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-rw-r--r--drivers/block/DAC960.c12
-rw-r--r--drivers/block/Kconfig17
-rw-r--r--drivers/block/Makefile1
-rw-r--r--drivers/block/brd.c5
-rw-r--r--drivers/block/cciss.c123
-rw-r--r--drivers/block/cciss.h2
-rw-r--r--drivers/block/cciss_cmd.h23
-rw-r--r--drivers/block/hd.c17
-rw-r--r--drivers/block/loop.c7
-rw-r--r--drivers/block/mg_disk.c1014
-rw-r--r--drivers/block/sx8.c6
-rw-r--r--drivers/block/ub.c20
-rw-r--r--drivers/block/umem.c5
-rw-r--r--drivers/block/xsysace.c12
14 files changed, 1212 insertions, 52 deletions
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index f6a337c34ac4..f22ed6cc69f2 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -1169,9 +1169,9 @@ static bool DAC960_V1_EnableMemoryMailboxInterface(DAC960_Controller_T
int i;
- if (pci_set_dma_mask(Controller->PCIDevice, DMA_32BIT_MASK))
+ if (pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32)))
return DAC960_Failure(Controller, "DMA mask out of range");
- Controller->BounceBufferLimit = DMA_32BIT_MASK;
+ Controller->BounceBufferLimit = DMA_BIT_MASK(32);
if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) {
CommandMailboxesSize = 0;
@@ -1372,10 +1372,10 @@ static bool DAC960_V2_EnableMemoryMailboxInterface(DAC960_Controller_T
dma_addr_t CommandMailboxDMA;
DAC960_V2_CommandStatus_T CommandStatus;
- if (!pci_set_dma_mask(Controller->PCIDevice, DMA_64BIT_MASK))
- Controller->BounceBufferLimit = DMA_64BIT_MASK;
- else if (!pci_set_dma_mask(Controller->PCIDevice, DMA_32BIT_MASK))
- Controller->BounceBufferLimit = DMA_32BIT_MASK;
+ if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(64)))
+ Controller->BounceBufferLimit = DMA_BIT_MASK(64);
+ else if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32)))
+ Controller->BounceBufferLimit = DMA_BIT_MASK(32);
else
return DAC960_Failure(Controller, "DMA mask out of range");
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index e7b8aa0cb47c..ddea8e485cc9 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -410,6 +410,23 @@ config ATA_OVER_ETH
This driver provides Support for ATA over Ethernet block
devices like the Coraid EtherDrive (R) Storage Blade.
+config MG_DISK
+ tristate "mGine mflash, gflash support"
+ depends on ARM && ATA && GPIOLIB
+ help
+ mGine mFlash(gFlash) block device driver
+
+config MG_DISK_RES
+ int "Size of reserved area before MBR"
+ depends on MG_DISK
+ default 0
+ help
+ Define size of reserved area that usually used for boot. Unit is KB.
+ All of the block device operation will be taken this value as start
+ offset
+ Examples:
+ 1024 => 1 MB
+
config SUNVDC
tristate "Sun Virtual Disk Client support"
depends on SUN_LDOMS
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 3145141cef72..7755a5e2a85e 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_BLK_CPQ_CISS_DA) += cciss.o
obj-$(CONFIG_BLK_DEV_DAC960) += DAC960.o
obj-$(CONFIG_XILINX_SYSACE) += xsysace.o
obj-$(CONFIG_CDROM_PKTCDVD) += pktcdvd.o
+obj-$(CONFIG_MG_DISK) += mg_disk.o
obj-$(CONFIG_SUNVDC) += sunvdc.o
obj-$(CONFIG_BLK_DEV_UMEM) += umem.o
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bdd4f5f45575..5f7e64ba87e5 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -275,8 +275,10 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
if (rw == READ) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
- } else
+ } else {
+ flush_dcache_page(page);
copy_to_brd(brd, mem + off, sector, len);
+ }
kunmap_atomic(mem, KM_USER0);
out:
@@ -436,6 +438,7 @@ static struct brd_device *brd_alloc(int i)
if (!brd->brd_queue)
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
+ blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
blk_queue_max_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 5d0e135824f9..4d4d5e0d3fa6 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -51,6 +51,7 @@
#include <scsi/scsi_ioctl.h>
#include <linux/cdrom.h>
#include <linux/scatterlist.h>
+#include <linux/kthread.h>
#define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin))
#define DRIVER_NAME "HP CISS Driver (v 3.6.20)"
@@ -186,6 +187,8 @@ static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size,
__u8 page_code, int cmd_type);
static void fail_all_cmds(unsigned long ctlr);
+static int scan_thread(void *data);
+static int check_for_unit_attention(ctlr_info_t *h, CommandList_struct *c);
#ifdef CONFIG_PROC_FS
static void cciss_procinit(int i);
@@ -735,6 +738,12 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return 0;
}
+static void check_ioctl_unit_attention(ctlr_info_t *host, CommandList_struct *c)
+{
+ if (c->err_info->CommandStatus == CMD_TARGET_STATUS &&
+ c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION)
+ (void)check_for_unit_attention(host, c);
+}
/*
* ioctl
*/
@@ -1029,6 +1038,8 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
iocommand.buf_size,
PCI_DMA_BIDIRECTIONAL);
+ check_ioctl_unit_attention(host, c);
+
/* Copy the error information out */
iocommand.error_info = *(c->err_info);
if (copy_to_user
@@ -1180,6 +1191,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
(dma_addr_t) temp64.val, buff_size[i],
PCI_DMA_BIDIRECTIONAL);
}
+ check_ioctl_unit_attention(host, c);
/* Copy the error information out */
ioc->error_info = *(c->err_info);
if (copy_to_user(argp, ioc, sizeof(*ioc))) {
@@ -1287,6 +1299,7 @@ static void cciss_softirq_done(struct request *rq)
{
CommandList_struct *cmd = rq->completion_data;
ctlr_info_t *h = hba[cmd->ctlr];
+ unsigned int nr_bytes;
unsigned long flags;
u64bit temp64;
int i, ddir;
@@ -1308,7 +1321,14 @@ static void cciss_softirq_done(struct request *rq)
printk("Done with %p\n", rq);
#endif /* CCISS_DEBUG */
- if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, blk_rq_bytes(rq)))
+ /*
+ * Store the full size and set the residual count for pc requests
+ */
+ nr_bytes = blk_rq_bytes(rq);
+ if (blk_pc_request(rq))
+ rq->data_len = cmd->err_info->ResidualCnt;
+
+ if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, nr_bytes))
BUG();
spin_lock_irqsave(&h->lock, flags);
@@ -2585,12 +2605,14 @@ static inline unsigned int make_status_bytes(unsigned int scsi_status_byte,
((driver_byte & 0xff) << 24);
}
-static inline int evaluate_target_status(CommandList_struct *cmd)
+static inline int evaluate_target_status(ctlr_info_t *h,
+ CommandList_struct *cmd, int *retry_cmd)
{
unsigned char sense_key;
unsigned char status_byte, msg_byte, host_byte, driver_byte;
int error_value;
+ *retry_cmd = 0;
/* If we get in here, it means we got "target status", that is, scsi status */
status_byte = cmd->err_info->ScsiStatus;
driver_byte = DRIVER_OK;
@@ -2618,6 +2640,11 @@ static inline int evaluate_target_status(CommandList_struct *cmd)
if (((sense_key == 0x0) || (sense_key == 0x1)) && !blk_pc_request(cmd->rq))
error_value = 0;
+ if (check_for_unit_attention(h, cmd)) {
+ *retry_cmd = !blk_pc_request(cmd->rq);
+ return 0;
+ }
+
if (!blk_pc_request(cmd->rq)) { /* Not SG_IO or similar? */
if (error_value != 0)
printk(KERN_WARNING "cciss: cmd %p has CHECK CONDITION"
@@ -2657,7 +2684,7 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd,
switch (cmd->err_info->CommandStatus) {
case CMD_TARGET_STATUS:
- rq->errors = evaluate_target_status(cmd);
+ rq->errors = evaluate_target_status(h, cmd, &retry_cmd);
break;
case CMD_DATA_UNDERRUN:
if (blk_fs_request(cmd->rq)) {
@@ -3008,6 +3035,63 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id)
return IRQ_HANDLED;
}
+static int scan_thread(void *data)
+{
+ ctlr_info_t *h = data;
+ int rc;
+ DECLARE_COMPLETION_ONSTACK(wait);
+ h->rescan_wait = &wait;
+
+ for (;;) {
+ rc = wait_for_completion_interruptible(&wait);
+ if (kthread_should_stop())
+ break;
+ if (!rc)
+ rebuild_lun_table(h, 0);
+ }
+ return 0;
+}
+
+static int check_for_unit_attention(ctlr_info_t *h, CommandList_struct *c)
+{
+ if (c->err_info->SenseInfo[2] != UNIT_ATTENTION)
+ return 0;
+
+ switch (c->err_info->SenseInfo[12]) {
+ case STATE_CHANGED:
+ printk(KERN_WARNING "cciss%d: a state change "
+ "detected, command retried\n", h->ctlr);
+ return 1;
+ break;
+ case LUN_FAILED:
+ printk(KERN_WARNING "cciss%d: LUN failure "
+ "detected, action required\n", h->ctlr);
+ return 1;
+ break;
+ case REPORT_LUNS_CHANGED:
+ printk(KERN_WARNING "cciss%d: report LUN data "
+ "changed\n", h->ctlr);
+ if (h->rescan_wait)
+ complete(h->rescan_wait);
+ return 1;
+ break;
+ case POWER_OR_RESET:
+ printk(KERN_WARNING "cciss%d: a power on "
+ "or device reset detected\n", h->ctlr);
+ return 1;
+ break;
+ case UNIT_ATTENTION_CLEARED:
+ printk(KERN_WARNING "cciss%d: unit attention "
+ "cleared by another initiator\n", h->ctlr);
+ return 1;
+ break;
+ default:
+ printk(KERN_WARNING "cciss%d: unknown "
+ "unit attention detected\n", h->ctlr);
+ return 1;
+ }
+}
+
/*
* We cannot read the structure directly, for portability we must use
* the io functions.
@@ -3181,12 +3265,21 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
*/
cciss_interrupt_mode(c, pdev, board_id);
- /*
- * Memory base addr is first addr , the second points to the config
- * table
- */
+ /* find the memory BAR */
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ if (pci_resource_flags(pdev, i) & IORESOURCE_MEM)
+ break;
+ }
+ if (i == DEVICE_COUNT_RESOURCE) {
+ printk(KERN_WARNING "cciss: No memory BAR found\n");
+ err = -ENODEV;
+ goto err_out_free_res;
+ }
+
+ c->paddr = pci_resource_start(pdev, i); /* addressing mode bits
+ * already removed
+ */
- c->paddr = pci_resource_start(pdev, 0); /* addressing mode bits already removed */
#ifdef CCISS_DEBUG
printk("address 0 = %lx\n", c->paddr);
#endif /* CCISS_DEBUG */
@@ -3412,7 +3505,7 @@ static __devinit int cciss_message(struct pci_dev *pdev, unsigned char opcode, u
/* The Inbound Post Queue only accepts 32-bit physical addresses for the
CCISS commands, so they must be allocated from the lower 4GiB of
memory. */
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
iounmap(vaddr);
return -ENOMEM;
@@ -3637,9 +3730,9 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
hba[i]->pdev = pdev;
/* configure PCI DMA stuff */
- if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK))
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
dac = 1;
- else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK))
+ else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
dac = 0;
else {
printk(KERN_ERR "cciss: no suitable DMA available\n");
@@ -3753,6 +3846,11 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
hba[i]->busy_initializing = 0;
rebuild_lun_table(hba[i], 1);
+ hba[i]->cciss_scan_thread = kthread_run(scan_thread, hba[i],
+ "cciss_scan%02d", i);
+ if (IS_ERR(hba[i]->cciss_scan_thread))
+ return PTR_ERR(hba[i]->cciss_scan_thread);
+
return 1;
clean4:
@@ -3828,6 +3926,7 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev)
printk(KERN_ERR "cciss: Unable to remove device \n");
return;
}
+
tmp_ptr = pci_get_drvdata(pdev);
i = tmp_ptr->ctlr;
if (hba[i] == NULL) {
@@ -3836,6 +3935,8 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev)
return;
}
+ kthread_stop(hba[i]->cciss_scan_thread);
+
remove_proc_entry(hba[i]->devname, proc_cciss);
unregister_blkdev(hba[i]->major, hba[i]->devname);
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 15e2b84734e3..703e08038fb9 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -121,6 +121,8 @@ struct ctlr_info
struct sendcmd_reject_list scsi_rejects;
#endif
unsigned char alive;
+ struct completion *rescan_wait;
+ struct task_struct *cciss_scan_thread;
};
/* Defining the diffent access_menthods */
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 24e22dea1a99..40b1b92dae7f 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -25,6 +25,29 @@
#define CMD_TIMEOUT 0x000B
#define CMD_UNABORTABLE 0x000C
+/* Unit Attentions ASC's as defined for the MSA2012sa */
+#define POWER_OR_RESET 0x29
+#define STATE_CHANGED 0x2a
+#define UNIT_ATTENTION_CLEARED 0x2f
+#define LUN_FAILED 0x3e
+#define REPORT_LUNS_CHANGED 0x3f
+
+/* Unit Attentions ASCQ's as defined for the MSA2012sa */
+
+ /* These ASCQ's defined for ASC = POWER_OR_RESET */
+#define POWER_ON_RESET 0x00
+#define POWER_ON_REBOOT 0x01
+#define SCSI_BUS_RESET 0x02
+#define MSA_TARGET_RESET 0x03
+#define CONTROLLER_FAILOVER 0x04
+#define TRANSCEIVER_SE 0x05
+#define TRANSCEIVER_LVD 0x06
+
+ /* These ASCQ's defined for ASC = STATE_CHANGED */
+#define RESERVATION_PREEMPTED 0x03
+#define ASYM_ACCESS_CHANGED 0x06
+#define LUN_CAPACITY_CHANGED 0x09
+
//transfer direction
#define XFER_NONE 0x00
#define XFER_WRITE 0x01
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index 3c11f062a18c..baaa9e486e50 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -509,7 +509,6 @@ ok_to_write:
if (i > 0) {
SET_HANDLER(&write_intr);
outsw(HD_DATA, req->buffer, 256);
- local_irq_enable();
} else {
#if (HD_DELAY > 0)
last_req = read_timer();
@@ -541,8 +540,7 @@ static void hd_times_out(unsigned long dummy)
if (!CURRENT)
return;
- disable_irq(HD_IRQ);
- local_irq_enable();
+ spin_lock_irq(hd_queue->queue_lock);
reset = 1;
name = CURRENT->rq_disk->disk_name;
printk("%s: timeout\n", name);
@@ -552,9 +550,8 @@ static void hd_times_out(unsigned long dummy)
#endif
end_request(CURRENT, 0);
}
- local_irq_disable();
hd_request();
- enable_irq(HD_IRQ);
+ spin_unlock_irq(hd_queue->queue_lock);
}
static int do_special_op(struct hd_i_struct *disk, struct request *req)
@@ -592,7 +589,6 @@ static void hd_request(void)
return;
repeat:
del_timer(&device_timer);
- local_irq_enable();
req = CURRENT;
if (!req) {
@@ -601,7 +597,6 @@ repeat:
}
if (reset) {
- local_irq_disable();
reset_hd();
return;
}
@@ -660,9 +655,7 @@ repeat:
static void do_hd_request(struct request_queue *q)
{
- disable_irq(HD_IRQ);
hd_request();
- enable_irq(HD_IRQ);
}
static int hd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
@@ -684,12 +677,16 @@ static irqreturn_t hd_interrupt(int irq, void *dev_id)
{
void (*handler)(void) = do_hd;
+ spin_lock(hd_queue->queue_lock);
+
do_hd = NULL;
del_timer(&device_timer);
if (!handler)
handler = unexpected_hd_interrupt;
handler();
- local_irq_enable();
+
+ spin_unlock(hd_queue->queue_lock);
+
return IRQ_HANDLED;
}
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 40b17d3b55a1..ddae80825899 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1431,6 +1431,7 @@ static int lo_open(struct block_device *bdev, fmode_t mode)
static int lo_release(struct gendisk *disk, fmode_t mode)
{
struct loop_device *lo = disk->private_data;
+ int err;
mutex_lock(&lo->lo_ctl_mutex);
@@ -1442,7 +1443,9 @@ static int lo_release(struct gendisk *disk, fmode_t mode)
* In autoclear mode, stop the loop thread
* and remove configuration after last close.
*/
- loop_clr_fd(lo, NULL);
+ err = loop_clr_fd(lo, NULL);
+ if (!err)
+ goto out_unlocked;
} else {
/*
* Otherwise keep thread (if running) and config,
@@ -1453,7 +1456,7 @@ static int lo_release(struct gendisk *disk, fmode_t mode)
out:
mutex_unlock(&lo->lo_ctl_mutex);
-
+out_unlocked:
return 0;
}
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
new file mode 100644
index 000000000000..f3898353d0a8
--- /dev/null
+++ b/drivers/block/mg_disk.c
@@ -0,0 +1,1014 @@
+/*
+ * drivers/block/mg_disk.c
+ *
+ * Support for the mGine m[g]flash IO mode.
+ * Based on legacy hd.c
+ *
+ * (c) 2008 mGine Co.,LTD
+ * (c) 2008 unsik Kim <donari75@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/libata.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/mg_disk.h>
+
+#define MG_RES_SEC (CONFIG_MG_DISK_RES << 1)
+
+static void mg_request(struct request_queue *);
+
+static void mg_dump_status(const char *msg, unsigned int stat,
+ struct mg_host *host)
+{
+ char *name = MG_DISK_NAME;
+ struct request *req;
+
+ if (host->breq) {
+ req = elv_next_request(host->breq);
+ if (req)
+ name = req->rq_disk->disk_name;
+ }
+
+ printk(KERN_ERR "%s: %s: status=0x%02x { ", name, msg, stat & 0xff);
+ if (stat & MG_REG_STATUS_BIT_BUSY)
+ printk("Busy ");
+ if (stat & MG_REG_STATUS_BIT_READY)
+ printk("DriveReady ");
+ if (stat & MG_REG_STATUS_BIT_WRITE_FAULT)
+ printk("WriteFault ");
+ if (stat & MG_REG_STATUS_BIT_SEEK_DONE)
+ printk("SeekComplete ");
+ if (stat & MG_REG_STATUS_BIT_DATA_REQ)
+ printk("DataRequest ");
+ if (stat & MG_REG_STATUS_BIT_CORRECTED_ERROR)
+ printk("CorrectedError ");
+ if (stat & MG_REG_STATUS_BIT_ERROR)
+ printk("Error ");
+ printk("}\n");
+ if ((stat & MG_REG_STATUS_BIT_ERROR) == 0) {
+ host->error = 0;
+ } else {
+ host->error = inb((unsigned long)host->dev_base + MG_REG_ERROR);
+ printk(KERN_ERR "%s: %s: error=0x%02x { ", name, msg,
+ host->error & 0xff);
+ if (host->error & MG_REG_ERR_BBK)
+ printk("BadSector ");
+ if (host->error & MG_REG_ERR_UNC)
+ printk("UncorrectableError ");
+ if (host->error & MG_REG_ERR_IDNF)
+ printk("SectorIdNotFound ");
+ if (host->error & MG_REG_ERR_ABRT)
+ printk("DriveStatusError ");
+ if (host->error & MG_REG_ERR_AMNF)
+ printk("AddrMarkNotFound ");
+ printk("}");
+ if (host->error &
+ (MG_REG_ERR_BBK | MG_REG_ERR_UNC |
+ MG_REG_ERR_IDNF | MG_REG_ERR_AMNF)) {
+ if (host->breq) {
+ req = elv_next_request(host->breq);
+ if (req)
+ printk(", sector=%u", (u32)req->sector);
+ }
+
+ }
+ printk("\n");
+ }
+}
+
+static unsigned int mg_wait(struct mg_host *host, u32 expect, u32 msec)
+{
+ u8 status;
+ unsigned long expire, cur_jiffies;
+ struct mg_drv_data *prv_data = host->dev->platform_data;
+
+ host->error = MG_ERR_NONE;
+ expire = jiffies + msecs_to_jiffies(msec);
+
+ status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+
+ do {
+ cur_jiffies = jiffies;
+ if (status & MG_REG_STATUS_BIT_BUSY) {
+ if (expect == MG_REG_STATUS_BIT_BUSY)
+ break;
+ } else {
+ /* Check the error condition! */
+ if (status & MG_REG_STATUS_BIT_ERROR) {
+ mg_dump_status("mg_wait", status, host);
+ break;
+ }
+
+ if (expect == MG_STAT_READY)
+ if (MG_READY_OK(status))
+ break;
+
+ if (expect == MG_REG_STATUS_BIT_DATA_REQ)
+ if (status & MG_REG_STATUS_BIT_DATA_REQ)
+ break;
+ }
+ if (!msec) {
+ mg_dump_status("not ready", status, host);
+ return MG_ERR_INV_STAT;
+ }
+ if (prv_data->use_polling)
+ msleep(1);
+
+ status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+ } while (time_before(cur_jiffies, expire));
+
+ if (time_after_eq(cur_jiffies, expire) && msec)
+ host->error = MG_ERR_TIMEOUT;
+
+ return host->error;
+}
+
+static unsigned int mg_wait_rstout(u32 rstout, u32 msec)
+{
+ unsigned long expire;
+
+ expire = jiffies + msecs_to_jiffies(msec);
+ while (time_before(jiffies, expire)) {
+ if (gpio_get_value(rstout) == 1)
+ return MG_ERR_NONE;
+ msleep(10);
+ }
+
+ return MG_ERR_RSTOUT;
+}
+
+static void mg_unexpected_intr(struct mg_host *host)
+{
+ u32 status = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+
+ mg_dump_status("mg_unexpected_intr", status, host);
+}
+
+static irqreturn_t mg_irq(int irq, void *dev_id)
+{
+ struct mg_host *host = dev_id;
+ void (*handler)(struct mg_host *) = host->mg_do_intr;
+
+ spin_lock(&host->lock);
+
+ host->mg_do_intr = NULL;
+ del_timer(&host->timer);
+ if (!handler)
+ handler = mg_unexpected_intr;
+ handler(host);
+
+ spin_unlock(&host->lock);
+
+ return IRQ_HANDLED;
+}
+
+static int mg_get_disk_id(struct mg_host *host)
+{
+ u32 i;
+ s32 err;
+ const u16 *id = host->id;
+ struct mg_drv_data *prv_data = host->dev->platform_data;
+ char fwrev[ATA_ID_FW_REV_LEN + 1];
+ char model[ATA_ID_PROD_LEN + 1];
+ char serial[ATA_ID_SERNO_LEN + 1];
+
+ if (!prv_data->use_polling)
+ outb(MG_REG_CTRL_INTR_DISABLE,
+ (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+
+ outb(MG_CMD_ID, (unsigned long)host->dev_base + MG_REG_COMMAND);
+ err = mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, MG_TMAX_WAIT_RD_DRQ);
+ if (err)
+ return err;
+
+ for (i = 0; i < (MG_SECTOR_SIZE >> 1); i++)
+ host->id[i] = le16_to_cpu(inw((unsigned long)host->dev_base +
+ MG_BUFF_OFFSET + i * 2));
+
+ outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND);
+ err = mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD);
+ if (err)
+ return err;
+
+ if ((id[ATA_ID_FIELD_VALID] & 1) == 0)
+ return MG_ERR_TRANSLATION;
+
+ host->n_sectors = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
+ host->cyls = id[ATA_ID_CYLS];
+ host->heads = id[ATA_ID_HEADS];
+ host->sectors = id[ATA_ID_SECTORS];
+
+ if (MG_RES_SEC && host->heads && host->sectors) {
+ /* modify cyls, n_sectors */
+ host->cyls = (host->n_sectors - MG_RES_SEC) /
+ host->heads / host->sectors;
+ host->nres_sectors = host->n_sectors - host->cyls *
+ host->heads * host->sectors;
+ 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));
+ 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);
+ printk(KERN_INFO "mg_disk: %d + reserved %d sectors\n",
+ host->n_sectors, host->nres_sectors);
+
+ if (!prv_data->use_polling)
+ outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+
+ return err;
+}
+
+
+static int mg_disk_init(struct mg_host *host)
+{
+ struct mg_drv_data *prv_data = host->dev->platform_data;
+ s32 err;
+ u8 init_status;
+
+ /* hdd rst low */
+ gpio_set_value(host->rst, 0);
+ err = mg_wait(host, MG_REG_STATUS_BIT_BUSY, MG_TMAX_RST_TO_BUSY);
+ if (err)
+ return err;
+
+ /* hdd rst high */
+ gpio_set_value(host->rst, 1);
+ err = mg_wait(host, MG_STAT_READY, MG_TMAX_HDRST_TO_RDY);
+ if (err)
+ return err;
+
+ /* soft reset on */
+ outb(MG_REG_CTRL_RESET |
+ (prv_data->use_polling ? MG_REG_CTRL_INTR_DISABLE :
+ MG_REG_CTRL_INTR_ENABLE),
+ (unsigned long)host->dev_base + MG_REG_DRV_CTRL);
+ err = mg_wait(host, MG_REG_STATUS_BIT_BUSY, MG_TMAX_RST_TO_BUSY);
+ if (err)
+ return err;
+
+ /* soft reset off */
+ outb(prv_data->use_polling ? MG_REG_CTRL_INTR_DISABLE :
+ MG_REG_CTRL_INTR_ENABLE,
+ (unsigned long)host->dev_base + MG_REG_DRV_CTRL);
+ err = mg_wait(host, MG_STAT_READY, MG_TMAX_SWRST_TO_RDY);
+ if (err)
+ return err;
+
+ init_status = inb((unsigned long)host->dev_base + MG_REG_STATUS) & 0xf;
+
+ if (init_status == 0xf)
+ return MG_ERR_INIT_STAT;
+
+ return err;
+}
+
+static void mg_bad_rw_intr(struct mg_host *host)
+{
+ struct request *req = elv_next_request(host->breq);
+ if (req != NULL)
+ if (++req->errors >= MG_MAX_ERRORS ||
+ host->error == MG_ERR_TIMEOUT)
+ end_request(req, 0);
+}
+
+static unsigned int mg_out(struct mg_host *host,
+ unsigned int sect_num,
+ unsigned int sect_cnt,
+ unsigned int cmd,
+ void (*intr_addr)(struct mg_host *))
+{
+ struct mg_drv_data *prv_data = host->dev->platform_data;
+
+ if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD))
+ return host->error;
+
+ if (!prv_data->use_polling) {
+ host->mg_do_intr = intr_addr;
+ mod_timer(&host->timer, jiffies + 3 * HZ);
+ }
+ if (MG_RES_SEC)
+ sect_num += MG_RES_SEC;
+ outb((u8)sect_cnt, (unsigned long)host->dev_base + MG_REG_SECT_CNT);
+ outb((u8)sect_num, (unsigned long)host->dev_base + MG_REG_SECT_NUM);
+ outb((u8)(sect_num >> 8), (unsigned long)host->dev_base +
+ MG_REG_CYL_LOW);
+ outb((u8)(sect_num >> 16), (unsigned long)host->dev_base +
+ MG_REG_CYL_HIGH);
+ outb((u8)((sect_num >> 24) | MG_REG_HEAD_LBA_MODE),
+ (unsigned long)host->dev_base + MG_REG_DRV_HEAD);
+ outb(cmd, (unsigned long)host->dev_base + MG_REG_COMMAND);
+ return MG_ERR_NONE;
+}
+
+static void mg_read(struct request *req)
+{
+ u32 remains, j;
+ struct mg_host *host = req->rq_disk->private_data;
+
+ remains = req->nr_sectors;
+
+ if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, NULL) !=
+ MG_ERR_NONE)
+ mg_bad_rw_intr(host);
+
+ MG_DBG("requested %d sects (from %ld), buffer=0x%p\n",
+ remains, req->sector, req->buffer);
+
+ while (remains) {
+ if (mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ,
+ MG_TMAX_WAIT_RD_DRQ) != MG_ERR_NONE) {
+ mg_bad_rw_intr(host);
+ return;
+ }
+ for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) {
+ *(u16 *)req->buffer =
+ inw((unsigned long)host->dev_base +
+ MG_BUFF_OFFSET + (j << 1));
+ req->buffer += 2;
+ }
+
+ req->sector++;
+ req->errors = 0;
+ remains = --req->nr_sectors;
+ --req->current_nr_sectors;
+
+ if (req->current_nr_sectors <= 0) {
+ MG_DBG("remain : %d sects\n", remains);
+ end_request(req, 1);
+ if (remains > 0)
+ req = elv_next_request(host->breq);
+ }
+
+ outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base +
+ MG_REG_COMMAND);
+ }
+}
+
+static void mg_write(struct request *req)
+{
+ u32 remains, j;
+ struct mg_host *host = req->rq_disk->private_data;
+
+ remains = req->nr_sectors;
+
+ if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, NULL) !=
+ MG_ERR_NONE) {
+ mg_bad_rw_intr(host);
+ return;
+ }
+
+
+ MG_DBG("requested %d sects (from %ld), buffer=0x%p\n",
+ remains, req->sector, req->buffer);
+ while (remains) {
+ if (mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ,
+ MG_TMAX_WAIT_WR_DRQ) != MG_ERR_NONE) {
+ mg_bad_rw_intr(host);
+ return;
+ }
+ for (j = 0; j < MG_SECTOR_SIZE >> 1; j++) {
+ outw(*(u16 *)req->buffer,
+ (unsigned long)host->dev_base +
+ MG_BUFF_OFFSET + (j << 1));
+ req->buffer += 2;
+ }
+ req->sector++;
+ remains = --req->nr_sectors;
+ --req->current_nr_sectors;
+
+ if (req->current_nr_sectors <= 0) {
+ MG_DBG("remain : %d sects\n", remains);
+ end_request(req, 1);
+ if (remains > 0)
+ req = elv_next_request(host->breq);
+ }
+
+ outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base +
+ MG_REG_COMMAND);
+ }
+}
+
+static void mg_read_intr(struct mg_host *host)
+{
+ u32 i;
+ struct request *req;
+
+ /* check status */
+ do {
+ i = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+ if (i & MG_REG_STATUS_BIT_BUSY)
+ break;
+ if (!MG_READY_OK(i))
+ break;
+ if (i & MG_REG_STATUS_BIT_DATA_REQ)
+ goto ok_to_read;
+ } while (0);
+ mg_dump_status("mg_read_intr", i, host);
+ mg_bad_rw_intr(host);
+ mg_request(host->breq);
+ return;
+
+ok_to_read:
+ /* get current segment of request */
+ req = elv_next_request(host->breq);
+
+ /* read 1 sector */
+ for (i = 0; i < MG_SECTOR_SIZE >> 1; i++) {
+ *(u16 *)req->buffer =
+ inw((unsigned long)host->dev_base + MG_BUFF_OFFSET +
+ (i << 1));
+ req->buffer += 2;
+ }
+
+ /* manipulate request */
+ MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n",
+ req->sector, req->nr_sectors - 1, req->buffer);
+
+ req->sector++;
+ req->errors = 0;
+ i = --req->nr_sectors;
+ --req->current_nr_sectors;
+
+ /* let know if current segment done */
+ if (req->current_nr_sectors <= 0)
+ end_request(req, 1);
+
+ /* set handler if read remains */
+ if (i > 0) {
+ host->mg_do_intr = mg_read_intr;
+ mod_timer(&host->timer, jiffies + 3 * HZ);
+ }
+
+ /* send read confirm */
+ outb(MG_CMD_RD_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND);
+
+ /* goto next request */
+ if (!i)
+ mg_request(host->breq);
+}
+
+static void mg_write_intr(struct mg_host *host)
+{
+ u32 i, j;
+ u16 *buff;
+ struct request *req;
+
+ /* get current segment of request */
+ req = elv_next_request(host->breq);
+
+ /* check status */
+ do {
+ i = inb((unsigned long)host->dev_base + MG_REG_STATUS);
+ if (i & MG_REG_STATUS_BIT_BUSY)
+ break;
+ if (!MG_READY_OK(i))
+ break;
+ if ((req->nr_sectors <= 1) || (i & MG_REG_STATUS_BIT_DATA_REQ))
+ goto ok_to_write;
+ } while (0);
+ mg_dump_status("mg_write_intr", i, host);
+ mg_bad_rw_intr(host);
+ mg_request(host->breq);
+ return;
+
+ok_to_write:
+ /* manipulate request */
+ req->sector++;
+ i = --req->nr_sectors;
+ --req->current_nr_sectors;
+ req->buffer += MG_SECTOR_SIZE;
+
+ /* let know if current segment or all done */
+ if (!i || (req->bio && req->current_nr_sectors <= 0))
+ end_request(req, 1);
+
+ /* write 1 sector and set handler if remains */
+ if (i > 0) {
+ buff = (u16 *)req->buffer;
+ for (j = 0; j < MG_STORAGE_BUFFER_SIZE >> 1; j++) {
+ outw(*buff, (unsigned long)host->dev_base +
+ MG_BUFF_OFFSET + (j << 1));
+ buff++;
+ }
+ MG_DBG("sector %ld, remaining=%ld, buffer=0x%p\n",
+ req->sector, req->nr_sectors, req->buffer);
+ host->mg_do_intr = mg_write_intr;
+ mod_timer(&host->timer, jiffies + 3 * HZ);
+ }
+
+ /* send write confirm */
+ outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base + MG_REG_COMMAND);
+
+ if (!i)
+ mg_request(host->breq);
+}
+
+void mg_times_out(unsigned long data)
+{
+ struct mg_host *host = (struct mg_host *)data;
+ char *name;
+ struct request *req;
+
+ spin_lock_irq(&host->lock);
+
+ req = elv_next_request(host->breq);
+ if (!req)
+ goto out_unlock;
+
+ host->mg_do_intr = NULL;
+
+ name = req->rq_disk->disk_name;
+ printk(KERN_DEBUG "%s: timeout\n", name);
+
+ host->error = MG_ERR_TIMEOUT;
+ mg_bad_rw_intr(host);
+
+ mg_request(host->breq);
+out_unlock:
+ spin_unlock_irq(&host->lock);
+}
+
+static void mg_request_poll(struct request_queue *q)
+{
+ struct request *req;
+ struct mg_host *host;
+
+ while ((req = elv_next_request(q)) != NULL) {
+ host = req->rq_disk->private_data;
+ if (blk_fs_request(req)) {
+ switch (rq_data_dir(req)) {
+ case READ:
+ mg_read(req);
+ break;
+ case WRITE:
+ mg_write(req);
+ break;
+ default:
+ printk(KERN_WARNING "%s:%d unknown command\n",
+ __func__, __LINE__);
+ end_request(req, 0);
+ break;
+ }
+ }
+ }
+}
+
+static unsigned int mg_issue_req(struct request *req,
+ struct mg_host *host,
+ unsigned int sect_num,
+ unsigned int sect_cnt)
+{
+ u16 *buff;
+ u32 i;
+
+ switch (rq_data_dir(req)) {
+ case READ:
+ if (mg_out(host, sect_num, sect_cnt, MG_CMD_RD, &mg_read_intr)
+ != MG_ERR_NONE) {
+ mg_bad_rw_intr(host);
+ return host->error;
+ }
+ break;
+ case WRITE:
+ /* TODO : handler */
+ outb(MG_REG_CTRL_INTR_DISABLE,
+ (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+ if (mg_out(host, sect_num, sect_cnt, MG_CMD_WR, &mg_write_intr)
+ != MG_ERR_NONE) {
+ mg_bad_rw_intr(host);
+ return host->error;
+ }
+ del_timer(&host->timer);
+ mg_wait(host, MG_REG_STATUS_BIT_DATA_REQ, MG_TMAX_WAIT_WR_DRQ);
+ outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+ if (host->error) {
+ mg_bad_rw_intr(host);
+ return host->error;
+ }
+ buff = (u16 *)req->buffer;
+ for (i = 0; i < MG_SECTOR_SIZE >> 1; i++) {
+ outw(*buff, (unsigned long)host->dev_base +
+ MG_BUFF_OFFSET + (i << 1));
+ buff++;
+ }
+ mod_timer(&host->timer, jiffies + 3 * HZ);
+ outb(MG_CMD_WR_CONF, (unsigned long)host->dev_base +
+ MG_REG_COMMAND);
+ break;
+ default:
+ printk(KERN_WARNING "%s:%d unknown command\n",
+ __func__, __LINE__);
+ end_request(req, 0);
+ break;
+ }
+ return MG_ERR_NONE;
+}
+
+/* This function also called from IRQ context */
+static void mg_request(struct request_queue *q)
+{
+ struct request *req;
+ struct mg_host *host;
+ u32 sect_num, sect_cnt;
+
+ while (1) {
+ req = elv_next_request(q);
+ if (!req)
+ return;
+
+ host = req->rq_disk->private_data;
+
+ /* check unwanted request call */
+ if (host->mg_do_intr)
+ return;
+
+ del_timer(&host->timer);
+
+ sect_num = req->sector;
+ /* deal whole segments */
+ sect_cnt = req->nr_sectors;
+
+ /* sanity check */
+ if (sect_num >= get_capacity(req->rq_disk) ||
+ ((sect_num + sect_cnt) >
+ get_capacity(req->rq_disk))) {
+ printk(KERN_WARNING
+ "%s: bad access: sector=%d, count=%d\n",
+ req->rq_disk->disk_name,
+ sect_num, sect_cnt);
+ end_request(req, 0);
+ continue;
+ }
+
+ if (!blk_fs_request(req))
+ return;
+
+ if (!mg_issue_req(req, host, sect_num, sect_cnt))
+ return;
+ }
+}
+
+static int mg_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ struct mg_host *host = bdev->bd_disk->private_data;
+
+ geo->cylinders = (unsigned short)host->cyls;
+ geo->heads = (unsigned char)host->heads;
+ geo->sectors = (unsigned char)host->sectors;
+ return 0;
+}
+
+static struct block_device_operations mg_disk_ops = {
+ .getgeo = mg_getgeo
+};
+
+static int mg_suspend(struct platform_device *plat_dev, pm_message_t state)
+{
+ struct mg_drv_data *prv_data = plat_dev->dev.platform_data;
+ struct mg_host *host = prv_data->host;
+
+ if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD))
+ return -EIO;
+
+ if (!prv_data->use_polling)
+ outb(MG_REG_CTRL_INTR_DISABLE,
+ (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+
+ outb(MG_CMD_SLEEP, (unsigned long)host->dev_base + MG_REG_COMMAND);
+ /* wait until mflash deep sleep */
+ msleep(1);
+
+ if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD)) {
+ if (!prv_data->use_polling)
+ outb(MG_REG_CTRL_INTR_ENABLE,
+ (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int mg_resume(struct platform_device *plat_dev)
+{
+ struct mg_drv_data *prv_data = plat_dev->dev.platform_data;
+ struct mg_host *host = prv_data->host;
+
+ if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD))
+ return -EIO;
+
+ outb(MG_CMD_WAKEUP, (unsigned long)host->dev_base + MG_REG_COMMAND);
+ /* wait until mflash wakeup */
+ msleep(1);
+
+ if (mg_wait(host, MG_STAT_READY, MG_TMAX_CONF_TO_CMD))
+ return -EIO;
+
+ if (!prv_data->use_polling)
+ outb(MG_REG_CTRL_INTR_ENABLE, (unsigned long)host->dev_base +
+ MG_REG_DRV_CTRL);
+
+ return 0;
+}
+
+static int mg_probe(struct platform_device *plat_dev)
+{
+ struct mg_host *host;
+ struct resource *rsc;
+ struct mg_drv_data *prv_data = plat_dev->dev.platform_data;
+ int err = 0;
+
+ if (!prv_data) {
+ printk(KERN_ERR "%s:%d fail (no driver_data)\n",
+ __func__, __LINE__);
+ err = -EINVAL;
+ goto probe_err;
+ }
+
+ /* alloc mg_host */
+ host = kzalloc(sizeof(struct mg_host), GFP_KERNEL);
+ if (!host) {
+ printk(KERN_ERR "%s:%d fail (no memory for mg_host)\n",
+ __func__, __LINE__);
+ err = -ENOMEM;
+ goto probe_err;
+ }
+ host->major = MG_DISK_MAJ;
+
+ /* link each other */
+ prv_data->host = host;
+ host->dev = &plat_dev->dev;
+
+ /* io remap */
+ rsc = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
+ if (!rsc) {
+ printk(KERN_ERR "%s:%d platform_get_resource fail\n",
+ __func__, __LINE__);
+ err = -EINVAL;
+ goto probe_err_2;
+ }
+ host->dev_base = ioremap(rsc->start , rsc->end + 1);
+ if (!host->dev_base) {
+ printk(KERN_ERR "%s:%d ioremap fail\n",
+ __func__, __LINE__);
+ err = -EIO;
+ goto probe_err_2;
+ }
+ MG_DBG("dev_base = 0x%x\n", (u32)host->dev_base);
+
+ /* get reset pin */
+ rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO,
+ MG_RST_PIN);
+ if (!rsc) {
+ printk(KERN_ERR "%s:%d get reset pin fail\n",
+ __func__, __LINE__);
+ err = -EIO;
+ goto probe_err_3;
+ }
+ host->rst = rsc->start;
+
+ /* init rst pin */
+ err = gpio_request(host->rst, MG_RST_PIN);
+ if (err)
+ goto probe_err_3;
+ gpio_direction_output(host->rst, 1);
+
+ /* reset out pin */
+ if (!(prv_data->dev_attr & MG_DEV_MASK))
+ goto probe_err_3a;
+
+ if (prv_data->dev_attr != MG_BOOT_DEV) {
+ rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO,
+ MG_RSTOUT_PIN);
+ if (!rsc) {
+ printk(KERN_ERR "%s:%d get reset-out pin fail\n",
+ __func__, __LINE__);
+ err = -EIO;
+ goto probe_err_3a;
+ }
+ host->rstout = rsc->start;
+ err = gpio_request(host->rstout, MG_RSTOUT_PIN);
+ if (err)
+ goto probe_err_3a;
+ gpio_direction_input(host->rstout);
+ }
+
+ /* disk reset */
+ if (prv_data->dev_attr == MG_STORAGE_DEV) {
+ /* If POR seq. not yet finised, wait */
+ err = mg_wait_rstout(host->rstout, MG_TMAX_RSTOUT);
+ if (err)
+ goto probe_err_3b;
+ err = mg_disk_init(host);
+ if (err) {
+ printk(KERN_ERR "%s:%d fail (err code : %d)\n",
+ __func__, __LINE__, err);
+ err = -EIO;
+ goto probe_err_3b;
+ }
+ }
+
+ /* get irq resource */
+ if (!prv_data->use_polling) {
+ host->irq = platform_get_irq(plat_dev, 0);
+ if (host->irq == -ENXIO) {
+ err = host->irq;
+ goto probe_err_3b;
+ }
+ err = request_irq(host->irq, mg_irq,
+ IRQF_DISABLED | IRQF_TRIGGER_RISING,
+ MG_DEV_NAME, host);
+ if (err) {
+ printk(KERN_ERR "%s:%d fail (request_irq err=%d)\n",
+ __func__, __LINE__, err);
+ goto probe_err_3b;
+ }
+
+ }
+
+ /* get disk id */
+ err = mg_get_disk_id(host);
+ if (err) {
+ printk(KERN_ERR "%s:%d fail (err code : %d)\n",
+ __func__, __LINE__, err);
+ err = -EIO;
+ goto probe_err_4;
+ }
+
+ err = register_blkdev(host->major, MG_DISK_NAME);
+ if (err < 0) {
+ printk(KERN_ERR "%s:%d register_blkdev fail (err code : %d)\n",
+ __func__, __LINE__, err);
+ goto probe_err_4;
+ }
+ if (!host->major)
+ host->major = err;
+
+ spin_lock_init(&host->lock);
+
+ if (prv_data->use_polling)
+ host->breq = blk_init_queue(mg_request_poll, &host->lock);
+ else
+ host->breq = blk_init_queue(mg_request, &host->lock);
+
+ if (!host->breq) {
+ err = -ENOMEM;
+ printk(KERN_ERR "%s:%d (blk_init_queue) fail\n",
+ __func__, __LINE__);
+ goto probe_err_5;
+ }
+
+ /* mflash is random device, thanx for the noop */
+ elevator_exit(host->breq->elevator);
+ err = elevator_init(host->breq, "noop");
+ if (err) {
+ printk(KERN_ERR "%s:%d (elevator_init) fail\n",
+ __func__, __LINE__);
+ goto probe_err_6;
+ }
+ blk_queue_max_sectors(host->breq, MG_MAX_SECTS);
+ blk_queue_hardsect_size(host->breq, MG_SECTOR_SIZE);
+
+ init_timer(&host->timer);
+ host->timer.function = mg_times_out;
+ host->timer.data = (unsigned long)host;
+
+ host->gd = alloc_disk(MG_DISK_MAX_PART);
+ if (!host->gd) {
+ printk(KERN_ERR "%s:%d (alloc_disk) fail\n",
+ __func__, __LINE__);
+ err = -ENOMEM;
+ goto probe_err_7;
+ }
+ host->gd->major = host->major;
+ host->gd->first_minor = 0;
+ host->gd->fops = &mg_disk_ops;
+ host->gd->queue = host->breq;
+ host->gd->private_data = host;
+ sprintf(host->gd->disk_name, MG_DISK_NAME"a");
+
+ set_capacity(host->gd, host->n_sectors);
+
+ add_disk(host->gd);
+
+ return err;
+
+probe_err_7:
+ del_timer_sync(&host->timer);
+probe_err_6:
+ blk_cleanup_queue(host->breq);
+probe_err_5:
+ unregister_blkdev(MG_DISK_MAJ, MG_DISK_NAME);
+probe_err_4:
+ if (!prv_data->use_polling)
+ free_irq(host->irq, host);
+probe_err_3b:
+ gpio_free(host->rstout);
+probe_err_3a:
+ gpio_free(host->rst);
+probe_err_3:
+ iounmap(host->dev_base);
+probe_err_2:
+ kfree(host);
+probe_err:
+ return err;
+}
+
+static int mg_remove(struct platform_device *plat_dev)
+{
+ struct mg_drv_data *prv_data = plat_dev->dev.platform_data;
+ struct mg_host *host = prv_data->host;
+ int err = 0;
+
+ /* delete timer */
+ del_timer_sync(&host->timer);
+
+ /* remove disk */
+ if (host->gd) {
+ del_gendisk(host->gd);
+ put_disk(host->gd);
+ }
+ /* remove queue */
+ if (host->breq)
+ blk_cleanup_queue(host->breq);
+
+ /* unregister blk device */
+ unregister_blkdev(host->major, MG_DISK_NAME);
+
+ /* free irq */
+ if (!prv_data->use_polling)
+ free_irq(host->irq, host);
+
+ /* free reset-out pin */
+ if (prv_data->dev_attr != MG_BOOT_DEV)
+ gpio_free(host->rstout);
+
+ /* free rst pin */
+ if (host->rst)
+ gpio_free(host->rst);
+
+ /* unmap io */
+ if (host->dev_base)
+ iounmap(host->dev_base);
+
+ /* free mg_host */
+ kfree(host);
+
+ return err;
+}
+
+static struct platform_driver mg_disk_driver = {
+ .probe = mg_probe,
+ .remove = mg_remove,
+ .suspend = mg_suspend,
+ .resume = mg_resume,
+ .driver = {
+ .name = MG_DEV_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+/****************************************************************************
+ *
+ * Module stuff
+ *
+ ****************************************************************************/
+
+static int __init mg_init(void)
+{
+ printk(KERN_INFO "mGine mflash driver, (c) 2008 mGine Co.\n");
+ return platform_driver_register(&mg_disk_driver);
+}
+
+static void __exit mg_exit(void)
+{
+ printk(KERN_INFO "mflash driver : bye bye\n");
+ platform_driver_unregister(&mg_disk_driver);
+}
+
+module_init(mg_init);
+module_exit(mg_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("unsik Kim <donari75@gmail.com>");
+MODULE_DESCRIPTION("mGine m[g]flash device driver");
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index a18e1ca0f761..ff0448e4bf03 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1586,9 +1586,9 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out;
#ifdef IF_64BIT_DMA_IS_POSSIBLE /* grrrr... */
- rc = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!rc) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (rc) {
printk(KERN_ERR DRV_NAME "(%s): consistent DMA mask failure\n",
pci_name(pdev));
@@ -1597,7 +1597,7 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
pci_dac = 1;
} else {
#endif
- rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
printk(KERN_ERR DRV_NAME "(%s): DMA mask failure\n",
pci_name(pdev));
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 69b7f8e77596..689cd27ac890 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1025,6 +1025,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
{
struct urb *urb = &sc->work_urb;
struct bulk_cs_wrap *bcs;
+ int endp;
int len;
int rc;
@@ -1033,6 +1034,10 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
return;
}
+ endp = usb_pipeendpoint(sc->last_pipe);
+ if (usb_pipein(sc->last_pipe))
+ endp |= USB_DIR_IN;
+
if (cmd->state == UB_CMDST_CLEAR) {
if (urb->status == -EPIPE) {
/*
@@ -1048,9 +1053,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
* We ignore the result for the halt clear.
*/
- /* reset the endpoint toggle */
- usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
- usb_pipeout(sc->last_pipe), 0);
+ usb_reset_endpoint(sc->dev, endp);
ub_state_sense(sc, cmd);
@@ -1065,9 +1068,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
* We ignore the result for the halt clear.
*/
- /* reset the endpoint toggle */
- usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
- usb_pipeout(sc->last_pipe), 0);
+ usb_reset_endpoint(sc->dev, endp);
ub_state_stat(sc, cmd);
@@ -1082,9 +1083,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
* We ignore the result for the halt clear.
*/
- /* reset the endpoint toggle */
- usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
- usb_pipeout(sc->last_pipe), 0);
+ usb_reset_endpoint(sc->dev, endp);
ub_state_stat_counted(sc, cmd);
@@ -2119,8 +2118,7 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
del_timer_sync(&timer);
usb_kill_urb(&sc->work_urb);
- /* reset the endpoint toggle */
- usb_settoggle(sc->dev, endp, usb_pipeout(sc->last_pipe), 0);
+ usb_reset_endpoint(sc->dev, endp);
return 0;
}
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index c24e1bdbad43..858c34dd032d 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -829,8 +829,8 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
dev_printk(KERN_INFO, &dev->dev,
"Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))\n");
- if (pci_set_dma_mask(dev, DMA_64BIT_MASK) &&
- pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+ if (pci_set_dma_mask(dev, DMA_BIT_MASK(64)) &&
+ pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
dev_printk(KERN_WARNING, &dev->dev, "NO suitable DMA found\n");
return -ENOMEM;
}
@@ -906,6 +906,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
goto failed_alloc;
blk_queue_make_request(card->queue, mm_make_request);
+ card->queue->queue_lock = &card->lock;
card->queue->queuedata = card;
card->queue->unplug_fn = mm_unplug_device;
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index 6cccdc3f5220..4aecf5dc6a93 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -563,7 +563,7 @@ static void ace_fsm_dostate(struct ace_device *ace)
case ACE_FSM_STATE_IDENTIFY_PREPARE:
/* Send identify command */
ace->fsm_task = ACE_TASK_IDENTIFY;
- ace->data_ptr = &ace->cf_id;
+ ace->data_ptr = ace->cf_id;
ace->data_count = ACE_BUF_PER_SECTOR;
ace_out(ace, ACE_SECCNTCMD, ACE_SECCNTCMD_IDENTIFY);
@@ -608,8 +608,8 @@ static void ace_fsm_dostate(struct ace_device *ace)
break;
case ACE_FSM_STATE_IDENTIFY_COMPLETE:
- ace_fix_driveid(&ace->cf_id[0]);
- ace_dump_mem(&ace->cf_id, 512); /* Debug: Dump out disk ID */
+ ace_fix_driveid(ace->cf_id);
+ ace_dump_mem(ace->cf_id, 512); /* Debug: Dump out disk ID */
if (ace->data_result) {
/* Error occured, disable the disk */
@@ -622,9 +622,9 @@ static void ace_fsm_dostate(struct ace_device *ace)
/* Record disk parameters */
set_capacity(ace->gd,
- ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+ ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
dev_info(ace->dev, "capacity: %i sectors\n",
- ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+ ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
}
/* We're done, drop to IDLE state and notify waiters */
@@ -923,7 +923,7 @@ static int ace_release(struct gendisk *disk, fmode_t mode)
static int ace_getgeo(struct block_device *bdev, struct hd_geometry *geo)
{
struct ace_device *ace = bdev->bd_disk->private_data;
- u16 *cf_id = &ace->cf_id[0];
+ u16 *cf_id = ace->cf_id;
dev_dbg(ace->dev, "ace_getgeo()\n");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.