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 | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
index 53d0282..12bd1c5 100644
--- a/drivers/media/rc/rc-loopback.c
+++ b/drivers/media/rc/rc-loopback.c
@@ -26,12 +26,14 @@
#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"
#define dprintk(x...) if (debug) printk(KERN_INFO DRIVER_NAME ": " x)
#define RXMASK_REGULAR 0x1
#define RXMASK_LEARNING 0x2
+#define WAKE_CODE_LEN 0xF
static bool debug;
@@ -45,6 +47,7 @@ struct loopback_dev {
bool carrierreport;
u32 rxcarriermin;
u32 rxcarriermax;
+ u8 wake_codes[WAKE_CODE_LEN];
};
static struct loopback_dev loopdev;
@@ -176,6 +179,33 @@ static int loop_set_carrier_report(struct rc_dev *dev, int
enable)
return 0;
}
+static int loop_wakeup_scancodes(struct rc_dev *dev,
+ struct list_head *scancode_list, int write)
+{
+ int i = 0;
+ struct rc_wakeup_scancode *scancode;
+ struct loopback_dev *lodev = dev->priv;
+
+ dprintk("%sing wakeup scancodes\n", write ? "writ" : "read");
+
+ if (write) {
+ list_for_each_entry_reverse(scancode, scancode_list,
+ list_item) {
+ lodev->wake_codes[i] = scancode->value;
+ if (++i > WAKE_CODE_LEN)
+ return -EINVAL;
+ }
+ } else {
+ for (i = 0; i < WAKE_CODE_LEN; i++) {
+ scancode = kmalloc(sizeof(struct rc_wakeup_scancode),
+ GFP_KERNEL);
+ scancode->value = lodev->wake_codes[i];
+ list_add(&scancode->list_item, scancode_list);
+ }
+ }
+ return 0;
+}
+
static int __init loop_init(void)
{
struct rc_dev *rc;
@@ -209,6 +239,7 @@ 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_scancodes = loop_wakeup_scancodes;
loopdev.txmask = RXMASK_REGULAR;
loopdev.txcarrier = 36000;
--
1.8.3.2
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