The lirc bridge exists as a raw decoder. We would like to make the bridge
to also work for scancode drivers in further commits, so it cannot be
a raw decoder.
Note that rc-code, lirc_dev, ir-lirc-codec are now calling functions of
each other, so they've been merged into one module rc-core to avoid
circular dependencies.
Since ir-lirc-codec no longer exists as separate codec module, there is no
need for RC_DRIVER_IR_RAW_TX type drivers to call ir_raw_event_register().
Signed-off-by: Sean Young <s...@mess.org>
---
drivers/media/rc/Kconfig | 15 ++++++------
drivers/media/rc/Makefile | 6 ++---
drivers/media/rc/ir-lirc-codec.c | 38 ++++---------------------------
drivers/media/rc/lirc_dev.c | 22 +++---------------
drivers/media/rc/rc-core-priv.h | 24 +++++++++++++++++++-
drivers/media/rc/rc-ir-raw.c | 17 +++++---------
drivers/media/rc/rc-main.c | 49 ++++++++++++++++++++--------------------
7 files changed, 71 insertions(+), 100 deletions(-)
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index d0ddbd3..b2607c7 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -6,14 +6,8 @@ config RC_CORE
source "drivers/media/rc/keymaps/Kconfig"
-menuconfig RC_DECODERS
- bool "Remote controller decoders"
- depends on RC_CORE
- default y
-
-if RC_DECODERS
config LIRC
- tristate "LIRC interface driver"
+ bool "LIRC interface driver"
depends on RC_CORE
---help---
@@ -24,7 +18,7 @@ config LIRC
encoding for IR transmitting (aka "blasting").
config IR_LIRC_CODEC
- tristate "Enable IR to LIRC bridge"
+ bool "Enable IR to LIRC bridge"
depends on RC_CORE
depends on LIRC
default y
@@ -33,7 +27,12 @@ config IR_LIRC_CODEC
Enable this option to pass raw IR to and from userspace via
the LIRC interface.
+menuconfig RC_DECODERS
+ bool "Remote controller decoders"
+ depends on RC_CORE
+ default y
+if RC_DECODERS
config IR_NEC_DECODER
tristate "Enable IR raw decoder for the NEC protocol"
depends on RC_CORE
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index 938c98b..cbb2da0 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -1,9 +1,10 @@
-rc-core-objs := rc-main.o rc-ir-raw.o
obj-y += keymaps/
obj-$(CONFIG_RC_CORE) += rc-core.o
-obj-$(CONFIG_LIRC) += lirc_dev.o
+rc-core-y := rc-main.o rc-ir-raw.o
+rc-core-$(CONFIG_LIRC) += lirc_dev.o
+rc-core-$(CONFIG_IR_LIRC_CODEC) += ir-lirc-codec.o
obj-$(CONFIG_IR_NEC_DECODER) += ir-nec-decoder.o
obj-$(CONFIG_IR_RC5_DECODER) += ir-rc5-decoder.o
obj-$(CONFIG_IR_RC6_DECODER) += ir-rc6-decoder.o
@@ -12,7 +13,6 @@ obj-$(CONFIG_IR_SONY_DECODER) += ir-sony-decoder.o
obj-$(CONFIG_IR_SANYO_DECODER) += ir-sanyo-decoder.o
obj-$(CONFIG_IR_SHARP_DECODER) += ir-sharp-decoder.o
obj-$(CONFIG_IR_MCE_KBD_DECODER) += ir-mce_kbd-decoder.o
-obj-$(CONFIG_IR_LIRC_CODEC) += ir-lirc-codec.o
obj-$(CONFIG_IR_XMP_DECODER) += ir-xmp-decoder.o
# stand-alone IR receivers/transmitters
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index 9e41305..c3a2a6d 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -14,7 +14,6 @@
#include <linux/sched.h>
#include <linux/wait.h>
-#include <linux/module.h>
#include <media/lirc.h>
#include <media/lirc_dev.h>
#include <media/rc-core.h>
@@ -23,14 +22,14 @@
#define LIRCBUF_SIZE 256
/**
- * ir_lirc_decode() - Send raw IR data to lirc_dev to be relayed to the
- * lircd userspace daemon for decoding.
+ * ir_lirc_raw_event() - Send raw IR data to lirc to be relayed to userspace
+ *
* @input_dev: the struct rc_dev descriptor of the device
* @duration: the struct ir_raw_event descriptor of the pulse/space
*
* This function returns -EINVAL if the lirc interfaces aren't wired up.
*/
-static int ir_lirc_decode(struct rc_dev *dev, struct ir_raw_event ev)
+int ir_lirc_raw_event(struct rc_dev *dev, struct ir_raw_event ev)
{
struct lirc_codec *lirc = &dev->raw->lirc;
int sample;
@@ -342,7 +341,7 @@ static const struct file_operations lirc_fops = {
.llseek = no_llseek,
};
-static int ir_lirc_register(struct rc_dev *dev)
+int ir_lirc_register(struct rc_dev *dev)
{
struct lirc_driver *drv;
struct lirc_buffer *rbuf;
@@ -418,7 +417,7 @@ static int ir_lirc_register(struct rc_dev *dev)
return rc;
}
-static int ir_lirc_unregister(struct rc_dev *dev)
+int ir_lirc_unregister(struct rc_dev *dev)
{
struct lirc_codec *lirc = &dev->raw->lirc;
@@ -430,30 +429,3 @@ static int ir_lirc_unregister(struct rc_dev *dev)
return 0;
}
-static struct ir_raw_handler lirc_handler = {
- .protocols = 0,
- .decode = ir_lirc_decode,
- .raw_register = ir_lirc_register,
- .raw_unregister = ir_lirc_unregister,
-};
-
-static int __init ir_lirc_codec_init(void)
-{
- ir_raw_handler_register(&lirc_handler);
-
- printk(KERN_INFO "IR LIRC bridge handler initialized\n");
- return 0;
-}
-
-static void __exit ir_lirc_codec_exit(void)
-{
- ir_raw_handler_unregister(&lirc_handler);
-}
-
-module_init(ir_lirc_codec_init);
-module_exit(ir_lirc_codec_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jarod Wilson <ja...@redhat.com>");
-MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
-MODULE_DESCRIPTION("LIRC IR handler bridge");
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 7f5d109..5884f0e 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -37,12 +37,10 @@
#include <linux/device.h>
#include <linux/cdev.h>
-#include <media/rc-core.h>
+#include "rc-core-priv.h"
#include <media/lirc.h>
#include <media/lirc_dev.h>
-static bool debug;
-
#define IRCTL_DEV_NAME "BaseRemoteCtl"
#define NOPLUG -1
#define LOGHEAD "lirc_dev (%s[%d]): "
@@ -763,7 +761,7 @@ ssize_t lirc_dev_fop_write(struct file *file, const char
__user *buffer,
EXPORT_SYMBOL(lirc_dev_fop_write);
-static int __init lirc_dev_init(void)
+int __init lirc_dev_init(void)
{
int retval;
@@ -781,28 +779,14 @@ static int __init lirc_dev_init(void)
return retval;
}
-
pr_info("IR Remote Control driver registered, major %d\n",
MAJOR(lirc_base_dev));
return 0;
}
-
-
-static void __exit lirc_dev_exit(void)
+void __exit lirc_dev_exit(void)
{
class_destroy(lirc_class);
unregister_chrdev_region(lirc_base_dev, MAX_IRCTL_DEVICES);
- pr_info("module unloaded\n");
}
-
-module_init(lirc_dev_init);
-module_exit(lirc_dev_exit);
-
-MODULE_DESCRIPTION("LIRC base driver module");
-MODULE_AUTHOR("Artur Lipowski");
-MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debugging messages");
diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h
index a70a5c55..6819310 100644
--- a/drivers/media/rc/rc-core-priv.h
+++ b/drivers/media/rc/rc-core-priv.h
@@ -30,7 +30,7 @@ struct ir_raw_handler {
int (*encode)(enum rc_type protocol, u32 scancode,
struct ir_raw_event *events, unsigned int max);
- /* These two should only be used by the lirc decoder */
+ /* These two should only be used by the mce kbd decoder */
int (*raw_register)(struct rc_dev *dev);
int (*raw_unregister)(struct rc_dev *dev);
};
@@ -270,6 +270,28 @@ void ir_raw_handler_unregister(struct ir_raw_handler
*ir_raw_handler);
void ir_raw_init(void);
/*
+ * lirc interface bridge
+ */
+#ifdef CONFIG_IR_LIRC_CODEC
+int ir_lirc_raw_event(struct rc_dev *dev, struct ir_raw_event ev);
+int ir_lirc_register(struct rc_dev *dev);
+int ir_lirc_unregister(struct rc_dev *dev);
+#else
+static inline int ir_lirc_raw_event(struct rc_dev *dev,
+ struct ir_raw_event ev) { return 0; }
+static inline int ir_lirc_register(struct rc_dev *dev) { return 0; }
+static inline int ir_lirc_unregister(struct rc_dev *dev) { return 0; }
+#endif
+
+#ifdef CONFIG_LIRC
+int lirc_dev_init(void);
+void lirc_dev_exit(void);
+#else
+static inline int lirc_dev_init(void) { return 0; }
+static inline void lirc_dev_exit(void) {}
+#endif
+
+/*
* Decoder initialization code
*
* Those load logic are called during ir-core init, and automatically
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c
index 7fa84b6..2421258 100644
--- a/drivers/media/rc/rc-ir-raw.c
+++ b/drivers/media/rc/rc-ir-raw.c
@@ -40,6 +40,7 @@ static int ir_raw_event_thread(void *data)
if (raw->dev->enabled_protocols &
handler->protocols || !handler->protocols)
handler->decode(raw->dev, ev);
+ ir_lirc_raw_event(raw->dev, ev);
raw->prev_ev = ev;
}
mutex_unlock(&ir_raw_handler_lock);
@@ -502,18 +503,12 @@ int ir_raw_event_register(struct rc_dev *dev)
dev->change_protocol = change_protocol;
INIT_KFIFO(dev->raw->kfifo);
- /*
- * raw transmitters do not need any event registration
- * because the event is coming from userspace
- */
- if (dev->driver_type != RC_DRIVER_IR_RAW_TX) {
- dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
- "rc%u", dev->minor);
+ dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw,
+ "rc%u", dev->minor);
- if (IS_ERR(dev->raw->thread)) {
- rc = PTR_ERR(dev->raw->thread);
- goto out;
- }
+ if (IS_ERR(dev->raw->thread)) {
+ rc = PTR_ERR(dev->raw->thread);
+ goto out;
}
mutex_lock(&ir_raw_handler_lock);
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 075d7a9..b135365 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -903,23 +903,6 @@ struct rc_filter_attribute {
.mask = (_mask), \
}
-static bool lirc_is_present(void)
-{
-#if defined(CONFIG_LIRC_MODULE)
- struct module *lirc;
-
- mutex_lock(&module_mutex);
- lirc = find_module("lirc_dev");
- mutex_unlock(&module_mutex);
-
- return lirc ? true : false;
-#elif defined(CONFIG_LIRC)
- return true;
-#else
- return false;
-#endif
-}
-
/**
* show_protocols() - shows the current IR protocol(s)
* @device: the device descriptor
@@ -971,8 +954,10 @@ static ssize_t show_protocols(struct device *device,
allowed &= ~proto_names[i].type;
}
- if (dev->driver_type == RC_DRIVER_IR_RAW && lirc_is_present())
+#ifdef CONFIG_IR_LIRC_CODEC
+ if (dev->driver_type == RC_DRIVER_IR_RAW)
tmp += sprintf(tmp, "[lirc] ");
+#endif
if (tmp != buf)
tmp--;
@@ -1742,7 +1727,6 @@ static void rc_free_rx_device(struct rc_dev *dev)
int rc_register_device(struct rc_dev *dev)
{
- static bool raw_init; /* 'false' default value, raw decoders loaded? */
const char *path;
int attr = 0;
int minor;
@@ -1784,17 +1768,18 @@ int rc_register_device(struct rc_dev *dev)
goto out_dev;
}
- if (dev->driver_type == RC_DRIVER_IR_RAW ||
- dev->driver_type == RC_DRIVER_IR_RAW_TX) {
- if (!raw_init) {
- request_module_nowait("ir-lirc-codec");
- raw_init = true;
- }
+ if (dev->driver_type == RC_DRIVER_IR_RAW) {
rc = ir_raw_event_register(dev);
if (rc < 0)
goto out_rx;
}
+ if (dev->driver_type != RC_DRIVER_SCANCODE) {
+ rc = ir_lirc_register(dev);
+ if (rc < 0)
+ goto out_raw;
+ }
+
/* Allow the RC sysfs nodes to be accessible */
atomic_set(&dev->initialized, 1);
@@ -1804,6 +1789,9 @@ int rc_register_device(struct rc_dev *dev)
return 0;
+out_raw:
+ if (dev->driver_type == RC_DRIVER_IR_RAW)
+ ir_raw_event_unregister(dev);
out_rx:
rc_free_rx_device(dev);
out_dev:
@@ -1851,6 +1839,9 @@ void rc_unregister_device(struct rc_dev *dev)
if (dev->driver_type == RC_DRIVER_IR_RAW)
ir_raw_event_unregister(dev);
+ if (dev->driver_type != RC_DRIVER_SCANCODE)
+ ir_lirc_unregister(dev);
+
rc_free_rx_device(dev);
device_del(&dev->dev);
@@ -1875,6 +1866,13 @@ static int __init rc_core_init(void)
return rc;
}
+ rc = lirc_dev_init();
+ if (rc) {
+ pr_err("rc_core: unable to init lirc\n");
+ class_unregister(&rc_class);
+ return 0;
+ }
+
led_trigger_register_simple("rc-feedback", &led_feedback);
rc_map_register(&empty_map);
@@ -1883,6 +1881,7 @@ static int __init rc_core_init(void)
static void __exit rc_core_exit(void)
{
+ lirc_dev_exit();
class_unregister(&rc_class);
led_trigger_unregister_simple(led_feedback);
rc_map_unregister(&empty_map);
--
2.9.3
--
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