[PATCH 4/6] am335x display drivers: Port to RTEMS

Vijay Kumar Banerjee vijaykumar9597 at gmail.com
Sun Jun 30 16:26:59 UTC 2019


On Sun, Jun 30, 2019 at 9:21 PM Christian Mauderer <list at c-mauderer.de>
wrote:

> On 30/06/2019 17:29, Vijay Kumar Banerjee wrote:
> > ---
> >  Makefile.todo                                 | 13 ++++++
> >  libbsd.py                                     | 12 +++++
> >  rtemsbsd/include/bsp/nexus-devices.h          |  2 +
> >  .../machine/rtems-bsd-kernel-namespace.h      |  2 +
> >  rtemsbsd/include/rtems/bsd/local/fb_if.h      | 45 +++++++++++++++++++
> >  rtemsbsd/include/rtems/bsd/local/opt_splash.h |  0
> >  .../include/rtems/bsd/local/opt_syscons.h     |  0
> >  rtemsbsd/include/rtems/bsd/local/opt_teken.h  |  0
> >  rtemsbsd/local/fb_if.c                        | 30 +++++++++++++
> >  9 files changed, 104 insertions(+)
> >  create mode 100644 rtemsbsd/include/rtems/bsd/local/fb_if.h
> >  create mode 100644 rtemsbsd/include/rtems/bsd/local/opt_splash.h
> >  create mode 100644 rtemsbsd/include/rtems/bsd/local/opt_syscons.h
> >  create mode 100644 rtemsbsd/include/rtems/bsd/local/opt_teken.h
> >  create mode 100644 rtemsbsd/local/fb_if.c
> >
> > diff --git a/Makefile.todo b/Makefile.todo
> > index 358d6956..ed1e428e 100644
> > --- a/Makefile.todo
> > +++ b/Makefile.todo
> > @@ -51,6 +51,8 @@ GENERATED += $(LOCAL_INC)/clknode_if.h
> >  GENERATED += $(LOCAL_SRC)/clknode_if.c
> >  GENERATED += $(LOCAL_INC)/hdmi_if.h
> >  GENERATED += $(LOCAL_SRC)/hdmi_if.c
> > +GENERATED += $(LOCAL_INC)/fb_if.h
> > +GENERATED += $(LOCAL_SRC)/fb_if.c
> >  GENERATED += rtemsbsd/include/machine/rtems-bsd-regdomain.h
> >  GENERATED += rtemsbsd/rtems/rtems-bsd-regdomain.c
> >
> > @@ -266,6 +268,17 @@ $(LOCAL_SRC)/hdmi_if.c:
> $(FREEBSD_SRC)/sys/dev/hdmi/hdmi_if.m
> >           -e 's|#include "hdmi_if.h"|#include
> <rtems/bsd/local/hdmi_if.h>|'
> >       mv hdmi_if.c $@
> >
> > +$(LOCAL_INC)/fb_if.h: $(FREEBSD_SRC)/sys/dev/fb/fb_if.m
> > +     awk -f $(TOOLS)/makeobjops.awk $< -h
> > +     mv fb_if.h $@
> > +
> > +$(LOCAL_SRC)/fb_if.c: $(FREEBSD_SRC)/sys/dev/fb/fb_if.m
> > +     awk -f $(TOOLS)/makeobjops.awk $< -c
> > +     sed -i fb_if.c \
> > +         -e '1 i\#include <machine/rtems-bsd-kernel-space.h>\n' \
> > +         -e 's|#include "fb_if.h"|#include <rtems/bsd/local/fb_if.h>|'
> > +     mv fb_if.c $@
> > +
> >  $(LOCAL_SRC)/gpio_if.c: $(FREEBSD_SRC)/sys/dev/gpio/gpio_if.m
> >       awk -f $(TOOLS)/makeobjops.awk $< -c
> >       mv gpio_if.c $@
> > diff --git a/libbsd.py b/libbsd.py
> > index b21ddccf..bce1d268 100644
> > --- a/libbsd.py
> > +++ b/libbsd.py
> > @@ -799,6 +799,14 @@ class display(builder.Module):
> >                  'sys/dev/videomode/ediddevs.h',
> >                  'sys/dev/videomode/ediddevs_data.h',
> >                  'sys/dev/videomode/vesagtf.h',
> > +                'sys/arm/ti/am335x/am335x_lcd.h',
> > +                'sys/arm/ti/am335x/am335x_pwm.h',
> > +                'sys/dev/fb/fbreg.h',
> > +                'sys/dev/vt/vt.h',
> > +                'sys/teken/teken.h',
> From the header:
>
>    This library converts an UTF-8 stream of bytes to terminal drawing
>    commands.
>
> Where is that necessary?
>
This is being included in the terminal.h, the defines are necessary hence
I haven't added teken.c

>
> > +                'sys/sys/fbio.h',
> > +                'sys/sys/consio.h',
> > +                'sys/sys/terminal.h',
> >              ]
> >          )
> >          self.addKernelSpaceSourceFiles(
> > @@ -811,6 +819,9 @@ class display(builder.Module):
> >                  'sys/dev/videomode/edid.c',
> >                  'sys/dev/videomode/vesagtf.c',
> >                  'sys/dev/videomode/videomode.c',
> > +                'sys/arm/ti/am335x/am335x_lcd.c',
> > +                'sys/arm/ti/am335x/am335x_pwmss.c',
> > +                'sys/arm/ti/am335x/am335x_ecap.c',
> >              ],
> >              mm.generator['source']()
> >          )
> > @@ -818,6 +829,7 @@ class display(builder.Module):
> >              [
> >                  'local/clknode_if.c',
> >                  'local/hdmi_if.c',
> > +                'local/fb_if.c',
> >              ],
> >              mm.generator['source']()
> >          )
> > diff --git a/rtemsbsd/include/bsp/nexus-devices.h
> b/rtemsbsd/include/bsp/nexus-devices.h
> > index 3ec136ae..2c718295 100644
> > --- a/rtemsbsd/include/bsp/nexus-devices.h
> > +++ b/rtemsbsd/include/bsp/nexus-devices.h
> > @@ -61,6 +61,8 @@ SYSINIT_DRIVER_REFERENCE(sdhci_ti, simplebus);
> >  SYSINIT_DRIVER_REFERENCE(mmcsd, mmc);
> >  SYSINIT_DRIVER_REFERENCE(cpsw, cpswss);
> >  SYSINIT_DRIVER_REFERENCE(ukphy, miibus);
> > +SYSINIT_DRIVER_REFERENCE(am335x_lcd, simplebus);
> > +SYSINIT_DRIVER_REFERENCE(am335x_pwmss, simplebus);
> >  SYSINIT_DRIVER_REFERENCE(rtems_i2c, simplebus);
> >  SYSINIT_DRIVER_REFERENCE(ofw_iicbus, rtems_i2c);
> >  SYSINIT_DRIVER_REFERENCE(iic, iicbus);
> > diff --git a/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
> b/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
> > index bef9f411..3951da79 100644
> > --- a/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
> > +++ b/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
> > @@ -46,6 +46,8 @@
> >  #define      altq_remove _bsd_altq_remove
> >  #define      altq_remove_queue _bsd_altq_remove_queue
> >  #define      altqs_inactive_open _bsd_altqs_inactive_open
> > +#define      am335x_pwm_config_ecap _bsd_am335x_pwm_config_ecap
> > +#define      am335x_pwmss_driver _bsd_am335x_pwmss_driver
> >  #define      arp_announce_ifaddr _bsd_arp_announce_ifaddr
> >  #define      arp_ifinit _bsd_arp_ifinit
> >  #define      arprequest _bsd_arprequest
> > diff --git a/rtemsbsd/include/rtems/bsd/local/fb_if.h
> b/rtemsbsd/include/rtems/bsd/local/fb_if.h
> > new file mode 100644
> > index 00000000..7b97028f
> > --- /dev/null
> > +++ b/rtemsbsd/include/rtems/bsd/local/fb_if.h
> > @@ -0,0 +1,45 @@
> > +/*
> > + * This file is @generated automatically.
> > + * Do not modify anything in here by hand.
> > + *
> > + * Created from source file
> > + *   freebsd-org/sys/dev/fb/fb_if.m
> > + * with
> > + *   makeobjops.awk
> > + *
> > + * See the source file for legal information
> > + */
> > +
> > +
> > +#ifndef _fb_if_h_
> > +#define _fb_if_h_
> > +
> > +/** @brief Unique descriptor for the FB_PIN_MAX() method */
> > +extern struct kobjop_desc fb_pin_max_desc;
> > +/** @brief A function implementing the FB_PIN_MAX() method */
> > +typedef int fb_pin_max_t(device_t dev, int *npins);
> > +
> > +static __inline int FB_PIN_MAX(device_t dev, int *npins)
> > +{
> > +     kobjop_t _m;
> > +     int rc;
> > +     KOBJOPLOOKUP(((kobj_t)dev)->ops,fb_pin_max);
> > +     rc = ((fb_pin_max_t *) _m)(dev, npins);
> > +     return (rc);
> > +}
> > +
> > +/** @brief Unique descriptor for the FB_GETINFO() method */
> > +extern struct kobjop_desc fb_getinfo_desc;
> > +/** @brief A function implementing the FB_GETINFO() method */
> > +typedef struct fb_info * fb_getinfo_t(device_t dev);
> > +
> > +static __inline struct fb_info * FB_GETINFO(device_t dev)
> > +{
> > +     kobjop_t _m;
> > +     struct fb_info * rc;
> > +     KOBJOPLOOKUP(((kobj_t)dev)->ops,fb_getinfo);
> > +     rc = ((fb_getinfo_t *) _m)(dev);
> > +     return (rc);
> > +}
> > +
> > +#endif /* _fb_if_h_ */
> > diff --git a/rtemsbsd/include/rtems/bsd/local/opt_splash.h
> b/rtemsbsd/include/rtems/bsd/local/opt_splash.h
> > new file mode 100644
> > index 00000000..e69de29b
> > diff --git a/rtemsbsd/include/rtems/bsd/local/opt_syscons.h
> b/rtemsbsd/include/rtems/bsd/local/opt_syscons.h
> > new file mode 100644
> > index 00000000..e69de29b
> > diff --git a/rtemsbsd/include/rtems/bsd/local/opt_teken.h
> b/rtemsbsd/include/rtems/bsd/local/opt_teken.h
> > new file mode 100644
> > index 00000000..e69de29b
> > diff --git a/rtemsbsd/local/fb_if.c b/rtemsbsd/local/fb_if.c
> > new file mode 100644
> > index 00000000..ceb57e4b
> > --- /dev/null
> > +++ b/rtemsbsd/local/fb_if.c
> > @@ -0,0 +1,30 @@
> > +#include <machine/rtems-bsd-kernel-space.h>
> > +
> > +/*
> > + * This file is @generated automatically.
> > + * Do not modify anything in here by hand.
> > + *
> > + * Created from source file
> > + *   freebsd-org/sys/dev/fb/fb_if.m
> > + * with
> > + *   makeobjops.awk
> > + *
> > + * See the source file for legal information
> > + */
> > +
> > +#include <sys/param.h>
> > +#include <sys/queue.h>
> > +#include <sys/kernel.h>
> > +#include <sys/kobj.h>
> > +#include <sys/bus.h>
> > +#include <sys/fbio.h>
> > +#include <rtems/bsd/local/fb_if.h>
> > +
> > +struct kobjop_desc fb_pin_max_desc = {
> > +     0, { &fb_pin_max_desc, (kobjop_t)kobj_error_method }
> > +};
> > +
> > +struct kobjop_desc fb_getinfo_desc = {
> > +     0, { &fb_getinfo_desc, (kobjop_t)kobj_error_method }
> > +};
> > +
> >
>
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