1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
847 lines
23 KiB
C
847 lines
23 KiB
C
/******************************************************************************
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* speedtch.c - Alcatel SpeedTouch USB xDSL modem driver
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*
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* Copyright (C) 2001, Alcatel
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* Copyright (C) 2003, Duncan Sands
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* Copyright (C) 2004, David Woodhouse
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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******************************************************************************/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/gfp.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/errno.h>
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#include <linux/proc_fs.h>
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#include <linux/slab.h>
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#include <linux/wait.h>
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#include <linux/list.h>
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#include <asm/processor.h>
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#include <asm/uaccess.h>
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#include <linux/smp_lock.h>
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#include <linux/interrupt.h>
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#include <linux/atm.h>
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#include <linux/atmdev.h>
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#include <linux/crc32.h>
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#include <linux/init.h>
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#include <linux/firmware.h>
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#include "usb_atm.h"
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#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
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# define USE_FW_LOADER
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#endif
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#define DRIVER_AUTHOR "Johan Verrept, Duncan Sands <duncan.sands@free.fr>"
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#define DRIVER_VERSION "1.8"
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#define DRIVER_DESC "Alcatel SpeedTouch USB driver version " DRIVER_VERSION
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static const char speedtch_driver_name[] = "speedtch";
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#define SPEEDTOUCH_VENDORID 0x06b9
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#define SPEEDTOUCH_PRODUCTID 0x4061
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/* Timeout in jiffies */
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#define CTRL_TIMEOUT 2000
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#define DATA_TIMEOUT 2000
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#define OFFSET_7 0 /* size 1 */
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#define OFFSET_b 1 /* size 8 */
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#define OFFSET_d 9 /* size 4 */
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#define OFFSET_e 13 /* size 1 */
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#define OFFSET_f 14 /* size 1 */
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#define TOTAL 15
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#define SIZE_7 1
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#define SIZE_b 8
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#define SIZE_d 4
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#define SIZE_e 1
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#define SIZE_f 1
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static int dl_512_first = 0;
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static int sw_buffering = 0;
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module_param(dl_512_first, bool, 0444);
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MODULE_PARM_DESC(dl_512_first, "Read 512 bytes before sending firmware");
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module_param(sw_buffering, uint, 0444);
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MODULE_PARM_DESC(sw_buffering, "Enable software buffering");
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#define UDSL_IOCTL_LINE_UP 1
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#define UDSL_IOCTL_LINE_DOWN 2
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#define SPEEDTCH_ENDPOINT_INT 0x81
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#define SPEEDTCH_ENDPOINT_DATA 0x07
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#define SPEEDTCH_ENDPOINT_FIRMWARE 0x05
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#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) )
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static struct usb_device_id speedtch_usb_ids[] = {
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{USB_DEVICE(SPEEDTOUCH_VENDORID, SPEEDTOUCH_PRODUCTID)},
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{}
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};
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MODULE_DEVICE_TABLE(usb, speedtch_usb_ids);
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struct speedtch_instance_data {
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struct udsl_instance_data u;
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/* Status */
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struct urb *int_urb;
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unsigned char int_data[16];
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struct work_struct poll_work;
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struct timer_list poll_timer;
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};
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/* USB */
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static int speedtch_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id);
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static void speedtch_usb_disconnect(struct usb_interface *intf);
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static int speedtch_usb_ioctl(struct usb_interface *intf, unsigned int code,
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void *user_data);
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static void speedtch_handle_int(struct urb *urb, struct pt_regs *regs);
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static void speedtch_poll_status(struct speedtch_instance_data *instance);
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static struct usb_driver speedtch_usb_driver = {
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.owner = THIS_MODULE,
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.name = speedtch_driver_name,
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.probe = speedtch_usb_probe,
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.disconnect = speedtch_usb_disconnect,
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.ioctl = speedtch_usb_ioctl,
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.id_table = speedtch_usb_ids,
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};
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/***************
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** firmware **
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***************/
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static void speedtch_got_firmware(struct speedtch_instance_data *instance,
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int got_it)
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{
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int err;
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struct usb_interface *intf;
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down(&instance->u.serialize); /* vs self, speedtch_firmware_start */
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if (instance->u.status == UDSL_LOADED_FIRMWARE)
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goto out;
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if (!got_it) {
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instance->u.status = UDSL_NO_FIRMWARE;
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goto out;
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}
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if ((err = usb_set_interface(instance->u.usb_dev, 1, 1)) < 0) {
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dbg("speedtch_got_firmware: usb_set_interface returned %d!", err);
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instance->u.status = UDSL_NO_FIRMWARE;
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goto out;
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}
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/* Set up interrupt endpoint */
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intf = usb_ifnum_to_if(instance->u.usb_dev, 0);
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if (intf && !usb_driver_claim_interface(&speedtch_usb_driver, intf, NULL)) {
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instance->int_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (instance->int_urb) {
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usb_fill_int_urb(instance->int_urb, instance->u.usb_dev,
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usb_rcvintpipe(instance->u.usb_dev, SPEEDTCH_ENDPOINT_INT),
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instance->int_data,
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sizeof(instance->int_data),
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speedtch_handle_int, instance, 50);
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err = usb_submit_urb(instance->int_urb, GFP_KERNEL);
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if (err) {
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/* Doesn't matter; we'll poll anyway */
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dbg("speedtch_got_firmware: Submission of interrupt URB failed %d", err);
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usb_free_urb(instance->int_urb);
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instance->int_urb = NULL;
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usb_driver_release_interface(&speedtch_usb_driver, intf);
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}
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}
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}
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/* Start status polling */
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mod_timer(&instance->poll_timer, jiffies + (1 * HZ));
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instance->u.status = UDSL_LOADED_FIRMWARE;
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tasklet_schedule(&instance->u.receive_tasklet);
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out:
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up(&instance->u.serialize);
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wake_up_interruptible(&instance->u.firmware_waiters);
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}
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static int speedtch_set_swbuff(struct speedtch_instance_data *instance,
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int state)
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{
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struct usb_device *dev = instance->u.usb_dev;
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int ret;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x32, 0x40, state ? 0x01 : 0x00,
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0x00, NULL, 0, 100);
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if (ret < 0) {
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printk("Warning: %sabling SW buffering: usb_control_msg returned %d\n",
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state ? "En" : "Dis", ret);
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return ret;
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}
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dbg("speedtch_set_swbuff: %sbled SW buffering", state ? "En" : "Dis");
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return 0;
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}
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static void speedtch_test_sequence(struct speedtch_instance_data *instance)
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{
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struct usb_device *dev = instance->u.usb_dev;
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unsigned char buf[10];
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int ret;
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/* URB 147 */
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buf[0] = 0x1c;
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buf[1] = 0x50;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01, 0x40, 0x0b, 0x00, buf, 2, 100);
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if (ret < 0)
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printk(KERN_WARNING "%s failed on URB147: %d\n", __func__, ret);
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/* URB 148 */
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buf[0] = 0x32;
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buf[1] = 0x00;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01, 0x40, 0x02, 0x00, buf, 2, 100);
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if (ret < 0)
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printk(KERN_WARNING "%s failed on URB148: %d\n", __func__, ret);
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/* URB 149 */
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buf[0] = 0x01;
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buf[1] = 0x00;
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buf[2] = 0x01;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01, 0x40, 0x03, 0x00, buf, 3, 100);
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if (ret < 0)
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printk(KERN_WARNING "%s failed on URB149: %d\n", __func__, ret);
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/* URB 150 */
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buf[0] = 0x01;
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buf[1] = 0x00;
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buf[2] = 0x01;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01, 0x40, 0x04, 0x00, buf, 3, 100);
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if (ret < 0)
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printk(KERN_WARNING "%s failed on URB150: %d\n", __func__, ret);
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}
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static int speedtch_start_synchro(struct speedtch_instance_data *instance)
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{
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struct usb_device *dev = instance->u.usb_dev;
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unsigned char buf[2];
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int ret;
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x12, 0xc0, 0x04, 0x00,
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buf, sizeof(buf), CTRL_TIMEOUT);
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if (ret < 0) {
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printk(KERN_WARNING "SpeedTouch: Failed to start ADSL synchronisation: %d\n", ret);
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return ret;
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}
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dbg("speedtch_start_synchro: modem prodded. %d Bytes returned: %02x %02x", ret, buf[0], buf[1]);
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return 0;
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}
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static void speedtch_handle_int(struct urb *urb, struct pt_regs *regs)
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{
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struct speedtch_instance_data *instance = urb->context;
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unsigned int count = urb->actual_length;
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int ret;
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/* The magic interrupt for "up state" */
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const static unsigned char up_int[6] = { 0xa1, 0x00, 0x01, 0x00, 0x00, 0x00 };
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/* The magic interrupt for "down state" */
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const static unsigned char down_int[6] = { 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00 };
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switch (urb->status) {
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case 0:
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/* success */
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break;
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case -ECONNRESET:
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case -ENOENT:
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case -ESHUTDOWN:
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/* this urb is terminated; clean up */
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dbg("%s - urb shutting down with status: %d", __func__, urb->status);
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return;
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default:
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dbg("%s - nonzero urb status received: %d", __func__, urb->status);
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goto exit;
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}
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if (count < 6) {
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dbg("%s - int packet too short", __func__);
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goto exit;
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}
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if (!memcmp(up_int, instance->int_data, 6)) {
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del_timer(&instance->poll_timer);
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printk(KERN_NOTICE "DSL line goes up\n");
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} else if (!memcmp(down_int, instance->int_data, 6)) {
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printk(KERN_NOTICE "DSL line goes down\n");
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} else {
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int i;
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printk(KERN_DEBUG "Unknown interrupt packet of %d bytes:", count);
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for (i = 0; i < count; i++)
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printk(" %02x", instance->int_data[i]);
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printk("\n");
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}
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schedule_work(&instance->poll_work);
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exit:
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rmb();
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if (!instance->int_urb)
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return;
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ret = usb_submit_urb(urb, GFP_ATOMIC);
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if (ret)
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err("%s - usb_submit_urb failed with result %d", __func__, ret);
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}
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static int speedtch_get_status(struct speedtch_instance_data *instance,
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unsigned char *buf)
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{
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struct usb_device *dev = instance->u.usb_dev;
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int ret;
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memset(buf, 0, TOTAL);
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x12, 0xc0, 0x07, 0x00, buf + OFFSET_7, SIZE_7,
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CTRL_TIMEOUT);
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if (ret < 0) {
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dbg("MSG 7 failed");
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return ret;
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}
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x12, 0xc0, 0x0b, 0x00, buf + OFFSET_b, SIZE_b,
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CTRL_TIMEOUT);
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if (ret < 0) {
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dbg("MSG B failed");
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return ret;
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}
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x12, 0xc0, 0x0d, 0x00, buf + OFFSET_d, SIZE_d,
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CTRL_TIMEOUT);
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if (ret < 0) {
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dbg("MSG D failed");
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return ret;
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}
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x01, 0xc0, 0x0e, 0x00, buf + OFFSET_e, SIZE_e,
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CTRL_TIMEOUT);
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if (ret < 0) {
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dbg("MSG E failed");
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return ret;
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}
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x01, 0xc0, 0x0f, 0x00, buf + OFFSET_f, SIZE_f,
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CTRL_TIMEOUT);
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if (ret < 0) {
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dbg("MSG F failed");
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return ret;
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}
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return 0;
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}
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static void speedtch_poll_status(struct speedtch_instance_data *instance)
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{
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unsigned char buf[TOTAL];
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int ret;
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ret = speedtch_get_status(instance, buf);
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if (ret) {
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printk(KERN_WARNING
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"SpeedTouch: Error %d fetching device status\n", ret);
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return;
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}
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dbg("Line state %02x", buf[OFFSET_7]);
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switch (buf[OFFSET_7]) {
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case 0:
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if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
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instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
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printk(KERN_NOTICE "ADSL line is down\n");
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}
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break;
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case 0x08:
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if (instance->u.atm_dev->signal != ATM_PHY_SIG_UNKNOWN) {
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instance->u.atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
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printk(KERN_NOTICE "ADSL line is blocked?\n");
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}
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break;
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case 0x10:
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if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
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instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
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printk(KERN_NOTICE "ADSL line is synchronising\n");
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}
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break;
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case 0x20:
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if (instance->u.atm_dev->signal != ATM_PHY_SIG_FOUND) {
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int down_speed = buf[OFFSET_b] | (buf[OFFSET_b + 1] << 8)
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| (buf[OFFSET_b + 2] << 16) | (buf[OFFSET_b + 3] << 24);
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int up_speed = buf[OFFSET_b + 4] | (buf[OFFSET_b + 5] << 8)
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| (buf[OFFSET_b + 6] << 16) | (buf[OFFSET_b + 7] << 24);
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if (!(down_speed & 0x0000ffff) &&
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!(up_speed & 0x0000ffff)) {
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down_speed >>= 16;
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up_speed >>= 16;
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}
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instance->u.atm_dev->link_rate = down_speed * 1000 / 424;
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instance->u.atm_dev->signal = ATM_PHY_SIG_FOUND;
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printk(KERN_NOTICE
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"ADSL line is up (%d Kib/s down | %d Kib/s up)\n",
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down_speed, up_speed);
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}
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break;
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default:
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if (instance->u.atm_dev->signal != ATM_PHY_SIG_UNKNOWN) {
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instance->u.atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
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printk(KERN_NOTICE "Unknown line state %02x\n", buf[OFFSET_7]);
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}
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break;
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}
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}
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static void speedtch_timer_poll(unsigned long data)
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{
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struct speedtch_instance_data *instance = (void *)data;
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schedule_work(&instance->poll_work);
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mod_timer(&instance->poll_timer, jiffies + (5 * HZ));
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}
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#ifdef USE_FW_LOADER
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static void speedtch_upload_firmware(struct speedtch_instance_data *instance,
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const struct firmware *fw1,
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const struct firmware *fw2)
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{
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unsigned char *buffer;
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struct usb_device *usb_dev = instance->u.usb_dev;
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struct usb_interface *intf;
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int actual_length, ret;
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int offset;
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dbg("speedtch_upload_firmware");
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if (!(intf = usb_ifnum_to_if(usb_dev, 2))) {
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dbg("speedtch_upload_firmware: interface not found!");
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goto fail;
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}
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if (!(buffer = (unsigned char *)__get_free_page(GFP_KERNEL))) {
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dbg("speedtch_upload_firmware: no memory for buffer!");
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goto fail;
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}
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/* A user-space firmware loader may already have claimed interface #2 */
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if ((ret =
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usb_driver_claim_interface(&speedtch_usb_driver, intf, NULL)) < 0) {
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dbg("speedtch_upload_firmware: interface in use (%d)!", ret);
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goto fail_free;
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}
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/* URB 7 */
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if (dl_512_first) { /* some modems need a read before writing the firmware */
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ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
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buffer, 0x200, &actual_length, 2000);
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if (ret < 0 && ret != -ETIMEDOUT)
|
|
dbg("speedtch_upload_firmware: read BLOCK0 from modem failed (%d)!", ret);
|
|
else
|
|
dbg("speedtch_upload_firmware: BLOCK0 downloaded (%d bytes)", ret);
|
|
}
|
|
|
|
/* URB 8 : both leds are static green */
|
|
for (offset = 0; offset < fw1->size; offset += PAGE_SIZE) {
|
|
int thislen = min_t(int, PAGE_SIZE, fw1->size - offset);
|
|
memcpy(buffer, fw1->data + offset, thislen);
|
|
|
|
ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
|
|
buffer, thislen, &actual_length, DATA_TIMEOUT);
|
|
|
|
if (ret < 0) {
|
|
dbg("speedtch_upload_firmware: write BLOCK1 to modem failed (%d)!", ret);
|
|
goto fail_release;
|
|
}
|
|
dbg("speedtch_upload_firmware: BLOCK1 uploaded (%zu bytes)", fw1->size);
|
|
}
|
|
|
|
/* USB led blinking green, ADSL led off */
|
|
|
|
/* URB 11 */
|
|
ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
|
|
buffer, 0x200, &actual_length, DATA_TIMEOUT);
|
|
|
|
if (ret < 0) {
|
|
dbg("speedtch_upload_firmware: read BLOCK2 from modem failed (%d)!", ret);
|
|
goto fail_release;
|
|
}
|
|
dbg("speedtch_upload_firmware: BLOCK2 downloaded (%d bytes)", actual_length);
|
|
|
|
/* URBs 12 to 139 - USB led blinking green, ADSL led off */
|
|
for (offset = 0; offset < fw2->size; offset += PAGE_SIZE) {
|
|
int thislen = min_t(int, PAGE_SIZE, fw2->size - offset);
|
|
memcpy(buffer, fw2->data + offset, thislen);
|
|
|
|
ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
|
|
buffer, thislen, &actual_length, DATA_TIMEOUT);
|
|
|
|
if (ret < 0) {
|
|
dbg("speedtch_upload_firmware: write BLOCK3 to modem failed (%d)!", ret);
|
|
goto fail_release;
|
|
}
|
|
}
|
|
dbg("speedtch_upload_firmware: BLOCK3 uploaded (%zu bytes)", fw2->size);
|
|
|
|
/* USB led static green, ADSL led static red */
|
|
|
|
/* URB 142 */
|
|
ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
|
|
buffer, 0x200, &actual_length, DATA_TIMEOUT);
|
|
|
|
if (ret < 0) {
|
|
dbg("speedtch_upload_firmware: read BLOCK4 from modem failed (%d)!", ret);
|
|
goto fail_release;
|
|
}
|
|
|
|
/* success */
|
|
dbg("speedtch_upload_firmware: BLOCK4 downloaded (%d bytes)", actual_length);
|
|
|
|
/* Delay to allow firmware to start up. We can do this here
|
|
because we're in our own kernel thread anyway. */
|
|
msleep(1000);
|
|
|
|
/* Enable software buffering, if requested */
|
|
if (sw_buffering)
|
|
speedtch_set_swbuff(instance, 1);
|
|
|
|
/* Magic spell; don't ask us what this does */
|
|
speedtch_test_sequence(instance);
|
|
|
|
/* Start modem synchronisation */
|
|
if (speedtch_start_synchro(instance))
|
|
dbg("speedtch_start_synchro: failed");
|
|
|
|
speedtch_got_firmware(instance, 1);
|
|
|
|
free_page((unsigned long)buffer);
|
|
return;
|
|
|
|
fail_release:
|
|
/* Only release interface #2 if uploading failed; we don't release it
|
|
we succeeded. This prevents the userspace tools from trying to load
|
|
the firmware themselves */
|
|
usb_driver_release_interface(&speedtch_usb_driver, intf);
|
|
fail_free:
|
|
free_page((unsigned long)buffer);
|
|
fail:
|
|
speedtch_got_firmware(instance, 0);
|
|
}
|
|
|
|
static int speedtch_find_firmware(struct speedtch_instance_data
|
|
*instance, int phase,
|
|
const struct firmware **fw_p)
|
|
{
|
|
char buf[24];
|
|
const u16 bcdDevice = le16_to_cpu(instance->u.usb_dev->descriptor.bcdDevice);
|
|
const u8 major_revision = bcdDevice >> 8;
|
|
const u8 minor_revision = bcdDevice & 0xff;
|
|
|
|
sprintf(buf, "speedtch-%d.bin.%x.%02x", phase, major_revision, minor_revision);
|
|
dbg("speedtch_find_firmware: looking for %s", buf);
|
|
|
|
if (request_firmware(fw_p, buf, &instance->u.usb_dev->dev)) {
|
|
sprintf(buf, "speedtch-%d.bin.%x", phase, major_revision);
|
|
dbg("speedtch_find_firmware: looking for %s", buf);
|
|
|
|
if (request_firmware(fw_p, buf, &instance->u.usb_dev->dev)) {
|
|
sprintf(buf, "speedtch-%d.bin", phase);
|
|
dbg("speedtch_find_firmware: looking for %s", buf);
|
|
|
|
if (request_firmware(fw_p, buf, &instance->u.usb_dev->dev)) {
|
|
dev_warn(&instance->u.usb_dev->dev, "no stage %d firmware found!", phase);
|
|
return -ENOENT;
|
|
}
|
|
}
|
|
}
|
|
|
|
dev_info(&instance->u.usb_dev->dev, "found stage %d firmware %s\n", phase, buf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int speedtch_load_firmware(void *arg)
|
|
{
|
|
const struct firmware *fw1, *fw2;
|
|
struct speedtch_instance_data *instance = arg;
|
|
|
|
BUG_ON(!instance);
|
|
|
|
daemonize("firmware/speedtch");
|
|
|
|
if (!speedtch_find_firmware(instance, 1, &fw1)) {
|
|
if (!speedtch_find_firmware(instance, 2, &fw2)) {
|
|
speedtch_upload_firmware(instance, fw1, fw2);
|
|
release_firmware(fw2);
|
|
}
|
|
release_firmware(fw1);
|
|
}
|
|
|
|
/* In case we failed, set state back to NO_FIRMWARE so that
|
|
another later attempt may work. Otherwise, we never actually
|
|
manage to recover if, for example, the firmware is on /usr and
|
|
we look for it too early. */
|
|
speedtch_got_firmware(instance, 0);
|
|
|
|
module_put(THIS_MODULE);
|
|
udsl_put_instance(&instance->u);
|
|
return 0;
|
|
}
|
|
#endif /* USE_FW_LOADER */
|
|
|
|
static void speedtch_firmware_start(struct speedtch_instance_data *instance)
|
|
{
|
|
#ifdef USE_FW_LOADER
|
|
int ret;
|
|
#endif
|
|
|
|
dbg("speedtch_firmware_start");
|
|
|
|
down(&instance->u.serialize); /* vs self, speedtch_got_firmware */
|
|
|
|
if (instance->u.status >= UDSL_LOADING_FIRMWARE) {
|
|
up(&instance->u.serialize);
|
|
return;
|
|
}
|
|
|
|
instance->u.status = UDSL_LOADING_FIRMWARE;
|
|
up(&instance->u.serialize);
|
|
|
|
#ifdef USE_FW_LOADER
|
|
udsl_get_instance(&instance->u);
|
|
try_module_get(THIS_MODULE);
|
|
|
|
ret = kernel_thread(speedtch_load_firmware, instance,
|
|
CLONE_FS | CLONE_FILES);
|
|
|
|
if (ret >= 0)
|
|
return; /* OK */
|
|
|
|
dbg("speedtch_firmware_start: kernel_thread failed (%d)!", ret);
|
|
|
|
module_put(THIS_MODULE);
|
|
udsl_put_instance(&instance->u);
|
|
/* Just pretend it never happened... hope modem_run happens */
|
|
#endif /* USE_FW_LOADER */
|
|
|
|
speedtch_got_firmware(instance, 0);
|
|
}
|
|
|
|
static int speedtch_firmware_wait(struct udsl_instance_data *instance)
|
|
{
|
|
speedtch_firmware_start((void *)instance);
|
|
|
|
if (wait_event_interruptible(instance->firmware_waiters, instance->status != UDSL_LOADING_FIRMWARE) < 0)
|
|
return -ERESTARTSYS;
|
|
|
|
return (instance->status == UDSL_LOADED_FIRMWARE) ? 0 : -EAGAIN;
|
|
}
|
|
|
|
/**********
|
|
** USB **
|
|
**********/
|
|
|
|
static int speedtch_usb_ioctl(struct usb_interface *intf, unsigned int code,
|
|
void *user_data)
|
|
{
|
|
struct speedtch_instance_data *instance = usb_get_intfdata(intf);
|
|
|
|
dbg("speedtch_usb_ioctl entered");
|
|
|
|
if (!instance) {
|
|
dbg("speedtch_usb_ioctl: NULL instance!");
|
|
return -ENODEV;
|
|
}
|
|
|
|
switch (code) {
|
|
case UDSL_IOCTL_LINE_UP:
|
|
instance->u.atm_dev->signal = ATM_PHY_SIG_FOUND;
|
|
speedtch_got_firmware(instance, 1);
|
|
return (instance->u.status == UDSL_LOADED_FIRMWARE) ? 0 : -EIO;
|
|
case UDSL_IOCTL_LINE_DOWN:
|
|
instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
|
|
return 0;
|
|
default:
|
|
return -ENOTTY;
|
|
}
|
|
}
|
|
|
|
static int speedtch_usb_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *dev = interface_to_usbdev(intf);
|
|
int ifnum = intf->altsetting->desc.bInterfaceNumber;
|
|
struct speedtch_instance_data *instance;
|
|
unsigned char mac_str[13];
|
|
int ret, i;
|
|
char buf7[SIZE_7];
|
|
|
|
dbg("speedtch_usb_probe: trying device with vendor=0x%x, product=0x%x, ifnum %d",
|
|
le16_to_cpu(dev->descriptor.idVendor),
|
|
le16_to_cpu(dev->descriptor.idProduct), ifnum);
|
|
|
|
if ((dev->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) ||
|
|
(ifnum != 1))
|
|
return -ENODEV;
|
|
|
|
dbg("speedtch_usb_probe: device accepted");
|
|
|
|
/* instance init */
|
|
instance = kmalloc(sizeof(*instance), GFP_KERNEL);
|
|
if (!instance) {
|
|
dbg("speedtch_usb_probe: no memory for instance data!");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(instance, 0, sizeof(struct speedtch_instance_data));
|
|
|
|
if ((ret = usb_set_interface(dev, 0, 0)) < 0)
|
|
goto fail;
|
|
|
|
if ((ret = usb_set_interface(dev, 2, 0)) < 0)
|
|
goto fail;
|
|
|
|
instance->u.data_endpoint = SPEEDTCH_ENDPOINT_DATA;
|
|
instance->u.firmware_wait = speedtch_firmware_wait;
|
|
instance->u.driver_name = speedtch_driver_name;
|
|
|
|
ret = udsl_instance_setup(dev, &instance->u);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
init_timer(&instance->poll_timer);
|
|
instance->poll_timer.function = speedtch_timer_poll;
|
|
instance->poll_timer.data = (unsigned long)instance;
|
|
|
|
INIT_WORK(&instance->poll_work, (void *)speedtch_poll_status, instance);
|
|
|
|
/* set MAC address, it is stored in the serial number */
|
|
memset(instance->u.atm_dev->esi, 0, sizeof(instance->u.atm_dev->esi));
|
|
if (usb_string(dev, dev->descriptor.iSerialNumber, mac_str, sizeof(mac_str)) == 12) {
|
|
for (i = 0; i < 6; i++)
|
|
instance->u.atm_dev->esi[i] =
|
|
(hex2int(mac_str[i * 2]) * 16) + (hex2int(mac_str[i * 2 + 1]));
|
|
}
|
|
|
|
/* First check whether the modem already seems to be alive */
|
|
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
0x12, 0xc0, 0x07, 0x00, buf7, SIZE_7, 500);
|
|
|
|
if (ret == SIZE_7) {
|
|
dbg("firmware appears to be already loaded");
|
|
speedtch_got_firmware(instance, 1);
|
|
speedtch_poll_status(instance);
|
|
} else {
|
|
speedtch_firmware_start(instance);
|
|
}
|
|
|
|
usb_set_intfdata(intf, instance);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
kfree(instance);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void speedtch_usb_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct speedtch_instance_data *instance = usb_get_intfdata(intf);
|
|
|
|
dbg("speedtch_usb_disconnect entered");
|
|
|
|
if (!instance) {
|
|
dbg("speedtch_usb_disconnect: NULL instance!");
|
|
return;
|
|
}
|
|
|
|
/*QQ need to handle disconnects on interface #2 while uploading firmware */
|
|
/*QQ and what about interface #1? */
|
|
|
|
if (instance->int_urb) {
|
|
struct urb *int_urb = instance->int_urb;
|
|
instance->int_urb = NULL;
|
|
wmb();
|
|
usb_unlink_urb(int_urb);
|
|
usb_free_urb(int_urb);
|
|
}
|
|
|
|
instance->int_data[0] = 1;
|
|
del_timer_sync(&instance->poll_timer);
|
|
wmb();
|
|
flush_scheduled_work();
|
|
|
|
udsl_instance_disconnect(&instance->u);
|
|
|
|
/* clean up */
|
|
usb_set_intfdata(intf, NULL);
|
|
udsl_put_instance(&instance->u);
|
|
}
|
|
|
|
/***********
|
|
** init **
|
|
***********/
|
|
|
|
static int __init speedtch_usb_init(void)
|
|
{
|
|
dbg("speedtch_usb_init: driver version " DRIVER_VERSION);
|
|
|
|
return usb_register(&speedtch_usb_driver);
|
|
}
|
|
|
|
static void __exit speedtch_usb_cleanup(void)
|
|
{
|
|
dbg("speedtch_usb_cleanup entered");
|
|
|
|
usb_deregister(&speedtch_usb_driver);
|
|
}
|
|
|
|
module_init(speedtch_usb_init);
|
|
module_exit(speedtch_usb_cleanup);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRIVER_VERSION);
|