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![Uwe Kleine-König](/assets/img/avatar_default.png)
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
954 lines
25 KiB
C
954 lines
25 KiB
C
/*
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* USB driver for Gigaset 307x directly or using M105 Data.
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*
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* Copyright (c) 2001 by Stefan Eilers
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* and Hansjoerg Lipp <hjlipp@web.de>.
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*
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* This driver was derived from the USB skeleton driver by
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* Greg Kroah-Hartman <greg@kroah.com>
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*
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* =====================================================================
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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* =====================================================================
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*/
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#include "gigaset.h"
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#include <linux/usb.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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/* Version Information */
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#define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers"
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#define DRIVER_DESC "USB Driver for Gigaset 307x using M105"
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/* Module parameters */
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static int startmode = SM_ISDN;
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static int cidmode = 1;
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module_param(startmode, int, S_IRUGO);
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module_param(cidmode, int, S_IRUGO);
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MODULE_PARM_DESC(startmode, "start in isdn4linux mode");
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MODULE_PARM_DESC(cidmode, "Call-ID mode");
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#define GIGASET_MINORS 1
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#define GIGASET_MINOR 8
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#define GIGASET_MODULENAME "usb_gigaset"
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#define GIGASET_DEVNAME "ttyGU"
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/* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */
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#define IF_WRITEBUF 264
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/* Values for the Gigaset M105 Data */
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#define USB_M105_VENDOR_ID 0x0681
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#define USB_M105_PRODUCT_ID 0x0009
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/* table of devices that work with this driver */
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static const struct usb_device_id gigaset_table[] = {
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{ USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, gigaset_table);
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/*
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* Control requests (empty fields: 00)
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*
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* RT|RQ|VALUE|INDEX|LEN |DATA
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* In:
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* C1 08 01
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* Get flags (1 byte). Bits: 0=dtr,1=rts,3-7:?
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* C1 0F ll ll
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* Get device information/status (llll: 0x200 and 0x40 seen).
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* Real size: I only saw MIN(llll,0x64).
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* Contents: seems to be always the same...
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* offset 0x00: Length of this structure (0x64) (len: 1,2,3 bytes)
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* offset 0x3c: String (16 bit chars): "MCCI USB Serial V2.0"
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* rest: ?
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* Out:
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* 41 11
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* Initialize/reset device ?
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* 41 00 xx 00
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* ? (xx=00 or 01; 01 on start, 00 on close)
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* 41 07 vv mm
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* Set/clear flags vv=value, mm=mask (see RQ 08)
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* 41 12 xx
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* Used before the following configuration requests are issued
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* (with xx=0x0f). I've seen other values<0xf, though.
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* 41 01 xx xx
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* Set baud rate. xxxx=ceil(0x384000/rate)=trunc(0x383fff/rate)+1.
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* 41 03 ps bb
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* Set byte size and parity. p: 0x20=even,0x10=odd,0x00=no parity
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* [ 0x30: m, 0x40: s ]
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* [s: 0: 1 stop bit; 1: 1.5; 2: 2]
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* bb: bits/byte (seen 7 and 8)
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* 41 13 -- -- -- -- 10 00 ww 00 00 00 xx 00 00 00 yy 00 00 00 zz 00 00 00
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* ??
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* Initialization: 01, 40, 00, 00
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* Open device: 00 40, 00, 00
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* yy and zz seem to be equal, either 0x00 or 0x0a
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* (ww,xx) pairs seen: (00,00), (00,40), (01,40), (09,80), (19,80)
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* 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13
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* Used after every "configuration sequence" (RQ 12, RQs 01/03/13).
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* xx is usually 0x00 but was 0x7e before starting data transfer
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* in unimodem mode. So, this might be an array of characters that
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* need special treatment ("commit all bufferd data"?), 11=^Q, 13=^S.
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*
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* Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two
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* flags per packet.
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*/
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/* functions called if a device of this driver is connected/disconnected */
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static int gigaset_probe(struct usb_interface *interface,
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const struct usb_device_id *id);
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static void gigaset_disconnect(struct usb_interface *interface);
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/* functions called before/after suspend */
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static int gigaset_suspend(struct usb_interface *intf, pm_message_t message);
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static int gigaset_resume(struct usb_interface *intf);
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static int gigaset_pre_reset(struct usb_interface *intf);
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static struct gigaset_driver *driver;
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/* usb specific object needed to register this driver with the usb subsystem */
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static struct usb_driver gigaset_usb_driver = {
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.name = GIGASET_MODULENAME,
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.probe = gigaset_probe,
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.disconnect = gigaset_disconnect,
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.id_table = gigaset_table,
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.suspend = gigaset_suspend,
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.resume = gigaset_resume,
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.reset_resume = gigaset_resume,
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.pre_reset = gigaset_pre_reset,
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.post_reset = gigaset_resume,
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};
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struct usb_cardstate {
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struct usb_device *udev; /* usb device pointer */
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struct usb_interface *interface; /* interface for this device */
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int busy; /* bulk output in progress */
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/* Output buffer */
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unsigned char *bulk_out_buffer;
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int bulk_out_size;
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__u8 bulk_out_endpointAddr;
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struct urb *bulk_out_urb;
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/* Input buffer */
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unsigned char *rcvbuf;
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int rcvbuf_size;
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struct urb *read_urb;
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__u8 int_in_endpointAddr;
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char bchars[6]; /* for request 0x19 */
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};
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static inline unsigned tiocm_to_gigaset(unsigned state)
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{
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return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0);
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}
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static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
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unsigned new_state)
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{
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struct usb_device *udev = cs->hw.usb->udev;
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unsigned mask, val;
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int r;
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mask = tiocm_to_gigaset(old_state ^ new_state);
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val = tiocm_to_gigaset(new_state);
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gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
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r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41,
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(val & 0xff) | ((mask & 0xff) << 8), 0,
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NULL, 0, 2000 /* timeout? */);
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if (r < 0)
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return r;
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return 0;
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}
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/*
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* Set M105 configuration value
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* using undocumented device commands reverse engineered from USB traces
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* of the Siemens Windows driver
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*/
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static int set_value(struct cardstate *cs, u8 req, u16 val)
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{
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struct usb_device *udev = cs->hw.usb->udev;
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int r, r2;
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gig_dbg(DEBUG_USBREQ, "request %02x (%04x)",
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(unsigned)req, (unsigned)val);
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r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41,
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0xf /*?*/, 0, NULL, 0, 2000 /*?*/);
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/* no idea what this does */
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if (r < 0) {
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dev_err(&udev->dev, "error %d on request 0x12\n", -r);
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return r;
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}
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r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41,
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val, 0, NULL, 0, 2000 /*?*/);
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if (r < 0)
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dev_err(&udev->dev, "error %d on request 0x%02x\n",
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-r, (unsigned)req);
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r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
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0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/);
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if (r2 < 0)
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dev_err(&udev->dev, "error %d on request 0x19\n", -r2);
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return r < 0 ? r : (r2 < 0 ? r2 : 0);
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}
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/*
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* set the baud rate on the internal serial adapter
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* using the undocumented parameter setting command
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*/
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static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
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{
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u16 val;
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u32 rate;
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cflag &= CBAUD;
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switch (cflag) {
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case B300: rate = 300; break;
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case B600: rate = 600; break;
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case B1200: rate = 1200; break;
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case B2400: rate = 2400; break;
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case B4800: rate = 4800; break;
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case B9600: rate = 9600; break;
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case B19200: rate = 19200; break;
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case B38400: rate = 38400; break;
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case B57600: rate = 57600; break;
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case B115200: rate = 115200; break;
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default:
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rate = 9600;
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dev_err(cs->dev, "unsupported baudrate request 0x%x,"
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" using default of B9600\n", cflag);
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}
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val = 0x383fff / rate + 1;
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return set_value(cs, 1, val);
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}
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/*
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* set the line format on the internal serial adapter
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* using the undocumented parameter setting command
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*/
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static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
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{
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u16 val = 0;
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/* set the parity */
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if (cflag & PARENB)
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val |= (cflag & PARODD) ? 0x10 : 0x20;
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/* set the number of data bits */
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switch (cflag & CSIZE) {
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case CS5:
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val |= 5 << 8; break;
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case CS6:
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val |= 6 << 8; break;
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case CS7:
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val |= 7 << 8; break;
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case CS8:
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val |= 8 << 8; break;
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default:
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dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n");
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val |= 8 << 8;
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break;
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}
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/* set the number of stop bits */
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if (cflag & CSTOPB) {
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if ((cflag & CSIZE) == CS5)
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val |= 1; /* 1.5 stop bits */
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else
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val |= 2; /* 2 stop bits */
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}
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return set_value(cs, 3, val);
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}
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/*============================================================================*/
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static int gigaset_init_bchannel(struct bc_state *bcs)
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{
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/* nothing to do for M10x */
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gigaset_bchannel_up(bcs);
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return 0;
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}
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static int gigaset_close_bchannel(struct bc_state *bcs)
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{
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/* nothing to do for M10x */
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gigaset_bchannel_down(bcs);
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return 0;
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}
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static int write_modem(struct cardstate *cs);
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static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb);
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/* Write tasklet handler: Continue sending current skb, or send command, or
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* start sending an skb from the send queue.
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*/
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static void gigaset_modem_fill(unsigned long data)
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{
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struct cardstate *cs = (struct cardstate *) data;
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struct bc_state *bcs = &cs->bcs[0]; /* only one channel */
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struct cmdbuf_t *cb;
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int again;
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gig_dbg(DEBUG_OUTPUT, "modem_fill");
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if (cs->hw.usb->busy) {
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gig_dbg(DEBUG_OUTPUT, "modem_fill: busy");
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return;
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}
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do {
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again = 0;
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if (!bcs->tx_skb) { /* no skb is being sent */
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cb = cs->cmdbuf;
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if (cb) { /* commands to send? */
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gig_dbg(DEBUG_OUTPUT, "modem_fill: cb");
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if (send_cb(cs, cb) < 0) {
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gig_dbg(DEBUG_OUTPUT,
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"modem_fill: send_cb failed");
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again = 1; /* no callback will be
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called! */
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}
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} else { /* skbs to send? */
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bcs->tx_skb = skb_dequeue(&bcs->squeue);
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if (bcs->tx_skb)
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gig_dbg(DEBUG_INTR,
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"Dequeued skb (Adr: %lx)!",
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(unsigned long) bcs->tx_skb);
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}
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}
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if (bcs->tx_skb) {
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gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb");
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if (write_modem(cs) < 0) {
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gig_dbg(DEBUG_OUTPUT,
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"modem_fill: write_modem failed");
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again = 1; /* no callback will be called! */
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}
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}
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} while (again);
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}
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/*
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* Interrupt Input URB completion routine
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*/
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static void gigaset_read_int_callback(struct urb *urb)
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{
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struct cardstate *cs = urb->context;
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struct inbuf_t *inbuf = cs->inbuf;
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int status = urb->status;
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int r;
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unsigned numbytes;
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unsigned char *src;
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unsigned long flags;
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if (!status) {
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numbytes = urb->actual_length;
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if (numbytes) {
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src = cs->hw.usb->rcvbuf;
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if (unlikely(*src))
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dev_warn(cs->dev,
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"%s: There was no leading 0, but 0x%02x!\n",
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__func__, (unsigned) *src);
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++src; /* skip leading 0x00 */
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--numbytes;
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if (gigaset_fill_inbuf(inbuf, src, numbytes)) {
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gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
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gigaset_schedule_event(inbuf->cs);
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}
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} else
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gig_dbg(DEBUG_INTR, "Received zero block length");
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} else {
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/* The urb might have been killed. */
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gig_dbg(DEBUG_ANY, "%s - nonzero status received: %d",
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__func__, status);
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if (status == -ENOENT || status == -ESHUTDOWN)
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/* killed or endpoint shutdown: don't resubmit */
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return;
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}
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/* resubmit URB */
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spin_lock_irqsave(&cs->lock, flags);
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if (!cs->connected) {
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spin_unlock_irqrestore(&cs->lock, flags);
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pr_err("%s: disconnected\n", __func__);
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return;
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}
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r = usb_submit_urb(urb, GFP_ATOMIC);
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spin_unlock_irqrestore(&cs->lock, flags);
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if (r)
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dev_err(cs->dev, "error %d resubmitting URB\n", -r);
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}
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/* This callback routine is called when data was transmitted to the device. */
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static void gigaset_write_bulk_callback(struct urb *urb)
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{
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struct cardstate *cs = urb->context;
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int status = urb->status;
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unsigned long flags;
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switch (status) {
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case 0: /* normal completion */
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break;
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case -ENOENT: /* killed */
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gig_dbg(DEBUG_ANY, "%s: killed", __func__);
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cs->hw.usb->busy = 0;
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return;
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default:
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dev_err(cs->dev, "bulk transfer failed (status %d)\n",
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-status);
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/* That's all we can do. Communication problems
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are handled by timeouts or network protocols. */
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}
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spin_lock_irqsave(&cs->lock, flags);
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if (!cs->connected) {
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pr_err("%s: disconnected\n", __func__);
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} else {
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cs->hw.usb->busy = 0;
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tasklet_schedule(&cs->write_tasklet);
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}
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spin_unlock_irqrestore(&cs->lock, flags);
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}
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static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
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{
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struct cmdbuf_t *tcb;
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unsigned long flags;
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int count;
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int status = -ENOENT;
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struct usb_cardstate *ucs = cs->hw.usb;
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do {
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if (!cb->len) {
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tcb = cb;
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spin_lock_irqsave(&cs->cmdlock, flags);
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cs->cmdbytes -= cs->curlen;
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gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
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cs->curlen, cs->cmdbytes);
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cs->cmdbuf = cb = cb->next;
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if (cb) {
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cb->prev = NULL;
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cs->curlen = cb->len;
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} else {
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cs->lastcmdbuf = NULL;
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cs->curlen = 0;
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}
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spin_unlock_irqrestore(&cs->cmdlock, flags);
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if (tcb->wake_tasklet)
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tasklet_schedule(tcb->wake_tasklet);
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kfree(tcb);
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}
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if (cb) {
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count = min(cb->len, ucs->bulk_out_size);
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gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);
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usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
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usb_sndbulkpipe(ucs->udev,
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ucs->bulk_out_endpointAddr & 0x0f),
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cb->buf + cb->offset, count,
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gigaset_write_bulk_callback, cs);
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cb->offset += count;
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cb->len -= count;
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ucs->busy = 1;
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spin_lock_irqsave(&cs->lock, flags);
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status = cs->connected ?
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usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) :
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-ENODEV;
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spin_unlock_irqrestore(&cs->lock, flags);
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if (status) {
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ucs->busy = 0;
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dev_err(cs->dev,
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"could not submit urb (error %d)\n",
|
|
-status);
|
|
cb->len = 0; /* skip urb => remove cb+wakeup
|
|
in next loop cycle */
|
|
}
|
|
}
|
|
} while (cb && status); /* next command on error */
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Send command to device. */
|
|
static int gigaset_write_cmd(struct cardstate *cs, struct cmdbuf_t *cb)
|
|
{
|
|
unsigned long flags;
|
|
|
|
gigaset_dbg_buffer(cs->mstate != MS_LOCKED ?
|
|
DEBUG_TRANSCMD : DEBUG_LOCKCMD,
|
|
"CMD Transmit", cb->len, cb->buf);
|
|
|
|
spin_lock_irqsave(&cs->cmdlock, flags);
|
|
cb->prev = cs->lastcmdbuf;
|
|
if (cs->lastcmdbuf)
|
|
cs->lastcmdbuf->next = cb;
|
|
else {
|
|
cs->cmdbuf = cb;
|
|
cs->curlen = cb->len;
|
|
}
|
|
cs->cmdbytes += cb->len;
|
|
cs->lastcmdbuf = cb;
|
|
spin_unlock_irqrestore(&cs->cmdlock, flags);
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (cs->connected)
|
|
tasklet_schedule(&cs->write_tasklet);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return cb->len;
|
|
}
|
|
|
|
static int gigaset_write_room(struct cardstate *cs)
|
|
{
|
|
unsigned bytes;
|
|
|
|
bytes = cs->cmdbytes;
|
|
return bytes < IF_WRITEBUF ? IF_WRITEBUF - bytes : 0;
|
|
}
|
|
|
|
static int gigaset_chars_in_buffer(struct cardstate *cs)
|
|
{
|
|
return cs->cmdbytes;
|
|
}
|
|
|
|
/*
|
|
* set the break characters on the internal serial adapter
|
|
* using undocumented device commands reverse engineered from USB traces
|
|
* of the Siemens Windows driver
|
|
*/
|
|
static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
|
|
{
|
|
struct usb_device *udev = cs->hw.usb->udev;
|
|
|
|
gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
|
|
memcpy(cs->hw.usb->bchars, buf, 6);
|
|
return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
|
|
0, 0, &buf, 6, 2000);
|
|
}
|
|
|
|
static int gigaset_freebcshw(struct bc_state *bcs)
|
|
{
|
|
/* unused */
|
|
return 1;
|
|
}
|
|
|
|
/* Initialize the b-channel structure */
|
|
static int gigaset_initbcshw(struct bc_state *bcs)
|
|
{
|
|
/* unused */
|
|
bcs->hw.usb = NULL;
|
|
return 1;
|
|
}
|
|
|
|
static void gigaset_reinitbcshw(struct bc_state *bcs)
|
|
{
|
|
/* nothing to do for M10x */
|
|
}
|
|
|
|
static void gigaset_freecshw(struct cardstate *cs)
|
|
{
|
|
tasklet_kill(&cs->write_tasklet);
|
|
kfree(cs->hw.usb);
|
|
}
|
|
|
|
static int gigaset_initcshw(struct cardstate *cs)
|
|
{
|
|
struct usb_cardstate *ucs;
|
|
|
|
cs->hw.usb = ucs =
|
|
kmalloc(sizeof(struct usb_cardstate), GFP_KERNEL);
|
|
if (!ucs) {
|
|
pr_err("out of memory\n");
|
|
return 0;
|
|
}
|
|
|
|
ucs->bchars[0] = 0;
|
|
ucs->bchars[1] = 0;
|
|
ucs->bchars[2] = 0;
|
|
ucs->bchars[3] = 0;
|
|
ucs->bchars[4] = 0x11;
|
|
ucs->bchars[5] = 0x13;
|
|
ucs->bulk_out_buffer = NULL;
|
|
ucs->bulk_out_urb = NULL;
|
|
ucs->read_urb = NULL;
|
|
tasklet_init(&cs->write_tasklet,
|
|
gigaset_modem_fill, (unsigned long) cs);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Send data from current skb to the device. */
|
|
static int write_modem(struct cardstate *cs)
|
|
{
|
|
int ret = 0;
|
|
int count;
|
|
struct bc_state *bcs = &cs->bcs[0]; /* only one channel */
|
|
struct usb_cardstate *ucs = cs->hw.usb;
|
|
unsigned long flags;
|
|
|
|
gig_dbg(DEBUG_OUTPUT, "len: %d...", bcs->tx_skb->len);
|
|
|
|
if (!bcs->tx_skb->len) {
|
|
dev_kfree_skb_any(bcs->tx_skb);
|
|
bcs->tx_skb = NULL;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Copy data to bulk out buffer and transmit data */
|
|
count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);
|
|
skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);
|
|
skb_pull(bcs->tx_skb, count);
|
|
ucs->busy = 1;
|
|
gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (cs->connected) {
|
|
usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
|
|
usb_sndbulkpipe(ucs->udev,
|
|
ucs->bulk_out_endpointAddr &
|
|
0x0f),
|
|
ucs->bulk_out_buffer, count,
|
|
gigaset_write_bulk_callback, cs);
|
|
ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC);
|
|
} else {
|
|
ret = -ENODEV;
|
|
}
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
if (ret) {
|
|
dev_err(cs->dev, "could not submit urb (error %d)\n", -ret);
|
|
ucs->busy = 0;
|
|
}
|
|
|
|
if (!bcs->tx_skb->len) {
|
|
/* skb sent completely */
|
|
gigaset_skb_sent(bcs, bcs->tx_skb);
|
|
|
|
gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!",
|
|
(unsigned long) bcs->tx_skb);
|
|
dev_kfree_skb_any(bcs->tx_skb);
|
|
bcs->tx_skb = NULL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int gigaset_probe(struct usb_interface *interface,
|
|
const struct usb_device_id *id)
|
|
{
|
|
int retval;
|
|
struct usb_device *udev = interface_to_usbdev(interface);
|
|
struct usb_host_interface *hostif = interface->cur_altsetting;
|
|
struct cardstate *cs = NULL;
|
|
struct usb_cardstate *ucs = NULL;
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
int buffer_size;
|
|
|
|
gig_dbg(DEBUG_ANY, "%s: Check if device matches ...", __func__);
|
|
|
|
/* See if the device offered us matches what we can accept */
|
|
if ((le16_to_cpu(udev->descriptor.idVendor) != USB_M105_VENDOR_ID) ||
|
|
(le16_to_cpu(udev->descriptor.idProduct) != USB_M105_PRODUCT_ID)) {
|
|
gig_dbg(DEBUG_ANY, "device ID (0x%x, 0x%x) not for me - skip",
|
|
le16_to_cpu(udev->descriptor.idVendor),
|
|
le16_to_cpu(udev->descriptor.idProduct));
|
|
return -ENODEV;
|
|
}
|
|
if (hostif->desc.bInterfaceNumber != 0) {
|
|
gig_dbg(DEBUG_ANY, "interface %d not for me - skip",
|
|
hostif->desc.bInterfaceNumber);
|
|
return -ENODEV;
|
|
}
|
|
if (hostif->desc.bAlternateSetting != 0) {
|
|
dev_notice(&udev->dev, "unsupported altsetting %d - skip",
|
|
hostif->desc.bAlternateSetting);
|
|
return -ENODEV;
|
|
}
|
|
if (hostif->desc.bInterfaceClass != 255) {
|
|
dev_notice(&udev->dev, "unsupported interface class %d - skip",
|
|
hostif->desc.bInterfaceClass);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dev_info(&udev->dev, "%s: Device matched ... !\n", __func__);
|
|
|
|
/* allocate memory for our device state and initialize it */
|
|
cs = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME);
|
|
if (!cs)
|
|
return -ENODEV;
|
|
ucs = cs->hw.usb;
|
|
|
|
/* save off device structure ptrs for later use */
|
|
usb_get_dev(udev);
|
|
ucs->udev = udev;
|
|
ucs->interface = interface;
|
|
cs->dev = &interface->dev;
|
|
|
|
/* save address of controller structure */
|
|
usb_set_intfdata(interface, cs);
|
|
|
|
endpoint = &hostif->endpoint[0].desc;
|
|
|
|
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
|
ucs->bulk_out_size = buffer_size;
|
|
ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress;
|
|
ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
|
|
if (!ucs->bulk_out_buffer) {
|
|
dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n");
|
|
retval = -ENOMEM;
|
|
goto error;
|
|
}
|
|
|
|
ucs->bulk_out_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!ucs->bulk_out_urb) {
|
|
dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n");
|
|
retval = -ENOMEM;
|
|
goto error;
|
|
}
|
|
|
|
endpoint = &hostif->endpoint[1].desc;
|
|
|
|
ucs->busy = 0;
|
|
|
|
ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!ucs->read_urb) {
|
|
dev_err(cs->dev, "No free urbs available\n");
|
|
retval = -ENOMEM;
|
|
goto error;
|
|
}
|
|
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
|
ucs->rcvbuf_size = buffer_size;
|
|
ucs->int_in_endpointAddr = endpoint->bEndpointAddress;
|
|
ucs->rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
|
|
if (!ucs->rcvbuf) {
|
|
dev_err(cs->dev, "Couldn't allocate rcvbuf\n");
|
|
retval = -ENOMEM;
|
|
goto error;
|
|
}
|
|
/* Fill the interrupt urb and send it to the core */
|
|
usb_fill_int_urb(ucs->read_urb, udev,
|
|
usb_rcvintpipe(udev,
|
|
endpoint->bEndpointAddress & 0x0f),
|
|
ucs->rcvbuf, buffer_size,
|
|
gigaset_read_int_callback,
|
|
cs, endpoint->bInterval);
|
|
|
|
retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL);
|
|
if (retval) {
|
|
dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval);
|
|
goto error;
|
|
}
|
|
|
|
/* tell common part that the device is ready */
|
|
if (startmode == SM_LOCKED)
|
|
cs->mstate = MS_LOCKED;
|
|
|
|
if (!gigaset_start(cs)) {
|
|
tasklet_kill(&cs->write_tasklet);
|
|
retval = -ENODEV;
|
|
goto error;
|
|
}
|
|
return 0;
|
|
|
|
error:
|
|
usb_kill_urb(ucs->read_urb);
|
|
kfree(ucs->bulk_out_buffer);
|
|
usb_free_urb(ucs->bulk_out_urb);
|
|
kfree(ucs->rcvbuf);
|
|
usb_free_urb(ucs->read_urb);
|
|
usb_set_intfdata(interface, NULL);
|
|
ucs->read_urb = ucs->bulk_out_urb = NULL;
|
|
ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
|
|
usb_put_dev(ucs->udev);
|
|
ucs->udev = NULL;
|
|
ucs->interface = NULL;
|
|
gigaset_freecs(cs);
|
|
return retval;
|
|
}
|
|
|
|
static void gigaset_disconnect(struct usb_interface *interface)
|
|
{
|
|
struct cardstate *cs;
|
|
struct usb_cardstate *ucs;
|
|
|
|
cs = usb_get_intfdata(interface);
|
|
ucs = cs->hw.usb;
|
|
|
|
dev_info(cs->dev, "disconnecting Gigaset USB adapter\n");
|
|
|
|
usb_kill_urb(ucs->read_urb);
|
|
|
|
gigaset_stop(cs);
|
|
|
|
usb_set_intfdata(interface, NULL);
|
|
tasklet_kill(&cs->write_tasklet);
|
|
|
|
usb_kill_urb(ucs->bulk_out_urb);
|
|
|
|
kfree(ucs->bulk_out_buffer);
|
|
usb_free_urb(ucs->bulk_out_urb);
|
|
kfree(ucs->rcvbuf);
|
|
usb_free_urb(ucs->read_urb);
|
|
ucs->read_urb = ucs->bulk_out_urb = NULL;
|
|
ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
|
|
|
|
usb_put_dev(ucs->udev);
|
|
ucs->interface = NULL;
|
|
ucs->udev = NULL;
|
|
cs->dev = NULL;
|
|
gigaset_freecs(cs);
|
|
}
|
|
|
|
/* gigaset_suspend
|
|
* This function is called before the USB connection is suspended or reset.
|
|
*/
|
|
static int gigaset_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct cardstate *cs = usb_get_intfdata(intf);
|
|
|
|
/* stop activity */
|
|
cs->connected = 0; /* prevent rescheduling */
|
|
usb_kill_urb(cs->hw.usb->read_urb);
|
|
tasklet_kill(&cs->write_tasklet);
|
|
usb_kill_urb(cs->hw.usb->bulk_out_urb);
|
|
|
|
gig_dbg(DEBUG_SUSPEND, "suspend complete");
|
|
return 0;
|
|
}
|
|
|
|
/* gigaset_resume
|
|
* This function is called after the USB connection has been resumed or reset.
|
|
*/
|
|
static int gigaset_resume(struct usb_interface *intf)
|
|
{
|
|
struct cardstate *cs = usb_get_intfdata(intf);
|
|
int rc;
|
|
|
|
/* resubmit interrupt URB */
|
|
cs->connected = 1;
|
|
rc = usb_submit_urb(cs->hw.usb->read_urb, GFP_KERNEL);
|
|
if (rc) {
|
|
dev_err(cs->dev, "Could not submit read URB (error %d)\n", -rc);
|
|
return rc;
|
|
}
|
|
|
|
gig_dbg(DEBUG_SUSPEND, "resume complete");
|
|
return 0;
|
|
}
|
|
|
|
/* gigaset_pre_reset
|
|
* This function is called before the USB connection is reset.
|
|
*/
|
|
static int gigaset_pre_reset(struct usb_interface *intf)
|
|
{
|
|
/* same as suspend */
|
|
return gigaset_suspend(intf, PMSG_ON);
|
|
}
|
|
|
|
static const struct gigaset_ops ops = {
|
|
gigaset_write_cmd,
|
|
gigaset_write_room,
|
|
gigaset_chars_in_buffer,
|
|
gigaset_brkchars,
|
|
gigaset_init_bchannel,
|
|
gigaset_close_bchannel,
|
|
gigaset_initbcshw,
|
|
gigaset_freebcshw,
|
|
gigaset_reinitbcshw,
|
|
gigaset_initcshw,
|
|
gigaset_freecshw,
|
|
gigaset_set_modem_ctrl,
|
|
gigaset_baud_rate,
|
|
gigaset_set_line_ctrl,
|
|
gigaset_m10x_send_skb,
|
|
gigaset_m10x_input,
|
|
};
|
|
|
|
/*
|
|
* This function is called while kernel-module is loaded
|
|
*/
|
|
static int __init usb_gigaset_init(void)
|
|
{
|
|
int result;
|
|
|
|
/* allocate memory for our driver state and initialize it */
|
|
driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
|
|
GIGASET_MODULENAME, GIGASET_DEVNAME,
|
|
&ops, THIS_MODULE);
|
|
if (driver == NULL)
|
|
goto error;
|
|
|
|
/* register this driver with the USB subsystem */
|
|
result = usb_register(&gigaset_usb_driver);
|
|
if (result < 0) {
|
|
pr_err("error %d registering USB driver\n", -result);
|
|
goto error;
|
|
}
|
|
|
|
pr_info(DRIVER_DESC "\n");
|
|
return 0;
|
|
|
|
error:
|
|
if (driver)
|
|
gigaset_freedriver(driver);
|
|
driver = NULL;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* This function is called while unloading the kernel-module
|
|
*/
|
|
static void __exit usb_gigaset_exit(void)
|
|
{
|
|
int i;
|
|
|
|
gigaset_blockdriver(driver); /* => probe will fail
|
|
* => no gigaset_start any more
|
|
*/
|
|
|
|
/* stop all connected devices */
|
|
for (i = 0; i < driver->minors; i++)
|
|
gigaset_shutdown(driver->cs + i);
|
|
|
|
/* from now on, no isdn callback should be possible */
|
|
|
|
/* deregister this driver with the USB subsystem */
|
|
usb_deregister(&gigaset_usb_driver);
|
|
/* this will call the disconnect-callback */
|
|
/* from now on, no disconnect/probe callback should be running */
|
|
|
|
gigaset_freedriver(driver);
|
|
driver = NULL;
|
|
}
|
|
|
|
|
|
module_init(usb_gigaset_init);
|
|
module_exit(usb_gigaset_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
|
|
MODULE_LICENSE("GPL");
|