From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 170 +++++++++++++++++++++++++++++++++-----------------------
1 files changed, 100 insertions(+), 70 deletions(-)
diff --git a/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c b/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
index 41254f0..9fb68c2 100644
--- a/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+++ b/kernel/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2011 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
@@ -175,7 +164,6 @@
struct urb *bulk_urb; /* used for FW download */
- bool wowl_enabled;
struct brcmf_mp_device *settings;
};
@@ -323,27 +311,43 @@
int err = 0;
int timeout = 0;
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
+ struct usb_interface *intf = to_usb_interface(dev);
brcmf_dbg(USB, "Enter\n");
- if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
- return -EIO;
- if (test_and_set_bit(0, &devinfo->ctl_op))
- return -EIO;
+ err = usb_autopm_get_interface(intf);
+ if (err)
+ goto out;
+
+ if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
+ err = -EIO;
+ goto fail;
+ }
+
+ if (test_and_set_bit(0, &devinfo->ctl_op)) {
+ err = -EIO;
+ goto fail;
+ }
devinfo->ctl_completed = false;
err = brcmf_usb_send_ctl(devinfo, buf, len);
if (err) {
brcmf_err("fail %d bytes: %d\n", err, len);
clear_bit(0, &devinfo->ctl_op);
- return err;
+ goto fail;
}
timeout = brcmf_usb_ioctl_resp_wait(devinfo);
- clear_bit(0, &devinfo->ctl_op);
if (!timeout) {
brcmf_err("Txctl wait timed out\n");
+ usb_kill_urb(devinfo->ctl_urb);
err = -EIO;
+ goto fail;
}
+ clear_bit(0, &devinfo->ctl_op);
+
+fail:
+ usb_autopm_put_interface(intf);
+out:
return err;
}
@@ -352,32 +356,46 @@
int err = 0;
int timeout = 0;
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
+ struct usb_interface *intf = to_usb_interface(dev);
brcmf_dbg(USB, "Enter\n");
- if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
- return -EIO;
- if (test_and_set_bit(0, &devinfo->ctl_op))
- return -EIO;
+ err = usb_autopm_get_interface(intf);
+ if (err)
+ goto out;
+
+ if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
+ err = -EIO;
+ goto fail;
+ }
+
+ if (test_and_set_bit(0, &devinfo->ctl_op)) {
+ err = -EIO;
+ goto fail;
+ }
devinfo->ctl_completed = false;
err = brcmf_usb_recv_ctl(devinfo, buf, len);
if (err) {
brcmf_err("fail %d bytes: %d\n", err, len);
clear_bit(0, &devinfo->ctl_op);
- return err;
+ goto fail;
}
timeout = brcmf_usb_ioctl_resp_wait(devinfo);
err = devinfo->ctl_urb_status;
- clear_bit(0, &devinfo->ctl_op);
if (!timeout) {
brcmf_err("rxctl wait timed out\n");
+ usb_kill_urb(devinfo->ctl_urb);
err = -EIO;
+ goto fail;
}
+ clear_bit(0, &devinfo->ctl_op);
+fail:
+ usb_autopm_put_interface(intf);
if (!err)
return devinfo->ctl_urb_actual_length;
- else
- return err;
+out:
+ return err;
}
static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
@@ -446,22 +464,17 @@
}
-static void brcmf_usb_free_q(struct list_head *q, bool pending)
+static void brcmf_usb_free_q(struct list_head *q)
{
struct brcmf_usbreq *req, *next;
- int i = 0;
+
list_for_each_entry_safe(req, next, q, list) {
if (!req->urb) {
brcmf_err("bad req\n");
break;
}
- i++;
- if (pending) {
- usb_kill_urb(req->urb);
- } else {
- usb_free_urb(req->urb);
- list_del_init(&req->list);
- }
+ usb_free_urb(req->urb);
+ list_del_init(&req->list);
}
}
@@ -509,17 +522,19 @@
skb = req->skb;
req->skb = NULL;
- /* zero lenght packets indicate usb "failure". Do not refill */
+ /* zero length packets indicate usb "failure". Do not refill */
if (urb->status != 0 || !urb->actual_length) {
brcmu_pkt_buf_free_skb(skb);
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
return;
}
- if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
+ if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP ||
+ devinfo->bus_pub.state == BRCMFMAC_USB_STATE_SLEEP) {
skb_put(skb, urb->actual_length);
- brcmf_rx_frame(devinfo->dev, skb, true);
+ brcmf_rx_frame(devinfo->dev, skb, true, true);
brcmf_usb_rx_refill(devinfo, req);
+ usb_mark_last_busy(urb->dev);
} else {
brcmu_pkt_buf_free_skb(skb);
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
@@ -576,7 +591,6 @@
brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
{
struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
- int old_state;
brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
devinfo->bus_pub.state, state);
@@ -584,7 +598,6 @@
if (devinfo->bus_pub.state == state)
return;
- old_state = devinfo->bus_pub.state;
devinfo->bus_pub.state = state;
/* update state of upper layer */
@@ -605,6 +618,11 @@
struct brcmf_usbreq *req;
int ret;
unsigned long flags;
+ struct usb_interface *intf = to_usb_interface(dev);
+
+ ret = usb_autopm_get_interface(intf);
+ if (ret)
+ goto out;
brcmf_dbg(USB, "Enter, skb=%p\n", skb);
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
@@ -643,9 +661,10 @@
devinfo->tx_flowblock = true;
}
spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
- return 0;
fail:
+ usb_autopm_put_interface(intf);
+out:
return ret;
}
@@ -1009,20 +1028,32 @@
brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
{
int err;
+ struct usb_interface *intf;
brcmf_dbg(USB, "Enter\n");
- if (devinfo == NULL)
- return -ENODEV;
+ if (!devinfo) {
+ err = -ENODEV;
+ goto out;
+ }
if (!devinfo->image) {
brcmf_err("No firmware!\n");
- return -ENOENT;
+ err = -ENOENT;
+ goto out;
}
+
+ intf = to_usb_interface(devinfo->dev);
+ err = usb_autopm_get_interface(intf);
+ if (err)
+ goto out;
err = brcmf_usb_dlstart(devinfo,
(u8 *)devinfo->image, devinfo->image_len);
if (err == 0)
err = brcmf_usb_dlrun(devinfo);
+
+ usb_autopm_put_interface(intf);
+out:
return err;
}
@@ -1032,8 +1063,8 @@
brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
/* free the URBS */
- brcmf_usb_free_q(&devinfo->rx_freeq, false);
- brcmf_usb_free_q(&devinfo->tx_freeq, false);
+ brcmf_usb_free_q(&devinfo->rx_freeq);
+ brcmf_usb_free_q(&devinfo->tx_freeq);
usb_free_urb(devinfo->ctl_urb);
usb_free_urb(devinfo->bulk_urb);
@@ -1123,18 +1154,6 @@
return NULL;
}
-static void brcmf_usb_wowl_config(struct device *dev, bool enabled)
-{
- struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
-
- brcmf_dbg(USB, "Configuring WOWL, enabled=%d\n", enabled);
- devinfo->wowl_enabled = enabled;
- if (enabled)
- device_set_wakeup_enable(devinfo->dev, true);
- else
- device_set_wakeup_enable(devinfo->dev, false);
-}
-
static
int brcmf_usb_get_fwname(struct device *dev, const char *ext, u8 *fw_name)
{
@@ -1161,7 +1180,6 @@
.txdata = brcmf_usb_tx,
.txctl = brcmf_usb_tx_ctlpkt,
.rxctl = brcmf_usb_rx_ctlpkt,
- .wowl_config = brcmf_usb_wowl_config,
.get_fwname = brcmf_usb_get_fwname,
};
@@ -1197,8 +1215,12 @@
if (ret)
goto error;
+ ret = brcmf_alloc(devinfo->dev, devinfo->settings);
+ if (ret)
+ goto error;
+
/* Attach to the common driver interface */
- ret = brcmf_attach(devinfo->dev, devinfo->settings);
+ ret = brcmf_attach(devinfo->dev);
if (ret)
goto error;
@@ -1270,7 +1292,10 @@
}
if (!brcmf_usb_dlneeded(devinfo)) {
- ret = brcmf_attach(devinfo->dev, devinfo->settings);
+ ret = brcmf_alloc(devinfo->dev, devinfo->settings);
+ if (ret)
+ goto fail;
+ ret = brcmf_attach(devinfo->dev);
if (ret)
goto fail;
/* we are done */
@@ -1298,6 +1323,7 @@
fail:
/* Release resources in reverse order */
+ brcmf_free(devinfo->dev);
kfree(bus);
brcmf_usb_detach(devinfo);
return ret;
@@ -1311,6 +1337,7 @@
brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
brcmf_detach(devinfo->dev);
+ brcmf_free(devinfo->dev);
kfree(devinfo->bus_pub.bus);
brcmf_usb_detach(devinfo);
}
@@ -1340,6 +1367,8 @@
init_completion(&devinfo->dev_init_done);
usb_set_intfdata(intf, devinfo);
+
+ intf->needs_remote_wakeup = 1;
/* Check that the device supports only one configuration */
if (usb->descriptor.bNumConfigurations != 1) {
@@ -1454,10 +1483,8 @@
brcmf_dbg(USB, "Enter\n");
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
- if (devinfo->wowl_enabled)
- brcmf_cancel_all_urbs(devinfo);
- else
- brcmf_detach(&usb->dev);
+ brcmf_cancel_all_urbs(devinfo);
+ device_set_wakeup_enable(devinfo->dev, true);
return 0;
}
@@ -1470,11 +1497,10 @@
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
brcmf_dbg(USB, "Enter\n");
- if (!devinfo->wowl_enabled)
- return brcmf_attach(devinfo->dev, devinfo->settings);
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
brcmf_usb_rx_fill_all(devinfo);
+ device_set_wakeup_enable(devinfo->dev, false);
return 0;
}
@@ -1531,6 +1557,7 @@
.suspend = brcmf_usb_suspend,
.resume = brcmf_usb_resume,
.reset_resume = brcmf_usb_reset_resume,
+ .supports_autosuspend = true,
.disable_hub_initiated_lpm = 1,
};
@@ -1551,11 +1578,14 @@
brcmf_dbg(USB, "Enter\n");
ret = driver_for_each_device(drv, NULL, NULL,
brcmf_usb_reset_device);
+ if (ret)
+ brcmf_err("failed to reset all usb devices %d\n", ret);
+
usb_deregister(&brcmf_usbdrvr);
}
-void brcmf_usb_register(void)
+int brcmf_usb_register(void)
{
brcmf_dbg(USB, "Enter\n");
- usb_register(&brcmf_usbdrvr);
+ return usb_register(&brcmf_usbdrvr);
}
--
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