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
27 #include "dmxdev.h"
28 #include "dvbdev.h"
29 #include "dvb_demux.h"
30 #include "dvb_frontend.h"
31 #include "dvb_net.h"
32
33 #include "mantis_common.h"
34 #include "mantis_link.h"
35 #include "mantis_hif.h"
36 #include "mantis_reg.h"
37
mantis_hifevm_work(struct work_struct * work)38 static void mantis_hifevm_work(struct work_struct *work)
39 {
40 struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work);
41 struct mantis_pci *mantis = ca->ca_priv;
42
43 u32 gpif_stat, gpif_mask;
44
45 gpif_stat = mmread(MANTIS_GPIF_STATUS);
46 gpif_mask = mmread(MANTIS_GPIF_IRQCFG);
47
48 if (gpif_stat & MANTIS_GPIF_DETSTAT) {
49 if (gpif_stat & MANTIS_CARD_PLUGIN) {
50 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
51 mmwrite(0xdada0000, MANTIS_CARD_RESET);
52 mantis_event_cam_plugin(ca);
53 dvb_ca_en50221_camchange_irq(&ca->en50221,
54 0,
55 DVB_CA_EN50221_CAMCHANGE_INSERTED);
56 }
57 } else {
58 if (gpif_stat & MANTIS_CARD_PLUGOUT) {
59 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
60 mmwrite(0xdada0000, MANTIS_CARD_RESET);
61 mantis_event_cam_unplug(ca);
62 dvb_ca_en50221_camchange_irq(&ca->en50221,
63 0,
64 DVB_CA_EN50221_CAMCHANGE_REMOVED);
65 }
66 }
67
68 if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
69 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);
70
71 if (mantis->gpif_status & MANTIS_SBUF_WSTO)
72 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);
73
74 if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
75 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);
76
77 if (gpif_stat & MANTIS_SBUF_OVFLW)
78 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);
79
80 if (gpif_stat & MANTIS_GPIF_BRRDY)
81 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);
82
83 if (gpif_stat & MANTIS_GPIF_INTSTAT)
84 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);
85
86 if (gpif_stat & MANTIS_SBUF_EMPTY)
87 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);
88
89 if (gpif_stat & MANTIS_SBUF_OPDONE) {
90 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
91 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
92 ca->hif_event = MANTIS_SBUF_OPDONE;
93 wake_up(&ca->hif_opdone_wq);
94 }
95 }
96
mantis_evmgr_init(struct mantis_ca * ca)97 int mantis_evmgr_init(struct mantis_ca *ca)
98 {
99 struct mantis_pci *mantis = ca->ca_priv;
100
101 dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
102 INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
103 mantis_pcmcia_init(ca);
104 schedule_work(&ca->hif_evm_work);
105 mantis_hif_init(ca);
106 return 0;
107 }
108
mantis_evmgr_exit(struct mantis_ca * ca)109 void mantis_evmgr_exit(struct mantis_ca *ca)
110 {
111 struct mantis_pci *mantis = ca->ca_priv;
112
113 dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
114 flush_work_sync(&ca->hif_evm_work);
115 mantis_hif_exit(ca);
116 mantis_pcmcia_exit(ca);
117 }
118