* Version Information
*/
-#define DRIVER_VERSION "v2.3"
-#define DRIVER_AUTHOR "San Mehat, Johannes Erdfelt, NeilBrown"
-#define DRIVER_DESC "Micro Memory(tm) PCI memory board block driver"
+#define DRIVER_NAME "umem"
+#define DRIVER_VERSION "v2.3"
+#define DRIVER_AUTHOR "San Mehat, Johannes Erdfelt, NeilBrown"
+#define DRIVER_DESC "Micro Memory(tm) PCI memory board block driver"
static int debug;
/* #define HW_TRACE(x) writeb(x,cards[0].csr_remap + MEMCTRLSTATUS_MAGIC) */
struct cardinfo {
struct pci_dev *dev;
- int irq;
-
- unsigned long csr_base;
unsigned char __iomem *csr_remap;
- unsigned long csr_len;
- unsigned int win_size; /* PCI window size */
unsigned int mm_size; /* size in kbytes */
unsigned int init_size; /* initial segment, in sectors,
desc->control_bits &= ~cpu_to_le32(DMASCR_CHAIN_EN);
desc->sem_control_bits = desc->control_bits;
-
+
if (debug & DEBUG_LED_ON_TRANSFER)
set_led(card, LED_REMOVE, LED_ON);
static void activate(struct cardinfo *card)
{
- /* if No page is Active, and Ready is
+ /* if No page is Active, and Ready is
* not empty, then switch Ready page
* to active and start IO.
* Then add any bh's that are available to Ready
spin_unlock_irqrestore(&card->lock, flags);
}
-/*
+/*
* If there is room on Ready page, take
* one bh off list and add it.
* return 1 if there was room, else 0.
if (card->Active < 0)
goto out_unlock;
page = &card->mm_pages[card->Active];
-
+
while (page->headcnt < page->cnt) {
struct bio *bio = page->bio;
struct mm_dma_desc *desc = &page->desc[page->headcnt];
if (!(control & DMASCR_DMA_COMPLETE)) {
control = dma_status;
- last=1;
+ last=1;
}
page->headcnt++;
idx = page->idx;
page->idx = page->bio->bi_idx;
}
- pci_unmap_page(card->dev, desc->data_dma_handle,
+ pci_unmap_page(card->dev, desc->data_dma_handle,
bio_iovec_idx(bio,idx)->bv_len,
(control& DMASCR_TRANSFER_READ) ?
PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
else
writeb((DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE) >> 16,
card->csr_remap+ DMA_STATUS_CTRL + 2);
-
+
/* log errors and clear interrupt status */
if (dma_status & DMASCR_ANY_ERR) {
unsigned int data_log1, data_log2;
HW_TRACE(0x36);
- return IRQ_HANDLED;
+ return IRQ_HANDLED;
}
/*
-----------------------------------------------------------------------------------
{
int i;
- for (i = 0; i < num_cards; i++)
+ for (i = 0; i < num_cards; i++)
if (!(cards[i].flags & UM_FLAG_NO_BATT)) {
struct cardinfo *card = &cards[i];
spin_lock_bh(&card->lock);
unsigned char mem_present;
unsigned char batt_status;
unsigned int saved_bar, data;
+ unsigned long csr_base;
+ unsigned long csr_len;
int magic_number;
static int printed_version;
if (!printed_version++)
printk(KERN_INFO DRIVER_VERSION " : " DRIVER_DESC "\n");
- if (pci_enable_device(dev) < 0)
- return -ENODEV;
+ ret = pci_enable_device(dev);
+ if (ret)
+ return ret;
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF8);
pci_set_master(dev);
card->dev = dev;
- card->csr_base = pci_resource_start(dev, 0);
- card->csr_len = pci_resource_len(dev, 0);
+ csr_base = pci_resource_start(dev, 0);
+ csr_len = pci_resource_len(dev, 0);
+ if (!csr_base || !csr_len)
+ return -ENODEV;
dev_printk(KERN_INFO, &dev->dev,
"Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))\n");
dev_printk(KERN_WARNING, &dev->dev, "NO suitable DMA found\n");
return -ENOMEM;
}
- if (!request_mem_region(card->csr_base, card->csr_len, "Micro Memory")) {
+
+ ret = pci_request_regions(dev, DRIVER_NAME);
+ if (ret) {
dev_printk(KERN_ERR, &card->dev->dev,
"Unable to request memory region\n");
- ret = -ENOMEM;
-
goto failed_req_csr;
}
- card->csr_remap = ioremap_nocache(card->csr_base, card->csr_len);
+ card->csr_remap = ioremap_nocache(csr_base, csr_len);
if (!card->csr_remap) {
dev_printk(KERN_ERR, &card->dev->dev,
"Unable to remap memory region\n");
dev_printk(KERN_INFO, &card->dev->dev,
"CSR 0x%08lx -> 0x%p (0x%lx)\n",
- card->csr_base, card->csr_remap, card->csr_len);
+ csr_base, card->csr_remap, csr_len);
switch(card->dev->device) {
case 0x5415:
tasklet_init(&card->tasklet, process_page, (unsigned long)card);
card->check_batteries = 0;
-
+
mem_present = readb(card->csr_remap + MEMCTRLSTATUS_MEMORY);
switch (mem_present) {
case MEM_128_MB:
card->battery[1].good = !(batt_status & BATTERY_2_FAILURE);
card->battery[0].last_change = card->battery[1].last_change = jiffies;
- if (card->flags & UM_FLAG_NO_BATT)
+ if (card->flags & UM_FLAG_NO_BATT)
dev_printk(KERN_INFO, &card->dev->dev,
"Size %d KB\n", card->mm_size);
else {
data = ~data;
data += 1;
- card->win_size = data;
-
-
- if (request_irq(dev->irq, mm_interrupt, IRQF_SHARED, "pci-umem", card)) {
+ if (request_irq(dev->irq, mm_interrupt, IRQF_SHARED, DRIVER_NAME, card)) {
dev_printk(KERN_ERR, &card->dev->dev,
"Unable to allocate IRQ\n");
ret = -ENODEV;
goto failed_req_irq;
}
- card->irq = dev->irq;
dev_printk(KERN_INFO, &card->dev->dev,
- "Window size %d bytes, IRQ %d\n",
- card->win_size, card->irq);
+ "Window size %d bytes, IRQ %d\n", data, dev->irq);
spin_lock_init(&card->lock);
failed_magic:
iounmap(card->csr_remap);
failed_remap_csr:
- release_mem_region(card->csr_base, card->csr_len);
+ pci_release_regions(dev);
failed_req_csr:
return ret;
struct cardinfo *card = pci_get_drvdata(dev);
tasklet_kill(&card->tasklet);
+ free_irq(dev->irq, card);
iounmap(card->csr_remap);
- release_mem_region(card->csr_base, card->csr_len);
- free_irq(card->irq, card);
if (card->mm_pages[0].desc)
pci_free_consistent(card->dev, PAGE_SIZE*2,
card->mm_pages[1].desc,
card->mm_pages[1].page_dma);
blk_cleanup_queue(card->queue);
+
+ pci_release_regions(dev);
+ pci_disable_device(dev);
}
static const struct pci_device_id mm_pci_ids[] = {
MODULE_DEVICE_TABLE(pci, mm_pci_ids);
static struct pci_driver mm_pci_driver = {
- .name = "umem",
- .id_table = mm_pci_ids,
- .probe = mm_pci_probe,
- .remove = mm_pci_remove,
+ .name = DRIVER_NAME,
+ .id_table = mm_pci_ids,
+ .probe = mm_pci_probe,
+ .remove = mm_pci_remove,
};
+
/*
-----------------------------------------------------------------------------------
-- mm_init
if (retval)
return -ENOMEM;
- err = major_nr = register_blkdev(0, "umem");
+ err = major_nr = register_blkdev(0, DRIVER_NAME);
if (err < 0) {
pci_unregister_driver(&mm_pci_driver);
return -EIO;
out:
pci_unregister_driver(&mm_pci_driver);
- unregister_blkdev(major_nr, "umem");
+ unregister_blkdev(major_nr, DRIVER_NAME);
while (i--)
put_disk(mm_gendisk[i]);
return -ENOMEM;
pci_unregister_driver(&mm_pci_driver);
- unregister_blkdev(major_nr, "umem");
+ unregister_blkdev(major_nr, DRIVER_NAME);
}
module_init(mm_init);
projects / linux-2.6 / blobdiff