MCP794XX supports digital trimming that periodically adds or subtracts
clock cycles, resulting in small adjustments in the internal timing.
This way inaccuracies of clock source can be compensated.
This commit adds option to set the trimming register for MCP794XX.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
The definition of nxsched_process_cpuload_ticks uses clock_t, which is
portable across uint32_t and uint64_t timers, and works if CONFIG_SYSTEM_TIME64 is
defined.
only when first time change state can hold WFI for enough time thresh,
allow second time goto target state,
suitable for the case when wakeup from sleep too slow, etc.
Signed-off-by: buxiasen <buxiasen@xiaomi.com>
Some drivers may set too big quota by accident and consume all of our
buffers, so we add a check when registering devices.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
we removed "select SCHED_RESUMESCHEDULER",
As SCHED_RESUMESCHEDULER is not a necessary feature in SMP,
turning it on by default may affect performance.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
This revises vm_map_region() by accepting unaligned paddr, which is
aligned-down before mapping and in-page offset is then added to vaddr
before returning. It also moves vm_map_region() and vm_unmap_region()
to vm_region.c.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
Also extend the "struct phy_desc_s" to support for 1GB PHY's, the speed
detection always needs more than one bit.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
This patch adds definitions to support user space device mappings
that allows devices like frame buffer to be accessible from user
space in kernel mode.
The are mainly two changes:
- in `mm/`:
added vm_map_region(), vm_unmap_region() for drivers to do
device mapping easily.
- in `arch/`:
extended ARCH_SHM_NPAGES as user-space mapping region size.
decoupled ARCH_SHM_MAXREGIONS from region size calculations and
limit its usage only for SysV shm purposes.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
Support the network interface card driver to receive zero copies of packets and send and receive giant frame packets, allowing drivers to initialize the DMA buffer to the iob structure, and we can apply for IOB with large memory
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit adds support for reallocarray function. The functionality
is the same as for standard realloc, but the function also checks for
multiplication overflow and fails safely in case it occurs.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
In order to ensure the detached thread obtain the correct return
value from pthread_join()/pthread_cancel(), the detached thread
will create joininfo to save the detached status after thread
destroyed. If there are too many of detached threads in the
process group, the joininfo will consume too much memory.
This is not friendly to embedded MCU devices.
This commit keep the semantics as #11898 was introduced,
will no longer save joininfo for detached threads to avoid wasting memory.
Signed-off-by: chao an <anchao@lixiang.com>
iC-JX expander has NINT (not interrupt) pin that goes to logical zero
if interrupt occurs. This commit adds support for iC-JX options settings
that allows to enable the interrupt for defined input pins.
The interrupt is handled in HP worker thread to avoid waiting for SPI
transfers in interrupt context. Board has to configure interrupt event
for GPIO pin connected to NINT.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This patch uses "struct mm_map_entry_s" instead of the non-existing
"struct mm_map_entry" with minor revision on comments.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
fix build break if enable CONFIG_DISABLE_MQUEUE:
In file included from sched/mqueue/mqueue.h:38,
from group/group_leave.c:45:
include/nuttx/mqueue.h:124:26: error: ‘CONFIG_FS_MQUEUE_NPOLLWAITERS’ undeclared here (not in a function); did you mean ‘CONFIG_SERIAL_NPOLLWAITERS’?
124 | FAR struct pollfd *fds[CONFIG_FS_MQUEUE_NPOLLWAITERS];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| CONFIG_SERIAL_NPOLLWAITERS
Signed-off-by: chao an <anchao@lixiang.com>
which is useful in the m2m usage scenario, by replacing the first
argument of callback from "struct v4l2_ops_s *" to "struct file *"
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
