2 Mantis PCI bridge driver
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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.
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.
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.
21 #include <linux/signal.h>
22 #include <linux/slab.h>
23 #include <linux/sched.h>
24 #include <linux/interrupt.h>
27 #include <media/dmxdev.h>
28 #include <media/dvbdev.h>
29 #include <media/dvb_demux.h>
30 #include <media/dvb_frontend.h>
31 #include <media/dvb_net.h>
33 #include "mantis_common.h"
34 #include "mantis_link.h"
35 #include "mantis_hif.h"
36 #include "mantis_reg.h"
38 #include "mantis_ca.h"
40 static int mantis_ca_read_attr_mem(struct dvb_ca_en50221
*en50221
, int slot
, int addr
)
42 struct mantis_ca
*ca
= en50221
->data
;
43 struct mantis_pci
*mantis
= ca
->ca_priv
;
45 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Request Attribute Mem Read", slot
);
50 return mantis_hif_read_mem(ca
, addr
);
53 static int mantis_ca_write_attr_mem(struct dvb_ca_en50221
*en50221
, int slot
, int addr
, u8 data
)
55 struct mantis_ca
*ca
= en50221
->data
;
56 struct mantis_pci
*mantis
= ca
->ca_priv
;
58 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Request Attribute Mem Write", slot
);
63 return mantis_hif_write_mem(ca
, addr
, data
);
66 static int mantis_ca_read_cam_ctl(struct dvb_ca_en50221
*en50221
, int slot
, u8 addr
)
68 struct mantis_ca
*ca
= en50221
->data
;
69 struct mantis_pci
*mantis
= ca
->ca_priv
;
71 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Request CAM control Read", slot
);
76 return mantis_hif_read_iom(ca
, addr
);
79 static int mantis_ca_write_cam_ctl(struct dvb_ca_en50221
*en50221
, int slot
, u8 addr
, u8 data
)
81 struct mantis_ca
*ca
= en50221
->data
;
82 struct mantis_pci
*mantis
= ca
->ca_priv
;
84 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Request CAM control Write", slot
);
89 return mantis_hif_write_iom(ca
, addr
, data
);
92 static int mantis_ca_slot_reset(struct dvb_ca_en50221
*en50221
, int slot
)
94 struct mantis_ca
*ca
= en50221
->data
;
95 struct mantis_pci
*mantis
= ca
->ca_priv
;
97 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Slot RESET", slot
);
98 udelay(500); /* Wait.. */
99 mmwrite(0xda, MANTIS_PCMCIA_RESET
); /* Leading edge assert */
101 mmwrite(0x00, MANTIS_PCMCIA_RESET
); /* Trailing edge deassert */
103 dvb_ca_en50221_camready_irq(&ca
->en50221
, 0);
108 static int mantis_ca_slot_shutdown(struct dvb_ca_en50221
*en50221
, int slot
)
110 struct mantis_ca
*ca
= en50221
->data
;
111 struct mantis_pci
*mantis
= ca
->ca_priv
;
113 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Slot shutdown", slot
);
118 static int mantis_ts_control(struct dvb_ca_en50221
*en50221
, int slot
)
120 struct mantis_ca
*ca
= en50221
->data
;
121 struct mantis_pci
*mantis
= ca
->ca_priv
;
123 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): TS control", slot
);
124 /* mantis_set_direction(mantis, 1); */ /* Enable TS through CAM */
129 static int mantis_slot_status(struct dvb_ca_en50221
*en50221
, int slot
, int open
)
131 struct mantis_ca
*ca
= en50221
->data
;
132 struct mantis_pci
*mantis
= ca
->ca_priv
;
134 dprintk(MANTIS_DEBUG
, 1, "Slot(%d): Poll Slot status", slot
);
136 if (ca
->slot_state
== MODULE_INSERTED
) {
137 dprintk(MANTIS_DEBUG
, 1, "CA Module present and ready");
138 return DVB_CA_EN50221_POLL_CAM_PRESENT
| DVB_CA_EN50221_POLL_CAM_READY
;
140 dprintk(MANTIS_DEBUG
, 1, "CA Module not present or not ready");
146 int mantis_ca_init(struct mantis_pci
*mantis
)
148 struct dvb_adapter
*dvb_adapter
= &mantis
->dvb_adapter
;
149 struct mantis_ca
*ca
;
150 int ca_flags
= 0, result
;
152 dprintk(MANTIS_DEBUG
, 1, "Initializing Mantis CA");
153 ca
= kzalloc(sizeof(struct mantis_ca
), GFP_KERNEL
);
155 dprintk(MANTIS_ERROR
, 1, "Out of memory!, exiting ..");
160 ca
->ca_priv
= mantis
;
161 mantis
->mantis_ca
= ca
;
162 ca_flags
= DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE
;
163 /* register CA interface */
164 ca
->en50221
.owner
= THIS_MODULE
;
165 ca
->en50221
.read_attribute_mem
= mantis_ca_read_attr_mem
;
166 ca
->en50221
.write_attribute_mem
= mantis_ca_write_attr_mem
;
167 ca
->en50221
.read_cam_control
= mantis_ca_read_cam_ctl
;
168 ca
->en50221
.write_cam_control
= mantis_ca_write_cam_ctl
;
169 ca
->en50221
.slot_reset
= mantis_ca_slot_reset
;
170 ca
->en50221
.slot_shutdown
= mantis_ca_slot_shutdown
;
171 ca
->en50221
.slot_ts_enable
= mantis_ts_control
;
172 ca
->en50221
.poll_slot_status
= mantis_slot_status
;
173 ca
->en50221
.data
= ca
;
175 mutex_init(&ca
->ca_lock
);
177 init_waitqueue_head(&ca
->hif_data_wq
);
178 init_waitqueue_head(&ca
->hif_opdone_wq
);
179 init_waitqueue_head(&ca
->hif_write_wq
);
181 dprintk(MANTIS_ERROR
, 1, "Registering EN50221 device");
182 result
= dvb_ca_en50221_init(dvb_adapter
, &ca
->en50221
, ca_flags
, 1);
184 dprintk(MANTIS_ERROR
, 1, "EN50221: Initialization failed <%d>", result
);
187 dprintk(MANTIS_ERROR
, 1, "Registered EN50221 device");
188 mantis_evmgr_init(ca
);
194 EXPORT_SYMBOL_GPL(mantis_ca_init
);
196 void mantis_ca_exit(struct mantis_pci
*mantis
)
198 struct mantis_ca
*ca
= mantis
->mantis_ca
;
200 dprintk(MANTIS_DEBUG
, 1, "Mantis CA exit");
204 mantis_evmgr_exit(ca
);
205 dprintk(MANTIS_ERROR
, 1, "Unregistering EN50221 device");
206 dvb_ca_en50221_release(&ca
->en50221
);
210 EXPORT_SYMBOL_GPL(mantis_ca_exit
);