Especially when IR needs to do polling, it generates lots of wakeups per
second. This makes no sense, if the input event device is closed.
Adds a callback handler to the IR hardware driver, to allow registering
an open/close ops.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index f25193c..db54562 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -445,6 +445,19 @@ void ir_keydown(struct input_dev *dev, int scancode)
}
EXPORT_SYMBOL_GPL(ir_keydown);
+static int ir_open(struct input_dev *input_dev)
+{
+ struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+
+ return ir_dev->props->open(ir_dev->props->priv);
+}
+
+static void ir_close(struct input_dev *input_dev)
+{
+ struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+
+ ir_dev->props->close(ir_dev->props->priv);
+}
/**
* ir_input_register() - sets the IR keycode table and add the handlers
@@ -494,6 +507,10 @@ int ir_input_register(struct input_dev *input_dev,
ir_copy_table(&ir_dev->rc_tab, rc_tab);
ir_dev->props = props;
+ if (props && props->open)
+ input_dev->open = ir_open;
+ if (props && props->close)
+ input_dev->close = ir_close;
/* set the bits for the keys */
IR_dprintk(1, "key map size: %d\n", rc_tab->size);
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index a7ad781..68cda10 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -1227,7 +1227,7 @@ static int saa7134_resume(struct pci_dev *pci_dev)
if (card_has_mpeg(dev))
saa7134_ts_init_hw(dev);
if (dev->remote)
- saa7134_ir_start(dev, dev->remote);
+ saa7134_ir_start(dev);
saa7134_hw_enable1(dev);
msleep(100);
diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c
index a42c953..9e2b32c 100644
--- a/drivers/media/video/saa7134/saa7134-input.c
+++ b/drivers/media/video/saa7134/saa7134-input.c
@@ -399,7 +399,14 @@ static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
void saa7134_input_irq(struct saa7134_dev *dev)
{
- struct card_ir *ir = dev->remote;
+ struct card_ir *ir;
+
+ if (!dev || !dev->remote)
+ return;
+
+ ir = dev->remote;
+ if (!ir->running)
+ return;
if (ir->nec_gpio) {
saa7134_nec_irq(dev);
@@ -431,10 +438,20 @@ void ir_raw_decode_timer_end(unsigned long data)
ir->active = 0;
}
-void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
+static int __saa7134_ir_start(void *priv)
{
+ struct saa7134_dev *dev = priv;
+ struct card_ir *ir;
+
+ if (!dev)
+ return -EINVAL;
+
+ ir = dev->remote;
+ if (!ir)
+ return -EINVAL;
+
if (ir->running)
- return;
+ return 0;
ir->running = 1;
if (ir->polling) {
@@ -466,11 +483,21 @@ void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
ir->timer_end.data = (unsigned long)dev;
ir->active = 0;
}
+
+ return 0;
}
-void saa7134_ir_stop(struct saa7134_dev *dev)
+static void __saa7134_ir_stop(void *priv)
{
- struct card_ir *ir = dev->remote;
+ struct saa7134_dev *dev = priv;
+ struct card_ir *ir;
+
+ if (!dev)
+ return;
+
+ ir = dev->remote;
+ if (!ir)
+ return;
if (!ir->running)
return;
@@ -486,8 +513,42 @@ void saa7134_ir_stop(struct saa7134_dev *dev)
}
ir->running = 0;
+
+ return;
}
+int saa7134_ir_start(struct saa7134_dev *dev)
+{
+ if (dev->remote->users)
+ return __saa7134_ir_start(dev);
+
+ return 0;
+}
+
+void saa7134_ir_stop(struct saa7134_dev *dev)
+{
+ if (dev->remote->users)
+ __saa7134_ir_stop(dev);
+}
+
+static int saa7134_ir_open(void *priv)
+{
+ struct saa7134_dev *dev = priv;
+
+ dev->remote->users++;
+ return __saa7134_ir_start(dev);
+}
+
+static void saa7134_ir_close(void *priv)
+{
+ struct saa7134_dev *dev = priv;
+
+ dev->remote->users--;
+ if (!dev->remote->users)
+ __saa7134_ir_stop(dev);
+}
+
+
int saa7134_ir_change_protocol(void *priv, u64 ir_type)
{
struct saa7134_dev *dev = priv;
@@ -512,7 +573,7 @@ int saa7134_ir_change_protocol(void *priv, u64 ir_type)
saa7134_ir_stop(dev);
ir->nec_gpio = nec_gpio;
ir->rc5_gpio = rc5_gpio;
- saa7134_ir_start(dev, ir);
+ saa7134_ir_start(dev);
} else {
ir->nec_gpio = nec_gpio;
ir->rc5_gpio = rc5_gpio;
@@ -787,9 +848,13 @@ int saa7134_input_init1(struct saa7134_dev *dev)
snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
pci_name(dev->pci));
+
+ ir->props.priv = dev;
+ ir->props.open = saa7134_ir_open;
+ ir->props.close = saa7134_ir_close;
+
if (ir_codes->ir_type != IR_TYPE_OTHER && !raw_decode) {
ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
- ir->props.priv = dev;
ir->props.change_protocol = saa7134_ir_change_protocol;
/* Set IR protocol */
@@ -814,25 +879,21 @@ int saa7134_input_init1(struct saa7134_dev *dev)
err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
if (err)
- goto err_out_stop;
+ goto err_out_free;
if (ir_codes->ir_type != IR_TYPE_OTHER) {
err = ir_raw_event_register(ir->dev);
if (err)
- goto err_out_stop;
+ goto err_out_free;
}
- saa7134_ir_start(dev, ir);
-
/* the remote isn't as bouncy as a keyboard */
ir->dev->rep[REP_DELAY] = repeat_delay;
ir->dev->rep[REP_PERIOD] = repeat_period;
return 0;
- err_out_stop:
- saa7134_ir_stop(dev);
+err_out_free:
dev->remote = NULL;
- err_out_free:
kfree(ir);
return err;
}
diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index c3a1ae0..cad8aee 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -20,7 +20,7 @@
*/
#include <linux/version.h>
-#define SAA7134_VERSION_CODE KERNEL_VERSION(0,2,15)
+#define SAA7134_VERSION_CODE KERNEL_VERSION(0, 2, 16)
#include <linux/pci.h>
#include <linux/i2c.h>
@@ -810,7 +810,7 @@ int saa7134_input_init1(struct saa7134_dev *dev);
void saa7134_input_fini(struct saa7134_dev *dev);
void saa7134_input_irq(struct saa7134_dev *dev);
void saa7134_probe_i2c_ir(struct saa7134_dev *dev);
-void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir);
+int saa7134_ir_start(struct saa7134_dev *dev);
void saa7134_ir_stop(struct saa7134_dev *dev);
diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 87f2ec7..e403a9a 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -50,6 +50,7 @@ struct card_ir {
struct ir_input_state ir;
char name[32];
char phys[32];
+ int users;
u32 running:1;
struct ir_dev_props props;
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index c704fa7..9a2f308 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -56,6 +56,8 @@ struct ir_dev_props {
unsigned long allowed_protos;
void *priv;
int (*change_protocol)(void *priv, u64 ir_type);
+ int (*open)(void *priv);
+ void (*close)(void *priv);
};
struct ir_raw_event {
--
1.6.6.1
--
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