diff options
| author | Joel Challis <git@zvecr.com> | 2020-05-21 18:00:21 +0100 |
|---|---|---|
| committer | Florian Didron <fdidron@users.noreply.github.com> | 2020-06-12 17:00:27 +0900 |
| commit | 2cbf1f08fde8c147510cf3253c66465b8f94d35f (patch) | |
| tree | 2389464e59fd170c806bd9a238dd7c5a77c8684b /drivers/chibios/serial.h | |
| parent | ce68912cf2550bc1d1ba5a80d151bf98ea6c9be1 (diff) | |
ARM split - Add uart half duplex transport support (#7987)
* ARM split - Add uart half duplex transport support
* Fix for f103
* initial full duplex pass
* partially remove full duplex
* Correct speeds within driver docs
Co-authored-by: Nick Brassel <nick@tzarc.org>
Co-authored-by: Nick Brassel <nick@tzarc.org>
format code according to conventions [skip ci]
Diffstat (limited to 'drivers/chibios/serial.h')
| -rw-r--r-- | drivers/chibios/serial.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/chibios/serial.h b/drivers/chibios/serial.h new file mode 100644 index 0000000000..0c1857d52e --- /dev/null +++ b/drivers/chibios/serial.h @@ -0,0 +1,62 @@ +#pragma once + +#include <stdbool.h> + +// ///////////////////////////////////////////////////////////////// +// Need Soft Serial defines in config.h +// ///////////////////////////////////////////////////////////////// +// ex. +// #define SOFT_SERIAL_PIN ?? // ?? = D0,D1,D2,D3,E6 +// OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5 +// // 1: about 137kbps (default) +// // 2: about 75kbps +// // 3: about 39kbps +// // 4: about 26kbps +// // 5: about 20kbps +// +// //// USE simple API (using signle-type transaction function) +// /* nothing */ +// //// USE flexible API (using multi-type transaction function) +// #define SERIAL_USE_MULTI_TRANSACTION +// +// ///////////////////////////////////////////////////////////////// + +// Soft Serial Transaction Descriptor +typedef struct _SSTD_t { + uint8_t *status; + uint8_t initiator2target_buffer_size; + uint8_t *initiator2target_buffer; + uint8_t target2initiator_buffer_size; + uint8_t *target2initiator_buffer; +} SSTD_t; +#define TID_LIMIT(table) (sizeof(table) / sizeof(SSTD_t)) + +// initiator is transaction start side +void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size); +// target is interrupt accept side +void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size); + +// initiator result +#define TRANSACTION_END 0 +#define TRANSACTION_NO_RESPONSE 0x1 +#define TRANSACTION_DATA_ERROR 0x2 +#define TRANSACTION_TYPE_ERROR 0x4 +#ifndef SERIAL_USE_MULTI_TRANSACTION +int soft_serial_transaction(void); +#else +int soft_serial_transaction(int sstd_index); +#endif + +// target status +// *SSTD_t.status has +// initiator: +// TRANSACTION_END +// or TRANSACTION_NO_RESPONSE +// or TRANSACTION_DATA_ERROR +// target: +// TRANSACTION_DATA_ERROR +// or TRANSACTION_ACCEPTED +#define TRANSACTION_ACCEPTED 0x8 +#ifdef SERIAL_USE_MULTI_TRANSACTION +int soft_serial_get_and_clean_status(int sstd_index); +#endif |