From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-lb0-f174.google.com ([209.85.217.174]:60654 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753125AbaAZVvH (ORCPT ); Sun, 26 Jan 2014 16:51:07 -0500 Received: by mail-lb0-f174.google.com with SMTP id l4so3905800lbv.19 for ; Sun, 26 Jan 2014 13:51:06 -0800 (PST) From: =?UTF-8?q?Antti=20Sepp=C3=A4l=C3=A4?= To: linux-media@vger.kernel.org Cc: Mauro Carvalho Chehab , Sean Young , =?UTF-8?q?Antti=20Sepp=C3=A4l=C3=A4?= Subject: [RFCv2 PATCH 3/5] rc-loopback: Add support for reading/writing wakeup scancodes via sysfs Date: Sun, 26 Jan 2014 23:50:24 +0200 Message-Id: <1390773026-567-4-git-send-email-a.seppala@gmail.com> In-Reply-To: <1390773026-567-1-git-send-email-a.seppala@gmail.com> References: <1390773026-567-1-git-send-email-a.seppala@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org List-ID: This patch adds sample support for reading/writing the wakeup scancodes to rc-loopback device driver. Signed-off-by: Antti Seppälä --- drivers/media/rc/rc-loopback.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c index 53d0282..46e76ad 100644 --- a/drivers/media/rc/rc-loopback.c +++ b/drivers/media/rc/rc-loopback.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #define DRIVER_NAME "rc-loopback" @@ -45,6 +46,7 @@ struct loopback_dev { bool carrierreport; u32 rxcarriermin; u32 rxcarriermax; + u32 wakeup_scancode; }; static struct loopback_dev loopdev; @@ -176,6 +178,41 @@ static int loop_set_carrier_report(struct rc_dev *dev, int enable) return 0; } +static int loop_wakeup_codes(struct rc_dev *dev, + struct list_head *wakeup_code_list, int write) +{ + u32 value = 0; + struct rc_wakeup_code *code; + struct loopback_dev *lodev = dev->priv; + + dprintk("%sing wakeup codes\n", write ? "writ" : "read"); + + if (write) { + code = list_first_entry_or_null(wakeup_code_list, + struct rc_wakeup_code, + list_item); + if (code) + value = code->value; + + if (dev->enabled_wake_protos & RC_BIT_RC5) { + if (value > 0xFFF) + return -EINVAL; + } else if (dev->enabled_wake_protos & RC_BIT_RC6_0) { + if (value > 0xFFFF) + return -EINVAL; + } + + lodev->wakeup_scancode = value; + } else { + code = kmalloc(sizeof(struct rc_wakeup_code), GFP_KERNEL); + if (!code) + return -ENOMEM; + code->value = lodev->wakeup_scancode; + list_add_tail(&code->list_item, wakeup_code_list); + } + return 0; +} + static int __init loop_init(void) { struct rc_dev *rc; @@ -196,6 +233,8 @@ static int __init loop_init(void) rc->priv = &loopdev; rc->driver_type = RC_DRIVER_IR_RAW; rc->allowed_protos = RC_BIT_ALL; + rc->allowed_wake_protos = RC_BIT_RC6_0 | RC_BIT_RC5; + rc->enabled_wake_protos = RC_BIT_RC6_0; rc->timeout = 100 * 1000 * 1000; /* 100 ms */ rc->min_timeout = 1; rc->max_timeout = UINT_MAX; @@ -209,6 +248,7 @@ static int __init loop_init(void) rc->s_idle = loop_set_idle; rc->s_learning_mode = loop_set_learning_mode; rc->s_carrier_report = loop_set_carrier_report; + rc->s_wakeup_codes = loop_wakeup_codes; loopdev.txmask = RXMASK_REGULAR; loopdev.txcarrier = 36000; -- 1.8.3.2