Lines Matching full:udc
3 * omap_udc.c -- for OMAP full speed udc; most chips support OTG.
66 * The OMAP UDC needs _very_ early endpoint setup: before enabling the
70 * optional new "UDC not yet running" state to the gadget driver model,
148 struct omap_udc *udc; in omap_ep_enable() local
192 udc = ep->udc; in omap_ep_enable()
193 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) { in omap_ep_enable()
198 spin_lock_irqsave(&udc->lock, flags); in omap_ep_enable()
210 omap_writew(udc->clr_halt, UDC_CTRL); in omap_ep_enable()
215 list_add(&ep->iso, &udc->iso); in omap_ep_enable()
230 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_enable()
248 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_disable()
257 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_disable()
292 struct omap_udc *udc = ep->udc; in done() local
303 usb_gadget_unmap_request(&udc->gadget, &req->req, in done()
315 spin_unlock(&ep->udc->lock); in done()
317 spin_lock(&ep->udc->lock); in done()
511 * When DMA completion isn't request completion, the UDC continues with
635 static void dma_irq(struct omap_udc *udc, u16 irq_src) in dma_irq() argument
643 ep = &udc->ep[16 + UDC_DMA_TX_SRC(dman_stat)]; in dma_irq()
662 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
680 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
869 struct omap_udc *udc; in omap_ep_queue() local
901 udc = ep->udc; in omap_ep_queue()
902 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) in omap_ep_queue()
906 usb_gadget_map_request(&udc->gadget, &req->req, in omap_ep_queue()
912 spin_lock_irqsave(&udc->lock, flags); in omap_ep_queue()
928 if (!udc->ep0_pending || !list_empty(&ep->queue)) { in omap_ep_queue()
929 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
934 is_in = udc->ep0_in; in omap_ep_queue()
941 if (udc->ep0_set_config) { in omap_ep_queue()
945 if (!udc->ep0_reset_config) in omap_ep_queue()
962 udc->ep0_pending = 0; in omap_ep_queue()
971 if (udc->ep0_setup) in omap_ep_queue()
1000 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
1014 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_dequeue()
1024 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1038 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1050 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_set_halt()
1054 if (!ep->udc->ep0_pending) in omap_ep_set_halt()
1057 if (ep->udc->ep0_set_config) { in omap_ep_set_halt()
1062 ep->udc->ep0_pending = 0; in omap_ep_set_halt()
1099 omap_writew(ep->udc->clr_halt, UDC_CTRL); in omap_ep_set_halt()
1111 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_set_halt()
1140 struct omap_udc *udc; in omap_wakeup() local
1144 udc = container_of(gadget, struct omap_udc, gadget); in omap_wakeup()
1146 spin_lock_irqsave(&udc->lock, flags); in omap_wakeup()
1147 if (udc->devstat & UDC_SUS) { in omap_wakeup()
1151 if (udc->devstat & (UDC_B_HNP_ENABLE|UDC_R_WK_OK)) { in omap_wakeup()
1158 } else if (!(udc->devstat & UDC_ATT)) { in omap_wakeup()
1159 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_wakeup()
1160 retval = otg_start_srp(udc->transceiver->otg); in omap_wakeup()
1162 spin_unlock_irqrestore(&udc->lock, flags); in omap_wakeup()
1170 struct omap_udc *udc; in omap_set_selfpowered() local
1175 udc = container_of(gadget, struct omap_udc, gadget); in omap_set_selfpowered()
1176 spin_lock_irqsave(&udc->lock, flags); in omap_set_selfpowered()
1183 spin_unlock_irqrestore(&udc->lock, flags); in omap_set_selfpowered()
1188 static int can_pullup(struct omap_udc *udc) in can_pullup() argument
1190 return udc->driver && udc->softconnect && udc->vbus_active; in can_pullup()
1193 static void pullup_enable(struct omap_udc *udc) in pullup_enable() argument
1200 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_enable()
1210 static void pullup_disable(struct omap_udc *udc) in pullup_disable() argument
1214 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_disable()
1227 static struct omap_udc *udc; variable
1231 if (udc == NULL || udc->dc_clk == NULL || udc->hhc_clk == NULL) in omap_udc_enable_clock()
1235 clk_enable(udc->dc_clk); in omap_udc_enable_clock()
1236 clk_enable(udc->hhc_clk); in omap_udc_enable_clock()
1239 clk_disable(udc->hhc_clk); in omap_udc_enable_clock()
1240 clk_disable(udc->dc_clk); in omap_udc_enable_clock()
1250 struct omap_udc *udc; in omap_vbus_session() local
1254 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_session()
1255 spin_lock_irqsave(&udc->lock, flags); in omap_vbus_session()
1257 udc->vbus_active = (is_active != 0); in omap_vbus_session()
1267 if (udc->dc_clk != NULL && is_active) { in omap_vbus_session()
1268 if (!udc->clk_requested) { in omap_vbus_session()
1270 udc->clk_requested = 1; in omap_vbus_session()
1273 if (can_pullup(udc)) in omap_vbus_session()
1274 pullup_enable(udc); in omap_vbus_session()
1276 pullup_disable(udc); in omap_vbus_session()
1277 if (udc->dc_clk != NULL && !is_active) { in omap_vbus_session()
1278 if (udc->clk_requested) { in omap_vbus_session()
1280 udc->clk_requested = 0; in omap_vbus_session()
1283 spin_unlock_irqrestore(&udc->lock, flags); in omap_vbus_session()
1289 struct omap_udc *udc; in omap_vbus_draw() local
1291 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_draw()
1292 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_vbus_draw()
1293 return usb_phy_set_power(udc->transceiver, mA); in omap_vbus_draw()
1299 struct omap_udc *udc; in omap_pullup() local
1302 udc = container_of(gadget, struct omap_udc, gadget); in omap_pullup()
1303 spin_lock_irqsave(&udc->lock, flags); in omap_pullup()
1304 udc->softconnect = (is_on != 0); in omap_pullup()
1305 if (can_pullup(udc)) in omap_pullup()
1306 pullup_enable(udc); in omap_pullup()
1308 pullup_disable(udc); in omap_pullup()
1309 spin_unlock_irqrestore(&udc->lock, flags); in omap_pullup()
1330 /* dequeue ALL requests; caller holds udc->lock */
1351 /* caller holds udc->lock */
1352 static void udc_quiesce(struct omap_udc *udc) in udc_quiesce() argument
1356 udc->gadget.speed = USB_SPEED_UNKNOWN; in udc_quiesce()
1357 nuke(&udc->ep[0], -ESHUTDOWN); in udc_quiesce()
1358 list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) in udc_quiesce()
1364 static void update_otg(struct omap_udc *udc) in update_otg() argument
1368 if (!gadget_is_otg(&udc->gadget)) in update_otg()
1376 udc->gadget.b_hnp_enable = !!(devstat & UDC_B_HNP_ENABLE); in update_otg()
1377 udc->gadget.a_hnp_support = !!(devstat & UDC_A_HNP_SUPPORT); in update_otg()
1378 udc->gadget.a_alt_hnp_support = !!(devstat & UDC_A_ALT_HNP_SUPPORT); in update_otg()
1383 if (udc->gadget.b_hnp_enable) { in update_otg()
1393 static void ep0_irq(struct omap_udc *udc, u16 irq_src) in ep0_irq() argument
1395 struct omap_ep *ep0 = &udc->ep[0]; in ep0_irq()
1432 if (udc->ep0_in) { in ep0_irq()
1439 if (!req && udc->ep0_pending) { in ep0_irq()
1444 udc->ep0_pending = 0; in ep0_irq()
1469 if (!udc->ep0_in) { in ep0_irq()
1477 udc->ep0_pending = 0; in ep0_irq()
1492 udc->ep0_pending = 0; in ep0_irq()
1536 udc->ep0_in = (u.r.bRequestType & USB_DIR_IN) != 0; in ep0_irq()
1537 udc->ep0_set_config = 0; in ep0_irq()
1538 udc->ep0_pending = 1; in ep0_irq()
1543 /* udc needs to know when ep != 0 is valid */ in ep0_irq()
1548 udc->ep0_set_config = 1; in ep0_irq()
1549 udc->ep0_reset_config = (w_value == 0); in ep0_irq()
1552 /* update udc NOW since gadget driver may start in ep0_irq()
1556 if (udc->ep0_reset_config) in ep0_irq()
1560 update_otg(udc); in ep0_irq()
1569 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1577 omap_writew(udc->clr_halt, UDC_CTRL); in ep0_irq()
1598 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1622 udc->ep0_pending = 0; in ep0_irq()
1634 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1669 if (!udc->ep0_in && w_length) { in ep0_irq()
1697 udc->ep0_setup = 1; in ep0_irq()
1698 spin_unlock(&udc->lock); in ep0_irq()
1699 status = udc->driver->setup(&udc->gadget, &u.r); in ep0_irq()
1700 spin_lock(&udc->lock); in ep0_irq()
1701 udc->ep0_setup = 0; in ep0_irq()
1708 if (udc->ep0_set_config) { in ep0_irq()
1709 if (udc->ep0_reset_config) in ep0_irq()
1715 udc->ep0_pending = 0; in ep0_irq()
1724 static void devstate_irq(struct omap_udc *udc, u16 irq_src) in devstate_irq() argument
1729 change = devstat ^ udc->devstat; in devstate_irq()
1730 udc->devstat = devstat; in devstate_irq()
1733 udc_quiesce(udc); in devstate_irq()
1740 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1742 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1743 pullup_enable(udc); in devstate_irq()
1745 } else if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1746 udc->gadget.speed = USB_SPEED_UNKNOWN; in devstate_irq()
1747 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1748 pullup_disable(udc); in devstate_irq()
1750 udc->driver->driver.name); in devstate_irq()
1751 if (udc->driver->disconnect) { in devstate_irq()
1752 spin_unlock(&udc->lock); in devstate_irq()
1753 udc->driver->disconnect(&udc->gadget); in devstate_irq()
1754 spin_lock(&udc->lock); in devstate_irq()
1764 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1766 udc->driver->driver.name); in devstate_irq()
1775 if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1779 update_otg(udc); in devstate_irq()
1781 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1782 && udc->driver->suspend) { in devstate_irq()
1783 spin_unlock(&udc->lock); in devstate_irq()
1784 udc->driver->suspend(&udc->gadget); in devstate_irq()
1785 spin_lock(&udc->lock); in devstate_irq()
1787 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1789 udc->transceiver, 1); in devstate_irq()
1792 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1794 udc->transceiver, 0); in devstate_irq()
1795 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1796 && udc->driver->resume) { in devstate_irq()
1797 spin_unlock(&udc->lock); in devstate_irq()
1798 udc->driver->resume(&udc->gadget); in devstate_irq()
1799 spin_lock(&udc->lock); in devstate_irq()
1806 update_otg(udc); in devstate_irq()
1820 struct omap_udc *udc = _udc; in omap_udc_irq() local
1825 spin_lock_irqsave(&udc->lock, flags); in omap_udc_irq()
1852 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_irq()
1867 spin_lock_irqsave(&ep->udc->lock, flags); in pio_out_timer()
1887 spin_unlock_irqrestore(&ep->udc->lock, flags); in pio_out_timer()
1896 struct omap_udc *udc = _dev; in omap_udc_pio_irq() local
1900 spin_lock_irqsave(&udc->lock, flags); in omap_udc_pio_irq()
1909 ep = &udc->ep[epnum]; in omap_udc_pio_irq()
1945 ep = &udc->ep[16 + epnum]; in omap_udc_pio_irq()
1964 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_pio_irq()
1971 struct omap_udc *udc = _dev; in omap_udc_iso_irq() local
1976 spin_lock_irqsave(&udc->lock, flags); in omap_udc_iso_irq()
1979 list_for_each_entry(ep, &udc->iso, iso) { in omap_udc_iso_irq()
2029 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_iso_irq()
2050 spin_lock_irqsave(&udc->lock, flags); in omap_udc_start()
2052 list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { in omap_udc_start()
2059 udc->ep0_pending = 0; in omap_udc_start()
2060 udc->ep[0].irqs = 0; in omap_udc_start()
2061 udc->softconnect = 1; in omap_udc_start()
2064 udc->driver = driver; in omap_udc_start()
2065 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_start()
2067 if (udc->dc_clk != NULL) in omap_udc_start()
2073 if (!IS_ERR_OR_NULL(udc->transceiver)) { in omap_udc_start()
2074 status = otg_set_peripheral(udc->transceiver->otg, in omap_udc_start()
2075 &udc->gadget); in omap_udc_start()
2078 udc->driver = NULL; in omap_udc_start()
2083 if (can_pullup(udc)) in omap_udc_start()
2084 pullup_enable(udc); in omap_udc_start()
2086 pullup_disable(udc); in omap_udc_start()
2093 omap_vbus_session(&udc->gadget, 1); in omap_udc_start()
2096 if (udc->dc_clk != NULL) in omap_udc_start()
2106 if (udc->dc_clk != NULL) in omap_udc_stop()
2110 omap_vbus_session(&udc->gadget, 0); in omap_udc_stop()
2112 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_udc_stop()
2113 (void) otg_set_peripheral(udc->transceiver->otg, NULL); in omap_udc_stop()
2115 pullup_disable(udc); in omap_udc_stop()
2117 spin_lock_irqsave(&udc->lock, flags); in omap_udc_stop()
2118 udc_quiesce(udc); in omap_udc_stop()
2119 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_stop()
2121 udc->driver = NULL; in omap_udc_stop()
2123 if (udc->dc_clk != NULL) in omap_udc_stop()
2135 static const char proc_filename[] = "driver/udc";
2299 spin_lock_irqsave(&udc->lock, flags); in proc_udc_show()
2301 seq_printf(s, "OMAP UDC driver, version: " DRIVER_VERSION in proc_udc_show()
2309 "UDC rev %d.%d, fifo mode %d, gadget %s\n" in proc_udc_show()
2313 udc->driver ? udc->driver->driver.name : "(none)", in proc_udc_show()
2315 udc->transceiver in proc_udc_show()
2316 ? udc->transceiver->label in proc_udc_show()
2340 /* UDC controller registers */ in proc_udc_show()
2343 spin_unlock_irqrestore(&udc->lock, flags); in proc_udc_show()
2420 proc_ep_show(s, &udc->ep[0]); in proc_udc_show()
2422 list_for_each_entry(ep, &udc->gadget.ep_list, in proc_udc_show()
2429 spin_unlock_irqrestore(&udc->lock, flags); in proc_udc_show()
2468 ep = &udc->ep[addr & 0xf]; in omap_ep_setup()
2559 ep->udc = udc; in omap_ep_setup()
2587 list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); in omap_ep_setup()
2594 pullup_disable(udc); in omap_udc_release()
2595 if (!IS_ERR_OR_NULL(udc->transceiver)) { in omap_udc_release()
2596 usb_put_phy(udc->transceiver); in omap_udc_release()
2597 udc->transceiver = NULL; in omap_udc_release()
2601 if (udc->dc_clk) { in omap_udc_release()
2602 if (udc->clk_requested) in omap_udc_release()
2604 clk_unprepare(udc->hhc_clk); in omap_udc_release()
2605 clk_unprepare(udc->dc_clk); in omap_udc_release()
2606 clk_put(udc->hhc_clk); in omap_udc_release()
2607 clk_put(udc->dc_clk); in omap_udc_release()
2609 if (udc->done) in omap_udc_release()
2610 complete(udc->done); in omap_udc_release()
2611 kfree(udc); in omap_udc_release()
2630 udc = kzalloc(sizeof(*udc), GFP_KERNEL); in omap_udc_setup()
2631 if (!udc) in omap_udc_setup()
2634 spin_lock_init(&udc->lock); in omap_udc_setup()
2636 udc->gadget.ops = &omap_gadget_ops; in omap_udc_setup()
2637 udc->gadget.ep0 = &udc->ep[0].ep; in omap_udc_setup()
2638 INIT_LIST_HEAD(&udc->gadget.ep_list); in omap_udc_setup()
2639 INIT_LIST_HEAD(&udc->iso); in omap_udc_setup()
2640 udc->gadget.speed = USB_SPEED_UNKNOWN; in omap_udc_setup()
2641 udc->gadget.max_speed = USB_SPEED_FULL; in omap_udc_setup()
2642 udc->gadget.name = driver_name; in omap_udc_setup()
2643 udc->gadget.quirk_ep_out_aligned_size = 1; in omap_udc_setup()
2644 udc->transceiver = xceiv; in omap_udc_setup()
2649 list_del_init(&udc->ep[0].ep.ep_list); in omap_udc_setup()
2772 INFO("OMAP UDC rev %d.%d%s\n", in omap_udc_probe()
2845 ERR("unrecognized UDC HMC mode %d\n", hmc); in omap_udc_probe()
2858 /* "udc" is now valid */ in omap_udc_probe()
2859 pullup_disable(udc); in omap_udc_probe()
2861 udc->gadget.is_otg = (config->otg != 0); in omap_udc_probe()
2866 udc->clr_halt = UDC_RESET_EP | UDC_CLRDATA_TOGGLE; in omap_udc_probe()
2868 udc->clr_halt = UDC_RESET_EP; in omap_udc_probe()
2872 omap_udc_irq, 0, driver_name, udc); in omap_udc_probe()
2881 omap_udc_pio_irq, 0, "omap_udc pio", udc); in omap_udc_probe()
2889 omap_udc_iso_irq, 0, "omap_udc iso", udc); in omap_udc_probe()
2897 udc->dc_clk = dc_clk; in omap_udc_probe()
2898 udc->hhc_clk = hhc_clk; in omap_udc_probe()
2904 return usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, in omap_udc_probe()
2908 kfree(udc); in omap_udc_probe()
2909 udc = NULL; in omap_udc_probe()
2932 udc->done = &done; in omap_udc_remove()
2934 usb_del_gadget_udc(&udc->gadget); in omap_udc_remove()
2964 omap_pullup(&udc->gadget, 0); in omap_udc_suspend()
2973 omap_pullup(&udc->gadget, 1); in omap_udc_resume()
2977 return omap_wakeup(&udc->gadget); in omap_udc_resume()
2994 MODULE_DESCRIPTION("OMAP UDC driver");