SD Command Handlers

Functions
static ERR_te	sd_cmd_list_handler (uint32_t argc, char **argv)
	CLI handler for the "list" command. Logs the names of all active SD card handles.
static ERR_te	sd_cmd_info_handler (uint32_t argc, char **argv)
	CLI handler for the "info" command. Logs detailed information about a named SD card handle.

Detailed Description

Function Documentation

sd_cmd_list_handler()

ERR_te sd_cmd_list_handler ( uint32_t argc, char ** argv )

static

CLI handler for the "list" command. Logs the names of all active SD card handles.

Expected invocation: sd list

Parameters

[in]	argc	Argument count. Must be exactly 2.
[in]	argv	Argument list: argv[0] = "sd", argv[1] = "list".

Returns

• ERR_OK on success
• ERR_INVALID_ARGUMENT if argc != 2

Definition at line 1761 of file sd.c.

                                                              {
    if(argc != 2) {
        LOG_ERROR(
            internal_state.subsys,
            internal_state.log_level,
            "sd_cmd_list_handler: invalid arguments"
        );
        return ERR_INVALID_ARGUMENT;
    }
 
    for(uint32_t i = 0; i < CONFIG_SD_MAX_OBJECTS; i++) {
        if(internal_state.sds[i].in_use == true) {
            LOG_INFO(
                internal_state.subsys,
                internal_state.log_level,
                "%s",
                internal_state.sds[i].name
            );
        }
    }
 
    return ERR_OK;
}

sd_cmd_info_handler()

ERR_te sd_cmd_info_handler ( uint32_t argc, char ** argv )

static

CLI handler for the "info" command. Logs detailed information about a named SD card handle.

Expected invocation: sd info <n>

Searches the pool for a handle whose name matches argv[2] and logs its type (SDSC/SDHC), addressing mode (byte/block), capacity in MB, block size in bytes, and block count.

Parameters

[in]	argc	Argument count. Must be exactly 3.
[in]	argv	Argument list: argv[0] = "sd", argv[1] = "info", argv[2] = SD card handle name.

Returns

• ERR_OK on success
• ERR_INVALID_ARGUMENT if argc != 3 or no handle with the given name exists

Definition at line 1803 of file sd.c.

                                                              {
    if(argc != 3) {
        LOG_ERROR(
            internal_state.subsys,
            internal_state.log_level,
            "sd_cmd_info_handler: invalid arguments"
        );
        return ERR_INVALID_ARGUMENT;
    }
 
    for(uint32_t i = 0; i < CONFIG_SD_MAX_OBJECTS; i++) {
        if(str_cmp(internal_state.sds[i].name, argv[2]) == true) {
            char type_str[10];
            char addr_mode[10];
 
            switch(internal_state.sds[i].type) {
                case SDSC: str_cpy(type_str, "SDSC", get_str_len("SDSC") + 1); break;
                case SDHC: str_cpy(type_str, "SDHC", get_str_len("SDHC") + 1); break;
            }
 
            switch(internal_state.sds[i].addr_mode) {
                case SD_ADDR_MODE_BLOCK: str_cpy(addr_mode, "block", get_str_len("block") + 1); break;
                case SD_ADDR_MODE_BYTE:  str_cpy(addr_mode, "byte",  get_str_len("byte")  + 1); break;
            }
 
            LOG_INFO(
                internal_state.subsys,
                internal_state.log_level,
                "type: %s, addr mode: %s, capacity: %d mb, block size: %d byte, block count: %d",
                type_str,
                addr_mode,
                internal_state.sds[i].capacity_mb,
                internal_state.sds[i].block_len,
                internal_state.sds[i].block_count
            );
 
            break;
        }
 
        if(i == CONFIG_SD_MAX_OBJECTS - 1) {
            LOG_ERROR(
                internal_state.subsys,
                internal_state.log_level,
                "sd_cmd_info_handler: no such handle"
            );
 
            return ERR_INVALID_ARGUMENT;
        }
    }
 
    return ERR_OK;
}

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