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path: root/drivers/media/rc/redrat3.c
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Diffstat (limited to 'drivers/media/rc/redrat3.c')
-rw-r--r--drivers/media/rc/redrat3.c79
1 files changed, 34 insertions, 45 deletions
diff --git a/drivers/media/rc/redrat3.c b/drivers/media/rc/redrat3.c
index 56d43be2756b..a49173f54a4d 100644
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB RedRat3 IR Transceiver rc-core driver
*
@@ -5,7 +6,7 @@
* based heavily on the work of Stephen Cox, with additional
* help from RedRat Ltd.
*
- * This driver began life based an an old version of the first-generation
+ * This driver began life based on an old version of the first-generation
* lirc_mceusb driver from the lirc 0.7.2 distribution. It was then
* significantly rewritten by Stephen Cox with the aid of RedRat Ltd's
* Chris Dodge.
@@ -28,20 +29,9 @@
* It uses its own little protocol to communicate, the required
* parts of which are embedded within this driver.
* --
- *
- * 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 <asm/unaligned.h>
+#include <linux/unaligned.h>
#include <linux/device.h>
#include <linux/leds.h>
#include <linux/module.h>
@@ -140,7 +130,7 @@ MODULE_PARM_DESC(length_fuzz, "Length Fuzz (0-127)");
* When receiving a continuous ir stream (for example when a user is
* holding a button down on a remote), this specifies the minimum size
* of a space when the redrat3 sends a irdata packet to the host. Specified
- * in miliseconds. Default value 18ms.
+ * in milliseconds. Default value 18ms.
* The value can be between 2 and 30 inclusive.
*/
static int minimum_pause = 18;
@@ -186,7 +176,7 @@ struct redrat3_error {
} __packed;
/* table of devices that work with this driver */
-static struct usb_device_id redrat3_dev_table[] = {
+static const struct usb_device_id redrat3_dev_table[] = {
/* Original version of the RedRat3 */
{USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)},
/* Second Version/release of the RedRat3 - RetRat3-II */
@@ -348,9 +338,9 @@ static u32 redrat3_us_to_len(u32 microsec)
static void redrat3_process_ir_data(struct redrat3_dev *rr3)
{
- DEFINE_IR_RAW_EVENT(rawir);
+ struct ir_raw_event rawir = {};
struct device *dev;
- unsigned int i, sig_size, single_len, offset, val;
+ unsigned int i, sig_size, offset, val;
u32 mod_freq;
dev = rr3->dev;
@@ -358,10 +348,10 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
mod_freq = redrat3_val_to_mod_freq(&rr3->irdata);
dev_dbg(dev, "Got mod_freq of %u\n", mod_freq);
if (mod_freq && rr3->wideband) {
- DEFINE_IR_RAW_EVENT(ev);
-
- ev.carrier_report = 1;
- ev.carrier = mod_freq;
+ struct ir_raw_event ev = {
+ .carrier_report = 1,
+ .carrier = mod_freq
+ };
ir_raw_event_store(rr3->rc, &ev);
}
@@ -371,7 +361,6 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
for (i = 0; i < sig_size; i++) {
offset = rr3->irdata.sigdata[i];
val = get_unaligned_be16(&rr3->irdata.lens[offset]);
- single_len = redrat3_len_to_us(val);
/* we should always get pulse/space/pulse/space samples */
if (i % 2)
@@ -379,7 +368,7 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
else
rawir.pulse = true;
- rawir.duration = US_TO_NS(single_len);
+ rawir.duration = redrat3_len_to_us(val);
/* cap the value to IR_MAX_DURATION */
rawir.duration = (rawir.duration > IR_MAX_DURATION) ?
IR_MAX_DURATION : rawir.duration;
@@ -415,7 +404,7 @@ static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3)
udev = rr3->udev;
res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0x0000, 0x0000, data, sizeof(u8), HZ * 10);
+ 0x0000, 0x0000, data, sizeof(u8), 10000);
if (res < 0) {
dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d",
@@ -433,7 +422,7 @@ static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3)
static int redrat3_enable_detector(struct redrat3_dev *rr3)
{
struct device *dev = rr3->dev;
- u8 ret;
+ int ret;
ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3);
if (ret != 0)
@@ -491,7 +480,7 @@ static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
+ RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, 5000);
if (ret != len)
dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
else {
@@ -505,7 +494,7 @@ static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
return timeout;
}
-static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutns)
+static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutus)
{
struct redrat3_dev *rr3 = rc_dev->priv;
struct usb_device *udev = rr3->udev;
@@ -517,11 +506,11 @@ static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutns)
if (!timeout)
return -ENOMEM;
- *timeout = cpu_to_be32(redrat3_us_to_len(timeoutns / 1000));
+ *timeout = cpu_to_be32(redrat3_us_to_len(timeoutus));
ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout),
- HZ * 25);
+ 25000);
dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n",
be32_to_cpu(*timeout), ret);
@@ -553,32 +542,32 @@ static void redrat3_reset(struct redrat3_dev *rr3)
*val = 0x01;
rc = usb_control_msg(udev, rxpipe, RR3_RESET,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25);
+ RR3_CPUCS_REG_ADDR, 0, val, len, 25000);
dev_dbg(dev, "reset returned 0x%02x\n", rc);
*val = length_fuzz;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25);
+ RR3_IR_IO_LENGTH_FUZZ, 0, val, len, 25000);
dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
*val = (65536 - (minimum_pause * 2000)) / 256;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_MIN_PAUSE, 0, val, len, HZ * 25);
+ RR3_IR_IO_MIN_PAUSE, 0, val, len, 25000);
dev_dbg(dev, "set ir parm min pause %d rc 0x%02x\n", *val, rc);
*val = periods_measure_carrier;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_PERIODS_MF, 0, val, len, HZ * 25);
+ RR3_IR_IO_PERIODS_MF, 0, val, len, 25000);
dev_dbg(dev, "set ir parm periods measure carrier %d rc 0x%02x", *val,
rc);
*val = RR3_DRIVER_MAXLENS;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
- RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25);
+ RR3_IR_IO_MAX_LENGTHS, 0, val, len, 25000);
dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
kfree(val);
@@ -596,7 +585,7 @@ static void redrat3_get_firmware_rev(struct redrat3_dev *rr3)
rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0),
RR3_FW_VERSION,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5);
+ 0, 0, buffer, RR3_FW_VERSION_LEN, 5000);
if (rc >= 0)
dev_info(rr3->dev, "Firmware rev: %s", buffer);
@@ -836,14 +825,14 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress);
ret = usb_bulk_msg(rr3->udev, pipe, irdata,
- sendbuf_len, &ret_len, 10 * HZ);
+ sendbuf_len, &ret_len, 10000);
dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret);
/* now tell the hardware to transmit what we sent it */
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0, 0, irdata, 2, HZ * 10);
+ 0, 0, irdata, 2, 10000);
if (ret < 0)
dev_err(dev, "Error: control msg send failed, rc %d\n", ret);
@@ -951,21 +940,21 @@ static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys));
- rc->input_name = rr3->name;
+ rc->device_name = rr3->name;
rc->input_phys = rr3->phys;
usb_to_input_id(rr3->udev, &rc->input_id);
rc->dev.parent = dev;
rc->priv = rr3;
- rc->allowed_protocols = RC_BIT_ALL_IR_DECODER;
- rc->min_timeout = MS_TO_NS(RR3_RX_MIN_TIMEOUT);
- rc->max_timeout = MS_TO_NS(RR3_RX_MAX_TIMEOUT);
- rc->timeout = US_TO_NS(redrat3_get_timeout(rr3));
+ rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
+ rc->min_timeout = MS_TO_US(RR3_RX_MIN_TIMEOUT);
+ rc->max_timeout = MS_TO_US(RR3_RX_MAX_TIMEOUT);
+ rc->timeout = redrat3_get_timeout(rr3);
rc->s_timeout = redrat3_set_timeout;
rc->tx_ir = redrat3_transmit_ir;
rc->s_tx_carrier = redrat3_set_tx_carrier;
rc->s_carrier_report = redrat3_wideband_receiver;
rc->driver_name = DRIVER_NAME;
- rc->rx_resolution = US_TO_NS(2);
+ rc->rx_resolution = 2;
rc->map_name = RC_MAP_HAUPPAUGE;
ret = rc_register_device(rc);
@@ -1166,9 +1155,9 @@ static int redrat3_dev_resume(struct usb_interface *intf)
{
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
- if (usb_submit_urb(rr3->narrow_urb, GFP_ATOMIC))
+ if (usb_submit_urb(rr3->narrow_urb, GFP_NOIO))
return -EIO;
- if (usb_submit_urb(rr3->wide_urb, GFP_ATOMIC))
+ if (usb_submit_urb(rr3->wide_urb, GFP_NOIO))
return -EIO;
led_classdev_resume(&rr3->led);
return 0;
generated by cgit (git 2.34.1) at 2025-12-25 13:57:17 +0000