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kernel_samsung_a34x-permissive/drivers/misc/mediatek/video/mt6853/videox/mtkfb.c
Fede2782 c05564c4d8
Import A346BXXU1AWB9 kernel source 
Android 13
2024-04-28 15:49:01 +02:00

3062 lines
76 KiB
C
Executable file
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2019 MediaTek Inc.
*/
#include <generated/autoconf.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/kthread.h>
#include <linux/vmalloc.h>
#include "disp_assert_layer.h"
#include <linux/semaphore.h>
#include <linux/mutex.h>
/* #include <linux/leds-mt65xx.h> */
#include <linux/suspend.h>
#include <linux/of_fdt.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/dma-buf.h>
#include <linux/uaccess.h>
#include <linux/atomic.h>
/* #include <asm/mach-types.h> */
#include <asm/cacheflush.h>
#include <linux/io.h>
#include "ion_drv.h"
//#include "mt-plat/dma.h"
/* #include <mach/irqs.h> */
#include <linux/dma-mapping.h>
#include <linux/compat.h>
#ifdef CONFIG_MTK_AEE_FEATURE
#include "mt-plat/aee.h"
#endif
#include "mt-plat/mtk_boot.h"
#include "debug.h"
#include "ddp_hal.h"
#include "disp_drv_log.h"
#include "disp_lcm.h"
#include "mtkfb.h"
#include "mtkfb_console.h"
#include "mtkfb_fence.h"
#include "mtkfb_info.h"
#include "ddp_ovl.h"
#include "disp_drv_platform.h"
#include "primary_display.h"
#include "ddp_dump.h"
#include "display_recorder.h"
#include "fbconfig_kdebug.h"
#include "mtk_ovl.h"
#include "mtk_boot.h"
#include "disp_helper.h"
#include "compat_mtkfb.h"
#include "disp_dts_gpio.h"
#include "disp_recovery.h"
#include "ddp_clkmgr.h"
#include "ddp_log.h"
#include "ddp_m4u.h"
#include "extd_multi_control.h"
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
#include "external_display.h"
#endif
#include <mt-plat/mtk_ccci_common.h>
#include "ddp_dsi.h"
#include "smi_public.h"
/* static variable */
static u32 MTK_FB_XRES;
static u32 MTK_FB_YRES;
static u32 MTK_FB_BPP;
static u32 MTK_FB_PAGES;
static u32 fb_xres_update;
static u32 fb_yres_update;
static size_t mtkfb_log_on = true;
static int sem_flipping_cnt = 1;
static int sem_early_suspend_cnt = 1;
static int vsync_cnt;
static const struct timeval FRAME_INTERVAL = { 0, 30000 }; /* 33ms */
static bool no_update;
static struct disp_session_input_config session_input;
/* macro definiton */
#define ALIGN_TO(x, n) (((x) + ((n) - 1)) & ~((n) - 1))
#define MTK_FB_XRESV (ALIGN_TO(MTK_FB_XRES, MTK_FB_ALIGNMENT))
/* For page flipping */
#define MTK_FB_YRESV (ALIGN_TO(MTK_FB_YRES, MTK_FB_ALIGNMENT) * MTK_FB_PAGES)
#define MTK_FB_BYPP ((MTK_FB_BPP + 7) >> 3)
#define MTK_FB_LINE (ALIGN_TO(MTK_FB_XRES, MTK_FB_ALIGNMENT) * MTK_FB_BYPP)
#define MTK_FB_SIZE (MTK_FB_LINE * ALIGN_TO(MTK_FB_YRES, MTK_FB_ALIGNMENT))
#define MTK_FB_SIZEV (MTK_FB_LINE * ALIGN_TO(MTK_FB_YRES, MTK_FB_ALIGNMENT) \
* MTK_FB_PAGES)
#define ASSERT_LAYER (DDP_OVL_LAYER_MUN-1)
#define DISP_DEFAULT_UI_LAYER_ID (DDP_OVL_LAYER_MUN-1)
#define DISP_CHANGED_UI_LAYER_ID (DDP_OVL_LAYER_MUN-2)
#define NOT_REFERENCED(x) { (x) = (x); }
#ifdef CONFIG_MTK_AEE_FEATURE
#define CHECK_RET(expr) \
do { \
int ret = (expr); \
aee_kernel_exception("mtkfb", "[DISP]error:%s,%d", \
__FILE__, __LINE__); \
} while (0)
#else
#define CHECK_RET(expr)
#endif
#define MTKFB_LOG(fmt, arg...) \
do { \
if (mtkfb_log_on) \
DISP_LOG_PRINT(ANDROID_LOG_WARN, "MTKFB", fmt, ##arg); \
} while (0)
/* always show this debug info while the global debug log is off */
#define MTKFB_LOG_DBG(fmt, arg...) \
do { \
if (!mtkfb_log_on) \
DISP_LOG_PRINT(ANDROID_LOG_WARN, "MTKFB", fmt, ##arg); \
} while (0)
#define MTKFB_FUNC() \
do { \
if (mtkfb_log_on) \
DISP_LOG_PRINT(ANDROID_LOG_INFO, "MTKFB", \
"[Func]%s\n", __func__); \
} while (0)
#define PRNERR(fmt, args...) \
DISP_LOG_PRINT(ANDROID_LOG_INFO, "MTKFB", fmt, ## args)
/* ------------------------------------------------------------------------- */
/* local variables */
/* ------------------------------------------------------------------------- */
struct notifier_block pm_nb;
unsigned int EnableVSyncLog;
unsigned long fb_pa;
atomic_t has_pending_update = ATOMIC_INIT(0);
struct fb_overlay_layer video_layerInfo;
UINT32 dbr_backup;
UINT32 dbg_backup;
UINT32 dbb_backup;
bool fblayer_dither_needed;
bool is_ipoh_bootup;
struct fb_info *mtkfb_fbi;
struct fb_overlay_layer fb_layer_context;
struct mtk_dispif_info dispif_info[MTKFB_MAX_DISPLAY_COUNT];
unsigned int FB_LAYER = 2;
bool is_early_suspended = FALSE;
atomic_t OverlaySettingDirtyFlag = ATOMIC_INIT(0);
atomic_t OverlaySettingApplied = ATOMIC_INIT(0);
unsigned int PanDispSettingPending;
unsigned int PanDispSettingDirty;
unsigned int PanDispSettingApplied;
unsigned int need_esd_check;
unsigned int lcd_fps = 6000;
wait_queue_head_t screen_update_wq;
char mtkfb_lcm_name[256] = { 0 };
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
struct fb_info *ext_mtkfb_fb;
unsigned long ext_fb_pa;
unsigned int ext_lcd_fps = 6000;
char ext_mtkfb_lcm_name[256] = { 0 };
#endif
DEFINE_SEMAPHORE(sem_flipping);
DEFINE_SEMAPHORE(sem_early_suspend);
DEFINE_SEMAPHORE(sem_overlay_buffer);
/* ------------------------------------------------------------------------- */
/* local function declarations */
/* ------------------------------------------------------------------------- */
static int mtkfb_set_par(struct fb_info *fbi);
static int init_framebuffer(struct fb_info *info);
static int mtkfb_get_overlay_layer_info(
struct fb_overlay_layer_info *layerInfo);
#ifdef CONFIG_OF
static int _parse_tag_videolfb(void);
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
static void mtkfb_late_resume(void);
static void mtkfb_early_suspend(void);
#endif
void mtkfb_log_enable(int enable)
{
mtkfb_log_on = enable;
MTKFB_LOG("mtkfb log %s\n", enable ? "enabled" : "disabled");
}
/* Called each time the mtkfb device is opened */
static int mtkfb_open(struct fb_info *info, int user)
{
NOT_REFERENCED(info);
NOT_REFERENCED(user);
DISPFUNC();
MSG_FUNC_ENTER();
MSG_FUNC_LEAVE();
return 0;
}
/* Called when the mtkfb device is closed. We make sure that any pending*/
/* gfx DMA operations are ended, before we return. */
static int mtkfb_release(struct fb_info *info, int user)
{
NOT_REFERENCED(info);
NOT_REFERENCED(user);
DISPFUNC();
MSG_FUNC_ENTER();
MSG_FUNC_LEAVE();
return 0;
}
/* Store a single color palette entry into a pseudo palette or the hardware
* palette if one is available. For now we support only 16bpp and thus store
* the entry only to the pseudo palette.
*/
static int mtkfb_setcolreg(u_int regno, u_int red, u_int green,
u_int blue, u_int transp, struct fb_info *info)
{
int r = 0;
unsigned int bpp;
unsigned long long m;
NOT_REFERENCED(transp);
MSG_FUNC_ENTER();
bpp = info->var.bits_per_pixel;
m = 1 << bpp;
if (regno >= m) {
r = -EINVAL;
goto exit;
}
switch (bpp) {
case 16:
/* RGB 565 */
((u32 *) (info->pseudo_palette))[regno] =
((red & 0xF800) | ((green & 0xFC00) >> 5) |
((blue & 0xF800) >> 11));
break;
case 32:
/* ARGB8888 */
((u32 *) (info->pseudo_palette))[regno] =
(0xff000000) |
((red & 0xFF00) << 8) | ((green & 0xFF00)) |
((blue & 0xFF00) >> 8);
break;
/* TODO: RGB888, BGR888, ABGR8888 */
default:
DISPERR("set color info fail,bpp=%d\n", bpp);
ASSERT(0);
r = -EINVAL;
}
exit:
MSG_FUNC_LEAVE();
return r;
}
#if defined(CONFIG_PM_AUTOSLEEP)
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
static int mtkfb1_blank(int blank_mode, struct fb_info *info)
{
pr_debug("%s blank mode :%d\n", __func__, blank_mode);
switch (blank_mode) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
/* parameter 0 is to all external display should be resumed,
* 0x20003 is dual lcm session
*/
external_display_resume(0x20003);
break;
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
break;
case FB_BLANK_POWERDOWN:
/* parameter 0 is to all external display should be suspend,
* 0x20003 is dual lcm session
*/
external_display_suspend(0x20003);
break;
default:
return -EINVAL;
}
return 0;
}
#endif
static int mtkfb_blank(int blank_mode, struct fb_info *info)
{
enum mtkfb_power_mode prev_pm = primary_display_get_power_mode();
switch (blank_mode) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
DISPDBG("%s mtkfb_late_resume\n", __func__);
if (bypass_blank) {
DISPWARN("FB_BLANK_UNBLANK bypass_blank %d\n",
bypass_blank);
break;
}
primary_display_set_power_mode(FB_RESUME);
mtkfb_late_resume();
debug_print_power_mode_check(prev_pm, FB_RESUME);
break;
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
break;
case FB_BLANK_POWERDOWN:
DISPDBG("%s mtkfb_early_suspend\n", __func__);
if (bypass_blank) {
DISPWARN("FB_BLANK_POWERDOWN bypass_blank %d\n",
bypass_blank);
break;
}
primary_display_set_power_mode(FB_SUSPEND);
mtkfb_early_suspend();
debug_print_power_mode_check(prev_pm, FB_SUSPEND);
break;
default:
return -EINVAL;
}
return 0;
}
#endif
int mtkfb_set_backlight_level(unsigned int level)
{
MTKFB_FUNC();
DISPDBG("%s:%d Start\n",
__func__, level);
primary_display_setbacklight(level);
DISPDBG("%s End\n", __func__);
return 0;
}
EXPORT_SYMBOL(mtkfb_set_backlight_level);
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
int mtkfb1_set_backlight_level(unsigned int level)
{
MTKFB_FUNC();
/* DISPDBG("mtkfb1_set_backlight_level:%d Start\n", level); */
external_display_setbacklight(level);
/* DISPDBG("mtkfb1_set_backlight_level End\n"); */
return 0;
}
EXPORT_SYMBOL(mtkfb1_set_backlight_level);
#endif
int mtkfb_set_backlight_mode(unsigned int mode)
{
MTKFB_FUNC();
if (down_interruptible(&sem_flipping)) {
DISPERR("[FB Driver] can't get semaphore:%d\n",
__LINE__);
return -ERESTARTSYS;
}
sem_flipping_cnt--;
if (down_interruptible(&sem_early_suspend)) {
DISPERR("[FB Driver] can't get semaphore:%d\n",
__LINE__);
sem_flipping_cnt++;
up(&sem_flipping);
return -ERESTARTSYS;
}
sem_early_suspend_cnt--;
if (primary_display_is_sleepd())
goto End;
/* DISP_SetBacklight_mode(mode); */
End:
sem_flipping_cnt++;
sem_early_suspend_cnt++;
up(&sem_early_suspend);
up(&sem_flipping);
return 0;
}
EXPORT_SYMBOL(mtkfb_set_backlight_mode);
int mtkfb_set_backlight_pwm(int div)
{
MTKFB_FUNC();
if (down_interruptible(&sem_flipping)) {
DISPERR("[FB Driver] can't get semaphore:%d\n",
__LINE__);
return -ERESTARTSYS;
}
sem_flipping_cnt--;
if (down_interruptible(&sem_early_suspend)) {
DISPERR("[FB Driver] can't get semaphore:%d\n",
__LINE__);
sem_flipping_cnt++;
up(&sem_flipping);
return -ERESTARTSYS;
}
sem_early_suspend_cnt--;
if (primary_display_is_sleepd())
goto End;
/* DISP_SetPWM(div); */
End:
sem_flipping_cnt++;
sem_early_suspend_cnt++;
up(&sem_early_suspend);
up(&sem_flipping);
return 0;
}
EXPORT_SYMBOL(mtkfb_set_backlight_pwm);
int mtkfb_get_backlight_pwm(int div, unsigned int *freq)
{
/* DISP_GetPWM(div, freq); */
return 0;
}
EXPORT_SYMBOL(mtkfb_get_backlight_pwm);
void mtkfb_waitVsync(void)
{
if (primary_display_is_sleepd()) {
DISPMSG("[MTKFB_VSYNC]:mtkfb has suspend, return directly\n");
msleep(20);
return;
}
vsync_cnt++;
#ifdef CONFIG_FPGA_EARLY_PORTING
msleep(20);
#else
primary_display_wait_for_vsync(NULL);
#endif
vsync_cnt--;
}
EXPORT_SYMBOL(mtkfb_waitVsync);
static int _convert_fb_layer_to_disp_input(struct fb_overlay_layer *src,
struct disp_input_config *dst)
{
dst->layer_id = src->layer_id;
dst->dirty_roi_num = 0;
if (!src->layer_enable) {
dst->layer_enable = 0;
return 0;
}
switch (src->src_fmt) {
case MTK_FB_FORMAT_YUV422:
dst->src_fmt = DISP_FORMAT_YUV422;
break;
case MTK_FB_FORMAT_RGB565:
dst->src_fmt = DISP_FORMAT_RGB565;
break;
case MTK_FB_FORMAT_RGB888:
dst->src_fmt = DISP_FORMAT_RGB888;
break;
case MTK_FB_FORMAT_BGR888:
dst->src_fmt = DISP_FORMAT_BGR888;
break;
case MTK_FB_FORMAT_ARGB8888:
dst->src_fmt = DISP_FORMAT_ARGB8888;
break;
case MTK_FB_FORMAT_ABGR8888:
dst->src_fmt = DISP_FORMAT_ABGR8888;
break;
case MTK_FB_FORMAT_BGRA8888:
dst->src_fmt = DISP_FORMAT_BGRA8888;
break;
case MTK_FB_FORMAT_XRGB8888:
dst->src_fmt = DISP_FORMAT_XRGB8888;
break;
case MTK_FB_FORMAT_XBGR8888:
dst->src_fmt = DISP_FORMAT_XBGR8888;
break;
case MTK_FB_FORMAT_UYVY:
dst->src_fmt = DISP_FORMAT_UYVY;
break;
default:
DISPWARN("Invalid color format: 0x%x\n",
src->src_fmt);
return -1;
}
dst->src_base_addr = src->src_base_addr;
dst->security = src->security;
dst->src_phy_addr = src->src_phy_addr;
DISPDBG("%s:dst->addr=0x%p\n", __func__,
dst->src_phy_addr);
dst->isTdshp = src->isTdshp;
dst->next_buff_idx = src->next_buff_idx;
dst->identity = src->identity;
dst->connected_type = src->connected_type;
/* set Alpha blending */
dst->alpha = src->alpha;
if (src->src_fmt == MTK_FB_FORMAT_ARGB8888 ||
src->src_fmt == MTK_FB_FORMAT_ABGR8888)
dst->alpha_enable = TRUE;
else
dst->alpha_enable = FALSE;
/* set src width, src height */
dst->src_offset_x = src->src_offset_x;
dst->src_offset_y = src->src_offset_y;
dst->src_width = src->src_width;
dst->src_height = src->src_height;
dst->tgt_offset_x = src->tgt_offset_x;
dst->tgt_offset_y = src->tgt_offset_y;
dst->tgt_width = src->tgt_width;
dst->tgt_height = src->tgt_height;
if (dst->tgt_width > dst->src_width)
dst->tgt_width = dst->src_width;
if (dst->tgt_height > dst->src_height)
dst->tgt_height = dst->src_height;
dst->src_pitch = src->src_pitch;
/* set color key */
dst->src_color_key = src->src_color_key;
dst->src_use_color_key = src->src_use_color_key;
/* data transferring is triggerred in MTKFB_TRIG_OVERLAY_OUT */
dst->layer_enable = src->layer_enable;
dst->ext_sel_layer = -1;
#if 1
DISPDBG(
"%s:id=%u,en=%u,next_idx=%u,vaddr=%p,pa=%p,srcfmt=%u,dstfmt=%u,pitch=%u,x=%u,y=%u,w=%u,h=%u\n",
__func__, dst->layer_id, dst->layer_enable,
dst->next_buff_idx, dst->src_base_addr,
dst->src_phy_addr, src->src_fmt, dst->src_fmt,
dst->src_pitch, dst->src_offset_x,
dst->src_offset_y, dst->src_width, dst->src_height);
DISPDBG(
"%s:target xoff=%u, target yoff=%u, target w=%u, target h=%u, aen=%u\n",
__func__, dst->tgt_offset_x, dst->tgt_offset_y,
dst->tgt_width, dst->tgt_height, dst->alpha_enable);
#endif
return 0;
}
static int mtkfb_pan_display_impl(struct fb_var_screeninfo *var,
struct fb_info *info)
{
UINT32 offset = 0;
UINT32 paStart = 0;
char *vaStart = NULL, *vaEnd = NULL;
int ret = 0;
/* int wait_ret = 0; */
/* unsigned int layerpitch = 0; */
unsigned int src_pitch = 0;
struct disp_session_input_config *session_input;
struct disp_input_config *input;
/* DISPFUNC(); */
if (no_update) {
DISPMSG(
"the first time of%s will be ignored\n", __func__);
return ret;
}
DISPCHECK("pan_display: offset(%u,%u), res(%u,%u), resv(%u,%u)\n",
var->xoffset, var->yoffset, info->var.xres, info->var.yres,
info->var.xres_virtual, info->var.yres_virtual);
info->var.yoffset = var->yoffset;
offset = var->yoffset * info->fix.line_length;
paStart = fb_pa + offset;
vaStart = info->screen_base + offset;
vaEnd = vaStart + info->var.yres * info->fix.line_length;
DISPCHECK("fb dump: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
*(unsigned int *)vaStart,
*(unsigned int *)(vaStart+4),
*(unsigned int *)(vaStart+8),
*(unsigned int *)(vaStart+0xC));
session_input = kzalloc(sizeof(*session_input), GFP_KERNEL);
if (!session_input) {
DISPERR("session input allocat fail\n");
ASSERT(0);
return -1;
}
/* pan display use layer 0 */
input = &session_input->config[0];
input->layer_id = 0;
input->src_phy_addr = (void *)((unsigned long)paStart);
input->src_base_addr = (void *)((unsigned long)vaStart);
input->layer_id = primary_display_get_option("FB_LAYER");
input->layer_enable = 1;
input->src_offset_x = 0;
input->src_offset_y = 0;
input->src_width = var->xres;
input->src_height = var->yres;
input->tgt_offset_x = 0;
input->tgt_offset_y = 0;
input->tgt_width = var->xres;
input->tgt_height = var->yres;
input->ext_sel_layer = -1;
switch (var->bits_per_pixel) {
case 16:
input->src_fmt = DISP_FORMAT_RGB565;
break;
case 24:
input->src_fmt = DISP_FORMAT_RGB888;
break;
case 32:
input->src_fmt =
(var->blue.offset == 0) ?
DISP_FORMAT_BGRA8888 : DISP_FORMAT_RGBX8888;
break;
default:
DISPWARN("Invalid color format bpp: %d\n", var->bits_per_pixel);
kfree(session_input);
return -1;
}
input->alpha_enable = FALSE;
input->alpha = 0xFF;
input->next_buff_idx = -1;
src_pitch = ALIGN_TO(var->xres, MTK_FB_ALIGNMENT);
input->src_pitch = src_pitch;
input->ext_sel_layer = -1;
session_input->config_layer_num++;
session_input->setter = SESSION_USER_PANDISP;
if (!is_DAL_Enabled()) {
/* disable font layer(layer3) drawed in lk */
session_input->config[1].layer_id =
primary_display_get_option("ASSERT_LAYER");
session_input->config[1].next_buff_idx = -1;
session_input->config[1].layer_enable = 0;
session_input->config_layer_num++;
}
ret = primary_display_config_input_multiple(session_input);
ret = primary_display_trigger(TRUE, NULL, 0);
kfree(session_input);
return ret;
}
/* Set fb_info.fix fields and also updates fbdev.
* When calling this fb_info.var must be set up already.
*/
static void set_fb_fix(struct mtkfb_device *fbdev)
{
struct fb_info *fbi = fbdev->fb_info;
struct fb_fix_screeninfo *fix = &fbi->fix;
struct fb_var_screeninfo *var = &fbi->var;
struct fb_ops *fbops = fbi->fbops;
strncpy(fix->id, MTKFB_DRIVER, sizeof(fix->id));
fix->type = FB_TYPE_PACKED_PIXELS;
switch (var->bits_per_pixel) {
case 16:
case 24:
case 32:
fix->visual = FB_VISUAL_TRUECOLOR;
break;
case 1:
case 2:
case 4:
case 8:
fix->visual = FB_VISUAL_PSEUDOCOLOR;
break;
default:
DISPERR("set fb fix fail,bits per pixel=%d\n",
var->bits_per_pixel);
return;
}
fix->accel = FB_ACCEL_NONE;
fix->line_length = ALIGN_TO(var->xres_virtual, MTK_FB_ALIGNMENT) *
var->bits_per_pixel / 8;
fix->smem_len = fbdev->fb_size_in_byte;
fix->smem_start = fbdev->fb_pa_base;
fix->xpanstep = 0;
fix->ypanstep = 1;
fbops->fb_fillrect = cfb_fillrect;
fbops->fb_copyarea = cfb_copyarea;
fbops->fb_imageblit = cfb_imageblit;
}
/* Check values in var, try to adjust them in case of out of bound values if
* possible, or return error.
*/
static int mtkfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
{
unsigned int bpp;
unsigned long max_frame_size;
unsigned long line_size;
struct mtkfb_device *fbdev = (struct mtkfb_device *)fbi->par;
/* DISPFUNC(); */
DISPCHECK(
"%s:xres=%u,yres=%u,x_virt=%u,y_virt=%u,xoffset=%u,yoffset=%u,bits_per_pixel=%u)\n",
__func__, var->xres, var->yres, var->xres_virtual,
var->yres_virtual, var->xoffset, var->yoffset,
var->bits_per_pixel);
bpp = var->bits_per_pixel;
if (bpp != 16 && bpp != 24 && bpp != 32) {
MTKFB_LOG("[%s]unsupported bpp: %d", __func__, bpp);
return -1;
}
switch (var->rotate) {
case 0:
case 180:
var->xres = MTK_FB_XRES;
var->yres = MTK_FB_YRES;
break;
case 90:
case 270:
var->xres = MTK_FB_YRES;
var->yres = MTK_FB_XRES;
break;
default:
return -1;
}
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
max_frame_size = fbdev->fb_size_in_byte;
DISPDBG("fbdev->fb_size_in_byte=0x%08lx\n",
fbdev->fb_size_in_byte);
line_size = var->xres_virtual * bpp / 8;
if (line_size * var->yres_virtual > max_frame_size) {
/* Try to keep yres_virtual first */
line_size = max_frame_size / var->yres_virtual;
var->xres_virtual = line_size * 8 / bpp;
if (var->xres_virtual < var->xres) {
/* Still doesn't fit. Shrink yres_virtual too */
var->xres_virtual = var->xres;
line_size = var->xres * bpp / 8;
var->yres_virtual = max_frame_size / line_size;
}
}
DISPDBG(
"%s: xres=%u,yres=%u,x_virt=%u,y_virl=%u,xoffset=%u,yoffset=%u,bits_per_pixel=%u)\n",
__func__, var->xres, var->yres, var->xres_virtual,
var->yres_virtual, var->xoffset, var->yoffset,
var->bits_per_pixel);
if (var->xres + var->xoffset > var->xres_virtual)
var->xoffset = var->xres_virtual - var->xres;
if (var->yres + var->yoffset > var->yres_virtual)
var->yoffset = var->yres_virtual - var->yres;
DISPMSG(
"%s: xres=%u,yres=%u,x_virt=%u,y_virt=%u,xoffset=%u,yoffset=%u,bits_per_pixel=%u)\n",
__func__, var->xres, var->yres, var->xres_virtual,
var->yres_virtual, var->xoffset, var->yoffset,
var->bits_per_pixel);
if (bpp == 16) {
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.offset = 0;
var->transp.length = 0;
} else if (bpp == 24) {
var->red.length = var->green.length = var->blue.length = 8;
var->transp.length = 0;
ASSERT(var->green.offset == 8);
ASSERT((var->red.offset + var->blue.offset) == 16);
ASSERT((var->red.offset == 16 || var->red.offset == 0));
} else if (bpp == 32) {
var->red.length = var->green.length =
var->blue.length = var->transp.length = 8;
ASSERT((var->red.offset + var->blue.offset == 16) ||
(var->red.offset + var->blue.offset == 32));
ASSERT((var->red.offset == 16 || var->red.offset == 0) ||
(var->red.offset == 24 || var->red.offset == 8));
}
var->red.msb_right = var->green.msb_right =
var->blue.msb_right = var->transp.msb_right = 0;
if (var->activate & FB_ACTIVATE_NO_UPDATE)
no_update = true;
else
no_update = false;
var->activate = FB_ACTIVATE_NOW;
var->height = UINT_MAX;
var->width = UINT_MAX;
var->grayscale = 0;
var->nonstd = 0;
var->pixclock = UINT_MAX;
var->left_margin = UINT_MAX;
var->right_margin = UINT_MAX;
var->upper_margin = UINT_MAX;
var->lower_margin = UINT_MAX;
var->hsync_len = UINT_MAX;
var->vsync_len = UINT_MAX;
var->vmode = FB_VMODE_NONINTERLACED;
var->sync = 0;
MSG_FUNC_LEAVE();
return 0;
}
/* Switch to a new mode. The parameters for it has been check already by
* mtkfb_check_var.
*/
static int mtkfb_set_par(struct fb_info *fbi)
{
struct fb_var_screeninfo *var = &fbi->var;
struct mtkfb_device *fbdev = (struct mtkfb_device *)fbi->par;
struct fb_overlay_layer fb_layer;
u32 bpp = var->bits_per_pixel;
struct disp_session_input_config *session_input;
struct disp_input_config *input;
/* DISPFUNC(); */
memset(&fb_layer, 0, sizeof(struct fb_overlay_layer));
switch (bpp) {
case 16:
fb_layer.src_fmt = MTK_FB_FORMAT_RGB565;
fb_layer.src_use_color_key = 1;
fb_layer.src_color_key = 0xFF000000;
break;
case 24:
fb_layer.src_use_color_key = 1;
fb_layer.src_fmt = (var->blue.offset == 0) ?
MTK_FB_FORMAT_RGB888 : MTK_FB_FORMAT_BGR888;
fb_layer.src_color_key = 0xFF000000;
break;
case 32:
fb_layer.src_use_color_key = 0;
DISPDBG("set_par,var->blue.offset=%d\n", var->blue.offset);
fb_layer.src_fmt = (var->blue.offset == 0) ?
MTK_FB_FORMAT_ARGB8888 : MTK_FB_FORMAT_BGRA8888;
fb_layer.src_color_key = 0;
break;
default:
fb_layer.src_fmt = MTK_FB_FORMAT_UNKNOWN;
DISPWARN("[%s]unsupported bpp: %d", __func__, bpp);
return -1;
}
set_fb_fix(fbdev);
fb_layer.layer_id = primary_display_get_option("FB_LAYER");
fb_layer.layer_enable = 1;
fb_layer.src_base_addr =
(void *)((unsigned long)fbdev->fb_va_base + var->yoffset *
fbi->fix.line_length);
DISPDBG(
"fb_pa=0x%08lx, var->yoffset=0x%08x,fbi->fix.line_length=0x%08x\n",
fb_pa, var->yoffset, fbi->fix.line_length);
fb_layer.src_phy_addr =
(void *)(fb_pa + var->yoffset * fbi->fix.line_length);
fb_layer.src_direct_link = 0;
fb_layer.src_offset_x = fb_layer.src_offset_y = 0;
fb_layer.src_pitch = ALIGN_TO(var->xres, MTK_FB_ALIGNMENT);
fb_layer.src_width = fb_layer.tgt_width = var->xres;
fb_layer.src_height = fb_layer.tgt_height = var->yres;
fb_layer.tgt_offset_x = fb_layer.tgt_offset_y = 0;
fb_layer.alpha = 0xff;
/* fb_layer.src_color_key = 0; */
fb_layer.layer_rotation = MTK_FB_ORIENTATION_0;
fb_layer.layer_type = LAYER_2D;
DISPDBG("%s: fb_layer.src_fmt=%x\n", __func__, fb_layer.src_fmt);
session_input = kzalloc(sizeof(*session_input), GFP_KERNEL);
if (!session_input)
goto out;
session_input->config_layer_num = 0;
if (!is_DAL_Enabled()) {
int layer_num;
DISPCHECK("AEE is not enabled, will disable layer 3\n");
layer_num = session_input->config_layer_num;
input = &session_input->config[layer_num];
session_input->config_layer_num++;
input->layer_id = primary_display_get_option("ASSERT_LAYER");
input->layer_enable = 0;
} else {
DISPCHECK("AEE is enabled, should not disable layer 3\n");
}
input = &session_input->config[session_input->config_layer_num++];
_convert_fb_layer_to_disp_input(&fb_layer, input);
session_input->setter = SESSION_USER_INVALID;
primary_display_config_input_multiple(session_input);
kfree(session_input);
out:
/* backup fb_layer information. */
memcpy(&fb_layer_context, &fb_layer, sizeof(fb_layer));
MSG_FUNC_LEAVE();
return 0;
}
static int mtkfb_soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
NOT_REFERENCED(info);
NOT_REFERENCED(cursor);
return 0;
}
static int mtkfb_get_overlay_layer_info(
struct fb_overlay_layer_info *layerInfo)
{
return 0;
}
void mtkfb_dump_layer_info(void)
{
}
UINT32 color;
unsigned int mtkfb_fm_auto_test(void)
{
unsigned int result = 0;
unsigned int i = 0;
unsigned long fbVirAddr;
UINT32 fbsize;
int r = 0;
unsigned int *fb_buffer;
struct mtkfb_device *fbdev =
(struct mtkfb_device *)mtkfb_fbi->par;
struct fb_var_screeninfo var;
int idle_state_backup =
disp_helper_get_option(DISP_OPT_IDLE_MGR);
if (primary_display_is_sleepd()) {
DISPWARN("primary display path is already sleep, skip\n");
return 0;
}
if (idle_state_backup) {
primary_display_idlemgr_kick(__func__, 0);
disp_helper_set_option(DISP_OPT_IDLE_MGR, 0);
}
fbVirAddr = (unsigned long)fbdev->fb_va_base;
fb_buffer = (unsigned int *)fbVirAddr;
memcpy(&var, &(mtkfb_fbi->var), sizeof(var));
var.activate = FB_ACTIVATE_NOW;
var.bits_per_pixel = 32;
var.transp.offset = 24;
var.transp.length = 8;
var.red.offset = 16;
var.red.length = 8;
var.green.offset = 8;
var.green.length = 8;
var.blue.offset = 0;
var.blue.length = 8;
r = mtkfb_check_var(&var, mtkfb_fbi);
if (r != 0)
PRNERR("failed to mtkfb_check_var\n");
mtkfb_fbi->var = var;
if (color == 0)
color = 0xFF00FF00;
fbsize =
ALIGN_TO(DISP_GetScreenWidth(),
MTK_FB_ALIGNMENT) * DISP_GetScreenHeight() * MTK_FB_PAGES;
for (i = 0; i < fbsize; i++)
*fb_buffer++ = color;
mtkfb_pan_display_impl(&mtkfb_fbi->var, mtkfb_fbi);
msleep(100);
result = primary_display_lcm_ATA();
if (idle_state_backup)
disp_helper_set_option(DISP_OPT_IDLE_MGR, idle_state_backup);
if (result == 0)
DISPERR("ATA LCM failed\n");
else
DISPMSG("ATA LCM passed\n");
return result;
}
static int mtkfb_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg)
{
void __user *argp = (void __user *)arg;
enum DISP_STATUS ret = 0;
int r = 0;
DISPFUNC();
/* / M: dump debug mmprofile log info */
DISPDBG("%s, info=%p, cmd nr=0x%08x, cmd size=0x%08x\n", __func__,
info, (unsigned int)_IOC_NR(cmd), (unsigned int)_IOC_SIZE(cmd));
switch (cmd) {
case MTKFB_GET_FRAMEBUFFER_MVA:
return copy_to_user(argp, &fb_pa, sizeof(fb_pa)) ? -EFAULT : 0;
case MTKFB_GET_DISPLAY_IF_INFORMATION:
{
int displayid = 0;
if (copy_from_user(&displayid, (void __user *)arg,
sizeof(displayid))) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
return -EFAULT;
}
if (displayid == 0) {
dispif_info[displayid].displayWidth =
primary_display_get_width();
dispif_info[displayid].displayHeight =
primary_display_get_height();
dispif_info[displayid].lcmOriginalWidth =
primary_display_get_original_width();
dispif_info[displayid].lcmOriginalHeight =
primary_display_get_original_height();
dispif_info[displayid].displayMode =
primary_display_is_video_mode() ? 0 : 1;
} else {
DISPERR(
"information for displayid: %d is not available now\n",
displayid);
return -EFAULT;
}
if (copy_to_user((void __user *)arg, &(dispif_info[displayid]),
sizeof(struct mtk_dispif_info))) {
MTKFB_LOG("[FB]: copy_to_user failed! line:%d\n",
__LINE__);
r = -EFAULT;
}
return r;
}
case MTKFB_SET_AOD_POWER_MODE:
{
enum mtkfb_aod_power_mode aod_pm = MTKFB_AOD_POWER_MODE_ERROR;
enum mtkfb_power_mode prev_pm =
primary_display_get_power_mode();
aod_pm = (enum mtkfb_aod_power_mode)arg;
DISPCHECK("AOD: ioctl: %s\n",
aod_pm ? "AOD_DOZE_SUSPEND" : "AOD_DOZE");
if (!primary_is_aod_supported()) {
DISPCHECK("AOD: feature not support\n");
return r;
}
if (aod_pm == MTKFB_AOD_DOZE_SUSPEND) {
/*
* First DOZE to power on dispsys and
* LCM(low power mode). Then DOZE_SUSPEND to
* power off dispsys.
*/
if (primary_display_is_sleepd() &&
primary_display_get_lcm_power_state()) {
primary_display_set_power_mode(DOZE);
primary_display_resume();
debug_print_power_mode_check(prev_pm, DOZE);
}
primary_display_set_power_mode(DOZE_SUSPEND);
ret = primary_display_suspend();
debug_print_power_mode_check(prev_pm, DOZE_SUSPEND);
} else if (aod_pm == MTKFB_AOD_DOZE) {
primary_display_set_power_mode(DOZE);
ret = primary_display_resume();
debug_print_power_mode_check(prev_pm, DOZE);
} else {
DISPERR("AOD: error: unknown AOD power mode %d\n",
aod_pm);
}
if (ret < 0)
DISPERR("AOD: set %s failed\n",
aod_pm ? "AOD_SUSPEND" : "AOD_RESUME");
break;
}
case MTKFB_POWEROFF:
{
MTKFB_FUNC();
if (primary_display_is_sleepd()) {
DISPWARN("[FB Driver] is still in MTKFB_POWEROFF!!!\n");
return r;
}
DISPDBG("[FB Driver] enter MTKFB_POWEROFF\n");
/* TODO: remove unnessecary IOCTL
* It will call SurfaceFlinger blank before this
* that do the same thing,
* so it is trivial now.
*/
/*ret = primary_display_suspend();*/
if (ret < 0)
DISPERR("primary display suspend failed\n");
DISPDBG("[FB Driver] leave MTKFB_POWEROFF\n");
is_early_suspended = TRUE; /* no care */
return r;
}
case MTKFB_POWERON:
{
MTKFB_FUNC();
if (primary_display_is_alive()) {
DISPWARN("[FB Driver] is still in MTKFB_POWERON!!!\n");
return r;
}
DISPDBG("[FB Driver] enter MTKFB_POWERON\n");
/* TODO: remove unnessecary IOCTL
* It will call SurfaceFlinger unblank after this
* that do the same thing,
* so it is trivial now.
*/
/*primary_display_resume();*/
DISPDBG("[FB Driver] leave MTKFB_POWERON\n");
is_early_suspended = FALSE; /* no care */
return r;
}
case MTKFB_GET_POWERSTATE:
{
int power_state;
if (primary_display_is_sleepd())
power_state = 0;
else
power_state = 1;
if (copy_to_user(argp, &power_state,
sizeof(power_state))) {
pr_info("MTKFB_GET_POWERSTATE failed\n");
return -EFAULT;
}
return 0;
}
case MTKFB_CONFIG_IMMEDIATE_UPDATE:
{
MTKFB_LOG("[%s] MTKFB_CONFIG_IMMEDIATE_UPDATE, enable = %lu\n",
__func__, arg);
if (down_interruptible(&sem_early_suspend)) {
MTKFB_LOG("[%s] can't get semaphore:%d\n",
__func__, __LINE__);
return -ERESTARTSYS;
}
sem_early_suspend_cnt--;
up(&sem_early_suspend);
return r;
}
case MTKFB_CAPTURE_FRAMEBUFFER:
{
unsigned long *src_pbuf = 0;
unsigned int pixel_bpp = primary_display_get_bpp() / 8;
unsigned int fbsize = DISP_GetScreenHeight() *
DISP_GetScreenWidth() * pixel_bpp;
src_pbuf = vmalloc(fbsize);
if (!src_pbuf) {
MTKFB_LOG(
"[FB]: vmalloc capture src_pbuf failed! line:%d\n",
__LINE__);
return -EFAULT;
}
dprec_logger_start(DPREC_LOGGER_WDMA_DUMP, 0, 0);
r = primary_display_capture_framebuffer_ovl(
(unsigned long)src_pbuf, UFMT_BGRA8888);
if (r < 0)
DISPERR(
"primary display capture framebuffer failed!\n");
dprec_logger_done(DPREC_LOGGER_WDMA_DUMP, 0, 0);
if (copy_to_user((void __user *)arg, src_pbuf, fbsize)) {
MTKFB_LOG("[FB]: copy_to_user failed! line:%d\n",
__LINE__);
r = -EFAULT;
}
vfree(src_pbuf);
return r;
}
case MTKFB_SLT_AUTO_CAPTURE:
{
#if 0
struct fb_slt_catpure capConfig;
unsigned long *src_pbuf = 0;
unsigned int format;
unsigned int pixel_bpp = primary_display_get_bpp() / 8;
unsigned int fbsize = DISP_GetScreenHeight() *
DISP_GetScreenWidth() * pixel_bpp;
if (copy_from_user(&capConfig, (void __user *)arg,
sizeof(capConfig))) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
return -EFAULT;
}
switch (capConfig.format) {
case MTK_FB_FORMAT_RGB888:
format = UFMT_RGB888;
break;
case MTK_FB_FORMAT_BGR888:
format = UFMT_BGR888;
break;
case MTK_FB_FORMAT_ARGB8888:
format = UFMT_ARGB8888;
break;
case MTK_FB_FORMAT_RGB565:
format = UFMT_RGB565;
break;
case MTK_FB_FORMAT_UYVY:
format = UFMT_UYVY;
break;
case MTK_FB_FORMAT_ABGR8888:
default:
format = UFMT_ABGR8888;
break;
}
src_pbuf = vmalloc(fbsize);
if (!src_pbuf) {
MTKFB_LOG(
"[FB]: vmalloc capture src_pbuf failed! line:%d\n",
__LINE__);
return -EFAULT;
}
r = primary_display_capture_framebuffer_ovl(
(unsigned long)src_pbuf, format);
if (r < 0)
DISPERR(
"primary display capture framebuffer failed!\n");
if (copy_to_user((void __user *)arg,
src_pbuf, fbsize)) {
MTKFB_LOG("[FB]: copy_to_user failed! line:%d\n",
__LINE__);
r = -EFAULT;
}
vfree(src_pbuf);
#endif
return r;
}
case MTKFB_GET_OVERLAY_LAYER_INFO:
{
struct fb_overlay_layer_info layerInfo;
MTKFB_LOG(" %s():MTKFB_GET_OVERLAY_LAYER_INFO\n", __func__);
if (copy_from_user(&layerInfo, (void __user *)arg,
sizeof(layerInfo))) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
return -EFAULT;
}
if (mtkfb_get_overlay_layer_info(&layerInfo) < 0) {
MTKFB_LOG("[FB]: Failed to get overlay layer info\n");
return -EFAULT;
}
if (copy_to_user((void __user *)arg, &layerInfo,
sizeof(layerInfo))) {
MTKFB_LOG("[FB]: copy_to_user failed! line:%d\n",
__LINE__);
r = -EFAULT;
}
return r;
}
case MTKFB_SET_OVERLAY_LAYER:
{ /* no function */
struct fb_overlay_layer *layerInfo;
struct disp_input_config *input;
int layer_num;
DISPMSG(" %s():MTKFB_SET_OVERLAY_LAYER\n", __func__);
layerInfo = kmalloc(sizeof(*layerInfo), GFP_KERNEL);
if (!layerInfo)
return -ENOMEM;
if (copy_from_user(layerInfo, (void __user *)arg,
sizeof(*layerInfo))) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
kfree(layerInfo);
return -EFAULT;
}
/* in early suspend mode ,will not update buffer index,
* info SF by return value
*/
if (primary_display_is_sleepd()) {
DISPWARN("[FB] set overlay in early suspend ,skip!\n");
kfree(layerInfo);
return MTKFB_ERROR_IS_EARLY_SUSPEND;
}
memset((void *)&session_input, 0, sizeof(session_input));
layer_num = session_input.config_layer_num;
input = &session_input.config[layer_num];
session_input.config_layer_num++;
session_input.setter = SESSION_USER_PANDISP;
_convert_fb_layer_to_disp_input(layerInfo, input);
primary_display_config_input_multiple(&session_input);
primary_display_trigger(1, NULL, 0);
kfree(layerInfo);
return r;
}
case MTKFB_ERROR_INDEX_UPDATE_TIMEOUT:
{
pr_info("[DDP] %s():MTKFB_ERROR_INDEX_UPDATE_TIMEOUT\n",
__func__);
/* call info dump function here */
/* mtkfb_dump_layer_info(); */
return r;
}
case MTKFB_ERROR_INDEX_UPDATE_TIMEOUT_AEE:
{
pr_info("[DDP] %s():MTKFB_ERROR_INDEX_UPDATE_TIMEOUT\n",
__func__);
/* call info dump function here */
/* mtkfb_dump_layer_info(); */
return r;
}
case MTKFB_SET_VIDEO_LAYERS:
{
struct mmp_fb_overlay_layers {
struct fb_overlay_layer Layer0;
struct fb_overlay_layer Layer1;
struct fb_overlay_layer Layer2;
struct fb_overlay_layer Layer3;
};
struct fb_overlay_layer *layerInfo;
int layerInfo_size = sizeof(struct fb_overlay_layer) *
VIDEO_LAYER_COUNT;
int32_t i;
struct disp_input_config *input;
int layer_num;
DISPMSG(" %s():MTKFB_SET_VIDEO_LAYERS\n",
__func__);
layerInfo = kmalloc(layerInfo_size, GFP_KERNEL);
if (!layerInfo)
return -ENOMEM;
if (copy_from_user(layerInfo, (void __user *)arg,
layerInfo_size)) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
kfree(layerInfo);
return -EFAULT;
}
memset((void *)&session_input, 0, sizeof(session_input));
for (i = 0; i < VIDEO_LAYER_COUNT; ++i) {
if (layerInfo[i].layer_id >= TOTAL_OVL_LAYER_NUM) {
DISPWARN(
"MTKFB_SET_VIDEO_LAYERS, layer_id invalid=%d\n",
layerInfo[i].layer_id);
continue;
}
layer_num = session_input.config_layer_num;
input = &session_input.config[layer_num];
session_input.config_layer_num++;
_convert_fb_layer_to_disp_input(&layerInfo[i], input);
}
session_input.setter = SESSION_USER_PANDISP;
primary_display_config_input_multiple(&session_input);
primary_display_trigger(1, NULL, 0);
kfree(layerInfo);
return r;
}
case MTKFB_TRIG_OVERLAY_OUT:
{
DISPMSG("%s():MTKFB_TRIG_OVERLAY_OUT\n", __func__);
primary_display_trigger(1, NULL, 0);
return 0;
}
case MTKFB_META_RESTORE_SCREEN:
{
struct fb_var_screeninfo var;
if (copy_from_user(&var, argp, sizeof(var)))
return -EFAULT;
/* invalidate params from userspace */
if (var.xres > MTK_FB_XRES ||
var.yres > MTK_FB_YRES ||
var.xres_virtual > MTK_FB_XRESV ||
var.yres_virtual > MTK_FB_YRESV ||
var.xoffset > MTK_FB_XRES ||
var.yoffset > MTK_FB_YRESV * (MTK_FB_PAGES - 1))
return -EFAULT;
info->var.yoffset = var.yoffset;
/* check var.yoffset passed by user space */
if (info->var.yres + info->var.yoffset > info->var.yres_virtual)
info->var.yoffset =
info->var.yres_virtual - info->var.yres;
init_framebuffer(info);
return mtkfb_pan_display_impl(&var, info);
}
case MTKFB_GET_DEFAULT_UPDATESPEED:
{
unsigned int speed = 0;
MTKFB_LOG("[MTKFB] get default update speed\n");
DISPMSG("[MTKFB EM]MTKFB_GET_DEFAULT_UPDATESPEED is %d\n",
speed);
return copy_to_user(argp, &speed,
sizeof(speed)) ? -EFAULT : 0;
}
case MTKFB_GET_CURR_UPDATESPEED:
{
unsigned int speed = 0;
MTKFB_LOG("[MTKFB] get current update speed\n");
DISPMSG("[MTKFB EM]MTKFB_GET_CURR_UPDATESPEED is %d\n",
speed);
return copy_to_user(argp, &speed,
sizeof(speed)) ? -EFAULT : 0;
}
case MTKFB_CHANGE_UPDATESPEED:
{
unsigned int speed = 0;
MTKFB_LOG("[MTKFB] change update speed\n");
if (copy_from_user(&speed, (void __user *)arg, sizeof(speed))) {
MTKFB_LOG("[FB]: copy_from_user failed! line:%d\n",
__LINE__);
r = -EFAULT;
} else {
DISPMSG("[MTKFB EM]MTKFB_CHANGE_UPDATESPEED is %d\n",
speed);
}
return r;
}
case MTKFB_AEE_LAYER_EXIST:
{
int dal_en = is_DAL_Enabled();
return copy_to_user(argp, &dal_en,
sizeof(dal_en)) ? -EFAULT : 0;
}
case MTKFB_LOCK_FRONT_BUFFER:
return 0;
case MTKFB_UNLOCK_FRONT_BUFFER:
return 0;
case MTKFB_FACTORY_AUTO_TEST:
{
unsigned int result = 0;
DISPMSG("factory mode: lcm auto test\n");
result = mtkfb_fm_auto_test();
return copy_to_user(argp, &result,
sizeof(result)) ? -EFAULT : 0;
}
case MTKFB_META_SHOW_BOOTLOGO:
{
int i, layer_num;
struct mtkfb_device *fbdev =
(struct mtkfb_device *)mtkfb_fbi->par;
struct disp_input_config *input;
DISPMSG("MTKFB_META_SHOW_BOOTLOGO\n");
memset((void *)&session_input, 0, sizeof(session_input));
for (i = 0; i < 2; i++) {
layer_num = session_input.config_layer_num;
input = &session_input.config[layer_num];
session_input.config_layer_num++;
input->layer_enable = 1;
input->src_fmt = DISP_FORMAT_RGBA8888;
input->src_offset_x = 0;
input->src_offset_y = 0;
input->src_width = MTK_FB_XRES;
input->src_height = MTK_FB_YRES;
input->tgt_offset_x = 0;
input->tgt_offset_y = 0;
input->tgt_width = MTK_FB_XRES;
input->tgt_height = MTK_FB_YRES;
input->src_pitch =
ALIGN_TO(MTK_FB_XRES, MTK_FB_ALIGNMENT) * 4;
input->alpha_enable = 1;
input->alpha = 0xff;
input->next_buff_idx = -1;
}
input = &session_input.config[0];
input->layer_id = 0;
input->src_phy_addr =
(void *)(unsigned long)(fbdev->fb_pa_base);
input = &session_input.config[1];
input->layer_id = 3;
input->src_phy_addr =
(void *)(unsigned long)(fbdev->fb_pa_base +
(ALIGN_TO(MTK_FB_XRES, MTK_FB_ALIGNMENT) *
ALIGN_TO(MTK_FB_YRES, MTK_FB_ALIGNMENT) * 4));
session_input.setter = SESSION_USER_PANDISP;
primary_display_config_input_multiple(&session_input);
primary_display_trigger(1, NULL, 0);
return 0;
}
default:
DISPWARN(
"%s Not support, info=0x%p, cmd=0x%08x, arg=0x%08lx\n",
__func__, info, (unsigned int)cmd, arg);
return -EINVAL;
}
return r;
}
#ifdef CONFIG_COMPAT
static void compat_convert(struct compat_fb_overlay_layer *compat_info,
struct fb_overlay_layer *info)
{
info->layer_id = compat_info->layer_id;
info->layer_enable = compat_info->layer_enable;
info->src_base_addr =
(void *)((unsigned long)(compat_info->src_base_addr));
info->src_phy_addr =
(void *)((unsigned long)(compat_info->src_phy_addr));
info->src_direct_link = compat_info->src_direct_link;
info->src_fmt = compat_info->src_fmt;
info->src_use_color_key = compat_info->src_use_color_key;
info->src_color_key = compat_info->src_color_key;
info->src_pitch = compat_info->src_pitch;
info->src_offset_x = compat_info->src_offset_x;
info->src_offset_y = compat_info->src_offset_y;
info->src_width = compat_info->src_width;
info->src_height = compat_info->src_height;
info->tgt_offset_x = compat_info->tgt_offset_x;
info->tgt_offset_y = compat_info->tgt_offset_y;
info->tgt_width = compat_info->tgt_width;
info->tgt_height = compat_info->tgt_height;
info->layer_rotation = compat_info->layer_rotation;
info->layer_type = compat_info->layer_type;
info->video_rotation = compat_info->video_rotation;
info->isTdshp = compat_info->isTdshp;
info->next_buff_idx = compat_info->next_buff_idx;
info->identity = compat_info->identity;
info->connected_type = compat_info->connected_type;
info->security = compat_info->security;
info->alpha_enable = compat_info->alpha_enable;
info->alpha = compat_info->alpha;
info->fence_fd = compat_info->fence_fd;
info->ion_fd = compat_info->ion_fd;
}
static int mtkfb_compat_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg)
{
struct fb_overlay_layer layerInfo;
long ret = 0;
DISPDBG(
"[FB Driver] %s, cmd=0x%08x, cmd nr=0x%08x,cmd size=0x%08x\n",
__func__, cmd, (unsigned int)_IOC_NR(cmd),
(unsigned int)_IOC_SIZE(cmd));
switch (cmd) {
case COMPAT_MTKFB_GET_FRAMEBUFFER_MVA:
{
compat_uint_t __user *data32;
__u32 data;
data32 = compat_ptr(arg);
data = (__u32) fb_pa;
if (put_user(data, data32)) {
pr_info("MTKFB_FRAMEBUFFER_MVA failed\n");
ret = -EFAULT;
}
DISPDBG("MTKFB_FRAMEBUFFER_MVA success 0x%lx\n", fb_pa);
return ret;
}
case COMPAT_MTKFB_GET_DISPLAY_IF_INFORMATION:
{
compat_uint_t __user *data32;
compat_uint_t displayid = 0;
data32 = compat_ptr(arg);
if (get_user(displayid, data32)) {
pr_info("COMPAT_MTKFB_GET_DISPLAY_IF_INFORMATION failed\n");
return -EFAULT;
}
if (displayid >= MTKFB_MAX_DISPLAY_COUNT) {
pr_info("[FB]: invalid display id:%d\n", displayid);
return -EFAULT;
}
if (displayid == 0) {
dispif_info[displayid].displayWidth =
primary_display_get_width();
dispif_info[displayid].displayHeight =
primary_display_get_height();
dispif_info[displayid].lcmOriginalWidth =
primary_display_get_original_width();
dispif_info[displayid].lcmOriginalHeight =
primary_display_get_original_height();
dispif_info[displayid].displayMode =
primary_display_is_video_mode() ? 0 : 1;
} else {
DISPWARN(
"information for displayid: %d is not available now\n",
displayid);
}
if (copy_to_user((void __user *)arg, &(dispif_info[displayid]),
sizeof(struct compat_mtk_dispif_info))) {
pr_info("[FB]: copy_to_user failed! line:%d\n",
__LINE__);
return -EFAULT;
}
break;
}
case COMPAT_MTKFB_POWEROFF:
{
ret = mtkfb_ioctl(info, MTKFB_POWEROFF, arg);
break;
}
case COMPAT_MTKFB_POWERON:
{
ret = mtkfb_ioctl(info, MTKFB_POWERON, arg);
break;
}
case COMPAT_MTKFB_GET_POWERSTATE:
{
compat_uint_t __user *data32;
int power_state = 0;
data32 = compat_ptr(arg);
if (primary_display_is_sleepd())
power_state = 0;
else
power_state = 1;
if (put_user(power_state, data32)) {
pr_info("MTKFB_GET_POWERSTATE failed\n");
ret = -EFAULT;
}
DISPDBG("MTKFB_GET_POWERSTATE success %d\n", power_state);
break;
}
case COMPAT_MTKFB_CAPTURE_FRAMEBUFFER:
{
compat_ulong_t __user *data32;
unsigned long *pbuf;
compat_ulong_t l;
data32 = compat_ptr(arg);
pbuf = compat_alloc_user_space(sizeof(unsigned long));
ret = get_user(l, data32);
ret |= put_user(l, pbuf);
ret = mtkfb_ioctl(info, MTKFB_CAPTURE_FRAMEBUFFER,
(unsigned long)pbuf);
break;
}
case COMPAT_MTKFB_TRIG_OVERLAY_OUT:
{
arg = (unsigned long)compat_ptr(arg);
ret = mtkfb_ioctl(info, MTKFB_TRIG_OVERLAY_OUT, arg);
break;
}
case COMPAT_MTKFB_META_RESTORE_SCREEN:
{
arg = (unsigned long)compat_ptr(arg);
ret = mtkfb_ioctl(info, MTKFB_META_RESTORE_SCREEN, arg);
break;
}
case COMPAT_MTKFB_SET_OVERLAY_LAYER:
{
struct compat_fb_overlay_layer *compat_layerInfo;
compat_layerInfo = kmalloc(sizeof(*compat_layerInfo),
GFP_KERNEL);
if (!compat_layerInfo)
return -ENOMEM;
MTKFB_LOG("%s():MTKFB_SET_OVERLAY_LAYER\n",
__func__);
arg = (unsigned long)compat_ptr(arg);
if (copy_from_user(compat_layerInfo, (void __user *)arg,
sizeof(*compat_layerInfo))) {
MTKFB_LOG(
"[FB Driver]: copy_from_user failed! line:%d\n",
__LINE__);
ret = -EFAULT;
} else {
struct disp_input_config *input;
int layer_num;
compat_convert(compat_layerInfo, &layerInfo);
/* in early suspend mode ,will not update buffer index,
* info SF by return value
*/
if (primary_display_is_sleepd()) {
DISPWARN(
"[FB Driver] set overlay in early suspend ,skip!\n");
kfree(compat_layerInfo);
return MTKFB_ERROR_IS_EARLY_SUSPEND;
}
memset((void *)&session_input, 0,
sizeof(session_input));
layer_num = session_input.config_layer_num;
input = &session_input.config[layer_num];
session_input.config_layer_num++;
session_input.setter = SESSION_USER_PANDISP;
_convert_fb_layer_to_disp_input(&layerInfo, input);
primary_display_config_input_multiple(&session_input);
/* primary_display_trigger(1, NULL, 0); */
}
kfree(compat_layerInfo);
break;
}
case COMPAT_MTKFB_SET_VIDEO_LAYERS:
{
int32_t i;
struct disp_input_config *input;
struct compat_fb_overlay_layer *compat_layerInfo;
int layer_num;
int l_info_size = sizeof(struct compat_fb_overlay_layer) *
VIDEO_LAYER_COUNT;
compat_layerInfo = kmalloc(l_info_size, GFP_KERNEL);
if (!compat_layerInfo)
return -ENOMEM;
MTKFB_LOG("%s():MTKFB_SET_VIDEO_LAYERS\n",
__func__);
if (copy_from_user(compat_layerInfo, (void __user *)arg,
l_info_size)) {
MTKFB_LOG(
"[FB Driver]: copy_from_user failed! line:%d\n",
__LINE__);
kfree(compat_layerInfo);
return -EFAULT;
}
memset((void *)&session_input, 0, sizeof(session_input));
for (i = 0; i < VIDEO_LAYER_COUNT; ++i) {
compat_convert(&compat_layerInfo[i], &layerInfo);
layer_num = session_input.config_layer_num;
input = &session_input.config[layer_num];
session_input.config_layer_num++;
_convert_fb_layer_to_disp_input(&layerInfo, input);
}
session_input.setter = SESSION_USER_PANDISP;
primary_display_config_input_multiple(&session_input);
kfree(compat_layerInfo);
break;
}
case COMPAT_MTKFB_AEE_LAYER_EXIST:
{
int dal_en = is_DAL_Enabled();
compat_ulong_t __user *data32;
data32 = compat_ptr(arg);
if (put_user(dal_en, data32)) {
pr_info("MTKFB_GET_POWERSTATE failed\n");
ret = -EFAULT;
}
break;
}
case COMPAT_MTKFB_FACTORY_AUTO_TEST:
{
unsigned long result = 0;
compat_ulong_t __user *data32;
DISPMSG("factory mode: lcm auto test\n");
result = mtkfb_fm_auto_test();
data32 = compat_ptr(arg);
if (put_user(result, data32)) {
pr_info("MTKFB_GET_POWERSTATE failed\n");
ret = -EFAULT;
}
break;
}
case COMPAT_MTKFB_META_SHOW_BOOTLOGO:
{
arg = (unsigned long)compat_ptr(arg);
ret = mtkfb_ioctl(info, MTKFB_META_SHOW_BOOTLOGO, arg);
break;
}
default:
/* NOTHING DIFFERENCE with standard ioctl calling */
arg = (unsigned long)compat_ptr(arg);
ret = mtkfb_ioctl(info, cmd, arg);
break;
}
return ret;
}
#endif
static int mtkfb_pan_display_proxy(struct fb_var_screeninfo *var,
struct fb_info *info)
{
#ifdef CONFIG_MTPROF_APPLAUNCH /* eng enable, user disable */
LOG_PRINT(ANDROID_LOG_INFO, "AppLaunch", "mtkfb_pan_display_proxy.\n");
#endif
return mtkfb_pan_display_impl(var, info);
}
/* Callback table for the frame buffer framework. Some of these pointers
* will be changed according to the current setting of fb_info->accel_flags.
*/
static struct fb_ops mtkfb_ops = {
.owner = THIS_MODULE,
.fb_open = mtkfb_open,
.fb_release = mtkfb_release,
.fb_setcolreg = mtkfb_setcolreg,
.fb_pan_display = mtkfb_pan_display_proxy,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_cursor = mtkfb_soft_cursor,
.fb_check_var = mtkfb_check_var,
.fb_set_par = mtkfb_set_par,
.fb_ioctl = mtkfb_ioctl,
#ifdef CONFIG_COMPAT
.fb_compat_ioctl = mtkfb_compat_ioctl,
#endif
#if defined(CONFIG_PM_AUTOSLEEP)
.fb_blank = mtkfb_blank,
#endif
};
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
/* external_display fb */
static struct fb_ops mtkfb1_ops = {
.owner = THIS_MODULE,
.fb_open = NULL,
.fb_release = NULL,
.fb_setcolreg = NULL,
.fb_pan_display = NULL,
.fb_fillrect = NULL,
.fb_copyarea = NULL,
.fb_imageblit = NULL,
.fb_cursor = NULL,
.fb_check_var = NULL,
.fb_set_par = NULL,
.fb_ioctl = NULL,
#ifdef CONFIG_COMPAT
.fb_compat_ioctl = NULL,
#endif
#if defined(CONFIG_PM_AUTOSLEEP)
.fb_blank = mtkfb1_blank,
#endif
};
#endif
static int mtkfb_register_sysfs(struct mtkfb_device *fbdev)
{
NOT_REFERENCED(fbdev);
return 0;
}
static void mtkfb_unregister_sysfs(struct mtkfb_device *fbdev)
{
NOT_REFERENCED(fbdev);
}
/* Initialize system fb_info object and set the default video mode.
* The frame buffer memory already allocated by lcddma_init
*/
static int mtkfb_fbinfo_init(struct fb_info *info)
{
struct mtkfb_device *fbdev = (struct mtkfb_device *)info->par;
struct fb_var_screeninfo var;
int r = 0;
DISPFUNC();
ASSERT(fbdev->fb_va_base);
info->fbops = &mtkfb_ops;
info->flags = FBINFO_FLAG_DEFAULT;
info->screen_base = (char *)fbdev->fb_va_base;
info->screen_size = fbdev->fb_size_in_byte;
info->pseudo_palette = fbdev->pseudo_palette;
r = fb_alloc_cmap(&info->cmap, 32, 0);
if (r != 0)
DISPERR("unable to allocate color map memory\n");
/* setup the initial video mode (RGB565) */
memset(&var, 0, sizeof(var));
var.xres = MTK_FB_XRES;
var.yres = MTK_FB_YRES;
var.xres_virtual = MTK_FB_XRESV;
var.yres_virtual = MTK_FB_YRESV;
DISPMSG(
"%s var.xres=%d,var.yres=%d,var.xres_virtual=%d,var.yres_virtual=%d\n",
__func__, var.xres, var.yres, var.xres_virtual,
var.yres_virtual);
/* use 32 bit framebuffer as default */
var.bits_per_pixel = 32;
var.transp.offset = 24;
var.red.length = 8;
#if 0
var.red.offset = 16;
var.red.length = 8;
var.green.offset = 8;
var.green.length = 8;
var.blue.offset = 0;
var.blue.length = 8;
#else
var.red.offset = 0;
var.red.length = 8;
var.green.offset = 8;
var.green.length = 8;
var.blue.offset = 16;
var.blue.length = 8;
#endif
var.width = DISP_GetActiveWidth();
var.height = DISP_GetActiveHeight();
var.activate = FB_ACTIVATE_NOW;
r = mtkfb_check_var(&var, info);
if (r != 0)
DISPERR("failed to mtkfb_check_var\n");
info->var = var;
r = mtkfb_set_par(info);
if (r != 0)
DISPERR("failed to mtkfb_set_par\n");
MSG_FUNC_LEAVE();
return r;
}
/* Release the fb_info object */
static void mtkfb_fbinfo_cleanup(struct mtkfb_device *fbdev)
{
MSG_FUNC_ENTER();
fb_dealloc_cmap(&fbdev->fb_info->cmap);
MSG_FUNC_LEAVE();
}
/* Init frame buffer content as 3 R/G/B color bars for debug */
static int init_framebuffer(struct fb_info *info)
{
void *buffer;
int size;
struct fb_var_screeninfo *var = &info->var;
buffer = info->screen_base + var->yoffset * info->fix.line_length;
size = var->xres_virtual * var->yres * var->bits_per_pixel / 8;
memset_io(buffer, 0, size);
return 0;
}
/* Free driver resources. Can be called to rollback an aborted initialization
* sequence.
*/
static void mtkfb_free_resources(struct mtkfb_device *fbdev, int state)
{
int r = 0;
switch (state) {
case MTKFB_ACTIVE:
r = unregister_framebuffer(fbdev->fb_info);
ASSERT(r == 0);
/* lint -fallthrough */
case 5:
mtkfb_unregister_sysfs(fbdev);
/* lint -fallthrough */
case 4:
mtkfb_fbinfo_cleanup(fbdev);
/* lint -fallthrough */
case 3:
/* DISP_CHECK_RET(DISP_Deinit()); */
/* lint -fallthrough */
case 2:
#ifndef CONFIG_FPGA_EARLY_PORTING
dma_free_coherent(0, fbdev->fb_size_in_byte, fbdev->fb_va_base,
fbdev->fb_pa_base);
#endif
/* lint -fallthrough */
case 1:
dev_set_drvdata(fbdev->dev, NULL);
framebuffer_release(fbdev->fb_info);
/* lint -fallthrough */
case 0:
/* nothing to free */
break;
default:
DISPERR("free resources fail, state=%d\n", state);
}
}
void disp_get_fb_address(unsigned long *fbVirAddr, unsigned long *fbPhysAddr)
{
struct mtkfb_device *fbdev = (struct mtkfb_device *)mtkfb_fbi->par;
int fb_size;
fb_size = mtkfb_fbi->var.yoffset * mtkfb_fbi->fix.line_length;
*fbVirAddr = (unsigned long)fbdev->fb_va_base + fb_size;
*fbPhysAddr = (unsigned long)fbdev->fb_pa_base + fb_size;
DISPCHECK(
"[pam_disp_test] fbdev->fb_pa_base = 0x%lx, fbdev->fb_va_base = 0x%p\n",
(unsigned long)fbdev->fb_pa_base, fbdev->fb_va_base);
}
static void _mtkfb_draw_block(unsigned long addr, unsigned int x,
unsigned int y, unsigned int w, unsigned int h, unsigned int color)
{
int i = 0;
int j = 0;
unsigned long start_addr = addr + MTK_FB_XRESV * 4 * y + x * 4;
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++)
mt_reg_sync_writel(color,
(start_addr + i * 4 + j * MTK_FB_XRESV * 4));
}
}
char *mtkfb_find_lcm_driver(void)
{
_parse_tag_videolfb();
DISPMSG("%s, %s\n", __func__, mtkfb_lcm_name);
return mtkfb_lcm_name;
}
int _mtkfb_internal_test(unsigned long va, unsigned int w, unsigned int h)
{
/* this is for debug, used in bring up day */
unsigned int i = 0;
unsigned int color = 0;
int _block_size = 120;
for (i = 0; i < w * h / _block_size / _block_size; i++) {
color = (i & 0x1) * 0xff;
color += ((i&0x2)>>1)*0xff00;
color += ((i&0x4)>>2)*0xff0000;
color += 0xff000000U;
/*color = 0xff000000U;*/
_mtkfb_draw_block(va,
i % (w / _block_size) * _block_size,
i / (w / _block_size) * _block_size,
_block_size, _block_size, color);
}
primary_display_trigger(1, NULL, 0);
DISPMSG("%s end\n", __func__);
return 0;
}
#ifdef CONFIG_OF
struct tag_video_lfb {
u64 fb_base;
u32 islcmfound;
u32 fps;
u32 vram;
char lcmname[1]; /* this is the minimum size */
};
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
struct tag_ext_videolfb {
u64 ext_fb_base;
u32 ext_islcmfound;
u32 ext_fps;
u32 ext_vram;
char ext_lcmname[1]; /* this is the minimum size */
};
#endif
unsigned int islcmconnected;
unsigned int is_lcm_inited;
unsigned int vramsize;
phys_addr_t fb_base;
static int is_videofb_parse_done;
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
unsigned int ext_islcmconnected;
unsigned int ext_is_lcm_inited;
unsigned int ext_vramsize;
phys_addr_t ext_fb_base;
#endif
static int __parse_tag_videolfb_extra(struct device_node *node)
{
void *prop;
unsigned long size = 0;
u32 fb_base_h, fb_base_l;
prop = (void *)of_get_property(node,
"atag,videolfb-fb_base_h", NULL);
if (!prop)
return -1;
fb_base_h = of_read_number(prop, 1);
prop = (void *)of_get_property(node,
"atag,videolfb-fb_base_l", NULL);
if (!prop)
return -1;
fb_base_l = of_read_number(prop, 1);
fb_base = ((u64) fb_base_h << 32) | (u64) fb_base_l;
prop = (void *)of_get_property(node,
"atag,videolfb-islcmfound", NULL);
if (!prop)
return -1;
islcmconnected = of_read_number(prop, 1);
prop = (void *)of_get_property(node,
"atag,videolfb-islcm_inited", NULL);
if (!prop)
is_lcm_inited = 1;
else
is_lcm_inited = of_read_number(prop, 1);
prop = (void *)of_get_property(node,
"atag,videolfb-fps", NULL);
if (!prop)
return -1;
lcd_fps = of_read_number(prop, 1);
if (lcd_fps == 0)
lcd_fps = 6000;
prop = (void *)of_get_property(node,
"atag,videolfb-vramSize", NULL);
if (!prop)
return -1;
vramsize = of_read_number(prop, 1);
prop = (void *)of_get_property(node,
"atag,videolfb-fb_base_l", NULL);
if (!prop)
return -1;
fb_base_l = of_read_number(prop, 1);
prop = (void *)of_get_property(node,
"atag,videolfb-lcmname", (int *)&size);
if (!prop)
return -1;
if (size >= sizeof(mtkfb_lcm_name)) {
DISPCHECK("%s: error to get lcmname size=%ld\n",
__func__, size);
return -1;
}
memset((void *)mtkfb_lcm_name, 0, sizeof(mtkfb_lcm_name));
strncpy((char *)mtkfb_lcm_name, prop, sizeof(mtkfb_lcm_name));
mtkfb_lcm_name[size] = '\0';
DISPMSG("%s done\n", __func__);
return 0;
}
static int __parse_tag_videolfb(struct device_node *node)
{
struct tag_video_lfb *videolfb_tag = NULL;
unsigned long size = 0;
videolfb_tag = (struct tag_video_lfb *)of_get_property(node,
"atag,videolfb", (int *)&size);
if (videolfb_tag) {
memset((void *)mtkfb_lcm_name, 0, sizeof(mtkfb_lcm_name));
strncpy((char *)mtkfb_lcm_name, videolfb_tag->lcmname,
sizeof(mtkfb_lcm_name));
mtkfb_lcm_name[strlen(videolfb_tag->lcmname)] = '\0';
lcd_fps = videolfb_tag->fps;
if (lcd_fps == 0)
lcd_fps = 6000;
islcmconnected = videolfb_tag->islcmfound;
vramsize = videolfb_tag->vram;
fb_base = videolfb_tag->fb_base;
is_lcm_inited = 1;
return 0;
}
DISPCHECK("[DT][videolfb] videolfb_tag not found\n");
return -1;
}
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
int __init __parse_tag_ext_videolfb(unsigned long node)
{
struct tag_ext_videolfb *tag_ext_videolfb = NULL;
unsigned long size = 0;
char *lcm_name;
tag_ext_videolfb =
(struct tag_ext_videolfb *)of_get_flat_dt_prop(
node, "atag,ext_videolfb", (int *)&size);
if (tag_ext_videolfb) {
lcm_name = tag_ext_videolfb->ext_lcmname;
memset((void *)ext_mtkfb_lcm_name, 0,
sizeof(ext_mtkfb_lcm_name));
strcpy((char *)ext_mtkfb_lcm_name, lcm_name);
ext_mtkfb_lcm_name[strlen(lcm_name)] = '\0';
ext_lcd_fps = tag_ext_videolfb->ext_fps;
if (ext_lcd_fps == 0)
ext_lcd_fps = 6000;
ext_islcmconnected = tag_ext_videolfb->ext_islcmfound;
ext_vramsize = tag_ext_videolfb->ext_vram;
ext_fb_base = tag_ext_videolfb->ext_fb_base;
ext_is_lcm_inited = 1;
return 0;
}
DISPCHECK("[DT][ext_videolfb] tag_ext_videolfb not found\n");
return -1;
}
#endif
static int _parse_tag_videolfb(void)
{
int ret;
struct device_node *chosen_node;
DISPCHECK("[DT][videolfb]isvideofb_parse_done = %d\n",
is_videofb_parse_done);
if (is_videofb_parse_done)
return 0;
chosen_node = of_find_node_by_path("/chosen");
if (!chosen_node)
chosen_node = of_find_node_by_path("/chosen@0");
if (chosen_node) {
ret = __parse_tag_videolfb(chosen_node);
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
ret = __parse_tag_ext_videolfb(chosen_node);
#endif
if (!ret)
goto found;
ret = __parse_tag_videolfb_extra(chosen_node);
if (!ret)
goto found;
} else {
DISPCHECK("[DT][videolfb] of_chosen not found\n");
}
return -1;
found:
is_videofb_parse_done = 1;
DISPCHECK("[DT][videolfb] islcmfound = %d\n",
islcmconnected);
DISPCHECK("[DT][videolfb] is_lcm_inited = %d\n",
is_lcm_inited);
DISPCHECK("[DT][videolfb] fps = %d\n",
lcd_fps);
DISPCHECK("[DT][videolfb] fb_base = 0x%lx\n",
(unsigned long)fb_base);
DISPCHECK("[DT][videolfb] vram = 0x%x (%d)\n",
vramsize, vramsize);
DISPCHECK("[DT][videolfb] lcmname = %s\n",
mtkfb_lcm_name);
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
DISPCHECK("[DT][videolfb] ext_islcmfound = %d\n",
ext_islcmconnected);
DISPCHECK("[DT][videolfb] ext_is_lcm_inited = %d\n",
ext_is_lcm_inited);
DISPCHECK("[DT][videolfb] ext_fps = %d\n",
ext_lcd_fps);
DISPCHECK("[DT][videolfb] ext_fb_base = 0x%lx\n",
(unsigned long)ext_fb_base);
DISPCHECK("[DT][videolfb] ext_vram = 0x%x (%d)\n",
ext_vramsize, ext_vramsize);
DISPCHECK("[DT][videolfb] ext_lcmname = %s\n",
ext_mtkfb_lcm_name);
#endif
return 0;
}
phys_addr_t mtkfb_get_fb_base(void)
{
_parse_tag_videolfb();
return fb_base;
}
EXPORT_SYMBOL(mtkfb_get_fb_base);
size_t mtkfb_get_fb_size(void)
{
_parse_tag_videolfb();
return vramsize;
}
EXPORT_SYMBOL(mtkfb_get_fb_size);
#endif
/* used when early porting, test pan display*/
int pan_display_test(int frame_num, int bpp)
{
int i, j;
int Bpp = bpp / 8;
unsigned char *fb_va;
unsigned long fb_pa;
unsigned int fb_size;
int w, h, fb_h;
int yoffset_max;
int yoffset;
mtkfb_fbi->var.yoffset = 0;
disp_get_fb_address((unsigned long *)&fb_va, &fb_pa);
fb_size = mtkfb_fbi->fix.smem_len;
w = mtkfb_fbi->var.xres;
h = mtkfb_fbi->var.yres;
fb_h = fb_size / (ALIGN_TO(w, MTK_FB_ALIGNMENT) * Bpp) - 10;
DISPMSG("%s: frame_num=%d,bpp=%d, w=%d,h=%d,fb_h=%d\n",
__func__, frame_num, bpp, w, h, fb_h);
for (i = 0; i < fb_h; i++)
for (j = 0; j < w; j++) {
int x = (i * ALIGN_TO(w, MTK_FB_ALIGNMENT) + j) * Bpp;
fb_va[x++] = (i + j) % 256;
fb_va[x++] = (i + j) % 256;
fb_va[x++] = (i + j) % 256;
if (Bpp == 4)
fb_va[x++] = 255;
}
mtkfb_fbi->var.bits_per_pixel = bpp;
yoffset_max = fb_h - h;
yoffset = 0;
for (i = 0; i < frame_num; i++, yoffset += 10) {
if (yoffset >= yoffset_max)
yoffset = 0;
mtkfb_fbi->var.xoffset = 0;
mtkfb_fbi->var.yoffset = yoffset;
mtkfb_pan_display_impl(&mtkfb_fbi->var, mtkfb_fbi);
}
return 0;
}
/*#define FPGA_DEBUG_PAN*/
#ifdef FPGA_DEBUG_PAN
static struct task_struct *test_task;
static int update_test_kthread(void *data)
{
unsigned int i = 0, j = 0;
unsigned long fb_va;
unsigned long fb_pa;
unsigned int *fb_start;
unsigned int fbsize =
primary_display_get_height() * primary_display_get_width();
mtkfb_fbi->var.yoffset = 0;
disp_get_fb_address(&fb_va, &fb_pa);
for (;;) {
if (kthread_should_stop())
break;
msleep(1000); /* 2s */
DISPMSG("update test thread work,offset = %d\n", i);
mtkfb_fbi->var.yoffset = 0;
disp_get_fb_address(&fb_va, &fb_pa);
fb_start = (unsigned int *)fb_va;
for (j = 0; j < fbsize; j++) {
*fb_start = (0x55) << ((i % 4) * 8);
fb_start++;
}
mtkfb_pan_display_impl(&mtkfb_fbi->var, mtkfb_fbi);
i++;
}
DISPMSG("exit %s()\n", __func__);
return 0;
}
#endif
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
static struct fb_info *allocate_fb_by_index(struct device *dev)
{
struct mtkfb_device *fbdev = NULL;
struct fb_info *fb_dev = NULL;
fb_dev = framebuffer_alloc(sizeof(struct mtkfb_device), dev);
if (!fb_dev) {
DISPERR("unable to allocate memory for device info\n");
return NULL;
}
fbdev = (struct mtkfb_device *)fb_dev->par;
fbdev->fb_info = fb_dev;
fbdev->dev = dev;
/*dev_set_drvdata(dev, fbdev);*/
fb_dev->fbops = &mtkfb1_ops;
fb_dev->flags = FBINFO_FLAG_DEFAULT;
return fb_dev;
}
#endif
static int mtkfb_probe(struct platform_device *pdev)
{
struct mtkfb_device *fbdev = NULL;
struct fb_info *fbi;
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
/* external display fb */
struct fb_info *fb1;
#endif
int init_state;
int r = 0;
#ifdef CONFIG_MTK_IOMMU_V3
struct ion_client *ion_display_client = NULL;
struct ion_handle *ion_display_handle = NULL;
size_t temp_va = 0;
#endif
/* struct platform_device *pdev; */
long dts_gpio_state = 0;
DISPMSG("%s name [%s] = [%s][%p]\n", __func__,
pdev->name, pdev->dev.init_name, (void *)&pdev->dev);
if (disp_helper_get_stage() == DISP_HELPER_STAGE_NORMAL) {
if (!smi_mm_first_get()) {
DISPMSG("SMI not start probe\n");
return -EPROBE_DEFER;
}
}
_parse_tag_videolfb();
init_state = 0;
/* pdev = to_platform_device(dev); */
/* repo call DTS gpio module, if not necessary, invoke nothing */
dts_gpio_state = disp_dts_gpio_init_repo(pdev);
if (dts_gpio_state != 0)
DISPMSG("retrieve GPIO DTS failed.");
fbi = framebuffer_alloc(sizeof(struct mtkfb_device), &(pdev->dev));
if (!fbi) {
DISPERR("unable to allocate memory for device info\n");
r = -ENOMEM;
goto cleanup;
}
mtkfb_fbi = fbi;
fbdev = (struct mtkfb_device *)fbi->par;
fbdev->fb_info = fbi;
fbdev->dev = &(pdev->dev);
dev_set_drvdata(&(pdev->dev), fbdev);
pr_notice("%s: fb_pa = %pa\n", __func__, &fb_base);
#if 0/*#ifdef CONFIG_MTK_IOMMU_V3*/
/* TODO : this section lack of ion allocate API */
temp_va = (size_t)ioremap_nocache(fb_base,
(fb_base + vramsize - fb_base));
fbdev->fb_va_base = (void *)temp_va;
ion_display_client = disp_ion_create("disp_fb0");
if (ion_display_client == NULL) {
DISPERR("%s: fail to create ion\n", __func__);
r = -1;
goto cleanup;
}
/*
* TODO: legacy ion_handle allocate API phase out,
* need develop another method allocate MVA
*/
if (r != 0) {
DISPERR("%s: fail to allocate buffer\n", __func__);
r = -1;
goto cleanup;
}
disp_ion_get_mva(ion_display_client,
ion_display_handle,
&fb_pa, 0,
DISP_M4U_PORT_DISP_OVL0);
#else
disp_hal_allocate_framebuffer(fb_base, (fb_base + vramsize - 1),
(unsigned long *)(&fbdev->fb_va_base), &fb_pa);
#endif
fbdev->fb_pa_base = fb_base;
primary_display_set_frame_buffer_address(
(unsigned long)(fbdev->fb_va_base), fb_pa, fb_base);
primary_display_init(mtkfb_find_lcm_driver(), lcd_fps, is_lcm_inited);
init_state++; /* 1 */
MTK_FB_XRES = DISP_GetScreenWidth();
MTK_FB_YRES = DISP_GetScreenHeight();
fb_xres_update = MTK_FB_XRES;
fb_yres_update = MTK_FB_YRES;
MTK_FB_BPP = DISP_GetScreenBpp();
MTK_FB_PAGES = DISP_GetPages();
DISPCHECK(
"%s, MTK_FB_XRES=%d, MTKFB_YRES=%d, MTKFB_BPP=%d, MTK_FB_PAGES=%d, MTKFB_LINE=%d, MTKFB_SIZEV=%d\n",
__func__, MTK_FB_XRES, MTK_FB_YRES, MTK_FB_BPP, MTK_FB_PAGES,
MTK_FB_LINE, MTK_FB_SIZEV);
fbdev->fb_size_in_byte = MTK_FB_SIZEV;
/* Allocate and initialize video frame buffer */
DISPCHECK(
"%s, [FB Driver] fbdev->fb_pa_base = 0x%lx, fbdev->fb_va_base = 0x%p\n",
__func__, (unsigned long)fbdev->fb_pa_base,
fbdev->fb_va_base);
if (!fbdev->fb_va_base) {
DISPERR("unable to allocate memory for frame buffer\n");
r = -ENOMEM;
goto cleanup;
}
init_state++; /* 2 */
r = mtkfb_fbinfo_init(fbi);
if (r) {
DISPERR("mtkfb_fbinfo_init fail, r = %d\n", r);
goto cleanup;
}
init_state++; /* 4 */
DISPMSG("\nmtkfb_fbinfo_init done\n");
if (disp_helper_get_stage() == DISP_HELPER_STAGE_NORMAL) {
/* dal_init should after mtkfb_fbinfo_init, otherwise layer
* 3 will show dal background color
*/
enum DAL_STATUS ret;
unsigned long fbVA = (unsigned long)(fbdev->fb_va_base);
unsigned long fbPA = fb_pa;
/* / DAL init here */
fbVA += DISP_GetFBRamSize();
fbPA += DISP_GetFBRamSize();
ret = DAL_Init(fbVA, fbPA);
DISPMSG("DAL_Init done\n");
}
if (disp_helper_get_stage() != DISP_HELPER_STAGE_NORMAL)
_mtkfb_internal_test((unsigned long)(fbdev->fb_va_base),
MTK_FB_XRES, MTK_FB_YRES);
r = mtkfb_register_sysfs(fbdev);
if (r) {
DISPERR("mtkfb_register_sysfs fail, r = %d\n", r);
goto cleanup;
}
init_state++; /* 5 */
DISPMSG("register_framebuffer start...\n");
r = register_framebuffer(fbi);
if (r != 0) {
DISPERR("register_framebuffer failed\n");
goto cleanup;
}
DISPMSG("register_framebuffer done\n");
#if defined(CONFIG_MTK_DUAL_DISPLAY_SUPPORT) && \
(CONFIG_MTK_DUAL_DISPLAY_SUPPORT == 2)
DISPDBG("%s register fb1\n", __func__);
/* register external display fb */
fb1 = allocate_fb_by_index(&pdev->dev);
register_framebuffer(fb1);
DISPMSG("register_ext_framebuffer done\n");
#endif
#ifdef FPGA_DEBUG_PAN
test_task = kthread_create(update_test_kthread,
NULL, "update_test_kthread");
wake_up_process(test_task);
#endif
// if (disp_helper_get_stage() != DISP_HELPER_STAGE_NORMAL)
// primary_display_diagnose(__func__, __LINE__);
/* this function will get fb_heap base address to ion
* for management frame buffer
*/
#ifdef CONFIG_MTK_IOMMU_V3
ion_drv_create_FB_heap(mtkfb_get_fb_base(), mtkfb_get_fb_size());
#endif
fbdev->state = MTKFB_ACTIVE;
#if 0
if (!strcmp(mtkfb_find_lcm_driver(),
"nt35521_hd_dsi_vdo_truly_rt5081_drv")) {
register_ccci_sys_call_back(MD_SYS1,
MD_DISPLAY_DYNAMIC_MIPI, mipi_clk_change);
}
#endif
MSG_FUNC_LEAVE();
pr_info("disp driver(2) %s end\n", __func__);
return 0;
cleanup:
mtkfb_free_resources(fbdev, init_state);
pr_info("disp driver(2) %s end\n", __func__);
return r;
}
/* Called when the device is being detached from the driver */
static int mtkfb_remove(struct platform_device *pdev)
{
struct mtkfb_device *fbdev = dev_get_drvdata(&pdev->dev);
enum mtkfb_state saved_state = fbdev->state;
MSG_FUNC_ENTER();
/* FIXME: wait till completion of pending events */
fbdev->state = MTKFB_DISABLED;
mtkfb_free_resources(fbdev, saved_state);
MSG_FUNC_LEAVE();
return 0;
}
/* PM suspend */
static int mtkfb_suspend(struct platform_device *pdev, pm_message_t mesg)
{
DISPFUNC();
NOT_REFERENCED(pdev);
MSG_FUNC_ENTER();
MTKFB_LOG("[FB Driver] %s: 0x%x\n", __func__, mesg.event);
ovl2mem_wait_done();
MSG_FUNC_LEAVE();
return 0;
}
/* PM resume */
static int mtkfb_resume(struct platform_device *pdev)
{
DISPFUNC();
NOT_REFERENCED(pdev);
MSG_FUNC_ENTER();
MTKFB_LOG("[FB Driver] %s\n", __func__);
MSG_FUNC_LEAVE();
return 0;
}
static void mtkfb_shutdown(struct platform_device *pdev)
{
MTKFB_LOG("[FB Driver] %s()\n", __func__);
/* mt65xx_leds_brightness_set(MT65XX_LED_TYPE_LCD, LED_OFF); */
if (!lcd_fps)
msleep(30);
else
msleep(2 * 100000 / lcd_fps); /* Delay 2 frames. */
if (primary_display_is_sleepd()) {
MTKFB_LOG("mtkfb has been power off\n");
return;
}
primary_display_set_power_mode(FB_SUSPEND);
primary_display_suspend();
MTKFB_LOG("[FB Driver] leave %s\n", __func__);
}
bool mtkfb_is_suspend(void)
{
return primary_display_is_sleepd();
}
EXPORT_SYMBOL(mtkfb_is_suspend);
int mtkfb_ipoh_restore(struct notifier_block *nb, unsigned long val, void *ign)
{
switch (val) {
case PM_HIBERNATION_PREPARE:
DISPDBG("[FB Driver] %s PM_HIBERNATION_PREPARE\n",
__func__);
return NOTIFY_DONE;
case PM_RESTORE_PREPARE:
primary_display_ipoh_restore();
DISPDBG("[FB Driver] %s PM_RESTORE_PREPARE\n",
__func__);
return NOTIFY_DONE;
case PM_POST_HIBERNATION:
DISPDBG("[FB Driver] %s PM_POST_HIBERNATION\n",
__func__);
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
int mtkfb_ipo_init(void)
{
pm_nb.notifier_call = mtkfb_ipoh_restore;
pm_nb.priority = 0;
register_pm_notifier(&pm_nb);
return 0;
}
void mtkfb_clear_lcm(void)
{
}
#ifdef CONFIG_HAS_EARLYSUSPEND
static void mtkfb_early_suspend(void)
{
int ret = 0;
if (disp_helper_get_stage() != DISP_HELPER_STAGE_NORMAL)
return;
DISPMSG("[FB Driver] enter early_suspend\n");
ret = primary_display_suspend();
if (ret < 0) {
DISPERR("primary display suspend failed\n");
return;
}
DISPMSG("[FB Driver] leave early_suspend\n");
}
static void mtkfb_late_resume(void)
{
int ret = 0;
if (disp_helper_get_stage() != DISP_HELPER_STAGE_NORMAL)
return;
DISPMSG("[FB Driver] enter late_resume\n");
ret = primary_display_resume();
if (ret) {
DISPERR("primary display resume failed\n");
return;
}
DISPMSG("[FB Driver] leave late_resume\n");
}
#endif
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_PM
/*---------------------------------------------------------------------------*/
int mtkfb_pm_suspend(struct device *device)
{
/* pr_debug("calling %s()\n", __func__); */
struct platform_device *pdev = to_platform_device(device);
if (pdev == NULL) {
disp_aee_db_print("pdev is NULL\n");
return -1;
}
return mtkfb_suspend(pdev, PMSG_SUSPEND);
}
int mtkfb_pm_resume(struct device *device)
{
/* pr_debug("calling %s()\n", __func__); */
struct platform_device *pdev = to_platform_device(device);
if (pdev == NULL) {
disp_aee_db_print("pdev is NULL\n");
return -1;
}
return mtkfb_resume(pdev);
}
int mtkfb_pm_freeze(struct device *device)
{
primary_display_esd_check_enable(0);
return 0;
}
int mtkfb_pm_restore_noirq(struct device *device)
{
/* disphal_pm_restore_noirq(device); */
DISPDBG("%s: %d\n", __func__, __LINE__);
is_ipoh_bootup = true;
#if 0
if (disp_helper_get_option(DISP_OPT_DYNAMIC_SWITCH_MMSYSCLK))
ddp_clk_prepare_enable(MM_VENCPLL);
ddp_clk_prepare_enable(DISP_MTCMOS_CLK);
ddp_clk_prepare_enable(DISP0_SMI_COMMON);
ddp_clk_prepare_enable(DISP0_SMI_LARB0);
ddp_clk_prepare_enable(DISP0_SMI_LARB4);
#else
dpmgr_path_power_on(primary_get_dpmgr_handle(), CMDQ_DISABLE);
#endif
DISPDBG("%s: %d\n", __func__, __LINE__);
return 0;
}
/*---------------------------------------------------------------------------*/
#else /*CONFIG_PM */
/*---------------------------------------------------------------------------*/
#define mtkfb_pm_suspend NULL
#define mtkfb_pm_resume NULL
#define mtkfb_pm_restore_noirq NULL
#define mtkfb_pm_freeze NULL
/*---------------------------------------------------------------------------*/
#endif /*CONFIG_PM */
/*---------------------------------------------------------------------------*/
static const struct of_device_id mtkfb_of_ids[] = {
{.compatible = "mediatek,MTKFB",},
{}
};
static const struct dev_pm_ops mtkfb_pm_ops = {
.suspend = mtkfb_pm_suspend,
.resume = mtkfb_pm_resume,
.freeze = mtkfb_pm_freeze,
.thaw = mtkfb_pm_resume,
.poweroff = mtkfb_pm_suspend,
.restore = mtkfb_pm_resume,
.restore_noirq = mtkfb_pm_restore_noirq,
};
static struct platform_driver mtkfb_driver = {
.probe = mtkfb_probe,
.remove = mtkfb_remove,
.suspend = mtkfb_suspend,
.resume = mtkfb_resume,
.shutdown = mtkfb_shutdown,
.driver = {
.name = MTKFB_DRIVER,
#ifdef CONFIG_PM
.pm = &mtkfb_pm_ops,
#endif
.bus = &platform_bus_type,
.of_match_table = mtkfb_of_ids,
},
};
#ifdef CONFIG_HAS_EARLYSUSPEND
static struct early_suspend mtkfb_early_suspend_handler = {
.level = EARLY_SUSPEND_LEVEL_DISABLE_FB,
.suspend = mtkfb_early_suspend,
.resume = mtkfb_late_resume,
};
#endif
int mtkfb_get_debug_state(char *stringbuf, int buf_len)
{
int len = 0;
struct mtkfb_device *fbdev = (struct mtkfb_device *)mtkfb_fbi->par;
unsigned long va = (unsigned long)fbdev->fb_va_base;
unsigned long mva = (unsigned long)fbdev->fb_pa_base;
unsigned long pa = fbdev->fb_pa_base;
unsigned int resv_size = vramsize;
len +=
scnprintf(stringbuf + len, buf_len - len,
"|--------------------------------------------------------------------------------------|\n");
len +=
scnprintf(stringbuf + len, buf_len - len,
"|Framebuffer VA:0x%lx, PA:0x%lx, MVA:0x%lx, Reserved Size:0x%08x|%d\n",
va, pa, mva, resv_size, resv_size);
len +=
scnprintf(stringbuf + len, buf_len - len,
"|xoffset=%d, yoffset=%d\n",
mtkfb_fbi->var.xoffset, mtkfb_fbi->var.yoffset);
len +=
scnprintf(stringbuf + len, buf_len - len,
"|framebuffer line alignment(for gpu)=%d\n",
MTK_FB_ALIGNMENT);
len +=
scnprintf(stringbuf + len, buf_len - len,
"|xres=%d, yres=%d,bpp=%d,pages=%d,linebytes=%d,total size=%d\n",
MTK_FB_XRES, MTK_FB_YRES, MTK_FB_BPP, MTK_FB_PAGES,
MTK_FB_LINE, MTK_FB_SIZEV);
/* use extern in case DAL_LOCK is hold, then can't get any debug info */
len +=
scnprintf(stringbuf + len, buf_len - len, "|AEE Layer is %s\n",
is_DAL_Enabled() ? "enabled" : "disabled");
return len;
}
/* Register both the driver and the device */
int __init mtkfb_init(void)
{
int r = 0;
MSG_FUNC_ENTER();
DISPCHECK("%sEnter\n", __func__);
if (platform_driver_register(&mtkfb_driver)) {
PRNERR("failed to register mtkfb driver\n");
r = -ENODEV;
goto exit;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
register_early_suspend(&mtkfb_early_suspend_handler);
#endif
PanelMaster_Init();
DBG_Init();
mtkfb_ipo_init();
exit:
MSG_FUNC_LEAVE();
DISPCHECK("%s LEAVE\n", __func__);
return r;
}
static void __exit mtkfb_cleanup(void)
{
MSG_FUNC_ENTER();
platform_driver_unregister(&mtkfb_driver);
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&mtkfb_early_suspend_handler);
#endif
PanelMaster_Deinit();
DBG_Deinit();
MSG_FUNC_LEAVE();
}
module_init(mtkfb_init);
module_exit(mtkfb_cleanup);
MODULE_DESCRIPTION("MEDIATEK framebuffer driver");
MODULE_AUTHOR("Xuecheng Zhang <Xuecheng.Zhang@mediatek.com>");
MODULE_LICENSE("GPL");
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