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drivers/block/umem.c
29.9 KB
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/* * mm.c - Micro Memory(tm) PCI memory board block device driver - v2.3 * * (C) 2001 San Mehat <nettwerk@valinux.com> * (C) 2001 Johannes Erdfelt <jerdfelt@valinux.com> * (C) 2001 NeilBrown <neilb@cse.unsw.edu.au> * * This driver for the Micro Memory PCI Memory Module with Battery Backup * is Copyright Micro Memory Inc 2001-2002. All rights reserved. * * This driver is released to the public under the terms of the * GNU GENERAL PUBLIC LICENSE version 2 * See the file COPYING for details. * * This driver provides a standard block device interface for Micro Memory(tm) * PCI based RAM boards. * 10/05/01: Phap Nguyen - Rebuilt the driver * 10/22/01: Phap Nguyen - v2.1 Added disk partitioning * 29oct2001:NeilBrown - Use make_request_fn instead of request_fn * - use stand disk partitioning (so fdisk works). * 08nov2001:NeilBrown - change driver name from "mm" to "umem" * - incorporate into main kernel * 08apr2002:NeilBrown - Move some of interrupt handle to tasklet * - use spin_lock_bh instead of _irq * - Never block on make_request. queue * bh's instead. * - unregister umem from devfs at mod unload * - Change version to 2.3 * 07Nov2001:Phap Nguyen - Select pci read command: 06, 12, 15 (Decimal) * 07Jan2002: P. Nguyen - Used PCI Memory Write & Invalidate for DMA * 15May2002:NeilBrown - convert to bio for 2.5 * 17May2002:NeilBrown - remove init_mem initialisation. Instead detect * - a sequence of writes that cover the card, and * - set initialised bit then. */ |
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#undef DEBUG /* #define DEBUG if you want debugging info (pr_debug) */ |
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#include <linux/fs.h> #include <linux/bio.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/mman.h> |
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#include <linux/gfp.h> |
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#include <linux/ioctl.h> #include <linux/module.h> #include <linux/init.h> #include <linux/interrupt.h> |
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#include <linux/timer.h> #include <linux/pci.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/fcntl.h> /* O_ACCMODE */ #include <linux/hdreg.h> /* HDIO_GETGEO */ |
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#include "umem.h" |
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#include <linux/uaccess.h> |
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#include <asm/io.h> |
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#define MM_MAXCARDS 4 #define MM_RAHEAD 2 /* two sectors */ #define MM_BLKSIZE 1024 /* 1k blocks */ #define MM_HARDSECT 512 /* 512-byte hardware sectors */ #define MM_SHIFT 6 /* max 64 partitions on 4 cards */ /* * Version Information */ |
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#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" |
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static int debug; /* #define HW_TRACE(x) writeb(x,cards[0].csr_remap + MEMCTRLSTATUS_MAGIC) */ #define HW_TRACE(x) #define DEBUG_LED_ON_TRANSFER 0x01 #define DEBUG_BATTERY_POLLING 0x02 module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Debug bitmask"); static int pci_read_cmd = 0x0C; /* Read Multiple */ module_param(pci_read_cmd, int, 0); MODULE_PARM_DESC(pci_read_cmd, "PCI read command"); static int pci_write_cmd = 0x0F; /* Write and Invalidate */ module_param(pci_write_cmd, int, 0); MODULE_PARM_DESC(pci_write_cmd, "PCI write command"); static int pci_cmds; static int major_nr; #include <linux/blkdev.h> #include <linux/blkpg.h> struct cardinfo { |
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struct pci_dev *dev; |
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unsigned char __iomem *csr_remap; |
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unsigned int mm_size; /* size in kbytes */ unsigned int init_size; /* initial segment, in sectors, * that we know to * have been written */ struct bio *bio, *currentbio, **biotail; |
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struct bvec_iter current_iter; |
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struct request_queue *queue; |
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struct mm_page { dma_addr_t page_dma; struct mm_dma_desc *desc; int cnt, headcnt; struct bio *bio, **biotail; |
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struct bvec_iter iter; |
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} mm_pages[2]; #define DESC_PER_PAGE ((PAGE_SIZE*2)/sizeof(struct mm_dma_desc)) int Active, Ready; struct tasklet_struct tasklet; unsigned int dma_status; struct { int good; int warned; unsigned long last_change; } battery[2]; spinlock_t lock; int check_batteries; int flags; }; static struct cardinfo cards[MM_MAXCARDS]; |
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static struct timer_list battery_timer; |
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static int num_cards; |
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static struct gendisk *mm_gendisk[MM_MAXCARDS]; static void check_batteries(struct cardinfo *card); |
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static int get_userbit(struct cardinfo *card, int bit) { unsigned char led; led = readb(card->csr_remap + MEMCTRLCMD_LEDCTRL); return led & bit; } |
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static int set_userbit(struct cardinfo *card, int bit, unsigned char state) { unsigned char led; led = readb(card->csr_remap + MEMCTRLCMD_LEDCTRL); if (state) led |= bit; else led &= ~bit; writeb(led, card->csr_remap + MEMCTRLCMD_LEDCTRL); return 0; } |
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/* * NOTE: For the power LED, use the LED_POWER_* macros since they differ */ static void set_led(struct cardinfo *card, int shift, unsigned char state) { unsigned char led; led = readb(card->csr_remap + MEMCTRLCMD_LEDCTRL); if (state == LED_FLIP) led ^= (1<<shift); else { led &= ~(0x03 << shift); led |= (state << shift); } writeb(led, card->csr_remap + MEMCTRLCMD_LEDCTRL); } #ifdef MM_DIAG |
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static void dump_regs(struct cardinfo *card) { unsigned char *p; int i, i1; p = card->csr_remap; for (i = 0; i < 8; i++) { printk(KERN_DEBUG "%p ", p); for (i1 = 0; i1 < 16; i1++) printk("%02x ", *p++); printk(" "); } } #endif |
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static void dump_dmastat(struct cardinfo *card, unsigned int dmastat) { |
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dev_printk(KERN_DEBUG, &card->dev->dev, "DMAstat - "); |
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if (dmastat & DMASCR_ANY_ERR) |
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printk(KERN_CONT "ANY_ERR "); |
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if (dmastat & DMASCR_MBE_ERR) |
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printk(KERN_CONT "MBE_ERR "); |
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if (dmastat & DMASCR_PARITY_ERR_REP) |
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printk(KERN_CONT "PARITY_ERR_REP "); |
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if (dmastat & DMASCR_PARITY_ERR_DET) |
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printk(KERN_CONT "PARITY_ERR_DET "); |
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if (dmastat & DMASCR_SYSTEM_ERR_SIG) |
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printk(KERN_CONT "SYSTEM_ERR_SIG "); |
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if (dmastat & DMASCR_TARGET_ABT) |
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printk(KERN_CONT "TARGET_ABT "); |
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if (dmastat & DMASCR_MASTER_ABT) |
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printk(KERN_CONT "MASTER_ABT "); |
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if (dmastat & DMASCR_CHAIN_COMPLETE) |
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printk(KERN_CONT "CHAIN_COMPLETE "); |
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if (dmastat & DMASCR_DMA_COMPLETE) |
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printk(KERN_CONT "DMA_COMPLETE "); |
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printk(" "); } /* * Theory of request handling * * Each bio is assigned to one mm_dma_desc - which may not be enough FIXME * We have two pages of mm_dma_desc, holding about 64 descriptors * each. These are allocated at init time. * One page is "Ready" and is either full, or can have request added. * The other page might be "Active", which DMA is happening on it. * * Whenever IO on the active page completes, the Ready page is activated * and the ex-Active page is clean out and made Ready. |
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* Otherwise the Ready page is only activated when it becomes full. |
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* * If a request arrives while both pages a full, it is queued, and b_rdev is * overloaded to record whether it was a read or a write. * * The interrupt handler only polls the device to clear the interrupt. * The processing of the result is done in a tasklet. */ static void mm_start_io(struct cardinfo *card) { /* we have the lock, we know there is * no IO active, and we know that card->Active * is set */ struct mm_dma_desc *desc; struct mm_page *page; int offset; /* make the last descriptor end the chain */ page = &card->mm_pages[card->Active]; |
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pr_debug("start_io: %d %d->%d ", card->Active, page->headcnt, page->cnt - 1); |
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desc = &page->desc[page->cnt-1]; desc->control_bits |= cpu_to_le32(DMASCR_CHAIN_COMP_EN); desc->control_bits &= ~cpu_to_le32(DMASCR_CHAIN_EN); desc->sem_control_bits = desc->control_bits; |
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if (debug & DEBUG_LED_ON_TRANSFER) set_led(card, LED_REMOVE, LED_ON); desc = &page->desc[page->headcnt]; writel(0, card->csr_remap + DMA_PCI_ADDR); writel(0, card->csr_remap + DMA_PCI_ADDR + 4); writel(0, card->csr_remap + DMA_LOCAL_ADDR); writel(0, card->csr_remap + DMA_LOCAL_ADDR + 4); writel(0, card->csr_remap + DMA_TRANSFER_SIZE); writel(0, card->csr_remap + DMA_TRANSFER_SIZE + 4); writel(0, card->csr_remap + DMA_SEMAPHORE_ADDR); writel(0, card->csr_remap + DMA_SEMAPHORE_ADDR + 4); |
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offset = ((char *)desc) - ((char *)page->desc); writel(cpu_to_le32((page->page_dma+offset) & 0xffffffff), |
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card->csr_remap + DMA_DESCRIPTOR_ADDR); /* Force the value to u64 before shifting otherwise >> 32 is undefined C * and on some ports will do nothing ! */ writel(cpu_to_le32(((u64)page->page_dma)>>32), card->csr_remap + DMA_DESCRIPTOR_ADDR + 4); /* Go, go, go */ writel(cpu_to_le32(DMASCR_GO | DMASCR_CHAIN_EN | pci_cmds), card->csr_remap + DMA_STATUS_CTRL); } static int add_bio(struct cardinfo *card); static void activate(struct cardinfo *card) { |
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/* if No page is Active, and Ready is |
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* not empty, then switch Ready page * to active and start IO. * Then add any bh's that are available to Ready */ do { while (add_bio(card)) ; if (card->Active == -1 && card->mm_pages[card->Ready].cnt > 0) { card->Active = card->Ready; card->Ready = 1-card->Ready; mm_start_io(card); } } while (card->Active == -1 && add_bio(card)); } static inline void reset_page(struct mm_page *page) { page->cnt = 0; page->headcnt = 0; page->bio = NULL; |
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page->biotail = &page->bio; |
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} |
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/* |
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* If there is room on Ready page, take * one bh off list and add it. * return 1 if there was room, else 0. */ static int add_bio(struct cardinfo *card) { struct mm_page *p; struct mm_dma_desc *desc; dma_addr_t dma_handle; int offset; struct bio *bio; |
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struct bio_vec vec; |
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bio = card->currentbio; if (!bio && card->bio) { card->currentbio = card->bio; |
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card->current_iter = card->bio->bi_iter; |
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card->bio = card->bio->bi_next; if (card->bio == NULL) card->biotail = &card->bio; card->currentbio->bi_next = NULL; return 1; } if (!bio) return 0; |
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if (card->mm_pages[card->Ready].cnt >= DESC_PER_PAGE) return 0; |
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vec = bio_iter_iovec(bio, card->current_iter); |
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dma_handle = pci_map_page(card->dev, |
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vec.bv_page, vec.bv_offset, vec.bv_len, |
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bio_op(bio) == REQ_OP_READ ? |
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PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); p = &card->mm_pages[card->Ready]; desc = &p->desc[p->cnt]; p->cnt++; |
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if (p->bio == NULL) |
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p->iter = card->current_iter; |
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if ((p->biotail) != &bio->bi_next) { *(p->biotail) = bio; p->biotail = &(bio->bi_next); bio->bi_next = NULL; } desc->data_dma_handle = dma_handle; desc->pci_addr = cpu_to_le64((u64)desc->data_dma_handle); |
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desc->local_addr = cpu_to_le64(card->current_iter.bi_sector << 9); desc->transfer_size = cpu_to_le32(vec.bv_len); |
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offset = (((char *)&desc->sem_control_bits) - ((char *)p->desc)); |
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desc->sem_addr = cpu_to_le64((u64)(p->page_dma+offset)); desc->zero1 = desc->zero2 = 0; |
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offset = (((char *)(desc+1)) - ((char *)p->desc)); |
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desc->next_desc_addr = cpu_to_le64(p->page_dma+offset); desc->control_bits = cpu_to_le32(DMASCR_GO|DMASCR_ERR_INT_EN| DMASCR_PARITY_INT_EN| DMASCR_CHAIN_EN | DMASCR_SEM_EN | pci_cmds); |
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if (bio_op(bio) == REQ_OP_WRITE) |
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desc->control_bits |= cpu_to_le32(DMASCR_TRANSFER_READ); desc->sem_control_bits = desc->control_bits; |
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bio_advance_iter(bio, &card->current_iter, vec.bv_len); if (!card->current_iter.bi_size) |
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card->currentbio = NULL; return 1; } static void process_page(unsigned long data) { /* check if any of the requests in the page are DMA_COMPLETE, * and deal with them appropriately. * If we find a descriptor without DMA_COMPLETE in the semaphore, then |
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* dma must have hit an error on that descriptor, so use dma_status * instead and assume that all following descriptors must be re-tried. |
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*/ struct mm_page *page; |
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struct bio *return_bio = NULL; |
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struct cardinfo *card = (struct cardinfo *)data; unsigned int dma_status = card->dma_status; spin_lock_bh(&card->lock); if (card->Active < 0) goto out_unlock; page = &card->mm_pages[card->Active]; |
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while (page->headcnt < page->cnt) { struct bio *bio = page->bio; struct mm_dma_desc *desc = &page->desc[page->headcnt]; int control = le32_to_cpu(desc->sem_control_bits); |
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int last = 0; |
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struct bio_vec vec; |
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if (!(control & DMASCR_DMA_COMPLETE)) { control = dma_status; |
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last = 1; |
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} |
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page->headcnt++; |
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vec = bio_iter_iovec(bio, page->iter); bio_advance_iter(bio, &page->iter, vec.bv_len); if (!page->iter.bi_size) { |
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page->bio = bio->bi_next; |
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if (page->bio) |
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page->iter = page->bio->bi_iter; |
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} |
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pci_unmap_page(card->dev, desc->data_dma_handle, |
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vec.bv_len, |
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(control & DMASCR_TRANSFER_READ) ? |
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PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); if (control & DMASCR_HARD_ERROR) { /* error */ |
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bio->bi_error = -EIO; |
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dev_printk(KERN_WARNING, &card->dev->dev, "I/O error on sector %d/%d ", le32_to_cpu(desc->local_addr)>>9, le32_to_cpu(desc->transfer_size)); |
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dump_dmastat(card, control); |
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} else if (op_is_write(bio_op(bio)) && |
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le32_to_cpu(desc->local_addr) >> 9 == card->init_size) { card->init_size += le32_to_cpu(desc->transfer_size) >> 9; if (card->init_size >> 1 >= card->mm_size) { |
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dev_printk(KERN_INFO, &card->dev->dev, "memory now initialised "); |
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set_userbit(card, MEMORY_INITIALIZED, 1); } } if (bio != page->bio) { bio->bi_next = return_bio; return_bio = bio; } |
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if (last) break; |
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} if (debug & DEBUG_LED_ON_TRANSFER) set_led(card, LED_REMOVE, LED_OFF); if (card->check_batteries) { card->check_batteries = 0; check_batteries(card); } if (page->headcnt >= page->cnt) { reset_page(page); card->Active = -1; activate(card); } else { /* haven't finished with this one yet */ |
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pr_debug("do some more "); |
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mm_start_io(card); } out_unlock: spin_unlock_bh(&card->lock); |
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while (return_bio) { |
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struct bio *bio = return_bio; return_bio = bio->bi_next; bio->bi_next = NULL; |
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bio_endio(bio); |
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} } |
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static void mm_unplug(struct blk_plug_cb *cb, bool from_schedule) |
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{ |
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struct cardinfo *card = cb->data; |
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spin_lock_irq(&card->lock); activate(card); spin_unlock_irq(&card->lock); kfree(cb); |
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} static int mm_check_plugged(struct cardinfo *card) { |
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return !!blk_check_plugged(mm_unplug, card, sizeof(struct blk_plug_cb)); |
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} |
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static blk_qc_t mm_make_request(struct request_queue *q, struct bio *bio) |
1da177e4c Linux-2.6.12-rc2 |
514 515 |
{ struct cardinfo *card = q->queuedata; |
f2b9ecc41 [PATCH] pr_debug:... |
516 517 |
pr_debug("mm_make_request %llu %u ", |
4f024f379 block: Abstract o... |
518 519 |
(unsigned long long)bio->bi_iter.bi_sector, bio->bi_iter.bi_size); |
1da177e4c Linux-2.6.12-rc2 |
520 |
|
54efd50bf block: make gener... |
521 |
blk_queue_split(q, &bio, q->bio_split); |
1da177e4c Linux-2.6.12-rc2 |
522 523 524 525 |
spin_lock_irq(&card->lock); *card->biotail = bio; bio->bi_next = NULL; card->biotail = &bio->bi_next; |
03ea4afa6 umem: use op_is_s... |
526 |
if (op_is_sync(bio->bi_opf) || !mm_check_plugged(card)) |
32587371a umem: fix up unpl... |
527 |
activate(card); |
1da177e4c Linux-2.6.12-rc2 |
528 |
spin_unlock_irq(&card->lock); |
dece16353 block: change ->m... |
529 |
return BLK_QC_T_NONE; |
1da177e4c Linux-2.6.12-rc2 |
530 |
} |
7d12e780e IRQ: Maintain reg... |
531 |
static irqreturn_t mm_interrupt(int irq, void *__card) |
1da177e4c Linux-2.6.12-rc2 |
532 533 534 535 536 537 538 539 540 541 542 543 |
{ struct cardinfo *card = (struct cardinfo *) __card; unsigned int dma_status; unsigned short cfg_status; HW_TRACE(0x30); dma_status = le32_to_cpu(readl(card->csr_remap + DMA_STATUS_CTRL)); if (!(dma_status & (DMASCR_ERROR_MASK | DMASCR_CHAIN_COMPLETE))) { /* interrupt wasn't for me ... */ return IRQ_NONE; |
458cf5e9b Cleanup umem driv... |
544 |
} |
1da177e4c Linux-2.6.12-rc2 |
545 546 547 548 |
/* clear COMPLETION interrupts */ if (card->flags & UM_FLAG_NO_BYTE_STATUS) writel(cpu_to_le32(DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE), |
458cf5e9b Cleanup umem driv... |
549 |
card->csr_remap + DMA_STATUS_CTRL); |
1da177e4c Linux-2.6.12-rc2 |
550 551 |
else writeb((DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE) >> 16, |
458cf5e9b Cleanup umem driv... |
552 |
card->csr_remap + DMA_STATUS_CTRL + 2); |
4e953a216 drivers/block/ume... |
553 |
|
1da177e4c Linux-2.6.12-rc2 |
554 555 556 557 558 559 560 |
/* log errors and clear interrupt status */ if (dma_status & DMASCR_ANY_ERR) { unsigned int data_log1, data_log2; unsigned int addr_log1, addr_log2; unsigned char stat, count, syndrome, check; stat = readb(card->csr_remap + MEMCTRLCMD_ERRSTATUS); |
458cf5e9b Cleanup umem driv... |
561 562 563 564 565 566 |
data_log1 = le32_to_cpu(readl(card->csr_remap + ERROR_DATA_LOG)); data_log2 = le32_to_cpu(readl(card->csr_remap + ERROR_DATA_LOG + 4)); addr_log1 = le32_to_cpu(readl(card->csr_remap + ERROR_ADDR_LOG)); |
1da177e4c Linux-2.6.12-rc2 |
567 568 569 570 571 572 573 574 575 |
addr_log2 = readb(card->csr_remap + ERROR_ADDR_LOG + 4); count = readb(card->csr_remap + ERROR_COUNT); syndrome = readb(card->csr_remap + ERROR_SYNDROME); check = readb(card->csr_remap + ERROR_CHECK); dump_dmastat(card, dma_status); if (stat & 0x01) |
4e0af881a drivers/block/ume... |
576 577 578 579 |
dev_printk(KERN_ERR, &card->dev->dev, "Memory access error detected (err count %d) ", count); |
1da177e4c Linux-2.6.12-rc2 |
580 |
if (stat & 0x02) |
4e0af881a drivers/block/ume... |
581 582 583 |
dev_printk(KERN_ERR, &card->dev->dev, "Multi-bit EDC error "); |
1da177e4c Linux-2.6.12-rc2 |
584 |
|
4e0af881a drivers/block/ume... |
585 586 587 588 589 590 591 592 |
dev_printk(KERN_ERR, &card->dev->dev, "Fault Address 0x%02x%08x, Fault Data 0x%08x%08x ", addr_log2, addr_log1, data_log2, data_log1); dev_printk(KERN_ERR, &card->dev->dev, "Fault Check 0x%02x, Fault Syndrome 0x%02x ", check, syndrome); |
1da177e4c Linux-2.6.12-rc2 |
593 594 595 596 597 |
writeb(0, card->csr_remap + ERROR_COUNT); } if (dma_status & DMASCR_PARITY_ERR_REP) { |
4e0af881a drivers/block/ume... |
598 599 600 |
dev_printk(KERN_ERR, &card->dev->dev, "PARITY ERROR REPORTED "); |
1da177e4c Linux-2.6.12-rc2 |
601 602 603 604 605 |
pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_PARITY_ERR_DET) { |
4e0af881a drivers/block/ume... |
606 607 608 |
dev_printk(KERN_ERR, &card->dev->dev, "PARITY ERROR DETECTED "); |
1da177e4c Linux-2.6.12-rc2 |
609 610 611 612 613 |
pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_SYSTEM_ERR_SIG) { |
4e0af881a drivers/block/ume... |
614 615 |
dev_printk(KERN_ERR, &card->dev->dev, "SYSTEM ERROR "); |
1da177e4c Linux-2.6.12-rc2 |
616 617 618 619 620 |
pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_TARGET_ABT) { |
4e0af881a drivers/block/ume... |
621 622 |
dev_printk(KERN_ERR, &card->dev->dev, "TARGET ABORT "); |
1da177e4c Linux-2.6.12-rc2 |
623 624 625 626 627 |
pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_MASTER_ABT) { |
4e0af881a drivers/block/ume... |
628 629 |
dev_printk(KERN_ERR, &card->dev->dev, "MASTER ABORT "); |
1da177e4c Linux-2.6.12-rc2 |
630 631 632 633 634 635 636 637 638 |
pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } /* and process the DMA descriptors */ card->dma_status = dma_status; tasklet_schedule(&card->tasklet); HW_TRACE(0x36); |
4e953a216 drivers/block/ume... |
639 |
return IRQ_HANDLED; |
1da177e4c Linux-2.6.12-rc2 |
640 |
} |
458cf5e9b Cleanup umem driv... |
641 |
|
1da177e4c Linux-2.6.12-rc2 |
642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 |
/* * If both batteries are good, no LED * If either battery has been warned, solid LED * If both batteries are bad, flash the LED quickly * If either battery is bad, flash the LED semi quickly */ static void set_fault_to_battery_status(struct cardinfo *card) { if (card->battery[0].good && card->battery[1].good) set_led(card, LED_FAULT, LED_OFF); else if (card->battery[0].warned || card->battery[1].warned) set_led(card, LED_FAULT, LED_ON); else if (!card->battery[0].good && !card->battery[1].good) set_led(card, LED_FAULT, LED_FLASH_7_0); else set_led(card, LED_FAULT, LED_FLASH_3_5); } static void init_battery_timer(void); |
1da177e4c Linux-2.6.12-rc2 |
661 662 663 664 665 666 667 |
static int check_battery(struct cardinfo *card, int battery, int status) { if (status != card->battery[battery].good) { card->battery[battery].good = !card->battery[battery].good; card->battery[battery].last_change = jiffies; if (card->battery[battery].good) { |
4e0af881a drivers/block/ume... |
668 669 670 |
dev_printk(KERN_ERR, &card->dev->dev, "Battery %d now good ", battery + 1); |
1da177e4c Linux-2.6.12-rc2 |
671 672 |
card->battery[battery].warned = 0; } else |
4e0af881a drivers/block/ume... |
673 674 675 |
dev_printk(KERN_ERR, &card->dev->dev, "Battery %d now FAILED ", battery + 1); |
1da177e4c Linux-2.6.12-rc2 |
676 677 678 679 680 681 |
return 1; } else if (!card->battery[battery].good && !card->battery[battery].warned && time_after_eq(jiffies, card->battery[battery].last_change + (HZ * 60 * 60 * 5))) { |
4e0af881a drivers/block/ume... |
682 683 684 |
dev_printk(KERN_ERR, &card->dev->dev, "Battery %d still FAILED after 5 hours ", battery + 1); |
1da177e4c Linux-2.6.12-rc2 |
685 686 687 688 689 690 691 |
card->battery[battery].warned = 1; return 1; } return 0; } |
458cf5e9b Cleanup umem driv... |
692 |
|
1da177e4c Linux-2.6.12-rc2 |
693 694 695 696 697 698 699 700 701 702 703 |
static void check_batteries(struct cardinfo *card) { /* NOTE: this must *never* be called while the card * is doing (bus-to-card) DMA, or you will need the * reset switch */ unsigned char status; int ret1, ret2; status = readb(card->csr_remap + MEMCTRLSTATUS_BATTERY); if (debug & DEBUG_BATTERY_POLLING) |
4e0af881a drivers/block/ume... |
704 705 706 |
dev_printk(KERN_DEBUG, &card->dev->dev, "checking battery status, 1 = %s, 2 = %s ", |
1da177e4c Linux-2.6.12-rc2 |
707 708 709 710 711 712 713 714 715 716 717 718 719 |
(status & BATTERY_1_FAILURE) ? "FAILURE" : "OK", (status & BATTERY_2_FAILURE) ? "FAILURE" : "OK"); ret1 = check_battery(card, 0, !(status & BATTERY_1_FAILURE)); ret2 = check_battery(card, 1, !(status & BATTERY_2_FAILURE)); if (ret1 || ret2) set_fault_to_battery_status(card); } static void check_all_batteries(unsigned long ptr) { int i; |
4e953a216 drivers/block/ume... |
720 |
for (i = 0; i < num_cards; i++) |
1da177e4c Linux-2.6.12-rc2 |
721 722 723 724 725 726 727 728 729 730 731 732 |
if (!(cards[i].flags & UM_FLAG_NO_BATT)) { struct cardinfo *card = &cards[i]; spin_lock_bh(&card->lock); if (card->Active >= 0) card->check_batteries = 1; else check_batteries(card); spin_unlock_bh(&card->lock); } init_battery_timer(); } |
458cf5e9b Cleanup umem driv... |
733 |
|
1da177e4c Linux-2.6.12-rc2 |
734 735 736 737 738 739 740 |
static void init_battery_timer(void) { init_timer(&battery_timer); battery_timer.function = check_all_batteries; battery_timer.expires = jiffies + (HZ * 60); add_timer(&battery_timer); } |
458cf5e9b Cleanup umem driv... |
741 |
|
1da177e4c Linux-2.6.12-rc2 |
742 743 744 745 |
static void del_battery_timer(void) { del_timer(&battery_timer); } |
458cf5e9b Cleanup umem driv... |
746 |
|
1da177e4c Linux-2.6.12-rc2 |
747 748 749 750 751 752 753 754 755 756 757 758 759 760 |
/* * Note no locks taken out here. In a worst case scenario, we could drop * a chunk of system memory. But that should never happen, since validation * happens at open or mount time, when locks are held. * * That's crap, since doing that while some partitions are opened * or mounted will give you really nasty results. */ static int mm_revalidate(struct gendisk *disk) { struct cardinfo *card = disk->private_data; set_capacity(disk, card->mm_size << 1); return 0; } |
a885c8c43 [PATCH] Add block... |
761 762 |
static int mm_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
1da177e4c Linux-2.6.12-rc2 |
763 |
{ |
a885c8c43 [PATCH] Add block... |
764 765 |
struct cardinfo *card = bdev->bd_disk->private_data; int size = card->mm_size * (1024 / MM_HARDSECT); |
1da177e4c Linux-2.6.12-rc2 |
766 |
|
a885c8c43 [PATCH] Add block... |
767 768 769 770 771 772 773 774 775 |
/* * get geometry: we have to fake one... trim the size to a * multiple of 2048 (1M): tell we have 32 sectors, 64 heads, * whatever cylinders. */ geo->heads = 64; geo->sectors = 32; geo->cylinders = size / (geo->heads * geo->sectors); return 0; |
1da177e4c Linux-2.6.12-rc2 |
776 |
} |
a885c8c43 [PATCH] Add block... |
777 |
|
83d5cde47 const: make block... |
778 |
static const struct block_device_operations mm_fops = { |
1da177e4c Linux-2.6.12-rc2 |
779 |
.owner = THIS_MODULE, |
a885c8c43 [PATCH] Add block... |
780 |
.getgeo = mm_getgeo, |
458cf5e9b Cleanup umem driv... |
781 |
.revalidate_disk = mm_revalidate, |
1da177e4c Linux-2.6.12-rc2 |
782 |
}; |
458cf5e9b Cleanup umem driv... |
783 |
|
8d85fce77 Drivers: block: r... |
784 |
static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) |
1da177e4c Linux-2.6.12-rc2 |
785 786 787 788 789 790 |
{ int ret = -ENODEV; struct cardinfo *card = &cards[num_cards]; unsigned char mem_present; unsigned char batt_status; unsigned int saved_bar, data; |
ee4a7b687 drivers/block/ume... |
791 792 |
unsigned long csr_base; unsigned long csr_len; |
1da177e4c Linux-2.6.12-rc2 |
793 |
int magic_number; |
4e0af881a drivers/block/ume... |
794 795 796 797 798 |
static int printed_version; if (!printed_version++) printk(KERN_INFO DRIVER_VERSION " : " DRIVER_DESC " "); |
1da177e4c Linux-2.6.12-rc2 |
799 |
|
ee4a7b687 drivers/block/ume... |
800 801 802 |
ret = pci_enable_device(dev); if (ret) return ret; |
1da177e4c Linux-2.6.12-rc2 |
803 804 805 806 807 |
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF8); pci_set_master(dev); card->dev = dev; |
1da177e4c Linux-2.6.12-rc2 |
808 |
|
ee4a7b687 drivers/block/ume... |
809 810 811 812 |
csr_base = pci_resource_start(dev, 0); csr_len = pci_resource_len(dev, 0); if (!csr_base || !csr_len) return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
813 |
|
4e0af881a drivers/block/ume... |
814 |
dev_printk(KERN_INFO, &dev->dev, |
458cf5e9b Cleanup umem driv... |
815 816 |
"Micro Memory(tm) controller found (PCI Mem Module (Battery Backup)) "); |
1da177e4c Linux-2.6.12-rc2 |
817 |
|
6a35528a8 dma-mapping: repl... |
818 |
if (pci_set_dma_mask(dev, DMA_BIT_MASK(64)) && |
284901a90 dma-mapping: repl... |
819 |
pci_set_dma_mask(dev, DMA_BIT_MASK(32))) { |
4e0af881a drivers/block/ume... |
820 821 |
dev_printk(KERN_WARNING, &dev->dev, "NO suitable DMA found "); |
1da177e4c Linux-2.6.12-rc2 |
822 823 |
return -ENOMEM; } |
ee4a7b687 drivers/block/ume... |
824 825 826 |
ret = pci_request_regions(dev, DRIVER_NAME); if (ret) { |
4e0af881a drivers/block/ume... |
827 828 829 |
dev_printk(KERN_ERR, &card->dev->dev, "Unable to request memory region "); |
1da177e4c Linux-2.6.12-rc2 |
830 831 |
goto failed_req_csr; } |
ee4a7b687 drivers/block/ume... |
832 |
card->csr_remap = ioremap_nocache(csr_base, csr_len); |
1da177e4c Linux-2.6.12-rc2 |
833 |
if (!card->csr_remap) { |
4e0af881a drivers/block/ume... |
834 835 836 |
dev_printk(KERN_ERR, &card->dev->dev, "Unable to remap memory region "); |
1da177e4c Linux-2.6.12-rc2 |
837 838 839 840 |
ret = -ENOMEM; goto failed_remap_csr; } |
4e0af881a drivers/block/ume... |
841 842 843 |
dev_printk(KERN_INFO, &card->dev->dev, "CSR 0x%08lx -> 0x%p (0x%lx) ", |
ee4a7b687 drivers/block/ume... |
844 |
csr_base, card->csr_remap, csr_len); |
1da177e4c Linux-2.6.12-rc2 |
845 |
|
458cf5e9b Cleanup umem driv... |
846 |
switch (card->dev->device) { |
1da177e4c Linux-2.6.12-rc2 |
847 848 849 850 851 852 853 854 855 856 857 |
case 0x5415: card->flags |= UM_FLAG_NO_BYTE_STATUS | UM_FLAG_NO_BATTREG; magic_number = 0x59; break; case 0x5425: card->flags |= UM_FLAG_NO_BYTE_STATUS; magic_number = 0x5C; break; case 0x6155: |
458cf5e9b Cleanup umem driv... |
858 859 |
card->flags |= UM_FLAG_NO_BYTE_STATUS | UM_FLAG_NO_BATTREG | UM_FLAG_NO_BATT; |
1da177e4c Linux-2.6.12-rc2 |
860 861 862 863 864 865 866 867 868 |
magic_number = 0x99; break; default: magic_number = 0x100; break; } if (readb(card->csr_remap + MEMCTRLSTATUS_MAGIC) != magic_number) { |
4e0af881a drivers/block/ume... |
869 870 |
dev_printk(KERN_ERR, &card->dev->dev, "Magic number invalid "); |
1da177e4c Linux-2.6.12-rc2 |
871 872 873 874 875 |
ret = -ENOMEM; goto failed_magic; } card->mm_pages[0].desc = pci_alloc_consistent(card->dev, |
458cf5e9b Cleanup umem driv... |
876 877 |
PAGE_SIZE * 2, &card->mm_pages[0].page_dma); |
1da177e4c Linux-2.6.12-rc2 |
878 |
card->mm_pages[1].desc = pci_alloc_consistent(card->dev, |
458cf5e9b Cleanup umem driv... |
879 880 |
PAGE_SIZE * 2, &card->mm_pages[1].page_dma); |
1da177e4c Linux-2.6.12-rc2 |
881 882 |
if (card->mm_pages[0].desc == NULL || card->mm_pages[1].desc == NULL) { |
4e0af881a drivers/block/ume... |
883 884 |
dev_printk(KERN_ERR, &card->dev->dev, "alloc failed "); |
1da177e4c Linux-2.6.12-rc2 |
885 886 887 888 889 890 891 892 893 894 895 896 897 898 |
goto failed_alloc; } reset_page(&card->mm_pages[0]); reset_page(&card->mm_pages[1]); card->Ready = 0; /* page 0 is ready */ card->Active = -1; /* no page is active */ card->bio = NULL; card->biotail = &card->bio; card->queue = blk_alloc_queue(GFP_KERNEL); if (!card->queue) goto failed_alloc; blk_queue_make_request(card->queue, mm_make_request); |
f3c737de8 umem: fix request... |
899 |
card->queue->queue_lock = &card->lock; |
1da177e4c Linux-2.6.12-rc2 |
900 |
card->queue->queuedata = card; |
1da177e4c Linux-2.6.12-rc2 |
901 902 903 904 |
tasklet_init(&card->tasklet, process_page, (unsigned long)card); card->check_batteries = 0; |
4e953a216 drivers/block/ume... |
905 |
|
1da177e4c Linux-2.6.12-rc2 |
906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 |
mem_present = readb(card->csr_remap + MEMCTRLSTATUS_MEMORY); switch (mem_present) { case MEM_128_MB: card->mm_size = 1024 * 128; break; case MEM_256_MB: card->mm_size = 1024 * 256; break; case MEM_512_MB: card->mm_size = 1024 * 512; break; case MEM_1_GB: card->mm_size = 1024 * 1024; break; case MEM_2_GB: card->mm_size = 1024 * 2048; break; default: card->mm_size = 0; break; } /* Clear the LED's we control */ set_led(card, LED_REMOVE, LED_OFF); set_led(card, LED_FAULT, LED_OFF); batt_status = readb(card->csr_remap + MEMCTRLSTATUS_BATTERY); card->battery[0].good = !(batt_status & BATTERY_1_FAILURE); card->battery[1].good = !(batt_status & BATTERY_2_FAILURE); card->battery[0].last_change = card->battery[1].last_change = jiffies; |
4e953a216 drivers/block/ume... |
937 |
if (card->flags & UM_FLAG_NO_BATT) |
4e0af881a drivers/block/ume... |
938 939 940 |
dev_printk(KERN_INFO, &card->dev->dev, "Size %d KB ", card->mm_size); |
1da177e4c Linux-2.6.12-rc2 |
941 |
else { |
4e0af881a drivers/block/ume... |
942 943 944 945 |
dev_printk(KERN_INFO, &card->dev->dev, "Size %d KB, Battery 1 %s (%s), Battery 2 %s (%s) ", card->mm_size, |
458cf5e9b Cleanup umem driv... |
946 |
batt_status & BATTERY_1_DISABLED ? "Disabled" : "Enabled", |
1da177e4c Linux-2.6.12-rc2 |
947 |
card->battery[0].good ? "OK" : "FAILURE", |
458cf5e9b Cleanup umem driv... |
948 |
batt_status & BATTERY_2_DISABLED ? "Disabled" : "Enabled", |
1da177e4c Linux-2.6.12-rc2 |
949 950 951 952 953 954 955 956 957 958 959 960 961 |
card->battery[1].good ? "OK" : "FAILURE"); set_fault_to_battery_status(card); } pci_read_config_dword(dev, PCI_BASE_ADDRESS_1, &saved_bar); data = 0xffffffff; pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, data); pci_read_config_dword(dev, PCI_BASE_ADDRESS_1, &data); pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, saved_bar); data &= 0xfffffff0; data = ~data; data += 1; |
458cf5e9b Cleanup umem driv... |
962 963 |
if (request_irq(dev->irq, mm_interrupt, IRQF_SHARED, DRIVER_NAME, card)) { |
4e0af881a drivers/block/ume... |
964 965 966 |
dev_printk(KERN_ERR, &card->dev->dev, "Unable to allocate IRQ "); |
1da177e4c Linux-2.6.12-rc2 |
967 |
ret = -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
968 969 |
goto failed_req_irq; } |
4e0af881a drivers/block/ume... |
970 |
dev_printk(KERN_INFO, &card->dev->dev, |
ee4a7b687 drivers/block/ume... |
971 972 |
"Window size %d bytes, IRQ %d ", data, dev->irq); |
1da177e4c Linux-2.6.12-rc2 |
973 |
|
458cf5e9b Cleanup umem driv... |
974 |
spin_lock_init(&card->lock); |
1da177e4c Linux-2.6.12-rc2 |
975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 |
pci_set_drvdata(dev, card); if (pci_write_cmd != 0x0F) /* If not Memory Write & Invalidate */ pci_write_cmd = 0x07; /* then Memory Write command */ if (pci_write_cmd & 0x08) { /* use Memory Write and Invalidate */ unsigned short cfg_command; pci_read_config_word(dev, PCI_COMMAND, &cfg_command); cfg_command |= 0x10; /* Memory Write & Invalidate Enable */ pci_write_config_word(dev, PCI_COMMAND, cfg_command); } pci_cmds = (pci_read_cmd << 28) | (pci_write_cmd << 24); num_cards++; if (!get_userbit(card, MEMORY_INITIALIZED)) { |
4e0af881a drivers/block/ume... |
992 |
dev_printk(KERN_INFO, &card->dev->dev, |
458cf5e9b Cleanup umem driv... |
993 994 |
"memory NOT initialized. Consider over-writing whole device. "); |
1da177e4c Linux-2.6.12-rc2 |
995 996 |
card->init_size = 0; } else { |
4e0af881a drivers/block/ume... |
997 998 999 |
dev_printk(KERN_INFO, &card->dev->dev, "memory already initialized "); |
1da177e4c Linux-2.6.12-rc2 |
1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 |
card->init_size = card->mm_size; } /* Enable ECC */ writeb(EDC_STORE_CORRECT, card->csr_remap + MEMCTRLCMD_ERRCTRL); return 0; failed_req_irq: failed_alloc: if (card->mm_pages[0].desc) pci_free_consistent(card->dev, PAGE_SIZE*2, card->mm_pages[0].desc, card->mm_pages[0].page_dma); if (card->mm_pages[1].desc) pci_free_consistent(card->dev, PAGE_SIZE*2, card->mm_pages[1].desc, card->mm_pages[1].page_dma); failed_magic: |
1da177e4c Linux-2.6.12-rc2 |
1019 1020 |
iounmap(card->csr_remap); failed_remap_csr: |
ee4a7b687 drivers/block/ume... |
1021 |
pci_release_regions(dev); |
1da177e4c Linux-2.6.12-rc2 |
1022 1023 1024 1025 |
failed_req_csr: return ret; } |
458cf5e9b Cleanup umem driv... |
1026 |
|
1da177e4c Linux-2.6.12-rc2 |
1027 1028 1029 1030 1031 |
static void mm_pci_remove(struct pci_dev *dev) { struct cardinfo *card = pci_get_drvdata(dev); tasklet_kill(&card->tasklet); |
ee4a7b687 drivers/block/ume... |
1032 |
free_irq(dev->irq, card); |
1da177e4c Linux-2.6.12-rc2 |
1033 |
iounmap(card->csr_remap); |
1da177e4c Linux-2.6.12-rc2 |
1034 1035 1036 1037 1038 1039 1040 1041 1042 |
if (card->mm_pages[0].desc) pci_free_consistent(card->dev, PAGE_SIZE*2, card->mm_pages[0].desc, card->mm_pages[0].page_dma); if (card->mm_pages[1].desc) pci_free_consistent(card->dev, PAGE_SIZE*2, card->mm_pages[1].desc, card->mm_pages[1].page_dma); |
1312f40e1 [PATCH] regulariz... |
1043 |
blk_cleanup_queue(card->queue); |
ee4a7b687 drivers/block/ume... |
1044 1045 1046 |
pci_release_regions(dev); pci_disable_device(dev); |
1da177e4c Linux-2.6.12-rc2 |
1047 |
} |
5874c18b1 umem: Fix match o... |
1048 |
static const struct pci_device_id mm_pci_ids[] = { |
458cf5e9b Cleanup umem driv... |
1049 1050 1051 |
{PCI_DEVICE(PCI_VENDOR_ID_MICRO_MEMORY, PCI_DEVICE_ID_MICRO_MEMORY_5415CN)}, {PCI_DEVICE(PCI_VENDOR_ID_MICRO_MEMORY, PCI_DEVICE_ID_MICRO_MEMORY_5425CN)}, {PCI_DEVICE(PCI_VENDOR_ID_MICRO_MEMORY, PCI_DEVICE_ID_MICRO_MEMORY_6155)}, |
5874c18b1 umem: Fix match o... |
1052 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1053 1054 |
.vendor = 0x8086, .device = 0xB555, |
458cf5e9b Cleanup umem driv... |
1055 1056 1057 1058 |
.subvendor = 0x1332, .subdevice = 0x5460, .class = 0x050000, .class_mask = 0, |
5874c18b1 umem: Fix match o... |
1059 |
}, { /* end: all zeroes */ } |
1da177e4c Linux-2.6.12-rc2 |
1060 1061 1062 1063 1064 |
}; MODULE_DEVICE_TABLE(pci, mm_pci_ids); static struct pci_driver mm_pci_driver = { |
ee4a7b687 drivers/block/ume... |
1065 1066 1067 1068 |
.name = DRIVER_NAME, .id_table = mm_pci_ids, .probe = mm_pci_probe, .remove = mm_pci_remove, |
1da177e4c Linux-2.6.12-rc2 |
1069 |
}; |
ee4a7b687 drivers/block/ume... |
1070 |
|
1da177e4c Linux-2.6.12-rc2 |
1071 1072 1073 1074 |
static int __init mm_init(void) { int retval, i; int err; |
9bfab8cec [PATCH] drivers/b... |
1075 |
retval = pci_register_driver(&mm_pci_driver); |
1da177e4c Linux-2.6.12-rc2 |
1076 1077 |
if (retval) return -ENOMEM; |
cb3503ca5 drivers/block/ume... |
1078 |
err = major_nr = register_blkdev(0, DRIVER_NAME); |
5a243e0e9 [PATCH] Fix failu... |
1079 1080 |
if (err < 0) { pci_unregister_driver(&mm_pci_driver); |
1da177e4c Linux-2.6.12-rc2 |
1081 |
return -EIO; |
5a243e0e9 [PATCH] Fix failu... |
1082 |
} |
1da177e4c Linux-2.6.12-rc2 |
1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 |
for (i = 0; i < num_cards; i++) { mm_gendisk[i] = alloc_disk(1 << MM_SHIFT); if (!mm_gendisk[i]) goto out; } for (i = 0; i < num_cards; i++) { struct gendisk *disk = mm_gendisk[i]; sprintf(disk->disk_name, "umem%c", 'a'+i); |
1da177e4c Linux-2.6.12-rc2 |
1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 |
spin_lock_init(&cards[i].lock); disk->major = major_nr; disk->first_minor = i << MM_SHIFT; disk->fops = &mm_fops; disk->private_data = &cards[i]; disk->queue = cards[i].queue; set_capacity(disk, cards[i].mm_size << 1); add_disk(disk); } init_battery_timer(); |
4e0af881a drivers/block/ume... |
1104 1105 |
printk(KERN_INFO "MM: desc_per_page = %ld ", DESC_PER_PAGE); |
1da177e4c Linux-2.6.12-rc2 |
1106 1107 1108 1109 1110 |
/* printk("mm_init: Done. 10-19-01 9:00 "); */ return 0; out: |
5a243e0e9 [PATCH] Fix failu... |
1111 |
pci_unregister_driver(&mm_pci_driver); |
cb3503ca5 drivers/block/ume... |
1112 |
unregister_blkdev(major_nr, DRIVER_NAME); |
1da177e4c Linux-2.6.12-rc2 |
1113 1114 1115 1116 |
while (i--) put_disk(mm_gendisk[i]); return -ENOMEM; } |
458cf5e9b Cleanup umem driv... |
1117 |
|
1da177e4c Linux-2.6.12-rc2 |
1118 1119 1120 1121 1122 |
static void __exit mm_cleanup(void) { int i; del_battery_timer(); |
458cf5e9b Cleanup umem driv... |
1123 |
for (i = 0; i < num_cards ; i++) { |
1da177e4c Linux-2.6.12-rc2 |
1124 1125 1126 1127 1128 |
del_gendisk(mm_gendisk[i]); put_disk(mm_gendisk[i]); } pci_unregister_driver(&mm_pci_driver); |
cb3503ca5 drivers/block/ume... |
1129 |
unregister_blkdev(major_nr, DRIVER_NAME); |
1da177e4c Linux-2.6.12-rc2 |
1130 1131 1132 1133 1134 1135 1136 1137 |
} module_init(mm_init); module_exit(mm_cleanup); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); |