From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/drivers/media/rc/iguanair.c | 59 +++++++++--------------------------------------------------
1 files changed, 9 insertions(+), 50 deletions(-)
diff --git a/kernel/drivers/media/rc/iguanair.c b/kernel/drivers/media/rc/iguanair.c
index 1df9522..84949ba 100644
--- a/kernel/drivers/media/rc/iguanair.c
+++ b/kernel/drivers/media/rc/iguanair.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IguanaWorks USB IR Transceiver support
*
* Copyright (C) 2012 Sean Young <sean@mess.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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.
*/
#include <linux/device.h>
@@ -23,7 +14,6 @@
#include <linux/completion.h>
#include <media/rc-core.h>
-#define DRIVER_NAME "iguanair"
#define BUF_SIZE 152
struct iguanair {
@@ -35,8 +25,6 @@
uint16_t version;
uint8_t bufsize;
uint8_t cycle_overhead;
-
- struct mutex lock;
/* receiver support */
bool receiver_on;
@@ -71,7 +59,7 @@
#define MAX_IN_PACKET 8u
#define MAX_OUT_PACKET (sizeof(struct send_packet) + BUF_SIZE)
#define TIMEOUT 1000
-#define RX_RESOLUTION 21333
+#define RX_RESOLUTION 21
struct packet {
uint16_t start;
@@ -85,7 +73,7 @@
uint8_t channels;
uint8_t busy7;
uint8_t busy4;
- uint8_t payload[0];
+ uint8_t payload[];
};
static void process_ir_data(struct iguanair *ir, unsigned len)
@@ -113,7 +101,7 @@
break;
case CMD_TX_OVERFLOW:
ir->tx_overflow = true;
- /* fall through */
+ fallthrough;
case CMD_RECEIVER_OFF:
case CMD_RECEIVER_ON:
case CMD_SEND:
@@ -129,16 +117,14 @@
break;
}
} else if (len >= 7) {
- DEFINE_IR_RAW_EVENT(rawir);
+ struct ir_raw_event rawir = {};
unsigned i;
bool event = false;
-
- init_ir_raw_event(&rawir);
for (i = 0; i < 7; i++) {
if (ir->buf_in[i] == 0x80) {
rawir.pulse = false;
- rawir.duration = US_TO_NS(21845);
+ rawir.duration = 21845;
} else {
rawir.pulse = (ir->buf_in[i] & 0x80) == 0;
rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) *
@@ -295,8 +281,6 @@
if (carrier < 25000 || carrier > 150000)
return -EINVAL;
- mutex_lock(&ir->lock);
-
if (carrier != ir->carrier) {
uint32_t cycles, fours, sevens;
@@ -325,8 +309,6 @@
ir->packet->busy4 = 110 - fours;
}
- mutex_unlock(&ir->lock);
-
return 0;
}
@@ -337,9 +319,7 @@
if (mask > 15)
return 4;
- mutex_lock(&ir->lock);
ir->packet->channels = mask << 4;
- mutex_unlock(&ir->lock);
return 0;
}
@@ -349,8 +329,6 @@
struct iguanair *ir = dev->priv;
unsigned int i, size, p, periods;
int rc;
-
- mutex_lock(&ir->lock);
/* convert from us to carrier periods */
for (i = size = 0; i < count; i++) {
@@ -379,8 +357,6 @@
rc = -EOVERFLOW;
out:
- mutex_unlock(&ir->lock);
-
return rc ? rc : count;
}
@@ -389,13 +365,9 @@
struct iguanair *ir = rdev->priv;
int rc;
- mutex_lock(&ir->lock);
-
rc = iguanair_receiver(ir, true);
if (rc == 0)
ir->receiver_on = true;
-
- mutex_unlock(&ir->lock);
return rc;
}
@@ -405,14 +377,10 @@
struct iguanair *ir = rdev->priv;
int rc;
- mutex_lock(&ir->lock);
-
rc = iguanair_receiver(ir, false);
ir->receiver_on = false;
if (rc && rc != -ENODEV)
dev_warn(ir->dev, "failed to disable receiver: %d\n", rc);
-
- mutex_unlock(&ir->lock);
}
static int iguanair_probe(struct usb_interface *intf,
@@ -452,7 +420,6 @@
ir->rc = rc;
ir->dev = &intf->dev;
ir->udev = udev;
- mutex_init(&ir->lock);
init_completion(&ir->completion);
pipeout = usb_sndintpipe(udev,
@@ -494,7 +461,7 @@
rc->s_tx_mask = iguanair_set_tx_mask;
rc->s_tx_carrier = iguanair_set_tx_carrier;
rc->tx_ir = iguanair_tx;
- rc->driver_name = DRIVER_NAME;
+ rc->driver_name = KBUILD_MODNAME;
rc->map_name = RC_MAP_RC6_MCE;
rc->min_timeout = 1;
rc->timeout = IR_DEFAULT_TIMEOUT;
@@ -549,8 +516,6 @@
struct iguanair *ir = usb_get_intfdata(intf);
int rc = 0;
- mutex_lock(&ir->lock);
-
if (ir->receiver_on) {
rc = iguanair_receiver(ir, false);
if (rc)
@@ -560,17 +525,13 @@
usb_kill_urb(ir->urb_in);
usb_kill_urb(ir->urb_out);
- mutex_unlock(&ir->lock);
-
return rc;
}
static int iguanair_resume(struct usb_interface *intf)
{
struct iguanair *ir = usb_get_intfdata(intf);
- int rc = 0;
-
- mutex_lock(&ir->lock);
+ int rc;
rc = usb_submit_urb(ir->urb_in, GFP_KERNEL);
if (rc)
@@ -582,8 +543,6 @@
dev_warn(ir->dev, "failed to enable receiver after resume\n");
}
- mutex_unlock(&ir->lock);
-
return rc;
}
@@ -593,7 +552,7 @@
};
static struct usb_driver iguanair_driver = {
- .name = DRIVER_NAME,
+ .name = KBUILD_MODNAME,
.probe = iguanair_probe,
.disconnect = iguanair_disconnect,
.suspend = iguanair_suspend,
--
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