| |
| /* |
| * Linux device driver for USB based Prism54 |
| * |
| * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> |
| * |
| * Based on the islsm (softmac prism54) driver, which is: |
| * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, 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 <linux/init.h> |
| #include <linux/usb.h> |
| #include <linux/pci.h> |
| #include <linux/firmware.h> |
| #include <linux/etherdevice.h> |
| #include <linux/delay.h> |
| #include <linux/crc32.h> |
| #include <net/mac80211.h> |
| |
| #include "p54.h" |
| #include "p54usb.h" |
| |
| MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
| MODULE_DESCRIPTION("Prism54 USB wireless driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("prism54usb"); |
| |
| static struct usb_device_id p54u_table[] __devinitdata = { |
| /* Version 1 devices (pci chip + net2280) */ |
| {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ |
| {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ |
| {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(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ |
| {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ |
| {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(0x5041, 0x2234)}, /* Linksys WUSB54G */ |
| {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ |
| |
| /* Version 2 devices (3887) */ |
| {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ |
| {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ |
| {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */ |
| {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */ |
| {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ |
| {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, 0x0008)}, /* Sagem XG703A */ |
| {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ |
| {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ |
| {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */ |
| {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ |
| {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ |
| {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ |
| {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ |
| {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, p54u_table); |
| |
| 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; |
| |
| if (unlikely(urb->status)) { |
| info->urb = NULL; |
| usb_free_urb(urb); |
| 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 (p54_rx(dev, skb)) { |
| skb = dev_alloc_skb(MAX_RX_SIZE); |
| if (unlikely(!skb)) { |
| usb_free_urb(urb); |
| /* 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; |
| skb_queue_tail(&priv->rx_queue, skb); |
| } else { |
| skb_trim(skb, 0); |
| skb_queue_tail(&priv->rx_queue, skb); |
| } |
| |
| usb_submit_urb(urb, GFP_ATOMIC); |
| } |
| |
| static void p54u_tx_cb(struct urb *urb) |
| { |
| usb_free_urb(urb); |
| } |
| |
| static void p54u_tx_free_cb(struct urb *urb) |
| { |
| kfree(urb->transfer_buffer); |
| usb_free_urb(urb); |
| } |
| |
| static int p54u_init_urbs(struct ieee80211_hw *dev) |
| { |
| struct p54u_priv *priv = dev->priv; |
| struct urb *entry; |
| struct sk_buff *skb; |
| struct p54u_rx_info *info; |
| |
| while (skb_queue_len(&priv->rx_queue) < 32) { |
| skb = __dev_alloc_skb(MAX_RX_SIZE, GFP_KERNEL); |
| if (!skb) |
| break; |
| entry = usb_alloc_urb(0, GFP_KERNEL); |
| if (!entry) { |
| kfree_skb(skb); |
| break; |
| } |
| 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); |
| 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); |
| } |
| |
| return 0; |
| } |
| |
| static void p54u_free_urbs(struct ieee80211_hw *dev) |
| { |
| struct p54u_priv *priv = dev->priv; |
| struct p54u_rx_info *info; |
| struct sk_buff *skb; |
| |
| while ((skb = skb_dequeue(&priv->rx_queue))) { |
| info = (struct p54u_rx_info *) skb->cb; |
| if (!info->urb) |
| continue; |
| |
| usb_kill_urb(info->urb); |
| kfree_skb(skb); |
| } |
| } |
| |
| static void p54u_tx_3887(struct ieee80211_hw *dev, struct p54_control_hdr *data, |
| size_t len, int free_on_tx) |
| { |
| struct p54u_priv *priv = dev->priv; |
| struct urb *addr_urb, *data_urb; |
| |
| addr_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (!addr_urb) |
| return; |
| |
| data_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (!data_urb) { |
| usb_free_urb(addr_urb); |
| 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); |
| |
| usb_submit_urb(addr_urb, GFP_ATOMIC); |
| usb_submit_urb(data_urb, GFP_ATOMIC); |
| } |
| |
| static void p54u_tx_net2280(struct ieee80211_hw *dev, struct p54_control_hdr *data, |
| size_t len, int free_on_tx) |
| { |
| struct p54u_priv *priv = dev->priv; |
| struct urb *int_urb, *data_urb; |
| struct net2280_tx_hdr *hdr; |
| struct net2280_reg_write *reg; |
| |
| reg = kmalloc(sizeof(*reg), GFP_ATOMIC); |
| if (!reg) |
| return; |
| |
| int_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (!int_urb) { |
| kfree(reg); |
| return; |
| } |
| |
| data_urb = usb_alloc_urb(0, GFP_ATOMIC); |
| if (!data_urb) { |
| kfree(reg); |
| usb_free_urb(int_urb); |
| return; |
| } |
| |
| 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); |
| |
| 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); |
| |
| 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); |
| } |
| |
| 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_read_eeprom(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; |
| } |
| } |
| |
| 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); |
| } |
| |
| /* 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; |
| } |
| |
| 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; |
| } |
| |
| fail: |
| kfree(buf); |
| return err; |
| } |
| |
| 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; |
| 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; |
| } |
| |
| p54_parse_firmware(dev, fw_entry); |
| |
| left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size); |
| strcpy(buf, start_string); |
| left -= strlen(start_string); |
| tmp += strlen(start_string); |
| |
| data = fw_entry->data; |
| remains = fw_entry->size; |
| |
| hdr = (struct x2_header *)(buf + strlen(start_string)); |
| memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); |
| hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); |
| hdr->fw_length = cpu_to_le32(fw_entry->size); |
| hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr, |
| sizeof(u32)*2)); |
| left -= sizeof(*hdr); |
| tmp += sizeof(*hdr); |
| |
| while (remains) { |
| while (left--) { |
| if (carry) { |
| *tmp++ = carry; |
| carry = 0; |
| remains--; |
| continue; |
| } |
| switch (*data) { |
| case '~': |
| *tmp++ = '}'; |
| carry = '^'; |
| break; |
| case '}': |
| *tmp++ = '}'; |
| carry = ']'; |
| break; |
| default: |
| *tmp++ = *data; |
| remains--; |
| break; |
| } |
| data++; |
| } |
| |
| err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); |
| if (err) { |
| printk(KERN_ERR "prism54usb: firmware upload failed!\n"); |
| goto err_upload_failed; |
| } |
| |
| tmp = buf; |
| left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); |
| } |
| |
| *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, fw_entry->data, fw_entry->size)); |
| err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); |
| if (err) { |
| printk(KERN_ERR "prism54usb: firmware upload failed!\n"); |
| goto err_upload_failed; |
| } |
| |
| timeout = jiffies + msecs_to_jiffies(1000); |
| while (!(err = usb_bulk_msg(priv->udev, |
| usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { |
| if (alen > 2 && !memcmp(buf, "OK", 2)) |
| break; |
| |
| if (alen > 5 && !memcmp(buf, "ERROR", 5)) { |
| printk(KERN_INFO "prism54usb: firmware upload failed!\n"); |
| err = -EINVAL; |
| break; |
| } |
| |
| if (time_after(jiffies, timeout)) { |
| printk(KERN_ERR "prism54usb: firmware boot timed out!\n"); |
| err = -ETIMEDOUT; |
| break; |
| } |
| } |
| if (err) |
| goto err_upload_failed; |
| |
| buf[0] = 'g'; |
| buf[1] = '\r'; |
| err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2); |
| if (err) { |
| printk(KERN_ERR "prism54usb: firmware boot failed!\n"); |
| goto err_upload_failed; |
| } |
| |
| timeout = jiffies + msecs_to_jiffies(1000); |
| while (!(err = usb_bulk_msg(priv->udev, |
| usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { |
| if (alen > 0 && buf[0] == 'g') |
| break; |
| |
| if (time_after(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| break; |
| } |
| } |
| if (err) |
| goto err_upload_failed; |
| |
| err_upload_failed: |
| release_firmware(fw_entry); |
| err_req_fw_failed: |
| err_reset: |
| kfree(buf); |
| err_bufalloc: |
| return err; |
| } |
| |
| static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) |
| { |
| struct p54u_priv *priv = dev->priv; |
| const struct firmware *fw_entry = NULL; |
| const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE; |
| int err, alen; |
| void *buf; |
| __le32 reg; |
| unsigned int remains, offset; |
| u8 *data; |
| |
| buf = kmalloc(512, GFP_KERNEL); |
| if (!buf) { |
| printk(KERN_ERR "p54usb: firmware buffer alloc failed!\n"); |
| return -ENOMEM; |
| } |
| |
| err = request_firmware(&fw_entry, "isl3890usb", &priv->udev->dev); |
| if (err) { |
| printk(KERN_ERR "p54usb: cannot find firmware (isl3890usb)!\n"); |
| kfree(buf); |
| return err; |
| } |
| |
| p54_parse_firmware(dev, fw_entry); |
| |
| #define P54U_WRITE(type, addr, data) \ |
| do {\ |
| err = p54u_write(priv, buf, type,\ |
| cpu_to_le32((u32)(unsigned long)addr), data);\ |
| if (err) \ |
| goto fail;\ |
| } while (0) |
| |
| #define P54U_READ(type, addr) \ |
| do {\ |
| err = p54u_read(priv, buf, type,\ |
| cpu_to_le32((u32)(unsigned long)addr), ®);\ |
| if (err)\ |
| goto fail;\ |
| } while (0) |
| |
| /* power down net2280 bridge */ |
| P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL); |
| reg |= cpu_to_le32(P54U_BRG_POWER_DOWN); |
| reg &= cpu_to_le32(~P54U_BRG_POWER_UP); |
| P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); |
| |
| mdelay(100); |
| |
| /* power up bridge */ |
| reg |= cpu_to_le32(P54U_BRG_POWER_UP); |
| reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN); |
| P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); |
| |
| mdelay(100); |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT, |
| cpu_to_le32(NET2280_CLK_30Mhz | |
| NET2280_PCI_ENABLE | |
| NET2280_PCI_SOFT_RESET)); |
| |
| mdelay(20); |
| |
| P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND, |
| cpu_to_le32(PCI_COMMAND_MEMORY | |
| PCI_COMMAND_MASTER)); |
| |
| P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0, |
| cpu_to_le32(NET2280_BASE)); |
| |
| P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS); |
| reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT); |
| P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg); |
| |
| // TODO: we really need this? |
| P54U_READ(NET2280_BRG_U32, NET2280_RELNUM); |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP, |
| cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); |
| P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP, |
| cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); |
| |
| P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2, |
| cpu_to_le32(NET2280_BASE2)); |
| |
| /* finally done setting up the bridge */ |
| |
| P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND, |
| cpu_to_le32(PCI_COMMAND_MEMORY | |
| PCI_COMMAND_MASTER)); |
| |
| P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0); |
| P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0, |
| cpu_to_le32(P54U_DEV_BASE)); |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); |
| P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| |
| /* do romboot */ |
| P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0); |
| |
| P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| mdelay(20); |
| |
| reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| mdelay(20); |
| |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| mdelay(100); |
| |
| P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| |
| /* finally, we can upload firmware now! */ |
| remains = fw_entry->size; |
| data = fw_entry->data; |
| offset = ISL38XX_DEV_FIRMWARE_ADDR; |
| |
| while (remains) { |
| unsigned int block_len = min(remains, (unsigned int)512); |
| memcpy(buf, data, block_len); |
| |
| err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); |
| if (err) { |
| printk(KERN_ERR "prism54usb: firmware block upload " |
| "failed\n"); |
| goto fail; |
| } |
| |
| P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base, |
| cpu_to_le32(0xc0000f00)); |
| |
| P54U_WRITE(NET2280_DEV_U32, |
| 0x0020 | (unsigned long)&devreg->direct_mem_win, 0); |
| P54U_WRITE(NET2280_DEV_U32, |
| 0x0020 | (unsigned long)&devreg->direct_mem_win, |
| cpu_to_le32(1)); |
| |
| P54U_WRITE(NET2280_DEV_U32, |
| 0x0024 | (unsigned long)&devreg->direct_mem_win, |
| cpu_to_le32(block_len)); |
| P54U_WRITE(NET2280_DEV_U32, |
| 0x0028 | (unsigned long)&devreg->direct_mem_win, |
| cpu_to_le32(offset)); |
| |
| P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr, |
| cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR)); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len, |
| cpu_to_le32(block_len >> 2)); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl, |
| cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER)); |
| |
| mdelay(10); |
| |
| P54U_READ(NET2280_DEV_U32, |
| 0x002C | (unsigned long)&devreg->direct_mem_win); |
| if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) || |
| !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) { |
| printk(KERN_ERR "prism54usb: firmware DMA transfer " |
| "failed\n"); |
| goto fail; |
| } |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT, |
| cpu_to_le32(NET2280_FIFO_FLUSH)); |
| |
| remains -= block_len; |
| data += block_len; |
| offset += block_len; |
| } |
| |
| /* do ramboot */ |
| P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); |
| reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| mdelay(20); |
| |
| reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); |
| |
| mdelay(100); |
| |
| P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| |
| /* start up the firmware */ |
| P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, |
| cpu_to_le32(ISL38XX_INT_IDENT_INIT)); |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, |
| cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE | |
| NET2280_USB_INTERRUPT_ENABLE)); |
| |
| P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int, |
| cpu_to_le32(ISL38XX_DEV_INT_RESET)); |
| |
| err = usb_interrupt_msg(priv->udev, |
| usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT), |
| buf, sizeof(__le32), &alen, 1000); |
| if (err || alen != sizeof(__le32)) |
| goto fail; |
| |
| P54U_READ(NET2280_DEV_U32, &devreg->int_ident); |
| P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); |
| |
| if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))) |
| err = -EINVAL; |
| |
| P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); |
| P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, |
| cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); |
| |
| #undef P54U_WRITE |
| #undef P54U_READ |
| |
| fail: |
| release_firmware(fw_entry); |
| kfree(buf); |
| return err; |
| } |
| |
| static int p54u_open(struct ieee80211_hw *dev) |
| { |
| struct p54u_priv *priv = dev->priv; |
| int err; |
| |
| err = p54u_init_urbs(dev); |
| if (err) { |
| return err; |
| } |
| |
| priv->common.open = p54u_init_urbs; |
| |
| return 0; |
| } |
| |
| static void p54u_stop(struct ieee80211_hw *dev) |
| { |
| /* TODO: figure out how to reliably stop the 3887 and net2280 so |
| the hardware is still usable next time we want to start it. |
| until then, we just stop listening to the hardware.. */ |
| p54u_free_urbs(dev); |
| return; |
| } |
| |
| static int __devinit p54u_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct usb_device *udev = interface_to_usbdev(intf); |
| struct ieee80211_hw *dev; |
| struct p54u_priv *priv; |
| int err; |
| unsigned int i, recognized_pipes; |
| DECLARE_MAC_BUF(mac); |
| |
| dev = p54_init_common(sizeof(*priv)); |
| if (!dev) { |
| printk(KERN_ERR "prism54usb: ieee80211 alloc failed\n"); |
| return -ENOMEM; |
| } |
| |
| priv = dev->priv; |
| |
| SET_IEEE80211_DEV(dev, &intf->dev); |
| usb_set_intfdata(intf, dev); |
| priv->udev = udev; |
| |
| usb_get_dev(udev); |
| |
| /* really lazy and simple way of figuring out if we're a 3887 */ |
| /* TODO: should just stick the identification in the device table */ |
| i = intf->altsetting->desc.bNumEndpoints; |
| recognized_pipes = 0; |
| while (i--) { |
| switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) { |
| case P54U_PIPE_DATA: |
| case P54U_PIPE_MGMT: |
| case P54U_PIPE_BRG: |
| case P54U_PIPE_DEV: |
| case P54U_PIPE_DATA | USB_DIR_IN: |
| case P54U_PIPE_MGMT | USB_DIR_IN: |
| case P54U_PIPE_BRG | USB_DIR_IN: |
| case P54U_PIPE_DEV | USB_DIR_IN: |
| case P54U_PIPE_INT | USB_DIR_IN: |
| recognized_pipes++; |
| } |
| } |
| priv->common.open = p54u_open; |
| |
| if (recognized_pipes < P54U_PIPE_NUMBER) { |
| priv->hw_type = P54U_3887; |
| priv->common.tx = p54u_tx_3887; |
| } else { |
| dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr); |
| priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr); |
| priv->common.tx = p54u_tx_net2280; |
| } |
| priv->common.stop = p54u_stop; |
| |
| if (priv->hw_type) |
| err = p54u_upload_firmware_3887(dev); |
| else |
| err = p54u_upload_firmware_net2280(dev); |
| if (err) |
| goto err_free_dev; |
| |
| err = p54u_read_eeprom(dev); |
| if (err) |
| goto err_free_dev; |
| |
| if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { |
| u8 perm_addr[ETH_ALEN]; |
| |
| printk(KERN_WARNING "prism54usb: Invalid hwaddr! Using randomly generated MAC addr\n"); |
| random_ether_addr(perm_addr); |
| SET_IEEE80211_PERM_ADDR(dev, perm_addr); |
| } |
| |
| skb_queue_head_init(&priv->rx_queue); |
| |
| err = ieee80211_register_hw(dev); |
| if (err) { |
| printk(KERN_ERR "prism54usb: Cannot register netdevice\n"); |
| goto err_free_dev; |
| } |
| |
| printk(KERN_INFO "%s: hwaddr %s, isl38%02x\n", |
| wiphy_name(dev->wiphy), |
| print_mac(mac, dev->wiphy->perm_addr), |
| priv->common.version); |
| |
| return 0; |
| |
| err_free_dev: |
| ieee80211_free_hw(dev); |
| usb_set_intfdata(intf, NULL); |
| usb_put_dev(udev); |
| return err; |
| } |
| |
| static void __devexit p54u_disconnect(struct usb_interface *intf) |
| { |
| struct ieee80211_hw *dev = usb_get_intfdata(intf); |
| struct p54u_priv *priv; |
| |
| if (!dev) |
| return; |
| |
| ieee80211_unregister_hw(dev); |
| |
| priv = dev->priv; |
| usb_put_dev(interface_to_usbdev(intf)); |
| p54_free_common(dev); |
| ieee80211_free_hw(dev); |
| } |
| |
| static struct usb_driver p54u_driver = { |
| .name = "prism54usb", |
| .id_table = p54u_table, |
| .probe = p54u_probe, |
| .disconnect = p54u_disconnect, |
| }; |
| |
| static int __init p54u_init(void) |
| { |
| return usb_register(&p54u_driver); |
| } |
| |
| static void __exit p54u_exit(void) |
| { |
| usb_deregister(&p54u_driver); |
| } |
| |
| module_init(p54u_init); |
| module_exit(p54u_exit); |