_CTL: %d\n", ret); |
| 1322 | return ret; |
| 1323 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1324 | |
| 1325 | ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1326 | if (ret < 0) { |
| 1327 | netdev_warn(dev->net, "Failed to read RFE_CTL: %d\n", ret); |
| 1328 | return ret; |
| 1329 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1330 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1331 | netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x\n", |
| 1332 | pdata->rfe_ctl); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1333 | |
| 1334 | /* Enable or disable checksum offload engines */ |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 1335 | smsc75xx_set_features(dev->net, dev->net->features); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1336 | |
| 1337 | smsc75xx_set_multicast(dev->net); |
| 1338 | |
| 1339 | ret = smsc75xx_phy_initialize(dev); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1340 | if (ret < 0) { |
| 1341 | netdev_warn(dev->net, "Failed to initialize PHY: %d\n", ret); |
| 1342 | return ret; |
| 1343 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1344 | |
| 1345 | ret = smsc75xx_read_reg(dev, INT_EP_CTL, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1346 | if (ret < 0) { |
| 1347 | netdev_warn(dev->net, "Failed to read INT_EP_CTL: %d\n", ret); |
| 1348 | return ret; |
| 1349 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1350 | |
| 1351 | /* enable PHY interrupts */ |
| 1352 | buf |= INT_ENP_PHY_INT; |
| 1353 | |
| 1354 | ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1355 | if (ret < 0) { |
| 1356 | netdev_warn(dev->net, "Failed to write INT_EP_CTL: %d\n", ret); |
| 1357 | return ret; |
| 1358 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1359 | |
Steve Glendinning | 2f3a081 | 2012-04-30 07:56:56 +0000 | [diff] [blame] | 1360 | /* allow mac to detect speed and duplex from phy */ |
| 1361 | ret = smsc75xx_read_reg(dev, MAC_CR, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1362 | if (ret < 0) { |
| 1363 | netdev_warn(dev->net, "Failed to read MAC_CR: %d\n", ret); |
| 1364 | return ret; |
| 1365 | } |
Steve Glendinning | 2f3a081 | 2012-04-30 07:56:56 +0000 | [diff] [blame] | 1366 | |
| 1367 | buf |= (MAC_CR_ADD | MAC_CR_ASD); |
| 1368 | ret = smsc75xx_write_reg(dev, MAC_CR, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1369 | if (ret < 0) { |
| 1370 | netdev_warn(dev->net, "Failed to write MAC_CR: %d\n", ret); |
| 1371 | return ret; |
| 1372 | } |
Steve Glendinning | 2f3a081 | 2012-04-30 07:56:56 +0000 | [diff] [blame] | 1373 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1374 | ret = smsc75xx_read_reg(dev, MAC_TX, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1375 | if (ret < 0) { |
| 1376 | netdev_warn(dev->net, "Failed to read MAC_TX: %d\n", ret); |
| 1377 | return ret; |
| 1378 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1379 | |
| 1380 | buf |= MAC_TX_TXEN; |
| 1381 | |
| 1382 | ret = smsc75xx_write_reg(dev, MAC_TX, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1383 | if (ret < 0) { |
| 1384 | netdev_warn(dev->net, "Failed to write MAC_TX: %d\n", ret); |
| 1385 | return ret; |
| 1386 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1387 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1388 | netif_dbg(dev, ifup, dev->net, "MAC_TX set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1389 | |
| 1390 | ret = smsc75xx_read_reg(dev, FCT_TX_CTL, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1391 | if (ret < 0) { |
| 1392 | netdev_warn(dev->net, "Failed to read FCT_TX_CTL: %d\n", ret); |
| 1393 | return ret; |
| 1394 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1395 | |
| 1396 | buf |= FCT_TX_CTL_EN; |
| 1397 | |
| 1398 | ret = smsc75xx_write_reg(dev, FCT_TX_CTL, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1399 | if (ret < 0) { |
| 1400 | netdev_warn(dev->net, "Failed to write FCT_TX_CTL: %d\n", ret); |
| 1401 | return ret; |
| 1402 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1403 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1404 | netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1405 | |
Steve Glendinning | 4c51e53 | 2013-03-28 02:34:41 +0000 | [diff] [blame] | 1406 | ret = smsc75xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1407 | if (ret < 0) { |
| 1408 | netdev_warn(dev->net, "Failed to set max rx frame length\n"); |
| 1409 | return ret; |
| 1410 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1411 | |
| 1412 | ret = smsc75xx_read_reg(dev, MAC_RX, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1413 | if (ret < 0) { |
| 1414 | netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret); |
| 1415 | return ret; |
| 1416 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1417 | |
| 1418 | buf |= MAC_RX_RXEN; |
| 1419 | |
| 1420 | ret = smsc75xx_write_reg(dev, MAC_RX, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1421 | if (ret < 0) { |
| 1422 | netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret); |
| 1423 | return ret; |
| 1424 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1425 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1426 | netif_dbg(dev, ifup, dev->net, "MAC_RX set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1427 | |
| 1428 | ret = smsc75xx_read_reg(dev, FCT_RX_CTL, &buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1429 | if (ret < 0) { |
| 1430 | netdev_warn(dev->net, "Failed to read FCT_RX_CTL: %d\n", ret); |
| 1431 | return ret; |
| 1432 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1433 | |
| 1434 | buf |= FCT_RX_CTL_EN; |
| 1435 | |
| 1436 | ret = smsc75xx_write_reg(dev, FCT_RX_CTL, buf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1437 | if (ret < 0) { |
| 1438 | netdev_warn(dev->net, "Failed to write FCT_RX_CTL: %d\n", ret); |
| 1439 | return ret; |
| 1440 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1441 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1442 | netif_dbg(dev, ifup, dev->net, "FCT_RX_CTL set to 0x%08x\n", buf); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1443 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1444 | netif_dbg(dev, ifup, dev->net, "smsc75xx_reset, return 0\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1445 | return 0; |
| 1446 | } |
| 1447 | |
| 1448 | static const struct net_device_ops smsc75xx_netdev_ops = { |
| 1449 | .ndo_open = usbnet_open, |
| 1450 | .ndo_stop = usbnet_stop, |
| 1451 | .ndo_start_xmit = usbnet_start_xmit, |
| 1452 | .ndo_tx_timeout = usbnet_tx_timeout, |
| 1453 | .ndo_change_mtu = smsc75xx_change_mtu, |
| 1454 | .ndo_set_mac_address = eth_mac_addr, |
| 1455 | .ndo_validate_addr = eth_validate_addr, |
| 1456 | .ndo_do_ioctl = smsc75xx_ioctl, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 1457 | .ndo_set_rx_mode = smsc75xx_set_multicast, |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 1458 | .ndo_set_features = smsc75xx_set_features, |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1459 | }; |
| 1460 | |
| 1461 | static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf) |
| 1462 | { |
| 1463 | struct smsc75xx_priv *pdata = NULL; |
| 1464 | int ret; |
| 1465 | |
| 1466 | printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n"); |
| 1467 | |
| 1468 | ret = usbnet_get_endpoints(dev, intf); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1469 | if (ret < 0) { |
| 1470 | netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret); |
| 1471 | return ret; |
| 1472 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1473 | |
| 1474 | dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc75xx_priv), |
Joe Perches | 38673c8 | 2013-02-03 17:28:11 +0000 | [diff] [blame] | 1475 | GFP_KERNEL); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1476 | |
| 1477 | pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Joe Perches | 38673c8 | 2013-02-03 17:28:11 +0000 | [diff] [blame] | 1478 | if (!pdata) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1479 | return -ENOMEM; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1480 | |
| 1481 | pdata->dev = dev; |
| 1482 | |
| 1483 | spin_lock_init(&pdata->rfe_ctl_lock); |
| 1484 | mutex_init(&pdata->dataport_mutex); |
| 1485 | |
| 1486 | INIT_WORK(&pdata->set_multicast, smsc75xx_deferred_multicast_write); |
| 1487 | |
Eric Dumazet | 20f0170 | 2013-07-23 17:15:54 -0700 | [diff] [blame] | 1488 | if (DEFAULT_TX_CSUM_ENABLE) |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 1489 | dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
Eric Dumazet | 20f0170 | 2013-07-23 17:15:54 -0700 | [diff] [blame] | 1490 | |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 1491 | if (DEFAULT_RX_CSUM_ENABLE) |
| 1492 | dev->net->features |= NETIF_F_RXCSUM; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1493 | |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 1494 | dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
Eric Dumazet | 20f0170 | 2013-07-23 17:15:54 -0700 | [diff] [blame] | 1495 | NETIF_F_RXCSUM; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1496 | |
Steve Glendinning | 481705a | 2012-12-10 01:01:19 +0000 | [diff] [blame] | 1497 | ret = smsc75xx_wait_ready(dev, 0); |
| 1498 | if (ret < 0) { |
| 1499 | netdev_warn(dev->net, "device not ready in smsc75xx_bind\n"); |
| 1500 | return ret; |
| 1501 | } |
| 1502 | |
| 1503 | smsc75xx_init_mac_address(dev); |
| 1504 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1505 | /* Init all registers */ |
| 1506 | ret = smsc75xx_reset(dev); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1507 | if (ret < 0) { |
| 1508 | netdev_warn(dev->net, "smsc75xx_reset error %d\n", ret); |
| 1509 | return ret; |
| 1510 | } |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1511 | |
| 1512 | dev->net->netdev_ops = &smsc75xx_netdev_ops; |
| 1513 | dev->net->ethtool_ops = &smsc75xx_ethtool_ops; |
| 1514 | dev->net->flags |= IFF_MULTICAST; |
| 1515 | dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD; |
Stephane Fillod | a99ff7d | 2012-04-15 11:38:29 +0000 | [diff] [blame] | 1516 | dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1517 | return 0; |
| 1518 | } |
| 1519 | |
| 1520 | static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf) |
| 1521 | { |
| 1522 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 1523 | if (pdata) { |
Yu Zhao | 91c41e3 | 2018-09-28 17:04:30 -0600 | [diff] [blame] | 1524 | cancel_work_sync(&pdata->set_multicast); |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1525 | netif_dbg(dev, ifdown, dev->net, "free pdata\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 1526 | kfree(pdata); |
| 1527 | pdata = NULL; |
| 1528 | dev->data[0] = 0; |
| 1529 | } |
| 1530 | } |
| 1531 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1532 | static u16 smsc_crc(const u8 *buffer, size_t len) |
| 1533 | { |
| 1534 | return bitrev16(crc16(0xFFFF, buffer, len)); |
| 1535 | } |
| 1536 | |
| 1537 | static int smsc75xx_write_wuff(struct usbnet *dev, int filter, u32 wuf_cfg, |
| 1538 | u32 wuf_mask1) |
| 1539 | { |
| 1540 | int cfg_base = WUF_CFGX + filter * 4; |
| 1541 | int mask_base = WUF_MASKX + filter * 16; |
| 1542 | int ret; |
| 1543 | |
| 1544 | ret = smsc75xx_write_reg(dev, cfg_base, wuf_cfg); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1545 | if (ret < 0) { |
| 1546 | netdev_warn(dev->net, "Error writing WUF_CFGX\n"); |
| 1547 | return ret; |
| 1548 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1549 | |
| 1550 | ret = smsc75xx_write_reg(dev, mask_base, wuf_mask1); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1551 | if (ret < 0) { |
| 1552 | netdev_warn(dev->net, "Error writing WUF_MASKX\n"); |
| 1553 | return ret; |
| 1554 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1555 | |
| 1556 | ret = smsc75xx_write_reg(dev, mask_base + 4, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1557 | if (ret < 0) { |
| 1558 | netdev_warn(dev->net, "Error writing WUF_MASKX\n"); |
| 1559 | return ret; |
| 1560 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1561 | |
| 1562 | ret = smsc75xx_write_reg(dev, mask_base + 8, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1563 | if (ret < 0) { |
| 1564 | netdev_warn(dev->net, "Error writing WUF_MASKX\n"); |
| 1565 | return ret; |
| 1566 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1567 | |
| 1568 | ret = smsc75xx_write_reg(dev, mask_base + 12, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1569 | if (ret < 0) { |
| 1570 | netdev_warn(dev->net, "Error writing WUF_MASKX\n"); |
| 1571 | return ret; |
| 1572 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1573 | |
| 1574 | return 0; |
| 1575 | } |
| 1576 | |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1577 | static int smsc75xx_enter_suspend0(struct usbnet *dev) |
| 1578 | { |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1579 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1580 | u32 val; |
| 1581 | int ret; |
| 1582 | |
| 1583 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1584 | if (ret < 0) { |
| 1585 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 1586 | return ret; |
| 1587 | } |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1588 | |
| 1589 | val &= (~(PMT_CTL_SUS_MODE | PMT_CTL_PHY_RST)); |
| 1590 | val |= PMT_CTL_SUS_MODE_0 | PMT_CTL_WOL_EN | PMT_CTL_WUPS; |
| 1591 | |
| 1592 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1593 | if (ret < 0) { |
| 1594 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1595 | return ret; |
| 1596 | } |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1597 | |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 1598 | pdata->suspend_flags |= SUSPEND_SUSPEND0; |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1599 | |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1600 | return 0; |
| 1601 | } |
| 1602 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1603 | static int smsc75xx_enter_suspend1(struct usbnet *dev) |
| 1604 | { |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1605 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1606 | u32 val; |
| 1607 | int ret; |
| 1608 | |
| 1609 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1610 | if (ret < 0) { |
| 1611 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 1612 | return ret; |
| 1613 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1614 | |
| 1615 | val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); |
| 1616 | val |= PMT_CTL_SUS_MODE_1; |
| 1617 | |
| 1618 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1619 | if (ret < 0) { |
| 1620 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1621 | return ret; |
| 1622 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1623 | |
| 1624 | /* clear wol status, enable energy detection */ |
| 1625 | val &= ~PMT_CTL_WUPS; |
| 1626 | val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN); |
| 1627 | |
| 1628 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1629 | if (ret < 0) { |
| 1630 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1631 | return ret; |
| 1632 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1633 | |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 1634 | pdata->suspend_flags |= SUSPEND_SUSPEND1; |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1635 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1636 | return 0; |
| 1637 | } |
| 1638 | |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1639 | static int smsc75xx_enter_suspend2(struct usbnet *dev) |
| 1640 | { |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1641 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1642 | u32 val; |
| 1643 | int ret; |
| 1644 | |
| 1645 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1646 | if (ret < 0) { |
| 1647 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 1648 | return ret; |
| 1649 | } |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1650 | |
| 1651 | val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); |
| 1652 | val |= PMT_CTL_SUS_MODE_2; |
| 1653 | |
| 1654 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1655 | if (ret < 0) { |
| 1656 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1657 | return ret; |
| 1658 | } |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1659 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1660 | pdata->suspend_flags |= SUSPEND_SUSPEND2; |
| 1661 | |
| 1662 | return 0; |
| 1663 | } |
| 1664 | |
| 1665 | static int smsc75xx_enter_suspend3(struct usbnet *dev) |
| 1666 | { |
| 1667 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
| 1668 | u32 val; |
| 1669 | int ret; |
| 1670 | |
| 1671 | ret = smsc75xx_read_reg_nopm(dev, FCT_RX_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1672 | if (ret < 0) { |
| 1673 | netdev_warn(dev->net, "Error reading FCT_RX_CTL\n"); |
| 1674 | return ret; |
| 1675 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1676 | |
| 1677 | if (val & FCT_RX_CTL_RXUSED) { |
| 1678 | netdev_dbg(dev->net, "rx fifo not empty in autosuspend\n"); |
| 1679 | return -EBUSY; |
| 1680 | } |
| 1681 | |
| 1682 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1683 | if (ret < 0) { |
| 1684 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 1685 | return ret; |
| 1686 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1687 | |
| 1688 | val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST); |
| 1689 | val |= PMT_CTL_SUS_MODE_3 | PMT_CTL_RES_CLR_WKP_EN; |
| 1690 | |
| 1691 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1692 | if (ret < 0) { |
| 1693 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1694 | return ret; |
| 1695 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1696 | |
| 1697 | /* clear wol status */ |
| 1698 | val &= ~PMT_CTL_WUPS; |
| 1699 | val |= PMT_CTL_WUPS_WOL; |
| 1700 | |
| 1701 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1702 | if (ret < 0) { |
| 1703 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1704 | return ret; |
| 1705 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1706 | |
Steve Glendinning | 351f33d | 2012-11-28 05:59:50 +0000 | [diff] [blame] | 1707 | pdata->suspend_flags |= SUSPEND_SUSPEND3; |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1708 | |
Steve Glendinning | 9deb275 | 2012-11-28 05:59:46 +0000 | [diff] [blame] | 1709 | return 0; |
| 1710 | } |
| 1711 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1712 | static int smsc75xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask) |
| 1713 | { |
| 1714 | struct mii_if_info *mii = &dev->mii; |
| 1715 | int ret; |
| 1716 | |
| 1717 | netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n"); |
| 1718 | |
| 1719 | /* read to clear */ |
| 1720 | ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_SRC); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1721 | if (ret < 0) { |
| 1722 | netdev_warn(dev->net, "Error reading PHY_INT_SRC\n"); |
| 1723 | return ret; |
| 1724 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1725 | |
| 1726 | /* enable interrupt source */ |
| 1727 | ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, PHY_INT_MASK); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1728 | if (ret < 0) { |
| 1729 | netdev_warn(dev->net, "Error reading PHY_INT_MASK\n"); |
| 1730 | return ret; |
| 1731 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1732 | |
| 1733 | ret |= mask; |
| 1734 | |
| 1735 | smsc75xx_mdio_write_nopm(dev->net, mii->phy_id, PHY_INT_MASK, ret); |
| 1736 | |
| 1737 | return 0; |
| 1738 | } |
| 1739 | |
| 1740 | static int smsc75xx_link_ok_nopm(struct usbnet *dev) |
| 1741 | { |
| 1742 | struct mii_if_info *mii = &dev->mii; |
| 1743 | int ret; |
| 1744 | |
| 1745 | /* first, a dummy read, needed to latch some MII phys */ |
| 1746 | ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1747 | if (ret < 0) { |
| 1748 | netdev_warn(dev->net, "Error reading MII_BMSR\n"); |
| 1749 | return ret; |
| 1750 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1751 | |
| 1752 | ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, MII_BMSR); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1753 | if (ret < 0) { |
| 1754 | netdev_warn(dev->net, "Error reading MII_BMSR\n"); |
| 1755 | return ret; |
| 1756 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1757 | |
| 1758 | return !!(ret & BMSR_LSTATUS); |
| 1759 | } |
| 1760 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1761 | static int smsc75xx_autosuspend(struct usbnet *dev, u32 link_up) |
| 1762 | { |
| 1763 | int ret; |
| 1764 | |
| 1765 | if (!netif_running(dev->net)) { |
| 1766 | /* interface is ifconfig down so fully power down hw */ |
| 1767 | netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n"); |
| 1768 | return smsc75xx_enter_suspend2(dev); |
| 1769 | } |
| 1770 | |
| 1771 | if (!link_up) { |
| 1772 | /* link is down so enter EDPD mode */ |
| 1773 | netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n"); |
| 1774 | |
| 1775 | /* enable PHY wakeup events for if cable is attached */ |
| 1776 | ret = smsc75xx_enable_phy_wakeup_interrupts(dev, |
| 1777 | PHY_INT_MASK_ANEG_COMP); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1778 | if (ret < 0) { |
| 1779 | netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); |
| 1780 | return ret; |
| 1781 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1782 | |
| 1783 | netdev_info(dev->net, "entering SUSPEND1 mode\n"); |
| 1784 | return smsc75xx_enter_suspend1(dev); |
| 1785 | } |
| 1786 | |
| 1787 | /* enable PHY wakeup events so we remote wakeup if cable is pulled */ |
| 1788 | ret = smsc75xx_enable_phy_wakeup_interrupts(dev, |
| 1789 | PHY_INT_MASK_LINK_DOWN); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1790 | if (ret < 0) { |
| 1791 | netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); |
| 1792 | return ret; |
| 1793 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1794 | |
| 1795 | netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n"); |
| 1796 | return smsc75xx_enter_suspend3(dev); |
| 1797 | } |
| 1798 | |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 1799 | static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message) |
| 1800 | { |
| 1801 | struct usbnet *dev = usb_get_intfdata(intf); |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1802 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1803 | u32 val, link_up; |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 1804 | int ret; |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 1805 | |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 1806 | ret = usbnet_suspend(intf, message); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1807 | if (ret < 0) { |
| 1808 | netdev_warn(dev->net, "usbnet_suspend error\n"); |
| 1809 | return ret; |
| 1810 | } |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 1811 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1812 | if (pdata->suspend_flags) { |
| 1813 | netdev_warn(dev->net, "error during last resume\n"); |
| 1814 | pdata->suspend_flags = 0; |
| 1815 | } |
| 1816 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1817 | /* determine if link is up using only _nopm functions */ |
| 1818 | link_up = smsc75xx_link_ok_nopm(dev); |
| 1819 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 1820 | if (message.event == PM_EVENT_AUTO_SUSPEND) { |
| 1821 | ret = smsc75xx_autosuspend(dev, link_up); |
| 1822 | goto done; |
| 1823 | } |
| 1824 | |
| 1825 | /* if we get this far we're not autosuspending */ |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1826 | /* if no wol options set, or if link is down and we're not waking on |
| 1827 | * PHY activity, enter lowest power SUSPEND2 mode |
| 1828 | */ |
| 1829 | if (!(pdata->wolopts & SUPPORTED_WAKE) || |
| 1830 | !(link_up || (pdata->wolopts & WAKE_PHY))) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1831 | netdev_info(dev->net, "entering SUSPEND2 mode\n"); |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1832 | |
| 1833 | /* disable energy detect (link up) & wake up events */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1834 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1835 | if (ret < 0) { |
| 1836 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 1837 | goto done; |
| 1838 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1839 | |
| 1840 | val &= ~(WUCSR_MPEN | WUCSR_WUEN); |
| 1841 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1842 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1843 | if (ret < 0) { |
| 1844 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 1845 | goto done; |
| 1846 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1847 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1848 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1849 | if (ret < 0) { |
| 1850 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 1851 | goto done; |
| 1852 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1853 | |
| 1854 | val &= ~(PMT_CTL_ED_EN | PMT_CTL_WOL_EN); |
| 1855 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1856 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1857 | if (ret < 0) { |
| 1858 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 1859 | goto done; |
| 1860 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1861 | |
Steve Glendinning | eacdd6c | 2012-11-28 05:59:48 +0000 | [diff] [blame] | 1862 | ret = smsc75xx_enter_suspend2(dev); |
| 1863 | goto done; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1864 | } |
| 1865 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1866 | if (pdata->wolopts & WAKE_PHY) { |
| 1867 | ret = smsc75xx_enable_phy_wakeup_interrupts(dev, |
| 1868 | (PHY_INT_MASK_ANEG_COMP | PHY_INT_MASK_LINK_DOWN)); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1869 | if (ret < 0) { |
| 1870 | netdev_warn(dev->net, "error enabling PHY wakeup ints\n"); |
| 1871 | goto done; |
| 1872 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1873 | |
| 1874 | /* if link is down then configure EDPD and enter SUSPEND1, |
| 1875 | * otherwise enter SUSPEND0 below |
| 1876 | */ |
| 1877 | if (!link_up) { |
| 1878 | struct mii_if_info *mii = &dev->mii; |
| 1879 | netdev_info(dev->net, "entering SUSPEND1 mode\n"); |
| 1880 | |
| 1881 | /* enable energy detect power-down mode */ |
| 1882 | ret = smsc75xx_mdio_read_nopm(dev->net, mii->phy_id, |
| 1883 | PHY_MODE_CTRL_STS); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1884 | if (ret < 0) { |
| 1885 | netdev_warn(dev->net, "Error reading PHY_MODE_CTRL_STS\n"); |
| 1886 | goto done; |
| 1887 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1888 | |
| 1889 | ret |= MODE_CTRL_STS_EDPWRDOWN; |
| 1890 | |
| 1891 | smsc75xx_mdio_write_nopm(dev->net, mii->phy_id, |
| 1892 | PHY_MODE_CTRL_STS, ret); |
| 1893 | |
| 1894 | /* enter SUSPEND1 mode */ |
Steve Glendinning | eacdd6c | 2012-11-28 05:59:48 +0000 | [diff] [blame] | 1895 | ret = smsc75xx_enter_suspend1(dev); |
| 1896 | goto done; |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1897 | } |
| 1898 | } |
| 1899 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1900 | if (pdata->wolopts & (WAKE_MCAST | WAKE_ARP)) { |
| 1901 | int i, filter = 0; |
| 1902 | |
| 1903 | /* disable all filters */ |
| 1904 | for (i = 0; i < WUF_NUM; i++) { |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1905 | ret = smsc75xx_write_reg_nopm(dev, WUF_CFGX + i * 4, 0); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1906 | if (ret < 0) { |
| 1907 | netdev_warn(dev->net, "Error writing WUF_CFGX\n"); |
| 1908 | goto done; |
| 1909 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1910 | } |
| 1911 | |
| 1912 | if (pdata->wolopts & WAKE_MCAST) { |
| 1913 | const u8 mcast[] = {0x01, 0x00, 0x5E}; |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1914 | netdev_info(dev->net, "enabling multicast detection\n"); |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1915 | |
| 1916 | val = WUF_CFGX_EN | WUF_CFGX_ATYPE_MULTICAST |
| 1917 | | smsc_crc(mcast, 3); |
| 1918 | ret = smsc75xx_write_wuff(dev, filter++, val, 0x0007); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1919 | if (ret < 0) { |
| 1920 | netdev_warn(dev->net, "Error writing wakeup filter\n"); |
| 1921 | goto done; |
| 1922 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1923 | } |
| 1924 | |
| 1925 | if (pdata->wolopts & WAKE_ARP) { |
| 1926 | const u8 arp[] = {0x08, 0x06}; |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1927 | netdev_info(dev->net, "enabling ARP detection\n"); |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1928 | |
| 1929 | val = WUF_CFGX_EN | WUF_CFGX_ATYPE_ALL | (0x0C << 16) |
| 1930 | | smsc_crc(arp, 2); |
| 1931 | ret = smsc75xx_write_wuff(dev, filter++, val, 0x0003); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1932 | if (ret < 0) { |
| 1933 | netdev_warn(dev->net, "Error writing wakeup filter\n"); |
| 1934 | goto done; |
| 1935 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1936 | } |
| 1937 | |
| 1938 | /* clear any pending pattern match packet status */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1939 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1940 | if (ret < 0) { |
| 1941 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 1942 | goto done; |
| 1943 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1944 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1945 | val |= WUCSR_WUFR; |
| 1946 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1947 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1948 | if (ret < 0) { |
| 1949 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 1950 | goto done; |
| 1951 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1952 | |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1953 | netdev_info(dev->net, "enabling packet match detection\n"); |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1954 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1955 | if (ret < 0) { |
| 1956 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 1957 | goto done; |
| 1958 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1959 | |
| 1960 | val |= WUCSR_WUEN; |
| 1961 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1962 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1963 | if (ret < 0) { |
| 1964 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 1965 | goto done; |
| 1966 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1967 | } else { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 1968 | netdev_info(dev->net, "disabling packet match detection\n"); |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1969 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1970 | if (ret < 0) { |
| 1971 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 1972 | goto done; |
| 1973 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1974 | |
| 1975 | val &= ~WUCSR_WUEN; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1976 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1977 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1978 | if (ret < 0) { |
| 1979 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 1980 | goto done; |
| 1981 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1982 | } |
| 1983 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1984 | /* disable magic, bcast & unicast wakeup sources */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1985 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1986 | if (ret < 0) { |
| 1987 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 1988 | goto done; |
| 1989 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1990 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 1991 | val &= ~(WUCSR_MPEN | WUCSR_BCST_EN | WUCSR_PFDA_EN); |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1992 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 1993 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 1994 | if (ret < 0) { |
| 1995 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 1996 | goto done; |
| 1997 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 1998 | |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 1999 | if (pdata->wolopts & WAKE_PHY) { |
| 2000 | netdev_info(dev->net, "enabling PHY wakeup\n"); |
| 2001 | |
| 2002 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2003 | if (ret < 0) { |
| 2004 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 2005 | goto done; |
| 2006 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 2007 | |
| 2008 | /* clear wol status, enable energy detection */ |
| 2009 | val &= ~PMT_CTL_WUPS; |
| 2010 | val |= (PMT_CTL_WUPS_ED | PMT_CTL_ED_EN); |
| 2011 | |
| 2012 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2013 | if (ret < 0) { |
| 2014 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 2015 | goto done; |
| 2016 | } |
Steve Glendinning | f329ccd | 2012-11-28 05:59:47 +0000 | [diff] [blame] | 2017 | } |
| 2018 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2019 | if (pdata->wolopts & WAKE_MAGIC) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2020 | netdev_info(dev->net, "enabling magic packet wakeup\n"); |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2021 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2022 | if (ret < 0) { |
| 2023 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 2024 | goto done; |
| 2025 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2026 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2027 | /* clear any pending magic packet status */ |
| 2028 | val |= WUCSR_MPR | WUCSR_MPEN; |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2029 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2030 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2031 | if (ret < 0) { |
| 2032 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 2033 | goto done; |
| 2034 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2035 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2036 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2037 | if (pdata->wolopts & WAKE_BCAST) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2038 | netdev_info(dev->net, "enabling broadcast detection\n"); |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2039 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2040 | if (ret < 0) { |
| 2041 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 2042 | goto done; |
| 2043 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2044 | |
| 2045 | val |= WUCSR_BCAST_FR | WUCSR_BCST_EN; |
| 2046 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2047 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2048 | if (ret < 0) { |
| 2049 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 2050 | goto done; |
| 2051 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2052 | } |
| 2053 | |
| 2054 | if (pdata->wolopts & WAKE_UCAST) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2055 | netdev_info(dev->net, "enabling unicast detection\n"); |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2056 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2057 | if (ret < 0) { |
| 2058 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 2059 | goto done; |
| 2060 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2061 | |
| 2062 | val |= WUCSR_WUFR | WUCSR_PFDA_EN; |
| 2063 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2064 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2065 | if (ret < 0) { |
| 2066 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 2067 | goto done; |
| 2068 | } |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2069 | } |
| 2070 | |
| 2071 | /* enable receiver to enable frame reception */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2072 | ret = smsc75xx_read_reg_nopm(dev, MAC_RX, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2073 | if (ret < 0) { |
| 2074 | netdev_warn(dev->net, "Failed to read MAC_RX: %d\n", ret); |
| 2075 | goto done; |
| 2076 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2077 | |
| 2078 | val |= MAC_RX_RXEN; |
| 2079 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2080 | ret = smsc75xx_write_reg_nopm(dev, MAC_RX, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2081 | if (ret < 0) { |
| 2082 | netdev_warn(dev->net, "Failed to write MAC_RX: %d\n", ret); |
| 2083 | goto done; |
| 2084 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2085 | |
| 2086 | /* some wol options are enabled, so enter SUSPEND0 */ |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2087 | netdev_info(dev->net, "entering SUSPEND0 mode\n"); |
Steve Glendinning | eacdd6c | 2012-11-28 05:59:48 +0000 | [diff] [blame] | 2088 | ret = smsc75xx_enter_suspend0(dev); |
| 2089 | |
| 2090 | done: |
Ming Lei | 5410a47 | 2013-03-15 12:08:59 +0800 | [diff] [blame] | 2091 | /* |
| 2092 | * TODO: resume() might need to handle the suspend failure |
| 2093 | * in system sleep |
| 2094 | */ |
| 2095 | if (ret && PMSG_IS_AUTO(message)) |
Steve Glendinning | eacdd6c | 2012-11-28 05:59:48 +0000 | [diff] [blame] | 2096 | usbnet_resume(intf); |
| 2097 | return ret; |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2098 | } |
| 2099 | |
| 2100 | static int smsc75xx_resume(struct usb_interface *intf) |
| 2101 | { |
| 2102 | struct usbnet *dev = usb_get_intfdata(intf); |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2103 | struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]); |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2104 | u8 suspend_flags = pdata->suspend_flags; |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2105 | int ret; |
| 2106 | u32 val; |
| 2107 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2108 | netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags); |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2109 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2110 | /* do this first to ensure it's cleared even in error case */ |
| 2111 | pdata->suspend_flags = 0; |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2112 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2113 | if (suspend_flags & SUSPEND_ALLMODES) { |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2114 | /* Disable wakeup sources */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2115 | ret = smsc75xx_read_reg_nopm(dev, WUCSR, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2116 | if (ret < 0) { |
| 2117 | netdev_warn(dev->net, "Error reading WUCSR\n"); |
| 2118 | return ret; |
| 2119 | } |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2120 | |
Steve Glendinning | 899a391 | 2012-10-30 07:46:32 +0000 | [diff] [blame] | 2121 | val &= ~(WUCSR_WUEN | WUCSR_MPEN | WUCSR_PFDA_EN |
| 2122 | | WUCSR_BCST_EN); |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2123 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2124 | ret = smsc75xx_write_reg_nopm(dev, WUCSR, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2125 | if (ret < 0) { |
| 2126 | netdev_warn(dev->net, "Error writing WUCSR\n"); |
| 2127 | return ret; |
| 2128 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2129 | |
| 2130 | /* clear wake-up status */ |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2131 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2132 | if (ret < 0) { |
| 2133 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 2134 | return ret; |
| 2135 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2136 | |
| 2137 | val &= ~PMT_CTL_WOL_EN; |
| 2138 | val |= PMT_CTL_WUPS; |
| 2139 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2140 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2141 | if (ret < 0) { |
| 2142 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 2143 | return ret; |
| 2144 | } |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2145 | } |
| 2146 | |
| 2147 | if (suspend_flags & SUSPEND_SUSPEND2) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2148 | netdev_info(dev->net, "resuming from SUSPEND2\n"); |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2149 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2150 | ret = smsc75xx_read_reg_nopm(dev, PMT_CTL, &val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2151 | if (ret < 0) { |
| 2152 | netdev_warn(dev->net, "Error reading PMT_CTL\n"); |
| 2153 | return ret; |
| 2154 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2155 | |
| 2156 | val |= PMT_CTL_PHY_PWRUP; |
| 2157 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2158 | ret = smsc75xx_write_reg_nopm(dev, PMT_CTL, val); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2159 | if (ret < 0) { |
| 2160 | netdev_warn(dev->net, "Error writing PMT_CTL\n"); |
| 2161 | return ret; |
| 2162 | } |
Steve Glendinning | 6c63650 | 2012-09-28 00:57:53 +0000 | [diff] [blame] | 2163 | } |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2164 | |
Ming Lei | 47bbea4 | 2012-11-06 04:53:05 +0000 | [diff] [blame] | 2165 | ret = smsc75xx_wait_ready(dev, 1); |
Steve Glendinning | e3c678e | 2012-11-30 04:52:44 +0000 | [diff] [blame] | 2166 | if (ret < 0) { |
| 2167 | netdev_warn(dev->net, "device not ready in smsc75xx_resume\n"); |
| 2168 | return ret; |
| 2169 | } |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2170 | |
| 2171 | return usbnet_resume(intf); |
| 2172 | } |
| 2173 | |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 2174 | static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb, |
| 2175 | u32 rx_cmd_a, u32 rx_cmd_b) |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2176 | { |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 2177 | if (!(dev->net->features & NETIF_F_RXCSUM) || |
| 2178 | unlikely(rx_cmd_a & RX_CMD_A_LCSM)) { |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2179 | skb->ip_summed = CHECKSUM_NONE; |
| 2180 | } else { |
| 2181 | skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT)); |
| 2182 | skb->ip_summed = CHECKSUM_COMPLETE; |
| 2183 | } |
| 2184 | } |
| 2185 | |
| 2186 | static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) |
| 2187 | { |
Emil Goode | eb85569 | 2014-02-13 17:50:19 +0100 | [diff] [blame] | 2188 | /* This check is no longer done by usbnet */ |
| 2189 | if (skb->len < dev->net->hard_header_len) |
| 2190 | return 0; |
| 2191 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2192 | while (skb->len > 0) { |
| 2193 | u32 rx_cmd_a, rx_cmd_b, align_count, size; |
| 2194 | struct sk_buff *ax_skb; |
| 2195 | unsigned char *packet; |
| 2196 | |
| 2197 | memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a)); |
| 2198 | le32_to_cpus(&rx_cmd_a); |
| 2199 | skb_pull(skb, 4); |
| 2200 | |
| 2201 | memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b)); |
| 2202 | le32_to_cpus(&rx_cmd_b); |
Nico Erfurth | ea1649d | 2011-11-08 07:30:40 +0000 | [diff] [blame] | 2203 | skb_pull(skb, 4 + RXW_PADDING); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2204 | |
| 2205 | packet = skb->data; |
| 2206 | |
| 2207 | /* get the packet length */ |
Nico Erfurth | ea1649d | 2011-11-08 07:30:40 +0000 | [diff] [blame] | 2208 | size = (rx_cmd_a & RX_CMD_A_LEN) - RXW_PADDING; |
| 2209 | align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2210 | |
| 2211 | if (unlikely(rx_cmd_a & RX_CMD_A_RED)) { |
| 2212 | netif_dbg(dev, rx_err, dev->net, |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2213 | "Error rx_cmd_a=0x%08x\n", rx_cmd_a); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2214 | dev->net->stats.rx_errors++; |
| 2215 | dev->net->stats.rx_dropped++; |
| 2216 | |
| 2217 | if (rx_cmd_a & RX_CMD_A_FCS) |
| 2218 | dev->net->stats.rx_crc_errors++; |
| 2219 | else if (rx_cmd_a & (RX_CMD_A_LONG | RX_CMD_A_RUNT)) |
| 2220 | dev->net->stats.rx_frame_errors++; |
| 2221 | } else { |
Steve Glendinning | 4c51e53 | 2013-03-28 02:34:41 +0000 | [diff] [blame] | 2222 | /* MAX_SINGLE_PACKET_SIZE + 4(CRC) + 2(COE) + 4(Vlan) */ |
| 2223 | if (unlikely(size > (MAX_SINGLE_PACKET_SIZE + ETH_HLEN + 12))) { |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2224 | netif_dbg(dev, rx_err, dev->net, |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2225 | "size err rx_cmd_a=0x%08x\n", |
| 2226 | rx_cmd_a); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2227 | return 0; |
| 2228 | } |
| 2229 | |
| 2230 | /* last frame in this batch */ |
| 2231 | if (skb->len == size) { |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 2232 | smsc75xx_rx_csum_offload(dev, skb, rx_cmd_a, |
| 2233 | rx_cmd_b); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2234 | |
| 2235 | skb_trim(skb, skb->len - 4); /* remove fcs */ |
| 2236 | skb->truesize = size + sizeof(struct sk_buff); |
| 2237 | |
| 2238 | return 1; |
| 2239 | } |
| 2240 | |
| 2241 | ax_skb = skb_clone(skb, GFP_ATOMIC); |
| 2242 | if (unlikely(!ax_skb)) { |
Joe Perches | 1e1d741 | 2012-11-24 01:27:49 +0000 | [diff] [blame] | 2243 | netdev_warn(dev->net, "Error allocating skb\n"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2244 | return 0; |
| 2245 | } |
| 2246 | |
| 2247 | ax_skb->len = size; |
| 2248 | ax_skb->data = packet; |
| 2249 | skb_set_tail_pointer(ax_skb, size); |
| 2250 | |
Michał Mirosław | 78e47fe | 2011-04-01 20:56:23 -0700 | [diff] [blame] | 2251 | smsc75xx_rx_csum_offload(dev, ax_skb, rx_cmd_a, |
| 2252 | rx_cmd_b); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2253 | |
| 2254 | skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */ |
| 2255 | ax_skb->truesize = size + sizeof(struct sk_buff); |
| 2256 | |
| 2257 | usbnet_skb_return(dev, ax_skb); |
| 2258 | } |
| 2259 | |
| 2260 | skb_pull(skb, size); |
| 2261 | |
| 2262 | /* padding bytes before the next frame starts */ |
| 2263 | if (skb->len) |
| 2264 | skb_pull(skb, align_count); |
| 2265 | } |
| 2266 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2267 | return 1; |
| 2268 | } |
| 2269 | |
| 2270 | static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev, |
| 2271 | struct sk_buff *skb, gfp_t flags) |
| 2272 | { |
| 2273 | u32 tx_cmd_a, tx_cmd_b; |
| 2274 | |
Eric Dumazet | 7c50154 | 2017-04-19 09:59:21 -0700 | [diff] [blame] | 2275 | if (skb_cow_head(skb, SMSC75XX_TX_OVERHEAD)) { |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2276 | dev_kfree_skb_any(skb); |
Eric Dumazet | 7c50154 | 2017-04-19 09:59:21 -0700 | [diff] [blame] | 2277 | return NULL; |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2278 | } |
| 2279 | |
| 2280 | tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS; |
| 2281 | |
| 2282 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
| 2283 | tx_cmd_a |= TX_CMD_A_IPE | TX_CMD_A_TPE; |
| 2284 | |
| 2285 | if (skb_is_gso(skb)) { |
| 2286 | u16 mss = max(skb_shinfo(skb)->gso_size, TX_MSS_MIN); |
| 2287 | tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT) & TX_CMD_B_MSS; |
| 2288 | |
| 2289 | tx_cmd_a |= TX_CMD_A_LSO; |
| 2290 | } else { |
| 2291 | tx_cmd_b = 0; |
| 2292 | } |
| 2293 | |
| 2294 | skb_push(skb, 4); |
| 2295 | cpu_to_le32s(&tx_cmd_b); |
| 2296 | memcpy(skb->data, &tx_cmd_b, 4); |
| 2297 | |
| 2298 | skb_push(skb, 4); |
| 2299 | cpu_to_le32s(&tx_cmd_a); |
| 2300 | memcpy(skb->data, &tx_cmd_a, 4); |
| 2301 | |
| 2302 | return skb; |
| 2303 | } |
| 2304 | |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2305 | static int smsc75xx_manage_power(struct usbnet *dev, int on) |
| 2306 | { |
| 2307 | dev->intf->needs_remote_wakeup = on; |
| 2308 | return 0; |
| 2309 | } |
| 2310 | |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2311 | static const struct driver_info smsc75xx_info = { |
| 2312 | .description = "smsc75xx USB 2.0 Gigabit Ethernet", |
| 2313 | .bind = smsc75xx_bind, |
| 2314 | .unbind = smsc75xx_unbind, |
| 2315 | .link_reset = smsc75xx_link_reset, |
| 2316 | .reset = smsc75xx_reset, |
| 2317 | .rx_fixup = smsc75xx_rx_fixup, |
| 2318 | .tx_fixup = smsc75xx_tx_fixup, |
| 2319 | .status = smsc75xx_status, |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2320 | .manage_power = smsc75xx_manage_power, |
Steve Glendinning | 7bdd305 | 2012-04-30 07:56:50 +0000 | [diff] [blame] | 2321 | .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR, |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2322 | }; |
| 2323 | |
| 2324 | static const struct usb_device_id products[] = { |
| 2325 | { |
| 2326 | /* SMSC7500 USB Gigabit Ethernet Device */ |
| 2327 | USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7500), |
| 2328 | .driver_info = (unsigned long) &smsc75xx_info, |
| 2329 | }, |
| 2330 | { |
| 2331 | /* SMSC7500 USB Gigabit Ethernet Device */ |
| 2332 | USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7505), |
| 2333 | .driver_info = (unsigned long) &smsc75xx_info, |
| 2334 | }, |
| 2335 | { }, /* END */ |
| 2336 | }; |
| 2337 | MODULE_DEVICE_TABLE(usb, products); |
| 2338 | |
| 2339 | static struct usb_driver smsc75xx_driver = { |
| 2340 | .name = SMSC_CHIPNAME, |
| 2341 | .id_table = products, |
| 2342 | .probe = usbnet_probe, |
Steve Glendinning | 16c79a0 | 2012-09-28 00:57:52 +0000 | [diff] [blame] | 2343 | .suspend = smsc75xx_suspend, |
| 2344 | .resume = smsc75xx_resume, |
| 2345 | .reset_resume = smsc75xx_resume, |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2346 | .disconnect = usbnet_disconnect, |
Sarah Sharp | e1f12eb | 2012-04-23 10:08:51 -0700 | [diff] [blame] | 2347 | .disable_hub_initiated_lpm = 1, |
Steve Glendinning | b4cdea9 | 2012-11-28 05:59:49 +0000 | [diff] [blame] | 2348 | .supports_autosuspend = 1, |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2349 | }; |
| 2350 | |
Greg Kroah-Hartman | d632eb1 | 2011-11-18 09:44:20 -0800 | [diff] [blame] | 2351 | module_usb_driver(smsc75xx_driver); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2352 | |
| 2353 | MODULE_AUTHOR("Nancy Lin"); |
Steve Glendinning | 90b24cf | 2012-04-16 12:13:29 +0100 | [diff] [blame] | 2354 | MODULE_AUTHOR("Steve Glendinning <steve.glendinning@shawell.net>"); |
Steve Glendinning | d0cad87 | 2010-03-16 08:46:46 +0000 | [diff] [blame] | 2355 | MODULE_DESCRIPTION("SMSC75XX USB 2.0 Gigabit Ethernet Devices"); |
| 2356 | MODULE_LICENSE("GPL"); |