From patchwork Fri Jan 17 13:59:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hogan X-Patchwork-Id: 3504781 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2905EC02DC for ; Fri, 17 Jan 2014 14:00:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E280F20172 for ; Fri, 17 Jan 2014 14:00:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A7E202015D for ; Fri, 17 Jan 2014 14:00:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752718AbaAQOAb (ORCPT ); Fri, 17 Jan 2014 09:00:31 -0500 Received: from multi.imgtec.com ([194.200.65.239]:48381 "EHLO multi.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752706AbaAQOAU (ORCPT ); Fri, 17 Jan 2014 09:00:20 -0500 From: James Hogan To: Mauro Carvalho Chehab , CC: James Hogan Subject: [PATCH v2 15/15] media: rc: img-ir: add Sanyo decoder module Date: Fri, 17 Jan 2014 13:59:00 +0000 Message-ID: <1389967140-20704-16-git-send-email-james.hogan@imgtec.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1389967140-20704-1-git-send-email-james.hogan@imgtec.com> References: <1389967140-20704-1-git-send-email-james.hogan@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [192.168.154.65] X-SEF-Processed: 7_3_0_01192__2014_01_17_14_00_16 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add an img-ir module for decoding the Sanyo infrared protocol. Signed-off-by: James Hogan Cc: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org --- v2: - Update to new scancode interface (32-bit NEC). - Update to new filtering interface (generic struct rc_scancode_filter). - Remove modularity and dynamic registration/unregistration, adding Sanyo directly to the list of decoders in img-ir-hw.c. --- drivers/media/rc/img-ir/Kconfig | 7 ++ drivers/media/rc/img-ir/Makefile | 1 + drivers/media/rc/img-ir/img-ir-hw.c | 4 ++ drivers/media/rc/img-ir/img-ir-sanyo.c | 122 +++++++++++++++++++++++++++++++++ 4 files changed, 134 insertions(+) create mode 100644 drivers/media/rc/img-ir/img-ir-sanyo.c diff --git a/drivers/media/rc/img-ir/Kconfig b/drivers/media/rc/img-ir/Kconfig index 48627f9..03ba9fc 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 792a3c4..92a459d 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 fc84b75..0e71426 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 0000000..c2c763e --- /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, +};