qcacld-3.0: Export get driver mode interface

Since PCIE Genoa has separate wlan fw patch for
mission mode(amss.bin) and ftm mode(genoaftm.bin),
but cnss2 platform driver always try to load amss.bin,
which is not feasible. So add this new interface for
cnss2 to get correct driver mode and update the fw
patch name before it start downloading wlan fw

Change-Id: I44565c5f50aa03bbc407ee135ef5b02a040b0df6

Kbuild

@@ -3642,6 +3642,8 @@ ccflags-y += -DDP_RX_BUFFER_POOL_ALLOC_THRES=$(CONFIG_DP_RX_BUFFER_POOL_ALLOC_TH
 endif
 endif
 
+ccflags-$(CONFIG_GET_DRIVER_MODE) += -DFEATURE_GET_DRIVER_MODE
+
 KBUILD_CPPFLAGS += $(cppflags-y)
 
 # Currently, for versions of gcc which support it, the kernel Makefile

core/hdd/src/wlan_hdd_main.c

@@ -16614,6 +16614,11 @@ int hdd_driver_load(void)
 		goto param_destroy;
 	}
 
+	/* driver mode pass to cnss2 platform driver*/
+	errno = pld_set_mode(con_mode);
+	if (errno)
+		hdd_err("Failed to set mode in PLD; errno:%d", errno);
+
 	hdd_driver_mode_change_register();
 
 	osif_driver_sync_register(driver_sync);

core/pld/inc/pld_common.h

@@ -435,6 +435,15 @@ struct pld_driver_ops {
 int pld_init(void);
 void pld_deinit(void);
 
+/**
+ * pld_set_mode() - set driver mode in PLD module
+ * @mode: driver mode
+ *
+ * Return: 0 for success
+ *         Non zero failure code for errors
+ */
+int pld_set_mode(u8 mode);
+
 int pld_register_driver(struct pld_driver_ops *ops);
 void pld_unregister_driver(void);
 

core/pld/src/pld_common.c

@@ -117,6 +117,15 @@ void pld_deinit(void)
 	pld_ctx = NULL;
 }
 
+int pld_set_mode(u8 mode)
+{
+	if (!pld_ctx)
+		return -ENOMEM;
+
+	pld_ctx->mode = mode;
+	return 0;
+}
+
 /**
  * pld_get_global_context() - Get global context of PLD
  *

core/pld/src/pld_internal.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018-2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -33,6 +33,7 @@ struct pld_context {
 	spinlock_t pld_lock;
 	struct list_head dev_list;
 	uint32_t pld_driver_state;
+	uint8_t mode;
 };
 
 struct pld_context *pld_get_global_context(void);

core/pld/src/pld_pcie.c

@@ -352,6 +352,50 @@ static int pld_pcie_runtime_resume(struct pci_dev *pdev)
 	return -ENODEV;
 }
 #endif
+
+#ifdef FEATURE_GET_DRIVER_MODE
+/**
+ * pld_pcie_get_mode() - Get current WLAN driver mode
+ *
+ * This function is to get current driver mode
+ *
+ * Return: mission mode or ftm mode
+ */
+static
+enum cnss_driver_mode pld_pcie_get_mode(void)
+{
+	struct pld_context *pld_ctx =  pld_get_global_context();
+	enum cnss_driver_mode cnss_mode = CNSS_MISSION;
+
+	if (!pld_ctx)
+		return cnss_mode;
+
+	switch (pld_ctx->mode) {
+	case QDF_GLOBAL_MISSION_MODE:
+		cnss_mode = CNSS_MISSION;
+		break;
+	case QDF_GLOBAL_WALTEST_MODE:
+		cnss_mode = CNSS_WALTEST;
+		break;
+	case QDF_GLOBAL_FTM_MODE:
+		cnss_mode = CNSS_FTM;
+		break;
+	case QDF_GLOBAL_COLDBOOT_CALIB_MODE:
+		cnss_mode = CNSS_CALIBRATION;
+		break;
+	case QDF_GLOBAL_EPPING_MODE:
+		cnss_mode = CNSS_EPPING;
+		break;
+	case QDF_GLOBAL_QVIT_MODE:
+		cnss_mode = CNSS_QVIT;
+		break;
+	default:
+		cnss_mode = CNSS_MISSION;
+		break;
+	}
+	return cnss_mode;
+}
+#endif
 #endif
 
 #ifdef CONFIG_PM
@@ -593,6 +637,9 @@ struct cnss_wlan_driver pld_pcie_ops = {
 #ifdef FEATURE_RUNTIME_PM
 	.runtime_ops = &runtime_pm_ops,
 #endif
+#ifdef FEATURE_GET_DRIVER_MODE
+	.get_driver_mode  = pld_pcie_get_mode,
+#endif
 };
 
 /**