static int
msm72k_set_halt(struct usb_ep *_ep, int value)
{
struct msm_endpoint *ept = to_msm_endpoint(_ep);
struct usb_info *ui = ept->ui;
unsigned int in = ept->flags & EPT_FLAG_IN;
unsigned int n;
unsigned long flags;
spin_lock_irqsave(&ui->lock, flags);
n = readl(USB_ENDPTCTRL(ept->num));
if (in) {
if (value)
n |= CTRL_TXS;
else {
n &= ~CTRL_TXS;
n |= CTRL_TXR;
}
} else {
if (value)
n |= CTRL_RXS;
else {
n &= ~CTRL_RXS;
n |= CTRL_RXR;
}
}
writel(n, USB_ENDPTCTRL(ept->num));
spin_unlock_irqrestore(&ui->lock, flags);
return 0;
}
static void mxc_ep0_stall(void)
{
u32 temp;
temp = readl(USB_ENDPTCTRL(0));
temp |= EPCTRL_TX_EP_STALL | EPCTRL_RX_EP_STALL;
writel(temp, USB_ENDPTCTRL(0));
}
static void usb_ept_enable(struct msm_endpoint *ept, int yes,
unsigned char ep_type)
{
struct usb_info *ui = ept->ui;
int in = ept->flags & EPT_FLAG_IN;
unsigned n;
n = readl(USB_ENDPTCTRL(ept->num));
if (in) {
if (yes) {
n = (n & (~CTRL_TXT_MASK)) |
(ep_type << CTRL_TXT_EP_TYPE_SHIFT);
n |= CTRL_TXE | CTRL_TXR;
} else
n &= (~CTRL_TXE);
} else {
if (yes) {
n = (n & (~CTRL_RXT_MASK)) |
(ep_type << CTRL_RXT_EP_TYPE_SHIFT);
n |= CTRL_RXE | CTRL_RXR;
} else
n &= ~(CTRL_RXE);
}
writel(n, USB_ENDPTCTRL(ept->num));
dev_dbg(&ui->pdev->dev, "ept %d %s %s\n",
ept->num, in ? "in" : "out", yes ? "enabled" : "disabled");
}
static void mxc_ep_destroy(u8 ep_num, u8 dir)
{
u32 epctrl = 0;
epctrl = readl(USB_ENDPTCTRL(ep_num));
if (dir)
epctrl &= ~EPCTRL_TX_ENABLE;
else
epctrl &= ~EPCTRL_RX_ENABLE;
writel(epctrl, USB_ENDPTCTRL(ep_num));
}
static void mxc_ep_setup(u8 ep_num, u8 dir, u8 ep_type)
{
u32 epctrl = 0;
epctrl = readl(USB_ENDPTCTRL(ep_num));
if (dir) {
if (ep_num)
epctrl |= EPCTRL_TX_DATA_TOGGLE_RST;
epctrl |= EPCTRL_TX_ENABLE;
epctrl |= ((u32)(ep_type) << EPCTRL_TX_EP_TYPE_SHIFT);
} else {
if (ep_num)
epctrl |= EPCTRL_RX_DATA_TOGGLE_RST;
epctrl |= EPCTRL_RX_ENABLE;
epctrl |= ((u32)(ep_type) << EPCTRL_RX_EP_TYPE_SHIFT);
}
writel(epctrl, USB_ENDPTCTRL(ep_num));
}
static int usb_ep_get_stall(struct msm_endpoint *ept)
{
unsigned int n;
struct usb_info *ui = ept->ui;
n = readl(USB_ENDPTCTRL(ept->num));
if (ept->flags & EPT_FLAG_IN)
return (CTRL_TXS & n) ? 1 : 0;
else
return (CTRL_RXS & n) ? 1 : 0;
}
static void endpoint_enable(struct udc_endpoint *ept, unsigned yes)
{
unsigned n = readl(USB_ENDPTCTRL(ept->num));
if (yes) {
if (ept->in) {
n |= (CTRL_TXE | CTRL_TXR | CTRL_TXT_BULK);
} else {
n |= (CTRL_RXE | CTRL_RXR | CTRL_RXT_BULK);
}
if (ept->num != 0) {
/* XXX should be more dynamic... */
if (usb_highspeed) {
ept->head->config =
CONFIG_MAX_PKT(512) | CONFIG_ZLT;
} else {
ept->head->config =
CONFIG_MAX_PKT(64) | CONFIG_ZLT;
}
}
}
writel(n, USB_ENDPTCTRL(ept->num));
}
static irqreturn_t usb_interrupt(int irq, void *data)
{
struct usb_info *ui = data;
unsigned n;
n = readl(USB_USBSTS);
writel(n, USB_USBSTS);
/* somehow we got an IRQ while in the reset sequence: ignore it */
if (ui->running == 0)
return IRQ_HANDLED;
if (n & STS_PCI) {
switch (readl(USB_PORTSC) & PORTSC_PSPD_MASK) {
case PORTSC_PSPD_FS:
INFO("msm72k_udc: portchange USB_SPEED_FULL\n");
ui->gadget.speed = USB_SPEED_FULL;
break;
case PORTSC_PSPD_LS:
INFO("msm72k_udc: portchange USB_SPEED_LOW\n");
ui->gadget.speed = USB_SPEED_LOW;
break;
case PORTSC_PSPD_HS:
INFO("msm72k_udc: portchange USB_SPEED_HIGH\n");
ui->gadget.speed = USB_SPEED_HIGH;
break;
}
}
if (n & STS_URI) {
INFO("msm72k_udc: reset\n");
writel(readl(USB_ENDPTSETUPSTAT), USB_ENDPTSETUPSTAT);
writel(readl(USB_ENDPTCOMPLETE), USB_ENDPTCOMPLETE);
writel(0xffffffff, USB_ENDPTFLUSH);
writel(0, USB_ENDPTCTRL(1));
if (ui->online != 0) {
/* marking us offline will cause ept queue attempts
** to fail
*/
ui->online = 0;
flush_all_endpoints(ui);
/* XXX: we can't seem to detect going offline,
* XXX: so deconfigure on reset for the time being
*/
if (ui->driver) {
printk(KERN_INFO "usb: notify offline\n");
ui->driver->disconnect(&ui->gadget);
}
}
}
if (n & STS_SLI)
INFO("msm72k_udc: suspend\n");
if (n & STS_UI) {
n = readl(USB_ENDPTSETUPSTAT);
if (n & EPT_RX(0))
handle_setup(ui);
n = readl(USB_ENDPTCOMPLETE);
writel(n, USB_ENDPTCOMPLETE);
while (n) {
unsigned bit = __ffs(n);
handle_endpoint(ui, bit);
n = n & (~(1 << bit));
}
}
return IRQ_HANDLED;
}
static void ep0_setup_stall(struct usb_info *ui)
{
writel((1<<16) | (1<<0), USB_ENDPTCTRL(0));
}
static void usb_ept_enable(struct msm_endpoint *ept, int yes,
unsigned char ep_type)
{
struct usb_info *ui = ept->ui;
int in = ept->flags & EPT_FLAG_IN;
unsigned n;
n = readl(USB_ENDPTCTRL(ept->num));
if (in) {
n = (n & (~CTRL_TXT_MASK));
if (yes) {
n |= CTRL_TXE | CTRL_TXR;
} else {
n &= (~CTRL_TXE);
}
if (yes) {
switch (ep_type) {
case USB_ENDPOINT_XFER_BULK:
n |= CTRL_TXT_BULK;
break;
case USB_ENDPOINT_XFER_INT:
n |= CTRL_TXT_INT;
break;
case USB_ENDPOINT_XFER_ISOC:
n |= CTRL_TXT_ISOCH;
break;
default:
pr_err("%s: unsupported ep_type %d for %s\n",
__func__, ep_type, ept->ep.name);
break;
}
}
} else {
n = (n & (~CTRL_RXT_MASK));
if (yes) {
n |= CTRL_RXE | CTRL_RXR;
} else {
n &= ~(CTRL_RXE);
}
if (yes) {
switch (ep_type) {
case USB_ENDPOINT_XFER_BULK:
n |= CTRL_RXT_BULK;
break;
case USB_ENDPOINT_XFER_INT:
n |= CTRL_RXT_INT;
break;
case USB_ENDPOINT_XFER_ISOC:
n |= CTRL_RXT_ISOCH;
break;
default:
pr_err("%s: unsupported ep_type %d for %s\n",
__func__, ep_type, ept->ep.name);
break;
}
}
}
writel(n, USB_ENDPTCTRL(ept->num));
#if 0
INFO("ept %d %s %s\n",
ept->num, in ? "in" : "out", yes ? "enabled" : "disabled");
#endif
}
