75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
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// Copyright 2020-2021 Beken
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "cli.h"
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#include "sys_hal.h"
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#include "bk_misc.h"
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static void cli_puf_help(void)
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{
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CLI_LOGI("puf {version|enrollment|read_uid}\r\n");
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}
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static void cli_puf_cmd(char *pcWriteBuffer, int xWriteBufferLen, int argc, char **argv)
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{
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if (argc < 2) {
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cli_puf_help();
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return;
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}
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/* power on */
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sys_ll_set_cpu_power_sleep_wakeup_pwd_encp(0);
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delay_ms(10);
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if (os_strcmp(argv[1], "version") == 0) {
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uint32_t puf_version = REG_READ(SOC_OTP_APB_BASE + 0x02c0);
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CLI_LOGI("PTM_VERSION:%x\r\n", puf_version);
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} else if (os_strcmp(argv[1], "enrollment") == 0) {
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bool puf_is_busy = true;
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uint32_t loop_cnt = 0;
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REG_WRITE(SOC_OTP_APB_BASE + 0x02e4, 0xa7);
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while (puf_is_busy && (loop_cnt < 1000000)) {
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puf_is_busy = REG_READ(SOC_OTP_APB_BASE + 0x02c4);
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loop_cnt++;
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}
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uint32_t puf_info_block = REG_READ(SOC_OTP_APB_BASE);
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/* PUF offset 0, bit[16:19] */
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uint32_t enrol_state = (puf_info_block >> 16) & 0xf;
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if (enrol_state == 0xf) {
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CLI_LOGI("PUF enrollment done\r\n");
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} else {
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CLI_LOGI("PUF incomplete enrollment\r\n");
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}
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} else if (os_strcmp(argv[1], "read_uid") == 0) {
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uint32_t uid = REG_READ(SOC_OTP_APB_BASE + 0x0300);
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CLI_LOGI("PUF uid:%x\r\n", uid);
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} else {
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cli_puf_help();
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return;
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}
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}
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#define PUF_CMD_CNT (sizeof(s_puf_commands) / sizeof(struct cli_command))
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static const struct cli_command s_puf_commands[] = {
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{"puf", "puf {version|enrollment|read_uid}", cli_puf_cmd},
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};
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int cli_puf_init(void)
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{
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return cli_register_commands(s_puf_commands, PUF_CMD_CNT);
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}
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