923 lines
22 KiB
C
923 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2008, cozybit Inc.
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* Copyright (C) 2003-2006, Marvell International Ltd.
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*/
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#define DRV_NAME "lbtf_usb"
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include "libertas_tf.h"
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#include "if_usb.h"
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <linux/netdevice.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#define INSANEDEBUG 0
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#define lbtf_deb_usb2(...) do { if (INSANEDEBUG) lbtf_deb_usbd(__VA_ARGS__); } while (0)
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#define MESSAGE_HEADER_LEN 4
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static char *lbtf_fw_name = "lbtf_usb.bin";
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module_param_named(fw_name, lbtf_fw_name, charp, 0644);
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MODULE_FIRMWARE("lbtf_usb.bin");
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static const struct usb_device_id if_usb_table[] = {
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/* Enter the device signature inside */
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{ USB_DEVICE(0x1286, 0x2001) },
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{ USB_DEVICE(0x05a3, 0x8388) },
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, if_usb_table);
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static void if_usb_receive(struct urb *urb);
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static void if_usb_receive_fwload(struct urb *urb);
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static int if_usb_prog_firmware(struct lbtf_private *priv);
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static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type,
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uint8_t *payload, uint16_t nb);
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static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
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uint16_t nb, u8 data);
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static void if_usb_free(struct if_usb_card *cardp);
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static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
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static int if_usb_reset_device(struct lbtf_private *priv);
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/**
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* if_usb_write_bulk_callback - call back to handle URB status
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*
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* @urb: pointer to urb structure
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*/
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static void if_usb_write_bulk_callback(struct urb *urb)
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{
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if (urb->status != 0) {
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/* print the failure status number for debug */
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pr_info("URB in failure status: %d\n", urb->status);
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} else {
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lbtf_deb_usb2(&urb->dev->dev, "URB status is successful\n");
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lbtf_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
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urb->actual_length);
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}
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}
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/**
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* if_usb_free - free tx/rx urb, skb and rx buffer
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*
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* @cardp: pointer if_usb_card
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*/
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static void if_usb_free(struct if_usb_card *cardp)
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{
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lbtf_deb_enter(LBTF_DEB_USB);
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/* Unlink tx & rx urb */
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usb_kill_urb(cardp->tx_urb);
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usb_kill_urb(cardp->rx_urb);
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usb_kill_urb(cardp->cmd_urb);
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usb_free_urb(cardp->tx_urb);
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cardp->tx_urb = NULL;
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usb_free_urb(cardp->rx_urb);
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cardp->rx_urb = NULL;
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usb_free_urb(cardp->cmd_urb);
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cardp->cmd_urb = NULL;
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kfree(cardp->ep_out_buf);
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cardp->ep_out_buf = NULL;
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lbtf_deb_leave(LBTF_DEB_USB);
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}
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static void if_usb_setup_firmware(struct lbtf_private *priv)
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{
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struct if_usb_card *cardp = priv->card;
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struct cmd_ds_set_boot2_ver b2_cmd;
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lbtf_deb_enter(LBTF_DEB_USB);
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if_usb_submit_rx_urb(cardp);
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b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
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b2_cmd.action = 0;
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b2_cmd.version = cardp->boot2_version;
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if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
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lbtf_deb_usb("Setting boot2 version failed\n");
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lbtf_deb_leave(LBTF_DEB_USB);
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}
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static void if_usb_fw_timeo(struct timer_list *t)
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{
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struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout);
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lbtf_deb_enter(LBTF_DEB_USB);
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if (!cardp->fwdnldover) {
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/* Download timed out */
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cardp->priv->surpriseremoved = 1;
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pr_err("Download timed out\n");
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} else {
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lbtf_deb_usb("Download complete, no event. Assuming success\n");
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}
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wake_up(&cardp->fw_wq);
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lbtf_deb_leave(LBTF_DEB_USB);
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}
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static const struct lbtf_ops if_usb_ops = {
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.hw_host_to_card = if_usb_host_to_card,
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.hw_prog_firmware = if_usb_prog_firmware,
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.hw_reset_device = if_usb_reset_device,
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};
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/**
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* if_usb_probe - sets the configuration values
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*
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* @intf: USB interface structure
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* @id: pointer to usb_device_id
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*
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* Returns: 0 on success, error code on failure
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*/
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static int if_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct usb_device *udev;
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struct usb_host_interface *iface_desc;
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struct usb_endpoint_descriptor *endpoint;
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struct lbtf_private *priv;
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struct if_usb_card *cardp;
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int i;
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lbtf_deb_enter(LBTF_DEB_USB);
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udev = interface_to_usbdev(intf);
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cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
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if (!cardp)
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goto error;
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timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0);
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init_waitqueue_head(&cardp->fw_wq);
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cardp->udev = udev;
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iface_desc = intf->cur_altsetting;
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lbtf_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
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" bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
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le16_to_cpu(udev->descriptor.bcdUSB),
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udev->descriptor.bDeviceClass,
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udev->descriptor.bDeviceSubClass,
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udev->descriptor.bDeviceProtocol);
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for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
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endpoint = &iface_desc->endpoint[i].desc;
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if (usb_endpoint_is_bulk_in(endpoint)) {
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cardp->ep_in_size =
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le16_to_cpu(endpoint->wMaxPacketSize);
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cardp->ep_in = usb_endpoint_num(endpoint);
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lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n",
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cardp->ep_in);
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lbtf_deb_usbd(&udev->dev, "Bulk in size is %d\n",
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cardp->ep_in_size);
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} else if (usb_endpoint_is_bulk_out(endpoint)) {
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cardp->ep_out_size =
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le16_to_cpu(endpoint->wMaxPacketSize);
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cardp->ep_out = usb_endpoint_num(endpoint);
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lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n",
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cardp->ep_out);
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lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n",
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cardp->ep_out_size);
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}
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}
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if (!cardp->ep_out_size || !cardp->ep_in_size) {
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lbtf_deb_usbd(&udev->dev, "Endpoints not found\n");
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/* Endpoints not found */
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goto dealloc;
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}
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cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!cardp->rx_urb)
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goto dealloc;
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cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!cardp->tx_urb)
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goto dealloc;
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cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!cardp->cmd_urb)
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goto dealloc;
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cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
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GFP_KERNEL);
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if (!cardp->ep_out_buf) {
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lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n");
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goto dealloc;
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}
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cardp->boot2_version = udev->descriptor.bcdDevice;
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priv = lbtf_add_card(cardp, &udev->dev, &if_usb_ops);
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if (!priv)
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goto dealloc;
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usb_get_dev(udev);
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usb_set_intfdata(intf, cardp);
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return 0;
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dealloc:
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if_usb_free(cardp);
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kfree(cardp);
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error:
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lbtf_deb_leave(LBTF_DEB_MAIN);
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return -ENOMEM;
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}
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/**
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* if_usb_disconnect - free resource and cleanup
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*
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* @intf: USB interface structure
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*/
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static void if_usb_disconnect(struct usb_interface *intf)
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{
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struct if_usb_card *cardp = usb_get_intfdata(intf);
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struct lbtf_private *priv = cardp->priv;
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lbtf_deb_enter(LBTF_DEB_MAIN);
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if (priv) {
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if_usb_reset_device(priv);
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lbtf_remove_card(priv);
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}
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/* Unlink and free urb */
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if_usb_free(cardp);
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kfree(cardp);
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usb_set_intfdata(intf, NULL);
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usb_put_dev(interface_to_usbdev(intf));
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lbtf_deb_leave(LBTF_DEB_MAIN);
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}
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/**
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* if_usb_send_fw_pkt - This function downloads the FW
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*
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* @cardp: pointer if_usb_card
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*
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* Returns: 0
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*/
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static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
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{
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struct fwdata *fwdata = cardp->ep_out_buf;
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u8 *firmware = (u8 *) cardp->fw->data;
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lbtf_deb_enter(LBTF_DEB_FW);
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/* If we got a CRC failure on the last block, back
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up and retry it */
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if (!cardp->CRC_OK) {
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cardp->totalbytes = cardp->fwlastblksent;
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cardp->fwseqnum--;
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}
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lbtf_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
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cardp->totalbytes);
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/* struct fwdata (which we sent to the card) has an
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extra __le32 field in between the header and the data,
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which is not in the struct fwheader in the actual
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firmware binary. Insert the seqnum in the middle... */
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memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
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sizeof(struct fwheader));
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cardp->fwlastblksent = cardp->totalbytes;
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cardp->totalbytes += sizeof(struct fwheader);
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memcpy(fwdata->data, &firmware[cardp->totalbytes],
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le32_to_cpu(fwdata->hdr.datalength));
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lbtf_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
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le32_to_cpu(fwdata->hdr.datalength));
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fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
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cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
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usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
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le32_to_cpu(fwdata->hdr.datalength), 0);
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if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
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lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
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lbtf_deb_usb2(&cardp->udev->dev,
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"seqnum = %d totalbytes = %d\n",
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cardp->fwseqnum, cardp->totalbytes);
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} else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
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lbtf_deb_usb2(&cardp->udev->dev,
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"Host has finished FW downloading\n");
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lbtf_deb_usb2(&cardp->udev->dev, "Downloading FW JUMP BLOCK\n");
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/* Host has finished FW downloading
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* Donwloading FW JUMP BLOCK
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*/
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cardp->fwfinalblk = 1;
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}
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lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
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cardp->totalbytes);
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lbtf_deb_leave(LBTF_DEB_FW);
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return 0;
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}
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static int if_usb_reset_device(struct lbtf_private *priv)
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{
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struct if_usb_card *cardp = priv->card;
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struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4;
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int ret;
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lbtf_deb_enter(LBTF_DEB_USB);
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*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
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cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET);
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cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset));
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cmd->hdr.result = cpu_to_le16(0);
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cmd->hdr.seqnum = cpu_to_le16(0x5a5a);
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cmd->action = cpu_to_le16(CMD_ACT_HALT);
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usb_tx_block(cardp, cardp->ep_out_buf,
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4 + sizeof(struct cmd_ds_802_11_reset), 0);
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msleep(100);
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ret = usb_reset_device(cardp->udev);
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msleep(100);
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lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret);
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return ret;
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}
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/**
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* usb_tx_block - transfer data to the device
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*
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* @cardp: pointer if_usb_card
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* @payload: pointer to payload data
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* @nb: data length
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* @data: non-zero for data, zero for commands
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*
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* Returns: 0 on success, nonzero otherwise.
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*/
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static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
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uint16_t nb, u8 data)
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{
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int ret = -1;
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struct urb *urb;
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lbtf_deb_enter(LBTF_DEB_USB);
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/* check if device is removed */
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if (cardp->priv->surpriseremoved) {
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lbtf_deb_usbd(&cardp->udev->dev, "Device removed\n");
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goto tx_ret;
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}
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if (data)
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urb = cardp->tx_urb;
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else
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urb = cardp->cmd_urb;
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usb_fill_bulk_urb(urb, cardp->udev,
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usb_sndbulkpipe(cardp->udev,
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cardp->ep_out),
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payload, nb, if_usb_write_bulk_callback, cardp);
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urb->transfer_flags |= URB_ZERO_PACKET;
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if (usb_submit_urb(urb, GFP_ATOMIC)) {
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lbtf_deb_usbd(&cardp->udev->dev,
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"usb_submit_urb failed: %d\n", ret);
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goto tx_ret;
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}
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lbtf_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
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ret = 0;
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tx_ret:
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lbtf_deb_leave(LBTF_DEB_USB);
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return ret;
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}
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static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
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void (*callbackfn)(struct urb *urb))
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{
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struct sk_buff *skb;
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int ret = -1;
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lbtf_deb_enter(LBTF_DEB_USB);
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skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
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if (!skb) {
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pr_err("No free skb\n");
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lbtf_deb_leave(LBTF_DEB_USB);
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return -1;
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}
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cardp->rx_skb = skb;
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|
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/* Fill the receive configuration URB and initialise the Rx call back */
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usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
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usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
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skb_tail_pointer(skb),
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MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp);
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lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n",
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cardp->rx_urb);
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ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC);
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if (ret) {
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lbtf_deb_usbd(&cardp->udev->dev,
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"Submit Rx URB failed: %d\n", ret);
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kfree_skb(skb);
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cardp->rx_skb = NULL;
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lbtf_deb_leave(LBTF_DEB_USB);
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return -1;
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} else {
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lbtf_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
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lbtf_deb_leave(LBTF_DEB_USB);
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return 0;
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}
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}
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static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
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{
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return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
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}
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static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
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{
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return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
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}
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|
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static void if_usb_receive_fwload(struct urb *urb)
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{
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struct if_usb_card *cardp = urb->context;
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struct sk_buff *skb = cardp->rx_skb;
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struct fwsyncheader *syncfwheader;
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struct bootcmdresp bcmdresp;
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|
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lbtf_deb_enter(LBTF_DEB_USB);
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if (urb->status) {
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lbtf_deb_usbd(&cardp->udev->dev,
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"URB status is failed during fw load\n");
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kfree_skb(skb);
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lbtf_deb_leave(LBTF_DEB_USB);
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return;
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}
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|
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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");
|