From 41afcf96992f38d2fa7eeebe9210f406139dc729 Mon Sep 17 00:00:00 2001 From: wyl <1749595616@qq.com> Date: Mon, 24 Jun 2024 16:57:46 +0800 Subject: [PATCH 1/2] =?UTF-8?q?=E7=AC=AC=E4=B8=80=E5=A4=A9=E4=BD=9C?= =?UTF-8?q?=E4=B8=9A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 5/main.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 5/main.c diff --git a/5/main.c b/5/main.c new file mode 100644 index 0000000..0f5c32c --- /dev/null +++ b/5/main.c @@ -0,0 +1,61 @@ +#include + +/* 1990年1月1日 是星期一 */ + +// 将闰年的判断封装成函数 +int isLeapYear(int year) +{ + return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0); +} + +// 返回从1月1日到输入月份1日之间的天数 +int getMonthdays(int month, int leap) +{ + int days = 0; + int monthdays[] = {31,28+!!leap,31,30,31,30,31,31,30,31,30,31}; //若leap大于1,两次取反为1 + for (int i = 0; i < month; i++) + { + days += monthdays[i]; + } + return days; +} + +int main() +{ + int year, month, day, week, leap; + int sum = 0; + int i; + //test + + scanf("%d/%d/%d", &year, &month, &day); + + for (i = 1990; i < year; i++) + { + if (isLeapYear) + { + sum += 366; + } + else + { + sum += 365; + } + } + + if (isLeapYear) + { + leap = 1; + } + else + { + leap = 0; + } + + sum += getMonthdays(month, leap); + sum += day; + week = sum % 7; + + char * weekday[] = {"日", "一", "二", "三", "四", "五", "六"}; + + printf("%d年%d月%d日是星期%s\n", year, month, day, weekday[week]); + return 0; +} \ No newline at end of file -- Gitee From 6a792c59d73f7becb698cd15a5622779d2b99dee Mon Sep 17 00:00:00 2001 From: wyl <1749595616@qq.com> Date: Sat, 29 Jun 2024 18:35:43 +0800 Subject: [PATCH 2/2] =?UTF-8?q?6=E6=9C=8828=E6=97=A5=E5=92=8C29=E6=97=A5?= =?UTF-8?q?=E4=BD=9C=E4=B8=9A=EF=BC=8C=E7=94=A8=E6=8C=89=E9=94=AE=E6=8E=A7?= =?UTF-8?q?=E5=88=B6=E5=BD=95=E9=9F=B3=E5=92=8C=E9=9F=B3=E9=87=8F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 5/key.c | 243 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 243 insertions(+) create mode 100644 5/key.c diff --git a/5/key.c b/5/key.c new file mode 100644 index 0000000..669ff99 --- /dev/null +++ b/5/key.c @@ -0,0 +1,243 @@ +#include // 包含libgpiod库的头文件 +#include // 包含标准输入输出库 +#include // 包含UNIX标准库，用于usleep函数 +#include +#include +#include +#include "record.h" +#include "control.h" + + +#define GPIO_LINE 9 // 定义GPIO线的编号，这里是PF9 +#define VOLUME_UP_LINE 8 // 音量加按键连接到GPIOF线8 +#define VOLUME_DOWN_LINE 7 // 音量减按键连接到GPIOF线7 + +// 录音相关变量 + snd_pcm_t *capture = NULL; + snd_pcm_uframes_t period; + char *buffer = NULL; + FILE *pcm_file = NULL; + int recording = 0; + + // 音量设置相关变量 + long volume = 0; // 初始音量 + long volume_step = 10; // 每次调整的音量步长 + +// 录音开始函数 +void start_recording() +{ + capture = record_start("hw:0,1", SND_PCM_FORMAT_S16_LE, 2, 44100, &period); + if (!capture) + { + fprintf(stderr, "Failed to start recording\n"); + return; + } + + buffer = (char *)malloc(snd_pcm_frames_to_bytes(capture, period)); + if (!buffer) + { + perror("malloc"); + record_stop(capture); + capture = NULL; + return; + } + + pcm_file = fopen("output.pcm", "wb"); + if (!pcm_file) + { + perror("Error opening output file"); + free(buffer); + record_stop(capture); + capture = NULL; + return; + } + + recording = 1; + printf("Recording started\n"); +} + +// 录音停止函数 +void stop_recording() +{ + if (recording && capture) + { + recording = 0; + + free(buffer); + buffer = NULL; + + fclose(pcm_file); + pcm_file = NULL; + + record_stop(capture); + capture = NULL; + + printf("Recording stopped\n"); + } +} + +int main(void) +{ + // 按键引脚相关变量 + struct gpiod_chip *chip; // 定义指向GPIO芯片的指针 + struct gpiod_line *line; // 定义指向GPIO线的指针 + struct gpiod_line *volume_up; + struct gpiod_line *volume_down; + int value, last_value; // 定义当前值和上一次的值，用于检测状态变化 + int value_up, last_value_up; + int value_down, last_value_down; + + // 打开GPIO芯片 + chip = gpiod_chip_open_by_label("GPIOF"); + if (!chip) + { + perror("打开GPIO芯片失败"); + return 1; + } + + // 获取GPIO线 + line = gpiod_chip_get_line(chip, GPIO_LINE); + if (!line) + { + perror("获取GPIO线失败"); + gpiod_chip_close(chip); + return 1; + } + + volume_up = gpiod_chip_get_line(chip, VOLUME_UP_LINE); + if (!volume_up) + { + perror("获取GPIO线失败"); + gpiod_chip_close(chip); + return 1; + } + + volume_down = gpiod_chip_get_line(chip, VOLUME_DOWN_LINE); + if (!volume_down) + { + perror("获取GPIO线失败"); + gpiod_chip_close(chip); + return 1; + } + + // 将GPIO线设置为输入模式 + if (gpiod_line_request_input(line, "key1")) + { + perror("请求将GPIO线设置为输入模式失败"); + gpiod_chip_close(chip); + return 1; + } + + if (gpiod_line_request_input(volume_up, "key3")) + { + perror("请求将GPIO线设置为输入模式失败"); + gpiod_chip_close(chip); + return 1; + } + + if (gpiod_line_request_input(volume_down, "key2")) + { + perror("请求将GPIO线设置为输入模式失败"); + gpiod_chip_close(chip); + return 1; + } + + // 获取初始的GPIO线值 + last_value = gpiod_line_get_value(line); + last_value_up = gpiod_line_get_value(volume_up); + last_value_down = gpiod_line_get_value(volume_down); + + // 无限循环检测GPIO线值的变化 + while (1) + { + // 获取当前的GPIO线值 + value = gpiod_line_get_value(line); + value_up = gpiod_line_get_value(volume_up); + value_down = gpiod_line_get_value(volume_down); + + // 如果当前值与上一次的值不同，说明按键状态发生了变化 + if (value != last_value) + { + // 如果当前值为0，表示按键被按下 + if (value == 0) + { + printf("key1 pressed\n"); + start_recording(); + } + // 如果当前值为1，表示按键被释放 + else + { + printf("key1 released\n"); + stop_recording(); + } + + // 更新上一次的值为当前值 + last_value = value; + } + + if (value_up != last_value_up) + { + if (value_up == 0) + { + printf("key3 pressed\n"); + volume = get_playback_volume("hw:0", "Analog"); + set_playback_volume("hw:0", "Analog", volume + volume_step); + printf("当前音量：%ld\n", volume + volume_step); + } + else + { + printf("key3 released\n"); + + } + + last_value_up = value_up; + } + + if (value_down != last_value_down) + { + if (value_down == 0) + { + printf("key2 pressed\n"); + volume = get_playback_volume("hw:0", "Analog"); + set_playback_volume("hw:0", "Analog", volume - volume_step); + printf("当前音量：%ld\n", volume - volume_step); + } + else + { + printf("key2 released\n"); + + } + + last_value_down = value_down; + } + + // 如果正在录音，继续写入数据 + if (recording) + { + snd_pcm_sframes_t frames = snd_pcm_readi(capture, buffer, period); + if (frames < 0) + { + if (frames == -EPIPE) + { + fprintf(stderr, "XRUN.\n"); + snd_pcm_prepare(capture); + } + else + { + fprintf(stderr, "Error from read: %s\n", snd_strerror(frames)); + } + } + else + { + fwrite(buffer, snd_pcm_frames_to_bytes(capture, frames), 1, pcm_file); + } + } + + // 延时100毫秒，防止检测过于频繁 + //usleep(100000); + } + + // 关闭GPIO芯片 + gpiod_chip_close(chip); + return 0; +} \ No newline at end of file -- Gitee