![David S. Miller](/assets/img/avatar_default.png)
Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
980 lines
24 KiB
C
980 lines
24 KiB
C
/**
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* This file contains functions used in USB interface module.
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*/
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#include <linux/delay.h>
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#include <linux/moduleparam.h>
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#include <linux/firmware.h>
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#include <linux/netdevice.h>
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#include <linux/usb.h>
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#ifdef CONFIG_OLPC
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#include <asm/olpc.h>
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#endif
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#define DRV_NAME "usb8xxx"
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#include "host.h"
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#include "decl.h"
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#include "defs.h"
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#include "dev.h"
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#include "cmd.h"
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#include "if_usb.h"
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#define INSANEDEBUG 0
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#define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0)
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#define MESSAGE_HEADER_LEN 4
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static char *lbs_fw_name = "usb8388.bin";
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module_param_named(fw_name, lbs_fw_name, charp, 0644);
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static 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 if_usb_card *cardp);
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static int if_usb_host_to_card(struct lbs_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);
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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 if_usb_card *cardp);
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/**
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* @brief call back function to handle the status of the URB
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* @param urb pointer to urb structure
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* @return N/A
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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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struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
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/* handle the transmission complete validations */
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if (urb->status == 0) {
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struct lbs_private *priv = cardp->priv;
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lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
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lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
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urb->actual_length);
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/* Used for both firmware TX and regular TX. priv isn't
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* valid at firmware load time.
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*/
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if (priv)
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lbs_host_to_card_done(priv);
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} else {
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/* print the failure status number for debug */
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lbs_pr_info("URB in failure status: %d\n", urb->status);
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}
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return;
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}
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/**
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* @brief free tx/rx urb, skb and rx buffer
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* @param cardp pointer if_usb_card
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* @return N/A
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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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lbs_deb_enter(LBS_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_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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kfree(cardp->ep_out_buf);
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cardp->ep_out_buf = NULL;
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lbs_deb_leave(LBS_DEB_USB);
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}
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static void if_usb_setup_firmware(struct lbs_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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struct cmd_ds_802_11_fw_wake_method wake_method;
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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 (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
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lbs_deb_usb("Setting boot2 version failed\n");
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priv->wol_gpio = 2; /* Wake via GPIO2... */
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priv->wol_gap = 20; /* ... after 20ms */
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lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA);
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wake_method.hdr.size = cpu_to_le16(sizeof(wake_method));
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wake_method.action = cpu_to_le16(CMD_ACT_GET);
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if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
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lbs_pr_info("Firmware does not seem to support PS mode\n");
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} else {
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if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
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lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
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priv->ps_supported = 1;
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} else {
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/* The versions which boot up this way don't seem to
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work even if we set it to the command interrupt */
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lbs_pr_info("Firmware doesn't wake via command interrupt; disabling PS mode\n");
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}
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}
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}
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static void if_usb_fw_timeo(unsigned long priv)
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{
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struct if_usb_card *cardp = (void *)priv;
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if (cardp->fwdnldover) {
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lbs_deb_usb("Download complete, no event. Assuming success\n");
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} else {
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lbs_pr_err("Download timed out\n");
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cardp->surprise_removed = 1;
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}
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wake_up(&cardp->fw_wq);
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}
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#ifdef CONFIG_OLPC
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static void if_usb_reset_olpc_card(struct lbs_private *priv)
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{
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printk(KERN_CRIT "Resetting OLPC wireless via EC...\n");
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olpc_ec_cmd(0x25, NULL, 0, NULL, 0);
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}
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#endif
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/**
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* @brief sets the configuration values
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* @param ifnum interface number
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* @param id pointer to usb_device_id
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* @return 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 lbs_private *priv;
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struct if_usb_card *cardp;
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int i;
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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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lbs_pr_err("Out of memory allocating private data.\n");
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goto error;
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}
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setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
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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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lbs_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 = le16_to_cpu(endpoint->wMaxPacketSize);
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cardp->ep_in = usb_endpoint_num(endpoint);
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lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in);
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lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size);
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} else if (usb_endpoint_is_bulk_out(endpoint)) {
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cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize);
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cardp->ep_out = usb_endpoint_num(endpoint);
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lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out);
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lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", 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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lbs_deb_usbd(&udev->dev, "Endpoints not found\n");
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goto dealloc;
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}
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if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
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lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n");
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goto dealloc;
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}
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if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
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lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n");
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goto dealloc;
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}
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cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL);
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if (!cardp->ep_out_buf) {
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lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n");
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goto dealloc;
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}
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/* Upload firmware */
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if (if_usb_prog_firmware(cardp)) {
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lbs_deb_usbd(&udev->dev, "FW upload failed\n");
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goto err_prog_firmware;
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}
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if (!(priv = lbs_add_card(cardp, &udev->dev)))
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goto err_prog_firmware;
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cardp->priv = priv;
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cardp->priv->fw_ready = 1;
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priv->hw_host_to_card = if_usb_host_to_card;
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#ifdef CONFIG_OLPC
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if (machine_is_olpc())
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priv->reset_card = if_usb_reset_olpc_card;
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#endif
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cardp->boot2_version = udev->descriptor.bcdDevice;
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if_usb_submit_rx_urb(cardp);
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if (lbs_start_card(priv))
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goto err_start_card;
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if_usb_setup_firmware(priv);
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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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err_start_card:
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lbs_remove_card(priv);
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err_prog_firmware:
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if_usb_reset_device(cardp);
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dealloc:
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if_usb_free(cardp);
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error:
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return -ENOMEM;
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}
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/**
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* @brief free resource and cleanup
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* @param intf USB interface structure
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* @return N/A
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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 lbs_private *priv = (struct lbs_private *) cardp->priv;
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lbs_deb_enter(LBS_DEB_MAIN);
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cardp->surprise_removed = 1;
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if (priv) {
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priv->surpriseremoved = 1;
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lbs_stop_card(priv);
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lbs_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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usb_set_intfdata(intf, NULL);
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usb_put_dev(interface_to_usbdev(intf));
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lbs_deb_leave(LBS_DEB_MAIN);
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}
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/**
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* @brief This function download FW
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* @param priv pointer to struct lbs_private
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* @return 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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const uint8_t *firmware = cardp->fw->data;
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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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lbs_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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lbs_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));
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if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
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lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
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lbs_deb_usb2(&cardp->udev->dev, "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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lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n");
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lbs_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n");
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cardp->fwfinalblk = 1;
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}
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lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
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cardp->totalbytes);
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return 0;
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}
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static int if_usb_reset_device(struct if_usb_card *cardp)
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{
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struct cmd_ds_command *cmd = cardp->ep_out_buf + 4;
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int ret;
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lbs_deb_enter(LBS_DEB_USB);
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*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
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cmd->command = cpu_to_le16(CMD_802_11_RESET);
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cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
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cmd->result = cpu_to_le16(0);
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cmd->seqnum = cpu_to_le16(0x5a5a);
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cmd->params.reset.action = cpu_to_le16(CMD_ACT_HALT);
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usb_tx_block(cardp, cardp->ep_out_buf, 4 + S_DS_GEN + sizeof(struct cmd_ds_802_11_reset));
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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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#ifdef CONFIG_OLPC
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if (ret && machine_is_olpc())
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if_usb_reset_olpc_card(NULL);
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#endif
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lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
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return ret;
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}
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/**
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* @brief This function transfer the data to the device.
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* @param priv pointer to struct lbs_private
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* @param payload pointer to payload data
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* @param nb data length
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* @return 0 or -1
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*/
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static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb)
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{
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int ret = -1;
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/* check if device is removed */
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if (cardp->surprise_removed) {
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lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
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goto tx_ret;
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}
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usb_fill_bulk_urb(cardp->tx_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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cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
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if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
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lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret);
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ret = -1;
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} else {
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lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
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ret = 0;
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}
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tx_ret:
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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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if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
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lbs_pr_err("No free skb\n");
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goto rx_ret;
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}
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cardp->rx_skb = skb;
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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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(void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
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MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
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cardp);
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cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
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lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
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if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
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lbs_deb_usbd(&cardp->udev->dev, "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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ret = -1;
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} else {
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lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
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ret = 0;
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}
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rx_ret:
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return ret;
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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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{
|
|
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)) {
|
|
lbs_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 = 1;
|
|
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)
|
|
lbs_pr_info("Firmware already seems alive; resetting\n");
|
|
cardp->bootcmdresp = -1;
|
|
} else {
|
|
lbs_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) {
|
|
lbs_pr_info("boot cmd response cmd_tag error (%d)\n",
|
|
bootcmdresp.cmd);
|
|
} else if (bootcmdresp.result != BOOT_CMD_RESP_OK) {
|
|
lbs_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 = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
|
|
if (!syncfwheader) {
|
|
lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
|
|
sizeof(struct fwsyncheader));
|
|
|
|
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);
|
|
|
|
/* 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);
|
|
|
|
return;
|
|
}
|
|
|
|
#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;
|
|
}
|
|
|
|
if (!in_interrupt())
|
|
BUG();
|
|
|
|
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");
|
|
}
|
|
|
|
/**
|
|
* @brief This function reads of the packet into the upload buff,
|
|
* wake up the main thread and initialise the Rx callack.
|
|
*
|
|
* @param urb pointer to struct urb
|
|
* @return 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);
|
|
}
|
|
|
|
/**
|
|
* @brief This function downloads data to FW
|
|
* @param priv pointer to struct lbs_private structure
|
|
* @param type type of data
|
|
* @param buf pointer to data buffer
|
|
* @param len number of bytes
|
|
* @return 0 or -1
|
|
*/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* @brief This function issues Boot command to the Boot2 code
|
|
* @param ivalue 1:Boot from FW by USB-Download
|
|
* 2:Boot from FW in EEPROM
|
|
* @return 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));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function checks the validity of Boot2/FW image.
|
|
*
|
|
* @param data pointer to image
|
|
* len image length
|
|
* @return 0 or -1
|
|
*/
|
|
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)
|
|
lbs_pr_err("firmware file format check FAIL\n");
|
|
else
|
|
lbs_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;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
if ((ret = request_firmware(&cardp->fw, lbs_fw_name,
|
|
&cardp->udev->dev)) < 0) {
|
|
lbs_pr_err("request_firmware() failed with %#x\n", ret);
|
|
lbs_pr_err("firmware %s not found\n", lbs_fw_name);
|
|
goto done;
|
|
}
|
|
|
|
if (check_fwfile_format(cardp->fw->data, cardp->fw->size))
|
|
goto release_fw;
|
|
|
|
restart:
|
|
if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
|
|
lbs_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->surprise_removed || cardp->fwdnldover);
|
|
|
|
del_timer_sync(&cardp->fw_timeout);
|
|
usb_kill_urb(cardp->rx_urb);
|
|
|
|
if (!cardp->fwdnldover) {
|
|
lbs_pr_info("failed to load fw, resetting device!\n");
|
|
if (--reset_count >= 0) {
|
|
if_usb_reset_device(cardp);
|
|
goto restart;
|
|
}
|
|
|
|
lbs_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;
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
#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)
|
|
return -1;
|
|
|
|
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,
|
|
};
|
|
|
|
static int __init if_usb_init_module(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
ret = usb_register(&if_usb_driver);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void __exit if_usb_exit_module(void)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
usb_deregister(&if_usb_driver);
|
|
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
}
|
|
|
|
module_init(if_usb_init_module);
|
|
module_exit(if_usb_exit_module);
|
|
|
|
MODULE_DESCRIPTION("8388 USB WLAN Driver");
|
|
MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc.");
|
|
MODULE_LICENSE("GPL");
|