diff options
Diffstat (limited to 'drivers/net/can/mcp251x.c')
| -rw-r--r-- | drivers/net/can/mcp251x.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index 1a72ca066a17..bbe186b5a0ed 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -494,12 +494,8 @@ static netdev_tx_t mcp251x_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } - if (skb->len != sizeof(struct can_frame)) { - dev_err(&spi->dev, "dropping packet - bad length\n"); - dev_kfree_skb(skb); - net->stats.tx_dropped++; + if (can_dropped_invalid_skb(net, skb)) return NETDEV_TX_OK; - } netif_stop_queue(net); priv->tx_skb = skb; @@ -543,9 +539,14 @@ static void mcp251x_set_normal_mode(struct spi_device *spi) if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) { /* Put device into loopback mode */ mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_LOOPBACK); + } else if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) { + /* Put device into listen-only mode */ + mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_LISTEN_ONLY); } else { /* Put device into normal mode */ - mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_NORMAL); + mcp251x_write_reg(spi, CANCTRL, CANCTRL_REQOP_NORMAL | + (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT ? + CANCTRL_OSM : 0)); /* Wait for the device to enter normal mode */ timeout = jiffies + HZ; @@ -952,6 +953,10 @@ static int __devinit mcp251x_can_probe(struct spi_device *spi) priv->can.bittiming_const = &mcp251x_bittiming_const; priv->can.do_set_mode = mcp251x_do_set_mode; priv->can.clock.freq = pdata->oscillator_frequency / 2; + priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES | + CAN_CTRLMODE_LOOPBACK | CAN_CTRLMODE_LISTENONLY; + if (pdata->model == CAN_MCP251X_MCP2515) + priv->can.ctrlmode_supported |= CAN_CTRLMODE_ONE_SHOT; priv->net = net; dev_set_drvdata(&spi->dev, priv); |