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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-04-28 13:06:16 +0900
committerJens Axboe <jens.axboe@oracle.com>2009-04-28 08:14:52 +0200
commit8a11a789c39cd6f61de4243234cf44a46c23ffd0 (patch)
treeec88d32cffdf40bf13c3f83ad4220e4205666e3f /drivers/block
parenta03bb5a32fff4aa23f081a3cff7e98d4084104cd (diff)
mg_disk: fix dependency on libata
Add local copies of ata_id_string() and ata_id_c_string() to mg_disk so there is no need for the driver to depend on ATA and SCSI. [ Impact: break dependency on libata by copying ata id string functions ] Cc: unsik Kim <donari75@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/Kconfig2
-rw-r--r--drivers/block/mg_disk.c44
2 files changed, 41 insertions, 5 deletions
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index ddea8e485cc9..f42fa50d3550 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -412,7 +412,7 @@ config ATA_OVER_ETH
config MG_DISK
tristate "mGine mflash, gflash support"
- depends on ARM && ATA && GPIOLIB
+ depends on ARM && GPIOLIB
help
mGine mFlash(gFlash) block device driver
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 1a4cc968cfee..8e53cae9fa90 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -17,7 +17,7 @@
#include <linux/fs.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
-#include <linux/libata.h>
+#include <linux/ata.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
@@ -357,6 +357,42 @@ static irqreturn_t mg_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
+/* local copy of ata_id_string() */
+static void mg_id_string(const u16 *id, unsigned char *s,
+ unsigned int ofs, unsigned int len)
+{
+ unsigned int c;
+
+ BUG_ON(len & 1);
+
+ while (len > 0) {
+ c = id[ofs] >> 8;
+ *s = c;
+ s++;
+
+ c = id[ofs] & 0xff;
+ *s = c;
+ s++;
+
+ ofs++;
+ len -= 2;
+ }
+}
+
+/* local copy of ata_id_c_string() */
+static void mg_id_c_string(const u16 *id, unsigned char *s,
+ unsigned int ofs, unsigned int len)
+{
+ unsigned char *p;
+
+ mg_id_string(id, s, ofs, len - 1);
+
+ p = s + strnlen(s, len - 1);
+ while (p > s && p[-1] == ' ')
+ p--;
+ *p = '\0';
+}
+
static int mg_get_disk_id(struct mg_host *host)
{
u32 i;
@@ -403,9 +439,9 @@ static int mg_get_disk_id(struct mg_host *host)
host->n_sectors -= host->nres_sectors;
}
- ata_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev));
- ata_id_c_string(id, model, ATA_ID_PROD, sizeof(model));
- ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
+ mg_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev));
+ mg_id_c_string(id, model, ATA_ID_PROD, sizeof(model));
+ mg_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
printk(KERN_INFO "mg_disk: model: %s\n", model);
printk(KERN_INFO "mg_disk: firm: %.8s\n", fwrev);
printk(KERN_INFO "mg_disk: serial: %s\n", serial);