1 files changed, 639 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
new file mode 100644
index 000000000000..fbe8f46d1232
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -0,0 +1,639 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __WL12XX_H__
+#define __WL12XX_H__
+
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/bitops.h>
+#include <net/mac80211.h>
+
+#include "conf.h"
+#include "ini.h"
+
+#define DRIVER_NAME "wl1271"
+#define DRIVER_PREFIX DRIVER_NAME ": "
+
+/*
+ * FW versions support BA 11n
+ * versions marks x.x.x.50-60.x
+ */
+#define WL12XX_BA_SUPPORT_FW_COST_VER2_START    50
+#define WL12XX_BA_SUPPORT_FW_COST_VER2_END      60
+
+enum {
+        DEBUG_NONE      = 0,
+        DEBUG_IRQ       = BIT(0),
+        DEBUG_SPI       = BIT(1),
+        DEBUG_BOOT      = BIT(2),
+        DEBUG_MAILBOX   = BIT(3),
+        DEBUG_TESTMODE  = BIT(4),
+        DEBUG_EVENT     = BIT(5),
+        DEBUG_TX        = BIT(6),
+        DEBUG_RX        = BIT(7),
+        DEBUG_SCAN      = BIT(8),
+        DEBUG_CRYPT     = BIT(9),
+        DEBUG_PSM       = BIT(10),
+        DEBUG_MAC80211  = BIT(11),
+        DEBUG_CMD       = BIT(12),
+        DEBUG_ACX       = BIT(13),
+        DEBUG_SDIO      = BIT(14),
+        DEBUG_FILTERS   = BIT(15),
+        DEBUG_ADHOC     = BIT(16),
+        DEBUG_AP        = BIT(17),
+        DEBUG_MASTER    = (DEBUG_ADHOC | DEBUG_AP),
+        DEBUG_ALL       = ~0,
+};
+
+extern u32 wl12xx_debug_level;
+
+#define DEBUG_DUMP_LIMIT 1024
+
+#define wl1271_error(fmt, arg...) \
+        pr_err(DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
+
+#define wl1271_warning(fmt, arg...) \
+        pr_warning(DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
+
+#define wl1271_notice(fmt, arg...) \
+        pr_info(DRIVER_PREFIX fmt "\n", ##arg)
+
+#define wl1271_info(fmt, arg...) \
+        pr_info(DRIVER_PREFIX fmt "\n", ##arg)
+
+#define wl1271_debug(level, fmt, arg...) \
+        do { \
+                if (level & wl12xx_debug_level) \
+                        pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
+        } while (0)
+
+/* TODO: use pr_debug_hex_dump when it will be available */
+#define wl1271_dump(level, prefix, buf, len)    \
+        do { \
+                if (level & wl12xx_debug_level) \
+                        print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
+                                       DUMP_PREFIX_OFFSET, 16, 1,       \
+                                       buf,                             \
+                                       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
+                                       0);                              \
+        } while (0)
+
+#define wl1271_dump_ascii(level, prefix, buf, len)      \
+        do { \
+                if (level & wl12xx_debug_level) \
+                        print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
+                                       DUMP_PREFIX_OFFSET, 16, 1,       \
+                                       buf,                             \
+                                       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
+                                       true);                           \
+        } while (0)
+
+#define WL1271_DEFAULT_STA_RX_CONFIG (CFG_UNI_FILTER_EN |       \
+                                  CFG_BSSID_FILTER_EN | \
+                                  CFG_MC_FILTER_EN)
+
+#define WL1271_DEFAULT_STA_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN |  \
+                                  CFG_RX_MGMT_EN | CFG_RX_DATA_EN |   \
+                                  CFG_RX_CTL_EN | CFG_RX_BCN_EN |     \
+                                  CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
+
+#define WL1271_DEFAULT_AP_RX_CONFIG  0
+
+#define WL1271_DEFAULT_AP_RX_FILTER  (CFG_RX_RCTS_ACK | CFG_RX_PREQ_EN | \
+                                  CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
+                                  CFG_RX_CTL_EN | CFG_RX_AUTH_EN | \
+                                  CFG_RX_ASSOC_EN)
+
+
+
+#define WL1271_FW_NAME "ti-connectivity/wl1271-fw-2.bin"
+#define WL128X_FW_NAME "ti-connectivity/wl128x-fw.bin"
+#define WL127X_AP_FW_NAME "ti-connectivity/wl1271-fw-ap.bin"
+#define WL128X_AP_FW_NAME "ti-connectivity/wl128x-fw-ap.bin"
+
+/*
+ * wl127x and wl128x are using the same NVS file name. However, the
+ * ini parameters between them are different.  The driver validates
+ * the correct NVS size in wl1271_boot_upload_nvs().
+ */
+#define WL12XX_NVS_NAME "ti-connectivity/wl1271-nvs.bin"
+
+#define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
+#define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
+
+#define WL1271_CIPHER_SUITE_GEM 0x00147201
+
+#define WL1271_BUSY_WORD_CNT 1
+#define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
+
+#define WL1271_ELP_HW_STATE_ASLEEP 0
+#define WL1271_ELP_HW_STATE_IRQ    1
+
+#define WL1271_DEFAULT_BEACON_INT  100
+#define WL1271_DEFAULT_DTIM_PERIOD 1
+
+#define WL1271_AP_GLOBAL_HLID      0
+#define WL1271_AP_BROADCAST_HLID   1
+#define WL1271_AP_STA_HLID_START   2
+
+/*
+ * When in AP-mode, we allow (at least) this number of mem-blocks
+ * to be transmitted to FW for a STA in PS-mode. Only when packets are
+ * present in the FW buffers it will wake the sleeping STA. We want to put
+ * enough packets for the driver to transmit all of its buffered data before
+ * the STA goes to sleep again. But we don't want to take too much mem-blocks
+ * as it might hurt the throughput of active STAs.
+ * The number of blocks (18) is enough for 2 large packets.
+ */
+#define WL1271_PS_STA_MAX_BLOCKS  (2 * 9)
+
+#define WL1271_AP_BSS_INDEX        0
+#define WL1271_AP_DEF_INACTIV_SEC  300
+#define WL1271_AP_DEF_BEACON_EXP   20
+
+#define ACX_TX_DESCRIPTORS         32
+
+#define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+
+enum wl1271_state {
+        WL1271_STATE_OFF,
+        WL1271_STATE_ON,
+        WL1271_STATE_PLT,
+};
+
+enum wl1271_partition_type {
+        PART_DOWN,
+        PART_WORK,
+        PART_DRPW,
+
+        PART_TABLE_LEN
+};
+
+struct wl1271_partition {
+        u32 size;
+        u32 start;
+};
+
+struct wl1271_partition_set {
+        struct wl1271_partition mem;
+        struct wl1271_partition reg;
+        struct wl1271_partition mem2;
+        struct wl1271_partition mem3;
+};
+
+struct wl1271;
+
+enum {
+        FW_VER_CHIP,
+        FW_VER_IF_TYPE,
+        FW_VER_MAJOR,
+        FW_VER_SUBTYPE,
+        FW_VER_MINOR,
+
+        NUM_FW_VER
+};
+
+#define FW_VER_CHIP_WL127X 6
+#define FW_VER_CHIP_WL128X 7
+
+#define FW_VER_IF_TYPE_STA 1
+#define FW_VER_IF_TYPE_AP  2
+
+#define FW_VER_MINOR_1_SPARE_STA_MIN 58
+#define FW_VER_MINOR_1_SPARE_AP_MIN  47
+
+struct wl1271_chip {
+        u32 id;
+        char fw_ver_str[ETHTOOL_BUSINFO_LEN];
+        unsigned int fw_ver[NUM_FW_VER];
+};
+
+struct wl1271_stats {
+        struct acx_statistics *fw_stats;
+        unsigned long fw_stats_update;
+
+        unsigned int retry_count;
+        unsigned int excessive_retries;
+};
+
+#define NUM_TX_QUEUES              4
+#define NUM_RX_PKT_DESC            8
+
+#define AP_MAX_STATIONS            5
+
+/* Broadcast and Global links + links to stations */
+#define AP_MAX_LINKS               (AP_MAX_STATIONS + 2)
+
+/* FW status registers common for AP/STA */
+struct wl1271_fw_common_status {
+        __le32 intr;
+        u8  fw_rx_counter;
+        u8  drv_rx_counter;
+        u8  reserved;
+        u8  tx_results_counter;
+        __le32 rx_pkt_descs[NUM_RX_PKT_DESC];
+        __le32 tx_released_blks[NUM_TX_QUEUES];
+        __le32 fw_localtime;
+} __packed;
+
+/* FW status registers for AP */
+struct wl1271_fw_ap_status {
+        struct wl1271_fw_common_status common;
+
+        /* Next fields valid only in AP FW */
+
+        /*
+         * A bitmap (where each bit represents a single HLID)
+         * to indicate if the station is in PS mode.
+         */
+        __le32 link_ps_bitmap;
+
+        /* Number of freed MBs per HLID */
+        u8 tx_lnk_free_blks[AP_MAX_LINKS];
+        u8 padding_1[1];
+} __packed;
+
+/* FW status registers for STA */
+struct wl1271_fw_sta_status {
+        struct wl1271_fw_common_status common;
+
+        u8  tx_total;
+        u8  reserved1;
+        __le16 reserved2;
+        /* Total structure size is 68 bytes */
+        u32 padding;
+} __packed;
+
+struct wl1271_fw_full_status {
+        union {
+                struct wl1271_fw_common_status common;
+                struct wl1271_fw_sta_status sta;
+                struct wl1271_fw_ap_status ap;
+        };
+} __packed;
+
+
+struct wl1271_rx_mem_pool_addr {
+        u32 addr;
+        u32 addr_extra;
+};
+
+#define WL1271_MAX_CHANNELS 64
+struct wl1271_scan {
+        struct cfg80211_scan_request *req;
+        unsigned long scanned_ch[BITS_TO_LONGS(WL1271_MAX_CHANNELS)];
+        bool failed;
+        u8 state;
+        u8 ssid[IW_ESSID_MAX_SIZE+1];
+        size_t ssid_len;
+};
+
+struct wl1271_if_operations {
+        void (*read)(struct wl1271 *wl, int addr, void *buf, size_t len,
+                     bool fixed);
+        void (*write)(struct wl1271 *wl, int addr, void *buf, size_t len,
+                     bool fixed);
+        void (*reset)(struct wl1271 *wl);
+        void (*init)(struct wl1271 *wl);
+        int (*power)(struct wl1271 *wl, bool enable);
+        struct device* (*dev)(struct wl1271 *wl);
+        void (*enable_irq)(struct wl1271 *wl);
+        void (*disable_irq)(struct wl1271 *wl);
+        void (*set_block_size) (struct wl1271 *wl, unsigned int blksz);
+};
+
+#define MAX_NUM_KEYS 14
+#define MAX_KEY_SIZE 32
+
+struct wl1271_ap_key {
+        u8 id;
+        u8 key_type;
+        u8 key_size;
+        u8 key[MAX_KEY_SIZE];
+        u8 hlid;
+        u32 tx_seq_32;
+        u16 tx_seq_16;
+};
+
+enum wl12xx_flags {
+        WL1271_FLAG_STA_ASSOCIATED,
+        WL1271_FLAG_JOINED,
+        WL1271_FLAG_GPIO_POWER,
+        WL1271_FLAG_TX_QUEUE_STOPPED,
+        WL1271_FLAG_TX_PENDING,
+        WL1271_FLAG_IN_ELP,
+        WL1271_FLAG_ELP_REQUESTED,
+        WL1271_FLAG_PSM,
+        WL1271_FLAG_PSM_REQUESTED,
+        WL1271_FLAG_IRQ_RUNNING,
+        WL1271_FLAG_IDLE,
+        WL1271_FLAG_PSPOLL_FAILURE,
+        WL1271_FLAG_STA_STATE_SENT,
+        WL1271_FLAG_FW_TX_BUSY,
+        WL1271_FLAG_AP_STARTED,
+        WL1271_FLAG_IF_INITIALIZED,
+        WL1271_FLAG_DUMMY_PACKET_PENDING,
+        WL1271_FLAG_SUSPENDED,
+        WL1271_FLAG_PENDING_WORK,
+};
+
+struct wl1271_link {
+        /* AP-mode - TX queue per AC in link */
+        struct sk_buff_head tx_queue[NUM_TX_QUEUES];
+
+        /* accounting for allocated / available TX blocks in FW */
+        u8 allocated_blks;
+        u8 prev_freed_blks;
+
+        u8 addr[ETH_ALEN];
+};
+
+struct wl1271 {
+        struct platform_device *plat_dev;
+        struct ieee80211_hw *hw;
+        bool mac80211_registered;
+
+        void *if_priv;
+
+        struct wl1271_if_operations *if_ops;
+
+        void (*set_power)(bool enable);
+        int irq;
+        int ref_clock;
+
+        spinlock_t wl_lock;
+
+        enum wl1271_state state;
+        struct mutex mutex;
+
+        unsigned long flags;
+
+        struct wl1271_partition_set part;
+
+        struct wl1271_chip chip;
+
+        int cmd_box_addr;
+        int event_box_addr;
+
+        u8 *fw;
+        size_t fw_len;
+        u8 fw_bss_type;
+        void *nvs;
+        size_t nvs_len;
+
+        s8 hw_pg_ver;
+
+        u8 bssid[ETH_ALEN];
+        u8 mac_addr[ETH_ALEN];
+        u8 bss_type;
+        u8 set_bss_type;
+        u8 ssid[IW_ESSID_MAX_SIZE + 1];
+        u8 ssid_len;
+        int channel;
+
+        struct wl1271_acx_mem_map *target_mem_map;
+
+        /* Accounting for allocated / available TX blocks on HW */
+        u32 tx_blocks_freed[NUM_TX_QUEUES];
+        u32 tx_blocks_available;
+        u32 tx_allocated_blocks;
+        u32 tx_results_count;
+
+        /* Transmitted TX packets counter for chipset interface */
+        u32 tx_packets_count;
+
+        /* Time-offset between host and chipset clocks */
+        s64 time_offset;
+
+        /* Session counter for the chipset */
+        int session_counter;
+
+        /* Frames scheduled for transmission, not handled yet */
+        struct sk_buff_head tx_queue[NUM_TX_QUEUES];
+        int tx_queue_count;
+
+        /* Frames received, not handled yet by mac80211 */
+        struct sk_buff_head deferred_rx_queue;
+
+        /* Frames sent, not returned yet to mac80211 */
+        struct sk_buff_head deferred_tx_queue;
+
+        struct work_struct tx_work;
+
+        /* Pending TX frames */
+        unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)];
+        struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
+        int tx_frames_cnt;
+
+        /* Security sequence number counters */
+        u8 tx_security_last_seq;
+        s64 tx_security_seq;
+
+        /* FW Rx counter */
+        u32 rx_counter;
+
+        /* Rx memory pool address */
+        struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;
+
+        /* Intermediate buffer, used for packet aggregation */
+        u8 *aggr_buf;
+
+        /* Reusable dummy packet template */
+        struct sk_buff *dummy_packet;
+
+        /* Network stack work  */
+        struct work_struct netstack_work;
+
+        /* Hardware recovery work */
+        struct work_struct recovery_work;
+
+        /* The mbox event mask */
+        u32 event_mask;
+
+        /* Mailbox pointers */
+        u32 mbox_ptr[2];
+
+        /* Are we currently scanning */
+        struct wl1271_scan scan;
+        struct delayed_work scan_complete_work;
+
+        bool sched_scanning;
+
+        /* probe-req template for the current AP */
+        struct sk_buff *probereq;
+
+        /* Our association ID */
+        u16 aid;
+
+        /*
+         * currently configured rate set:
+         *      bits  0-15 - 802.11abg rates
+         *      bits 16-23 - 802.11n   MCS index mask
+         * support only 1 stream, thus only 8 bits for the MCS rates (0-7).
+         */
+        u32 basic_rate_set;
+        u32 basic_rate;
+        u32 rate_set;
+
+        /* The current band */
+        enum ieee80211_band band;
+
+        /* Beaconing interval (needed for ad-hoc) */
+        u32 beacon_int;
+
+        /* Default key (for WEP) */
+        u32 default_key;
+
+        unsigned int filters;
+        unsigned int rx_config;
+        unsigned int rx_filter;
+
+        struct completion *elp_compl;
+        struct completion *ps_compl;
+        struct delayed_work elp_work;
+        struct delayed_work pspoll_work;
+
+        /* counter for ps-poll delivery failures */
+        int ps_poll_failures;
+
+        /* retry counter for PSM entries */
+        u8 psm_entry_retry;
+
+        /* in dBm */
+        int power_level;
+
+        int rssi_thold;
+        int last_rssi_event;
+
+        struct wl1271_stats stats;
+
+        __le32 buffer_32;
+        u32 buffer_cmd;
+        u32 buffer_busyword[WL1271_BUSY_WORD_CNT];
+
+        struct wl1271_fw_full_status *fw_status;
+        struct wl1271_tx_hw_res_if *tx_res_if;
+
+        struct ieee80211_vif *vif;
+
+        /* Current chipset configuration */
+        struct conf_drv_settings conf;
+
+        bool sg_enabled;
+
+        bool enable_11a;
+
+        struct list_head list;
+
+        /* Most recently reported noise in dBm */
+        s8 noise;
+
+        /* map for HLIDs of associated stations - when operating in AP mode */
+        unsigned long ap_hlid_map[BITS_TO_LONGS(AP_MAX_STATIONS)];
+
+        /* recoreded keys for AP-mode - set here before AP startup */
+        struct wl1271_ap_key *recorded_ap_keys[MAX_NUM_KEYS];
+
+        /* bands supported by this instance of wl12xx */
+        struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
+
+        /* RX BA constraint value */
+        bool ba_support;
+        u8 ba_rx_bitmap;
+
+        int tcxo_clock;
+
+        /*
+         * wowlan trigger was configured during suspend.
+         * (currently, only "ANY" trigger is supported)
+         */
+        bool wow_enabled;
+
+        /*
+         * AP-mode - links indexed by HLID. The global and broadcast links
+         * are always active.
+         */
+        struct wl1271_link links[AP_MAX_LINKS];
+
+        /* the hlid of the link where the last transmitted skb came from */
+        int last_tx_hlid;
+
+        /* AP-mode - a bitmap of links currently in PS mode according to FW */
+        u32 ap_fw_ps_map;
+
+        /* AP-mode - a bitmap of links currently in PS mode in mac80211 */
+        unsigned long ap_ps_map;
+
+        /* Quirks of specific hardware revisions */
+        unsigned int quirks;
+
+        /* Platform limitations */
+        unsigned int platform_quirks;
+};
+
+struct wl1271_station {
+        u8 hlid;
+};
+
+int wl1271_plt_start(struct wl1271 *wl);
+int wl1271_plt_stop(struct wl1271 *wl);
+
+#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
+
+#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
+
+#define WL1271_DEFAULT_POWER_LEVEL 0
+
+#define WL1271_TX_QUEUE_LOW_WATERMARK  10
+#define WL1271_TX_QUEUE_HIGH_WATERMARK 25
+
+#define WL1271_DEFERRED_QUEUE_LIMIT    64
+
+/* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
+   on in case is has been shut down shortly before */
+#define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */
+#define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */
+
+/* Macros to handle wl1271.sta_rate_set */
+#define HW_BG_RATES_MASK        0xffff
+#define HW_HT_RATES_OFFSET      16
+
+/* Quirks */
+
+/* Each RX/TX transaction requires an end-of-transaction transfer */
+#define WL12XX_QUIRK_END_OF_TRANSACTION         BIT(0)
+
+/*
+ * Older firmwares use 2 spare TX blocks
+ * (for STA < 6.1.3.50.58 or for AP < 6.2.0.0.47)
+ */
+#define WL12XX_QUIRK_USE_2_SPARE_BLOCKS         BIT(1)
+
+/* WL128X requires aggregated packets to be aligned to the SDIO block size */
+#define WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT        BIT(2)
+
+#endif