911 lines
24 KiB
C
911 lines
24 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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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(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(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(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(0x09aa, 0x1000)}, /* Spinnaker Proto board */
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{USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */
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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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if (unlikely(urb->status)) {
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info->urb = NULL;
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usb_free_urb(urb);
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return;
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}
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skb_unlink(skb, &priv->rx_queue);
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skb_put(skb, urb->actual_length);
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if (!priv->hw_type)
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skb_pull(skb, sizeof(struct net2280_tx_hdr));
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if (p54_rx(dev, skb)) {
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skb = dev_alloc_skb(MAX_RX_SIZE);
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if (unlikely(!skb)) {
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usb_free_urb(urb);
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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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skb_queue_tail(&priv->rx_queue, skb);
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} else {
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skb_trim(skb, 0);
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skb_queue_tail(&priv->rx_queue, skb);
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}
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usb_submit_urb(urb, GFP_ATOMIC);
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}
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static void p54u_tx_cb(struct urb *urb)
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{
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usb_free_urb(urb);
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}
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static void p54u_tx_free_cb(struct urb *urb)
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{
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kfree(urb->transfer_buffer);
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usb_free_urb(urb);
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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;
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struct sk_buff *skb;
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struct p54u_rx_info *info;
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while (skb_queue_len(&priv->rx_queue) < 32) {
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skb = __dev_alloc_skb(MAX_RX_SIZE, GFP_KERNEL);
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if (!skb)
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break;
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entry = usb_alloc_urb(0, GFP_KERNEL);
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if (!entry) {
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kfree_skb(skb);
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break;
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}
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usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), skb_tail_pointer(skb), MAX_RX_SIZE, 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_submit_urb(entry, GFP_KERNEL);
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}
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return 0;
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}
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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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struct p54u_rx_info *info;
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struct sk_buff *skb;
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while ((skb = skb_dequeue(&priv->rx_queue))) {
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info = (struct p54u_rx_info *) skb->cb;
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if (!info->urb)
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continue;
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usb_kill_urb(info->urb);
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kfree_skb(skb);
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}
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}
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static void p54u_tx_3887(struct ieee80211_hw *dev, struct p54_control_hdr *data,
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size_t len, int free_on_tx)
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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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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), &data->req_id,
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sizeof(data->req_id), p54u_tx_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), data, len,
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free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev);
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usb_submit_urb(addr_urb, GFP_ATOMIC);
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usb_submit_urb(data_urb, GFP_ATOMIC);
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}
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static void p54u_tx_net2280(struct ieee80211_hw *dev, struct p54_control_hdr *data,
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size_t len, int free_on_tx)
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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;
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struct net2280_reg_write *reg;
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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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len += sizeof(*data);
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hdr = (void *)data - sizeof(*hdr);
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memset(hdr, 0, sizeof(*hdr));
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hdr->device_addr = data->req_id;
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hdr->len = cpu_to_le16(len);
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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_free_cb, dev);
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usb_submit_urb(int_urb, GFP_ATOMIC);
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usb_fill_bulk_urb(data_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), hdr, len + sizeof(*hdr),
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free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev);
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usb_submit_urb(data_urb, GFP_ATOMIC);
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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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{
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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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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;
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err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
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reg, sizeof(*reg), &alen, 1000);
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if (err)
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return err;
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*val = *reg;
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return 0;
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}
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static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
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void *data, size_t len)
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{
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int alen;
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return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
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data, len, &alen, 2000);
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}
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static int p54u_read_eeprom(struct ieee80211_hw *dev)
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{
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struct p54u_priv *priv = dev->priv;
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void *buf;
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struct p54_control_hdr *hdr;
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int err, alen;
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size_t offset = priv->hw_type ? 0x10 : 0x20;
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buf = kmalloc(0x2020, GFP_KERNEL);
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if (!buf) {
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printk(KERN_ERR "prism54usb: cannot allocate memory for "
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"eeprom readback!\n");
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return -ENOMEM;
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}
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if (priv->hw_type) {
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*((u32 *) buf) = priv->common.rx_start;
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err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
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if (err) {
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printk(KERN_ERR "prism54usb: addr send failed\n");
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goto fail;
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}
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} else {
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struct net2280_reg_write *reg = buf;
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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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err = p54u_bulk_msg(priv, P54U_PIPE_DEV, buf, sizeof(*reg));
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if (err) {
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printk(KERN_ERR "prism54usb: dev_int send failed\n");
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goto fail;
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}
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}
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hdr = buf + priv->common.tx_hdr_len;
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p54_fill_eeprom_readback(hdr);
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hdr->req_id = cpu_to_le32(priv->common.rx_start);
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if (priv->common.tx_hdr_len) {
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struct net2280_tx_hdr *tx_hdr = buf;
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tx_hdr->device_addr = hdr->req_id;
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tx_hdr->len = cpu_to_le16(EEPROM_READBACK_LEN);
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}
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/* we can just pretend to send 0x2000 bytes of nothing in the headers */
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err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf,
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EEPROM_READBACK_LEN + priv->common.tx_hdr_len);
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if (err) {
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printk(KERN_ERR "prism54usb: eeprom req send failed\n");
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goto fail;
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}
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err = usb_bulk_msg(priv->udev,
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usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
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buf, 0x2020, &alen, 1000);
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if (!err && alen > offset) {
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p54_parse_eeprom(dev, (u8 *)buf + offset, alen - offset);
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} else {
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printk(KERN_ERR "prism54usb: eeprom read failed!\n");
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err = -EINVAL;
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goto fail;
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}
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fail:
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kfree(buf);
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return err;
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}
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static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
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{
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static char start_string[] = "~~~~<\r";
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struct p54u_priv *priv = dev->priv;
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const struct firmware *fw_entry = NULL;
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int err, alen;
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u8 carry = 0;
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u8 *buf, *tmp, *data;
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unsigned int left, remains, block_size;
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struct x2_header *hdr;
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unsigned long timeout;
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tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
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if (!buf) {
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printk(KERN_ERR "p54usb: cannot allocate firmware upload buffer!\n");
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err = -ENOMEM;
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goto err_bufalloc;
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}
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memcpy(buf, start_string, 4);
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err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 4);
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if (err) {
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printk(KERN_ERR "p54usb: reset failed! (%d)\n", err);
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goto err_reset;
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}
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err = request_firmware(&fw_entry, "isl3887usb_bare", &priv->udev->dev);
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if (err) {
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printk(KERN_ERR "p54usb: cannot find firmware (isl3887usb_bare)!\n");
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goto err_req_fw_failed;
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}
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p54_parse_firmware(dev, fw_entry);
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left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size);
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strcpy(buf, start_string);
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left -= strlen(start_string);
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tmp += strlen(start_string);
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data = fw_entry->data;
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remains = fw_entry->size;
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hdr = (struct x2_header *)(buf + strlen(start_string));
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memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
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hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
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hdr->fw_length = cpu_to_le32(fw_entry->size);
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hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
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sizeof(u32)*2));
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left -= sizeof(*hdr);
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tmp += sizeof(*hdr);
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while (remains) {
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while (left--) {
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if (carry) {
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*tmp++ = carry;
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carry = 0;
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remains--;
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continue;
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}
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switch (*data) {
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case '~':
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*tmp++ = '}';
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carry = '^';
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break;
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case '}':
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*tmp++ = '}';
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carry = ']';
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break;
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default:
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*tmp++ = *data;
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remains--;
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break;
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}
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data++;
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}
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err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
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if (err) {
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printk(KERN_ERR "prism54usb: firmware upload failed!\n");
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goto err_upload_failed;
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}
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tmp = buf;
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left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
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}
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*((__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) {
|
|
printk(KERN_ERR "prism54usb: 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)) {
|
|
printk(KERN_INFO "prism54usb: firmware upload failed!\n");
|
|
err = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
printk(KERN_ERR "prism54usb: firmware boot timed out!\n");
|
|
err = -ETIMEDOUT;
|
|
break;
|
|
}
|
|
}
|
|
if (err)
|
|
goto err_upload_failed;
|
|
|
|
buf[0] = 'g';
|
|
buf[1] = '\r';
|
|
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
|
|
if (err) {
|
|
printk(KERN_ERR "prism54usb: 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;
|
|
u8 *data;
|
|
|
|
buf = kmalloc(512, GFP_KERNEL);
|
|
if (!buf) {
|
|
printk(KERN_ERR "p54usb: firmware buffer alloc failed!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
err = request_firmware(&fw_entry, "isl3890usb", &priv->udev->dev);
|
|
if (err) {
|
|
printk(KERN_ERR "p54usb: cannot find firmware (isl3890usb)!\n");
|
|
kfree(buf);
|
|
return err;
|
|
}
|
|
|
|
p54_parse_firmware(dev, fw_entry);
|
|
|
|
#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) {
|
|
printk(KERN_ERR "prism54usb: 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))) {
|
|
printk(KERN_ERR "prism54usb: 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;
|
|
DECLARE_MAC_BUF(mac);
|
|
|
|
dev = p54_init_common(sizeof(*priv));
|
|
if (!dev) {
|
|
printk(KERN_ERR "prism54usb: ieee80211 alloc failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv = dev->priv;
|
|
|
|
SET_IEEE80211_DEV(dev, &intf->dev);
|
|
usb_set_intfdata(intf, dev);
|
|
priv->udev = udev;
|
|
|
|
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;
|
|
|
|
if (recognized_pipes < P54U_PIPE_NUMBER) {
|
|
priv->hw_type = P54U_3887;
|
|
priv->common.tx = p54u_tx_3887;
|
|
} else {
|
|
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->common.stop = p54u_stop;
|
|
|
|
if (priv->hw_type)
|
|
err = p54u_upload_firmware_3887(dev);
|
|
else
|
|
err = p54u_upload_firmware_net2280(dev);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
err = p54u_read_eeprom(dev);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
|
|
u8 perm_addr[ETH_ALEN];
|
|
|
|
printk(KERN_WARNING "prism54usb: Invalid hwaddr! Using randomly generated MAC addr\n");
|
|
random_ether_addr(perm_addr);
|
|
SET_IEEE80211_PERM_ADDR(dev, perm_addr);
|
|
}
|
|
|
|
skb_queue_head_init(&priv->rx_queue);
|
|
|
|
err = ieee80211_register_hw(dev);
|
|
if (err) {
|
|
printk(KERN_ERR "prism54usb: Cannot register netdevice\n");
|
|
goto err_free_dev;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: hwaddr %s, isl38%02x\n",
|
|
wiphy_name(dev->wiphy),
|
|
print_mac(mac, dev->wiphy->perm_addr),
|
|
priv->common.version);
|
|
|
|
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 struct usb_driver p54u_driver = {
|
|
.name = "prism54usb",
|
|
.id_table = p54u_table,
|
|
.probe = p54u_probe,
|
|
.disconnect = p54u_disconnect,
|
|
};
|
|
|
|
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);
|