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Date: Fri, 28 Jan 2022 12:08:23 +0100
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Alexander Aring <alex.aring@...il.com>,
Stefan Schmidt <stefan@...enfreihafen.org>,
linux-wpan@...r.kernel.org
Cc: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
Michael Hennerich <michael.hennerich@...log.com>,
Varka Bhadram <varkabhadram@...il.com>,
Xue Liu <liuxuenetmail@...il.com>, Alan Ott <alan@...nal11.us>,
Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH wpan-next v2 3/5] net: mac802154: Convert the symbol duration into nanoseconds
Tdsym is often given in the spec as pretty small numbers in microseconds
and hence was reflected in the code as symbol_duration and was stored as
a u8. Actually, for UWB PHYs, the symbol duration is given in
nanoseconds and are as precise as picoseconds. In order to handle better
these PHYs, change the type of symbol_duration to u32 and store this
value in nanoseconds.
All the users of this variable are updated in a mechanical way.
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
drivers/net/ieee802154/at86rf230.c | 22 +++++++++++-----------
drivers/net/ieee802154/atusb.c | 22 +++++++++++-----------
drivers/net/ieee802154/ca8210.c | 2 +-
drivers/net/ieee802154/mcr20a.c | 8 ++++----
include/net/cfg802154.h | 4 ++--
net/mac802154/main.c | 8 ++++----
6 files changed, 33 insertions(+), 33 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index d3dc03926246..b08f08475426 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -1075,24 +1075,24 @@ at86rf212_set_channel(struct at86rf230_local *lp, u8 page, u8 channel)
if (channel == 0) {
if (page == 0) {
/* SUB:0 and BPSK:0 -> BPSK-20 */
- lp->hw->phy->symbol_duration = 50;
+ lp->hw->phy->symbol_duration = 50 * NSEC_PER_USEC;
} else {
/* SUB:1 and BPSK:0 -> BPSK-40 */
- lp->hw->phy->symbol_duration = 25;
+ lp->hw->phy->symbol_duration = 25 * NSEC_PER_USEC;
}
} else {
if (page == 0)
/* SUB:0 and BPSK:1 -> OQPSK-100/200/400 */
- lp->hw->phy->symbol_duration = 40;
+ lp->hw->phy->symbol_duration = 40 * NSEC_PER_USEC;
else
/* SUB:1 and BPSK:1 -> OQPSK-250/500/1000 */
- lp->hw->phy->symbol_duration = 16;
+ lp->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
}
- lp->hw->phy->lifs_period = IEEE802154_LIFS_PERIOD *
- lp->hw->phy->symbol_duration;
- lp->hw->phy->sifs_period = IEEE802154_SIFS_PERIOD *
- lp->hw->phy->symbol_duration;
+ lp->hw->phy->lifs_period =
+ (IEEE802154_LIFS_PERIOD * lp->hw->phy->symbol_duration) / 1000;
+ lp->hw->phy->sifs_period =
+ (IEEE802154_SIFS_PERIOD * lp->hw->phy->symbol_duration) / 1000;
return at86rf230_write_subreg(lp, SR_CHANNEL, channel);
}
@@ -1572,7 +1572,7 @@ at86rf230_detect_device(struct at86rf230_local *lp)
lp->hw->phy->supported.page[0].chunk[0].protocol = IEEE802154_OQPSK_PHY;
lp->hw->phy->supported.page[0].chunk[0].band = IEEE802154_2400_MHZ_BAND;
lp->hw->phy->current_channel = 11;
- lp->hw->phy->symbol_duration = 16;
+ lp->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
lp->hw->phy->supported.tx_powers = at86rf231_powers;
lp->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf231_powers);
lp->hw->phy->supported.cca_ed_levels = at86rf231_ed_levels;
@@ -1604,7 +1604,7 @@ at86rf230_detect_device(struct at86rf230_local *lp)
lp->hw->phy->supported.page[2].chunk[1].band = IEEE802154_915_MHZ_BAND;
lp->hw->phy->current_channel = 5;
- lp->hw->phy->symbol_duration = 25;
+ lp->hw->phy->symbol_duration = 25 * NSEC_PER_USEC;
lp->hw->phy->supported.lbt = NL802154_SUPPORTED_BOOL_BOTH;
lp->hw->phy->supported.tx_powers = at86rf212_powers;
lp->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf212_powers);
@@ -1619,7 +1619,7 @@ at86rf230_detect_device(struct at86rf230_local *lp)
lp->hw->phy->supported.page[0].chunk[0].protocol = IEEE802154_OQPSK_PHY;
lp->hw->phy->supported.page[0].chunk[0].band = IEEE802154_2400_MHZ_BAND;
lp->hw->phy->current_channel = 13;
- lp->hw->phy->symbol_duration = 16;
+ lp->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
lp->hw->phy->supported.tx_powers = at86rf233_powers;
lp->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf233_powers);
lp->hw->phy->supported.cca_ed_levels = at86rf233_ed_levels;
diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
index 7e8c9d6db7d7..80382919520e 100644
--- a/drivers/net/ieee802154/atusb.c
+++ b/drivers/net/ieee802154/atusb.c
@@ -678,24 +678,24 @@ static int hulusb_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
if (channel == 0) {
if (page == 0) {
/* SUB:0 and BPSK:0 -> BPSK-20 */
- lp->hw->phy->symbol_duration = 50;
+ lp->hw->phy->symbol_duration = 50 * NSEC_PER_USEC;
} else {
/* SUB:1 and BPSK:0 -> BPSK-40 */
- lp->hw->phy->symbol_duration = 25;
+ lp->hw->phy->symbol_duration = 25 * NSEC_PER_USEC;
}
} else {
if (page == 0)
/* SUB:0 and BPSK:1 -> OQPSK-100/200/400 */
- lp->hw->phy->symbol_duration = 40;
+ lp->hw->phy->symbol_duration = 40 * NSEC_PER_USEC;
else
/* SUB:1 and BPSK:1 -> OQPSK-250/500/1000 */
- lp->hw->phy->symbol_duration = 16;
+ lp->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
}
- lp->hw->phy->lifs_period = IEEE802154_LIFS_PERIOD *
- lp->hw->phy->symbol_duration;
- lp->hw->phy->sifs_period = IEEE802154_SIFS_PERIOD *
- lp->hw->phy->symbol_duration;
+ lp->hw->phy->lifs_period =
+ (IEEE802154_LIFS_PERIOD * lp->hw->phy->symbol_duration) / 1000;
+ lp->hw->phy->sifs_period =
+ (IEEE802154_SIFS_PERIOD * lp->hw->phy->symbol_duration) / 1000;
return atusb_write_subreg(lp, SR_CHANNEL, channel);
}
@@ -919,7 +919,7 @@ static int atusb_get_and_conf_chip(struct atusb *atusb)
atusb->hw->phy->supported.page[0].chunk[0].protocol = IEEE802154_OQPSK_PHY;
atusb->hw->phy->supported.page[0].chunk[0].band = IEEE802154_2400_MHZ_BAND;
atusb->hw->phy->current_channel = 11; /* reset default */
- atusb->hw->phy->symbol_duration = 16;
+ atusb->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
atusb->hw->phy->supported.tx_powers = atusb_powers;
atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
hw->phy->supported.cca_ed_levels = atusb_ed_levels;
@@ -932,7 +932,7 @@ static int atusb_get_and_conf_chip(struct atusb *atusb)
atusb->hw->phy->supported.page[0].chunk[0].protocol = IEEE802154_OQPSK_PHY;
atusb->hw->phy->supported.page[0].chunk[0].band = IEEE802154_2400_MHZ_BAND;
atusb->hw->phy->current_channel = 11; /* reset default */
- atusb->hw->phy->symbol_duration = 16;
+ atusb->hw->phy->symbol_duration = 16 * NSEC_PER_USEC;
atusb->hw->phy->supported.tx_powers = atusb_powers;
atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
hw->phy->supported.cca_ed_levels = atusb_ed_levels;
@@ -963,7 +963,7 @@ static int atusb_get_and_conf_chip(struct atusb *atusb)
atusb->hw->phy->supported.page[2].chunk[1].band = IEEE802154_915_MHZ_BAND;
atusb->hw->phy->current_channel = 5;
- atusb->hw->phy->symbol_duration = 25;
+ atusb->hw->phy->symbol_duration = 25 * NSEC_PER_USEC;
atusb->hw->phy->supported.lbt = NL802154_SUPPORTED_BOOL_BOTH;
atusb->hw->phy->supported.tx_powers = at86rf212_powers;
atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf212_powers);
diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index b4ba38151576..8eb48a8014db 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -2978,7 +2978,7 @@ static void ca8210_hw_setup(struct ieee802154_hw *ca8210_hw)
ca8210_hw->phy->cca.mode = NL802154_CCA_ENERGY_CARRIER;
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->symbol_duration = 16 * NSEC_PER_USEC;
ca8210_hw->phy->lifs_period = 40;
ca8210_hw->phy->sifs_period = 12;
ca8210_hw->flags =
diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c
index e2c249aef430..34063b7e663e 100644
--- a/drivers/net/ieee802154/mcr20a.c
+++ b/drivers/net/ieee802154/mcr20a.c
@@ -975,9 +975,9 @@ static void mcr20a_hw_setup(struct mcr20a_local *lp)
dev_dbg(printdev(lp), "%s\n", __func__);
- phy->symbol_duration = 16;
- phy->lifs_period = 40 * phy->symbol_duration;
- phy->sifs_period = 12 * phy->symbol_duration;
+ phy->symbol_duration = 16 * NSEC_PER_USEC;
+ phy->lifs_period = (40 * phy->symbol_duration) / NSEC_PER_USEC;
+ phy->sifs_period = (12 * phy->symbol_duration) / NSEC_PER_USEC;
hw->flags = IEEE802154_HW_TX_OMIT_CKSUM |
IEEE802154_HW_AFILT |
@@ -1010,7 +1010,7 @@ static void mcr20a_hw_setup(struct mcr20a_local *lp)
phy->current_page = 0;
/* MCR20A default reset value */
phy->current_channel = 20;
- phy->symbol_duration = 16;
+ phy->symbol_duration = 16 * NSEC_PER_USEC;
phy->supported.tx_powers = mcr20a_powers;
phy->supported.tx_powers_size = ARRAY_SIZE(mcr20a_powers);
phy->cca_ed_level = phy->supported.cca_ed_levels[75];
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 03c8008217fb..286709a9dd0b 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -253,8 +253,8 @@ struct wpan_phy {
/* PHY depended MAC PIB values */
- /* 802.15.4 acronym: Tdsym in usec */
- u8 symbol_duration;
+ /* 802.15.4 acronym: Tdsym in nsec */
+ u32 symbol_duration;
/* lifs and sifs periods timing */
u16 lifs_period;
u16 sifs_period;
diff --git a/net/mac802154/main.c b/net/mac802154/main.c
index 520cedc594e1..53153367f9d0 100644
--- a/net/mac802154/main.c
+++ b/net/mac802154/main.c
@@ -131,10 +131,10 @@ static void ieee802154_setup_wpan_phy_pib(struct wpan_phy *wpan_phy)
* Should be done when all drivers sets this value.
*/
- wpan_phy->lifs_period = IEEE802154_LIFS_PERIOD *
- wpan_phy->symbol_duration;
- wpan_phy->sifs_period = IEEE802154_SIFS_PERIOD *
- wpan_phy->symbol_duration;
+ wpan_phy->lifs_period =
+ (IEEE802154_LIFS_PERIOD * wpan_phy->symbol_duration) / 1000;
+ wpan_phy->sifs_period =
+ (IEEE802154_SIFS_PERIOD * wpan_phy->symbol_duration) / 1000;
}
int ieee802154_register_hw(struct ieee802154_hw *hw)
--
2.27.0
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