| tkernel_2/monitor/include/device.h | bare source | permlink (0.02 seconds) |
1: /* 2: *---------------------------------------------------------------------- 3: * T-Kernel 2.0 Software Package 4: * 5: * Copyright 2011 by Ken Sakamura. 6: * This software is distributed under the latest version of T-License 2.x. 7: *---------------------------------------------------------------------- 8: * 9: * Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17. 10: * Modified by TRON Forum(http://www.tron.org/) at 2015/06/01. 11: * 12: *---------------------------------------------------------------------- 13: */ 14: 15: /* 16: * device.h 17: * 18: * T-Monitor device-related definitions 19: * 20: * since machines support different devices, functions defined here 21: * may not be usable all the time. 22: * Available functions differ from one system to the other. 23: */ 24: 25: #ifndef __MONITOR_DEVICE_H__ 26: #define __MONITOR_DEVICE_H__ 27: 28: /* ------------------------------------------------------------------------ */ 29: /* 30: * serial port 31: */ 32: 33: /* 34: * initialize serial port 35: * port console port number (0 - ) 36: * when it is -1, it means there is no console. 37: * speed communication speed (bps) 38: */ 39: IMPORT ER initSIO( W port, W speed ); 40: 41: /* 42: * serial port output (one character transmission) 43: */ 44: IMPORT void putSIO( UB c ); 45: 46: /* 47: * serial port input (one character reception) 48: * tmo timeout (milliseconds) 49: * You can not wait forever. 50: * return value >= 0 : character code 51: * -1 : timeout 52: * input data using buffer. 53: * receive error is ignored. 54: */ 55: IMPORT W getSIO( W tmo ); 56: 57: #define SIO_RCVBUFSZ 64 /* receive buffer size */ 58: #define SIO_PTRMSK (SIO_RCVBUFSZ - 1) 59: 60: /* 61: * control block for a serial port 62: */ 63: typedef struct siocb SIOCB; 64: struct siocb { 65: UW info; /* driver can use this for arbitrary purposes */ 66: UB rcvbuf[SIO_RCVBUFSZ]; /* receive buffer */ 67: UW iptr; /* input pointer */ 68: UW optr; /* output pointer */ 69: 70: /* 71: * I/O functions 72: * same specification as putSIO(), and getSIO() 73: */ 74: void (*put)( SIOCB*, UB c ); /* send a character */ 75: W (*get)( SIOCB*, W tmo ); /* receive a character */ 76: }; 77: 78: /* 79: * serial port configuration information 80: */ 81: typedef struct cfgsio CFGSIO; 82: struct cfgsio { 83: /* 84: * initialization processing 85: * serial port that is supported by the initialization of CFGSIO 86: * speed communication speed (bps) 87: * initialize the serial port according to the specified parameters and set SIOCB 88: * SIOCB is given in 0-cleared state initially. 89: * Subsequent I/O operations uses the SIOCB. 90: */ 91: ER (*initsio)( SIOCB*, const CFGSIO*, W speed ); 92: 93: UW info; /* additional information (driver-dependent) */ 94: }; 95: 96: IMPORT W ConPort; /* console port number */ 97: IMPORT UW ConPortBps; /* console port communication speed (bps) */ 98: 99: /* ------------------------------------------------------------------------ */ 100: /* 101: * disk drive 102: */ 103: 104: #define L_DEVNM 8 /* device name length */ 105: #define N_PARTITION 4 /* number of partitions */ 106: 107: /* 108: * disk access 109: * devnm device name (possibly with the partition number) 110: * blk start block number 111: * if device name has a partition number, then the block number in that partition 112: * if there is no partition number in the disk anme, the block number in the entire disk 113: * nblk number of blocks 114: * buf buffer (* ) 115: * wrt FALSE : read 116: * TRUE : write 117: * return value error code 118: * argument marked with (* ) may be an address specified from external sources. 119: */ 120: IMPORT ER rwDisk( const UB *devnm, W blk, W nblk, void *buf, BOOL wrt ); 121: 122: /* 123: * obtain disk information 124: * devnm device name (possibly with the partition number) 125: * blksz return block size (* ) 126: * tblks return the number of all blocks (* ) 127: * return value error code 128: * if there is a partition number to the device name, return the specific information to that partition. 129: * argument marked with (* ) may be an address specified from external sources. 130: */ 131: IMPORT ER infoDisk( const UB *devnm, W *blksz, W *tblks ); 132: 133: /* 134: * control block for a disk drive 135: * During the first initialization of the disk driver, please do the following: 136: * assume the first initialization if blksz == 0. 137: * blksz block size 138: * boot 0xff if there is a partition 139: * 0 if there is no partition 140: * part[0] the starting block number of a whole disk and number of blocks 141: * rwdisk I/O processing function 142: * 143: * after the disk driver initialization, boot and part[1 - (and up) ] are 144: * set by upper level software. 145: */ 146: typedef struct diskcb DISKCB; 147: struct diskcb { 148: UW info; /* driver can use this for arbitrary purposes */ 149: UW blksz; /* block size (in bytes) */ 150: UB boot; /* boot partition number (0: no partition) */ 151: struct partition { /* partition information */ 152: UW sblk; /* start block number */ 153: UW nblk; /* number of blocks */ 154: } part[1 + N_PARTITION]; /* [0]:whole, [1- (and up)]: each partition */ 155: 156: /* 157: * I/O functions 158: * blk start block number 159: * this is not a block number within a partition, but 160: * it is a disk-wide block number unique inside the whole disk. 161: * nblk number of blocks 162: * buf buffer (* ) 163: * wrt FALSE : read 164: * TRUE : write 165: * return value error code 166: * argument marked with (* ) may be an address specified from external sources. 167: */ 168: ER (*rwdisk)( DISKCB*, W blk, W nblk, void *buf, BOOL wrt ); 169: }; 170: 171: /* 172: * disk drive configuration information 173: */ 174: typedef struct cfgdisk CFGDISK; 175: struct cfgdisk { 176: UB name[L_DEVNM]; /* device name */ 177: UW attr; /* disk drive attribute */ 178: 179: /* 180: * initialization processing 181: * disk drive that is supported by the initialization by CFGDISK 182: * disk drive is initialized and DISKCB is set up. 183: * DISKCB is given in 0-cleared state initially. Subsequently, 184: * DISKCB returned in the previous call is passed. 185: * I/O function receives this DISKCB. 186: * 187: * In principle, this function is called every time an I/O processing is performed. 188: * Hence, there is no need to perform hardware initialization on the second call and afterward. 189: * but whether the hardware status remains as it was the last time the initialization took place is not guaranteed, 190: * so, 191: * it is desirable to initialize hardware from time to as necessary. 192: * If we perform re-initialization, DISKCB is to be re-initialized. 193: */ 194: ER (*initdisk)( DISKCB*, const CFGDISK* ); 195: 196: UW info; /* additional information (driver-dependent) */ 197: }; 198: 199: /* disk drive attribute */ 200: #define DA_RONLY 0x0001 /* read-only */ 201: 202: /* 203: * open disk (obtain disk drive control block) 204: * open a device indicated by `devnm', and return the disk information in `dcb'. 205: * devnm can specify a device name with partition number. 206: * return the partition number specified by devnm. 207: * return value 0 : entire disks 208: * 1 - : partition number 209: * < 0 : error 210: * usually openDisk() is internally called implicitly, and you don't have to call it explicitly. 211: * it is provided here so that you can call it independently 212: */ 213: IMPORT W openDisk( const UB *devnm, DISKCB **dcb ); 214: 215: /* ------------------------------------------------------------------------ */ 216: /* 217: * Flash ROM 218: */ 219: 220: IMPORT const UW FROM_SECSZ; /* Flash ROM sector size (bytes) */ 221: 222: /* 223: * Flash ROM sector erase / write 224: * addr Flash ROM write start address (must be on a sector boundary) 225: * data write data start address (RAM) 226: * nsec number of sectors to write 227: * msg 0 : no message display no verify write 228: * 1 : message display with verify write 229: * -1 : message display no verify write 230: * return value error code 231: */ 232: IMPORT ER writeFrom( UW addr, UW data, W nsec, W msg ); 233: 234: /* 235: * set up Flash ROM loading processing 236: * mode 0 : set up for loading write data 237: * -1 : set up for writing already loaded data 238: * 239: * in the case of setting up loading (mode= 0) 240: * addr returns the following value. 241: * addr[0] the start address in RAM area for loading data 242: * addr[1] the end address in RAM area for loading data 243: * addr[1] - addr[0] + 1 = load area size 244: * in principle, load area size matches the size of FLASH ROM. 245: * But if RAM is small, there may be cases 246: * in which load area size is smaller than that of Flash ROM size. 247: * addr[2] the distance between the data load RAM area and Flash ROM area 248: * adjustment is made so that the addr[0] position is written to the beginning of Flash ROM. 249: * addr[2] = addr[0] - Flash ROM start address 250: * 251: * in the case of setting up for writing (mode = -1), 252: * we set the writing area based on the addr value when we called this function using mode = 0. 253: * addr[0] starting address of loaded data in RAM area (to be written) 254: * addr[1] ending address of loaded data in RAM area (to be written) 255: * addr[1] - addr[0] + 1 = size of written data 256: * addr[2] the value remains the same after it was set by mode = 0 (ignored) 257: * the modified values are returned in addr. 258: * addr[0] Flash ROM write start address 259: * addr[1] start address of write data in RAM 260: * address will be adjusted to the sector boundary of Flash ROM. 261: * addr[2] number of sectors to write 262: * Since writing is done in the unit of sectors, the writing will be done from the sector boundary, 263: * areas immediately before and after the designated area may be part of the write operation. 264: */ 265: IMPORT void setupFlashLoad( W mode, UW addr[3] ); 266: 267: /* ------------------------------------------------------------------------ */ 268: /* 269: * PCMCIA 270: */ 271: 272: /* 273: * initialize slot 274: */ 275: IMPORT void initPcSlot( void ); 276: 277: /* ------------------------------------------------------------------------ */ 278: /* 279: * PCI device 280: */ 281: 282: /* 283: * initialize PCI 284: */ 285: IMPORT void initPCI( void ); 286: 287: /* 288: * submodule extended SVC function 289: * fno function code 290: * p1-p3 parameter(s) 291: * er_p returns error code 292: * return value if the function is handled, returns TRUE. 293: * if not, returns FALSE 294: */ 295: IMPORT BOOL pciSVC( W fno, W p1, W p2, W p3, W *er_p ); 296: 297: /* ------------------------------------------------------------------------ */ 298: /* 299: * memory disk 300: */ 301: 302: /* 303: * initialization processing 304: */ 305: IMPORT ER initMemDisk( DISKCB *dcb, const CFGDISK *cfg ); 306: 307: /* 308: * submodule extended SVC function 309: * fno function code 310: * p1-p3 parameter(s) 311: * er_p returns error code 312: * return value if the function is handled, returns TRUE. 313: * if not, returns FALSE 314: */ 315: IMPORT BOOL memDiskSVC( W fno, W p1, W p2, W p3, W *er_p ); 316: 317: /* 318: * exclude area used for RAM disk 319: * top the start of RAM area (the lower address) 320: * end the end of RAM area (upper area) 321: * excluding the area used for RAM disk from the upper end of RAM area, 322: * return the address (the end of RAM area) as return value. 323: */ 324: IMPORT UW omitRAMDiskArea( UW top, UW end ); 325: 326: /* ------------------------------------------------------------------------ */ 327: /* 328: * display 329: */ 330: 331: /* 332: * display power off message 333: */ 334: IMPORT void DispPowerOff( void ); 335: 336: /* 337: * display the progression (two hexadecimal digits) on the screen 338: * monitor uses n = 0x01 - 0x0f. 339: * OS uses values 0x10 and above, and 0x00 means the booting has completed. 340: */ 341: IMPORT void DispProgress( W n ); 342: 343: /* ------------------------------------------------------------------------ */ 344: 345: #endif /* __MONITOR_DEVICE_H__ */