| | |
| | | ********************************************************************************/ |
| | | |
| | | #include "lylib/logger.h" |
| | | #include "lylib/util_proc.h" |
| | | #include "gpio.h" |
| | | |
| | | #define RPI_GPIONAME "gpiochip0" |
| | |
| | | |
| | | int gpio_init(gpio_t *gpio) |
| | | { |
| | | int i; |
| | | int rv; |
| | | gpio_info_t *gpioinfo; |
| | | |
| | | s_gpio = gpio; |
| | | |
| | | if( !gpio ) |
| | | { |
| | | log_err("Invalid input arguments $gpio\n"); |
| | | return -1; |
| | | } |
| | | |
| | | s_gpio = gpio; |
| | | |
| | | if( !gpio->incnt && !gpio->outcnt ) |
| | | { |
| | | log_warn("WARNNING: No GPIO pins configured\n"); |
| | | return 0; |
| | | } |
| | | |
| | | /* gpiod open chip */ |
| | | s_chip = gpiod_chip_open_by_name(RPI_GPIONAME); |
| | | if( !s_chip ) |
| | | { |
| | | log_err("gpiod open chip failure, maybe you need running as root\n"); |
| | | return -2; |
| | | } |
| | | log_nrml("gpiod initialise open chip ok\n"); |
| | | |
| | | |
| | | /* gpiod request all output pins */ |
| | | for(i=0; i<gpio->outcnt; i++) |
| | | { |
| | | gpio->output[i].line = gpiod_chip_get_line(s_chip, gpio->output[i].pin); |
| | | if( !gpio->output[i].line ) |
| | | { |
| | | log_err("gpiod get line for '%s' pin[#%d] failure\n", gpio->output[i].name, gpio->output[i].pin ); |
| | | return -2; |
| | | } |
| | | |
| | | if( gpiod_line_request_output(gpio->output[i].line, gpio->output[i].name, !gpio->output[i].active_level) < 0 ) |
| | | { |
| | | log_err("gpiod request '%s' pin[#%d] output failure: %s\n", gpio->output[i].name, gpio->output[i].pin, strerror(errno)); |
| | | } |
| | | else |
| | | { |
| | | log_nrml("gpiod request '%s' pin[#%d] output ok\n", gpio->output[i].name, gpio->output[i].pin); |
| | | } |
| | | } |
| | | |
| | | |
| | | /* gpiod request all input pins */ |
| | | for(i=0; i<gpio->incnt; i++) |
| | | { |
| | | gpio->input[i].line = gpiod_chip_get_line(s_chip, gpio->input[i].pin); |
| | | if( !gpio->input[i].line ) |
| | | { |
| | | log_err("gpiod get line for '%s' pin[#%d] failure\n", gpio->input[i].name, gpio->input[i].pin ); |
| | | return -2; |
| | | } |
| | | |
| | | if( gpio->output[i].active_level ) |
| | | rv = gpiod_line_request_rising_edge_events(gpio->input[i].line, gpio->input[i].name) ; |
| | | else |
| | | rv = gpiod_line_request_falling_edge_events(gpio->input[i].line, gpio->input[i].name) ; |
| | | |
| | | if( rv < 0 ) |
| | | { |
| | | log_err("gpiod request '%s' pin[#%d] event edge [%s] failure: %s\n", |
| | | gpio->input[i].name, gpio->input[i].pin, gpio->output[i].active_level?"rising":"falling", strerror(errno)); |
| | | } |
| | | else |
| | | { |
| | | log_nrml("gpiod request '%s' pin[#%d] event edge [%s] ok\n", |
| | | gpio->input[i].name, gpio->input[i].pin, gpio->output[i].active_level?"rising":"falling"); |
| | | } |
| | | } |
| | | } |
| | | |
| | | |
| | | void gpio_term(void) |
| | | { |
| | | return ; |
| | | int i; |
| | | |
| | | log_nrml("start teriminated GPIO\n"); |
| | | |
| | | if( !s_gpio->incnt && !s_gpio->outcnt ) |
| | | { |
| | | return ; |
| | | } |
| | | |
| | | |
| | | for(i=0; i<s_gpio->outcnt; i++) |
| | | { |
| | | gpiod_line_release(s_gpio->output[i].line); |
| | | } |
| | | |
| | | |
| | | for(i=0; i<s_gpio->incnt; i++) |
| | | { |
| | | gpiod_line_release(s_gpio->input[i].line); |
| | | } |
| | | |
| | | gpiod_chip_close(s_chip); |
| | | } |
| | | |
| | | void gpio_out(char *name, int cmd) |
| | | void gpio_out(char *name, char *cmd) |
| | | { |
| | | int i; |
| | | int found = 0; |
| | |
| | | |
| | | if( !found ) |
| | | { |
| | | log_err("GPIO output for [%s] pin not found\n", name); |
| | | log_err("GPIO output for '%s' pin not found\n", name); |
| | | return ; |
| | | } |
| | | |
| | | if( OFF == cmd ) |
| | | if( strstr(cmd, "on") ) |
| | | { |
| | | gpiod_line_set_value(s_gpio->output[i].lines, s_gpio->output[i].active_level); |
| | | gpiod_line_set_value(s_gpio->output[i].line, s_gpio->output[i].active_level); |
| | | } |
| | | else |
| | | else if( strstr(cmd, "off") ) |
| | | { |
| | | gpiod_line_set_value(s_gpio->output[i].lines, !s_gpio->output[i].active_level); |
| | | gpiod_line_set_value(s_gpio->output[i].line, !s_gpio->output[i].active_level); |
| | | } |
| | | |
| | | return ; |
| | | } |
| | | |
| | | |
| | | #if 0 |
| | | /* Return value: 1(HIGH): Sombody detected 0(LOW): Nobody detected */ |
| | | int infrared_detect(void) |
| | | void *light_on_worker(void *arg) |
| | | { |
| | | struct gpiod_line_event event; |
| | | int i; |
| | | int found = 0; |
| | | char *name = (char *)arg; |
| | | gpio_info_t *gpiout; |
| | | |
| | | /* This function will block, must call it to setup */ |
| | | if( gpiod_line_event_wait(s_infrared_lines, NULL) < 0 ) |
| | | if( !name ) |
| | | { |
| | | //log_err("infrared gpiod line wait event failure!\n"); |
| | | return 0; |
| | | log_err("Invalid input arugment\n"); |
| | | return NULL; |
| | | } |
| | | |
| | | /* This function will block, must read to clear the event */ |
| | | if (gpiod_line_event_read(s_infrared_lines, &event) < 0) |
| | | { |
| | | log_err("gpiod line event read failure!\n"); |
| | | return 0; |
| | | if( s_gpio->light_intval <= 0 ) |
| | | { |
| | | log_err("Invalid light_intval value[%d] in configure file\n", s_gpio->light_intval); |
| | | return NULL; |
| | | } |
| | | |
| | | if (event.event_type == GPIOD_LINE_EVENT_RISING_EDGE) |
| | | return 1; |
| | | else |
| | | return 0; |
| | | for(i=0; i<s_gpio->outcnt; i++) |
| | | { |
| | | if( strstr(s_gpio->output[i].name, name) ) |
| | | { |
| | | gpiout = &(s_gpio->output[i]); |
| | | found = 1; |
| | | } |
| | | } |
| | | |
| | | if( !found ) |
| | | { |
| | | log_err("Light '%s' not found\n", name); |
| | | return NULL; |
| | | } |
| | | |
| | | log_nrml("Trun on %s for [%d] seconds\n", gpiout->name, s_gpio->light_intval); |
| | | |
| | | gpio_out(gpiout->name, "on"); |
| | | sleep(s_gpio->light_intval); |
| | | gpio_out(gpiout->name, "off"); |
| | | |
| | | return NULL; |
| | | } |
| | | |
| | | #endif |
| | | /* Return value: 0(LOW): Nobody detected, !0: indoor or hallway detected */ |
| | | int infrared_detect(void) |
| | | { |
| | | int i; |
| | | int rv = 0; |
| | | int res = 0; |
| | | |
| | | struct gpiod_line_event ev; |
| | | struct gpiod_line_bulk bulk, event_bulk; |
| | | struct gpiod_line *line; |
| | | |
| | | int num_lines = 0; |
| | | |
| | | |
| | | gpiod_line_bulk_init(&bulk); |
| | | |
| | | for(i=0; i<s_gpio->incnt; i++) |
| | | { |
| | | if( strstr(s_gpio->input[i].name, "infrared")) |
| | | { |
| | | gpiod_line_bulk_add(&bulk, s_gpio->input[i].line); |
| | | num_lines ++; |
| | | } |
| | | } |
| | | |
| | | if( !num_lines ) |
| | | { |
| | | log_err("No infrared detect gpiod lines found\n"); |
| | | return 0; |
| | | } |
| | | |
| | | log_dbg("infrared start detect event now...\n"); |
| | | rv = gpiod_line_event_wait_bulk(&bulk, NULL, &event_bulk); |
| | | if( rv <= 0 ) |
| | | { |
| | | log_err("infrared gpiod line wait[%s] event failure!\n", s_gpio->input[i].name); |
| | | return 0; |
| | | } |
| | | |
| | | for (i=0; i<num_lines; i++) |
| | | { |
| | | line = gpiod_line_bulk_get_line(&event_bulk, 0); |
| | | |
| | | /* must call this function to clear the event */ |
| | | rv = gpiod_line_event_read(line, &ev); |
| | | if( rv < 0) |
| | | { |
| | | log_err("gpiod_line_event_read get failure\n"); |
| | | break; |
| | | } |
| | | |
| | | for(i=0; i<s_gpio->incnt; i++) |
| | | { |
| | | if(line == s_gpio->input[i].line) |
| | | { |
| | | if( s_gpio->input[i].active_level != gpiod_line_get_value(line) ) |
| | | { |
| | | log_dbg("infrared '%s' detect get wrong power level\n", s_gpio->input[i].name); |
| | | continue; |
| | | } |
| | | |
| | | if( strstr(s_gpio->input[i].name, "indoor") ) |
| | | { |
| | | log_dbg("indoor infrared gpiod wait get event.\n", s_gpio->input[i].name); |
| | | res |= FLAG_INFRARED_INDOOR; |
| | | } |
| | | else if( strstr(s_gpio->input[i].name, "hallway") ) |
| | | { |
| | | log_dbg("hallway infrared gpiod wait get event.\n", s_gpio->input[i].name); |
| | | res |= FLAG_INFRARED_HALLWAY; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | |
| | | return res; |
| | | } |
| | | |
| | | |