diff options
Diffstat (limited to 'drivers/media/IR/ir-sony-decoder.c')
| -rw-r--r-- | drivers/media/IR/ir-sony-decoder.c | 155 |
1 files changed, 12 insertions, 143 deletions
diff --git a/drivers/media/IR/ir-sony-decoder.c b/drivers/media/IR/ir-sony-decoder.c index 9f440c5c060d..b9074f07c7a0 100644 --- a/drivers/media/IR/ir-sony-decoder.c +++ b/drivers/media/IR/ir-sony-decoder.c @@ -23,10 +23,6 @@ #define SONY_BIT_SPACE (1 * SONY_UNIT) #define SONY_TRAILER_SPACE (10 * SONY_UNIT) /* minimum */ -/* Used to register sony_decoder clients */ -static LIST_HEAD(decoder_list); -static DEFINE_SPINLOCK(decoder_lock); - enum sony_state { STATE_INACTIVE, STATE_HEADER_SPACE, @@ -35,84 +31,6 @@ enum sony_state { STATE_FINISHED, }; -struct decoder_data { - struct list_head list; - struct ir_input_dev *ir_dev; - int enabled:1; - - /* State machine control */ - enum sony_state state; - u32 sony_bits; - unsigned count; -}; - - -/** - * 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 = "sony_decoder", - .attrs = decoder_attributes, -}; - /** * ir_sony_decode() - Decode one Sony pulse or space * @input_dev: the struct input_dev descriptor of the device @@ -122,16 +40,12 @@ static struct attribute_group decoder_attribute_group = { */ static int ir_sony_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 sony_dec *data = &ir_dev->raw->sony; u32 scancode; u8 device, subdevice, function; - data = get_decoder_data(ir_dev); - if (!data) - return -EINVAL; - - if (!data->enabled) + if (!(ir_dev->raw->enabled_protocols & IR_TYPE_SONY)) return 0; if (IS_RESET(ev)) { @@ -172,9 +86,9 @@ static int ir_sony_decode(struct input_dev *input_dev, struct ir_raw_event ev) if (!ev.pulse) break; - data->sony_bits <<= 1; + data->bits <<= 1; if (eq_margin(ev.duration, SONY_BIT_1_PULSE, SONY_UNIT / 2)) - data->sony_bits |= 1; + data->bits |= 1; else if (!eq_margin(ev.duration, SONY_BIT_0_PULSE, SONY_UNIT / 2)) break; @@ -208,19 +122,19 @@ static int ir_sony_decode(struct input_dev *input_dev, struct ir_raw_event ev) switch (data->count) { case 12: - device = bitrev8((data->sony_bits << 3) & 0xF8); + device = bitrev8((data->bits << 3) & 0xF8); subdevice = 0; - function = bitrev8((data->sony_bits >> 4) & 0xFE); + function = bitrev8((data->bits >> 4) & 0xFE); break; case 15: - device = bitrev8((data->sony_bits >> 0) & 0xFF); + device = bitrev8((data->bits >> 0) & 0xFF); subdevice = 0; - function = bitrev8((data->sony_bits >> 7) & 0xFD); + function = bitrev8((data->bits >> 7) & 0xFD); break; case 20: - device = bitrev8((data->sony_bits >> 5) & 0xF8); - subdevice = bitrev8((data->sony_bits >> 0) & 0xFF); - function = bitrev8((data->sony_bits >> 12) & 0xFE); + device = bitrev8((data->bits >> 5) & 0xF8); + subdevice = bitrev8((data->bits >> 0) & 0xFF); + function = bitrev8((data->bits >> 12) & 0xFE); break; default: IR_dprintk(1, "Sony invalid bitcount %u\n", data->count); @@ -241,54 +155,9 @@ out: return -EINVAL; } -static int ir_sony_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_sony_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 sony_handler = { + .protocols = IR_TYPE_SONY, .decode = ir_sony_decode, - .raw_register = ir_sony_register, - .raw_unregister = ir_sony_unregister, }; static int __init ir_sony_decode_init(void) |
