1 files changed, 0 insertions, 439 deletions
diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c
deleted file mode 100644
index 02a1344fbd6a..000000000000
--- a/drivers/usb/host/imx21-dbg.c
+++ /dev/null
@@ -1,439 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (c) 2009 by Martin Fuzzey
- */
-
-/* this file is part of imx21-hcd.c */
-
-#ifdef CONFIG_DYNAMIC_DEBUG
-#define DEBUG
-#endif
-
-#ifndef DEBUG
-
-static inline void create_debug_files(struct imx21 *imx21) { }
-static inline void remove_debug_files(struct imx21 *imx21) { }
-static inline void debug_urb_submitted(struct imx21 *imx21, struct urb *urb) {}
-static inline void debug_urb_completed(struct imx21 *imx21, struct urb *urb,
-	int status) {}
-static inline void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb) {}
-static inline void debug_urb_queued_for_etd(struct imx21 *imx21,
-	struct urb *urb) {}
-static inline void debug_urb_queued_for_dmem(struct imx21 *imx21,
-	struct urb *urb) {}
-static inline void debug_etd_allocated(struct imx21 *imx21) {}
-static inline void debug_etd_freed(struct imx21 *imx21) {}
-static inline void debug_dmem_allocated(struct imx21 *imx21, int size) {}
-static inline void debug_dmem_freed(struct imx21 *imx21, int size) {}
-static inline void debug_isoc_submitted(struct imx21 *imx21,
-	int frame, struct td *td) {}
-static inline void debug_isoc_completed(struct imx21 *imx21,
-	int frame, struct td *td, int cc, int len) {}
-
-#else
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-static const char *dir_labels[] = {
-	"TD 0",
-	"OUT",
-	"IN",
-	"TD 1"
-};
-
-static const char *speed_labels[] = {
-	"Full",
-	"Low"
-};
-
-static const char *format_labels[] = {
-	"Control",
-	"ISO",
-	"Bulk",
-	"Interrupt"
-};
-
-static inline struct debug_stats *stats_for_urb(struct imx21 *imx21,
-	struct urb *urb)
-{
-	return usb_pipeisoc(urb->pipe) ?
-		&imx21->isoc_stats : &imx21->nonisoc_stats;
-}
-
-static void debug_urb_submitted(struct imx21 *imx21, struct urb *urb)
-{
-	stats_for_urb(imx21, urb)->submitted++;
-}
-
-static void debug_urb_completed(struct imx21 *imx21, struct urb *urb, int st)
-{
-	if (st)
-		stats_for_urb(imx21, urb)->completed_failed++;
-	else
-		stats_for_urb(imx21, urb)->completed_ok++;
-}
-
-static void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb)
-{
-	stats_for_urb(imx21, urb)->unlinked++;
-}
-
-static void debug_urb_queued_for_etd(struct imx21 *imx21, struct urb *urb)
-{
-	stats_for_urb(imx21, urb)->queue_etd++;
-}
-
-static void debug_urb_queued_for_dmem(struct imx21 *imx21, struct urb *urb)
-{
-	stats_for_urb(imx21, urb)->queue_dmem++;
-}
-
-static inline void debug_etd_allocated(struct imx21 *imx21)
-{
-	imx21->etd_usage.maximum = max(
-			++(imx21->etd_usage.value),
-			imx21->etd_usage.maximum);
-}
-
-static inline void debug_etd_freed(struct imx21 *imx21)
-{
-	imx21->etd_usage.value--;
-}
-
-static inline void debug_dmem_allocated(struct imx21 *imx21, int size)
-{
-	imx21->dmem_usage.value += size;
-	imx21->dmem_usage.maximum = max(
-			imx21->dmem_usage.value,
-			imx21->dmem_usage.maximum);
-}
-
-static inline void debug_dmem_freed(struct imx21 *imx21, int size)
-{
-	imx21->dmem_usage.value -= size;
-}
-
-
-static void debug_isoc_submitted(struct imx21 *imx21,
-	int frame, struct td *td)
-{
-	struct debug_isoc_trace *trace = &imx21->isoc_trace[
-		imx21->isoc_trace_index++];
-
-	imx21->isoc_trace_index %= ARRAY_SIZE(imx21->isoc_trace);
-	trace->schedule_frame = td->frame;
-	trace->submit_frame = frame;
-	trace->request_len = td->len;
-	trace->td = td;
-}
-
-static inline void debug_isoc_completed(struct imx21 *imx21,
-	int frame, struct td *td, int cc, int len)
-{
-	struct debug_isoc_trace *trace, *trace_failed;
-	int i;
-	int found = 0;
-
-	trace = imx21->isoc_trace;
-	for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++) {
-		if (trace->td == td) {
-			trace->done_frame = frame;
-			trace->done_len = len;
-			trace->cc = cc;
-			trace->td = NULL;
-			found = 1;
-			break;
-		}
-	}
-
-	if (found && cc) {
-		trace_failed = &imx21->isoc_trace_failed[
-					imx21->isoc_trace_index_failed++];
-
-		imx21->isoc_trace_index_failed %= ARRAY_SIZE(
-						imx21->isoc_trace_failed);
-		*trace_failed = *trace;
-	}
-}
-
-
-static char *format_ep(struct usb_host_endpoint *ep, char *buf, int bufsize)
-{
-	if (ep)
-		snprintf(buf, bufsize, "ep_%02x (type:%02X kaddr:%p)",
-			ep->desc.bEndpointAddress,
-			usb_endpoint_type(&ep->desc),
-			ep);
-	else
-		snprintf(buf, bufsize, "none");
-	return buf;
-}
-
-static char *format_etd_dword0(u32 value, char *buf, int bufsize)
-{
-	snprintf(buf, bufsize,
-		"addr=%d ep=%d dir=%s speed=%s format=%s halted=%d",
-		value & 0x7F,
-		(value >> DW0_ENDPNT) & 0x0F,
-		dir_labels[(value >> DW0_DIRECT) & 0x03],
-		speed_labels[(value >> DW0_SPEED) & 0x01],
-		format_labels[(value >> DW0_FORMAT) & 0x03],
-		(value >> DW0_HALTED) & 0x01);
-	return buf;
-}
-
-static int debug_status_show(struct seq_file *s, void *v)
-{
-	struct imx21 *imx21 = s->private;
-	int etds_allocated = 0;
-	int etds_sw_busy = 0;
-	int etds_hw_busy = 0;
-	int dmem_blocks = 0;
-	int queued_for_etd = 0;
-	int queued_for_dmem = 0;
-	unsigned int dmem_bytes = 0;
-	int i;
-	struct etd_priv *etd;
-	u32 etd_enable_mask;
-	unsigned long flags;
-	struct imx21_dmem_area *dmem;
-	struct ep_priv *ep_priv;
-
-	spin_lock_irqsave(&imx21->lock, flags);
-
-	etd_enable_mask = readl(imx21->regs + USBH_ETDENSET);
-	for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) {
-		if (etd->alloc)
-			etds_allocated++;
-		if (etd->urb)
-			etds_sw_busy++;
-		if (etd_enable_mask & (1<<i))
-			etds_hw_busy++;
-	}
-
-	list_for_each_entry(dmem, &imx21->dmem_list, list) {
-		dmem_bytes += dmem->size;
-		dmem_blocks++;
-	}
-
-	list_for_each_entry(ep_priv, &imx21->queue_for_etd, queue)
-		queued_for_etd++;
-
-	list_for_each_entry(etd, &imx21->queue_for_dmem, queue)
-		queued_for_dmem++;
-
-	spin_unlock_irqrestore(&imx21->lock, flags);
-
-	seq_printf(s,
-		"Frame: %d\n"
-		"ETDs allocated: %d/%d (max=%d)\n"
-		"ETDs in use sw: %d\n"
-		"ETDs in use hw: %d\n"
-		"DMEM allocated: %d/%d (max=%d)\n"
-		"DMEM blocks: %d\n"
-		"Queued waiting for ETD: %d\n"
-		"Queued waiting for DMEM: %d\n",
-		readl(imx21->regs + USBH_FRMNUB) & 0xFFFF,
-		etds_allocated, USB_NUM_ETD, imx21->etd_usage.maximum,
-		etds_sw_busy,
-		etds_hw_busy,
-		dmem_bytes, DMEM_SIZE, imx21->dmem_usage.maximum,
-		dmem_blocks,
-		queued_for_etd,
-		queued_for_dmem);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(debug_status);
-
-static int debug_dmem_show(struct seq_file *s, void *v)
-{
-	struct imx21 *imx21 = s->private;
-	struct imx21_dmem_area *dmem;
-	unsigned long flags;
-	char ep_text[40];
-
-	spin_lock_irqsave(&imx21->lock, flags);
-
-	list_for_each_entry(dmem, &imx21->dmem_list, list)
-		seq_printf(s,
-			"%04X: size=0x%X "
-			"ep=%s\n",
-			dmem->offset, dmem->size,
-			format_ep(dmem->ep, ep_text, sizeof(ep_text)));
-
-	spin_unlock_irqrestore(&imx21->lock, flags);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(debug_dmem);
-
-static int debug_etd_show(struct seq_file *s, void *v)
-{
-	struct imx21 *imx21 = s->private;
-	struct etd_priv *etd;
-	char buf[60];
-	u32 dword;
-	int i, j;
-	unsigned long flags;
-
-	spin_lock_irqsave(&imx21->lock, flags);
-
-	for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) {
-		int state = -1;
-		struct urb_priv *urb_priv;
-		if (etd->urb) {
-			urb_priv = etd->urb->hcpriv;
-			if (urb_priv)
-				state = urb_priv->state;
-		}
-
-		seq_printf(s,
-			"etd_num: %d\n"
-			"ep: %s\n"
-			"alloc: %d\n"
-			"len: %d\n"
-			"busy sw: %d\n"
-			"busy hw: %d\n"
-			"urb state: %d\n"
-			"current urb: %p\n",
-
-			i,
-			format_ep(etd->ep, buf, sizeof(buf)),
-			etd->alloc,
-			etd->len,
-			etd->urb != NULL,
-			(readl(imx21->regs + USBH_ETDENSET) & (1 << i)) > 0,
-			state,
-			etd->urb);
-
-		for (j = 0; j < 4; j++) {
-			dword = etd_readl(imx21, i, j);
-			switch (j) {
-			case 0:
-				format_etd_dword0(dword, buf, sizeof(buf));
-				break;
-			case 2:
-				snprintf(buf, sizeof(buf),
-					"cc=0X%02X", dword >> DW2_COMPCODE);
-				break;
-			default:
-				*buf = 0;
-				break;
-			}
-			seq_printf(s,
-				"dword %d: submitted=%08X cur=%08X [%s]\n",
-				j,
-				etd->submitted_dwords[j],
-				dword,
-				buf);
-		}
-		seq_printf(s, "\n");
-	}
-
-	spin_unlock_irqrestore(&imx21->lock, flags);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(debug_etd);
-
-static void debug_statistics_show_one(struct seq_file *s,
-	const char *name, struct debug_stats *stats)
-{
-	seq_printf(s, "%s:\n"
-		"submitted URBs: %lu\n"
-		"completed OK: %lu\n"
-		"completed failed: %lu\n"
-		"unlinked: %lu\n"
-		"queued for ETD: %lu\n"
-		"queued for DMEM: %lu\n\n",
-		name,
-		stats->submitted,
-		stats->completed_ok,
-		stats->completed_failed,
-		stats->unlinked,
-		stats->queue_etd,
-		stats->queue_dmem);
-}
-
-static int debug_statistics_show(struct seq_file *s, void *v)
-{
-	struct imx21 *imx21 = s->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&imx21->lock, flags);
-
-	debug_statistics_show_one(s, "nonisoc", &imx21->nonisoc_stats);
-	debug_statistics_show_one(s, "isoc", &imx21->isoc_stats);
-	seq_printf(s, "unblock kludge triggers: %lu\n", imx21->debug_unblocks);
-	spin_unlock_irqrestore(&imx21->lock, flags);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(debug_statistics);
-
-static void debug_isoc_show_one(struct seq_file *s,
-	const char *name, int index, 	struct debug_isoc_trace *trace)
-{
-	seq_printf(s, "%s %d:\n"
-		"cc=0X%02X\n"
-		"scheduled frame %d (%d)\n"
-		"submitted frame %d (%d)\n"
-		"completed frame %d (%d)\n"
-		"requested length=%d\n"
-		"completed length=%d\n\n",
-		name, index,
-		trace->cc,
-		trace->schedule_frame, trace->schedule_frame & 0xFFFF,
-		trace->submit_frame, trace->submit_frame & 0xFFFF,
-		trace->done_frame, trace->done_frame & 0xFFFF,
-		trace->request_len,
-		trace->done_len);
-}
-
-static int debug_isoc_show(struct seq_file *s, void *v)
-{
-	struct imx21 *imx21 = s->private;
-	struct debug_isoc_trace *trace;
-	unsigned long flags;
-	int i;
-
-	spin_lock_irqsave(&imx21->lock, flags);
-
-	trace = imx21->isoc_trace_failed;
-	for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace_failed); i++, trace++)
-		debug_isoc_show_one(s, "isoc failed", i, trace);
-
-	trace = imx21->isoc_trace;
-	for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++)
-		debug_isoc_show_one(s, "isoc", i, trace);
-
-	spin_unlock_irqrestore(&imx21->lock, flags);
-
-	return 0;
-}
-DEFINE_SHOW_ATTRIBUTE(debug_isoc);
-
-static void create_debug_files(struct imx21 *imx21)
-{
-	struct dentry *root;
-
-	root = debugfs_create_dir(dev_name(imx21->dev), usb_debug_root);
-	imx21->debug_root = root;
-
-	debugfs_create_file("status", S_IRUGO, root, imx21, &debug_status_fops);
-	debugfs_create_file("dmem", S_IRUGO, root, imx21, &debug_dmem_fops);
-	debugfs_create_file("etd", S_IRUGO, root, imx21, &debug_etd_fops);
-	debugfs_create_file("statistics", S_IRUGO, root, imx21,
-			    &debug_statistics_fops);
-	debugfs_create_file("isoc", S_IRUGO, root, imx21, &debug_isoc_fops);
-}
-
-static void remove_debug_files(struct imx21 *imx21)
-{
-	debugfs_remove_recursive(imx21->debug_root);
-}
-
-#endif
-