Re: [PATCH v3 bluetooth-next] ieee802154: add set transmit power support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

On 05/27/2015 02:44 AM, Alexander Aring wrote:

Hi,

On Tue, May 26, 2015 at 09:17:04PM +0530, Varka Bhadram wrote:
This patch adds transmission power setting support for IEEE-802.15.4
devices via nl802154.

Signed-off-by: Varka Bhadram <varkab@xxxxxxx>
---
  include/net/cfg802154.h   |    1 +
  net/ieee802154/nl802154.c |   29 +++++++++++++++++++++++++++++
  net/ieee802154/rdev-ops.h |   12 ++++++++++++
  net/ieee802154/trace.h    |   15 +++++++++++++++
  net/mac802154/cfg.c       |   19 +++++++++++++++++++
  5 files changed, 76 insertions(+)

diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 4de59aa..2e3bb01 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -44,6 +44,7 @@ struct cfg802154_ops {
  	int	(*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
  	int	(*set_cca_mode)(struct wpan_phy *wpan_phy,
  				const struct wpan_phy_cca *cca);
+	int     (*set_tx_power)(struct wpan_phy *wpan_phy, s32 power);
  	int	(*set_pan_id)(struct wpan_phy *wpan_phy,
  			      struct wpan_dev *wpan_dev, __le16 pan_id);
  	int	(*set_short_addr)(struct wpan_phy *wpan_phy,
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 54f4959..cfdb6e0 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -783,6 +783,27 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
  	return rdev_set_cca_mode(rdev, &cca);
  }
+static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg802154_registered_device *rdev = info->user_ptr[0];
+	s32 power;
+	int i;
+
+	if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
+		return -EOPNOTSUPP;
	if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
		return -EOPNOTSUPP;

I did it also wrong in the cca mode setting. I recently send a patch for
fixing this.

+
+	if (!info->attrs[NL802154_ATTR_TX_POWER])
+		return -EINVAL;
+
+	power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
+
+	for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++)
+		if (power == rdev->wpan_phy.supported.tx_powers[i])
+			return rdev_set_tx_power(rdev, power);
please add brackets for the for loop.

Done. Send the updated patch to ML.

Otherwise it's looking good. Do you want also change the stuff for
wpan-tools? I have the following solution currently for a fast testing
which works in my first tests:

diff --git a/src/phy.c b/src/phy.c
index ee0e7ad..285801c 100644
--- a/src/phy.c
+++ b/src/phy.c
@@ -53,14 +53,14 @@ static int handle_tx_power_set(struct nl802154_state *state,
                                int argc, char **argv,
                                enum id_input id)
  {
-       long dbm;
+       float dbm;
         char *end;
if (argc < 1)
                 return 1;
/* TX_POWER */
-       dbm = strtol(argv[0], &end, 10);
+       dbm = strtof(argv[0], &end);
         if (*end != '\0')
                 return 1;

I also had same patch in my queue.

Will you add this patch to wpan-tools ?
	or
Do you want me to send this patch to ML.?

--
Varka Bhadram

--
To unsubscribe from this list: send the line "unsubscribe linux-wpan" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux