/* * Linux device driver for USB based Prism54 * * Copyright (c) 2006, Michael Wu * * Based on the islsm (softmac prism54) driver, which is: * Copyright 2004-2006 Jean-Baptiste Note , et al. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include "p54.h" #include "lmac.h" #include "p54usb.h" MODULE_AUTHOR("Michael Wu "); MODULE_DESCRIPTION("Prism54 USB wireless driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("prism54usb"); MODULE_FIRMWARE("isl3886usb"); MODULE_FIRMWARE("isl3887usb"); /* * Note: * * Always update our wiki's device list (located at: * http://wireless.kernel.org/en/users/Drivers/p54/devices ), * whenever you add a new device. */ static struct usb_device_id p54u_table[] __devinitdata = { /* Version 1 devices (pci chip + net2280) */ {USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */ {USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */ {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ {USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */ {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ {USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */ {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */ {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */ {USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */ {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */ {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */ {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */ {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ {USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */ {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ {USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */ {USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */ {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ {USB_DEVICE(0x1435, 0x0210)}, /* Inventel UR054G */ {USB_DEVICE(0x15a9, 0x0002)}, /* Gemtek WUBI-100GW 802.11g */ {USB_DEVICE(0x1630, 0x0005)}, /* 2Wire 802.11g USB (v1) / Z-Com */ {USB_DEVICE(0x182d, 0x096b)}, /* Sitecom WL-107 */ {USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */ {USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */ {USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */ {USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */ {USB_DEVICE(0x2001, 0x3762)}, /* Conceptronic C54U */ {USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */ {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ /* Version 2 devices (3887) */ {USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */ {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */ {USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */ {USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */ {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */ {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ {USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */ {USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */ {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */ {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */ {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */ {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/ {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/ /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above, * just noting it here for clarity */ {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */ {USB_DEVICE(0x0cde, 0x0015)}, /* Zcomax XG-705A */ {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */ {USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */ {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ {USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */ {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ {USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */ {USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */ {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ {USB_DEVICE(0x2001, 0x3705)}, /* D-Link DWL-G120 rev C1 */ {USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */ {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ {} }; MODULE_DEVICE_TABLE(usb, p54u_table); static const struct { u32 intf; enum p54u_hw_type type; const char *fw; char hw[20]; } p54u_fwlist[__NUM_P54U_HWTYPES] = { { .type = P54U_NET2280, .intf = FW_LM86, .fw = "isl3886usb", .hw = "ISL3886 + net2280", }, { .type = P54U_3887, .intf = FW_LM87, .fw = "isl3887usb", .hw = "ISL3887", }, }; static void p54u_rx_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *) urb->context; struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb; struct ieee80211_hw *dev = info->dev; struct p54u_priv *priv = dev->priv; skb_unlink(skb, &priv->rx_queue); if (unlikely(urb->status)) { dev_kfree_skb_irq(skb); return; } skb_put(skb, urb->actual_length); if (priv->hw_type == P54U_NET2280) skb_pull(skb, priv->common.tx_hdr_len); if (priv->common.fw_interface == FW_LM87) { skb_pull(skb, 4); skb_put(skb, 4); } if (p54_rx(dev, skb)) { skb = dev_alloc_skb(priv->common.rx_mtu + 32); if (unlikely(!skb)) { /* TODO check rx queue length and refill *somewhere* */ return; } info = (struct p54u_rx_info *) skb->cb; info->urb = urb; info->dev = dev; urb->transfer_buffer = skb_tail_pointer(skb); urb->context = skb; } else { if (priv->hw_type == P54U_NET2280) skb_push(skb, priv->common.tx_hdr_len); if (priv->common.fw_interface == FW_LM87) { skb_push(skb, 4); skb_put(skb, 4); } skb_reset_tail_pointer(skb); skb_trim(skb, 0); urb->transfer_buffer = skb_tail_pointer(skb); } skb_queue_tail(&priv->rx_queue, skb); usb_anchor_urb(urb, &priv->submitted); if (usb_submit_urb(urb, GFP_ATOMIC)) { skb_unlink(skb, &priv->rx_queue); usb_unanchor_urb(urb); dev_kfree_skb_irq(skb); } } static void p54u_tx_cb(struct urb *urb) { struct sk_buff *skb = urb->context; struct ieee80211_hw *dev = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); p54_free_skb(dev, skb); } static void p54u_tx_dummy_cb(struct urb *urb) { } static void p54u_free_urbs(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; usb_kill_anchored_urbs(&priv->submitted); } static void p54u_stop(struct ieee80211_hw *dev) { /* * TODO: figure out how to reliably stop the 3887 and net2280 so * the hardware is still usable next time we want to start it. * until then, we just stop listening to the hardware.. */ p54u_free_urbs(dev); } static int p54u_init_urbs(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; struct urb *entry = NULL; struct sk_buff *skb; struct p54u_rx_info *info; int ret = 0; while (skb_queue_len(&priv->rx_queue) < 32) { skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL); if (!skb) { ret = -ENOMEM; goto err; } entry = usb_alloc_urb(0, GFP_KERNEL); if (!entry) { ret = -ENOMEM; goto err; } usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), skb_tail_pointer(skb), priv->common.rx_mtu + 32, p54u_rx_cb, skb); info = (struct p54u_rx_info *) skb->cb; info->urb = entry; info->dev = dev; skb_queue_tail(&priv->rx_queue, skb); usb_anchor_urb(entry, &priv->submitted); ret = usb_submit_urb(entry, GFP_KERNEL); if (ret) { skb_unlink(skb, &priv->rx_queue); usb_unanchor_urb(entry); goto err; } usb_free_urb(entry); entry = NULL; } return 0; err: usb_free_urb(entry); kfree_skb(skb); p54u_free_urbs(dev); return ret; } static int p54u_open(struct ieee80211_hw *dev) { /* * TODO: Because we don't know how to reliably stop the 3887 and * the isl3886+net2280, other than brutally cut off all * communications. We have to reinitialize the urbs on every start. */ return p54u_init_urbs(dev); } static __le32 p54u_lm87_chksum(const __le32 *data, size_t length) { u32 chk = 0; length >>= 2; while (length--) { chk ^= le32_to_cpu(*data++); chk = (chk >> 5) ^ (chk << 3); } return cpu_to_le32(chk); } static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb) { struct p54u_priv *priv = dev->priv; struct urb *data_urb; struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); data_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!data_urb) { p54_free_skb(dev, skb); return; } hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len); hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id; usb_fill_bulk_urb(data_urb, priv->udev, usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? p54u_tx_cb : p54u_tx_dummy_cb, skb); data_urb->transfer_flags |= URB_ZERO_PACKET; usb_anchor_urb(data_urb, &priv->submitted); if (usb_submit_urb(data_urb, GFP_ATOMIC)) { usb_unanchor_urb(data_urb); p54_free_skb(dev, skb); } usb_free_urb(data_urb); } static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb) { struct p54u_priv *priv = dev->priv; struct urb *int_urb = NULL, *data_urb = NULL; struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr); struct net2280_reg_write *reg = NULL; int err = -ENOMEM; reg = kmalloc(sizeof(*reg), GFP_ATOMIC); if (!reg) goto out; int_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!int_urb) goto out; data_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!data_urb) goto out; reg->port = cpu_to_le16(NET2280_DEV_U32); reg->addr = cpu_to_le32(P54U_DEV_BASE); reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA); memset(hdr, 0, sizeof(*hdr)); hdr->len = cpu_to_le16(skb->len); hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id; usb_fill_bulk_urb(int_urb, priv->udev, usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg), p54u_tx_dummy_cb, dev); /* * URB_FREE_BUFFER triggers a code path in the USB subsystem that will * free what is inside the transfer_buffer after the last reference to * the int_urb is dropped. */ int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET; reg = NULL; usb_fill_bulk_urb(data_urb, priv->udev, usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ? p54u_tx_cb : p54u_tx_dummy_cb, skb); data_urb->transfer_flags |= URB_ZERO_PACKET; usb_anchor_urb(int_urb, &priv->submitted); err = usb_submit_urb(int_urb, GFP_ATOMIC); if (err) { usb_unanchor_urb(int_urb); goto out; } usb_anchor_urb(data_urb, &priv->submitted); err = usb_submit_urb(data_urb, GFP_ATOMIC); if (err) { usb_unanchor_urb(data_urb); goto out; } out: usb_free_urb(int_urb); usb_free_urb(data_urb); if (err) { kfree(reg); p54_free_skb(dev, skb); } } static int p54u_write(struct p54u_priv *priv, struct net2280_reg_write *buf, enum net2280_op_type type, __le32 addr, __le32 val) { unsigned int ep; int alen; if (type & 0x0800) ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV); else ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG); buf->port = cpu_to_le16(type); buf->addr = addr; buf->val = val; return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000); } static int p54u_read(struct p54u_priv *priv, void *buf, enum net2280_op_type type, __le32 addr, __le32 *val) { struct net2280_reg_read *read = buf; __le32 *reg = buf; unsigned int ep; int alen, err; if (type & 0x0800) ep = P54U_PIPE_DEV; else ep = P54U_PIPE_BRG; read->port = cpu_to_le16(type); read->addr = addr; err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), read, sizeof(*read), &alen, 1000); if (err) return err; err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep), reg, sizeof(*reg), &alen, 1000); if (err) return err; *val = *reg; return 0; } static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep, void *data, size_t len) { int alen; return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), data, len, &alen, 2000); } static int p54u_device_reset(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING); if (lock) { ret = usb_lock_device_for_reset(priv->udev, priv->intf); if (ret < 0) { dev_err(&priv->udev->dev, "(p54usb) unable to lock " "device for reset (%d)!\n", ret); return ret; } } ret = usb_reset_device(priv->udev); if (lock) usb_unlock_device(priv->udev); if (ret) dev_err(&priv->udev->dev, "(p54usb) unable to reset " "device (%d)!\n", ret); return ret; } static const char p54u_romboot_3887[] = "~~~~"; static int p54u_firmware_reset_3887(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; u8 *buf; int ret; buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL); if (!buf) return -ENOMEM; ret = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 4); kfree(buf); if (ret) dev_err(&priv->udev->dev, "(p54usb) unable to jump to " "boot ROM (%d)!\n", ret); return ret; } static const char p54u_firmware_upload_3887[] = "<\r"; static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; int err, alen; u8 carry = 0; u8 *buf, *tmp; const u8 *data; unsigned int left, remains, block_size; struct x2_header *hdr; unsigned long timeout; err = p54u_firmware_reset_3887(dev); if (err) return err; tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); if (!buf) { dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware" "upload buffer!\n"); return -ENOMEM; } left = block_size = min((size_t)P54U_FW_BLOCK, priv->fw->size); strcpy(buf, p54u_firmware_upload_3887); left -= strlen(p54u_firmware_upload_3887); tmp += strlen(p54u_firmware_upload_3887); data = priv->fw->data; remains = priv->fw->size; hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887)); memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); hdr->fw_length = cpu_to_le32(priv->fw->size); hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr, sizeof(u32)*2)); left -= sizeof(*hdr); tmp += sizeof(*hdr); while (remains) { while (left--) { if (carry) { *tmp++ = carry; carry = 0; remains--; continue; } switch (*data) { case '~': *tmp++ = '}'; carry = '^'; break; case '}': *tmp++ = '}'; carry = ']'; break; default: *tmp++ = *data; remains--; break; } data++; } err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); if (err) { dev_err(&priv->udev->dev, "(p54usb) firmware " "upload failed!\n"); goto err_upload_failed; } tmp = buf; left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); } *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data, priv->fw->size)); err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); if (err) { dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); goto err_upload_failed; } timeout = jiffies + msecs_to_jiffies(1000); while (!(err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { if (alen > 2 && !memcmp(buf, "OK", 2)) break; if (alen > 5 && !memcmp(buf, "ERROR", 5)) { err = -EINVAL; break; } if (time_after(jiffies, timeout)) { dev_err(&priv->udev->dev, "(p54usb) firmware boot " "timed out!\n"); err = -ETIMEDOUT; break; } } if (err) { dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n"); goto err_upload_failed; } buf[0] = 'g'; buf[1] = '\r'; err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2); if (err) { dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n"); goto err_upload_failed; } timeout = jiffies + msecs_to_jiffies(1000); while (!(err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { if (alen > 0 && buf[0] == 'g') break; if (time_after(jiffies, timeout)) { err = -ETIMEDOUT; break; } } if (err) goto err_upload_failed; err_upload_failed: kfree(buf); return err; } static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE; int err, alen; void *buf; __le32 reg; unsigned int remains, offset; const u8 *data; buf = kmalloc(512, GFP_KERNEL); if (!buf) { dev_err(&priv->udev->dev, "(p54usb) firmware buffer " "alloc failed!\n"); return -ENOMEM; } #define P54U_WRITE(type, addr, data) \ do {\ err = p54u_write(priv, buf, type,\ cpu_to_le32((u32)(unsigned long)addr), data);\ if (err) \ goto fail;\ } while (0) #define P54U_READ(type, addr) \ do {\ err = p54u_read(priv, buf, type,\ cpu_to_le32((u32)(unsigned long)addr), ®);\ if (err)\ goto fail;\ } while (0) /* power down net2280 bridge */ P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL); reg |= cpu_to_le32(P54U_BRG_POWER_DOWN); reg &= cpu_to_le32(~P54U_BRG_POWER_UP); P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); mdelay(100); /* power up bridge */ reg |= cpu_to_le32(P54U_BRG_POWER_UP); reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN); P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); mdelay(100); P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT, cpu_to_le32(NET2280_CLK_30Mhz | NET2280_PCI_ENABLE | NET2280_PCI_SOFT_RESET)); mdelay(20); P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND, cpu_to_le32(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER)); P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0, cpu_to_le32(NET2280_BASE)); P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS); reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT); P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg); // TODO: we really need this? P54U_READ(NET2280_BRG_U32, NET2280_RELNUM); P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP, cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP, cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2, cpu_to_le32(NET2280_BASE2)); /* finally done setting up the bridge */ P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND, cpu_to_le32(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER)); P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0); P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0, cpu_to_le32(P54U_DEV_BASE)); P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); /* do romboot */ P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0); P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); mdelay(20); reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); mdelay(20); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); mdelay(100); P54U_READ(NET2280_DEV_U32, &devreg->int_ident); P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); /* finally, we can upload firmware now! */ remains = priv->fw->size; data = priv->fw->data; offset = ISL38XX_DEV_FIRMWARE_ADDR; while (remains) { unsigned int block_len = min(remains, (unsigned int)512); memcpy(buf, data, block_len); err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); if (err) { dev_err(&priv->udev->dev, "(p54usb) firmware block " "upload failed\n"); goto fail; } P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base, cpu_to_le32(0xc0000f00)); P54U_WRITE(NET2280_DEV_U32, 0x0020 | (unsigned long)&devreg->direct_mem_win, 0); P54U_WRITE(NET2280_DEV_U32, 0x0020 | (unsigned long)&devreg->direct_mem_win, cpu_to_le32(1)); P54U_WRITE(NET2280_DEV_U32, 0x0024 | (unsigned long)&devreg->direct_mem_win, cpu_to_le32(block_len)); P54U_WRITE(NET2280_DEV_U32, 0x0028 | (unsigned long)&devreg->direct_mem_win, cpu_to_le32(offset)); P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr, cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR)); P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len, cpu_to_le32(block_len >> 2)); P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl, cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER)); mdelay(10); P54U_READ(NET2280_DEV_U32, 0x002C | (unsigned long)&devreg->direct_mem_win); if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) || !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) { dev_err(&priv->udev->dev, "(p54usb) firmware DMA " "transfer failed\n"); goto fail; } P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT, cpu_to_le32(NET2280_FIFO_FLUSH)); remains -= block_len; data += block_len; offset += block_len; } /* do ramboot */ P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); mdelay(20); reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); mdelay(100); P54U_READ(NET2280_DEV_U32, &devreg->int_ident); P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); /* start up the firmware */ P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT)); P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE | NET2280_USB_INTERRUPT_ENABLE)); P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET)); err = usb_interrupt_msg(priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT), buf, sizeof(__le32), &alen, 1000); if (err || alen != sizeof(__le32)) goto fail; P54U_READ(NET2280_DEV_U32, &devreg->int_ident); P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))) err = -EINVAL; P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); #undef P54U_WRITE #undef P54U_READ fail: kfree(buf); return err; } static int p54_find_type(struct p54u_priv *priv) { int i; for (i = 0; i < __NUM_P54U_HWTYPES; i++) if (p54u_fwlist[i].type == priv->hw_type) break; if (i == __NUM_P54U_HWTYPES) return -EOPNOTSUPP; return i; } static int p54u_start_ops(struct p54u_priv *priv) { struct ieee80211_hw *dev = priv->common.hw; int ret; ret = p54_parse_firmware(dev, priv->fw); if (ret) goto err_out; ret = p54_find_type(priv); if (ret < 0) goto err_out; if (priv->common.fw_interface != p54u_fwlist[ret].intf) { dev_err(&priv->udev->dev, "wrong firmware, please get " "a firmware for \"%s\" and try again.\n", p54u_fwlist[ret].hw); ret = -ENODEV; goto err_out; } ret = priv->upload_fw(dev); if (ret) goto err_out; ret = p54u_open(dev); if (ret) goto err_out; ret = p54_read_eeprom(dev); if (ret) goto err_stop; p54u_stop(dev); ret = p54_register_common(dev, &priv->udev->dev); if (ret) goto err_stop; return 0; err_stop: p54u_stop(dev); err_out: /* * p54u_disconnect will do the rest of the * cleanup */ return ret; } static void p54u_load_firmware_cb(const struct firmware *firmware, void *context) { struct p54u_priv *priv = context; struct usb_device *udev = priv->udev; int err; complete(&priv->fw_wait_load); if (firmware) { priv->fw = firmware; err = p54u_start_ops(priv); } else { err = -ENOENT; dev_err(&udev->dev, "Firmware not found.\n"); } if (err) { struct device *parent = priv->udev->dev.parent; dev_err(&udev->dev, "failed to initialize device (%d)\n", err); if (parent) device_lock(parent); device_release_driver(&udev->dev); /* * At this point p54u_disconnect has already freed * the "priv" context. Do not use it anymore! */ priv = NULL; if (parent) device_unlock(parent); } usb_put_dev(udev); } static int p54u_load_firmware(struct ieee80211_hw *dev, struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); struct p54u_priv *priv = dev->priv; struct device *device = &udev->dev; int err, i; BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES); init_completion(&priv->fw_wait_load); i = p54_find_type(priv); if (i < 0) return i; dev_info(&priv->udev->dev, "Loading firmware file %s\n", p54u_fwlist[i].fw); usb_get_dev(udev); err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw, device, GFP_KERNEL, priv, p54u_load_firmware_cb); if (err) { dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s " "(%d)!\n", p54u_fwlist[i].fw, err); } return err; } static int __devinit p54u_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(intf); struct ieee80211_hw *dev; struct p54u_priv *priv; int err; unsigned int i, recognized_pipes; dev = p54_init_common(sizeof(*priv)); if (!dev) { dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n"); return -ENOMEM; } priv = dev->priv; priv->hw_type = P54U_INVALID_HW; SET_IEEE80211_DEV(dev, &intf->dev); usb_set_intfdata(intf, dev); priv->udev = udev; priv->intf = intf; skb_queue_head_init(&priv->rx_queue); init_usb_anchor(&priv->submitted); usb_get_dev(udev); /* really lazy and simple way of figuring out if we're a 3887 */ /* TODO: should just stick the identification in the device table */ i = intf->altsetting->desc.bNumEndpoints; recognized_pipes = 0; while (i--) { switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) { case P54U_PIPE_DATA: case P54U_PIPE_MGMT: case P54U_PIPE_BRG: case P54U_PIPE_DEV: case P54U_PIPE_DATA | USB_DIR_IN: case P54U_PIPE_MGMT | USB_DIR_IN: case P54U_PIPE_BRG | USB_DIR_IN: case P54U_PIPE_DEV | USB_DIR_IN: case P54U_PIPE_INT | USB_DIR_IN: recognized_pipes++; } } priv->common.open = p54u_open; priv->common.stop = p54u_stop; if (recognized_pipes < P54U_PIPE_NUMBER) { #ifdef CONFIG_PM /* ISL3887 needs a full reset on resume */ udev->reset_resume = 1; #endif /* CONFIG_PM */ err = p54u_device_reset(dev); priv->hw_type = P54U_3887; dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr); priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr); priv->common.tx = p54u_tx_lm87; priv->upload_fw = p54u_upload_firmware_3887; } else { priv->hw_type = P54U_NET2280; dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr); priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr); priv->common.tx = p54u_tx_net2280; priv->upload_fw = p54u_upload_firmware_net2280; } err = p54u_load_firmware(dev, intf); 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; priv = dev->priv; wait_for_completion(&priv->fw_wait_load); p54_unregister_common(dev); usb_put_dev(interface_to_usbdev(intf)); release_firmware(priv->fw); p54_free_common(dev); } static int p54u_pre_reset(struct usb_interface *intf) { struct ieee80211_hw *dev = usb_get_intfdata(intf); if (!dev) return -ENODEV; p54u_stop(dev); return 0; } static int p54u_resume(struct usb_interface *intf) { struct ieee80211_hw *dev = usb_get_intfdata(intf); struct p54u_priv *priv; if (!dev) return -ENODEV; priv = dev->priv; if (unlikely(!(priv->upload_fw && priv->fw))) return 0; return priv->upload_fw(dev); } static int p54u_post_reset(struct usb_interface *intf) { struct ieee80211_hw *dev = usb_get_intfdata(intf); struct p54u_priv *priv; int err; err = p54u_resume(intf); if (err) return err; /* reinitialize old device state */ priv = dev->priv; if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) ieee80211_restart_hw(dev); return 0; } #ifdef CONFIG_PM static int p54u_suspend(struct usb_interface *intf, pm_message_t message) { return p54u_pre_reset(intf); } #endif /* CONFIG_PM */ static struct usb_driver p54u_driver = { .name = "p54usb", .id_table = p54u_table, .probe = p54u_probe, .disconnect = __devexit_p(p54u_disconnect), .pre_reset = p54u_pre_reset, .post_reset = p54u_post_reset, #ifdef CONFIG_PM .suspend = p54u_suspend, .resume = p54u_resume, .reset_resume = p54u_resume, #endif /* CONFIG_PM */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)) .soft_unbind = 1, #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)) .disable_hub_initiated_lpm = 1, #endif }; module_usb_driver(p54u_driver);