Lines Matching full:udc
3 * omap_udc.c -- for OMAP full speed udc; most chips support OTG.
59 #define DRIVER_DESC "OMAP UDC driver"
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,
149 struct omap_udc *udc; in omap_ep_enable() local
193 udc = ep->udc; in omap_ep_enable()
194 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) { in omap_ep_enable()
199 spin_lock_irqsave(&udc->lock, flags); in omap_ep_enable()
211 omap_writew(udc->clr_halt, UDC_CTRL); in omap_ep_enable()
216 list_add(&ep->iso, &udc->iso); in omap_ep_enable()
231 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_enable()
249 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_disable()
258 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_disable()
293 struct omap_udc *udc = ep->udc; in done() local
304 usb_gadget_unmap_request(&udc->gadget, &req->req, in done()
316 spin_unlock(&ep->udc->lock); in done()
318 spin_lock(&ep->udc->lock); in done()
512 * When DMA completion isn't request completion, the UDC continues with
636 static void dma_irq(struct omap_udc *udc, u16 irq_src) in dma_irq() argument
644 ep = &udc->ep[16 + UDC_DMA_TX_SRC(dman_stat)]; in dma_irq()
663 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
681 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
870 struct omap_udc *udc; in omap_ep_queue() local
902 udc = ep->udc; in omap_ep_queue()
903 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) in omap_ep_queue()
907 usb_gadget_map_request(&udc->gadget, &req->req, in omap_ep_queue()
913 spin_lock_irqsave(&udc->lock, flags); in omap_ep_queue()
929 if (!udc->ep0_pending || !list_empty(&ep->queue)) { in omap_ep_queue()
930 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
935 is_in = udc->ep0_in; in omap_ep_queue()
942 if (udc->ep0_set_config) { in omap_ep_queue()
946 if (!udc->ep0_reset_config) in omap_ep_queue()
963 udc->ep0_pending = 0; in omap_ep_queue()
972 if (udc->ep0_setup) in omap_ep_queue()
1001 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
1015 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_dequeue()
1025 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1039 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1051 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_set_halt()
1055 if (!ep->udc->ep0_pending) in omap_ep_set_halt()
1058 if (ep->udc->ep0_set_config) { in omap_ep_set_halt()
1063 ep->udc->ep0_pending = 0; in omap_ep_set_halt()
1100 omap_writew(ep->udc->clr_halt, UDC_CTRL); in omap_ep_set_halt()
1112 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_set_halt()
1141 struct omap_udc *udc; in omap_wakeup() local
1145 udc = container_of(gadget, struct omap_udc, gadget); in omap_wakeup()
1147 spin_lock_irqsave(&udc->lock, flags); in omap_wakeup()
1148 if (udc->devstat & UDC_SUS) { in omap_wakeup()
1152 if (udc->devstat & (UDC_B_HNP_ENABLE|UDC_R_WK_OK)) { in omap_wakeup()
1159 } else if (!(udc->devstat & UDC_ATT)) { in omap_wakeup()
1160 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_wakeup()
1161 retval = otg_start_srp(udc->transceiver->otg); in omap_wakeup()
1163 spin_unlock_irqrestore(&udc->lock, flags); in omap_wakeup()
1171 struct omap_udc *udc; in omap_set_selfpowered() local
1176 udc = container_of(gadget, struct omap_udc, gadget); in omap_set_selfpowered()
1177 spin_lock_irqsave(&udc->lock, flags); in omap_set_selfpowered()
1184 spin_unlock_irqrestore(&udc->lock, flags); in omap_set_selfpowered()
1189 static int can_pullup(struct omap_udc *udc) in can_pullup() argument
1191 return udc->driver && udc->softconnect && udc->vbus_active; in can_pullup()
1194 static void pullup_enable(struct omap_udc *udc) in pullup_enable() argument
1201 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_enable()
1211 static void pullup_disable(struct omap_udc *udc) in pullup_disable() argument
1215 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_disable()
1228 static struct omap_udc *udc; variable
1232 if (udc == NULL || udc->dc_clk == NULL || udc->hhc_clk == NULL) in omap_udc_enable_clock()
1236 clk_enable(udc->dc_clk); in omap_udc_enable_clock()
1237 clk_enable(udc->hhc_clk); in omap_udc_enable_clock()
1240 clk_disable(udc->hhc_clk); in omap_udc_enable_clock()
1241 clk_disable(udc->dc_clk); in omap_udc_enable_clock()
1251 struct omap_udc *udc; in omap_vbus_session() local
1255 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_session()
1256 spin_lock_irqsave(&udc->lock, flags); in omap_vbus_session()
1258 udc->vbus_active = (is_active != 0); in omap_vbus_session()
1268 if (udc->dc_clk != NULL && is_active) { in omap_vbus_session()
1269 if (!udc->clk_requested) { in omap_vbus_session()
1271 udc->clk_requested = 1; in omap_vbus_session()
1274 if (can_pullup(udc)) in omap_vbus_session()
1275 pullup_enable(udc); in omap_vbus_session()
1277 pullup_disable(udc); in omap_vbus_session()
1278 if (udc->dc_clk != NULL && !is_active) { in omap_vbus_session()
1279 if (udc->clk_requested) { in omap_vbus_session()
1281 udc->clk_requested = 0; in omap_vbus_session()
1284 spin_unlock_irqrestore(&udc->lock, flags); in omap_vbus_session()
1290 struct omap_udc *udc; in omap_vbus_draw() local
1292 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_draw()
1293 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_vbus_draw()
1294 return usb_phy_set_power(udc->transceiver, mA); in omap_vbus_draw()
1300 struct omap_udc *udc; in omap_pullup() local
1303 udc = container_of(gadget, struct omap_udc, gadget); in omap_pullup()
1304 spin_lock_irqsave(&udc->lock, flags); in omap_pullup()
1305 udc->softconnect = (is_on != 0); in omap_pullup()
1306 if (can_pullup(udc)) in omap_pullup()
1307 pullup_enable(udc); in omap_pullup()
1309 pullup_disable(udc); in omap_pullup()
1310 spin_unlock_irqrestore(&udc->lock, flags); in omap_pullup()
1331 /* dequeue ALL requests; caller holds udc->lock */
1352 /* caller holds udc->lock */
1353 static void udc_quiesce(struct omap_udc *udc) in udc_quiesce() argument
1357 udc->gadget.speed = USB_SPEED_UNKNOWN; in udc_quiesce()
1358 nuke(&udc->ep[0], -ESHUTDOWN); in udc_quiesce()
1359 list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) in udc_quiesce()
1365 static void update_otg(struct omap_udc *udc) in update_otg() argument
1369 if (!gadget_is_otg(&udc->gadget)) in update_otg()
1377 udc->gadget.b_hnp_enable = !!(devstat & UDC_B_HNP_ENABLE); in update_otg()
1378 udc->gadget.a_hnp_support = !!(devstat & UDC_A_HNP_SUPPORT); in update_otg()
1379 udc->gadget.a_alt_hnp_support = !!(devstat & UDC_A_ALT_HNP_SUPPORT); in update_otg()
1384 if (udc->gadget.b_hnp_enable) { in update_otg()
1394 static void ep0_irq(struct omap_udc *udc, u16 irq_src) in ep0_irq() argument
1396 struct omap_ep *ep0 = &udc->ep[0]; in ep0_irq()
1433 if (udc->ep0_in) { in ep0_irq()
1440 if (!req && udc->ep0_pending) { in ep0_irq()
1445 udc->ep0_pending = 0; in ep0_irq()
1470 if (!udc->ep0_in) { in ep0_irq()
1478 udc->ep0_pending = 0; in ep0_irq()
1493 udc->ep0_pending = 0; in ep0_irq()
1537 udc->ep0_in = (u.r.bRequestType & USB_DIR_IN) != 0; in ep0_irq()
1538 udc->ep0_set_config = 0; in ep0_irq()
1539 udc->ep0_pending = 1; in ep0_irq()
1544 /* udc needs to know when ep != 0 is valid */ in ep0_irq()
1549 udc->ep0_set_config = 1; in ep0_irq()
1550 udc->ep0_reset_config = (w_value == 0); in ep0_irq()
1553 /* update udc NOW since gadget driver may start in ep0_irq()
1557 if (udc->ep0_reset_config) in ep0_irq()
1561 update_otg(udc); in ep0_irq()
1570 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1578 omap_writew(udc->clr_halt, UDC_CTRL); in ep0_irq()
1599 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1623 udc->ep0_pending = 0; in ep0_irq()
1635 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1670 if (!udc->ep0_in && w_length) { in ep0_irq()
1698 udc->ep0_setup = 1; in ep0_irq()
1699 spin_unlock(&udc->lock); in ep0_irq()
1700 status = udc->driver->setup(&udc->gadget, &u.r); in ep0_irq()
1701 spin_lock(&udc->lock); in ep0_irq()
1702 udc->ep0_setup = 0; in ep0_irq()
1709 if (udc->ep0_set_config) { in ep0_irq()
1710 if (udc->ep0_reset_config) in ep0_irq()
1716 udc->ep0_pending = 0; in ep0_irq()
1725 static void devstate_irq(struct omap_udc *udc, u16 irq_src) in devstate_irq() argument
1730 change = devstat ^ udc->devstat; in devstate_irq()
1731 udc->devstat = devstat; in devstate_irq()
1734 udc_quiesce(udc); in devstate_irq()
1741 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1743 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1744 pullup_enable(udc); in devstate_irq()
1746 } else if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1747 udc->gadget.speed = USB_SPEED_UNKNOWN; in devstate_irq()
1748 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1749 pullup_disable(udc); in devstate_irq()
1751 udc->driver->driver.name); in devstate_irq()
1752 if (udc->driver->disconnect) { in devstate_irq()
1753 spin_unlock(&udc->lock); in devstate_irq()
1754 udc->driver->disconnect(&udc->gadget); in devstate_irq()
1755 spin_lock(&udc->lock); in devstate_irq()
1765 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1767 udc->driver->driver.name); in devstate_irq()
1776 if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1780 update_otg(udc); in devstate_irq()
1782 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1783 && udc->driver->suspend) { in devstate_irq()
1784 spin_unlock(&udc->lock); in devstate_irq()
1785 udc->driver->suspend(&udc->gadget); in devstate_irq()
1786 spin_lock(&udc->lock); in devstate_irq()
1788 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1790 udc->transceiver, 1); in devstate_irq()
1793 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1795 udc->transceiver, 0); in devstate_irq()
1796 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1797 && udc->driver->resume) { in devstate_irq()
1798 spin_unlock(&udc->lock); in devstate_irq()
1799 udc->driver->resume(&udc->gadget); in devstate_irq()
1800 spin_lock(&udc->lock); in devstate_irq()
1807 update_otg(udc); in devstate_irq()
1821 struct omap_udc *udc = _udc; in omap_udc_irq() local
1826 spin_lock_irqsave(&udc->lock, flags); in omap_udc_irq()
1853 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_irq()
1868 spin_lock_irqsave(&ep->udc->lock, flags); in pio_out_timer()
1888 spin_unlock_irqrestore(&ep->udc->lock, flags); in pio_out_timer()
1897 struct omap_udc *udc = _dev; in omap_udc_pio_irq() local
1901 spin_lock_irqsave(&udc->lock, flags); in omap_udc_pio_irq()
1910 ep = &udc->ep[epnum]; in omap_udc_pio_irq()
1946 ep = &udc->ep[16 + epnum]; in omap_udc_pio_irq()
1965 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_pio_irq()
1972 struct omap_udc *udc = _dev; in omap_udc_iso_irq() local
1977 spin_lock_irqsave(&udc->lock, flags); in omap_udc_iso_irq()
1980 list_for_each_entry(ep, &udc->iso, iso) { in omap_udc_iso_irq()
2030 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_iso_irq()
2051 spin_lock_irqsave(&udc->lock, flags); in omap_udc_start()
2053 list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { in omap_udc_start()
2060 udc->ep0_pending = 0; in omap_udc_start()
2061 udc->ep[0].irqs = 0; in omap_udc_start()
2062 udc->softconnect = 1; in omap_udc_start()
2065 udc->driver = driver; in omap_udc_start()
2066 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_start()
2068 if (udc->dc_clk != NULL) in omap_udc_start()
2074 if (!IS_ERR_OR_NULL(udc->transceiver)) { in omap_udc_start()
2075 status = otg_set_peripheral(udc->transceiver->otg, in omap_udc_start()
2076 &udc->gadget); in omap_udc_start()
2079 udc->driver = NULL; in omap_udc_start()
2084 if (can_pullup(udc)) in omap_udc_start()
2085 pullup_enable(udc); in omap_udc_start()
2087 pullup_disable(udc); in omap_udc_start()
2094 omap_vbus_session(&udc->gadget, 1); in omap_udc_start()
2097 if (udc->dc_clk != NULL) in omap_udc_start()
2107 if (udc->dc_clk != NULL) in omap_udc_stop()
2111 omap_vbus_session(&udc->gadget, 0); in omap_udc_stop()
2113 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_udc_stop()
2114 (void) otg_set_peripheral(udc->transceiver->otg, NULL); in omap_udc_stop()
2116 pullup_disable(udc); in omap_udc_stop()
2118 spin_lock_irqsave(&udc->lock, flags); in omap_udc_stop()
2119 udc_quiesce(udc); in omap_udc_stop()
2120 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_stop()
2122 udc->driver = NULL; in omap_udc_stop()
2124 if (udc->dc_clk != NULL) in omap_udc_stop()
2136 static const char proc_filename[] = "driver/udc";
2300 spin_lock_irqsave(&udc->lock, flags); in proc_udc_show()
2312 "UDC rev %d.%d, fifo mode %d, gadget %s\n" in proc_udc_show()
2316 udc->driver ? udc->driver->driver.name : "(none)", in proc_udc_show()
2318 udc->transceiver in proc_udc_show()
2319 ? udc->transceiver->label in proc_udc_show()
2343 /* UDC controller registers */ in proc_udc_show()
2346 spin_unlock_irqrestore(&udc->lock, flags); in proc_udc_show()
2423 proc_ep_show(s, &udc->ep[0]); in proc_udc_show()
2425 list_for_each_entry(ep, &udc->gadget.ep_list, in proc_udc_show()
2432 spin_unlock_irqrestore(&udc->lock, flags); in proc_udc_show()
2471 ep = &udc->ep[addr & 0xf]; in omap_ep_setup()
2562 ep->udc = udc; in omap_ep_setup()
2590 list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); in omap_ep_setup()
2597 pullup_disable(udc); in omap_udc_release()
2598 if (!IS_ERR_OR_NULL(udc->transceiver)) { in omap_udc_release()
2599 usb_put_phy(udc->transceiver); in omap_udc_release()
2600 udc->transceiver = NULL; in omap_udc_release()
2604 if (udc->dc_clk) { in omap_udc_release()
2605 if (udc->clk_requested) in omap_udc_release()
2607 clk_unprepare(udc->hhc_clk); in omap_udc_release()
2608 clk_unprepare(udc->dc_clk); in omap_udc_release()
2609 clk_put(udc->hhc_clk); in omap_udc_release()
2610 clk_put(udc->dc_clk); in omap_udc_release()
2612 if (udc->done) in omap_udc_release()
2613 complete(udc->done); in omap_udc_release()
2614 kfree(udc); in omap_udc_release()
2633 udc = kzalloc(sizeof(*udc), GFP_KERNEL); in omap_udc_setup()
2634 if (!udc) in omap_udc_setup()
2637 spin_lock_init(&udc->lock); in omap_udc_setup()
2639 udc->gadget.ops = &omap_gadget_ops; in omap_udc_setup()
2640 udc->gadget.ep0 = &udc->ep[0].ep; in omap_udc_setup()
2641 INIT_LIST_HEAD(&udc->gadget.ep_list); in omap_udc_setup()
2642 INIT_LIST_HEAD(&udc->iso); in omap_udc_setup()
2643 udc->gadget.speed = USB_SPEED_UNKNOWN; in omap_udc_setup()
2644 udc->gadget.max_speed = USB_SPEED_FULL; in omap_udc_setup()
2645 udc->gadget.name = driver_name; in omap_udc_setup()
2646 udc->gadget.quirk_ep_out_aligned_size = 1; in omap_udc_setup()
2647 udc->transceiver = xceiv; in omap_udc_setup()
2652 list_del_init(&udc->ep[0].ep.ep_list); in omap_udc_setup()
2775 INFO("OMAP UDC rev %d.%d%s\n", in omap_udc_probe()
2848 ERR("unrecognized UDC HMC mode %d\n", hmc); in omap_udc_probe()
2861 /* "udc" is now valid */ in omap_udc_probe()
2862 pullup_disable(udc); in omap_udc_probe()
2864 udc->gadget.is_otg = (config->otg != 0); in omap_udc_probe()
2869 udc->clr_halt = UDC_RESET_EP | UDC_CLRDATA_TOGGLE; in omap_udc_probe()
2871 udc->clr_halt = UDC_RESET_EP; in omap_udc_probe()
2875 omap_udc_irq, 0, driver_name, udc); in omap_udc_probe()
2884 omap_udc_pio_irq, 0, "omap_udc pio", udc); in omap_udc_probe()
2892 omap_udc_iso_irq, 0, "omap_udc iso", udc); in omap_udc_probe()
2900 udc->dc_clk = dc_clk; in omap_udc_probe()
2901 udc->hhc_clk = hhc_clk; in omap_udc_probe()
2907 return usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, in omap_udc_probe()
2911 kfree(udc); in omap_udc_probe()
2912 udc = NULL; in omap_udc_probe()
2935 udc->done = &done; in omap_udc_remove()
2937 usb_del_gadget_udc(&udc->gadget); in omap_udc_remove()
2967 omap_pullup(&udc->gadget, 0); in omap_udc_suspend()
2976 omap_pullup(&udc->gadget, 1); in omap_udc_resume()
2980 return omap_wakeup(&udc->gadget); in omap_udc_resume()