feat: add given files

Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>

k/include/k/atapi.h

@@ -0,0 +1,87 @@
+#ifndef ATAPI_H_
+#define ATAPI_H_
+
+# include <k/compiler.h>
+# include <k/types.h>
+
+/* Device Control Registers */
+# define PRIMARY_DCR 0x3F6
+# define SECONDARY_DCR 0x376
+
+/* DCR bits */
+# define INTERRUPT_DISABLE (1 << 1)
+# define SRST (1 << 2)
+
+/* Drive selection bytes */
+# define ATA_PORT_MASTER 0x00
+# define ATA_PORT_SLAVE 0x10
+
+/* ATA bus IO ports */
+# define PRIMARY_REG 0x1F0
+# define SECONDARY_REG 0x170
+
+/* ATA I/O registers */
+# define ATA_REG_DATA(PORT) (PORT)
+# define ATA_REG_FEATURES(PORT) ((PORT) + 1)
+# define ATA_REG_ERROR_INFO(PORT) ((PORT) + 1)
+# define ATA_REG_SECTOR_COUNT(PORT) ((PORT) + 2)
+# define ATA_REG_SECTOR_NB(PORT) ((PORT) + 3)
+# define ATA_REG_LBA_LO(PORT) ((PORT) + 3)
+# define ATA_REG_CYLINDER_LOW(PORT) ((PORT) + 4)
+# define ATA_REG_LBA_MI(PORT) ((PORT) + 4)
+# define ATA_REG_CYLINDER_HIGH(PORT) ((PORT) + 5)
+# define ATA_REG_LBA_HI(PORT) ((PORT) + 5)
+# define ATA_REG_DRIVE(PORT) ((PORT) + 6)
+# define ATA_REG_HEAD(PORT) ((PORT) + 6)
+# define ATA_REG_COMMAND(PORT) ((PORT) + 7)
+# define ATA_REG_STATUS(PORT) ((PORT) + 7)
+
+/* Status bits */
+# define ERR (1 << 0)
+# define DRQ (1 << 3)
+# define SRV (1 << 4)
+# define DF (1 << 5)
+# define RDY (1 << 6)
+# define BSY (1 << 7)
+
+# define ABRT (1 << 2)
+
+/* ATAPI signature */
+# define ATAPI_SIG_SC 0x01
+# define ATAPI_SIG_LBA_LO 0x01
+# define ATAPI_SIG_LBA_MI 0x14
+# define ATAPI_SIG_LBA_HI 0xEB
+
+/* ATA commands */
+# define IDENTIFY_PACKET_DEVICE 0xA1
+# define PACKET 0xA0
+
+/* SCSI commands */
+# define READ_12 0xA8
+
+# define DPO (1 << 4)
+
+# define ATAPI_BLK_CACHE_SZ 256
+# define CD_BLOCK_SZ 2048
+# define PACKET_SZ 12
+
+# define PACKET_AWAIT_COMMAND 1
+# define PACKET_DATA_TRANSMIT 2
+# define PACKET_COMMAND_COMPLETE 3
+
+struct SCSI_packet {
+	u8 op_code;
+	u8 flags_lo;
+	u8 lba_hi;
+	u8 lba_mihi;
+	u8 lba_milo;
+	u8 lba_lo;
+	u8 transfer_length_hi;
+	u8 transfer_length_mihi;
+	u8 transfer_length_milo;
+	u8 transfer_length_lo;
+	u8 flags_hi;
+	u8 control;
+} __packed;
+
+#endif /* !ATAPI_H_ */

k/include/k/blockdev.h

@@ -0,0 +1,39 @@
+#ifndef BLOCKDEV_H_
+#define BLOCKDEV_H_
+
+# include <assert.h>
+# include <k/types.h>
+
+struct blockdev;
+
+struct blk_ops {
+	void *(*read)(struct blockdev *, size_t);
+	void (*free_blk)(struct blockdev *, void *);
+};
+
+struct blockdev {
+	size_t blk_size;
+
+	struct blk_ops *ops;
+	void *blocks;
+};
+
+static inline void *block_read(struct blockdev *bd, size_t lba)
+{
+	assert(bd);
+	assert(bd->ops);
+	assert(bd->ops->read);
+
+	return bd->ops->read(bd, lba);
+}
+
+static inline void block_free(struct blockdev *bd, void *ptr)
+{
+	assert(bd);
+	assert(bd->ops);
+	assert(bd->ops->free_blk);
+
+	bd->ops->free_blk(bd, ptr);
+}
+
+#endif	/* BLOCKDEV_H_ */

k/include/k/compiler.h

@@ -0,0 +1,8 @@
+#ifndef COMPILER_H
+#define COMPILER_H
+
+#define array_size(arr)	(sizeof(arr) / sizeof(*arr))
+#define __packed __attribute__((__packed__))
+#define align_up(addr, bytes) (((addr) + (bytes) - 1) & ~((bytes) - 1))
+
+#endif

k/include/k/iso9660.h

@@ -0,0 +1,138 @@
+/*
+ *    This file is part of my_read_iso.
+ *
+ *    my_read_iso is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    my_read_iso is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with my_read_iso; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *    Copyright Alexandre Becoulet, 2003
+ *    contact : alexandre.becoulet@epita.fr
+ */
+
+#ifndef ISO9660_H
+# define ISO9660_H
+
+# define __packed __attribute__((__packed__))
+
+/* Structures used for twin values */
+
+struct endian32 {
+	u32 le;  /* little endian value */
+	u32 be;  /* big endian value */
+} __packed;
+
+struct endian16 {
+	u16 le;  /* little endian value */
+	u16 be;  /* big endian value */
+} __packed;
+
+# define ISO_BLOCK_SIZE 2048
+
+/* ISO9660 Path table structure */
+
+struct iso_path_table_le {
+	u8    idf_len; /* Identifier name length */
+	u8    ext_size;  /* Extended attribute record length */
+	u32   data_blk;  /* File data block index */
+	u16   parent_dir;  /* Number of the parent dir */
+	char     idf[0];  /* directory name */
+} __packed;
+
+/* ISO9660 directory structure */
+
+# define MAX_DIR_DEPTH 8
+# define ISO_DATE_LEN  7
+
+enum iso_file_type {
+	ISO_FILE_HIDDEN   = 1,  /* File is Hidden */
+	ISO_FILE_ISDIR    = 2,  /* Entry is a Directory */
+	ISO_FILE_ASSOCIAT = 4,  /* Entry is an Associated */
+	ISO_FILE_USEEXT   = 8,
+	/* Information is structured according to the extended attribute record */
+	ISO_FILE_USEPERM  = 16,
+	/* Permissions are specified in the extended attribute record */
+	ISO_FILE_MULTIDIR = 128 /* File has more than one directory record */
+};
+
+struct iso_dir {
+	u8   dir_size;  /* Length of directory record */
+	u8   ext_size;  /* Extended attribute record length */
+	struct endian32  data_blk;  /* File data block index */
+	struct endian32  file_size; /* File size */
+	char      date[ISO_DATE_LEN];
+	u8   type;    /* File type (enum iso_file_type) */
+
+	/* only valid if the file is recorded in interleave mode */
+	u8   unit_size; /* File Unit Size */
+	u8   gap_size;  /* Interleave Gap Size */
+
+	struct endian16  vol_seq;
+	u8   idf_len;
+	char    idf[0];     /* file name */
+} __packed;
+
+/* ISO9660 Primary volume descriptor structure */
+
+# define ISO_PRIM_VOLDESC_BLOCK 16
+
+# define ISO_SYSIDF_LEN 32
+# define ISO_VOLIDF_LEN 32
+# define ISO_VOLSET_LEN 128
+# define ISO_PUBIDF_LEN 128
+# define ISO_DPREP_LEN  128
+# define ISO_APP_LEN  128
+# define ISO_CPRFIL_LEN 37
+# define ISO_ABSFIL_LEN 37
+# define ISO_BIBFIL_LEN 37
+# define ISO_LDATE_LEN  17
+
+struct iso_prim_voldesc {
+	u8   vol_desc_type;   /* Volume Descriptor Type (1) */
+	char      std_identifier[5]; /* Standard Identifier (CD001) */
+	u8   vol_desc_version;  /* Volume Descriptor Version (1) */
+	u8   unused1; /* Unused Field */
+	char      syidf[ISO_SYSIDF_LEN]; /* System Identifier */
+	char      vol_idf[ISO_VOLIDF_LEN]; /* Volume Identifier */
+	u8   unused2[8]; /* Unused Field */
+	struct endian32  vol_blk_count;
+	/* Number of logical blocks in the Volume (LE)*/
+	u8   unused4[32]; /* Unused Field */
+	struct endian16  vol_set_size; /* The Volume Set size of the Volume */
+	struct endian16  vol_seq_num; /* The number of the volume in the Set */
+	struct endian16  vol_blk_size; /* The size in bytes of a Logical Block */
+	struct endian32  path_table_size; /* Length in bytes of the path table */
+	u32  le_path_table_blk; /* LittleEndian path table block index */
+	u32  le_opath_table_blk;
+	/* LittleEndian optional path table block index */
+	u32  be_path_table_blk; /* BigEndian path table block index */
+	u32  be_opath_table_blk; /* BigEndian optional path table block index */
+
+	struct iso_dir   root_dir;    /* Root directory entry */
+	u8 unused5[34 - sizeof (struct iso_dir)];/* padding */
+
+	char    volset_idf[ISO_VOLSET_LEN];  /* Name of the multiple volume set */
+	char    pub_idf[ISO_PUBIDF_LEN]; /* Publisher name */
+	char    dprep_idf[ISO_DPREP_LEN];  /* Data preparer name */
+	char    app_idf[ISO_APP_LEN];  /* Application name */
+
+	char    copyright_file[ISO_CPRFIL_LEN]; /* Copyright file name in root dir */
+	char    abstract_file[ISO_ABSFIL_LEN]; /* Abstract file name in root dir */
+	char    bibli_file[ISO_BIBFIL_LEN]; /* Bibliographic file name in root dir */
+	char    date_creat[ISO_LDATE_LEN]; /* Creation date */
+	char    date_modif[ISO_LDATE_LEN]; /* Modification date */
+	char    date_expir[ISO_LDATE_LEN]; /* Expiration date */
+	char    date_effect[ISO_LDATE_LEN]; /* Effective date */
+	u8 filestrutc_version;  /* File Structure Version (1) */
+} __packed;
+
+#endif /* !ISO9660_H */

k/include/k/kfs.h

@@ -0,0 +1,92 @@
+#ifndef K_KFS_H
+#define K_KFS_H
+
+#include <k/types.h>
+
+#define KFS_MAGIC 0xd35f9caa
+
+#define KFS_MIN_BLK_SZ 512
+
+#define KFS_BLK_SZ 4096
+
+#define KFS_BLK_DATA_SZ (KFS_BLK_SZ - 3 * 4)
+
+#define KFS_DIRECT_BLK 10
+
+#define KFS_INDIRECT_BLK 16
+
+#define KFS_INDIRECT_BLK_CNT 16
+
+#define KFS_FNAME_SZ 32
+
+#define KFS_NAME_SZ 32
+
+#define __packed __attribute__((__packed__))
+
+struct kfs_block {
+	u32 idx;
+	u32 usage;
+	u32 cksum;
+	u8 data[KFS_BLK_DATA_SZ];
+} __packed;
+
+struct kfs_iblock {
+	u32 idx;
+	u32 blk_cnt;
+	u32 blks[KFS_INDIRECT_BLK_CNT];
+	u32 cksum;
+} __packed;
+
+struct kfs_inode {
+	u32 inumber;
+	char filename[KFS_FNAME_SZ];
+	u32 file_sz;
+	u32 idx;
+	u32 blk_cnt;
+	u32 next_inode;
+	u32 d_blk_cnt;
+	u32 i_blk_cnt;
+	u32 d_blks[KFS_DIRECT_BLK];
+	u32 i_blks[KFS_INDIRECT_BLK];
+	u32 cksum;
+} __packed;
+
+struct kfs_blk {
+	union {
+		struct kfs_block blk;
+		struct kfs_iblock iblk;
+		struct kfs_inode ino;
+		u8 whole_blk[KFS_BLK_SZ];
+	};
+};
+
+struct kfs_superblock {
+	u32 magic;
+	char name[KFS_NAME_SZ];
+	s32 ctime;
+	u32 blk_cnt;
+	u32 inode_cnt;
+	u32 inode_idx;
+	u32 cksum;
+} __packed;
+
+#define ADLER32_MOD 65521
+
+/**
+ * @brief Adler32 checksum.
+ */
+static inline unsigned int kfs_checksum(const void *data, size_t size)
+{
+	unsigned int a = 1;
+	unsigned int b = 0;
+	size_t i = 0;
+	const u8 *buf = data;
+
+	while (i < size) {
+		a += buf[i++];
+		b += a;
+	}
+	return ((b % ADLER32_MOD) << 16) | (a % ADLER32_MOD);
+}
+
+#endif

k/include/k/kstd.h

@@ -0,0 +1,154 @@
+/*
+* Copyright (c) LSE
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY LSE AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL LSE BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef K_KSTD_H_
+#define K_KSTD_H_
+
+#include <k/types.h>
+
+typedef s32 ssize_t;
+typedef s32 off_t;
+
+struct melody {
+	unsigned long freq;
+	unsigned long duration;
+};
+
+/*
+** constants
+*/
+
+/* console */
+enum e_cons_codes {
+	CONS_ESCAPE = 255,
+	CONS_CLEAR = 1,
+	CONS_COLOR = 2,
+	CONS_SETX = 3,
+	CONS_SETY = 4,
+	CONS_BLACK = 0,
+	CONS_BLUE = 1,
+	CONS_GREEN = 2,
+	CONS_CYAN = 3,
+	CONS_RED = 4,
+	CONS_MAGENTA = 5,
+	CONS_YELLOW = 6,
+	CONS_WHITE = 7,
+	CONS_BLINK = (1 << 7),
+	CONS_LIGHT = (1 << 3)
+};
+
+#define CONS_FRONT(Color)	(Color)
+#define CONS_BACK(Color)	(Color << 4)
+
+/* keyboard */
+enum e_kbd_codes {
+	KEY_ESC = 1,
+	KEY_F1 = 59,
+	KEY_F2 = 60,
+	KEY_F3 = 61,
+	KEY_F4 = 62,
+	KEY_F5 = 63,
+	KEY_F6 = 64,
+	KEY_F7 = 65,
+	KEY_F8 = 66,
+	KEY_f9 = 67,
+	KEY_F10 = 68,
+	KEY_F11 = 87,
+	KEY_F12 = 88,
+	KEY_1 = 2,
+	KEY_2 = 3,
+	KEY_3 = 4,
+	KEY_4 = 5,
+	KEY_5 = 6,
+	KEY_6 = 7,
+	KEY_7 = 8,
+	KEY_8 = 9,
+	KEY_9 = 10,
+	KEY_0 = 11,
+	KEY_TAB = 15,
+	KEY_MAJLOCK = 58,
+	KEY_LSHIFT = 42,
+	KEY_RSHIFT = 54,
+	KEY_ALT = 56,
+	KEY_SPACE = 57,
+	KEY_CTRL = 29,
+	KEY_ENTER = 28,
+	KEY_BACKSPACE = 14,
+	KEY_LEFT = 75,
+	KEY_RIGHT = 77,
+	KEY_UP = 72,
+	KEY_DOWN = 80,
+	KEY_PAUSE = 69,
+	KEY_SYST = 55,
+	KEY_INSER = 82,
+	KEY_SUPPR = 83,
+};
+
+enum e_k_mode {
+	KEY_PRESSED,
+	KEY_RELEASED,
+};
+
+/* mouse */
+enum e_mouse_codes {
+	BUTTON_LEFT = 1,
+	BUTTON_RIGHT = 2
+};
+
+/* misc */
+#define O_RDONLY	0
+#define SEEK_SET	0
+#define SEEK_CUR	1
+#define SEEK_END	2
+#define VIDEO_GRAPHIC	0
+#define VIDEO_TEXT	1
+
+/*
+** syscalls
+*/
+
+#define SYSCALL_WRITE			1
+#define SYSCALL_SBRK			2
+#define SYSCALL_GETKEY			3
+#define SYSCALL_GETTICK			4
+#define SYSCALL_OPEN			5
+#define SYSCALL_READ			6
+#define SYSCALL_SEEK			7
+#define SYSCALL_CLOSE			8
+#define SYSCALL_SETVIDEO		9
+#define SYSCALL_SWAP_FRONTBUFFER	10
+#define SYSCALL_PLAYSOUND		11
+#define SYSCALL_SETPALETTE		12
+
+#define SYSCALL_GETMOUSE		13
+#define NR_SYSCALL			(SYSCALL_GETMOUSE + 1)
+
+#define ENOMEM				1 /* Not enough space */
+#define ENOENT				2 /* No such file or directory */
+#define EIO				3 /* I/O error */
+#define EINVAL				4 /* Invalid argument */
+#define ENOSYS				5 /* Invalid system call number */
+#define EBADF				6 /* fd is not an open file descriptor */
+#define EAGAIN				7 /* Temporary unavailable */
+
+#endif				/* !KSTD_H_ */

k/include/k/types.h

@@ -0,0 +1,15 @@
+#ifndef K_TYPES_H
+#define K_TYPES_H
+
+#include <stddef.h>
+
+typedef unsigned char u8;
+typedef signed char s8;
+typedef unsigned short u16;
+typedef signed short s16;
+typedef unsigned int u32;
+typedef signed int s32;
+typedef unsigned long long u64;
+typedef signed long long s64;
+
+#endif