msp430fr5969 stdin: increase buffer size; move initialization to stdin

include/arch/msp430fr5969lp/driver/dmx.h → include/arch/msp430fr5969lp/driver/dmx1.h

@@ -4,17 +4,18 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-class DMX {
+class DMX1 {
 	private:
-		DMX(const DMX &copy);
+		DMX1(const DMX1 &copy);
 
 	public:
-		unsigned char frames[16];
+		static unsigned char const num_frames = 32;
+		unsigned char frames[num_frames];
 
-		DMX() {}
+		DMX1() {}
 
 		void setup();
 		void write();
 };
 
-extern DMX dmx;
+extern DMX1 dmx1;

include/arch/msp430fr5969lp/driver/stdin.h

@@ -9,7 +9,7 @@
 class StandardInput {
 	private:
 		StandardInput(const StandardInput &copy);
-		static unsigned char const bufsize = 16;
+		static unsigned char const bufsize = 32;
 		char buffer[bufsize];
 		volatile unsigned char write_pos;
 		unsigned char read_pos;

src/arch/msp430fr5969lp/Kconfig

@@ -9,20 +9,20 @@ config arch_msp430fr5969lp_driver_counter
 bool "Cycle Counter"
 select meta_driver_counter
 
-config arch_msp430fr5969lp_driver_dmx
-bool "DMX"
+config arch_msp430fr5969lp_driver_dmx1
+bool "DMX Output on eUSCI_A1 / P2.5"
+depends on !meta_driver_stdout1
 select meta_driver_dmx
+select meta_driver_dmx1
 
 config arch_msp430fr5969lp_driver_i2c
-bool "I2C on eUSCI_B0"
+bool "I²C on eUSCI_B0 / P1.[67]"
+help
+  SDA: P1.6
+  SCL: P1.7
 select meta_driver_hardware_i2c
 select meta_driver_i2c
 
-## broken
-#config arch_msp430fr5969lp_driver_spi_a1
-#bool "SPI on eUSCI_A1"
-#select meta_driver_spi
-
 config arch_msp430fr5969lp_driver_spi
 bool "SPI on eUSCI_B0"
 select meta_driver_spi

src/arch/msp430fr5969lp/driver/dmx.cc → src/arch/msp430fr5969lp/driver/dmx1.cc

@@ -5,7 +5,7 @@
  */
 #include <msp430.h>
 #include "arch.h"
-#include "driver/dmx.h"
+#include "driver/dmx1.h"
 #include "driver/gpio.h"
 
 /*
@@ -16,7 +16,7 @@
  * Set UCBRS0 according to table 21-4
  */
 
-void DMX::setup()
+void DMX1::setup()
 {
 	UCA1CTLW0 |= UCSWRST;
 #if F_CPU == 16000000UL
@@ -38,7 +38,7 @@ void DMX::setup()
 	UCA1CTLW0 &= ~UCSWRST;
 }
 
-void DMX::write()
+void DMX1::write()
 {
 	// Disable UART for reset and mark signals
 	UCA1CTLW0 |= UCSWRST;
@@ -49,18 +49,14 @@ void DMX::write()
 	arch.delay_us(8); // mark
 	P2SEL1 |= BIT5;
 	UCA1CTLW0 &= ~UCSWRST; // causes line to go high
-	for (unsigned char i = 0; i < 16; i++) {
+	for (unsigned short i = 0; i < num_frames; i++) {
 		while (!(UCA1IFG & UCTXIFG));
 		UCA1TXBUF = frames[i];
 	}
-	for (unsigned char i = 0; i < 241; i++) {
-		while (!(UCA1IFG & UCTXIFG));
-		UCA1TXBUF = 0;
-	}
-	for (unsigned char i = 0; i < 255; i++) {
+	for (unsigned short i = 0; i < 258 - num_frames; i++) {
 		while (!(UCA1IFG & UCTXIFG));
 		UCA1TXBUF = 0;
 	}
 }
 
-DMX dmx;
+DMX1 dmx1;

src/arch/msp430fr5969lp/driver/stdin.cc

@@ -8,6 +8,10 @@
 
 void StandardInput::setup()
 {
+	UCA0CTLW0 |= UCSWRST;
+	P2SEL0 &= ~BIT1;
+	P2SEL1 |= BIT1;
+	UCA0CTLW0 &= ~UCSWRST;
 	UCA0IE |= UCRXIE;
 }