From 615e3302c9dd358bb64cd56d1f3814ad8d5df84d Mon Sep 17 00:00:00 2001
From: vetch <vetch97@gmail.com>
Date: Sat, 4 Jan 2020 19:37:32 +0100
Subject: rearranged files, updated makefile

---
 demo_functionality.c | 121 ---------------------------------------------------
 1 file changed, 121 deletions(-)
 delete mode 100644 demo_functionality.c

(limited to 'demo_functionality.c')

diff --git a/demo_functionality.c b/demo_functionality.c
deleted file mode 100644
index 217a858..0000000
--- a/demo_functionality.c
+++ /dev/null
@@ -1,121 +0,0 @@
-#include "io.h"
-#include "psr.h"
-#include "memory.h"
-#include "translation_table_descriptors.h"
-#include "ramfs.h"
-#include "strings.h"
-#include "paging.h"
-#include "armclock.h"
-#include "scheduler.h"
-
-void demo_paging_support(void)
-{
-  uint32_t ID_MMFR0;
-  // get contents of coprocessor register to check for paging support
-  asm("mrc p15, 0, %0, c0, c1, 4" : "=r" (ID_MMFR0));
-  
-  char *paging;
-  
-  switch(ID_MMFR0 & 0xf) /* lowest 4 bits indicate VMSA support */
-    {
-    case 0 : paging = "no paging"; break;
-    case 1 : paging = "implementation defined paging"; break;
-    case 2 : paging = "VMSAv6, with cache and TLB type registers"; break;
-    case 3 : paging = "VMSAv7, with support for remapping and access flag"; break;
-    case 4 : paging = "VMSAv7 with PXN bit supported"; break;
-    case 5 : paging = "VMSAv7, PXN and long format descriptors. EPAE is supported."; break;
-    default : paging = "?_? unknown paging ?_?";
-    }
-  
-  puts(paging);
-}
-
-void demo_current_mode(void)
-{
-
-  // get content of current program status register to check the current
-  // processor mode (should be system, as we set it in boot.S)
-  PSR_t CPSR = read_CPSR();
-
-  char *mode_name;
-  
-  switch(CPSR.fields.PSR_MODE_4_0)
-    {
-    case MODE_USER       : mode_name = "User (PL0)"; break;
-    case MODE_FIQ        : mode_name = "FIQ (PL1)"; break;
-    case MODE_IRQ        : mode_name = "IRQ (PL1)"; break;
-    case MODE_SUPERVISOR : mode_name = "Supervisor (PL1)"; break;
-    case MODE_MONITOR    : mode_name = "Monitor (PL1)"; break;
-    case MODE_ABORT      : mode_name = "Abort (PL1)"; break;
-    case MODE_HYPERVISOR : mode_name = "Hyp (PL2)"; break;
-    case MODE_UNDEFINED  : mode_name = "Undefined (PL1)"; break;
-    case MODE_SYSTEM     : mode_name = "System (PL1)"; break;
-    default : mode_name = "Unknown mode"; break;
-    }
-
-  prints("current mode: ");
-  puts(mode_name);
-}
-
-#define TRANSLATION_TABLE					     \
-  ((short_section_descriptor_t volatile*) TRANSLATION_TABLE_BASE)
-
-extern char
-  _binary_ramfs_img_start,
-  _binary_ramfs_img_end,
-  _binary_ramfs_img_size;
-
-void __attribute__((noreturn)) demo_setup_PL0(void)
-{
-  // find PL_0_test.img im ramfs
-  struct ramfile PL_0_test_img;
-
-  if (find_file(&_binary_ramfs_img_start, "PL_0_test.img",
-		&PL_0_test_img))
-    {
-      puts("PL_0_test.img not found :(");
-      asm volatile ("wfi");
-    }
-
-  // dummy value 5 for now, as we haven't implemented processes yet  
-  uint16_t physical_section_number = claim_and_map_section
-    ((void*) 5, PL0_SECTION_NUMBER, AP_2_0_MODEL_RW_ALL);
-  
-  if (physical_section_number == SECTION_NULL)
-    {
-      puts("Couldn't claim memory section for unprivileged code :(");
-      while(1);
-    }
-  
-  size_t physical_section_start =
-    (((size_t) physical_section_number) << 20);
-    
-  // check that translation works... by copying a string using one
-  // mapping and reading it using other :D
-  char str_part1[] = "mapped section for PL0 code (0x";
-  char str_part2[] = " -> 0x";
-  char str_part3[] = ")";
-
-  char *string_end = (char*) physical_section_start;
-
-  memcpy(string_end, str_part1, sizeof(str_part1) - 1);
-  uint32_to_hex(VIRTUAL_PL0_MEMORY_START,
-		string_end += sizeof(str_part1) - 1);
-  memcpy(string_end += 8, str_part2, sizeof(str_part2) - 1);
-  uint32_to_hex(physical_section_start,
-		string_end += sizeof(str_part2) - 1);
-  memcpy(string_end += 8, str_part3, sizeof(str_part3));
-
-  puts((char*) VIRTUAL_PL0_MEMORY_START);
-
-  // now paste a userspace program to that section
-  memcpy((void*) VIRTUAL_PL0_MEMORY_START,
-	 PL_0_test_img.file_contents, PL_0_test_img.file_size);
-
-  puts("copied PL0 code to it's section");
-
-  puts("All ready! scheduling!");
-
-  schedule_new(VIRTUAL_PL0_MEMORY_START, // the new pc
-	       VIRTUAL_PL0_MEMORY_END);  // the new sp
-}
-- 
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