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|
#include <freebsd/machine/rtems-bsd-config.h>
#include <rtems/freebsd/machine/rtems-bsd-config.h>
#include <bsp.h>
#ifdef LIBBSP_ARM_LPC3250_BSP_H
#include <bsp/irq.h>
#include <rtems/freebsd/sys/cdefs.h>
#include <rtems/freebsd/sys/stdint.h>
#include <rtems/freebsd/sys/stddef.h>
#include <rtems/freebsd/sys/param.h>
#include <rtems/freebsd/sys/queue.h>
#include <rtems/freebsd/sys/types.h>
#include <rtems/freebsd/sys/systm.h>
#include <rtems/freebsd/sys/kernel.h>
#include <rtems/freebsd/sys/bus.h>
#include <rtems/freebsd/sys/linker_set.h>
#include <rtems/freebsd/sys/module.h>
#include <rtems/freebsd/sys/lock.h>
#include <rtems/freebsd/sys/mutex.h>
#include <rtems/freebsd/sys/condvar.h>
#include <rtems/freebsd/sys/sysctl.h>
#include <rtems/freebsd/sys/sx.h>
#include <rtems/freebsd/sys/unistd.h>
#include <rtems/freebsd/sys/callout.h>
#include <rtems/freebsd/sys/malloc.h>
#include <rtems/freebsd/sys/priv.h>
#include <rtems/freebsd/dev/usb/usb.h>
#include <rtems/freebsd/dev/usb/usbdi.h>
#include <rtems/freebsd/dev/usb/usb_core.h>
#include <rtems/freebsd/dev/usb/usb_busdma.h>
#include <rtems/freebsd/dev/usb/usb_process.h>
#include <rtems/freebsd/dev/usb/usb_util.h>
#include <rtems/freebsd/dev/usb/usb_controller.h>
#include <rtems/freebsd/dev/usb/usb_bus.h>
#include <rtems/freebsd/dev/usb/controller/ohci.h>
typedef struct
{
uint16_t VendorID;
uint16_t ProductID;
uint16_t VersionID;
} isp130x_PhyDetails_Typ;
static void
i2c_wait_for_receive_fifo_not_empty(void)
{
while ((OTGI2CSTS & OTG_I2C_RFE) != 0) {
/* Wait */
}
}
static uint8_t
isp1301_read(uint8_t reg)
{
OTGI2CCTL = OTG_I2C_RESET;
OTGI2CTX = ISP1301_I2C_ADDR | OTG_I2C_START;
OTGI2CTX = reg;
OTGI2CTX = ISP1301_I2C_ADDR | OTG_I2C_READ | OTG_I2C_START;
OTGI2CTX = OTG_I2C_STOP;
i2c_wait_for_receive_fifo_not_empty();
return (uint8_t) OTGI2CRX;
}
static void
i2c_wait_for_transaction_done(void)
{
while ((OTGI2CSTS & OTG_I2C_TDI) == 0) {
/* Wait */
}
OTGI2CSTS = OTG_I2C_TDI;
}
static void
isp1301_write(uint8_t reg, uint8_t val)
{
OTGI2CCTL = OTG_I2C_RESET;
OTGI2CTX = ISP1301_I2C_ADDR | OTG_I2C_START;
OTGI2CTX = reg;
OTGI2CTX = val | OTG_I2C_STOP;
i2c_wait_for_transaction_done();
}
static void
isp1301_dump(void)
{
BSD_PRINTF(
"ISP1301: mc1 %02x, mc2 %02x, otgctrl %02x, otgsts %02x, isrc %02x, iltch %02x, ienl %02x, ienh %02x\n",
isp1301_read(ISP1301_MODE_CONTROL_1),
isp1301_read(ISP1301_MODE_CONTROL_2),
isp1301_read(ISP1301_OTG_CONTROL_1),
isp1301_read(ISP1301_OTG_STATUS),
isp1301_read(ISP1301_I2C_INTERRUPT_SOURCE),
isp1301_read(ISP1301_I2C_INTERRUPT_LATCH),
isp1301_read(ISP1301_I2C_INTERRUPT_FALLING),
isp1301_read(ISP1301_I2C_INTERRUPT_RISING)
);
}
static isp130x_PhyDetails_Typ
isp130x_GetPhyDetails(void)
{
isp130x_PhyDetails_Typ PhyDetails;
PhyDetails.VendorID = (uint16_t)((isp1301_read(ISP1301_I2C_VENDOR_ID_HIGH) << 8) |
isp1301_read(ISP1301_I2C_VENDOR_ID_LOW));
PhyDetails.ProductID = (uint16_t)((isp1301_read(ISP1301_I2C_PRODUCT_ID_HIGH) << 8) |
isp1301_read(ISP1301_I2C_PRODUCT_ID_LOW));
PhyDetails.VersionID = (uint16_t)((isp1301_read(ISP1301_I2C_VERSION_ID_HIGH) << 8) |
isp1301_read(ISP1301_I2C_VERSION_ID_LOW));
return PhyDetails;
}
static void
isp1301_configure(void)
{
isp130x_PhyDetails_Typ PhyDetails = isp130x_GetPhyDetails();
BSD_PRINTF("ISP130x: vendor 0x%04x, product 0x%04x, version 0x%04x\n",
PhyDetails.VendorID,
PhyDetails.ProductID,
PhyDetails.VersionID);
isp1301_write(ISP1301_MODE_CONTROL_1_CLEAR, 0xff);
isp1301_write(ISP1301_MODE_CONTROL_1_SET, MC1_SPEED_REG);
isp1301_write(ISP1301_MODE_CONTROL_2_CLEAR, 0xff);
switch (PhyDetails.ProductID)
{
case ISP1301_PRODUCT_ID:
isp1301_write(ISP1301_MODE_CONTROL_2_SET, MC2_BI_DI |
MC2_PSW_EN |
MC2_SPD_SUSP_CTRL);
break;
case ISP1302_PRODUCT_ID:
// Do not set 'SPD_SUSP_CTRL' bit as per ISP1301 this bit is reserved in
// ISP1302, setting it will cause problems.
isp1301_write(ISP1301_MODE_CONTROL_2_SET, MC2_BI_DI |
MC2_PSW_EN);
// ISP1302 has an additonal register we should initialise it..
isp1301_write(ISP1302_MISC_CONTROL_CLEAR, 0xff);
isp1301_write(ISP1302_MISC_CONTROL_SET, MISC_UART_2V8_EN);
break;
default:
break;
}
isp1301_write(ISP1301_OTG_CONTROL_CLEAR, 0xff);
isp1301_write(ISP1301_MODE_CONTROL_1_SET, MC1_DAT_SE0);
isp1301_write(ISP1301_OTG_CONTROL_SET, OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN);
isp1301_write(ISP1301_I2C_INTERRUPT_LATCH_CLEAR, 0xff);
isp1301_write(ISP1301_I2C_INTERRUPT_FALLING_CLEAR, 0xff);
isp1301_write(ISP1301_I2C_INTERRUPT_RISING_CLEAR, 0xff);
}
static void
isp1301_vbus_on(void)
{
isp1301_write(ISP1301_OTG_CONTROL_SET, OTG1_VBUS_DRV);
}
static int
ohci_lpc32xx_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_lpc32xx_resume(device_t self)
{
ohci_softc_t *e = device_get_softc(self);
ohci_resume(e);
bus_generic_resume(self);
return (0);
}
static int
ohci_lpc32xx_probe(device_t self)
{
device_set_desc(self, "LPC3250 OHCI controller");
return (0);
}
static int
ohci_lpc32xx_detach(device_t self)
{
ohci_softc_t *e = device_get_softc(self);
BSD_PRINTF("FIXME\n");
return (0);
}
static int
ohci_lpc32xx_attach(device_t self)
{
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));
/* 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, "LPC3250 OHCI bus");
snprintf(e->sc_vendor, sizeof(e->sc_vendor), "NXP");
/* Register space */
e->sc_io_tag = 0U;
e->sc_io_hdl = OTGUSB_BASE;
e->sc_io_size = 0x5cU;
/* Enable USB PLL */
USBDIVCTRL = 0xc;
USBCTRL = USBCLK_SLAVE_HCLK_EN
| USBCLK_PC_BUS_KEEPER
| USBCLK_CLKEN1
| USBCLK_POWER_UP
| USBCLK_P_2
| USBCLK_N_1
| (191U << USBCLK_M_SHIFT);
while ((USBCTRL & USBCLK_PLL_LOCK) == 0) {
/* Wait */
}
USBCTRL |= USBCLK_CLKEN2;
/* Enable USB host and AHB clocks */
OTGCLKCTRL = 0x1c;
while ((OTGCLKSTAT & 0x1c) != 0x1c) {
/* Wait */
}
isp1301_configure();
USBCTRL |= USBCLK_HOST_NEED_CLK_EN;
OTGCLKCTRL = 0x1d;
while ((OTGCLKSTAT & 0x1d) != 0x1d) {
/* Wait */
}
/* Set OTG Status and Control Register */
OTGSTAT = 0x1;
isp1301_vbus_on();
/* Install interrupt handler */
sc = rtems_interrupt_server_handler_install(
RTEMS_ID_NONE,
IRQ_USB_HOST,
"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_lpc32xx_detach(self);
return (ENXIO);
}
static device_method_t ohci_methods [] = {
/* Device interface */
DEVMETHOD(device_probe, ohci_lpc32xx_probe),
DEVMETHOD(device_attach, ohci_lpc32xx_attach),
DEVMETHOD(device_detach, ohci_lpc32xx_detach),
DEVMETHOD(device_suspend, ohci_lpc32xx_suspend),
DEVMETHOD(device_resume, ohci_lpc32xx_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_LPC3250_BSP_H */
|
