[PATCH 1/4] isd200: make it 'struct hd_driveid'-free

From: Bartlomiej Zolnierkiewicz
Date: Wed Jul 23 2008 - 14:37:40 EST

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* Factor out debug dump of id from isd200_get_inquiry_data()
to isd200_dump_driveid().

* Change id field in struct isd200_info from 'struct hd_driveid *id'
to 'u16 *id' and update driver accordingly.

* Include <linux/ata.h> directly instead of through <linux/hdreg.h>.

While at it:

* Use ata_id_u32() and ata_id_has_lba() macros.

There should be no functional changes caused by this patch.

Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
depends on 'ata: add missing ATA_ID_* defines (take 2)' patch
posted earlier (http://lkml.org/lkml/2008/7/22/469)

drivers/usb/storage/isd200.c | 209 +++++++++++++------------------------------
1 file changed, 65 insertions(+), 144 deletions(-)

Index: b/drivers/usb/storage/isd200.c
===================================================================
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -45,6 +45,7 @@
#include <linux/jiffies.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/ata.h>
#include <linux/hdreg.h>
#include <linux/scatterlist.h>

@@ -281,7 +282,7 @@ struct isd200_config {

struct isd200_info {
struct inquiry_data InquiryData;
- struct hd_driveid *id;
+ u16 *id;
struct isd200_config ConfigData;
unsigned char *RegsBuf;
unsigned char ATARegs[8];
@@ -509,7 +510,7 @@ static int isd200_action( struct us_data
ata.generic.RegisterSelect = REG_COMMAND;
ata.write.CommandByte = WIN_IDENTIFY;
isd200_set_srb(info, DMA_FROM_DEVICE, info->id,
- sizeof(struct hd_driveid));
+ ATA_ID_WORDS * 2);
break;

default:
@@ -1006,103 +1007,50 @@ static int isd200_manual_enum(struct us_
return(retStatus);
}

-static void isd200_fix_driveid (struct hd_driveid *id)
+static void isd200_fix_driveid(u16 *id)
{
#ifndef __LITTLE_ENDIAN
# ifdef __BIG_ENDIAN
int i;
- u16 *stringcast;

- id->config = __le16_to_cpu(id->config);
- id->cyls = __le16_to_cpu(id->cyls);
- id->reserved2 = __le16_to_cpu(id->reserved2);
- id->heads = __le16_to_cpu(id->heads);
- id->track_bytes = __le16_to_cpu(id->track_bytes);
- id->sector_bytes = __le16_to_cpu(id->sector_bytes);
- id->sectors = __le16_to_cpu(id->sectors);
- id->vendor0 = __le16_to_cpu(id->vendor0);
- id->vendor1 = __le16_to_cpu(id->vendor1);
- id->vendor2 = __le16_to_cpu(id->vendor2);
- stringcast = (u16 *)&id->serial_no[0];
- for (i = 0; i < (20/2); i++)
- stringcast[i] = __le16_to_cpu(stringcast[i]);
- id->buf_type = __le16_to_cpu(id->buf_type);
- id->buf_size = __le16_to_cpu(id->buf_size);
- id->ecc_bytes = __le16_to_cpu(id->ecc_bytes);
- stringcast = (u16 *)&id->fw_rev[0];
- for (i = 0; i < (8/2); i++)
- stringcast[i] = __le16_to_cpu(stringcast[i]);
- stringcast = (u16 *)&id->model[0];
- for (i = 0; i < (40/2); i++)
- stringcast[i] = __le16_to_cpu(stringcast[i]);
- id->dword_io = __le16_to_cpu(id->dword_io);
- id->reserved50 = __le16_to_cpu(id->reserved50);
- id->field_valid = __le16_to_cpu(id->field_valid);
- id->cur_cyls = __le16_to_cpu(id->cur_cyls);
- id->cur_heads = __le16_to_cpu(id->cur_heads);
- id->cur_sectors = __le16_to_cpu(id->cur_sectors);
- id->cur_capacity0 = __le16_to_cpu(id->cur_capacity0);
- id->cur_capacity1 = __le16_to_cpu(id->cur_capacity1);
- id->lba_capacity = __le32_to_cpu(id->lba_capacity);
- id->dma_1word = __le16_to_cpu(id->dma_1word);
- id->dma_mword = __le16_to_cpu(id->dma_mword);
- id->eide_pio_modes = __le16_to_cpu(id->eide_pio_modes);
- id->eide_dma_min = __le16_to_cpu(id->eide_dma_min);
- id->eide_dma_time = __le16_to_cpu(id->eide_dma_time);
- id->eide_pio = __le16_to_cpu(id->eide_pio);
- id->eide_pio_iordy = __le16_to_cpu(id->eide_pio_iordy);
- for (i = 0; i < 2; ++i)
- id->words69_70[i] = __le16_to_cpu(id->words69_70[i]);
- for (i = 0; i < 4; ++i)
- id->words71_74[i] = __le16_to_cpu(id->words71_74[i]);
- id->queue_depth = __le16_to_cpu(id->queue_depth);
- for (i = 0; i < 4; ++i)
- id->words76_79[i] = __le16_to_cpu(id->words76_79[i]);
- id->major_rev_num = __le16_to_cpu(id->major_rev_num);
- id->minor_rev_num = __le16_to_cpu(id->minor_rev_num);
- id->command_set_1 = __le16_to_cpu(id->command_set_1);
- id->command_set_2 = __le16_to_cpu(id->command_set_2);
- id->cfsse = __le16_to_cpu(id->cfsse);
- id->cfs_enable_1 = __le16_to_cpu(id->cfs_enable_1);
- id->cfs_enable_2 = __le16_to_cpu(id->cfs_enable_2);
- id->csf_default = __le16_to_cpu(id->csf_default);
- id->dma_ultra = __le16_to_cpu(id->dma_ultra);
- id->trseuc = __le16_to_cpu(id->trseuc);
- id->trsEuc = __le16_to_cpu(id->trsEuc);
- id->CurAPMvalues = __le16_to_cpu(id->CurAPMvalues);
- id->mprc = __le16_to_cpu(id->mprc);
- id->hw_config = __le16_to_cpu(id->hw_config);
- id->acoustic = __le16_to_cpu(id->acoustic);
- id->msrqs = __le16_to_cpu(id->msrqs);
- id->sxfert = __le16_to_cpu(id->sxfert);
- id->sal = __le16_to_cpu(id->sal);
- id->spg = __le32_to_cpu(id->spg);
- id->lba_capacity_2 = __le64_to_cpu(id->lba_capacity_2);
- for (i = 0; i < 22; i++)
- id->words104_125[i] = __le16_to_cpu(id->words104_125[i]);
- id->last_lun = __le16_to_cpu(id->last_lun);
- id->word127 = __le16_to_cpu(id->word127);
- id->dlf = __le16_to_cpu(id->dlf);
- id->csfo = __le16_to_cpu(id->csfo);
- for (i = 0; i < 26; i++)
- id->words130_155[i] = __le16_to_cpu(id->words130_155[i]);
- id->word156 = __le16_to_cpu(id->word156);
- for (i = 0; i < 3; i++)
- id->words157_159[i] = __le16_to_cpu(id->words157_159[i]);
- id->cfa_power = __le16_to_cpu(id->cfa_power);
- for (i = 0; i < 14; i++)
- id->words161_175[i] = __le16_to_cpu(id->words161_175[i]);
- for (i = 0; i < 31; i++)
- id->words176_205[i] = __le16_to_cpu(id->words176_205[i]);
- for (i = 0; i < 48; i++)
- id->words206_254[i] = __le16_to_cpu(id->words206_254[i]);
- id->integrity_word = __le16_to_cpu(id->integrity_word);
+ for (i = 0; i < ATA_ID_WORDS; i++)
+ id[i] = __le16_to_cpu(id[i]);
# else
# error "Please fix <asm/byteorder.h>"
# endif
#endif
}

+static void isd200_dump_driveid(u16 *id)
+{
+ US_DEBUGP(" Identify Data Structure:\n");
+ US_DEBUGP(" config = 0x%x\n", id[ATA_ID_CONFIG]);
+ US_DEBUGP(" cyls = 0x%x\n", id[ATA_ID_CYLS]);
+ US_DEBUGP(" heads = 0x%x\n", id[ATA_ID_HEADS]);
+ US_DEBUGP(" track_bytes = 0x%x\n", id[4]);
+ US_DEBUGP(" sector_bytes = 0x%x\n", id[5]);
+ US_DEBUGP(" sectors = 0x%x\n", id[ATA_ID_SECTORS]);
+ US_DEBUGP(" serial_no[0] = 0x%x\n", *(char *)&id[ATA_ID_SERNO]);
+ US_DEBUGP(" buf_type = 0x%x\n", id[20]);
+ US_DEBUGP(" buf_size = 0x%x\n", id[ATA_ID_BUF_SIZE]);
+ US_DEBUGP(" ecc_bytes = 0x%x\n", id[22]);
+ US_DEBUGP(" fw_rev[0] = 0x%x\n", *(char *)&id[ATA_ID_FW_REV]);
+ US_DEBUGP(" model[0] = 0x%x\n", *(char *)&id[ATA_ID_PROD]);
+ US_DEBUGP(" max_multsect = 0x%x\n", id[ATA_ID_MAX_MULTSECT] & 0xff);
+ US_DEBUGP(" dword_io = 0x%x\n", id[ATA_ID_DWORD_IO]);
+ US_DEBUGP(" capability = 0x%x\n", id[ATA_ID_CAPABILITY] >> 8);
+ US_DEBUGP(" tPIO = 0x%x\n", id[ATA_ID_OLD_PIO_MODES] >> 8);
+ US_DEBUGP(" tDMA = 0x%x\n", id[ATA_ID_OLD_DMA_MODES] >> 8);
+ US_DEBUGP(" field_valid = 0x%x\n", id[ATA_ID_FIELD_VALID]);
+ US_DEBUGP(" cur_cyls = 0x%x\n", id[ATA_ID_CUR_CYLS]);
+ US_DEBUGP(" cur_heads = 0x%x\n", id[ATA_ID_CUR_HEADS]);
+ US_DEBUGP(" cur_sectors = 0x%x\n", id[ATA_ID_CUR_SECTORS]);
+ US_DEBUGP(" cur_capacity = 0x%x\n", ata_id_u32(id, 57));
+ US_DEBUGP(" multsect = 0x%x\n", id[ATA_ID_MULTSECT] & 0xff);
+ US_DEBUGP(" lba_capacity = 0x%x\n", ata_id_u32(id, ATA_ID_LBA_CAPACITY));
+ US_DEBUGP(" command_set_1 = 0x%x\n", id[ATA_ID_COMMAND_SET_1]);
+ US_DEBUGP(" command_set_2 = 0x%x\n", id[ATA_ID_COMMAND_SET_2]);
+}

/**************************************************************************
* isd200_get_inquiry_data
@@ -1116,7 +1064,7 @@ static int isd200_get_inquiry_data( stru
{
struct isd200_info *info = (struct isd200_info *)us->extra;
int retStatus = ISD200_GOOD;
- struct hd_driveid *id = info->id;
+ u16 *id = info->id;

US_DEBUGP("Entering isd200_get_inquiry_data\n");

@@ -1133,8 +1081,7 @@ static int isd200_get_inquiry_data( stru
/* this must be an ATA device */
/* perform an ATA Command Identify */
transferStatus = isd200_action( us, ACTION_IDENTIFY,
- id,
- sizeof(struct hd_driveid) );
+ id, ATA_ID_WORDS * 2);
if (transferStatus != ISD200_TRANSPORT_GOOD) {
/* Error issuing ATA Command Identify */
US_DEBUGP(" Error issuing ATA Command Identify\n");
@@ -1144,35 +1091,9 @@ static int isd200_get_inquiry_data( stru
int i;
__be16 *src;
__u16 *dest;
- isd200_fix_driveid(id);

- US_DEBUGP(" Identify Data Structure:\n");
- US_DEBUGP(" config = 0x%x\n", id->config);
- US_DEBUGP(" cyls = 0x%x\n", id->cyls);
- US_DEBUGP(" heads = 0x%x\n", id->heads);
- US_DEBUGP(" track_bytes = 0x%x\n", id->track_bytes);
- US_DEBUGP(" sector_bytes = 0x%x\n", id->sector_bytes);
- US_DEBUGP(" sectors = 0x%x\n", id->sectors);
- US_DEBUGP(" serial_no[0] = 0x%x\n", id->serial_no[0]);
- US_DEBUGP(" buf_type = 0x%x\n", id->buf_type);
- US_DEBUGP(" buf_size = 0x%x\n", id->buf_size);
- US_DEBUGP(" ecc_bytes = 0x%x\n", id->ecc_bytes);
- US_DEBUGP(" fw_rev[0] = 0x%x\n", id->fw_rev[0]);
- US_DEBUGP(" model[0] = 0x%x\n", id->model[0]);
- US_DEBUGP(" max_multsect = 0x%x\n", id->max_multsect);
- US_DEBUGP(" dword_io = 0x%x\n", id->dword_io);
- US_DEBUGP(" capability = 0x%x\n", id->capability);
- US_DEBUGP(" tPIO = 0x%x\n", id->tPIO);
- US_DEBUGP(" tDMA = 0x%x\n", id->tDMA);
- US_DEBUGP(" field_valid = 0x%x\n", id->field_valid);
- US_DEBUGP(" cur_cyls = 0x%x\n", id->cur_cyls);
- US_DEBUGP(" cur_heads = 0x%x\n", id->cur_heads);
- US_DEBUGP(" cur_sectors = 0x%x\n", id->cur_sectors);
- US_DEBUGP(" cur_capacity = 0x%x\n", (id->cur_capacity1 << 16) + id->cur_capacity0 );
- US_DEBUGP(" multsect = 0x%x\n", id->multsect);
- US_DEBUGP(" lba_capacity = 0x%x\n", id->lba_capacity);
- US_DEBUGP(" command_set_1 = 0x%x\n", id->command_set_1);
- US_DEBUGP(" command_set_2 = 0x%x\n", id->command_set_2);
+ isd200_fix_driveid(id);
+ isd200_dump_driveid(id);

memset(&info->InquiryData, 0, sizeof(info->InquiryData));

@@ -1182,30 +1103,30 @@ static int isd200_get_inquiry_data( stru
/* The length must be at least 36 (5 + 31) */
info->InquiryData.AdditionalLength = 0x1F;

- if (id->command_set_1 & COMMANDSET_MEDIA_STATUS) {
+ if (id[ATA_ID_COMMAND_SET_1] & COMMANDSET_MEDIA_STATUS) {
/* set the removable bit */
info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE;
info->DeviceFlags |= DF_REMOVABLE_MEDIA;
}

/* Fill in vendor identification fields */
- src = (__be16*)id->model;
+ src = (__be16 *)&id[ATA_ID_PROD];
dest = (__u16*)info->InquiryData.VendorId;
for (i=0;i<4;i++)
dest[i] = be16_to_cpu(src[i]);

- src = (__be16*)(id->model+8);
+ src = (__be16 *)&id[ATA_ID_PROD + 8/2];
dest = (__u16*)info->InquiryData.ProductId;
for (i=0;i<8;i++)
dest[i] = be16_to_cpu(src[i]);

- src = (__be16*)id->fw_rev;
+ src = (__be16 *)&id[ATA_ID_FW_REV];
dest = (__u16*)info->InquiryData.ProductRevisionLevel;
for (i=0;i<2;i++)
dest[i] = be16_to_cpu(src[i]);

/* determine if it supports Media Status Notification */
- if (id->command_set_2 & COMMANDSET_MEDIA_STATUS) {
+ if (id[ATA_ID_COMMAND_SET_2] & COMMANDSET_MEDIA_STATUS) {
US_DEBUGP(" Device supports Media Status Notification\n");

/* Indicate that it is enabled, even though it is not
@@ -1254,7 +1175,7 @@ static int isd200_scsi_to_ata(struct scs
union ata_cdb * ataCdb)
{
struct isd200_info *info = (struct isd200_info *)us->extra;
- struct hd_driveid *id = info->id;
+ u16 *id = info->id;
int sendToTransport = 1;
unsigned char sectnum, head;
unsigned short cylinder;
@@ -1322,13 +1243,12 @@ static int isd200_scsi_to_ata(struct scs

US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n");

- if (id->capability & CAPABILITY_LBA ) {
- capacity = id->lba_capacity - 1;
- } else {
- capacity = (id->heads *
- id->cyls *
- id->sectors) - 1;
- }
+ if (ata_id_has_lba(id))
+ capacity = ata_id_u32(id, ATA_ID_LBA_CAPACITY) - 1;
+ else
+ capacity = (id[ATA_ID_HEADS] * id[ATA_ID_CYLS] *
+ id[ATA_ID_SECTORS]) - 1;
+
readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity);
readCapacityData.BytesPerBlock = cpu_to_be32(0x200);

@@ -1345,16 +1265,16 @@ static int isd200_scsi_to_ata(struct scs
lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]);
blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8];

- if (id->capability & CAPABILITY_LBA) {
+ if (ata_id_has_lba(id)) {
sectnum = (unsigned char)(lba);
cylinder = (unsigned short)(lba>>8);
head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
} else {
- sectnum = (unsigned char)((lba % id->sectors) + 1);
- cylinder = (unsigned short)(lba / (id->sectors *
- id->heads));
- head = (unsigned char)((lba / id->sectors) %
- id->heads);
+ sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1);
+ cylinder = (u16)(lba / (id[ATA_ID_SECTORS] *
+ id[ATA_ID_HEADS]));
+ head = (u8)((lba / id[ATA_ID_SECTORS]) %
+ id[ATA_ID_HEADS]);
}
ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
@@ -1377,14 +1297,16 @@ static int isd200_scsi_to_ata(struct scs
lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]);
blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8];

- if (id->capability & CAPABILITY_LBA) {
+ if (ata_id_has_lba(id)) {
sectnum = (unsigned char)(lba);
cylinder = (unsigned short)(lba>>8);
head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
} else {
- sectnum = (unsigned char)((lba % id->sectors) + 1);
- cylinder = (unsigned short)(lba / (id->sectors * id->heads));
- head = (unsigned char)((lba / id->sectors) % id->heads);
+ sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1);
+ cylinder = (u16)(lba / (id[ATA_ID_SECTORS] *
+ id[ATA_ID_HEADS]));
+ head = (u8)((lba / id[ATA_ID_SECTORS]) %
+ id[ATA_ID_HEADS]);
}
ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
@@ -1492,8 +1414,7 @@ static int isd200_init_info(struct us_da
if (!info)
retStatus = ISD200_ERROR;
else {
- info->id = (struct hd_driveid *)
- kzalloc(sizeof(struct hd_driveid), GFP_KERNEL);
+ info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
info->RegsBuf = (unsigned char *)
kmalloc(sizeof(info->ATARegs), GFP_KERNEL);
info->srb.sense_buffer =
--
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