34 	struct platform_device	*musb;  member
38 static void tusb_musb_set_vbus(struct musb *musb, int is_on);
47 static u8 tusb_get_revision(struct musb *musb)  in tusb_get_revision()  argument
49 	void __iomem	*tbase = musb->ctrl_base;  in tusb_get_revision()
64 static void tusb_print_revision(struct musb *musb)  in tusb_print_revision()  argument
66 	void __iomem	*tbase = musb->ctrl_base;  in tusb_print_revision()
69 	rev = musb->tusb_revision;  in tusb_print_revision()
97 static void tusb_wbus_quirk(struct musb *musb, int enabled)  in tusb_wbus_quirk()  argument
99 	void __iomem	*tbase = musb->ctrl_base;  in tusb_wbus_quirk()
112 		dev_dbg(musb->controller, "Enabled tusb wbus quirk ctrl %08x ena %08x\n",  in tusb_wbus_quirk()
121 		dev_dbg(musb->controller, "Disabled tusb wbus quirk ctrl %08x ena %08x\n",  in tusb_wbus_quirk()
224 	struct musb *musb = hw_ep->musb;  in tusb_write_fifo()  local
231 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",  in tusb_write_fifo()
274 	struct musb *musb = hw_ep->musb;  in tusb_read_fifo()  local
279 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",  in tusb_read_fifo()
319 static struct musb *the_musb;
329 	struct musb	*musb = the_musb;  in tusb_draw_power()  local
330 	void __iomem	*tbase = musb->ctrl_base;  in tusb_draw_power()
343 	if (x->otg->default_a || mA < (musb->min_power << 1))  in tusb_draw_power()
348 		musb->is_bus_powered = 1;  in tusb_draw_power()
351 		musb->is_bus_powered = 0;  in tusb_draw_power()
356 	dev_dbg(musb->controller, "draw max %d mA VBUS\n", mA);  in tusb_draw_power()
364 static void tusb_set_clock_source(struct musb *musb, unsigned mode)  in tusb_set_clock_source()  argument
366 	void __iomem	*tbase = musb->ctrl_base;  in tusb_set_clock_source()
391 static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)  in tusb_allow_idle()  argument
393 	void __iomem	*tbase = musb->ctrl_base;  in tusb_allow_idle()
397 			&& (musb->tusb_revision == TUSB_REV_30))  in tusb_allow_idle()
398 		tusb_wbus_quirk(musb, 1);  in tusb_allow_idle()
400 	tusb_set_clock_source(musb, 0);  in tusb_allow_idle()
412 	if (is_host_active(musb)) {  in tusb_allow_idle()
422 	dev_dbg(musb->controller, "idle, wake on %02x\n", wakeup_enables);  in tusb_allow_idle()
428 static int tusb_musb_vbus_status(struct musb *musb)  in tusb_musb_vbus_status()  argument
430 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_vbus_status()
459 	struct musb	*musb = (void *)_musb;  in musb_do_idle()  local
462 	spin_lock_irqsave(&musb->lock, flags);  in musb_do_idle()
464 	switch (musb->xceiv->otg->state) {  in musb_do_idle()
466 		if ((musb->a_wait_bcon != 0)  in musb_do_idle()
467 			&& (musb->idle_timeout == 0  in musb_do_idle()
468 				|| time_after(jiffies, musb->idle_timeout))) {  in musb_do_idle()
469 			dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n",  in musb_do_idle()
470 					usb_otg_state_string(musb->xceiv->otg->state));  in musb_do_idle()
474 		tusb_musb_set_vbus(musb, 0);  in musb_do_idle()
479 	if (!musb->is_active) {  in musb_do_idle()
483 		if (is_host_active(musb) && (musb->port1_status >> 16))  in musb_do_idle()
486 		if (!musb->gadget_driver) {  in musb_do_idle()
494 		tusb_allow_idle(musb, wakeups);  in musb_do_idle()
497 	spin_unlock_irqrestore(&musb->lock, flags);  in musb_do_idle()
513 static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)  in tusb_musb_try_idle()  argument
522 	if (musb->is_active || ((musb->a_wait_bcon == 0)  in tusb_musb_try_idle()
523 			&& (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {  in tusb_musb_try_idle()
524 		dev_dbg(musb->controller, "%s active, deleting timer\n",  in tusb_musb_try_idle()
525 			usb_otg_state_string(musb->xceiv->otg->state));  in tusb_musb_try_idle()
535 			dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");  in tusb_musb_try_idle()
541 	dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",  in tusb_musb_try_idle()
542 		usb_otg_state_string(musb->xceiv->otg->state),  in tusb_musb_try_idle()
554 static void tusb_musb_set_vbus(struct musb *musb, int is_on)  in tusb_musb_set_vbus()  argument
556 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_set_vbus()
559 	struct usb_otg	*otg = musb->xceiv->otg;  in tusb_musb_set_vbus()
568 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);  in tusb_musb_set_vbus()
573 		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;  in tusb_musb_set_vbus()
577 		MUSB_HST_MODE(musb);  in tusb_musb_set_vbus()
586 			switch (musb->xceiv->otg->state) {  in tusb_musb_set_vbus()
589 				musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;  in tusb_musb_set_vbus()
592 				musb->xceiv->otg->state = OTG_STATE_A_IDLE;  in tusb_musb_set_vbus()
595 				musb->xceiv->otg->state = OTG_STATE_A_IDLE;  in tusb_musb_set_vbus()
597 			musb->is_active = 0;  in tusb_musb_set_vbus()
599 			MUSB_HST_MODE(musb);  in tusb_musb_set_vbus()
601 			musb->is_active = 0;  in tusb_musb_set_vbus()
603 			musb->xceiv->otg->state = OTG_STATE_B_IDLE;  in tusb_musb_set_vbus()
604 			MUSB_DEV_MODE(musb);  in tusb_musb_set_vbus()
615 	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);  in tusb_musb_set_vbus()
617 	dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",  in tusb_musb_set_vbus()
618 		usb_otg_state_string(musb->xceiv->otg->state),  in tusb_musb_set_vbus()
619 		musb_readb(musb->mregs, MUSB_DEVCTL),  in tusb_musb_set_vbus()
631 static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)  in tusb_musb_set_mode()  argument
633 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_set_mode()
661 		dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode);  in tusb_musb_set_mode()
681 tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)  in tusb_otg_ints()  argument
685 	struct usb_otg	*otg = musb->xceiv->otg;  in tusb_otg_ints()
692 		dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');  in tusb_otg_ints()
694 		tusb_musb_set_vbus(musb, default_a);  in tusb_otg_ints()
707 			musb->port1_status &=  in tusb_otg_ints()
716 				dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");  in tusb_otg_ints()
717 				if (musb->xceiv->otg->state != OTG_STATE_B_IDLE) {  in tusb_otg_ints()
719 					musb->xceiv->otg->state = OTG_STATE_B_IDLE;  in tusb_otg_ints()
720 					musb->int_usb |= MUSB_INTR_DISCONNECT;  in tusb_otg_ints()
722 				musb->is_active = 0;  in tusb_otg_ints()
724 			dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",  in tusb_otg_ints()
725 				usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
727 			schedule_work(&musb->irq_work);  in tusb_otg_ints()
730 			dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",  in tusb_otg_ints()
731 				usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
733 			switch (musb->xceiv->otg->state) {  in tusb_otg_ints()
735 				dev_dbg(musb->controller, "Got SRP, turning on VBUS\n");  in tusb_otg_ints()
736 				musb_platform_set_vbus(musb, 1);  in tusb_otg_ints()
739 				if (musb->a_wait_bcon != 0)  in tusb_otg_ints()
740 					musb->is_active = 0;  in tusb_otg_ints()
742 					musb->is_active = 1;  in tusb_otg_ints()
760 				if (musb->vbuserr_retry) {  in tusb_otg_ints()
761 					musb->vbuserr_retry--;  in tusb_otg_ints()
762 					tusb_musb_set_vbus(musb, 1);  in tusb_otg_ints()
764 					musb->vbuserr_retry  in tusb_otg_ints()
766 					tusb_musb_set_vbus(musb, 0);  in tusb_otg_ints()
779 		dev_dbg(musb->controller, "%s timer, %03x\n",  in tusb_otg_ints()
780 			usb_otg_state_string(musb->xceiv->otg->state), otg_stat);  in tusb_otg_ints()
782 		switch (musb->xceiv->otg->state) {  in tusb_otg_ints()
787 			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);  in tusb_otg_ints()
791 					dev_dbg(musb->controller, "devctl %02x\n", devctl);  in tusb_otg_ints()
794 				musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;  in tusb_otg_ints()
795 				musb->is_active = 0;  in tusb_otg_ints()
797 					+ msecs_to_jiffies(musb->a_wait_bcon);  in tusb_otg_ints()
801 				tusb_musb_set_vbus(musb, 0);  in tusb_otg_ints()
805 			if (musb->a_wait_bcon != 0)  in tusb_otg_ints()
807 					+ msecs_to_jiffies(musb->a_wait_bcon);  in tusb_otg_ints()
817 	schedule_work(&musb->irq_work);  in tusb_otg_ints()
824 	struct musb	*musb = __hci;  in tusb_musb_interrupt()  local
825 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_interrupt()
829 	spin_lock_irqsave(&musb->lock, flags);  in tusb_musb_interrupt()
836 	dev_dbg(musb->controller, "TUSB IRQ %08x\n", int_src);  in tusb_musb_interrupt()
838 	musb->int_usb = (u8) int_src;  in tusb_musb_interrupt()
845 		if (musb->tusb_revision == TUSB_REV_30)  in tusb_musb_interrupt()
846 			tusb_wbus_quirk(musb, 0);  in tusb_musb_interrupt()
857 			dev_dbg(musb->controller, "TUSB NOR not ready\n");  in tusb_musb_interrupt()
861 		tusb_set_clock_source(musb, 1);  in tusb_musb_interrupt()
866 			musb->is_active = 1;  in tusb_musb_interrupt()
867 			schedule_work(&musb->irq_work);  in tusb_musb_interrupt()
869 		dev_dbg(musb->controller, "wake %sactive %02x\n",  in tusb_musb_interrupt()
870 				musb->is_active ? "" : "in", reg);  in tusb_musb_interrupt()
882 		idle_timeout = tusb_otg_ints(musb, int_src, tbase);  in tusb_musb_interrupt()
891 		dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src);  in tusb_musb_interrupt()
893 		if (tusb_dma_omap(musb) && real_dma_src) {  in tusb_musb_interrupt()
899 					dev_dbg(musb->controller, "completing ep%i %s\n", i, "tx");  in tusb_musb_interrupt()
900 					musb_dma_completion(musb, i, 1);  in tusb_musb_interrupt()
912 		musb->int_rx = (((musb_src >> 16) & 0xffff) << 1);  in tusb_musb_interrupt()
913 		musb->int_tx = (musb_src & 0xffff);  in tusb_musb_interrupt()
915 		musb->int_rx = 0;  in tusb_musb_interrupt()
916 		musb->int_tx = 0;  in tusb_musb_interrupt()
920 		musb_interrupt(musb);  in tusb_musb_interrupt()
926 	tusb_musb_try_idle(musb, idle_timeout);  in tusb_musb_interrupt()
929 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_interrupt()
941 static void tusb_musb_enable(struct musb *musb)  in tusb_musb_enable()  argument
943 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_enable()
967 	irq_set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);  in tusb_musb_enable()
985 static void tusb_musb_disable(struct musb *musb)  in tusb_musb_disable()  argument
987 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_disable()
1010 static void tusb_setup_cpu_interface(struct musb *musb)  in tusb_setup_cpu_interface()  argument
1012 	void __iomem	*tbase = musb->ctrl_base;  in tusb_setup_cpu_interface()
1037 static int tusb_musb_start(struct musb *musb)  in tusb_musb_start()  argument
1039 	void __iomem	*tbase = musb->ctrl_base;  in tusb_musb_start()
1044 	if (musb->board_set_power)  in tusb_musb_start()
1045 		ret = musb->board_set_power(1);  in tusb_musb_start()
1051 	spin_lock_irqsave(&musb->lock, flags);  in tusb_musb_start()
1059 	musb->tusb_revision = tusb_get_revision(musb);  in tusb_musb_start()
1060 	tusb_print_revision(musb);  in tusb_musb_start()
1061 	if (musb->tusb_revision < 2) {  in tusb_musb_start()
1063 				musb->tusb_revision);  in tusb_musb_start()
1072 	tusb_set_clock_source(musb, 1);  in tusb_musb_start()
1083 	tusb_setup_cpu_interface(musb);  in tusb_musb_start()
1094 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_start()
1099 	spin_unlock_irqrestore(&musb->lock, flags);  in tusb_musb_start()
1101 	if (musb->board_set_power)  in tusb_musb_start()
1102 		musb->board_set_power(0);  in tusb_musb_start()
1107 static int tusb_musb_init(struct musb *musb)  in tusb_musb_init()  argument
1114 	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);  in tusb_musb_init()
1115 	if (IS_ERR_OR_NULL(musb->xceiv))  in tusb_musb_init()
1118 	pdev = to_platform_device(musb->controller);  in tusb_musb_init()
1122 	musb->async = mem->start;  in tusb_musb_init()
1131 	musb->sync = mem->start;  in tusb_musb_init()
1139 	musb->sync_va = sync;  in tusb_musb_init()
1144 	musb->mregs += TUSB_BASE_OFFSET;  in tusb_musb_init()
1146 	ret = tusb_musb_start(musb);  in tusb_musb_init()
1152 	musb->isr = tusb_musb_interrupt;  in tusb_musb_init()
1154 	musb->xceiv->set_power = tusb_draw_power;  in tusb_musb_init()
1155 	the_musb = musb;  in tusb_musb_init()
1157 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);  in tusb_musb_init()
1164 		usb_put_phy(musb->xceiv);  in tusb_musb_init()
1169 static int tusb_musb_exit(struct musb *musb)  in tusb_musb_exit()  argument
1174 	if (musb->board_set_power)  in tusb_musb_exit()
1175 		musb->board_set_power(0);  in tusb_musb_exit()
1177 	iounmap(musb->sync_va);  in tusb_musb_exit()
1179 	usb_put_phy(musb->xceiv);  in tusb_musb_exit()
1219 	struct platform_device		*musb;  in tusb_probe()  local
1260 	glue->musb = musb = platform_device_register_full(&pinfo);  in tusb_probe()
1261 	if (IS_ERR(musb)) {  in tusb_probe()
1262 		ret = PTR_ERR(musb);  in tusb_probe()
1274 	platform_device_unregister(glue->musb);  in tusb_remove()