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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
* @ingroup 1553
*/
/*
* COPYRIGHT (c) 2006.
* Cobham Gaisler AB.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#ifndef __B1553BRM_H__
#define __B1553BRM_H__
/**
* @defgroup 1553 B1553BRM
*
* @ingroup RTEMSBSPsSharedGRLIB
*
* @brief B1553BRM device driver
*
* @{
*/
#include <drvmgr/drvmgr.h>
#ifdef __cplusplus
extern "C" {
#endif
struct brm_reg {
volatile unsigned int ctrl; /* 0x00 */
volatile unsigned int oper; /* 0x04 */
volatile unsigned int cur_cmd; /* 0x08 */
volatile unsigned int imask; /* 0x0C */
volatile unsigned int ipend; /* 0x10 */
volatile unsigned int ipoint; /* 0x14 */
volatile unsigned int bit_reg; /* 0x18 */
volatile unsigned int ttag; /* 0x1C */
volatile unsigned int dpoint; /* 0x20 */
volatile unsigned int sw; /* 0x24 */
volatile unsigned int initcount; /* 0x28 */
volatile unsigned int mcpoint; /* 0x2C */
volatile unsigned int mdpoint; /* 0x30 */
volatile unsigned int mbc; /* 0x34 */
volatile unsigned int mfilta; /* 0x38 */
volatile unsigned int mfiltb; /* 0x3C */
volatile unsigned int rt_cmd_leg[16]; /* 0x40-0x80 */
volatile unsigned int enhanced; /* 0x84 */
volatile unsigned int dummy[31];
volatile unsigned int w_ctrl; /* 0x100 */
volatile unsigned int w_irqctrl; /* 0x104 */
volatile unsigned int w_ahbaddr; /* 0x108 */
};
struct bm_msg {
unsigned short miw;
unsigned short cw1;
unsigned short cw2;
unsigned short sw1;
unsigned short sw2;
unsigned short time;
unsigned short data[32];
};
struct rt_msg {
unsigned short miw;
unsigned short time;
unsigned short data[32];
unsigned short desc;
};
/*
* rtaddr[0] and subaddr[0] : RT address and subaddress (for rt-rt receive addresses)
* rtaddr[1] and subaddr[1] : Only for RT-RT. Transmit addresses.
*
* wc : word count, or mode code if subaddress 0 or 31.
*
* ctrl, bit 0 (TR) : 1 - transmit, 0 - receive. Ignored for rt-rt
* bit 1 (RTRT) : 1 - rt to rt, 0 - normal
* bit 2 (AB) : 1 - Bus B, 0 - Bus A
* bit 4:3 (Retry) : 1 - 1, 2 - 2, 3 - 3, 0 - 4
* bit 5 (END) : End of list
* bit 15 (BAME) : Message error. Set by BRM if protocol error is detected
*
* tsw[0] : status word
* tsw[1] : Only for rt-rt, status word 2
*
* data : data to be transmitted, or received data
*
*/
struct bc_msg {
unsigned char rtaddr[2];
unsigned char subaddr[2];
unsigned short wc;
unsigned short ctrl;
unsigned short tsw[2];
unsigned short data[32];
};
/* BC control bits */
#define BC_TR 0x0001
#define BC_RTRT 0x0002
#define BC_BUSA 0x0004
#define BC_EOL 0x0020
#define BC_SKIP 0x0040
#define BC_BAME 0x8000
#define BRM_MBC_IRQ 1 /* Monitor Block Counter irq */
#define BRM_CBA_IRQ 2 /* Command Block Accessed irq */
#define BRM_RTF_IRQ 4 /* Retry Fail irq */
#define BRM_ILLOP_IRQ 8 /* Illogical Opcode irq */
#define BRM_BC_ILLCMD_IRQ 16 /* BC Illocigal Command irq */
#define BRM_EOL_IRQ 32 /* End Of List irq */
#define BRM_RT_ILLCMD_IRQ 128 /* RT Illegal Command irq */
#define BRM_IXEQ0_IRQ 256 /* Index Equal Zero irq */
#define BRM_BDRCV_IRQ 512 /* Broadcast Command Received irq */
#define BRM_SUBAD_IRQ 1024 /* Subaddress Accessed irq */
#define BRM_MERR_IRQ 2048 /* Message Error irq */
#define BRM_TAPF_IRQ 8192 /* Terminal Address Parity Fail irq */
#define BRM_WRAPF_IRQ 16384 /* Wrap Fail irq */
#define BRM_DMAF_IRQ 32768 /* DMA Fail irq */
#define BRM_SET_MODE 0
#define BRM_SET_BUS 1
#define BRM_SET_MSGTO 2
#define BRM_SET_RT_ADDR 3
#define BRM_SET_STD 4
#define BRM_SET_BCE 5
#define BRM_TX_BLOCK 7
#define BRM_RX_BLOCK 8
#define BRM_DO_LIST 10
#define BRM_LIST_DONE 11
#define BRM_CLR_STATUS 12
#define BRM_GET_STATUS 13
#define BRM_SET_EVENTID 14
#define GET_ERROR_DESCRIPTOR(event_in) (event_in>>16)
#define BRM_MODE_BC 0x0
#define BRM_MODE_RT 0x1
#define BRM_MODE_BM 0x2
#define BRM_MODE_BM_RT 0x3 /* both RT and BM */
#define BRM_FREQ_12MHZ 0
#define BRM_FREQ_16MHZ 1
#define BRM_FREQ_20MHZ 2
#define BRM_FREQ_24MHZ 3
#define BRM_FREQ_MASK 0x3
#define CLKDIV_MASK 0xf
#define CLKSEL_MASK 0x7
void b1553brm_register_drv(void);
/* Default initialization of the RT legalization registers. The values in this
* array are written to the registers on boot driver initialization and when
* the user set the mode to RT-mode by calling ioctl(BRM_SET_MODE). Thus,
* update the array first then call ioctl(BRM_SET_MODE) for the changes to have
* an affect. Note that this affects all B1553BRM RTs in the system.
*/
extern unsigned short b1553brm_rt_cmd_legalize[16];
/* Print information about all BRM devices handled by this driver */
void b1553brm_print(int options);
/* Print information about one BRM device */
void b1553brm_print_dev(struct drvmgr_dev *dev, int options);
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* __BRM_H__ */
|
