MPC5200 with MSCAN - Beta version

[lincan.git] / lincan / include / mscan.h

diff --git a/lincan/include/mscan.h b/lincan/include/mscan.h
index 0daf98cc036aad68a6bbf42ca17f19dc5148f60b..a85a2911fa54b8161711be161c98bc80e7c32b60 100644 (file)
--- a/lincan/include/mscan.h
+++ b/lincan/include/mscan.h
@@ -33,9 +33,53 @@
 /* Publication of enhanced or derived LinCAN files is required although.  */
 /**************************************************************************/
 
+#ifndef LINCAN_MSCAN_H
+#define LINCAN_MSCAN_H
 
+
+
+#define MPC5200_DBG 0
+
+/* Debug - coarse approach */
+#if MPC5200_DBG
+       /* standard LinCAN core debug - used only for MPC5200 driver part */
+       #define DEBUGMSG(fmt,args...) can_printk(KERN_ERR "lincan (debug): " fmt,##args)
+
+       /* dump specific parts of chip memory */        
+       #define DUMPREGS(canchip) dump_regs(canchip)
+       #define DUMPBUFF(canchip, offset) dump_buff(canchip, offset)
+       #define DUMPFLT(canchip) dump_filter(canchip)
+
+       /* Debug Tx Rx operations */
+       #define DEBUGTX(fmt,args...) can_printk(KERN_ERR "lincan (debug): " fmt,##args)
+       #define DEBUGRX(fmt,args...) can_printk(KERN_ERR "lincan (debug): " fmt,##args)
+#else
+       #define DUMPREGS(canchip)
+       #define DUMPBUFF(canchip, offset)
+       #define DUMPFLT(canchip)
+       #define DEBUGTX(fmt,args...)
+       #define DEBUGRX(fmt,args...)
+#endif /* MPC5200_DBG */
+
+
+
+
+/* MSCAN register size */
 #define reg_t uint8_t
 
+
+/* Determine which clock source to use */
+/* 0 - use IP Bus clock                */
+/* 1 - use SYS_XTAL_IN frequency       */
+#define MPC5200_CLKSRC         1
+
+#if MPC5200_CLKSRC
+       #define MPC5200_CLK_FREQ        (MPC5200_SHARK_SYS_XTAL_FREQ/12)        /* 33MHz */
+#else
+       #define MPC5200_CLK_FREQ        (MPC5200_SHARK_IPB_FREQ/4)              /* 33MHz */
+#endif
+
+
 int mscan_chip_config(struct canchip_t *chip);
 int mscan_enable_configuration(struct canchip_t *chip);
 int mscan_disable_configuration(struct canchip_t *chip);
@@ -101,7 +145,7 @@ extern inline uint16_t can_read_reg_w(const struct canchip_t *pchip, unsigned re
 #define MSCAN_RIER     0x09            /* Receiver Interrupt Enable Register */
 #define MSCAN_TFLG     0x0c            /* Transmitter Flag Register */
 #define MSCAN_TIER     0x0d            /* Transmitter Interrupt Enable Register */
-#define MSCAN_TARG     0x10            /* Transmitter Message Abort Request Register */
+#define MSCAN_TARQ     0x10            /* Transmitter Message Abort Request Register */
 #define MSCAN_TAAK     0x11            /* Transmitter Message Abort Acknowledge Register */
 #define MSCAN_TBSEL    0x14            /* Transmitter Buffer Selection */
 #define MSCAN_IDAC     0x15            /* Identifier Acceptance Control Register */
@@ -183,7 +227,7 @@ enum mscan_rflg {
        MSCAN_RFLG_WUPIF        = 1 << 7,               /* WakeUp Interrupt Flag - rw */
        MSCAN_RFLG_CSCIF        = 1 << 6,               /* CAN Status Change Interrupt Flag - rw */
        MSCAN_RFLG_RSTAT        = 0x30,                 /* Receiver Status Bits: 0-RxOK, 1-RxWRN, 2-RxERR, 3-BusOff - ro */
-       MSCAN_RFLG_TSTAT        = 0x0a,                 /* Transmitter Status Bits: 0-TxOK, 1-TxWRN, 2-TxErr, 3-BusOff - ro */
+       MSCAN_RFLG_TSTAT        = 0x0c,                 /* Transmitter Status Bits: 0-TxOK, 1-TxWRN, 2-TxErr, 3-BusOff - ro */
        MSCAN_RFLG_OVRIF        = 1 << 1,               /* Overrun Interrupt Flag - rw */
        MSCAN_RFLG_RXF          = 1 << 0,               /* Receive Buffer Full - rw */
 };
@@ -192,7 +236,7 @@ enum mscan_rier {
        MSCAN_RIER_WUPIE        = 1 << 7,               /* WakeUp Interrupt Enable - rw */
        MSCAN_RIER_CSCIE        = 1 << 6,               /* CAN Status Change Interrupt Enable - rw */
        MSCAN_RIER_RSTATE       = 0x30,                 /* Receiver Status Change Enable: 0-Never, 1-BusOff, 2-BusOff+RxErr, 3-All - rw */
-       MSCAN_RIER_TSTATE       = 0x0a,                 /* Transmitter Status Change Enable: 0-Never, 1-BusOff, 2-BusOff+TxErr, 3-All - rw */
+       MSCAN_RIER_TSTATE       = 0x0c,                 /* Transmitter Status Change Enable: 0-Never, 1-BusOff, 2-BusOff+TxErr, 3-All - rw */
        MSCAN_RIER_OVRIE        = 1 << 1,               /* Overrun Interrupt Enable - rw */
        MSCAN_RIER_RXFIE        = 1 << 0,               /* Receive Buffer Full Interrupt Enable - rw */
 };
@@ -281,3 +325,41 @@ struct mscan_msg_buffer{
        uint8_t         timestamp_h;            /* local timestamp - High byte - Read Only */
        uint8_t         timestamp_l;            /* local timestamp - Low byte - Read Only */
 };
+
+/* structure for memory layout of acceptance
+ * filter registers
+ */
+struct mscan_flt_regs{
+       uint8_t         acp_id_0;
+       uint8_t         acp_id_1;
+       uint16_t        spacer_0;
+
+       uint8_t         acp_id_2;
+       uint8_t         acp_id_3;
+       uint16_t        spacer_1;
+
+       uint8_t         acp_mask_0;
+       uint8_t         acp_mask_1;
+       uint16_t        spacer_2;
+
+       uint8_t         acp_mask_2;
+       uint8_t         acp_mask_3;
+       uint16_t        spacer_3;
+
+       uint8_t         acp_id_4;
+       uint8_t         acp_id_5;
+       uint16_t        spacer_4;
+
+       uint8_t         acp_id_6;
+       uint8_t         acp_id_7;
+       uint16_t        spacer_5;
+
+       uint8_t         acp_mask_4;
+       uint8_t         acp_mask_5;
+       uint16_t        spacer_6;
+
+       uint8_t         acp_mask_6;
+       uint8_t         acp_mask_7;
+};
+
+#endif /* LINCAN_MSCAN_H */