forked from al177/esp8089
/
sdio_sif_esp.c
executable file
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/
sdio_sif_esp.c
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/*
* Copyright (c) 2010 -2013 Espressif System.
*
* sdio serial i/f driver
* - sdio device control routines
* - sync/async DMA/PIO read/write
*
*/
#ifdef ESP_USE_SDIO
#include <linux/mmc/card.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/core.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sd.h>
#include <linux/module.h>
#include <net/mac80211.h>
#include <linux/time.h>
#include <linux/pm.h>
#include "esp_pub.h"
#include "esp_sif.h"
#include "esp_sip.h"
#include "esp_debug.h"
#include "slc_host_register.h"
#include "esp_version.h"
#include "esp_ctrl.h"
#include "esp_file.h"
#ifdef USE_EXT_GPIO
#include "esp_ext.h"
#endif /* USE_EXT_GPIO */
static int /*__init*/ esp_sdio_init(void);
static void /*__exit*/ esp_sdio_exit(void);
#define ESP_DMA_IBUFSZ 2048
//unsigned int esp_msg_level = 0;
unsigned int esp_msg_level = ESP_DBG_ERROR | ESP_SHOW;
static struct semaphore esp_powerup_sem;
static enum esp_sdio_state sif_sdio_state;
struct esp_sdio_ctrl *sif_sctrl = NULL;
#ifdef ESP_ANDROID_LOGGER
bool log_off = false;
#endif /* ESP_ANDROID_LOGGER */
static int esdio_power_off(struct esp_sdio_ctrl *sctrl);
static int esdio_power_on(struct esp_sdio_ctrl *sctrl);
void sif_set_clock(struct sdio_func *func, int clk);
#include "sdio_stub.c"
void sif_lock_bus(struct esp_pub *epub)
{
EPUB_FUNC_CHECK(epub, _exit);
sdio_claim_host(EPUB_TO_FUNC(epub));
_exit:
return;
}
void sif_unlock_bus(struct esp_pub *epub)
{
EPUB_FUNC_CHECK(epub, _exit);
sdio_release_host(EPUB_TO_FUNC(epub));
_exit:
return;
}
static inline bool bad_buf(u8 * buf)
{
return ((unsigned long) buf & 0x3) || !virt_addr_valid(buf);
}
u8 sdio_io_readb(struct esp_pub *epub, int addr, int *res)
{
struct esp_sdio_ctrl *sctrl = NULL;
struct sdio_func *func = NULL;
sctrl = (struct esp_sdio_ctrl *)epub->sif;
func = sctrl->func;
if(func->num == 0)
return sdio_f0_readb(func, addr, res);
else
return sdio_readb(func, addr, res);
}
void sdio_io_writeb(struct esp_pub *epub, u8 value, int addr, int *res)
{
struct esp_sdio_ctrl *sctrl = NULL;
struct sdio_func *func = NULL;
sctrl = (struct esp_sdio_ctrl *)epub->sif;
func = sctrl->func;
if(func->num == 0)
sdio_f0_writeb(func, value, addr, res);
else
sdio_writeb(func, value, addr, res);
sif_platform_check_r1_ready(epub);
}
int sif_io_raw(struct esp_pub *epub, u32 addr, u8 *buf, u32 len, u32 flag)
{
int err = 0;
u8 *ibuf = NULL;
bool need_ibuf = false;
struct esp_sdio_ctrl *sctrl = NULL;
struct sdio_func *func = NULL;
if (epub == NULL || buf == NULL) {
ESSERT(0);
err = -EINVAL;
goto _exit;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
func = sctrl->func;
if (func == NULL) {
ESSERT(0);
err = -EINVAL;
goto _exit;
}
if (bad_buf(buf)) {
esp_dbg(ESP_DBG_TRACE, "%s dst 0x%08x, len %d badbuf\n", __func__, addr, len);
need_ibuf = true;
ibuf = sctrl->dma_buffer;
} else {
ibuf = buf;
}
if (flag & SIF_BLOCK_BASIS) {
/* round up for block data transcation */
}
if (flag & SIF_TO_DEVICE) {
if (need_ibuf)
memcpy(ibuf, buf, len);
if (flag & SIF_FIXED_ADDR)
err = sdio_writesb(func, addr, ibuf, len);
else if (flag & SIF_INC_ADDR) {
err = sdio_memcpy_toio(func, addr, ibuf, len);
}
sif_platform_check_r1_ready(epub);
} else if (flag & SIF_FROM_DEVICE) {
if (flag & SIF_FIXED_ADDR)
err = sdio_readsb(func, ibuf, addr, len);
else if (flag & SIF_INC_ADDR) {
err = sdio_memcpy_fromio(func, ibuf, addr, len);
}
if (!err && need_ibuf)
memcpy(buf, ibuf, len);
}
_exit:
return err;
}
int sif_io_sync(struct esp_pub *epub, u32 addr, u8 *buf, u32 len, u32 flag)
{
int err = 0;
u8 * ibuf = NULL;
bool need_ibuf = false;
struct esp_sdio_ctrl *sctrl = NULL;
struct sdio_func *func = NULL;
if (epub == NULL || buf == NULL) {
ESSERT(0);
err = -EINVAL;
goto _exit;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
func = sctrl->func;
if (func == NULL) {
ESSERT(0);
err = -EINVAL;
goto _exit;
}
if (bad_buf(buf)) {
esp_dbg(ESP_DBG_TRACE, "%s dst 0x%08x, len %d badbuf\n", __func__, addr, len);
need_ibuf = true;
ibuf = sctrl->dma_buffer;
} else {
ibuf = buf;
}
if (flag & SIF_BLOCK_BASIS) {
/* round up for block data transcation */
}
if (flag & SIF_TO_DEVICE) {
esp_dbg(ESP_DBG_TRACE, "%s to addr 0x%08x, len %d \n", __func__, addr, len);
if (need_ibuf)
memcpy(ibuf, buf, len);
sdio_claim_host(func);
if (flag & SIF_FIXED_ADDR)
err = sdio_writesb(func, addr, ibuf, len);
else if (flag & SIF_INC_ADDR) {
err = sdio_memcpy_toio(func, addr, ibuf, len);
}
sif_platform_check_r1_ready(epub);
sdio_release_host(func);
} else if (flag & SIF_FROM_DEVICE) {
esp_dbg(ESP_DBG_TRACE, "%s from addr 0x%08x, len %d \n", __func__, addr, len);
sdio_claim_host(func);
if (flag & SIF_FIXED_ADDR)
err = sdio_readsb(func, ibuf, addr, len);
else if (flag & SIF_INC_ADDR) {
err = sdio_memcpy_fromio(func, ibuf, addr, len);
}
sdio_release_host(func);
if (!err && need_ibuf)
memcpy(buf, ibuf, len);
}
_exit:
return err;
}
int sif_lldesc_read_sync(struct esp_pub *epub, u8 *buf, u32 len)
{
struct esp_sdio_ctrl *sctrl = NULL;
u32 read_len;
if (epub == NULL || buf == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
switch(sctrl->target_id) {
case 0x100:
read_len = len;
break;
case 0x600:
read_len = roundup(len, sctrl->slc_blk_sz);
break;
default:
read_len = len;
break;
}
return sif_io_sync((epub), (sctrl->slc_window_end_addr - 2 - (len)), (buf), (read_len), SIF_FROM_DEVICE | SIF_BYTE_BASIS | SIF_INC_ADDR);
}
int sif_lldesc_write_sync(struct esp_pub *epub, u8 *buf, u32 len)
{
struct esp_sdio_ctrl *sctrl = NULL;
u32 write_len;
if (epub == NULL || buf == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
switch(sctrl->target_id) {
case 0x100:
write_len = len;
break;
case 0x600:
write_len = roundup(len, sctrl->slc_blk_sz);
break;
default:
write_len = len;
break;
}
return sif_io_sync((epub), (sctrl->slc_window_end_addr - (len)), (buf), (write_len), SIF_TO_DEVICE | SIF_BYTE_BASIS | SIF_INC_ADDR);
}
int sif_lldesc_read_raw(struct esp_pub *epub, u8 *buf, u32 len, bool noround)
{
struct esp_sdio_ctrl *sctrl = NULL;
u32 read_len;
if (epub == NULL || buf == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
switch(sctrl->target_id) {
case 0x100:
read_len = len;
break;
case 0x600:
if(!noround)
read_len = roundup(len, sctrl->slc_blk_sz);
else
read_len = len;
break;
default:
read_len = len;
break;
}
return sif_io_raw((epub), (sctrl->slc_window_end_addr - 2 - (len)), (buf), (read_len), SIF_FROM_DEVICE | SIF_BYTE_BASIS | SIF_INC_ADDR);
}
int sif_lldesc_write_raw(struct esp_pub *epub, u8 *buf, u32 len)
{
struct esp_sdio_ctrl *sctrl = NULL;
u32 write_len;
if (epub == NULL || buf == NULL) {
ESSERT(0);
return -EINVAL;
}
sctrl = (struct esp_sdio_ctrl *)epub->sif;
switch(sctrl->target_id) {
case 0x100:
write_len = len;
break;
case 0x600:
write_len = roundup(len, sctrl->slc_blk_sz);
break;
default:
write_len = len;
break;
}
return sif_io_raw((epub), (sctrl->slc_window_end_addr - (len)), (buf), (write_len), SIF_TO_DEVICE | SIF_BYTE_BASIS | SIF_INC_ADDR);
}
#define MANUFACTURER_ID_EAGLE_BASE 0x1110
#define MANUFACTURER_ID_EAGLE_BASE_MASK 0xFF00
#define MANUFACTURER_CODE 0x6666
static const struct sdio_device_id esp_sdio_devices[] = {
{SDIO_DEVICE(MANUFACTURER_CODE, (MANUFACTURER_ID_EAGLE_BASE | 0x1))},
{},
};
static int esdio_power_on(struct esp_sdio_ctrl *sctrl)
{
int err = 0;
if (sctrl->off == false)
return err;
sdio_claim_host(sctrl->func);
err = sdio_enable_func(sctrl->func);
if (err) {
esp_dbg(ESP_DBG_ERROR, "Unable to enable sdio func: %d\n", err);
sdio_release_host(sctrl->func);
return err;
}
sdio_release_host(sctrl->func);
/* ensure device is up */
msleep(5);
sctrl->off = false;
return err;
}
static int esdio_power_off(struct esp_sdio_ctrl *sctrl)
{
int err;
if (sctrl->off)
return 0;
sdio_claim_host(sctrl->func);
err = sdio_disable_func(sctrl->func);
sdio_release_host(sctrl->func);
if (err)
return err;
sctrl->off = true;
return err;
}
void sif_enable_irq(struct esp_pub *epub)
{
int err;
struct esp_sdio_ctrl *sctrl = NULL;
sctrl = (struct esp_sdio_ctrl *)epub->sif;
sdio_claim_host(sctrl->func);
err = sdio_claim_irq(sctrl->func, sif_dsr);
if (err)
esp_dbg(ESP_DBG_ERROR, "sif %s failed\n", __func__);
atomic_set(&epub->sip->state, SIP_BOOT);
atomic_set(&sctrl->irq_installed, 1);
sdio_release_host(sctrl->func);
}
void sif_disable_irq(struct esp_pub *epub)
{
int err;
struct esp_sdio_ctrl *sctrl = (struct esp_sdio_ctrl *)epub->sif;
int i = 0;
if (atomic_read(&sctrl->irq_installed) == 0)
return;
sdio_claim_host(sctrl->func);
while (atomic_read(&sctrl->irq_handling)) {
sdio_release_host(sctrl->func);
schedule_timeout(HZ / 100);
sdio_claim_host(sctrl->func);
if (i++ >= 400) {
esp_dbg(ESP_DBG_ERROR, "%s force to stop irq\n", __func__);
break;
}
}
err = sdio_release_irq(sctrl->func);
if (err) {
esp_dbg(ESP_DBG_ERROR, "%s release irq failed\n", __func__);
}
atomic_set(&sctrl->irq_installed, 0);
sdio_release_host(sctrl->func);
}
void sif_set_clock(struct sdio_func *func, int clk)
{
struct mmc_host *host = NULL;
struct mmc_card *card = NULL;
card = func->card;
host = card->host;
sdio_claim_host(func);
//currently only set clock
host->ios.clock = clk * 1000000;
esp_dbg(ESP_SHOW, "%s clock is %u\n", __func__, host->ios.clock);
if (host->ios.clock > host->f_max) {
host->ios.clock = host->f_max;
}
host->ops->set_ios(host, &host->ios);
mdelay(2);
sdio_release_host(func);
}
static int esp_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id);
static void esp_sdio_remove(struct sdio_func *func);
static int esp_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
{
int err = 0;
struct esp_pub *epub;
struct esp_sdio_ctrl *sctrl;
esp_dbg(ESP_DBG_TRACE,
"sdio_func_num: 0x%X, vendor id: 0x%X, dev id: 0x%X, block size: 0x%X/0x%X\n",
func->num, func->vendor, func->device, func->max_blksize,
func->cur_blksize);
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT){
sctrl = kzalloc(sizeof(struct esp_sdio_ctrl), GFP_KERNEL);
if (sctrl == NULL) {
return -ENOMEM;
}
/* temp buffer reserved for un-dma-able request */
sctrl->dma_buffer = kzalloc(ESP_DMA_IBUFSZ, GFP_KERNEL);
if (sctrl->dma_buffer == NULL) {
err = -ENOMEM;
goto _err_last;
}
sif_sctrl = sctrl;
sctrl->slc_blk_sz = SIF_SLC_BLOCK_SIZE;
epub = esp_pub_alloc_mac80211(&func->dev);
if (epub == NULL) {
esp_dbg(ESP_DBG_ERROR, "no mem for epub \n");
err = -ENOMEM;
goto _err_dma;
}
epub->sif = (void *)sctrl;
sctrl->epub = epub;
#ifdef USE_EXT_GPIO
if (sif_get_ate_config() == 0) {
err = ext_gpio_init(epub);
if (err) {
esp_dbg(ESP_DBG_ERROR, "ext_irq_work_init failed %d\n", err);
goto _err_epub;
}
}
#endif
} else {
sctrl = sif_sctrl;
sif_sctrl = NULL;
epub = sctrl->epub;
SET_IEEE80211_DEV(epub->hw, &func->dev);
epub->dev = &func->dev;
}
epub->sdio_state = sif_sdio_state;
sctrl->func = func;
sdio_set_drvdata(func, sctrl);
sctrl->id = id;
sctrl->off = true;
/* give us some time to enable, in ms */
func->enable_timeout = 100;
err = esdio_power_on(sctrl);
esp_dbg(ESP_DBG_TRACE, " %s >> power_on err %d \n", __func__, err);
if (err){
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT)
goto _err_ext_gpio;
else
goto _err_second_init;
}
check_target_id(epub);
sdio_claim_host(func);
err = sdio_set_block_size(func, sctrl->slc_blk_sz);
if (err) {
esp_dbg(ESP_DBG_ERROR, "Set sdio block size %d failed: %d)\n",
sctrl->slc_blk_sz, err);
sdio_release_host(func);
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT)
goto _err_off;
else
goto _err_second_init;
}
sdio_release_host(func);
#ifdef LOWER_CLK
/* fix clock for dongle */
sif_set_clock(func, 23);
#endif //LOWER_CLK
err = esp_pub_init_all(epub);
if (err) {
esp_dbg(ESP_DBG_ERROR, "esp_init_all failed: %d\n", err);
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT){
err = 0;
goto _err_first_init;
}
if(sif_sdio_state == ESP_SDIO_STATE_SECOND_INIT)
goto _err_second_init;
}
esp_dbg(ESP_DBG_TRACE, " %s return %d\n", __func__, err);
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT){
esp_dbg(ESP_DBG_ERROR, "first normal exit\n");
sif_sdio_state = ESP_SDIO_STATE_FIRST_NORMAL_EXIT;
up(&esp_powerup_sem);
}
return err;
_err_off:
esdio_power_off(sctrl);
_err_ext_gpio:
#ifdef USE_EXT_GPIO
if (sif_get_ate_config() == 0)
ext_gpio_deinit();
_err_epub:
#endif
esp_pub_dealloc_mac80211(epub);
_err_dma:
kfree(sctrl->dma_buffer);
_err_last:
kfree(sctrl);
_err_first_init:
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_INIT){
esp_dbg(ESP_DBG_ERROR, "first error exit\n");
sif_sdio_state = ESP_SDIO_STATE_FIRST_ERROR_EXIT;
up(&esp_powerup_sem);
}
return err;
_err_second_init:
sif_sdio_state = ESP_SDIO_STATE_SECOND_ERROR_EXIT;
esp_sdio_remove(func);
return err;
}
static void esp_sdio_remove(struct sdio_func *func)
{
struct esp_sdio_ctrl *sctrl = NULL;
esp_dbg(ESP_SHOW, "%s enter\n", __func__);
sctrl = sdio_get_drvdata(func);
if (sctrl == NULL) {
esp_dbg(ESP_DBG_ERROR, "%s no sctrl\n", __func__);
return;
}
do {
if (sctrl->epub == NULL) {
esp_dbg(ESP_DBG_ERROR, "%s epub null\n", __func__);
break;
}
sctrl->epub->sdio_state = sif_sdio_state;
if(sif_sdio_state != ESP_SDIO_STATE_FIRST_NORMAL_EXIT){
if (sctrl->epub->sip) {
sip_detach(sctrl->epub->sip);
sctrl->epub->sip = NULL;
esp_dbg(ESP_DBG_TRACE, "%s sip detached \n", __func__);
}
#ifdef USE_EXT_GPIO
if (sif_get_ate_config() == 0)
ext_gpio_deinit();
#endif
} else {
//sif_disable_target_interrupt(sctrl->epub);
atomic_set(&sctrl->epub->sip->state, SIP_STOP);
sif_disable_irq(sctrl->epub);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0))
esdio_power_off(sctrl);
esp_dbg(ESP_DBG_TRACE, "%s power off \n", __func__);
#endif /* kernel < 3.3.0 */
#ifdef TEST_MODE
test_exit_netlink();
#endif /* TEST_MODE */
if(sif_sdio_state != ESP_SDIO_STATE_FIRST_NORMAL_EXIT){
esp_pub_dealloc_mac80211(sctrl->epub);
esp_dbg(ESP_DBG_TRACE, "%s dealloc mac80211 \n", __func__);
if (sctrl->dma_buffer) {
kfree(sctrl->dma_buffer);
sctrl->dma_buffer = NULL;
esp_dbg(ESP_DBG_TRACE, "%s free dma_buffer \n", __func__);
}
kfree(sctrl);
}
} while (0);
sdio_set_drvdata(func,NULL);
esp_dbg(ESP_DBG_TRACE, "eagle sdio remove complete\n");
}
MODULE_DEVICE_TABLE(sdio, esp_sdio_devices);
static int esp_sdio_suspend(struct device *dev)
{
//#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
struct sdio_func *func = dev_to_sdio_func(dev);
#else
struct sdio_func *func = container_of(dev, struct sdio_func, dev);
#endif
struct esp_sdio_ctrl *sctrl = sdio_get_drvdata(func);
struct esp_pub *epub = sctrl->epub;
printk("%s", __func__);
#if 0
sip_send_suspend_config(epub, 1);
#endif
atomic_set(&epub->ps.state, ESP_PM_ON);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 34))
do{
u32 sdio_flags = 0;
int ret = 0;
sdio_flags = sdio_get_host_pm_caps(func);
if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
printk("%s can't keep power while host is suspended\n", __func__);
}
/* keep power while host suspended */
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
if (ret) {
printk("%s error while trying to keep power\n", __func__);
}
}while(0);
#endif
return 0;
}
static int esp_sdio_resume(struct device *dev)
{
esp_dbg(ESP_DBG_ERROR, "%s", __func__);
return 0;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
static const struct dev_pm_ops esp_sdio_pm_ops = {
.suspend= esp_sdio_suspend,
.resume= esp_sdio_resume,
};
#else
static struct pm_ops esp_sdio_pm_ops = {
.suspend= esp_sdio_suspend,
.resume= esp_sdio_resume,
};
#endif
static struct sdio_driver esp_sdio_driver = {
.name = "eagle_sdio",
.id_table = esp_sdio_devices,
.probe = esp_sdio_probe,
.remove = esp_sdio_remove,
.drv = { .pm = &esp_sdio_pm_ops, },
};
static int esp_sdio_dummy_probe(struct sdio_func *func, const struct sdio_device_id *id)
{
esp_dbg(ESP_DBG_ERROR, "%s enter\n", __func__);
up(&esp_powerup_sem);
return 0;
}
static void esp_sdio_dummy_remove(struct sdio_func *func)
{
return;
}
static struct sdio_driver esp_sdio_dummy_driver = {
.name = "eagle_sdio_dummy",
.id_table = esp_sdio_devices,
.probe = esp_sdio_dummy_probe,
.remove = esp_sdio_dummy_remove,
};
static int /*__init*/ esp_sdio_init(void)
{
#define ESP_WAIT_UP_TIME_MS 11000
int err;
u64 ver;
int retry = 3;
bool powerup = false;
int edf_ret = 0;
esp_dbg(ESP_DBG_TRACE, "%s \n", __func__);
#ifdef DRIVER_VER
ver = DRIVER_VER;
esp_dbg(ESP_SHOW, "\n***** EAGLE DRIVER VER:%llx*****\n\n", ver);
#endif
edf_ret = esp_debugfs_init();
request_init_conf();
esp_wakelock_init();
esp_wake_lock();
do {
sema_init(&esp_powerup_sem, 0);
sif_platform_target_poweron();
sif_platform_rescan_card(1);
err = sdio_register_driver(&esp_sdio_dummy_driver);
if (err) {
esp_dbg(ESP_DBG_ERROR, "eagle sdio driver registration failed, error code: %d\n", err);
goto _fail;
}
if (down_timeout(&esp_powerup_sem,
msecs_to_jiffies(ESP_WAIT_UP_TIME_MS)) == 0)
{
powerup = true;
msleep(200);
break;
}
esp_dbg(ESP_SHOW, "%s ------ RETRY ------ \n", __func__);
sif_record_retry_config();
sdio_unregister_driver(&esp_sdio_dummy_driver);
sif_platform_rescan_card(0);
sif_platform_target_poweroff();
} while (retry--);
if (!powerup) {
esp_dbg(ESP_DBG_ERROR, "eagle sdio can not power up!\n");
err = -ENODEV;
goto _fail;
}
esp_dbg(ESP_SHOW, "%s power up OK\n", __func__);
sdio_unregister_driver(&esp_sdio_dummy_driver);
sif_sdio_state = ESP_SDIO_STATE_FIRST_INIT;
sema_init(&esp_powerup_sem, 0);
sdio_register_driver(&esp_sdio_driver);
if ((down_timeout(&esp_powerup_sem,
msecs_to_jiffies(ESP_WAIT_UP_TIME_MS)) == 0 ) && sif_get_ate_config() == 0) {
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_NORMAL_EXIT){
sdio_unregister_driver(&esp_sdio_driver);
sif_platform_rescan_card(0);
msleep(100);
sif_platform_rescan_card(1);
sif_sdio_state = ESP_SDIO_STATE_SECOND_INIT;
sdio_register_driver(&esp_sdio_driver);
}
}
esp_register_early_suspend();
esp_wake_unlock();
return err;
_fail:
esp_wake_unlock();
esp_wakelock_destroy();
return err;
}
static void /*__exit*/ esp_sdio_exit(void)
{
esp_dbg(ESP_SHOW, "%s \n", __func__);
esp_debugfs_exit();
esp_unregister_early_suspend();
sdio_unregister_driver(&esp_sdio_driver);
sif_platform_rescan_card(0);
#ifndef FPGA_DEBUG
sif_platform_target_poweroff();
#endif /* !FPGA_DEBUG */
esp_wakelock_destroy();
}
MODULE_AUTHOR("Espressif System");
MODULE_DESCRIPTION("Driver for SDIO interconnected eagle low-power WLAN devices");
MODULE_LICENSE("GPL");
#endif /* ESP_USE_SDIO */