/* SPDX-License-Identifier: GPL-2.0-only * * Copyright (c) 2021, MediaTek Inc. * Copyright (c) 2021-2022, Intel Corporation. * * Authors: * Haijun Liu <haijun.liu@mediatek.com> * Eliot Lee <eliot.lee@intel.com> * Moises Veleta <moises.veleta@intel.com> * Ricardo Martinez <ricardo.martinez@linux.intel.com> * * Contributors: * Amir Hanania <amir.hanania@intel.com> * Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> * Sreehari Kancharla <sreehari.kancharla@intel.com> */ #ifndef __T7XX_MODEM_OPS_H__ #define __T7XX_MODEM_OPS_H__ #include <linux/spinlock.h> #include <linux/types.h> #include <linux/workqueue.h> #include "t7xx_hif_cldma.h" #include "t7xx_pci.h" #define FEATURE_COUNT 64 /** * enum hif_ex_stage - HIF exception handshake stages with the HW. * @HIF_EX_INIT: Disable and clear TXQ. * @HIF_EX_INIT_DONE: Polling for initialization to be done. * @HIF_EX_CLEARQ_DONE: Disable RX, flush TX/RX workqueues and clear RX. * @HIF_EX_ALLQ_RESET: HW is back in safe mode for re-initialization and restart. */ enum hif_ex_stage { HIF_EX_INIT, HIF_EX_INIT_DONE, HIF_EX_CLEARQ_DONE, HIF_EX_ALLQ_RESET, }; struct mtk_runtime_feature { u8 feature_id; u8 support_info; u8 reserved[2]; __le32 data_len; __le32 data[]; }; enum md_event_id { FSM_PRE_START, FSM_START, FSM_READY, }; struct t7xx_sys_info { bool ready; bool handshake_ongoing; u8 feature_set[FEATURE_COUNT]; struct t7xx_port *ctl_port; }; struct t7xx_modem { struct cldma_ctrl *md_ctrl[CLDMA_NUM]; struct t7xx_pci_dev *t7xx_dev; struct t7xx_sys_info core_md; struct t7xx_sys_info core_ap; bool md_init_finish; bool rgu_irq_asserted; struct workqueue_struct *handshake_wq; struct work_struct handshake_work; struct work_struct ap_handshake_work; struct t7xx_fsm_ctl *fsm_ctl; struct port_proxy *port_prox; unsigned int exp_id; spinlock_t exp_lock; /* Protects exception events */ }; enum reset_type { FLDR, PLDR, FASTBOOT, }; void t7xx_md_exception_handshake(struct t7xx_modem *md); void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id); int t7xx_md_reset(struct t7xx_pci_dev *t7xx_dev); int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev); void t7xx_md_exit(struct t7xx_pci_dev *t7xx_dev); void t7xx_clear_rgu_irq(struct t7xx_pci_dev *t7xx_dev); int t7xx_reset_device(struct t7xx_pci_dev *t7xx_dev, enum reset_type type); int t7xx_pci_mhccif_isr(struct t7xx_pci_dev *t7xx_dev); #endif /* __T7XX_MODEM_OPS_H__ */