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-rw-r--r--drivers/net/can/bfin_can.c15
-rw-r--r--drivers/net/can/mscan/mscan.c16
-rw-r--r--drivers/net/can/ti_hecc.c12
3 files changed, 42 insertions, 1 deletions
diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index 349e0fabb63a..e1e7f9da3da5 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -224,6 +224,20 @@ static int bfin_can_set_mode(struct net_device *dev, enum can_mode mode)
return 0;
}
+static int bfin_can_get_berr_counter(const struct net_device *dev,
+ struct can_berr_counter *bec)
+{
+ struct bfin_can_priv *priv = netdev_priv(dev);
+ struct bfin_can_regs __iomem *reg = priv->membase;
+
+ u16 cec = bfin_read(&reg->cec);
+
+ bec->txerr = cec >> 8;
+ bec->rxerr = cec;
+
+ return 0;
+}
+
static int bfin_can_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct bfin_can_priv *priv = netdev_priv(dev);
@@ -509,6 +523,7 @@ struct net_device *alloc_bfin_candev(void)
priv->can.bittiming_const = &bfin_can_bittiming_const;
priv->can.do_set_bittiming = bfin_can_set_bittiming;
priv->can.do_set_mode = bfin_can_set_mode;
+ priv->can.do_get_berr_counter = bfin_can_get_berr_counter;
priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
return dev;
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index 1c82dd8b896e..d11b0832ccd6 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -560,6 +560,18 @@ static int mscan_do_set_bittiming(struct net_device *dev)
return 0;
}
+static int mscan_get_berr_counter(const struct net_device *dev,
+ struct can_berr_counter *bec)
+{
+ struct mscan_priv *priv = netdev_priv(dev);
+ struct mscan_regs __iomem *regs = priv->reg_base;
+
+ bec->txerr = in_8(&regs->cantxerr);
+ bec->rxerr = in_8(&regs->canrxerr);
+
+ return 0;
+}
+
static int mscan_open(struct net_device *dev)
{
int ret;
@@ -639,8 +651,10 @@ int register_mscandev(struct net_device *dev, int mscan_clksrc)
else
ctl1 &= ~MSCAN_CLKSRC;
- if (priv->type == MSCAN_TYPE_MPC5121)
+ if (priv->type == MSCAN_TYPE_MPC5121) {
+ priv->can.do_get_berr_counter = mscan_get_berr_counter;
ctl1 |= MSCAN_BORM; /* bus-off recovery upon request */
+ }
ctl1 |= MSCAN_CANE;
out_8(&regs->canctl1, ctl1);
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index df809e3f130e..aee925ab0de8 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -458,6 +458,17 @@ static int ti_hecc_do_set_mode(struct net_device *ndev, enum can_mode mode)
return ret;
}
+static int ti_hecc_get_berr_counter(const struct net_device *ndev,
+ struct can_berr_counter *bec)
+{
+ struct ti_hecc_priv *priv = netdev_priv(ndev);
+
+ bec->txerr = hecc_read(priv, HECC_CANTEC);
+ bec->rxerr = hecc_read(priv, HECC_CANREC);
+
+ return 0;
+}
+
/*
* ti_hecc_xmit: HECC Transmit
*
@@ -922,6 +933,7 @@ static int ti_hecc_probe(struct platform_device *pdev)
priv->can.bittiming_const = &ti_hecc_bittiming_const;
priv->can.do_set_mode = ti_hecc_do_set_mode;
priv->can.do_get_state = ti_hecc_get_state;
+ priv->can.do_get_berr_counter = ti_hecc_get_berr_counter;
priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
spin_lock_init(&priv->mbx_lock);