static irqreturn_t usbhs_interrupt(int irq, void *data)
{
struct usbhs_priv *priv = data;
struct usbhs_irq_state irq_state;
usbhs_status_get_each_irq(priv, &irq_state);
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
usbhs_write(priv, BRDYSTS, 0);
usbhs_write(priv, NRDYSTS, 0);
usbhs_write(priv, BEMPSTS, 0);
if (irq_state.intsts0 & VBINT)
usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
if (irq_state.intsts0 & DVST)
usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
if (irq_state.intsts0 & CTRT)
usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
if (irq_state.intsts0 & BEMP)
usbhs_mod_call(priv, irq_empty, priv, &irq_state);
if (irq_state.intsts0 & BRDY)
usbhs_mod_call(priv, irq_ready, priv, &irq_state);
if (irq_state.intsts1 & ATTCH)
usbhs_mod_call(priv, irq_attch, priv, &irq_state);
if (irq_state.intsts1 & DTCH)
usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
if (irq_state.intsts1 & SIGN)
usbhs_mod_call(priv, irq_sign, priv, &irq_state);
if (irq_state.intsts1 & SACK)
usbhs_mod_call(priv, irq_sack, priv, &irq_state);
return IRQ_HANDLED;
}
/*
* interrupt
*/
#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
static irqreturn_t usbhs_interrupt(int irq, void *data)
{
struct usbhs_priv *priv = data;
struct usbhs_irq_state irq_state;
usbhs_status_get_each_irq(priv, &irq_state);
/*
* clear interrupt
*
* The hardware is _very_ picky to clear interrupt bit.
* Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
*
* see
* "Operation"
* - "Control Transfer (DCP)"
* - Function :: VALID bit should 0
*/
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
usbhs_write(priv, BRDYSTS, 0);
usbhs_write(priv, NRDYSTS, 0);
usbhs_write(priv, BEMPSTS, 0);
/*
* call irq callback functions
* see also
* usbhs_irq_setting_update
*/
/* INTSTS0 */
if (irq_state.intsts0 & VBINT)
usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
if (irq_state.intsts0 & DVST)
usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
if (irq_state.intsts0 & CTRT)
usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
if (irq_state.intsts0 & BEMP)
usbhs_mod_call(priv, irq_empty, priv, &irq_state);
if (irq_state.intsts0 & BRDY)
usbhs_mod_call(priv, irq_ready, priv, &irq_state);
/* INTSTS1 */
if (irq_state.intsts1 & ATTCH)
usbhs_mod_call(priv, irq_attch, priv, &irq_state);
if (irq_state.intsts1 & DTCH)
usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
if (irq_state.intsts1 & SIGN)
usbhs_mod_call(priv, irq_sign, priv, &irq_state);
if (irq_state.intsts1 & SACK)
usbhs_mod_call(priv, irq_sack, priv, &irq_state);
return IRQ_HANDLED;
}
/*
* interrupt
*/
#define INTSTS0_MAGIC 0xF800 /* acknowledge magical interrupt sources */
#define INTSTS1_MAGIC 0xA870 /* acknowledge magical interrupt sources */
static irqreturn_t usbhs_interrupt(int irq, void *data)
{
struct usbhs_priv *priv = data;
struct usbhs_irq_state irq_state;
if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
return IRQ_NONE;
/*
* clear interrupt
*
* The hardware is _very_ picky to clear interrupt bit.
* Especially INTSTS0_MAGIC, INTSTS1_MAGIC value.
*
* see
* "Operation"
* - "Control Transfer (DCP)"
* - Function :: VALID bit should 0
*/
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
if (usbhs_mod_is_host(priv))
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
/*
* The driver should not clear the xxxSTS after the line of
* "call irq callback functions" because each "if" statement is
* possible to call the callback function for avoiding any side effects.
*/
if (irq_state.intsts0 & BRDY)
usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
if (irq_state.intsts0 & BEMP)
usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
/*
* call irq callback functions
* see also
* usbhs_irq_setting_update
*/
/* INTSTS0 */
if (irq_state.intsts0 & VBINT)
usbhs_mod_info_call(priv, irq_vbus, priv, &irq_state);
if (irq_state.intsts0 & DVST)
usbhs_mod_call(priv, irq_dev_state, priv, &irq_state);
if (irq_state.intsts0 & CTRT)
usbhs_mod_call(priv, irq_ctrl_stage, priv, &irq_state);
if (irq_state.intsts0 & BEMP)
usbhs_mod_call(priv, irq_empty, priv, &irq_state);
if (irq_state.intsts0 & BRDY)
usbhs_mod_call(priv, irq_ready, priv, &irq_state);
if (usbhs_mod_is_host(priv)) {
/* INTSTS1 */
if (irq_state.intsts1 & ATTCH)
usbhs_mod_call(priv, irq_attch, priv, &irq_state);
if (irq_state.intsts1 & DTCH)
usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
if (irq_state.intsts1 & SIGN)
usbhs_mod_call(priv, irq_sign, priv, &irq_state);
if (irq_state.intsts1 & SACK)
usbhs_mod_call(priv, irq_sack, priv, &irq_state);
}
return IRQ_HANDLED;
}