api_examples/demo.c

   1 /*
   2  * (C) Copyright 2007-2008 Semihalf
   3  *
   4  * Written by: Rafal Jaworowski <raj@semihalf.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  *
  24  */
  25
  26 #include <common.h>
  27 #include <linux/types.h>
  28 #include <api_public.h>
  29
  30 #include "glue.h"
  31
  32 #define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
  33
  34 #define BUF_SZ          2048
  35 #define WAIT_SECS       5
  36
  37 void    test_dump_buf(void *, int);
  38 void    test_dump_di(int);
  39 void    test_dump_si(struct sys_info *);
  40 void    test_dump_sig(struct api_signature *);
  41
  42 static char buf[BUF_SZ];
  43
  44 int main(int argc, char *argv[])
  45 {
  46         int rv = 0;
  47         int h, i, j;
  48         int devs_no;
  49         struct api_signature *sig = NULL;
  50         ulong start, now;
  51         struct device_info *di;
  52
  53         if (!api_search_sig(&sig))
  54                 return -1;
  55
  56         syscall_ptr = sig->syscall;
  57         if (syscall_ptr == NULL)
  58                 return -2;
  59
  60         if (sig->version > API_SIG_VERSION)
  61                 return -3;
  62
  63         printf("API signature found @%x\n", (unsigned int)sig);
  64         test_dump_sig(sig);
  65
  66         printf("\n*** Consumer API test ***\n");
  67         printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr,
  68                 (unsigned int)&syscall_ptr);
  69
  70         /* console activities */
  71         ub_putc('B');
  72
  73         printf("*** Press any key to continue ***\n");
  74         printf("got char 0x%x\n", ub_getc());
  75
  76         /* system info */
  77         test_dump_si(ub_get_sys_info());
  78
  79         /* timing */
  80         printf("\n*** Timing - wait a couple of secs ***\n");
  81         start = ub_get_timer(0);
  82         printf("\ntime: start %lu\n\n", start);
  83         for (i = 0; i < WAIT_SECS; i++)
  84                 for (j = 0; j < 1000; j++)
  85                         ub_udelay(1000);        /* wait 1 ms */
  86
  87         /* this is the number of milliseconds that passed from ub_get_timer(0) */
  88         now = ub_get_timer(start);
  89         printf("\ntime: now %lu\n\n", now);
  90
  91         /* enumerate devices */
  92         printf("\n*** Enumerate devices ***\n");
  93         devs_no = ub_dev_enum();
  94
  95         printf("Number of devices found: %d\n", devs_no);
  96         if (devs_no == 0)
  97                 return -1;
  98
  99
 100         printf("\n*** Show devices ***\n");
 101         for (i = 0; i < devs_no; i++) {
 102                 test_dump_di(i);
 103                 printf("\n");
 104         }
 105
 106         printf("\n*** Operations on devices ***\n");
 107
 108         /* test opening a device already opened */
 109         h = 0;
 110         if ((rv = ub_dev_open(h)) != 0) {
 111                 errf("open device %d error %d\n", h, rv);
 112                 return -1;
 113         }
 114         if ((rv = ub_dev_open(h)) != 0)
 115                 errf("open device %d error %d\n", h, rv);
 116
 117         ub_dev_close(h);
 118
 119         /* test storage */
 120         printf("Trying storage devices...\n");
 121         for (i = 0; i < devs_no; i++) {
 122                 di = ub_dev_get(i);
 123
 124                 if (di->type & DEV_TYP_STOR)
 125                         break;
 126
 127         }
 128         if (i == devs_no)
 129                 printf("No storage devices available\n");
 130         else {
 131                 memset(buf, 0, BUF_SZ);
 132
 133                 if ((rv = ub_dev_open(i)) != 0)
 134                         errf("open device %d error %d\n", i, rv);
 135
 136                 else if ((rv = ub_dev_read(i, buf, 1, 0)) != 0)
 137                         errf("could not read from device %d, error %d\n", i, rv);
 138
 139                 printf("Sector 0 dump (512B):\n");
 140                 test_dump_buf(buf, 512);
 141
 142                 ub_dev_close(i);
 143         }
 144
 145         /* test networking */
 146         printf("Trying network devices...\n");
 147         for (i = 0; i < devs_no; i++) {
 148                 di = ub_dev_get(i);
 149
 150                 if (di->type == DEV_TYP_NET)
 151                         break;
 152
 153         }
 154         if (i == devs_no)
 155                 printf("No network devices available\n");
 156         else {
 157                 if ((rv = ub_dev_open(i)) != 0)
 158                         errf("open device %d error %d\n", i, rv);
 159                 else if ((rv = ub_dev_send(i, &buf, 2048)) != 0)
 160                         errf("could not send to device %d, error %d\n", i, rv);
 161
 162                 ub_dev_close(i);
 163         }
 164
 165         if (ub_dev_close(h) != 0)
 166                 errf("could not close device %d\n", h);
 167
 168         printf("\n*** Env vars ***\n");
 169
 170         printf("ethact = %s\n", ub_env_get("ethact"));
 171         printf("old fileaddr = %s\n", ub_env_get("fileaddr"));
 172         ub_env_set("fileaddr", "deadbeef");
 173         printf("new fileaddr = %s\n", ub_env_get("fileaddr"));
 174
 175         const char *env = NULL;
 176
 177         while ((env = ub_env_enum(env)) != NULL)
 178                 printf("%s = %s\n", env, ub_env_get(env));
 179
 180         /* reset */
 181         ub_reset();
 182         printf("\nHmm, reset returned...?!\n");
 183
 184         return rv;
 185 }
 186
 187 void test_dump_sig(struct api_signature *sig)
 188 {
 189         printf("signature:\n");
 190         printf("  version\t= %d\n", sig->version);
 191         printf("  checksum\t= 0x%08x\n", sig->checksum);
 192         printf("  sc entry\t= 0x%08x\n", (unsigned int)sig->syscall);
 193 }
 194
 195 void test_dump_si(struct sys_info *si)
 196 {
 197         int i;
 198
 199         printf("sys info:\n");
 200         printf("  clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus);
 201         printf("  clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu);
 202         printf("  bar\t\t= 0x%08x\n", (unsigned int)si->bar);
 203
 204         printf("---\n");
 205         for (i = 0; i < si->mr_no; i++) {
 206                 if (si->mr[i].flags == 0)
 207                         break;
 208
 209                 printf("  start\t= 0x%08lx\n", si->mr[i].start);
 210                 printf("  size\t= 0x%08lx\n", si->mr[i].size);
 211
 212                 switch(si->mr[i].flags & 0x000F) {
 213                         case MR_ATTR_FLASH:
 214                                 printf("  type FLASH\n");
 215                                 break;
 216                         case MR_ATTR_DRAM:
 217                                 printf("  type DRAM\n");
 218                                 break;
 219                         case MR_ATTR_SRAM:
 220                                 printf("  type SRAM\n");
 221                                 break;
 222                         default:
 223                                 printf("  type UNKNOWN\n");
 224                 }
 225                 printf("---\n");
 226         }
 227 }
 228
 229 static char *test_stor_typ(int type)
 230 {
 231         if (type & DT_STOR_IDE)
 232                 return "IDE";
 233
 234         if (type & DT_STOR_MMC)
 235                 return "MMC";
 236
 237         if (type & DT_STOR_SATA)
 238                 return "SATA";
 239
 240         if (type & DT_STOR_SCSI)
 241                 return "SCSI";
 242
 243         if (type & DT_STOR_USB)
 244                 return "USB";
 245
 246         return "Unknown";
 247 }
 248
 249 void test_dump_buf(void *buf, int len)
 250 {
 251         int i;
 252         int line_counter = 0;
 253         int sep_flag = 0;
 254         int addr = 0;
 255
 256         printf("%07x:\t", addr);
 257
 258         for (i = 0; i < len; i++) {
 259                 if (line_counter++ > 15) {
 260                         line_counter = 0;
 261                         sep_flag = 0;
 262                         addr += 16;
 263                         i--;
 264                         printf("\n%07x:\t", addr);
 265                         continue;
 266                 }
 267
 268                 if (sep_flag++ > 1) {
 269                         sep_flag = 1;
 270                         printf(" ");
 271                 }
 272
 273                 printf("%02x", *((char *)buf++));
 274         }
 275
 276         printf("\n");
 277 }
 278
 279 void test_dump_di(int handle)
 280 {
 281         int i;
 282         struct device_info *di = ub_dev_get(handle);
 283
 284         printf("device info (%d):\n", handle);
 285         printf("  cookie\t= 0x%08x\n", (uint32_t)di->cookie);
 286         printf("  type\t\t= 0x%08x\n", di->type);
 287
 288         if (di->type == DEV_TYP_NET) {
 289                 printf("  hwaddr\t= ");
 290                 for (i = 0; i < 6; i++)
 291                         printf("%02x ", di->di_net.hwaddr[i]);
 292
 293                 printf("\n");
 294
 295         } else if (di->type & DEV_TYP_STOR) {
 296                 printf("  type\t\t= %s\n", test_stor_typ(di->type));
 297                 printf("  blk size\t\t= %d\n", (unsigned int)di->di_stor.block_size);
 298                 printf("  blk count\t\t= %d\n", (unsigned int)di->di_stor.block_count);
 299         }
 300 }