4 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
5 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 /* FlexCan Message Buffer */
30 typedef struct can_msgbuf_ctrl {
32 u8 tmstamp; /* 0x00 Timestamp */
33 u8 ctrl; /* 0x01 Control */
34 u16 idh; /* 0x02 ID High */
35 u16 idl; /* 0x04 ID High */
36 u8 data[8]; /* 0x06 8 Byte Data Field */
39 u16 ctrl; /* 0x00 Control/Status */
40 u16 tmstamp; /* 0x02 Timestamp */
41 u32 id; /* 0x04 Identifier */
42 u8 data[8]; /* 0x08 8 Byte Data Field */
48 #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x0F) << 4)
49 #define CAN_MSGBUF_CTRL_CODE_MASK (0x0F)
50 #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x0F)
51 #define CAN_MSGBUF_CTRL_LEN_MASK (0xF0)
54 #define CAN_MSGBUF_IDH_STD(x) (((x) & 0x07FF) << 5)
55 #define CAN_MSGBUF_IDH_STD_MASK (0xE003FFFF)
56 #define CAN_MSGBUF_IDH_SRR (0x0010)
57 #define CAN_MSGBUF_IDH_IDE (0x0080)
58 #define CAN_MSGBUF_IDH_EXTH(x) ((x) & 0x07)
59 #define CAN_MSGBUF_IDH_EXTH_MASK (0xFFF8)
60 #define CAN_MSGBUF_IDL_EXTL(x) (((x) & 0x7FFF) << 1)
61 #define CAN_MSGBUF_IDL_EXTL_MASK (0xFFFE)
62 #define CAN_MSGBUF_IDL_RTR (0x0001)
65 #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x000F) << 8)
66 #define CAN_MSGBUF_CTRL_CODE_MASK (0xF0FF)
67 #define CAN_MSGBUF_CTRL_SRR (0x0040)
68 #define CAN_MSGBUF_CTRL_IDE (0x0020)
69 #define CAN_MSGBUF_CTRL_RTR (0x0010)
70 #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x000F)
71 #define CAN_MSGBUF_CTRL_LEN_MASK (0xFFF0)
74 #define CAN_MSGBUF_ID_STD(x) (((x) & 0x000007FF) << 18)
75 #define CAN_MSGBUF_ID_STD_MASK (0xE003FFFF)
76 #define CAN_MSGBUF_ID_EXT(x) ((x) & 0x0003FFFF)
77 #define CAN_MSGBUF_ID_EXT_MASK (0xFFFC0000)
81 typedef struct can_ctrl {
82 u32 mcr; /* 0x00 Module Configuration */
83 u32 ctrl; /* 0x04 Control */
84 u32 timer; /* 0x08 Free Running Timer */
86 u32 rxgmsk; /* 0x10 Rx Global Mask */
87 u32 rx14msk; /* 0x14 RxBuffer 14 Mask */
88 u32 rx15msk; /* 0x18 RxBuffer 15 Mask */
91 u16 errstat; /* 0x20 Error and status */
92 u16 imsk; /* 0x22 Interrupt Mask */
93 u16 iflag; /* 0x24 Interrupt Flag */
94 u16 errcnt; /* 0x26 Error Counter */
95 u32 res3[3]; /* 0x28 - 0x33 */
98 u16 errcnt; /* 0x1E Error Counter */
100 u16 errstat; /* 0x22 Error and status */
102 u32 imsk; /* 0x28 Interrupt Mask */
104 u16 iflag; /* 0x30 Interrupt Flag */
106 u32 res6[19]; /* 0x34 - 0x7F */
107 void *msgbuf; /* 0x80 Message Buffer 0-15 */
111 #define CAN_MCR_MDIS (0x80000000)
112 #define CAN_MCR_FRZ (0x40000000)
113 #define CAN_MCR_HALT (0x10000000)
114 #define CAN_MCR_NORDY (0x08000000)
115 #define CAN_MCF_WAKEMSK (0x04000000) /* 5282 */
116 #define CAN_MCR_SOFTRST (0x02000000)
117 #define CAN_MCR_FRZACK (0x01000000)
118 #define CAN_MCR_SUPV (0x00800000)
119 #define CAN_MCR_SELFWAKE (0x00400000) /* 5282 */
120 #define CAN_MCR_APS (0x00200000) /* 5282 */
121 #define CAN_MCR_LPMACK (0x00100000)
122 #define CAN_MCF_BCC (0x00010000)
123 #define CAN_MCR_MAXMB(x) ((x) & 0x0F)
124 #define CAN_MCR_MAXMB_MASK (0xFFFFFFF0)
127 #define CAN_CTRL_PRESDIV(x) (((x) & 0xFF) << 24)
128 #define CAN_CTRL_PRESDIV_MASK (0x00FFFFFF)
129 #define CAN_CTRL_RJW(x) (((x) & 0x03) << 22)
130 #define CAN_CTRL_RJW_MASK (0xFF3FFFFF)
131 #define CAN_CTRL_PSEG1(x) (((x) & 0x07) << 19)
132 #define CAN_CTRL_PSEG1_MASK (0xFFC7FFFF)
133 #define CAN_CTRL_PSEG2(x) (((x) & 0x07) << 16)
134 #define CAN_CTRL_PSEG2_MASK (0xFFF8FFFF)
135 #define CAN_CTRL_BOFFMSK (0x00008000)
136 #define CAN_CTRL_ERRMSK (0x00004000)
137 #define CAN_CTRL_CLKSRC (0x00002000)
138 #define CAN_CTRL_LPB (0x00001000)
139 #define CAN_CTRL_RXMODE (0x00000400) /* 5282 */
140 #define CAN_CTRL_TXMODE(x) (((x) & 0x03) << 8) /* 5282 */
141 #define CAN_CTRL_TXMODE_MASK (0xFFFFFCFF) /* 5282 */
142 #define CAN_CTRL_TXMODE_CAN0 (0x00000000) /* 5282 */
143 #define CAN_CTRL_TXMODE_CAN1 (0x00000100) /* 5282 */
144 #define CAN_CTRL_TXMODE_OPEN (0x00000200) /* 5282 */
145 #define CAN_CTRL_SMP (0x00000080)
146 #define CAN_CTRL_BOFFREC (0x00000040)
147 #define CAN_CTRL_TSYNC (0x00000020)
148 #define CAN_CTRL_LBUF (0x00000010)
149 #define CAN_CTRL_LOM (0x00000008)
150 #define CAN_CTRL_PROPSEG(x) ((x) & 0x07)
151 #define CAN_CTRL_PROPSEG_MASK (0xFFFFFFF8)
154 /* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */
155 #define CAN_TIMER(x) ((x) & 0xFFFF)
156 #define CAN_TIMER_MASK (0xFFFF0000)
160 #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 21)
161 #define CAN_RXGMSK_MI_STD_MASK (0x001FFFFF)
162 #define CAN_RXGMSK_MI_EXT(x) (((x) & 0x0003FFFF) << 1)
163 #define CAN_RXGMSK_MI_EXT_MASK (0xFFF80001)
165 #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 18)
166 #define CAN_RXGMSK_MI_STD_MASK (0xE003FFFF)
167 #define CAN_RXGMSK_MI_EXT(x) ((x) & 0x0003FFFF)
168 #define CAN_RXGMSK_MI_EXT_MASK (0xFFFC0000)
172 #define CAN_ERRCNT_RXECTR(x) (((x) & 0xFF) << 8)
173 #define CAN_ERRCNT_RXECTR_MASK (0x00FF)
174 #define CAN_ERRCNT_TXECTR(x) ((x) & 0xFF)
175 #define CAN_ERRCNT_TXECTR_MASK (0xFF00)
178 #define CAN_ERRSTAT_BITERR1 (0x8000)
179 #define CAN_ERRSTAT_BITERR0 (0x4000)
180 #define CAN_ERRSTAT_ACKERR (0x2000)
181 #define CAN_ERRSTAT_CRCERR (0x1000)
182 #define CAN_ERRSTAT_FRMERR (0x0800)
183 #define CAN_ERRSTAT_STFERR (0x0400)
184 #define CAN_ERRSTAT_TXWRN (0x0200)
185 #define CAN_ERRSTAT_RXWRN (0x0100)
186 #define CAN_ERRSTAT_IDLE (0x0080)
187 #define CAN_ERRSTAT_TXRX (0x0040)
188 #define CAN_ERRSTAT_FLT_MASK (0xFFCF)
189 #define CAN_ERRSTAT_FLT_BUSOFF (0x0020)
190 #define CAN_ERRSTAT_FLT_PASSIVE (0x0010)
191 #define CAN_ERRSTAT_FLT_ACTIVE (0x0000)
193 #define CAN_ERRSTAT_BOFFINT (0x0004)
194 #define CAN_ERRSTAT_ERRINT (0x0002)
196 #define CAN_ERRSTAT_ERRINT (0x0004)
197 #define CAN_ERRSTAT_BOFFINT (0x0002)
198 #define CAN_ERRSTAT_WAKEINT (0x0001)
203 #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF))
204 #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
206 #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF))
207 #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
212 #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF))
213 #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
215 #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF))
216 #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
219 #endif /* __FLEXCAN_H__ */