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s3cfb_ops.c
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s3cfb_ops.c
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/* linux/drivers/video/samsung/s3cfb-ops.c
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Middle layer file for Samsung Display Controller (FIMD) driver
*
* 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/poll.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/sw_sync.h>
#include <plat/regs-fb.h>
#include <plat/regs-fb-s5p.h>
#if defined(CONFIG_CMA)
#include <linux/cma.h>
#elif defined(CONFIG_S5P_MEM_BOOTMEM)
#include <plat/media.h>
#include <mach/media.h>
#endif
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#include <linux/suspend.h>
#endif
#include <mach/sec_debug.h>
#include <linux/bootmem.h>
#include "s3cfb.h"
#define NOT_DEFAULT_WINDOW 99
#define CMA_REGION_FIMD "fimd"
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
#define CMA_REGION_VIDEO "video"
#else
#define CMA_REGION_VIDEO "fimd"
#endif
#ifdef CONFIG_BUSFREQ_OPP
#include <mach/dev.h>
#endif
#ifdef CONFIG_FB_S5P_SYSMMU
#include <plat/s5p-sysmmu.h>
#endif
#define SUPPORT_LPM_PAN_DISPLAY
#if defined(CONFIG_S6D7AA0_LSL080AL02)
static unsigned int fb_busfreq_table[S3C_FB_MAX_WIN + 1] = {
100100,
160160,
400200,
400200,
400200,
400200
};
#elif defined(CONFIG_BUSFREQ_QOS_1280X800)
static unsigned int fb_busfreq_table[S3C_FB_MAX_WIN + 1] = {
100100,
100100,
267160,
267160,
267160,
267160
};
#else
static unsigned int fb_busfreq_table[S3C_FB_MAX_WIN + 1] = {
100100,
100100,
133133,
267160,
400200,
400200
};
#endif
struct s3c_platform_fb *to_fb_plat(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
return (struct s3c_platform_fb *)pdev->dev.platform_data;
}
#ifndef CONFIG_FRAMEBUFFER_CONSOLE
static unsigned int bootloaderfb;
module_param_named(bootloaderfb, bootloaderfb, uint, 0444);
MODULE_PARM_DESC(bootloaderfb, "Address of booting logo image in Bootloader");
int s3cfb_draw_logo(struct fb_info *fb)
{
#ifdef CONFIG_FB_S5P_SPLASH_SCREEN
#ifdef RGB_BOOTSCREEN
struct fb_fix_screeninfo *fix = &fb->fix;
struct fb_var_screeninfo *var = &fb->var;
#endif
#if 0
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
memcpy(fbdev->fb[pdata->default_win]->screen_base,
LOGO_RGB24, fix->line_length * var->yres);
#else
#ifdef RGB_BOOTSCREEN
u32 height = var->yres / 3;
u32 line = fix->line_length;
u32 i, j;
for (i = 0; i < height; i++) {
for (j = 0; j < var->xres; j++) {
memset(fb->screen_base + i * line + j * 4 + 0, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 1, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 2, 0xff, 1);
memset(fb->screen_base + i * line + j * 4 + 3, 0x00, 1);
}
}
for (i = height; i < height * 2; i++) {
for (j = 0; j < var->xres; j++) {
memset(fb->screen_base + i * line + j * 4 + 0, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 1, 0xff, 1);
memset(fb->screen_base + i * line + j * 4 + 2, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 3, 0x00, 1);
}
}
for (i = height * 2; i < height * 3; i++) {
for (j = 0; j < var->xres; j++) {
memset(fb->screen_base + i * line + j * 4 + 0, 0xff, 1);
memset(fb->screen_base + i * line + j * 4 + 1, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 2, 0x00, 1);
memset(fb->screen_base + i * line + j * 4 + 3, 0x00, 1);
}
}
#else /* #ifdef RGB_BOOTSCREEN */
u8 *logo_virt_buf;
if (bootloaderfb) {
logo_virt_buf = phys_to_virt(bootloaderfb);
memcpy(fb->screen_base, logo_virt_buf, fb->var.yres * fb->fix.line_length);
printk(KERN_INFO "Bootloader sent 'bootloaderfb' : %08X\n", bootloaderfb);
}
#endif /* #ifdef RGB_BOOTSCREEN */
#endif
#endif
return 0;
}
#else
int fb_is_primary_device(struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
dev_dbg(fbdev->dev, "[fb%d] win%d: checking for primary device\n", fb->node, win->id);
if (win->id == pdata->default_win)
return 1;
else
return 0;
}
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)\
|| defined(CONFIG_CPU_EXYNOS4210)
int window_on_off_status(struct s3cfb_global *fbdev)
{
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
struct s3cfb_window *win;
int i;
int ret = 0;
for (i = 0; i < pdata->nr_wins; i++) {
win = fbdev->fb[i]->par;
if (win->enabled)
ret |= (1 << i);
}
return ret;
}
#endif
#ifdef FEATURE_BUSFREQ_LOCK
void s3cfb_busfreq_lock(struct s3cfb_global *fbdev, unsigned int lock)
{
if (lock) {
if (atomic_read(&fbdev->busfreq_lock_cnt) == 0) {
exynos4_busfreq_lock(DVFS_LOCK_ID_LCD, BUS_L1);
dev_info(fbdev->dev, "[%s] Bus Freq Locked L1\n", __func__);
}
atomic_inc(&fbdev->busfreq_lock_cnt);
fbdev->busfreq_flag = true;
} else {
if (fbdev->busfreq_flag == true) {
atomic_dec(&fbdev->busfreq_lock_cnt);
fbdev->busfreq_flag = false;
if (atomic_read(&fbdev->busfreq_lock_cnt) == 0) {
/* release Freq lock back to normal */
exynos4_busfreq_lock_free(DVFS_LOCK_ID_LCD);
dev_info(fbdev->dev, "[%s] Bus Freq lock Released Normal !!\n", __func__);
}
}
}
}
#endif
int s3cfb_enable_window(struct s3cfb_global *fbdev, int id)
{
struct s3cfb_window *win = fbdev->fb[id]->par;
#ifdef FEATURE_BUSFREQ_LOCK
int enabled_win = 0;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
#ifdef CONFIG_BUSFREQ_OPP
if (CONFIG_FB_S5P_DEFAULT_WINDOW == 3 &&
id == CONFIG_FB_S5P_DEFAULT_WINDOW-1)
dev_lock(fbdev->bus_dev, fbdev->dev, 267160);
else if (id != CONFIG_FB_S5P_DEFAULT_WINDOW) {
if (id == CONFIG_FB_S5P_DEFAULT_WINDOW-1)
dev_lock(fbdev->bus_dev, fbdev->dev, 267160);
else if (id == 3)
dev_lock(fbdev->bus_dev, fbdev->dev, 267160);
else
dev_lock(fbdev->bus_dev, fbdev->dev, 133133);
}
#endif
#endif
if (!win->enabled)
atomic_inc(&fbdev->enabled_win);
#ifdef FEATURE_BUSFREQ_LOCK
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win >= 2)
s3cfb_busfreq_lock(fbdev, 1);
#endif
if (s3cfb_window_on(fbdev, id)) {
win->enabled = 0;
return -EFAULT;
} else {
win->enabled = 1;
return 0;
}
}
int s3cfb_disable_window(struct s3cfb_global *fbdev, int id)
{
struct s3cfb_window *win = fbdev->fb[id]->par;
#ifdef FEATURE_BUSFREQ_LOCK
int enabled_win = 0;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
#ifdef CONFIG_BUSFREQ_OPP
int win_status;
#endif
#endif
if (win->enabled)
atomic_dec(&fbdev->enabled_win);
if (fbdev->regs != 0 && s3cfb_window_off(fbdev, id)) {
win->enabled = 1;
return -EFAULT;
} else {
#ifdef FEATURE_BUSFREQ_LOCK
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win < 2)
s3cfb_busfreq_lock(fbdev, 0);
#endif
win->enabled = 0;
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
#ifdef CONFIG_BUSFREQ_OPP
win_status = window_on_off_status(fbdev);
if ((win_status & ~(1 << CONFIG_FB_S5P_DEFAULT_WINDOW)) == 0)
dev_unlock(fbdev->bus_dev, fbdev->dev);
#endif
#endif
return 0;
}
}
int s3cfb_update_power_state(struct s3cfb_global *fbdev, int id, int state)
{
struct s3cfb_window *win = fbdev->fb[id]->par;
win->power_state = state;
return 0;
}
int s3cfb_init_global(struct s3cfb_global *fbdev)
{
fbdev->output = OUTPUT_RGB;
fbdev->rgb_mode = MODE_RGB_P;
fbdev->wq_count = 0;
init_waitqueue_head(&fbdev->wq);
mutex_init(&fbdev->lock);
s3cfb_set_output(fbdev);
s3cfb_set_display_mode(fbdev);
s3cfb_set_polarity(fbdev);
s3cfb_set_timing(fbdev);
s3cfb_set_lcd_size(fbdev);
return 0;
}
int s3cfb_unmap_video_memory(struct s3cfb_global *fbdev, struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_CMA
struct cma_info mem_info;
int err;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
return 0;
#endif
if (fix->smem_start) {
#ifdef CONFIG_CMA
err = cma_info(&mem_info, fbdev->dev, 0);
if (ERR_PTR(err))
return -ENOMEM;
if (fix->smem_start >= mem_info.lower_bound &&
fix->smem_start <= mem_info.upper_bound)
cma_free(fix->smem_start);
#else
dma_free_coherent(fbdev->dev, fix->smem_len, fb->screen_base, fix->smem_start);
#endif
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] win%d: video memory released\n", fb->node, win->id);
}
return 0;
}
int s3cfb_map_video_memory(struct s3cfb_global *fbdev, struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_CMA
struct cma_info mem_info;
int err;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
return 0;
#endif
if (win->owner == DMA_MEM_OTHER)
return 0;
#ifdef CONFIG_CMA
err = cma_info(&mem_info, fbdev->dev, CMA_REGION_VIDEO);
if (err)
return err;
fix->smem_start = (dma_addr_t)cma_alloc
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
(fbdev->dev, "fimd_video", (size_t)PAGE_ALIGN(fix->smem_len), 0);
#else
(fbdev->dev, "fimd", (size_t)PAGE_ALIGN(fix->smem_len), 0);
#endif
if (IS_ERR_OR_NULL((char *)fix->smem_start)) {
printk(KERN_ERR "fix->smem_start allocation fail (%x)\n",
(int)fix->smem_start);
return -1;
}
fb->screen_base = NULL;
#else
fb->screen_base = dma_alloc_writecombine(fbdev->dev,
PAGE_ALIGN(fix->smem_len),
(unsigned int *)
&fix->smem_start, GFP_KERNEL);
#endif
dev_info(fbdev->dev, "[fb%d] win%d: Alloc dma: 0x%08x, "
"size: 0x%08x\n", fb->node, win->id,
(unsigned int)fix->smem_start,
fix->smem_len);
win->owner = DMA_MEM_FIMD;
return 0;
}
int s3cfb_map_default_video_memory(struct s3cfb_global *fbdev,
struct fb_info *fb, int fimd_id)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_CMA
struct cma_info mem_info;
int err;
#endif
if (win->owner == DMA_MEM_OTHER)
return 0;
#ifdef CONFIG_CMA
err = cma_info(&mem_info, fbdev->dev, CMA_REGION_FIMD);
if (err)
return err;
fix->smem_start = (dma_addr_t)cma_alloc
(fbdev->dev, "fimd", (size_t)PAGE_ALIGN(fix->smem_len), 0);
fb->screen_base = cma_get_virt(fix->smem_start, PAGE_ALIGN(fix->smem_len), 1);
#elif defined(CONFIG_S5P_MEM_BOOTMEM)
fix->smem_start = s5p_get_media_memory_bank(S5P_MDEV_FIMD, 1);
fix->smem_len = s5p_get_media_memsize_bank(S5P_MDEV_FIMD, 1);
fb->screen_base = ioremap_wc(fix->smem_start, fix->smem_len);
#else
fb->screen_base = dma_alloc_writecombine(fbdev->dev,
PAGE_ALIGN(fix->smem_len),
(unsigned int *)
&fix->smem_start, GFP_KERNEL);
#endif
if (!fb->screen_base)
return -ENOMEM;
else
dev_info(fbdev->dev, "[fb%d] win%d: dma: 0x%08x, cpu: 0x%08x, "
"size: 0x%08x\n", fb->node, win->id,
(unsigned int)fix->smem_start,
(unsigned int)fb->screen_base, fix->smem_len);
if (bootloaderfb)
memset(fb->screen_base, 0, fix->smem_len);
win->owner = DMA_MEM_FIMD;
#ifdef CONFIG_FB_S5P_SYSMMU
fbdev->sysmmu.default_fb_addr = fix->smem_start;
#endif
return 0;
}
int s3cfb_unmap_default_video_memory(struct s3cfb_global *fbdev,
struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
if (fix->smem_start) {
iounmap(fb->screen_base);
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] win%d: video memory released\n", fb->node, win->id);
}
return 0;
}
int s3cfb_set_bitfield(struct fb_var_screeninfo *var)
{
switch (var->bits_per_pixel) {
case 16:
if (var->transp.length == 1) {
var->red.offset = 10;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 5;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.offset = 15;
} else if (var->transp.length == 4) {
var->red.offset = 8;
var->red.length = 4;
var->green.offset = 4;
var->green.length = 4;
var->blue.offset = 0;
var->blue.length = 4;
var->transp.offset = 12;
} else {
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;
}
break;
case 24:
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.offset = 0;
var->transp.length = 0;
break;
case 32:
#if defined(CONFIG_FB_RGBA_ORDER)
var->red.offset = 0;
#else
var->red.offset = 16;
#endif
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
#if defined(CONFIG_FB_RGBA_ORDER)
var->blue.offset = 16;
#else
var->blue.offset = 0;
#endif
var->blue.length = 8;
var->transp.offset = 24;
var->transp.length = 8; /* added for LCD RGB32 */
break;
}
return 0;
}
int s3cfb_set_alpha_info(struct fb_var_screeninfo *var,
struct s3cfb_window *win)
{
if (var->transp.length > 0)
win->alpha.mode = PIXEL_BLENDING;
else {
win->alpha.mode = PLANE_BLENDING;
win->alpha.channel = 0;
win->alpha.value = S3CFB_AVALUE(0xf, 0xf, 0xf);
}
return 0;
}
int s3cfb_check_var_window(struct s3cfb_global *fbdev,
struct fb_var_screeninfo *var, struct fb_info *fb)
{
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
struct s3cfb_window *win = fb->par;
struct s3cfb_lcd *lcd = fbdev->lcd;
dev_dbg(fbdev->dev, "[fb%d] win%d: check_var\n", fb->node, win->id);
if (var->bits_per_pixel != 16 && var->bits_per_pixel != 24 &&
var->bits_per_pixel != 32) {
dev_err(fbdev->dev, "invalid bits per pixel\n");
return -EINVAL;
}
if (var->xres > lcd->width)
var->xres = lcd->width;
if (var->yres > lcd->height)
var->yres = lcd->height;
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
#if defined(CONFIG_FB_S5P_VIRTUAL)
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres * CONFIG_FB_S5P_NR_BUFFERS;
#endif
if (var->xoffset > (var->xres_virtual - var->xres))
var->xoffset = var->xres_virtual - var->xres;
if (var->yoffset + var->yres > var->yres_virtual)
var->yoffset = var->yres_virtual - var->yres;
if (win->x + var->xres > lcd->width)
win->x = lcd->width - var->xres;
if (win->y + var->yres > lcd->height)
win->y = lcd->height - var->yres;
if (var->pixclock != fbdev->fb[pdata->default_win]->var.pixclock) {
dev_info(fbdev->dev, "pixclk is changed from %d Hz to %d Hz\n",
fbdev->fb[pdata->default_win]->var.pixclock, var->pixclock);
}
s3cfb_set_bitfield(var);
s3cfb_set_alpha_info(var, win);
return 0;
}
int s3cfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
s3cfb_check_var_window(fbdev, var, fb);
return 0;
}
void s3cfb_set_win_params(struct s3cfb_global *fbdev, int id)
{
s3cfb_set_window_control(fbdev, id);
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
s3cfb_set_oneshot(fbdev, id);
#else
s3cfb_set_window_position(fbdev, id);
s3cfb_set_window_size(fbdev, id);
s3cfb_set_buffer_address(fbdev, id);
s3cfb_set_buffer_size(fbdev, id);
#endif
if (id > 0) {
s3cfb_set_alpha_blending(fbdev, id);
s3cfb_set_chroma_key(fbdev, id);
s3cfb_set_alpha_value_width(fbdev, id);
/* Set to premultiplied mode as default */
s3cfb_set_alpha_mode(fbdev, id, BLENDING_PREMULT);
}
}
int s3cfb_set_par_window(struct s3cfb_global *fbdev, struct fb_info *fb)
{
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
struct s3cfb_window *win = fb->par;
int ret;
dev_dbg(fbdev->dev, "[fb%d] win%d: set_par\n", fb->node, win->id);
#if (!defined(CONFIG_CPU_EXYNOS4210))
if ((win->id != pdata->default_win) && fb->fix.smem_start)
s3cfb_unmap_video_memory(fbdev, fb);
#endif
/* modify the fix info */
if (win->id != pdata->default_win) {
fb->fix.line_length = fb->var.xres_virtual *
fb->var.bits_per_pixel / 8;
fb->fix.smem_len = fb->fix.line_length * fb->var.yres_virtual;
}
if (win->id != pdata->default_win && !fb->fix.smem_start) {
ret = s3cfb_map_video_memory(fbdev, fb);
if (ret != 0)
return ret;
}
s3cfb_set_win_params(fbdev, win->id);
return 0;
}
int s3cfb_set_par(struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
int ret = 0;
#ifdef CONFIG_EXYNOS_DEV_PD
if (unlikely(fbdev->system_state == POWER_OFF)) {
dev_err(fbdev->dev, "%s::system_state is POWER_OFF, fb%d, win%d\n", __func__, fb->node, win->id);
return 0;
}
#endif
ret = s3cfb_set_par_window(fbdev, fb);
return ret;
}
int s3cfb_init_fbinfo(struct s3cfb_global *fbdev, int id)
{
struct fb_info *fb = fbdev->fb[id];
struct fb_fix_screeninfo *fix = &fb->fix;
struct fb_var_screeninfo *var = &fb->var;
struct s3cfb_window *win = fb->par;
struct s3cfb_alpha *alpha = &win->alpha;
struct s3cfb_lcd *lcd = fbdev->lcd;
struct s3cfb_lcd_timing *timing = &lcd->timing;
memset(win, 0, sizeof(struct s3cfb_window));
platform_set_drvdata(to_platform_device(fbdev->dev), fb);
strcpy(fix->id, S3CFB_NAME);
/* fimd specific */
win->id = id;
win->path = DATA_PATH_DMA;
win->dma_burst = 16;
s3cfb_update_power_state(fbdev, win->id, FB_BLANK_POWERDOWN);
alpha->mode = PLANE_BLENDING;
/* fbinfo */
fb->fbops = &s3cfb_ops;
fb->flags = FBINFO_FLAG_DEFAULT;
fb->pseudo_palette = &win->pseudo_pal;
#if (CONFIG_FB_S5P_NR_BUFFERS != 1)
#if defined(CONFIG_CPU_EXYNOS4210)
fix->xpanstep = 1; /* xpanstep can be 1 if bits_per_pixel is 32 */
#else
fix->xpanstep = 2;
#endif
fix->ypanstep = 1;
#else
fix->xpanstep = 0;
fix->ypanstep = 0;
#endif
fix->type = FB_TYPE_PACKED_PIXELS;
fix->accel = FB_ACCEL_NONE;
fix->visual = FB_VISUAL_TRUECOLOR;
var->xres = lcd->width;
var->yres = lcd->height;
#if defined(CONFIG_FB_S5P_VIRTUAL)
var->xres_virtual = CONFIG_FB_S5P_X_VRES;
var->yres_virtual = CONFIG_FB_S5P_Y_VRES * CONFIG_FB_S5P_NR_BUFFERS;
#else
var->xres_virtual = var->xres;
var->yres_virtual = var->yres * CONFIG_FB_S5P_NR_BUFFERS;
#endif
var->bits_per_pixel = 32;
var->xoffset = 0;
var->yoffset = 0;
var->width = lcd->p_width;
var->height = lcd->p_height;
var->transp.length = 8;
fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
fix->smem_len = fix->line_length * var->yres_virtual;
var->nonstd = 0;
var->activate = FB_ACTIVATE_NOW;
var->vmode = FB_VMODE_NONINTERLACED;
var->hsync_len = timing->h_sw;
var->vsync_len = timing->v_sw;
var->left_margin = timing->h_bp;
var->right_margin = timing->h_fp;
var->upper_margin = timing->v_bp;
var->lower_margin = timing->v_fp;
var->pixclock = (lcd->freq *
(var->left_margin + var->right_margin
+ var->hsync_len + var->xres) *
(var->upper_margin + var->lower_margin
+ var->vsync_len + var->yres));
var->pixclock = KHZ2PICOS(var->pixclock/1000);
s3cfb_set_bitfield(var);
s3cfb_set_alpha_info(var, win);
return 0;
}
int s3cfb_alloc_framebuffer(struct s3cfb_global *fbdev, int fimd_id)
{
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
int ret = 0;
int i;
fbdev->fb = kmalloc(pdata->nr_wins *
sizeof(struct fb_info *), GFP_KERNEL);
if (!fbdev->fb) {
dev_err(fbdev->dev, "not enough memory\n");
ret = -ENOMEM;
goto err_alloc;
}
for (i = 0; i < pdata->nr_wins; i++) {
fbdev->fb[i] = framebuffer_alloc(sizeof(struct s3cfb_window),
fbdev->dev);
if (!fbdev->fb[i]) {
dev_err(fbdev->dev, "not enough memory\n");
ret = -ENOMEM;
goto err_alloc_fb;
}
ret = s3cfb_init_fbinfo(fbdev, i);
if (ret) {
dev_err(fbdev->dev,
"failed to allocate memory for fb%d\n", i);
ret = -ENOMEM;
goto err_alloc_fb;
}
if (i == pdata->default_win) {
if (s3cfb_map_default_video_memory(fbdev,
fbdev->fb[i], fimd_id)) {
dev_err(fbdev->dev,
"failed to map video memory "
"for default window (%d)\n", i);
ret = -ENOMEM;
goto err_alloc_fb;
} else {
memcpy(&(fbdev->initial_fix), &(fbdev->fb[i]->fix), sizeof(struct fb_fix_screeninfo));
memcpy(&(fbdev->initial_var), &(fbdev->fb[i]->var), sizeof(struct fb_var_screeninfo));
}
}
sec_getlog_supply_fbinfo((void *)fbdev->fb[i]->fix.smem_start,
fbdev->fb[i]->var.xres,
fbdev->fb[i]->var.yres,
fbdev->fb[i]->var.bits_per_pixel, 2);
}
return 0;
err_alloc_fb:
for (i = 0; i < pdata->nr_wins; i++) {
if (fbdev->fb[i])
framebuffer_release(fbdev->fb[i]);
}
kfree(fbdev->fb);
err_alloc:
return ret;
}
int s3cfb_open(struct fb_info *fb, int user)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
int ret = 0;
mutex_lock(&fbdev->lock);
if (atomic_read(&win->in_use)) {
if (win->id == pdata->default_win) {
dev_dbg(fbdev->dev,
"mutiple open fir default window\n");
ret = 0;
} else {
dev_dbg(fbdev->dev,
"do not allow multiple open \
for non-default window\n");
ret = -EBUSY;
}
} else {
atomic_inc(&win->in_use);
}
mutex_unlock(&fbdev->lock);
return ret;
}
int s3cfb_release_window(struct fb_info *fb)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
#ifdef CONFIG_EXYNOS_DEV_PD
if (unlikely(fbdev->system_state == POWER_OFF)) {
dev_err(fbdev->dev, "%s::system_state is POWER_OFF, fb%d, win%d\n", __func__, fb->node, win->id);
return 0;
}
#endif
if (win->id != pdata->default_win) {
s3cfb_disable_window(fbdev, win->id);
s3cfb_unmap_video_memory(fbdev, fb);
#if !defined(CONFIG_CPU_EXYNOS4212) && !defined(CONFIG_CPU_EXYNOS4412)
s3cfb_set_buffer_address(fbdev, win->id);
#endif
}
win->x = 0;
win->y = 0;
return 0;
}
int s3cfb_release(struct fb_info *fb, int user)
{
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
s3cfb_release_window(fb);
mutex_lock(&fbdev->lock);
atomic_dec(&win->in_use);
mutex_unlock(&fbdev->lock);
return 0;
}
inline unsigned int __chan_to_field(unsigned int chan, struct fb_bitfield bf)
{
chan &= 0xffff;
chan >>= 16 - bf.length;
return chan << bf.offset;
}
int s3cfb_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *fb)
{
unsigned int *pal = (unsigned int *)fb->pseudo_palette;
unsigned int val = 0;
if (regno < 16) {
/* fake palette of 16 colors */
val |= __chan_to_field(red, fb->var.red);
val |= __chan_to_field(green, fb->var.green);
val |= __chan_to_field(blue, fb->var.blue);
val |= __chan_to_field(transp, fb->var.transp);
pal[regno] = val;
}
return 0;
}
int s3cfb_blank(int blank_mode, struct fb_info *fb)
{
#if defined(CONFIG_CPU_EXYNOS4210)
return 0;
#endif
struct s3cfb_window *win = fb->par;
struct s3cfb_window *tmp_win;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct platform_device *pdev = to_platform_device(fbdev->dev);
struct s3c_platform_fb *pdata = to_fb_plat(fbdev->dev);
int enabled_win = 0;
int i;
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412) || defined(CONFIG_CPU_EXYNOS4210)
int win_status;
#endif
dev_info(fbdev->dev, "change blank mode=%d, fb%d, win%d\n", blank_mode, fb->node, win->id);
#ifdef CONFIG_EXYNOS_DEV_PD
if (unlikely(fbdev->system_state == POWER_OFF)) {
dev_err(fbdev->dev, "%s::system_state is POWER_OFF, fb%d, win%d\n", __func__, fb->node, win->id);
win->power_state = blank_mode;
if (win->id != pdata->default_win)
return NOT_DEFAULT_WINDOW;
else
return 0;
}
#endif
switch (blank_mode) {
case FB_BLANK_UNBLANK:
if (!fb->fix.smem_start) {
dev_info(fbdev->dev, "[fb%d] win%d: no allocated memory \
for unblank\n", fb->node, win->id);
break;
}
if (win->power_state == FB_BLANK_UNBLANK) {
dev_info(fbdev->dev, "[fb%d] win%d: already in \
FB_BLANK_UNBLANK\n", fb->node, win->id);
break;
} else {
s3cfb_update_power_state(fbdev, win->id,
FB_BLANK_UNBLANK);
}
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win == 0) {
/* temporarily nonuse for recovery, will modify code */
/* pdata->clk_on(pdev, &fbdev->clock); */
s3cfb_init_global(fbdev);
s3cfb_set_clock(fbdev);
for (i = 0; i < pdata->nr_wins; i++) {
tmp_win = fbdev->fb[i]->par;
if (tmp_win->owner == DMA_MEM_FIMD)
s3cfb_set_win_params(fbdev,
tmp_win->id);
}
}
if (win->enabled) { /* from FB_BLANK_NORMAL */
s3cfb_win_map_off(fbdev, win->id);
} else { /* from FB_BLANK_POWERDOWN */
s3cfb_enable_window(fbdev, win->id);
if (!s3cfb_get_win_cur_buf_addr(fbdev, win->id))
s3cfb_window_off(fbdev, win->id);
}
if (enabled_win == 0) {
s3cfb_display_on(fbdev);
if (pdata->backlight_on)
pdata->backlight_on(pdev);
if (pdata->lcd_on)
pdata->lcd_on(pdev);
if (fbdev->lcd->init_ldi)
fbdev->lcd->init_ldi();
}
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)\
|| defined(CONFIG_CPU_EXYNOS4210)
win_status = window_on_off_status(fbdev);