add threshold handling
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c053654089
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4f3dcb258f
@ -36,6 +36,9 @@
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#include "logging.h"
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#include "unixsocket.h"
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/* eeprom parameters / thresholds & defaults */
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#include "../eeprom.h"
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#define DEFAULT_CONFIG "alix-usvd.conf"
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#define DEFAULT_LOGFILE "alix-usvd.log"
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#define DEFAULT_SOCKET "alix-usvd.sock"
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@ -64,6 +67,12 @@ enum {
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STATE_POWEROFF = 0x10,
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};
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enum {
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I2CDEV_ERR = -1,
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I2CDEV_UNKNOWN = 0,
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I2CDEV_OK = 1,
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};
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static struct option opts[] = {
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{"nofork", 0, 0, 'd'},
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{"config", 1, 0, 'c'},
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@ -96,11 +105,11 @@ static int i2cdev_open(const char *i2c_device, int i2c_address)
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return fd;
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}
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static int i2cdev_open_wrap(void)
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static int alix_open(void)
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{
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static const char *i2c_device;
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static int i2c_address;
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static int i2c_last_opened;
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static int i2c_status = I2CDEV_UNKNOWN;
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if (i2c_device == NULL) {
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i2c_device = config_get_string("global", "i2c-device", "/dev/i2c-0");
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@ -109,20 +118,84 @@ static int i2cdev_open_wrap(void)
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int dev = i2cdev_open(i2c_device, i2c_address);
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if (dev < 0) {
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if (i2c_last_opened != -1)
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if (i2c_status != I2CDEV_ERR)
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log_print(LOG_WARN, "failed to open %s:0x%02x", i2c_device, i2c_address);
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i2c_last_opened = -1;
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i2c_status = I2CDEV_ERR;
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return -1;
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}
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if (i2c_last_opened < 1)
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if (i2c_status != I2CDEV_OK)
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log_print(LOG_INFO, "successfully opened %s:0x%02x", i2c_device, i2c_address);
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i2c_last_opened = 1;
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i2c_status = I2CDEV_OK;
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return dev;
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}
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static int check_thresholds(void)
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{
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int dev = alix_open();
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if (dev < 0)
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return -1;
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struct ee_param defaults = DEFAULT_PARAMETERS;
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struct ee_param config;
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config.uin_loss = config_get_int("thresholds", "uin_loss" , defaults.uin_loss);
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config.uin_restore = config_get_int("thresholds", "uin_restore" , defaults.uin_restore);
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config.ubat_full = config_get_int("thresholds", "ubat_full" , defaults.ubat_full);
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config.ubat_low = config_get_int("thresholds", "ubat_low" , defaults.ubat_low);
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config.ubat_critical = config_get_int("thresholds", "ubat_critical" , defaults.ubat_critical);
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config.ibat_full = config_get_int("thresholds", "ibat_full" , defaults.ibat_full);
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struct ee_param device;
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device.uin_loss = i2c_smbus_read_word_data(dev, REG_UIN_LOSS);
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device.uin_restore = i2c_smbus_read_word_data(dev, REG_UIN_RESTORE);
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device.ubat_full = i2c_smbus_read_word_data(dev, REG_UBAT_FULL);
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device.ubat_low = i2c_smbus_read_word_data(dev, REG_UBAT_LOW);
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device.ubat_critical = i2c_smbus_read_word_data(dev, REG_UBAT_CRIT);
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device.ibat_full = i2c_smbus_read_word_data(dev, REG_IBAT_FULL);
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device.crc16 = 0x0000;
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int changed = 0;
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if (device.uin_loss != config.uin_loss) {
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i2c_smbus_write_word_data(dev, REG_UIN_LOSS, config.uin_loss);
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changed = 1;
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}
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if (device.uin_restore != config.uin_restore) {
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i2c_smbus_write_word_data(dev, REG_UIN_RESTORE, config.uin_restore);
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changed = 1;
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}
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if (device.ubat_full != config.ubat_full) {
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i2c_smbus_write_word_data(dev, REG_UBAT_FULL, config.ubat_full);
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changed = 1;
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}
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if (device.ubat_low != config.ubat_low) {
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i2c_smbus_write_word_data(dev, REG_UBAT_LOW, config.ubat_low);
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changed = 1;
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}
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if (device.ubat_critical != config.ubat_critical) {
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i2c_smbus_write_word_data(dev, REG_UBAT_CRIT, config.ubat_critical);
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changed = 1;
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}
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if (device.ibat_full != config.ibat_full) {
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i2c_smbus_write_word_data(dev, REG_IBAT_FULL, config.ibat_full);
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changed = 1;
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}
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if (changed == 1)
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i2c_smbus_write_word_data(dev, REG_CRC, 0x0000);
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close(dev);
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return changed;
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}
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static char * state2str(int state)
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{
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switch (state) {
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@ -167,9 +240,9 @@ static int str2state(char *buf)
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return state;
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}
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static int usv_state = -1;
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static int alix_state = -1;
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static void check_state(int old_state, int new_state)
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static void alix_state_change(int old_state, int new_state)
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{
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log_print(LOG_INFO, "usv state changed: %s => %s", state2str(old_state), state2str(new_state));
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/* TODO: send email */
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@ -182,18 +255,18 @@ static int unix_read_cb(int fd, void *privdata)
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if (len < 0)
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return -1;
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int dev = i2cdev_open_wrap();
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int dev = alix_open();
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if (dev < 0)
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return 0;
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int new_state = str2state(buf);
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if (new_state != -1) {
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if (i2c_smbus_write_word_data(dev, REG_STATUS, new_state) == 0) {
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usv_state = new_state;
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log_print(LOG_INFO, "set state to %s", state2str(usv_state));
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alix_state = new_state;
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log_print(LOG_INFO, "set state to %s", state2str(alix_state));
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}
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int len = snprintf(buf, sizeof(buf), "%s", state2str(usv_state));
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int len = snprintf(buf, sizeof(buf), "%s", state2str(alix_state));
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write(fd, buf, len);
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} else if (strncmp(buf, "status", 6) == 0) {
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@ -208,9 +281,9 @@ static int unix_read_cb(int fd, void *privdata)
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adc_ubat = 0;
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adc_uin = 0;
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} else if (new_state != usv_state) {
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check_state(usv_state, new_state);
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usv_state = new_state;
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} else if (new_state != alix_state) {
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alix_state_change(alix_state, new_state);
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alix_state = new_state;
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}
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int len = snprintf(buf, sizeof(buf), "%s:%d:%d:%d",
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@ -237,7 +310,7 @@ static int unix_accept_cb(int fd, void *privdata)
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static int status_interval(void *privdata)
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{
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int dev = i2cdev_open_wrap();
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int dev = alix_open();
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if (dev < 0)
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return 0;
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@ -247,9 +320,9 @@ static int status_interval(void *privdata)
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return 0;
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}
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if (new_state != usv_state) {
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check_state(usv_state, new_state);
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usv_state = new_state;
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if (new_state != alix_state) {
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alix_state_change(alix_state, new_state);
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alix_state = new_state;
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}
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close(dev);
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@ -268,6 +341,7 @@ int main(int argc, char *argv[])
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case 'd': /* debug */
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debug = 1;
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break;
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case 'c': /* configfile path */
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config = optarg;
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break;
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@ -296,6 +370,8 @@ int main(int argc, char *argv[])
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exit(1);
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if (debug == 0) {
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/* TODO: check PID-file */
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/* start logging */
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const char *logfile = config_get_string("global", "logfile", DEFAULT_LOGFILE);
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if (log_init(logfile) < 0)
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@ -321,11 +397,12 @@ int main(int argc, char *argv[])
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struct timeval tv = { .tv_sec = interval, .tv_usec = 0 };
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event_add_timeout(&tv, status_interval, NULL);
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int dev = i2cdev_open_wrap();
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if (dev != -1) {
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/* TODO: check thresholds */
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close(dev);
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}
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int tmp = check_thresholds();
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if (tmp < 0)
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log_print(LOG_WARN, "unable to check thresholds");
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else if (tmp == 1)
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log_print(LOG_INFO, "updated thresholds");
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event_loop();
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return 0;
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@ -17,5 +17,5 @@ uin_loss 12000
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uin_restore 14000
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ubat_full 13300
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ubat_low 12000
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ubat_crit 11000
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ubat_critical 11000
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ibat_full 150
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