1/*-
2 * Copyright (C) 2007
3 *	Oleksandr Tymoshenko <gonzo@freebsd.org>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
23 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 *
28 */
29
30#ifndef __IF_AREREG_H__
31#define __IF_AREREG_H__
32
33struct are_desc {
34	uint32_t	are_stat;
35	uint32_t	are_devcs;
36	uint32_t	are_addr;
37	uint32_t	are_link;
38};
39
40#define	ARE_DMASIZE(len)		((len)  & ((1 << 11)-1))
41#define	ARE_PKTSIZE(len)		((len & 0xffff0000) >> 16)
42
43#define	ARE_RX_RING_CNT		128
44#define	ARE_TX_RING_CNT		128
45#define	ARE_TX_RING_SIZE		sizeof(struct are_desc) * ARE_TX_RING_CNT
46#define	ARE_RX_RING_SIZE		sizeof(struct are_desc) * ARE_RX_RING_CNT
47
48#define	ARE_MIN_FRAMELEN		60
49#define	ARE_RING_ALIGN		sizeof(struct are_desc)
50#define	ARE_RX_ALIGN		sizeof(uint32_t)
51#define	ARE_MAXFRAGS		8
52#define	ARE_TX_INTR_THRESH	8
53
54#define	ARE_TX_RING_ADDR(sc, i)	\
55    ((sc)->are_rdata.are_tx_ring_paddr + sizeof(struct are_desc) * (i))
56#define	ARE_RX_RING_ADDR(sc, i)	\
57    ((sc)->are_rdata.are_rx_ring_paddr + sizeof(struct are_desc) * (i))
58#define	ARE_INC(x,y)		(x) = (((x) + 1) % y)
59
60struct are_txdesc {
61	struct mbuf	*tx_m;
62	bus_dmamap_t	tx_dmamap;
63};
64
65struct are_rxdesc {
66	struct mbuf	*rx_m;
67	bus_dmamap_t	rx_dmamap;
68	struct are_desc	*desc;
69	/* Use this values on error instead of allocating new mbuf */
70	uint32_t	saved_ctl, saved_ca;
71};
72
73struct are_chain_data {
74	bus_dma_tag_t		are_parent_tag;
75	bus_dma_tag_t		are_tx_tag;
76	struct are_txdesc	are_txdesc[ARE_TX_RING_CNT];
77	bus_dma_tag_t		are_rx_tag;
78	struct are_rxdesc	are_rxdesc[ARE_RX_RING_CNT];
79	bus_dma_tag_t		are_tx_ring_tag;
80	bus_dma_tag_t		are_rx_ring_tag;
81	bus_dmamap_t		are_tx_ring_map;
82	bus_dmamap_t		are_rx_ring_map;
83	bus_dmamap_t		are_rx_sparemap;
84	int			are_tx_pkts;
85	int			are_tx_prod;
86	int			are_tx_cons;
87	int			are_tx_cnt;
88	int			are_rx_cons;
89};
90
91struct are_ring_data {
92	struct are_desc		*are_rx_ring;
93	struct are_desc		*are_tx_ring;
94	bus_addr_t		are_rx_ring_paddr;
95	bus_addr_t		are_tx_ring_paddr;
96};
97
98struct are_softc {
99	struct ifnet		*are_ifp;	/* interface info */
100	bus_space_handle_t	are_bhandle;	/* bus space handle */
101	bus_space_tag_t		are_btag;	/* bus space tag */
102	device_t		are_dev;
103	uint8_t			are_eaddr[ETHER_ADDR_LEN];
104	struct resource		*are_res;
105	int			are_rid;
106	struct resource		*are_irq;
107	void			*are_intrhand;
108	u_int32_t		sc_inten;	/* copy of CSR_INTEN */
109	u_int32_t		sc_rxint_mask;	/* mask of Rx interrupts we want */
110	u_int32_t		sc_txint_mask;	/* mask of Tx interrupts we want */
111#ifdef ARE_MII
112	device_t		are_miibus;
113#else
114	struct ifmedia		are_ifmedia;
115#endif
116#ifdef ARE_MDIO
117	device_t		are_miiproxy;
118#endif
119	bus_dma_tag_t		are_parent_tag;
120	bus_dma_tag_t		are_tag;
121	struct mtx		are_mtx;
122	struct callout		are_stat_callout;
123	struct task		are_link_task;
124	struct are_chain_data	are_cdata;
125	struct are_ring_data	are_rdata;
126	int			are_link_status;
127	int			are_detach;
128	int			are_if_flags;   /* last if flags */
129};
130
131#define	ARE_LOCK(_sc)		mtx_lock(&(_sc)->are_mtx)
132#define	ARE_UNLOCK(_sc)		mtx_unlock(&(_sc)->are_mtx)
133#define	ARE_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->are_mtx, MA_OWNED)
134
135/*
136 * register space access macros
137 */
138#define	CSR_WRITE_4(sc, reg, val)	\
139    bus_space_write_4(sc->are_btag, sc->are_bhandle, reg, val)
140
141#define	CSR_READ_4(sc, reg)		\
142    bus_space_read_4(sc->are_btag, sc->are_bhandle, reg)
143
144/*	$NetBSD: aereg.h,v 1.2 2008/04/28 20:23:28 martin Exp $	*/
145
146/*-
147 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
148 * All rights reserved.
149 *
150 * This code is derived from software contributed to The NetBSD Foundation
151 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
152 * NASA Ames Research Center.
153 *
154 * Redistribution and use in source and binary forms, with or without
155 * modification, are permitted provided that the following conditions
156 * are met:
157 * 1. Redistributions of source code must retain the above copyright
158 *    notice, this list of conditions and the following disclaimer.
159 * 2. Redistributions in binary form must reproduce the above copyright
160 *    notice, this list of conditions and the following disclaimer in the
161 *    documentation and/or other materials provided with the distribution.
162 *
163 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
164 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
165 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
166 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
167 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
168 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
169 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
170 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
171 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
172 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
173 * POSSIBILITY OF SUCH DAMAGE.
174 */
175
176/*
177 * Descriptor Status bits common to transmit and receive.
178 */
179#define	ADSTAT_OWN	0x80000000	/* Tulip owns descriptor */
180#define	ADSTAT_ES	0x00008000	/* Error Summary */
181
182/*
183 * Descriptor Status bits for Receive Descriptor.
184 */
185#define	ADSTAT_Rx_FF	0x40000000	/* Filtering Fail */
186#define	ADSTAT_Rx_FL	0x3fff0000	/* Frame Length including CRC */
187#define	ADSTAT_Rx_DE	0x00004000	/* Descriptor Error */
188#define	ADSTAT_Rx_LE	0x00001000	/* Length Error */
189#define	ADSTAT_Rx_RF	0x00000800	/* Runt Frame */
190#define	ADSTAT_Rx_MF	0x00000400	/* Multicast Frame */
191#define	ADSTAT_Rx_FS	0x00000200	/* First Descriptor */
192#define	ADSTAT_Rx_LS	0x00000100	/* Last Descriptor */
193#define	ADSTAT_Rx_TL	0x00000080	/* Frame Too Long */
194#define	ADSTAT_Rx_CS	0x00000040	/* Collision Seen */
195#define	ADSTAT_Rx_RT	0x00000020	/* Frame Type */
196#define	ADSTAT_Rx_RW	0x00000010	/* Receive Watchdog */
197#define	ADSTAT_Rx_RE	0x00000008	/* Report on MII Error */
198#define	ADSTAT_Rx_DB	0x00000004	/* Dribbling Bit */
199#define	ADSTAT_Rx_CE	0x00000002	/* CRC Error */
200#define	ADSTAT_Rx_ZER	0x00000001	/* Zero (always 0) */
201
202#define	ADSTAT_Rx_LENGTH(x)	(((x) & ADSTAT_Rx_FL) >> 16)
203
204/*
205 * Descriptor Status bits for Transmit Descriptor.
206 */
207#define	ADSTAT_Tx_ES	0x00008000	/* Error Summary */
208#define	ADSTAT_Tx_TO	0x00004000	/* Transmit Jabber Timeout */
209#define	ADSTAT_Tx_LO	0x00000800	/* Loss of Carrier */
210#define	ADSTAT_Tx_NC	0x00000400	/* No Carrier */
211#define	ADSTAT_Tx_LC	0x00000200	/* Late Collision */
212#define	ADSTAT_Tx_EC	0x00000100	/* Excessive Collisions */
213#define	ADSTAT_Tx_HF	0x00000080	/* Heartbeat Fail */
214#define	ADSTAT_Tx_CC	0x00000078	/* Collision Count */
215#define	ADSTAT_Tx_ED	0x00000004	/* Excessive Deferral */
216#define	ADSTAT_Tx_UF	0x00000002	/* Underflow Error */
217#define	ADSTAT_Tx_DE	0x00000001	/* Deferred */
218
219#define	ADSTAT_Tx_COLLISIONS(x)	(((x) & ADSTAT_Tx_CC) >> 3)
220
221/*
222 * Descriptor Control bits common to transmit and receive.
223 */
224#define	ADCTL_SIZE1	0x000007ff	/* Size of buffer 1 */
225#define	ADCTL_SIZE1_SHIFT 0
226
227#define	ADCTL_SIZE2	0x003ff800	/* Size of buffer 2 */
228#define	ADCTL_SIZE2_SHIFT 11
229
230#define	ADCTL_ER	0x02000000	/* End of Ring */
231#define	ADCTL_CH	0x01000000	/* Second Address Chained */
232
233/*
234 * Descriptor Control bits for Transmit Descriptor.
235 */
236#define	ADCTL_Tx_IC	0x80000000	/* Interrupt on Completion */
237#define	ADCTL_Tx_LS	0x40000000	/* Last Segment */
238#define	ADCTL_Tx_FS	0x20000000	/* First Segment */
239#define	ADCTL_Tx_AC	0x04000000	/* Add CRC Disable */
240#define	ADCTL_Tx_DPD	0x00800000	/* Disabled Padding */
241
242/*
243 * Control registers.
244 */
245
246/* tese are registers only found on this part */
247#define	CSR_MACCTL	0x0000		/* mac control */
248#define	CSR_MACHI	0x0004
249#define	CSR_MACLO	0x0008
250#define	CSR_HTHI	0x000C		/* multicast table high */
251#define	CSR_HTLO	0x0010		/* multicast table low */
252#define	CSR_MIIADDR	0x0014		/* mii address */
253#define	CSR_MIIDATA	0x0018		/* mii data */
254#define	CSR_FLOWC	0x001C		/* flow control */
255#define	CSR_VL1		0x0020		/* vlan 1 tag */
256
257/* these are more or less normal Tulip registers */
258#define	CSR_BUSMODE	0x1000		/* bus mode */
259#define	CSR_TXPOLL	0x1004		/* tx poll demand */
260#define	CSR_RXPOLL	0x1008		/* rx poll demand */
261#define	CSR_RXLIST	0x100C		/* rx base descriptor address */
262#define	CSR_TXLIST	0x1010		/* tx base descriptor address */
263#define	CSR_STATUS	0x1014		/* (interrupt) status */
264#define	CSR_OPMODE	0x1018		/* operation mode */
265#define	CSR_INTEN	0x101C		/* interrupt enable */
266#define	CSR_MISSED	0x1020		/* missed frame counter */
267#define	CSR_HTBA	0x1050		/* host tx buffer address (ro) */
268#define	CSR_HRBA	0x1054		/* host rx buffer address (ro) */
269
270/* CSR_MACCTL - Mac Control */
271#define	MACCTL_RE		0x00000004	/* rx enable */
272#define	MACCTL_TE		0x00000008	/* tx enable */
273#define	MACCTL_DC		0x00000020	/* deferral check */
274#define	MACCTL_PSTR		0x00000100	/* automatic pad strip */
275#define	MACCTL_DTRY		0x00000400	/* disable retry */
276#define	MACCTL_DBF		0x00000800	/* disable broadcast frames */
277#define	MACCTL_LCC		0x00001000	/* late collision control */
278#define	MACCTL_HASH		0x00002000	/* hash filtering enable */
279#define	MACCTL_HO		0x00008000	/* disable perfect filtering */
280#define	MACCTL_PB		0x00010000	/* pass bad frames */
281#define	MACCTL_IF		0x00020000	/* inverse filtering */
282#define	MACCTL_PR		0x00040000	/* promiscuous mode */
283#define	MACCTL_PM		0x00080000	/* pass all multicast */
284#define	MACCTL_FDX		0x00100000	/* full duplex mode */
285#define	MACCTL_LOOP		0x00600000	/* loopback mask */
286#define	MACCTL_LOOP_INT		0x00200000	/* internal loopback */
287#define	MACCTL_LOOP_EXT		0x00400000	/* external loopback */
288#define	MACCTL_LOOP_NONE	0x00000000
289#define	MACCTL_DRO		0x00800000	/* disable receive own */
290#define	MACCTL_PS		0x08000000	/* port select, 0 = mii */
291#define	MACCTL_HBD		0x10000000	/* heartbeat disable */
292#define	MACCTL_BLE		0x40000000	/* mac big endian */
293#define	MACCTL_RA		0x80000000	/* receive all packets */
294
295/* CSR_MIIADDR - MII Addess */
296#define	MIIADDR_BUSY		0x00000001	/* mii busy */
297#define	MIIADDR_WRITE		0x00000002	/* mii write */
298#define	MIIADDR_REG_MASK	0x000007C0	/* mii register */
299#define	MIIADDR_REG_SHIFT	6
300#define	MIIADDR_PHY_MASK	0x0000F800	/* mii phy */
301#define	MIIADDR_PHY_SHIFT	11
302
303#define	MIIADDR_GETREG(x)	(((x) & MIIADDR_REG) >> 6)
304#define	MIIADDR_PUTREG(x)	(((x) << 6) & MIIADR_REG)
305#define	MIIADDR_GETPHY(x)	(((x) & MIIADDR_PHY) >> 11)
306#define	MIIADDR_PUTPHY(x)	(((x) << 6) & MIIADR_PHY)
307
308/* CSR_FLOWC - Flow Control */
309#define	FLOWC_FCB		0x00000001	/* flow control busy */
310#define	FLOWC_FCE		0x00000002	/* flow control enable */
311#define	FLOWC_PCF		0x00000004	/* pass control frames */
312#define	FLOWC_PT		0xffff0000	/* pause time */
313
314/* CSR_BUSMODE - Bus Mode */
315#define	BUSMODE_SWR		0x00000001	/* software reset */
316#define	BUSMODE_BAR		0x00000002	/* bus arbitration */
317#define	BUSMODE_DSL		0x0000007c	/* descriptor skip length */
318#define	BUSMODE_BLE		0x00000080	/* data buf endian */
319						/* programmable burst length */
320#define	BUSMODE_PBL_DEFAULT	0x00000000	/*     default value */
321#define	BUSMODE_PBL_1LW		0x00000100	/*     1 longword */
322#define	BUSMODE_PBL_2LW		0x00000200	/*     2 longwords */
323#define	BUSMODE_PBL_4LW		0x00000400	/*     4 longwords */
324#define	BUSMODE_PBL_8LW		0x00000800	/*     8 longwords */
325#define	BUSMODE_PBL_16LW	0x00001000	/*    16 longwords */
326#define	BUSMODE_PBL_32LW	0x00002000	/*    32 longwords */
327#define	BUSMODE_DBO		0x00100000	/* descriptor endian */
328#define	BUSMODE_ALIGN_16B	0x01000000	/* force oddhw rx buf align */
329
330/* CSR_TXPOLL - Transmit Poll Demand */
331#define	TXPOLL_TPD		0x00000001	/* transmit poll demand */
332
333/* CSR_RXPOLL - Receive Poll Demand */
334#define	RXPOLL_RPD		0x00000001	/* receive poll demand */
335
336/* CSR_STATUS - Status */
337#define	STATUS_TI		0x00000001	/* transmit interrupt */
338#define	STATUS_TPS		0x00000002	/* transmit process stopped */
339#define	STATUS_TU		0x00000004	/* transmit buffer unavail */
340#define	STATUS_TJT		0x00000008	/* transmit jabber timeout */
341#define	STATUS_UNF		0x00000020	/* transmit underflow */
342#define	STATUS_RI		0x00000040	/* receive interrupt */
343#define	STATUS_RU		0x00000080	/* receive buffer unavail */
344#define	STATUS_RPS		0x00000100	/* receive process stopped */
345#define	STATUS_ETI		0x00000400	/* early transmit interrupt */
346#define	STATUS_SE		0x00002000	/* system error */
347#define	STATUS_ER		0x00004000	/* early receive (21041) */
348#define	STATUS_AIS		0x00008000	/* abnormal intr summary */
349#define	STATUS_NIS		0x00010000	/* normal interrupt summary */
350#define	STATUS_RS		0x000e0000	/* receive process state */
351#define	STATUS_RS_STOPPED	0x00000000	/* Stopped */
352#define	STATUS_RS_FETCH		0x00020000	/* Running - fetch receive
353						   descriptor */
354#define	STATUS_RS_CHECK		0x00040000	/* Running - check for end
355						   of receive */
356#define	STATUS_RS_WAIT		0x00060000	/* Running - wait for packet */
357#define	STATUS_RS_SUSPENDED	0x00080000	/* Suspended */
358#define	STATUS_RS_CLOSE		0x000a0000	/* Running - close receive
359						   descriptor */
360#define	STATUS_RS_FLUSH		0x000c0000	/* Running - flush current
361						   frame from FIFO */
362#define	STATUS_RS_QUEUE		0x000e0000	/* Running - queue current
363						   frame from FIFO into
364						   buffer */
365#define	STATUS_TS		0x00700000	/* transmit process state */
366#define	STATUS_TS_STOPPED	0x00000000	/* Stopped */
367#define	STATUS_TS_FETCH		0x00100000	/* Running - fetch transmit
368						   descriptor */
369#define	STATUS_TS_WAIT		0x00200000	/* Running - wait for end
370						   of transmission */
371#define	STATUS_TS_READING	0x00300000	/* Running - read buffer from
372						   memory and queue into
373						   FIFO */
374#define	STATUS_TS_SUSPENDED	0x00600000	/* Suspended */
375#define	STATUS_TS_CLOSE		0x00700000	/* Running - close transmit
376						   descriptor */
377#define	STATUS_TX_ABORT		0x00800000	/* Transmit bus abort */
378#define	STATUS_RX_ABORT		0x01000000	/* Transmit bus abort */
379
380/* CSR_OPMODE - Operation Mode */
381#define	OPMODE_SR		0x00000002	/* start receive */
382#define	OPMODE_OSF		0x00000004	/* operate on second frame */
383#define	OPMODE_ST		0x00002000	/* start transmitter */
384#define	OPMODE_TR		0x0000c000	/* threshold control */
385#define	OPMODE_TR_32		0x00000000	/*     32 words */
386#define	OPMODE_TR_64		0x00004000	/*     64 words */
387#define	OPMODE_TR_128		0x00008000	/*    128 words */
388#define	OPMODE_TR_256		0x0000c000	/*    256 words */
389#define	OPMODE_SF		0x00200000	/* store and forward mode */
390
391/* CSR_INTEN - Interrupt Enable */
392	/* See bits for CSR_STATUS -- Status */
393
394/* CSR_MISSED - Missed Frames */
395#define	MISSED_MFC		0xffff0000	/* missed packet count */
396#define	MISSED_FOC		0x0000ffff	/* fifo overflow counter */
397
398#define	MISSED_GETMFC(x)	((x) & MISSED_MFC)
399#define	MISSED_GETFOC(x)	(((x) & MISSED_FOC) >> 16)
400
401#endif /* __IF_AREREG_H__ */
402