static int
isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
{
struct isp1301 *isp = container_of(otg, struct isp1301, otg);
if (!otg || isp != the_transceiver)
return -ENODEV;
if (!gadget) {
OTG_IRQ_EN_REG = 0;
if (!isp->otg.default_a)
enable_vbus_draw(isp, 0);
usb_gadget_vbus_disconnect(isp->otg.gadget);
isp->otg.gadget = 0;
power_down(isp);
return 0;
}
#ifdef CONFIG_USB_OTG
isp->otg.gadget = gadget;
dev_dbg(&isp->client.dev, "registered gadget\n");
/* gadget driver may be suspended until vbus_connect () */
if (isp->otg.host)
return isp1301_otg_enable(isp);
return 0;
#elif !defined(CONFIG_USB_OHCI_HCD) && !defined(CONFIG_USB_OHCI_HCD_MODULE)
isp->otg.gadget = gadget;
// FIXME update its refcount
OTG_CTRL_REG = (OTG_CTRL_REG & OTG_CTRL_MASK
& ~(OTG_XCEIV_OUTPUTS|OTG_CTRL_BITS))
| OTG_ID;
power_up(isp);
isp->otg.state = OTG_STATE_B_IDLE;
if (machine_is_omap_h2())
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
INTR_SESS_VLD);
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
INTR_VBUS_VLD);
dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
dump_regs(isp, __func__);
/* If this has a Mini-AB connector, this mode is highly
* nonstandard ... but can be handy for testing, so long
* as you don't plug a Mini-A cable into the jack.
*/
if (isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE) & INTR_VBUS_VLD)
b_peripheral(isp);
return 0;
#else
dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n");
return -EINVAL;
#endif
}
/* add or disable the host device+driver */
static int
isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
{
struct isp1301 *isp = container_of(otg, struct isp1301, otg);
if (!otg || isp != the_transceiver)
return -ENODEV;
if (!host) {
omap_writew(0, OTG_IRQ_EN);
power_down(isp);
isp->otg.host = NULL;
return 0;
}
#ifdef CONFIG_USB_OTG
isp->otg.host = host;
dev_dbg(&isp->client->dev, "registered host\n");
host_suspend(isp);
if (isp->otg.gadget)
return isp1301_otg_enable(isp);
return 0;
#elif !defined(CONFIG_USB_GADGET_OMAP)
// FIXME update its refcount
isp->otg.host = host;
power_up(isp);
if (machine_is_omap_h2())
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
dev_info(&isp->client->dev, "A-Host sessions ok\n");
isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
INTR_ID_GND);
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
INTR_ID_GND);
/* If this has a Mini-AB connector, this mode is highly
* nonstandard ... but can be handy for testing, especially with
* the Mini-A end of an OTG cable. (Or something nonstandard
* like MiniB-to-StandardB, maybe built with a gender mender.)
*/
isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_VBUS_DRV);
dump_regs(isp, __func__);
return 0;
#else
dev_dbg(&isp->client->dev, "host sessions not allowed\n");
return -EINVAL;
#endif
}
