From 810c6fba2276069a810566d10a8e9b3e507e88e2 Mon Sep 17 00:00:00 2001 From: patacongo Date: Fri, 4 Jun 2010 01:33:19 +0000 Subject: [PATCH] More CAN bit definitions git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2723 42af7a65-404d-4744-a932-0658087f49c3 --- arch/arm/src/lpc17xx/lpc17_can.h | 107 +++++++++++++++++++++++++++---- 1 file changed, 95 insertions(+), 12 deletions(-) diff --git a/arch/arm/src/lpc17xx/lpc17_can.h b/arch/arm/src/lpc17xx/lpc17_can.h index 8efdd779d0..614cef1d9c 100755 --- a/arch/arm/src/lpc17xx/lpc17_can.h +++ b/arch/arm/src/lpc17xx/lpc17_can.h @@ -75,7 +75,7 @@ #define LPC17_CAN_MOD_OFFSET 0x0000 /* CAN operating mode */ #define LPC17_CAN_CMR_OFFSET 0x0004 /* Command bits */ #define LPC17_CAN_GSR_OFFSET 0x0008 /* Controller Status and Error Counters */ -#define LPC17_CAN_ICR_OFFSET 0x000c /* Interrupt status */ +#define LPC17_CAN_ICR_OFFSET 0x000c /* Interrupt and capure register */ #define LPC17_CAN_IER_OFFSET 0x0010 /* Interrupt Enable */ #define LPC17_CAN_BTR_OFFSET 0x0014 /* Bus Timing */ #define LPC17_CAN_EWL_OFFSET 0x0018 /* Error Warning Limit */ @@ -270,28 +270,111 @@ /* Bits 8-31: Reserved */ /* Command bits */ -#define CAN_CMR_ - +#define CAN_CMR_TR (1 << 0) /* Bit 0: Transmission Request */ +#define CAN_CMR_AT (1 << 1) /* Bit 1: Abort Transmission */ +#define CAN_CMR_RRB (1 << 2) /* Bit 2: Release Receive Buffer */ +#define CAN_CMR_CDO (1 << 3) /* Bit 3: Clear Data Overrun */ +#define CAN_CMR_SRR (1 << 4) /* Bit 4: Self Reception Request */ +#define CAN_CMR_STB1 (1 << 5) /* Bit 5: Select Tx Buffer 1 */ +#define CAN_CMR_STB2 (1 << 6) /* Bit 6: Select Tx Buffer 2 */ +#define CAN_CMR_STB3 (1 << 7) /* Bit 7: Select Tx Buffer 3 */ + /* Bits 8-31: Reserved */ /* Controller Status and Error Counters */ -#define CAN_GSR_ +#define CAN_GSR_RBS (1 << 0) /* Bit 0: Receive Buffer Status */ +#define CAN_GSR_DOS (1 << 1) /* Bit 1: Data Overrun Status */ +#define CAN_GSR_TBS (1 << 2) /* Bit 2: Transmit Buffer Status */ +#define CAN_GSR_TCS (1 << 3) /* Bit 3: Transmit Complete Status */ +#define CAN_GSR_RS (1 << 4) /* Bit 4: Receive Status */ +#define CAN_GSR_TS (1 << 5) /* Bit 5: Transmit Status */ +#define CAN_GSR_ES (1 << 6) /* Bit 6: Error Status */ +#define CAN_GSR_BS (1 << 7) /* Bit 7: Bus Status */ + /* Bits 8-15: Reserved */ +#define CAN_GSR_RXERR_SHIFT (16) /* Bits 16-23: Rx Error Counter */ +#define CAN_GSR_RXERR_MASK (0xff << CAN_GSR_RXERR_SHIFT) +#define CAN_GSR_TXERR_SHIFT (24) /* Bits 24-31: Tx Error Counter */ +#define CAN_GSR_TXERR_MASK (0xff << CAN_GSR_TXERR_SHIFT) -/* Interrupt status */ +/* Interrupt and capure register */ -#define CAN_ICR_ +#define CAN_ICR_RI (1 << 0) /* Bit 0: Receive Interrupt */ +#define CAN_ICR_TI1 (1 << 1) /* Bit 1: Transmit Interrupt 1 */ +#define CAN_ICR_EI (1 << 2) /* Bit 2: Error Warning Interrupt */ +#define CAN_ICR_DOI (1 << 3) /* Bit 3: Data Overrun Interrupt */ +#define CAN_ICR_WUI (1 << 4) /* Bit 4: Wake-Up Interrupt */ +#define CAN_ICR_EPI (1 << 5) /* Bit 5: Error Passive Interrupt */ +#define CAN_ICR_ALI (1 << 6) /* Bit 6: Arbitration Lost Interrupt */ +#define CAN_ICR_BEI (1 << 7) /* Bit 7: Bus Error Interrupt */ +#define CAN_ICR_IDI (1 << 8) /* Bit 8: ID Ready Interrupt */ +#define CAN_ICR_TI2 (1 << 9) /* Bit 9: Transmit Interrupt 2 */ +#define CAN_ICR_TI3 (1 << 10) /* Bit 10: Transmit Interrupt 3 */ + /* Bits 11-15: Reserved */ +#define CAN_ICR_ERRBIT_SHIFT (16) /* Bits 16-20: Error Code Capture */ +#define CAN_ICR_ERRBIT_MASK (0x1f << CAN_ICR_ERRBIT_SHIFT) +# define CAN_ICR_ERRBIT_SOF (3 << CAN_ICR_ERRBIT_SHIFT) /* Start of Frame */ +# define CAN_ICR_ERRBIT_ID28 (2 << CAN_ICR_ERRBIT_SHIFT) /* ID28 ... ID21 */ +# define CAN_ICR_ERRBIT_SRTR (4 << CAN_ICR_ERRBIT_SHIFT) /* SRTR Bit */ +# define CAN_ICR_ERRBIT_IDE (5 << CAN_ICR_ERRBIT_SHIFT) /* DE bit */ +# define CAN_ICR_ERRBIT_ID20 (6 << CAN_ICR_ERRBIT_SHIFT) /* ID20 ... ID18 */ +# define CAN_ICR_ERRBIT_ID17 (7 << CAN_ICR_ERRBIT_SHIFT) /* ID17 ... 13 */ +# define CAN_ICR_ERRBIT_CRC (8 << CAN_ICR_ERRBIT_SHIFT) /* CRC Sequence */ +# define CAN_ICR_ERRBIT_DATA (10 << CAN_ICR_ERRBIT_SHIFT) /* Data Field */ +# define CAN_ICR_ERRBIT_LEN (11 << CAN_ICR_ERRBIT_SHIFT) /* Data Length Code */ +# define CAN_ICR_ERRBIT_ RTR (12 << CAN_ICR_ERRBIT_SHIFT) /* RTR Bit */ +# define CAN_ICR_ERRBIT_ID4 (14 << CAN_ICR_ERRBIT_SHIFT) /* ID4 ... ID0 */ +# define CAN_ICR_ERRBIT_ID12 (15 << CAN_ICR_ERRBIT_SHIFT) /* ID12 ... ID5 */ +# define CAN_ICR_ERRBIT_AERR (17 << CAN_ICR_ERRBIT_SHIFT) /* Active Error Flag */ +# define CAN_ICR_ERRBIT_INTERMSN (18 << CAN_ICR_ERRBIT_SHIFT) /* Intermission */ +# define CAN_ICR_ERRBIT_DOM (19 << CAN_ICR_ERRBIT_SHIFT) /* Tolerate Dominant Bits */ +# define CAN_ICR_ERRBIT_PERR (22 << CAN_ICR_ERRBIT_SHIFT) /* Passive Error Flag */ +# define CAN_ICR_ERRBIT_ERRDLM (23 << CAN_ICR_ERRBIT_SHIFT) /* Error Delimiter */ +# define CAN_ICR_ERRBIT_CRCDLM (24 << CAN_ICR_ERRBIT_SHIFT) /* CRC Delimiter */ +# define CAN_ICR_ERRBIT_ACKSLT (25 << CAN_ICR_ERRBIT_SHIFT) /* Acknowledge Slot */ +# define CAN_ICR_ERRBIT_EOF (26 << CAN_ICR_ERRBIT_SHIFT) /* End of Frame */ +# define CAN_ICR_ERRBIT_ACKDLM (27 << CAN_ICR_ERRBIT_SHIFT) /* Acknowledge Delimiter */ +# define CAN_ICR_ERRBIT_OVLD (28 << CAN_ICR_ERRBIT_SHIFT) /* Overload flag */ +#define CAN_ICR_ERRDIR (1 << 21) /* Bit 21: Direction bit at time of error */ +#define CAN_ICR_ERRC_SHIFT (22) /* Bits 22-23: Type of error */ +#define CAN_ICR_ERRC_MASK (3 << CAN_ICR_ERRC_SHIFT) +# define CAN_ICR_ERRC_BIT (0 << CAN_ICR_ERRC_SHIFT) +# define CAN_ICR_ERRC_FORM (1 << CAN_ICR_ERRC_SHIFT) +# define CAN_ICR_ERRC_STUFF (2 << CAN_ICR_ERRC_SHIFT) +# define CAN_ICR_ERRC_OTHER (3 << CAN_ICR_ERRC_SHIFT) +#define CAN_ICR_ALCBIT_SHIFT (24) /* Bits 24-31: Bit number within frame */ +#define CAN_ICR_ALCBIT_MASK (0xff << CAN_ICR_ALCBIT_SHIFT) /* Interrupt Enable */ -#define CAN_IER_ - +#define CAN_IER_RIE (1 << 0) /* Bit 0: Receiver Interrupt Enable */ +#define CAN_IER_TIE1 (1 << 1) /* Bit 1: Transmit Interrupt Enable for Buffer1 */ +#define CAN_IER_EIE (1 << 2) /* Bit 2: Error Warning Interrupt Enable */ +#define CAN_IER_DOIE (1 << 3) /* Bit 3: Data Overrun Interrupt Enable */ +#define CAN_IER_WUIE (1 << 4) /* Bit 4: Wake-Up Interrupt Enable */ +#define CAN_IER_EPIE (1 << 5) /* Bit 5: Error Passive Interrupt Enable */ +#define CAN_IER_ALIE (1 << 6) /* Bit 6: Arbitration Lost Interrupt Enable */ +#define CAN_IER_BEIE (1 << 7) /* Bit 7: Bus Error Interrupt */ +#define CAN_IER_IDIE (1 << 8) /* Bit 8: ID Ready Interrupt Enable */ +#define CAN_IER_TIE2 (1 << 9) /* Bit 9: Transmit Interrupt Enable for Buffer2 */ +#define CAN_IER_TIE3 (1 << 10) /* Bit 10: Transmit Interrupt Enable for Buffer3 */ + /* Bits 11-31: Reserved */ /* Bus Timing */ -#define CAN_BTR_ - +#define CAN_BTR_BRP_SHIFT (0) /* Bits 0-9: Baud Rate Prescaler */ +#define CAN_BTR_BRP_MASK (0x3ff << CAN_BTR_BRP_SHIFT) + /* Bits 10-13: Reserved */ +#define CAN_BTR_SJW_SHIFT (14) /* Bits 14-15: Synchronization Jump Width */ +#define CAN_BTR_SJW_MASK (3 << CAN_BTR_SJW_SHIFT) +#define CAN_BTR_TESG1_SHIFT (16) /* Bits 16-19: Sync to sample delay */ +#define CAN_BTR_TESG1_MASK (15 << CAN_BTR_TESG1_SHIFT) +#define CAN_BTR_TESG2_SHIFT (20) /* Bits 20-22: smaple to next delay */ +#define CAN_BTR_TESG2_MASK (7 << CAN_BTR_TESG2_SHIFT) +#define CAN_BTR_SAM (1 << 23) /* Bit 23: Sampling */ + /* Bits 24-31: Reserved */ /* Error Warning Limit */ -#define CAN_EWL_ - +#define CAN_EWL_SHIFT (0) /* Bits 0-7: Error warning limit */ +#define CAN_EWL_MASK (0xff << CAN_EWL_SHIFT) + /* Bits 8-31: Reserved */ /* Status Register */ #define CAN_SR_