Initial commit

.gitignore

@@ -0,0 +1,33 @@
+*.o
+dist
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+/.idea

Makefile

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+CC=arm-hisiv300-linux-gcc
+USER_CFLAGS=-march=armv5te -mcpu=arm926ej-s -I/opt/hisi-linux/x86-arm/arm-hisiv300-linux/target/usr/include -L/opt/hisi-linux/x86-arm/arm-hisiv300-linux/target/usr/lib
+USER_LDFLAGS=
+AR=arm-hisiv300-linux-ar
+RANLIB=arm-hisiv300-linux-ranlib
+STRIP=arm-hisiv300-linux-strip
+
+TARGET = led
+
+BUILD_DIR =   dist
+SRC_DIR =     src
+INCLUDE_DIR = include
+
+CFLAGS = -Os 
+LIBS = 
+
+.PHONY: default all clean directories
+
+default: directories $(TARGET)
+all: default
+
+OBJECTS = $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o, $(wildcard $(SRC_DIR)/*.c))
+SOURCES = $(wildcard $(SRC_DIR)/*.c)
+HEADERS = $(wildcard $(INCLUDE_DIR)/*.h)
+
+$(OBJECTS): $(SOURCES) $(HEADERS)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+.PRECIOUS: $(TARGET) $(OBJECTS)
+
+$(TARGET): $(OBJECTS)
+	$(CC) $(OBJECTS) -Wall $(LIBS) -o $(BUILD_DIR)/$@
+	$(STRIP) $(BUILD_DIR)/$(TARGET)
+
+directories:
+	mkdir -p $(BUILD_DIR)
+
+clean:
+	rm -f $(BUILD_DIR)/*.o
+	rm -f $(BUILD_DIR)/$(TARGET)

README.md

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+## Led Control for Xiaomi's YI Home cameras
+
+Simple LED (light-emitting diode) control interface on `cpld_periph` kernel module for YI Home camera 
+
+Supported cams:
+* 720p 47US
+
+## Build
+
+```sh
+$ cd yi-home-led
+$ make
+```
+
+### Usage
+```sh
+Usage: led <options>
+
+Options:
+        -b[fast|slow|pulse|on|off]  Blue led mode
+        -y[fast|slow|on|off]        Yellow led mode
+        -l[on|off]                  Light on/off
+
+Example: led -bon -lon
+```

include/led.h

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+int32_t DEVICE_NUM = 0x70;
+
+int32_t open_cpld();
+void run2(int32_t fd, int offset);

src/led.c

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+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "../include/led.h"
+
+int32_t open_cpld() {
+    int32_t fd;
+    if (access("/dev/cpld_periph", F_OK) == 0) {
+        fd = open("/dev/cpld_periph", O_RDWR);
+    } else {
+        fd = -1;
+    }
+    return fd;
+}
+
+void usage() {
+    puts("Led Control v0.1\n\nUsage: led <options>\n\nOptions: \n\t-b[fast|slow|pulse|on|off]  Blue led mode\n\t-y[fast|slow|on|off]        Yellow led mode\n\t-l[on|off]                  Light on/off   \n\nExample: led -bon -lon\n");
+}
+
+void run2(int32_t fd, int offset) {
+    ioctl(fd, (DEVICE_NUM << 8) + offset );
+}
+
+int main(int argc, char *argv[]) {
+    if (argc <= 1) {
+        usage();
+        return 1;
+    }
+
+    int32_t fd = open_cpld();
+	if (fd < 0) {
+        puts("Error: cannot open /dev/cpld_periph");
+        return 1;
+    }
+
+    int opt;
+    while((opt = getopt(argc, argv, ":b:y:l:")) != -1)
+    {
+        switch (opt) {
+            case 'b':
+                if (strcmp(optarg, "on") == 0) {
+                    run2(fd, 0x0a);
+                    run2(fd, 0x01);
+                }
+
+                if (strcmp(optarg, "off") == 0) {
+                    run2(fd, 0x02);
+                }
+
+                if (strcmp(optarg, "fast") == 0) {
+                    run2(fd, 0x03);
+                }
+
+                if (strcmp(optarg, "slow") == 0) {
+                    run2(fd, 0x04);
+                }
+
+                if (strcmp(optarg, "pulse") == 0) {
+                    run2(fd, 0x05);
+                }
+                break;
+            case 'y':
+                if (strcmp(optarg, "on") == 0) {
+                    run2(fd, 0x09);
+                    run2(fd, 0x02);
+                }
+                if (strcmp(optarg, "fast") == 0) {
+                    run2(fd, 0x0b);
+                }
+
+                if (strcmp(optarg, "slow") == 0) {
+                    run2(fd, 0x0c);
+                }
+
+                if (strcmp(optarg, "off") == 0) {
+                    run2(fd, 0x0a);
+                }
+                break;
+            case 'l':
+                if (strcmp(optarg, "on") == 0) {
+                    run2(fd, 0x1c);
+                }
+                if (strcmp(optarg, "off") == 0) {
+                    run2(fd, 0x1b);
+                }
+                break;
+            case '?':
+                usage();
+                break;
+        }
+    }
+
+    return 0;
+}