350 lines
9.0 KiB
C
350 lines
9.0 KiB
C
/*
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* Intel Wireless Multicomm 3200 WiFi driver
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*
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* Copyright (C) 2009 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* Intel Corporation <ilw@linux.intel.com>
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* Samuel Ortiz <samuel.ortiz@intel.com>
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* Zhu Yi <yi.zhu@intel.com>
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*
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*/
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#ifndef __IWM_H__
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#define __IWM_H__
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#include <linux/netdevice.h>
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#include <linux/wireless.h>
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#include <net/cfg80211.h>
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#include "debug.h"
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#include "hal.h"
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#include "umac.h"
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#include "lmac.h"
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#include "eeprom.h"
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#define IWM_COPYRIGHT "Copyright(c) 2009 Intel Corporation"
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#define IWM_AUTHOR "<ilw@linux.intel.com>"
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#define IWM_SRC_LMAC UMAC_HDI_IN_SOURCE_FHRX
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#define IWM_SRC_UDMA UMAC_HDI_IN_SOURCE_UDMA
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#define IWM_SRC_UMAC UMAC_HDI_IN_SOURCE_FW
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#define IWM_SRC_NUM 3
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#define IWM_POWER_INDEX_MIN 0
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#define IWM_POWER_INDEX_MAX 5
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#define IWM_POWER_INDEX_DEFAULT 3
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struct iwm_conf {
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u32 sdio_ior_timeout;
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unsigned long calib_map;
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unsigned long expected_calib_map;
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bool reset_on_fatal_err;
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bool auto_connect;
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bool wimax_not_present;
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bool enable_qos;
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u32 mode;
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u32 power_index;
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u32 frag_threshold;
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u32 rts_threshold;
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bool cts_to_self;
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u32 assoc_timeout;
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u32 roam_timeout;
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u32 wireless_mode;
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u32 coexist_mode;
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u8 ibss_band;
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u8 ibss_channel;
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u8 mac_addr[ETH_ALEN];
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};
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enum {
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COEX_MODE_SA = 1,
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COEX_MODE_XOR,
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COEX_MODE_CM,
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COEX_MODE_MAX,
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};
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struct iwm_if_ops;
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struct iwm_wifi_cmd;
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struct pool_entry {
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int id; /* group id */
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int sid; /* super group id */
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int min_pages; /* min capacity in pages */
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int max_pages; /* max capacity in pages */
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int alloc_pages; /* allocated # of pages. incresed by driver */
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int total_freed_pages; /* total freed # of pages. incresed by UMAC */
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};
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struct spool_entry {
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int id;
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int max_pages;
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int alloc_pages;
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};
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struct iwm_tx_credit {
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spinlock_t lock;
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int pool_nr;
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unsigned long full_pools_map; /* bitmap for # of filled tx pools */
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struct pool_entry pools[IWM_MACS_OUT_GROUPS];
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struct spool_entry spools[IWM_MACS_OUT_SGROUPS];
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};
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struct iwm_notif {
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struct list_head pending;
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u32 cmd_id;
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void *cmd;
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u8 src;
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void *buf;
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unsigned long buf_size;
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};
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struct iwm_sta_info {
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u8 addr[ETH_ALEN];
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bool valid;
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bool qos;
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u8 color;
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};
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struct iwm_tx_info {
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u8 sta;
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u8 color;
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u8 tid;
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};
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struct iwm_rx_info {
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unsigned long rx_size;
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unsigned long rx_buf_size;
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};
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#define IWM_NUM_KEYS 4
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struct iwm_umac_key_hdr {
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u8 mac[ETH_ALEN];
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u8 key_idx;
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u8 multicast; /* BCast encrypt & BCast decrypt of frames FROM mac */
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} __attribute__ ((packed));
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struct iwm_key {
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struct iwm_umac_key_hdr hdr;
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u32 cipher;
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u8 key[WLAN_MAX_KEY_LEN];
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u8 seq[IW_ENCODE_SEQ_MAX_SIZE];
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int key_len;
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int seq_len;
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};
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#define IWM_RX_ID_HASH 0xff
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#define IWM_RX_ID_GET_HASH(id) ((id) % IWM_RX_ID_HASH)
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#define IWM_STA_TABLE_NUM 16
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#define IWM_TX_LIST_SIZE 64
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#define IWM_RX_LIST_SIZE 256
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#define IWM_SCAN_ID_MAX 0xff
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#define IWM_STATUS_READY 0
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#define IWM_STATUS_SCANNING 1
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#define IWM_STATUS_SCAN_ABORTING 2
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#define IWM_STATUS_SME_CONNECTING 3
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#define IWM_STATUS_ASSOCIATED 4
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#define IWM_STATUS_RESETTING 5
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struct iwm_tx_queue {
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int id;
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struct sk_buff_head queue;
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struct workqueue_struct *wq;
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struct work_struct worker;
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u8 concat_buf[IWM_HAL_CONCATENATE_BUF_SIZE];
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int concat_count;
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u8 *concat_ptr;
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};
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/* Queues 0 ~ 3 for AC data, 5 for iPAN */
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#define IWM_TX_QUEUES 5
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#define IWM_TX_DATA_QUEUES 4
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#define IWM_TX_CMD_QUEUE 4
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struct iwm_bss_info {
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struct list_head node;
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struct cfg80211_bss *cfg_bss;
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struct iwm_umac_notif_bss_info *bss;
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};
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typedef int (*iwm_handler)(struct iwm_priv *priv, u8 *buf,
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unsigned long buf_size, struct iwm_wifi_cmd *cmd);
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#define IWM_WATCHDOG_PERIOD (6 * HZ)
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struct iwm_priv {
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struct wireless_dev *wdev;
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struct iwm_if_ops *bus_ops;
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struct iwm_conf conf;
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unsigned long status;
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struct list_head pending_notif;
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wait_queue_head_t notif_queue;
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wait_queue_head_t nonwifi_queue;
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unsigned long calib_done_map;
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struct {
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u8 *buf;
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u32 size;
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} calib_res[CALIBRATION_CMD_NUM];
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struct iwm_umac_profile *umac_profile;
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bool umac_profile_active;
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u8 bssid[ETH_ALEN];
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u8 channel;
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u16 rate;
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u32 txpower;
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struct iwm_sta_info sta_table[IWM_STA_TABLE_NUM];
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struct list_head bss_list;
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void (*nonwifi_rx_handlers[UMAC_HDI_IN_OPCODE_NONWIFI_MAX])
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(struct iwm_priv *priv, u8 *buf, unsigned long buf_size);
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const iwm_handler *umac_handlers;
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const iwm_handler *lmac_handlers;
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DECLARE_BITMAP(lmac_handler_map, LMAC_COMMAND_ID_NUM);
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DECLARE_BITMAP(umac_handler_map, LMAC_COMMAND_ID_NUM);
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DECLARE_BITMAP(udma_handler_map, LMAC_COMMAND_ID_NUM);
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struct list_head wifi_pending_cmd;
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struct list_head nonwifi_pending_cmd;
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u16 wifi_seq_num;
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u8 nonwifi_seq_num;
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spinlock_t cmd_lock;
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u32 core_enabled;
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u8 scan_id;
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struct cfg80211_scan_request *scan_request;
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struct sk_buff_head rx_list;
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struct list_head rx_tickets;
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struct list_head rx_packets[IWM_RX_ID_HASH + 1];
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struct workqueue_struct *rx_wq;
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struct work_struct rx_worker;
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struct iwm_tx_credit tx_credit;
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struct iwm_tx_queue txq[IWM_TX_QUEUES];
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struct iwm_key keys[IWM_NUM_KEYS];
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s8 default_key;
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DECLARE_BITMAP(wifi_ntfy, WIFI_IF_NTFY_MAX);
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wait_queue_head_t wifi_ntfy_queue;
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wait_queue_head_t mlme_queue;
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struct iw_statistics wstats;
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struct delayed_work stats_request;
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struct delayed_work disconnect;
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struct iwm_debugfs dbg;
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u8 *eeprom;
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struct timer_list watchdog;
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struct work_struct reset_worker;
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struct mutex mutex;
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u8 *req_ie;
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int req_ie_len;
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u8 *resp_ie;
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int resp_ie_len;
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struct iwm_fw_error_hdr *last_fw_err;
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char private[0] __attribute__((__aligned__(NETDEV_ALIGN)));
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};
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static inline void *iwm_private(struct iwm_priv *iwm)
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{
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BUG_ON(!iwm);
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return &iwm->private;
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}
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#define hw_to_iwm(h) (h->iwm)
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#define iwm_to_dev(i) (wiphy_dev(i->wdev->wiphy))
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#define iwm_to_wiphy(i) (i->wdev->wiphy)
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#define wiphy_to_iwm(w) (struct iwm_priv *)(wiphy_priv(w))
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#define iwm_to_wdev(i) (i->wdev)
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#define wdev_to_iwm(w) (struct iwm_priv *)(wdev_priv(w))
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#define iwm_to_ndev(i) (i->wdev->netdev)
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#define ndev_to_iwm(n) (wdev_to_iwm(n->ieee80211_ptr))
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#define skb_to_rx_info(s) ((struct iwm_rx_info *)(s->cb))
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#define skb_to_tx_info(s) ((struct iwm_tx_info *)s->cb)
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void *iwm_if_alloc(int sizeof_bus, struct device *dev,
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struct iwm_if_ops *if_ops);
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void iwm_if_free(struct iwm_priv *iwm);
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int iwm_if_add(struct iwm_priv *iwm);
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void iwm_if_remove(struct iwm_priv *iwm);
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int iwm_mode_to_nl80211_iftype(int mode);
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int iwm_priv_init(struct iwm_priv *iwm);
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void iwm_priv_deinit(struct iwm_priv *iwm);
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void iwm_reset(struct iwm_priv *iwm);
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void iwm_resetting(struct iwm_priv *iwm);
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void iwm_tx_credit_init_pools(struct iwm_priv *iwm,
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struct iwm_umac_notif_alive *alive);
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int iwm_tx_credit_alloc(struct iwm_priv *iwm, int id, int nb);
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int iwm_notif_send(struct iwm_priv *iwm, struct iwm_wifi_cmd *cmd,
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u8 cmd_id, u8 source, u8 *buf, unsigned long buf_size);
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int iwm_notif_handle(struct iwm_priv *iwm, u32 cmd, u8 source, long timeout);
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void iwm_init_default_profile(struct iwm_priv *iwm,
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struct iwm_umac_profile *profile);
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void iwm_link_on(struct iwm_priv *iwm);
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void iwm_link_off(struct iwm_priv *iwm);
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int iwm_up(struct iwm_priv *iwm);
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int iwm_down(struct iwm_priv *iwm);
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/* TX API */
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void iwm_tx_credit_inc(struct iwm_priv *iwm, int id, int total_freed_pages);
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void iwm_tx_worker(struct work_struct *work);
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int iwm_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
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/* RX API */
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void iwm_rx_setup_handlers(struct iwm_priv *iwm);
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int iwm_rx_handle(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size);
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int iwm_rx_handle_resp(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size,
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struct iwm_wifi_cmd *cmd);
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void iwm_rx_free(struct iwm_priv *iwm);
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#endif
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