Every single hardware driver has the very same implementation of the
dev_list() callback. Put this into a helper function in the standard helper
library and use it throughout the drivers. This reduces boiler-plate code
by quite a bit.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
std_init() allocates a drv_context struct which needs to be freed by the
driver in its cleanup struct. But the vast majority of drivers does never
does this causing memory leaks.
Instead of addressing the issue by manually adding code to free the struct
to each driver introduce a new helper function std_cleanup() that takes
care of this. In addition to freeing the drv_context struct std_cleanup()
also invokes sr_dev_clear() which takes care of freeing all devices
attached to the driver.
Combining both operations in the same helper function allows to use
std_cleanup() as the cleanup callback for all existing drivers, which
reduces the amount of boiler-plate code quite a bit.
All drivers are updated to use the new helper function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Devices for the scpi-pps driver do have additional data attached to it that
needs to be freed when the device is freed. While the driver gets it right
for the cleanup() callback it does not for the dev_clear() callback. This
will cause memory leaks when sr_dev_clear() is called for this driver.
To fix this let the dev_clear() free the additional data.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This makes the code shorter, simpler and more consistent, and also
ensures that the (same) debug messages are always emitted and the
packet.payload field is consistently set to NULL always, etc.
This fixes parts of bug #423.
The list of fixed warnings:
src/output/srzip.c:285:3: warning: Value stored to 'ret' is never read
ret = zip_append(o, logic->data, logic->unitsize, logic->length);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/scpi/scpi.c:610:2: warning: Value stored to 'ret' is never read
ret = SR_OK;
^ ~~~~~
src/scpi/scpi.c:667:2: warning: Value stored to 'ret' is never read
ret = SR_OK;
^ ~~~~~
src/dmm/vc870.c:410:2: warning: Value stored to 'info_local' is never read
info_local = (struct vc870_info *)info;
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
src/hardware/conrad-digi-35-cpu/api.c:130:2: warning: Value stored to 'ret' is never read
ret = SR_OK;
^ ~~~~~
src/hardware/fx2lafw/api.c:658:2: warning: Value stored to 'timeout' is never read
timeout = fx2lafw_get_timeout(devc);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~
src/hardware/gmc-mh-1x-2x/protocol.c:941:3: warning: Value stored to 'retc' is never read
retc = SR_ERR_ARG;
^ ~~~~~~~~~~
src/hardware/gmc-mh-1x-2x/api.c:168:2: warning: Value stored to 'model' is never read
model = METRAHIT_NONE;
^ ~~~~~~~~~~~~~
src/hardware/ikalogic-scanalogic2/api.c:325:2: warning: Value stored to 'ret' is never read
ret = SR_OK;
^ ~~~~~
src/hardware/openbench-logic-sniffer/api.c:185:3: warning: Value stored to 'devc' is never read
devc = sdi->priv;
^ ~~~~~~~~~
src/hardware/rigol-ds/api.c:813:3: warning: Value stored to 'devc' is never read
devc = sdi->priv;
^ ~~~~~~~~~
src/hardware/scpi-pps/api.c:405:2: warning: Value stored to 'ret' is never read
ret = SR_OK;
^ ~~~~~
src/hardware/yokogawa-dlm/api.c:239:2: warning: Value stored to 'ret' is never read
ret = SR_ERR_NA;
^ ~~~~~~~~~
Since Autoconf places some important feature flags only into the
configuration header, it is necessary to include it globally to
guarantee a consistent build.
All those options are currently applied only to power-supplies
but they could apply as well to electronic loads, except for the
fact that electronic loads channels are called inputs and not
outputs.
Also when you think about an SMU (or any kind of 4-quadrants
power-supply), their channels can both source and sink current,
so they can be considered as input as much as output.
Those SR_CONF_* are thus renamed so that they can be used in all
those situations.
For devices such as the HP 6632B the following invocation was failing due to
scpi_cmd(sdi, SCPI_CMD_SELECT_CHANNEL, ...) returning SR_OK_CONTINUE.
./sigrok-cli -d scpi-pps:conn=/dev/ttyUSB0:serialcomm=9600/8n1 --continuous
sr: session: sr_session_start: could not start an acquisition (not enough data to decide error status yet)
Failed to start session.
This patch only adds the needed infrastructure to control output
frequency in the same manner as output voltage or current limit. This
does require a new field in the channel_spec struct, for the sake of
symmetry.
If the number and specs of the device's channels are not static, i.e.
need to be probed, this facility is needed.
Initially this will be used for the Philips PM2800 series, where only
the model returned by *IDN? is needed. However this could also be used
to do actual discovery with vendor-specific SCPI commands.
At least the Rigol DP800 series trigger the beeper when changing
channels remotely. Which gets rather annoying when doing acquisition
on three channels as fast as you can.
Lars-Peter Clausen
Uwe Hermann
Martin Ling
Aurelien Jacobs
Daniel Elstner
Bert Vermeulen
Soeren Apel
Alexandru Gagniuc