source: rtems/c/src/lib/libbsp/powerpc/gen5200/mscan/mscan_int.h @ 379a4761

4.104.115
Last change on this file since 379a4761 was 9a49a96, checked in by Thomas Doerfler <Thomas.Doerfler@…>, on 09/05/08 at 13:24:26

Improved parameter checks for bit rate function.
  • Property mode set to 100644
File size: 6.5 KB
Line 
1/*===============================================================*\
2| Project: RTEMS generic MPC5200 BSP                              |
3+-----------------------------------------------------------------+
4| Partially based on the code references which are named below.   |
5| Adaptions, modifications, enhancements and any recent parts of  |
6| the code are:                                                   |
7|                    Copyright (c) 2005                           |
8|                    Embedded Brains GmbH                         |
9|                    Obere Lagerstr. 30                           |
10|                    D-82178 Puchheim                             |
11|                    Germany                                      |
12|                    rtems@embedded-brains.de                     |
13+-----------------------------------------------------------------+
14| The license and distribution terms for this file may be         |
15| found in the file LICENSE in this distribution or at            |
16|                                                                 |
17| http://www.rtems.com/license/LICENSE.                           |
18|                                                                 |
19+-----------------------------------------------------------------+
20| this file has to be included by the m driver                |
21\*===============================================================*/
22#ifndef __MSCAN_INT_H__
23#define __MSCAN_INT_H__
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
29#include <bsp/mscan-base.h>
30
31#include "../mscan/mscan.h"
32
33#define MSCAN_RX_BUFF_NUM        4
34#define MSCAN_TX_BUFF_NUM        3
35
36#define MSCAN_NON_INITIALIZED_MODE   0
37#define MSCAN_INITIALIZED_MODE       1
38#define MSCAN_INIT_NORMAL_MODE       2
39#define MSCAN_NORMAL_MODE            4
40#define MSCAN_SLEEP_MODE             8
41
42#define MSCAN_RX_BUFF_NOACTIVE   (0 << 4)
43#define MSCAN_RX_BUFF_EMPTY      (1 << 6)
44#define MSCAN_RX_BUFF_FULL       (1 << 5)
45#define MSCAN_RX_BUFF_OVERRUN    ((MSCAN_RX_BUFF_EMPTY) | (MSCAN_RX_BUFF_FULL))
46#define MSCAN_RX_BUFF_BUSY       (1 << 4)
47
48#define MSCAN_MBUFF_MASK         0x07
49
50#define MSCAN_TX_BUFF0           (1 << 0)
51#define MSCAN_TX_BUFF1           (1 << 1)
52#define MSCAN_TX_BUFF2           (1 << 2)
53
54#define MSCAN_IDE                (1 << 0)
55#define MSCAN_RTR                (1 << 1)
56#define MSCAN_READ_RXBUFF_0      (1 << 2)
57#define MSCAN_READ_RXBUFF_1      (1 << 2)
58#define MSCAN_READ_RXBUFF_2      (1 << 2)
59#define MSCAN_READ_RXBUFF_3      (1 << 2)
60
61#define MSCAN_STATE_OK           0
62#define MSCAN_STATE_ERR          1
63#define MSCAN_STATE_WRN              2
64#define MSCAN_STATE_BUSOFF       3
65
66#define TX_MBUF_SEL(buf_no)      (1 << (buf_no))
67#define TX_DATA_LEN(len)         ((len) & 0x0F)
68
69#define TX_MBUF_EMPTY(val)       (1 << (val))
70
71#define ID_RTR                   (1 << 4)
72
73#define SET_IDR0(u16)            ((uint8_t)((u16) >> 3))
74#define SET_IDR1(u16)            (MSCAN_MESS_ID_HAS_RTR(u16) ? ((uint8_t)(((u16) & 0x0007) << 5))|((uint8_t)(ID_RTR)) : ((uint8_t)(((u16) & 0x0007) << 5)))
75
76#define SET_IDR2(u16)            SET_IDR0(u16)
77#define SET_IDR3(u16)            SET_IDR1(u16)
78
79#define SET_IDR4(u16)            SET_IDR0(u16)
80#define SET_IDR5(u16)            SET_IDR1(u16)
81
82#define SET_IDR6(u16)            SET_IDR0(u16)
83#define SET_IDR7(u16)            SET_IDR1(u16)
84
85#define GET_IDR0(u16)            ((uint16_t) ((u16) << 3))
86#define GET_IDR1(u16)            ((((u16)&(ID_RTR))==(ID_RTR)) ? (uint16_t) ((((u16) >> 5)&0x0007)|MSCAN_MESS_ID_RTR) : (uint16_t)(((u16) >> 5)&0x0007))
87
88#define GET_IDR2(u16)            GET_IDR0(u16)
89#define GET_IDR3(u16)            GET_IDR1(u16)
90
91#define GET_IDR4(u16)            GET_IDR0(u16)
92#define GET_IDR5(u16)            GET_IDR1(u16)
93
94#define GET_IDR6(u16)            GET_IDR0(u16)
95#define GET_IDR7(u16)            GET_IDR1(u16)
96
97#define SET_IDMR0(u16)           ((uint8_t)((u16) >> 3))
98#define SET_IDMR1(u16)           (MSCAN_MESS_ID_HAS_RTR(u16) ? ((uint8_t) (((((u16) & 0x0007) << 5)|((uint8_t)(ID_RTR)))|0x0007)) : ((uint8_t)((((u16) & 0x0007) << 5))|0x0007))
99
100#define SET_IDMR2(u16)           SET_IDMR0(u16)
101#define SET_IDMR3(u16)           SET_IDMR1(u16)
102
103#define SET_IDMR4(u16)           SET_IDMR0(u16)
104#define SET_IDMR5(u16)           SET_IDMR1(u16)
105
106#define SET_IDMR6(u16)           SET_IDMR0(u16)
107#define SET_IDMR7(u16)           SET_IDMR1(u16)
108
109#define GET_IDMR0(u16)           ((uint16_t)((u16) << 3))
110#define GET_IDMR1(u16)           ((((u16)&(ID_RTR))==(ID_RTR)) ? (uint16_t) ((((u16) >> 5)&0x0007)|MSCAN_MESS_ID_RTR) : (uint16_t)(((u16) >> 5)&0x0007))
111
112#define GET_IDMR2(u16)           GET_IDMR0(u16)
113#define GET_IDMR3(u16)           GET_IDMR1(u16)
114
115#define GET_IDMR4(u16)           GET_IDMR0(u16)
116#define GET_IDMR5(u16)           GET_IDMR1(u16)
117
118#define GET_IDMR6(u16)           GET_IDMR0(u16)
119#define GET_IDMR7(u16)           GET_IDMR1(u16)
120
121#define NO_OF_MSCAN_RX_BUFF      20
122#define MSCAN_MESSAGE_SIZE(size) (((size)%CPU_ALIGNMENT) ? (((size) + CPU_ALIGNMENT)-((size) + CPU_ALIGNMENT)%CPU_ALIGNMENT) : (size))
123
124#define TX_BUFFER_0              0
125#define TX_BUFFER_1              1
126#define TX_BUFFER_2              2
127
128#define RX_BUFFER_0              0
129#define RX_BUFFER_1              1
130#define RX_BUFFER_2              2
131#define RX_BUFFER_3              3
132
133#define NO_OF_MSCAN_TX_BUFF      20
134#define RING_BUFFER_EMPTY(rbuff) ((((rbuff)->head) == ((rbuff)->tail)) ? TRUE : FALSE)
135#define RING_BUFFER_FULL(rbuff)  ((((rbuff)->head) == ((rbuff)->tail)) ? TRUE : FALSE)
136
137
138typedef struct _mscan_handle
139  {
140  uint8_t mscan_channel;
141  void (*toucan_callback)(int16_t);
142  } mscan_handle;
143
144struct ring_buf
145    {
146    struct can_message * volatile buf_ptr;
147    struct can_message * volatile head_ptr;
148    struct can_message * volatile tail_ptr;
149    };
150
151struct mpc5200_rx_cntrl
152  {
153  struct can_message can_rx_message[MSCAN_RX_BUFF_NUM];
154  };
155
156struct mscan_channel_info
157  {
158  mscan *regs;
159  uint32_t   int_rx_err;
160  rtems_id   rx_qid;
161  uint32_t   rx_qname;
162  rtems_id   tx_rb_sid;
163  uint32_t   tx_rb_sname;
164  uint8_t    id_extended;
165  uint8_t    mode;
166  uint8_t    tx_buf_no;
167  struct ring_buf tx_ring_buf;
168  };
169
170extern void CanInterrupt_A(int16_t);
171extern void CanInterrupt_B(int16_t);
172
173/*MSCAN driver internal functions */
174void mscan_hardware_initialize(rtems_device_major_number, uint32_t, void *);
175void mpc5200_mscan_wait_sync(mscan *);
176void mpc5200_mscan_perform_init_mode_settings(mscan *);
177void mpc5200_mscan_perform_normal_mode_settings(mscan *);
178rtems_status_code mpc5200_mscan_set_mode(rtems_device_minor_number, uint8_t);
179rtems_status_code mscan_channel_initialize(rtems_device_major_number, rtems_device_minor_number);
180
181#ifdef __cplusplus
182}
183#endif
184
185#endif /* __MSCAN_H__ */
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