M7350/kernel/drivers/video/msm/mdp4_overlay_dsi_video.c
2024-09-09 08:52:07 +00:00

1145 lines
28 KiB
C

/* Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/hrtimer.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/fb.h>
#include <linux/msm_mdp.h>
#include <linux/ktime.h>
#include <linux/wakelock.h>
#include <linux/time.h>
#include <asm/system.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include "mdp.h"
#include "msm_fb.h"
#include "mdp4.h"
#include "mipi_dsi.h"
#include <mach/iommu_domains.h>
#define DSI_VIDEO_BASE 0xE0000
static int first_pixel_start_x;
static int first_pixel_start_y;
static int dsi_video_enabled;
#define MAX_CONTROLLER 1
static struct vsycn_ctrl {
struct device *dev;
int inited;
int update_ndx;
int ov_koff;
int ov_done;
atomic_t suspend;
atomic_t vsync_resume;
int wait_vsync_cnt;
int blt_change;
int blt_free;
u32 blt_ctrl;
u32 blt_mode;
int sysfs_created;
struct mutex update_lock;
struct completion ov_comp;
struct completion dmap_comp;
struct completion vsync_comp;
spinlock_t spin_lock;
struct msm_fb_data_type *mfd;
struct mdp4_overlay_pipe *base_pipe;
struct vsync_update vlist[2];
int vsync_irq_enabled;
ktime_t vsync_time;
} vsync_ctrl_db[MAX_CONTROLLER];
static void vsync_irq_enable(int intr, int term)
{
unsigned long flag;
spin_lock_irqsave(&mdp_spin_lock, flag);
outp32(MDP_INTR_CLEAR, intr);
mdp_intr_mask |= intr;
outp32(MDP_INTR_ENABLE, mdp_intr_mask);
mdp_enable_irq(term);
spin_unlock_irqrestore(&mdp_spin_lock, flag);
pr_debug("%s: IRQ-en done, term=%x\n", __func__, term);
}
static void vsync_irq_disable(int intr, int term)
{
unsigned long flag;
spin_lock_irqsave(&mdp_spin_lock, flag);
outp32(MDP_INTR_CLEAR, intr);
mdp_intr_mask &= ~intr;
outp32(MDP_INTR_ENABLE, mdp_intr_mask);
mdp_disable_irq_nosync(term);
spin_unlock_irqrestore(&mdp_spin_lock, flag);
pr_debug("%s: IRQ-dis done, term=%x\n", __func__, term);
}
static void mdp4_overlay_dsi_video_start(void)
{
if (!dsi_video_enabled) {
/* enable DSI block */
mdp4_iommu_attach();
mdp_pipe_ctrl(MDP_OVERLAY0_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 1);
dsi_video_enabled = 1;
}
}
/*
* mdp4_dsi_video_pipe_queue:
* called from thread context
*/
void mdp4_dsi_video_pipe_queue(int cndx, struct mdp4_overlay_pipe *pipe)
{
struct vsycn_ctrl *vctrl;
struct vsync_update *vp;
struct mdp4_overlay_pipe *pp;
int undx;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
if (atomic_read(&vctrl->suspend) > 0)
return;
mutex_lock(&vctrl->update_lock);
undx = vctrl->update_ndx;
vp = &vctrl->vlist[undx];
pp = &vp->plist[pipe->pipe_ndx - 1]; /* ndx start form 1 */
pr_debug("%s: vndx=%d pipe=%x ndx=%d num=%d pid=%d\n",
__func__, undx, (int)pipe, pipe->pipe_ndx, pipe->pipe_num,
current->pid);
*pp = *pipe; /* clone it */
vp->update_cnt++;
mutex_unlock(&vctrl->update_lock);
mdp4_stat.overlay_play[pipe->mixer_num]++;
}
static void mdp4_dsi_video_blt_ov_update(struct mdp4_overlay_pipe *pipe);
static void mdp4_dsi_video_wait4dmap(int cndx);
static void mdp4_dsi_video_wait4ov(int cndx);
int mdp4_dsi_video_pipe_commit(int cndx, int wait)
{
int i, undx;
int mixer = 0;
struct vsycn_ctrl *vctrl;
struct vsync_update *vp;
struct mdp4_overlay_pipe *pipe;
struct mdp4_overlay_pipe *real_pipe;
unsigned long flags;
int cnt = 0;
vctrl = &vsync_ctrl_db[cndx];
mutex_lock(&vctrl->update_lock);
undx = vctrl->update_ndx;
vp = &vctrl->vlist[undx];
pipe = vctrl->base_pipe;
mixer = pipe->mixer_num;
mdp_update_pm(vctrl->mfd, vctrl->vsync_time);
if (vp->update_cnt == 0) {
mutex_unlock(&vctrl->update_lock);
return cnt;
}
vctrl->update_ndx++;
vctrl->update_ndx &= 0x01;
vp->update_cnt = 0; /* reset */
if (vctrl->blt_free) {
vctrl->blt_free--;
if (vctrl->blt_free == 0)
mdp4_free_writeback_buf(vctrl->mfd, mixer);
}
mutex_unlock(&vctrl->update_lock);
/* free previous committed iommu back to pool */
mdp4_overlay_iommu_unmap_freelist(mixer);
spin_lock_irqsave(&vctrl->spin_lock, flags);
if (vctrl->ov_koff != vctrl->ov_done) {
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
pr_err("%s: Error, frame dropped %d %d\n", __func__,
vctrl->ov_koff, vctrl->ov_done);
return 0;
}
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
pipe = vp->plist;
for (i = 0; i < OVERLAY_PIPE_MAX; i++, pipe++) {
if (pipe->pipe_used) {
cnt++;
real_pipe = mdp4_overlay_ndx2pipe(pipe->pipe_ndx);
if (real_pipe && real_pipe->pipe_used) {
/* pipe not unset */
mdp4_overlay_vsync_commit(pipe);
}
/* free previous iommu to freelist
* which will be freed at next
* pipe_commit
*/
mdp4_overlay_iommu_pipe_free(pipe->pipe_ndx, 0);
pipe->pipe_used = 0; /* clear */
}
}
mdp4_mixer_stage_commit(mixer);
/* start timing generator & mmu if they are not started yet */
mdp4_overlay_dsi_video_start();
pipe = vctrl->base_pipe;
spin_lock_irqsave(&vctrl->spin_lock, flags);
if (pipe->ov_blt_addr) {
mdp4_dsi_video_blt_ov_update(pipe);
pipe->ov_cnt++;
INIT_COMPLETION(vctrl->ov_comp);
vsync_irq_enable(INTR_OVERLAY0_DONE, MDP_OVERLAY0_TERM);
mb();
vctrl->ov_koff++;
/* kickoff overlay engine */
mdp4_stat.kickoff_ov0++;
outpdw(MDP_BASE + 0x0004, 0);
} else {
/* schedule second phase update at dmap */
INIT_COMPLETION(vctrl->dmap_comp);
vsync_irq_enable(INTR_DMA_P_DONE, MDP_DMAP_TERM);
}
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
mdp4_stat.overlay_commit[pipe->mixer_num]++;
if (wait) {
if (pipe->ov_blt_addr)
mdp4_dsi_video_wait4ov(cndx);
else
mdp4_dsi_video_wait4dmap(cndx);
}
return cnt;
}
void mdp4_dsi_video_vsync_ctrl(struct fb_info *info, int enable)
{
struct vsycn_ctrl *vctrl;
int cndx = 0;
vctrl = &vsync_ctrl_db[cndx];
if (vctrl->vsync_irq_enabled == enable)
return;
pr_debug("%s: vsync enable=%d\n", __func__, enable);
vctrl->vsync_irq_enabled = enable;
if (enable)
vsync_irq_enable(INTR_PRIMARY_VSYNC, MDP_PRIM_VSYNC_TERM);
else
vsync_irq_disable(INTR_PRIMARY_VSYNC, MDP_PRIM_VSYNC_TERM);
if (vctrl->vsync_irq_enabled && atomic_read(&vctrl->suspend) == 0)
atomic_set(&vctrl->vsync_resume, 1);
}
void mdp4_dsi_video_wait4vsync(int cndx, long long *vtime)
{
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
unsigned long flags;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
if (atomic_read(&vctrl->suspend) > 0) {
*vtime = -1;
return;
}
/* start timing generator & mmu if they are not started yet */
mdp4_overlay_dsi_video_start();
spin_lock_irqsave(&vctrl->spin_lock, flags);
if (vctrl->wait_vsync_cnt == 0)
INIT_COMPLETION(vctrl->vsync_comp);
vctrl->wait_vsync_cnt++;
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
wait_for_completion(&vctrl->vsync_comp);
mdp4_stat.wait4vsync0++;
*vtime = ktime_to_ns(vctrl->vsync_time);
}
static void mdp4_dsi_video_wait4dmap(int cndx)
{
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
if (atomic_read(&vctrl->suspend) > 0)
return;
wait_for_completion(&vctrl->dmap_comp);
}
static void mdp4_dsi_video_wait4dmap_done(int cndx)
{
unsigned long flags;
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
spin_lock_irqsave(&vctrl->spin_lock, flags);
INIT_COMPLETION(vctrl->dmap_comp);
vsync_irq_enable(INTR_DMA_P_DONE, MDP_DMAP_TERM);
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
mdp4_dsi_video_wait4dmap(cndx);
}
static void mdp4_dsi_video_wait4ov(int cndx)
{
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
if (atomic_read(&vctrl->suspend) > 0)
return;
wait_for_completion(&vctrl->ov_comp);
}
ssize_t mdp4_dsi_video_show_event(struct device *dev,
struct device_attribute *attr, char *buf)
{
int cndx;
struct vsycn_ctrl *vctrl;
ssize_t ret = 0;
unsigned long flags;
u64 vsync_tick;
cndx = 0;
vctrl = &vsync_ctrl_db[0];
if (atomic_read(&vctrl->suspend) > 0 ||
atomic_read(&vctrl->vsync_resume) == 0)
return 0;
spin_lock_irqsave(&vctrl->spin_lock, flags);
if (vctrl->wait_vsync_cnt == 0)
INIT_COMPLETION(vctrl->vsync_comp);
vctrl->wait_vsync_cnt++;
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
ret = wait_for_completion_interruptible_timeout(&vctrl->vsync_comp,
msecs_to_jiffies(VSYNC_PERIOD * 4));
if (ret <= 0) {
vctrl->wait_vsync_cnt = 0;
vsync_tick = ktime_to_ns(ktime_get());
ret = snprintf(buf, PAGE_SIZE, "VSYNC=%llu", vsync_tick);
buf[strlen(buf) + 1] = '\0';
return ret;
}
spin_lock_irqsave(&vctrl->spin_lock, flags);
vsync_tick = ktime_to_ns(vctrl->vsync_time);
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
ret = snprintf(buf, PAGE_SIZE, "VSYNC=%llu", vsync_tick);
buf[strlen(buf) + 1] = '\0';
return ret;
}
void mdp4_dsi_vsync_init(int cndx)
{
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
pr_debug("%s: ndx=%d\n", __func__, cndx);
vctrl = &vsync_ctrl_db[cndx];
if (vctrl->inited)
return;
vctrl->inited = 1;
vctrl->update_ndx = 0;
mutex_init(&vctrl->update_lock);
init_completion(&vctrl->vsync_comp);
init_completion(&vctrl->dmap_comp);
init_completion(&vctrl->ov_comp);
atomic_set(&vctrl->suspend, 1);
atomic_set(&vctrl->vsync_resume, 1);
spin_lock_init(&vctrl->spin_lock);
}
void mdp4_dsi_video_base_swap(int cndx, struct mdp4_overlay_pipe *pipe)
{
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
vctrl->base_pipe = pipe;
}
int mdp4_dsi_video_on(struct platform_device *pdev)
{
int dsi_width;
int dsi_height;
int dsi_bpp;
int dsi_border_clr;
int dsi_underflow_clr;
int dsi_hsync_skew;
int hsync_period;
int hsync_ctrl;
int vsync_period;
int display_hctl;
int display_v_start;
int display_v_end;
int active_hctl;
int active_h_start;
int active_h_end;
int active_v_start;
int active_v_end;
int ctrl_polarity;
int h_back_porch;
int h_front_porch;
int v_back_porch;
int v_front_porch;
int hsync_pulse_width;
int vsync_pulse_width;
int hsync_polarity;
int vsync_polarity;
int data_en_polarity;
int hsync_start_x;
int hsync_end_x;
uint8 *buf;
unsigned int buf_offset;
int bpp, ptype;
struct fb_info *fbi;
struct fb_var_screeninfo *var;
struct msm_fb_data_type *mfd;
struct mdp4_overlay_pipe *pipe;
int ret = 0;
int cndx = 0;
struct vsycn_ctrl *vctrl;
struct msm_panel_info *pinfo;
vctrl = &vsync_ctrl_db[cndx];
mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);
if (!mfd)
return -ENODEV;
if (mfd->key != MFD_KEY)
return -EINVAL;
vctrl->mfd = mfd;
vctrl->dev = mfd->fbi->dev;
pinfo = &mfd->panel_info;
vctrl->blt_ctrl = pinfo->lcd.blt_ctrl;
vctrl->blt_mode = pinfo->lcd.blt_mode;
/* mdp clock on */
mdp_clk_ctrl(1);
fbi = mfd->fbi;
var = &fbi->var;
bpp = fbi->var.bits_per_pixel / 8;
buf = (uint8 *) fbi->fix.smem_start;
buf_offset = calc_fb_offset(mfd, fbi, bpp);
if (vctrl->base_pipe == NULL) {
ptype = mdp4_overlay_format2type(mfd->fb_imgType);
if (ptype < 0)
printk(KERN_INFO "%s: format2type failed\n", __func__);
pipe = mdp4_overlay_pipe_alloc(ptype, MDP4_MIXER0);
if (pipe == NULL) {
printk(KERN_INFO "%s: pipe_alloc failed\n", __func__);
return -EBUSY;
}
pipe->pipe_used++;
pipe->mixer_stage = MDP4_MIXER_STAGE_BASE;
pipe->mixer_num = MDP4_MIXER0;
pipe->src_format = mfd->fb_imgType;
mdp4_overlay_panel_mode(pipe->mixer_num, MDP4_PANEL_DSI_VIDEO);
ret = mdp4_overlay_format2pipe(pipe);
if (ret < 0)
printk(KERN_INFO "%s: format2type failed\n", __func__);
pipe->ov_blt_addr = 0;
pipe->dma_blt_addr = 0;
vctrl->base_pipe = pipe; /* keep it */
mdp4_init_writeback_buf(mfd, MDP4_MIXER0);
} else {
pipe = vctrl->base_pipe;
}
if (!(mfd->cont_splash_done)) {
mfd->cont_splash_done = 1;
mdp4_dsi_video_wait4dmap_done(0);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 0);
dsi_video_enabled = 0;
mipi_dsi_controller_cfg(0);
/* Clks are enabled in probe.
Disabling clocks now */
mdp_clk_ctrl(0);
}
pipe->src_height = fbi->var.yres;
pipe->src_width = fbi->var.xres;
pipe->src_h = fbi->var.yres;
pipe->src_w = fbi->var.xres;
pipe->src_y = 0;
pipe->src_x = 0;
pipe->dst_h = fbi->var.yres;
pipe->dst_w = fbi->var.xres;
pipe->srcp0_ystride = fbi->fix.line_length;
pipe->bpp = bpp;
if (mfd->display_iova)
pipe->srcp0_addr = mfd->display_iova + buf_offset;
else
pipe->srcp0_addr = (uint32)(buf + buf_offset);
pipe->dst_h = fbi->var.yres;
pipe->dst_w = fbi->var.xres;
mdp4_overlay_mdp_pipe_req(pipe, mfd);
mdp4_calc_blt_mdp_bw(mfd, pipe);
atomic_set(&vctrl->suspend, 0);
mdp4_overlay_dmap_xy(pipe); /* dma_p */
mdp4_overlay_dmap_cfg(mfd, 1);
mdp4_overlay_rgb_setup(pipe);
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_reg_flush(pipe, 1);
mdp4_mixer_stage_up(pipe, 0);
mdp4_mixer_stage_commit(pipe->mixer_num);
/*
* DSI timing setting
*/
h_back_porch = var->left_margin;
h_front_porch = var->right_margin;
v_back_porch = var->upper_margin;
v_front_porch = var->lower_margin;
hsync_pulse_width = var->hsync_len;
vsync_pulse_width = var->vsync_len;
dsi_border_clr = mfd->panel_info.lcdc.border_clr;
dsi_underflow_clr = mfd->panel_info.lcdc.underflow_clr;
dsi_hsync_skew = mfd->panel_info.lcdc.hsync_skew;
dsi_width = mfd->panel_info.xres +
mfd->panel_info.lcdc.xres_pad;
dsi_height = mfd->panel_info.yres +
mfd->panel_info.lcdc.yres_pad;
dsi_bpp = mfd->panel_info.bpp;
hsync_period = hsync_pulse_width + h_back_porch + dsi_width
+ h_front_porch;
hsync_ctrl = (hsync_period << 16) | hsync_pulse_width;
hsync_start_x = h_back_porch + hsync_pulse_width;
hsync_end_x = hsync_period - h_front_porch - 1;
display_hctl = (hsync_end_x << 16) | hsync_start_x;
vsync_period =
(vsync_pulse_width + v_back_porch + dsi_height + v_front_porch);
display_v_start = ((vsync_pulse_width + v_back_porch) * hsync_period)
+ dsi_hsync_skew;
display_v_end =
((vsync_period - v_front_porch) * hsync_period) + dsi_hsync_skew - 1;
if (dsi_width != var->xres) {
active_h_start = hsync_start_x + first_pixel_start_x;
active_h_end = active_h_start + var->xres - 1;
active_hctl =
ACTIVE_START_X_EN | (active_h_end << 16) | active_h_start;
} else {
active_hctl = 0;
}
if (dsi_height != var->yres) {
active_v_start =
display_v_start + first_pixel_start_y * hsync_period;
active_v_end = active_v_start + (var->yres) * hsync_period - 1;
active_v_start |= ACTIVE_START_Y_EN;
} else {
active_v_start = 0;
active_v_end = 0;
}
dsi_underflow_clr |= 0x80000000; /* enable recovery */
hsync_polarity = 0;
vsync_polarity = 0;
data_en_polarity = 0;
ctrl_polarity =
(data_en_polarity << 2) | (vsync_polarity << 1) | (hsync_polarity);
mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x4, hsync_ctrl);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x8, vsync_period * hsync_period);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0xc,
vsync_pulse_width * hsync_period);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x10, display_hctl);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x14, display_v_start);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x18, display_v_end);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x1c, active_hctl);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x20, active_v_start);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x24, active_v_end);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x28, dsi_border_clr);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x2c, dsi_underflow_clr);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x30, dsi_hsync_skew);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE + 0x38, ctrl_polarity);
mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);
mdp_histogram_ctrl_all(TRUE);
return ret;
}
int mdp4_dsi_video_off(struct platform_device *pdev)
{
int ret = 0;
int cndx = 0;
struct msm_fb_data_type *mfd;
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
struct vsync_update *vp;
unsigned long flags;
int undx, need_wait = 0;
mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev);
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
atomic_set(&vctrl->suspend, 1);
atomic_set(&vctrl->vsync_resume, 0);
msleep(20); /* >= 17 ms */
complete_all(&vctrl->vsync_comp);
if (pipe->ov_blt_addr) {
spin_lock_irqsave(&vctrl->spin_lock, flags);
if (vctrl->ov_koff != vctrl->ov_done)
need_wait = 1;
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
if (need_wait)
mdp4_dsi_video_wait4ov(0);
}
mdp_histogram_ctrl_all(FALSE);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 0);
dsi_video_enabled = 0;
if (vctrl->vsync_irq_enabled) {
vctrl->vsync_irq_enabled = 0;
vsync_irq_disable(INTR_PRIMARY_VSYNC, MDP_PRIM_VSYNC_TERM);
}
undx = vctrl->update_ndx;
vp = &vctrl->vlist[undx];
if (vp->update_cnt) {
/*
* pipe's iommu will be freed at next overlay play
* and iommu_drop statistic will be increased by one
*/
vp->update_cnt = 0; /* empty queue */
}
if (pipe) {
/* sanity check, free pipes besides base layer */
mdp4_overlay_unset_mixer(pipe->mixer_num);
if (mfd->ref_cnt == 0) {
/* adb stop */
if (pipe->pipe_type == OVERLAY_TYPE_BF)
mdp4_overlay_borderfill_stage_down(pipe);
/* base pipe may change after borderfill_stage_down */
pipe = vctrl->base_pipe;
mdp4_mixer_stage_down(pipe, 1);
mdp4_overlay_pipe_free(pipe);
vctrl->base_pipe = NULL;
} else {
/* system suspending */
mdp4_mixer_stage_down(vctrl->base_pipe, 1);
mdp4_overlay_iommu_pipe_free(
vctrl->base_pipe->pipe_ndx, 1);
}
}
/* mdp clock off */
mdp_clk_ctrl(0);
mdp_pipe_ctrl(MDP_OVERLAY0_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);
return ret;
}
static __u32 msm_fb_line_length(__u32 fb_index, __u32 xres, int bpp)
{
/*
* The adreno GPU hardware requires that the pitch be aligned to
* 32 pixels for color buffers, so for the cases where the GPU
* is writing directly to fb0, the framebuffer pitch
* also needs to be 32 pixel aligned
*/
if (fb_index == 0)
return ALIGN(xres, 32) * bpp;
else
return xres * bpp;
}
/* 3D side by side */
void mdp4_dsi_video_3d_sbys(struct msm_fb_data_type *mfd,
struct msmfb_overlay_3d *r3d)
{
struct fb_info *fbi;
unsigned int buf_offset;
int bpp;
uint8 *buf = NULL;
int cndx = 0;
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
if (vctrl->base_pipe == NULL)
return;
pipe = vctrl->base_pipe;
pipe->is_3d = r3d->is_3d;
pipe->src_height_3d = r3d->height;
pipe->src_width_3d = r3d->width;
if (pipe->is_3d)
mdp4_overlay_panel_3d(pipe->mixer_num, MDP4_3D_SIDE_BY_SIDE);
else
mdp4_overlay_panel_3d(pipe->mixer_num, MDP4_3D_NONE);
fbi = mfd->fbi;
bpp = fbi->var.bits_per_pixel / 8;
buf = (uint8 *) fbi->fix.smem_start;
buf_offset = calc_fb_offset(mfd, fbi, bpp);
if (pipe->is_3d) {
pipe->src_height = pipe->src_height_3d;
pipe->src_width = pipe->src_width_3d;
pipe->src_h = pipe->src_height_3d;
pipe->src_w = pipe->src_width_3d;
pipe->dst_h = pipe->src_height_3d;
pipe->dst_w = pipe->src_width_3d;
pipe->srcp0_ystride = msm_fb_line_length(0,
pipe->src_width, bpp);
} else {
/* 2D */
pipe->src_height = fbi->var.yres;
pipe->src_width = fbi->var.xres;
pipe->src_h = fbi->var.yres;
pipe->src_w = fbi->var.xres;
pipe->dst_h = fbi->var.yres;
pipe->dst_w = fbi->var.xres;
pipe->srcp0_ystride = fbi->fix.line_length;
}
pipe->src_y = 0;
pipe->src_x = 0;
pipe->dst_y = 0;
pipe->dst_x = 0;
if (mfd->display_iova)
pipe->srcp0_addr = mfd->display_iova + buf_offset;
else
pipe->srcp0_addr = (uint32)(buf + buf_offset);
mdp4_overlay_rgb_setup(pipe);
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_dmap_xy(pipe);
mdp4_overlay_dmap_cfg(mfd, 1);
mdp4_overlay_reg_flush(pipe, 1);
mdp4_mixer_stage_up(pipe, 0);
mdp4_mixer_stage_commit(pipe->mixer_num);
mb();
}
static void mdp4_dsi_video_blt_ov_update(struct mdp4_overlay_pipe *pipe)
{
uint32 off, addr;
int bpp;
char *overlay_base;
if (pipe->ov_blt_addr == 0)
return;
#ifdef BLT_RGB565
bpp = 2; /* overlay ouput is RGB565 */
#else
bpp = 3; /* overlay ouput is RGB888 */
#endif
off = 0;
if (pipe->ov_cnt & 0x01)
off = pipe->src_height * pipe->src_width * bpp;
addr = pipe->ov_blt_addr + off;
/* overlay 0 */
overlay_base = MDP_BASE + MDP4_OVERLAYPROC0_BASE;/* 0x10000 */
outpdw(overlay_base + 0x000c, addr);
outpdw(overlay_base + 0x001c, addr);
}
static void mdp4_dsi_video_blt_dmap_update(struct mdp4_overlay_pipe *pipe)
{
uint32 off, addr;
int bpp;
if (pipe->ov_blt_addr == 0)
return;
#ifdef BLT_RGB565
bpp = 2; /* overlay ouput is RGB565 */
#else
bpp = 3; /* overlay ouput is RGB888 */
#endif
off = 0;
if (pipe->dmap_cnt & 0x01)
off = pipe->src_height * pipe->src_width * bpp;
addr = pipe->dma_blt_addr + off;
/* dmap */
MDP_OUTP(MDP_BASE + 0x90008, addr);
}
/*
* mdp4_primary_vsync_dsi_video: called from isr
*/
void mdp4_primary_vsync_dsi_video(void)
{
int cndx;
struct vsycn_ctrl *vctrl;
cndx = 0;
vctrl = &vsync_ctrl_db[cndx];
pr_debug("%s: cpu=%d\n", __func__, smp_processor_id());
spin_lock(&vctrl->spin_lock);
vctrl->vsync_time = ktime_get();
if (vctrl->wait_vsync_cnt) {
complete_all(&vctrl->vsync_comp);
vctrl->wait_vsync_cnt = 0;
}
spin_unlock(&vctrl->spin_lock);
}
/*
* mdp4_dmap_done_dsi_video: called from isr
*/
void mdp4_dmap_done_dsi_video(int cndx)
{
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
if (pipe == NULL)
return;
spin_lock(&vctrl->spin_lock);
vsync_irq_disable(INTR_DMA_P_DONE, MDP_DMAP_TERM);
if (vctrl->blt_change) {
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_dmap_xy(pipe);
vctrl->blt_change = 0;
}
complete_all(&vctrl->dmap_comp);
mdp4_overlay_dma_commit(cndx);
spin_unlock(&vctrl->spin_lock);
}
/*
* mdp4_overlay0_done_dsi: called from isr
*/
void mdp4_overlay0_done_dsi_video(int cndx)
{
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
if (pipe == NULL)
return;
spin_lock(&vctrl->spin_lock);
vsync_irq_disable(INTR_OVERLAY0_DONE, MDP_OVERLAY0_TERM);
vctrl->ov_done++;
complete_all(&vctrl->ov_comp);
if (pipe->ov_blt_addr == 0) {
spin_unlock(&vctrl->spin_lock);
return;
}
mdp4_dsi_video_blt_dmap_update(pipe);
pipe->dmap_cnt++;
spin_unlock(&vctrl->spin_lock);
}
/*
* make sure the MIPI_DSI_WRITEBACK_SIZE defined at boardfile
* has enough space h * w * 3 * 2
*/
static void mdp4_dsi_video_do_blt(struct msm_fb_data_type *mfd, int enable)
{
unsigned long flag;
int cndx = 0;
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
long long vtime;
u32 mode, ctrl;
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
mode = (dbg_force_ov0_blt & 0x0f) ?
(dbg_force_ov0_blt & 0x0f) : vctrl->blt_mode;
ctrl = (dbg_force_ov0_blt >> 4) ?
(dbg_force_ov0_blt >> 4) : vctrl->blt_ctrl;
pr_debug("%s: mode=%d, enable=%d ov_blt_addr=%x\n",
__func__, mode, enable, (int)pipe->ov_blt_addr);
if ((mode == MDP4_OVERLAY_MODE_BLT_ALWAYS_OFF) &&
!pipe->ov_blt_addr)
return;
else if ((mode == MDP4_OVERLAY_MODE_BLT_ALWAYS_ON) &&
pipe->ov_blt_addr)
return;
else if (enable && pipe->ov_blt_addr)
return;
else if (!enable && !pipe->ov_blt_addr)
return;
if (pipe->ov_blt_addr == 0) {
mdp4_allocate_writeback_buf(mfd, MDP4_MIXER0);
if (mfd->ov0_wb_buf->write_addr == 0) {
pr_warning("%s: no blt_base assigned\n", __func__);
return;
}
}
pr_debug("%s: mode=%d, enable=%d ov_blt_addr=%x\n",
__func__, mode, enable, (int)pipe->ov_blt_addr);
spin_lock_irqsave(&vctrl->spin_lock, flag);
if (pipe->ov_blt_addr == 0) {
pipe->ov_blt_addr = mfd->ov0_wb_buf->write_addr;
pipe->dma_blt_addr = mfd->ov0_wb_buf->read_addr;
pipe->ov_cnt = 0;
pipe->dmap_cnt = 0;
vctrl->ov_koff = 0;
vctrl->ov_done = 0;
vctrl->blt_free = 0;
mdp4_stat.blt_dsi_video++;
} else {
pipe->ov_blt_addr = 0;
pipe->dma_blt_addr = 0;
vctrl->blt_free = 4; /* 4 commits to free wb buf */
}
spin_unlock_irqrestore(&vctrl->spin_lock, flag);
if (ctrl == MDP4_OVERLAY_BLT_SWITCH_TG_ON) {
spin_lock_irqsave(&vctrl->spin_lock, flag);
if (!dsi_video_enabled) {
pr_debug("%s: blt switched not in ISR dsi_video_enabled=%d\n",
__func__, dsi_video_enabled);
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_dmap_xy(pipe);
} else {
pr_debug("%s: blt switched in ISR dsi_video_enabled=%d\n",
__func__, dsi_video_enabled);
vctrl->blt_change++;
}
spin_unlock_irqrestore(&vctrl->spin_lock, flag);
if (dsi_video_enabled)
mdp4_dsi_video_wait4dmap_done(0);
} else if (ctrl == MDP4_OVERLAY_BLT_SWITCH_TG_OFF) {
pr_debug("%s: blt switched by turning TG off\n", __func__);
if (dsi_video_enabled) {
mdp4_dsi_video_wait4vsync(0, &vtime);
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 0);
mdp4_dsi_video_wait4dmap_done(0);
}
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_dmap_xy(pipe);
if (dsi_video_enabled) {
/*
* need wait for more than 1 ms to
* make sure dsi lanes' fifo is empty and
* lanes in stop state befroe reset
* controller
*/
usleep(2000);
mipi_dsi_sw_reset();
MDP_OUTP(MDP_BASE + DSI_VIDEO_BASE, 1);
}
} else if (ctrl == MDP4_OVERLAY_BLT_SWITCH_POLL) {
pr_debug("%s: blt switched by polling mdp status\n", __func__);
if (dsi_video_enabled)
while (inpdw(MDP_BASE + 0x0018) & 0x05)
cpu_relax();
mdp4_overlayproc_cfg(pipe);
mdp4_overlay_dmap_xy(pipe);
} else
pr_err("%s: ctrl=%d is not supported\n", __func__, ctrl);
}
void mdp4_dsi_video_overlay_blt(struct msm_fb_data_type *mfd,
struct msmfb_overlay_blt *req)
{
mdp4_dsi_video_do_blt(mfd, req->enable);
}
void mdp4_dsi_video_blt_start(struct msm_fb_data_type *mfd)
{
mdp4_dsi_video_do_blt(mfd, 1);
}
void mdp4_dsi_video_blt_stop(struct msm_fb_data_type *mfd)
{
mdp4_dsi_video_do_blt(mfd, 0);
}
void mdp4_dsi_video_overlay(struct msm_fb_data_type *mfd)
{
struct fb_info *fbi = mfd->fbi;
uint8 *buf;
unsigned int buf_offset;
int bpp;
int cnt, cndx = 0;
struct vsycn_ctrl *vctrl;
struct mdp4_overlay_pipe *pipe;
mutex_lock(&mfd->dma->ov_mutex);
vctrl = &vsync_ctrl_db[cndx];
pipe = vctrl->base_pipe;
if (!pipe || !mfd->panel_power_on) {
mutex_unlock(&mfd->dma->ov_mutex);
return;
}
pr_debug("%s: cpu=%d pid=%d\n", __func__,
smp_processor_id(), current->pid);
if (pipe->pipe_type == OVERLAY_TYPE_RGB) {
bpp = fbi->var.bits_per_pixel / 8;
buf = (uint8 *) fbi->fix.smem_start;
buf_offset = calc_fb_offset(mfd, fbi, bpp);
if (mfd->display_iova)
pipe->srcp0_addr = mfd->display_iova + buf_offset;
else
pipe->srcp0_addr = (uint32)(buf + buf_offset);
mdp4_dsi_video_pipe_queue(0, pipe);
}
mdp4_overlay_mdp_perf_upd(mfd, 1);
cnt = mdp4_dsi_video_pipe_commit(cndx, 0);
if (cnt) {
if (pipe->ov_blt_addr)
mdp4_dsi_video_wait4ov(cndx);
else
mdp4_dsi_video_wait4dmap(cndx);
}
mdp4_overlay_mdp_perf_upd(mfd, 0);
mutex_unlock(&mfd->dma->ov_mutex);
}