Return-path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120]:51884 "EHLO cdptpa-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932116Ab3CUWki (ORCPT ); Thu, 21 Mar 2013 18:40:38 -0400 From: Solomon Peachy To: linux-wireless@vger.kernel.org Cc: Solomon Peachy Subject: [PATCH 11/15] cw1200: v5: common state, definitions, and registration handling Date: Thu, 21 Mar 2013 18:39:45 -0400 Message-Id: <1363905589-8350-12-git-send-email-pizza@shaftnet.org> (sfid-20130321_234046_577900_01E3575B) In-Reply-To: <1363905589-8350-1-git-send-email-pizza@shaftnet.org> References: <1363905589-8350-1-git-send-email-pizza@shaftnet.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Solomon Peachy --- drivers/net/wireless/cw1200/cw1200.h | 344 ++++++++++++++++++++ drivers/net/wireless/cw1200/main.c | 615 +++++++++++++++++++++++++++++++++++ drivers/net/wireless/cw1200/sbus.h | 35 ++ 3 files changed, 994 insertions(+) create mode 100644 drivers/net/wireless/cw1200/cw1200.h create mode 100644 drivers/net/wireless/cw1200/main.c create mode 100644 drivers/net/wireless/cw1200/sbus.h diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h new file mode 100644 index 0000000..bf0291e --- /dev/null +++ b/drivers/net/wireless/cw1200/cw1200.h @@ -0,0 +1,336 @@ +/* + * Common private data for ST-Ericsson CW1200 drivers + * + * Copyright (c) 2010, ST-Ericsson + * Author: Dmitry Tarnyagin + * + * Based on the mac80211 Prism54 code, which is + * Copyright (c) 2006, Michael Wu + * + * Based on the islsm (softmac prism54) driver, which is: + * Copyright 2004-2006 Jean-Baptiste Note , et al. + * + * 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. + */ + +#ifndef CW1200_H +#define CW1200_H + +#include +#include +#include +#include +#include + +#include "queue.h" +#include "wsm.h" +#include "scan.h" +#include "txrx.h" +#include "pm.h" + +/* Forward declarations */ +struct sbus_ops; +struct task_struct; +struct cw1200_debug_priv; +struct firmware; + +#ifdef CONFIG_CW1200_ETF +extern int etf_mode; +extern char *etf_firmware; +#endif + +#define CW1200_MAX_CTRL_FRAME_LEN (0x1000) + +#define CW1200_MAX_STA_IN_AP_MODE (5) +#define CW1200_LINK_ID_AFTER_DTIM (CW1200_MAX_STA_IN_AP_MODE + 1) +#define CW1200_LINK_ID_UAPSD (CW1200_MAX_STA_IN_AP_MODE + 2) +#define CW1200_LINK_ID_MAX (CW1200_MAX_STA_IN_AP_MODE + 3) +#define CW1200_MAX_REQUEUE_ATTEMPTS (5) + +#define CW1200_MAX_TID (8) + +#define CW1200_BLOCK_ACK_CNT (30) +#define CW1200_BLOCK_ACK_THLD (800) +#define CW1200_BLOCK_ACK_HIST (3) +#define CW1200_BLOCK_ACK_INTERVAL (1 * HZ / CW1200_BLOCK_ACK_HIST) + +#define CW1200_JOIN_TIMEOUT (1 * HZ) +#define CW1200_AUTH_TIMEOUT (5 * HZ) + +#define BSS_LOSS_CHECKING_MAX_TRY 10 + +struct cw1200_ht_info { + struct ieee80211_sta_ht_cap ht_cap; + enum nl80211_channel_type channel_type; + u16 operation_mode; +}; + +/* Please keep order */ +enum cw1200_join_status { + CW1200_JOIN_STATUS_PASSIVE = 0, + CW1200_JOIN_STATUS_MONITOR, + CW1200_JOIN_STATUS_JOINING, + CW1200_JOIN_STATUS_PRE_STA, + CW1200_JOIN_STATUS_STA, + CW1200_JOIN_STATUS_IBSS, + CW1200_JOIN_STATUS_AP, +}; + +enum cw1200_link_status { + CW1200_LINK_OFF, + CW1200_LINK_RESERVE, + CW1200_LINK_SOFT, + CW1200_LINK_HARD, + CW1200_LINK_RESET, + CW1200_LINK_RESET_REMAP, +}; + +enum cw1200_bss_loss_status { + CW1200_BSS_LOSS_NONE, + CW1200_BSS_LOSS_CHECKING, + CW1200_BSS_LOSS_CONFIRMING, + CW1200_BSS_LOSS_CONFIRMED, +}; + +extern int cw1200_power_mode; +extern const char * const cw1200_fw_types[]; + +struct cw1200_link_entry { + unsigned long timestamp; + enum cw1200_link_status status; + enum cw1200_link_status prev_status; + u8 mac[ETH_ALEN]; + u8 buffered[CW1200_MAX_TID]; + struct sk_buff_head rx_queue; +}; + +struct cw1200_common { + /* interfaces to the rest of the stack */ + struct ieee80211_hw *hw; + struct ieee80211_vif *vif; + struct device *pdev; + + /* Statistics */ + struct ieee80211_low_level_stats stats; + + /* Our macaddr */ + u8 mac_addr[ETH_ALEN]; + + /* Hardware interface */ + const struct sbus_ops *sbus_ops; + struct sbus_priv *sbus_priv; + + /* Hardware information */ + enum { + HIF_9000_SILICON_VERSATILE = 0, + HIF_8601_VERSATILE, + HIF_8601_SILICON, + } hw_type; + enum { + CW1200_HW_REV_CUT10 = 10, + CW1200_HW_REV_CUT11 = 11, + CW1200_HW_REV_CUT20 = 20, + CW1200_HW_REV_CUT22 = 22, + CW1X60_HW_REV = 40, + } hw_revision; + int hw_refclk; + bool hw_have_5ghz; + const struct firmware *sdd; + char *sdd_path; + + struct cw1200_debug_priv *debug; + + struct workqueue_struct *workqueue; + struct mutex conf_mutex; + + struct cw1200_queue tx_queue[4]; + struct cw1200_queue_stats tx_queue_stats; + int tx_burst_idx; + + /* firmware/hardware info */ + unsigned int tx_hdr_len; + + /* Radio data */ + int output_power; + + /* BBP/MAC state */ + struct ieee80211_rate *rates; + struct ieee80211_rate *mcs_rates; + struct ieee80211_channel *channel; + struct wsm_edca_params edca; + struct wsm_tx_queue_params tx_queue_params; + struct wsm_mib_association_mode association_mode; + struct wsm_set_bss_params bss_params; + struct cw1200_ht_info ht_info; + struct wsm_set_pm powersave_mode; + struct wsm_set_pm firmware_ps_mode; + int cqm_rssi_thold; + unsigned cqm_rssi_hyst; + bool cqm_use_rssi; + int cqm_beacon_loss_count; + int channel_switch_in_progress; + wait_queue_head_t channel_switch_done; + u8 long_frame_max_tx_count; + u8 short_frame_max_tx_count; + int mode; + bool enable_beacon; + int beacon_int; + bool listening; + struct wsm_rx_filter rx_filter; + struct wsm_mib_multicast_filter multicast_filter; + bool has_multicast_subscription; + bool disable_beacon_filter; + struct work_struct update_filtering_work; + struct work_struct set_beacon_wakeup_period_work; + + u8 ba_rx_tid_mask; + u8 ba_tx_tid_mask; + + struct cw1200_pm_state pm_state; + + struct wsm_p2p_ps_modeinfo p2p_ps_modeinfo; + struct wsm_uapsd_info uapsd_info; + bool setbssparams_done; + bool bt_present; + u8 conf_listen_interval; + u32 listen_interval; + u32 erp_info; + u32 rts_threshold; + + /* BH */ + atomic_t bh_rx; + atomic_t bh_tx; + atomic_t bh_term; + atomic_t bh_suspend; + + struct workqueue_struct *bh_workqueue; + struct work_struct bh_work; + + int bh_error; + wait_queue_head_t bh_wq; + wait_queue_head_t bh_evt_wq; + int buf_id_tx; /* byte */ + int buf_id_rx; /* byte */ + int wsm_rx_seq; /* byte */ + int wsm_tx_seq; /* byte */ + int hw_bufs_used; + bool powersave_enabled; + bool device_can_sleep; + + /* Scan status */ + struct cw1200_scan scan; + /* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid + * FW issue with sleeping/waking up. */ + atomic_t recent_scan; + struct delayed_work clear_recent_scan_work; + + /* WSM */ + struct wsm_startup_ind wsm_caps; + struct mutex wsm_cmd_mux; + struct wsm_buf wsm_cmd_buf; + struct wsm_cmd wsm_cmd; + wait_queue_head_t wsm_cmd_wq; + wait_queue_head_t wsm_startup_done; + int firmware_ready; + atomic_t tx_lock; + + /* WSM debug */ + int wsm_enable_wsm_dumps; + + /* WSM Join */ + enum cw1200_join_status join_status; + u32 pending_frame_id; + bool join_pending; + struct delayed_work join_timeout; + struct work_struct unjoin_work; + struct work_struct join_complete_work; + int join_complete_status; + int join_dtim_period; + bool delayed_unjoin; + + /* TX/RX and security */ + s8 wep_default_key_id; + struct work_struct wep_key_work; + u32 key_map; + struct wsm_add_key keys[WSM_KEY_MAX_INDEX + 1]; + + /* AP powersave */ + u32 link_id_map; + struct cw1200_link_entry link_id_db[CW1200_MAX_STA_IN_AP_MODE]; + struct work_struct link_id_work; + struct delayed_work link_id_gc_work; + u32 sta_asleep_mask; + u32 pspoll_mask; + bool aid0_bit_set; + spinlock_t ps_state_lock; + bool buffered_multicasts; + bool tx_multicast; + struct work_struct set_tim_work; + struct work_struct set_cts_work; + struct work_struct multicast_start_work; + struct work_struct multicast_stop_work; + struct timer_list mcast_timeout; + + /* WSM events and CQM implementation */ + spinlock_t event_queue_lock; + struct list_head event_queue; + struct work_struct event_handler; + struct delayed_work bss_loss_work; + int delayed_link_loss; + + /* TX rate policy cache */ + struct tx_policy_cache tx_policy_cache; + struct work_struct tx_policy_upload_work; + + /* legacy PS mode switch in suspend */ + int ps_mode_switch_in_progress; + wait_queue_head_t ps_mode_switch_done; + + /* Workaround for WFD testcase 6.1.10*/ + struct work_struct linkid_reset_work; + u8 action_frame_sa[ETH_ALEN]; + u8 action_linkid; + +#ifdef CONFIG_CW1200_ETF + struct sk_buff_head etf_q; +#endif +}; + +struct cw1200_sta_priv { + int link_id; +}; + +/* interfaces for the drivers */ +int cw1200_core_probe(const struct sbus_ops *sbus_ops, + struct sbus_priv *sbus, + struct device *pdev, + struct cw1200_common **pself, + int ref_clk, const u8 *macaddr, + const char *sdd_path, bool have_5ghz); +void cw1200_core_release(struct cw1200_common *self); + +#define FWLOAD_BLOCK_SIZE (1024) + +static inline int cw1200_is_ht(const struct cw1200_ht_info *ht_info) +{ + return ht_info->channel_type != NL80211_CHAN_NO_HT; +} + +static inline int cw1200_ht_greenfield(const struct cw1200_ht_info *ht_info) +{ + return cw1200_is_ht(ht_info) && + (ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) && + !(ht_info->operation_mode & + IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); +} + +static inline int cw1200_ht_ampdu_density(const struct cw1200_ht_info *ht_info) +{ + if (!cw1200_is_ht(ht_info)) + return 0; + return ht_info->ht_cap.ampdu_density; +} + +#endif /* CW1200_H */ diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c new file mode 100644 index 0000000..5e3b212 --- /dev/null +++ b/drivers/net/wireless/cw1200/main.c @@ -0,0 +1,615 @@ +/* + * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers + * + * Copyright (c) 2010, ST-Ericsson + * Author: Dmitry Tarnyagin + * + * Based on: + * Copyright (c) 2006, Michael Wu + * Copyright (c) 2007-2009, Christian Lamparter + * Copyright 2008, Johannes Berg + * + * Based on: + * - the islsm (softmac prism54) driver, which is: + * Copyright 2004-2006 Jean-Baptiste Note , et al. + * - stlc45xx driver + * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cw1200.h" +#include "txrx.h" +#include "sbus.h" +#include "fwio.h" +#include "hwio.h" +#include "bh.h" +#include "sta.h" +#include "scan.h" +#include "debug.h" +#include "pm.h" + +MODULE_AUTHOR("Dmitry Tarnyagin "); +MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("cw1200_core"); + +/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */ +static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00}; +module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO); +MODULE_PARM_DESC(macaddr, "Override platform_data MAC address"); + +static char *cw1200_sdd_path; +module_param(cw1200_sdd_path, charp, 0644); +MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file"); +static int cw1200_refclk; +module_param(cw1200_refclk, int, 0644); +MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock"); + +int cw1200_power_mode = wsm_power_mode_quiescent; +module_param(cw1200_power_mode, int, 0644); +MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)"); + +#ifdef CONFIG_CW1200_ETF +int etf_mode; +module_param(etf_mode, int, 0644); +MODULE_PARM_DESC(etf_mode, "Enable EngineeringTestingFramework operation"); +#endif + +#define RATETAB_ENT(_rate, _rateid, _flags) \ + { \ + .bitrate = (_rate), \ + .hw_value = (_rateid), \ + .flags = (_flags), \ + } + +static struct ieee80211_rate cw1200_rates[] = { + RATETAB_ENT(10, 0, 0), + RATETAB_ENT(20, 1, 0), + RATETAB_ENT(55, 2, 0), + RATETAB_ENT(110, 3, 0), + RATETAB_ENT(60, 6, 0), + RATETAB_ENT(90, 7, 0), + RATETAB_ENT(120, 8, 0), + RATETAB_ENT(180, 9, 0), + RATETAB_ENT(240, 10, 0), + RATETAB_ENT(360, 11, 0), + RATETAB_ENT(480, 12, 0), + RATETAB_ENT(540, 13, 0), +}; + +static struct ieee80211_rate cw1200_mcs_rates[] = { + RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS), + RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS), + RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS), + RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS), + RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS), + RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS), + RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS), + RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS), +}; + +#define cw1200_a_rates (cw1200_rates + 4) +#define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4) +#define cw1200_g_rates (cw1200_rates + 0) +#define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates)) +#define cw1200_n_rates (cw1200_mcs_rates) +#define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates)) + + +#define CHAN2G(_channel, _freq, _flags) { \ + .band = IEEE80211_BAND_2GHZ, \ + .center_freq = (_freq), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +#define CHAN5G(_channel, _flags) { \ + .band = IEEE80211_BAND_5GHZ, \ + .center_freq = 5000 + (5 * (_channel)), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +static struct ieee80211_channel cw1200_2ghz_chantable[] = { + CHAN2G(1, 2412, 0), + CHAN2G(2, 2417, 0), + CHAN2G(3, 2422, 0), + CHAN2G(4, 2427, 0), + CHAN2G(5, 2432, 0), + CHAN2G(6, 2437, 0), + CHAN2G(7, 2442, 0), + CHAN2G(8, 2447, 0), + CHAN2G(9, 2452, 0), + CHAN2G(10, 2457, 0), + CHAN2G(11, 2462, 0), + CHAN2G(12, 2467, 0), + CHAN2G(13, 2472, 0), + CHAN2G(14, 2484, 0), +}; + +static struct ieee80211_channel cw1200_5ghz_chantable[] = { + CHAN5G(34, 0), CHAN5G(36, 0), + CHAN5G(38, 0), CHAN5G(40, 0), + CHAN5G(42, 0), CHAN5G(44, 0), + CHAN5G(46, 0), CHAN5G(48, 0), + CHAN5G(52, 0), CHAN5G(56, 0), + CHAN5G(60, 0), CHAN5G(64, 0), + CHAN5G(100, 0), CHAN5G(104, 0), + CHAN5G(108, 0), CHAN5G(112, 0), + CHAN5G(116, 0), CHAN5G(120, 0), + CHAN5G(124, 0), CHAN5G(128, 0), + CHAN5G(132, 0), CHAN5G(136, 0), + CHAN5G(140, 0), CHAN5G(149, 0), + CHAN5G(153, 0), CHAN5G(157, 0), + CHAN5G(161, 0), CHAN5G(165, 0), + CHAN5G(184, 0), CHAN5G(188, 0), + CHAN5G(192, 0), CHAN5G(196, 0), + CHAN5G(200, 0), CHAN5G(204, 0), + CHAN5G(208, 0), CHAN5G(212, 0), + CHAN5G(216, 0), +}; + +static struct ieee80211_supported_band cw1200_band_2ghz = { + .channels = cw1200_2ghz_chantable, + .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable), + .bitrates = cw1200_g_rates, + .n_bitrates = cw1200_g_rates_size, + .ht_cap = { + .cap = IEEE80211_HT_CAP_GRN_FLD | + (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) | + IEEE80211_HT_CAP_MAX_AMSDU, + .ht_supported = 1, + .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, + .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE, + .mcs = { + .rx_mask[0] = 0xFF, + .rx_highest = __cpu_to_le16(0x41), + .tx_params = IEEE80211_HT_MCS_TX_DEFINED, + }, + }, +}; + +static struct ieee80211_supported_band cw1200_band_5ghz = { + .channels = cw1200_5ghz_chantable, + .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable), + .bitrates = cw1200_a_rates, + .n_bitrates = cw1200_a_rates_size, + .ht_cap = { + .cap = IEEE80211_HT_CAP_GRN_FLD | + (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) | + IEEE80211_HT_CAP_MAX_AMSDU, + .ht_supported = 1, + .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, + .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE, + .mcs = { + .rx_mask[0] = 0xFF, + .rx_highest = __cpu_to_le16(0x41), + .tx_params = IEEE80211_HT_MCS_TX_DEFINED, + }, + }, +}; + +static const unsigned long cw1200_ttl[] = { + 1 * HZ, /* VO */ + 2 * HZ, /* VI */ + 5 * HZ, /* BE */ + 10 * HZ /* BK */ +}; + +static const struct ieee80211_ops cw1200_ops = { + .start = cw1200_start, + .stop = cw1200_stop, + .add_interface = cw1200_add_interface, + .remove_interface = cw1200_remove_interface, + .change_interface = cw1200_change_interface, + .tx = cw1200_tx, + .hw_scan = cw1200_hw_scan, + .set_tim = cw1200_set_tim, + .sta_notify = cw1200_sta_notify, + .sta_add = cw1200_sta_add, + .sta_remove = cw1200_sta_remove, + .set_key = cw1200_set_key, + .set_rts_threshold = cw1200_set_rts_threshold, + .config = cw1200_config, + .bss_info_changed = cw1200_bss_info_changed, + .prepare_multicast = cw1200_prepare_multicast, + .configure_filter = cw1200_configure_filter, + .conf_tx = cw1200_conf_tx, + .get_stats = cw1200_get_stats, + .ampdu_action = cw1200_ampdu_action, + .flush = cw1200_flush, + .suspend = cw1200_wow_suspend, + .resume = cw1200_wow_resume, + /* Intentionally not offloaded: */ + /*.channel_switch = cw1200_channel_switch, */ + /*.remain_on_channel = cw1200_remain_on_channel, */ + /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */ +}; + +int cw1200_ba_rx_tids = -1; +int cw1200_ba_tx_tids = -1; +module_param(cw1200_ba_rx_tids, int, 0644); +module_param(cw1200_ba_tx_tids, int, 0644); +MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs"); +MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs"); + +static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr, + const bool have_5ghz) +{ + int i, band; + struct ieee80211_hw *hw; + struct cw1200_common *priv; + + hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops); + if (!hw) + return NULL; + + priv = hw->priv; + priv->hw = hw; + priv->hw_type = -1; + priv->mode = NL80211_IFTYPE_UNSPECIFIED; + priv->rates = cw1200_rates; /* TODO: fetch from FW */ + priv->mcs_rates = cw1200_n_rates; + if (cw1200_ba_rx_tids != -1) + priv->ba_rx_tid_mask = cw1200_ba_rx_tids; + else + priv->ba_rx_tid_mask = 0xFF; /* Enable RX BlockACK for all TIDs */ + if (cw1200_ba_tx_tids != -1) + priv->ba_tx_tid_mask = cw1200_ba_tx_tids; + else + priv->ba_tx_tid_mask = 0xff; /* Enable TX BlockACK for all TIDs */ + + hw->flags = IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_SUPPORTS_DYNAMIC_PS | + IEEE80211_HW_REPORTS_TX_ACK_STATUS | + IEEE80211_HW_SUPPORTS_UAPSD | + IEEE80211_HW_CONNECTION_MONITOR | + IEEE80211_HW_AMPDU_AGGREGATION | + IEEE80211_HW_TX_AMPDU_SETUP_IN_HW | + IEEE80211_HW_NEED_DTIM_PERIOD; + + hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_MESH_POINT) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_P2P_GO); + + /* Support only for limited wowlan functionalities */ + hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY | + WIPHY_WOWLAN_DISCONNECT; + hw->wiphy->wowlan.n_patterns = 0; + + hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; + + hw->channel_change_time = 1000; /* TODO: find actual value */ + hw->queues = 4; + + priv->rts_threshold = -1; + + hw->max_rates = 8; + hw->max_rate_tries = 15; + hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM + + 8; /* TKIP IV */ + + hw->sta_data_size = sizeof(struct cw1200_sta_priv); + + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz; + if (have_5ghz) + hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz; + + /* Channel params have to be cleared before registering wiphy again */ + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + struct ieee80211_supported_band *sband = hw->wiphy->bands[band]; + if (!sband) + continue; + for (i = 0; i < sband->n_channels; i++) { + sband->channels[i].flags = 0; + sband->channels[i].max_antenna_gain = 0; + sband->channels[i].max_power = 30; + } + } + + hw->wiphy->max_scan_ssids = 2; + hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; + + if (macaddr) + SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr); + else + SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template); + + /* Fix up mac address if necessary */ + if (hw->wiphy->perm_addr[3] == 0 && + hw->wiphy->perm_addr[4] == 0 && + hw->wiphy->perm_addr[5] == 0) { + get_random_bytes(&hw->wiphy->perm_addr[3], 3); + } + + mutex_init(&priv->wsm_cmd_mux); + mutex_init(&priv->conf_mutex); + priv->workqueue = create_singlethread_workqueue("cw1200_wq"); + sema_init(&priv->scan.lock, 1); + INIT_WORK(&priv->scan.work, cw1200_scan_work); + INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work); + INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout); + INIT_DELAYED_WORK(&priv->clear_recent_scan_work, cw1200_clear_recent_scan_work); + + INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout); + INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work); + INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work); + INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work); + INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work); + spin_lock_init(&priv->event_queue_lock); + INIT_LIST_HEAD(&priv->event_queue); + INIT_WORK(&priv->event_handler, cw1200_event_handler); + INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work); + spin_lock_init(&priv->ps_state_lock); + INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work); + INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work); + INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work); + INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work); + INIT_WORK(&priv->link_id_work, cw1200_link_id_work); + INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work); + INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset); + INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work); + INIT_WORK(&priv->set_beacon_wakeup_period_work, + cw1200_set_beacon_wakeup_period_work); + init_timer(&priv->mcast_timeout); + priv->mcast_timeout.data = (unsigned long)priv; + priv->mcast_timeout.function = cw1200_mcast_timeout; + + if (cw1200_queue_stats_init(&priv->tx_queue_stats, + CW1200_LINK_ID_MAX, + cw1200_skb_dtor, + priv)) { + ieee80211_free_hw(hw); + return NULL; + } + + for (i = 0; i < 4; ++i) { + if (cw1200_queue_init(&priv->tx_queue[i], + &priv->tx_queue_stats, i, 16, + cw1200_ttl[i])) { + for (; i > 0; i--) + cw1200_queue_deinit(&priv->tx_queue[i - 1]); + cw1200_queue_stats_deinit(&priv->tx_queue_stats); + ieee80211_free_hw(hw); + return NULL; + } + } + + init_waitqueue_head(&priv->channel_switch_done); + init_waitqueue_head(&priv->wsm_cmd_wq); + init_waitqueue_head(&priv->wsm_startup_done); + init_waitqueue_head(&priv->ps_mode_switch_done); + wsm_buf_init(&priv->wsm_cmd_buf); + spin_lock_init(&priv->wsm_cmd.lock); + priv->wsm_cmd.done = 1; + tx_policy_init(priv); + + return hw; +} + +static int cw1200_register_common(struct ieee80211_hw *dev) +{ + struct cw1200_common *priv = dev->priv; + int err; + +#ifdef CONFIG_CW1200_ETF + if (etf_mode) + goto done; +#endif + + err = cw1200_pm_init(&priv->pm_state, priv); + if (err) { + pr_err("Cannot init PM. (%d).\n", + err); + return err; + } + + err = ieee80211_register_hw(dev); + if (err) { + pr_err("Cannot register device (%d).\n", + err); + cw1200_pm_deinit(&priv->pm_state); + return err; + } + +#ifdef CONFIG_CW1200_ETF +done: +#endif + cw1200_debug_init(priv); + + pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy)); + return 0; +} + +static void cw1200_free_common(struct ieee80211_hw *dev) +{ + ieee80211_free_hw(dev); +} + +static void cw1200_unregister_common(struct ieee80211_hw *dev) +{ + struct cw1200_common *priv = dev->priv; + int i; + +#ifdef CONFIG_CW1200_ETF + if (!etf_mode) { +#endif + ieee80211_unregister_hw(dev); +#ifdef CONFIG_CW1200_ETF + } +#endif + + del_timer_sync(&priv->mcast_timeout); + cw1200_unregister_bh(priv); + + cw1200_debug_release(priv); + + mutex_destroy(&priv->conf_mutex); + + wsm_buf_deinit(&priv->wsm_cmd_buf); + + destroy_workqueue(priv->workqueue); + priv->workqueue = NULL; + + if (priv->sdd) { + release_firmware(priv->sdd); + priv->sdd = NULL; + } + + for (i = 0; i < 4; ++i) + cw1200_queue_deinit(&priv->tx_queue[i]); + + cw1200_queue_stats_deinit(&priv->tx_queue_stats); + cw1200_pm_deinit(&priv->pm_state); +} + +/* Clock is in KHz */ +u32 cw1200_dpll_from_clk(u16 clk) +{ + switch (clk) { + case 0x32C8: + return 0x1D89D241; + case 0x3E80: + return 0x1E1; + case 0x41A0: + return 0x124931C1; + case 0x4B00: + return 0x191; + case 0x5DC0: + return 0x141; + case 0x6590: + return 0x0EC4F121; + case 0x8340: + return 0x92490E1; + case 0x9600: + return 0x100010C1; + case 0x9C40: + return 0xC1; + case 0xBB80: + return 0xA1; + case 0xCB20: + return 0x7627091; + default: + pr_err("ERROR: Unknown Reference clock frequency found (0x%04x), using default (26MHz)\n", clk); + return 0x0EC4F121; + } +} + +int cw1200_core_probe(const struct sbus_ops *sbus_ops, + struct sbus_priv *sbus, + struct device *pdev, + struct cw1200_common **core, + int ref_clk, const u8 *macaddr, + const char *sdd_path, bool have_5ghz) +{ + int err = -EINVAL; + struct ieee80211_hw *dev; + struct cw1200_common *priv; + struct wsm_operational_mode mode = { + .power_mode = cw1200_power_mode, + .disable_more_flag_usage = true, + }; + + dev = cw1200_init_common(macaddr, have_5ghz); + if (!dev) + goto err; + + priv = dev->priv; + priv->hw_refclk = ref_clk; + if (cw1200_refclk) + priv->hw_refclk = cw1200_refclk; + + priv->sdd_path = (char *)sdd_path; + if (cw1200_sdd_path) + priv->sdd_path = cw1200_sdd_path; + + priv->sbus_ops = sbus_ops; + priv->sbus_priv = sbus; + priv->pdev = pdev; + SET_IEEE80211_DEV(priv->hw, pdev); + + /* Pass struct cw1200_common back up */ + *core = priv; + + err = cw1200_register_bh(priv); + if (err) + goto err1; + +#ifdef CONFIG_CW1200_ETF + if (etf_mode) + goto skip_fw; +#endif + + err = cw1200_load_firmware(priv); + if (err) + goto err2; + + if (wait_event_interruptible_timeout(priv->wsm_startup_done, + priv->firmware_ready, + 3*HZ) <= 0) { + /* TODO: Need to find how to reset device + in QUEUE mode properly. + */ + pr_err("Timeout waiting on device startup\n"); + err = -ETIMEDOUT; + goto err2; + } + + /* Set low-power mode. */ + wsm_set_operational_mode(priv, &mode); + + /* Enable multi-TX confirmation */ + wsm_use_multi_tx_conf(priv, true); + +#ifdef CONFIG_CW1200_ETF +skip_fw: +#endif + err = cw1200_register_common(dev); + if (err) + goto err2; + + return err; + +err2: + cw1200_unregister_bh(priv); +err1: + cw1200_free_common(dev); +err: + *core = NULL; + return err; +} +EXPORT_SYMBOL_GPL(cw1200_core_probe); + +void cw1200_core_release(struct cw1200_common *self) +{ + /* Disable device interrupts */ + self->sbus_ops->lock(self->sbus_priv); + __cw1200_irq_enable(self, 0); + self->sbus_ops->unlock(self->sbus_priv); + + /* And then clean up */ + cw1200_unregister_common(self->hw); + cw1200_free_common(self->hw); + return; +} +EXPORT_SYMBOL_GPL(cw1200_core_release); diff --git a/drivers/net/wireless/cw1200/sbus.h b/drivers/net/wireless/cw1200/sbus.h new file mode 100644 index 0000000..cd20c44 --- /dev/null +++ b/drivers/net/wireless/cw1200/sbus.h @@ -0,0 +1,35 @@ +/* + * Common sbus abstraction layer interface for cw1200 wireless driver + * + * Copyright (c) 2010, ST-Ericsson + * Author: Dmitry Tarnyagin + * + * 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. + */ + +#ifndef CW1200_SBUS_H +#define CW1200_SBUS_H + +/* + * sbus priv forward definition. + * Implemented and instantiated in particular modules. + */ +struct sbus_priv; + +void cw1200_irq_handler(struct cw1200_common *priv); +int __cw1200_irq_enable(struct cw1200_common *priv, int enable); /* Must be wrapped with sbus_ops->lock/unlock! */ + +struct sbus_ops { + int (*sbus_memcpy_fromio)(struct sbus_priv *self, unsigned int addr, + void *dst, int count); + int (*sbus_memcpy_toio)(struct sbus_priv *self, unsigned int addr, + const void *src, int count); + void (*lock)(struct sbus_priv *self); + void (*unlock)(struct sbus_priv *self); + size_t (*align_size)(struct sbus_priv *self, size_t size); + int (*power_mgmt)(struct sbus_priv *self, bool suspend); +}; + +#endif /* CW1200_SBUS_H */ -- 1.8.1.4