Previously, only constants could be used to pass SPI instances to the
SPI driver. This change makes it possible to use SPI instances from
variables.
Signed-off-by: Benoît Thébaudeau <benoit@wsystem.com>
This includes support for preemption ready to be integrated into
exception handlers.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
Some arguments passed to the functions disabled with
LPM_CONF_ENABLE == 0 could trigger build warnings because they became
unused with this configuration option. Disable these functions by using
empty static inline functions instead of empty macros, so that the
function arguments are always considered by the compiler as used,
without having to #if-out code in many places.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
The log function writes directly to the screen. Combined with the usage of PFS this means that the POSIX layer of the C library isn't referenced anymore thus reducing the memory requirements.
This patch fixes the section alignment specification in the linker script for
the Intel Quark X1000 SoC so that the UEFI GenFw program generates correct EFI
binaries. See the added comment in quarkX1000.ld for details.
lpm_enter() must not enter PM1+ if the UART is transmitting. Otherwise,
the UART clock gets disabled, and its TX is broken.
The commit b8b54a033c had already
partially fixed this issue, but it could still occur while transmitting
stop bits because, contrary to UART_FR.BUSY, UART_FR.TXFE takes only the
data bits into account, not the stop bits.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
This patch fixes UART system call authorization initialization (when
protection domain support is enabled) to only initialize the system call
entrypoint and authorization data structures once, prior to per-port
setup. Previously, if two UARTs were configured, the setup procedure for
the second UART would erase the system call authorization for the
first (console) UART, resulting in a crash upon the next attempt to
perform console output.
If `NETSTACK_CONF_RADIO.set_value(RADIO_PARAM_CHANNEL, ...)` is called when radio is on, it will fail to apply the channel change, because it won't re-send `CMD_PROP_RADIO_DIV_SETUP` and `CMD_PROP_FS`. This commit fixes this condition, by making sure the correct commands are sent to the radio.
