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authorPierre Ossman <drzeus@drzeus.cx>2007-02-11 19:57:36 +0100
committerPierre Ossman <drzeus@drzeus.cx>2007-05-01 13:04:17 +0200
commit1c6a0718f0bfdab0d9b7da5f7b74f38a0058c03a (patch)
tree5e7f2a26d5d1782d87c596b40f874c6c0b8b8e1a /drivers/mmc/sdhci.c
parent98ac2162699f7e9880683cb954891817f20b607c (diff)
mmc: Move host and card drivers to subdirs
Clean up the drivers/mmc directory by moving card and host drivers into subdirectories. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/sdhci.c')
-rw-r--r--drivers/mmc/sdhci.c1539
1 files changed, 0 insertions, 1539 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
deleted file mode 100644
index 579142a7904..00000000000
--- a/drivers/mmc/sdhci.c
+++ /dev/null
@@ -1,1539 +0,0 @@
-/*
- * linux/drivers/mmc/sdhci.c - Secure Digital Host Controller Interface driver
- *
- * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-
-#include <linux/delay.h>
-#include <linux/highmem.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-
-#include <linux/mmc/host.h>
-
-#include <asm/scatterlist.h>
-
-#include "sdhci.h"
-
-#define DRIVER_NAME "sdhci"
-
-#define DBG(f, x...) \
- pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x)
-
-static unsigned int debug_nodma = 0;
-static unsigned int debug_forcedma = 0;
-static unsigned int debug_quirks = 0;
-
-#define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0)
-#define SDHCI_QUIRK_FORCE_DMA (1<<1)
-/* Controller doesn't like some resets when there is no card inserted. */
-#define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<2)
-#define SDHCI_QUIRK_SINGLE_POWER_WRITE (1<<3)
-
-static const struct pci_device_id pci_ids[] __devinitdata = {
- {
- .vendor = PCI_VENDOR_ID_RICOH,
- .device = PCI_DEVICE_ID_RICOH_R5C822,
- .subvendor = PCI_VENDOR_ID_IBM,
- .subdevice = PCI_ANY_ID,
- .driver_data = SDHCI_QUIRK_CLOCK_BEFORE_RESET |
- SDHCI_QUIRK_FORCE_DMA,
- },
-
- {
- .vendor = PCI_VENDOR_ID_RICOH,
- .device = PCI_DEVICE_ID_RICOH_R5C822,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .driver_data = SDHCI_QUIRK_FORCE_DMA |
- SDHCI_QUIRK_NO_CARD_NO_RESET,
- },
-
- {
- .vendor = PCI_VENDOR_ID_TI,
- .device = PCI_DEVICE_ID_TI_XX21_XX11_SD,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .driver_data = SDHCI_QUIRK_FORCE_DMA,
- },
-
- {
- .vendor = PCI_VENDOR_ID_ENE,
- .device = PCI_DEVICE_ID_ENE_CB712_SD,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE,
- },
-
- { /* Generic SD host controller */
- PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
- },
-
- { /* end: all zeroes */ },
-};
-
-MODULE_DEVICE_TABLE(pci, pci_ids);
-
-static void sdhci_prepare_data(struct sdhci_host *, struct mmc_data *);
-static void sdhci_finish_data(struct sdhci_host *);
-
-static void sdhci_send_command(struct sdhci_host *, struct mmc_command *);
-static void sdhci_finish_command(struct sdhci_host *);
-
-static void sdhci_dumpregs(struct sdhci_host *host)
-{
- printk(KERN_DEBUG DRIVER_NAME ": ============== REGISTER DUMP ==============\n");
-
- printk(KERN_DEBUG DRIVER_NAME ": Sys addr: 0x%08x | Version: 0x%08x\n",
- readl(host->ioaddr + SDHCI_DMA_ADDRESS),
- readw(host->ioaddr + SDHCI_HOST_VERSION));
- printk(KERN_DEBUG DRIVER_NAME ": Blk size: 0x%08x | Blk cnt: 0x%08x\n",
- readw(host->ioaddr + SDHCI_BLOCK_SIZE),
- readw(host->ioaddr + SDHCI_BLOCK_COUNT));
- printk(KERN_DEBUG DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n",
- readl(host->ioaddr + SDHCI_ARGUMENT),
- readw(host->ioaddr + SDHCI_TRANSFER_MODE));
- printk(KERN_DEBUG DRIVER_NAME ": Present: 0x%08x | Host ctl: 0x%08x\n",
- readl(host->ioaddr + SDHCI_PRESENT_STATE),
- readb(host->ioaddr + SDHCI_HOST_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Power: 0x%08x | Blk gap: 0x%08x\n",
- readb(host->ioaddr + SDHCI_POWER_CONTROL),
- readb(host->ioaddr + SDHCI_BLOCK_GAP_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Wake-up: 0x%08x | Clock: 0x%08x\n",
- readb(host->ioaddr + SDHCI_WALK_UP_CONTROL),
- readw(host->ioaddr + SDHCI_CLOCK_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Timeout: 0x%08x | Int stat: 0x%08x\n",
- readb(host->ioaddr + SDHCI_TIMEOUT_CONTROL),
- readl(host->ioaddr + SDHCI_INT_STATUS));
- printk(KERN_DEBUG DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n",
- readl(host->ioaddr + SDHCI_INT_ENABLE),
- readl(host->ioaddr + SDHCI_SIGNAL_ENABLE));
- printk(KERN_DEBUG DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n",
- readw(host->ioaddr + SDHCI_ACMD12_ERR),
- readw(host->ioaddr + SDHCI_SLOT_INT_STATUS));
- printk(KERN_DEBUG DRIVER_NAME ": Caps: 0x%08x | Max curr: 0x%08x\n",
- readl(host->ioaddr + SDHCI_CAPABILITIES),
- readl(host->ioaddr + SDHCI_MAX_CURRENT));
-
- printk(KERN_DEBUG DRIVER_NAME ": ===========================================\n");
-}
-
-/*****************************************************************************\
- * *
- * Low level functions *
- * *
-\*****************************************************************************/
-
-static void sdhci_reset(struct sdhci_host *host, u8 mask)
-{
- unsigned long timeout;
-
- if (host->chip->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) {
- if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) &
- SDHCI_CARD_PRESENT))
- return;
- }
-
- writeb(mask, host->ioaddr + SDHCI_SOFTWARE_RESET);
-
- if (mask & SDHCI_RESET_ALL)
- host->clock = 0;
-
- /* Wait max 100 ms */
- timeout = 100;
-
- /* hw clears the bit when it's done */
- while (readb(host->ioaddr + SDHCI_SOFTWARE_RESET) & mask) {
- if (timeout == 0) {
- printk(KERN_ERR "%s: Reset 0x%x never completed.\n",
- mmc_hostname(host->mmc), (int)mask);
- sdhci_dumpregs(host);
- return;
- }
- timeout--;
- mdelay(1);
- }
-}
-
-static void sdhci_init(struct sdhci_host *host)
-{
- u32 intmask;
-
- sdhci_reset(host, SDHCI_RESET_ALL);
-
- intmask = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT |
- SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_INDEX |
- SDHCI_INT_END_BIT | SDHCI_INT_CRC | SDHCI_INT_TIMEOUT |
- SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT |
- SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL |
- SDHCI_INT_DMA_END | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE;
-
- writel(intmask, host->ioaddr + SDHCI_INT_ENABLE);
- writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE);
-}
-
-static void sdhci_activate_led(struct sdhci_host *host)
-{
- u8 ctrl;
-
- ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
- ctrl |= SDHCI_CTRL_LED;
- writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
-}
-
-static void sdhci_deactivate_led(struct sdhci_host *host)
-{
- u8 ctrl;
-
- ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
- ctrl &= ~SDHCI_CTRL_LED;
- writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
-}
-
-/*****************************************************************************\
- * *
- * Core functions *
- * *
-\*****************************************************************************/
-
-static inline char* sdhci_sg_to_buffer(struct sdhci_host* host)
-{
- return page_address(host->cur_sg->page) + host->cur_sg->offset;
-}
-
-static inline int sdhci_next_sg(struct sdhci_host* host)
-{
- /*
- * Skip to next SG entry.
- */
- host->cur_sg++;
- host->num_sg--;
-
- /*
- * Any entries left?
- */
- if (host->num_sg > 0) {
- host->offset = 0;
- host->remain = host->cur_sg->length;
- }
-
- return host->num_sg;
-}
-
-static void sdhci_read_block_pio(struct sdhci_host *host)
-{
- int blksize, chunk_remain;
- u32 data;
- char *buffer;
- int size;
-
- DBG("PIO reading\n");
-
- blksize = host->data->blksz;
- chunk_remain = 0;
- data = 0;
-
- buffer = sdhci_sg_to_buffer(host) + host->offset;
-
- while (blksize) {
- if (chunk_remain == 0) {
- data = readl(host->ioaddr + SDHCI_BUFFER);
- chunk_remain = min(blksize, 4);
- }
-
- size = min(host->remain, chunk_remain);
-
- chunk_remain -= size;
- blksize -= size;
- host->offset += size;
- host->remain -= size;
-
- while (size) {
- *buffer = data & 0xFF;
- buffer++;
- data >>= 8;
- size--;
- }
-
- if (host->remain == 0) {
- if (sdhci_next_sg(host) == 0) {
- BUG_ON(blksize != 0);
- return;
- }
- buffer = sdhci_sg_to_buffer(host);
- }
- }
-}
-
-static void sdhci_write_block_pio(struct sdhci_host *host)
-{
- int blksize, chunk_remain;
- u32 data;
- char *buffer;
- int bytes, size;
-
- DBG("PIO writing\n");
-
- blksize = host->data->blksz;
- chunk_remain = 4;
- data = 0;
-
- bytes = 0;
- buffer = sdhci_sg_to_buffer(host) + host->offset;
-
- while (blksize) {
- size = min(host->remain, chunk_remain);
-
- chunk_remain -= size;
- blksize -= size;
- host->offset += size;
- host->remain -= size;
-
- while (size) {
- data >>= 8;
- data |= (u32)*buffer << 24;
- buffer++;
- size--;
- }
-
- if (chunk_remain == 0) {
- writel(data, host->ioaddr + SDHCI_BUFFER);
- chunk_remain = min(blksize, 4);
- }
-
- if (host->remain == 0) {
- if (sdhci_next_sg(host) == 0) {
- BUG_ON(blksize != 0);
- return;
- }
- buffer = sdhci_sg_to_buffer(host);
- }
- }
-}
-
-static void sdhci_transfer_pio(struct sdhci_host *host)
-{
- u32 mask;
-
- BUG_ON(!host->data);
-
- if (host->num_sg == 0)
- return;
-
- if (host->data->flags & MMC_DATA_READ)
- mask = SDHCI_DATA_AVAILABLE;
- else
- mask = SDHCI_SPACE_AVAILABLE;
-
- while (readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask) {
- if (host->data->flags & MMC_DATA_READ)
- sdhci_read_block_pio(host);
- else
- sdhci_write_block_pio(host);
-
- if (host->num_sg == 0)
- break;
- }
-
- DBG("PIO transfer complete.\n");
-}
-
-static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
-{
- u8 count;
- unsigned target_timeout, current_timeout;
-
- WARN_ON(host->data);
-
- if (data == NULL)
- return;
-
- DBG("blksz %04x blks %04x flags %08x\n",
- data->blksz, data->blocks, data->flags);
- DBG("tsac %d ms nsac %d clk\n",
- data->timeout_ns / 1000000, data->timeout_clks);
-
- /* Sanity checks */
- BUG_ON(data->blksz * data->blocks > 524288);
- BUG_ON(data->blksz > host->mmc->max_blk_size);
- BUG_ON(data->blocks > 65535);
-
- /* timeout in us */
- target_timeout = data->timeout_ns / 1000 +
- data->timeout_clks / host->clock;
-
- /*
- * Figure out needed cycles.
- * We do this in steps in order to fit inside a 32 bit int.
- * The first step is the minimum timeout, which will have a
- * minimum resolution of 6 bits:
- * (1) 2^13*1000 > 2^22,
- * (2) host->timeout_clk < 2^16
- * =>
- * (1) / (2) > 2^6
- */
- count = 0;
- current_timeout = (1 << 13) * 1000 / host->timeout_clk;
- while (current_timeout < target_timeout) {
- count++;
- current_timeout <<= 1;
- if (count >= 0xF)
- break;
- }
-
- if (count >= 0xF) {
- printk(KERN_WARNING "%s: Too large timeout requested!\n",
- mmc_hostname(host->mmc));
- count = 0xE;
- }
-
- writeb(count, host->ioaddr + SDHCI_TIMEOUT_CONTROL);
-
- if (host->flags & SDHCI_USE_DMA) {
- int count;
-
- count = pci_map_sg(host->chip->pdev, data->sg, data->sg_len,
- (data->flags & MMC_DATA_READ)?PCI_DMA_FROMDEVICE:PCI_DMA_TODEVICE);
- BUG_ON(count != 1);
-
- writel(sg_dma_address(data->sg), host->ioaddr + SDHCI_DMA_ADDRESS);
- } else {
- host->cur_sg = data->sg;
- host->num_sg = data->sg_len;
-
- host->offset = 0;
- host->remain = host->cur_sg->length;
- }
-
- /* We do not handle DMA boundaries, so set it to max (512 KiB) */
- writew(SDHCI_MAKE_BLKSZ(7, data->blksz),
- host->ioaddr + SDHCI_BLOCK_SIZE);
- writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT);
-}
-
-static void sdhci_set_transfer_mode(struct sdhci_host *host,
- struct mmc_data *data)
-{
- u16 mode;
-
- WARN_ON(host->data);
-
- if (data == NULL)
- return;
-
- mode = SDHCI_TRNS_BLK_CNT_EN;
- if (data->blocks > 1)
- mode |= SDHCI_TRNS_MULTI;
- if (data->flags & MMC_DATA_READ)
- mode |= SDHCI_TRNS_READ;
- if (host->flags & SDHCI_USE_DMA)
- mode |= SDHCI_TRNS_DMA;
-
- writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE);
-}
-
-static void sdhci_finish_data(struct sdhci_host *host)
-{
- struct mmc_data *data;
- u16 blocks;
-
- BUG_ON(!host->data);
-
- data = host->data;
- host->data = NULL;
-
- if (host->flags & SDHCI_USE_DMA) {
- pci_unmap_sg(host->chip->pdev, data->sg, data->sg_len,
- (data->flags & MMC_DATA_READ)?PCI_DMA_FROMDEVICE:PCI_DMA_TODEVICE);
- }
-
- /*
- * Controller doesn't count down when in single block mode.
- */
- if ((data->blocks == 1) && (data->error == MMC_ERR_NONE))
- blocks = 0;
- else
- blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
- data->bytes_xfered = data->blksz * (data->blocks - blocks);
-
- if ((data->error == MMC_ERR_NONE) && blocks) {
- printk(KERN_ERR "%s: Controller signalled completion even "
- "though there were blocks left.\n",
- mmc_hostname(host->mmc));
- data->error = MMC_ERR_FAILED;
- }
-
- DBG("Ending data transfer (%d bytes)\n", data->bytes_xfered);
-
- if (data->stop) {
- /*
- * The controller needs a reset of internal state machines
- * upon error conditions.
- */
- if (data->error != MMC_ERR_NONE) {
- sdhci_reset(host, SDHCI_RESET_CMD);
- sdhci_reset(host, SDHCI_RESET_DATA);
- }
-
- sdhci_send_command(host, data->stop);
- } else
- tasklet_schedule(&host->finish_tasklet);
-}
-
-static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
-{
- int flags;
- u32 mask;
- unsigned long timeout;
-
- WARN_ON(host->cmd);
-
- DBG("Sending cmd (%x)\n", cmd->opcode);
-
- /* Wait max 10 ms */
- timeout = 10;
-
- mask = SDHCI_CMD_INHIBIT;
- if ((cmd->data != NULL) || (cmd->flags & MMC_RSP_BUSY))
- mask |= SDHCI_DATA_INHIBIT;
-
- /* We shouldn't wait for data inihibit for stop commands, even
- though they might use busy signaling */
- if (host->mrq->data && (cmd == host->mrq->data->stop))
- mask &= ~SDHCI_DATA_INHIBIT;
-
- while (readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask) {
- if (timeout == 0) {
- printk(KERN_ERR "%s: Controller never released "
- "inhibit bit(s).\n", mmc_hostname(host->mmc));
- sdhci_dumpregs(host);
- cmd->error = MMC_ERR_FAILED;
- tasklet_schedule(&host->finish_tasklet);
- return;
- }
- timeout--;
- mdelay(1);
- }
-
- mod_timer(&host->timer, jiffies + 10 * HZ);
-
- host->cmd = cmd;
-
- sdhci_prepare_data(host, cmd->data);
-
- writel(cmd->arg, host->ioaddr + SDHCI_ARGUMENT);
-
- sdhci_set_transfer_mode(host, cmd->data);
-
- if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
- printk(KERN_ERR "%s: Unsupported response type!\n",
- mmc_hostname(host->mmc));
- cmd->error = MMC_ERR_INVALID;
- tasklet_schedule(&host->finish_tasklet);
- return;
- }
-
- if (!(cmd->flags & MMC_RSP_PRESENT))
- flags = SDHCI_CMD_RESP_NONE;
- else if (cmd->flags & MMC_RSP_136)
- flags = SDHCI_CMD_RESP_LONG;
- else if (cmd->flags & MMC_RSP_BUSY)
- flags = SDHCI_CMD_RESP_SHORT_BUSY;
- else
- flags = SDHCI_CMD_RESP_SHORT;
-
- if (cmd->flags & MMC_RSP_CRC)
- flags |= SDHCI_CMD_CRC;
- if (cmd->flags & MMC_RSP_OPCODE)
- flags |= SDHCI_CMD_INDEX;
- if (cmd->data)
- flags |= SDHCI_CMD_DATA;
-
- writew(SDHCI_MAKE_CMD(cmd->opcode, flags),
- host->ioaddr + SDHCI_COMMAND);
-}
-
-static void sdhci_finish_command(struct sdhci_host *host)
-{
- int i;
-
- BUG_ON(host->cmd == NULL);
-
- if (host->cmd->flags & MMC_RSP_PRESENT) {
- if (host->cmd->flags & MMC_RSP_136) {
- /* CRC is stripped so we need to do some shifting. */
- for (i = 0;i < 4;i++) {
- host->cmd->resp[i] = readl(host->ioaddr +
- SDHCI_RESPONSE + (3-i)*4) << 8;
- if (i != 3)
- host->cmd->resp[i] |=
- readb(host->ioaddr +
- SDHCI_RESPONSE + (3-i)*4-1);
- }
- } else {
- host->cmd->resp[0] = readl(host->ioaddr + SDHCI_RESPONSE);
- }
- }
-
- host->cmd->error = MMC_ERR_NONE;
-
- DBG("Ending cmd (%x)\n", host->cmd->opcode);
-
- if (host->cmd->data)
- host->data = host->cmd->data;
- else
- tasklet_schedule(&host->finish_tasklet);
-
- host->cmd = NULL;
-}
-
-static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
-{
- int div;
- u16 clk;
- unsigned long timeout;
-
- if (clock == host->clock)
- return;
-
- writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL);
-
- if (clock == 0)
- goto out;
-
- for (div = 1;div < 256;div *= 2) {
- if ((host->max_clk / div) <= clock)
- break;
- }
- div >>= 1;
-
- clk = div << SDHCI_DIVIDER_SHIFT;
- clk |= SDHCI_CLOCK_INT_EN;
- writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL);
-
- /* Wait max 10 ms */
- timeout = 10;
- while (!((clk = readw(host->ioaddr + SDHCI_CLOCK_CONTROL))
- & SDHCI_CLOCK_INT_STABLE)) {
- if (timeout == 0) {
- printk(KERN_ERR "%s: Internal clock never "
- "stabilised.\n", mmc_hostname(host->mmc));
- sdhci_dumpregs(host);
- return;
- }
- timeout--;
- mdelay(1);
- }
-
- clk |= SDHCI_CLOCK_CARD_EN;
- writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL);
-
-out:
- host->clock = clock;
-}
-
-static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
-{
- u8 pwr;
-
- if (host->power == power)
- return;
-
- if (power == (unsigned short)-1) {
- writeb(0, host->ioaddr + SDHCI_POWER_CONTROL);
- goto out;
- }
-
- /*
- * Spec says that we should clear the power reg before setting
- * a new value. Some controllers don't seem to like this though.
- */
- if (!(host->chip->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE))
- writeb(0, host->ioaddr + SDHCI_POWER_CONTROL);
-
- pwr = SDHCI_POWER_ON;
-
- switch (power) {
- case MMC_VDD_170:
- case MMC_VDD_180:
- case MMC_VDD_190:
- pwr |= SDHCI_POWER_180;
- break;
- case MMC_VDD_290:
- case MMC_VDD_300:
- case MMC_VDD_310:
- pwr |= SDHCI_POWER_300;
- break;
- case MMC_VDD_320:
- case MMC_VDD_330:
- case MMC_VDD_340:
- pwr |= SDHCI_POWER_330;
- break;
- default:
- BUG();
- }
-
- writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL);
-
-out:
- host->power = power;
-}
-
-/*****************************************************************************\
- * *
- * MMC callbacks *
- * *
-\*****************************************************************************/
-
-static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
- struct sdhci_host *host;
- unsigned long flags;
-
- host = mmc_priv(mmc);
-
- spin_lock_irqsave(&host->lock, flags);
-
- WARN_ON(host->mrq != NULL);
-
- sdhci_activate_led(host);
-
- host->mrq = mrq;
-
- if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
- host->mrq->cmd->error = MMC_ERR_TIMEOUT;
- tasklet_schedule(&host->finish_tasklet);
- } else
- sdhci_send_command(host, mrq->cmd);
-
- mmiowb();
- spin_unlock_irqrestore(&host->lock, flags);
-}
-
-static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
- struct sdhci_host *host;
- unsigned long flags;
- u8 ctrl;
-
- host = mmc_priv(mmc);
-
- spin_lock_irqsave(&host->lock, flags);
-
- /*
- * Reset the chip on each power off.
- * Should clear out any weird states.
- */
- if (ios->power_mode == MMC_POWER_OFF) {
- writel(0, host->ioaddr + SDHCI_SIGNAL_ENABLE);
- sdhci_init(host);
- }
-
- sdhci_set_clock(host, ios->clock);
-
- if (ios->power_mode == MMC_POWER_OFF)
- sdhci_set_power(host, -1);
- else
- sdhci_set_power(host, ios->vdd);
-
- ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
-
- if (ios->bus_width == MMC_BUS_WIDTH_4)
- ctrl |= SDHCI_CTRL_4BITBUS;
- else
- ctrl &= ~SDHCI_CTRL_4BITBUS;
-
- if (ios->timing == MMC_TIMING_SD_HS)
- ctrl |= SDHCI_CTRL_HISPD;
- else
- ctrl &= ~SDHCI_CTRL_HISPD;
-
- writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
-
- mmiowb();
- spin_unlock_irqrestore(&host->lock, flags);
-}
-
-static int sdhci_get_ro(struct mmc_host *mmc)
-{
- struct sdhci_host *host;
- unsigned long flags;
- int present;
-
- host = mmc_priv(mmc);
-
- spin_lock_irqsave(&host->lock, flags);
-
- present = readl(host->ioaddr + SDHCI_PRESENT_STATE);
-
- spin_unlock_irqrestore(&host->lock, flags);
-
- return !(present & SDHCI_WRITE_PROTECT);
-}
-
-static const struct mmc_host_ops sdhci_ops = {
- .request = sdhci_request,
- .set_ios = sdhci_set_ios,
- .get_ro = sdhci_get_ro,
-};
-
-/*****************************************************************************\
- * *
- * Tasklets *
- * *
-\*****************************************************************************/
-
-static void sdhci_tasklet_card(unsigned long param)
-{
- struct sdhci_host *host;
- unsigned long flags;
-
- host = (struct sdhci_host*)param;
-
- spin_lock_irqsave(&host->lock, flags);
-
- if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
- if (host->mrq) {
- printk(KERN_ERR "%s: Card removed during transfer!\n",
- mmc_hostname(host->mmc));
- printk(KERN_ERR "%s: Resetting controller.\n",
- mmc_hostname(host->mmc));
-
- sdhci_reset(host, SDHCI_RESET_CMD);
- sdhci_reset(host, SDHCI_RESET_DATA);
-
- host->mrq->cmd->error = MMC_ERR_FAILED;
- tasklet_schedule(&host->finish_tasklet);
- }
- }
-
- spin_unlock_irqrestore(&host->lock, flags);
-
- mmc_detect_change(host->mmc, msecs_to_jiffies(500));
-}
-
-static void sdhci_tasklet_finish(unsigned long param)
-{
- struct sdhci_host *host;
- unsigned long flags;
- struct mmc_request *mrq;
-
- host = (struct sdhci_host*)param;
-
- spin_lock_irqsave(&host->lock, flags);
-
- del_timer(&host->timer);
-
- mrq = host->mrq;
-
- DBG("Ending request, cmd (%x)\n", mrq->cmd->opcode);
-
- /*
- * The controller needs a reset of internal state machines
- * upon error conditions.
- */
- if ((mrq->cmd->error != MMC_ERR_NONE) ||
- (mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
- (mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
-
- /* Some controllers need this kick or reset won't work here */
- if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
- unsigned int clock;
-
- /* This is to force an update */
- clock = host->clock;
- host->clock = 0;
- sdhci_set_clock(host, clock);
- }
-
- /* Spec says we should do both at the same time, but Ricoh
- controllers do not like that. */
- sdhci_reset(host, SDHCI_RESET_CMD);
- sdhci_reset(host, SDHCI_RESET_DATA);
- }
-
- host->mrq = NULL;
- host->cmd = NULL;
- host->data = NULL;
-
- sdhci_deactivate_led(host);
-
- mmiowb();
- spin_unlock_irqrestore(&host->lock, flags);
-
- mmc_request_done(host->mmc, mrq);
-}
-
-static void sdhci_timeout_timer(unsigned long data)
-{
- struct sdhci_host *host;
- unsigned long flags;
-
- host = (struct sdhci_host*)data;
-
- spin_lock_irqsave(&host->lock, flags);
-
- if (host->mrq) {
- printk(KERN_ERR "%s: Timeout waiting for hardware "
- "interrupt.\n", mmc_hostname(host->mmc));
- sdhci_dumpregs(host);
-
- if (host->data) {
- host->data->error = MMC_ERR_TIMEOUT;
- sdhci_finish_data(host);
- } else {
- if (host->cmd)
- host->cmd->error = MMC_ERR_TIMEOUT;
- else
- host->mrq->cmd->error = MMC_ERR_TIMEOUT;
-
- tasklet_schedule(&host->finish_tasklet);
- }
- }
-
- mmiowb();
- spin_unlock_irqrestore(&host->lock, flags);
-}
-
-/*****************************************************************************\
- * *
- * Interrupt handling *
- * *
-\*****************************************************************************/
-
-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
-{
- BUG_ON(intmask == 0);
-
- if (!host->cmd) {
- printk(KERN_ERR "%s: Got command interrupt even though no "
- "command operation was in progress.\n",
- mmc_hostname(host->mmc));
- sdhci_dumpregs(host);
- return;
- }
-
- if (intmask & SDHCI_INT_RESPONSE)
- sdhci_finish_command(host);
- else {
- if (intmask & SDHCI_INT_TIMEOUT)
- host->cmd->error = MMC_ERR_TIMEOUT;
- else if (intmask & SDHCI_INT_CRC)
- host->cmd->error = MMC_ERR_BADCRC;
- else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
- host->cmd->error = MMC_ERR_FAILED;
- else
- host->cmd->error = MMC_ERR_INVALID;
-
- tasklet_schedule(&host->finish_tasklet);
- }
-}
-
-static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
-{
- BUG_ON(intmask == 0);
-
- if (!host->data) {
- /*
- * A data end interrupt is sent together with the response
- * for the stop command.
- */
- if (intmask & SDHCI_INT_DATA_END)
- return;
-
- printk(KERN_ERR "%s: Got data interrupt even though no "
- "data operation was in progress.\n",
- mmc_hostname(host->mmc));
- sdhci_dumpregs(host);
-
- return;
- }
-
- if (intmask & SDHCI_INT_DATA_TIMEOUT)
- host->data->error = MMC_ERR_TIMEOUT;
- else if (intmask & SDHCI_INT_DATA_CRC)
- host->data->error = MMC_ERR_BADCRC;
- else if (intmask & SDHCI_INT_DATA_END_BIT)
- host->data->error = MMC_ERR_FAILED;
-
- if (host->data->error != MMC_ERR_NONE)
- sdhci_finish_data(host);
- else {
- if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
- sdhci_transfer_pio(host);
-
- if (intmask & SDHCI_INT_DATA_END)
- sdhci_finish_data(host);
- }
-}
-
-static irqreturn_t sdhci_irq(int irq, void *dev_id)
-{
- irqreturn_t result;
- struct sdhci_host* host = dev_id;
- u32 intmask;
-
- spin_lock(&host->lock);
-
- intmask = readl(host->ioaddr + SDHCI_INT_STATUS);
-
- if (!intmask || intmask == 0xffffffff) {
- result = IRQ_NONE;
- goto out;
- }
-
- DBG("*** %s got interrupt: 0x%08x\n", host->slot_descr, intmask);
-
- if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE)) {
- writel(intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE),
- host->ioaddr + SDHCI_INT_STATUS);
- tasklet_schedule(&host->card_tasklet);
- }
-
- intmask &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE);
-
- if (intmask & SDHCI_INT_CMD_MASK) {
- writel(intmask & SDHCI_INT_CMD_MASK,
- host->ioaddr + SDHCI_INT_STATUS);
- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
- }
-
- if (intmask & SDHCI_INT_DATA_MASK) {
- writel(intmask & SDHCI_INT_DATA_MASK,
- host->ioaddr + SDHCI_INT_STATUS);
- sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
- }
-
- intmask &= ~(SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK);
-
- if (intmask & SDHCI_INT_BUS_POWER) {
- printk(KERN_ERR "%s: Card is consuming too much power!\n",
- mmc_hostname(host->mmc));
- writel(SDHCI_INT_BUS_POWER, host->ioaddr + SDHCI_INT_STATUS);
- }
-
- intmask &= SDHCI_INT_BUS_POWER;
-
- if (intmask) {
- printk(KERN_ERR "%s: Unexpected interrupt 0x%08x.\n",
- mmc_hostname(host->mmc), intmask);
- sdhci_dumpregs(host);
-
- writel(intmask, host->ioaddr + SDHCI_INT_STATUS);
- }
-
- result = IRQ_HANDLED;
-
- mmiowb();
-out:
- spin_unlock(&host->lock);
-
- return result;
-}
-
-/*****************************************************************************\
- * *
- * Suspend/resume *
- * *
-\*****************************************************************************/
-
-#ifdef CONFIG_PM
-
-static int sdhci_suspend (struct pci_dev *pdev, pm_message_t state)
-{
- struct sdhci_chip *chip;
- int i, ret;
-
- chip = pci_get_drvdata(pdev);
- if (!chip)
- return 0;
-
- DBG("Suspending...\n");
-
- for (i = 0;i < chip->num_slots;i++) {
- if (!chip->hosts[i])
- continue;
- ret = mmc_suspend_host(chip->hosts[i]->mmc, state);
- if (ret) {
- for (i--;i >= 0;i--)
- mmc_resume_host(chip->hosts[i]->mmc);
- return ret;
- }
- }
-
- pci_save_state(pdev);
- pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
-
- for (i = 0;i < chip->num_slots;i++) {
- if (!chip->hosts[i])
- continue;
- free_irq(chip->hosts[i]->irq, chip->hosts[i]);
- }
-
- pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
- return 0;
-}
-
-static int sdhci_resume (struct pci_dev *pdev)
-{
- struct sdhci_chip *chip;
- int i, ret;
-
- chip = pci_get_drvdata(pdev);
- if (!chip)
- return 0;
-
- DBG("Resuming...\n");
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- ret = pci_enable_device(pdev);
- if (ret)
- return ret;
-
- for (i = 0;i < chip->num_slots;i++) {
- if (!chip->hosts[i])
- continue;
- if (chip->hosts[i]->flags & SDHCI_USE_DMA)
- pci_set_master(pdev);
- ret = request_irq(chip->hosts[i]->irq, sdhci_irq,
- IRQF_SHARED, chip->hosts[i]->slot_descr,
- chip->hosts[i]);
- if (ret)
- return ret;
- sdhci_init(chip->hosts[i]);
- mmiowb();
- ret = mmc_resume_host(chip->hosts[i]->mmc);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-#else /* CONFIG_PM */
-
-#define sdhci_suspend NULL
-#define sdhci_resume NULL
-
-#endif /* CONFIG_PM */
-
-/*****************************************************************************\
- * *
- * Device probing/removal *
- * *
-\*****************************************************************************/
-
-static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
-{
- int ret;
- unsigned int version;
- struct sdhci_chip *chip;
- struct mmc_host *mmc;
- struct sdhci_host *host;
-
- u8 first_bar;
- unsigned int caps;
-
- chip = pci_get_drvdata(pdev);
- BUG_ON(!chip);
-
- ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
- if (ret)
- return ret;
-
- first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
-
- if (first_bar > 5) {
- printk(KERN_ERR DRIVER_NAME ": Invalid first BAR. Aborting.\n");
- return -ENODEV;
- }
-
- if (!(pci_resource_flags(pdev, first_bar + slot) & IORESOURCE_MEM)) {
- printk(KERN_ERR DRIVER_NAME ": BAR is not iomem. Aborting.\n");
- return -ENODEV;
- }
-
- if (pci_resource_len(pdev, first_bar + slot) != 0x100) {
- printk(KERN_ERR DRIVER_NAME ": Invalid iomem size. "
- "You may experience problems.\n");
- }
-
- if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
- printk(KERN_ERR DRIVER_NAME ": Vendor specific interface. Aborting.\n");
- return -ENODEV;
- }
-
- if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
- printk(KERN_ERR DRIVER_NAME ": Unknown interface. Aborting.\n");
- return -ENODEV;
- }
-
- mmc = mmc_alloc_host(sizeof(struct sdhci_host), &pdev->dev);
- if (!mmc)
- return -ENOMEM;
-
- host = mmc_priv(mmc);
- host->mmc = mmc;
-
- host->chip = chip;
- chip->hosts[slot] = host;
-
- host->bar = first_bar + slot;
-
- host->addr = pci_resource_start(pdev, host->bar);
- host->irq = pdev->irq;
-
- DBG("slot %d at 0x%08lx, irq %d\n", slot, host->addr, host->irq);
-
- snprintf(host->slot_descr, 20, "sdhci:slot%d", slot);
-
- ret = pci_request_region(pdev, host->bar, host->slot_descr);
- if (ret)
- goto free;
-
- host->ioaddr = ioremap_nocache(host->addr,
- pci_resource_len(pdev, host->bar));
- if (!host->ioaddr) {
- ret = -ENOMEM;
- goto release;
- }
-
- sdhci_reset(host, SDHCI_RESET_ALL);
-
- version = readw(host->ioaddr + SDHCI_HOST_VERSION);
- version = (version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;
- if (version != 0) {
- printk(KERN_ERR "%s: Unknown controller version (%d). "
- "You may experience problems.\n", host->slot_descr,
- version);
- }
-
- caps = readl(host->ioaddr + SDHCI_CAPABILITIES);
-
- if (debug_nodma)
- DBG("DMA forced off\n");
- else if (debug_forcedma) {
- DBG("DMA forced on\n");
- host->flags |= SDHCI_USE_DMA;
- } else if (chip->quirks & SDHCI_QUIRK_FORCE_DMA)
- host->flags |= SDHCI_USE_DMA;
- else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
- DBG("Controller doesn't have DMA interface\n");
- else if (!(caps & SDHCI_CAN_DO_DMA))
- DBG("Controller doesn't have DMA capability\n");
- else
- host->flags |= SDHCI_USE_DMA;
-
- if (host->flags & SDHCI_USE_DMA) {
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
- printk(KERN_WARNING "%s: No suitable DMA available. "
- "Falling back to PIO.\n", host->slot_descr);
- host->flags &= ~SDHCI_USE_DMA;
- }
- }
-
- if (host->flags & SDHCI_USE_DMA)
- pci_set_master(pdev);
- else /* XXX: Hack to get MMC layer to avoid highmem */
- pdev->dma_mask = 0;
-
- host->max_clk =
- (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
- if (host->max_clk == 0) {
- printk(KERN_ERR "%s: Hardware doesn't specify base clock "
- "frequency.\n", host->slot_descr);
- ret = -ENODEV;
- goto unmap;
- }
- host->max_clk *= 1000000;
-
- host->timeout_clk =
- (caps & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT;
- if (host->timeout_clk == 0) {
- printk(KERN_ERR "%s: Hardware doesn't specify timeout clock "
- "frequency.\n", host->slot_descr);
- ret = -ENODEV;
- goto unmap;
- }
- if (caps & SDHCI_TIMEOUT_CLK_UNIT)
- host->timeout_clk *= 1000;
-
- /*
- * Set host parameters.
- */
- mmc->ops = &sdhci_ops;
- mmc->f_min = host->max_clk / 256;
- mmc->f_max = host->max_clk;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE | MMC_CAP_BYTEBLOCK;
-
- if (caps & SDHCI_CAN_DO_HISPD)
- mmc->caps |= MMC_CAP_SD_HIGHSPEED;
-
- mmc->ocr_avail = 0;
- if (caps & SDHCI_CAN_VDD_330)
- mmc->ocr_avail |= MMC_VDD_32_33|MMC_VDD_33_34;
- if (caps & SDHCI_CAN_VDD_300)
- mmc->ocr_avail |= MMC_VDD_29_30|MMC_VDD_30_31;
- if (caps & SDHCI_CAN_VDD_180)
- mmc->ocr_avail |= MMC_VDD_17_18|MMC_VDD_18_19;
-
- if (mmc->ocr_avail == 0) {
- printk(KERN_ERR "%s: Hardware doesn't report any "
- "support voltages.\n", host->slot_descr);
- ret = -ENODEV;
- goto unmap;
- }
-
- spin_lock_init(&host->lock);
-
- /*
- * Maximum number of segments. Hardware cannot do scatter lists.
- */
- if (host->flags & SDHCI_USE_DMA)
- mmc->max_hw_segs = 1;
- else
- mmc->max_hw_segs = 16;
- mmc->max_phys_segs = 16;
-
- /*
- * Maximum number of sectors in one transfer. Limited by DMA boundary
- * size (512KiB).
- */
- mmc->max_req_size = 524288;
-
- /*
- * Maximum segment size. Could be one segment with the maximum number
- * of bytes.
- */
- mmc->max_seg_size = mmc->max_req_size;
-
- /*
- * Maximum block size. This varies from controller to controller and
- * is specified in the capabilities register.
- */
- mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >> SDHCI_MAX_BLOCK_SHIFT;
- if (mmc->max_blk_size >= 3) {
- printk(KERN_ERR "%s: Invalid maximum block size.\n",
- host->slot_descr);
- ret = -ENODEV;
- goto unmap;
- }
- mmc->max_blk_size = 512 << mmc->max_blk_size;
-
- /*
- * Maximum block count.
- */
- mmc->max_blk_count = 65535;
-
- /*
- * Init tasklets.
- */
- tasklet_init(&host->card_tasklet,
- sdhci_tasklet_card, (unsigned long)host);
- tasklet_init(&host->finish_tasklet,
- sdhci_tasklet_finish, (unsigned long)host);
-
- setup_timer(&host->timer, sdhci_timeout_timer, (unsigned long)host);
-
- ret = request_irq(host->irq, sdhci_irq, IRQF_SHARED,
- host->slot_descr, host);
- if (ret)
- goto untasklet;
-
- sdhci_init(host);
-
-#ifdef CONFIG_MMC_DEBUG
- sdhci_dumpregs(host);
-#endif
-
- mmiowb();
-
- mmc_add_host(mmc);
-
- printk(KERN_INFO "%s: SDHCI at 0x%08lx irq %d %s\n", mmc_hostname(mmc),
- host->addr, host->irq,
- (host->flags & SDHCI_USE_DMA)?"DMA":"PIO");
-
- return 0;
-
-untasklet:
- tasklet_kill(&host->card_tasklet);
- tasklet_kill(&host->finish_tasklet);
-unmap:
- iounmap(host->ioaddr);
-release:
- pci_release_region(pdev, host->bar);
-free:
- mmc_free_host(mmc);
-
- return ret;
-}
-
-static void sdhci_remove_slot(struct pci_dev *pdev, int slot)
-{
- struct sdhci_chip *chip;
- struct mmc_host *mmc;
- struct sdhci_host *host;
-
- chip = pci_get_drvdata(pdev);
- host = chip->hosts[slot];
- mmc = host->mmc;
-
- chip->hosts[slot] = NULL;
-
- mmc_remove_host(mmc);
-
- sdhci_reset(host, SDHCI_RESET_ALL);
-
- free_irq(host->irq, host);
-
- del_timer_sync(&host->timer);
-
- tasklet_kill(&host->card_tasklet);
- tasklet_kill(&host->finish_tasklet);
-
- iounmap(host->ioaddr);
-
- pci_release_region(pdev, host->bar);
-
- mmc_free_host(mmc);
-}
-
-static int __devinit sdhci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- int ret, i;
- u8 slots, rev;
- struct sdhci_chip *chip;
-
- BUG_ON(pdev == NULL);
- BUG_ON(ent == NULL);
-
- pci_read_config_byte(pdev, PCI_CLASS_REVISION, &rev);
-
- printk(KERN_INFO DRIVER_NAME
- ": SDHCI controller found at %s [%04x:%04x] (rev %x)\n",
- pci_name(pdev), (int)pdev->vendor, (int)pdev->device,
- (int)rev);
-
- ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
- if (ret)
- return ret;
-
- slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
- DBG("found %d slot(s)\n", slots);
- if (slots == 0)
- return -ENODEV;
-
- ret = pci_enable_device(pdev);
- if (ret)
- return ret;
-
- chip = kzalloc(sizeof(struct sdhci_chip) +
- sizeof(struct sdhci_host*) * slots, GFP_KERNEL);
- if (!chip) {
- ret = -ENOMEM;
- goto err;
- }
-
- chip->pdev = pdev;
- chip->quirks = ent->driver_data;
-
- if (debug_quirks)
- chip->quirks = debug_quirks;
-
- chip->num_slots = slots;
- pci_set_drvdata(pdev, chip);
-
- for (i = 0;i < slots;i++) {
- ret = sdhci_probe_slot(pdev, i);
- if (ret) {
- for (i--;i >= 0;i--)
- sdhci_remove_slot(pdev, i);
- goto free;
- }
- }
-
- return 0;
-
-free:
- pci_set_drvdata(pdev, NULL);
- kfree(chip);
-
-err:
- pci_disable_device(pdev);
- return ret;
-}
-
-static void __devexit sdhci_remove(struct pci_dev *pdev)
-{
- int i;
- struct sdhci_chip *chip;
-
- chip = pci_get_drvdata(pdev);
-
- if (chip) {
- for (i = 0;i < chip->num_slots;i++)
- sdhci_remove_slot(pdev, i);
-
- pci_set_drvdata(pdev, NULL);
-
- kfree(chip);
- }
-
- pci_disable_device(pdev);
-}
-
-static struct pci_driver sdhci_driver = {
- .name = DRIVER_NAME,
- .id_table = pci_ids,
- .probe = sdhci_probe,
- .remove = __devexit_p(sdhci_remove),
- .suspend = sdhci_suspend,
- .resume = sdhci_resume,
-};
-
-/*****************************************************************************\
- * *
- * Driver init/exit *
- * *
-\*****************************************************************************/
-
-static int __init sdhci_drv_init(void)
-{
- printk(KERN_INFO DRIVER_NAME
- ": Secure Digital Host Controller Interface driver\n");
- printk(KERN_INFO DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
-
- return pci_register_driver(&sdhci_driver);
-}
-
-static void __exit sdhci_drv_exit(void)
-{
- DBG("Exiting\n");
-
- pci_unregister_driver(&sdhci_driver);
-}
-
-module_init(sdhci_drv_init);
-module_exit(sdhci_drv_exit);
-
-module_param(debug_nodma, uint, 0444);
-module_param(debug_forcedma, uint, 0444);
-module_param(debug_quirks, uint, 0444);
-
-MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
-MODULE_DESCRIPTION("Secure Digital Host Controller Interface driver");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM_DESC(debug_nodma, "Forcefully disable DMA transfers. (default 0)");
-MODULE_PARM_DESC(debug_forcedma, "Forcefully enable DMA transfers. (default 0)");
-MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");