Move test units to z80/tests, and drivers are now statically linked

Makefiles for the test units were getting messier, so now drivers
(that need to be tested) are statically compiled in their own
folder under z80/drivers.

The kernel makefile and is now broken since everything has been moved.

1 files changed, 38 insertions, 0 deletions

diff --git a/sw/z80/drivers/include/pio.h b/sw/z80/drivers/include/pio.h
new file mode 100644
index 0000000..e91029c
--- /dev/null
+++ b/sw/z80/drivers/include/pio.h
@@ -0,0 +1,38 @@
+#ifndef __PIO_H__
+#define __PIO_H__
+
+#include "addresses.h"
+#include <stdint.h>
+
+#define PIO_A       0
+#define PIO_B       1
+
+#define PIO_MODE_BYTE_IN   0
+#define PIO_MODE_BYTE_OUT  1
+#define PIO_MODE_BYTE_BI   2
+#define PIO_MODE_BIT_IO    3
+
+#define PIO_INT_ACTIVE_HIGH     (1<<5)
+#define PIO_INT_AND_MODE        (1<<6)
+#define PIO_INT_ENABLE          (1<<7)
+
+
+inline void _pio_data(int port, uint8_t data);
+inline void _pio_control(int port, uint8_t cmd);
+
+/* the last argument is needed only for IO mode */
+void pio_set_mode(int port, int mode, uint8_t io);
+
+void pio_set_interrupts(int port, int control);
+void pio_set_interrupts_mask(int port, int control, uint8_t mask);
+
+// uint8_t pio_read_data(int port);
+uint8_t pio_read(int port);
+void pio_write(int port, uint8_t data);
+
+inline int pio_read_pin(int port, uint8_t pin);
+inline void pio_write_pin(int port, uint8_t pin);
+
+// TODO: implement mode (in/out/both) and interrupt vector
+
+#endif /* __PIO_H__ */