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freebsd-dev/sys/arm/freescale/imx/imx51_ipuv3_fbd.c
Pedro F. Giffuni af3dc4a7ca sys/arm: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:04:10 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
* Copyright (c) 2012, 2013 The FreeBSD Foundation
* All rights reserved.
*
* Portions of this software were developed by Oleksandr Rybalko
* under sponsorship from the FreeBSD Foundation.
*
* 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/bio.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/queue.h>
#include <sys/resource.h>
#include <sys/rman.h>
#include <sys/time.h>
#include <sys/timetc.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <sys/eventhandler.h>
#include <sys/kdb.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/frame.h>
#include <machine/intr.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/vt/vt.h>
#include <dev/vt/colors/vt_termcolors.h>
#include <arm/freescale/imx/imx51_ccmvar.h>
#include <arm/freescale/imx/imx51_ipuv3reg.h>
#include "fb_if.h"
#define IMX51_IPU_HSP_CLOCK 665000000
struct ipu3sc_softc {
device_t dev;
device_t sc_fbd; /* fbd child */
struct fb_info sc_info;
bus_space_tag_t iot;
bus_space_handle_t ioh;
bus_space_handle_t cm_ioh;
bus_space_handle_t dp_ioh;
bus_space_handle_t di0_ioh;
bus_space_handle_t di1_ioh;
bus_space_handle_t dctmpl_ioh;
bus_space_handle_t dc_ioh;
bus_space_handle_t dmfc_ioh;
bus_space_handle_t idmac_ioh;
bus_space_handle_t cpmem_ioh;
};
static struct ipu3sc_softc *ipu3sc_softc;
#define IPUV3_READ(ipuv3, module, reg) \
bus_space_read_4((ipuv3)->iot, (ipuv3)->module##_ioh, (reg))
#define IPUV3_WRITE(ipuv3, module, reg, val) \
bus_space_write_4((ipuv3)->iot, (ipuv3)->module##_ioh, (reg), (val))
#define CPMEM_CHANNEL_OFFSET(_c) ((_c) * 0x40)
#define CPMEM_WORD_OFFSET(_w) ((_w) * 0x20)
#define CPMEM_DP_OFFSET(_d) ((_d) * 0x10000)
#define IMX_IPU_DP0 0
#define IMX_IPU_DP1 1
#define CPMEM_CHANNEL(_dp, _ch, _w) \
(CPMEM_DP_OFFSET(_dp) + CPMEM_CHANNEL_OFFSET(_ch) + \
CPMEM_WORD_OFFSET(_w))
#define CPMEM_OFFSET(_dp, _ch, _w, _o) \
(CPMEM_CHANNEL((_dp), (_ch), (_w)) + (_o))
static int ipu3_fb_probe(device_t);
static int ipu3_fb_attach(device_t);
static void
ipu3_fb_init(struct ipu3sc_softc *sc)
{
uint64_t w0sh96;
uint32_t w1sh96;
/* FW W0[137:125] - 96 = [41:29] */
/* FH W0[149:138] - 96 = [53:42] */
w0sh96 = IPUV3_READ(sc, cpmem, CPMEM_OFFSET(IMX_IPU_DP1, 23, 0, 16));
w0sh96 <<= 32;
w0sh96 |= IPUV3_READ(sc, cpmem, CPMEM_OFFSET(IMX_IPU_DP1, 23, 0, 12));
sc->sc_info.fb_width = ((w0sh96 >> 29) & 0x1fff) + 1;
sc->sc_info.fb_height = ((w0sh96 >> 42) & 0x0fff) + 1;
/* SLY W1[115:102] - 96 = [19:6] */
w1sh96 = IPUV3_READ(sc, cpmem, CPMEM_OFFSET(IMX_IPU_DP1, 23, 1, 12));
sc->sc_info.fb_stride = ((w1sh96 >> 6) & 0x3fff) + 1;
printf("%dx%d [%d]\n", sc->sc_info.fb_width, sc->sc_info.fb_height,
sc->sc_info.fb_stride);
sc->sc_info.fb_size = sc->sc_info.fb_height * sc->sc_info.fb_stride;
sc->sc_info.fb_vbase = (intptr_t)contigmalloc(sc->sc_info.fb_size,
M_DEVBUF, M_ZERO, 0, ~0, PAGE_SIZE, 0);
sc->sc_info.fb_pbase = (intptr_t)vtophys(sc->sc_info.fb_vbase);
/* DP1 + config_ch_23 + word_2 */
IPUV3_WRITE(sc, cpmem, CPMEM_OFFSET(IMX_IPU_DP1, 23, 1, 0),
(((uint32_t)sc->sc_info.fb_pbase >> 3) |
(((uint32_t)sc->sc_info.fb_pbase >> 3) << 29)) & 0xffffffff);
IPUV3_WRITE(sc, cpmem, CPMEM_OFFSET(IMX_IPU_DP1, 23, 1, 4),
(((uint32_t)sc->sc_info.fb_pbase >> 3) >> 3) & 0xffffffff);
/* XXX: fetch or set it from/to IPU. */
sc->sc_info.fb_bpp = sc->sc_info.fb_depth = sc->sc_info.fb_stride /
sc->sc_info.fb_width * 8;
}
/* Use own color map, because of different RGB offset. */
static int
ipu3_fb_init_cmap(uint32_t *cmap, int bytespp)
{
switch (bytespp) {
case 8:
return (vt_generate_cons_palette(cmap, COLOR_FORMAT_RGB,
0x7, 5, 0x7, 2, 0x3, 0));
case 15:
return (vt_generate_cons_palette(cmap, COLOR_FORMAT_RGB,
0x1f, 10, 0x1f, 5, 0x1f, 0));
case 16:
return (vt_generate_cons_palette(cmap, COLOR_FORMAT_RGB,
0x1f, 11, 0x3f, 5, 0x1f, 0));
case 24:
case 32: /* Ignore alpha. */
return (vt_generate_cons_palette(cmap, COLOR_FORMAT_RGB,
0xff, 0, 0xff, 8, 0xff, 16));
default:
return (1);
}
}
static int
ipu3_fb_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "fsl,ipu3"))
return (ENXIO);
device_set_desc(dev, "i.MX5x Image Processing Unit v3 (FB)");
return (BUS_PROBE_DEFAULT);
}
static int
ipu3_fb_attach(device_t dev)
{
struct ipu3sc_softc *sc = device_get_softc(dev);
bus_space_tag_t iot;
bus_space_handle_t ioh;
phandle_t node;
pcell_t reg;
int err;
uintptr_t base;
ipu3sc_softc = sc;
if (bootverbose)
device_printf(dev, "clock gate status is %d\n",
imx51_get_clk_gating(IMX51CLK_IPU_HSP_CLK_ROOT));
sc->dev = dev;
sc = device_get_softc(dev);
sc->iot = iot = fdtbus_bs_tag;
/*
* Retrieve the device address based on the start address in the
* DTS. The DTS for i.MX51 specifies 0x5e000000 as the first register
* address, so we just subtract IPU_CM_BASE to get the offset at which
* the IPU device was memory mapped.
* On i.MX53, the offset is 0.
*/
node = ofw_bus_get_node(dev);
if ((OF_getencprop(node, "reg", &reg, sizeof(reg))) <= 0)
base = 0;
else
base = reg - IPU_CM_BASE(0);
/* map controller registers */
err = bus_space_map(iot, IPU_CM_BASE(base), IPU_CM_SIZE, 0, &ioh);
if (err)
goto fail_retarn_cm;
sc->cm_ioh = ioh;
/* map Display Multi FIFO Controller registers */
err = bus_space_map(iot, IPU_DMFC_BASE(base), IPU_DMFC_SIZE, 0, &ioh);
if (err)
goto fail_retarn_dmfc;
sc->dmfc_ioh = ioh;
/* map Display Interface 0 registers */
err = bus_space_map(iot, IPU_DI0_BASE(base), IPU_DI0_SIZE, 0, &ioh);
if (err)
goto fail_retarn_di0;
sc->di0_ioh = ioh;
/* map Display Interface 1 registers */
err = bus_space_map(iot, IPU_DI1_BASE(base), IPU_DI0_SIZE, 0, &ioh);
if (err)
goto fail_retarn_di1;
sc->di1_ioh = ioh;
/* map Display Processor registers */
err = bus_space_map(iot, IPU_DP_BASE(base), IPU_DP_SIZE, 0, &ioh);
if (err)
goto fail_retarn_dp;
sc->dp_ioh = ioh;
/* map Display Controller registers */
err = bus_space_map(iot, IPU_DC_BASE(base), IPU_DC_SIZE, 0, &ioh);
if (err)
goto fail_retarn_dc;
sc->dc_ioh = ioh;
/* map Image DMA Controller registers */
err = bus_space_map(iot, IPU_IDMAC_BASE(base), IPU_IDMAC_SIZE, 0,
&ioh);
if (err)
goto fail_retarn_idmac;
sc->idmac_ioh = ioh;
/* map CPMEM registers */
err = bus_space_map(iot, IPU_CPMEM_BASE(base), IPU_CPMEM_SIZE, 0,
&ioh);
if (err)
goto fail_retarn_cpmem;
sc->cpmem_ioh = ioh;
/* map DCTEMPL registers */
err = bus_space_map(iot, IPU_DCTMPL_BASE(base), IPU_DCTMPL_SIZE, 0,
&ioh);
if (err)
goto fail_retarn_dctmpl;
sc->dctmpl_ioh = ioh;
#ifdef notyet
sc->ih = imx51_ipuv3_intr_establish(IMX51_INT_IPUV3, IPL_BIO,
ipuv3intr, sc);
if (sc->ih == NULL) {
device_printf(sc->dev,
"unable to establish interrupt at irq %d\n",
IMX51_INT_IPUV3);
return (ENXIO);
}
#endif
/*
* We have to wait until interrupts are enabled.
* Mailbox relies on it to get data from VideoCore
*/
ipu3_fb_init(sc);
sc->sc_info.fb_name = device_get_nameunit(dev);
ipu3_fb_init_cmap(sc->sc_info.fb_cmap, sc->sc_info.fb_depth);
sc->sc_info.fb_cmsize = 16;
/* Ask newbus to attach framebuffer device to me. */
sc->sc_fbd = device_add_child(dev, "fbd", device_get_unit(dev));
if (sc->sc_fbd == NULL)
device_printf(dev, "Can't attach fbd device\n");
return (bus_generic_attach(dev));
fail_retarn_dctmpl:
bus_space_unmap(sc->iot, sc->cpmem_ioh, IPU_CPMEM_SIZE);
fail_retarn_cpmem:
bus_space_unmap(sc->iot, sc->idmac_ioh, IPU_IDMAC_SIZE);
fail_retarn_idmac:
bus_space_unmap(sc->iot, sc->dc_ioh, IPU_DC_SIZE);
fail_retarn_dp:
bus_space_unmap(sc->iot, sc->dp_ioh, IPU_DP_SIZE);
fail_retarn_dc:
bus_space_unmap(sc->iot, sc->di1_ioh, IPU_DI1_SIZE);
fail_retarn_di1:
bus_space_unmap(sc->iot, sc->di0_ioh, IPU_DI0_SIZE);
fail_retarn_di0:
bus_space_unmap(sc->iot, sc->dmfc_ioh, IPU_DMFC_SIZE);
fail_retarn_dmfc:
bus_space_unmap(sc->iot, sc->dc_ioh, IPU_CM_SIZE);
fail_retarn_cm:
device_printf(sc->dev,
"failed to map registers (errno=%d)\n", err);
return (err);
}
static struct fb_info *
ipu3_fb_getinfo(device_t dev)
{
struct ipu3sc_softc *sc = device_get_softc(dev);
return (&sc->sc_info);
}
static device_method_t ipu3_fb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ipu3_fb_probe),
DEVMETHOD(device_attach, ipu3_fb_attach),
/* Framebuffer service methods */
DEVMETHOD(fb_getinfo, ipu3_fb_getinfo),
{ 0, 0 }
};
static devclass_t ipu3_fb_devclass;
static driver_t ipu3_fb_driver = {
"fb",
ipu3_fb_methods,
sizeof(struct ipu3sc_softc),
};
DRIVER_MODULE(fb, simplebus, ipu3_fb_driver, ipu3_fb_devclass, 0, 0);
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