Linux-2.6.12-rc2
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!
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
new file mode 100644
index 0000000..233f922
--- /dev/null
+++ b/drivers/usb/atm/speedtch.c
@@ -0,0 +1,847 @@
+/******************************************************************************
+ * speedtch.c - Alcatel SpeedTouch USB xDSL modem driver
+ *
+ * Copyright (C) 2001, Alcatel
+ * Copyright (C) 2003, Duncan Sands
+ * Copyright (C) 2004, David Woodhouse
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ ******************************************************************************/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/list.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/atm.h>
+#include <linux/atmdev.h>
+#include <linux/crc32.h>
+#include <linux/init.h>
+#include <linux/firmware.h>
+
+#include "usb_atm.h"
+
+#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
+# define USE_FW_LOADER
+#endif
+
+#define DRIVER_AUTHOR "Johan Verrept, Duncan Sands <duncan.sands@free.fr>"
+#define DRIVER_VERSION "1.8"
+#define DRIVER_DESC "Alcatel SpeedTouch USB driver version " DRIVER_VERSION
+
+static const char speedtch_driver_name[] = "speedtch";
+
+#define SPEEDTOUCH_VENDORID 0x06b9
+#define SPEEDTOUCH_PRODUCTID 0x4061
+
+/* Timeout in jiffies */
+#define CTRL_TIMEOUT 2000
+#define DATA_TIMEOUT 2000
+
+#define OFFSET_7 0 /* size 1 */
+#define OFFSET_b 1 /* size 8 */
+#define OFFSET_d 9 /* size 4 */
+#define OFFSET_e 13 /* size 1 */
+#define OFFSET_f 14 /* size 1 */
+#define TOTAL 15
+
+#define SIZE_7 1
+#define SIZE_b 8
+#define SIZE_d 4
+#define SIZE_e 1
+#define SIZE_f 1
+
+static int dl_512_first = 0;
+static int sw_buffering = 0;
+
+module_param(dl_512_first, bool, 0444);
+MODULE_PARM_DESC(dl_512_first, "Read 512 bytes before sending firmware");
+
+module_param(sw_buffering, uint, 0444);
+MODULE_PARM_DESC(sw_buffering, "Enable software buffering");
+
+#define UDSL_IOCTL_LINE_UP 1
+#define UDSL_IOCTL_LINE_DOWN 2
+
+#define SPEEDTCH_ENDPOINT_INT 0x81
+#define SPEEDTCH_ENDPOINT_DATA 0x07
+#define SPEEDTCH_ENDPOINT_FIRMWARE 0x05
+
+#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) )
+
+static struct usb_device_id speedtch_usb_ids[] = {
+ {USB_DEVICE(SPEEDTOUCH_VENDORID, SPEEDTOUCH_PRODUCTID)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, speedtch_usb_ids);
+
+struct speedtch_instance_data {
+ struct udsl_instance_data u;
+
+ /* Status */
+ struct urb *int_urb;
+ unsigned char int_data[16];
+ struct work_struct poll_work;
+ struct timer_list poll_timer;
+};
+/* USB */
+
+static int speedtch_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id);
+static void speedtch_usb_disconnect(struct usb_interface *intf);
+static int speedtch_usb_ioctl(struct usb_interface *intf, unsigned int code,
+ void *user_data);
+static void speedtch_handle_int(struct urb *urb, struct pt_regs *regs);
+static void speedtch_poll_status(struct speedtch_instance_data *instance);
+
+static struct usb_driver speedtch_usb_driver = {
+ .owner = THIS_MODULE,
+ .name = speedtch_driver_name,
+ .probe = speedtch_usb_probe,
+ .disconnect = speedtch_usb_disconnect,
+ .ioctl = speedtch_usb_ioctl,
+ .id_table = speedtch_usb_ids,
+};
+
+/***************
+** firmware **
+***************/
+
+static void speedtch_got_firmware(struct speedtch_instance_data *instance,
+ int got_it)
+{
+ int err;
+ struct usb_interface *intf;
+
+ down(&instance->u.serialize); /* vs self, speedtch_firmware_start */
+ if (instance->u.status == UDSL_LOADED_FIRMWARE)
+ goto out;
+ if (!got_it) {
+ instance->u.status = UDSL_NO_FIRMWARE;
+ goto out;
+ }
+ if ((err = usb_set_interface(instance->u.usb_dev, 1, 1)) < 0) {
+ dbg("speedtch_got_firmware: usb_set_interface returned %d!", err);
+ instance->u.status = UDSL_NO_FIRMWARE;
+ goto out;
+ }
+
+ /* Set up interrupt endpoint */
+ intf = usb_ifnum_to_if(instance->u.usb_dev, 0);
+ if (intf && !usb_driver_claim_interface(&speedtch_usb_driver, intf, NULL)) {
+
+ instance->int_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (instance->int_urb) {
+
+ usb_fill_int_urb(instance->int_urb, instance->u.usb_dev,
+ usb_rcvintpipe(instance->u.usb_dev, SPEEDTCH_ENDPOINT_INT),
+ instance->int_data,
+ sizeof(instance->int_data),
+ speedtch_handle_int, instance, 50);
+ err = usb_submit_urb(instance->int_urb, GFP_KERNEL);
+ if (err) {
+ /* Doesn't matter; we'll poll anyway */
+ dbg("speedtch_got_firmware: Submission of interrupt URB failed %d", err);
+ usb_free_urb(instance->int_urb);
+ instance->int_urb = NULL;
+ usb_driver_release_interface(&speedtch_usb_driver, intf);
+ }
+ }
+ }
+ /* Start status polling */
+ mod_timer(&instance->poll_timer, jiffies + (1 * HZ));
+
+ instance->u.status = UDSL_LOADED_FIRMWARE;
+ tasklet_schedule(&instance->u.receive_tasklet);
+ out:
+ up(&instance->u.serialize);
+ wake_up_interruptible(&instance->u.firmware_waiters);
+}
+
+static int speedtch_set_swbuff(struct speedtch_instance_data *instance,
+ int state)
+{
+ struct usb_device *dev = instance->u.usb_dev;
+ int ret;
+
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x32, 0x40, state ? 0x01 : 0x00,
+ 0x00, NULL, 0, 100);
+ if (ret < 0) {
+ printk("Warning: %sabling SW buffering: usb_control_msg returned %d\n",
+ state ? "En" : "Dis", ret);
+ return ret;
+ }
+
+ dbg("speedtch_set_swbuff: %sbled SW buffering", state ? "En" : "Dis");
+ return 0;
+}
+
+static void speedtch_test_sequence(struct speedtch_instance_data *instance)
+{
+ struct usb_device *dev = instance->u.usb_dev;
+ unsigned char buf[10];
+ int ret;
+
+ /* URB 147 */
+ buf[0] = 0x1c;
+ buf[1] = 0x50;
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x01, 0x40, 0x0b, 0x00, buf, 2, 100);
+ if (ret < 0)
+ printk(KERN_WARNING "%s failed on URB147: %d\n", __func__, ret);
+
+ /* URB 148 */
+ buf[0] = 0x32;
+ buf[1] = 0x00;
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x01, 0x40, 0x02, 0x00, buf, 2, 100);
+ if (ret < 0)
+ printk(KERN_WARNING "%s failed on URB148: %d\n", __func__, ret);
+
+ /* URB 149 */
+ buf[0] = 0x01;
+ buf[1] = 0x00;
+ buf[2] = 0x01;
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x01, 0x40, 0x03, 0x00, buf, 3, 100);
+ if (ret < 0)
+ printk(KERN_WARNING "%s failed on URB149: %d\n", __func__, ret);
+
+ /* URB 150 */
+ buf[0] = 0x01;
+ buf[1] = 0x00;
+ buf[2] = 0x01;
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x01, 0x40, 0x04, 0x00, buf, 3, 100);
+ if (ret < 0)
+ printk(KERN_WARNING "%s failed on URB150: %d\n", __func__, ret);
+}
+
+static int speedtch_start_synchro(struct speedtch_instance_data *instance)
+{
+ struct usb_device *dev = instance->u.usb_dev;
+ unsigned char buf[2];
+ int ret;
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x12, 0xc0, 0x04, 0x00,
+ buf, sizeof(buf), CTRL_TIMEOUT);
+ if (ret < 0) {
+ printk(KERN_WARNING "SpeedTouch: Failed to start ADSL synchronisation: %d\n", ret);
+ return ret;
+ }
+
+ dbg("speedtch_start_synchro: modem prodded. %d Bytes returned: %02x %02x", ret, buf[0], buf[1]);
+ return 0;
+}
+
+static void speedtch_handle_int(struct urb *urb, struct pt_regs *regs)
+{
+ struct speedtch_instance_data *instance = urb->context;
+ unsigned int count = urb->actual_length;
+ int ret;
+
+ /* The magic interrupt for "up state" */
+ const static unsigned char up_int[6] = { 0xa1, 0x00, 0x01, 0x00, 0x00, 0x00 };
+ /* The magic interrupt for "down state" */
+ const static unsigned char down_int[6] = { 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated; clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ goto exit;
+ }
+
+ if (count < 6) {
+ dbg("%s - int packet too short", __func__);
+ goto exit;
+ }
+
+ if (!memcmp(up_int, instance->int_data, 6)) {
+ del_timer(&instance->poll_timer);
+ printk(KERN_NOTICE "DSL line goes up\n");
+ } else if (!memcmp(down_int, instance->int_data, 6)) {
+ printk(KERN_NOTICE "DSL line goes down\n");
+ } else {
+ int i;
+
+ printk(KERN_DEBUG "Unknown interrupt packet of %d bytes:", count);
+ for (i = 0; i < count; i++)
+ printk(" %02x", instance->int_data[i]);
+ printk("\n");
+ }
+ schedule_work(&instance->poll_work);
+
+ exit:
+ rmb();
+ if (!instance->int_urb)
+ return;
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret)
+ err("%s - usb_submit_urb failed with result %d", __func__, ret);
+}
+
+static int speedtch_get_status(struct speedtch_instance_data *instance,
+ unsigned char *buf)
+{
+ struct usb_device *dev = instance->u.usb_dev;
+ int ret;
+
+ memset(buf, 0, TOTAL);
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x12, 0xc0, 0x07, 0x00, buf + OFFSET_7, SIZE_7,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ dbg("MSG 7 failed");
+ return ret;
+ }
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x12, 0xc0, 0x0b, 0x00, buf + OFFSET_b, SIZE_b,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ dbg("MSG B failed");
+ return ret;
+ }
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x12, 0xc0, 0x0d, 0x00, buf + OFFSET_d, SIZE_d,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ dbg("MSG D failed");
+ return ret;
+ }
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x01, 0xc0, 0x0e, 0x00, buf + OFFSET_e, SIZE_e,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ dbg("MSG E failed");
+ return ret;
+ }
+
+ ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ 0x01, 0xc0, 0x0f, 0x00, buf + OFFSET_f, SIZE_f,
+ CTRL_TIMEOUT);
+ if (ret < 0) {
+ dbg("MSG F failed");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void speedtch_poll_status(struct speedtch_instance_data *instance)
+{
+ unsigned char buf[TOTAL];
+ int ret;
+
+ ret = speedtch_get_status(instance, buf);
+ if (ret) {
+ printk(KERN_WARNING
+ "SpeedTouch: Error %d fetching device status\n", ret);
+ return;
+ }
+
+ dbg("Line state %02x", buf[OFFSET_7]);
+
+ switch (buf[OFFSET_7]) {
+ case 0:
+ if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
+ instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
+ printk(KERN_NOTICE "ADSL line is down\n");
+ }
+ break;
+
+ case 0x08:
+ if (instance->u.atm_dev->signal != ATM_PHY_SIG_UNKNOWN) {
+ instance->u.atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
+ printk(KERN_NOTICE "ADSL line is blocked?\n");
+ }
+ break;
+
+ case 0x10:
+ if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
+ instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
+ printk(KERN_NOTICE "ADSL line is synchronising\n");
+ }
+ break;
+
+ case 0x20:
+ if (instance->u.atm_dev->signal != ATM_PHY_SIG_FOUND) {
+ int down_speed = buf[OFFSET_b] | (buf[OFFSET_b + 1] << 8)
+ | (buf[OFFSET_b + 2] << 16) | (buf[OFFSET_b + 3] << 24);
+ int up_speed = buf[OFFSET_b + 4] | (buf[OFFSET_b + 5] << 8)
+ | (buf[OFFSET_b + 6] << 16) | (buf[OFFSET_b + 7] << 24);
+
+ if (!(down_speed & 0x0000ffff) &&
+ !(up_speed & 0x0000ffff)) {
+ down_speed >>= 16;
+ up_speed >>= 16;
+ }
+ instance->u.atm_dev->link_rate = down_speed * 1000 / 424;
+ instance->u.atm_dev->signal = ATM_PHY_SIG_FOUND;
+
+ printk(KERN_NOTICE
+ "ADSL line is up (%d Kib/s down | %d Kib/s up)\n",
+ down_speed, up_speed);
+ }
+ break;
+
+ default:
+ if (instance->u.atm_dev->signal != ATM_PHY_SIG_UNKNOWN) {
+ instance->u.atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
+ printk(KERN_NOTICE "Unknown line state %02x\n", buf[OFFSET_7]);
+ }
+ break;
+ }
+}
+
+static void speedtch_timer_poll(unsigned long data)
+{
+ struct speedtch_instance_data *instance = (void *)data;
+
+ schedule_work(&instance->poll_work);
+ mod_timer(&instance->poll_timer, jiffies + (5 * HZ));
+}
+
+#ifdef USE_FW_LOADER
+static void speedtch_upload_firmware(struct speedtch_instance_data *instance,
+ const struct firmware *fw1,
+ const struct firmware *fw2)
+{
+ unsigned char *buffer;
+ struct usb_device *usb_dev = instance->u.usb_dev;
+ struct usb_interface *intf;
+ int actual_length, ret;
+ int offset;
+
+ dbg("speedtch_upload_firmware");
+
+ if (!(intf = usb_ifnum_to_if(usb_dev, 2))) {
+ dbg("speedtch_upload_firmware: interface not found!");
+ goto fail;
+ }
+
+ if (!(buffer = (unsigned char *)__get_free_page(GFP_KERNEL))) {
+ dbg("speedtch_upload_firmware: no memory for buffer!");
+ goto fail;
+ }
+
+ /* A user-space firmware loader may already have claimed interface #2 */
+ if ((ret =
+ usb_driver_claim_interface(&speedtch_usb_driver, intf, NULL)) < 0) {
+ dbg("speedtch_upload_firmware: interface in use (%d)!", ret);
+ goto fail_free;
+ }
+
+ /* URB 7 */
+ if (dl_512_first) { /* some modems need a read before writing the firmware */
+ ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE),
+ buffer, 0x200, &actual_length, 2000);
+
+ 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);