From 066f7867207b8e13d2062069e0ba7cb3a5bf04b2 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 24 Mar 2011 12:51:07 -0300 Subject: [PATCH] [media] V4L: sh_mobile_ceu_camera: implement .stop_streaming() The .stop_streaming() videobuf2 operation has to be implemented to guarantee, that video buffers are not written to after a STREAMOFF. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/sh_mobile_ceu_camera.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index 134e86bf6d97..e6839bb70acc 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -427,6 +427,26 @@ static int sh_mobile_ceu_videobuf_init(struct vb2_buffer *vb) return 0; } +static int sh_mobile_ceu_stop_streaming(struct vb2_queue *q) +{ + struct soc_camera_device *icd = container_of(q, struct soc_camera_device, vb2_vidq); + struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); + struct sh_mobile_ceu_dev *pcdev = ici->priv; + struct list_head *buf_head, *tmp; + unsigned long flags; + + spin_lock_irqsave(&pcdev->lock, flags); + + pcdev->active = NULL; + + list_for_each_safe(buf_head, tmp, &pcdev->capture) + list_del_init(buf_head); + + spin_unlock_irqrestore(&pcdev->lock, flags); + + return sh_mobile_ceu_soft_reset(pcdev); +} + static struct vb2_ops sh_mobile_ceu_videobuf_ops = { .queue_setup = sh_mobile_ceu_videobuf_setup, .buf_prepare = sh_mobile_ceu_videobuf_prepare, @@ -435,6 +455,7 @@ static struct vb2_ops sh_mobile_ceu_videobuf_ops = { .buf_init = sh_mobile_ceu_videobuf_init, .wait_prepare = soc_camera_unlock, .wait_finish = soc_camera_lock, + .stop_streaming = sh_mobile_ceu_stop_streaming, }; static irqreturn_t sh_mobile_ceu_irq(int irq, void *data) -- 2.30.2