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>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/qmi.h b/drivers/net/wireless/ath/ath10k/qmi.h
new file mode 100644
index 000000000000..1efe1d22fc2f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/qmi.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2018 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 above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef _ATH10K_QMI_H_
+#define _ATH10K_QMI_H_
+
+#include <linux/soc/qcom/qmi.h>
+#include <linux/qrtr.h>
+#include "qmi_wlfw_v01.h"
+
+#define MAX_NUM_MEMORY_REGIONS			2
+#define MAX_TIMESTAMP_LEN			32
+#define MAX_BUILD_ID_LEN			128
+#define MAX_NUM_CAL_V01			5
+
+enum ath10k_qmi_driver_event_type {
+	ATH10K_QMI_EVENT_SERVER_ARRIVE,
+	ATH10K_QMI_EVENT_SERVER_EXIT,
+	ATH10K_QMI_EVENT_FW_READY_IND,
+	ATH10K_QMI_EVENT_FW_DOWN_IND,
+	ATH10K_QMI_EVENT_MSA_READY_IND,
+	ATH10K_QMI_EVENT_MAX,
+};
+
+struct ath10k_msa_mem_info {
+	phys_addr_t addr;
+	u32 size;
+	bool secure;
+};
+
+struct ath10k_qmi_chip_info {
+	u32 chip_id;
+	u32 chip_family;
+};
+
+struct ath10k_qmi_board_info {
+	u32 board_id;
+};
+
+struct ath10k_qmi_soc_info {
+	u32 soc_id;
+};
+
+struct ath10k_qmi_cal_data {
+	u32 cal_id;
+	u32 total_size;
+	u8 *data;
+};
+
+struct ath10k_tgt_pipe_cfg {
+	__le32 pipe_num;
+	__le32 pipe_dir;
+	__le32 nentries;
+	__le32 nbytes_max;
+	__le32 flags;
+	__le32 reserved;
+};
+
+struct ath10k_svc_pipe_cfg {
+	__le32 service_id;
+	__le32 pipe_dir;
+	__le32 pipe_num;
+};
+
+struct ath10k_shadow_reg_cfg {
+	__le16 ce_id;
+	__le16 reg_offset;
+};
+
+struct ath10k_qmi_wlan_enable_cfg {
+	u32 num_ce_tgt_cfg;
+	struct ath10k_tgt_pipe_cfg *ce_tgt_cfg;
+	u32 num_ce_svc_pipe_cfg;
+	struct ath10k_svc_pipe_cfg *ce_svc_cfg;
+	u32 num_shadow_reg_cfg;
+	struct ath10k_shadow_reg_cfg *shadow_reg_cfg;
+};
+
+struct ath10k_qmi_driver_event {
+	struct list_head list;
+	enum ath10k_qmi_driver_event_type type;
+	void *data;
+};
+
+struct ath10k_qmi {
+	struct ath10k *ar;
+	struct qmi_handle qmi_hdl;
+	struct sockaddr_qrtr sq;
+	struct work_struct event_work;
+	struct workqueue_struct *event_wq;
+	struct list_head event_list;
+	spinlock_t event_lock; /* spinlock for qmi event list */
+	u32 nr_mem_region;
+	struct ath10k_msa_mem_info mem_region[MAX_NUM_MEMORY_REGIONS];
+	dma_addr_t msa_pa;
+	u32 msa_mem_size;
+	void *msa_va;
+	struct ath10k_qmi_chip_info chip_info;
+	struct ath10k_qmi_board_info board_info;
+	struct ath10k_qmi_soc_info soc_info;
+	char fw_build_id[MAX_BUILD_ID_LEN + 1];
+	u32 fw_version;
+	bool fw_ready;
+	char fw_build_timestamp[MAX_TIMESTAMP_LEN + 1];
+	struct ath10k_qmi_cal_data cal_data[MAX_NUM_CAL_V01];
+};
+
+int ath10k_qmi_wlan_enable(struct ath10k *ar,
+			   struct ath10k_qmi_wlan_enable_cfg *config,
+			   enum wlfw_driver_mode_enum_v01 mode,
+			   const char *version);
+int ath10k_qmi_wlan_disable(struct ath10k *ar);
+int ath10k_qmi_register_service_notifier(struct notifier_block *nb);
+int ath10k_qmi_init(struct ath10k *ar, u32 msa_size);
+int ath10k_qmi_deinit(struct ath10k *ar);
+
+#endif /* ATH10K_QMI_H */