Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Luis Carlos Cobo Rus | 2915 | 72.86% | 1 | 4.00% |
Steve deRosier | 940 | 23.49% | 1 | 4.00% |
Lubomir Rintel | 44 | 1.10% | 2 | 8.00% |
Kees Cook | 14 | 0.35% | 1 | 4.00% |
Wang Hai | 10 | 0.25% | 1 | 4.00% |
Sebastian Andrzej Siewior | 10 | 0.25% | 1 | 4.00% |
Rusty Russell | 9 | 0.22% | 1 | 4.00% |
Lee Jones | 9 | 0.22% | 1 | 4.00% |
Dan Carpenter | 8 | 0.20% | 1 | 4.00% |
Colin Ian King | 7 | 0.17% | 2 | 8.00% |
Dan Streetman | 6 | 0.15% | 1 | 4.00% |
Sage Sharp | 5 | 0.12% | 1 | 4.00% |
Ben Hutchings | 5 | 0.12% | 1 | 4.00% |
Julia Lawall | 5 | 0.12% | 1 | 4.00% |
Johannes Berg | 3 | 0.07% | 1 | 4.00% |
Greg Kroah-Hartman | 2 | 0.05% | 1 | 4.00% |
Linus Torvalds (pre-git) | 2 | 0.05% | 1 | 4.00% |
Thomas Gleixner | 2 | 0.05% | 1 | 4.00% |
Paul Gortmaker | 1 | 0.02% | 1 | 4.00% |
Yang Yingliang | 1 | 0.02% | 1 | 4.00% |
Arvind Yadav | 1 | 0.02% | 1 | 4.00% |
Linus Torvalds | 1 | 0.02% | 1 | 4.00% |
Yang Shen | 1 | 0.02% | 1 | 4.00% |
Total | 4001 | 25 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2008, cozybit Inc. * Copyright (C) 2003-2006, Marvell International Ltd. */ #define DRV_NAME "lbtf_usb" #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include "libertas_tf.h" #include "if_usb.h" #include <linux/delay.h> #include <linux/module.h> #include <linux/firmware.h> #include <linux/netdevice.h> #include <linux/slab.h> #include <linux/usb.h> #define INSANEDEBUG 0 #define lbtf_deb_usb2(...) do { if (INSANEDEBUG) lbtf_deb_usbd(__VA_ARGS__); } while (0) #define MESSAGE_HEADER_LEN 4 static char *lbtf_fw_name = "lbtf_usb.bin"; module_param_named(fw_name, lbtf_fw_name, charp, 0644); MODULE_FIRMWARE("lbtf_usb.bin"); static const struct usb_device_id if_usb_table[] = { /* Enter the device signature inside */ { USB_DEVICE(0x1286, 0x2001) }, { USB_DEVICE(0x05a3, 0x8388) }, {} /* 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 int if_usb_prog_firmware(struct lbtf_private *priv); static int if_usb_host_to_card(struct lbtf_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, u8 data); 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 lbtf_private *priv); /** * if_usb_write_bulk_callback - call back to handle URB status * * @urb: pointer to urb structure */ static void if_usb_write_bulk_callback(struct urb *urb) { if (urb->status != 0) { /* print the failure status number for debug */ pr_info("URB in failure status: %d\n", urb->status); } else { lbtf_deb_usb2(&urb->dev->dev, "URB status is successful\n"); lbtf_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n", urb->actual_length); } } /** * if_usb_free - free tx/rx urb, skb and rx buffer * * @cardp: pointer if_usb_card */ static void if_usb_free(struct if_usb_card *cardp) { lbtf_deb_enter(LBTF_DEB_USB); /* Unlink tx & rx urb */ usb_kill_urb(cardp->tx_urb); usb_kill_urb(cardp->rx_urb); usb_kill_urb(cardp->cmd_urb); usb_free_urb(cardp->tx_urb); cardp->tx_urb = NULL; usb_free_urb(cardp->rx_urb); cardp->rx_urb = NULL; usb_free_urb(cardp->cmd_urb); cardp->cmd_urb = NULL; kfree(cardp->ep_out_buf); cardp->ep_out_buf = NULL; lbtf_deb_leave(LBTF_DEB_USB); } static void if_usb_setup_firmware(struct lbtf_private *priv) { struct if_usb_card *cardp = priv->card; struct cmd_ds_set_boot2_ver b2_cmd; lbtf_deb_enter(LBTF_DEB_USB); if_usb_submit_rx_urb(cardp); b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd)); b2_cmd.action = 0; b2_cmd.version = cardp->boot2_version; if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd)) lbtf_deb_usb("Setting boot2 version failed\n"); lbtf_deb_leave(LBTF_DEB_USB); } static void if_usb_fw_timeo(struct timer_list *t) { struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout); lbtf_deb_enter(LBTF_DEB_USB); if (!cardp->fwdnldover) { /* Download timed out */ cardp->priv->surpriseremoved = 1; pr_err("Download timed out\n"); } else { lbtf_deb_usb("Download complete, no event. Assuming success\n"); } wake_up(&cardp->fw_wq); lbtf_deb_leave(LBTF_DEB_USB); } static const struct lbtf_ops if_usb_ops = { .hw_host_to_card = if_usb_host_to_card, .hw_prog_firmware = if_usb_prog_firmware, .hw_reset_device = if_usb_reset_device, }; /** * if_usb_probe - sets the configuration values * * @intf: USB interface structure * @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 lbtf_private *priv; struct if_usb_card *cardp; int i; lbtf_deb_enter(LBTF_DEB_USB); udev = interface_to_usbdev(intf); cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL); if (!cardp) goto error; timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0); init_waitqueue_head(&cardp->fw_wq); cardp->udev = udev; iface_desc = intf->cur_altsetting; lbtf_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); lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in); lbtf_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); lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out); lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size); } } if (!cardp->ep_out_size || !cardp->ep_in_size) { lbtf_deb_usbd(&udev->dev, "Endpoints not found\n"); /* Endpoints not found */ goto dealloc; } cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL); if (!cardp->rx_urb) goto dealloc; cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL); if (!cardp->tx_urb) goto dealloc; cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL); if (!cardp->cmd_urb) goto dealloc; cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL); if (!cardp->ep_out_buf) { lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n"); goto dealloc; } cardp->boot2_version = udev->descriptor.bcdDevice; priv = lbtf_add_card(cardp, &udev->dev, &if_usb_ops); if (!priv) goto dealloc; usb_get_dev(udev); usb_set_intfdata(intf, cardp); return 0; dealloc: if_usb_free(cardp); kfree(cardp); error: lbtf_deb_leave(LBTF_DEB_MAIN); return -ENOMEM; } /** * if_usb_disconnect - free resource and cleanup * * @intf: USB interface structure */ static void if_usb_disconnect(struct usb_interface *intf) { struct if_usb_card *cardp = usb_get_intfdata(intf); struct lbtf_private *priv = cardp->priv; lbtf_deb_enter(LBTF_DEB_MAIN); if (priv) { if_usb_reset_device(priv); lbtf_remove_card(priv); } /* Unlink and free urb */ if_usb_free(cardp); kfree(cardp); usb_set_intfdata(intf, NULL); usb_put_dev(interface_to_usbdev(intf)); lbtf_deb_leave(LBTF_DEB_MAIN); } /** * if_usb_send_fw_pkt - This function downloads the FW * * @cardp: pointer if_usb_card * * Returns: 0 */ static int if_usb_send_fw_pkt(struct if_usb_card *cardp) { struct fwdata *fwdata = cardp->ep_out_buf; u8 *firmware = (u8 *) cardp->fw->data; lbtf_deb_enter(LBTF_DEB_FW); /* 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--; } lbtf_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)); lbtf_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), 0); if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n"); lbtf_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)) { lbtf_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n"); lbtf_deb_usb2(&cardp->udev->dev, "Downloading FW JUMP BLOCK\n"); /* Host has finished FW downloading * Donwloading FW JUMP BLOCK */ cardp->fwfinalblk = 1; } lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n", cardp->totalbytes); lbtf_deb_leave(LBTF_DEB_FW); return 0; } static int if_usb_reset_device(struct lbtf_private *priv) { struct if_usb_card *cardp = priv->card; struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4; int ret; lbtf_deb_enter(LBTF_DEB_USB); *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET); cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset)); cmd->hdr.result = cpu_to_le16(0); cmd->hdr.seqnum = cpu_to_le16(0x5a5a); cmd->action = cpu_to_le16(CMD_ACT_HALT); usb_tx_block(cardp, cardp->ep_out_buf, 4 + sizeof(struct cmd_ds_802_11_reset), 0); msleep(100); ret = usb_reset_device(cardp->udev); msleep(100); lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); return ret; } /** * usb_tx_block - transfer data to the device * * @cardp: pointer if_usb_card * @payload: pointer to payload data * @nb: data length * @data: non-zero for data, zero for commands * * Returns: 0 on success, nonzero otherwise. */ static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb, u8 data) { int ret = -1; struct urb *urb; lbtf_deb_enter(LBTF_DEB_USB); /* check if device is removed */ if (cardp->priv->surpriseremoved) { lbtf_deb_usbd(&cardp->udev->dev, "Device removed\n"); goto tx_ret; } if (data) urb = cardp->tx_urb; else urb = cardp->cmd_urb; usb_fill_bulk_urb(urb, cardp->udev, usb_sndbulkpipe(cardp->udev, cardp->ep_out), payload, nb, if_usb_write_bulk_callback, cardp); urb->transfer_flags |= URB_ZERO_PACKET; if (usb_submit_urb(urb, GFP_ATOMIC)) { lbtf_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret); goto tx_ret; } lbtf_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n"); ret = 0; tx_ret: lbtf_deb_leave(LBTF_DEB_USB); 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; lbtf_deb_enter(LBTF_DEB_USB); skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE); if (!skb) { pr_err("No free skb\n"); lbtf_deb_leave(LBTF_DEB_USB); return -1; } 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_tail_pointer(skb), MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp); lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC); if (ret) { lbtf_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret); kfree_skb(skb); cardp->rx_skb = NULL; lbtf_deb_leave(LBTF_DEB_USB); return -1; } else { lbtf_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n"); lbtf_deb_leave(LBTF_DEB_USB); return 0; } } 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 bcmdresp; lbtf_deb_enter(LBTF_DEB_USB); if (urb->status) { lbtf_deb_usbd(&cardp->udev->dev, "URB status is failed during fw load\n"); kfree_skb(skb); lbtf_deb_leave(LBTF_DEB_USB); return; } if (cardp->fwdnldover) { __le32 *tmp = (__le32 *)(skb->data); if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) && tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) { /* Firmware ready event received */ pr_info("Firmware ready event received\n"); wake_up(&cardp->fw_wq); } else { lbtf_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); lbtf_deb_leave(LBTF_DEB_USB); return; } if (cardp->bootcmdresp <= 0) { memcpy(&bcmdresp, skb->data, sizeof(bcmdresp)); if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) { kfree_skb(skb); if_usb_submit_rx_urb_fwload(cardp); cardp->bootcmdresp = 1; /* Received valid boot command response */ lbtf_deb_usbd(&cardp->udev->dev, "Received valid boot command response\n"); lbtf_deb_leave(LBTF_DEB_USB); return; } if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) || bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) || bcmdresp.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(bcmdresp.magic)); } } else if (bcmdresp.cmd != BOOT_CMD_FW_BY_USB) { pr_info("boot cmd response cmd_tag error (%d)\n", bcmdresp.cmd); } else if (bcmdresp.result != BOOT_CMD_RESP_OK) { pr_info("boot cmd response result error (%d)\n", bcmdresp.result); } else { cardp->bootcmdresp = 1; lbtf_deb_usbd(&cardp->udev->dev, "Received valid boot command response\n"); } kfree_skb(skb); if_usb_submit_rx_urb_fwload(cardp); lbtf_deb_leave(LBTF_DEB_USB); return; } syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader), GFP_ATOMIC); if (!syncfwheader) { lbtf_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); kfree_skb(skb); lbtf_deb_leave(LBTF_DEB_USB); return; } if (!syncfwheader->cmd) { lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n"); lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n", le32_to_cpu(syncfwheader->seqnum)); cardp->CRC_OK = 1; } else { lbtf_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n"); cardp->CRC_OK = 0; } kfree_skb(skb); /* reschedule timer for 200ms hence */ 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); lbtf_deb_leave(LBTF_DEB_USB); } #define MRVDRV_MIN_PKT_LEN 30 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, struct if_usb_card *cardp, struct lbtf_private *priv) { if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { lbtf_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n"); kfree_skb(skb); return; } skb_put(skb, recvlength); skb_pull(skb, MESSAGE_HEADER_LEN); lbtf_rx(priv, skb); } static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, struct sk_buff *skb, struct if_usb_card *cardp, struct lbtf_private *priv) { unsigned long flags; if (recvlength < MESSAGE_HEADER_LEN || recvlength > LBS_CMD_BUFFER_SIZE) { lbtf_deb_usbd(&cardp->udev->dev, "The receive buffer is invalid: %d\n", recvlength); kfree_skb(skb); return; } spin_lock_irqsave(&priv->driver_lock, flags); memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN, recvlength - MESSAGE_HEADER_LEN); dev_kfree_skb_irq(skb); lbtf_cmd_response_rx(priv); spin_unlock_irqrestore(&priv->driver_lock, flags); } /** * if_usb_receive - read data received from the device. * * @urb: pointer to struct urb */ static void if_usb_receive(struct urb *urb) { struct if_usb_card *cardp = urb->context; struct sk_buff *skb = cardp->rx_skb; struct lbtf_private *priv = cardp->priv; int recvlength = urb->actual_length; uint8_t *recvbuff = NULL; uint32_t recvtype = 0; __le32 *pkt = (__le32 *) skb->data; lbtf_deb_enter(LBTF_DEB_USB); if (recvlength) { if (urb->status) { lbtf_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n", urb->status); kfree_skb(skb); goto setup_for_next; } recvbuff = skb->data; recvtype = le32_to_cpu(pkt[0]); lbtf_deb_usbd(&cardp->udev->dev, "Recv length = 0x%x, Recv type = 0x%X\n", recvlength, recvtype); } else if (urb->status) { kfree_skb(skb); lbtf_deb_leave(LBTF_DEB_USB); return; } 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 cause handling */ u32 event_cause = le32_to_cpu(pkt[1]); lbtf_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event_cause); /* Icky undocumented magic special case */ if (event_cause & 0xffff0000) { u16 tmp; u8 retrycnt; u8 failure; tmp = event_cause >> 16; retrycnt = tmp & 0x00ff; failure = (tmp & 0xff00) >> 8; lbtf_send_tx_feedback(priv, retrycnt, failure); } else if (event_cause == LBTF_EVENT_BCN_SENT) lbtf_bcn_sent(priv); else lbtf_deb_usbd(&cardp->udev->dev, "Unsupported notification %d received\n", event_cause); kfree_skb(skb); break; } default: lbtf_deb_usbd(&cardp->udev->dev, "libertastf: unknown command type 0x%X\n", recvtype); kfree_skb(skb); break; } setup_for_next: if_usb_submit_rx_urb(cardp); lbtf_deb_leave(LBTF_DEB_USB); } /** * if_usb_host_to_card - Download data to the device * * @priv: pointer to struct lbtf_private structure * @type: type of data * @payload: pointer to payload buffer * @nb: number of bytes * * Returns: 0 on success, nonzero otherwise */ static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type, uint8_t *payload, uint16_t nb) { struct if_usb_card *cardp = priv->card; u8 data = 0; lbtf_deb_usbd(&cardp->udev->dev, "*** type = %u\n", type); lbtf_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); } else { *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA); data = 1; } memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb); return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN, data); } /** * if_usb_issue_boot_command - Issue boot command to Boot2. * * @cardp: pointer if_usb_card * @ivalue: 1 boots from FW by USB-Download, 2 boots from FW in EEPROM. * * Returns: 0 */ 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), 0); return 0; } /** * check_fwfile_format - Check the validity of Boot2/FW image. * * @data: pointer to image * @totlen: image length * * Returns: 0 if the image is valid, nonzero otherwise. */ static int check_fwfile_format(const u8 *data, u32 totlen) { u32 bincmd, exit; u32 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 lbtf_deb_fw("firmware file format check PASS\n"); return ret; } static int if_usb_prog_firmware(struct lbtf_private *priv) { struct if_usb_card *cardp = priv->card; int i = 0; static int reset_count = 10; int ret = 0; lbtf_deb_enter(LBTF_DEB_USB); cardp->priv = priv; kernel_param_lock(THIS_MODULE); ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev); if (ret < 0) { pr_err("request_firmware() failed with %#x\n", ret); pr_err("firmware %s not found\n", lbtf_fw_name); kernel_param_unlock(THIS_MODULE); goto done; } kernel_param_unlock(THIS_MODULE); if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) goto release_fw; restart: if (if_usb_submit_rx_urb_fwload(cardp) < 0) { lbtf_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); ret = -1; goto release_fw; } cardp->bootcmdresp = 0; do { int j = 0; i++; /* Issue Boot command = 1, Boot from Download-FW */ 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 <= 0) { if (--reset_count >= 0) { if_usb_reset_device(priv); goto restart; } return -1; } 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->priv->surpriseremoved || 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(priv); goto restart; } pr_info("FW download failure, time = %d ms\n", i * 100); ret = -1; goto release_fw; } release_fw: release_firmware(cardp->fw); cardp->fw = NULL; if_usb_setup_firmware(cardp->priv); done: lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); return ret; } #define if_usb_suspend NULL #define if_usb_resume NULL 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, .disable_hub_initiated_lpm = 1, }; module_usb_driver(if_usb_driver); MODULE_DESCRIPTION("8388 USB WLAN Thinfirm Driver"); MODULE_AUTHOR("Cozybit Inc."); MODULE_LICENSE("GPL");
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