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Bluetooth: btnxpuart: Add support for AW693 chipset

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This adds support for NXP AW693 chipset in btnxpuart driver
by adding FW name and bootloader signature. Based on the
loader version bits 7:6 of the bootloader signature, the
driver can choose between selecting secure and non-secure
FW files.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Neeraj Sanjay Kale 2023-07-27 19:03:17 +05:30 committed by Luiz Augusto von Dentz
parent e8b5aed313
commit c55c8a7cfa
1 changed files with 31 additions and 8 deletions
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39
drivers/bluetooth/btnxpuart.c
View File

@ -29,16 +29,25 @@
#define BTNXPUART_CHECK_BOOT_SIGNATURE 3
#define BTNXPUART_SERDEV_OPEN 4
#define FIRMWARE_W8987 "nxp/uartuart8987_bt.bin"
#define FIRMWARE_W8997 "nxp/uartuart8997_bt_v4.bin"
#define FIRMWARE_W9098 "nxp/uartuart9098_bt_v1.bin"
#define FIRMWARE_IW416 "nxp/uartiw416_bt_v0.bin"
#define FIRMWARE_IW612 "nxp/uartspi_n61x_v1.bin.se"
#define FIRMWARE_HELPER "nxp/helper_uart_3000000.bin"
#define FIRMWARE_W8987 "nxp/uartuart8987_bt.bin"
#define FIRMWARE_W8997 "nxp/uartuart8997_bt_v4.bin"
#define FIRMWARE_W9098 "nxp/uartuart9098_bt_v1.bin"
#define FIRMWARE_IW416 "nxp/uartiw416_bt_v0.bin"
#define FIRMWARE_IW612 "nxp/uartspi_n61x_v1.bin.se"
#define FIRMWARE_AW693 "nxp/uartaw693_bt.bin"
#define FIRMWARE_SECURE_AW693 "nxp/uartaw693_bt.bin.se"
#define FIRMWARE_HELPER "nxp/helper_uart_3000000.bin"
#define CHIP_ID_W9098 0x5c03
#define CHIP_ID_IW416 0x7201
#define CHIP_ID_IW612 0x7601
#define CHIP_ID_AW693 0x8200
#define FW_SECURE_MASK 0xc0
#define FW_OPEN 0x00
#define FW_AUTH_ILLEGAL 0x40
#define FW_AUTH_PLAIN 0x80
#define FW_AUTH_ENC 0xc0
#define HCI_NXP_PRI_BAUDRATE 115200
#define HCI_NXP_SEC_BAUDRATE 3000000
@ -665,6 +674,9 @@ static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name)
struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
int err = 0;
if (!fw_name)
return -ENOENT;
if (!strlen(nxpdev->fw_name)) {
snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "%s", fw_name);
@ -812,7 +824,8 @@ free_skb:
return 0;
}
static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid)
static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
u8 loader_ver)
{
char *fw_name = NULL;
@ -826,6 +839,14 @@ static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid)
case CHIP_ID_IW612:
fw_name = FIRMWARE_IW612;
break;
case CHIP_ID_AW693:
if ((loader_ver & FW_SECURE_MASK) == FW_OPEN)
fw_name = FIRMWARE_AW693;
else if ((loader_ver & FW_SECURE_MASK) != FW_AUTH_ILLEGAL)
fw_name = FIRMWARE_SECURE_AW693;
else
bt_dev_err(hdev, "Illegal loader version %02x", loader_ver);
break;
default:
bt_dev_err(hdev, "Unknown chip signature %04x", chipid);
break;
@ -838,13 +859,15 @@ static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb)
struct v3_start_ind *req = skb_pull_data(skb, sizeof(*req));
struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
u16 chip_id;
u8 loader_ver;
if (!process_boot_signature(nxpdev))
goto free_skb;
chip_id = le16_to_cpu(req->chip_id);
loader_ver = req->loader_ver;
if (!nxp_request_firmware(hdev, nxp_get_fw_name_from_chipid(hdev,
chip_id)))
chip_id, loader_ver)))
nxp_send_ack(NXP_ACK_V3, hdev);
free_skb: