wl12xx: add device role commands

The device role is a special role used for rx and tx frames
prior to association (as the STA role can get packets only
from its associated bssid)

Since this role is required for the sta association process,
we enable it when a new sta interface is created.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c
index b13eed129a92..e29343ed6ea2 100644
--- a/drivers/net/wireless/wl12xx/cmd.c
+++ b/drivers/net/wireless/wl12xx/cmd.c
@@ -458,6 +458,97 @@ static void wl12xx_free_link(struct wl1271 *wl, u8 *hlid)
 	*hlid = WL12XX_INVALID_LINK_ID;
 }
 
+int wl12xx_cmd_role_start_dev(struct wl1271 *wl)
+{
+	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", wl->dev_role_id);
+
+	cmd->role_id = wl->dev_role_id;
+	if (wl->band == IEEE80211_BAND_5GHZ)
+		cmd->band = WL12XX_BAND_5GHZ;
+	cmd->channel = wl->channel;
+
+	if (wl->dev_hlid == WL12XX_INVALID_LINK_ID) {
+		ret = wl12xx_allocate_link(wl, &wl->dev_hlid);
+		if (ret)
+			goto out_free;
+	}
+	cmd->device.hlid = wl->dev_hlid;
+	cmd->device.session = wl->session_counter;
+
+	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 */
+	__clear_bit(wl->dev_hlid, wl->links_map);
+	wl->dev_hlid = WL12XX_INVALID_LINK_ID;
+
+
+out_free:
+	kfree(cmd);
+
+out:
+	return ret;
+}
+
+int wl12xx_cmd_role_stop_dev(struct wl1271 *wl)
+{
+	struct wl12xx_cmd_role_stop *cmd;
+	int ret;
+
+	if (WARN_ON(wl->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 = wl->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;
+	}
+
+	ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
+	if (ret < 0) {
+		wl1271_error("cmd role stop dev event completion error");
+		goto out_free;
+	}
+
+	wl12xx_free_link(wl, &wl->dev_hlid);
+
+out_free:
+	kfree(cmd);
+
+out:
+	return ret;
+}
+
 int wl12xx_cmd_role_start_sta(struct wl1271 *wl)
 {
 	struct wl12xx_cmd_role_start *cmd;