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Date: Sun, 11 Jan 2009 20:12:07 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 8/8] ide-acpi: remove taskfile_load_raw()
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide-acpi: remove taskfile_load_raw()
* taskfile_load_raw() is used only by do_drive_set_taskfiles()
so inline it there.
While at it:
- rename 'args' variable to 'task'
- remove struct taskfile_array
- do ide_acpigtf check early
- use REGS_PER_GTF
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ide-acpi.c | 69 ++++++++++++++++---------------------------------
1 file changed, 23 insertions(+), 46 deletions(-)
Index: b/drivers/ide/ide-acpi.c
===================================================================
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -26,9 +26,6 @@
#include <acpi/actypes.h>
#define REGS_PER_GTF 7
-struct taskfile_array {
- u8 tfa[REGS_PER_GTF]; /* regs. 0x1f1 - 0x1f7 */
-};
struct GTM_buffer {
u32 PIO_speed0;
@@ -291,43 +288,6 @@ out:
}
/**
- * taskfile_load_raw - send taskfile registers to drive
- * @drive: drive to which output is sent
- * @gtf: raw ATA taskfile register set (0x1f1 - 0x1f7)
- *
- * Outputs IDE taskfile to the drive.
- */
-static int taskfile_load_raw(ide_drive_t *drive,
- const struct taskfile_array *gtf)
-{
- ide_task_t args;
- int err = 0;
-
- DEBPRINT("(0x1f1-1f7): hex: "
- "%02x %02x %02x %02x %02x %02x %02x\n",
- gtf->tfa[0], gtf->tfa[1], gtf->tfa[2],
- gtf->tfa[3], gtf->tfa[4], gtf->tfa[5], gtf->tfa[6]);
-
- memset(&args, 0, sizeof(ide_task_t));
-
- /* convert gtf to IDE Taskfile */
- memcpy(&args.tf_array[7], >f->tfa, 7);
- args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
-
- if (!ide_acpigtf) {
- DEBPRINT("_GTF execution disabled\n");
- return err;
- }
-
- err = ide_no_data_taskfile(drive, &args);
- if (err)
- printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
- __func__, err);
-
- return err;
-}
-
-/**
* do_drive_set_taskfiles - write the drive taskfile settings from _GTF
* @drive: the drive to which the taskfile command should be sent
* @gtf_length: total number of bytes of _GTF taskfiles
@@ -343,19 +303,36 @@ static int do_drive_set_taskfiles(ide_dr
int rc = 0, err;
int gtf_count = gtf_length / REGS_PER_GTF;
int ix;
- struct taskfile_array *gtf;
DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n",
gtf_length, gtf_length, gtf_count, gtf_address);
+ /* send all taskfile registers (0x1f1-0x1f7) *in*that*order* */
for (ix = 0; ix < gtf_count; ix++) {
- gtf = (struct taskfile_array *)
- (gtf_address + ix * REGS_PER_GTF);
+ u8 *gtf = (u8 *)(gtf_address + ix * REGS_PER_GTF);
+ ide_task_t task;
- /* send all TaskFile registers (0x1f1-0x1f7) *in*that*order* */
- err = taskfile_load_raw(drive, gtf);
- if (err)
+ DEBPRINT("(0x1f1-1f7): "
+ "hex: %02x %02x %02x %02x %02x %02x %02x\n",
+ gtf[0], gtf[1], gtf[2],
+ gtf[3], gtf[4], gtf[5], gtf[6]);
+
+ if (!ide_acpigtf) {
+ DEBPRINT("_GTF execution disabled\n");
+ continue;
+ }
+
+ /* convert GTF to taskfile */
+ memset(&task, 0, sizeof(ide_task_t));
+ memcpy(&task.tf_array[7], gtf, REGS_PER_GTF);
+ task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+
+ err = ide_no_data_taskfile(drive, &task);
+ if (err) {
+ printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n",
+ __func__, err);
rc = err;
+ }
}
return rc;
--
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