diff options
| author | Wolfgang Grandegger <wg@grandegger.com> | 2012-02-01 11:14:13 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-02-03 01:21:26 +0100 |
| commit | 79d0d8a7d5edca459f544c2ad75088e99307795e (patch) | |
| tree | 97126b05dd6906f42ce717ba97f5ac9361bfaecb /drivers/net/can | |
| parent | can: Kconfig: add more information about Intel EG20T PCH CAN controller (diff) | |
| download | linux-79d0d8a7d5edca459f544c2ad75088e99307795e.tar.xz linux-79d0d8a7d5edca459f544c2ad75088e99307795e.zip | |
can: bfin_can/ti_hecc/mscan: add missing do_get_berr_counter callback
Cc: Anant Gole <anantgole@ti.com>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/bfin_can.c | 15 | ||||
| -rw-r--r-- | drivers/net/can/mscan/mscan.c | 16 | ||||
| -rw-r--r-- | drivers/net/can/ti_hecc.c | 12 |
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(®->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(®s->cantxerr); + bec->rxerr = in_8(®s->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(®s->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); |