diff options
Diffstat (limited to 'common/keyboard_scan.c')
| -rw-r--r-- | common/keyboard_scan.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/common/keyboard_scan.c b/common/keyboard_scan.c index 7a015c86b3..cc3379ef16 100644 --- a/common/keyboard_scan.c +++ b/common/keyboard_scan.c @@ -9,6 +9,7 @@ #include "clock.h" #include "common.h" #include "console.h" +#include "ec_commands.h" #include "hooks.h" #include "host_command.h" #include "keyboard_config.h" @@ -880,6 +881,26 @@ DECLARE_HOST_COMMAND(EC_CMD_KEYBOARD_FACTORY_TEST, EC_VER_MASK(0)); #endif +#ifdef CONFIG_KEYBOARD_LANGUAGE_ID +int keyboard_get_keyboard_id(void) +{ + int c; + uint32_t id = 0; + + BUILD_ASSERT(sizeof(id) >= KEYBOARD_IDS); + + for (c = 0; c < KEYBOARD_IDS; c++) { + /* Check ID ghosting if more than one bit in any KSIs was set */ + if (keyboard_id[c] & (keyboard_id[c] - 1)) + /* ID ghosting is found */ + return KEYBOARD_ID_UNREADABLE; + else + id |= keyboard_id[c] << (c * 8); + } + return id; +} +#endif + /*****************************************************************************/ /* Console commands */ #ifdef CONFIG_CMD_KEYBOARD |