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wifi: esp_at: use 'gpio_dt_spec' instead of 'modem_pin'

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Move away from 'modem_pin' abstraction as it has not obvious value compared
to generic 'gpio_dt_spec'.

Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
This commit is contained in:
Marcin Niestroj 2022-05-13 18:58:05 +02:00 • committed by Carles Cufí
commit 9ec661b206
2 changed files with 46 additions and 31 deletions
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76
drivers/wifi/esp_at/esp.c
View file

@ -29,27 +29,12 @@ LOG_MODULE_REGISTER(wifi_esp_at, CONFIG_WIFI_LOG_LEVEL);
#include "esp.h"
/* pin settings */
enum modem_control_pins {
struct esp_config {
#if DT_INST_NODE_HAS_PROP(0, power_gpios)
ESP_POWER,
const struct gpio_dt_spec power;
#endif
#if DT_INST_NODE_HAS_PROP(0, reset_gpios)
ESP_RESET,
#endif
NUM_PINS,
};
static struct modem_pin modem_pins[] = {
#if DT_INST_NODE_HAS_PROP(0, power_gpios)
MODEM_PIN(DT_INST_GPIO_LABEL(0, power_gpios),
DT_INST_GPIO_PIN(0, power_gpios),
DT_INST_GPIO_FLAGS(0, power_gpios) | GPIO_OUTPUT_INACTIVE),
#endif
#if DT_INST_NODE_HAS_PROP(0, reset_gpios)
MODEM_PIN(DT_INST_GPIO_LABEL(0, reset_gpios),
DT_INST_GPIO_PIN(0, reset_gpios),
DT_INST_GPIO_FLAGS(0, reset_gpios) | GPIO_OUTPUT_INACTIVE),
const struct gpio_dt_spec reset;
#endif
};
@ -65,6 +50,14 @@ struct k_thread esp_rx_thread;
K_KERNEL_STACK_DEFINE(esp_workq_stack,
CONFIG_WIFI_ESP_AT_WORKQ_STACK_SIZE);
static const struct esp_config esp_driver_config = {
#if DT_INST_NODE_HAS_PROP(0, power_gpios)
.power = GPIO_DT_SPEC_INST_GET(0, power_gpios),
#endif
#if DT_INST_NODE_HAS_PROP(0, reset_gpios)
.reset = GPIO_DT_SPEC_INST_GET(0, reset_gpios),
#endif
};
struct esp_data esp_driver_data;
static void esp_configure_hostname(struct esp_data *data)
@ -1044,27 +1037,33 @@ static void esp_init_work(struct k_work *work)
net_if_up(dev->net_iface);
}
static int esp_reset(struct esp_data *dev)
static int esp_reset(const struct device *dev)
{
if (net_if_is_up(dev->net_iface)) {
net_if_down(dev->net_iface);
struct esp_data *data = dev->data;
if (net_if_is_up(data->net_iface)) {
net_if_down(data->net_iface);
}
#if DT_INST_NODE_HAS_PROP(0, power_gpios)
modem_pin_write(&dev->mctx, ESP_POWER, 0);
const struct esp_config *config = dev->config;
gpio_pin_set_dt(&config->power, 0);
k_sleep(K_MSEC(100));
modem_pin_write(&dev->mctx, ESP_POWER, 1);
gpio_pin_set_dt(&config->power, 1);
#elif DT_INST_NODE_HAS_PROP(0, reset_gpios)
modem_pin_write(&dev->mctx, ESP_RESET, 1);
const struct esp_config *config = dev->config;
gpio_pin_set_dt(&config->reset, 1);
k_sleep(K_MSEC(100));
modem_pin_write(&dev->mctx, ESP_RESET, 0);
gpio_pin_set_dt(&config->reset, 0);
#else
int ret;
int retries = 3;
while (retries--) {
ret = modem_cmd_send(&dev->mctx.iface, &dev->mctx.cmd_handler,
NULL, 0, "AT+RST", &dev->sem_if_ready,
ret = modem_cmd_send(&data->mctx.iface, &data->mctx.cmd_handler,
NULL, 0, "AT+RST", &data->sem_if_ready,
K_MSEC(CONFIG_WIFI_ESP_AT_RESET_TIMEOUT));
if (ret == 0 || ret != -ETIMEDOUT) {
break;
@ -1101,12 +1100,15 @@ static int esp_init(const struct device *dev);
* function. An `extern` declaration does not work as the struct is static.
*/
NET_DEVICE_DT_INST_OFFLOAD_DEFINE(0, esp_init, NULL,
&esp_driver_data, NULL,
&esp_driver_data, &esp_driver_config,
CONFIG_WIFI_INIT_PRIORITY, &esp_api,
ESP_MTU);
static int esp_init(const struct device *dev)
{
#if DT_INST_NODE_HAS_PROP(0, power_gpios) || DT_INST_NODE_HAS_PROP(0, reset_gpios)
const struct esp_config *config = dev->config;
#endif
struct esp_data *data = dev->data;
int ret = 0;
@ -1160,8 +1162,20 @@ static int esp_init(const struct device *dev)
}
/* pin setup */
data->mctx.pins = modem_pins;
data->mctx.pins_len = ARRAY_SIZE(modem_pins);
#if DT_INST_NODE_HAS_PROP(0, power_gpios)
ret = gpio_pin_configure_dt(&config->power, GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
LOG_ERR("Failed to configure %s pin", "power");
goto error;
}
#endif
#if DT_INST_NODE_HAS_PROP(0, reset_gpios)
ret = gpio_pin_configure_dt(&config->reset, GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
LOG_ERR("Failed to configure %s pin", "reset");
goto error;
}
#endif
data->mctx.driver_data = data;
@ -1184,7 +1198,7 @@ static int esp_init(const struct device *dev)
data->net_iface = NET_IF_GET(Z_DEVICE_DT_DEV_NAME(DT_DRV_INST(0)), 0);
/* Reset the modem */
ret = esp_reset(data);
ret = esp_reset(dev);
error:
return ret;