diff options
Diffstat (limited to 'drivers/media/video/cx18')
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 33 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.h | 14 |
2 files changed, 38 insertions, 9 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 7f65a47f12e1..458f5f072374 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -91,7 +91,7 @@ static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE; static int enc_ts_bufs = -1; static int enc_mpg_bufs = -1; -static int enc_idx_bufs = -1; +static int enc_idx_bufs = CX18_MAX_FW_MDLS_PER_STREAM; static int enc_yuv_bufs = -1; static int enc_vbi_bufs = -1; static int enc_pcm_bufs = -1; @@ -196,14 +196,17 @@ MODULE_PARM_DESC(enc_mpg_bufs, "Number of encoder MPG buffers\n" "\t\t\tDefault is computed from other enc_mpg_* parameters"); MODULE_PARM_DESC(enc_idx_buffers, - "Encoder IDX buffer memory (MB). (enc_idx_bufs can override)\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFFERS)); + "(Deprecated) Encoder IDX buffer memory (MB)\n" + "\t\t\tIgnored, except 0 disables IDX buffer allocations\n" + "\t\t\tDefault: 1 [Enabled]"); MODULE_PARM_DESC(enc_idx_bufsize, "Size of an encoder IDX buffer (kB)\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFSIZE)); + "\t\t\tAllowed values are multiples of 1.5 kB rounded up\n" + "\t\t\t(multiples of size required for 64 index entries)\n" + "\t\t\tDefault: 2"); MODULE_PARM_DESC(enc_idx_bufs, "Number of encoder IDX buffers\n" - "\t\t\tDefault is computed from other enc_idx_* parameters"); + "\t\t\tDefault: " __stringify(CX18_MAX_FW_MDLS_PER_STREAM)); MODULE_PARM_DESC(enc_yuv_buffers, "Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS)); @@ -501,7 +504,12 @@ static void cx18_process_options(struct cx18 *cx) /* * YUV is a special case where the stream_buf_size needs to be * an integral multiple of 33.75 kB (storage for 32 screens - * lines to maintain alignment in case of lost buffers + * lines to maintain alignment in case of lost buffers). + * + * IDX is a special case where the stream_buf_size should be + * an integral multiple of 1.5 kB (storage for 64 index entries + * to maintain alignment in case of lost buffers). + * */ if (i == CX18_ENC_STREAM_TYPE_YUV) { cx->stream_buf_size[i] *= 1024; @@ -511,15 +519,24 @@ static void cx18_process_options(struct cx18 *cx) if (cx->stream_buf_size[i] < CX18_UNIT_ENC_YUV_BUFSIZE) cx->stream_buf_size[i] = CX18_UNIT_ENC_YUV_BUFSIZE; + } else if (i == CX18_ENC_STREAM_TYPE_IDX) { + cx->stream_buf_size[i] *= 1024; + cx->stream_buf_size[i] -= + (cx->stream_buf_size[i] % CX18_UNIT_ENC_IDX_BUFSIZE); + + if (cx->stream_buf_size[i] < CX18_UNIT_ENC_IDX_BUFSIZE) + cx->stream_buf_size[i] = + CX18_UNIT_ENC_IDX_BUFSIZE; } /* - * YUV is a special case where the stream_buf_size is + * YUV and IDX are special cases where the stream_buf_size is * now in bytes. * VBI is a special case where the stream_buf_size is fixed * and already in bytes */ if (i == CX18_ENC_STREAM_TYPE_VBI || - i == CX18_ENC_STREAM_TYPE_YUV) { + i == CX18_ENC_STREAM_TYPE_YUV || + i == CX18_ENC_STREAM_TYPE_IDX) { if (cx->stream_buffers[i] < 0) { cx->stream_buffers[i] = cx->options.megabytes[i] * 1024 * 1024 diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index e3f7911a7385..ff3426206765 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -126,10 +126,22 @@ #define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32) #define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32) +/* IDX buffer size should be a multiple of the index entry size from the chip */ +struct cx18_enc_idx_entry { + __le32 length; + __le32 offset_low; + __le32 offset_high; + __le32 flags; + __le32 pts_low; + __le32 pts_high; +} __attribute__ ((packed)); +#define CX18_UNIT_ENC_IDX_BUFSIZE \ + (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES) + /* DMA buffer, default size in kB allocated */ #define CX18_DEFAULT_ENC_TS_BUFSIZE 32 #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 -#define CX18_DEFAULT_ENC_IDX_BUFSIZE 32 +#define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1) #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1) #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 |