Zyxel 630-11/13 and Asus AAM600UG ADSL USB modem
Aurelio Arroyo
listas_sk3 at yahoo.es
Sun Jan 16 19:13:12 EST 2005
It is the the first public version of amedyn module
for the new usb_atm.
Test by me whit Zyxel 630-11 and kernel 2.6.10 in FC3.
And by Emmanuel Counasse whit Asus AAM600UG and kernel
2.6.9 in Debian Sid.
CVS at :
http://cvs.sourceforge.net/viewcvs.py/zyxel630-11/amedyn2/module/
For full package:
- cvs
-d:pserver:anonymous at cvs.sourceforge.net:/cvsroot/zyxel630-11
login
- cvs -z3
-d:pserver:anonymous at cvs.sourceforge.net:/cvsroot/zyxel630-11
co -P amedyn2
---------------------------
/******************************************************************************
* amedyn.c - Zyxel 630-11/13 and Asus AAM600UG ALC
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 "Aurelio Arroyo, Josep Comas,
David Woodhouse, Duncan Sands"
#define DRIVER_VERSION "0.8"
#define DRIVER_DESC "Zyxel 630-11/13 and Asus AAM600UG
ALC USB driver version " DRIVER_VERSION
static const char amedyn_driver_name[] = "amedyn";
/* Alcatel Microelectronics new reference design */
#define AME_VENDORID2 0x06b9 /* Vendor =
Zyxel */
#define AME_PRODUCTID2 0xa5a5 /* Product =
630-11 & 630-13 */
#define AME_VENDORID3 0x0b05 /* Vendor =
Asustek */
#define AME_PRODUCTID3 0x6206 /* Product =
AAM6000UG with Alcatel chipset */
/* Modem types */
#define UDSL_MODEM_TYPE1 0 /* Alcatel
reference design */
#define UDSL_MODEM_TYPE2 1 /* Conexant
reference design */
#define UDSL_MODEM_TYPE3 2 /* 3Com
reference design (Alcatel DSP) */
/* Timeout in jiffies */
#define CTRL_TIMEOUT (2*HZ)
#define DATA_TIMEOUT (2*HZ)
#define ANALOG 0x15
#define ISDN 0x11
static int linetype = 0;
module_param(linetype, uint, 0444);
MODULE_PARM_DESC(linetype, "Set phone line type
code");
#define UDSL_IOCTL_LINE_UP 1
#define UDSL_IOCTL_LINE_DOWN 2
#define AMEDYN_ENDPOINT_DATA_OUT 0x07
#define AMEDYN_ENDPOINT_DATA_IN 0x87
#define AMEDYN_ENDPOINT_FIRMWARE_OUT 0x05
// from the userspace tool
#define AMEDYN_USB_IN_INFO 0x81 // IN endpoint
address, read modem status /
#define AMEDYN_USB_OUT_INFO 0x01 // OUT endpoint
address /
#define AMEDYN_USB_IN_FIRM 0x85 // IN endpoint
address, read config /
#define AMEDYN_USB_OUT_FIRM 0x05 // OUT endpoint
address, send firmware /
#define AMEDYN_VENDOR_REQUEST_OUT 0x40 /* Vendor
specific requests, OUT direction */
#define AMEDYN_VENDOR_REQUEST_IN 0xC0 /* Vendor
specific requets, IN direction */
#define hex2int(c) ( (c >= '0') && (c <= '9') ? (c -
'0') : ((c & 0xf) + 9) )
static struct usb_device_id amedyn_usb_ids[] = {
{USB_DEVICE(AME_VENDORID2, AME_PRODUCTID2)},
{USB_DEVICE(AME_VENDORID3, AME_PRODUCTID3)},
{}
};
MODULE_DEVICE_TABLE(usb, amedyn_usb_ids);
struct amedyn_instance_data {
struct udsl_instance_data u;
int datamax; /* maximum data that we can send in a
block */
char *initfirmfile; /* init firmware file name */
char *firmfile; /* firmware file name */
char linetype; /* 0x15 = analog line, 0x11 ISDN line
*/
unsigned char bufconf[8]; /* buffer to save config
bytes */
int resynconlost; /* Resync line if it is lost?*/
/* Status */
struct work_struct poll_work;
struct timer_list poll_timer;
};
/* USB */
static int amedyn_usb_probe(struct usb_interface
*intf,
const struct usb_device_id *id);
static void amedyn_usb_disconnect(struct usb_interface
*intf);
static int amedyn_usb_ioctl(struct usb_interface
*intf, unsigned int code,
void *user_data);
static void amedyn_poll_status(struct
amedyn_instance_data *instance);
static struct usb_driver amedyn_usb_driver = {
.owner = THIS_MODULE,
.name = amedyn_driver_name,
.probe = amedyn_usb_probe,
.disconnect = amedyn_usb_disconnect,
.ioctl = amedyn_usb_ioctl,
.id_table = amedyn_usb_ids,
};
/***************
** firmware **
***************/
static void amedyn_got_firmware(struct
amedyn_instance_data *instance,
int got_it)
{
int err;
down(&instance->u.serialize); /* vs self,
amedyn_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("amedyn_got_firmware: usb_set_interface returned
%d!", err);
instance->u.status = UDSL_NO_FIRMWARE;
goto out;
}
/* 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 amedyn_line_down_signal (struct
amedyn_instance_data *instance)
{
struct usb_device *dev = instance->u.usb_dev;
unsigned char buf[0x1ff];
int ret;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x03, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x00,
buf, 0x00, CTRL_TIMEOUT);
if (ret < 0) {
dbg("amedyn: Failed sync down command: %d\n", ret);
return ret; }
dbg("amedyn: OK sync dowm command");
return 0;
}
static int amedyn_get_status(struct
amedyn_instance_data *instance,
unsigned char *buf)
{
struct usb_device *dev = instance->u.usb_dev;
int ret;
memset(buf, 0, 0x10);
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
/* If buf isn't line status info or a error code try
again*/
if ( buf[0] != 0x01 && ret > 2
&& instance->u.atm_dev->signal !=
ATM_PHY_SIG_FOUND ) {
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
}
/* If buf isn't line status info or a error code try
again, again */
if ( buf[0] != 0x01 && ret > 2
&& instance->u.atm_dev->signal !=
ATM_PHY_SIG_FOUND ) {
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
}
/* If buf isn't line status info or a error code try
again, again, again*/
if ( buf[0] != 0x01 && ret > 2
&& instance->u.atm_dev->signal !=
ATM_PHY_SIG_FOUND ) {
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
}
/* If buf isn't line status info or a error code try
again, again, again, again*/
if ( buf[0] != 0x01 && ret > 2
&& instance->u.atm_dev->signal !=
ATM_PHY_SIG_FOUND ) {
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
}
/* If buf isn't line status info or a error code try
again, again, again, again, again*/
if ( buf[0] != 0x01 && ret > 2
&& instance->u.atm_dev->signal !=
ATM_PHY_SIG_FOUND ) {
ret= usb_bulk_msg (dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("Error retrieving info!");
return ret;
}
}
return 0;
}
static int amedyn_start_synchro(struct
amedyn_instance_data *instance)
{
struct usb_device *dev = instance->u.usb_dev;
unsigned char buf[0x1ff]; /* buffer */
int ret, i;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x0b, AMEDYN_VENDOR_REQUEST_OUT, 0x0c, 0x00,
NULL, 0x00, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 1:
%d\n", __func__, ret);
return ret; }
for (i = 0xba; i <= 0xc1; i++) {
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x06, AMEDYN_VENDOR_REQUEST_OUT, 0x03, i,
&(instance->bufconf[i-0xba]), 0x01,
CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 2:
%d\n", __func__, ret);
return ret; }
}
/* set AFE value, R_Function_Code = 0x15 (adjust
Alcatel DSP for our configuration) */
/* 0x1fd in CTRLE protocol */
/* 0x15 = analog line, 0x11 ISDN line */
buf[0] = instance->linetype;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x06, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x1fd,
buf, 0x01, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 3:
%d\n", __func__, ret);
return ret; }
buf[0] = 0x01;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x06, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x4a,
buf, 0x01, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 4:
%d\n", __func__, ret);
return ret; }
buf[0] = 0x00;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x06, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x4b,
buf, 0x01, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 5:
%d\n", __func__, ret);
return ret; }
buf[0] = 0x00;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x06, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x4c,
buf, 0x01, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 6:
%d\n", __func__, ret);
return ret; }
/* Only this command seem to be necesary to resync. */
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x02, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x00,
NULL, 0x00, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 7:
%d\n", __func__, ret);
return ret; }
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
0x0e, AMEDYN_VENDOR_REQUEST_IN, 0x03, 0x00,
buf, 0x0c, CTRL_TIMEOUT);
if (ret < 0) {
printk(KERN_WARNING "%s failed on local urb 8:
%d\n", __func__, ret);
return ret; }
dbg("amedyn_start_synchro: send sync signals.");
return 0;
}
static void amedyn_poll_status(struct
amedyn_instance_data *instance)
{
unsigned char buf[0x10];
int ret;
ret = amedyn_get_status(instance, buf);
if (ret) {
printk(KERN_WARNING
"Zyxel: Error %d fetching device status\n",
ret);
return;
}
if ( buf[0] == 0x02 ) {
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");
}
dbg("Line sync lost?");
if ( instance->resynconlost == 1 ) {
amedyn_line_down_signal (instance);
amedyn_start_synchro(instance);
}
}
if ( buf[0] == 0x40 ) {
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");
}
dbg("Line sync faild with code: %02x", buf[1]);
if ( instance->resynconlost == 1 ) {
amedyn_line_down_signal (instance);
amedyn_start_synchro(instance);
}
}
if ( buf[0] == 0x01 )
dbg("Line state %02x", buf[1]);
else {
// printk(KERN_NOTICE "amedyn_get_status return
useless info\n");
return ;
}
switch (buf[1]) {
case 0x00:
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 ( instance->resynconlost == 1 ) {
amedyn_line_down_signal (instance);
amedyn_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");
}
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) {
instance->u.atm_dev->signal = ATM_PHY_SIG_FOUND;
mod_timer(&instance->poll_timer, jiffies + (5 *
HZ));
printk(KERN_NOTICE "ADSL line is up\n");
}
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[1]);
}
break;
}
}
static void amedyn_timer_poll(unsigned long data)
{
struct amedyn_instance_data *instance = (void *)data;
schedule_work(&instance->poll_work);
mod_timer(&instance->poll_timer, jiffies + (1 * HZ));
}
#ifdef USE_FW_LOADER
/* From userspace tool */
int jump_to_address(struct amedyn_instance_data
*instance, unsigned int place)
{
struct usb_device *dev = instance->u.usb_dev;
unsigned char buf[6]; /* buffer */
buf[0] = 0x08; // Command (= set base address)
buf[1] = 0x04; // Length (= 4 bytes)
// Value (base address = place)
buf[2] = (place >> 24) & 0xff;
buf[3] = (place >> 16) & 0xff;
buf[4] = (place >> 8) & 0xff;
buf[5] = place & 0xff;
if (usb_bulk_msg (dev, usb_sndbulkpipe(dev,
AMEDYN_USB_OUT_FIRM), buf, 6, NULL, DATA_TIMEOUT))
return -1;
buf[0] = 0x00; // Command (= jump?)
buf[1] = 0x01; // Length (= 1 byte)
buf[2] = 0x14; // Value (= jump to base address)
if (usb_bulk_msg (dev, usb_sndbulkpipe(dev,
AMEDYN_USB_OUT_FIRM), buf, 3, NULL, DATA_TIMEOUT))
return -1;
return 0;
}
/* From userspace tool */
/* format a message */
void format_message(int cmd, int ldata, int address,
char *bufin)
{
char buf[8]; /* initial bytes of a message */
memset(buf, 0, sizeof(buf));
buf[0] = cmd & 0xff; /* usb command */
/* address */
buf[2] = address & 0xff;
buf[3] = (address >> 8) & 0xff;
buf[4] = (address >> 16) & 0xff;
buf[5] = (address >> 24) & 0xff;
/* data length */
buf[6] = ldata & 0xff;
buf[7] = (ldata >> 8) & 0xff;
buf[1] = buf[6] + 6;
memcpy(bufin, buf, sizeof(buf));
}
/* From userspace tool */
int send_block(struct amedyn_instance_data *instance,
int place, char *bufin, int len)
{
struct usb_device *dev = instance->u.usb_dev;
char buf[0x1ff]; /* = modem_char.datamax + 8 */
if ((bufin == NULL) || (len > instance->datamax))
return -1;
memset(buf, 0, sizeof(buf));
format_message(0x88, len, place, buf);
memcpy(buf+8, bufin, len);
if (usb_bulk_msg (dev, usb_sndbulkpipe(dev,
AMEDYN_USB_OUT_FIRM), buf, len+8, NULL,
DATA_TIMEOUT))
return -1;
return 0;
}
static void amedyn_upload_firmware(struct
amedyn_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 ret;
int offset;
unsigned char buf[0x1ff];
char value; /* returned byte */
int i;
dbg("amedyn_upload_firmware");
if (!(intf = usb_ifnum_to_if(usb_dev, 2))) {
dbg("amedyn_upload_firmware: interface not found!");
goto fail;
}
if (!(buffer = (unsigned char
*)__get_free_page(GFP_KERNEL))) {
dbg("amedyn_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(&amedyn_usb_driver,
intf, NULL)) < 0) {
dbg("amedyn_upload_firmware: interface in use
(%d)!", ret);
goto fail_free;
}
usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev,
AMEDYN_USB_OUT_FIRM));
usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev,
AMEDYN_USB_IN_FIRM));
/* Init firmware upload*/
offset = 0;
do {
int thislen = min_t(int, instance->datamax,
fw1->size - offset);
memcpy(buf, fw1->data + offset, thislen);
if (send_block(instance, offset, buf, thislen))
goto fail_release;
offset+=thislen;
buf[0] = 0x40; buf[1] = 0x01; buf[2] = 0x12;
ret = usb_bulk_msg (usb_dev,
usb_sndbulkpipe(usb_dev, AMEDYN_USB_OUT_FIRM), buf, 3,
NULL, DATA_TIMEOUT);
if (ret < 0) {
goto fail_release;
dbg("amedyn_upload_firmware: write Init firmware to
modem failed (%d)!", ret);
}
} while (offset < fw1->size );
dbg("amedyn_upload_firmware: Init load");
if (jump_to_address(instance, 0x00000000))
goto fail_release;
/* read something needed */
ret = usb_bulk_msg (usb_dev, usb_rcvbulkpipe(usb_dev,
AMEDYN_USB_IN_FIRM), buf, 0x1ff, NULL, DATA_TIMEOUT);
if (ret < 0) {
goto fail_release;
dbg("amedyn_upload_firmware: read bufconf failed
(%d)!", ret);
}
memcpy(instance->bufconf, buf+0xb9, 8);
dbg("amedyn_upload_firmware: Read bufconf OK");
/* Firmware upload */
offset = 0;
do {
int thislen = min_t(int, instance->datamax,
fw2->size - offset);
memcpy(buf, fw2->data + offset, thislen);
if (send_block(instance, offset, buf, thislen))
goto fail_release;
offset+=thislen;
buf[0] = 0x40; buf[1] = 0x01; buf[2] = 0x12;
ret = usb_bulk_msg (usb_dev,
usb_sndbulkpipe(usb_dev, AMEDYN_USB_OUT_FIRM), buf, 3,
NULL, DATA_TIMEOUT);
if (ret < 0) {
dbg("amedyn_upload_firmware: write Init firmware to
modem failed (%d)!", ret);
goto fail_release;
}
} while (offset < fw2->size );
dbg("amedyn_upload_firmware: Firmware load");
if (jump_to_address(instance, 0x00000000))
goto fail_release;
msleep(2000);
dbg("PostInit...");
/* configure something */
ret = usb_control_msg(usb_dev,
usb_rcvctrlpipe(usb_dev, 0),
0x0a, AMEDYN_VENDOR_REQUEST_IN, 0x0c, 0x08,
buf, 0x01, CTRL_TIMEOUT);
if (ret < 1) {
dbg("amedyn_upload_firmware: PostInit fail at local
urb 1: %d\n", ret);
goto fail_release; }
value = buf[0];
usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev,
AMEDYN_USB_IN_INFO));
ret = usb_control_msg(usb_dev,
usb_sndctrlpipe(usb_dev, 0),
0x40, AMEDYN_VENDOR_REQUEST_OUT, 0x03, 0x00,
NULL, 0x00, CTRL_TIMEOUT);
if (ret < 0) {
dbg("amedyn_upload_firmware: PostInit fail at local
urb 2: %d\n", ret);
goto fail_release; }
for (i = 0xc2; i <= 0xcd; i++) {
ret = usb_control_msg(usb_dev,
usb_rcvctrlpipe(usb_dev, 0),
value, AMEDYN_VENDOR_REQUEST_IN, 0x03, i,
buf, 0x03, CTRL_TIMEOUT);
if (ret < 3) {
dbg("amedyn_upload_firmware: PostInit fail at local
urb 3: %d\n", ret);
goto fail_release; }
msleep(100);
}
/* success */
dbg("amedyn_upload_firmware: firmware upload OK");
/* Delay to allow firmware to start up. We can do
this here
because we're in our own kernel thread anyway. */
msleep(1000);
/* Start modem synchronisation */
if (amedyn_start_synchro(instance))
dbg("amedyn_start_synchro: failed");
amedyn_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(&amedyn_usb_driver,
intf);
fail_free:
free_page((unsigned long)buffer);
fail:
amedyn_got_firmware(instance, 0);
}
static int amedyn_find_firmware(struct
amedyn_instance_data *instance,
char* phase, const struct firmware **fw_p)
{
char buf[16];
sprintf(buf, "%s", phase);
dbg("amedyn_find_firmware: looking for %s", phase);
if (request_firmware(fw_p, buf,
&instance->u.usb_dev->dev)) {
dev_warn(&instance->u.usb_dev->dev, "no stage %s
firmware found\n", phase);
return -ENOENT;
}
dev_info(&instance->u.usb_dev->dev, "found firmware
%s\n", buf);
return 0;
}
static int amedyn_load_firmware(void *arg)
{
const struct firmware *fw1, *fw2;
struct amedyn_instance_data *instance = arg;
dbg("amedyn_load_firmware");
BUG_ON(!instance);
daemonize("firmware/amedyn");
if (!amedyn_find_firmware(instance,
instance->initfirmfile, &fw1)) {
if (!amedyn_find_firmware(instance,
instance->firmfile, &fw2)) {
amedyn_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. */
amedyn_got_firmware(instance, 0);
module_put(THIS_MODULE);
udsl_put_instance(&instance->u);
return 0;
}
#endif /* USE_FW_LOADER */
static void amedyn_firmware_start(struct
amedyn_instance_data *instance)
{
#ifdef USE_FW_LOADER
int ret;
#endif
dbg("amedyn_firmware_start");
down(&instance->u.serialize); /* vs self,
amedyn_got_firmware */
if (instance->u.status >= UDSL_LOADING_FIRMWARE) {
up(&instance->u.serialize);
dbg("amedyn_firmware_start: instance->u.status >=
UDSL_LOADING_FIRMWARE");
return;
}
instance->u.status = UDSL_LOADING_FIRMWARE;
up(&instance->u.serialize);
#ifdef USE_FW_LOADER
dbg("amedyn_firmware_start: looking for firmware");
udsl_get_instance(&instance->u);
dbg("amedyn_firmware_start: looking for firmware.");
try_module_get(THIS_MODULE);
dbg("amedyn_firmware_start: looking for firmware..");
ret = kernel_thread(amedyn_load_firmware, instance,
CLONE_FS | CLONE_FILES);
dbg("amedyn_firmware_start: looking for
firmware...");
if (ret >= 0)
return; /* OK */
dbg("amedyn_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 */
amedyn_got_firmware(instance, 0);
}
static int amedyn_firmware_wait(struct
udsl_instance_data *instance)
{
amedyn_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 amedyn_usb_ioctl(struct usb_interface
*intf, unsigned int code,
void *user_data)
{
struct amedyn_instance_data *instance =
usb_get_intfdata(intf);
dbg("amedyn_usb_ioctl entered");
if (!instance) {
dbg("amedyn_usb_ioctl: NULL instance!");
return -ENODEV;
}
switch (code) {
case UDSL_IOCTL_LINE_UP:
dbg("amedyn_usb_ioctl: UDSL_IOCTL_LINE_UP");
instance->resynconlost = 1;
amedyn_got_firmware(instance, 1);
return (instance->u.status == UDSL_LOADED_FIRMWARE)
? 0 : -EIO;
case UDSL_IOCTL_LINE_DOWN:
dbg("amedyn_usb_ioctl: UDSL_IOCTL_LINE_DOWN");
instance->resynconlost = 0;
return amedyn_line_down_signal (instance);
default:
return -ENOTTY;
}
}
static int amedyn_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 amedyn_instance_data *instance;
unsigned char mac_str[13];
int i;
char *buf[0x20];
int ret;
dbg("amedyn_usb_probe: trying device with
vendor=0x%x, product=0x%x, ifnum %d",
dev->descriptor.idVendor, dev->descriptor.idProduct,
ifnum);
if ((dev->descriptor.bDeviceClass !=
USB_CLASS_VENDOR_SPEC)
|| (ifnum != 1))
return -ENODEV;
if ( !((dev->descriptor.idVendor == AME_VENDORID2)
&& (dev->descriptor.idProduct == AME_PRODUCTID2))
&& !((dev->descriptor.idVendor == AME_VENDORID3)
&& (dev->descriptor.idProduct == AME_PRODUCTID3)) )
return -ENODEV;
dbg("amedyn_usb_probe: device accepted");
/* instance init */
instance = kmalloc(sizeof(*instance), GFP_KERNEL);
if (!instance) {
dbg("amedyn_usb_probe: no memory for instance
data!");
return -ENOMEM;
}
memset(instance, 0, sizeof(struct
amedyn_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 = AMEDYN_ENDPOINT_DATA_IN;
instance->u.firmware_wait = amedyn_firmware_wait;
instance->u.driver_name = amedyn_driver_name;
if ( linetype == ANALOG || linetype == ISDN)
instance->linetype = linetype;
else {
dbg("using default line type - 0x15 (analog)");
instance->linetype = ANALOG;
}
instance->resynconlost = 1;
instance->initfirmfile = "Init-usb.bin";
if (dev->descriptor.idProduct == AME_PRODUCTID2) {
dbg("Config for modem type 2 (Zyxel)");
instance->datamax = 0x1a0;
instance->firmfile = "fw-usb.bin"; }
if (dev->descriptor.idProduct == AME_PRODUCTID3) {
dbg("Config for modem type 3 (AAM600UG)");
instance->datamax = 0x1f2;
instance->firmfile = "Fw-usb_A.bin"; }
ret = udsl_instance_setup(dev, &instance->u);
if (ret)
goto fail;
init_timer(&instance->poll_timer);
instance->poll_timer.function = amedyn_timer_poll;
instance->poll_timer.data = (unsigned long)instance;
INIT_WORK(&instance->poll_work, (void
*)amedyn_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_bulk_msg(dev, usb_rcvbulkpipe(dev,
AMEDYN_USB_IN_INFO),
buf, 0x10, NULL, DATA_TIMEOUT);
if (ret >= 0) {
dbg("firmware appears to be already loaded");
amedyn_got_firmware(instance, 1);
amedyn_poll_status(instance);
} else {
dbg("firmware appears to NOT be already loaded");
amedyn_firmware_start(instance);
}
usb_set_intfdata(intf, instance);
return 0;
fail:
kfree(instance);
return -ENOMEM;
}
static void amedyn_usb_disconnect(struct usb_interface
*intf)
{
struct amedyn_instance_data *instance =
usb_get_intfdata(intf);
dbg("amedyn_usb_disconnect entered");
if (!instance) {
dbg("amedyn_usb_disconnect: NULL instance!");
return;
}
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 amedyn_usb_init(void)
{
dbg("amedyn_usb_init: driver version "
DRIVER_VERSION);
#ifdef USE_FW_LOADER
dbg("amedyn_usb_init: In kernel firmware upload");
#else
dbg("amedyn_usb_init: NOT in kernel firmware
upload");
#endif
return usb_register(&amedyn_usb_driver);
}
static void __exit amedyn_usb_cleanup(void)
{
dbg("amedyn_usb_cleanup entered");
usb_deregister(&amedyn_usb_driver);
}
module_init(amedyn_usb_init);
module_exit(amedyn_usb_cleanup);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
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