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| author | Bhanu Prakash Maiya <bhanumaiya@google.com> | 2020-04-30 15:26:52 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-06-05 10:06:44 +0000 |
| commit | 86aacabcd3c2e496a43d291d9dee61e29edcc2d0 (patch) | |
| tree | 5a87bbbee684ce95de718f654b0086abfa87daac /chip/stm32/usart_host_command.h | |
| parent | bc96d7077db615d849d398115af76b7b85f63e01 (diff) | |
| download | chrome-ec-86aacabcd3c2e496a43d291d9dee61e29edcc2d0.tar.gz | |
Bloonchipper: USART based transport layer for host command
1. USART host command layer in chip/stm32
2. Fix usart implementation in stm32
BUG=b:147849609
BRANCH=none
TEST=1. make BOARD=bloonchipper -j
2. usart request and response works on dragonclaw
Change-Id: Idd89d3e490f23aa528ecaf6510c13d16b405de13
Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2190531
Tested-by: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Reviewed-by: Craig Hesling <hesling@chromium.org>
Commit-Queue: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
Auto-Submit: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
Diffstat (limited to 'chip/stm32/usart_host_command.h')
| -rw-r--r-- | chip/stm32/usart_host_command.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/chip/stm32/usart_host_command.h b/chip/stm32/usart_host_command.h new file mode 100644 index 0000000000..ee41d8a59b --- /dev/null +++ b/chip/stm32/usart_host_command.h @@ -0,0 +1,38 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef __CROS_EC_USART_HOST_COMMAND_H +#define __CROS_EC_USART_HOST_COMMAND_H + +#include <stdarg.h> /* For va_list */ +#include "common.h" +#include "gpio.h" +#include "host_command.h" +#include "usart.h" + +/* + * Add data to host command layer buffer. + */ +size_t usart_host_command_rx_append_data(struct usart_config const *config, + const uint8_t *src, size_t count); + +/* + * Remove data from the host command layer buffer. + */ +size_t usart_host_command_tx_remove_data(struct usart_config const *config, + uint8_t *dest); + +/* + * Get USART protocol information. This function is called in runtime if + * board's host command transport is USART. + */ +enum ec_status usart_get_protocol_info(struct host_cmd_handler_args *args); + +/* + * Initialize USART host command layer. + */ +void usart_host_command_init(void); + +#endif /* __CROS_EC_USART_HOST_COMMAND_H */ |