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OpenCloudOS-Kernel
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Staging: ipack: Obtain supported speeds from ID ROM. 

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Taprogge 2012-09-11 13:34:57 +02:00 committed by Greg Kroah-Hartman
parent eb12d88bf5
commit 0b0f3a1bee
2 changed files with 8 additions and 0 deletions
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6
drivers/staging/ipack/ipack.c
View File

@ -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)

2
drivers/staging/ipack/ipack.h
View File

@ -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;
};
/**