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Implement invert for HardwareSerial #6816

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Merged
merged 6 commits into from
Nov 20, 2019
+19 −9
Merged

Implement invert for HardwareSerial #6816

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efa35a8
Simple i/f to turn on inverted logic on UART0.
dok-net Nov 20, 2019
3c754c2
Refactor invert from HardwareSerial to uart
dok-net Nov 20, 2019
dccc005
Final refactoring of invert bits into config bitmap.
dok-net Nov 20, 2019
7be11ce
Overload instead of default arg for subclassing.
dok-net Nov 20, 2019
ae75059
Prevent unwanted effects if setting invert on other than UART0 - only…
dok-net Nov 20, 2019
30b22b3
Merge branch 'master' into hwserial_invert
earlephilhower Nov 20, 2019
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4 changes: 2 additions & 2 deletions cores/esp8266/HardwareSerial.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -36,10 +36,10 @@ HardwareSerial::HardwareSerial(int uart_nr)
: _uart_nr(uart_nr), _rx_size(256)
{}

void HardwareSerial::begin(unsigned long baud, SerialConfig config, SerialMode mode, uint8_t tx_pin)
void HardwareSerial::begin(unsigned long baud, SerialConfig config, SerialMode mode, uint8_t tx_pin, bool invert)
{
end();
_uart = uart_init(_uart_nr, baud, (int) config, (int) mode, tx_pin, _rx_size);
_uart = uart_init(_uart_nr, baud, (int) config, (int) mode, tx_pin, _rx_size, invert);
#if defined(DEBUG_ESP_PORT) && !defined(NDEBUG)
if (static_cast<void*>(this) == static_cast<void*>(&DEBUG_ESP_PORT))
{
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2 changes: 1 addition & 1 deletion cores/esp8266/HardwareSerial.h
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Expand Up @@ -84,7 +84,7 @@ class HardwareSerial: public Stream
begin(baud, config, mode, 1);
}

void begin(unsigned long baud, SerialConfig config, SerialMode mode, uint8_t tx_pin);
void begin(unsigned long baud, SerialConfig config, SerialMode mode, uint8_t tx_pin, bool invert=false);

void end();

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6 changes: 5 additions & 1 deletion cores/esp8266/uart.cpp
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Expand Up @@ -577,7 +577,7 @@ uart_get_baudrate(uart_t* uart)
}

uart_t*
uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size)
uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size, bool invert)
{
uart_t* uart = (uart_t*) malloc(sizeof(uart_t));
if(uart == NULL)
Expand Down Expand Up @@ -657,6 +657,10 @@ uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx
}

uart_set_baudrate(uart, baudrate);
if(invert)
{
config |= BIT(UCDTRI) | BIT(UCRTSI) | BIT(UCTXI) | BIT(UCDSRI) | BIT(UCCTSI) | BIT(UCRXI);
}
USC0(uart->uart_nr) = config;

if(!gdbstub_has_uart_isr_control() || uart->uart_nr != UART0) {
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2 changes: 1 addition & 1 deletion cores/esp8266/uart.h
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Expand Up @@ -113,7 +113,7 @@ extern "C" {
struct uart_;
typedef struct uart_ uart_t;

uart_t* uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size);
uart_t* uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size, bool invert);
void uart_uninit(uart_t* uart);

void uart_swap(uart_t* uart, int tx_pin);
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3 changes: 2 additions & 1 deletion tests/host/common/MockUART.cpp
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Expand Up @@ -323,10 +323,11 @@ uart_get_bit_length(const int uart_nr)
}

uart_t*
uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size)
uart_init(int uart_nr, int baudrate, int config, int mode, int tx_pin, size_t rx_size, bool invert)
{
(void) config;
(void) tx_pin;
(void) invert;
uart_t* uart = (uart_t*) malloc(sizeof(uart_t));
if(uart == NULL)
return NULL;
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