1 files changed, 0 insertions, 110 deletions
diff --git a/devices/uart_16550.cpp b/devices/uart_16550.cpp
deleted file mode 100644
index 9620981..0000000
--- a/devices/uart_16550.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-#include "uart.hpp"
-#include <sys/io.hpp>
-
-template <UART port> struct Uart16550 : public kIoDevice, private Port<unsigned short, port> {
-  using Base = Port<unsigned short, port>;
-  using Ports = UART;
-  using PortOffset = UARTPortOffset;
-
-  // Line Control
-  // | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
-  // |dla|   | parity    | s | data  |
-  enum LineControl : unsigned char {
-    d5bit = 0x00, // 0000 0000  data bits
-    d6bit = 0x01, // 0000 0001
-    d7bit = 0x02, // 0000 0010
-    d8bit = 0x03, // 0000 0011
-    none = 0x00,  // 0000 0000  parity bits
-    odd = 0x08,   // 0000 1000
-    even = 0x18,  // 0001 1000
-    mark = 0x28,  // 0010 1000
-    space = 0x38, // 0011 1000
-    s1bit = 0x00, // 0000 0000  stop bits
-    s2bit = 0x04, // 0000 0100  1.5 for 5bit data; 2 otherwise
-    dlab = 0x80   // 1000 0000  divisor latch access bit
-  };
-
-  // Line Status Register
-  enum LineStatus : unsigned char {
-    DR = (1 << 0),   // data ready: see if there is data to read
-    OE = (1 << 1),   // overrun error: see if there has been data lost
-    PE = (1 << 2),   // parity error: see if there was error in transmission
-    FE = (1 << 3),   // framing error: see if a stop bit was missing
-    BI = (1 << 4),   // break indicator: see if there is a break in data input
-    THRE = (1 << 5), // transmitter holding register empty: see if transmission buffer is empty
-    TEMT = (1 << 6), // transmitter empty: see if transmitter is not doing anything
-    ERRO = (1 << 7), // impending error: see if there is an error with a word in the input buffer
-  };
-
-  [[nodiscard]] static bool
-  test()
-  {
-    Base::out(0x00, 1); // Disable all interrupts
-    Base::out(0x80, 3); // Enable DLAB (set baud rate divisor)
-    Base::out(0x03, 0); // Set divisor to 3 (lo byte) 38400 baud
-    Base::out(0x00, 1); //                  (hi byte)
-    Base::out(0x03, 3); // 8 bits, no parity, one stop bit
-    Base::out(0xc7, 2); // Enable FIFO, clear them, with 14-byte threshold
-    Base::out(0x0b, 4); // IRQs enabled, RTS/DSR set
-    Base::out(0x1e, 4); // Set in loopback mode, test the serial chip
-    Base::out(0xae, 0); // Test serial chip (send byte 0xAE and check if serial
-                        // returns same byte)
-
-    // Check if serial is faulty (i.e: not same byte as sent)
-    if (Base::in() != 0xae) { return false; }
-
-    // If serial is not faulty set it in normal operation mode
-    // (not-loopback with IRQs enabled and OUT#1 and OUT#2 bits enabled)
-    Base::out(0x0f, 4);
-    return true;
-  }
-
-  [[nodiscard]] static bool
-  thre()
-  {
-    return Base::in(PortOffset::LineStatus)&THRE;
-  }
-
-  void
-  putc(char a) override
-  {
-    while (!thre()) {}
-    Base::out(a);
-    if (a == '\n') putc('\r');
-  }
-
-  int
-  puts(const char *string, int length) override
-  {
-    int written = 0;
-
-    if (length == -1)
-      while (*string != '\0') {
-        putc(*string);
-        ++string;
-        ++written;
-      }
-
-    else {
-      for (int i = 0; i < length; ++i) putc(string[i]);
-      written += length;
-    }
-
-    return written;
-  }
-
-  void
-  flush() override
-  {
-  }
-};
-
-static_assert(sizeof(Uart16550<COM1>) == sizeof(void *));
-
-template <>
-FILE *
-uart_init<COM1>()
-{
-  static Uart16550<COM1> device;
-  return &device;
-}