// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 MediaTek Inc. /* * Bluetooth support for MediaTek SDIO devices * * This file is written based on btsdio.c and btmtkuart.c. * * Author: Sean Wang <[email protected]> * */ #include <asm/unaligned.h> #include <linux/atomic.h> #include <linux/gpio/consumer.h> #include <linux/init.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/pm_runtime.h> #include <linux/skbuff.h> #include <linux/usb.h> #include <linux/mmc/host.h> #include <linux/mmc/sdio_ids.h> #include <linux/mmc/sdio_func.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include "h4_recv.h" #include "btmtk.h" #define VERSION … #define MTKBTSDIO_AUTOSUSPEND_DELAY … static bool enable_autosuspend = …; struct btmtksdio_data { … }; static const struct btmtksdio_data mt7663_data = …; static const struct btmtksdio_data mt7668_data = …; static const struct btmtksdio_data mt7921_data = …; static const struct sdio_device_id btmtksdio_table[] = …; MODULE_DEVICE_TABLE(sdio, btmtksdio_table); #define MTK_REG_CHLPCR … #define C_INT_EN_SET … #define C_INT_EN_CLR … #define C_FW_OWN_REQ_SET … #define C_COM_DRV_OWN … #define C_FW_OWN_REQ_CLR … #define MTK_REG_CSDIOCSR … #define SDIO_RE_INIT_EN … #define SDIO_INT_CTL … #define MTK_REG_CHCR … #define C_INT_CLR_CTRL … #define BT_RST_DONE … /* CHISR have the same bits field definition with CHIER */ #define MTK_REG_CHISR … #define MTK_REG_CHIER … #define FW_OWN_BACK_INT … #define RX_DONE_INT … #define TX_EMPTY … #define TX_FIFO_OVERFLOW … #define FW_MAILBOX_INT … #define INT_MASK … #define RX_PKT_LEN … #define MTK_REG_CSICR … #define CSICR_CLR_MBOX_ACK … #define MTK_REG_PH2DSM0R … #define PH2DSM0R_DRIVER_OWN … #define MTK_REG_PD2HRM0R … #define PD2HRM0R_DRV_OWN … #define MTK_REG_CTDR … #define MTK_REG_CRDR … #define MTK_REG_CRPLR … #define MTK_SDIO_BLOCK_SIZE … #define BTMTKSDIO_TX_WAIT_VND_EVT … #define BTMTKSDIO_HW_TX_READY … #define BTMTKSDIO_FUNC_ENABLED … #define BTMTKSDIO_PATCH_ENABLED … #define BTMTKSDIO_HW_RESET_ACTIVE … #define BTMTKSDIO_BT_WAKE_ENABLED … struct mtkbtsdio_hdr { … } __packed; struct btmtksdio_dev { … }; static int mtk_hci_wmt_sync(struct hci_dev *hdev, struct btmtk_hci_wmt_params *wmt_params) { … } static int btmtksdio_tx_packet(struct btmtksdio_dev *bdev, struct sk_buff *skb) { … } static u32 btmtksdio_drv_own_query(struct btmtksdio_dev *bdev) { … } static u32 btmtksdio_drv_own_query_79xx(struct btmtksdio_dev *bdev) { … } static u32 btmtksdio_chcr_query(struct btmtksdio_dev *bdev) { … } static int btmtksdio_fw_pmctrl(struct btmtksdio_dev *bdev) { … } static int btmtksdio_drv_pmctrl(struct btmtksdio_dev *bdev) { … } static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb) { … } static int btmtksdio_recv_acl(struct hci_dev *hdev, struct sk_buff *skb) { … } static const struct h4_recv_pkt mtk_recv_pkts[] = …; static int btmtksdio_rx_packet(struct btmtksdio_dev *bdev, u16 rx_size) { … } static void btmtksdio_txrx_work(struct work_struct *work) { … } static void btmtksdio_interrupt(struct sdio_func *func) { … } static int btmtksdio_open(struct hci_dev *hdev) { … } static int btmtksdio_close(struct hci_dev *hdev) { … } static int btmtksdio_flush(struct hci_dev *hdev) { … } static int btmtksdio_func_query(struct hci_dev *hdev) { … } static int mt76xx_setup(struct hci_dev *hdev, const char *fwname) { … } static int mt79xx_setup(struct hci_dev *hdev, const char *fwname) { … } static int btmtksdio_mtk_reg_read(struct hci_dev *hdev, u32 reg, u32 *val) { … } static int btmtksdio_mtk_reg_write(struct hci_dev *hdev, u32 reg, u32 val, u32 mask) { … } static int btmtksdio_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id) { … } static int btmtksdio_get_codec_config_data(struct hci_dev *hdev, __u8 link, struct bt_codec *codec, __u8 *ven_len, __u8 **ven_data) { … } static int btmtksdio_sco_setting(struct hci_dev *hdev) { … } static int btmtksdio_reset_setting(struct hci_dev *hdev) { … } static int btmtksdio_setup(struct hci_dev *hdev) { … } static int btmtksdio_shutdown(struct hci_dev *hdev) { … } static int btmtksdio_send_frame(struct hci_dev *hdev, struct sk_buff *skb) { … } static void btmtksdio_cmd_timeout(struct hci_dev *hdev) { … } static bool btmtksdio_sdio_inband_wakeup(struct hci_dev *hdev) { … } static bool btmtksdio_sdio_wakeup(struct hci_dev *hdev) { … } static int btmtksdio_probe(struct sdio_func *func, const struct sdio_device_id *id) { … } static void btmtksdio_remove(struct sdio_func *func) { … } #ifdef CONFIG_PM static int btmtksdio_runtime_suspend(struct device *dev) { … } static int btmtksdio_system_suspend(struct device *dev) { … } static int btmtksdio_runtime_resume(struct device *dev) { … } static int btmtksdio_system_resume(struct device *dev) { … } static const struct dev_pm_ops btmtksdio_pm_ops = …; #define BTMTKSDIO_PM_OPS … #else /* CONFIG_PM */ #define BTMTKSDIO_PM_OPS … #endif /* CONFIG_PM */ static struct sdio_driver btmtksdio_driver = …; module_sdio_driver(…) …; module_param(enable_autosuspend, bool, 0644); MODULE_PARM_DESC(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_VERSION(…); MODULE_LICENSE(…) …;
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