diff options
Diffstat (limited to 'drivers/net/wireless/ti/wlcore/cmd.c')
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/cmd.c | 2045 |
1 files changed, 2045 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c new file mode 100644 index 00000000000..40dc30f4faa --- /dev/null +++ b/drivers/net/wireless/ti/wlcore/cmd.c @@ -0,0 +1,2045 @@ +/* + * This file is part of wl1271 + * + * Copyright (C) 2009-2010 Nokia Corporation + * + * Contact: Luciano Coelho <luciano.coelho@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/etherdevice.h> +#include <linux/ieee80211.h> +#include <linux/slab.h> + +#include "wlcore.h" +#include "debug.h" +#include "io.h" +#include "acx.h" +#include "wl12xx_80211.h" +#include "cmd.h" +#include "event.h" +#include "tx.h" +#include "hw_ops.h" + +#define WL1271_CMD_FAST_POLL_COUNT 50 +#define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20 + +/* + * send command to firmware + * + * @wl: wl struct + * @id: command id + * @buf: buffer containing the command, must work with dma + * @len: length of the buffer + * return the cmd status code on success. + */ +static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf, + size_t len, size_t res_len) +{ + struct wl1271_cmd_header *cmd; + unsigned long timeout; + u32 intr; + int ret; + u16 status; + u16 poll_count = 0; + + if (unlikely(wl->state == WLCORE_STATE_RESTARTING && + id != CMD_STOP_FWLOGGER)) + return -EIO; + + cmd = buf; + cmd->id = cpu_to_le16(id); + cmd->status = 0; + + WARN_ON(len % 4 != 0); + WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); + + ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); + if (ret < 0) + return ret; + + /* + * TODO: we just need this because one bit is in a different + * place. Is there any better way? + */ + ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); + if (ret < 0) + return ret; + + timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); + + ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); + if (ret < 0) + return ret; + + while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { + if (time_after(jiffies, timeout)) { + wl1271_error("command complete timeout"); + return -ETIMEDOUT; + } + + poll_count++; + if (poll_count < WL1271_CMD_FAST_POLL_COUNT) + udelay(10); + else + msleep(1); + + ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); + if (ret < 0) + return ret; + } + + /* read back the status code of the command */ + if (res_len == 0) + res_len = sizeof(struct wl1271_cmd_header); + + ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); + if (ret < 0) + return ret; + + status = le16_to_cpu(cmd->status); + + ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, + WL1271_ACX_INTR_CMD_COMPLETE); + if (ret < 0) + return ret; + + return status; +} + +/* + * send command to fw and return cmd status on success + * valid_rets contains a bitmap of allowed error codes + */ +int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf, size_t len, + size_t res_len, unsigned long valid_rets) +{ + int ret = __wlcore_cmd_send(wl, id, buf, len, res_len); + + if (ret < 0) + goto fail; + + /* success is always a valid status */ + valid_rets |= BIT(CMD_STATUS_SUCCESS); + + if (ret >= MAX_COMMAND_STATUS || + !test_bit(ret, &valid_rets)) { + wl1271_error("command execute failure %d", ret); + ret = -EIO; + goto fail; + } + return ret; +fail: + wl12xx_queue_recovery_work(wl); + return ret; +} +EXPORT_SYMBOL_GPL(wl1271_cmd_send); + +/* + * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS + * return 0 on success. + */ +int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, + size_t res_len) +{ + int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0); + + if (ret < 0) + return ret; + return 0; +} + +/* + * Poll the mailbox event field until any of the bits in the mask is set or a + * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) + */ +int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl, + u32 mask, bool *timeout) +{ + u32 *events_vector; + u32 event; + unsigned long timeout_time; + u16 poll_count = 0; + int ret = 0; + + *timeout = false; + + events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); + if (!events_vector) + return -ENOMEM; + + timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); + + do { + if (time_after(jiffies, timeout_time)) { + wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", + (int)mask); + *timeout = true; + goto out; + } + + poll_count++; + if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) + usleep_range(50, 51); + else + usleep_range(1000, 5000); + + /* read from both event fields */ + ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, + sizeof(*events_vector), false); + if (ret < 0) + goto out; + + event = *events_vector & mask; + + ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, + sizeof(*events_vector), false); + if (ret < 0) + goto out; + + event |= *events_vector & mask; + } while (!event); + +out: + kfree(events_vector); + return ret; +} +EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout); + +int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, + u8 *role_id) +{ + struct wl12xx_cmd_role_enable *cmd; + int ret; + + wl1271_debug(DEBUG_CMD, "cmd role enable"); + + if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) + return -EBUSY; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + /* get role id */ + cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); + if (cmd->role_id >= WL12XX_MAX_ROLES) { + ret = -EBUSY; + goto out_free; + } + + memcpy(cmd->mac_address, addr, ETH_ALEN); + cmd->role_type = role_type; + + ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role enable"); + goto out_free; + } + + __set_bit(cmd->role_id, wl->roles_map); + *role_id = cmd->role_id; + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) +{ + struct wl12xx_cmd_role_disable *cmd; + int ret; + + wl1271_debug(DEBUG_CMD, "cmd role disable"); + + if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) + return -ENOENT; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + cmd->role_id = *role_id; + + ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role disable"); + goto out_free; + } + + __clear_bit(*role_id, wl->roles_map); + *role_id = WL12XX_INVALID_ROLE_ID; + +out_free: + kfree(cmd); + +out: + return ret; +} + +static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid) +{ + if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX) + wl->session_ids[hlid] = 0; + + wl->session_ids[hlid]++; + + return wl->session_ids[hlid]; +} + +int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) +{ + unsigned long flags; + u8 link = find_first_zero_bit(wl->links_map, wl->num_links); + if (link >= wl->num_links) + return -EBUSY; + + wl->session_ids[link] = wlcore_get_new_session_id(wl, link); + + /* these bits are used by op_tx */ + spin_lock_irqsave(&wl->wl_lock, flags); + __set_bit(link, wl->links_map); + __set_bit(link, wlvif->links_map); + spin_unlock_irqrestore(&wl->wl_lock, flags); + + /* + * take the last "freed packets" value from the current FW status. + * on recovery, we might not have fw_status yet, and + * tx_lnk_free_pkts will be NULL. check for it. + */ + if (wl->fw_status->counters.tx_lnk_free_pkts) + wl->links[link].prev_freed_pkts = + wl->fw_status->counters.tx_lnk_free_pkts[link]; + wl->links[link].wlvif = wlvif; + + /* + * Take saved value for total freed packets from wlvif, in case this is + * recovery/resume + */ + if (wlvif->bss_type != BSS_TYPE_AP_BSS) + wl->links[link].total_freed_pkts = wlvif->total_freed_pkts; + + *hlid = link; + + wl->active_link_count++; + return 0; +} + +void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) +{ + unsigned long flags; + + if (*hlid == WL12XX_INVALID_LINK_ID) + return; + + /* these bits are used by op_tx */ + spin_lock_irqsave(&wl->wl_lock, flags); + __clear_bit(*hlid, wl->links_map); + __clear_bit(*hlid, wlvif->links_map); + spin_unlock_irqrestore(&wl->wl_lock, flags); + + wl->links[*hlid].allocated_pkts = 0; + wl->links[*hlid].prev_freed_pkts = 0; + wl->links[*hlid].ba_bitmap = 0; + memset(wl->links[*hlid].addr, 0, ETH_ALEN); + + /* + * At this point op_tx() will not add more packets to the queues. We + * can purge them. + */ + wl1271_tx_reset_link_queues(wl, *hlid); + wl->links[*hlid].wlvif = NULL; + + if (wlvif->bss_type == BSS_TYPE_STA_BSS || + (wlvif->bss_type == BSS_TYPE_AP_BSS && + *hlid == wlvif->ap.bcast_hlid)) { + /* + * save the total freed packets in the wlvif, in case this is + * recovery or suspend + */ + wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts; + + /* + * increment the initial seq number on recovery to account for + * transmitted packets that we haven't yet got in the FW status + */ + if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) + wlvif->total_freed_pkts += + WL1271_TX_SQN_POST_RECOVERY_PADDING; + } + + wl->links[*hlid].total_freed_pkts = 0; + + *hlid = WL12XX_INVALID_LINK_ID; + wl->active_link_count--; + WARN_ON_ONCE(wl->active_link_count < 0); +} + +static u8 wlcore_get_native_channel_type(u8 nl_channel_type) +{ + switch (nl_channel_type) { + case NL80211_CHAN_NO_HT: + return WLCORE_CHAN_NO_HT; + case NL80211_CHAN_HT20: + return WLCORE_CHAN_HT20; + case NL80211_CHAN_HT40MINUS: + return WLCORE_CHAN_HT40MINUS; + case NL80211_CHAN_HT40PLUS: + return WLCORE_CHAN_HT40PLUS; + default: + WARN_ON(1); + return WLCORE_CHAN_NO_HT; + } +} + +static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, + struct wl12xx_vif *wlvif, + enum ieee80211_band band, + int channel) +{ + struct wl12xx_cmd_role_start *cmd; + int ret; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); + + cmd->role_id = wlvif->dev_role_id; + if (band == IEEE80211_BAND_5GHZ) + cmd->band = WLCORE_BAND_5GHZ; + cmd->channel = channel; + + if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { + ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); + if (ret) + goto out_free; + } + cmd->device.hlid = wlvif->dev_hlid; + cmd->device.session = wl->session_ids[wlvif->dev_hlid]; + + wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", + cmd->role_id, cmd->device.hlid, cmd->device.session); + + ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role enable"); + goto err_hlid; + } + + goto out_free; + +err_hlid: + /* clear links on error */ + wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, + struct wl12xx_vif *wlvif) +{ + struct wl12xx_cmd_role_stop *cmd; + int ret; + + if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) + return -EINVAL; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role stop dev"); + + cmd->role_id = wlvif->dev_role_id; + cmd->disc_type = DISCONNECT_IMMEDIATE; + cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); + + ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role stop"); + goto out_free; + } + + wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct wl12xx_cmd_role_start *cmd; + u32 supported_rates; + int ret; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); + + cmd->role_id = wlvif->role_id; + if (wlvif->band == IEEE80211_BAND_5GHZ) + cmd->band = WLCORE_BAND_5GHZ; + cmd->channel = wlvif->channel; + cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); + cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); + cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; + cmd->sta.ssid_len = wlvif->ssid_len; + memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); + memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); + + supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | + wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); + if (wlvif->p2p) + supported_rates &= ~CONF_TX_CCK_RATES; + + cmd->sta.local_rates = cpu_to_le32(supported_rates); + + cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); + + if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { + ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); + if (ret) + goto out_free; + } + cmd->sta.hlid = wlvif->sta.hlid; + cmd->sta.session = wl->session_ids[wlvif->sta.hlid]; + /* + * We don't have the correct remote rates in this stage. The + * rates will be reconfigured later, after association, if the + * firmware supports ACX_PEER_CAP. Otherwise, there's nothing + * we can do, so use all supported_rates here. + */ + cmd->sta.remote_rates = cpu_to_le32(supported_rates); + + wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " + "basic_rate_set: 0x%x, remote_rates: 0x%x", + wlvif->role_id, cmd->sta.hlid, cmd->sta.session, + wlvif->basic_rate_set, wlvif->rate_set); + + ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role start sta"); + goto err_hlid; + } + + wlvif->sta.role_chan_type = wlvif->channel_type; + goto out_free; + +err_hlid: + /* clear links on error. */ + wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +/* use this function to stop ibss as well */ +int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct wl12xx_cmd_role_stop *cmd; + int ret; + + if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) + return -EINVAL; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); + + cmd->role_id = wlvif->role_id; + cmd->disc_type = DISCONNECT_IMMEDIATE; + cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); + + ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role stop sta"); + goto out_free; + } + + wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct wl12xx_cmd_role_start *cmd; + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + u32 supported_rates; + int ret; + + wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); + + /* trying to use hidden SSID with an old hostapd version */ + if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { + wl1271_error("got a null SSID from beacon/bss"); + ret = -EINVAL; + goto out; + } + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); + if (ret < 0) + goto out_free; + + ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); + if (ret < 0) + goto out_free_global; + + /* use the previous security seq, if this is a recovery/resume */ + wl->links[wlvif->ap.bcast_hlid].total_freed_pkts = + wlvif->total_freed_pkts; + + cmd->role_id = wlvif->role_id; + cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); + cmd->ap.bss_index = WL1271_AP_BSS_INDEX; + cmd->ap.global_hlid = wlvif->ap.global_hlid; + cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; + cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid]; + cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid]; + cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); + cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); + cmd->ap.dtim_interval = bss_conf->dtim_period; + cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; + /* FIXME: Change when adding DFS */ + cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ + cmd->ap.wmm = wlvif->wmm_enabled; + cmd->channel = wlvif->channel; + cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); + + if (!bss_conf->hidden_ssid) { + /* take the SSID from the beacon for backward compatibility */ + cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; + cmd->ap.ssid_len = wlvif->ssid_len; + memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); + } else { + cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; + cmd->ap.ssid_len = bss_conf->ssid_len; + memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); + } + + supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | + wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); + if (wlvif->p2p) + supported_rates &= ~CONF_TX_CCK_RATES; + + wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", + supported_rates); + + cmd->ap.local_rates = cpu_to_le32(supported_rates); + + switch (wlvif->band) { + case IEEE80211_BAND_2GHZ: + cmd->band = WLCORE_BAND_2_4GHZ; + break; + case IEEE80211_BAND_5GHZ: + cmd->band = WLCORE_BAND_5GHZ; + break; + default: + wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); + cmd->band = WLCORE_BAND_2_4GHZ; + break; + } + + ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role start ap"); + goto out_free_bcast; + } + + goto out_free; + +out_free_bcast: + wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); + +out_free_global: + wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct wl12xx_cmd_role_stop *cmd; + int ret; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); + + cmd->role_id = wlvif->role_id; + + ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role stop ap"); + goto out_free; + } + + wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); + wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct wl12xx_cmd_role_start *cmd; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + int ret; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); + + cmd->role_id = wlvif->role_id; + if (wlvif->band == IEEE80211_BAND_5GHZ) + cmd->band = WLCORE_BAND_5GHZ; + cmd->channel = wlvif->channel; + cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); + cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); + cmd->ibss.dtim_interval = bss_conf->dtim_period; + cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; + cmd->ibss.ssid_len = wlvif->ssid_len; + memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); + memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); + cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); + + if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { + ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); + if (ret) + goto out_free; + } + cmd->ibss.hlid = wlvif->sta.hlid; + cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); + + wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " + "basic_rate_set: 0x%x, remote_rates: 0x%x", + wlvif->role_id, cmd->sta.hlid, cmd->sta.session, + wlvif->basic_rate_set, wlvif->rate_set); + + wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", + vif->bss_conf.bssid); + + ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd role enable"); + goto err_hlid; + } + + goto out_free; + +err_hlid: + /* clear links on error. */ + wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); + +out_free: + kfree(cmd); + +out: + return ret; +} + + +/** + * send test command to firmware + * + * @wl: wl struct + * @buf: buffer containing the command, with all headers, must work with dma + * @len: length of the buffer + * @answer: is answer needed + */ +int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) +{ + int ret; + size_t res_len = 0; + + wl1271_debug(DEBUG_CMD, "cmd test"); + + if (answer) + res_len = buf_len; + + ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); + + if (ret < 0) { + wl1271_warning("TEST command failed"); + return ret; + } + + return ret; +} +EXPORT_SYMBOL_GPL(wl1271_cmd_test); + +/** + * read acx from firmware + * + * @wl: wl struct + * @id: acx id + * @buf: buffer for the response, including all headers, must work with dma + * @len: length of buf + */ +int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, + size_t cmd_len, size_t res_len) +{ + struct acx_header *acx = buf; + int ret; + + wl1271_debug(DEBUG_CMD, "cmd interrogate"); + + acx->id = cpu_to_le16(id); + + /* response payload length, does not include any headers */ + acx->len = cpu_to_le16(res_len - sizeof(*acx)); + + ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len); + if (ret < 0) + wl1271_error("INTERROGATE command failed"); + + return ret; +} + +/** + * write acx value to firmware + * + * @wl: wl struct + * @id: acx id + * @buf: buffer containing acx, including all headers, must work with dma + * @len: length of buf + * @valid_rets: bitmap of valid cmd status codes (i.e. return values). + * return the cmd status on success. + */ +int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, + size_t len, unsigned long valid_rets) +{ + struct acx_header *acx = buf; + int ret; + + wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); + + acx->id = cpu_to_le16(id); + + /* payload length, does not include any headers */ + acx->len = cpu_to_le16(len - sizeof(*acx)); + + ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, + valid_rets); + if (ret < 0) { + wl1271_warning("CONFIGURE command NOK"); + return ret; + } + + return ret; +} + +/* + * wrapper for wlcore_cmd_configure that accepts only success status. + * return 0 on success + */ +int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) +{ + int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); + + if (ret < 0) + return ret; + return 0; +} +EXPORT_SYMBOL_GPL(wl1271_cmd_configure); + +int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) +{ + struct cmd_enabledisable_path *cmd; + int ret; + u16 cmd_rx, cmd_tx; + + wl1271_debug(DEBUG_CMD, "cmd data path"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + /* the channel here is only used for calibration, so hardcoded to 1 */ + cmd->channel = 1; + + if (enable) { + cmd_rx = CMD_ENABLE_RX; + cmd_tx = CMD_ENABLE_TX; + } else { + cmd_rx = CMD_DISABLE_RX; + cmd_tx = CMD_DISABLE_TX; + } + + ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("rx %s cmd for channel %d failed", + enable ? "start" : "stop", cmd->channel); + goto out; + } + + wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", + enable ? "start" : "stop", cmd->channel); + + ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("tx %s cmd for channel %d failed", + enable ? "start" : "stop", cmd->channel); + goto out; + } + + wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", + enable ? "start" : "stop", cmd->channel); + +out: + kfree(cmd); + return ret; +} +EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); + +int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u8 ps_mode, u16 auto_ps_timeout) +{ + struct wl1271_cmd_ps_params *ps_params = NULL; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd set ps mode"); + + ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); + if (!ps_params) { + ret = -ENOMEM; + goto out; + } + + ps_params->role_id = wlvif->role_id; + ps_params->ps_mode = ps_mode; + ps_params->auto_ps_timeout = auto_ps_timeout; + + ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, + sizeof(*ps_params), 0); + if (ret < 0) { + wl1271_error("cmd set_ps_mode failed"); + goto out; + } + +out: + kfree(ps_params); + return ret; +} + +int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, + u16 template_id, void *buf, size_t buf_len, + int index, u32 rates) +{ + struct wl1271_cmd_template_set *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", + template_id, role_id); + + WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); + buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + /* during initialization wlvif is NULL */ + cmd->role_id = role_id; + cmd->len = cpu_to_le16(buf_len); + cmd->template_type = template_id; + cmd->enabled_rates = cpu_to_le32(rates); + cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; + cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; + cmd->index = index; + + if (buf) + memcpy(cmd->template_data, buf, buf_len); + + ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_warning("cmd set_template failed: %d", ret); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct sk_buff *skb = NULL; + int size; + void *ptr; + int ret = -ENOMEM; + + + if (wlvif->bss_type == BSS_TYPE_IBSS) { + size = sizeof(struct wl12xx_null_data_template); + ptr = NULL; + } else { + skb = ieee80211_nullfunc_get(wl->hw, + wl12xx_wlvif_to_vif(wlvif)); + if (!skb) + goto out; + size = skb->len; + ptr = skb->data; + } + + ret = wl1271_cmd_template_set(wl, wlvif->role_id, + CMD_TEMPL_NULL_DATA, ptr, size, 0, + wlvif->basic_rate); + +out: + dev_kfree_skb(skb); + if (ret) + wl1271_warning("cmd buld null data failed %d", ret); + + return ret; + +} + +int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, + struct wl12xx_vif *wlvif) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct sk_buff *skb = NULL; + int ret = -ENOMEM; + + skb = ieee80211_nullfunc_get(wl->hw, vif); + if (!skb) + goto out; + + ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, + skb->data, skb->len, + wlvif->sta.klv_template_id, + wlvif->basic_rate); + +out: + dev_kfree_skb(skb); + if (ret) + wl1271_warning("cmd build klv null data failed %d", ret); + + return ret; + +} + +int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u16 aid) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct sk_buff *skb; + int ret = 0; + + skb = ieee80211_pspoll_get(wl->hw, vif); + if (!skb) + goto out; + + ret = wl1271_cmd_template_set(wl, wlvif->role_id, + CMD_TEMPL_PS_POLL, skb->data, + skb->len, 0, wlvif->basic_rate_set); + +out: + dev_kfree_skb(skb); + return ret; +} + +int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u8 role_id, u8 band, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len, bool sched_scan) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct sk_buff *skb; + int ret; + u32 rate; + u16 template_id_2_4 = wl->scan_templ_id_2_4; + u16 template_id_5 = wl->scan_templ_id_5; + + wl1271_debug(DEBUG_SCAN, "build probe request band %d", band); + + skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, + ie_len); + if (!skb) { + ret = -ENOMEM; + goto out; + } + if (ie_len) + memcpy(skb_put(skb, ie_len), ie, ie_len); + + if (sched_scan && + (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { + template_id_2_4 = wl->sched_scan_templ_id_2_4; + template_id_5 = wl->sched_scan_templ_id_5; + } + + rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); + if (band == IEEE80211_BAND_2GHZ) + ret = wl1271_cmd_template_set(wl, role_id, + template_id_2_4, + skb->data, skb->len, 0, rate); + else + ret = wl1271_cmd_template_set(wl, role_id, + template_id_5, + skb->data, skb->len, 0, rate); + +out: + dev_kfree_skb(skb); + return ret; +} +EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); + +struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, + struct wl12xx_vif *wlvif, + struct sk_buff *skb) +{ + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + int ret; + u32 rate; + + if (!skb) + skb = ieee80211_ap_probereq_get(wl->hw, vif); + if (!skb) + goto out; + + wl1271_debug(DEBUG_SCAN, "set ap probe request template"); + + rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); + if (wlvif->band == IEEE80211_BAND_2GHZ) + ret = wl1271_cmd_template_set(wl, wlvif->role_id, + CMD_TEMPL_CFG_PROBE_REQ_2_4, + skb->data, skb->len, 0, rate); + else + ret = wl1271_cmd_template_set(wl, wlvif->role_id, + CMD_TEMPL_CFG_PROBE_REQ_5, + skb->data, skb->len, 0, rate); + + if (ret < 0) + wl1271_error("Unable to set ap probe request template."); + +out: + return skb; +} + +int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + int ret, extra = 0; + u16 fc; + struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + struct sk_buff *skb; + struct wl12xx_arp_rsp_template *tmpl; + struct ieee80211_hdr_3addr *hdr; + struct arphdr *arp_hdr; + + skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + + WL1271_EXTRA_SPACE_MAX); + if (!skb) { + wl1271_error("failed to allocate buffer for arp rsp template"); + return -ENOMEM; + } + + skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); + + tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); + memset(tmpl, 0, sizeof(*tmpl)); + + /* llc layer */ + memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); + tmpl->llc_type = cpu_to_be16(ETH_P_ARP); + + /* arp header */ + arp_hdr = &tmpl->arp_hdr; + arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); + arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); + arp_hdr->ar_hln = ETH_ALEN; + arp_hdr->ar_pln = 4; + arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); + + /* arp payload */ + memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); + tmpl->sender_ip = wlvif->ip_addr; + + /* encryption space */ + switch (wlvif->encryption_type) { + case KEY_TKIP: + if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) + extra = WL1271_EXTRA_SPACE_TKIP; + break; + case KEY_AES: + extra = WL1271_EXTRA_SPACE_AES; + break; + case KEY_NONE: + case KEY_WEP: + case KEY_GEM: + extra = 0; + break; + default: + wl1271_warning("Unknown encryption type: %d", + wlvif->encryption_type); + ret = -EINVAL; + goto out; + } + + if (extra) { + u8 *space = skb_push(skb, extra); + memset(space, 0, extra); + } + + /* QoS header - BE */ + if (wlvif->sta.qos) + memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); + + /* mac80211 header */ + hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); + memset(hdr, 0, sizeof(*hdr)); + fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; + if (wlvif->sta.qos) + fc |= IEEE80211_STYPE_QOS_DATA; + else + fc |= IEEE80211_STYPE_DATA; + if (wlvif->encryption_type != KEY_NONE) + fc |= IEEE80211_FCTL_PROTECTED; + + hdr->frame_control = cpu_to_le16(fc); + memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); + memcpy(hdr->addr2, vif->addr, ETH_ALEN); + memset(hdr->addr3, 0xff, ETH_ALEN); + + ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, + skb->data, skb->len, 0, + wlvif->basic_rate); +out: + dev_kfree_skb(skb); + return ret; +} + +int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) +{ + struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); + struct ieee80211_qos_hdr template; + + memset(&template, 0, sizeof(template)); + + memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); + memcpy(template.addr2, vif->addr, ETH_ALEN); + memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); + + template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_QOS_NULLFUNC | + IEEE80211_FCTL_TODS); + + /* FIXME: not sure what priority to use here */ + template.qos_ctrl = cpu_to_le16(0); + + return wl1271_cmd_template_set(wl, wlvif->role_id, + CMD_TEMPL_QOS_NULL_DATA, &template, + sizeof(template), 0, + wlvif->basic_rate); +} + +int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) +{ + struct wl1271_cmd_set_keys *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->hlid = hlid; + cmd->key_id = id; + cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; + cmd->key_action = cpu_to_le16(KEY_SET_ID); + cmd->key_type = KEY_WEP; + + ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_warning("cmd set_default_wep_key failed: %d", ret); + goto out; + } + +out: + kfree(cmd); + + return ret; +} + +int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u16 action, u8 id, u8 key_type, + u8 key_size, const u8 *key, const u8 *addr, + u32 tx_seq_32, u16 tx_seq_16) +{ + struct wl1271_cmd_set_keys *cmd; + int ret = 0; + + /* hlid might have already been deleted */ + if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) + return 0; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->hlid = wlvif->sta.hlid; + + if (key_type == KEY_WEP) + cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; + else if (is_broadcast_ether_addr(addr)) + cmd->lid_key_type = BROADCAST_LID_TYPE; + else + cmd->lid_key_type = UNICAST_LID_TYPE; + + cmd->key_action = cpu_to_le16(action); + cmd->key_size = key_size; + cmd->key_type = key_type; + + cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); + cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); + + cmd->key_id = id; + + if (key_type == KEY_TKIP) { + /* + * We get the key in the following form: + * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) + * but the target is expecting: + * TKIP - RX MIC - TX MIC + */ + memcpy(cmd->key, key, 16); + memcpy(cmd->key + 16, key + 24, 8); + memcpy(cmd->key + 24, key + 16, 8); + + } else { + memcpy(cmd->key, key, key_size); + } + + wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); + + ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_warning("could not set keys"); + goto out; + } + +out: + kfree(cmd); + + return ret; +} + +/* + * TODO: merge with sta/ibss into 1 set_key function. + * note there are slight diffs + */ +int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u16 action, u8 id, u8 key_type, + u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, + u16 tx_seq_16) +{ + struct wl1271_cmd_set_keys *cmd; + int ret = 0; + u8 lid_type; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + if (hlid == wlvif->ap.bcast_hlid) { + if (key_type == KEY_WEP) + lid_type = WEP_DEFAULT_LID_TYPE; + else + lid_type = BROADCAST_LID_TYPE; + } else { + lid_type = UNICAST_LID_TYPE; + } + + wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" + " hlid: %d", (int)action, (int)id, (int)lid_type, + (int)key_type, (int)hlid); + + cmd->lid_key_type = lid_type; + cmd->hlid = hlid; + cmd->key_action = cpu_to_le16(action); + cmd->key_size = key_size; + cmd->key_type = key_type; + cmd->key_id = id; + cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); + cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); + + if (key_type == KEY_TKIP) { + /* + * We get the key in the following form: + * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) + * but the target is expecting: + * TKIP - RX MIC - TX MIC + */ + memcpy(cmd->key, key, 16); + memcpy(cmd->key + 16, key + 24, 8); + memcpy(cmd->key + 24, key + 16, 8); + } else { + memcpy(cmd->key, key, key_size); + } + + wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); + + ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_warning("could not set ap keys"); + goto out; + } + +out: + kfree(cmd); + return ret; +} + +int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u8 hlid) +{ + struct wl12xx_cmd_set_peer_state *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->hlid = hlid; + cmd->state = WL1271_CMD_STA_STATE_CONNECTED; + + /* wmm param is valid only for station role */ + if (wlvif->bss_type == BSS_TYPE_STA_BSS) + cmd->wmm = wlvif->wmm_enabled; + + ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send set peer state command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, + struct ieee80211_sta *sta, u8 hlid) +{ + struct wl12xx_cmd_add_peer *cmd; + int i, ret; + u32 sta_rates; + + wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + memcpy(cmd->addr, sta->addr, ETH_ALEN); + cmd->bss_index = WL1271_AP_BSS_INDEX; + cmd->aid = sta->aid; + cmd->hlid = hlid; + cmd->sp_len = sta->max_sp; + cmd->wmm = sta->wme ? 1 : 0; + cmd->session_id = wl->session_ids[hlid]; + cmd->role_id = wlvif->role_id; + + for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) + if (sta->wme && (sta->uapsd_queues & BIT(i))) + cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = + WL1271_PSD_UPSD_TRIGGER; + else + cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = + WL1271_PSD_LEGACY; + + + sta_rates = sta->supp_rates[wlvif->band]; + if (sta->ht_cap.ht_supported) + sta_rates |= + (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | + (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); + + cmd->supported_rates = + cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, + wlvif->band)); + + wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", + cmd->supported_rates, sta->uapsd_queues); + + ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd add peer"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u8 hlid) +{ + struct wl12xx_cmd_remove_peer *cmd; + int ret; + bool timeout = false; + + wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->hlid = hlid; + /* We never send a deauth, mac80211 is in charge of this */ + cmd->reason_opcode = 0; + cmd->send_deauth_flag = 0; + cmd->role_id = wlvif->role_id; + + ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to initiate cmd remove peer"); + goto out_free; + } + + ret = wl->ops->wait_for_event(wl, + WLCORE_EVENT_PEER_REMOVE_COMPLETE, + &timeout); + + /* + * We are ok with a timeout here. The event is sometimes not sent + * due to a firmware bug. In case of another error (like SDIO timeout) + * queue a recovery. + */ + if (ret) + wl12xx_queue_recovery_work(wl); + +out_free: + kfree(cmd); + +out: + return ret; +} + +static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch) +{ + /* + * map the given band/channel to the respective predefined + * bit expected by the fw + */ + switch (band) { + case IEEE80211_BAND_2GHZ: + /* channels 1..14 are mapped to 0..13 */ + if (ch >= 1 && ch <= 14) + return ch - 1; + break; + case IEEE80211_BAND_5GHZ: + switch (ch) { + case 8 ... 16: + /* channels 8,12,16 are mapped to 18,19,20 */ + return 18 + (ch-8)/4; + case 34 ... 48: + /* channels 34,36..48 are mapped to 21..28 */ + return 21 + (ch-34)/2; + case 52 ... 64: + /* channels 52,56..64 are mapped to 29..32 */ + return 29 + (ch-52)/4; + case 100 ... 140: + /* channels 100,104..140 are mapped to 33..43 */ + return 33 + (ch-100)/4; + case 149 ... 165: + /* channels 149,153..165 are mapped to 44..48 */ + return 44 + (ch-149)/4; + default: + break; + } + break; + default: + break; + } + + wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch); + return -1; +} + +void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, + enum ieee80211_band band) +{ + int ch_bit_idx = 0; + + if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) + return; + + ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); + + if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) + set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending); +} + +int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) +{ + struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; + int ret = 0, i, b, ch_bit_idx; + struct ieee80211_channel *channel; + u32 tmp_ch_bitmap[2]; + u16 ch; + struct wiphy *wiphy = wl->hw->wiphy; + struct ieee80211_supported_band *band; + bool timeout = false; + + if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) + return 0; + + wl1271_debug(DEBUG_CMD, "cmd reg domain config"); + + memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap)); + + for (b = IEEE80211_BAND_2GHZ; b <= IEEE80211_BAND_5GHZ; b++) { + band = wiphy->bands[b]; + for (i = 0; i < band->n_channels; i++) { + channel = &band->channels[i]; + ch = channel->hw_value; + + if (channel->flags & (IEEE80211_CHAN_DISABLED | + IEEE80211_CHAN_RADAR | + IEEE80211_CHAN_NO_IR)) + continue; + + ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); + if (ch_bit_idx < 0) + continue; + + set_bit(ch_bit_idx, (long *)tmp_ch_bitmap); + } + } + + tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0]; + tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1]; + + if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) + goto out; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]); + cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]); + + wl1271_debug(DEBUG_CMD, + "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", + cmd->ch_bit_map1, cmd->ch_bit_map2); + + ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send reg domain dfs config"); + goto out; + } + + ret = wl->ops->wait_for_event(wl, + WLCORE_EVENT_DFS_CONFIG_COMPLETE, + &timeout); + if (ret < 0 || timeout) { + wl1271_error("reg domain conf %serror", + timeout ? "completion " : ""); + ret = timeout ? -ETIMEDOUT : ret; + goto out; + } + + memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); + memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); + +out: + kfree(cmd); + return ret; +} + +int wl12xx_cmd_config_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_config_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->logger_mode = wl->conf.fwlog.mode; + cmd->log_severity = wl->conf.fwlog.severity; + cmd->timestamp = wl->conf.fwlog.timestamp; + cmd->output = wl->conf.fwlog.output; + cmd->threshold = wl->conf.fwlog.threshold; + + ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send config firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_start_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_start_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send start firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_stop_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send stop firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, + u8 role_id, enum ieee80211_band band, u8 channel) +{ + struct wl12xx_cmd_roc *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); + + if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) + return -EINVAL; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->role_id = role_id; + cmd->channel = channel; + switch (band) { + case IEEE80211_BAND_2GHZ: + cmd->band = WLCORE_BAND_2_4GHZ; + break; + case IEEE80211_BAND_5GHZ: + cmd->band = WLCORE_BAND_5GHZ; + break; + default: + wl1271_error("roc - unknown band: %d", (int)wlvif->band); + ret = -EINVAL; + goto out_free; + } + + + ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send ROC command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) +{ + struct wl12xx_cmd_croc *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + cmd->role_id = role_id; + + ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, + sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send ROC command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, + enum ieee80211_band band, u8 channel) +{ + int ret = 0; + + if (WARN_ON(test_bit(role_id, wl->roc_map))) + return 0; + + ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); + if (ret < 0) + goto out; + + __set_bit(role_id, wl->roc_map); +out: + return ret; +} + +int wl12xx_croc(struct wl1271 *wl, u8 role_id) +{ + int ret = 0; + + if (WARN_ON(!test_bit(role_id, wl->roc_map))) + return 0; + + ret = wl12xx_cmd_croc(wl, role_id); + if (ret < 0) + goto out; + + __clear_bit(role_id, wl->roc_map); + + /* + * Rearm the tx watchdog when removing the last ROC. This prevents + * recoveries due to just finished ROCs - when Tx hasn't yet had + * a chance to get out. + */ + if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) + wl12xx_rearm_tx_watchdog_locked(wl); +out: + return ret; +} + +int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + struct wl12xx_cmd_stop_channel_switch *cmd; + int ret; + + wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->role_id = wlvif->role_id; + + ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to stop channel switch command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +/* start dev role and roc on its channel */ +int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, + enum ieee80211_band band, int channel) +{ + int ret; + + if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || + wlvif->bss_type == BSS_TYPE_IBSS))) + return -EINVAL; + + ret = wl12xx_cmd_role_enable(wl, + wl12xx_wlvif_to_vif(wlvif)->addr, + WL1271_ROLE_DEVICE, + &wlvif->dev_role_id); + if (ret < 0) + goto out; + + ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); + if (ret < 0) + goto out_disable; + + ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); + if (ret < 0) + goto out_stop; + + return 0; + +out_stop: + wl12xx_cmd_role_stop_dev(wl, wlvif); +out_disable: + wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); +out: + return ret; +} + +/* croc dev hlid, and stop the role */ +int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) +{ + int ret; + + if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || + wlvif->bss_type == BSS_TYPE_IBSS))) + return -EINVAL; + + /* flush all pending packets */ + ret = wlcore_tx_work_locked(wl); + if (ret < 0) + goto out; + + if (test_bit(wlvif->dev_role_id, wl->roc_map)) { + ret = wl12xx_croc(wl, wlvif->dev_role_id); + if (ret < 0) + goto out; + } + + ret = wl12xx_cmd_role_stop_dev(wl, wlvif); + if (ret < 0) + goto out; + + ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); + if (ret < 0) + goto out; + +out: + return ret; +} |