diff options
Diffstat (limited to 'chip/g/usb_console.c')
| -rw-r--r-- | chip/g/usb_console.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/chip/g/usb_console.c b/chip/g/usb_console.c index f77c34a638..3904c5968a 100644 --- a/chip/g/usb_console.c +++ b/chip/g/usb_console.c @@ -6,6 +6,7 @@ #include "common.h" #include "config.h" #include "console.h" +#include "crc.h" #include "link_defs.h" #include "printf.h" #include "queue.h" @@ -278,6 +279,21 @@ static int usb_wait_console(void) return EC_SUCCESS; } } + +#ifdef CONFIG_USB_CONSOLE_CRC +static uint32_t usb_tx_crc_ctx; + +void usb_console_crc_init(void) +{ + crc32_ctx_init(&usb_tx_crc_ctx); +} + +uint32_t usb_console_crc(void) +{ + return crc32_ctx_result(&usb_tx_crc_ctx); +} +#endif + static int __tx_char(void *context, int c) { struct queue *state = @@ -286,7 +302,14 @@ static int __tx_char(void *context, int c) if (c == '\n' && __tx_char(state, '\r')) return 1; +#ifdef CONFIG_USB_CONSOLE_CRC + crc32_ctx_hash8(&usb_tx_crc_ctx, c); + + while (QUEUE_ADD_UNITS(state, &c, 1) != 1) + usleep(500); +#else QUEUE_ADD_UNITS(state, &c, 1); +#endif return 0; } |