C_CAN changes

[lincan.git] / lincan / src / c_can.c

diff --git a/lincan/src/c_can.c b/lincan/src/c_can.c
index a0503b49be2e6fb75f2b6c30647abe84454b2d8c..2add4287d179db55c703ae851c0747ad0f9823f0 100644 (file)
--- a/lincan/src/c_can.c
+++ b/lincan/src/c_can.c
@@ -466,7 +466,7 @@ int c_can_config_irqs(struct canchip_t *pchip,
    DEBUGMSG("(c%d)calling c_can_config_irqs(...)\n", pchip->chip_idx);
 
    tempreg = c_can_read_reg_w(pchip, CCCR);
-   //DEBUGMSG("-> CAN Control Register: 0x%.4lx\n",(long)tempreg);
+   DEBUGMSG("-> CAN Control Register: 0x%4lx\n",(long)tempreg);
    c_can_write_reg_w(pchip, tempreg | (irqs & 0xe), CCCR);
    DEBUGMSG("-> Configured hardware interrupt delivery\n");
    return 0;
@@ -484,29 +484,30 @@ int c_can_pre_read_config(struct canchip_t *pchip, struct msgobj_t *pmsgobj)
 
    spin_lock( &c_can_if1lock );
 
-   //loading Message Object in IF1
    if (c_can_if1_busycheck(pmsgobj->hostchip))
        goto error_enodev;
    
+   //loading Message Object in IF1
    c_can_write_reg_w(pmsgobj->hostchip, readMaskCM, CCIF1CM);
    c_can_write_reg_w(pmsgobj->hostchip, pmsgobj->object, CCIF1CR);
 
-   //setting Message Valid Bit to zero
    if (c_can_if1_busycheck(pmsgobj->hostchip))
        goto error_enodev;
 
+   //setting Message Valid Bit to zero
    c_can_write_reg_w(pmsgobj->hostchip, 0, CCIF1A2);
    c_can_write_reg_w(pmsgobj->hostchip, writeMaskCM, CCIF1CM);
    c_can_write_reg_w(pmsgobj->hostchip, pmsgobj->object, CCIF1CR);
 
-   //Configuring Message-Object
    /* Only access when the C_CAN controller is idle */
    if (c_can_if1_busycheck(pmsgobj->hostchip))
        goto error_enodev;
 
-   mcreg = c_can_read_reg_w(pmsgobj->hostchip, CCIF1CM);
+   //Configuring Message-Object
+   mcreg = c_can_read_reg_w(pmsgobj->hostchip, CCIF1DMC);
    c_can_write_reg_w(pmsgobj->hostchip, 
                      ((mcreg & IFXMC_UMASK) | IFXMC_EOB | IFXMC_RXIE), CCIF1DMC);
+
    //writing arbitration mask for extended or standart mode
    if (can_msgobj_test_fl(pmsgobj,RX_MODE_EXT))
      {
@@ -750,6 +751,29 @@ int c_can_stop_chip(struct canchip_t *pchip)
    return 0;
 }
 
+int c_can_attach_to_chip(struct canchip_t *chip)
+{
+       return 0;
+}
+
+int c_can_release_chip(struct canchip_t *chip)
+{
+       int temp;
+
+       temp = c_can_read_reg_w(chip, CCCR);
+
+       /* Disable IRQ generation */
+       c_can_config_irqs(chip, 0);
+
+       temp = c_can_read_reg_w(chip, CCCR);
+
+       /* Power-down C_CAN, except this does nothing in the version 1.2 */
+       c_can_stop_chip(chip);
+
+
+       return 0;
+}
+
 ///////////////////////////////////////////////////////////////////////
 /*
  *Check the TxOK bit of the Status Register and resets it afterwards.
@@ -946,6 +970,8 @@ int c_can_register(struct chipspecops_t *chipspecops)
        chipspecops->remote_request=c_can_remote_request;
        chipspecops->enable_configuration=c_can_enable_configuration;
        chipspecops->disable_configuration=c_can_disable_configuration;
+       chipspecops->attach_to_chip=c_can_attach_to_chip;
+       chipspecops->release_chip=c_can_release_chip;
        chipspecops->set_btregs=c_can_set_btregs;
        chipspecops->start_chip=c_can_start_chip;
        chipspecops->stop_chip=c_can_stop_chip;