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path: root/drivers/staging/wimax/i2400m/usb.c
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Diffstat (limited to 'drivers/staging/wimax/i2400m/usb.c')
-rw-r--r--drivers/staging/wimax/i2400m/usb.c765
1 files changed, 0 insertions, 765 deletions
diff --git a/drivers/staging/wimax/i2400m/usb.c b/drivers/staging/wimax/i2400m/usb.c
deleted file mode 100644
index 481b1ccde983..000000000000
--- a/drivers/staging/wimax/i2400m/usb.c
+++ /dev/null
@@ -1,765 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel Wireless WiMAX Connection 2400m
- * Linux driver model glue for USB device, reset & fw upload
- *
- * Copyright (C) 2007-2008 Intel Corporation <linux-wimax@intel.com>
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- * Yanir Lubetkin <yanirx.lubetkin@intel.com>
- *
- * See i2400m-usb.h for a general description of this driver.
- *
- * This file implements driver model glue, and hook ups for the
- * generic driver to implement the bus-specific functions (device
- * communication setup/tear down, firmware upload and resetting).
- *
- * ROADMAP
- *
- * i2400mu_probe()
- * alloc_netdev()...
- * i2400mu_netdev_setup()
- * i2400mu_init()
- * i2400m_netdev_setup()
- * i2400m_setup()...
- *
- * i2400mu_disconnect
- * i2400m_release()
- * free_netdev()
- *
- * i2400mu_suspend()
- * i2400m_cmd_enter_powersave()
- * i2400mu_notification_release()
- *
- * i2400mu_resume()
- * i2400mu_notification_setup()
- *
- * i2400mu_bus_dev_start() Called by i2400m_dev_start() [who is
- * i2400mu_tx_setup() called by i2400m_setup()]
- * i2400mu_rx_setup()
- * i2400mu_notification_setup()
- *
- * i2400mu_bus_dev_stop() Called by i2400m_dev_stop() [who is
- * i2400mu_notification_release() called by i2400m_release()]
- * i2400mu_rx_release()
- * i2400mu_tx_release()
- *
- * i2400mu_bus_reset() Called by i2400m_reset
- * __i2400mu_reset()
- * __i2400mu_send_barker()
- * usb_reset_device()
- */
-#include "i2400m-usb.h"
-#include "linux-wimax-i2400m.h"
-#include <linux/debugfs.h>
-#include <linux/ethtool.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-
-#define D_SUBMODULE usb
-#include "usb-debug-levels.h"
-
-static char i2400mu_debug_params[128];
-module_param_string(debug, i2400mu_debug_params, sizeof(i2400mu_debug_params),
- 0644);
-MODULE_PARM_DESC(debug,
- "String of space-separated NAME:VALUE pairs, where NAMEs "
- "are the different debug submodules and VALUE are the "
- "initial debug value to set.");
-
-/* Our firmware file name */
-static const char *i2400mu_bus_fw_names_5x50[] = {
-#define I2400MU_FW_FILE_NAME_v1_5 "i2400m-fw-usb-1.5.sbcf"
- I2400MU_FW_FILE_NAME_v1_5,
-#define I2400MU_FW_FILE_NAME_v1_4 "i2400m-fw-usb-1.4.sbcf"
- I2400MU_FW_FILE_NAME_v1_4,
- NULL,
-};
-
-
-static const char *i2400mu_bus_fw_names_6050[] = {
-#define I6050U_FW_FILE_NAME_v1_5 "i6050-fw-usb-1.5.sbcf"
- I6050U_FW_FILE_NAME_v1_5,
- NULL,
-};
-
-
-static
-int i2400mu_bus_dev_start(struct i2400m *i2400m)
-{
- int result;
- struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m);
- struct device *dev = &i2400mu->usb_iface->dev;
-
- d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
- result = i2400mu_tx_setup(i2400mu);
- if (result < 0)
- goto error_usb_tx_setup;
- result = i2400mu_rx_setup(i2400mu);
- if (result < 0)
- goto error_usb_rx_setup;
- result = i2400mu_notification_setup(i2400mu);
- if (result < 0)
- goto error_notif_setup;
- d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result);
- return result;
-
-error_notif_setup:
- i2400mu_rx_release(i2400mu);
-error_usb_rx_setup:
- i2400mu_tx_release(i2400mu);
-error_usb_tx_setup:
- d_fnend(3, dev, "(i2400m %p) = void\n", i2400m);
- return result;
-}
-
-
-static
-void i2400mu_bus_dev_stop(struct i2400m *i2400m)
-{
- struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m);
- struct device *dev = &i2400mu->usb_iface->dev;
-
- d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
- i2400mu_notification_release(i2400mu);
- i2400mu_rx_release(i2400mu);
- i2400mu_tx_release(i2400mu);
- d_fnend(3, dev, "(i2400m %p) = void\n", i2400m);
-}
-
-
-/*
- * Sends a barker buffer to the device
- *
- * This helper will allocate a kmalloced buffer and use it to transmit
- * (then free it). Reason for this is that other arches cannot use
- * stack/vmalloc/text areas for DMA transfers.
- *
- * Error recovery here is simpler: anything is considered a hard error
- * and will move the reset code to use a last-resort bus-based reset.
- */
-static
-int __i2400mu_send_barker(struct i2400mu *i2400mu,
- const __le32 *barker,
- size_t barker_size,
- unsigned endpoint)
-{
- struct usb_endpoint_descriptor *epd = NULL;
- int pipe, actual_len, ret;
- struct device *dev = &i2400mu->usb_iface->dev;
- void *buffer;
- int do_autopm = 1;
-
- ret = usb_autopm_get_interface(i2400mu->usb_iface);
- if (ret < 0) {
- dev_err(dev, "RESET: can't get autopm: %d\n", ret);
- do_autopm = 0;
- }
- ret = -ENOMEM;
- buffer = kmalloc(barker_size, GFP_KERNEL);
- if (buffer == NULL)
- goto error_kzalloc;
- epd = usb_get_epd(i2400mu->usb_iface, endpoint);
- pipe = usb_sndbulkpipe(i2400mu->usb_dev, epd->bEndpointAddress);
- memcpy(buffer, barker, barker_size);
-retry:
- ret = usb_bulk_msg(i2400mu->usb_dev, pipe, buffer, barker_size,
- &actual_len, 200);
- switch (ret) {
- case 0:
- if (actual_len != barker_size) { /* Too short? drop it */
- dev_err(dev, "E: %s: short write (%d B vs %zu "
- "expected)\n",
- __func__, actual_len, barker_size);
- ret = -EIO;
- }
- break;
- case -EPIPE:
- /*
- * Stall -- maybe the device is choking with our
- * requests. Clear it and give it some time. If they
- * happen to often, it might be another symptom, so we
- * reset.
- *
- * No error handling for usb_clear_halt(0; if it
- * works, the retry works; if it fails, this switch
- * does the error handling for us.
- */
- if (edc_inc(&i2400mu->urb_edc,
- 10 * EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) {
- dev_err(dev, "E: %s: too many stalls in "
- "URB; resetting device\n", __func__);
- usb_queue_reset_device(i2400mu->usb_iface);
- /* fallthrough */
- } else {
- usb_clear_halt(i2400mu->usb_dev, pipe);
- msleep(10); /* give the device some time */
- goto retry;
- }
- fallthrough;
- case -EINVAL: /* while removing driver */
- case -ENODEV: /* dev disconnect ... */
- case -ENOENT: /* just ignore it */
- case -ESHUTDOWN: /* and exit */
- case -ECONNRESET:
- ret = -ESHUTDOWN;
- break;
- default: /* Some error? */
- if (edc_inc(&i2400mu->urb_edc,
- EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) {
- dev_err(dev, "E: %s: maximum errors in URB "
- "exceeded; resetting device\n",
- __func__);
- usb_queue_reset_device(i2400mu->usb_iface);
- } else {
- dev_warn(dev, "W: %s: cannot send URB: %d\n",
- __func__, ret);
- goto retry;
- }
- }
- kfree(buffer);
-error_kzalloc:
- if (do_autopm)
- usb_autopm_put_interface(i2400mu->usb_iface);
- return ret;
-}
-
-
-/*
- * Reset a device at different levels (warm, cold or bus)
- *
- * @i2400m: device descriptor
- * @reset_type: soft, warm or bus reset (I2400M_RT_WARM/SOFT/BUS)
- *
- * Warm and cold resets get a USB reset if they fail.
- *
- * Warm reset:
- *
- * The device will be fully reset internally, but won't be
- * disconnected from the USB bus (so no reenumeration will
- * happen). Firmware upload will be necessary.
- *
- * The device will send a reboot barker in the notification endpoint
- * that will trigger the driver to reinitialize the state
- * automatically from notif.c:i2400m_notification_grok() into
- * i2400m_dev_bootstrap_delayed().
- *
- * Cold and bus (USB) reset:
- *
- * The device will be fully reset internally, disconnected from the
- * USB bus an a reenumeration will happen. Firmware upload will be
- * necessary. Thus, we don't do any locking or struct
- * reinitialization, as we are going to be fully disconnected and
- * reenumerated.
- *
- * Note we need to return -ENODEV if a warm reset was requested and we
- * had to resort to a bus reset. See i2400m_op_reset(), wimax_reset()
- * and wimax_dev->op_reset.
- *
- * WARNING: no driver state saved/fixed
- */
-static
-int i2400mu_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt)
-{
- int result;
- struct i2400mu *i2400mu =
- container_of(i2400m, struct i2400mu, i2400m);
- struct device *dev = i2400m_dev(i2400m);
- static const __le32 i2400m_WARM_BOOT_BARKER[4] = {
- cpu_to_le32(I2400M_WARM_RESET_BARKER),
- cpu_to_le32(I2400M_WARM_RESET_BARKER),
- cpu_to_le32(I2400M_WARM_RESET_BARKER),
- cpu_to_le32(I2400M_WARM_RESET_BARKER),
- };
- static const __le32 i2400m_COLD_BOOT_BARKER[4] = {
- cpu_to_le32(I2400M_COLD_RESET_BARKER),
- cpu_to_le32(I2400M_COLD_RESET_BARKER),
- cpu_to_le32(I2400M_COLD_RESET_BARKER),
- cpu_to_le32(I2400M_COLD_RESET_BARKER),
- };
-
- d_fnstart(3, dev, "(i2400m %p rt %u)\n", i2400m, rt);
- if (rt == I2400M_RT_WARM)
- result = __i2400mu_send_barker(
- i2400mu, i2400m_WARM_BOOT_BARKER,
- sizeof(i2400m_WARM_BOOT_BARKER),
- i2400mu->endpoint_cfg.bulk_out);
- else if (rt == I2400M_RT_COLD)
- result = __i2400mu_send_barker(
- i2400mu, i2400m_COLD_BOOT_BARKER,
- sizeof(i2400m_COLD_BOOT_BARKER),
- i2400mu->endpoint_cfg.reset_cold);
- else if (rt == I2400M_RT_BUS) {
- result = usb_reset_device(i2400mu->usb_dev);
- switch (result) {
- case 0:
- case -EINVAL: /* device is gone */
- case -ENODEV:
- case -ENOENT:
- case -ESHUTDOWN:
- result = 0;
- break; /* We assume the device is disconnected */
- default:
- dev_err(dev, "USB reset failed (%d), giving up!\n",
- result);
- }
- } else {
- result = -EINVAL; /* shut gcc up in certain arches */
- BUG();
- }
- if (result < 0
- && result != -EINVAL /* device is gone */
- && rt != I2400M_RT_BUS) {
- /*
- * Things failed -- resort to lower level reset, that
- * we queue in another context; the reason for this is
- * that the pre and post reset functionality requires
- * the i2400m->init_mutex; RT_WARM and RT_COLD can
- * come from areas where i2400m->init_mutex is taken.
- */
- dev_err(dev, "%s reset failed (%d); trying USB reset\n",
- rt == I2400M_RT_WARM ? "warm" : "cold", result);
- usb_queue_reset_device(i2400mu->usb_iface);
- result = -ENODEV;
- }
- d_fnend(3, dev, "(i2400m %p rt %u) = %d\n", i2400m, rt, result);
- return result;
-}
-
-static void i2400mu_get_drvinfo(struct net_device *net_dev,
- struct ethtool_drvinfo *info)
-{
- struct i2400m *i2400m = net_dev_to_i2400m(net_dev);
- struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m);
- struct usb_device *udev = i2400mu->usb_dev;
-
- strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
- strscpy(info->fw_version, i2400m->fw_name ? : "",
- sizeof(info->fw_version));
- usb_make_path(udev, info->bus_info, sizeof(info->bus_info));
-}
-
-static const struct ethtool_ops i2400mu_ethtool_ops = {
- .get_drvinfo = i2400mu_get_drvinfo,
- .get_link = ethtool_op_get_link,
-};
-
-static
-void i2400mu_netdev_setup(struct net_device *net_dev)
-{
- struct i2400m *i2400m = net_dev_to_i2400m(net_dev);
- struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m);
- i2400mu_init(i2400mu);
- i2400m_netdev_setup(net_dev);
- net_dev->ethtool_ops = &i2400mu_ethtool_ops;
-}
-
-
-/*
- * Debug levels control; see debug.h
- */
-struct d_level D_LEVEL[] = {
- D_SUBMODULE_DEFINE(usb),
- D_SUBMODULE_DEFINE(fw),
- D_SUBMODULE_DEFINE(notif),
- D_SUBMODULE_DEFINE(rx),
- D_SUBMODULE_DEFINE(tx),
-};
-size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
-
-static
-void i2400mu_debugfs_add(struct i2400mu *i2400mu)
-{
- struct dentry *dentry = i2400mu->i2400m.wimax_dev.debugfs_dentry;
-
- dentry = debugfs_create_dir("i2400m-usb", dentry);
- i2400mu->debugfs_dentry = dentry;
-
- d_level_register_debugfs("dl_", usb, dentry);
- d_level_register_debugfs("dl_", fw, dentry);
- d_level_register_debugfs("dl_", notif, dentry);
- d_level_register_debugfs("dl_", rx, dentry);
- d_level_register_debugfs("dl_", tx, dentry);
-
- /* Don't touch these if you don't know what you are doing */
- debugfs_create_u8("rx_size_auto_shrink", 0600, dentry,
- &i2400mu->rx_size_auto_shrink);
-
- debugfs_create_size_t("rx_size", 0600, dentry, &i2400mu->rx_size);
-}
-
-
-static struct device_type i2400mu_type = {
- .name = "wimax",
-};
-
-/*
- * Probe a i2400m interface and register it
- *
- * @iface: USB interface to link to
- * @id: USB class/subclass/protocol id
- * @returns: 0 if ok, < 0 errno code on error.
- *
- * Alloc a net device, initialize the bus-specific details and then
- * calls the bus-generic initialization routine. That will register
- * the wimax and netdev devices, upload the firmware [using
- * _bus_bm_*()], call _bus_dev_start() to finalize the setup of the
- * communication with the device and then will start to talk to it to
- * finnish setting it up.
- */
-static
-int i2400mu_probe(struct usb_interface *iface,
- const struct usb_device_id *id)
-{
- int result;
- struct net_device *net_dev;
- struct device *dev = &iface->dev;
- struct i2400m *i2400m;
- struct i2400mu *i2400mu;
- struct usb_device *usb_dev = interface_to_usbdev(iface);
-
- if (iface->cur_altsetting->desc.bNumEndpoints < 4)
- return -ENODEV;
-
- if (usb_dev->speed != USB_SPEED_HIGH)
- dev_err(dev, "device not connected as high speed\n");
-
- /* Allocate instance [calls i2400m_netdev_setup() on it]. */
- result = -ENOMEM;
- net_dev = alloc_netdev(sizeof(*i2400mu), "wmx%d", NET_NAME_UNKNOWN,
- i2400mu_netdev_setup);
- if (net_dev == NULL) {
- dev_err(dev, "no memory for network device instance\n");
- goto error_alloc_netdev;
- }
- SET_NETDEV_DEV(net_dev, dev);
- SET_NETDEV_DEVTYPE(net_dev, &i2400mu_type);
- i2400m = net_dev_to_i2400m(net_dev);
- i2400mu = container_of(i2400m, struct i2400mu, i2400m);
- i2400m->wimax_dev.net_dev = net_dev;
- i2400mu->usb_dev = usb_get_dev(usb_dev);
- i2400mu->usb_iface = iface;
- usb_set_intfdata(iface, i2400mu);
-
- i2400m->bus_tx_block_size = I2400MU_BLK_SIZE;
- /*
- * Room required in the Tx queue for USB message to accommodate
- * a smallest payload while allocating header space is 16 bytes.
- * Adding this room for the new tx message increases the
- * possibilities of including any payload with size <= 16 bytes.
- */
- i2400m->bus_tx_room_min = I2400MU_BLK_SIZE;
- i2400m->bus_pl_size_max = I2400MU_PL_SIZE_MAX;
- i2400m->bus_setup = NULL;
- i2400m->bus_dev_start = i2400mu_bus_dev_start;
- i2400m->bus_dev_stop = i2400mu_bus_dev_stop;
- i2400m->bus_release = NULL;
- i2400m->bus_tx_kick = i2400mu_bus_tx_kick;
- i2400m->bus_reset = i2400mu_bus_reset;
- i2400m->bus_bm_retries = I2400M_USB_BOOT_RETRIES;
- i2400m->bus_bm_cmd_send = i2400mu_bus_bm_cmd_send;
- i2400m->bus_bm_wait_for_ack = i2400mu_bus_bm_wait_for_ack;
- i2400m->bus_bm_mac_addr_impaired = 0;
-
- switch (id->idProduct) {
- case USB_DEVICE_ID_I6050:
- case USB_DEVICE_ID_I6050_2:
- case USB_DEVICE_ID_I6150:
- case USB_DEVICE_ID_I6150_2:
- case USB_DEVICE_ID_I6150_3:
- case USB_DEVICE_ID_I6250:
- i2400mu->i6050 = 1;
- break;
- default:
- break;
- }
-
- if (i2400mu->i6050) {
- i2400m->bus_fw_names = i2400mu_bus_fw_names_6050;
- i2400mu->endpoint_cfg.bulk_out = 0;
- i2400mu->endpoint_cfg.notification = 3;
- i2400mu->endpoint_cfg.reset_cold = 2;
- i2400mu->endpoint_cfg.bulk_in = 1;
- } else {
- i2400m->bus_fw_names = i2400mu_bus_fw_names_5x50;
- i2400mu->endpoint_cfg.bulk_out = 0;
- i2400mu->endpoint_cfg.notification = 1;
- i2400mu->endpoint_cfg.reset_cold = 2;
- i2400mu->endpoint_cfg.bulk_in = 3;
- }
-#ifdef CONFIG_PM
- iface->needs_remote_wakeup = 1; /* autosuspend (15s delay) */
- device_init_wakeup(dev, 1);
- pm_runtime_set_autosuspend_delay(&usb_dev->dev, 15000);
- usb_enable_autosuspend(usb_dev);
-#endif
-
- result = i2400m_setup(i2400m, I2400M_BRI_MAC_REINIT);
- if (result < 0) {
- dev_err(dev, "cannot setup device: %d\n", result);
- goto error_setup;
- }
- i2400mu_debugfs_add(i2400mu);
- return 0;
-
-error_setup:
- usb_set_intfdata(iface, NULL);
- usb_put_dev(i2400mu->usb_dev);
- free_netdev(net_dev);
-error_alloc_netdev:
- return result;
-}
-
-
-/*
- * Disconnect a i2400m from the system.
- *
- * i2400m_stop() has been called before, so al the rx and tx contexts
- * have been taken down already. Make sure the queue is stopped,
- * unregister netdev and i2400m, free and kill.
- */
-static
-void i2400mu_disconnect(struct usb_interface *iface)
-{
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- struct i2400m *i2400m = &i2400mu->i2400m;
- struct net_device *net_dev = i2400m->wimax_dev.net_dev;
- struct device *dev = &iface->dev;
-
- d_fnstart(3, dev, "(iface %p i2400m %p)\n", iface, i2400m);
-
- debugfs_remove_recursive(i2400mu->debugfs_dentry);
- i2400m_release(i2400m);
- usb_set_intfdata(iface, NULL);
- usb_put_dev(i2400mu->usb_dev);
- free_netdev(net_dev);
- d_fnend(3, dev, "(iface %p i2400m %p) = void\n", iface, i2400m);
-}
-
-
-/*
- * Get the device ready for USB port or system standby and hibernation
- *
- * USB port and system standby are handled the same.
- *
- * When the system hibernates, the USB device is powered down and then
- * up, so we don't really have to do much here, as it will be seen as
- * a reconnect. Still for simplicity we consider this case the same as
- * suspend, so that the device has a chance to do notify the base
- * station (if connected).
- *
- * So at the end, the three cases require common handling.
- *
- * If at the time of this call the device's firmware is not loaded,
- * nothing has to be done. Note we can be "loose" about not reading
- * i2400m->updown under i2400m->init_mutex. If it happens to change
- * inmediately, other parts of the call flow will fail and effectively
- * catch it.
- *
- * If the firmware is loaded, we need to:
- *
- * - tell the device to go into host interface power save mode, wait
- * for it to ack
- *
- * This is quite more interesting than it is; we need to execute a
- * command, but this time, we don't want the code in usb-{tx,rx}.c
- * to call the usb_autopm_get/put_interface() barriers as it'd
- * deadlock, so we need to decrement i2400mu->do_autopm, that acts
- * as a poor man's semaphore. Ugly, but it works.
- *
- * As well, the device might refuse going to sleep for whichever
- * reason. In this case we just fail. For system suspend/hibernate,
- * we *can't* fail. We check PMSG_IS_AUTO to see if the
- * suspend call comes from the USB stack or from the system and act
- * in consequence.
- *
- * - stop the notification endpoint polling
- */
-static
-int i2400mu_suspend(struct usb_interface *iface, pm_message_t pm_msg)
-{
- int result = 0;
- struct device *dev = &iface->dev;
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- unsigned is_autosuspend = 0;
- struct i2400m *i2400m = &i2400mu->i2400m;
-
-#ifdef CONFIG_PM
- if (PMSG_IS_AUTO(pm_msg))
- is_autosuspend = 1;
-#endif
-
- d_fnstart(3, dev, "(iface %p pm_msg %u)\n", iface, pm_msg.event);
- rmb(); /* see i2400m->updown's documentation */
- if (i2400m->updown == 0)
- goto no_firmware;
- if (i2400m->state == I2400M_SS_DATA_PATH_CONNECTED && is_autosuspend) {
- /* ugh -- the device is connected and this suspend
- * request is an autosuspend one (not a system standby
- * / hibernate).
- *
- * The only way the device can go to standby is if the
- * link with the base station is in IDLE mode; that
- * were the case, we'd be in status
- * I2400M_SS_CONNECTED_IDLE. But we are not.
- *
- * If we *tell* him to go power save now, it'll reset
- * as a precautionary measure, so if this is an
- * autosuspend thing, say no and it'll come back
- * later, when the link is IDLE
- */
- result = -EBADF;
- d_printf(1, dev, "fw up, link up, not-idle, autosuspend: "
- "not entering powersave\n");
- goto error_not_now;
- }
- d_printf(1, dev, "fw up: entering powersave\n");
- atomic_dec(&i2400mu->do_autopm);
- result = i2400m_cmd_enter_powersave(i2400m);
- atomic_inc(&i2400mu->do_autopm);
- if (result < 0 && !is_autosuspend) {
- /* System suspend, can't fail */
- dev_err(dev, "failed to suspend, will reset on resume\n");
- result = 0;
- }
- if (result < 0)
- goto error_enter_powersave;
- i2400mu_notification_release(i2400mu);
- d_printf(1, dev, "powersave requested\n");
-error_enter_powersave:
-error_not_now:
-no_firmware:
- d_fnend(3, dev, "(iface %p pm_msg %u) = %d\n",
- iface, pm_msg.event, result);
- return result;
-}
-
-
-static
-int i2400mu_resume(struct usb_interface *iface)
-{
- int ret = 0;
- struct device *dev = &iface->dev;
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- struct i2400m *i2400m = &i2400mu->i2400m;
-
- d_fnstart(3, dev, "(iface %p)\n", iface);
- rmb(); /* see i2400m->updown's documentation */
- if (i2400m->updown == 0) {
- d_printf(1, dev, "fw was down, no resume needed\n");
- goto out;
- }
- d_printf(1, dev, "fw was up, resuming\n");
- i2400mu_notification_setup(i2400mu);
- /* USB has flow control, so we don't need to give it time to
- * come back; otherwise, we'd use something like a get-state
- * command... */
-out:
- d_fnend(3, dev, "(iface %p) = %d\n", iface, ret);
- return ret;
-}
-
-
-static
-int i2400mu_reset_resume(struct usb_interface *iface)
-{
- int result;
- struct device *dev = &iface->dev;
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- struct i2400m *i2400m = &i2400mu->i2400m;
-
- d_fnstart(3, dev, "(iface %p)\n", iface);
- result = i2400m_dev_reset_handle(i2400m, "device reset on resume");
- d_fnend(3, dev, "(iface %p) = %d\n", iface, result);
- return result < 0 ? result : 0;
-}
-
-
-/*
- * Another driver or user space is triggering a reset on the device
- * which contains the interface passed as an argument. Cease IO and
- * save any device state you need to restore.
- *
- * If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if
- * you are in atomic context.
- */
-static
-int i2400mu_pre_reset(struct usb_interface *iface)
-{
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- return i2400m_pre_reset(&i2400mu->i2400m);
-}
-
-
-/*
- * The reset has completed. Restore any saved device state and begin
- * using the device again.
- *
- * If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if
- * you are in atomic context.
- */
-static
-int i2400mu_post_reset(struct usb_interface *iface)
-{
- struct i2400mu *i2400mu = usb_get_intfdata(iface);
- return i2400m_post_reset(&i2400mu->i2400m);
-}
-
-
-static
-struct usb_device_id i2400mu_id_table[] = {
- { USB_DEVICE(0x8086, USB_DEVICE_ID_I6050) },
- { USB_DEVICE(0x8086, USB_DEVICE_ID_I6050_2) },
- { USB_DEVICE(0x8087, USB_DEVICE_ID_I6150) },
- { USB_DEVICE(0x8087, USB_DEVICE_ID_I6150_2) },
- { USB_DEVICE(0x8087, USB_DEVICE_ID_I6150_3) },
- { USB_DEVICE(0x8086, USB_DEVICE_ID_I6250) },
- { USB_DEVICE(0x8086, 0x0181) },
- { USB_DEVICE(0x8086, 0x1403) },
- { USB_DEVICE(0x8086, 0x1405) },
- { USB_DEVICE(0x8086, 0x0180) },
- { USB_DEVICE(0x8086, 0x0182) },
- { USB_DEVICE(0x8086, 0x1406) },
- { USB_DEVICE(0x8086, 0x1403) },
- { },
-};
-MODULE_DEVICE_TABLE(usb, i2400mu_id_table);
-
-
-static
-struct usb_driver i2400mu_driver = {
- .name = KBUILD_MODNAME,
- .suspend = i2400mu_suspend,
- .resume = i2400mu_resume,
- .reset_resume = i2400mu_reset_resume,
- .probe = i2400mu_probe,
- .disconnect = i2400mu_disconnect,
- .pre_reset = i2400mu_pre_reset,
- .post_reset = i2400mu_post_reset,
- .id_table = i2400mu_id_table,
- .supports_autosuspend = 1,
-};
-
-static
-int __init i2400mu_driver_init(void)
-{
- d_parse_params(D_LEVEL, D_LEVEL_SIZE, i2400mu_debug_params,
- "i2400m_usb.debug");
- return usb_register(&i2400mu_driver);
-}
-module_init(i2400mu_driver_init);
-
-
-static
-void __exit i2400mu_driver_exit(void)
-{
- usb_deregister(&i2400mu_driver);
-}
-module_exit(i2400mu_driver_exit);
-
-MODULE_AUTHOR("Intel Corporation <linux-wimax@intel.com>");
-MODULE_DESCRIPTION("Driver for USB based Intel Wireless WiMAX Connection 2400M "
- "(5x50 & 6050)");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(I2400MU_FW_FILE_NAME_v1_5);
-MODULE_FIRMWARE(I6050U_FW_FILE_NAME_v1_5);
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-25 13:13:30 +0300