diff options
| -rw-r--r-- | kernel/Makefile.am | 23 | ||||
| -rw-r--r-- | kernel/mpio.c | 638 |
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 |