diff options
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 6 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.h | 45 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-fileops.c | 128 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-ioctl.c | 3 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-mailbox.c | 58 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-mailbox.h | 6 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-queue.c | 316 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-queue.h | 54 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.c | 50 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.h | 10 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-vbi.c | 35 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-vbi.h | 2 |
12 files changed, 540 insertions, 173 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index e12082b8a08d..ba4c3ceffbb3 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -669,6 +669,12 @@ static int __devinit cx18_init_struct1(struct cx18 *cx) cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE; cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced; + /* IVTV style VBI insertion into MPEG streams */ + INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_buf.list); + INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_mdl.list); + INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_mdl.buf_list); + list_add(&cx->vbi.sliced_mpeg_buf.list, + &cx->vbi.sliced_mpeg_mdl.buf_list); return 0; } diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 1a899e0773d7..bed8bcc65411 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -246,8 +246,8 @@ struct cx18_options { int radio; /* enable/disable radio */ }; -/* per-buffer bit flags */ -#define CX18_F_B_NEED_BUF_SWAP 0 /* this buffer should be byte swapped */ +/* per-mdl bit flags */ +#define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianess swapped */ /* per-stream, s_flags */ #define CX18_F_S_CLAIMED 3 /* this stream is claimed */ @@ -274,15 +274,26 @@ struct cx18_options { struct cx18_buffer { struct list_head list; dma_addr_t dma_handle; - u32 id; - unsigned long b_flags; - unsigned skipped; char *buf; u32 bytesused; u32 readpos; }; +struct cx18_mdl { + struct list_head list; + u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */ + + unsigned int skipped; + unsigned long m_flags; + + struct list_head buf_list; + struct cx18_buffer *curr_buf; /* current buffer in list for reading */ + + u32 bytesused; + u32 readpos; +}; + struct cx18_queue { struct list_head list; atomic_t depth; @@ -346,14 +357,20 @@ struct cx18_stream { PCI_DMA_NONE */ wait_queue_head_t waitq; - /* Buffer Stats */ - u32 buffers; - u32 buf_size; + /* Buffers */ + struct list_head buf_pool; /* buffers not attached to an MDL */ + u32 buffers; /* total buffers owned by this stream */ + u32 buf_size; /* size in bytes of a single buffer */ + + /* MDL sizes - all stream MDLs are the same size */ + u32 bufs_per_mdl; + u32 mdl_size; /* total bytes in all buffers in a mdl */ - /* Buffer Queues */ - struct cx18_queue q_free; /* free buffers */ - struct cx18_queue q_busy; /* busy buffers - in use by firmware */ - struct cx18_queue q_full; /* full buffers - data for user apps */ + /* MDL Queues */ + struct cx18_queue q_free; /* free - in rotation, not committed */ + struct cx18_queue q_busy; /* busy - in use by firmware */ + struct cx18_queue q_full; /* full - data for user apps */ + struct cx18_queue q_idle; /* idle - not in rotation */ struct work_struct out_work_order; @@ -481,10 +498,11 @@ struct vbi_info { u32 inserted_frame; /* - * A dummy driver stream transfer buffer with a copy of the next + * A dummy driver stream transfer mdl & buffer with a copy of the next * sliced_mpeg_data[] buffer for output to userland apps. * Only used in cx18-fileops.c, but its state needs to persist at times. */ + struct cx18_mdl sliced_mpeg_mdl; struct cx18_buffer sliced_mpeg_buf; }; @@ -511,7 +529,6 @@ struct cx18 { u8 is_60hz; u8 nof_inputs; /* number of video inputs */ u8 nof_audio_inputs; /* number of audio inputs */ - u16 buffer_id; /* buffer ID counter */ u32 v4l2_cap; /* V4L2 capabilities of card */ u32 hw_flags; /* Hardware description of the board */ unsigned int free_mdl_idx; diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index e4a3faebff46..4e278db31cc9 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -166,11 +166,12 @@ static void cx18_dualwatch(struct cx18 *cx) } -static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, int *err) +static struct cx18_mdl *cx18_get_mdl(struct cx18_stream *s, int non_block, + int *err) { struct cx18 *cx = s->cx; struct cx18_stream *s_vbi = &cx->streams[CX18_ENC_STREAM_TYPE_VBI]; - struct cx18_buffer *buf; + struct cx18_mdl *mdl; DEFINE_WAIT(wait); *err = 0; @@ -185,32 +186,33 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, } if (test_bit(CX18_F_S_INTERNAL_USE, &s_vbi->s_flags) && !test_bit(CX18_F_S_APPL_IO, &s_vbi->s_flags)) { - while ((buf = cx18_dequeue(s_vbi, &s_vbi->q_full))) { + while ((mdl = cx18_dequeue(s_vbi, + &s_vbi->q_full))) { /* byteswap and process VBI data */ - cx18_process_vbi_data(cx, buf, + cx18_process_vbi_data(cx, mdl, s_vbi->type); - cx18_stream_put_buf_fw(s_vbi, buf); + cx18_stream_put_mdl_fw(s_vbi, mdl); } } - buf = &cx->vbi.sliced_mpeg_buf; - if (buf->readpos != buf->bytesused) - return buf; + mdl = &cx->vbi.sliced_mpeg_mdl; + if (mdl->readpos != mdl->bytesused) + return mdl; } /* do we have new data? */ - buf = cx18_dequeue(s, &s->q_full); - if (buf) { - if (!test_and_clear_bit(CX18_F_B_NEED_BUF_SWAP, - &buf->b_flags)) - return buf; + mdl = cx18_dequeue(s, &s->q_full); + if (mdl) { + if (!test_and_clear_bit(CX18_F_M_NEED_SWAP, + &mdl->m_flags)) + return mdl; if (s->type == CX18_ENC_STREAM_TYPE_MPG) /* byteswap MPG data */ - cx18_buf_swap(buf); + cx18_mdl_swap(mdl); else { /* byteswap and process VBI data */ - cx18_process_vbi_data(cx, buf, s->type); + cx18_process_vbi_data(cx, mdl, s->type); } - return buf; + return mdl; } /* return if end of stream */ @@ -241,21 +243,28 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, } } -static void cx18_setup_sliced_vbi_buf(struct cx18 *cx) +static void cx18_setup_sliced_vbi_mdl(struct cx18 *cx) { + struct cx18_mdl *mdl = &cx->vbi.sliced_mpeg_mdl; + struct cx18_buffer *buf = &cx->vbi.sliced_mpeg_buf; int idx = cx->vbi.inserted_frame % CX18_VBI_FRAMES; - cx->vbi.sliced_mpeg_buf.buf = cx->vbi.sliced_mpeg_data[idx]; - cx->vbi.sliced_mpeg_buf.bytesused = cx->vbi.sliced_mpeg_size[idx]; - cx->vbi.sliced_mpeg_buf.readpos = 0; + buf->buf = cx->vbi.sliced_mpeg_data[idx]; + buf->bytesused = cx->vbi.sliced_mpeg_size[idx]; + buf->readpos = 0; + + mdl->curr_buf = NULL; + mdl->bytesused = cx->vbi.sliced_mpeg_size[idx]; + mdl->readpos = 0; } static size_t cx18_copy_buf_to_user(struct cx18_stream *s, - struct cx18_buffer *buf, char __user *ubuf, size_t ucount) + struct cx18_buffer *buf, char __user *ubuf, size_t ucount, bool *stop) { struct cx18 *cx = s->cx; size_t len = buf->bytesused - buf->readpos; + *stop = false; if (len > ucount) len = ucount; if (cx->vbi.insert_mpeg && s->type == CX18_ENC_STREAM_TYPE_MPG && @@ -335,7 +344,8 @@ static size_t cx18_copy_buf_to_user(struct cx18_stream *s, /* We declare we actually found a Program Pack*/ cx->search_pack_header = 0; /* expect vid PES */ len = (char *)q - start; - cx18_setup_sliced_vbi_buf(cx); + cx18_setup_sliced_vbi_mdl(cx); + *stop = true; break; } } @@ -352,6 +362,60 @@ static size_t cx18_copy_buf_to_user(struct cx18_stream *s, return len; } +/** + * list_entry_is_past_end - check if a previous loop cursor is off list end + * @pos: the type * previously used as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Check if the entry's list_head is the head of the list, thus it's not a + * real entry but was the loop cursor that walked past the end + */ +#define list_entry_is_past_end(pos, head, member) \ + (&pos->member == (head)) + +static size_t cx18_copy_mdl_to_user(struct cx18_stream *s, + struct cx18_mdl *mdl, char __user *ubuf, size_t ucount) +{ + size_t tot_written = 0; + int rc; + bool stop = false; + + if (mdl->curr_buf == NULL) + mdl->curr_buf = list_first_entry(&mdl->buf_list, + struct cx18_buffer, list); + + if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) { + /* + * For some reason we've exhausted the buffers, but the MDL + * object still said some data was unread. + * Fix that and bail out. + */ + mdl->readpos = mdl->bytesused; + return 0; + } + + list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) { + + if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) + continue; + + rc = cx18_copy_buf_to_user(s, mdl->curr_buf, ubuf + tot_written, + ucount - tot_written, &stop); + if (rc < 0) + return rc; + mdl->readpos += rc; + tot_written += rc; + + if (stop || /* Forced stopping point for VBI insertion */ + tot_written >= ucount || /* Reader request statisfied */ + mdl->curr_buf->readpos < mdl->curr_buf->bytesused || + mdl->readpos >= mdl->bytesused) /* MDL buffers drained */ + break; + } + return tot_written; +} + static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, size_t tot_count, int non_block) { @@ -373,12 +437,12 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, single_frame = 1; for (;;) { - struct cx18_buffer *buf; + struct cx18_mdl *mdl; int rc; - buf = cx18_get_buffer(s, non_block, &rc); + mdl = cx18_get_mdl(s, non_block, &rc); /* if there is no data available... */ - if (buf == NULL) { + if (mdl == NULL) { /* if we got data, then return that regardless */ if (tot_written) break; @@ -392,20 +456,20 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, return rc; } - rc = cx18_copy_buf_to_user(s, buf, ubuf + tot_written, + rc = cx18_copy_mdl_to_user(s, mdl, ubuf + tot_written, tot_count - tot_written); - if (buf != &cx->vbi.sliced_mpeg_buf) { - if (buf->readpos == buf->bytesused) - cx18_stream_put_buf_fw(s, buf); + if (mdl != &cx->vbi.sliced_mpeg_mdl) { + if (mdl->readpos == mdl->bytesused) + cx18_stream_put_mdl_fw(s, mdl); else - cx18_push(s, buf, &s->q_full); - } else if (buf->readpos == buf->bytesused) { + cx18_push(s, mdl, &s->q_full); + } else if (mdl->readpos == mdl->bytesused) { int idx = cx->vbi.inserted_frame % CX18_VBI_FRAMES; cx->vbi.sliced_mpeg_size[idx] = 0; cx->vbi.inserted_frame++; - cx->vbi_data_inserted += buf->bytesused; + cx->vbi_data_inserted += mdl->bytesused; } if (rc < 0) return rc; diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c index 6539b031b4eb..3e4fc192fdec 100644 --- a/drivers/media/video/cx18/cx18-ioctl.c +++ b/drivers/media/video/cx18/cx18-ioctl.c @@ -910,7 +910,8 @@ static int cx18_log_status(struct file *file, void *fh) continue; CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags, - atomic_read(&s->q_full.depth) * 100 / s->buffers, + atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100 + / s->buffers, (s->buffers * s->buf_size) / 1024, s->buffers); } CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c index 4a1249a7d46a..f231dd09c720 100644 --- a/drivers/media/video/cx18/cx18-mailbox.c +++ b/drivers/media/video/cx18/cx18-mailbox.c @@ -131,13 +131,39 @@ static void dump_mb(struct cx18 *cx, struct cx18_mailbox *mb, char *name) * Functions that run in a work_queue work handling context */ +static void cx18_mdl_send_to_dvb(struct cx18_stream *s, struct cx18_mdl *mdl) +{ + struct cx18_buffer *buf; + + if (!s->dvb.enabled || mdl->bytesused == 0) + return; + + /* We ignore mdl and buf readpos accounting here - it doesn't matter */ + + /* The likely case */ + if (list_is_singular(&mdl->buf_list)) { + buf = list_first_entry(&mdl->buf_list, struct cx18_buffer, + list); + if (buf->bytesused) + dvb_dmx_swfilter(&s->dvb.demux, + buf->buf, buf->bytesused); + return; + } + + list_for_each_entry(buf, &mdl->buf_list, list) { + if (buf->bytesused == 0) + break; + dvb_dmx_swfilter(&s->dvb.demux, buf->buf, buf->bytesused); + } +} + static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order) { u32 handle, mdl_ack_count, id; struct cx18_mailbox *mb; struct cx18_mdl_ack *mdl_ack; struct cx18_stream *s; - struct cx18_buffer *buf; + struct cx18_mdl *mdl; int i; mb = &order->mb; @@ -158,7 +184,7 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order) id = mdl_ack->id; /* * Simple integrity check for processing a stale (and possibly - * inconsistent mailbox): make sure the buffer id is in the + * inconsistent mailbox): make sure the MDL id is in the * valid range for the stream. * * We go through the trouble of dealing with stale mailboxes @@ -169,44 +195,42 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order) * There are occasions when we get a half changed mailbox, * which this check catches for a handle & id mismatch. If the * handle and id do correspond, the worst case is that we - * completely lost the old buffer, but pick up the new buffer + * completely lost the old MDL, but pick up the new MDL * early (but the new mdl_ack is guaranteed to be good in this * case as the firmware wouldn't point us to a new mdl_ack until * it's filled in). * - * cx18_queue_get buf() will detect the lost buffers + * cx18_queue_get_mdl() will detect the lost MDLs * and send them back to q_free for fw rotation eventually. */ if ((order->flags & CX18_F_EWO_MB_STALE_UPON_RECEIPT) && !(id >= s->mdl_base_idx && id < (s->mdl_base_idx + s->buffers))) { CX18_WARN("Fell behind! Ignoring stale mailbox with " - " inconsistent data. Lost buffer for mailbox " + " inconsistent data. Lost MDL for mailbox " "seq no %d\n", mb->request); break; } - buf = cx18_queue_get_buf(s, id, mdl_ack->data_used); + mdl = cx18_queue_get_mdl(s, id, mdl_ack->data_used); - CX18_DEBUG_HI_DMA("DMA DONE for %s (buffer %d)\n", s->name, id); - if (buf == NULL) { - CX18_WARN("Could not find buf %d for stream %s\n", + CX18_DEBUG_HI_DMA("DMA DONE for %s (MDL %d)\n", s->name, id); + if (mdl == NULL) { + CX18_WARN("Could not find MDL %d for stream %s\n", id, s->name); continue; } CX18_DEBUG_HI_DMA("%s recv bytesused = %d\n", - s->name, buf->bytesused); + s->name, mdl->bytesused); if (s->type != CX18_ENC_STREAM_TYPE_TS) - cx18_enqueue(s, buf, &s->q_full); + cx18_enqueue(s, mdl, &s->q_full); else { - if (s->dvb.enabled) - dvb_dmx_swfilter(&s->dvb.demux, buf->buf, - buf->bytesused); - cx18_enqueue(s, buf, &s->q_free); + cx18_mdl_send_to_dvb(s, mdl); + cx18_enqueue(s, mdl, &s->q_free); } } - /* Put as many buffers as possible back into fw use */ + /* Put as many MDLs as possible back into fw use */ cx18_stream_load_fw_queue(s); wake_up(&cx->dma_waitq); @@ -616,7 +640,7 @@ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[]) /* * Wait for XPU to perform extra actions for the caller in some cases. - * e.g. CX18_CPU_DE_RELEASE_MDL will cause the CPU to send all buffers + * e.g. CX18_CPU_DE_RELEASE_MDL will cause the CPU to send all MDLs * back in a burst shortly thereafter */ if (info->flags & API_SLOW) diff --git a/drivers/media/video/cx18/cx18-mailbox.h b/drivers/media/video/cx18/cx18-mailbox.h index e23aaac5b280..5ea07359904c 100644 --- a/drivers/media/video/cx18/cx18-mailbox.h +++ b/drivers/media/video/cx18/cx18-mailbox.h @@ -39,14 +39,14 @@ struct cx18; /* - * This structure is used by CPU to provide completed buffers information - * Its structure is dictrated by the layout of the SCB, required by the + * This structure is used by CPU to provide completed MDL & buffers information. + * Its structure is dictated by the layout of the SCB, required by the * firmware, but its defintion needs to be here, instead of in cx18-scb.h, * for mailbox work order scheduling */ struct cx18_mdl_ack { u32 id; /* ID of a completed MDL */ - u32 data_used; /* Total data filled in the MDL for buffer 'id' */ + u32 data_used; /* Total data filled in the MDL with 'id' */ }; /* The cx18_mailbox struct is the mailbox structure which is used for passing diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c index b9bd4ff5535e..c1a49ecf9d98 100644 --- a/drivers/media/video/cx18/cx18-queue.c +++ b/drivers/media/video/cx18/cx18-queue.c @@ -26,6 +26,7 @@ #include "cx18-queue.h" #include "cx18-streams.h" #include "cx18-scb.h" +#include "cx18-io.h" void cx18_buf_swap(struct cx18_buffer *buf) { @@ -35,6 +36,17 @@ void cx18_buf_swap(struct cx18_buffer *buf) swab32s((u32 *)(buf->buf + i)); } +void _cx18_mdl_swap(struct cx18_mdl *mdl) +{ + struct cx18_buffer *buf; + + list_for_each_entry(buf, &mdl->buf_list, list) { + if (buf->bytesused == 0) + break; + cx18_buf_swap(buf); + } +} + void cx18_queue_init(struct cx18_queue *q) { INIT_LIST_HEAD(&q->list); @@ -42,15 +54,16 @@ void cx18_queue_init(struct cx18_queue *q) q->bytesused = 0; } -struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q, int to_front) { - /* clear the buffer if it is not to be enqueued to the full queue */ + /* clear the mdl if it is not to be enqueued to the full queue */ if (q != &s->q_full) { - buf->bytesused = 0; - buf->readpos = 0; - buf->b_flags = 0; - buf->skipped = 0; + mdl->bytesused = 0; + mdl->readpos = 0; + mdl->m_flags = 0; + mdl->skipped = 0; + mdl->curr_buf = NULL; } /* q_busy is restricted to a max buffer count imposed by firmware */ @@ -61,125 +74,270 @@ struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, spin_lock(&q->lock); if (to_front) - list_add(&buf->list, &q->list); /* LIFO */ + list_add(&mdl->list, &q->list); /* LIFO */ else - list_add_tail(&buf->list, &q->list); /* FIFO */ - q->bytesused += buf->bytesused - buf->readpos; + list_add_tail(&mdl->list, &q->list); /* FIFO */ + q->bytesused += mdl->bytesused - mdl->readpos; atomic_inc(&q->depth); spin_unlock(&q->lock); return q; } -struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q) +struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q) { - struct cx18_buffer *buf = NULL; + struct cx18_mdl *mdl = NULL; spin_lock(&q->lock); if (!list_empty(&q->list)) { - buf = list_first_entry(&q->list, struct cx18_buffer, list); - list_del_init(&buf->list); - q->bytesused -= buf->bytesused - buf->readpos; - buf->skipped = 0; + mdl = list_first_entry(&q->list, struct cx18_mdl, list); + list_del_init(&mdl->list); + q->bytesused -= mdl->bytesused - mdl->readpos; + mdl->skipped = 0; atomic_dec(&q->depth); } spin_unlock(&q->lock); - return buf; + return mdl; +} + +static void _cx18_mdl_set_buf_bytesused(struct cx18_stream *s, + struct cx18_mdl *mdl) +{ + struct cx18_buffer *buf; + u32 buf_size = s->buf_size; + u32 bytesused = mdl->bytesused; + + list_for_each_entry(buf, &mdl->buf_list, list) { + buf->readpos = 0; + if (bytesused >= buf_size) { + buf->bytesused = buf_size; + bytesused -= buf_size; + } else { + buf->bytesused = bytesused; + bytesused = 0; + } + } } -struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, +static inline void cx18_mdl_set_buf_bytesused(struct cx18_stream *s, + struct cx18_mdl *mdl) +{ + struct cx18_buffer *buf; + + if (list_is_singular(&mdl->buf_list)) { + buf = list_first_entry(&mdl->buf_list, struct cx18_buffer, + list); + buf->bytesused = mdl->bytesused; + buf->readpos = 0; + } else { + _cx18_mdl_set_buf_bytesused(s, mdl); + } +} + +struct cx18_mdl *cx18_queue_get_mdl(struct cx18_stream *s, u32 id, u32 bytesused) { struct cx18 *cx = s->cx; - struct cx18_buffer *buf; - struct cx18_buffer *tmp; - struct cx18_buffer *ret = NULL; + struct cx18_mdl *mdl; + struct cx18_mdl *tmp; + struct cx18_mdl *ret = NULL; LIST_HEAD(sweep_up); /* * We don't have to acquire multiple q locks here, because we are * serialized by the single threaded work handler. - * Buffers from the firmware will thus remain in order as + * MDLs from the firmware will thus remain in order as * they are moved from q_busy to q_full or to the dvb ring buffer. */ spin_lock(&s->q_busy.lock); - list_for_each_entry_safe(buf, tmp, &s->q_busy.list, list) { + list_for_each_entry_safe(mdl, tmp, &s->q_busy.list, list) { /* * We should find what the firmware told us is done, * right at the front of the queue. If we don't, we likely have - * missed a buffer done message from the firmware. - * Once we skip a buffer repeatedly, relative to the size of + * missed an mdl done message from the firmware. + * Once we skip an mdl repeatedly, relative to the size of * q_busy, we have high confidence we've missed it. */ - if (buf->id != id) { - buf->skipped++; - if (buf->skipped >= atomic_read(&s->q_busy.depth)-1) { - /* buffer must have fallen out of rotation */ - CX18_WARN("Skipped %s, buffer %d, %d " + if (mdl->id != id) { + mdl->skipped++; + if (mdl->skipped >= atomic_read(&s->q_busy.depth)-1) { + /* mdl must have fallen out of rotation */ + CX18_WARN("Skipped %s, MDL %d, %d " "times - it must have dropped out of " - "rotation\n", s->name, buf->id, - buf->skipped); + "rotation\n", s->name, mdl->id, + mdl->skipped); /* Sweep it up to put it back into rotation */ - list_move_tail(&buf->list, &sweep_up); + list_move_tail(&mdl->list, &sweep_up); atomic_dec(&s->q_busy.depth); } continue; } /* - * We pull the desired buffer off of the queue here. Something + * We pull the desired mdl off of the queue here. Something * will have to put it back on a queue later. */ - list_del_init(&buf->list); + list_del_init(&mdl->list); atomic_dec(&s->q_busy.depth); - ret = buf; + ret = mdl; break; } spin_unlock(&s->q_busy.lock); /* - * We found the buffer for which we were looking. Get it ready for + * We found the mdl for which we were looking. Get it ready for * the caller to put on q_full or in the dvb ring buffer. */ if (ret != NULL) { ret->bytesused = bytesused; ret->skipped = 0; - /* readpos and b_flags were 0'ed when the buf went on q_busy */ - cx18_buf_sync_for_cpu(s, ret); + /* 0'ed readpos, m_flags & curr_buf when mdl went on q_busy */ + cx18_mdl_set_buf_bytesused(s, ret); + cx18_mdl_sync_for_cpu(s, ret); if (s->type != CX18_ENC_STREAM_TYPE_TS) - set_bit(CX18_F_B_NEED_BUF_SWAP, &ret->b_flags); + set_bit(CX18_F_M_NEED_SWAP, &ret->m_flags); } - /* Put any buffers the firmware is ignoring back into normal rotation */ - list_for_each_entry_safe(buf, tmp, &sweep_up, list) { - list_del_init(&buf->list); - cx18_enqueue(s, buf, &s->q_free); + /* Put any mdls the firmware is ignoring back into normal rotation */ + list_for_each_entry_safe(mdl, tmp, &sweep_up, list) { + list_del_init(&mdl->list); + cx18_enqueue(s, mdl, &s->q_free); } return ret; } -/* Move all buffers of a queue to q_free, while flushing the buffers */ -static void cx18_queue_flush(struct cx18_stream *s, struct cx18_queue *q) +/* Move all mdls of a queue, while flushing the mdl */ +static void cx18_queue_flush(struct cx18_stream *s, + struct cx18_queue *q_src, struct cx18_queue *q_dst) { - struct cx18_buffer *buf; + struct cx18_mdl *mdl; - if (q == &s->q_free) + /* It only makes sense to flush to q_free or q_idle */ + if (q_src == q_dst || q_dst == &s->q_full || q_dst == &s->q_busy) return; - spin_lock(&q->lock); - while (!list_empty(&q->list)) { - buf = list_first_entry(&q->list, struct cx18_buffer, list); - list_move_tail(&buf->list, &s->q_free.list); - buf->bytesused = buf->readpos = buf->b_flags = buf->skipped = 0; - atomic_inc(&s->q_free.depth); + spin_lock(&q_src->lock); + spin_lock(&q_dst->lock); + while (!list_empty(&q_src->list)) { + mdl = list_first_entry(&q_src->list, struct cx18_mdl, list); + list_move_tail(&mdl->list, &q_dst->list); + mdl->bytesused = 0; + mdl->readpos = 0; + mdl->m_flags = 0; + mdl->skipped = 0; + mdl->curr_buf = NULL; + atomic_inc(&q_dst->depth); } - cx18_queue_init(q); - spin_unlock(&q->lock); + cx18_queue_init(q_src); + spin_unlock(&q_src->lock); + spin_unlock(&q_dst->lock); } void cx18_flush_queues(struct cx18_stream *s) { - cx18_queue_flush(s, &s->q_busy); - cx18_queue_flush(s, &s->q_full); + cx18_queue_flush(s, &s->q_busy, &s->q_free); + cx18_queue_flush(s, &s->q_full, &s->q_free); +} + +/* + * Note, s->buf_pool is not protected by a lock, + * the stream better not have *anything* going on when calling this + */ +void cx18_unload_queues(struct cx18_stream *s) +{ + struct cx18_queue *q_idle = &s->q_idle; + struct cx18_mdl *mdl; + struct cx18_buffer *buf; + + /* Move all MDLS to q_idle */ + cx18_queue_flush(s, &s->q_busy, q_idle); + cx18_queue_flush(s, &s->q_full, q_idle); + cx18_queue_flush(s, &s->q_free, q_idle); + + /* Reset MDL id's and move all buffers back to the stream's buf_pool */ + spin_lock(&q_idle->lock); + list_for_each_entry(mdl, &q_idle->list, list) { + while (!list_empty(&mdl->buf_list)) { + buf = list_first_entry(&mdl->buf_list, + struct cx18_buffer, list); + list_move_tail(&buf->list, &s->buf_pool); + buf->bytesused = 0; + buf->readpos = 0; + } + mdl->id = s->mdl_base_idx; /* reset id to a "safe" value */ + /* all other mdl fields were cleared by cx18_queue_flush() */ + } + spin_unlock(&q_idle->lock); +} + +/* + * Note, s->buf_pool is not protected by a lock, + * the stream better not have *anything* going on when calling this + */ +void cx18_load_queues(struct cx18_stream *s) +{ + struct cx18 *cx = s->cx; + struct cx18_mdl *mdl; + struct cx18_buffer *buf; + int mdl_id; + int i; + + /* + * Attach buffers to MDLs, give the MDLs ids, and add MDLs to q_free + * Excess MDLs are left on q_idle + * Excess buffers are left in buf_pool and/or on an MDL in q_idle + */ + mdl_id = s->mdl_base_idx; + for (mdl = cx18_dequeue(s, &s->q_idle), i = s->bufs_per_mdl; + mdl != NULL && i == s->bufs_per_mdl; + mdl = cx18_dequeue(s, &s->q_idle)) { + + mdl->id = mdl_id; + + for (i = 0; i < s->bufs_per_mdl; i++) { + if (list_empty(&s->buf_pool)) + break; + + buf = list_first_entry(&s->buf_pool, struct cx18_buffer, + list); + list_move_tail(&buf->list, &mdl->buf_list); + + /* update the firmware's MDL array with this buffer */ + cx18_writel(cx, buf->dma_handle, + &cx->scb->cpu_mdl[mdl_id + i].paddr); + cx18_writel(cx, s->buf_size, + &cx->scb->cpu_mdl[mdl_id + i].length); + } + + if (i == s->bufs_per_mdl) + cx18_enqueue(s, mdl, &s->q_free); + else + cx18_push(s, mdl, &s->q_idle); /* not enough buffers */ + mdl_id += i; + } +} + +void _cx18_mdl_sync_for_cpu(struct cx18_stream *s, struct cx18_mdl *mdl) +{ + int dma = s->dma; + u32 buf_size = s->buf_size; + struct pci_dev *pci_dev = s->cx->pci_dev; + struct cx18_buffer *buf; + + list_for_each_entry(buf, &mdl->buf_list, list) + pci_dma_sync_single_for_cpu(pci_dev, buf->dma_handle, + buf_size, dma); +} + +void _cx18_mdl_sync_for_device(struct cx18_stream *s, struct cx18_mdl *mdl) +{ + int dma = s->dma; + u32 buf_size = s->buf_size; + struct pci_dev *pci_dev = s->cx->pci_dev; + struct cx18_buffer *buf; + + list_for_each_entry(buf, &mdl->buf_list, list) + pci_dma_sync_single_for_device(pci_dev, buf->dma_handle, + buf_size, dma); } int cx18_stream_alloc(struct cx18_stream *s) @@ -207,24 +365,40 @@ int cx18_stream_alloc(struct cx18_stream *s) s->mdl_base_idx = cx->free_mdl_idx; - /* allocate stream buffers. Initially all buffers are in q_free. */ + /* allocate stream buffers and MDLs */ for (i = 0; i < s->buffers; i++) { - struct cx18_buffer *buf = kzalloc(sizeof(struct cx18_buffer), - GFP_KERNEL|__GFP_NOWARN); + struct cx18_mdl *mdl; + struct cx18_buffer *buf; - if (buf == NULL) + /* 1 MDL per buffer to handle the worst & also default case */ + mdl = kzalloc(sizeof(struct cx18_mdl), GFP_KERNEL|__GFP_NOWARN); + if (mdl == NULL) break; + + buf = kzalloc(sizeof(struct cx18_buffer), + GFP_KERNEL|__GFP_NOWARN); + if (buf == NULL) { + kfree(mdl); + break; + } + buf->buf = kmalloc(s->buf_size, GFP_KERNEL|__GFP_NOWARN); if (buf->buf == NULL) { + kfree(mdl); kfree(buf); break; } - buf->id = cx->buffer_id++; + + INIT_LIST_HEAD(&mdl->list); + INIT_LIST_HEAD(&mdl->buf_list); + mdl->id = s->mdl_base_idx; /* a somewhat safe value */ + cx18_enqueue(s, mdl, &s->q_idle); + INIT_LIST_HEAD(&buf->list); buf->dma_handle = pci_map_single(s->cx->pci_dev, buf->buf, s->buf_size, s->dma); cx18_buf_sync_for_cpu(s, buf); - cx18_enqueue(s, buf, &s->q_free); + list_add_tail(&buf->list, &s->buf_pool); } if (i == s->buffers) { cx->free_mdl_idx += s->buffers; @@ -237,13 +411,21 @@ int cx18_stream_alloc(struct cx18_stream *s) void cx18_stream_free(struct cx18_stream *s) { + struct cx18_mdl *mdl; struct cx18_buffer *buf; - /* move all buffers to q_free */ - cx18_flush_queues(s); + /* move all buffers to buf_pool and all MDLs to q_idle */ + cx18_unload_queues(s); + + /* empty q_idle */ + while ((mdl = cx18_dequeue(s, &s->q_idle))) + kfree(mdl); + + /* empty buf_pool */ + while (!list_empty(&s->buf_pool)) { + buf = list_first_entry(&s->buf_pool, struct cx18_buffer, list); + list_del_init(&buf->list); - /* empty q_free */ - while ((buf = cx18_dequeue(s, &s->q_free))) { pci_unmap_single(s->cx->pci_dev, buf->dma_handle, s->buf_size, s->dma); kfree(buf->buf); diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index 4de06269d88f..96747e5e7c3c 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -33,6 +33,19 @@ static inline void cx18_buf_sync_for_cpu(struct cx18_stream *s, s->buf_size, s->dma); } +void _cx18_mdl_sync_for_cpu(struct cx18_stream *s, struct cx18_mdl *mdl); + +static inline void cx18_mdl_sync_for_cpu(struct cx18_stream *s, + struct cx18_mdl *mdl) +{ + if (list_is_singular(&mdl->buf_list)) + cx18_buf_sync_for_cpu(s, list_first_entry(&mdl->buf_list, + struct cx18_buffer, + list)); + else + _cx18_mdl_sync_for_cpu(s, mdl); +} + static inline void cx18_buf_sync_for_device(struct cx18_stream *s, struct cx18_buffer *buf) { @@ -40,32 +53,59 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s, s->buf_size, s->dma); } +void _cx18_mdl_sync_for_device(struct cx18_stream *s, struct cx18_mdl *mdl); + +static inline void cx18_mdl_sync_for_device(struct cx18_stream *s, + struct cx18_mdl *mdl) +{ + if (list_is_singular(&mdl->buf_list)) + cx18_buf_sync_for_device(s, list_first_entry(&mdl->buf_list, + struct cx18_buffer, + list)); + else + _cx18_mdl_sync_for_device(s, mdl); +} + void cx18_buf_swap(struct cx18_buffer *buf); +void _cx18_mdl_swap(struct cx18_mdl *mdl); + +static inline void cx18_mdl_swap(struct cx18_mdl *mdl) +{ + if (list_is_singular(&mdl->buf_list)) + cx18_buf_swap(list_first_entry(&mdl->buf_list, + struct cx18_buffer, list)); + else + _cx18_mdl_swap(mdl); +} /* cx18_queue utility functions */ -struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q, int to_front); static inline -struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q) { - return _cx18_enqueue(s, buf, q, 0); /* FIFO */ + return _cx18_enqueue(s, mdl, q, 0); /* FIFO */ } static inline -struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q) { - return _cx18_enqueue(s, buf, q, 1); /* LIFO */ + return _cx18_enqueue(s, mdl, q, 1); /* LIFO */ } void cx18_queue_init(struct cx18_queue *q); -struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); -struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, +struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); +struct cx18_mdl *cx18_queue_get_mdl(struct cx18_stream *s, u32 id, u32 bytesused); void cx18_flush_queues(struct cx18_stream *s); +/* queue MDL reconfiguration helpers */ +void cx18_unload_queues(struct cx18_stream *s); +void cx18_load_queues(struct cx18_stream *s); + /* cx18_stream utility functions */ int cx18_stream_alloc(struct cx18_stream *s); void cx18_stream_free(struct cx18_stream *s); diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index 10228c5ca5a0..9f8adda6f261 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -115,6 +115,9 @@ static void cx18_stream_init(struct cx18 *cx, int type) s->dma = cx18_stream_info[type].dma; s->buffers = cx->stream_buffers[type]; s->buf_size = cx->stream_buf_size[type]; + INIT_LIST_HEAD(&s->buf_pool); + s->bufs_per_mdl = 1; + s->mdl_size = s->buf_size * s->bufs_per_mdl; init_waitqueue_head(&s->waitq); s->id = -1; @@ -124,6 +127,8 @@ static void cx18_stream_init(struct cx18 *cx, int type) cx18_queue_init(&s->q_busy); spin_lock_init(&s->q_full.lock); cx18_queue_init(&s->q_full); + spin_lock_init(&s->q_idle.lock); + cx18_queue_init(&s->q_idle); INIT_WORK(&s->out_work_order, cx18_out_work_handler); } @@ -441,8 +446,8 @@ static void cx18_vbi_setup(struct cx18_stream *s) } static -struct cx18_queue *_cx18_stream_put_buf_fw(struct cx18_stream *s, - struct cx18_buffer *buf) +struct cx18_queue *_cx18_stream_put_mdl_fw(struct cx18_stream *s, + struct cx18_mdl *mdl) { struct cx18 *cx = s->cx; struct cx18_queue *q; @@ -451,16 +456,16 @@ struct cx18_queue *_cx18_stream_put_buf_fw(struct cx18_stream *s, if (s->handle == CX18_INVALID_TASK_HANDLE || test_bit(CX18_F_S_STOPPING, &s->s_flags) || !test_bit(CX18_F_S_STREAMING, &s->s_flags)) - return cx18_enqueue(s, buf, &s->q_free); + return cx18_enqueue(s, mdl, &s->q_free); - q = cx18_enqueue(s, buf, &s->q_busy); + q = cx18_enqueue(s, mdl, &s->q_busy); if (q != &s->q_busy) - return q; /* The firmware has the max buffers it can handle */ + return q; /* The firmware has the max MDLs it can handle */ - cx18_buf_sync_for_device(s, buf); + cx18_mdl_sync_for_device(s, mdl); cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, - (void __iomem *) &cx->scb->cpu_mdl[buf->id] - cx->enc_mem, - 1, buf->id, s->buf_size); + (void __iomem *) &cx->scb->cpu_mdl[mdl->id] - cx->enc_mem, + s->bufs_per_mdl, mdl->id, s->mdl_size); return q; } @@ -468,7 +473,7 @@ static void _cx18_stream_load_fw_queue(struct cx18_stream *s) { struct cx18_queue *q; - struct cx18_buffer *buf; + struct cx18_mdl *mdl; if (atomic_read(&s->q_free.depth) == 0 || atomic_read(&s->q_busy.depth) >= CX18_MAX_FW_MDLS_PER_STREAM) @@ -476,10 +481,10 @@ void _cx18_stream_load_fw_queue(struct cx18_stream *s) /* Move from q_free to q_busy notifying the firmware, until the limit */ do { - buf = cx18_dequeue(s, &s->q_free); - if (buf == NULL) + mdl = cx18_dequeue(s, &s->q_free); + if (mdl == NULL) break; - q = _cx18_stream_put_buf_fw(s, buf); + q = _cx18_stream_put_mdl_fw(s, mdl); } while (atomic_read(&s->q_busy.depth) < CX18_MAX_FW_MDLS_PER_STREAM && q == &s->q_busy); } @@ -492,11 +497,21 @@ void cx18_out_work_handler(struct work_struct *work) _cx18_stream_load_fw_queue(s); } +static void cx18_stream_configure_mdls(struct cx18_stream *s) +{ + cx18_unload_queues(s); + + /* For now */ + s->bufs_per_mdl = 1; + s->mdl_size = s->buf_size * s->bufs_per_mdl; + + cx18_load_queues(s); +} + int cx18_start_v4l2_encode_stream(struct cx18_stream *s) { u32 data[MAX_MB_ARGUMENTS]; struct cx18 *cx = s->cx; - struct cx18_buffer *buf; int captype = 0; struct cx18_api_func_private priv; @@ -619,14 +634,7 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s) (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][1] - cx->enc_mem); /* Init all the cpu_mdls for this stream */ - cx18_flush_queues(s); - spin_lock(&s->q_free.lock); - list_for_each_entry(buf, &s->q_free.list, list) { - cx18_writel(cx, buf->dma_handle, - &cx->scb->cpu_mdl[buf->id].paddr); - cx18_writel(cx, s->buf_size, &cx->scb->cpu_mdl[buf->id].length); - } - spin_unlock(&s->q_free.lock); + cx18_stream_configure_mdls(s); _cx18_stream_load_fw_queue(s); /* begin_capture */ diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h index 1afc3fd9d822..4a01db5e5a35 100644 --- a/drivers/media/video/cx18/cx18-streams.h +++ b/drivers/media/video/cx18/cx18-streams.h @@ -28,18 +28,18 @@ int cx18_streams_setup(struct cx18 *cx); int cx18_streams_register(struct cx18 *cx); void cx18_streams_cleanup(struct cx18 *cx, int unregister); -/* Related to submission of buffers to firmware */ +/* Related to submission of mdls to firmware */ static inline void cx18_stream_load_fw_queue(struct cx18_stream *s) { struct cx18 *cx = s->cx; queue_work(cx->out_work_queue, &s->out_work_order); } -static inline void cx18_stream_put_buf_fw(struct cx18_stream *s, - struct cx18_buffer *buf) +static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s, + struct cx18_mdl *mdl) { - /* Put buf on q_free; the out work handler will move buf(s) to q_busy */ - cx18_enqueue(s, buf, &s->q_free); + /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */ + cx18_enqueue(s, mdl, &s->q_free); cx18_stream_load_fw_queue(s); } diff --git a/drivers/media/video/cx18/cx18-vbi.c b/drivers/media/video/cx18/cx18-vbi.c index c2aef4add31d..574c1c6974f8 100644 --- a/drivers/media/video/cx18/cx18-vbi.c +++ b/drivers/media/video/cx18/cx18-vbi.c @@ -105,6 +105,7 @@ static void copy_vbi_data(struct cx18 *cx, int lines, u32 pts_stamp) /* Compress raw VBI format, removes leading SAV codes and surplus space after the frame. Returns new compressed size. */ +/* FIXME - this function ignores the input size. */ static u32 compress_raw_buf(struct cx18 *cx, u8 *buf, u32 size, u32 hdr_size) { u32 line_size = vbi_active_samples; @@ -185,8 +186,7 @@ static u32 compress_sliced_buf(struct cx18 *cx, u8 *buf, u32 size, return line; } -void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, - int streamtype) +static void _cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf) { /* * The CX23418 provides a 12 byte header in its raw VBI buffers to us: @@ -203,9 +203,6 @@ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, u32 pts; int lines; - if (streamtype != CX18_ENC_STREAM_TYPE_VBI) - return; - /* * The CX23418 sends us data that is 32 bit little-endian swapped, * but we want the raw VBI bytes in the order they were in the raster @@ -250,3 +247,31 @@ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, copy_vbi_data(cx, lines, pts); cx->vbi.frame++; } + +void cx18_process_vbi_data(struct cx18 *cx, struct cx18_mdl *mdl, + int streamtype) +{ + struct cx18_buffer *buf; + u32 orig_used; + + if (streamtype != CX18_ENC_STREAM_TYPE_VBI) + return; + + /* + * Big assumption here: + * Every buffer hooked to the MDL's buf_list is a complete VBI frame + * that ends at the end of the buffer. + * + * To assume anything else would make the code in this file + * more complex, or require extra memcpy()'s to make the + * buffers satisfy the above assumption. It's just simpler to set + * up the encoder buffer transfers to make the assumption true. + */ + list_for_each_entry(buf, &mdl->buf_list, list) { + orig_used = buf->bytesused; + if (orig_used == 0) + break; + _cx18_process_vbi_data(cx, buf); + mdl->bytesused -= (orig_used - buf->bytesused); + } +} diff --git a/drivers/media/video/cx18/cx18-vbi.h b/drivers/media/video/cx18/cx18-vbi.h index e7e1ae427f34..b365cf4b4668 100644 --- a/drivers/media/video/cx18/cx18-vbi.h +++ b/drivers/media/video/cx18/cx18-vbi.h @@ -21,6 +21,6 @@ * 02111-1307 USA */ -void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, +void cx18_process_vbi_data(struct cx18 *cx, struct cx18_mdl *mdl, int streamtype); int cx18_used_line(struct cx18 *cx, int line, int field); |