1 // SPDX-License-Identifier: GPL-2.0
3  * mtu3_debugfs.c - debugfs interface
82 	struct mtu3 *mtu = sf->private;  in mtu3_link_state_show()
83 	void __iomem *mbase = mtu->mac_base;  in mtu3_link_state_show()
94 	struct mtu3 *mtu = sf->private;  in mtu3_ep_used_show()
100 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_ep_used_show()
102 	for (i = 0; i < mtu->num_eps; i++) {  in mtu3_ep_used_show()
103 		mep = mtu->in_eps + i;  in mtu3_ep_used_show()
104 		if (mep->flags & MTU3_EP_ENABLED) {  in mtu3_ep_used_show()
105 			seq_printf(sf, "%s - type: %s\n", mep->name, usb_ep_type_string(mep->type));  in mtu3_ep_used_show()
109 		mep = mtu->out_eps + i;  in mtu3_ep_used_show()
110 		if (mep->flags & MTU3_EP_ENABLED) {  in mtu3_ep_used_show()
111 			seq_printf(sf, "%s - type: %s\n", mep->name, usb_ep_type_string(mep->type));  in mtu3_ep_used_show()
117 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_ep_used_show()
132 	mregs = devm_kzalloc(mtu->dev, sizeof(*mregs), GFP_KERNEL);  in mtu3_debugfs_regset()
136 	sprintf(mregs->name, "%s", name);  in mtu3_debugfs_regset()
137 	regset = &mregs->regset;  in mtu3_debugfs_regset()
138 	regset->regs = regs;  in mtu3_debugfs_regset()
139 	regset->nregs = nregs;  in mtu3_debugfs_regset()
140 	regset->base = base;  in mtu3_debugfs_regset()
142 	debugfs_create_regset32(mregs->name, 0444, parent, regset);  in mtu3_debugfs_regset()
149 	int epnum = mep->epnum;  in mtu3_debugfs_ep_regset()
150 	int in = mep->is_in;  in mtu3_debugfs_ep_regset()
152 	regs = devm_kcalloc(mtu->dev, 7, sizeof(*regs), GFP_KERNEL);  in mtu3_debugfs_ep_regset()
171 	mtu3_debugfs_regset(mtu, mtu->mac_base, regs, 7, "ep-regs", parent);  in mtu3_debugfs_ep_regset()
176 	struct mtu3_ep *mep = sf->private;  in mtu3_ep_info_show()
177 	struct mtu3 *mtu = mep->mtu;  in mtu3_ep_info_show()
180 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_ep_info_show()
181 	seq_printf(sf, "ep - type:%s, maxp:%d, slot:%d, flags:%x\n",  in mtu3_ep_info_show()
182 		   usb_ep_type_string(mep->type), mep->maxp, mep->slot, mep->flags);  in mtu3_ep_info_show()
183 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_ep_info_show()
190 	struct mtu3_ep *mep = sf->private;  in mtu3_fifo_show()
191 	struct mtu3 *mtu = mep->mtu;  in mtu3_fifo_show()
194 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_fifo_show()
195 	seq_printf(sf, "fifo - seg_size:%d, addr:%d, size:%d\n",  in mtu3_fifo_show()
196 		   mep->fifo_seg_size, mep->fifo_addr, mep->fifo_size);  in mtu3_fifo_show()
197 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_fifo_show()
204 	struct mtu3_ep *mep = sf->private;  in mtu3_qmu_ring_show()
205 	struct mtu3 *mtu = mep->mtu;  in mtu3_qmu_ring_show()
209 	ring = &mep->gpd_ring;  in mtu3_qmu_ring_show()
210 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_qmu_ring_show()
212 		   "qmu-ring - dma:%pad, start:%p, end:%p, enq:%p, dep:%p\n",  in mtu3_qmu_ring_show()
213 		   &ring->dma, ring->start, ring->end,  in mtu3_qmu_ring_show()
214 		   ring->enqueue, ring->dequeue);  in mtu3_qmu_ring_show()
215 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_qmu_ring_show()
222 	struct mtu3_ep *mep = sf->private;  in mtu3_qmu_gpd_show()
223 	struct mtu3 *mtu = mep->mtu;  in mtu3_qmu_gpd_show()
230 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_qmu_gpd_show()
231 	ring = &mep->gpd_ring;  in mtu3_qmu_gpd_show()
232 	gpd = ring->start;  in mtu3_qmu_gpd_show()
233 	if (!gpd || !(mep->flags & MTU3_EP_ENABLED)) {  in mtu3_qmu_gpd_show()
239 		dma = ring->dma + i * sizeof(*gpd);  in mtu3_qmu_gpd_show()
240 		seq_printf(sf, "gpd.%03d -> %pad, %p: %08x %08x %08x %08x\n",  in mtu3_qmu_gpd_show()
241 			   i, &dma, gpd, gpd->dw0_info, gpd->next_gpd,  in mtu3_qmu_gpd_show()
242 			   gpd->buffer, gpd->dw3_info);  in mtu3_qmu_gpd_show()
246 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_qmu_gpd_show()
252 	{"ep-info", mtu3_ep_info_show, },
254 	{"qmu-ring", mtu3_qmu_ring_show, },
255 	{"qmu-gpd", mtu3_qmu_gpd_show, },
262 	return single_open(file, f_map->show, inode->i_private);  in mtu3_ep_open()
273 	dump_prb_reg("enable", U3D_SSUSB_PRB_CTRL0),
274 	dump_prb_reg("byte-sell", U3D_SSUSB_PRB_CTRL1),
275 	dump_prb_reg("byte-selh", U3D_SSUSB_PRB_CTRL2),
276 	dump_prb_reg("module-sel", U3D_SSUSB_PRB_CTRL3),
277 	dump_prb_reg("sw-out", U3D_SSUSB_PRB_CTRL4),
283 	struct mtu3 *mtu = sf->private;  in mtu3_probe_show()
284 	const struct debugfs_reg32 *regs = debugfs_get_aux(sf->file);  in mtu3_probe_show()
286 	seq_printf(sf, "0x%04x - 0x%08x\n", (u32)regs->offset,  in mtu3_probe_show()
287 		   mtu3_readl(mtu->ippc_base, (u32)regs->offset));  in mtu3_probe_show()
294 	return single_open(file, mtu3_probe_show, inode->i_private);  in mtu3_probe_open()
300 	struct seq_file *sf = file->private_data;  in mtu3_probe_write()
301 	struct mtu3 *mtu = sf->private;  in mtu3_probe_write()
306 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in mtu3_probe_write()
307 		return -EFAULT;  in mtu3_probe_write()
310 		return -EINVAL;  in mtu3_probe_write()
312 	mtu3_writel(mtu->ippc_base, (u32)regs->offset, val);  in mtu3_probe_write()
327 	struct ssusb_mtk *ssusb = mtu->ssusb;  in mtu3_debugfs_create_prb_files()
332 	dir_prb = debugfs_create_dir("probe", ssusb->dbgfs_root);  in mtu3_debugfs_create_prb_files()
336 		debugfs_create_file_aux(regs->name, 0644, dir_prb,  in mtu3_debugfs_create_prb_files()
340 	mtu3_debugfs_regset(mtu, mtu->ippc_base, mtu3_prb_regs,  in mtu3_debugfs_create_prb_files()
351 	dir_ep = debugfs_create_dir(mep->name, parent);  in mtu3_debugfs_create_ep_dir()
352 	mtu3_debugfs_ep_regset(mep->mtu, mep, dir_ep);  in mtu3_debugfs_create_ep_dir()
357 		debugfs_create_file_aux(files->name, 0444, dir_ep,  in mtu3_debugfs_create_ep_dir()
364 	struct ssusb_mtk *ssusb = mtu->ssusb;  in mtu3_debugfs_create_ep_dirs()
368 	dir_eps = debugfs_create_dir("eps", ssusb->dbgfs_root);  in mtu3_debugfs_create_ep_dirs()
370 	for (i = 1; i < mtu->num_eps; i++) {  in mtu3_debugfs_create_ep_dirs()
371 		mtu3_debugfs_create_ep_dir(mtu->in_eps + i, dir_eps);  in mtu3_debugfs_create_ep_dirs()
372 		mtu3_debugfs_create_ep_dir(mtu->out_eps + i, dir_eps);  in mtu3_debugfs_create_ep_dirs()
378 	struct mtu3 *mtu = ssusb->u3d;  in ssusb_dev_debugfs_init()
381 	dir_regs = debugfs_create_dir("regs", ssusb->dbgfs_root);  in ssusb_dev_debugfs_init()
383 	mtu3_debugfs_regset(mtu, mtu->ippc_base,  in ssusb_dev_debugfs_init()
385 			    "reg-ippc", dir_regs);  in ssusb_dev_debugfs_init()
387 	mtu3_debugfs_regset(mtu, mtu->mac_base,  in ssusb_dev_debugfs_init()
389 			    "reg-dev", dir_regs);  in ssusb_dev_debugfs_init()
391 	mtu3_debugfs_regset(mtu, mtu->mac_base,  in ssusb_dev_debugfs_init()
393 			    "reg-csr", dir_regs);  in ssusb_dev_debugfs_init()
399 	debugfs_create_file("link-state", 0444, ssusb->dbgfs_root,  in ssusb_dev_debugfs_init()
401 	debugfs_create_file("ep-used", 0444, ssusb->dbgfs_root,  in ssusb_dev_debugfs_init()
407 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_mode_show()
409 	seq_printf(sf, "current mode: %s(%s drd)\n(echo device/host)\n",  in ssusb_mode_show()
410 		   ssusb->is_host ? "host" : "device",  in ssusb_mode_show()
411 		   ssusb->otg_switch.manual_drd_enabled ? "manual" : "auto");  in ssusb_mode_show()
418 	return single_open(file, ssusb_mode_show, inode->i_private);  in ssusb_mode_open()
424 	struct seq_file *sf = file->private_data;  in ssusb_mode_write()
425 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_mode_write()
428 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in ssusb_mode_write()
429 		return -EFAULT;  in ssusb_mode_write()
431 	if (!strncmp(buf, "host", 4) && !ssusb->is_host) {  in ssusb_mode_write()
433 	} else if (!strncmp(buf, "device", 6) && ssusb->is_host) {  in ssusb_mode_write()
436 		dev_err(ssusb->dev, "wrong or duplicated setting\n");  in ssusb_mode_write()
437 		return -EINVAL;  in ssusb_mode_write()
453 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_vbus_show()
454 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;  in ssusb_vbus_show()
457 		   str_on_off(regulator_is_enabled(otg_sx->vbus)));  in ssusb_vbus_show()
464 	return single_open(file, ssusb_vbus_show, inode->i_private);  in ssusb_vbus_open()
470 	struct seq_file *sf = file->private_data;  in ssusb_vbus_write()
471 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_vbus_write()
472 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;  in ssusb_vbus_write()
474 	bool enable;  in ssusb_vbus_write()  local
476 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in ssusb_vbus_write()
477 		return -EFAULT;  in ssusb_vbus_write()
479 	if (kstrtobool(buf, &enable)) {  in ssusb_vbus_write()
480 		dev_err(ssusb->dev, "wrong setting\n");  in ssusb_vbus_write()
481 		return -EINVAL;  in ssusb_vbus_write()
484 	ssusb_set_vbus(otg_sx, enable);  in ssusb_vbus_write()
499 	struct dentry *root = ssusb->dbgfs_root;  in ssusb_dr_debugfs_init()
507 	ssusb->dbgfs_root =  in ssusb_debugfs_create_root()
508 		debugfs_create_dir(dev_name(ssusb->dev), usb_debug_root);  in ssusb_debugfs_create_root()
513 	debugfs_remove_recursive(ssusb->dbgfs_root);  in ssusb_debugfs_remove_root()
514 	ssusb->dbgfs_root = NULL;  in ssusb_debugfs_remove_root()