1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the remote control of SAA7146 based AV7110 cards
*
* Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de>
* Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.de>
* Copyright (C) 2019 Sean Young <sean@mess.org>
*/
#include <linux/kernel.h>
#include <media/rc-core.h>
#include "av7110.h"
#include "av7110_hw.h"
#define IR_RC5 0
#define IR_RCMM 1
#define IR_RC5_EXT 2 /* internal only */
/* interrupt handler */
void av7110_ir_handler(struct av7110 *av7110, u32 ircom)
{
struct rc_dev *rcdev = av7110->ir.rcdev;
enum rc_proto proto;
u32 command, addr, scancode;
u32 toggle;
dprintk(4, "ir command = %08x\n", ircom);
if (rcdev) {
switch (av7110->ir.ir_config) {
case IR_RC5: /* RC5: 5 bits device address, 6 bits command */
command = ircom & 0x3f;
addr = (ircom >> 6) & 0x1f;
scancode = RC_SCANCODE_RC5(addr, command);
toggle = ircom & 0x0800;
proto = RC_PROTO_RC5;
break;
case IR_RCMM: /* RCMM: ? bits device address, ? bits command */
command = ircom & 0xff;
addr = (ircom >> 8) & 0x1f;
scancode = ircom;
toggle = ircom & 0x8000;
proto = RC_PROTO_UNKNOWN;
break;
case IR_RC5_EXT:
/*
* extended RC5: 5 bits device address, 7 bits command
*
* Extended RC5 uses only one start bit. The second
* start bit is re-assigned bit 6 of the command bit.
*/
command = ircom & 0x3f;
addr = (ircom >> 6) & 0x1f;
if (!(ircom & 0x1000))
command |= 0x40;
scancode = RC_SCANCODE_RC5(addr, command);
toggle = ircom & 0x0800;
proto = RC_PROTO_RC5;
break;
default:
dprintk(2, "unknown ir config %d\n",
av7110->ir.ir_config);
return;
}
rc_keydown(rcdev, proto, scancode, toggle != 0);
}
}
int av7110_set_ir_config(struct av7110 *av7110)
{
dprintk(4, "ir config = %08x\n", av7110->ir.ir_config);
return av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
av7110->ir.ir_config);
}
static int change_protocol(struct rc_dev *rcdev, u64 *rc_type)
{
struct av7110 *av7110 = rcdev->priv;
u32 ir_config;
if (*rc_type & RC_PROTO_BIT_UNKNOWN) {
ir_config = IR_RCMM;
*rc_type = RC_PROTO_UNKNOWN;
} else if (*rc_type & RC_PROTO_BIT_RC5) {
if (FW_VERSION(av7110->arm_app) >= 0x2620)
ir_config = IR_RC5_EXT;
else
ir_config = IR_RC5;
*rc_type = RC_PROTO_BIT_RC5;
} else {
return -EINVAL;
}
if (ir_config == av7110->ir.ir_config)
return 0;
av7110->ir.ir_config = ir_config;
return av7110_set_ir_config(av7110);
}
int av7110_ir_init(struct av7110 *av7110)
{
struct rc_dev *rcdev;
struct pci_dev *pci;
int ret;
rcdev = rc_allocate_device(RC_DRIVER_SCANCODE);
if (!rcdev)
return -ENOMEM;
pci = av7110->dev->pci;
snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
"pci-%s/ir0", pci_name(pci));
rcdev->device_name = av7110->card_name;
rcdev->driver_name = KBUILD_MODNAME;
rcdev->input_phys = av7110->ir.input_phys;
rcdev->input_id.bustype = BUS_PCI;
rcdev->input_id.version = 2;
if (pci->subsystem_vendor) {
rcdev->input_id.vendor = pci->subsystem_vendor;
rcdev->input_id.product = pci->subsystem_device;
} else {
rcdev->input_id.vendor = pci->vendor;
rcdev->input_id.product = pci->device;
}
rcdev->dev.parent = &pci->dev;
rcdev->allowed_protocols = RC_PROTO_BIT_RC5 | RC_PROTO_BIT_UNKNOWN;
rcdev->change_protocol = change_protocol;
rcdev->map_name = RC_MAP_HAUPPAUGE;
rcdev->priv = av7110;
av7110->ir.rcdev = rcdev;
av7110->ir.ir_config = IR_RC5;
av7110_set_ir_config(av7110);
ret = rc_register_device(rcdev);
if (ret) {
av7110->ir.rcdev = NULL;
rc_free_device(rcdev);
}
return ret;
}
void av7110_ir_exit(struct av7110 *av7110)
{
rc_unregister_device(av7110->ir.rcdev);
}
//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>");
//MODULE_LICENSE("GPL");
|
