Lines Matching refs:ci
52 static int reprime_dtd(struct ci_hdrc *ci, struct ci_hw_ep *hwep,
66 static inline int ep_to_bit(struct ci_hdrc *ci, int n) in ep_to_bit() argument
68 int fill = 16 - ci->hw_ep_max / 2; in ep_to_bit()
70 if (n >= ci->hw_ep_max / 2) in ep_to_bit()
83 static int hw_device_state(struct ci_hdrc *ci, u32 dma) in hw_device_state() argument
86 hw_write(ci, OP_ENDPTLISTADDR, ~0, dma); in hw_device_state()
88 hw_write(ci, OP_USBINTR, ~0, in hw_device_state()
91 hw_write(ci, OP_USBINTR, ~0, 0); in hw_device_state()
104 static int hw_ep_flush(struct ci_hdrc *ci, int num, int dir) in hw_ep_flush() argument
110 hw_write(ci, OP_ENDPTFLUSH, ~0, BIT(n)); in hw_ep_flush()
111 while (hw_read(ci, OP_ENDPTFLUSH, BIT(n))) in hw_ep_flush()
113 } while (hw_read(ci, OP_ENDPTSTAT, BIT(n))); in hw_ep_flush()
126 static int hw_ep_disable(struct ci_hdrc *ci, int num, int dir) in hw_ep_disable() argument
128 hw_write(ci, OP_ENDPTCTRL + num, in hw_ep_disable()
142 static int hw_ep_enable(struct ci_hdrc *ci, int num, int dir, int type) in hw_ep_enable() argument
165 hw_write(ci, OP_ENDPTCTRL + num, mask, data); in hw_ep_enable()
177 static int hw_ep_get_halt(struct ci_hdrc *ci, int num, int dir) in hw_ep_get_halt() argument
181 return hw_read(ci, OP_ENDPTCTRL + num, mask) ? 1 : 0; in hw_ep_get_halt()
193 static int hw_ep_prime(struct ci_hdrc *ci, int num, int dir, int is_ctrl) in hw_ep_prime() argument
200 if (is_ctrl && dir == RX && hw_read(ci, OP_ENDPTSETUPSTAT, BIT(num))) in hw_ep_prime()
203 hw_write(ci, OP_ENDPTPRIME, ~0, BIT(n)); in hw_ep_prime()
205 while (hw_read(ci, OP_ENDPTPRIME, BIT(n))) in hw_ep_prime()
207 if (is_ctrl && dir == RX && hw_read(ci, OP_ENDPTSETUPSTAT, BIT(num))) in hw_ep_prime()
224 static int hw_ep_set_halt(struct ci_hdrc *ci, int num, int dir, int value) in hw_ep_set_halt() argument
235 hw_write(ci, reg, mask_xs|mask_xr, in hw_ep_set_halt()
237 } while (value != hw_ep_get_halt(ci, num, dir)); in hw_ep_set_halt()
248 static int hw_port_is_high_speed(struct ci_hdrc *ci) in hw_port_is_high_speed() argument
250 return ci->hw_bank.lpm ? hw_read(ci, OP_DEVLC, DEVLC_PSPD) : in hw_port_is_high_speed()
251 hw_read(ci, OP_PORTSC, PORTSC_HSP); in hw_port_is_high_speed()
262 static int hw_test_and_clear_complete(struct ci_hdrc *ci, int n) in hw_test_and_clear_complete() argument
264 n = ep_to_bit(ci, n); in hw_test_and_clear_complete()
265 return hw_test_and_clear(ci, OP_ENDPTCOMPLETE, BIT(n)); in hw_test_and_clear_complete()
275 static u32 hw_test_and_clear_intr_active(struct ci_hdrc *ci) in hw_test_and_clear_intr_active() argument
277 u32 reg = hw_read_intr_status(ci) & hw_read_intr_enable(ci); in hw_test_and_clear_intr_active()
279 hw_write(ci, OP_USBSTS, ~0, reg); in hw_test_and_clear_intr_active()
290 static int hw_test_and_clear_setup_guard(struct ci_hdrc *ci) in hw_test_and_clear_setup_guard() argument
292 return hw_test_and_write(ci, OP_USBCMD, USBCMD_SUTW, 0); in hw_test_and_clear_setup_guard()
302 static int hw_test_and_set_setup_guard(struct ci_hdrc *ci) in hw_test_and_set_setup_guard() argument
304 return hw_test_and_write(ci, OP_USBCMD, USBCMD_SUTW, USBCMD_SUTW); in hw_test_and_set_setup_guard()
315 static void hw_usb_set_address(struct ci_hdrc *ci, u8 value) in hw_usb_set_address() argument
317 hw_write(ci, OP_DEVICEADDR, DEVICEADDR_USBADR, in hw_usb_set_address()
328 static int hw_usb_reset(struct ci_hdrc *ci) in hw_usb_reset() argument
330 hw_usb_set_address(ci, 0); in hw_usb_reset()
333 hw_write(ci, OP_ENDPTFLUSH, ~0, ~0); in hw_usb_reset()
336 hw_write(ci, OP_ENDPTSETUPSTAT, 0, 0); in hw_usb_reset()
339 hw_write(ci, OP_ENDPTCOMPLETE, 0, 0); in hw_usb_reset()
342 while (hw_read(ci, OP_ENDPTPRIME, ~0)) in hw_usb_reset()
515 dev_err(hwep->ci->dev, "not supported operation for sg\n"); in prepare_td_for_sg()
521 dev_err(hwep->ci->dev, "not page aligned sg buffer\n"); in prepare_td_for_sg()
552 struct ci_hdrc *ci = hwep->ci; in _hardware_enqueue() local
562 ret = usb_gadget_map_request_by_dev(ci->dev->parent, in _hardware_enqueue()
605 if (ci->rev == CI_REVISION_22) { in _hardware_enqueue()
606 if (!hw_read(ci, OP_ENDPTSTAT, BIT(n))) in _hardware_enqueue()
607 reprime_dtd(ci, hwep, prevlastnode); in _hardware_enqueue()
610 if (hw_read(ci, OP_ENDPTPRIME, BIT(n))) in _hardware_enqueue()
613 hw_write(ci, OP_USBCMD, USBCMD_ATDTW, USBCMD_ATDTW); in _hardware_enqueue()
614 tmp_stat = hw_read(ci, OP_ENDPTSTAT, BIT(n)); in _hardware_enqueue()
615 } while (!hw_read(ci, OP_USBCMD, USBCMD_ATDTW)); in _hardware_enqueue()
616 hw_write(ci, OP_USBCMD, USBCMD_ATDTW, 0); in _hardware_enqueue()
635 ret = hw_ep_prime(ci, hwep->num, hwep->dir, in _hardware_enqueue()
654 static int reprime_dtd(struct ci_hdrc *ci, struct ci_hw_ep *hwep, in reprime_dtd() argument
661 return hw_ep_prime(ci, hwep->num, hwep->dir, in reprime_dtd()
678 struct ci_hdrc *ci = hwep->ci; in _hardware_dequeue() local
691 if (ci->rev == CI_REVISION_24) in _hardware_dequeue()
692 if (!hw_read(ci, OP_ENDPTSTAT, BIT(n))) in _hardware_dequeue()
693 reprime_dtd(ci, hwep, node); in _hardware_dequeue()
732 usb_gadget_unmap_request_by_dev(hwep->ci->dev->parent, in _hardware_dequeue()
758 hw_ep_flush(hwep->ci, hwep->num, hwep->dir); in _ep_nuke()
812 retval |= hw_ep_set_halt(hwep->ci, hwep->num, hwep->dir, value); in _ep_set_halt()
836 struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget); in _gadget_stop_activity() local
843 usb_ep_fifo_flush(&ci->ep0out->ep); in _gadget_stop_activity()
844 usb_ep_fifo_flush(&ci->ep0in->ep); in _gadget_stop_activity()
851 if (ci->status != NULL) { in _gadget_stop_activity()
852 usb_ep_free_request(&ci->ep0in->ep, ci->status); in _gadget_stop_activity()
853 ci->status = NULL; in _gadget_stop_activity()
856 spin_lock_irqsave(&ci->lock, flags); in _gadget_stop_activity()
857 ci->gadget.speed = USB_SPEED_UNKNOWN; in _gadget_stop_activity()
858 ci->remote_wakeup = 0; in _gadget_stop_activity()
859 ci->suspended = 0; in _gadget_stop_activity()
860 spin_unlock_irqrestore(&ci->lock, flags); in _gadget_stop_activity()
874 static void isr_reset_handler(struct ci_hdrc *ci) in isr_reset_handler() argument
875 __releases(ci->lock) in isr_reset_handler()
876 __acquires(ci->lock) in isr_reset_handler()
880 spin_unlock(&ci->lock); in isr_reset_handler()
881 if (ci->gadget.speed != USB_SPEED_UNKNOWN) in isr_reset_handler()
882 usb_gadget_udc_reset(&ci->gadget, ci->driver); in isr_reset_handler()
884 retval = _gadget_stop_activity(&ci->gadget); in isr_reset_handler()
888 retval = hw_usb_reset(ci); in isr_reset_handler()
892 ci->status = usb_ep_alloc_request(&ci->ep0in->ep, GFP_ATOMIC); in isr_reset_handler()
893 if (ci->status == NULL) in isr_reset_handler()
897 spin_lock(&ci->lock); in isr_reset_handler()
900 dev_err(ci->dev, "error: %i\n", retval); in isr_reset_handler()
933 struct ci_hdrc *ci = hwep->ci; in _ep_queue() local
941 hwep = (ci->ep0_dir == RX) ? in _ep_queue()
942 ci->ep0out : ci->ep0in; in _ep_queue()
945 dev_warn(hwep->ci->dev, "endpoint ctrl %X nuked\n", in _ep_queue()
952 dev_err(hwep->ci->dev, "request length too big for isochronous\n"); in _ep_queue()
958 dev_err(hwep->ci->dev, "request already in queue\n"); in _ep_queue()
983 static int isr_get_status_response(struct ci_hdrc *ci, in isr_get_status_response() argument
988 struct ci_hw_ep *hwep = ci->ep0in; in isr_get_status_response()
1011 *(u16 *)req->buf = (ci->remote_wakeup << 1) | in isr_get_status_response()
1012 ci->gadget.is_selfpowered; in isr_get_status_response()
1018 *(u16 *)req->buf = hw_ep_get_halt(ci, num, dir); in isr_get_status_response()
1048 struct ci_hdrc *ci = req->context; in isr_setup_status_complete() local
1051 if (ci->setaddr) { in isr_setup_status_complete()
1052 hw_usb_set_address(ci, ci->address); in isr_setup_status_complete()
1053 ci->setaddr = false; in isr_setup_status_complete()
1054 if (ci->address) in isr_setup_status_complete()
1055 usb_gadget_set_state(&ci->gadget, USB_STATE_ADDRESS); in isr_setup_status_complete()
1058 spin_lock_irqsave(&ci->lock, flags); in isr_setup_status_complete()
1059 if (ci->test_mode) in isr_setup_status_complete()
1060 hw_port_test_set(ci, ci->test_mode); in isr_setup_status_complete()
1061 spin_unlock_irqrestore(&ci->lock, flags); in isr_setup_status_complete()
1070 static int isr_setup_status_phase(struct ci_hdrc *ci) in isr_setup_status_phase() argument
1080 if (WARN_ON_ONCE(!ci->status)) in isr_setup_status_phase()
1083 hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in; in isr_setup_status_phase()
1084 ci->status->context = ci; in isr_setup_status_phase()
1085 ci->status->complete = isr_setup_status_complete; in isr_setup_status_phase()
1087 return _ep_queue(&hwep->ep, ci->status, GFP_ATOMIC); in isr_setup_status_phase()
1115 hweptemp = hwep->ci->ep0in; in isr_tr_complete_low()
1127 static int otg_a_alt_hnp_support(struct ci_hdrc *ci) in otg_a_alt_hnp_support() argument
1129 dev_warn(&ci->gadget.dev, in otg_a_alt_hnp_support()
1131 return isr_setup_status_phase(ci); in otg_a_alt_hnp_support()
1140 static void isr_setup_packet_handler(struct ci_hdrc *ci) in isr_setup_packet_handler() argument
1141 __releases(ci->lock) in isr_setup_packet_handler()
1142 __acquires(ci->lock) in isr_setup_packet_handler()
1144 struct ci_hw_ep *hwep = &ci->ci_hw_ep[0]; in isr_setup_packet_handler()
1153 _ep_nuke(ci->ep0out); in isr_setup_packet_handler()
1154 _ep_nuke(ci->ep0in); in isr_setup_packet_handler()
1158 hw_test_and_set_setup_guard(ci); in isr_setup_packet_handler()
1160 } while (!hw_test_and_clear_setup_guard(ci)); in isr_setup_packet_handler()
1164 ci->ep0_dir = (type & USB_DIR_IN) ? TX : RX; in isr_setup_packet_handler()
1177 num += ci->hw_ep_max / 2; in isr_setup_packet_handler()
1178 if (!ci->ci_hw_ep[num].wedge) { in isr_setup_packet_handler()
1179 spin_unlock(&ci->lock); in isr_setup_packet_handler()
1181 &ci->ci_hw_ep[num].ep); in isr_setup_packet_handler()
1182 spin_lock(&ci->lock); in isr_setup_packet_handler()
1186 err = isr_setup_status_phase(ci); in isr_setup_packet_handler()
1192 ci->remote_wakeup = 0; in isr_setup_packet_handler()
1193 err = isr_setup_status_phase(ci); in isr_setup_packet_handler()
1207 err = isr_get_status_response(ci, &req); in isr_setup_packet_handler()
1215 ci->address = (u8)le16_to_cpu(req.wValue); in isr_setup_packet_handler()
1216 ci->setaddr = true; in isr_setup_packet_handler()
1217 err = isr_setup_status_phase(ci); in isr_setup_packet_handler()
1229 num += ci->hw_ep_max / 2; in isr_setup_packet_handler()
1231 spin_unlock(&ci->lock); in isr_setup_packet_handler()
1232 err = _ep_set_halt(&ci->ci_hw_ep[num].ep, 1, false); in isr_setup_packet_handler()
1233 spin_lock(&ci->lock); in isr_setup_packet_handler()
1235 isr_setup_status_phase(ci); in isr_setup_packet_handler()
1241 ci->remote_wakeup = 1; in isr_setup_packet_handler()
1242 err = isr_setup_status_phase(ci); in isr_setup_packet_handler()
1252 ci->test_mode = tmode; in isr_setup_packet_handler()
1254 ci); in isr_setup_packet_handler()
1261 if (ci_otg_is_fsm_mode(ci)) { in isr_setup_packet_handler()
1262 ci->gadget.b_hnp_enable = 1; in isr_setup_packet_handler()
1264 ci); in isr_setup_packet_handler()
1268 if (ci_otg_is_fsm_mode(ci)) in isr_setup_packet_handler()
1269 err = otg_a_alt_hnp_support(ci); in isr_setup_packet_handler()
1272 if (ci_otg_is_fsm_mode(ci)) { in isr_setup_packet_handler()
1273 ci->gadget.a_hnp_support = 1; in isr_setup_packet_handler()
1275 ci); in isr_setup_packet_handler()
1288 ci->ep0_dir = TX; in isr_setup_packet_handler()
1290 spin_unlock(&ci->lock); in isr_setup_packet_handler()
1291 err = ci->driver->setup(&ci->gadget, &req); in isr_setup_packet_handler()
1292 spin_lock(&ci->lock); in isr_setup_packet_handler()
1297 spin_unlock(&ci->lock); in isr_setup_packet_handler()
1299 dev_err(ci->dev, "error: _ep_set_halt\n"); in isr_setup_packet_handler()
1300 spin_lock(&ci->lock); in isr_setup_packet_handler()
1310 static void isr_tr_complete_handler(struct ci_hdrc *ci) in isr_tr_complete_handler() argument
1311 __releases(ci->lock) in isr_tr_complete_handler()
1312 __acquires(ci->lock) in isr_tr_complete_handler()
1317 for (i = 0; i < ci->hw_ep_max; i++) { in isr_tr_complete_handler()
1318 struct ci_hw_ep *hwep = &ci->ci_hw_ep[i]; in isr_tr_complete_handler()
1323 if (hw_test_and_clear_complete(ci, i)) { in isr_tr_complete_handler()
1327 err = isr_setup_status_phase(ci); in isr_tr_complete_handler()
1329 spin_unlock(&ci->lock); in isr_tr_complete_handler()
1331 dev_err(ci->dev, in isr_tr_complete_handler()
1333 spin_lock(&ci->lock); in isr_tr_complete_handler()
1340 hw_test_and_clear(ci, OP_ENDPTSETUPSTAT, BIT(0))) in isr_tr_complete_handler()
1341 isr_setup_packet_handler(ci); in isr_tr_complete_handler()
1369 dev_warn(hwep->ci->dev, "enabling a non-empty endpoint!\n"); in ep_enable()
1400 dev_err(hwep->ci->dev, "Set control xfer at non-ep0\n"); in ep_enable()
1409 retval |= hw_ep_enable(hwep->ci, hwep->num, hwep->dir, in ep_enable()
1433 if (hwep->ci->gadget.speed == USB_SPEED_UNKNOWN) { in ep_disable()
1443 retval |= hw_ep_disable(hwep->ci, hwep->num, hwep->dir); in ep_disable()
1492 dev_err(hwep->ci->dev, "freeing queued request\n"); in ep_free_request()
1526 if (hwep->ci->gadget.speed == USB_SPEED_UNKNOWN) { in ep_queue()
1553 if (hwep->ci->gadget.speed != USB_SPEED_UNKNOWN) in ep_dequeue()
1554 hw_ep_flush(hwep->ci, hwep->num, hwep->dir); in ep_dequeue()
1565 usb_gadget_unmap_request(&hwep->ci->gadget, req, hwep->dir); in ep_dequeue()
1620 dev_err(hwep->ci->dev, "%02X: -EINVAL\n", _usb_addr(hwep)); in ep_fifo_flush()
1625 if (hwep->ci->gadget.speed == USB_SPEED_UNKNOWN) { in ep_fifo_flush()
1630 hw_ep_flush(hwep->ci, hwep->num, hwep->dir); in ep_fifo_flush()
1659 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_hdrc_gadget_connect() local
1662 pm_runtime_get_sync(ci->dev); in ci_hdrc_gadget_connect()
1663 hw_device_reset(ci); in ci_hdrc_gadget_connect()
1664 spin_lock_irq(&ci->lock); in ci_hdrc_gadget_connect()
1665 if (ci->driver) { in ci_hdrc_gadget_connect()
1666 hw_device_state(ci, ci->ep0out->qh.dma); in ci_hdrc_gadget_connect()
1668 spin_unlock_irq(&ci->lock); in ci_hdrc_gadget_connect()
1671 spin_unlock_irq(&ci->lock); in ci_hdrc_gadget_connect()
1675 if (ci->driver) in ci_hdrc_gadget_connect()
1676 ci->driver->disconnect(&ci->gadget); in ci_hdrc_gadget_connect()
1677 hw_device_state(ci, 0); in ci_hdrc_gadget_connect()
1678 if (ci->platdata->notify_event) in ci_hdrc_gadget_connect()
1679 ci->platdata->notify_event(ci, in ci_hdrc_gadget_connect()
1681 _gadget_stop_activity(&ci->gadget); in ci_hdrc_gadget_connect()
1682 pm_runtime_put_sync(ci->dev); in ci_hdrc_gadget_connect()
1689 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_udc_vbus_session() local
1693 spin_lock_irqsave(&ci->lock, flags); in ci_udc_vbus_session()
1694 ci->vbus_active = is_active; in ci_udc_vbus_session()
1695 spin_unlock_irqrestore(&ci->lock, flags); in ci_udc_vbus_session()
1697 if (ci->usb_phy) in ci_udc_vbus_session()
1698 usb_phy_set_charger_state(ci->usb_phy, is_active ? in ci_udc_vbus_session()
1701 if (ci->platdata->notify_event) in ci_udc_vbus_session()
1702 ret = ci->platdata->notify_event(ci, in ci_udc_vbus_session()
1705 if (ci->driver) in ci_udc_vbus_session()
1713 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_udc_wakeup() local
1717 spin_lock_irqsave(&ci->lock, flags); in ci_udc_wakeup()
1718 if (ci->gadget.speed == USB_SPEED_UNKNOWN) { in ci_udc_wakeup()
1719 spin_unlock_irqrestore(&ci->lock, flags); in ci_udc_wakeup()
1722 if (!ci->remote_wakeup) { in ci_udc_wakeup()
1726 if (!hw_read(ci, OP_PORTSC, PORTSC_SUSP)) { in ci_udc_wakeup()
1730 hw_write(ci, OP_PORTSC, PORTSC_FPR, PORTSC_FPR); in ci_udc_wakeup()
1732 spin_unlock_irqrestore(&ci->lock, flags); in ci_udc_wakeup()
1738 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_udc_vbus_draw() local
1740 if (ci->usb_phy) in ci_udc_vbus_draw()
1741 return usb_phy_set_power(ci->usb_phy, ma); in ci_udc_vbus_draw()
1747 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_udc_selfpowered() local
1748 struct ci_hw_ep *hwep = ci->ep0in; in ci_udc_selfpowered()
1763 struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget); in ci_udc_pullup() local
1769 if (ci_otg_is_fsm_mode(ci) || ci->role == CI_ROLE_HOST) in ci_udc_pullup()
1772 pm_runtime_get_sync(ci->dev); in ci_udc_pullup()
1774 hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); in ci_udc_pullup()
1776 hw_write(ci, OP_USBCMD, USBCMD_RS, 0); in ci_udc_pullup()
1777 pm_runtime_put_sync(ci->dev); in ci_udc_pullup()
1791 struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget); in ci_udc_match_ep() local
1795 list_for_each_entry_reverse(ep, &ci->gadget.ep_list, ep_list) { in ci_udc_match_ep()
1820 static int init_eps(struct ci_hdrc *ci) in init_eps() argument
1824 for (i = 0; i < ci->hw_ep_max/2; i++) in init_eps()
1826 int k = i + j * ci->hw_ep_max/2; in init_eps()
1827 struct ci_hw_ep *hwep = &ci->ci_hw_ep[k]; in init_eps()
1832 hwep->ci = ci; in init_eps()
1833 hwep->lock = &ci->lock; in init_eps()
1834 hwep->td_pool = ci->td_pool; in init_eps()
1860 hwep->qh.ptr = dma_pool_zalloc(ci->qh_pool, GFP_KERNEL, in init_eps()
1871 ci->ep0out = hwep; in init_eps()
1873 ci->ep0in = hwep; in init_eps()
1879 list_add_tail(&hwep->ep.ep_list, &ci->gadget.ep_list); in init_eps()
1885 static void destroy_eps(struct ci_hdrc *ci) in destroy_eps() argument
1889 for (i = 0; i < ci->hw_ep_max; i++) { in destroy_eps()
1890 struct ci_hw_ep *hwep = &ci->ci_hw_ep[i]; in destroy_eps()
1894 dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma); in destroy_eps()
1908 struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget); in ci_udc_start() local
1914 ci->ep0out->ep.desc = &ctrl_endpt_out_desc; in ci_udc_start()
1915 retval = usb_ep_enable(&ci->ep0out->ep); in ci_udc_start()
1919 ci->ep0in->ep.desc = &ctrl_endpt_in_desc; in ci_udc_start()
1920 retval = usb_ep_enable(&ci->ep0in->ep); in ci_udc_start()
1924 ci->driver = driver; in ci_udc_start()
1927 if (ci_otg_is_fsm_mode(ci) && ci->fsm.id) { in ci_udc_start()
1928 ci_hdrc_otg_fsm_start(ci); in ci_udc_start()
1932 if (ci->vbus_active) in ci_udc_start()
1935 usb_udc_vbus_handler(&ci->gadget, false); in ci_udc_start()
1940 static void ci_udc_stop_for_otg_fsm(struct ci_hdrc *ci) in ci_udc_stop_for_otg_fsm() argument
1942 if (!ci_otg_is_fsm_mode(ci)) in ci_udc_stop_for_otg_fsm()
1945 mutex_lock(&ci->fsm.lock); in ci_udc_stop_for_otg_fsm()
1946 if (ci->fsm.otg->state == OTG_STATE_A_PERIPHERAL) { in ci_udc_stop_for_otg_fsm()
1947 ci->fsm.a_bidl_adis_tmout = 1; in ci_udc_stop_for_otg_fsm()
1948 ci_hdrc_otg_fsm_start(ci); in ci_udc_stop_for_otg_fsm()
1949 } else if (ci->fsm.otg->state == OTG_STATE_B_PERIPHERAL) { in ci_udc_stop_for_otg_fsm()
1950 ci->fsm.protocol = PROTO_UNDEF; in ci_udc_stop_for_otg_fsm()
1951 ci->fsm.otg->state = OTG_STATE_UNDEFINED; in ci_udc_stop_for_otg_fsm()
1953 mutex_unlock(&ci->fsm.lock); in ci_udc_stop_for_otg_fsm()
1961 struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget); in ci_udc_stop() local
1964 spin_lock_irqsave(&ci->lock, flags); in ci_udc_stop()
1965 ci->driver = NULL; in ci_udc_stop()
1967 if (ci->vbus_active) { in ci_udc_stop()
1968 hw_device_state(ci, 0); in ci_udc_stop()
1969 spin_unlock_irqrestore(&ci->lock, flags); in ci_udc_stop()
1970 if (ci->platdata->notify_event) in ci_udc_stop()
1971 ci->platdata->notify_event(ci, in ci_udc_stop()
1973 _gadget_stop_activity(&ci->gadget); in ci_udc_stop()
1974 spin_lock_irqsave(&ci->lock, flags); in ci_udc_stop()
1975 pm_runtime_put(ci->dev); in ci_udc_stop()
1978 spin_unlock_irqrestore(&ci->lock, flags); in ci_udc_stop()
1980 ci_udc_stop_for_otg_fsm(ci); in ci_udc_stop()
1993 static irqreturn_t udc_irq(struct ci_hdrc *ci) in udc_irq() argument
1998 if (ci == NULL) in udc_irq()
2001 spin_lock(&ci->lock); in udc_irq()
2003 if (ci->platdata->flags & CI_HDRC_REGS_SHARED) { in udc_irq()
2004 if (hw_read(ci, OP_USBMODE, USBMODE_CM) != in udc_irq()
2006 spin_unlock(&ci->lock); in udc_irq()
2010 intr = hw_test_and_clear_intr_active(ci); in udc_irq()
2015 isr_reset_handler(ci); in udc_irq()
2018 ci->gadget.speed = hw_port_is_high_speed(ci) ? in udc_irq()
2020 if (ci->suspended) { in udc_irq()
2021 if (ci->driver->resume) { in udc_irq()
2022 spin_unlock(&ci->lock); in udc_irq()
2023 ci->driver->resume(&ci->gadget); in udc_irq()
2024 spin_lock(&ci->lock); in udc_irq()
2026 ci->suspended = 0; in udc_irq()
2027 usb_gadget_set_state(&ci->gadget, in udc_irq()
2028 ci->resume_state); in udc_irq()
2033 isr_tr_complete_handler(ci); in udc_irq()
2035 if ((USBi_SLI & intr) && !(ci->suspended)) { in udc_irq()
2036 ci->suspended = 1; in udc_irq()
2037 ci->resume_state = ci->gadget.state; in udc_irq()
2038 if (ci->gadget.speed != USB_SPEED_UNKNOWN && in udc_irq()
2039 ci->driver->suspend) { in udc_irq()
2040 spin_unlock(&ci->lock); in udc_irq()
2041 ci->driver->suspend(&ci->gadget); in udc_irq()
2042 spin_lock(&ci->lock); in udc_irq()
2044 usb_gadget_set_state(&ci->gadget, in udc_irq()
2051 spin_unlock(&ci->lock); in udc_irq()
2060 static int udc_start(struct ci_hdrc *ci) in udc_start() argument
2062 struct device *dev = ci->dev; in udc_start()
2063 struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps; in udc_start()
2066 ci->gadget.ops = &usb_gadget_ops; in udc_start()
2067 ci->gadget.speed = USB_SPEED_UNKNOWN; in udc_start()
2068 ci->gadget.max_speed = USB_SPEED_HIGH; in udc_start()
2069 ci->gadget.name = ci->platdata->name; in udc_start()
2070 ci->gadget.otg_caps = otg_caps; in udc_start()
2071 ci->gadget.sg_supported = 1; in udc_start()
2072 ci->gadget.irq = ci->irq; in udc_start()
2074 if (ci->platdata->flags & CI_HDRC_REQUIRES_ALIGNED_DMA) in udc_start()
2075 ci->gadget.quirk_avoids_skb_reserve = 1; in udc_start()
2077 if (ci->is_otg && (otg_caps->hnp_support || otg_caps->srp_support || in udc_start()
2079 ci->gadget.is_otg = 1; in udc_start()
2081 INIT_LIST_HEAD(&ci->gadget.ep_list); in udc_start()
2084 ci->qh_pool = dma_pool_create("ci_hw_qh", dev->parent, in udc_start()
2087 if (ci->qh_pool == NULL) in udc_start()
2090 ci->td_pool = dma_pool_create("ci_hw_td", dev->parent, in udc_start()
2093 if (ci->td_pool == NULL) { in udc_start()
2098 retval = init_eps(ci); in udc_start()
2102 ci->gadget.ep0 = &ci->ep0in->ep; in udc_start()
2104 retval = usb_add_gadget_udc(dev, &ci->gadget); in udc_start()
2111 destroy_eps(ci); in udc_start()
2113 dma_pool_destroy(ci->td_pool); in udc_start()
2115 dma_pool_destroy(ci->qh_pool); in udc_start()
2124 void ci_hdrc_gadget_destroy(struct ci_hdrc *ci) in ci_hdrc_gadget_destroy() argument
2126 if (!ci->roles[CI_ROLE_GADGET]) in ci_hdrc_gadget_destroy()
2129 usb_del_gadget_udc(&ci->gadget); in ci_hdrc_gadget_destroy()
2131 destroy_eps(ci); in ci_hdrc_gadget_destroy()
2133 dma_pool_destroy(ci->td_pool); in ci_hdrc_gadget_destroy()
2134 dma_pool_destroy(ci->qh_pool); in ci_hdrc_gadget_destroy()
2137 static int udc_id_switch_for_device(struct ci_hdrc *ci) in udc_id_switch_for_device() argument
2139 if (ci->platdata->pins_device) in udc_id_switch_for_device()
2140 pinctrl_select_state(ci->platdata->pctl, in udc_id_switch_for_device()
2141 ci->platdata->pins_device); in udc_id_switch_for_device()
2143 if (ci->is_otg) in udc_id_switch_for_device()
2145 hw_write_otgsc(ci, OTGSC_BSVIS | OTGSC_BSVIE, in udc_id_switch_for_device()
2151 static void udc_id_switch_for_host(struct ci_hdrc *ci) in udc_id_switch_for_host() argument
2157 if (ci->is_otg) in udc_id_switch_for_host()
2158 hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, OTGSC_BSVIS); in udc_id_switch_for_host()
2160 ci->vbus_active = 0; in udc_id_switch_for_host()
2162 if (ci->platdata->pins_device && ci->platdata->pins_default) in udc_id_switch_for_host()
2163 pinctrl_select_state(ci->platdata->pctl, in udc_id_switch_for_host()
2164 ci->platdata->pins_default); in udc_id_switch_for_host()
2173 int ci_hdrc_gadget_init(struct ci_hdrc *ci) in ci_hdrc_gadget_init() argument
2178 if (!hw_read(ci, CAP_DCCPARAMS, DCCPARAMS_DC)) in ci_hdrc_gadget_init()
2181 rdrv = devm_kzalloc(ci->dev, sizeof(*rdrv), GFP_KERNEL); in ci_hdrc_gadget_init()
2190 ret = udc_start(ci); in ci_hdrc_gadget_init()
2192 ci->roles[CI_ROLE_GADGET] = rdrv; in ci_hdrc_gadget_init()