diff options
| author | Anton Staaf <robotboy@chromium.org> | 2015-07-28 15:11:28 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-08-24 19:08:30 +0000 |
| commit | 16f63703c9ccc46ec48abcc586a595456e99fc9a (patch) | |
| tree | 17dc3fa9b72217675e64507facddb7395e91390c /chip/stm32/usart.h | |
| parent | f7fa6248bf170d2fffbf3fb067b6ed40f0a4d55f (diff) | |
| download | chrome-ec-16f63703c9ccc46ec48abcc586a595456e99fc9a.tar.gz | |
USART: Add usart_info command
This optional console command is enabled with CONFIG_USART_INFO_COMMAND.
It will display and clear dropped character and overrun counts for all
configured USARTs.
Signed-off-by: Anton Staaf <robotboy@chromium.org>
BRANCH=None
BUG=None
TEST=make buildall -j
Change-Id: Icf6061aaab2cda71e9d317455c897828b9daf844
Reviewed-on: https://chromium-review.googlesource.com/292770
Tested-by: Anton Staaf <robotboy@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Anton Staaf <robotboy@chromium.org>
Trybot-Ready: Anton Staaf <robotboy@chromium.org>
Diffstat (limited to 'chip/stm32/usart.h')
| -rw-r--r-- | chip/stm32/usart.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/chip/stm32/usart.h b/chip/stm32/usart.h index a274aa8dce..8db3558b50 100644 --- a/chip/stm32/usart.h +++ b/chip/stm32/usart.h @@ -183,4 +183,28 @@ void usart_set_baud_f(struct usart_config const *config, int frequency_hz); */ void usart_clear_tc(struct usart_config const *config); +/* + * Each family implementation provides the usart_get_configs function to access + * a read only list of the configs that are currently enabled. + */ +struct usart_configs { + /* + * The family's usart_config array, entries in the array for disabled + * configs will be NULL, enabled configs will point to the usart_config + * that was enabled. And the following will be true: + * + * configs[i]->hw->index == i; + */ + struct usart_config const * const *configs; + + /* + * The total possible number of configs that this family supports. + * This will be the same as the number of usart_hw structs that the + * family provides in its family specific usart header. + */ + size_t count; +}; + +struct usart_configs usart_get_configs(void); + #endif /* __CROS_EC_USART_H */ |