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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Dmitry Torokhov93b2dd12006-10-08 00:38:15 -04002 * Copyright (C) 2002 Intersil Americas Inc.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Copyright (C) 2003 Herbert Valerio Riedel <hvr@gnu.org>
4 * Copyright (C) 2003 Luis R. Rodriguez <mcgrof@ruslug.rutgers.edu>
5 * Copyright (C) 2003 Aurelien Alleaume <slts@free.fr>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#ifndef _ISLPCI_DEV_H
23#define _ISLPCI_DEV_H
24
Alexey Dobriyana6b7a402011-06-06 10:43:46 +000025#include <linux/irqreturn.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/netdevice.h>
27#include <linux/wireless.h>
28#include <net/iw_handler.h>
29#include <linux/list.h>
Matthias Kaehlcke1b34fd32007-11-05 09:41:01 +010030#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
32#include "isl_38xx.h"
33#include "isl_oid.h"
34#include "islpci_mgt.h"
35
36/* some states might not be superflous and may be removed when
37 design is finalized (hvr) */
38typedef enum {
39 PRV_STATE_OFF = 0, /* this means hw_unavailable is != 0 */
40 PRV_STATE_PREBOOT, /* we are in a pre-boot state (empty RAM) */
41 PRV_STATE_BOOT, /* boot state (fw upload, run fw) */
42 PRV_STATE_POSTBOOT, /* after boot state, need reset now */
43 PRV_STATE_PREINIT, /* pre-init state */
44 PRV_STATE_INIT, /* init state (restore MIB backup to device) */
45 PRV_STATE_READY, /* driver&device are in operational state */
46 PRV_STATE_SLEEP /* device in sleep mode */
47} islpci_state_t;
48
49/* ACL using MAC address */
50struct mac_entry {
51 struct list_head _list;
52 char addr[ETH_ALEN];
53};
54
55struct islpci_acl {
56 enum { MAC_POLICY_OPEN=0, MAC_POLICY_ACCEPT=1, MAC_POLICY_REJECT=2 } policy;
57 struct list_head mac_list; /* a list of mac_entry */
58 int size; /* size of queue */
Matthias Kaehlcke6f865c02008-02-15 20:56:48 +010059 struct mutex lock; /* accessed in ioctls and trap_work */
Linus Torvalds1da177e2005-04-16 15:20:36 -070060};
61
62struct islpci_membuf {
63 int size; /* size of memory */
64 void *mem; /* address of memory as seen by CPU */
65 dma_addr_t pci_addr; /* address of memory as seen by device */
66};
67
68#define MAX_BSS_WPA_IE_COUNT 64
69#define MAX_WPA_IE_LEN 64
70struct islpci_bss_wpa_ie {
71 struct list_head list;
72 unsigned long last_update;
73 u8 bssid[ETH_ALEN];
74 u8 wpa_ie[MAX_WPA_IE_LEN];
75 size_t wpa_ie_len;
Dmitry Torokhov93b2dd12006-10-08 00:38:15 -040076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077};
78
79typedef struct {
80 spinlock_t slock; /* generic spinlock; */
Dmitry Torokhov93b2dd12006-10-08 00:38:15 -040081
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 u32 priv_oid;
83
84 /* our mib cache */
85 u32 iw_mode;
86 struct rw_semaphore mib_sem;
87 void **mib;
88 char nickname[IW_ESSID_MAX_SIZE+1];
Dmitry Torokhov93b2dd12006-10-08 00:38:15 -040089
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 /* Take care of the wireless stats */
91 struct work_struct stats_work;
Matthias Kaehlckef8139212008-02-15 20:56:59 +010092 struct mutex stats_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 /* remember when we last updated the stats */
94 unsigned long stats_timestamp;
95 /* The first is accessed under semaphore locking.
96 * The second is the clean one we return to iwconfig.
97 */
98 struct iw_statistics local_iwstatistics;
99 struct iw_statistics iwstatistics;
100
101 struct iw_spy_data spy_data; /* iwspy support */
102
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 struct iw_public_data wireless_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
105 int monitor_type; /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_PRISM */
106
107 struct islpci_acl acl;
108
109 /* PCI bus allocation & configuration members */
110 struct pci_dev *pdev; /* PCI structure information */
111 char firmware[33];
112
113 void __iomem *device_base; /* ioremapped device base address */
114
115 /* consistent DMA region */
116 void *driver_mem_address; /* base DMA address */
117 dma_addr_t device_host_address; /* base DMA address (bus address) */
118 dma_addr_t device_psm_buffer; /* host memory for PSM buffering (bus address) */
119
120 /* our network_device structure */
121 struct net_device *ndev;
122
123 /* device queue interface members */
Dmitry Torokhov93b2dd12006-10-08 00:38:15 -0400124 struct isl38xx_cb *control_block; /* device control block
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 (== driver_mem_address!) */
126
127 /* Each queue has three indexes:
128 * free/index_mgmt/data_rx/tx (called index, see below),
129 * driver_curr_frag, and device_curr_frag (in the control block)
130 * All indexes are ever-increasing, but interpreted modulo the
131 * device queue size when used.
132 * index <= device_curr_frag <= driver_curr_frag at all times
133 * For rx queues, [index, device_curr_frag) contains fragments
134 * that the interrupt processing needs to handle (owned by driver).
135 * [device_curr_frag, driver_curr_frag) is the free space in the
136 * rx queue, waiting for data (owned by device). The driver
137 * increments driver_curr_frag to indicate to the device that more
138 * buffers are available.
139 * If device_curr_frag == driver_curr_frag, no more rx buffers are
140 * available, and the rx DMA engine of the device is halted.
141 * For tx queues, [index, device_curr_frag) contains fragments
142 * where tx is done; they need to be freed (owned by driver).
143 * [device_curr_frag, driver_curr_frag) contains the frames
144 * that are being transferred (owned by device). The driver
145 * increments driver_curr_frag to indicate that more tx work
146 * needs to be done.
147 */
148 u32 index_mgmt_rx; /* real index mgmt rx queue */
149 u32 index_mgmt_tx; /* read index mgmt tx queue */
150 u32 free_data_rx; /* free pointer data rx queue */
151 u32 free_data_tx; /* free pointer data tx queue */
152 u32 data_low_tx_full; /* full detected flag */
153
154 /* frame memory buffers for the device queues */
155 struct islpci_membuf mgmt_tx[ISL38XX_CB_MGMT_QSIZE];
156 struct islpci_membuf mgmt_rx[ISL38XX_CB_MGMT_QSIZE];
157 struct sk_buff *data_low_tx[ISL38XX_CB_TX_QSIZE];
158 struct sk_buff *data_low_rx[ISL38XX_CB_RX_QSIZE];
159 dma_addr_t pci_map_tx_address[ISL38XX_CB_TX_QSIZE];
160 dma_addr_t pci_map_rx_address[ISL38XX_CB_RX_QSIZE];
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 /* wait for a reset interrupt */
163 wait_queue_head_t reset_done;
164
165 /* used by islpci_mgt_transaction */
Matthias Kaehlcke1b34fd32007-11-05 09:41:01 +0100166 struct mutex mgmt_lock; /* serialize access to mailbox and wqueue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 struct islpci_mgmtframe *mgmt_received; /* mbox for incoming frame */
168 wait_queue_head_t mgmt_wqueue; /* waitqueue for mbox */
169
170 /* state machine */
171 islpci_state_t state;
172 int state_off; /* enumeration of off-state, if 0 then
173 * we're not in any off-state */
174
175 /* WPA stuff */
176 int wpa; /* WPA mode enabled */
177 struct list_head bss_wpa_list;
178 int num_bss_wpa;
Matthias Kaehlckef948db52008-02-15 20:57:07 +0100179 struct mutex wpa_lock;
Dan Williamseab411f2006-07-17 21:21:47 -0400180 u8 wpa_ie[MAX_WPA_IE_LEN];
181 size_t wpa_ie_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183 struct work_struct reset_task;
184 int reset_task_pending;
185} islpci_private;
186
187static inline islpci_state_t
188islpci_get_state(islpci_private *priv)
189{
190 /* lock */
191 return priv->state;
192 /* unlock */
193}
194
195islpci_state_t islpci_set_state(islpci_private *priv, islpci_state_t new_state);
196
197#define ISLPCI_TX_TIMEOUT (2*HZ)
198
David Howells7d12e782006-10-05 14:55:46 +0100199irqreturn_t islpci_interrupt(int, void *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201int prism54_post_setup(islpci_private *, int);
202int islpci_reset(islpci_private *, int);
203
204static inline void
205islpci_trigger(islpci_private *priv)
206{
207 isl38xx_trigger_device(islpci_get_state(priv) == PRV_STATE_SLEEP,
208 priv->device_base);
209}
210
211int islpci_free_memory(islpci_private *);
212struct net_device *islpci_setup(struct pci_dev *);
Kai Engertff86a542006-12-12 21:09:41 +0100213
214#define DRV_NAME "prism54"
215#define DRV_VERSION "1.2"
216
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217#endif /* _ISLPCI_DEV_H */