static int mfc_open(struct inode *inode, struct file *file)
{
struct mfc_inst_ctx *mfc_ctx;
int ret;
enum mfc_ret_code retcode;
int inst_id;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
struct mfc_alloc_buffer *alloc;
#endif
/* prevent invalid reference */
file->private_data = NULL;
mutex_lock(&mfcdev->lock);
#if defined(CONFIG_USE_MFC_CMA) && defined(CONFIG_MACH_MEHMET)
if (atomic_read(&mfcdev->inst_cnt) == 0) {
size_t size = 0x02800000;
mfcdev->cma_vaddr = dma_alloc_coherent(mfcdev->device, size,
&mfcdev->cma_dma_addr, 0);
if (!mfcdev->cma_vaddr) {
printk(KERN_ERR "%s: dma_alloc_coherent returns "
"-ENOMEM\n", __func__);
mutex_unlock(&mfcdev->lock);
return -ENOMEM;
}
printk(KERN_INFO "%s[%d] size 0x%x, vaddr 0x%x, base 0x%x\n",
__func__, __LINE__, (int)size,
(int)mfcdev->cma_vaddr,
(int)mfcdev->cma_dma_addr);
}
#endif
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (mfcdev->drm_playback) {
mfc_err("DRM playback was activated, cannot open no more instance\n");
ret = -EINVAL;
goto err_drm_playback;
}
#endif
if (!mfcdev->fw.state) {
if (mfcdev->fw.requesting) {
printk(KERN_INFO "MFC F/W request is on-going, try again\n");
ret = -ENODEV;
goto err_fw_state;
}
printk(KERN_INFO "MFC F/W is not existing, requesting...\n");
ret = request_firmware(&mfcdev->fw.info, MFC_FW_NAME, mfcdev->device);
if (ret < 0) {
printk(KERN_INFO "failed to copy MFC F/W during open\n");
ret = -ENODEV;
goto err_fw_state;
}
if (soc_is_exynos4212() || soc_is_exynos4412()) {
mfcdev->fw.state = mfc_load_firmware(mfcdev->fw.info->data, mfcdev->fw.info->size);
if (!mfcdev->fw.state) {
printk(KERN_ERR "failed to load MFC F/W, MFC will not working\n");
ret = -ENODEV;
goto err_fw_state;
} else {
printk(KERN_INFO "MFC F/W loaded successfully (size: %d)\n", mfcdev->fw.info->size);
}
}
}
if (atomic_read(&mfcdev->inst_cnt) == 0) {
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (check_magic(mfcdev->drm_info.addr)) {
mfc_dbg("DRM playback starting\n");
clear_magic(mfcdev->drm_info.addr);
mfcdev->drm_playback = 1;
mfc_set_buf_alloc_scheme(MBS_FIRST_FIT);
} else {
/* reload F/W for first instance again */
if (soc_is_exynos4210()) {
mfcdev->fw.state = mfc_load_firmware(mfcdev->fw.info->data, mfcdev->fw.info->size);
if (!mfcdev->fw.state) {
printk(KERN_ERR "failed to reload MFC F/W, MFC will not working\n");
ret = -ENODEV;
goto err_fw_state;
} else {
printk(KERN_INFO "MFC F/W reloaded successfully (size: %d)\n", mfcdev->fw.info->size);
}
}
}
#else
/* reload F/W for first instance again */
if (soc_is_exynos4210()) {
mfcdev->fw.state = mfc_load_firmware(mfcdev->fw.info->data, mfcdev->fw.info->size);
if (!mfcdev->fw.state) {
printk(KERN_ERR "failed to reload MFC F/W, MFC will not working\n");
ret = -ENODEV;
goto err_fw_state;
} else {
printk(KERN_INFO "MFC F/W reloaded successfully (size: %d)\n", mfcdev->fw.info->size);
}
}
#endif
ret = mfc_power_on();
if (ret < 0) {
mfc_err("power enable failed\n");
goto err_pwr_enable;
}
#ifndef CONFIG_PM_RUNTIME
#ifdef SYSMMU_MFC_ON
mfc_clock_on();
s5p_sysmmu_enable(mfcdev->device);
#ifdef CONFIG_VIDEO_MFC_VCM_UMP
vcm_set_pgtable_base(VCM_DEV_MFC);
#else /* CONFIG_S5P_VMEM or kernel virtual memory allocator */
s5p_sysmmu_set_tablebase_pgd(mfcdev->device,
__pa(swapper_pg_dir));
/*
* RMVME: the power-gating work really (on <-> off),
* all TBL entry was invalidated already when the power off
*/
s5p_sysmmu_tlb_invalidate(mfcdev->device, SYSMMU_MFC_R);
#endif
mfc_clock_off();
#endif
#endif
/* MFC hardware initialization */
retcode = mfc_start(mfcdev);
if (retcode != MFC_OK) {
mfc_err("MFC H/W init failed: %d\n", retcode);
ret = -ENODEV;
goto err_start_hw;
}
}
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
else {
if (check_magic(mfcdev->drm_info.addr)) {
clear_magic(mfcdev->drm_info.addr);
mfc_err("MFC instances are not cleared before DRM playback!\n");
ret = -EINVAL;
goto err_drm_start;
}
}
#endif
if (atomic_read(&mfcdev->inst_cnt) >= MFC_MAX_INSTANCE_NUM) {
mfc_err("exceed max instance number, too many instance opened already\n");
ret = -EINVAL;
goto err_inst_cnt;
}
inst_id = get_free_inst_id(mfcdev);
if (inst_id < 0) {
mfc_err("failed to get instance ID\n");
ret = -EINVAL;
goto err_inst_id;
}
mfc_ctx = mfc_create_inst();
if (!mfc_ctx) {
mfc_err("failed to create instance context\n");
ret = -ENOMEM;
goto err_inst_ctx;
}
atomic_inc(&mfcdev->inst_cnt);
mfcdev->inst_ctx[inst_id] = mfc_ctx;
mfc_ctx->id = inst_id;
mfc_ctx->dev = mfcdev;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (mfcdev->drm_playback) {
alloc = _mfc_alloc_buf(mfc_ctx, MFC_CTX_SIZE_L, ALIGN_2KB, MBT_CTX | PORT_A);
if (alloc == NULL) {
mfc_err("failed to alloc context buffer\n");
ret = -ENOMEM;
goto err_drm_ctx;
}
mfc_ctx->ctxbufofs = mfc_mem_base_ofs(alloc->real) >> 11;
mfc_ctx->ctxbufsize = alloc->size;
memset((void *)alloc->addr, 0, alloc->size);
mfc_mem_cache_clean((void *)alloc->addr, alloc->size);
}
static int mfc_open(struct inode *inode, struct file *file)
{
struct mfc_inst_ctx *mfc_ctx;
int ret;
enum mfc_ret_code retcode;
int inst_id;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
struct mfc_alloc_buffer *alloc;
#endif
/* prevent invalid reference */
file->private_data = NULL;
mutex_lock(&mfcdev->lock);
#if SUPPORT_SLICE_ENCODING
mfcdev->frame_working_flag = 1;
mfcdev->frame_sys = 0;
#endif
if (!mfcdev->fw.state) {
if (mfcdev->fw.requesting) {
printk(KERN_INFO "MFC F/W request is on-going, try again\n");
ret = -ENODEV;
goto err_fw_state;
}
printk(KERN_INFO "MFC F/W is not existing, requesting...\n");
ret = request_firmware(&mfcdev->fw.info, MFC_FW_NAME, mfcdev->device);
if (ret < 0) {
printk(KERN_INFO "failed to copy MFC F/W during open\n");
ret = -ENODEV;
goto err_fw_state;
}
if (soc_is_exynos4212() || soc_is_exynos4412()) {
mfcdev->fw.state = mfc_load_firmware(mfcdev->fw.info->data, mfcdev->fw.info->size);
if (!mfcdev->fw.state) {
printk(KERN_ERR "failed to load MFC F/W, MFC will not working\n");
ret = -ENODEV;
goto err_fw_state;
} else {
printk(KERN_INFO "MFC F/W loaded successfully (size: %d)\n", mfcdev->fw.info->size);
}
}
}
if (atomic_read(&mfcdev->inst_cnt) == 0) {
/* reload F/W for first instance again */
if (soc_is_exynos4210()) {
mfcdev->fw.state = mfc_load_firmware(mfcdev->fw.info->data, mfcdev->fw.info->size);
if (!mfcdev->fw.state) {
printk(KERN_ERR "failed to reload MFC F/W, MFC will not working\n");
ret = -ENODEV;
goto err_fw_state;
} else {
printk(KERN_INFO "MFC F/W reloaded successfully (size: %d)\n", mfcdev->fw.info->size);
}
}
#if defined(CONFIG_BUSFREQ_OPP) || defined(CONFIG_BUSFREQ_LOCK_WRAPPER)
dev_lock(mfcdev->bus_dev, mfcdev->device, 133133);
#endif
#ifdef CONFIG_BUSFREQ
pm_qos_add_request(&bus_qos_pm_qos_req, PM_QOS_BUS_QOS, 1);
#endif
ret = mfc_power_on();
if (ret < 0) {
mfc_err("power enable failed\n");
goto err_pwr_enable;
}
#ifndef CONFIG_PM_RUNTIME
#ifdef SYSMMU_MFC_ON
mfc_clock_on(mfcdev);
s5p_sysmmu_enable(mfcdev->device);
#ifdef CONFIG_VIDEO_MFC_VCM_UMP
vcm_set_pgtable_base(VCM_DEV_MFC);
#else /* CONFIG_S5P_VMEM or kernel virtual memory allocator */
s5p_sysmmu_set_tablebase_pgd(mfcdev->device,
__pa(swapper_pg_dir));
/*
* RMVME: the power-gating work really (on <-> off),
* all TBL entry was invalidated already when the power off
*/
s5p_sysmmu_tlb_invalidate(mfcdev->device, SYSMMU_MFC_R);
#endif
mfc_clock_off(mfcdev);
#endif
#endif
/* MFC hardware initialization */
retcode = mfc_start(mfcdev);
if (retcode != MFC_OK) {
mfc_err("MFC H/W init failed: %d\n", retcode);
ret = -ENODEV;
goto err_start_hw;
}
}
if (atomic_read(&mfcdev->inst_cnt) >= MFC_MAX_INSTANCE_NUM) {
mfc_err("exceed max instance number, too many instance opened already\n");
ret = -EINVAL;
goto err_inst_cnt;
}
inst_id = get_free_inst_id(mfcdev);
if (inst_id < 0) {
mfc_err("failed to get instance ID\n");
ret = -EINVAL;
goto err_inst_id;
}
mfc_ctx = mfc_create_inst();
if (!mfc_ctx) {
mfc_err("failed to create instance context\n");
ret = -ENOMEM;
goto err_inst_ctx;
}
atomic_inc(&mfcdev->inst_cnt);
mfcdev->inst_ctx[inst_id] = mfc_ctx;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (check_magic(mfcdev->drm_info.addr) >= 0) {
mfc_info("DRM instance starting\n");
clear_magic(mfcdev->drm_info.addr + check_magic(mfcdev->drm_info.addr));
mfc_ctx->drm_flag = 1;
mfc_set_buf_alloc_scheme(MBS_FIRST_FIT);
} else {
mfc_ctx->drm_flag = 0;
}
#endif
mfc_ctx->id = inst_id;
mfc_ctx->dev = mfcdev;
#ifdef CONFIG_EXYNOS_CONTENT_PATH_PROTECTION
if (mfc_ctx->drm_flag) {
alloc = _mfc_alloc_buf(mfc_ctx, MFC_CTX_SIZE_L, ALIGN_2KB, MBT_CTX | PORT_A);
if (alloc == NULL) {
mfc_err("failed to alloc context buffer\n");
ret = -ENOMEM;
goto err_drm_ctx;
}
mfc_ctx->ctxbufofs = mfc_mem_base_ofs(alloc->real) >> 11;
mfc_ctx->ctxbufsize = alloc->size;
memset((void *)alloc->addr, 0, alloc->size);
mfc_mem_cache_clean((void *)alloc->addr, alloc->size);
}