diff options
Diffstat (limited to 'drivers/net/wireless/libertas/if_usb.c')
| -rw-r--r-- | drivers/net/wireless/libertas/if_usb.c | 1014 |
1 files changed, 0 insertions, 1014 deletions
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c deleted file mode 100644 index 23b0afda6..000000000 --- a/drivers/net/wireless/libertas/if_usb.c +++ /dev/null @@ -1,1014 +0,0 @@ -/* - * This file contains functions used in USB interface module. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/firmware.h> -#include <linux/netdevice.h> -#include <linux/slab.h> -#include <linux/usb.h> -#include <linux/olpc-ec.h> - -#ifdef CONFIG_OLPC -#include <asm/olpc.h> -#endif - -#define DRV_NAME "usb8xxx" - -#include "host.h" -#include "decl.h" -#include "defs.h" -#include "dev.h" -#include "cmd.h" -#include "if_usb.h" - -#define INSANEDEBUG 0 -#define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0) - -#define MESSAGE_HEADER_LEN 4 - -/*(DEBLOBBED)*/ - -enum { - MODEL_UNKNOWN = 0x0, - MODEL_8388 = 0x1, - MODEL_8682 = 0x2 -}; - -/* table of firmware file names */ -static const struct lbs_fw_table fw_table[] = { - { MODEL_8388, "/*(DEBLOBBED)*/", NULL }, - { MODEL_8388, "/*(DEBLOBBED)*/", NULL }, - { MODEL_8388, "/*(DEBLOBBED)*/", NULL }, - { MODEL_8388, "/*(DEBLOBBED)*/", NULL }, - { MODEL_8388, "/*(DEBLOBBED)*/", NULL }, - { MODEL_8682, "/*(DEBLOBBED)*/", NULL } -}; - -static struct usb_device_id if_usb_table[] = { - /* Enter the device signature inside */ - { USB_DEVICE(0x1286, 0x2001), .driver_info = MODEL_8388 }, - { USB_DEVICE(0x05a3, 0x8388), .driver_info = MODEL_8388 }, - {} /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(usb, if_usb_table); - -static void if_usb_receive(struct urb *urb); -static void if_usb_receive_fwload(struct urb *urb); -static void if_usb_prog_firmware(struct lbs_private *priv, int ret, - const struct firmware *fw, - const struct firmware *unused); -static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, - uint8_t *payload, uint16_t nb); -static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, - uint16_t nb); -static void if_usb_free(struct if_usb_card *cardp); -static int if_usb_submit_rx_urb(struct if_usb_card *cardp); -static int if_usb_reset_device(struct if_usb_card *cardp); - -/** - * if_usb_write_bulk_callback - callback function to handle the status - * of the URB - * @urb: pointer to &urb structure - * returns: N/A - */ -static void if_usb_write_bulk_callback(struct urb *urb) -{ - struct if_usb_card *cardp = (struct if_usb_card *) urb->context; - - /* handle the transmission complete validations */ - - if (urb->status == 0) { - struct lbs_private *priv = cardp->priv; - - lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n"); - lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n", - urb->actual_length); - - /* Boot commands such as UPDATE_FW and UPDATE_BOOT2 are not - * passed up to the lbs level. - */ - if (priv && priv->dnld_sent != DNLD_BOOTCMD_SENT) - lbs_host_to_card_done(priv); - } else { - /* print the failure status number for debug */ - pr_info("URB in failure status: %d\n", urb->status); - } -} - -/** - * if_usb_free - free tx/rx urb, skb and rx buffer - * @cardp: pointer to &if_usb_card - * returns: N/A - */ -static void if_usb_free(struct if_usb_card *cardp) -{ - lbs_deb_enter(LBS_DEB_USB); - - /* Unlink tx & rx urb */ - usb_kill_urb(cardp->tx_urb); - usb_kill_urb(cardp->rx_urb); - - usb_free_urb(cardp->tx_urb); - cardp->tx_urb = NULL; - - usb_free_urb(cardp->rx_urb); - cardp->rx_urb = NULL; - - kfree(cardp->ep_out_buf); - cardp->ep_out_buf = NULL; - - lbs_deb_leave(LBS_DEB_USB); -} - -static void if_usb_setup_firmware(struct lbs_private *priv) -{ - struct if_usb_card *cardp = priv->card; - struct cmd_ds_set_boot2_ver b2_cmd; - struct cmd_ds_802_11_fw_wake_method wake_method; - - b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd)); - b2_cmd.action = 0; - b2_cmd.version = cardp->boot2_version; - - if (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd)) - lbs_deb_usb("Setting boot2 version failed\n"); - - priv->wol_gpio = 2; /* Wake via GPIO2... */ - priv->wol_gap = 20; /* ... after 20ms */ - lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA, - (struct wol_config *) NULL); - - wake_method.hdr.size = cpu_to_le16(sizeof(wake_method)); - wake_method.action = cpu_to_le16(CMD_ACT_GET); - if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) { - netdev_info(priv->dev, "Firmware does not seem to support PS mode\n"); - priv->fwcapinfo &= ~FW_CAPINFO_PS; - } else { - if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) { - lbs_deb_usb("Firmware seems to support PS with wake-via-command\n"); - } else { - /* The versions which boot up this way don't seem to - work even if we set it to the command interrupt */ - priv->fwcapinfo &= ~FW_CAPINFO_PS; - netdev_info(priv->dev, - "Firmware doesn't wake via command interrupt; disabling PS mode\n"); - } - } -} - -static void if_usb_fw_timeo(unsigned long priv) -{ - struct if_usb_card *cardp = (void *)priv; - - if (cardp->fwdnldover) { - lbs_deb_usb("Download complete, no event. Assuming success\n"); - } else { - pr_err("Download timed out\n"); - cardp->surprise_removed = 1; - } - wake_up(&cardp->fw_wq); -} - -#ifdef CONFIG_OLPC -static void if_usb_reset_olpc_card(struct lbs_private *priv) -{ - printk(KERN_CRIT "Resetting OLPC wireless via EC...\n"); - olpc_ec_cmd(0x25, NULL, 0, NULL, 0); -} -#endif - -/** - * if_usb_probe - sets the configuration values - * @intf: &usb_interface pointer - * @id: pointer to usb_device_id - * returns: 0 on success, error code on failure - */ -static int if_usb_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *udev; - struct usb_host_interface *iface_desc; - struct usb_endpoint_descriptor *endpoint; - struct lbs_private *priv; - struct if_usb_card *cardp; - int r = -ENOMEM; - int i; - - udev = interface_to_usbdev(intf); - - cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL); - if (!cardp) - goto error; - - setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp); - init_waitqueue_head(&cardp->fw_wq); - - cardp->udev = udev; - cardp->model = (uint32_t) id->driver_info; - iface_desc = intf->cur_altsetting; - - lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" - " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", - le16_to_cpu(udev->descriptor.bcdUSB), - udev->descriptor.bDeviceClass, - udev->descriptor.bDeviceSubClass, - udev->descriptor.bDeviceProtocol); - - for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { - endpoint = &iface_desc->endpoint[i].desc; - if (usb_endpoint_is_bulk_in(endpoint)) { - cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize); - cardp->ep_in = usb_endpoint_num(endpoint); - - lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in); - lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size); - - } else if (usb_endpoint_is_bulk_out(endpoint)) { - cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize); - cardp->ep_out = usb_endpoint_num(endpoint); - - lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out); - lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size); - } - } - if (!cardp->ep_out_size || !cardp->ep_in_size) { - lbs_deb_usbd(&udev->dev, "Endpoints not found\n"); - goto dealloc; - } - if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) { - lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n"); - goto dealloc; - } - if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) { - lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n"); - goto dealloc; - } - cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL); - if (!cardp->ep_out_buf) { - lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n"); - goto dealloc; - } - - if (!(priv = lbs_add_card(cardp, &intf->dev))) - goto err_add_card; - - cardp->priv = priv; - - priv->hw_host_to_card = if_usb_host_to_card; - priv->enter_deep_sleep = NULL; - priv->exit_deep_sleep = NULL; - priv->reset_deep_sleep_wakeup = NULL; -#ifdef CONFIG_OLPC - if (machine_is_olpc()) - priv->reset_card = if_usb_reset_olpc_card; -#endif - - cardp->boot2_version = udev->descriptor.bcdDevice; - - usb_get_dev(udev); - usb_set_intfdata(intf, cardp); - - r = lbs_get_firmware_async(priv, &udev->dev, cardp->model, - fw_table, if_usb_prog_firmware); - if (r) - goto err_get_fw; - - return 0; - -err_get_fw: - lbs_remove_card(priv); -err_add_card: - if_usb_reset_device(cardp); -dealloc: - if_usb_free(cardp); - -error: - return r; -} - -/** - * if_usb_disconnect - free resource and cleanup - * @intf: USB interface structure - * returns: N/A - */ -static void if_usb_disconnect(struct usb_interface *intf) -{ - struct if_usb_card *cardp = usb_get_intfdata(intf); - struct lbs_private *priv = cardp->priv; - - lbs_deb_enter(LBS_DEB_MAIN); - - cardp->surprise_removed = 1; - - if (priv) { - lbs_stop_card(priv); - lbs_remove_card(priv); - } - - /* Unlink and free urb */ - if_usb_free(cardp); - - usb_set_intfdata(intf, NULL); - usb_put_dev(interface_to_usbdev(intf)); - - lbs_deb_leave(LBS_DEB_MAIN); -} - -/** - * if_usb_send_fw_pkt - download FW - * @cardp: pointer to &struct if_usb_card - * returns: 0 - */ -static int if_usb_send_fw_pkt(struct if_usb_card *cardp) -{ - struct fwdata *fwdata = cardp->ep_out_buf; - const uint8_t *firmware = cardp->fw->data; - - /* If we got a CRC failure on the last block, back - up and retry it */ - if (!cardp->CRC_OK) { - cardp->totalbytes = cardp->fwlastblksent; - cardp->fwseqnum--; - } - - lbs_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n", - cardp->totalbytes); - - /* struct fwdata (which we sent to the card) has an - extra __le32 field in between the header and the data, - which is not in the struct fwheader in the actual - firmware binary. Insert the seqnum in the middle... */ - memcpy(&fwdata->hdr, &firmware[cardp->totalbytes], - sizeof(struct fwheader)); - - cardp->fwlastblksent = cardp->totalbytes; - cardp->totalbytes += sizeof(struct fwheader); - - memcpy(fwdata->data, &firmware[cardp->totalbytes], - le32_to_cpu(fwdata->hdr.datalength)); - - lbs_deb_usb2(&cardp->udev->dev, "Data length = %d\n", - le32_to_cpu(fwdata->hdr.datalength)); - - fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum); - cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength); - - usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) + - le32_to_cpu(fwdata->hdr.datalength)); - - if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { - lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n"); - lbs_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n", - cardp->fwseqnum, cardp->totalbytes); - } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) { - lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n"); - lbs_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n"); - - cardp->fwfinalblk = 1; - } - - lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n", - cardp->totalbytes); - - return 0; -} - -static int if_usb_reset_device(struct if_usb_card *cardp) -{ - struct cmd_header *cmd = cardp->ep_out_buf + 4; - int ret; - - lbs_deb_enter(LBS_DEB_USB); - - *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); - - cmd->command = cpu_to_le16(CMD_802_11_RESET); - cmd->size = cpu_to_le16(sizeof(cmd)); - cmd->result = cpu_to_le16(0); - cmd->seqnum = cpu_to_le16(0x5a5a); - usb_tx_block(cardp, cardp->ep_out_buf, 4 + sizeof(struct cmd_header)); - - msleep(100); - ret = usb_reset_device(cardp->udev); - msleep(100); - -#ifdef CONFIG_OLPC - if (ret && machine_is_olpc()) - if_usb_reset_olpc_card(NULL); -#endif - - lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); - - return ret; -} - -/** - * usb_tx_block - transfer the data to the device - * @cardp: pointer to &struct if_usb_card - * @payload: pointer to payload data - * @nb: data length - * returns: 0 for success or negative error code - */ -static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb) -{ - int ret; - - /* check if device is removed */ - if (cardp->surprise_removed) { - lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); - ret = -ENODEV; - goto tx_ret; - } - - usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, - usb_sndbulkpipe(cardp->udev, - cardp->ep_out), - payload, nb, if_usb_write_bulk_callback, cardp); - - cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; - - if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { - lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret); - } else { - lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n"); - ret = 0; - } - -tx_ret: - return ret; -} - -static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, - void (*callbackfn)(struct urb *urb)) -{ - struct sk_buff *skb; - int ret = -1; - - if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { - pr_err("No free skb\n"); - goto rx_ret; - } - - cardp->rx_skb = skb; - - /* Fill the receive configuration URB and initialise the Rx call back */ - usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, - usb_rcvbulkpipe(cardp->udev, cardp->ep_in), - skb->data + IPFIELD_ALIGN_OFFSET, - MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, - cardp); - - cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; - - lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); - if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { - lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret); - kfree_skb(skb); - cardp->rx_skb = NULL; - ret = -1; - } else { - lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n"); - ret = 0; - } - -rx_ret: - return ret; -} - -static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp) -{ - return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload); -} - -static int if_usb_submit_rx_urb(struct if_usb_card *cardp) -{ - return __if_usb_submit_rx_urb(cardp, &if_usb_receive); -} - -static void if_usb_receive_fwload(struct urb *urb) -{ - struct if_usb_card *cardp = urb->context; - struct sk_buff *skb = cardp->rx_skb; - struct fwsyncheader *syncfwheader; - struct bootcmdresp bootcmdresp; - - if (urb->status) { - lbs_deb_usbd(&cardp->udev->dev, - "URB status is failed during fw load\n"); - kfree_skb(skb); - return; - } - - if (cardp->fwdnldover) { - __le32 *tmp = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET); - - if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) && - tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) { - pr_info("Firmware ready event received\n"); - wake_up(&cardp->fw_wq); - } else { - lbs_deb_usb("Waiting for confirmation; got %x %x\n", - le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1])); - if_usb_submit_rx_urb_fwload(cardp); - } - kfree_skb(skb); - return; - } - if (cardp->bootcmdresp <= 0) { - memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, - sizeof(bootcmdresp)); - - if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) { - kfree_skb(skb); - if_usb_submit_rx_urb_fwload(cardp); - cardp->bootcmdresp = BOOT_CMD_RESP_OK; - lbs_deb_usbd(&cardp->udev->dev, - "Received valid boot command response\n"); - return; - } - if (bootcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { - if (bootcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) || - bootcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) || - bootcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) { - if (!cardp->bootcmdresp) - pr_info("Firmware already seems alive; resetting\n"); - cardp->bootcmdresp = -1; - } else { - pr_info("boot cmd response wrong magic number (0x%x)\n", - le32_to_cpu(bootcmdresp.magic)); - } - } else if ((bootcmdresp.cmd != BOOT_CMD_FW_BY_USB) && - (bootcmdresp.cmd != BOOT_CMD_UPDATE_FW) && - (bootcmdresp.cmd != BOOT_CMD_UPDATE_BOOT2)) { - pr_info("boot cmd response cmd_tag error (%d)\n", - bootcmdresp.cmd); - } else if (bootcmdresp.result != BOOT_CMD_RESP_OK) { - pr_info("boot cmd response result error (%d)\n", - bootcmdresp.result); - } else { - cardp->bootcmdresp = 1; - lbs_deb_usbd(&cardp->udev->dev, - "Received valid boot command response\n"); - } - kfree_skb(skb); - if_usb_submit_rx_urb_fwload(cardp); - return; - } - - syncfwheader = kmemdup(skb->data + IPFIELD_ALIGN_OFFSET, - sizeof(struct fwsyncheader), GFP_ATOMIC); - if (!syncfwheader) { - lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); - kfree_skb(skb); - return; - } - - if (!syncfwheader->cmd) { - lbs_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n"); - lbs_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n", - le32_to_cpu(syncfwheader->seqnum)); - cardp->CRC_OK = 1; - } else { - lbs_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n"); - cardp->CRC_OK = 0; - } - - kfree_skb(skb); - - /* Give device 5s to either write firmware to its RAM or eeprom */ - mod_timer(&cardp->fw_timeout, jiffies + (HZ*5)); - - if (cardp->fwfinalblk) { - cardp->fwdnldover = 1; - goto exit; - } - - if_usb_send_fw_pkt(cardp); - - exit: - if_usb_submit_rx_urb_fwload(cardp); - - kfree(syncfwheader); -} - -#define MRVDRV_MIN_PKT_LEN 30 - -static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, - struct if_usb_card *cardp, - struct lbs_private *priv) -{ - if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN - || recvlength < MRVDRV_MIN_PKT_LEN) { - lbs_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n"); - kfree_skb(skb); - return; - } - - skb_reserve(skb, IPFIELD_ALIGN_OFFSET); - skb_put(skb, recvlength); - skb_pull(skb, MESSAGE_HEADER_LEN); - - lbs_process_rxed_packet(priv, skb); -} - -static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, - struct sk_buff *skb, - struct if_usb_card *cardp, - struct lbs_private *priv) -{ - u8 i; - - if (recvlength > LBS_CMD_BUFFER_SIZE) { - lbs_deb_usbd(&cardp->udev->dev, - "The receive buffer is too large\n"); - kfree_skb(skb); - return; - } - - BUG_ON(!in_interrupt()); - - spin_lock(&priv->driver_lock); - - i = (priv->resp_idx == 0) ? 1 : 0; - BUG_ON(priv->resp_len[i]); - priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN); - memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN, - priv->resp_len[i]); - kfree_skb(skb); - lbs_notify_command_response(priv, i); - - spin_unlock(&priv->driver_lock); - - lbs_deb_usbd(&cardp->udev->dev, - "Wake up main thread to handle cmd response\n"); -} - -/** - * if_usb_receive - read the packet into the upload buffer, - * wake up the main thread and initialise the Rx callack - * - * @urb: pointer to &struct urb - * returns: N/A - */ -static void if_usb_receive(struct urb *urb) -{ - struct if_usb_card *cardp = urb->context; - struct sk_buff *skb = cardp->rx_skb; - struct lbs_private *priv = cardp->priv; - int recvlength = urb->actual_length; - uint8_t *recvbuff = NULL; - uint32_t recvtype = 0; - __le32 *pkt = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET); - uint32_t event; - - lbs_deb_enter(LBS_DEB_USB); - - if (recvlength) { - if (urb->status) { - lbs_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n", - urb->status); - kfree_skb(skb); - goto setup_for_next; - } - - recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; - recvtype = le32_to_cpu(pkt[0]); - lbs_deb_usbd(&cardp->udev->dev, - "Recv length = 0x%x, Recv type = 0x%X\n", - recvlength, recvtype); - } else if (urb->status) { - kfree_skb(skb); - goto rx_exit; - } - - switch (recvtype) { - case CMD_TYPE_DATA: - process_cmdtypedata(recvlength, skb, cardp, priv); - break; - - case CMD_TYPE_REQUEST: - process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); - break; - - case CMD_TYPE_INDICATION: - /* Event handling */ - event = le32_to_cpu(pkt[1]); - lbs_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event); - kfree_skb(skb); - - /* Icky undocumented magic special case */ - if (event & 0xffff0000) { - u32 trycount = (event & 0xffff0000) >> 16; - - lbs_send_tx_feedback(priv, trycount); - } else - lbs_queue_event(priv, event & 0xFF); - break; - - default: - lbs_deb_usbd(&cardp->udev->dev, "Unknown command type 0x%X\n", - recvtype); - kfree_skb(skb); - break; - } - -setup_for_next: - if_usb_submit_rx_urb(cardp); -rx_exit: - lbs_deb_leave(LBS_DEB_USB); -} - -/** - * if_usb_host_to_card - downloads data to FW - * @priv: pointer to &struct lbs_private structure - * @type: type of data - * @payload: pointer to data buffer - * @nb: number of bytes - * returns: 0 for success or negative error code - */ -static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, - uint8_t *payload, uint16_t nb) -{ - struct if_usb_card *cardp = priv->card; - - lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); - lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); - - if (type == MVMS_CMD) { - *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); - priv->dnld_sent = DNLD_CMD_SENT; - } else { - *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA); - priv->dnld_sent = DNLD_DATA_SENT; - } - - memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb); - - return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN); -} - -/** - * if_usb_issue_boot_command - issues Boot command to the Boot2 code - * @cardp: pointer to &if_usb_card - * @ivalue: 1:Boot from FW by USB-Download - * 2:Boot from FW in EEPROM - * returns: 0 for success or negative error code - */ -static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue) -{ - struct bootcmd *bootcmd = cardp->ep_out_buf; - - /* Prepare command */ - bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER); - bootcmd->cmd = ivalue; - memset(bootcmd->pad, 0, sizeof(bootcmd->pad)); - - /* Issue command */ - usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd)); - - return 0; -} - - -/** - * check_fwfile_format - check the validity of Boot2/FW image - * - * @data: pointer to image - * @totlen: image length - * returns: 0 (good) or 1 (failure) - */ -static int check_fwfile_format(const uint8_t *data, uint32_t totlen) -{ - uint32_t bincmd, exit; - uint32_t blksize, offset, len; - int ret; - - ret = 1; - exit = len = 0; - - do { - struct fwheader *fwh = (void *)data; - - bincmd = le32_to_cpu(fwh->dnldcmd); - blksize = le32_to_cpu(fwh->datalength); - switch (bincmd) { - case FW_HAS_DATA_TO_RECV: - offset = sizeof(struct fwheader) + blksize; - data += offset; - len += offset; - if (len >= totlen) - exit = 1; - break; - case FW_HAS_LAST_BLOCK: - exit = 1; - ret = 0; - break; - default: - exit = 1; - break; - } - } while (!exit); - - if (ret) - pr_err("firmware file format check FAIL\n"); - else - lbs_deb_fw("firmware file format check PASS\n"); - - return ret; -} - -static void if_usb_prog_firmware(struct lbs_private *priv, int ret, - const struct firmware *fw, - const struct firmware *unused) -{ - struct if_usb_card *cardp = priv->card; - int i = 0; - static int reset_count = 10; - - lbs_deb_enter(LBS_DEB_USB); - - if (ret) { - pr_err("failed to find firmware (%d)\n", ret); - goto done; - } - - cardp->fw = fw; - if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) { - ret = -EINVAL; - goto done; - } - - /* Cancel any pending usb business */ - usb_kill_urb(cardp->rx_urb); - usb_kill_urb(cardp->tx_urb); - - cardp->fwlastblksent = 0; - cardp->fwdnldover = 0; - cardp->totalbytes = 0; - cardp->fwfinalblk = 0; - cardp->bootcmdresp = 0; - -restart: - if (if_usb_submit_rx_urb_fwload(cardp) < 0) { - lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); - ret = -EIO; - goto done; - } - - cardp->bootcmdresp = 0; - do { - int j = 0; - i++; - if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB); - /* wait for command response */ - do { - j++; - msleep_interruptible(100); - } while (cardp->bootcmdresp == 0 && j < 10); - } while (cardp->bootcmdresp == 0 && i < 5); - - if (cardp->bootcmdresp == BOOT_CMD_RESP_NOT_SUPPORTED) { - /* Return to normal operation */ - ret = -EOPNOTSUPP; - usb_kill_urb(cardp->rx_urb); - usb_kill_urb(cardp->tx_urb); - if (if_usb_submit_rx_urb(cardp) < 0) - ret = -EIO; - goto done; - } else if (cardp->bootcmdresp <= 0) { - if (--reset_count >= 0) { - if_usb_reset_device(cardp); - goto restart; - } - ret = -EIO; - goto done; - } - - i = 0; - - cardp->totalbytes = 0; - cardp->fwlastblksent = 0; - cardp->CRC_OK = 1; - cardp->fwdnldover = 0; - cardp->fwseqnum = -1; - cardp->totalbytes = 0; - cardp->fwfinalblk = 0; - - /* Send the first firmware packet... */ - if_usb_send_fw_pkt(cardp); - - /* ... and wait for the process to complete */ - wait_event_interruptible(cardp->fw_wq, cardp->surprise_removed || cardp->fwdnldover); - - del_timer_sync(&cardp->fw_timeout); - usb_kill_urb(cardp->rx_urb); - - if (!cardp->fwdnldover) { - pr_info("failed to load fw, resetting device!\n"); - if (--reset_count >= 0) { - if_usb_reset_device(cardp); - goto restart; - } - - pr_info("FW download failure, time = %d ms\n", i * 100); - ret = -EIO; - goto done; - } - - cardp->priv->fw_ready = 1; - if_usb_submit_rx_urb(cardp); - - if (lbs_start_card(priv)) - goto done; - - if_usb_setup_firmware(priv); - - /* - * EHS_REMOVE_WAKEUP is not supported on all versions of the firmware. - */ - priv->wol_criteria = EHS_REMOVE_WAKEUP; - if (lbs_host_sleep_cfg(priv, priv->wol_criteria, NULL)) - priv->ehs_remove_supported = false; - - done: - cardp->fw = NULL; - lbs_deb_leave(LBS_DEB_USB); -} - - -#ifdef CONFIG_PM -static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct if_usb_card *cardp = usb_get_intfdata(intf); - struct lbs_private *priv = cardp->priv; - int ret; - - lbs_deb_enter(LBS_DEB_USB); - - if (priv->psstate != PS_STATE_FULL_POWER) { - ret = -1; - goto out; - } - -#ifdef CONFIG_OLPC - if (machine_is_olpc()) { - if (priv->wol_criteria == EHS_REMOVE_WAKEUP) - olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN); - else - olpc_ec_wakeup_set(EC_SCI_SRC_WLAN); - } -#endif - - ret = lbs_suspend(priv); - if (ret) - goto out; - - /* Unlink tx & rx urb */ - usb_kill_urb(cardp->tx_urb); - usb_kill_urb(cardp->rx_urb); - - out: - lbs_deb_leave(LBS_DEB_USB); - return ret; -} - -static int if_usb_resume(struct usb_interface *intf) -{ - struct if_usb_card *cardp = usb_get_intfdata(intf); - struct lbs_private *priv = cardp->priv; - - lbs_deb_enter(LBS_DEB_USB); - - if_usb_submit_rx_urb(cardp); - - lbs_resume(priv); - - lbs_deb_leave(LBS_DEB_USB); - return 0; -} -#else -#define if_usb_suspend NULL -#define if_usb_resume NULL -#endif - -static struct usb_driver if_usb_driver = { - .name = DRV_NAME, - .probe = if_usb_probe, - .disconnect = if_usb_disconnect, - .id_table = if_usb_table, - .suspend = if_usb_suspend, - .resume = if_usb_resume, - .reset_resume = if_usb_resume, - .disable_hub_initiated_lpm = 1, -}; - -module_usb_driver(if_usb_driver); - -MODULE_DESCRIPTION("8388 USB WLAN Driver"); -MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc."); -MODULE_LICENSE("GPL"); |