From e2d82e8e18ebddc78a0c187c4b7501b9f3aaa9c5 Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Thu, 5 Oct 2023 06:31:27 -0600
Subject: tb:  move most C++ source files to tb/top/conspiracion

---
 tb/jtag_uart.cpp | 155 -------------------------------------------------------
 1 file changed, 155 deletions(-)
 delete mode 100644 tb/jtag_uart.cpp

(limited to 'tb/jtag_uart.cpp')

diff --git a/tb/jtag_uart.cpp b/tb/jtag_uart.cpp
deleted file mode 100644
index f661cdf..0000000
--- a/tb/jtag_uart.cpp
+++ /dev/null
@@ -1,155 +0,0 @@
-#include <cstdint>
-
-#include <ncursesw/ncurses.h>
-
-#include "avalon.hpp"
-#include "jtag_uart.hpp"
-
-namespace taller::avalon
-{
-	jtag_uart::jtag_uart(std::uint32_t base) noexcept
-	: slave(base, 8, 4)
-	{}
-
-	jtag_uart::~jtag_uart() noexcept
-	{
-		release();
-	}
-
-	void jtag_uart::tick() noexcept
-	{
-		if(!took_over || rx_avail == sizeof rx)
-		{
-			return;
-		}
-
-		if(countdown > 0)
-		{
-			--countdown;
-			return;
-		}
-
-		countdown = 10'000;
-
-		int input = getch();
-		if(input != ERR)
-		{
-			unsigned index = rx_next + rx_avail;
-			if(index >= sizeof rx)
-			{
-				index -= sizeof rx;
-			}
-
-			rx[index] = input;
-			++rx_avail;
-		}
-
-		ctrl_ac = 1;
-	}
-
-	bool jtag_uart::read(std::uint32_t addr, std::uint32_t &data) noexcept
-	{
-		bool valid_read;
-		bool ctrl_ri;
-		bool ctrl_wi;
-		bool ctrl_rrdy;
-
-		std::uint8_t read;
-
-		switch(addr)
-		{
-			case 0:
-				read = rx[rx_next];
-				valid_read = rx_avail > 0;
-
-				if(valid_read)
-				{
-					--rx_avail;
-					rx_next = rx_next + 1 < sizeof rx ? rx_next + 1 : 0;
-				}
-
-				data
-					= rx_avail   << 16
-					| valid_read << 15
-					| (read & 0xff);
-
-				break;
-
-			case 1:
-				ctrl_ri = ctrl_re && rx_avail > 0;
-
-				// Siempre se puede escribir
-				ctrl_wi = ctrl_we;
-
-				// Este bit no existe pero U-Boot lo espera por alguna razón
-				ctrl_rrdy = rx_avail > 0;
-
-				data
-					= ctrl_re   << 0
-					| ctrl_we   << 1
-					| ctrl_ri   << 8
-					| ctrl_wi   << 9
-					| ctrl_ac   << 10
-					| ctrl_rrdy << 12
-					| 63        << 16;
-
-				break;
-		}
-
-		return true;
-	}
-
-	bool jtag_uart::write(std::uint32_t addr, std::uint32_t data, unsigned byte_enable) noexcept
-	{
-		switch(addr)
-		{
-			case 0:
-				putchar(data & 0xff);
-				fflush(stdout);
-
-				ctrl_ac = 1;
-				break;
-
-			case 1:
-				ctrl_re = !!(data & (1 << 0));
-				ctrl_we = !!(data & (1 << 1));
-				if(!!(data & (1 << 10)))
-				{
-					ctrl_ac = 0;
-				}
-
-				break;
-		}
-
-		return true;
-	}
-
-	bool jtag_uart::irq() noexcept
-	{
-		return ctrl_we || (ctrl_re && rx_avail > 0);
-	}
-
-	void jtag_uart::takeover() noexcept
-	{
-		if(took_over)
-		{
-			return;
-		}
-
-		assert(::initscr() != nullptr);
-		assert(::noecho() != ERR);
-		assert(::nodelay(stdscr, TRUE) != ERR);
-		assert(::cbreak() != ERR);
-
-		took_over = true;
-	}
-
-	void jtag_uart::release() noexcept
-	{
-		if(took_over)
-		{
-			::endwin();
-			putchar('\n');
-		}
-	}
-}
-- 
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