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comparison cos/kernel/kernel.h @ 32:3a6a9b929db0

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Added initial ramdisk and some virtual file system functions
author windel
date Fri, 13 Jan 2012 18:18:17 +0100
parents 0148f55bfe24
children 8012221dd740
comparison
equal deleted inserted replaced
31:88590c42320f 32:3a6a9b929db0
32 struct multiboot_aout_symbol_table { 32 struct multiboot_aout_symbol_table {
33 uint32_t tabsize; 33 uint32_t tabsize;
34 uint32_t strsize, addr, reserved; 34 uint32_t strsize, addr, reserved;
35 }; 35 };
36 36
37 struct multiboot_info { 37 typedef struct multiboot_info_tag
38 {
38 uint32_t flags; // Multiboot flags / version 39 uint32_t flags; // Multiboot flags / version
39 uint32_t mem_lower; // available memory from BIOS 40 uint32_t mem_lower; // available memory from BIOS
40 uint32_t mem_upper; 41 uint32_t mem_upper;
41 uint32_t boot_device; 42 uint32_t boot_device;
42 uint32_t cmdline; // COmmand line 43 uint32_t cmdline; // COmmand line
46 struct multiboot_aout_symbol_table aout_sym; 47 struct multiboot_aout_symbol_table aout_sym;
47 } u; 48 } u;
48 49
49 uint32_t mmap_length; 50 uint32_t mmap_length;
50 uint32_t mmap_addr; 51 uint32_t mmap_addr;
51 }; 52 } multiboot_info_t;
52 53
53 struct memory_map { 54 typedef struct memory_map_tag
55 {
54 uint32_t size; 56 uint32_t size;
55 uint32_t baselow, basehigh; 57 uint64_t base;
56 uint32_t lenlow, lenhigh; 58 uint64_t length;
57 uint32_t type; 59 uint32_t type;
58 }; 60 } __attribute__((packed)) multiboot_memory_map_t;
61
62 typedef struct
63 {
64 uint32_t mod_start;
65 uint32_t mod_end;
66 uint32_t cmdline;
67 uint32_t pad;
68 } multiboot_module_t;
59 69
60 // Memory manager structures: 70 // Memory manager structures:
61 typedef struct 71 typedef struct
62 { 72 {
63 uint64_t present : 1; 73 uint64_t present : 1;
193 char naam[32]; 203 char naam[32];
194 204
195 console_t *console; 205 console_t *console;
196 } task_t; 206 } task_t;
197 207
208 /* Filesystem related types: */
209 struct fs_node_tag;
210 struct fs_dirent_tag;
211
212 typedef uint64_t (*read_type_t)(struct fs_node_tag*, uint64_t, uint64_t, uint8_t*);
213 typedef uint64_t (*write_type_t)(struct fs_node_tag*, uint64_t, uint64_t, uint8_t*);
214 typedef void (*open_type_t)(struct fs_node_tag*);
215 typedef void (*close_type_t)(struct fs_node_tag*);
216 typedef struct fs_dirent_tag* (*readdir_type_t)(struct fs_node_tag*, int);
217
218 typedef struct fs_node_tag
219 {
220 char name[129];
221 uint64_t flags;
222 uint64_t length;
223 uint64_t inode;
224 // Accessor functions:
225 read_type_t read;
226 write_type_t write;
227 open_type_t open;
228 close_type_t close;
229 readdir_type_t readdir;
230 } fs_node_t;
231
232 typedef struct fs_dirent_tag
233 {
234 char name[65];
235 uint64_t inode;
236 } fs_dirent_t;
237
238 #define FS_FILE 0x1
239 #define FS_DIRECTORY 0x2
240
241 uint64_t read_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer);
242 uint64_t write_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer);
243 void open_fs(fs_node_t *node);
244 void close_fs(fs_node_t *node);
245 fs_dirent_t* readdir_fs(fs_node_t *node, int i);
246
247 // Initial ramdisk functions:
248 fs_node_t* initialize_initrd(uint64_t location);
249
198 // Variable argument list things: 250 // Variable argument list things:
199 #define va_start(v,l) __builtin_va_start(v,l) 251 #define va_start(v,l) __builtin_va_start(v,l)
200 #define va_end(v) __builtin_va_end(v) 252 #define va_end(v) __builtin_va_end(v)
201 #define va_arg(v,l) __builtin_va_arg(v,l) 253 #define va_arg(v,l) __builtin_va_arg(v,l)
202 typedef __builtin_va_list va_list; 254 typedef __builtin_va_list va_list;
259 void reboot(void); 311 void reboot(void);
260 void magicBochsBreak(); 312 void magicBochsBreak();
261 void doCPUID(int eax, int *ebx, int *ecx, int *edx); 313 void doCPUID(int eax, int *ebx, int *ecx, int *edx);
262 314
263 // Keyboard driver: 315 // Keyboard driver:
264 void keyboardDriverUpdate(unsigned char scancode); 316 void keyboardDriverUpdate(void);
265 void getline(char *buffer, int len); 317 void getline(char *buffer, int len);
266 318
267 // Timer: 319 // Timer:
268 void timerDriverUpdate(void); 320 void timerDriverUpdate(void);
269 uint64_t getTimeMS(); 321 uint64_t getTimeMS();