From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/iio/common/hid-sensors/hid-sensor-attributes.c | 84 +++++++++++++++++++-----------------------
1 files changed, 38 insertions(+), 46 deletions(-)
diff --git a/kernel/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/kernel/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
index ed3849d..442ff78 100644
--- a/kernel/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+++ b/kernel/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
@@ -1,30 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* HID Sensors Driver
* Copyright (c) 2012, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/kernel.h>
#include <linux/slab.h>
+#include <linux/time.h>
+
#include <linux/hid-sensor-hub.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+
+#define HZ_PER_MHZ 1000000L
static struct {
u32 usage_id;
@@ -81,16 +73,6 @@
{HID_USAGE_SENSOR_HUMIDITY, 0, 1000, 0},
};
-static int pow_10(unsigned power)
-{
- int i;
- int ret = 1;
- for (i = 0; i < power; ++i)
- ret = ret * 10;
-
- return ret;
-}
-
static void simple_div(int dividend, int divisor, int *whole,
int *micro_frac)
{
@@ -109,14 +91,16 @@
rem *= 10;
exp++;
}
- *micro_frac = (rem / divisor) * pow_10(6-exp);
+ *micro_frac = (rem / divisor) * int_pow(10, 6 - exp);
}
}
static void split_micro_fraction(unsigned int no, int exp, int *val1, int *val2)
{
- *val1 = no/pow_10(exp);
- *val2 = no%pow_10(exp) * pow_10(6-exp);
+ int divisor = int_pow(10, exp);
+
+ *val1 = no / divisor;
+ *val2 = no % divisor * int_pow(10, 6 - exp);
}
/*
@@ -138,7 +122,7 @@
}
exp = hid_sensor_convert_exponent(exp);
if (exp >= 0) {
- *val1 = sign * value * pow_10(exp);
+ *val1 = sign * value * int_pow(10, exp);
*val2 = 0;
} else {
split_micro_fraction(value, -exp, val1, val2);
@@ -151,6 +135,7 @@
static u32 convert_to_vtf_format(int size, int exp, int val1, int val2)
{
+ int divisor;
u32 value;
int sign = 1;
@@ -158,10 +143,13 @@
sign = -1;
exp = hid_sensor_convert_exponent(exp);
if (exp < 0) {
- value = abs(val1) * pow_10(-exp);
- value += abs(val2) / pow_10(6+exp);
- } else
- value = abs(val1) / pow_10(exp);
+ divisor = int_pow(10, 6 + exp);
+ value = abs(val1) * int_pow(10, -exp);
+ value += abs(val2) / divisor;
+ } else {
+ divisor = int_pow(10, exp);
+ value = abs(val1) / divisor;
+ }
if (sign < 0)
value = ((1LL << (size * 8)) - value);
@@ -224,12 +212,12 @@
if (val1 < 0 || val2 < 0)
return -EINVAL;
- value = val1 * pow_10(6) + val2;
+ value = val1 * HZ_PER_MHZ + val2;
if (value) {
if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND)
- value = pow_10(9)/value;
+ value = NSEC_PER_SEC / value;
else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND)
- value = pow_10(6)/value;
+ value = USEC_PER_SEC / value;
else
value = 0;
}
@@ -318,40 +306,44 @@
static void adjust_exponent_nano(int *val0, int *val1, int scale0,
int scale1, int exp)
{
+ int divisor;
int i;
int x;
int res;
int rem;
if (exp > 0) {
- *val0 = scale0 * pow_10(exp);
+ *val0 = scale0 * int_pow(10, exp);
res = 0;
if (exp > 9) {
*val1 = 0;
return;
}
for (i = 0; i < exp; ++i) {
- x = scale1 / pow_10(8 - i);
- res += (pow_10(exp - 1 - i) * x);
- scale1 = scale1 % pow_10(8 - i);
+ divisor = int_pow(10, 8 - i);
+ x = scale1 / divisor;
+ res += int_pow(10, exp - 1 - i) * x;
+ scale1 = scale1 % divisor;
}
*val0 += res;
- *val1 = scale1 * pow_10(exp);
+ *val1 = scale1 * int_pow(10, exp);
} else if (exp < 0) {
exp = abs(exp);
if (exp > 9) {
*val0 = *val1 = 0;
return;
}
- *val0 = scale0 / pow_10(exp);
- rem = scale0 % pow_10(exp);
+ divisor = int_pow(10, exp);
+ *val0 = scale0 / divisor;
+ rem = scale0 % divisor;
res = 0;
for (i = 0; i < (9 - exp); ++i) {
- x = scale1 / pow_10(8 - i);
- res += (pow_10(8 - exp - i) * x);
- scale1 = scale1 % pow_10(8 - i);
+ divisor = int_pow(10, 8 - i);
+ x = scale1 / divisor;
+ res += int_pow(10, 8 - exp - i) * x;
+ scale1 = scale1 % divisor;
}
- *val1 = rem * pow_10(9 - exp) + res;
+ *val1 = rem * int_pow(10, 9 - exp) + res;
} else {
*val0 = scale0;
*val1 = scale1;
--
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