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usb: musb: drop useless board_mode usage 

we are compiling the driver always with full OTG
capabilities, so that board_mode trick becomes
useless.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2011-11-24 15:46:26 +02:00
parent 4f3e8d263d
commit 032ec49f53
11 changed files with 158 additions and 333 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/usb/musb/am35x.c
View File

@ -107,9 +107,8 @@ static void am35x_musb_enable(struct musb *musb)
musb_writel(reg_base, CORE_INTR_MASK_SET_REG, AM35X_INTR_USB_MASK);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
if (is_otg_enabled(musb))
musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
}
/*
@ -173,9 +172,6 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
break;
case OTG_STATE_B_IDLE:
if (!is_peripheral_enabled(musb))
break;
devctl = musb_readb(mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
@ -192,9 +188,6 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
{
static unsigned long last_timer;
if (!is_otg_enabled(musb))
return;
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@ -271,8 +264,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err;
err = is_host_enabled(musb) && (musb->int_usb &
MUSB_INTR_VBUSERROR);
err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@ -289,7 +281,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (is_host_enabled(musb) && drvvbus) {
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@ -326,7 +318,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
}
/* Poll for ID change */
if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@ -369,8 +361,7 @@ static int am35x_musb_init(struct musb *musb)
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
if (is_host_enabled(musb))
setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
/* Reset the musb */
if (data->reset)
@ -400,8 +391,7 @@ static int am35x_musb_exit(struct musb *musb)
struct musb_hdrc_platform_data *plat = dev->platform_data;
struct omap_musb_board_data *data = plat->board_data;
if (is_host_enabled(musb))
del_timer_sync(&otg_workaround);
del_timer_sync(&otg_workaround);
/* Shutdown the on-chip PHY and its PLL. */
if (data->set_phy_power)

37
drivers/usb/musb/blackfin.c
View File

@ -184,8 +184,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
}
/* Start sampling ID pin, when plug is removed from MUSB */
if ((is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) ||
if ((musb->xceiv->state == OTG_STATE_B_IDLE
|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
@ -228,18 +228,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
musb_writeb(musb->mregs, MUSB_INTRUSB, val);
if (is_otg_enabled(musb))
musb->xceiv->state = OTG_STATE_B_IDLE;
else
musb_writeb(musb->mregs, MUSB_POWER, MUSB_POWER_HSENAB);
musb->xceiv->state = OTG_STATE_B_IDLE;
}
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
break;
case OTG_STATE_B_IDLE:
if (!is_peripheral_enabled(musb))
break;
/* Start a new session. It seems that MUSB needs taking
/*
* Start a new session. It seems that MUSB needs taking
* some time to recognize the type of the plug inserted?
*/
val = musb_readw(musb->mregs, MUSB_DEVCTL);
@ -295,10 +290,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
static void bfin_musb_enable(struct musb *musb)
{
if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
}
/* REVISIT is this really correct ? */
}
static void bfin_musb_disable(struct musb *musb)
@ -323,12 +315,6 @@ static int bfin_musb_set_power(struct usb_phy *x, unsigned mA)
return 0;
}
static void bfin_musb_try_idle(struct musb *musb, unsigned long timeout)
{
if (!is_otg_enabled(musb) && is_host_enabled(musb))
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
}
static int bfin_musb_vbus_status(struct musb *musb)
{
return 0;
@ -424,12 +410,10 @@ static int bfin_musb_init(struct musb *musb)
bfin_musb_reg_init(musb);
if (is_host_enabled(musb)) {
setup_timer(&musb_conn_timer,
musb_conn_timer_handler, (unsigned long) musb);
}
if (is_peripheral_enabled(musb))
musb->xceiv->set_power = bfin_musb_set_power;
setup_timer(&musb_conn_timer, musb_conn_timer_handler,
(unsigned long) musb);
musb->xceiv->set_power = bfin_musb_set_power;
musb->isr = blackfin_interrupt;
musb->double_buffer_not_ok = true;
@ -454,7 +438,6 @@ static const struct musb_platform_ops bfin_ops = {
.disable = bfin_musb_disable,
.set_mode = bfin_musb_set_mode,
.try_idle = bfin_musb_try_idle,
.vbus_status = bfin_musb_vbus_status,
.set_vbus = bfin_musb_set_vbus,

24
drivers/usb/musb/da8xx.c
View File

@ -155,9 +155,8 @@ static void da8xx_musb_enable(struct musb *musb)
musb_writel(reg_base, DA8XX_USB_INTR_MASK_SET_REG, mask);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
if (is_otg_enabled(musb))
musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
}
/**
@ -231,9 +230,6 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
break;
case OTG_STATE_B_IDLE:
if (!is_peripheral_enabled(musb))
break;
/*
* There's no ID-changed IRQ, so we have no good way to tell
* when to switch to the A-Default state machine (by setting
@ -263,9 +259,6 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
{
static unsigned long last_timer;
if (!is_otg_enabled(musb))
return;
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@ -333,8 +326,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err;
err = is_host_enabled(musb) && (musb->int_usb &
MUSB_INTR_VBUSERROR);
err = musb->int_usb & USB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@ -351,7 +343,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (is_host_enabled(musb) && drvvbus) {
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@ -382,7 +374,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
/* Poll for ID change */
if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@ -430,8 +422,7 @@ static int da8xx_musb_init(struct musb *musb)
if (IS_ERR_OR_NULL(musb->xceiv))
goto fail;
if (is_host_enabled(musb))
setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
/* Reset the controller */
musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
@ -454,8 +445,7 @@ static int da8xx_musb_init(struct musb *musb)
static int da8xx_musb_exit(struct musb *musb)
{
if (is_host_enabled(musb))
del_timer_sync(&otg_workaround);
del_timer_sync(&otg_workaround);
phy_off();

32
drivers/usb/musb/davinci.c
View File

@ -115,8 +115,7 @@ static void davinci_musb_enable(struct musb *musb)
dma_off = 0;
/* force a DRVVBUS irq so we can start polling for ID change */
if (is_otg_enabled(musb))
musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT);
}
@ -234,10 +233,8 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
break;
case OTG_STATE_B_IDLE:
if (!is_peripheral_enabled(musb))
break;
/* There's no ID-changed IRQ, so we have no good way to tell
/*
* There's no ID-changed IRQ, so we have no good way to tell
* when to switch to the A-Default state machine (by setting
* the DEVCTL.SESSION flag).
*
@ -315,8 +312,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
int err = musb->int_usb & MUSB_INTR_VBUSERROR;
err = is_host_enabled(musb)
&& (musb->int_usb & MUSB_INTR_VBUSERROR);
err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/* The Mentor core doesn't debounce VBUS as needed
* to cope with device connect current spikes. This
@ -332,7 +328,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (is_host_enabled(musb) && drvvbus) {
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@ -365,8 +361,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
/* poll for ID change */
if (is_otg_enabled(musb)
&& musb->xceiv->state == OTG_STATE_B_IDLE)
if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@ -397,8 +392,7 @@ static int davinci_musb_init(struct musb *musb)
if (revision == 0)
goto fail;
if (is_host_enabled(musb))
setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
davinci_musb_source_power(musb, 0, 1);
@ -419,12 +413,7 @@ static int davinci_musb_init(struct musb *musb)
if (cpu_is_davinci_dm355()) {
u32 deepsleep = __raw_readl(DM355_DEEPSLEEP);
if (is_host_enabled(musb)) {
deepsleep &= ~DRVVBUS_OVERRIDE;
} else {
deepsleep &= ~DRVVBUS_FORCE;
deepsleep |= DRVVBUS_OVERRIDE;
}
deepsleep &= ~DRVVBUS_FORCE;
__raw_writel(deepsleep, DM355_DEEPSLEEP);
}
@ -453,8 +442,7 @@ static int davinci_musb_init(struct musb *musb)
static int davinci_musb_exit(struct musb *musb)
{
if (is_host_enabled(musb))
del_timer_sync(&otg_workaround);
del_timer_sync(&otg_workaround);
/* force VBUS off */
if (cpu_is_davinci_dm355()) {
@ -468,7 +456,7 @@ static int davinci_musb_exit(struct musb *musb)
davinci_musb_source_power(musb, 0 /*off*/, 1);
/* delay, to avoid problems with module reload */
if (is_host_enabled(musb) && musb->xceiv->otg->default_a) {
if (musb->xceiv->otg->default_a) {
int maxdelay = 30;
u8 devctl, warn = 0;

204
drivers/usb/musb/musb_core.c
View File

@ -649,8 +649,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
break;
case OTG_STATE_B_PERIPHERAL:
musb_g_suspend(musb);
musb->is_active = is_otg_enabled(musb)
&& otg->gadget->b_hnp_enable;
musb->is_active = otg->gadget->b_hnp_enable;
if (musb->is_active) {
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
@ -666,8 +665,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
break;
case OTG_STATE_A_HOST:
musb->xceiv->state = OTG_STATE_A_SUSPEND;
musb->is_active = is_otg_enabled(musb)
&& otg->host->b_hnp_enable;
musb->is_active = otg->host->b_hnp_enable;
break;
case OTG_STATE_B_HOST:
/* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
@ -755,7 +753,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
case OTG_STATE_A_SUSPEND:
usb_hcd_resume_root_hub(musb_to_hcd(musb));
musb_root_disconnect(musb);
if (musb->a_wait_bcon != 0 && is_otg_enabled(musb))
if (musb->a_wait_bcon != 0)
musb_platform_try_idle(musb, jiffies
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
@ -931,25 +929,16 @@ void musb_start(struct musb *musb)
devctl = musb_readb(regs, MUSB_DEVCTL);
devctl &= ~MUSB_DEVCTL_SESSION;
if (is_otg_enabled(musb)) {
/* session started after:
* (a) ID-grounded irq, host mode;
* (b) vbus present/connect IRQ, peripheral mode;
* (c) peripheral initiates, using SRP
*/
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
musb->is_active = 1;
else
devctl |= MUSB_DEVCTL_SESSION;
} else if (is_host_enabled(musb)) {
/* assume ID pin is hard-wired to ground */
/* session started after:
* (a) ID-grounded irq, host mode;
* (b) vbus present/connect IRQ, peripheral mode;
* (c) peripheral initiates, using SRP
*/
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
musb->is_active = 1;
else
devctl |= MUSB_DEVCTL_SESSION;
} else /* peripheral is enabled */ {
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
musb->is_active = 1;
}
musb_platform_enable(musb);
musb_writeb(regs, MUSB_DEVCTL, devctl);
}
@ -1013,8 +1002,6 @@ static void musb_shutdown(struct platform_device *pdev)
musb_generic_disable(musb);
spin_unlock_irqrestore(&musb->lock, flags);
if (!is_otg_enabled(musb) && is_host_enabled(musb))
usb_remove_hcd(musb_to_hcd(musb));
musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
musb_platform_exit(musb);
@ -1885,6 +1872,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
int status;
struct musb *musb;
struct musb_hdrc_platform_data *plat = dev->platform_data;
struct usb_hcd *hcd;
/* The driver might handle more features than the board; OK.
* Fail when the board needs a feature that's not enabled.
@ -1907,7 +1895,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_enable(musb->controller);
spin_lock_init(&musb->lock);
musb->board_mode = plat->mode;
musb->board_set_power = plat->set_power;
musb->min_power = plat->min_power;
musb->ops = plat->platform_ops;
@ -1978,7 +1965,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
goto fail3;
}
musb->nIrq = nIrq;
/* FIXME this handles wakeup irqs wrong */
/* FIXME this handles wakeup irqs wrong */
if (enable_irq_wake(nIrq) == 0) {
musb->irq_wake = 1;
device_init_wakeup(dev, 1);
@ -1987,58 +1974,25 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
}
/* host side needs more setup */
if (is_host_enabled(musb)) {
struct usb_hcd *hcd = musb_to_hcd(musb);
hcd = musb_to_hcd(musb);
otg_set_host(musb->xceiv->otg, &hcd->self);
hcd->self.otg_port = 1;
musb->xceiv->otg->host = &hcd->self;
hcd->power_budget = 2 * (plat->power ? : 250);
otg_set_host(musb->xceiv->otg, &hcd->self);
if (is_otg_enabled(musb))
hcd->self.otg_port = 1;
musb->xceiv->otg->host = &hcd->self;
hcd->power_budget = 2 * (plat->power ? : 250);
/* program PHY to use external vBus if required */
if (plat->extvbus) {
u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
busctl |= MUSB_ULPI_USE_EXTVBUS;
musb_write_ulpi_buscontrol(musb->mregs, busctl);
}
/* program PHY to use external vBus if required */
if (plat->extvbus) {
u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
busctl |= MUSB_ULPI_USE_EXTVBUS;
musb_write_ulpi_buscontrol(musb->mregs, busctl);
}
/* For the host-only role, we can activate right away.
* (We expect the ID pin to be forcibly grounded!!)
* Otherwise, wait till the gadget driver hooks up.
*/
if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
struct usb_hcd *hcd = musb_to_hcd(musb);
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
musb->xceiv->state = OTG_STATE_B_IDLE;
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
musb->xceiv->state = OTG_STATE_A_IDLE;
status = musb_gadget_setup(musb);
status = usb_add_hcd(musb_to_hcd(musb), 0, 0);
hcd->self.uses_pio_for_control = 1;
dev_dbg(musb->controller, "%s mode, status %d, devctl %02x %c\n",
"HOST", status,
musb_readb(musb->mregs, MUSB_DEVCTL),
(musb_readb(musb->mregs, MUSB_DEVCTL)
& MUSB_DEVCTL_BDEVICE
? 'B' : 'A'));
} else /* peripheral is enabled */ {
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
musb->xceiv->state = OTG_STATE_B_IDLE;
status = musb_gadget_setup(musb);
dev_dbg(musb->controller, "%s mode, status %d, dev%02x\n",
is_otg_enabled(musb) ? "OTG" : "PERIPHERAL",
status,
musb_readb(musb->mregs, MUSB_DEVCTL));
}
if (status < 0)
goto fail3;
@ -2054,28 +2008,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_put(musb->controller);
dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
({char *s;
switch (musb->board_mode) {
case MUSB_HOST: s = "Host"; break;
case MUSB_PERIPHERAL: s = "Peripheral"; break;
default: s = "OTG"; break;
}; s; }),
ctrl,
(is_dma_capable() && musb->dma_controller)
? "DMA" : "PIO",
musb->nIrq);
return 0;
fail5:
musb_exit_debugfs(musb);
fail4:
if (!is_otg_enabled(musb) && is_host_enabled(musb))
usb_remove_hcd(musb_to_hcd(musb));
else
musb_gadget_cleanup(musb);
musb_gadget_cleanup(musb);
fail3:
pm_runtime_put_sync(musb->controller);
@ -2166,11 +2105,9 @@ static void musb_save_context(struct musb *musb)
void __iomem *musb_base = musb->mregs;
void __iomem *epio;
if (is_host_enabled(musb)) {
musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
}
musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
musb->context.power = musb_readb(musb_base, MUSB_POWER);
musb->context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);
musb->context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);
@ -2209,30 +2146,29 @@ static void musb_save_context(struct musb *musb)
musb->context.index_regs[i].rxfifosz =
musb_read_rxfifosz(musb_base);
}
if (is_host_enabled(musb)) {
musb->context.index_regs[i].txtype =
musb_readb(epio, MUSB_TXTYPE);
musb->context.index_regs[i].txinterval =
musb_readb(epio, MUSB_TXINTERVAL);
musb->context.index_regs[i].rxtype =
musb_readb(epio, MUSB_RXTYPE);
musb->context.index_regs[i].rxinterval =
musb_readb(epio, MUSB_RXINTERVAL);
musb->context.index_regs[i].txfunaddr =
musb_read_txfunaddr(musb_base, i);
musb->context.index_regs[i].txhubaddr =
musb_read_txhubaddr(musb_base, i);
musb->context.index_regs[i].txhubport =
musb_read_txhubport(musb_base, i);
musb->context.index_regs[i].txtype =
musb_readb(epio, MUSB_TXTYPE);
musb->context.index_regs[i].txinterval =
musb_readb(epio, MUSB_TXINTERVAL);
musb->context.index_regs[i].rxtype =
musb_readb(epio, MUSB_RXTYPE);
musb->context.index_regs[i].rxinterval =
musb_readb(epio, MUSB_RXINTERVAL);
musb->context.index_regs[i].rxfunaddr =
musb_read_rxfunaddr(musb_base, i);
musb->context.index_regs[i].rxhubaddr =
musb_read_rxhubaddr(musb_base, i);
musb->context.index_regs[i].rxhubport =
musb_read_rxhubport(musb_base, i);
}
musb->context.index_regs[i].txfunaddr =
musb_read_txfunaddr(musb_base, i);
musb->context.index_regs[i].txhubaddr =
musb_read_txhubaddr(musb_base, i);
musb->context.index_regs[i].txhubport =
musb_read_txhubport(musb_base, i);
musb->context.index_regs[i].rxfunaddr =
musb_read_rxfunaddr(musb_base, i);
musb->context.index_regs[i].rxhubaddr =
musb_read_rxhubaddr(musb_base, i);
musb->context.index_regs[i].rxhubport =
musb_read_rxhubport(musb_base, i);
}
}
@ -2243,11 +2179,9 @@ static void musb_restore_context(struct musb *musb)
void __iomem *ep_target_regs;
void __iomem *epio;
if (is_host_enabled(musb)) {
musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
}
musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
musb_writeb(musb_base, MUSB_POWER, musb->context.power);
musb_writew(musb_base, MUSB_INTRTXE, musb->context.intrtxe);
musb_writew(musb_base, MUSB_INTRRXE, musb->context.intrrxe);
@ -2286,33 +2220,31 @@ static void musb_restore_context(struct musb *musb)
musb->context.index_regs[i].rxfifoadd);
}
if (is_host_enabled(musb)) {
musb_writeb(epio, MUSB_TXTYPE,
musb_writeb(epio, MUSB_TXTYPE,
musb->context.index_regs[i].txtype);
musb_writeb(epio, MUSB_TXINTERVAL,
musb_writeb(epio, MUSB_TXINTERVAL,
musb->context.index_regs[i].txinterval);
musb_writeb(epio, MUSB_RXTYPE,
musb_writeb(epio, MUSB_RXTYPE,
musb->context.index_regs[i].rxtype);
musb_writeb(epio, MUSB_RXINTERVAL,
musb_writeb(epio, MUSB_RXINTERVAL,
musb->context.index_regs[i].rxinterval);
musb_write_txfunaddr(musb_base, i,
musb->context.index_regs[i].rxinterval);
musb_write_txfunaddr(musb_base, i,
musb->context.index_regs[i].txfunaddr);
musb_write_txhubaddr(musb_base, i,
musb_write_txhubaddr(musb_base, i,
musb->context.index_regs[i].txhubaddr);
musb_write_txhubport(musb_base, i,
musb_write_txhubport(musb_base, i,
musb->context.index_regs[i].txhubport);
ep_target_regs =
musb_read_target_reg_base(i, musb_base);
ep_target_regs =
musb_read_target_reg_base(i, musb_base);
musb_write_rxfunaddr(ep_target_regs,
musb_write_rxfunaddr(ep_target_regs,
musb->context.index_regs[i].rxfunaddr);
musb_write_rxhubaddr(ep_target_regs,
musb_write_rxhubaddr(ep_target_regs,
musb->context.index_regs[i].rxhubaddr);
musb_write_rxhubport(ep_target_regs,
musb_write_rxhubport(ep_target_regs,
musb->context.index_regs[i].rxhubport);
}
}
musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
}

5
drivers/usb/musb/musb_core.h
View File

@ -71,10 +71,6 @@ struct musb_ep;
#include <linux/usb/hcd.h>
#include "musb_host.h"
#define is_peripheral_enabled(musb) ((musb)->board_mode != MUSB_HOST)
#define is_host_enabled(musb) ((musb)->board_mode != MUSB_PERIPHERAL)
#define is_otg_enabled(musb) ((musb)->board_mode == MUSB_OTG)
/* NOTE: otg and peripheral-only state machines start at B_IDLE.
* OTG or host-only go to A_IDLE when ID is sensed.
*/
@ -376,7 +372,6 @@ struct musb {
u16 epmask;
u8 nr_endpoints;
u8 board_mode; /* enum musb_mode */
int (*board_set_power)(int state);
u8 min_power; /* vbus for periph, in mA/2 */

26
drivers/usb/musb/musb_dsps.c
View File

@ -137,9 +137,8 @@ static void dsps_musb_enable(struct musb *musb)
dsps_writel(reg_base, wrp->epintr_set, epmask);
dsps_writel(reg_base, wrp->coreintr_set, coremask);
/* Force the DRVVBUS IRQ so we can start polling for ID change. */
if (is_otg_enabled(musb))
dsps_writel(reg_base, wrp->coreintr_set,
(1 << wrp->drvvbus) << wrp->usb_shift);
dsps_writel(reg_base, wrp->coreintr_set,
(1 << wrp->drvvbus) << wrp->usb_shift);
}
/**
@ -200,9 +199,6 @@ static void otg_timer(unsigned long _musb)
MUSB_INTR_VBUSERROR << wrp->usb_shift);
break;
case OTG_STATE_B_IDLE:
if (!is_peripheral_enabled(musb))
break;
devctl = dsps_readb(mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&glue->timer,
@ -223,9 +219,6 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
struct dsps_glue *glue = platform_get_drvdata(pdev);
static unsigned long last_timer;
if (!is_otg_enabled(musb))
return;
if (timeout == 0)
timeout = jiffies + msecs_to_jiffies(3);
@ -293,7 +286,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
* value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
* Also, DRVVBUS pulses for SRP (but not at 5V) ...
*/
if ((usbintr & MUSB_INTR_BABBLE) && is_host_enabled(musb))
if (usbintr & MUSB_INTR_BABBLE)
pr_info("CAUTION: musb: Babble Interrupt Occured\n");
if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
@ -302,8 +295,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
u8 devctl = dsps_readb(mregs, MUSB_DEVCTL);
int err;
err = is_host_enabled(musb) && (musb->int_usb &
MUSB_INTR_VBUSERROR);
err = musb->int_usb & MUSB_INTR_VBUSERROR;
if (err) {
/*
* The Mentor core doesn't debounce VBUS as needed
@ -321,7 +313,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
mod_timer(&glue->timer,
jiffies + wrp->poll_seconds * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (is_host_enabled(musb) && drvvbus) {
} else if (drvvbus) {
musb->is_active = 1;
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
@ -352,7 +344,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
dsps_writel(reg_base, wrp->eoi, 1);
/* Poll for ID change */
if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
if (musb->xceiv->state == OTG_STATE_B_IDLE)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@ -388,8 +380,7 @@ static int dsps_musb_init(struct musb *musb)
goto err0;
}
if (is_host_enabled(musb))
setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
/* Reset the musb */
dsps_writel(reg_base, wrp->control, (1 << wrp->reset));
@ -423,8 +414,7 @@ static int dsps_musb_exit(struct musb *musb)
struct platform_device *pdev = to_platform_device(dev->parent);
struct dsps_glue *glue = platform_get_drvdata(pdev);
if (is_host_enabled(musb))
del_timer_sync(&glue->timer);
del_timer_sync(&glue->timer);
/* Shutdown the on-chip PHY and its PLL. */
if (data->set_phy_power)

87
drivers/usb/musb/musb_gadget.c
View File

@ -1864,8 +1864,7 @@ int __devinit musb_gadget_setup(struct musb *musb)
musb->g.dev.release = musb_gadget_release;
musb->g.name = musb_driver_name;
if (is_otg_enabled(musb))
musb->g.is_otg = 1;
musb->g.is_otg = 1;
musb_g_init_endpoints(musb);
@ -1911,11 +1910,14 @@ static int musb_gadget_start(struct usb_gadget *g,
{
struct musb *musb = gadget_to_musb(g);
struct usb_otg *otg = musb->xceiv->otg;
struct usb_hcd *hcd = musb_to_hcd(musb);
unsigned long flags;
int retval = -EINVAL;
int retval = 0;
if (driver->max_speed < USB_SPEED_HIGH)
goto err0;
if (driver->max_speed < USB_SPEED_HIGH) {
retval = -EINVAL;
goto err;
}
pm_runtime_get_sync(musb->controller);
@ -1929,49 +1931,30 @@ static int musb_gadget_start(struct usb_gadget *g,
otg_set_peripheral(otg, &musb->g);
musb->xceiv->state = OTG_STATE_B_IDLE;
/*
* FIXME this ignores the softconnect flag. Drivers are
* allowed hold the peripheral inactive until for example
* userspace hooks up printer hardware or DSP codecs, so
* hosts only see fully functional devices.
*/
if (!is_otg_enabled(musb))
musb_start(musb);
spin_unlock_irqrestore(&musb->lock, flags);
if (is_otg_enabled(musb)) {
struct usb_hcd *hcd = musb_to_hcd(musb);
dev_dbg(musb->controller, "OTG startup...\n");
/* REVISIT: funcall to other code, which also
* handles power budgeting ... this way also
* ensures HdrcStart is indirectly called.
*/
retval = usb_add_hcd(musb_to_hcd(musb), 0, 0);
if (retval < 0) {
dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
goto err2;
}
if ((musb->xceiv->last_event == USB_EVENT_ID)
&& otg->set_vbus)
otg_set_vbus(otg, 1);
hcd->self.uses_pio_for_control = 1;
/* REVISIT: funcall to other code, which also
* handles power budgeting ... this way also
* ensures HdrcStart is indirectly called.
*/
retval = usb_add_hcd(hcd, 0, 0);
if (retval < 0) {
dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
goto err;
}
if ((musb->xceiv->last_event == USB_EVENT_ID)
&& otg->set_vbus)
otg_set_vbus(otg, 1);
hcd->self.uses_pio_for_control = 1;
if (musb->xceiv->last_event == USB_EVENT_NONE)
pm_runtime_put(musb->controller);
return 0;
err2:
if (!is_otg_enabled(musb))
musb_stop(musb);
err0:
err:
return retval;
}
@ -2049,16 +2032,12 @@ static int musb_gadget_stop(struct usb_gadget *g,
musb_platform_try_idle(musb, 0);
spin_unlock_irqrestore(&musb->lock, flags);
if (is_otg_enabled(musb)) {
usb_remove_hcd(musb_to_hcd(musb));
/* FIXME we need to be able to register another
* gadget driver here and have everything work;
* that currently misbehaves.
*/
}
if (!is_otg_enabled(musb))
musb_stop(musb);
usb_remove_hcd(musb_to_hcd(musb));
/*
* FIXME we need to be able to register another
* gadget driver here and have everything work;
* that currently misbehaves.
*/
pm_runtime_put(musb->controller);
@ -2220,13 +2199,11 @@ __acquires(musb->lock)
if (devctl & MUSB_DEVCTL_BDEVICE) {
musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else if (is_otg_enabled(musb)) {
} else {
musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
} else
WARN_ON(1);
}
/* start with default limits on VBUS power draw */
(void) musb_gadget_vbus_draw(&musb->g,
is_otg_enabled(musb) ? 8 : 100);
(void) musb_gadget_vbus_draw(&musb->g, 8);
}

13
drivers/usb/musb/musb_virthub.c
View File

@ -81,8 +81,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
switch (musb->xceiv->state) {
case OTG_STATE_A_HOST:
musb->xceiv->state = OTG_STATE_A_SUSPEND;
musb->is_active = is_otg_enabled(musb)
&& otg->host->b_hnp_enable;
musb->is_active = otg->host->b_hnp_enable;
if (musb->is_active)
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(
@ -91,8 +90,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
break;
case OTG_STATE_B_HOST:
musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
musb->is_active = is_otg_enabled(musb)
&& otg->host->b_hnp_enable;
musb->is_active = otg->host->b_hnp_enable;
musb_platform_try_idle(musb, 0);
break;
default:
@ -190,8 +188,7 @@ void musb_root_disconnect(struct musb *musb)
switch (musb->xceiv->state) {
case OTG_STATE_A_SUSPEND:
if (is_otg_enabled(musb)
&& otg->host->b_hnp_enable) {
if (otg->host->b_hnp_enable) {
musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
break;
@ -273,7 +270,7 @@ int musb_hub_control(
musb_port_suspend(musb, false);
break;
case USB_PORT_FEAT_POWER:
if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
if (!hcd->self.is_b_host)
musb_platform_set_vbus(musb, 0);
break;
case USB_PORT_FEAT_C_CONNECTION:
@ -369,7 +366,7 @@ int musb_hub_control(
* 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))
if (!hcd->self.is_b_host)
musb_start(musb);
break;
case USB_PORT_FEAT_RESET:

11
drivers/usb/musb/omap2430.c
View File

@ -258,7 +258,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
otg->default_a = true;
musb->xceiv->state = OTG_STATE_A_IDLE;
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
if (musb->gadget_driver) {
pm_runtime_get_sync(dev);
usb_phy_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
@ -281,11 +281,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "VBUS Disconnect\n");
musb->xceiv->last_event = USB_EVENT_NONE;
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver) {
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
if (musb->gadget_driver) {
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->otg->set_vbus)

28
drivers/usb/musb/tusb6010.c
View File

@ -437,14 +437,13 @@ static void musb_do_idle(unsigned long _musb)
if (is_host_active(musb) && (musb->port1_status >> 16))
goto done;
if (is_peripheral_enabled(musb) && !musb->gadget_driver) {
if (!musb->gadget_driver) {
wakeups = 0;
} else {
wakeups = TUSB_PRCM_WHOSTDISCON
| TUSB_PRCM_WBUS
| TUSB_PRCM_WVBUS;
if (is_otg_enabled(musb))
wakeups |= TUSB_PRCM_WID;
wakeups |= TUSB_PRCM_WID;
}
tusb_allow_idle(musb, wakeups);
}
@ -582,21 +581,12 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
*
* Note that if a mini-A cable is plugged in the ID line will stay down as
* the weak ID pull-up is not able to pull the ID up.
*
* REVISIT: It would be possible to add support for changing between host
* and peripheral modes in non-OTG configurations by reconfiguring hardware
* and then setting musb->board_mode. For now, only support OTG mode.
*/
static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
{
void __iomem *tbase = musb->ctrl_base;
u32 otg_stat, phy_otg_ctrl, phy_otg_ena, dev_conf;
if (musb->board_mode != MUSB_OTG) {
ERR("Changing mode currently only supported in OTG mode\n");
return -EINVAL;
}
otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
phy_otg_ctrl = musb_readl(tbase, TUSB_PHY_OTG_CTRL);
phy_otg_ena = musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE);
@ -652,10 +642,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if ((int_src & TUSB_INT_SRC_ID_STATUS_CHNG)) {
int default_a;
if (is_otg_enabled(musb))
default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
else
default_a = is_host_enabled(musb);
default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');
otg->default_a = default_a;
tusb_musb_set_vbus(musb, default_a);
@ -669,8 +656,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if (int_src & TUSB_INT_SRC_VBUS_SENSE_CHNG) {
/* B-dev state machine: no vbus ~= disconnect */
if ((is_otg_enabled(musb) && !otg->default_a)
|| !is_host_enabled(musb)) {
if (!otg->default_a) {
/* ? musb_root_disconnect(musb); */
musb->port1_status &=
~(USB_PORT_STAT_CONNECTION
@ -1119,10 +1105,8 @@ static int tusb_musb_init(struct musb *musb)
}
musb->isr = tusb_musb_interrupt;
if (is_peripheral_enabled(musb)) {
musb->xceiv->set_power = tusb_draw_power;
the_musb = musb;
}
musb->xceiv->set_power = tusb_draw_power;
the_musb = musb;
setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);