linux-kernel - [PATCH v2 04/20] Staging: ipack: Obtain supported speeds from ID ROM.

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Message-Id: <1347363313-17094-5-git-send-email-siglesias@igalia.com>
Date:	Tue, 11 Sep 2012 13:34:57 +0200
From:	Samuel Iglesias Gonsálvez 
	<siglesias@...lia.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	industrypack-devel@...ts.sourceforge.net,
	Jens Taprogge <jens.taprogge@...rogge.org>,
	Samuel Iglesias Gonsálvez 
	<siglesias@...lia.com>
Subject: [PATCH v2 04/20] Staging: ipack: Obtain supported speeds from ID ROM.

From: Jens Taprogge <jens.taprogge@...rogge.org>

Signed-off-by: Jens Taprogge <jens.taprogge@...rogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@...lia.com>
---
 drivers/staging/ipack/ipack.c |    6 ++++++
 drivers/staging/ipack/ipack.h |    2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/staging/ipack/ipack.c b/drivers/staging/ipack/ipack.c
index af47772..c36ba9e 100644
--- a/drivers/staging/ipack/ipack.c
+++ b/drivers/staging/ipack/ipack.c
@@ -262,15 +262,21 @@ static void ipack_parse_id1(struct ipack_device *dev)
 
 	dev->id_vendor = id[4];
 	dev->id_device = id[5];
+	dev->speed_8mhz = 1;
+	dev->speed_32mhz = (id[7] == 'H');
 }
 
 static void ipack_parse_id2(struct ipack_device *dev)
 {
 	__be16 *id = (__be16 *) dev->id;
+	u16 flags;
 
 	dev->id_vendor = ((be16_to_cpu(id[3]) & 0xff) << 16)
 			 + be16_to_cpu(id[4]);
 	dev->id_device = be16_to_cpu(id[5]);
+	flags = be16_to_cpu(id[10]);
+	dev->speed_8mhz = !!(flags & 2);
+	dev->speed_32mhz = !!(flags & 4);
 }
 
 static int ipack_device_read_id(struct ipack_device *dev)
diff --git a/drivers/staging/ipack/ipack.h b/drivers/staging/ipack/ipack.h
index a133304..89af9e4 100644
--- a/drivers/staging/ipack/ipack.h
+++ b/drivers/staging/ipack/ipack.h
@@ -79,6 +79,8 @@ struct ipack_device {
 	u32			 id_vendor;
 	u32			 id_device;
 	u8			 id_format;
+	unsigned int		 speed_8mhz:1;
+	unsigned int		 speed_32mhz:1;
 };
 
 /**
-- 
1.7.10.4

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