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path: root/drivers/usb/host/imx21-dbg.c
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Diffstat (limited to 'drivers/usb/host/imx21-dbg.c')
-rw-r--r--drivers/usb/host/imx21-dbg.c439
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
-