diff mbox series

[wpan-next,v3,1/4] net: ieee802154: ca8210: Fix lifs/sifs periods

Message ID 20220201180629.93410-2-miquel.raynal@bootlin.com (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series ieee802154: Improve durations handling | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Miquel Raynal Feb. 1, 2022, 6:06 p.m. UTC
These periods are expressed in time units (microseconds) while 40 and 12
are the number of symbol durations these periods will last. We need to
multiply them both with the symbol_duration in order to get these
values in microseconds.

Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/net/ieee802154/ca8210.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Stefan Schmidt Feb. 2, 2022, 5:05 p.m. UTC | #1
Hello.

On 01.02.22 19:06, Miquel Raynal wrote:
> These periods are expressed in time units (microseconds) while 40 and 12
> are the number of symbol durations these periods will last. We need to
> multiply them both with the symbol_duration in order to get these
> values in microseconds.
> 
> Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
>   drivers/net/ieee802154/ca8210.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
> index f3438d3e104a..2bc730fd260e 100644
> --- a/drivers/net/ieee802154/ca8210.c
> +++ b/drivers/net/ieee802154/ca8210.c
> @@ -2975,8 +2975,8 @@ static void ca8210_hw_setup(struct ieee802154_hw *ca8210_hw)
>   	ca8210_hw->phy->cca.opt = NL802154_CCA_OPT_ENERGY_CARRIER_AND;
>   	ca8210_hw->phy->cca_ed_level = -9800;
>   	ca8210_hw->phy->symbol_duration = 16;
> -	ca8210_hw->phy->lifs_period = 40;
> -	ca8210_hw->phy->sifs_period = 12;
> +	ca8210_hw->phy->lifs_period = 40 * ca8210_hw->phy->symbol_duration;
> +	ca8210_hw->phy->sifs_period = 12 * ca8210_hw->phy->symbol_duration;
>   	ca8210_hw->flags =
>   		IEEE802154_HW_AFILT |
>   		IEEE802154_HW_OMIT_CKSUM |
> 

As mentioned in the discussion on the other thread I ripped this one out 
and applied it as fix to the wpan tree. Thanks!

regards
Stefan Schmidt
diff mbox series

Patch

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index f3438d3e104a..2bc730fd260e 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -2975,8 +2975,8 @@  static void ca8210_hw_setup(struct ieee802154_hw *ca8210_hw)
 	ca8210_hw->phy->cca.opt = NL802154_CCA_OPT_ENERGY_CARRIER_AND;
 	ca8210_hw->phy->cca_ed_level = -9800;
 	ca8210_hw->phy->symbol_duration = 16;
-	ca8210_hw->phy->lifs_period = 40;
-	ca8210_hw->phy->sifs_period = 12;
+	ca8210_hw->phy->lifs_period = 40 * ca8210_hw->phy->symbol_duration;
+	ca8210_hw->phy->sifs_period = 12 * ca8210_hw->phy->symbol_duration;
 	ca8210_hw->flags =
 		IEEE802154_HW_AFILT |
 		IEEE802154_HW_OMIT_CKSUM |