source: rtems/c/src/lib/libbsp/sparc/shared/include/grcan.h @ e16e0ca

4.104.114.84.95
Last change on this file since e16e0ca was e16e0ca, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 6, 2007 at 1:25:42 PM

2007-09-06 Daniel Hellstrom <daniel@…>

  • Makefile.am: Add the following new drivers: PCI, b1553BRM, SpaceWire?(GRSPW), CAN (GRCAN,OC_CAN), Raw UART.
  • shared/include/apbuart.h, shared/include/apbuart_pci.h, shared/include/apbuart_rasta.h, shared/include/b1553brm.h, shared/include/b1553brm_pci.h, shared/include/b1553brm_rasta.h, shared/include/debug_defs.h, shared/include/grcan.h, shared/include/grcan_rasta.h, shared/include/grcan_spwrtc.h, shared/include/grspw.h, shared/include/grspw_pci.h, shared/include/grspw_rasta.h, shared/include/occan.h, shared/include/occan_pci.h, shared/include/pci.h: New files.
  • Property mode set to 100644
File size: 6.6 KB
Line 
1/*
2 *  Macros used for grcan controller
3 *
4 *  COPYRIGHT (c) 2007.
5 *  Gaisler Research
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 */
12
13#ifndef __GRCAN_H__
14#define __GRCAN_H__
15
16#include <ambapp.h>
17
18#ifdef __cplusplus
19extern "C" {
20#endif
21
22struct grcan_regs {
23    volatile unsigned int conf;          /* 0x00 */
24    volatile unsigned int stat;          /* 0x04 */
25    volatile unsigned int ctrl;          /* 0x08 */
26    volatile unsigned int dummy0[3];     /* 0x0C-0x014 */
27    volatile unsigned int smask;         /* 0x18 */
28    volatile unsigned int scode;         /* 0x1C */
29
30    volatile unsigned int dummy1[56];    /* 0x20-0xFC */
31
32    volatile unsigned int pimsr;         /* 0x100 */
33    volatile unsigned int pimr;          /* 0x104 */
34    volatile unsigned int pisr;          /* 0x108 */
35    volatile unsigned int pir;           /* 0x10C */
36    volatile unsigned int imr;           /* 0x110 */
37    volatile unsigned int picr;          /* 0x114 */
38
39    volatile unsigned int dummy2[58];    /* 0x118-0x1FC */
40
41    volatile unsigned int tx0ctrl;       /* 0x200 */
42    volatile unsigned int tx0addr;       /* 0x204 */
43    volatile unsigned int tx0size;       /* 0x208 */
44    volatile unsigned int tx0wr;         /* 0x20C */ 
45    volatile unsigned int tx0rd;         /* 0x210 */
46    volatile unsigned int tx0irq;        /* 0x214 */
47
48    volatile unsigned int dummy3[58];    /* 0x218-0x2FC */
49
50    volatile unsigned int rx0ctrl;       /* 0x300 */
51    volatile unsigned int rx0addr;       /* 0x304 */
52    volatile unsigned int rx0size;       /* 0x308 */
53    volatile unsigned int rx0wr;         /* 0x30C */ 
54    volatile unsigned int rx0rd;         /* 0x310 */
55    volatile unsigned int rx0irq;        /* 0x314 */ 
56    volatile unsigned int rx0mask;       /* 0x318 */
57    volatile unsigned int rx0code;       /* 0x31C */
58};
59
60struct grcan_stats {
61        unsigned int passive_cnt;
62        unsigned int overrun_cnt;
63        unsigned int rxsync_cnt;
64        unsigned int txsync_cnt;
65  unsigned int txloss_cnt;
66  unsigned int ahberr_cnt;
67  unsigned int ints;
68};
69
70struct grcan_timing {
71        unsigned char scaler;
72        unsigned char ps1;
73        unsigned char ps2;
74        unsigned int  rsj;
75        unsigned char bpr;
76};
77
78struct grcan_selection {
79        int selection; 
80        int enable0;
81        int enable1;
82};
83
84struct grcan_filter {
85        unsigned long long mask;
86        unsigned long long code;
87};
88
89/* CAN MESSAGE */
90typedef struct {
91        char extended; /* 1= Extended Frame (29-bit id), 0= STD Frame (11-bit id) */
92        char rtr; /* RTR - Remote Transmission Request */
93        char unused; /* unused */
94        unsigned char len;
95        unsigned char data[8];
96        unsigned int id;
97} CANMsg;
98
99#define GRCAN_CFG_ABORT      0x00000001
100#define GRCAN_CFG_ENABLE0    0x00000002
101#define GRCAN_CFG_ENABLE1    0x00000004
102#define GRCAN_CFG_SELECTION  0x00000008
103#define GRCAN_CFG_SILENT     0x00000010
104#define GRCAN_CFG_BPR        0x00000300
105#define GRCAN_CFG_RSJ        0x00007000
106#define GRCAN_CFG_PS1        0x00f00000
107#define GRCAN_CFG_PS2        0x000f0000
108#define GRCAN_CFG_SCALER     0xff000000
109
110#define GRCAN_CFG_BPR_BIT    8
111#define GRCAN_CFG_RSJ_BIT    12
112#define GRCAN_CFG_PS1_BIT    20
113#define GRCAN_CFG_PS2_BIT    16
114#define GRCAN_CFG_SCALER_BIT 24
115
116#define GRCAN_CTRL_RESET  0x2
117#define GRCAN_CTRL_ENABLE 0x1
118
119#define GRCAN_TXCTRL_ENABLE 1
120#define GRCAN_TXCTRL_ONGOING 1
121
122#define GRCAN_RXCTRL_ENABLE 1
123#define GRCAN_RXCTRL_ONGOING 1
124
125/* Relative offset of IRQ sources to AMBA Plug&Play */
126#define GRCAN_IRQ_IRQ 0
127#define GRCAN_IRQ_TXSYNC 1
128#define GRCAN_IRQ_RXSYNC 2
129
130#define GRCAN_ERR_IRQ        0x1
131#define GRCAN_OFF_IRQ        0x2
132#define GRCAN_OR_IRQ         0x4
133#define GRCAN_RXAHBERR_IRQ   0x8
134#define GRCAN_TXAHBERR_IRQ   0x10
135#define GRCAN_RXIRQ_IRQ      0x20
136#define GRCAN_TXIRQ_IRQ      0x40
137#define GRCAN_RXFULL_IRQ     0x80
138#define GRCAN_TXEMPTY_IRQ    0x100
139#define GRCAN_RX_IRQ         0x200
140#define GRCAN_TX_IRQ         0x400
141#define GRCAN_RXSYNC_IRQ     0x800
142#define GRCAN_TXSYNC_IRQ     0x1000
143#define GRCAN_RXERR_IRQ      0x2000
144#define GRCAN_TXERR_IRQ      0x4000
145#define GRCAN_RXMISS_IRQ     0x8000
146#define GRCAN_TXLOSS_IRQ     0x10000
147
148#define GRCAN_STAT_PASS      0x1
149#define GRCAN_STAT_OFF       0x2
150#define GRCAN_STAT_OR        0x4
151#define GRCAN_STAT_AHBERR    0x8
152#define GRCAN_STAT_ACTIVE    0x10
153#define GRCAN_STAT_RXERRCNT  0xff00
154#define GRCAN_STAT_TXERRCNT  0xff0000
155
156/* IOCTL Commands controlling operational
157 * mode
158 */
159#define GRCAN_IOC_START          1   /* Bring the link up after open or bus-off */
160#define GRCAN_IOC_STOP           2   /* stop to change baud rate/config or closing down */
161#define GRCAN_IOC_ISSTARTED      3   /* return RTEMS_SUCCESSFUL when started, othervise EBUSY */
162#define GRCAN_IOC_FLUSH          4   /* Waits until all TX messages has been sent */
163
164/* IOCTL Commands that require connection
165 * to be stopped
166 */
167#define GRCAN_IOC_SET_SILENT     16  /* enable silent mode read only state */
168#define GRCAN_IOC_SET_ABORT      17  /* enable/disable stopping link on AHB Error */
169#define GRCAN_IOC_SET_SELECTION  18  /* Set Enable0,Enable1,Selection */
170#define GRCAN_IOC_SET_SPEED      19  /* Set baudrate by using driver's baud rate timing calculation routines */
171#define GRCAN_IOC_SET_BTRS       20  /* Set baudrate by specifying the timing registers manually */
172
173/* IOCTL Commands can be called whenever */
174#define GRCAN_IOC_SET_RXBLOCK    32  /* Enable/disable Blocking on reception (until at least one message has been received) */
175#define GRCAN_IOC_SET_TXBLOCK    33  /* Enable/disable Blocking on transmission (until at least one message has been transmitted) */
176#define GRCAN_IOC_SET_TXCOMPLETE 34  /* Enable/disable Blocking until all requested messages has been sent */
177#define GRCAN_IOC_SET_RXCOMPLETE 35  /* Enable/disable Blocking until all requested has been received */
178#define GRCAN_IOC_GET_STATS      36  /* Get Statistics */
179#define GRCAN_IOC_CLR_STATS      37  /* Clear Statistics */
180#define GRCAN_IOC_SET_AFILTER    38  /* Set Acceptance filters, provide pointer to "struct grcan_filter" or NULL to disable filtering (let all messages pass) */
181#define GRCAN_IOC_SET_SFILTER    40  /* Set Sync Messages RX/TX filters, NULL disables the IRQ completely */
182#define GRCAN_IOC_GET_STATUS     41  /* Get status register of GRCAN core */
183
184struct grcan_device_info {
185  unsigned int base_address;
186  int irq;
187};
188
189/* Use hard coded addresses and IRQs to find hardware */
190int grcan_register_abs(struct grcan_device_info *devices, int dev_cnt);
191
192/* Use prescanned AMBA Plug&Play information to find all GRFIFO cores */
193int grcan_register(amba_confarea_type *abus);
194#if 0
195void grcan_register(unsigned int baseaddr, unsigned int ram_base);
196void grcan_interrupt_handler(rtems_vector_number v);
197#endif
198
199#ifdef __cplusplus
200}
201#endif
202
203#endif
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