mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
6f03979051
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Adam Radford <linuxraid@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
461 lines
11 KiB
C
461 lines
11 KiB
C
/*
|
|
* PS3 BD/DVD/CD-ROM Storage Driver
|
|
*
|
|
* Copyright (C) 2007 Sony Computer Entertainment Inc.
|
|
* Copyright 2007 Sony Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published
|
|
* by the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <linux/cdrom.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <scsi/scsi.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <scsi/scsi_dbg.h>
|
|
#include <scsi/scsi_device.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/scsi_eh.h>
|
|
|
|
#include <asm/lv1call.h>
|
|
#include <asm/ps3stor.h>
|
|
|
|
|
|
#define DEVICE_NAME "ps3rom"
|
|
|
|
#define BOUNCE_SIZE (64*1024)
|
|
|
|
#define PS3ROM_MAX_SECTORS (BOUNCE_SIZE >> 9)
|
|
|
|
|
|
struct ps3rom_private {
|
|
struct ps3_storage_device *dev;
|
|
struct scsi_cmnd *curr_cmd;
|
|
};
|
|
|
|
|
|
#define LV1_STORAGE_SEND_ATAPI_COMMAND (1)
|
|
|
|
struct lv1_atapi_cmnd_block {
|
|
u8 pkt[32]; /* packet command block */
|
|
u32 pktlen; /* should be 12 for ATAPI 8020 */
|
|
u32 blocks;
|
|
u32 block_size;
|
|
u32 proto; /* transfer mode */
|
|
u32 in_out; /* transfer direction */
|
|
u64 buffer; /* parameter except command block */
|
|
u32 arglen; /* length above */
|
|
};
|
|
|
|
enum lv1_atapi_proto {
|
|
NON_DATA_PROTO = 0,
|
|
PIO_DATA_IN_PROTO = 1,
|
|
PIO_DATA_OUT_PROTO = 2,
|
|
DMA_PROTO = 3
|
|
};
|
|
|
|
enum lv1_atapi_in_out {
|
|
DIR_WRITE = 0, /* memory -> device */
|
|
DIR_READ = 1 /* device -> memory */
|
|
};
|
|
|
|
|
|
static int ps3rom_slave_configure(struct scsi_device *scsi_dev)
|
|
{
|
|
struct ps3rom_private *priv = shost_priv(scsi_dev->host);
|
|
struct ps3_storage_device *dev = priv->dev;
|
|
|
|
dev_dbg(&dev->sbd.core, "%s:%u: id %u, lun %u, channel %u\n", __func__,
|
|
__LINE__, scsi_dev->id, scsi_dev->lun, scsi_dev->channel);
|
|
|
|
/*
|
|
* ATAPI SFF8020 devices use MODE_SENSE_10,
|
|
* so we can prohibit MODE_SENSE_6
|
|
*/
|
|
scsi_dev->use_10_for_ms = 1;
|
|
|
|
/* we don't support {READ,WRITE}_6 */
|
|
scsi_dev->use_10_for_rw = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ps3rom_atapi_request(struct ps3_storage_device *dev,
|
|
struct scsi_cmnd *cmd)
|
|
{
|
|
struct lv1_atapi_cmnd_block atapi_cmnd;
|
|
unsigned char opcode = cmd->cmnd[0];
|
|
int res;
|
|
u64 lpar;
|
|
|
|
dev_dbg(&dev->sbd.core, "%s:%u: send ATAPI command 0x%02x\n", __func__,
|
|
__LINE__, opcode);
|
|
|
|
memset(&atapi_cmnd, 0, sizeof(struct lv1_atapi_cmnd_block));
|
|
memcpy(&atapi_cmnd.pkt, cmd->cmnd, 12);
|
|
atapi_cmnd.pktlen = 12;
|
|
atapi_cmnd.block_size = 1; /* transfer size is block_size * blocks */
|
|
atapi_cmnd.blocks = atapi_cmnd.arglen = scsi_bufflen(cmd);
|
|
atapi_cmnd.buffer = dev->bounce_lpar;
|
|
|
|
switch (cmd->sc_data_direction) {
|
|
case DMA_FROM_DEVICE:
|
|
if (scsi_bufflen(cmd) >= CD_FRAMESIZE)
|
|
atapi_cmnd.proto = DMA_PROTO;
|
|
else
|
|
atapi_cmnd.proto = PIO_DATA_IN_PROTO;
|
|
atapi_cmnd.in_out = DIR_READ;
|
|
break;
|
|
|
|
case DMA_TO_DEVICE:
|
|
if (scsi_bufflen(cmd) >= CD_FRAMESIZE)
|
|
atapi_cmnd.proto = DMA_PROTO;
|
|
else
|
|
atapi_cmnd.proto = PIO_DATA_OUT_PROTO;
|
|
atapi_cmnd.in_out = DIR_WRITE;
|
|
scsi_sg_copy_to_buffer(cmd, dev->bounce_buf, dev->bounce_size);
|
|
break;
|
|
|
|
default:
|
|
atapi_cmnd.proto = NON_DATA_PROTO;
|
|
break;
|
|
}
|
|
|
|
lpar = ps3_mm_phys_to_lpar(__pa(&atapi_cmnd));
|
|
res = lv1_storage_send_device_command(dev->sbd.dev_id,
|
|
LV1_STORAGE_SEND_ATAPI_COMMAND,
|
|
lpar, sizeof(atapi_cmnd),
|
|
atapi_cmnd.buffer,
|
|
atapi_cmnd.arglen, &dev->tag);
|
|
if (res == LV1_DENIED_BY_POLICY) {
|
|
dev_dbg(&dev->sbd.core,
|
|
"%s:%u: ATAPI command 0x%02x denied by policy\n",
|
|
__func__, __LINE__, opcode);
|
|
return DID_ERROR << 16;
|
|
}
|
|
|
|
if (res) {
|
|
dev_err(&dev->sbd.core,
|
|
"%s:%u: ATAPI command 0x%02x failed %d\n", __func__,
|
|
__LINE__, opcode, res);
|
|
return DID_ERROR << 16;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline unsigned int srb10_lba(const struct scsi_cmnd *cmd)
|
|
{
|
|
return cmd->cmnd[2] << 24 | cmd->cmnd[3] << 16 | cmd->cmnd[4] << 8 |
|
|
cmd->cmnd[5];
|
|
}
|
|
|
|
static inline unsigned int srb10_len(const struct scsi_cmnd *cmd)
|
|
{
|
|
return cmd->cmnd[7] << 8 | cmd->cmnd[8];
|
|
}
|
|
|
|
static int ps3rom_read_request(struct ps3_storage_device *dev,
|
|
struct scsi_cmnd *cmd, u32 start_sector,
|
|
u32 sectors)
|
|
{
|
|
int res;
|
|
|
|
dev_dbg(&dev->sbd.core, "%s:%u: read %u sectors starting at %u\n",
|
|
__func__, __LINE__, sectors, start_sector);
|
|
|
|
res = lv1_storage_read(dev->sbd.dev_id,
|
|
dev->regions[dev->region_idx].id, start_sector,
|
|
sectors, 0, dev->bounce_lpar, &dev->tag);
|
|
if (res) {
|
|
dev_err(&dev->sbd.core, "%s:%u: read failed %d\n", __func__,
|
|
__LINE__, res);
|
|
return DID_ERROR << 16;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ps3rom_write_request(struct ps3_storage_device *dev,
|
|
struct scsi_cmnd *cmd, u32 start_sector,
|
|
u32 sectors)
|
|
{
|
|
int res;
|
|
|
|
dev_dbg(&dev->sbd.core, "%s:%u: write %u sectors starting at %u\n",
|
|
__func__, __LINE__, sectors, start_sector);
|
|
|
|
scsi_sg_copy_to_buffer(cmd, dev->bounce_buf, dev->bounce_size);
|
|
|
|
res = lv1_storage_write(dev->sbd.dev_id,
|
|
dev->regions[dev->region_idx].id, start_sector,
|
|
sectors, 0, dev->bounce_lpar, &dev->tag);
|
|
if (res) {
|
|
dev_err(&dev->sbd.core, "%s:%u: write failed %d\n", __func__,
|
|
__LINE__, res);
|
|
return DID_ERROR << 16;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ps3rom_queuecommand_lck(struct scsi_cmnd *cmd,
|
|
void (*done)(struct scsi_cmnd *))
|
|
{
|
|
struct ps3rom_private *priv = shost_priv(cmd->device->host);
|
|
struct ps3_storage_device *dev = priv->dev;
|
|
unsigned char opcode;
|
|
int res;
|
|
|
|
#ifdef DEBUG
|
|
scsi_print_command(cmd);
|
|
#endif
|
|
|
|
priv->curr_cmd = cmd;
|
|
cmd->scsi_done = done;
|
|
|
|
opcode = cmd->cmnd[0];
|
|
/*
|
|
* While we can submit READ/WRITE SCSI commands as ATAPI commands,
|
|
* it's recommended for various reasons (performance, error handling,
|
|
* ...) to use lv1_storage_{read,write}() instead
|
|
*/
|
|
switch (opcode) {
|
|
case READ_10:
|
|
res = ps3rom_read_request(dev, cmd, srb10_lba(cmd),
|
|
srb10_len(cmd));
|
|
break;
|
|
|
|
case WRITE_10:
|
|
res = ps3rom_write_request(dev, cmd, srb10_lba(cmd),
|
|
srb10_len(cmd));
|
|
break;
|
|
|
|
default:
|
|
res = ps3rom_atapi_request(dev, cmd);
|
|
break;
|
|
}
|
|
|
|
if (res) {
|
|
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
|
|
cmd->result = res;
|
|
cmd->sense_buffer[0] = 0x70;
|
|
cmd->sense_buffer[2] = ILLEGAL_REQUEST;
|
|
priv->curr_cmd = NULL;
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static DEF_SCSI_QCMD(ps3rom_queuecommand)
|
|
|
|
static int decode_lv1_status(u64 status, unsigned char *sense_key,
|
|
unsigned char *asc, unsigned char *ascq)
|
|
{
|
|
if (((status >> 24) & 0xff) != SAM_STAT_CHECK_CONDITION)
|
|
return -1;
|
|
|
|
*sense_key = (status >> 16) & 0xff;
|
|
*asc = (status >> 8) & 0xff;
|
|
*ascq = status & 0xff;
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t ps3rom_interrupt(int irq, void *data)
|
|
{
|
|
struct ps3_storage_device *dev = data;
|
|
struct Scsi_Host *host;
|
|
struct ps3rom_private *priv;
|
|
struct scsi_cmnd *cmd;
|
|
int res;
|
|
u64 tag, status;
|
|
unsigned char sense_key, asc, ascq;
|
|
|
|
res = lv1_storage_get_async_status(dev->sbd.dev_id, &tag, &status);
|
|
/*
|
|
* status = -1 may mean that ATAPI transport completed OK, but
|
|
* ATAPI command itself resulted CHECK CONDITION
|
|
* so, upper layer should issue REQUEST_SENSE to check the sense data
|
|
*/
|
|
|
|
if (tag != dev->tag)
|
|
dev_err(&dev->sbd.core,
|
|
"%s:%u: tag mismatch, got %llx, expected %llx\n",
|
|
__func__, __LINE__, tag, dev->tag);
|
|
|
|
if (res) {
|
|
dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%llx\n",
|
|
__func__, __LINE__, res, status);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
host = ps3_system_bus_get_drvdata(&dev->sbd);
|
|
priv = shost_priv(host);
|
|
cmd = priv->curr_cmd;
|
|
|
|
if (!status) {
|
|
/* OK, completed */
|
|
if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
int len;
|
|
|
|
len = scsi_sg_copy_from_buffer(cmd,
|
|
dev->bounce_buf,
|
|
dev->bounce_size);
|
|
|
|
scsi_set_resid(cmd, scsi_bufflen(cmd) - len);
|
|
}
|
|
cmd->result = DID_OK << 16;
|
|
goto done;
|
|
}
|
|
|
|
if (cmd->cmnd[0] == REQUEST_SENSE) {
|
|
/* SCSI spec says request sense should never get error */
|
|
dev_err(&dev->sbd.core, "%s:%u: end error without autosense\n",
|
|
__func__, __LINE__);
|
|
cmd->result = DID_ERROR << 16 | SAM_STAT_CHECK_CONDITION;
|
|
goto done;
|
|
}
|
|
|
|
if (decode_lv1_status(status, &sense_key, &asc, &ascq)) {
|
|
cmd->result = DID_ERROR << 16;
|
|
goto done;
|
|
}
|
|
|
|
scsi_build_sense_buffer(0, cmd->sense_buffer, sense_key, asc, ascq);
|
|
cmd->result = SAM_STAT_CHECK_CONDITION;
|
|
|
|
done:
|
|
priv->curr_cmd = NULL;
|
|
cmd->scsi_done(cmd);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static struct scsi_host_template ps3rom_host_template = {
|
|
.name = DEVICE_NAME,
|
|
.slave_configure = ps3rom_slave_configure,
|
|
.queuecommand = ps3rom_queuecommand,
|
|
.can_queue = 1,
|
|
.this_id = 7,
|
|
.sg_tablesize = SG_ALL,
|
|
.cmd_per_lun = 1,
|
|
.emulated = 1, /* only sg driver uses this */
|
|
.max_sectors = PS3ROM_MAX_SECTORS,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
.module = THIS_MODULE,
|
|
};
|
|
|
|
|
|
static int ps3rom_probe(struct ps3_system_bus_device *_dev)
|
|
{
|
|
struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core);
|
|
int error;
|
|
struct Scsi_Host *host;
|
|
struct ps3rom_private *priv;
|
|
|
|
if (dev->blk_size != CD_FRAMESIZE) {
|
|
dev_err(&dev->sbd.core,
|
|
"%s:%u: cannot handle block size %llu\n", __func__,
|
|
__LINE__, dev->blk_size);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev->bounce_size = BOUNCE_SIZE;
|
|
dev->bounce_buf = kmalloc(BOUNCE_SIZE, GFP_DMA);
|
|
if (!dev->bounce_buf)
|
|
return -ENOMEM;
|
|
|
|
error = ps3stor_setup(dev, ps3rom_interrupt);
|
|
if (error)
|
|
goto fail_free_bounce;
|
|
|
|
host = scsi_host_alloc(&ps3rom_host_template,
|
|
sizeof(struct ps3rom_private));
|
|
if (!host) {
|
|
dev_err(&dev->sbd.core, "%s:%u: scsi_host_alloc failed\n",
|
|
__func__, __LINE__);
|
|
goto fail_teardown;
|
|
}
|
|
|
|
priv = shost_priv(host);
|
|
ps3_system_bus_set_drvdata(&dev->sbd, host);
|
|
priv->dev = dev;
|
|
|
|
/* One device/LUN per SCSI bus */
|
|
host->max_id = 1;
|
|
host->max_lun = 1;
|
|
|
|
error = scsi_add_host(host, &dev->sbd.core);
|
|
if (error) {
|
|
dev_err(&dev->sbd.core, "%s:%u: scsi_host_alloc failed %d\n",
|
|
__func__, __LINE__, error);
|
|
error = -ENODEV;
|
|
goto fail_host_put;
|
|
}
|
|
|
|
scsi_scan_host(host);
|
|
return 0;
|
|
|
|
fail_host_put:
|
|
scsi_host_put(host);
|
|
ps3_system_bus_set_drvdata(&dev->sbd, NULL);
|
|
fail_teardown:
|
|
ps3stor_teardown(dev);
|
|
fail_free_bounce:
|
|
kfree(dev->bounce_buf);
|
|
return error;
|
|
}
|
|
|
|
static int ps3rom_remove(struct ps3_system_bus_device *_dev)
|
|
{
|
|
struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core);
|
|
struct Scsi_Host *host = ps3_system_bus_get_drvdata(&dev->sbd);
|
|
|
|
scsi_remove_host(host);
|
|
ps3stor_teardown(dev);
|
|
scsi_host_put(host);
|
|
ps3_system_bus_set_drvdata(&dev->sbd, NULL);
|
|
kfree(dev->bounce_buf);
|
|
return 0;
|
|
}
|
|
|
|
static struct ps3_system_bus_driver ps3rom = {
|
|
.match_id = PS3_MATCH_ID_STOR_ROM,
|
|
.core.name = DEVICE_NAME,
|
|
.core.owner = THIS_MODULE,
|
|
.probe = ps3rom_probe,
|
|
.remove = ps3rom_remove
|
|
};
|
|
|
|
|
|
static int __init ps3rom_init(void)
|
|
{
|
|
return ps3_system_bus_driver_register(&ps3rom);
|
|
}
|
|
|
|
static void __exit ps3rom_exit(void)
|
|
{
|
|
ps3_system_bus_driver_unregister(&ps3rom);
|
|
}
|
|
|
|
module_init(ps3rom_init);
|
|
module_exit(ps3rom_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("PS3 BD/DVD/CD-ROM Storage Driver");
|
|
MODULE_AUTHOR("Sony Corporation");
|
|
MODULE_ALIAS(PS3_MODULE_ALIAS_STOR_ROM);
|