// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
* Linux device driver for USB based Prism54
|
*
|
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
|
*
|
* Based on the islsm (softmac prism54) driver, which is:
|
* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
|
*/
|
|
#include <linux/usb.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
|
#include <linux/firmware.h>
|
#include <linux/etherdevice.h>
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#include <linux/delay.h>
|
#include <linux/crc32.h>
|
#include <linux/module.h>
|
#include <net/mac80211.h>
|
|
#include "p54.h"
|
#include "lmac.h"
|
#include "p54usb.h"
|
|
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_DESCRIPTION("Prism54 USB wireless driver");
|
MODULE_LICENSE("GPL");
|
MODULE_ALIAS("prism54usb");
|
MODULE_FIRMWARE("isl3886usb");
|
MODULE_FIRMWARE("isl3887usb");
|
|
static struct usb_driver p54u_driver;
|
|
/*
|
* Note:
|
*
|
* Always update our wiki's device list (located at:
|
* http://wireless.wiki.kernel.org/en/users/Drivers/p54/devices ),
|
* whenever you add a new device.
|
*/
|
|
static const struct usb_device_id p54u_table[] = {
|
/* Version 1 devices (pci chip + net2280) */
|
{USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */
|
{USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */
|
{USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */
|
{USB_DEVICE(0x0675, 0x0530)}, /* DrayTek Vigor 530 */
|
{USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */
|
{USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */
|
{USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */
|
{USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */
|
{USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */
|
{USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */
|
{USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */
|
{USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */
|
{USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */
|
{USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */
|
{USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */
|
{USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */
|
{USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */
|
{USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */
|
{USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
|
{USB_DEVICE(0x124a, 0x4026)}, /* AirVasT USB wireless device */
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{USB_DEVICE(0x1435, 0x0210)}, /* Inventel UR054G */
|
{USB_DEVICE(0x15a9, 0x0002)}, /* Gemtek WUBI-100GW 802.11g */
|
{USB_DEVICE(0x1630, 0x0005)}, /* 2Wire 802.11g USB (v1) / Z-Com */
|
{USB_DEVICE(0x182d, 0x096b)}, /* Sitecom WL-107 */
|
{USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */
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{USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */
|
{USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */
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{USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */
|
{USB_DEVICE(0x2001, 0x3762)}, /* Conceptronic C54U */
|
{USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */
|
{USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */
|
|
/* Version 2 devices (3887) */
|
{USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */
|
{USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */
|
{USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */
|
{USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */
|
{USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */
|
{USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */
|
{USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */
|
{USB_DEVICE(0x07aa, 0x0020)}, /* Corega WLUSB2GTST USB */
|
{USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */
|
{USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */
|
{USB_DEVICE(0x083a, 0x4531)}, /* T-Com Sinus 154 data II */
|
{USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */
|
{USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */
|
{USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */
|
{USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */
|
{USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */
|
{USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/
|
{USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/
|
/* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above,
|
* just noting it here for clarity */
|
{USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */
|
{USB_DEVICE(0x0cde, 0x0015)}, /* Zcomax XG-705A */
|
{USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */
|
{USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */
|
{USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */
|
{USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */
|
{USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */
|
{USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */
|
{USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */
|
/* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
|
{USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */
|
{USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */
|
{USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */
|
{USB_DEVICE(0x2001, 0x3705)}, /* D-Link DWL-G120 rev C1 */
|
{USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */
|
{USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */
|
{USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */
|
{}
|
};
|
|
MODULE_DEVICE_TABLE(usb, p54u_table);
|
|
static const struct {
|
u32 intf;
|
enum p54u_hw_type type;
|
const char *fw;
|
char hw[20];
|
} p54u_fwlist[__NUM_P54U_HWTYPES] = {
|
{
|
.type = P54U_NET2280,
|
.intf = FW_LM86,
|
.fw = "isl3886usb",
|
.hw = "ISL3886 + net2280",
|
},
|
{
|
.type = P54U_3887,
|
.intf = FW_LM87,
|
.fw = "isl3887usb",
|
.hw = "ISL3887",
|
},
|
};
|
|
static void p54u_rx_cb(struct urb *urb)
|
{
|
struct sk_buff *skb = (struct sk_buff *) urb->context;
|
struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
|
struct ieee80211_hw *dev = info->dev;
|
struct p54u_priv *priv = dev->priv;
|
|
skb_unlink(skb, &priv->rx_queue);
|
|
if (unlikely(urb->status)) {
|
dev_kfree_skb_irq(skb);
|
return;
|
}
|
|
skb_put(skb, urb->actual_length);
|
|
if (priv->hw_type == P54U_NET2280)
|
skb_pull(skb, priv->common.tx_hdr_len);
|
if (priv->common.fw_interface == FW_LM87) {
|
skb_pull(skb, 4);
|
skb_put(skb, 4);
|
}
|
|
if (p54_rx(dev, skb)) {
|
skb = dev_alloc_skb(priv->common.rx_mtu + 32);
|
if (unlikely(!skb)) {
|
/* TODO check rx queue length and refill *somewhere* */
|
return;
|
}
|
|
info = (struct p54u_rx_info *) skb->cb;
|
info->urb = urb;
|
info->dev = dev;
|
urb->transfer_buffer = skb_tail_pointer(skb);
|
urb->context = skb;
|
} else {
|
if (priv->hw_type == P54U_NET2280)
|
skb_push(skb, priv->common.tx_hdr_len);
|
if (priv->common.fw_interface == FW_LM87) {
|
skb_push(skb, 4);
|
skb_put(skb, 4);
|
}
|
skb_reset_tail_pointer(skb);
|
skb_trim(skb, 0);
|
urb->transfer_buffer = skb_tail_pointer(skb);
|
}
|
skb_queue_tail(&priv->rx_queue, skb);
|
usb_anchor_urb(urb, &priv->submitted);
|
if (usb_submit_urb(urb, GFP_ATOMIC)) {
|
skb_unlink(skb, &priv->rx_queue);
|
usb_unanchor_urb(urb);
|
dev_kfree_skb_irq(skb);
|
}
|
}
|
|
static void p54u_tx_cb(struct urb *urb)
|
{
|
struct sk_buff *skb = urb->context;
|
struct ieee80211_hw *dev =
|
usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
|
|
p54_free_skb(dev, skb);
|
}
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|
static void p54u_tx_dummy_cb(struct urb *urb) { }
|
|
static void p54u_free_urbs(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
usb_kill_anchored_urbs(&priv->submitted);
|
}
|
|
static void p54u_stop(struct ieee80211_hw *dev)
|
{
|
/*
|
* TODO: figure out how to reliably stop the 3887 and net2280 so
|
* the hardware is still usable next time we want to start it.
|
* until then, we just stop listening to the hardware..
|
*/
|
p54u_free_urbs(dev);
|
}
|
|
static int p54u_init_urbs(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
struct urb *entry = NULL;
|
struct sk_buff *skb;
|
struct p54u_rx_info *info;
|
int ret = 0;
|
|
while (skb_queue_len(&priv->rx_queue) < 32) {
|
skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
|
if (!skb) {
|
ret = -ENOMEM;
|
goto err;
|
}
|
entry = usb_alloc_urb(0, GFP_KERNEL);
|
if (!entry) {
|
ret = -ENOMEM;
|
goto err;
|
}
|
|
usb_fill_bulk_urb(entry, priv->udev,
|
usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
|
skb_tail_pointer(skb),
|
priv->common.rx_mtu + 32, p54u_rx_cb, skb);
|
info = (struct p54u_rx_info *) skb->cb;
|
info->urb = entry;
|
info->dev = dev;
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skb_queue_tail(&priv->rx_queue, skb);
|
|
usb_anchor_urb(entry, &priv->submitted);
|
ret = usb_submit_urb(entry, GFP_KERNEL);
|
if (ret) {
|
skb_unlink(skb, &priv->rx_queue);
|
usb_unanchor_urb(entry);
|
goto err;
|
}
|
usb_free_urb(entry);
|
entry = NULL;
|
}
|
|
return 0;
|
|
err:
|
usb_free_urb(entry);
|
kfree_skb(skb);
|
p54u_free_urbs(dev);
|
return ret;
|
}
|
|
static int p54u_open(struct ieee80211_hw *dev)
|
{
|
/*
|
* TODO: Because we don't know how to reliably stop the 3887 and
|
* the isl3886+net2280, other than brutally cut off all
|
* communications. We have to reinitialize the urbs on every start.
|
*/
|
return p54u_init_urbs(dev);
|
}
|
|
static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
|
{
|
u32 chk = 0;
|
|
length >>= 2;
|
while (length--) {
|
chk ^= le32_to_cpu(*data++);
|
chk = (chk >> 5) ^ (chk << 3);
|
}
|
|
return cpu_to_le32(chk);
|
}
|
|
static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
|
{
|
struct p54u_priv *priv = dev->priv;
|
struct urb *data_urb;
|
struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
|
|
data_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
if (!data_urb) {
|
p54_free_skb(dev, skb);
|
return;
|
}
|
|
hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
|
hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
|
|
usb_fill_bulk_urb(data_urb, priv->udev,
|
usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
|
hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
|
p54u_tx_cb : p54u_tx_dummy_cb, skb);
|
data_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
usb_anchor_urb(data_urb, &priv->submitted);
|
if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
|
usb_unanchor_urb(data_urb);
|
p54_free_skb(dev, skb);
|
}
|
usb_free_urb(data_urb);
|
}
|
|
static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
|
{
|
struct p54u_priv *priv = dev->priv;
|
struct urb *int_urb = NULL, *data_urb = NULL;
|
struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
|
struct net2280_reg_write *reg = NULL;
|
int err = -ENOMEM;
|
|
reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
|
if (!reg)
|
goto out;
|
|
int_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
if (!int_urb)
|
goto out;
|
|
data_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
if (!data_urb)
|
goto out;
|
|
reg->port = cpu_to_le16(NET2280_DEV_U32);
|
reg->addr = cpu_to_le32(P54U_DEV_BASE);
|
reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
|
|
memset(hdr, 0, sizeof(*hdr));
|
hdr->len = cpu_to_le16(skb->len);
|
hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
|
|
usb_fill_bulk_urb(int_urb, priv->udev,
|
usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
|
p54u_tx_dummy_cb, dev);
|
|
/*
|
* URB_FREE_BUFFER triggers a code path in the USB subsystem that will
|
* free what is inside the transfer_buffer after the last reference to
|
* the int_urb is dropped.
|
*/
|
int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
|
reg = NULL;
|
|
usb_fill_bulk_urb(data_urb, priv->udev,
|
usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
|
hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
|
p54u_tx_cb : p54u_tx_dummy_cb, skb);
|
data_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
usb_anchor_urb(int_urb, &priv->submitted);
|
err = usb_submit_urb(int_urb, GFP_ATOMIC);
|
if (err) {
|
usb_unanchor_urb(int_urb);
|
goto out;
|
}
|
|
usb_anchor_urb(data_urb, &priv->submitted);
|
err = usb_submit_urb(data_urb, GFP_ATOMIC);
|
if (err) {
|
usb_unanchor_urb(data_urb);
|
goto out;
|
}
|
out:
|
usb_free_urb(int_urb);
|
usb_free_urb(data_urb);
|
|
if (err) {
|
kfree(reg);
|
p54_free_skb(dev, skb);
|
}
|
}
|
|
static int p54u_write(struct p54u_priv *priv,
|
struct net2280_reg_write *buf,
|
enum net2280_op_type type,
|
__le32 addr, __le32 val)
|
{
|
unsigned int ep;
|
int alen;
|
|
if (type & 0x0800)
|
ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
|
else
|
ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
|
|
buf->port = cpu_to_le16(type);
|
buf->addr = addr;
|
buf->val = val;
|
|
return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
|
}
|
|
static int p54u_read(struct p54u_priv *priv, void *buf,
|
enum net2280_op_type type,
|
__le32 addr, __le32 *val)
|
{
|
struct net2280_reg_read *read = buf;
|
__le32 *reg = buf;
|
unsigned int ep;
|
int alen, err;
|
|
if (type & 0x0800)
|
ep = P54U_PIPE_DEV;
|
else
|
ep = P54U_PIPE_BRG;
|
|
read->port = cpu_to_le16(type);
|
read->addr = addr;
|
|
err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
|
read, sizeof(*read), &alen, 1000);
|
if (err)
|
return err;
|
|
err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
|
reg, sizeof(*reg), &alen, 1000);
|
if (err)
|
return err;
|
|
*val = *reg;
|
return 0;
|
}
|
|
static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
|
void *data, size_t len)
|
{
|
int alen;
|
return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
|
data, len, &alen, 2000);
|
}
|
|
static int p54u_device_reset(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
|
|
if (lock) {
|
ret = usb_lock_device_for_reset(priv->udev, priv->intf);
|
if (ret < 0) {
|
dev_err(&priv->udev->dev, "(p54usb) unable to lock "
|
"device for reset (%d)!\n", ret);
|
return ret;
|
}
|
}
|
|
ret = usb_reset_device(priv->udev);
|
if (lock)
|
usb_unlock_device(priv->udev);
|
|
if (ret)
|
dev_err(&priv->udev->dev, "(p54usb) unable to reset "
|
"device (%d)!\n", ret);
|
|
return ret;
|
}
|
|
static const char p54u_romboot_3887[] = "~~~~";
|
static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
u8 *buf;
|
int ret;
|
|
buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
|
if (!buf)
|
return -ENOMEM;
|
ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
|
buf, 4);
|
kfree(buf);
|
if (ret)
|
dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
|
"boot ROM (%d)!\n", ret);
|
|
return ret;
|
}
|
|
static const char p54u_firmware_upload_3887[] = "<\r";
|
static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
int err, alen;
|
u8 carry = 0;
|
u8 *buf, *tmp;
|
const u8 *data;
|
unsigned int left, remains, block_size;
|
struct x2_header *hdr;
|
unsigned long timeout;
|
|
err = p54u_firmware_reset_3887(dev);
|
if (err)
|
return err;
|
|
tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
|
if (!buf)
|
return -ENOMEM;
|
|
left = block_size = min_t(size_t, P54U_FW_BLOCK, priv->fw->size);
|
strcpy(buf, p54u_firmware_upload_3887);
|
left -= strlen(p54u_firmware_upload_3887);
|
tmp += strlen(p54u_firmware_upload_3887);
|
|
data = priv->fw->data;
|
remains = priv->fw->size;
|
|
hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
|
memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
|
hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
|
hdr->fw_length = cpu_to_le32(priv->fw->size);
|
hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
|
sizeof(u32)*2));
|
left -= sizeof(*hdr);
|
tmp += sizeof(*hdr);
|
|
while (remains) {
|
while (left--) {
|
if (carry) {
|
*tmp++ = carry;
|
carry = 0;
|
remains--;
|
continue;
|
}
|
switch (*data) {
|
case '~':
|
*tmp++ = '}';
|
carry = '^';
|
break;
|
case '}':
|
*tmp++ = '}';
|
carry = ']';
|
break;
|
default:
|
*tmp++ = *data;
|
remains--;
|
break;
|
}
|
data++;
|
}
|
|
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware "
|
"upload failed!\n");
|
goto err_upload_failed;
|
}
|
|
tmp = buf;
|
left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
|
}
|
|
*((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
|
priv->fw->size));
|
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
|
goto err_upload_failed;
|
}
|
timeout = jiffies + msecs_to_jiffies(1000);
|
while (!(err = usb_bulk_msg(priv->udev,
|
usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
|
if (alen > 2 && !memcmp(buf, "OK", 2))
|
break;
|
|
if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
|
err = -EINVAL;
|
break;
|
}
|
|
if (time_after(jiffies, timeout)) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware boot "
|
"timed out!\n");
|
err = -ETIMEDOUT;
|
break;
|
}
|
}
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
|
goto err_upload_failed;
|
}
|
|
buf[0] = 'g';
|
buf[1] = '\r';
|
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
|
goto err_upload_failed;
|
}
|
|
timeout = jiffies + msecs_to_jiffies(1000);
|
while (!(err = usb_bulk_msg(priv->udev,
|
usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
|
if (alen > 0 && buf[0] == 'g')
|
break;
|
|
if (time_after(jiffies, timeout)) {
|
err = -ETIMEDOUT;
|
break;
|
}
|
}
|
if (err)
|
goto err_upload_failed;
|
|
err_upload_failed:
|
kfree(buf);
|
return err;
|
}
|
|
static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
|
{
|
struct p54u_priv *priv = dev->priv;
|
const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
|
int err, alen;
|
void *buf;
|
__le32 reg;
|
unsigned int remains, offset;
|
const u8 *data;
|
|
buf = kmalloc(512, GFP_KERNEL);
|
if (!buf)
|
return -ENOMEM;
|
|
#define P54U_WRITE(type, addr, data) \
|
do {\
|
err = p54u_write(priv, buf, type,\
|
cpu_to_le32((u32)(unsigned long)addr), data);\
|
if (err) \
|
goto fail;\
|
} while (0)
|
|
#define P54U_READ(type, addr) \
|
do {\
|
err = p54u_read(priv, buf, type,\
|
cpu_to_le32((u32)(unsigned long)addr), ®);\
|
if (err)\
|
goto fail;\
|
} while (0)
|
|
/* power down net2280 bridge */
|
P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
|
reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
|
reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
|
P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
|
|
mdelay(100);
|
|
/* power up bridge */
|
reg |= cpu_to_le32(P54U_BRG_POWER_UP);
|
reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
|
P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
|
|
mdelay(100);
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
|
cpu_to_le32(NET2280_CLK_30Mhz |
|
NET2280_PCI_ENABLE |
|
NET2280_PCI_SOFT_RESET));
|
|
mdelay(20);
|
|
P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
|
cpu_to_le32(PCI_COMMAND_MEMORY |
|
PCI_COMMAND_MASTER));
|
|
P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
|
cpu_to_le32(NET2280_BASE));
|
|
P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
|
reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
|
P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
|
|
// TODO: we really need this?
|
P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
|
cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
|
P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
|
cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
|
|
P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
|
cpu_to_le32(NET2280_BASE2));
|
|
/* finally done setting up the bridge */
|
|
P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
|
cpu_to_le32(PCI_COMMAND_MEMORY |
|
PCI_COMMAND_MASTER));
|
|
P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0);
|
P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
|
cpu_to_le32(P54U_DEV_BASE));
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
|
P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
|
cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
|
|
/* do romboot */
|
P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
|
|
P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
mdelay(20);
|
|
reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
mdelay(20);
|
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
mdelay(100);
|
|
P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
|
|
/* finally, we can upload firmware now! */
|
remains = priv->fw->size;
|
data = priv->fw->data;
|
offset = ISL38XX_DEV_FIRMWARE_ADDR;
|
|
while (remains) {
|
unsigned int block_len = min(remains, (unsigned int)512);
|
memcpy(buf, data, block_len);
|
|
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware block "
|
"upload failed\n");
|
goto fail;
|
}
|
|
P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
|
cpu_to_le32(0xc0000f00));
|
|
P54U_WRITE(NET2280_DEV_U32,
|
0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
|
P54U_WRITE(NET2280_DEV_U32,
|
0x0020 | (unsigned long)&devreg->direct_mem_win,
|
cpu_to_le32(1));
|
|
P54U_WRITE(NET2280_DEV_U32,
|
0x0024 | (unsigned long)&devreg->direct_mem_win,
|
cpu_to_le32(block_len));
|
P54U_WRITE(NET2280_DEV_U32,
|
0x0028 | (unsigned long)&devreg->direct_mem_win,
|
cpu_to_le32(offset));
|
|
P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
|
cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
|
P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
|
cpu_to_le32(block_len >> 2));
|
P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
|
cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
|
|
mdelay(10);
|
|
P54U_READ(NET2280_DEV_U32,
|
0x002C | (unsigned long)&devreg->direct_mem_win);
|
if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
|
!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
|
dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
|
"transfer failed\n");
|
goto fail;
|
}
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
|
cpu_to_le32(NET2280_FIFO_FLUSH));
|
|
remains -= block_len;
|
data += block_len;
|
offset += block_len;
|
}
|
|
/* do ramboot */
|
P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
|
reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
mdelay(20);
|
|
reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
|
|
mdelay(100);
|
|
P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
|
|
/* start up the firmware */
|
P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
|
cpu_to_le32(ISL38XX_INT_IDENT_INIT));
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
|
cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
|
cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
|
NET2280_USB_INTERRUPT_ENABLE));
|
|
P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
|
cpu_to_le32(ISL38XX_DEV_INT_RESET));
|
|
err = usb_interrupt_msg(priv->udev,
|
usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
|
buf, sizeof(__le32), &alen, 1000);
|
if (err || alen != sizeof(__le32))
|
goto fail;
|
|
P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
|
P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
|
|
if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
|
err = -EINVAL;
|
|
P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
|
P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
|
cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
|
|
#undef P54U_WRITE
|
#undef P54U_READ
|
|
fail:
|
kfree(buf);
|
return err;
|
}
|
|
static int p54_find_type(struct p54u_priv *priv)
|
{
|
int i;
|
|
for (i = 0; i < __NUM_P54U_HWTYPES; i++)
|
if (p54u_fwlist[i].type == priv->hw_type)
|
break;
|
if (i == __NUM_P54U_HWTYPES)
|
return -EOPNOTSUPP;
|
|
return i;
|
}
|
|
static int p54u_start_ops(struct p54u_priv *priv)
|
{
|
struct ieee80211_hw *dev = priv->common.hw;
|
int ret;
|
|
ret = p54_parse_firmware(dev, priv->fw);
|
if (ret)
|
goto err_out;
|
|
ret = p54_find_type(priv);
|
if (ret < 0)
|
goto err_out;
|
|
if (priv->common.fw_interface != p54u_fwlist[ret].intf) {
|
dev_err(&priv->udev->dev, "wrong firmware, please get "
|
"a firmware for \"%s\" and try again.\n",
|
p54u_fwlist[ret].hw);
|
ret = -ENODEV;
|
goto err_out;
|
}
|
|
ret = priv->upload_fw(dev);
|
if (ret)
|
goto err_out;
|
|
ret = p54u_open(dev);
|
if (ret)
|
goto err_out;
|
|
ret = p54_read_eeprom(dev);
|
if (ret)
|
goto err_stop;
|
|
p54u_stop(dev);
|
|
ret = p54_register_common(dev, &priv->udev->dev);
|
if (ret)
|
goto err_stop;
|
|
return 0;
|
|
err_stop:
|
p54u_stop(dev);
|
|
err_out:
|
/*
|
* p54u_disconnect will do the rest of the
|
* cleanup
|
*/
|
return ret;
|
}
|
|
static void p54u_load_firmware_cb(const struct firmware *firmware,
|
void *context)
|
{
|
struct p54u_priv *priv = context;
|
struct usb_device *udev = priv->udev;
|
struct usb_interface *intf = priv->intf;
|
int err;
|
|
if (firmware) {
|
priv->fw = firmware;
|
err = p54u_start_ops(priv);
|
} else {
|
err = -ENOENT;
|
dev_err(&udev->dev, "Firmware not found.\n");
|
}
|
|
complete(&priv->fw_wait_load);
|
/*
|
* At this point p54u_disconnect may have already freed
|
* the "priv" context. Do not use it anymore!
|
*/
|
priv = NULL;
|
|
if (err) {
|
dev_err(&intf->dev, "failed to initialize device (%d)\n", err);
|
|
usb_lock_device(udev);
|
usb_driver_release_interface(&p54u_driver, intf);
|
usb_unlock_device(udev);
|
}
|
|
usb_put_intf(intf);
|
}
|
|
static int p54u_load_firmware(struct ieee80211_hw *dev,
|
struct usb_interface *intf)
|
{
|
struct usb_device *udev = interface_to_usbdev(intf);
|
struct p54u_priv *priv = dev->priv;
|
struct device *device = &udev->dev;
|
int err, i;
|
|
BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
|
|
init_completion(&priv->fw_wait_load);
|
i = p54_find_type(priv);
|
if (i < 0)
|
return i;
|
|
dev_info(&priv->udev->dev, "Loading firmware file %s\n",
|
p54u_fwlist[i].fw);
|
|
usb_get_intf(intf);
|
err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
|
device, GFP_KERNEL, priv,
|
p54u_load_firmware_cb);
|
if (err) {
|
dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
|
"(%d)!\n", p54u_fwlist[i].fw, err);
|
usb_put_intf(intf);
|
}
|
|
return err;
|
}
|
|
static int p54u_probe(struct usb_interface *intf,
|
const struct usb_device_id *id)
|
{
|
struct usb_device *udev = interface_to_usbdev(intf);
|
struct ieee80211_hw *dev;
|
struct p54u_priv *priv;
|
int err;
|
unsigned int i, recognized_pipes;
|
|
dev = p54_init_common(sizeof(*priv));
|
|
if (!dev) {
|
dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
|
return -ENOMEM;
|
}
|
|
priv = dev->priv;
|
priv->hw_type = P54U_INVALID_HW;
|
|
SET_IEEE80211_DEV(dev, &intf->dev);
|
usb_set_intfdata(intf, dev);
|
priv->udev = udev;
|
priv->intf = intf;
|
skb_queue_head_init(&priv->rx_queue);
|
init_usb_anchor(&priv->submitted);
|
|
/* really lazy and simple way of figuring out if we're a 3887 */
|
/* TODO: should just stick the identification in the device table */
|
i = intf->altsetting->desc.bNumEndpoints;
|
recognized_pipes = 0;
|
while (i--) {
|
switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
|
case P54U_PIPE_DATA:
|
case P54U_PIPE_MGMT:
|
case P54U_PIPE_BRG:
|
case P54U_PIPE_DEV:
|
case P54U_PIPE_DATA | USB_DIR_IN:
|
case P54U_PIPE_MGMT | USB_DIR_IN:
|
case P54U_PIPE_BRG | USB_DIR_IN:
|
case P54U_PIPE_DEV | USB_DIR_IN:
|
case P54U_PIPE_INT | USB_DIR_IN:
|
recognized_pipes++;
|
}
|
}
|
priv->common.open = p54u_open;
|
priv->common.stop = p54u_stop;
|
if (recognized_pipes < P54U_PIPE_NUMBER) {
|
#ifdef CONFIG_PM
|
/* ISL3887 needs a full reset on resume */
|
udev->reset_resume = 1;
|
#endif /* CONFIG_PM */
|
err = p54u_device_reset(dev);
|
|
priv->hw_type = P54U_3887;
|
dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
|
priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
|
priv->common.tx = p54u_tx_lm87;
|
priv->upload_fw = p54u_upload_firmware_3887;
|
} else {
|
priv->hw_type = P54U_NET2280;
|
dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
|
priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
|
priv->common.tx = p54u_tx_net2280;
|
priv->upload_fw = p54u_upload_firmware_net2280;
|
}
|
err = p54u_load_firmware(dev, intf);
|
if (err)
|
p54_free_common(dev);
|
return err;
|
}
|
|
static void p54u_disconnect(struct usb_interface *intf)
|
{
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
struct p54u_priv *priv;
|
|
if (!dev)
|
return;
|
|
priv = dev->priv;
|
wait_for_completion(&priv->fw_wait_load);
|
p54_unregister_common(dev);
|
|
release_firmware(priv->fw);
|
p54_free_common(dev);
|
}
|
|
static int p54u_pre_reset(struct usb_interface *intf)
|
{
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
|
if (!dev)
|
return -ENODEV;
|
|
p54u_stop(dev);
|
return 0;
|
}
|
|
static int p54u_resume(struct usb_interface *intf)
|
{
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
struct p54u_priv *priv;
|
|
if (!dev)
|
return -ENODEV;
|
|
priv = dev->priv;
|
if (unlikely(!(priv->upload_fw && priv->fw)))
|
return 0;
|
|
return priv->upload_fw(dev);
|
}
|
|
static int p54u_post_reset(struct usb_interface *intf)
|
{
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
struct p54u_priv *priv;
|
int err;
|
|
err = p54u_resume(intf);
|
if (err)
|
return err;
|
|
/* reinitialize old device state */
|
priv = dev->priv;
|
if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
|
ieee80211_restart_hw(dev);
|
|
return 0;
|
}
|
|
#ifdef CONFIG_PM
|
|
static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
|
{
|
return p54u_pre_reset(intf);
|
}
|
|
#endif /* CONFIG_PM */
|
|
static struct usb_driver p54u_driver = {
|
.name = "p54usb",
|
.id_table = p54u_table,
|
.probe = p54u_probe,
|
.disconnect = p54u_disconnect,
|
.pre_reset = p54u_pre_reset,
|
.post_reset = p54u_post_reset,
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#ifdef CONFIG_PM
|
.suspend = p54u_suspend,
|
.resume = p54u_resume,
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.reset_resume = p54u_resume,
|
#endif /* CONFIG_PM */
|
.soft_unbind = 1,
|
.disable_hub_initiated_lpm = 1,
|
};
|
|
module_usb_driver(p54u_driver);
|
