aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/rt2x00/rt2800usb.h
blob: 1e4340a182ef2d68bea70ec0eea6c3980d1ba417 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/*
	Copyright (C) 2009 Ivo van Doorn <IvDoorn@gmail.com>
	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
	Copyright (C) 2009 Axel Kollhofer <rain_maker@root-forum.org>
	<http://rt2x00.serialmonkey.com>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the
	Free Software Foundation, Inc.,
	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*
	Module: rt2800usb
	Abstract: Data structures and registers for the rt2800usb module.
	Supported chipsets: RT2800U.
 */

#ifndef RT2800USB_H
#define RT2800USB_H

/*
 * USB registers.
 */

/*
 * USB_DMA_CFG
 * RX_BULK_AGG_TIMEOUT: Rx Bulk Aggregation TimeOut in unit of 33ns.
 * RX_BULK_AGG_LIMIT: Rx Bulk Aggregation Limit in unit of 256 bytes.
 * PHY_CLEAR: phy watch dog enable.
 * TX_CLEAR: Clear USB DMA TX path.
 * TXOP_HALT: Halt TXOP count down when TX buffer is full.
 * RX_BULK_AGG_EN: Enable Rx Bulk Aggregation.
 * RX_BULK_EN: Enable USB DMA Rx.
 * TX_BULK_EN: Enable USB DMA Tx.
 * EP_OUT_VALID: OUT endpoint data valid.
 * RX_BUSY: USB DMA RX FSM busy.
 * TX_BUSY: USB DMA TX FSM busy.
 */
#define USB_DMA_CFG			0x02a0
#define USB_DMA_CFG_RX_BULK_AGG_TIMEOUT	FIELD32(0x000000ff)
#define USB_DMA_CFG_RX_BULK_AGG_LIMIT	FIELD32(0x0000ff00)
#define USB_DMA_CFG_PHY_CLEAR		FIELD32(0x00010000)
#define USB_DMA_CFG_TX_CLEAR		FIELD32(0x00080000)
#define USB_DMA_CFG_TXOP_HALT		FIELD32(0x00100000)
#define USB_DMA_CFG_RX_BULK_AGG_EN	FIELD32(0x00200000)
#define USB_DMA_CFG_RX_BULK_EN		FIELD32(0x00400000)
#define USB_DMA_CFG_TX_BULK_EN		FIELD32(0x00800000)
#define USB_DMA_CFG_EP_OUT_VALID	FIELD32(0x3f000000)
#define USB_DMA_CFG_RX_BUSY		FIELD32(0x40000000)
#define USB_DMA_CFG_TX_BUSY		FIELD32(0x80000000)

/*
 * USB_CYC_CFG
 */
#define USB_CYC_CFG			0x02a4
#define USB_CYC_CFG_CLOCK_CYCLE		FIELD32(0x000000ff)

/*
 * 8051 firmware image.
 */
#define FIRMWARE_RT2870			"rt2870.bin"
#define FIRMWARE_IMAGE_BASE		0x3000

/*
 * DMA descriptor defines.
 */
#define TXINFO_DESC_SIZE		( 1 * sizeof(__le32) )
#define RXINFO_DESC_SIZE		( 1 * sizeof(__le32) )

/*
 * TX Info structure
 */

/*
 * Word0
 * WIV: Wireless Info Valid. 1: Driver filled WI,  0: DMA needs to copy WI
 * QSEL: Select on-chip FIFO ID for 2nd-stage output scheduler.
 *       0:MGMT, 1:HCCA 2:EDCA
 * USB_DMA_NEXT_VALID: Used ONLY in USB bulk Aggregation, NextValid
 * DMA_TX_BURST: used ONLY in USB bulk Aggregation.
 *               Force USB DMA transmit frame from current selected endpoint
 */
#define TXINFO_W0_USB_DMA_TX_PKT_LEN	FIELD32(0x0000ffff)
#define TXINFO_W0_WIV			FIELD32(0x01000000)
#define TXINFO_W0_QSEL			FIELD32(0x06000000)
#define TXINFO_W0_SW_USE_LAST_ROUND	FIELD32(0x08000000)
#define TXINFO_W0_USB_DMA_NEXT_VALID	FIELD32(0x40000000)
#define TXINFO_W0_USB_DMA_TX_BURST	FIELD32(0x80000000)

/*
 * RX descriptor format for RX Ring.
 */

/*
 * Word0
 * UNICAST_TO_ME: This RX frame is unicast to me.
 * MULTICAST: This is a multicast frame.
 * BROADCAST: This is a broadcast frame.
 * MY_BSS: this frame belongs to the same BSSID.
 * CRC_ERROR: CRC error.
 * CIPHER_ERROR: 0: decryption okay, 1:ICV error, 2:MIC error, 3:KEY not valid.
 * AMSDU: rx with 802.3 header, not 802.11 header.
 */

#define RXINFO_W0_BA			FIELD32(0x00000001)
#define RXINFO_W0_DATA			FIELD32(0x00000002)
#define RXINFO_W0_NULLDATA		FIELD32(0x00000004)
#define RXINFO_W0_FRAG			FIELD32(0x00000008)
#define RXINFO_W0_UNICAST_TO_ME		FIELD32(0x00000010)
#define RXINFO_W0_MULTICAST		FIELD32(0x00000020)
#define RXINFO_W0_BROADCAST		FIELD32(0x00000040)
#define RXINFO_W0_MY_BSS		FIELD32(0x00000080)
#define RXINFO_W0_CRC_ERROR		FIELD32(0x00000100)
#define RXINFO_W0_CIPHER_ERROR		FIELD32(0x00000600)
#define RXINFO_W0_AMSDU			FIELD32(0x00000800)
#define RXINFO_W0_HTC			FIELD32(0x00001000)
#define RXINFO_W0_RSSI			FIELD32(0x00002000)
#define RXINFO_W0_L2PAD			FIELD32(0x00004000)
#define RXINFO_W0_AMPDU			FIELD32(0x00008000)
#define RXINFO_W0_DECRYPTED		FIELD32(0x00010000)
#define RXINFO_W0_PLCP_RSSI		FIELD32(0x00020000)
#define RXINFO_W0_CIPHER_ALG		FIELD32(0x00040000)
#define RXINFO_W0_LAST_AMSDU		FIELD32(0x00080000)
#define RXINFO_W0_PLCP_SIGNAL		FIELD32(0xfff00000)

#endif /* RT2800USB_H */