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Commit 0a8d2a86 authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://linuxusb.bkbits.net/linus-2.5 

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
parents 8f706ce4 ab7e3d48
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MAINTAINERS
View file @ 0a8d2a86
...@@ -1722,12 +1722,12 @@ L: linux-usb-devel@lists.sourceforge.net ...@@ -1722,12 +1722,12 @@ L: linux-usb-devel@lists.sourceforge.net
S: Maintained S: Maintained
USB SERIAL KEYSPAN DRIVER USB SERIAL KEYSPAN DRIVER
P: Hugh Blemings P: Greg Kroah-Hartman
M: hugh@misc.nu M: greg@kroah.com
L: linux-usb-users@lists.sourceforge.net L: linux-usb-users@lists.sourceforge.net
L: linux-usb-devel@lists.sourceforge.net L: linux-usb-devel@lists.sourceforge.net
W: http://www.kroah.com/linux/
S: Maintained S: Maintained
W: http://misc.nu/hugh/keyspan/
USB SUBSYSTEM USB SUBSYSTEM
P: Greg Kroah-Hartman P: Greg Kroah-Hartman
......
drivers/usb/Config.in
View file @ 0a8d2a86
...@@ -8,7 +8,7 @@ dep_tristate 'Support for USB' CONFIG_USB $CONFIG_PCI ...@@ -8,7 +8,7 @@ dep_tristate 'Support for USB' CONFIG_USB $CONFIG_PCI
if [ "$CONFIG_USB" = "y" -o "$CONFIG_USB" = "m" ]; then if [ "$CONFIG_USB" = "y" -o "$CONFIG_USB" = "m" ]; then
bool ' USB verbose debug messages' CONFIG_USB_DEBUG bool ' USB verbose debug messages' CONFIG_USB_DEBUG
comment 'Miscellaneous USB options' comment 'Miscellaneous USB options'
bool ' USB device filesystem' CONFIG_USB_DEVICEFS bool ' USB device filesystem' CONFIG_USB_DEVICEFS
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
bool ' Enforce USB bandwidth allocation (EXPERIMENTAL)' CONFIG_USB_BANDWIDTH bool ' Enforce USB bandwidth allocation (EXPERIMENTAL)' CONFIG_USB_BANDWIDTH
...@@ -16,90 +16,90 @@ comment 'Miscellaneous USB options' ...@@ -16,90 +16,90 @@ comment 'Miscellaneous USB options'
define_bool CONFIG_USB_BANDWIDTH n define_bool CONFIG_USB_BANDWIDTH n
fi fi
bool ' Long timeout for slow-responding devices (some MGE Ellipse UPSes)' CONFIG_USB_LONG_TIMEOUT bool ' Long timeout for slow-responding devices (some MGE Ellipse UPSes)' CONFIG_USB_LONG_TIMEOUT
fi
comment 'USB Host Controller Drivers' comment 'USB Host Controller Drivers'
source drivers/usb/hcd/Config.in source drivers/usb/hcd/Config.in
if [ "$CONFIG_USB_UHCI_ALT" != "y" ]; then if [ "$CONFIG_USB_UHCI_ALT" != "y" ]; then
dep_tristate ' UHCI (Intel PIIX4, VIA, ...) support' CONFIG_USB_UHCI $CONFIG_USB dep_tristate ' UHCI (Intel PIIX4, VIA, ...) support' CONFIG_USB_UHCI $CONFIG_USB
fi fi
if [ "$CONFIG_USB_UHCI" != "y" ]; then if [ "$CONFIG_USB_UHCI" != "y" ]; then
dep_tristate ' UHCI Alternate Driver (JE) support' CONFIG_USB_UHCI_ALT $CONFIG_USB dep_tristate ' UHCI Alternate Driver (JE) support' CONFIG_USB_UHCI_ALT $CONFIG_USB
else else
define_bool CONFIG_USB_UHCI_ALT n define_bool CONFIG_USB_UHCI_ALT n
fi fi
dep_tristate ' OHCI (Compaq, iMacs, OPTi, SiS, ALi, ...) support' CONFIG_USB_OHCI $CONFIG_USB dep_tristate ' OHCI (Compaq, iMacs, OPTi, SiS, ALi, ...) support' CONFIG_USB_OHCI $CONFIG_USB
comment 'USB Device Class drivers' comment 'USB Device Class drivers'
dep_tristate ' USB Audio support' CONFIG_USB_AUDIO $CONFIG_USB $CONFIG_SOUND dep_tristate ' USB Audio support' CONFIG_USB_AUDIO $CONFIG_USB $CONFIG_SOUND
dep_tristate ' USB Bluetooth support (EXPERIMENTAL)' CONFIG_USB_BLUETOOTH $CONFIG_USB $CONFIG_EXPERIMENTAL dep_tristate ' USB Bluetooth support (EXPERIMENTAL)' CONFIG_USB_BLUETOOTH $CONFIG_USB $CONFIG_EXPERIMENTAL
if [ "$CONFIG_SCSI" = "n" ]; then if [ "$CONFIG_SCSI" = "n" ]; then
comment ' SCSI support is needed for USB Storage' comment ' SCSI support is needed for USB Storage'
fi fi
dep_tristate ' USB Mass Storage support' CONFIG_USB_STORAGE $CONFIG_USB $CONFIG_SCSI dep_tristate ' USB Mass Storage support' CONFIG_USB_STORAGE $CONFIG_USB $CONFIG_SCSI
dep_mbool ' USB Mass Storage verbose debug' CONFIG_USB_STORAGE_DEBUG $CONFIG_USB_STORAGE dep_mbool ' USB Mass Storage verbose debug' CONFIG_USB_STORAGE_DEBUG $CONFIG_USB_STORAGE
dep_mbool ' Datafab MDCFE-B Compact Flash Reader support' CONFIG_USB_STORAGE_DATAFAB $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL dep_mbool ' Datafab MDCFE-B Compact Flash Reader support' CONFIG_USB_STORAGE_DATAFAB $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL
dep_mbool ' Freecom USB/ATAPI Bridge support' CONFIG_USB_STORAGE_FREECOM $CONFIG_USB_STORAGE dep_mbool ' Freecom USB/ATAPI Bridge support' CONFIG_USB_STORAGE_FREECOM $CONFIG_USB_STORAGE
dep_mbool ' ISD-200 USB/ATA Bridge support' CONFIG_USB_STORAGE_ISD200 $CONFIG_USB_STORAGE dep_mbool ' ISD-200 USB/ATA Bridge support' CONFIG_USB_STORAGE_ISD200 $CONFIG_USB_STORAGE
dep_mbool ' Microtech CompactFlash/SmartMedia support' CONFIG_USB_STORAGE_DPCM $CONFIG_USB_STORAGE dep_mbool ' Microtech CompactFlash/SmartMedia support' CONFIG_USB_STORAGE_DPCM $CONFIG_USB_STORAGE
dep_mbool ' HP CD-Writer 82xx support' CONFIG_USB_STORAGE_HP8200e $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL dep_mbool ' HP CD-Writer 82xx support' CONFIG_USB_STORAGE_HP8200e $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL
dep_mbool ' SanDisk SDDR-09 (and other SmartMedia) support' CONFIG_USB_STORAGE_SDDR09 $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL dep_mbool ' SanDisk SDDR-09 (and other SmartMedia) support' CONFIG_USB_STORAGE_SDDR09 $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL
dep_mbool ' Lexar Jumpshot Compact Flash Reader' CONFIG_USB_STORAGE_JUMPSHOT $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL dep_mbool ' Lexar Jumpshot Compact Flash Reader' CONFIG_USB_STORAGE_JUMPSHOT $CONFIG_USB_STORAGE $CONFIG_EXPERIMENTAL
dep_tristate ' USB Modem (CDC ACM) support' CONFIG_USB_ACM $CONFIG_USB dep_tristate ' USB Modem (CDC ACM) support' CONFIG_USB_ACM $CONFIG_USB
dep_tristate ' USB Printer support' CONFIG_USB_PRINTER $CONFIG_USB dep_tristate ' USB Printer support' CONFIG_USB_PRINTER $CONFIG_USB
comment 'USB Human Interface Devices (HID)' comment 'USB Human Interface Devices (HID)'
if [ "$CONFIG_INPUT" = "n" ]; then if [ "$CONFIG_INPUT" = "n" ]; then
comment ' Input core support is needed for USB HID' comment ' Input core support is needed for USB HID'
else else
dep_tristate ' USB Human Interface Device (full HID) support' CONFIG_USB_HID $CONFIG_USB $CONFIG_INPUT dep_tristate ' USB Human Interface Device (full HID) support' CONFIG_USB_HID $CONFIG_USB $CONFIG_INPUT
dep_mbool ' /dev/hiddev raw HID device support (EXPERIMENTAL)' CONFIG_USB_HIDDEV $CONFIG_USB_HID dep_mbool ' /dev/hiddev raw HID device support (EXPERIMENTAL)' CONFIG_USB_HIDDEV $CONFIG_USB_HID
if [ "$CONFIG_USB_HID" != "y" ]; then if [ "$CONFIG_USB_HID" != "y" ]; then
dep_tristate ' USB HIDBP Keyboard (basic) support' CONFIG_USB_KBD $CONFIG_USB $CONFIG_INPUT dep_tristate ' USB HIDBP Keyboard (basic) support' CONFIG_USB_KBD $CONFIG_USB $CONFIG_INPUT
dep_tristate ' USB HIDBP Mouse (basic) support' CONFIG_USB_MOUSE $CONFIG_USB $CONFIG_INPUT dep_tristate ' USB HIDBP Mouse (basic) support' CONFIG_USB_MOUSE $CONFIG_USB $CONFIG_INPUT
fi
dep_tristate ' Wacom Intuos/Graphire tablet support' CONFIG_USB_WACOM $CONFIG_USB $CONFIG_INPUT
fi fi
dep_tristate ' Wacom Intuos/Graphire tablet support' CONFIG_USB_WACOM $CONFIG_USB $CONFIG_INPUT
fi
comment 'USB Imaging devices' comment 'USB Imaging devices'
dep_tristate ' USB Kodak DC-2xx Camera support' CONFIG_USB_DC2XX $CONFIG_USB dep_tristate ' USB Kodak DC-2xx Camera support' CONFIG_USB_DC2XX $CONFIG_USB
dep_tristate ' USB Mustek MDC800 Digital Camera support (EXPERIMENTAL)' CONFIG_USB_MDC800 $CONFIG_USB $CONFIG_EXPERIMENTAL dep_tristate ' USB Mustek MDC800 Digital Camera support (EXPERIMENTAL)' CONFIG_USB_MDC800 $CONFIG_USB $CONFIG_EXPERIMENTAL
dep_tristate ' USB Scanner support' CONFIG_USB_SCANNER $CONFIG_USB dep_tristate ' USB Scanner support' CONFIG_USB_SCANNER $CONFIG_USB
dep_tristate ' Microtek X6USB scanner support' CONFIG_USB_MICROTEK $CONFIG_USB $CONFIG_SCSI dep_tristate ' Microtek X6USB scanner support' CONFIG_USB_MICROTEK $CONFIG_USB $CONFIG_SCSI
dep_tristate ' HP53xx USB scanner support (EXPERIMENTAL)' CONFIG_USB_HPUSBSCSI $CONFIG_USB $CONFIG_SCSI $CONFIG_EXPERIMENTAL dep_tristate ' HP53xx USB scanner support (EXPERIMENTAL)' CONFIG_USB_HPUSBSCSI $CONFIG_USB $CONFIG_SCSI $CONFIG_EXPERIMENTAL
comment 'USB Multimedia devices' comment 'USB Multimedia devices'
if [ "$CONFIG_VIDEO_DEV" = "n" ]; then if [ "$CONFIG_VIDEO_DEV" = "n" ]; then
comment ' Video4Linux support is needed for USB Multimedia device support' comment ' Video4Linux support is needed for USB Multimedia device support'
else else
dep_tristate ' USB IBM (Xirlink) C-it Camera support' CONFIG_USB_IBMCAM $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB IBM (Xirlink) C-it Camera support' CONFIG_USB_IBMCAM $CONFIG_USB $CONFIG_VIDEO_DEV
dep_tristate ' USB OV511 Camera support' CONFIG_USB_OV511 $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB OV511 Camera support' CONFIG_USB_OV511 $CONFIG_USB $CONFIG_VIDEO_DEV
dep_tristate ' USB Philips Cameras' CONFIG_USB_PWC $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB Philips Cameras' CONFIG_USB_PWC $CONFIG_USB $CONFIG_VIDEO_DEV
dep_tristate ' USB SE401 Camera support' CONFIG_USB_SE401 $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB SE401 Camera support' CONFIG_USB_SE401 $CONFIG_USB $CONFIG_VIDEO_DEV
dep_tristate ' USB STV680 (Pencam) Camera support' CONFIG_USB_STV680 $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB STV680 (Pencam) Camera support' CONFIG_USB_STV680 $CONFIG_USB $CONFIG_VIDEO_DEV
dep_tristate ' USB 3com HomeConnect (aka vicam) support (EXPERIMENTAL)' CONFIG_USB_VICAM $CONFIG_USB $CONFIG_VIDEO_DEV $CONFIG_EXPERIMENTAL dep_tristate ' USB 3com HomeConnect (aka vicam) support (EXPERIMENTAL)' CONFIG_USB_VICAM $CONFIG_USB $CONFIG_VIDEO_DEV $CONFIG_EXPERIMENTAL
dep_tristate ' D-Link USB FM radio support (EXPERIMENTAL)' CONFIG_USB_DSBR $CONFIG_USB $CONFIG_VIDEO_DEV $CONFIG_EXPERIMENTAL dep_tristate ' D-Link USB FM radio support (EXPERIMENTAL)' CONFIG_USB_DSBR $CONFIG_USB $CONFIG_VIDEO_DEV $CONFIG_EXPERIMENTAL
dep_tristate ' DABUSB driver' CONFIG_USB_DABUSB $CONFIG_USB dep_tristate ' DABUSB driver' CONFIG_USB_DABUSB $CONFIG_USB
dep_tristate ' USB Konica Webcam support' CONFIG_USB_KONICAWC $CONFIG_USB $CONFIG_VIDEO_DEV dep_tristate ' USB Konica Webcam support' CONFIG_USB_KONICAWC $CONFIG_USB $CONFIG_VIDEO_DEV
fi fi
comment 'USB Network adaptors' comment 'USB Network adaptors'
if [ "$CONFIG_NET" = "n" ]; then if [ "$CONFIG_NET" = "n" ]; then
comment ' Networking support is needed for USB Networking device support' comment ' Networking support is needed for USB Networking device support'
else else
dep_tristate ' USB ADMtek Pegasus-based ethernet device support (EXPERIMENTAL)' CONFIG_USB_PEGASUS $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL dep_tristate ' USB ADMtek Pegasus-based ethernet device support (EXPERIMENTAL)' CONFIG_USB_PEGASUS $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL
dep_tristate ' USB KLSI KL5USB101-based ethernet device support (EXPERIMENTAL)' CONFIG_USB_KAWETH $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL dep_tristate ' USB KLSI KL5USB101-based ethernet device support (EXPERIMENTAL)' CONFIG_USB_KAWETH $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL
dep_tristate ' USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)' CONFIG_USB_CATC $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL dep_tristate ' USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)' CONFIG_USB_CATC $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL
dep_tristate ' USB Communication Class Ethernet device support (EXPERIMENTAL)' CONFIG_USB_CDCETHER $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL dep_tristate ' USB Communication Class Ethernet device support (EXPERIMENTAL)' CONFIG_USB_CDCETHER $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL
dep_tristate ' USB-to-USB Networking cable device support (EXPERIMENTAL)' CONFIG_USB_USBNET $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL dep_tristate ' USB-to-USB Networking cable device support (EXPERIMENTAL)' CONFIG_USB_USBNET $CONFIG_USB $CONFIG_NET $CONFIG_EXPERIMENTAL
fi fi
comment 'USB port drivers' comment 'USB port drivers'
dep_tristate ' USS720 parport driver' CONFIG_USB_USS720 $CONFIG_USB $CONFIG_PARPORT dep_tristate ' USS720 parport driver' CONFIG_USB_USS720 $CONFIG_USB $CONFIG_PARPORT
source drivers/usb/serial/Config.in source drivers/usb/serial/Config.in
comment 'USB Miscellaneous drivers' comment 'USB Miscellaneous drivers'
dep_tristate ' USB Diamond Rio500 support (EXPERIMENTAL)' CONFIG_USB_RIO500 $CONFIG_USB $CONFIG_EXPERIMENTAL dep_tristate ' USB Diamond Rio500 support (EXPERIMENTAL)' CONFIG_USB_RIO500 $CONFIG_USB $CONFIG_EXPERIMENTAL
dep_tristate ' USB Auerswald ISDN support (EXPERIMENTAL)' CONFIG_USB_AUERSWALD $CONFIG_USB $CONFIG_EXPERIMENTAL dep_tristate ' USB Auerswald ISDN support (EXPERIMENTAL)' CONFIG_USB_AUERSWALD $CONFIG_USB $CONFIG_EXPERIMENTAL
fi
endmenu endmenu
drivers/usb/hcd.c
View file @ 0a8d2a86
...@@ -224,12 +224,12 @@ static const u8 rh_config_descriptor [] = { ...@@ -224,12 +224,12 @@ static const u8 rh_config_descriptor [] = {
* helper routine for returning string descriptors in UTF-16LE * helper routine for returning string descriptors in UTF-16LE
* input can actually be ISO-8859-1; ASCII is its 7-bit subset * input can actually be ISO-8859-1; ASCII is its 7-bit subset
*/ */
static int ascii2utf (char *ascii, u8 *utf, int utfmax) static int ascii2utf (char *s, u8 *utf, int utfmax)
{ {
int retval; int retval;
for (retval = 0; *ascii && utfmax > 1; utfmax -= 2, retval += 2) { for (retval = 0; *s && utfmax > 1; utfmax -= 2, retval += 2) {
*utf++ = *ascii++ & 0x7f; *utf++ = *s++;
*utf++ = 0; *utf++ = 0;
} }
return retval; return retval;
...@@ -248,8 +248,7 @@ static int ascii2utf (char *ascii, u8 *utf, int utfmax) ...@@ -248,8 +248,7 @@ static int ascii2utf (char *ascii, u8 *utf, int utfmax)
*/ */
static int rh_string ( static int rh_string (
int id, int id,
struct pci_dev *pci_desc, struct usb_hcd *hcd,
char *type,
u8 *data, u8 *data,
int len int len
) { ) {
...@@ -263,15 +262,16 @@ static int rh_string ( ...@@ -263,15 +262,16 @@ static int rh_string (
// serial number // serial number
} else if (id == 1) { } else if (id == 1) {
strcpy (buf, pci_desc->slot_name); strcpy (buf, hcd->bus_name);
// product description // product description
} else if (id == 2) { } else if (id == 2) {
strcpy (buf, pci_desc->name); strcpy (buf, hcd->product_desc);
// id 3 == vendor description // id 3 == vendor description
} else if (id == 3) { } else if (id == 3) {
sprintf (buf, "%s %s %s", UTS_SYSNAME, UTS_RELEASE, type); sprintf (buf, "%s %s %s", UTS_SYSNAME, UTS_RELEASE,
hcd->description);
// unsupported IDs --> "protocol stall" // unsupported IDs --> "protocol stall"
} else } else
...@@ -338,9 +338,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) ...@@ -338,9 +338,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
break; break;
case USB_DT_STRING << 8: case USB_DT_STRING << 8:
urb->actual_length = rh_string ( urb->actual_length = rh_string (
wValue & 0xff, wValue & 0xff, hcd,
hcd->pdev,
(char *) hcd->description,
ubuf, wLength); ubuf, wLength);
break; break;
default: default:
...@@ -1004,6 +1002,7 @@ int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id) ...@@ -1004,6 +1002,7 @@ int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id)
hcd->self.hcpriv = (void *) hcd; hcd->self.hcpriv = (void *) hcd;
hcd->bus = &hcd->self; hcd->bus = &hcd->self;
hcd->bus_name = dev->slot_name; hcd->bus_name = dev->slot_name;
hcd->product_desc = dev->name;
INIT_LIST_HEAD (&hcd->dev_list); INIT_LIST_HEAD (&hcd->dev_list);
...@@ -1266,7 +1265,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags) ...@@ -1266,7 +1265,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
struct usb_hcd *hcd; struct usb_hcd *hcd;
struct hcd_dev *dev; struct hcd_dev *dev;
unsigned long flags; unsigned long flags;
int pipe; int pipe, temp;
if (!urb || urb->hcpriv || !urb->complete) if (!urb || urb->hcpriv || !urb->complete)
return -EINVAL; return -EINVAL;
...@@ -1286,6 +1285,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags) ...@@ -1286,6 +1285,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
if (hcd->state == USB_STATE_QUIESCING || !HCD_IS_RUNNING (hcd->state)) if (hcd->state == USB_STATE_QUIESCING || !HCD_IS_RUNNING (hcd->state))
return -ESHUTDOWN; return -ESHUTDOWN;
pipe = urb->pipe; pipe = urb->pipe;
temp = usb_pipetype (urb->pipe);
if (usb_endpoint_halted (urb->dev, usb_pipeendpoint (pipe), if (usb_endpoint_halted (urb->dev, usb_pipeendpoint (pipe),
usb_pipeout (pipe))) usb_pipeout (pipe)))
return -EPIPE; return -EPIPE;
...@@ -1298,7 +1298,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags) ...@@ -1298,7 +1298,7 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
/* enforce simple/standard policy */ /* enforce simple/standard policy */
allowed = USB_ASYNC_UNLINK; // affects later unlinks allowed = USB_ASYNC_UNLINK; // affects later unlinks
allowed |= USB_NO_FSBR; // only affects UHCI allowed |= USB_NO_FSBR; // only affects UHCI
switch (usb_pipetype (pipe)) { switch (temp) {
case PIPE_CONTROL: case PIPE_CONTROL:
allowed |= USB_DISABLE_SPD; allowed |= USB_DISABLE_SPD;
break; break;
...@@ -1317,15 +1317,55 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags) ...@@ -1317,15 +1317,55 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
/* warn if submitter gave bogus flags */ /* warn if submitter gave bogus flags */
if (urb->transfer_flags != orig_flags) if (urb->transfer_flags != orig_flags)
warn ("BOGUS urb flags, %x --> %x", err ("BOGUS urb flags, %x --> %x",
orig_flags, urb->transfer_flags); orig_flags, urb->transfer_flags);
} }
#endif #endif
/* /*
* FIXME: alloc periodic bandwidth here, for interrupt and iso? * Force periodic transfer intervals to be legal values that are
* Need to look at the ring submit mechanism for iso tds ... they * a power of two (so HCDs don't need to).
* aren't actually "periodic" in 2.4 kernels.
* *
* FIXME want bus->{intr,iso}_sched_horizon values here. Each HC
* supports different values... this uses EHCI/UHCI defaults (and
* EHCI can use smaller non-default values).
*/
switch (temp) {
case PIPE_ISOCHRONOUS:
case PIPE_INTERRUPT:
/* too small? */
if (urb->interval <= 0)
return -EINVAL;
/* too big? */
switch (urb->dev->speed) {
case USB_SPEED_HIGH: /* units are microframes */
// NOTE usb handles 2^15
if (urb->interval > (1024 * 8))
urb->interval = 1024 * 8;
temp = 1024 * 8;
break;
case USB_SPEED_FULL: /* units are frames/msec */
case USB_SPEED_LOW:
if (temp == PIPE_INTERRUPT) {
if (urb->interval > 255)
return -EINVAL;
// NOTE ohci only handles up to 32
temp = 128;
} else {
if (urb->interval > 1024)
urb->interval = 1024;
// NOTE usb and ohci handle up to 2^15
temp = 1024;
}
default:
return -EINVAL;
}
/* power of two? */
while (temp > urb->interval)
temp >>= 1;
urb->interval = temp;
}
/*
* FIXME: make urb timeouts be generic, keeping the HCD cores * FIXME: make urb timeouts be generic, keeping the HCD cores
* as simple as possible. * as simple as possible.
*/ */
...@@ -1589,6 +1629,9 @@ static void hcd_irq (int irq, void *__hcd, struct pt_regs * r) ...@@ -1589,6 +1629,9 @@ static void hcd_irq (int irq, void *__hcd, struct pt_regs * r)
struct usb_hcd *hcd = __hcd; struct usb_hcd *hcd = __hcd;
int start = hcd->state; int start = hcd->state;
if (unlikely (hcd->state == USB_STATE_HALT)) /* irq sharing? */
return;
hcd->driver->irq (hcd); hcd->driver->irq (hcd);
if (hcd->state != start && hcd->state == USB_STATE_HALT) if (hcd->state != start && hcd->state == USB_STATE_HALT)
hc_died (hcd); hc_died (hcd);
...@@ -1642,7 +1685,8 @@ void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb) ...@@ -1642,7 +1685,8 @@ void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb)
// hcd_monitor_hook(MONITOR_URB_UPDATE, urb, dev) // hcd_monitor_hook(MONITOR_URB_UPDATE, urb, dev)
if (urb->status) if (urb->status)
dbg ("giveback urb %p status %d", urb, urb->status); dbg ("giveback urb %p status %d len %d",
urb, urb->status, urb->actual_length);
/* if no error, make sure urb->next progresses */ /* if no error, make sure urb->next progresses */
else if (urb->next) { else if (urb->next) {
......
drivers/usb/hcd.h
View file @ 0a8d2a86
...@@ -39,7 +39,7 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */ ...@@ -39,7 +39,7 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */
struct usb_bus self; /* hcd is-a bus */ struct usb_bus self; /* hcd is-a bus */
const char *bus_name; const char *bus_name;
const char *product_desc; /* product/vendor string */
const char *description; /* "ehci-hcd" etc */ const char *description; /* "ehci-hcd" etc */
struct timer_list rh_timer; /* drives root hub */ struct timer_list rh_timer; /* drives root hub */
......
drivers/usb/hcd/ehci-hcd.c
View file @ 0a8d2a86
/* /*
* Copyright (c) 2000-2001 by David Brownell * Copyright (c) 2000-2002 by David Brownell
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
...@@ -31,10 +31,6 @@ ...@@ -31,10 +31,6 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#ifndef CONFIG_USB_DEBUG
#define CONFIG_USB_DEBUG /* this is still experimental! */
#endif
#ifdef CONFIG_USB_DEBUG #ifdef CONFIG_USB_DEBUG
#define DEBUG #define DEBUG
#else #else
...@@ -73,19 +69,25 @@ ...@@ -73,19 +69,25 @@
* ... * ...
* *
* HISTORY: * HISTORY:
*
* 2002-03-05 Initial high-speed ISO support; reduce ITD memory; shift
* more checking to generic hcd framework (db). Make it work with
* Philips EHCI; reduce PCI traffic; shorten IRQ path (Rory Bolt).
* 2002-01-14 Minor cleanup; version synch. * 2002-01-14 Minor cleanup; version synch.
* 2002-01-08 Fix roothub handoff of FS/LS to companion controllers. * 2002-01-08 Fix roothub handoff of FS/LS to companion controllers.
* 2002-01-04 Control/Bulk queuing behaves. * 2002-01-04 Control/Bulk queuing behaves.
*
* 2001-12-12 Initial patch version for Linux 2.5.1 kernel. * 2001-12-12 Initial patch version for Linux 2.5.1 kernel.
* 2001-June Works with usb-storage and NEC EHCI on 2.4
*/ */
#define DRIVER_VERSION "$Revision: 0.26 $" #define DRIVER_VERSION "$Revision: 0.27 $"
#define DRIVER_AUTHOR "David Brownell" #define DRIVER_AUTHOR "David Brownell"
#define DRIVER_DESC "USB 2.0 'Enhanced' Host Controller (EHCI) Driver" #define DRIVER_DESC "USB 2.0 'Enhanced' Host Controller (EHCI) Driver"
// #define EHCI_VERBOSE_DEBUG // #define EHCI_VERBOSE_DEBUG
// #define have_iso // #define have_split_iso
#ifdef CONFIG_DEBUG_SLAB #ifdef CONFIG_DEBUG_SLAB
# define EHCI_SLAB_FLAGS (SLAB_POISON) # define EHCI_SLAB_FLAGS (SLAB_POISON)
...@@ -187,6 +189,9 @@ static int ehci_start (struct usb_hcd *hcd) ...@@ -187,6 +189,9 @@ static int ehci_start (struct usb_hcd *hcd)
dbg_hcs_params (ehci, "ehci_start"); dbg_hcs_params (ehci, "ehci_start");
dbg_hcc_params (ehci, "ehci_start"); dbg_hcc_params (ehci, "ehci_start");
/* cache this readonly data; minimize PCI reads */
ehci->hcs_params = readl (&ehci->caps->hcs_params);
/* /*
* hw default: 1K periodic list heads, one per frame. * hw default: 1K periodic list heads, one per frame.
* periodic_size can shrink by USBCMD update if hcc_params allows. * periodic_size can shrink by USBCMD update if hcc_params allows.
...@@ -204,7 +209,7 @@ static int ehci_start (struct usb_hcd *hcd) ...@@ -204,7 +209,7 @@ static int ehci_start (struct usb_hcd *hcd)
ehci->async = 0; ehci->async = 0;
ehci->reclaim = 0; ehci->reclaim = 0;
ehci->next_frame = -1; ehci->next_uframe = -1;
/* controller state: unknown --> reset */ /* controller state: unknown --> reset */
...@@ -310,7 +315,7 @@ static void ehci_stop (struct usb_hcd *hcd) ...@@ -310,7 +315,7 @@ static void ehci_stop (struct usb_hcd *hcd)
// root hub is shut down separately (first, when possible) // root hub is shut down separately (first, when possible)
scan_async (ehci); scan_async (ehci);
if (ehci->next_frame != -1) if (ehci->next_uframe != -1)
scan_periodic (ehci); scan_periodic (ehci);
ehci_mem_cleanup (ehci); ehci_mem_cleanup (ehci);
...@@ -332,14 +337,12 @@ static int ehci_get_frame (struct usb_hcd *hcd) ...@@ -332,14 +337,12 @@ static int ehci_get_frame (struct usb_hcd *hcd)
static int ehci_suspend (struct usb_hcd *hcd, u32 state) static int ehci_suspend (struct usb_hcd *hcd, u32 state)
{ {
struct ehci_hcd *ehci = hcd_to_ehci (hcd); struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 params;
int ports; int ports;
int i; int i;
dbg ("%s: suspend to %d", hcd->bus_name, state); dbg ("%s: suspend to %d", hcd->bus_name, state);
params = readl (&ehci->caps->hcs_params); ports = HCS_N_PORTS (ehci->hcs_params);
ports = HCS_N_PORTS (params);
// FIXME: This assumes what's probably a D3 level suspend... // FIXME: This assumes what's probably a D3 level suspend...
...@@ -375,14 +378,12 @@ dbg ("%s: suspend port %d", hcd->bus_name, i); ...@@ -375,14 +378,12 @@ dbg ("%s: suspend port %d", hcd->bus_name, i);
static int ehci_resume (struct usb_hcd *hcd) static int ehci_resume (struct usb_hcd *hcd)
{ {
struct ehci_hcd *ehci = hcd_to_ehci (hcd); struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 params;
int ports; int ports;
int i; int i;
dbg ("%s: resume", hcd->bus_name); dbg ("%s: resume", hcd->bus_name);
params = readl (&ehci->caps->hcs_params); ports = HCS_N_PORTS (ehci->hcs_params);
ports = HCS_N_PORTS (params);
// FIXME: if controller didn't retain state, // FIXME: if controller didn't retain state,
// return and let generic code clean it up // return and let generic code clean it up
...@@ -426,7 +427,7 @@ static void ehci_tasklet (unsigned long param) ...@@ -426,7 +427,7 @@ static void ehci_tasklet (unsigned long param)
if (ehci->reclaim_ready) if (ehci->reclaim_ready)
end_unlink_async (ehci); end_unlink_async (ehci);
scan_async (ehci); scan_async (ehci);
if (ehci->next_frame != -1) if (ehci->next_uframe != -1)
scan_periodic (ehci); scan_periodic (ehci);
// FIXME: when nothing is connected to the root hub, // FIXME: when nothing is connected to the root hub,
...@@ -440,20 +441,20 @@ static void ehci_irq (struct usb_hcd *hcd) ...@@ -440,20 +441,20 @@ static void ehci_irq (struct usb_hcd *hcd)
{ {
struct ehci_hcd *ehci = hcd_to_ehci (hcd); struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 status = readl (&ehci->regs->status); u32 status = readl (&ehci->regs->status);
int bh = 0; int bh;
/* clear (just) interrupts */
status &= INTR_MASK; status &= INTR_MASK;
if (!status) /* irq sharing? */
return;
/* clear (just) interrupts */
writel (status, &ehci->regs->status); writel (status, &ehci->regs->status);
readl (&ehci->regs->command); /* unblock posted write */ readl (&ehci->regs->command); /* unblock posted write */
bh = 0;
if (unlikely (hcd->state == USB_STATE_HALT)) /* irq sharing? */
return;
#ifdef EHCI_VERBOSE_DEBUG #ifdef EHCI_VERBOSE_DEBUG
/* unrequested/ignored: Port Change Detect, Frame List Rollover */ /* unrequested/ignored: Port Change Detect, Frame List Rollover */
if (status & INTR_MASK) dbg_status (ehci, "irq", status);
dbg_status (ehci, "irq", status);
#endif #endif
/* INT, ERR, and IAA interrupt rates can be throttled */ /* INT, ERR, and IAA interrupt rates can be throttled */
...@@ -520,17 +521,15 @@ static int ehci_urb_enqueue ( ...@@ -520,17 +521,15 @@ static int ehci_urb_enqueue (
return intr_submit (ehci, urb, &qtd_list, mem_flags); return intr_submit (ehci, urb, &qtd_list, mem_flags);
case PIPE_ISOCHRONOUS: case PIPE_ISOCHRONOUS:
#ifdef have_iso
if (urb->dev->speed == USB_SPEED_HIGH) if (urb->dev->speed == USB_SPEED_HIGH)
return itd_submit (ehci, urb); return itd_submit (ehci, urb, mem_flags);
#ifdef have_split_iso
else else
return sitd_submit (ehci, urb); return sitd_submit (ehci, urb, mem_flags);
#else #else
// FIXME highspeed iso stuff is written but never run/tested. dbg ("no split iso support yet");
// and the split iso support isn't even written yet.
dbg ("no iso support yet");
return -ENOSYS; return -ENOSYS;
#endif /* have_iso */ #endif /* have_split_iso */
} }
return 0; return 0;
......
drivers/usb/hcd/ehci-hub.c
View file @ 0a8d2a86
/* /*
* Copyright (c) 2001 by David Brownell * Copyright (c) 2001-2002 by David Brownell
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
...@@ -68,8 +68,7 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) ...@@ -68,8 +68,7 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf)
/* init status to no-changes */ /* init status to no-changes */
buf [0] = 0; buf [0] = 0;
temp = readl (&ehci->caps->hcs_params); ports = HCS_N_PORTS (ehci->hcs_params);
ports = HCS_N_PORTS (temp);
if (ports > 7) { if (ports > 7) {
buf [1] = 0; buf [1] = 0;
retval++; retval++;
...@@ -107,8 +106,7 @@ ehci_hub_descriptor ( ...@@ -107,8 +106,7 @@ ehci_hub_descriptor (
struct ehci_hcd *ehci, struct ehci_hcd *ehci,
struct usb_hub_descriptor *desc struct usb_hub_descriptor *desc
) { ) {
u32 params = readl (&ehci->caps->hcs_params); int ports = HCS_N_PORTS (ehci->hcs_params);
int ports = HCS_N_PORTS (params);
u16 temp; u16 temp;
desc->bDescriptorType = 0x29; desc->bDescriptorType = 0x29;
...@@ -124,10 +122,10 @@ ehci_hub_descriptor ( ...@@ -124,10 +122,10 @@ ehci_hub_descriptor (
memset (&desc->bitmap [temp], 0xff, temp); memset (&desc->bitmap [temp], 0xff, temp);
temp = 0x0008; /* per-port overcurrent reporting */ temp = 0x0008; /* per-port overcurrent reporting */
if (HCS_PPC (params)) /* per-port power control */ if (HCS_PPC (ehci->hcs_params))
temp |= 0x0001; temp |= 0x0001; /* per-port power control */
if (HCS_INDICATOR (params)) /* per-port indicators (LEDs) */ if (HCS_INDICATOR (ehci->hcs_params))
temp |= 0x0080; temp |= 0x0080; /* per-port indicators (LEDs) */
desc->wHubCharacteristics = cpu_to_le16 (temp); desc->wHubCharacteristics = cpu_to_le16 (temp);
} }
...@@ -142,8 +140,7 @@ static int ehci_hub_control ( ...@@ -142,8 +140,7 @@ static int ehci_hub_control (
u16 wLength u16 wLength
) { ) {
struct ehci_hcd *ehci = hcd_to_ehci (hcd); struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 params = readl (&ehci->caps->hcs_params); int ports = HCS_N_PORTS (ehci->hcs_params);
int ports = HCS_N_PORTS (params);
u32 temp; u32 temp;
unsigned long flags; unsigned long flags;
int retval = 0; int retval = 0;
...@@ -189,7 +186,7 @@ static int ehci_hub_control ( ...@@ -189,7 +186,7 @@ static int ehci_hub_control (
/* ? */ /* ? */
break; break;
case USB_PORT_FEAT_POWER: case USB_PORT_FEAT_POWER:
if (HCS_PPC (params)) if (HCS_PPC (ehci->hcs_params))
writel (temp & ~PORT_POWER, writel (temp & ~PORT_POWER,
&ehci->regs->port_status [wIndex]); &ehci->regs->port_status [wIndex]);
break; break;
...@@ -300,7 +297,7 @@ static int ehci_hub_control ( ...@@ -300,7 +297,7 @@ static int ehci_hub_control (
&ehci->regs->port_status [wIndex]); &ehci->regs->port_status [wIndex]);
break; break;
case USB_PORT_FEAT_POWER: case USB_PORT_FEAT_POWER:
if (HCS_PPC (params)) if (HCS_PPC (ehci->hcs_params))
writel (temp | PORT_POWER, writel (temp | PORT_POWER,
&ehci->regs->port_status [wIndex]); &ehci->regs->port_status [wIndex]);
break; break;
...@@ -312,6 +309,13 @@ static int ehci_hub_control ( ...@@ -312,6 +309,13 @@ static int ehci_hub_control (
hcd->bus_name, wIndex + 1); hcd->bus_name, wIndex + 1);
temp |= PORT_OWNER; temp |= PORT_OWNER;
} else { } else {
/* Philips 1562 wants CMD_RUN to reset */
if (!HCD_IS_RUNNING(ehci->hcd.state)) {
u32 cmd = readl (&ehci->regs->command);
cmd |= CMD_RUN;
writel (cmd, &ehci->regs->command);
ehci->hcd.state = USB_STATE_RUNNING;
}
vdbg ("%s port %d reset", vdbg ("%s port %d reset",
hcd->bus_name, wIndex + 1); hcd->bus_name, wIndex + 1);
temp |= PORT_RESET; temp |= PORT_RESET;
......
drivers/usb/hcd/ehci-q.c
View file @ 0a8d2a86
/* /*
* Copyright (c) 2001 by David Brownell * Copyright (c) 2001-2002 by David Brownell
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
...@@ -643,12 +643,19 @@ ehci_qh_make ( ...@@ -643,12 +643,19 @@ ehci_qh_make (
if (usb_pipecontrol (urb->pipe)) { if (usb_pipecontrol (urb->pipe)) {
info1 |= 64 << 16; /* usb2 fixed maxpacket */ info1 |= 64 << 16; /* usb2 fixed maxpacket */
info1 |= 1 << 14; /* toggle from qtd */ info1 |= 1 << 14; /* toggle from qtd */
info2 |= (EHCI_TUNE_MULT_HS << 30);
} else if (usb_pipebulk (urb->pipe)) { } else if (usb_pipebulk (urb->pipe)) {
info1 |= 512 << 16; /* usb2 fixed maxpacket */ info1 |= 512 << 16; /* usb2 fixed maxpacket */
info2 |= (EHCI_TUNE_MULT_HS << 30); info2 |= (EHCI_TUNE_MULT_HS << 30);
} else } else {
info1 |= usb_maxpacket (urb->dev, urb->pipe, u32 temp;
usb_pipeout (urb->pipe)) << 16; temp = usb_maxpacket (urb->dev, urb->pipe,
usb_pipeout (urb->pipe));
info1 |= (temp & 0x3ff) << 16; /* maxpacket */
/* HS intr can be "high bandwidth" */
temp = 1 + ((temp >> 11) & 0x03);
info2 |= temp << 30; /* mult */
}
break; break;
default: default:
#ifdef DEBUG #ifdef DEBUG
......
drivers/usb/hcd/ehci-sched.c
View file @ 0a8d2a86
/* /*
* Copyright (c) 2001 by David Brownell * Copyright (c) 2001-2002 by David Brownell
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
...@@ -55,12 +55,12 @@ periodic_next_shadow (union ehci_shadow *periodic, int tag) ...@@ -55,12 +55,12 @@ periodic_next_shadow (union ehci_shadow *periodic, int tag)
return &periodic->qh->qh_next; return &periodic->qh->qh_next;
case Q_TYPE_FSTN: case Q_TYPE_FSTN:
return &periodic->fstn->fstn_next; return &periodic->fstn->fstn_next;
#ifdef have_iso
case Q_TYPE_ITD: case Q_TYPE_ITD:
return &periodic->itd->itd_next; return &periodic->itd->itd_next;
#ifdef have_split_iso
case Q_TYPE_SITD: case Q_TYPE_SITD:
return &periodic->sitd->sitd_next; return &periodic->sitd->sitd_next;
#endif /* have_iso */ #endif /* have_split_iso */
} }
dbg ("BAD shadow %p tag %d", periodic->ptr, tag); dbg ("BAD shadow %p tag %d", periodic->ptr, tag);
// BUG (); // BUG ();
...@@ -109,9 +109,6 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) ...@@ -109,9 +109,6 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
u32 *hw_p = &ehci->periodic [frame]; u32 *hw_p = &ehci->periodic [frame];
union ehci_shadow *q = &ehci->pshadow [frame]; union ehci_shadow *q = &ehci->pshadow [frame];
unsigned usecs = 0; unsigned usecs = 0;
#ifdef have_iso
u32 temp = 0;
#endif
while (q->ptr) { while (q->ptr) {
switch (Q_NEXT_TYPE (*hw_p)) { switch (Q_NEXT_TYPE (*hw_p)) {
...@@ -130,15 +127,13 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) ...@@ -130,15 +127,13 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
} }
q = &q->fstn->fstn_next; q = &q->fstn->fstn_next;
break; break;
#ifdef have_iso
case Q_TYPE_ITD: case Q_TYPE_ITD:
temp = le32_to_cpu (q->itd->transaction [uframe]); /* NOTE the "one uframe per itd" policy */
temp >>= 16; if (q->itd->hw_transaction [uframe] != 0)
temp &= 0x0fff; usecs += q->itd->usecs;
if (temp)
usecs += HS_USECS_ISO (temp);
q = &q->itd->itd_next; q = &q->itd->itd_next;
break; break;
#ifdef have_split_iso
case Q_TYPE_SITD: case Q_TYPE_SITD:
temp = q->sitd->hw_fullspeed_ep & temp = q->sitd->hw_fullspeed_ep &
__constant_cpu_to_le32 (1 << 31); __constant_cpu_to_le32 (1 << 31);
...@@ -163,7 +158,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) ...@@ -163,7 +158,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
} }
q = &q->sitd->sitd_next; q = &q->sitd->sitd_next;
break; break;
#endif /* have_iso */ #endif /* have_split_iso */
default: default:
BUG (); BUG ();
} }
...@@ -178,6 +173,45 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) ...@@ -178,6 +173,45 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
static void enable_periodic (struct ehci_hcd *ehci)
{
u32 cmd;
/* did clearing PSE did take effect yet?
* takes effect only at frame boundaries...
*/
while (readl (&ehci->regs->status) & STS_PSS)
udelay (20);
cmd = readl (&ehci->regs->command) | CMD_PSE;
writel (cmd, &ehci->regs->command);
/* posted write ... PSS happens later */
ehci->hcd.state = USB_STATE_RUNNING;
/* make sure tasklet scans these */
ehci->next_uframe = readl (&ehci->regs->frame_index)
% (ehci->periodic_size << 3);
}
static void disable_periodic (struct ehci_hcd *ehci)
{
u32 cmd;
/* did setting PSE not take effect yet?
* takes effect only at frame boundaries...
*/
while (!(readl (&ehci->regs->status) & STS_PSS))
udelay (20);
cmd = readl (&ehci->regs->command) & ~CMD_PSE;
writel (cmd, &ehci->regs->command);
/* posted write ... */
ehci->next_uframe = -1;
}
/*-------------------------------------------------------------------------*/
static void intr_deschedule ( static void intr_deschedule (
struct ehci_hcd *ehci, struct ehci_hcd *ehci,
unsigned frame, unsigned frame,
...@@ -199,21 +233,9 @@ static void intr_deschedule ( ...@@ -199,21 +233,9 @@ static void intr_deschedule (
ehci->periodic_urbs--; ehci->periodic_urbs--;
/* maybe turn off periodic schedule */ /* maybe turn off periodic schedule */
if (!ehci->periodic_urbs) { if (!ehci->periodic_urbs)
u32 cmd = readl (&ehci->regs->command); disable_periodic (ehci);
else
/* did setting PSE not take effect yet?
* takes effect only at frame boundaries...
*/
while (!(readl (&ehci->regs->status) & STS_PSS))
udelay (20);
cmd &= ~CMD_PSE;
writel (cmd, &ehci->regs->command);
/* posted write ... */
ehci->next_frame = -1;
} else
vdbg ("periodic schedule still enabled"); vdbg ("periodic schedule still enabled");
spin_unlock_irqrestore (&ehci->lock, flags); spin_unlock_irqrestore (&ehci->lock, flags);
...@@ -242,7 +264,7 @@ static int intr_submit ( ...@@ -242,7 +264,7 @@ static int intr_submit (
) { ) {
unsigned epnum, period; unsigned epnum, period;
unsigned temp; unsigned temp;
unsigned short mult, usecs; unsigned short usecs;
unsigned long flags; unsigned long flags;
struct ehci_qh *qh; struct ehci_qh *qh;
struct hcd_dev *dev; struct hcd_dev *dev;
...@@ -255,12 +277,7 @@ static int intr_submit ( ...@@ -255,12 +277,7 @@ static int intr_submit (
epnum |= 0x10; epnum |= 0x10;
} else } else
temp = urb->dev->epmaxpacketout [epnum]; temp = urb->dev->epmaxpacketout [epnum];
mult = 1; if (urb->dev->speed != USB_SPEED_HIGH) {
if (urb->dev->speed == USB_SPEED_HIGH) {
/* high speed "high bandwidth" is coded in ep maxpacket */
mult += (temp >> 11) & 0x03;
temp &= 0x03ff;
} else {
dbg ("no intr/tt scheduling yet"); dbg ("no intr/tt scheduling yet");
status = -ENOSYS; status = -ENOSYS;
goto done; goto done;
...@@ -279,21 +296,12 @@ static int intr_submit ( ...@@ -279,21 +296,12 @@ static int intr_submit (
usecs = HS_USECS (urb->transfer_buffer_length); usecs = HS_USECS (urb->transfer_buffer_length);
/* /* FIXME handle HS periods of less than 1 frame. */
* force a power-of-two (frames) sized polling interval if (urb->interval < 8)
* period = 1;
* NOTE: endpoint->bInterval for highspeed is measured in uframes, else
* while for full/low speeds it's in frames. Here we "know" that period = urb->interval >> 8;
* urb->interval doesn't give acccess to high interrupt rates.
*/
period = ehci->periodic_size;
temp = period;
if (unlikely (urb->interval < 1))
urb->interval = 1;
while (temp > urb->interval)
temp >>= 1;
period = urb->interval = temp;
spin_lock_irqsave (&ehci->lock, flags); spin_lock_irqsave (&ehci->lock, flags);
/* get the qh (must be empty and idle) */ /* get the qh (must be empty and idle) */
...@@ -335,7 +343,6 @@ static int intr_submit ( ...@@ -335,7 +343,6 @@ static int intr_submit (
unsigned frame = urb->interval; unsigned frame = urb->interval;
qh->hw_next = EHCI_LIST_END; qh->hw_next = EHCI_LIST_END;
qh->hw_info2 |= cpu_to_le32 (mult << 30);
qh->usecs = usecs; qh->usecs = usecs;
urb->hcpriv = qh_put (qh); urb->hcpriv = qh_put (qh);
...@@ -378,7 +385,7 @@ static int intr_submit ( ...@@ -378,7 +385,7 @@ static int intr_submit (
/* stuff into the periodic schedule */ /* stuff into the periodic schedule */
qh->qh_state = QH_STATE_LINKED; qh->qh_state = QH_STATE_LINKED;
vdbg ("qh %p usecs %d period %d starting frame %d.%d", vdbg ("qh %p usecs %d period %d starting %d.%d",
qh, qh->usecs, period, frame, uframe); qh, qh->usecs, period, frame, uframe);
do { do {
if (unlikely (ehci->pshadow [frame].ptr != 0)) { if (unlikely (ehci->pshadow [frame].ptr != 0)) {
...@@ -397,23 +404,8 @@ static int intr_submit ( ...@@ -397,23 +404,8 @@ static int intr_submit (
usb_claim_bandwidth (urb->dev, urb, usecs, 0); usb_claim_bandwidth (urb->dev, urb, usecs, 0);
/* maybe enable periodic schedule processing */ /* maybe enable periodic schedule processing */
if (!ehci->periodic_urbs++) { if (!ehci->periodic_urbs++)
u32 cmd; enable_periodic (ehci);
/* did clearing PSE did take effect yet?
* takes effect only at frame boundaries...
*/
while (readl (&ehci->regs->status) & STS_PSS)
udelay (20);
cmd = readl (&ehci->regs->command) | CMD_PSE;
writel (cmd, &ehci->regs->command);
/* posted write ... PSS happens later */
ehci->hcd.state = USB_STATE_RUNNING;
/* make sure tasklet scans these */
ehci->next_frame = ehci_get_frame (&ehci->hcd);
}
break; break;
} while (frame); } while (frame);
...@@ -489,53 +481,56 @@ intr_complete ( ...@@ -489,53 +481,56 @@ intr_complete (
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
#ifdef have_iso static void
itd_free_list (struct ehci_hcd *ehci, struct urb *urb)
static inline void itd_free (struct ehci_hcd *ehci, struct ehci_itd *itd)
{ {
pci_pool_free (ehci->itd_pool, itd, itd->itd_dma); struct ehci_itd *first_itd = urb->hcpriv;
pci_unmap_single (ehci->hcd.pdev,
first_itd->buf_dma, urb->transfer_buffer_length,
usb_pipein (urb->pipe)
? PCI_DMA_FROMDEVICE
: PCI_DMA_TODEVICE);
while (!list_empty (&first_itd->itd_list)) {
struct ehci_itd *itd;
itd = list_entry (
first_itd->itd_list.next,
struct ehci_itd, itd_list);
list_del (&itd->itd_list);
pci_pool_free (ehci->itd_pool, itd, itd->itd_dma);
}
pci_pool_free (ehci->itd_pool, first_itd, first_itd->itd_dma);
urb->hcpriv = 0;
} }
/* static int
* Create itd and allocate into uframes within specified frame. itd_fill (
* Caller must update the resulting uframe links.
*/
static struct ehci_itd *
itd_make (
struct ehci_hcd *ehci, struct ehci_hcd *ehci,
struct ehci_itd *itd,
struct urb *urb, struct urb *urb,
unsigned index, // urb->iso_frame_desc [index] unsigned index, // urb->iso_frame_desc [index]
unsigned frame, // scheduled start dma_addr_t dma // mapped transfer buffer
dma_addr_t dma, // mapped transfer buffer
int mem_flags
) { ) {
struct ehci_itd *itd;
u64 temp; u64 temp;
u32 buf1; u32 buf1;
unsigned epnum, maxp, multi, usecs; unsigned i, epnum, maxp, multi;
unsigned length; unsigned length;
unsigned i, bufnum;
/* allocate itd, start to fill it */
itd = pci_pool_alloc (ehci->itd_pool, mem_flags, &dma);
if (!itd)
return itd;
itd->hw_next = EHCI_LIST_END; itd->hw_next = EHCI_LIST_END;
itd->urb = urb; itd->urb = urb;
itd->index = index; itd->index = index;
INIT_LIST_HEAD (&itd->itd_list);
itd->uframe = (frame * 8) % ehci->periodic_size;
/* tell itd about the buffer its transfers will consume */ /* tell itd about its transfer buffer, max 2 pages */
length = urb->iso_frame_desc [index].length; length = urb->iso_frame_desc [index].length;
dma += urb->iso_frame_desc [index].offset; dma += urb->iso_frame_desc [index].offset;
temp = dma & ~0x0fff; temp = dma & ~0x0fff;
for (i = 0; i < 7; i++) { for (i = 0; i < 2; i++) {
itd->hw_bufp [i] = cpu_to_le32 ((u32) temp); itd->hw_bufp [i] = cpu_to_le32 ((u32) temp);
itd->hw_bufp_hi [i] = cpu_to_le32 ((u32)(temp >> 32)); itd->hw_bufp_hi [i] = cpu_to_le32 ((u32)(temp >> 32));
temp += 0x0fff; temp += 0x1000;
} }
itd->buf_dma = dma;
/* /*
* this might be a "high bandwidth" highspeed endpoint, * this might be a "high bandwidth" highspeed endpoint,
...@@ -544,282 +539,407 @@ itd_make ( ...@@ -544,282 +539,407 @@ itd_make (
epnum = usb_pipeendpoint (urb->pipe); epnum = usb_pipeendpoint (urb->pipe);
if (usb_pipein (urb->pipe)) { if (usb_pipein (urb->pipe)) {
maxp = urb->dev->epmaxpacketin [epnum]; maxp = urb->dev->epmaxpacketin [epnum];
buf1 = (1 << 11) | maxp; buf1 = (1 << 11);
} else { } else {
maxp = urb->dev->epmaxpacketout [epnum]; maxp = urb->dev->epmaxpacketout [epnum];
buf1 = maxp; buf1 = 0;
} }
buf1 |= (maxp & 0x03ff);
multi = 1; multi = 1;
multi += (temp >> 11) & 0x03; multi += (maxp >> 11) & 0x03;
maxp &= 0x03ff; maxp &= 0x03ff;
maxp *= multi;
/* transfer can't fit in any uframe? */
if (length < 0 || maxp < length) {
dbg ("BAD iso packet: %d bytes, max %d, urb %p [%d] (of %d)",
length, maxp, urb, index,
urb->iso_frame_desc [index].length);
return -ENOSPC;
}
itd->usecs = HS_USECS_ISO (length);
/* "plus" info in low order bits of buffer pointers */ /* "plus" info in low order bits of buffer pointers */
itd->hw_bufp [0] |= cpu_to_le32 ((epnum << 8) | urb->dev->devnum); itd->hw_bufp [0] |= cpu_to_le32 ((epnum << 8) | urb->dev->devnum);
itd->hw_bufp [1] |= cpu_to_le32 (buf1); itd->hw_bufp [1] |= cpu_to_le32 (buf1);
itd->hw_bufp [2] |= cpu_to_le32 (multi); itd->hw_bufp [2] |= cpu_to_le32 (multi);
/* schedule as many uframes as needed */ /* figure hw_transaction[] value (it's scheduled later) */
maxp *= multi; itd->transaction = EHCI_ISOC_ACTIVE;
usecs = HS_USECS_ISO (maxp); itd->transaction |= dma & 0x0fff; /* offset; buffer=0 */
bufnum = 0; if ((index + 1) == urb->number_of_packets)
for (i = 0; i < 8; i++) { itd->transaction |= EHCI_ITD_IOC; /* end-of-urb irq */
unsigned t, offset, scratch; itd->transaction |= length << 16;
cpu_to_le32s (&itd->transaction);
if (length <= 0) { return 0;
itd->hw_transaction [i] = 0; }
continue;
}
/* don't commit more than 80% periodic == 100 usec */ static int
if ((periodic_usecs (ehci, itd->uframe, i) + usecs) > 100) itd_urb_transaction (
continue; struct ehci_hcd *ehci,
struct urb *urb,
int mem_flags
) {
int frame_index;
struct ehci_itd *first_itd, *itd;
int status;
dma_addr_t buf_dma, itd_dma;
/* we'll use this uframe; figure hw_transaction */ /* set up one dma mapping for this urb */
t = EHCI_ISOC_ACTIVE; buf_dma = pci_map_single (ehci->hcd.pdev,
t |= bufnum << 12; // which buffer? urb->transfer_buffer, urb->transfer_buffer_length,
offset = temp & 0x0fff; // offset therein usb_pipein (urb->pipe)
t |= offset; ? PCI_DMA_FROMDEVICE
if ((offset + maxp) >= 4096) // hc auto-wraps end-of-"page" : PCI_DMA_TODEVICE);
bufnum++; if (buf_dma == 0)
if (length <= maxp) { return -ENOMEM;
// interrupt only needed at end-of-urb
if ((index + 1) == urb->number_of_packets)
t |= EHCI_ITD_IOC;
scratch = length;
} else
scratch = maxp;
t |= scratch << 16;
t = cpu_to_le32 (t);
itd->hw_transaction [i] = itd->transaction [i] = t; /* allocate/init ITDs */
length -= scratch; for (frame_index = 0, first_itd = 0;
} frame_index < urb->number_of_packets;
if (length > 0) { frame_index++) {
dbg ("iso frame too big, urb %p [%d], %d extra (of %d)", itd = pci_pool_alloc (ehci->itd_pool, mem_flags, &itd_dma);
urb, index, length, urb->iso_frame_desc [index].length); if (!itd) {
itd_free (ehci, itd); status = -ENOMEM;
itd = 0; goto fail;
}
memset (itd, 0, sizeof *itd);
itd->itd_dma = itd_dma;
status = itd_fill (ehci, itd, urb, frame_index, buf_dma);
if (status != 0)
goto fail;
if (first_itd)
list_add_tail (&itd->itd_list,
&first_itd->itd_list);
else {
INIT_LIST_HEAD (&itd->itd_list);
urb->hcpriv = first_itd = itd;
}
} }
return itd; urb->error_count = 0;
return 0;
fail:
if (urb->hcpriv)
itd_free_list (ehci, urb);
return status;
} }
/*-------------------------------------------------------------------------*/
static inline void static inline void
itd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_itd *itd) itd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_itd *itd)
{ {
u32 ptr; /* always prepend ITD/SITD ... only QH tree is order-sensitive */
itd->itd_next = ehci->pshadow [frame];
itd->hw_next = ehci->periodic [frame];
ehci->pshadow [frame].itd = itd;
ehci->periodic [frame] = cpu_to_le32 (itd->itd_dma) | Q_TYPE_ITD;
}
ptr = cpu_to_le32 (itd->itd_dma); // type 0 == itd /*
if (ehci->pshadow [frame].ptr) { * return zero on success, else -errno
if (!itd->itd_next.ptr) { * - start holds first uframe to start scheduling into
itd->itd_next = ehci->pshadow [frame]; * - max is the first uframe it's NOT (!) OK to start scheduling into
itd->hw_next = ehci->periodic [frame]; * math to be done modulo "mod" (ehci->periodic_size << 3)
} else if (itd->itd_next.ptr != ehci->pshadow [frame].ptr) { */
dbg ("frame %d itd link goof", frame); static int get_iso_range (
BUG (); struct ehci_hcd *ehci,
struct urb *urb,
unsigned *start,
unsigned *max,
unsigned mod
) {
struct list_head *lh;
struct hcd_dev *dev = urb->dev->hcpriv;
int last = -1;
unsigned now, span, end;
span = urb->interval * urb->number_of_packets;
/* first see if we know when the next transfer SHOULD happen */
list_for_each (lh, &dev->urb_list) {
struct urb *u;
struct ehci_itd *itd;
unsigned s;
u = list_entry (lh, struct urb, urb_list);
if (u == urb || u->pipe != urb->pipe)
continue;
if (u->interval != urb->interval) { /* must not change! */
dbg ("urb %p interval %d ... != %p interval %d",
u, u->interval, urb, urb->interval);
return -EINVAL;
}
/* URB for this endpoint... covers through when? */
itd = urb->hcpriv;
s = itd->uframe + u->interval * u->number_of_packets;
if (last < 0)
last = s;
else {
/*
* So far we can only queue two ISO URBs...
*
* FIXME do interval math, figure out whether
* this URB is "before" or not ... also, handle
* the case where the URB might have completed,
* but hasn't yet been processed.
*/
dbg ("NYET: queue >2 URBs per ISO endpoint");
return -EDOM;
} }
} }
ehci->pshadow [frame].itd = itd;
ehci->periodic [frame] = ptr;
}
#define ISO_ERRS (EHCI_ISOC_BUF_ERR | EHCI_ISOC_BABBLE | EHCI_ISOC_XACTERR) /* calculate the legal range [start,max) */
now = readl (&ehci->regs->frame_index) + 1; /* next uframe */
if (!ehci->periodic_urbs)
now += 8; /* startup delay */
now %= mod;
end = now + mod;
if (last < 0) {
*start = now + ehci->i_thresh + /* paranoia */ 1;
*max = end - span;
if (*max < *start + 1)
*max = *start + 1;
} else {
*start = last % mod;
*max = (last + 1) % mod;
}
static unsigned long /* explicit start frame? */
itd_complete (struct ehci_hcd *ehci, struct ehci_itd *itd, unsigned long flags) if (!(urb->transfer_flags & USB_ISO_ASAP)) {
unsigned temp;
/* sanity check: must be in range */
urb->start_frame %= ehci->periodic_size;
temp = urb->start_frame << 3;
if (temp < *start)
temp += mod;
if (temp > *max)
return -EDOM;
/* use that explicit start frame */
*start = urb->start_frame << 3;
temp += 8;
if (temp < *max)
*max = temp;
}
// FIXME minimize wraparound to "now" ... insist max+span
// (and start+span) remains a few frames short of "end"
*max %= ehci->periodic_size;
if ((*start + span) < end)
return 0;
return -EFBIG;
}
static int
itd_schedule (struct ehci_hcd *ehci, struct urb *urb)
{ {
struct urb *urb = itd->urb; unsigned start, max, i;
int status;
unsigned mod = ehci->periodic_size << 3;
/* if not unlinking: */ for (i = 0; i < urb->number_of_packets; i++) {
if (!(urb->transfer_flags & EHCI_STATE_UNLINK) urb->iso_frame_desc [i].status = -EINPROGRESS;
&& ehci->hcd.state != USB_STATE_HALT) { urb->iso_frame_desc [i].actual_length = 0;
int i; }
struct usb_iso_packet_descriptor *desc;
struct ehci_itd *first_itd = urb->hcpriv;
/* update status for this frame's transfers */ if ((status = get_iso_range (ehci, urb, &start, &max, mod)) != 0)
desc = &urb->iso_frame_desc [itd->index]; return status;
desc->status = 0;
desc->actual_length = 0; do {
for (i = 0; i < 8; i++) { unsigned uframe;
u32 t = itd->hw_transaction [i]; unsigned usecs;
if (t & (ISO_ERRS | EHCI_ISOC_ACTIVE)) { struct ehci_itd *itd;
if (t & EHCI_ISOC_ACTIVE)
desc->status = -EXDEV; /* check schedule: enough space? */
else if (t & EHCI_ISOC_BUF_ERR) itd = urb->hcpriv;
desc->status = usb_pipein (urb->pipe) uframe = start;
? -ENOSR /* couldn't read */ for (i = 0, uframe = start;
: -ECOMM; /* couldn't write */ i < urb->number_of_packets;
else if (t & EHCI_ISOC_BABBLE) i++, uframe += urb->interval) {
desc->status = -EOVERFLOW; uframe %= mod;
else /* (t & EHCI_ISOC_XACTERR) */
desc->status = -EPROTO; /* can't commit more than 80% periodic == 100 usec */
if (periodic_usecs (ehci, uframe >> 3, uframe & 0x7)
> (100 - itd->usecs)) {
itd = 0;
break; break;
} }
desc->actual_length += EHCI_ITD_LENGTH (t); itd = list_entry (itd->itd_list.next,
struct ehci_itd, itd_list);
}
if (!itd)
continue;
/* that's where we'll schedule this! */
itd = urb->hcpriv;
urb->start_frame = start >> 3;
vdbg ("ISO urb %p (%d packets period %d) starting %d.%d",
urb, urb->number_of_packets, urb->interval,
urb->start_frame, start & 0x7);
for (i = 0, uframe = start, usecs = 0;
i < urb->number_of_packets;
i++, uframe += urb->interval) {
uframe %= mod;
itd->uframe = uframe;
itd->hw_transaction [uframe & 0x07] = itd->transaction;
itd_link (ehci, (uframe >> 3) % ehci->periodic_size,
itd);
usecs += itd->usecs;
itd = list_entry (itd->itd_list.next,
struct ehci_itd, itd_list);
} }
/* handle completion now? */ /* update bandwidth utilization records (for usbfs) */
if ((itd->index + 1) != urb->number_of_packets) /* FIXME usbcore expects per-frame average, which isn't
return flags; * most accurate model... this provides the total claim,
* and expects the average to be computed only display.
*/
usb_claim_bandwidth (urb->dev, urb, usecs, 1);
i = usb_pipein (urb->pipe); /* maybe enable periodic schedule processing */
if (i) if (!ehci->periodic_urbs++)
pci_dma_sync_single (ehci->hcd.pdev, enable_periodic (ehci);
first_itd->buf_dma,
urb->transfer_buffer_length, return 0;
PCI_DMA_FROMDEVICE);
/* call completion with no locks; it can unlink ... */
spin_unlock_irqrestore (&ehci->lock, flags);
urb->complete (urb);
spin_lock_irqsave (&ehci->lock, flags);
/* re-activate this URB? or unlink? */
if (!(urb->transfer_flags & EHCI_STATE_UNLINK)
&& ehci->hcd.state != USB_STATE_HALT) {
if (!i)
pci_dma_sync_single (ehci->hcd.pdev,
first_itd->buf_dma,
urb->transfer_buffer_length,
PCI_DMA_TODEVICE);
itd = urb->hcpriv;
do {
for (i = 0; i < 8; i++)
itd->hw_transaction [i]
= itd->transaction [i];
itd = list_entry (itd->itd_list.next,
struct ehci_itd, itd_list);
} while (itd != urb->hcpriv);
return flags;
}
/* unlink done only on the last itd */ } while ((start = ++start % mod) != max);
} else if ((itd->index + 1) != urb->number_of_packets)
/* no room in the schedule */
dbg ("urb %p, CAN'T SCHEDULE", urb);
return -ENOSPC;
}
/*-------------------------------------------------------------------------*/
#define ISO_ERRS (EHCI_ISOC_BUF_ERR | EHCI_ISOC_BABBLE | EHCI_ISOC_XACTERR)
static unsigned long
itd_complete (
struct ehci_hcd *ehci,
struct ehci_itd *itd,
unsigned uframe,
unsigned long flags
) {
struct urb *urb = itd->urb;
struct usb_iso_packet_descriptor *desc;
u32 t;
/* update status for this uframe's transfers */
desc = &urb->iso_frame_desc [itd->index];
t = itd->hw_transaction [uframe];
itd->hw_transaction [uframe] = 0;
if (t & EHCI_ISOC_ACTIVE)
desc->status = -EXDEV;
else if (t & ISO_ERRS) {
urb->error_count++;
if (t & EHCI_ISOC_BUF_ERR)
desc->status = usb_pipein (urb->pipe)
? -ENOSR /* couldn't read */
: -ECOMM; /* couldn't write */
else if (t & EHCI_ISOC_BABBLE)
desc->status = -EOVERFLOW;
else /* (t & EHCI_ISOC_XACTERR) */
desc->status = -EPROTO;
/* HC need not update length with this error */
if (!(t & EHCI_ISOC_BABBLE))
desc->actual_length += EHCI_ITD_LENGTH (t);
} else {
desc->status = 0;
desc->actual_length += EHCI_ITD_LENGTH (t);
}
vdbg ("itd %p urb %p packet %d/%d trans %x status %d len %d",
itd, urb, itd->index + 1, urb->number_of_packets,
t, desc->status, desc->actual_length);
/* handle completion now? */
if ((itd->index + 1) != urb->number_of_packets)
return flags; return flags;
/* we're unlinking ... */ /*
* For now, always give the urb back to the driver ... expect it
* to submit a new urb (or resubmit this), and to have another
* already queued when un-interrupted transfers are needed.
* No, that's not what OHCI or UHCI are now doing.
*
* FIXME Revisit the ISO URB model. It's cleaner not to have all
* the special case magic, but it'd be faster to reuse existing
* ITD/DMA setup and schedule state. Easy to dma_sync/complete(),
* then either reschedule or, if unlinking, free and giveback().
* But we can't overcommit like the full and low speed HCs do, and
* there's no clean way to report an error when rescheduling...
*
* NOTE that for now we don't accelerate ISO unlinks; they just
* happen according to the current schedule. Means a delay of
* up to about a second (max).
*/
itd_free_list (ehci, urb);
if (urb->status == -EINPROGRESS)
urb->status = 0;
/* decouple urb from the hcd */
spin_unlock_irqrestore (&ehci->lock, flags); spin_unlock_irqrestore (&ehci->lock, flags);
if (ehci->hcd.state == USB_STATE_HALT) usb_hcd_giveback_urb (&ehci->hcd, urb);
urb->status = -ESHUTDOWN;
itd = urb->hcpriv;
urb->hcpriv = 0;
ehci_urb_done (ehci, itd->buf_dma, urb);
spin_lock_irqsave (&ehci->lock, flags); spin_lock_irqsave (&ehci->lock, flags);
/* take itds out of the hc's periodic schedule */ /* defer stopping schedule; completion can submit */
list_entry (itd->itd_list.prev, struct ehci_itd, itd_list) ehci->periodic_urbs--;
->itd_list.next = 0; if (!ehci->periodic_urbs)
do { disable_periodic (ehci);
struct ehci_itd *next;
if (itd->itd_list.next)
next = list_entry (itd->itd_list.next,
struct ehci_itd, itd_list);
else
next = 0;
// FIXME: hc WILL (!) lap us here, if we get behind
// by 128 msec (or less, with smaller periodic_size).
// Reading/caching these itds will cause trouble...
periodic_unlink (ehci, itd->uframe, itd);
itd_free (ehci, itd);
itd = next;
} while (itd);
return flags; return flags;
} }
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
static int itd_submit (struct ehci_hcd *ehci, struct urb *urb) static int itd_submit (struct ehci_hcd *ehci, struct urb *urb, int mem_flags)
{ {
struct ehci_itd *first_itd = 0, *itd; int status;
unsigned frame_index; unsigned long flags;
dma_addr_t dma;
unsigned long flags;
dbg ("itd_submit");
/* set up one dma mapping for this urb */ dbg ("itd_submit urb %p", urb);
dma = pci_map_single (ehci->hcd.pdev,
urb->transfer_buffer, urb->transfer_buffer_length,
usb_pipein (urb->pipe)
? PCI_DMA_FROMDEVICE
: PCI_DMA_TODEVICE);
if (dma == 0)
return -ENOMEM;
/* NOTE DMA mapping assumes this ... */
if (urb->iso_frame_desc [0].offset != 0)
return -EINVAL;
/* /*
* Schedule as needed. This is VERY optimistic about free * NOTE doing this for now, anticipating periodic URB models
* bandwidth! But the API assumes drivers can pick frames * get updated to be "explicit resubmit".
* intelligently (how?), so there's no other good option.
*
* FIXME this doesn't handle urb->next rings, or try to
* use the iso periodicity.
*/ */
if (urb->transfer_flags & USB_ISO_ASAP) { if (urb->next) {
urb->start_frame = ehci_get_frame (&ehci->hcd); dbg ("use explicit resubmit for ISO");
urb->start_frame++; return -EINVAL;
}
urb->start_frame %= ehci->periodic_size;
/* create and populate itds (doing uframe scheduling) */
spin_lock_irqsave (&ehci->lock, flags);
for (frame_index = 0;
frame_index < urb->number_of_packets;
frame_index++) {
itd = itd_make (ehci, urb, frame_index,
urb->start_frame + frame_index,
dma, SLAB_ATOMIC);
if (itd) {
if (first_itd)
list_add_tail (&itd->itd_list,
&first_itd->itd_list);
else
first_itd = itd;
} else {
spin_unlock_irqrestore (&ehci->lock, flags);
if (first_itd) {
while (!list_empty (&first_itd->itd_list)) {
itd = list_entry (
first_itd->itd_list.next,
struct ehci_itd, itd_list);
list_del (&itd->itd_list);
itd_free (ehci, itd);
}
itd_free (ehci, first_itd);
}
pci_unmap_single (ehci->hcd.pdev,
dma, urb->transfer_buffer_length,
usb_pipein (urb->pipe)
? PCI_DMA_FROMDEVICE
: PCI_DMA_TODEVICE);
return -ENOMEM;
}
} }
/* stuff into the schedule */ /* allocate ITDs w/o locking anything */
itd = first_itd; status = itd_urb_transaction (ehci, urb, mem_flags);
do { if (status < 0)
unsigned i; return status;
for (i = 0; i < 8; i++) {
if (!itd->hw_transaction [i])
continue;
itd_link (ehci, itd->uframe + i, itd);
}
itd = list_entry (itd->itd_list.next,
struct ehci_itd, itd_list);
} while (itd != first_itd);
urb->hcpriv = first_itd;
/* schedule ... need to lock */
spin_lock_irqsave (&ehci->lock, flags);
status = itd_schedule (ehci, urb);
spin_unlock_irqrestore (&ehci->lock, flags); spin_unlock_irqrestore (&ehci->lock, flags);
return 0; if (status < 0)
itd_free_list (ehci, urb);
return status;
} }
#ifdef have_split_iso
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
/* /*
...@@ -827,7 +947,7 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb) ...@@ -827,7 +947,7 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb)
* the TTs in USB 2.0 hubs. * the TTs in USB 2.0 hubs.
*/ */
static inline void static void
sitd_free (struct ehci_hcd *ehci, struct ehci_sitd *sitd) sitd_free (struct ehci_hcd *ehci, struct ehci_sitd *sitd)
{ {
pci_pool_free (ehci->sitd_pool, sitd, sitd->sitd_dma); pci_pool_free (ehci->sitd_pool, sitd, sitd->sitd_dma);
...@@ -861,7 +981,7 @@ sitd_make ( ...@@ -861,7 +981,7 @@ sitd_make (
} }
static inline void static void
sitd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_sitd *sitd) sitd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_sitd *sitd)
{ {
u32 ptr; u32 ptr;
...@@ -894,12 +1014,11 @@ sitd_complete ( ...@@ -894,12 +1014,11 @@ sitd_complete (
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb) static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb, int mem_flags)
{ {
// struct ehci_sitd *first_sitd = 0; // struct ehci_sitd *first_sitd = 0;
unsigned frame_index; unsigned frame_index;
dma_addr_t dma; dma_addr_t dma;
int mem_flags;
dbg ("NYI -- sitd_submit"); dbg ("NYI -- sitd_submit");
...@@ -908,8 +1027,6 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb) ...@@ -908,8 +1027,6 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb)
// FIXME: setup one big dma mapping // FIXME: setup one big dma mapping
dma = 0; dma = 0;
mem_flags = SLAB_ATOMIC;
for (frame_index = 0; for (frame_index = 0;
frame_index < urb->number_of_packets; frame_index < urb->number_of_packets;
frame_index++) { frame_index++) {
...@@ -941,53 +1058,62 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb) ...@@ -941,53 +1058,62 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb)
return -ENOSYS; return -ENOSYS;
} }
#endif /* have_split_iso */
#endif /* have_iso */
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
static void scan_periodic (struct ehci_hcd *ehci) static void scan_periodic (struct ehci_hcd *ehci)
{ {
unsigned frame; unsigned frame, clock, now_uframe, mod;
unsigned clock;
unsigned long flags; unsigned long flags;
mod = ehci->periodic_size << 3;
spin_lock_irqsave (&ehci->lock, flags); spin_lock_irqsave (&ehci->lock, flags);
/* /*
* When running, scan from last scan point up to "now" * When running, scan from last scan point up to "now"
* else clean up by scanning everything that's left.
* Touches as few pages as possible: cache-friendly. * Touches as few pages as possible: cache-friendly.
* It's safe to scan entries more than once, though. * Don't scan ISO entries more than once, though.
*/ */
if (HCD_IS_RUNNING (ehci->hcd.state)) { frame = ehci->next_uframe >> 3;
frame = ehci->next_frame; if (HCD_IS_RUNNING (ehci->hcd.state))
clock = ehci_get_frame (&ehci->hcd); now_uframe = readl (&ehci->regs->frame_index);
else
now_uframe = (frame << 3) - 1;
now_uframe %= mod;
clock = now_uframe >> 3;
/* when shutting down, scan everything for thoroughness */
} else {
frame = 0;
clock = ehci->periodic_size - 1;
}
for (;;) { for (;;) {
union ehci_shadow q; union ehci_shadow q, *q_p;
u32 type; u32 type, *hw_p;
unsigned uframes;
restart: restart:
q.ptr = ehci->pshadow [frame].ptr; /* scan schedule to _before_ current frame index */
type = Q_NEXT_TYPE (ehci->periodic [frame]); if (frame == clock)
uframes = now_uframe & 0x07;
else
uframes = 8;
q_p = &ehci->pshadow [frame];
hw_p = &ehci->periodic [frame];
q.ptr = q_p->ptr;
type = Q_NEXT_TYPE (*hw_p);
/* scan each element in frame's queue for completions */ /* scan each element in frame's queue for completions */
while (q.ptr != 0) { while (q.ptr != 0) {
int last; int last;
unsigned uf;
union ehci_shadow temp; union ehci_shadow temp;
switch (type) { switch (type) {
case Q_TYPE_QH: case Q_TYPE_QH:
last = (q.qh->hw_next == EHCI_LIST_END); last = (q.qh->hw_next == EHCI_LIST_END);
temp = q.qh->qh_next;
type = Q_NEXT_TYPE (q.qh->hw_next);
flags = intr_complete (ehci, frame, flags = intr_complete (ehci, frame,
qh_put (q.qh), flags); qh_put (q.qh), flags);
type = Q_NEXT_TYPE (q.qh->hw_next);
temp = q.qh->qh_next;
qh_unput (ehci, q.qh); qh_unput (ehci, q.qh);
q = temp; q = temp;
break; break;
...@@ -1000,22 +1126,49 @@ static void scan_periodic (struct ehci_hcd *ehci) ...@@ -1000,22 +1126,49 @@ static void scan_periodic (struct ehci_hcd *ehci)
dbg ("ignoring completions from FSTNs"); dbg ("ignoring completions from FSTNs");
} }
type = Q_NEXT_TYPE (q.fstn->hw_next); type = Q_NEXT_TYPE (q.fstn->hw_next);
temp = q.fstn->fstn_next; q = q.fstn->fstn_next;
break; break;
#ifdef have_iso
case Q_TYPE_ITD: case Q_TYPE_ITD:
last = (q.itd->hw_next == EHCI_LIST_END); last = (q.itd->hw_next == EHCI_LIST_END);
flags = itd_complete (ehci, q.itd, flags);
type = Q_NEXT_TYPE (q.itd->hw_next); /* Unlink each (S)ITD we see, since the ISO
q = q.itd->itd_next; * URB model forces constant rescheduling.
* That complicates sharing uframes in ITDs,
* and means we need to skip uframes the HC
* hasn't yet processed.
*/
for (uf = 0; uf < uframes; uf++) {
if (q.itd->hw_transaction [uf] != 0) {
temp = q;
*q_p = q.itd->itd_next;
*hw_p = q.itd->hw_next;
type = Q_NEXT_TYPE (*hw_p);
/* might free q.itd ... */
flags = itd_complete (ehci,
temp.itd, uf, flags);
break;
}
}
/* we might skip this ITD's uframe ... */
if (uf == uframes) {
q_p = &q.itd->itd_next;
hw_p = &q.itd->hw_next;
type = Q_NEXT_TYPE (q.itd->hw_next);
}
q = *q_p;
break; break;
#ifdef have_split_iso
case Q_TYPE_SITD: case Q_TYPE_SITD:
last = (q.sitd->hw_next == EHCI_LIST_END); last = (q.sitd->hw_next == EHCI_LIST_END);
flags = sitd_complete (ehci, q.sitd, flags); flags = sitd_complete (ehci, q.sitd, flags);
type = Q_NEXT_TYPE (q.sitd->hw_next); type = Q_NEXT_TYPE (q.sitd->hw_next);
// FIXME unlink SITD after split completes
q = q.sitd->sitd_next; q = q.sitd->sitd_next;
break; break;
#endif /* have_iso */ #endif /* have_split_iso */
default: default:
dbg ("corrupt type %d frame %d shadow %p", dbg ("corrupt type %d frame %d shadow %p",
type, frame, q.ptr); type, frame, q.ptr);
...@@ -1044,13 +1197,16 @@ static void scan_periodic (struct ehci_hcd *ehci) ...@@ -1044,13 +1197,16 @@ static void scan_periodic (struct ehci_hcd *ehci)
if (!HCD_IS_RUNNING (ehci->hcd.state)) if (!HCD_IS_RUNNING (ehci->hcd.state))
break; break;
ehci->next_frame = clock; ehci->next_uframe = now_uframe;
now = ehci_get_frame (&ehci->hcd); now = readl (&ehci->regs->frame_index) % mod;
if (clock == now) if (now_uframe == now)
break; break;
clock = now;
} else if (++frame >= ehci->periodic_size) /* rescan the rest of this frame, then ... */
frame = 0; now_uframe = now;
clock = now_uframe >> 3;
} else
frame = (frame + 1) % ehci->periodic_size;
} }
spin_unlock_irqrestore (&ehci->lock, flags); spin_unlock_irqrestore (&ehci->lock, flags);
} }
drivers/usb/hcd/ehci.h
View file @ 0a8d2a86
/* /*
* Copyright (c) 2001 by David Brownell * Copyright (c) 2001-2002 by David Brownell
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
...@@ -49,7 +49,7 @@ struct ehci_hcd { /* one per controller */ ...@@ -49,7 +49,7 @@ struct ehci_hcd { /* one per controller */
unsigned i_thresh; /* uframes HC might cache */ unsigned i_thresh; /* uframes HC might cache */
union ehci_shadow *pshadow; /* mirror hw periodic table */ union ehci_shadow *pshadow; /* mirror hw periodic table */
int next_frame; /* scan periodic, start here */ int next_uframe; /* scan periodic, start here */
unsigned periodic_urbs; /* how many urbs scheduled? */ unsigned periodic_urbs; /* how many urbs scheduled? */
/* deferred work from IRQ, etc */ /* deferred work from IRQ, etc */
...@@ -62,6 +62,7 @@ struct ehci_hcd { /* one per controller */ ...@@ -62,6 +62,7 @@ struct ehci_hcd { /* one per controller */
struct usb_hcd hcd; struct usb_hcd hcd;
struct ehci_caps *caps; struct ehci_caps *caps;
struct ehci_regs *regs; struct ehci_regs *regs;
u32 hcs_params; /* cached register copy */
/* per-HC memory pools (could be per-PCI-bus, but ...) */ /* per-HC memory pools (could be per-PCI-bus, but ...) */
struct pci_pool *qh_pool; /* qh per active urb */ struct pci_pool *qh_pool; /* qh per active urb */
...@@ -324,13 +325,14 @@ struct ehci_itd { ...@@ -324,13 +325,14 @@ struct ehci_itd {
union ehci_shadow itd_next; /* ptr to periodic q entry */ union ehci_shadow itd_next; /* ptr to periodic q entry */
struct urb *urb; struct urb *urb;
unsigned index; /* in urb->iso_frame_desc */
struct list_head itd_list; /* list of urb frames' itds */ struct list_head itd_list; /* list of urb frames' itds */
dma_addr_t buf_dma; /* frame's buffer address */ dma_addr_t buf_dma; /* frame's buffer address */
unsigned uframe; /* in periodic schedule */ /* for now, only one hw_transaction per itd */
u32 transaction [8]; /* copy of hw_transaction */ u32 transaction;
u16 index; /* in urb->iso_frame_desc */
u16 uframe; /* in periodic schedule */
u16 usecs;
} __attribute__ ((aligned (32))); } __attribute__ ((aligned (32)));
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
......
drivers/usb/pegasus.c
View file @ 0a8d2a86
/* /*
** Pegasus: USB 10/100Mbps/HomePNA (1Mbps) Controller ** Pegasus: USB 10/100Mbps/HomePNA (1Mbps) Controller
** **
** Copyright (c) 1999-2001 Petko Manolov (pmanolov@lnxw.com) ** Copyright (c) 1999-2002 Petko Manolov (petkan@users.sourceforge.net)
** **
** **
** ChangeLog: ** ChangeLog:
...@@ -21,6 +21,8 @@ ...@@ -21,6 +21,8 @@
** TODO: suppressing HCD warnings spewage on disconnect. ** TODO: suppressing HCD warnings spewage on disconnect.
** v0.4.13 Ethernet address is now set at probe(), not at open() ** v0.4.13 Ethernet address is now set at probe(), not at open()
** time as this seems to break dhcpd. ** time as this seems to break dhcpd.
** v0.5.0 branch to 2.5.x kernels
** v0.5.1 ethtool support added
*/ */
/* /*
...@@ -46,20 +48,25 @@ ...@@ -46,20 +48,25 @@
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/etherdevice.h> #include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/usb.h> #include <linux/usb.h>
#include <linux/module.h> #include <linux/module.h>
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include <asm/uaccess.h>
#include "pegasus.h" #include "pegasus.h"
/* /*
* Version Information * Version Information
*/ */
#define DRIVER_VERSION "v0.4.23 (2002/02/01)" #define DRIVER_VERSION "v0.5.1 (2002/03/06)"
#define DRIVER_AUTHOR "Petko Manolov <pmanolov@lnxw.com>" #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
#define PEGASUS_USE_INTR #define PEGASUS_USE_INTR
#define PEGASUS_WRITE_EEPROM #define PEGASUS_WRITE_EEPROM
#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
BMSR_100FULL | BMSR_ANEGCAPABLE)
static int loopback = 0; static int loopback = 0;
static int mii_mode = 0; static int mii_mode = 0;
...@@ -461,8 +468,8 @@ static inline int reset_mac( pegasus_t *pegasus ) ...@@ -461,8 +468,8 @@ static inline int reset_mac( pegasus_t *pegasus )
usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK ) { usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK ) {
__u16 auxmode; __u16 auxmode;
read_mii_word( pegasus, 0, 0x1b, &auxmode ); read_mii_word( pegasus, 0, MII_TPISTATUS, &auxmode );
write_mii_word( pegasus, 0, 0x1b, auxmode | 4 ); write_mii_word( pegasus, 0, MII_TPISTATUS, auxmode | 4 );
} }
return 0; return 0;
...@@ -481,16 +488,16 @@ static int enable_net_traffic( struct net_device *dev, struct usb_device *usb ) ...@@ -481,16 +488,16 @@ static int enable_net_traffic( struct net_device *dev, struct usb_device *usb )
if ( !(bmsr & 0x20) && !loopback ) if ( !(bmsr & 0x20) && !loopback )
warn( "%s: link NOT established (0x%x) - check the cable.", warn( "%s: link NOT established (0x%x) - check the cable.",
dev->name, bmsr ); dev->name, bmsr );
if ( read_mii_word(pegasus, pegasus->phy, MII_ANLPA, &linkpart) ) if ( read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart) )
return 2; return 2;
if ( !(linkpart & 1) ) if ( !(linkpart & 1) )
warn( "link partner stat %x", linkpart ); warn( "link partner stat %x", linkpart );
data[0] = 0xc9; data[0] = 0xc9;
data[1] = 0; data[1] = 0;
if ( linkpart & (ANLPA_100TX_FD | ANLPA_10T_FD) ) if ( linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL) )
data[1] |= 0x20; /* set full duplex */ data[1] |= 0x20; /* set full duplex */
if ( linkpart & (ANLPA_100TX_FD | ANLPA_100TX_HD) ) if ( linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF) )
data[1] |= 0x10; /* set 100 Mbps */ data[1] |= 0x10; /* set 100 Mbps */
if ( mii_mode ) if ( mii_mode )
data[1] = 0; data[1] = 0;
...@@ -710,15 +717,26 @@ static inline void get_interrupt_interval( pegasus_t *pegasus ) ...@@ -710,15 +717,26 @@ static inline void get_interrupt_interval( pegasus_t *pegasus )
} }
static void set_carrier(struct net_device *net)
{
pegasus_t *pegasus;
short tmp;
pegasus = net->priv;
read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp);
if (tmp & BMSR_LSTATUS)
netif_carrier_on(net);
else
netif_carrier_off(net);
}
static int pegasus_open(struct net_device *net) static int pegasus_open(struct net_device *net)
{ {
pegasus_t *pegasus = (pegasus_t *)net->priv; pegasus_t *pegasus = (pegasus_t *)net->priv;
int res; int res;
if ( (res = enable_net_traffic(net, pegasus->usb)) ) {
err("can't enable_net_traffic() - %d", res);
return -EIO;
}
FILL_BULK_URB( pegasus->rx_urb, pegasus->usb, FILL_BULK_URB( pegasus->rx_urb, pegasus->usb,
usb_rcvbulkpipe(pegasus->usb, 1), usb_rcvbulkpipe(pegasus->usb, 1),
pegasus->rx_buff, PEGASUS_MAX_MTU, pegasus->rx_buff, PEGASUS_MAX_MTU,
...@@ -735,6 +753,11 @@ static int pegasus_open(struct net_device *net) ...@@ -735,6 +753,11 @@ static int pegasus_open(struct net_device *net)
#endif #endif
netif_start_queue( net ); netif_start_queue( net );
pegasus->flags |= PEGASUS_RUNNING; pegasus->flags |= PEGASUS_RUNNING;
if ( (res = enable_net_traffic(net, pegasus->usb)) ) {
err("can't enable_net_traffic() - %d", res);
return -EIO;
}
set_carrier(net);
return 0; return 0;
} }
...@@ -760,24 +783,103 @@ static int pegasus_close( struct net_device *net ) ...@@ -760,24 +783,103 @@ static int pegasus_close( struct net_device *net )
} }
static int pegasus_ethtool_ioctl(struct net_device *net, void *uaddr)
{
pegasus_t *pegasus;
int cmd;
char tmp[128];
pegasus = net->priv;
if (get_user(cmd, (int *)uaddr))
return -EFAULT;
switch (cmd) {
case ETHTOOL_GDRVINFO: {
struct ethtool_drvinfo info = {ETHTOOL_GDRVINFO};
strncpy(info.driver, DRIVER_DESC, ETHTOOL_BUSINFO_LEN);
strncpy(info.version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
sprintf(tmp, "usb%d:%d", pegasus->usb->bus->busnum,
pegasus->usb->devnum);
strncpy(info.bus_info, tmp, ETHTOOL_BUSINFO_LEN);
if (copy_to_user(uaddr, &info, sizeof(info)))
return -EFAULT;
return 0;
}
case ETHTOOL_GSET: {
struct ethtool_cmd ecmd;
short lpa, bmcr;
if (copy_from_user(&ecmd, uaddr, sizeof(ecmd)))
return -EFAULT;
ecmd.supported = (SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_Autoneg |
SUPPORTED_TP |
SUPPORTED_MII);
ecmd.port = PORT_TP;
ecmd.transceiver = XCVR_INTERNAL;
ecmd.phy_address = pegasus->phy;
read_mii_word(pegasus, pegasus->phy, MII_BMCR, &bmcr);
read_mii_word(pegasus, pegasus->phy, MII_LPA, &lpa);
if (bmcr & BMCR_ANENABLE) {
ecmd.autoneg = AUTONEG_ENABLE;
ecmd.speed = lpa & (LPA_100HALF|LPA_100FULL) ?
SPEED_100 : SPEED_10;
if (ecmd.speed == SPEED_100)
ecmd.duplex = lpa & LPA_100FULL ?
DUPLEX_FULL : DUPLEX_HALF;
else
ecmd.duplex = lpa & LPA_10FULL ?
DUPLEX_FULL : DUPLEX_HALF;
} else {
ecmd.autoneg = AUTONEG_DISABLE;
ecmd.speed = bmcr & BMCR_SPEED100 ?
SPEED_100 : SPEED_10;
ecmd.duplex = bmcr & BMCR_FULLDPLX ?
DUPLEX_FULL : DUPLEX_HALF;
}
if (copy_to_user(uaddr, &ecmd, sizeof(ecmd)))
return -EFAULT;
return 0;
}
case ETHTOOL_SSET: {
return -EOPNOTSUPP;
}
case ETHTOOL_GLINK: {
struct ethtool_value edata = {ETHTOOL_GLINK};
edata.data = netif_carrier_ok(net);
if (copy_to_user(uaddr, &edata, sizeof(edata)))
return -EFAULT;
return 0;
}
default:
return -EOPNOTSUPP;
}
}
static int pegasus_ioctl( struct net_device *net, struct ifreq *rq, int cmd ) static int pegasus_ioctl( struct net_device *net, struct ifreq *rq, int cmd )
{ {
__u16 *data = (__u16 *)&rq->ifr_data; __u16 *data = (__u16 *)&rq->ifr_data;
pegasus_t *pegasus = net->priv; pegasus_t *pegasus = net->priv;
switch(cmd) { switch(cmd) {
case SIOCDEVPRIVATE: case SIOCETHTOOL:
data[0] = pegasus->phy; return pegasus_ethtool_ioctl(net, rq->ifr_data);
case SIOCDEVPRIVATE+1: case SIOCDEVPRIVATE:
read_mii_word(pegasus, data[0], data[1]&0x1f, &data[3]); data[0] = pegasus->phy;
return 0; case SIOCDEVPRIVATE+1:
case SIOCDEVPRIVATE+2: read_mii_word(pegasus, data[0], data[1]&0x1f, &data[3]);
if ( !capable(CAP_NET_ADMIN) ) return 0;
return -EPERM; case SIOCDEVPRIVATE+2:
write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); if ( !capable(CAP_NET_ADMIN) )
return 0; return -EPERM;
default: write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
return -EOPNOTSUPP; return 0;
default:
return -EOPNOTSUPP;
} }
} }
......
drivers/usb/pegasus.h
View file @ 0a8d2a86
/* /*
* Copyright (c) 1999,2000 Petko Manolov - Petkan (pmanolov@lnxw.com) * Copyright (c) 1999-2002 Petko Manolov - Petkan (petkan@users.sourceforge.net)
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
...@@ -31,14 +31,6 @@ ...@@ -31,14 +31,6 @@
#define EPROM_WR_ENABLE 0x10 #define EPROM_WR_ENABLE 0x10
#define EPROM_LOAD 0x20 #define EPROM_LOAD 0x20
#define MII_BMCR 0x00
#define MII_BMSR 0x01
#define BMSR_MEDIA 0x7808
#define MII_ANLPA 0x05
#define ANLPA_100TX_FD 0x0100
#define ANLPA_100TX_HD 0x0080
#define ANLPA_10T_FD 0x0040
#define ANLPA_10T_HD 0x0020
#define PHY_DONE 0x80 #define PHY_DONE 0x80
#define PHY_READ 0x40 #define PHY_READ 0x40
#define PHY_WRITE 0x20 #define PHY_WRITE 0x20
...@@ -184,6 +176,8 @@ PEGASUS_DEV( "ADMtek ADM8511 \"Pegasus II\" USB Ethernet", ...@@ -184,6 +176,8 @@ PEGASUS_DEV( "ADMtek ADM8511 \"Pegasus II\" USB Ethernet",
PEGASUS_DEV( "ADMtek AN986 \"Pegasus\" USB Ethernet (eval. board)", PEGASUS_DEV( "ADMtek AN986 \"Pegasus\" USB Ethernet (eval. board)",
VENDOR_ADMTEK, 0x0986, VENDOR_ADMTEK, 0x0986,
DEFAULT_GPIO_RESET | HAS_HOME_PNA ) DEFAULT_GPIO_RESET | HAS_HOME_PNA )
PEGASUS_DEV( "AN986A USB MAC", VENDOR_ADMTEK, 1986,
DEFAULT_GPIO_RESET | PEGASUS_II )
PEGASUS_DEV( "Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100, PEGASUS_DEV( "Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100,
DEFAULT_GPIO_RESET | PEGASUS_II ) DEFAULT_GPIO_RESET | PEGASUS_II )
PEGASUS_DEV( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121, PEGASUS_DEV( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121,
...@@ -254,6 +248,8 @@ PEGASUS_DEV( "smartNIC 2 PnP Adapter", VENDOR_SMARTBRIDGES, 0x0003, ...@@ -254,6 +248,8 @@ PEGASUS_DEV( "smartNIC 2 PnP Adapter", VENDOR_SMARTBRIDGES, 0x0003,
DEFAULT_GPIO_RESET | PEGASUS_II ) DEFAULT_GPIO_RESET | PEGASUS_II )
PEGASUS_DEV( "SMC 202 USB Ethernet", VENDOR_SMC, 0x0200, PEGASUS_DEV( "SMC 202 USB Ethernet", VENDOR_SMC, 0x0200,
DEFAULT_GPIO_RESET ) DEFAULT_GPIO_RESET )
PEGASUS_DEV( "SMC 2206 USB Ethernet", VENDOR_SMC, 0x0201,
DEFAULT_GPIO_RESET | PEGASUS_II)
PEGASUS_DEV( "SOHOware NUB100 Ethernet", VENDOR_SOHOWARE, 0x9100, PEGASUS_DEV( "SOHOware NUB100 Ethernet", VENDOR_SOHOWARE, 0x9100,
DEFAULT_GPIO_RESET ) DEFAULT_GPIO_RESET )
PEGASUS_DEV( "SpeedStream USB 10/100 Ethernet", VENDOR_SIEMENS, 0x1001, PEGASUS_DEV( "SpeedStream USB 10/100 Ethernet", VENDOR_SIEMENS, 0x1001,
......
drivers/usb/printer.c
View file @ 0a8d2a86
...@@ -91,7 +91,7 @@ struct usblp { ...@@ -91,7 +91,7 @@ struct usblp {
struct usb_device *dev; /* USB device */ struct usb_device *dev; /* USB device */
devfs_handle_t devfs; /* devfs device */ devfs_handle_t devfs; /* devfs device */
struct semaphore sem; /* locks this struct, especially "dev" */ struct semaphore sem; /* locks this struct, especially "dev" */
struct urb readurb, writeurb; /* The urbs */ struct urb *readurb, *writeurb; /* The urbs */
wait_queue_head_t wait; /* Zzzzz ... */ wait_queue_head_t wait; /* Zzzzz ... */
int readcount; /* Counter for reads */ int readcount; /* Counter for reads */
int ifnum; /* Interface number */ int ifnum; /* Interface number */
...@@ -253,15 +253,15 @@ static int usblp_open(struct inode *inode, struct file *file) ...@@ -253,15 +253,15 @@ static int usblp_open(struct inode *inode, struct file *file)
usblp->used = 1; usblp->used = 1;
file->private_data = usblp; file->private_data = usblp;
usblp->writeurb.transfer_buffer_length = 0; usblp->writeurb->transfer_buffer_length = 0;
usblp->writeurb.status = 0; usblp->writeurb->status = 0;
usblp->wcomplete = 1; /* we begin writeable */ usblp->wcomplete = 1; /* we begin writeable */
usblp->rcomplete = 0; usblp->rcomplete = 0;
if (usblp->bidir) { if (usblp->bidir) {
usblp->readcount = 0; usblp->readcount = 0;
usblp->readurb.dev = usblp->dev; usblp->readurb->dev = usblp->dev;
if (usb_submit_urb(&usblp->readurb, GFP_KERNEL) < 0) { if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0) {
retval = -EIO; retval = -EIO;
usblp->used = 0; usblp->used = 0;
file->private_data = NULL; file->private_data = NULL;
...@@ -278,8 +278,10 @@ static void usblp_cleanup (struct usblp *usblp) ...@@ -278,8 +278,10 @@ static void usblp_cleanup (struct usblp *usblp)
usblp_table [usblp->minor] = NULL; usblp_table [usblp->minor] = NULL;
info ("usblp%d: removed", usblp->minor); info ("usblp%d: removed", usblp->minor);
kfree (usblp->writeurb.transfer_buffer); kfree (usblp->writeurb->transfer_buffer);
kfree (usblp->device_id_string); kfree (usblp->device_id_string);
usb_free_urb(usblp->writeurb);
usb_free_urb(usblp->readurb);
kfree (usblp); kfree (usblp);
} }
...@@ -292,8 +294,8 @@ static int usblp_release(struct inode *inode, struct file *file) ...@@ -292,8 +294,8 @@ static int usblp_release(struct inode *inode, struct file *file)
usblp->used = 0; usblp->used = 0;
if (usblp->dev) { if (usblp->dev) {
if (usblp->bidir) if (usblp->bidir)
usb_unlink_urb(&usblp->readurb); usb_unlink_urb(usblp->readurb);
usb_unlink_urb(&usblp->writeurb); usb_unlink_urb(usblp->writeurb);
up(&usblp->sem); up(&usblp->sem);
} else /* finish cleanup from disconnect */ } else /* finish cleanup from disconnect */
usblp_cleanup (usblp); usblp_cleanup (usblp);
...@@ -306,8 +308,8 @@ static unsigned int usblp_poll(struct file *file, struct poll_table_struct *wait ...@@ -306,8 +308,8 @@ static unsigned int usblp_poll(struct file *file, struct poll_table_struct *wait
{ {
struct usblp *usblp = file->private_data; struct usblp *usblp = file->private_data;
poll_wait(file, &usblp->wait, wait); poll_wait(file, &usblp->wait, wait);
return ((!usblp->bidir || usblp->readurb.status == -EINPROGRESS) ? 0 : POLLIN | POLLRDNORM) return ((!usblp->bidir || usblp->readurb->status == -EINPROGRESS) ? 0 : POLLIN | POLLRDNORM)
| (usblp->writeurb.status == -EINPROGRESS ? 0 : POLLOUT | POLLWRNORM); | (usblp->writeurb->status == -EINPROGRESS ? 0 : POLLOUT | POLLWRNORM);
} }
static int usblp_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) static int usblp_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
...@@ -423,12 +425,12 @@ static ssize_t usblp_write(struct file *file, const char *buffer, size_t count, ...@@ -423,12 +425,12 @@ static ssize_t usblp_write(struct file *file, const char *buffer, size_t count,
return -ENODEV; return -ENODEV;
} }
if (usblp->writeurb.status != 0) { if (usblp->writeurb->status != 0) {
if (usblp->quirks & USBLP_QUIRK_BIDIR) { if (usblp->quirks & USBLP_QUIRK_BIDIR) {
if (!usblp->wcomplete) if (!usblp->wcomplete)
err("usblp%d: error %d writing to printer", err("usblp%d: error %d writing to printer",
usblp->minor, usblp->writeurb.status); usblp->minor, usblp->writeurb->status);
err = usblp->writeurb.status; err = usblp->writeurb->status;
} else } else
err = usblp_check_status(usblp, err); err = usblp_check_status(usblp, err);
up (&usblp->sem); up (&usblp->sem);
...@@ -440,23 +442,23 @@ static ssize_t usblp_write(struct file *file, const char *buffer, size_t count, ...@@ -440,23 +442,23 @@ static ssize_t usblp_write(struct file *file, const char *buffer, size_t count,
continue; continue;
} }
writecount += usblp->writeurb.transfer_buffer_length; writecount += usblp->writeurb->transfer_buffer_length;
usblp->writeurb.transfer_buffer_length = 0; usblp->writeurb->transfer_buffer_length = 0;
if (writecount == count) { if (writecount == count) {
up (&usblp->sem); up (&usblp->sem);
break; break;
} }
usblp->writeurb.transfer_buffer_length = (count - writecount) < USBLP_BUF_SIZE ? usblp->writeurb->transfer_buffer_length = (count - writecount) < USBLP_BUF_SIZE ?
(count - writecount) : USBLP_BUF_SIZE; (count - writecount) : USBLP_BUF_SIZE;
if (copy_from_user(usblp->writeurb.transfer_buffer, buffer + writecount, if (copy_from_user(usblp->writeurb->transfer_buffer, buffer + writecount,
usblp->writeurb.transfer_buffer_length)) return -EFAULT; usblp->writeurb->transfer_buffer_length)) return -EFAULT;
usblp->writeurb.dev = usblp->dev; usblp->writeurb->dev = usblp->dev;
usblp->wcomplete = 0; usblp->wcomplete = 0;
if (usb_submit_urb(&usblp->writeurb, GFP_KERNEL)) { if (usb_submit_urb(usblp->writeurb, GFP_KERNEL)) {
count = -EIO; count = -EIO;
up (&usblp->sem); up (&usblp->sem);
break; break;
...@@ -516,29 +518,29 @@ static ssize_t usblp_read(struct file *file, char *buffer, size_t count, loff_t ...@@ -516,29 +518,29 @@ static ssize_t usblp_read(struct file *file, char *buffer, size_t count, loff_t
goto done; goto done;
} }
if (usblp->readurb.status) { if (usblp->readurb->status) {
err("usblp%d: error %d reading from printer", err("usblp%d: error %d reading from printer",
usblp->minor, usblp->readurb.status); usblp->minor, usblp->readurb->status);
usblp->readurb.dev = usblp->dev; usblp->readurb->dev = usblp->dev;
usblp->readcount = 0; usblp->readcount = 0;
usb_submit_urb(&usblp->readurb, GFP_KERNEL); usb_submit_urb(usblp->readurb, GFP_KERNEL);
count = -EIO; count = -EIO;
goto done; goto done;
} }
count = count < usblp->readurb.actual_length - usblp->readcount ? count = count < usblp->readurb->actual_length - usblp->readcount ?
count : usblp->readurb.actual_length - usblp->readcount; count : usblp->readurb->actual_length - usblp->readcount;
if (copy_to_user(buffer, usblp->readurb.transfer_buffer + usblp->readcount, count)) { if (copy_to_user(buffer, usblp->readurb->transfer_buffer + usblp->readcount, count)) {
count = -EFAULT; count = -EFAULT;
goto done; goto done;
} }
if ((usblp->readcount += count) == usblp->readurb.actual_length) { if ((usblp->readcount += count) == usblp->readurb->actual_length) {
usblp->readcount = 0; usblp->readcount = 0;
usblp->readurb.dev = usblp->dev; usblp->readurb->dev = usblp->dev;
usblp->rcomplete = 0; usblp->rcomplete = 0;
if (usb_submit_urb(&usblp->readurb, GFP_KERNEL)) { if (usb_submit_urb(usblp->readurb, GFP_KERNEL)) {
count = -EIO; count = -EIO;
goto done; goto done;
} }
...@@ -668,24 +670,42 @@ static void *usblp_probe(struct usb_device *dev, unsigned int ifnum, ...@@ -668,24 +670,42 @@ static void *usblp_probe(struct usb_device *dev, unsigned int ifnum,
init_waitqueue_head(&usblp->wait); init_waitqueue_head(&usblp->wait);
usblp->writeurb = usb_alloc_urb(0, GFP_KERNEL);
if (!usblp->writeurb) {
err("out of memory");
kfree(usblp);
return NULL;
}
usblp->readurb = usb_alloc_urb(0, GFP_KERNEL);
if (!usblp->readurb) {
err("out of memory");
usb_free_urb(usblp->writeurb);
kfree(usblp);
return NULL;
}
if (!(buf = kmalloc(USBLP_BUF_SIZE * (bidir ? 2 : 1), GFP_KERNEL))) { if (!(buf = kmalloc(USBLP_BUF_SIZE * (bidir ? 2 : 1), GFP_KERNEL))) {
err("out of memory"); err("out of memory");
usb_free_urb(usblp->writeurb);
usb_free_urb(usblp->readurb);
kfree(usblp); kfree(usblp);
return NULL; return NULL;
} }
if (!(usblp->device_id_string = kmalloc(DEVICE_ID_SIZE, GFP_KERNEL))) { if (!(usblp->device_id_string = kmalloc(DEVICE_ID_SIZE, GFP_KERNEL))) {
err("out of memory"); err("out of memory");
usb_free_urb(usblp->writeurb);
usb_free_urb(usblp->readurb);
kfree(usblp); kfree(usblp);
kfree(buf); kfree(buf);
return NULL; return NULL;
} }
FILL_BULK_URB(&usblp->writeurb, dev, usb_sndbulkpipe(dev, epwrite->bEndpointAddress), FILL_BULK_URB(usblp->writeurb, dev, usb_sndbulkpipe(dev, epwrite->bEndpointAddress),
buf, 0, usblp_bulk_write, usblp); buf, 0, usblp_bulk_write, usblp);
if (bidir) if (bidir)
FILL_BULK_URB(&usblp->readurb, dev, usb_rcvbulkpipe(dev, epread->bEndpointAddress), FILL_BULK_URB(usblp->readurb, dev, usb_rcvbulkpipe(dev, epread->bEndpointAddress),
buf + USBLP_BUF_SIZE, USBLP_BUF_SIZE, usblp_bulk_read, usblp); buf + USBLP_BUF_SIZE, USBLP_BUF_SIZE, usblp_bulk_read, usblp);
/* Get the device_id string if possible. FIXME: Could make this kmalloc(length). */ /* Get the device_id string if possible. FIXME: Could make this kmalloc(length). */
...@@ -737,9 +757,9 @@ static void usblp_disconnect(struct usb_device *dev, void *ptr) ...@@ -737,9 +757,9 @@ static void usblp_disconnect(struct usb_device *dev, void *ptr)
lock_kernel(); lock_kernel();
usblp->dev = NULL; usblp->dev = NULL;
usb_unlink_urb(&usblp->writeurb); usb_unlink_urb(usblp->writeurb);
if (usblp->bidir) if (usblp->bidir)
usb_unlink_urb(&usblp->readurb); usb_unlink_urb(usblp->readurb);
if (!usblp->used) if (!usblp->used)
usblp_cleanup (usblp); usblp_cleanup (usblp);
......
drivers/usb/serial/ir-usb.c
View file @ 0a8d2a86
/* /*
* USB IR Dongle driver * USB IR Dongle driver
* *
* Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001-2002 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2002 Gary Brubaker (xavyer@ix.netcom.com) * Copyright (C) 2002 Gary Brubaker (xavyer@ix.netcom.com)
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
...@@ -21,6 +21,11 @@ ...@@ -21,6 +21,11 @@
* *
* See Documentation/usb/usb-serial.txt for more information on using this driver * See Documentation/usb/usb-serial.txt for more information on using this driver
* *
* 2002_Mar_07 greg kh
* moved some needed structures and #define values from the
* net/irda/irda-usb.h file into our file, as we don't want to depend on
* that codebase compiling correctly :)
*
* 2002_Jan_14 gb * 2002_Jan_14 gb
* Added module parameter to force specific number of XBOFs. * Added module parameter to force specific number of XBOFs.
* Added ir_xbof_change(). * Added ir_xbof_change().
...@@ -56,7 +61,6 @@ ...@@ -56,7 +61,6 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/usb.h> #include <linux/usb.h>
#include <net/irda/irda-usb.h>
#ifdef CONFIG_USB_SERIAL_DEBUG #ifdef CONFIG_USB_SERIAL_DEBUG
static int debug = 1; static int debug = 1;
...@@ -73,6 +77,33 @@ ...@@ -73,6 +77,33 @@
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>" #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
#define DRIVER_DESC "USB IR Dongle driver" #define DRIVER_DESC "USB IR Dongle driver"
/* USB IrDA class spec information */
#define USB_CLASS_IRDA 0x02
#define USB_DT_IRDA 0x21
#define IU_REQ_GET_CLASS_DESC 0x06
#define SPEED_2400 0x01
#define SPEED_9600 0x02
#define SPEED_19200 0x03
#define SPEED_38400 0x04
#define SPEED_57600 0x05
#define SPEED_115200 0x06
#define SPEED_576000 0x07
#define SPEED_1152000 0x08
#define SPEED_4000000 0x09
struct irda_class_desc {
u8 bLength;
u8 bDescriptorType;
u16 bcdSpecRevision;
u8 bmDataSize;
u8 bmWindowSize;
u8 bmMinTurnaroundTime;
u16 wBaudRate;
u8 bmAdditionalBOFs;
u8 bIrdaRateSniff;
u8 bMaxUnicastList;
} __attribute__ ((packed));
/* if overridden by the user, then use their value for the size of the read and /* if overridden by the user, then use their value for the size of the read and
* write urbs */ * write urbs */
static int buffer_size = 0; static int buffer_size = 0;
...@@ -158,7 +189,7 @@ static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev, ...@@ -158,7 +189,7 @@ static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev,
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0), ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0),
IU_REQ_GET_CLASS_DESC, IU_REQ_GET_CLASS_DESC,
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
0, ifnum, desc, sizeof(*desc), MSECS_TO_JIFFIES(500)); 0, ifnum, desc, sizeof(*desc), HZ);
dbg("%s - ret=%d", __FUNCTION__, ret); dbg("%s - ret=%d", __FUNCTION__, ret);
if (ret < sizeof(*desc)) { if (ret < sizeof(*desc)) {
......
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