1/* SPDX-License-Identifier: GPL-2.0-only
2 *
3 * Copyright (c) 2021, MediaTek Inc.
4 * Copyright (c) 2021-2022, Intel Corporation.
5 *
6 * Authors:
7 *  Haijun Liu <haijun.liu@mediatek.com>
8 *  Eliot Lee <eliot.lee@intel.com>
9 *  Moises Veleta <moises.veleta@intel.com>
10 *  Ricardo Martinez <ricardo.martinez@linux.intel.com>
11 *
12 * Contributors:
13 *  Amir Hanania <amir.hanania@intel.com>
14 *  Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
15 *  Sreehari Kancharla <sreehari.kancharla@intel.com>
16 */
17
18#ifndef __T7XX_MODEM_OPS_H__
19#define __T7XX_MODEM_OPS_H__
20
21#include <linux/spinlock.h>
22#include <linux/types.h>
23#include <linux/workqueue.h>
24
25#include "t7xx_hif_cldma.h"
26#include "t7xx_pci.h"
27
28#define FEATURE_COUNT		64
29
30/**
31 * enum hif_ex_stage -	HIF exception handshake stages with the HW.
32 * @HIF_EX_INIT:        Disable and clear TXQ.
33 * @HIF_EX_INIT_DONE:   Polling for initialization to be done.
34 * @HIF_EX_CLEARQ_DONE: Disable RX, flush TX/RX workqueues and clear RX.
35 * @HIF_EX_ALLQ_RESET:  HW is back in safe mode for re-initialization and restart.
36 */
37enum hif_ex_stage {
38	HIF_EX_INIT,
39	HIF_EX_INIT_DONE,
40	HIF_EX_CLEARQ_DONE,
41	HIF_EX_ALLQ_RESET,
42};
43
44struct mtk_runtime_feature {
45	u8				feature_id;
46	u8				support_info;
47	u8				reserved[2];
48	__le32				data_len;
49	__le32				data[];
50};
51
52enum md_event_id {
53	FSM_PRE_START,
54	FSM_START,
55	FSM_READY,
56};
57
58struct t7xx_sys_info {
59	bool				ready;
60	bool				handshake_ongoing;
61	u8				feature_set[FEATURE_COUNT];
62	struct t7xx_port		*ctl_port;
63};
64
65struct t7xx_modem {
66	struct cldma_ctrl		*md_ctrl[CLDMA_NUM];
67	struct t7xx_pci_dev		*t7xx_dev;
68	struct t7xx_sys_info		core_md;
69	struct t7xx_sys_info		core_ap;
70	bool				md_init_finish;
71	bool				rgu_irq_asserted;
72	struct workqueue_struct		*handshake_wq;
73	struct work_struct		handshake_work;
74	struct work_struct		ap_handshake_work;
75	struct t7xx_fsm_ctl		*fsm_ctl;
76	struct port_proxy		*port_prox;
77	unsigned int			exp_id;
78	spinlock_t			exp_lock; /* Protects exception events */
79};
80
81void t7xx_md_exception_handshake(struct t7xx_modem *md);
82void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id);
83int t7xx_md_reset(struct t7xx_pci_dev *t7xx_dev);
84int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev);
85void t7xx_md_exit(struct t7xx_pci_dev *t7xx_dev);
86void t7xx_clear_rgu_irq(struct t7xx_pci_dev *t7xx_dev);
87int t7xx_acpi_fldr_func(struct t7xx_pci_dev *t7xx_dev);
88int t7xx_acpi_pldr_func(struct t7xx_pci_dev *t7xx_dev);
89int t7xx_pci_mhccif_isr(struct t7xx_pci_dev *t7xx_dev);
90
91#endif	/* __T7XX_MODEM_OPS_H__ */
92