X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fiwlwifi%2Fiwl-3945.c;h=b5b23b1ad240de5f6d8a7f108332db48a7450385;hb=64a76b504b04b5da16d1e7658a95dd126594e02f;hp=acb38750535f549b72fabfd0ddf2de3e1fc53e56;hpb=1156b2c689bf509cdc254394598d410787a02aec;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index acb3875..4609323 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -19,33 +19,36 @@ * file called LICENSE. * * Contact Information: - * James P. Ketrenos + * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include #include -#include #include #include #include #include +#include #include #include #include #include -#include - #include -#include - -#define IWL 3945 +#include +#include -#include "iwlwifi.h" -#include "iwl-helpers.h" +#include "iwl-fh.h" +#include "iwl-3945-fh.h" +#include "iwl-commands.h" +#include "iwl-sta.h" #include "iwl-3945.h" -#include "iwl-3945-rs.h" +#include "iwl-eeprom.h" +#include "iwl-helpers.h" +#include "iwl-core.h" +#include "iwl-led.h" +#include "iwl-3945-led.h" #define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \ [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ @@ -55,7 +58,9 @@ IWL_RATE_##rp##M_INDEX, \ IWL_RATE_##rn##M_INDEX, \ IWL_RATE_##pp##M_INDEX, \ - IWL_RATE_##np##M_INDEX } + IWL_RATE_##np##M_INDEX, \ + IWL_RATE_##r##M_INDEX_TABLE, \ + IWL_RATE_##ip##M_INDEX_TABLE } /* * Parameter order: @@ -65,7 +70,11 @@ * maps to IWL_RATE_INVALID * */ -const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { +const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = { + IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ + IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ + IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ + IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */ IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */ IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */ @@ -74,18 +83,14 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */ IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */ IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */ - IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ - IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ - IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ - IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ }; -/* 1 = enable the iwl_disable_events() function */ +/* 1 = enable the iwl3945_disable_events() function */ #define IWL_EVT_DISABLE (0) #define IWL_EVT_DISABLE_SIZE (1532/32) /** - * iwl_disable_events - Disable selected events in uCode event log + * iwl3945_disable_events - Disable selected events in uCode event log * * Disable an event by writing "1"s into "disable" * bitmap in SRAM. Bit position corresponds to Event # (id/type). @@ -93,9 +98,8 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { * Use for only special debugging. This function is just a placeholder as-is, * you'll need to provide the special bits! ... * ... and set IWL_EVT_DISABLE to 1. */ -void iwl_disable_events(struct iwl_priv *priv) +void iwl3945_disable_events(struct iwl_priv *priv) { - int rc; int i; u32 base; /* SRAM address of event log header */ u32 disable_ptr; /* SRAM address of event-disable bitmap array */ @@ -151,187 +155,512 @@ void iwl_disable_events(struct iwl_priv *priv) }; base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - if (!iwl_hw_valid_rtc_data_addr(base)) { - IWL_ERROR("Invalid event log pointer 0x%08X\n", base); + if (!iwl3945_hw_valid_rtc_data_addr(base)) { + IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); return; } - rc = iwl_grab_restricted_access(priv); - if (rc) { - IWL_WARNING("Can not read from adapter at this time.\n"); - return; - } - - disable_ptr = iwl_read_restricted_mem(priv, base + (4 * sizeof(u32))); - array_size = iwl_read_restricted_mem(priv, base + (5 * sizeof(u32))); - iwl_release_restricted_access(priv); + disable_ptr = iwl_read_targ_mem(priv, base + (4 * sizeof(u32))); + array_size = iwl_read_targ_mem(priv, base + (5 * sizeof(u32))); if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) { - IWL_DEBUG_INFO("Disabling selected uCode log events at 0x%x\n", + IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n", disable_ptr); - rc = iwl_grab_restricted_access(priv); for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++) - iwl_write_restricted_mem(priv, - disable_ptr + - (i * sizeof(u32)), - evt_disable[i]); + iwl_write_targ_mem(priv, + disable_ptr + (i * sizeof(u32)), + evt_disable[i]); - iwl_release_restricted_access(priv); } else { - IWL_DEBUG_INFO("Selected uCode log events may be disabled\n"); - IWL_DEBUG_INFO(" by writing \"1\"s into disable bitmap\n"); - IWL_DEBUG_INFO(" in SRAM at 0x%x, size %d u32s\n", + IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n"); + IWL_DEBUG_INFO(priv, " by writing \"1\"s into disable bitmap\n"); + IWL_DEBUG_INFO(priv, " in SRAM at 0x%x, size %d u32s\n", disable_ptr, array_size); } } +static int iwl3945_hwrate_to_plcp_idx(u8 plcp) +{ + int idx; + + for (idx = 0; idx < IWL_RATE_COUNT; idx++) + if (iwl3945_rates[idx].plcp == plcp) + return idx; + return -1; +} + +#ifdef CONFIG_IWLWIFI_DEBUG +#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x + +static const char *iwl3945_get_tx_fail_reason(u32 status) +{ + switch (status & TX_STATUS_MSK) { + case TX_STATUS_SUCCESS: + return "SUCCESS"; + TX_STATUS_ENTRY(SHORT_LIMIT); + TX_STATUS_ENTRY(LONG_LIMIT); + TX_STATUS_ENTRY(FIFO_UNDERRUN); + TX_STATUS_ENTRY(MGMNT_ABORT); + TX_STATUS_ENTRY(NEXT_FRAG); + TX_STATUS_ENTRY(LIFE_EXPIRE); + TX_STATUS_ENTRY(DEST_PS); + TX_STATUS_ENTRY(ABORTED); + TX_STATUS_ENTRY(BT_RETRY); + TX_STATUS_ENTRY(STA_INVALID); + TX_STATUS_ENTRY(FRAG_DROPPED); + TX_STATUS_ENTRY(TID_DISABLE); + TX_STATUS_ENTRY(FRAME_FLUSHED); + TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); + TX_STATUS_ENTRY(TX_LOCKED); + TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); + } + + return "UNKNOWN"; +} +#else +static inline const char *iwl3945_get_tx_fail_reason(u32 status) +{ + return ""; +} +#endif + +/* + * get ieee prev rate from rate scale table. + * for A and B mode we need to overright prev + * value + */ +int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate) +{ + int next_rate = iwl3945_get_prev_ieee_rate(rate); + + switch (priv->band) { + case IEEE80211_BAND_5GHZ: + if (rate == IWL_RATE_12M_INDEX) + next_rate = IWL_RATE_9M_INDEX; + else if (rate == IWL_RATE_6M_INDEX) + next_rate = IWL_RATE_6M_INDEX; + break; + case IEEE80211_BAND_2GHZ: + if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) && + iwl_is_associated(priv)) { + if (rate == IWL_RATE_11M_INDEX) + next_rate = IWL_RATE_5M_INDEX; + } + break; + + default: + break; + } + + return next_rate; +} + + /** - * iwl3945_get_antenna_flags - Get antenna flags for RXON command - * @priv: eeprom and antenna fields are used to determine antenna flags - * - * priv->eeprom is used to determine if antenna AUX/MAIN are reversed - * priv->antenna specifies the antenna diversity mode: + * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd * - * IWL_ANTENNA_DIVERISTY - NIC selects best antenna by itself - * IWL_ANTENNA_MAIN - Force MAIN antenna - * IWL_ANTENNA_AUX - Force AUX antenna + * When FW advances 'R' index, all entries between old and new 'R' index + * need to be reclaimed. As result, some free space forms. If there is + * enough free space (> low mark), wake the stack that feeds us. */ -__le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) +static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv, + int txq_id, int index) { - switch (priv->antenna) { - case IWL_ANTENNA_DIVERSITY: - return 0; + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_queue *q = &txq->q; + struct iwl_tx_info *tx_info; + + BUG_ON(txq_id == IWL_CMD_QUEUE_NUM); - case IWL_ANTENNA_MAIN: - if (priv->eeprom.antenna_switch_type) - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; + for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { - case IWL_ANTENNA_AUX: - if (priv->eeprom.antenna_switch_type) - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; - return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; + tx_info = &txq->txb[txq->q.read_ptr]; + ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb[0]); + tx_info->skb[0] = NULL; + priv->cfg->ops->lib->txq_free_tfd(priv, txq); } - /* bad antenna selector value */ - IWL_ERROR("Bad antenna selector value (0x%x)\n", priv->antenna); - return 0; /* "diversity" is default if error */ + if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) && + (txq_id != IWL_CMD_QUEUE_NUM) && + priv->mac80211_registered) + iwl_wake_queue(priv, txq_id); } +/** + * iwl3945_rx_reply_tx - Handle Tx response + */ +static void iwl3945_rx_reply_tx(struct iwl_priv *priv, + struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + u16 sequence = le16_to_cpu(pkt->hdr.sequence); + int txq_id = SEQ_TO_QUEUE(sequence); + int index = SEQ_TO_INDEX(sequence); + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct ieee80211_tx_info *info; + struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; + u32 status = le32_to_cpu(tx_resp->status); + int rate_idx; + int fail; + + if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) { + IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d " + "is out of range [0-%d] %d %d\n", txq_id, + index, txq->q.n_bd, txq->q.write_ptr, + txq->q.read_ptr); + return; + } + + info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); + ieee80211_tx_info_clear_status(info); + + /* Fill the MRR chain with some info about on-chip retransmissions */ + rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx -= IWL_FIRST_OFDM_RATE; + + fail = tx_resp->failure_frame; + + info->status.rates[0].idx = rate_idx; + info->status.rates[0].count = fail + 1; /* add final attempt */ + + /* tx_status->rts_retry_count = tx_resp->failure_rts; */ + info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? + IEEE80211_TX_STAT_ACK : 0; + + IWL_DEBUG_TX(priv, "Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", + txq_id, iwl3945_get_tx_fail_reason(status), status, + tx_resp->rate, tx_resp->failure_frame); + + IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index); + iwl3945_tx_queue_reclaim(priv, txq_id, index); + + if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) + IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n"); +} + + + /***************************************************************************** * * Intel PRO/Wireless 3945ABG/BG Network Connection * * RX handler implementations * - * Used by iwl-base.c - * *****************************************************************************/ -void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) +void iwl3945_hw_rx_statistics(struct iwl_priv *priv, + struct iwl_rx_mem_buffer *rxb) { - struct iwl_rx_packet *pkt = (void *)rxb->skb->data; - IWL_DEBUG_RX("Statistics notification received (%d vs %d).\n", - (int)sizeof(struct iwl_notif_statistics), - le32_to_cpu(pkt->len)); + struct iwl_rx_packet *pkt = rxb_addr(rxb); + IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n", + (int)sizeof(struct iwl3945_notif_statistics), + le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); + + memcpy(&priv->statistics_39, pkt->u.raw, sizeof(priv->statistics_39)); +} - memcpy(&priv->statistics, pkt->u.raw, sizeof(priv->statistics)); +/****************************************************************************** + * + * Misc. internal state and helper functions + * + ******************************************************************************/ +#ifdef CONFIG_IWLWIFI_DEBUG - priv->last_statistics_time = jiffies; +/** + * iwl3945_report_frame - dump frame to syslog during debug sessions + * + * You may hack this function to show different aspects of received frames, + * including selective frame dumps. + * group100 parameter selects whether to show 1 out of 100 good frames. + */ +static void _iwl3945_dbg_report_frame(struct iwl_priv *priv, + struct iwl_rx_packet *pkt, + struct ieee80211_hdr *header, int group100) +{ + u32 to_us; + u32 print_summary = 0; + u32 print_dump = 0; /* set to 1 to dump all frames' contents */ + u32 hundred = 0; + u32 dataframe = 0; + __le16 fc; + u16 seq_ctl; + u16 channel; + u16 phy_flags; + u16 length; + u16 status; + u16 bcn_tmr; + u32 tsf_low; + u64 tsf; + u8 rssi; + u8 agc; + u16 sig_avg; + u16 noise_diff; + struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); + struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); + struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); + u8 *data = IWL_RX_DATA(pkt); + + /* MAC header */ + fc = header->frame_control; + seq_ctl = le16_to_cpu(header->seq_ctrl); + + /* metadata */ + channel = le16_to_cpu(rx_hdr->channel); + phy_flags = le16_to_cpu(rx_hdr->phy_flags); + length = le16_to_cpu(rx_hdr->len); + + /* end-of-frame status and timestamp */ + status = le32_to_cpu(rx_end->status); + bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp); + tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff; + tsf = le64_to_cpu(rx_end->timestamp); + + /* signal statistics */ + rssi = rx_stats->rssi; + agc = rx_stats->agc; + sig_avg = le16_to_cpu(rx_stats->sig_avg); + noise_diff = le16_to_cpu(rx_stats->noise_diff); + + to_us = !compare_ether_addr(header->addr1, priv->mac_addr); + + /* if data frame is to us and all is good, + * (optionally) print summary for only 1 out of every 100 */ + if (to_us && (fc & ~cpu_to_le16(IEEE80211_FCTL_PROTECTED)) == + cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) { + dataframe = 1; + if (!group100) + print_summary = 1; /* print each frame */ + else if (priv->framecnt_to_us < 100) { + priv->framecnt_to_us++; + print_summary = 0; + } else { + priv->framecnt_to_us = 0; + print_summary = 1; + hundred = 1; + } + } else { + /* print summary for all other frames */ + print_summary = 1; + } + + if (print_summary) { + char *title; + int rate; + + if (hundred) + title = "100Frames"; + else if (ieee80211_has_retry(fc)) + title = "Retry"; + else if (ieee80211_is_assoc_resp(fc)) + title = "AscRsp"; + else if (ieee80211_is_reassoc_resp(fc)) + title = "RasRsp"; + else if (ieee80211_is_probe_resp(fc)) { + title = "PrbRsp"; + print_dump = 1; /* dump frame contents */ + } else if (ieee80211_is_beacon(fc)) { + title = "Beacon"; + print_dump = 1; /* dump frame contents */ + } else if (ieee80211_is_atim(fc)) + title = "ATIM"; + else if (ieee80211_is_auth(fc)) + title = "Auth"; + else if (ieee80211_is_deauth(fc)) + title = "DeAuth"; + else if (ieee80211_is_disassoc(fc)) + title = "DisAssoc"; + else + title = "Frame"; + + rate = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate); + if (rate == -1) + rate = 0; + else + rate = iwl3945_rates[rate].ieee / 2; + + /* print frame summary. + * MAC addresses show just the last byte (for brevity), + * but you can hack it to show more, if you'd like to. */ + if (dataframe) + IWL_DEBUG_RX(priv, "%s: mhd=0x%04x, dst=0x%02x, " + "len=%u, rssi=%d, chnl=%d, rate=%d, \n", + title, le16_to_cpu(fc), header->addr1[5], + length, rssi, channel, rate); + else { + /* src/dst addresses assume managed mode */ + IWL_DEBUG_RX(priv, "%s: 0x%04x, dst=0x%02x, " + "src=0x%02x, rssi=%u, tim=%lu usec, " + "phy=0x%02x, chnl=%d\n", + title, le16_to_cpu(fc), header->addr1[5], + header->addr3[5], rssi, + tsf_low - priv->scan_start_tsf, + phy_flags, channel); + } + } + if (print_dump) + iwl_print_hex_dump(priv, IWL_DL_RX, data, length); +} + +static void iwl3945_dbg_report_frame(struct iwl_priv *priv, + struct iwl_rx_packet *pkt, + struct ieee80211_hdr *header, int group100) +{ + if (iwl_get_debug_level(priv) & IWL_DL_RX) + _iwl3945_dbg_report_frame(priv, pkt, header, group100); } -static void iwl3945_handle_data_packet(struct iwl_priv *priv, int is_data, +#else +static inline void iwl3945_dbg_report_frame(struct iwl_priv *priv, + struct iwl_rx_packet *pkt, + struct ieee80211_hdr *header, int group100) +{ +} +#endif + +/* This is necessary only for a number of statistics, see the caller. */ +static int iwl3945_is_network_packet(struct iwl_priv *priv, + struct ieee80211_hdr *header) +{ + /* Filter incoming packets to determine if they are targeted toward + * this network, discarding packets coming from ourselves */ + switch (priv->iw_mode) { + case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */ + /* packets to our IBSS update information */ + return !compare_ether_addr(header->addr3, priv->bssid); + case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */ + /* packets to our IBSS update information */ + return !compare_ether_addr(header->addr2, priv->bssid); + default: + return 1; + } +} + +static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb, - struct ieee80211_rx_status *stats, - u16 phy_flags) + struct ieee80211_rx_status *stats) { - struct ieee80211_hdr *hdr; - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); - struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt); - short len = le16_to_cpu(rx_hdr->len); + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt); + struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); + struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); + u16 len = le16_to_cpu(rx_hdr->len); + struct sk_buff *skb; + int ret; + __le16 fc = hdr->frame_control; /* We received data from the HW, so stop the watchdog */ - if (unlikely((len + IWL_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) { - IWL_DEBUG_DROP("Corruption detected!\n"); + if (unlikely(len + IWL39_RX_FRAME_SIZE > + PAGE_SIZE << priv->hw_params.rx_page_order)) { + IWL_DEBUG_DROP(priv, "Corruption detected!\n"); return; } /* We only process data packets if the interface is open */ if (unlikely(!priv->is_open)) { - IWL_DEBUG_DROP_LIMIT - ("Dropping packet while interface is not open.\n"); + IWL_DEBUG_DROP_LIMIT(priv, + "Dropping packet while interface is not open.\n"); return; } - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - if (iwl_param_hwcrypto) - iwl_set_decrypted_flag(priv, rxb->skb, - le32_to_cpu(rx_end->status), - stats); - iwl_handle_data_packet_monitor(priv, rxb, IWL_RX_DATA(pkt), - len, stats, phy_flags); + + skb = alloc_skb(IWL_LINK_HDR_MAX * 2, GFP_ATOMIC); + if (!skb) { + IWL_ERR(priv, "alloc_skb failed\n"); return; } - skb_reserve(rxb->skb, (void *)rx_hdr->payload - (void *)pkt); - /* Set the size of the skb to the size of the frame */ - skb_put(rxb->skb, le16_to_cpu(rx_hdr->len)); + if (!iwl3945_mod_params.sw_crypto) + iwl_set_decrypted_flag(priv, + (struct ieee80211_hdr *)rxb_addr(rxb), + le32_to_cpu(rx_end->status), stats); - hdr = (void *)rxb->skb->data; + skb_reserve(skb, IWL_LINK_HDR_MAX); + skb_add_rx_frag(skb, 0, rxb->page, + (void *)rx_hdr->payload - (void *)pkt, len); + + /* mac80211 currently doesn't support paged SKB. Convert it to + * linear SKB for management frame and data frame requires + * software decryption or software defragementation. */ + if (ieee80211_is_mgmt(fc) || + ieee80211_has_protected(fc) || + ieee80211_has_morefrags(fc) || + le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) + ret = skb_linearize(skb); + else + ret = __pskb_pull_tail(skb, min_t(u16, IWL_LINK_HDR_MAX, len)) ? + 0 : -ENOMEM; - if (iwl_param_hwcrypto) - iwl_set_decrypted_flag(priv, rxb->skb, - le32_to_cpu(rx_end->status), stats); + if (ret) { + kfree_skb(skb); + goto out; + } + + /* + * XXX: We cannot touch the page and its virtual memory (pkt) after + * here. It might have already been freed by the above skb change. + */ + + iwl_update_stats(priv, false, fc, len); + memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); - rxb->skb = NULL; + ieee80211_rx(priv->hw, skb); + out: + priv->alloc_rxb_page--; + rxb->page = NULL; } +#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) + static void iwl3945_rx_reply_rx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { - struct iwl_rx_packet *pkt = (void *)rxb->skb->data; - struct iwl_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); - struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); - struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt); struct ieee80211_hdr *header; - u16 phy_flags = le16_to_cpu(rx_hdr->phy_flags); + struct ieee80211_rx_status rx_status; + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); + struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); + struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); + int snr; u16 rx_stats_sig_avg = le16_to_cpu(rx_stats->sig_avg); u16 rx_stats_noise_diff = le16_to_cpu(rx_stats->noise_diff); - struct ieee80211_rx_status stats = { - .mactime = le64_to_cpu(rx_end->timestamp), - .freq = ieee80211chan2mhz(le16_to_cpu(rx_hdr->channel)), - .channel = le16_to_cpu(rx_hdr->channel), - .phymode = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? - MODE_IEEE80211G : MODE_IEEE80211A, - .antenna = 0, - .rate = rx_hdr->rate, - .flag = 0, - }; u8 network_packet; - int snr; + + rx_status.flag = 0; + rx_status.mactime = le64_to_cpu(rx_end->timestamp); + rx_status.freq = + ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel)); + rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? + IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; + + rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate); + if (rx_status.band == IEEE80211_BAND_5GHZ) + rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; + + rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) & + RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; + + /* set the preamble flag if appropriate */ + if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) + rx_status.flag |= RX_FLAG_SHORTPRE; if ((unlikely(rx_stats->phy_count > 20))) { - IWL_DEBUG_DROP - ("dsp size out of range [0,20]: " - "%d/n", rx_stats->phy_count); + IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n", + rx_stats->phy_count); return; } if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { - IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status); + IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status); return; } - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - iwl3945_handle_data_packet(priv, 1, rxb, &stats, phy_flags); - return; - } + /* Convert 3945's rssi indicator to dBm */ - stats.ssi = rx_stats->rssi - IWL_RSSI_OFFSET; + rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET; /* Set default noise value to -127 */ if (priv->last_rx_noise == 0) @@ -347,174 +676,75 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv, * signal-to-noise ratio (SNR) is (sig_avg / noise_diff). * Convert linear SNR to dB SNR, then subtract that from rssi dBm * to obtain noise level in dBm. - * Calculate stats.signal (quality indicator in %) based on SNR. */ + * Calculate rx_status.signal (quality indicator in %) based on SNR. */ if (rx_stats_noise_diff) { snr = rx_stats_sig_avg / rx_stats_noise_diff; - stats.noise = stats.ssi - iwl_calc_db_from_ratio(snr); - stats.signal = iwl_calc_sig_qual(stats.ssi, stats.noise); + rx_status.noise = rx_status.signal - + iwl3945_calc_db_from_ratio(snr); + rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, + rx_status.noise); /* If noise info not available, calculate signal quality indicator (%) * using just the dBm signal level. */ } else { - stats.noise = priv->last_rx_noise; - stats.signal = iwl_calc_sig_qual(stats.ssi, 0); + rx_status.noise = priv->last_rx_noise; + rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, 0); } - IWL_DEBUG_STATS("Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n", - stats.ssi, stats.noise, stats.signal, + IWL_DEBUG_STATS(priv, "Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n", + rx_status.signal, rx_status.noise, rx_status.qual, rx_stats_sig_avg, rx_stats_noise_diff); - stats.freq = ieee80211chan2mhz(stats.channel); - - /* can be covered by iwl_report_frame() in most cases */ -/* IWL_DEBUG_RX("RX status: 0x%08X\n", rx_end->status); */ - header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt); - network_packet = iwl_is_network_packet(priv, header); + network_packet = iwl3945_is_network_packet(priv, header); -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & IWL_DL_STATS && net_ratelimit()) - IWL_DEBUG_STATS - ("[%c] %d RSSI: %d Signal: %u, Noise: %u, Rate: %u\n", - network_packet ? '*' : ' ', - stats.channel, stats.ssi, stats.ssi, - stats.ssi, stats.rate); - - if (iwl_debug_level & (IWL_DL_RX)) - /* Set "1" to report good data frames in groups of 100 */ - iwl_report_frame(priv, pkt, header, 1); -#endif + IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Noise:%u, Rate:%u\n", + network_packet ? '*' : ' ', + le16_to_cpu(rx_hdr->channel), + rx_status.signal, rx_status.signal, + rx_status.noise, rx_status.rate_idx); + + /* Set "1" to report good data frames in groups of 100 */ + iwl3945_dbg_report_frame(priv, pkt, header, 1); + iwl_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len), header); if (network_packet) { priv->last_beacon_time = le32_to_cpu(rx_end->beacon_timestamp); priv->last_tsf = le64_to_cpu(rx_end->timestamp); - priv->last_rx_rssi = stats.ssi; - priv->last_rx_noise = stats.noise; + priv->last_rx_rssi = rx_status.signal; + priv->last_rx_noise = rx_status.noise; } - switch (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_MGMT: - switch (le16_to_cpu(header->frame_control) & - IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_PROBE_RESP: - case IEEE80211_STYPE_BEACON:{ - /* If this is a beacon or probe response for - * our network then cache the beacon - * timestamp */ - if ((((priv->iw_mode == IEEE80211_IF_TYPE_STA) - && !compare_ether_addr(header->addr2, - priv->bssid)) || - ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) - && !compare_ether_addr(header->addr3, - priv->bssid)))) { - struct ieee80211_mgmt *mgmt = - (struct ieee80211_mgmt *)header; - __le32 *pos; - pos = - (__le32 *) & mgmt->u.beacon. - timestamp; - priv->timestamp0 = le32_to_cpu(pos[0]); - priv->timestamp1 = le32_to_cpu(pos[1]); - priv->beacon_int = le16_to_cpu( - mgmt->u.beacon.beacon_int); - if (priv->call_post_assoc_from_beacon && - (priv->iw_mode == - IEEE80211_IF_TYPE_STA)) - queue_work(priv->workqueue, - &priv->post_associate.work); - - priv->call_post_assoc_from_beacon = 0; - } - - break; - } - - case IEEE80211_STYPE_ACTION: - /* TODO: Parse 802.11h frames for CSA... */ - break; - - /* - * TODO: There is no callback function from upper - * stack to inform us when associated status. this - * work around to sniff assoc_resp management frame - * and finish the association process. - */ - case IEEE80211_STYPE_ASSOC_RESP: - case IEEE80211_STYPE_REASSOC_RESP:{ - struct ieee80211_mgmt *mgnt = - (struct ieee80211_mgmt *)header; - priv->assoc_id = (~((1 << 15) | (1 << 14)) & - le16_to_cpu(mgnt->u. - assoc_resp.aid)); - priv->assoc_capability = - le16_to_cpu(mgnt->u.assoc_resp.capab_info); - if (priv->beacon_int) - queue_work(priv->workqueue, - &priv->post_associate.work); - else - priv->call_post_assoc_from_beacon = 1; - break; - } - - case IEEE80211_STYPE_PROBE_REQ:{ - DECLARE_MAC_BUF(mac1); - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); - if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) - IWL_DEBUG_DROP - ("Dropping (non network): %s" - ", %s, %s\n", - print_mac(mac1, header->addr1), - print_mac(mac2, header->addr2), - print_mac(mac3, header->addr3)); - return; - } - } - - iwl3945_handle_data_packet(priv, 0, rxb, &stats, phy_flags); - break; - - case IEEE80211_FTYPE_CTL: - break; - - case IEEE80211_FTYPE_DATA: { - DECLARE_MAC_BUF(mac1); - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); - - if (unlikely(is_duplicate_packet(priv, header))) - IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n", - print_mac(mac1, header->addr1), - print_mac(mac2, header->addr2), - print_mac(mac3, header->addr3)); - else - iwl3945_handle_data_packet(priv, 1, rxb, &stats, - phy_flags); - break; - } - } + iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status); } -int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, - dma_addr_t addr, u16 len) +int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, + struct iwl_tx_queue *txq, + dma_addr_t addr, u16 len, u8 reset, u8 pad) { int count; - u32 pad; - struct iwl_tfd_frame *tfd = (struct iwl_tfd_frame *)ptr; + struct iwl_queue *q; + struct iwl3945_tfd *tfd, *tfd_tmp; + + q = &txq->q; + tfd_tmp = (struct iwl3945_tfd *)txq->tfds; + tfd = &tfd_tmp[q->write_ptr]; + + if (reset) + memset(tfd, 0, sizeof(*tfd)); count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); - pad = TFD_CTL_PAD_GET(le32_to_cpu(tfd->control_flags)); if ((count >= NUM_TFD_CHUNKS) || (count < 0)) { - IWL_ERROR("Error can not send more than %d chunks\n", + IWL_ERR(priv, "Error can not send more than %d chunks\n", NUM_TFD_CHUNKS); return -EINVAL; } - tfd->pa[count].addr = cpu_to_le32(addr); - tfd->pa[count].len = cpu_to_le32(len); + tfd->tbs[count].addr = cpu_to_le32(addr); + tfd->tbs[count].len = cpu_to_le32(len); count++; @@ -525,128 +755,101 @@ int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, } /** - * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.last_used] + * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr] * * Does NOT advance any indexes */ -int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) +void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0]; - struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used]; + struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds; + int index = txq->q.read_ptr; + struct iwl3945_tfd *tfd = &tfd_tmp[index]; struct pci_dev *dev = priv->pci_dev; int i; int counter; - /* classify bd */ - if (txq->q.id == IWL_CMD_QUEUE_NUM) - /* nothing to cleanup after for host commands */ - return 0; - /* sanity check */ - counter = TFD_CTL_COUNT_GET(le32_to_cpu(bd->control_flags)); + counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); if (counter > NUM_TFD_CHUNKS) { - IWL_ERROR("Too many chunks: %i\n", counter); + IWL_ERR(priv, "Too many chunks: %i\n", counter); /* @todo issue fatal error, it is quite serious situation */ - return 0; + return; } + /* Unmap tx_cmd */ + if (counter) + pci_unmap_single(dev, + pci_unmap_addr(&txq->meta[index], mapping), + pci_unmap_len(&txq->meta[index], len), + PCI_DMA_TODEVICE); + /* unmap chunks if any */ for (i = 1; i < counter; i++) { - pci_unmap_single(dev, le32_to_cpu(bd->pa[i].addr), - le32_to_cpu(bd->pa[i].len), PCI_DMA_TODEVICE); - if (txq->txb[txq->q.last_used].skb[0]) { - struct sk_buff *skb = txq->txb[txq->q.last_used].skb[0]; - if (txq->txb[txq->q.last_used].skb[0]) { + pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr), + le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE); + if (txq->txb[txq->q.read_ptr].skb[0]) { + struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0]; + if (txq->txb[txq->q.read_ptr].skb[0]) { /* Can be called from interrupt context */ dev_kfree_skb_any(skb); - txq->txb[txq->q.last_used].skb[0] = NULL; + txq->txb[txq->q.read_ptr].skb[0] = NULL; } } } - return 0; -} - -u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 *addr) -{ - int i; - int ret = IWL_INVALID_STATION; - unsigned long flags; - DECLARE_MAC_BUF(mac); - - spin_lock_irqsave(&priv->sta_lock, flags); - for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) - if ((priv->stations[i].used) && - (!compare_ether_addr - (priv->stations[i].sta.sta.addr, addr))) { - ret = i; - goto out; - } - - IWL_DEBUG_INFO("can not find STA %s (total %d)\n", - print_mac(mac, addr), priv->num_stations); - out: - spin_unlock_irqrestore(&priv->sta_lock, flags); - return ret; + return ; } /** - * iwl_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: + * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: * */ -void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv, - struct iwl_cmd *cmd, - struct ieee80211_tx_control *ctrl, - struct ieee80211_hdr *hdr, int sta_id, int tx_id) +void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, + struct iwl_device_cmd *cmd, + struct ieee80211_tx_info *info, + struct ieee80211_hdr *hdr, + int sta_id, int tx_id) { - unsigned long flags; - u16 rate_index = min(ctrl->tx_rate & 0xffff, IWL_RATE_COUNT - 1); + u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value; + u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT - 1); u16 rate_mask; int rate; u8 rts_retry_limit; u8 data_retry_limit; __le32 tx_flags; - u16 fc = le16_to_cpu(hdr->frame_control); + __le16 fc = hdr->frame_control; + struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; - rate = iwl_rates[rate_index].plcp; - tx_flags = cmd->cmd.tx.tx_flags; + rate = iwl3945_rates[rate_index].plcp; + tx_flags = tx_cmd->tx_flags; /* We need to figure out how to get the sta->supp_rates while - * in this running context; perhaps encoding into ctrl->tx_rate? */ + * in this running context */ rate_mask = IWL_RATES_MASK; - spin_lock_irqsave(&priv->sta_lock, flags); - - priv->stations[sta_id].current_rate.rate_n_flags = rate; - if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && - (sta_id != IWL3945_BROADCAST_ID) && - (sta_id != IWL_MULTICAST_ID)) - priv->stations[IWL_STA_ID].current_rate.rate_n_flags = rate; - - spin_unlock_irqrestore(&priv->sta_lock, flags); + /* Set retry limit on DATA packets and Probe Responses*/ + if (ieee80211_is_probe_resp(fc)) + data_retry_limit = 3; + else + data_retry_limit = IWL_DEFAULT_TX_RETRY; + tx_cmd->data_retry_limit = data_retry_limit; if (tx_id >= IWL_CMD_QUEUE_NUM) rts_retry_limit = 3; else rts_retry_limit = 7; - if (ieee80211_is_probe_response(fc)) { - data_retry_limit = 3; - if (data_retry_limit < rts_retry_limit) - rts_retry_limit = data_retry_limit; - } else - data_retry_limit = IWL_DEFAULT_TX_RETRY; - - if (priv->data_retry_limit != -1) - data_retry_limit = priv->data_retry_limit; + if (data_retry_limit < rts_retry_limit) + rts_retry_limit = data_retry_limit; + tx_cmd->rts_retry_limit = rts_retry_limit; - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_AUTH: - case IEEE80211_STYPE_DEAUTH: - case IEEE80211_STYPE_ASSOC_REQ: - case IEEE80211_STYPE_REASSOC_REQ: + if (ieee80211_is_mgmt(fc)) { + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_AUTH): + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): + case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): if (tx_flags & TX_CMD_FLG_RTS_MSK) { tx_flags &= ~TX_CMD_FLG_RTS_MSK; tx_flags |= TX_CMD_FLG_CTS_MSK; @@ -657,21 +860,20 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv, } } - cmd->cmd.tx.rts_retry_limit = rts_retry_limit; - cmd->cmd.tx.data_retry_limit = data_retry_limit; - cmd->cmd.tx.rate = rate; - cmd->cmd.tx.tx_flags = tx_flags; + tx_cmd->rate = rate; + tx_cmd->tx_flags = tx_flags; /* OFDM */ - cmd->cmd.tx.supp_rates[0] = rate_mask & IWL_OFDM_RATES_MASK; + tx_cmd->supp_rates[0] = + ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF; /* CCK */ - cmd->cmd.tx.supp_rates[1] = (rate_mask >> 8) & 0xF; + tx_cmd->supp_rates[1] = (rate_mask & 0xF); - IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " + IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " "cck/ofdm mask: 0x%x/0x%x\n", sta_id, - cmd->cmd.tx.rate, le32_to_cpu(cmd->cmd.tx.tx_flags), - cmd->cmd.tx.supp_rates[1], cmd->cmd.tx.supp_rates[0]); + tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags), + tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]); } u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate, u8 flags) @@ -687,150 +889,90 @@ u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate, u8 flags) station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK; station->sta.rate_n_flags = cpu_to_le16(tx_rate); - station->current_rate.rate_n_flags = tx_rate; station->sta.mode = STA_CONTROL_MODIFY_MSK; spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - iwl_send_add_station(priv, &station->sta, flags); - IWL_DEBUG_RATE("SCALE sync station %d to rate %d\n", + iwl_send_add_sta(priv, &station->sta, flags); + IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n", sta_id, tx_rate); return sta_id; } -void iwl_hw_card_show_info(struct iwl_priv *priv) +static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) { - IWL_DEBUG_INFO("3945ABG HW Version %u.%u.%u\n", - ((priv->eeprom.board_revision >> 8) & 0x0F), - ((priv->eeprom.board_revision >> 8) >> 4), - (priv->eeprom.board_revision & 0x00FF)); - - IWL_DEBUG_INFO("3945ABG PBA Number %.*s\n", - (int)sizeof(priv->eeprom.board_pba_number), - priv->eeprom.board_pba_number); - - IWL_DEBUG_INFO("EEPROM_ANTENNA_SWITCH_TYPE is 0x%02X\n", - priv->eeprom.antenna_switch_type); -} - -static int iwl3945_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max) -{ - int rc; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - - if (!pwr_max) { - u32 val; - - rc = pci_read_config_dword(priv->pci_dev, - PCI_POWER_SOURCE, &val); - if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) { - iwl_set_bits_mask_restricted_reg(priv, APMG_PS_CTRL_REG, + if (src == IWL_PWR_SRC_VAUX) { + if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) { + iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_PWR_SRC_VAUX, ~APMG_PS_CTRL_MSK_PWR_SRC); - iwl_release_restricted_access(priv); iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VAUX_PWR_SRC, CSR_GPIO_IN_BIT_AUX_POWER, 5000); - } else - iwl_release_restricted_access(priv); + } } else { - iwl_set_bits_mask_restricted_reg(priv, APMG_PS_CTRL_REG, + iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, ~APMG_PS_CTRL_MSK_PWR_SRC); - iwl_release_restricted_access(priv); iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC, CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */ } - spin_unlock_irqrestore(&priv->lock, flags); - return rc; + return 0; } static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) { - int rc; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - - iwl_write_restricted(priv, FH_RCSR_RBD_BASE(0), rxq->dma_addr); - iwl_write_restricted(priv, FH_RCSR_RPTR_ADDR(0), - priv->hw_setting.shared_phys + - offsetof(struct iwl_shared, rx_read_ptr[0])); - iwl_write_restricted(priv, FH_RCSR_WPTR(0), 0); - iwl_write_restricted(priv, FH_RCSR_CONFIG(0), - ALM_FH_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | - ALM_FH_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | - ALM_FH_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | - ALM_FH_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | - (RX_QUEUE_SIZE_LOG << ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) | - ALM_FH_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | - (1 << ALM_FH_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) | - ALM_FH_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); + iwl_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->dma_addr); + iwl_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma); + iwl_write_direct32(priv, FH39_RCSR_WPTR(0), 0); + iwl_write_direct32(priv, FH39_RCSR_CONFIG(0), + FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | + FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | + FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | + FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | + (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) | + FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | + (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) | + FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); /* fake read to flush all prev I/O */ - iwl_read_restricted(priv, FH_RSSR_CTRL); - - iwl_release_restricted_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); + iwl_read_direct32(priv, FH39_RSSR_CTRL); return 0; } static int iwl3945_tx_reset(struct iwl_priv *priv) { - int rc; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } /* bypass mode */ - iwl_write_restricted_reg(priv, SCD_MODE_REG, 0x2); + iwl_write_prph(priv, ALM_SCD_MODE_REG, 0x2); /* RA 0 is active */ - iwl_write_restricted_reg(priv, SCD_ARASTAT_REG, 0x01); + iwl_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01); /* all 6 fifo are active */ - iwl_write_restricted_reg(priv, SCD_TXFACT_REG, 0x3f); - - iwl_write_restricted_reg(priv, SCD_SBYP_MODE_1_REG, 0x010000); - iwl_write_restricted_reg(priv, SCD_SBYP_MODE_2_REG, 0x030002); - iwl_write_restricted_reg(priv, SCD_TXF4MF_REG, 0x000004); - iwl_write_restricted_reg(priv, SCD_TXF5MF_REG, 0x000005); - - iwl_write_restricted(priv, FH_TSSR_CBB_BASE, - priv->hw_setting.shared_phys); - - iwl_write_restricted(priv, FH_TSSR_MSG_CONFIG, - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | - ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); - - iwl_release_restricted_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); + iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f); + + iwl_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000); + iwl_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002); + iwl_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004); + iwl_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005); + + iwl_write_direct32(priv, FH39_TSSR_CBB_BASE, + priv->shared_phys); + + iwl_write_direct32(priv, FH39_TSSR_MSG_CONFIG, + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | + FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); + return 0; } @@ -845,7 +987,12 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) int rc; int txq_id, slots_num; - iwl_hw_txq_ctx_free(priv); + iwl3945_hw_txq_ctx_free(priv); + + /* allocate tx queue structure */ + rc = iwl_alloc_txq_mem(priv); + if (rc) + return rc; /* Tx CMD queue */ rc = iwl3945_tx_reset(priv); @@ -853,13 +1000,13 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) goto error; /* Tx queue(s) */ - for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++) { + for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num, - txq_id); + txq_id); if (rc) { - IWL_ERROR("Tx %d queue init failed\n", txq_id); + IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); goto error; } } @@ -867,145 +1014,133 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) return rc; error: - iwl_hw_txq_ctx_free(priv); + iwl3945_hw_txq_ctx_free(priv); return rc; } -int iwl_hw_nic_init(struct iwl_priv *priv) + +/* + * Start up 3945's basic functionality after it has been reset + * (e.g. after platform boot, or shutdown via iwl_apm_stop()) + * NOTE: This does not load uCode nor start the embedded processor + */ +static int iwl3945_apm_init(struct iwl_priv *priv) { - u8 rev_id; - int rc; - unsigned long flags; - struct iwl_rx_queue *rxq = &priv->rxq; + int ret = iwl_apm_init(priv); - iwl_power_init_handle(priv); + /* Clear APMG (NIC's internal power management) interrupts */ + iwl_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0); + iwl_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF); - spin_lock_irqsave(&priv->lock, flags); - iwl_set_bit(priv, CSR_ANA_PLL_CFG, (1 << 24)); - iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); - - iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - rc = iwl_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); - if (rc < 0) { - spin_unlock_irqrestore(&priv->lock, flags); - IWL_DEBUG_INFO("Failed to init the card\n"); - return rc; - } + /* Reset radio chip */ + iwl_set_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ); + udelay(5); + iwl_clear_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - iwl_write_restricted_reg(priv, APMG_CLK_EN_REG, - APMG_CLK_VAL_DMA_CLK_RQT | - APMG_CLK_VAL_BSM_CLK_RQT); - udelay(20); - iwl_set_bits_restricted_reg(priv, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); - iwl_release_restricted_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); + return ret; +} - /* Determine HW type */ - rc = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); - if (rc) - return rc; - IWL_DEBUG_INFO("HW Revision ID = 0x%X\n", rev_id); +static void iwl3945_nic_config(struct iwl_priv *priv) +{ + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; + unsigned long flags; + u8 rev_id = 0; - iwl3945_nic_set_pwr_src(priv, 1); spin_lock_irqsave(&priv->lock, flags); + /* Determine HW type */ + pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); + + IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id); + if (rev_id & PCI_CFG_REV_ID_BIT_RTP) - IWL_DEBUG_INFO("RTP type \n"); + IWL_DEBUG_INFO(priv, "RTP type \n"); else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) { - IWL_DEBUG_INFO("ALM-MB type\n"); + IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n"); iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB); + CSR39_HW_IF_CONFIG_REG_BIT_3945_MB); } else { - IWL_DEBUG_INFO("ALM-MM type\n"); + IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n"); iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM); + CSR39_HW_IF_CONFIG_REG_BIT_3945_MM); } - spin_unlock_irqrestore(&priv->lock, flags); - - /* Initialize the EEPROM */ - rc = iwl_eeprom_init(priv); - if (rc) - return rc; - - spin_lock_irqsave(&priv->lock, flags); - if (EEPROM_SKU_CAP_OP_MODE_MRC == priv->eeprom.sku_cap) { - IWL_DEBUG_INFO("SKU OP mode is mrc\n"); + if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) { + IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n"); iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC); + CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC); } else - IWL_DEBUG_INFO("SKU OP mode is basic\n"); + IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n"); - if ((priv->eeprom.board_revision & 0xF0) == 0xD0) { - IWL_DEBUG_INFO("3945ABG revision is 0x%X\n", - priv->eeprom.board_revision); + if ((eeprom->board_revision & 0xF0) == 0xD0) { + IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n", + eeprom->board_revision); iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); + CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); } else { - IWL_DEBUG_INFO("3945ABG revision is 0x%X\n", - priv->eeprom.board_revision); + IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n", + eeprom->board_revision); iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); + CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); } - if (priv->eeprom.almgor_m_version <= 1) { + if (eeprom->almgor_m_version <= 1) { iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); - IWL_DEBUG_INFO("Card M type A version is 0x%X\n", - priv->eeprom.almgor_m_version); + CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); + IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n", + eeprom->almgor_m_version); } else { - IWL_DEBUG_INFO("Card M type B version is 0x%X\n", - priv->eeprom.almgor_m_version); + IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n", + eeprom->almgor_m_version); iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); + CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); } spin_unlock_irqrestore(&priv->lock, flags); - if (priv->eeprom.sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL("SW RF KILL supported in EEPROM.\n"); + if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) + IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n"); + + if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) + IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n"); +} + +int iwl3945_hw_nic_init(struct iwl_priv *priv) +{ + int rc; + unsigned long flags; + struct iwl_rx_queue *rxq = &priv->rxq; + + spin_lock_irqsave(&priv->lock, flags); + priv->cfg->ops->lib->apm_ops.init(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + rc = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); + if (rc) + return rc; - if (priv->eeprom.sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n"); + priv->cfg->ops->lib->apm_ops.config(priv); /* Allocate the RX queue, or reset if it is already allocated */ if (!rxq->bd) { rc = iwl_rx_queue_alloc(priv); if (rc) { - IWL_ERROR("Unable to initialize Rx queue\n"); + IWL_ERR(priv, "Unable to initialize Rx queue\n"); return -ENOMEM; } } else - iwl_rx_queue_reset(priv, rxq); + iwl3945_rx_queue_reset(priv, rxq); - iwl_rx_replenish(priv); + iwl3945_rx_replenish(priv); iwl3945_rx_init(priv, rxq); - spin_lock_irqsave(&priv->lock, flags); /* Look at using this instead: rxq->need_update = 1; iwl_rx_queue_update_write_ptr(priv, rxq); */ - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - iwl_write_restricted(priv, FH_RCSR_WPTR(0), rxq->write & ~7); - iwl_release_restricted_access(priv); - - spin_unlock_irqrestore(&priv->lock, flags); + iwl_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7); rc = iwl3945_txq_ctx_reset(priv); if (rc) @@ -1017,175 +1152,91 @@ int iwl_hw_nic_init(struct iwl_priv *priv) } /** - * iwl_hw_txq_ctx_free - Free TXQ Context + * iwl3945_hw_txq_ctx_free - Free TXQ Context * * Destroy all TX DMA queues and structures */ -void iwl_hw_txq_ctx_free(struct iwl_priv *priv) +void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv) { int txq_id; /* Tx queues */ - for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++) - iwl_tx_queue_free(priv, &priv->txq[txq_id]); + if (priv->txq) + for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; + txq_id++) + if (txq_id == IWL_CMD_QUEUE_NUM) + iwl_cmd_queue_free(priv); + else + iwl_tx_queue_free(priv, txq_id); + + /* free tx queue structure */ + iwl_free_txq_mem(priv); } -void iwl_hw_txq_ctx_stop(struct iwl_priv *priv) +void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv) { - int queue; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - if (iwl_grab_restricted_access(priv)) { - spin_unlock_irqrestore(&priv->lock, flags); - iwl_hw_txq_ctx_free(priv); - return; - } + int txq_id; /* stop SCD */ - iwl_write_restricted_reg(priv, SCD_MODE_REG, 0); + iwl_write_prph(priv, ALM_SCD_MODE_REG, 0); + iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0); /* reset TFD queues */ - for (queue = TFD_QUEUE_MIN; queue < TFD_QUEUE_MAX; queue++) { - iwl_write_restricted(priv, FH_TCSR_CONFIG(queue), 0x0); - iwl_poll_restricted_bit(priv, FH_TSSR_TX_STATUS, - ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(queue), + for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { + iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0); + iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS, + FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id), 1000); } - iwl_release_restricted_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - iwl_hw_txq_ctx_free(priv); -} - -int iwl_hw_nic_stop_master(struct iwl_priv *priv) -{ - int rc = 0; - u32 reg_val; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - - /* set stop master bit */ - iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); - - reg_val = iwl_read32(priv, CSR_GP_CNTRL); - - if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE == - (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) - IWL_DEBUG_INFO("Card in power save, master is already " - "stopped\n"); - else { - rc = iwl_poll_bit(priv, CSR_RESET, - CSR_RESET_REG_FLAG_MASTER_DISABLED, - CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); - if (rc < 0) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - } - - spin_unlock_irqrestore(&priv->lock, flags); - IWL_DEBUG_INFO("stop master\n"); - - return rc; -} - -int iwl_hw_nic_reset(struct iwl_priv *priv) -{ - int rc; - unsigned long flags; - - iwl_hw_nic_stop_master(priv); - - spin_lock_irqsave(&priv->lock, flags); - - iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); - - rc = iwl_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); - - rc = iwl_grab_restricted_access(priv); - if (!rc) { - iwl_write_restricted_reg(priv, APMG_CLK_CTRL_REG, - APMG_CLK_VAL_BSM_CLK_RQT); - - udelay(10); - - iwl_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - - iwl_write_restricted_reg(priv, APMG_RTC_INT_MSK_REG, 0x0); - iwl_write_restricted_reg(priv, APMG_RTC_INT_STT_REG, - 0xFFFFFFFF); - - /* enable DMA */ - iwl_write_restricted_reg(priv, APMG_CLK_EN_REG, - APMG_CLK_VAL_DMA_CLK_RQT | - APMG_CLK_VAL_BSM_CLK_RQT); - udelay(10); - - iwl_set_bits_restricted_reg(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_RESET_REQ); - udelay(5); - iwl_clear_bits_restricted_reg(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_RESET_REQ); - iwl_release_restricted_access(priv); - } - - /* Clear the 'host command active' bit... */ - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - - wake_up_interruptible(&priv->wait_command_queue); - spin_unlock_irqrestore(&priv->lock, flags); - - return rc; + iwl3945_hw_txq_ctx_free(priv); } /** - * iwl_hw_reg_adjust_power_by_temp - return index delta into power gain settings table - */ -static int iwl_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) + * iwl3945_hw_reg_adjust_power_by_temp + * return index delta into power gain settings table +*/ +static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) { return (new_reading - old_reading) * (-11) / 100; } /** - * iwl_hw_reg_temp_out_of_range - Keep temperature in sane range + * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range */ -static inline int iwl_hw_reg_temp_out_of_range(int temperature) +static inline int iwl3945_hw_reg_temp_out_of_range(int temperature) { - return (((temperature < -260) || (temperature > 25)) ? 1 : 0); + return ((temperature < -260) || (temperature > 25)) ? 1 : 0; } -int iwl_hw_get_temperature(struct iwl_priv *priv) +int iwl3945_hw_get_temperature(struct iwl_priv *priv) { return iwl_read32(priv, CSR_UCODE_DRV_GP2); } /** - * iwl_hw_reg_txpower_get_temperature - get current temperature by reading from NIC - */ -static int iwl_hw_reg_txpower_get_temperature(struct iwl_priv *priv) + * iwl3945_hw_reg_txpower_get_temperature + * get the current temperature by reading from NIC +*/ +static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv) { + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; int temperature; - temperature = iwl_hw_get_temperature(priv); + temperature = iwl3945_hw_get_temperature(priv); /* driver's okay range is -260 to +25. * human readable okay range is 0 to +285 */ - IWL_DEBUG_INFO("Temperature: %d\n", temperature + IWL_TEMP_CONVERT); + IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT); /* handle insane temp reading */ - if (iwl_hw_reg_temp_out_of_range(temperature)) { - IWL_ERROR("Error bad temperature value %d\n", temperature); + if (iwl3945_hw_reg_temp_out_of_range(temperature)) { + IWL_ERR(priv, "Error bad temperature value %d\n", temperature); /* if really really hot(?), * substitute the 3rd band/group's temp measured at factory */ if (priv->last_temperature > 100) - temperature = priv->eeprom.groups[2].temperature; + temperature = eeprom->groups[2].temperature; else /* else use most recent "sane" value from driver */ temperature = priv->last_temperature; } @@ -1208,25 +1259,25 @@ static int is_temp_calib_needed(struct iwl_priv *priv) { int temp_diff; - priv->temperature = iwl_hw_reg_txpower_get_temperature(priv); + priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv); temp_diff = priv->temperature - priv->last_temperature; /* get absolute value */ if (temp_diff < 0) { - IWL_DEBUG_POWER("Getting cooler, delta %d,\n", temp_diff); + IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff); temp_diff = -temp_diff; } else if (temp_diff == 0) - IWL_DEBUG_POWER("Same temp,\n"); + IWL_DEBUG_POWER(priv, "Same temp,\n"); else - IWL_DEBUG_POWER("Getting warmer, delta %d,\n", temp_diff); + IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff); /* if we don't need calibration, *don't* update last_temperature */ if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) { - IWL_DEBUG_POWER("Timed thermal calib not needed\n"); + IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n"); return 0; } - IWL_DEBUG_POWER("Timed thermal calib needed\n"); + IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n"); /* assume that caller will actually do calib ... * update the "last temperature" value */ @@ -1240,7 +1291,7 @@ static int is_temp_calib_needed(struct iwl_priv *priv) /* radio and DSP power table, each step is 1/2 dB. * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */ -static struct iwl_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = { +static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = { { {251, 127}, /* 2.4 GHz, highest power */ {251, 127}, @@ -1401,7 +1452,7 @@ static struct iwl_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = { {3, 120} } /* 5.x GHz, lowest power */ }; -static inline u8 iwl_hw_reg_fix_power_index(int index) +static inline u8 iwl3945_hw_reg_fix_power_index(int index) { if (index < 0) return 0; @@ -1414,17 +1465,17 @@ static inline u8 iwl_hw_reg_fix_power_index(int index) #define REG_RECALIB_PERIOD (60) /** - * iwl_hw_reg_set_scan_power - Set Tx power for scan probe requests + * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests * * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK) * or 6 Mbit (OFDM) rates. */ -static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, +static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, s32 rate_index, const s8 *clip_pwrs, struct iwl_channel_info *ch_info, int band_index) { - struct iwl_scan_power_info *scan_power_info; + struct iwl3945_scan_power_info *scan_power_info; s8 power; u8 power_index; @@ -1433,12 +1484,12 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, /* use this channel group's 6Mbit clipping/saturation pwr, * but cap at regulatory scan power restriction (set during init * based on eeprom channel data) for this channel. */ - power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX]); + power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]); /* further limit to user's max power preference. * FIXME: Other spectrum management power limitations do not * seem to apply?? */ - power = min(power, priv->user_txpower_limit); + power = min(power, priv->tx_power_user_lmt); scan_power_info->requested_power = power; /* find difference between new scan *power* and current "normal" @@ -1448,7 +1499,7 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, * *index*. */ power_index = ch_info->power_info[rate_index].power_table_index - (power - ch_info->power_info - [IWL_RATE_6M_INDEX].requested_power) * 2; + [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2; /* store reference index that we use when adjusting *all* scan * powers. So we can accommodate user (all channel) or spectrum @@ -1460,7 +1511,7 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, * of the table. */ /* don't exceed table bounds for "real" setting */ - power_index = iwl_hw_reg_fix_power_index(power_index); + power_index = iwl3945_hw_reg_fix_power_index(power_index); scan_power_info->power_table_index = power_index; scan_power_info->tpc.tx_gain = @@ -1470,56 +1521,73 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index, } /** - * iwl_hw_reg_send_txpower - fill in Tx Power command with gain settings + * iwl3945_send_tx_power - fill in Tx Power command with gain settings * * Configures power settings for all rates for the current channel, * using values from channel info struct, and send to NIC */ -int iwl_hw_reg_send_txpower(struct iwl_priv *priv) +static int iwl3945_send_tx_power(struct iwl_priv *priv) { - int rate_idx; + int rate_idx, i; const struct iwl_channel_info *ch_info = NULL; - struct iwl_txpowertable_cmd txpower = { + struct iwl3945_txpowertable_cmd txpower = { .channel = priv->active_rxon.channel, }; - txpower.band = (priv->phymode == MODE_IEEE80211A) ? 0 : 1; + txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1; ch_info = iwl_get_channel_info(priv, - priv->phymode, + priv->band, le16_to_cpu(priv->active_rxon.channel)); if (!ch_info) { - IWL_ERROR - ("Failed to get channel info for channel %d [%d]\n", - le16_to_cpu(priv->active_rxon.channel), priv->phymode); + IWL_ERR(priv, + "Failed to get channel info for channel %d [%d]\n", + le16_to_cpu(priv->active_rxon.channel), priv->band); return -EINVAL; } if (!is_channel_valid(ch_info)) { - IWL_DEBUG_POWER("Not calling TX_PWR_TABLE_CMD on " + IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on " "non-Tx channel.\n"); return 0; } /* fill cmd with power settings for all rates for current channel */ - for (rate_idx = 0; rate_idx < IWL_RATE_COUNT; rate_idx++) { - txpower.power[rate_idx].tpc = ch_info->power_info[rate_idx].tpc; - txpower.power[rate_idx].rate = iwl_rates[rate_idx].plcp; + /* Fill OFDM rate */ + for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0; + rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) { - IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", + txpower.power[i].tpc = ch_info->power_info[i].tpc; + txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; + + IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n", le16_to_cpu(txpower.channel), txpower.band, - txpower.power[rate_idx].tpc.tx_gain, - txpower.power[rate_idx].tpc.dsp_atten, - txpower.power[rate_idx].rate); + txpower.power[i].tpc.tx_gain, + txpower.power[i].tpc.dsp_atten, + txpower.power[i].rate); + } + /* Fill CCK rates */ + for (rate_idx = IWL_FIRST_CCK_RATE; + rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) { + txpower.power[i].tpc = ch_info->power_info[i].tpc; + txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; + + IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n", + le16_to_cpu(txpower.channel), + txpower.band, + txpower.power[i].tpc.tx_gain, + txpower.power[i].tpc.dsp_atten, + txpower.power[i].rate); } return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, - sizeof(struct iwl_txpowertable_cmd), &txpower); + sizeof(struct iwl3945_txpowertable_cmd), + &txpower); } /** - * iwl_hw_reg_set_new_power - Configures power tables at new levels + * iwl3945_hw_reg_set_new_power - Configures power tables at new levels * @ch_info: Channel to update. Uses power_info.requested_power. * * Replace requested_power and base_power_index ch_info fields for @@ -1534,23 +1602,23 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv) * properly fill out the scan powers, and actual h/w gain settings, * and send changes to NIC */ -static int iwl_hw_reg_set_new_power(struct iwl_priv *priv, +static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv, struct iwl_channel_info *ch_info) { - struct iwl_channel_power_info *power_info; + struct iwl3945_channel_power_info *power_info; int power_changed = 0; int i; const s8 *clip_pwrs; int power; /* Get this chnlgrp's rate-to-max/clip-powers table */ - clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; + clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers; /* Get this channel's rate-to-current-power settings table */ power_info = ch_info->power_info; /* update OFDM Txpower settings */ - for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE; + for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++, ++power_info) { int delta_idx; @@ -1574,14 +1642,14 @@ static int iwl_hw_reg_set_new_power(struct iwl_priv *priv, * ... all CCK power settings for a given channel are the *same*. */ if (power_changed) { power = - ch_info->power_info[IWL_RATE_12M_INDEX]. + ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF; - /* do all CCK rates' iwl_channel_power_info structures */ - for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++) { + /* do all CCK rates' iwl3945_channel_power_info structures */ + for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) { power_info->requested_power = power; power_info->base_power_index = - ch_info->power_info[IWL_RATE_12M_INDEX]. + ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF; ++power_info; } @@ -1591,13 +1659,13 @@ static int iwl_hw_reg_set_new_power(struct iwl_priv *priv, } /** - * iwl_hw_reg_get_ch_txpower_limit - returns new power limit for channel + * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel * * NOTE: Returned power limit may be less (but not more) than requested, * based strictly on regulatory (eeprom and spectrum mgt) limitations * (no consideration for h/w clipping limitations). */ -static int iwl_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info) +static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info) { s8 max_power; @@ -1616,7 +1684,7 @@ static int iwl_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info) } /** - * iwl_hw_reg_comp_txpower_temp - Compensate for temperature + * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature * * Compensate txpower settings of *all* channels for temperature. * This only accounts for the difference between current temperature @@ -1625,9 +1693,10 @@ static int iwl_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info) * * If RxOn is "associated", this sends the new Txpower to NIC! */ -static int iwl_hw_reg_comp_txpower_temp(struct iwl_priv *priv) +static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv) { struct iwl_channel_info *ch_info = NULL; + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; int delta_index; const s8 *clip_pwrs; /* array of h/w max power levels for each rate */ u8 a_band; @@ -1643,12 +1712,12 @@ static int iwl_hw_reg_comp_txpower_temp(struct iwl_priv *priv) a_band = is_channel_a_band(ch_info); /* Get this chnlgrp's factory calibration temperature */ - ref_temp = (s16)priv->eeprom.groups[ch_info->group_index]. + ref_temp = (s16)eeprom->groups[ch_info->group_index]. temperature; - /* get power index adjustment based on curr and factory + /* get power index adjustment based on current and factory * temps */ - delta_index = iwl_hw_reg_adjust_power_by_temp(temperature, + delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, ref_temp); /* set tx power value for all rates, OFDM and CCK */ @@ -1661,7 +1730,7 @@ static int iwl_hw_reg_comp_txpower_temp(struct iwl_priv *priv) power_idx += delta_index; /* stay within table range */ - power_idx = iwl_hw_reg_fix_power_index(power_idx); + power_idx = iwl3945_hw_reg_fix_power_index(power_idx); ch_info->power_info[rate_index]. power_table_index = (u8) power_idx; ch_info->power_info[rate_index].tpc = @@ -1669,38 +1738,38 @@ static int iwl_hw_reg_comp_txpower_temp(struct iwl_priv *priv) } /* Get this chnlgrp's rate-to-max/clip-powers table */ - clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; + clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers; /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ for (scan_tbl_index = 0; scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { s32 actual_index = (scan_tbl_index == 0) ? - IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX; - iwl_hw_reg_set_scan_power(priv, scan_tbl_index, + IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; + iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, actual_index, clip_pwrs, ch_info, a_band); } } /* send Txpower command for current channel to ucode */ - return iwl_hw_reg_send_txpower(priv); + return priv->cfg->ops->lib->send_tx_power(priv); } -int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) +int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) { struct iwl_channel_info *ch_info; s8 max_power; u8 a_band; u8 i; - if (priv->user_txpower_limit == power) { - IWL_DEBUG_POWER("Requested Tx power same as current " + if (priv->tx_power_user_lmt == power) { + IWL_DEBUG_POWER(priv, "Requested Tx power same as current " "limit: %ddBm.\n", power); return 0; } - IWL_DEBUG_POWER("Setting upper limit clamp to %ddBm.\n", power); - priv->user_txpower_limit = power; + IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power); + priv->tx_power_user_lmt = power; /* set up new Tx powers for each and every channel, 2.4 and 5.x */ @@ -1710,27 +1779,207 @@ int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) /* find minimum power of all user and regulatory constraints * (does not consider h/w clipping limitations) */ - max_power = iwl_hw_reg_get_ch_txpower_limit(ch_info); + max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info); max_power = min(power, max_power); if (max_power != ch_info->curr_txpow) { ch_info->curr_txpow = max_power; /* this considers the h/w clipping limitations */ - iwl_hw_reg_set_new_power(priv, ch_info); + iwl3945_hw_reg_set_new_power(priv, ch_info); } } /* update txpower settings for all channels, * send to NIC if associated. */ is_temp_calib_needed(priv); - iwl_hw_reg_comp_txpower_temp(priv); + iwl3945_hw_reg_comp_txpower_temp(priv); return 0; } -/* will add 3945 channel switch cmd handling later */ -int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel) +static int iwl3945_send_rxon_assoc(struct iwl_priv *priv) { + int rc = 0; + struct iwl_rx_packet *pkt; + struct iwl3945_rxon_assoc_cmd rxon_assoc; + struct iwl_host_cmd cmd = { + .id = REPLY_RXON_ASSOC, + .len = sizeof(rxon_assoc), + .flags = CMD_WANT_SKB, + .data = &rxon_assoc, + }; + const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon; + const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon; + + if ((rxon1->flags == rxon2->flags) && + (rxon1->filter_flags == rxon2->filter_flags) && + (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && + (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { + IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); + return 0; + } + + rxon_assoc.flags = priv->staging_rxon.flags; + rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; + rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; + rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; + rxon_assoc.reserved = 0; + + rc = iwl_send_cmd_sync(priv, &cmd); + if (rc) + return rc; + + pkt = (struct iwl_rx_packet *)cmd.reply_page; + if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { + IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n"); + rc = -EIO; + } + + iwl_free_pages(priv, cmd.reply_page); + + return rc; +} + +/** + * iwl3945_commit_rxon - commit staging_rxon to hardware + * + * The RXON command in staging_rxon is committed to the hardware and + * the active_rxon structure is updated with the new data. This + * function correctly transitions out of the RXON_ASSOC_MSK state if + * a HW tune is required based on the RXON structure changes. + */ +static int iwl3945_commit_rxon(struct iwl_priv *priv) +{ + /* cast away the const for active_rxon in this function */ + struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; + struct iwl3945_rxon_cmd *staging_rxon = (void *)&priv->staging_rxon; + int rc = 0; + bool new_assoc = + !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); + + if (!iwl_is_alive(priv)) + return -1; + + /* always get timestamp with Rx frame */ + staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK; + + /* select antenna */ + staging_rxon->flags &= + ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); + staging_rxon->flags |= iwl3945_get_antenna_flags(priv); + + rc = iwl_check_rxon_cmd(priv); + if (rc) { + IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); + return -EINVAL; + } + + /* If we don't need to send a full RXON, we can use + * iwl3945_rxon_assoc_cmd which is used to reconfigure filter + * and other flags for the current radio configuration. */ + if (!iwl_full_rxon_required(priv)) { + rc = iwl_send_rxon_assoc(priv); + if (rc) { + IWL_ERR(priv, "Error setting RXON_ASSOC " + "configuration (%d).\n", rc); + return rc; + } + + memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); + + return 0; + } + + /* If we are currently associated and the new config requires + * an RXON_ASSOC and the new config wants the associated mask enabled, + * we must clear the associated from the active configuration + * before we apply the new config */ + if (iwl_is_associated(priv) && new_assoc) { + IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); + active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; + + /* + * reserved4 and 5 could have been filled by the iwlcore code. + * Let's clear them before pushing to the 3945. + */ + active_rxon->reserved4 = 0; + active_rxon->reserved5 = 0; + rc = iwl_send_cmd_pdu(priv, REPLY_RXON, + sizeof(struct iwl3945_rxon_cmd), + &priv->active_rxon); + + /* If the mask clearing failed then we set + * active_rxon back to what it was previously */ + if (rc) { + active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; + IWL_ERR(priv, "Error clearing ASSOC_MSK on current " + "configuration (%d).\n", rc); + return rc; + } + } + + IWL_DEBUG_INFO(priv, "Sending RXON\n" + "* with%s RXON_FILTER_ASSOC_MSK\n" + "* channel = %d\n" + "* bssid = %pM\n", + (new_assoc ? "" : "out"), + le16_to_cpu(staging_rxon->channel), + staging_rxon->bssid_addr); + + /* + * reserved4 and 5 could have been filled by the iwlcore code. + * Let's clear them before pushing to the 3945. + */ + staging_rxon->reserved4 = 0; + staging_rxon->reserved5 = 0; + + iwl_set_rxon_hwcrypto(priv, !iwl3945_mod_params.sw_crypto); + + /* Apply the new configuration */ + rc = iwl_send_cmd_pdu(priv, REPLY_RXON, + sizeof(struct iwl3945_rxon_cmd), + staging_rxon); + if (rc) { + IWL_ERR(priv, "Error setting new configuration (%d).\n", rc); + return rc; + } + + memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); + + iwl_clear_stations_table(priv); + + /* If we issue a new RXON command which required a tune then we must + * send a new TXPOWER command or we won't be able to Tx any frames */ + rc = priv->cfg->ops->lib->send_tx_power(priv); + if (rc) { + IWL_ERR(priv, "Error setting Tx power (%d).\n", rc); + return rc; + } + + /* Add the broadcast address so we can send broadcast frames */ + if (iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL) == + IWL_INVALID_STATION) { + IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n"); + return -EIO; + } + + /* If we have set the ASSOC_MSK and we are in BSS mode then + * add the IWL_AP_ID to the station rate table */ + if (iwl_is_associated(priv) && + (priv->iw_mode == NL80211_IFTYPE_STATION)) + if (iwl_add_station(priv, priv->active_rxon.bssid_addr, + true, CMD_SYNC, NULL) == IWL_INVALID_STATION) { + IWL_ERR(priv, "Error adding AP address for transmit\n"); + return -EIO; + } + + /* Init the hardware's rate fallback order based on the band */ + rc = iwl3945_init_hw_rate_table(priv); + if (rc) { + IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc); + return -EIO; + } + return 0; } @@ -1747,21 +1996,21 @@ int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel) void iwl3945_reg_txpower_periodic(struct iwl_priv *priv) { /* This will kick in the "brute force" - * iwl_hw_reg_comp_txpower_temp() below */ + * iwl3945_hw_reg_comp_txpower_temp() below */ if (!is_temp_calib_needed(priv)) goto reschedule; /* Set up a new set of temp-adjusted TxPowers, send to NIC. * This is based *only* on current temperature, * ignoring any previous power measurements */ - iwl_hw_reg_comp_txpower_temp(priv); + iwl3945_hw_reg_comp_txpower_temp(priv); reschedule: queue_delayed_work(priv->workqueue, &priv->thermal_periodic, REG_RECALIB_PERIOD * HZ); } -void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) +static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, thermal_periodic.work); @@ -1775,7 +2024,7 @@ void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) } /** - * iwl_hw_reg_get_ch_grp_index - find the channel-group index (0-4) + * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4) * for the channel. * * This function is used when initializing channel-info structs. @@ -1785,10 +2034,11 @@ void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) * on A-band, EEPROM's "group frequency" entries represent the top * channel in each group 1-4. Group 5 All B/G channels are in group 0. */ -static u16 iwl_hw_reg_get_ch_grp_index(struct iwl_priv *priv, +static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv, const struct iwl_channel_info *ch_info) { - struct iwl_eeprom_txpower_group *ch_grp = &priv->eeprom.groups[0]; + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; + struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0]; u8 group; u16 group_index = 0; /* based on factory calib frequencies */ u8 grp_channel; @@ -1808,31 +2058,32 @@ static u16 iwl_hw_reg_get_ch_grp_index(struct iwl_priv *priv, } else group_index = 0; /* 2.4 GHz, group 0 */ - IWL_DEBUG_POWER("Chnl %d mapped to grp %d\n", ch_info->channel, + IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel, group_index); return group_index; } /** - * iwl_hw_reg_get_matched_power_index - Interpolate to get nominal index + * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index * * Interpolate to get nominal (i.e. at factory calibration temperature) index * into radio/DSP gain settings table for requested power. */ -static int iwl_hw_reg_get_matched_power_index(struct iwl_priv *priv, +static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv, s8 requested_power, s32 setting_index, s32 *new_index) { - const struct iwl_eeprom_txpower_group *chnl_grp = NULL; + const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL; + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; s32 index0, index1; s32 power = 2 * requested_power; s32 i; - const struct iwl_eeprom_txpower_sample *samples; + const struct iwl3945_eeprom_txpower_sample *samples; s32 gains0, gains1; s32 res; s32 denominator; - chnl_grp = &priv->eeprom.groups[setting_index]; + chnl_grp = &eeprom->groups[setting_index]; samples = chnl_grp->samples; for (i = 0; i < 5; i++) { if (power == samples[i].power) { @@ -1867,22 +2118,23 @@ static int iwl_hw_reg_get_matched_power_index(struct iwl_priv *priv, return 0; } -static void iwl_hw_reg_init_channel_groups(struct iwl_priv *priv) +static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv) { u32 i; s32 rate_index; - const struct iwl_eeprom_txpower_group *group; + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; + const struct iwl3945_eeprom_txpower_group *group; - IWL_DEBUG_POWER("Initializing factory calib info from EEPROM\n"); + IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n"); for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) { s8 *clip_pwrs; /* table of power levels for each rate */ s8 satur_pwr; /* saturation power for each chnl group */ - group = &priv->eeprom.groups[i]; + group = &eeprom->groups[i]; /* sanity check on factory saturation power value */ if (group->saturation_power < 40) { - IWL_WARNING("Error: saturation power is %d, " + IWL_WARN(priv, "Error: saturation power is %d, " "less than minimum expected 40\n", group->saturation_power); return; @@ -1897,7 +2149,7 @@ static void iwl_hw_reg_init_channel_groups(struct iwl_priv *priv) * power peaks, without too much distortion (clipping). */ /* we'll fill in this array with h/w max power levels */ - clip_pwrs = (s8 *) priv->clip_groups[i].clip_powers; + clip_pwrs = (s8 *) priv->clip39_groups[i].clip_powers; /* divide factory saturation power by 2 to find -3dB level */ satur_pwr = (s8) (group->saturation_power >> 1); @@ -1906,19 +2158,19 @@ static void iwl_hw_reg_init_channel_groups(struct iwl_priv *priv) for (rate_index = 0; rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) { switch (rate_index) { - case IWL_RATE_36M_INDEX: + case IWL_RATE_36M_INDEX_TABLE: if (i == 0) /* B/G */ *clip_pwrs = satur_pwr; else /* A */ *clip_pwrs = satur_pwr - 5; break; - case IWL_RATE_48M_INDEX: + case IWL_RATE_48M_INDEX_TABLE: if (i == 0) *clip_pwrs = satur_pwr - 7; else *clip_pwrs = satur_pwr - 10; break; - case IWL_RATE_54M_INDEX: + case IWL_RATE_54M_INDEX_TABLE: if (i == 0) *clip_pwrs = satur_pwr - 9; else @@ -1950,7 +2202,8 @@ static void iwl_hw_reg_init_channel_groups(struct iwl_priv *priv) int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) { struct iwl_channel_info *ch_info = NULL; - struct iwl_channel_power_info *pwr_info; + struct iwl3945_channel_power_info *pwr_info; + struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; int delta_index; u8 rate_index; u8 scan_tbl_index; @@ -1963,10 +2216,10 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) /* save temperature reference, * so we can determine next time to calibrate */ - temperature = iwl_hw_reg_txpower_get_temperature(priv); + temperature = iwl3945_hw_reg_txpower_get_temperature(priv); priv->last_temperature = temperature; - iwl_hw_reg_init_channel_groups(priv); + iwl3945_hw_reg_init_channel_groups(priv); /* initialize Tx power info for each and every channel, 2.4 and 5.x */ for (i = 0, ch_info = priv->channel_info; i < priv->channel_count; @@ -1977,25 +2230,25 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) /* find this channel's channel group (*not* "band") index */ ch_info->group_index = - iwl_hw_reg_get_ch_grp_index(priv, ch_info); + iwl3945_hw_reg_get_ch_grp_index(priv, ch_info); /* Get this chnlgrp's rate->max/clip-powers table */ - clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; + clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers; /* calculate power index *adjustment* value according to * diff between current temperature and factory temperature */ - delta_index = iwl_hw_reg_adjust_power_by_temp(temperature, - priv->eeprom.groups[ch_info->group_index]. + delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, + eeprom->groups[ch_info->group_index]. temperature); - IWL_DEBUG_POWER("Delta index for channel %d: %d [%d]\n", + IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n", ch_info->channel, delta_index, temperature + IWL_TEMP_CONVERT); /* set tx power value for all OFDM rates */ for (rate_index = 0; rate_index < IWL_OFDM_RATES; rate_index++) { - s32 power_idx; + s32 uninitialized_var(power_idx); int rc; /* use channel group's clip-power table, @@ -2007,11 +2260,11 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) /* get base (i.e. at factory-measured temperature) * power table index for this rate's power */ - rc = iwl_hw_reg_get_matched_power_index(priv, pwr, + rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr, ch_info->group_index, &power_idx); if (rc) { - IWL_ERROR("Invalid power index\n"); + IWL_ERR(priv, "Invalid power index\n"); return rc; } pwr_info->base_power_index = (u8) power_idx; @@ -2020,9 +2273,9 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) power_idx += delta_index; /* stay within range of gain table */ - power_idx = iwl_hw_reg_fix_power_index(power_idx); + power_idx = iwl3945_hw_reg_fix_power_index(power_idx); - /* fill 1 OFDM rate's iwl_channel_power_info struct */ + /* fill 1 OFDM rate's iwl3945_channel_power_info struct */ pwr_info->requested_power = pwr; pwr_info->power_table_index = (u8) power_idx; pwr_info->tpc.tx_gain = @@ -2032,7 +2285,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) } /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/ - pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX]; + pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]; power = pwr_info->requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF; pwr_index = pwr_info->power_table_index + @@ -2041,16 +2294,16 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) IWL_CCK_FROM_OFDM_INDEX_DIFF; /* stay within table range */ - pwr_index = iwl_hw_reg_fix_power_index(pwr_index); + pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index); gain = power_gain_table[a_band][pwr_index].tx_gain; dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten; - /* fill each CCK rate's iwl_channel_power_info structure + /* fill each CCK rate's iwl3945_channel_power_info structure * NOTE: All CCK-rate Txpwrs are the same for a given chnl! * NOTE: CCK rates start at end of OFDM rates! */ - for (rate_index = IWL_OFDM_RATES; - rate_index < IWL_RATE_COUNT; rate_index++) { - pwr_info = &ch_info->power_info[rate_index]; + for (rate_index = 0; + rate_index < IWL_CCK_RATES; rate_index++) { + pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES]; pwr_info->requested_power = power; pwr_info->power_table_index = pwr_index; pwr_info->base_power_index = base_pwr_index; @@ -2062,8 +2315,8 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) for (scan_tbl_index = 0; scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { s32 actual_index = (scan_tbl_index == 0) ? - IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX; - iwl_hw_reg_set_scan_power(priv, scan_tbl_index, + IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; + iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, actual_index, clip_pwrs, ch_info, a_band); } } @@ -2071,117 +2324,140 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv) return 0; } -int iwl_hw_rxq_stop(struct iwl_priv *priv) +int iwl3945_hw_rxq_stop(struct iwl_priv *priv) { int rc; - unsigned long flags; - spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - - iwl_write_restricted(priv, FH_RCSR_CONFIG(0), 0); - rc = iwl_poll_restricted_bit(priv, FH_RSSR_STATUS, (1 << 24), 1000); + iwl_write_direct32(priv, FH39_RCSR_CONFIG(0), 0); + rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS, + FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); if (rc < 0) - IWL_ERROR("Can't stop Rx DMA.\n"); - - iwl_release_restricted_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); + IWL_ERR(priv, "Can't stop Rx DMA.\n"); return 0; } -int iwl_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) +int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - int rc; - unsigned long flags; int txq_id = txq->q.id; - struct iwl_shared *shared_data = priv->hw_setting.shared_virt; + struct iwl3945_shared *shared_data = priv->shared_virt; shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr); - spin_lock_irqsave(&priv->lock, flags); - rc = iwl_grab_restricted_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - iwl_write_restricted(priv, FH_CBCC_CTRL(txq_id), 0); - iwl_write_restricted(priv, FH_CBCC_BASE(txq_id), 0); + iwl_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0); + iwl_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0); - iwl_write_restricted(priv, FH_TCSR_CONFIG(txq_id), - ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | - ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | - ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | - ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | - ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); - iwl_release_restricted_access(priv); + iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), + FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | + FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | + FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | + FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | + FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); /* fake read to flush all prev. writes */ - iwl_read32(priv, FH_TSSR_CBB_BASE); - spin_unlock_irqrestore(&priv->lock, flags); + iwl_read32(priv, FH39_TSSR_CBB_BASE); return 0; } -int iwl_hw_get_rx_read(struct iwl_priv *priv) +/* + * HCMD utils + */ +static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len) { - struct iwl_shared *shared_data = priv->hw_setting.shared_virt; + switch (cmd_id) { + case REPLY_RXON: + return sizeof(struct iwl3945_rxon_cmd); + case POWER_TABLE_CMD: + return sizeof(struct iwl3945_powertable_cmd); + default: + return len; + } +} + - return le32_to_cpu(shared_data->rx_read_ptr[0]); +static u16 iwl3945_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) +{ + struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data; + addsta->mode = cmd->mode; + memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); + memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo)); + addsta->station_flags = cmd->station_flags; + addsta->station_flags_msk = cmd->station_flags_msk; + addsta->tid_disable_tx = cpu_to_le16(0); + addsta->rate_n_flags = cmd->rate_n_flags; + addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; + addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; + addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; + + return (u16)sizeof(struct iwl3945_addsta_cmd); } + /** * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table */ int iwl3945_init_hw_rate_table(struct iwl_priv *priv) { - int rc, i; - struct iwl_rate_scaling_cmd rate_cmd = { + int rc, i, index, prev_index; + struct iwl3945_rate_scaling_cmd rate_cmd = { .reserved = {0, 0, 0}, }; - struct iwl_rate_scaling_info *table = rate_cmd.table; + struct iwl3945_rate_scaling_info *table = rate_cmd.table; - for (i = 0; i < ARRAY_SIZE(iwl_rates); i++) { - table[i].rate_n_flags = - iwl_hw_set_rate_n_flags(iwl_rates[i].plcp, 0); - table[i].try_cnt = priv->retry_rate; - table[i].next_rate_index = iwl_get_prev_ieee_rate(i); + for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) { + index = iwl3945_rates[i].table_rs_index; + + table[index].rate_n_flags = + iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0); + table[index].try_cnt = priv->retry_rate; + prev_index = iwl3945_get_prev_ieee_rate(i); + table[index].next_rate_index = + iwl3945_rates[prev_index].table_rs_index; } - switch (priv->phymode) { - case MODE_IEEE80211A: - IWL_DEBUG_RATE("Select A mode rate scale\n"); + switch (priv->band) { + case IEEE80211_BAND_5GHZ: + IWL_DEBUG_RATE(priv, "Select A mode rate scale\n"); /* If one of the following CCK rates is used, * have it fall back to the 6M OFDM rate */ - for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++) - table[i].next_rate_index = IWL_FIRST_OFDM_RATE; + for (i = IWL_RATE_1M_INDEX_TABLE; + i <= IWL_RATE_11M_INDEX_TABLE; i++) + table[i].next_rate_index = + iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; /* Don't fall back to CCK rates */ - table[IWL_RATE_12M_INDEX].next_rate_index = IWL_RATE_9M_INDEX; + table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = + IWL_RATE_9M_INDEX_TABLE; /* Don't drop out of OFDM rates */ - table[IWL_FIRST_OFDM_RATE].next_rate_index = - IWL_FIRST_OFDM_RATE; + table[IWL_RATE_6M_INDEX_TABLE].next_rate_index = + iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; break; - case MODE_IEEE80211B: - IWL_DEBUG_RATE("Select B mode rate scale\n"); + case IEEE80211_BAND_2GHZ: + IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n"); /* If an OFDM rate is used, have it fall back to the * 1M CCK rates */ - for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE; i++) - table[i].next_rate_index = IWL_FIRST_CCK_RATE; - /* CCK shouldn't fall back to OFDM... */ - table[IWL_RATE_11M_INDEX].next_rate_index = IWL_RATE_5M_INDEX; + if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) && + iwl_is_associated(priv)) { + + index = IWL_FIRST_CCK_RATE; + for (i = IWL_RATE_6M_INDEX_TABLE; + i <= IWL_RATE_54M_INDEX_TABLE; i++) + table[i].next_rate_index = + iwl3945_rates[index].table_rs_index; + + index = IWL_RATE_11M_INDEX_TABLE; + /* CCK shouldn't fall back to OFDM... */ + table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE; + } break; default: - IWL_DEBUG_RATE("Select G mode rate scale\n"); + WARN_ON(1); break; } @@ -2198,48 +2474,53 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv) &rate_cmd); } -int iwl_hw_set_hw_setting(struct iwl_priv *priv) +/* Called when initializing driver */ +int iwl3945_hw_set_hw_params(struct iwl_priv *priv) { - memset((void *)&priv->hw_setting, 0, - sizeof(struct iwl_driver_hw_info)); + memset((void *)&priv->hw_params, 0, + sizeof(struct iwl_hw_params)); - priv->hw_setting.shared_virt = + priv->shared_virt = pci_alloc_consistent(priv->pci_dev, - sizeof(struct iwl_shared), - &priv->hw_setting.shared_phys); + sizeof(struct iwl3945_shared), + &priv->shared_phys); - if (!priv->hw_setting.shared_virt) { - IWL_ERROR("failed to allocate pci memory\n"); + if (!priv->shared_virt) { + IWL_ERR(priv, "failed to allocate pci memory\n"); mutex_unlock(&priv->mutex); return -ENOMEM; } - priv->hw_setting.ac_queue_count = AC_NUM; - priv->hw_setting.rx_buffer_size = IWL_RX_BUF_SIZE; - priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd); - priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE; - priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG; - priv->hw_setting.cck_flag = 0; - priv->hw_setting.max_stations = IWL3945_STATION_COUNT; - priv->hw_setting.bcast_sta_id = IWL3945_BROADCAST_ID; + /* Assign number of Usable TX queues */ + priv->hw_params.max_txq_num = priv->cfg->num_of_queues; + + priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd); + priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_3K); + priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; + priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; + priv->hw_params.max_stations = IWL3945_STATION_COUNT; + priv->hw_params.bcast_sta_id = IWL3945_BROADCAST_ID; + + priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR; + priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL; + return 0; } -unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl_frame *frame, u8 rate) +unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv, + struct iwl3945_frame *frame, u8 rate) { - struct iwl_tx_beacon_cmd *tx_beacon_cmd; + struct iwl3945_tx_beacon_cmd *tx_beacon_cmd; unsigned int frame_size; - tx_beacon_cmd = (struct iwl_tx_beacon_cmd *)&frame->u; + tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u; memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); - tx_beacon_cmd->tx.sta_id = IWL3945_BROADCAST_ID; + tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - frame_size = iwl_fill_beacon_frame(priv, + frame_size = iwl3945_fill_beacon_frame(priv, tx_beacon_cmd->frame, - BROADCAST_ADDR, sizeof(frame->u) - sizeof(*tx_beacon_cmd)); BUG_ON(frame_size > MAX_MPDU_SIZE); @@ -2249,52 +2530,337 @@ unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK); - /* supp_rates[0] == OFDM */ - tx_beacon_cmd->tx.supp_rates[0] = IWL_OFDM_BASIC_RATES_MASK; - - /* supp_rates[1] == CCK - * - * NOTE: IWL_*_RATES_MASK are not in the order that supp_rates - * expects so we have to shift them around. - * - * supp_rates expects: - * CCK rates are bit0..3 - * - * However IWL_*_RATES_MASK has: - * CCK rates are bit8..11 - */ + /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/ + tx_beacon_cmd->tx.supp_rates[0] = + (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; + tx_beacon_cmd->tx.supp_rates[1] = - (IWL_CCK_BASIC_RATES_MASK >> 8) & 0xF; + (IWL_CCK_BASIC_RATES_MASK & 0xF); - return (sizeof(struct iwl_tx_beacon_cmd) + frame_size); + return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size; } -void iwl_hw_rx_handler_setup(struct iwl_priv *priv) +void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv) { + priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx; priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx; } -void iwl_hw_setup_deferred_work(struct iwl_priv *priv) +void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv) { INIT_DELAYED_WORK(&priv->thermal_periodic, iwl3945_bg_reg_txpower_periodic); } -void iwl_hw_cancel_deferred_work(struct iwl_priv *priv) +void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv) { cancel_delayed_work(&priv->thermal_periodic); } -struct pci_device_id iwl_hw_card_ids[] = { - {0x8086, 0x4222, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {0x8086, 0x4227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {0} -}; +/* check contents of special bootstrap uCode SRAM */ +static int iwl3945_verify_bsm(struct iwl_priv *priv) + { + __le32 *image = priv->ucode_boot.v_addr; + u32 len = priv->ucode_boot.len; + u32 reg; + u32 val; + + IWL_DEBUG_INFO(priv, "Begin verify bsm\n"); + + /* verify BSM SRAM contents */ + val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG); + for (reg = BSM_SRAM_LOWER_BOUND; + reg < BSM_SRAM_LOWER_BOUND + len; + reg += sizeof(u32), image++) { + val = iwl_read_prph(priv, reg); + if (val != le32_to_cpu(*image)) { + IWL_ERR(priv, "BSM uCode verification failed at " + "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", + BSM_SRAM_LOWER_BOUND, + reg - BSM_SRAM_LOWER_BOUND, len, + val, le32_to_cpu(*image)); + return -EIO; + } + } + + IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n"); -inline int iwl_eeprom_aqcuire_semaphore(struct iwl_priv *priv) + return 0; +} + + +/****************************************************************************** + * + * EEPROM related functions + * + ******************************************************************************/ + +/* + * Clear the OWNER_MSK, to establish driver (instead of uCode running on + * embedded controller) as EEPROM reader; each read is a series of pulses + * to/from the EEPROM chip, not a single event, so even reads could conflict + * if they weren't arbitrated by some ownership mechanism. Here, the driver + * simply claims ownership, which should be safe when this function is called + * (i.e. before loading uCode!). + */ +static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv) { _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); return 0; } -MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); + +static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv) +{ + return; +} + + /** + * iwl3945_load_bsm - Load bootstrap instructions + * + * BSM operation: + * + * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program + * in special SRAM that does not power down during RFKILL. When powering back + * up after power-saving sleeps (or during initial uCode load), the BSM loads + * the bootstrap program into the on-board processor, and starts it. + * + * The bootstrap program loads (via DMA) instructions and data for a new + * program from host DRAM locations indicated by the host driver in the + * BSM_DRAM_* registers. Once the new program is loaded, it starts + * automatically. + * + * When initializing the NIC, the host driver points the BSM to the + * "initialize" uCode image. This uCode sets up some internal data, then + * notifies host via "initialize alive" that it is complete. + * + * The host then replaces the BSM_DRAM_* pointer values to point to the + * normal runtime uCode instructions and a backup uCode data cache buffer + * (filled initially with starting data values for the on-board processor), + * then triggers the "initialize" uCode to load and launch the runtime uCode, + * which begins normal operation. + * + * When doing a power-save shutdown, runtime uCode saves data SRAM into + * the backup data cache in DRAM before SRAM is powered down. + * + * When powering back up, the BSM loads the bootstrap program. This reloads + * the runtime uCode instructions and the backup data cache into SRAM, + * and re-launches the runtime uCode from where it left off. + */ +static int iwl3945_load_bsm(struct iwl_priv *priv) +{ + __le32 *image = priv->ucode_boot.v_addr; + u32 len = priv->ucode_boot.len; + dma_addr_t pinst; + dma_addr_t pdata; + u32 inst_len; + u32 data_len; + int rc; + int i; + u32 done; + u32 reg_offset; + + IWL_DEBUG_INFO(priv, "Begin load bsm\n"); + + /* make sure bootstrap program is no larger than BSM's SRAM size */ + if (len > IWL39_MAX_BSM_SIZE) + return -EINVAL; + + /* Tell bootstrap uCode where to find the "Initialize" uCode + * in host DRAM ... host DRAM physical address bits 31:0 for 3945. + * NOTE: iwl3945_initialize_alive_start() will replace these values, + * after the "initialize" uCode has run, to point to + * runtime/protocol instructions and backup data cache. */ + pinst = priv->ucode_init.p_addr; + pdata = priv->ucode_init_data.p_addr; + inst_len = priv->ucode_init.len; + data_len = priv->ucode_init_data.len; + + iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); + iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); + iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); + iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); + + /* Fill BSM memory with bootstrap instructions */ + for (reg_offset = BSM_SRAM_LOWER_BOUND; + reg_offset < BSM_SRAM_LOWER_BOUND + len; + reg_offset += sizeof(u32), image++) + _iwl_write_prph(priv, reg_offset, + le32_to_cpu(*image)); + + rc = iwl3945_verify_bsm(priv); + if (rc) + return rc; + + /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ + iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); + iwl_write_prph(priv, BSM_WR_MEM_DST_REG, + IWL39_RTC_INST_LOWER_BOUND); + iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); + + /* Load bootstrap code into instruction SRAM now, + * to prepare to load "initialize" uCode */ + iwl_write_prph(priv, BSM_WR_CTRL_REG, + BSM_WR_CTRL_REG_BIT_START); + + /* Wait for load of bootstrap uCode to finish */ + for (i = 0; i < 100; i++) { + done = iwl_read_prph(priv, BSM_WR_CTRL_REG); + if (!(done & BSM_WR_CTRL_REG_BIT_START)) + break; + udelay(10); + } + if (i < 100) + IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i); + else { + IWL_ERR(priv, "BSM write did not complete!\n"); + return -EIO; + } + + /* Enable future boot loads whenever power management unit triggers it + * (e.g. when powering back up after power-save shutdown) */ + iwl_write_prph(priv, BSM_WR_CTRL_REG, + BSM_WR_CTRL_REG_BIT_START_EN); + + return 0; +} + +#define IWL3945_UCODE_GET(item) \ +static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode,\ + u32 api_ver) \ +{ \ + return le32_to_cpu(ucode->u.v1.item); \ +} + +static u32 iwl3945_ucode_get_header_size(u32 api_ver) +{ + return UCODE_HEADER_SIZE(1); +} +static u32 iwl3945_ucode_get_build(const struct iwl_ucode_header *ucode, + u32 api_ver) +{ + return 0; +} +static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode, + u32 api_ver) +{ + return (u8 *) ucode->u.v1.data; +} + +IWL3945_UCODE_GET(inst_size); +IWL3945_UCODE_GET(data_size); +IWL3945_UCODE_GET(init_size); +IWL3945_UCODE_GET(init_data_size); +IWL3945_UCODE_GET(boot_size); + +static struct iwl_hcmd_ops iwl3945_hcmd = { + .rxon_assoc = iwl3945_send_rxon_assoc, + .commit_rxon = iwl3945_commit_rxon, +}; + +static struct iwl_ucode_ops iwl3945_ucode = { + .get_header_size = iwl3945_ucode_get_header_size, + .get_build = iwl3945_ucode_get_build, + .get_inst_size = iwl3945_ucode_get_inst_size, + .get_data_size = iwl3945_ucode_get_data_size, + .get_init_size = iwl3945_ucode_get_init_size, + .get_init_data_size = iwl3945_ucode_get_init_data_size, + .get_boot_size = iwl3945_ucode_get_boot_size, + .get_data = iwl3945_ucode_get_data, +}; + +static struct iwl_lib_ops iwl3945_lib = { + .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd, + .txq_free_tfd = iwl3945_hw_txq_free_tfd, + .txq_init = iwl3945_hw_tx_queue_init, + .load_ucode = iwl3945_load_bsm, + .dump_nic_event_log = iwl3945_dump_nic_event_log, + .dump_nic_error_log = iwl3945_dump_nic_error_log, + .apm_ops = { + .init = iwl3945_apm_init, + .stop = iwl_apm_stop, + .config = iwl3945_nic_config, + .set_pwr_src = iwl3945_set_pwr_src, + }, + .eeprom_ops = { + .regulatory_bands = { + EEPROM_REGULATORY_BAND_1_CHANNELS, + EEPROM_REGULATORY_BAND_2_CHANNELS, + EEPROM_REGULATORY_BAND_3_CHANNELS, + EEPROM_REGULATORY_BAND_4_CHANNELS, + EEPROM_REGULATORY_BAND_5_CHANNELS, + EEPROM_REGULATORY_BAND_NO_HT40, + EEPROM_REGULATORY_BAND_NO_HT40, + }, + .verify_signature = iwlcore_eeprom_verify_signature, + .acquire_semaphore = iwl3945_eeprom_acquire_semaphore, + .release_semaphore = iwl3945_eeprom_release_semaphore, + .query_addr = iwlcore_eeprom_query_addr, + }, + .send_tx_power = iwl3945_send_tx_power, + .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr, + .post_associate = iwl3945_post_associate, + .isr = iwl_isr_legacy, + .config_ap = iwl3945_config_ap, +}; + +static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = { + .get_hcmd_size = iwl3945_get_hcmd_size, + .build_addsta_hcmd = iwl3945_build_addsta_hcmd, + .rts_tx_cmd_flag = iwlcore_rts_tx_cmd_flag, +}; + +static struct iwl_ops iwl3945_ops = { + .ucode = &iwl3945_ucode, + .lib = &iwl3945_lib, + .hcmd = &iwl3945_hcmd, + .utils = &iwl3945_hcmd_utils, + .led = &iwl3945_led_ops, +}; + +static struct iwl_cfg iwl3945_bg_cfg = { + .name = "3945BG", + .fw_name_pre = IWL3945_FW_PRE, + .ucode_api_max = IWL3945_UCODE_API_MAX, + .ucode_api_min = IWL3945_UCODE_API_MIN, + .sku = IWL_SKU_G, + .eeprom_size = IWL3945_EEPROM_IMG_SIZE, + .eeprom_ver = EEPROM_3945_EEPROM_VERSION, + .ops = &iwl3945_ops, + .num_of_queues = IWL39_NUM_QUEUES, + .mod_params = &iwl3945_mod_params, + .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL, + .set_l0s = false, + .use_bsm = true, + .use_isr_legacy = true, + .ht_greenfield_support = false, + .led_compensation = 64, +}; + +static struct iwl_cfg iwl3945_abg_cfg = { + .name = "3945ABG", + .fw_name_pre = IWL3945_FW_PRE, + .ucode_api_max = IWL3945_UCODE_API_MAX, + .ucode_api_min = IWL3945_UCODE_API_MIN, + .sku = IWL_SKU_A|IWL_SKU_G, + .eeprom_size = IWL3945_EEPROM_IMG_SIZE, + .eeprom_ver = EEPROM_3945_EEPROM_VERSION, + .ops = &iwl3945_ops, + .num_of_queues = IWL39_NUM_QUEUES, + .mod_params = &iwl3945_mod_params, + .use_isr_legacy = true, + .ht_greenfield_support = false, + .led_compensation = 64, +}; + +struct pci_device_id iwl3945_hw_card_ids[] = { + {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)}, + {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)}, + {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)}, + {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)}, + {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)}, + {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)}, + {0} +}; + +MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);