Lines Matching refs:musb
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()
222 struct musb *musb = hw_ep->musb; in tusb_write_fifo() local
229 dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n", in tusb_write_fifo()
272 struct musb *musb = hw_ep->musb; in tusb_read_fifo() local
277 dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n", in tusb_read_fifo()
317 static struct musb *the_musb;
327 struct musb *musb = the_musb; in tusb_draw_power() local
328 void __iomem *tbase = musb->ctrl_base; in tusb_draw_power()
341 if (x->otg->default_a || mA < (musb->min_power << 1)) in tusb_draw_power()
346 musb->is_bus_powered = 1; in tusb_draw_power()
349 musb->is_bus_powered = 0; in tusb_draw_power()
354 dev_dbg(musb->controller, "draw max %d mA VBUS\n", mA); in tusb_draw_power()
362 static void tusb_set_clock_source(struct musb *musb, unsigned mode) in tusb_set_clock_source() argument
364 void __iomem *tbase = musb->ctrl_base; in tusb_set_clock_source()
389 static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables) in tusb_allow_idle() argument
391 void __iomem *tbase = musb->ctrl_base; in tusb_allow_idle()
395 && (musb->tusb_revision == TUSB_REV_30)) in tusb_allow_idle()
396 tusb_wbus_quirk(musb, 1); in tusb_allow_idle()
398 tusb_set_clock_source(musb, 0); in tusb_allow_idle()
410 if (is_host_active(musb)) { in tusb_allow_idle()
420 dev_dbg(musb->controller, "idle, wake on %02x\n", wakeup_enables); in tusb_allow_idle()
426 static int tusb_musb_vbus_status(struct musb *musb) in tusb_musb_vbus_status() argument
428 void __iomem *tbase = musb->ctrl_base; in tusb_musb_vbus_status()
455 struct musb *musb = from_timer(musb, t, dev_timer); in musb_do_idle() local
458 spin_lock_irqsave(&musb->lock, flags); in musb_do_idle()
460 switch (musb->xceiv->otg->state) { in musb_do_idle()
462 if ((musb->a_wait_bcon != 0) in musb_do_idle()
463 && (musb->idle_timeout == 0 in musb_do_idle()
464 || time_after(jiffies, musb->idle_timeout))) { in musb_do_idle()
465 dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n", in musb_do_idle()
466 usb_otg_state_string(musb->xceiv->otg->state)); in musb_do_idle()
470 tusb_musb_set_vbus(musb, 0); in musb_do_idle()
475 if (!musb->is_active) { in musb_do_idle()
479 if (is_host_active(musb) && (musb->port1_status >> 16)) in musb_do_idle()
482 if (!musb->gadget_driver) { in musb_do_idle()
490 tusb_allow_idle(musb, wakeups); in musb_do_idle()
493 spin_unlock_irqrestore(&musb->lock, flags); in musb_do_idle()
509 static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout) in tusb_musb_try_idle() argument
518 if (musb->is_active || ((musb->a_wait_bcon == 0) in tusb_musb_try_idle()
519 && (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) { in tusb_musb_try_idle()
520 dev_dbg(musb->controller, "%s active, deleting timer\n", in tusb_musb_try_idle()
521 usb_otg_state_string(musb->xceiv->otg->state)); in tusb_musb_try_idle()
522 del_timer(&musb->dev_timer); in tusb_musb_try_idle()
528 if (!timer_pending(&musb->dev_timer)) in tusb_musb_try_idle()
531 dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n"); in tusb_musb_try_idle()
537 dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n", in tusb_musb_try_idle()
538 usb_otg_state_string(musb->xceiv->otg->state), in tusb_musb_try_idle()
540 mod_timer(&musb->dev_timer, timeout); in tusb_musb_try_idle()
550 static void tusb_musb_set_vbus(struct musb *musb, int is_on) in tusb_musb_set_vbus() argument
552 void __iomem *tbase = musb->ctrl_base; in tusb_musb_set_vbus()
555 struct usb_otg *otg = musb->xceiv->otg; in tusb_musb_set_vbus()
564 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); in tusb_musb_set_vbus()
569 musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE; in tusb_musb_set_vbus()
573 MUSB_HST_MODE(musb); in tusb_musb_set_vbus()
582 switch (musb->xceiv->otg->state) { in tusb_musb_set_vbus()
585 musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL; in tusb_musb_set_vbus()
588 musb->xceiv->otg->state = OTG_STATE_A_IDLE; in tusb_musb_set_vbus()
591 musb->xceiv->otg->state = OTG_STATE_A_IDLE; in tusb_musb_set_vbus()
593 musb->is_active = 0; in tusb_musb_set_vbus()
595 MUSB_HST_MODE(musb); in tusb_musb_set_vbus()
597 musb->is_active = 0; in tusb_musb_set_vbus()
599 musb->xceiv->otg->state = OTG_STATE_B_IDLE; in tusb_musb_set_vbus()
600 MUSB_DEV_MODE(musb); in tusb_musb_set_vbus()
611 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); in tusb_musb_set_vbus()
613 dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n", in tusb_musb_set_vbus()
614 usb_otg_state_string(musb->xceiv->otg->state), in tusb_musb_set_vbus()
615 musb_readb(musb->mregs, MUSB_DEVCTL), in tusb_musb_set_vbus()
627 static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode) in tusb_musb_set_mode() argument
629 void __iomem *tbase = musb->ctrl_base; in tusb_musb_set_mode()
657 dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode); in tusb_musb_set_mode()
677 tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase) in tusb_otg_ints() argument
681 struct usb_otg *otg = musb->xceiv->otg; in tusb_otg_ints()
688 dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B'); in tusb_otg_ints()
690 tusb_musb_set_vbus(musb, default_a); in tusb_otg_ints()
703 musb->port1_status &= in tusb_otg_ints()
712 dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n"); in tusb_otg_ints()
713 if (musb->xceiv->otg->state != OTG_STATE_B_IDLE) { in tusb_otg_ints()
715 musb->xceiv->otg->state = OTG_STATE_B_IDLE; in tusb_otg_ints()
716 musb->int_usb |= MUSB_INTR_DISCONNECT; in tusb_otg_ints()
718 musb->is_active = 0; in tusb_otg_ints()
720 dev_dbg(musb->controller, "vbus change, %s, otg %03x\n", in tusb_otg_ints()
721 usb_otg_state_string(musb->xceiv->otg->state), otg_stat); in tusb_otg_ints()
723 schedule_delayed_work(&musb->irq_work, 0); in tusb_otg_ints()
726 dev_dbg(musb->controller, "vbus change, %s, otg %03x\n", in tusb_otg_ints()
727 usb_otg_state_string(musb->xceiv->otg->state), otg_stat); in tusb_otg_ints()
729 switch (musb->xceiv->otg->state) { in tusb_otg_ints()
731 dev_dbg(musb->controller, "Got SRP, turning on VBUS\n"); in tusb_otg_ints()
732 musb_platform_set_vbus(musb, 1); in tusb_otg_ints()
735 if (musb->a_wait_bcon != 0) in tusb_otg_ints()
736 musb->is_active = 0; in tusb_otg_ints()
738 musb->is_active = 1; in tusb_otg_ints()
756 if (musb->vbuserr_retry) { in tusb_otg_ints()
757 musb->vbuserr_retry--; in tusb_otg_ints()
758 tusb_musb_set_vbus(musb, 1); in tusb_otg_ints()
760 musb->vbuserr_retry in tusb_otg_ints()
762 tusb_musb_set_vbus(musb, 0); in tusb_otg_ints()
775 dev_dbg(musb->controller, "%s timer, %03x\n", in tusb_otg_ints()
776 usb_otg_state_string(musb->xceiv->otg->state), otg_stat); in tusb_otg_ints()
778 switch (musb->xceiv->otg->state) { in tusb_otg_ints()
783 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); in tusb_otg_ints()
787 dev_dbg(musb->controller, "devctl %02x\n", devctl); in tusb_otg_ints()
790 musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON; in tusb_otg_ints()
791 musb->is_active = 0; in tusb_otg_ints()
793 + msecs_to_jiffies(musb->a_wait_bcon); in tusb_otg_ints()
797 tusb_musb_set_vbus(musb, 0); in tusb_otg_ints()
801 if (musb->a_wait_bcon != 0) in tusb_otg_ints()
803 + msecs_to_jiffies(musb->a_wait_bcon); in tusb_otg_ints()
813 schedule_delayed_work(&musb->irq_work, 0); in tusb_otg_ints()
820 struct musb *musb = __hci; in tusb_musb_interrupt() local
821 void __iomem *tbase = musb->ctrl_base; in tusb_musb_interrupt()
825 spin_lock_irqsave(&musb->lock, flags); in tusb_musb_interrupt()
832 dev_dbg(musb->controller, "TUSB IRQ %08x\n", int_src); in tusb_musb_interrupt()
834 musb->int_usb = (u8) int_src; in tusb_musb_interrupt()
841 if (musb->tusb_revision == TUSB_REV_30) in tusb_musb_interrupt()
842 tusb_wbus_quirk(musb, 0); in tusb_musb_interrupt()
853 dev_dbg(musb->controller, "TUSB NOR not ready\n"); in tusb_musb_interrupt()
857 tusb_set_clock_source(musb, 1); in tusb_musb_interrupt()
862 musb->is_active = 1; in tusb_musb_interrupt()
863 schedule_delayed_work(&musb->irq_work, 0); in tusb_musb_interrupt()
865 dev_dbg(musb->controller, "wake %sactive %02x\n", in tusb_musb_interrupt()
866 musb->is_active ? "" : "in", reg); in tusb_musb_interrupt()
872 del_timer(&musb->dev_timer); in tusb_musb_interrupt()
878 idle_timeout = tusb_otg_ints(musb, int_src, tbase); in tusb_musb_interrupt()
887 dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src); in tusb_musb_interrupt()
896 musb->int_rx = (((musb_src >> 16) & 0xffff) << 1); in tusb_musb_interrupt()
897 musb->int_tx = (musb_src & 0xffff); in tusb_musb_interrupt()
899 musb->int_rx = 0; in tusb_musb_interrupt()
900 musb->int_tx = 0; in tusb_musb_interrupt()
904 musb_interrupt(musb); in tusb_musb_interrupt()
910 tusb_musb_try_idle(musb, idle_timeout); in tusb_musb_interrupt()
913 spin_unlock_irqrestore(&musb->lock, flags); in tusb_musb_interrupt()
925 static void tusb_musb_enable(struct musb *musb) in tusb_musb_enable() argument
927 void __iomem *tbase = musb->ctrl_base; in tusb_musb_enable()
951 irq_set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW); in tusb_musb_enable()
969 static void tusb_musb_disable(struct musb *musb) in tusb_musb_disable() argument
971 void __iomem *tbase = musb->ctrl_base; in tusb_musb_disable()
981 del_timer(&musb->dev_timer); in tusb_musb_disable()
994 static void tusb_setup_cpu_interface(struct musb *musb) in tusb_setup_cpu_interface() argument
996 void __iomem *tbase = musb->ctrl_base; in tusb_setup_cpu_interface()
1021 static int tusb_musb_start(struct musb *musb) in tusb_musb_start() argument
1023 void __iomem *tbase = musb->ctrl_base; in tusb_musb_start()
1028 if (musb->board_set_power) in tusb_musb_start()
1029 ret = musb->board_set_power(1); in tusb_musb_start()
1035 spin_lock_irqsave(&musb->lock, flags); in tusb_musb_start()
1043 musb->tusb_revision = tusb_get_revision(musb); in tusb_musb_start()
1044 tusb_print_revision(musb); in tusb_musb_start()
1045 if (musb->tusb_revision < 2) { in tusb_musb_start()
1047 musb->tusb_revision); in tusb_musb_start()
1056 tusb_set_clock_source(musb, 1); in tusb_musb_start()
1067 tusb_setup_cpu_interface(musb); in tusb_musb_start()
1078 spin_unlock_irqrestore(&musb->lock, flags); in tusb_musb_start()
1083 spin_unlock_irqrestore(&musb->lock, flags); in tusb_musb_start()
1085 if (musb->board_set_power) in tusb_musb_start()
1086 musb->board_set_power(0); in tusb_musb_start()
1091 static int tusb_musb_init(struct musb *musb) in tusb_musb_init() argument
1098 musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); in tusb_musb_init()
1099 if (IS_ERR_OR_NULL(musb->xceiv)) in tusb_musb_init()
1102 pdev = to_platform_device(musb->controller); in tusb_musb_init()
1111 musb->async = mem->start; in tusb_musb_init()
1120 musb->sync = mem->start; in tusb_musb_init()
1128 musb->sync_va = sync; in tusb_musb_init()
1133 musb->mregs += TUSB_BASE_OFFSET; in tusb_musb_init()
1135 ret = tusb_musb_start(musb); in tusb_musb_init()
1141 musb->isr = tusb_musb_interrupt; in tusb_musb_init()
1143 musb->xceiv->set_power = tusb_draw_power; in tusb_musb_init()
1144 the_musb = musb; in tusb_musb_init()
1146 timer_setup(&musb->dev_timer, musb_do_idle, 0); in tusb_musb_init()
1153 usb_put_phy(musb->xceiv); in tusb_musb_init()
1158 static int tusb_musb_exit(struct musb *musb) in tusb_musb_exit() argument
1160 del_timer_sync(&musb->dev_timer); in tusb_musb_exit()
1163 if (musb->board_set_power) in tusb_musb_exit()
1164 musb->board_set_power(0); in tusb_musb_exit()
1166 iounmap(musb->sync_va); in tusb_musb_exit()
1168 usb_put_phy(musb->xceiv); in tusb_musb_exit()
1209 struct platform_device *musb; in tusb_probe() local
1250 glue->musb = musb = platform_device_register_full(&pinfo); in tusb_probe()
1251 if (IS_ERR(musb)) { in tusb_probe()
1252 ret = PTR_ERR(musb); in tusb_probe()
1264 platform_device_unregister(glue->musb); in tusb_remove()