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-jvc.c | 92 |
4 files changed, 104 insertions, 0 deletions
diff --git a/drivers/media/rc/img-ir/Kconfig b/drivers/media/rc/img-ir/Kconfig index 28498a294daa..96006fbfb0d6 100644 --- a/drivers/media/rc/img-ir/Kconfig +++ b/drivers/media/rc/img-ir/Kconfig @@ -31,3 +31,10 @@ config IR_IMG_NEC help Say Y here to enable support for the NEC, extended NEC, and 32-bit NEC protocols in the ImgTec infrared decoder block. + +config IR_IMG_JVC + bool "JVC protocol support" + depends on IR_IMG_HW + help + Say Y here to enable support for the JVC protocol in the ImgTec + infrared decoder block. diff --git a/drivers/media/rc/img-ir/Makefile b/drivers/media/rc/img-ir/Makefile index c4091973b35d..c5f8f06c89eb 100644 --- a/drivers/media/rc/img-ir/Makefile +++ b/drivers/media/rc/img-ir/Makefile @@ -2,6 +2,7 @@ img-ir-y := img-ir-core.o img-ir-$(CONFIG_IR_IMG_RAW) += img-ir-raw.o img-ir-$(CONFIG_IR_IMG_HW) += img-ir-hw.o img-ir-$(CONFIG_IR_IMG_NEC) += img-ir-nec.o +img-ir-$(CONFIG_IR_IMG_JVC) += img-ir-jvc.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 139f2c70e382..81c50e3f88d9 100644 --- a/drivers/media/rc/img-ir/img-ir-hw.c +++ b/drivers/media/rc/img-ir/img-ir-hw.c @@ -21,12 +21,16 @@ static DEFINE_SPINLOCK(img_ir_decoders_lock); extern struct img_ir_decoder img_ir_nec; +extern struct img_ir_decoder img_ir_jvc; static bool img_ir_decoders_preprocessed; static struct img_ir_decoder *img_ir_decoders[] = { #ifdef CONFIG_IR_IMG_NEC &img_ir_nec, #endif +#ifdef CONFIG_IR_IMG_JVC + &img_ir_jvc, +#endif NULL }; diff --git a/drivers/media/rc/img-ir/img-ir-jvc.c b/drivers/media/rc/img-ir/img-ir-jvc.c new file mode 100644 index 000000000000..ae55867f6c5c --- /dev/null +++ b/drivers/media/rc/img-ir/img-ir-jvc.c @@ -0,0 +1,92 @@ +/* + * ImgTec IR Decoder setup for JVC protocol. + * + * Copyright 2012-2014 Imagination Technologies Ltd. + */ + +#include "img-ir-hw.h" + +/* Convert JVC data to a scancode */ +static int img_ir_jvc_scancode(int len, u64 raw, int *scancode, u64 protocols) +{ + unsigned int cust, data; + + if (len != 16) + return -EINVAL; + + cust = (raw >> 0) & 0xff; + data = (raw >> 8) & 0xff; + + *scancode = cust << 8 | data; + return IMG_IR_SCANCODE; +} + +/* Convert JVC scancode to JVC data filter */ +static int img_ir_jvc_filter(const struct rc_scancode_filter *in, + struct img_ir_filter *out, u64 protocols) +{ + unsigned int cust, data; + unsigned int cust_m, data_m; + + cust = (in->data >> 8) & 0xff; + cust_m = (in->mask >> 8) & 0xff; + data = (in->data >> 0) & 0xff; + data_m = (in->mask >> 0) & 0xff; + + out->data = cust | data << 8; + out->mask = cust_m | data_m << 8; + + return 0; +} + +/* + * JVC decoder + * See also http://www.sbprojects.com/knowledge/ir/jvc.php + * http://support.jvc.com/consumer/support/documents/RemoteCodes.pdf + */ +struct img_ir_decoder img_ir_jvc = { + .type = RC_BIT_JVC, + .control = { + .decoden = 1, + .code_type = IMG_IR_CODETYPE_PULSEDIST, + .decodend2 = 1, + }, + /* main timings */ + .unit = 527500, /* 527.5 us */ + .timings = { + /* leader symbol */ + .ldr = { + .pulse = { 16 /* 8.44 ms */ }, + .space = { 8 /* 4.22 ms */ }, + }, + /* 0 symbol */ + .s00 = { + .pulse = { 1 /* 527.5 us +-60 us */ }, + .space = { 1 /* 527.5 us */ }, + }, + /* 1 symbol */ + .s01 = { + .pulse = { 1 /* 527.5 us +-60 us */ }, + .space = { 3 /* 1.5825 ms +-40 us */ }, + }, + /* 0 symbol (no leader) */ + .s00 = { + .pulse = { 1 /* 527.5 us +-60 us */ }, + .space = { 1 /* 527.5 us */ }, + }, + /* 1 symbol (no leader) */ + .s01 = { + .pulse = { 1 /* 527.5 us +-60 us */ }, + .space = { 3 /* 1.5825 ms +-40 us */ }, + }, + /* free time */ + .ft = { + .minlen = 16, + .maxlen = 16, + .ft_min = 10, /* 5.275 ms */ + }, + }, + /* scancode logic */ + .scancode = img_ir_jvc_scancode, + .filter = img_ir_jvc_filter, +}; |