diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/Makefile.am | 13 | ||||
| -rw-r--r-- | kernel/Makefile.in | 327 | ||||
| -rw-r--r-- | kernel/mpio.c | 570 |
3 files changed, 910 insertions, 0 deletions
diff --git a/kernel/Makefile.am b/kernel/Makefile.am new file mode 100644 index 0000000..ba6402f --- /dev/null +++ b/kernel/Makefile.am @@ -0,0 +1,13 @@ +INCLUDES=-I/usr/src/linux/include +KCFLAGS=-D__KERNEL__ -I$(INCLUDE) -Wall -Wstrict-prototypes -O2 \ + -fomit-frame-pointer -pipe -DMODULE + +bin_PROGRAMS=mpio.o + +mpio_o_SOURCES=mpio.c + +all: mpio.o + +mpio.o: mpio.c + $(CC) -c $(KCFLAGS) $(INCLUDES) $< + diff --git a/kernel/Makefile.in b/kernel/Makefile.in new file mode 100644 index 0000000..f3ac5dc --- /dev/null +++ b/kernel/Makefile.in @@ -0,0 +1,327 @@ +# Makefile.in generated automatically by automake 1.4-p5 from Makefile.am + +# Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + + +SHELL = @SHELL@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ + +bindir = @bindir@ +sbindir = @sbindir@ +libexecdir = @libexecdir@ +datadir = @datadir@ +sysconfdir = @sysconfdir@ +sharedstatedir = @sharedstatedir@ +localstatedir = @localstatedir@ +libdir = @libdir@ +infodir = @infodir@ +mandir = @mandir@ +includedir = @includedir@ +oldincludedir = /usr/include + +DESTDIR = + +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ + +top_builddir = .. + +ACLOCAL = @ACLOCAL@ +AUTOCONF = @AUTOCONF@ +AUTOMAKE = @AUTOMAKE@ +AUTOHEADER = @AUTOHEADER@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ $(AM_INSTALL_PROGRAM_FLAGS) +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +transform = @program_transform_name@ + +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_alias = @build_alias@ +build_triplet = @build@ +host_alias = @host_alias@ +host_triplet = @host@ +target_alias = @target_alias@ +target_triplet = @target@ +AS = @AS@ +CC = @CC@ +DLLTOOL = @DLLTOOL@ +ECHO = @ECHO@ +EXEEXT = @EXEEXT@ +HAVE_GETOPT_H = @HAVE_GETOPT_H@ +LIBTOOL = @LIBTOOL@ +LN_S = @LN_S@ +MAKEINFO = @MAKEINFO@ +OBJDUMP = @OBJDUMP@ +OBJEXT = @OBJEXT@ +PACKAGE = @PACKAGE@ +RANLIB = @RANLIB@ +STRIP = @STRIP@ +VERSION = @VERSION@ + +INCLUDES = -I/usr/src/linux/include +KCFLAGS = -D__KERNEL__ -I$(INCLUDE) -Wall -Wstrict-prototypes -O2 \ + -fomit-frame-pointer -pipe -DMODULE + + +bin_PROGRAMS = mpio.o + +mpio_o_SOURCES = mpio.c +mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs +CONFIG_CLEAN_FILES = +bin_PROGRAMS = mpio.o +PROGRAMS = $(bin_PROGRAMS) + + +DEFS = @DEFS@ -I. -I$(srcdir) +CPPFLAGS = @CPPFLAGS@ +LDFLAGS = @LDFLAGS@ +LIBS = @LIBS@ +mpio_o_OBJECTS = mpio.$(OBJEXT) +mpio_o_LDADD = $(LDADD) +mpio_o_DEPENDENCIES = +mpio_o_LDFLAGS = +CFLAGS = @CFLAGS@ +COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ +DIST_COMMON = Makefile.am Makefile.in + + +DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST) + +TAR = gtar +GZIP_ENV = --best +SOURCES = $(mpio_o_SOURCES) +OBJECTS = $(mpio_o_OBJECTS) + +all: all-redirect +.SUFFIXES: +.SUFFIXES: .S .c .lo .o .obj .s +$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) + cd $(top_srcdir) && $(AUTOMAKE) --gnu --include-deps kernel/Makefile + +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status + + +mostlyclean-binPROGRAMS: + +clean-binPROGRAMS: + -test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS) + +distclean-binPROGRAMS: + +maintainer-clean-binPROGRAMS: + +install-binPROGRAMS: $(bin_PROGRAMS) + @$(NORMAL_INSTALL) + $(mkinstalldirs) $(DESTDIR)$(bindir) + @list='$(bin_PROGRAMS)'; for p in $$list; do \ + if test -f $$p; then \ + echo " $(LIBTOOL) --mode=install $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`"; \ + $(LIBTOOL) --mode=install $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`; \ + else :; fi; \ + done + +uninstall-binPROGRAMS: + @$(NORMAL_UNINSTALL) + list='$(bin_PROGRAMS)'; for p in $$list; do \ + rm -f $(DESTDIR)$(bindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`; \ + done + +.c.o: + $(COMPILE) -c $< + +# FIXME: We should only use cygpath when building on Windows, +# and only if it is available. +.c.obj: + $(COMPILE) -c `cygpath -w $<` + +.s.o: + $(COMPILE) -c $< + +.S.o: + $(COMPILE) -c $< + +mostlyclean-compile: + -rm -f *.o core *.core + -rm -f *.$(OBJEXT) + +clean-compile: + +distclean-compile: + -rm -f *.tab.c + +maintainer-clean-compile: + +.c.lo: + $(LIBTOOL) --mode=compile $(COMPILE) -c $< + +.s.lo: + $(LIBTOOL) --mode=compile $(COMPILE) -c $< + +.S.lo: + $(LIBTOOL) --mode=compile $(COMPILE) -c $< + +mostlyclean-libtool: + -rm -f *.lo + +clean-libtool: + -rm -rf .libs _libs + +distclean-libtool: + +maintainer-clean-libtool: + +tags: TAGS + +ID: $(HEADERS) $(SOURCES) $(LISP) + list='$(SOURCES) $(HEADERS)'; \ + unique=`for i in $$list; do echo $$i; done | \ + awk ' { files[$$0] = 1; } \ + END { for (i in files) print i; }'`; \ + here=`pwd` && cd $(srcdir) \ + && mkid -f$$here/ID $$unique $(LISP) + +TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) $(LISP) + tags=; \ + here=`pwd`; \ + list='$(SOURCES) $(HEADERS)'; \ + unique=`for i in $$list; do echo $$i; done | \ + awk ' { files[$$0] = 1; } \ + END { for (i in files) print i; }'`; \ + test -z "$(ETAGS_ARGS)$$unique$(LISP)$$tags" \ + || (cd $(srcdir) && etags $(ETAGS_ARGS) $$tags $$unique $(LISP) -o $$here/TAGS) + +mostlyclean-tags: + +clean-tags: + +distclean-tags: + -rm -f TAGS ID + +maintainer-clean-tags: + +distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) + +subdir = kernel + +distdir: $(DISTFILES) + @for file in $(DISTFILES); do \ + d=$(srcdir); \ + if test -d $$d/$$file; then \ + cp -pr $$d/$$file $(distdir)/$$file; \ + else \ + test -f $(distdir)/$$file \ + || ln $$d/$$file $(distdir)/$$file 2> /dev/null \ + || cp -p $$d/$$file $(distdir)/$$file || :; \ + fi; \ + done +mpio.o: mpio.c + +info-am: +info: info-am +dvi-am: +dvi: dvi-am +check-am: all-am +check: check-am +installcheck-am: +installcheck: installcheck-am +install-exec-am: install-binPROGRAMS +install-exec: install-exec-am + +install-data-am: +install-data: install-data-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am +install: install-am +uninstall-am: uninstall-binPROGRAMS +uninstall: uninstall-am +all-am: Makefile $(PROGRAMS) +all-redirect: all-am +install-strip: + $(MAKE) $(AM_MAKEFLAGS) AM_INSTALL_PROGRAM_FLAGS=-s install +installdirs: + $(mkinstalldirs) $(DESTDIR)$(bindir) + + +mostlyclean-generic: + +clean-generic: + +distclean-generic: + -rm -f Makefile $(CONFIG_CLEAN_FILES) + -rm -f config.cache config.log stamp-h stamp-h[0-9]* + +maintainer-clean-generic: +mostlyclean-am: mostlyclean-binPROGRAMS mostlyclean-compile \ + mostlyclean-libtool mostlyclean-tags \ + mostlyclean-generic + +mostlyclean: mostlyclean-am + +clean-am: clean-binPROGRAMS clean-compile clean-libtool clean-tags \ + clean-generic mostlyclean-am + +clean: clean-am + +distclean-am: distclean-binPROGRAMS distclean-compile distclean-libtool \ + distclean-tags distclean-generic clean-am + -rm -f libtool + +distclean: distclean-am + +maintainer-clean-am: maintainer-clean-binPROGRAMS \ + maintainer-clean-compile maintainer-clean-libtool \ + maintainer-clean-tags maintainer-clean-generic \ + distclean-am + @echo "This command is intended for maintainers to use;" + @echo "it deletes files that may require special tools to rebuild." + +maintainer-clean: maintainer-clean-am + +.PHONY: mostlyclean-binPROGRAMS distclean-binPROGRAMS clean-binPROGRAMS \ +maintainer-clean-binPROGRAMS uninstall-binPROGRAMS install-binPROGRAMS \ +mostlyclean-compile distclean-compile clean-compile \ +maintainer-clean-compile mostlyclean-libtool distclean-libtool \ +clean-libtool maintainer-clean-libtool tags mostlyclean-tags \ +distclean-tags clean-tags maintainer-clean-tags distdir info-am info \ +dvi-am dvi check check-am installcheck-am installcheck install-exec-am \ +install-exec install-data-am install-data install-am install \ +uninstall-am uninstall all-redirect all-am all installdirs \ +mostlyclean-generic distclean-generic clean-generic \ +maintainer-clean-generic clean mostlyclean distclean maintainer-clean + + +all: mpio.o + +mpio.o: mpio.c + $(CC) -c $(KCFLAGS) $(INCLUDES) $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/kernel/mpio.c b/kernel/mpio.c new file mode 100644 index 0000000..b9071b7 --- /dev/null +++ b/kernel/mpio.c @@ -0,0 +1,570 @@ +/* -*- linux-c -*- */ + +/* + * Driver for USB MPIO-DMG + * + * Yuji Touya (salmoon@users.sourceforge.net) + * + * small adaptions for Kernel 2.4.x support by + * Markus Germeier (mager@tzi.de) + * + * based on rio500.c by Cesar Miquel (miquel@df.uba.ar) + * + * 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 Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * */ +#include <linux/config.h> +#include <linux/version.h> +#include <linux/mm.h> + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/signal.h> +#include <linux/sched.h> +#include <linux/errno.h> +#include <linux/miscdevice.h> +#include <linux/random.h> +#include <linux/poll.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <linux/smp_lock.h> + +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#else +# undef DEBUG +#endif + +/* + * Version Information + */ +#define DRIVER_VERSION "v0.1a-pre1" +#define DRIVER_AUTHOR "Yuji Touya <salmoon@users.sourceforge.net>" +#define DRIVER_DESC "USB MPIO-DMG driver" + +#define MPIO_MINOR 70 + +/* stall/wait timeout for mpio */ +#define NAK_TIMEOUT (HZ) + +/* Size of the mpio buffer */ +#define IBUF_SIZE 0x10000 +#define OBUF_SIZE 0x10000 + +struct mpio_usb_data { + struct usb_device *mpio_dev; /* init: probe_mpio */ + unsigned int ifnum; /* Interface number of the USB device */ + int isopen; /* nz if open */ + int present; /* Device is present on the bus */ + char *obuf, *ibuf; /* transfer buffers */ + char bulk_in_ep, bulk_out_ep; /* Endpoint assignments */ + wait_queue_head_t wait_q; /* for timeouts */ + struct semaphore lock; /* general race avoidance */ +}; + +static struct mpio_usb_data mpio_instance; + +static int open_mpio(struct inode *inode, struct file *file) +{ + struct mpio_usb_data *mpio = &mpio_instance; + + lock_kernel(); + + if (mpio->isopen || !mpio->present) { + unlock_kernel(); + return -EBUSY; + } + mpio->isopen = 1; + + init_waitqueue_head(&mpio->wait_q); + + MOD_INC_USE_COUNT; + + unlock_kernel(); + + info("MPIO opened."); + + return 0; +} + +static int close_mpio(struct inode *inode, struct file *file) +{ + struct mpio_usb_data *mpio = &mpio_instance; + + mpio->isopen = 0; + + MOD_DEC_USE_COUNT; + + info("MPIO closed."); + return 0; +} + +static ssize_t +write_mpio(struct file *file, const char *buffer, size_t count, loff_t * ppos) +{ + struct mpio_usb_data *mpio = &mpio_instance; + + unsigned long copy_size; + unsigned long bytes_written = 0; + unsigned int partial; + + int result = 0; + int maxretry; + int errn = 0; + + /* Sanity check to make sure mpio is connected, powered, etc */ + if ( mpio == NULL || + mpio->present == 0 || + mpio->mpio_dev == NULL ) + return -1; + + down(&(mpio->lock)); + + do { + unsigned long thistime; + char *obuf = mpio->obuf; + + thistime = copy_size = + (count >= OBUF_SIZE) ? OBUF_SIZE : count; + if (copy_from_user(mpio->obuf, buffer, copy_size)) { + errn = -EFAULT; + goto error; + } + maxretry = 5; + while (thistime) { + if (!mpio->mpio_dev) { + errn = -ENODEV; + goto error; + } + if (signal_pending(current)) { + errn = bytes_written ? bytes_written : -EINTR; + goto error; + } + + result = + usb_bulk_msg(mpio->mpio_dev, + usb_sndbulkpipe(mpio->mpio_dev, 1), + obuf, thistime, &partial, 5 * HZ); + + dbg("write stats: result:%d thistime:%lu partial:%u", + result, thistime, partial); + + /* NAK - so hold for a while */ + if (result == USB_ST_TIMEOUT) { + if (!maxretry--) { + errn = -ETIME; + goto error; + } + interruptible_sleep_on_timeout(&mpio-> wait_q, + NAK_TIMEOUT); + continue; + } else if (!result & partial) { + obuf += partial; + thistime -= partial; + } else + break; + }; + if (result) { + err("Write Whoops - %x", result); + errn = -EIO; + goto error; + } + bytes_written += copy_size; + count -= copy_size; + buffer += copy_size; + } while (count > 0); + + errn = bytes_written ? bytes_written : -EIO; + +error: + up(&(mpio->lock)); + return errn; +} + +static ssize_t +read_mpio(struct file *file, char *buffer, size_t count, loff_t * ppos) +{ + struct mpio_usb_data *mpio = &mpio_instance; + ssize_t read_count; + unsigned int partial; + int this_read; + int result; + int maxretry = 10; + char *ibuf = mpio->ibuf; + + /* Sanity check to make sure mpio is connected, powered, etc */ + if ( mpio == NULL || + mpio->present == 0 || + mpio->mpio_dev == NULL ) + return -1; + + read_count = 0; + + down(&(mpio->lock)); + + while (count > 0) { + if (signal_pending(current)) { + up(&(mpio->lock)); + return read_count ? read_count : -EINTR; + } + if (!mpio->mpio_dev) { + up(&(mpio->lock)); + return -ENODEV; + } + this_read = (count >= IBUF_SIZE) ? IBUF_SIZE : count; + + result = usb_bulk_msg(mpio->mpio_dev, + usb_rcvbulkpipe(mpio->mpio_dev, 2), + ibuf, this_read, &partial, + (int) (HZ * 8)); + + dbg(KERN_DEBUG "read stats: result:%d this_read:%u partial:%u", + result, this_read, partial); + + if (partial) { + count = this_read = partial; + + } else if (result == USB_ST_TIMEOUT || result == 15) { /* FIXME: 15 ? */ + if (!maxretry--) { + up(&(mpio->lock)); + err("read_mpio: maxretry timeout"); + return -ETIME; + } + interruptible_sleep_on_timeout(&mpio->wait_q, + NAK_TIMEOUT); + continue; + } else if (result != USB_ST_DATAUNDERRUN) { + up(&(mpio->lock)); + err("Read Whoops - result:%u partial:%u this_read:%u", + result, partial, this_read); + return -EIO; + } else { + up(&(mpio->lock)); + return (0); + } + + if (this_read) { + if (copy_to_user(buffer, ibuf, this_read)) { + up(&(mpio->lock)); + return -EFAULT; + } + count -= this_read; + read_count += this_read; + buffer += this_read; + } + } + up(&(mpio->lock)); + return read_count; +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) /* Hmm, .... */ +static void *probe_mpio(struct usb_device *dev, unsigned int ifnum, + const struct usb_device_id *id) +#else +static void *probe_mpio(struct usb_device *dev, unsigned int ifnum) +#endif +{ + struct mpio_usb_data *mpio = &mpio_instance; + + if (dev->descriptor.idVendor != 0x2735 /* Digit@lway */ ) { + return NULL; + } + + if (dev->descriptor.idProduct != 0x1 /* MPIO-DMG */ ) { + warn(KERN_INFO "MPIO player model not supported/tested."); + return NULL; + } + + info("USB MPIO found at address %d", dev->devnum); + usb_show_device(dev); /* Show device info */ + + mpio->present = 1; + mpio->mpio_dev = dev; + + if (!(mpio->obuf = (char *) kmalloc(OBUF_SIZE, GFP_KERNEL))) { + err("probe_mpio: Not enough memory for the output buffer"); + return NULL; + } + dbg("probe_mpio: obuf address:%p", mpio->obuf); + + if (!(mpio->ibuf = (char *) kmalloc(IBUF_SIZE, GFP_KERNEL))) { + err("probe_mpio: Not enough memory for the input buffer"); + kfree(mpio->obuf); + return NULL; + } + dbg("probe_mpio: ibuf address:%p", mpio->ibuf); + + init_MUTEX(&(mpio->lock)); + + return mpio; +} + +static void disconnect_mpio(struct usb_device *dev, void *ptr) +{ + struct mpio_usb_data *mpio = (struct mpio_usb_data *) ptr; + + if (mpio->isopen) { + mpio->isopen = 0; + /* better let it finish - the release will do whats needed */ + mpio->mpio_dev = NULL; + return; + } + kfree(mpio->ibuf); + kfree(mpio->obuf); + + info("USB MPIO disconnected."); + + mpio->present = 0; +} + +static struct +file_operations usb_mpio_fops = { + read: read_mpio, + write: write_mpio, +/* ioctl: ioctl_mpio, */ + open: open_mpio, + release: close_mpio, +}; + +static struct usb_driver mpio_driver = { + name: "mpio", + probe: probe_mpio, + disconnect: disconnect_mpio, + fops: &usb_mpio_fops, + minor: MPIO_MINOR, +}; + +int usb_mpio_init(void) +{ + if (usb_register(&mpio_driver) < 0) + return -1; + + info("USB MPIO support registered."); + info(DRIVER_VERSION ":" DRIVER_DESC); + + return 0; +} + + +void usb_mpio_cleanup(void) +{ + struct mpio_usb_data *mpio = &mpio_instance; + + mpio->present = 0; + usb_deregister(&mpio_driver); + + +} + + +/* ---------- debugging helpers ----------- */ + +static void usb_show_endpoint(struct usb_endpoint_descriptor *endpoint) +{ + usb_show_endpoint_descriptor(endpoint); +} + +static void usb_show_interface(struct usb_interface_descriptor *altsetting) +{ + int i; + + usb_show_interface_descriptor(altsetting); + + for (i = 0; i < altsetting->bNumEndpoints; i++) + usb_show_endpoint(altsetting->endpoint + i); +} + +static void usb_show_config(struct usb_config_descriptor *config) +{ + int i, j; + struct usb_interface *ifp; + + usb_show_config_descriptor(config); + for (i = 0; i < config->bNumInterfaces; i++) { + ifp = config->interface + i; + + if (!ifp) + break; + + printk("\n Interface: %d\n", i); + for (j = 0; j < ifp->num_altsetting; j++) + usb_show_interface(ifp->altsetting + j); + } +} + +void usb_show_device(struct usb_device *dev) +{ + int i; + + usb_show_device_descriptor(&dev->descriptor); + for (i = 0; i < dev->descriptor.bNumConfigurations; i++) + usb_show_config(dev->config + i); +} + +/* + * Parse and show the different USB descriptors. + */ +void usb_show_device_descriptor(struct usb_device_descriptor *desc) +{ + if (!desc) + { + printk("Invalid USB device descriptor (NULL POINTER)\n"); + return; + } + printk(" Length = %2d%s\n", desc->bLength, + desc->bLength == USB_DT_DEVICE_SIZE ? "" : " (!!!)"); + printk(" DescriptorType = %02x\n", desc->bDescriptorType); + + printk(" USB version = %x.%02x\n", + desc->bcdUSB >> 8, desc->bcdUSB & 0xff); + printk(" Vendor:Product = %04x:%04x\n", + desc->idVendor, desc->idProduct); + printk(" MaxPacketSize0 = %d\n", desc->bMaxPacketSize0); + printk(" NumConfigurations = %d\n", desc->bNumConfigurations); + printk(" Device version = %x.%02x\n", + desc->bcdDevice >> 8, desc->bcdDevice & 0xff); + + printk(" Device Class:SubClass:Protocol = %02x:%02x:%02x\n", + desc->bDeviceClass, desc->bDeviceSubClass, desc->bDeviceProtocol); + switch (desc->bDeviceClass) { + case 0: + printk(" Per-interface classes\n"); + break; + case USB_CLASS_AUDIO: + printk(" Audio device class\n"); + break; + case USB_CLASS_COMM: + printk(" Communications class\n"); + break; + case USB_CLASS_HID: + printk(" Human Interface Devices class\n"); + break; + case USB_CLASS_PRINTER: + printk(" Printer device class\n"); + break; + case USB_CLASS_MASS_STORAGE: + printk(" Mass Storage device class\n"); + break; + case USB_CLASS_HUB: + printk(" Hub device class\n"); + break; + case USB_CLASS_VENDOR_SPEC: + printk(" Vendor class\n"); + break; + default: + printk(" Unknown class\n"); + } +} + +void usb_show_config_descriptor(struct usb_config_descriptor *desc) +{ + printk("Configuration:\n"); + printk(" bLength = %4d%s\n", desc->bLength, + desc->bLength == USB_DT_CONFIG_SIZE ? "" : " (!!!)"); + printk(" bDescriptorType = %02x\n", desc->bDescriptorType); + printk(" wTotalLength = %04x\n", desc->wTotalLength); + printk(" bNumInterfaces = %02x\n", desc->bNumInterfaces); + printk(" bConfigurationValue = %02x\n", desc->bConfigurationValue); + printk(" iConfiguration = %02x\n", desc->iConfiguration); + printk(" bmAttributes = %02x\n", desc->bmAttributes); + printk(" MaxPower = %4dmA\n", desc->MaxPower * 2); +} + +void usb_show_interface_descriptor(struct usb_interface_descriptor *desc) +{ + printk(" Alternate Setting: %2d\n", desc->bAlternateSetting); + printk(" bLength = %4d%s\n", desc->bLength, + desc->bLength == USB_DT_INTERFACE_SIZE ? "" : " (!!!)"); + printk(" bDescriptorType = %02x\n", desc->bDescriptorType); + printk(" bInterfaceNumber = %02x\n", desc->bInterfaceNumber); + printk(" bAlternateSetting = %02x\n", desc->bAlternateSetting); + printk(" bNumEndpoints = %02x\n", desc->bNumEndpoints); + printk(" bInterface Class:SubClass:Protocol = %02x:%02x:%02x\n", + desc->bInterfaceClass, desc->bInterfaceSubClass, desc->bInterfaceProtocol); + printk(" iInterface = %02x\n", desc->iInterface); +} + +void usb_show_endpoint_descriptor(struct usb_endpoint_descriptor *desc) +{ + char *LengthCommentString = (desc->bLength == + USB_DT_ENDPOINT_AUDIO_SIZE) ? " (Audio)" : (desc->bLength == + USB_DT_ENDPOINT_SIZE) ? "" : " (!!!)"; + char *EndpointType[4] = { "Control", "Isochronous", "Bulk", "Interrupt" }; + + printk(" Endpoint:\n"); + printk(" bLength = %4d%s\n", + desc->bLength, LengthCommentString); + printk(" bDescriptorType = %02x\n", desc->bDescriptorType); + printk(" bEndpointAddress = %02x (%s)\n", desc->bEndpointAddress, + (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_CONTROL ? "i/o" : + (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? "in" : "out"); + printk(" bmAttributes = %02x (%s)\n", desc->bmAttributes, + EndpointType[USB_ENDPOINT_XFERTYPE_MASK & desc->bmAttributes]); + printk(" wMaxPacketSize = %04x\n", desc->wMaxPacketSize); + printk(" bInterval = %02x\n", desc->bInterval); + + /* Audio extensions to the endpoint descriptor */ + if (desc->bLength == USB_DT_ENDPOINT_AUDIO_SIZE) { + printk(" bRefresh = %02x\n", desc->bRefresh); + printk(" bSynchAddress = %02x\n", desc->bSynchAddress); + } +} + +void usb_show_string(struct usb_device *dev, char *id, int index) +{ + char *buf; + + if (!index) + return; + if (!(buf = kmalloc(256, GFP_KERNEL))) + return; + if (usb_string(dev, index, buf, 256) > 0) + printk(KERN_INFO "%s: %s\n", id, buf); + kfree(buf); +} + +void usb_dump_urb (purb_t purb) +{ + printk ("urb :%p\n", purb); + printk ("next :%p\n", purb->next); + printk ("dev :%p\n", purb->dev); + printk ("pipe :%08X\n", purb->pipe); + printk ("status :%d\n", purb->status); + printk ("transfer_flags :%08X\n", purb->transfer_flags); + printk ("transfer_buffer :%p\n", purb->transfer_buffer); + printk ("transfer_buffer_length:%d\n", purb->transfer_buffer_length); + printk ("actual_length :%d\n", purb->actual_length); + printk ("setup_packet :%p\n", purb->setup_packet); + printk ("start_frame :%d\n", purb->start_frame); + printk ("number_of_packets :%d\n", purb->number_of_packets); + printk ("interval :%d\n", purb->interval); + printk ("error_count :%d\n", purb->error_count); + printk ("context :%p\n", purb->context); + printk ("complete :%p\n", purb->complete); +} +/* --------- end of helpers ---------- */ + + +module_init(usb_mpio_init); +module_exit(usb_mpio_cleanup); + +MODULE_AUTHOR( DRIVER_AUTHOR ); +MODULE_DESCRIPTION( DRIVER_DESC ); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) /* Hmm, .... */ +MODULE_LICENSE("GPL"); +#endif |