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; }