This patch adds sample support for reading/writing the wakeup scancodes
to rc-loopback device driver.
Signed-off-by: Antti Seppälä <a.sepp...@gmail.com>
---
drivers/media/rc/rc-loopback.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
index 53d0282..46e76ad 100644
--- a/drivers/media/rc/rc-loopback.c
+++ b/drivers/media/rc/rc-loopback.c
@@ -26,6 +26,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <media/rc-core.h>
#define DRIVER_NAME "rc-loopback"
@@ -45,6 +46,7 @@ struct loopback_dev {
bool carrierreport;
u32 rxcarriermin;
u32 rxcarriermax;
+ u32 wakeup_scancode;
};
static struct loopback_dev loopdev;
@@ -176,6 +178,41 @@ static int loop_set_carrier_report(struct rc_dev *dev, int
enable)
return 0;
}
+static int loop_wakeup_codes(struct rc_dev *dev,
+ struct list_head *wakeup_code_list, int write)
+{
+ u32 value = 0;
+ struct rc_wakeup_code *code;
+ struct loopback_dev *lodev = dev->priv;
+
+ dprintk("%sing wakeup codes\n", write ? "writ" : "read");
+
+ if (write) {
+ code = list_first_entry_or_null(wakeup_code_list,
+ struct rc_wakeup_code,
+ list_item);
+ if (code)
+ value = code->value;
+
+ if (dev->enabled_wake_protos & RC_BIT_RC5) {
+ if (value > 0xFFF)
+ return -EINVAL;
+ } else if (dev->enabled_wake_protos & RC_BIT_RC6_0) {
+ if (value > 0xFFFF)
+ return -EINVAL;
+ }
+
+ lodev->wakeup_scancode = value;
+ } else {
+ code = kmalloc(sizeof(struct rc_wakeup_code), GFP_KERNEL);
+ if (!code)
+ return -ENOMEM;
+ code->value = lodev->wakeup_scancode;
+ list_add_tail(&code->list_item, wakeup_code_list);
+ }
+ return 0;
+}
+
static int __init loop_init(void)
{
struct rc_dev *rc;
@@ -196,6 +233,8 @@ static int __init loop_init(void)
rc->priv = &loopdev;
rc->driver_type = RC_DRIVER_IR_RAW;
rc->allowed_protos = RC_BIT_ALL;
+ rc->allowed_wake_protos = RC_BIT_RC6_0 | RC_BIT_RC5;
+ rc->enabled_wake_protos = RC_BIT_RC6_0;
rc->timeout = 100 * 1000 * 1000; /* 100 ms */
rc->min_timeout = 1;
rc->max_timeout = UINT_MAX;
@@ -209,6 +248,7 @@ static int __init loop_init(void)
rc->s_idle = loop_set_idle;
rc->s_learning_mode = loop_set_learning_mode;
rc->s_carrier_report = loop_set_carrier_report;
+ rc->s_wakeup_codes = loop_wakeup_codes;
loopdev.txmask = RXMASK_REGULAR;
loopdev.txcarrier = 36000;
--
1.8.3.2
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