#include <linux/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>
Data type declarations - Can be moded to a header file later
****************************************************************************/
-/* These can be replaced after done */
-#define MIXER_ADDR_LAST MAX_CX88_INPUT
-
struct cx88_audio_dev {
struct cx88_core *core;
struct cx88_dmaqueue q;
- u64 starttime;
/* pci i/o */
struct pci_dev *pci;
unsigned int period_size;
unsigned int num_periods;
- struct videobuf_dmabuf dma_risc;
-
- int mixer_volume[MIXER_ADDR_LAST+1][2];
- int capture_source[MIXER_ADDR_LAST+1][2];
+ struct videobuf_dmabuf *dma_risc;
struct cx88_buffer *buf;
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
-static struct snd_card *snd_cx88_cards[SNDRV_CARDS];
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
BUG_ON(!chip->dma_size);
dprintk(2,"Freeing buffer\n");
- videobuf_pci_dma_unmap(chip->pci, &chip->dma_risc);
- videobuf_dma_free(&chip->dma_risc);
+ videobuf_pci_dma_unmap(chip->pci, chip->dma_risc);
+ videobuf_dma_free(chip->dma_risc);
btcx_riscmem_free(chip->pci,&chip->buf->risc);
kfree(chip->buf);
+ chip->dma_risc = NULL;
chip->dma_size = 0;
return 0;
struct snd_pcm_hw_params * hw_params)
{
snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
+ struct videobuf_dmabuf *dma;
+
struct cx88_buffer *buf;
int ret;
BUG_ON(!chip->dma_size);
BUG_ON(chip->num_periods & (chip->num_periods-1));
- buf = kzalloc(sizeof(*buf), GFP_KERNEL);
+ buf = videobuf_pci_alloc(sizeof(*buf));
if (NULL == buf)
return -ENOMEM;
buf->vb.height = chip->num_periods;
buf->vb.size = chip->dma_size;
- videobuf_dma_init(&buf->vb.dma);
- ret = videobuf_dma_init_kernel(&buf->vb.dma, PCI_DMA_FROMDEVICE,
+ dma=videobuf_to_dma(&buf->vb);
+ videobuf_dma_init(dma);
+ ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
(PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
if (ret < 0)
goto error;
- ret = videobuf_pci_dma_map(chip->pci,&buf->vb.dma);
+ ret = videobuf_pci_dma_map(chip->pci,dma);
if (ret < 0)
goto error;
- ret = cx88_risc_databuffer(chip->pci, &buf->risc, buf->vb.dma.sglist,
+ ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist,
buf->vb.width, buf->vb.height, 1);
if (ret < 0)
goto error;
buf->vb.state = STATE_PREPARED;
chip->buf = buf;
- chip->dma_risc = buf->vb.dma;
+ chip->dma_risc = dma;
- substream->runtime->dma_area = chip->dma_risc.vmalloc;
+ substream->runtime->dma_area = chip->dma_risc->vmalloc;
+ substream->runtime->dma_bytes = chip->dma_size;
+ substream->runtime->dma_addr = 0;
return 0;
error:
return runtime->period_size * (count & (runtime->periods-1));
}
+/*
+ * page callback (needed for mmap)
+ */
+static struct page *snd_cx88_page(struct snd_pcm_substream *substream,
+ unsigned long offset)
+{
+ void *pageptr = substream->runtime->dma_area + offset;
+ return vmalloc_to_page(pageptr);
+}
+
/*
* operators
*/
.prepare = snd_cx88_prepare,
.trigger = snd_cx88_card_trigger,
.pointer = snd_cx88_pointer,
+ .page = snd_cx88_page,
};
/*
struct snd_ctl_elem_info *info)
{
info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- info->count = 1;
+ info->count = 2;
info->value.integer.min = 0;
info->value.integer.max = 0x3f;
{
snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
struct cx88_core *core=chip->core;
+ int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f),
+ bal = cx_read(AUD_BAL_CTL);
- value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
+ value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol;
+ vol -= (bal & 0x3f);
+ value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol;
return 0;
}
{
snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
struct cx88_core *core=chip->core;
- int v;
- u32 old_control;
-
+ int v, b;
+ int changed = 0;
+ u32 old;
+
+ b = value->value.integer.value[1] - value->value.integer.value[0];
+ if (b < 0) {
+ v = 0x3f - value->value.integer.value[0];
+ b = (-b) | 0x40;
+ } else {
+ v = 0x3f - value->value.integer.value[1];
+ }
/* Do we really know this will always be called with IRQs on? */
spin_lock_irq(&chip->reg_lock);
-
- old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
- v = 0x3f - (value->value.integer.value[0] & 0x3f);
- cx_andor(AUD_VOL_CTL, 0x3f, v);
-
+ old = cx_read(AUD_VOL_CTL);
+ if (v != (old & 0x3f)) {
+ cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
+ changed = 1;
+ }
+ if (cx_read(AUD_BAL_CTL) != b) {
+ cx_write(AUD_BAL_CTL, b);
+ changed = 1;
+ }
spin_unlock_irq(&chip->reg_lock);
- return v != old_control;
+ return changed;
}
static struct snd_kcontrol_new snd_cx88_capture_volume = {
return (err);
err = snd_cx88_pcm(chip, 0, "CX88 Digital");
-
- if (err < 0) {
- snd_card_free(card);
- return (err);
- }
+ if (err < 0)
+ goto error;
err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip));
- if (err < 0) {
- snd_card_free(card);
- return (err);
- }
+ if (err < 0)
+ goto error;
strcpy (card->driver, "CX88x");
sprintf(card->shortname, "Conexant CX%x", pci->device);
card->driver,devno);
err = snd_card_register(card);
- if (err < 0) {
- snd_card_free(card);
- return (err);
- }
- snd_cx88_cards[devno] = card;
-
+ if (err < 0)
+ goto error;
pci_set_drvdata(pci,card);
devno++;
return 0;
+
+error:
+ snd_card_free(card);
+ return err;
}
/*
* ALSA destructor
projects / linux-2.6 / blobdiff