If the lirc device supports it, set the carrier for the protocol.

Signed-off-by: Sean Young <s...@mess.org>
---
 drivers/media/rc/ir-jvc-decoder.c     |  1 +
 drivers/media/rc/ir-lirc-codec.c      |  7 +++++++
 drivers/media/rc/ir-mce_kbd-decoder.c |  1 +
 drivers/media/rc/ir-nec-decoder.c     |  1 +
 drivers/media/rc/ir-rc5-decoder.c     |  1 +
 drivers/media/rc/ir-rc6-decoder.c     |  1 +
 drivers/media/rc/ir-sanyo-decoder.c   |  1 +
 drivers/media/rc/ir-sharp-decoder.c   |  1 +
 drivers/media/rc/ir-sony-decoder.c    |  1 +
 drivers/media/rc/rc-core-priv.h       |  1 +
 drivers/media/rc/rc-ir-raw.c          | 30 ++++++++++++++++++++++++++++++
 include/media/rc-core.h               |  1 +
 12 files changed, 47 insertions(+)

diff --git a/drivers/media/rc/ir-jvc-decoder.c 
b/drivers/media/rc/ir-jvc-decoder.c
index e2bd68c42edf..2ae20dfc0e61 100644
--- a/drivers/media/rc/ir-jvc-decoder.c
+++ b/drivers/media/rc/ir-jvc-decoder.c
@@ -212,6 +212,7 @@ static struct ir_raw_handler jvc_handler = {
        .protocols      = RC_PROTO_BIT_JVC,
        .decode         = ir_jvc_decode,
        .encode         = ir_jvc_encode,
+       .carrier        = 38000,
 };
 
 static int __init ir_jvc_decode_init(void)
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index ef0b8df88613..8db8ee403647 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -155,6 +155,13 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, 
const char __user *buf,
                for (i = 0; i < count; i++)
                        /* Convert from NS to US */
                        txbuf[i] = DIV_ROUND_UP(raw[i].duration, 1000);
+
+               if (dev->s_tx_carrier) {
+                       int carrier = ir_raw_encode_carrier(scan.rc_proto);
+
+                       if (carrier > 0)
+                               dev->s_tx_carrier(dev, carrier);
+               }
        } else {
                if (n < sizeof(unsigned int) || n % sizeof(unsigned int))
                        return -EINVAL;
diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c 
b/drivers/media/rc/ir-mce_kbd-decoder.c
index 7c572a643656..efa3b735dcc4 100644
--- a/drivers/media/rc/ir-mce_kbd-decoder.c
+++ b/drivers/media/rc/ir-mce_kbd-decoder.c
@@ -474,6 +474,7 @@ static struct ir_raw_handler mce_kbd_handler = {
        .encode         = ir_mce_kbd_encode,
        .raw_register   = ir_mce_kbd_register,
        .raw_unregister = ir_mce_kbd_unregister,
+       .carrier        = 36000,
 };
 
 static int __init ir_mce_kbd_decode_init(void)
diff --git a/drivers/media/rc/ir-nec-decoder.c 
b/drivers/media/rc/ir-nec-decoder.c
index 817c18f2ddd1..5380a9b23c07 100644
--- a/drivers/media/rc/ir-nec-decoder.c
+++ b/drivers/media/rc/ir-nec-decoder.c
@@ -259,6 +259,7 @@ static struct ir_raw_handler nec_handler = {
                                                        RC_PROTO_BIT_NEC32,
        .decode         = ir_nec_decode,
        .encode         = ir_nec_encode,
+       .carrier        = 38000,
 };
 
 static int __init ir_nec_decode_init(void)
diff --git a/drivers/media/rc/ir-rc5-decoder.c 
b/drivers/media/rc/ir-rc5-decoder.c
index 1292f534de43..cd1c4ee5fcd4 100644
--- a/drivers/media/rc/ir-rc5-decoder.c
+++ b/drivers/media/rc/ir-rc5-decoder.c
@@ -282,6 +282,7 @@ static struct ir_raw_handler rc5_handler = {
                                                        RC_PROTO_BIT_RC5_SZ,
        .decode         = ir_rc5_decode,
        .encode         = ir_rc5_encode,
+       .carrier        = 36000,
 };
 
 static int __init ir_rc5_decode_init(void)
diff --git a/drivers/media/rc/ir-rc6-decoder.c 
b/drivers/media/rc/ir-rc6-decoder.c
index 5d0d2fe3b7a7..665025303c28 100644
--- a/drivers/media/rc/ir-rc6-decoder.c
+++ b/drivers/media/rc/ir-rc6-decoder.c
@@ -408,6 +408,7 @@ static struct ir_raw_handler rc6_handler = {
                          RC_PROTO_BIT_RC6_MCE,
        .decode         = ir_rc6_decode,
        .encode         = ir_rc6_encode,
+       .carrier        = 36000,
 };
 
 static int __init ir_rc6_decode_init(void)
diff --git a/drivers/media/rc/ir-sanyo-decoder.c 
b/drivers/media/rc/ir-sanyo-decoder.c
index 758c60956850..723e7d75a593 100644
--- a/drivers/media/rc/ir-sanyo-decoder.c
+++ b/drivers/media/rc/ir-sanyo-decoder.c
@@ -218,6 +218,7 @@ static struct ir_raw_handler sanyo_handler = {
        .protocols      = RC_PROTO_BIT_SANYO,
        .decode         = ir_sanyo_decode,
        .encode         = ir_sanyo_encode,
+       .carrier        = 38000,
 };
 
 static int __init ir_sanyo_decode_init(void)
diff --git a/drivers/media/rc/ir-sharp-decoder.c 
b/drivers/media/rc/ir-sharp-decoder.c
index ed43a4212479..73174081e843 100644
--- a/drivers/media/rc/ir-sharp-decoder.c
+++ b/drivers/media/rc/ir-sharp-decoder.c
@@ -226,6 +226,7 @@ static struct ir_raw_handler sharp_handler = {
        .protocols      = RC_PROTO_BIT_SHARP,
        .decode         = ir_sharp_decode,
        .encode         = ir_sharp_encode,
+       .carrier        = 38000,
 };
 
 static int __init ir_sharp_decode_init(void)
diff --git a/drivers/media/rc/ir-sony-decoder.c 
b/drivers/media/rc/ir-sony-decoder.c
index a47ced763031..e4bcff21c025 100644
--- a/drivers/media/rc/ir-sony-decoder.c
+++ b/drivers/media/rc/ir-sony-decoder.c
@@ -221,6 +221,7 @@ static struct ir_raw_handler sony_handler = {
                                                        RC_PROTO_BIT_SONY20,
        .decode         = ir_sony_decode,
        .encode         = ir_sony_encode,
+       .carrier        = 40000,
 };
 
 static int __init ir_sony_decode_init(void)
diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h
index 43eabea9f152..3cf09408df6c 100644
--- a/drivers/media/rc/rc-core-priv.h
+++ b/drivers/media/rc/rc-core-priv.h
@@ -29,6 +29,7 @@ struct ir_raw_handler {
        int (*decode)(struct rc_dev *dev, struct ir_raw_event event);
        int (*encode)(enum rc_proto protocol, u32 scancode,
                      struct ir_raw_event *events, unsigned int max);
+       u32 carrier;
 
        /* These two should only be used by the lirc decoder */
        int (*raw_register)(struct rc_dev *dev);
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c
index 503bc425a187..0814e08a280b 100644
--- a/drivers/media/rc/rc-ir-raw.c
+++ b/drivers/media/rc/rc-ir-raw.c
@@ -492,6 +492,36 @@ static void edge_handle(unsigned long arg)
        ir_raw_event_handle(dev);
 }
 
+/**
+ * ir_raw_encode_carrier() - Get carrier used for protocol
+ *
+ * @protocol:          protocol
+ *
+ * Attempts to find the carrier for the specified protocol
+ *
+ * Returns:    The carrier in Hz
+ *             -EINVAL if the protocol is invalid, or if no
+ *             compatible encoder was found.
+ */
+int ir_raw_encode_carrier(enum rc_proto protocol)
+{
+       struct ir_raw_handler *handler;
+       int ret = -EINVAL;
+       u64 mask = BIT_ULL(protocol);
+
+       mutex_lock(&ir_raw_handler_lock);
+       list_for_each_entry(handler, &ir_raw_handler_list, list) {
+               if (handler->protocols & mask && handler->encode) {
+                       ret = handler->carrier;
+                       break;
+               }
+       }
+       mutex_unlock(&ir_raw_handler_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL(ir_raw_encode_carrier);
+
 /*
  * Used to (un)register raw event clients
  */
diff --git a/include/media/rc-core.h b/include/media/rc-core.h
index 314a1edb6189..ca48632ec8e2 100644
--- a/include/media/rc-core.h
+++ b/include/media/rc-core.h
@@ -309,6 +309,7 @@ int ir_raw_event_store_with_filter(struct rc_dev *dev,
 void ir_raw_event_set_idle(struct rc_dev *dev, bool idle);
 int ir_raw_encode_scancode(enum rc_proto protocol, u32 scancode,
                           struct ir_raw_event *events, unsigned int max);
+int ir_raw_encode_carrier(enum rc_proto protocol);
 
 static inline void ir_raw_event_reset(struct rc_dev *dev)
 {
-- 
2.13.6

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