diff options
| -rw-r--r-- | drivers/media/rc/img-ir/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/media/rc/img-ir/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir-hw.c | 4 | ||||
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir-sanyo.c | 122 |
4 files changed, 134 insertions, 0 deletions
diff --git a/drivers/media/rc/img-ir/Kconfig b/drivers/media/rc/img-ir/Kconfig index 48627f9741be..03ba9fc170fb 100644 --- a/drivers/media/rc/img-ir/Kconfig +++ b/drivers/media/rc/img-ir/Kconfig @@ -52,3 +52,10 @@ config IR_IMG_SHARP help Say Y here to enable support for the Sharp protocol in the ImgTec infrared decoder block. + +config IR_IMG_SANYO + bool "Sanyo protocol support" + depends on IR_IMG_HW + help + Say Y here to enable support for the Sanyo protocol (used by Sanyo, + Aiwa, Chinon remotes) in the ImgTec infrared decoder block. diff --git a/drivers/media/rc/img-ir/Makefile b/drivers/media/rc/img-ir/Makefile index 792a3c4bc38f..92a459d99509 100644 --- a/drivers/media/rc/img-ir/Makefile +++ b/drivers/media/rc/img-ir/Makefile @@ -5,6 +5,7 @@ img-ir-$(CONFIG_IR_IMG_NEC) += img-ir-nec.o img-ir-$(CONFIG_IR_IMG_JVC) += img-ir-jvc.o img-ir-$(CONFIG_IR_IMG_SONY) += img-ir-sony.o img-ir-$(CONFIG_IR_IMG_SHARP) += img-ir-sharp.o +img-ir-$(CONFIG_IR_IMG_SANYO) += img-ir-sanyo.o img-ir-objs := $(img-ir-y) obj-$(CONFIG_IR_IMG) += img-ir.o diff --git a/drivers/media/rc/img-ir/img-ir-hw.c b/drivers/media/rc/img-ir/img-ir-hw.c index 9931dfaeb6ad..cbbfd7df649f 100644 --- a/drivers/media/rc/img-ir/img-ir-hw.c +++ b/drivers/media/rc/img-ir/img-ir-hw.c @@ -24,6 +24,7 @@ extern struct img_ir_decoder img_ir_nec; extern struct img_ir_decoder img_ir_jvc; extern struct img_ir_decoder img_ir_sony; extern struct img_ir_decoder img_ir_sharp; +extern struct img_ir_decoder img_ir_sanyo; static bool img_ir_decoders_preprocessed; static struct img_ir_decoder *img_ir_decoders[] = { @@ -39,6 +40,9 @@ static struct img_ir_decoder *img_ir_decoders[] = { #ifdef CONFIG_IR_IMG_SHARP &img_ir_sharp, #endif +#ifdef CONFIG_IR_IMG_SANYO + &img_ir_sanyo, +#endif NULL }; diff --git a/drivers/media/rc/img-ir/img-ir-sanyo.c b/drivers/media/rc/img-ir/img-ir-sanyo.c new file mode 100644 index 000000000000..c2c763e08a41 --- /dev/null +++ b/drivers/media/rc/img-ir/img-ir-sanyo.c @@ -0,0 +1,122 @@ +/* + * ImgTec IR Decoder setup for Sanyo protocol. + * + * Copyright 2012-2014 Imagination Technologies Ltd. + * + * From ir-sanyo-decoder.c: + * + * This protocol uses the NEC protocol timings. However, data is formatted as: + * 13 bits Custom Code + * 13 bits NOT(Custom Code) + * 8 bits Key data + * 8 bits NOT(Key data) + * + * According with LIRC, this protocol is used on Sanyo, Aiwa and Chinon + * Information for this protocol is available at the Sanyo LC7461 datasheet. + */ + +#include "img-ir-hw.h" + +/* Convert Sanyo data to a scancode */ +static int img_ir_sanyo_scancode(int len, u64 raw, int *scancode, u64 protocols) +{ + unsigned int addr, addr_inv, data, data_inv; + /* a repeat code has no data */ + if (!len) + return IMG_IR_REPEATCODE; + if (len != 42) + return -EINVAL; + addr = (raw >> 0) & 0x1fff; + addr_inv = (raw >> 13) & 0x1fff; + data = (raw >> 26) & 0xff; + data_inv = (raw >> 34) & 0xff; + /* Validate data */ + if ((data_inv ^ data) != 0xff) + return -EINVAL; + /* Validate address */ + if ((addr_inv ^ addr) != 0x1fff) + return -EINVAL; + + /* Normal Sanyo */ + *scancode = addr << 8 | data; + return IMG_IR_SCANCODE; +} + +/* Convert Sanyo scancode to Sanyo data filter */ +static int img_ir_sanyo_filter(const struct rc_scancode_filter *in, + struct img_ir_filter *out, u64 protocols) +{ + unsigned int addr, addr_inv, data, data_inv; + unsigned int addr_m, data_m; + + data = in->data & 0xff; + data_m = in->mask & 0xff; + data_inv = data ^ 0xff; + + if (in->data & 0xff700000) + return -EINVAL; + + addr = (in->data >> 8) & 0x1fff; + addr_m = (in->mask >> 8) & 0x1fff; + addr_inv = addr ^ 0x1fff; + + out->data = (u64)data_inv << 34 | + (u64)data << 26 | + addr_inv << 13 | + addr; + out->mask = (u64)data_m << 34 | + (u64)data_m << 26 | + addr_m << 13 | + addr_m; + return 0; +} + +/* Sanyo decoder */ +struct img_ir_decoder img_ir_sanyo = { + .type = RC_BIT_SANYO, + .control = { + .decoden = 1, + .code_type = IMG_IR_CODETYPE_PULSEDIST, + }, + /* main timings */ + .unit = 562500, /* 562.5 us */ + .timings = { + /* leader symbol */ + .ldr = { + .pulse = { 16 /* 9ms */ }, + .space = { 8 /* 4.5ms */ }, + }, + /* 0 symbol */ + .s00 = { + .pulse = { 1 /* 562.5 us */ }, + .space = { 1 /* 562.5 us */ }, + }, + /* 1 symbol */ + .s01 = { + .pulse = { 1 /* 562.5 us */ }, + .space = { 3 /* 1687.5 us */ }, + }, + /* free time */ + .ft = { + .minlen = 42, + .maxlen = 42, + .ft_min = 10, /* 5.625 ms */ + }, + }, + /* repeat codes */ + .repeat = 108, /* 108 ms */ + .rtimings = { + /* leader symbol */ + .ldr = { + .space = { 4 /* 2.25 ms */ }, + }, + /* free time */ + .ft = { + .minlen = 0, /* repeat code has no data */ + .maxlen = 0, + }, + }, + /* scancode logic */ + .scancode = img_ir_sanyo_scancode, + .filter = img_ir_sanyo_filter, +}; |