Add driver for Display Controller.

3 files changed, 454 insertions, 0 deletions

diff --git a/sys/arm/samsung/exynos/exynos5_common.h b/sys/arm/samsung/exynos/exynos5_common.h
new file mode 100644
index 0000000..941d62a
--- /dev/null
+++ b/sys/arm/samsung/exynos/exynos5_common.h
@@ -0,0 +1,40 @@
+/*-
+ * 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)
diff --git a/sys/arm/samsung/exynos/exynos5_fimd.c b/sys/arm/samsung/exynos/exynos5_fimd.c
new file mode 100644
index 0000000..4628f4f
--- /dev/null
+++ b/sys/arm/samsung/exynos/exynos5_fimd.c
@@ -0,0 +1,413 @@
+/*-
+ * 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);
diff --git a/sys/arm/samsung/exynos/files.exynos5 b/sys/arm/samsung/exynos/files.exynos5
index c68b1ff..07d016f 100644
--- a/sys/arm/samsung/exynos/files.exynos5
+++ b/sys/arm/samsung/exynos/files.exynos5
@@ -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