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pigweed/pigweed/pigweed/5bd9fb4e6128f2ec0be4cff77955fc9141a71c0c
commit
5bd9fb4e6128f2ec0be4cff77955fc9141a71c0c
[log]
author
Edward Shin <shined@google.com>
Mon Jan 27 14:41:27 2025 -0800
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Jan 27 14:41:27 2025 -0800
tree
0e1cd8f23820089c9a10490879df206858c21208
parent
7122c043ded2bc68062c8a68a0271294f080164a [diff]
pw_uart_mcuxpresso: Non-blocking UART driver

Non-blocking version of the DMA-based UART driver for Mcuxpresso
devices. Like the blocking driver, it is backed by a user-provided
ring buffer. However, this driver also performs DMA transfers directly
into the user's buffer in the case that the ring buffer is empty.

Tested for many hours against a Bluetooth chipset. All Read, Write, and
CancelRead codepaths were exercised. Other codepaths are not as
well-tested.

Bug: 372764597
Change-Id: I9d8ba0d2ac590a98a0e6d3036fa1b3ec1bc7fa80
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/252412
Commit-Queue: Edward Shin <shined@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Austin Foxley <afoxley@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
6 files changed
tree: 0e1cd8f23820089c9a10490879df206858c21208
  1. .allstar/
  2. .github/
  3. .vscode/
  4. build_overrides/
  5. docker/
  6. docs/
  7. kudzu/
  8. pw_alignment/
  9. pw_allocator/
  10. pw_analog/
  11. pw_android_toolchain/
  12. pw_arduino_build/
  13. pw_assert/
  14. pw_assert_basic/
  15. pw_assert_fuchsia/
  16. pw_assert_log/
  17. pw_assert_tokenized/
  18. pw_assert_trap/
  19. pw_assert_zephyr/
  20. pw_async/
  21. pw_async2/
  22. pw_async2_basic/
  23. pw_async2_epoll/
  24. pw_async_basic/
  25. pw_async_fuchsia/
  26. pw_atomic/
  27. pw_base64/
  28. pw_bloat/
  29. pw_blob_store/
  30. pw_bluetooth/
  31. pw_bluetooth_hci/
  32. pw_bluetooth_profiles/
  33. pw_bluetooth_proxy/
  34. pw_bluetooth_sapphire/
  35. pw_boot/
  36. pw_boot_cortex_m/
  37. pw_build/
  38. pw_build_android/
  39. pw_build_info/
  40. pw_build_mcuxpresso/
  41. pw_bytes/
  42. pw_channel/
  43. pw_checksum/
  44. pw_chre/
  45. pw_chrono/
  46. pw_chrono_embos/
  47. pw_chrono_freertos/
  48. pw_chrono_rp2040/
  49. pw_chrono_stl/
  50. pw_chrono_threadx/
  51. pw_chrono_zephyr/
  52. pw_cli/
  53. pw_cli_analytics/
  54. pw_clock_tree/
  55. pw_clock_tree_mcuxpresso/
  56. pw_compilation_testing/
  57. pw_config_loader/
  58. pw_console/
  59. pw_containers/
  60. pw_cpu_exception/
  61. pw_cpu_exception_cortex_m/
  62. pw_cpu_exception_risc_v/
  63. pw_crypto/
  64. pw_digital_io/
  65. pw_digital_io_linux/
  66. pw_digital_io_mcuxpresso/
  67. pw_digital_io_rp2040/
  68. pw_display/
  69. pw_dma_mcuxpresso/
  70. pw_docgen/
  71. pw_doctor/
  72. pw_elf/
  73. pw_emu/
  74. pw_env_setup/
  75. pw_env_setup_zephyr/
  76. pw_file/
  77. pw_format/
  78. pw_function/
  79. pw_fuzzer/
  80. pw_grpc/
  81. pw_hdlc/
  82. pw_hex_dump/
  83. pw_i2c/
  84. pw_i2c_linux/
  85. pw_i2c_mcuxpresso/
  86. pw_i2c_rp2040/
  87. pw_ide/
  88. pw_interrupt/
  89. pw_interrupt_cortex_a/
  90. pw_interrupt_cortex_m/
  91. pw_interrupt_xtensa/
  92. pw_interrupt_zephyr/
  93. pw_intrusive_ptr/
  94. pw_json/
  95. pw_kvs/
  96. pw_libc/
  97. pw_libcxx/
  98. pw_log/
  99. pw_log_android/
  100. pw_log_basic/
  101. pw_log_fuchsia/
  102. pw_log_null/
  103. pw_log_rpc/
  104. pw_log_string/
  105. pw_log_tokenized/
  106. pw_log_zephyr/
  107. pw_malloc/
  108. pw_malloc_freelist/
  109. pw_malloc_freertos/
  110. pw_metric/
  111. pw_minimal_cpp_stdlib/
  112. pw_module/
  113. pw_multibuf/
  114. pw_multisink/
  115. pw_numeric/
  116. pw_package/
  117. pw_perf_test/
  118. pw_persistent_ram/
  119. pw_polyfill/
  120. pw_preprocessor/
  121. pw_presubmit/
  122. pw_protobuf/
  123. pw_protobuf_compiler/
  124. pw_random/
  125. pw_random_fuchsia/
  126. pw_result/
  127. pw_ring_buffer/
  128. pw_router/
  129. pw_rpc/
  130. pw_rpc_transport/
  131. pw_rust/
  132. pw_sensor/
  133. pw_snapshot/
  134. pw_software_update/
  135. pw_span/
  136. pw_spi/
  137. pw_spi_linux/
  138. pw_spi_mcuxpresso/
  139. pw_spi_rp2040/
  140. pw_status/
  141. pw_stm32cube_build/
  142. pw_stream/
  143. pw_stream_shmem_mcuxpresso/
  144. pw_stream_uart_linux/
  145. pw_stream_uart_mcuxpresso/
  146. pw_string/
  147. pw_symbolizer/
  148. pw_sync/
  149. pw_sync_baremetal/
  150. pw_sync_embos/
  151. pw_sync_freertos/
  152. pw_sync_stl/
  153. pw_sync_threadx/
  154. pw_sync_zephyr/
  155. pw_sys_io/
  156. pw_sys_io_ambiq_sdk/
  157. pw_sys_io_arduino/
  158. pw_sys_io_baremetal_lm3s6965evb/
  159. pw_sys_io_baremetal_stm32f429/
  160. pw_sys_io_emcraft_sf2/
  161. pw_sys_io_mcuxpresso/
  162. pw_sys_io_rp2040/
  163. pw_sys_io_stdio/
  164. pw_sys_io_stm32cube/
  165. pw_sys_io_zephyr/
  166. pw_system/
  167. pw_target_runner/
  168. pw_thread/
  169. pw_thread_embos/
  170. pw_thread_freertos/
  171. pw_thread_stl/
  172. pw_thread_threadx/
  173. pw_thread_zephyr/
  174. pw_tls_client/
  175. pw_tls_client_boringssl/
  176. pw_tls_client_mbedtls/
  177. pw_tokenizer/
  178. pw_toolchain/
  179. pw_trace/
  180. pw_trace_tokenized/
  181. pw_transfer/
  182. pw_uart/
  183. pw_uart_mcuxpresso/
  184. pw_unit_test/
  185. pw_unit_test_zephyr/
  186. pw_varint/
  187. pw_watch/
  188. pw_web/
  189. pw_work_queue/
  190. seed/
  191. targets/
  192. third_party/
  193. ts/
  194. zephyr/
  195. .dockerignore ⇨ .gitignore
  196. activate.fish ⇨ bootstrap.fish
  197. activate.sh ⇨ bootstrap.sh
  198. .bazelignore
  199. .bazelrc
  200. .bazelversion
  201. .black.toml
  202. .clang-format
  203. .clang-tidy
  204. .eslintrc.cjs
  205. .git-blame-ignore-revs
  206. .gitattributes
  207. .gitignore
  208. .gn
  209. .mypy.ini
  210. .prettierignore
  211. .prettierrc.cjs
  212. .pw_ide.yaml
  213. .pylintrc
  214. .ruff.toml
  215. activate.bat
  216. Android.bp
  217. AUTHORS
  218. bootstrap.bat
  219. bootstrap.fish
  220. bootstrap.sh
  221. BUILD.bazel
  222. BUILD.gn
  223. BUILDCONFIG.gn
  224. CMakeLists.txt
  225. go.mod
  226. go.sum
  227. jest.config.ts
  228. Kconfig.zephyr
  229. LICENSE
  230. MODULE.bazel
  231. MODULE.bazel.lock
  232. modules.gni
  233. OWNERS
  234. package-lock.json
  235. package.json
  236. pigweed.json
  237. PIGWEED_MODULES
  238. pnpm-lock.yaml
  239. README.md
  240. REPO.bazel
  241. rollup-protos.config.js
  242. rollup.config.js
  243. tsconfig.json
  244. WORKSPACE
  245. WORKSPACE_OWNERS
README.md

Pigweed

Pigweed is an open source collection of embedded-targeted libraries–or as we like to call them, modules. These modules are building blocks and infrastructure that enable faster and more reliable development on small-footprint MMU-less 32-bit microcontrollers like the STMicroelectronics STM32L452 or the Nordic nRF52832.

For more information please see our website: https://pigweed.dev/.

Links