// SPDX-License-Identifier: GPL-2.0-or-later /* * NXP Bluetooth driver * Copyright 2023 NXP */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/serdev.h> #include <linux/of.h> #include <linux/skbuff.h> #include <asm/unaligned.h> #include <linux/firmware.h> #include <linux/string.h> #include <linux/crc8.h> #include <linux/crc32.h> #include <linux/string_helpers.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include "h4_recv.h" #define MANUFACTURER_NXP … #define BTNXPUART_TX_STATE_ACTIVE … #define BTNXPUART_FW_DOWNLOADING … #define BTNXPUART_CHECK_BOOT_SIGNATURE … #define BTNXPUART_SERDEV_OPEN … #define BTNXPUART_IR_IN_PROGRESS … #define BTNXPUART_FW_DOWNLOAD_ABORT … /* NXP HW err codes */ #define BTNXPUART_IR_HW_ERR … #define FIRMWARE_W8987 … #define FIRMWARE_W8987_OLD … #define FIRMWARE_W8997 … #define FIRMWARE_W8997_OLD … #define FIRMWARE_W9098 … #define FIRMWARE_W9098_OLD … #define FIRMWARE_IW416 … #define FIRMWARE_IW612 … #define FIRMWARE_IW615 … #define FIRMWARE_SECURE_IW615 … #define FIRMWARE_IW624 … #define FIRMWARE_SECURE_IW624 … #define FIRMWARE_AW693 … #define FIRMWARE_SECURE_AW693 … #define FIRMWARE_AW693_A1 … #define FIRMWARE_SECURE_AW693_A1 … #define FIRMWARE_HELPER … #define CHIP_ID_W9098 … #define CHIP_ID_IW416 … #define CHIP_ID_IW612 … #define CHIP_ID_IW624a … #define CHIP_ID_IW624c … #define CHIP_ID_AW693a0 … #define CHIP_ID_AW693a1 … #define CHIP_ID_IW615a0 … #define CHIP_ID_IW615a1 … #define FW_SECURE_MASK … #define FW_OPEN … #define FW_AUTH_ILLEGAL … #define FW_AUTH_PLAIN … #define FW_AUTH_ENC … #define HCI_NXP_PRI_BAUDRATE … #define HCI_NXP_SEC_BAUDRATE … #define MAX_FW_FILE_NAME_LEN … /* Default ps timeout period in milliseconds */ #define PS_DEFAULT_TIMEOUT_PERIOD_MS … /* wakeup methods */ #define WAKEUP_METHOD_DTR … #define WAKEUP_METHOD_BREAK … #define WAKEUP_METHOD_EXT_BREAK … #define WAKEUP_METHOD_RTS … #define WAKEUP_METHOD_INVALID … /* power save mode status */ #define PS_MODE_DISABLE … #define PS_MODE_ENABLE … /* Power Save Commands to ps_work_func */ #define PS_CMD_EXIT_PS … #define PS_CMD_ENTER_PS … /* power save state */ #define PS_STATE_AWAKE … #define PS_STATE_SLEEP … /* Bluetooth vendor command : Sleep mode */ #define HCI_NXP_AUTO_SLEEP_MODE … /* Bluetooth vendor command : Wakeup method */ #define HCI_NXP_WAKEUP_METHOD … /* Bluetooth vendor command : Set operational baudrate */ #define HCI_NXP_SET_OPER_SPEED … /* Bluetooth vendor command: Independent Reset */ #define HCI_NXP_IND_RESET … /* Bluetooth Power State : Vendor cmd params */ #define BT_PS_ENABLE … #define BT_PS_DISABLE … /* Bluetooth Host Wakeup Methods */ #define BT_HOST_WAKEUP_METHOD_NONE … #define BT_HOST_WAKEUP_METHOD_DTR … #define BT_HOST_WAKEUP_METHOD_BREAK … #define BT_HOST_WAKEUP_METHOD_GPIO … /* Bluetooth Chip Wakeup Methods */ #define BT_CTRL_WAKEUP_METHOD_DSR … #define BT_CTRL_WAKEUP_METHOD_BREAK … #define BT_CTRL_WAKEUP_METHOD_GPIO … #define BT_CTRL_WAKEUP_METHOD_EXT_BREAK … #define BT_CTRL_WAKEUP_METHOD_RTS … struct ps_data { … }; struct wakeup_cmd_payload { … } __packed; struct psmode_cmd_payload { … } __packed; struct btnxpuart_data { … }; struct btnxpuart_dev { … }; #define NXP_V1_FW_REQ_PKT … #define NXP_V1_CHIP_VER_PKT … #define NXP_V3_FW_REQ_PKT … #define NXP_V3_CHIP_VER_PKT … #define NXP_ACK_V1 … #define NXP_NAK_V1 … #define NXP_ACK_V3 … #define NXP_NAK_V3 … #define NXP_CRC_ERROR_V3 … /* Bootloader signature error codes */ #define NXP_ACK_RX_TIMEOUT … #define NXP_HDR_RX_TIMEOUT … #define NXP_DATA_RX_TIMEOUT … #define HDR_LEN … #define NXP_RECV_CHIP_VER_V1 … #define NXP_RECV_FW_REQ_V1 … #define NXP_RECV_CHIP_VER_V3 … #define NXP_RECV_FW_REQ_V3 … struct v1_data_req { … } __packed; struct v1_start_ind { … } __packed; struct v3_data_req { … } __packed; struct v3_start_ind { … } __packed; /* UART register addresses of BT chip */ #define CLKDIVADDR … #define UARTDIVADDR … #define UARTMCRADDR … #define UARTREINITADDR … #define UARTICRADDR … #define UARTFCRADDR … #define MCR … #define INIT … #define ICR … #define FCR … #define POLYNOMIAL8 … struct uart_reg { … } __packed; struct uart_config { … } __packed; struct nxp_bootloader_cmd { … } __packed; struct nxp_v3_rx_timeout_nak { … } __packed; nxp_v3_rx_timeout_nak_u; static u8 crc8_table[CRC8_TABLE_SIZE]; /* Default configurations */ #define DEFAULT_H2C_WAKEUP_MODE … #define DEFAULT_PS_MODE … #define FW_INIT_BAUDRATE … static struct sk_buff *nxp_drv_send_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, void *param) { … } static void btnxpuart_tx_wakeup(struct btnxpuart_dev *nxpdev) { … } /* NXP Power Save Feature */ static void ps_start_timer(struct btnxpuart_dev *nxpdev) { … } static void ps_cancel_timer(struct btnxpuart_dev *nxpdev) { … } static void ps_control(struct hci_dev *hdev, u8 ps_state) { … } static void ps_work_func(struct work_struct *work) { … } static void ps_timeout_func(struct timer_list *t) { … } static void ps_setup(struct hci_dev *hdev) { … } static bool ps_wakeup(struct btnxpuart_dev *nxpdev) { … } static int send_ps_cmd(struct hci_dev *hdev, void *data) { … } static int send_wakeup_method_cmd(struct hci_dev *hdev, void *data) { … } static void ps_init(struct hci_dev *hdev) { … } /* NXP Firmware Download Feature */ static int nxp_download_firmware(struct hci_dev *hdev) { … } static void nxp_send_ack(u8 ack, struct hci_dev *hdev) { … } static bool nxp_fw_change_baudrate(struct hci_dev *hdev, u16 req_len) { … } static bool nxp_fw_change_timeout(struct hci_dev *hdev, u16 req_len) { … } static u32 nxp_get_data_len(const u8 *buf) { … } static bool is_fw_downloading(struct btnxpuart_dev *nxpdev) { … } static bool process_boot_signature(struct btnxpuart_dev *nxpdev) { … } static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name, const char *fw_name_old) { … } /* for legacy chipsets with V1 bootloader */ static int nxp_recv_chip_ver_v1(struct hci_dev *hdev, struct sk_buff *skb) { … } static int nxp_recv_fw_req_v1(struct hci_dev *hdev, struct sk_buff *skb) { … } static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid, u8 loader_ver) { … } static char *nxp_get_old_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid, u8 loader_ver) { … } static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb) { … } static void nxp_handle_fw_download_error(struct hci_dev *hdev, struct v3_data_req *req) { … } static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb) { … } static int nxp_set_baudrate_cmd(struct hci_dev *hdev, void *data) { … } static int nxp_check_boot_sign(struct btnxpuart_dev *nxpdev) { … } static int nxp_set_ind_reset(struct hci_dev *hdev, void *data) { … } /* NXP protocol */ static int nxp_setup(struct hci_dev *hdev) { … } static void nxp_hw_err(struct hci_dev *hdev, u8 code) { … } static int nxp_shutdown(struct hci_dev *hdev) { … } static int btnxpuart_queue_skb(struct hci_dev *hdev, struct sk_buff *skb) { … } static int nxp_enqueue(struct hci_dev *hdev, struct sk_buff *skb) { … } static struct sk_buff *nxp_dequeue(void *data) { … } /* btnxpuart based on serdev */ static void btnxpuart_tx_work(struct work_struct *work) { … } static int btnxpuart_open(struct hci_dev *hdev) { … } static int btnxpuart_close(struct hci_dev *hdev) { … } static int btnxpuart_flush(struct hci_dev *hdev) { … } static const struct h4_recv_pkt nxp_recv_pkts[] = …; static size_t btnxpuart_receive_buf(struct serdev_device *serdev, const u8 *data, size_t count) { … } static void btnxpuart_write_wakeup(struct serdev_device *serdev) { … } static const struct serdev_device_ops btnxpuart_client_ops = …; static int nxp_serdev_probe(struct serdev_device *serdev) { … } static void nxp_serdev_remove(struct serdev_device *serdev) { … } #ifdef CONFIG_PM_SLEEP static int nxp_serdev_suspend(struct device *dev) { … } static int nxp_serdev_resume(struct device *dev) { … } #endif static struct btnxpuart_data w8987_data __maybe_unused = …; static struct btnxpuart_data w8997_data __maybe_unused = …; static const struct of_device_id nxpuart_of_match_table[] __maybe_unused = …; MODULE_DEVICE_TABLE(of, nxpuart_of_match_table); static const struct dev_pm_ops nxp_pm_ops = …; static struct serdev_device_driver nxp_serdev_driver = …; module_serdev_device_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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