31 	struct platform_device	*musb;  member
35 static void tusb_musb_set_vbus(struct musb *musb, int is_on);
44 static u8 tusb_get_revision(struct musb *musb)  in tusb_get_revision()  argument
46 	void __iomem	*tbase = musb->ctrl_base;  in tusb_get_revision()
61 static void tusb_print_revision(struct musb *musb)  in tusb_print_revision()  argument
63 	void __iomem	*tbase = musb->ctrl_base;  in tusb_print_revision()
66 	rev = musb->tusb_revision;  in tusb_print_revision()
94 static void tusb_wbus_quirk(struct musb *musb, int enabled)  in tusb_wbus_quirk()  argument
96 	void __iomem	*tbase = musb->ctrl_base;  in tusb_wbus_quirk()
109 		dev_dbg(musb->controller, "Enabled tusb wbus quirk ctrl %08x ena %08x\n",  in tusb_wbus_quirk()
118 		dev_dbg(musb->controller, "Disabled tusb wbus quirk ctrl %08x ena %08x\n",  in tusb_wbus_quirk()
221 	struct musb *musb = hw_ep->musb;  in tusb_write_fifo()  local
228 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",  in tusb_write_fifo()
271 	struct musb *musb = hw_ep->musb;  in tusb_read_fifo()  local
276 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",  in tusb_read_fifo()
316 static struct musb *the_musb;
326 	struct musb	*musb = the_musb;  in tusb_draw_power()  local
327 	void __iomem	*tbase = musb->ctrl_base;  in tusb_draw_power()
340 	if (x->otg->default_a || mA < (musb->min_power << 1))  in tusb_draw_power()
345 		musb->is_bus_powered = 1;  in tusb_draw_power()
348 		musb->is_bus_powered = 0;  in tusb_draw_power()
353 	dev_dbg(musb->controller, "draw max %d mA VBUS\n", mA);  in tusb_draw_power()
361 static void tusb_set_clock_source(struct musb *musb, unsigned mode)  in tusb_set_clock_source()  argument
363 	void __iomem	*tbase = musb->ctrl_base;  in tusb_set_clock_source()
388 static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)  in tusb_allow_idle()  argument
390 	void __iomem	*tbase = musb->ctrl_base;  in tusb_allow_idle()
394 			&& (musb->tusb_revision == TUSB_REV_30))  in tusb_allow_idle()
395 		tusb_wbus_quirk(musb, 1);  in tusb_allow_idle()
397 	tusb_set_clock_source(musb, 0);  in tusb_allow_idle()
409 	if (is_host_active(musb)) {  in tusb_allow_idle()
419 	dev_dbg(musb->controller, "idle, wake on %02x\n", wakeup_enables);  in tusb_allow_idle()
425 static int tusb_musb_vbus_status(struct musb *musb)  in tusb_musb_vbus_status()  argument
427 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_vbus_status()
454 	struct musb	*musb = from_timer(musb, t, dev_timer);  in musb_do_idle()  local
457 	spin_lock_irqsave(&musb->lock, flags);  in musb_do_idle()
459 	switch (musb->xceiv->otg->state) {  in musb_do_idle()
461 		if ((musb->a_wait_bcon != 0)  in musb_do_idle()
462 			&& (musb->idle_timeout == 0  in musb_do_idle()
463 				|| time_after(jiffies, musb->idle_timeout))) {  in musb_do_idle()
464 			dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n",  in musb_do_idle()
465 					usb_otg_state_string(musb->xceiv->otg->state));  in musb_do_idle()
469 		tusb_musb_set_vbus(musb, 0);  in musb_do_idle()
474 	if (!musb->is_active) {  in musb_do_idle()
478 		if (is_host_active(musb) && (musb->port1_status >> 16))  in musb_do_idle()
481 		if (!musb->gadget_driver) {  in musb_do_idle()
489 		tusb_allow_idle(musb, wakeups);  in musb_do_idle()
492 	spin_unlock_irqrestore(&musb->lock, flags);  in musb_do_idle()
508 static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)  in tusb_musb_try_idle()  argument
517 	if (musb->is_active || ((musb->a_wait_bcon == 0)  in tusb_musb_try_idle()
518 			&& (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {  in tusb_musb_try_idle()
519 		dev_dbg(musb->controller, "%s active, deleting timer\n",  in tusb_musb_try_idle()
520 			usb_otg_state_string(musb->xceiv->otg->state));  in tusb_musb_try_idle()
521 		del_timer(&musb->dev_timer);  in tusb_musb_try_idle()
527 		if (!timer_pending(&musb->dev_timer))  in tusb_musb_try_idle()
530 			dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");  in tusb_musb_try_idle()
536 	dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",  in tusb_musb_try_idle()
537 		usb_otg_state_string(musb->xceiv->otg->state),  in tusb_musb_try_idle()
539 	mod_timer(&musb->dev_timer, timeout);  in tusb_musb_try_idle()
549 static void tusb_musb_set_vbus(struct musb *musb, int is_on)  in tusb_musb_set_vbus()  argument
551 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_set_vbus()
554 	struct usb_otg	*otg = musb->xceiv->otg;  in tusb_musb_set_vbus()
563 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);  in tusb_musb_set_vbus()
568 		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;  in tusb_musb_set_vbus()
572 		MUSB_HST_MODE(musb);  in tusb_musb_set_vbus()
581 			switch (musb->xceiv->otg->state) {  in tusb_musb_set_vbus()
584 				musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;  in tusb_musb_set_vbus()
587 				musb->xceiv->otg->state = OTG_STATE_A_IDLE;  in tusb_musb_set_vbus()
590 				musb->xceiv->otg->state = OTG_STATE_A_IDLE;  in tusb_musb_set_vbus()
592 			musb->is_active = 0;  in tusb_musb_set_vbus()
594 			MUSB_HST_MODE(musb);  in tusb_musb_set_vbus()
596 			musb->is_active = 0;  in tusb_musb_set_vbus()
598 			musb->xceiv->otg->state = OTG_STATE_B_IDLE;  in tusb_musb_set_vbus()
599 			MUSB_DEV_MODE(musb);  in tusb_musb_set_vbus()
610 	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);  in tusb_musb_set_vbus()
612 	dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",  in tusb_musb_set_vbus()
613 		usb_otg_state_string(musb->xceiv->otg->state),  in tusb_musb_set_vbus()
614 		musb_readb(musb->mregs, MUSB_DEVCTL),  in tusb_musb_set_vbus()
626 static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)  in tusb_musb_set_mode()  argument
628 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_set_mode()
656 		dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode);  in tusb_musb_set_mode()
676 tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)  in tusb_otg_ints()  argument
680 	struct usb_otg	*otg = musb->xceiv->otg;  in tusb_otg_ints()
687 		dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');  in tusb_otg_ints()
689 		tusb_musb_set_vbus(musb, default_a);  in tusb_otg_ints()
702 			musb->port1_status &=  in tusb_otg_ints()
711 				dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");  in tusb_otg_ints()
712 				if (musb->xceiv->otg->state != OTG_STATE_B_IDLE) {  in tusb_otg_ints()
714 					musb->xceiv->otg->state = OTG_STATE_B_IDLE;  in tusb_otg_ints()
715 					musb->int_usb |= MUSB_INTR_DISCONNECT;  in tusb_otg_ints()
717 				musb->is_active = 0;  in tusb_otg_ints()
719 			dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",  in tusb_otg_ints()
720 				usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
722 			schedule_delayed_work(&musb->irq_work, 0);  in tusb_otg_ints()
725 			dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",  in tusb_otg_ints()
726 				usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
728 			switch (musb->xceiv->otg->state) {  in tusb_otg_ints()
730 				dev_dbg(musb->controller, "Got SRP, turning on VBUS\n");  in tusb_otg_ints()
731 				musb_platform_set_vbus(musb, 1);  in tusb_otg_ints()
734 				if (musb->a_wait_bcon != 0)  in tusb_otg_ints()
735 					musb->is_active = 0;  in tusb_otg_ints()
737 					musb->is_active = 1;  in tusb_otg_ints()
755 				if (musb->vbuserr_retry) {  in tusb_otg_ints()
756 					musb->vbuserr_retry--;  in tusb_otg_ints()
757 					tusb_musb_set_vbus(musb, 1);  in tusb_otg_ints()
759 					musb->vbuserr_retry  in tusb_otg_ints()
761 					tusb_musb_set_vbus(musb, 0);  in tusb_otg_ints()
774 		dev_dbg(musb->controller, "%s timer, %03x\n",  in tusb_otg_ints()
775 			usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
777 		switch (musb->xceiv->otg->state) {  in tusb_otg_ints()
782 			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);  in tusb_otg_ints()
786 					dev_dbg(musb->controller, "devctl %02x\n", devctl);  in tusb_otg_ints()
789 				musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;  in tusb_otg_ints()
790 				musb->is_active = 0;  in tusb_otg_ints()
792 					+ msecs_to_jiffies(musb->a_wait_bcon);  in tusb_otg_ints()
796 				tusb_musb_set_vbus(musb, 0);  in tusb_otg_ints()
800 			if (musb->a_wait_bcon != 0)  in tusb_otg_ints()
802 					+ msecs_to_jiffies(musb->a_wait_bcon);  in tusb_otg_ints()
812 	schedule_delayed_work(&musb->irq_work, 0);  in tusb_otg_ints()
819 	struct musb	*musb = __hci;  in tusb_musb_interrupt()  local
820 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_interrupt()
824 	spin_lock_irqsave(&musb->lock, flags);  in tusb_musb_interrupt()
831 	dev_dbg(musb->controller, "TUSB IRQ %08x\n", int_src);  in tusb_musb_interrupt()
833 	musb->int_usb = (u8) int_src;  in tusb_musb_interrupt()
840 		if (musb->tusb_revision == TUSB_REV_30)  in tusb_musb_interrupt()
841 			tusb_wbus_quirk(musb, 0);  in tusb_musb_interrupt()
852 			dev_dbg(musb->controller, "TUSB NOR not ready\n");  in tusb_musb_interrupt()
856 		tusb_set_clock_source(musb, 1);  in tusb_musb_interrupt()
861 			musb->is_active = 1;  in tusb_musb_interrupt()
862 			schedule_delayed_work(&musb->irq_work, 0);  in tusb_musb_interrupt()
864 		dev_dbg(musb->controller, "wake %sactive %02x\n",  in tusb_musb_interrupt()
865 				musb->is_active ? "" : "in", reg);  in tusb_musb_interrupt()
871 		del_timer(&musb->dev_timer);  in tusb_musb_interrupt()
877 		idle_timeout = tusb_otg_ints(musb, int_src, tbase);  in tusb_musb_interrupt()
886 		dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src);  in tusb_musb_interrupt()
895 		musb->int_rx = (((musb_src >> 16) & 0xffff) << 1);  in tusb_musb_interrupt()
896 		musb->int_tx = (musb_src & 0xffff);  in tusb_musb_interrupt()
898 		musb->int_rx = 0;  in tusb_musb_interrupt()
899 		musb->int_tx = 0;  in tusb_musb_interrupt()
903 		musb_interrupt(musb);  in tusb_musb_interrupt()
909 	tusb_musb_try_idle(musb, idle_timeout);  in tusb_musb_interrupt()
912 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_interrupt()
924 static void tusb_musb_enable(struct musb *musb)  in tusb_musb_enable()  argument
926 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_enable()
950 	irq_set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);  in tusb_musb_enable()
968 static void tusb_musb_disable(struct musb *musb)  in tusb_musb_disable()  argument
970 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_disable()
980 	del_timer(&musb->dev_timer);  in tusb_musb_disable()
993 static void tusb_setup_cpu_interface(struct musb *musb)  in tusb_setup_cpu_interface()  argument
995 	void __iomem	*tbase = musb->ctrl_base;  in tusb_setup_cpu_interface()
1020 static int tusb_musb_start(struct musb *musb)  in tusb_musb_start()  argument
1022 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_start()
1027 	if (musb->board_set_power)  in tusb_musb_start()
1028 		ret = musb->board_set_power(1);  in tusb_musb_start()
1034 	spin_lock_irqsave(&musb->lock, flags);  in tusb_musb_start()
1042 	musb->tusb_revision = tusb_get_revision(musb);  in tusb_musb_start()
1043 	tusb_print_revision(musb);  in tusb_musb_start()
1044 	if (musb->tusb_revision < 2) {  in tusb_musb_start()
1046 				musb->tusb_revision);  in tusb_musb_start()
1055 	tusb_set_clock_source(musb, 1);  in tusb_musb_start()
1066 	tusb_setup_cpu_interface(musb);  in tusb_musb_start()
1077 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_start()
1082 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_start()
1084 	if (musb->board_set_power)  in tusb_musb_start()
1085 		musb->board_set_power(0);  in tusb_musb_start()
1090 static int tusb_musb_init(struct musb *musb)  in tusb_musb_init()  argument
1097 	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);  in tusb_musb_init()
1098 	if (IS_ERR_OR_NULL(musb->xceiv))  in tusb_musb_init()
1101 	pdev = to_platform_device(musb->controller);  in tusb_musb_init()
1105 	musb->async = mem->start;  in tusb_musb_init()
1114 	musb->sync = mem->start;  in tusb_musb_init()
1122 	musb->sync_va = sync;  in tusb_musb_init()
1127 	musb->mregs += TUSB_BASE_OFFSET;  in tusb_musb_init()
1129 	ret = tusb_musb_start(musb);  in tusb_musb_init()
1135 	musb->isr = tusb_musb_interrupt;  in tusb_musb_init()
1137 	musb->xceiv->set_power = tusb_draw_power;  in tusb_musb_init()
1138 	the_musb = musb;  in tusb_musb_init()
1140 	timer_setup(&musb->dev_timer, musb_do_idle, 0);  in tusb_musb_init()
1147 		usb_put_phy(musb->xceiv);  in tusb_musb_init()
1152 static int tusb_musb_exit(struct musb *musb)  in tusb_musb_exit()  argument
1154 	del_timer_sync(&musb->dev_timer);  in tusb_musb_exit()
1157 	if (musb->board_set_power)  in tusb_musb_exit()
1158 		musb->board_set_power(0);  in tusb_musb_exit()
1160 	iounmap(musb->sync_va);  in tusb_musb_exit()
1162 	usb_put_phy(musb->xceiv);  in tusb_musb_exit()
1203 	struct platform_device		*musb;  in tusb_probe()  local
1244 	glue->musb = musb = platform_device_register_full(&pinfo);  in tusb_probe()
1245 	if (IS_ERR(musb)) {  in tusb_probe()
1246 		ret = PTR_ERR(musb);  in tusb_probe()
1258 	platform_device_unregister(glue->musb);  in tusb_remove()