1 // SPDX-License-Identifier: GPL-2.0
3  * mtu3_debugfs.c - debugfs interface
81 	struct mtu3 *mtu = sf->private;  in mtu3_link_state_show()
82 	void __iomem *mbase = mtu->mac_base;  in mtu3_link_state_show()
93 	struct mtu3 *mtu = sf->private;  in mtu3_ep_used_show()
99 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_ep_used_show()
101 	for (i = 0; i < mtu->num_eps; i++) {  in mtu3_ep_used_show()
102 		mep = mtu->in_eps + i;  in mtu3_ep_used_show()
103 		if (mep->flags & MTU3_EP_ENABLED) {  in mtu3_ep_used_show()
104 			seq_printf(sf, "%s - type: %s\n", mep->name, usb_ep_type_string(mep->type));  in mtu3_ep_used_show()
108 		mep = mtu->out_eps + i;  in mtu3_ep_used_show()
109 		if (mep->flags & MTU3_EP_ENABLED) {  in mtu3_ep_used_show()
110 			seq_printf(sf, "%s - type: %s\n", mep->name, usb_ep_type_string(mep->type));  in mtu3_ep_used_show()
116 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_ep_used_show()
131 	mregs = devm_kzalloc(mtu->dev, sizeof(*mregs), GFP_KERNEL);  in mtu3_debugfs_regset()
135 	sprintf(mregs->name, "%s", name);  in mtu3_debugfs_regset()
136 	regset = &mregs->regset;  in mtu3_debugfs_regset()
137 	regset->regs = regs;  in mtu3_debugfs_regset()
138 	regset->nregs = nregs;  in mtu3_debugfs_regset()
139 	regset->base = base;  in mtu3_debugfs_regset()
141 	debugfs_create_regset32(mregs->name, 0444, parent, regset);  in mtu3_debugfs_regset()
148 	int epnum = mep->epnum;  in mtu3_debugfs_ep_regset()
149 	int in = mep->is_in;  in mtu3_debugfs_ep_regset()
151 	regs = devm_kcalloc(mtu->dev, 7, sizeof(*regs), GFP_KERNEL);  in mtu3_debugfs_ep_regset()
170 	mtu3_debugfs_regset(mtu, mtu->mac_base, regs, 7, "ep-regs", parent);  in mtu3_debugfs_ep_regset()
175 	struct mtu3_ep *mep = sf->private;  in mtu3_ep_info_show()
176 	struct mtu3 *mtu = mep->mtu;  in mtu3_ep_info_show()
179 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_ep_info_show()
180 	seq_printf(sf, "ep - type:%s, maxp:%d, slot:%d, flags:%x\n",  in mtu3_ep_info_show()
181 		   usb_ep_type_string(mep->type), mep->maxp, mep->slot, mep->flags);  in mtu3_ep_info_show()
182 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_ep_info_show()
189 	struct mtu3_ep *mep = sf->private;  in mtu3_fifo_show()
190 	struct mtu3 *mtu = mep->mtu;  in mtu3_fifo_show()
193 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_fifo_show()
194 	seq_printf(sf, "fifo - seg_size:%d, addr:%d, size:%d\n",  in mtu3_fifo_show()
195 		   mep->fifo_seg_size, mep->fifo_addr, mep->fifo_size);  in mtu3_fifo_show()
196 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_fifo_show()
203 	struct mtu3_ep *mep = sf->private;  in mtu3_qmu_ring_show()
204 	struct mtu3 *mtu = mep->mtu;  in mtu3_qmu_ring_show()
208 	ring = &mep->gpd_ring;  in mtu3_qmu_ring_show()
209 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_qmu_ring_show()
211 		   "qmu-ring - dma:%pad, start:%p, end:%p, enq:%p, dep:%p\n",  in mtu3_qmu_ring_show()
212 		   &ring->dma, ring->start, ring->end,  in mtu3_qmu_ring_show()
213 		   ring->enqueue, ring->dequeue);  in mtu3_qmu_ring_show()
214 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_qmu_ring_show()
221 	struct mtu3_ep *mep = sf->private;  in mtu3_qmu_gpd_show()
222 	struct mtu3 *mtu = mep->mtu;  in mtu3_qmu_gpd_show()
229 	spin_lock_irqsave(&mtu->lock, flags);  in mtu3_qmu_gpd_show()
230 	ring = &mep->gpd_ring;  in mtu3_qmu_gpd_show()
231 	gpd = ring->start;  in mtu3_qmu_gpd_show()
232 	if (!gpd || !(mep->flags & MTU3_EP_ENABLED)) {  in mtu3_qmu_gpd_show()
238 		dma = ring->dma + i * sizeof(*gpd);  in mtu3_qmu_gpd_show()
239 		seq_printf(sf, "gpd.%03d -> %pad, %p: %08x %08x %08x %08x\n",  in mtu3_qmu_gpd_show()
240 			   i, &dma, gpd, gpd->dw0_info, gpd->next_gpd,  in mtu3_qmu_gpd_show()
241 			   gpd->buffer, gpd->dw3_info);  in mtu3_qmu_gpd_show()
245 	spin_unlock_irqrestore(&mtu->lock, flags);  in mtu3_qmu_gpd_show()
251 	{"ep-info", mtu3_ep_info_show, },
253 	{"qmu-ring", mtu3_qmu_ring_show, },
254 	{"qmu-gpd", mtu3_qmu_gpd_show, },
259 	const char *file_name = file_dentry(file)->d_iname;  in mtu3_ep_open()
266 		if (strcmp(f_map->name, file_name) == 0)  in mtu3_ep_open()
270 	return single_open(file, f_map->show, inode->i_private);  in mtu3_ep_open()
281 	dump_prb_reg("enable", U3D_SSUSB_PRB_CTRL0),
282 	dump_prb_reg("byte-sell", U3D_SSUSB_PRB_CTRL1),
283 	dump_prb_reg("byte-selh", U3D_SSUSB_PRB_CTRL2),
284 	dump_prb_reg("module-sel", U3D_SSUSB_PRB_CTRL3),
285 	dump_prb_reg("sw-out", U3D_SSUSB_PRB_CTRL4),
291 	const char *file_name = file_dentry(sf->file)->d_iname;  in mtu3_probe_show()
292 	struct mtu3 *mtu = sf->private;  in mtu3_probe_show()
299 		if (strcmp(regs->name, file_name) == 0)  in mtu3_probe_show()
303 	seq_printf(sf, "0x%04x - 0x%08x\n", (u32)regs->offset,  in mtu3_probe_show()
304 		   mtu3_readl(mtu->ippc_base, (u32)regs->offset));  in mtu3_probe_show()
311 	return single_open(file, mtu3_probe_show, inode->i_private);  in mtu3_probe_open()
317 	const char *file_name = file_dentry(file)->d_iname;  in mtu3_probe_write()
318 	struct seq_file *sf = file->private_data;  in mtu3_probe_write()
319 	struct mtu3 *mtu = sf->private;  in mtu3_probe_write()
325 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in mtu3_probe_write()
326 		return -EFAULT;  in mtu3_probe_write()
329 		return -EINVAL;  in mtu3_probe_write()
334 		if (strcmp(regs->name, file_name) == 0)  in mtu3_probe_write()
337 	mtu3_writel(mtu->ippc_base, (u32)regs->offset, val);  in mtu3_probe_write()
352 	struct ssusb_mtk *ssusb = mtu->ssusb;  in mtu3_debugfs_create_prb_files()
357 	dir_prb = debugfs_create_dir("probe", ssusb->dbgfs_root);  in mtu3_debugfs_create_prb_files()
361 		debugfs_create_file(regs->name, 0644, dir_prb,  in mtu3_debugfs_create_prb_files()
365 	mtu3_debugfs_regset(mtu, mtu->ippc_base, mtu3_prb_regs,  in mtu3_debugfs_create_prb_files()
376 	dir_ep = debugfs_create_dir(mep->name, parent);  in mtu3_debugfs_create_ep_dir()
377 	mtu3_debugfs_ep_regset(mep->mtu, mep, dir_ep);  in mtu3_debugfs_create_ep_dir()
382 		debugfs_create_file(files->name, 0444, dir_ep,  in mtu3_debugfs_create_ep_dir()
389 	struct ssusb_mtk *ssusb = mtu->ssusb;  in mtu3_debugfs_create_ep_dirs()
393 	dir_eps = debugfs_create_dir("eps", ssusb->dbgfs_root);  in mtu3_debugfs_create_ep_dirs()
395 	for (i = 1; i < mtu->num_eps; i++) {  in mtu3_debugfs_create_ep_dirs()
396 		mtu3_debugfs_create_ep_dir(mtu->in_eps + i, dir_eps);  in mtu3_debugfs_create_ep_dirs()
397 		mtu3_debugfs_create_ep_dir(mtu->out_eps + i, dir_eps);  in mtu3_debugfs_create_ep_dirs()
403 	struct mtu3 *mtu = ssusb->u3d;  in ssusb_dev_debugfs_init()
406 	dir_regs = debugfs_create_dir("regs", ssusb->dbgfs_root);  in ssusb_dev_debugfs_init()
408 	mtu3_debugfs_regset(mtu, mtu->ippc_base,  in ssusb_dev_debugfs_init()
410 			    "reg-ippc", dir_regs);  in ssusb_dev_debugfs_init()
412 	mtu3_debugfs_regset(mtu, mtu->mac_base,  in ssusb_dev_debugfs_init()
414 			    "reg-dev", dir_regs);  in ssusb_dev_debugfs_init()
416 	mtu3_debugfs_regset(mtu, mtu->mac_base,  in ssusb_dev_debugfs_init()
418 			    "reg-csr", dir_regs);  in ssusb_dev_debugfs_init()
424 	debugfs_create_file("link-state", 0444, ssusb->dbgfs_root,  in ssusb_dev_debugfs_init()
426 	debugfs_create_file("ep-used", 0444, ssusb->dbgfs_root,  in ssusb_dev_debugfs_init()
432 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_mode_show()
434 	seq_printf(sf, "current mode: %s(%s drd)\n(echo device/host)\n",  in ssusb_mode_show()
435 		   ssusb->is_host ? "host" : "device",  in ssusb_mode_show()
436 		   ssusb->otg_switch.manual_drd_enabled ? "manual" : "auto");  in ssusb_mode_show()
443 	return single_open(file, ssusb_mode_show, inode->i_private);  in ssusb_mode_open()
449 	struct seq_file *sf = file->private_data;  in ssusb_mode_write()
450 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_mode_write()
453 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in ssusb_mode_write()
454 		return -EFAULT;  in ssusb_mode_write()
456 	if (!strncmp(buf, "host", 4) && !ssusb->is_host) {  in ssusb_mode_write()
458 	} else if (!strncmp(buf, "device", 6) && ssusb->is_host) {  in ssusb_mode_write()
461 		dev_err(ssusb->dev, "wrong or duplicated setting\n");  in ssusb_mode_write()
462 		return -EINVAL;  in ssusb_mode_write()
478 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_vbus_show()
479 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;  in ssusb_vbus_show()
482 		   regulator_is_enabled(otg_sx->vbus) ? "on" : "off");  in ssusb_vbus_show()
489 	return single_open(file, ssusb_vbus_show, inode->i_private);  in ssusb_vbus_open()
495 	struct seq_file *sf = file->private_data;  in ssusb_vbus_write()
496 	struct ssusb_mtk *ssusb = sf->private;  in ssusb_vbus_write()
497 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;  in ssusb_vbus_write()
499 	bool enable;  in ssusb_vbus_write()  local
501 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))  in ssusb_vbus_write()
502 		return -EFAULT;  in ssusb_vbus_write()
504 	if (kstrtobool(buf, &enable)) {  in ssusb_vbus_write()
505 		dev_err(ssusb->dev, "wrong setting\n");  in ssusb_vbus_write()
506 		return -EINVAL;  in ssusb_vbus_write()
509 	ssusb_set_vbus(otg_sx, enable);  in ssusb_vbus_write()
524 	struct dentry *root = ssusb->dbgfs_root;  in ssusb_dr_debugfs_init()
532 	ssusb->dbgfs_root =  in ssusb_debugfs_create_root()
533 		debugfs_create_dir(dev_name(ssusb->dev), usb_debug_root);  in ssusb_debugfs_create_root()
538 	debugfs_remove_recursive(ssusb->dbgfs_root);  in ssusb_debugfs_remove_root()
539 	ssusb->dbgfs_root = NULL;  in ssusb_debugfs_remove_root()