qcacld-3.0: Add support for host initiated recovery

If platform has a mechanism to initiate target assert, trigger
that interface to force assert target. Certain integrated platforms
(where WLAN runs on it's own PD) provides a mechanism to initiate PDR
from host. That interface can be triggered when WLAN host detect
timeout scenarios.

CRs-Fixed: 1110243
Change-Id: I6a9408f47ca4245380dbf4177363c3c461ff948d

1 files changed, 32 insertions, 1 deletions

diff --git a/core/pld/src/pld_common.c b/core/pld/src/pld_common.c
index 0c052f4d5c..950cc625b3 100644
--- a/core/pld/src/pld_common.c
+++ b/core/pld/src/pld_common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -1576,3 +1576,34 @@ int pld_is_qmi_disable(struct device *dev)
 
 	return ret;
 }
+
+/**
+ * pld_force_assert_target() - Send a force assert to FW.
+ * This can use various sideband requests available at platform to
+ * initiate a FW assert.
+ * @dev: device
+ *
+ *  Return: 0 if force assert of target was triggered successfully
+ *          Non zero failure code for errors
+ */
+int pld_force_assert_target(struct device *dev)
+{
+	int ret = 0;
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_SNOC:
+		ret = pld_snoc_force_assert_target(dev);
+		break;
+
+	case PLD_BUS_TYPE_PCIE:
+	case PLD_BUS_TYPE_SDIO:
+		ret = -EINVAL;
+		break;
+	default:
+		pr_err("Invalid device type %d\n", type);
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}