32 void ast_vhub_dev_irq(struct ast_vhub_dev *d)  in ast_vhub_dev_irq()  argument
34 	u32 istat = readl(d->regs + AST_VHUB_DEV_ISR);  in ast_vhub_dev_irq()
36 	writel(istat, d->regs + AST_VHUB_DEV_ISR);  in ast_vhub_dev_irq()
39 		ast_vhub_ep0_handle_ack(&d->ep0, true);  in ast_vhub_dev_irq()
41 		ast_vhub_ep0_handle_ack(&d->ep0, false);  in ast_vhub_dev_irq()
43 		ast_vhub_ep0_handle_setup(&d->ep0);  in ast_vhub_dev_irq()
46 static void ast_vhub_dev_enable(struct ast_vhub_dev *d)  in ast_vhub_dev_enable()  argument
50 	if (d->enabled)  in ast_vhub_dev_enable()
54 	ast_vhub_reset_ep0(d);  in ast_vhub_dev_enable()
61 	if (d->gadget.speed == USB_SPEED_HIGH)  in ast_vhub_dev_enable()
63 	writel(reg, d->regs + AST_VHUB_DEV_EN_CTRL);  in ast_vhub_dev_enable()
66 	hmsk = VHUB_IRQ_DEVICE1 << d->index;  in ast_vhub_dev_enable()
67 	reg = readl(d->vhub->regs + AST_VHUB_IER);  in ast_vhub_dev_enable()
69 	writel(reg, d->vhub->regs + AST_VHUB_IER);  in ast_vhub_dev_enable()
72 	writel(d->ep0.buf_dma, d->regs + AST_VHUB_DEV_EP0_DATA);  in ast_vhub_dev_enable()
75 	for (i = 0; i < d->max_epns; i++) {  in ast_vhub_dev_enable()
76 		struct ast_vhub_ep *ep = d->epns[i];  in ast_vhub_dev_enable()
86 	d->wakeup_en = false;  in ast_vhub_dev_enable()
87 	d->enabled = true;  in ast_vhub_dev_enable()
90 static void ast_vhub_dev_disable(struct ast_vhub_dev *d)  in ast_vhub_dev_disable()  argument
94 	if (!d->enabled)  in ast_vhub_dev_disable()
98 	hmsk = VHUB_IRQ_DEVICE1 << d->index;  in ast_vhub_dev_disable()
99 	reg = readl(d->vhub->regs + AST_VHUB_IER);  in ast_vhub_dev_disable()
101 	writel(reg, d->vhub->regs + AST_VHUB_IER);  in ast_vhub_dev_disable()
104 	writel(0, d->regs + AST_VHUB_DEV_EN_CTRL);  in ast_vhub_dev_disable()
105 	d->gadget.speed = USB_SPEED_UNKNOWN;  in ast_vhub_dev_disable()
106 	d->enabled = false;  in ast_vhub_dev_disable()
109 static int ast_vhub_dev_feature(struct ast_vhub_dev *d,  in ast_vhub_dev_feature()  argument
113 	DDBG(d, "%s_FEATURE(dev val=%02x)\n",  in ast_vhub_dev_feature()
119 	d->wakeup_en = is_set;  in ast_vhub_dev_feature()
124 static int ast_vhub_ep_feature(struct ast_vhub_dev *d,  in ast_vhub_ep_feature()  argument
131 	DDBG(d, "%s_FEATURE(ep%d val=%02x)\n",  in ast_vhub_ep_feature()
135 	if (ep_num >= d->max_epns || !d->epns[ep_num - 1])  in ast_vhub_ep_feature()
140 	ep = d->epns[ep_num - 1];  in ast_vhub_ep_feature()
148 	DDBG(d, "%s stall on EP %d\n",  in ast_vhub_ep_feature()
156 static int ast_vhub_dev_status(struct ast_vhub_dev *d,  in ast_vhub_dev_status()  argument
161 	DDBG(d, "GET_STATUS(dev)\n");  in ast_vhub_dev_status()
163 	st0 = d->gadget.is_selfpowered << USB_DEVICE_SELF_POWERED;  in ast_vhub_dev_status()
164 	if (d->wakeup_en)  in ast_vhub_dev_status()
167 	return ast_vhub_simple_reply(&d->ep0, st0, 0);  in ast_vhub_dev_status()
170 static int ast_vhub_ep_status(struct ast_vhub_dev *d,  in ast_vhub_ep_status()  argument
177 	DDBG(d, "GET_STATUS(ep%d)\n", ep_num);  in ast_vhub_ep_status()
179 	if (ep_num >= d->max_epns)  in ast_vhub_ep_status()
182 		ep = d->epns[ep_num - 1];  in ast_vhub_ep_status()
192 	return ast_vhub_simple_reply(&d->ep0, st0, 0);  in ast_vhub_ep_status()
195 static void ast_vhub_dev_set_address(struct ast_vhub_dev *d, u8 addr)  in ast_vhub_dev_set_address()  argument
199 	DDBG(d, "SET_ADDRESS: Got address %x\n", addr);  in ast_vhub_dev_set_address()
201 	reg = readl(d->regs + AST_VHUB_DEV_EN_CTRL);  in ast_vhub_dev_set_address()
204 	writel(reg, d->regs + AST_VHUB_DEV_EN_CTRL);  in ast_vhub_dev_set_address()
210 	struct ast_vhub_dev *d = ep->dev;  in ast_vhub_std_dev_request()  local
214 	if (!d->driver || !d->enabled) {  in ast_vhub_std_dev_request()
216 		      "Device is wrong state driver=%p enabled=%d\n",  in ast_vhub_std_dev_request()
217 		      d->driver, d->enabled);  in ast_vhub_std_dev_request()
228 	if (d->gadget.speed == USB_SPEED_UNKNOWN) {  in ast_vhub_std_dev_request()
229 		d->gadget.speed = ep->vhub->speed;  in ast_vhub_std_dev_request()
230 		if (d->gadget.speed > d->driver->max_speed)  in ast_vhub_std_dev_request()
231 			d->gadget.speed = d->driver->max_speed;  in ast_vhub_std_dev_request()
232 		DDBG(d, "fist packet, captured speed %d\n",  in ast_vhub_std_dev_request()
233 		     d->gadget.speed);  in ast_vhub_std_dev_request()
242 		ast_vhub_dev_set_address(d, wValue);  in ast_vhub_std_dev_request()
247 		return ast_vhub_dev_status(d, wIndex, wValue);  in ast_vhub_std_dev_request()
251 		return ast_vhub_ep_status(d, wIndex, wValue);  in ast_vhub_std_dev_request()
255 		return ast_vhub_dev_feature(d, wIndex, wValue, true);  in ast_vhub_std_dev_request()
257 		return ast_vhub_dev_feature(d, wIndex, wValue, false);  in ast_vhub_std_dev_request()
259 		return ast_vhub_ep_feature(d, wIndex, wValue, true);  in ast_vhub_std_dev_request()
261 		return ast_vhub_ep_feature(d, wIndex, wValue, false);  in ast_vhub_std_dev_request()
268 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_wakeup()  local
272 	spin_lock_irqsave(&d->vhub->lock, flags);  in ast_vhub_udc_wakeup()
273 	if (!d->wakeup_en)  in ast_vhub_udc_wakeup()
276 	DDBG(d, "Device initiated wakeup\n");  in ast_vhub_udc_wakeup()
279 	ast_vhub_hub_wake_all(d->vhub);  in ast_vhub_udc_wakeup()
282 	spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_udc_wakeup()
288 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_get_frame()  local
290 	return (readl(d->vhub->regs + AST_VHUB_USBSTS) >> 16) & 0x7ff;  in ast_vhub_udc_get_frame()
293 static void ast_vhub_dev_nuke(struct ast_vhub_dev *d)  in ast_vhub_dev_nuke()  argument
297 	for (i = 0; i < d->max_epns; i++) {  in ast_vhub_dev_nuke()
298 		if (!d->epns[i])  in ast_vhub_dev_nuke()
300 		ast_vhub_nuke(d->epns[i], -ESHUTDOWN);  in ast_vhub_dev_nuke()
306 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_pullup()  local
309 	spin_lock_irqsave(&d->vhub->lock, flags);  in ast_vhub_udc_pullup()
311 	DDBG(d, "pullup(%d)\n", on);  in ast_vhub_udc_pullup()
314 	ast_vhub_device_connect(d->vhub, d->index, on);  in ast_vhub_udc_pullup()
320 	if (d->enabled) {  in ast_vhub_udc_pullup()
321 		ast_vhub_dev_nuke(d);  in ast_vhub_udc_pullup()
322 		ast_vhub_dev_disable(d);  in ast_vhub_udc_pullup()
325 	spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_udc_pullup()
333 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_start()  local
336 	spin_lock_irqsave(&d->vhub->lock, flags);  in ast_vhub_udc_start()
338 	DDBG(d, "start\n");  in ast_vhub_udc_start()
341 	d->driver = driver;  in ast_vhub_udc_start()
342 	d->gadget.is_selfpowered = 1;  in ast_vhub_udc_start()
344 	spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_udc_start()
353 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_match_ep()  local
358 	DDBG(d, "Match EP type %d\n", usb_endpoint_type(desc));  in ast_vhub_udc_match_ep()
368 			DDBG(d, " -> using existing EP%d\n",  in ast_vhub_udc_match_ep()
414 	for (i = 0; i < d->max_epns; i++)  in ast_vhub_udc_match_ep()
415 		if (d->epns[i] == NULL)  in ast_vhub_udc_match_ep()
417 	if (i >= d->max_epns)  in ast_vhub_udc_match_ep()
425 	ep = ast_vhub_alloc_epn(d, addr);  in ast_vhub_udc_match_ep()
428 	DDBG(d, "Allocated epn#%d for port EP%d\n",  in ast_vhub_udc_match_ep()
436 	struct ast_vhub_dev *d = to_ast_dev(gadget);  in ast_vhub_udc_stop()  local
439 	spin_lock_irqsave(&d->vhub->lock, flags);  in ast_vhub_udc_stop()
441 	DDBG(d, "stop\n");  in ast_vhub_udc_stop()
443 	d->driver = NULL;  in ast_vhub_udc_stop()
444 	d->gadget.speed = USB_SPEED_UNKNOWN;  in ast_vhub_udc_stop()
446 	ast_vhub_dev_nuke(d);  in ast_vhub_udc_stop()
448 	if (d->enabled)  in ast_vhub_udc_stop()
449 		ast_vhub_dev_disable(d);  in ast_vhub_udc_stop()
451 	spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_udc_stop()
465 void ast_vhub_dev_suspend(struct ast_vhub_dev *d)  in ast_vhub_dev_suspend()  argument
467 	if (d->driver && d->driver->suspend) {  in ast_vhub_dev_suspend()
468 		spin_unlock(&d->vhub->lock);  in ast_vhub_dev_suspend()
469 		d->driver->suspend(&d->gadget);  in ast_vhub_dev_suspend()
470 		spin_lock(&d->vhub->lock);  in ast_vhub_dev_suspend()
474 void ast_vhub_dev_resume(struct ast_vhub_dev *d)  in ast_vhub_dev_resume()  argument
476 	if (d->driver && d->driver->resume) {  in ast_vhub_dev_resume()
477 		spin_unlock(&d->vhub->lock);  in ast_vhub_dev_resume()
478 		d->driver->resume(&d->gadget);  in ast_vhub_dev_resume()
479 		spin_lock(&d->vhub->lock);  in ast_vhub_dev_resume()
483 void ast_vhub_dev_reset(struct ast_vhub_dev *d)  in ast_vhub_dev_reset()  argument
486 	if (!d->driver) {  in ast_vhub_dev_reset()
487 		ast_vhub_dev_disable(d);  in ast_vhub_dev_reset()
492 	if (!d->enabled) {  in ast_vhub_dev_reset()
493 		DDBG(d, "Reset of disabled device, enabling...\n");  in ast_vhub_dev_reset()
494 		ast_vhub_dev_enable(d);  in ast_vhub_dev_reset()
496 		DDBG(d, "Reset of enabled device, resetting...\n");  in ast_vhub_dev_reset()
497 		spin_unlock(&d->vhub->lock);  in ast_vhub_dev_reset()
498 		usb_gadget_udc_reset(&d->gadget, d->driver);  in ast_vhub_dev_reset()
499 		spin_lock(&d->vhub->lock);  in ast_vhub_dev_reset()
505 		ast_vhub_dev_disable(d);  in ast_vhub_dev_reset()
506 		ast_vhub_dev_enable(d);  in ast_vhub_dev_reset()
510 void ast_vhub_del_dev(struct ast_vhub_dev *d)  in ast_vhub_del_dev()  argument
514 	spin_lock_irqsave(&d->vhub->lock, flags);  in ast_vhub_del_dev()
515 	if (!d->registered) {  in ast_vhub_del_dev()
516 		spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_del_dev()
519 	d->registered = false;  in ast_vhub_del_dev()
520 	spin_unlock_irqrestore(&d->vhub->lock, flags);  in ast_vhub_del_dev()
522 	usb_del_gadget_udc(&d->gadget);  in ast_vhub_del_dev()
523 	device_unregister(d->port_dev);  in ast_vhub_del_dev()
524 	kfree(d->epns);  in ast_vhub_del_dev()
534 	struct ast_vhub_dev *d = &vhub->ports[idx].dev;  in ast_vhub_init_dev()  local
538 	d->vhub = vhub;  in ast_vhub_init_dev()
539 	d->index = idx;  in ast_vhub_init_dev()
540 	d->name = devm_kasprintf(parent, GFP_KERNEL, "port%d", idx+1);  in ast_vhub_init_dev()
541 	d->regs = vhub->regs + 0x100 + 0x10 * idx;  in ast_vhub_init_dev()
543 	ast_vhub_init_ep0(vhub, &d->ep0, d);  in ast_vhub_init_dev()
549 	d->max_epns = min_t(u32, vhub->max_epns, 30);  in ast_vhub_init_dev()
550 	d->epns = kcalloc(d->max_epns, sizeof(*d->epns), GFP_KERNEL);  in ast_vhub_init_dev()
551 	if (!d->epns)  in ast_vhub_init_dev()
559 	d->port_dev = kzalloc(sizeof(struct device), GFP_KERNEL);  in ast_vhub_init_dev()
560 	if (!d->port_dev) {  in ast_vhub_init_dev()
564 	device_initialize(d->port_dev);  in ast_vhub_init_dev()
565 	d->port_dev->release = ast_vhub_dev_release;  in ast_vhub_init_dev()
566 	d->port_dev->parent = parent;  in ast_vhub_init_dev()
567 	dev_set_name(d->port_dev, "%s:p%d", dev_name(parent), idx + 1);  in ast_vhub_init_dev()
568 	rc = device_add(d->port_dev);  in ast_vhub_init_dev()
573 	INIT_LIST_HEAD(&d->gadget.ep_list);  in ast_vhub_init_dev()
574 	d->gadget.ops = &ast_vhub_udc_ops;  in ast_vhub_init_dev()
575 	d->gadget.ep0 = &d->ep0.ep;  in ast_vhub_init_dev()
576 	d->gadget.name = KBUILD_MODNAME;  in ast_vhub_init_dev()
578 		d->gadget.max_speed = USB_SPEED_FULL;  in ast_vhub_init_dev()
580 		d->gadget.max_speed = USB_SPEED_HIGH;  in ast_vhub_init_dev()
581 	d->gadget.speed = USB_SPEED_UNKNOWN;  in ast_vhub_init_dev()
582 	d->gadget.dev.of_node = vhub->pdev->dev.of_node;  in ast_vhub_init_dev()
584 	rc = usb_add_gadget_udc(d->port_dev, &d->gadget);  in ast_vhub_init_dev()
587 	d->registered = true;  in ast_vhub_init_dev()
591 	device_del(d->port_dev);  in ast_vhub_init_dev()
593 	put_device(d->port_dev);  in ast_vhub_init_dev()
595 	kfree(d->epns);  in ast_vhub_init_dev()