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net: usb: aqc111: Add implementation of read and write commands

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Read/write command register defines and functions

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bezrukov 2018-11-26 09:33:04 +00:00 committed by David S. Miller
parent 7cea2d40af
commit 619fcb4487
2 changed files with 110 additions and 0 deletions
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92
drivers/net/usb/aqc111.c
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@ -14,6 +14,98 @@
#include <linux/usb/cdc.h> #include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h> #include <linux/usb/usbnet.h>
#include "aqc111.h"
static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
ret = usbnet_read_cmd_nopm(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, data, size);
if (unlikely(ret < 0))
netdev_warn(dev->net,
"Failed to read(0x%x) reg index 0x%04x: %d\n",
cmd, index, ret);
return ret;
}
static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
ret = usbnet_read_cmd(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, data, size);
if (unlikely(ret < 0))
netdev_warn(dev->net,
"Failed to read(0x%x) reg index 0x%04x: %d\n",
cmd, index, ret);
return ret;
}
static int __aqc111_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
u16 value, u16 index, u16 size, const void *data)
{
int err = -ENOMEM;
void *buf = NULL;
netdev_dbg(dev->net,
"%s cmd=%#x reqtype=%#x value=%#x index=%#x size=%d\n",
__func__, cmd, reqtype, value, index, size);
if (data) {
buf = kmemdup(data, size, GFP_KERNEL);
if (!buf)
goto out;
}
err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
cmd, reqtype, value, index, buf, size,
(cmd == AQ_PHY_POWER) ? AQ_USB_PHY_SET_TIMEOUT :
AQ_USB_SET_TIMEOUT);
if (unlikely(err < 0))
netdev_warn(dev->net,
"Failed to write(0x%x) reg index 0x%04x: %d\n",
cmd, index, err);
kfree(buf);
out:
return err;
}
static int aqc111_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, size, data);
return ret;
}
static int aqc111_write_cmd(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data)
{
int ret;
if (usb_autopm_get_interface(dev->intf) < 0)
return -ENODEV;
ret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, index, size, data);
usb_autopm_put_interface(dev->intf);
return ret;
}
static const struct net_device_ops aqc111_netdev_ops = { static const struct net_device_ops aqc111_netdev_ops = {
.ndo_open = usbnet_open, .ndo_open = usbnet_open,
.ndo_stop = usbnet_stop, .ndo_stop = usbnet_stop,

18
drivers/net/usb/aqc111.h Normal file
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@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0-or-later
* Aquantia Corp. Aquantia AQtion USB to 5GbE Controller
* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
* Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
* Copyright (C) 2002-2003 TiVo Inc.
* Copyright (C) 2017-2018 ASIX
* Copyright (C) 2018 Aquantia Corp.
*/
#ifndef __LINUX_USBNET_AQC111_H
#define __LINUX_USBNET_AQC111_H
#define AQ_PHY_POWER 0x31
#define AQ_USB_PHY_SET_TIMEOUT 10000
#define AQ_USB_SET_TIMEOUT 4000
#endif /* __LINUX_USBNET_AQC111_H */