RTEMS: bsps/include/grlib/b1553brm.h Source File

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b1553brm.h
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1
6/*
7 * COPYRIGHT (c) 2006.
8 * Cobham Gaisler AB.
9 *
10 * The license and distribution terms for this file may be
11 * found in the file LICENSE in this distribution or at
12 * http://www.rtems.org/license/LICENSE.
13 */
14
15#ifndef __B1553BRM_H__
16#define __B1553BRM_H__
17
28#include <drvmgr/drvmgr.h>
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34 struct brm_reg {
35 volatile unsigned int ctrl; /* 0x00 */
36 volatile unsigned int oper; /* 0x04 */
37 volatile unsigned int cur_cmd; /* 0x08 */
38 volatile unsigned int imask; /* 0x0C */
39 volatile unsigned int ipend; /* 0x10 */
40 volatile unsigned int ipoint; /* 0x14 */
41 volatile unsigned int bit_reg; /* 0x18 */
42 volatile unsigned int ttag; /* 0x1C */
43 volatile unsigned int dpoint; /* 0x20 */
44 volatile unsigned int sw; /* 0x24 */
45 volatile unsigned int initcount; /* 0x28 */
46 volatile unsigned int mcpoint; /* 0x2C */
47 volatile unsigned int mdpoint; /* 0x30 */
48 volatile unsigned int mbc; /* 0x34 */
49 volatile unsigned int mfilta; /* 0x38 */
50 volatile unsigned int mfiltb; /* 0x3C */
51 volatile unsigned int rt_cmd_leg[16]; /* 0x40-0x80 */
52 volatile unsigned int enhanced; /* 0x84 */
53
54 volatile unsigned int dummy[31];
55
56 volatile unsigned int w_ctrl; /* 0x100 */
57 volatile unsigned int w_irqctrl; /* 0x104 */
58 volatile unsigned int w_ahbaddr; /* 0x108 */
59};
60
61 struct bm_msg {
62 unsigned short miw;
63 unsigned short cw1;
64 unsigned short cw2;
65 unsigned short sw1;
66 unsigned short sw2;
67 unsigned short time;
68 unsigned short data[32];
69};
70
71 struct rt_msg {
72 unsigned short miw;
73 unsigned short time;
74 unsigned short data[32];
75 unsigned short desc;
76};
77
78/*
79 * rtaddr[0] and subaddr[0] : RT address and subaddress (for rt-rt receive addresses)
80 * rtaddr[1] and subaddr[1] : Only for RT-RT. Transmit addresses.
81 *
82 * wc : word count, or mode code if subaddress 0 or 31.
83 *
84 * ctrl, bit 0 (TR) : 1 - transmit, 0 - receive. Ignored for rt-rt
85 * bit 1 (RTRT) : 1 - rt to rt, 0 - normal
86 * bit 2 (AB) : 1 - Bus B, 0 - Bus A
87 * bit 4:3 (Retry) : 1 - 1, 2 - 2, 3 - 3, 0 - 4
88 * bit 5 (END) : End of list
89 * bit 15 (BAME) : Message error. Set by BRM if protocol error is detected
90 *
91 * tsw[0] : status word
92 * tsw[1] : Only for rt-rt, status word 2
93 *
94 * data : data to be transmitted, or received data
95 *
96 */
97 struct bc_msg {
98 unsigned char rtaddr[2];
99 unsigned char subaddr[2];
100 unsigned short wc;
101 unsigned short ctrl;
102 unsigned short tsw[2];
103 unsigned short data[32];
104};
105
106/* BC control bits */
107#define BC_TR 0x0001
108#define BC_RTRT 0x0002
109#define BC_BUSA 0x0004
110#define BC_EOL 0x0020
111#define BC_SKIP 0x0040
112#define BC_BAME 0x8000
113
114#define BRM_MBC_IRQ 1 /* Monitor Block Counter irq */
115#define BRM_CBA_IRQ 2 /* Command Block Accessed irq */
116#define BRM_RTF_IRQ 4 /* Retry Fail irq */
117#define BRM_ILLOP_IRQ 8 /* Illogical Opcode irq */
118#define BRM_BC_ILLCMD_IRQ 16 /* BC Illocigal Command irq */
119#define BRM_EOL_IRQ 32 /* End Of List irq */
120#define BRM_RT_ILLCMD_IRQ 128 /* RT Illegal Command irq */
121#define BRM_IXEQ0_IRQ 256 /* Index Equal Zero irq */
122#define BRM_BDRCV_IRQ 512 /* Broadcast Command Received irq */
123#define BRM_SUBAD_IRQ 1024 /* Subaddress Accessed irq */
124#define BRM_MERR_IRQ 2048 /* Message Error irq */
125#define BRM_TAPF_IRQ 8192 /* Terminal Address Parity Fail irq */
126#define BRM_WRAPF_IRQ 16384 /* Wrap Fail irq */
127#define BRM_DMAF_IRQ 32768 /* DMA Fail irq */
128
129
130#define BRM_SET_MODE 0
131#define BRM_SET_BUS 1
132#define BRM_SET_MSGTO 2
133#define BRM_SET_RT_ADDR 3
134#define BRM_SET_STD 4
135#define BRM_SET_BCE 5
136#define BRM_TX_BLOCK 7
137#define BRM_RX_BLOCK 8
138
139#define BRM_DO_LIST 10
140#define BRM_LIST_DONE 11
141
142#define BRM_CLR_STATUS 12
143#define BRM_GET_STATUS 13
144#define BRM_SET_EVENTID 14
145
146#define GET_ERROR_DESCRIPTOR(event_in) (event_in>>16)
147
148
149#define BRM_MODE_BC 0x0
150#define BRM_MODE_RT 0x1
151#define BRM_MODE_BM 0x2
152#define BRM_MODE_BM_RT 0x3 /* both RT and BM */
153
154#define BRM_FREQ_12MHZ 0
155#define BRM_FREQ_16MHZ 1
156#define BRM_FREQ_20MHZ 2
157#define BRM_FREQ_24MHZ 3
158#define BRM_FREQ_MASK 0x3
159
160#define CLKDIV_MASK 0xf
161
162#define CLKSEL_MASK 0x7
163
164void b1553brm_register_drv(void);
165
166/* Default initialization of the RT legalization registers. The values in this
167 * array are written to the registers on boot driver initialization and when
168 * the user set the mode to RT-mode by calling ioctl(BRM_SET_MODE). Thus,
169 * update the array first then call ioctl(BRM_SET_MODE) for the changes to have
170 * an affect. Note that this affects all B1553BRM RTs in the system.
171 */
172extern unsigned short b1553brm_rt_cmd_legalize[16];
173
174/* Print information about all BRM devices handled by this driver */
175void b1553brm_print(int options);
176
177/* Print information about one BRM device */
178void b1553brm_print_dev(struct drvmgr_dev *dev, int options);
179
180#ifdef __cplusplus
181}
182#endif
183
186#endif /* __BRM_H__ */
187
bc_msg
Definition: b1553brm.h:97
bm_msg
Definition: b1553brm.h:61
brm_reg
Definition: b1553brm.h:34
drvmgr_dev
Definition: drvmgr.h:273
rt_msg
Definition: b1553brm.h:71