/**
* @brief Hardware de-initialization
*
* The function will restore original pinshare value and deactivate GPIO pins.
*
* @param dev pointer to structure of device data
* @return 0 on success, negative errno on error
*/
static int tsb_spi_hw_deinit(struct device *dev) {
struct tsb_spi_info *info = NULL;
uint32_t pinshare = 0;
int i = 0;
/* check input parameters */
if (!dev || !device_get_private(dev)) {
return -EINVAL;
}
info = device_get_private(dev);
/* release GPIO pins */
for (i = 0; i < info->caps.csnum; i++) {
gpio_deactivate(info->chipselect[i]);
}
gpio_deactivate(SPI_SDO);
gpio_deactivate(SPI_SDI);
gpio_deactivate(SPI_SCK);
/* restore pinshare#5 setting */
pinshare = tsb_get_pinshare() & TSB_PIN_GPIO10; /* current setting */
if ((info->pinshare & TSB_PIN_GPIO10)) {
if (!pinshare) {
tsb_set_pinshare(TSB_PIN_GPIO10);
}
} else {
if (pinshare) {
tsb_clr_pinshare(TSB_PIN_GPIO10);
}
}
return 0;
}
int ara_key_enable(const struct ara_board_info *info,
int (*longpress_callback)(void *priv), bool enable)
{
if (enable) {
if (!info->ara_key_configured) {
dbg_error("%s: no ara key gpio defined\n", __func__);
return -EINVAL;
}
the_ara_key.longpress_callback = longpress_callback;
the_ara_key.db.gpio = info->ara_key_gpio;
the_ara_key.db.ms = ARA_KEY_DEBOUNCE_TIME_MS;
the_ara_key.db.isr = ara_key_irqhandler;
the_ara_key.db.db_state = DB_ST_INVALID;
the_ara_key.rising_edge = info->ara_key_rising_edge;
gpio_activate(info->ara_key_gpio);
gpio_direction_in(info->ara_key_gpio);
gpio_irq_mask(info->ara_key_gpio);
gpio_irq_settriggering(info->ara_key_gpio, IRQ_TYPE_EDGE_BOTH);
gpio_irq_attach(info->ara_key_gpio, ara_key_irqhandler);
} else {
gpio_irq_mask(info->ara_key_gpio);
gpio_deactivate(info->ara_key_gpio);
}
return OK;
}
static uint8_t gb_vibrator_vibrator_off(struct gb_operation *operation)
{
// Deactivate the GPIO line, somehow.
gpio_activate(GB_VIBRATOR_DUMMY_GPIO);
gpio_set_value(GB_VIBRATOR_DUMMY_GPIO, 0);
gpio_deactivate(GB_VIBRATOR_DUMMY_GPIO);
return GB_OP_SUCCESS;
}
static uint8_t gb_vibrator_vibrator_on(struct gb_operation *operation)
{
struct gb_vibrator_on_request *request =
gb_operation_get_request_payload(operation);
if (gb_operation_get_request_payload_size(operation) < sizeof(*request)) {
gb_error("dropping short message\n");
return GB_OP_INVALID;
}
gpio_activate(GB_VIBRATOR_DUMMY_GPIO);
gpio_set_value(GB_VIBRATOR_DUMMY_GPIO, 1);
usleep(le16_to_cpu(request->timeout_ms));
gpio_deactivate(GB_VIBRATOR_DUMMY_GPIO);
return GB_OP_SUCCESS;
}
/**
* Deinit the USB3813 hub
*
* Deactivate the GPIO line
*
* @param dev Device
*/
static void usb3813_close(struct device *dev)
{
gpio_deactivate(HUB_LINE_N_RESET);
}