static int gsc_m2m_release(struct file *file)
{
struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
struct gsc_dev *gsc = ctx->gsc_dev;
gsc_dbg("pid: %d, state: 0x%lx, refcnt= %d",
task_pid_nr(current), gsc->state, gsc->m2m.refcnt);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
gsc_ctrls_delete(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
if (--gsc->m2m.refcnt <= 0)
clear_bit(ST_M2M_OPEN, &gsc->state);
/* This is unnormal case */
if (gsc->protected_content) {
int id = gsc->id + 3;
gsc_err("DRM should be disabled before device close");
exynos_smc(SMC_PROTECTION_SET, 0, id, 0);
gsc_set_protected_content(gsc, false);
}
kfree(ctx);
return 0;
}
static int gsc_m2m_release(struct file *file)
{
struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
struct gsc_dev *gsc = ctx->gsc_dev;
gsc_dbg("pid: %d, state: 0x%lx, refcnt= %d",
task_pid_nr(current), gsc->state, gsc->m2m.refcnt);
/* if we didn't properly sequence with the secure side to turn off
* content protection, we may be left in a very bad state and the
* only way to recover this reliably is to reboot.
*/
BUG_ON(gsc->protected_content);
kfree(ctx->m2m_ctx->cap_q_ctx.q.name);
kfree(ctx->m2m_ctx->out_q_ctx.q.name);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
gsc_ctrls_delete(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
if (--gsc->m2m.refcnt <= 0)
clear_bit(ST_M2M_OPEN, &gsc->state);
kfree(ctx);
return 0;
}
static int gsc_capture_close(struct file *file)
{
struct gsc_dev *gsc = video_drvdata(file);
struct vb2_queue *q = &gsc->cap.vbq;
int ret = 0;
gsc_dbg("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
if (q->streaming)
gsc_capture_stop_streaming(q);
if (--gsc->cap.refcnt == 0) {
clear_bit(ST_CAPT_OPEN, &gsc->state);
gsc_dbg("G-Scaler h/w disable control");
clear_bit(ST_CAPT_RUN, &gsc->state);
vb2_queue_release(&gsc->cap.vbq);
gsc_ctrls_delete(gsc->cap.ctx);
ret = gsc_clk_disable_for_wb(gsc);
if (ret)
return ret;
}
pm_runtime_put_sync(&gsc->pdev->dev);
return v4l2_fh_release(file);
}
static int gsc_m2m_release(struct file *file)
{
struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
struct gsc_dev *gsc = ctx->gsc_dev;
gsc_dbg("pid: %d, state: 0x%lx, refcnt= %d",
task_pid_nr(current), gsc->state, gsc->m2m.refcnt);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
gsc_ctrls_delete(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
if (--gsc->m2m.refcnt <= 0)
clear_bit(ST_M2M_OPEN, &gsc->state);
kfree(ctx);
return 0;
}
static int gsc_capture_close(struct file *file)
{
struct gsc_dev *gsc = video_drvdata(file);
gsc_dbg("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
if (--gsc->cap.refcnt == 0) {
clear_bit(ST_CAPT_OPEN, &gsc->state);
gsc_dbg("G-Scaler h/w disable control");
gsc_hw_enable_control(gsc, false);
clear_bit(ST_CAPT_STREAM, &gsc->state);
gsc_cap_pipeline_shutdown(gsc);
}
if (gsc->cap.refcnt == 0) {
vb2_queue_release(&gsc->cap.vbq);
gsc_ctrls_delete(gsc->cap.ctx);
}
pm_runtime_put_sync(&gsc->pdev->dev);
return v4l2_fh_release(file);
}
static int gsc_m2m_open(struct file *file)
{
struct gsc_dev *gsc = video_drvdata(file);
struct gsc_ctx *ctx = NULL;
int ret;
pr_debug("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
if (mutex_lock_interruptible(&gsc->lock))
return -ERESTARTSYS;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx) {
ret = -ENOMEM;
goto unlock;
}
v4l2_fh_init(&ctx->fh, gsc->m2m.vfd);
ret = gsc_ctrls_create(ctx);
if (ret)
goto error_fh;
/* Use separate control handler per file handle */
ctx->fh.ctrl_handler = &ctx->ctrl_handler;
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
ctx->gsc_dev = gsc;
/* Default color format */
ctx->s_frame.fmt = get_format(0);
ctx->d_frame.fmt = get_format(0);
/* Setup the device context for mem2mem mode. */
ctx->state = GSC_CTX_M2M;
ctx->flags = 0;
ctx->in_path = GSC_DMA;
ctx->out_path = GSC_DMA;
ctx->m2m_ctx = v4l2_m2m_ctx_init(gsc->m2m.m2m_dev, ctx, queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
pr_err("Failed to initialize m2m context");
ret = PTR_ERR(ctx->m2m_ctx);
goto error_ctrls;
}
if (gsc->m2m.refcnt++ == 0)
set_bit(ST_M2M_OPEN, &gsc->state);
pr_debug("gsc m2m driver is opened, ctx(0x%p)", ctx);
mutex_unlock(&gsc->lock);
return 0;
error_ctrls:
gsc_ctrls_delete(ctx);
v4l2_fh_del(&ctx->fh);
error_fh:
v4l2_fh_exit(&ctx->fh);
kfree(ctx);
unlock:
mutex_unlock(&gsc->lock);
return ret;
}
