/** @brief This function handles client driver suspend
*
* @param dev A pointer to device structure
* @return BT_STATUS_SUCCESS or BT_STATUS_FAILURE
*/
int
bt_sdio_suspend(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
mmc_pm_flag_t pm_flags = 0;
bt_private *priv = NULL;
struct sdio_mmc_card *cardp;
struct hci_dev *hcidev;
ENTER();
if (func) {
pm_flags = sdio_get_host_pm_caps(func);
PRINTM(CMD, "%s: suspend: PM flags = 0x%x\n", sdio_func_id(func),
pm_flags);
if (!(pm_flags & MMC_PM_KEEP_POWER)) {
PRINTM(ERROR, "%s: cannot remain alive while host is suspended\n",
sdio_func_id(func));
return -ENOSYS;
}
cardp = sdio_get_drvdata(func);
if (!cardp || !cardp->priv) {
PRINTM(ERROR, "Card or priv structure is not valid\n");
LEAVE();
return BT_STATUS_SUCCESS;
}
} else {
PRINTM(ERROR, "sdio_func is not specified\n");
LEAVE();
return BT_STATUS_SUCCESS;
}
PRINTM(CMD, "SDIO suspend\n");
priv = cardp->priv;
if ((pm_keep_power) && (priv->adapter->hs_state != HS_ACTIVATED))
bt_enable_hs(priv);
hcidev = priv->bt_dev.hcidev;
mbt_hci_suspend_dev(hcidev);
skb_queue_purge(&priv->adapter->tx_queue);
LEAVE();
/* We will keep the power when hs enabled successfully */
if ((pm_keep_power) && (priv->adapter->hs_state == HS_ACTIVATED))
#ifdef MMC_PM_SKIP_RESUME_PROBE
return sdio_set_host_pm_flags(func,
MMC_PM_KEEP_POWER |
MMC_PM_SKIP_RESUME_PROBE);
#else
return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
#endif
else
return BT_STATUS_SUCCESS;
/** @brief This function handles client driver suspend
*
* @param dev A pointer to device structure
* @return BT_STATUS_SUCCESS or other error no.
*/
int
bt_sdio_suspend(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
mmc_pm_flag_t pm_flags = 0;
bt_private *priv = NULL;
struct sdio_mmc_card *cardp;
struct m_dev *m_dev = NULL;
ENTER();
pm_flags = sdio_get_host_pm_caps(func);
PRINTM(CMD, "BT: %s: suspend: PM flags = 0x%x\n", sdio_func_id(func),
pm_flags);
if (!(pm_flags & MMC_PM_KEEP_POWER)) {
PRINTM(ERROR,
"BT: %s: cannot remain alive while host is suspended\n",
sdio_func_id(func));
return -ENOSYS;
}
cardp = sdio_get_drvdata(func);
if (!cardp || !cardp->priv) {
PRINTM(ERROR, "BT: Card or priv structure is not valid\n");
LEAVE();
return BT_STATUS_SUCCESS;
}
priv = cardp->priv;
if ((mbt_pm_keep_power) && (priv->adapter->hs_state != HS_ACTIVATED)) {
/* disable FM event mask */
if ((priv->bt_dev.m_dev[FM_SEQ].dev_type == FM_TYPE) &&
test_bit(HCI_RUNNING, &(priv->bt_dev.m_dev[FM_SEQ].flags)))
fm_set_intr_mask(priv, FM_DISABLE_INTR_MASK);
if (BT_STATUS_SUCCESS != bt_enable_hs(priv)) {
PRINTM(CMD, "BT: HS not actived, suspend fail!\n");
if (BT_STATUS_SUCCESS != bt_enable_hs(priv)) {
PRINTM(CMD,
"BT: HS not actived the second time, force to suspend!\n");
}
}
}
m_dev = &(priv->bt_dev.m_dev[BT_SEQ]);
PRINTM(CMD, "BT %s: SDIO suspend\n", m_dev->name);
mbt_hci_suspend_dev(m_dev);
skb_queue_purge(&priv->adapter->tx_queue);
priv->adapter->is_suspended = TRUE;
LEAVE();
/* We will keep the power when hs enabled successfully */
if ((mbt_pm_keep_power) && (priv->adapter->hs_state == HS_ACTIVATED)) {
#ifdef MMC_PM_SKIP_RESUME_PROBE
PRINTM(CMD, "BT: suspend with MMC_PM_KEEP_POWER and "
"MMC_PM_SKIP_RESUME_PROBE\n");
return sdio_set_host_pm_flags(func,
MMC_PM_KEEP_POWER |
MMC_PM_SKIP_RESUME_PROBE);
#else
PRINTM(CMD, "BT: suspend with MMC_PM_KEEP_POWER\n");
return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
#endif
} else {
PRINTM(CMD, "BT: suspend without MMC_PM_KEEP_POWER\n");
return BT_STATUS_SUCCESS;
}
}
