diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/net/wireless/libertas_tf/if_usb.c | |
parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) |
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/net/wireless/libertas_tf/if_usb.c')
-rw-r--r-- | drivers/net/wireless/libertas_tf/if_usb.c | 928 |
1 files changed, 0 insertions, 928 deletions
diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c deleted file mode 100644 index f91d676ce..000000000 --- a/drivers/net/wireless/libertas_tf/if_usb.c +++ /dev/null @@ -1,928 +0,0 @@ -/* - * Copyright (C) 2008, cozybit Inc. - * Copyright (C) 2003-2006, Marvell International Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - */ -#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 = "/*(DEBLOBBED)*/"; -module_param_named(fw_name, lbtf_fw_name, charp, 0644); - -/*(DEBLOBBED)*/ - -static 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 if_usb_card *cardp); -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 if_usb_card *cardp); - -/** - * if_usb_wrike_bulk_callback - call back to handle URB status - * - * @param 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 - * - * @param 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(unsigned long priv) -{ - struct if_usb_card *cardp = (void *)priv; - - 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); -} - -/** - * if_usb_probe - sets the configuration values - * - * @ifnum interface number - * @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; - - setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp); - 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) { - lbtf_deb_usbd(&udev->dev, "Rx URB allocation failed\n"); - goto dealloc; - } - - cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!cardp->tx_urb) { - lbtf_deb_usbd(&udev->dev, "Tx URB allocation failed\n"); - goto dealloc; - } - - cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!cardp->cmd_urb) { - lbtf_deb_usbd(&udev->dev, "Cmd URB allocation failed\n"); - 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; - } - - priv = lbtf_add_card(cardp, &udev->dev); - if (!priv) - goto dealloc; - - cardp->priv = priv; - - priv->hw_host_to_card = if_usb_host_to_card; - priv->hw_prog_firmware = if_usb_prog_firmware; - priv->hw_reset_device = if_usb_reset_device; - cardp->boot2_version = udev->descriptor.bcdDevice; - - usb_get_dev(udev); - usb_set_intfdata(intf, cardp); - - return 0; - -dealloc: - if_usb_free(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_usb_reset_device(cardp); - - if (priv) - lbtf_remove_card(priv); - - /* Unlink and free urb */ - if_usb_free(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 - * - * @priv pointer to struct lbtf_private - * - * 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, "Donwloading 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 if_usb_card *cardp) -{ - 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 - * - * @priv pointer to struct lbtf_private - * @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); - - cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; - - 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) -{ - if (recvlength > LBS_CMD_BUFFER_SIZE) { - lbtf_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); - memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN, - recvlength - MESSAGE_HEADER_LEN); - kfree_skb(skb); - lbtf_cmd_response_rx(priv); - spin_unlock(&priv->driver_lock); -} - -/** - * 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 - * @buf pointer to data buffer - * @len 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. - * - * @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 if_usb_card *cardp) -{ - int i = 0; - static int reset_count = 10; - int ret = 0; - - lbtf_deb_enter(LBTF_DEB_USB); - - kernel_param_lock(THIS_MODULE); - ret = reject_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev); - if (ret < 0) { - pr_err("reject_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(cardp); - 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(cardp); - goto restart; - } - - pr_info("FW download failure, time = %d ms\n", i * 100); - ret = -1; - goto release_fw; - } - - cardp->priv->fw_ready = 1; - - 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"); |