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path: root/drivers/media/IR/ir-jvc-decoder.c
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Diffstat (limited to 'drivers/media/IR/ir-jvc-decoder.c')
-rw-r--r--drivers/media/IR/ir-jvc-decoder.c152
1 files changed, 9 insertions, 143 deletions
diff --git a/drivers/media/IR/ir-jvc-decoder.c b/drivers/media/IR/ir-jvc-decoder.c
index 0b804944cbb..8894d8b3604 100644
--- a/drivers/media/IR/ir-jvc-decoder.c
+++ b/drivers/media/IR/ir-jvc-decoder.c
@@ -25,10 +25,6 @@
#define JVC_TRAILER_PULSE (1 * JVC_UNIT)
#define JVC_TRAILER_SPACE (35 * JVC_UNIT)
-/* Used to register jvc_decoder clients */
-static LIST_HEAD(decoder_list);
-DEFINE_SPINLOCK(decoder_lock);
-
enum jvc_state {
STATE_INACTIVE,
STATE_HEADER_SPACE,
@@ -38,87 +34,6 @@ enum jvc_state {
STATE_TRAILER_SPACE,
};
-struct decoder_data {
- struct list_head list;
- struct ir_input_dev *ir_dev;
- int enabled:1;
-
- /* State machine control */
- enum jvc_state state;
- u16 jvc_bits;
- u16 jvc_old_bits;
- unsigned count;
- bool first;
- bool toggle;
-};
-
-
-/**
- * get_decoder_data() - gets decoder data
- * @input_dev: input device
- *
- * Returns the struct decoder_data that corresponds to a device
- */
-static struct decoder_data *get_decoder_data(struct ir_input_dev *ir_dev)
-{
- struct decoder_data *data = NULL;
-
- spin_lock(&decoder_lock);
- list_for_each_entry(data, &decoder_list, list) {
- if (data->ir_dev == ir_dev)
- break;
- }
- spin_unlock(&decoder_lock);
- return data;
-}
-
-static ssize_t store_enabled(struct device *d,
- struct device_attribute *mattr,
- const char *buf,
- size_t len)
-{
- unsigned long value;
- struct ir_input_dev *ir_dev = dev_get_drvdata(d);
- struct decoder_data *data = get_decoder_data(ir_dev);
-
- if (!data)
- return -EINVAL;
-
- if (strict_strtoul(buf, 10, &value) || value > 1)
- return -EINVAL;
-
- data->enabled = value;
-
- return len;
-}
-
-static ssize_t show_enabled(struct device *d,
- struct device_attribute *mattr, char *buf)
-{
- struct ir_input_dev *ir_dev = dev_get_drvdata(d);
- struct decoder_data *data = get_decoder_data(ir_dev);
-
- if (!data)
- return -EINVAL;
-
- if (data->enabled)
- return sprintf(buf, "1\n");
- else
- return sprintf(buf, "0\n");
-}
-
-static DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR, show_enabled, store_enabled);
-
-static struct attribute *decoder_attributes[] = {
- &dev_attr_enabled.attr,
- NULL
-};
-
-static struct attribute_group decoder_attribute_group = {
- .name = "jvc_decoder",
- .attrs = decoder_attributes,
-};
-
/**
* ir_jvc_decode() - Decode one JVC pulse or space
* @input_dev: the struct input_dev descriptor of the device
@@ -128,14 +43,10 @@ static struct attribute_group decoder_attribute_group = {
*/
static int ir_jvc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
{
- struct decoder_data *data;
struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+ struct jvc_dec *data = &ir_dev->raw->jvc;
- data = get_decoder_data(ir_dev);
- if (!data)
- return -EINVAL;
-
- if (!data->enabled)
+ if (!(ir_dev->raw->enabled_protocols & IR_TYPE_JVC))
return 0;
if (IS_RESET(ev)) {
@@ -188,9 +99,9 @@ static int ir_jvc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
if (ev.pulse)
break;
- data->jvc_bits <<= 1;
+ data->bits <<= 1;
if (eq_margin(ev.duration, JVC_BIT_1_SPACE, JVC_UNIT / 2)) {
- data->jvc_bits |= 1;
+ data->bits |= 1;
decrease_duration(&ev, JVC_BIT_1_SPACE);
} else if (eq_margin(ev.duration, JVC_BIT_0_SPACE, JVC_UNIT / 2))
decrease_duration(&ev, JVC_BIT_0_SPACE);
@@ -223,13 +134,13 @@ static int ir_jvc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
if (data->first) {
u32 scancode;
- scancode = (bitrev8((data->jvc_bits >> 8) & 0xff) << 8) |
- (bitrev8((data->jvc_bits >> 0) & 0xff) << 0);
+ scancode = (bitrev8((data->bits >> 8) & 0xff) << 8) |
+ (bitrev8((data->bits >> 0) & 0xff) << 0);
IR_dprintk(1, "JVC scancode 0x%04x\n", scancode);
ir_keydown(input_dev, scancode, data->toggle);
data->first = false;
- data->jvc_old_bits = data->jvc_bits;
- } else if (data->jvc_bits == data->jvc_old_bits) {
+ data->old_bits = data->bits;
+ } else if (data->bits == data->old_bits) {
IR_dprintk(1, "JVC repeat\n");
ir_repeat(input_dev);
} else {
@@ -249,54 +160,9 @@ out:
return -EINVAL;
}
-static int ir_jvc_register(struct input_dev *input_dev)
-{
- struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
- struct decoder_data *data;
- int rc;
-
- rc = sysfs_create_group(&ir_dev->dev.kobj, &decoder_attribute_group);
- if (rc < 0)
- return rc;
-
- data = kzalloc(sizeof(*data), GFP_KERNEL);
- if (!data) {
- sysfs_remove_group(&ir_dev->dev.kobj, &decoder_attribute_group);
- return -ENOMEM;
- }
-
- data->ir_dev = ir_dev;
- data->enabled = 1;
-
- spin_lock(&decoder_lock);
- list_add_tail(&data->list, &decoder_list);
- spin_unlock(&decoder_lock);
-
- return 0;
-}
-
-static int ir_jvc_unregister(struct input_dev *input_dev)
-{
- struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
- static struct decoder_data *data;
-
- data = get_decoder_data(ir_dev);
- if (!data)
- return 0;
-
- sysfs_remove_group(&ir_dev->dev.kobj, &decoder_attribute_group);
-
- spin_lock(&decoder_lock);
- list_del(&data->list);
- spin_unlock(&decoder_lock);
-
- return 0;
-}
-
static struct ir_raw_handler jvc_handler = {
+ .protocols = IR_TYPE_JVC,
.decode = ir_jvc_decode,
- .raw_register = ir_jvc_register,
- .raw_unregister = ir_jvc_unregister,
};
static int __init ir_jvc_decode_init(void)