diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-12-04 08:15:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-12-04 08:15:19 -0800 |
| commit | d7aa60d966461ca6114dc348e97889dc8850ff7f (patch) | |
| tree | c694b0027c5cfdaf4a737a6fd6c2c7a55d3f898e /drivers/media/dvb-core/dvb_ringbuffer.c | |
| parent | 559e608c46553c107dbba19dae0854af7b219400 (diff) | |
| parent | 1f2353f5a1af995efbf7bea44341aa0d03460b28 (diff) | |
Merge tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- New drivers:
- Mali-C55 ISP
- Rockchip VICAP (RKCIF)
- RKVDEC HEVC Decoder
- Renesas RZV2H IVC
- Sony IMX111 CMOS sensor driver
- Removed STi C8SECTPFE Driver
- Added a V4L2 ISP generic framework
- Usual set of cleanup, fixes and driver improvements
* tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (249 commits)
media: rockchip: rkcif: add support for rk3568 vicap mipi capture
media: rockchip: rkcif: add support for rk3568 vicap dvp capture
media: rockchip: rkcif: add support for px30 vip dvp capture
media: rockchip: rkcif: add abstraction for dma blocks
media: rockchip: rkcif: add abstraction for interface and crop blocks
media: rockchip: add driver for the rockchip camera interface
media: dt-bindings: add rockchip rk3568 vicap
media: dt-bindings: add rockchip px30 vip
media: dt-bindings: video-interfaces: add defines for sampling modes
Documentation: admin-guide: media: add rockchip camera interface
media: mali-c55: Mark pm handlers as __maybe_unused
media: mali-c55: Assert ISP blocks size correctness
media: v4l2-isp: Rename block_info to block_type_info
MAINTAINERS: Add entry for rzv2h-ivc driver
media: platform: Add Renesas Input Video Control block driver
dt-bindings: media: Add bindings for the RZ/V2H(P) IVC block
Documentation: media: mali-c55: Document the mali-c55 parameter setting
media: platform: Add mali-c55 parameters video node
media: uapi: Add parameters structs to mali-c55-config.h
media: mali-c55: Add image formats for Mali-C55 parameters buffer
...
Diffstat (limited to 'drivers/media/dvb-core/dvb_ringbuffer.c')
| -rw-r--r-- | drivers/media/dvb-core/dvb_ringbuffer.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/drivers/media/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb-core/dvb_ringbuffer.c index 7d4558de8e83..de6226556826 100644 --- a/drivers/media/dvb-core/dvb_ringbuffer.c +++ b/drivers/media/dvb-core/dvb_ringbuffer.c @@ -37,10 +37,11 @@ void dvb_ringbuffer_init(struct dvb_ringbuffer *rbuf, void *data, size_t len) { - rbuf->pread=rbuf->pwrite=0; - rbuf->data=data; - rbuf->size=len; - rbuf->error=0; + rbuf->pread = 0; + rbuf->pwrite = 0; + rbuf->data = data; + rbuf->size = len; + rbuf->error = 0; init_waitqueue_head(&rbuf->queue); @@ -235,7 +236,7 @@ ssize_t dvb_ringbuffer_write_user(struct dvb_ringbuffer *rbuf, return len; } -ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t len) +ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len) { int status; ssize_t oldpwrite = rbuf->pwrite; @@ -245,7 +246,8 @@ ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t le DVB_RINGBUFFER_WRITE_BYTE(rbuf, PKT_READY); status = dvb_ringbuffer_write(rbuf, buf, len); - if (status < 0) rbuf->pwrite = oldpwrite; + if (status < 0) + rbuf->pwrite = oldpwrite; return status; } @@ -258,8 +260,10 @@ ssize_t dvb_ringbuffer_pkt_read_user(struct dvb_ringbuffer *rbuf, size_t idx, pktlen = rbuf->data[idx] << 8; pktlen |= rbuf->data[(idx + 1) % rbuf->size]; - if (offset > pktlen) return -EINVAL; - if ((offset + len) > pktlen) len = pktlen - offset; + if (offset > pktlen) + return -EINVAL; + if ((offset + len) > pktlen) + len = pktlen - offset; idx = (idx + DVB_RINGBUFFER_PKTHDRSIZE + offset) % rbuf->size; todo = len; @@ -278,7 +282,7 @@ ssize_t dvb_ringbuffer_pkt_read_user(struct dvb_ringbuffer *rbuf, size_t idx, } ssize_t dvb_ringbuffer_pkt_read(struct dvb_ringbuffer *rbuf, size_t idx, - int offset, u8* buf, size_t len) + int offset, u8 *buf, size_t len) { size_t todo; size_t split; @@ -286,8 +290,10 @@ ssize_t dvb_ringbuffer_pkt_read(struct dvb_ringbuffer *rbuf, size_t idx, pktlen = rbuf->data[idx] << 8; pktlen |= rbuf->data[(idx + 1) % rbuf->size]; - if (offset > pktlen) return -EINVAL; - if ((offset + len) > pktlen) len = pktlen - offset; + if (offset > pktlen) + return -EINVAL; + if ((offset + len) > pktlen) + len = pktlen - offset; idx = (idx + DVB_RINGBUFFER_PKTHDRSIZE + offset) % rbuf->size; todo = len; @@ -309,7 +315,7 @@ void dvb_ringbuffer_pkt_dispose(struct dvb_ringbuffer *rbuf, size_t idx) rbuf->data[(idx + 2) % rbuf->size] = PKT_DISPOSED; // clean up disposed packets - while(dvb_ringbuffer_avail(rbuf) > DVB_RINGBUFFER_PKTHDRSIZE) { + while (dvb_ringbuffer_avail(rbuf) > DVB_RINGBUFFER_PKTHDRSIZE) { if (DVB_RINGBUFFER_PEEK(rbuf, 2) == PKT_DISPOSED) { pktlen = DVB_RINGBUFFER_PEEK(rbuf, 0) << 8; pktlen |= DVB_RINGBUFFER_PEEK(rbuf, 1); @@ -321,14 +327,14 @@ void dvb_ringbuffer_pkt_dispose(struct dvb_ringbuffer *rbuf, size_t idx) } } -ssize_t dvb_ringbuffer_pkt_next(struct dvb_ringbuffer *rbuf, size_t idx, size_t* pktlen) +ssize_t dvb_ringbuffer_pkt_next(struct dvb_ringbuffer *rbuf, size_t idx, size_t *pktlen) { int consumed; int curpktlen; int curpktstatus; if (idx == -1) { - idx = rbuf->pread; + idx = rbuf->pread; } else { curpktlen = rbuf->data[idx] << 8; curpktlen |= rbuf->data[(idx + 1) % rbuf->size]; @@ -339,7 +345,7 @@ ssize_t dvb_ringbuffer_pkt_next(struct dvb_ringbuffer *rbuf, size_t idx, size_t* if (consumed < 0) consumed += rbuf->size; - while((dvb_ringbuffer_avail(rbuf) - consumed) > DVB_RINGBUFFER_PKTHDRSIZE) { + while ((dvb_ringbuffer_avail(rbuf) - consumed) > DVB_RINGBUFFER_PKTHDRSIZE) { curpktlen = rbuf->data[idx] << 8; curpktlen |= rbuf->data[(idx + 1) % rbuf->size]; |
