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/*
* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <bsp.h>
#ifdef LIBBSP_ARM_LPC24XX_BSP_H
#include <bsp/irq.h>
#include <bsp/io.h>
#include <bsp/lpc24xx.h>
#include <sys/cdefs.h>
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <rtems/bsd/sys/param.h>
#include <sys/queue.h>
#include <rtems/bsd/sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/linker_set.h>
#include <sys/module.h>
#include <rtems/bsd/sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <rtems/bsd/sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_busdma.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/usb_util.h>
#include <dev/usb/usb_controller.h>
#include <dev/usb/usb_bus.h>
#include <dev/usb/controller/ohci.h>
static device_probe_t ohci_lpc24xx_probe;
static device_attach_t ohci_lpc24xx_attach;
static device_detach_t ohci_lpc24xx_detach;
static device_suspend_t ohci_lpc24xx_suspend;
static device_resume_t ohci_lpc24xx_resume;
static int
ohci_lpc24xx_suspend(device_t self)
{
ohci_softc_t *e = device_get_softc(self);
int eno = bus_generic_suspend(self);
if (eno != 0) {
return (eno);
}
ohci_suspend(e);
return (0);
}
static int
ohci_lpc24xx_resume(device_t self)
{
ohci_softc_t *e = device_get_softc(self);
ohci_resume(e);
bus_generic_resume(self);
return (0);
}
static int
ohci_lpc24xx_probe(device_t self)
{
device_set_desc(self, "LPC24XX OHCI controller");
return (0);
}
static int
ohci_lpc24xx_attach(device_t self)
{
static const lpc24xx_pin_range pins [] = {
LPC24XX_PIN_USB_D_PLUS_1,
LPC24XX_PIN_USB_D_MINUS_1,
LPC24XX_PIN_USB_PPWR_1,
LPC24XX_PIN_TERMINAL
};
rtems_status_code sc = RTEMS_SUCCESSFUL;
ohci_softc_t *e = device_get_softc(self);
usb_error_t ue = USB_ERR_NORMAL_COMPLETION;
int eno = 0;
memset(e, 0, sizeof(*e));
BSD_PRINTF("XXX\n");
/* Initialize some bus fields */
e->sc_bus.parent = self;
e->sc_bus.devices = e->sc_devices;
e->sc_bus.devices_max = OHCI_MAX_DEVICES;
/* Get all DMA memory */
if (usb_bus_mem_alloc_all(&e->sc_bus, USB_GET_DMA_TAG(self), &ohci_iterate_hw_softc)) {
return (ENOMEM);
}
e->sc_dev = self;
/* Child device */
e->sc_bus.bdev = device_add_child(self, "usbus", -1);
if (e->sc_bus.bdev == NULL) {
device_printf(self, "Could not add USB device\n");
goto error;
}
device_set_ivars(e->sc_bus.bdev, &e->sc_bus);
device_set_desc(e->sc_bus.bdev, "LPC24XX OHCI bus");
snprintf(e->sc_vendor, sizeof(e->sc_vendor), "NXP");
/* Register space */
e->sc_io_tag = 0U;
e->sc_io_hdl = USBHC_BASE_ADDR;
e->sc_io_size = 0x5cU;
/* Enable USB module */
sc = lpc24xx_module_enable(LPC24XX_MODULE_USB, LPC24XX_MODULE_PCLK_DEFAULT);
BSD_ASSERT_SC(sc);
/* Enable USB host and AHB clocks */
OTG_CLK_CTRL = 0x19;
while ((OTG_CLK_STAT & 0x19) != 0x19) {
/* Wait */
}
/* Set OTG Status and Control Register */
OTG_STAT_CTRL = 0x3;
/* Configure IO pins */
sc = lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
BSD_ASSERT_SC(sc);
/* Install interrupt handler */
sc = rtems_interrupt_server_handler_install(
RTEMS_ID_NONE,
LPC24XX_IRQ_USB,
"USB",
RTEMS_INTERRUPT_UNIQUE,
(rtems_interrupt_handler) ohci_interrupt,
e
);
BSD_ASSERT_SC(sc);
/* OHCI intitialization */
ue = ohci_init(e);
if (ue != USB_ERR_NORMAL_COMPLETION) {
goto error;
}
/* Probe and attach child */
eno = device_probe_and_attach(e->sc_bus.bdev);
if (eno != 0) {
goto error;
}
return (0);
error:
ohci_lpc24xx_detach(self);
return (ENXIO);
}
static int
ohci_lpc24xx_detach(device_t self)
{
ohci_softc_t *e = device_get_softc(self);
BSD_PRINTF("XXX\n");
return (0);
}
static device_method_t ohci_methods [] = {
/* Device interface */
DEVMETHOD(device_probe, ohci_lpc24xx_probe),
DEVMETHOD(device_attach, ohci_lpc24xx_attach),
DEVMETHOD(device_detach, ohci_lpc24xx_detach),
DEVMETHOD(device_suspend, ohci_lpc24xx_suspend),
DEVMETHOD(device_resume, ohci_lpc24xx_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
{0, 0}
};
static driver_t ohci_driver = {
.name = "ohci",
.methods = ohci_methods,
.size = sizeof(struct ohci_softc)
};
static devclass_t ohci_devclass;
DRIVER_MODULE(ohci, nexus, ohci_driver, ohci_devclass, 0, 0);
MODULE_DEPEND(ohci, usb, 1, 1, 1);
#endif /* LIBBSP_ARM_LPC24XX_BSP_H */
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