void g2d_sysmmu_on(struct g2d_global *g2d_dev)
{
g2d_clk_enable(g2d_dev);
s5p_sysmmu_enable(g2d_dev->dev,
(unsigned long)virt_to_phys((void *)init_mm.pgd));
g2d_clk_disable(g2d_dev);
}
void g2d_sysmmu_off(struct g2d_global *g2d_dev)
{
g2d_clk_enable(g2d_dev);
s5p_sysmmu_disable(g2d_dev->dev);
g2d_clk_disable(g2d_dev);
}
void g2d_sysmmu_off(struct g2d_global *g2d_dev)
{
g2d_clk_enable(g2d_dev);
sysmmu_off(SYSMMU_G2D);
g2d_clk_disable(g2d_dev);
}
static long g2d_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
g2d_params params;
int ret = -1;
struct g2d_dma_info dma_info;
switch(cmd) {
case G2D_GET_MEMORY :
ret = copy_to_user((unsigned int *)arg,
&(g2d_dev->reserved_mem.base), sizeof(g2d_dev->reserved_mem.base));
if (ret) {
FIMG2D_ERROR("error : copy_to_user\n");
return -EINVAL;
}
return 0;
case G2D_GET_MEMORY_SIZE :
ret = copy_to_user((unsigned int *)arg,
&(g2d_dev->reserved_mem.size), sizeof(g2d_dev->reserved_mem.size));
if (ret) {
FIMG2D_ERROR("error : copy_to_user\n");
return -EINVAL;
}
return 0;
case G2D_DMA_CACHE_CLEAN :
case G2D_DMA_CACHE_FLUSH :
mutex_lock(&g2d_dev->lock);
ret = copy_from_user(&dma_info, (struct g2d_dma_info *)arg, sizeof(dma_info));
if (ret) {
FIMG2D_ERROR("error : copy_from_user\n");
mutex_unlock(&g2d_dev->lock);
return -EINVAL;
}
if (dma_info.addr == 0) {
FIMG2D_ERROR("addr Null Error!!!\n");
mutex_unlock(&g2d_dev->lock);
return -EINVAL;
}
g2d_mem_cache_op(cmd, (void *)dma_info.addr, dma_info.size);
mutex_unlock(&g2d_dev->lock);
return 0;
case G2D_SYNC :
g2d_check_fifo_state_wait(g2d_dev);
ret = 0;
goto g2d_ioctl_done;
case G2D_RESET :
g2d_reset(g2d_dev);
FIMG2D_ERROR("G2D TimeOut Error\n");
ret = 0;
goto g2d_ioctl_done;
case G2D_BLIT:
if (atomic_read(&g2d_dev->ready_to_run) == 0)
goto g2d_ioctl_done2;
mutex_lock(&g2d_dev->lock);
g2d_clk_enable(g2d_dev);
if (copy_from_user(¶ms, (struct g2d_params *)arg, sizeof(g2d_params))) {
FIMG2D_ERROR("error : copy_from_user\n");
goto g2d_ioctl_done;
}
g2d_dev->irq_handled = 0;
atomic_set(&g2d_dev->in_use, 1);
if (atomic_read(&g2d_dev->ready_to_run) == 0)
goto g2d_ioctl_done;
if (!g2d_do_blit(g2d_dev, ¶ms)) {
g2d_dev->irq_handled = 1;
goto g2d_ioctl_done;
}
if (!(params.flag.render_mode & G2D_HYBRID_MODE)) {
if(!(file->f_flags & O_NONBLOCK)) {
if (!g2d_wait_for_finish(g2d_dev, ¶ms))
goto g2d_ioctl_done;
}
} else {
ret = 0;
goto g2d_ioctl_done2;
}
ret = 0;
break;
default :
goto g2d_ioctl_done2;
break;
}
g2d_ioctl_done :
g2d_clk_disable(g2d_dev);
mutex_unlock(&g2d_dev->lock);
atomic_set(&g2d_dev->in_use, 0);
g2d_ioctl_done2 :
return ret;
}