/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2012-2018. All rights reserved.
 * Description: sample_lasdc.c
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <fcntl.h>
#include "uapi_lsadc.h"
#include "uapi_system.h"

static td_u32 g_channel = 0;
static int g_thread_should_stop = 0;
static td_u32 g_cur_value;

#define MAX_CHANNEL     15

static int check_params(void)
{
    uapi_sys_version version = {0};
    td_s32 ret;
    int maxChn = 4; /* defult the max channe is 4 */

    ret = uapi_sys_get_version(&version);
    if (ret != TD_SUCCESS) {
        printf("get chip version fail\n");
        return -1;
    }
    if (version.chip_name_id == UAPI_CHIP_NAME_RESERVED9 || version.chip_name_id == UAPI_CHIP_NAME_RESERVED13) {
        maxChn = MAX_CHANNEL;
    }
    if (g_channel > maxChn) {
        printf("channel error; Only Support 0 ~ %d channel\n", maxChn);
        return -1;
    }
    return 0;
}

/*lint -save -e715 */
td_void *lsadc_sample_thread(td_void *arg)
{
    td_u32 value = 0;
    if (arg != NULL) {
        printf("start lsadc_sample_thread with args:%p\n", arg);
    }
    while (!g_thread_should_stop) {
        uapi_lsadc_get_value(g_channel, &value);
        if (g_cur_value != value) {
            printf("Channel %d Value 0x%08x\n", g_channel, value);
            g_cur_value = value;
        }
    }

    return 0;
}

td_void sample_lsadc_set_config(td_void)
{
    td_s32 ret;
    td_u32 boardid = 0;
    uapi_lsadc_config config;
    uapi_sys_version version = {0};
    td_u32 mask = 0;
    td_u32 channel_mask = 0;

    ret = uapi_sys_get_version(&version);
    if (ret != TD_SUCCESS) {
        printf("get chip version fail\n");
        return;
    }

    ret = uapi_sys_get_board_id(&boardid);
    if (ret != TD_SUCCESS) {
        printf("get board id fail\n");
        return;
    }
    uapi_lsadc_get_config(&config);
    mask = (config.channel_mask | (0x1 << (g_channel % 4))); /* 4 groups */
    channel_mask = g_channel << 16 | mask; /* Support 16 channels */
    boardid &= 0x2000;
    if ((version.chip_name_id == UAPI_CHIP_NAME_RESERVED9 || version.chip_name_id == UAPI_CHIP_NAME_RESERVED8 ||
        version.chip_name_id == UAPI_CHIP_NAME_RESERVED13 || version.chip_name_id == UAPI_CHIP_NAME_RESERVED6) &&
        boardid != 0x2000) {
        config.channel_mask = channel_mask;
    } else {
        config.channel_mask = channel_mask;
        config.active_bit = 0xfc;
        config.data_delta = 0x8;
        config.deglitch_bypass = 0x1;
        config.glitch_sample = 0;
        config.lsadc_reset = 0;
        config.lsadc_zero = 0xff;
        config.model_sel = 0x1;
        config.power_down_mod = 0x0;
        config.time_scan = 600; /* lsacd chn scan time gap 600 us */
    }
    ret = uapi_lsadc_set_config(&config);
    if (ret != TD_SUCCESS) {
        printf("set config fail\n");
    }
}

td_s32 main(td_s32 argc, td_char *argv[])
{
    int ret;
    pthread_t thread;
    int c;

    /* Get param */
    if (argc == 2 && argv != NULL && argv[1] != NULL) { /* input 2 param */
        g_channel  = (td_u32)strtol(argv[1], NULL, 0);
    } else if (argv != NULL && argv[0] != NULL) {
        printf("Usage: %s [Channel]\n", argv[0]);
        printf("Example: %s 0\n", argv[0]);
        return TD_FAILURE;
    } else {
        return TD_FAILURE;
    }
    uapi_sys_init();
    /* Chech param */
    if (check_params() < 0) {
        return TD_FAILURE;
    }

    /* Open LSADC */
    ret = uapi_lsadc_init();
    if (ret != TD_SUCCESS) {
        printf("uapi_lsadc_init err, 0x%08x !\n", ret);
        return ret;
    }

    sample_lsadc_set_config();
    printf("Create lsadc sample thread, press q to exit!\n");
    ret = pthread_create(&thread, NULL, lsadc_sample_thread, NULL);
    if (ret < 0) {
        printf("Failt to create thread!");
        uapi_lsadc_deinit();
        uapi_sys_deinit();
        return TD_FAILURE;
    }
    while ((c = getchar()) != 'q') {
        sleep(3); /* sleep 3s */
    }

    g_thread_should_stop = 1;
    pthread_join(thread, NULL);
    printf("LSADC sample thread exit! Bye!\n");

    uapi_lsadc_deinit();
    uapi_sys_deinit();
    return TD_SUCCESS;
}