diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-core.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-core.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index 0e149b22bd19..cf634606ba9a 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -231,7 +231,7 @@ cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf) * can use the whole SDRAM for the DMA fifos. To simplify things, we * use a static memory layout. That surely will waste memory in case * we don't use all DMA channels at the same time (which will be the - * case most of the time). But that still gives us enougth FIFO space + * case most of the time). But that still gives us enough FIFO space * to be able to deal with insane long pci latencies ... * * FIFO space allocations: @@ -241,6 +241,7 @@ cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf) * channel 24 (vbi) - 4.0k * channels 25+26 (audio) - 4.0k * channel 28 (mpeg) - 4.0k + * channel 27 (audio rds)- 3.0k * TOTAL = 29.0k * * Every channel has 160 bytes control data (64 bytes instruction @@ -337,6 +338,18 @@ struct sram_channel cx88_sram_channels[] = { .cnt1_reg = MO_DMA28_CNT1, .cnt2_reg = MO_DMA28_CNT2, }, + [SRAM_CH27] = { + .name = "audio rds", + .cmds_start = 0x1801C0, + .ctrl_start = 0x180860, + .cdt = 0x180860 + 64, + .fifo_start = 0x187400, + .fifo_size = 0x000C00, + .ptr1_reg = MO_DMA27_PTR1, + .ptr2_reg = MO_DMA27_PTR2, + .cnt1_reg = MO_DMA27_CNT1, + .cnt2_reg = MO_DMA27_CNT2, + }, }; int cx88_sram_channel_setup(struct cx88_core *core, @@ -598,6 +611,7 @@ int cx88_reset(struct cx88_core *core) cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], 128, 0); cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], 128, 0); cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH28], 188*4, 0); + cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH27], 128, 0); /* misc init ... */ cx_write(MO_INPUT_FORMAT, ((1 << 13) | // agc enable @@ -796,6 +810,8 @@ int cx88_start_audio_dma(struct cx88_core *core) /* constant 128 made buzz in analog Nicam-stereo for bigger fifo_size */ int bpl = cx88_sram_channels[SRAM_CH25].fifo_size/4; + int rds_bpl = cx88_sram_channels[SRAM_CH27].fifo_size/AUD_RDS_LINES; + /* If downstream RISC is enabled, bail out; ALSA is managing DMA */ if (cx_read(MO_AUD_DMACNTRL) & 0x10) return 0; @@ -803,12 +819,14 @@ int cx88_start_audio_dma(struct cx88_core *core) /* setup fifo + format */ cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], bpl, 0); cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], bpl, 0); + cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH27], + rds_bpl, 0); cx_write(MO_AUDD_LNGTH, bpl); /* fifo bpl size */ - cx_write(MO_AUDR_LNGTH, bpl); /* fifo bpl size */ + cx_write(MO_AUDR_LNGTH, rds_bpl); /* fifo bpl size */ - /* start dma */ - cx_write(MO_AUD_DMACNTRL, 0x0003); /* Up and Down fifo enable */ + /* enable Up, Down and Audio RDS fifo */ + cx_write(MO_AUD_DMACNTRL, 0x0007); return 0; } @@ -1010,7 +1028,6 @@ struct video_device *cx88_vdev_init(struct cx88_core *core, if (NULL == vfd) return NULL; *vfd = *template; - vfd->minor = -1; vfd->v4l2_dev = &core->v4l2_dev; vfd->parent = &pci->dev; vfd->release = video_device_release; |