/**
* mmc_reinit_host - reinit a host
* @host: mmc host
*/
int mmc_reinit_host(struct mmc_host *host)
{
int err = -1;
mmc_bus_get(host);
if (!host->bus_ops || !host->bus_ops->resume || host->bus_dead) {
mmc_bus_put(host);
goto out;
}
mmc_power_off(host);
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
err = host->bus_ops->resume(host);
if (err)
printk(KERN_WARNING "%s: error %d during reinit\n",
mmc_hostname(host), err);
mmc_bus_put(host);
out:
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
#ifdef CONFIG_HUAWEI_WIFI_SDCC
struct msmsdcc_host *sdcc_host = mmc_priv(host);
#endif
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
host->bus_ops->resume(host);
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
#ifdef CONFIG_HUAWEI_WIFI_SDCC
if (sdcc_host->pdev_id != ATH_WLAN_SLOT) {
mmc_detect_change(host, 1);
}
#endif
return 0;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
host->bus_ops->resume(host);
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return 0;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
printk(KERN_ERR "%s: mmc_resume_host ++\n", mmc_hostname(host));
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
printk(KERN_ERR "%s: mmc_resume_host **\n", mmc_hostname(host));
if (!host->card || host->card->type != MMC_TYPE_SDIO)
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
// remove sdcard linux patch
// following codes causes lock-up. bus_ops->remove function never returns.
#if 0
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
#endif
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
if (!host->card || host->card->type != MMC_TYPE_SDIO)
{
if(strncmp(mmc_hostname(host),"mmc1",strlen("mmc1")))
{
mmc_detect_change(host, 1);
}
}
is_mmc_resume = 0;
printk(KERN_ERR "%s: mmc_resume_host --\n", mmc_hostname(host));
return err;
}
/*
* Starting point for MMC card init.
*/
int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
{
int err;
BUG_ON(!host);
BUG_ON(!host->claimed);
mmc_attach_bus(host, &mmc_ops);
/*
* Sanity check the voltages that the card claims to
* support.
*/
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage of the card?
*/
if (!host->ocr) {
err = -EINVAL;
goto err;
}
/*
* Detect and init the card.
*/
err = mmc_init_card(host, host->ocr, NULL);
if (err != MMC_ERR_NONE)
goto err;
mmc_release_host(host);
err = mmc_add_card(host->card);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_remove_card(host->card);
host->card = NULL;
mmc_claim_host(host);
err:
mmc_detach_bus(host);
mmc_release_host(host);
printk(KERN_ERR "%s: error %d whilst initialising MMC card\n",
mmc_hostname(host), err);
return 0;
}
/*
* Resume callback from host.
*
* This function tries to determine if the same card is still present
* and, if so, restore all state to it.
*/
static int mmc_sd_resume(struct mmc_host *host)
{
//20110922 [email protected] blocking SDcard re-init[Start]
#if 1
return 0;
#else
int err;
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
BUG_ON(!host);
BUG_ON(!host->card);
mmc_claim_host(host);
#ifdef CONFIG_MMC_PARANOID_SD_INIT
retries = 5;
while (retries) {
err = mmc_sd_init_card(host, host->ocr, host->card);
if (err) {
// re-initialize the SD card power to re-establish on resume
#ifdef CONFIG_LGE_MMC_WORKAROUND
if (!strcmp(mmc_hostname(host), "mmc2"))
{
printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d), power off\n",
mmc_hostname(host), err);
mmc_power_off(host);
}
#endif
printk(KERN_ERR "%s: Re-init card rc = %d (retries = %d)\n",
mmc_hostname(host), err, retries);
#ifdef CONFIG_LGE_MMC_WORKAROUND
if (!strcmp(mmc_hostname(host), "mmc2"))
{
printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d), power up again\n",
mmc_hostname(host), err);
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
}
#endif
mdelay(5);
retries--;
continue;
}
break;
}
#else
err = mmc_sd_init_card(host, host->ocr, host->card);
#endif
mmc_release_host(host);
return err;
#endif
//20110922 [email protected] blocking SDcard re-init[End]
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
#ifdef CONFIG_HUAWEI_WIFI_SDCC
struct msmsdcc_host *sdcc_host = mmc_priv(host);
#endif
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
#ifdef CONFIG_HUAWEI_WIFI_SDCC
if (sdcc_host->pdev_id != ATH_WLAN_SLOT) {
#endif
mmc_detect_change(host, 1);
#ifdef CONFIG_HUAWEI_WIFI_SDCC
}
#endif
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!mmc_card_keep_power(host)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
/*
* Tell runtime PM core we just powered up the card,
* since it still believes the card is powered off.
* Note that currently runtime PM is only enabled
* for SDIO cards that are MMC_CAP_POWER_OFF_CARD
*/
if (mmc_card_sdio(host->card) &&
(host->caps & MMC_CAP_POWER_OFF_CARD)) {
pm_runtime_disable(&host->card->dev);
pm_runtime_set_active(&host->card->dev);
pm_runtime_enable(&host->card->dev);
}
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
/* clear flag */
host->pm_flags &= ~MMC_PM_KEEP_POWER;
mmc_bus_put(host);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!host->card || host->card->type != MMC_TYPE_SDIO)
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
#if 0 /* FIXME - following codes causes lock-up while sd card is removed in sleep */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
#endif
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
if (!host->card || host->card->type != MMC_TYPE_SDIO)
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
#ifdef CONFIG_ATH_WIFI
if (!host->suspend_keep_power) {
#endif
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
#ifdef CONFIG_ATH_WIFI
}
#endif
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
#if defined(CONFIG_ATH_WIFI) || defined(CONFIG_BCM_WIFI)
if (host->index == ATH_WIFI_SDCC_INDEX) {
pr_info("%s: mmc_resume_host in wifi slot skip cmd7\n", mmc_hostname(host));
return err;
}
#endif
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
#ifdef CONFIG_MMC_BLOCK_DEFERRED_RESUME
if (host->deferred_resume) {
host->need_resume = 1;
mmc_bus_put(host);
return 0;
}
#endif
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
struct mmc_card *card = host->card;
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
/* restore mmc_card because resume() clears host->card
when error occured */
host->card = card;
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
#if 1 /* ATHENV */
if (!host->card || host->card->type != MMC_TYPE_SDIO)
#endif /* ATHENV */
#if 1//PMMC
;
#else//ORG
mmc_detect_change(host, 2);
#endif//PMMC
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
DBG("[%s] s\n",__func__);
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
DBG("[%s] e1\n",__func__);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (0) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_release_host(host);
/* no need to bother upper layers */
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, HZ*3);
DBG("[%s] e2\n",__func__);
return err;
}
/*
* Resume callback from host.
*
* This function tries to determine if the same card is still present
* and, if so, restore all state to it.
*/
static int mmc_sd_resume(struct mmc_host *host)
{
int err;
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
BUG_ON(!host);
BUG_ON(!host->card);
mmc_claim_host(host);
#ifdef CONFIG_MMC_PARANOID_SD_INIT
retries = 5;
while (retries) {
err = mmc_sd_init_card(host, host->ocr, host->card);
if (err) {
// re-initialize the SD card power to re-establish on resume
#if 1//def CONFIG_LGE_MMC_WORKAROUND//LGE_CHANGES
mmc_power_off(host);
#endif
printk(KERN_ERR "%s: Re-init card rc = %d (retries = %d)\n",
mmc_hostname(host), err, retries);
#if 1//def CONFIG_LGE_MMC_WORKAROUND//LGE_CHANGES
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
#endif
mdelay(5);
retries--;
continue;
}
break;
}
#else
err = mmc_sd_init_card(host, host->ocr, host->card);
#endif
mmc_release_host(host);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
return err;
}
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER))
{
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
if(!strncmp(mmc_hostname(host),"mmc1",4))
{
memcpy(&host->ios,&ios_backup,sizeof(struct mmc_ios));
mmc_set_ios(host);
printk("\n(IOS restore)\n%s: clock %uHz busmode %u powermode %u cs %u Vdd %u width %u timing %u\n",mmc_hostname(host), ios_backup.clock, ios_backup.bus_mode,ios_backup.power_mode, ios_backup.chip_select, ios_backup.vdd,ios_backup.bus_width, ios_backup.timing);
}
mmc_bus_put(host);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
/* FIH, SimonSSChang, 2010/02/26 { */
/* Avoid resume will hang here when wifi has trun on */
#ifdef CONFIG_FIH_FXX
mmc_detect_change(host, 0);
#else
mmc_detect_change(host, 1);
#endif
/* } FIH, SimonSSChang, 2010/02/26 */
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
#if 0 // kimhyuns remove to recognize card
// for issue fix for ecim G0100145817
if(host->bus_dead )
#else
if((host->bus_dead) && (host->index!=0))
#endif
{
printk("No Suspend resume in case of bus-dead if init failed -- %s \r\n",__FUNCTION__);
return 0;
}
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
if ( host->card && mmc_card_sdio(host->card)){ //ijihyun.jung -Sec VinsQ
printk("mmc%d:mmc_resume_host: skip mmc_power_up()\n", host->index);
} else {
mmc_power_up(host);
}
mmc_select_voltage(host, host->ocr);//cyj_dc23 -kernel 협의
BUG_ON(!host->bus_ops->resume);
host->bus_ops->resume(host);
}
mmc_bus_put(host);
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
if ( host->card && mmc_card_sdio(host->card)) { //ijihyun.jung -Sec VinsQ
printk("mmc%d:mmc_resume_host: skip mmc_detect_change()\n", host->index);
}
else{
printk("mmc%d:mmc_resume_host: excute mmc_detect_change()\n", host->index);
mmc_detect_change(host, 1);
}
return 0;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (host->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
/* ATHENV */
if (host->index == ATH_WIFI_SDCC_INDEX) {
pr_info("%s: mmc_resume_host in wifi slot skip cmd7\n", mmc_hostname(host));
return err;
}
/* ATHENV */
/*
* We add a slight delay here so that resume can progress
* in parallel.
*/
mmc_detect_change(host, 1);
return err;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
int err = 0;
mmc_bus_get(host);
if (mmc_bus_manual_resume(host)) {
host->bus_resume_flags |= MMC_BUSRESUME_NEEDS_RESUME;
mmc_bus_put(host);
return 0;
}
if (host->bus_ops && !host->bus_dead) {
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
struct mmc_ios *ios = &host->ios;
//temporary debug code
pr_debug("%s: clock %uHz busmode %u powermode %u cs %u Vdd %u "
"width %u timing %u\n",
mmc_hostname(host), ios->clock, ios->bus_mode,
ios->power_mode, ios->chip_select, ios->vdd,
ios->bus_width, ios->timing);
printk(KERN_WARNING "%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
}
}
mmc_bus_put(host);
return err;
}
/*
* Starting point for SD card init.
*/
int mmc_attach_sd(struct mmc_host *host)
{
int err;
u32 ocr;
BUG_ON(!host);
WARN_ON(!host->claimed);
err = mmc_send_app_op_cond(host, 0, &ocr);
if (err)
return err;
mmc_sd_attach_bus_ops(host);
if (host->ocr_avail_sd)
host->ocr_avail = host->ocr_avail_sd;
/*
* We need to get OCR a different way for SPI.
*/
if (mmc_host_is_spi(host)) {
mmc_go_idle(host);
err = mmc_spi_read_ocr(host, 0, &ocr);
if (err)
goto err;
}
/*
* Sanity check the voltages that the card claims to
* support.
*/
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
if ((ocr & MMC_VDD_165_195) &&
!(host->ocr_avail_sd & MMC_VDD_165_195)) {
printk(KERN_WARNING "%s: SD card claims to support the "
"incompletely defined 'low voltage range'. This "
"will be ignored.\n", mmc_hostname(host));
ocr &= ~MMC_VDD_165_195;
}
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage(s) of the card(s)?
*/
if (!host->ocr) {
err = -EINVAL;
goto err;
}
/*
* Detect and init the card.
*/
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err)
goto err;
mmc_release_host(host);
err = mmc_add_card(host->card);
mmc_claim_host(host);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_release_host(host);
mmc_remove_card(host->card);
host->card = NULL;
mmc_claim_host(host);
err:
mmc_detach_bus(host);
printk(KERN_ERR "%s: error %d whilst initialising SD card\n",
mmc_hostname(host), err);
return err;
}
/*
* Starting point for MMC card init.
*/
int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
{
struct mmc_card *card;
int err;
u32 cid[4];
unsigned int max_dtr;
BUG_ON(!host);
BUG_ON(!host->claimed);
mmc_attach_bus(host, &mmc_ops);
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage of the card?
*/
if (!host->ocr)
goto err;
/*
* Since we're changing the OCR value, we seem to
* need to tell some cards to go back to the idle
* state. We wait 1ms to give cards time to
* respond.
*/
mmc_go_idle(host);
/* The extra bit indicates that we support high capacity */
mmc_send_op_cond(host, host->ocr | (1 << 30), NULL);
/*
* Fetch CID from card.
*/
err = mmc_all_send_cid(host, cid);
if (err != MMC_ERR_NONE)
goto err;
/*
* Allocate card structure.
*/
card = mmc_alloc_card(host);
if (IS_ERR(card))
goto err;
card->type = MMC_TYPE_MMC;
card->rca = 1;
memcpy(card->raw_cid, cid, sizeof(card->raw_cid));
/*
* Set card RCA.
*/
err = mmc_set_relative_addr(card);
if (err != MMC_ERR_NONE)
goto free_card;
mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
/*
* Fetch CSD from card.
*/
err = mmc_send_csd(card, card->raw_csd);
if (err != MMC_ERR_NONE)
goto free_card;
mmc_decode_csd(card);
mmc_decode_cid(card);
/*
* Fetch and process extened CSD.
* This will switch into high-speed and wide bus modes,
* as available.
*/
err = mmc_select_card(card);
if (err != MMC_ERR_NONE)
goto free_card;
err = mmc_process_ext_csd(card);
if (err != MMC_ERR_NONE)
goto free_card;
/*
* Compute bus speed.
*/
max_dtr = (unsigned int)-1;
if (mmc_card_highspeed(card)) {
if (max_dtr > card->ext_csd.hs_max_dtr)
max_dtr = card->ext_csd.hs_max_dtr;
} else if (max_dtr > card->csd.max_dtr) {
max_dtr = card->csd.max_dtr;
}
mmc_set_clock(host, max_dtr);
host->card = card;
mmc_release_host(host);
err = mmc_register_card(card);
if (err)
goto reclaim_host;
return 0;
reclaim_host:
mmc_claim_host(host);
free_card:
mmc_remove_card(card);
host->card = NULL;
err:
mmc_detach_bus(host);
mmc_release_host(host);
return 0;
}
/*
* Starting point for MMC card init.
*/
int mmc_attach_mmc(struct mmc_host *host)
{
int err;
u32 ocr;
BUG_ON(!host);
WARN_ON(!host->claimed);
err = mmc_send_op_cond(host, 0, &ocr);
if (err)
return err;
mmc_attach_bus_ops(host);
/*
* We need to get OCR a different way for SPI.
*/
if (mmc_host_is_spi(host)) {
err = mmc_spi_read_ocr(host, 1, &ocr);
if (err)
goto err;
}
/*
* Sanity check the voltages that the card claims to
* support.
*/
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage of the card?
*/
if (!host->ocr) {
err = -EINVAL;
goto err;
}
/*
* Detect and init the card.
*/
err = mmc_init_card(host, host->ocr, NULL);
if (err)
goto err;
mmc_release_host(host);
err = mmc_add_card(host->card);
mmc_claim_host(host);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_release_host(host);
mmc_remove_card(host->card);
mmc_claim_host(host);
host->card = NULL;
err:
mmc_detach_bus(host);
printk(KERN_ERR "%s: error %d whilst initialising MMC card\n",
mmc_hostname(host), err);
return err;
}
int mmc_attach_sd(struct mmc_host *host, u32 ocr)
{
int err;
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
BUG_ON(!host);
WARN_ON(!host->claimed);
mmc_sd_attach_bus_ops(host);
if (mmc_host_is_spi(host)) {
mmc_go_idle(host);
err = mmc_spi_read_ocr(host, 0, &ocr);
if (err)
goto err;
}
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
if (ocr & MMC_VDD_165_195) {
printk(KERN_WARNING "%s: SD card claims to support the "
"incompletely defined 'low voltage range'. This "
"will be ignored.\n", mmc_hostname(host));
ocr &= ~MMC_VDD_165_195;
}
host->ocr = mmc_select_voltage(host, ocr);
if (!host->ocr) {
err = -EINVAL;
goto err;
}
#ifdef CONFIG_MMC_PARANOID_SD_INIT
retries = 5;
while (retries) {
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err) {
retries--;
continue;
}
break;
}
if (!retries) {
printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d)\n",
mmc_hostname(host), err);
goto err;
}
#else
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err)
goto err;
#endif
mmc_release_host(host);
err = mmc_add_card(host->card);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_remove_card(host->card);
host->card = NULL;
mmc_claim_host(host);
err:
mmc_detach_bus(host);
mmc_release_host(host);
printk(KERN_ERR "%s: error %d whilst initialising SD card\n",
mmc_hostname(host), err);
return err;
}
/*
* Starting point for SD card init.
*/
int mmc_attach_sd(struct mmc_host *host, u32 ocr)
{
int err;
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
BUG_ON(!host);
WARN_ON(!host->claimed);
mmc_sd_attach_bus_ops(host);
/*
* We need to get OCR a different way for SPI.
*/
if (mmc_host_is_spi(host)) {
mmc_go_idle(host);
err = mmc_spi_read_ocr(host, 0, &ocr);
if (err)
goto err;
}
/*
* Sanity check the voltages that the card claims to
* support.
*/
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
if (ocr & MMC_VDD_165_195) {
printk(KERN_WARNING "%s: SD card claims to support the "
"incompletely defined 'low voltage range'. This "
"will be ignored.\n", mmc_hostname(host));
ocr &= ~MMC_VDD_165_195;
}
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage(s) of the card(s)?
*/
if (!host->ocr) {
err = -EINVAL;
goto err;
}
/*
* Detect and init the card.
*/
#ifdef CONFIG_MMC_PARANOID_SD_INIT
retries = 5;
while (retries) {
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err)
{
#if 1
if (!strcmp(mmc_hostname(host), "mmc2"))
{
g_sd_power_dircect_ctrl = 1;
mmc_power_off(host);
mdelay(200);
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
mdelay(10);
g_sd_power_dircect_ctrl = 0;
printk("\n(SD initialization) retry count=%d\n",retries);
}
#endif
retries--;
continue;
}
break;
}
if (!retries) {
printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d)\n",
mmc_hostname(host), err);
goto err;
}
#else
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err)
goto err;
#endif
mmc_release_host(host);
err = mmc_add_card(host->card);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_remove_card(host->card);
host->card = NULL;
mmc_claim_host(host);
err:
mmc_detach_bus(host);
mmc_release_host(host);
printk(KERN_ERR "%s: error %d whilst initialising SD card\n",
mmc_hostname(host), err);
return err;
}
/*
* Starting point for SD card init.
*/
int mmc_attach_sd(struct mmc_host *host)
{
int err;
u32 ocr;
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
BUG_ON(!host);
WARN_ON(!host->claimed);
/* Make sure we are at 3.3V signalling voltage */
err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330);
if (err)
return err;
err = mmc_send_app_op_cond(host, 0, &ocr);
if (err)
return err;
mmc_sd_attach_bus_ops(host);
if (host->ocr_avail_sd)
host->ocr_avail = host->ocr_avail_sd;
/*
* We need to get OCR a different way for SPI.
*/
if (mmc_host_is_spi(host)) {
mmc_go_idle(host);
err = mmc_spi_read_ocr(host, 0, &ocr);
if (err)
goto err;
}
/*
* Sanity check the voltages that the card claims to
* support.
*/
if (ocr & 0x7F) {
printk(KERN_WARNING "%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
}
if ((ocr & MMC_VDD_165_195) &&
!(host->ocr_avail_sd & MMC_VDD_165_195)) {
printk(KERN_WARNING "%s: SD card claims to support the "
"incompletely defined 'low voltage range'. This "
"will be ignored.\n", mmc_hostname(host));
ocr &= ~MMC_VDD_165_195;
}
host->ocr = mmc_select_voltage(host, ocr);
/*
* Can we support the voltage(s) of the card(s)?
*/
if (!host->ocr) {
err = -EINVAL;
goto err;
}
/*
* Detect and init the card.
*/
#ifdef CONFIG_MMC_PARANOID_SD_INIT
retries = 5;
while (retries) {
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err) {
retries--;
continue;
}
break;
}
if (!retries) {
printk(KERN_ERR "%s: mmc_sd_init_card() failure (err = %d)\n",
mmc_hostname(host), err);
goto err;
}
#else
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err)
goto err;
#endif
mmc_release_host(host);
err = mmc_add_card(host->card);
mmc_claim_host(host);
if (err)
goto remove_card;
return 0;
remove_card:
mmc_release_host(host);
mmc_remove_card(host->card);
host->card = NULL;
mmc_claim_host(host);
err:
mmc_detach_bus(host);
printk(KERN_ERR "%s: error %d whilst initialising SD card\n",
mmc_hostname(host), err);
return err;
}
