[gpio, sw] Added functions to write all output and output_en pins

Signed-off-by: Kinza Qamar <kqzaman@lowrisc.org>

Author: KinzaQamar

sw/device/lib/hal/gpio.c

@@ -30,3 +30,13 @@ void gpio_set_oe_pin(gpio_t gpio, uint32_t pin, bool output)
     uint32_t mask = 1u << (pin & 0xFu);
     DEV_WRITE(gpio + reg, (mask << 16) | (output ? mask : 0u));
 }
+
+void gpio_write(gpio_t gpio, uint32_t output_reg_addr, uint32_t value)
+{
+    DEV_WRITE(gpio + output_reg_addr, value);
+}
+
+void gpio_set_all_oe(gpio_t gpio, uint32_t value)
+{
+    DEV_WRITE(gpio + GPIO_REG_DIRECT_OE, value);
+}

sw/device/lib/hal/gpio.h

@@ -25,5 +25,11 @@ bool gpio_read_pin(gpio_t gpio, uint32_t pin);
 // Set the value of one output pin
 void gpio_write_pin(gpio_t gpio, uint32_t pin, bool state);
 
+// Set the value of all output pins
+void gpio_write(gpio_t gpio, uint32_t output_reg_addr, uint32_t value);
+
 // Set the output enable state of one pin
 void gpio_set_oe_pin(gpio_t gpio, uint32_t pin, bool output);
+
+// Set the output enable state of all pins
+void gpio_set_all_oe(gpio_t gpio, uint32_t value);