diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-hw.h | 117 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 44 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000-hw.h | 37 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 54 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 260 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-commands.h | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 49 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.h | 16 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debug.h | 10 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 43 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-fh.h | 83 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-power.c | 17 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-rx.c | 22 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-spectrum.c | 198 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-spectrum.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-tx.c | 55 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl3945-base.c | 49 |
18 files changed, 453 insertions, 615 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 47aa28f6a513..8b45b30e6d5c 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -5,6 +5,7 @@ iwlcore-objs += iwl-scan.o iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o +iwlcore-$(CONFIG_IWLAGN_SPECTRUM_MEASUREMENT) += iwl-spectrum.o obj-$(CONFIG_IWLAGN) += iwlagn.o iwlagn-objs := iwl-agn.o iwl-agn-rs.o diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h index 9da7c7bea752..fb0fd773960f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h @@ -819,64 +819,6 @@ enum { #define IWL49_NUM_QUEUES 16 #define IWL49_NUM_AMPDU_QUEUES 8 -#define IWL_TX_DMA_MASK (DMA_BIT_MASK(36) & ~0x3) -#define IWL_NUM_OF_TBS 20 - -static inline u8 iwl_get_dma_hi_addr(dma_addr_t addr) -{ - return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF; -} -/** - * struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor - * - * This structure contains dma address and length of transmission address - * - * @lo: low [31:0] portion of the dma address of TX buffer - * every even is unaligned on 16 bit boundary - * @hi_n_len 0-3 [35:32] portion of dma - * 4-16 length of the tx buffer - */ -struct iwl_tfd_tb { - __le32 lo; - __le16 hi_n_len; -} __attribute__((packed)); - -/** - * struct iwl_tfd - * - * Transmit Frame Descriptor (TFD) - * - * @ __reserved1[3] reserved - * @ num_tbs 0-5 number of active tbs - * 6-7 padding (not used) - * @ tbs[20] transmit frame buffer descriptors - * @ __pad padding - * - * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM. - * Both driver and device share these circular buffers, each of which must be - * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes - * - * Driver must indicate the physical address of the base of each - * circular buffer via the FH_MEM_CBBC_QUEUE registers. - * - * Each TFD contains pointer/size information for up to 20 data buffers - * in host DRAM. These buffers collectively contain the (one) frame described - * by the TFD. Each buffer must be a single contiguous block of memory within - * itself, but buffers may be scattered in host DRAM. Each buffer has max size - * of (4K - 4). The concatenates all of a TFD's buffers into a single - * Tx frame, up to 8 KBytes in size. - * - * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx. - * - * Bit fields in the control dword (val0): - */ -struct iwl_tfd { - u8 __reserved1[3]; - u8 num_tbs; - struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS]; - __le32 __pad; -} __attribute__ ((packed)); - /** * struct iwl4965_schedq_bc_tbl @@ -896,64 +838,9 @@ struct iwl_tfd { * padding puts each byte count table on a 1024-byte boundary; * 4965 assumes tables are separated by 1024 bytes. */ -struct iwl4965_schedq_bc_tbl { +struct iwl4965_scd_bc_tbl { __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)]; } __attribute__ ((packed)); - -/** - * struct iwl4965_shared - handshake area for Tx and Rx - * - * For convenience in allocating memory, this structure combines 2 areas of - * DRAM which must be shared between driver and 4965. These do not need to - * be combined, if better allocation would result from keeping them separate: - * - * 1) The Tx byte count tables occupy 1024 bytes each (16 KBytes total for - * 16 queues). Driver uses SCD_DRAM_BASE_ADDR to tell 4965 where to find - * the first of these tables. 4965 assumes tables are 1024 bytes apart. - * - * 2) The Rx status (val0 and val1) occupies only 8 bytes. Driver uses - * FH_RSCSR_CHNL0_STTS_WPTR_REG to tell 4965 where to find this area. - * Driver reads val0 to determine the latest Receive Buffer Descriptor (RBD) - * that has been filled by the 4965. - * - * Bit fields val0: - * 31-12: Not used - * 11- 0: Index of last filled Rx buffer descriptor (4965 writes, driver reads) - * - * Bit fields val1: - * 31- 0: Not used - */ -struct iwl4965_shared { - struct iwl4965_schedq_bc_tbl queues_bc_tbls[IWL49_NUM_QUEUES]; - __le32 rb_closed; - - /* __le32 rb_closed_stts_rb_num:12; */ -#define IWL_rb_closed_stts_rb_num_POS 0 -#define IWL_rb_closed_stts_rb_num_LEN 12 -#define IWL_rb_closed_stts_rb_num_SYM rb_closed - /* __le32 rsrv1:4; */ - /* __le32 rb_closed_stts_rx_frame_num:12; */ -#define IWL_rb_closed_stts_rx_frame_num_POS 16 -#define IWL_rb_closed_stts_rx_frame_num_LEN 12 -#define IWL_rb_closed_stts_rx_frame_num_SYM rb_closed - /* __le32 rsrv2:4; */ - - __le32 frm_finished; - /* __le32 frame_finished_stts_rb_num:12; */ -#define IWL_frame_finished_stts_rb_num_POS 0 -#define IWL_frame_finished_stts_rb_num_LEN 12 -#define IWL_frame_finished_stts_rb_num_SYM frm_finished - /* __le32 rsrv3:4; */ - /* __le32 frame_finished_stts_rx_frame_num:12; */ -#define IWL_frame_finished_stts_rx_frame_num_POS 16 -#define IWL_frame_finished_stts_rx_frame_num_LEN 12 -#define IWL_frame_finished_stts_rx_frame_num_SYM frm_finished - /* __le32 rsrv4:4; */ - - __le32 padding1; /* so that allocation will be aligned to 16B */ - __le32 padding2; -} __attribute__ ((packed)); - -#endif /* __iwl4965_4965_hw_h__ */ +#endif /* !__iwl_4965_hw_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 157cad4e9da0..c43cf2f072cd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -715,8 +715,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv) /* Tel 4965 where to find Tx byte count tables */ iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR, - (priv->shared_phys + - offsetof(struct iwl4965_shared, queues_bc_tbls)) >> 10); + priv->scd_bc_tbls.dma >> 10); /* Disable chain mode for all queues */ iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0); @@ -804,6 +803,8 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv) } priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues; + priv->hw_params.scd_bc_tbls_size = + IWL49_NUM_QUEUES * sizeof(struct iwl4965_scd_bc_tbl); priv->hw_params.max_stations = IWL4965_STATION_COUNT; priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID; priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE; @@ -1631,36 +1632,6 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) } #endif -static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv) -{ - struct iwl4965_shared *s = priv->shared_virt; - return le32_to_cpu(s->rb_closed) & 0xFFF; -} - -static int iwl4965_alloc_shared_mem(struct iwl_priv *priv) -{ - priv->shared_virt = pci_alloc_consistent(priv->pci_dev, - sizeof(struct iwl4965_shared), - &priv->shared_phys); - if (!priv->shared_virt) - return -ENOMEM; - - memset(priv->shared_virt, 0, sizeof(struct iwl4965_shared)); - - priv->rb_closed_offset = offsetof(struct iwl4965_shared, rb_closed); - - return 0; -} - -static void iwl4965_free_shared_mem(struct iwl_priv *priv) -{ - if (priv->shared_virt) - pci_free_consistent(priv->pci_dev, - sizeof(struct iwl4965_shared), - priv->shared_virt, - priv->shared_phys); -} - /** * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array */ @@ -1668,7 +1639,7 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq, u16 byte_cnt) { - struct iwl4965_shared *shared_data = priv->shared_virt; + struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; int txq_id = txq->q.id; int write_ptr = txq->q.write_ptr; int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; @@ -1678,11 +1649,11 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv, bc_ent = cpu_to_le16(len & 0xFFF); /* Set up byte count within first 256 entries */ - shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent; + scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; /* If within first 64 entries, duplicate at end */ if (write_ptr < TFD_QUEUE_SIZE_BC_DUP) - shared_data->queues_bc_tbls[txq_id]. + scd_bc_tbl[txq_id]. tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; } @@ -2304,9 +2275,6 @@ static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = { static struct iwl_lib_ops iwl4965_lib = { .set_hw_params = iwl4965_hw_set_hw_params, - .alloc_shared_mem = iwl4965_alloc_shared_mem, - .free_shared_mem = iwl4965_free_shared_mem, - .shared_mem_rx_idx = iwl4965_shared_mem_rx_idx, .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl, .txq_set_sched = iwl4965_txq_set_sched, .txq_agg_enable = iwl4965_txq_agg_enable, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h index 12c74048a396..c6595e8b4405 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h @@ -90,45 +90,10 @@ * @tfd_offset 0-12 - tx command byte count * 12-16 - station index */ -struct iwl5000_schedq_bc_tbl { +struct iwl5000_scd_bc_tbl { __le16 tfd_offset[TFD_QUEUE_BC_SIZE]; } __attribute__ ((packed)); -/** - * struct iwl5000_shared - * @rb_closed - * address is provided to FH_RSCSR_CHNL0_STTS_WPTR_REG - */ -struct iwl5000_shared { - struct iwl5000_schedq_bc_tbl queues_bc_tbls[IWL50_NUM_QUEUES]; - __le32 rb_closed; - - /* __le32 rb_closed_stts_rb_num:12; */ -#define IWL_rb_closed_stts_rb_num_POS 0 -#define IWL_rb_closed_stts_rb_num_LEN 12 -#define IWL_rb_closed_stts_rb_num_SYM rb_closed - /* __le32 rsrv1:4; */ - /* __le32 rb_closed_stts_rx_frame_num:12; */ -#define IWL_rb_closed_stts_rx_frame_num_POS 16 -#define IWL_rb_closed_stts_rx_frame_num_LEN 12 -#define IWL_rb_closed_stts_rx_frame_num_SYM rb_closed - /* __le32 rsrv2:4; */ - - __le32 frm_finished; - /* __le32 frame_finished_stts_rb_num:12; */ -#define IWL_frame_finished_stts_rb_num_POS 0 -#define IWL_frame_finished_stts_rb_num_LEN 12 -#define IWL_frame_finished_stts_rb_num_SYM frm_finished - /* __le32 rsrv3:4; */ - /* __le32 frame_finished_stts_rx_frame_num:12; */ -#define IWL_frame_finished_stts_rx_frame_num_POS 16 -#define IWL_frame_finished_stts_rx_frame_num_LEN 12 -#define IWL_frame_finished_stts_rx_frame_num_SYM frm_finished - /* __le32 rsrv4:4; */ - - __le32 padding1; /* so that allocation will be aligned to 16B */ - __le32 padding2; -} __attribute__ ((packed)); #endif /* __iwl_5000_hw_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 31e62a838ad4..ee3613db3132 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -721,11 +721,9 @@ static int iwl5000_alive_notify(struct iwl_priv *priv) iwl_write_targ_mem(priv, a, 0); iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR, - (priv->shared_phys + - offsetof(struct iwl5000_shared, queues_bc_tbls)) >> 10); + priv->scd_bc_tbls.dma >> 10); iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, - IWL50_SCD_QUEUECHAIN_SEL_ALL( - priv->hw_params.max_txq_num)); + IWL50_SCD_QUEUECHAIN_SEL_ALL(priv->hw_params.max_txq_num)); iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0); /* initiate the queues */ @@ -788,6 +786,8 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) } priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues; + priv->hw_params.scd_bc_tbls_size = + IWL50_NUM_QUEUES * sizeof(struct iwl5000_scd_bc_tbl); priv->hw_params.max_stations = IWL5000_STATION_COUNT; priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID; priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE; @@ -853,36 +853,6 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) return 0; } -static int iwl5000_alloc_shared_mem(struct iwl_priv *priv) -{ - priv->shared_virt = pci_alloc_consistent(priv->pci_dev, - sizeof(struct iwl5000_shared), - &priv->shared_phys); - if (!priv->shared_virt) - return -ENOMEM; - - memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared)); - - priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed); - - return 0; -} - -static void iwl5000_free_shared_mem(struct iwl_priv *priv) -{ - if (priv->shared_virt) - pci_free_consistent(priv->pci_dev, - sizeof(struct iwl5000_shared), - priv->shared_virt, - priv->shared_phys); -} - -static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv) -{ - struct iwl5000_shared *s = priv->shared_virt; - return le32_to_cpu(s->rb_closed) & 0xFFF; -} - /** * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array */ @@ -890,7 +860,7 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq, u16 byte_cnt) { - struct iwl5000_shared *shared_data = priv->shared_virt; + struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; int write_ptr = txq->q.write_ptr; int txq_id = txq->q.id; u8 sec_ctl = 0; @@ -919,17 +889,17 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12)); - shared_data->queues_bc_tbls[txq_id].tfd_offset[write_ptr] = bc_ent; + scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent; if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP) - shared_data->queues_bc_tbls[txq_id]. + scd_bc_tbl[txq_id]. tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent; } static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq) { - struct iwl5000_shared *shared_data = priv->shared_virt; + struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr; int txq_id = txq->q.id; int read_ptr = txq->q.read_ptr; u8 sta_id = 0; @@ -941,11 +911,10 @@ static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id; bc_ent = cpu_to_le16(1 | (sta_id << 12)); - shared_data->queues_bc_tbls[txq_id]. - tfd_offset[read_ptr] = bc_ent; + scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent; if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP) - shared_data->queues_bc_tbls[txq_id]. + scd_bc_tbl[txq_id]. tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent; } @@ -1458,9 +1427,6 @@ static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = { static struct iwl_lib_ops iwl5000_lib = { .set_hw_params = iwl5000_hw_set_hw_params, - .alloc_shared_mem = iwl5000_alloc_shared_mem, - .free_shared_mem = iwl5000_free_shared_mem, - .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx, .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl, .txq_set_sched = iwl5000_txq_set_sched, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 35cfa1524c35..8fa4f7a2dc1a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -871,138 +871,6 @@ static void iwl_set_rate(struct iwl_priv *priv) (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; } -#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT - -#include "iwl-spectrum.h" - -#define BEACON_TIME_MASK_LOW 0x00FFFFFF -#define BEACON_TIME_MASK_HIGH 0xFF000000 -#define TIME_UNIT 1024 - -/* - * extended beacon time format - * time in usec will be changed into a 32-bit value in 8:24 format - * the high 1 byte is the beacon counts - * the lower 3 bytes is the time in usec within one beacon interval - */ - -static u32 iwl_usecs_to_beacons(u32 usec, u32 beacon_interval) -{ - u32 quot; - u32 rem; - u32 interval = beacon_interval * 1024; - - if (!interval || !usec) - return 0; - - quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); - rem = (usec % interval) & BEACON_TIME_MASK_LOW; - - return (quot << 24) + rem; -} - -/* base is usually what we get from ucode with each received frame, - * the same as HW timer counter counting down - */ - -static __le32 iwl_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) -{ - u32 base_low = base & BEACON_TIME_MASK_LOW; - u32 addon_low = addon & BEACON_TIME_MASK_LOW; - u32 interval = beacon_interval * TIME_UNIT; - u32 res = (base & BEACON_TIME_MASK_HIGH) + - (addon & BEACON_TIME_MASK_HIGH); - - if (base_low > addon_low) - res += base_low - addon_low; - else if (base_low < addon_low) { - res += interval + base_low - addon_low; - res += (1 << 24); - } else - res += (1 << 24); - - return cpu_to_le32(res); -} - -static int iwl_get_measurement(struct iwl_priv *priv, - struct ieee80211_measurement_params *params, - u8 type) -{ - struct iwl4965_spectrum_cmd spectrum; - struct iwl_rx_packet *res; - struct iwl_host_cmd cmd = { - .id = REPLY_SPECTRUM_MEASUREMENT_CMD, - .data = (void *)&spectrum, - .meta.flags = CMD_WANT_SKB, - }; - u32 add_time = le64_to_cpu(params->start_time); - int rc; - int spectrum_resp_status; - int duration = le16_to_cpu(params->duration); - - if (iwl_is_associated(priv)) - add_time = - iwl_usecs_to_beacons( - le64_to_cpu(params->start_time) - priv->last_tsf, - le16_to_cpu(priv->rxon_timing.beacon_interval)); - - memset(&spectrum, 0, sizeof(spectrum)); - - spectrum.channel_count = cpu_to_le16(1); - spectrum.flags = - RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; - spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; - cmd.len = sizeof(spectrum); - spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); - - if (iwl_is_associated(priv)) - spectrum.start_time = - iwl_add_beacon_time(priv->last_beacon_time, - add_time, - le16_to_cpu(priv->rxon_timing.beacon_interval)); - else - spectrum.start_time = 0; - - spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); - spectrum.channels[0].channel = params->channel; - spectrum.channels[0].type = type; - if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) - spectrum.flags |= RXON_FLG_BAND_24G_MSK | - RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; - - rc = iwl_send_cmd_sync(priv, &cmd); - if (rc) - return rc; - - res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; - if (res->hdr.flags & IWL_CMD_FAILED_MSK) { - IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); - rc = -EIO; - } - - spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); - switch (spectrum_resp_status) { - case 0: /* Command will be handled */ - if (res->u.spectrum.id != 0xff) { - IWL_DEBUG_INFO - ("Replaced existing measurement: %d\n", - res->u.spectrum.id); - priv->measurement_status &= ~MEASUREMENT_READY; - } - priv->measurement_status |= MEASUREMENT_ACTIVE; - rc = 0; - break; - - case 1: /* Command will not be handled */ - rc = -EAGAIN; - break; - } - - dev_kfree_skb_any(cmd.meta.u.skb); - - return rc; -} -#endif /****************************************************************************** * @@ -1072,24 +940,6 @@ static void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) priv->staging_rxon.channel = csa->channel; } -static void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); - - if (!report->state) { - IWL_DEBUG(IWL_DL_11H, - "Spectrum Measure Notification: Start\n"); - return; - } - - memcpy(&priv->measure_report, report, sizeof(*report)); - priv->measurement_status |= MEASUREMENT_READY; -#endif -} - static void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { @@ -1298,8 +1148,6 @@ static void iwl_setup_rx_handlers(struct iwl_priv *priv) priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; - priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = - iwl_rx_spectrum_measure_notif; priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = iwl_rx_pm_debug_statistics_notif; @@ -1313,6 +1161,7 @@ static void iwl_setup_rx_handlers(struct iwl_priv *priv) priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; + iwl_setup_spectrum_handlers(priv); iwl_setup_rx_scan_handlers(priv); /* status change handler */ @@ -1359,7 +1208,7 @@ void iwl_rx_handle(struct iwl_priv *priv) /* uCode's read index (stored in shared DRAM) indicates the last Rx * buffer that the driver may process (last buffer filled by ucode). */ - r = priv->cfg->ops->lib->shared_mem_rx_idx(priv); + r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; i = rxq->read; /* Rx interrupt, but nothing sent from uCode */ @@ -2002,6 +1851,10 @@ static int iwl_read_ucode(struct iwl_priv *priv) return ret; } +/* temporary */ +static int iwl_mac_beacon_update(struct ieee80211_hw *hw, + struct sk_buff *skb); + /** * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's @@ -2084,6 +1937,15 @@ static void iwl_alive_start(struct iwl_priv *priv) iwl_power_update_mode(priv, 1); + /* reassociate for ADHOC mode */ + if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { + struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, + priv->vif); + if (beacon) + iwl_mac_beacon_update(priv->hw, beacon); + } + + if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) iwl_set_mode(priv, priv->iw_mode); @@ -2183,8 +2045,6 @@ static void __iwl_down(struct iwl_priv *priv) priv->cfg->ops->lib->apm_ops.stop(priv); else priv->cfg->ops->lib->apm_ops.reset(priv); - priv->cfg->ops->lib->free_shared_mem(priv); - exit: memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); @@ -2237,12 +2097,6 @@ static int __iwl_up(struct iwl_priv *priv) iwl_write32(priv, CSR_INT, 0xFFFFFFFF); - ret = priv->cfg->ops->lib->alloc_shared_mem(priv); - if (ret) { - IWL_ERROR("Unable to allocate shared memory\n"); - return ret; - } - ret = iwl_hw_nic_init(priv); if (ret) { IWL_ERROR("Unable to init nic\n"); @@ -2930,8 +2784,6 @@ static void iwl_config_ap(struct iwl_priv *priv) * clear sta table, add BCAST sta... */ } -/* temporary */ -static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb); static int iwl_mac_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -2953,7 +2805,9 @@ static int iwl_mac_config_interface(struct ieee80211_hw *hw, struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); if (!beacon) return -ENOMEM; + mutex_lock(&priv->mutex); rc = iwl_mac_beacon_update(hw, beacon); + mutex_unlock(&priv->mutex); if (rc) return rc; } @@ -3529,18 +3383,15 @@ static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) unsigned long flags; __le64 timestamp; - mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211("enter\n"); if (!iwl_is_ready_rf(priv)) { IWL_DEBUG_MAC80211("leave - RF not ready\n"); - mutex_unlock(&priv->mutex); return -EIO; } if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { IWL_DEBUG_MAC80211("leave - not IBSS\n"); - mutex_unlock(&priv->mutex); return -EIO; } @@ -3562,7 +3413,6 @@ static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) iwl_post_associate(priv); - mutex_unlock(&priv->mutex); return 0; } @@ -3766,79 +3616,6 @@ static ssize_t store_filter_flags(struct device *d, static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, store_filter_flags); -#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT - -static ssize_t show_measurement(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl4965_spectrum_notification measure_report; - u32 size = sizeof(measure_report), len = 0, ofs = 0; - u8 *data = (u8 *)&measure_report; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - if (!(priv->measurement_status & MEASUREMENT_READY)) { - spin_unlock_irqrestore(&priv->lock, flags); - return 0; - } - memcpy(&measure_report, &priv->measure_report, size); - priv->measurement_status = 0; - spin_unlock_irqrestore(&priv->lock, flags); - - while (size && (PAGE_SIZE - len)) { - hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, - PAGE_SIZE - len, 1); - len = strlen(buf); - if (PAGE_SIZE - len) - buf[len++] = '\n'; - - ofs += 16; - size -= min(size, 16U); - } - - return len; -} - -static ssize_t store_measurement(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct ieee80211_measurement_params params = { - .channel = le16_to_cpu(priv->active_rxon.channel), - .start_time = cpu_to_le64(priv->last_tsf), - .duration = cpu_to_le16(1), - }; - u8 type = IWL_MEASURE_BASIC; - u8 buffer[32]; - u8 channel; - - if (count) { - char *p = buffer; - strncpy(buffer, buf, min(sizeof(buffer), count)); - channel = simple_strtoul(p, NULL, 0); - if (channel) - params.channel = channel; - - p = buffer; - while (*p && *p != ' ') - p++; - if (*p) - type = simple_strtoul(p + 1, NULL, 0); - } - - IWL_DEBUG_INFO("Invoking measurement of type %d on " - "channel %d (for '%s')\n", type, params.channel, buf); - iwl_get_measurement(priv, ¶ms, type); - - return count; -} - -static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, - show_measurement, store_measurement); -#endif /* CONFIG_IWLAGN_SPECTRUM_MEASUREMENT */ - static ssize_t store_retry_rate(struct device *d, struct device_attribute *attr, const char *buf, size_t count) @@ -4091,9 +3868,6 @@ static struct attribute *iwl_sysfs_entries[] = { &dev_attr_channels.attr, &dev_attr_flags.attr, &dev_attr_filter_flags.attr, -#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT - &dev_attr_measurement.attr, -#endif &dev_attr_power_level.attr, &dev_attr_retry_rate.attr, &dev_attr_statistics.attr, diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index 8aade00e165a..1fe83d45443a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -213,10 +213,11 @@ struct iwl_cmd_header { } __attribute__ ((packed)); /** - * 4965 rate_n_flags bit fields + * iwlagn rate_n_flags bit fields * - * rate_n_flags format is used in following 4965 commands: + * rate_n_flags format is used in following iwlagn commands: * REPLY_RX (response only) + * REPLY_RX_MPDU (response only) * REPLY_TX (both command and response) * REPLY_TX_LINK_QUALITY_CMD * @@ -230,8 +231,9 @@ struct iwl_cmd_header { * 6) 54 Mbps * 7) 60 Mbps * - * 3: 0) Single stream (SISO) + * 4-3: 0) Single stream (SISO) * 1) Dual stream (MIMO) + * 2) Triple stream (MIMO) * * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data * @@ -252,8 +254,8 @@ struct iwl_cmd_header { * 110) 11 Mbps */ #define RATE_MCS_CODE_MSK 0x7 -#define RATE_MCS_MIMO_POS 3 -#define RATE_MCS_MIMO_MSK 0x8 +#define RATE_MCS_SPATIAL_POS 3 +#define RATE_MCS_SPATIAL_MSK 0x18 #define RATE_MCS_HT_DUP_POS 5 #define RATE_MCS_HT_DUP_MSK 0x20 diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 8eb02031e797..8bd4d087d4e2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -30,10 +30,9 @@ #include <linux/module.h> #include <net/mac80211.h> -struct iwl_priv; /* FIXME: remove */ -#include "iwl-debug.h" #include "iwl-eeprom.h" #include "iwl-dev.h" /* FIXME: remove */ +#include "iwl-debug.h" #include "iwl-core.h" #include "iwl-io.h" #include "iwl-rfkill.h" @@ -190,52 +189,6 @@ void iwl_hw_detect(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_hw_detect); -/* Tell nic where to find the "keep warm" buffer */ -int iwl_kw_init(struct iwl_priv *priv) -{ - unsigned long flags; - int ret; - - spin_lock_irqsave(&priv->lock, flags); - ret = iwl_grab_nic_access(priv); - if (ret) - goto out; - - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, - priv->kw.dma_addr >> 4); - iwl_release_nic_access(priv); -out: - spin_unlock_irqrestore(&priv->lock, flags); - return ret; -} - -int iwl_kw_alloc(struct iwl_priv *priv) -{ - struct pci_dev *dev = priv->pci_dev; - struct iwl_kw *kw = &priv->kw; - - kw->size = IWL_KW_SIZE; - kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr); - if (!kw->v_addr) - return -ENOMEM; - - return 0; -} - -/** - * iwl_kw_free - Free the "keep warm" buffer - */ -void iwl_kw_free(struct iwl_priv *priv) -{ - struct pci_dev *dev = priv->pci_dev; - struct iwl_kw *kw = &priv->kw; - - if (kw->v_addr) { - pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr); - memset(kw, 0, sizeof(*kw)); - } -} - int iwl_hw_nic_init(struct iwl_priv *priv) { unsigned long flags; diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 10f07f6e1737..ff966b8a0c6d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -102,10 +102,6 @@ struct iwl_hcmd_utils_ops { struct iwl_lib_ops { /* set hw dependent parameters */ int (*set_hw_params)(struct iwl_priv *priv); - /* ucode shared memory */ - int (*alloc_shared_mem)(struct iwl_priv *priv); - void (*free_shared_mem)(struct iwl_priv *priv); - int (*shared_mem_rx_idx)(struct iwl_priv *priv); /* Handling TX */ void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv, struct iwl_tx_queue *txq, @@ -198,10 +194,6 @@ int iwl_setup_mac(struct iwl_priv *priv); int iwl_set_hw_params(struct iwl_priv *priv); int iwl_init_drv(struct iwl_priv *priv); void iwl_uninit_drv(struct iwl_priv *priv); -/* "keep warm" functions */ -int iwl_kw_init(struct iwl_priv *priv); -int iwl_kw_alloc(struct iwl_priv *priv); -void iwl_kw_free(struct iwl_priv *priv); /***************************************************** * RX @@ -297,6 +289,14 @@ int iwl_send_calib_results(struct iwl_priv *priv); int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len); void iwl_calib_free_results(struct iwl_priv *priv); +/******************************************************************************* + * Spectrum Measureemtns in iwl-spectrum.c + ******************************************************************************/ +#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT +void iwl_setup_spectrum_handlers(struct iwl_priv *priv); +#else +static inline void iwl_setup_spectrum_handlers(struct iwl_priv *priv) {} +#endif /***************************************************** * S e n d i n g H o s t C o m m a n d s * *****************************************************/ diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 84b7772809e3..0e79a6ab4c81 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -40,6 +40,13 @@ do { if ((priv->debug_level & (level)) && net_ratelimit()) \ dev_printk(KERN_ERR, &(priv->hw->wiphy->dev), "%c %s " fmt, \ in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0) +#define iwl_print_hex_dump(priv, level, p, len) \ +do { \ + if (priv->debug_level & level) \ + print_hex_dump(KERN_DEBUG, "iwl data: ", \ + DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ +} while (0) + #ifdef CONFIG_IWLWIFI_DEBUGFS struct iwl_debugfs { const char *name; @@ -70,6 +77,9 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv); #else #define IWL_DEBUG(level, fmt, args...) #define IWL_DEBUG_LIMIT(level, fmt, args...) +static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, + void *p, u32 len) +{} #endif /* CONFIG_IWLWIFI_DEBUG */ diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index d509aed5567a..bd3df55e4953 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -301,7 +301,6 @@ struct iwl_host_cmd { /** * struct iwl_rx_queue - Rx queue - * @processed: Internal index to last handled Rx packet * @read: Shared index to newest available Rx buffer * @write: Shared index to oldest written Rx packet * @free_count: Number of pre-allocated buffers in rx_free @@ -316,13 +315,14 @@ struct iwl_rx_queue { dma_addr_t dma_addr; struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; - u32 processed; u32 read; u32 write; u32 free_count; struct list_head rx_free; struct list_head rx_used; int need_update; + struct iwl_rb_status *rb_stts; + dma_addr_t rb_stts_dma; spinlock_t lock; }; @@ -507,6 +507,7 @@ struct iwl_sensitivity_ranges { /** * struct iwl_hw_params * @max_txq_num: Max # Tx queues supported + * @scd_bc_tbls_size: size of scheduler byte count tables * @tx/rx_chains_num: Number of TX/RX chains * @valid_tx/rx_ant: usable antennas * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) @@ -524,6 +525,7 @@ struct iwl_sensitivity_ranges { */ struct iwl_hw_params { u16 max_txq_num; + u16 scd_bc_tbls_size; u8 tx_chains_num; u8 rx_chains_num; u8 valid_tx_ant; @@ -605,13 +607,9 @@ static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge) struct iwl_priv; -/* Structures, enum, and defines specific to the 4965 */ - -#define IWL_KW_SIZE 0x1000 /*4k */ - -struct iwl_kw { - dma_addr_t dma_addr; - void *v_addr; +struct iwl_dma_ptr { + dma_addr_t dma; + void *addr; size_t size; }; @@ -907,7 +905,9 @@ struct iwl_priv { struct iwl_rx_queue rxq; struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES]; unsigned long txq_ctx_active_msk; - struct iwl_kw kw; /* keep warm address */ + struct iwl_dma_ptr kw; /* keep warm address */ + struct iwl_dma_ptr scd_bc_tbls; + u32 scd_base_addr; /* scheduler sram base address */ unsigned long status; @@ -967,11 +967,7 @@ struct iwl_priv { struct ieee80211_vif *vif; struct iwl_hw_params hw_params; - /* driver/uCode shared Tx Byte Counts and Rx status */ - void *shared_virt; - int rb_closed_offset; - /* Physical Pointer to Tx Byte Counts and Rx status */ - dma_addr_t shared_phys; + /* Current association information needed to configure the * hardware */ @@ -1093,23 +1089,6 @@ static inline int is_channel_ibss(const struct iwl_channel_info *ch) return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; } -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - void *p, u32 len) -{ - if (!(priv->debug_level & level)) - return; - - print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1, - p, len, 1); -} -#else -static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - void *p, u32 len) -{ -} -#endif - extern const struct iwl_channel_info *iwl_get_channel_info( const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h index 97e2cf41258d..e46300c28a8f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/iwlwifi/iwl-fh.h @@ -266,6 +266,8 @@ #define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000) #define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000) +#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME (0x00008000) + /** * Rx Shared Status Registers (RSSR) @@ -403,5 +405,86 @@ #define TFD_QUEUE_SIZE_BC_DUP (64) #define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP) +/** + * struct iwl_rb_status - reseve buffer status + * host memory mapped FH registers + * @closed_rb_num [0:11] - Indicates the index of the RB which was closed + * @closed_fr_num [0:11] - Indicates the index of the RX Frame which was closed + * @finished_rb_num [0:11] - Indicates the index of the current RB + * in which the last frame was written to + * @finished_fr_num [0:11] - Indicates the index of the RX Frame + * which was transfered + */ +struct iwl_rb_status { + __le16 closed_rb_num; + __le16 closed_fr_num; + __le16 finished_rb_num; + __le16 finished_fr_nam; +} __attribute__ ((packed)); + + + +#define IWL_TX_DMA_MASK DMA_BIT_MASK(36) + +#define IWL_NUM_OF_TBS 20 + +static inline u8 iwl_get_dma_hi_addr(dma_addr_t addr) +{ + return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF; +} +/** + * struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor + * + * This structure contains dma address and length of transmission address + * + * @lo: low [31:0] portion of the dma address of TX buffer + * every even is unaligned on 16 bit boundary + * @hi_n_len 0-3 [35:32] portion of dma + * 4-16 length of the tx buffer + */ +struct iwl_tfd_tb { + __le32 lo; + __le16 hi_n_len; +} __attribute__((packed)); + +/** + * struct iwl_tfd + * + * Transmit Frame Descriptor (TFD) + * + * @ __reserved1[3] reserved + * @ num_tbs 0-5 number of active tbs + * 6-7 padding (not used) + * @ tbs[20] transmit frame buffer descriptors + * @ __pad padding + * + * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM. + * Both driver and device share these circular buffers, each of which must be + * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes + * + * Driver must indicate the physical address of the base of each + * circular buffer via the FH_MEM_CBBC_QUEUE registers. + * + * Each TFD contains pointer/size information for up to 20 data buffers + * in host DRAM. These buffers collectively contain the (one) frame described + * by the TFD. Each buffer must be a single contiguous block of memory within + * itself, but buffers may be scattered in host DRAM. Each buffer has max size + * of (4K - 4). The concatenates all of a TFD's buffers into a single + * Tx frame, up to 8 KBytes in size. + * + * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx. + * + * Bit fields in the control dword (val0): + */ +struct iwl_tfd { + u8 __reserved1[3]; + u8 num_tbs; + struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS]; + __le32 __pad; +} __attribute__ ((packed)); + + +/* Keep Warm Size */ +#define IWL_KW_SIZE 0x1000 /*4k */ #endif /* !__iwl_fh_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c index 07a5f60e9229..b429daa5a2bc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.c +++ b/drivers/net/wireless/iwlwifi/iwl-power.c @@ -257,15 +257,11 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force) struct iwl_power_mgr *setting = &(priv->power_data); int ret = 0; u16 uninitialized_var(final_mode); + bool update_chains; /* Don't update the RX chain when chain noise calibration is running */ - if (priv->chain_noise_data.state != IWL_CHAIN_NOISE_DONE && - priv->chain_noise_data.state != IWL_CHAIN_NOISE_ALIVE) { - IWL_DEBUG_POWER("Cannot update the power, chain noise " - "calibration running: %d\n", - priv->chain_noise_data.state); - return -EAGAIN; - } + update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE || + priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE; /* If on battery, set to 3, * if plugged into AC power, set to CAM ("continuously aware mode"), @@ -313,9 +309,12 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force) else set_bit(STATUS_POWER_PMI, &priv->status); - if (priv->cfg->ops->lib->update_chain_flags) + if (priv->cfg->ops->lib->update_chain_flags && update_chains) priv->cfg->ops->lib->update_chain_flags(priv); - + else + IWL_DEBUG_POWER("Cannot update the power, chain noise " + "calibration running: %d\n", + priv->chain_noise_data.state); if (!ret) setting->power_mode = final_mode; } diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index b3c35c64d042..876afd4cab9e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -218,8 +218,7 @@ int iwl_rx_queue_restock(struct iwl_priv *priv) /* If we've added more space for the firmware to place data, tell it. * Increment device's write pointer in multiples of 8. */ - if ((write != (rxq->write & ~0x7)) - || (abs(rxq->write - rxq->read) > 7)) { + if (write != (rxq->write & ~0x7)) { spin_lock_irqsave(&rxq->lock, flags); rxq->need_update = 1; spin_unlock_irqrestore(&rxq->lock, flags); @@ -317,7 +316,10 @@ void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, rxq->dma_addr); + pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status), + rxq->rb_stts, rxq->rb_stts_dma); rxq->bd = NULL; + rxq->rb_stts = NULL; } EXPORT_SYMBOL(iwl_rx_queue_free); @@ -334,7 +336,12 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv) /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr); if (!rxq->bd) - return -ENOMEM; + goto err_bd; + + rxq->rb_stts = pci_alloc_consistent(dev, sizeof(struct iwl_rb_status), + &rxq->rb_stts_dma); + if (!rxq->rb_stts) + goto err_rb; /* Fill the rx_used queue with _all_ of the Rx buffers */ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) @@ -346,6 +353,12 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv) rxq->free_count = 0; rxq->need_update = 0; return 0; + +err_rb: + pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, + rxq->dma_addr); +err_bd: + return -ENOMEM; } EXPORT_SYMBOL(iwl_rx_queue_alloc); @@ -412,7 +425,7 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) /* Tell device where in DRAM to update its Rx status */ iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG, - (priv->shared_phys + priv->rb_closed_offset) >> 4); + rxq->rb_stts_dma >> 4); /* Enable Rx DMA * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set because of HW bug in @@ -426,6 +439,7 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL | FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL | + FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME | rb_size| (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)| (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS)); diff --git a/drivers/net/wireless/iwlwifi/iwl-spectrum.c b/drivers/net/wireless/iwlwifi/iwl-spectrum.c new file mode 100644 index 000000000000..ad319a178a90 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-spectrum.c @@ -0,0 +1,198 @@ +/****************************************************************************** + * + * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * 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 + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/wireless.h> + +#include <net/mac80211.h> + +#include "iwl-eeprom.h" +#include "iwl-dev.h" +#include "iwl-core.h" +#include "iwl-io.h" +#include "iwl-spectrum.h" + +#define BEACON_TIME_MASK_LOW 0x00FFFFFF +#define BEACON_TIME_MASK_HIGH 0xFF000000 +#define TIME_UNIT 1024 + +/* + * extended beacon time format + * time in usec will be changed into a 32-bit value in 8:24 format + * the high 1 byte is the beacon counts + * the lower 3 bytes is the time in usec within one beacon interval + */ + +/* TOOD: was used in sysfs debug interface need to add to mac */ +#if 0 +static u32 iwl_usecs_to_beacons(u32 usec, u32 beacon_interval) +{ + u32 quot; + u32 rem; + u32 interval = beacon_interval * 1024; + + if (!interval || !usec) + return 0; + + quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); + rem = (usec % interval) & BEACON_TIME_MASK_LOW; + + return (quot << 24) + rem; +} + +/* base is usually what we get from ucode with each received frame, + * the same as HW timer counter counting down + */ + +static __le32 iwl_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) +{ + u32 base_low = base & BEACON_TIME_MASK_LOW; + u32 addon_low = addon & BEACON_TIME_MASK_LOW; + u32 interval = beacon_interval * TIME_UNIT; + u32 res = (base & BEACON_TIME_MASK_HIGH) + + (addon & BEACON_TIME_MASK_HIGH); + + if (base_low > addon_low) + res += base_low - addon_low; + else if (base_low < addon_low) { + res += interval + base_low - addon_low; + res += (1 << 24); + } else + res += (1 << 24); + + return cpu_to_le32(res); +} +static int iwl_get_measurement(struct iwl_priv *priv, + struct ieee80211_measurement_params *params, + u8 type) +{ + struct iwl4965_spectrum_cmd spectrum; + struct iwl_rx_packet *res; + struct iwl_host_cmd cmd = { + .id = REPLY_SPECTRUM_MEASUREMENT_CMD, + .data = (void *)&spectrum, + .meta.flags = CMD_WANT_SKB, + }; + u32 add_time = le64_to_cpu(params->start_time); + int rc; + int spectrum_resp_status; + int duration = le16_to_cpu(params->duration); + + if (iwl_is_associated(priv)) + add_time = + iwl_usecs_to_beacons( + le64_to_cpu(params->start_time) - priv->last_tsf, + le16_to_cpu(priv->rxon_timing.beacon_interval)); + + memset(&spectrum, 0, sizeof(spectrum)); + + spectrum.channel_count = cpu_to_le16(1); + spectrum.flags = + RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; + spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; + cmd.len = sizeof(spectrum); + spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); + + if (iwl_is_associated(priv)) + spectrum.start_time = + iwl_add_beacon_time(priv->last_beacon_time, + add_time, + le16_to_cpu(priv->rxon_timing.beacon_interval)); + else + spectrum.start_time = 0; + + spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); + spectrum.channels[0].channel = params->channel; + spectrum.channels[0].type = type; + if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) + spectrum.flags |= RXON_FLG_BAND_24G_MSK | + RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; + + rc = iwl_send_cmd_sync(priv, &cmd); + if (rc) + return rc; + + res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; + if (res->hdr.flags & IWL_CMD_FAILED_MSK) { + IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n"); + rc = -EIO; + } + + spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); + switch (spectrum_resp_status) { + case 0: /* Command will be handled */ + if (res->u.spectrum.id != 0xff) { + IWL_DEBUG_INFO + ("Replaced existing measurement: %d\n", + res->u.spectrum.id); + priv->measurement_status &= ~MEASUREMENT_READY; + } + priv->measurement_status |= MEASUREMENT_ACTIVE; + rc = 0; + break; + + case 1: /* Command will not be handled */ + rc = -EAGAIN; + break; + } + + dev_kfree_skb_any(cmd.meta.u.skb); + + return rc; +} +#endif + +static void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv, + struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif); + + if (!report->state) { + IWL_DEBUG(IWL_DL_11H, + "Spectrum Measure Notification: Start\n"); + return; + } + + memcpy(&priv->measure_report, report, sizeof(*report)); + priv->measurement_status |= MEASUREMENT_READY; +} + +void iwl_setup_spectrum_handlers(struct iwl_priv *priv) +{ + priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = + iwl_rx_spectrum_measure_notif; +} +EXPORT_SYMBOL(iwl_setup_spectrum_handlers); diff --git a/drivers/net/wireless/iwlwifi/iwl-spectrum.h b/drivers/net/wireless/iwlwifi/iwl-spectrum.h index a40a2174df98..fa990a102515 100644 --- a/drivers/net/wireless/iwlwifi/iwl-spectrum.h +++ b/drivers/net/wireless/iwlwifi/iwl-spectrum.h @@ -88,4 +88,5 @@ struct ieee80211_measurement_report { struct ieee80211_basic_report basic[0]; } u; } __attribute__ ((packed)); + #endif diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 7d8b4e2d5094..166f0001e01d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -56,6 +56,26 @@ static const u16 default_tid_to_tx_fifo[] = { IWL_TX_FIFO_AC3 }; +static inline int iwl_alloc_dma_ptr(struct iwl_priv *priv, + struct iwl_dma_ptr *ptr, size_t size) +{ + ptr->addr = pci_alloc_consistent(priv->pci_dev, size, &ptr->dma); + if (!ptr->addr) + return -ENOMEM; + ptr->size = size; + return 0; +} + +static inline void iwl_free_dma_ptr(struct iwl_priv *priv, + struct iwl_dma_ptr *ptr) +{ + if (unlikely(!ptr->addr)) + return; + + pci_free_consistent(priv->pci_dev, ptr->size, ptr->addr, ptr->dma); + memset(ptr, 0, sizeof(*ptr)); +} + static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) { struct iwl_tfd_tb *tb = &tfd->tbs[idx]; @@ -517,8 +537,9 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv) else iwl_tx_queue_free(priv, txq_id); - /* Keep-warm buffer */ - iwl_kw_free(priv); + iwl_free_dma_ptr(priv, &priv->kw); + + iwl_free_dma_ptr(priv, &priv->scd_bc_tbls); } EXPORT_SYMBOL(iwl_hw_txq_ctx_free); @@ -535,13 +556,17 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv) int txq_id, slots_num; unsigned long flags; - iwl_kw_free(priv); - /* Free all tx/cmd queues and keep-warm buffer */ iwl_hw_txq_ctx_free(priv); + ret = iwl_alloc_dma_ptr(priv, &priv->scd_bc_tbls, + priv->hw_params.scd_bc_tbls_size); + if (ret) { + IWL_ERROR("Scheduler BC Table allocation failed\n"); + goto error_bc_tbls; + } /* Alloc keep-warm buffer */ - ret = iwl_kw_alloc(priv); + ret = iwl_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); if (ret) { IWL_ERROR("Keep Warm allocation failed\n"); goto error_kw; @@ -556,16 +581,13 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv) /* Turn off all Tx DMA fifos */ priv->cfg->ops->lib->txq_set_sched(priv, 0); + /* Tell NIC where to find the "keep warm" buffer */ + iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); + iwl_release_nic_access(priv); spin_unlock_irqrestore(&priv->lock, flags); - /* Tell nic where to find the keep-warm buffer */ - ret = iwl_kw_init(priv); - if (ret) { - IWL_ERROR("kw_init failed\n"); - goto error_reset; - } /* Alloc and init all Tx queues, including the command queue (#4) */ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { @@ -584,8 +606,10 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv) error: iwl_hw_txq_ctx_free(priv); error_reset: - iwl_kw_free(priv); + iwl_free_dma_ptr(priv, &priv->kw); error_kw: + iwl_free_dma_ptr(priv, &priv->scd_bc_tbls); + error_bc_tbls: return ret; } @@ -1236,8 +1260,13 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) * command queue then there a command routing bug has been introduced * in the queue management code. */ if (WARN(txq_id != IWL_CMD_QUEUE_NUM, - "wrong command queue %d, command id 0x%X\n", txq_id, pkt->hdr.cmd)) + "wrong command queue %d, sequence 0x%X readp=%d writep=%d\n", + txq_id, sequence, + priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr, + priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) { + iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32); return; + } cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index a3ec4d0467a2..3344841b7662 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1418,9 +1418,16 @@ unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, return priv->ibss_beacon->len; } -static u8 iwl3945_rate_get_lowest_plcp(int rate_mask) +static u8 iwl3945_rate_get_lowest_plcp(struct iwl3945_priv *priv) { u8 i; + int rate_mask; + + /* Set rate mask*/ + if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) + rate_mask = priv->active_rate_basic & 0xF; + else + rate_mask = priv->active_rate_basic & 0xFF0; for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; i = iwl3945_rates[i].next_ieee) { @@ -1428,7 +1435,11 @@ static u8 iwl3945_rate_get_lowest_plcp(int rate_mask) return iwl3945_rates[i].plcp; } - return IWL_RATE_INVALID; + /* No valid rate was found. Assign the lowest one */ + if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) + return IWL_RATE_1M_PLCP; + else + return IWL_RATE_6M_PLCP; } static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) @@ -1446,16 +1457,7 @@ static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv) return -ENOMEM; } - if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) { - rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & - 0xFF0); - if (rate == IWL_INVALID_RATE) - rate = IWL_RATE_6M_PLCP; - } else { - rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & 0xF); - if (rate == IWL_INVALID_RATE) - rate = IWL_RATE_1M_PLCP; - } + rate = iwl3945_rate_get_lowest_plcp(priv); frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); @@ -4741,7 +4743,7 @@ static void iwl3945_free_channel_map(struct iwl3945_priv *priv) #define IWL_PASSIVE_DWELL_BASE (100) #define IWL_CHANNEL_TUNE_TIME 5 -#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) +#define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1))) static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, enum ieee80211_band band, @@ -5601,6 +5603,10 @@ static void iwl3945_init_alive_start(struct iwl3945_priv *priv) } +/* temporary */ +static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, + struct sk_buff *skb); + /** * iwl3945_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's @@ -5704,6 +5710,14 @@ static void iwl3945_alive_start(struct iwl3945_priv *priv) if (priv->error_recovering) iwl3945_error_recovery(priv); + /* reassociate for ADHOC mode */ + if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { + struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, + priv->vif); + if (beacon) + iwl3945_mac_beacon_update(priv->hw, beacon); + } + return; restart: @@ -6710,9 +6724,6 @@ static void iwl3945_config_ap(struct iwl3945_priv *priv) * clear sta table, add BCAST sta... */ } -/* temporary */ -static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb); - static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf) @@ -6734,7 +6745,9 @@ static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); if (!beacon) return -ENOMEM; + mutex_lock(&priv->mutex); rc = iwl3945_mac_beacon_update(hw, beacon); + mutex_unlock(&priv->mutex); if (rc) return rc; } @@ -7188,18 +7201,15 @@ static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk struct iwl3945_priv *priv = hw->priv; unsigned long flags; - mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211("enter\n"); if (!iwl3945_is_ready_rf(priv)) { IWL_DEBUG_MAC80211("leave - RF not ready\n"); - mutex_unlock(&priv->mutex); return -EIO; } if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { IWL_DEBUG_MAC80211("leave - not IBSS\n"); - mutex_unlock(&priv->mutex); return -EIO; } @@ -7219,7 +7229,6 @@ static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk iwl3945_post_associate(priv); - mutex_unlock(&priv->mutex); return 0; } |