aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--kernel/Makefile.am23
-rw-r--r--kernel/mpio.c638
2 files changed, 0 insertions, 661 deletions
diff --git a/kernel/Makefile.am b/kernel/Makefile.am
deleted file mode 100644
index b5248f2..0000000
--- a/kernel/Makefile.am
+++ /dev/null
@@ -1,23 +0,0 @@
-INCLUDES=-I@KERNEL_INCLUDE@
-KCFLAGS=-D__KERNEL__ -Wall -Wstrict-prototypes -O2 \
- -fomit-frame-pointer -pipe -DMODULE
-
-EXTRA_DIST=mpio.c
-
-all: @MPIO_KERNEL@
-
-kernel: mpio.o
-
-mpio.o: mpio.c
- $(CC) -c $(KCFLAGS) $(INCLUDES) $<
-
-clean:
- rm -f mpio.o
-
-distclean:
- rm -f mpio.o
-
-install-data-local:
- @test -n "@MODULE_PATH@" || exit 0
- $(mkinstalldirs) $(DESTDIR)@MODULE_PATH@
- $(INSTALL_SCRIPT) -m 644 mpio.o $(DESTDIR)@MODULE_PATH@
diff --git a/kernel/mpio.c b/kernel/mpio.c
deleted file mode 100644
index 79c3bad..0000000
--- a/kernel/mpio.c
+++ /dev/null
@@ -1,638 +0,0 @@
-/* -*- linux-c -*- */
-
-/*
- * Driver for USB MPIO
- *
- * Yuji Touya (salmoon@users.sourceforge.net)
- *
- * additions by Markus Germeier (mager@tzi.de):
- * - small adaptions for Kernel 2.4.x support
- * - find endpoints automagically (needed for newer players)
- * - added ID for VirginPulse branded players
- *
- * 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>
-#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
-# define MODVERSIONS
-#endif
-#if defined(MODVERSIONS) && !defined(__GENKSYMS__)
-# include <linux/modversions.h>
-#endif
-#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>
-#include <linux/devfs_fs_kernel.h>
-
-#ifdef CONFIG_USB_DEBUG
-# define DEBUG
-#else
-# undef DEBUG
-#endif
-
-/*
- * Version Information
- */
-#define DRIVER_VERSION "0.7.0"
-#define DRIVER_AUTHOR "Yuji Touya <salmoon@users.sourceforge.net>"
-#define DRIVER_DESC "USB MPIO driver"
-
-#define MPIO_MINOR 70
-
-/* stall/wait timeout for mpio */
-#define NAK_TIMEOUT (HZ)
-
-/* Size of the mpio buffer */
-#define IBUF_SIZE 0x10000 /* enough? :salmoon */
-#define OBUF_SIZE 0x10000 /* enough? :salmoon */
-
-struct mpio_usb_data {
- struct usb_device *mpio_dev; /* init: probe_mpio */
- devfs_handle_t devfs; /* devfs device */
- 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 */
-};
-
-extern devfs_handle_t usb_devfs_handle; /* /dev/usb dir. */
-
-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,
- mpio->bulk_out_ep),
- 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 = 5;
- 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,
- mpio->bulk_in_ep),
- 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;
-}
-
-static struct
-file_operations usb_mpio_fops = {
- read: read_mpio,
- write: write_mpio,
-/* ioctl: ioctl_mpio, */
- open: open_mpio,
- release: close_mpio,
-};
-
-#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;
- struct usb_interface_descriptor *as;
- struct usb_endpoint_descriptor *ep;
- int i;
-
- if (dev->descriptor.idVendor != 0x2735 /* Digit@lway */ ) {
- return NULL;
- }
-
- if ((dev->descriptor.idProduct != 0x1 /* MPIO all models??? */ )
- /* Virgin VP-01 (FY100 clone),
- probably all VirginPulse/MPIO players */
- && (dev->descriptor.idProduct != 0x71)) {
- warn(KERN_INFO "MPIO player model not supported/tested.");
- return NULL;
- }
-
- info("USB MPIO found at address %d", dev->devnum);
- if (dev->descriptor.idProduct == 0x71)
- info("player is a VirginPulse branded player");
-
- as = dev->config->interface->altsetting;
- mpio->bulk_in_ep = mpio->bulk_out_ep = 0;
-
- for (i = 0 ; i < as->bNumEndpoints; i++) {
- ep = &as->endpoint[i];
- info("USB endpoint #%d (Addr:%02x, Attr:%02x)", i,
- ep->bEndpointAddress, ep->bmAttributes);
- if (ep->bmAttributes == 2) {
- if (ep->bEndpointAddress & USB_DIR_IN) {
- info("FOUND incoming USB endpoint (%02x)", ep->bEndpointAddress);
- mpio->bulk_in_ep = ep->bEndpointAddress & ~(USB_DIR_IN);
- } else {
- info("FOUND outgoing USB endpoint (%02x)", ep->bEndpointAddress);
- mpio->bulk_out_ep = ep->bEndpointAddress;
- }
- }
- }
-
- if (!(mpio->bulk_out_ep && mpio->bulk_in_ep)) {
- info("Did not find USB bulk endpoints");
- return NULL;
- }
-
-#ifdef DEBUG
- usb_show_device(dev); /* Show device info */
-#endif
- 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);
-
- mpio->devfs = devfs_register(usb_devfs_handle, "mpio",
- DEVFS_FL_DEFAULT, USB_MAJOR,
- MPIO_MINOR,
- S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP |
- S_IWGRP, &usb_mpio_fops, NULL);
- if (mpio->devfs == NULL)
- dbg("probe_mpio: device node registration failed");
-
- 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;
-
- devfs_unregister(mpio->devfs);
-
- 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;
-}
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-static struct usb_device_id mpio_table [] = {
- { USB_DEVICE(0x2735, 1) }, /* MPIO-* (all models?) */
- { USB_DEVICE(0x2735, 0x71) }, /* Virgin VP-01 (FY100?) */
- { } /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE (usb, mpio_table);
-#endif
-
-static struct usb_driver mpio_driver = {
- name: "mpio",
- probe: probe_mpio,
- disconnect: disconnect_mpio,
- fops: &usb_mpio_fops,
- minor: MPIO_MINOR,
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- id_table: mpio_table,
-#endif
-};
-
-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);
-
-
-}
-
-#ifdef DEBUG
-/* ---------- 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 (struct urb * 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 ---------- */
-#endif /* DEBUG */
-
-module_init(usb_mpio_init);
-module_exit(usb_mpio_cleanup);
-
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,10)
-MODULE_LICENSE("GPL");
-#endif