[rtems-libbsd commit] saf1761_otg: Port to RTEMS.
Sebastian Huber
sebh at rtems.org
Fri Nov 10 13:22:23 UTC 2017
Module: rtems-libbsd
Branch: master
Commit: 589220752bd4b0a7f8a97e372010bd0c5cfc3fc2
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=589220752bd4b0a7f8a97e372010bd0c5cfc3fc2
Author: Christian Mauderer <Christian.Mauderer at embedded-brains.de>
Date: Tue Nov 7 15:15:38 2017 +0100
saf1761_otg: Port to RTEMS.
---
freebsd/sys/dev/usb/controller/saf1761_otg.c | 54 +++++++++++++++++++++++-
freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c | 34 ++++++++++++++-
libbsd.py | 4 ++
libbsd_waf.py | 2 +
rtemsbsd/include/machine/rtems-bsd-nexus-bus.h | 21 +++++++++
5 files changed, 111 insertions(+), 4 deletions(-)
diff --git a/freebsd/sys/dev/usb/controller/saf1761_otg.c b/freebsd/sys/dev/usb/controller/saf1761_otg.c
index 3ce693b..f9d28a6 100644
--- a/freebsd/sys/dev/usb/controller/saf1761_otg.c
+++ b/freebsd/sys/dev/usb/controller/saf1761_otg.c
@@ -44,14 +44,14 @@
#else
#include <sys/stdint.h>
#include <sys/stddef.h>
-#include <rtems/bsd/sys/param.h>
+#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
-#include <rtems/bsd/sys/lock.h>
+#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
@@ -82,6 +82,13 @@
#include <dev/usb/controller/saf1761_otg.h>
#include <dev/usb/controller/saf1761_otg_reg.h>
+#ifdef __rtems__
+#include <rtems.h>
+#include <bsp.h>
+#ifdef LIBBSP_ARM_ATSAM_BSP_H
+#include <bsp/pin-config.h>
+#endif /* LIBBSP_ARM_ATSAM_BSP_H */
+#endif /* __rtems__ */
#define SAF1761_OTG_BUS2SC(bus) \
((struct saf1761_otg_softc *)(((uint8_t *)(bus)) - \
@@ -518,7 +525,29 @@ saf1761_host_bulk_data_rx(struct saf1761_otg_softc *sc, struct saf1761_otg_td *t
DPRINTFN(5, "STATUS=0x%08x\n", status);
if (status & SOTG_PTD_DW3_ACTIVE) {
+#ifndef __rtems__
goto busy;
+#else /* __rtems__ */
+ temp = saf1761_peek_host_status_le_4(sc,
+ pdt_addr + SOTG_PTD_DW0);
+ if (temp & SOTG_PTD_DW0_VALID) {
+ goto busy;
+ } else {
+ status = saf1761_peek_host_status_le_4(sc,
+ pdt_addr + SOTG_PTD_DW3);
+
+ /* check if still active */
+ if (status & SOTG_PTD_DW3_ACTIVE) {
+ saf1761_host_channel_free(sc, td);
+ goto retry;
+ } else if (status & SOTG_PTD_DW3_HALTED) {
+ if (!(status & SOTG_PTD_DW3_ERRORS))
+ td->error_stall = 1;
+ td->error_any = 1;
+ goto complete;
+ }
+ }
+#endif /* __rtems__ */
} else if (status & SOTG_PTD_DW3_HALTED) {
if (!(status & SOTG_PTD_DW3_ERRORS))
td->error_stall = 1;
@@ -562,6 +591,9 @@ saf1761_host_bulk_data_rx(struct saf1761_otg_softc *sc, struct saf1761_otg_td *t
}
saf1761_host_channel_free(sc, td);
}
+#ifdef __rtems__
+retry:
+#endif /* __rtems__ */
if (saf1761_host_channel_alloc(sc, td))
goto busy;
@@ -1591,6 +1623,10 @@ saf1761_otg_filter_interrupt(void *arg)
(void) SAF1761_READ_LE_4(sc, SOTG_INT_PTD_DONE_PTD);
(void) SAF1761_READ_LE_4(sc, SOTG_ISO_PTD_DONE_PTD);
+#ifdef __rtems__
+ DPRINTFN(9, "HCINTERRUPT=0x%08x DCINTERRUPT=0x%08x\n", hcstat, status);
+
+#endif /* __rtems__ */
if (status & SOTG_DCINTERRUPT_IEPSOF) {
if ((sc->sc_host_async_busy_map[1] | sc->sc_host_async_busy_map[0] |
sc->sc_host_intr_busy_map[1] | sc->sc_host_intr_busy_map[0] |
@@ -1623,6 +1659,15 @@ saf1761_otg_filter_interrupt(void *arg)
USB_BUS_SPIN_UNLOCK(&sc->sc_bus);
+#ifdef __rtems__
+#ifdef LIBBSP_ARM_ATSAM_BSP_H
+ const Pio *saf_irq_pio = PIOC;
+ /* The PIOC is used only by the SAF1761. So we can just reset the status
+ * without any further handling. */
+ (void) saf_irq_pio->PIO_ISR;
+#endif /* LIBBSP_ARM_ATSAM_BSP_H */
+
+#endif /* __rtems__ */
return (retval);
}
@@ -2448,10 +2493,15 @@ saf1761_otg_init(struct saf1761_otg_softc *sc)
*/
SAF1761_WRITE_LE_4(sc, SOTG_CTRL_SET_CLR,
SOTG_CTRL_CLR(0xFFFF));
+#ifdef __rtems__
+ SAF1761_WRITE_LE_4(sc, SOTG_CTRL_SET_CLR,
+ SOTG_CTRL_SET(SOTG_CTRL_SEL_CP_EXT | SOTG_CTRL_VBUS_DRV));
+#else /* __rtems__ */
SAF1761_WRITE_LE_4(sc, SOTG_CTRL_SET_CLR,
SOTG_CTRL_SET(SOTG_CTRL_SW_SEL_HC_DC |
SOTG_CTRL_BDIS_ACON_EN | SOTG_CTRL_SEL_CP_EXT |
SOTG_CTRL_VBUS_DRV));
+#endif /* __rtems__ */
/* disable device address */
SAF1761_WRITE_LE_4(sc, SOTG_ADDRESS, 0);
diff --git a/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c b/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c
index c1e8ff8..32b6b92 100644
--- a/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c
+++ b/freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c
@@ -36,14 +36,14 @@
#else
#include <sys/stdint.h>
#include <sys/stddef.h>
-#include <rtems/bsd/sys/param.h>
+#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
-#include <rtems/bsd/sys/lock.h>
+#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
@@ -77,6 +77,13 @@
#include <dev/usb/controller/saf1761_otg.h>
#include <dev/usb/controller/saf1761_otg_reg.h>
+#ifdef __rtems__
+#include <rtems.h>
+#include <bsp.h>
+#ifdef LIBBSP_ARM_ATSAM_BSP_H
+#include <bsp/pin-config.h>
+#endif /* LIBBSP_ARM_ATSAM_BSP_H */
+#endif /* __rtems__ */
static device_probe_t saf1761_otg_fdt_probe;
static device_attach_t saf1761_otg_fdt_attach;
@@ -102,17 +109,26 @@ static driver_t saf1761_otg_driver = {
static devclass_t saf1761_otg_devclass;
+#ifndef __rtems__
DRIVER_MODULE(saf1761otg, simplebus, saf1761_otg_driver, saf1761_otg_devclass, 0, 0);
+#else /* __rtems__ */
+DRIVER_MODULE(saf1761otg, nexus, saf1761_otg_driver, saf1761_otg_devclass, 0, 0);
+#endif /* __rtems__ */
MODULE_DEPEND(saf1761otg, usb, 1, 1, 1);
static int
saf1761_otg_fdt_probe(device_t dev)
{
+#ifndef __rtems__
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "nxp,usb-isp1761"))
return (ENXIO);
+#else /* __rtems__ */
+ if (device_get_unit(dev) != 0)
+ return (ENXIO);
+#endif /* __rtems__ */
device_set_desc(dev, "ISP1761/SAF1761 DCI USB 2.0 Device Controller");
@@ -127,6 +143,7 @@ saf1761_otg_fdt_attach(device_t dev)
int err;
int rid;
+#ifndef __rtems__
/* get configuration from FDT */
/* get bus-width, if any */
@@ -171,6 +188,10 @@ saf1761_otg_fdt_attach(device_t dev)
sc->sc_interrupt_cfg |= SOTG_INTERRUPT_CFG_INTLVL;
sc->sc_hw_mode |= SOTG_HW_MODE_CTRL_INTR_LEVEL;
}
+#else /* __rtems__ */
+ /* set 16-bit data bus */
+ sc->sc_hw_mode = 0;
+#endif /* __rtems__ */
/* initialise some bus fields */
sc->sc_bus.parent = dev;
@@ -213,6 +234,15 @@ saf1761_otg_fdt_attach(device_t dev)
device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
+#ifdef __rtems__
+#ifdef LIBBSP_ARM_ATSAM_BSP_H
+ const Pin saf_irq = {PIO_PC16, PIOC, ID_PIOC, PIO_INPUT, PIO_PULLUP | PIO_IT_LOW_LEVEL};
+ /* Activate pin interrupt. Add a default handler that just clears the
+ * status. */
+ PIO_Configure(&saf_irq, 1);
+ PIO_EnableIt(&saf_irq);
+#endif /* LIBBSP_ARM_ATSAM_BSP_H */
+#endif /* __rtems__ */
err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE,
&saf1761_otg_filter_interrupt, &saf1761_otg_interrupt, sc, &sc->sc_intr_hdl);
if (err) {
diff --git a/libbsd.py b/libbsd.py
index a69c118..a954932 100644
--- a/libbsd.py
+++ b/libbsd.py
@@ -700,6 +700,8 @@ def dev_usb_controller(mm):
'sys/dev/usb/controller/xhcireg.h',
'sys/dev/usb/controller/dwc_otg.h',
'sys/dev/usb/controller/dwc_otgreg.h',
+ 'sys/dev/usb/controller/saf1761_otg.h',
+ 'sys/dev/usb/controller/saf1761_otg_reg.h',
]
)
mod.addKernelSpaceSourceFiles(
@@ -708,6 +710,8 @@ def dev_usb_controller(mm):
'sys/dev/usb/controller/ehci.c',
'sys/dev/usb/controller/usb_controller.c',
'sys/dev/usb/controller/dwc_otg.c',
+ 'sys/dev/usb/controller/saf1761_otg.c',
+ 'sys/dev/usb/controller/saf1761_otg_fdt.c',
],
mm.generator['source']()
)
diff --git a/libbsd_waf.py b/libbsd_waf.py
index 74da713..dcf06d3 100644
--- a/libbsd_waf.py
+++ b/libbsd_waf.py
@@ -1876,6 +1876,8 @@ def build(bld):
'freebsd/sys/dev/usb/controller/ehci.c',
'freebsd/sys/dev/usb/controller/musb_otg.c',
'freebsd/sys/dev/usb/controller/ohci.c',
+ 'freebsd/sys/dev/usb/controller/saf1761_otg.c',
+ 'freebsd/sys/dev/usb/controller/saf1761_otg_fdt.c',
'freebsd/sys/dev/usb/controller/usb_controller.c',
'freebsd/sys/dev/usb/input/atp.c',
'freebsd/sys/dev/usb/input/uep.c',
diff --git a/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h b/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
index 42fa9b6..251309a 100644
--- a/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
+++ b/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
@@ -255,6 +255,27 @@ extern "C" {
SYSINIT_DRIVER_REFERENCE(umass, uhub)
#endif /* RTEMS_BSD_DRIVER_USB_MASS */
+/*
+ * USB SAF1761 host controller driver.
+ */
+#if !defined(RTEMS_BSD_DRIVER_USB_SAF1761_OTG)
+ #define RTEMS_BSD_DRIVER_USB_SAF1761_OTG(_base, _irq) \
+ static const rtems_bsd_device_resource usb_saf1761_otg_res[] = { \
+ { \
+ .type = RTEMS_BSD_RES_MEMORY, \
+ .start_request = 0, \
+ .start_actual = (_base) \
+ }, { \
+ .type = RTEMS_BSD_RES_IRQ, \
+ .start_request = 0, \
+ .start_actual = (_irq) \
+ } \
+ }; \
+ RTEMS_BSD_DEFINE_NEXUS_DEVICE(saf1761otg, 0, \
+ RTEMS_ARRAY_SIZE(usb_saf1761_otg_res), \
+ &usb_saf1761_otg_res[0])
+#endif /* RTEMS_BSD_DRIVER_USB_SAF1761_OTG */
+
/**
** Networking
**/
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