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u-boot/examples/api/demo.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2008 Semihalf
*
* Written by: Rafal Jaworowski <raj@semihalf.com>
*/
#include <common.h>
#include <env.h>
#include <linux/types.h>
#include <api_public.h>
#include "glue.h"
#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
#define BUF_SZ 2048
#define WAIT_SECS 5
void test_dump_buf(void *, int);
void test_dump_di(int);
void test_dump_si(struct sys_info *);
void test_dump_sig(struct api_signature *);
static char buf[BUF_SZ];
int main(int argc, char *const argv[])
{
int rv = 0, h, i, j, devs_no;
struct api_signature *sig = NULL;
ulong start, now;
struct device_info *di;
lbasize_t rlen;
struct display_info disinfo;
if (!api_search_sig(&sig))
return -1;
syscall_ptr = sig->syscall;
if (syscall_ptr == NULL)
return -2;
if (sig->version > API_SIG_VERSION)
return -3;
printf("API signature found @%x\n", (unsigned int)sig);
test_dump_sig(sig);
printf("\n*** Consumer API test ***\n");
printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr,
(unsigned int)&syscall_ptr);
/* console activities */
ub_putc('B');
printf("*** Press any key to continue ***\n");
printf("got char 0x%x\n", ub_getc());
/* system info */
test_dump_si(ub_get_sys_info());
/* timing */
printf("\n*** Timing - wait a couple of secs ***\n");
start = ub_get_timer(0);
printf("\ntime: start %lu\n\n", start);
for (i = 0; i < WAIT_SECS; i++)
for (j = 0; j < 1000; j++)
ub_udelay(1000); /* wait 1 ms */
/* this is the number of milliseconds that passed from ub_get_timer(0) */
now = ub_get_timer(start);
printf("\ntime: now %lu\n\n", now);
/* enumerate devices */
printf("\n*** Enumerate devices ***\n");
devs_no = ub_dev_enum();
printf("Number of devices found: %d\n", devs_no);
if (devs_no == 0)
return -1;
printf("\n*** Show devices ***\n");
for (i = 0; i < devs_no; i++) {
test_dump_di(i);
printf("\n");
}
printf("\n*** Operations on devices ***\n");
/* test opening a device already opened */
h = 0;
if ((rv = ub_dev_open(h)) != 0) {
errf("open device %d error %d\n", h, rv);
return -1;
}
if ((rv = ub_dev_open(h)) != 0)
errf("open device %d error %d\n", h, rv);
ub_dev_close(h);
/* test storage */
printf("Trying storage devices...\n");
for (i = 0; i < devs_no; i++) {
di = ub_dev_get(i);
if (di->type & DEV_TYP_STOR)
break;
}
if (i == devs_no)
printf("No storage devices available\n");
else {
memset(buf, 0, BUF_SZ);
if ((rv = ub_dev_open(i)) != 0)
errf("open device %d error %d\n", i, rv);
else if ((rv = ub_dev_read(i, buf, 1, 0, &rlen)) != 0)
errf("could not read from device %d, error %d\n", i, rv);
else {
printf("Sector 0 dump (512B):\n");
test_dump_buf(buf, 512);
}
ub_dev_close(i);
}
/* test networking */
printf("Trying network devices...\n");
for (i = 0; i < devs_no; i++) {
di = ub_dev_get(i);
if (di->type == DEV_TYP_NET)
break;
}
if (i == devs_no)
printf("No network devices available\n");
else {
if ((rv = ub_dev_open(i)) != 0)
errf("open device %d error %d\n", i, rv);
else if ((rv = ub_dev_send(i, &buf, 2048)) != 0)
errf("could not send to device %d, error %d\n", i, rv);
ub_dev_close(i);
}
if (ub_dev_close(h) != 0)
errf("could not close device %d\n", h);
printf("\n*** Env vars ***\n");
printf("ethact = %s\n", ub_env_get("ethact"));
printf("old fileaddr = %s\n", ub_env_get("fileaddr"));
ub_env_set("fileaddr", "deadbeef");
printf("new fileaddr = %s\n", ub_env_get("fileaddr"));
const char *env = NULL;
while ((env = ub_env_enum(env)) != NULL)
printf("%s = %s\n", env, ub_env_get(env));
printf("\n*** Display ***\n");
if (ub_display_get_info(DISPLAY_TYPE_LCD, &disinfo)) {
printf("LCD info: failed\n");
} else {
printf("LCD info:\n");
printf(" pixel width: %d\n", disinfo.pixel_width);
printf(" pixel height: %d\n", disinfo.pixel_height);
printf(" screen rows: %d\n", disinfo.screen_rows);
printf(" screen cols: %d\n", disinfo.screen_cols);
}
if (ub_display_get_info(DISPLAY_TYPE_VIDEO, &disinfo)) {
printf("video info: failed\n");
} else {
printf("video info:\n");
printf(" pixel width: %d\n", disinfo.pixel_width);
printf(" pixel height: %d\n", disinfo.pixel_height);
printf(" screen rows: %d\n", disinfo.screen_rows);
printf(" screen cols: %d\n", disinfo.screen_cols);
}
printf("*** Press any key to continue ***\n");
printf("got char 0x%x\n", ub_getc());
/*
* This only clears messages on screen, not on serial port. It is
* equivalent to a no-op if no display is available.
*/
ub_display_clear();
/* reset */
printf("\n*** Resetting board ***\n");
ub_reset();
printf("\nHmm, reset returned...?!\n");
return rv;
}
void test_dump_sig(struct api_signature *sig)
{
printf("signature:\n");
printf(" version\t= %d\n", sig->version);
printf(" checksum\t= 0x%08x\n", sig->checksum);
printf(" sc entry\t= 0x%08x\n", (unsigned int)sig->syscall);
}
void test_dump_si(struct sys_info *si)
{
int i;
printf("sys info:\n");
printf(" clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus);
printf(" clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu);
printf(" bar\t\t= 0x%08x\n", (unsigned int)si->bar);
printf("---\n");
for (i = 0; i < si->mr_no; i++) {
if (si->mr[i].flags == 0)
break;
printf(" start\t= 0x%08lx\n", si->mr[i].start);
printf(" size\t= 0x%08lx\n", si->mr[i].size);
switch(si->mr[i].flags & 0x000F) {
case MR_ATTR_FLASH:
printf(" type FLASH\n");
break;
case MR_ATTR_DRAM:
printf(" type DRAM\n");
break;
case MR_ATTR_SRAM:
printf(" type SRAM\n");
break;
default:
printf(" type UNKNOWN\n");
}
printf("---\n");
}
}
static char *test_stor_typ(int type)
{
if (type & DT_STOR_IDE)
return "IDE";
if (type & DT_STOR_MMC)
return "MMC";
if (type & DT_STOR_SATA)
return "SATA";
if (type & DT_STOR_SCSI)
return "SCSI";
if (type & DT_STOR_USB)
return "USB";
return "Unknown";
}
void test_dump_buf(void *buf, int len)
{
int i;
int line_counter = 0;
int sep_flag = 0;
int addr = 0;
printf("%07x:\t", addr);
for (i = 0; i < len; i++) {
if (line_counter++ > 15) {
line_counter = 0;
sep_flag = 0;
addr += 16;
i--;
printf("\n%07x:\t", addr);
continue;
}
if (sep_flag++ > 1) {
sep_flag = 1;
printf(" ");
}
printf("%02x", *((char *)buf++));
}
printf("\n");
}
void test_dump_di(int handle)
{
int i;
struct device_info *di = ub_dev_get(handle);
printf("device info (%d):\n", handle);
printf(" cookie\t= 0x%08x\n", (uint32_t)di->cookie);
printf(" type\t\t= 0x%08x\n", di->type);
if (di->type == DEV_TYP_NET) {
printf(" hwaddr\t= ");
for (i = 0; i < 6; i++)
printf("%02x ", di->di_net.hwaddr[i]);
printf("\n");
} else if (di->type & DEV_TYP_STOR) {
printf(" type\t\t= %s\n", test_stor_typ(di->type));
printf(" blk size\t\t= %d\n", (unsigned int)di->di_stor.block_size);
printf(" blk count\t\t= %d\n", (unsigned int)di->di_stor.block_count);
}
}