1/*-
2 * SPDX-License-Identifier: ISC
3 *
4 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
5 * Copyright (c) 2002-2008 Atheros Communications, Inc.
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 *
19 * $FreeBSD: releng/12.0/sys/dev/ath/ath_hal/ar5212/ar5212desc.h 326695 2017-12-08 15:57:29Z pfg $
20 */
21#ifndef _ATH_AR5212_DESC_H_
22#define _ATH_AR5212_DESC_H_
23
24/*
25 * Hardware-specific descriptor structures.
26 */
27
28/*
29 * AR5212-specific tx/rx descriptor definition.
30 */
31struct ar5212_desc {
32	uint32_t	ds_link;	/* link pointer */
33	uint32_t	ds_data;	/* data buffer pointer */
34	uint32_t	ds_ctl0;	/* DMA control 0 */
35	uint32_t	ds_ctl1;	/* DMA control 1 */
36	union {
37		struct {		/* xmit format */
38			uint32_t	ctl2;	/* DMA control 2 */
39			uint32_t	ctl3;	/* DMA control 3 */
40			uint32_t	status0;/* DMA status 0 */
41			uint32_t	status1;/* DMA status 1 */
42		} tx;
43		struct {		/* recv format */
44			uint32_t	status0;/* DMA status 0 */
45			uint32_t	status1;/* DMA status 1 */
46		} rx;
47	} u;
48} __packed;
49#define	AR5212DESC(_ds)	((struct ar5212_desc *)(_ds))
50#define	AR5212DESC_CONST(_ds)	((const struct ar5212_desc *)(_ds))
51
52#define	ds_ctl2		u.tx.ctl2
53#define	ds_ctl3		u.tx.ctl3
54#define	ds_txstatus0	u.tx.status0
55#define	ds_txstatus1	u.tx.status1
56#define	ds_rxstatus0	u.rx.status0
57#define	ds_rxstatus1	u.rx.status1
58
59/* TX ds_ctl0 */
60#define	AR_FrameLen		0x00000fff	/* frame length */
61/* bits 12-15 are reserved */
62#define	AR_XmitPower		0x003f0000	/* transmit power control */
63#define	AR_XmitPower_S		16
64#define	AR_RTSCTSEnable		0x00400000	/* RTS/CTS protocol enable */
65#define	AR_VEOL			0x00800000	/* virtual end-of-list */
66#define	AR_ClearDestMask	0x01000000	/* Clear destination mask bit */
67#define	AR_AntModeXmit		0x1e000000	/* TX antenna seslection */
68#define	AR_AntModeXmit_S	25
69#define	AR_TxInterReq		0x20000000	/* TX interrupt request */
70#define	AR_DestIdxValid		0x40000000	/* destination index valid */
71#define	AR_CTSEnable		0x80000000	/* precede frame with CTS */
72
73/* TX ds_ctl1 */
74#define	AR_BufLen		0x00000fff	/* data buffer length */
75#define	AR_More			0x00001000	/* more desc in this frame */
76#define	AR_DestIdx		0x000fe000	/* destination table index */
77#define	AR_DestIdx_S		13
78#define	AR_FrmType		0x00f00000	/* frame type indication */
79#define	AR_FrmType_S		20
80#define	AR_NoAck		0x01000000	/* No ACK flag */
81#define	AR_CompProc		0x06000000	/* compression processing */
82#define	AR_CompProc_S		25
83#define	AR_CompIVLen		0x18000000	/* length of frame IV */
84#define	AR_CompIVLen_S		27
85#define	AR_CompICVLen		0x60000000	/* length of frame ICV */
86#define	AR_CompICVLen_S		29
87/* bit 31 is reserved */
88
89/* TX ds_ctl2 */
90#define	AR_RTSCTSDuration	0x00007fff	/* RTS/CTS duration */
91#define	AR_RTSCTSDuration_S	0
92#define	AR_DurUpdateEna		0x00008000	/* frame duration update ctl */
93#define	AR_XmitDataTries0	0x000f0000	/* series 0 max attempts */
94#define	AR_XmitDataTries0_S	16
95#define	AR_XmitDataTries1	0x00f00000	/* series 1 max attempts */
96#define	AR_XmitDataTries1_S	20
97#define	AR_XmitDataTries2	0x0f000000	/* series 2 max attempts */
98#define	AR_XmitDataTries2_S	24
99#define	AR_XmitDataTries3	0xf0000000	/* series 3 max attempts */
100#define	AR_XmitDataTries3_S	28
101
102/* TX ds_ctl3 */
103#define	AR_XmitRate0		0x0000001f	/* series 0 tx rate */
104#define	AR_XmitRate0_S		0
105#define	AR_XmitRate1		0x000003e0	/* series 1 tx rate */
106#define	AR_XmitRate1_S		5
107#define	AR_XmitRate2		0x00007c00	/* series 2 tx rate */
108#define	AR_XmitRate2_S		10
109#define	AR_XmitRate3		0x000f8000	/* series 3 tx rate */
110#define	AR_XmitRate3_S		15
111#define	AR_RTSCTSRate		0x01f00000	/* RTS or CTS rate */
112#define	AR_RTSCTSRate_S		20
113/* bits 25-31 are reserved */
114
115/* RX ds_ctl1 */
116/*	AR_BufLen		0x00000fff	   data buffer length */
117/* bit 12 is reserved */
118#define	AR_RxInterReq		0x00002000	/* RX interrupt request */
119/* bits 14-31 are reserved */
120
121/* TX ds_txstatus0 */
122#define	AR_FrmXmitOK		0x00000001	/* TX success */
123#define	AR_ExcessiveRetries	0x00000002	/* excessive retries */
124#define	AR_FIFOUnderrun		0x00000004	/* TX FIFO underrun */
125#define	AR_Filtered		0x00000008	/* TX filter indication */
126#define	AR_RTSFailCnt		0x000000f0	/* RTS failure count */
127#define	AR_RTSFailCnt_S		4
128#define	AR_DataFailCnt		0x00000f00	/* Data failure count */
129#define	AR_DataFailCnt_S	8
130#define	AR_VirtCollCnt		0x0000f000	/* virtual collision count */
131#define	AR_VirtCollCnt_S	12
132#define	AR_SendTimestamp	0xffff0000	/* TX timestamp */
133#define	AR_SendTimestamp_S	16
134
135/* RX ds_rxstatus0 */
136#define	AR_DataLen		0x00000fff	/* RX data length */
137/*	AR_More			0x00001000	   more desc in this frame */
138#define	AR_DecompCRCErr		0x00002000	/* decompression CRC error */
139/* bit 14 is reserved */
140#define	AR_RcvRate		0x000f8000	/* reception rate */
141#define	AR_RcvRate_S		15
142#define	AR_RcvSigStrength	0x0ff00000	/* receive signal strength */
143#define	AR_RcvSigStrength_S	20
144#define	AR_RcvAntenna		0xf0000000	/* receive antenaa */
145#define	AR_RcvAntenna_S		28
146
147/* TX ds_txstatus1 */
148#define	AR_Done			0x00000001	/* descripter complete */
149#define	AR_SeqNum		0x00001ffe	/* TX sequence number */
150#define	AR_SeqNum_S		1
151#define	AR_AckSigStrength	0x001fe000	/* strength of ACK */
152#define	AR_AckSigStrength_S	13
153#define	AR_FinalTSIndex		0x00600000	/* final TX attempt series ix */
154#define	AR_FinalTSIndex_S	21
155#define	AR_CompSuccess		0x00800000	/* compression status */
156#define	AR_XmitAtenna		0x01000000	/* transmit antenna */
157/* bits 25-31 are reserved */
158
159/* RX ds_rxstatus1 */
160/*	AR_Done			0x00000001	   descripter complete */
161#define	AR_FrmRcvOK		0x00000002	/* frame reception success */
162#define	AR_CRCErr		0x00000004	/* CRC error */
163#define	AR_DecryptCRCErr	0x00000008	/* Decryption CRC fiailure */
164#define	AR_PHYErr		0x00000010	/* PHY error */
165#define	AR_MichaelErr		0x00000020	/* Michae MIC decrypt error */
166/* bits 6-7 are reserved */
167#define	AR_KeyIdxValid		0x00000100	/* decryption key index valid */
168#define	AR_KeyIdx		0x0000fe00	/* Decryption key index */
169#define	AR_KeyIdx_S		9
170#define	AR_RcvTimestamp		0x7fff0000	/* timestamp */
171#define	AR_RcvTimestamp_S	16
172#define	AR_KeyCacheMiss		0x80000000	/* key cache miss indication */
173
174/* NB: phy error code overlays key index and valid fields */
175#define	AR_PHYErrCode		0x0000ff00	/* PHY error code */
176#define	AR_PHYErrCode_S		8
177
178#endif /* _ATH_AR5212_DESC_H_ */
179