/* * Driver for ST5481 USB ISDN modem * * Author Frode Isaksen * Copyright 2001 by Frode Isaksen * 2001 by Kai Germaschewski * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ /* * TODO: * * b layer1 delay? * hotplug / unregister issues * mod_inc/dec_use_count * unify parts of d/b channel usb handling * file header * avoid copy to isoc buffer? * improve usb delay? * merge l1 state machines? * clean up debug */ #include #include #include #include #include "st5481.h" MODULE_DESCRIPTION("ISDN4Linux: driver for ST5481 USB ISDN adapter"); MODULE_AUTHOR("Frode Isaksen"); MODULE_LICENSE("GPL"); static int protocol = 2; /* EURO-ISDN Default */ module_param(protocol, int, 0); static int number_of_leds = 2; /* 2 LEDs on the adpater default */ module_param(number_of_leds, int, 0); #ifdef CONFIG_HISAX_DEBUG static int debug = 0; module_param(debug, int, 0); #endif int st5481_debug; /* ====================================================================== * registration/deregistration with the USB layer */ /* * This function will be called when the adapter is plugged * into the USB bus. */ static int probe_st5481(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev(intf); struct st5481_adapter *adapter; struct hisax_b_if *b_if[2]; int retval, i; printk(KERN_INFO "st541: found adapter VendorId %04x, ProductId %04x, LEDs %d\n", le16_to_cpu(dev->descriptor.idVendor), le16_to_cpu(dev->descriptor.idProduct), number_of_leds); adapter = kzalloc(sizeof(struct st5481_adapter), GFP_KERNEL); if (!adapter) return -ENOMEM; adapter->number_of_leds = number_of_leds; adapter->usb_dev = dev; adapter->hisax_d_if.owner = THIS_MODULE; adapter->hisax_d_if.ifc.priv = adapter; adapter->hisax_d_if.ifc.l2l1 = st5481_d_l2l1; for (i = 0; i < 2; i++) { adapter->bcs[i].adapter = adapter; adapter->bcs[i].channel = i; adapter->bcs[i].b_if.ifc.priv = &adapter->bcs[i]; adapter->bcs[i].b_if.ifc.l2l1 = st5481_b_l2l1; } retval = st5481_setup_usb(adapter); if (retval < 0) goto err; retval = st5481_setup_d(adapter); if (retval < 0) goto err_usb; retval = st5481_setup_b(&adapter->bcs[0]); if (retval < 0) goto err_d; retval = st5481_setup_b(&adapter->bcs[1]); if (retval < 0) goto err_b; for (i = 0; i < 2; i++) b_if[i] = &adapter->bcs[i].b_if; if (hisax_register(&adapter->hisax_d_if, b_if, "st5481_usb", protocol) != 0) goto err_b1; st5481_start(adapter); usb_set_intfdata(intf, adapter); return 0; err_b1: st5481_release_b(&adapter->bcs[1]); err_b: st5481_release_b(&adapter->bcs[0]); err_d: st5481_release_d(adapter); err_usb: st5481_release_usb(adapter); err: kfree(adapter); return -EIO; } /* * This function will be called when the adapter is removed * from the USB bus. */ static void disconnect_st5481(struct usb_interface *intf) { struct st5481_adapter *adapter = usb_get_intfdata(intf); DBG(1, ""); usb_set_intfdata(intf, NULL); if (!adapter) return; st5481_stop(adapter); st5481_release_b(&adapter->bcs[1]); st5481_release_b(&adapter->bcs[0]); st5481_release_d(adapter); // we would actually better wait for completion of outstanding urbs mdelay(2); st5481_release_usb(adapter); hisax_unregister(&adapter->hisax_d_if); kfree(adapter); } /* * The last 4 bits in the Product Id is set with 4 pins on the chip. */ static struct usb_device_id st5481_ids[] = { { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x0) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x1) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x2) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x3) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x4) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x5) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x6) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x7) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x8) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0x9) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xA) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xB) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xC) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xD) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xE) }, { USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID + 0xF) }, { } }; MODULE_DEVICE_TABLE(usb, st5481_ids); static struct usb_driver st5481_usb_driver = { .name = "st5481_usb", .probe = probe_st5481, .disconnect = disconnect_st5481, .id_table = st5481_ids, }; static int __init st5481_usb_init(void) { int retval; #ifdef CONFIG_HISAX_DEBUG st5481_debug = debug; #endif printk(KERN_INFO "hisax_st5481: ST5481 USB ISDN driver $Revision: 2.4.2.3 $\n"); retval = st5481_d_init(); if (retval < 0) goto out; retval = usb_register(&st5481_usb_driver); if (retval < 0) goto out_d_exit; return 0; out_d_exit: st5481_d_exit(); out: return retval; } static void __exit st5481_usb_exit(void) { usb_deregister(&st5481_usb_driver); st5481_d_exit(); } module_init(st5481_usb_init); module_exit(st5481_usb_exit);