diff options
Diffstat (limited to 'drivers/net/can/dev/dev.c')
| -rw-r--r-- | drivers/net/can/dev/dev.c | 59 |
1 files changed, 51 insertions, 8 deletions
diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c index 96c9d9db00cf..c1956b1e9faf 100644 --- a/drivers/net/can/dev/dev.c +++ b/drivers/net/can/dev/dev.c @@ -4,7 +4,6 @@ * Copyright (C) 2008-2009 Wolfgang Grandegger <wg@grandegger.com> */ -#include <linux/module.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/netdevice.h> @@ -17,12 +16,6 @@ #include <linux/gpio/consumer.h> #include <linux/of.h> -#define MOD_DESC "CAN device driver interface" - -MODULE_DESCRIPTION(MOD_DESC); -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Wolfgang Grandegger <wg@grandegger.com>"); - static void can_update_state_error_stats(struct net_device *dev, enum can_state new_state) { @@ -329,6 +322,56 @@ int can_change_mtu(struct net_device *dev, int new_mtu) } EXPORT_SYMBOL_GPL(can_change_mtu); +/* generic implementation of netdev_ops::ndo_eth_ioctl for CAN devices + * supporting hardware timestamps + */ +int can_eth_ioctl_hwts(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct hwtstamp_config hwts_cfg = { 0 }; + + switch (cmd) { + case SIOCSHWTSTAMP: /* set */ + if (copy_from_user(&hwts_cfg, ifr->ifr_data, sizeof(hwts_cfg))) + return -EFAULT; + if (hwts_cfg.tx_type == HWTSTAMP_TX_ON && + hwts_cfg.rx_filter == HWTSTAMP_FILTER_ALL) + return 0; + return -ERANGE; + + case SIOCGHWTSTAMP: /* get */ + hwts_cfg.tx_type = HWTSTAMP_TX_ON; + hwts_cfg.rx_filter = HWTSTAMP_FILTER_ALL; + if (copy_to_user(ifr->ifr_data, &hwts_cfg, sizeof(hwts_cfg))) + return -EFAULT; + return 0; + + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL(can_eth_ioctl_hwts); + +/* generic implementation of ethtool_ops::get_ts_info for CAN devices + * supporting hardware timestamps + */ +int can_ethtool_op_get_ts_info_hwts(struct net_device *dev, + struct ethtool_ts_info *info) +{ + info->so_timestamping = + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + info->phc_index = -1; + info->tx_types = BIT(HWTSTAMP_TX_ON); + info->rx_filters = BIT(HWTSTAMP_FILTER_ALL); + + return 0; +} +EXPORT_SYMBOL(can_ethtool_op_get_ts_info_hwts); + /* Common open function when the device gets opened. * * This function should be called in the open function of the device @@ -513,7 +556,7 @@ static __init int can_dev_init(void) err = can_netlink_register(); if (!err) - pr_info(MOD_DESC "\n"); + pr_info("CAN device driver interface\n"); return err; } |