/**
* @brief This function handles the interrupt.
*
* @param func A pointer to sdio_func structure
* @return N/A
*/
static void
sd_interrupt(struct sdio_func *func)
{
bt_private *priv;
struct m_dev *m_dev = NULL;
struct sdio_mmc_card *card;
int ret = BT_STATUS_SUCCESS;
u8 ireg = 0;
u8 host_intstatus_reg = HOST_INTSTATUS_REG;
ENTER();
card = sdio_get_drvdata(func);
if (!card || !card->priv) {
PRINTM(INFO,
"BT: %s: sbi_interrupt(%p) card or priv is NULL, card=%p\n",
__func__, func, card);
LEAVE();
return;
}
priv = card->priv;
m_dev = &(priv->bt_dev.m_dev[BT_SEQ]);
ireg = sdio_readb(card->func, host_intstatus_reg, &ret);
if (ret) {
PRINTM(ERROR,
"BT: sdio_read_ioreg: CMD52 read int status register failed %d\n",
ret);
goto done;
}
if (ireg != 0) {
/*
* DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
* Clear the interrupt status register and re-enable
* the interrupt
*/
PRINTM(INTR, "BT: INT %s: sdio_ireg = 0x%x\n", m_dev->name,
ireg);
priv->adapter->irq_recv = ireg;
sdio_writeb(card->func,
~(ireg) & (DN_LD_HOST_INT_STATUS |
UP_LD_HOST_INT_STATUS),
host_intstatus_reg, &ret);
if (ret) {
PRINTM(ERROR,
"BT: sdio_write_ioreg: clear int status register failed\n");
goto done;
}
} else {
PRINTM(ERROR, "BT: ERR: ireg=0\n");
}
OS_INT_DISABLE;
priv->adapter->sd_ireg |= ireg;
OS_INT_RESTORE;
bt_interrupt(m_dev);
done:
LEAVE();
}
/**
* @brief This function handles the interrupt.
*
* @param func A pointer to sdio_func structure
* @return n/a
*/
static void
sd_interrupt(struct sdio_func *func)
{
bt_private *priv;
struct hci_dev *hcidev;
struct sdio_mmc_card *card;
int ret = BT_STATUS_SUCCESS;
u8 ireg = 0;
ENTER();
card = sdio_get_drvdata(func);
if (!card || !card->priv) {
PRINTM(INFO, "%s: sbi_interrupt(%p) card or priv is NULL, card=%p\n",
__FUNCTION__, func, card);
LEAVE();
return;
}
priv = card->priv;
hcidev = priv->bt_dev.hcidev;
ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret);
if (ret) {
PRINTM(WARN, "sdio_read_ioreg: read int status register failed\n");
goto done;
}
if (ireg != 0) {
/*
* DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
* Clear the interrupt status register and re-enable the interrupt
*/
PRINTM(INTR, "INT dev%d: sdio_ireg = 0x%x\n", hcidev->id, ireg);
priv->adapter->irq_recv = ireg;
sdio_writeb(card->func,
~(ireg) & (DN_LD_HOST_INT_STATUS | UP_LD_HOST_INT_STATUS),
HOST_INTSTATUS_REG, &ret);
if (ret) {
PRINTM(WARN,
"sdio_write_ioreg: clear int status register failed\n");
goto done;
}
}
OS_INT_DISABLE;
priv->adapter->sd_ireg |= ireg;
OS_INT_RESTORE;
bt_interrupt(hcidev);
done:
LEAVE();
}