1 files changed, 0 insertions, 155 deletions
diff --git a/sw/z80_test/usart.h b/sw/z80_test/usart.h
deleted file mode 100644
index b85ee3e..0000000
--- a/sw/z80_test/usart.h
+++ /dev/null
@@ -1,155 +0,0 @@
-#ifndef __USART_H__
-#define __USART_H__
-
-#include "types.h"
-#include "devices.h"
-
-#include "string.h"
-
-// baudrate clock divisors 
-// values from TL16C550C datasheet (table 9 for 1.8432 MHz crystal)
-#define USART_BAUDRATE_50       2304
-#define USART_BAUDRATE_75       1536
-#define USART_BAUDRATE_110      1047
-#define USART_BAUDRATE_134_5    857
-#define USART_BAUDRATE_150      768
-#define USART_BAUDRATE_300      384
-#define USART_BAUDRATE_600      192
-#define USART_BAUDRATE_1200     96
-#define USART_BAUDRATE_1800     64
-#define USART_BAUDRATE_2000     58
-#define USART_BAUDRATE_2400     48
-#define USART_BAUDRATE_3600     32
-#define USART_BAUDRATE_4800     24
-#define USART_BAUDRATE_7200     16
-#define USART_BAUDRATE_9600     12
-#define USART_BAUDRATE_19200    6
-#define USART_BAUDRATE_38400    3
-#define USART_BAUDRATE_56000    3
-
-// parity
-#define USART_PARITY_NONE       0
-#define USART_PARITY_EVEN       1
-#define USART_PARITY_ODD        2
-
-// stop bits
-#define USART_STOP_BITS_1       10
-#define USART_STOP_BITS_15      15
-#define USART_STOP_BITS_2       20
-
-// word lenght
-#define USART_WORD_LENGTH_5     0
-#define USART_WORD_LENGTH_6     1
-#define USART_WORD_LENGTH_7     2
-#define USART_WORD_LENGTH_8     3
-
-// autoflow
-#define USART_AUTOFLOW_ALL      3
-#define USART_AUTOFLOW_CTS      2
-#define USART_AUTOFLOW_OFF      0
-
-/* stuctures for usart registers */
-struct IER 
-{
-    volatile uint received_data_interrupt :1;
-    volatile uint transmitter_empty_interrupt :1;
-    volatile uint receiver_line_status_interrupt :1;
-    volatile uint modem_status_interrupt :1;
-    volatile uint reserved :4;
-};
-
-struct IIR
-{
-    volatile uint interrupt_pending :1;
-    volatile uint interrupt_id :3;
-    volatile uint reserved :2;
-    volatile uint fifos :2;
-};
-
-struct FCR
-{
-    volatile uint fifo_enable :1;
-    volatile uint receiver_fifo_rst :1;
-    volatile uint trasmitter_fifo_rst :1;
-    volatile uint dma_mode_select :1;
-    volatile uint reserved :1;
-    volatile uint receiver_trigger :2;
-};
-
-struct LCR
-{
-    volatile uint word_length :2;
-    volatile uint stop_bits :1;
-    volatile uint parity :1;
-    volatile uint even_parity :1;
-    volatile uint stick_parity :1;
-    volatile uint break_control :1;
-    volatile uint divisor_latch_access :1;
-};
-
-struct MCR
-{
-    volatile uint data_terminal_ready :1;
-    volatile uint request_to_send :1;
-    volatile uint out1;
-    volatile uint out2;
-    volatile uint loop;
-    volatile uint autoflow :1;
-    volatile uint reserved :2;
-};
-
-struct LSR 
-{
-    volatile uint data_ready :1;
-    volatile uint overrun_error :1;
-    volatile uint parity_error :1;
-    volatile uint framing_error :1;
-    volatile uint break_interrupt :1;
-    volatile uint transmitter_holder_empty :1;
-    volatile uint transmitter_empty :1;
-    volatile uint fifo_recv_error :1;
-};
-
-struct MSR
-{
-    volatile uint delta_cts :1;
-    volatile uint delta_data_set_ready :1;
-    volatile uint trailing_edge_ring_indicator :1;
-    volatile uint delta_data_carrier_detect :1;
-    volatile uint clear_to_send :1;
-    volatile uint data_set_ready :1;
-    volatile uint ring_indicator :1;
-    volatile uint data_carrier_detect :1;
-};
-
-/* this structure is only for internal usage */
-struct _usart_device
-{
-    register_t buffer;  // also used as LSB for divisor latch
-    struct IER IER;
-    struct IIR IIR;
-    struct FCR FCR;
-    struct LCR LCR;
-    struct MCR MCR;
-    struct LSR LSR;
-    struct MSR MSR;
-    register_t scratch;
-};
-
-
-// setup functions (wrappers)
-void usart_set_baudrate(uint16_t baudrate);
-void usart_set_parity(int mode);
-void usart_set_stop_bits(int count);
-void usart_set_word_length(int length);
-void usart_set_autoflow(int mode);
-
-inline void usart_init(uint16_t baudrate, int parity, int stop_bits); 
-
-void usart_transmit(uint8_t data);
-uint8_t usart_receive();
-
-int usart_write(uint8_t *data, size_t size);
-int usart_read(uint8_t *buffer, size_t count);
-
-#endif // __USART__H__