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-rw-r--r--drivers/media/video/ivtv/ivtv-driver.h22
-rw-r--r--drivers/media/video/ivtv/ivtv-irq.c234
-rw-r--r--drivers/media/video/ivtv/ivtv-queue.c63
-rw-r--r--drivers/media/video/ivtv/ivtv-queue.h8
-rw-r--r--drivers/media/video/ivtv/ivtv-streams.c2
5 files changed, 196 insertions, 133 deletions
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index f5de2fd..e80f9f6 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -382,7 +382,6 @@ struct ivtv_mailbox_data {
#define IVTV_F_I_RADIO_USER 5 /* The radio tuner is selected */
#define IVTV_F_I_DIG_RST 6 /* Reset digitizer */
#define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */
-#define IVTV_F_I_ENC_VBI 8 /* VBI DMA */
#define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */
#define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */
#define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */
@@ -405,7 +404,7 @@ struct ivtv_mailbox_data {
#define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */
/* Scatter-Gather array element, used in DMA transfers */
-struct ivtv_SG_element {
+struct ivtv_sg_element {
u32 src;
u32 dst;
u32 size;
@@ -417,7 +416,7 @@ struct ivtv_user_dma {
struct page *map[IVTV_DMA_SG_OSD_ENT];
/* Base Dev SG Array for cx23415/6 */
- struct ivtv_SG_element SGarray[IVTV_DMA_SG_OSD_ENT];
+ struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
dma_addr_t SG_handle;
int SG_length;
@@ -468,6 +467,10 @@ struct ivtv_stream {
int dma; /* can be PCI_DMA_TODEVICE,
PCI_DMA_FROMDEVICE or
PCI_DMA_NONE */
+ u32 pending_offset;
+ u32 pending_backup;
+ u64 pending_pts;
+
u32 dma_offset;
u32 dma_backup;
u64 dma_pts;
@@ -493,10 +496,13 @@ struct ivtv_stream {
u16 dma_xfer_cnt;
/* Base Dev SG Array for cx23415/6 */
- struct ivtv_SG_element *SGarray;
- struct ivtv_SG_element *PIOarray;
- dma_addr_t SG_handle;
- int SG_length;
+ struct ivtv_sg_element *sg_pending;
+ struct ivtv_sg_element *sg_processing;
+ struct ivtv_sg_element *sg_dma;
+ dma_addr_t sg_handle;
+ int sg_pending_size;
+ int sg_processing_size;
+ int sg_processed;
/* SG List of Buffers */
struct scatterlist *SGlist;
@@ -637,7 +643,6 @@ struct vbi_info {
u32 enc_start, enc_size;
int fpi;
u32 frame;
- u32 dma_offset;
u8 cc_data_odd[256];
u8 cc_data_even[256];
int cc_pos;
@@ -724,6 +729,7 @@ struct ivtv {
int cur_pio_stream; /* index of stream doing PIO */
u32 dma_data_req_offset;
u32 dma_data_req_size;
+ int dma_retries;
int output_mode; /* NONE, MPG, YUV, UDMA YUV, passthrough */
spinlock_t lock; /* lock access to this struct */
int search_pack_header;
diff --git a/drivers/media/video/ivtv/ivtv-irq.c b/drivers/media/video/ivtv/ivtv-irq.c
index 8644f3dd..9695e53 100644
--- a/drivers/media/video/ivtv/ivtv-irq.c
+++ b/drivers/media/video/ivtv/ivtv-irq.c
@@ -60,18 +60,18 @@ static void ivtv_pio_work_handler(struct ivtv *itv)
buf = list_entry(s->q_dma.list.next, struct ivtv_buffer, list);
list_for_each(p, &s->q_dma.list) {
struct ivtv_buffer *buf = list_entry(p, struct ivtv_buffer, list);
- u32 size = s->PIOarray[i].size & 0x3ffff;
+ u32 size = s->sg_processing[i].size & 0x3ffff;
/* Copy the data from the card to the buffer */
if (s->type == IVTV_DEC_STREAM_TYPE_VBI) {
- memcpy_fromio(buf->buf, itv->dec_mem + s->PIOarray[i].src - IVTV_DECODER_OFFSET, size);
+ memcpy_fromio(buf->buf, itv->dec_mem + s->sg_processing[i].src - IVTV_DECODER_OFFSET, size);
}
else {
- memcpy_fromio(buf->buf, itv->enc_mem + s->PIOarray[i].src, size);
+ memcpy_fromio(buf->buf, itv->enc_mem + s->sg_processing[i].src, size);
}
- if (s->PIOarray[i].size & 0x80000000)
- break;
i++;
+ if (i == s->sg_processing_size)
+ break;
}
write_reg(IVTV_IRQ_ENC_PIO_COMPLETE, 0x44);
}
@@ -105,7 +105,7 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
u32 offset, size;
u32 UVoffset = 0, UVsize = 0;
int skip_bufs = s->q_predma.buffers;
- int idx = s->SG_length;
+ int idx = s->sg_pending_size;
int rc;
/* sanity checks */
@@ -123,7 +123,7 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
case IVTV_ENC_STREAM_TYPE_MPG:
offset = data[1];
size = data[2];
- s->dma_pts = 0;
+ s->pending_pts = 0;
break;
case IVTV_ENC_STREAM_TYPE_YUV:
@@ -131,13 +131,13 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
size = data[2];
UVoffset = data[3];
UVsize = data[4];
- s->dma_pts = ((u64) data[5] << 32) | data[6];
+ s->pending_pts = ((u64) data[5] << 32) | data[6];
break;
case IVTV_ENC_STREAM_TYPE_PCM:
offset = data[1] + 12;
size = data[2] - 12;
- s->dma_pts = read_dec(offset - 8) |
+ s->pending_pts = read_dec(offset - 8) |
((u64)(read_dec(offset - 12)) << 32);
if (itv->has_cx23415)
offset += IVTV_DECODER_OFFSET;
@@ -150,13 +150,13 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
IVTV_DEBUG_INFO("VBI offset == 0\n");
return -1;
}
- s->dma_pts = read_enc(offset - 4) | ((u64)read_enc(offset - 8) << 32);
+ s->pending_pts = read_enc(offset - 4) | ((u64)read_enc(offset - 8) << 32);
break;
case IVTV_DEC_STREAM_TYPE_VBI:
size = read_dec(itv->vbi.dec_start + 4) + 8;
offset = read_dec(itv->vbi.dec_start) + itv->vbi.dec_start;
- s->dma_pts = 0;
+ s->pending_pts = 0;
offset += IVTV_DECODER_OFFSET;
break;
default:
@@ -165,17 +165,17 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
}
/* if this is the start of the DMA then fill in the magic cookie */
- if (s->SG_length == 0) {
+ if (s->sg_pending_size == 0) {
if (itv->has_cx23415 && (s->type == IVTV_ENC_STREAM_TYPE_PCM ||
s->type == IVTV_DEC_STREAM_TYPE_VBI)) {
- s->dma_backup = read_dec(offset - IVTV_DECODER_OFFSET);
+ s->pending_backup = read_dec(offset - IVTV_DECODER_OFFSET);
write_dec_sync(cpu_to_le32(DMA_MAGIC_COOKIE), offset - IVTV_DECODER_OFFSET);
}
else {
- s->dma_backup = read_enc(offset);
+ s->pending_backup = read_enc(offset);
write_enc_sync(cpu_to_le32(DMA_MAGIC_COOKIE), offset);
}
- s->dma_offset = offset;
+ s->pending_offset = offset;
}
bytes_needed = size;
@@ -202,7 +202,7 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
}
s->buffers_stolen = rc;
- /* got the buffers, now fill in SGarray (DMA) */
+ /* got the buffers, now fill in sg_pending */
buf = list_entry(s->q_predma.list.next, struct ivtv_buffer, list);
memset(buf->buf, 0, 128);
list_for_each(p, &s->q_predma.list) {
@@ -210,9 +210,9 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
if (skip_bufs-- > 0)
continue;
- s->SGarray[idx].dst = cpu_to_le32(buf->dma_handle);
- s->SGarray[idx].src = cpu_to_le32(offset);
- s->SGarray[idx].size = cpu_to_le32(s->buf_size);
+ s->sg_pending[idx].dst = buf->dma_handle;
+ s->sg_pending[idx].src = offset;
+ s->sg_pending[idx].size = s->buf_size;
buf->bytesused = (size < s->buf_size) ? size : s->buf_size;
buf->dma_xfer_cnt = s->dma_xfer_cnt;
@@ -230,7 +230,7 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA
}
idx++;
}
- s->SG_length = idx;
+ s->sg_pending_size = idx;
return 0;
}
@@ -332,9 +332,9 @@ void ivtv_dma_stream_dec_prepare(struct ivtv_stream *s, u32 offset, int lock)
offset = uv_offset;
y_done = 1;
}
- s->SGarray[idx].src = cpu_to_le32(buf->dma_handle);
- s->SGarray[idx].dst = cpu_to_le32(offset);
- s->SGarray[idx].size = cpu_to_le32(buf->bytesused);
+ s->sg_pending[idx].src = buf->dma_handle;
+ s->sg_pending[idx].dst = offset;
+ s->sg_pending[idx].size = buf->bytesused;
offset += buf->bytesused;
bytes_written += buf->bytesused;
@@ -343,10 +343,7 @@ void ivtv_dma_stream_dec_prepare(struct ivtv_stream *s, u32 offset, int lock)
ivtv_buf_sync_for_device(s, buf);
idx++;
}
- s->SG_length = idx;
-
- /* Mark last buffer size for Interrupt flag */
- s->SGarray[s->SG_length - 1].size |= cpu_to_le32(0x80000000);
+ s->sg_pending_size = idx;
/* Sync Hardware SG List of buffers */
ivtv_stream_sync_for_device(s);
@@ -362,6 +359,34 @@ void ivtv_dma_stream_dec_prepare(struct ivtv_stream *s, u32 offset, int lock)
spin_unlock_irqrestore(&itv->dma_reg_lock, flags);
}
+static void ivtv_dma_enc_start_xfer(struct ivtv_stream *s)
+{
+ struct ivtv *itv = s->itv;
+
+ s->sg_dma->src = cpu_to_le32(s->sg_processing[s->sg_processed].src);
+ s->sg_dma->dst = cpu_to_le32(s->sg_processing[s->sg_processed].dst);
+ s->sg_dma->size = cpu_to_le32(s->sg_processing[s->sg_processed].size | 0x80000000);
+ s->sg_processed++;
+ /* Sync Hardware SG List of buffers */
+ ivtv_stream_sync_for_device(s);
+ write_reg(s->sg_handle, IVTV_REG_ENCDMAADDR);
+ write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x02, IVTV_REG_DMAXFER);
+}
+
+static void ivtv_dma_dec_start_xfer(struct ivtv_stream *s)
+{
+ struct ivtv *itv = s->itv;
+
+ s->sg_dma->src = cpu_to_le32(s->sg_processing[s->sg_processed].src);
+ s->sg_dma->dst = cpu_to_le32(s->sg_processing[s->sg_processed].dst);
+ s->sg_dma->size = cpu_to_le32(s->sg_processing[s->sg_processed].size | 0x80000000);
+ s->sg_processed++;
+ /* Sync Hardware SG List of buffers */
+ ivtv_stream_sync_for_device(s);
+ write_reg(s->sg_handle, IVTV_REG_DECDMAADDR);
+ write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER);
+}
+
/* start the encoder DMA */
static void ivtv_dma_enc_start(struct ivtv_stream *s)
{
@@ -375,8 +400,7 @@ static void ivtv_dma_enc_start(struct ivtv_stream *s)
ivtv_queue_move(s, &s->q_predma, NULL, &s->q_dma, s->q_predma.bytesused);
if (ivtv_use_dma(s))
- s->SGarray[s->SG_length - 1].size =
- cpu_to_le32(le32_to_cpu(s->SGarray[s->SG_length - 1].size) + 256);
+ s->sg_pending[s->sg_pending_size - 1].size += 256;
/* If this is an MPEG stream, and VBI data is also pending, then append the
VBI DMA to the MPEG DMA and transfer both sets of data at once.
@@ -387,45 +411,39 @@ static void ivtv_dma_enc_start(struct ivtv_stream *s)
sure we only use the MPEG DMA to transfer the VBI DMA if both are in
use. This way no conflicts occur. */
clear_bit(IVTV_F_S_DMA_HAS_VBI, &s->s_flags);
- if (s->type == IVTV_ENC_STREAM_TYPE_MPG && s_vbi->SG_length &&
- s->SG_length + s_vbi->SG_length <= s->buffers) {
+ if (s->type == IVTV_ENC_STREAM_TYPE_MPG && s_vbi->sg_pending_size &&
+ s->sg_pending_size + s_vbi->sg_pending_size <= s->buffers) {
ivtv_queue_move(s_vbi, &s_vbi->q_predma, NULL, &s_vbi->q_dma, s_vbi->q_predma.bytesused);
if (ivtv_use_dma(s_vbi))
- s_vbi->SGarray[s_vbi->SG_length - 1].size = cpu_to_le32(le32_to_cpu(s_vbi->SGarray[s->SG_length - 1].size) + 256);
- for (i = 0; i < s_vbi->SG_length; i++) {
- s->SGarray[s->SG_length++] = s_vbi->SGarray[i];
+ s_vbi->sg_pending[s_vbi->sg_pending_size - 1].size += 256;
+ for (i = 0; i < s_vbi->sg_pending_size; i++) {
+ s->sg_pending[s->sg_pending_size++] = s_vbi->sg_pending[i];
}
- itv->vbi.dma_offset = s_vbi->dma_offset;
- s_vbi->SG_length = 0;
+ s_vbi->dma_offset = s_vbi->pending_offset;
+ s_vbi->sg_pending_size = 0;
s_vbi->dma_xfer_cnt++;
set_bit(IVTV_F_S_DMA_HAS_VBI, &s->s_flags);
IVTV_DEBUG_HI_DMA("include DMA for %s\n", s->name);
}
- /* Mark last buffer size for Interrupt flag */
- s->SGarray[s->SG_length - 1].size |= cpu_to_le32(0x80000000);
s->dma_xfer_cnt++;
-
- if (s->type == IVTV_ENC_STREAM_TYPE_VBI)
- set_bit(IVTV_F_I_ENC_VBI, &itv->i_flags);
- else
- clear_bit(IVTV_F_I_ENC_VBI, &itv->i_flags);
+ memcpy(s->sg_processing, s->sg_pending, sizeof(struct ivtv_sg_element) * s->sg_pending_size);
+ s->sg_processing_size = s->sg_pending_size;
+ s->sg_pending_size = 0;
+ s->sg_processed = 0;
+ s->dma_offset = s->pending_offset;
+ s->dma_backup = s->pending_backup;
+ s->dma_pts = s->pending_pts;
if (ivtv_use_pio(s)) {
- for (i = 0; i < s->SG_length; i++) {
- s->PIOarray[i].src = le32_to_cpu(s->SGarray[i].src);
- s->PIOarray[i].size = le32_to_cpu(s->SGarray[i].size);
- }
set_bit(IVTV_F_I_WORK_HANDLER_PIO, &itv->i_flags);
set_bit(IVTV_F_I_HAVE_WORK, &itv->i_flags);
set_bit(IVTV_F_I_PIO, &itv->i_flags);
itv->cur_pio_stream = s->type;
}
else {
- /* Sync Hardware SG List of buffers */
- ivtv_stream_sync_for_device(s);
- write_reg(s->SG_handle, IVTV_REG_ENCDMAADDR);
- write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x02, IVTV_REG_DMAXFER);
+ itv->dma_retries = 0;
+ ivtv_dma_enc_start_xfer(s);
set_bit(IVTV_F_I_DMA, &itv->i_flags);
itv->cur_dma_stream = s->type;
itv->dma_timer.expires = jiffies + msecs_to_jiffies(100);
@@ -439,10 +457,15 @@ static void ivtv_dma_dec_start(struct ivtv_stream *s)
if (s->q_predma.bytesused)
ivtv_queue_move(s, &s->q_predma, NULL, &s->q_dma, s->q_predma.bytesused);
+ s->dma_xfer_cnt++;
+ memcpy(s->sg_processing, s->sg_pending, sizeof(struct ivtv_sg_element) * s->sg_pending_size);
+ s->sg_processing_size = s->sg_pending_size;
+ s->sg_pending_size = 0;
+ s->sg_processed = 0;
+
IVTV_DEBUG_HI_DMA("start DMA for %s\n", s->name);
- /* put SG Handle into register 0x0c */
- write_reg(s->SG_handle, IVTV_REG_DECDMAADDR);
- write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER);
+ itv->dma_retries = 0;
+ ivtv_dma_dec_start_xfer(s);
set_bit(IVTV_F_I_DMA, &itv->i_flags);
itv->cur_dma_stream = s->type;
itv->dma_timer.expires = jiffies + msecs_to_jiffies(100);
@@ -453,27 +476,42 @@ static void ivtv_irq_dma_read(struct ivtv *itv)
{
struct ivtv_stream *s = NULL;
struct ivtv_buffer *buf;
- int hw_stream_type;
+ int hw_stream_type = 0;
IVTV_DEBUG_HI_IRQ("DEC DMA READ\n");
- del_timer(&itv->dma_timer);
- if (read_reg(IVTV_REG_DMASTATUS) & 0x14) {
- IVTV_DEBUG_WARN("DEC DMA ERROR %x\n", read_reg(IVTV_REG_DMASTATUS));
- write_reg(read_reg(IVTV_REG_DMASTATUS) & 3, IVTV_REG_DMASTATUS);
+ if (!test_bit(IVTV_F_I_UDMA, &itv->i_flags) && itv->cur_dma_stream < 0) {
+ del_timer(&itv->dma_timer);
+ return;
}
+
if (!test_bit(IVTV_F_I_UDMA, &itv->i_flags)) {
- if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags)) {
- s = &itv->streams[IVTV_DEC_STREAM_TYPE_YUV];
- hw_stream_type = 2;
+ s = &itv->streams[itv->cur_dma_stream];
+ ivtv_stream_sync_for_cpu(s);
+
+ if (read_reg(IVTV_REG_DMASTATUS) & 0x14) {
+ IVTV_DEBUG_WARN("DEC DMA ERROR %x (xfer %d of %d, retry %d)\n",
+ read_reg(IVTV_REG_DMASTATUS),
+ s->sg_processed, s->sg_processing_size, itv->dma_retries);
+ write_reg(read_reg(IVTV_REG_DMASTATUS) & 3, IVTV_REG_DMASTATUS);
+ if (itv->dma_retries == 3) {
+ itv->dma_retries = 0;
+ }
+ else {
+ /* Retry, starting with the first xfer segment.
+ Just retrying the current segment is not sufficient. */
+ s->sg_processed = 0;
+ itv->dma_retries++;
+ }
}
- else {
- s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];
- hw_stream_type = 0;
+ if (s->sg_processed < s->sg_processing_size) {
+ /* DMA next buffer */
+ ivtv_dma_dec_start_xfer(s);
+ return;
}
+ if (s->type == IVTV_DEC_STREAM_TYPE_YUV)
+ hw_stream_type = 2;
IVTV_DEBUG_HI_DMA("DEC DATA READ %s: %d\n", s->name, s->q_dma.bytesused);
- ivtv_stream_sync_for_cpu(s);
-
/* For some reason must kick the firmware, like PIO mode,
I think this tells the firmware we are done and the size
of the xfer so it can calculate what we need next.
@@ -490,6 +528,7 @@ static void ivtv_irq_dma_read(struct ivtv *itv)
}
wake_up(&s->waitq);
}
+ del_timer(&itv->dma_timer);
clear_bit(IVTV_F_I_UDMA, &itv->i_flags);
clear_bit(IVTV_F_I_DMA, &itv->i_flags);
itv->cur_dma_stream = -1;
@@ -501,33 +540,44 @@ static void ivtv_irq_enc_dma_complete(struct ivtv *itv)
u32 data[CX2341X_MBOX_MAX_DATA];
struct ivtv_stream *s;
- del_timer(&itv->dma_timer);
ivtv_api_get_data(&itv->enc_mbox, IVTV_MBOX_DMA_END, data);
- IVTV_DEBUG_HI_IRQ("ENC DMA COMPLETE %x %d\n", data[0], data[1]);
- if (test_and_clear_bit(IVTV_F_I_ENC_VBI, &itv->i_flags))
- data[1] = 3;
- else if (data[1] > 2)
+ IVTV_DEBUG_HI_IRQ("ENC DMA COMPLETE %x %d (%d)\n", data[0], data[1], itv->cur_dma_stream);
+ if (itv->cur_dma_stream < 0) {
+ del_timer(&itv->dma_timer);
return;
- s = &itv->streams[ivtv_stream_map[data[1]]];
+ }
+ s = &itv->streams[itv->cur_dma_stream];
+ ivtv_stream_sync_for_cpu(s);
+
if (data[0] & 0x18) {
- IVTV_DEBUG_WARN("ENC DMA ERROR %x\n", data[0]);
+ IVTV_DEBUG_WARN("ENC DMA ERROR %x (offset %08x, xfer %d of %d, retry %d)\n", data[0],
+ s->dma_offset, s->sg_processed, s->sg_processing_size, itv->dma_retries);
write_reg(read_reg(IVTV_REG_DMASTATUS) & 3, IVTV_REG_DMASTATUS);
- ivtv_vapi(itv, CX2341X_ENC_SCHED_DMA_TO_HOST, 3, 0, 0, data[1]);
+ if (itv->dma_retries == 3) {
+ itv->dma_retries = 0;
+ }
+ else {
+ /* Retry, starting with the first xfer segment.
+ Just retrying the current segment is not sufficient. */
+ s->sg_processed = 0;
+ itv->dma_retries++;
+ }
}
- s->SG_length = 0;
+ if (s->sg_processed < s->sg_processing_size) {
+ /* DMA next buffer */
+ ivtv_dma_enc_start_xfer(s);
+ return;
+ }
+ del_timer(&itv->dma_timer);
clear_bit(IVTV_F_I_DMA, &itv->i_flags);
itv->cur_dma_stream = -1;
dma_post(s);
- ivtv_stream_sync_for_cpu(s);
if (test_and_clear_bit(IVTV_F_S_DMA_HAS_VBI, &s->s_flags)) {
- u32 tmp;
-
s = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
- tmp = s->dma_offset;
- s->dma_offset = itv->vbi.dma_offset;
dma_post(s);
- s->dma_offset = tmp;
}
+ s->sg_processing_size = 0;
+ s->sg_processed = 0;
wake_up(&itv->dma_waitq);
}
@@ -541,8 +591,7 @@ static void ivtv_irq_enc_pio_complete(struct ivtv *itv)
}
s = &itv->streams[itv->cur_pio_stream];
IVTV_DEBUG_HI_IRQ("ENC PIO COMPLETE %s\n", s->name);
- s->SG_length = 0;
- clear_bit(IVTV_F_I_ENC_VBI, &itv->i_flags);
+ s->sg_pending_size = 0;
clear_bit(IVTV_F_I_PIO, &itv->i_flags);
itv->cur_pio_stream = -1;
dma_post(s);
@@ -554,13 +603,8 @@ static void ivtv_irq_enc_pio_complete(struct ivtv *itv)
ivtv_vapi(itv, CX2341X_ENC_SCHED_DMA_TO_HOST, 3, 0, 0, 2);
clear_bit(IVTV_F_I_PIO, &itv->i_flags);
if (test_and_clear_bit(IVTV_F_S_DMA_HAS_VBI, &s->s_flags)) {
- u32 tmp;
-
s = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
- tmp = s->dma_offset;
- s->dma_offset = itv->vbi.dma_offset;
dma_post(s);
- s->dma_offset = tmp;
}
wake_up(&itv->dma_waitq);
}
@@ -572,19 +616,23 @@ static void ivtv_irq_dma_err(struct ivtv *itv)
del_timer(&itv->dma_timer);
ivtv_api_get_data(&itv->enc_mbox, IVTV_MBOX_DMA_END, data);
IVTV_DEBUG_WARN("DMA ERROR %08x %08x %08x %d\n", data[0], data[1],
- read_reg(IVTV_REG_DMASTATUS), itv->cur_dma_stream);
+ read_reg(IVTV_REG_DMASTATUS), itv->cur_dma_stream);
+ write_reg(read_reg(IVTV_REG_DMASTATUS) & 3, IVTV_REG_DMASTATUS);
if (!test_bit(IVTV_F_I_UDMA, &itv->i_flags) &&
itv->cur_dma_stream >= 0 && itv->cur_dma_stream < IVTV_MAX_STREAMS) {
struct ivtv_stream *s = &itv->streams[itv->cur_dma_stream];
/* retry */
- write_reg(read_reg(IVTV_REG_DMASTATUS) & 3, IVTV_REG_DMASTATUS);
if (s->type >= IVTV_DEC_STREAM_TYPE_MPG)
ivtv_dma_dec_start(s);
else
ivtv_dma_enc_start(s);
return;
}
+ if (test_bit(IVTV_F_I_UDMA, &itv->i_flags)) {
+ ivtv_udma_start(itv);
+ return;
+ }
clear_bit(IVTV_F_I_UDMA, &itv->i_flags);
clear_bit(IVTV_F_I_DMA, &itv->i_flags);
itv->cur_dma_stream = -1;
@@ -628,14 +676,14 @@ static void ivtv_irq_enc_vbi_cap(struct ivtv *itv)
DMA the data. Since at most four VBI DMA buffers are available,
we just drop the old requests when there are already three
requests queued. */
- if (s->SG_length > 2) {
+ if (s->sg_pending_size > 2) {
struct list_head *p;
list_for_each(p, &s->q_predma.list) {
struct ivtv_buffer *buf = list_entry(p, struct ivtv_buffer, list);
ivtv_buf_sync_for_cpu(s, buf);
}
ivtv_queue_move(s, &s->q_predma, NULL, &s->q_free, 0);
- s->SG_length = 0;
+ s->sg_pending_size = 0;
}
/* if we can append the data, and the MPEG stream isn't capturing,
then start a DMA request for just the VBI data. */
diff --git a/drivers/media/video/ivtv/ivtv-queue.c b/drivers/media/video/ivtv/ivtv-queue.c
index bff75ae..d9a1478 100644
--- a/drivers/media/video/ivtv/ivtv-queue.c
+++ b/drivers/media/video/ivtv/ivtv-queue.c
@@ -195,7 +195,7 @@ void ivtv_flush_queues(struct ivtv_stream *s)
int ivtv_stream_alloc(struct ivtv_stream *s)
{
struct ivtv *itv = s->itv;
- int SGsize = sizeof(struct ivtv_SG_element) * s->buffers;
+ int SGsize = sizeof(struct ivtv_sg_element) * s->buffers;
int i;
if (s->buffers == 0)
@@ -205,27 +205,33 @@ int ivtv_stream_alloc(struct ivtv_stream *s)
s->dma != PCI_DMA_NONE ? "DMA " : "",
s->name, s->buffers, s->buf_size, s->buffers * s->buf_size / 1024);
- if (ivtv_might_use_pio(s)) {
- s->PIOarray = (struct ivtv_SG_element *)kzalloc(SGsize, GFP_KERNEL);
- if (s->PIOarray == NULL) {
- IVTV_ERR("Could not allocate PIOarray for %s stream\n", s->name);
- return -ENOMEM;
- }
+ s->sg_pending = (struct ivtv_sg_element *)kzalloc(SGsize, GFP_KERNEL);
+ if (s->sg_pending == NULL) {
+ IVTV_ERR("Could not allocate sg_pending for %s stream\n", s->name);
+ return -ENOMEM;
}
+ s->sg_pending_size = 0;
- /* Allocate DMA SG Arrays */
- s->SGarray = (struct ivtv_SG_element *)kzalloc(SGsize, GFP_KERNEL);
- if (s->SGarray == NULL) {
- IVTV_ERR("Could not allocate SGarray for %s stream\n", s->name);
- if (ivtv_might_use_pio(s)) {
- kfree(s->PIOarray);
- s->PIOarray = NULL;
- }
+ s->sg_processing = (struct ivtv_sg_element *)kzalloc(SGsize, GFP_KERNEL);
+ if (s->sg_processing == NULL) {
+ IVTV_ERR("Could not allocate sg_processing for %s stream\n", s->name);
+ kfree(s->sg_pending);
+ s->sg_pending = NULL;
+ return -ENOMEM;
+ }
+ s->sg_processing_size = 0;
+
+ s->sg_dma = (struct ivtv_sg_element *)kzalloc(sizeof(struct ivtv_sg_element), GFP_KERNEL);
+ if (s->sg_dma == NULL) {
+ IVTV_ERR("Could not allocate sg_dma for %s stream\n", s->name);
+ kfree(s->sg_pending);
+ s->sg_pending = NULL;
+ kfree(s->sg_processing);
+ s->sg_processing = NULL;
return -ENOMEM;
}
- s->SG_length = 0;
if (ivtv_might_use_dma(s)) {
- s->SG_handle = pci_map_single(itv->dev, s->SGarray, SGsize, s->dma);
+ s->sg_handle = pci_map_single(itv->dev, s->sg_dma, sizeof(struct ivtv_sg_element), s->dma);
ivtv_stream_sync_for_cpu(s);
}
@@ -272,16 +278,19 @@ void ivtv_stream_free(struct ivtv_stream *s)
}
/* Free SG Array/Lists */
- if (s->SGarray != NULL) {
- if (s->SG_handle != IVTV_DMA_UNMAPPED) {
- pci_unmap_single(s->itv->dev, s->SG_handle,
- sizeof(struct ivtv_SG_element) * s->buffers, PCI_DMA_TODEVICE);
- s->SG_handle = IVTV_DMA_UNMAPPED;
+ if (s->sg_dma != NULL) {
+ if (s->sg_handle != IVTV_DMA_UNMAPPED) {
+ pci_unmap_single(s->itv->dev, s->sg_handle,
+ sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
+ s->sg_handle = IVTV_DMA_UNMAPPED;
}
- kfree(s->SGarray);
- kfree(s->PIOarray);
- s->PIOarray = NULL;
- s->SGarray = NULL;
- s->SG_length = 0;
+ kfree(s->sg_pending);
+ kfree(s->sg_processing);
+ kfree(s->sg_dma);
+ s->sg_pending = NULL;
+ s->sg_processing = NULL;
+ s->sg_dma = NULL;
+ s->sg_pending_size = 0;
+ s->sg_processing_size = 0;
}
}
diff --git a/drivers/media/video/ivtv/ivtv-queue.h b/drivers/media/video/ivtv/ivtv-queue.h
index 2ed8d54..14a9f7f 100644
--- a/drivers/media/video/ivtv/ivtv-queue.h
+++ b/drivers/media/video/ivtv/ivtv-queue.h
@@ -79,13 +79,13 @@ void ivtv_stream_free(struct ivtv_stream *s);
static inline void ivtv_stream_sync_for_cpu(struct ivtv_stream *s)
{
if (ivtv_use_dma(s))
- pci_dma_sync_single_for_cpu(s->itv->dev, s->SG_handle,
- sizeof(struct ivtv_SG_element) * s->buffers, PCI_DMA_TODEVICE);
+ pci_dma_sync_single_for_cpu(s->itv->dev, s->sg_handle,
+ sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
}
static inline void ivtv_stream_sync_for_device(struct ivtv_stream *s)
{
if (ivtv_use_dma(s))
- pci_dma_sync_single_for_device(s->itv->dev, s->SG_handle,
- sizeof(struct ivtv_SG_element) * s->buffers, PCI_DMA_TODEVICE);
+ pci_dma_sync_single_for_device(s->itv->dev, s->sg_handle,
+ sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
}
diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c
index 0582b9d..d1cc366 100644
--- a/drivers/media/video/ivtv/ivtv-streams.c
+++ b/drivers/media/video/ivtv/ivtv-streams.c
@@ -154,7 +154,7 @@ static void ivtv_stream_init(struct ivtv *itv, int type)
spin_lock_init(&s->qlock);
init_waitqueue_head(&s->waitq);
s->id = -1;
- s->SG_handle = IVTV_DMA_UNMAPPED;
+ s->sg_handle = IVTV_DMA_UNMAPPED;
ivtv_queue_init(&s->q_free);
ivtv_queue_init(&s->q_full);
ivtv_queue_init(&s->q_dma);
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