mirror of
https://git.rtems.org/rtems-libbsd/
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am335x display drivers: Import from FreeBSD
This commit is contained in:
Vijay Kumar Banerjee
Christian Mauderer
parent
d7c01f4569
commit
7adbe5b0bd
202
freebsd/sys/arm/ti/am335x/am335x_ecap.c
Normal file
202
freebsd/sys/arm/ti/am335x/am335x_ecap.c
Normal file
@ -0,0 +1,202 @@
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#include <machine/rtems-bsd-kernel-space.h>
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/*-
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* Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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|
* modification, are permitted provided that the following conditions
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||||||
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* are met:
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|
* 1. Redistributions of source code must retain the above copyright
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||||||
|
* notice, this list of conditions and the following disclaimer.
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|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <rtems/bsd/sys/resource.h>
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#include <sys/rman.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include "am335x_pwm.h"
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#define ECAP_TSCTR 0x00
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#define ECAP_CAP1 0x08
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#define ECAP_CAP2 0x0C
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#define ECAP_CAP3 0x10
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#define ECAP_CAP4 0x14
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#define ECAP_ECCTL2 0x2A
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#define ECCTL2_MODE_APWM (1 << 9)
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#define ECCTL2_SYNCO_SEL (3 << 6)
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#define ECCTL2_TSCTRSTOP_FREERUN (1 << 4)
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#define ECAP_READ2(_sc, reg) bus_read_2((_sc)->sc_mem_res, reg);
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#define ECAP_WRITE2(_sc, reg, value) \
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bus_write_2((_sc)->sc_mem_res, reg, value);
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#define ECAP_READ4(_sc, reg) bus_read_4((_sc)->sc_mem_res, reg);
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#define ECAP_WRITE4(_sc, reg, value) \
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bus_write_4((_sc)->sc_mem_res, reg, value);
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#define PWM_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
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#define PWM_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
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#define PWM_LOCK_INIT(_sc) mtx_init(&(_sc)->sc_mtx, \
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device_get_nameunit(_sc->sc_dev), "am335x_ecap softc", MTX_DEF)
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#define PWM_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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static device_probe_t am335x_ecap_probe;
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static device_attach_t am335x_ecap_attach;
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static device_detach_t am335x_ecap_detach;
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struct am335x_ecap_softc {
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device_t sc_dev;
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struct mtx sc_mtx;
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struct resource *sc_mem_res;
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int sc_mem_rid;
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};
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static device_method_t am335x_ecap_methods[] = {
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DEVMETHOD(device_probe, am335x_ecap_probe),
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DEVMETHOD(device_attach, am335x_ecap_attach),
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DEVMETHOD(device_detach, am335x_ecap_detach),
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DEVMETHOD_END
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};
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static driver_t am335x_ecap_driver = {
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"am335x_ecap",
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am335x_ecap_methods,
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sizeof(struct am335x_ecap_softc),
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};
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static devclass_t am335x_ecap_devclass;
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/*
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* API function to set period/duty cycles for ECAPx
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*/
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int
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am335x_pwm_config_ecap(int unit, int period, int duty)
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{
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device_t dev;
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struct am335x_ecap_softc *sc;
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uint16_t reg;
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dev = devclass_get_device(am335x_ecap_devclass, unit);
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if (dev == NULL)
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return (ENXIO);
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if (duty > period)
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return (EINVAL);
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if (period == 0)
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return (EINVAL);
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sc = device_get_softc(dev);
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PWM_LOCK(sc);
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reg = ECAP_READ2(sc, ECAP_ECCTL2);
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reg |= ECCTL2_MODE_APWM | ECCTL2_TSCTRSTOP_FREERUN | ECCTL2_SYNCO_SEL;
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ECAP_WRITE2(sc, ECAP_ECCTL2, reg);
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/* CAP3 in APWM mode is APRD shadow register */
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ECAP_WRITE4(sc, ECAP_CAP3, period - 1);
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/* CAP4 in APWM mode is ACMP shadow register */
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ECAP_WRITE4(sc, ECAP_CAP4, duty);
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/* Restart counter */
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ECAP_WRITE4(sc, ECAP_TSCTR, 0);
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PWM_UNLOCK(sc);
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return (0);
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}
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static int
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am335x_ecap_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_is_compatible(dev, "ti,am33xx-ecap"))
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return (ENXIO);
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device_set_desc(dev, "AM335x eCAP");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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am335x_ecap_attach(device_t dev)
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{
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struct am335x_ecap_softc *sc;
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sc = device_get_softc(dev);
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sc->sc_dev = dev;
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PWM_LOCK_INIT(sc);
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sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->sc_mem_rid, RF_ACTIVE);
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if (sc->sc_mem_res == NULL) {
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device_printf(dev, "cannot allocate memory resources\n");
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goto fail;
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}
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return (0);
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fail:
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PWM_LOCK_DESTROY(sc);
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return (ENXIO);
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}
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static int
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am335x_ecap_detach(device_t dev)
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{
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struct am335x_ecap_softc *sc;
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sc = device_get_softc(dev);
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PWM_LOCK(sc);
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if (sc->sc_mem_res)
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bus_release_resource(dev, SYS_RES_MEMORY,
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sc->sc_mem_rid, sc->sc_mem_res);
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PWM_UNLOCK(sc);
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PWM_LOCK_DESTROY(sc);
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return (0);
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}
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DRIVER_MODULE(am335x_ecap, am335x_pwmss, am335x_ecap_driver, am335x_ecap_devclass, 0, 0);
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MODULE_VERSION(am335x_ecap, 1);
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MODULE_DEPEND(am335x_ecap, am335x_pwmss, 1, 1, 1);
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1085
freebsd/sys/arm/ti/am335x/am335x_lcd.c
Normal file
1085
freebsd/sys/arm/ti/am335x/am335x_lcd.c
Normal file
File diff suppressed because it is too large
Load Diff
60
freebsd/sys/arm/ti/am335x/am335x_lcd.h
Normal file
60
freebsd/sys/arm/ti/am335x/am335x_lcd.h
Normal file
@ -0,0 +1,60 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
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||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
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*
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|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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|
* SUCH DAMAGE.
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|
*
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* $FreeBSD$
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*/
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#ifndef __AM335X_LCD_H__
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#define __AM335X_LCD_H__
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struct panel_info {
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/* Timing part */
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uint32_t panel_width;
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uint32_t panel_height;
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uint32_t panel_hfp;
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uint32_t panel_hbp;
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uint32_t panel_hsw;
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uint32_t panel_vfp;
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uint32_t panel_vbp;
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uint32_t panel_vsw;
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uint32_t hsync_active;
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uint32_t vsync_active;
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uint32_t panel_pxl_clk;
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uint32_t ac_bias;
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uint32_t ac_bias_intrpt;
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uint32_t dma_burst_sz;
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uint32_t bpp;
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uint32_t fdd;
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uint32_t sync_edge;
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uint32_t sync_ctrl;
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uint32_t pixelclk_active;
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};
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int am335x_lcd_syscons_setup(vm_offset_t vaddr, vm_paddr_t paddr,
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struct panel_info *panel);
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#endif /* __AM335X_LCD_H__ */
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35
freebsd/sys/arm/ti/am335x/am335x_pwm.h
Normal file
35
freebsd/sys/arm/ti/am335x/am335x_pwm.h
Normal file
@ -0,0 +1,35 @@
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|
/*-
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|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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|
*
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|
* Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
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|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
* $FreeBSD$
|
||||||
|
*/
|
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|
#ifndef __AM335X_PWM_H__
|
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|
#define __AM335X_PWM_H__
|
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|
|
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|
int am335x_pwm_config_ecap(int unit, int period, int duty);
|
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|
|
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|
#endif /* __AM335X_PWM_H__ */
|
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165
freebsd/sys/arm/ti/am335x/am335x_pwmss.c
Normal file
165
freebsd/sys/arm/ti/am335x/am335x_pwmss.c
Normal file
@ -0,0 +1,165 @@
|
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|
#include <machine/rtems-bsd-kernel-space.h>
|
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|
|
||||||
|
/*-
|
||||||
|
* Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/systm.h>
|
||||||
|
#include <sys/bus.h>
|
||||||
|
#include <sys/kernel.h>
|
||||||
|
#include <sys/limits.h>
|
||||||
|
#include <sys/lock.h>
|
||||||
|
#include <sys/module.h>
|
||||||
|
#include <sys/mutex.h>
|
||||||
|
#include <rtems/bsd/sys/resource.h>
|
||||||
|
#include <sys/rman.h>
|
||||||
|
#include <sys/sysctl.h>
|
||||||
|
|
||||||
|
#include <machine/bus.h>
|
||||||
|
|
||||||
|
#include <dev/fdt/simplebus.h>
|
||||||
|
#include <dev/ofw/openfirm.h>
|
||||||
|
#include <dev/ofw/ofw_bus.h>
|
||||||
|
#include <dev/ofw/ofw_bus_subr.h>
|
||||||
|
|
||||||
|
#include <arm/ti/ti_prcm.h>
|
||||||
|
#include <arm/ti/ti_hwmods.h>
|
||||||
|
#include <arm/ti/ti_scm.h>
|
||||||
|
|
||||||
|
#include "am335x_pwm.h"
|
||||||
|
#include "am335x_scm.h"
|
||||||
|
|
||||||
|
#define PWMSS_IDVER 0x00
|
||||||
|
#define PWMSS_SYSCONFIG 0x04
|
||||||
|
#define PWMSS_CLKCONFIG 0x08
|
||||||
|
#define CLKCONFIG_EPWMCLK_EN (1 << 8)
|
||||||
|
#define PWMSS_CLKSTATUS 0x0C
|
||||||
|
|
||||||
|
static device_probe_t am335x_pwmss_probe;
|
||||||
|
static device_attach_t am335x_pwmss_attach;
|
||||||
|
static device_detach_t am335x_pwmss_detach;
|
||||||
|
|
||||||
|
struct am335x_pwmss_softc {
|
||||||
|
struct simplebus_softc sc_simplebus;
|
||||||
|
device_t sc_dev;
|
||||||
|
clk_ident_t sc_clk;
|
||||||
|
};
|
||||||
|
|
||||||
|
static device_method_t am335x_pwmss_methods[] = {
|
||||||
|
DEVMETHOD(device_probe, am335x_pwmss_probe),
|
||||||
|
DEVMETHOD(device_attach, am335x_pwmss_attach),
|
||||||
|
DEVMETHOD(device_detach, am335x_pwmss_detach),
|
||||||
|
|
||||||
|
DEVMETHOD_END
|
||||||
|
};
|
||||||
|
|
||||||
|
static int
|
||||||
|
am335x_pwmss_probe(device_t dev)
|
||||||
|
{
|
||||||
|
|
||||||
|
if (!ofw_bus_status_okay(dev))
|
||||||
|
return (ENXIO);
|
||||||
|
|
||||||
|
if (!ofw_bus_is_compatible(dev, "ti,am33xx-pwmss"))
|
||||||
|
return (ENXIO);
|
||||||
|
|
||||||
|
device_set_desc(dev, "AM335x PWM");
|
||||||
|
|
||||||
|
return (BUS_PROBE_DEFAULT);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
am335x_pwmss_attach(device_t dev)
|
||||||
|
{
|
||||||
|
struct am335x_pwmss_softc *sc;
|
||||||
|
uint32_t reg, id;
|
||||||
|
phandle_t node;
|
||||||
|
|
||||||
|
sc = device_get_softc(dev);
|
||||||
|
sc->sc_dev = dev;
|
||||||
|
|
||||||
|
sc->sc_clk = ti_hwmods_get_clock(dev);
|
||||||
|
if (sc->sc_clk == INVALID_CLK_IDENT) {
|
||||||
|
device_printf(dev, "failed to get device id based on ti,hwmods\n");
|
||||||
|
return (EINVAL);
|
||||||
|
}
|
||||||
|
|
||||||
|
ti_prcm_clk_enable(sc->sc_clk);
|
||||||
|
ti_scm_reg_read_4(SCM_PWMSS_CTRL, ®);
|
||||||
|
switch (sc->sc_clk) {
|
||||||
|
case PWMSS0_CLK:
|
||||||
|
id = 0;
|
||||||
|
break;
|
||||||
|
case PWMSS1_CLK:
|
||||||
|
id = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case PWMSS2_CLK:
|
||||||
|
id = 2;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
device_printf(dev, "unknown pwmss clock id: %d\n", sc->sc_clk);
|
||||||
|
return (EINVAL);
|
||||||
|
}
|
||||||
|
reg |= (1 << id);
|
||||||
|
ti_scm_reg_write_4(SCM_PWMSS_CTRL, reg);
|
||||||
|
|
||||||
|
node = ofw_bus_get_node(dev);
|
||||||
|
|
||||||
|
if (node == -1)
|
||||||
|
return (ENXIO);
|
||||||
|
|
||||||
|
simplebus_init(dev, node);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Allow devices to identify.
|
||||||
|
*/
|
||||||
|
bus_generic_probe(dev);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Now walk the OFW tree and attach top-level devices.
|
||||||
|
*/
|
||||||
|
for (node = OF_child(node); node > 0; node = OF_peer(node))
|
||||||
|
simplebus_add_device(dev, node, 0, NULL, -1, NULL);
|
||||||
|
|
||||||
|
return (bus_generic_attach(dev));
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
am335x_pwmss_detach(device_t dev)
|
||||||
|
{
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
DEFINE_CLASS_1(am335x_pwmss, am335x_pwmss_driver, am335x_pwmss_methods,
|
||||||
|
sizeof(struct am335x_pwmss_softc), simplebus_driver);
|
||||||
|
static devclass_t am335x_pwmss_devclass;
|
||||||
|
DRIVER_MODULE(am335x_pwmss, simplebus, am335x_pwmss_driver, am335x_pwmss_devclass, 0, 0);
|
||||||
|
MODULE_VERSION(am335x_pwmss, 1);
|
||||||
Loading…
x
Reference in New Issue
Block a user