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 | |
27 | static 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(pubca: &ca->en50221, |
42 | slot: 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(pubca: &ca->en50221, |
51 | slot: 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 | |
85 | int 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(work: &ca->hif_evm_work); |
93 | mantis_hif_init(ca); |
94 | return 0; |
95 | } |
96 | |
97 | void 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(work: &ca->hif_evm_work); |
103 | mantis_hif_exit(ca); |
104 | mantis_pcmcia_exit(ca); |
105 | } |
106 | |