From: Jean-François Moine Date: Fri, 4 Jun 2010 08:26:42 +0000 (-0300) Subject: V4L/DVB: gspca - JPEG subdrivers: Don't allocate the JPEG header X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9a731a3265a808c806766a28e2b62e9da78f9ac6;p=openwrt%2Fstaging%2Fblogic.git 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 Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c index 19fe6b24c9a3..d6a75772f3f8 100644 --- a/drivers/media/video/gspca/conex.c +++ b/drivers/media/video/gspca/conex.c @@ -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); diff --git a/drivers/media/video/gspca/jeilinj.c b/drivers/media/video/gspca/jeilinj.c index 84ecd56c6470..12d9cf4caba2 100644 --- a/drivers/media/video/gspca/jeilinj.c +++ b/drivers/media/video/gspca/jeilinj.c @@ -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); diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c index 3d9229e22b25..031f7195ce0d 100644 --- a/drivers/media/video/gspca/mars.c +++ b/drivers/media/video/gspca/mars.c @@ -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, diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c index 6eeeee25523c..2e7df66a84b9 100644 --- a/drivers/media/video/gspca/ov519.c +++ b/drivers/media/video/gspca/ov519.c @@ -41,6 +41,11 @@ #include #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 "); 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 diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 644a7fd4701a..3f7e446d688a 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -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, diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c index b866c73c97db..c02beb6c1e93 100644 --- a/drivers/media/video/gspca/spca500.c +++ b/drivers/media/video/gspca/spca500.c @@ -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, diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c index 0fb534210a2c..45f4bc6ffc4a 100644 --- a/drivers/media/video/gspca/stk014.c +++ b/drivers/media/video/gspca/stk014.c @@ -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, diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c index 0c786e00ebcf..21d82bab0c2e 100644 --- a/drivers/media/video/gspca/sunplus.c +++ b/drivers/media/video/gspca/sunplus.c @@ -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, diff --git a/drivers/media/video/gspca/w996Xcf.c b/drivers/media/video/gspca/w996Xcf.c index 2fffe203bed8..38a68591ce48 100644 --- a/drivers/media/video/gspca/w996Xcf.c +++ b/drivers/media/video/gspca/w996Xcf.c @@ -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 diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c index d02aa5c8472a..0a043719f765 100644 --- a/drivers/media/video/gspca/zc3xx.c +++ b/drivers/media/video/gspca/zc3xx.c @@ -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);