laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/30763 )
Change subject: WIP: Add software UART implementation ......................................................................
WIP: Add software UART implementation
Change-Id: I2ca95963fd5852ddb89bdd35b86b31489127fe84 --- M include/Makefile.am A include/osmocom/core/soft_uart.h M src/Makefile.am 3 files changed, 35 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/63/30763/1
diff --git a/include/Makefile.am b/include/Makefile.am index f857304..f2edbb9 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -51,6 +51,7 @@ osmocom/core/sercomm.h \ osmocom/core/signal.h \ osmocom/core/socket.h \ + osmocom/core/soft_uart.h \ osmocom/core/statistics.h \ osmocom/core/strrb.h \ osmocom/core/talloc.h \ diff --git a/include/osmocom/core/soft_uart.h b/include/osmocom/core/soft_uart.h new file mode 100644 index 0000000..aabbec7 --- /dev/null +++ b/include/osmocom/core/soft_uart.h @@ -0,0 +1,33 @@ +#pragma once +#include <stdint.h> +#include <osmocom/core/bits.h> +#include <osmocom/core/msgb.h> + +enum osmo_uart_parity_mode { + OSMO_SUART_PARITY_NONE, + OSMO_SUART_PAIRTY_EVEN, + OSMO_SUART_PAIRTY_ODD, +}; + +struct osmo_soft_uart_cfg { + uint8_t num_data_bits; + uint8_t num_stop_bits; + enum osmo_uart_parity_mode parity_mode; +}; + +struct osmo_soft_uart { + struct osmo_soft_uart_cfg cfg; + struct { + uint8_t bit_count; + uint8_t shift_reg; + struct msgb *msg; + ubit_t parity_bit; + } rx; + struct { + uint8_t bit_count; + uint8_t shift_reg; + struct msgb *msg; + } tx; +}; + +int osmo_soft_uart_rx_ubits(struct osmo_soft_uart *sua, const ubit_t *ubits, size_t n_ubits); diff --git a/src/Makefile.am b/src/Makefile.am index 2c73af6..756724f 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -34,6 +34,7 @@ it_q.c \ probes.d \ base64.c \ + soft_uart.c \ $(NULL)
if HAVE_SSSE3
-
laforge