luckfox-eng29
8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
/*
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* Copyright (c) 2022 rockchip
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*
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*/
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#include <dirent.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "iio.h"
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#include "rk_sysfs.h"
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static int calc_digits(int num)
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{
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int count = 0;
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while (num != 0) {
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num /= 10;
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count++;
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}
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return count;
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}
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int iio_find_type_by_name(const char *name, const char *type)
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{
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const struct dirent *ent;
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int number, numstrlen, ret;
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FILE *namefp;
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DIR *dp;
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char thisname[IIO_MAX_NAME_LENGTH];
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char *filename;
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dp = opendir(IIO_SYSFS_PATH);
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if (!dp) {
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fprintf(stderr, "No industrialio devices available\n");
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return -ENODEV;
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}
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while (ent = readdir(dp), ent) {
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if (strcmp(ent->d_name, ".") != 0 &&
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strcmp(ent->d_name, "..") != 0 &&
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strlen(ent->d_name) > strlen(type) &&
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strncmp(ent->d_name, type, strlen(type)) == 0) {
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errno = 0;
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ret = sscanf(ent->d_name + strlen(type), "%d", &number);
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if (ret < 0) {
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ret = -errno;
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fprintf(stderr,
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"failed to read element number\n");
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goto error_close_dir;
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} else if (ret != 1) {
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ret = -EIO;
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fprintf(stderr,
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"failed to match element number\n");
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goto error_close_dir;
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}
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numstrlen = calc_digits(number);
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/* verify the next character is not a colon */
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if (strncmp(ent->d_name + strlen(type) + numstrlen,
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":", 1) != 0) {
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filename = (char *)malloc(strlen(IIO_SYSFS_PATH)
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+ strlen(type) + numstrlen + 6);
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if (!filename) {
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ret = -ENOMEM;
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goto error_close_dir;
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}
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ret = sprintf(filename, "%s%s%d/name",
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IIO_SYSFS_PATH, type, number);
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if (ret < 0) {
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free(filename);
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goto error_close_dir;
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}
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namefp = fopen(filename, "r");
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if (!namefp) {
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free(filename);
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continue;
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}
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free(filename);
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errno = 0;
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if (fscanf(namefp, "%s", thisname) != 1) {
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ret = errno ? -errno : -ENODATA;
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goto error_close_dir;
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}
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if (fclose(namefp)) {
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ret = -errno;
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goto error_close_dir;
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}
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if (strcmp(name, thisname) == 0) {
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if (closedir(dp) == -1)
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return -errno;
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return number;
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}
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}
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}
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}
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if (closedir(dp) == -1)
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return -errno;
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return -ENODEV;
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error_close_dir:
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if (closedir(dp) == -1)
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perror("find_type_by_name(): Failed to close directory");
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return ret;
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}
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