1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 Mantis PCI bridge driver
4
5 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6
7*/
8
9#ifndef __MANTIS_LINK_H
10#define __MANTIS_LINK_H
11
12#include <linux/mutex.h>
13#include <linux/workqueue.h>
14#include <media/dvb_ca_en50221.h>
15
16enum mantis_sbuf_status {
17 MANTIS_SBUF_DATA_AVAIL = 1,
18 MANTIS_SBUF_DATA_EMPTY = 2,
19 MANTIS_SBUF_DATA_OVFLW = 3
20};
21
22struct mantis_slot {
23 u32 timeout;
24 u32 slave_cfg;
25 u32 bar;
26};
27
28/* Physical layer */
29enum mantis_slot_state {
30 MODULE_INSERTED = 3,
31 MODULE_XTRACTED = 4
32};
33
34struct mantis_ca {
35 struct mantis_slot slot[4];
36
37 struct work_struct hif_evm_work;
38
39 u32 hif_event;
40 wait_queue_head_t hif_opdone_wq;
41 wait_queue_head_t hif_brrdyw_wq;
42 wait_queue_head_t hif_data_wq;
43 wait_queue_head_t hif_write_wq; /* HIF Write op */
44
45 enum mantis_sbuf_status sbuf_status;
46
47 enum mantis_slot_state slot_state;
48
49 void *ca_priv;
50
51 struct dvb_ca_en50221 en50221;
52 struct mutex ca_lock;
53};
54
55/* CA */
56extern void mantis_event_cam_plugin(struct mantis_ca *ca);
57extern void mantis_event_cam_unplug(struct mantis_ca *ca);
58extern int mantis_pcmcia_init(struct mantis_ca *ca);
59extern void mantis_pcmcia_exit(struct mantis_ca *ca);
60extern int mantis_evmgr_init(struct mantis_ca *ca);
61extern void mantis_evmgr_exit(struct mantis_ca *ca);
62
63/* HIF */
64extern int mantis_hif_init(struct mantis_ca *ca);
65extern void mantis_hif_exit(struct mantis_ca *ca);
66extern int mantis_hif_read_mem(struct mantis_ca *ca, u32 addr);
67extern int mantis_hif_write_mem(struct mantis_ca *ca, u32 addr, u8 data);
68extern int mantis_hif_read_iom(struct mantis_ca *ca, u32 addr);
69extern int mantis_hif_write_iom(struct mantis_ca *ca, u32 addr, u8 data);
70
71#endif /* __MANTIS_LINK_H */
72

source code of linux/drivers/media/pci/mantis/mantis_link.h