path: root/drivers/bluetooth/btmtk.c

// SPDX-License-Identifier: ISC
/* Copyright (C) 2021 MediaTek Inc.
 *
 */
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/usb.h>
#include <linux/iopoll.h>
#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btmtk.h"

#define VERSION "0.1"

/* It is for mt79xx download rom patch*/
#define MTK_FW_ROM_PATCH_HEADER_SIZE	32
#define MTK_FW_ROM_PATCH_GD_SIZE	64
#define MTK_FW_ROM_PATCH_SEC_MAP_SIZE	64
#define MTK_SEC_MAP_COMMON_SIZE	12
#define MTK_SEC_MAP_NEED_SEND_SIZE	52

/* It is for mt79xx iso data transmission setting */
#define MTK_ISO_THRESHOLD	264

struct btmtk_patch_header {
	u8 datetime[16];
	u8 platform[4];
	__le16 hwver;
	__le16 swver;
	__le32 magicnum;
} __packed;

struct btmtk_global_desc {
	__le32 patch_ver;
	__le32 sub_sys;
	__le32 feature_opt;
	__le32 section_num;
} __packed;

struct btmtk_section_map {
	__le32 sectype;
	__le32 secoffset;
	__le32 secsize;
	union {
		__le32 u4SecSpec[13];
		struct {
			__le32 dlAddr;
			__le32 dlsize;
			__le32 seckeyidx;
			__le32 alignlen;
			__le32 sectype;
			__le32 dlmodecrctype