| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1400247235-31434-42-git-send-email-prabhakar.csengg@gmail.com>
Date: Fri, 16 May 2014 19:03:45 +0530
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: LMML <linux-media@...r.kernel.org>,
Hans Verkuil <hans.verkuil@...co.com>
Cc: DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
LKML <linux-kernel@...r.kernel.org>,
"Lad, Prabhakar" <prabhakar.csengg@...il.com>
Subject: [PATCH v5 39/49] media: davinic: vpif_capture: drop started member from struct common_obj
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
the started member was indicating whether streaming was started
or not, this can be determined by vb2 offering, this patch replaces
the started member from struct common_obj with appropriate vb2 calls.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
---
drivers/media/platform/davinci/vpif_capture.c | 36 ++++++++++---------------
drivers/media/platform/davinci/vpif_capture.h | 2 --
2 files changed, 14 insertions(+), 24 deletions(-)
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 6b66f55..b898779 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -73,6 +73,9 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode);
static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = { {1, 1} };
+/* Is set to 1 in case of SDTV formats, 2 in case of HDTV formats. */
+static int ycmux_mode;
+
static inline struct vpif_cap_buffer *to_vpif_buffer(struct vb2_buffer *vb)
{
return container_of(vb, struct vpif_cap_buffer, vb);
@@ -194,9 +197,8 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
spin_lock_irqsave(&common->irqlock, flags);
- /* Initialize field_id and started member */
+ /* Initialize field_id */
ch->field_id = 0;
- common->started = 1;
/* configure 1 or 2 channel mode */
if (vpif_config_data->setup_input_channel_mode) {
@@ -216,13 +218,12 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
/* Call vpif_set_params function to set the parameters and addresses */
ret = vpif_set_video_params(vpif, ch->channel_id);
-
if (ret < 0) {
vpif_dbg(1, debug, "can't set video params\n");
goto err;
}
- common->started = ret;
+ ycmux_mode = ret;
vpif_config_addr(ch, ret);
/* Get the next frame from the buffer queue */
@@ -252,7 +253,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
enable_channel0(1);
}
if (VPIF_CHANNEL1_VIDEO == ch->channel_id ||
- common->started == 2) {
+ ycmux_mode == 2) {
channel1_intr_assert();
channel1_intr_enable(1);
enable_channel1(1);
@@ -291,11 +292,12 @@ static void vpif_stop_streaming(struct vb2_queue *vq)
channel0_intr_enable(0);
}
if (VPIF_CHANNEL1_VIDEO == ch->channel_id ||
- 2 == common->started) {
+ ycmux_mode == 2) {
enable_channel1(0);
channel1_intr_enable(0);
}
- common->started = 0;
+
+ ycmux_mode = 0;
ret = v4l2_subdev_call(ch->sd, video, s_stream, 0);
if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
@@ -404,9 +406,6 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
common = &ch->common[i];
/* skip If streaming is not started in this channel */
- if (0 == common->started)
- continue;
-
/* Check the field format */
if (1 == ch->vpifparams.std_info.frm_fmt) {
/* Progressive mode */
@@ -910,10 +909,8 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
vpif_dbg(2, debug, "vpif_s_std\n");
- if (common->started) {
- vpif_err("streaming in progress\n");
+ if (vb2_is_busy(&common->buffer_queue))
return -EBUSY;
- }
/* Call encoder subdevice function to set the standard */
ch->video.stdid = std_id;
@@ -998,10 +995,8 @@ static int vpif_s_input(struct file *file, void *priv, unsigned int index)
if (index >= chan_cfg->input_count)
return -EINVAL;
- if (common->started) {
- vpif_err("Streaming in progress\n");
+ if (vb2_is_busy(&common->buffer_queue))
return -EBUSY;
- }
return vpif_set_input(config, ch, index);
}
@@ -1092,11 +1087,8 @@ static int vpif_s_fmt_vid_cap(struct file *file, void *priv,
vpif_dbg(2, debug, "%s\n", __func__);
- /* If streaming is started, return error */
- if (common->started) {
- vpif_dbg(1, debug, "Streaming is started\n");
+ if (vb2_is_busy(&common->buffer_queue))
return -EBUSY;
- }
pixfmt = &fmt->fmt.pix;
/* Check for valid field format */
@@ -1707,7 +1699,7 @@ static int vpif_suspend(struct device *dev)
channel0_intr_enable(0);
}
if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
- common->started == 2) {
+ ycmux_mode == 2) {
enable_channel1(0);
channel1_intr_enable(0);
}
@@ -1739,7 +1731,7 @@ static int vpif_resume(struct device *dev)
channel0_intr_enable(1);
}
if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
- common->started == 2) {
+ ycmux_mode == 2) {
enable_channel1(1);
channel1_intr_enable(1);
}
diff --git a/drivers/media/platform/davinci/vpif_capture.h b/drivers/media/platform/davinci/vpif_capture.h
index 9b7dd06..4960504 100644
--- a/drivers/media/platform/davinci/vpif_capture.h
+++ b/drivers/media/platform/davinci/vpif_capture.h
@@ -77,8 +77,6 @@ struct common_obj {
struct mutex lock;
/* number of users performing IO */
u32 io_usrs;
- /* Indicates whether streaming started */
- u8 started;
/* Function pointer to set the addresses */
void (*set_addr) (unsigned long, unsigned long, unsigned long,
unsigned long);
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists