diff options
| author | Marton Nemeth <nm127@freemail.hu> | 2009-11-02 08:05:51 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:41:15 -0200 |
| commit | a6b69e409a41144c24dcbecdc174a5c847631de2 (patch) | |
| tree | e92a3b7fdef8fe4e453645ce84ff9753194c4951 /drivers/media | |
| parent | c86c82b74f800486ede57fdd5a4fa77d86368861 (diff) | |
V4L/DVB (13298): gspca - pac207/pac7311/mr97310a: Simplify pac_find_sof.
Remove struct sd dependency from pac_find_sof() function implementation.
This step prepares separation of pac7302 and pac7311 specific parts of
struct sd.
Signed-off-by: Marton Nemeth <nm127@freemail.hu>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/mr97310a.c | 3 | ||||
| -rw-r--r-- | drivers/media/video/gspca/pac207.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/gspca/pac7311.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/gspca/pac_common.h | 27 |
4 files changed, 17 insertions, 17 deletions
diff --git a/drivers/media/video/gspca/mr97310a.c b/drivers/media/video/gspca/mr97310a.c index 442bf1ec5ed..ffb5e6d62c0 100644 --- a/drivers/media/video/gspca/mr97310a.c +++ b/drivers/media/video/gspca/mr97310a.c @@ -1034,9 +1034,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, __u8 *data, /* isoc packet */ int len) /* iso packet length */ { + struct sd *sd = (struct sd *) gspca_dev; unsigned char *sof; - sof = pac_find_sof(gspca_dev, data, len); + sof = pac_find_sof(&sd->sof_read, data, len); if (sof) { int n; diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c index 96659433d24..57e13e2d550 100644 --- a/drivers/media/video/gspca/pac207.c +++ b/drivers/media/video/gspca/pac207.c @@ -344,7 +344,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct sd *sd = (struct sd *) gspca_dev; unsigned char *sof; - sof = pac_find_sof(gspca_dev, data, len); + sof = pac_find_sof(&sd->sof_read, data, len); if (sof) { int n; diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c index a3fbd307bb7..329f867612d 100644 --- a/drivers/media/video/gspca/pac7311.c +++ b/drivers/media/video/gspca/pac7311.c @@ -838,7 +838,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct sd *sd = (struct sd *) gspca_dev; unsigned char *sof; - sof = pac_find_sof(gspca_dev, data, len); + sof = pac_find_sof(&sd->sof_read, data, len); if (sof) { unsigned char tmpbuf[4]; int n, lum_offset, footer_length; diff --git a/drivers/media/video/gspca/pac_common.h b/drivers/media/video/gspca/pac_common.h index d3006539fb8..20f67d9b8c0 100644 --- a/drivers/media/video/gspca/pac_common.h +++ b/drivers/media/video/gspca/pac_common.h @@ -72,42 +72,41 @@ static const unsigned char pac_sof_marker[5] = +----------+ */ -static unsigned char *pac_find_sof(struct gspca_dev *gspca_dev, +static unsigned char *pac_find_sof(u8 *sof_read, unsigned char *m, int len) { - struct sd *sd = (struct sd *) gspca_dev; int i; /* Search for the SOF marker (fixed part) in the header */ for (i = 0; i < len; i++) { - switch (sd->sof_read) { + switch (*sof_read) { case 0: if (m[i] == 0xff) - sd->sof_read = 1; + *sof_read = 1; break; case 1: if (m[i] == 0xff) - sd->sof_read = 2; + *sof_read = 2; else - sd->sof_read = 0; + *sof_read = 0; break; case 2: switch (m[i]) { case 0x00: - sd->sof_read = 3; + *sof_read = 3; break; case 0xff: /* stay in this state */ break; default: - sd->sof_read = 0; + *sof_read = 0; } break; case 3: if (m[i] == 0xff) - sd->sof_read = 4; + *sof_read = 4; else - sd->sof_read = 0; + *sof_read = 0; break; case 4: switch (m[i]) { @@ -117,18 +116,18 @@ static unsigned char *pac_find_sof(struct gspca_dev *gspca_dev, "SOF found, bytes to analyze: %u." " Frame starts at byte #%u", len, i + 1); - sd->sof_read = 0; + *sof_read = 0; return m + i + 1; break; case 0xff: - sd->sof_read = 2; + *sof_read = 2; break; default: - sd->sof_read = 0; + *sof_read = 0; } break; default: - sd->sof_read = 0; + *sof_read = 0; } } |