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V4L/DVB: gspca - JPEG subdrivers: Don't allocate the JPEG header 

The JPEG header is now included in the subdriver structure instead
of being allocated and freed at capture start and stop.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-François Moine 2010-06-04 05:26:42 -03:00 committed by Mauro Carvalho Chehab
parent 456c9acb63
commit 9a731a3265
10 changed files with 18 additions and 94 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/media/video/gspca/conex.c
View File

@ -41,7 +41,7 @@ struct sd {
#define QUALITY_MAX 60
#define QUALITY_DEF 40
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -845,9 +845,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -862,11 +859,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* called on streamoff with alt 0 and on disconnect */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int retry = 50;
kfree(sd->jpeg_hdr);
if (!gspca_dev->present)
return;
reg_w_val(gspca_dev, 0x0000, 0x00);

6
drivers/media/video/gspca/jeilinj.c
View File

@ -50,7 +50,7 @@ struct sd {
struct workqueue_struct *work_thread;
u8 quality; /* image quality */
u8 jpegqual; /* webcam quality */
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
struct jlj_command {
@ -282,7 +282,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
destroy_workqueue(dev->work_thread);
dev->work_thread = NULL;
mutex_lock(&gspca_dev->usb_lock);
kfree(dev->jpeg_hdr);
}
/* this function is called at probe and resume time */
@ -298,9 +297,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
int ret;
/* create the JPEG header */
dev->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (dev->jpeg_hdr == NULL)
return -ENOMEM;
jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(dev->jpeg_hdr, dev->quality);

13
drivers/media/video/gspca/mars.c
View File

@ -41,7 +41,7 @@ struct sd {
#define QUALITY_MAX 70
#define QUALITY_DEF 50
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -200,9 +200,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
int i;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -317,13 +314,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
PDEBUG(D_ERR, "Camera Stop failed");
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* isoc packet */
int len) /* iso packet length */
@ -486,7 +476,6 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.get_jcomp = sd_get_jcomp,
.set_jcomp = sd_set_jcomp,

7
drivers/media/video/gspca/ov519.c
View File

@ -41,6 +41,11 @@
#include <linux/input.h>
#include "gspca.h"
/* The jpeg_hdr is used by w996Xcf only */
/* The CONEX_CAM define for jpeg.h needs renaming, now its used here too */
#define CONEX_CAM
#include "jpeg.h"
MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
MODULE_DESCRIPTION("OV519 USB Camera Driver");
MODULE_LICENSE("GPL");
@ -116,7 +121,7 @@ struct sd {
int sensor_height;
int sensor_reg_cache[256];
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* Note this is a bit of a hack, but the w9968cf driver needs the code for all

17
drivers/media/video/gspca/sn9c20x.c
View File

@ -89,7 +89,7 @@ struct sd {
u8 hstart;
u8 vstart;
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
u8 quality;
u8 flags;
@ -2162,10 +2162,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
int height = gspca_dev->height;
u8 fmt, scale = 0;
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (sd->jpeg_hdr == NULL)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, height, width,
0x21);
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -2197,8 +2193,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
}
configure_sensor_output(gspca_dev, mode);
reg_w(gspca_dev, 0x1100, sd->jpeg_hdr + JPEG_QT0_OFFSET, 64);
reg_w(gspca_dev, 0x1140, sd->jpeg_hdr + JPEG_QT1_OFFSET, 64);
reg_w(gspca_dev, 0x1100, &sd->jpeg_hdr[JPEG_QT0_OFFSET], 64);
reg_w(gspca_dev, 0x1140, &sd->jpeg_hdr[JPEG_QT1_OFFSET], 64);
reg_w(gspca_dev, 0x10fb, CLR_WIN(width, height), 5);
reg_w(gspca_dev, 0x1180, HW_WIN(mode, sd->hstart, sd->vstart), 6);
reg_w1(gspca_dev, 0x1189, scale);
@ -2226,12 +2222,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
reg_w1(gspca_dev, 0x1061, gspca_dev->usb_buf[0] & ~0x02);
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void do_autoexposure(struct gspca_dev *gspca_dev, u16 avg_lum)
{
struct sd *sd = (struct sd *) gspca_dev;
@ -2397,7 +2387,6 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
#ifdef CONFIG_INPUT
.int_pkt_scan = sd_int_pkt_scan,

13
drivers/media/video/gspca/spca500.c
View File

@ -57,7 +57,7 @@ struct sd {
#define PalmPixDC85 13
#define ToptroIndus 14
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -669,9 +669,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
__u8 xmult, ymult;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -891,13 +888,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
gspca_dev->usb_buf[0]);
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* isoc packet */
int len) /* iso packet length */
@ -1055,7 +1045,6 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.get_jcomp = sd_get_jcomp,
.set_jcomp = sd_set_jcomp,

13
drivers/media/video/gspca/stk014.c
View File

@ -40,7 +40,7 @@ struct sd {
#define QUALITY_MAX 95
#define QUALITY_DEF 80
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -337,9 +337,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
int ret, value;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -412,13 +409,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
PDEBUG(D_STREAM, "camera stopped");
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* isoc packet */
int len) /* iso packet length */
@ -578,7 +568,6 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
.get_jcomp = sd_get_jcomp,

13
drivers/media/video/gspca/sunplus.c
View File

@ -54,7 +54,7 @@ struct sd {
#define MegapixV4 4
#define MegaImageVI 5
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -842,9 +842,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
int enable;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -954,13 +951,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
}
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, /* isoc packet */
int len) /* iso packet length */
@ -1162,7 +1152,6 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.get_jcomp = sd_get_jcomp,
.set_jcomp = sd_set_jcomp,

16
drivers/media/video/gspca/w996Xcf.c
View File

@ -31,14 +31,10 @@
the sensor drivers to v4l2 sub drivers, and properly split of this
driver from ov519.c */
/* The CONEX_CAM define for jpeg.h needs renaming, now its used here too */
#define CONEX_CAM
#include "jpeg.h"
#define W9968CF_I2C_BUS_DELAY 4 /* delay in us for I2C bit r/w operations */
#define Y_QUANTABLE (sd->jpeg_hdr + JPEG_QT0_OFFSET)
#define UV_QUANTABLE (sd->jpeg_hdr + JPEG_QT1_OFFSET)
#define Y_QUANTABLE (&sd->jpeg_hdr[JPEG_QT0_OFFSET])
#define UV_QUANTABLE (&sd->jpeg_hdr[JPEG_QT1_OFFSET])
static const struct v4l2_pix_format w9968cf_vga_mode[] = {
{160, 120, V4L2_PIX_FMT_UYVY, V4L2_FIELD_NONE,
@ -509,11 +505,6 @@ static int w9968cf_mode_init_regs(struct sd *sd)
if (w9968cf_vga_mode[sd->gspca_dev.curr_mode].pixelformat ==
V4L2_PIX_FMT_JPEG) {
/* We may get called multiple times (usb isoc bw negotiat.) */
if (!sd->jpeg_hdr)
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, sd->gspca_dev.height,
sd->gspca_dev.width, 0x22); /* JPEG 420 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -562,9 +553,6 @@ static void w9968cf_stop0(struct sd *sd)
reg_w(sd, 0x39, 0x0000); /* disable JPEG encoder */
reg_w(sd, 0x16, 0x0000); /* stop video capture */
}
kfree(sd->jpeg_hdr);
sd->jpeg_hdr = NULL;
}
/* The w9968cf docs say that a 0 sized packet means EOF (and also SOF

6
drivers/media/video/gspca/zc3xx.c
View File

@ -75,7 +75,7 @@ struct sd {
#define SENSOR_MAX 19
unsigned short chip_revision;
u8 *jpeg_hdr;
u8 jpeg_hdr[JPEG_HDR_SZ];
};
/* V4L2 controls supported by the driver */
@ -6798,9 +6798,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
};
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
if (!sd->jpeg_hdr)
return -ENOMEM;
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
@ -6931,7 +6928,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
if (!gspca_dev->present)
return;
send_unknown(gspca_dev->dev, sd->sensor);