Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / rc / img-ir / img-ir-jvc.c

diff --git a/kernel/drivers/media/rc/img-ir/img-ir-jvc.c b/kernel/drivers/media/rc/img-ir/img-ir-jvc.c
new file mode 100644 (file)
index 0000000..d3e2fc0
--- /dev/null
+++ b/kernel/drivers/media/rc/img-ir/img-ir-jvc.c
@@ -0,0 +1,88 @@
+/*
+ * ImgTec IR Decoder setup for JVC protocol.
+ *
+ * Copyright 2012-2014 Imagination Technologies Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include "img-ir-hw.h"
+
+/* Convert JVC data to a scancode */
+static int img_ir_jvc_scancode(int len, u64 raw, u64 enabled_protocols,
+                              struct img_ir_scancode_req *request)
+{
+       unsigned int cust, data;
+
+       if (len != 16)
+               return -EINVAL;
+
+       cust = (raw >> 0) & 0xff;
+       data = (raw >> 8) & 0xff;
+
+       request->protocol = RC_TYPE_JVC;
+       request->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,
+       },
+       /* 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 */ },
+               },
+               /* 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,
+};