ath10k: add QMI message handshake for wcn3990 client

Add WCN3990 QMI client handshakes for Q6 integrated WLAN connectivity
subsystem. This layer is responsible for communicating qmi control
messages to wifi fw QMI service using QMI messaging protocol.

Qualcomm MSM Interface(QMI) is a messaging format used to communicate
between components running between remote processors with underlying
transport layer based on integrated chipset(shared memory) or
discrete chipset(PCI/USB/SDIO/UART).

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/ath10k/Kconfig

@@ -44,6 +44,7 @@ config ATH10K_SNOC
 	tristate "Qualcomm ath10k SNOC support (EXPERIMENTAL)"
 	depends on ATH10K
 	depends on ARCH_QCOM || COMPILE_TEST
+	select QCOM_QMI_HELPERS
 	---help---
 	  This module adds support for integrated WCN3990 chip connected
 	  to system NOC(SNOC). Currently work in progress and will not

drivers/net/wireless/ath/ath10k/Makefile

@@ -36,7 +36,9 @@ obj-$(CONFIG_ATH10K_USB) += ath10k_usb.o
 ath10k_usb-y += usb.o
 
 obj-$(CONFIG_ATH10K_SNOC) += ath10k_snoc.o
-ath10k_snoc-y += snoc.o
+ath10k_snoc-y += qmi.o \
+		 qmi_wlfw_v01.o \
+		 snoc.o
 
 # for tracing framework to find trace.h
 CFLAGS_trace.o := -I$(src)

drivers/net/wireless/ath/ath10k/core.c

@@ -989,7 +989,7 @@ static int ath10k_download_fw(struct ath10k *ar)
 					data, data_len);
 }
 
-static void ath10k_core_free_board_files(struct ath10k *ar)
+void ath10k_core_free_board_files(struct ath10k *ar)
 {
 	if (!IS_ERR(ar->normal_mode_fw.board))
 		release_firmware(ar->normal_mode_fw.board);
@@ -1004,6 +1004,7 @@ static void ath10k_core_free_board_files(struct ath10k *ar)
 	ar->normal_mode_fw.ext_board_data = NULL;
 	ar->normal_mode_fw.ext_board_len = 0;
 }
+EXPORT_SYMBOL(ath10k_core_free_board_files);
 
 static void ath10k_core_free_firmware_files(struct ath10k *ar)
 {
@@ -1367,7 +1368,7 @@ static int ath10k_core_create_eboard_name(struct ath10k *ar, char *name,
 	return -1;
 }
 
-static int ath10k_core_fetch_board_file(struct ath10k *ar, int bd_ie_type)
+int ath10k_core_fetch_board_file(struct ath10k *ar, int bd_ie_type)
 {
 	char boardname[100], fallback_boardname[100];
 	int ret;
@@ -1415,6 +1416,7 @@ static int ath10k_core_fetch_board_file(struct ath10k *ar, int bd_ie_type)
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "using board api %d\n", ar->bd_api);
 	return 0;
 }
+EXPORT_SYMBOL(ath10k_core_fetch_board_file);
 
 static int ath10k_core_get_ext_board_id_from_otp(struct ath10k *ar)
 {

drivers/net/wireless/ath/ath10k/core.h

@@ -1218,5 +1218,7 @@ void ath10k_core_stop(struct ath10k *ar);
 int ath10k_core_register(struct ath10k *ar,
 			 const struct ath10k_bus_params *bus_params);
 void ath10k_core_unregister(struct ath10k *ar);
+int ath10k_core_fetch_board_file(struct ath10k *ar, int bd_ie_type);
+void ath10k_core_free_board_files(struct ath10k *ar);
 
 #endif /* _CORE_H_ */