Lines Matching refs:dwc
47 int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode) in dwc3_gadget_set_test_mode() argument
51 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_set_test_mode()
66 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_set_test_mode()
78 int dwc3_gadget_get_link_state(struct dwc3 *dwc) in dwc3_gadget_get_link_state() argument
82 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_get_link_state()
95 int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state) in dwc3_gadget_set_link_state() argument
104 if (dwc->revision >= DWC3_REVISION_194A) { in dwc3_gadget_set_link_state()
106 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_set_link_state()
117 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_set_link_state()
122 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_set_link_state()
128 if (dwc->revision >= DWC3_REVISION_194A) in dwc3_gadget_set_link_state()
134 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_set_link_state()
169 int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc) in dwc3_gadget_resize_tx_fifos() argument
177 if (!dwc->needs_fifo_resize) in dwc3_gadget_resize_tx_fifos()
180 ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7); in dwc3_gadget_resize_tx_fifos()
181 mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0); in dwc3_gadget_resize_tx_fifos()
192 for (num = 0; num < dwc->num_in_eps; num++) { in dwc3_gadget_resize_tx_fifos()
194 struct dwc3_ep *dep = dwc->eps[(num << 1) | 1]; in dwc3_gadget_resize_tx_fifos()
226 dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(num), fifo_size); in dwc3_gadget_resize_tx_fifos()
237 struct dwc3 *dwc = dep->dwc; in dwc3_gadget_giveback() local
262 if (dwc->ep0_bounced && dep->number == 0) in dwc3_gadget_giveback()
263 dwc->ep0_bounced = false; in dwc3_gadget_giveback()
265 usb_gadget_unmap_request(&dwc->gadget, &req->request, in dwc3_gadget_giveback()
268 dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n", in dwc3_gadget_giveback()
273 spin_unlock(&dwc->lock); in dwc3_gadget_giveback()
275 spin_lock(&dwc->lock); in dwc3_gadget_giveback()
278 int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param) in dwc3_send_gadget_generic_command() argument
285 dwc3_writel(dwc->regs, DWC3_DGCMDPAR, param); in dwc3_send_gadget_generic_command()
286 dwc3_writel(dwc->regs, DWC3_DGCMD, cmd | DWC3_DGCMD_CMDACT); in dwc3_send_gadget_generic_command()
289 reg = dwc3_readl(dwc->regs, DWC3_DGCMD); in dwc3_send_gadget_generic_command()
313 int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep, in dwc3_send_gadget_ep_cmd() argument
316 struct dwc3_ep *dep = dwc->eps[ep]; in dwc3_send_gadget_ep_cmd()
322 dwc3_writel(dwc->regs, DWC3_DEPCMDPAR0(ep), params->param0); in dwc3_send_gadget_ep_cmd()
323 dwc3_writel(dwc->regs, DWC3_DEPCMDPAR1(ep), params->param1); in dwc3_send_gadget_ep_cmd()
324 dwc3_writel(dwc->regs, DWC3_DEPCMDPAR2(ep), params->param2); in dwc3_send_gadget_ep_cmd()
326 dwc3_writel(dwc->regs, DWC3_DEPCMD(ep), cmd | DWC3_DEPCMD_CMDACT); in dwc3_send_gadget_ep_cmd()
328 reg = dwc3_readl(dwc->regs, DWC3_DEPCMD(ep)); in dwc3_send_gadget_ep_cmd()
363 struct dwc3 *dwc = dep->dwc; in dwc3_alloc_trb_pool() local
368 dep->trb_pool = dma_alloc_coherent(dwc->dev, in dwc3_alloc_trb_pool()
372 dev_err(dep->dwc->dev, "failed to allocate trb pool for %s\n", in dwc3_alloc_trb_pool()
382 struct dwc3 *dwc = dep->dwc; in dwc3_free_trb_pool() local
384 dma_free_coherent(dwc->dev, sizeof(struct dwc3_trb) * DWC3_TRB_NUM, in dwc3_free_trb_pool()
391 static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep);
425 static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep) in dwc3_gadget_start_config() argument
438 ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms); in dwc3_gadget_start_config()
443 struct dwc3_ep *dep = dwc->eps[i]; in dwc3_gadget_start_config()
448 ret = dwc3_gadget_set_xfer_resource(dwc, dep); in dwc3_gadget_start_config()
456 static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep, in dwc3_gadget_set_ep_config() argument
469 if (dwc->gadget.speed == USB_SPEED_SUPER) { in dwc3_gadget_set_ep_config()
515 return dwc3_send_gadget_ep_cmd(dwc, dep->number, in dwc3_gadget_set_ep_config()
519 static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep) in dwc3_gadget_set_xfer_resource() argument
527 return dwc3_send_gadget_ep_cmd(dwc, dep->number, in dwc3_gadget_set_xfer_resource()
543 struct dwc3 *dwc = dep->dwc; in __dwc3_gadget_ep_enable() local
550 ret = dwc3_gadget_start_config(dwc, dep); in __dwc3_gadget_ep_enable()
555 ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc, ignore, in __dwc3_gadget_ep_enable()
569 reg = dwc3_readl(dwc->regs, DWC3_DALEPENA); in __dwc3_gadget_ep_enable()
571 dwc3_writel(dwc->regs, DWC3_DALEPENA, reg); in __dwc3_gadget_ep_enable()
602 dev_err(dwc->dev, "invalid endpoint transfer type\n"); in __dwc3_gadget_ep_enable()
608 static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force);
609 static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep) in dwc3_remove_requests() argument
614 dwc3_stop_active_transfer(dwc, dep->number, true); in dwc3_remove_requests()
641 struct dwc3 *dwc = dep->dwc; in __dwc3_gadget_ep_disable() local
646 dwc3_remove_requests(dwc, dep); in __dwc3_gadget_ep_disable()
652 reg = dwc3_readl(dwc->regs, DWC3_DALEPENA); in __dwc3_gadget_ep_disable()
654 dwc3_writel(dwc->regs, DWC3_DALEPENA, reg); in __dwc3_gadget_ep_disable()
688 struct dwc3 *dwc; in dwc3_gadget_ep_enable() local
703 dwc = dep->dwc; in dwc3_gadget_ep_enable()
706 dev_WARN_ONCE(dwc->dev, true, "%s is already enabled\n", in dwc3_gadget_ep_enable()
711 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_enable()
713 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_enable()
721 struct dwc3 *dwc; in dwc3_gadget_ep_disable() local
731 dwc = dep->dwc; in dwc3_gadget_ep_disable()
734 dev_WARN_ONCE(dwc->dev, true, "%s is already disabled\n", in dwc3_gadget_ep_disable()
739 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_disable()
741 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_disable()
981 struct dwc3 *dwc = dep->dwc; in __dwc3_gadget_kick_transfer() local
1024 ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, ¶ms); in __dwc3_gadget_kick_transfer()
1026 dev_dbg(dwc->dev, "failed to send STARTTRANSFER command\n"); in __dwc3_gadget_kick_transfer()
1033 usb_gadget_unmap_request(&dwc->gadget, &req->request, in __dwc3_gadget_kick_transfer()
1042 dep->resource_index = dwc3_gadget_ep_get_transfer_index(dwc, in __dwc3_gadget_kick_transfer()
1050 static void __dwc3_gadget_start_isoc(struct dwc3 *dwc, in __dwc3_gadget_start_isoc() argument
1069 static void dwc3_gadget_start_isoc(struct dwc3 *dwc, in dwc3_gadget_start_isoc() argument
1077 __dwc3_gadget_start_isoc(dwc, dep, cur_uf); in dwc3_gadget_start_isoc()
1082 struct dwc3 *dwc = dep->dwc; in __dwc3_gadget_ep_queue() local
1104 ret = usb_gadget_map_request(&dwc->gadget, &req->request, in __dwc3_gadget_ep_queue()
1145 dwc3_stop_active_transfer(dwc, dep->number, true); in __dwc3_gadget_ep_queue()
1182 dev_dbg(dwc->dev, "%s: failed to kick transfers\n", in __dwc3_gadget_ep_queue()
1195 struct dwc3 *dwc = dep->dwc; in dwc3_gadget_ep_queue() local
1201 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_queue()
1203 dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n", in dwc3_gadget_ep_queue()
1218 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_queue()
1230 struct dwc3 *dwc = dep->dwc; in dwc3_gadget_ep_dequeue() local
1237 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_dequeue()
1251 dwc3_stop_active_transfer(dwc, dep->number, true); in dwc3_gadget_ep_dequeue()
1254 dev_err(dwc->dev, "request %p was not queued to %s\n", in dwc3_gadget_ep_dequeue()
1265 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_dequeue()
1273 struct dwc3 *dwc = dep->dwc; in __dwc3_gadget_ep_set_halt() local
1277 dev_err(dwc->dev, "%s is of Isochronous type\n", dep->name); in __dwc3_gadget_ep_set_halt()
1287 dev_dbg(dwc->dev, "%s: pending request, cannot halt\n", in __dwc3_gadget_ep_set_halt()
1292 ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, in __dwc3_gadget_ep_set_halt()
1295 dev_err(dwc->dev, "failed to set STALL on %s\n", in __dwc3_gadget_ep_set_halt()
1300 ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, in __dwc3_gadget_ep_set_halt()
1303 dev_err(dwc->dev, "failed to clear STALL on %s\n", in __dwc3_gadget_ep_set_halt()
1315 struct dwc3 *dwc = dep->dwc; in dwc3_gadget_ep_set_halt() local
1321 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_set_halt()
1323 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_set_halt()
1331 struct dwc3 *dwc = dep->dwc; in dwc3_gadget_ep_set_wedge() local
1335 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_ep_set_wedge()
1342 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_ep_set_wedge()
1381 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_get_frame() local
1384 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_get_frame()
1390 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_wakeup() local
1402 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_wakeup()
1410 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_wakeup()
1414 dev_dbg(dwc->dev, "no wakeup on SuperSpeed\n"); in dwc3_gadget_wakeup()
1426 dev_dbg(dwc->dev, "can't wakeup from link state %d\n", in dwc3_gadget_wakeup()
1432 ret = dwc3_gadget_set_link_state(dwc, DWC3_LINK_STATE_RECOV); in dwc3_gadget_wakeup()
1434 dev_err(dwc->dev, "failed to put link in Recovery\n"); in dwc3_gadget_wakeup()
1439 if (dwc->revision < DWC3_REVISION_194A) { in dwc3_gadget_wakeup()
1441 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_wakeup()
1443 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_wakeup()
1450 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_wakeup()
1458 dev_err(dwc->dev, "failed to send remote wakeup\n"); in dwc3_gadget_wakeup()
1463 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_wakeup()
1471 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_set_selfpowered() local
1474 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_set_selfpowered()
1476 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_set_selfpowered()
1481 static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend) in dwc3_gadget_run_stop() argument
1486 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_run_stop()
1488 if (dwc->revision <= DWC3_REVISION_187A) { in dwc3_gadget_run_stop()
1493 if (dwc->revision >= DWC3_REVISION_194A) in dwc3_gadget_run_stop()
1497 if (dwc->has_hibernation) in dwc3_gadget_run_stop()
1500 dwc->pullups_connected = true; in dwc3_gadget_run_stop()
1504 if (dwc->has_hibernation && !suspend) in dwc3_gadget_run_stop()
1507 dwc->pullups_connected = false; in dwc3_gadget_run_stop()
1510 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_run_stop()
1513 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_run_stop()
1528 dwc->gadget_driver in dwc3_gadget_run_stop()
1529 ? dwc->gadget_driver->function : "no-function", in dwc3_gadget_run_stop()
1537 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_pullup() local
1543 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_pullup()
1544 ret = dwc3_gadget_run_stop(dwc, is_on, false); in dwc3_gadget_pullup()
1545 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_pullup()
1550 static void dwc3_gadget_enable_irq(struct dwc3 *dwc) in dwc3_gadget_enable_irq() argument
1565 dwc3_writel(dwc->regs, DWC3_DEVTEN, reg); in dwc3_gadget_enable_irq()
1568 static void dwc3_gadget_disable_irq(struct dwc3 *dwc) in dwc3_gadget_disable_irq() argument
1571 dwc3_writel(dwc->regs, DWC3_DEVTEN, 0x00); in dwc3_gadget_disable_irq()
1580 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_start() local
1587 irq = platform_get_irq(to_platform_device(dwc->dev), 0); in dwc3_gadget_start()
1589 IRQF_SHARED, "dwc3", dwc); in dwc3_gadget_start()
1591 dev_err(dwc->dev, "failed to request irq #%d --> %d\n", in dwc3_gadget_start()
1596 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_start()
1598 if (dwc->gadget_driver) { in dwc3_gadget_start()
1599 dev_err(dwc->dev, "%s is already bound to %s\n", in dwc3_gadget_start()
1600 dwc->gadget.name, in dwc3_gadget_start()
1601 dwc->gadget_driver->driver.name); in dwc3_gadget_start()
1606 dwc->gadget_driver = driver; in dwc3_gadget_start()
1608 reg = dwc3_readl(dwc->regs, DWC3_DCFG); in dwc3_gadget_start()
1624 if (dwc->revision < DWC3_REVISION_220A) { in dwc3_gadget_start()
1627 switch (dwc->maximum_speed) { in dwc3_gadget_start()
1643 dwc3_writel(dwc->regs, DWC3_DCFG, reg); in dwc3_gadget_start()
1648 dep = dwc->eps[0]; in dwc3_gadget_start()
1652 dev_err(dwc->dev, "failed to enable %s\n", dep->name); in dwc3_gadget_start()
1656 dep = dwc->eps[1]; in dwc3_gadget_start()
1660 dev_err(dwc->dev, "failed to enable %s\n", dep->name); in dwc3_gadget_start()
1665 dwc->ep0state = EP0_SETUP_PHASE; in dwc3_gadget_start()
1666 dwc3_ep0_out_start(dwc); in dwc3_gadget_start()
1668 dwc3_gadget_enable_irq(dwc); in dwc3_gadget_start()
1670 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_start()
1675 __dwc3_gadget_ep_disable(dwc->eps[0]); in dwc3_gadget_start()
1678 dwc->gadget_driver = NULL; in dwc3_gadget_start()
1681 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_start()
1683 free_irq(irq, dwc); in dwc3_gadget_start()
1691 struct dwc3 *dwc = gadget_to_dwc(g); in dwc3_gadget_stop() local
1695 spin_lock_irqsave(&dwc->lock, flags); in dwc3_gadget_stop()
1697 dwc3_gadget_disable_irq(dwc); in dwc3_gadget_stop()
1698 __dwc3_gadget_ep_disable(dwc->eps[0]); in dwc3_gadget_stop()
1699 __dwc3_gadget_ep_disable(dwc->eps[1]); in dwc3_gadget_stop()
1701 dwc->gadget_driver = NULL; in dwc3_gadget_stop()
1703 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_gadget_stop()
1705 irq = platform_get_irq(to_platform_device(dwc->dev), 0); in dwc3_gadget_stop()
1706 free_irq(irq, dwc); in dwc3_gadget_stop()
1722 static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, in dwc3_gadget_init_hw_endpoints() argument
1735 dep->dwc = dwc; in dwc3_gadget_init_hw_endpoints()
1738 dwc->eps[epnum] = dep; in dwc3_gadget_init_hw_endpoints()
1752 dwc->gadget.ep0 = &dep->endpoint; in dwc3_gadget_init_hw_endpoints()
1760 &dwc->gadget.ep_list); in dwc3_gadget_init_hw_endpoints()
1785 static int dwc3_gadget_init_endpoints(struct dwc3 *dwc) in dwc3_gadget_init_endpoints() argument
1789 INIT_LIST_HEAD(&dwc->gadget.ep_list); in dwc3_gadget_init_endpoints()
1791 ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_out_eps, 0); in dwc3_gadget_init_endpoints()
1798 ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_in_eps, 1); in dwc3_gadget_init_endpoints()
1808 static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) in dwc3_gadget_free_endpoints() argument
1814 dep = dwc->eps[epnum]; in dwc3_gadget_free_endpoints()
1837 static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, in __dwc3_cleanup_done_trbs() argument
1856 dev_err(dwc->dev, "%s's TRB (%p) still owned by HW\n", in __dwc3_cleanup_done_trbs()
1864 dev_dbg(dwc->dev, "incomplete IN transfer %s\n", in __dwc3_cleanup_done_trbs()
1883 dev_err(dwc->dev, "incomplete IN transfer %s\n", in __dwc3_cleanup_done_trbs()
1915 static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, in dwc3_cleanup_done_reqs() argument
1939 ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb, in dwc3_cleanup_done_reqs()
1962 dwc3_stop_active_transfer(dwc, dep->number, true); in dwc3_cleanup_done_reqs()
1971 static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc, in dwc3_endpoint_transfer_complete() argument
1983 clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status); in dwc3_endpoint_transfer_complete()
1992 if (dwc->revision < DWC3_REVISION_183A) { in dwc3_endpoint_transfer_complete()
1997 dep = dwc->eps[i]; in dwc3_endpoint_transfer_complete()
2006 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_endpoint_transfer_complete()
2007 reg |= dwc->u1u2; in dwc3_endpoint_transfer_complete()
2008 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_endpoint_transfer_complete()
2010 dwc->u1u2 = 0; in dwc3_endpoint_transfer_complete()
2022 static void dwc3_endpoint_interrupt(struct dwc3 *dwc, in dwc3_endpoint_interrupt() argument
2028 dep = dwc->eps[epnum]; in dwc3_endpoint_interrupt()
2034 dwc3_ep0_interrupt(dwc, event); in dwc3_endpoint_interrupt()
2043 dev_dbg(dwc->dev, "%s is an Isochronous endpoint\n", in dwc3_endpoint_interrupt()
2048 dwc3_endpoint_transfer_complete(dwc, dep, event); in dwc3_endpoint_interrupt()
2051 dwc3_endpoint_transfer_complete(dwc, dep, event); in dwc3_endpoint_interrupt()
2055 dwc3_gadget_start_isoc(dwc, dep, event); in dwc3_endpoint_interrupt()
2070 dev_dbg(dwc->dev, "%s: failed to kick transfers\n", in dwc3_endpoint_interrupt()
2077 dev_err(dwc->dev, "Stream event for non-Bulk %s\n", in dwc3_endpoint_interrupt()
2092 dev_dbg(dwc->dev, "Couldn't find suitable stream\n"); in dwc3_endpoint_interrupt()
2096 dev_dbg(dwc->dev, "%s FIFO Overrun\n", dep->name); in dwc3_endpoint_interrupt()
2104 static void dwc3_disconnect_gadget(struct dwc3 *dwc) in dwc3_disconnect_gadget() argument
2106 if (dwc->gadget_driver && dwc->gadget_driver->disconnect) { in dwc3_disconnect_gadget()
2107 spin_unlock(&dwc->lock); in dwc3_disconnect_gadget()
2108 dwc->gadget_driver->disconnect(&dwc->gadget); in dwc3_disconnect_gadget()
2109 spin_lock(&dwc->lock); in dwc3_disconnect_gadget()
2113 static void dwc3_suspend_gadget(struct dwc3 *dwc) in dwc3_suspend_gadget() argument
2115 if (dwc->gadget_driver && dwc->gadget_driver->suspend) { in dwc3_suspend_gadget()
2116 spin_unlock(&dwc->lock); in dwc3_suspend_gadget()
2117 dwc->gadget_driver->suspend(&dwc->gadget); in dwc3_suspend_gadget()
2118 spin_lock(&dwc->lock); in dwc3_suspend_gadget()
2122 static void dwc3_resume_gadget(struct dwc3 *dwc) in dwc3_resume_gadget() argument
2124 if (dwc->gadget_driver && dwc->gadget_driver->resume) { in dwc3_resume_gadget()
2125 spin_unlock(&dwc->lock); in dwc3_resume_gadget()
2126 dwc->gadget_driver->resume(&dwc->gadget); in dwc3_resume_gadget()
2127 spin_lock(&dwc->lock); in dwc3_resume_gadget()
2131 static void dwc3_reset_gadget(struct dwc3 *dwc) in dwc3_reset_gadget() argument
2133 if (!dwc->gadget_driver) in dwc3_reset_gadget()
2136 if (dwc->gadget.speed != USB_SPEED_UNKNOWN) { in dwc3_reset_gadget()
2137 spin_unlock(&dwc->lock); in dwc3_reset_gadget()
2138 usb_gadget_udc_reset(&dwc->gadget, dwc->gadget_driver); in dwc3_reset_gadget()
2139 spin_lock(&dwc->lock); in dwc3_reset_gadget()
2143 static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum, bool force) in dwc3_stop_active_transfer() argument
2150 dep = dwc->eps[epnum]; in dwc3_stop_active_transfer()
2179 ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, ¶ms); in dwc3_stop_active_transfer()
2186 static void dwc3_stop_active_transfers(struct dwc3 *dwc) in dwc3_stop_active_transfers() argument
2193 dep = dwc->eps[epnum]; in dwc3_stop_active_transfers()
2200 dwc3_remove_requests(dwc, dep); in dwc3_stop_active_transfers()
2204 static void dwc3_clear_stall_all_ep(struct dwc3 *dwc) in dwc3_clear_stall_all_ep() argument
2213 dep = dwc->eps[epnum]; in dwc3_clear_stall_all_ep()
2223 ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, in dwc3_clear_stall_all_ep()
2229 static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) in dwc3_gadget_disconnect_interrupt() argument
2233 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_disconnect_interrupt()
2235 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_disconnect_interrupt()
2238 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_disconnect_interrupt()
2240 dwc3_disconnect_gadget(dwc); in dwc3_gadget_disconnect_interrupt()
2242 dwc->gadget.speed = USB_SPEED_UNKNOWN; in dwc3_gadget_disconnect_interrupt()
2243 dwc->setup_packet_pending = false; in dwc3_gadget_disconnect_interrupt()
2244 usb_gadget_set_state(&dwc->gadget, USB_STATE_NOTATTACHED); in dwc3_gadget_disconnect_interrupt()
2247 static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) in dwc3_gadget_reset_interrupt() argument
2277 if (dwc->revision < DWC3_REVISION_188A) { in dwc3_gadget_reset_interrupt()
2278 if (dwc->setup_packet_pending) in dwc3_gadget_reset_interrupt()
2279 dwc3_gadget_disconnect_interrupt(dwc); in dwc3_gadget_reset_interrupt()
2282 dwc3_reset_gadget(dwc); in dwc3_gadget_reset_interrupt()
2284 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_reset_interrupt()
2286 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_reset_interrupt()
2287 dwc->test_mode = false; in dwc3_gadget_reset_interrupt()
2289 dwc3_stop_active_transfers(dwc); in dwc3_gadget_reset_interrupt()
2290 dwc3_clear_stall_all_ep(dwc); in dwc3_gadget_reset_interrupt()
2293 reg = dwc3_readl(dwc->regs, DWC3_DCFG); in dwc3_gadget_reset_interrupt()
2295 dwc3_writel(dwc->regs, DWC3_DCFG, reg); in dwc3_gadget_reset_interrupt()
2298 static void dwc3_update_ram_clk_sel(struct dwc3 *dwc, u32 speed) in dwc3_update_ram_clk_sel() argument
2318 reg = dwc3_readl(dwc->regs, DWC3_GCTL); in dwc3_update_ram_clk_sel()
2320 dwc3_writel(dwc->regs, DWC3_GCTL, reg); in dwc3_update_ram_clk_sel()
2323 static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) in dwc3_gadget_conndone_interrupt() argument
2330 reg = dwc3_readl(dwc->regs, DWC3_DSTS); in dwc3_gadget_conndone_interrupt()
2332 dwc->speed = speed; in dwc3_gadget_conndone_interrupt()
2334 dwc3_update_ram_clk_sel(dwc, speed); in dwc3_gadget_conndone_interrupt()
2351 if (dwc->revision < DWC3_REVISION_190A) in dwc3_gadget_conndone_interrupt()
2352 dwc3_gadget_reset_interrupt(dwc); in dwc3_gadget_conndone_interrupt()
2355 dwc->gadget.ep0->maxpacket = 512; in dwc3_gadget_conndone_interrupt()
2356 dwc->gadget.speed = USB_SPEED_SUPER; in dwc3_gadget_conndone_interrupt()
2360 dwc->gadget.ep0->maxpacket = 64; in dwc3_gadget_conndone_interrupt()
2361 dwc->gadget.speed = USB_SPEED_HIGH; in dwc3_gadget_conndone_interrupt()
2366 dwc->gadget.ep0->maxpacket = 64; in dwc3_gadget_conndone_interrupt()
2367 dwc->gadget.speed = USB_SPEED_FULL; in dwc3_gadget_conndone_interrupt()
2371 dwc->gadget.ep0->maxpacket = 8; in dwc3_gadget_conndone_interrupt()
2372 dwc->gadget.speed = USB_SPEED_LOW; in dwc3_gadget_conndone_interrupt()
2378 if ((dwc->revision > DWC3_REVISION_194A) in dwc3_gadget_conndone_interrupt()
2380 reg = dwc3_readl(dwc->regs, DWC3_DCFG); in dwc3_gadget_conndone_interrupt()
2382 dwc3_writel(dwc->regs, DWC3_DCFG, reg); in dwc3_gadget_conndone_interrupt()
2384 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_conndone_interrupt()
2387 reg |= DWC3_DCTL_HIRD_THRES(dwc->hird_threshold); in dwc3_gadget_conndone_interrupt()
2395 WARN_ONCE(dwc->revision < DWC3_REVISION_240A in dwc3_gadget_conndone_interrupt()
2396 && dwc->has_lpm_erratum, in dwc3_gadget_conndone_interrupt()
2399 if (dwc->has_lpm_erratum && dwc->revision >= DWC3_REVISION_240A) in dwc3_gadget_conndone_interrupt()
2400 reg |= DWC3_DCTL_LPM_ERRATA(dwc->lpm_nyet_threshold); in dwc3_gadget_conndone_interrupt()
2402 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_conndone_interrupt()
2404 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_conndone_interrupt()
2406 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_conndone_interrupt()
2409 dep = dwc->eps[0]; in dwc3_gadget_conndone_interrupt()
2413 dev_err(dwc->dev, "failed to enable %s\n", dep->name); in dwc3_gadget_conndone_interrupt()
2417 dep = dwc->eps[1]; in dwc3_gadget_conndone_interrupt()
2421 dev_err(dwc->dev, "failed to enable %s\n", dep->name); in dwc3_gadget_conndone_interrupt()
2434 static void dwc3_gadget_wakeup_interrupt(struct dwc3 *dwc) in dwc3_gadget_wakeup_interrupt() argument
2441 dwc->gadget_driver->resume(&dwc->gadget); in dwc3_gadget_wakeup_interrupt()
2444 static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc, in dwc3_gadget_linksts_change_interrupt() argument
2467 pwropt = DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1); in dwc3_gadget_linksts_change_interrupt()
2468 if ((dwc->revision < DWC3_REVISION_250A) && in dwc3_gadget_linksts_change_interrupt()
2470 if ((dwc->link_state == DWC3_LINK_STATE_U3) && in dwc3_gadget_linksts_change_interrupt()
2496 if (dwc->revision < DWC3_REVISION_183A) { in dwc3_gadget_linksts_change_interrupt()
2501 switch (dwc->link_state) { in dwc3_gadget_linksts_change_interrupt()
2504 reg = dwc3_readl(dwc->regs, DWC3_DCTL); in dwc3_gadget_linksts_change_interrupt()
2510 if (!dwc->u1u2) in dwc3_gadget_linksts_change_interrupt()
2511 dwc->u1u2 = reg & u1u2; in dwc3_gadget_linksts_change_interrupt()
2515 dwc3_writel(dwc->regs, DWC3_DCTL, reg); in dwc3_gadget_linksts_change_interrupt()
2526 if (dwc->speed == USB_SPEED_SUPER) in dwc3_gadget_linksts_change_interrupt()
2527 dwc3_suspend_gadget(dwc); in dwc3_gadget_linksts_change_interrupt()
2531 dwc3_suspend_gadget(dwc); in dwc3_gadget_linksts_change_interrupt()
2534 dwc3_resume_gadget(dwc); in dwc3_gadget_linksts_change_interrupt()
2541 dwc->link_state = next; in dwc3_gadget_linksts_change_interrupt()
2544 static void dwc3_gadget_hibernation_interrupt(struct dwc3 *dwc, in dwc3_gadget_hibernation_interrupt() argument
2562 if (is_ss ^ (dwc->speed == USB_SPEED_SUPER)) in dwc3_gadget_hibernation_interrupt()
2568 static void dwc3_gadget_interrupt(struct dwc3 *dwc, in dwc3_gadget_interrupt() argument
2573 dwc3_gadget_disconnect_interrupt(dwc); in dwc3_gadget_interrupt()
2576 dwc3_gadget_reset_interrupt(dwc); in dwc3_gadget_interrupt()
2579 dwc3_gadget_conndone_interrupt(dwc); in dwc3_gadget_interrupt()
2582 dwc3_gadget_wakeup_interrupt(dwc); in dwc3_gadget_interrupt()
2585 if (dev_WARN_ONCE(dwc->dev, !dwc->has_hibernation, in dwc3_gadget_interrupt()
2589 dwc3_gadget_hibernation_interrupt(dwc, event->event_info); in dwc3_gadget_interrupt()
2592 dwc3_gadget_linksts_change_interrupt(dwc, event->event_info); in dwc3_gadget_interrupt()
2610 dev_WARN(dwc->dev, "UNKNOWN IRQ %d\n", event->type); in dwc3_gadget_interrupt()
2614 static void dwc3_process_event_entry(struct dwc3 *dwc, in dwc3_process_event_entry() argument
2622 return dwc3_endpoint_interrupt(dwc, &event->depevt); in dwc3_process_event_entry()
2627 dwc3_gadget_interrupt(dwc, &event->devt); in dwc3_process_event_entry()
2631 dev_err(dwc->dev, "UNKNOWN IRQ type %d\n", event->raw); in dwc3_process_event_entry()
2635 static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) in dwc3_process_event_buf() argument
2642 evt = dwc->ev_buffs[buf]; in dwc3_process_event_buf()
2653 dwc3_process_event_entry(dwc, &event); in dwc3_process_event_buf()
2667 dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(buf), 4); in dwc3_process_event_buf()
2675 reg = dwc3_readl(dwc->regs, DWC3_GEVNTSIZ(buf)); in dwc3_process_event_buf()
2677 dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(buf), reg); in dwc3_process_event_buf()
2684 struct dwc3 *dwc = _dwc; in dwc3_thread_interrupt() local
2689 spin_lock_irqsave(&dwc->lock, flags); in dwc3_thread_interrupt()
2691 for (i = 0; i < dwc->num_event_buffers; i++) in dwc3_thread_interrupt()
2692 ret |= dwc3_process_event_buf(dwc, i); in dwc3_thread_interrupt()
2694 spin_unlock_irqrestore(&dwc->lock, flags); in dwc3_thread_interrupt()
2699 static irqreturn_t dwc3_check_event_buf(struct dwc3 *dwc, u32 buf) in dwc3_check_event_buf() argument
2705 evt = dwc->ev_buffs[buf]; in dwc3_check_event_buf()
2707 count = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(buf)); in dwc3_check_event_buf()
2716 reg = dwc3_readl(dwc->regs, DWC3_GEVNTSIZ(buf)); in dwc3_check_event_buf()
2718 dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(buf), reg); in dwc3_check_event_buf()
2725 struct dwc3 *dwc = _dwc; in dwc3_interrupt() local
2729 for (i = 0; i < dwc->num_event_buffers; i++) { in dwc3_interrupt()
2732 status = dwc3_check_event_buf(dwc, i); in dwc3_interrupt()
2746 int dwc3_gadget_init(struct dwc3 *dwc) in dwc3_gadget_init() argument
2750 dwc->ctrl_req = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ctrl_req), in dwc3_gadget_init()
2751 &dwc->ctrl_req_addr, GFP_KERNEL); in dwc3_gadget_init()
2752 if (!dwc->ctrl_req) { in dwc3_gadget_init()
2753 dev_err(dwc->dev, "failed to allocate ctrl request\n"); in dwc3_gadget_init()
2758 dwc->ep0_trb = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, in dwc3_gadget_init()
2759 &dwc->ep0_trb_addr, GFP_KERNEL); in dwc3_gadget_init()
2760 if (!dwc->ep0_trb) { in dwc3_gadget_init()
2761 dev_err(dwc->dev, "failed to allocate ep0 trb\n"); in dwc3_gadget_init()
2766 dwc->setup_buf = kzalloc(DWC3_EP0_BOUNCE_SIZE, GFP_KERNEL); in dwc3_gadget_init()
2767 if (!dwc->setup_buf) { in dwc3_gadget_init()
2772 dwc->ep0_bounce = dma_alloc_coherent(dwc->dev, in dwc3_gadget_init()
2773 DWC3_EP0_BOUNCE_SIZE, &dwc->ep0_bounce_addr, in dwc3_gadget_init()
2775 if (!dwc->ep0_bounce) { in dwc3_gadget_init()
2776 dev_err(dwc->dev, "failed to allocate ep0 bounce buffer\n"); in dwc3_gadget_init()
2781 dwc->gadget.ops = &dwc3_gadget_ops; in dwc3_gadget_init()
2782 dwc->gadget.speed = USB_SPEED_UNKNOWN; in dwc3_gadget_init()
2783 dwc->gadget.sg_supported = true; in dwc3_gadget_init()
2784 dwc->gadget.name = "dwc3-gadget"; in dwc3_gadget_init()
2802 if (dwc->revision < DWC3_REVISION_220A) in dwc3_gadget_init()
2805 dwc->revision); in dwc3_gadget_init()
2807 dwc->gadget.max_speed = dwc->maximum_speed; in dwc3_gadget_init()
2813 dwc->gadget.quirk_ep_out_aligned_size = true; in dwc3_gadget_init()
2820 ret = dwc3_gadget_init_endpoints(dwc); in dwc3_gadget_init()
2824 ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); in dwc3_gadget_init()
2826 dev_err(dwc->dev, "failed to register udc\n"); in dwc3_gadget_init()
2833 dwc3_gadget_free_endpoints(dwc); in dwc3_gadget_init()
2834 dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, in dwc3_gadget_init()
2835 dwc->ep0_bounce, dwc->ep0_bounce_addr); in dwc3_gadget_init()
2838 kfree(dwc->setup_buf); in dwc3_gadget_init()
2841 dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb), in dwc3_gadget_init()
2842 dwc->ep0_trb, dwc->ep0_trb_addr); in dwc3_gadget_init()
2845 dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), in dwc3_gadget_init()
2846 dwc->ctrl_req, dwc->ctrl_req_addr); in dwc3_gadget_init()
2854 void dwc3_gadget_exit(struct dwc3 *dwc) in dwc3_gadget_exit() argument
2856 usb_del_gadget_udc(&dwc->gadget); in dwc3_gadget_exit()
2858 dwc3_gadget_free_endpoints(dwc); in dwc3_gadget_exit()
2860 dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, in dwc3_gadget_exit()
2861 dwc->ep0_bounce, dwc->ep0_bounce_addr); in dwc3_gadget_exit()
2863 kfree(dwc->setup_buf); in dwc3_gadget_exit()
2865 dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb), in dwc3_gadget_exit()
2866 dwc->ep0_trb, dwc->ep0_trb_addr); in dwc3_gadget_exit()
2868 dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), in dwc3_gadget_exit()
2869 dwc->ctrl_req, dwc->ctrl_req_addr); in dwc3_gadget_exit()
2872 int dwc3_gadget_suspend(struct dwc3 *dwc) in dwc3_gadget_suspend() argument
2874 if (dwc->pullups_connected) { in dwc3_gadget_suspend()
2875 dwc3_gadget_disable_irq(dwc); in dwc3_gadget_suspend()
2876 dwc3_gadget_run_stop(dwc, true, true); in dwc3_gadget_suspend()
2879 __dwc3_gadget_ep_disable(dwc->eps[0]); in dwc3_gadget_suspend()
2880 __dwc3_gadget_ep_disable(dwc->eps[1]); in dwc3_gadget_suspend()
2882 dwc->dcfg = dwc3_readl(dwc->regs, DWC3_DCFG); in dwc3_gadget_suspend()
2887 int dwc3_gadget_resume(struct dwc3 *dwc) in dwc3_gadget_resume() argument
2895 dep = dwc->eps[0]; in dwc3_gadget_resume()
2901 dep = dwc->eps[1]; in dwc3_gadget_resume()
2908 dwc->ep0state = EP0_SETUP_PHASE; in dwc3_gadget_resume()
2909 dwc3_ep0_out_start(dwc); in dwc3_gadget_resume()
2911 dwc3_writel(dwc->regs, DWC3_DCFG, dwc->dcfg); in dwc3_gadget_resume()
2913 if (dwc->pullups_connected) { in dwc3_gadget_resume()
2914 dwc3_gadget_enable_irq(dwc); in dwc3_gadget_resume()
2915 dwc3_gadget_run_stop(dwc, true, false); in dwc3_gadget_resume()
2921 __dwc3_gadget_ep_disable(dwc->eps[0]); in dwc3_gadget_resume()