diff options
Diffstat (limited to 'drivers/media/IR/ir-jvc-decoder.c')
-rw-r--r-- | drivers/media/IR/ir-jvc-decoder.c | 91 |
1 files changed, 7 insertions, 84 deletions
diff --git a/drivers/media/IR/ir-jvc-decoder.c b/drivers/media/IR/ir-jvc-decoder.c index b1f935884d3..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, @@ -38,39 +34,6 @@ enum jvc_state { STATE_TRAILER_SPACE, }; -struct decoder_data { - struct list_head list; - struct ir_input_dev *ir_dev; - - /* 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; -} - /** * ir_jvc_decode() - Decode one JVC pulse or space * @input_dev: the struct input_dev descriptor of the device @@ -80,12 +43,8 @@ static struct decoder_data *get_decoder_data(struct ir_input_dev *ir_dev) */ 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); - - data = get_decoder_data(ir_dev); - if (!data) - return -EINVAL; + struct jvc_dec *data = &ir_dev->raw->jvc; if (!(ir_dev->raw->enabled_protocols & IR_TYPE_JVC)) return 0; @@ -140,9 +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); @@ -175,13 +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 { @@ -201,45 +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; - - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->ir_dev = ir_dev; - - 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; - - 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) |