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
|
/*
*
* BRIEF MODULE DESCRIPTION
* IT8172 Consumer IR port defines.
*
* Copyright 2001 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or support@mvista.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define NUM_CIR_PORTS 2
/* Master Control Register */
#define CIR_RESET 0x1
#define CIR_FIFO_CLEAR 0x2
#define CIR_SET_FIFO_TL(x) (((x)&0x3)<<2)
#define CIR_ILE 0x10
#define CIR_ILSEL 0x20
/* Interrupt Enable Register */
#define CIR_TLDLIE 0x1
#define CIR_RDAIE 0x2
#define CIR_RFOIE 0x4
#define CIR_IEC 0x80
/* Interrupt Identification Register */
#define CIR_TLDLI 0x1
#define CIR_RDAI 0x2
#define CIR_RFOI 0x4
#define CIR_NIP 0x80
/* Carrier Frequency Register */
#define CIR_SET_CF(x) ((x)&0x1f)
#define CFQ_38_480 0xB /* 38 KHz low, 480 KHz high */
#define CIR_HCFS 0x20
#define CIR_SET_HS(x) (((x)&0x1)<<5)
/* Receiver Control Register */
#define CIR_SET_RXDCR(x) ((x)&0x7)
#define CIR_RXACT 0x8
#define CIR_RXEND 0x10
#define CIR_RDWOS 0x20
#define CIR_SET_RDWOS(x) (((x)&0x1)<<5)
#define CIR_RXEN 0x80
/* Transmitter Control Register */
#define CIR_SET_TXMPW(x) ((x)&0x7)
#define CIR_SET_TXMPM(x) (((x)&0x3)<<3)
#define CIR_TXENDF 0x20
#define CIR_TXRLE 0x40
/* Receiver FIFO Status Register */
#define CIR_RXFBC_MASK 0x3f
#define CIR_RXFTO 0x80
/* Wakeup Code Length Register */
#define CIR_SET_WCL ((x)&0x3f)
#define CIR_WCL_MASK(x) ((x)&0x3f)
/* Wakeup Power Control/Status Register */
#define CIR_BTMON 0x2
#define CIR_CIRON 0x4
#define CIR_RCRST 0x10
#define CIR_WCRST 0x20
struct cir_port {
int port;
unsigned short baud_rate;
unsigned char fifo_tl;
unsigned char cfq;
unsigned char hcfs;
unsigned char rdwos;
unsigned char rxdcr;
};
struct it8172_cir_regs {
unsigned char dr; /* data */
char pad;
unsigned char mstcr; /* master control */
char pad1;
unsigned char ier; /* interrupt enable */
char pad2;
unsigned char iir; /* interrupt identification */
char pad3;
unsigned char cfr; /* carrier frequency */
char pad4;
unsigned char rcr; /* receiver control */
char pad5;
unsigned char tcr; /* transmitter control */
char pad6;
char pad7;
char pad8;
unsigned char bdlr; /* baud rate divisor low byte */
char pad9;
unsigned char bdhr; /* baud rate divisor high byte */
char pad10;
unsigned char tfsr; /* tx fifo byte count */
char pad11;
unsigned char rfsr; /* rx fifo status */
char pad12;
unsigned char wcl; /* wakeup code length */
char pad13;
unsigned char wcr; /* wakeup code read/write */
char pad14;
unsigned char wps; /* wakeup power control/status */
};
int cir_port_init(struct cir_port *cir);
extern void clear_fifo(struct cir_port *cir);
extern void enable_receiver(struct cir_port *cir);
extern void disable_receiver(struct cir_port *cir);
extern void enable_rx_demodulation(struct cir_port *cir);
extern void disable_rx_demodulation(struct cir_port *cir);
extern void set_rx_active(struct cir_port *cir);
extern void int_enable(struct cir_port *cir);
extern void rx_int_enable(struct cir_port *cir);
extern char get_int_status(struct cir_port *cir);
extern int cir_get_rx_count(struct cir_port *cir);
extern char cir_read_data(struct cir_port *cir);
|
