From 7a0488541f68d1a9eb712a4eb5c6c36da150bc4a Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Fri, 23 Apr 2021 22:43:13 +0800
Subject: [PATCH] update iotd and test infared ok
---
iotd/hal/gpio.c | 239 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 213 insertions(+), 26 deletions(-)
diff --git a/iotd/hal/gpio.c b/iotd/hal/gpio.c
index e50ae3b..73340a6 100644
--- a/iotd/hal/gpio.c
+++ b/iotd/hal/gpio.c
@@ -12,6 +12,7 @@
********************************************************************************/
#include "lylib/logger.h"
+#include "lylib/util_proc.h"
#include "gpio.h"
#define RPI_GPIONAME "gpiochip0"
@@ -21,21 +22,112 @@
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;
@@ -51,47 +143,142 @@
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;
+}
+
+
--
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