1 /*
2 Mantis PCI bridge driver
3
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include <linux/kernel.h>
22
23 #include <linux/signal.h>
24 #include <linux/sched.h>
25 #include <linux/interrupt.h>
26 #include <asm/io.h>
27
28 #include "dmxdev.h"
29 #include "dvbdev.h"
30 #include "dvb_demux.h"
31 #include "dvb_frontend.h"
32 #include "dvb_net.h"
33
34 #include "mantis_common.h"
35 #include "mantis_link.h"
36 #include "mantis_hif.h"
37 #include "mantis_reg.h"
38
mantis_hifevm_work(struct work_struct * work)39 static void mantis_hifevm_work(struct work_struct *work)
40 {
41 struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
42 struct mantis_pci *mantis = ca->ca_priv;
43
44 u32 gpif_stat, gpif_mask;
45
46 gpif_stat = mmread(MANTIS_GPIF_STATUS);
47 gpif_mask = mmread(MANTIS_GPIF_IRQCFG);
48
49 if (gpif_stat & MANTIS_GPIF_DETSTAT) {
50 if (gpif_stat & MANTIS_CARD_PLUGIN) {
51 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
52 mmwrite(0xdada0000, MANTIS_CARD_RESET);
53 mantis_event_cam_plugin(ca);
54 dvb_ca_en50221_camchange_irq(&ca->en50221,
55 0,
56 DVB_CA_EN50221_CAMCHANGE_INSERTED);
57 }
58 } else {
59 if (gpif_stat & MANTIS_CARD_PLUGOUT) {
60 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
61 mmwrite(0xdada0000, MANTIS_CARD_RESET);
62 mantis_event_cam_unplug(ca);
63 dvb_ca_en50221_camchange_irq(&ca->en50221,
64 0,
65 DVB_CA_EN50221_CAMCHANGE_REMOVED);
66 }
67 }
68
69 if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
70 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
71
72 if (mantis->gpif_status & MANTIS_SBUF_WSTO)
73 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
74
75 if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
76 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
77
78 if (gpif_stat & MANTIS_SBUF_OVFLW)
79 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
80
81 if (gpif_stat & MANTIS_GPIF_BRRDY)
82 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
83
84 if (gpif_stat & MANTIS_GPIF_INTSTAT)
85 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
86
87 if (gpif_stat & MANTIS_SBUF_EMPTY)
88 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
89
90 if (gpif_stat & MANTIS_SBUF_OPDONE) {
91 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
92 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
93 ca->hif_event = MANTIS_SBUF_OPDONE;
94 wake_up(&ca->hif_opdone_wq);
95 }
96 }
97
mantis_evmgr_init(struct mantis_ca * ca)98 int mantis_evmgr_init(struct mantis_ca *ca)
99 {
100 struct mantis_pci *mantis = ca->ca_priv;
101
102 dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
103 INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
104 mantis_pcmcia_init(ca);
105 schedule_work(&ca->hif_evm_work);
106 mantis_hif_init(ca);
107 return 0;
108 }
109
mantis_evmgr_exit(struct mantis_ca * ca)110 void mantis_evmgr_exit(struct mantis_ca *ca)
111 {
112 struct mantis_pci *mantis = ca->ca_priv;
113
114 dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
115 flush_work_sync(&ca->hif_evm_work);
116 mantis_hif_exit(ca);
117 mantis_pcmcia_exit(ca);
118 }
119