diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/main.c')
-rw-r--r-- | drivers/net/wireless/ath/ath6kl/main.c | 448 |
1 files changed, 294 insertions, 154 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c index c336eae0cf48..30b5a53db9ed 100644 --- a/drivers/net/wireless/ath/ath6kl/main.c +++ b/drivers/net/wireless/ath/ath6kl/main.c @@ -61,7 +61,8 @@ static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie, sta = &ar->sta_list[free_slot]; memcpy(sta->mac, mac, ETH_ALEN); - memcpy(sta->wpa_ie, wpaie, ielen); + if (ielen <= ATH6KL_MAX_IE) + memcpy(sta->wpa_ie, wpaie, ielen); sta->aid = aid; sta->keymgmt = keymgmt; sta->ucipher = ucipher; @@ -177,8 +178,8 @@ void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) { int status; - u8 addr_val[4]; s32 i; + __le32 addr_val; /* * Write bytes 1,2,3 of the register to set the upper address bytes, @@ -188,16 +189,18 @@ static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) for (i = 1; i <= 3; i++) { /* * Fill the buffer with the address byte value we want to - * hit 4 times. + * hit 4 times. No need to worry about endianness as the + * same byte is copied to all four bytes of addr_val at + * any time. */ - memset(addr_val, ((u8 *)&addr)[i], 4); + memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); /* * Hit each byte of the register address with a 4-byte * write operation to the same address, this is a harmless * operation. */ - status = hif_read_write_sync(ar, reg_addr + i, addr_val, + status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, 4, HIF_WR_SYNC_BYTE_FIX); if (status) break; @@ -215,7 +218,9 @@ static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) * cycle to start, the extra 3 byte write to bytes 1,2,3 has no * effect since we are writing the same values again */ - status = hif_read_write_sync(ar, reg_addr, (u8 *)(&addr), + addr_val = cpu_to_le32(addr); + status = hif_read_write_sync(ar, reg_addr, + (u8 *)&(addr_val), 4, HIF_WR_SYNC_BYTE_INC); if (status) { @@ -228,90 +233,193 @@ static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) } /* - * Read from the ATH6KL through its diagnostic window. No cooperation from - * the Target is required for this. + * Read from the hardware through its diagnostic window. No cooperation + * from the firmware is required for this. */ -int ath6kl_read_reg_diag(struct ath6kl *ar, u32 *address, u32 *data) +int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) { - int status; + int ret; /* set window register to start read cycle */ - status = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, - *address); - - if (status) - return status; + ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address); + if (ret) + return ret; /* read the data */ - status = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *)data, - sizeof(u32), HIF_RD_SYNC_BYTE_INC); - if (status) { - ath6kl_err("failed to read from window data addr\n"); - return status; + ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value, + sizeof(*value), HIF_RD_SYNC_BYTE_INC); + if (ret) { + ath6kl_warn("failed to read32 through diagnose window: %d\n", + ret); + return ret; } - return status; + return 0; } - /* * Write to the ATH6KL through its diagnostic window. No cooperation from * the Target is required for this. */ -static int ath6kl_write_reg_diag(struct ath6kl *ar, u32 *address, u32 *data) +int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) { - int status; + int ret; /* set write data */ - status = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *)data, - sizeof(u32), HIF_WR_SYNC_BYTE_INC); - if (status) { - ath6kl_err("failed to write 0x%x to window data addr\n", *data); - return status; + ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value, + sizeof(value), HIF_WR_SYNC_BYTE_INC); + if (ret) { + ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", + address, value); + return ret; } /* set window register, which starts the write cycle */ return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, - *address); + address); } -int ath6kl_access_datadiag(struct ath6kl *ar, u32 address, - u8 *data, u32 length, bool read) +int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) +{ + u32 count, *buf = data; + int ret; + + if (WARN_ON(length % 4)) + return -EINVAL; + + for (count = 0; count < length / 4; count++, address += 4) { + ret = ath6kl_diag_read32(ar, address, &buf[count]); + if (ret) + return ret; + } + + return 0; +} + +int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) { u32 count; - int status = 0; + __le32 *buf = data; + int ret; - for (count = 0; count < length; count += 4, address += 4) { - if (read) { - status = ath6kl_read_reg_diag(ar, &address, - (u32 *) &data[count]); - if (status) - break; - } else { - status = ath6kl_write_reg_diag(ar, &address, - (u32 *) &data[count]); - if (status) - break; - } + if (WARN_ON(length % 4)) + return -EINVAL; + + for (count = 0; count < length / 4; count++, address += 4) { + ret = ath6kl_diag_write32(ar, address, buf[count]); + if (ret) + return ret; + } + + return 0; +} + +int ath6kl_read_fwlogs(struct ath6kl *ar) +{ + struct ath6kl_dbglog_hdr debug_hdr; + struct ath6kl_dbglog_buf debug_buf; + u32 address, length, dropped, firstbuf, debug_hdr_addr; + int ret = 0, loop; + u8 *buf; + + buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + address = TARG_VTOP(ar->target_type, + ath6kl_get_hi_item_addr(ar, + HI_ITEM(hi_dbglog_hdr))); + + ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); + if (ret) + goto out; + + /* Get the contents of the ring buffer */ + if (debug_hdr_addr == 0) { + ath6kl_warn("Invalid address for debug_hdr_addr\n"); + ret = -EINVAL; + goto out; } - return status; + address = TARG_VTOP(ar->target_type, debug_hdr_addr); + ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); + + address = TARG_VTOP(ar->target_type, + le32_to_cpu(debug_hdr.dbuf_addr)); + firstbuf = address; + dropped = le32_to_cpu(debug_hdr.dropped); + ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); + + loop = 100; + + do { + address = TARG_VTOP(ar->target_type, + le32_to_cpu(debug_buf.buffer_addr)); + length = le32_to_cpu(debug_buf.length); + + if (length != 0 && (le32_to_cpu(debug_buf.length) <= + le32_to_cpu(debug_buf.bufsize))) { + length = ALIGN(length, 4); + + ret = ath6kl_diag_read(ar, address, + buf, length); + if (ret) + goto out; + + ath6kl_debug_fwlog_event(ar, buf, length); + } + + address = TARG_VTOP(ar->target_type, + le32_to_cpu(debug_buf.next)); + ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); + if (ret) + goto out; + + loop--; + + if (WARN_ON(loop == 0)) { + ret = -ETIMEDOUT; + goto out; + } + } while (address != firstbuf); + +out: + kfree(buf); + + return ret; } +/* FIXME: move to a better place, target.h? */ +#define AR6003_RESET_CONTROL_ADDRESS 0x00004000 +#define AR6004_RESET_CONTROL_ADDRESS 0x00004000 + static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, bool wait_fot_compltn, bool cold_reset) { int status = 0; u32 address; - u32 data; + __le32 data; - if (target_type != TARGET_TYPE_AR6003) + if (target_type != TARGET_TYPE_AR6003 && + target_type != TARGET_TYPE_AR6004) return; - data = cold_reset ? RESET_CONTROL_COLD_RST : RESET_CONTROL_MBOX_RST; + data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : + cpu_to_le32(RESET_CONTROL_MBOX_RST); - address = RTC_BASE_ADDRESS; - status = ath6kl_write_reg_diag(ar, &address, &data); + switch (target_type) { + case TARGET_TYPE_AR6003: + address = AR6003_RESET_CONTROL_ADDRESS; + break; + case TARGET_TYPE_AR6004: + address = AR6004_RESET_CONTROL_ADDRESS; + break; + default: + address = AR6003_RESET_CONTROL_ADDRESS; + break; + } + + status = ath6kl_diag_write32(ar, address, data); if (status) ath6kl_err("failed to reset target\n"); @@ -411,68 +519,107 @@ static void ath6kl_install_static_wep_keys(struct ath6kl *ar) } } -static void ath6kl_connect_ap_mode(struct ath6kl *ar, u16 channel, u8 *bssid, - u16 listen_int, u16 beacon_int, - u8 assoc_resp_len, u8 *assoc_info) +void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel) { - struct net_device *dev = ar->net_dev; - struct station_info sinfo; struct ath6kl_req_key *ik; - enum crypto_type keyType = NONE_CRYPT; + int res; + u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; - if (memcmp(dev->dev_addr, bssid, ETH_ALEN) == 0) { - ik = &ar->ap_mode_bkey; + ik = &ar->ap_mode_bkey; - switch (ar->auth_mode) { - case NONE_AUTH: - if (ar->prwise_crypto == WEP_CRYPT) - ath6kl_install_static_wep_keys(ar); - break; - case WPA_PSK_AUTH: - case WPA2_PSK_AUTH: - case (WPA_PSK_AUTH|WPA2_PSK_AUTH): - switch (ik->ik_type) { - case ATH6KL_CIPHER_TKIP: - keyType = TKIP_CRYPT; - break; - case ATH6KL_CIPHER_AES_CCM: - keyType = AES_CRYPT; - break; - default: - goto skip_key; - } - ath6kl_wmi_addkey_cmd(ar->wmi, ik->ik_keyix, keyType, - GROUP_USAGE, ik->ik_keylen, - (u8 *)&ik->ik_keyrsc, - ik->ik_keydata, - KEY_OP_INIT_VAL, ik->ik_macaddr, - SYNC_BOTH_WMIFLAG); + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); + + switch (ar->auth_mode) { + case NONE_AUTH: + if (ar->prwise_crypto == WEP_CRYPT) + ath6kl_install_static_wep_keys(ar); + break; + case WPA_PSK_AUTH: + case WPA2_PSK_AUTH: + case (WPA_PSK_AUTH | WPA2_PSK_AUTH): + if (!ik->valid) break; + + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " + "the initial group key for AP mode\n"); + memset(key_rsc, 0, sizeof(key_rsc)); + res = ath6kl_wmi_addkey_cmd( + ar->wmi, ik->key_index, ik->key_type, + GROUP_USAGE, ik->key_len, key_rsc, ik->key, + KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); + if (res) { + ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " + "addkey failed: %d\n", res); } -skip_key: - set_bit(CONNECTED, &ar->flag); - return; + break; } - ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", - bssid, channel); + ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + set_bit(CONNECTED, &ar->flag); + netif_carrier_on(ar->net_dev); +} + +void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr, + u8 keymgmt, u8 ucipher, u8 auth, + u8 assoc_req_len, u8 *assoc_info) +{ + u8 *ies = NULL, *wpa_ie = NULL, *pos; + size_t ies_len = 0; + struct station_info sinfo; - ath6kl_add_new_sta(ar, bssid, channel, assoc_info, assoc_resp_len, - listen_int & 0xFF, beacon_int, - (listen_int >> 8) & 0xFF); + ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); + + if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { + struct ieee80211_mgmt *mgmt = + (struct ieee80211_mgmt *) assoc_info; + if (ieee80211_is_assoc_req(mgmt->frame_control) && + assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + + sizeof(mgmt->u.assoc_req)) { + ies = mgmt->u.assoc_req.variable; + ies_len = assoc_info + assoc_req_len - ies; + } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && + assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + + sizeof(mgmt->u.reassoc_req)) { + ies = mgmt->u.reassoc_req.variable; + ies_len = assoc_info + assoc_req_len - ies; + } + } + + pos = ies; + while (pos && pos + 1 < ies + ies_len) { + if (pos + 2 + pos[1] > ies + ies_len) + break; + if (pos[0] == WLAN_EID_RSN) + wpa_ie = pos; /* RSN IE */ + else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && + pos[1] >= 4 && + pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { + if (pos[5] == 0x01) + wpa_ie = pos; /* WPA IE */ + else if (pos[5] == 0x04) { + wpa_ie = pos; /* WPS IE */ + break; /* overrides WPA/RSN IE */ + } + } + pos += 2 + pos[1]; + } + + ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie, + wpa_ie ? 2 + wpa_ie[1] : 0, + keymgmt, ucipher, auth); /* send event to application */ memset(&sinfo, 0, sizeof(sinfo)); /* TODO: sinfo.generation */ - /* TODO: need to deliver (Re)AssocReq IEs somehow.. change in - * cfg80211 needed, e.g., by adding those into sinfo - */ - cfg80211_new_sta(ar->net_dev, bssid, &sinfo, GFP_KERNEL); - netif_wake_queue(ar->net_dev); + sinfo.assoc_req_ies = ies; + sinfo.assoc_req_ies_len = ies_len; + sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; - return; + cfg80211_new_sta(ar->net_dev, mac_addr, &sinfo, GFP_KERNEL); + + netif_wake_queue(ar->net_dev); } /* Functions for Tx credit handling */ @@ -779,6 +926,41 @@ void ath6kl_disconnect(struct ath6kl *ar) } } +void ath6kl_deep_sleep_enable(struct ath6kl *ar) +{ + switch (ar->sme_state) { + case SME_CONNECTING: + cfg80211_connect_result(ar->net_dev, ar->bssid, NULL, 0, + NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + break; + case SME_CONNECTED: + default: + /* + * FIXME: oddly enough smeState is in DISCONNECTED during + * suspend, why? Need to send disconnected event in that + * state. + */ + cfg80211_disconnected(ar->net_dev, 0, NULL, 0, GFP_KERNEL); + break; + } + + if (test_bit(CONNECTED, &ar->flag) || + test_bit(CONNECT_PEND, &ar->flag)) + ath6kl_wmi_disconnect_cmd(ar->wmi); + + ar->sme_state = SME_DISCONNECTED; + + /* disable scanning */ + if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, + 0, 0) != 0) + printk(KERN_WARNING "ath6kl: failed to disable scan " + "during suspend\n"); + + ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED); +} + /* WMI Event handlers */ static const char *get_hw_id_string(u32 id) @@ -819,17 +1001,20 @@ void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) set_bit(WMI_READY, &ar->flag); wake_up(&ar->event_wq); - ath6kl_info("hw %s fw %s\n", + ath6kl_info("hw %s fw %s%s\n", get_hw_id_string(ar->wdev->wiphy->hw_version), - ar->wdev->wiphy->fw_version); + ar->wdev->wiphy->fw_version, + test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); } void ath6kl_scan_complete_evt(struct ath6kl *ar, int status) { ath6kl_cfg80211_scan_complete_event(ar, status); - if (!ar->usr_bss_filter) + if (!ar->usr_bss_filter) { + clear_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + } ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); } @@ -842,13 +1027,6 @@ void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid, { unsigned long flags; - if (ar->nw_type == AP_NETWORK) { - ath6kl_connect_ap_mode(ar, channel, bssid, listen_int, - beacon_int, assoc_resp_len, - assoc_info); - return; - } - ath6kl_cfg80211_connect_event(ar, channel, bssid, listen_int, beacon_int, net_type, beacon_ie_len, @@ -880,8 +1058,10 @@ void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid, ar->next_ep_id = ENDPOINT_2; } - if (!ar->usr_bss_filter) - ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0); + if (!ar->usr_bss_filter) { + set_bit(CLEAR_BSSFILTER_ON_BEACON, &ar->flag); + ath6kl_wmi_bssfilter_cmd(ar->wmi, CURRENT_BSS_FILTER, 0); + } } void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast) @@ -915,26 +1095,11 @@ static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len) (struct wmi_target_stats *) ptr; struct target_stats *stats = &ar->target_stats; struct tkip_ccmp_stats *ccmp_stats; - struct bss *conn_bss = NULL; - struct cserv_stats *c_stats; u8 ac; if (len < sizeof(*tgt_stats)) return; - /* update the RSSI of the connected bss */ - if (test_bit(CONNECTED, &ar->flag)) { - conn_bss = ath6kl_wmi_find_node(ar->wmi, ar->bssid); - if (conn_bss) { - c_stats = &tgt_stats->cserv_stats; - conn_bss->ni_rssi = - a_sle16_to_cpu(c_stats->cs_ave_beacon_rssi); - conn_bss->ni_snr = - tgt_stats->cserv_stats.cs_ave_beacon_snr; - ath6kl_wmi_node_return(ar->wmi, conn_bss); - } - } - ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); @@ -1165,7 +1330,6 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, u8 assoc_resp_len, u8 *assoc_info, u16 prot_reason_status) { - struct bss *wmi_ssid_node = NULL; unsigned long flags; if (ar->nw_type == AP_NETWORK) { @@ -1188,7 +1352,10 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL); } - clear_bit(CONNECTED, &ar->flag); + if (memcmp(ar->net_dev->dev_addr, bssid, ETH_ALEN) == 0) { + memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list)); + clear_bit(CONNECTED, &ar->flag); + } return; } @@ -1222,33 +1389,6 @@ void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid, } } - if ((reason == NO_NETWORK_AVAIL) && test_bit(WMI_READY, &ar->flag)) { - ath6kl_wmi_node_free(ar->wmi, bssid); - - /* - * In case any other same SSID nodes are present remove it, - * since those nodes also not available now. - */ - do { - /* - * Find the nodes based on SSID and remove it - * - * Note: This case will not work out for - * Hidden-SSID - */ - wmi_ssid_node = ath6kl_wmi_find_ssid_node(ar->wmi, - ar->ssid, - ar->ssid_len, - false, - true); - - if (wmi_ssid_node) - ath6kl_wmi_node_free(ar->wmi, - wmi_ssid_node->ni_macaddr); - - } while (wmi_ssid_node); - } - /* update connect & link status atomically */ spin_lock_irqsave(&ar->lock, flags); clear_bit(CONNECTED, &ar->flag); @@ -1331,7 +1471,7 @@ void init_netdev(struct net_device *dev) dev->needed_headroom = ETH_HLEN; dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH - + WMI_MAX_TX_META_SZ; + + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; return; } |