2 * Copyright (c) 2007-2008 Semihalf, Rafal Jaworowski <raj@semihalf.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 #include "api_public.h"
38 #define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt,##args); } while (0)
40 #define debugf(fmt, args...)
43 /* Some random address used by U-Boot. */
44 extern long uboot_address;
46 /* crc32 stuff stolen from lib/libdisk/write_ia64_disk.c */
47 static uint32_t crc32_tab[] = {
48 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
49 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
50 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
51 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
52 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
53 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
54 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
55 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
56 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
57 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
58 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
59 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
60 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
61 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
62 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
63 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
64 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
65 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
66 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
67 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
68 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
69 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
70 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
71 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
72 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
73 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
74 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
75 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
76 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
77 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
78 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
79 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
80 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
81 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
82 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
83 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
84 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
85 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
86 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
87 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
88 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
89 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
90 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
94 crc32(const void *buf, size_t size)
103 crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
110 valid_sig(struct api_signature *sig)
113 struct api_signature s;
118 * Clear the checksum field (in the local copy) so as to calculate the
119 * CRC with the same initial contents as at the time when the sig was
125 checksum = crc32((void *)&s, sizeof(struct api_signature));
127 if (checksum != sig->checksum)
134 * Searches for the U-Boot API signature
136 * returns 1/0 depending on found/not found result
139 api_search_sig(struct api_signature **sig)
141 unsigned char *sp, *spend;
146 if (uboot_address == 0)
147 uboot_address = 255 * 1024 * 1024;
149 sp = (void *)(uboot_address & ~0x000fffff);
150 spend = sp + 0x00300000 - API_SIG_MAGLEN;
152 if (!bcmp(sp, API_SIG_MAGIC, API_SIG_MAGLEN)) {
153 *sig = (struct api_signature *)sp;
157 sp += API_SIG_MAGLEN;
164 /****************************************
168 ****************************************/
175 if (!syscall(API_GETC, NULL, (uint32_t)&c))
186 if (!syscall(API_TSTC, NULL, (uint32_t)&t))
196 syscall(API_PUTC, NULL, (uint32_t)&c);
200 ub_puts(const char *s)
203 syscall(API_PUTS, NULL, (uint32_t)s);
206 /****************************************
210 ****************************************/
216 syscall(API_RESET, NULL);
219 static struct mem_region mr[UB_MAX_MR];
220 static struct sys_info si;
223 ub_get_sys_info(void)
227 memset(&si, 0, sizeof(struct sys_info));
229 si.mr_no = UB_MAX_MR;
230 memset(&mr, 0, sizeof(mr));
232 if (!syscall(API_GET_SYS_INFO, &err, (u_int32_t)&si))
235 return ((err) ? NULL : &si);
239 /****************************************
243 ****************************************/
246 ub_udelay(unsigned long usec)
249 syscall(API_UDELAY, NULL, &usec);
253 ub_get_timer(unsigned long base)
257 if (!syscall(API_GET_TIMER, NULL, &cur, &base))
264 /****************************************************************************
268 * Devices are identified by handles: numbers 0, 1, 2, ..., UB_MAX_DEV-1
270 ***************************************************************************/
272 static struct device_info devices[UB_MAX_DEV];
278 return ((i < 0 || i >= UB_MAX_DEV) ? NULL : &devices[i]);
282 * Enumerates the devices: fills out device_info elements in the devices[]
285 * returns: number of devices found
290 struct device_info *di;
293 memset(&devices, 0, sizeof(struct device_info) * UB_MAX_DEV);
296 if (!syscall(API_DEV_ENUM, NULL, di))
299 while (di->cookie != NULL) {
301 if (++n >= UB_MAX_DEV)
304 /* take another device_info */
307 /* pass on the previous cookie */
308 di->cookie = devices[n - 1].cookie;
310 if (!syscall(API_DEV_ENUM, NULL, di))
319 * handle: 0-based id of the device
321 * returns: 0 when OK, err otherwise
324 ub_dev_open(int handle)
326 struct device_info *di;
329 if (handle < 0 || handle >= UB_MAX_DEV)
332 di = &devices[handle];
333 if (!syscall(API_DEV_OPEN, &err, di))
340 ub_dev_close(int handle)
342 struct device_info *di;
344 if (handle < 0 || handle >= UB_MAX_DEV)
347 di = &devices[handle];
348 if (!syscall(API_DEV_CLOSE, NULL, di))
355 * Validates device for read/write, it has to:
360 * returns: 0/1 accordingly
363 dev_valid(int handle)
366 if (handle < 0 || handle >= UB_MAX_DEV)
369 if (devices[handle].state != DEV_STA_OPEN)
376 dev_stor_valid(int handle)
379 if (!dev_valid(handle))
382 if (!(devices[handle].type & DEV_TYP_STOR))
389 ub_dev_read(int handle, void *buf, lbasize_t len, lbastart_t start,
392 struct device_info *di;
396 if (!dev_stor_valid(handle))
399 di = &devices[handle];
400 if (!syscall(API_DEV_READ, &err, di, buf, &len, &start, &act_len))
410 dev_net_valid(int handle)
413 if (!dev_valid(handle))
416 if (devices[handle].type != DEV_TYP_NET)
423 ub_dev_recv(int handle, void *buf, int len, int *rlen)
425 struct device_info *di;
426 int err = 0, act_len;
428 if (!dev_net_valid(handle))
431 di = &devices[handle];
432 if (!syscall(API_DEV_READ, &err, di, buf, &len, &act_len))
442 ub_dev_send(int handle, void *buf, int len)
444 struct device_info *di;
447 if (!dev_net_valid(handle))
450 di = &devices[handle];
451 if (!syscall(API_DEV_WRITE, &err, di, buf, &len))
458 ub_stor_type(int type)
461 if (type & DT_STOR_IDE)
464 if (type & DT_STOR_SCSI)
467 if (type & DT_STOR_USB)
470 if (type & DT_STOR_MMC)
477 ub_mem_type(int flags)
480 switch (flags & 0x000F) {
493 ub_dump_di(int handle)
495 struct device_info *di = ub_dev_get(handle);
498 printf("device info (%d):\n", handle);
499 printf(" cookie\t= 0x%08x\n", (uint32_t)di->cookie);
500 printf(" type\t\t= 0x%08x\n", di->type);
502 if (di->type == DEV_TYP_NET) {
503 printf(" hwaddr\t= ");
504 for (i = 0; i < 6; i++)
505 printf("%02x ", di->di_net.hwaddr[i]);
509 } else if (di->type & DEV_TYP_STOR) {
510 printf(" type\t\t= %s\n", ub_stor_type(di->type));
511 printf(" blk size\t\t= %ld\n", di->di_stor.block_size);
512 printf(" blk count\t\t= %ld\n", di->di_stor.block_count);
517 ub_dump_si(struct sys_info *si)
521 printf("sys info:\n");
522 printf(" clkbus\t= %ld MHz\n", si->clk_bus / 1000 / 1000);
523 printf(" clkcpu\t= %ld MHz\n", si->clk_cpu / 1000 / 1000);
524 printf(" bar\t\t= 0x%08lx\n", si->bar);
527 for (i = 0; i < si->mr_no; i++) {
528 if (si->mr[i].flags == 0)
531 printf(" start\t= 0x%08lx\n", si->mr[i].start);
532 printf(" size\t= 0x%08lx\n", si->mr[i].size);
533 printf(" type\t= %s\n", ub_mem_type(si->mr[i].flags));
538 /****************************************
542 ****************************************/
545 ub_env_get(const char *name)
549 if (!syscall(API_ENV_GET, NULL, (uint32_t)name, (uint32_t)&value))
556 ub_env_set(const char *name, char *value)
559 syscall(API_ENV_SET, NULL, (uint32_t)name, (uint32_t)value);
563 static char env_name[256];
566 ub_env_enum(const char *last)
568 const char *env, *str;
574 * It's OK to pass only the name piece as last (and not the whole
575 * 'name=val' string), since the API_ENUM_ENV call uses envmatch()
576 * internally, which handles such case
578 if (!syscall(API_ENV_ENUM, NULL, (uint32_t)last, (uint32_t)&env))
582 /* no more env. variables to enumerate */
585 /* next enumerated env var */
586 memset(env_name, 0, 256);
587 for (i = 0, str = env; *str != '=' && *str != '\0';)
588 env_name[i++] = *str++;