diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54usb.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54usb.c | 777 |
1 files changed, 508 insertions, 269 deletions
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index 98ddbb3b327..043bd1c23c1 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -12,62 +12,104 @@ * published by the Free Software Foundation. */ -#include <linux/init.h> #include <linux/usb.h> #include <linux/pci.h> +#include <linux/slab.h> #include <linux/firmware.h> #include <linux/etherdevice.h> #include <linux/delay.h> #include <linux/crc32.h> +#include <linux/module.h> #include <net/mac80211.h> #include "p54.h" +#include "lmac.h" #include "p54usb.h" MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); MODULE_DESCRIPTION("Prism54 USB wireless driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("prism54usb"); +MODULE_FIRMWARE("isl3886usb"); +MODULE_FIRMWARE("isl3887usb"); -static struct usb_device_id p54u_table[] __devinitdata = { +/* + * 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[] = { /* Version 1 devices (pci chip + net2280) */ + {USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */ + {USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */ {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ + {USB_DEVICE(0x0675, 0x0530)}, /* DrayTek Vigor 530 */ + {USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */ {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ + {USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */ {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */ {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */ {USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */ {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */ {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */ {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */ + {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ + {USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */ {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ + {USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */ + {USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */ {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ + {USB_DEVICE(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(0x07aa, 0x0020)}, /* Corega WLUSB2GTST USB */ + {USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */ {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ + {USB_DEVICE(0x083a, 0x4531)}, /* T-Com Sinus 154 data II */ + {USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */ + {USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */ {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */ {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */ {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */ {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/ {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/ - {USB_DEVICE(0x0cde, 0x0006)}, /* Medion MD40900 */ + /* {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(0x09aa, 0x1000)}, /* Spinnaker Proto board */ {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */ + {USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */ {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ + {USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */ {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ + /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */ + {USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */ + {USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */ {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ + {USB_DEVICE(0x2001, 0x3705)}, /* D-Link DWL-G120 rev C1 */ + {USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */ {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ {} @@ -75,6 +117,26 @@ static struct usb_device_id p54u_table[] __devinitdata = { 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; @@ -82,21 +144,25 @@ static void p54u_rx_cb(struct urb *urb) struct ieee80211_hw *dev = info->dev; struct p54u_priv *priv = dev->priv; + skb_unlink(skb, &priv->rx_queue); + if (unlikely(urb->status)) { - info->urb = NULL; - usb_free_urb(urb); + dev_kfree_skb_irq(skb); return; } - skb_unlink(skb, &priv->rx_queue); skb_put(skb, urb->actual_length); - if (!priv->hw_type) - skb_pull(skb, sizeof(struct net2280_tx_hdr)); + + 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(MAX_RX_SIZE); + skb = dev_alloc_skb(priv->common.rx_mtu + 32); if (unlikely(!skb)) { - usb_free_urb(urb); /* TODO check rx queue length and refill *somewhere* */ return; } @@ -106,140 +172,221 @@ static void p54u_rx_cb(struct urb *urb) info->dev = dev; urb->transfer_buffer = skb_tail_pointer(skb); urb->context = skb; - skb_queue_tail(&priv->rx_queue, 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); - skb_queue_tail(&priv->rx_queue, skb); + 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); } - - usb_submit_urb(urb, GFP_ATOMIC); } static void p54u_tx_cb(struct urb *urb) { - usb_free_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_tx_free_cb(struct urb *urb) +static void p54u_stop(struct ieee80211_hw *dev) { - kfree(urb->transfer_buffer); - usb_free_urb(urb); + /* + * 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; + 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(MAX_RX_SIZE, GFP_KERNEL); - if (!skb) - break; + 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) { - kfree_skb(skb); - break; + ret = -ENOMEM; + goto err; } - 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); + + 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_submit_urb(entry, GFP_KERNEL); + + 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 void p54u_free_urbs(struct ieee80211_hw *dev) +static int p54u_open(struct ieee80211_hw *dev) { - struct p54u_priv *priv = dev->priv; - struct p54u_rx_info *info; - struct sk_buff *skb; + /* + * 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); +} - while ((skb = skb_dequeue(&priv->rx_queue))) { - info = (struct p54u_rx_info *) skb->cb; - if (!info->urb) - continue; +static __le32 p54u_lm87_chksum(const __le32 *data, size_t length) +{ + u32 chk = 0; - usb_kill_urb(info->urb); - kfree_skb(skb); + length >>= 2; + while (length--) { + chk ^= le32_to_cpu(*data++); + chk = (chk >> 5) ^ (chk << 3); } + + return cpu_to_le32(chk); } -static void p54u_tx_3887(struct ieee80211_hw *dev, struct p54_control_hdr *data, - size_t len, int free_on_tx) +static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb) { struct p54u_priv *priv = dev->priv; - struct urb *addr_urb, *data_urb; - - addr_urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!addr_urb) - return; + 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) { - usb_free_urb(addr_urb); + p54_free_skb(dev, skb); return; } - usb_fill_bulk_urb(addr_urb, priv->udev, - usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), &data->req_id, - sizeof(data->req_id), p54u_tx_cb, dev); - usb_fill_bulk_urb(data_urb, priv->udev, - usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), data, len, - free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev); + hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len); + hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id; - usb_submit_urb(addr_urb, GFP_ATOMIC); - usb_submit_urb(data_urb, GFP_ATOMIC); + 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 p54_control_hdr *data, - size_t len, int free_on_tx) +static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb) { struct p54u_priv *priv = dev->priv; - struct urb *int_urb, *data_urb; - struct net2280_tx_hdr *hdr; - struct net2280_reg_write *reg; + 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) - return; + goto out; int_urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!int_urb) { - kfree(reg); - return; - } + if (!int_urb) + goto out; data_urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!data_urb) { - kfree(reg); - usb_free_urb(int_urb); - return; - } + 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); - len += sizeof(*data); - hdr = (void *)data - sizeof(*hdr); memset(hdr, 0, sizeof(*hdr)); - hdr->device_addr = data->req_id; - hdr->len = cpu_to_le16(len); + 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_free_cb, dev); - usb_submit_urb(int_urb, GFP_ATOMIC); + 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, len + sizeof(*hdr), - free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev); - usb_submit_urb(data_urb, GFP_ATOMIC); + 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, @@ -301,119 +448,83 @@ static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep, data, len, &alen, 2000); } -static int p54u_read_eeprom(struct ieee80211_hw *dev) +static int p54u_device_reset(struct ieee80211_hw *dev) { struct p54u_priv *priv = dev->priv; - void *buf; - struct p54_control_hdr *hdr; - int err, alen; - size_t offset = priv->hw_type ? 0x10 : 0x20; - - buf = kmalloc(0x2020, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "prism54usb: cannot allocate memory for " - "eeprom readback!\n"); - return -ENOMEM; - } - - if (priv->hw_type) { - *((u32 *) buf) = priv->common.rx_start; - err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); - if (err) { - printk(KERN_ERR "prism54usb: addr send failed\n"); - goto fail; - } - } else { - struct net2280_reg_write *reg = buf; - 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); - err = p54u_bulk_msg(priv, P54U_PIPE_DEV, buf, sizeof(*reg)); - if (err) { - printk(KERN_ERR "prism54usb: dev_int send failed\n"); - goto fail; + 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; } } - hdr = buf + priv->common.tx_hdr_len; - p54_fill_eeprom_readback(hdr); - hdr->req_id = cpu_to_le32(priv->common.rx_start); - if (priv->common.tx_hdr_len) { - struct net2280_tx_hdr *tx_hdr = buf; - tx_hdr->device_addr = hdr->req_id; - tx_hdr->len = cpu_to_le16(EEPROM_READBACK_LEN); - } + ret = usb_reset_device(priv->udev); + if (lock) + usb_unlock_device(priv->udev); - /* we can just pretend to send 0x2000 bytes of nothing in the headers */ - err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, - EEPROM_READBACK_LEN + priv->common.tx_hdr_len); - if (err) { - printk(KERN_ERR "prism54usb: eeprom req send failed\n"); - goto fail; - } + if (ret) + dev_err(&priv->udev->dev, "(p54usb) unable to reset " + "device (%d)!\n", ret); - err = usb_bulk_msg(priv->udev, - usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), - buf, 0x2020, &alen, 1000); - if (!err && alen > offset) { - p54_parse_eeprom(dev, (u8 *)buf + offset, alen - offset); - } else { - printk(KERN_ERR "prism54usb: eeprom read failed!\n"); - err = -EINVAL; - goto fail; - } + 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; - fail: + buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL); + if (!buf) + return -ENOMEM; + ret = p54u_bulk_msg(priv, P54U_PIPE_DATA, + buf, 4); kfree(buf); - return err; + 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) { - static char start_string[] = "~~~~<\r"; struct p54u_priv *priv = dev->priv; - const struct firmware *fw_entry = NULL; int err, alen; u8 carry = 0; - u8 *buf, *tmp, *data; + u8 *buf, *tmp; + const u8 *data; unsigned int left, remains, block_size; struct x2_header *hdr; unsigned long timeout; - tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "p54usb: cannot allocate firmware upload buffer!\n"); - err = -ENOMEM; - goto err_bufalloc; - } - - memcpy(buf, start_string, 4); - err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 4); - if (err) { - printk(KERN_ERR "p54usb: reset failed! (%d)\n", err); - goto err_reset; - } - - err = request_firmware(&fw_entry, "isl3887usb_bare", &priv->udev->dev); - if (err) { - printk(KERN_ERR "p54usb: cannot find firmware (isl3887usb_bare)!\n"); - goto err_req_fw_failed; - } + err = p54u_firmware_reset_3887(dev); + if (err) + return err; - p54_parse_firmware(dev, fw_entry); + tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); + if (!buf) + return -ENOMEM; - left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size); - strcpy(buf, start_string); - left -= strlen(start_string); - tmp += strlen(start_string); + left = block_size = min_t(size_t, P54U_FW_BLOCK, priv->fw->size); + strcpy(buf, p54u_firmware_upload_3887); + left -= strlen(p54u_firmware_upload_3887); + tmp += strlen(p54u_firmware_upload_3887); - data = fw_entry->data; - remains = fw_entry->size; + data = priv->fw->data; + remains = priv->fw->size; - hdr = (struct x2_header *)(buf + strlen(start_string)); + hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887)); memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); - hdr->fw_length = cpu_to_le32(fw_entry->size); + hdr->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); @@ -446,7 +557,8 @@ static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); if (err) { - printk(KERN_ERR "prism54usb: firmware upload failed!\n"); + dev_err(&priv->udev->dev, "(p54usb) firmware " + "upload failed!\n"); goto err_upload_failed; } @@ -454,13 +566,13 @@ static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); } - *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, fw_entry->data, fw_entry->size)); + *((__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) { - printk(KERN_ERR "prism54usb: firmware upload failed!\n"); + 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))) { @@ -468,25 +580,27 @@ static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) 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"); + dev_err(&priv->udev->dev, "(p54usb) firmware boot " + "timed out!\n"); err = -ETIMEDOUT; break; } } - if (err) + 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) { - printk(KERN_ERR "prism54usb: firmware boot failed!\n"); + dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n"); goto err_upload_failed; } @@ -504,40 +618,24 @@ static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) if (err) goto err_upload_failed; - err_upload_failed: - release_firmware(fw_entry); - err_req_fw_failed: - err_reset: +err_upload_failed: 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; + const u8 *data; buf = kmalloc(512, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "p54usb: firmware buffer alloc failed!\n"); + if (!buf) 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 {\ @@ -638,8 +736,8 @@ static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); /* finally, we can upload firmware now! */ - remains = fw_entry->size; - data = fw_entry->data; + remains = priv->fw->size; + data = priv->fw->data; offset = ISL38XX_DEV_FIRMWARE_ADDR; while (remains) { @@ -648,8 +746,8 @@ static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); if (err) { - printk(KERN_ERR "prism54usb: firmware block upload " - "failed\n"); + dev_err(&priv->udev->dev, "(p54usb) firmware block " + "upload failed\n"); goto fail; } @@ -682,8 +780,8 @@ static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) 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"); + dev_err(&priv->udev->dev, "(p54usb) firmware DMA " + "transfer failed\n"); goto fail; } @@ -748,37 +846,146 @@ static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) #undef P54U_WRITE #undef P54U_READ - fail: - release_firmware(fw_entry); +fail: kfree(buf); return err; } -static int p54u_open(struct ieee80211_hw *dev) +static int p54_find_type(struct p54u_priv *priv) { - struct p54u_priv *priv = dev->priv; - int err; + int i; - err = p54u_init_urbs(dev); - if (err) { - return err; + 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; } - priv->common.open = p54u_init_urbs; + 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_stop(struct ieee80211_hw *dev) +static void p54u_load_firmware_cb(const struct firmware *firmware, + void *context) { - /* 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; + 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); + usb_put_dev(udev); + } + + return err; } -static int __devinit p54u_probe(struct usb_interface *intf, +static int p54u_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(intf); @@ -786,19 +993,23 @@ static int __devinit p54u_probe(struct usb_interface *intf, 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"); + 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); @@ -821,90 +1032,118 @@ static int __devinit p54u_probe(struct usb_interface *intf, } } 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; - priv->common.tx = p54u_tx_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; } - 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_load_firmware(dev, intf); + if (err) { + usb_put_dev(udev); + p54_free_common(dev); + } + return err; +} - err = p54u_read_eeprom(dev); - if (err) - goto err_free_dev; +static void p54u_disconnect(struct usb_interface *intf) +{ + struct ieee80211_hw *dev = usb_get_intfdata(intf); + struct p54u_priv *priv; - if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { - u8 perm_addr[ETH_ALEN]; + if (!dev) + return; - printk(KERN_WARNING "prism54usb: Invalid hwaddr! Using randomly generated MAC addr\n"); - random_ether_addr(perm_addr); - SET_IEEE80211_PERM_ADDR(dev, perm_addr); - } + priv = dev->priv; + wait_for_completion(&priv->fw_wait_load); + p54_unregister_common(dev); - skb_queue_head_init(&priv->rx_queue); + usb_put_dev(interface_to_usbdev(intf)); + release_firmware(priv->fw); + p54_free_common(dev); +} - err = ieee80211_register_hw(dev); - if (err) { - printk(KERN_ERR "prism54usb: Cannot register netdevice\n"); - goto err_free_dev; - } +static int p54u_pre_reset(struct usb_interface *intf) +{ + struct ieee80211_hw *dev = usb_get_intfdata(intf); - printk(KERN_INFO "%s: hwaddr %s, isl38%02x\n", - wiphy_name(dev->wiphy), - print_mac(mac, dev->wiphy->perm_addr), - priv->common.version); + if (!dev) + return -ENODEV; + p54u_stop(dev); return 0; - - err_free_dev: - ieee80211_free_hw(dev); - usb_set_intfdata(intf, NULL); - usb_put_dev(udev); - return err; } -static void __devexit p54u_disconnect(struct usb_interface *intf) +static int p54u_resume(struct usb_interface *intf) { struct ieee80211_hw *dev = usb_get_intfdata(intf); struct p54u_priv *priv; if (!dev) - return; + 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; - ieee80211_unregister_hw(dev); + err = p54u_resume(intf); + if (err) + return err; + /* reinitialize old device state */ priv = dev->priv; - usb_put_dev(interface_to_usbdev(intf)); - p54_free_common(dev); - ieee80211_free_hw(dev); + 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 = "prism54usb", + .name = "p54usb", .id_table = p54u_table, .probe = p54u_probe, .disconnect = 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 */ + .soft_unbind = 1, + .disable_hub_initiated_lpm = 1, }; -static int __init p54u_init(void) -{ - return usb_register(&p54u_driver); -} - -static void __exit p54u_exit(void) -{ - usb_deregister(&p54u_driver); -} - -module_init(p54u_init); -module_exit(p54u_exit); +module_usb_driver(p54u_driver); |