Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Linux device driver for USB based Prism54 |
| 4 | * |
| 5 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> |
| 6 | * |
| 7 | * Based on the islsm (softmac prism54) driver, which is: |
| 8 | * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/usb.h> |
| 17 | #include <linux/pci.h> |
| 18 | #include <linux/firmware.h> |
| 19 | #include <linux/etherdevice.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/crc32.h> |
| 22 | #include <net/mac80211.h> |
| 23 | |
| 24 | #include "p54.h" |
| 25 | #include "p54usb.h" |
| 26 | |
| 27 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
| 28 | MODULE_DESCRIPTION("Prism54 USB wireless driver"); |
| 29 | MODULE_LICENSE("GPL"); |
| 30 | MODULE_ALIAS("prism54usb"); |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 31 | MODULE_FIRMWARE("isl3886usb"); |
| 32 | MODULE_FIRMWARE("isl3887usb"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 33 | |
| 34 | static struct usb_device_id p54u_table[] __devinitdata = { |
| 35 | /* Version 1 devices (pci chip + net2280) */ |
| 36 | {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ |
| 37 | {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ |
| 38 | {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */ |
| 39 | {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */ |
Ivo Couckuyt | 1a17582 | 2008-02-20 14:58:00 -0500 | [diff] [blame] | 40 | {USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 41 | {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */ |
| 42 | {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */ |
| 43 | {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */ |
Christian Lamparter | ec366eb | 2008-10-13 23:41:53 +0200 | [diff] [blame] | 44 | {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 45 | {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ |
| 46 | {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ |
| 47 | {USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */ |
| 48 | {USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */ |
| 49 | {USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */ |
| 50 | {USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */ |
| 51 | {USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */ |
| 52 | {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ |
| 53 | |
| 54 | /* Version 2 devices (3887) */ |
Felix Homann | 4546002 | 2008-05-29 00:36:45 -0700 | [diff] [blame] | 55 | {USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 56 | {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ |
| 57 | {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ |
| 58 | {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */ |
Michiel | 878e6a4 | 2009-01-04 17:22:28 -0600 | [diff] [blame] | 59 | {USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 60 | {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */ |
| 61 | {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ |
| 62 | {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */ |
| 63 | {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */ |
| 64 | {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */ |
| 65 | {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/ |
| 66 | {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/ |
| 67 | {USB_DEVICE(0x0cde, 0x0006)}, /* Medion MD40900 */ |
| 68 | {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */ |
| 69 | {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ |
Jan Slupski | 43557e1 | 2008-03-10 22:41:18 -0700 | [diff] [blame] | 70 | {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */ |
Christian Lamparter | ec366eb | 2008-10-13 23:41:53 +0200 | [diff] [blame] | 71 | {USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */ |
John W. Linville | 387e100 | 2008-02-20 15:06:02 -0500 | [diff] [blame] | 72 | {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ |
Martti Huttunen | c109810 | 2007-10-04 00:06:00 -0400 | [diff] [blame] | 73 | {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 74 | {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ |
| 75 | {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ |
| 76 | {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ |
| 77 | {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ |
| 78 | {} |
| 79 | }; |
| 80 | |
| 81 | MODULE_DEVICE_TABLE(usb, p54u_table); |
| 82 | |
| 83 | static void p54u_rx_cb(struct urb *urb) |
| 84 | { |
| 85 | struct sk_buff *skb = (struct sk_buff *) urb->context; |
| 86 | struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb; |
| 87 | struct ieee80211_hw *dev = info->dev; |
| 88 | struct p54u_priv *priv = dev->priv; |
| 89 | |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 90 | skb_unlink(skb, &priv->rx_queue); |
| 91 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 92 | if (unlikely(urb->status)) { |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 93 | dev_kfree_skb_irq(skb); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 94 | return; |
| 95 | } |
| 96 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 97 | skb_put(skb, urb->actual_length); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 98 | |
| 99 | if (priv->hw_type == P54U_NET2280) |
| 100 | skb_pull(skb, priv->common.tx_hdr_len); |
| 101 | if (priv->common.fw_interface == FW_LM87) { |
| 102 | skb_pull(skb, 4); |
| 103 | skb_put(skb, 4); |
| 104 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 105 | |
| 106 | if (p54_rx(dev, skb)) { |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 107 | skb = dev_alloc_skb(priv->common.rx_mtu + 32); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 108 | if (unlikely(!skb)) { |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 109 | /* TODO check rx queue length and refill *somewhere* */ |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | info = (struct p54u_rx_info *) skb->cb; |
| 114 | info->urb = urb; |
| 115 | info->dev = dev; |
| 116 | urb->transfer_buffer = skb_tail_pointer(skb); |
| 117 | urb->context = skb; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 118 | } else { |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 119 | if (priv->hw_type == P54U_NET2280) |
| 120 | skb_push(skb, priv->common.tx_hdr_len); |
| 121 | if (priv->common.fw_interface == FW_LM87) { |
| 122 | skb_push(skb, 4); |
| 123 | skb_put(skb, 4); |
| 124 | } |
Christian Lamparter | d47c3ce | 2008-08-13 23:41:48 +0200 | [diff] [blame] | 125 | skb_reset_tail_pointer(skb); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 126 | skb_trim(skb, 0); |
Christian Lamparter | d47c3ce | 2008-08-13 23:41:48 +0200 | [diff] [blame] | 127 | if (urb->transfer_buffer != skb_tail_pointer(skb)) { |
| 128 | /* this should not happen */ |
| 129 | WARN_ON(1); |
| 130 | urb->transfer_buffer = skb_tail_pointer(skb); |
| 131 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 132 | } |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 133 | skb_queue_tail(&priv->rx_queue, skb); |
| 134 | usb_anchor_urb(urb, &priv->submitted); |
| 135 | if (usb_submit_urb(urb, GFP_ATOMIC)) { |
| 136 | skb_unlink(skb, &priv->rx_queue); |
| 137 | usb_unanchor_urb(urb); |
| 138 | dev_kfree_skb_irq(skb); |
| 139 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Christian Lamparter | 0a5ec96 | 2008-12-14 15:05:42 +0100 | [diff] [blame] | 142 | static void p54u_tx_cb(struct urb *urb) |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 143 | { |
| 144 | struct sk_buff *skb = urb->context; |
| 145 | struct ieee80211_hw *dev = (struct ieee80211_hw *) |
| 146 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); |
| 147 | |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 148 | p54_free_skb(dev, skb); |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | static void p54u_tx_dummy_cb(struct urb *urb) { } |
| 152 | |
| 153 | static void p54u_free_urbs(struct ieee80211_hw *dev) |
| 154 | { |
| 155 | struct p54u_priv *priv = dev->priv; |
| 156 | usb_kill_anchored_urbs(&priv->submitted); |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 157 | } |
| 158 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 159 | static int p54u_init_urbs(struct ieee80211_hw *dev) |
| 160 | { |
| 161 | struct p54u_priv *priv = dev->priv; |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 162 | struct urb *entry = NULL; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 163 | struct sk_buff *skb; |
| 164 | struct p54u_rx_info *info; |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 165 | int ret = 0; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 166 | |
| 167 | while (skb_queue_len(&priv->rx_queue) < 32) { |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 168 | skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL); |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 169 | if (!skb) { |
| 170 | ret = -ENOMEM; |
| 171 | goto err; |
| 172 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 173 | entry = usb_alloc_urb(0, GFP_KERNEL); |
| 174 | if (!entry) { |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 175 | ret = -ENOMEM; |
| 176 | goto err; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 177 | } |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 178 | |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 179 | usb_fill_bulk_urb(entry, priv->udev, |
| 180 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), |
| 181 | skb_tail_pointer(skb), |
| 182 | priv->common.rx_mtu + 32, p54u_rx_cb, skb); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 183 | info = (struct p54u_rx_info *) skb->cb; |
| 184 | info->urb = entry; |
| 185 | info->dev = dev; |
| 186 | skb_queue_tail(&priv->rx_queue, skb); |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 187 | |
| 188 | usb_anchor_urb(entry, &priv->submitted); |
| 189 | ret = usb_submit_urb(entry, GFP_KERNEL); |
| 190 | if (ret) { |
| 191 | skb_unlink(skb, &priv->rx_queue); |
| 192 | usb_unanchor_urb(entry); |
| 193 | goto err; |
| 194 | } |
| 195 | usb_free_urb(entry); |
| 196 | entry = NULL; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | return 0; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 200 | |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 201 | err: |
| 202 | usb_free_urb(entry); |
| 203 | kfree_skb(skb); |
| 204 | p54u_free_urbs(dev); |
| 205 | return ret; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 206 | } |
| 207 | |
Christian Lamparter | 0a5ec96 | 2008-12-14 15:05:42 +0100 | [diff] [blame] | 208 | static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 209 | { |
| 210 | struct p54u_priv *priv = dev->priv; |
| 211 | struct urb *addr_urb, *data_urb; |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 212 | int err = 0; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 213 | |
| 214 | addr_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 215 | if (!addr_urb) |
| 216 | return; |
| 217 | |
| 218 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 219 | if (!data_urb) { |
| 220 | usb_free_urb(addr_urb); |
| 221 | return; |
| 222 | } |
| 223 | |
| 224 | usb_fill_bulk_urb(addr_urb, priv->udev, |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 225 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
John W. Linville | 27df605 | 2008-10-22 16:41:55 -0400 | [diff] [blame] | 226 | &((struct p54_hdr *)skb->data)->req_id, 4, |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 227 | p54u_tx_dummy_cb, dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 228 | usb_fill_bulk_urb(data_urb, priv->udev, |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 229 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 230 | skb->data, skb->len, FREE_AFTER_TX(skb) ? |
| 231 | p54u_tx_cb : p54u_tx_dummy_cb, skb); |
Christian Lamparter | b4068a8 | 2009-01-20 23:11:21 +0100 | [diff] [blame] | 232 | addr_urb->transfer_flags |= URB_ZERO_PACKET; |
| 233 | data_urb->transfer_flags |= URB_ZERO_PACKET; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 234 | |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 235 | usb_anchor_urb(addr_urb, &priv->submitted); |
| 236 | err = usb_submit_urb(addr_urb, GFP_ATOMIC); |
| 237 | if (err) { |
| 238 | usb_unanchor_urb(addr_urb); |
| 239 | goto out; |
| 240 | } |
| 241 | |
Christian Lamparter | b4068a8 | 2009-01-20 23:11:21 +0100 | [diff] [blame] | 242 | usb_anchor_urb(data_urb, &priv->submitted); |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 243 | err = usb_submit_urb(data_urb, GFP_ATOMIC); |
| 244 | if (err) |
| 245 | usb_unanchor_urb(data_urb); |
| 246 | |
| 247 | out: |
| 248 | usb_free_urb(addr_urb); |
| 249 | usb_free_urb(data_urb); |
| 250 | |
| 251 | if (err) |
| 252 | p54_free_skb(dev, skb); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 253 | } |
| 254 | |
Johannes Berg | c912765 | 2008-12-01 18:19:36 +0100 | [diff] [blame] | 255 | static __le32 p54u_lm87_chksum(const __le32 *data, size_t length) |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 256 | { |
Larry Finger | 1f1c0e3 | 2008-09-25 14:54:28 -0500 | [diff] [blame] | 257 | u32 chk = 0; |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 258 | |
| 259 | length >>= 2; |
| 260 | while (length--) { |
Johannes Berg | c912765 | 2008-12-01 18:19:36 +0100 | [diff] [blame] | 261 | chk ^= le32_to_cpu(*data++); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 262 | chk = (chk >> 5) ^ (chk << 3); |
| 263 | } |
| 264 | |
Larry Finger | 1f1c0e3 | 2008-09-25 14:54:28 -0500 | [diff] [blame] | 265 | return cpu_to_le32(chk); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 266 | } |
| 267 | |
Christian Lamparter | 0a5ec96 | 2008-12-14 15:05:42 +0100 | [diff] [blame] | 268 | static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb) |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 269 | { |
| 270 | struct p54u_priv *priv = dev->priv; |
| 271 | struct urb *data_urb; |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 272 | struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 273 | |
| 274 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 275 | if (!data_urb) |
| 276 | return; |
| 277 | |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 278 | hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len); |
| 279 | hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id; |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 280 | |
| 281 | usb_fill_bulk_urb(data_urb, priv->udev, |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 282 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 283 | hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? |
| 284 | p54u_tx_cb : p54u_tx_dummy_cb, skb); |
Christian Lamparter | 00627f2 | 2008-12-20 02:21:56 +0100 | [diff] [blame] | 285 | data_urb->transfer_flags |= URB_ZERO_PACKET; |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 286 | |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 287 | usb_anchor_urb(data_urb, &priv->submitted); |
| 288 | if (usb_submit_urb(data_urb, GFP_ATOMIC)) { |
| 289 | usb_unanchor_urb(data_urb); |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 290 | p54_free_skb(dev, skb); |
| 291 | } |
| 292 | usb_free_urb(data_urb); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 293 | } |
| 294 | |
Christian Lamparter | 0a5ec96 | 2008-12-14 15:05:42 +0100 | [diff] [blame] | 295 | static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 296 | { |
| 297 | struct p54u_priv *priv = dev->priv; |
| 298 | struct urb *int_urb, *data_urb; |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 299 | struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 300 | struct net2280_reg_write *reg; |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 301 | int err = 0; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 302 | |
| 303 | reg = kmalloc(sizeof(*reg), GFP_ATOMIC); |
| 304 | if (!reg) |
| 305 | return; |
| 306 | |
| 307 | int_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 308 | if (!int_urb) { |
| 309 | kfree(reg); |
| 310 | return; |
| 311 | } |
| 312 | |
| 313 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| 314 | if (!data_urb) { |
| 315 | kfree(reg); |
| 316 | usb_free_urb(int_urb); |
| 317 | return; |
| 318 | } |
| 319 | |
| 320 | reg->port = cpu_to_le16(NET2280_DEV_U32); |
| 321 | reg->addr = cpu_to_le32(P54U_DEV_BASE); |
| 322 | reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA); |
| 323 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 324 | memset(hdr, 0, sizeof(*hdr)); |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 325 | hdr->len = cpu_to_le16(skb->len); |
| 326 | hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 327 | |
| 328 | usb_fill_bulk_urb(int_urb, priv->udev, |
| 329 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg), |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 330 | p54u_tx_dummy_cb, dev); |
| 331 | |
| 332 | /* |
| 333 | * This flag triggers a code path in the USB subsystem that will |
| 334 | * free what's inside the transfer_buffer after the callback routine |
| 335 | * has completed. |
| 336 | */ |
Christian Lamparter | b4068a8 | 2009-01-20 23:11:21 +0100 | [diff] [blame] | 337 | int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 338 | |
| 339 | usb_fill_bulk_urb(data_urb, priv->udev, |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 340 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), |
Christian Lamparter | e2fe154 | 2009-01-20 00:27:57 +0100 | [diff] [blame] | 341 | hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? |
| 342 | p54u_tx_cb : p54u_tx_dummy_cb, skb); |
Christian Lamparter | b4068a8 | 2009-01-20 23:11:21 +0100 | [diff] [blame] | 343 | data_urb->transfer_flags |= URB_ZERO_PACKET; |
Christian Lamparter | dd397dc | 2008-12-09 15:14:37 +0100 | [diff] [blame] | 344 | |
| 345 | usb_anchor_urb(int_urb, &priv->submitted); |
| 346 | err = usb_submit_urb(int_urb, GFP_ATOMIC); |
| 347 | if (err) { |
| 348 | usb_unanchor_urb(int_urb); |
| 349 | goto out; |
| 350 | } |
| 351 | |
| 352 | usb_anchor_urb(data_urb, &priv->submitted); |
| 353 | err = usb_submit_urb(data_urb, GFP_ATOMIC); |
| 354 | if (err) { |
| 355 | usb_unanchor_urb(data_urb); |
| 356 | goto out; |
| 357 | } |
| 358 | out: |
| 359 | usb_free_urb(int_urb); |
| 360 | usb_free_urb(data_urb); |
| 361 | |
| 362 | if (err) { |
| 363 | skb_pull(skb, sizeof(*hdr)); |
| 364 | p54_free_skb(dev, skb); |
| 365 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | static int p54u_write(struct p54u_priv *priv, |
| 369 | struct net2280_reg_write *buf, |
| 370 | enum net2280_op_type type, |
| 371 | __le32 addr, __le32 val) |
| 372 | { |
| 373 | unsigned int ep; |
| 374 | int alen; |
| 375 | |
| 376 | if (type & 0x0800) |
| 377 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV); |
| 378 | else |
| 379 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG); |
| 380 | |
| 381 | buf->port = cpu_to_le16(type); |
| 382 | buf->addr = addr; |
| 383 | buf->val = val; |
| 384 | |
| 385 | return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000); |
| 386 | } |
| 387 | |
| 388 | static int p54u_read(struct p54u_priv *priv, void *buf, |
| 389 | enum net2280_op_type type, |
| 390 | __le32 addr, __le32 *val) |
| 391 | { |
| 392 | struct net2280_reg_read *read = buf; |
| 393 | __le32 *reg = buf; |
| 394 | unsigned int ep; |
| 395 | int alen, err; |
| 396 | |
| 397 | if (type & 0x0800) |
| 398 | ep = P54U_PIPE_DEV; |
| 399 | else |
| 400 | ep = P54U_PIPE_BRG; |
| 401 | |
| 402 | read->port = cpu_to_le16(type); |
| 403 | read->addr = addr; |
| 404 | |
| 405 | err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), |
| 406 | read, sizeof(*read), &alen, 1000); |
| 407 | if (err) |
| 408 | return err; |
| 409 | |
| 410 | err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep), |
| 411 | reg, sizeof(*reg), &alen, 1000); |
| 412 | if (err) |
| 413 | return err; |
| 414 | |
| 415 | *val = *reg; |
| 416 | return 0; |
| 417 | } |
| 418 | |
| 419 | static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep, |
| 420 | void *data, size_t len) |
| 421 | { |
| 422 | int alen; |
| 423 | return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), |
| 424 | data, len, &alen, 2000); |
| 425 | } |
| 426 | |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 427 | static const char p54u_romboot_3887[] = "~~~~"; |
| 428 | static const char p54u_firmware_upload_3887[] = "<\r"; |
| 429 | |
| 430 | static int p54u_device_reset_3887(struct ieee80211_hw *dev) |
| 431 | { |
| 432 | struct p54u_priv *priv = dev->priv; |
| 433 | int ret, lock; |
| 434 | u8 buf[4]; |
| 435 | |
| 436 | ret = lock = usb_lock_device_for_reset(priv->udev, priv->intf); |
| 437 | if (ret < 0) { |
| 438 | dev_err(&priv->udev->dev, "(p54usb) unable to lock device for " |
| 439 | "reset: %d\n", ret); |
| 440 | return ret; |
| 441 | } |
| 442 | |
| 443 | ret = usb_reset_device(priv->udev); |
| 444 | if (lock) |
| 445 | usb_unlock_device(priv->udev); |
| 446 | |
| 447 | if (ret) { |
| 448 | dev_err(&priv->udev->dev, "(p54usb) unable to reset " |
| 449 | "device: %d\n", ret); |
| 450 | return ret; |
| 451 | } |
| 452 | |
| 453 | memcpy(&buf, p54u_romboot_3887, sizeof(buf)); |
| 454 | ret = p54u_bulk_msg(priv, P54U_PIPE_DATA, |
| 455 | buf, sizeof(buf)); |
| 456 | if (ret) |
| 457 | dev_err(&priv->udev->dev, "(p54usb) unable to jump to " |
| 458 | "boot ROM: %d\n", ret); |
| 459 | |
| 460 | return ret; |
| 461 | } |
| 462 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 463 | static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) |
| 464 | { |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 465 | struct p54u_priv *priv = dev->priv; |
| 466 | const struct firmware *fw_entry = NULL; |
| 467 | int err, alen; |
| 468 | u8 carry = 0; |
David Woodhouse | 8b72eb4 | 2008-05-24 00:08:55 +0100 | [diff] [blame] | 469 | u8 *buf, *tmp; |
| 470 | const u8 *data; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 471 | unsigned int left, remains, block_size; |
| 472 | struct x2_header *hdr; |
| 473 | unsigned long timeout; |
| 474 | |
| 475 | tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); |
| 476 | if (!buf) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 477 | dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware" |
| 478 | "upload buffer!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 479 | err = -ENOMEM; |
| 480 | goto err_bufalloc; |
| 481 | } |
| 482 | |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 483 | err = p54u_device_reset_3887(dev); |
| 484 | if (err) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 485 | goto err_reset; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 486 | |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 487 | err = request_firmware(&fw_entry, "isl3887usb", &priv->udev->dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 488 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 489 | dev_err(&priv->udev->dev, "p54usb: cannot find firmware " |
| 490 | "(isl3887usb)\n"); |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 491 | err = request_firmware(&fw_entry, "isl3887usb_bare", |
| 492 | &priv->udev->dev); |
| 493 | if (err) |
| 494 | goto err_req_fw_failed; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 495 | } |
| 496 | |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 497 | err = p54_parse_firmware(dev, fw_entry); |
| 498 | if (err) |
| 499 | goto err_upload_failed; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 500 | |
| 501 | left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size); |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 502 | strcpy(buf, p54u_firmware_upload_3887); |
| 503 | left -= strlen(p54u_firmware_upload_3887); |
| 504 | tmp += strlen(p54u_firmware_upload_3887); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 505 | |
| 506 | data = fw_entry->data; |
| 507 | remains = fw_entry->size; |
| 508 | |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 509 | hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887)); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 510 | memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); |
| 511 | hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); |
| 512 | hdr->fw_length = cpu_to_le32(fw_entry->size); |
| 513 | hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr, |
| 514 | sizeof(u32)*2)); |
| 515 | left -= sizeof(*hdr); |
| 516 | tmp += sizeof(*hdr); |
| 517 | |
| 518 | while (remains) { |
| 519 | while (left--) { |
| 520 | if (carry) { |
| 521 | *tmp++ = carry; |
| 522 | carry = 0; |
| 523 | remains--; |
| 524 | continue; |
| 525 | } |
| 526 | switch (*data) { |
| 527 | case '~': |
| 528 | *tmp++ = '}'; |
| 529 | carry = '^'; |
| 530 | break; |
| 531 | case '}': |
| 532 | *tmp++ = '}'; |
| 533 | carry = ']'; |
| 534 | break; |
| 535 | default: |
| 536 | *tmp++ = *data; |
| 537 | remains--; |
| 538 | break; |
| 539 | } |
| 540 | data++; |
| 541 | } |
| 542 | |
| 543 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); |
| 544 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 545 | dev_err(&priv->udev->dev, "(p54usb) firmware " |
| 546 | "upload failed!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 547 | goto err_upload_failed; |
| 548 | } |
| 549 | |
| 550 | tmp = buf; |
| 551 | left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); |
| 552 | } |
| 553 | |
| 554 | *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, fw_entry->data, fw_entry->size)); |
| 555 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); |
| 556 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 557 | dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 558 | goto err_upload_failed; |
| 559 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 560 | timeout = jiffies + msecs_to_jiffies(1000); |
| 561 | while (!(err = usb_bulk_msg(priv->udev, |
| 562 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { |
| 563 | if (alen > 2 && !memcmp(buf, "OK", 2)) |
| 564 | break; |
| 565 | |
| 566 | if (alen > 5 && !memcmp(buf, "ERROR", 5)) { |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 567 | err = -EINVAL; |
| 568 | break; |
| 569 | } |
| 570 | |
| 571 | if (time_after(jiffies, timeout)) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 572 | dev_err(&priv->udev->dev, "(p54usb) firmware boot " |
| 573 | "timed out!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 574 | err = -ETIMEDOUT; |
| 575 | break; |
| 576 | } |
| 577 | } |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 578 | if (err) { |
| 579 | dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 580 | goto err_upload_failed; |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 581 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 582 | |
| 583 | buf[0] = 'g'; |
| 584 | buf[1] = '\r'; |
| 585 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2); |
| 586 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 587 | dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 588 | goto err_upload_failed; |
| 589 | } |
| 590 | |
| 591 | timeout = jiffies + msecs_to_jiffies(1000); |
| 592 | while (!(err = usb_bulk_msg(priv->udev, |
| 593 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { |
| 594 | if (alen > 0 && buf[0] == 'g') |
| 595 | break; |
| 596 | |
| 597 | if (time_after(jiffies, timeout)) { |
| 598 | err = -ETIMEDOUT; |
| 599 | break; |
| 600 | } |
| 601 | } |
| 602 | if (err) |
| 603 | goto err_upload_failed; |
| 604 | |
| 605 | err_upload_failed: |
| 606 | release_firmware(fw_entry); |
| 607 | err_req_fw_failed: |
| 608 | err_reset: |
| 609 | kfree(buf); |
| 610 | err_bufalloc: |
| 611 | return err; |
| 612 | } |
| 613 | |
| 614 | static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) |
| 615 | { |
| 616 | struct p54u_priv *priv = dev->priv; |
| 617 | const struct firmware *fw_entry = NULL; |
| 618 | const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE; |
| 619 | int err, alen; |
| 620 | void *buf; |
| 621 | __le32 reg; |
| 622 | unsigned int remains, offset; |
David Woodhouse | 8b72eb4 | 2008-05-24 00:08:55 +0100 | [diff] [blame] | 623 | const u8 *data; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 624 | |
| 625 | buf = kmalloc(512, GFP_KERNEL); |
| 626 | if (!buf) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 627 | dev_err(&priv->udev->dev, "(p54usb) firmware buffer " |
| 628 | "alloc failed!\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 629 | return -ENOMEM; |
| 630 | } |
| 631 | |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 632 | err = request_firmware(&fw_entry, "isl3886usb", &priv->udev->dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 633 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 634 | dev_err(&priv->udev->dev, "(p54usb) cannot find firmware " |
| 635 | "(isl3886usb)\n"); |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 636 | err = request_firmware(&fw_entry, "isl3890usb", |
| 637 | &priv->udev->dev); |
| 638 | if (err) { |
| 639 | kfree(buf); |
| 640 | return err; |
| 641 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 642 | } |
| 643 | |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 644 | err = p54_parse_firmware(dev, fw_entry); |
| 645 | if (err) { |
| 646 | kfree(buf); |
| 647 | release_firmware(fw_entry); |
| 648 | return err; |
| 649 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 650 | |
| 651 | #define P54U_WRITE(type, addr, data) \ |
| 652 | do {\ |
| 653 | err = p54u_write(priv, buf, type,\ |
| 654 | cpu_to_le32((u32)(unsigned long)addr), data);\ |
| 655 | if (err) \ |
| 656 | goto fail;\ |
| 657 | } while (0) |
| 658 | |
| 659 | #define P54U_READ(type, addr) \ |
| 660 | do {\ |
| 661 | err = p54u_read(priv, buf, type,\ |
| 662 | cpu_to_le32((u32)(unsigned long)addr), ®);\ |
| 663 | if (err)\ |
| 664 | goto fail;\ |
| 665 | } while (0) |
| 666 | |
| 667 | /* power down net2280 bridge */ |
| 668 | P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL); |
| 669 | reg |= cpu_to_le32(P54U_BRG_POWER_DOWN); |
| 670 | reg &= cpu_to_le32(~P54U_BRG_POWER_UP); |
| 671 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); |
| 672 | |
| 673 | mdelay(100); |
| 674 | |
| 675 | /* power up bridge */ |
| 676 | reg |= cpu_to_le32(P54U_BRG_POWER_UP); |
| 677 | reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN); |
| 678 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); |
| 679 | |
| 680 | mdelay(100); |
| 681 | |
| 682 | P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT, |
| 683 | cpu_to_le32(NET2280_CLK_30Mhz | |
| 684 | NET2280_PCI_ENABLE | |
| 685 | NET2280_PCI_SOFT_RESET)); |
| 686 | |
| 687 | mdelay(20); |
| 688 | |
| 689 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND, |
| 690 | cpu_to_le32(PCI_COMMAND_MEMORY | |
| 691 | PCI_COMMAND_MASTER)); |
| 692 | |
| 693 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0, |
| 694 | cpu_to_le32(NET2280_BASE)); |
| 695 | |
| 696 | P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS); |
| 697 | reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT); |
| 698 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg); |
| 699 | |
| 700 | // TODO: we really need this? |
| 701 | P54U_READ(NET2280_BRG_U32, NET2280_RELNUM); |
| 702 | |
| 703 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP, |
| 704 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); |
| 705 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP, |
| 706 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); |
| 707 | |
| 708 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2, |
| 709 | cpu_to_le32(NET2280_BASE2)); |
| 710 | |
| 711 | /* finally done setting up the bridge */ |
| 712 | |
| 713 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND, |
| 714 | cpu_to_le32(PCI_COMMAND_MEMORY | |
| 715 | PCI_COMMAND_MASTER)); |
| 716 | |
| 717 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0); |
| 718 | P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0, |
| 719 | cpu_to_le32(P54U_DEV_BASE)); |
| 720 | |
| 721 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); |
| 722 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| 723 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| 724 | |
| 725 | /* do romboot */ |
| 726 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0); |
| 727 | |
| 728 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); |
| 729 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 730 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); |
| 731 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); |
| 732 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 733 | |
| 734 | mdelay(20); |
| 735 | |
| 736 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| 737 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 738 | |
| 739 | mdelay(20); |
| 740 | |
| 741 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 742 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 743 | |
| 744 | mdelay(100); |
| 745 | |
| 746 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| 747 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| 748 | |
| 749 | /* finally, we can upload firmware now! */ |
| 750 | remains = fw_entry->size; |
| 751 | data = fw_entry->data; |
| 752 | offset = ISL38XX_DEV_FIRMWARE_ADDR; |
| 753 | |
| 754 | while (remains) { |
| 755 | unsigned int block_len = min(remains, (unsigned int)512); |
| 756 | memcpy(buf, data, block_len); |
| 757 | |
| 758 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); |
| 759 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 760 | dev_err(&priv->udev->dev, "(p54usb) firmware block " |
| 761 | "upload failed\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 762 | goto fail; |
| 763 | } |
| 764 | |
| 765 | P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base, |
| 766 | cpu_to_le32(0xc0000f00)); |
| 767 | |
| 768 | P54U_WRITE(NET2280_DEV_U32, |
| 769 | 0x0020 | (unsigned long)&devreg->direct_mem_win, 0); |
| 770 | P54U_WRITE(NET2280_DEV_U32, |
| 771 | 0x0020 | (unsigned long)&devreg->direct_mem_win, |
| 772 | cpu_to_le32(1)); |
| 773 | |
| 774 | P54U_WRITE(NET2280_DEV_U32, |
| 775 | 0x0024 | (unsigned long)&devreg->direct_mem_win, |
| 776 | cpu_to_le32(block_len)); |
| 777 | P54U_WRITE(NET2280_DEV_U32, |
| 778 | 0x0028 | (unsigned long)&devreg->direct_mem_win, |
| 779 | cpu_to_le32(offset)); |
| 780 | |
| 781 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr, |
| 782 | cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR)); |
| 783 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len, |
| 784 | cpu_to_le32(block_len >> 2)); |
| 785 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl, |
| 786 | cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER)); |
| 787 | |
| 788 | mdelay(10); |
| 789 | |
| 790 | P54U_READ(NET2280_DEV_U32, |
| 791 | 0x002C | (unsigned long)&devreg->direct_mem_win); |
| 792 | if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) || |
| 793 | !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 794 | dev_err(&priv->udev->dev, "(p54usb) firmware DMA " |
| 795 | "transfer failed\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 796 | goto fail; |
| 797 | } |
| 798 | |
| 799 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT, |
| 800 | cpu_to_le32(NET2280_FIFO_FLUSH)); |
| 801 | |
| 802 | remains -= block_len; |
| 803 | data += block_len; |
| 804 | offset += block_len; |
| 805 | } |
| 806 | |
| 807 | /* do ramboot */ |
| 808 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); |
| 809 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 810 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); |
| 811 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); |
| 812 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 813 | |
| 814 | mdelay(20); |
| 815 | |
| 816 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| 817 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 818 | |
| 819 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 820 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| 821 | |
| 822 | mdelay(100); |
| 823 | |
| 824 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| 825 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| 826 | |
| 827 | /* start up the firmware */ |
| 828 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, |
| 829 | cpu_to_le32(ISL38XX_INT_IDENT_INIT)); |
| 830 | |
| 831 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| 832 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| 833 | |
| 834 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, |
| 835 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE | |
| 836 | NET2280_USB_INTERRUPT_ENABLE)); |
| 837 | |
| 838 | P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int, |
| 839 | cpu_to_le32(ISL38XX_DEV_INT_RESET)); |
| 840 | |
| 841 | err = usb_interrupt_msg(priv->udev, |
| 842 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT), |
| 843 | buf, sizeof(__le32), &alen, 1000); |
| 844 | if (err || alen != sizeof(__le32)) |
| 845 | goto fail; |
| 846 | |
| 847 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| 848 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| 849 | |
| 850 | if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))) |
| 851 | err = -EINVAL; |
| 852 | |
| 853 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); |
| 854 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| 855 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| 856 | |
| 857 | #undef P54U_WRITE |
| 858 | #undef P54U_READ |
| 859 | |
| 860 | fail: |
| 861 | release_firmware(fw_entry); |
| 862 | kfree(buf); |
| 863 | return err; |
| 864 | } |
| 865 | |
| 866 | static int p54u_open(struct ieee80211_hw *dev) |
| 867 | { |
| 868 | struct p54u_priv *priv = dev->priv; |
| 869 | int err; |
| 870 | |
| 871 | err = p54u_init_urbs(dev); |
| 872 | if (err) { |
| 873 | return err; |
| 874 | } |
| 875 | |
| 876 | priv->common.open = p54u_init_urbs; |
| 877 | |
| 878 | return 0; |
| 879 | } |
| 880 | |
| 881 | static void p54u_stop(struct ieee80211_hw *dev) |
| 882 | { |
| 883 | /* TODO: figure out how to reliably stop the 3887 and net2280 so |
| 884 | the hardware is still usable next time we want to start it. |
| 885 | until then, we just stop listening to the hardware.. */ |
| 886 | p54u_free_urbs(dev); |
| 887 | return; |
| 888 | } |
| 889 | |
| 890 | static int __devinit p54u_probe(struct usb_interface *intf, |
| 891 | const struct usb_device_id *id) |
| 892 | { |
| 893 | struct usb_device *udev = interface_to_usbdev(intf); |
| 894 | struct ieee80211_hw *dev; |
| 895 | struct p54u_priv *priv; |
| 896 | int err; |
| 897 | unsigned int i, recognized_pipes; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 898 | |
| 899 | dev = p54_init_common(sizeof(*priv)); |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 900 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 901 | if (!dev) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 902 | dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 903 | return -ENOMEM; |
| 904 | } |
| 905 | |
| 906 | priv = dev->priv; |
| 907 | |
| 908 | SET_IEEE80211_DEV(dev, &intf->dev); |
| 909 | usb_set_intfdata(intf, dev); |
| 910 | priv->udev = udev; |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 911 | priv->intf = intf; |
| 912 | skb_queue_head_init(&priv->rx_queue); |
| 913 | init_usb_anchor(&priv->submitted); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 914 | |
| 915 | usb_get_dev(udev); |
| 916 | |
| 917 | /* really lazy and simple way of figuring out if we're a 3887 */ |
| 918 | /* TODO: should just stick the identification in the device table */ |
| 919 | i = intf->altsetting->desc.bNumEndpoints; |
| 920 | recognized_pipes = 0; |
| 921 | while (i--) { |
| 922 | switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) { |
| 923 | case P54U_PIPE_DATA: |
| 924 | case P54U_PIPE_MGMT: |
| 925 | case P54U_PIPE_BRG: |
| 926 | case P54U_PIPE_DEV: |
| 927 | case P54U_PIPE_DATA | USB_DIR_IN: |
| 928 | case P54U_PIPE_MGMT | USB_DIR_IN: |
| 929 | case P54U_PIPE_BRG | USB_DIR_IN: |
| 930 | case P54U_PIPE_DEV | USB_DIR_IN: |
| 931 | case P54U_PIPE_INT | USB_DIR_IN: |
| 932 | recognized_pipes++; |
| 933 | } |
| 934 | } |
| 935 | priv->common.open = p54u_open; |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 936 | priv->common.stop = p54u_stop; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 937 | if (recognized_pipes < P54U_PIPE_NUMBER) { |
| 938 | priv->hw_type = P54U_3887; |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 939 | err = p54u_upload_firmware_3887(dev); |
| 940 | if (priv->common.fw_interface == FW_LM87) { |
| 941 | dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr); |
| 942 | priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr); |
| 943 | priv->common.tx = p54u_tx_lm87; |
| 944 | } else |
| 945 | priv->common.tx = p54u_tx_3887; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 946 | } else { |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 947 | priv->hw_type = P54U_NET2280; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 948 | dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr); |
| 949 | priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr); |
| 950 | priv->common.tx = p54u_tx_net2280; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 951 | err = p54u_upload_firmware_net2280(dev); |
Christian Lamparter | 2b80848 | 2008-09-04 12:29:38 +0200 | [diff] [blame] | 952 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 953 | if (err) |
| 954 | goto err_free_dev; |
| 955 | |
Christian Lamparter | 7cb7707 | 2008-09-01 22:48:51 +0200 | [diff] [blame] | 956 | p54u_open(dev); |
| 957 | err = p54_read_eeprom(dev); |
| 958 | p54u_stop(dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 959 | if (err) |
| 960 | goto err_free_dev; |
| 961 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 962 | err = ieee80211_register_hw(dev); |
| 963 | if (err) { |
Christian Lamparter | 02e37ba | 2008-11-29 22:39:08 +0100 | [diff] [blame] | 964 | dev_err(&udev->dev, "(p54usb) Cannot register netdevice\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 965 | goto err_free_dev; |
| 966 | } |
| 967 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 968 | return 0; |
| 969 | |
| 970 | err_free_dev: |
| 971 | ieee80211_free_hw(dev); |
| 972 | usb_set_intfdata(intf, NULL); |
| 973 | usb_put_dev(udev); |
| 974 | return err; |
| 975 | } |
| 976 | |
| 977 | static void __devexit p54u_disconnect(struct usb_interface *intf) |
| 978 | { |
| 979 | struct ieee80211_hw *dev = usb_get_intfdata(intf); |
| 980 | struct p54u_priv *priv; |
| 981 | |
| 982 | if (!dev) |
| 983 | return; |
| 984 | |
| 985 | ieee80211_unregister_hw(dev); |
| 986 | |
| 987 | priv = dev->priv; |
| 988 | usb_put_dev(interface_to_usbdev(intf)); |
| 989 | p54_free_common(dev); |
| 990 | ieee80211_free_hw(dev); |
| 991 | } |
| 992 | |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 993 | static int p54u_pre_reset(struct usb_interface *intf) |
| 994 | { |
| 995 | return 0; |
| 996 | } |
| 997 | |
| 998 | static int p54u_post_reset(struct usb_interface *intf) |
| 999 | { |
| 1000 | return 0; |
| 1001 | } |
| 1002 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 1003 | static struct usb_driver p54u_driver = { |
Christian Lamparter | 32ddf07 | 2008-08-08 21:17:37 +0200 | [diff] [blame] | 1004 | .name = "p54usb", |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 1005 | .id_table = p54u_table, |
| 1006 | .probe = p54u_probe, |
| 1007 | .disconnect = p54u_disconnect, |
Christian Lamparter | 6982869 | 2008-12-26 19:08:31 +0100 | [diff] [blame^] | 1008 | .pre_reset = p54u_pre_reset, |
| 1009 | .post_reset = p54u_post_reset, |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 1010 | }; |
| 1011 | |
| 1012 | static int __init p54u_init(void) |
| 1013 | { |
| 1014 | return usb_register(&p54u_driver); |
| 1015 | } |
| 1016 | |
| 1017 | static void __exit p54u_exit(void) |
| 1018 | { |
| 1019 | usb_deregister(&p54u_driver); |
| 1020 | } |
| 1021 | |
| 1022 | module_init(p54u_init); |
| 1023 | module_exit(p54u_exit); |