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[media] marvell-ccic: use internal variable replace global frame stats variable

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This patch replaces the global frame stats variables by using
internal variables in mcam_camera structure.

Signed-off-by: Albert Wang <twang13@marvell.com>
Signed-off-by: Libin Yang <lbyang@marvell.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Libin Yang 2012-12-15 05:57:50 -03:00 committed by Mauro Carvalho Chehab
parent a4bb6f353e
commit f698957aea
2 changed files with 22 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/media/platform/marvell-ccic/mcam-core.c
View File

@ -30,13 +30,6 @@
#include "mcam-core.h"
/*
* Basic frame stats - to be deleted shortly
*/
static int frames;
static int singles;
static int delivered;
#ifdef MCAM_MODE_VMALLOC
/*
* Internal DMA buffer management. Since the controller cannot do S/G I/O,
@ -367,10 +360,10 @@ static void mcam_frame_tasklet(unsigned long data)
if (!test_bit(bufno, &cam->flags))
continue;
if (list_empty(&cam->buffers)) {
singles++;
cam->frame_state.singles++;
break; /* Leave it valid, hope for better later */
}
delivered++;
cam->frame_state.delivered++;
clear_bit(bufno, &cam->flags);
buf = list_first_entry(&cam->buffers, struct mcam_vb_buffer,
queue);
@ -452,7 +445,7 @@ static void mcam_set_contig_buffer(struct mcam_camera *cam, int frame)
mcam_reg_write(cam, frame == 0 ? REG_Y0BAR : REG_Y1BAR,
vb2_dma_contig_plane_dma_addr(&buf->vb_buf, 0));
set_bit(CF_SINGLE_BUFFER, &cam->flags);
singles++;
cam->frame_state.singles++;
return;
}
/*
@ -485,7 +478,7 @@ static void mcam_dma_contig_done(struct mcam_camera *cam, int frame)
struct mcam_vb_buffer *buf = cam->vb_bufs[frame];
if (!test_bit(CF_SINGLE_BUFFER, &cam->flags)) {
delivered++;
cam->frame_state.delivered++;
mcam_buffer_done(cam, frame, &buf->vb_buf);
}
mcam_set_contig_buffer(cam, frame);
@ -578,13 +571,13 @@ static void mcam_dma_sg_done(struct mcam_camera *cam, int frame)
*/
} else {
set_bit(CF_SG_RESTART, &cam->flags);
singles++;
cam->frame_state.singles++;
cam->vb_bufs[0] = NULL;
}
/*
* Now we can give the completed frame back to user space.
*/
delivered++;
cam->frame_state.delivered++;
mcam_buffer_done(cam, frame, &buf->vb_buf);
}
@ -1545,7 +1538,9 @@ static int mcam_v4l_open(struct file *filp)
filp->private_data = cam;
frames = singles = delivered = 0;
cam->frame_state.frames = 0;
cam->frame_state.singles = 0;
cam->frame_state.delivered = 0;
mutex_lock(&cam->s_mutex);
if (cam->users == 0) {
ret = mcam_setup_vb2(cam);
@ -1566,8 +1561,9 @@ static int mcam_v4l_release(struct file *filp)
{
struct mcam_camera *cam = filp->private_data;
cam_dbg(cam, "Release, %d frames, %d singles, %d delivered\n", frames,
singles, delivered);
cam_dbg(cam, "Release, %d frames, %d singles, %d delivered\n",
cam->frame_state.frames, cam->frame_state.singles,
cam->frame_state.delivered);
mutex_lock(&cam->s_mutex);
(cam->users)--;
if (cam->users == 0) {
@ -1660,7 +1656,7 @@ static void mcam_frame_complete(struct mcam_camera *cam, int frame)
clear_bit(CF_DMA_ACTIVE, &cam->flags);
cam->next_buf = frame;
cam->buf_seq[frame] = ++(cam->sequence);
frames++;
cam->frame_state.frames++;
/*
* "This should never happen"
*/

9
drivers/media/platform/marvell-ccic/mcam-core.h
View File

@ -73,6 +73,14 @@ static inline int mcam_buffer_mode_supported(enum mcam_buffer_mode mode)
}
}
/*
* Basic frame states
*/
struct mcam_frame_state {
unsigned int frames;
unsigned int singles;
unsigned int delivered;
};
/*
* A description of one of our devices.
@ -108,6 +116,7 @@ struct mcam_camera {
unsigned long flags; /* Buffer status, mainly (dev_lock) */
int users; /* How many open FDs */
struct mcam_frame_state frame_state; /* Frame state counter */
/*
* Subsystem structures.
*/