426 lines
9.8 KiB
C
426 lines
9.8 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __WL12XX_H__
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#define __WL12XX_H__
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#include <linux/mutex.h>
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#include <linux/completion.h>
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <linux/bitops.h>
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#include <net/mac80211.h>
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#include "conf.h"
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#include "ini.h"
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#define DRIVER_NAME "wl1271"
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#define DRIVER_PREFIX DRIVER_NAME ": "
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enum {
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DEBUG_NONE = 0,
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DEBUG_IRQ = BIT(0),
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DEBUG_SPI = BIT(1),
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DEBUG_BOOT = BIT(2),
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DEBUG_MAILBOX = BIT(3),
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DEBUG_TESTMODE = BIT(4),
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DEBUG_EVENT = BIT(5),
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DEBUG_TX = BIT(6),
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DEBUG_RX = BIT(7),
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DEBUG_SCAN = BIT(8),
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DEBUG_CRYPT = BIT(9),
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DEBUG_PSM = BIT(10),
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DEBUG_MAC80211 = BIT(11),
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DEBUG_CMD = BIT(12),
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DEBUG_ACX = BIT(13),
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DEBUG_SDIO = BIT(14),
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DEBUG_FILTERS = BIT(15),
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DEBUG_ADHOC = BIT(16),
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DEBUG_ALL = ~0,
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};
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extern u32 wl12xx_debug_level;
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#define DEBUG_DUMP_LIMIT 1024
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#define wl1271_error(fmt, arg...) \
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pr_err(DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
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#define wl1271_warning(fmt, arg...) \
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pr_warning(DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
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#define wl1271_notice(fmt, arg...) \
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pr_info(DRIVER_PREFIX fmt "\n", ##arg)
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#define wl1271_info(fmt, arg...) \
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pr_info(DRIVER_PREFIX fmt "\n", ##arg)
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#define wl1271_debug(level, fmt, arg...) \
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do { \
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if (level & wl12xx_debug_level) \
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pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
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} while (0)
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/* TODO: use pr_debug_hex_dump when it will be available */
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#define wl1271_dump(level, prefix, buf, len) \
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do { \
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if (level & wl12xx_debug_level) \
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print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
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DUMP_PREFIX_OFFSET, 16, 1, \
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buf, \
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min_t(size_t, len, DEBUG_DUMP_LIMIT), \
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0); \
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} while (0)
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#define wl1271_dump_ascii(level, prefix, buf, len) \
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do { \
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if (level & wl12xx_debug_level) \
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print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
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DUMP_PREFIX_OFFSET, 16, 1, \
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buf, \
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min_t(size_t, len, DEBUG_DUMP_LIMIT), \
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true); \
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} while (0)
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#define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN | \
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CFG_BSSID_FILTER_EN | \
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CFG_MC_FILTER_EN)
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#define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
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CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
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CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
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CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
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#define WL1271_FW_NAME "wl1271-fw.bin"
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#define WL1271_NVS_NAME "wl1271-nvs.bin"
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#define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
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#define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
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#define WL1271_CIPHER_SUITE_GEM 0x00147201
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#define WL1271_BUSY_WORD_CNT 1
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#define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
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#define WL1271_ELP_HW_STATE_ASLEEP 0
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#define WL1271_ELP_HW_STATE_IRQ 1
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#define WL1271_DEFAULT_BEACON_INT 100
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#define WL1271_DEFAULT_DTIM_PERIOD 1
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#define ACX_TX_DESCRIPTORS 32
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#define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
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enum wl1271_state {
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WL1271_STATE_OFF,
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WL1271_STATE_ON,
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WL1271_STATE_PLT,
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};
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enum wl1271_partition_type {
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PART_DOWN,
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PART_WORK,
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PART_DRPW,
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PART_TABLE_LEN
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};
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struct wl1271_partition {
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u32 size;
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u32 start;
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};
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struct wl1271_partition_set {
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struct wl1271_partition mem;
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struct wl1271_partition reg;
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struct wl1271_partition mem2;
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struct wl1271_partition mem3;
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};
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struct wl1271;
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/* FIXME: I'm not sure about this structure name */
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struct wl1271_chip {
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u32 id;
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char fw_ver[21];
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};
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struct wl1271_stats {
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struct acx_statistics *fw_stats;
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unsigned long fw_stats_update;
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unsigned int retry_count;
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unsigned int excessive_retries;
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};
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#define NUM_TX_QUEUES 4
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#define NUM_RX_PKT_DESC 8
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/* FW status registers */
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struct wl1271_fw_status {
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__le32 intr;
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u8 fw_rx_counter;
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u8 drv_rx_counter;
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u8 reserved;
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u8 tx_results_counter;
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__le32 rx_pkt_descs[NUM_RX_PKT_DESC];
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__le32 tx_released_blks[NUM_TX_QUEUES];
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__le32 fw_localtime;
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__le32 padding[2];
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} __packed;
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struct wl1271_rx_mem_pool_addr {
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u32 addr;
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u32 addr_extra;
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};
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struct wl1271_scan {
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struct cfg80211_scan_request *req;
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bool *scanned_ch;
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bool failed;
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u8 state;
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u8 ssid[IW_ESSID_MAX_SIZE+1];
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size_t ssid_len;
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};
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struct wl1271_if_operations {
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void (*read)(struct wl1271 *wl, int addr, void *buf, size_t len,
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bool fixed);
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void (*write)(struct wl1271 *wl, int addr, void *buf, size_t len,
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bool fixed);
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void (*reset)(struct wl1271 *wl);
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void (*init)(struct wl1271 *wl);
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int (*power)(struct wl1271 *wl, bool enable);
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struct device* (*dev)(struct wl1271 *wl);
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void (*enable_irq)(struct wl1271 *wl);
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void (*disable_irq)(struct wl1271 *wl);
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};
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struct wl1271 {
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struct platform_device *plat_dev;
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struct ieee80211_hw *hw;
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bool mac80211_registered;
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void *if_priv;
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struct wl1271_if_operations *if_ops;
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void (*set_power)(bool enable);
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int irq;
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int ref_clock;
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spinlock_t wl_lock;
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enum wl1271_state state;
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struct mutex mutex;
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#define WL1271_FLAG_STA_RATES_CHANGED (0)
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#define WL1271_FLAG_STA_ASSOCIATED (1)
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#define WL1271_FLAG_JOINED (2)
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#define WL1271_FLAG_GPIO_POWER (3)
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#define WL1271_FLAG_TX_QUEUE_STOPPED (4)
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#define WL1271_FLAG_IN_ELP (5)
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#define WL1271_FLAG_PSM (6)
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#define WL1271_FLAG_PSM_REQUESTED (7)
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#define WL1271_FLAG_IRQ_PENDING (8)
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#define WL1271_FLAG_IRQ_RUNNING (9)
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#define WL1271_FLAG_IDLE (10)
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#define WL1271_FLAG_IDLE_REQUESTED (11)
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#define WL1271_FLAG_PSPOLL_FAILURE (12)
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#define WL1271_FLAG_STA_STATE_SENT (13)
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#define WL1271_FLAG_FW_TX_BUSY (14)
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unsigned long flags;
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struct wl1271_partition_set part;
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struct wl1271_chip chip;
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int cmd_box_addr;
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int event_box_addr;
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u8 *fw;
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size_t fw_len;
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struct wl1271_nvs_file *nvs;
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size_t nvs_len;
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s8 hw_pg_ver;
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u8 bssid[ETH_ALEN];
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u8 mac_addr[ETH_ALEN];
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u8 bss_type;
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u8 set_bss_type;
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u8 ssid[IW_ESSID_MAX_SIZE + 1];
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u8 ssid_len;
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int channel;
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struct wl1271_acx_mem_map *target_mem_map;
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/* Accounting for allocated / available TX blocks on HW */
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u32 tx_blocks_freed[NUM_TX_QUEUES];
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u32 tx_blocks_available;
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u32 tx_results_count;
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/* Transmitted TX packets counter for chipset interface */
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u32 tx_packets_count;
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/* Time-offset between host and chipset clocks */
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s64 time_offset;
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/* Session counter for the chipset */
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int session_counter;
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/* Frames scheduled for transmission, not handled yet */
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struct sk_buff_head tx_queue[NUM_TX_QUEUES];
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int tx_queue_count;
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struct work_struct tx_work;
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/* Pending TX frames */
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unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)];
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struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
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int tx_frames_cnt;
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/* Security sequence number counters */
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u8 tx_security_last_seq;
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s64 tx_security_seq;
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/* FW Rx counter */
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u32 rx_counter;
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/* Rx memory pool address */
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struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;
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/* Intermediate buffer, used for packet aggregation */
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u8 *aggr_buf;
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/* The target interrupt mask */
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struct work_struct irq_work;
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/* Hardware recovery work */
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struct work_struct recovery_work;
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/* The mbox event mask */
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u32 event_mask;
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/* Mailbox pointers */
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u32 mbox_ptr[2];
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/* Are we currently scanning */
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struct wl1271_scan scan;
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struct delayed_work scan_complete_work;
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/* probe-req template for the current AP */
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struct sk_buff *probereq;
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/* Our association ID */
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u16 aid;
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/*
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* currently configured rate set:
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* bits 0-15 - 802.11abg rates
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* bits 16-23 - 802.11n MCS index mask
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* support only 1 stream, thus only 8 bits for the MCS rates (0-7).
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*/
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u32 sta_rate_set;
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u32 basic_rate_set;
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u32 basic_rate;
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u32 rate_set;
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/* The current band */
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enum ieee80211_band band;
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/* Beaconing interval (needed for ad-hoc) */
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u32 beacon_int;
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/* Default key (for WEP) */
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u32 default_key;
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unsigned int filters;
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unsigned int rx_config;
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unsigned int rx_filter;
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struct completion *elp_compl;
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struct delayed_work elp_work;
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struct delayed_work pspoll_work;
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/* counter for ps-poll delivery failures */
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int ps_poll_failures;
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/* retry counter for PSM entries */
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u8 psm_entry_retry;
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/* in dBm */
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int power_level;
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int rssi_thold;
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int last_rssi_event;
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struct wl1271_stats stats;
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__le32 buffer_32;
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u32 buffer_cmd;
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u32 buffer_busyword[WL1271_BUSY_WORD_CNT];
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struct wl1271_fw_status *fw_status;
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struct wl1271_tx_hw_res_if *tx_res_if;
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struct ieee80211_vif *vif;
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/* Current chipset configuration */
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struct conf_drv_settings conf;
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bool sg_enabled;
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bool enable_11a;
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struct list_head list;
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/* Most recently reported noise in dBm */
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s8 noise;
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};
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int wl1271_plt_start(struct wl1271 *wl);
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int wl1271_plt_stop(struct wl1271 *wl);
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#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
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#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
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#define WL1271_DEFAULT_POWER_LEVEL 0
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#define WL1271_TX_QUEUE_LOW_WATERMARK 10
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#define WL1271_TX_QUEUE_HIGH_WATERMARK 25
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/* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
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on in case is has been shut down shortly before */
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#define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */
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#define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */
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/* Macros to handle wl1271.sta_rate_set */
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#define HW_BG_RATES_MASK 0xffff
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#define HW_HT_RATES_OFFSET 16
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#endif
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