From 8a279d5b4dc128a4fcc3f8c545603adbce59bcfa Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Mon, 2 Jul 2012 19:32:33 -0700 Subject: [PATCH] mwifiex: add set_antenna handler support This enables user to set mode of Tx/Rx path using "iw set antenna" command. For non MIMO chips, the command will be used for selecting specific antenna or configuring antenna diversity mode. Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 40 ++++++++++++++++++++++ drivers/net/wireless/mwifiex/fw.h | 21 ++++++++++++ drivers/net/wireless/mwifiex/ioctl.h | 5 +++ drivers/net/wireless/mwifiex/sta_cmd.c | 37 ++++++++++++++++++++ drivers/net/wireless/mwifiex/sta_cmdresp.c | 30 ++++++++++++++++ 5 files changed, 133 insertions(+) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 2aeb97428669..6c57e832ae83 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -941,6 +941,42 @@ static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, return 0; } +static int +mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) +{ + struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); + struct mwifiex_private *priv = mwifiex_get_priv(adapter, + MWIFIEX_BSS_ROLE_ANY); + struct mwifiex_ds_ant_cfg ant_cfg; + + if (!tx_ant || !rx_ant) + return -EOPNOTSUPP; + + if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { + /* Not a MIMO chip. User should provide specific antenna number + * for Tx/Rx path or enable all antennas for diversity + */ + if (tx_ant != rx_ant) + return -EOPNOTSUPP; + + if ((tx_ant & (tx_ant - 1)) && + (tx_ant != BIT(adapter->number_of_antenna) - 1)) + return -EOPNOTSUPP; + + if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && + (priv->adapter->number_of_antenna > 1)) { + tx_ant = RF_ANTENNA_AUTO; + rx_ant = RF_ANTENNA_AUTO; + } + } + + ant_cfg.tx_ant = tx_ant; + ant_cfg.rx_ant = rx_ant; + + return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA, + HostCmd_ACT_GEN_SET, 0, &ant_cfg); +} + /* cfg80211 operation handler for stop ap. * Function stops BSS running at uAP interface. */ @@ -1726,6 +1762,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = { .stop_ap = mwifiex_cfg80211_stop_ap, .change_beacon = mwifiex_cfg80211_change_beacon, .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, + .set_antenna = mwifiex_cfg80211_set_antenna, }; /* @@ -1778,6 +1815,9 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; + wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; + wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; + /* Reserve space for mwifiex specific private data for BSS */ wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h index ffb6cdfdb797..14e985d01dee 100644 --- a/drivers/net/wireless/mwifiex/fw.h +++ b/drivers/net/wireless/mwifiex/fw.h @@ -227,6 +227,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER { #define HostCmd_CMD_PMIC_REG_ACCESS 0x00ad #define HostCmd_CMD_802_11_RF_CHANNEL 0x001d #define HostCmd_CMD_RF_TX_PWR 0x001e +#define HostCmd_CMD_RF_ANTENNA 0x0020 #define HostCmd_CMD_802_11_DEAUTHENTICATE 0x0024 #define HostCmd_CMD_MAC_CONTROL 0x0028 #define HostCmd_CMD_802_11_AD_HOC_START 0x002b @@ -322,6 +323,12 @@ enum ENH_PS_MODES { #define HostCmd_BSS_TYPE_MASK 0xf000 +#define HostCmd_ACT_SET_RX 0x0001 +#define HostCmd_ACT_SET_TX 0x0002 +#define HostCmd_ACT_SET_BOTH 0x0003 + +#define RF_ANTENNA_AUTO 0xFFFF + #define HostCmd_SET_SEQ_NO_BSS_INFO(seq, num, type) { \ (((seq) & 0x00ff) | \ (((num) & 0x000f) << 8)) | \ @@ -884,6 +891,18 @@ struct host_cmd_ds_rf_tx_pwr { u8 min_power; } __packed; +struct host_cmd_ds_rf_ant_mimo { + __le16 action_tx; + __le16 tx_ant_mode; + __le16 action_rx; + __le16 rx_ant_mode; +}; + +struct host_cmd_ds_rf_ant_siso { + __le16 action; + __le16 ant_mode; +}; + struct mwifiex_bcn_param { u8 bssid[ETH_ALEN]; u8 rssi; @@ -1370,6 +1389,8 @@ struct host_cmd_ds_command { struct host_cmd_ds_tx_rate_cfg tx_rate_cfg; struct host_cmd_ds_txpwr_cfg txp_cfg; struct host_cmd_ds_rf_tx_pwr txp; + struct host_cmd_ds_rf_ant_mimo ant_mimo; + struct host_cmd_ds_rf_ant_siso ant_siso; struct host_cmd_ds_802_11_ps_mode_enh psmode_enh; struct host_cmd_ds_802_11_hs_cfg_enh opt_hs_cfg; struct host_cmd_ds_802_11_scan scan; diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h index 9f088fb88cb7..e121294cc1ac 100644 --- a/drivers/net/wireless/mwifiex/ioctl.h +++ b/drivers/net/wireless/mwifiex/ioctl.h @@ -277,6 +277,11 @@ struct mwifiex_ds_11n_amsdu_aggr_ctrl { u16 curr_buf_size; }; +struct mwifiex_ds_ant_cfg { + u32 tx_ant; + u32 rx_ant; +}; + #define MWIFIEX_NUM_OF_CMD_BUFFER 20 #define MWIFIEX_SIZE_OF_CMD_BUFFER 2048 diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c index 2d4319a8941f..75eaa6f877fa 100644 --- a/drivers/net/wireless/mwifiex/sta_cmd.c +++ b/drivers/net/wireless/mwifiex/sta_cmd.c @@ -276,6 +276,39 @@ static int mwifiex_cmd_rf_tx_power(struct mwifiex_private *priv, return 0; } +/* + * This function prepares command to set rf antenna. + */ +static int mwifiex_cmd_rf_antenna(struct mwifiex_private *priv, + struct host_cmd_ds_command *cmd, + u16 cmd_action, + struct mwifiex_ds_ant_cfg *ant_cfg) +{ + struct host_cmd_ds_rf_ant_mimo *ant_mimo = &cmd->params.ant_mimo; + struct host_cmd_ds_rf_ant_siso *ant_siso = &cmd->params.ant_siso; + + cmd->command = cpu_to_le16(HostCmd_CMD_RF_ANTENNA); + + if (cmd_action != HostCmd_ACT_GEN_SET) + return 0; + + if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) { + cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_mimo) + + S_DS_GEN); + ant_mimo->action_tx = cpu_to_le16(HostCmd_ACT_SET_TX); + ant_mimo->tx_ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant); + ant_mimo->action_rx = cpu_to_le16(HostCmd_ACT_SET_RX); + ant_mimo->rx_ant_mode = cpu_to_le16((u16)ant_cfg->rx_ant); + } else { + cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_siso) + + S_DS_GEN); + ant_siso->action = cpu_to_le16(HostCmd_ACT_SET_BOTH); + ant_siso->ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant); + } + + return 0; +} + /* * This function prepares command to set Host Sleep configuration. * @@ -1076,6 +1109,10 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no, ret = mwifiex_cmd_rf_tx_power(priv, cmd_ptr, cmd_action, data_buf); break; + case HostCmd_CMD_RF_ANTENNA: + ret = mwifiex_cmd_rf_antenna(priv, cmd_ptr, cmd_action, + data_buf); + break; case HostCmd_CMD_802_11_PS_MODE_ENH: ret = mwifiex_cmd_enh_power_mode(priv, cmd_ptr, cmd_action, (uint16_t)cmd_oid, data_buf); diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c index 4cb2c1c78397..71c9b5b92e6d 100644 --- a/drivers/net/wireless/mwifiex/sta_cmdresp.c +++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c @@ -474,6 +474,33 @@ static int mwifiex_ret_rf_tx_power(struct mwifiex_private *priv, return 0; } +/* + * This function handles the command response of set rf antenna + */ +static int mwifiex_ret_rf_antenna(struct mwifiex_private *priv, + struct host_cmd_ds_command *resp) +{ + struct host_cmd_ds_rf_ant_mimo *ant_mimo = &resp->params.ant_mimo; + struct host_cmd_ds_rf_ant_siso *ant_siso = &resp->params.ant_siso; + struct mwifiex_adapter *adapter = priv->adapter; + + if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) + dev_dbg(adapter->dev, + "RF_ANT_RESP: Tx action = 0x%x, Tx Mode = 0x%04x" + " Rx action = 0x%x, Rx Mode = 0x%04x\n", + le16_to_cpu(ant_mimo->action_tx), + le16_to_cpu(ant_mimo->tx_ant_mode), + le16_to_cpu(ant_mimo->action_rx), + le16_to_cpu(ant_mimo->rx_ant_mode)); + else + dev_dbg(adapter->dev, + "RF_ANT_RESP: action = 0x%x, Mode = 0x%04x\n", + le16_to_cpu(ant_siso->action), + le16_to_cpu(ant_siso->ant_mode)); + + return 0; +} + /* * This function handles the command response of set/get MAC address. * @@ -874,6 +901,9 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no, case HostCmd_CMD_RF_TX_PWR: ret = mwifiex_ret_rf_tx_power(priv, resp); break; + case HostCmd_CMD_RF_ANTENNA: + ret = mwifiex_ret_rf_antenna(priv, resp); + break; case HostCmd_CMD_802_11_PS_MODE_ENH: ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf); break; -- 2.30.2