Greg Hartman | 76d05dc | 2016-11-23 15:51:27 -0800 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net> |
| 6 | * Original from Linux kernel 2.6.30. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer, |
| 13 | * without modification. |
| 14 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 15 | * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any |
| 16 | * redistribution must be conditioned upon including a substantially |
| 17 | * similar Disclaimer requirement for further binary redistribution. |
| 18 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 19 | * of any contributors may be used to endorse or promote products derived |
| 20 | * from this software without specific prior written permission. |
| 21 | * |
| 22 | * Alternatively, this software may be distributed under the terms of the |
| 23 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 24 | * Software Foundation. |
| 25 | * |
| 26 | * NO WARRANTY |
| 27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 28 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 29 | * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY |
| 30 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| 31 | * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, |
| 32 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 33 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 34 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| 35 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 36 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 37 | * THE POSSIBILITY OF SUCH DAMAGES. |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | /* |
| 42 | * Defintions for the Atheros Wireless LAN controller driver. |
| 43 | */ |
| 44 | #ifndef _DEV_ATH_ATHVAR_H |
| 45 | #define _DEV_ATH_ATHVAR_H |
| 46 | |
| 47 | FILE_LICENCE ( BSD3 ); |
| 48 | |
| 49 | #include "ath5k.h" |
| 50 | #include <gpxe/iobuf.h> |
| 51 | |
| 52 | #define ATH_RXBUF 16 /* number of RX buffers */ |
| 53 | #define ATH_TXBUF 16 /* number of TX buffers */ |
| 54 | |
| 55 | struct ath5k_buf { |
| 56 | struct list_head list; |
| 57 | unsigned int flags; /* rx descriptor flags */ |
| 58 | struct ath5k_desc *desc; /* virtual addr of desc */ |
| 59 | u32 daddr; /* physical addr of desc */ |
| 60 | struct io_buffer *iob; /* I/O buffer for buf */ |
| 61 | u32 iobaddr;/* physical addr of iob data */ |
| 62 | }; |
| 63 | |
| 64 | /* |
| 65 | * Data transmit queue state. One of these exists for each |
| 66 | * hardware transmit queue. Packets sent to us from above |
| 67 | * are assigned to queues based on their priority. Not all |
| 68 | * devices support a complete set of hardware transmit queues. |
| 69 | * For those devices the array sc_ac2q will map multiple |
| 70 | * priorities to fewer hardware queues (typically all to one |
| 71 | * hardware queue). |
| 72 | */ |
| 73 | struct ath5k_txq { |
| 74 | unsigned int qnum; /* hardware q number */ |
| 75 | u32 *link; /* link ptr in last TX desc */ |
| 76 | struct list_head q; /* transmit queue */ |
| 77 | int setup; |
| 78 | }; |
| 79 | |
| 80 | #if CHAN_DEBUG |
| 81 | #define ATH_CHAN_MAX (26+26+26+200+200) |
| 82 | #else |
| 83 | #define ATH_CHAN_MAX (14+14+14+252+20) |
| 84 | #endif |
| 85 | |
| 86 | /* Software Carrier, keeps track of the driver state |
| 87 | * associated with an instance of a device */ |
| 88 | struct ath5k_softc { |
| 89 | struct pci_device *pdev; /* for dma mapping */ |
| 90 | void *iobase; /* address of the device */ |
| 91 | struct net80211_device *dev; /* IEEE 802.11 common */ |
| 92 | struct ath5k_hw *ah; /* Atheros HW */ |
| 93 | struct net80211_hw_info *hwinfo; |
| 94 | int curband; |
| 95 | int irq_ena; /* interrupts enabled */ |
| 96 | |
| 97 | struct ath5k_buf *bufptr; /* allocated buffer ptr */ |
| 98 | struct ath5k_desc *desc; /* TX/RX descriptors */ |
| 99 | u32 desc_daddr; /* DMA (physical) address */ |
| 100 | size_t desc_len; /* size of TX/RX descriptors */ |
| 101 | u16 cachelsz; /* cache line size */ |
| 102 | |
| 103 | int status; |
| 104 | #define ATH_STAT_INVALID 0x01 /* disable hardware accesses */ |
| 105 | #define ATH_STAT_MRRETRY 0x02 /* multi-rate retry support */ |
| 106 | #define ATH_STAT_PROMISC 0x04 |
| 107 | #define ATH_STAT_LEDSOFT 0x08 /* enable LED gpio status */ |
| 108 | #define ATH_STAT_STARTED 0x10 /* opened & irqs enabled */ |
| 109 | |
| 110 | unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */ |
| 111 | unsigned int curmode; /* current phy mode */ |
| 112 | struct net80211_channel *curchan; /* current h/w channel */ |
| 113 | |
| 114 | enum ath5k_int imask; /* interrupt mask copy */ |
| 115 | |
| 116 | u8 bssidmask[ETH_ALEN]; |
| 117 | |
| 118 | unsigned int rxbufsize; /* rx size based on mtu */ |
| 119 | struct list_head rxbuf; /* receive buffer */ |
| 120 | u32 *rxlink; /* link ptr in last RX desc */ |
| 121 | |
| 122 | struct list_head txbuf; /* transmit buffer */ |
| 123 | unsigned int txbuf_len; /* buf count in txbuf list */ |
| 124 | struct ath5k_txq txq; /* tx queue */ |
| 125 | |
| 126 | struct { |
| 127 | u16 gpio; |
| 128 | unsigned polarity; |
| 129 | } rf_kill; |
| 130 | |
| 131 | int last_calib_ticks; |
| 132 | |
| 133 | int power_level; /* Requested tx power in dbm */ |
| 134 | int assoc; /* assocate state */ |
| 135 | |
| 136 | int hw_rate; /* Hardware tx rate code */ |
| 137 | int hw_rtscts_rate; /* Hardware rts/cts rate code */ |
| 138 | }; |
| 139 | |
| 140 | #define ath5k_hw_hasbssidmask(_ah) \ |
| 141 | (ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0) |
| 142 | #define ath5k_hw_hasveol(_ah) \ |
| 143 | (ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0) |
| 144 | |
| 145 | #endif |