/* * Copyright (C) 2002 Intersil Americas Inc. * Copyright (C) 2003 Herbert Valerio Riedel * Copyright (C) 2003 Luis R. Rodriguez * Copyright (C) 2003 Aurelien Alleaume * * 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 * * 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 * */ #ifndef _ISLPCI_DEV_H #define _ISLPCI_DEV_H #include #include #include #include #include #include "isl_38xx.h" #include "isl_oid.h" #include "islpci_mgt.h" /* some states might not be superflous and may be removed when design is finalized (hvr) */ typedef enum { PRV_STATE_OFF = 0, /* this means hw_unavailable is != 0 */ PRV_STATE_PREBOOT, /* we are in a pre-boot state (empty RAM) */ PRV_STATE_BOOT, /* boot state (fw upload, run fw) */ PRV_STATE_POSTBOOT, /* after boot state, need reset now */ PRV_STATE_PREINIT, /* pre-init state */ PRV_STATE_INIT, /* init state (restore MIB backup to device) */ PRV_STATE_READY, /* driver&device are in operational state */ PRV_STATE_SLEEP /* device in sleep mode */ } islpci_state_t; /* ACL using MAC address */ struct mac_entry { struct list_head _list; char addr[ETH_ALEN]; }; struct islpci_acl { enum { MAC_POLICY_OPEN=0, MAC_POLICY_ACCEPT=1, MAC_POLICY_REJECT=2 } policy; struct list_head mac_list; /* a list of mac_entry */ int size; /* size of queue */ struct mutex lock; /* accessed in ioctls and trap_work */ }; struct islpci_membuf { int size; /* size of memory */ void *mem; /* address of memory as seen by CPU */ dma_addr_t pci_addr; /* address of memory as seen by device */ }; #define MAX_BSS_WPA_IE_COUNT 64 #define MAX_WPA_IE_LEN 64 struct islpci_bss_wpa_ie { struct list_head list; unsigned long last_update; u8 bssid[ETH_ALEN]; u8 wpa_ie[MAX_WPA_IE_LEN]; size_t wpa_ie_len; }; typedef struct { spinlock_t slock; /* generic spinlock; */ u32 priv_oid; /* our mib cache */ u32 iw_mode; struct rw_semaphore mib_sem; void **mib; char nickname[IW_ESSID_MAX_SIZE+1]; /* Take care of the wireless stats */ struct work_struct stats_work; struct mutex stats_lock; /* remember when we last updated the stats */ unsigned long stats_timestamp; /* The first is accessed under semaphore locking. * The second is the clean one we return to iwconfig. */ struct iw_statistics local_iwstatistics; struct iw_statistics iwstatistics; struct iw_spy_data spy_data; /* iwspy support */ struct iw_public_data wireless_data; int monitor_type; /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_PRISM */ struct islpci_acl acl; /* PCI bus allocation & configuration members */ struct pci_dev *pdev; /* PCI structure information */ char firmware[33]; void __iomem *device_base; /* ioremapped device base address */ /* consistent DMA region */ void *driver_mem_address; /* base DMA address */ dma_addr_t device_host_address; /* base DMA address (bus address) */ dma_addr_t device_psm_buffer; /* host memory for PSM buffering (bus address) */ /* our network_device structure */ struct net_device *ndev; /* device queue interface members */ struct isl38xx_cb *control_block; /* device control block (== driver_mem_address!) */ /* Each queue has three indexes: * free/index_mgmt/data_rx/tx (called index, see below), * driver_curr_frag, and device_curr_frag (in the control block) * All indexes are ever-increasing, but interpreted modulo the * device queue size when used. * index <= device_curr_frag <= driver_curr_frag at all times * For rx queues, [index, device_curr_frag) contains fragments * that the interrupt processing needs to handle (owned by driver). * [device_curr_frag, driver_curr_frag) is the free space in the * rx queue, waiting for data (owned by device). The driver * increments driver_curr_frag to indicate to the device that more * buffers are available. * If device_curr_frag == driver_curr_frag, no more rx buffers are * available, and the rx DMA engine of the device is halted. * For tx queues, [index, device_curr_frag) contains fragments * where tx is done; they need to be freed (owned by driver). * [device_curr_frag, driver_curr_frag) contains the frames * that are being transferred (owned by device). The driver * increments driver_curr_frag to indicate that more tx work * needs to be done. */ u32 index_mgmt_rx; /* real index mgmt rx queue */ u32 index_mgmt_tx; /* read index mgmt tx queue */ u32 free_data_rx; /* free pointer data rx queue */ u32 free_data_tx; /* free pointer data tx queue */ u32 data_low_tx_full; /* full detected flag */ /* frame memory buffers for the device queues */ struct islpci_membuf mgmt_tx[ISL38XX_CB_MGMT_QSIZE]; struct islpci_membuf mgmt_rx[ISL38XX_CB_MGMT_QSIZE]; struct sk_buff *data_low_tx[ISL38XX_CB_TX_QSIZE]; struct sk_buff *data_low_rx[ISL38XX_CB_RX_QSIZE]; dma_addr_t pci_map_tx_address[ISL38XX_CB_TX_QSIZE]; dma_addr_t pci_map_rx_address[ISL38XX_CB_RX_QSIZE]; /* driver network interface members */ struct net_device_stats statistics; /* wait for a reset interrupt */ wait_queue_head_t reset_done; /* used by islpci_mgt_transaction */ struct mutex mgmt_lock; /* serialize access to mailbox and wqueue */ struct islpci_mgmtframe *mgmt_received; /* mbox for incoming frame */ wait_queue_head_t mgmt_wqueue; /* waitqueue for mbox */ /* state machine */ islpci_state_t state; int state_off; /* enumeration of off-state, if 0 then * we're not in any off-state */ /* WPA stuff */ int wpa; /* WPA mode enabled */ struct list_head bss_wpa_list; int num_bss_wpa; struct mutex wpa_lock; u8 wpa_ie[MAX_WPA_IE_LEN]; size_t wpa_ie_len; struct work_struct reset_task; int reset_task_pending; } islpci_private; static inline islpci_state_t islpci_get_state(islpci_private *priv) { /* lock */ return priv->state; /* unlock */ } islpci_state_t islpci_set_state(islpci_private *priv, islpci_state_t new_state); #define ISLPCI_TX_TIMEOUT (2*HZ) irqreturn_t islpci_interrupt(int, void *); int prism54_post_setup(islpci_private *, int); int islpci_reset(islpci_private *, int); static inline void islpci_trigger(islpci_private *priv) { isl38xx_trigger_device(islpci_get_state(priv) == PRV_STATE_SLEEP, priv->device_base); } int islpci_free_memory(islpci_private *); struct net_device *islpci_setup(struct pci_dev *); #define DRV_NAME "prism54" #define DRV_VERSION "1.2" #endif /* _ISLPCI_DEV_H */