1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun Mantis PCI bridge driver
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/signal.h>
12*4882a593Smuzhiyun #include <linux/sched.h>
13*4882a593Smuzhiyun #include <linux/interrupt.h>
14*4882a593Smuzhiyun #include <asm/io.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include <media/dmxdev.h>
17*4882a593Smuzhiyun #include <media/dvbdev.h>
18*4882a593Smuzhiyun #include <media/dvb_demux.h>
19*4882a593Smuzhiyun #include <media/dvb_frontend.h>
20*4882a593Smuzhiyun #include <media/dvb_net.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include "mantis_common.h"
23*4882a593Smuzhiyun #include "mantis_link.h"
24*4882a593Smuzhiyun #include "mantis_hif.h"
25*4882a593Smuzhiyun #include "mantis_reg.h"
26*4882a593Smuzhiyun
mantis_hifevm_work(struct work_struct * work)27*4882a593Smuzhiyun static void mantis_hifevm_work(struct work_struct *work)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
30*4882a593Smuzhiyun struct mantis_pci *mantis = ca->ca_priv;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun u32 gpif_stat;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun gpif_stat = mmread(MANTIS_GPIF_STATUS);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun if (gpif_stat & MANTIS_GPIF_DETSTAT) {
37*4882a593Smuzhiyun if (gpif_stat & MANTIS_CARD_PLUGIN) {
38*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
39*4882a593Smuzhiyun mmwrite(0xdada0000, MANTIS_CARD_RESET);
40*4882a593Smuzhiyun mantis_event_cam_plugin(ca);
41*4882a593Smuzhiyun dvb_ca_en50221_camchange_irq(&ca->en50221,
42*4882a593Smuzhiyun 0,
43*4882a593Smuzhiyun DVB_CA_EN50221_CAMCHANGE_INSERTED);
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun } else {
46*4882a593Smuzhiyun if (gpif_stat & MANTIS_CARD_PLUGOUT) {
47*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
48*4882a593Smuzhiyun mmwrite(0xdada0000, MANTIS_CARD_RESET);
49*4882a593Smuzhiyun mantis_event_cam_unplug(ca);
50*4882a593Smuzhiyun dvb_ca_en50221_camchange_irq(&ca->en50221,
51*4882a593Smuzhiyun 0,
52*4882a593Smuzhiyun DVB_CA_EN50221_CAMCHANGE_REMOVED);
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
57*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun if (mantis->gpif_status & MANTIS_SBUF_WSTO)
60*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
63*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun if (gpif_stat & MANTIS_SBUF_OVFLW)
66*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun if (gpif_stat & MANTIS_GPIF_BRRDY)
69*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun if (gpif_stat & MANTIS_GPIF_INTSTAT)
72*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun if (gpif_stat & MANTIS_SBUF_EMPTY)
75*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun if (gpif_stat & MANTIS_SBUF_OPDONE) {
78*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
79*4882a593Smuzhiyun ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
80*4882a593Smuzhiyun ca->hif_event = MANTIS_SBUF_OPDONE;
81*4882a593Smuzhiyun wake_up(&ca->hif_opdone_wq);
82*4882a593Smuzhiyun }
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
mantis_evmgr_init(struct mantis_ca * ca)85*4882a593Smuzhiyun int mantis_evmgr_init(struct mantis_ca *ca)
86*4882a593Smuzhiyun {
87*4882a593Smuzhiyun struct mantis_pci *mantis = ca->ca_priv;
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
90*4882a593Smuzhiyun INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
91*4882a593Smuzhiyun mantis_pcmcia_init(ca);
92*4882a593Smuzhiyun schedule_work(&ca->hif_evm_work);
93*4882a593Smuzhiyun mantis_hif_init(ca);
94*4882a593Smuzhiyun return 0;
95*4882a593Smuzhiyun }
96*4882a593Smuzhiyun
mantis_evmgr_exit(struct mantis_ca * ca)97*4882a593Smuzhiyun void mantis_evmgr_exit(struct mantis_ca *ca)
98*4882a593Smuzhiyun {
99*4882a593Smuzhiyun struct mantis_pci *mantis = ca->ca_priv;
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
102*4882a593Smuzhiyun flush_work(&ca->hif_evm_work);
103*4882a593Smuzhiyun mantis_hif_exit(ca);
104*4882a593Smuzhiyun mantis_pcmcia_exit(ca);
105*4882a593Smuzhiyun }
106