Gitiles
Code Review Sign In
review.evervolv.com / android_kernel_htc_msm8960 / cbbcf3401173f11f7e4c03c7ec8955ea29cd83b5 / . / include / asm-mips / it8172 / it8172_cir.h
blob: 6a1dbd29f6d194ee5e90e605f9b5e917dd43c9fa [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * IT8172 Consumer IR port defines.
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30
31#define NUM_CIR_PORTS 2
32
33/* Master Control Register */
34#define CIR_RESET 0x1
35#define CIR_FIFO_CLEAR 0x2
36#define CIR_SET_FIFO_TL(x) (((x)&0x3)<<2)
37#define CIR_ILE 0x10
38#define CIR_ILSEL 0x20
39
40/* Interrupt Enable Register */
41#define CIR_TLDLIE 0x1
42#define CIR_RDAIE 0x2
43#define CIR_RFOIE 0x4
44#define CIR_IEC 0x80
45
46/* Interrupt Identification Register */
47#define CIR_TLDLI 0x1
48#define CIR_RDAI 0x2
49#define CIR_RFOI 0x4
50#define CIR_NIP 0x80
51
52/* Carrier Frequency Register */
53#define CIR_SET_CF(x) ((x)&0x1f)
54 #define CFQ_38_480 0xB /* 38 KHz low, 480 KHz high */
55#define CIR_HCFS 0x20
56 #define CIR_SET_HS(x) (((x)&0x1)<<5)
57
58
59/* Receiver Control Register */
60#define CIR_SET_RXDCR(x) ((x)&0x7)
61#define CIR_RXACT 0x8
62#define CIR_RXEND 0x10
63#define CIR_RDWOS 0x20
64 #define CIR_SET_RDWOS(x) (((x)&0x1)<<5)
65#define CIR_RXEN 0x80
66
67/* Transmitter Control Register */
68#define CIR_SET_TXMPW(x) ((x)&0x7)
69#define CIR_SET_TXMPM(x) (((x)&0x3)<<3)
70#define CIR_TXENDF 0x20
71#define CIR_TXRLE 0x40
72
73/* Receiver FIFO Status Register */
74#define CIR_RXFBC_MASK 0x3f
75#define CIR_RXFTO 0x80
76
77/* Wakeup Code Length Register */
78#define CIR_SET_WCL ((x)&0x3f)
79#define CIR_WCL_MASK(x) ((x)&0x3f)
80
81/* Wakeup Power Control/Status Register */
82#define CIR_BTMON 0x2
83#define CIR_CIRON 0x4
84#define CIR_RCRST 0x10
85#define CIR_WCRST 0x20
86
87struct cir_port {
88 int port;
89 unsigned short baud_rate;
90 unsigned char fifo_tl;
91 unsigned char cfq;
92 unsigned char hcfs;
93 unsigned char rdwos;
94 unsigned char rxdcr;
95};
96
97struct it8172_cir_regs {
98 unsigned char dr; /* data */
99 char pad;
100 unsigned char mstcr; /* master control */
101 char pad1;
102 unsigned char ier; /* interrupt enable */
103 char pad2;
104 unsigned char iir; /* interrupt identification */
105 char pad3;
106 unsigned char cfr; /* carrier frequency */
107 char pad4;
108 unsigned char rcr; /* receiver control */
109 char pad5;
110 unsigned char tcr; /* transmitter control */
111 char pad6;
112 char pad7;
113 char pad8;
114 unsigned char bdlr; /* baud rate divisor low byte */
115 char pad9;
116 unsigned char bdhr; /* baud rate divisor high byte */
117 char pad10;
118 unsigned char tfsr; /* tx fifo byte count */
119 char pad11;
120 unsigned char rfsr; /* rx fifo status */
121 char pad12;
122 unsigned char wcl; /* wakeup code length */
123 char pad13;
124 unsigned char wcr; /* wakeup code read/write */
125 char pad14;
126 unsigned char wps; /* wakeup power control/status */
127};
128
129int cir_port_init(struct cir_port *cir);
130extern void clear_fifo(struct cir_port *cir);
131extern void enable_receiver(struct cir_port *cir);
132extern void disable_receiver(struct cir_port *cir);
133extern void enable_rx_demodulation(struct cir_port *cir);
134extern void disable_rx_demodulation(struct cir_port *cir);
135extern void set_rx_active(struct cir_port *cir);
136extern void int_enable(struct cir_port *cir);
137extern void rx_int_enable(struct cir_port *cir);
138extern char get_int_status(struct cir_port *cir);
139extern int cir_get_rx_count(struct cir_port *cir);
140extern char cir_read_data(struct cir_port *cir);