int musb_lowlevel_init(struct musb_host_data *host)
{
void *mbase;
/* USB spec says it may take up to 1 second for a device to connect */
unsigned long timeout = get_timer(0) + 1000;
int ret;
if (!host->host) {
printf("MUSB host is not registered\n");
return -ENODEV;
}
ret = musb_start(host->host);
if (ret)
return ret;
mbase = host->host->mregs;
do {
if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
break;
} while (get_timer(0) < timeout);
if (get_timer(0) >= timeout) {
musb_stop(host->host);
return -ENODEV;
}
_musb_reset_root_port(host, NULL);
host->host->is_active = 1;
host->hcd.hcd_priv = host->host;
return 0;
}
static ssize_t mt_usb_store_cmode(struct device* dev, struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned int cmode;
if (!dev) {
DBG(0,"dev is null!!\n");
return count;
} else if (1 == sscanf(buf, "%d", &cmode)) {
DBG(0, "cmode=%d, cable_mode=%d\n", cmode, cable_mode);
if (cmode >= CABLE_MODE_MAX)
cmode = CABLE_MODE_NORMAL;
if (cable_mode != cmode) {
if(mtk_musb) {
if(down_interruptible(&mtk_musb->musb_lock))
xlog_printk(ANDROID_LOG_ERROR, "USB20", "%s: busy, Couldn't get musb_lock\n", __func__);
}
if(cmode == CABLE_MODE_CHRG_ONLY) { // IPO shutdown, disable USB
if(mtk_musb) {
mtk_musb->in_ipo_off = true;
}
} else if(cmode == CABLE_MODE_NORMAL) { // IPO bootup, enable USB
if(mtk_musb) {
mtk_musb->in_ipo_off = false;
}
}
mt_usb_disconnect();
cable_mode = cmode;
msleep(10);
//ALPS00114502
//check that "if USB cable connected and than call mt_usb_connect"
//Then, the Bat_Thread won't be always wakeup while no USB/chatger cable and IPO mode
//mt_usb_connect();
usb_check_connect();
//ALPS00114502
#ifdef CONFIG_USB_MTK_OTG
if(cmode == CABLE_MODE_CHRG_ONLY) {
if(mtk_musb && mtk_musb->is_host) { // shut down USB host for IPO
musb_stop(mtk_musb);
/* Think about IPO shutdown with A-cable, then switch to B-cable and IPO bootup. We need a point to clear session bit */
musb_writeb(mtk_musb->mregs, MUSB_DEVCTL, (~MUSB_DEVCTL_SESSION)&musb_readb(mtk_musb->mregs,MUSB_DEVCTL));
} else {
switch_int_to_host_and_mask(); // mask ID pin interrupt even if A-cable is not plugged in
}
} else if(cmode == CABLE_MODE_NORMAL) {
switch_int_to_host(); // resotre ID pin interrupt
}
#endif
if(mtk_musb) {
up(&mtk_musb->musb_lock);
}
}
}
return count;
}
static int ti_musb_host_remove(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
musb_stop(host->host);
return 0;
}
static int musb_usb_remove(struct udevice *dev)
{
struct pic32_musb_data *pdata = dev_get_priv(dev);
musb_stop(pdata->mdata.host);
return 0;
}
void mt_usb_disconnect(void)
{
os_printk(K_DEBUG,"%s\n", __func__);
musb_stop(mu3d_musb);
os_printk(K_DEBUG,"%s-\n", __func__);
}
int usb_lowlevel_stop(int index)
{
if (!host) {
printf("MUSB host is not registered\n");
return -ENODEV;
}
musb_stop(host);
return 0;
}
static void musb_id_pin_work(struct work_struct *data)
{
//bool is_ready = mtk_musb->is_ready;
//u8 opstate = 0;
down(&mtk_musb->musb_lock);
DBG(0, "work start, is_host=%d\n", mtk_musb->is_host);
if(mtk_musb->in_ipo_off) {
DBG(0, "do nothing due to in_ipo_off\n");
goto out;
}
//mtk_musb->is_ready = FALSE;
mtk_musb ->is_host = musb_is_host();
DBG(0,"musb is as %s\n",mtk_musb->is_host?"host":"device");
switch_set_state((struct switch_dev *)&otg_state,mtk_musb->is_host);
if(mtk_musb ->is_host) {
//setup fifo for host mode
ep_config_from_table_for_host(mtk_musb);
wake_lock(&mtk_musb->usb_lock);
ignore_vbuserr = false;
musb_set_vbus(mtk_musb,true);
musb_start(mtk_musb);
switch_int_to_device();
} else {
DBG(0,"devctl is %x\n",musb_readb(mtk_musb->mregs,MUSB_DEVCTL));
dumpTime(funcWriteb, 0);
musb_writeb(mtk_musb->mregs,MUSB_DEVCTL,0);
wake_unlock(&mtk_musb->usb_lock);
musb_set_vbus(mtk_musb,FALSE);
/*
opstate = musb_readb(mtk_musb->mregs,MUSB_OPSTATE);
while(opstate != OTG_IDLE)
{
msleep(10);
DBG(1,"wait OTG enter IDLE,opstate is %d\n",opstate);
opstate = musb_readb(mtk_musb->mregs,MUSB_OPSTATE);
}
*/
DBG(0,"musb_stop is called\n");
//switch_int_to_host(); // move to musb_stop
musb_stop(mtk_musb);
}
//mtk_musb->is_ready = is_ready;
out:
DBG(0, "work end, is_host=%d\n", mtk_musb->is_host);
up(&mtk_musb->musb_lock);
}
/* ================================ */
void connection_work(struct work_struct *data)
{
struct musb *musb = container_of(to_delayed_work(data), struct musb, connection_work);
static bool is_on = true;
bool is_usb_cable = usb_cable_connected();
os_printk(K_INFO, "%s musb %s, cable %s\n", __func__, (is_on?"ON":"OFF"), (is_usb_cable?"IN":"OUT"));
if ((is_usb_cable == true) && (is_on == false) && (musb->usb_mode == CABLE_MODE_NORMAL)) {
is_on = true;
if (!wake_lock_active(&musb->usb_wakelock))
wake_lock(&musb->usb_wakelock);
/* FIXME: Should use usb_udc_start() & usb_gadget_connect(), like usb_udc_softconn_store().
* But have no time to think how to handle. However i think it is the correct way.*/
musb_start(musb);
os_printk(K_INFO, "%s ----Connect----\n", __func__);
} else if (((is_usb_cable == false) && (is_on == true)) || (musb->usb_mode != CABLE_MODE_NORMAL)) {
is_on = false;
if (wake_lock_active(&musb->usb_wakelock))
wake_unlock(&musb->usb_wakelock);
/*FIXME: we should use usb_gadget_disconnect() & usb_udc_stop(). like usb_udc_softconn_store().
* But have no time to think how to handle. However i think it is the correct way.*/
musb_stop(musb);
os_printk(K_INFO, "%s ----Disconnect----\n", __func__);
} else {
/* This if-elseif is to set wakelock when booting with USB cable.
* Because battery driver does _NOT_ notify at this codition.*/
if( (is_usb_cable == true) && !wake_lock_active(&musb->usb_wakelock)) {
os_printk(K_INFO, "%s Boot wakelock\n", __func__);
wake_lock(&musb->usb_wakelock);
} else if( (is_usb_cable == false) && wake_lock_active(&musb->usb_wakelock)) {
os_printk(K_INFO, "%s Boot unwakelock\n", __func__);
wake_unlock(&musb->usb_wakelock);
}
os_printk(K_INFO, "%s directly return\n", __func__);
}
}
static int musb_usb_remove(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
musb_stop(host->host);
sunxi_usb_phy_exit(0);
#ifdef CONFIG_SUNXI_GEN_SUN6I
clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
#endif
clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
free(host->host);
host->host = NULL;
return 0;
}
void mt_usb_disconnect(void)
{
DBG(0,"[MUSB] USB is ready for disconnect\n");
if (!mtk_musb || !mtk_musb->is_ready || mtk_musb->is_host || !mtk_musb->power)
return;
musb_stop(mtk_musb);
if (wake_lock_active(&mtk_musb->usb_lock))
wake_unlock(&mtk_musb->usb_lock);
if (cable_mode == CABLE_MODE_CHRG_ONLY) {
musb_sync_with_bat(mtk_musb,USB_SUSPEND);
mtk_musb->power = false;
return;
}
DBG(0,"USB disconnect\n");
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
struct musb_otg_work *otg_work =
container_of(data_notifier_work, struct musb_otg_work, work);
struct musb *musb = otg_work->musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
enum usb_xceiv_events xceiv_event = otg_work->xceiv_event;
unsigned long flags;
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
int ret = 0;
#endif
kfree(otg_work);
switch (xceiv_event) {
case USB_EVENT_ID:
dev_info(musb->controller, "ID GND\n");
musb->xceiv->state = OTG_STATE_A_IDLE;
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
ret = omap2430_async_resume(musb);
if (ret < 0)
return;
#endif
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
musb_otg_init(musb);
}
#endif
} else {
musb_otg_init(musb);
}
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
musb_add_hcd(musb);
#endif
break;
case USB_EVENT_VBUS_CHARGER:
dev_info(musb->controller, "USB/TA Connect\n");
/* This event received from ta_connect_irq
* when a usb cable is connected. Logic has still
* not identified whether this is a usb cable or TA.
* So just break here.
*/
break;
case USB_EVENT_VBUS:
dev_info(musb->controller, "VBUS Connect\n");
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
ret = omap2430_async_resume(musb);
if (ret < 0)
return;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
#endif
otg_init(musb->xceiv);
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
musb_start(musb);
musb_platform_pullup(musb, 1);
#endif
break;
case USB_EVENT_CHARGER:
dev_info(musb->controller, "Dedicated charger connect\n");
musb->is_ac_charger = true;
break;
case USB_EVENT_HOST_NONE:
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
dev_info(musb->controller, "USB host Disconnect. ID float\n");
if (!omap2430_async_resumed(musb)) {
dev_err(musb->controller, "async suspended. abnormal state.\n");
return;
}
musb_stop(musb);
musb_remove_hcd(musb);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
musb_otg_core_reset(musb);
ret = omap2430_async_suspend(musb);
if (ret < 0)
return;
break;
#endif
case USB_EVENT_NONE:
if (musb->is_ac_charger) {
dev_info(musb->controller,
"Dedicated charger disconnect\n");
musb->is_ac_charger = false;
break;
}
dev_info(musb->controller, "VBUS Disconnect\n");
#ifndef CONFIG_USB_SAMSUNG_OMAP_NORPM
if (pm_runtime_suspended(musb->controller)) {
dev_err(musb->controller, "runtime pm suspended. abnormal state.\n");
return;
}
spin_lock_irqsave(&musb->lock, flags);
musb_g_disconnect(musb);
spin_unlock_irqrestore(&musb->lock, flags);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver)
#endif
{
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
#else
if (!omap2430_async_resumed(musb)) {
dev_err(musb->controller, "async suspended. abnormal state.\n");
return;
}
musb_platform_pullup(musb, 0);
spin_lock_irqsave(&musb->lock, flags);
musb_stop(musb);
musb_g_disconnect(musb);
musb_all_ep_flush(musb);
spin_unlock_irqrestore(&musb->lock, flags);
if (data->interface_type == MUSB_INTERFACE_UTMI)
omap2430_musb_set_vbus(musb, 0);
otg_shutdown(musb->xceiv);
musb_otg_core_reset(musb);
ret = omap2430_async_suspend(musb);
if (ret < 0)
return;
#endif
break;
default:
dev_info(musb->controller, "ID float\n");
}
}
static void musb_id_pin_work(struct work_struct *data)
{
u8 devctl = 0;
unsigned long flags;
spin_lock_irqsave(&mtk_musb->lock, flags);
musb_generic_disable(mtk_musb);
spin_unlock_irqrestore(&mtk_musb->lock, flags);
down(&mtk_musb->musb_lock);
DBG(0, "work start, is_host=%d\n", mtk_musb->is_host);
if(mtk_musb->in_ipo_off) {
DBG(0, "do nothing due to in_ipo_off\n");
goto out;
}
mtk_musb ->is_host = musb_is_host();
DBG(0,"musb is as %s\n",mtk_musb->is_host?"host":"device");
switch_set_state((struct switch_dev *)&otg_state, mtk_musb->is_host);
if (mtk_musb->is_host) {
//setup fifo for host mode
ep_config_from_table_for_host(mtk_musb);
wake_lock(&mtk_musb->usb_lock);
musb_platform_set_vbus(mtk_musb, 1);
/* for no VBUS sensing IP*/
#if 1
/* wait VBUS ready */
msleep(100);
/* clear session*/
devctl = musb_readb(mtk_musb->mregs,MUSB_DEVCTL);
musb_writeb(mtk_musb->mregs, MUSB_DEVCTL, (devctl&(~MUSB_DEVCTL_SESSION)));
/* USB MAC OFF*/
/* VBUSVALID=0, AVALID=0, BVALID=0, SESSEND=1, IDDIG=X */
USBPHY_SET8(0x6c, 0x10);
USBPHY_CLR8(0x6c, 0x2e);
USBPHY_SET8(0x6d, 0x3e);
DBG(0,"force PHY to idle, 0x6d=%x, 0x6c=%x\n",USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
/* wait */
msleep(5);
/* restart session */
devctl = musb_readb(mtk_musb->mregs,MUSB_DEVCTL);
musb_writeb(mtk_musb->mregs, MUSB_DEVCTL, (devctl| MUSB_DEVCTL_SESSION));
/* USB MAC ONand Host Mode*/
/* VBUSVALID=1, AVALID=1, BVALID=1, SESSEND=0, IDDIG=0 */
USBPHY_CLR8(0x6c, 0x10);
USBPHY_SET8(0x6c, 0x2c);
USBPHY_SET8(0x6d, 0x3e);
DBG(0,"force PHY to host mode, 0x6d=%x, 0x6c=%x\n",USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
#endif
musb_start(mtk_musb);
MUSB_HST_MODE(mtk_musb);
switch_int_to_device(mtk_musb);
} else {
DBG(0,"devctl is %x\n",musb_readb(mtk_musb->mregs,MUSB_DEVCTL));
musb_writeb(mtk_musb->mregs,MUSB_DEVCTL,0);
if (wake_lock_active(&mtk_musb->usb_lock))
wake_unlock(&mtk_musb->usb_lock);
musb_platform_set_vbus(mtk_musb, 0);
/* for no VBUS sensing IP */
#if 1
/* USB MAC OFF*/
/* VBUSVALID=0, AVALID=0, BVALID=0, SESSEND=1, IDDIG=X */
USBPHY_SET8(0x6c, 0x10);
USBPHY_CLR8(0x6c, 0x2e);
USBPHY_SET8(0x6d, 0x3e);
DBG(0,"force PHY to idle, 0x6d=%x, 0x6c=%x\n", USBPHY_READ8(0x6d), USBPHY_READ8(0x6c));
#endif
musb_stop(mtk_musb);
//ALPS00849138
mtk_musb->xceiv->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(mtk_musb);
switch_int_to_host(mtk_musb);
}
out:
DBG(0, "work end, is_host=%d\n", mtk_musb->is_host);
up(&mtk_musb->musb_lock);
}
/* blocking notifier support */
void cpcap_musb_notifier_call(unsigned long event)
{
struct musb *musb = g_musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
static int hostmode;
u32 val;
u8 power;
switch (event) {
case USB_EVENT_ID:
DBG(1, "ID GND\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
omap_pm_set_max_mpu_wakeup_lat(&pdata->musb_qos_request, 4000);
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
phy_init();
otg_init(musb->xceiv);
/* enable VBUS valid, id groung*/
__raw_writel(AVALID | VBUSVALID, ctrl_base +
USBOTGHS_CONTROL);
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val |= DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
}
hostmode = 1;
musb_start(musb);
musb_set_vbus(musb, 1);
break;
case USB_EVENT_VBUS:
DBG(1, "VBUS Connect\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
power = musb_readb(musb->mregs, MUSB_POWER);
power &= ~MUSB_POWER_SOFTCONN;
musb_writeb(musb->mregs, MUSB_POWER, power);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
phy_init();
otg_init(musb->xceiv);
if (!hostmode) {
/* Enable VBUS Valid, AValid. Clear SESSEND.*/
__raw_writel(IDDIG | AVALID | VBUSVALID,
ctrl_base + USBOTGHS_CONTROL);
}
}
break;
case USB_EVENT_NONE:
DBG(1, "VBUS Disconnect\n");
if (data->interface_type == MUSB_INTERFACE_UTMI) {
/* enable this clock because in suspend interrupt
* handler phy clocks are disabled. If phy clocks are
* not enabled then DISCONNECT interrupt will not be
* reached to mentor
*/
otg_set_clk(musb->xceiv, 1);
__raw_writel(SESSEND | IDDIG, ctrl_base +
USBOTGHS_CONTROL);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
otg_shutdown(musb->xceiv);
phy_shutdown();
}
/* configure in force idle/ standby */
musb_writel(musb->mregs, OTG_FORCESTDBY, 1);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
val &= ~(SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP);
val |= FORCEIDLE | FORCESTDBY;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
omap_pm_set_max_mpu_wakeup_lat(&pdata->musb_qos_request, -1);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val &= ~DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
}
if (hostmode) {
musb_stop(musb);
musb_set_vbus(musb, 0);
}
hostmode = 0;
break;
default:
DBG(1, "ID float\n");
}
}