By default our chip will be in spatial coexistence mode.
This patch adds a provision to change it to timeshare mode
via debugfs command.
Enable timeshare coexistence mode
echo 1 > /sys/kernel/debug/mwifiex/mlan0/timeshare_coex
Go back to spacial coexistence mode
echo 0 > /sys/kernel/debug/mwifiex/mlan0/timeshare_coex
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
---
v2: Used debugfs instead of sysfs to control coexist(Kalle Valo)
---
drivers/net/wireless/mwifiex/debugfs.c | 52 ++++++++++++++++++++++++++++++
drivers/net/wireless/mwifiex/fw.h | 16 +++++++++
drivers/net/wireless/mwifiex/sta_cmd.c | 31 ++++++++++++++++++
drivers/net/wireless/mwifiex/sta_cmdresp.c | 25 ++++++++++++++
4 files changed, 124 insertions(+)
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c
index 5583856..9824d8d 100644
--- a/drivers/net/wireless/mwifiex/debugfs.c
+++ b/drivers/net/wireless/mwifiex/debugfs.c
@@ -856,6 +856,56 @@ mwifiex_hscfg_read(struct file *file, char __user *ubuf,
return ret;
}
+static ssize_t
+mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct mwifiex_private *priv = file->private_data;
+ char buf[3];
+ bool timeshare_coex;
+ int ret;
+ unsigned int len;
+
+ if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
+ return -EOPNOTSUPP;
+
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
+ HostCmd_ACT_GEN_GET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+
+ len = sprintf(buf, "%d\n", timeshare_coex);
+ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+}
+
+static ssize_t
+mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ bool timeshare_coex;
+ struct mwifiex_private *priv = file->private_data;
+ char kbuf[16];
+ int ret;
+
+ if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
+ return -EOPNOTSUPP;
+
+ memset(kbuf, 0, sizeof(kbuf));
+
+ if (copy_from_user(&kbuf, ubuf, min_t(size_t, sizeof(kbuf) - 1, count)))
+ return -EFAULT;
+
+ if (strtobool(kbuf, ×hare_coex))
+ return -EINVAL;
+
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
+ HostCmd_ACT_GEN_SET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+ else
+ return count;
+}
+
#define MWIFIEX_DFS_ADD_FILE(name) do { \
if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \
priv, &mwifiex_dfs_##name##_fops)) \
@@ -892,6 +942,7 @@ MWIFIEX_DFS_FILE_OPS(memrw);
MWIFIEX_DFS_FILE_OPS(hscfg);
MWIFIEX_DFS_FILE_OPS(histogram);
MWIFIEX_DFS_FILE_OPS(debug_mask);
+MWIFIEX_DFS_FILE_OPS(timeshare_coex);
/*
* This function creates the debug FS directory structure and the files.
@@ -918,6 +969,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
MWIFIEX_DFS_ADD_FILE(hscfg);
MWIFIEX_DFS_ADD_FILE(histogram);
MWIFIEX_DFS_ADD_FILE(debug_mask);
+ MWIFIEX_DFS_ADD_FILE(timeshare_coex);
}
/*
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 0e6f029..1e1e81a 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -101,6 +101,9 @@ enum KEY_TYPE_ID {
#define FIRMWARE_READY_SDIO 0xfedc
#define FIRMWARE_READY_PCIE 0xfedcba00
+#define MWIFIEX_COEX_MODE_TIMESHARE 0x01
+#define MWIFIEX_COEX_MODE_SPATIAL 0x82
+
enum mwifiex_usb_ep {
MWIFIEX_USB_EP_CMD_EVENT = 1,
MWIFIEX_USB_EP_DATA = 2,
@@ -163,6 +166,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
#define TLV_TYPE_CHANRPT_11H_BASIC (PROPRIETARY_TLV_BASE_ID + 91)
#define TLV_TYPE_UAP_RETRY_LIMIT (PROPRIETARY_TLV_BASE_ID + 93)
#define TLV_TYPE_WAPI_IE (PROPRIETARY_TLV_BASE_ID + 94)
+#define TLV_TYPE_ROBUST_COEX (PROPRIETARY_TLV_BASE_ID + 96)
#define TLV_TYPE_UAP_MGMT_FRAME (PROPRIETARY_TLV_BASE_ID + 104)
#define TLV_TYPE_MGMT_IE (PROPRIETARY_TLV_BASE_ID + 105)
#define TLV_TYPE_AUTO_DS_PARAM (PROPRIETARY_TLV_BASE_ID + 113)
@@ -354,6 +358,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
#define HostCmd_CMD_AMSDU_AGGR_CTRL 0x00df
#define HostCmd_CMD_TXPWR_CFG 0x00d1
#define HostCmd_CMD_TX_RATE_CFG 0x00d6
+#define HostCmd_CMD_ROBUST_COEX 0x00e0
#define HostCmd_CMD_802_11_PS_MODE_ENH 0x00e4
#define HostCmd_CMD_802_11_HS_CFG_ENH 0x00e5
#define HostCmd_CMD_P2P_MODE_CFG 0x00eb
@@ -1877,6 +1882,11 @@ struct mwifiex_ie_types_btcoex_aggr_win_size {
u8 reserved;
} __packed;
+struct mwifiex_ie_types_robust_coex {
+ struct mwifiex_ie_types_header header;
+ __le32 mode;
+} __packed;
+
struct host_cmd_ds_version_ext {
u8 version_str_sel;
char version_str[128];
@@ -2078,6 +2088,11 @@ struct host_cmd_ds_multi_chan_policy {
__le16 policy;
} __packed;
+struct host_cmd_ds_robust_coex {
+ __le16 action;
+ __le16 reserved;
+} __packed;
+
struct host_cmd_ds_command {
__le16 command;
__le16 size;
@@ -2147,6 +2162,7 @@ struct host_cmd_ds_command {
struct host_cmd_ds_chan_rpt_req chan_rpt_req;
struct host_cmd_sdio_sp_rx_aggr_cfg sdio_rx_aggr_cfg;
struct host_cmd_ds_multi_chan_policy mc_policy;
+ struct host_cmd_ds_robust_coex coex;
} params;
} __packed;
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index 504b321..e486867 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -1531,6 +1531,33 @@ mwifiex_cmd_set_mc_policy(struct mwifiex_private *priv,
return 0;
}
+static int mwifiex_cmd_robust_coex(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *cmd,
+ u16 cmd_action, bool *is_timeshare)
+{
+ struct host_cmd_ds_robust_coex *coex = &cmd->params.coex;
+ struct mwifiex_ie_types_robust_coex *coex_tlv;
+
+ cmd->command = cpu_to_le16(HostCmd_CMD_ROBUST_COEX);
+ cmd->size = cpu_to_le16(sizeof(*coex) + sizeof(*coex_tlv) + S_DS_GEN);
+
+ coex->action = cpu_to_le16(cmd_action);
+ coex_tlv = (struct mwifiex_ie_types_robust_coex *)
+ ((u8 *)coex + sizeof(*coex));
+ coex_tlv->header.type = cpu_to_le16(TLV_TYPE_ROBUST_COEX);
+ coex_tlv->header.len = cpu_to_le16(sizeof(coex_tlv->mode));
+
+ if (coex->action == HostCmd_ACT_GEN_GET)
+ return 0;
+
+ if (*is_timeshare)
+ coex_tlv->mode = cpu_to_le32(MWIFIEX_COEX_MODE_TIMESHARE);
+ else
+ coex_tlv->mode = cpu_to_le32(MWIFIEX_COEX_MODE_SPATIAL);
+
+ return 0;
+}
+
static int
mwifiex_cmd_coalesce_cfg(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
@@ -2040,6 +2067,10 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
ret = mwifiex_cmd_set_mc_policy(priv, cmd_ptr, cmd_action,
data_buf);
break;
+ case HostCmd_CMD_ROBUST_COEX:
+ ret = mwifiex_cmd_robust_coex(priv, cmd_ptr, cmd_action,
+ data_buf);
+ break;
default:
mwifiex_dbg(priv->adapter, ERROR,
"PREP_CMD: unknown cmd- %#x\n", cmd_no);
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index d0961635..9ac7aa2 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -1007,6 +1007,28 @@ static int mwifiex_ret_sdio_rx_aggr_cfg(struct mwifiex_private *priv,
return 0;
}
+static int mwifiex_ret_robust_coex(struct mwifiex_private *priv,
+ struct host_cmd_ds_command *resp,
+ bool *is_timeshare)
+{
+ struct host_cmd_ds_robust_coex *coex = &resp->params.coex;
+ struct mwifiex_ie_types_robust_coex *coex_tlv;
+ u16 action = le16_to_cpu(coex->action);
+ u32 mode;
+
+ coex_tlv = (struct mwifiex_ie_types_robust_coex
+ *)((u8 *)coex + sizeof(struct host_cmd_ds_robust_coex));
+ if (action == HostCmd_ACT_GEN_GET) {
+ mode = le32_to_cpu(coex_tlv->mode);
+ if (mode == MWIFIEX_COEX_MODE_TIMESHARE)
+ *is_timeshare = true;
+ else
+ *is_timeshare = false;
+ }
+
+ return 0;
+}
+
/*
* This function handles the command responses.
*
@@ -1213,6 +1235,9 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
break;
case HostCmd_CMD_TDLS_CONFIG:
break;
+ case HostCmd_CMD_ROBUST_COEX:
+ ret = mwifiex_ret_robust_coex(priv, resp, data_buf);
+ break;
default:
mwifiex_dbg(adapter, ERROR,
"CMD_RESP: unknown cmd response %#x\n",
--
1.8.1.4
--
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