1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1997, 1998, 1999
5 *	Bill Paul <wpaul@ee.columbia.edu>.  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 * Register definitions for ADMtek Pegasus AN986 USB to Ethernet
39 * chip. The Pegasus uses a total of four USB endpoints: the control
40 * endpoint (0), a bulk read endpoint for receiving packets (1),
41 * a bulk write endpoint for sending packets (2) and an interrupt
42 * endpoint for passing RX and TX status (3). Endpoint 0 is used
43 * to read and write the ethernet module's registers. All registers
44 * are 8 bits wide.
45 *
46 * Packet transfer is done in 64 byte chunks. The last chunk in a
47 * transfer is denoted by having a length less that 64 bytes. For
48 * the RX case, the data includes an optional RX status word.
49 */
50
51#define	AUE_UR_READREG		0xF0
52#define	AUE_UR_WRITEREG		0xF1
53
54#define	AUE_CONFIG_INDEX	0	/* config number 1 */
55#define	AUE_IFACE_IDX		0
56
57/*
58 * Note that while the ADMtek technically has four endpoints, the control
59 * endpoint (endpoint 0) is regarded as special by the USB code and drivers
60 * don't have direct access to it (we access it using usbd_do_request()
61 * when reading/writing registers.  Consequently, our endpoint indexes
62 * don't match those in the ADMtek Pegasus manual: we consider the RX data
63 * endpoint to be index 0 and work up from there.
64 */
65enum {
66	AUE_BULK_DT_WR,
67	AUE_BULK_DT_RD,
68	AUE_INTR_DT_RD,
69	AUE_N_TRANSFER,
70};
71
72#define	AUE_INTR_PKTLEN		0x8
73
74#define	AUE_CTL0		0x00
75#define	AUE_CTL1		0x01
76#define	AUE_CTL2		0x02
77#define	AUE_MAR0		0x08
78#define	AUE_MAR1		0x09
79#define	AUE_MAR2		0x0A
80#define	AUE_MAR3		0x0B
81#define	AUE_MAR4		0x0C
82#define	AUE_MAR5		0x0D
83#define	AUE_MAR6		0x0E
84#define	AUE_MAR7		0x0F
85#define	AUE_MAR			AUE_MAR0
86#define	AUE_PAR0		0x10
87#define	AUE_PAR1		0x11
88#define	AUE_PAR2		0x12
89#define	AUE_PAR3		0x13
90#define	AUE_PAR4		0x14
91#define	AUE_PAR5		0x15
92#define	AUE_PAR			AUE_PAR0
93#define	AUE_PAUSE0		0x18
94#define	AUE_PAUSE1		0x19
95#define	AUE_PAUSE		AUE_PAUSE0
96#define	AUE_RX_FLOWCTL_CNT	0x1A
97#define	AUE_RX_FLOWCTL_FIFO	0x1B
98#define	AUE_REG_1D		0x1D
99#define	AUE_EE_REG		0x20
100#define	AUE_EE_DATA0		0x21
101#define	AUE_EE_DATA1		0x22
102#define	AUE_EE_DATA		AUE_EE_DATA0
103#define	AUE_EE_CTL		0x23
104#define	AUE_PHY_ADDR		0x25
105#define	AUE_PHY_DATA0		0x26
106#define	AUE_PHY_DATA1		0x27
107#define	AUE_PHY_DATA		AUE_PHY_DATA0
108#define	AUE_PHY_CTL		0x28
109#define	AUE_USB_STS		0x2A
110#define	AUE_TXSTAT0		0x2B
111#define	AUE_TXSTAT1		0x2C
112#define	AUE_TXSTAT		AUE_TXSTAT0
113#define	AUE_RXSTAT		0x2D
114#define	AUE_PKTLOST0		0x2E
115#define	AUE_PKTLOST1		0x2F
116#define	AUE_PKTLOST		AUE_PKTLOST0
117
118#define	AUE_REG_7B		0x7B
119#define	AUE_GPIO0		0x7E
120#define	AUE_GPIO1		0x7F
121#define	AUE_REG_81		0x81
122
123#define	AUE_CTL0_INCLUDE_RXCRC	0x01
124#define	AUE_CTL0_ALLMULTI	0x02
125#define	AUE_CTL0_STOP_BACKOFF	0x04
126#define	AUE_CTL0_RXSTAT_APPEND	0x08
127#define	AUE_CTL0_WAKEON_ENB	0x10
128#define	AUE_CTL0_RXPAUSE_ENB	0x20
129#define	AUE_CTL0_RX_ENB		0x40
130#define	AUE_CTL0_TX_ENB		0x80
131
132#define	AUE_CTL1_HOMELAN	0x04
133#define	AUE_CTL1_RESETMAC	0x08
134#define	AUE_CTL1_SPEEDSEL	0x10	/* 0 = 10mbps, 1 = 100mbps */
135#define	AUE_CTL1_DUPLEX		0x20	/* 0 = half, 1 = full */
136#define	AUE_CTL1_DELAYHOME	0x40
137
138#define	AUE_CTL2_EP3_CLR	0x01	/* reading EP3 clrs status regs */
139#define	AUE_CTL2_RX_BADFRAMES	0x02
140#define	AUE_CTL2_RX_PROMISC	0x04
141#define	AUE_CTL2_LOOPBACK	0x08
142#define	AUE_CTL2_EEPROMWR_ENB	0x10
143#define	AUE_CTL2_EEPROM_LOAD	0x20
144
145#define	AUE_EECTL_WRITE		0x01
146#define	AUE_EECTL_READ		0x02
147#define	AUE_EECTL_DONE		0x04
148
149#define	AUE_PHYCTL_PHYREG	0x1F
150#define	AUE_PHYCTL_WRITE	0x20
151#define	AUE_PHYCTL_READ		0x40
152#define	AUE_PHYCTL_DONE		0x80
153
154#define	AUE_USBSTS_SUSPEND	0x01
155#define	AUE_USBSTS_RESUME	0x02
156
157#define	AUE_TXSTAT0_JABTIMO	0x04
158#define	AUE_TXSTAT0_CARLOSS	0x08
159#define	AUE_TXSTAT0_NOCARRIER	0x10
160#define	AUE_TXSTAT0_LATECOLL	0x20
161#define	AUE_TXSTAT0_EXCESSCOLL	0x40
162#define	AUE_TXSTAT0_UNDERRUN	0x80
163
164#define	AUE_TXSTAT1_PKTCNT	0x0F
165#define	AUE_TXSTAT1_FIFO_EMPTY	0x40
166#define	AUE_TXSTAT1_FIFO_FULL	0x80
167
168#define	AUE_RXSTAT_OVERRUN	0x01
169#define	AUE_RXSTAT_PAUSE	0x02
170
171#define	AUE_GPIO_IN0		0x01
172#define	AUE_GPIO_OUT0		0x02
173#define	AUE_GPIO_SEL0		0x04
174#define	AUE_GPIO_IN1		0x08
175#define	AUE_GPIO_OUT1		0x10
176#define	AUE_GPIO_SEL1		0x20
177
178#define	AUE_TIMEOUT		100	/* 10*ms */
179#define	AUE_MIN_FRAMELEN	60
180
181#define	AUE_RXSTAT_MCAST	0x01
182#define	AUE_RXSTAT_GIANT	0x02
183#define	AUE_RXSTAT_RUNT		0x04
184#define	AUE_RXSTAT_CRCERR	0x08
185#define	AUE_RXSTAT_DRIBBLE	0x10
186#define	AUE_RXSTAT_MASK		0x1E
187
188#define	GET_MII(sc)		uether_getmii(&(sc)->sc_ue)
189
190struct aue_intrpkt {
191	uint8_t	aue_txstat0;
192	uint8_t	aue_txstat1;
193	uint8_t	aue_rxstat;
194	uint8_t	aue_rxlostpkt0;
195	uint8_t	aue_rxlostpkt1;
196	uint8_t	aue_wakeupstat;
197	uint8_t	aue_rsvd;
198} __packed;
199
200struct aue_rxpkt {
201	uint16_t aue_pktlen;
202	uint8_t	aue_rxstat;
203	uint8_t	pad;
204} __packed;
205
206struct aue_softc {
207	struct usb_ether	sc_ue;
208	struct mtx		sc_mtx;
209	struct usb_xfer	*sc_xfer[AUE_N_TRANSFER];
210
211	int			sc_flags;
212#define	AUE_FLAG_LSYS		0x0001	/* use Linksys reset */
213#define	AUE_FLAG_PNA		0x0002	/* has Home PNA */
214#define	AUE_FLAG_PII		0x0004	/* Pegasus II chip */
215#define	AUE_FLAG_LINK		0x0008	/* wait for link to come up */
216#define	AUE_FLAG_VER_2		0x0200	/* chip is version 2 */
217#define	AUE_FLAG_DUAL_PHY	0x0400	/* chip has two transcivers */
218};
219
220#define	AUE_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
221#define	AUE_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
222#define	AUE_LOCK_ASSERT(_sc, t)	mtx_assert(&(_sc)->sc_mtx, t)
223