1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * ASIX AX8817X based USB 2.0 Ethernet Devices
4 * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
5 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
6 * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
7 * Copyright (c) 2002-2003 TiVo Inc.
13 // #define DEBUG // error path messages, extra info
14 // #define VERBOSE // more; success messages
16 #include <linux/module.h>
17 #include <linux/kmod.h>
18 #include <linux/netdevice.h>
19 #include <linux/etherdevice.h>
20 #include <linux/ethtool.h>
21 #include <linux/workqueue.h>
22 #include <linux/mii.h>
23 #include <linux/usb.h>
24 #include <linux/crc32.h>
25 #include <linux/usb/usbnet.h>
26 #include <linux/slab.h>
27 #include <linux/if_vlan.h>
28 #include <linux/phy.h>
29 #include <net/selftests.h>
31 #define DRIVER_VERSION "22-Dec-2011"
32 #define DRIVER_NAME "asix"
34 /* ASIX AX8817X based USB 2.0 Ethernet Devices */
36 #define AX_CMD_SET_SW_MII 0x06
37 #define AX_CMD_READ_MII_REG 0x07
38 #define AX_CMD_WRITE_MII_REG 0x08
39 #define AX_CMD_STATMNGSTS_REG 0x09
40 #define AX_CMD_SET_HW_MII 0x0a
41 #define AX_CMD_READ_EEPROM 0x0b
42 #define AX_CMD_WRITE_EEPROM 0x0c
43 #define AX_CMD_WRITE_ENABLE 0x0d
44 #define AX_CMD_WRITE_DISABLE 0x0e
45 #define AX_CMD_READ_RX_CTL 0x0f
46 #define AX_CMD_WRITE_RX_CTL 0x10
47 #define AX_CMD_READ_IPG012 0x11
48 #define AX_CMD_WRITE_IPG0 0x12
49 #define AX_CMD_WRITE_IPG1 0x13
50 #define AX_CMD_READ_NODE_ID 0x13
51 #define AX_CMD_WRITE_NODE_ID 0x14
52 #define AX_CMD_WRITE_IPG2 0x14
53 #define AX_CMD_WRITE_MULTI_FILTER 0x16
54 #define AX88172_CMD_READ_NODE_ID 0x17
55 #define AX_CMD_READ_PHY_ID 0x19
56 #define AX_CMD_READ_MEDIUM_STATUS 0x1a
57 #define AX_CMD_WRITE_MEDIUM_MODE 0x1b
58 #define AX_CMD_READ_MONITOR_MODE 0x1c
59 #define AX_CMD_WRITE_MONITOR_MODE 0x1d
60 #define AX_CMD_READ_GPIOS 0x1e
61 #define AX_CMD_WRITE_GPIOS 0x1f
62 #define AX_CMD_SW_RESET 0x20
63 #define AX_CMD_SW_PHY_STATUS 0x21
64 #define AX_CMD_SW_PHY_SELECT 0x22
65 #define AX_QCTCTRL 0x2A
67 #define AX_CHIPCODE_MASK 0x70
68 #define AX_AX88772_CHIPCODE 0x00
69 #define AX_AX88772A_CHIPCODE 0x10
70 #define AX_AX88772B_CHIPCODE 0x20
71 #define AX_HOST_EN 0x01
73 #define AX_PHYSEL_PSEL 0x01
74 #define AX_PHYSEL_SSMII 0
75 #define AX_PHYSEL_SSEN 0x10
77 #define AX_PHY_SELECT_MASK (BIT(3) | BIT(2))
78 #define AX_PHY_SELECT_INTERNAL 0
79 #define AX_PHY_SELECT_EXTERNAL BIT(2)
81 #define AX_MONITOR_MODE 0x01
82 #define AX_MONITOR_LINK 0x02
83 #define AX_MONITOR_MAGIC 0x04
84 #define AX_MONITOR_HSFS 0x10
86 /* AX88172 Medium Status Register values */
87 #define AX88172_MEDIUM_FD 0x02
88 #define AX88172_MEDIUM_TX 0x04
89 #define AX88172_MEDIUM_FC 0x10
90 #define AX88172_MEDIUM_DEFAULT \
91 ( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC )
93 #define AX_MCAST_FILTER_SIZE 8
94 #define AX_MAX_MCAST 64
96 #define AX_SWRESET_CLEAR 0x00
97 #define AX_SWRESET_RR 0x01
98 #define AX_SWRESET_RT 0x02
99 #define AX_SWRESET_PRTE 0x04
100 #define AX_SWRESET_PRL 0x08
101 #define AX_SWRESET_BZ 0x10
102 #define AX_SWRESET_IPRL 0x20
103 #define AX_SWRESET_IPPD 0x40
105 #define AX88772_IPG0_DEFAULT 0x15
106 #define AX88772_IPG1_DEFAULT 0x0c
107 #define AX88772_IPG2_DEFAULT 0x12
109 /* AX88772 & AX88178 Medium Mode Register */
110 #define AX_MEDIUM_PF 0x0080
111 #define AX_MEDIUM_JFE 0x0040
112 #define AX_MEDIUM_TFC 0x0020
113 #define AX_MEDIUM_RFC 0x0010
114 #define AX_MEDIUM_ENCK 0x0008
115 #define AX_MEDIUM_AC 0x0004
116 #define AX_MEDIUM_FD 0x0002
117 #define AX_MEDIUM_GM 0x0001
118 #define AX_MEDIUM_SM 0x1000
119 #define AX_MEDIUM_SBP 0x0800
120 #define AX_MEDIUM_PS 0x0200
121 #define AX_MEDIUM_RE 0x0100
123 #define AX88178_MEDIUM_DEFAULT \
124 (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \
125 AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \
128 #define AX88772_MEDIUM_DEFAULT \
129 (AX_MEDIUM_FD | AX_MEDIUM_RFC | \
130 AX_MEDIUM_TFC | AX_MEDIUM_PS | \
131 AX_MEDIUM_AC | AX_MEDIUM_RE)
133 /* AX88772 & AX88178 RX_CTL values */
134 #define AX_RX_CTL_SO 0x0080
135 #define AX_RX_CTL_AP 0x0020
136 #define AX_RX_CTL_AM 0x0010
137 #define AX_RX_CTL_AB 0x0008
138 #define AX_RX_CTL_SEP 0x0004
139 #define AX_RX_CTL_AMALL 0x0002
140 #define AX_RX_CTL_PRO 0x0001
141 #define AX_RX_CTL_MFB_2048 0x0000
142 #define AX_RX_CTL_MFB_4096 0x0100
143 #define AX_RX_CTL_MFB_8192 0x0200
144 #define AX_RX_CTL_MFB_16384 0x0300
146 #define AX_DEFAULT_RX_CTL (AX_RX_CTL_SO | AX_RX_CTL_AB)
148 /* GPIO 0 .. 2 toggles */
149 #define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */
150 #define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */
151 #define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */
152 #define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */
153 #define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */
154 #define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */
155 #define AX_GPIO_RESERVED 0x40 /* Reserved */
156 #define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */
158 #define AX_EEPROM_MAGIC 0xdeadbeef
159 #define AX_EEPROM_LEN 0x200
161 #define AX_EMBD_PHY_ADDR 0x10
163 /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
165 u8 multi_filter[AX_MCAST_FILTER_SIZE];
166 u8 mac_addr[ETH_ALEN];
172 struct asix_rx_fixup_info {
173 struct sk_buff *ax_skb;
179 struct asix_common_private {
180 void (*resume)(struct usbnet *dev);
181 void (*suspend)(struct usbnet *dev);
182 int (*reset)(struct usbnet *dev, int in_pm);
183 u16 presvd_phy_advertise;
185 struct asix_rx_fixup_info rx_fixup_info;
186 struct mii_bus *mdio;
187 struct phy_device *phydev;
188 struct phy_device *phydev_int;
194 extern const struct driver_info ax88172a_info;
196 /* ASIX specific flags */
197 #define FLAG_EEPROM_MAC (1UL << 0) /* init device MAC from eeprom */
199 int __must_check asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
200 u16 size, void *data, int in_pm);
202 int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
203 u16 size, void *data, int in_pm);
205 void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
206 u16 index, u16 size, void *data);
208 int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
209 struct asix_rx_fixup_info *rx);
210 int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb);
211 void asix_rx_fixup_common_free(struct asix_common_private *dp);
213 struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
216 int asix_set_sw_mii(struct usbnet *dev, int in_pm);
217 int asix_set_hw_mii(struct usbnet *dev, int in_pm);
219 int asix_read_phy_addr(struct usbnet *dev, bool internal);
221 int asix_sw_reset(struct usbnet *dev, u8 flags, int in_pm);
223 u16 asix_read_rx_ctl(struct usbnet *dev, int in_pm);
224 int asix_write_rx_ctl(struct usbnet *dev, u16 mode, int in_pm);
226 u16 asix_read_medium_status(struct usbnet *dev, int in_pm);
227 int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm);
228 void asix_adjust_link(struct net_device *netdev);
230 int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm);
232 void asix_set_multicast(struct net_device *net);
234 int asix_mdio_read(struct net_device *netdev, int phy_id, int loc);
235 void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val);
237 int asix_mdio_bus_read(struct mii_bus *bus, int phy_id, int regnum);
238 int asix_mdio_bus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val);
240 int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc);
241 void asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc,
244 void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
245 int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
247 int asix_get_eeprom_len(struct net_device *net);
248 int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
250 int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
253 void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info);
255 int asix_set_mac_address(struct net_device *net, void *p);