diff options
| -rw-r--r-- | drivers/usb/atm/speedtch.c | 1085 |
1 files changed, 533 insertions, 552 deletions
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 233f922..6a6eaa2 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -5,6 +5,8 @@ * Copyright (C) 2003, Duncan Sands * Copyright (C) 2004, David Woodhouse * + * Based on "modem_run.c", copyright (C) 2001, Benoit Papillault + * * 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) @@ -21,819 +23,798 @@ * ******************************************************************************/ -#include <linux/module.h> -#include <linux/moduleparam.h> +#include <asm/page.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/firmware.h> #include <linux/gfp.h> +#include <linux/init.h> #include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/errno.h> -#include <linux/proc_fs.h> +#include <linux/module.h> +#include <linux/moduleparam.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" +#include <linux/stat.h> +#include <linux/timer.h> +#include <linux/workqueue.h> -#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE) -# define USE_FW_LOADER -#endif +#include "usbatm.h" #define DRIVER_AUTHOR "Johan Verrept, Duncan Sands <duncan.sands@free.fr>" -#define DRIVER_VERSION "1.8" +#define DRIVER_VERSION "1.9" #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 +#define CTRL_TIMEOUT 2000 /* milliseconds */ +#define DATA_TIMEOUT 2000 /* milliseconds */ -/* 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 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 -#define SIZE_7 1 -#define SIZE_b 8 -#define SIZE_d 4 -#define SIZE_e 1 -#define SIZE_f 1 +#define MIN_POLL_DELAY 5000 /* milliseconds */ +#define MAX_POLL_DELAY 60000 /* milliseconds */ -static int dl_512_first = 0; -static int sw_buffering = 0; +#define RESUBMIT_DELAY 1000 /* milliseconds */ -module_param(dl_512_first, bool, 0444); -MODULE_PARM_DESC(dl_512_first, "Read 512 bytes before sending firmware"); +#define DEFAULT_ALTSETTING 1 +#define DEFAULT_DL_512_FIRST 0 +#define DEFAULT_SW_BUFFERING 0 -module_param(sw_buffering, uint, 0444); -MODULE_PARM_DESC(sw_buffering, "Enable software buffering"); +static int altsetting = DEFAULT_ALTSETTING; +static int dl_512_first = DEFAULT_DL_512_FIRST; +static int sw_buffering = DEFAULT_SW_BUFFERING; -#define UDSL_IOCTL_LINE_UP 1 -#define UDSL_IOCTL_LINE_DOWN 2 +module_param(altsetting, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(altsetting, + "Alternative setting for data interface (default: " + __MODULE_STRING(DEFAULT_ALTSETTING) ")"); -#define SPEEDTCH_ENDPOINT_INT 0x81 -#define SPEEDTCH_ENDPOINT_DATA 0x07 -#define SPEEDTCH_ENDPOINT_FIRMWARE 0x05 +module_param(dl_512_first, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(dl_512_first, + "Read 512 bytes before sending firmware (default: " + __MODULE_STRING(DEFAULT_DL_512_FIRST) ")"); -#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) ) +module_param(sw_buffering, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(sw_buffering, + "Enable software buffering (default: " + __MODULE_STRING(DEFAULT_SW_BUFFERING) ")"); -static struct usb_device_id speedtch_usb_ids[] = { - {USB_DEVICE(SPEEDTOUCH_VENDORID, SPEEDTOUCH_PRODUCTID)}, - {} -}; +#define ENDPOINT_INT 0x81 +#define ENDPOINT_DATA 0x07 +#define ENDPOINT_FIRMWARE 0x05 -MODULE_DEVICE_TABLE(usb, speedtch_usb_ids); +#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c - '0') : ((c & 0xf) + 9) ) struct speedtch_instance_data { - struct udsl_instance_data u; + struct usbatm_data *usbatm; + + struct work_struct status_checker; - /* Status */ + int poll_delay; /* milliseconds */ + + struct timer_list resubmit_timer; 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, + unsigned char scratch_buffer[TOTAL]; }; /*************** ** firmware ** ***************/ -static void speedtch_got_firmware(struct speedtch_instance_data *instance, - int got_it) +static void speedtch_set_swbuff(struct speedtch_instance_data *instance, int state) { - 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; + struct usbatm_data *usbatm = instance->usbatm; + struct usb_device *usb_dev = usbatm->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; + ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + 0x32, 0x40, state ? 0x01 : 0x00, 0x00, NULL, 0, CTRL_TIMEOUT); + if (ret < 0) + usb_warn(usbatm, + "%sabling SW buffering: usb_control_msg returned %d\n", + state ? "En" : "Dis", ret); + else + dbg("speedtch_set_swbuff: %sbled SW buffering", state ? "En" : "Dis"); } static void speedtch_test_sequence(struct speedtch_instance_data *instance) { - struct usb_device *dev = instance->u.usb_dev; - unsigned char buf[10]; + struct usbatm_data *usbatm = instance->usbatm; + struct usb_device *usb_dev = usbatm->usb_dev; + unsigned char *buf = instance->scratch_buffer; 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); + ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + 0x01, 0x40, 0x0b, 0x00, buf, 2, CTRL_TIMEOUT); if (ret < 0) - printk(KERN_WARNING "%s failed on URB147: %d\n", __func__, ret); + usb_warn(usbatm, "%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); + ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + 0x01, 0x40, 0x02, 0x00, buf, 2, CTRL_TIMEOUT); if (ret < 0) - printk(KERN_WARNING "%s failed on URB148: %d\n", __func__, ret); + usb_warn(usbatm, "%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); + ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + 0x01, 0x40, 0x03, 0x00, buf, 3, CTRL_TIMEOUT); if (ret < 0) - printk(KERN_WARNING "%s failed on URB149: %d\n", __func__, ret); + usb_warn(usbatm, "%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); + ret = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + 0x01, 0x40, 0x04, 0x00, buf, 3, CTRL_TIMEOUT); if (ret < 0) - printk(KERN_WARNING "%s failed on URB150: %d\n", __func__, ret); + usb_warn(usbatm, "%s failed on URB150: %d\n", __func__, ret); } -static int speedtch_start_synchro(struct speedtch_instance_data *instance) +static int speedtch_upload_firmware(struct speedtch_instance_data *instance, + const struct firmware *fw1, + const struct firmware *fw2) { - struct usb_device *dev = instance->u.usb_dev; - unsigned char buf[2]; - int ret; + unsigned char *buffer; + struct usbatm_data *usbatm = instance->usbatm; + struct usb_interface *intf; + struct usb_device *usb_dev = usbatm->usb_dev; + int actual_length; + int ret = 0; + int offset; + + usb_dbg(usbatm, "%s entered\n", __func__); + + if (!(buffer = (unsigned char *)__get_free_page(GFP_KERNEL))) { + ret = -ENOMEM; + usb_dbg(usbatm, "%s: no memory for buffer!\n", __func__); + goto out; + } + + if (!(intf = usb_ifnum_to_if(usb_dev, 2))) { + ret = -ENODEV; + usb_dbg(usbatm, "%s: interface not found!\n", __func__); + goto out_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, ENDPOINT_FIRMWARE), + buffer, 0x200, &actual_length, 2000); + + if (ret < 0 && ret != -ETIMEDOUT) + usb_dbg(usbatm, "%s: read BLOCK0 from modem failed (%d)!\n", __func__, ret); + else + usb_dbg(usbatm, "%s: BLOCK0 downloaded (%d bytes)\n", __func__, 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, ENDPOINT_FIRMWARE), + buffer, thislen, &actual_length, DATA_TIMEOUT); + + if (ret < 0) { + usb_dbg(usbatm, "%s: write BLOCK1 to modem failed (%d)!\n", __func__, ret); + goto out_free; + } + usb_dbg(usbatm, "%s: BLOCK1 uploaded (%zu bytes)\n", __func__, fw1->size); + } + + /* USB led blinking green, ADSL led off */ + + /* URB 11 */ + ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, ENDPOINT_FIRMWARE), + buffer, 0x200, &actual_length, DATA_TIMEOUT); - 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; + usb_dbg(usbatm, "%s: read BLOCK2 from modem failed (%d)!\n", __func__, ret); + goto out_free; } + usb_dbg(usbatm, "%s: BLOCK2 downloaded (%d bytes)\n", __func__, actual_length); - dbg("speedtch_start_synchro: modem prodded. %d Bytes returned: %02x %02x", ret, buf[0], buf[1]); - return 0; + /* 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, ENDPOINT_FIRMWARE), + buffer, thislen, &actual_length, DATA_TIMEOUT); + + if (ret < 0) { + usb_dbg(usbatm, "%s: write BLOCK3 to modem failed (%d)!\n", __func__, ret); + goto out_free; + } + } + usb_dbg(usbatm, "%s: BLOCK3 uploaded (%zu bytes)\n", __func__, fw2->size); + + /* USB led static green, ADSL led static red */ + + /* URB 142 */ + ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, ENDPOINT_FIRMWARE), + buffer, 0x200, &actual_length, DATA_TIMEOUT); + + if (ret < 0) { + usb_dbg(usbatm, "%s: read BLOCK4 from modem failed (%d)!\n", __func__, ret); + goto out_free; + } + + /* success */ + usb_dbg(usbatm, "%s: BLOCK4 downloaded (%d bytes)\n", __func__, actual_length); + + /* Delay to allow firmware to start up. We can do this here + because we're in our own kernel thread anyway. */ + msleep_interruptible(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); + + ret = 0; + +out_free: + free_page((unsigned long)buffer); +out: + return ret; } -static void speedtch_handle_int(struct urb *urb, struct pt_regs *regs) +static int speedtch_find_firmware(struct usb_interface *intf, int phase, + const struct firmware **fw_p) { - struct speedtch_instance_data *instance = urb->context; - unsigned int count = urb->actual_length; - int ret; + struct device *dev = &intf->dev; + const u16 bcdDevice = le16_to_cpu(interface_to_usbdev(intf)->descriptor.bcdDevice); + const u8 major_revision = bcdDevice >> 8; + const u8 minor_revision = bcdDevice & 0xff; + char buf[24]; - /* 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 }; + sprintf(buf, "speedtch-%d.bin.%x.%02x", phase, major_revision, minor_revision); + dev_dbg(dev, "%s: looking for %s\n", __func__, buf); - 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 (request_firmware(fw_p, buf, dev)) { + sprintf(buf, "speedtch-%d.bin.%x", phase, major_revision); + dev_dbg(dev, "%s: looking for %s\n", __func__, buf); - if (count < 6) { - dbg("%s - int packet too short", __func__); - goto exit; + if (request_firmware(fw_p, buf, dev)) { + sprintf(buf, "speedtch-%d.bin", phase); + dev_dbg(dev, "%s: looking for %s\n", __func__, buf); + + if (request_firmware(fw_p, buf, dev)) { + dev_warn(dev, "no stage %d firmware found!\n", phase); + return -ENOENT; + } + } } - 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; + dev_info(dev, "found stage %d firmware %s\n", phase, buf); - printk(KERN_DEBUG "Unknown interrupt packet of %d bytes:", count); - for (i = 0; i < count; i++) - printk(" %02x", instance->int_data[i]); - printk("\n"); + return 0; +} + +static int speedtch_heavy_init(struct usbatm_data *usbatm, struct usb_interface *intf) +{ + const struct firmware *fw1, *fw2; + struct speedtch_instance_data *instance = usbatm->driver_data; + int ret; + + if ((ret = speedtch_find_firmware(intf, 1, &fw1)) < 0) + return ret; + + if ((ret = speedtch_find_firmware(intf, 2, &fw2)) < 0) { + release_firmware(fw1); + return ret; } - schedule_work(&instance->poll_work); - exit: - rmb(); - if (!instance->int_urb) - return; + ret = speedtch_upload_firmware(instance, fw1, fw2); + + release_firmware(fw2); + release_firmware(fw1); - ret = usb_submit_urb(urb, GFP_ATOMIC); - if (ret) - err("%s - usb_submit_urb failed with result %d", __func__, ret); + return ret; } -static int speedtch_get_status(struct speedtch_instance_data *instance, - unsigned char *buf) + +/********** +** ATM ** +**********/ + +static int speedtch_read_status(struct speedtch_instance_data *instance) { - struct usb_device *dev = instance->u.usb_dev; + struct usbatm_data *usbatm = instance->usbatm; + struct usb_device *usb_dev = usbatm->usb_dev; + unsigned char *buf = instance->scratch_buffer; int ret; memset(buf, 0, TOTAL); - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), 0x12, 0xc0, 0x07, 0x00, buf + OFFSET_7, SIZE_7, CTRL_TIMEOUT); if (ret < 0) { - dbg("MSG 7 failed"); + atm_dbg(usbatm, "%s: MSG 7 failed\n", __func__); return ret; } - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), 0x12, 0xc0, 0x0b, 0x00, buf + OFFSET_b, SIZE_b, CTRL_TIMEOUT); if (ret < 0) { - dbg("MSG B failed"); + atm_dbg(usbatm, "%s: MSG B failed\n", __func__); return ret; } - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), 0x12, 0xc0, 0x0d, 0x00, buf + OFFSET_d, SIZE_d, CTRL_TIMEOUT); if (ret < 0) { - dbg("MSG D failed"); + atm_dbg(usbatm, "%s: MSG D failed\n", __func__); return ret; } - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), 0x01, 0xc0, 0x0e, 0x00, buf + OFFSET_e, SIZE_e, CTRL_TIMEOUT); if (ret < 0) { - dbg("MSG E failed"); + atm_dbg(usbatm, "%s: MSG E failed\n", __func__); return ret; } - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), 0x01, 0xc0, 0x0f, 0x00, buf + OFFSET_f, SIZE_f, CTRL_TIMEOUT); if (ret < 0) { - dbg("MSG F failed"); + atm_dbg(usbatm, "%s: MSG F failed\n", __func__); return ret; } return 0; } -static void speedtch_poll_status(struct speedtch_instance_data *instance) +static int speedtch_start_synchro(struct speedtch_instance_data *instance) { - unsigned char buf[TOTAL]; + struct usbatm_data *usbatm = instance->usbatm; + struct usb_device *usb_dev = usbatm->usb_dev; + unsigned char *buf = instance->scratch_buffer; int ret; - ret = speedtch_get_status(instance, buf); - if (ret) { - printk(KERN_WARNING - "SpeedTouch: Error %d fetching device status\n", ret); + atm_dbg(usbatm, "%s entered\n", __func__); + + memset(buf, 0, 2); + + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + 0x12, 0xc0, 0x04, 0x00, + buf, 2, CTRL_TIMEOUT); + + if (ret < 0) + atm_warn(usbatm, "failed to start ADSL synchronisation: %d\n", ret); + else + atm_dbg(usbatm, "%s: modem prodded. %d bytes returned: %02x %02x\n", + __func__, ret, buf[0], buf[1]); + + return ret; +} + +static void speedtch_check_status(struct speedtch_instance_data *instance) +{ + struct usbatm_data *usbatm = instance->usbatm; + struct atm_dev *atm_dev = usbatm->atm_dev; + unsigned char *buf = instance->scratch_buffer; + int ret; + + atm_dbg(usbatm, "%s entered\n", __func__); + + ret = speedtch_read_status(instance); + if (ret < 0) { + atm_warn(usbatm, "error %d fetching device status\n", ret); + if (instance->poll_delay < MAX_POLL_DELAY) + instance->poll_delay *= 2; return; } - dbg("Line state %02x", buf[OFFSET_7]); + if (instance->poll_delay > MIN_POLL_DELAY) + instance->poll_delay /= 2; + + atm_dbg(usbatm, "%s: line state %02x\n", __func__, 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"); + if (atm_dev->signal != ATM_PHY_SIG_LOST) { + atm_dev->signal = ATM_PHY_SIG_LOST; + atm_info(usbatm, "ADSL line is down\n"); + /* It'll never resync again unless we ask it to... */ + ret = speedtch_start_synchro(instance); } 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"); + if (atm_dev->signal != ATM_PHY_SIG_UNKNOWN) { + atm_dev->signal = ATM_PHY_SIG_UNKNOWN; + atm_info(usbatm, "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"); + if (atm_dev->signal != ATM_PHY_SIG_LOST) { + atm_dev->signal = ATM_PHY_SIG_LOST; + atm_info(usbatm, "ADSL line is synchronising\n"); } break; case 0x20: - if (instance->u.atm_dev->signal != ATM_PHY_SIG_FOUND) { + if (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)) { + 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); + atm_dev->link_rate = down_speed * 1000 / 424; + atm_dev->signal = ATM_PHY_SIG_FOUND; + + atm_info(usbatm, + "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]); + if (atm_dev->signal != ATM_PHY_SIG_UNKNOWN) { + atm_dev->signal = ATM_PHY_SIG_UNKNOWN; + atm_info(usbatm, "Unknown line state %02x\n", buf[OFFSET_7]); } break; } } -static void speedtch_timer_poll(unsigned long data) +static void speedtch_status_poll(unsigned long data) { struct speedtch_instance_data *instance = (void *)data; - schedule_work(&instance->poll_work); - mod_timer(&instance->poll_timer, jiffies + (5 * HZ)); + schedule_work(&instance->status_checker); + + /* The following check is racy, but the race is harmless */ + if (instance->poll_delay < MAX_POLL_DELAY) + mod_timer(&instance->status_checker.timer, jiffies + msecs_to_jiffies(instance->poll_delay)); + else + atm_warn(instance->usbatm, "Too many failures - disabling line status polling\n"); } -#ifdef USE_FW_LOADER -static void speedtch_upload_firmware(struct speedtch_instance_data *instance, - const struct firmware *fw1, - const struct firmware *fw2) +static void speedtch_resubmit_int(unsigned long data) { - 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); + struct speedtch_instance_data *instance = (void *)data; + struct urb *int_urb = instance->int_urb; + int ret; - ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE), - buffer, thislen, &actual_length, DATA_TIMEOUT); + atm_dbg(instance->usbatm, "%s entered\n", __func__); - if (ret < 0) { - dbg("speedtch_upload_firmware: write BLOCK1 to modem failed (%d)!", ret); - goto fail_release; + if (int_urb) { + ret = usb_submit_urb(int_urb, GFP_ATOMIC); + if (!ret) + schedule_work(&instance->status_checker); + else { + atm_dbg(instance->usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret); + mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY)); } - dbg("speedtch_upload_firmware: BLOCK1 uploaded (%zu bytes)", fw1->size); } +} - /* USB led blinking green, ADSL led off */ +static void speedtch_handle_int(struct urb *int_urb, struct pt_regs *regs) +{ + struct speedtch_instance_data *instance = int_urb->context; + struct usbatm_data *usbatm = instance->usbatm; + unsigned int count = int_urb->actual_length; + int ret = int_urb->status; - /* URB 11 */ - ret = usb_bulk_msg(usb_dev, usb_rcvbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE), - buffer, 0x200, &actual_length, DATA_TIMEOUT); + /* 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 }; + + atm_dbg(usbatm, "%s entered\n", __func__); if (ret < 0) { - dbg("speedtch_upload_firmware: read BLOCK2 from modem failed (%d)!", ret); - goto fail_release; + atm_dbg(usbatm, "%s: nonzero urb status %d!\n", __func__, ret); + goto fail; } - 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); + if ((count == 6) && !memcmp(up_int, instance->int_data, 6)) { + del_timer(&instance->status_checker.timer); + atm_info(usbatm, "DSL line goes up\n"); + } else if ((count == 6) && !memcmp(down_int, instance->int_data, 6)) { + atm_info(usbatm, "DSL line goes down\n"); + } else { + int i; - ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, SPEEDTCH_ENDPOINT_FIRMWARE), - buffer, thislen, &actual_length, DATA_TIMEOUT); + atm_dbg(usbatm, "%s: unknown interrupt packet of length %d:", __func__, count); + for (i = 0; i < count; i++) + printk(" %02x", instance->int_data[i]); + printk("\n"); + goto fail; + } + if ((int_urb = instance->int_urb)) { + ret = usb_submit_urb(int_urb, GFP_ATOMIC); + schedule_work(&instance->status_checker); if (ret < 0) { - dbg("speedtch_upload_firmware: write BLOCK3 to modem failed (%d)!", ret); - goto fail_release; + atm_dbg(usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret); + goto fail; } } - 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); +fail: + if ((int_urb = instance->int_urb)) + mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY)); } -static int speedtch_find_firmware(struct speedtch_instance_data - *instance, int phase, - const struct firmware **fw_p) +static int speedtch_atm_start(struct usbatm_data *usbatm, struct atm_dev *atm_dev) { - 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); + struct usb_device *usb_dev = usbatm->usb_dev; + struct speedtch_instance_data *instance = usbatm->driver_data; + int i, ret; + unsigned char mac_str[13]; - 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); + atm_dbg(usbatm, "%s entered\n", __func__); - 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; - } - } + if ((ret = usb_set_interface(usb_dev, 1, altsetting)) < 0) { + atm_dbg(usbatm, "%s: usb_set_interface returned %d!\n", __func__, ret); + return ret; } - 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); + /* Set MAC address, it is stored in the serial number */ + memset(atm_dev->esi, 0, sizeof(atm_dev->esi)); + if (usb_string(usb_dev, usb_dev->descriptor.iSerialNumber, mac_str, sizeof(mac_str)) == 12) { + for (i = 0; i < 6; i++) + atm_dev->esi[i] = (hex2int(mac_str[i * 2]) * 16) + (hex2int(mac_str[i * 2 + 1])); + } - daemonize("firmware/speedtch"); + /* Start modem synchronisation */ + ret = speedtch_start_synchro(instance); - if (!speedtch_find_firmware(instance, 1, &fw1)) { - if (!speedtch_find_firmware(instance, 2, &fw2)) { - speedtch_upload_firmware(instance, fw1, fw2); - release_firmware(fw2); + /* Set up interrupt endpoint */ + if (instance->int_urb) { + ret = usb_submit_urb(instance->int_urb, GFP_KERNEL); + if (ret < 0) { + /* Doesn't matter; we'll poll anyway */ + atm_dbg(usbatm, "%s: submission of interrupt URB failed (%d)!\n", __func__, ret); + usb_free_urb(instance->int_urb); + instance->int_urb = NULL; } - 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); + /* Start status polling */ + mod_timer(&instance->status_checker.timer, jiffies + msecs_to_jiffies(1000)); - 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) +static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_dev) { -#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; - } + struct speedtch_instance_data *instance = usbatm->driver_data; + struct urb *int_urb = instance->int_urb; + + atm_dbg(usbatm, "%s entered\n", __func__); + + del_timer_sync(&instance->status_checker.timer); + + /* + * Since resubmit_timer and int_urb can schedule themselves and + * each other, shutting them down correctly takes some care + */ + instance->int_urb = NULL; /* signal shutdown */ + mb(); + usb_kill_urb(int_urb); + del_timer_sync(&instance->resubmit_timer); + /* + * At this point, speedtch_handle_int and speedtch_resubmit_int + * can run or be running, but instance->int_urb == NULL means that + * they will not reschedule + */ + usb_kill_urb(int_urb); + del_timer_sync(&instance->resubmit_timer); + usb_free_urb(int_urb); - instance->u.status = UDSL_LOADING_FIRMWARE; - up(&instance->u.serialize); + flush_scheduled_work(); +} -#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); +/********** +** USB ** +**********/ - if (ret >= 0) - return; /* OK */ +static struct usb_device_id speedtch_usb_ids[] = { + {USB_DEVICE(0x06b9, 0x4061)}, + {} +}; - dbg("speedtch_firmware_start: kernel_thread failed (%d)!", ret); +MODULE_DEVICE_TABLE(usb, speedtch_usb_ids); - module_put(THIS_MODULE); - udsl_put_instance(&instance->u); - /* Just pretend it never happened... hope modem_run happens */ -#endif /* USE_FW_LOADER */ +static int speedtch_usb_probe(struct usb_interface *, const struct usb_device_id *); - speedtch_got_firmware(instance, 0); -} - -static int speedtch_firmware_wait(struct udsl_instance_data *instance) -{ - speedtch_firmware_start((void *)instance); +static struct usb_driver speedtch_usb_driver = { + .owner = THIS_MODULE, + .name = speedtch_driver_name, + .probe = speedtch_usb_probe, + .disconnect = usbatm_usb_disconnect, + .id_table = speedtch_usb_ids +}; - if (wait_event_interruptible(instance->firmware_waiters, instance->status != UDSL_LOADING_FIRMWARE) < 0) - return -ERESTARTSYS; +static void speedtch_release_interfaces(struct usb_device *usb_dev, int num_interfaces) { + struct usb_interface *cur_intf; + int i; - return (instance->status == UDSL_LOADED_FIRMWARE) ? 0 : -EAGAIN; + for(i = 0; i < num_interfaces; i++) + if ((cur_intf = usb_ifnum_to_if(usb_dev, i))) { + usb_set_intfdata(cur_intf, NULL); + usb_driver_release_interface(&speedtch_usb_driver, cur_intf); + } } -/********** -** USB ** -**********/ - -static int speedtch_usb_ioctl(struct usb_interface *intf, unsigned int code, - void *user_data) +static int speedtch_bind(struct usbatm_data *usbatm, + struct usb_interface *intf, + const struct usb_device_id *id, + int *need_heavy_init) { - struct speedtch_instance_data *instance = usb_get_intfdata(intf); + struct usb_device *usb_dev = interface_to_usbdev(intf); + struct usb_interface *cur_intf; + struct speedtch_instance_data *instance; + int ifnum = intf->altsetting->desc.bInterfaceNumber; + int num_interfaces = usb_dev->actconfig->desc.bNumInterfaces; + int i, ret; - dbg("speedtch_usb_ioctl entered"); + usb_dbg(usbatm, "%s entered\n", __func__); - if (!instance) { - dbg("speedtch_usb_ioctl: NULL instance!"); + if (usb_dev->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) { + usb_dbg(usbatm, "%s: wrong device class %d\n", __func__, usb_dev->descriptor.bDeviceClass); 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; - } -} + /* claim all interfaces */ -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]; + for (i=0; i < num_interfaces; i++) { + cur_intf = usb_ifnum_to_if(usb_dev, i); - 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 ((i != ifnum) && cur_intf) { + ret = usb_driver_claim_interface(&speedtch_usb_driver, cur_intf, usbatm); - if ((dev->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) || - (ifnum != 1)) - return -ENODEV; - - dbg("speedtch_usb_probe: device accepted"); + if (ret < 0) { + usb_dbg(usbatm, "%s: failed to claim interface %d (%d)\n", __func__, i, ret); + speedtch_release_interfaces(usb_dev, i); + return ret; + } + } + } - /* instance init */ instance = kmalloc(sizeof(*instance), GFP_KERNEL); + if (!instance) { - dbg("speedtch_usb_probe: no memory for instance data!"); - return -ENOMEM; + usb_dbg(usbatm, "%s: no memory for instance data!\n", __func__); + ret = -ENOMEM; + goto fail_release; } memset(instance, 0, sizeof(struct speedtch_instance_data)); - if ((ret = usb_set_interface(dev, 0, 0)) < 0) - goto fail; + instance->usbatm = usbatm; - if ((ret = usb_set_interface(dev, 2, 0)) < 0) - goto fail; + INIT_WORK(&instance->status_checker, (void *)speedtch_check_status, instance); - instance->u.data_endpoint = SPEEDTCH_ENDPOINT_DATA; - instance->u.firmware_wait = speedtch_firmware_wait; - instance->u.driver_name = speedtch_driver_name; + instance->status_checker.timer.function = speedtch_status_poll; + instance->status_checker.timer.data = (unsigned long)instance; + instance->poll_delay = MIN_POLL_DELAY; - ret = udsl_instance_setup(dev, &instance->u); - if (ret) - goto fail; + init_timer(&instance->resubmit_timer); + instance->resubmit_timer.function = speedtch_resubmit_int; + instance->resubmit_timer.data = (unsigned long)instance; - init_timer(&instance->poll_timer); - instance->poll_timer.function = speedtch_timer_poll; - instance->poll_timer.data = (unsigned long)instance; + instance->int_urb = usb_alloc_urb(0, GFP_KERNEL); - INIT_WORK(&instance->poll_work, (void *)speedtch_poll_status, instance); + if (instance->int_urb) + usb_fill_int_urb(instance->int_urb, usb_dev, + usb_rcvintpipe(usb_dev, ENDPOINT_INT), + instance->int_data, sizeof(instance->int_data), + speedtch_handle_int, instance, 50); + else + usb_dbg(usbatm, "%s: no memory for interrupt urb!\n", __func__); - /* 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])); - } + /* check whether the modem already seems to be alive */ + ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + 0x12, 0xc0, 0x07, 0x00, + instance->scratch_buffer + OFFSET_7, SIZE_7, 500); - /* 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); + *need_heavy_init = (ret != SIZE_7); - 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_dbg(usbatm, "%s: firmware %s loaded\n", __func__, need_heavy_init ? "not" : "already"); + + if (*need_heavy_init) + if ((ret = usb_reset_device(usb_dev)) < 0) + goto fail_free; - usb_set_intfdata(intf, instance); + usbatm->driver_data = instance; return 0; - fail: +fail_free: + usb_free_urb(instance->int_urb); kfree(instance); - - return -ENOMEM; +fail_release: + speedtch_release_interfaces(usb_dev, num_interfaces); + return ret; } -static void speedtch_usb_disconnect(struct usb_interface *intf) +static void speedtch_unbind(struct usbatm_data *usbatm, 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; - } + struct usb_device *usb_dev = interface_to_usbdev(intf); + struct speedtch_instance_data *instance = usbatm->driver_data; -/*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); - } + usb_dbg(usbatm, "%s entered\n", __func__); - 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); + speedtch_release_interfaces(usb_dev, usb_dev->actconfig->desc.bNumInterfaces); + usb_free_urb(instance->int_urb); + kfree(instance); } + /*********** ** init ** ***********/ +static struct usbatm_driver speedtch_usbatm_driver = { + .owner = THIS_MODULE, + .driver_name = speedtch_driver_name, + .bind = speedtch_bind, + .heavy_init = speedtch_heavy_init, + .unbind = speedtch_unbind, + .atm_start = speedtch_atm_start, + .atm_stop = speedtch_atm_stop, + .in = ENDPOINT_DATA, + .out = ENDPOINT_DATA +}; + +static int speedtch_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + return usbatm_usb_probe(intf, id, &speedtch_usbatm_driver); +} + static int __init speedtch_usb_init(void) { - dbg("speedtch_usb_init: driver version " DRIVER_VERSION); + dbg("%s: driver version %s", __func__, DRIVER_VERSION); return usb_register(&speedtch_usb_driver); } static void __exit speedtch_usb_cleanup(void) { - dbg("speedtch_usb_cleanup entered"); + dbg("%s", __func__); usb_deregister(&speedtch_usb_driver); } |
