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Commit 133be026 authored by Varka Bhadram's avatar Varka Bhadram Committed by Marcel Holtmann
Browse files

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: default avatarVarka Bhadram <varkab@cdac.in>
Acked-by: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 8a70cefa

include/net/nl802154.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

net/ieee802154/nl802154.c

+40 −0
Original line number Diff line number Diff line
@@ -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;