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Bluetooth: btmtkuart: rely on BT_MTK module

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Rely on btmtk module to reduce duplicated code

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Sean Wang 2022-03-09 08:03:52 +08:00 committed by Marcel Holtmann
parent cc68a041d2
commit f5c3f98946
4 changed files with 29 additions and 158 deletions
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1
drivers/bluetooth/Kconfig
View File

@ -400,6 +400,7 @@ config BT_MTKSDIO
config BT_MTKUART
tristate "MediaTek HCI UART driver"
depends on SERIAL_DEV_BUS
select BT_MTK
help
MediaTek Bluetooth HCI UART driver.
This driver is required if you want to use MediaTek Bluetooth

1
drivers/bluetooth/btmtk.c
View File

@ -285,6 +285,7 @@ MODULE_AUTHOR("Mark Chen <mark-yw.chen@mediatek.com>");
MODULE_DESCRIPTION("Bluetooth support for MediaTek devices ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_MT7622);
MODULE_FIRMWARE(FIRMWARE_MT7663);
MODULE_FIRMWARE(FIRMWARE_MT7668);
MODULE_FIRMWARE(FIRMWARE_MT7961);

1
drivers/bluetooth/btmtk.h
View File

@ -1,6 +1,7 @@
/* SPDX-License-Identifier: ISC */
/* Copyright (C) 2021 MediaTek Inc. */
#define FIRMWARE_MT7622 "mediatek/mt7622pr2h.bin"
#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
#define FIRMWARE_MT7961 "mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin"

184
drivers/bluetooth/btmtkuart.c
View File

@ -28,13 +28,10 @@
#include <net/bluetooth/hci_core.h>
#include "h4_recv.h"
#include "btmtk.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
@ -44,25 +41,6 @@
#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;
@ -74,44 +52,6 @@ struct btmtkuart_data {
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;
struct btmtk_hci_wmt_evt_funcc {
struct btmtk_hci_wmt_evt hwhdr;
__be16 status;
} __packed;
struct btmtk_tci_sleep {
u8 mode;
__le16 duration;
__le16 host_duration;
u8 host_wakeup_pin;
u8 time_compensation;
} __packed;
struct btmtk_hci_wmt_params {
u8 op;
u8 flag;
u16 dlen;
const void *data;
u32 *status;
};
struct btmtkuart_dev {
struct hci_dev *hdev;
struct serdev_device *serdev;
@ -153,29 +93,34 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
u32 hlen, status = BTMTK_WMT_INVALID;
struct btmtk_hci_wmt_evt *wmt_evt;
struct mtk_hci_wmt_cmd wc;
struct mtk_wmt_hdr *hdr;
struct btmtk_hci_wmt_cmd *wc;
struct btmtk_wmt_hdr *hdr;
int err;
/* Send the WMT command and wait until the WMT event returns */
hlen = sizeof(*hdr) + wmt_params->dlen;
if (hlen > 255) {
err = -EINVAL;
goto err_free_skb;
}
hdr = (struct mtk_wmt_hdr *)&wc;
wc = kzalloc(hlen, GFP_KERNEL);
if (!wc)
return -ENOMEM;
hdr = &wc->hdr;
hdr->dir = 1;
hdr->op = wmt_params->op;
hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
hdr->flag = wmt_params->flag;
memcpy(wc.data, wmt_params->data, wmt_params->dlen);
memcpy(wc->data, wmt_params->data, wmt_params->dlen);
set_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
if (err < 0) {
clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
goto err_free_skb;
goto err_free_wc;
}
/* The vendor specific WMT commands are all answered by a vendor
@ -192,14 +137,14 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
if (err == -EINTR) {
bt_dev_err(hdev, "Execution of wmt command interrupted");
clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
goto err_free_skb;
goto err_free_wc;
}
if (err) {
bt_dev_err(hdev, "Execution of wmt command timed out");
clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
err = -ETIMEDOUT;
goto err_free_skb;
goto err_free_wc;
}
/* Parse and handle the return WMT event */
@ -212,13 +157,13 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
}
switch (wmt_evt->whdr.op) {
case MTK_WMT_SEMAPHORE:
case BTMTK_WMT_SEMAPHORE:
if (wmt_evt->whdr.flag == 2)
status = BTMTK_WMT_PATCH_UNDONE;
else
status = BTMTK_WMT_PATCH_DONE;
break;
case MTK_WMT_FUNC_CTRL:
case BTMTK_WMT_FUNC_CTRL:
wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
status = BTMTK_WMT_ON_DONE;
@ -235,86 +180,12 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
err_free_skb:
kfree_skb(bdev->evt_skb);
bdev->evt_skb = NULL;
err_free_wc:
kfree(wc);
return err;
}
static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
{
struct btmtk_hci_wmt_params wmt_params;
const struct firmware *fw;
const u8 *fw_ptr;
size_t fw_size;
int err, dlen;
u8 flag;
err = request_firmware(&fw, fwname, &hdev->dev);
if (err < 0) {
bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
return err;
}
fw_ptr = fw->data;
fw_size = fw->size;
/* The size of patch header is 30 bytes, should be skip */
if (fw_size < 30) {
err = -EINVAL;
goto free_fw;
}
fw_size -= 30;
fw_ptr += 30;
flag = 1;
wmt_params.op = MTK_WMT_PATCH_DWNLD;
wmt_params.status = NULL;
while (fw_size > 0) {
dlen = min_t(int, 250, fw_size);
/* Tell device the position in sequence */
if (fw_size - dlen <= 0)
flag = 3;
else if (fw_size < fw->size - 30)
flag = 2;
wmt_params.flag = flag;
wmt_params.dlen = dlen;
wmt_params.data = fw_ptr;
err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
err);
goto free_fw;
}
fw_size -= dlen;
fw_ptr += dlen;
}
wmt_params.op = MTK_WMT_RST;
wmt_params.flag = 4;
wmt_params.dlen = 0;
wmt_params.data = NULL;
wmt_params.status = NULL;
/* Activate funciton the firmware providing to */
err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
goto free_fw;
}
/* Wait a few moments for firmware activation done */
usleep_range(10000, 12000);
free_fw:
release_firmware(fw);
return err;
}
static int btmtkuart_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
{
struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
@ -645,7 +516,7 @@ static int btmtkuart_func_query(struct hci_dev *hdev)
u8 param = 0;
/* Query whether the function is enabled */
wmt_params.op = MTK_WMT_FUNC_CTRL;
wmt_params.op = BTMTK_WMT_FUNC_CTRL;
wmt_params.flag = 4;
wmt_params.dlen = sizeof(param);
wmt_params.data = &param;
@ -672,7 +543,7 @@ static int btmtkuart_change_baudrate(struct hci_dev *hdev)
* ready to change a new baudrate.
*/
baudrate = cpu_to_le32(bdev->desired_speed);
wmt_params.op = MTK_WMT_HIF;
wmt_params.op = BTMTK_WMT_HIF;
wmt_params.flag = 1;
wmt_params.dlen = 4;
wmt_params.data = &baudrate;
@ -706,7 +577,7 @@ static int btmtkuart_change_baudrate(struct hci_dev *hdev)
usleep_range(20000, 22000);
/* Test the new baudrate */
wmt_params.op = MTK_WMT_TEST;
wmt_params.op = BTMTK_WMT_TEST;
wmt_params.flag = 7;
wmt_params.dlen = 0;
wmt_params.data = NULL;
@ -741,7 +612,7 @@ static int btmtkuart_setup(struct hci_dev *hdev)
* do any setups.
*/
if (test_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state)) {
wmt_params.op = MTK_WMT_WAKEUP;
wmt_params.op = BTMTK_WMT_WAKEUP;
wmt_params.flag = 3;
wmt_params.dlen = 0;
wmt_params.data = NULL;
@ -760,7 +631,7 @@ static int btmtkuart_setup(struct hci_dev *hdev)
btmtkuart_change_baudrate(hdev);
/* Query whether the firmware is already download */
wmt_params.op = MTK_WMT_SEMAPHORE;
wmt_params.op = BTMTK_WMT_SEMAPHORE;
wmt_params.flag = 1;
wmt_params.dlen = 0;
wmt_params.data = NULL;
@ -778,7 +649,7 @@ static int btmtkuart_setup(struct hci_dev *hdev)
}
/* Setup a firmware which the device definitely requires */
err = mtk_setup_firmware(hdev, bdev->data->fwname);
err = btmtk_setup_firmware(hdev, bdev->data->fwname, mtk_hci_wmt_sync);
if (err < 0)
return err;
@ -801,7 +672,7 @@ ignore_setup_fw:
}
/* Enable Bluetooth protocol */
wmt_params.op = MTK_WMT_FUNC_CTRL;
wmt_params.op = BTMTK_WMT_FUNC_CTRL;
wmt_params.flag = 0;
wmt_params.dlen = sizeof(param);
wmt_params.data = &param;
@ -846,7 +717,7 @@ static int btmtkuart_shutdown(struct hci_dev *hdev)
int err;
/* Disable the device */
wmt_params.op = MTK_WMT_FUNC_CTRL;
wmt_params.op = BTMTK_WMT_FUNC_CTRL;
wmt_params.flag = 0;
wmt_params.dlen = sizeof(param);
wmt_params.data = &param;
@ -1131,6 +1002,3 @@ MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
MODULE_DESCRIPTION("MediaTek Bluetooth Serial driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_MT7622);
MODULE_FIRMWARE(FIRMWARE_MT7663);
MODULE_FIRMWARE(FIRMWARE_MT7668);