linux-imx

// SPDX-License-Identifier: GPL-2.0

// Copyright (c) 2018 MediaTek Inc.

​

/*

 * Bluetooth support for MediaTek serial devices

 *

 * Author: Sean Wang <sean.wang@mediatek.com>

 *

 */

​

#include <asm/unaligned.h>

#include <linux/atomic.h>

#include <linux/clk.h>

#include <linux/firmware.h>

#include <linux/gpio/consumer.h>

#include <linux/iopoll.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/pinctrl/consumer.h>

#include <linux/pm_runtime.h>

#include <linux/regulator/consumer.h>

#include <linux/serdev.h>

#include <linux/skbuff.h>

​

#include <net/bluetooth/bluetooth.h>

#include <net/bluetooth/hci_core.h>

​

#include "h4_recv.h"

​

#define VERSION "0.2"

​

#define FIRMWARE_MT7622     "mediatek/mt7622pr2h.bin"

#define FIRMWARE_MT7663     "mediatek/mt7663pr2h.bin"

#define FIRMWARE_MT7668     "mediatek/mt7668pr2h.bin"

​

#define MTK_STP_TLR_SIZE    2

​

#define BTMTKUART_TX_STATE_ACTIVE   1

#define BTMTKUART_TX_STATE_WAKEUP   2

#define BTMTKUART_TX_WAIT_VND_EVT   3

#define BTMTKUART_REQUIRED_WAKEUP   4

​

#define BTMTKUART_FLAG_STANDALONE_HW     BIT(0)

​

enum {

    MTK_WMT_PATCH_DWNLD = 0x1,

    MTK_WMT_TEST = 0x2,

    MTK_WMT_WAKEUP = 0x3,

    MTK_WMT_HIF = 0x4,

    MTK_WMT_FUNC_CTRL = 0x6,

    MTK_WMT_RST = 0x7,

    MTK_WMT_SEMAPHORE = 0x17,

};

​

enum {

    BTMTK_WMT_INVALID,

    BTMTK_WMT_PATCH_UNDONE,

    BTMTK_WMT_PATCH_DONE,

    BTMTK_WMT_ON_UNDONE,

    BTMTK_WMT_ON_DONE,

    BTMTK_WMT_ON_PROGRESS,

};

​

struct mtk_stp_hdr {

    u8  prefix;

    __be16  dlen;

    u8  cs;

} __packed;

​

struct btmtkuart_data {

    unsigned int flags;

    const char *fwname;

};

​

struct mtk_wmt_hdr {

    u8  dir;

    u8  op;

    __le16  dlen;

    u8  flag;

} __packed;

​

struct mtk_hci_wmt_cmd {

    struct mtk_wmt_hdr hdr;

    u8 data[256];

} __packed;

​

struct btmtk_hci_wmt_evt {

    struct hci_event_hdr hhdr;

    struct mtk_wmt_hdr whdr;

} __packed;