Lines Matching full:udc
3 * omap_udc.c -- for OMAP full speed udc; most chips support OTG.
56 #define DRIVER_DESC "OMAP UDC driver"
63 * The OMAP UDC needs _very_ early endpoint setup: before enabling the
67 * optional new "UDC not yet running" state to the gadget driver model,
146 struct omap_udc *udc; in omap_ep_enable() local
190 udc = ep->udc; in omap_ep_enable()
191 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) { in omap_ep_enable()
196 spin_lock_irqsave(&udc->lock, flags); in omap_ep_enable()
208 omap_writew(udc->clr_halt, UDC_CTRL); in omap_ep_enable()
213 list_add(&ep->iso, &udc->iso); in omap_ep_enable()
228 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_enable()
246 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_disable()
255 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_disable()
290 struct omap_udc *udc = ep->udc; in done() local
301 usb_gadget_unmap_request(&udc->gadget, &req->req, in done()
313 spin_unlock(&ep->udc->lock); in done()
315 spin_lock(&ep->udc->lock); in done()
509 * When DMA completion isn't request completion, the UDC continues with
633 static void dma_irq(struct omap_udc *udc, u16 irq_src) in dma_irq() argument
641 ep = &udc->ep[16 + UDC_DMA_TX_SRC(dman_stat)]; in dma_irq()
660 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
678 ep = &udc->ep[UDC_DMA_RX_SRC(dman_stat)]; in dma_irq()
867 struct omap_udc *udc; in omap_ep_queue() local
899 udc = ep->udc; in omap_ep_queue()
900 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) in omap_ep_queue()
904 usb_gadget_map_request(&udc->gadget, &req->req, in omap_ep_queue()
910 spin_lock_irqsave(&udc->lock, flags); in omap_ep_queue()
926 if (!udc->ep0_pending || !list_empty(&ep->queue)) { in omap_ep_queue()
927 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
932 is_in = udc->ep0_in; in omap_ep_queue()
939 if (udc->ep0_set_config) { in omap_ep_queue()
943 if (!udc->ep0_reset_config) in omap_ep_queue()
960 udc->ep0_pending = 0; in omap_ep_queue()
969 if (udc->ep0_setup) in omap_ep_queue()
998 spin_unlock_irqrestore(&udc->lock, flags); in omap_ep_queue()
1012 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_dequeue()
1020 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1034 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_dequeue()
1046 spin_lock_irqsave(&ep->udc->lock, flags); in omap_ep_set_halt()
1050 if (!ep->udc->ep0_pending) in omap_ep_set_halt()
1053 if (ep->udc->ep0_set_config) { in omap_ep_set_halt()
1058 ep->udc->ep0_pending = 0; in omap_ep_set_halt()
1095 omap_writew(ep->udc->clr_halt, UDC_CTRL); in omap_ep_set_halt()
1107 spin_unlock_irqrestore(&ep->udc->lock, flags); in omap_ep_set_halt()
1136 struct omap_udc *udc; in omap_wakeup() local
1140 udc = container_of(gadget, struct omap_udc, gadget); in omap_wakeup()
1142 spin_lock_irqsave(&udc->lock, flags); in omap_wakeup()
1143 if (udc->devstat & UDC_SUS) { in omap_wakeup()
1147 if (udc->devstat & (UDC_B_HNP_ENABLE|UDC_R_WK_OK)) { in omap_wakeup()
1154 } else if (!(udc->devstat & UDC_ATT)) { in omap_wakeup()
1155 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_wakeup()
1156 retval = otg_start_srp(udc->transceiver->otg); in omap_wakeup()
1158 spin_unlock_irqrestore(&udc->lock, flags); in omap_wakeup()
1166 struct omap_udc *udc; in omap_set_selfpowered() local
1171 udc = container_of(gadget, struct omap_udc, gadget); in omap_set_selfpowered()
1172 spin_lock_irqsave(&udc->lock, flags); in omap_set_selfpowered()
1179 spin_unlock_irqrestore(&udc->lock, flags); in omap_set_selfpowered()
1184 static int can_pullup(struct omap_udc *udc) in can_pullup() argument
1186 return udc->driver && udc->softconnect && udc->vbus_active; in can_pullup()
1189 static void pullup_enable(struct omap_udc *udc) in pullup_enable() argument
1196 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_enable()
1206 static void pullup_disable(struct omap_udc *udc) in pullup_disable() argument
1210 if (!gadget_is_otg(&udc->gadget) && !cpu_is_omap15xx()) { in pullup_disable()
1223 static struct omap_udc *udc; variable
1227 if (udc == NULL || udc->dc_clk == NULL || udc->hhc_clk == NULL) in omap_udc_enable_clock()
1231 clk_enable(udc->dc_clk); in omap_udc_enable_clock()
1232 clk_enable(udc->hhc_clk); in omap_udc_enable_clock()
1235 clk_disable(udc->hhc_clk); in omap_udc_enable_clock()
1236 clk_disable(udc->dc_clk); in omap_udc_enable_clock()
1246 struct omap_udc *udc; in omap_vbus_session() local
1250 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_session()
1251 spin_lock_irqsave(&udc->lock, flags); in omap_vbus_session()
1253 udc->vbus_active = (is_active != 0); in omap_vbus_session()
1263 if (udc->dc_clk != NULL && is_active) { in omap_vbus_session()
1264 if (!udc->clk_requested) { in omap_vbus_session()
1266 udc->clk_requested = 1; in omap_vbus_session()
1269 if (can_pullup(udc)) in omap_vbus_session()
1270 pullup_enable(udc); in omap_vbus_session()
1272 pullup_disable(udc); in omap_vbus_session()
1273 if (udc->dc_clk != NULL && !is_active) { in omap_vbus_session()
1274 if (udc->clk_requested) { in omap_vbus_session()
1276 udc->clk_requested = 0; in omap_vbus_session()
1279 spin_unlock_irqrestore(&udc->lock, flags); in omap_vbus_session()
1285 struct omap_udc *udc; in omap_vbus_draw() local
1287 udc = container_of(gadget, struct omap_udc, gadget); in omap_vbus_draw()
1288 if (!IS_ERR_OR_NULL(udc->transceiver)) in omap_vbus_draw()
1289 return usb_phy_set_power(udc->transceiver, mA); in omap_vbus_draw()
1295 struct omap_udc *udc; in omap_pullup() local
1298 udc = container_of(gadget, struct omap_udc, gadget); in omap_pullup()
1299 spin_lock_irqsave(&udc->lock, flags); in omap_pullup()
1300 udc->softconnect = (is_on != 0); in omap_pullup()
1301 if (can_pullup(udc)) in omap_pullup()
1302 pullup_enable(udc); in omap_pullup()
1304 pullup_disable(udc); in omap_pullup()
1305 spin_unlock_irqrestore(&udc->lock, flags); in omap_pullup()
1326 /* dequeue ALL requests; caller holds udc->lock */
1347 /* caller holds udc->lock */
1348 static void udc_quiesce(struct omap_udc *udc) in udc_quiesce() argument
1352 udc->gadget.speed = USB_SPEED_UNKNOWN; in udc_quiesce()
1353 nuke(&udc->ep[0], -ESHUTDOWN); in udc_quiesce()
1354 list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) in udc_quiesce()
1360 static void update_otg(struct omap_udc *udc) in update_otg() argument
1364 if (!gadget_is_otg(&udc->gadget)) in update_otg()
1372 udc->gadget.b_hnp_enable = !!(devstat & UDC_B_HNP_ENABLE); in update_otg()
1373 udc->gadget.a_hnp_support = !!(devstat & UDC_A_HNP_SUPPORT); in update_otg()
1374 udc->gadget.a_alt_hnp_support = !!(devstat & UDC_A_ALT_HNP_SUPPORT); in update_otg()
1379 if (udc->gadget.b_hnp_enable) { in update_otg()
1389 static void ep0_irq(struct omap_udc *udc, u16 irq_src) in ep0_irq() argument
1391 struct omap_ep *ep0 = &udc->ep[0]; in ep0_irq()
1428 if (udc->ep0_in) { in ep0_irq()
1435 if (!req && udc->ep0_pending) { in ep0_irq()
1440 udc->ep0_pending = 0; in ep0_irq()
1465 if (!udc->ep0_in) { in ep0_irq()
1473 udc->ep0_pending = 0; in ep0_irq()
1488 udc->ep0_pending = 0; in ep0_irq()
1532 udc->ep0_in = (u.r.bRequestType & USB_DIR_IN) != 0; in ep0_irq()
1533 udc->ep0_set_config = 0; in ep0_irq()
1534 udc->ep0_pending = 1; in ep0_irq()
1539 /* udc needs to know when ep != 0 is valid */ in ep0_irq()
1544 udc->ep0_set_config = 1; in ep0_irq()
1545 udc->ep0_reset_config = (w_value == 0); in ep0_irq()
1548 /* update udc NOW since gadget driver may start in ep0_irq()
1552 if (udc->ep0_reset_config) in ep0_irq()
1556 update_otg(udc); in ep0_irq()
1565 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1573 omap_writew(udc->clr_halt, UDC_CTRL); in ep0_irq()
1594 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1618 udc->ep0_pending = 0; in ep0_irq()
1630 ep = &udc->ep[w_index & 0xf]; in ep0_irq()
1665 if (!udc->ep0_in && w_length) { in ep0_irq()
1693 udc->ep0_setup = 1; in ep0_irq()
1694 spin_unlock(&udc->lock); in ep0_irq()
1695 status = udc->driver->setup(&udc->gadget, &u.r); in ep0_irq()
1696 spin_lock(&udc->lock); in ep0_irq()
1697 udc->ep0_setup = 0; in ep0_irq()
1704 if (udc->ep0_set_config) { in ep0_irq()
1705 if (udc->ep0_reset_config) in ep0_irq()
1711 udc->ep0_pending = 0; in ep0_irq()
1720 static void devstate_irq(struct omap_udc *udc, u16 irq_src) in devstate_irq() argument
1725 change = devstat ^ udc->devstat; in devstate_irq()
1726 udc->devstat = devstat; in devstate_irq()
1729 udc_quiesce(udc); in devstate_irq()
1736 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1738 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1739 pullup_enable(udc); in devstate_irq()
1741 } else if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1742 udc->gadget.speed = USB_SPEED_UNKNOWN; in devstate_irq()
1743 if (IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1744 pullup_disable(udc); in devstate_irq()
1746 udc->driver->driver.name); in devstate_irq()
1747 if (udc->driver->disconnect) { in devstate_irq()
1748 spin_unlock(&udc->lock); in devstate_irq()
1749 udc->driver->disconnect(&udc->gadget); in devstate_irq()
1750 spin_lock(&udc->lock); in devstate_irq()
1760 udc->gadget.speed = USB_SPEED_FULL; in devstate_irq()
1762 udc->driver->driver.name); in devstate_irq()
1771 if (udc->gadget.speed != USB_SPEED_UNKNOWN) { in devstate_irq()
1775 update_otg(udc); in devstate_irq()
1777 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1778 && udc->driver->suspend) { in devstate_irq()
1779 spin_unlock(&udc->lock); in devstate_irq()
1780 udc->driver->suspend(&udc->gadget); in devstate_irq()
1781 spin_lock(&udc->lock); in devstate_irq()
1783 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1785 udc->transceiver, 1); in devstate_irq()
1788 if (!IS_ERR_OR_NULL(udc->transceiver)) in devstate_irq()
1790 udc->transceiver, 0); in devstate_irq()
1791 if (udc->gadget.speed == USB_SPEED_FULL in devstate_irq()
1792 && udc->driver->resume) { in devstate_irq()
1793 spin_unlock(&udc->lock); in devstate_irq()
1794 udc->driver->resume(&udc->gadget); in devstate_irq()
1795 spin_lock(&udc->lock); in devstate_irq()
1802 update_otg(udc); in devstate_irq()
1816 struct omap_udc *udc = _udc; in omap_udc_irq() local
1821 spin_lock_irqsave(&udc->lock, flags); in omap_udc_irq()
1848 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_irq()
1863 spin_lock_irqsave(&ep->udc->lock, flags); in pio_out_timer()
1883 spin_unlock_irqrestore(&ep->udc->lock, flags); in pio_out_timer()
1892 struct omap_udc *udc = _dev; in omap_udc_pio_irq() local
1896 spin_lock_irqsave(&udc->lock, flags); in omap_udc_pio_irq()
1905 ep = &udc->ep[epnum]; in omap_udc_pio_irq()
1941 ep = &udc->ep[16 + epnum]; in omap_udc_pio_irq()
1960 spin_unlock_irqrestore(&udc->lock, flags); in omap_udc_pio_irq()
1967 struct omap_udc *udc = _dev; in omap_udc_iso_irq() local
1972 spin_lock_irqsave(&udc->lock, flags); in omap_udc_iso_irq()
1975 list_for_each_entry(ep, &udc->iso, iso) { in omap_udc_iso_irq()
2025 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()
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_put(udc->hhc_clk); in omap_udc_release()
2608 clk_put(udc->dc_clk); in omap_udc_release()
2610 if (udc->done) in omap_udc_release()
2611 complete(udc->done); in omap_udc_release()
2612 kfree(udc); in omap_udc_release()
2631 udc = kzalloc(sizeof(*udc), GFP_KERNEL); in omap_udc_setup()
2632 if (!udc) in omap_udc_setup()
2635 spin_lock_init(&udc->lock); in omap_udc_setup()
2637 udc->gadget.ops = &omap_gadget_ops; in omap_udc_setup()
2638 udc->gadget.ep0 = &udc->ep[0].ep; in omap_udc_setup()
2639 INIT_LIST_HEAD(&udc->gadget.ep_list); in omap_udc_setup()
2640 INIT_LIST_HEAD(&udc->iso); in omap_udc_setup()
2641 udc->gadget.speed = USB_SPEED_UNKNOWN; in omap_udc_setup()
2642 udc->gadget.max_speed = USB_SPEED_FULL; in omap_udc_setup()
2643 udc->gadget.name = driver_name; in omap_udc_setup()
2644 udc->gadget.quirk_ep_out_aligned_size = 1; in omap_udc_setup()
2645 udc->transceiver = xceiv; in omap_udc_setup()
2650 list_del_init(&udc->ep[0].ep.ep_list); in omap_udc_setup()
2786 INFO("OMAP UDC rev %d.%d%s\n", in omap_udc_probe()
2859 ERR("unrecognized UDC HMC mode %d\n", hmc); in omap_udc_probe()
2872 /* "udc" is now valid */ in omap_udc_probe()
2873 pullup_disable(udc); in omap_udc_probe()
2875 udc->gadget.is_otg = (config->otg != 0); in omap_udc_probe()
2880 udc->clr_halt = UDC_RESET_EP | UDC_CLRDATA_TOGGLE; in omap_udc_probe()
2882 udc->clr_halt = UDC_RESET_EP; in omap_udc_probe()
2886 omap_udc_irq, 0, driver_name, udc); in omap_udc_probe()
2895 omap_udc_pio_irq, 0, "omap_udc pio", udc); in omap_udc_probe()
2903 omap_udc_iso_irq, 0, "omap_udc iso", udc); in omap_udc_probe()
2911 udc->dc_clk = dc_clk; in omap_udc_probe()
2912 udc->hhc_clk = hhc_clk; in omap_udc_probe()
2918 return usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, in omap_udc_probe()
2922 kfree(udc); in omap_udc_probe()
2923 udc = NULL; in omap_udc_probe()
2946 udc->done = &done; in omap_udc_remove()
2948 usb_del_gadget_udc(&udc->gadget); in omap_udc_remove()
2980 omap_pullup(&udc->gadget, 0); in omap_udc_suspend()
2989 omap_pullup(&udc->gadget, 1); in omap_udc_resume()
2993 return omap_wakeup(&udc->gadget); in omap_udc_resume()