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Add driver for Display Controller.

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This commit is contained in:
Ruslan Bukin 2014-03-20 17:07:14 +00:00
parent d74318a415
commit c93bcd0b2c
3 changed files with 454 additions and 0 deletions
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40
sys/arm/samsung/exynos/exynos5_common.h Normal file
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/*-
* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
* 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.
*
* $FreeBSD$
*/
#define READ4(_sc, _reg) \
bus_space_read_4(_sc->bst, _sc->bsh, _reg)
#define WRITE4(_sc, _reg, _val) \
bus_space_write_4(_sc->bst, _sc->bsh, _reg, _val)
#define READ2(_sc, _reg) \
bus_space_read_2(_sc->bst, _sc->bsh, _reg)
#define WRITE2(_sc, _reg, _val) \
bus_space_write_2(_sc->bst, _sc->bsh, _reg, _val)
#define READ1(_sc, _reg) \
bus_space_read_1(_sc->bst, _sc->bsh, _reg)
#define WRITE1(_sc, _reg, _val) \
bus_space_write_1(_sc->bst, _sc->bsh, _reg, _val)

413
sys/arm/samsung/exynos/exynos5_fimd.c Normal file
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/*-
* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
* 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.
*/
/*
* Samsung Exynos 5 Display Controller
* Chapter 15, Exynos 5 Dual User's Manual Public Rev 1.00
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/rman.h>
#include <sys/timeet.h>
#include <sys/timetc.h>
#include <sys/watchdog.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <sys/eventhandler.h>
#include <sys/gpio.h>
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/openfirm.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/samsung/exynos/exynos5_common.h>
#include "gpio_if.h"
#include <machine/bus.h>
#include <machine/fdt.h>
#include <machine/cpu.h>
#include <machine/intr.h>
#include "fb_if.h"
#define FIMDBYPASS_DISP1 (1 << 15)
#define VIDCON0 (0x0)
#define VIDCON0_ENVID (1 << 1)
#define VIDCON0_ENVID_F (1 << 0)
#define CLKVAL_F 0xb
#define CLKVAL_F_OFFSET 6
#define WINCON0 0x0020
#define WINCON1 0x0024
#define WINCON2 0x0028
#define WINCON3 0x002C
#define WINCON4 0x0030
#define ENLOCAL_F (1 << 22)
#define BPPMODE_F_RGB_16BIT_565 0x5
#define BPPMODE_F_OFFSET 2
#define ENWIN_F_ENABLE (1 << 0)
#define HALF_WORD_SWAP_EN (1 << 16)
#define SHADOWCON 0x0034
#define CHANNEL0_EN (1 << 0)
#define VIDOSD0A 0x0040
#define VIDOSD0B 0x0044
#define VIDOSD0C 0x0048
#define VIDW00ADD0B0 0x00A0
#define VIDW00ADD0B1 0x00A4
#define VIDW00ADD0B2 0x20A0
#define VIDW00ADD1B0 0x00D0
#define VIDW00ADD1B1 0x00D4
#define VIDW00ADD1B2 0x20D0
#define VIDW00ADD2 0x0100
#define VIDW01ADD2 0x0104
#define VIDW02ADD2 0x0108
#define VIDW03ADD2 0x010C
#define VIDW04ADD2 0x0110
#define VIDCON1 (0x04)
#define VIDTCON0 0x0010
#define VIDTCON1 0x0014
#define VIDTCON2 0x0018
#define VIDTCON3 0x001C
#define VIDINTCON0 0x0130
#define VIDINTCON1 0x0134
#define VSYNC_PULSE_WIDTH_VAL 0x3
#define VSYNC_PULSE_WIDTH_OFFSET 0
#define V_FRONT_PORCH_VAL 0x3
#define V_FRONT_PORCH_OFFSET 8
#define V_BACK_PORCH_VAL 0x3
#define V_BACK_PORCH_OFFSET 16
#define HSYNC_PULSE_WIDTH_VAL 0x3
#define HSYNC_PULSE_WIDTH_OFFSET 0
#define H_FRONT_PORCH_VAL 0x3
#define H_FRONT_PORCH_OFFSET 8
#define H_BACK_PORCH_VAL 0x3
#define H_BACK_PORCH_OFFSET 16
#define HOZVAL_OFFSET 0
#define LINEVAL_OFFSET 11
#define OSD_RIGHTBOTX_F_OFFSET 11
#define OSD_RIGHTBOTY_F_OFFSET 0
#define DPCLKCON 0x27c
#define DPCLKCON_EN (1 << 1)
#define DREAD4(_sc, _reg) \
bus_space_read_4(_sc->bst_disp, _sc->bsh_disp, _reg)
#define DWRITE4(_sc, _reg, _val) \
bus_space_write_4(_sc->bst_disp, _sc->bsh_disp, _reg, _val)
struct panel_info {
uint32_t width;
uint32_t height;
uint32_t h_back_porch;
uint32_t h_pulse_width;
uint32_t h_front_porch;
uint32_t v_back_porch;
uint32_t v_pulse_width;
uint32_t v_front_porch;
uint32_t clk_div;
uint32_t backlight_pin;
uint32_t fixvclk;
uint32_t ivclk;
uint32_t clkval_f;
};
struct fimd_softc {
struct resource *res[3];
bus_space_tag_t bst;
bus_space_handle_t bsh;
bus_space_tag_t bst_disp;
bus_space_handle_t bsh_disp;
bus_space_tag_t bst_sysreg;
bus_space_handle_t bsh_sysreg;
void *ih;
device_t dev;
device_t sc_fbd; /* fbd child */
struct fb_info sc_info;
struct panel_info *panel;
};
static struct resource_spec fimd_spec[] = {
{ SYS_RES_MEMORY, 0, RF_ACTIVE }, /* Timer registers */
{ SYS_RES_MEMORY, 1, RF_ACTIVE }, /* FIMD */
{ SYS_RES_MEMORY, 2, RF_ACTIVE }, /* DISP */
{ -1, 0 }
};
static int
fimd_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "exynos,fimd"))
return (ENXIO);
device_set_desc(dev, "Samsung Exynos 5 Display Controller");
return (BUS_PROBE_DEFAULT);
}
static int
get_panel_info(struct fimd_softc *sc, struct panel_info *panel)
{
phandle_t node;
pcell_t dts_value[3];
int len;
if ((node = ofw_bus_get_node(sc->dev)) == -1)
return (ENXIO);
/* panel size */
if ((len = OF_getproplen(node, "panel-size")) <= 0)
return (ENXIO);
OF_getprop(node, "panel-size", &dts_value, len);
panel->width = fdt32_to_cpu(dts_value[0]);
panel->height = fdt32_to_cpu(dts_value[1]);
/* hsync */
if ((len = OF_getproplen(node, "panel-hsync")) <= 0)
return (ENXIO);
OF_getprop(node, "panel-hsync", &dts_value, len);
panel->h_back_porch = fdt32_to_cpu(dts_value[0]);
panel->h_pulse_width = fdt32_to_cpu(dts_value[1]);
panel->h_front_porch = fdt32_to_cpu(dts_value[2]);
/* vsync */
if ((len = OF_getproplen(node, "panel-vsync")) <= 0)
return (ENXIO);
OF_getprop(node, "panel-vsync", &dts_value, len);
panel->v_back_porch = fdt32_to_cpu(dts_value[0]);
panel->v_pulse_width = fdt32_to_cpu(dts_value[1]);
panel->v_front_porch = fdt32_to_cpu(dts_value[2]);
/* clk divider */
if ((len = OF_getproplen(node, "panel-clk-div")) <= 0)
return (ENXIO);
OF_getprop(node, "panel-clk-div", &dts_value, len);
panel->clk_div = fdt32_to_cpu(dts_value[0]);
/* backlight pin */
if ((len = OF_getproplen(node, "panel-backlight-pin")) <= 0)
return (ENXIO);
OF_getprop(node, "panel-backlight-pin", &dts_value, len);
panel->backlight_pin = fdt32_to_cpu(dts_value[0]);
return (0);
}
static int
fimd_init(struct fimd_softc *sc)
{
struct panel_info *panel;
int reg;
panel = sc->panel;
/* fb_init */
reg = panel->ivclk | panel->fixvclk;
DWRITE4(sc,VIDCON1,reg);
printf("print to VIDCON0\n");
reg = (VIDCON0_ENVID | VIDCON0_ENVID_F);
reg |= (panel->clkval_f << CLKVAL_F_OFFSET);
WRITE4(sc,VIDCON0,reg);
printf("print to VIDCON0 2nd\n");
reg = (panel->v_pulse_width << VSYNC_PULSE_WIDTH_OFFSET);
reg |= (panel->v_front_porch << V_FRONT_PORCH_OFFSET);
reg |= (panel->v_back_porch << V_BACK_PORCH_OFFSET);
DWRITE4(sc,VIDTCON0,reg);
reg = (panel->h_pulse_width << HSYNC_PULSE_WIDTH_OFFSET);
reg |= (panel->h_front_porch << H_FRONT_PORCH_OFFSET);
reg |= (panel->h_back_porch << H_BACK_PORCH_OFFSET);
DWRITE4(sc,VIDTCON1,reg);
reg = ((panel->width - 1) << HOZVAL_OFFSET);
reg |= ((panel->height - 1) << LINEVAL_OFFSET);
DWRITE4(sc,VIDTCON2,reg);
printf("set pbase\n");
printf("vbase is 0x%08x\n", sc->sc_info.fb_vbase);
printf("pbase is 0x%08x\n", sc->sc_info.fb_pbase);
WRITE4(sc,VIDW00ADD0B0, sc->sc_info.fb_pbase);
WRITE4(sc,VIDW00ADD1B0, sc->sc_info.fb_pbase + sc->sc_info.fb_size);
WRITE4(sc,VIDW00ADD2, panel->width * 2);
reg = ((panel->width - 1) << OSD_RIGHTBOTX_F_OFFSET);
reg |= ((panel->height - 1) << OSD_RIGHTBOTY_F_OFFSET);
WRITE4(sc,VIDOSD0B,reg);
reg = panel->width * panel->height;
WRITE4(sc,VIDOSD0C,reg);
reg = READ4(sc, SHADOWCON);
reg |= CHANNEL0_EN;
reg &= ~(1 << 5); /* disable local path for channel0 */
WRITE4(sc,SHADOWCON,reg);
reg = BPPMODE_F_RGB_16BIT_565 << BPPMODE_F_OFFSET;
reg |= ENWIN_F_ENABLE | HALF_WORD_SWAP_EN; /* Note: swap=0 when ENLOCAL==1 */
reg &= ~ENLOCAL_F; /* use DMA */
WRITE4(sc,WINCON0,reg);
/* Enable DisplayPort Clk */
WRITE4(sc, DPCLKCON, DPCLKCON_EN);
return (0);
}
static int
fimd_attach(device_t dev)
{
struct panel_info panel;
struct fimd_softc *sc;
device_t gpio_dev;
int reg;
sc = device_get_softc(dev);
sc->dev = dev;
if (bus_alloc_resources(dev, fimd_spec, sc->res)) {
device_printf(dev, "could not allocate resources\n");
return (ENXIO);
}
/* Memory interface */
sc->bst = rman_get_bustag(sc->res[0]);
sc->bsh = rman_get_bushandle(sc->res[0]);
sc->bst_disp = rman_get_bustag(sc->res[1]);
sc->bsh_disp = rman_get_bushandle(sc->res[1]);
sc->bst_sysreg = rman_get_bustag(sc->res[2]);
sc->bsh_sysreg = rman_get_bushandle(sc->res[2]);
if (get_panel_info(sc, &panel)) {
device_printf(dev, "Can't get panel info\n");
return (ENXIO);
}
panel.fixvclk = 0;
panel.ivclk = 0;
panel.clkval_f = 2;
sc->panel = &panel;
/* Get the GPIO device, we need this to give power to USB */
gpio_dev = devclass_get_device(devclass_find("gpio"), 0);
if (gpio_dev == NULL) {
/* TODO */
}
reg = bus_space_read_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214);
reg |= FIMDBYPASS_DISP1;
bus_space_write_4(sc->bst_sysreg, sc->bsh_sysreg, 0x214, reg);
sc->sc_info.fb_width = panel.width;
sc->sc_info.fb_height = panel.height;
sc->sc_info.fb_stride = sc->sc_info.fb_width * 2;
sc->sc_info.fb_bpp = sc->sc_info.fb_depth = 16;
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);
#if 0
printf("%dx%d [%d]\n", sc->sc_info.fb_width, sc->sc_info.fb_height,
sc->sc_info.fb_stride);
printf("pbase == 0x%08x\n", sc->sc_info.fb_pbase);
#endif
memset((int8_t *)sc->sc_info.fb_vbase, 0x0, sc->sc_info.fb_size);
fimd_init(sc);
sc->sc_info.fb_name = device_get_nameunit(dev);
/* 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");
if (device_probe_and_attach(sc->sc_fbd) != 0) {
device_printf(sc->dev, "Failed to attach fbd device\n");
}
return (0);
}
static struct fb_info *
fimd_fb_getinfo(device_t dev)
{
struct fimd_softc *sc = device_get_softc(dev);
return (&sc->sc_info);
}
static device_method_t fimd_methods[] = {
DEVMETHOD(device_probe, fimd_probe),
DEVMETHOD(device_attach, fimd_attach),
/* Framebuffer service methods */
DEVMETHOD(fb_getinfo, fimd_fb_getinfo),
{ 0, 0 }
};
static driver_t fimd_driver = {
"fb",
fimd_methods,
sizeof(struct fimd_softc),
};
static devclass_t fimd_devclass;
DRIVER_MODULE(fb, simplebus, fimd_driver, fimd_devclass, 0, 0);

1
sys/arm/samsung/exynos/files.exynos5
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@ -19,5 +19,6 @@ arm/samsung/exynos/exynos5_common.c standard
arm/samsung/exynos/exynos5_machdep.c standard
arm/samsung/exynos/uart.c optional uart
arm/samsung/exynos/ehci_exynos5.c optional ehci
arm/samsung/exynos/exynos5_fimd.c optional vt
#dev/sdhci/sdhci_fdt.c optional sdhci