int usb_lowlevel_init(int index, void **controller)
{
u8 power;
void *mbase;
int timeout = MUSB_HOST_TIMEOUT;
if (!host) {
printf("MUSB host is not registered\n");
return -ENODEV;
}
musb_start(host);
mbase = host->mregs;
do {
if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
break;
} while (--timeout);
if (!timeout)
return -ENODEV;
power = musb_readb(mbase, MUSB_POWER);
musb_writeb(mbase, MUSB_POWER, MUSB_POWER_RESET | power);
udelay(30000);
power = musb_readb(mbase, MUSB_POWER);
musb_writeb(mbase, MUSB_POWER, ~MUSB_POWER_RESET & power);
host->isr(0, host);
host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
USB_SPEED_HIGH :
(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
USB_SPEED_FULL : USB_SPEED_LOW;
host->is_active = 1;
hcd.hcd_priv = host;
return 0;
}
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;
}
int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
{
void *mbase;
/* USB spec says it may take up to 1 second for a device to connect */
unsigned long timeout = get_timer(0) + 1000;
if (!host) {
printf("MUSB host is not registered\n");
return -ENODEV;
}
musb_start(host);
mbase = host->mregs;
do {
if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
break;
} while (get_timer(0) < timeout);
if (get_timer(0) >= timeout)
return -ENODEV;
usb_reset_root_port();
host->is_active = 1;
hcd.hcd_priv = host;
return 0;
}
void mt_usb_connect(void)
{
os_printk(K_DEBUG,"%s+\n", __func__);
musb_start(mu3d_musb);
os_printk(K_DEBUG,"%s-\n", __func__);
}
void mt_usb_connect(void)
{
DBG(0,"[MUSB] USB is ready for connect\n");
DBG(3, "is ready %d is_host %d power %d\n",mtk_musb->is_ready,mtk_musb->is_host , mtk_musb->power);
if(!mtk_musb || !mtk_musb->is_ready || mtk_musb->is_host || mtk_musb->power)
return;
if(cable_mode == CABLE_MODE_CHRG_ONLY)
{
musb_sync_with_bat(mtk_musb,USB_CONFIGURED);
mtk_musb->power = true;
return;
}
musb_start(mtk_musb);
DBG(0,"USB connect\n");
}
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__);
}
}
int musb_hub_control(
struct usb_hcd *hcd,
u16 typeReq,
u16 wValue,
u16 wIndex,
char *buf,
u16 wLength)
{
struct musb *musb = hcd_to_musb(hcd);
u32 temp;
int retval = 0;
unsigned long flags;
spin_lock_irqsave(&musb->lock, flags);
if (unlikely(!HCD_HW_ACCESSIBLE(hcd))) {
spin_unlock_irqrestore(&musb->lock, flags);
return -ESHUTDOWN;
}
/* hub features: always zero, setting is a NOP
* port features: reported, sometimes updated when host is active
* no indicators
*/
switch (typeReq) {
case ClearHubFeature:
case SetHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
break;
default:
goto error;
}
break;
case ClearPortFeature:
if ((wIndex & 0xff) != 1)
goto error;
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
break;
case USB_PORT_FEAT_SUSPEND:
musb_port_suspend(musb, false);
break;
case USB_PORT_FEAT_POWER:
if (!hcd->self.is_b_host)
musb_platform_set_vbus(musb, 0);
break;
case USB_PORT_FEAT_C_CONNECTION:
case USB_PORT_FEAT_C_ENABLE:
case USB_PORT_FEAT_C_OVER_CURRENT:
case USB_PORT_FEAT_C_RESET:
case USB_PORT_FEAT_C_SUSPEND:
break;
default:
goto error;
}
dev_dbg(musb->controller, "clear feature %d\n", wValue);
musb->port1_status &= ~(1 << wValue);
break;
case GetHubDescriptor:
{
struct usb_hub_descriptor *desc = (void *)buf;
desc->bDescLength = 9;
desc->bDescriptorType = 0x29;
desc->bNbrPorts = 1;
desc->wHubCharacteristics = cpu_to_le16(
0x0001 /* per-port power switching */
| 0x0010 /* no overcurrent reporting */
);
desc->bPwrOn2PwrGood = 5; /* msec/2 */
desc->bHubContrCurrent = 0;
/* workaround bogus struct definition */
desc->u.hs.DeviceRemovable[0] = 0x02; /* port 1 */
desc->u.hs.DeviceRemovable[1] = 0xff;
}
break;
case GetHubStatus:
temp = 0;
*(__le32 *) buf = cpu_to_le32(temp);
break;
case GetPortStatus:
if (wIndex != 1)
goto error;
put_unaligned(cpu_to_le32(musb->port1_status
& ~MUSB_PORT_STAT_RESUME),
(__le32 *) buf);
/* port change status is more interesting */
dev_dbg(musb->controller, "port status %08x\n",
musb->port1_status);
break;
case SetPortFeature:
if ((wIndex & 0xff) != 1)
goto error;
switch (wValue) {
case USB_PORT_FEAT_POWER:
/* NOTE: this controller has a strange state machine
* that involves "requesting sessions" according to
* magic side effects from incompletely-described
* rules about startup...
*
* This call is what really starts the host mode; be
* very careful about side effects if you reorder any
* initialization logic, e.g. for OTG, or change any
* logic relating to VBUS power-up.
*/
if (!hcd->self.is_b_host && musb_has_gadget(musb))
musb_start(musb);
break;
case USB_PORT_FEAT_RESET:
musb_port_reset(musb, true);
break;
case USB_PORT_FEAT_SUSPEND:
musb_port_suspend(musb, true);
break;
case USB_PORT_FEAT_TEST:
if (unlikely(is_host_active(musb)))
goto error;
wIndex >>= 8;
switch (wIndex) {
case 1:
pr_debug("TEST_J\n");
temp = MUSB_TEST_J;
break;
case 2:
pr_debug("TEST_K\n");
temp = MUSB_TEST_K;
break;
case 3:
pr_debug("TEST_SE0_NAK\n");
temp = MUSB_TEST_SE0_NAK;
break;
case 4:
pr_debug("TEST_PACKET\n");
temp = MUSB_TEST_PACKET;
musb_load_testpacket(musb);
break;
case 5:
pr_debug("TEST_FORCE_ENABLE\n");
temp = MUSB_TEST_FORCE_HOST
| MUSB_TEST_FORCE_HS;
musb_writeb(musb->mregs, MUSB_DEVCTL,
MUSB_DEVCTL_SESSION);
break;
case 6:
pr_debug("TEST_FIFO_ACCESS\n");
temp = MUSB_TEST_FIFO_ACCESS;
break;
default:
goto error;
}
musb_writeb(musb->mregs, MUSB_TESTMODE, temp);
break;
default:
goto error;
}
dev_dbg(musb->controller, "set feature %d\n", wValue);
musb->port1_status |= 1 << wValue;
break;
default:
error:
/* "protocol stall" on error */
retval = -EPIPE;
}
spin_unlock_irqrestore(&musb->lock, flags);
return retval;
}
int musb_hub_control(
struct usb_hcd *hcd,
u16 typeReq,
u16 wValue,
u16 wIndex,
char *buf,
u16 wLength)
{
struct musb *musb = hcd_to_musb(hcd);
u32 temp;
int retval = 0;
unsigned long flags;
spin_lock_irqsave(&musb->lock, flags);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) {
spin_unlock_irqrestore(&musb->lock, flags);
return -ESHUTDOWN;
}
/* hub features: always zero, setting is a NOP
* port features: reported, sometimes updated when host is active
* no indicators
*/
switch (typeReq) {
case ClearHubFeature:
case SetHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
break;
default:
goto error;
}
break;
case ClearPortFeature:
if ((wIndex & 0xff) != 1)
goto error;
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
break;
case USB_PORT_FEAT_SUSPEND:
musb_port_suspend(musb, false);
break;
case USB_PORT_FEAT_POWER:
if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
musb_set_vbus(musb, 0);
break;
case USB_PORT_FEAT_C_CONNECTION:
case USB_PORT_FEAT_C_ENABLE:
case USB_PORT_FEAT_C_OVER_CURRENT:
case USB_PORT_FEAT_C_RESET:
case USB_PORT_FEAT_C_SUSPEND:
break;
default:
goto error;
}
DBG(5, "clear feature %d\n", wValue);
musb->port1_status &= ~(1 << wValue);
break;
case GetHubDescriptor:
{
struct usb_hub_descriptor *desc = (void *)buf;
desc->bDescLength = 9;
desc->bDescriptorType = 0x29;
desc->bNbrPorts = 1;
desc->wHubCharacteristics = cpu_to_le16(
0x0001 /* per-port power switching */
| 0x0010 /* no overcurrent reporting */
);
desc->bPwrOn2PwrGood = 5; /* msec/2 */
desc->bHubContrCurrent = 0;
/* workaround bogus struct definition */
desc->DeviceRemovable[0] = 0x02; /* port 1 */
desc->DeviceRemovable[1] = 0xff;
}
break;
case GetHubStatus:
temp = 0;
*(__le32 *) buf = cpu_to_le32(temp);
break;
case GetPortStatus:
if (wIndex != 1)
goto error;
/* finish RESET signaling? */
if ((musb->port1_status & USB_PORT_STAT_RESET)
&& time_after_eq(jiffies, musb->rh_timer))
musb_port_reset(musb, false);
/* finish RESUME signaling? */
if ((musb->port1_status & MUSB_PORT_STAT_RESUME)
&& time_after_eq(jiffies, musb->rh_timer)) {
u8 power;
power = musb_readb(musb->mregs, MUSB_POWER);
power &= ~MUSB_POWER_RESUME;
DBG(4, "root port resume stopped, power %02x\n",
power);
musb_writeb(musb->mregs, MUSB_POWER, power);
/* ISSUE: DaVinci (RTL 1.300) disconnects after
* resume of high speed peripherals (but not full
* speed ones).
*/
musb->is_active = 1;
musb->port1_status &= ~(USB_PORT_STAT_SUSPEND
| MUSB_PORT_STAT_RESUME);
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb_to_hcd(musb));
/* NOTE: it might really be A_WAIT_BCON ... */
musb->xceiv->state = OTG_STATE_A_HOST;
}
put_unaligned(cpu_to_le32(musb->port1_status
& ~MUSB_PORT_STAT_RESUME),
(__le32 *) buf);
/* port change status is more interesting */
DBG(get_unaligned((u16 *)(buf+2)) ? 2 : 5, "port status %08x\n",
musb->port1_status);
break;
case SetPortFeature:
if ((wIndex & 0xff) != 1)
goto error;
switch (wValue) {
case USB_PORT_FEAT_POWER:
/* NOTE: this controller has a strange state machine
* that involves "requesting sessions" according to
* magic side effects from incompletely-described
* rules about startup...
*
* This call is what really starts the host mode; be
* very careful about side effects if you reorder any
* initialization logic, e.g. for OTG, or change any
* logic relating to VBUS power-up.
*/
if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
musb_start(musb);
break;
case USB_PORT_FEAT_RESET:
musb_port_reset(musb, true);
break;
case USB_PORT_FEAT_SUSPEND:
musb_port_suspend(musb, true);
break;
case USB_PORT_FEAT_TEST:
wIndex >>= 8;
switch (wIndex) {
case 1:
pr_debug("TEST_J\n");
temp = MUSB_TEST_J;
break;
case 2:
pr_debug("TEST_K\n");
temp = MUSB_TEST_K;
break;
case 3:
pr_debug("TEST_SE0_NAK\n");
temp = MUSB_TEST_SE0_NAK;
break;
case 4:
pr_debug("TEST_PACKET\n");
temp = MUSB_TEST_PACKET;
musb_load_testpacket(musb);
break;
case 5:
pr_debug("TEST_FORCE_ENABLE\n");
temp = MUSB_TEST_FORCE_HOST
| MUSB_TEST_FORCE_HS;
musb_writeb(musb->mregs, MUSB_DEVCTL,
MUSB_DEVCTL_SESSION);
break;
case 6:
pr_debug("TEST_FIFO_ACCESS\n");
temp = MUSB_TEST_FIFO_ACCESS;
break;
default:
goto error;
}
musb_writeb(musb->mregs, MUSB_TESTMODE, temp);
break;
default:
goto error;
}
DBG(5, "set feature %d\n", wValue);
musb->port1_status |= 1 << wValue;
break;
default:
error:
/* "protocol stall" on error */
retval = -EPIPE;
}
spin_unlock_irqrestore(&musb->lock, flags);
return retval;
}
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");
}
}
