mirror of
https://github.com/drasko/codezero.git
synced 2026-01-12 02:43:15 +01:00
Evaluated license issues, made some other enhancements.
This commit is contained in:
Bahadir Balban
@@ -1,11 +1,6 @@
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#ifndef __ERRNO_H__
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#define __ERRNO_H__
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/*
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* LICENSE:
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* Taken from linux errno.h
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*/
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#define EPERM 1 /* Operation not permitted */
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#define ENOENT 2 /* No such file or directory */
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#define ESRCH 3 /* No such process */
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@@ -140,34 +135,8 @@
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#define EKEYREVOKED 128 /* Key has been revoked */
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#define EKEYREJECTED 129 /* Key was rejected by service */
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/* for robust mutexes */
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#define EOWNERDEAD 130 /* Owner died */
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#define ENOTRECOVERABLE 131 /* State not recoverable */
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/* Codezero specific error codes */
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#define EACTIVE 132 /* Task active */
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#define ENOIPC 133 /* General IPC error */
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#ifdef __KERNEL__
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/* Should never be seen by user programs */
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#define ERESTARTSYS 512
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#define ERESTARTNOINTR 513
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#define ERESTARTNOHAND 514 /* restart if no handler.. */
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#define ENOIOCTLCMD 515 /* No ioctl command */
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#define ERESTART_RESTARTBLOCK 516 /* restart by calling sys_restart_syscall */
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/* Defined for the NFSv3 protocol */
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#define EBADHANDLE 521 /* Illegal NFS file handle */
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#define ENOTSYNC 522 /* Update synchronization mismatch */
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#define EBADCOOKIE 523 /* Cookie is stale */
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#define ENOTSUPP 524 /* Operation is not supported */
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#define ETOOSMALL 525 /* Buffer or request is too small */
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#define ESERVERFAULT 526 /* An untranslatable error occurred */
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#define EBADTYPE 527 /* Type not supported by server */
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#define EJUKEBOX 528 /* Request initiated, but will not complete before timeout */
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#define EIOCBQUEUED 529 /* iocb queued, will get completion event */
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#define EIOCBRETRY 530 /* iocb queued, will trigger a retry */
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#endif /* __KERNEL__ */
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#endif /* __ERRNO_H__ */
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@@ -7,7 +7,6 @@
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#ifndef __KIP_H__
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#define __KIP_H__
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/* FIXME: LICENCE: Taken from a forum post. Must reimplement with GPL terms */
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#define __YEAR__ ((((__DATE__ [7] - '0') * 10 + (__DATE__ [8] - '0')) * 10 \
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+ (__DATE__ [9] - '0')) * 10 + (__DATE__ [10] - '0'))
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@@ -24,19 +23,18 @@
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#define __DAY__ ((__DATE__ [4] == ' ' ? 0 : __DATE__ [4] - '0') * 10 \
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+ (__DATE__ [5] - '0'))
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//#define DATE_AS_INT (((YEAR - 2000) * 12 + MONTH) * 31 + DAY)
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#define CODEZERO_VERSION 0
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#define CODEZERO_SUBVERSION 1
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#define KDESC_DATE_SIZE 12
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#define KDESC_TIME_SIZE 9
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struct kernel_desc {
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u16 rsrv;
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u8 subid;
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u8 id;
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u16 gendate;
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u16 date_rsrv;
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u16 subsubver;
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u8 subver;
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u8 ver;
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u32 supplier;
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struct kernel_descriptor {
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u32 version;
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u32 subversion;
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u32 magic;
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char date[KDESC_DATE_SIZE];
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char time[KDESC_TIME_SIZE];
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} __attribute__((__packed__));
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/* Experimental KIP with non-standard offsets */
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@@ -70,7 +68,7 @@ struct kip {
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u32 utcb;
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struct kernel_desc kdesc;
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struct kernel_descriptor kdesc;
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} __attribute__((__packed__));
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/*
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@@ -1,47 +0,0 @@
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#ifndef __DEBUG_MACRO_S__
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#define __DEBUG_MACRO_S__
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#include INC_PLAT(offsets.h)
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#define UART01x_DR 0x00
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/*
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* linux/arch/arm/kernel/debug.S
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*
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* Copyright (C) 1994-1999 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* 32-bit debugging code
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*/
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.macro addruart,rx
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mrc p15, 0, \rx, c1, c0
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tst \rx, #1 @ MMU enabled?
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moveq \rx, #0x10000000
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orreq \rx, \rx, #0x001F0000
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orreq \rx, \rx, #0x00001000
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/* FIXME: This offset is incorrect for now. Make sure you pass correct offset */
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movne \rx, #0xf9000000 @#IO_AREA0_VADDR
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@movne \rx, #IO_AREA0_VADDR
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addne \rx, \rx, #PB926_UART0_VOFFSET @ UART0 page offset from
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@ virtual io area base.
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.endm
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.macro senduart,rd,rx
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strb \rd, [\rx, #UART01x_DR]
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.endm
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.macro waituart,rd,rx
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1001: ldr \rd, [\rx, #0x18] @ UARTFLG
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tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
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bne 1001b
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.endm
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.macro busyuart,rd,rx
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1001: ldr \rd, [\rx, #0x18] @ UARTFLG
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tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
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bne 1001b
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.endm
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#endif /* __DEBUG_MACRO_S__ */
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@@ -181,12 +181,12 @@ void kip_init()
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kip.api_version = 0xBB;
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kip.api_subversion = 1;
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kip.api_flags = 0; /* LE, 32-bit architecture */
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kip.kdesc.subid = 0x1;
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kip.kdesc.id = 0xBB;
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kip.kdesc.gendate = (__YEAR__ << 9)|(__MONTH__ << 5)|(__DAY__);
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kip.kdesc.subsubver = 0x00000001; /* Consider as .00000001 */
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kip.kdesc.ver = 0;
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memcpy(&kip.kdesc.supplier, "BBB", 3);
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kip.kdesc.magic = 0xBBB;
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kip.kdesc.version = CODEZERO_VERSION;
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kip.kdesc.subversion = CODEZERO_SUBVERSION;
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// kip.kdesc.gendate = (__YEAR__ << 9)|(__MONTH__ << 5)|(__DAY__);
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strncpy(kip.kdesc.date, __DATE__, KDESC_DATE_SIZE);
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strncpy(kip.kdesc.time, __TIME__, KDESC_TIME_SIZE);
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kip_init_syscalls();
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@@ -198,6 +198,8 @@ void kip_init()
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add_mapping(virt_to_phys(&kip), USER_KIP_PAGE, PAGE_SIZE,
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MAP_USR_RO_FLAGS);
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printk("%s: Kernel built on %s, %s\n", __KERNELNAME__,
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kip.kdesc.date, kip.kdesc.time);
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}
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@@ -41,29 +41,27 @@ int strcmp(const char *s1, const char *s2)
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}
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}
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/* LICENCE: Taken from linux for now BB.
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* strncpy - Copy a length-limited, %NUL-terminated string
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* @dest: Where to copy the string to
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* @src: Where to copy the string from
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* @count: The maximum number of bytes to copy
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*
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* The result is not %NUL-terminated if the source exceeds
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* @count bytes.
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*
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* In the case where the length of @src is less than that of
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* count, the remainder of @dest will be padded with %NUL.
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/*
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* Copies string pointed by @from to string pointed by @to.
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*
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* If count is greater than the length of string in @from,
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* pads rest of the locations with null.
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*/
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char *strncpy(char *dest, const char *src, int count)
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char *strncpy(char *to, const char *from, int count)
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{
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char *tmp = dest;
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char *temp = to;
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while (count) {
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if ((*tmp = *src) != 0)
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src++;
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tmp++;
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*temp = *from;
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/*
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* Stop updating from if null
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* terminator is reached.
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*/
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if (*from)
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from++;
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temp++;
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count--;
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}
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return dest;
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return to;
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}
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@@ -1,7 +1,41 @@
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#include INC_PLAT(debug-macro.S)
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/*
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* Basic UART printing.
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*/
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#include INC_ARCH(asm.h)
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#include INC_GLUE(memlayout.h)
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#define UART_DATA_OFFSET 0x0
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.macro uart_address rx
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mrc p15, 0, \rx, c1, c0
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tst \rx, #1 @ MMU enabled?
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moveq \rx, #0x10000000
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orreq \rx, \rx, #0x001F0000
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orreq \rx, \rx, #0x00001000
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/* FIXME: This offset is incorrect */
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movne \rx, #0xf9000000 @#IO_AREA0_VADDR
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addne \rx, \rx, #PB926_UART0_VOFFSET @ UART0 page offset from
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@ virtual io area base.
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.endm
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.macro uart_send, ry, rx
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strb \ry, [\rx, #UART_DATA_OFFSET]
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.endm
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.macro uart_wait, ry, rx
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501:
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ldr \ry, [\rx, #0x18]
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tst \ry, #1 << 5
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bne 501b
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.endm
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.macro uart_busy, ry, rx
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501:
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ldr \ry, [\rx, #0x18]
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tst \ry, #1 << 3
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bne 501b
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.endm
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.text
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/*
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* Useful debugging routines
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@@ -49,11 +83,11 @@ printhex: adr r2, hexbuf
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BEGIN_PROC(printascii)
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get_straddr r0, r1
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addruart r3
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uart_address r3
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b 2f
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1: waituart r2, r3
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senduart r1, r3
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busyuart r2, r3
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1: uart_wait r2, r3
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uart_send r1, r3
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uart_busy r2, r3
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teq r1, #'\n'
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moveq r1, #'\r'
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beq 1b
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@@ -65,7 +99,7 @@ BEGIN_PROC(printascii)
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END_PROC(printascii)
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BEGIN_PROC(printch)
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addruart r3
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uart_address r3
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mov r1, r0
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mov r0, #0
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b 1b
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