diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index c6dea6bc3225a835d8c1e212dbd802bf7769363d..34a01b209251efbc4fa9d1b36da0a17fed6acbc8 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -213,9 +213,7 @@ static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames,
return ret;
}
if (pEntry->compressed && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec1_init(pdev, pdev->type, pdev->release, buf);
- if (ret < 0)
- return ret;
+ pwc_dec1_init(pdev, buf);
}
pdev->cmd_len = 3;
@@ -281,9 +279,7 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames,
return ret;
if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec23_init(pdev, pdev->type, buf);
- if (ret < 0)
- return ret;
+ pwc_dec23_init(pdev, buf);
}
pdev->cmd_len = 13;
@@ -341,9 +337,7 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames,
return ret;
if (pChoose->bandlength > 0 && pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
- ret = pwc_dec23_init(pdev, pdev->type, buf);
- if (ret < 0)
- return ret;
+ pwc_dec23_init(pdev, buf);
}
pdev->cmd_len = 12;
@@ -368,7 +362,8 @@ int pwc_set_video_mode(struct pwc_device *pdev, int width, int height,
{
int ret, size;
- PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n", width, height, frames, pdev->pixfmt);
+ PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n",
+ width, height, frames, pdev->pixfmt);
size = pwc_get_size(pdev, width, height);
PWC_TRACE("decode_size = %d.\n", size);
diff --git a/drivers/media/video/pwc/pwc-dec1.c b/drivers/media/video/pwc/pwc-dec1.c
index be0e02cb487f1ff2cba5f32fbccd1826056eb93f..bac0d83fe11909b58b82f7d2e094c8dea7f006c4 100644
--- a/drivers/media/video/pwc/pwc-dec1.c
+++ b/drivers/media/video/pwc/pwc-dec1.c
@@ -22,19 +22,11 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include "pwc-dec1.h"
+#include "pwc.h"
-int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer)
+void pwc_dec1_init(struct pwc_device *pdev, void *buffer)
{
- struct pwc_dec1_private *pdec;
+ struct pwc_dec1_private *pdec = &pdev->dec1;
- if (pwc->decompress_data == NULL) {
- pdec = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
- if (pdec == NULL)
- return -ENOMEM;
- pwc->decompress_data = pdec;
- }
- pdec = pwc->decompress_data;
-
- return 0;
+ pdec->version = pdev->release;
}
diff --git a/drivers/media/video/pwc/pwc-dec1.h b/drivers/media/video/pwc/pwc-dec1.h
index a57d8601080babf0ca5ed403aef63220f900f2af..6e8f3c561c9bdd55af41771bff3c20161564f5ef 100644
--- a/drivers/media/video/pwc/pwc-dec1.h
+++ b/drivers/media/video/pwc/pwc-dec1.h
@@ -25,13 +25,15 @@
#ifndef PWC_DEC1_H
#define PWC_DEC1_H
-#include "pwc.h"
+#include <linux/mutex.h>
+
+struct pwc_device;
struct pwc_dec1_private
{
int version;
};
-int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer);
+void pwc_dec1_init(struct pwc_device *pdev, void *buffer);
#endif
diff --git a/drivers/media/video/pwc/pwc-dec23.c b/drivers/media/video/pwc/pwc-dec23.c
index 2c6709112b2f2c4d206e40701505658c73483a38..6d48c1f9068393ad8a32e4eff9a52335c862b578 100644
--- a/drivers/media/video/pwc/pwc-dec23.c
+++ b/drivers/media/video/pwc/pwc-dec23.c
@@ -294,22 +294,14 @@ static unsigned char pwc_crop_table[256 + 2*MAX_OUTER_CROP_VALUE];
/* If the type or the command change, we rebuild the lookup table */
-int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd)
+void pwc_dec23_init(struct pwc_device *pdev, unsigned char *cmd)
{
int flags, version, shift, i;
- struct pwc_dec23_private *pdec;
-
- if (pwc->decompress_data == NULL) {
- pdec = kmalloc(sizeof(struct pwc_dec23_private), GFP_KERNEL);
- if (pdec == NULL)
- return -ENOMEM;
- pwc->decompress_data = pdec;
- }
- pdec = pwc->decompress_data;
+ struct pwc_dec23_private *pdec = &pdev->dec23;
mutex_init(&pdec->lock);
- if (DEVICE_USE_CODEC3(type)) {
+ if (DEVICE_USE_CODEC3(pdev->type)) {
flags = cmd[2] & 0x18;
if (flags == 8)
pdec->nbits = 7; /* More bits, mean more bits to encode the stream, but better quality */
@@ -355,8 +347,6 @@ int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd)
for (i=0; i<MAX_OUTER_CROP_VALUE; i++)
pwc_crop_table[MAX_OUTER_CROP_VALUE+256+i] = 255;
#endif
-
- return 0;
}
/*
@@ -659,12 +649,12 @@ static void DecompressBand23(struct pwc_dec23_private *pdec,
* src: raw data
* dst: image output
*/
-void pwc_dec23_decompress(const struct pwc_device *pwc,
+void pwc_dec23_decompress(struct pwc_device *pdev,
const void *src,
void *dst)
{
int bandlines_left, bytes_per_block;
- struct pwc_dec23_private *pdec = pwc->decompress_data;
+ struct pwc_dec23_private *pdec = &pdev->dec23;
/* YUV420P image format */
unsigned char *pout_planar_y;
@@ -674,23 +664,22 @@ void pwc_dec23_decompress(const struct pwc_device *pwc,
mutex_lock(&pdec->lock);
- bandlines_left = pwc->height / 4;
- bytes_per_block = pwc->width * 4;
- plane_size = pwc->height * pwc->width;
+ bandlines_left = pdev->height / 4;
+ bytes_per_block = pdev->width * 4;
+ plane_size = pdev->height * pdev->width;
pout_planar_y = dst;
pout_planar_u = dst + plane_size;
pout_planar_v = dst + plane_size + plane_size / 4;
while (bandlines_left--) {
- DecompressBand23(pwc->decompress_data,
- src,
+ DecompressBand23(pdec, src,
pout_planar_y, pout_planar_u, pout_planar_v,
- pwc->width, pwc->width);
- src += pwc->vbandlength;
+ pdev->width, pdev->width);
+ src += pdev->vbandlength;
pout_planar_y += bytes_per_block;
- pout_planar_u += pwc->width;
- pout_planar_v += pwc->width;
+ pout_planar_u += pdev->width;
+ pout_planar_v += pdev->width;
}
mutex_unlock(&pdec->lock);
}
diff --git a/drivers/media/video/pwc/pwc-dec23.h b/drivers/media/video/pwc/pwc-dec23.h
index d64a3c281af6aa0d5fe03471c5cd03d16f010588..a29068ee428b536d8e2770c27e908bbc48c4c396 100644
--- a/drivers/media/video/pwc/pwc-dec23.h
+++ b/drivers/media/video/pwc/pwc-dec23.h
@@ -25,7 +25,7 @@
#ifndef PWC_DEC23_H
#define PWC_DEC23_H
-#include "pwc.h"
+struct pwc_device;
struct pwc_dec23_private
{
@@ -51,8 +51,8 @@ struct pwc_dec23_private
};
-int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd);
-void pwc_dec23_decompress(const struct pwc_device *pwc,
+void pwc_dec23_init(struct pwc_device *pdev, unsigned char *cmd);
+void pwc_dec23_decompress(struct pwc_device *pdev,
const void *src,
void *dst);
#endif
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index 5592068b2f926b320a10106f9509b1c3df00e785..250ad4c3e9d8e84720921aed1ec5abd9e1aafa44 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -603,14 +603,6 @@ static void pwc_video_release(struct v4l2_device *v)
if (device_hint[hint].pdev == pdev)
device_hint[hint].pdev = NULL;
- /* Free intermediate decompression buffer & tables */
- if (pdev->decompress_data != NULL) {
- PWC_DEBUG_MEMORY("Freeing decompression buffer at %p.\n",
- pdev->decompress_data);
- kfree(pdev->decompress_data);
- pdev->decompress_data = NULL;
- }
-
v4l2_ctrl_handler_free(&pdev->ctrl_handler);
kfree(pdev);
diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h
index 47c518fef179949be25f50c51eac12f95ea7c819..0f3bc1b3a971018e227093adea161277b2fbca69 100644
--- a/drivers/media/video/pwc/pwc.h
+++ b/drivers/media/video/pwc/pwc.h
@@ -44,6 +44,8 @@
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
#include <linux/input.h>
#endif
+#include "pwc-dec1.h"
+#include "pwc-dec23.h"
/* Version block */
#define PWC_VERSION "10.0.15"
@@ -272,7 +274,10 @@ struct pwc_device
int frame_total_size; /* including header & trailer */
int drop_frames;
- void *decompress_data; /* private data for decompression engine */
+ union { /* private data for decompression engine */
+ struct pwc_dec1_private dec1;
+ struct pwc_dec23_private dec23;
+ };
/*
* We have an 'image' and a 'view', where 'image' is the fixed-size img