For non-AR9271 chips, the credit size is different
and has to be configured appropriately.
Signed-off-by: Sujith <[email protected]>
---
drivers/net/wireless/ath/ath9k/htc_drv_init.c | 30 ++++++++++++++++++++++--
drivers/net/wireless/ath/ath9k/htc_hst.c | 3 +-
2 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index cda3041..7339439 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -179,7 +179,7 @@ static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
return htc_connect_service(priv->htc, &req, ep_id);
}
-static int ath9k_init_htc_services(struct ath9k_htc_priv *priv)
+static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid)
{
int ret;
@@ -237,10 +237,33 @@ static int ath9k_init_htc_services(struct ath9k_htc_priv *priv)
if (ret)
goto err;
+ /*
+ * Setup required credits before initializing HTC.
+ * This is a bit hacky, but, since queuing is done in
+ * the HIF layer, shouldn't matter much.
+ */
+
+ switch(devid) {
+ case 0x9271:
+ case 0x1006:
+ priv->htc->credits = 33;
+ break;
+ case 0x7010:
+ priv->htc->credits = 45;
+ break;
+ default:
+ dev_err(priv->dev, "ath9k_htc: Unsupported device id: 0x%x\n",
+ devid);
+ goto err;
+ }
+
ret = htc_init(priv->htc);
if (ret)
goto err;
+ dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
+ priv->htc->credits);
+
return 0;
err:
@@ -842,7 +865,7 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
goto err_free;
}
- ret = ath9k_init_htc_services(priv);
+ ret = ath9k_init_htc_services(priv, devid);
if (ret)
goto err_init;
@@ -885,7 +908,8 @@ int ath9k_htc_resume(struct htc_target *htc_handle)
if (ret)
return ret;
- ret = ath9k_init_htc_services(htc_handle->drv_priv);
+ ret = ath9k_init_htc_services(htc_handle->drv_priv,
+ htc_handle->drv_priv->ah->hw_version.devid);
return ret;
}
#endif
diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index 2173196..705c0f3 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -89,7 +89,6 @@ static void htc_process_target_rdy(struct htc_target *target,
struct htc_endpoint *endpoint;
struct htc_ready_msg *htc_ready_msg = (struct htc_ready_msg *) buf;
- target->credits = be16_to_cpu(htc_ready_msg->credits);
target->credit_size = be16_to_cpu(htc_ready_msg->credit_size);
endpoint = &target->endpoint[ENDPOINT0];
@@ -159,7 +158,7 @@ static int htc_config_pipe_credits(struct htc_target *target)
cp_msg->message_id = cpu_to_be16(HTC_MSG_CONFIG_PIPE_ID);
cp_msg->pipe_id = USB_WLAN_TX_PIPE;
- cp_msg->credits = 33;
+ cp_msg->credits = target->credits;
target->htc_flags |= HTC_OP_CONFIG_PIPE_CREDITS;
--
1.7.1