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authorHauke Mehrtens <hauke@hauke-m.de>2019-03-25 15:10:39 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2019-05-03 21:27:12 +0200
commit2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37 (patch)
treefa266fc04fd47b42cbc0bd7ae6e6d51c48f64eb2 /target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c
parent49dca520fb900410a436baa58404539aa1e10381 (diff)
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adm5120: Remove unmaintained target
This target only supports kernel 3.18, which is not supported in OpenWrt any more for multiple releases. It also looks like there is no active maintainer for this target. Remove the code and all the packages which are only used by this target. To add this target to OpenWrt again port it to a recent and supported kernel version. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c')
-rw-r--r--target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c836
1 files changed, 0 insertions, 836 deletions
diff --git a/target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c b/target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c
deleted file mode 100644
index 2d5dc2a5a7..0000000000
--- a/target/linux/adm5120/files-3.18/drivers/usb/host/adm5120-dbg.c
+++ /dev/null
@@ -1,836 +0,0 @@
-/*
- * ADM5120 HCD (Host Controller Driver) for USB
- *
- * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
- *
- * This file was derived from: drivers/usb/host/ohci-dbg.c
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- */
-
-/*-------------------------------------------------------------------------*/
-
-static inline char *ed_typestring(int ed_type)
-{
- switch (ed_type) {
- case PIPE_CONTROL:
- return "ctrl";
- case PIPE_BULK:
- return "bulk";
- case PIPE_INTERRUPT:
- return "intr";
- case PIPE_ISOCHRONOUS:
- return "isoc";
- }
- return "(bad ed_type)";
-}
-
-static inline char *ed_statestring(int state)
-{
- switch (state) {
- case ED_IDLE:
- return "IDLE";
- case ED_UNLINK:
- return "UNLINK";
- case ED_OPER:
- return "OPER";
- }
- return "?STATE";
-}
-
-static inline char *pipestring(int pipe)
-{
- return ed_typestring(usb_pipetype(pipe));
-}
-
-static inline char *td_pidstring(u32 info)
-{
- switch (info & TD_DP) {
- case TD_DP_SETUP:
- return "SETUP";
- case TD_DP_IN:
- return "IN";
- case TD_DP_OUT:
- return "OUT";
- }
- return "?PID";
-}
-
-static inline char *td_togglestring(u32 info)
-{
- switch (info & TD_T) {
- case TD_T_DATA0:
- return "DATA0";
- case TD_T_DATA1:
- return "DATA1";
- case TD_T_CARRY:
- return "CARRY";
- }
- return "?TOGGLE";
-}
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef DEBUG
-
-/* debug| print the main components of an URB
- * small: 0) header + data packets 1) just header
- */
-static void __attribute__((unused))
-urb_print(struct admhcd *ahcd, struct urb *urb, char *str, int small, int status)
-{
- unsigned int pipe = urb->pipe;
-
- if (!urb->dev || !urb->dev->bus) {
- admhc_dbg(ahcd, "%s URB: no dev", str);
- return;
- }
-
-#ifndef ADMHC_VERBOSE_DEBUG
- if (status != 0)
-#endif
- admhc_dbg(ahcd, "URB-%s %p dev=%d ep=%d%s-%s flags=%x len=%d/%d "
- "stat=%d\n",
- str,
- urb,
- usb_pipedevice(pipe),
- usb_pipeendpoint(pipe),
- usb_pipeout(pipe) ? "out" : "in",
- pipestring(pipe),
- urb->transfer_flags,
- urb->actual_length,
- urb->transfer_buffer_length,
- status);
-
-#ifdef ADMHC_VERBOSE_DEBUG
- if (!small) {
- int i, len;
-
- if (usb_pipecontrol(pipe)) {
- admhc_dbg(ahcd, "setup(8):");
- for (i = 0; i < 8 ; i++)
- printk(KERN_INFO" %02x", ((__u8 *)urb->setup_packet)[i]);
- printk(KERN_INFO "\n");
- }
- if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
- admhc_dbg(ahcd, "data(%d/%d):",
- urb->actual_length,
- urb->transfer_buffer_length);
- len = usb_pipeout(pipe) ?
- urb->transfer_buffer_length : urb->actual_length;
- for (i = 0; i < 16 && i < len; i++)
- printk(KERN_INFO " %02x", ((__u8 *)urb->transfer_buffer)[i]);
- printk(KERN_INFO "%s stat:%d\n", i < len ? "..." : "", status);
- }
- }
-#endif /* ADMHC_VERBOSE_DEBUG */
-}
-
-#define admhc_dbg_sw(ahcd, next, size, format, arg...) \
- do { \
- if (next) { \
- unsigned s_len; \
- s_len = scnprintf(*next, *size, format, ## arg); \
- *size -= s_len; *next += s_len; \
- } else \
- admhc_dbg(ahcd, format, ## arg); \
- } while (0);
-
-
-static void admhc_dump_intr_mask(struct admhcd *ahcd, char *label, u32 mask,
- char **next, unsigned *size)
-{
- admhc_dbg_sw(ahcd, next, size, "%s 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s\n",
- label,
- mask,
- (mask & ADMHC_INTR_INTA) ? " INTA" : "",
- (mask & ADMHC_INTR_FATI) ? " FATI" : "",
- (mask & ADMHC_INTR_SWI) ? " SWI" : "",
- (mask & ADMHC_INTR_TDC) ? " TDC" : "",
- (mask & ADMHC_INTR_FNO) ? " FNO" : "",
- (mask & ADMHC_INTR_SO) ? " SO" : "",
- (mask & ADMHC_INTR_INSM) ? " INSM" : "",
- (mask & ADMHC_INTR_BABI) ? " BABI" : "",
- (mask & ADMHC_INTR_7) ? " !7!" : "",
- (mask & ADMHC_INTR_6) ? " !6!" : "",
- (mask & ADMHC_INTR_RESI) ? " RESI" : "",
- (mask & ADMHC_INTR_SOFI) ? " SOFI" : ""
- );
-}
-
-static void maybe_print_eds(struct admhcd *ahcd, char *label, u32 value,
- char **next, unsigned *size)
-{
- if (value)
- admhc_dbg_sw(ahcd, next, size, "%s %08x\n", label, value);
-}
-
-static char *buss2string(int state)
-{
- switch (state) {
- case ADMHC_BUSS_RESET:
- return "reset";
- case ADMHC_BUSS_RESUME:
- return "resume";
- case ADMHC_BUSS_OPER:
- return "operational";
- case ADMHC_BUSS_SUSPEND:
- return "suspend";
- }
- return "?state";
-}
-
-static void
-admhc_dump_status(struct admhcd *ahcd, char **next, unsigned *size)
-{
- struct admhcd_regs __iomem *regs = ahcd->regs;
- u32 temp;
-
- temp = admhc_readl(ahcd, &regs->gencontrol);
- admhc_dbg_sw(ahcd, next, size,
- "gencontrol 0x%08x%s%s%s%s\n",
- temp,
- (temp & ADMHC_CTRL_UHFE) ? " UHFE" : "",
- (temp & ADMHC_CTRL_SIR) ? " SIR" : "",
- (temp & ADMHC_CTRL_DMAA) ? " DMAA" : "",
- (temp & ADMHC_CTRL_SR) ? " SR" : ""
- );
-
- temp = admhc_readl(ahcd, &regs->host_control);
- admhc_dbg_sw(ahcd, next, size,
- "host_control 0x%08x BUSS=%s%s\n",
- temp,
- buss2string(temp & ADMHC_HC_BUSS),
- (temp & ADMHC_HC_DMAE) ? " DMAE" : ""
- );
-
- admhc_dump_intr_mask(ahcd, "int_status",
- admhc_readl(ahcd, &regs->int_status),
- next, size);
- admhc_dump_intr_mask(ahcd, "int_enable",
- admhc_readl(ahcd, &regs->int_enable),
- next, size);
-
- maybe_print_eds(ahcd, "hosthead",
- admhc_readl(ahcd, &regs->hosthead), next, size);
-}
-
-#define dbg_port_sw(hc, num, value, next, size) \
- admhc_dbg_sw(hc, next, size, \
- "portstatus [%d] " \
- "0x%08x%s%s%s%s%s%s%s%s%s%s%s%s\n", \
- num, temp, \
- (temp & ADMHC_PS_PRSC) ? " PRSC" : "", \
- (temp & ADMHC_PS_OCIC) ? " OCIC" : "", \
- (temp & ADMHC_PS_PSSC) ? " PSSC" : "", \
- (temp & ADMHC_PS_PESC) ? " PESC" : "", \
- (temp & ADMHC_PS_CSC) ? " CSC" : "", \
- \
- (temp & ADMHC_PS_LSDA) ? " LSDA" : "", \
- (temp & ADMHC_PS_PPS) ? " PPS" : "", \
- (temp & ADMHC_PS_PRS) ? " PRS" : "", \
- (temp & ADMHC_PS_POCI) ? " POCI" : "", \
- (temp & ADMHC_PS_PSS) ? " PSS" : "", \
- \
- (temp & ADMHC_PS_PES) ? " PES" : "", \
- (temp & ADMHC_PS_CCS) ? " CCS" : "" \
- );
-
-
-static void
-admhc_dump_roothub(
- struct admhcd *ahcd,
- int verbose,
- char **next,
- unsigned *size)
-{
- u32 temp, i;
-
- temp = admhc_read_rhdesc(ahcd);
- if (temp == ~(u32)0)
- return;
-
- if (verbose) {
- admhc_dbg_sw(ahcd, next, size,
- "rhdesc %08x%s%s%s%s%s%s PPCM=%02x%s%s%s%s NUMP=%d(%d)\n",
- temp,
- (temp & ADMHC_RH_CRWE) ? " CRWE" : "",
- (temp & ADMHC_RH_OCIC) ? " OCIC" : "",
- (temp & ADMHC_RH_LPSC) ? " LPSC" : "",
- (temp & ADMHC_RH_LPSC) ? " DRWE" : "",
- (temp & ADMHC_RH_LPSC) ? " OCI" : "",
- (temp & ADMHC_RH_LPSC) ? " LPS" : "",
- ((temp & ADMHC_RH_PPCM) >> 16),
- (temp & ADMHC_RH_NOCP) ? " NOCP" : "",
- (temp & ADMHC_RH_OCPM) ? " OCPM" : "",
- (temp & ADMHC_RH_NPS) ? " NPS" : "",
- (temp & ADMHC_RH_PSM) ? " PSM" : "",
- (temp & ADMHC_RH_NUMP), ahcd->num_ports
- );
- }
-
- for (i = 0; i < ahcd->num_ports; i++) {
- temp = admhc_read_portstatus(ahcd, i);
- dbg_port_sw(ahcd, i, temp, next, size);
- }
-}
-
-static void admhc_dump(struct admhcd *ahcd, int verbose)
-{
- admhc_dbg(ahcd, "ADMHC ahcd state\n");
-
- /* dumps some of the state we know about */
- admhc_dump_status(ahcd, NULL, NULL);
- admhc_dbg(ahcd, "current frame #%04x\n",
- admhc_frame_no(ahcd));
-
- admhc_dump_roothub(ahcd, verbose, NULL, NULL);
-}
-
-static const char data0[] = "DATA0";
-static const char data1[] = "DATA1";
-
-static void admhc_dump_td(const struct admhcd *ahcd, const char *label,
- const struct td *td)
-{
- u32 tmp;
-
- admhc_dbg(ahcd, "%s td %p; urb %p index %d; hwNextTD %08x\n",
- label, td,
- td->urb, td->index,
- hc32_to_cpup(ahcd, &td->hwNextTD));
-
- tmp = hc32_to_cpup(ahcd, &td->hwINFO);
- admhc_dbg(ahcd, " status %08x%s CC=%x EC=%d %s %s ISI=%x FN=%x\n",
- tmp,
- (tmp & TD_OWN) ? " OWN" : "",
- TD_CC_GET(tmp),
- TD_EC_GET(tmp),
- td_togglestring(tmp),
- td_pidstring(tmp),
- TD_ISI_GET(tmp),
- TD_FN_GET(tmp));
-
- tmp = hc32_to_cpup(ahcd, &td->hwCBL);
- admhc_dbg(ahcd, " dbp %08x; cbl %08x; LEN=%d%s\n",
- hc32_to_cpup(ahcd, &td->hwDBP),
- tmp,
- TD_BL_GET(tmp),
- (tmp & TD_IE) ? " IE" : "");
-}
-
-/* caller MUST own hcd spinlock if verbose is set! */
-static void __attribute__((unused))
-admhc_dump_ed(const struct admhcd *ahcd, const char *label,
- const struct ed *ed, int verbose)
-{
- u32 tmp = hc32_to_cpu(ahcd, ed->hwINFO);
-
- admhc_dbg(ahcd, "%s ed %p %s type %s; next ed %08x\n",
- label,
- ed, ed_statestring(ed->state), ed_typestring(ed->type),
- hc32_to_cpup(ahcd, &ed->hwNextED));
-
- admhc_dbg(ahcd, " info %08x MAX=%d%s%s%s%s EP=%d DEV=%d\n", tmp,
- ED_MPS_GET(tmp),
- (tmp & ED_ISO) ? " ISO" : "",
- (tmp & ED_SKIP) ? " SKIP" : "",
- (tmp & ED_SPEED_FULL) ? " FULL" : " LOW",
- (tmp & ED_INT) ? " INT" : "",
- ED_EN_GET(tmp),
- ED_FA_GET(tmp));
-
- tmp = hc32_to_cpup(ahcd, &ed->hwHeadP);
- admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s%s\n",
- tmp & TD_MASK,
- hc32_to_cpup(ahcd, &ed->hwTailP),
- (tmp & ED_C) ? data1 : data0,
- (tmp & ED_H) ? " HALT" : "",
- verbose ? " td list follows" : " (not listing)");
-
- if (verbose) {
- struct list_head *tmp;
-
- /* use ed->td_list because HC concurrently modifies
- * hwNextTD as it accumulates ed_donelist.
- */
- list_for_each(tmp, &ed->td_list) {
- struct td *td;
- td = list_entry(tmp, struct td, td_list);
- admhc_dump_td(ahcd, " ->", td);
- }
- }
-}
-
-#else /* ifdef DEBUG */
-
-static inline void urb_print(struct admhcd *ahcd, struct urb * urb, char * str,
- int small, int status) {}
-static inline void admhc_dump_ed(const struct admhcd *ahcd, const char *label,
- const struct ed *ed, int verbose) {}
-static inline void admhc_dump_td(const struct admhcd *ahcd, const char *label,
- const struct td *td) {}
-static inline void admhc_dump(struct admhcd *ahcd, int verbose) {}
-
-#undef ADMHC_VERBOSE_DEBUG
-
-#endif /* DEBUG */
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef STUB_DEBUG_FILES
-
-static inline void create_debug_files(struct admhcd *bus) { }
-static inline void remove_debug_files(struct admhcd *bus) { }
-
-#else
-
-static int debug_async_open(struct inode *, struct file *);
-static int debug_periodic_open(struct inode *, struct file *);
-static int debug_registers_open(struct inode *, struct file *);
-static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
-static int debug_close(struct inode *, struct file *);
-
-static const struct file_operations debug_async_fops = {
- .owner = THIS_MODULE,
- .open = debug_async_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-static const struct file_operations debug_periodic_fops = {
- .owner = THIS_MODULE,
- .open = debug_periodic_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-static const struct file_operations debug_registers_fops = {
- .owner = THIS_MODULE,
- .open = debug_registers_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-
-static struct dentry *admhc_debug_root;
-
-struct debug_buffer {
- ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
- struct admhcd *ahcd;
- struct mutex mutex; /* protect filling of buffer */
- size_t count; /* number of characters filled into buffer */
- char *page;
-};
-
-static ssize_t
-show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
-{
- unsigned temp;
- unsigned size = count;
-
- if (!ed)
- return 0;
-
- /* dump a snapshot of the bulk or control schedule */
- while (ed) {
- u32 info = hc32_to_cpu(ahcd, ed->hwINFO);
- u32 headp = hc32_to_cpu(ahcd, ed->hwHeadP);
- u32 tailp = hc32_to_cpu(ahcd, ed->hwTailP);
- struct list_head *entry;
- struct td *td;
-
- temp = scnprintf(buf, size,
- "ed/%p %s %s %cs dev%d ep%d %s%smax %d %08x%s%s %s"
- " h:%08x t:%08x",
- ed,
- ed_statestring(ed->state),
- ed_typestring(ed->type),
- (info & ED_SPEED_FULL) ? 'f' : 'l',
- info & ED_FA_MASK,
- (info >> ED_EN_SHIFT) & ED_EN_MASK,
- (info & ED_INT) ? "INT " : "",
- (info & ED_ISO) ? "ISO " : "",
- (info >> ED_MPS_SHIFT) & ED_MPS_MASK ,
- info,
- (info & ED_SKIP) ? " S" : "",
- (headp & ED_H) ? " H" : "",
- (headp & ED_C) ? data1 : data0,
- headp & ED_MASK, tailp);
- size -= temp;
- buf += temp;
-
- list_for_each(entry, &ed->td_list) {
- u32 dbp, cbl;
-
- td = list_entry(entry, struct td, td_list);
- info = hc32_to_cpup(ahcd, &td->hwINFO);
- dbp = hc32_to_cpup(ahcd, &td->hwDBP);
- cbl = hc32_to_cpup(ahcd, &td->hwCBL);
-
- temp = scnprintf(buf, size,
- "\n\ttd/%p %s %d %s%scc=%x urb %p (%08x,%08x)",
- td,
- td_pidstring(info),
- TD_BL_GET(cbl),
- (info & TD_OWN) ? "" : "DONE ",
- (cbl & TD_IE) ? "IE " : "",
- TD_CC_GET(info), td->urb, info, cbl);
- size -= temp;
- buf += temp;
- }
-
- temp = scnprintf(buf, size, "\n");
- size -= temp;
- buf += temp;
-
- ed = ed->ed_next;
- }
-
- return count - size;
-}
-
-static ssize_t fill_async_buffer(struct debug_buffer *buf)
-{
- struct admhcd *ahcd;
- size_t temp;
- unsigned long flags;
-
- ahcd = buf->ahcd;
-
- spin_lock_irqsave(&ahcd->lock, flags);
- temp = show_list(ahcd, buf->page, PAGE_SIZE, ahcd->ed_head);
- spin_unlock_irqrestore(&ahcd->lock, flags);
-
- return temp;
-}
-
-
-#define DBG_SCHED_LIMIT 64
-
-static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
-{
- struct admhcd *ahcd;
- struct ed **seen, *ed;
- unsigned long flags;
- unsigned temp, size, seen_count;
- char *next;
- unsigned i;
-
- seen = kmalloc(DBG_SCHED_LIMIT * sizeof(*seen), GFP_ATOMIC);
- if (!seen)
- return 0;
- seen_count = 0;
-
- ahcd = buf->ahcd;
- next = buf->page;
- size = PAGE_SIZE;
-
- temp = scnprintf(next, size, "size = %d\n", NUM_INTS);
- size -= temp;
- next += temp;
-
- /* dump a snapshot of the periodic schedule (and load) */
- spin_lock_irqsave(&ahcd->lock, flags);
- for (i = 0; i < NUM_INTS; i++) {
- ed = ahcd->periodic[i];
- if (!ed)
- continue;
-
- temp = scnprintf(next, size, "%2d [%3d]:", i, ahcd->load[i]);
- size -= temp;
- next += temp;
-
- do {
- temp = scnprintf(next, size, " ed%d/%p",
- ed->interval, ed);
- size -= temp;
- next += temp;
- for (temp = 0; temp < seen_count; temp++) {
- if (seen[temp] == ed)
- break;
- }
-
- /* show more info the first time around */
- if (temp == seen_count) {
- u32 info = hc32_to_cpu(ahcd, ed->hwINFO);
- struct list_head *entry;
- unsigned qlen = 0;
-
- /* qlen measured here in TDs, not urbs */
- list_for_each(entry, &ed->td_list)
- qlen++;
- temp = scnprintf(next, size,
- " (%cs dev%d ep%d%s qlen %u"
- " max %d %08x%s%s)",
- (info & ED_SPEED_FULL) ? 'f' : 'l',
- ED_FA_GET(info),
- ED_EN_GET(info),
- (info & ED_ISO) ? "iso" : "int",
- qlen,
- ED_MPS_GET(info),
- info,
- (info & ED_SKIP) ? " K" : "",
- (ed->hwHeadP &
- cpu_to_hc32(ahcd, ED_H)) ?
- " H" : "");
- size -= temp;
- next += temp;
-
- if (seen_count < DBG_SCHED_LIMIT)
- seen[seen_count++] = ed;
-
- ed = ed->ed_next;
-
- } else {
- /* we've seen it and what's after */
- temp = 0;
- ed = NULL;
- }
-
- } while (ed);
-
- temp = scnprintf(next, size, "\n");
- size -= temp;
- next += temp;
- }
- spin_unlock_irqrestore(&ahcd->lock, flags);
- kfree(seen);
-
- return PAGE_SIZE - size;
-}
-
-
-#undef DBG_SCHED_LIMIT
-
-static ssize_t fill_registers_buffer(struct debug_buffer *buf)
-{
- struct usb_hcd *hcd;
- struct admhcd *ahcd;
- struct admhcd_regs __iomem *regs;
- unsigned long flags;
- unsigned temp, size;
- char *next;
- u32 rdata;
-
- ahcd = buf->ahcd;
- hcd = admhc_to_hcd(ahcd);
- regs = ahcd->regs;
- next = buf->page;
- size = PAGE_SIZE;
-
- spin_lock_irqsave(&ahcd->lock, flags);
-
- /* dump driver info, then registers in spec order */
-
- admhc_dbg_sw(ahcd, &next, &size,
- "bus %s, device %s\n"
- "%s\n"
- "%s\n",
- hcd->self.controller->bus->name,
- dev_name(hcd->self.controller),
- hcd->product_desc,
- hcd_name);
-
- if (!HCD_HW_ACCESSIBLE(hcd)) {
- size -= scnprintf(next, size,
- "SUSPENDED (no register access)\n");
- goto done;
- }
-
- admhc_dump_status(ahcd, &next, &size);
-
- /* other registers mostly affect frame timings */
- rdata = admhc_readl(ahcd, &regs->fminterval);
- temp = scnprintf(next, size,
- "fmintvl 0x%08x %sFSLDP=0x%04x FI=0x%04x\n",
- rdata, (rdata & ADMHC_SFI_FIT) ? "FIT " : "",
- (rdata >> ADMHC_SFI_FSLDP_SHIFT) & ADMHC_SFI_FSLDP_MASK,
- rdata & ADMHC_SFI_FI_MASK);
- size -= temp;
- next += temp;
-
- rdata = admhc_readl(ahcd, &regs->fmnumber);
- temp = scnprintf(next, size, "fmnumber 0x%08x %sFR=0x%04x FN=%04x\n",
- rdata, (rdata & ADMHC_SFN_FRT) ? "FRT " : "",
- (rdata >> ADMHC_SFN_FR_SHIFT) & ADMHC_SFN_FR_MASK,
- rdata & ADMHC_SFN_FN_MASK);
- size -= temp;
- next += temp;
-
- /* TODO: use predefined bitmask */
- rdata = admhc_readl(ahcd, &regs->lsthresh);
- temp = scnprintf(next, size, "lsthresh 0x%04x\n",
- rdata & 0x3fff);
- size -= temp;
- next += temp;
-
- temp = scnprintf(next, size, "hub poll timer: %s\n",
- admhcd_to_hcd(ahcd)->poll_rh ? "ON" : "OFF");
- size -= temp;
- next += temp;
-
- /* roothub */
- admhc_dump_roothub(ahcd, 1, &next, &size);
-
-done:
- spin_unlock_irqrestore(&ahcd->lock, flags);
- return PAGE_SIZE - size;
-}
-
-
-static struct debug_buffer *alloc_buffer(struct admhcd *ahcd,
- ssize_t (*fill_func)(struct debug_buffer *))
-{
- struct debug_buffer *buf;
-
- buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
-
- if (buf) {
- buf->ahcd = ahcd;
- buf->fill_func = fill_func;
- mutex_init(&buf->mutex);
- }
-
- return buf;
-}
-
-static int fill_buffer(struct debug_buffer *buf)
-{
- int ret = 0;
-
- if (!buf->page)
- buf->page = (char *)get_zeroed_page(GFP_KERNEL);
-
- if (!buf->page) {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = buf->fill_func(buf);
-
- if (ret >= 0) {
- buf->count = ret;
- ret = 0;
- }
-
-out:
- return ret;
-}
-
-static ssize_t debug_output(struct file *file, char __user *user_buf,
- size_t len, loff_t *offset)
-{
- struct debug_buffer *buf = file->private_data;
- int ret = 0;
-
- mutex_lock(&buf->mutex);
- if (buf->count == 0) {
- ret = fill_buffer(buf);
- if (ret != 0) {
- mutex_unlock(&buf->mutex);
- goto out;
- }
- }
- mutex_unlock(&buf->mutex);
-
- ret = simple_read_from_buffer(user_buf, len, offset,
- buf->page, buf->count);
-
-out:
- return ret;
-}
-
-static int debug_close(struct inode *inode, struct file *file)
-{
- struct debug_buffer *buf = file->private_data;
-
- if (buf) {
- if (buf->page)
- free_page((unsigned long)buf->page);
- kfree(buf);
- }
-
- return 0;
-}
-
-static int debug_async_open(struct inode *inode, struct file *file)
-{
- file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
-
- return file->private_data ? 0 : -ENOMEM;
-}
-
-static int debug_periodic_open(struct inode *inode, struct file *file)
-{
- file->private_data = alloc_buffer(inode->i_private,
- fill_periodic_buffer);
-
- return file->private_data ? 0 : -ENOMEM;
-}
-
-static int debug_registers_open(struct inode *inode, struct file *file)
-{
- file->private_data = alloc_buffer(inode->i_private,
- fill_registers_buffer);
-
- return file->private_data ? 0 : -ENOMEM;
-}
-
-static inline void create_debug_files(struct admhcd *ahcd)
-{
- struct usb_bus *bus = &admhcd_to_hcd(ahcd)->self;
-
- ahcd->debug_dir = debugfs_create_dir(bus->bus_name, admhc_debug_root);
- if (!ahcd->debug_dir)
- goto dir_error;
-
- ahcd->debug_async = debugfs_create_file("async", S_IRUGO,
- ahcd->debug_dir, ahcd,
- &debug_async_fops);
- if (!ahcd->debug_async)
- goto async_error;
-
- ahcd->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
- ahcd->debug_dir, ahcd,
- &debug_periodic_fops);
- if (!ahcd->debug_periodic)
- goto periodic_error;
-
- ahcd->debug_registers = debugfs_create_file("registers", S_IRUGO,
- ahcd->debug_dir, ahcd,
- &debug_registers_fops);
- if (!ahcd->debug_registers)
- goto registers_error;
-
- admhc_dbg(ahcd, "created debug files\n");
- return;
-
-registers_error:
- debugfs_remove(ahcd->debug_periodic);
-periodic_error:
- debugfs_remove(ahcd->debug_async);
-async_error:
- debugfs_remove(ahcd->debug_dir);
-dir_error:
- ahcd->debug_periodic = NULL;
- ahcd->debug_async = NULL;
- ahcd->debug_dir = NULL;
-}
-
-static inline void remove_debug_files(struct admhcd *ahcd)
-{
- debugfs_remove(ahcd->debug_registers);
- debugfs_remove(ahcd->debug_periodic);
- debugfs_remove(ahcd->debug_async);
- debugfs_remove(ahcd->debug_dir);
-}
-
-#endif
-
-/*-------------------------------------------------------------------------*/