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Spirit Radio: Add support for CSMA backoff count reached interrupt.

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This commit is contained in:
Gregory Nutt 2017-08-08 10:34:51 -06:00
parent 79400ea960
commit 09f31d1371
2 changed files with 58 additions and 19 deletions
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19
configs/b-l475e-iot01a/README.txt
View File

@ -593,5 +593,20 @@ Configuration sub-directories
I would say it is functional but fragile in this usage, but probably
robust in a less busy environment.
2017-08-08: Added and verified broadcast packet transfers using the
hub-based broadcast UDP client.
2017-08-08: Added broadcast packet transfers using the hub-based
broadcast UDP client. This appears to be a problem the HC06
compression/decompression. The decompression logic comes up with
the destination address as ff02::ff00:00fe:3500 (which the receiving
node address is 37) instead of ff02::0001. It is then out of sync
with the IPHC headers and is unable to uncompress the rest of the
packet correction.
Trying again with HC1 compression, I see other isses. The first
frame is received correctly, the following frames have an incorrect
packet length.
There is probably another issue related to broadcast TX setup: If
we are sending to the multicast or broadcast address, should we
not also disable ACKs, retries, and RX timeouts? What will happen
if multiple radios ACK? At a minimum it could keep the driver
unnecessarily busy.

58
drivers/wireless/spirit/drivers/spirit_netdev.c
View File

@ -1121,11 +1121,28 @@ static void spirit_interrupt_work(FAR void *arg)
}
if (irqstatus.IRQ_TX_FIFO_ERROR != 0 ||
irqstatus.IRQ_MAX_RE_TX_REACH != 0)
irqstatus.IRQ_MAX_RE_TX_REACH != 0 ||
irqstatus.IRQ_MAX_BO_CCA_REACH != 0)
{
wlwarn("WARNING: Tx FIFO Error/Max retries\n");
#ifdef CONFIG_DEBUG_WIRELESS_WARN
wlwarn("WARNING: Tx Error\n");
if (irqstatus.IRQ_TX_FIFO_ERROR != 0)
{
wlwarn(" Tx FIFO Error\n");
}
/* Discard TX data */
if (irqstatus.IRQ_MAX_RE_TX_REACH != 0)
{
wlwarn(" Max retries reached\n");
}
if (irqstatus.IRQ_MAX_BO_CCA_REACH != 0)
{
wlwarn(" Max backoff reached\n");
}
#endif
/* Discard TX data in the FIFO */
DEBUGVERIFY(spirit_command(spirit, COMMAND_FLUSHTXFIFO));
irqstatus.IRQ_TX_DATA_SENT = 0;
@ -2519,20 +2536,6 @@ int spirit_hw_initialize(FAR struct spirit_driver_s *priv,
return ret;
}
ret = spirit_irq_enable(spirit, TX_FIFO_ERROR, S_ENABLE);
if (ret < 0)
{
wlerr("ERROR: Enable TX_FIFO_ERROR failed: %d\n", ret);
return ret;
}
ret = spirit_irq_enable(spirit, RX_FIFO_ERROR, S_ENABLE);
if (ret < 0)
{
wlerr("ERROR: Enable RX_FIFO_ERROR failed: %d\n", ret);
return ret;
}
#ifdef CONFIG_SPIRIT_FIFOS
#if CONFIG_SPIRIT_PKTLEN > SPIRIT_MAX_FIFO_LEN
ret = spirit_irq_enable(spirit, TX_FIFO_ALMOST_EMPTY, S_ENABLE);
@ -2551,6 +2554,27 @@ int spirit_hw_initialize(FAR struct spirit_driver_s *priv,
}
#endif
ret = spirit_irq_enable(spirit, TX_FIFO_ERROR, S_ENABLE);
if (ret < 0)
{
wlerr("ERROR: Enable TX_FIFO_ERROR failed: %d\n", ret);
return ret;
}
ret = spirit_irq_enable(spirit, RX_FIFO_ERROR, S_ENABLE);
if (ret < 0)
{
wlerr("ERROR: Enable RX_FIFO_ERROR failed: %d\n", ret);
return ret;
}
ret = spirit_irq_enable(spirit, MAX_BO_CCA_REACH, S_ENABLE);
if (ret < 0)
{
wlerr("ERROR: Enable MAX_BO_CCA_REACH failed: %d\n", ret);
return ret;
}
/* Configure Spirit1 */
wlinfo("Configure Spriti1\n");