diff options
Diffstat (limited to 'target/linux/adm5120/files/drivers/usb/host/adm5120-dbg.c')
| -rw-r--r-- | target/linux/adm5120/files/drivers/usb/host/adm5120-dbg.c | 676 |
1 files changed, 676 insertions, 0 deletions
diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-dbg.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-dbg.c new file mode 100644 index 0000000000..817d975487 --- /dev/null +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-dbg.c @@ -0,0 +1,676 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> + * + * This file is licenced under the GPL. + */ + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG + +#define edstring(ed_type) ({ char *temp; \ + switch (ed_type) { \ + case PIPE_CONTROL: temp = "ctrl"; break; \ + case PIPE_BULK: temp = "bulk"; break; \ + case PIPE_INTERRUPT: temp = "intr"; break; \ + default: temp = "isoc"; break; \ + }; temp;}) +#define pipestring(pipe) edstring(usb_pipetype(pipe)) + +/* debug| print the main components of an URB + * small: 0) header + data packets 1) just header + */ +static void __attribute__((unused)) +urb_print(struct urb * urb, char * str, int small) +{ + unsigned int pipe= urb->pipe; + + if (!urb->dev || !urb->dev->bus) { + dbg("%s URB: no dev", str); + return; + } + +#ifndef ADMHC_VERBOSE_DEBUG + if (urb->status != 0) +#endif + dbg("%s %p dev=%d ep=%d%s-%s flags=%x len=%d/%d stat=%d", + 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, + urb->status); + +#ifdef ADMHC_VERBOSE_DEBUG + if (!small) { + int i, len; + + if (usb_pipecontrol(pipe)) { + printk(KERN_DEBUG __FILE__ ": setup(8):"); + for (i = 0; i < 8 ; i++) + printk (" %02x", ((__u8 *) urb->setup_packet) [i]); + printk ("\n"); + } + if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) { + printk(KERN_DEBUG __FILE__ ": 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 (" %02x", ((__u8 *) urb->transfer_buffer) [i]); + printk ("%s stat:%d\n", i < len? "...": "", urb->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\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_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 "(bad 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, ®s->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, ®s->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, ®s->int_status), + next, size); + admhc_dump_intr_mask(ahcd, "int_enable", + admhc_readl(ahcd, ®s->int_enable), + next, size); + + maybe_print_eds(ahcd, "hosthead", + admhc_readl(ahcd, ®s->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_get_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_get_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 = hc32_to_cpup(ahcd, &td->hwINFO); + + 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)); + + if ((td->flags & TD_FLAG_ISO) == 0) { + const char *toggle, *pid; + + switch (tmp & TD_T) { + case TD_T_DATA0: toggle = data0; break; + case TD_T_DATA1: toggle = data1; break; + case TD_T_CARRY: toggle = "CARRY"; break; + default: toggle = "(bad toggle)"; break; + } + switch (tmp & TD_DP) { + case TD_DP_SETUP: pid = "SETUP"; break; + case TD_DP_IN: pid = "IN"; break; + case TD_DP_OUT: pid = "OUT"; break; + default: pid = "(bad pid)"; break; + } + 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), + toggle, + pid, + TD_ISI_GET(tmp), + TD_FN_GET(tmp)); + } else { +#if 0 /* TODO: remove */ + unsigned i; + admhc_dbg(ahcd, " info %08x CC=%x FC=%d DI=%d SF=%04x\n", tmp, + TD_CC_GET(tmp), + (tmp >> 24) & 0x07, + (tmp & TD_DI) >> 21, + tmp & 0x0000ffff); + admhc_dbg(ahcd, " bp0 %08x be %08x\n", + hc32_to_cpup (ahcd, &td->hwCBP) & ~0x0fff, + hc32_to_cpup (ahcd, &td->hwBE)); +#endif + } + + 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 state 0x%x type %s; next ed %08x\n", + label, + ed, ed->state, edstring (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 urb * urb, char * str, int small) {} +static inline void admhc_dump_ed(const struct admhcd *ahcd, const char *label, + const struct ed *ed, int verbose) {} +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 ssize_t +show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed) +{ + unsigned temp, size = count; + + if (!ed) + return 0; + +#if 0 + /* print first --> last */ + while (ed->ed_prev) + ed = ed->ed_prev; +#endif + + /* 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); + struct list_head *entry; + struct td *td; + + temp = scnprintf(buf, size, + "ed/%p %s %cs dev%d ep%d %s%smax %d %08x%s%s %s", + ed, + edstring (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); + 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, + ({ char *pid; + switch (info & TD_DP) { + case TD_DP_SETUP: pid = "setup"; break; + case TD_DP_IN: pid = "in"; break; + case TD_DP_OUT: pid = "out"; break; + default: pid = "(bad pid)"; break; + } pid;}), + 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 +show_async(struct class_device *class_dev, char *buf) +{ + struct usb_bus *bus; + struct usb_hcd *hcd; + struct admhcd *ahcd; + size_t temp; + unsigned long flags; + + bus = class_get_devdata(class_dev); + hcd = bus_to_hcd(bus); + ahcd = hcd_to_admhcd(hcd); + + /* display control and bulk lists together, for simplicity */ + spin_lock_irqsave(&ahcd->lock, flags); +#if 0 + temp = show_list (ahcd, buf, PAGE_SIZE, ahcd->ed_tails[ED_TAIL_CONTROL]); + temp += show_list (ahcd, buf + temp, PAGE_SIZE - temp, + ahcd->ed_tails[ED_TAIL_BULK]); +#else +#ifdef ED_TAIL_ARRAY + temp = show_list(ahcd, buf, PAGE_SIZE, ahcd->ed_head); +#else + temp = show_list(ahcd, buf, PAGE_SIZE, ahcd->ed_head); +#endif +#endif + spin_unlock_irqrestore(&ahcd->lock, flags); + + return temp; +} +static CLASS_DEVICE_ATTR(async, S_IRUGO, show_async, NULL); + + +#define DBG_SCHED_LIMIT 64 + +static ssize_t +show_periodic(struct class_device *class_dev, char *buf) +{ + struct usb_bus *bus; + struct usb_hcd *hcd; + struct admhcd *ahcd; + struct ed **seen, *ed; + unsigned long flags; + unsigned temp, size, seen_count; + char *next; + unsigned i; + + if (!(seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC))) + return 0; + seen_count = 0; + + bus = class_get_devdata(class_dev); + hcd = bus_to_hcd(bus); + ahcd = hcd_to_admhcd(hcd); + next = buf; + 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++) { + if (!(ed = ahcd->periodic [i])) + 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; +} +static CLASS_DEVICE_ATTR(periodic, S_IRUGO, show_periodic, NULL); + + +#undef DBG_SCHED_LIMIT + +static ssize_t +show_registers(struct class_device *class_dev, char *buf) +{ + struct usb_bus *bus; + struct usb_hcd *hcd; + struct admhcd *ahcd; + struct admhcd_regs __iomem *regs; + unsigned long flags; + unsigned temp, size; + char *next; + u32 rdata; + + bus = class_get_devdata(class_dev); + hcd = bus_to_hcd(bus); + ahcd = hcd_to_admhcd(hcd); + regs = ahcd->regs; + next = buf; + 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 version " DRIVER_VERSION "\n", + hcd->self.controller->bus->name, + hcd->self.controller->bus_id, + hcd->product_desc, + hcd_name); + + if (bus->controller->power.power_state.event) { + 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, ®s->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, ®s->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, ®s->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 CLASS_DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL); + + +static inline void create_debug_files (struct admhcd *ahcd) +{ + struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev; + int retval; + + retval = class_device_create_file(cldev, &class_device_attr_async); + retval = class_device_create_file(cldev, &class_device_attr_periodic); + retval = class_device_create_file(cldev, &class_device_attr_registers); + admhc_dbg(ahcd, "created debug files\n"); +} + +static inline void remove_debug_files (struct admhcd *ahcd) +{ + struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev; + + class_device_remove_file(cldev, &class_device_attr_async); + class_device_remove_file(cldev, &class_device_attr_periodic); + class_device_remove_file(cldev, &class_device_attr_registers); +} + +#endif + +/*-------------------------------------------------------------------------*/ + |