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#include <linux/kernel.h>
10
11#include <linux/signal.h>
12#include <linux/sched.h>
13#include <linux/interrupt.h>
14#include <asm/io.h>
15
16#include <media/dmxdev.h>
17#include <media/dvbdev.h>
18#include <media/dvb_demux.h>
19#include <media/dvb_frontend.h>
20#include <media/dvb_net.h>
21
22#include "mantis_common.h"
23#include "mantis_link.h"
24#include "mantis_hif.h"
25#include "mantis_reg.h"
26
27static void mantis_hifevm_work(struct work_struct *work)
28{
29	struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
30	struct mantis_pci *mantis = ca->ca_priv;
31
32	u32 gpif_stat;
33
34	gpif_stat = mmread(MANTIS_GPIF_STATUS);
35
36	if (gpif_stat & MANTIS_GPIF_DETSTAT) {
37		if (gpif_stat & MANTIS_CARD_PLUGIN) {
38			dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
39			mmwrite(0xdada0000, MANTIS_CARD_RESET);
40			mantis_event_cam_plugin(ca);
41			dvb_ca_en50221_camchange_irq(&ca->en50221,
42						     0,
43						     DVB_CA_EN50221_CAMCHANGE_INSERTED);
44		}
45	} else {
46		if (gpif_stat & MANTIS_CARD_PLUGOUT) {
47			dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
48			mmwrite(0xdada0000, MANTIS_CARD_RESET);
49			mantis_event_cam_unplug(ca);
50			dvb_ca_en50221_camchange_irq(&ca->en50221,
51						     0,
52						     DVB_CA_EN50221_CAMCHANGE_REMOVED);
53		}
54	}
55
56	if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
57		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
58
59	if (mantis->gpif_status & MANTIS_SBUF_WSTO)
60		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
61
62	if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
63		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
64
65	if (gpif_stat & MANTIS_SBUF_OVFLW)
66		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
67
68	if (gpif_stat & MANTIS_GPIF_BRRDY)
69		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
70
71	if (gpif_stat & MANTIS_GPIF_INTSTAT)
72		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
73
74	if (gpif_stat & MANTIS_SBUF_EMPTY)
75		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
76
77	if (gpif_stat & MANTIS_SBUF_OPDONE) {
78		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
79		ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
80		ca->hif_event = MANTIS_SBUF_OPDONE;
81		wake_up(&ca->hif_opdone_wq);
82	}
83}
84
85int mantis_evmgr_init(struct mantis_ca *ca)
86{
87	struct mantis_pci *mantis = ca->ca_priv;
88
89	dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
90	INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
91	mantis_pcmcia_init(ca);
92	schedule_work(&ca->hif_evm_work);
93	mantis_hif_init(ca);
94	return 0;
95}
96
97void mantis_evmgr_exit(struct mantis_ca *ca)
98{
99	struct mantis_pci *mantis = ca->ca_priv;
100
101	dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
102	flush_work(&ca->hif_evm_work);
103	mantis_hif_exit(ca);
104	mantis_pcmcia_exit(ca);
105}
106