1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1997, 1998, 1999, 2000-2003
5 *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD$
35 */
36
37/*
38 * Definitions for the ASIX Electronics AX88172, AX88178
39 * and AX88772 to ethernet controllers.
40 */
41
42/*
43 * Vendor specific commands.  ASIX conveniently doesn't document the 'set
44 * NODEID' command in their datasheet (thanks a lot guys).
45 * To make handling these commands easier, I added some extra data which is
46 * decided by the axe_cmd() routine. Commands are encoded in 16 bits, with
47 * the format: LDCC. L and D are both nibbles in the high byte.  L represents
48 * the data length (0 to 15) and D represents the direction (0 for vendor read,
49 * 1 for vendor write).  CC is the command byte, as specified in the manual.
50 */
51
52#define	AXE_CMD_IS_WRITE(x)	(((x) & 0x0F00) >> 8)
53#define	AXE_CMD_LEN(x)		(((x) & 0xF000) >> 12)
54#define	AXE_CMD_CMD(x)		((x) & 0x00FF)
55
56#define	AXE_172_CMD_READ_RXTX_SRAM		0x2002
57#define	AXE_182_CMD_READ_RXTX_SRAM		0x8002
58#define	AXE_172_CMD_WRITE_RX_SRAM		0x0103
59#define	AXE_182_CMD_WRITE_RXTX_SRAM		0x8103
60#define	AXE_172_CMD_WRITE_TX_SRAM		0x0104
61#define	AXE_CMD_MII_OPMODE_SW			0x0106
62#define	AXE_CMD_MII_READ_REG			0x2007
63#define	AXE_CMD_MII_WRITE_REG			0x2108
64#define	AXE_CMD_MII_READ_OPMODE			0x1009
65#define	AXE_CMD_MII_OPMODE_HW			0x010A
66#define	AXE_CMD_SROM_READ			0x200B
67#define	AXE_CMD_SROM_WRITE			0x010C
68#define	AXE_CMD_SROM_WR_ENABLE			0x010D
69#define	AXE_CMD_SROM_WR_DISABLE			0x010E
70#define	AXE_CMD_RXCTL_READ			0x200F
71#define	AXE_CMD_RXCTL_WRITE			0x0110
72#define	AXE_CMD_READ_IPG012			0x3011
73#define	AXE_172_CMD_WRITE_IPG0			0x0112
74#define	AXE_178_CMD_WRITE_IPG012		0x0112
75#define	AXE_172_CMD_WRITE_IPG1			0x0113
76#define	AXE_178_CMD_READ_NODEID			0x6013
77#define	AXE_172_CMD_WRITE_IPG2			0x0114
78#define	AXE_178_CMD_WRITE_NODEID		0x6114
79#define	AXE_CMD_READ_MCAST			0x8015
80#define	AXE_CMD_WRITE_MCAST			0x8116
81#define	AXE_172_CMD_READ_NODEID			0x6017
82#define	AXE_172_CMD_WRITE_NODEID		0x6118
83
84#define	AXE_CMD_READ_PHYID			0x2019
85#define	AXE_172_CMD_READ_MEDIA			0x101A
86#define	AXE_178_CMD_READ_MEDIA			0x201A
87#define	AXE_CMD_WRITE_MEDIA			0x011B
88#define	AXE_CMD_READ_MONITOR_MODE		0x101C
89#define	AXE_CMD_WRITE_MONITOR_MODE		0x011D
90#define	AXE_CMD_READ_GPIO			0x101E
91#define	AXE_CMD_WRITE_GPIO			0x011F
92
93#define	AXE_CMD_SW_RESET_REG			0x0120
94#define	AXE_CMD_SW_PHY_STATUS			0x0021
95#define	AXE_CMD_SW_PHY_SELECT			0x0122
96
97/* AX88772A and AX88772B only. */
98#define	AXE_CMD_READ_VLAN_CTRL			0x4027
99#define	AXE_CMD_WRITE_VLAN_CTRL			0x4028
100
101#define	AXE_772B_CMD_RXCTL_WRITE_CFG		0x012A
102#define	AXE_772B_CMD_READ_RXCSUM		0x002B
103#define	AXE_772B_CMD_WRITE_RXCSUM		0x012C
104#define	AXE_772B_CMD_READ_TXCSUM		0x002D
105#define	AXE_772B_CMD_WRITE_TXCSUM		0x012E
106
107#define	AXE_SW_RESET_CLEAR			0x00
108#define	AXE_SW_RESET_RR				0x01
109#define	AXE_SW_RESET_RT				0x02
110#define	AXE_SW_RESET_PRTE			0x04
111#define	AXE_SW_RESET_PRL			0x08
112#define	AXE_SW_RESET_BZ				0x10
113#define	AXE_SW_RESET_IPRL			0x20
114#define	AXE_SW_RESET_IPPD			0x40
115
116/* AX88178 documentation says to always write this bit... */
117#define	AXE_178_RESET_MAGIC			0x40
118
119#define	AXE_178_MEDIA_GMII			0x0001
120#define	AXE_MEDIA_FULL_DUPLEX			0x0002
121#define	AXE_172_MEDIA_TX_ABORT_ALLOW		0x0004
122
123/* AX88178/88772 documentation says to always write 1 to bit 2 */
124#define	AXE_178_MEDIA_MAGIC			0x0004
125/* AX88772 documentation says to always write 0 to bit 3 */
126#define	AXE_178_MEDIA_ENCK			0x0008
127#define	AXE_172_MEDIA_FLOW_CONTROL_EN		0x0010
128#define	AXE_178_MEDIA_RXFLOW_CONTROL_EN		0x0010
129#define	AXE_178_MEDIA_TXFLOW_CONTROL_EN		0x0020
130#define	AXE_178_MEDIA_JUMBO_EN			0x0040
131#define	AXE_178_MEDIA_LTPF_ONLY			0x0080
132#define	AXE_178_MEDIA_RX_EN			0x0100
133#define	AXE_178_MEDIA_100TX			0x0200
134#define	AXE_178_MEDIA_SBP			0x0800
135#define	AXE_178_MEDIA_SUPERMAC			0x1000
136
137#define	AXE_RXCMD_PROMISC			0x0001
138#define	AXE_RXCMD_ALLMULTI			0x0002
139#define	AXE_172_RXCMD_UNICAST			0x0004
140#define	AXE_178_RXCMD_KEEP_INVALID_CRC		0x0004
141#define	AXE_RXCMD_BROADCAST			0x0008
142#define	AXE_RXCMD_MULTICAST			0x0010
143#define	AXE_RXCMD_ACCEPT_RUNT			0x0040	/* AX88772B */
144#define	AXE_RXCMD_ENABLE			0x0080
145#define	AXE_178_RXCMD_MFB_MASK			0x0300
146#define	AXE_178_RXCMD_MFB_2048			0x0000
147#define	AXE_178_RXCMD_MFB_4096			0x0100
148#define	AXE_178_RXCMD_MFB_8192			0x0200
149#define	AXE_178_RXCMD_MFB_16384			0x0300
150#define	AXE_772B_RXCMD_HDR_TYPE_0		0x0000
151#define	AXE_772B_RXCMD_HDR_TYPE_1		0x0100
152#define	AXE_772B_RXCMD_IPHDR_ALIGN		0x0200
153#define	AXE_772B_RXCMD_ADD_CHKSUM		0x0400
154#define	AXE_RXCMD_LOOPBACK			0x1000	/* AX88772A/AX88772B */
155
156#define	AXE_PHY_SEL_PRI		1
157#define	AXE_PHY_SEL_SEC		0
158#define	AXE_PHY_TYPE_MASK	0xE0
159#define	AXE_PHY_TYPE_SHIFT	5
160#define	AXE_PHY_TYPE(x)		\
161	(((x) & AXE_PHY_TYPE_MASK) >> AXE_PHY_TYPE_SHIFT)
162
163#define	PHY_TYPE_100_HOME	0	/* 10/100 or 1M HOME PHY */
164#define	PHY_TYPE_GIG		1	/* Gigabit PHY */
165#define	PHY_TYPE_SPECIAL	4	/* Special case */
166#define	PHY_TYPE_RSVD		5	/* Reserved */
167#define	PHY_TYPE_NON_SUP	7	/* Non-supported PHY */
168
169#define	AXE_PHY_NO_MASK		0x1F
170#define	AXE_PHY_NO(x)		((x) & AXE_PHY_NO_MASK)
171
172#define	AXE_772_PHY_NO_EPHY	0x10	/* Embedded 10/100 PHY of AX88772 */
173
174#define	AXE_GPIO0_EN		0x01
175#define	AXE_GPIO0		0x02
176#define	AXE_GPIO1_EN		0x04
177#define	AXE_GPIO1		0x08
178#define	AXE_GPIO2_EN		0x10
179#define	AXE_GPIO2		0x20
180#define	AXE_GPIO_RELOAD_EEPROM	0x80
181
182#define	AXE_PHY_MODE_MARVELL		0x00
183#define	AXE_PHY_MODE_CICADA		0x01
184#define	AXE_PHY_MODE_AGERE		0x02
185#define	AXE_PHY_MODE_CICADA_V2		0x05
186#define	AXE_PHY_MODE_AGERE_GMII		0x06
187#define	AXE_PHY_MODE_CICADA_V2_ASIX	0x09
188#define	AXE_PHY_MODE_REALTEK_8211CL	0x0C
189#define	AXE_PHY_MODE_REALTEK_8211BN	0x0D
190#define	AXE_PHY_MODE_REALTEK_8251CL	0x0E
191#define	AXE_PHY_MODE_ATTANSIC		0x40
192
193/* AX88772A/AX88772B only. */
194#define	AXE_SW_PHY_SELECT_EXT		0x0000
195#define	AXE_SW_PHY_SELECT_EMBEDDED	0x0001
196#define	AXE_SW_PHY_SELECT_AUTO		0x0002
197#define	AXE_SW_PHY_SELECT_SS_MII	0x0004
198#define	AXE_SW_PHY_SELECT_SS_RVRS_MII	0x0008
199#define	AXE_SW_PHY_SELECT_SS_RVRS_RMII	0x000C
200#define	AXE_SW_PHY_SELECT_SS_ENB	0x0010
201
202/* AX88772A/AX88772B VLAN control. */
203#define	AXE_VLAN_CTRL_ENB		0x00001000
204#define	AXE_VLAN_CTRL_STRIP		0x00002000
205#define	AXE_VLAN_CTRL_VID1_MASK		0x00000FFF
206#define	AXE_VLAN_CTRL_VID2_MASK		0x0FFF0000
207
208#define	AXE_RXCSUM_IP			0x0001
209#define	AXE_RXCSUM_IPVE			0x0002
210#define	AXE_RXCSUM_IPV6E		0x0004
211#define	AXE_RXCSUM_TCP			0x0008
212#define	AXE_RXCSUM_UDP			0x0010
213#define	AXE_RXCSUM_ICMP			0x0020
214#define	AXE_RXCSUM_IGMP			0x0040
215#define	AXE_RXCSUM_ICMP6		0x0080
216#define	AXE_RXCSUM_TCPV6		0x0100
217#define	AXE_RXCSUM_UDPV6		0x0200
218#define	AXE_RXCSUM_ICMPV6		0x0400
219#define	AXE_RXCSUM_IGMPV6		0x0800
220#define	AXE_RXCSUM_ICMP6V6		0x1000
221#define	AXE_RXCSUM_FOPC			0x8000
222
223#define	AXE_RXCSUM_64TE			0x0100
224#define	AXE_RXCSUM_PPPOE		0x0200
225#define	AXE_RXCSUM_RPCE			0x8000
226
227#define	AXE_TXCSUM_IP			0x0001
228#define	AXE_TXCSUM_TCP			0x0002
229#define	AXE_TXCSUM_UDP			0x0004
230#define	AXE_TXCSUM_ICMP			0x0008
231#define	AXE_TXCSUM_IGMP			0x0010
232#define	AXE_TXCSUM_ICMP6		0x0020
233#define	AXE_TXCSUM_TCPV6		0x0100
234#define	AXE_TXCSUM_UDPV6		0x0200
235#define	AXE_TXCSUM_ICMPV6		0x0400
236#define	AXE_TXCSUM_IGMPV6		0x0800
237#define	AXE_TXCSUM_ICMP6V6		0x1000
238
239#define	AXE_TXCSUM_64TE			0x0001
240#define	AXE_TXCSUM_PPPOE		0x0002
241
242#define	AXE_BULK_BUF_SIZE	16384	/* bytes */
243
244#define	AXE_CTL_READ		0x01
245#define	AXE_CTL_WRITE		0x02
246
247#define	AXE_CONFIG_IDX		0	/* config number 1 */
248#define	AXE_IFACE_IDX		0
249
250/* EEPROM Map. */
251#define	AXE_EEPROM_772B_NODE_ID		0x04
252#define	AXE_EEPROM_772B_PHY_PWRCFG	0x18
253
254struct ax88772b_mfb {
255	int	byte_cnt;
256	int	threshold;
257	int	size;
258};
259#define	AX88772B_MFB_2K		0
260#define	AX88772B_MFB_4K		1
261#define	AX88772B_MFB_6K		2
262#define	AX88772B_MFB_8K		3
263#define	AX88772B_MFB_16K	4
264#define	AX88772B_MFB_20K	5
265#define	AX88772B_MFB_24K	6
266#define	AX88772B_MFB_32K	7
267
268struct axe_sframe_hdr {
269	uint16_t len;
270#define	AXE_HDR_LEN_MASK	0xFFFF
271	uint16_t ilen;
272} __packed;
273
274#define	AXE_TX_CSUM_PSEUDO_HDR	0x4000
275#define	AXE_TX_CSUM_DIS		0x8000
276
277/*
278 * When RX checksum offloading is enabled, AX88772B uses new RX header
279 * format and it's not compatible with previous RX header format.  In
280 * addition, IP header align option should be enabled to get correct
281 * frame size including RX header.  Total transferred size including
282 * the RX header is multiple of 4 and controller will pad necessary
283 * bytes if the length is not multiple of 4.
284 * This driver does not enable partial checksum feature which will
285 * compute 16bit checksum from 14th byte to the end of the frame.  If
286 * this feature is enabled, computed checksum value is embedded into
287 * RX header which in turn means it uses different RX header format.
288 */
289struct axe_csum_hdr {
290	uint16_t len;
291#define	AXE_CSUM_HDR_LEN_MASK		0x07FF
292#define	AXE_CSUM_HDR_CRC_ERR		0x1000
293#define	AXE_CSUM_HDR_MII_ERR		0x2000
294#define	AXE_CSUM_HDR_RUNT		0x4000
295#define	AXE_CSUM_HDR_BMCAST		0x8000
296	uint16_t ilen;
297	uint16_t cstatus;
298#define	AXE_CSUM_HDR_VLAN_MASK		0x0007
299#define	AXE_CSUM_HDR_VLAN_STRIP		0x0008
300#define	AXE_CSUM_HDR_VLAN_PRI_MASK	0x0070
301#define	AXE_CSUM_HDR_L4_CSUM_ERR	0x0100
302#define	AXE_CSUM_HDR_L3_CSUM_ERR	0x0200
303#define	AXE_CSUM_HDR_L4_TYPE_UDP	0x0400
304#define	AXE_CSUM_HDR_L4_TYPE_ICMP	0x0800
305#define	AXE_CSUM_HDR_L4_TYPE_IGMP	0x0C00
306#define	AXE_CSUM_HDR_L4_TYPE_TCP	0x1000
307#define	AXE_CSUM_HDR_L4_TYPE_TCPV6	0x1400
308#define	AXE_CSUM_HDR_L4_TYPE_MASK	0x1C00
309#define	AXE_CSUM_HDR_L3_TYPE_IPV4	0x2000
310#define	AXE_CSUM_HDR_L3_TYPE_IPV6	0x4000
311
312#ifdef AXE_APPEND_PARTIAL_CSUM
313	/*
314	 * These members present only when partial checksum
315	 * offloading is enabled.  The checksum value is simple
316	 * 16bit sum of received frame starting at offset 14 of
317	 * the frame to the end of the frame excluding FCS bytes.
318	 */
319	uint16_t csum_value;
320	uint16_t dummy;
321#endif
322} __packed;
323
324#define	AXE_CSUM_RXBYTES(x)	((x) & AXE_CSUM_HDR_LEN_MASK)
325
326#define	GET_MII(sc)		uether_getmii(&(sc)->sc_ue)
327
328/* The interrupt endpoint is currently unused by the ASIX part. */
329enum {
330	AXE_BULK_DT_WR,
331	AXE_BULK_DT_RD,
332	AXE_N_TRANSFER,
333};
334
335struct axe_softc {
336	struct usb_ether	sc_ue;
337	struct mtx		sc_mtx;
338	struct usb_xfer	*sc_xfer[AXE_N_TRANSFER];
339	int			sc_phyno;
340
341	int			sc_flags;
342#define	AXE_FLAG_LINK		0x0001
343#define	AXE_FLAG_STD_FRAME	0x0010
344#define	AXE_FLAG_CSUM_FRAME	0x0020
345#define	AXE_FLAG_772		0x1000	/* AX88772 */
346#define	AXE_FLAG_772A		0x2000	/* AX88772A */
347#define	AXE_FLAG_772B		0x4000	/* AX88772B */
348#define	AXE_FLAG_178		0x8000	/* AX88178 */
349
350	uint8_t			sc_ipgs[3];
351	uint8_t			sc_phyaddrs[2];
352	uint16_t		sc_pwrcfg;
353	uint16_t		sc_lenmask;
354};
355
356#define	AXE_IS_178_FAMILY(sc)						  \
357	((sc)->sc_flags & (AXE_FLAG_772 | AXE_FLAG_772A | AXE_FLAG_772B | \
358	AXE_FLAG_178))
359
360#define	AXE_IS_772(sc)							  \
361	((sc)->sc_flags & (AXE_FLAG_772 | AXE_FLAG_772A | AXE_FLAG_772B))
362
363#define	AXE_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
364#define	AXE_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
365#define	AXE_LOCK_ASSERT(_sc, t)	mtx_assert(&(_sc)->sc_mtx, t)
366