nuttx/include
Andrey Sobol 9bf825fd4f stm32h7/dac: add DMA stream mode with ioctl-driven double-buffering
Add DMA support for DAC output with configurable double-buffering
via ioctl interface:

- ANIOC_DAC_DMABUFF_INIT: Copy full buffer into DMA buffer (memcpy)
- ANIOC_DAC_DMA_START: Start DMA with optional half-transfer interrupts
- ANIOC_DAC_DMA_STOP: Stop DMA and timer
- ANIOC_DAC_DMA_GET_EVENT: Wait for half-transfer complete event
- ANIOC_DAC_DMA_WRITE_HBUF: Write half-buffer into DMA buffer
- ANIOC_DAC_INFO: Query DAC capabilities (resolution, DMA, buffer size)

Stream mode: when halfint=1, both HTIF and TCIF generate events
via a ring buffer and semaphore. User writes the completed half
while DMA fills the other half. TCIF indicates h=1, HTIF h=0.

DMA priority is configurable per-channel via Kconfig choice
(Low/Medium/High/VeryHigh), defaulting to Medium.

Signed-off-by: Andrey Sobol <andrey.sobol.nn@gmail.com>
2026-07-26 14:26:47 -03:00
..
android
arpa
crypto crypto: add CRYPTO_AES_CTR_SSH variant (128-bit big-endian counter) 2026-07-16 15:42:10 +08:00
cxx include/cxx/ctime: Add localtime to std namespace. 2026-06-09 11:33:40 -03:00
net forward: Add IFF_NOSRC_FORWARD and IFF_NODST_FORWARD flags. 2026-01-31 02:37:58 +08:00
netinet netinet/in.h: Rename imr_interface to imr_address in struct ip_mreqn. 2026-01-16 09:42:12 +08:00
netpacket net/packet: add PACKET_<ADD|DROP>_MEMBERSHIP support 2025-12-25 10:01:43 +08:00
nuttx stm32h7/dac: add DMA stream mode with ioctl-driven double-buffering 2026-07-26 14:26:47 -03:00
ssp
sys libs/libc: Fix divide-by-zero in stat() with large filesystem block sizes 2026-07-16 23:37:22 +08:00
.gitignore ci: add stdbit.h test 2026-06-29 14:44:17 +02:00
aio.h
alloca.h
assert.h
byteswap.h
ctype.h
debug.h style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
dirent.h fs/dirent: add d_ino member to struct dirent 2026-06-26 10:45:33 -04:00
dlfcn.h
dsp.h libs/libdsp: Add Matrix operations 2026-07-11 14:55:59 -03:00
dspb16.h
elf.h arch:use ARCH_64BIT to mark arch is support 64bit 2025-12-18 22:05:12 +08:00
elf32.h
elf64.h
endian.h
err.h
errno.h include/errno.h: skip set_errno in interrupt context 2026-05-03 17:23:40 -03:00
execinfo.h
fcntl.h !include/fcntl.h: align open flags with Linux values 2026-06-30 13:43:44 +08:00
fixedmath.h !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
fnmatch.h
ftw.h
gcov.h gcov: Refactoring the implementation framework of gcov 2025-07-03 00:17:58 +08:00
getopt.h
glob.h
grp.h libc/grp: add getgrouplist() 2026-06-23 23:09:22 +08:00
hex2bin.h
iconv.h
ifaddrs.h
imx_container.h
inttypes.h !sched/clock: remove CONFIG_SYSTEM_TIME64 and always use 64-bit time 2026-05-19 16:21:28 +08:00
iso646.h
langinfo.h
libgen.h
libintl.h
limits.h !sys/types.h: change time_t and clock_t to int64_t to align with other OSes 2026-05-19 16:21:28 +08:00
locale.h style/FAR: remove FAR qualifier 2025-11-10 10:56:29 +01:00
lzf.h lzf: prevent lzf header struct optimization 2026-02-13 11:58:50 +01:00
malloc.h
mqueue.h
netdb.h
nl_types.h
nxflat.h
obstack.h
poll.h
pthread.h include/pthread : initialize wait_count in PTHREAD_COND_INITIALIZER 2026-06-16 19:12:30 -03:00
pty.h
pwd.h
regex.h
resolv.h
sched.h
search.h LICENSE: update NuttX-PublicDomain SPDX identifier 2025-12-26 19:46:12 +08:00
semaphore.h sched/semaphore: add support to customize semaphore max allowed value 2025-09-04 09:48:34 +08:00
shadow.h
signal.h sched/timer: Fix MISRA Rule 10.4 2026-01-22 22:14:00 +08:00
spawn.h sched/spawn: Fix MISRA C 2012 Rule 10.4 violations 2026-02-02 20:39:36 +08:00
stdbool.h
stddef.h !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
stdint.h arm64_head.S: fix the asm code build error 2026-01-13 21:20:52 +08:00
stdio.h stdio.h: Update TMP_MAX definition to match Linux. 2026-01-14 17:28:30 -08:00
stdlib.h !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
stdnoreturn.h
string.h include/string.h: mark memset and memcpy as used_code 2026-02-12 13:19:06 -05:00
strings.h !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
syscall.h
syslog.h
termios.h include: modify for support socat, so need add some macro same as linux 2025-12-10 23:44:14 +08:00
threads.h
time.h
ulimit.h ulimit: add ulimit implementation 2026-01-16 10:03:53 +08:00
unistd.h libc/unistd: add getgroups() 2026-06-24 14:55:11 -03:00
utime.h
uuid.h
wait.h
wchar.h
wctype.h