forked from Minki/linux
video: support MIPI-DSI controller driver
Samsung S5PC210 and EXYNOS SoC platform has MIPI-DSI controller and MIPI-DSI based LCD Panel could be used with it. This patch supports MIPI-DSI driver based Samsung SoC chip. LCD panel driver based MIPI-DSI should be registered to MIPI-DSI driver at machine code and LCD panel driver specific function registered to mipi_dsim_ddi structure at lcd panel init function called system init. In the MIPI-DSI driver, find lcd panel driver by using registered lcd panel name, and then initialize lcd panel driver. Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Donghwa Lee
Florian Tobias Schandinat
parent
12fa835024
commit
7258cc14f3
@ -2411,7 +2411,7 @@ config FB_PUV3_UNIGFX
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source "drivers/video/omap/Kconfig"
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source "drivers/video/omap2/Kconfig"
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source "drivers/video/exynos/Kconfig"
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source "drivers/video/backlight/Kconfig"
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if VT
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@ -15,6 +15,8 @@ obj-$(CONFIG_VT) += console/
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obj-$(CONFIG_LOGO) += logo/
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obj-y += backlight/
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obj-$(CONFIG_EXYNOS_VIDEO) += exynos/
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obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o
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obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o
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obj-$(CONFIG_FB_CFB_IMAGEBLIT) += cfbimgblt.o
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22
drivers/video/exynos/Kconfig
Normal file
22
drivers/video/exynos/Kconfig
Normal file
@ -0,0 +1,22 @@
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#
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# Exynos Video configuration
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#
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menuconfig EXYNOS_VIDEO
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bool "Exynos Video driver support"
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help
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This enables support for EXYNOS Video device.
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if EXYNOS_VIDEO
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#
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# MIPI DSI driver
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#
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config EXYNOS_MIPI_DSI
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bool "EXYNOS MIPI DSI driver support."
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depends on (ARCH_S5PV210 || ARCH_EXYNOS)
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help
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This enables support for MIPI-DSI device.
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endif # EXYNOS_VIDEO
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6
drivers/video/exynos/Makefile
Normal file
6
drivers/video/exynos/Makefile
Normal file
@ -0,0 +1,6 @@
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#
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# Makefile for the exynos video drivers.
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#
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obj-$(CONFIG_EXYNOS_MIPI_DSI) += exynos_mipi_dsi.o exynos_mipi_dsi_common.o \
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exynos_mipi_dsi_lowlevel.o
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600
drivers/video/exynos/exynos_mipi_dsi.c
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600
drivers/video/exynos/exynos_mipi_dsi.c
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@ -0,0 +1,600 @@
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/* linux/drivers/video/exynos/exynos_mipi_dsi.c
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*
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* Samsung SoC MIPI-DSIM driver.
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd
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*
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* InKi Dae, <inki.dae@samsung.com>
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* Donghwa Lee, <dh09.lee@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/clk.h>
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#include <linux/mutex.h>
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#include <linux/wait.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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#include <linux/fb.h>
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#include <linux/ctype.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <linux/memory.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/notifier.h>
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#include <linux/regulator/consumer.h>
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#include <linux/pm_runtime.h>
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#include <video/exynos_mipi_dsim.h>
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#include <plat/fb.h>
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#include "exynos_mipi_dsi_common.h"
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#include "exynos_mipi_dsi_lowlevel.h"
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struct mipi_dsim_ddi {
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int bus_id;
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struct list_head list;
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struct mipi_dsim_lcd_device *dsim_lcd_dev;
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struct mipi_dsim_lcd_driver *dsim_lcd_drv;
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};
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static LIST_HEAD(dsim_ddi_list);
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static DEFINE_MUTEX(mipi_dsim_lock);
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static struct mipi_dsim_platform_data *to_dsim_plat(struct platform_device
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*pdev)
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{
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return pdev->dev.platform_data;
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}
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static struct regulator_bulk_data supplies[] = {
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{ .supply = "vdd10", },
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{ .supply = "vdd18", },
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};
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static int exynos_mipi_regulator_enable(struct mipi_dsim_device *dsim)
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{
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int ret;
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mutex_lock(&dsim->lock);
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ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
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mutex_unlock(&dsim->lock);
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return ret;
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}
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static int exynos_mipi_regulator_disable(struct mipi_dsim_device *dsim)
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{
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int ret;
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mutex_lock(&dsim->lock);
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ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies);
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mutex_unlock(&dsim->lock);
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return ret;
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}
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/* update all register settings to MIPI DSI controller. */
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static void exynos_mipi_update_cfg(struct mipi_dsim_device *dsim)
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{
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/*
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* data from Display controller(FIMD) is not transferred in video mode
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* but in case of command mode, all settings is not updated to
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* registers.
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*/
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exynos_mipi_dsi_stand_by(dsim, 0);
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exynos_mipi_dsi_init_dsim(dsim);
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exynos_mipi_dsi_init_link(dsim);
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exynos_mipi_dsi_set_hs_enable(dsim);
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/* set display timing. */
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exynos_mipi_dsi_set_display_mode(dsim, dsim->dsim_config);
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/*
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* data from Display controller(FIMD) is transferred in video mode
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* but in case of command mode, all settigs is updated to registers.
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*/
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exynos_mipi_dsi_stand_by(dsim, 1);
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}
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static int exynos_mipi_dsi_early_blank_mode(struct mipi_dsim_device *dsim,
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int power)
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{
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struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
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struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
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switch (power) {
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case FB_BLANK_POWERDOWN:
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if (dsim->suspended)
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return 0;
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if (client_drv && client_drv->suspend)
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client_drv->suspend(client_dev);
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clk_disable(dsim->clock);
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exynos_mipi_regulator_disable(dsim);
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dsim->suspended = true;
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break;
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default:
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break;
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}
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return 0;
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}
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static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power)
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{
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struct platform_device *pdev = to_platform_device(dsim->dev);
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struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
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struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
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switch (power) {
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case FB_BLANK_UNBLANK:
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if (!dsim->suspended)
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return 0;
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/* lcd panel power on. */
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if (client_drv && client_drv->power_on)
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client_drv->power_on(client_dev, 1);
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exynos_mipi_regulator_disable(dsim);
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/* enable MIPI-DSI PHY. */
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if (dsim->pd->phy_enable)
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dsim->pd->phy_enable(pdev, true);
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clk_enable(dsim->clock);
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exynos_mipi_update_cfg(dsim);
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/* set lcd panel sequence commands. */
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if (client_drv && client_drv->set_sequence)
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client_drv->set_sequence(client_dev);
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dsim->suspended = false;
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break;
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case FB_BLANK_NORMAL:
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/* TODO. */
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break;
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default:
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break;
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}
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return 0;
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}
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int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device *lcd_dev)
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{
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struct mipi_dsim_ddi *dsim_ddi;
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if (!lcd_dev->name) {
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pr_err("dsim_lcd_device name is NULL.\n");
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return -EFAULT;
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}
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dsim_ddi = kzalloc(sizeof(struct mipi_dsim_ddi), GFP_KERNEL);
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if (!dsim_ddi) {
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pr_err("failed to allocate dsim_ddi object.\n");
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return -ENOMEM;
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}
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dsim_ddi->dsim_lcd_dev = lcd_dev;
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mutex_lock(&mipi_dsim_lock);
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list_add_tail(&dsim_ddi->list, &dsim_ddi_list);
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mutex_unlock(&mipi_dsim_lock);
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return 0;
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}
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struct mipi_dsim_ddi *exynos_mipi_dsi_find_lcd_device(struct mipi_dsim_lcd_driver *lcd_drv)
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{
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struct mipi_dsim_ddi *dsim_ddi, *next;
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struct mipi_dsim_lcd_device *lcd_dev;
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mutex_lock(&mipi_dsim_lock);
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list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
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if (!dsim_ddi)
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goto out;
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lcd_dev = dsim_ddi->dsim_lcd_dev;
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if (!lcd_dev)
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continue;
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if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0) {
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/**
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* bus_id would be used to identify
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* connected bus.
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*/
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dsim_ddi->bus_id = lcd_dev->bus_id;
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mutex_unlock(&mipi_dsim_lock);
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return dsim_ddi;
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}
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list_del(&dsim_ddi->list);
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kfree(dsim_ddi);
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}
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out:
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mutex_unlock(&mipi_dsim_lock);
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return NULL;
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}
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int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
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{
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struct mipi_dsim_ddi *dsim_ddi;
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if (!lcd_drv->name) {
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pr_err("dsim_lcd_driver name is NULL.\n");
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return -EFAULT;
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}
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dsim_ddi = exynos_mipi_dsi_find_lcd_device(lcd_drv);
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if (!dsim_ddi) {
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pr_err("mipi_dsim_ddi object not found.\n");
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return -EFAULT;
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}
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dsim_ddi->dsim_lcd_drv = lcd_drv;
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pr_info("registered panel driver(%s) to mipi-dsi driver.\n",
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lcd_drv->name);
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return 0;
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}
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struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi(struct mipi_dsim_device *dsim,
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const char *name)
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{
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struct mipi_dsim_ddi *dsim_ddi, *next;
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struct mipi_dsim_lcd_driver *lcd_drv;
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struct mipi_dsim_lcd_device *lcd_dev;
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int ret;
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mutex_lock(&dsim->lock);
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list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
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lcd_drv = dsim_ddi->dsim_lcd_drv;
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lcd_dev = dsim_ddi->dsim_lcd_dev;
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if (!lcd_drv || !lcd_dev ||
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(dsim->id != dsim_ddi->bus_id))
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continue;
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dev_dbg(dsim->dev, "lcd_drv->id = %d, lcd_dev->id = %d\n",
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lcd_drv->id, lcd_dev->id);
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dev_dbg(dsim->dev, "lcd_dev->bus_id = %d, dsim->id = %d\n",
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lcd_dev->bus_id, dsim->id);
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if ((strcmp(lcd_drv->name, name) == 0)) {
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lcd_dev->master = dsim;
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lcd_dev->dev.parent = dsim->dev;
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dev_set_name(&lcd_dev->dev, "%s", lcd_drv->name);
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ret = device_register(&lcd_dev->dev);
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if (ret < 0) {
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dev_err(dsim->dev,
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"can't register %s, status %d\n",
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dev_name(&lcd_dev->dev), ret);
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mutex_unlock(&dsim->lock);
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return NULL;
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}
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dsim->dsim_lcd_dev = lcd_dev;
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dsim->dsim_lcd_drv = lcd_drv;
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mutex_unlock(&dsim->lock);
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return dsim_ddi;
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}
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}
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mutex_unlock(&dsim->lock);
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return NULL;
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}
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/* define MIPI-DSI Master operations. */
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static struct mipi_dsim_master_ops master_ops = {
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.cmd_read = exynos_mipi_dsi_rd_data,
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.cmd_write = exynos_mipi_dsi_wr_data,
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.get_dsim_frame_done = exynos_mipi_dsi_get_frame_done_status,
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.clear_dsim_frame_done = exynos_mipi_dsi_clear_frame_done,
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.set_early_blank_mode = exynos_mipi_dsi_early_blank_mode,
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.set_blank_mode = exynos_mipi_dsi_blank_mode,
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};
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static int exynos_mipi_dsi_probe(struct platform_device *pdev)
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{
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struct resource *res;
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struct mipi_dsim_device *dsim;
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struct mipi_dsim_config *dsim_config;
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struct mipi_dsim_platform_data *dsim_pd;
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struct mipi_dsim_ddi *dsim_ddi;
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int ret = -EINVAL;
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dsim = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
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if (!dsim) {
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dev_err(&pdev->dev, "failed to allocate dsim object.\n");
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return -ENOMEM;
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}
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dsim->pd = to_dsim_plat(pdev);
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dsim->dev = &pdev->dev;
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dsim->id = pdev->id;
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/* get mipi_dsim_platform_data. */
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dsim_pd = (struct mipi_dsim_platform_data *)dsim->pd;
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if (dsim_pd == NULL) {
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dev_err(&pdev->dev, "failed to get platform data for dsim.\n");
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goto err_clock_get;
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}
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/* get mipi_dsim_config. */
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dsim_config = dsim_pd->dsim_config;
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if (dsim_config == NULL) {
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dev_err(&pdev->dev, "failed to get dsim config data.\n");
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goto err_clock_get;
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}
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dsim->dsim_config = dsim_config;
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dsim->master_ops = &master_ops;
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mutex_init(&dsim->lock);
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ret = regulator_bulk_get(&pdev->dev, ARRAY_SIZE(supplies), supplies);
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if (ret) {
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dev_err(&pdev->dev, "Failed to get regulators: %d\n", ret);
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goto err_clock_get;
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}
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dsim->clock = clk_get(&pdev->dev, "dsim0");
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if (IS_ERR(dsim->clock)) {
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dev_err(&pdev->dev, "failed to get dsim clock source\n");
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goto err_clock_get;
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}
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clk_enable(dsim->clock);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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dev_err(&pdev->dev, "failed to get io memory region\n");
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goto err_platform_get;
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}
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dsim->res = request_mem_region(res->start, resource_size(res),
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dev_name(&pdev->dev));
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if (!dsim->res) {
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dev_err(&pdev->dev, "failed to request io memory region\n");
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ret = -ENOMEM;
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goto err_mem_region;
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}
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dsim->reg_base = ioremap(res->start, resource_size(res));
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if (!dsim->reg_base) {
|
||||
dev_err(&pdev->dev, "failed to remap io region\n");
|
||||
ret = -ENOMEM;
|
||||
goto err_ioremap;
|
||||
}
|
||||
|
||||
mutex_init(&dsim->lock);
|
||||
|
||||
/* bind lcd ddi matched with panel name. */
|
||||
dsim_ddi = exynos_mipi_dsi_bind_lcd_ddi(dsim, dsim_pd->lcd_panel_name);
|
||||
if (!dsim_ddi) {
|
||||
dev_err(&pdev->dev, "mipi_dsim_ddi object not found.\n");
|
||||
goto err_bind;
|
||||
}
|
||||
|
||||
dsim->irq = platform_get_irq(pdev, 0);
|
||||
if (dsim->irq < 0) {
|
||||
dev_err(&pdev->dev, "failed to request dsim irq resource\n");
|
||||
ret = -EINVAL;
|
||||
goto err_platform_get_irq;
|
||||
}
|
||||
|
||||
ret = request_irq(dsim->irq, exynos_mipi_dsi_interrupt_handler,
|
||||
IRQF_SHARED, pdev->name, dsim);
|
||||
if (ret != 0) {
|
||||
dev_err(&pdev->dev, "failed to request dsim irq\n");
|
||||
ret = -EINVAL;
|
||||
goto err_bind;
|
||||
}
|
||||
|
||||
init_completion(&dsim_wr_comp);
|
||||
init_completion(&dsim_rd_comp);
|
||||
|
||||
/* enable interrupt */
|
||||
exynos_mipi_dsi_init_interrupt(dsim);
|
||||
|
||||
/* initialize mipi-dsi client(lcd panel). */
|
||||
if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->probe)
|
||||
dsim_ddi->dsim_lcd_drv->probe(dsim_ddi->dsim_lcd_dev);
|
||||
|
||||
/* in case that mipi got enabled at bootloader. */
|
||||
if (dsim_pd->enabled)
|
||||
goto out;
|
||||
|
||||
/* lcd panel power on. */
|
||||
if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->power_on)
|
||||
dsim_ddi->dsim_lcd_drv->power_on(dsim_ddi->dsim_lcd_dev, 1);
|
||||
|
||||
exynos_mipi_regulator_enable(dsim);
|
||||
|
||||
/* enable MIPI-DSI PHY. */
|
||||
if (dsim->pd->phy_enable)
|
||||
dsim->pd->phy_enable(pdev, true);
|
||||
|
||||
exynos_mipi_update_cfg(dsim);
|
||||
|
||||
/* set lcd panel sequence commands. */
|
||||
if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->set_sequence)
|
||||
dsim_ddi->dsim_lcd_drv->set_sequence(dsim_ddi->dsim_lcd_dev);
|
||||
|
||||
dsim->suspended = false;
|
||||
|
||||
out:
|
||||
platform_set_drvdata(pdev, dsim);
|
||||
|
||||
dev_dbg(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
|
||||
(dsim_config->e_interface == DSIM_COMMAND) ?
|
||||
"CPU" : "RGB");
|
||||
|
||||
return 0;
|
||||
|
||||
err_bind:
|
||||
iounmap(dsim->reg_base);
|
||||
|
||||
err_ioremap:
|
||||
release_mem_region(dsim->res->start, resource_size(dsim->res));
|
||||
|
||||
err_mem_region:
|
||||
release_resource(dsim->res);
|
||||
|
||||
err_platform_get:
|
||||
clk_disable(dsim->clock);
|
||||
clk_put(dsim->clock);
|
||||
err_clock_get:
|
||||
kfree(dsim);
|
||||
|
||||
err_platform_get_irq:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __devexit exynos_mipi_dsi_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct mipi_dsim_device *dsim = platform_get_drvdata(pdev);
|
||||
struct mipi_dsim_ddi *dsim_ddi, *next;
|
||||
struct mipi_dsim_lcd_driver *dsim_lcd_drv;
|
||||
|
||||
iounmap(dsim->reg_base);
|
||||
|
||||
clk_disable(dsim->clock);
|
||||
clk_put(dsim->clock);
|
||||
|
||||
release_resource(dsim->res);
|
||||
release_mem_region(dsim->res->start, resource_size(dsim->res));
|
||||
|
||||
list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
|
||||
if (dsim_ddi) {
|
||||
if (dsim->id != dsim_ddi->bus_id)
|
||||
continue;
|
||||
|
||||
dsim_lcd_drv = dsim_ddi->dsim_lcd_drv;
|
||||
|
||||
if (dsim_lcd_drv->remove)
|
||||
dsim_lcd_drv->remove(dsim_ddi->dsim_lcd_dev);
|
||||
|
||||
kfree(dsim_ddi);
|
||||
}
|
||||
}
|
||||
|
||||
regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
|
||||
kfree(dsim);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int exynos_mipi_dsi_suspend(struct platform_device *pdev,
|
||||
pm_message_t state)
|
||||
{
|
||||
struct mipi_dsim_device *dsim = platform_get_drvdata(pdev);
|
||||
struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
|
||||
struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
|
||||
|
||||
disable_irq(dsim->irq);
|
||||
|
||||
if (dsim->suspended)
|
||||
return 0;
|
||||
|
||||
if (client_drv && client_drv->suspend)
|
||||
client_drv->suspend(client_dev);
|
||||
|
||||
/* enable MIPI-DSI PHY. */
|
||||
if (dsim->pd->phy_enable)
|
||||
dsim->pd->phy_enable(pdev, false);
|
||||
|
||||
clk_disable(dsim->clock);
|
||||
|
||||
exynos_mipi_regulator_disable(dsim);
|
||||
|
||||
dsim->suspended = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_mipi_dsi_resume(struct platform_device *pdev)
|
||||
{
|
||||
struct mipi_dsim_device *dsim = platform_get_drvdata(pdev);
|
||||
struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
|
||||
struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
|
||||
|
||||
enable_irq(dsim->irq);
|
||||
|
||||
if (!dsim->suspended)
|
||||
return 0;
|
||||
|
||||
/* lcd panel power on. */
|
||||
if (client_drv && client_drv->power_on)
|
||||
client_drv->power_on(client_dev, 1);
|
||||
|
||||
exynos_mipi_regulator_enable(dsim);
|
||||
|
||||
/* enable MIPI-DSI PHY. */
|
||||
if (dsim->pd->phy_enable)
|
||||
dsim->pd->phy_enable(pdev, true);
|
||||
|
||||
clk_enable(dsim->clock);
|
||||
|
||||
exynos_mipi_update_cfg(dsim);
|
||||
|
||||
/* set lcd panel sequence commands. */
|
||||
if (client_drv && client_drv->set_sequence)
|
||||
client_drv->set_sequence(client_dev);
|
||||
|
||||
dsim->suspended = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
#else
|
||||
#define exynos_mipi_dsi_suspend NULL
|
||||
#define exynos_mipi_dsi_resume NULL
|
||||
#endif
|
||||
|
||||
static struct platform_driver exynos_mipi_dsi_driver = {
|
||||
.probe = exynos_mipi_dsi_probe,
|
||||
.remove = __devexit_p(exynos_mipi_dsi_remove),
|
||||
.suspend = exynos_mipi_dsi_suspend,
|
||||
.resume = exynos_mipi_dsi_resume,
|
||||
.driver = {
|
||||
.name = "exynos-mipi-dsim",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(exynos_mipi_dsi_driver);
|
||||
|
||||
MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
|
||||
MODULE_DESCRIPTION("Samusung SoC MIPI-DSI driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
896
drivers/video/exynos/exynos_mipi_dsi_common.c
Normal file
896
drivers/video/exynos/exynos_mipi_dsi_common.c
Normal file
@ -0,0 +1,896 @@
|
||||
/* linux/drivers/video/exynos/exynos_mipi_dsi_common.c
|
||||
*
|
||||
* Samsung SoC MIPI-DSI common driver.
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae, <inki.dae@samsung.com>
|
||||
* Donghwa Lee, <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/fb.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/memory.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/kthread.h>
|
||||
|
||||
#include <video/mipi_display.h>
|
||||
#include <video/exynos_mipi_dsim.h>
|
||||
|
||||
#include <mach/map.h>
|
||||
|
||||
#include "exynos_mipi_dsi_regs.h"
|
||||
#include "exynos_mipi_dsi_lowlevel.h"
|
||||
#include "exynos_mipi_dsi_common.h"
|
||||
|
||||
#define MIPI_FIFO_TIMEOUT msecs_to_jiffies(250)
|
||||
#define MIPI_RX_FIFO_READ_DONE 0x30800002
|
||||
#define MIPI_MAX_RX_FIFO 20
|
||||
#define MHZ (1000 * 1000)
|
||||
#define FIN_HZ (24 * MHZ)
|
||||
|
||||
#define DFIN_PLL_MIN_HZ (6 * MHZ)
|
||||
#define DFIN_PLL_MAX_HZ (12 * MHZ)
|
||||
|
||||
#define DFVCO_MIN_HZ (500 * MHZ)
|
||||
#define DFVCO_MAX_HZ (1000 * MHZ)
|
||||
|
||||
#define TRY_GET_FIFO_TIMEOUT (5000 * 2)
|
||||
#define TRY_FIFO_CLEAR (10)
|
||||
|
||||
/* MIPI-DSIM status types. */
|
||||
enum {
|
||||
DSIM_STATE_INIT, /* should be initialized. */
|
||||
DSIM_STATE_STOP, /* CPU and LCDC are LP mode. */
|
||||
DSIM_STATE_HSCLKEN, /* HS clock was enabled. */
|
||||
DSIM_STATE_ULPS
|
||||
};
|
||||
|
||||
/* define DSI lane types. */
|
||||
enum {
|
||||
DSIM_LANE_CLOCK = (1 << 0),
|
||||
DSIM_LANE_DATA0 = (1 << 1),
|
||||
DSIM_LANE_DATA1 = (1 << 2),
|
||||
DSIM_LANE_DATA2 = (1 << 3),
|
||||
DSIM_LANE_DATA3 = (1 << 4)
|
||||
};
|
||||
|
||||
static unsigned int dpll_table[15] = {
|
||||
100, 120, 170, 220, 270,
|
||||
320, 390, 450, 510, 560,
|
||||
640, 690, 770, 870, 950
|
||||
};
|
||||
|
||||
irqreturn_t exynos_mipi_dsi_interrupt_handler(int irq, void *dev_id)
|
||||
{
|
||||
unsigned int intsrc = 0;
|
||||
unsigned int intmsk = 0;
|
||||
struct mipi_dsim_device *dsim = NULL;
|
||||
|
||||
dsim = dev_id;
|
||||
if (!dsim) {
|
||||
dev_dbg(dsim->dev, KERN_ERR "%s:error: wrong parameter\n",
|
||||
__func__);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
intsrc = exynos_mipi_dsi_read_interrupt(dsim);
|
||||
intmsk = exynos_mipi_dsi_read_interrupt_mask(dsim);
|
||||
|
||||
intmsk = ~(intmsk) & intsrc;
|
||||
|
||||
switch (intmsk) {
|
||||
case INTMSK_RX_DONE:
|
||||
complete(&dsim_rd_comp);
|
||||
dev_dbg(dsim->dev, "MIPI INTMSK_RX_DONE\n");
|
||||
break;
|
||||
case INTMSK_FIFO_EMPTY:
|
||||
complete(&dsim_wr_comp);
|
||||
dev_dbg(dsim->dev, "MIPI INTMSK_FIFO_EMPTY\n");
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
exynos_mipi_dsi_clear_interrupt(dsim, intmsk);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
/*
|
||||
* write long packet to mipi dsi slave
|
||||
* @dsim: mipi dsim device structure.
|
||||
* @data0: packet data to send.
|
||||
* @data1: size of packet data
|
||||
*/
|
||||
static void exynos_mipi_dsi_long_data_wr(struct mipi_dsim_device *dsim,
|
||||
const unsigned char *data0, unsigned int data_size)
|
||||
{
|
||||
unsigned int data_cnt = 0, payload = 0;
|
||||
|
||||
/* in case that data count is more then 4 */
|
||||
for (data_cnt = 0; data_cnt < data_size; data_cnt += 4) {
|
||||
/*
|
||||
* after sending 4bytes per one time,
|
||||
* send remainder data less then 4.
|
||||
*/
|
||||
if ((data_size - data_cnt) < 4) {
|
||||
if ((data_size - data_cnt) == 3) {
|
||||
payload = data0[data_cnt] |
|
||||
data0[data_cnt + 1] << 8 |
|
||||
data0[data_cnt + 2] << 16;
|
||||
dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
|
||||
payload, data0[data_cnt],
|
||||
data0[data_cnt + 1],
|
||||
data0[data_cnt + 2]);
|
||||
} else if ((data_size - data_cnt) == 2) {
|
||||
payload = data0[data_cnt] |
|
||||
data0[data_cnt + 1] << 8;
|
||||
dev_dbg(dsim->dev,
|
||||
"count = 2 payload = %x, %x %x\n", payload,
|
||||
data0[data_cnt],
|
||||
data0[data_cnt + 1]);
|
||||
} else if ((data_size - data_cnt) == 1) {
|
||||
payload = data0[data_cnt];
|
||||
}
|
||||
|
||||
exynos_mipi_dsi_wr_tx_data(dsim, payload);
|
||||
/* send 4bytes per one time. */
|
||||
} else {
|
||||
payload = data0[data_cnt] |
|
||||
data0[data_cnt + 1] << 8 |
|
||||
data0[data_cnt + 2] << 16 |
|
||||
data0[data_cnt + 3] << 24;
|
||||
|
||||
dev_dbg(dsim->dev,
|
||||
"count = 4 payload = %x, %x %x %x %x\n",
|
||||
payload, *(u8 *)(data0 + data_cnt),
|
||||
data0[data_cnt + 1],
|
||||
data0[data_cnt + 2],
|
||||
data0[data_cnt + 3]);
|
||||
|
||||
exynos_mipi_dsi_wr_tx_data(dsim, payload);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
const unsigned char *data0, unsigned int data_size)
|
||||
{
|
||||
unsigned int check_rx_ack = 0;
|
||||
|
||||
if (dsim->state == DSIM_STATE_ULPS) {
|
||||
dev_err(dsim->dev, "state is ULPS.\n");
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* FIXME!!! why does it need this delay? */
|
||||
msleep(20);
|
||||
|
||||
mutex_lock(&dsim->lock);
|
||||
|
||||
switch (data_id) {
|
||||
/* short packet types of packet types for command. */
|
||||
case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
|
||||
case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
|
||||
case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
|
||||
case MIPI_DSI_DCS_SHORT_WRITE:
|
||||
case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
|
||||
case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE:
|
||||
exynos_mipi_dsi_wr_tx_header(dsim, data_id, data0[0], data0[1]);
|
||||
if (check_rx_ack) {
|
||||
/* process response func should be implemented */
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
} else {
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* general command */
|
||||
case MIPI_DSI_COLOR_MODE_OFF:
|
||||
case MIPI_DSI_COLOR_MODE_ON:
|
||||
case MIPI_DSI_SHUTDOWN_PERIPHERAL:
|
||||
case MIPI_DSI_TURN_ON_PERIPHERAL:
|
||||
exynos_mipi_dsi_wr_tx_header(dsim, data_id, data0[0], data0[1]);
|
||||
if (check_rx_ack) {
|
||||
/* process response func should be implemented. */
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
} else {
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* packet types for video data */
|
||||
case MIPI_DSI_V_SYNC_START:
|
||||
case MIPI_DSI_V_SYNC_END:
|
||||
case MIPI_DSI_H_SYNC_START:
|
||||
case MIPI_DSI_H_SYNC_END:
|
||||
case MIPI_DSI_END_OF_TRANSMISSION:
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
|
||||
/* long packet type and null packet */
|
||||
case MIPI_DSI_NULL_PACKET:
|
||||
case MIPI_DSI_BLANKING_PACKET:
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
case MIPI_DSI_GENERIC_LONG_WRITE:
|
||||
case MIPI_DSI_DCS_LONG_WRITE:
|
||||
{
|
||||
unsigned int size, payload = 0;
|
||||
INIT_COMPLETION(dsim_wr_comp);
|
||||
|
||||
size = data_size * 4;
|
||||
|
||||
/* if data count is less then 4, then send 3bytes data. */
|
||||
if (data_size < 4) {
|
||||
payload = data0[0] |
|
||||
data0[1] << 8 |
|
||||
data0[2] << 16;
|
||||
|
||||
exynos_mipi_dsi_wr_tx_data(dsim, payload);
|
||||
|
||||
dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
|
||||
data_size, payload, data0[0],
|
||||
data0[1], data0[2]);
|
||||
|
||||
/* in case that data count is more then 4 */
|
||||
} else
|
||||
exynos_mipi_dsi_long_data_wr(dsim, data0, data_size);
|
||||
|
||||
/* put data into header fifo */
|
||||
exynos_mipi_dsi_wr_tx_header(dsim, data_id, data_size & 0xff,
|
||||
(data_size & 0xff00) >> 8);
|
||||
|
||||
if (!wait_for_completion_interruptible_timeout(&dsim_wr_comp,
|
||||
MIPI_FIFO_TIMEOUT)) {
|
||||
dev_warn(dsim->dev, "command write timeout.\n");
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
if (check_rx_ack) {
|
||||
/* process response func should be implemented. */
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
} else {
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
/* packet typo for video data */
|
||||
case MIPI_DSI_PACKED_PIXEL_STREAM_16:
|
||||
case MIPI_DSI_PACKED_PIXEL_STREAM_18:
|
||||
case MIPI_DSI_PIXEL_STREAM_3BYTE_18:
|
||||
case MIPI_DSI_PACKED_PIXEL_STREAM_24:
|
||||
if (check_rx_ack) {
|
||||
/* process response func should be implemented. */
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
} else {
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
default:
|
||||
dev_warn(dsim->dev,
|
||||
"data id %x is not supported current DSI spec.\n",
|
||||
data_id);
|
||||
|
||||
mutex_unlock(&dsim->lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned int exynos_mipi_dsi_long_data_rd(struct mipi_dsim_device *dsim,
|
||||
unsigned int req_size, unsigned int rx_data, u8 *rx_buf)
|
||||
{
|
||||
unsigned int rcv_pkt, i, j;
|
||||
u16 rxsize;
|
||||
|
||||
/* for long packet */
|
||||
rxsize = (u16)((rx_data & 0x00ffff00) >> 8);
|
||||
dev_dbg(dsim->dev, "mipi dsi rx size : %d\n", rxsize);
|
||||
if (rxsize != req_size) {
|
||||
dev_dbg(dsim->dev,
|
||||
"received size mismatch received: %d, requested: %d\n",
|
||||
rxsize, req_size);
|
||||
goto err;
|
||||
}
|
||||
|
||||
for (i = 0; i < (rxsize >> 2); i++) {
|
||||
rcv_pkt = exynos_mipi_dsi_rd_rx_fifo(dsim);
|
||||
dev_dbg(dsim->dev, "received pkt : %08x\n", rcv_pkt);
|
||||
for (j = 0; j < 4; j++) {
|
||||
rx_buf[(i * 4) + j] =
|
||||
(u8)(rcv_pkt >> (j * 8)) & 0xff;
|
||||
dev_dbg(dsim->dev, "received value : %02x\n",
|
||||
(rcv_pkt >> (j * 8)) & 0xff);
|
||||
}
|
||||
}
|
||||
if (rxsize % 4) {
|
||||
rcv_pkt = exynos_mipi_dsi_rd_rx_fifo(dsim);
|
||||
dev_dbg(dsim->dev, "received pkt : %08x\n", rcv_pkt);
|
||||
for (j = 0; j < (rxsize % 4); j++) {
|
||||
rx_buf[(i * 4) + j] =
|
||||
(u8)(rcv_pkt >> (j * 8)) & 0xff;
|
||||
dev_dbg(dsim->dev, "received value : %02x\n",
|
||||
(rcv_pkt >> (j * 8)) & 0xff);
|
||||
}
|
||||
}
|
||||
|
||||
return rxsize;
|
||||
|
||||
err:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static unsigned int exynos_mipi_dsi_response_size(unsigned int req_size)
|
||||
{
|
||||
switch (req_size) {
|
||||
case 1:
|
||||
return MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_1BYTE;
|
||||
case 2:
|
||||
return MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_2BYTE;
|
||||
default:
|
||||
return MIPI_DSI_RX_GENERIC_LONG_READ_RESPONSE;
|
||||
}
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
unsigned int data0, unsigned int req_size, u8 *rx_buf)
|
||||
{
|
||||
unsigned int rx_data, rcv_pkt, i;
|
||||
u8 response = 0;
|
||||
u16 rxsize;
|
||||
|
||||
if (dsim->state == DSIM_STATE_ULPS) {
|
||||
dev_err(dsim->dev, "state is ULPS.\n");
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* FIXME!!! */
|
||||
msleep(20);
|
||||
|
||||
mutex_lock(&dsim->lock);
|
||||
INIT_COMPLETION(dsim_rd_comp);
|
||||
exynos_mipi_dsi_rd_tx_header(dsim,
|
||||
MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE, req_size);
|
||||
|
||||
response = exynos_mipi_dsi_response_size(req_size);
|
||||
|
||||
switch (data_id) {
|
||||
case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
|
||||
case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
|
||||
case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
|
||||
case MIPI_DSI_DCS_READ:
|
||||
exynos_mipi_dsi_rd_tx_header(dsim,
|
||||
data_id, data0);
|
||||
/* process response func should be implemented. */
|
||||
break;
|
||||
default:
|
||||
dev_warn(dsim->dev,
|
||||
"data id %x is not supported current DSI spec.\n",
|
||||
data_id);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!wait_for_completion_interruptible_timeout(&dsim_rd_comp,
|
||||
MIPI_FIFO_TIMEOUT)) {
|
||||
pr_err("RX done interrupt timeout\n");
|
||||
mutex_unlock(&dsim->lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
msleep(20);
|
||||
|
||||
rx_data = exynos_mipi_dsi_rd_rx_fifo(dsim);
|
||||
|
||||
if ((u8)(rx_data & 0xff) != response) {
|
||||
printk(KERN_ERR
|
||||
"mipi dsi wrong response rx_data : %x, response:%x\n",
|
||||
rx_data, response);
|
||||
goto clear_rx_fifo;
|
||||
}
|
||||
|
||||
if (req_size <= 2) {
|
||||
/* for short packet */
|
||||
for (i = 0; i < req_size; i++)
|
||||
rx_buf[i] = (rx_data >> (8 + (i * 8))) & 0xff;
|
||||
rxsize = req_size;
|
||||
} else {
|
||||
/* for long packet */
|
||||
rxsize = exynos_mipi_dsi_long_data_rd(dsim, req_size, rx_data,
|
||||
rx_buf);
|
||||
if (rxsize != req_size)
|
||||
goto clear_rx_fifo;
|
||||
}
|
||||
|
||||
rcv_pkt = exynos_mipi_dsi_rd_rx_fifo(dsim);
|
||||
|
||||
msleep(20);
|
||||
|
||||
if (rcv_pkt != MIPI_RX_FIFO_READ_DONE) {
|
||||
dev_info(dsim->dev,
|
||||
"Can't found RX FIFO READ DONE FLAG : %x\n", rcv_pkt);
|
||||
goto clear_rx_fifo;
|
||||
}
|
||||
|
||||
mutex_unlock(&dsim->lock);
|
||||
|
||||
return rxsize;
|
||||
|
||||
clear_rx_fifo:
|
||||
i = 0;
|
||||
while (1) {
|
||||
rcv_pkt = exynos_mipi_dsi_rd_rx_fifo(dsim);
|
||||
if ((rcv_pkt == MIPI_RX_FIFO_READ_DONE)
|
||||
|| (i > MIPI_MAX_RX_FIFO))
|
||||
break;
|
||||
dev_dbg(dsim->dev,
|
||||
"mipi dsi clear rx fifo : %08x\n", rcv_pkt);
|
||||
i++;
|
||||
}
|
||||
dev_info(dsim->dev,
|
||||
"mipi dsi rx done count : %d, rcv_pkt : %08x\n", i, rcv_pkt);
|
||||
|
||||
mutex_unlock(&dsim->lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_mipi_dsi_pll_on(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
int sw_timeout;
|
||||
|
||||
if (enable) {
|
||||
sw_timeout = 1000;
|
||||
|
||||
exynos_mipi_dsi_enable_pll(dsim, 1);
|
||||
while (1) {
|
||||
sw_timeout--;
|
||||
if (exynos_mipi_dsi_is_pll_stable(dsim))
|
||||
return 0;
|
||||
if (sw_timeout == 0)
|
||||
return -EINVAL;
|
||||
}
|
||||
} else
|
||||
exynos_mipi_dsi_enable_pll(dsim, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned long exynos_mipi_dsi_change_pll(struct mipi_dsim_device *dsim,
|
||||
unsigned int pre_divider, unsigned int main_divider,
|
||||
unsigned int scaler)
|
||||
{
|
||||
unsigned long dfin_pll, dfvco, dpll_out;
|
||||
unsigned int i, freq_band = 0xf;
|
||||
|
||||
dfin_pll = (FIN_HZ / pre_divider);
|
||||
|
||||
/******************************************************
|
||||
* Serial Clock(=ByteClk X 8) FreqBand[3:0] *
|
||||
******************************************************
|
||||
* ~ 99.99 MHz 0000
|
||||
* 100 ~ 119.99 MHz 0001
|
||||
* 120 ~ 159.99 MHz 0010
|
||||
* 160 ~ 199.99 MHz 0011
|
||||
* 200 ~ 239.99 MHz 0100
|
||||
* 140 ~ 319.99 MHz 0101
|
||||
* 320 ~ 389.99 MHz 0110
|
||||
* 390 ~ 449.99 MHz 0111
|
||||
* 450 ~ 509.99 MHz 1000
|
||||
* 510 ~ 559.99 MHz 1001
|
||||
* 560 ~ 639.99 MHz 1010
|
||||
* 640 ~ 689.99 MHz 1011
|
||||
* 690 ~ 769.99 MHz 1100
|
||||
* 770 ~ 869.99 MHz 1101
|
||||
* 870 ~ 949.99 MHz 1110
|
||||
* 950 ~ 1000 MHz 1111
|
||||
******************************************************/
|
||||
if (dfin_pll < DFIN_PLL_MIN_HZ || dfin_pll > DFIN_PLL_MAX_HZ) {
|
||||
dev_warn(dsim->dev, "fin_pll range should be 6MHz ~ 12MHz\n");
|
||||
exynos_mipi_dsi_enable_afc(dsim, 0, 0);
|
||||
} else {
|
||||
if (dfin_pll < 7 * MHZ)
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x1);
|
||||
else if (dfin_pll < 8 * MHZ)
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x0);
|
||||
else if (dfin_pll < 9 * MHZ)
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x3);
|
||||
else if (dfin_pll < 10 * MHZ)
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x2);
|
||||
else if (dfin_pll < 11 * MHZ)
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x5);
|
||||
else
|
||||
exynos_mipi_dsi_enable_afc(dsim, 1, 0x4);
|
||||
}
|
||||
|
||||
dfvco = dfin_pll * main_divider;
|
||||
dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
|
||||
dfvco, dfin_pll, main_divider);
|
||||
if (dfvco < DFVCO_MIN_HZ || dfvco > DFVCO_MAX_HZ)
|
||||
dev_warn(dsim->dev, "fvco range should be 500MHz ~ 1000MHz\n");
|
||||
|
||||
dpll_out = dfvco / (1 << scaler);
|
||||
dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
|
||||
dpll_out, dfvco, scaler);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(dpll_table); i++) {
|
||||
if (dpll_out < dpll_table[i] * MHZ) {
|
||||
freq_band = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
|
||||
|
||||
exynos_mipi_dsi_pll_freq(dsim, pre_divider, main_divider, scaler);
|
||||
|
||||
exynos_mipi_dsi_hs_zero_ctrl(dsim, 0);
|
||||
exynos_mipi_dsi_prep_ctrl(dsim, 0);
|
||||
|
||||
/* Freq Band */
|
||||
exynos_mipi_dsi_pll_freq_band(dsim, freq_band);
|
||||
|
||||
/* Stable time */
|
||||
exynos_mipi_dsi_pll_stable_time(dsim, dsim->dsim_config->pll_stable_time);
|
||||
|
||||
/* Enable PLL */
|
||||
dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
|
||||
(dpll_out / MHZ));
|
||||
|
||||
return dpll_out;
|
||||
}
|
||||
|
||||
static int exynos_mipi_dsi_set_clock(struct mipi_dsim_device *dsim,
|
||||
unsigned int byte_clk_sel, unsigned int enable)
|
||||
{
|
||||
unsigned int esc_div;
|
||||
unsigned long esc_clk_error_rate;
|
||||
unsigned long hs_clk = 0, byte_clk = 0, escape_clk = 0;
|
||||
|
||||
if (enable) {
|
||||
dsim->e_clk_src = byte_clk_sel;
|
||||
|
||||
/* Escape mode clock and byte clock source */
|
||||
exynos_mipi_dsi_set_byte_clock_src(dsim, byte_clk_sel);
|
||||
|
||||
/* DPHY, DSIM Link : D-PHY clock out */
|
||||
if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
|
||||
hs_clk = exynos_mipi_dsi_change_pll(dsim,
|
||||
dsim->dsim_config->p, dsim->dsim_config->m,
|
||||
dsim->dsim_config->s);
|
||||
if (hs_clk == 0) {
|
||||
dev_err(dsim->dev,
|
||||
"failed to get hs clock.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
byte_clk = hs_clk / 8;
|
||||
exynos_mipi_dsi_enable_pll_bypass(dsim, 0);
|
||||
exynos_mipi_dsi_pll_on(dsim, 1);
|
||||
/* DPHY : D-PHY clock out, DSIM link : external clock out */
|
||||
} else if (byte_clk_sel == DSIM_EXT_CLK_DIV8) {
|
||||
dev_warn(dsim->dev, "this project is not support\n");
|
||||
dev_warn(dsim->dev,
|
||||
"external clock source for MIPI DSIM.\n");
|
||||
} else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS) {
|
||||
dev_warn(dsim->dev, "this project is not support\n");
|
||||
dev_warn(dsim->dev,
|
||||
"external clock source for MIPI DSIM\n");
|
||||
}
|
||||
|
||||
/* escape clock divider */
|
||||
esc_div = byte_clk / (dsim->dsim_config->esc_clk);
|
||||
dev_dbg(dsim->dev,
|
||||
"esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
|
||||
esc_div, byte_clk, dsim->dsim_config->esc_clk);
|
||||
if ((byte_clk / esc_div) >= (20 * MHZ) ||
|
||||
(byte_clk / esc_div) >
|
||||
dsim->dsim_config->esc_clk)
|
||||
esc_div += 1;
|
||||
|
||||
escape_clk = byte_clk / esc_div;
|
||||
dev_dbg(dsim->dev,
|
||||
"escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
|
||||
escape_clk, byte_clk, esc_div);
|
||||
|
||||
/* enable escape clock. */
|
||||
exynos_mipi_dsi_enable_byte_clock(dsim, 1);
|
||||
|
||||
/* enable byte clk and escape clock */
|
||||
exynos_mipi_dsi_set_esc_clk_prs(dsim, 1, esc_div);
|
||||
/* escape clock on lane */
|
||||
exynos_mipi_dsi_enable_esc_clk_on_lane(dsim,
|
||||
(DSIM_LANE_CLOCK | dsim->data_lane), 1);
|
||||
|
||||
dev_dbg(dsim->dev, "byte clock is %luMHz\n",
|
||||
(byte_clk / MHZ));
|
||||
dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
|
||||
(dsim->dsim_config->esc_clk / MHZ));
|
||||
dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
|
||||
dev_dbg(dsim->dev, "escape clock is %luMHz\n",
|
||||
((byte_clk / esc_div) / MHZ));
|
||||
|
||||
if ((byte_clk / esc_div) > escape_clk) {
|
||||
esc_clk_error_rate = escape_clk /
|
||||
(byte_clk / esc_div);
|
||||
dev_warn(dsim->dev, "error rate is %lu over.\n",
|
||||
(esc_clk_error_rate / 100));
|
||||
} else if ((byte_clk / esc_div) < (escape_clk)) {
|
||||
esc_clk_error_rate = (byte_clk / esc_div) /
|
||||
escape_clk;
|
||||
dev_warn(dsim->dev, "error rate is %lu under.\n",
|
||||
(esc_clk_error_rate / 100));
|
||||
}
|
||||
} else {
|
||||
exynos_mipi_dsi_enable_esc_clk_on_lane(dsim,
|
||||
(DSIM_LANE_CLOCK | dsim->data_lane), 0);
|
||||
exynos_mipi_dsi_set_esc_clk_prs(dsim, 0, 0);
|
||||
|
||||
/* disable escape clock. */
|
||||
exynos_mipi_dsi_enable_byte_clock(dsim, 0);
|
||||
|
||||
if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
|
||||
exynos_mipi_dsi_pll_on(dsim, 0);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
dsim->state = DSIM_STATE_INIT;
|
||||
|
||||
switch (dsim->dsim_config->e_no_data_lane) {
|
||||
case DSIM_DATA_LANE_1:
|
||||
dsim->data_lane = DSIM_LANE_DATA0;
|
||||
break;
|
||||
case DSIM_DATA_LANE_2:
|
||||
dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
|
||||
break;
|
||||
case DSIM_DATA_LANE_3:
|
||||
dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
|
||||
DSIM_LANE_DATA2;
|
||||
break;
|
||||
case DSIM_DATA_LANE_4:
|
||||
dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
|
||||
DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
|
||||
break;
|
||||
default:
|
||||
dev_info(dsim->dev, "data lane is invalid.\n");
|
||||
return -EINVAL;
|
||||
};
|
||||
|
||||
exynos_mipi_dsi_sw_reset(dsim);
|
||||
exynos_mipi_dsi_func_reset(dsim);
|
||||
|
||||
exynos_mipi_dsi_dp_dn_swap(dsim, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_init_interrupt(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int src = 0;
|
||||
|
||||
src = (INTSRC_SFR_FIFO_EMPTY | INTSRC_RX_DATA_DONE);
|
||||
exynos_mipi_dsi_set_interrupt(dsim, src, 1);
|
||||
|
||||
src = 0;
|
||||
src = ~(INTMSK_RX_DONE | INTMSK_FIFO_EMPTY);
|
||||
exynos_mipi_dsi_set_interrupt_mask(dsim, src, 1);
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_enable_frame_done_int(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
/* enable only frame done interrupt */
|
||||
exynos_mipi_dsi_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_stand_by(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
|
||||
/* consider Main display and Sub display. */
|
||||
|
||||
exynos_mipi_dsi_set_main_stand_by(dsim, enable);
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_set_display_mode(struct mipi_dsim_device *dsim,
|
||||
struct mipi_dsim_config *dsim_config)
|
||||
{
|
||||
struct mipi_dsim_platform_data *dsim_pd;
|
||||
struct fb_videomode *timing;
|
||||
|
||||
dsim_pd = (struct mipi_dsim_platform_data *)dsim->pd;
|
||||
timing = (struct fb_videomode *)dsim_pd->lcd_panel_info;
|
||||
|
||||
/* in case of VIDEO MODE (RGB INTERFACE), it sets polarities. */
|
||||
if (dsim_config->e_interface == (u32) DSIM_VIDEO) {
|
||||
if (dsim_config->auto_vertical_cnt == 0) {
|
||||
exynos_mipi_dsi_set_main_disp_vporch(dsim,
|
||||
dsim_config->cmd_allow,
|
||||
timing->upper_margin,
|
||||
timing->lower_margin);
|
||||
exynos_mipi_dsi_set_main_disp_hporch(dsim,
|
||||
timing->left_margin,
|
||||
timing->right_margin);
|
||||
exynos_mipi_dsi_set_main_disp_sync_area(dsim,
|
||||
timing->vsync_len,
|
||||
timing->hsync_len);
|
||||
}
|
||||
}
|
||||
|
||||
exynos_mipi_dsi_set_main_disp_resol(dsim, timing->xres,
|
||||
timing->yres);
|
||||
|
||||
exynos_mipi_dsi_display_config(dsim, dsim_config);
|
||||
|
||||
dev_info(dsim->dev, "lcd panel ==> width = %d, height = %d\n",
|
||||
timing->xres, timing->yres);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_init_link(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int time_out = 100;
|
||||
|
||||
switch (dsim->state) {
|
||||
case DSIM_STATE_INIT:
|
||||
exynos_mipi_dsi_init_fifo_pointer(dsim, 0x1f);
|
||||
|
||||
/* dsi configuration */
|
||||
exynos_mipi_dsi_init_config(dsim);
|
||||
exynos_mipi_dsi_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
|
||||
exynos_mipi_dsi_enable_lane(dsim, dsim->data_lane, 1);
|
||||
|
||||
/* set clock configuration */
|
||||
exynos_mipi_dsi_set_clock(dsim, dsim->dsim_config->e_byte_clk, 1);
|
||||
|
||||
/* check clock and data lane state are stop state */
|
||||
while (!(exynos_mipi_dsi_is_lane_state(dsim))) {
|
||||
time_out--;
|
||||
if (time_out == 0) {
|
||||
dev_err(dsim->dev,
|
||||
"DSI Master is not stop state.\n");
|
||||
dev_err(dsim->dev,
|
||||
"Check initialization process\n");
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
if (time_out != 0) {
|
||||
dev_info(dsim->dev,
|
||||
"DSI Master driver has been completed.\n");
|
||||
dev_info(dsim->dev, "DSI Master state is stop state\n");
|
||||
}
|
||||
|
||||
dsim->state = DSIM_STATE_STOP;
|
||||
|
||||
/* BTA sequence counters */
|
||||
exynos_mipi_dsi_set_stop_state_counter(dsim,
|
||||
dsim->dsim_config->stop_holding_cnt);
|
||||
exynos_mipi_dsi_set_bta_timeout(dsim,
|
||||
dsim->dsim_config->bta_timeout);
|
||||
exynos_mipi_dsi_set_lpdr_timeout(dsim,
|
||||
dsim->dsim_config->rx_timeout);
|
||||
|
||||
return 0;
|
||||
default:
|
||||
dev_info(dsim->dev, "DSI Master is already init.\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_set_hs_enable(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
if (dsim->state != DSIM_STATE_STOP) {
|
||||
dev_warn(dsim->dev, "DSIM is not in stop state.\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (dsim->e_clk_src == DSIM_EXT_CLK_BYPASS) {
|
||||
dev_warn(dsim->dev, "clock source is external bypass.\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
dsim->state = DSIM_STATE_HSCLKEN;
|
||||
|
||||
/* set LCDC and CPU transfer mode to HS. */
|
||||
exynos_mipi_dsi_set_lcdc_transfer_mode(dsim, 0);
|
||||
exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 0);
|
||||
exynos_mipi_dsi_enable_hs_clock(dsim, 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_set_data_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int mode)
|
||||
{
|
||||
if (mode) {
|
||||
if (dsim->state != DSIM_STATE_HSCLKEN) {
|
||||
dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
exynos_mipi_dsi_set_lcdc_transfer_mode(dsim, 0);
|
||||
} else {
|
||||
if (dsim->state == DSIM_STATE_INIT || dsim->state ==
|
||||
DSIM_STATE_ULPS) {
|
||||
dev_err(dsim->dev,
|
||||
"DSI Master is not STOP or HSDT state.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 0);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
return _exynos_mipi_dsi_get_frame_done_status(dsim);
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
_exynos_mipi_dsi_clear_frame_done(dsim);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_fifo_clear(struct mipi_dsim_device *dsim,
|
||||
unsigned int val)
|
||||
{
|
||||
int try = TRY_FIFO_CLEAR;
|
||||
|
||||
exynos_mipi_dsi_sw_reset_release(dsim);
|
||||
exynos_mipi_dsi_func_reset(dsim);
|
||||
|
||||
do {
|
||||
if (exynos_mipi_dsi_get_sw_reset_release(dsim)) {
|
||||
exynos_mipi_dsi_init_interrupt(dsim);
|
||||
dev_dbg(dsim->dev, "reset release done.\n");
|
||||
return 0;
|
||||
}
|
||||
} while (--try);
|
||||
|
||||
dev_err(dsim->dev, "failed to clear dsim fifo.\n");
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
|
||||
MODULE_DESCRIPTION("Samusung SoC MIPI-DSI common driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
46
drivers/video/exynos/exynos_mipi_dsi_common.h
Normal file
46
drivers/video/exynos/exynos_mipi_dsi_common.h
Normal file
@ -0,0 +1,46 @@
|
||||
/* linux/drivers/video/exynos_mipi_dsi_common.h
|
||||
*
|
||||
* Header file for Samsung SoC MIPI-DSI common driver.
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae <inki.dae@samsung.com>
|
||||
* Donghwa Lee <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_MIPI_DSI_COMMON_H
|
||||
#define _EXYNOS_MIPI_DSI_COMMON_H
|
||||
|
||||
static DECLARE_COMPLETION(dsim_rd_comp);
|
||||
static DECLARE_COMPLETION(dsim_wr_comp);
|
||||
|
||||
int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
const unsigned char *data0, unsigned int data_size);
|
||||
int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
unsigned int data0, unsigned int req_size, u8 *rx_buf);
|
||||
irqreturn_t exynos_mipi_dsi_interrupt_handler(int irq, void *dev_id);
|
||||
void exynos_mipi_dsi_init_interrupt(struct mipi_dsim_device *dsim);
|
||||
int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_stand_by(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
int exynos_mipi_dsi_set_display_mode(struct mipi_dsim_device *dsim,
|
||||
struct mipi_dsim_config *dsim_info);
|
||||
int exynos_mipi_dsi_init_link(struct mipi_dsim_device *dsim);
|
||||
int exynos_mipi_dsi_set_hs_enable(struct mipi_dsim_device *dsim);
|
||||
int exynos_mipi_dsi_set_data_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int mode);
|
||||
int exynos_mipi_dsi_enable_frame_done_int(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim);
|
||||
int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim);
|
||||
|
||||
extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
|
||||
|
||||
int exynos_mipi_dsi_fifo_clear(struct mipi_dsim_device *dsim,
|
||||
unsigned int val);
|
||||
|
||||
#endif /* _EXYNOS_MIPI_DSI_COMMON_H */
|
||||
618
drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
Normal file
618
drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
Normal file
@ -0,0 +1,618 @@
|
||||
/* linux/drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
|
||||
*
|
||||
* Samsung SoC MIPI-DSI lowlevel driver.
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae, <inki.dae@samsung.com>
|
||||
* Donghwa Lee, <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <linux/io.h>
|
||||
|
||||
#include <video/exynos_mipi_dsim.h>
|
||||
|
||||
#include <mach/map.h>
|
||||
|
||||
#include "exynos_mipi_dsi_regs.h"
|
||||
|
||||
void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_SWRST);
|
||||
|
||||
reg |= DSIM_FUNCRST;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_SWRST);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_sw_reset(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_SWRST);
|
||||
|
||||
reg |= DSIM_SWRST;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_SWRST);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_sw_reset_release(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
|
||||
reg |= INTSRC_SW_RST_RELEASE;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
}
|
||||
|
||||
int exynos_mipi_dsi_get_sw_reset_release(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
return (readl(dsim->reg_base + EXYNOS_DSIM_INTSRC)) &
|
||||
INTSRC_SW_RST_RELEASE;
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_read_interrupt_mask(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_INTMSK);
|
||||
|
||||
return reg;
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_interrupt_mask(struct mipi_dsim_device *dsim,
|
||||
unsigned int mode, unsigned int mask)
|
||||
{
|
||||
unsigned int reg = 0;
|
||||
|
||||
if (mask)
|
||||
reg |= mode;
|
||||
else
|
||||
reg &= ~mode;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_INTMSK);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_init_fifo_pointer(struct mipi_dsim_device *dsim,
|
||||
unsigned int cfg)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_FIFOCTRL);
|
||||
|
||||
writel(reg & ~(cfg), dsim->reg_base + EXYNOS_DSIM_FIFOCTRL);
|
||||
mdelay(10);
|
||||
reg |= cfg;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_FIFOCTRL);
|
||||
}
|
||||
|
||||
/*
|
||||
* this function set PLL P, M and S value in D-PHY
|
||||
*/
|
||||
void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
|
||||
unsigned int value)
|
||||
{
|
||||
writel(DSIM_AFC_CTL(value), dsim->reg_base + EXYNOS_DSIM_PHYACCHR);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_main_stand_by(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_MDRESOL);
|
||||
|
||||
reg &= ~DSIM_MAIN_STAND_BY;
|
||||
|
||||
if (enable)
|
||||
reg |= DSIM_MAIN_STAND_BY;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MDRESOL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_main_disp_resol(struct mipi_dsim_device *dsim,
|
||||
unsigned int width_resol, unsigned int height_resol)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
/* standby should be set after configuration so set to not ready*/
|
||||
reg = (readl(dsim->reg_base + EXYNOS_DSIM_MDRESOL)) &
|
||||
~(DSIM_MAIN_STAND_BY);
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MDRESOL);
|
||||
|
||||
reg &= ~((0x7ff << 16) | (0x7ff << 0));
|
||||
reg |= DSIM_MAIN_VRESOL(height_resol) | DSIM_MAIN_HRESOL(width_resol);
|
||||
|
||||
reg |= DSIM_MAIN_STAND_BY;
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MDRESOL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_main_disp_vporch(struct mipi_dsim_device *dsim,
|
||||
unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = (readl(dsim->reg_base + EXYNOS_DSIM_MVPORCH)) &
|
||||
~((DSIM_CMD_ALLOW_MASK) | (DSIM_STABLE_VFP_MASK) |
|
||||
(DSIM_MAIN_VBP_MASK));
|
||||
|
||||
reg |= (DSIM_CMD_ALLOW_SHIFT(cmd_allow & 0xf) |
|
||||
DSIM_STABLE_VFP_SHIFT(vfront & 0x7ff) |
|
||||
DSIM_MAIN_VBP_SHIFT(vback & 0x7ff));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MVPORCH);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_main_disp_hporch(struct mipi_dsim_device *dsim,
|
||||
unsigned int front, unsigned int back)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = (readl(dsim->reg_base + EXYNOS_DSIM_MHPORCH)) &
|
||||
~((DSIM_MAIN_HFP_MASK) | (DSIM_MAIN_HBP_MASK));
|
||||
|
||||
reg |= DSIM_MAIN_HFP_SHIFT(front) | DSIM_MAIN_HBP_SHIFT(back);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MHPORCH);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_main_disp_sync_area(struct mipi_dsim_device *dsim,
|
||||
unsigned int vert, unsigned int hori)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = (readl(dsim->reg_base + EXYNOS_DSIM_MSYNC)) &
|
||||
~((DSIM_MAIN_VSA_MASK) | (DSIM_MAIN_HSA_MASK));
|
||||
|
||||
reg |= (DSIM_MAIN_VSA_SHIFT(vert & 0x3ff) |
|
||||
DSIM_MAIN_HSA_SHIFT(hori));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_MSYNC);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_sub_disp_resol(struct mipi_dsim_device *dsim,
|
||||
unsigned int vert, unsigned int hori)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = (readl(dsim->reg_base + EXYNOS_DSIM_SDRESOL)) &
|
||||
~(DSIM_SUB_STANDY_MASK);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_SDRESOL);
|
||||
|
||||
reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
|
||||
reg |= (DSIM_SUB_VRESOL_SHIFT(vert & 0x7ff) |
|
||||
DSIM_SUB_HRESOL_SHIFT(hori & 0x7ff));
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_SDRESOL);
|
||||
|
||||
reg |= DSIM_SUB_STANDY_SHIFT(1);
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_SDRESOL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_init_config(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
struct mipi_dsim_config *dsim_config = dsim->dsim_config;
|
||||
|
||||
unsigned int cfg = (readl(dsim->reg_base + EXYNOS_DSIM_CONFIG)) &
|
||||
~((1 << 28) | (0x1f << 20) | (0x3 << 5));
|
||||
|
||||
cfg = ((DSIM_AUTO_FLUSH(dsim_config->auto_flush)) |
|
||||
(DSIM_EOT_DISABLE(dsim_config->eot_disable)) |
|
||||
(DSIM_AUTO_MODE_SHIFT(dsim_config->auto_vertical_cnt)) |
|
||||
(DSIM_HSE_MODE_SHIFT(dsim_config->hse)) |
|
||||
(DSIM_HFP_MODE_SHIFT(dsim_config->hfp)) |
|
||||
(DSIM_HBP_MODE_SHIFT(dsim_config->hbp)) |
|
||||
(DSIM_HSA_MODE_SHIFT(dsim_config->hsa)) |
|
||||
(DSIM_NUM_OF_DATALANE_SHIFT(dsim_config->e_no_data_lane)));
|
||||
|
||||
writel(cfg, dsim->reg_base + EXYNOS_DSIM_CONFIG);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_display_config(struct mipi_dsim_device *dsim,
|
||||
struct mipi_dsim_config *dsim_config)
|
||||
{
|
||||
u32 reg = (readl(dsim->reg_base + EXYNOS_DSIM_CONFIG)) &
|
||||
~((0x3 << 26) | (1 << 25) | (0x3 << 18) | (0x7 << 12) |
|
||||
(0x3 << 16) | (0x7 << 8));
|
||||
|
||||
if (dsim_config->e_interface == DSIM_VIDEO)
|
||||
reg |= (1 << 25);
|
||||
else if (dsim_config->e_interface == DSIM_COMMAND)
|
||||
reg &= ~(1 << 25);
|
||||
else {
|
||||
dev_err(dsim->dev, "unknown lcd type.\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* main lcd */
|
||||
reg |= ((u8) (dsim_config->e_burst_mode) & 0x3) << 26 |
|
||||
((u8) (dsim_config->e_virtual_ch) & 0x3) << 18 |
|
||||
((u8) (dsim_config->e_pixel_format) & 0x7) << 12;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CONFIG);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_lane(struct mipi_dsim_device *dsim, unsigned int lane,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_CONFIG);
|
||||
|
||||
if (enable)
|
||||
reg |= DSIM_LANE_ENx(lane);
|
||||
else
|
||||
reg &= ~DSIM_LANE_ENx(lane);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CONFIG);
|
||||
}
|
||||
|
||||
|
||||
void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
|
||||
unsigned int count)
|
||||
{
|
||||
unsigned int cfg;
|
||||
|
||||
/* get the data lane number. */
|
||||
cfg = DSIM_NUM_OF_DATALANE_SHIFT(count);
|
||||
|
||||
writel(cfg, dsim->reg_base + EXYNOS_DSIM_CONFIG);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_afc(struct mipi_dsim_device *dsim, unsigned int enable,
|
||||
unsigned int afc_code)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_PHYACCHR);
|
||||
|
||||
if (enable) {
|
||||
reg |= (1 << 14);
|
||||
reg &= ~(0x7 << 5);
|
||||
reg |= (afc_code & 0x7) << 5;
|
||||
} else
|
||||
reg &= ~(1 << 14);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PHYACCHR);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_pll_bypass(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL)) &
|
||||
~(DSIM_PLL_BYPASS_SHIFT(0x1));
|
||||
|
||||
reg |= DSIM_PLL_BYPASS_SHIFT(enable);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_pll_pms(struct mipi_dsim_device *dsim, unsigned int p,
|
||||
unsigned int m, unsigned int s)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
|
||||
reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_pll_freq_band(struct mipi_dsim_device *dsim,
|
||||
unsigned int freq_band)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL)) &
|
||||
~(DSIM_FREQ_BAND_SHIFT(0x1f));
|
||||
|
||||
reg |= DSIM_FREQ_BAND_SHIFT(freq_band & 0x1f);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_pll_freq(struct mipi_dsim_device *dsim,
|
||||
unsigned int pre_divider, unsigned int main_divider,
|
||||
unsigned int scaler)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL)) &
|
||||
~(0x7ffff << 1);
|
||||
|
||||
reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
|
||||
(scaler & 0x7) << 1;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_pll_stable_time(struct mipi_dsim_device *dsim,
|
||||
unsigned int lock_time)
|
||||
{
|
||||
writel(lock_time, dsim->reg_base + EXYNOS_DSIM_PLLTMR);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_pll(struct mipi_dsim_device *dsim, unsigned int enable)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL)) &
|
||||
~(DSIM_PLL_EN_SHIFT(0x1));
|
||||
|
||||
reg |= DSIM_PLL_EN_SHIFT(enable & 0x1);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_byte_clock_src(struct mipi_dsim_device *dsim,
|
||||
unsigned int src)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL)) &
|
||||
~(DSIM_BYTE_CLK_SRC_SHIFT(0x3));
|
||||
|
||||
reg |= (DSIM_BYTE_CLK_SRC_SHIFT(src));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_byte_clock(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL)) &
|
||||
~(DSIM_BYTE_CLKEN_SHIFT(0x1));
|
||||
|
||||
reg |= DSIM_BYTE_CLKEN_SHIFT(enable);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_esc_clk_prs(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable, unsigned int prs_val)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL)) &
|
||||
~(DSIM_ESC_CLKEN_SHIFT(0x1) | 0xffff);
|
||||
|
||||
reg |= DSIM_ESC_CLKEN_SHIFT(enable);
|
||||
if (enable)
|
||||
reg |= prs_val;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_esc_clk_on_lane(struct mipi_dsim_device *dsim,
|
||||
unsigned int lane_sel, unsigned int enable)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
|
||||
if (enable)
|
||||
reg |= DSIM_LANE_ESC_CLKEN(lane_sel);
|
||||
else
|
||||
|
||||
reg &= ~DSIM_LANE_ESC_CLKEN(lane_sel);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_force_dphy_stop_state(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_ESCMODE)) &
|
||||
~(DSIM_FORCE_STOP_STATE_SHIFT(0x1));
|
||||
|
||||
reg |= (DSIM_FORCE_STOP_STATE_SHIFT(enable & 0x1));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_is_lane_state(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_STATUS);
|
||||
|
||||
/**
|
||||
* check clock and data lane states.
|
||||
* if MIPI-DSI controller was enabled at bootloader then
|
||||
* TX_READY_HS_CLK is enabled otherwise STOP_STATE_CLK.
|
||||
* so it should be checked for two case.
|
||||
*/
|
||||
if ((reg & DSIM_STOP_STATE_DAT(0xf)) &&
|
||||
((reg & DSIM_STOP_STATE_CLK) ||
|
||||
(reg & DSIM_TX_READY_HS_CLK)))
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_stop_state_counter(struct mipi_dsim_device *dsim,
|
||||
unsigned int cnt_val)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_ESCMODE)) &
|
||||
~(DSIM_STOP_STATE_CNT_SHIFT(0x7ff));
|
||||
|
||||
reg |= (DSIM_STOP_STATE_CNT_SHIFT(cnt_val & 0x7ff));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_bta_timeout(struct mipi_dsim_device *dsim,
|
||||
unsigned int timeout)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_TIMEOUT)) &
|
||||
~(DSIM_BTA_TOUT_SHIFT(0xff));
|
||||
|
||||
reg |= (DSIM_BTA_TOUT_SHIFT(timeout));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_TIMEOUT);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_lpdr_timeout(struct mipi_dsim_device *dsim,
|
||||
unsigned int timeout)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_TIMEOUT)) &
|
||||
~(DSIM_LPDR_TOUT_SHIFT(0xffff));
|
||||
|
||||
reg |= (DSIM_LPDR_TOUT_SHIFT(timeout));
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_TIMEOUT);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_cpu_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int lp)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
|
||||
reg &= ~DSIM_CMD_LPDT_LP;
|
||||
|
||||
if (lp)
|
||||
reg |= DSIM_CMD_LPDT_LP;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_lcdc_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int lp)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
|
||||
reg &= ~DSIM_TX_LPDT_LP;
|
||||
|
||||
if (lp)
|
||||
reg |= DSIM_TX_LPDT_LP;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_ESCMODE);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_enable_hs_clock(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_CLKCTRL)) &
|
||||
~(DSIM_TX_REQUEST_HSCLK_SHIFT(0x1));
|
||||
|
||||
reg |= DSIM_TX_REQUEST_HSCLK_SHIFT(enable);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_CLKCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_dp_dn_swap(struct mipi_dsim_device *dsim,
|
||||
unsigned int swap_en)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_PHYACCHR1);
|
||||
|
||||
reg &= ~(0x3 << 0);
|
||||
reg |= (swap_en & 0x3) << 0;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PHYACCHR1);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_hs_zero_ctrl(struct mipi_dsim_device *dsim,
|
||||
unsigned int hs_zero)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL)) &
|
||||
~(0xf << 28);
|
||||
|
||||
reg |= ((hs_zero & 0xf) << 28);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_prep_ctrl(struct mipi_dsim_device *dsim, unsigned int prep)
|
||||
{
|
||||
unsigned int reg = (readl(dsim->reg_base + EXYNOS_DSIM_PLLCTRL)) &
|
||||
~(0x7 << 20);
|
||||
|
||||
reg |= ((prep & 0x7) << 20);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PLLCTRL);
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_read_interrupt(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
return readl(dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_clear_interrupt(struct mipi_dsim_device *dsim,
|
||||
unsigned int src)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
|
||||
reg |= src;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_set_interrupt(struct mipi_dsim_device *dsim,
|
||||
unsigned int src, unsigned int enable)
|
||||
{
|
||||
unsigned int reg = 0;
|
||||
|
||||
if (enable)
|
||||
reg |= src;
|
||||
else
|
||||
reg &= ~src;
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_is_pll_stable(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg;
|
||||
|
||||
reg = readl(dsim->reg_base + EXYNOS_DSIM_STATUS);
|
||||
|
||||
return reg & (1 << 31) ? 1 : 0;
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_get_fifo_state(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
return readl(dsim->reg_base + EXYNOS_DSIM_FIFOCTRL) & ~(0x1f);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_wr_tx_header(struct mipi_dsim_device *dsim,
|
||||
unsigned int di, unsigned int data0, unsigned int data1)
|
||||
{
|
||||
unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PKTHDR);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_rd_tx_header(struct mipi_dsim_device *dsim,
|
||||
unsigned int di, unsigned int data0)
|
||||
{
|
||||
unsigned int reg = (data0 << 8) | (di << 0);
|
||||
|
||||
writel(reg, dsim->reg_base + EXYNOS_DSIM_PKTHDR);
|
||||
}
|
||||
|
||||
unsigned int exynos_mipi_dsi_rd_rx_fifo(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
return readl(dsim->reg_base + EXYNOS_DSIM_RXFIFO);
|
||||
}
|
||||
|
||||
unsigned int _exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
|
||||
return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
|
||||
}
|
||||
|
||||
void _exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
|
||||
{
|
||||
unsigned int reg = readl(dsim->reg_base + EXYNOS_DSIM_INTSRC);
|
||||
|
||||
writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
|
||||
EXYNOS_DSIM_INTSRC);
|
||||
}
|
||||
|
||||
void exynos_mipi_dsi_wr_tx_data(struct mipi_dsim_device *dsim,
|
||||
unsigned int tx_data)
|
||||
{
|
||||
writel(tx_data, dsim->reg_base + EXYNOS_DSIM_PAYLOAD);
|
||||
}
|
||||
112
drivers/video/exynos/exynos_mipi_dsi_lowlevel.h
Normal file
112
drivers/video/exynos/exynos_mipi_dsi_lowlevel.h
Normal file
@ -0,0 +1,112 @@
|
||||
/* linux/drivers/video/exynos/exynos_mipi_dsi_lowlevel.h
|
||||
*
|
||||
* Header file for Samsung SoC MIPI-DSI lowlevel driver.
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae <inki.dae@samsung.com>
|
||||
* Donghwa Lee <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_MIPI_DSI_LOWLEVEL_H
|
||||
#define _EXYNOS_MIPI_DSI_LOWLEVEL_H
|
||||
|
||||
void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_sw_reset(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_sw_reset_release(struct mipi_dsim_device *dsim);
|
||||
int exynos_mipi_dsi_get_sw_reset_release(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_set_interrupt_mask(struct mipi_dsim_device *dsim,
|
||||
unsigned int mode, unsigned int mask);
|
||||
void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
|
||||
unsigned int count);
|
||||
void exynos_mipi_dsi_init_fifo_pointer(struct mipi_dsim_device *dsim,
|
||||
unsigned int cfg);
|
||||
void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
|
||||
unsigned int value);
|
||||
void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
|
||||
unsigned int value);
|
||||
void exynos_mipi_dsi_set_main_stand_by(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_set_main_disp_resol(struct mipi_dsim_device *dsim,
|
||||
unsigned int width_resol, unsigned int height_resol);
|
||||
void exynos_mipi_dsi_set_main_disp_vporch(struct mipi_dsim_device *dsim,
|
||||
unsigned int cmd_allow, unsigned int vfront, unsigned int vback);
|
||||
void exynos_mipi_dsi_set_main_disp_hporch(struct mipi_dsim_device *dsim,
|
||||
unsigned int front, unsigned int back);
|
||||
void exynos_mipi_dsi_set_main_disp_sync_area(struct mipi_dsim_device *dsim,
|
||||
unsigned int vert, unsigned int hori);
|
||||
void exynos_mipi_dsi_set_sub_disp_resol(struct mipi_dsim_device *dsim,
|
||||
unsigned int vert, unsigned int hori);
|
||||
void exynos_mipi_dsi_init_config(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_display_config(struct mipi_dsim_device *dsim,
|
||||
struct mipi_dsim_config *dsim_config);
|
||||
void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
|
||||
unsigned int count);
|
||||
void exynos_mipi_dsi_enable_lane(struct mipi_dsim_device *dsim, unsigned int lane,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_enable_afc(struct mipi_dsim_device *dsim, unsigned int enable,
|
||||
unsigned int afc_code);
|
||||
void exynos_mipi_dsi_enable_pll_bypass(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_set_pll_pms(struct mipi_dsim_device *dsim, unsigned int p,
|
||||
unsigned int m, unsigned int s);
|
||||
void exynos_mipi_dsi_pll_freq_band(struct mipi_dsim_device *dsim,
|
||||
unsigned int freq_band);
|
||||
void exynos_mipi_dsi_pll_freq(struct mipi_dsim_device *dsim,
|
||||
unsigned int pre_divider, unsigned int main_divider,
|
||||
unsigned int scaler);
|
||||
void exynos_mipi_dsi_pll_stable_time(struct mipi_dsim_device *dsim,
|
||||
unsigned int lock_time);
|
||||
void exynos_mipi_dsi_enable_pll(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_set_byte_clock_src(struct mipi_dsim_device *dsim,
|
||||
unsigned int src);
|
||||
void exynos_mipi_dsi_enable_byte_clock(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_set_esc_clk_prs(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable, unsigned int prs_val);
|
||||
void exynos_mipi_dsi_enable_esc_clk_on_lane(struct mipi_dsim_device *dsim,
|
||||
unsigned int lane_sel, unsigned int enable);
|
||||
void exynos_mipi_dsi_force_dphy_stop_state(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
unsigned int exynos_mipi_dsi_is_lane_state(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_set_stop_state_counter(struct mipi_dsim_device *dsim,
|
||||
unsigned int cnt_val);
|
||||
void exynos_mipi_dsi_set_bta_timeout(struct mipi_dsim_device *dsim,
|
||||
unsigned int timeout);
|
||||
void exynos_mipi_dsi_set_lpdr_timeout(struct mipi_dsim_device *dsim,
|
||||
unsigned int timeout);
|
||||
void exynos_mipi_dsi_set_lcdc_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int lp);
|
||||
void exynos_mipi_dsi_set_cpu_transfer_mode(struct mipi_dsim_device *dsim,
|
||||
unsigned int lp);
|
||||
void exynos_mipi_dsi_enable_hs_clock(struct mipi_dsim_device *dsim,
|
||||
unsigned int enable);
|
||||
void exynos_mipi_dsi_dp_dn_swap(struct mipi_dsim_device *dsim,
|
||||
unsigned int swap_en);
|
||||
void exynos_mipi_dsi_hs_zero_ctrl(struct mipi_dsim_device *dsim,
|
||||
unsigned int hs_zero);
|
||||
void exynos_mipi_dsi_prep_ctrl(struct mipi_dsim_device *dsim, unsigned int prep);
|
||||
unsigned int exynos_mipi_dsi_read_interrupt(struct mipi_dsim_device *dsim);
|
||||
unsigned int exynos_mipi_dsi_read_interrupt_mask(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_clear_interrupt(struct mipi_dsim_device *dsim,
|
||||
unsigned int src);
|
||||
void exynos_mipi_dsi_set_interrupt(struct mipi_dsim_device *dsim,
|
||||
unsigned int src, unsigned int enable);
|
||||
unsigned int exynos_mipi_dsi_is_pll_stable(struct mipi_dsim_device *dsim);
|
||||
unsigned int exynos_mipi_dsi_get_fifo_state(struct mipi_dsim_device *dsim);
|
||||
unsigned int _exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim);
|
||||
void _exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim);
|
||||
void exynos_mipi_dsi_wr_tx_header(struct mipi_dsim_device *dsim, unsigned int di,
|
||||
unsigned int data0, unsigned int data1);
|
||||
void exynos_mipi_dsi_wr_tx_data(struct mipi_dsim_device *dsim,
|
||||
unsigned int tx_data);
|
||||
void exynos_mipi_dsi_rd_tx_header(struct mipi_dsim_device *dsim,
|
||||
unsigned int data0, unsigned int data1);
|
||||
unsigned int exynos_mipi_dsi_rd_rx_fifo(struct mipi_dsim_device *dsim);
|
||||
|
||||
#endif /* _EXYNOS_MIPI_DSI_LOWLEVEL_H */
|
||||
149
drivers/video/exynos/exynos_mipi_dsi_regs.h
Normal file
149
drivers/video/exynos/exynos_mipi_dsi_regs.h
Normal file
@ -0,0 +1,149 @@
|
||||
/* linux/driver/video/exynos/exynos_mipi_dsi_regs.h
|
||||
*
|
||||
* Register definition file for Samsung MIPI-DSIM driver
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae <inki.dae@samsung.com>
|
||||
* Donghwa Lee <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_MIPI_DSI_REGS_H
|
||||
#define _EXYNOS_MIPI_DSI_REGS_H
|
||||
|
||||
#define EXYNOS_DSIM_STATUS 0x0 /* Status register */
|
||||
#define EXYNOS_DSIM_SWRST 0x4 /* Software reset register */
|
||||
#define EXYNOS_DSIM_CLKCTRL 0x8 /* Clock control register */
|
||||
#define EXYNOS_DSIM_TIMEOUT 0xc /* Time out register */
|
||||
#define EXYNOS_DSIM_CONFIG 0x10 /* Configuration register */
|
||||
#define EXYNOS_DSIM_ESCMODE 0x14 /* Escape mode register */
|
||||
|
||||
/* Main display image resolution register */
|
||||
#define EXYNOS_DSIM_MDRESOL 0x18
|
||||
#define EXYNOS_DSIM_MVPORCH 0x1c /* Main display Vporch register */
|
||||
#define EXYNOS_DSIM_MHPORCH 0x20 /* Main display Hporch register */
|
||||
#define EXYNOS_DSIM_MSYNC 0x24 /* Main display sync area register */
|
||||
|
||||
/* Sub display image resolution register */
|
||||
#define EXYNOS_DSIM_SDRESOL 0x28
|
||||
#define EXYNOS_DSIM_INTSRC 0x2c /* Interrupt source register */
|
||||
#define EXYNOS_DSIM_INTMSK 0x30 /* Interrupt mask register */
|
||||
#define EXYNOS_DSIM_PKTHDR 0x34 /* Packet Header FIFO register */
|
||||
#define EXYNOS_DSIM_PAYLOAD 0x38 /* Payload FIFO register */
|
||||
#define EXYNOS_DSIM_RXFIFO 0x3c /* Read FIFO register */
|
||||
#define EXYNOS_DSIM_FIFOTHLD 0x40 /* FIFO threshold level register */
|
||||
#define EXYNOS_DSIM_FIFOCTRL 0x44 /* FIFO status and control register */
|
||||
|
||||
/* FIFO memory AC characteristic register */
|
||||
#define EXYNOS_DSIM_PLLCTRL 0x4c /* PLL control register */
|
||||
#define EXYNOS_DSIM_PLLTMR 0x50 /* PLL timer register */
|
||||
#define EXYNOS_DSIM_PHYACCHR 0x54 /* D-PHY AC characteristic register */
|
||||
#define EXYNOS_DSIM_PHYACCHR1 0x58 /* D-PHY AC characteristic register1 */
|
||||
|
||||
/* DSIM_STATUS */
|
||||
#define DSIM_STOP_STATE_DAT(x) (((x) & 0xf) << 0)
|
||||
#define DSIM_STOP_STATE_CLK (1 << 8)
|
||||
#define DSIM_TX_READY_HS_CLK (1 << 10)
|
||||
|
||||
/* DSIM_SWRST */
|
||||
#define DSIM_FUNCRST (1 << 16)
|
||||
#define DSIM_SWRST (1 << 0)
|
||||
|
||||
/* EXYNOS_DSIM_TIMEOUT */
|
||||
#define DSIM_LPDR_TOUT_SHIFT(x) ((x) << 0)
|
||||
#define DSIM_BTA_TOUT_SHIFT(x) ((x) << 16)
|
||||
|
||||
/* EXYNOS_DSIM_CLKCTRL */
|
||||
#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << 19)
|
||||
#define DSIM_BYTE_CLKEN_SHIFT(x) ((x) << 24)
|
||||
#define DSIM_BYTE_CLK_SRC_SHIFT(x) ((x) << 25)
|
||||
#define DSIM_PLL_BYPASS_SHIFT(x) ((x) << 27)
|
||||
#define DSIM_ESC_CLKEN_SHIFT(x) ((x) << 28)
|
||||
#define DSIM_TX_REQUEST_HSCLK_SHIFT(x) ((x) << 31)
|
||||
|
||||
/* EXYNOS_DSIM_CONFIG */
|
||||
#define DSIM_LANE_ENx(x) (((x) & 0x1f) << 0)
|
||||
#define DSIM_NUM_OF_DATALANE_SHIFT(x) ((x) << 5)
|
||||
#define DSIM_HSA_MODE_SHIFT(x) ((x) << 20)
|
||||
#define DSIM_HBP_MODE_SHIFT(x) ((x) << 21)
|
||||
#define DSIM_HFP_MODE_SHIFT(x) ((x) << 22)
|
||||
#define DSIM_HSE_MODE_SHIFT(x) ((x) << 23)
|
||||
#define DSIM_AUTO_MODE_SHIFT(x) ((x) << 24)
|
||||
#define DSIM_EOT_DISABLE(x) ((x) << 28)
|
||||
#define DSIM_AUTO_FLUSH(x) ((x) << 29)
|
||||
|
||||
#define DSIM_NUM_OF_DATA_LANE(x) ((x) << DSIM_NUM_OF_DATALANE_SHIFT)
|
||||
|
||||
/* EXYNOS_DSIM_ESCMODE */
|
||||
#define DSIM_TX_LPDT_LP (1 << 6)
|
||||
#define DSIM_CMD_LPDT_LP (1 << 7)
|
||||
#define DSIM_FORCE_STOP_STATE_SHIFT(x) ((x) << 20)
|
||||
#define DSIM_STOP_STATE_CNT_SHIFT(x) ((x) << 21)
|
||||
|
||||
/* EXYNOS_DSIM_MDRESOL */
|
||||
#define DSIM_MAIN_STAND_BY (1 << 31)
|
||||
#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
|
||||
#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
|
||||
|
||||
/* EXYNOS_DSIM_MVPORCH */
|
||||
#define DSIM_CMD_ALLOW_SHIFT(x) ((x) << 28)
|
||||
#define DSIM_STABLE_VFP_SHIFT(x) ((x) << 16)
|
||||
#define DSIM_MAIN_VBP_SHIFT(x) ((x) << 0)
|
||||
#define DSIM_CMD_ALLOW_MASK (0xf << 28)
|
||||
#define DSIM_STABLE_VFP_MASK (0x7ff << 16)
|
||||
#define DSIM_MAIN_VBP_MASK (0x7ff << 0)
|
||||
|
||||
/* EXYNOS_DSIM_MHPORCH */
|
||||
#define DSIM_MAIN_HFP_SHIFT(x) ((x) << 16)
|
||||
#define DSIM_MAIN_HBP_SHIFT(x) ((x) << 0)
|
||||
#define DSIM_MAIN_HFP_MASK ((0xffff) << 16)
|
||||
#define DSIM_MAIN_HBP_MASK ((0xffff) << 0)
|
||||
|
||||
/* EXYNOS_DSIM_MSYNC */
|
||||
#define DSIM_MAIN_VSA_SHIFT(x) ((x) << 22)
|
||||
#define DSIM_MAIN_HSA_SHIFT(x) ((x) << 0)
|
||||
#define DSIM_MAIN_VSA_MASK ((0x3ff) << 22)
|
||||
#define DSIM_MAIN_HSA_MASK ((0xffff) << 0)
|
||||
|
||||
/* EXYNOS_DSIM_SDRESOL */
|
||||
#define DSIM_SUB_STANDY_SHIFT(x) ((x) << 31)
|
||||
#define DSIM_SUB_VRESOL_SHIFT(x) ((x) << 16)
|
||||
#define DSIM_SUB_HRESOL_SHIFT(x) ((x) << 0)
|
||||
#define DSIM_SUB_STANDY_MASK ((0x1) << 31)
|
||||
#define DSIM_SUB_VRESOL_MASK ((0x7ff) << 16)
|
||||
#define DSIM_SUB_HRESOL_MASK ((0x7ff) << 0)
|
||||
|
||||
/* EXYNOS_DSIM_INTSRC */
|
||||
#define INTSRC_PLL_STABLE (1 << 31)
|
||||
#define INTSRC_SW_RST_RELEASE (1 << 30)
|
||||
#define INTSRC_SFR_FIFO_EMPTY (1 << 29)
|
||||
#define INTSRC_FRAME_DONE (1 << 24)
|
||||
#define INTSRC_RX_DATA_DONE (1 << 18)
|
||||
|
||||
/* EXYNOS_DSIM_INTMSK */
|
||||
#define INTMSK_FIFO_EMPTY (1 << 29)
|
||||
#define INTMSK_BTA (1 << 25)
|
||||
#define INTMSK_FRAME_DONE (1 << 24)
|
||||
#define INTMSK_RX_TIMEOUT (1 << 21)
|
||||
#define INTMSK_BTA_TIMEOUT (1 << 20)
|
||||
#define INTMSK_RX_DONE (1 << 18)
|
||||
#define INTMSK_RX_TE (1 << 17)
|
||||
#define INTMSK_RX_ACK (1 << 16)
|
||||
#define INTMSK_RX_ECC_ERR (1 << 15)
|
||||
#define INTMSK_RX_CRC_ERR (1 << 14)
|
||||
|
||||
/* EXYNOS_DSIM_FIFOCTRL */
|
||||
#define SFR_HEADER_EMPTY (1 << 22)
|
||||
|
||||
/* EXYNOS_DSIM_PHYACCHR */
|
||||
#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
|
||||
|
||||
/* EXYNOS_DSIM_PLLCTRL */
|
||||
#define DSIM_PLL_EN_SHIFT(x) ((x) << 23)
|
||||
#define DSIM_FREQ_BAND_SHIFT(x) ((x) << 24)
|
||||
|
||||
#endif /* _EXYNOS_MIPI_DSI_REGS_H */
|
||||
359
include/video/exynos_mipi_dsim.h
Normal file
359
include/video/exynos_mipi_dsim.h
Normal file
@ -0,0 +1,359 @@
|
||||
/* include/video/exynos_mipi_dsim.h
|
||||
*
|
||||
* Platform data header for Samsung SoC MIPI-DSIM.
|
||||
*
|
||||
* Copyright (c) 2012 Samsung Electronics Co., Ltd
|
||||
*
|
||||
* InKi Dae <inki.dae@samsung.com>
|
||||
* Donghwa Lee <dh09.lee@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_MIPI_DSIM_H
|
||||
#define _EXYNOS_MIPI_DSIM_H
|
||||
|
||||
#include <linux/device.h>
|
||||
#include <linux/fb.h>
|
||||
|
||||
#define PANEL_NAME_SIZE (32)
|
||||
|
||||
/*
|
||||
* Enumerate display interface type.
|
||||
*
|
||||
* DSIM_COMMAND means cpu interface and rgb interface for DSIM_VIDEO.
|
||||
*
|
||||
* P.S. MIPI DSI Master has two display controller intefaces, RGB Interface
|
||||
* for main display and CPU Interface(same as I80 Interface) for main
|
||||
* and sub display.
|
||||
*/
|
||||
enum mipi_dsim_interface_type {
|
||||
DSIM_COMMAND,
|
||||
DSIM_VIDEO
|
||||
};
|
||||
|
||||
enum mipi_dsim_virtual_ch_no {
|
||||
DSIM_VIRTUAL_CH_0,
|
||||
DSIM_VIRTUAL_CH_1,
|
||||
DSIM_VIRTUAL_CH_2,
|
||||
DSIM_VIRTUAL_CH_3
|
||||
};
|
||||
|
||||
enum mipi_dsim_burst_mode_type {
|
||||
DSIM_NON_BURST_SYNC_EVENT,
|
||||
DSIM_BURST_SYNC_EVENT,
|
||||
DSIM_NON_BURST_SYNC_PULSE,
|
||||
DSIM_BURST,
|
||||
DSIM_NON_VIDEO_MODE
|
||||
};
|
||||
|
||||
enum mipi_dsim_no_of_data_lane {
|
||||
DSIM_DATA_LANE_1,
|
||||
DSIM_DATA_LANE_2,
|
||||
DSIM_DATA_LANE_3,
|
||||
DSIM_DATA_LANE_4
|
||||
};
|
||||
|
||||
enum mipi_dsim_byte_clk_src {
|
||||
DSIM_PLL_OUT_DIV8,
|
||||
DSIM_EXT_CLK_DIV8,
|
||||
DSIM_EXT_CLK_BYPASS
|
||||
};
|
||||
|
||||
enum mipi_dsim_pixel_format {
|
||||
DSIM_CMD_3BPP,
|
||||
DSIM_CMD_8BPP,
|
||||
DSIM_CMD_12BPP,
|
||||
DSIM_CMD_16BPP,
|
||||
DSIM_VID_16BPP_565,
|
||||
DSIM_VID_18BPP_666PACKED,
|
||||
DSIM_18BPP_666LOOSELYPACKED,
|
||||
DSIM_24BPP_888
|
||||
};
|
||||
|
||||
/*
|
||||
* struct mipi_dsim_config - interface for configuring mipi-dsi controller.
|
||||
*
|
||||
* @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
|
||||
* @eot_disable: enable or disable EoT packet in HS mode.
|
||||
* @auto_vertical_cnt: specifies auto vertical count mode.
|
||||
* in Video mode, the vertical line transition uses line counter
|
||||
* configured by VSA, VBP, and Vertical resolution.
|
||||
* If this bit is set to '1', the line counter does not use VSA and VBP
|
||||
* registers.(in command mode, this variable is ignored)
|
||||
* @hse: set horizontal sync event mode.
|
||||
* In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
|
||||
* start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
|
||||
* this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
|
||||
* (in mommand mode, this variable is ignored)
|
||||
* @hfp: specifies HFP disable mode.
|
||||
* if this variable is set, DSI master ignores HFP area in VIDEO mode.
|
||||
* (in command mode, this variable is ignored)
|
||||
* @hbp: specifies HBP disable mode.
|
||||
* if this variable is set, DSI master ignores HBP area in VIDEO mode.
|
||||
* (in command mode, this variable is ignored)
|
||||
* @hsa: specifies HSA disable mode.
|
||||
* if this variable is set, DSI master ignores HSA area in VIDEO mode.
|
||||
* (in command mode, this variable is ignored)
|
||||
* @cma_allow: specifies the number of horizontal lines, where command packet
|
||||
* transmission is allowed after Stable VFP period.
|
||||
* @e_interface: specifies interface to be used.(CPU or RGB interface)
|
||||
* @e_virtual_ch: specifies virtual channel number that main or
|
||||
* sub diaplsy uses.
|
||||
* @e_pixel_format: specifies pixel stream format for main or sub display.
|
||||
* @e_burst_mode: selects Burst mode in Video mode.
|
||||
* in Non-burst mode, RGB data area is filled with RGB data and NULL
|
||||
* packets, according to input bandwidth of RGB interface.
|
||||
* In Burst mode, RGB data area is filled with RGB data only.
|
||||
* @e_no_data_lane: specifies data lane count to be used by Master.
|
||||
* @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
|
||||
* DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
|
||||
* @pll_stable_time: specifies the PLL Timer for stability of the ganerated
|
||||
* clock(System clock cycle base)
|
||||
* if the timer value goes to 0x00000000, the clock stable bit of status
|
||||
* and interrupt register is set.
|
||||
* @esc_clk: specifies escape clock frequency for getting the escape clock
|
||||
* prescaler value.
|
||||
* @stop_holding_cnt: specifies the interval value between transmitting
|
||||
* read packet(or write "set_tear_on" command) and BTA request.
|
||||
* after transmitting read packet or write "set_tear_on" command,
|
||||
* BTA requests to D-PHY automatically. this counter value specifies
|
||||
* the interval between them.
|
||||
* @bta_timeout: specifies the timer for BTA.
|
||||
* this register specifies time out from BTA request to change
|
||||
* the direction with respect to Tx escape clock.
|
||||
* @rx_timeout: specifies the timer for LP Rx mode timeout.
|
||||
* this register specifies time out on how long RxValid deasserts,
|
||||
* after RxLpdt asserts with respect to Tx escape clock.
|
||||
* - RxValid specifies Rx data valid indicator.
|
||||
* - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
|
||||
* - RxValid and RxLpdt specifies signal from D-PHY.
|
||||
*/
|
||||
struct mipi_dsim_config {
|
||||
unsigned char auto_flush;
|
||||
unsigned char eot_disable;
|
||||
|
||||
unsigned char auto_vertical_cnt;
|
||||
unsigned char hse;
|
||||
unsigned char hfp;
|
||||
unsigned char hbp;
|
||||
unsigned char hsa;
|
||||
unsigned char cmd_allow;
|
||||
|
||||
enum mipi_dsim_interface_type e_interface;
|
||||
enum mipi_dsim_virtual_ch_no e_virtual_ch;
|
||||
enum mipi_dsim_pixel_format e_pixel_format;
|
||||
enum mipi_dsim_burst_mode_type e_burst_mode;
|
||||
enum mipi_dsim_no_of_data_lane e_no_data_lane;
|
||||
enum mipi_dsim_byte_clk_src e_byte_clk;
|
||||
|
||||
/*
|
||||
* ===========================================
|
||||
* | P | M | S | MHz |
|
||||
* -------------------------------------------
|
||||
* | 3 | 100 | 3 | 100 |
|
||||
* | 3 | 100 | 2 | 200 |
|
||||
* | 3 | 63 | 1 | 252 |
|
||||
* | 4 | 100 | 1 | 300 |
|
||||
* | 4 | 110 | 1 | 330 |
|
||||
* | 12 | 350 | 1 | 350 |
|
||||
* | 3 | 100 | 1 | 400 |
|
||||
* | 4 | 150 | 1 | 450 |
|
||||
* | 6 | 118 | 1 | 472 |
|
||||
* | 3 | 120 | 1 | 480 |
|
||||
* | 12 | 250 | 0 | 500 |
|
||||
* | 4 | 100 | 0 | 600 |
|
||||
* | 3 | 81 | 0 | 648 |
|
||||
* | 3 | 88 | 0 | 704 |
|
||||
* | 3 | 90 | 0 | 720 |
|
||||
* | 3 | 100 | 0 | 800 |
|
||||
* | 12 | 425 | 0 | 850 |
|
||||
* | 4 | 150 | 0 | 900 |
|
||||
* | 12 | 475 | 0 | 950 |
|
||||
* | 6 | 250 | 0 | 1000 |
|
||||
* -------------------------------------------
|
||||
*/
|
||||
|
||||
/*
|
||||
* pms could be calculated as the following.
|
||||
* M * 24 / P * 2 ^ S = MHz
|
||||
*/
|
||||
unsigned char p;
|
||||
unsigned short m;
|
||||
unsigned char s;
|
||||
|
||||
unsigned int pll_stable_time;
|
||||
unsigned long esc_clk;
|
||||
|
||||
unsigned short stop_holding_cnt;
|
||||
unsigned char bta_timeout;
|
||||
unsigned short rx_timeout;
|
||||
};
|
||||
|
||||
/*
|
||||
* struct mipi_dsim_device - global interface for mipi-dsi driver.
|
||||
*
|
||||
* @dev: driver model representation of the device.
|
||||
* @id: unique device id.
|
||||
* @clock: pointer to MIPI-DSI clock of clock framework.
|
||||
* @irq: interrupt number to MIPI-DSI controller.
|
||||
* @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
|
||||
* (virtual address)
|
||||
* @lock: the mutex protecting this data structure.
|
||||
* @dsim_info: infomation for configuring mipi-dsi controller.
|
||||
* @master_ops: callbacks to mipi-dsi operations.
|
||||
* @dsim_lcd_dev: pointer to activated ddi device.
|
||||
* (it would be registered by mipi-dsi driver.)
|
||||
* @dsim_lcd_drv: pointer to activated_ddi driver.
|
||||
* (it would be registered by mipi-dsi driver.)
|
||||
* @lcd_info: pointer to mipi_lcd_info structure.
|
||||
* @state: specifies status of MIPI-DSI controller.
|
||||
* the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
|
||||
* @data_lane: specifiec enabled data lane number.
|
||||
* this variable would be set by driver according to e_no_data_lane
|
||||
* automatically.
|
||||
* @e_clk_src: select byte clock source.
|
||||
* @pd: pointer to MIPI-DSI driver platform data.
|
||||
*/
|
||||
struct mipi_dsim_device {
|
||||
struct device *dev;
|
||||
int id;
|
||||
struct resource *res;
|
||||
struct clk *clock;
|
||||
unsigned int irq;
|
||||
void __iomem *reg_base;
|
||||
struct mutex lock;
|
||||
|
||||
struct mipi_dsim_config *dsim_config;
|
||||
struct mipi_dsim_master_ops *master_ops;
|
||||
struct mipi_dsim_lcd_device *dsim_lcd_dev;
|
||||
struct mipi_dsim_lcd_driver *dsim_lcd_drv;
|
||||
|
||||
unsigned int state;
|
||||
unsigned int data_lane;
|
||||
unsigned int e_clk_src;
|
||||
bool suspended;
|
||||
|
||||
struct mipi_dsim_platform_data *pd;
|
||||
};
|
||||
|
||||
/*
|
||||
* struct mipi_dsim_platform_data - interface to platform data
|
||||
* for mipi-dsi driver.
|
||||
*
|
||||
* @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
|
||||
* lcd panel driver searched would be actived.
|
||||
* @dsim_config: pointer of structure for configuring mipi-dsi controller.
|
||||
* @enabled: indicate whether mipi controller got enabled or not.
|
||||
* @lcd_panel_info: pointer for lcd panel specific structure.
|
||||
* this structure specifies width, height, timing and polarity and so on.
|
||||
* @phy_enable: pointer to a callback controlling D-PHY enable/reset
|
||||
*/
|
||||
struct mipi_dsim_platform_data {
|
||||
char lcd_panel_name[PANEL_NAME_SIZE];
|
||||
|
||||
struct mipi_dsim_config *dsim_config;
|
||||
unsigned int enabled;
|
||||
void *lcd_panel_info;
|
||||
|
||||
int (*phy_enable)(struct platform_device *pdev, bool on);
|
||||
};
|
||||
|
||||
/*
|
||||
* struct mipi_dsim_master_ops - callbacks to mipi-dsi operations.
|
||||
*
|
||||
* @cmd_write: transfer command to lcd panel at LP mode.
|
||||
* @cmd_read: read command from rx register.
|
||||
* @get_dsim_frame_done: get the status that all screen data have been
|
||||
* transferred to mipi-dsi.
|
||||
* @clear_dsim_frame_done: clear frame done status.
|
||||
* @get_fb_frame_done: get frame done status of display controller.
|
||||
* @trigger: trigger display controller.
|
||||
* - this one would be used only in case of CPU mode.
|
||||
* @set_early_blank_mode: set framebuffer blank mode.
|
||||
* - this callback should be called prior to fb_blank() by a client driver
|
||||
* only if needing.
|
||||
* @set_blank_mode: set framebuffer blank mode.
|
||||
* - this callback should be called after fb_blank() by a client driver
|
||||
* only if needing.
|
||||
*/
|
||||
|
||||
struct mipi_dsim_master_ops {
|
||||
int (*cmd_write)(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
const unsigned char *data0, unsigned int data1);
|
||||
int (*cmd_read)(struct mipi_dsim_device *dsim, unsigned int data_id,
|
||||
unsigned int data0, unsigned int req_size, u8 *rx_buf);
|
||||
int (*get_dsim_frame_done)(struct mipi_dsim_device *dsim);
|
||||
int (*clear_dsim_frame_done)(struct mipi_dsim_device *dsim);
|
||||
|
||||
int (*get_fb_frame_done)(struct fb_info *info);
|
||||
void (*trigger)(struct fb_info *info);
|
||||
int (*set_early_blank_mode)(struct mipi_dsim_device *dsim, int power);
|
||||
int (*set_blank_mode)(struct mipi_dsim_device *dsim, int power);
|
||||
};
|
||||
|
||||
/*
|
||||
* device structure for mipi-dsi based lcd panel.
|
||||
*
|
||||
* @name: name of the device to use with this device, or an
|
||||
* alias for that name.
|
||||
* @dev: driver model representation of the device.
|
||||
* @id: id of device to be registered.
|
||||
* @bus_id: bus id for identifing connected bus
|
||||
* and this bus id should be same as id of mipi_dsim_device.
|
||||
* @irq: irq number for signaling when framebuffer transfer of
|
||||
* lcd panel module is completed.
|
||||
* this irq would be used only for MIPI-DSI based CPU mode lcd panel.
|
||||
* @master: pointer to mipi-dsi master device object.
|
||||
* @platform_data: lcd panel specific platform data.
|
||||
*/
|
||||
struct mipi_dsim_lcd_device {
|
||||
char *name;
|
||||
struct device dev;
|
||||
int id;
|
||||
int bus_id;
|
||||
int irq;
|
||||
|
||||
struct mipi_dsim_device *master;
|
||||
void *platform_data;
|
||||
};
|
||||
|
||||
/*
|
||||
* driver structure for mipi-dsi based lcd panel.
|
||||
*
|
||||
* this structure should be registered by lcd panel driver.
|
||||
* mipi-dsi driver seeks lcd panel registered through name field
|
||||
* and calls these callback functions in appropriate time.
|
||||
*
|
||||
* @name: name of the driver to use with this device, or an
|
||||
* alias for that name.
|
||||
* @id: id of driver to be registered.
|
||||
* this id would be used for finding device object registered.
|
||||
*/
|
||||
struct mipi_dsim_lcd_driver {
|
||||
char *name;
|
||||
int id;
|
||||
|
||||
void (*power_on)(struct mipi_dsim_lcd_device *dsim_dev, int enable);
|
||||
void (*set_sequence)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
int (*probe)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
int (*remove)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
void (*shutdown)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
int (*suspend)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
int (*resume)(struct mipi_dsim_lcd_device *dsim_dev);
|
||||
};
|
||||
|
||||
/*
|
||||
* register mipi_dsim_lcd_device to mipi-dsi master.
|
||||
*/
|
||||
int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device
|
||||
*lcd_dev);
|
||||
/**
|
||||
* register mipi_dsim_lcd_driver object defined by lcd panel driver
|
||||
* to mipi-dsi driver.
|
||||
*/
|
||||
int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver
|
||||
*lcd_drv);
|
||||
#endif /* _EXYNOS_MIPI_DSIM_H */
|
||||
Loading…
Reference in New Issue
Block a user