diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-driver.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 6dd51e27582c..7f65a47f12e1 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -87,7 +87,6 @@ static int enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE; static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE; static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE; static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE; -/* VBI bufsize based on standards supported by card tuner for now */ static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE; static int enc_ts_bufs = -1; @@ -128,7 +127,6 @@ module_param(enc_ts_bufsize, int, 0644); module_param(enc_mpg_bufsize, int, 0644); module_param(enc_idx_bufsize, int, 0644); module_param(enc_yuv_bufsize, int, 0644); -/* VBI bufsize based on standards supported by card tuner for now */ module_param(enc_pcm_bufsize, int, 0644); module_param(enc_ts_bufs, int, 0644); @@ -211,7 +209,9 @@ MODULE_PARM_DESC(enc_yuv_buffers, "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS)); MODULE_PARM_DESC(enc_yuv_bufsize, "Size of an encoder YUV buffer (kB)\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFSIZE)); + "\t\t\tAllowed values are multiples of 33.75 kB rounded up\n" + "\t\t\t(multiples of size required for 32 screen lines)\n" + "\t\t\tDefault: 102"); MODULE_PARM_DESC(enc_yuv_bufs, "Number of encoder YUV buffers\n" "\t\t\tDefault is computed from other enc_yuv_* parameters"); @@ -220,7 +220,7 @@ MODULE_PARM_DESC(enc_vbi_buffers, "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS)); MODULE_PARM_DESC(enc_vbi_bufs, "Number of encoder VBI buffers\n" - "\t\t\tDefault is computed from enc_vbi_buffers & tuner std"); + "\t\t\tDefault is computed from enc_vbi_buffers"); MODULE_PARM_DESC(enc_pcm_buffers, "Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS)); @@ -499,10 +499,27 @@ static void cx18_process_options(struct cx18 *cx) continue; } /* + * 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 + */ + if (i == CX18_ENC_STREAM_TYPE_YUV) { + cx->stream_buf_size[i] *= 1024; + cx->stream_buf_size[i] -= + (cx->stream_buf_size[i] % CX18_UNIT_ENC_YUV_BUFSIZE); + + if (cx->stream_buf_size[i] < CX18_UNIT_ENC_YUV_BUFSIZE) + cx->stream_buf_size[i] = + CX18_UNIT_ENC_YUV_BUFSIZE; + } + /* + * YUV is a special case 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) { + if (i == CX18_ENC_STREAM_TYPE_VBI || + i == CX18_ENC_STREAM_TYPE_YUV) { if (cx->stream_buffers[i] < 0) { cx->stream_buffers[i] = cx->options.megabytes[i] * 1024 * 1024 @@ -513,18 +530,24 @@ static void cx18_process_options(struct cx18 *cx) cx->stream_buffers[i] * cx->stream_buf_size[i]/(1024 * 1024); } - continue; - } - /* All other streams have stream_buf_size in kB at this point */ - if (cx->stream_buffers[i] < 0) { - cx->stream_buffers[i] = cx->options.megabytes[i] * 1024 - / cx->stream_buf_size[i]; } else { - /* N.B. This might round down to 0 */ - cx->options.megabytes[i] = - cx->stream_buffers[i] * cx->stream_buf_size[i] / 1024; + /* All other streams have stream_buf_size in kB here */ + if (cx->stream_buffers[i] < 0) { + cx->stream_buffers[i] = + cx->options.megabytes[i] * 1024 + / cx->stream_buf_size[i]; + } else { + /* N.B. This might round down to 0 */ + cx->options.megabytes[i] = + cx->stream_buffers[i] + * cx->stream_buf_size[i] / 1024; + } + /* convert from kB to bytes */ + cx->stream_buf_size[i] *= 1024; } - cx->stream_buf_size[i] *= 1024; /* convert from kB to bytes */ + CX18_DEBUG_INFO("Stream type %d options: %d MB, %d buffers, " + "%d bytes\n", i, cx->options.megabytes[i], + cx->stream_buffers[i], cx->stream_buf_size[i]); } cx->options.cardtype = cardtype[cx->instance]; @@ -669,6 +692,12 @@ 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; } @@ -883,7 +912,6 @@ static int __devinit cx18_probe(struct pci_dev *pci_dev, CX18_ERR("Could not register A/V decoder subdevice\n"); goto free_map; } - cx18_call_hw(cx, CX18_HW_418_AV, core, init, 0); /* Initialize GPIO Reset Controller to do chip resets during i2c init */ if (cx->card->hw_all & CX18_HW_GPIO_RESET_CTRL) { @@ -1200,7 +1228,7 @@ static struct pci_driver cx18_pci_driver = { .remove = cx18_remove, }; -static int module_start(void) +static int __init module_start(void) { printk(KERN_INFO "cx18: Start initialization, version %s\n", CX18_VERSION); @@ -1224,7 +1252,7 @@ static int module_start(void) return 0; } -static void module_cleanup(void) +static void __exit module_cleanup(void) { pci_unregister_driver(&cx18_pci_driver); } |