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nl802154: export supported commands 

This patch will export the supported commands by the devices
to the userspace. This will be useful to check if HardMAC
drivers can support a specific command or not.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Varka Bhadram 2015-06-04 13:07:36 +05:30 committed by Marcel Holtmann
parent 8a70cefa30
commit 133be0264f
2 changed files with 42 additions and 0 deletions
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2
include/net/nl802154.h
View File

@ -102,6 +102,8 @@ enum nl802154_attrs {
NL802154_ATTR_WPAN_PHY_CAPS,
NL802154_ATTR_SUPPORTED_COMMANDS,
/* add attributes here, update the policy in nl802154.c */
__NL802154_ATTR_AFTER_LAST,

40
net/ieee802154/nl802154.c
View File

@ -228,6 +228,8 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
[NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
[NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
[NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
};
/* message building helper */
@ -372,7 +374,9 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
struct sk_buff *msg, u32 portid, u32 seq,
int flags)
{
struct nlattr *nl_cmds;
void *hdr;
int i;
hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
if (!hdr)
@ -431,6 +435,42 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
if (nl802154_put_capabilities(msg, rdev))
goto nla_put_failure;
nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
if (!nl_cmds)
goto nla_put_failure;
i = 0;
#define CMD(op, n) \
do { \
if (rdev->ops->op) { \
i++; \
if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
goto nla_put_failure; \
} \
} while (0)
CMD(add_virtual_intf, NEW_INTERFACE);
CMD(del_virtual_intf, DEL_INTERFACE);
CMD(set_channel, SET_CHANNEL);
CMD(set_pan_id, SET_PAN_ID);
CMD(set_short_addr, SET_SHORT_ADDR);
CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
CMD(set_lbt_mode, SET_LBT_MODE);
if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
CMD(set_tx_power, SET_TX_POWER);
if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
CMD(set_cca_mode, SET_CCA_MODE);
#undef CMD
nla_nest_end(msg, nl_cmds);
finish:
genlmsg_end(msg, hdr);
return 0;