ausb_bulk_read may lose data when timing out. We therefore try to
minimize the number of times we time out. Reading until no more
interrupts arrive may have looked like a good idea, but it just
causes trouble for now.
- lib/atrf.c (atrf_interrupt_wait): interrupt_wait is no longer
optional
- atrf-proxy/atrf-proxy.c (cmd_more): we no longer need to handle
atrf_interrupt_wait being unsupported
- lib/atusb-common.c (atusb_interrupt_wait): clarify what we don't
want to return -1 on error
- include/misctxrx.h (wait_for_interrupt), lib/misctxrx.c
(wait_for_interrupt): replaced sleep_us*timeout limiting mechanism
with a single timeout value in milliseconds
- lib/misctxrx.c (wait_for_interrupt): use atrf_interrupt_wait instead
of polling
- lib/misctxrx.c (wait_for_interrupt): cleaned up control flow
- lib/misctxrx.c (run, die, wait_for_interrupt): renamed variable "run"
to more specific "sigint"
- atrf-txrx/atrf-txrx.c (ping_rx, ping): pass timeout in milliseconds,
not deciseconds
- atrf-rssi/atrf-rssi.c (sweep), atrf-rssi/gui.c (sweep),
atrf-txrx/atrf-txrx.c (init_txrx, receive_message, receive_pcap,
receive, transmit, transmit_pattern, ping_tx, ping_rx),
atrf-xmit/atrf-xmit.c (init_tx, init_rx, xfer_one),
lib/cwtest.c (enter_test_mode_230, start_test_mode_231):
updated use of wait_for_interrupt
- atben.c (atben_interrupt_wait): loop until either the timeout has
been reached or an interrupt has occurred
- atben.c (atben_driver): added atben_interrupt_wait
- atusb-common.c (atusb_open): claim interface, so that we can do bulk
I/O without complaints from the kernel
- atusb-common.h (atusb_interrupt_wait), atusb-common.c: blocking read
for interrupt status byte on EP1
- atusb.c (atusb_driver), atusb-spi.c (atusb_spi_driver): provide the
interrupt_wait operation
- tools/lib/driver.h (struct atrf_driver): new driver operation
interrupt_wait
- include/atrf.h (atrf_interrupt_wait), atrf.c: new function to
wait for a transceiver interrupt without polling
- include/cwtest.h (cw_test_needs_reset), lib/cwtest.c
(cw_test_needs_reset): new function to indicate all cases where the
transceiver needs to be reset (instead of using SLP_TR)
- lib/cwtest.c (cw_test_end): use cw_test_needs_reset instead of
open-coding the decision
- lib/cwtest.c (enter_test_mode_230, start_test_mode_231): always wait
for the PLL to lock. Contrary to the assumption in the previous
commit, we should always see this interrupt.
- atrf-path/atrf-path.c (sample): initialize the transceiver if we had
to reset it
- atrf-path/atrf-path.c (sample), atrf-path/atrf-path.c (do_half_sweep):
moved the tTR19 delay to "sweep", so that all branches share it and it
is taken only once
We seem to have a path where the PLL is already locked when we get
there. We thus never get an interrupt and hang.
Pending further investigation, just use a timeout that is longer
than the worst-case PLL lock time.
ATUSB can't use sleep mode because that would cut the AVR's clock.
The old SiLabs-based boards would not have that issue, but there,
the SLP_TR method is unproven. Besides, reset is as fast on USB.
- usbopen.c (open_usb): determine vendor and product objective outside
the loop
- usbopen.c (open_usb): check vendor and product only if non-zero
- usbopen.c (bad_id, parse_usb_id): vendor and product can now be
omitted
- tools/include/usbopen.h (usb_rescan), tools/lib/usbopen.c (initialized,
initialize, usb_rescan): usb_rescan forces a re-initialization of
libusb and a new scan of the USB device tree
- include/atrf.h (atrf_driver_spec), lib/atrf.c (atrf_driver_spec):
new function to retrieve the local or remote/final driver spec
- lib/atrf.c (struct atrf_dsc, atrf_open, atrf_close): record the local
driver spec
- lib/driver.h (struct atrf_driver): new driver function "driver_spec"
to retrieve the driver spec
- lib/atnet.c (struct atnet_dsc, atnet_open, atnet_close): maintain a
cache for the driver spec
- lib/atnet.c (atnet_driver_spec, atnet_driver): added support for the
"driver_spec" function
- atrf-proxy/PROTOCOL, atrf-proxy/atrf-proxy.c (cmd_zero): added command
SPEC to retrieve the (final) driver spec
- atrf-id/atrf-id.c (usage, main): added option -s to retrieve the
driver spec. One -s retrieves the local spec, -s -s the remote/final.
- lib/cwtest.c (enter_test_mode_231, prepare_test_mode_231,
start_test_mode_231, cw_test_begin): broke enter_test_mode_231 into
a slow setup component and a fast start/resume component
- include/cwtest.h (cw_test_resume), lib/cwtest.c (cw_test_resume):
resume transmission in a previously set up test mode
The transceiver reset takes quite a while. It seems that also going into
sleep mode has the effect of stopping cw test mode and it's much faster.
This has only been tried on the AT86RF231. For AT86RF230, we therefore
still use the reset.
Performance improvement:
Measurement: atrf-path sweep time in GUI mode, averaging over 10 samples.
Running on PC with remote ATBEN transceivers.
before 7.36-7.68 s
after 2.08 s (27-28% of previous time)
- lib/misctxrx.c (tx_pwr_230, tx_pwr_231): declare tables as "const"
- lib/misctxrx.c (POWER_TABLE_SIZE, set_power_dBm): don't open-code the
table size calculation
- lib/misctxrx.c (tx_power_table, set_power_dBm): moved transmit power
table selection out of set_power_dBm
- include/misctxrx.h (tx_power_dBm2step, tx_power_step2dBm),
lib/misctxrx.c (tx_power_dBm2step, tx_power_step2dBm, set_power_dBm):
moved conversion functions out of set_power_dBm and made them globally
available
- atrf-txrx/atrf-txrx.c (tx_pwr_230, tx_pwr_231, set_power): moved to
lib/misctxrx.c
- include/misctxrx.h, lib/misctxr.c (set_power_step, set_power_dBm):
separated dBm to index conversion from the actual operation
- atrf-txrx/atrf-txrx.c (main): use new set_power_dBm instead of old
set_power
- atnet.c: introduced descriptor structure, replacing direct netio handle
- atnet.c (reply, error): moved global variables into descriptor
- atnet.c (atnet_reg_read, atnet_interrupt): when complaining about an
invalid response, skip the leading "+"
- atusb.c: introduced descriptor structure, replacing direct USB device
handle
- atusb.c (error): moved global variable into descriptor
- driver.h (atusb_dev_handle), atusb.c (atusb_dev_handle), atrf.c
(atrf_usb_handle): call driver to perform the no longer trivial
translation
- atnet.c: driver "net", which accessed hardware via atrf-proxy
- Makefile (OBJS): added atnet.o
- driver.h (atnet_driver), atrf.c (drivers): added the atnet driver
- atrf.c (drivers): moved the driver list closer to the top
