119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
|
|
Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
|
|
<http://rt2x00.serialmonkey.com>
|
|
|
|
*/
|
|
|
|
/*
|
|
Module: rt2x00lib
|
|
Abstract: rt2x00 firmware loading routines.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
|
|
#include "rt2x00.h"
|
|
#include "rt2x00lib.h"
|
|
|
|
static int rt2x00lib_request_firmware(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
struct device *device = wiphy_dev(rt2x00dev->hw->wiphy);
|
|
const struct firmware *fw;
|
|
char *fw_name;
|
|
int retval;
|
|
|
|
/*
|
|
* Read correct firmware from harddisk.
|
|
*/
|
|
fw_name = rt2x00dev->ops->lib->get_firmware_name(rt2x00dev);
|
|
if (!fw_name) {
|
|
rt2x00_err(rt2x00dev,
|
|
"Invalid firmware filename\n"
|
|
"Please file bug report to %s\n", DRV_PROJECT);
|
|
return -EINVAL;
|
|
}
|
|
|
|
rt2x00_info(rt2x00dev, "Loading firmware file '%s'\n", fw_name);
|
|
|
|
retval = request_firmware(&fw, fw_name, device);
|
|
if (retval) {
|
|
rt2x00_err(rt2x00dev, "Failed to request Firmware\n");
|
|
return retval;
|
|
}
|
|
|
|
if (!fw || !fw->size || !fw->data) {
|
|
rt2x00_err(rt2x00dev, "Failed to read Firmware\n");
|
|
release_firmware(fw);
|
|
return -ENOENT;
|
|
}
|
|
|
|
rt2x00_info(rt2x00dev, "Firmware detected - version: %d.%d\n",
|
|
fw->data[fw->size - 4], fw->data[fw->size - 3]);
|
|
snprintf(rt2x00dev->hw->wiphy->fw_version,
|
|
sizeof(rt2x00dev->hw->wiphy->fw_version), "%d.%d",
|
|
fw->data[fw->size - 4], fw->data[fw->size - 3]);
|
|
|
|
retval = rt2x00dev->ops->lib->check_firmware(rt2x00dev, fw->data, fw->size);
|
|
switch (retval) {
|
|
case FW_OK:
|
|
break;
|
|
case FW_BAD_CRC:
|
|
rt2x00_err(rt2x00dev, "Firmware checksum error\n");
|
|
goto exit;
|
|
case FW_BAD_LENGTH:
|
|
rt2x00_err(rt2x00dev, "Invalid firmware file length (len=%zu)\n",
|
|
fw->size);
|
|
goto exit;
|
|
case FW_BAD_VERSION:
|
|
rt2x00_err(rt2x00dev, "Current firmware does not support detected chipset\n");
|
|
goto exit;
|
|
}
|
|
|
|
rt2x00dev->fw = fw;
|
|
|
|
return 0;
|
|
|
|
exit:
|
|
release_firmware(fw);
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
int retval;
|
|
|
|
if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_FIRMWARE))
|
|
return 0;
|
|
|
|
if (!rt2x00dev->fw) {
|
|
retval = rt2x00lib_request_firmware(rt2x00dev);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Send firmware to the device.
|
|
*/
|
|
retval = rt2x00dev->ops->lib->load_firmware(rt2x00dev,
|
|
rt2x00dev->fw->data,
|
|
rt2x00dev->fw->size);
|
|
|
|
/*
|
|
* When the firmware is uploaded to the hardware the LED
|
|
* association status might have been triggered, for correct
|
|
* LED handling it should now be reset.
|
|
*/
|
|
rt2x00leds_led_assoc(rt2x00dev, false);
|
|
|
|
return retval;
|
|
}
|
|
|
|
void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
release_firmware(rt2x00dev->fw);
|
|
rt2x00dev->fw = NULL;
|
|
}
|