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gpio: libgpiod 2.0: port gpio_get_{input,output}_line

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This commit is contained in:
marcin
2024-05-13 22:20:01 +02:00
parent b8ff1ef3d4
commit 88e85ae7c2
2 changed files with 48 additions and 30 deletions
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74
src/gpio.c
View File

@@ -103,36 +103,54 @@ int gpio_sequence_sleep(struct EG25Manager *manager)
return 0;
}
struct gpiod_line *gpio_get_output_line(struct EG25Manager *manager, int chip, int line)
{
struct gpiod_line *gpio_line;
struct gpiod_line_request *gpio_request_line(struct EG25Manager *manager, int chip, unsigned int line, enum gpiod_line_direction direction) {
struct gpiod_line_request *request = NULL;
struct gpiod_line_settings *settings;
struct gpiod_line_config *line_cfg;
struct gpiod_request_config *req_cfg;
int ret;
gpio_line = gpiod_chip_get_line(manager->gpiochip[chip], line);
if (!gpio_line)
settings = gpiod_line_settings_new();
if (!settings)
return NULL;
if (gpiod_line_request_output(gpio_line, "eg25manager", 0) < 0) {
gpiod_line_release(gpio_line);
return NULL;
}
gpiod_line_settings_set_direction(settings, direction);
return gpio_line;
line_cfg = gpiod_line_config_new();
if (!line_cfg)
goto free_settings;
ret = gpiod_line_config_add_line_settings(line_cfg, &line, 1, settings);
if (ret)
goto free_line_config;
req_cfg = gpiod_request_config_new();
if (!req_cfg)
goto free_line_config;
gpiod_request_config_set_consumer(req_cfg, "eg25-manager");
request = gpiod_chip_request_lines(manager->gpiochip[chip], req_cfg, line_cfg);
gpiod_request_config_free(req_cfg);
free_line_config:
gpiod_line_config_free(line_cfg);
free_settings:
gpiod_line_settings_free(settings);
return request;
}
struct gpiod_line *gpio_get_input_line(struct EG25Manager *manager, int chip, int line)
struct gpiod_line_request *gpio_request_output_line(struct EG25Manager *manager, int chip, unsigned int line)
{
struct gpiod_line *gpio_line;
return gpio_request_line(manager, chip, line, GPIOD_LINE_DIRECTION_OUTPUT);
}
gpio_line = gpiod_chip_get_line(manager->gpiochip[chip], line);
if (!gpio_line)
return NULL;
if (gpiod_line_request_input(gpio_line, "eg25manager") < 0) {
gpiod_line_release(gpio_line);
return NULL;
}
return gpio_line;
struct gpiod_line_request *gpio_request_input_line(struct EG25Manager *manager, int chip, unsigned int line)
{
return gpio_request_line(manager, chip, line, GPIOD_LINE_DIRECTION_INPUT);
}
static int gpio_chip_dir_filter(const struct dirent *entry)
@@ -274,7 +292,7 @@ int gpio_init(struct EG25Manager *manager, toml_table_t *config[])
if (!line.ok || line.u.i < 0 || line.u.i > gpiod_chip_num_lines(manager->gpiochip[chip.u.i]))
g_error("Wrong line ID for output GPIO '%s'", gpio_out_names[i]);
manager->gpio_out[i] = gpio_get_output_line(manager, chip.u.i, line.u.i);
manager->gpio_out[i] = gpio_request_output_line(manager, chip.u.i, line.u.i);
if (!manager->gpio_out[i])
g_error("Unable to get output GPIO %d", i);
}
@@ -298,7 +316,7 @@ int gpio_init(struct EG25Manager *manager, toml_table_t *config[])
if (!line.ok || line.u.i < 0 || line.u.i > gpiod_chip_num_lines(manager->gpiochip[chip.u.i]))
g_error("Wrong line ID for input GPIO '%s'", gpio_in_names[i]);
manager->gpio_in[i] = gpio_get_input_line(manager, chip.u.i, line.u.i);
manager->gpio_in[i] = gpio_request_input_line(manager, chip.u.i, line.u.i);
if (!manager->gpio_in[i])
g_error("Unable to get input GPIO %d", i);
}
@@ -326,7 +344,7 @@ int gpio_init(struct EG25Manager *manager, toml_table_t *config[])
chipidx = 1;
}
manager->gpio_out[i] = gpio_get_input_line(manager, chipidx, offset);
manager->gpio_out[i] = gpio_request_input_line(manager, chipidx, offset);
if (!manager->gpio_out[i])
g_error("Unable to get output GPIO %d", i);
}
@@ -343,7 +361,7 @@ int gpio_init(struct EG25Manager *manager, toml_table_t *config[])
chipidx = 1;
}
manager->gpio_in[i] = gpio_get_input_line(manager, chipidx, offset);
manager->gpio_in[i] = gpio_request_input_line(manager, chipidx, offset);
if (!manager->gpio_in[i])
g_error("Unable to get input GPIO %d", i);
}
@@ -374,12 +392,12 @@ void gpio_destroy(struct EG25Manager *manager)
for (i = 0; i < GPIO_OUT_COUNT; i++) {
if (manager->gpio_out[i])
gpiod_line_release(manager->gpio_out[i]);
gpiod_line_request_release(manager->gpio_out[i]);
}
for (i = 0; i < GPIO_IN_COUNT; i++) {
if (manager->gpio_in[i])
gpiod_line_release(manager->gpio_in[i]);
gpiod_line_request_release(manager->gpio_in[i]);
}
if (manager->gpiochip[0])

4
src/manager.h
View File

@@ -116,8 +116,8 @@ struct EG25Manager {
GUdevClient *udev;
struct gpiod_chip *gpiochip[2];
struct gpiod_line *gpio_out[5];
struct gpiod_line *gpio_in[2];
struct gpiod_line_request *gpio_out[5];
struct gpiod_line_request *gpio_in[2];
};
void modem_configure(struct EG25Manager *data);