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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/net/wireless/mwifiex/usb.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/net/wireless/mwifiex/usb.c')
-rw-r--r--drivers/net/wireless/mwifiex/usb.c1264
1 files changed, 0 insertions, 1264 deletions
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
deleted file mode 100644
index 9f4a4e947..000000000
--- a/drivers/net/wireless/mwifiex/usb.c
+++ /dev/null
@@ -1,1264 +0,0 @@
-/*
- * Marvell Wireless LAN device driver: USB specific handling
- *
- * Copyright (C) 2012-2014, Marvell International Ltd.
- *
- * This software file (the "File") is distributed by Marvell International
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
- * (the "License"). You may use, redistribute and/or modify this File in
- * accordance with the terms and conditions of the License, a copy of which
- * is available by writing to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
- * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
- *
- * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
- * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
- * this warranty disclaimer.
- */
-
-#include "main.h"
-#include "usb.h"
-
-#define USB_VERSION "1.0"
-
-static u8 user_rmmod;
-static struct mwifiex_if_ops usb_ops;
-static struct semaphore add_remove_card_sem;
-
-static struct usb_device_id mwifiex_usb_table[] = {
- /* 8766 */
- {USB_DEVICE(USB8XXX_VID, USB8766_PID_1)},
- {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8766_PID_2,
- USB_CLASS_VENDOR_SPEC,
- USB_SUBCLASS_VENDOR_SPEC, 0xff)},
- /* 8797 */
- {USB_DEVICE(USB8XXX_VID, USB8797_PID_1)},
- {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8797_PID_2,
- USB_CLASS_VENDOR_SPEC,
- USB_SUBCLASS_VENDOR_SPEC, 0xff)},
- /* 8801 */
- {USB_DEVICE(USB8XXX_VID, USB8801_PID_1)},
- {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8801_PID_2,
- USB_CLASS_VENDOR_SPEC,
- USB_SUBCLASS_VENDOR_SPEC, 0xff)},
- /* 8997 */
- {USB_DEVICE(USB8XXX_VID, USB8997_PID_1)},
- {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8997_PID_2,
- USB_CLASS_VENDOR_SPEC,
- USB_SUBCLASS_VENDOR_SPEC, 0xff)},
- { } /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(usb, mwifiex_usb_table);
-
-static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size);
-
-/* This function handles received packet. Necessary action is taken based on
- * cmd/event/data.
- */
-static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
- struct sk_buff *skb, u8 ep)
-{
- u32 recv_type;
- __le32 tmp;
- int ret;
-
- if (adapter->hs_activated)
- mwifiex_process_hs_config(adapter);
-
- if (skb->len < INTF_HEADER_LEN) {
- mwifiex_dbg(adapter, ERROR,
- "%s: invalid skb->len\n", __func__);
- return -1;
- }
-
- switch (ep) {
- case MWIFIEX_USB_EP_CMD_EVENT:
- mwifiex_dbg(adapter, EVENT,
- "%s: EP_CMD_EVENT\n", __func__);
- skb_copy_from_linear_data(skb, &tmp, INTF_HEADER_LEN);
- recv_type = le32_to_cpu(tmp);
- skb_pull(skb, INTF_HEADER_LEN);
-
- switch (recv_type) {
- case MWIFIEX_USB_TYPE_CMD:
- if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) {
- mwifiex_dbg(adapter, ERROR,
- "CMD: skb->len too large\n");
- ret = -1;
- goto exit_restore_skb;
- } else if (!adapter->curr_cmd) {
- mwifiex_dbg(adapter, WARN, "CMD: no curr_cmd\n");
- if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
- mwifiex_process_sleep_confirm_resp(
- adapter, skb->data,
- skb->len);
- ret = 0;
- goto exit_restore_skb;
- }
- ret = -1;
- goto exit_restore_skb;
- }
-
- adapter->curr_cmd->resp_skb = skb;
- adapter->cmd_resp_received = true;
- break;
- case MWIFIEX_USB_TYPE_EVENT:
- if (skb->len < sizeof(u32)) {
- mwifiex_dbg(adapter, ERROR,
- "EVENT: skb->len too small\n");
- ret = -1;
- goto exit_restore_skb;
- }
- skb_copy_from_linear_data(skb, &tmp, sizeof(u32));
- adapter->event_cause = le32_to_cpu(tmp);
- mwifiex_dbg(adapter, EVENT,
- "event_cause %#x\n", adapter->event_cause);
-
- if (skb->len > MAX_EVENT_SIZE) {
- mwifiex_dbg(adapter, ERROR,
- "EVENT: event body too large\n");
- ret = -1;
- goto exit_restore_skb;
- }
-
- memcpy(adapter->event_body, skb->data +
- MWIFIEX_EVENT_HEADER_LEN, skb->len);
-
- adapter->event_received = true;
- adapter->event_skb = skb;
- break;
- default:
- mwifiex_dbg(adapter, ERROR,
- "unknown recv_type %#x\n", recv_type);
- return -1;
- }
- break;
- case MWIFIEX_USB_EP_DATA:
- mwifiex_dbg(adapter, DATA, "%s: EP_DATA\n", __func__);
- if (skb->len > MWIFIEX_RX_DATA_BUF_SIZE) {
- mwifiex_dbg(adapter, ERROR,
- "DATA: skb->len too large\n");
- return -1;
- }
-
- skb_queue_tail(&adapter->rx_data_q, skb);
- adapter->data_received = true;
- atomic_inc(&adapter->rx_pending);
- break;
- default:
- mwifiex_dbg(adapter, ERROR,
- "%s: unknown endport %#x\n", __func__, ep);
- return -1;
- }
-
- return -EINPROGRESS;
-
-exit_restore_skb:
- /* The buffer will be reused for further cmds/events */
- skb_push(skb, INTF_HEADER_LEN);
-
- return ret;
-}
-
-static void mwifiex_usb_rx_complete(struct urb *urb)
-{
- struct urb_context *context = (struct urb_context *)urb->context;
- struct mwifiex_adapter *adapter = context->adapter;
- struct sk_buff *skb = context->skb;
- struct usb_card_rec *card;
- int recv_length = urb->actual_length;
- int size, status;
-
- if (!adapter || !adapter->card) {
- pr_err("mwifiex adapter or card structure is not valid\n");
- return;
- }
-
- card = (struct usb_card_rec *)adapter->card;
- if (card->rx_cmd_ep == context->ep)
- atomic_dec(&card->rx_cmd_urb_pending);
- else
- atomic_dec(&card->rx_data_urb_pending);
-
- if (recv_length) {
- if (urb->status || (adapter->surprise_removed)) {
- mwifiex_dbg(adapter, ERROR,
- "URB status is failed: %d\n", urb->status);
- /* Do not free skb in case of command ep */
- if (card->rx_cmd_ep != context->ep)
- dev_kfree_skb_any(skb);
- goto setup_for_next;
- }
- if (skb->len > recv_length)
- skb_trim(skb, recv_length);
- else
- skb_put(skb, recv_length - skb->len);
-
- status = mwifiex_usb_recv(adapter, skb, context->ep);
-
- mwifiex_dbg(adapter, INFO,
- "info: recv_length=%d, status=%d\n",
- recv_length, status);
- if (status == -EINPROGRESS) {
- mwifiex_queue_main_work(adapter);
-
- /* urb for data_ep is re-submitted now;
- * urb for cmd_ep will be re-submitted in callback
- * mwifiex_usb_recv_complete
- */
- if (card->rx_cmd_ep == context->ep)
- return;
- } else {
- if (status == -1)
- mwifiex_dbg(adapter, ERROR,
- "received data processing failed!\n");
-
- /* Do not free skb in case of command ep */
- if (card->rx_cmd_ep != context->ep)
- dev_kfree_skb_any(skb);
- }
- } else if (urb->status) {
- if (!adapter->is_suspended) {
- mwifiex_dbg(adapter, FATAL,
- "Card is removed: %d\n", urb->status);
- adapter->surprise_removed = true;
- }
- dev_kfree_skb_any(skb);
- return;
- } else {
- /* Do not free skb in case of command ep */
- if (card->rx_cmd_ep != context->ep)
- dev_kfree_skb_any(skb);
-
- /* fall through setup_for_next */
- }
-
-setup_for_next:
- if (card->rx_cmd_ep == context->ep)
- size = MWIFIEX_RX_CMD_BUF_SIZE;
- else
- size = MWIFIEX_RX_DATA_BUF_SIZE;
-
- if (card->rx_cmd_ep == context->ep) {
- mwifiex_usb_submit_rx_urb(context, size);
- } else {
- if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING){
- mwifiex_usb_submit_rx_urb(context, size);
- }else{
- context->skb = NULL;
- }
- }
-
- return;
-}
-
-static void mwifiex_usb_tx_complete(struct urb *urb)
-{
- struct urb_context *context = (struct urb_context *)(urb->context);
- struct mwifiex_adapter *adapter = context->adapter;
- struct usb_card_rec *card = adapter->card;
- struct usb_tx_data_port *port;
- int i;
-
- mwifiex_dbg(adapter, INFO,
- "%s: status: %d\n", __func__, urb->status);
-
- if (context->ep == card->tx_cmd_ep) {
- mwifiex_dbg(adapter, CMD,
- "%s: CMD\n", __func__);
- atomic_dec(&card->tx_cmd_urb_pending);
- adapter->cmd_sent = false;
- } else {
- mwifiex_dbg(adapter, DATA,
- "%s: DATA\n", __func__);
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
- port = &card->port[i];
- if (context->ep == port->tx_data_ep) {
- atomic_dec(&port->tx_data_urb_pending);
- port->block_status = false;
- break;
- }
- }
- adapter->data_sent = false;
- mwifiex_write_data_complete(adapter, context->skb, 0,
- urb->status ? -1 : 0);
- }
-
- if (card->mc_resync_flag)
- mwifiex_multi_chan_resync(adapter);
-
- mwifiex_queue_main_work(adapter);
-
- return;
-}
-
-static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size)
-{
- struct mwifiex_adapter *adapter = ctx->adapter;
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
-
- if (card->rx_cmd_ep != ctx->ep) {
- ctx->skb = dev_alloc_skb(size);
- if (!ctx->skb) {
- mwifiex_dbg(adapter, ERROR,
- "%s: dev_alloc_skb failed\n", __func__);
- return -ENOMEM;
- }
- }
-
- usb_fill_bulk_urb(ctx->urb, card->udev,
- usb_rcvbulkpipe(card->udev, ctx->ep), ctx->skb->data,
- size, mwifiex_usb_rx_complete, (void *)ctx);
-
- if (card->rx_cmd_ep == ctx->ep)
- atomic_inc(&card->rx_cmd_urb_pending);
- else
- atomic_inc(&card->rx_data_urb_pending);
-
- if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) {
- mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n");
- dev_kfree_skb_any(ctx->skb);
- ctx->skb = NULL;
-
- if (card->rx_cmd_ep == ctx->ep)
- atomic_dec(&card->rx_cmd_urb_pending);
- else
- atomic_dec(&card->rx_data_urb_pending);
-
- return -1;
- }
-
- return 0;
-}
-
-static void mwifiex_usb_free(struct usb_card_rec *card)
-{
- struct usb_tx_data_port *port;
- int i, j;
-
- if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
- usb_kill_urb(card->rx_cmd.urb);
-
- usb_free_urb(card->rx_cmd.urb);
- card->rx_cmd.urb = NULL;
-
- if (atomic_read(&card->rx_data_urb_pending))
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
- if (card->rx_data_list[i].urb)
- usb_kill_urb(card->rx_data_list[i].urb);
-
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
- usb_free_urb(card->rx_data_list[i].urb);
- card->rx_data_list[i].urb = NULL;
- }
-
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
- port = &card->port[i];
- for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
- usb_free_urb(port->tx_data_list[j].urb);
- port->tx_data_list[j].urb = NULL;
- }
- }
-
- usb_free_urb(card->tx_cmd.urb);
- card->tx_cmd.urb = NULL;
-
- return;
-}
-
-/* This function probes an mwifiex device and registers it. It allocates
- * the card structure, initiates the device registration and initialization
- * procedure by adding a logical interface.
- */
-static int mwifiex_usb_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
- struct usb_host_interface *iface_desc = intf->cur_altsetting;
- struct usb_endpoint_descriptor *epd;
- int ret, i;
- struct usb_card_rec *card;
- u16 id_vendor, id_product, bcd_device, bcd_usb;
-
- card = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
- if (!card)
- return -ENOMEM;
-
- id_vendor = le16_to_cpu(udev->descriptor.idVendor);
- id_product = le16_to_cpu(udev->descriptor.idProduct);
- bcd_device = le16_to_cpu(udev->descriptor.bcdDevice);
- bcd_usb = le16_to_cpu(udev->descriptor.bcdUSB);
- pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n",
- id_vendor, id_product, bcd_device);
-
- /* PID_1 is used for firmware downloading only */
- switch (id_product) {
- case USB8766_PID_1:
- case USB8797_PID_1:
- case USB8801_PID_1:
- case USB8997_PID_1:
- card->usb_boot_state = USB8XXX_FW_DNLD;
- break;
- case USB8766_PID_2:
- case USB8797_PID_2:
- case USB8801_PID_2:
- case USB8997_PID_2:
- card->usb_boot_state = USB8XXX_FW_READY;
- break;
- default:
- pr_warn("unknown id_product %#x\n", id_product);
- card->usb_boot_state = USB8XXX_FW_DNLD;
- break;
- }
-
- card->udev = udev;
- card->intf = intf;
-
- pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n",
- udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass,
- udev->descriptor.bDeviceSubClass,
- udev->descriptor.bDeviceProtocol);
-
- for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
- epd = &iface_desc->endpoint[i].desc;
- if (usb_endpoint_dir_in(epd) &&
- usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
- usb_endpoint_xfer_bulk(epd)) {
- pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n",
- le16_to_cpu(epd->wMaxPacketSize),
- epd->bEndpointAddress);
- card->rx_cmd_ep = usb_endpoint_num(epd);
- atomic_set(&card->rx_cmd_urb_pending, 0);
- }
- if (usb_endpoint_dir_in(epd) &&
- usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
- usb_endpoint_xfer_bulk(epd)) {
- pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n",
- le16_to_cpu(epd->wMaxPacketSize),
- epd->bEndpointAddress);
- card->rx_data_ep = usb_endpoint_num(epd);
- atomic_set(&card->rx_data_urb_pending, 0);
- }
- if (usb_endpoint_dir_out(epd) &&
- usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
- usb_endpoint_xfer_bulk(epd)) {
- pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
- le16_to_cpu(epd->wMaxPacketSize),
- epd->bEndpointAddress);
- card->port[0].tx_data_ep = usb_endpoint_num(epd);
- atomic_set(&card->port[0].tx_data_urb_pending, 0);
- }
- if (usb_endpoint_dir_out(epd) &&
- usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA_CH2 &&
- usb_endpoint_xfer_bulk(epd)) {
- pr_debug("info: bulk OUT chan2:\t"
- "max pkt size: %d, addr: %d\n",
- le16_to_cpu(epd->wMaxPacketSize),
- epd->bEndpointAddress);
- card->port[1].tx_data_ep = usb_endpoint_num(epd);
- atomic_set(&card->port[1].tx_data_urb_pending, 0);
- }
- if (usb_endpoint_dir_out(epd) &&
- usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
- usb_endpoint_xfer_bulk(epd)) {
- pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
- le16_to_cpu(epd->wMaxPacketSize),
- epd->bEndpointAddress);
- card->tx_cmd_ep = usb_endpoint_num(epd);
- atomic_set(&card->tx_cmd_urb_pending, 0);
- card->bulk_out_maxpktsize =
- le16_to_cpu(epd->wMaxPacketSize);
- }
- }
-
- usb_set_intfdata(intf, card);
-
- ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops,
- MWIFIEX_USB);
- if (ret) {
- pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret);
- usb_reset_device(udev);
- kfree(card);
- return ret;
- }
-
- usb_get_dev(udev);
-
- return 0;
-}
-
-/* Kernel needs to suspend all functions separately. Therefore all
- * registered functions must have drivers with suspend and resume
- * methods. Failing that the kernel simply removes the whole card.
- *
- * If already not suspended, this function allocates and sends a
- * 'host sleep activate' request to the firmware and turns off the traffic.
- */
-static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
-{
- struct usb_card_rec *card = usb_get_intfdata(intf);
- struct mwifiex_adapter *adapter;
- struct usb_tx_data_port *port;
- int i, j;
-
- if (!card || !card->adapter) {
- pr_err("%s: card or card->adapter is NULL\n", __func__);
- return 0;
- }
- adapter = card->adapter;
-
- if (unlikely(adapter->is_suspended))
- mwifiex_dbg(adapter, WARN,
- "Device already suspended\n");
-
- mwifiex_enable_hs(adapter);
-
- /* 'is_suspended' flag indicates device is suspended.
- * It must be set here before the usb_kill_urb() calls. Reason
- * is in the complete handlers, urb->status(= -ENOENT) and
- * this flag is used in combination to distinguish between a
- * 'suspended' state and a 'disconnect' one.
- */
- adapter->is_suspended = true;
- adapter->hs_enabling = false;
-
- if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
- usb_kill_urb(card->rx_cmd.urb);
-
- if (atomic_read(&card->rx_data_urb_pending))
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
- if (card->rx_data_list[i].urb)
- usb_kill_urb(card->rx_data_list[i].urb);
-
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
- port = &card->port[i];
- for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
- if (port->tx_data_list[j].urb)
- usb_kill_urb(port->tx_data_list[j].urb);
- }
- }
-
- if (card->tx_cmd.urb)
- usb_kill_urb(card->tx_cmd.urb);
-
- return 0;
-}
-
-/* Kernel needs to suspend all functions separately. Therefore all
- * registered functions must have drivers with suspend and resume
- * methods. Failing that the kernel simply removes the whole card.
- *
- * If already not resumed, this function turns on the traffic and
- * sends a 'host sleep cancel' request to the firmware.
- */
-static int mwifiex_usb_resume(struct usb_interface *intf)
-{
- struct usb_card_rec *card = usb_get_intfdata(intf);
- struct mwifiex_adapter *adapter;
- int i;
-
- if (!card || !card->adapter) {
- pr_err("%s: card or card->adapter is NULL\n", __func__);
- return 0;
- }
- adapter = card->adapter;
-
- if (unlikely(!adapter->is_suspended)) {
- mwifiex_dbg(adapter, WARN,
- "Device already resumed\n");
- return 0;
- }
-
- /* Indicate device resumed. The netdev queue will be resumed only
- * after the urbs have been re-submitted
- */
- adapter->is_suspended = false;
-
- if (!atomic_read(&card->rx_data_urb_pending))
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
- mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
- MWIFIEX_RX_DATA_BUF_SIZE);
-
- if (!atomic_read(&card->rx_cmd_urb_pending)) {
- card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
- if (card->rx_cmd.skb)
- mwifiex_usb_submit_rx_urb(&card->rx_cmd,
- MWIFIEX_RX_CMD_BUF_SIZE);
- }
-
- /* Disable Host Sleep */
- if (adapter->hs_activated)
- mwifiex_cancel_hs(mwifiex_get_priv(adapter,
- MWIFIEX_BSS_ROLE_ANY),
- MWIFIEX_ASYNC_CMD);
-
- return 0;
-}
-
-static void mwifiex_usb_disconnect(struct usb_interface *intf)
-{
- struct usb_card_rec *card = usb_get_intfdata(intf);
- struct mwifiex_adapter *adapter;
-
- if (!card || !card->adapter) {
- pr_err("%s: card or card->adapter is NULL\n", __func__);
- return;
- }
-
- adapter = card->adapter;
- if (!adapter->priv_num)
- return;
-
- if (user_rmmod) {
-#ifdef CONFIG_PM
- if (adapter->is_suspended)
- mwifiex_usb_resume(intf);
-#endif
-
- mwifiex_deauthenticate_all(adapter);
-
- mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
- MWIFIEX_BSS_ROLE_ANY),
- MWIFIEX_FUNC_SHUTDOWN);
- }
-
- mwifiex_usb_free(card);
-
- mwifiex_dbg(adapter, FATAL,
- "%s: removing card\n", __func__);
- mwifiex_remove_card(adapter, &add_remove_card_sem);
-
- usb_set_intfdata(intf, NULL);
- usb_put_dev(interface_to_usbdev(intf));
- kfree(card);
-
- return;
-}
-
-static struct usb_driver mwifiex_usb_driver = {
- .name = "mwifiex_usb",
- .probe = mwifiex_usb_probe,
- .disconnect = mwifiex_usb_disconnect,
- .id_table = mwifiex_usb_table,
- .suspend = mwifiex_usb_suspend,
- .resume = mwifiex_usb_resume,
- .soft_unbind = 1,
-};
-
-static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
- struct usb_tx_data_port *port;
- int i, j;
-
- card->tx_cmd.adapter = adapter;
- card->tx_cmd.ep = card->tx_cmd_ep;
-
- card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!card->tx_cmd.urb) {
- mwifiex_dbg(adapter, ERROR,
- "tx_cmd.urb allocation failed\n");
- return -ENOMEM;
- }
-
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
- port = &card->port[i];
- if (!port->tx_data_ep)
- continue;
- port->tx_data_ix = 0;
- if (port->tx_data_ep == MWIFIEX_USB_EP_DATA)
- port->block_status = false;
- else
- port->block_status = true;
- for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
- port->tx_data_list[j].adapter = adapter;
- port->tx_data_list[j].ep = port->tx_data_ep;
- port->tx_data_list[j].urb =
- usb_alloc_urb(0, GFP_KERNEL);
- if (!port->tx_data_list[j].urb) {
- mwifiex_dbg(adapter, ERROR,
- "urb allocation failed\n");
- return -ENOMEM;
- }
- }
- }
-
- return 0;
-}
-
-static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
- int i;
-
- card->rx_cmd.adapter = adapter;
- card->rx_cmd.ep = card->rx_cmd_ep;
-
- card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!card->rx_cmd.urb) {
- mwifiex_dbg(adapter, ERROR, "rx_cmd.urb allocation failed\n");
- return -ENOMEM;
- }
-
- card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
- if (!card->rx_cmd.skb)
- return -ENOMEM;
-
- if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE))
- return -1;
-
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
- card->rx_data_list[i].adapter = adapter;
- card->rx_data_list[i].ep = card->rx_data_ep;
-
- card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!card->rx_data_list[i].urb) {
- mwifiex_dbg(adapter, ERROR,
- "rx_data_list[] urb allocation failed\n");
- return -1;
- }
- if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
- MWIFIEX_RX_DATA_BUF_SIZE))
- return -1;
- }
-
- return 0;
-}
-
-static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
- u32 *len, u8 ep, u32 timeout)
-{
- struct usb_card_rec *card = adapter->card;
- int actual_length, ret;
-
- if (!(*len % card->bulk_out_maxpktsize))
- (*len)++;
-
- /* Send the data block */
- ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf,
- *len, &actual_length, timeout);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "usb_bulk_msg for tx failed: %d\n", ret);
- return ret;
- }
-
- *len = actual_length;
-
- return ret;
-}
-
-static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
- u32 *len, u8 ep, u32 timeout)
-{
- struct usb_card_rec *card = adapter->card;
- int actual_length, ret;
-
- /* Receive the data response */
- ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf,
- *len, &actual_length, timeout);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "usb_bulk_msg for rx failed: %d\n", ret);
- return ret;
- }
-
- *len = actual_length;
-
- return ret;
-}
-
-static void mwifiex_usb_port_resync(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = adapter->card;
- u8 active_port = MWIFIEX_USB_EP_DATA;
- struct mwifiex_private *priv = NULL;
- int i;
-
- if (adapter->usb_mc_status) {
- for (i = 0; i < adapter->priv_num; i++) {
- priv = adapter->priv[i];
- if (!priv)
- continue;
- if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
- !priv->bss_started) ||
- (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
- !priv->media_connected))
- priv->usb_port = MWIFIEX_USB_EP_DATA;
- }
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
- card->port[i].block_status = false;
- } else {
- for (i = 0; i < adapter->priv_num; i++) {
- priv = adapter->priv[i];
- if (!priv)
- continue;
- if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
- priv->bss_started) ||
- (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
- priv->media_connected)) {
- active_port = priv->usb_port;
- break;
- }
- }
- for (i = 0; i < adapter->priv_num; i++) {
- priv = adapter->priv[i];
- if (priv)
- priv->usb_port = active_port;
- }
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
- if (active_port == card->port[i].tx_data_ep)
- card->port[i].block_status = false;
- else
- card->port[i].block_status = true;
- }
- }
-}
-
-static bool mwifiex_usb_is_port_ready(struct mwifiex_private *priv)
-{
- struct usb_card_rec *card = priv->adapter->card;
- int idx;
-
- for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
- if (priv->usb_port == card->port[idx].tx_data_ep)
- return !card->port[idx].block_status;
- }
-
- return false;
-}
-
-static inline u8 mwifiex_usb_data_sent(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = adapter->card;
- int i;
-
- for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
- if (!card->port[i].block_status)
- return false;
-
- return true;
-}
-
-/* This function write a command/data packet to card. */
-static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep,
- struct sk_buff *skb,
- struct mwifiex_tx_param *tx_param)
-{
- struct usb_card_rec *card = adapter->card;
- struct urb_context *context = NULL;
- struct usb_tx_data_port *port = NULL;
- u8 *data = (u8 *)skb->data;
- struct urb *tx_urb;
- int idx, ret;
-
- if (adapter->is_suspended) {
- mwifiex_dbg(adapter, ERROR,
- "%s: not allowed while suspended\n", __func__);
- return -1;
- }
-
- if (adapter->surprise_removed) {
- mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__);
- return -1;
- }
-
- mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep);
-
- if (ep == card->tx_cmd_ep) {
- context = &card->tx_cmd;
- } else {
- for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
- if (ep == card->port[idx].tx_data_ep) {
- port = &card->port[idx];
- if (atomic_read(&port->tx_data_urb_pending)
- >= MWIFIEX_TX_DATA_URB) {
- port->block_status = true;
- ret = -EBUSY;
- goto done;
- }
- if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
- port->tx_data_ix = 0;
- context =
- &port->tx_data_list[port->tx_data_ix++];
- break;
- }
- }
- if (!port) {
- mwifiex_dbg(adapter, ERROR, "Wrong usb tx data port\n");
- return -1;
- }
- }
-
- context->adapter = adapter;
- context->ep = ep;
- context->skb = skb;
- tx_urb = context->urb;
-
- usb_fill_bulk_urb(tx_urb, card->udev, usb_sndbulkpipe(card->udev, ep),
- data, skb->len, mwifiex_usb_tx_complete,
- (void *)context);
-
- tx_urb->transfer_flags |= URB_ZERO_PACKET;
-
- if (ep == card->tx_cmd_ep)
- atomic_inc(&card->tx_cmd_urb_pending);
- else
- atomic_inc(&port->tx_data_urb_pending);
-
- if (usb_submit_urb(tx_urb, GFP_ATOMIC)) {
- mwifiex_dbg(adapter, ERROR,
- "%s: usb_submit_urb failed\n", __func__);
- if (ep == card->tx_cmd_ep) {
- atomic_dec(&card->tx_cmd_urb_pending);
- } else {
- atomic_dec(&port->tx_data_urb_pending);
- port->block_status = false;
- if (port->tx_data_ix)
- port->tx_data_ix--;
- else
- port->tx_data_ix = MWIFIEX_TX_DATA_URB;
- }
-
- return -1;
- } else {
- if (ep != card->tx_cmd_ep &&
- atomic_read(&port->tx_data_urb_pending) ==
- MWIFIEX_TX_DATA_URB) {
- port->block_status = true;
- ret = -ENOSR;
- goto done;
- }
- }
-
- return -EINPROGRESS;
-
-done:
- if (ep != card->tx_cmd_ep)
- adapter->data_sent = mwifiex_usb_data_sent(adapter);
-
- return ret;
-}
-
-/* This function register usb device and initialize parameter. */
-static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
-
- card->adapter = adapter;
- adapter->dev = &card->udev->dev;
-
- switch (le16_to_cpu(card->udev->descriptor.idProduct)) {
- case USB8997_PID_1:
- case USB8997_PID_2:
- adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
- strcpy(adapter->fw_name, USB8997_DEFAULT_FW_NAME);
- adapter->ext_scan = true;
- break;
- case USB8766_PID_1:
- case USB8766_PID_2:
- adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
- strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME);
- adapter->ext_scan = true;
- break;
- case USB8801_PID_1:
- case USB8801_PID_2:
- adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
- strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME);
- adapter->ext_scan = false;
- break;
- case USB8797_PID_1:
- case USB8797_PID_2:
- default:
- adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
- strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME);
- break;
- }
-
- adapter->usb_mc_status = false;
- adapter->usb_mc_setup = false;
-
- return 0;
-}
-
-static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
-
- card->adapter = NULL;
-}
-
-static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
- struct mwifiex_fw_image *fw)
-{
- int ret = 0;
- u8 *firmware = fw->fw_buf, *recv_buff;
- u32 retries = USB8XXX_FW_MAX_RETRY, dlen;
- u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0;
- struct fw_data *fwdata;
- struct fw_sync_header sync_fw;
- u8 check_winner = 1;
-
- if (!firmware) {
- mwifiex_dbg(adapter, ERROR,
- "No firmware image found! Terminating download\n");
- ret = -1;
- goto fw_exit;
- }
-
- /* Allocate memory for transmit */
- fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL);
- if (!fwdata) {
- ret = -ENOMEM;
- goto fw_exit;
- }
-
- /* Allocate memory for receive */
- recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL);
- if (!recv_buff)
- goto cleanup;
-
- do {
- /* Send pseudo data to check winner status first */
- if (check_winner) {
- memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header));
- dlen = 0;
- } else {
- /* copy the header of the fw_data to get the length */
- memcpy(&fwdata->fw_hdr, &firmware[tlen],
- sizeof(struct fw_header));
-
- dlen = le32_to_cpu(fwdata->fw_hdr.data_len);
- dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd);
- tlen += sizeof(struct fw_header);
-
- memcpy(fwdata->data, &firmware[tlen], dlen);
-
- fwdata->seq_num = cpu_to_le32(fw_seqnum);
- tlen += dlen;
- }
-
- /* If the send/receive fails or CRC occurs then retry */
- while (retries--) {
- u8 *buf = (u8 *)fwdata;
- u32 len = FW_DATA_XMIT_SIZE;
-
- /* send the firmware block */
- ret = mwifiex_write_data_sync(adapter, buf, &len,
- MWIFIEX_USB_EP_CMD_EVENT,
- MWIFIEX_USB_TIMEOUT);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "write_data_sync: failed: %d\n",
- ret);
- continue;
- }
-
- buf = recv_buff;
- len = FW_DNLD_RX_BUF_SIZE;
-
- /* Receive the firmware block response */
- ret = mwifiex_read_data_sync(adapter, buf, &len,
- MWIFIEX_USB_EP_CMD_EVENT,
- MWIFIEX_USB_TIMEOUT);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "read_data_sync: failed: %d\n",
- ret);
- continue;
- }
-
- memcpy(&sync_fw, recv_buff,
- sizeof(struct fw_sync_header));
-
- /* check 1st firmware block resp for highest bit set */
- if (check_winner) {
- if (le32_to_cpu(sync_fw.cmd) & 0x80000000) {
- mwifiex_dbg(adapter, WARN,
- "USB is not the winner %#x\n",
- sync_fw.cmd);
-
- /* returning success */
- ret = 0;
- goto cleanup;
- }
-
- mwifiex_dbg(adapter, MSG,
- "start to download FW...\n");
-
- check_winner = 0;
- break;
- }
-
- /* check the firmware block response for CRC errors */
- if (sync_fw.cmd) {
- mwifiex_dbg(adapter, ERROR,
- "FW received block with CRC %#x\n",
- sync_fw.cmd);
- ret = -1;
- continue;
- }
-
- retries = USB8XXX_FW_MAX_RETRY;
- break;
- }
- fw_seqnum++;
- } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries);
-
-cleanup:
- mwifiex_dbg(adapter, MSG,
- "info: FW download over, size %d bytes\n", tlen);
-
- kfree(recv_buff);
- kfree(fwdata);
-
- if (retries)
- ret = 0;
-fw_exit:
- return ret;
-}
-
-static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter,
- struct mwifiex_fw_image *fw)
-{
- int ret;
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
-
- if (card->usb_boot_state == USB8XXX_FW_DNLD) {
- ret = mwifiex_prog_fw_w_helper(adapter, fw);
- if (ret)
- return -1;
-
- /* Boot state changes after successful firmware download */
- if (card->usb_boot_state == USB8XXX_FW_DNLD)
- return -1;
- }
-
- ret = mwifiex_usb_rx_init(adapter);
- if (!ret)
- ret = mwifiex_usb_tx_init(adapter);
-
- return ret;
-}
-
-static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
-
- skb_push(card->rx_cmd.skb, INTF_HEADER_LEN);
- if ((ep == card->rx_cmd_ep) &&
- (!atomic_read(&card->rx_cmd_urb_pending)))
- mwifiex_usb_submit_rx_urb(&card->rx_cmd,
- MWIFIEX_RX_CMD_BUF_SIZE);
-
- return;
-}
-
-static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter,
- struct sk_buff *skb)
-{
- mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT);
-
- return 0;
-}
-
-/* This function wakes up the card. */
-static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
-{
- /* Simulation of HS_AWAKE event */
- adapter->pm_wakeup_fw_try = false;
- del_timer(&adapter->wakeup_timer);
- adapter->pm_wakeup_card_req = false;
- adapter->ps_state = PS_STATE_AWAKE;
-
- return 0;
-}
-
-static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter)
-{
- struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
- int i;
- struct urb_context *ctx;
-
- for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
- if (card->rx_data_list[i].skb)
- continue;
- ctx = &card->rx_data_list[i];
- mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE);
- }
-}
-
-/* This function is called after the card has woken up. */
-static inline int
-mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
-{
- return 0;
-}
-
-static struct mwifiex_if_ops usb_ops = {
- .register_dev = mwifiex_register_dev,
- .unregister_dev = mwifiex_unregister_dev,
- .wakeup = mwifiex_pm_wakeup_card,
- .wakeup_complete = mwifiex_pm_wakeup_card_complete,
-
- /* USB specific */
- .dnld_fw = mwifiex_usb_dnld_fw,
- .cmdrsp_complete = mwifiex_usb_cmd_event_complete,
- .event_complete = mwifiex_usb_cmd_event_complete,
- .host_to_card = mwifiex_usb_host_to_card,
- .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs,
- .multi_port_resync = mwifiex_usb_port_resync,
- .is_port_ready = mwifiex_usb_is_port_ready,
-};
-
-/* This function initializes the USB driver module.
- *
- * This initiates the semaphore and registers the device with
- * USB bus.
- */
-static int mwifiex_usb_init_module(void)
-{
- int ret;
-
- pr_debug("Marvell USB8797 Driver\n");
-
- sema_init(&add_remove_card_sem, 1);
-
- ret = usb_register(&mwifiex_usb_driver);
- if (ret)
- pr_err("Driver register failed!\n");
- else
- pr_debug("info: Driver registered successfully!\n");
-
- return ret;
-}
-
-/* This function cleans up the USB driver.
- *
- * The following major steps are followed in .disconnect for cleanup:
- * - Resume the device if its suspended
- * - Disconnect the device if connected
- * - Shutdown the firmware
- * - Unregister the device from USB bus.
- */
-static void mwifiex_usb_cleanup_module(void)
-{
- if (!down_interruptible(&add_remove_card_sem))
- up(&add_remove_card_sem);
-
- /* set the flag as user is removing this module */
- user_rmmod = 1;
-
- usb_deregister(&mwifiex_usb_driver);
-}
-
-module_init(mwifiex_usb_init_module);
-module_exit(mwifiex_usb_cleanup_module);
-
-MODULE_AUTHOR("Marvell International Ltd.");
-MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION);
-MODULE_VERSION(USB_VERSION);
-MODULE_LICENSE("GPL v2");
-/*(DEBLOBBED)*/