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Subject[PATCH 06/16] wl1251: split RX and TX data path initialisation
Date
From: David Gnedt <david.gnedt@davizone.at>

Split up data path initialisation into RX and TX data path initialisation
functions. This change is required for channel switching in monitor mode.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
---
drivers/net/wireless/ti/wl1251/cmd.c | 37 ++++++++++++++++++++++++++-------
drivers/net/wireless/ti/wl1251/cmd.h | 3 ++-
drivers/net/wireless/ti/wl1251/init.c | 9 ++++++--
3 files changed, 39 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ti/wl1251/cmd.c b/drivers/net/wireless/ti/wl1251/cmd.c
index 16b6479..055924c 100644
--- a/drivers/net/wireless/ti/wl1251/cmd.c
+++ b/drivers/net/wireless/ti/wl1251/cmd.c
@@ -204,11 +204,11 @@ out:
return ret;
}

-int wl1251_cmd_data_path(struct wl1251 *wl, u8 channel, bool enable)
+int wl1251_cmd_data_path_rx(struct wl1251 *wl, u8 channel, bool enable)
{
struct cmd_enabledisable_path *cmd;
int ret;
- u16 cmd_rx, cmd_tx;
+ u16 cmd_rx;

wl1251_debug(DEBUG_CMD, "cmd data path");

@@ -220,13 +220,10 @@ int wl1251_cmd_data_path(struct wl1251 *wl, u8 channel, bool enable)

cmd->channel = channel;

- if (enable) {
+ if (enable)
cmd_rx = CMD_ENABLE_RX;
- cmd_tx = CMD_ENABLE_TX;
- } else {
+ else
cmd_rx = CMD_DISABLE_RX;
- cmd_tx = CMD_DISABLE_TX;
- }

ret = wl1251_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
if (ret < 0) {
@@ -238,6 +235,32 @@ int wl1251_cmd_data_path(struct wl1251 *wl, u8 channel, bool enable)
wl1251_debug(DEBUG_BOOT, "rx %s cmd channel %d",
enable ? "start" : "stop", channel);

+out:
+ kfree(cmd);
+ return ret;
+}
+
+int wl1251_cmd_data_path_tx(struct wl1251 *wl, u8 channel, bool enable)
+{
+ struct cmd_enabledisable_path *cmd;
+ int ret;
+ u16 cmd_tx;
+
+ wl1251_debug(DEBUG_CMD, "cmd data path");
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ cmd->channel = channel;
+
+ if (enable)
+ cmd_tx = CMD_ENABLE_TX;
+ else
+ cmd_tx = CMD_DISABLE_TX;
+
ret = wl1251_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
if (ret < 0) {
wl1251_error("tx %s cmd for channel %d failed",
diff --git a/drivers/net/wireless/ti/wl1251/cmd.h b/drivers/net/wireless/ti/wl1251/cmd.h
index 126f273..d824ff9 100644
--- a/drivers/net/wireless/ti/wl1251/cmd.h
+++ b/drivers/net/wireless/ti/wl1251/cmd.h
@@ -35,7 +35,8 @@ int wl1251_cmd_interrogate(struct wl1251 *wl, u16 id, void *buf, size_t len);
int wl1251_cmd_configure(struct wl1251 *wl, u16 id, void *buf, size_t len);
int wl1251_cmd_vbm(struct wl1251 *wl, u8 identity,
void *bitmap, u16 bitmap_len, u8 bitmap_control);
-int wl1251_cmd_data_path(struct wl1251 *wl, u8 channel, bool enable);
+int wl1251_cmd_data_path_rx(struct wl1251 *wl, u8 channel, bool enable);
+int wl1251_cmd_data_path_tx(struct wl1251 *wl, u8 channel, bool enable);
int wl1251_cmd_join(struct wl1251 *wl, u8 bss_type, u8 channel,
u16 beacon_interval, u8 dtim_interval);
int wl1251_cmd_ps_mode(struct wl1251 *wl, u8 ps_mode);
diff --git a/drivers/net/wireless/ti/wl1251/init.c b/drivers/net/wireless/ti/wl1251/init.c
index a6ad223..424ce01 100644
--- a/drivers/net/wireless/ti/wl1251/init.c
+++ b/drivers/net/wireless/ti/wl1251/init.c
@@ -390,8 +390,13 @@ int wl1251_hw_init(struct wl1251 *wl)
if (ret < 0)
goto out_free_data_path;

- /* Enable data path */
- ret = wl1251_cmd_data_path(wl, wl->channel, 1);
+ /* Enable rx data path */
+ ret = wl1251_cmd_data_path_rx(wl, wl->channel, 1);
+ if (ret < 0)
+ goto out_free_data_path;
+
+ /* Enable tx data path */
+ ret = wl1251_cmd_data_path_tx(wl, wl->channel, 1);
if (ret < 0)
goto out_free_data_path;

--
1.7.10.4


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