uboot/examples/api/demo.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2007-2008 Semihalf
   4 *
   5 * Written by: Rafal Jaworowski <raj@semihalf.com>
   6 */
   7
   8#include <common.h>
   9#include <linux/types.h>
  10#include <api_public.h>
  11
  12#include "glue.h"
  13
  14#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
  15
  16#define BUF_SZ          2048
  17#define WAIT_SECS       5
  18
  19void    test_dump_buf(void *, int);
  20void    test_dump_di(int);
  21void    test_dump_si(struct sys_info *);
  22void    test_dump_sig(struct api_signature *);
  23
  24static char buf[BUF_SZ];
  25
  26int main(int argc, char * const argv[])
  27{
  28        int rv = 0, h, i, j, devs_no;
  29        struct api_signature *sig = NULL;
  30        ulong start, now;
  31        struct device_info *di;
  32        lbasize_t rlen;
  33        struct display_info disinfo;
  34
  35        if (!api_search_sig(&sig))
  36                return -1;
  37
  38        syscall_ptr = sig->syscall;
  39        if (syscall_ptr == NULL)
  40                return -2;
  41
  42        if (sig->version > API_SIG_VERSION)
  43                return -3;
  44
  45        printf("API signature found @%x\n", (unsigned int)sig);
  46        test_dump_sig(sig);
  47
  48        printf("\n*** Consumer API test ***\n");
  49        printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr,
  50                (unsigned int)&syscall_ptr);
  51
  52        /* console activities */
  53        ub_putc('B');
  54
  55        printf("*** Press any key to continue ***\n");
  56        printf("got char 0x%x\n", ub_getc());
  57
  58        /* system info */
  59        test_dump_si(ub_get_sys_info());
  60
  61        /* timing */
  62        printf("\n*** Timing - wait a couple of secs ***\n");
  63        start = ub_get_timer(0);
  64        printf("\ntime: start %lu\n\n", start);
  65        for (i = 0; i < WAIT_SECS; i++)
  66                for (j = 0; j < 1000; j++)
  67                        ub_udelay(1000);        /* wait 1 ms */
  68
  69        /* this is the number of milliseconds that passed from ub_get_timer(0) */
  70        now = ub_get_timer(start);
  71        printf("\ntime: now %lu\n\n", now);
  72
  73        /* enumerate devices */
  74        printf("\n*** Enumerate devices ***\n");
  75        devs_no = ub_dev_enum();
  76
  77        printf("Number of devices found: %d\n", devs_no);
  78        if (devs_no == 0)
  79                return -1;
  80
  81        printf("\n*** Show devices ***\n");
  82        for (i = 0; i < devs_no; i++) {
  83                test_dump_di(i);
  84                printf("\n");
  85        }
  86
  87        printf("\n*** Operations on devices ***\n");
  88
  89        /* test opening a device already opened */
  90        h = 0;
  91        if ((rv = ub_dev_open(h)) != 0) {
  92                errf("open device %d error %d\n", h, rv);
  93                return -1;
  94        }
  95        if ((rv = ub_dev_open(h)) != 0)
  96                errf("open device %d error %d\n", h, rv);
  97
  98        ub_dev_close(h);
  99
 100        /* test storage */
 101        printf("Trying storage devices...\n");
 102        for (i = 0; i < devs_no; i++) {
 103                di = ub_dev_get(i);
 104
 105                if (di->type & DEV_TYP_STOR)
 106                        break;
 107
 108        }
 109        if (i == devs_no)
 110                printf("No storage devices available\n");
 111        else {
 112                memset(buf, 0, BUF_SZ);
 113
 114                if ((rv = ub_dev_open(i)) != 0)
 115                        errf("open device %d error %d\n", i, rv);
 116
 117                else if ((rv = ub_dev_read(i, buf, 1, 0, &rlen)) != 0)
 118                        errf("could not read from device %d, error %d\n", i, rv);
 119                else {
 120                        printf("Sector 0 dump (512B):\n");
 121                        test_dump_buf(buf, 512);
 122                }
 123
 124                ub_dev_close(i);
 125        }
 126
 127        /* test networking */
 128        printf("Trying network devices...\n");
 129        for (i = 0; i < devs_no; i++) {
 130                di = ub_dev_get(i);
 131
 132                if (di->type == DEV_TYP_NET)
 133                        break;
 134
 135        }
 136        if (i == devs_no)
 137                printf("No network devices available\n");
 138        else {
 139                if ((rv = ub_dev_open(i)) != 0)
 140                        errf("open device %d error %d\n", i, rv);
 141                else if ((rv = ub_dev_send(i, &buf, 2048)) != 0)
 142                        errf("could not send to device %d, error %d\n", i, rv);
 143
 144                ub_dev_close(i);
 145        }
 146
 147        if (ub_dev_close(h) != 0)
 148                errf("could not close device %d\n", h);
 149
 150        printf("\n*** Env vars ***\n");
 151
 152        printf("ethact = %s\n", ub_env_get("ethact"));
 153        printf("old fileaddr = %s\n", ub_env_get("fileaddr"));
 154        ub_env_set("fileaddr", "deadbeef");
 155        printf("new fileaddr = %s\n", ub_env_get("fileaddr"));
 156
 157        const char *env = NULL;
 158
 159        while ((env = ub_env_enum(env)) != NULL)
 160                printf("%s = %s\n", env, ub_env_get(env));
 161
 162        printf("\n*** Display ***\n");
 163
 164        if (ub_display_get_info(DISPLAY_TYPE_LCD, &disinfo)) {
 165                printf("LCD info: failed\n");
 166        } else {
 167                printf("LCD info:\n");
 168                printf("  pixel width:  %d\n", disinfo.pixel_width);
 169                printf("  pixel height: %d\n", disinfo.pixel_height);
 170                printf("  screen rows:  %d\n", disinfo.screen_rows);
 171                printf("  screen cols:  %d\n", disinfo.screen_cols);
 172        }
 173        if (ub_display_get_info(DISPLAY_TYPE_VIDEO, &disinfo)) {
 174                printf("video info: failed\n");
 175        } else {
 176                printf("video info:\n");
 177                printf("  pixel width:  %d\n", disinfo.pixel_width);
 178                printf("  pixel height: %d\n", disinfo.pixel_height);
 179                printf("  screen rows:  %d\n", disinfo.screen_rows);
 180                printf("  screen cols:  %d\n", disinfo.screen_cols);
 181        }
 182
 183        printf("*** Press any key to continue ***\n");
 184        printf("got char 0x%x\n", ub_getc());
 185
 186        /*
 187         * This only clears messages on screen, not on serial port. It is
 188         * equivalent to a no-op if no display is available.
 189         */
 190        ub_display_clear();
 191
 192        /* reset */
 193        printf("\n*** Resetting board ***\n");
 194        ub_reset();
 195        printf("\nHmm, reset returned...?!\n");
 196
 197        return rv;
 198}
 199
 200void test_dump_sig(struct api_signature *sig)
 201{
 202        printf("signature:\n");
 203        printf("  version\t= %d\n", sig->version);
 204        printf("  checksum\t= 0x%08x\n", sig->checksum);
 205        printf("  sc entry\t= 0x%08x\n", (unsigned int)sig->syscall);
 206}
 207
 208void test_dump_si(struct sys_info *si)
 209{
 210        int i;
 211
 212        printf("sys info:\n");
 213        printf("  clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus);
 214        printf("  clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu);
 215        printf("  bar\t\t= 0x%08x\n", (unsigned int)si->bar);
 216
 217        printf("---\n");
 218        for (i = 0; i < si->mr_no; i++) {
 219                if (si->mr[i].flags == 0)
 220                        break;
 221
 222                printf("  start\t= 0x%08lx\n", si->mr[i].start);
 223                printf("  size\t= 0x%08lx\n", si->mr[i].size);
 224
 225                switch(si->mr[i].flags & 0x000F) {
 226                        case MR_ATTR_FLASH:
 227                                printf("  type FLASH\n");
 228                                break;
 229                        case MR_ATTR_DRAM:
 230                                printf("  type DRAM\n");
 231                                break;
 232                        case MR_ATTR_SRAM:
 233                                printf("  type SRAM\n");
 234                                break;
 235                        default:
 236                                printf("  type UNKNOWN\n");
 237                }
 238                printf("---\n");
 239        }
 240}
 241
 242static char *test_stor_typ(int type)
 243{
 244        if (type & DT_STOR_IDE)
 245                return "IDE";
 246
 247        if (type & DT_STOR_MMC)
 248                return "MMC";
 249
 250        if (type & DT_STOR_SATA)
 251                return "SATA";
 252
 253        if (type & DT_STOR_SCSI)
 254                return "SCSI";
 255
 256        if (type & DT_STOR_USB)
 257                return "USB";
 258
 259        return "Unknown";
 260}
 261
 262void test_dump_buf(void *buf, int len)
 263{
 264        int i;
 265        int line_counter = 0;
 266        int sep_flag = 0;
 267        int addr = 0;
 268
 269        printf("%07x:\t", addr);
 270
 271        for (i = 0; i < len; i++) {
 272                if (line_counter++ > 15) {
 273                        line_counter = 0;
 274                        sep_flag = 0;
 275                        addr += 16;
 276                        i--;
 277                        printf("\n%07x:\t", addr);
 278                        continue;
 279                }
 280
 281                if (sep_flag++ > 1) {
 282                        sep_flag = 1;
 283                        printf(" ");
 284                }
 285
 286                printf("%02x", *((char *)buf++));
 287        }
 288
 289        printf("\n");
 290}
 291
 292void test_dump_di(int handle)
 293{
 294        int i;
 295        struct device_info *di = ub_dev_get(handle);
 296
 297        printf("device info (%d):\n", handle);
 298        printf("  cookie\t= 0x%08x\n", (uint32_t)di->cookie);
 299        printf("  type\t\t= 0x%08x\n", di->type);
 300
 301        if (di->type == DEV_TYP_NET) {
 302                printf("  hwaddr\t= ");
 303                for (i = 0; i < 6; i++)
 304                        printf("%02x ", di->di_net.hwaddr[i]);
 305
 306                printf("\n");
 307
 308        } else if (di->type & DEV_TYP_STOR) {
 309                printf("  type\t\t= %s\n", test_stor_typ(di->type));
 310                printf("  blk size\t\t= %d\n", (unsigned int)di->di_stor.block_size);
 311                printf("  blk count\t\t= %d\n", (unsigned int)di->di_stor.block_count);
 312        }
 313}
 314