1040 lines
26 KiB
C
1040 lines
26 KiB
C
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/*
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* Linux device driver for USB based Prism54
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*
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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*
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* Based on the islsm (softmac prism54) driver, which is:
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* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/usb.h>
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#include <linux/pci.h>
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#include <linux/firmware.h>
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#include <linux/etherdevice.h>
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#include <linux/delay.h>
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#include <linux/crc32.h>
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#include <net/mac80211.h>
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#include "p54.h"
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#include "p54usb.h"
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MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_DESCRIPTION("Prism54 USB wireless driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("prism54usb");
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MODULE_FIRMWARE("isl3886usb");
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MODULE_FIRMWARE("isl3887usb");
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static struct usb_device_id p54u_table[] __devinitdata = {
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/* Version 1 devices (pci chip + net2280) */
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{USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */
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{USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */
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{USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */
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{USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */
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{USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */
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{USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */
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{USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */
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{USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */
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{USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */
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{USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */
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{USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
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{USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */
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{USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */
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{USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */
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{USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */
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{USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */
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{USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */
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/* Version 2 devices (3887) */
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{USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */
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{USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */
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{USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */
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{USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */
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{USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */
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{USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */
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{USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */
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{USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */
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{USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */
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{USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */
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{USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/
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{USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/
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{USB_DEVICE(0x0cde, 0x0006)}, /* Medion MD40900 */
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{USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */
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{USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */
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{USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */
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{USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */
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{USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */
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{USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */
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{USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */
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{USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */
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{USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */
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{USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */
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{}
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};
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MODULE_DEVICE_TABLE(usb, p54u_table);
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static void p54u_rx_cb(struct urb *urb)
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{
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struct sk_buff *skb = (struct sk_buff *) urb->context;
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struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
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struct ieee80211_hw *dev = info->dev;
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struct p54u_priv *priv = dev->priv;
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skb_unlink(skb, &priv->rx_queue);
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if (unlikely(urb->status)) {
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dev_kfree_skb_irq(skb);
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return;
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}
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skb_put(skb, urb->actual_length);
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if (priv->hw_type == P54U_NET2280)
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skb_pull(skb, priv->common.tx_hdr_len);
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if (priv->common.fw_interface == FW_LM87) {
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skb_pull(skb, 4);
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skb_put(skb, 4);
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}
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if (p54_rx(dev, skb)) {
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skb = dev_alloc_skb(priv->common.rx_mtu + 32);
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if (unlikely(!skb)) {
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/* TODO check rx queue length and refill *somewhere* */
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return;
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}
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info = (struct p54u_rx_info *) skb->cb;
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info->urb = urb;
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info->dev = dev;
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urb->transfer_buffer = skb_tail_pointer(skb);
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urb->context = skb;
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} else {
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if (priv->hw_type == P54U_NET2280)
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skb_push(skb, priv->common.tx_hdr_len);
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if (priv->common.fw_interface == FW_LM87) {
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skb_push(skb, 4);
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skb_put(skb, 4);
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}
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skb_reset_tail_pointer(skb);
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skb_trim(skb, 0);
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if (urb->transfer_buffer != skb_tail_pointer(skb)) {
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/* this should not happen */
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WARN_ON(1);
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urb->transfer_buffer = skb_tail_pointer(skb);
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}
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}
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skb_queue_tail(&priv->rx_queue, skb);
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usb_anchor_urb(urb, &priv->submitted);
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if (usb_submit_urb(urb, GFP_ATOMIC)) {
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skb_unlink(skb, &priv->rx_queue);
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usb_unanchor_urb(urb);
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dev_kfree_skb_irq(skb);
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}
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}
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static void p54u_tx_cb(struct urb *urb)
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{
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struct sk_buff *skb = urb->context;
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struct ieee80211_hw *dev = (struct ieee80211_hw *)
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usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
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p54_free_skb(dev, skb);
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}
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static void p54u_tx_dummy_cb(struct urb *urb) { }
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static void p54u_free_urbs(struct ieee80211_hw *dev)
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{
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struct p54u_priv *priv = dev->priv;
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usb_kill_anchored_urbs(&priv->submitted);
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}
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static int p54u_init_urbs(struct ieee80211_hw *dev)
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{
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struct p54u_priv *priv = dev->priv;
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struct urb *entry = NULL;
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struct sk_buff *skb;
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struct p54u_rx_info *info;
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int ret = 0;
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while (skb_queue_len(&priv->rx_queue) < 32) {
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skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
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if (!skb) {
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ret = -ENOMEM;
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goto err;
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}
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entry = usb_alloc_urb(0, GFP_KERNEL);
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if (!entry) {
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ret = -ENOMEM;
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goto err;
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}
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usb_fill_bulk_urb(entry, priv->udev,
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usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
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skb_tail_pointer(skb),
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priv->common.rx_mtu + 32, p54u_rx_cb, skb);
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info = (struct p54u_rx_info *) skb->cb;
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info->urb = entry;
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info->dev = dev;
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skb_queue_tail(&priv->rx_queue, skb);
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usb_anchor_urb(entry, &priv->submitted);
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ret = usb_submit_urb(entry, GFP_KERNEL);
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if (ret) {
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skb_unlink(skb, &priv->rx_queue);
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usb_unanchor_urb(entry);
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goto err;
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}
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usb_free_urb(entry);
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entry = NULL;
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}
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return 0;
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err:
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usb_free_urb(entry);
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kfree_skb(skb);
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p54u_free_urbs(dev);
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return ret;
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}
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static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54u_priv *priv = dev->priv;
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struct urb *addr_urb, *data_urb;
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int err = 0;
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addr_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!addr_urb)
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return;
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data_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!data_urb) {
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usb_free_urb(addr_urb);
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return;
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}
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usb_fill_bulk_urb(addr_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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&((struct p54_hdr *)skb->data)->req_id, 4,
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p54u_tx_dummy_cb, dev);
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usb_fill_bulk_urb(data_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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skb->data, skb->len, FREE_AFTER_TX(skb) ?
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p54u_tx_cb : p54u_tx_dummy_cb, skb);
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addr_urb->transfer_flags |= URB_ZERO_PACKET;
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data_urb->transfer_flags |= URB_ZERO_PACKET;
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usb_anchor_urb(addr_urb, &priv->submitted);
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err = usb_submit_urb(addr_urb, GFP_ATOMIC);
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if (err) {
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usb_unanchor_urb(addr_urb);
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goto out;
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}
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usb_anchor_urb(data_urb, &priv->submitted);
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err = usb_submit_urb(data_urb, GFP_ATOMIC);
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if (err)
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usb_unanchor_urb(data_urb);
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out:
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usb_free_urb(addr_urb);
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usb_free_urb(data_urb);
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if (err)
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p54_free_skb(dev, skb);
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}
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static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
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{
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u32 chk = 0;
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length >>= 2;
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while (length--) {
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chk ^= le32_to_cpu(*data++);
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chk = (chk >> 5) ^ (chk << 3);
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}
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return cpu_to_le32(chk);
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}
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static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54u_priv *priv = dev->priv;
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struct urb *data_urb;
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struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
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data_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!data_urb)
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return;
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hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
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hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
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usb_fill_bulk_urb(data_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
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p54u_tx_cb : p54u_tx_dummy_cb, skb);
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data_urb->transfer_flags |= URB_ZERO_PACKET;
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usb_anchor_urb(data_urb, &priv->submitted);
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if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
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usb_unanchor_urb(data_urb);
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p54_free_skb(dev, skb);
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}
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usb_free_urb(data_urb);
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}
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static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
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{
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struct p54u_priv *priv = dev->priv;
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struct urb *int_urb, *data_urb;
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struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
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struct net2280_reg_write *reg;
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int err = 0;
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reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
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if (!reg)
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return;
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int_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!int_urb) {
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kfree(reg);
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return;
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}
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data_urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!data_urb) {
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kfree(reg);
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usb_free_urb(int_urb);
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return;
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}
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reg->port = cpu_to_le16(NET2280_DEV_U32);
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reg->addr = cpu_to_le32(P54U_DEV_BASE);
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reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
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memset(hdr, 0, sizeof(*hdr));
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hdr->len = cpu_to_le16(skb->len);
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hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
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usb_fill_bulk_urb(int_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
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p54u_tx_dummy_cb, dev);
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/*
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* This flag triggers a code path in the USB subsystem that will
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* free what's inside the transfer_buffer after the callback routine
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* has completed.
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*/
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int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
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usb_fill_bulk_urb(data_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
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p54u_tx_cb : p54u_tx_dummy_cb, skb);
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data_urb->transfer_flags |= URB_ZERO_PACKET;
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usb_anchor_urb(int_urb, &priv->submitted);
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err = usb_submit_urb(int_urb, GFP_ATOMIC);
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if (err) {
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usb_unanchor_urb(int_urb);
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goto out;
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}
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usb_anchor_urb(data_urb, &priv->submitted);
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err = usb_submit_urb(data_urb, GFP_ATOMIC);
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if (err) {
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usb_unanchor_urb(data_urb);
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goto out;
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}
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out:
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usb_free_urb(int_urb);
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usb_free_urb(data_urb);
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if (err) {
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skb_pull(skb, sizeof(*hdr));
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p54_free_skb(dev, skb);
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}
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}
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|
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static int p54u_write(struct p54u_priv *priv,
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struct net2280_reg_write *buf,
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enum net2280_op_type type,
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__le32 addr, __le32 val)
|
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{
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unsigned int ep;
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int alen;
|
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if (type & 0x0800)
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ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
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else
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ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
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buf->port = cpu_to_le16(type);
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buf->addr = addr;
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buf->val = val;
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return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
|
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}
|
|
|
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static int p54u_read(struct p54u_priv *priv, void *buf,
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enum net2280_op_type type,
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__le32 addr, __le32 *val)
|
|
{
|
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struct net2280_reg_read *read = buf;
|
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__le32 *reg = buf;
|
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unsigned int ep;
|
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int alen, err;
|
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|
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if (type & 0x0800)
|
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ep = P54U_PIPE_DEV;
|
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else
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ep = P54U_PIPE_BRG;
|
|
|
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read->port = cpu_to_le16(type);
|
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read->addr = addr;
|
|
|
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err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
|
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read, sizeof(*read), &alen, 1000);
|
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if (err)
|
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return err;
|
|
|
|
err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
|
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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),
|
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data, len, &alen, 2000);
|
|
}
|
|
|
|
static const char p54u_romboot_3887[] = "~~~~";
|
|
static const char p54u_firmware_upload_3887[] = "<\r";
|
|
|
|
static int p54u_device_reset_3887(struct ieee80211_hw *dev)
|
|
{
|
|
struct p54u_priv *priv = dev->priv;
|
|
int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
|
|
u8 buf[4];
|
|
|
|
if (lock) {
|
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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;
|
|
}
|
|
|
|
memcpy(&buf, p54u_romboot_3887, sizeof(buf));
|
|
ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
|
|
buf, sizeof(buf));
|
|
if (ret)
|
|
dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
|
|
"boot ROM: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
|
|
{
|
|
struct p54u_priv *priv = dev->priv;
|
|
const struct firmware *fw_entry = NULL;
|
|
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;
|
|
|
|
tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
|
|
if (!buf) {
|
|
dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware"
|
|
"upload buffer!\n");
|
|
err = -ENOMEM;
|
|
goto err_bufalloc;
|
|
}
|
|
|
|
err = p54u_device_reset_3887(dev);
|
|
if (err)
|
|
goto err_reset;
|
|
|
|
err = request_firmware(&fw_entry, "isl3887usb", &priv->udev->dev);
|
|
if (err) {
|
|
dev_err(&priv->udev->dev, "p54usb: cannot find firmware "
|
|
"(isl3887usb)\n");
|
|
err = request_firmware(&fw_entry, "isl3887usb_bare",
|
|
&priv->udev->dev);
|
|
if (err)
|
|
goto err_req_fw_failed;
|
|
}
|
|
|
|
err = p54_parse_firmware(dev, fw_entry);
|
|
if (err)
|
|
goto err_upload_failed;
|
|
|
|
if (priv->common.fw_interface != FW_LM87) {
|
|
dev_err(&priv->udev->dev, "wrong firmware, "
|
|
"please get a LM87 firmware and try again.\n");
|
|
err = -EINVAL;
|
|
goto err_upload_failed;
|
|
}
|
|
|
|
left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size);
|
|
strcpy(buf, p54u_firmware_upload_3887);
|
|
left -= strlen(p54u_firmware_upload_3887);
|
|
tmp += strlen(p54u_firmware_upload_3887);
|
|
|
|
data = fw_entry->data;
|
|
remains = fw_entry->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(fw_entry->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, fw_entry->data, fw_entry->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:
|
|
release_firmware(fw_entry);
|
|
err_req_fw_failed:
|
|
err_reset:
|
|
kfree(buf);
|
|
err_bufalloc:
|
|
return err;
|
|
}
|
|
|
|
static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
|
|
{
|
|
struct p54u_priv *priv = dev->priv;
|
|
const struct firmware *fw_entry = NULL;
|
|
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) {
|
|
dev_err(&priv->udev->dev, "(p54usb) firmware buffer "
|
|
"alloc failed!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
err = request_firmware(&fw_entry, "isl3886usb", &priv->udev->dev);
|
|
if (err) {
|
|
dev_err(&priv->udev->dev, "(p54usb) cannot find firmware "
|
|
"(isl3886usb)\n");
|
|
err = request_firmware(&fw_entry, "isl3890usb",
|
|
&priv->udev->dev);
|
|
if (err) {
|
|
kfree(buf);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
err = p54_parse_firmware(dev, fw_entry);
|
|
if (err) {
|
|
kfree(buf);
|
|
release_firmware(fw_entry);
|
|
return err;
|
|
}
|
|
|
|
if (priv->common.fw_interface != FW_LM86) {
|
|
dev_err(&priv->udev->dev, "wrong firmware, "
|
|
"please get a LM86(USB) firmware and try again.\n");
|
|
kfree(buf);
|
|
release_firmware(fw_entry);
|
|
return -EINVAL;
|
|
}
|
|
|
|
#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 = fw_entry->size;
|
|
data = fw_entry->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:
|
|
release_firmware(fw_entry);
|
|
kfree(buf);
|
|
return err;
|
|
}
|
|
|
|
static int p54u_open(struct ieee80211_hw *dev)
|
|
{
|
|
struct p54u_priv *priv = dev->priv;
|
|
int err;
|
|
|
|
err = p54u_init_urbs(dev);
|
|
if (err) {
|
|
return err;
|
|
}
|
|
|
|
priv->common.open = p54u_init_urbs;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
return;
|
|
}
|
|
|
|
static int __devinit 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;
|
|
|
|
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);
|
|
|
|
usb_get_dev(udev);
|
|
|
|
/* 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) {
|
|
priv->hw_type = P54U_3887;
|
|
err = p54u_upload_firmware_3887(dev);
|
|
if (priv->common.fw_interface == FW_LM87) {
|
|
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;
|
|
} else
|
|
priv->common.tx = p54u_tx_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;
|
|
err = p54u_upload_firmware_net2280(dev);
|
|
}
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
p54u_open(dev);
|
|
err = p54_read_eeprom(dev);
|
|
p54u_stop(dev);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
err = p54_register_common(dev, &udev->dev);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
return 0;
|
|
|
|
err_free_dev:
|
|
ieee80211_free_hw(dev);
|
|
usb_set_intfdata(intf, NULL);
|
|
usb_put_dev(udev);
|
|
return err;
|
|
}
|
|
|
|
static void __devexit p54u_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct ieee80211_hw *dev = usb_get_intfdata(intf);
|
|
struct p54u_priv *priv;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
ieee80211_unregister_hw(dev);
|
|
|
|
priv = dev->priv;
|
|
usb_put_dev(interface_to_usbdev(intf));
|
|
p54_free_common(dev);
|
|
ieee80211_free_hw(dev);
|
|
}
|
|
|
|
static int p54u_pre_reset(struct usb_interface *intf)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int p54u_post_reset(struct usb_interface *intf)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
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,
|
|
.soft_unbind = 1,
|
|
};
|
|
|
|
static int __init p54u_init(void)
|
|
{
|
|
return usb_register(&p54u_driver);
|
|
}
|
|
|
|
static void __exit p54u_exit(void)
|
|
{
|
|
usb_deregister(&p54u_driver);
|
|
}
|
|
|
|
module_init(p54u_init);
|
|
module_exit(p54u_exit);
|