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-rw-r--r--drivers/media/rc/ir-lirc-codec.c104
-rw-r--r--drivers/media/rc/ir-mce_kbd-decoder.c5
-rw-r--r--drivers/media/rc/lirc_dev.c13
-rw-r--r--drivers/media/rc/rc-core-priv.h3
-rw-r--r--drivers/media/rc/rc-main.c7
-rw-r--r--include/media/rc-core.h5
6 files changed, 122 insertions, 15 deletions
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index 52daac9bc470..817258c87b5c 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -88,6 +88,21 @@ void ir_lirc_raw_event(struct rc_dev *dev, struct ir_raw_event ev)
wake_up_poll(&dev->wait_poll, POLLIN | POLLRDNORM);
}
+/**
+ * ir_lirc_scancode_event() - Send scancode data to lirc to be relayed to
+ * userspace
+ * @dev: the struct rc_dev descriptor of the device
+ * @lsc: the struct lirc_scancode describing the decoded scancode
+ */
+void ir_lirc_scancode_event(struct rc_dev *dev, struct lirc_scancode *lsc)
+{
+ lsc->timestamp = ktime_get_ns();
+
+ if (kfifo_put(&dev->scancodes, *lsc))
+ wake_up_poll(&dev->wait_poll, POLLIN | POLLRDNORM);
+}
+EXPORT_SYMBOL_GPL(ir_lirc_scancode_event);
+
static int ir_lirc_open(struct inode *inode, struct file *file)
{
struct rc_dev *dev = container_of(inode->i_cdev, struct rc_dev,
@@ -114,6 +129,8 @@ static int ir_lirc_open(struct inode *inode, struct file *file)
if (dev->driver_type == RC_DRIVER_IR_RAW)
kfifo_reset_out(&dev->rawir);
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX)
+ kfifo_reset_out(&dev->scancodes);
dev->lirc_open++;
file->private_data = dev;
@@ -288,7 +305,7 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
switch (cmd) {
case LIRC_GET_FEATURES:
if (dev->driver_type == RC_DRIVER_IR_RAW) {
- val |= LIRC_CAN_REC_MODE2;
+ val |= LIRC_CAN_REC_MODE2 | LIRC_CAN_REC_SCANCODE;
if (dev->rx_resolution)
val |= LIRC_CAN_GET_REC_RESOLUTION;
}
@@ -323,15 +340,17 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
if (dev->driver_type == RC_DRIVER_IR_RAW_TX)
return -ENOTTY;
- val = LIRC_MODE_MODE2;
+ val = dev->rec_mode;
break;
case LIRC_SET_REC_MODE:
if (dev->driver_type == RC_DRIVER_IR_RAW_TX)
return -ENOTTY;
- if (val != LIRC_MODE_MODE2)
+ if (!(val == LIRC_MODE_MODE2 || val == LIRC_MODE_SCANCODE))
return -EINVAL;
+
+ dev->rec_mode = val;
return 0;
case LIRC_GET_SEND_MODE:
@@ -471,31 +490,31 @@ static unsigned int ir_lirc_poll(struct file *file,
poll_wait(file, &rcdev->wait_poll, wait);
- if (!rcdev->registered)
+ if (!rcdev->registered) {
events = POLLHUP | POLLERR;
- else if (rcdev->driver_type == RC_DRIVER_IR_RAW &&
- !kfifo_is_empty(&rcdev->rawir))
- events = POLLIN | POLLRDNORM;
+ } else if (rcdev->driver_type != RC_DRIVER_IR_RAW_TX) {
+ if (rcdev->rec_mode == LIRC_MODE_SCANCODE &&
+ !kfifo_is_empty(&rcdev->scancodes))
+ events = POLLIN | POLLRDNORM;
+
+ if (rcdev->rec_mode == LIRC_MODE_MODE2 &&
+ !kfifo_is_empty(&rcdev->rawir))
+ events = POLLIN | POLLRDNORM;
+ }
return events;
}
-static ssize_t ir_lirc_read(struct file *file, char __user *buffer,
- size_t length, loff_t *ppos)
+static ssize_t ir_lirc_read_mode2(struct file *file, char __user *buffer,
+ size_t length)
{
struct rc_dev *rcdev = file->private_data;
unsigned int copied;
int ret;
- if (rcdev->driver_type == RC_DRIVER_IR_RAW_TX)
- return -EINVAL;
-
if (length < sizeof(unsigned int) || length % sizeof(unsigned int))
return -EINVAL;
- if (!rcdev->registered)
- return -ENODEV;
-
do {
if (kfifo_is_empty(&rcdev->rawir)) {
if (file->f_flags & O_NONBLOCK)
@@ -523,6 +542,61 @@ static ssize_t ir_lirc_read(struct file *file, char __user *buffer,
return copied;
}
+static ssize_t ir_lirc_read_scancode(struct file *file, char __user *buffer,
+ size_t length)
+{
+ struct rc_dev *rcdev = file->private_data;
+ unsigned int copied;
+ int ret;
+
+ if (length < sizeof(struct lirc_scancode) ||
+ length % sizeof(struct lirc_scancode))
+ return -EINVAL;
+
+ do {
+ if (kfifo_is_empty(&rcdev->scancodes)) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ ret = wait_event_interruptible(rcdev->wait_poll,
+ !kfifo_is_empty(&rcdev->scancodes) ||
+ !rcdev->registered);
+ if (ret)
+ return ret;
+ }
+
+ if (!rcdev->registered)
+ return -ENODEV;
+
+ ret = mutex_lock_interruptible(&rcdev->lock);
+ if (ret)
+ return ret;
+ ret = kfifo_to_user(&rcdev->scancodes, buffer, length, &copied);
+ mutex_unlock(&rcdev->lock);
+ if (ret)
+ return ret;
+ } while (copied == 0);
+
+ return copied;
+}
+
+static ssize_t ir_lirc_read(struct file *file, char __user *buffer,
+ size_t length, loff_t *ppos)
+{
+ struct rc_dev *rcdev = file->private_data;
+
+ if (rcdev->driver_type == RC_DRIVER_IR_RAW_TX)
+ return -EINVAL;
+
+ if (!rcdev->registered)
+ return -ENODEV;
+
+ if (rcdev->rec_mode == LIRC_MODE_MODE2)
+ return ir_lirc_read_mode2(file, buffer, length);
+ else /* LIRC_MODE_SCANCODE */
+ return ir_lirc_read_scancode(file, buffer, length);
+}
+
const struct file_operations lirc_fops = {
.owner = THIS_MODULE,
.write = ir_lirc_transmit_ir,
diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c b/drivers/media/rc/ir-mce_kbd-decoder.c
index 48eef43b0530..ba3e42d67893 100644
--- a/drivers/media/rc/ir-mce_kbd-decoder.c
+++ b/drivers/media/rc/ir-mce_kbd-decoder.c
@@ -215,6 +215,7 @@ static int ir_mce_kbd_decode(struct rc_dev *dev, struct ir_raw_event ev)
struct mce_kbd_dec *data = &dev->raw->mce_kbd;
u32 scancode;
unsigned long delay;
+ struct lirc_scancode lsc = {};
if (!is_timing_event(ev)) {
if (ev.reset)
@@ -326,18 +327,22 @@ again:
mod_timer(&data->rx_timeout, jiffies + delay);
/* Pass data to keyboard buffer parser */
ir_mce_kbd_process_keyboard_data(data->idev, scancode);
+ lsc.rc_proto = RC_PROTO_MCIR2_KBD;
break;
case MCIR2_MOUSE_NBITS:
scancode = data->body & 0x1fffff;
IR_dprintk(1, "mouse data 0x%06x\n", scancode);
/* Pass data to mouse buffer parser */
ir_mce_kbd_process_mouse_data(data->idev, scancode);
+ lsc.rc_proto = RC_PROTO_MCIR2_MSE;
break;
default:
IR_dprintk(1, "not keyboard or mouse data\n");
goto out;
}
+ lsc.scancode = scancode;
+ ir_lirc_scancode_event(dev, &lsc);
data->state = STATE_INACTIVE;
input_event(data->idev, EV_MSC, MSC_SCAN, scancode);
input_sync(data->idev);
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 1670f86447b7..bf9367c29654 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -46,6 +46,8 @@ static void lirc_release_device(struct device *ld)
if (rcdev->driver_type == RC_DRIVER_IR_RAW)
kfifo_free(&rcdev->rawir);
+ if (rcdev->driver_type != RC_DRIVER_IR_RAW_TX)
+ kfifo_free(&rcdev->scancodes);
put_device(&rcdev->dev);
}
@@ -59,11 +61,20 @@ int ir_lirc_register(struct rc_dev *dev)
dev->lirc_dev.release = lirc_release_device;
dev->send_mode = LIRC_MODE_PULSE;
+ dev->rec_mode = LIRC_MODE_MODE2;
+
if (dev->driver_type == RC_DRIVER_IR_RAW) {
if (kfifo_alloc(&dev->rawir, MAX_IR_EVENT_SIZE, GFP_KERNEL))
return -ENOMEM;
}
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
+ if (kfifo_alloc(&dev->scancodes, 32, GFP_KERNEL)) {
+ kfifo_free(&dev->rawir);
+ return -ENOMEM;
+ }
+ }
+
init_waitqueue_head(&dev->wait_poll);
minor = ida_simple_get(&lirc_ida, 0, RC_DEV_MAX, GFP_KERNEL);
@@ -94,6 +105,8 @@ out_ida:
out_kfifo:
if (dev->driver_type == RC_DRIVER_IR_RAW)
kfifo_free(&dev->rawir);
+ if (dev->driver_type != RC_DRIVER_IR_RAW_TX)
+ kfifo_free(&dev->scancodes);
return err;
}
diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h
index a8ca6d7ff551..950de264666f 100644
--- a/drivers/media/rc/rc-core-priv.h
+++ b/drivers/media/rc/rc-core-priv.h
@@ -286,6 +286,7 @@ void ir_raw_init(void);
int lirc_dev_init(void);
void lirc_dev_exit(void);
void ir_lirc_raw_event(struct rc_dev *dev, struct ir_raw_event ev);
+void ir_lirc_scancode_event(struct rc_dev *dev, struct lirc_scancode *lsc);
int ir_lirc_register(struct rc_dev *dev);
void ir_lirc_unregister(struct rc_dev *dev);
@@ -295,6 +296,8 @@ static inline int lirc_dev_init(void) { return 0; }
static inline void lirc_dev_exit(void) {}
static inline void ir_lirc_raw_event(struct rc_dev *dev,
struct ir_raw_event ev) { }
+static inline void ir_lirc_scancode_event(struct rc_dev *dev,
+ struct lirc_scancode *lsc) { }
static inline int ir_lirc_register(struct rc_dev *dev) { return 0; }
static inline void ir_lirc_unregister(struct rc_dev *dev) { }
#endif
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 11350dafe838..347a1245fe8b 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -697,6 +697,13 @@ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol,
dev->last_protocol != protocol ||
dev->last_scancode != scancode ||
dev->last_toggle != toggle);
+ struct lirc_scancode sc = {
+ .scancode = scancode, .rc_proto = protocol,
+ .flags = toggle ? LIRC_SCANCODE_FLAG_TOGGLE : 0,
+ .keycode = keycode
+ };
+
+ ir_lirc_scancode_event(dev, &sc);
if (new_event && dev->keypressed)
ir_do_keyup(dev, false);
diff --git a/include/media/rc-core.h b/include/media/rc-core.h
index 9d636bb088e5..26204d9f7150 100644
--- a/include/media/rc-core.h
+++ b/include/media/rc-core.h
@@ -126,9 +126,12 @@ enum rc_filter_type {
* @gap: true if we're in a gap
* @send_timeout_reports: report timeouts in lirc raw IR.
* @rawir: queue for incoming raw IR
+ * @scancodes: queue for incoming decoded scancodes
* @wait_poll: poll struct for lirc device
* @send_mode: lirc mode for sending, either LIRC_MODE_SCANCODE or
* LIRC_MODE_PULSE
+ * @rec_mode: lirc mode for receiving, either LIRC_MODE_SCANCODE or
+ * LIRC_MODE_MODE2
* @registered: set to true by rc_register_device(), false by
* rc_unregister_device
* @change_protocol: allow changing the protocol used on hardware decoders
@@ -200,8 +203,10 @@ struct rc_dev {
bool gap;
bool send_timeout_reports;
DECLARE_KFIFO_PTR(rawir, unsigned int);
+ DECLARE_KFIFO_PTR(scancodes, struct lirc_scancode);
wait_queue_head_t wait_poll;
u8 send_mode;
+ u8 rec_mode;
#endif
bool registered;
int (*change_protocol)(struct rc_dev *dev, u64 *rc_proto);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 18:32:17 +0000