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-rw-r--r--src/lib/kmem.c38
-rw-r--r--src/lib/mmu.S45
-rw-r--r--src/lib/mmu.c33
-rw-r--r--src/lib/queue.c55
-rw-r--r--src/lib/strings.c119
5 files changed, 0 insertions, 290 deletions
diff --git a/src/lib/kmem.c b/src/lib/kmem.c
deleted file mode 100644
index 9861f12..0000000
--- a/src/lib/kmem.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <globals.h>
-#include <drivers/uart.h>
-#include <lib/kmem.h>
-
-// Output longs at address
-void kmemshow32(void* data, unsigned long length)
-{
- unsigned long* ptr = data;
- for(unsigned long i = 0; i < length; i++) {
- uart_hex(*ptr);
- ptr+=1;
- if (i != length-1)
- uart_char(' ');
- }
- uart_char('\n');
-}
-
-// Output bytes at address
-void kmemshow(void* data, unsigned long length)
-{
- unsigned char* ptr = data;
- for(unsigned long i = 0; i < length; i++) {
- char tmp = *ptr>>4;
- tmp += 0x30;
- if (tmp > 0x39)
- tmp += 0x7;
- uart_char(tmp);
- tmp = *ptr&0xF;
- tmp += 0x30;
- if (tmp > 0x39)
- tmp += 0x7;
- uart_char(tmp);
- ptr+=1;
- if (i != length-1)
- uart_char(' ');
- }
- uart_char('\n');
-}
diff --git a/src/lib/mmu.S b/src/lib/mmu.S
deleted file mode 100644
index faca3cc..0000000
--- a/src/lib/mmu.S
+++ /dev/null
@@ -1,45 +0,0 @@
-.section .text
-.globl mmu_start
-mmu_start:
- mov r2, #0
- // Invalidate Caches
- mcr p15,0,r2,c7,c1,6
- // Invalidate TLB entries
- mcr p15,0,r2,c8,c7,0
- // Data synchronisation barrier
- mcr p15,0,r2,c7,c10,4
-
- // Set all domains to 0b11
- mvn r2, #0
- bic r2, #0xC
- mcr p15,0,r2,c3,c0,0
-
- // Set the translation table base address (remember to align 16 KiB!)
- mcr p15,0,r0,c2,c0,0
- mcr p15,0,r0,c2,c0,1
- mov r3, #0
- mcr p15,0,r3,c2,c0,2
-
- // Set the bits mentioned above
- mrc p15,0,r2,c1,c0,0
- orr r2,r2,r1
- mcr p15,0,r2,c1,c0,0
- bx lr
-
-.globl mmu_stop
-mmu_stop:
- mrc p15,0,r2,c1,c0,0
- bic r2,#0x1000
- bic r2,#0x0004
- bic r2,#0x0001
- mcr p15,0,r2,c1,c0,0
- bx lr
-
-.globl tlb_invalidate
-tlb_invalidate:
- mov r2, #0
- // Invalidate Entries
- mcr p15, 0, r2, c8, c7, 0
- // DSB
- mcr p15, 0, r2, c7, c10, 4
- bx lr
diff --git a/src/lib/mmu.c b/src/lib/mmu.c
deleted file mode 100644
index e9dda7a..0000000
--- a/src/lib/mmu.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <lib/mmu.h>
-
-#define CACHABLE 0x08
-#define BUFFERABLE 0x04
-#define NO_PERMISSIONS_REQUIRED 0b11 << 10
-#define MMU_TABLE_BASE 0x00004000
-
-void mmu_start(unsigned long base, unsigned long flags);
-
-void mmu_section(unsigned long virtual, unsigned long physical, unsigned long flags)
-{
- unsigned long offset = virtual >> 20;
- unsigned long* entry = (unsigned long*)(MMU_TABLE_BASE | (offset << 2));
- unsigned long physval = (physical & 0xFFF00000) | (flags & 0x7FFC) | 0x00C02;
- *entry = physval;
-}
-
-extern unsigned long __bss_end;
-void mmu_init(void)
-{
- for (unsigned long addr = 0x00000000;; addr += 0x00100000) {
- if (addr < (unsigned long)&__bss_end + 0x00100000) {
- mmu_section(addr, addr, CACHABLE | BUFFERABLE);
- } else {
- mmu_section(addr, addr, NO_PERMISSIONS_REQUIRED);
- }
- if (addr == 0x02000000)
- mmu_section(addr, addr, CACHABLE | BUFFERABLE | NO_PERMISSIONS_REQUIRED);
- if (addr == 0xFFF00000)
- break;
- }
- mmu_start(MMU_TABLE_BASE,0x00000001|0x1000|0x0004);
-}
diff --git a/src/lib/queue.c b/src/lib/queue.c
deleted file mode 100644
index 1fc35f6..0000000
--- a/src/lib/queue.c
+++ /dev/null
@@ -1,55 +0,0 @@
-#include <lib/queue.h>
-
-void push_to_queue(struct Entry* e, struct Queue* q)
-{
- q->end.next->next = e;
- q->end.next = e;
- e->next = &q->end;
-}
-
-void prepend_to_queue(struct Entry* e, struct Queue* q)
-{
- e->next = q->start.next;
- q->start.next = e;
- if (e->next->entry_type == END_ENTRY)
- q->end.next = e;
-}
-
-struct Entry* pop_from_queue(struct Queue* q)
-{
- if (q->start.next->entry_type == END_ENTRY)
- return 0;
- struct Entry* e = q->start.next;
- q->start.next = e->next;
- if (e->next->entry_type == END_ENTRY)
- q->end.next = &q->start;
- return e;
-}
-
-struct Entry* remove_next_from_queue(struct Entry* e)
-{
- struct Entry* prev = e;
- struct Entry* remove = e->next;
- struct Entry* next = remove->next;
- if (remove->entry_type != VALUE_ENTRY)
- return 0;
- prev->next = next;
- if (next->entry_type == END_ENTRY)
- next->next = prev;
- return remove;
-}
-
-struct Entry* find_value(void* value, struct Queue* q)
-{
- struct Entry* prev;
- struct Entry* entry;
- prev = &q->start;
- entry = prev->next;
- while (entry->entry_type != END_ENTRY) {
- if (entry->value == value)
- return prev;
- prev = entry;
- entry = prev->next;
- }
- return 0;
-}
diff --git a/src/lib/strings.c b/src/lib/strings.c
deleted file mode 100644
index 674af19..0000000
--- a/src/lib/strings.c
+++ /dev/null
@@ -1,119 +0,0 @@
-#include <lib/kmem.h>
-#include <lib/strings.h>
-
-unsigned long strlen(string_t s)
-{
- unsigned long len = 0;
- while (s[len] != 0) {
- len += 1;
- }
- return len;
-}
-
-void strcpy(string_t src, string_t dest)
-{
- unsigned long idx = 0;
- while (src[idx] != 0) {
- dest[idx] = src[idx];
- idx++;
- }
- dest[idx] = src[idx];
-}
-
-unsigned char strcmp(string_t a, string_t b)
-{
- unsigned long idx = 0;
- while (a[idx] != 0 && b[idx] != 0) {
- if (a[idx] != b[idx]) {
- return 0;
- }
- idx += 1;
- }
- return a[idx] == b[idx];
-}
-
-unsigned char strcmpn(string_t a, string_t b, unsigned int n)
-{
- unsigned long idx = 0;
- while (a[idx] != 0 && b[idx] != 0 && idx+1 < n) {
- if (a[idx] != b[idx]) {
- return 0;
- }
- idx += 1;
- }
- return a[idx] == b[idx];
-}
-
-char* zhex32_to_str(unsigned long value)
-{
- static char data[10];
- char tmp = 0;
- char isz = -1;
- for (int i = 0; i < 8; i++) {
- tmp = (value >> 4*(8-i-1))&0xF;
- if (isz == 0xFF && tmp != 0)
- isz = i;
- if(tmp > 0x9)
- tmp += 7;
- tmp += 0x30;
- data[i] = tmp;
- }
- return data+isz;
-}
-
-char* hex32_to_str(unsigned long value)
-{
- static char data[10];
- char tmp = 0;
- for (int i = 0; i < 8; i++) {
- tmp = (value >> 4*(8-i-1))&0xF;
- if(tmp > 0x9)
- tmp += 7;
- tmp += 0x30;
- data[i] = tmp;
- }
- return data;
-}
-
-char* u32_to_str(unsigned long value)
-{
- unsigned long t = value;
- unsigned long c;
- static char data[12];
- char* dptr = data + 9;
- for (int i = 0; i <= 10; i++) {
- c = t%10;
- *dptr = 0x30 + (c&0xF);
- t /= 10;
- if (t==0)
- break;
- dptr -= 1;
- }
- return dptr;
-}
-
-char* s32_to_str(unsigned long value)
-{
- long t = value;
- unsigned long c;
- char is_neg = 0;
- if (t < 0) {
- t = -t;
- is_neg = 1;
- }
- static char data[13];
- char* dptr = data + 10;
- for (int i = 0; i <= 10; i++) {
- c = t%10;
- *dptr = 0x30 + (c&0xF);
- t /= 10;
- if (t==0)
- break;
- dptr -= 1;
- }
- if (is_neg) {
- dptr -= 1;
- *dptr = '-';
- }
- return dptr;
-}
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